| // CodeMirror, copyright (c) by Marijn Haverbeke and others |
| // Distributed under an MIT license: https://codemirror.net/LICENSE |
| |
| // This is CodeMirror (https://codemirror.net), a code editor |
| // implemented in JavaScript on top of the browser's DOM. |
| // |
| // You can find some technical background for some of the code below |
| // at http://marijnhaverbeke.nl/blog/#cm-internals . |
| |
| (function (global, factory) { |
| typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() : |
| typeof define === 'function' && define.amd ? define(factory) : |
| (global.CodeMirror = factory()); |
| }(self, (function () { 'use strict'; |
| |
| // Kludges for bugs and behavior differences that can't be feature |
| // detected are enabled based on userAgent etc sniffing. |
| var userAgent = navigator.userAgent; |
| var platform = navigator.platform; |
| |
| var gecko = /gecko\/\d/i.test(userAgent); |
| var ie_upto10 = /MSIE \d/.test(userAgent); |
| var ie_11up = /Trident\/(?:[7-9]|\d{2,})\..*rv:(\d+)/.exec(userAgent); |
| var edge = /Edge\/(\d+)/.exec(userAgent); |
| var ie = ie_upto10 || ie_11up || edge; |
| var ie_version = ie && (ie_upto10 ? document.documentMode || 6 : +(edge || ie_11up)[1]); |
| var webkit = !edge && /WebKit\//.test(userAgent); |
| var qtwebkit = webkit && /Qt\/\d+\.\d+/.test(userAgent); |
| var chrome = !edge && /Chrome\//.test(userAgent); |
| var presto = /Opera\//.test(userAgent); |
| var safari = /Apple Computer/.test(navigator.vendor); |
| var mac_geMountainLion = /Mac OS X 1\d\D([8-9]|\d\d)\D/.test(userAgent); |
| var phantom = /PhantomJS/.test(userAgent); |
| |
| var ios = !edge && /AppleWebKit/.test(userAgent) && /Mobile\/\w+/.test(userAgent); |
| var android = /Android/.test(userAgent); |
| // This is woefully incomplete. Suggestions for alternative methods welcome. |
| var mobile = ios || android || /webOS|BlackBerry|Opera Mini|Opera Mobi|IEMobile/i.test(userAgent); |
| var mac = ios || /Mac/.test(platform); |
| var chromeOS = /\bCrOS\b/.test(userAgent); |
| var windows = /win/i.test(platform); |
| |
| var presto_version = presto && userAgent.match(/Version\/(\d*\.\d*)/); |
| if (presto_version) { presto_version = Number(presto_version[1]); } |
| if (presto_version && presto_version >= 15) { presto = false; webkit = true; } |
| // Some browsers use the wrong event properties to signal cmd/ctrl on OS X |
| var flipCtrlCmd = mac && (qtwebkit || presto && (presto_version == null || presto_version < 12.11)); |
| var captureRightClick = gecko || (ie && ie_version >= 9); |
| |
| function classTest(cls) { return new RegExp("(^|\\s)" + cls + "(?:$|\\s)\\s*") } |
| |
| var rmClass = function(node, cls) { |
| var current = node.className; |
| var match = classTest(cls).exec(current); |
| if (match) { |
| var after = current.slice(match.index + match[0].length); |
| node.className = current.slice(0, match.index) + (after ? match[1] + after : ""); |
| } |
| }; |
| |
| function removeChildren(e) { |
| for (var count = e.childNodes.length; count > 0; --count) |
| { e.removeChild(e.firstChild); } |
| return e |
| } |
| |
| function removeChildrenAndAdd(parent, e) { |
| return removeChildren(parent).appendChild(e) |
| } |
| |
| function elt(tag, content, className, style) { |
| var e = document.createElement(tag); |
| if (className) { e.className = className; } |
| if (style) { e.style.cssText = style; } |
| if (typeof content == "string") { e.appendChild(document.createTextNode(content)); } |
| else if (content) { for (var i = 0; i < content.length; ++i) { e.appendChild(content[i]); } } |
| return e |
| } |
| // wrapper for elt, which removes the elt from the accessibility tree |
| function eltP(tag, content, className, style) { |
| var e = elt(tag, content, className, style); |
| e.setAttribute("role", "presentation"); |
| return e |
| } |
| |
| var range; |
| if (document.createRange) { range = function(node, start, end, endNode) { |
| var r = document.createRange(); |
| r.setEnd(endNode || node, end); |
| r.setStart(node, start); |
| return r |
| }; } |
| else { range = function(node, start, end) { |
| var r = document.body.createTextRange(); |
| try { r.moveToElementText(node.parentNode); } |
| catch(e) { return r } |
| r.collapse(true); |
| r.moveEnd("character", end); |
| r.moveStart("character", start); |
| return r |
| }; } |
| |
| function contains(parent, child) { |
| if (child.nodeType == 3) // Android browser always returns false when child is a textnode |
| { child = child.parentNode; } |
| if (parent.contains) |
| { return parent.contains(child) } |
| do { |
| if (child.nodeType == 11) { child = child.host; } |
| if (child == parent) { return true } |
| } while (child = child.parentNode) |
| } |
| |
| function activeElt() { |
| // IE and Edge may throw an "Unspecified Error" when accessing document.activeElement. |
| // IE < 10 will throw when accessed while the page is loading or in an iframe. |
| // IE > 9 and Edge will throw when accessed in an iframe if document.body is unavailable. |
| var activeElement; |
| try { |
| activeElement = document.activeElement; |
| } catch(e) { |
| activeElement = document.body || null; |
| } |
| while (activeElement && activeElement.shadowRoot && activeElement.shadowRoot.activeElement) |
| { activeElement = activeElement.shadowRoot.activeElement; } |
| return activeElement |
| } |
| |
| function addClass(node, cls) { |
| var current = node.className; |
| if (!classTest(cls).test(current)) { node.className += (current ? " " : "") + cls; } |
| } |
| function joinClasses(a, b) { |
| var as = a.split(" "); |
| for (var i = 0; i < as.length; i++) |
| { if (as[i] && !classTest(as[i]).test(b)) { b += " " + as[i]; } } |
| return b |
| } |
| |
| var selectInput = function(node) { node.select(); }; |
| if (ios) // Mobile Safari apparently has a bug where select() is broken. |
| { selectInput = function(node) { node.selectionStart = 0; node.selectionEnd = node.value.length; }; } |
| else if (ie) // Suppress mysterious IE10 errors |
| { selectInput = function(node) { try { node.select(); } catch(_e) {} }; } |
| |
| function bind(f) { |
| var args = Array.prototype.slice.call(arguments, 1); |
| return function(){return f.apply(null, args)} |
| } |
| |
| function copyObj(obj, target, overwrite) { |
| if (!target) { target = {}; } |
| for (var prop in obj) |
| { if (obj.hasOwnProperty(prop) && (overwrite !== false || !target.hasOwnProperty(prop))) |
| { target[prop] = obj[prop]; } } |
| return target |
| } |
| |
| // Counts the column offset in a string, taking tabs into account. |
| // Used mostly to find indentation. |
| function countColumn(string, end, tabSize, startIndex, startValue) { |
| if (end == null) { |
| end = string.search(/[^\s\u00a0]/); |
| if (end == -1) { end = string.length; } |
| } |
| for (var i = startIndex || 0, n = startValue || 0;;) { |
| var nextTab = string.indexOf("\t", i); |
| if (nextTab < 0 || nextTab >= end) |
| { return n + (end - i) } |
| n += nextTab - i; |
| n += tabSize - (n % tabSize); |
| i = nextTab + 1; |
| } |
| } |
| |
| var Delayed = function() {this.id = null;}; |
| Delayed.prototype.set = function (ms, f) { |
| clearTimeout(this.id); |
| this.id = setTimeout(f, ms); |
| }; |
| |
| function indexOf(array, elt) { |
| for (var i = 0; i < array.length; ++i) |
| { if (array[i] == elt) { return i } } |
| return -1 |
| } |
| |
| // Number of pixels added to scroller and sizer to hide scrollbar |
| var scrollerGap = 30; |
| |
| // Returned or thrown by various protocols to signal 'I'm not |
| // handling this'. |
| var Pass = {toString: function(){return "CodeMirror.Pass"}}; |
| |
| // Reused option objects for setSelection & friends |
| var sel_dontScroll = {scroll: false}, sel_mouse = {origin: "*mouse"}, sel_move = {origin: "+move"}; |
| |
| // The inverse of countColumn -- find the offset that corresponds to |
| // a particular column. |
| function findColumn(string, goal, tabSize) { |
| for (var pos = 0, col = 0;;) { |
| var nextTab = string.indexOf("\t", pos); |
| if (nextTab == -1) { nextTab = string.length; } |
| var skipped = nextTab - pos; |
| if (nextTab == string.length || col + skipped >= goal) |
| { return pos + Math.min(skipped, goal - col) } |
| col += nextTab - pos; |
| col += tabSize - (col % tabSize); |
| pos = nextTab + 1; |
| if (col >= goal) { return pos } |
| } |
| } |
| |
| var spaceStrs = [""]; |
| function spaceStr(n) { |
| while (spaceStrs.length <= n) |
| { spaceStrs.push(lst(spaceStrs) + " "); } |
| return spaceStrs[n] |
| } |
| |
| function lst(arr) { return arr[arr.length-1] } |
| |
| function map(array, f) { |
| var out = []; |
| for (var i = 0; i < array.length; i++) { out[i] = f(array[i], i); } |
| return out |
| } |
| |
| function insertSorted(array, value, score) { |
| var pos = 0, priority = score(value); |
| while (pos < array.length && score(array[pos]) <= priority) { pos++; } |
| array.splice(pos, 0, value); |
| } |
| |
| function nothing() {} |
| |
| function createObj(base, props) { |
| var inst; |
| if (Object.create) { |
| inst = Object.create(base); |
| } else { |
| nothing.prototype = base; |
| inst = new nothing(); |
| } |
| if (props) { copyObj(props, inst); } |
| return inst |
| } |
| |
| var nonASCIISingleCaseWordChar = /[\u00df\u0587\u0590-\u05f4\u0600-\u06ff\u3040-\u309f\u30a0-\u30ff\u3400-\u4db5\u4e00-\u9fcc\uac00-\ud7af]/; |
| function isWordCharBasic(ch) { |
| return /\w/.test(ch) || ch > "\x80" && |
| (ch.toUpperCase() != ch.toLowerCase() || nonASCIISingleCaseWordChar.test(ch)) |
| } |
| function isWordChar(ch, helper) { |
| if (!helper) { return isWordCharBasic(ch) } |
| if (helper.source.indexOf("\\w") > -1 && isWordCharBasic(ch)) { return true } |
| return helper.test(ch) |
| } |
| |
| function isEmpty(obj) { |
| for (var n in obj) { if (obj.hasOwnProperty(n) && obj[n]) { return false } } |
| return true |
| } |
| |
| // Extending unicode characters. A series of a non-extending char + |
| // any number of extending chars is treated as a single unit as far |
| // as editing and measuring is concerned. This is not fully correct, |
| // since some scripts/fonts/browsers also treat other configurations |
| // of code points as a group. |
| var extendingChars = /[\u0300-\u036f\u0483-\u0489\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u064b-\u065e\u0670\u06d6-\u06dc\u06de-\u06e4\u06e7\u06e8\u06ea-\u06ed\u0711\u0730-\u074a\u07a6-\u07b0\u07eb-\u07f3\u0816-\u0819\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0900-\u0902\u093c\u0941-\u0948\u094d\u0951-\u0955\u0962\u0963\u0981\u09bc\u09be\u09c1-\u09c4\u09cd\u09d7\u09e2\u09e3\u0a01\u0a02\u0a3c\u0a41\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a70\u0a71\u0a75\u0a81\u0a82\u0abc\u0ac1-\u0ac5\u0ac7\u0ac8\u0acd\u0ae2\u0ae3\u0b01\u0b3c\u0b3e\u0b3f\u0b41-\u0b44\u0b4d\u0b56\u0b57\u0b62\u0b63\u0b82\u0bbe\u0bc0\u0bcd\u0bd7\u0c3e-\u0c40\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62\u0c63\u0cbc\u0cbf\u0cc2\u0cc6\u0ccc\u0ccd\u0cd5\u0cd6\u0ce2\u0ce3\u0d3e\u0d41-\u0d44\u0d4d\u0d57\u0d62\u0d63\u0dca\u0dcf\u0dd2-\u0dd4\u0dd6\u0ddf\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0eb1\u0eb4-\u0eb9\u0ebb\u0ebc\u0ec8-\u0ecd\u0f18\u0f19\u0f35\u0f37\u0f39\u0f71-\u0f7e\u0f80-\u0f84\u0f86\u0f87\u0f90-\u0f97\u0f99-\u0fbc\u0fc6\u102d-\u1030\u1032-\u1037\u1039\u103a\u103d\u103e\u1058\u1059\u105e-\u1060\u1071-\u1074\u1082\u1085\u1086\u108d\u109d\u135f\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17b7-\u17bd\u17c6\u17c9-\u17d3\u17dd\u180b-\u180d\u18a9\u1920-\u1922\u1927\u1928\u1932\u1939-\u193b\u1a17\u1a18\u1a56\u1a58-\u1a5e\u1a60\u1a62\u1a65-\u1a6c\u1a73-\u1a7c\u1a7f\u1b00-\u1b03\u1b34\u1b36-\u1b3a\u1b3c\u1b42\u1b6b-\u1b73\u1b80\u1b81\u1ba2-\u1ba5\u1ba8\u1ba9\u1c2c-\u1c33\u1c36\u1c37\u1cd0-\u1cd2\u1cd4-\u1ce0\u1ce2-\u1ce8\u1ced\u1dc0-\u1de6\u1dfd-\u1dff\u200c\u200d\u20d0-\u20f0\u2cef-\u2cf1\u2de0-\u2dff\u302a-\u302f\u3099\u309a\ua66f-\ua672\ua67c\ua67d\ua6f0\ua6f1\ua802\ua806\ua80b\ua825\ua826\ua8c4\ua8e0-\ua8f1\ua926-\ua92d\ua947-\ua951\ua980-\ua982\ua9b3\ua9b6-\ua9b9\ua9bc\uaa29-\uaa2e\uaa31\uaa32\uaa35\uaa36\uaa43\uaa4c\uaab0\uaab2-\uaab4\uaab7\uaab8\uaabe\uaabf\uaac1\uabe5\uabe8\uabed\udc00-\udfff\ufb1e\ufe00-\ufe0f\ufe20-\ufe26\uff9e\uff9f]/; |
| function isExtendingChar(ch) { return ch.charCodeAt(0) >= 768 && extendingChars.test(ch) } |
| |
| // Returns a number from the range [`0`; `str.length`] unless `pos` is outside that range. |
| function skipExtendingChars(str, pos, dir) { |
| while ((dir < 0 ? pos > 0 : pos < str.length) && isExtendingChar(str.charAt(pos))) { pos += dir; } |
| return pos |
| } |
| |
| // Returns the value from the range [`from`; `to`] that satisfies |
| // `pred` and is closest to `from`. Assumes that at least `to` |
| // satisfies `pred`. Supports `from` being greater than `to`. |
| function findFirst(pred, from, to) { |
| // At any point we are certain `to` satisfies `pred`, don't know |
| // whether `from` does. |
| var dir = from > to ? -1 : 1; |
| for (;;) { |
| if (from == to) { return from } |
| var midF = (from + to) / 2, mid = dir < 0 ? Math.ceil(midF) : Math.floor(midF); |
| if (mid == from) { return pred(mid) ? from : to } |
| if (pred(mid)) { to = mid; } |
| else { from = mid + dir; } |
| } |
| } |
| |
| // BIDI HELPERS |
| |
| function iterateBidiSections(order, from, to, f) { |
| if (!order) { return f(from, to, "ltr", 0) } |
| var found = false; |
| for (var i = 0; i < order.length; ++i) { |
| var part = order[i]; |
| if (part.from < to && part.to > from || from == to && part.to == from) { |
| f(Math.max(part.from, from), Math.min(part.to, to), part.level == 1 ? "rtl" : "ltr", i); |
| found = true; |
| } |
| } |
| if (!found) { f(from, to, "ltr"); } |
| } |
| |
| var bidiOther = null; |
| function getBidiPartAt(order, ch, sticky) { |
| var found; |
| bidiOther = null; |
| for (var i = 0; i < order.length; ++i) { |
| var cur = order[i]; |
| if (cur.from < ch && cur.to > ch) { return i } |
| if (cur.to == ch) { |
| if (cur.from != cur.to && sticky == "before") { found = i; } |
| else { bidiOther = i; } |
| } |
| if (cur.from == ch) { |
| if (cur.from != cur.to && sticky != "before") { found = i; } |
| else { bidiOther = i; } |
| } |
| } |
| return found != null ? found : bidiOther |
| } |
| |
| // Bidirectional ordering algorithm |
| // See http://unicode.org/reports/tr9/tr9-13.html for the algorithm |
| // that this (partially) implements. |
| |
| // One-char codes used for character types: |
| // L (L): Left-to-Right |
| // R (R): Right-to-Left |
| // r (AL): Right-to-Left Arabic |
| // 1 (EN): European Number |
| // + (ES): European Number Separator |
| // % (ET): European Number Terminator |
| // n (AN): Arabic Number |
| // , (CS): Common Number Separator |
| // m (NSM): Non-Spacing Mark |
| // b (BN): Boundary Neutral |
| // s (B): Paragraph Separator |
| // t (S): Segment Separator |
| // w (WS): Whitespace |
| // N (ON): Other Neutrals |
| |
| // Returns null if characters are ordered as they appear |
| // (left-to-right), or an array of sections ({from, to, level} |
| // objects) in the order in which they occur visually. |
| var bidiOrdering = (function() { |
| // Character types for codepoints 0 to 0xff |
| var lowTypes = "bbbbbbbbbtstwsbbbbbbbbbbbbbbssstwNN%%%NNNNNN,N,N1111111111NNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNbbbbbbsbbbbbbbbbbbbbbbbbbbbbbbbbb,N%%%%NNNNLNNNNN%%11NLNNN1LNNNNNLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLN"; |
| // Character types for codepoints 0x600 to 0x6f9 |
| var arabicTypes = "nnnnnnNNr%%r,rNNmmmmmmmmmmmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmmmnnnnnnnnnn%nnrrrmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmnNmmmmmmrrmmNmmmmrr1111111111"; |
| function charType(code) { |
| if (code <= 0xf7) { return lowTypes.charAt(code) } |
| else if (0x590 <= code && code <= 0x5f4) { return "R" } |
| else if (0x600 <= code && code <= 0x6f9) { return arabicTypes.charAt(code - 0x600) } |
| else if (0x6ee <= code && code <= 0x8ac) { return "r" } |
| else if (0x2000 <= code && code <= 0x200b) { return "w" } |
| else if (code == 0x200c) { return "b" } |
| else { return "L" } |
| } |
| |
| var bidiRE = /[\u0590-\u05f4\u0600-\u06ff\u0700-\u08ac]/; |
| var isNeutral = /[stwN]/, isStrong = /[LRr]/, countsAsLeft = /[Lb1n]/, countsAsNum = /[1n]/; |
| |
| function BidiSpan(level, from, to) { |
| this.level = level; |
| this.from = from; this.to = to; |
| } |
| |
| return function(str, direction) { |
| var outerType = direction == "ltr" ? "L" : "R"; |
| |
| if (str.length == 0 || direction == "ltr" && !bidiRE.test(str)) { return false } |
| var len = str.length, types = []; |
| for (var i = 0; i < len; ++i) |
| { types.push(charType(str.charCodeAt(i))); } |
| |
| // W1. Examine each non-spacing mark (NSM) in the level run, and |
| // change the type of the NSM to the type of the previous |
| // character. If the NSM is at the start of the level run, it will |
| // get the type of sor. |
| for (var i$1 = 0, prev = outerType; i$1 < len; ++i$1) { |
| var type = types[i$1]; |
| if (type == "m") { types[i$1] = prev; } |
| else { prev = type; } |
| } |
| |
| // W2. Search backwards from each instance of a European number |
| // until the first strong type (R, L, AL, or sor) is found. If an |
| // AL is found, change the type of the European number to Arabic |
| // number. |
| // W3. Change all ALs to R. |
| for (var i$2 = 0, cur = outerType; i$2 < len; ++i$2) { |
| var type$1 = types[i$2]; |
| if (type$1 == "1" && cur == "r") { types[i$2] = "n"; } |
| else if (isStrong.test(type$1)) { cur = type$1; if (type$1 == "r") { types[i$2] = "R"; } } |
| } |
| |
| // W4. A single European separator between two European numbers |
| // changes to a European number. A single common separator between |
| // two numbers of the same type changes to that type. |
| for (var i$3 = 1, prev$1 = types[0]; i$3 < len - 1; ++i$3) { |
| var type$2 = types[i$3]; |
| if (type$2 == "+" && prev$1 == "1" && types[i$3+1] == "1") { types[i$3] = "1"; } |
| else if (type$2 == "," && prev$1 == types[i$3+1] && |
| (prev$1 == "1" || prev$1 == "n")) { types[i$3] = prev$1; } |
| prev$1 = type$2; |
| } |
| |
| // W5. A sequence of European terminators adjacent to European |
| // numbers changes to all European numbers. |
| // W6. Otherwise, separators and terminators change to Other |
| // Neutral. |
| for (var i$4 = 0; i$4 < len; ++i$4) { |
| var type$3 = types[i$4]; |
| if (type$3 == ",") { types[i$4] = "N"; } |
| else if (type$3 == "%") { |
| var end = (void 0); |
| for (end = i$4 + 1; end < len && types[end] == "%"; ++end) {} |
| var replace = (i$4 && types[i$4-1] == "!") || (end < len && types[end] == "1") ? "1" : "N"; |
| for (var j = i$4; j < end; ++j) { types[j] = replace; } |
| i$4 = end - 1; |
| } |
| } |
| |
| // W7. Search backwards from each instance of a European number |
| // until the first strong type (R, L, or sor) is found. If an L is |
| // found, then change the type of the European number to L. |
| for (var i$5 = 0, cur$1 = outerType; i$5 < len; ++i$5) { |
| var type$4 = types[i$5]; |
| if (cur$1 == "L" && type$4 == "1") { types[i$5] = "L"; } |
| else if (isStrong.test(type$4)) { cur$1 = type$4; } |
| } |
| |
| // N1. A sequence of neutrals takes the direction of the |
| // surrounding strong text if the text on both sides has the same |
| // direction. European and Arabic numbers act as if they were R in |
| // terms of their influence on neutrals. Start-of-level-run (sor) |
| // and end-of-level-run (eor) are used at level run boundaries. |
| // N2. Any remaining neutrals take the embedding direction. |
| for (var i$6 = 0; i$6 < len; ++i$6) { |
| if (isNeutral.test(types[i$6])) { |
| var end$1 = (void 0); |
| for (end$1 = i$6 + 1; end$1 < len && isNeutral.test(types[end$1]); ++end$1) {} |
| var before = (i$6 ? types[i$6-1] : outerType) == "L"; |
| var after = (end$1 < len ? types[end$1] : outerType) == "L"; |
| var replace$1 = before == after ? (before ? "L" : "R") : outerType; |
| for (var j$1 = i$6; j$1 < end$1; ++j$1) { types[j$1] = replace$1; } |
| i$6 = end$1 - 1; |
| } |
| } |
| |
| // Here we depart from the documented algorithm, in order to avoid |
| // building up an actual levels array. Since there are only three |
| // levels (0, 1, 2) in an implementation that doesn't take |
| // explicit embedding into account, we can build up the order on |
| // the fly, without following the level-based algorithm. |
| var order = [], m; |
| for (var i$7 = 0; i$7 < len;) { |
| if (countsAsLeft.test(types[i$7])) { |
| var start = i$7; |
| for (++i$7; i$7 < len && countsAsLeft.test(types[i$7]); ++i$7) {} |
| order.push(new BidiSpan(0, start, i$7)); |
| } else { |
| var pos = i$7, at = order.length; |
| for (++i$7; i$7 < len && types[i$7] != "L"; ++i$7) {} |
| for (var j$2 = pos; j$2 < i$7;) { |
| if (countsAsNum.test(types[j$2])) { |
| if (pos < j$2) { order.splice(at, 0, new BidiSpan(1, pos, j$2)); } |
| var nstart = j$2; |
| for (++j$2; j$2 < i$7 && countsAsNum.test(types[j$2]); ++j$2) {} |
| order.splice(at, 0, new BidiSpan(2, nstart, j$2)); |
| pos = j$2; |
| } else { ++j$2; } |
| } |
| if (pos < i$7) { order.splice(at, 0, new BidiSpan(1, pos, i$7)); } |
| } |
| } |
| if (direction == "ltr") { |
| if (order[0].level == 1 && (m = str.match(/^\s+/))) { |
| order[0].from = m[0].length; |
| order.unshift(new BidiSpan(0, 0, m[0].length)); |
| } |
| if (lst(order).level == 1 && (m = str.match(/\s+$/))) { |
| lst(order).to -= m[0].length; |
| order.push(new BidiSpan(0, len - m[0].length, len)); |
| } |
| } |
| |
| return direction == "rtl" ? order.reverse() : order |
| } |
| })(); |
| |
| // Get the bidi ordering for the given line (and cache it). Returns |
| // false for lines that are fully left-to-right, and an array of |
| // BidiSpan objects otherwise. |
| function getOrder(line, direction) { |
| var order = line.order; |
| if (order == null) { order = line.order = bidiOrdering(line.text, direction); } |
| return order |
| } |
| |
| // EVENT HANDLING |
| |
| // Lightweight event framework. on/off also work on DOM nodes, |
| // registering native DOM handlers. |
| |
| var noHandlers = []; |
| |
| var on = function(emitter, type, f) { |
| if (emitter.addEventListener) { |
| emitter.addEventListener(type, f, false); |
| } else if (emitter.attachEvent) { |
| emitter.attachEvent("on" + type, f); |
| } else { |
| var map$$1 = emitter._handlers || (emitter._handlers = {}); |
| map$$1[type] = (map$$1[type] || noHandlers).concat(f); |
| } |
| }; |
| |
| function getHandlers(emitter, type) { |
| return emitter._handlers && emitter._handlers[type] || noHandlers |
| } |
| |
| function off(emitter, type, f) { |
| if (emitter.removeEventListener) { |
| emitter.removeEventListener(type, f, false); |
| } else if (emitter.detachEvent) { |
| emitter.detachEvent("on" + type, f); |
| } else { |
| var map$$1 = emitter._handlers, arr = map$$1 && map$$1[type]; |
| if (arr) { |
| var index = indexOf(arr, f); |
| if (index > -1) |
| { map$$1[type] = arr.slice(0, index).concat(arr.slice(index + 1)); } |
| } |
| } |
| } |
| |
| function signal(emitter, type /*, values...*/) { |
| var handlers = getHandlers(emitter, type); |
| if (!handlers.length) { return } |
| var args = Array.prototype.slice.call(arguments, 2); |
| for (var i = 0; i < handlers.length; ++i) { handlers[i].apply(null, args); } |
| } |
| |
| // The DOM events that CodeMirror handles can be overridden by |
| // registering a (non-DOM) handler on the editor for the event name, |
| // and preventDefault-ing the event in that handler. |
| function signalDOMEvent(cm, e, override) { |
| if (typeof e == "string") |
| { e = {type: e, preventDefault: function() { this.defaultPrevented = true; }}; } |
| signal(cm, override || e.type, cm, e); |
| return e_defaultPrevented(e) || e.codemirrorIgnore |
| } |
| |
| function signalCursorActivity(cm) { |
| var arr = cm._handlers && cm._handlers.cursorActivity; |
| if (!arr) { return } |
| var set = cm.curOp.cursorActivityHandlers || (cm.curOp.cursorActivityHandlers = []); |
| for (var i = 0; i < arr.length; ++i) { if (indexOf(set, arr[i]) == -1) |
| { set.push(arr[i]); } } |
| } |
| |
| function hasHandler(emitter, type) { |
| return getHandlers(emitter, type).length > 0 |
| } |
| |
| // Add on and off methods to a constructor's prototype, to make |
| // registering events on such objects more convenient. |
| function eventMixin(ctor) { |
| ctor.prototype.on = function(type, f) {on(this, type, f);}; |
| ctor.prototype.off = function(type, f) {off(this, type, f);}; |
| } |
| |
| // Due to the fact that we still support jurassic IE versions, some |
| // compatibility wrappers are needed. |
| |
| function e_preventDefault(e) { |
| if (e.preventDefault) { e.preventDefault(); } |
| else { e.returnValue = false; } |
| } |
| function e_stopPropagation(e) { |
| if (e.stopPropagation) { e.stopPropagation(); } |
| else { e.cancelBubble = true; } |
| } |
| function e_defaultPrevented(e) { |
| return e.defaultPrevented != null ? e.defaultPrevented : e.returnValue == false |
| } |
| function e_stop(e) {e_preventDefault(e); e_stopPropagation(e);} |
| |
| function e_target(e) {return e.target || e.srcElement} |
| function e_button(e) { |
| var b = e.which; |
| if (b == null) { |
| if (e.button & 1) { b = 1; } |
| else if (e.button & 2) { b = 3; } |
| else if (e.button & 4) { b = 2; } |
| } |
| if (mac && e.ctrlKey && b == 1) { b = 3; } |
| return b |
| } |
| |
| // Detect drag-and-drop |
| var dragAndDrop = function() { |
| // There is *some* kind of drag-and-drop support in IE6-8, but I |
| // couldn't get it to work yet. |
| if (ie && ie_version < 9) { return false } |
| var div = elt('div'); |
| return "draggable" in div || "dragDrop" in div |
| }(); |
| |
| var zwspSupported; |
| function zeroWidthElement(measure) { |
| if (zwspSupported == null) { |
| var test = elt("span", "\u200b"); |
| removeChildrenAndAdd(measure, elt("span", [test, document.createTextNode("x")])); |
| if (measure.firstChild.offsetHeight != 0) |
| { zwspSupported = test.offsetWidth <= 1 && test.offsetHeight > 2 && !(ie && ie_version < 8); } |
| } |
| var node = zwspSupported ? elt("span", "\u200b") : |
| elt("span", "\u00a0", null, "display: inline-block; width: 1px; margin-right: -1px"); |
| node.setAttribute("cm-text", ""); |
| return node |
| } |
| |
| // Feature-detect IE's crummy client rect reporting for bidi text |
| var badBidiRects; |
| function hasBadBidiRects(measure) { |
| if (badBidiRects != null) { return badBidiRects } |
| var txt = removeChildrenAndAdd(measure, document.createTextNode("A\u062eA")); |
| var r0 = range(txt, 0, 1).getBoundingClientRect(); |
| var r1 = range(txt, 1, 2).getBoundingClientRect(); |
| removeChildren(measure); |
| if (!r0 || r0.left == r0.right) { return false } // Safari returns null in some cases (#2780) |
| return badBidiRects = (r1.right - r0.right < 3) |
| } |
| |
| // See if "".split is the broken IE version, if so, provide an |
| // alternative way to split lines. |
| var splitLinesAuto = "\n\nb".split(/\n/).length != 3 ? function (string) { |
| var pos = 0, result = [], l = string.length; |
| while (pos <= l) { |
| var nl = string.indexOf("\n", pos); |
| if (nl == -1) { nl = string.length; } |
| var line = string.slice(pos, string.charAt(nl - 1) == "\r" ? nl - 1 : nl); |
| var rt = line.indexOf("\r"); |
| if (rt != -1) { |
| result.push(line.slice(0, rt)); |
| pos += rt + 1; |
| } else { |
| result.push(line); |
| pos = nl + 1; |
| } |
| } |
| return result |
| } : function (string) { return string.split(/\r\n?|\n/); }; |
| |
| var hasSelection = window.getSelection ? function (te) { |
| try { return te.selectionStart != te.selectionEnd } |
| catch(e) { return false } |
| } : function (te) { |
| var range$$1; |
| try {range$$1 = te.ownerDocument.selection.createRange();} |
| catch(e) {} |
| if (!range$$1 || range$$1.parentElement() != te) { return false } |
| return range$$1.compareEndPoints("StartToEnd", range$$1) != 0 |
| }; |
| |
| var hasCopyEvent = (function () { |
| var e = elt("div"); |
| if ("oncopy" in e) { return true } |
| e.setAttribute("oncopy", "return;"); |
| return typeof e.oncopy == "function" |
| })(); |
| |
| var badZoomedRects = null; |
| function hasBadZoomedRects(measure) { |
| if (badZoomedRects != null) { return badZoomedRects } |
| var node = removeChildrenAndAdd(measure, elt("span", "x")); |
| var normal = node.getBoundingClientRect(); |
| var fromRange = range(node, 0, 1).getBoundingClientRect(); |
| return badZoomedRects = Math.abs(normal.left - fromRange.left) > 1 |
| } |
| |
| // Known modes, by name and by MIME |
| var modes = {}, mimeModes = {}; |
| |
| // Extra arguments are stored as the mode's dependencies, which is |
| // used by (legacy) mechanisms like loadmode.js to automatically |
| // load a mode. (Preferred mechanism is the require/define calls.) |
| function defineMode(name, mode) { |
| if (arguments.length > 2) |
| { mode.dependencies = Array.prototype.slice.call(arguments, 2); } |
| modes[name] = mode; |
| } |
| |
| function defineMIME(mime, spec) { |
| mimeModes[mime] = spec; |
| } |
| |
| // Given a MIME type, a {name, ...options} config object, or a name |
| // string, return a mode config object. |
| function resolveMode(spec) { |
| if (typeof spec == "string" && mimeModes.hasOwnProperty(spec)) { |
| spec = mimeModes[spec]; |
| } else if (spec && typeof spec.name == "string" && mimeModes.hasOwnProperty(spec.name)) { |
| var found = mimeModes[spec.name]; |
| if (typeof found == "string") { found = {name: found}; } |
| spec = createObj(found, spec); |
| spec.name = found.name; |
| } else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+xml$/.test(spec)) { |
| return resolveMode("application/xml") |
| } else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+json$/.test(spec)) { |
| return resolveMode("application/json") |
| } |
| if (typeof spec == "string") { return {name: spec} } |
| else { return spec || {name: "null"} } |
| } |
| |
| // Given a mode spec (anything that resolveMode accepts), find and |
| // initialize an actual mode object. |
| function getMode(options, spec) { |
| spec = resolveMode(spec); |
| var mfactory = modes[spec.name]; |
| if (!mfactory) { return getMode(options, "text/plain") } |
| var modeObj = mfactory(options, spec); |
| if (modeExtensions.hasOwnProperty(spec.name)) { |
| var exts = modeExtensions[spec.name]; |
| for (var prop in exts) { |
| if (!exts.hasOwnProperty(prop)) { continue } |
| if (modeObj.hasOwnProperty(prop)) { modeObj["_" + prop] = modeObj[prop]; } |
| modeObj[prop] = exts[prop]; |
| } |
| } |
| modeObj.name = spec.name; |
| if (spec.helperType) { modeObj.helperType = spec.helperType; } |
| if (spec.modeProps) { for (var prop$1 in spec.modeProps) |
| { modeObj[prop$1] = spec.modeProps[prop$1]; } } |
| |
| return modeObj |
| } |
| |
| // This can be used to attach properties to mode objects from |
| // outside the actual mode definition. |
| var modeExtensions = {}; |
| function extendMode(mode, properties) { |
| var exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {}); |
| copyObj(properties, exts); |
| } |
| |
| function copyState(mode, state) { |
| if (state === true) { return state } |
| if (mode.copyState) { return mode.copyState(state) } |
| var nstate = {}; |
| for (var n in state) { |
| var val = state[n]; |
| if (val instanceof Array) { val = val.concat([]); } |
| nstate[n] = val; |
| } |
| return nstate |
| } |
| |
| // Given a mode and a state (for that mode), find the inner mode and |
| // state at the position that the state refers to. |
| function innerMode(mode, state) { |
| var info; |
| while (mode.innerMode) { |
| info = mode.innerMode(state); |
| if (!info || info.mode == mode) { break } |
| state = info.state; |
| mode = info.mode; |
| } |
| return info || {mode: mode, state: state} |
| } |
| |
| function startState(mode, a1, a2) { |
| return mode.startState ? mode.startState(a1, a2) : true |
| } |
| |
| // STRING STREAM |
| |
| // Fed to the mode parsers, provides helper functions to make |
| // parsers more succinct. |
| |
| var StringStream = function(string, tabSize, lineOracle) { |
| this.pos = this.start = 0; |
| this.string = string; |
| this.tabSize = tabSize || 8; |
| this.lastColumnPos = this.lastColumnValue = 0; |
| this.lineStart = 0; |
| this.lineOracle = lineOracle; |
| }; |
| |
| StringStream.prototype.eol = function () {return this.pos >= this.string.length}; |
| StringStream.prototype.sol = function () {return this.pos == this.lineStart}; |
| StringStream.prototype.peek = function () {return this.string.charAt(this.pos) || undefined}; |
| StringStream.prototype.next = function () { |
| if (this.pos < this.string.length) |
| { return this.string.charAt(this.pos++) } |
| }; |
| StringStream.prototype.eat = function (match) { |
| var ch = this.string.charAt(this.pos); |
| var ok; |
| if (typeof match == "string") { ok = ch == match; } |
| else { ok = ch && (match.test ? match.test(ch) : match(ch)); } |
| if (ok) {++this.pos; return ch} |
| }; |
| StringStream.prototype.eatWhile = function (match) { |
| var start = this.pos; |
| while (this.eat(match)){} |
| return this.pos > start |
| }; |
| StringStream.prototype.eatSpace = function () { |
| var start = this.pos; |
| while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) { ++this.pos; } |
| return this.pos > start |
| }; |
| StringStream.prototype.skipToEnd = function () {this.pos = this.string.length;}; |
| StringStream.prototype.skipTo = function (ch) { |
| var found = this.string.indexOf(ch, this.pos); |
| if (found > -1) {this.pos = found; return true} |
| }; |
| StringStream.prototype.backUp = function (n) {this.pos -= n;}; |
| StringStream.prototype.column = function () { |
| if (this.lastColumnPos < this.start) { |
| this.lastColumnValue = countColumn(this.string, this.start, this.tabSize, this.lastColumnPos, this.lastColumnValue); |
| this.lastColumnPos = this.start; |
| } |
| return this.lastColumnValue - (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0) |
| }; |
| StringStream.prototype.indentation = function () { |
| return countColumn(this.string, null, this.tabSize) - |
| (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0) |
| }; |
| StringStream.prototype.match = function (pattern, consume, caseInsensitive) { |
| if (typeof pattern == "string") { |
| var cased = function (str) { return caseInsensitive ? str.toLowerCase() : str; }; |
| var substr = this.string.substr(this.pos, pattern.length); |
| if (cased(substr) == cased(pattern)) { |
| if (consume !== false) { this.pos += pattern.length; } |
| return true |
| } |
| } else { |
| var match = this.string.slice(this.pos).match(pattern); |
| if (match && match.index > 0) { return null } |
| if (match && consume !== false) { this.pos += match[0].length; } |
| return match |
| } |
| }; |
| StringStream.prototype.current = function (){return this.string.slice(this.start, this.pos)}; |
| StringStream.prototype.hideFirstChars = function (n, inner) { |
| this.lineStart += n; |
| try { return inner() } |
| finally { this.lineStart -= n; } |
| }; |
| StringStream.prototype.lookAhead = function (n) { |
| var oracle = this.lineOracle; |
| return oracle && oracle.lookAhead(n) |
| }; |
| StringStream.prototype.baseToken = function () { |
| var oracle = this.lineOracle; |
| return oracle && oracle.baseToken(this.pos) |
| }; |
| |
| // Find the line object corresponding to the given line number. |
| function getLine(doc, n) { |
| n -= doc.first; |
| if (n < 0 || n >= doc.size) { throw new Error("There is no line " + (n + doc.first) + " in the document.") } |
| var chunk = doc; |
| while (!chunk.lines) { |
| for (var i = 0;; ++i) { |
| var child = chunk.children[i], sz = child.chunkSize(); |
| if (n < sz) { chunk = child; break } |
| n -= sz; |
| } |
| } |
| return chunk.lines[n] |
| } |
| |
| // Get the part of a document between two positions, as an array of |
| // strings. |
| function getBetween(doc, start, end) { |
| var out = [], n = start.line; |
| doc.iter(start.line, end.line + 1, function (line) { |
| var text = line.text; |
| if (n == end.line) { text = text.slice(0, end.ch); } |
| if (n == start.line) { text = text.slice(start.ch); } |
| out.push(text); |
| ++n; |
| }); |
| return out |
| } |
| // Get the lines between from and to, as array of strings. |
| function getLines(doc, from, to) { |
| var out = []; |
| doc.iter(from, to, function (line) { out.push(line.text); }); // iter aborts when callback returns truthy value |
| return out |
| } |
| |
| // Update the height of a line, propagating the height change |
| // upwards to parent nodes. |
| function updateLineHeight(line, height) { |
| var diff = height - line.height; |
| if (diff) { for (var n = line; n; n = n.parent) { n.height += diff; } } |
| } |
| |
| // Given a line object, find its line number by walking up through |
| // its parent links. |
| function lineNo(line) { |
| if (line.parent == null) { return null } |
| var cur = line.parent, no = indexOf(cur.lines, line); |
| for (var chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) { |
| for (var i = 0;; ++i) { |
| if (chunk.children[i] == cur) { break } |
| no += chunk.children[i].chunkSize(); |
| } |
| } |
| return no + cur.first |
| } |
| |
| // Find the line at the given vertical position, using the height |
| // information in the document tree. |
| function lineAtHeight(chunk, h) { |
| var n = chunk.first; |
| outer: do { |
| for (var i$1 = 0; i$1 < chunk.children.length; ++i$1) { |
| var child = chunk.children[i$1], ch = child.height; |
| if (h < ch) { chunk = child; continue outer } |
| h -= ch; |
| n += child.chunkSize(); |
| } |
| return n |
| } while (!chunk.lines) |
| var i = 0; |
| for (; i < chunk.lines.length; ++i) { |
| var line = chunk.lines[i], lh = line.height; |
| if (h < lh) { break } |
| h -= lh; |
| } |
| return n + i |
| } |
| |
| function isLine(doc, l) {return l >= doc.first && l < doc.first + doc.size} |
| |
| function lineNumberFor(options, i) { |
| return String(options.lineNumberFormatter(i + options.firstLineNumber)) |
| } |
| |
| // A Pos instance represents a position within the text. |
| function Pos(line, ch, sticky) { |
| if ( sticky === void 0 ) sticky = null; |
| |
| if (!(this instanceof Pos)) { return new Pos(line, ch, sticky) } |
| this.line = line; |
| this.ch = ch; |
| this.sticky = sticky; |
| } |
| |
| // Compare two positions, return 0 if they are the same, a negative |
| // number when a is less, and a positive number otherwise. |
| function cmp(a, b) { return a.line - b.line || a.ch - b.ch } |
| |
| function equalCursorPos(a, b) { return a.sticky == b.sticky && cmp(a, b) == 0 } |
| |
| function copyPos(x) {return Pos(x.line, x.ch)} |
| function maxPos(a, b) { return cmp(a, b) < 0 ? b : a } |
| function minPos(a, b) { return cmp(a, b) < 0 ? a : b } |
| |
| // Most of the external API clips given positions to make sure they |
| // actually exist within the document. |
| function clipLine(doc, n) {return Math.max(doc.first, Math.min(n, doc.first + doc.size - 1))} |
| function clipPos(doc, pos) { |
| if (pos.line < doc.first) { return Pos(doc.first, 0) } |
| var last = doc.first + doc.size - 1; |
| if (pos.line > last) { return Pos(last, getLine(doc, last).text.length) } |
| return clipToLen(pos, getLine(doc, pos.line).text.length) |
| } |
| function clipToLen(pos, linelen) { |
| var ch = pos.ch; |
| if (ch == null || ch > linelen) { return Pos(pos.line, linelen) } |
| else if (ch < 0) { return Pos(pos.line, 0) } |
| else { return pos } |
| } |
| function clipPosArray(doc, array) { |
| var out = []; |
| for (var i = 0; i < array.length; i++) { out[i] = clipPos(doc, array[i]); } |
| return out |
| } |
| |
| var SavedContext = function(state, lookAhead) { |
| this.state = state; |
| this.lookAhead = lookAhead; |
| }; |
| |
| var Context = function(doc, state, line, lookAhead) { |
| this.state = state; |
| this.doc = doc; |
| this.line = line; |
| this.maxLookAhead = lookAhead || 0; |
| this.baseTokens = null; |
| this.baseTokenPos = 1; |
| }; |
| |
| Context.prototype.lookAhead = function (n) { |
| var line = this.doc.getLine(this.line + n); |
| if (line != null && n > this.maxLookAhead) { this.maxLookAhead = n; } |
| return line |
| }; |
| |
| Context.prototype.baseToken = function (n) { |
| if (!this.baseTokens) { return null } |
| while (this.baseTokens[this.baseTokenPos] <= n) |
| { this.baseTokenPos += 2; } |
| var type = this.baseTokens[this.baseTokenPos + 1]; |
| return {type: type && type.replace(/( |^)overlay .*/, ""), |
| size: this.baseTokens[this.baseTokenPos] - n} |
| }; |
| |
| Context.prototype.nextLine = function () { |
| this.line++; |
| if (this.maxLookAhead > 0) { this.maxLookAhead--; } |
| }; |
| |
| Context.fromSaved = function (doc, saved, line) { |
| if (saved instanceof SavedContext) |
| { return new Context(doc, copyState(doc.mode, saved.state), line, saved.lookAhead) } |
| else |
| { return new Context(doc, copyState(doc.mode, saved), line) } |
| }; |
| |
| Context.prototype.save = function (copy) { |
| var state = copy !== false ? copyState(this.doc.mode, this.state) : this.state; |
| return this.maxLookAhead > 0 ? new SavedContext(state, this.maxLookAhead) : state |
| }; |
| |
| |
| // Compute a style array (an array starting with a mode generation |
| // -- for invalidation -- followed by pairs of end positions and |
| // style strings), which is used to highlight the tokens on the |
| // line. |
| function highlightLine(cm, line, context, forceToEnd) { |
| // A styles array always starts with a number identifying the |
| // mode/overlays that it is based on (for easy invalidation). |
| var st = [cm.state.modeGen], lineClasses = {}; |
| // Compute the base array of styles |
| runMode(cm, line.text, cm.doc.mode, context, function (end, style) { return st.push(end, style); }, |
| lineClasses, forceToEnd); |
| var state = context.state; |
| |
| // Run overlays, adjust style array. |
| var loop = function ( o ) { |
| context.baseTokens = st; |
| var overlay = cm.state.overlays[o], i = 1, at = 0; |
| context.state = true; |
| runMode(cm, line.text, overlay.mode, context, function (end, style) { |
| var start = i; |
| // Ensure there's a token end at the current position, and that i points at it |
| while (at < end) { |
| var i_end = st[i]; |
| if (i_end > end) |
| { st.splice(i, 1, end, st[i+1], i_end); } |
| i += 2; |
| at = Math.min(end, i_end); |
| } |
| if (!style) { return } |
| if (overlay.opaque) { |
| st.splice(start, i - start, end, "overlay " + style); |
| i = start + 2; |
| } else { |
| for (; start < i; start += 2) { |
| var cur = st[start+1]; |
| st[start+1] = (cur ? cur + " " : "") + "overlay " + style; |
| } |
| } |
| }, lineClasses); |
| context.state = state; |
| context.baseTokens = null; |
| context.baseTokenPos = 1; |
| }; |
| |
| for (var o = 0; o < cm.state.overlays.length; ++o) loop( o ); |
| |
| return {styles: st, classes: lineClasses.bgClass || lineClasses.textClass ? lineClasses : null} |
| } |
| |
| function getLineStyles(cm, line, updateFrontier) { |
| if (!line.styles || line.styles[0] != cm.state.modeGen) { |
| var context = getContextBefore(cm, lineNo(line)); |
| var resetState = line.text.length > cm.options.maxHighlightLength && copyState(cm.doc.mode, context.state); |
| var result = highlightLine(cm, line, context); |
| if (resetState) { context.state = resetState; } |
| line.stateAfter = context.save(!resetState); |
| line.styles = result.styles; |
| if (result.classes) { line.styleClasses = result.classes; } |
| else if (line.styleClasses) { line.styleClasses = null; } |
| if (updateFrontier === cm.doc.highlightFrontier) |
| { cm.doc.modeFrontier = Math.max(cm.doc.modeFrontier, ++cm.doc.highlightFrontier); } |
| } |
| return line.styles |
| } |
| |
| function getContextBefore(cm, n, precise) { |
| var doc = cm.doc, display = cm.display; |
| if (!doc.mode.startState) { return new Context(doc, true, n) } |
| var start = findStartLine(cm, n, precise); |
| var saved = start > doc.first && getLine(doc, start - 1).stateAfter; |
| var context = saved ? Context.fromSaved(doc, saved, start) : new Context(doc, startState(doc.mode), start); |
| |
| doc.iter(start, n, function (line) { |
| processLine(cm, line.text, context); |
| var pos = context.line; |
| line.stateAfter = pos == n - 1 || pos % 5 == 0 || pos >= display.viewFrom && pos < display.viewTo ? context.save() : null; |
| context.nextLine(); |
| }); |
| if (precise) { doc.modeFrontier = context.line; } |
| return context |
| } |
| |
| // Lightweight form of highlight -- proceed over this line and |
| // update state, but don't save a style array. Used for lines that |
| // aren't currently visible. |
| function processLine(cm, text, context, startAt) { |
| var mode = cm.doc.mode; |
| var stream = new StringStream(text, cm.options.tabSize, context); |
| stream.start = stream.pos = startAt || 0; |
| if (text == "") { callBlankLine(mode, context.state); } |
| while (!stream.eol()) { |
| readToken(mode, stream, context.state); |
| stream.start = stream.pos; |
| } |
| } |
| |
| function callBlankLine(mode, state) { |
| if (mode.blankLine) { return mode.blankLine(state) } |
| if (!mode.innerMode) { return } |
| var inner = innerMode(mode, state); |
| if (inner.mode.blankLine) { return inner.mode.blankLine(inner.state) } |
| } |
| |
| function readToken(mode, stream, state, inner) { |
| for (var i = 0; i < 10; i++) { |
| if (inner) { inner[0] = innerMode(mode, state).mode; } |
| var style = mode.token(stream, state); |
| if (stream.pos > stream.start) { return style } |
| } |
| throw new Error("Mode " + mode.name + " failed to advance stream.") |
| } |
| |
| var Token = function(stream, type, state) { |
| this.start = stream.start; this.end = stream.pos; |
| this.string = stream.current(); |
| this.type = type || null; |
| this.state = state; |
| }; |
| |
| // Utility for getTokenAt and getLineTokens |
| function takeToken(cm, pos, precise, asArray) { |
| var doc = cm.doc, mode = doc.mode, style; |
| pos = clipPos(doc, pos); |
| var line = getLine(doc, pos.line), context = getContextBefore(cm, pos.line, precise); |
| var stream = new StringStream(line.text, cm.options.tabSize, context), tokens; |
| if (asArray) { tokens = []; } |
| while ((asArray || stream.pos < pos.ch) && !stream.eol()) { |
| stream.start = stream.pos; |
| style = readToken(mode, stream, context.state); |
| if (asArray) { tokens.push(new Token(stream, style, copyState(doc.mode, context.state))); } |
| } |
| return asArray ? tokens : new Token(stream, style, context.state) |
| } |
| |
| function extractLineClasses(type, output) { |
| if (type) { for (;;) { |
| var lineClass = type.match(/(?:^|\s+)line-(background-)?(\S+)/); |
| if (!lineClass) { break } |
| type = type.slice(0, lineClass.index) + type.slice(lineClass.index + lineClass[0].length); |
| var prop = lineClass[1] ? "bgClass" : "textClass"; |
| if (output[prop] == null) |
| { output[prop] = lineClass[2]; } |
| else if (!(new RegExp("(?:^|\s)" + lineClass[2] + "(?:$|\s)")).test(output[prop])) |
| { output[prop] += " " + lineClass[2]; } |
| } } |
| return type |
| } |
| |
| // Run the given mode's parser over a line, calling f for each token. |
| function runMode(cm, text, mode, context, f, lineClasses, forceToEnd) { |
| var flattenSpans = mode.flattenSpans; |
| if (flattenSpans == null) { flattenSpans = cm.options.flattenSpans; } |
| var curStart = 0, curStyle = null; |
| var stream = new StringStream(text, cm.options.tabSize, context), style; |
| var inner = cm.options.addModeClass && [null]; |
| if (text == "") { extractLineClasses(callBlankLine(mode, context.state), lineClasses); } |
| while (!stream.eol()) { |
| if (stream.pos > cm.options.maxHighlightLength) { |
| flattenSpans = false; |
| if (forceToEnd) { processLine(cm, text, context, stream.pos); } |
| stream.pos = text.length; |
| style = null; |
| } else { |
| style = extractLineClasses(readToken(mode, stream, context.state, inner), lineClasses); |
| } |
| if (inner) { |
| var mName = inner[0].name; |
| if (mName) { style = "m-" + (style ? mName + " " + style : mName); } |
| } |
| if (!flattenSpans || curStyle != style) { |
| while (curStart < stream.start) { |
| curStart = Math.min(stream.start, curStart + 5000); |
| f(curStart, curStyle); |
| } |
| curStyle = style; |
| } |
| stream.start = stream.pos; |
| } |
| while (curStart < stream.pos) { |
| // Webkit seems to refuse to render text nodes longer than 57444 |
| // characters, and returns inaccurate measurements in nodes |
| // starting around 5000 chars. |
| var pos = Math.min(stream.pos, curStart + 5000); |
| f(pos, curStyle); |
| curStart = pos; |
| } |
| } |
| |
| // Finds the line to start with when starting a parse. Tries to |
| // find a line with a stateAfter, so that it can start with a |
| // valid state. If that fails, it returns the line with the |
| // smallest indentation, which tends to need the least context to |
| // parse correctly. |
| function findStartLine(cm, n, precise) { |
| var minindent, minline, doc = cm.doc; |
| var lim = precise ? -1 : n - (cm.doc.mode.innerMode ? 1000 : 100); |
| for (var search = n; search > lim; --search) { |
| if (search <= doc.first) { return doc.first } |
| var line = getLine(doc, search - 1), after = line.stateAfter; |
| if (after && (!precise || search + (after instanceof SavedContext ? after.lookAhead : 0) <= doc.modeFrontier)) |
| { return search } |
| var indented = countColumn(line.text, null, cm.options.tabSize); |
| if (minline == null || minindent > indented) { |
| minline = search - 1; |
| minindent = indented; |
| } |
| } |
| return minline |
| } |
| |
| function retreatFrontier(doc, n) { |
| doc.modeFrontier = Math.min(doc.modeFrontier, n); |
| if (doc.highlightFrontier < n - 10) { return } |
| var start = doc.first; |
| for (var line = n - 1; line > start; line--) { |
| var saved = getLine(doc, line).stateAfter; |
| // change is on 3 |
| // state on line 1 looked ahead 2 -- so saw 3 |
| // test 1 + 2 < 3 should cover this |
| if (saved && (!(saved instanceof SavedContext) || line + saved.lookAhead < n)) { |
| start = line + 1; |
| break |
| } |
| } |
| doc.highlightFrontier = Math.min(doc.highlightFrontier, start); |
| } |
| |
| // Optimize some code when these features are not used. |
| var sawReadOnlySpans = false, sawCollapsedSpans = false; |
| |
| function seeReadOnlySpans() { |
| sawReadOnlySpans = true; |
| } |
| |
| function seeCollapsedSpans() { |
| sawCollapsedSpans = true; |
| } |
| |
| // TEXTMARKER SPANS |
| |
| function MarkedSpan(marker, from, to) { |
| this.marker = marker; |
| this.from = from; this.to = to; |
| } |
| |
| // Search an array of spans for a span matching the given marker. |
| function getMarkedSpanFor(spans, marker) { |
| if (spans) { for (var i = 0; i < spans.length; ++i) { |
| var span = spans[i]; |
| if (span.marker == marker) { return span } |
| } } |
| } |
| // Remove a span from an array, returning undefined if no spans are |
| // left (we don't store arrays for lines without spans). |
| function removeMarkedSpan(spans, span) { |
| var r; |
| for (var i = 0; i < spans.length; ++i) |
| { if (spans[i] != span) { (r || (r = [])).push(spans[i]); } } |
| return r |
| } |
| // Add a span to a line. |
| function addMarkedSpan(line, span) { |
| line.markedSpans = line.markedSpans ? line.markedSpans.concat([span]) : [span]; |
| span.marker.attachLine(line); |
| } |
| |
| // Used for the algorithm that adjusts markers for a change in the |
| // document. These functions cut an array of spans at a given |
| // character position, returning an array of remaining chunks (or |
| // undefined if nothing remains). |
| function markedSpansBefore(old, startCh, isInsert) { |
| var nw; |
| if (old) { for (var i = 0; i < old.length; ++i) { |
| var span = old[i], marker = span.marker; |
| var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= startCh : span.from < startCh); |
| if (startsBefore || span.from == startCh && marker.type == "bookmark" && (!isInsert || !span.marker.insertLeft)) { |
| var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= startCh : span.to > startCh) |
| ;(nw || (nw = [])).push(new MarkedSpan(marker, span.from, endsAfter ? null : span.to)); |
| } |
| } } |
| return nw |
| } |
| function markedSpansAfter(old, endCh, isInsert) { |
| var nw; |
| if (old) { for (var i = 0; i < old.length; ++i) { |
| var span = old[i], marker = span.marker; |
| var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= endCh : span.to > endCh); |
| if (endsAfter || span.from == endCh && marker.type == "bookmark" && (!isInsert || span.marker.insertLeft)) { |
| var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= endCh : span.from < endCh) |
| ;(nw || (nw = [])).push(new MarkedSpan(marker, startsBefore ? null : span.from - endCh, |
| span.to == null ? null : span.to - endCh)); |
| } |
| } } |
| return nw |
| } |
| |
| // Given a change object, compute the new set of marker spans that |
| // cover the line in which the change took place. Removes spans |
| // entirely within the change, reconnects spans belonging to the |
| // same marker that appear on both sides of the change, and cuts off |
| // spans partially within the change. Returns an array of span |
| // arrays with one element for each line in (after) the change. |
| function stretchSpansOverChange(doc, change) { |
| if (change.full) { return null } |
| var oldFirst = isLine(doc, change.from.line) && getLine(doc, change.from.line).markedSpans; |
| var oldLast = isLine(doc, change.to.line) && getLine(doc, change.to.line).markedSpans; |
| if (!oldFirst && !oldLast) { return null } |
| |
| var startCh = change.from.ch, endCh = change.to.ch, isInsert = cmp(change.from, change.to) == 0; |
| // Get the spans that 'stick out' on both sides |
| var first = markedSpansBefore(oldFirst, startCh, isInsert); |
| var last = markedSpansAfter(oldLast, endCh, isInsert); |
| |
| // Next, merge those two ends |
| var sameLine = change.text.length == 1, offset = lst(change.text).length + (sameLine ? startCh : 0); |
| if (first) { |
| // Fix up .to properties of first |
| for (var i = 0; i < first.length; ++i) { |
| var span = first[i]; |
| if (span.to == null) { |
| var found = getMarkedSpanFor(last, span.marker); |
| if (!found) { span.to = startCh; } |
| else if (sameLine) { span.to = found.to == null ? null : found.to + offset; } |
| } |
| } |
| } |
| if (last) { |
| // Fix up .from in last (or move them into first in case of sameLine) |
| for (var i$1 = 0; i$1 < last.length; ++i$1) { |
| var span$1 = last[i$1]; |
| if (span$1.to != null) { span$1.to += offset; } |
| if (span$1.from == null) { |
| var found$1 = getMarkedSpanFor(first, span$1.marker); |
| if (!found$1) { |
| span$1.from = offset; |
| if (sameLine) { (first || (first = [])).push(span$1); } |
| } |
| } else { |
| span$1.from += offset; |
| if (sameLine) { (first || (first = [])).push(span$1); } |
| } |
| } |
| } |
| // Make sure we didn't create any zero-length spans |
| if (first) { first = clearEmptySpans(first); } |
| if (last && last != first) { last = clearEmptySpans(last); } |
| |
| var newMarkers = [first]; |
| if (!sameLine) { |
| // Fill gap with whole-line-spans |
| var gap = change.text.length - 2, gapMarkers; |
| if (gap > 0 && first) |
| { for (var i$2 = 0; i$2 < first.length; ++i$2) |
| { if (first[i$2].to == null) |
| { (gapMarkers || (gapMarkers = [])).push(new MarkedSpan(first[i$2].marker, null, null)); } } } |
| for (var i$3 = 0; i$3 < gap; ++i$3) |
| { newMarkers.push(gapMarkers); } |
| newMarkers.push(last); |
| } |
| return newMarkers |
| } |
| |
| // Remove spans that are empty and don't have a clearWhenEmpty |
| // option of false. |
| function clearEmptySpans(spans) { |
| for (var i = 0; i < spans.length; ++i) { |
| var span = spans[i]; |
| if (span.from != null && span.from == span.to && span.marker.clearWhenEmpty !== false) |
| { spans.splice(i--, 1); } |
| } |
| if (!spans.length) { return null } |
| return spans |
| } |
| |
| // Used to 'clip' out readOnly ranges when making a change. |
| function removeReadOnlyRanges(doc, from, to) { |
| var markers = null; |
| doc.iter(from.line, to.line + 1, function (line) { |
| if (line.markedSpans) { for (var i = 0; i < line.markedSpans.length; ++i) { |
| var mark = line.markedSpans[i].marker; |
| if (mark.readOnly && (!markers || indexOf(markers, mark) == -1)) |
| { (markers || (markers = [])).push(mark); } |
| } } |
| }); |
| if (!markers) { return null } |
| var parts = [{from: from, to: to}]; |
| for (var i = 0; i < markers.length; ++i) { |
| var mk = markers[i], m = mk.find(0); |
| for (var j = 0; j < parts.length; ++j) { |
| var p = parts[j]; |
| if (cmp(p.to, m.from) < 0 || cmp(p.from, m.to) > 0) { continue } |
| var newParts = [j, 1], dfrom = cmp(p.from, m.from), dto = cmp(p.to, m.to); |
| if (dfrom < 0 || !mk.inclusiveLeft && !dfrom) |
| { newParts.push({from: p.from, to: m.from}); } |
| if (dto > 0 || !mk.inclusiveRight && !dto) |
| { newParts.push({from: m.to, to: p.to}); } |
| parts.splice.apply(parts, newParts); |
| j += newParts.length - 3; |
| } |
| } |
| return parts |
| } |
| |
| // Connect or disconnect spans from a line. |
| function detachMarkedSpans(line) { |
| var spans = line.markedSpans; |
| if (!spans) { return } |
| for (var i = 0; i < spans.length; ++i) |
| { spans[i].marker.detachLine(line); } |
| line.markedSpans = null; |
| } |
| function attachMarkedSpans(line, spans) { |
| if (!spans) { return } |
| for (var i = 0; i < spans.length; ++i) |
| { spans[i].marker.attachLine(line); } |
| line.markedSpans = spans; |
| } |
| |
| // Helpers used when computing which overlapping collapsed span |
| // counts as the larger one. |
| function extraLeft(marker) { return marker.inclusiveLeft ? -1 : 0 } |
| function extraRight(marker) { return marker.inclusiveRight ? 1 : 0 } |
| |
| // Returns a number indicating which of two overlapping collapsed |
| // spans is larger (and thus includes the other). Falls back to |
| // comparing ids when the spans cover exactly the same range. |
| function compareCollapsedMarkers(a, b) { |
| var lenDiff = a.lines.length - b.lines.length; |
| if (lenDiff != 0) { return lenDiff } |
| var aPos = a.find(), bPos = b.find(); |
| var fromCmp = cmp(aPos.from, bPos.from) || extraLeft(a) - extraLeft(b); |
| if (fromCmp) { return -fromCmp } |
| var toCmp = cmp(aPos.to, bPos.to) || extraRight(a) - extraRight(b); |
| if (toCmp) { return toCmp } |
| return b.id - a.id |
| } |
| |
| // Find out whether a line ends or starts in a collapsed span. If |
| // so, return the marker for that span. |
| function collapsedSpanAtSide(line, start) { |
| var sps = sawCollapsedSpans && line.markedSpans, found; |
| if (sps) { for (var sp = (void 0), i = 0; i < sps.length; ++i) { |
| sp = sps[i]; |
| if (sp.marker.collapsed && (start ? sp.from : sp.to) == null && |
| (!found || compareCollapsedMarkers(found, sp.marker) < 0)) |
| { found = sp.marker; } |
| } } |
| return found |
| } |
| function collapsedSpanAtStart(line) { return collapsedSpanAtSide(line, true) } |
| function collapsedSpanAtEnd(line) { return collapsedSpanAtSide(line, false) } |
| |
| function collapsedSpanAround(line, ch) { |
| var sps = sawCollapsedSpans && line.markedSpans, found; |
| if (sps) { for (var i = 0; i < sps.length; ++i) { |
| var sp = sps[i]; |
| if (sp.marker.collapsed && (sp.from == null || sp.from < ch) && (sp.to == null || sp.to > ch) && |
| (!found || compareCollapsedMarkers(found, sp.marker) < 0)) { found = sp.marker; } |
| } } |
| return found |
| } |
| |
| // Test whether there exists a collapsed span that partially |
| // overlaps (covers the start or end, but not both) of a new span. |
| // Such overlap is not allowed. |
| function conflictingCollapsedRange(doc, lineNo$$1, from, to, marker) { |
| var line = getLine(doc, lineNo$$1); |
| var sps = sawCollapsedSpans && line.markedSpans; |
| if (sps) { for (var i = 0; i < sps.length; ++i) { |
| var sp = sps[i]; |
| if (!sp.marker.collapsed) { continue } |
| var found = sp.marker.find(0); |
| var fromCmp = cmp(found.from, from) || extraLeft(sp.marker) - extraLeft(marker); |
| var toCmp = cmp(found.to, to) || extraRight(sp.marker) - extraRight(marker); |
| if (fromCmp >= 0 && toCmp <= 0 || fromCmp <= 0 && toCmp >= 0) { continue } |
| if (fromCmp <= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.to, from) >= 0 : cmp(found.to, from) > 0) || |
| fromCmp >= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.from, to) <= 0 : cmp(found.from, to) < 0)) |
| { return true } |
| } } |
| } |
| |
| // A visual line is a line as drawn on the screen. Folding, for |
| // example, can cause multiple logical lines to appear on the same |
| // visual line. This finds the start of the visual line that the |
| // given line is part of (usually that is the line itself). |
| function visualLine(line) { |
| var merged; |
| while (merged = collapsedSpanAtStart(line)) |
| { line = merged.find(-1, true).line; } |
| return line |
| } |
| |
| function visualLineEnd(line) { |
| var merged; |
| while (merged = collapsedSpanAtEnd(line)) |
| { line = merged.find(1, true).line; } |
| return line |
| } |
| |
| // Returns an array of logical lines that continue the visual line |
| // started by the argument, or undefined if there are no such lines. |
| function visualLineContinued(line) { |
| var merged, lines; |
| while (merged = collapsedSpanAtEnd(line)) { |
| line = merged.find(1, true).line |
| ;(lines || (lines = [])).push(line); |
| } |
| return lines |
| } |
| |
| // Get the line number of the start of the visual line that the |
| // given line number is part of. |
| function visualLineNo(doc, lineN) { |
| var line = getLine(doc, lineN), vis = visualLine(line); |
| if (line == vis) { return lineN } |
| return lineNo(vis) |
| } |
| |
| // Get the line number of the start of the next visual line after |
| // the given line. |
| function visualLineEndNo(doc, lineN) { |
| if (lineN > doc.lastLine()) { return lineN } |
| var line = getLine(doc, lineN), merged; |
| if (!lineIsHidden(doc, line)) { return lineN } |
| while (merged = collapsedSpanAtEnd(line)) |
| { line = merged.find(1, true).line; } |
| return lineNo(line) + 1 |
| } |
| |
| // Compute whether a line is hidden. Lines count as hidden when they |
| // are part of a visual line that starts with another line, or when |
| // they are entirely covered by collapsed, non-widget span. |
| function lineIsHidden(doc, line) { |
| var sps = sawCollapsedSpans && line.markedSpans; |
| if (sps) { for (var sp = (void 0), i = 0; i < sps.length; ++i) { |
| sp = sps[i]; |
| if (!sp.marker.collapsed) { continue } |
| if (sp.from == null) { return true } |
| if (sp.marker.widgetNode) { continue } |
| if (sp.from == 0 && sp.marker.inclusiveLeft && lineIsHiddenInner(doc, line, sp)) |
| { return true } |
| } } |
| } |
| function lineIsHiddenInner(doc, line, span) { |
| if (span.to == null) { |
| var end = span.marker.find(1, true); |
| return lineIsHiddenInner(doc, end.line, getMarkedSpanFor(end.line.markedSpans, span.marker)) |
| } |
| if (span.marker.inclusiveRight && span.to == line.text.length) |
| { return true } |
| for (var sp = (void 0), i = 0; i < line.markedSpans.length; ++i) { |
| sp = line.markedSpans[i]; |
| if (sp.marker.collapsed && !sp.marker.widgetNode && sp.from == span.to && |
| (sp.to == null || sp.to != span.from) && |
| (sp.marker.inclusiveLeft || span.marker.inclusiveRight) && |
| lineIsHiddenInner(doc, line, sp)) { return true } |
| } |
| } |
| |
| // Find the height above the given line. |
| function heightAtLine(lineObj) { |
| lineObj = visualLine(lineObj); |
| |
| var h = 0, chunk = lineObj.parent; |
| for (var i = 0; i < chunk.lines.length; ++i) { |
| var line = chunk.lines[i]; |
| if (line == lineObj) { break } |
| else { h += line.height; } |
| } |
| for (var p = chunk.parent; p; chunk = p, p = chunk.parent) { |
| for (var i$1 = 0; i$1 < p.children.length; ++i$1) { |
| var cur = p.children[i$1]; |
| if (cur == chunk) { break } |
| else { h += cur.height; } |
| } |
| } |
| return h |
| } |
| |
| // Compute the character length of a line, taking into account |
| // collapsed ranges (see markText) that might hide parts, and join |
| // other lines onto it. |
| function lineLength(line) { |
| if (line.height == 0) { return 0 } |
| var len = line.text.length, merged, cur = line; |
| while (merged = collapsedSpanAtStart(cur)) { |
| var found = merged.find(0, true); |
| cur = found.from.line; |
| len += found.from.ch - found.to.ch; |
| } |
| cur = line; |
| while (merged = collapsedSpanAtEnd(cur)) { |
| var found$1 = merged.find(0, true); |
| len -= cur.text.length - found$1.from.ch; |
| cur = found$1.to.line; |
| len += cur.text.length - found$1.to.ch; |
| } |
| return len |
| } |
| |
| // Find the longest line in the document. |
| function findMaxLine(cm) { |
| var d = cm.display, doc = cm.doc; |
| d.maxLine = getLine(doc, doc.first); |
| d.maxLineLength = lineLength(d.maxLine); |
| d.maxLineChanged = true; |
| doc.iter(function (line) { |
| var len = lineLength(line); |
| if (len > d.maxLineLength) { |
| d.maxLineLength = len; |
| d.maxLine = line; |
| } |
| }); |
| } |
| |
| // LINE DATA STRUCTURE |
| |
| // Line objects. These hold state related to a line, including |
| // highlighting info (the styles array). |
| var Line = function(text, markedSpans, estimateHeight) { |
| this.text = text; |
| attachMarkedSpans(this, markedSpans); |
| this.height = estimateHeight ? estimateHeight(this) : 1; |
| }; |
| |
| Line.prototype.lineNo = function () { return lineNo(this) }; |
| eventMixin(Line); |
| |
| // Change the content (text, markers) of a line. Automatically |
| // invalidates cached information and tries to re-estimate the |
| // line's height. |
| function updateLine(line, text, markedSpans, estimateHeight) { |
| line.text = text; |
| if (line.stateAfter) { line.stateAfter = null; } |
| if (line.styles) { line.styles = null; } |
| if (line.order != null) { line.order = null; } |
| detachMarkedSpans(line); |
| attachMarkedSpans(line, markedSpans); |
| var estHeight = estimateHeight ? estimateHeight(line) : 1; |
| if (estHeight != line.height) { updateLineHeight(line, estHeight); } |
| } |
| |
| // Detach a line from the document tree and its markers. |
| function cleanUpLine(line) { |
| line.parent = null; |
| detachMarkedSpans(line); |
| } |
| |
| // Convert a style as returned by a mode (either null, or a string |
| // containing one or more styles) to a CSS style. This is cached, |
| // and also looks for line-wide styles. |
| var styleToClassCache = {}, styleToClassCacheWithMode = {}; |
| function interpretTokenStyle(style, options) { |
| if (!style || /^\s*$/.test(style)) { return null } |
| var cache = options.addModeClass ? styleToClassCacheWithMode : styleToClassCache; |
| return cache[style] || |
| (cache[style] = style.replace(/\S+/g, "cm-$&")) |
| } |
| |
| // Render the DOM representation of the text of a line. Also builds |
| // up a 'line map', which points at the DOM nodes that represent |
| // specific stretches of text, and is used by the measuring code. |
| // The returned object contains the DOM node, this map, and |
| // information about line-wide styles that were set by the mode. |
| function buildLineContent(cm, lineView) { |
| // The padding-right forces the element to have a 'border', which |
| // is needed on Webkit to be able to get line-level bounding |
| // rectangles for it (in measureChar). |
| var content = eltP("span", null, null, webkit ? "padding-right: .1px" : null); |
| var builder = {pre: eltP("pre", [content], "CodeMirror-line"), content: content, |
| col: 0, pos: 0, cm: cm, |
| trailingSpace: false, |
| splitSpaces: cm.getOption("lineWrapping")}; |
| lineView.measure = {}; |
| |
| // Iterate over the logical lines that make up this visual line. |
| for (var i = 0; i <= (lineView.rest ? lineView.rest.length : 0); i++) { |
| var line = i ? lineView.rest[i - 1] : lineView.line, order = (void 0); |
| builder.pos = 0; |
| builder.addToken = buildToken; |
| // Optionally wire in some hacks into the token-rendering |
| // algorithm, to deal with browser quirks. |
| if (hasBadBidiRects(cm.display.measure) && (order = getOrder(line, cm.doc.direction))) |
| { builder.addToken = buildTokenBadBidi(builder.addToken, order); } |
| builder.map = []; |
| var allowFrontierUpdate = lineView != cm.display.externalMeasured && lineNo(line); |
| insertLineContent(line, builder, getLineStyles(cm, line, allowFrontierUpdate)); |
| if (line.styleClasses) { |
| if (line.styleClasses.bgClass) |
| { builder.bgClass = joinClasses(line.styleClasses.bgClass, builder.bgClass || ""); } |
| if (line.styleClasses.textClass) |
| { builder.textClass = joinClasses(line.styleClasses.textClass, builder.textClass || ""); } |
| } |
| |
| // Ensure at least a single node is present, for measuring. |
| if (builder.map.length == 0) |
| { builder.map.push(0, 0, builder.content.appendChild(zeroWidthElement(cm.display.measure))); } |
| |
| // Store the map and a cache object for the current logical line |
| if (i == 0) { |
| lineView.measure.map = builder.map; |
| lineView.measure.cache = {}; |
| } else { |
| (lineView.measure.maps || (lineView.measure.maps = [])).push(builder.map) |
| ;(lineView.measure.caches || (lineView.measure.caches = [])).push({}); |
| } |
| } |
| |
| // See issue #2901 |
| if (webkit) { |
| var last = builder.content.lastChild; |
| if (/\bcm-tab\b/.test(last.className) || (last.querySelector && last.querySelector(".cm-tab"))) |
| { builder.content.className = "cm-tab-wrap-hack"; } |
| } |
| |
| signal(cm, "renderLine", cm, lineView.line, builder.pre); |
| if (builder.pre.className) |
| { builder.textClass = joinClasses(builder.pre.className, builder.textClass || ""); } |
| |
| return builder |
| } |
| |
| function defaultSpecialCharPlaceholder(ch) { |
| var token = elt("span", "\u2022", "cm-invalidchar"); |
| token.title = "\\u" + ch.charCodeAt(0).toString(16); |
| token.setAttribute("aria-label", token.title); |
| return token |
| } |
| |
| // Build up the DOM representation for a single token, and add it to |
| // the line map. Takes care to render special characters separately. |
| function buildToken(builder, text, style, startStyle, endStyle, css, attributes) { |
| if (!text) { return } |
| var displayText = builder.splitSpaces ? splitSpaces(text, builder.trailingSpace) : text; |
| var special = builder.cm.state.specialChars, mustWrap = false; |
| var content; |
| if (!special.test(text)) { |
| builder.col += text.length; |
| content = document.createTextNode(displayText); |
| builder.map.push(builder.pos, builder.pos + text.length, content); |
| if (ie && ie_version < 9) { mustWrap = true; } |
| builder.pos += text.length; |
| } else { |
| content = document.createDocumentFragment(); |
| var pos = 0; |
| while (true) { |
| special.lastIndex = pos; |
| var m = special.exec(text); |
| var skipped = m ? m.index - pos : text.length - pos; |
| if (skipped) { |
| var txt = document.createTextNode(displayText.slice(pos, pos + skipped)); |
| if (ie && ie_version < 9) { content.appendChild(elt("span", [txt])); } |
| else { content.appendChild(txt); } |
| builder.map.push(builder.pos, builder.pos + skipped, txt); |
| builder.col += skipped; |
| builder.pos += skipped; |
| } |
| if (!m) { break } |
| pos += skipped + 1; |
| var txt$1 = (void 0); |
| if (m[0] == "\t") { |
| var tabSize = builder.cm.options.tabSize, tabWidth = tabSize - builder.col % tabSize; |
| txt$1 = content.appendChild(elt("span", spaceStr(tabWidth), "cm-tab")); |
| txt$1.setAttribute("role", "presentation"); |
| txt$1.setAttribute("cm-text", "\t"); |
| builder.col += tabWidth; |
| } else if (m[0] == "\r" || m[0] == "\n") { |
| txt$1 = content.appendChild(elt("span", m[0] == "\r" ? "\u240d" : "\u2424", "cm-invalidchar")); |
| txt$1.setAttribute("cm-text", m[0]); |
| builder.col += 1; |
| } else { |
| txt$1 = builder.cm.options.specialCharPlaceholder(m[0]); |
| txt$1.setAttribute("cm-text", m[0]); |
| if (ie && ie_version < 9) { content.appendChild(elt("span", [txt$1])); } |
| else { content.appendChild(txt$1); } |
| builder.col += 1; |
| } |
| builder.map.push(builder.pos, builder.pos + 1, txt$1); |
| builder.pos++; |
| } |
| } |
| builder.trailingSpace = displayText.charCodeAt(text.length - 1) == 32; |
| if (style || startStyle || endStyle || mustWrap || css) { |
| var fullStyle = style || ""; |
| if (startStyle) { fullStyle += startStyle; } |
| if (endStyle) { fullStyle += endStyle; } |
| var token = elt("span", [content], fullStyle, css); |
| if (attributes) { |
| for (var attr in attributes) { if (attributes.hasOwnProperty(attr) && attr != "style" && attr != "class") |
| { token.setAttribute(attr, attributes[attr]); } } |
| } |
| return builder.content.appendChild(token) |
| } |
| builder.content.appendChild(content); |
| } |
| |
| // Change some spaces to NBSP to prevent the browser from collapsing |
| // trailing spaces at the end of a line when rendering text (issue #1362). |
| function splitSpaces(text, trailingBefore) { |
| if (text.length > 1 && !/ /.test(text)) { return text } |
| var spaceBefore = trailingBefore, result = ""; |
| for (var i = 0; i < text.length; i++) { |
| var ch = text.charAt(i); |
| if (ch == " " && spaceBefore && (i == text.length - 1 || text.charCodeAt(i + 1) == 32)) |
| { ch = "\u00a0"; } |
| result += ch; |
| spaceBefore = ch == " "; |
| } |
| return result |
| } |
| |
| // Work around nonsense dimensions being reported for stretches of |
| // right-to-left text. |
| function buildTokenBadBidi(inner, order) { |
| return function (builder, text, style, startStyle, endStyle, css, attributes) { |
| style = style ? style + " cm-force-border" : "cm-force-border"; |
| var start = builder.pos, end = start + text.length; |
| for (;;) { |
| // Find the part that overlaps with the start of this text |
| var part = (void 0); |
| for (var i = 0; i < order.length; i++) { |
| part = order[i]; |
| if (part.to > start && part.from <= start) { break } |
| } |
| if (part.to >= end) { return inner(builder, text, style, startStyle, endStyle, css, attributes) } |
| inner(builder, text.slice(0, part.to - start), style, startStyle, null, css, attributes); |
| startStyle = null; |
| text = text.slice(part.to - start); |
| start = part.to; |
| } |
| } |
| } |
| |
| function buildCollapsedSpan(builder, size, marker, ignoreWidget) { |
| var widget = !ignoreWidget && marker.widgetNode; |
| if (widget) { builder.map.push(builder.pos, builder.pos + size, widget); } |
| if (!ignoreWidget && builder.cm.display.input.needsContentAttribute) { |
| if (!widget) |
| { widget = builder.content.appendChild(document.createElement("span")); } |
| widget.setAttribute("cm-marker", marker.id); |
| } |
| if (widget) { |
| builder.cm.display.input.setUneditable(widget); |
| builder.content.appendChild(widget); |
| } |
| builder.pos += size; |
| builder.trailingSpace = false; |
| } |
| |
| // Outputs a number of spans to make up a line, taking highlighting |
| // and marked text into account. |
| function insertLineContent(line, builder, styles) { |
| var spans = line.markedSpans, allText = line.text, at = 0; |
| if (!spans) { |
| for (var i$1 = 1; i$1 < styles.length; i$1+=2) |
| { builder.addToken(builder, allText.slice(at, at = styles[i$1]), interpretTokenStyle(styles[i$1+1], builder.cm.options)); } |
| return |
| } |
| |
| var len = allText.length, pos = 0, i = 1, text = "", style, css; |
| var nextChange = 0, spanStyle, spanEndStyle, spanStartStyle, collapsed, attributes; |
| for (;;) { |
| if (nextChange == pos) { // Update current marker set |
| spanStyle = spanEndStyle = spanStartStyle = css = ""; |
| attributes = null; |
| collapsed = null; nextChange = Infinity; |
| var foundBookmarks = [], endStyles = (void 0); |
| for (var j = 0; j < spans.length; ++j) { |
| var sp = spans[j], m = sp.marker; |
| if (m.type == "bookmark" && sp.from == pos && m.widgetNode) { |
| foundBookmarks.push(m); |
| } else if (sp.from <= pos && (sp.to == null || sp.to > pos || m.collapsed && sp.to == pos && sp.from == pos)) { |
| if (sp.to != null && sp.to != pos && nextChange > sp.to) { |
| nextChange = sp.to; |
| spanEndStyle = ""; |
| } |
| if (m.className) { spanStyle += " " + m.className; } |
| if (m.css) { css = (css ? css + ";" : "") + m.css; } |
| if (m.startStyle && sp.from == pos) { spanStartStyle += " " + m.startStyle; } |
| if (m.endStyle && sp.to == nextChange) { (endStyles || (endStyles = [])).push(m.endStyle, sp.to); } |
| // support for the old title property |
| // https://github.com/codemirror/CodeMirror/pull/5673 |
| if (m.title) { (attributes || (attributes = {})).title = m.title; } |
| if (m.attributes) { |
| for (var attr in m.attributes) |
| { (attributes || (attributes = {}))[attr] = m.attributes[attr]; } |
| } |
| if (m.collapsed && (!collapsed || compareCollapsedMarkers(collapsed.marker, m) < 0)) |
| { collapsed = sp; } |
| } else if (sp.from > pos && nextChange > sp.from) { |
| nextChange = sp.from; |
| } |
| } |
| if (endStyles) { for (var j$1 = 0; j$1 < endStyles.length; j$1 += 2) |
| { if (endStyles[j$1 + 1] == nextChange) { spanEndStyle += " " + endStyles[j$1]; } } } |
| |
| if (!collapsed || collapsed.from == pos) { for (var j$2 = 0; j$2 < foundBookmarks.length; ++j$2) |
| { buildCollapsedSpan(builder, 0, foundBookmarks[j$2]); } } |
| if (collapsed && (collapsed.from || 0) == pos) { |
| buildCollapsedSpan(builder, (collapsed.to == null ? len + 1 : collapsed.to) - pos, |
| collapsed.marker, collapsed.from == null); |
| if (collapsed.to == null) { return } |
| if (collapsed.to == pos) { collapsed = false; } |
| } |
| } |
| if (pos >= len) { break } |
| |
| var upto = Math.min(len, nextChange); |
| while (true) { |
| if (text) { |
| var end = pos + text.length; |
| if (!collapsed) { |
| var tokenText = end > upto ? text.slice(0, upto - pos) : text; |
| builder.addToken(builder, tokenText, style ? style + spanStyle : spanStyle, |
| spanStartStyle, pos + tokenText.length == nextChange ? spanEndStyle : "", css, attributes); |
| } |
| if (end >= upto) {text = text.slice(upto - pos); pos = upto; break} |
| pos = end; |
| spanStartStyle = ""; |
| } |
| text = allText.slice(at, at = styles[i++]); |
| style = interpretTokenStyle(styles[i++], builder.cm.options); |
| } |
| } |
| } |
| |
| |
| // These objects are used to represent the visible (currently drawn) |
| // part of the document. A LineView may correspond to multiple |
| // logical lines, if those are connected by collapsed ranges. |
| function LineView(doc, line, lineN) { |
| // The starting line |
| this.line = line; |
| // Continuing lines, if any |
| this.rest = visualLineContinued(line); |
| // Number of logical lines in this visual line |
| this.size = this.rest ? lineNo(lst(this.rest)) - lineN + 1 : 1; |
| this.node = this.text = null; |
| this.hidden = lineIsHidden(doc, line); |
| } |
| |
| // Create a range of LineView objects for the given lines. |
| function buildViewArray(cm, from, to) { |
| var array = [], nextPos; |
| for (var pos = from; pos < to; pos = nextPos) { |
| var view = new LineView(cm.doc, getLine(cm.doc, pos), pos); |
| nextPos = pos + view.size; |
| array.push(view); |
| } |
| return array |
| } |
| |
| var operationGroup = null; |
| |
| function pushOperation(op) { |
| if (operationGroup) { |
| operationGroup.ops.push(op); |
| } else { |
| op.ownsGroup = operationGroup = { |
| ops: [op], |
| delayedCallbacks: [] |
| }; |
| } |
| } |
| |
| function fireCallbacksForOps(group) { |
| // Calls delayed callbacks and cursorActivity handlers until no |
| // new ones appear |
| var callbacks = group.delayedCallbacks, i = 0; |
| do { |
| for (; i < callbacks.length; i++) |
| { callbacks[i].call(null); } |
| for (var j = 0; j < group.ops.length; j++) { |
| var op = group.ops[j]; |
| if (op.cursorActivityHandlers) |
| { while (op.cursorActivityCalled < op.cursorActivityHandlers.length) |
| { op.cursorActivityHandlers[op.cursorActivityCalled++].call(null, op.cm); } } |
| } |
| } while (i < callbacks.length) |
| } |
| |
| function finishOperation(op, endCb) { |
| var group = op.ownsGroup; |
| if (!group) { return } |
| |
| try { fireCallbacksForOps(group); } |
| finally { |
| operationGroup = null; |
| endCb(group); |
| } |
| } |
| |
| var orphanDelayedCallbacks = null; |
| |
| // Often, we want to signal events at a point where we are in the |
| // middle of some work, but don't want the handler to start calling |
| // other methods on the editor, which might be in an inconsistent |
| // state or simply not expect any other events to happen. |
| // signalLater looks whether there are any handlers, and schedules |
| // them to be executed when the last operation ends, or, if no |
| // operation is active, when a timeout fires. |
| function signalLater(emitter, type /*, values...*/) { |
| var arr = getHandlers(emitter, type); |
| if (!arr.length) { return } |
| var args = Array.prototype.slice.call(arguments, 2), list; |
| if (operationGroup) { |
| list = operationGroup.delayedCallbacks; |
| } else if (orphanDelayedCallbacks) { |
| list = orphanDelayedCallbacks; |
| } else { |
| list = orphanDelayedCallbacks = []; |
| setTimeout(fireOrphanDelayed, 0); |
| } |
| var loop = function ( i ) { |
| list.push(function () { return arr[i].apply(null, args); }); |
| }; |
| |
| for (var i = 0; i < arr.length; ++i) |
| loop( i ); |
| } |
| |
| function fireOrphanDelayed() { |
| var delayed = orphanDelayedCallbacks; |
| orphanDelayedCallbacks = null; |
| for (var i = 0; i < delayed.length; ++i) { delayed[i](); } |
| } |
| |
| // When an aspect of a line changes, a string is added to |
| // lineView.changes. This updates the relevant part of the line's |
| // DOM structure. |
| function updateLineForChanges(cm, lineView, lineN, dims) { |
| for (var j = 0; j < lineView.changes.length; j++) { |
| var type = lineView.changes[j]; |
| if (type == "text") { updateLineText(cm, lineView); } |
| else if (type == "gutter") { updateLineGutter(cm, lineView, lineN, dims); } |
| else if (type == "class") { updateLineClasses(cm, lineView); } |
| else if (type == "widget") { updateLineWidgets(cm, lineView, dims); } |
| } |
| lineView.changes = null; |
| } |
| |
| // Lines with gutter elements, widgets or a background class need to |
| // be wrapped, and have the extra elements added to the wrapper div |
| function ensureLineWrapped(lineView) { |
| if (lineView.node == lineView.text) { |
| lineView.node = elt("div", null, null, "position: relative"); |
| if (lineView.text.parentNode) |
| { lineView.text.parentNode.replaceChild(lineView.node, lineView.text); } |
| lineView.node.appendChild(lineView.text); |
| if (ie && ie_version < 8) { lineView.node.style.zIndex = 2; } |
| } |
| return lineView.node |
| } |
| |
| function updateLineBackground(cm, lineView) { |
| var cls = lineView.bgClass ? lineView.bgClass + " " + (lineView.line.bgClass || "") : lineView.line.bgClass; |
| if (cls) { cls += " CodeMirror-linebackground"; } |
| if (lineView.background) { |
| if (cls) { lineView.background.className = cls; } |
| else { lineView.background.parentNode.removeChild(lineView.background); lineView.background = null; } |
| } else if (cls) { |
| var wrap = ensureLineWrapped(lineView); |
| lineView.background = wrap.insertBefore(elt("div", null, cls), wrap.firstChild); |
| cm.display.input.setUneditable(lineView.background); |
| } |
| } |
| |
| // Wrapper around buildLineContent which will reuse the structure |
| // in display.externalMeasured when possible. |
| function getLineContent(cm, lineView) { |
| var ext = cm.display.externalMeasured; |
| if (ext && ext.line == lineView.line) { |
| cm.display.externalMeasured = null; |
| lineView.measure = ext.measure; |
| return ext.built |
| } |
| return buildLineContent(cm, lineView) |
| } |
| |
| // Redraw the line's text. Interacts with the background and text |
| // classes because the mode may output tokens that influence these |
| // classes. |
| function updateLineText(cm, lineView) { |
| var cls = lineView.text.className; |
| var built = getLineContent(cm, lineView); |
| if (lineView.text == lineView.node) { lineView.node = built.pre; } |
| lineView.text.parentNode.replaceChild(built.pre, lineView.text); |
| lineView.text = built.pre; |
| if (built.bgClass != lineView.bgClass || built.textClass != lineView.textClass) { |
| lineView.bgClass = built.bgClass; |
| lineView.textClass = built.textClass; |
| updateLineClasses(cm, lineView); |
| } else if (cls) { |
| lineView.text.className = cls; |
| } |
| } |
| |
| function updateLineClasses(cm, lineView) { |
| updateLineBackground(cm, lineView); |
| if (lineView.line.wrapClass) |
| { ensureLineWrapped(lineView).className = lineView.line.wrapClass; } |
| else if (lineView.node != lineView.text) |
| { lineView.node.className = ""; } |
| var textClass = lineView.textClass ? lineView.textClass + " " + (lineView.line.textClass || "") : lineView.line.textClass; |
| lineView.text.className = textClass || ""; |
| } |
| |
| function updateLineGutter(cm, lineView, lineN, dims) { |
| if (lineView.gutter) { |
| lineView.node.removeChild(lineView.gutter); |
| lineView.gutter = null; |
| } |
| if (lineView.gutterBackground) { |
| lineView.node.removeChild(lineView.gutterBackground); |
| lineView.gutterBackground = null; |
| } |
| if (lineView.line.gutterClass) { |
| var wrap = ensureLineWrapped(lineView); |
| lineView.gutterBackground = elt("div", null, "CodeMirror-gutter-background " + lineView.line.gutterClass, |
| ("left: " + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px; width: " + (dims.gutterTotalWidth) + "px")); |
| cm.display.input.setUneditable(lineView.gutterBackground); |
| wrap.insertBefore(lineView.gutterBackground, lineView.text); |
| } |
| var markers = lineView.line.gutterMarkers; |
| if (cm.options.lineNumbers || markers) { |
| var wrap$1 = ensureLineWrapped(lineView); |
| var gutterWrap = lineView.gutter = elt("div", null, "CodeMirror-gutter-wrapper", ("left: " + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px")); |
| cm.display.input.setUneditable(gutterWrap); |
| wrap$1.insertBefore(gutterWrap, lineView.text); |
| if (lineView.line.gutterClass) |
| { gutterWrap.className += " " + lineView.line.gutterClass; } |
| if (cm.options.lineNumbers && (!markers || !markers["CodeMirror-linenumbers"])) |
| { lineView.lineNumber = gutterWrap.appendChild( |
| elt("div", lineNumberFor(cm.options, lineN), |
| "CodeMirror-linenumber CodeMirror-gutter-elt", |
| ("left: " + (dims.gutterLeft["CodeMirror-linenumbers"]) + "px; width: " + (cm.display.lineNumInnerWidth) + "px"))); } |
| if (markers) { for (var k = 0; k < cm.display.gutterSpecs.length; ++k) { |
| var id = cm.display.gutterSpecs[k].className, found = markers.hasOwnProperty(id) && markers[id]; |
| if (found) |
| { gutterWrap.appendChild(elt("div", [found], "CodeMirror-gutter-elt", |
| ("left: " + (dims.gutterLeft[id]) + "px; width: " + (dims.gutterWidth[id]) + "px"))); } |
| } } |
| } |
| } |
| |
| function updateLineWidgets(cm, lineView, dims) { |
| if (lineView.alignable) { lineView.alignable = null; } |
| for (var node = lineView.node.firstChild, next = (void 0); node; node = next) { |
| next = node.nextSibling; |
| if (node.className == "CodeMirror-linewidget") |
| { lineView.node.removeChild(node); } |
| } |
| insertLineWidgets(cm, lineView, dims); |
| } |
| |
| // Build a line's DOM representation from scratch |
| function buildLineElement(cm, lineView, lineN, dims) { |
| var built = getLineContent(cm, lineView); |
| lineView.text = lineView.node = built.pre; |
| if (built.bgClass) { lineView.bgClass = built.bgClass; } |
| if (built.textClass) { lineView.textClass = built.textClass; } |
| |
| updateLineClasses(cm, lineView); |
| updateLineGutter(cm, lineView, lineN, dims); |
| insertLineWidgets(cm, lineView, dims); |
| return lineView.node |
| } |
| |
| // A lineView may contain multiple logical lines (when merged by |
| // collapsed spans). The widgets for all of them need to be drawn. |
| function insertLineWidgets(cm, lineView, dims) { |
| insertLineWidgetsFor(cm, lineView.line, lineView, dims, true); |
| if (lineView.rest) { for (var i = 0; i < lineView.rest.length; i++) |
| { insertLineWidgetsFor(cm, lineView.rest[i], lineView, dims, false); } } |
| } |
| |
| function insertLineWidgetsFor(cm, line, lineView, dims, allowAbove) { |
| if (!line.widgets) { return } |
| var wrap = ensureLineWrapped(lineView); |
| for (var i = 0, ws = line.widgets; i < ws.length; ++i) { |
| var widget = ws[i], node = elt("div", [widget.node], "CodeMirror-linewidget"); |
| if (!widget.handleMouseEvents) { node.setAttribute("cm-ignore-events", "true"); } |
| positionLineWidget(widget, node, lineView, dims); |
| cm.display.input.setUneditable(node); |
| if (allowAbove && widget.above) |
| { wrap.insertBefore(node, lineView.gutter || lineView.text); } |
| else |
| { wrap.appendChild(node); } |
| signalLater(widget, "redraw"); |
| } |
| } |
| |
| function positionLineWidget(widget, node, lineView, dims) { |
| if (widget.noHScroll) { |
| (lineView.alignable || (lineView.alignable = [])).push(node); |
| var width = dims.wrapperWidth; |
| node.style.left = dims.fixedPos + "px"; |
| if (!widget.coverGutter) { |
| width -= dims.gutterTotalWidth; |
| node.style.paddingLeft = dims.gutterTotalWidth + "px"; |
| } |
| node.style.width = width + "px"; |
| } |
| if (widget.coverGutter) { |
| node.style.zIndex = 5; |
| node.style.position = "relative"; |
| if (!widget.noHScroll) { node.style.marginLeft = -dims.gutterTotalWidth + "px"; } |
| } |
| } |
| |
| function widgetHeight(widget) { |
| if (widget.height != null) { return widget.height } |
| var cm = widget.doc.cm; |
| if (!cm) { return 0 } |
| if (!contains(document.body, widget.node)) { |
| var parentStyle = "position: relative;"; |
| if (widget.coverGutter) |
| { parentStyle += "margin-left: -" + cm.display.gutters.offsetWidth + "px;"; } |
| if (widget.noHScroll) |
| { parentStyle += "width: " + cm.display.wrapper.clientWidth + "px;"; } |
| removeChildrenAndAdd(cm.display.measure, elt("div", [widget.node], null, parentStyle)); |
| } |
| return widget.height = widget.node.parentNode.offsetHeight |
| } |
| |
| // Return true when the given mouse event happened in a widget |
| function eventInWidget(display, e) { |
| for (var n = e_target(e); n != display.wrapper; n = n.parentNode) { |
| if (!n || (n.nodeType == 1 && n.getAttribute("cm-ignore-events") == "true") || |
| (n.parentNode == display.sizer && n != display.mover)) |
| { return true } |
| } |
| } |
| |
| // POSITION MEASUREMENT |
| |
| function paddingTop(display) {return display.lineSpace.offsetTop} |
| function paddingVert(display) {return display.mover.offsetHeight - display.lineSpace.offsetHeight} |
| function paddingH(display) { |
| if (display.cachedPaddingH) { return display.cachedPaddingH } |
| var e = removeChildrenAndAdd(display.measure, elt("pre", "x")); |
| var style = window.getComputedStyle ? window.getComputedStyle(e) : e.currentStyle; |
| var data = {left: parseInt(style.paddingLeft), right: parseInt(style.paddingRight)}; |
| if (!isNaN(data.left) && !isNaN(data.right)) { display.cachedPaddingH = data; } |
| return data |
| } |
| |
| function scrollGap(cm) { return scrollerGap - cm.display.nativeBarWidth } |
| function displayWidth(cm) { |
| return cm.display.scroller.clientWidth - scrollGap(cm) - cm.display.barWidth |
| } |
| function displayHeight(cm) { |
| return cm.display.scroller.clientHeight - scrollGap(cm) - cm.display.barHeight |
| } |
| |
| // Ensure the lineView.wrapping.heights array is populated. This is |
| // an array of bottom offsets for the lines that make up a drawn |
| // line. When lineWrapping is on, there might be more than one |
| // height. |
| function ensureLineHeights(cm, lineView, rect) { |
| var wrapping = cm.options.lineWrapping; |
| var curWidth = wrapping && displayWidth(cm); |
| if (!lineView.measure.heights || wrapping && lineView.measure.width != curWidth) { |
| var heights = lineView.measure.heights = []; |
| if (wrapping) { |
| lineView.measure.width = curWidth; |
| var rects = lineView.text.firstChild.getClientRects(); |
| for (var i = 0; i < rects.length - 1; i++) { |
| var cur = rects[i], next = rects[i + 1]; |
| if (Math.abs(cur.bottom - next.bottom) > 2) |
| { heights.push((cur.bottom + next.top) / 2 - rect.top); } |
| } |
| } |
| heights.push(rect.bottom - rect.top); |
| } |
| } |
| |
| // Find a line map (mapping character offsets to text nodes) and a |
| // measurement cache for the given line number. (A line view might |
| // contain multiple lines when collapsed ranges are present.) |
| function mapFromLineView(lineView, line, lineN) { |
| if (lineView.line == line) |
| { return {map: lineView.measure.map, cache: lineView.measure.cache} } |
| for (var i = 0; i < lineView.rest.length; i++) |
| { if (lineView.rest[i] == line) |
| { return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i]} } } |
| for (var i$1 = 0; i$1 < lineView.rest.length; i$1++) |
| { if (lineNo(lineView.rest[i$1]) > lineN) |
| { return {map: lineView.measure.maps[i$1], cache: lineView.measure.caches[i$1], before: true} } } |
| } |
| |
| // Render a line into the hidden node display.externalMeasured. Used |
| // when measurement is needed for a line that's not in the viewport. |
| function updateExternalMeasurement(cm, line) { |
| line = visualLine(line); |
| var lineN = lineNo(line); |
| var view = cm.display.externalMeasured = new LineView(cm.doc, line, lineN); |
| view.lineN = lineN; |
| var built = view.built = buildLineContent(cm, view); |
| view.text = built.pre; |
| removeChildrenAndAdd(cm.display.lineMeasure, built.pre); |
| return view |
| } |
| |
| // Get a {top, bottom, left, right} box (in line-local coordinates) |
| // for a given character. |
| function measureChar(cm, line, ch, bias) { |
| return measureCharPrepared(cm, prepareMeasureForLine(cm, line), ch, bias) |
| } |
| |
| // Find a line view that corresponds to the given line number. |
| function findViewForLine(cm, lineN) { |
| if (lineN >= cm.display.viewFrom && lineN < cm.display.viewTo) |
| { return cm.display.view[findViewIndex(cm, lineN)] } |
| var ext = cm.display.externalMeasured; |
| if (ext && lineN >= ext.lineN && lineN < ext.lineN + ext.size) |
| { return ext } |
| } |
| |
| // Measurement can be split in two steps, the set-up work that |
| // applies to the whole line, and the measurement of the actual |
| // character. Functions like coordsChar, that need to do a lot of |
| // measurements in a row, can thus ensure that the set-up work is |
| // only done once. |
| function prepareMeasureForLine(cm, line) { |
| var lineN = lineNo(line); |
| var view = findViewForLine(cm, lineN); |
| if (view && !view.text) { |
| view = null; |
| } else if (view && view.changes) { |
| updateLineForChanges(cm, view, lineN, getDimensions(cm)); |
| cm.curOp.forceUpdate = true; |
| } |
| if (!view) |
| { view = updateExternalMeasurement(cm, line); } |
| |
| var info = mapFromLineView(view, line, lineN); |
| return { |
| line: line, view: view, rect: null, |
| map: info.map, cache: info.cache, before: info.before, |
| hasHeights: false |
| } |
| } |
| |
| // Given a prepared measurement object, measures the position of an |
| // actual character (or fetches it from the cache). |
| function measureCharPrepared(cm, prepared, ch, bias, varHeight) { |
| if (prepared.before) { ch = -1; } |
| var key = ch + (bias || ""), found; |
| if (prepared.cache.hasOwnProperty(key)) { |
| found = prepared.cache[key]; |
| } else { |
| if (!prepared.rect) |
| { prepared.rect = prepared.view.text.getBoundingClientRect(); } |
| if (!prepared.hasHeights) { |
| ensureLineHeights(cm, prepared.view, prepared.rect); |
| prepared.hasHeights = true; |
| } |
| found = measureCharInner(cm, prepared, ch, bias); |
| if (!found.bogus) { prepared.cache[key] = found; } |
| } |
| return {left: found.left, right: found.right, |
| top: varHeight ? found.rtop : found.top, |
| bottom: varHeight ? found.rbottom : found.bottom} |
| } |
| |
| var nullRect = {left: 0, right: 0, top: 0, bottom: 0}; |
| |
| function nodeAndOffsetInLineMap(map$$1, ch, bias) { |
| var node, start, end, collapse, mStart, mEnd; |
| // First, search the line map for the text node corresponding to, |
| // or closest to, the target character. |
| for (var i = 0; i < map$$1.length; i += 3) { |
| mStart = map$$1[i]; |
| mEnd = map$$1[i + 1]; |
| if (ch < mStart) { |
| start = 0; end = 1; |
| collapse = "left"; |
| } else if (ch < mEnd) { |
| start = ch - mStart; |
| end = start + 1; |
| } else if (i == map$$1.length - 3 || ch == mEnd && map$$1[i + 3] > ch) { |
| end = mEnd - mStart; |
| start = end - 1; |
| if (ch >= mEnd) { collapse = "right"; } |
| } |
| if (start != null) { |
| node = map$$1[i + 2]; |
| if (mStart == mEnd && bias == (node.insertLeft ? "left" : "right")) |
| { collapse = bias; } |
| if (bias == "left" && start == 0) |
| { while (i && map$$1[i - 2] == map$$1[i - 3] && map$$1[i - 1].insertLeft) { |
| node = map$$1[(i -= 3) + 2]; |
| collapse = "left"; |
| } } |
| if (bias == "right" && start == mEnd - mStart) |
| { while (i < map$$1.length - 3 && map$$1[i + 3] == map$$1[i + 4] && !map$$1[i + 5].insertLeft) { |
| node = map$$1[(i += 3) + 2]; |
| collapse = "right"; |
| } } |
| break |
| } |
| } |
| return {node: node, start: start, end: end, collapse: collapse, coverStart: mStart, coverEnd: mEnd} |
| } |
| |
| function getUsefulRect(rects, bias) { |
| var rect = nullRect; |
| if (bias == "left") { for (var i = 0; i < rects.length; i++) { |
| if ((rect = rects[i]).left != rect.right) { break } |
| } } else { for (var i$1 = rects.length - 1; i$1 >= 0; i$1--) { |
| if ((rect = rects[i$1]).left != rect.right) { break } |
| } } |
| return rect |
| } |
| |
| function measureCharInner(cm, prepared, ch, bias) { |
| var place = nodeAndOffsetInLineMap(prepared.map, ch, bias); |
| var node = place.node, start = place.start, end = place.end, collapse = place.collapse; |
| |
| var rect; |
| if (node.nodeType == 3) { // If it is a text node, use a range to retrieve the coordinates. |
| for (var i$1 = 0; i$1 < 4; i$1++) { // Retry a maximum of 4 times when nonsense rectangles are returned |
| while (start && isExtendingChar(prepared.line.text.charAt(place.coverStart + start))) { --start; } |
| while (place.coverStart + end < place.coverEnd && isExtendingChar(prepared.line.text.charAt(place.coverStart + end))) { ++end; } |
| if (ie && ie_version < 9 && start == 0 && end == place.coverEnd - place.coverStart) |
| { rect = node.parentNode.getBoundingClientRect(); } |
| else |
| { rect = getUsefulRect(range(node, start, end).getClientRects(), bias); } |
| if (rect.left || rect.right || start == 0) { break } |
| end = start; |
| start = start - 1; |
| collapse = "right"; |
| } |
| if (ie && ie_version < 11) { rect = maybeUpdateRectForZooming(cm.display.measure, rect); } |
| } else { // If it is a widget, simply get the box for the whole widget. |
| if (start > 0) { collapse = bias = "right"; } |
| var rects; |
| if (cm.options.lineWrapping && (rects = node.getClientRects()).length > 1) |
| { rect = rects[bias == "right" ? rects.length - 1 : 0]; } |
| else |
| { rect = node.getBoundingClientRect(); } |
| } |
| if (ie && ie_version < 9 && !start && (!rect || !rect.left && !rect.right)) { |
| var rSpan = node.parentNode.getClientRects()[0]; |
| if (rSpan) |
| { rect = {left: rSpan.left, right: rSpan.left + charWidth(cm.display), top: rSpan.top, bottom: rSpan.bottom}; } |
| else |
| { rect = nullRect; } |
| } |
| |
| var rtop = rect.top - prepared.rect.top, rbot = rect.bottom - prepared.rect.top; |
| var mid = (rtop + rbot) / 2; |
| var heights = prepared.view.measure.heights; |
| var i = 0; |
| for (; i < heights.length - 1; i++) |
| { if (mid < heights[i]) { break } } |
| var top = i ? heights[i - 1] : 0, bot = heights[i]; |
| var result = {left: (collapse == "right" ? rect.right : rect.left) - prepared.rect.left, |
| right: (collapse == "left" ? rect.left : rect.right) - prepared.rect.left, |
| top: top, bottom: bot}; |
| if (!rect.left && !rect.right) { result.bogus = true; } |
| if (!cm.options.singleCursorHeightPerLine) { result.rtop = rtop; result.rbottom = rbot; } |
| |
| return result |
| } |
| |
| // Work around problem with bounding client rects on ranges being |
| // returned incorrectly when zoomed on IE10 and below. |
| function maybeUpdateRectForZooming(measure, rect) { |
| if (!window.screen || screen.logicalXDPI == null || |
| screen.logicalXDPI == screen.deviceXDPI || !hasBadZoomedRects(measure)) |
| { return rect } |
| var scaleX = screen.logicalXDPI / screen.deviceXDPI; |
| var scaleY = screen.logicalYDPI / screen.deviceYDPI; |
| return {left: rect.left * scaleX, right: rect.right * scaleX, |
| top: rect.top * scaleY, bottom: rect.bottom * scaleY} |
| } |
| |
| function clearLineMeasurementCacheFor(lineView) { |
| if (lineView.measure) { |
| lineView.measure.cache = {}; |
| lineView.measure.heights = null; |
| if (lineView.rest) { for (var i = 0; i < lineView.rest.length; i++) |
| { lineView.measure.caches[i] = {}; } } |
| } |
| } |
| |
| function clearLineMeasurementCache(cm) { |
| cm.display.externalMeasure = null; |
| removeChildren(cm.display.lineMeasure); |
| for (var i = 0; i < cm.display.view.length; i++) |
| { clearLineMeasurementCacheFor(cm.display.view[i]); } |
| } |
| |
| function clearCaches(cm) { |
| clearLineMeasurementCache(cm); |
| cm.display.cachedCharWidth = cm.display.cachedTextHeight = cm.display.cachedPaddingH = null; |
| if (!cm.options.lineWrapping) { cm.display.maxLineChanged = true; } |
| cm.display.lineNumChars = null; |
| } |
| |
| function pageScrollX() { |
| // Work around https://bugs.chromium.org/p/chromium/issues/detail?id=489206 |
| // which causes page_Offset and bounding client rects to use |
| // different reference viewports and invalidate our calculations. |
| if (chrome && android) { return -(document.body.getBoundingClientRect().left - parseInt(getComputedStyle(document.body).marginLeft)) } |
| return window.pageXOffset || (document.documentElement || document.body).scrollLeft |
| } |
| function pageScrollY() { |
| if (chrome && android) { return -(document.body.getBoundingClientRect().top - parseInt(getComputedStyle(document.body).marginTop)) } |
| return window.pageYOffset || (document.documentElement || document.body).scrollTop |
| } |
| |
| function widgetTopHeight(lineObj) { |
| var height = 0; |
| if (lineObj.widgets) { for (var i = 0; i < lineObj.widgets.length; ++i) { if (lineObj.widgets[i].above) |
| { height += widgetHeight(lineObj.widgets[i]); } } } |
| return height |
| } |
| |
| // Converts a {top, bottom, left, right} box from line-local |
| // coordinates into another coordinate system. Context may be one of |
| // "line", "div" (display.lineDiv), "local"./null (editor), "window", |
| // or "page". |
| function intoCoordSystem(cm, lineObj, rect, context, includeWidgets) { |
| if (!includeWidgets) { |
| var height = widgetTopHeight(lineObj); |
| rect.top += height; rect.bottom += height; |
| } |
| if (context == "line") { return rect } |
| if (!context) { context = "local"; } |
| var yOff = heightAtLine(lineObj); |
| if (context == "local") { yOff += paddingTop(cm.display); } |
| else { yOff -= cm.display.viewOffset; } |
| if (context == "page" || context == "window") { |
| var lOff = cm.display.lineSpace.getBoundingClientRect(); |
| yOff += lOff.top + (context == "window" ? 0 : pageScrollY()); |
| var xOff = lOff.left + (context == "window" ? 0 : pageScrollX()); |
| rect.left += xOff; rect.right += xOff; |
| } |
| rect.top += yOff; rect.bottom += yOff; |
| return rect |
| } |
| |
| // Coverts a box from "div" coords to another coordinate system. |
| // Context may be "window", "page", "div", or "local"./null. |
| function fromCoordSystem(cm, coords, context) { |
| if (context == "div") { return coords } |
| var left = coords.left, top = coords.top; |
| // First move into "page" coordinate system |
| if (context == "page") { |
| left -= pageScrollX(); |
| top -= pageScrollY(); |
| } else if (context == "local" || !context) { |
| var localBox = cm.display.sizer.getBoundingClientRect(); |
| left += localBox.left; |
| top += localBox.top; |
| } |
| |
| var lineSpaceBox = cm.display.lineSpace.getBoundingClientRect(); |
| return {left: left - lineSpaceBox.left, top: top - lineSpaceBox.top} |
| } |
| |
| function charCoords(cm, pos, context, lineObj, bias) { |
| if (!lineObj) { lineObj = getLine(cm.doc, pos.line); } |
| return intoCoordSystem(cm, lineObj, measureChar(cm, lineObj, pos.ch, bias), context) |
| } |
| |
| // Returns a box for a given cursor position, which may have an |
| // 'other' property containing the position of the secondary cursor |
| // on a bidi boundary. |
| // A cursor Pos(line, char, "before") is on the same visual line as `char - 1` |
| // and after `char - 1` in writing order of `char - 1` |
| // A cursor Pos(line, char, "after") is on the same visual line as `char` |
| // and before `char` in writing order of `char` |
| // Examples (upper-case letters are RTL, lower-case are LTR): |
| // Pos(0, 1, ...) |
| // before after |
| // ab a|b a|b |
| // aB a|B aB| |
| // Ab |Ab A|b |
| // AB B|A B|A |
| // Every position after the last character on a line is considered to stick |
| // to the last character on the line. |
| function cursorCoords(cm, pos, context, lineObj, preparedMeasure, varHeight) { |
| lineObj = lineObj || getLine(cm.doc, pos.line); |
| if (!preparedMeasure) { preparedMeasure = prepareMeasureForLine(cm, lineObj); } |
| function get(ch, right) { |
| var m = measureCharPrepared(cm, preparedMeasure, ch, right ? "right" : "left", varHeight); |
| if (right) { m.left = m.right; } else { m.right = m.left; } |
| return intoCoordSystem(cm, lineObj, m, context) |
| } |
| var order = getOrder(lineObj, cm.doc.direction), ch = pos.ch, sticky = pos.sticky; |
| if (ch >= lineObj.text.length) { |
| ch = lineObj.text.length; |
| sticky = "before"; |
| } else if (ch <= 0) { |
| ch = 0; |
| sticky = "after"; |
| } |
| if (!order) { return get(sticky == "before" ? ch - 1 : ch, sticky == "before") } |
| |
| function getBidi(ch, partPos, invert) { |
| var part = order[partPos], right = part.level == 1; |
| return get(invert ? ch - 1 : ch, right != invert) |
| } |
| var partPos = getBidiPartAt(order, ch, sticky); |
| var other = bidiOther; |
| var val = getBidi(ch, partPos, sticky == "before"); |
| if (other != null) { val.other = getBidi(ch, other, sticky != "before"); } |
| return val |
| } |
| |
| // Used to cheaply estimate the coordinates for a position. Used for |
| // intermediate scroll updates. |
| function estimateCoords(cm, pos) { |
| var left = 0; |
| pos = clipPos(cm.doc, pos); |
| if (!cm.options.lineWrapping) { left = charWidth(cm.display) * pos.ch; } |
| var lineObj = getLine(cm.doc, pos.line); |
| var top = heightAtLine(lineObj) + paddingTop(cm.display); |
| return {left: left, right: left, top: top, bottom: top + lineObj.height} |
| } |
| |
| // Positions returned by coordsChar contain some extra information. |
| // xRel is the relative x position of the input coordinates compared |
| // to the found position (so xRel > 0 means the coordinates are to |
| // the right of the character position, for example). When outside |
| // is true, that means the coordinates lie outside the line's |
| // vertical range. |
| function PosWithInfo(line, ch, sticky, outside, xRel) { |
| var pos = Pos(line, ch, sticky); |
| pos.xRel = xRel; |
| if (outside) { pos.outside = true; } |
| return pos |
| } |
| |
| // Compute the character position closest to the given coordinates. |
| // Input must be lineSpace-local ("div" coordinate system). |
| function coordsChar(cm, x, y) { |
| var doc = cm.doc; |
| y += cm.display.viewOffset; |
| if (y < 0) { return PosWithInfo(doc.first, 0, null, true, -1) } |
| var lineN = lineAtHeight(doc, y), last = doc.first + doc.size - 1; |
| if (lineN > last) |
| { return PosWithInfo(doc.first + doc.size - 1, getLine(doc, last).text.length, null, true, 1) } |
| if (x < 0) { x = 0; } |
| |
| var lineObj = getLine(doc, lineN); |
| for (;;) { |
| var found = coordsCharInner(cm, lineObj, lineN, x, y); |
| var collapsed = collapsedSpanAround(lineObj, found.ch + (found.xRel > 0 ? 1 : 0)); |
| if (!collapsed) { return found } |
| var rangeEnd = collapsed.find(1); |
| if (rangeEnd.line == lineN) { return rangeEnd } |
| lineObj = getLine(doc, lineN = rangeEnd.line); |
| } |
| } |
| |
| function wrappedLineExtent(cm, lineObj, preparedMeasure, y) { |
| y -= widgetTopHeight(lineObj); |
| var end = lineObj.text.length; |
| var begin = findFirst(function (ch) { return measureCharPrepared(cm, preparedMeasure, ch - 1).bottom <= y; }, end, 0); |
| end = findFirst(function (ch) { return measureCharPrepared(cm, preparedMeasure, ch).top > y; }, begin, end); |
| return {begin: begin, end: end} |
| } |
| |
| function wrappedLineExtentChar(cm, lineObj, preparedMeasure, target) { |
| if (!preparedMeasure) { preparedMeasure = prepareMeasureForLine(cm, lineObj); } |
| var targetTop = intoCoordSystem(cm, lineObj, measureCharPrepared(cm, preparedMeasure, target), "line").top; |
| return wrappedLineExtent(cm, lineObj, preparedMeasure, targetTop) |
| } |
| |
| // Returns true if the given side of a box is after the given |
| // coordinates, in top-to-bottom, left-to-right order. |
| function boxIsAfter(box, x, y, left) { |
| return box.bottom <= y ? false : box.top > y ? true : (left ? box.left : box.right) > x |
| } |
| |
| function coordsCharInner(cm, lineObj, lineNo$$1, x, y) { |
| // Move y into line-local coordinate space |
| y -= heightAtLine(lineObj); |
| var preparedMeasure = prepareMeasureForLine(cm, lineObj); |
| // When directly calling `measureCharPrepared`, we have to adjust |
| // for the widgets at this line. |
| var widgetHeight$$1 = widgetTopHeight(lineObj); |
| var begin = 0, end = lineObj.text.length, ltr = true; |
| |
| var order = getOrder(lineObj, cm.doc.direction); |
| // If the line isn't plain left-to-right text, first figure out |
| // which bidi section the coordinates fall into. |
| if (order) { |
| var part = (cm.options.lineWrapping ? coordsBidiPartWrapped : coordsBidiPart) |
| (cm, lineObj, lineNo$$1, preparedMeasure, order, x, y); |
| ltr = part.level != 1; |
| // The awkward -1 offsets are needed because findFirst (called |
| // on these below) will treat its first bound as inclusive, |
| // second as exclusive, but we want to actually address the |
| // characters in the part's range |
| begin = ltr ? part.from : part.to - 1; |
| end = ltr ? part.to : part.from - 1; |
| } |
| |
| // A binary search to find the first character whose bounding box |
| // starts after the coordinates. If we run across any whose box wrap |
| // the coordinates, store that. |
| var chAround = null, boxAround = null; |
| var ch = findFirst(function (ch) { |
| var box = measureCharPrepared(cm, preparedMeasure, ch); |
| box.top += widgetHeight$$1; box.bottom += widgetHeight$$1; |
| if (!boxIsAfter(box, x, y, false)) { return false } |
| if (box.top <= y && box.left <= x) { |
| chAround = ch; |
| boxAround = box; |
| } |
| return true |
| }, begin, end); |
| |
| var baseX, sticky, outside = false; |
| // If a box around the coordinates was found, use that |
| if (boxAround) { |
| // Distinguish coordinates nearer to the left or right side of the box |
| var atLeft = x - boxAround.left < boxAround.right - x, atStart = atLeft == ltr; |
| ch = chAround + (atStart ? 0 : 1); |
| sticky = atStart ? "after" : "before"; |
| baseX = atLeft ? boxAround.left : boxAround.right; |
| } else { |
| // (Adjust for extended bound, if necessary.) |
| if (!ltr && (ch == end || ch == begin)) { ch++; } |
| // To determine which side to associate with, get the box to the |
| // left of the character and compare it's vertical position to the |
| // coordinates |
| sticky = ch == 0 ? "after" : ch == lineObj.text.length ? "before" : |
| (measureCharPrepared(cm, preparedMeasure, ch - (ltr ? 1 : 0)).bottom + widgetHeight$$1 <= y) == ltr ? |
| "after" : "before"; |
| // Now get accurate coordinates for this place, in order to get a |
| // base X position |
| var coords = cursorCoords(cm, Pos(lineNo$$1, ch, sticky), "line", lineObj, preparedMeasure); |
| baseX = coords.left; |
| outside = y < coords.top || y >= coords.bottom; |
| } |
| |
| ch = skipExtendingChars(lineObj.text, ch, 1); |
| return PosWithInfo(lineNo$$1, ch, sticky, outside, x - baseX) |
| } |
| |
| function coordsBidiPart(cm, lineObj, lineNo$$1, preparedMeasure, order, x, y) { |
| // Bidi parts are sorted left-to-right, and in a non-line-wrapping |
| // situation, we can take this ordering to correspond to the visual |
| // ordering. This finds the first part whose end is after the given |
| // coordinates. |
| var index = findFirst(function (i) { |
| var part = order[i], ltr = part.level != 1; |
| return boxIsAfter(cursorCoords(cm, Pos(lineNo$$1, ltr ? part.to : part.from, ltr ? "before" : "after"), |
| "line", lineObj, preparedMeasure), x, y, true) |
| }, 0, order.length - 1); |
| var part = order[index]; |
| // If this isn't the first part, the part's start is also after |
| // the coordinates, and the coordinates aren't on the same line as |
| // that start, move one part back. |
| if (index > 0) { |
| var ltr = part.level != 1; |
| var start = cursorCoords(cm, Pos(lineNo$$1, ltr ? part.from : part.to, ltr ? "after" : "before"), |
| "line", lineObj, preparedMeasure); |
| if (boxIsAfter(start, x, y, true) && start.top > y) |
| { part = order[index - 1]; } |
| } |
| return part |
| } |
| |
| function coordsBidiPartWrapped(cm, lineObj, _lineNo, preparedMeasure, order, x, y) { |
| // In a wrapped line, rtl text on wrapping boundaries can do things |
| // that don't correspond to the ordering in our `order` array at |
| // all, so a binary search doesn't work, and we want to return a |
| // part that only spans one line so that the binary search in |
| // coordsCharInner is safe. As such, we first find the extent of the |
| // wrapped line, and then do a flat search in which we discard any |
| // spans that aren't on the line. |
| var ref = wrappedLineExtent(cm, lineObj, preparedMeasure, y); |
| var begin = ref.begin; |
| var end = ref.end; |
| if (/\s/.test(lineObj.text.charAt(end - 1))) { end--; } |
| var part = null, closestDist = null; |
| for (var i = 0; i < order.length; i++) { |
| var p = order[i]; |
| if (p.from >= end || p.to <= begin) { continue } |
| var ltr = p.level != 1; |
| var endX = measureCharPrepared(cm, preparedMeasure, ltr ? Math.min(end, p.to) - 1 : Math.max(begin, p.from)).right; |
| // Weigh against spans ending before this, so that they are only |
| // picked if nothing ends after |
| var dist = endX < x ? x - endX + 1e9 : endX - x; |
| if (!part || closestDist > dist) { |
| part = p; |
| closestDist = dist; |
| } |
| } |
| if (!part) { part = order[order.length - 1]; } |
| // Clip the part to the wrapped line. |
| if (part.from < begin) { part = {from: begin, to: part.to, level: part.level}; } |
| if (part.to > end) { part = {from: part.from, to: end, level: part.level}; } |
| return part |
| } |
| |
| var measureText; |
| // Compute the default text height. |
| function textHeight(display) { |
| if (display.cachedTextHeight != null) { return display.cachedTextHeight } |
| if (measureText == null) { |
| measureText = elt("pre"); |
| // Measure a bunch of lines, for browsers that compute |
| // fractional heights. |
| for (var i = 0; i < 49; ++i) { |
| measureText.appendChild(document.createTextNode("x")); |
| measureText.appendChild(elt("br")); |
| } |
| measureText.appendChild(document.createTextNode("x")); |
| } |
| removeChildrenAndAdd(display.measure, measureText); |
| var height = measureText.offsetHeight / 50; |
| if (height > 3) { display.cachedTextHeight = height; } |
| removeChildren(display.measure); |
| return height || 1 |
| } |
| |
| // Compute the default character width. |
| function charWidth(display) { |
| if (display.cachedCharWidth != null) { return display.cachedCharWidth } |
| var anchor = elt("span", "xxxxxxxxxx"); |
| var pre = elt("pre", [anchor]); |
| removeChildrenAndAdd(display.measure, pre); |
| var rect = anchor.getBoundingClientRect(), width = (rect.right - rect.left) / 10; |
| if (width > 2) { display.cachedCharWidth = width; } |
| return width || 10 |
| } |
| |
| // Do a bulk-read of the DOM positions and sizes needed to draw the |
| // view, so that we don't interleave reading and writing to the DOM. |
| function getDimensions(cm) { |
| var d = cm.display, left = {}, width = {}; |
| var gutterLeft = d.gutters.clientLeft; |
| for (var n = d.gutters.firstChild, i = 0; n; n = n.nextSibling, ++i) { |
| var id = cm.display.gutterSpecs[i].className; |
| left[id] = n.offsetLeft + n.clientLeft + gutterLeft; |
| width[id] = n.clientWidth; |
| } |
| return {fixedPos: compensateForHScroll(d), |
| gutterTotalWidth: d.gutters.offsetWidth, |
| gutterLeft: left, |
| gutterWidth: width, |
| wrapperWidth: d.wrapper.clientWidth} |
| } |
| |
| // Computes display.scroller.scrollLeft + display.gutters.offsetWidth, |
| // but using getBoundingClientRect to get a sub-pixel-accurate |
| // result. |
| function compensateForHScroll(display) { |
| return display.scroller.getBoundingClientRect().left - display.sizer.getBoundingClientRect().left |
| } |
| |
| // Returns a function that estimates the height of a line, to use as |
| // first approximation until the line becomes visible (and is thus |
| // properly measurable). |
| function estimateHeight(cm) { |
| var th = textHeight(cm.display), wrapping = cm.options.lineWrapping; |
| var perLine = wrapping && Math.max(5, cm.display.scroller.clientWidth / charWidth(cm.display) - 3); |
| return function (line) { |
| if (lineIsHidden(cm.doc, line)) { return 0 } |
| |
| var widgetsHeight = 0; |
| if (line.widgets) { for (var i = 0; i < line.widgets.length; i++) { |
| if (line.widgets[i].height) { widgetsHeight += line.widgets[i].height; } |
| } } |
| |
| if (wrapping) |
| { return widgetsHeight + (Math.ceil(line.text.length / perLine) || 1) * th } |
| else |
| { return widgetsHeight + th } |
| } |
| } |
| |
| function estimateLineHeights(cm) { |
| var doc = cm.doc, est = estimateHeight(cm); |
| doc.iter(function (line) { |
| var estHeight = est(line); |
| if (estHeight != line.height) { updateLineHeight(line, estHeight); } |
| }); |
| } |
| |
| // Given a mouse event, find the corresponding position. If liberal |
| // is false, it checks whether a gutter or scrollbar was clicked, |
| // and returns null if it was. forRect is used by rectangular |
| // selections, and tries to estimate a character position even for |
| // coordinates beyond the right of the text. |
| function posFromMouse(cm, e, liberal, forRect) { |
| var display = cm.display; |
| if (!liberal && e_target(e).getAttribute("cm-not-content") == "true") { return null } |
| |
| var x, y, space = display.lineSpace.getBoundingClientRect(); |
| // Fails unpredictably on IE[67] when mouse is dragged around quickly. |
| try { x = e.clientX - space.left; y = e.clientY - space.top; } |
| catch (e) { return null } |
| var coords = coordsChar(cm, x, y), line; |
| if (forRect && coords.xRel == 1 && (line = getLine(cm.doc, coords.line).text).length == coords.ch) { |
| var colDiff = countColumn(line, line.length, cm.options.tabSize) - line.length; |
| coords = Pos(coords.line, Math.max(0, Math.round((x - paddingH(cm.display).left) / charWidth(cm.display)) - colDiff)); |
| } |
| return coords |
| } |
| |
| // Find the view element corresponding to a given line. Return null |
| // when the line isn't visible. |
| function findViewIndex(cm, n) { |
| if (n >= cm.display.viewTo) { return null } |
| n -= cm.display.viewFrom; |
| if (n < 0) { return null } |
| var view = cm.display.view; |
| for (var i = 0; i < view.length; i++) { |
| n -= view[i].size; |
| if (n < 0) { return i } |
| } |
| } |
| |
| // Updates the display.view data structure for a given change to the |
| // document. From and to are in pre-change coordinates. Lendiff is |
| // the amount of lines added or subtracted by the change. This is |
| // used for changes that span multiple lines, or change the way |
| // lines are divided into visual lines. regLineChange (below) |
| // registers single-line changes. |
| function regChange(cm, from, to, lendiff) { |
| if (from == null) { from = cm.doc.first; } |
| if (to == null) { to = cm.doc.first + cm.doc.size; } |
| if (!lendiff) { lendiff = 0; } |
| |
| var display = cm.display; |
| if (lendiff && to < display.viewTo && |
| (display.updateLineNumbers == null || display.updateLineNumbers > from)) |
| { display.updateLineNumbers = from; } |
| |
| cm.curOp.viewChanged = true; |
| |
| if (from >= display.viewTo) { // Change after |
| if (sawCollapsedSpans && visualLineNo(cm.doc, from) < display.viewTo) |
| { resetView(cm); } |
| } else if (to <= display.viewFrom) { // Change before |
| if (sawCollapsedSpans && visualLineEndNo(cm.doc, to + lendiff) > display.viewFrom) { |
| resetView(cm); |
| } else { |
| display.viewFrom += lendiff; |
| display.viewTo += lendiff; |
| } |
| } else if (from <= display.viewFrom && to >= display.viewTo) { // Full overlap |
| resetView(cm); |
| } else if (from <= display.viewFrom) { // Top overlap |
| var cut = viewCuttingPoint(cm, to, to + lendiff, 1); |
| if (cut) { |
| display.view = display.view.slice(cut.index); |
| display.viewFrom = cut.lineN; |
| display.viewTo += lendiff; |
| } else { |
| resetView(cm); |
| } |
| } else if (to >= display.viewTo) { // Bottom overlap |
| var cut$1 = viewCuttingPoint(cm, from, from, -1); |
| if (cut$1) { |
| display.view = display.view.slice(0, cut$1.index); |
| display.viewTo = cut$1.lineN; |
| } else { |
| resetView(cm); |
| } |
| } else { // Gap in the middle |
| var cutTop = viewCuttingPoint(cm, from, from, -1); |
| var cutBot = viewCuttingPoint(cm, to, to + lendiff, 1); |
| if (cutTop && cutBot) { |
| display.view = display.view.slice(0, cutTop.index) |
| .concat(buildViewArray(cm, cutTop.lineN, cutBot.lineN)) |
| .concat(display.view.slice(cutBot.index)); |
| display.viewTo += lendiff; |
| } else { |
| resetView(cm); |
| } |
| } |
| |
| var ext = display.externalMeasured; |
| if (ext) { |
| if (to < ext.lineN) |
| { ext.lineN += lendiff; } |
| else if (from < ext.lineN + ext.size) |
| { display.externalMeasured = null; } |
| } |
| } |
| |
| // Register a change to a single line. Type must be one of "text", |
| // "gutter", "class", "widget" |
| function regLineChange(cm, line, type) { |
| cm.curOp.viewChanged = true; |
| var display = cm.display, ext = cm.display.externalMeasured; |
| if (ext && line >= ext.lineN && line < ext.lineN + ext.size) |
| { display.externalMeasured = null; } |
| |
| if (line < display.viewFrom || line >= display.viewTo) { return } |
| var lineView = display.view[findViewIndex(cm, line)]; |
| if (lineView.node == null) { return } |
| var arr = lineView.changes || (lineView.changes = []); |
| if (indexOf(arr, type) == -1) { arr.push(type); } |
| } |
| |
| // Clear the view. |
| function resetView(cm) { |
| cm.display.viewFrom = cm.display.viewTo = cm.doc.first; |
| cm.display.view = []; |
| cm.display.viewOffset = 0; |
| } |
| |
| function viewCuttingPoint(cm, oldN, newN, dir) { |
| var index = findViewIndex(cm, oldN), diff, view = cm.display.view; |
| if (!sawCollapsedSpans || newN == cm.doc.first + cm.doc.size) |
| { return {index: index, lineN: newN} } |
| var n = cm.display.viewFrom; |
| for (var i = 0; i < index; i++) |
| { n += view[i].size; } |
| if (n != oldN) { |
| if (dir > 0) { |
| if (index == view.length - 1) { return null } |
| diff = (n + view[index].size) - oldN; |
| index++; |
| } else { |
| diff = n - oldN; |
| } |
| oldN += diff; newN += diff; |
| } |
| while (visualLineNo(cm.doc, newN) != newN) { |
| if (index == (dir < 0 ? 0 : view.length - 1)) { return null } |
| newN += dir * view[index - (dir < 0 ? 1 : 0)].size; |
| index += dir; |
| } |
| return {index: index, lineN: newN} |
| } |
| |
| // Force the view to cover a given range, adding empty view element |
| // or clipping off existing ones as needed. |
| function adjustView(cm, from, to) { |
| var display = cm.display, view = display.view; |
| if (view.length == 0 || from >= display.viewTo || to <= display.viewFrom) { |
| display.view = buildViewArray(cm, from, to); |
| display.viewFrom = from; |
| } else { |
| if (display.viewFrom > from) |
| { display.view = buildViewArray(cm, from, display.viewFrom).concat(display.view); } |
| else if (display.viewFrom < from) |
| { display.view = display.view.slice(findViewIndex(cm, from)); } |
| display.viewFrom = from; |
| if (display.viewTo < to) |
| { display.view = display.view.concat(buildViewArray(cm, display.viewTo, to)); } |
| else if (display.viewTo > to) |
| { display.view = display.view.slice(0, findViewIndex(cm, to)); } |
| } |
| display.viewTo = to; |
| } |
| |
| // Count the number of lines in the view whose DOM representation is |
| // out of date (or nonexistent). |
| function countDirtyView(cm) { |
| var view = cm.display.view, dirty = 0; |
| for (var i = 0; i < view.length; i++) { |
| var lineView = view[i]; |
| if (!lineView.hidden && (!lineView.node || lineView.changes)) { ++dirty; } |
| } |
| return dirty |
| } |
| |
| function updateSelection(cm) { |
| cm.display.input.showSelection(cm.display.input.prepareSelection()); |
| } |
| |
| function prepareSelection(cm, primary) { |
| if ( primary === void 0 ) primary = true; |
| |
| var doc = cm.doc, result = {}; |
| var curFragment = result.cursors = document.createDocumentFragment(); |
| var selFragment = result.selection = document.createDocumentFragment(); |
| |
| for (var i = 0; i < doc.sel.ranges.length; i++) { |
| if (!primary && i == doc.sel.primIndex) { continue } |
| var range$$1 = doc.sel.ranges[i]; |
| if (range$$1.from().line >= cm.display.viewTo || range$$1.to().line < cm.display.viewFrom) { continue } |
| var collapsed = range$$1.empty(); |
| if (collapsed || cm.options.showCursorWhenSelecting) |
| { drawSelectionCursor(cm, range$$1.head, curFragment); } |
| if (!collapsed) |
| { drawSelectionRange(cm, range$$1, selFragment); } |
| } |
| return result |
| } |
| |
| // Draws a cursor for the given range |
| function drawSelectionCursor(cm, head, output) { |
| var pos = cursorCoords(cm, head, "div", null, null, !cm.options.singleCursorHeightPerLine); |
| |
| var cursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor")); |
| cursor.style.left = pos.left + "px"; |
| cursor.style.top = pos.top + "px"; |
| cursor.style.height = Math.max(0, pos.bottom - pos.top) * cm.options.cursorHeight + "px"; |
| |
| if (pos.other) { |
| // Secondary cursor, shown when on a 'jump' in bi-directional text |
| var otherCursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor CodeMirror-secondarycursor")); |
| otherCursor.style.display = ""; |
| otherCursor.style.left = pos.other.left + "px"; |
| otherCursor.style.top = pos.other.top + "px"; |
| otherCursor.style.height = (pos.other.bottom - pos.other.top) * .85 + "px"; |
| } |
| } |
| |
| function cmpCoords(a, b) { return a.top - b.top || a.left - b.left } |
| |
| // Draws the given range as a highlighted selection |
| function drawSelectionRange(cm, range$$1, output) { |
| var display = cm.display, doc = cm.doc; |
| var fragment = document.createDocumentFragment(); |
| var padding = paddingH(cm.display), leftSide = padding.left; |
| var rightSide = Math.max(display.sizerWidth, displayWidth(cm) - display.sizer.offsetLeft) - padding.right; |
| var docLTR = doc.direction == "ltr"; |
| |
| function add(left, top, width, bottom) { |
| if (top < 0) { top = 0; } |
| top = Math.round(top); |
| bottom = Math.round(bottom); |
| fragment.appendChild(elt("div", null, "CodeMirror-selected", ("position: absolute; left: " + left + "px;\n top: " + top + "px; width: " + (width == null ? rightSide - left : width) + "px;\n height: " + (bottom - top) + "px"))); |
| } |
| |
| function drawForLine(line, fromArg, toArg) { |
| var lineObj = getLine(doc, line); |
| var lineLen = lineObj.text.length; |
| var start, end; |
| function coords(ch, bias) { |
| return charCoords(cm, Pos(line, ch), "div", lineObj, bias) |
| } |
| |
| function wrapX(pos, dir, side) { |
| var extent = wrappedLineExtentChar(cm, lineObj, null, pos); |
| var prop = (dir == "ltr") == (side == "after") ? "left" : "right"; |
| var ch = side == "after" ? extent.begin : extent.end - (/\s/.test(lineObj.text.charAt(extent.end - 1)) ? 2 : 1); |
| return coords(ch, prop)[prop] |
| } |
| |
| var order = getOrder(lineObj, doc.direction); |
| iterateBidiSections(order, fromArg || 0, toArg == null ? lineLen : toArg, function (from, to, dir, i) { |
| var ltr = dir == "ltr"; |
| var fromPos = coords(from, ltr ? "left" : "right"); |
| var toPos = coords(to - 1, ltr ? "right" : "left"); |
| |
| var openStart = fromArg == null && from == 0, openEnd = toArg == null && to == lineLen; |
| var first = i == 0, last = !order || i == order.length - 1; |
| if (toPos.top - fromPos.top <= 3) { // Single line |
| var openLeft = (docLTR ? openStart : openEnd) && first; |
| var openRight = (docLTR ? openEnd : openStart) && last; |
| var left = openLeft ? leftSide : (ltr ? fromPos : toPos).left; |
| var right = openRight ? rightSide : (ltr ? toPos : fromPos).right; |
| add(left, fromPos.top, right - left, fromPos.bottom); |
| } else { // Multiple lines |
| var topLeft, topRight, botLeft, botRight; |
| if (ltr) { |
| topLeft = docLTR && openStart && first ? leftSide : fromPos.left; |
| topRight = docLTR ? rightSide : wrapX(from, dir, "before"); |
| botLeft = docLTR ? leftSide : wrapX(to, dir, "after"); |
| botRight = docLTR && openEnd && last ? rightSide : toPos.right; |
| } else { |
| topLeft = !docLTR ? leftSide : wrapX(from, dir, "before"); |
| topRight = !docLTR && openStart && first ? rightSide : fromPos.right; |
| botLeft = !docLTR && openEnd && last ? leftSide : toPos.left; |
| botRight = !docLTR ? rightSide : wrapX(to, dir, "after"); |
| } |
| add(topLeft, fromPos.top, topRight - topLeft, fromPos.bottom); |
| if (fromPos.bottom < toPos.top) { add(leftSide, fromPos.bottom, null, toPos.top); } |
| add(botLeft, toPos.top, botRight - botLeft, toPos.bottom); |
| } |
| |
| if (!start || cmpCoords(fromPos, start) < 0) { start = fromPos; } |
| if (cmpCoords(toPos, start) < 0) { start = toPos; } |
| if (!end || cmpCoords(fromPos, end) < 0) { end = fromPos; } |
| if (cmpCoords(toPos, end) < 0) { end = toPos; } |
| }); |
| return {start: start, end: end} |
| } |
| |
| var sFrom = range$$1.from(), sTo = range$$1.to(); |
| if (sFrom.line == sTo.line) { |
| drawForLine(sFrom.line, sFrom.ch, sTo.ch); |
| } else { |
| var fromLine = getLine(doc, sFrom.line), toLine = getLine(doc, sTo.line); |
| var singleVLine = visualLine(fromLine) == visualLine(toLine); |
| var leftEnd = drawForLine(sFrom.line, sFrom.ch, singleVLine ? fromLine.text.length + 1 : null).end; |
| var rightStart = drawForLine(sTo.line, singleVLine ? 0 : null, sTo.ch).start; |
| if (singleVLine) { |
| if (leftEnd.top < rightStart.top - 2) { |
| add(leftEnd.right, leftEnd.top, null, leftEnd.bottom); |
| add(leftSide, rightStart.top, rightStart.left, rightStart.bottom); |
| } else { |
| add(leftEnd.right, leftEnd.top, rightStart.left - leftEnd.right, leftEnd.bottom); |
| } |
| } |
| if (leftEnd.bottom < rightStart.top) |
| { add(leftSide, leftEnd.bottom, null, rightStart.top); } |
| } |
| |
| output.appendChild(fragment); |
| } |
| |
| // Cursor-blinking |
| function restartBlink(cm) { |
| if (!cm.state.focused) { return } |
| var display = cm.display; |
| clearInterval(display.blinker); |
| var on = true; |
| display.cursorDiv.style.visibility = ""; |
| if (cm.options.cursorBlinkRate > 0) |
| { display.blinker = setInterval(function () { return display.cursorDiv.style.visibility = (on = !on) ? "" : "hidden"; }, |
| cm.options.cursorBlinkRate); } |
| else if (cm.options.cursorBlinkRate < 0) |
| { display.cursorDiv.style.visibility = "hidden"; } |
| } |
| |
| function ensureFocus(cm) { |
| if (!cm.state.focused) { cm.display.input.focus(); onFocus(cm); } |
| } |
| |
| function delayBlurEvent(cm) { |
| cm.state.delayingBlurEvent = true; |
| setTimeout(function () { if (cm.state.delayingBlurEvent) { |
| cm.state.delayingBlurEvent = false; |
| onBlur(cm); |
| } }, 100); |
| } |
| |
| function onFocus(cm, e) { |
| if (cm.state.delayingBlurEvent) { cm.state.delayingBlurEvent = false; } |
| |
| if (cm.options.readOnly == "nocursor") { return } |
| if (!cm.state.focused) { |
| signal(cm, "focus", cm, e); |
| cm.state.focused = true; |
| addClass(cm.display.wrapper, "CodeMirror-focused"); |
| // This test prevents this from firing when a context |
| // menu is closed (since the input reset would kill the |
| // select-all detection hack) |
| if (!cm.curOp && cm.display.selForContextMenu != cm.doc.sel) { |
| cm.display.input.reset(); |
| if (webkit) { setTimeout(function () { return cm.display.input.reset(true); }, 20); } // Issue #1730 |
| } |
| cm.display.input.receivedFocus(); |
| } |
| restartBlink(cm); |
| } |
| function onBlur(cm, e) { |
| if (cm.state.delayingBlurEvent) { return } |
| |
| if (cm.state.focused) { |
| signal(cm, "blur", cm, e); |
| cm.state.focused = false; |
| rmClass(cm.display.wrapper, "CodeMirror-focused"); |
| } |
| clearInterval(cm.display.blinker); |
| setTimeout(function () { if (!cm.state.focused) { cm.display.shift = false; } }, 150); |
| } |
| |
| // Read the actual heights of the rendered lines, and update their |
| // stored heights to match. |
| function updateHeightsInViewport(cm) { |
| var display = cm.display; |
| var prevBottom = display.lineDiv.offsetTop; |
| for (var i = 0; i < display.view.length; i++) { |
| var cur = display.view[i], wrapping = cm.options.lineWrapping; |
| var height = (void 0), width = 0; |
| if (cur.hidden) { continue } |
| if (ie && ie_version < 8) { |
| var bot = cur.node.offsetTop + cur.node.offsetHeight; |
| height = bot - prevBottom; |
| prevBottom = bot; |
| } else { |
| var box = cur.node.getBoundingClientRect(); |
| height = box.bottom - box.top; |
| // Check that lines don't extend past the right of the current |
| // editor width |
| if (!wrapping && cur.text.firstChild) |
| { width = cur.text.firstChild.getBoundingClientRect().right - box.left - 1; } |
| } |
| var diff = cur.line.height - height; |
| if (diff > .005 || diff < -.005) { |
| updateLineHeight(cur.line, height); |
| updateWidgetHeight(cur.line); |
| if (cur.rest) { for (var j = 0; j < cur.rest.length; j++) |
| { updateWidgetHeight(cur.rest[j]); } } |
| } |
| if (width > cm.display.sizerWidth) { |
| var chWidth = Math.ceil(width / charWidth(cm.display)); |
| if (chWidth > cm.display.maxLineLength) { |
| cm.display.maxLineLength = chWidth; |
| cm.display.maxLine = cur.line; |
| cm.display.maxLineChanged = true; |
| } |
| } |
| } |
| } |
| |
| // Read and store the height of line widgets associated with the |
| // given line. |
| function updateWidgetHeight(line) { |
| if (line.widgets) { for (var i = 0; i < line.widgets.length; ++i) { |
| var w = line.widgets[i], parent = w.node.parentNode; |
| if (parent) { w.height = parent.offsetHeight; } |
| } } |
| } |
| |
| // Compute the lines that are visible in a given viewport (defaults |
| // the the current scroll position). viewport may contain top, |
| // height, and ensure (see op.scrollToPos) properties. |
| function visibleLines(display, doc, viewport) { |
| var top = viewport && viewport.top != null ? Math.max(0, viewport.top) : display.scroller.scrollTop; |
| top = Math.floor(top - paddingTop(display)); |
| var bottom = viewport && viewport.bottom != null ? viewport.bottom : top + display.wrapper.clientHeight; |
| |
| var from = lineAtHeight(doc, top), to = lineAtHeight(doc, bottom); |
| // Ensure is a {from: {line, ch}, to: {line, ch}} object, and |
| // forces those lines into the viewport (if possible). |
| if (viewport && viewport.ensure) { |
| var ensureFrom = viewport.ensure.from.line, ensureTo = viewport.ensure.to.line; |
| if (ensureFrom < from) { |
| from = ensureFrom; |
| to = lineAtHeight(doc, heightAtLine(getLine(doc, ensureFrom)) + display.wrapper.clientHeight); |
| } else if (Math.min(ensureTo, doc.lastLine()) >= to) { |
| from = lineAtHeight(doc, heightAtLine(getLine(doc, ensureTo)) - display.wrapper.clientHeight); |
| to = ensureTo; |
| } |
| } |
| return {from: from, to: Math.max(to, from + 1)} |
| } |
| |
| // SCROLLING THINGS INTO VIEW |
| |
| // If an editor sits on the top or bottom of the window, partially |
| // scrolled out of view, this ensures that the cursor is visible. |
| function maybeScrollWindow(cm, rect) { |
| if (signalDOMEvent(cm, "scrollCursorIntoView")) { return } |
| |
| var display = cm.display, box = display.sizer.getBoundingClientRect(), doScroll = null; |
| if (rect.top + box.top < 0) { doScroll = true; } |
| else if (rect.bottom + box.top > (window.innerHeight || document.documentElement.clientHeight)) { doScroll = false; } |
| if (doScroll != null && !phantom) { |
| var scrollNode = elt("div", "\u200b", null, ("position: absolute;\n top: " + (rect.top - display.viewOffset - paddingTop(cm.display)) + "px;\n height: " + (rect.bottom - rect.top + scrollGap(cm) + display.barHeight) + "px;\n left: " + (rect.left) + "px; width: " + (Math.max(2, rect.right - rect.left)) + "px;")); |
| cm.display.lineSpace.appendChild(scrollNode); |
| scrollNode.scrollIntoView(doScroll); |
| cm.display.lineSpace.removeChild(scrollNode); |
| } |
| } |
| |
| // Scroll a given position into view (immediately), verifying that |
| // it actually became visible (as line heights are accurately |
| // measured, the position of something may 'drift' during drawing). |
| function scrollPosIntoView(cm, pos, end, margin) { |
| if (margin == null) { margin = 0; } |
| var rect; |
| if (!cm.options.lineWrapping && pos == end) { |
| // Set pos and end to the cursor positions around the character pos sticks to |
| // If pos.sticky == "before", that is around pos.ch - 1, otherwise around pos.ch |
| // If pos == Pos(_, 0, "before"), pos and end are unchanged |
| pos = pos.ch ? Pos(pos.line, pos.sticky == "before" ? pos.ch - 1 : pos.ch, "after") : pos; |
| end = pos.sticky == "before" ? Pos(pos.line, pos.ch + 1, "before") : pos; |
| } |
| for (var limit = 0; limit < 5; limit++) { |
| var changed = false; |
| var coords = cursorCoords(cm, pos); |
| var endCoords = !end || end == pos ? coords : cursorCoords(cm, end); |
| rect = {left: Math.min(coords.left, endCoords.left), |
| top: Math.min(coords.top, endCoords.top) - margin, |
| right: Math.max(coords.left, endCoords.left), |
| bottom: Math.max(coords.bottom, endCoords.bottom) + margin}; |
| var scrollPos = calculateScrollPos(cm, rect); |
| var startTop = cm.doc.scrollTop, startLeft = cm.doc.scrollLeft; |
| if (scrollPos.scrollTop != null) { |
| updateScrollTop(cm, scrollPos.scrollTop); |
| if (Math.abs(cm.doc.scrollTop - startTop) > 1) { changed = true; } |
| } |
| if (scrollPos.scrollLeft != null) { |
| setScrollLeft(cm, scrollPos.scrollLeft); |
| if (Math.abs(cm.doc.scrollLeft - startLeft) > 1) { changed = true; } |
| } |
| if (!changed) { break } |
| } |
| return rect |
| } |
| |
| // Scroll a given set of coordinates into view (immediately). |
| function scrollIntoView(cm, rect) { |
| var scrollPos = calculateScrollPos(cm, rect); |
| if (scrollPos.scrollTop != null) { updateScrollTop(cm, scrollPos.scrollTop); } |
| if (scrollPos.scrollLeft != null) { setScrollLeft(cm, scrollPos.scrollLeft); } |
| } |
| |
| // Calculate a new scroll position needed to scroll the given |
| // rectangle into view. Returns an object with scrollTop and |
| // scrollLeft properties. When these are undefined, the |
| // vertical/horizontal position does not need to be adjusted. |
| function calculateScrollPos(cm, rect) { |
| var display = cm.display, snapMargin = textHeight(cm.display); |
| if (rect.top < 0) { rect.top = 0; } |
| var screentop = cm.curOp && cm.curOp.scrollTop != null ? cm.curOp.scrollTop : display.scroller.scrollTop; |
| var screen = displayHeight(cm), result = {}; |
| if (rect.bottom - rect.top > screen) { rect.bottom = rect.top + screen; } |
| var docBottom = cm.doc.height + paddingVert(display); |
| var atTop = rect.top < snapMargin, atBottom = rect.bottom > docBottom - snapMargin; |
| if (rect.top < screentop) { |
| result.scrollTop = atTop ? 0 : rect.top; |
| } else if (rect.bottom > screentop + screen) { |
| var newTop = Math.min(rect.top, (atBottom ? docBottom : rect.bottom) - screen); |
| if (newTop != screentop) { result.scrollTop = newTop; } |
| } |
| |
| var screenleft = cm.curOp && cm.curOp.scrollLeft != null ? cm.curOp.scrollLeft : display.scroller.scrollLeft; |
| var screenw = displayWidth(cm) - (cm.options.fixedGutter ? display.gutters.offsetWidth : 0); |
| var tooWide = rect.right - rect.left > screenw; |
| if (tooWide) { rect.right = rect.left + screenw; } |
| if (rect.left < 10) |
| { result.scrollLeft = 0; } |
| else if (rect.left < screenleft) |
| { result.scrollLeft = Math.max(0, rect.left - (tooWide ? 0 : 10)); } |
| else if (rect.right > screenw + screenleft - 3) |
| { result.scrollLeft = rect.right + (tooWide ? 0 : 10) - screenw; } |
| return result |
| } |
| |
| // Store a relative adjustment to the scroll position in the current |
| // operation (to be applied when the operation finishes). |
| function addToScrollTop(cm, top) { |
| if (top == null) { return } |
| resolveScrollToPos(cm); |
| cm.curOp.scrollTop = (cm.curOp.scrollTop == null ? cm.doc.scrollTop : cm.curOp.scrollTop) + top; |
| } |
| |
| // Make sure that at the end of the operation the current cursor is |
| // shown. |
| function ensureCursorVisible(cm) { |
| resolveScrollToPos(cm); |
| var cur = cm.getCursor(); |
| cm.curOp.scrollToPos = {from: cur, to: cur, margin: cm.options.cursorScrollMargin}; |
| } |
| |
| function scrollToCoords(cm, x, y) { |
| if (x != null || y != null) { resolveScrollToPos(cm); } |
| if (x != null) { cm.curOp.scrollLeft = x; } |
| if (y != null) { cm.curOp.scrollTop = y; } |
| } |
| |
| function scrollToRange(cm, range$$1) { |
| resolveScrollToPos(cm); |
| cm.curOp.scrollToPos = range$$1; |
| } |
| |
| // When an operation has its scrollToPos property set, and another |
| // scroll action is applied before the end of the operation, this |
| // 'simulates' scrolling that position into view in a cheap way, so |
| // that the effect of intermediate scroll commands is not ignored. |
| function resolveScrollToPos(cm) { |
| var range$$1 = cm.curOp.scrollToPos; |
| if (range$$1) { |
| cm.curOp.scrollToPos = null; |
| var from = estimateCoords(cm, range$$1.from), to = estimateCoords(cm, range$$1.to); |
| scrollToCoordsRange(cm, from, to, range$$1.margin); |
| } |
| } |
| |
| function scrollToCoordsRange(cm, from, to, margin) { |
| var sPos = calculateScrollPos(cm, { |
| left: Math.min(from.left, to.left), |
| top: Math.min(from.top, to.top) - margin, |
| right: Math.max(from.right, to.right), |
| bottom: Math.max(from.bottom, to.bottom) + margin |
| }); |
| scrollToCoords(cm, sPos.scrollLeft, sPos.scrollTop); |
| } |
| |
| // Sync the scrollable area and scrollbars, ensure the viewport |
| // covers the visible area. |
| function updateScrollTop(cm, val) { |
| if (Math.abs(cm.doc.scrollTop - val) < 2) { return } |
| if (!gecko) { updateDisplaySimple(cm, {top: val}); } |
| setScrollTop(cm, val, true); |
| if (gecko) { updateDisplaySimple(cm); } |
| startWorker(cm, 100); |
| } |
| |
| function setScrollTop(cm, val, forceScroll) { |
| val = Math.min(cm.display.scroller.scrollHeight - cm.display.scroller.clientHeight, val); |
| if (cm.display.scroller.scrollTop == val && !forceScroll) { return } |
| cm.doc.scrollTop = val; |
| cm.display.scrollbars.setScrollTop(val); |
| if (cm.display.scroller.scrollTop != val) { cm.display.scroller.scrollTop = val; } |
| } |
| |
| // Sync scroller and scrollbar, ensure the gutter elements are |
| // aligned. |
| function setScrollLeft(cm, val, isScroller, forceScroll) { |
| val = Math.min(val, cm.display.scroller.scrollWidth - cm.display.scroller.clientWidth); |
| if ((isScroller ? val == cm.doc.scrollLeft : Math.abs(cm.doc.scrollLeft - val) < 2) && !forceScroll) { return } |
| cm.doc.scrollLeft = val; |
| alignHorizontally(cm); |
| if (cm.display.scroller.scrollLeft != val) { cm.display.scroller.scrollLeft = val; } |
| cm.display.scrollbars.setScrollLeft(val); |
| } |
| |
| // SCROLLBARS |
| |
| // Prepare DOM reads needed to update the scrollbars. Done in one |
| // shot to minimize update/measure roundtrips. |
| function measureForScrollbars(cm) { |
| var d = cm.display, gutterW = d.gutters.offsetWidth; |
| var docH = Math.round(cm.doc.height + paddingVert(cm.display)); |
| return { |
| clientHeight: d.scroller.clientHeight, |
| viewHeight: d.wrapper.clientHeight, |
| scrollWidth: d.scroller.scrollWidth, clientWidth: d.scroller.clientWidth, |
| viewWidth: d.wrapper.clientWidth, |
| barLeft: cm.options.fixedGutter ? gutterW : 0, |
| docHeight: docH, |
| scrollHeight: docH + scrollGap(cm) + d.barHeight, |
| nativeBarWidth: d.nativeBarWidth, |
| gutterWidth: gutterW |
| } |
| } |
| |
| var NativeScrollbars = function(place, scroll, cm) { |
| this.cm = cm; |
| var vert = this.vert = elt("div", [elt("div", null, null, "min-width: 1px")], "CodeMirror-vscrollbar"); |
| var horiz = this.horiz = elt("div", [elt("div", null, null, "height: 100%; min-height: 1px")], "CodeMirror-hscrollbar"); |
| vert.tabIndex = horiz.tabIndex = -1; |
| place(vert); place(horiz); |
| |
| on(vert, "scroll", function () { |
| if (vert.clientHeight) { scroll(vert.scrollTop, "vertical"); } |
| }); |
| on(horiz, "scroll", function () { |
| if (horiz.clientWidth) { scroll(horiz.scrollLeft, "horizontal"); } |
| }); |
| |
| this.checkedZeroWidth = false; |
| // Need to set a minimum width to see the scrollbar on IE7 (but must not set it on IE8). |
| if (ie && ie_version < 8) { this.horiz.style.minHeight = this.vert.style.minWidth = "18px"; } |
| }; |
| |
| NativeScrollbars.prototype.update = function (measure) { |
| var needsH = measure.scrollWidth > measure.clientWidth + 1; |
| var needsV = measure.scrollHeight > measure.clientHeight + 1; |
| var sWidth = measure.nativeBarWidth; |
| |
| if (needsV) { |
| this.vert.style.display = "block"; |
| this.vert.style.bottom = needsH ? sWidth + "px" : "0"; |
| var totalHeight = measure.viewHeight - (needsH ? sWidth : 0); |
| // A bug in IE8 can cause this value to be negative, so guard it. |
| this.vert.firstChild.style.height = |
| Math.max(0, measure.scrollHeight - measure.clientHeight + totalHeight) + "px"; |
| } else { |
| this.vert.style.display = ""; |
| this.vert.firstChild.style.height = "0"; |
| } |
| |
| if (needsH) { |
| this.horiz.style.display = "block"; |
| this.horiz.style.right = needsV ? sWidth + "px" : "0"; |
| this.horiz.style.left = measure.barLeft + "px"; |
| var totalWidth = measure.viewWidth - measure.barLeft - (needsV ? sWidth : 0); |
| this.horiz.firstChild.style.width = |
| Math.max(0, measure.scrollWidth - measure.clientWidth + totalWidth) + "px"; |
| } else { |
| this.horiz.style.display = ""; |
| this.horiz.firstChild.style.width = "0"; |
| } |
| |
| if (!this.checkedZeroWidth && measure.clientHeight > 0) { |
| if (sWidth == 0) { this.zeroWidthHack(); } |
| this.checkedZeroWidth = true; |
| } |
| |
| return {right: needsV ? sWidth : 0, bottom: needsH ? sWidth : 0} |
| }; |
| |
| NativeScrollbars.prototype.setScrollLeft = function (pos) { |
| if (this.horiz.scrollLeft != pos) { this.horiz.scrollLeft = pos; } |
| if (this.disableHoriz) { this.enableZeroWidthBar(this.horiz, this.disableHoriz, "horiz"); } |
| }; |
| |
| NativeScrollbars.prototype.setScrollTop = function (pos) { |
| if (this.vert.scrollTop != pos) { this.vert.scrollTop = pos; } |
| if (this.disableVert) { this.enableZeroWidthBar(this.vert, this.disableVert, "vert"); } |
| }; |
| |
| NativeScrollbars.prototype.zeroWidthHack = function () { |
| var w = mac && !mac_geMountainLion ? "12px" : "18px"; |
| this.horiz.style.height = this.vert.style.width = w; |
| this.horiz.style.pointerEvents = this.vert.style.pointerEvents = "none"; |
| this.disableHoriz = new Delayed; |
| this.disableVert = new Delayed; |
| }; |
| |
| NativeScrollbars.prototype.enableZeroWidthBar = function (bar, delay, type) { |
| bar.style.pointerEvents = "auto"; |
| function maybeDisable() { |
| // To find out whether the scrollbar is still visible, we |
| // check whether the element under the pixel in the bottom |
| // right corner of the scrollbar box is the scrollbar box |
| // itself (when the bar is still visible) or its filler child |
| // (when the bar is hidden). If it is still visible, we keep |
| // it enabled, if it's hidden, we disable pointer events. |
| var box = bar.getBoundingClientRect(); |
| var elt$$1 = type == "vert" ? document.elementFromPoint(box.right - 1, (box.top + box.bottom) / 2) |
| : document.elementFromPoint((box.right + box.left) / 2, box.bottom - 1); |
| if (elt$$1 != bar) { bar.style.pointerEvents = "none"; } |
| else { delay.set(1000, maybeDisable); } |
| } |
| delay.set(1000, maybeDisable); |
| }; |
| |
| NativeScrollbars.prototype.clear = function () { |
| var parent = this.horiz.parentNode; |
| parent.removeChild(this.horiz); |
| parent.removeChild(this.vert); |
| }; |
| |
| var NullScrollbars = function () {}; |
| |
| NullScrollbars.prototype.update = function () { return {bottom: 0, right: 0} }; |
| NullScrollbars.prototype.setScrollLeft = function () {}; |
| NullScrollbars.prototype.setScrollTop = function () {}; |
| NullScrollbars.prototype.clear = function () {}; |
| |
| function updateScrollbars(cm, measure) { |
| if (!measure) { measure = measureForScrollbars(cm); } |
| var startWidth = cm.display.barWidth, startHeight = cm.display.barHeight; |
| updateScrollbarsInner(cm, measure); |
| for (var i = 0; i < 4 && startWidth != cm.display.barWidth || startHeight != cm.display.barHeight; i++) { |
| if (startWidth != cm.display.barWidth && cm.options.lineWrapping) |
| { updateHeightsInViewport(cm); } |
| updateScrollbarsInner(cm, measureForScrollbars(cm)); |
| startWidth = cm.display.barWidth; startHeight = cm.display.barHeight; |
| } |
| } |
| |
| // Re-synchronize the fake scrollbars with the actual size of the |
| // content. |
| function updateScrollbarsInner(cm, measure) { |
| var d = cm.display; |
| var sizes = d.scrollbars.update(measure); |
| |
| d.sizer.style.paddingRight = (d.barWidth = sizes.right) + "px"; |
| d.sizer.style.paddingBottom = (d.barHeight = sizes.bottom) + "px"; |
| d.heightForcer.style.borderBottom = sizes.bottom + "px solid transparent"; |
| |
| if (sizes.right && sizes.bottom) { |
| d.scrollbarFiller.style.display = "block"; |
| d.scrollbarFiller.style.height = sizes.bottom + "px"; |
| d.scrollbarFiller.style.width = sizes.right + "px"; |
| } else { d.scrollbarFiller.style.display = ""; } |
| if (sizes.bottom && cm.options.coverGutterNextToScrollbar && cm.options.fixedGutter) { |
| d.gutterFiller.style.display = "block"; |
| d.gutterFiller.style.height = sizes.bottom + "px"; |
| d.gutterFiller.style.width = measure.gutterWidth + "px"; |
| } else { d.gutterFiller.style.display = ""; } |
| } |
| |
| var scrollbarModel = {"native": NativeScrollbars, "null": NullScrollbars}; |
| |
| function initScrollbars(cm) { |
| if (cm.display.scrollbars) { |
| cm.display.scrollbars.clear(); |
| if (cm.display.scrollbars.addClass) |
| { rmClass(cm.display.wrapper, cm.display.scrollbars.addClass); } |
| } |
| |
| cm.display.scrollbars = new scrollbarModel[cm.options.scrollbarStyle](function (node) { |
| cm.display.wrapper.insertBefore(node, cm.display.scrollbarFiller); |
| // Prevent clicks in the scrollbars from killing focus |
| on(node, "mousedown", function () { |
| if (cm.state.focused) { setTimeout(function () { return cm.display.input.focus(); }, 0); } |
| }); |
| node.setAttribute("cm-not-content", "true"); |
| }, function (pos, axis) { |
| if (axis == "horizontal") { setScrollLeft(cm, pos); } |
| else { updateScrollTop(cm, pos); } |
| }, cm); |
| if (cm.display.scrollbars.addClass) |
| { addClass(cm.display.wrapper, cm.display.scrollbars.addClass); } |
| } |
| |
| // Operations are used to wrap a series of changes to the editor |
| // state in such a way that each change won't have to update the |
| // cursor and display (which would be awkward, slow, and |
| // error-prone). Instead, display updates are batched and then all |
| // combined and executed at once. |
| |
| var nextOpId = 0; |
| // Start a new operation. |
| function startOperation(cm) { |
| cm.curOp = { |
| cm: cm, |
| viewChanged: false, // Flag that indicates that lines might need to be redrawn |
| startHeight: cm.doc.height, // Used to detect need to update scrollbar |
| forceUpdate: false, // Used to force a redraw |
| updateInput: 0, // Whether to reset the input textarea |
| typing: false, // Whether this reset should be careful to leave existing text (for compositing) |
| changeObjs: null, // Accumulated changes, for firing change events |
| cursorActivityHandlers: null, // Set of handlers to fire cursorActivity on |
| cursorActivityCalled: 0, // Tracks which cursorActivity handlers have been called already |
| selectionChanged: false, // Whether the selection needs to be redrawn |
| updateMaxLine: false, // Set when the widest line needs to be determined anew |
| scrollLeft: null, scrollTop: null, // Intermediate scroll position, not pushed to DOM yet |
| scrollToPos: null, // Used to scroll to a specific position |
| focus: false, |
| id: ++nextOpId // Unique ID |
| }; |
| pushOperation(cm.curOp); |
| } |
| |
| // Finish an operation, updating the display and signalling delayed events |
| function endOperation(cm) { |
| var op = cm.curOp; |
| if (op) { finishOperation(op, function (group) { |
| for (var i = 0; i < group.ops.length; i++) |
| { group.ops[i].cm.curOp = null; } |
| endOperations(group); |
| }); } |
| } |
| |
| // The DOM updates done when an operation finishes are batched so |
| // that the minimum number of relayouts are required. |
| function endOperations(group) { |
| var ops = group.ops; |
| for (var i = 0; i < ops.length; i++) // Read DOM |
| { endOperation_R1(ops[i]); } |
| for (var i$1 = 0; i$1 < ops.length; i$1++) // Write DOM (maybe) |
| { endOperation_W1(ops[i$1]); } |
| for (var i$2 = 0; i$2 < ops.length; i$2++) // Read DOM |
| { endOperation_R2(ops[i$2]); } |
| for (var i$3 = 0; i$3 < ops.length; i$3++) // Write DOM (maybe) |
| { endOperation_W2(ops[i$3]); } |
| for (var i$4 = 0; i$4 < ops.length; i$4++) // Read DOM |
| { endOperation_finish(ops[i$4]); } |
| } |
| |
| function endOperation_R1(op) { |
| var cm = op.cm, display = cm.display; |
| maybeClipScrollbars(cm); |
| if (op.updateMaxLine) { findMaxLine(cm); } |
| |
| op.mustUpdate = op.viewChanged || op.forceUpdate || op.scrollTop != null || |
| op.scrollToPos && (op.scrollToPos.from.line < display.viewFrom || |
| op.scrollToPos.to.line >= display.viewTo) || |
| display.maxLineChanged && cm.options.lineWrapping; |
| op.update = op.mustUpdate && |
| new DisplayUpdate(cm, op.mustUpdate && {top: op.scrollTop, ensure: op.scrollToPos}, op.forceUpdate); |
| } |
| |
| function endOperation_W1(op) { |
| op.updatedDisplay = op.mustUpdate && updateDisplayIfNeeded(op.cm, op.update); |
| } |
| |
| function endOperation_R2(op) { |
| var cm = op.cm, display = cm.display; |
| if (op.updatedDisplay) { updateHeightsInViewport(cm); } |
| |
| op.barMeasure = measureForScrollbars(cm); |
| |
| // If the max line changed since it was last measured, measure it, |
| // and ensure the document's width matches it. |
| // updateDisplay_W2 will use these properties to do the actual resizing |
| if (display.maxLineChanged && !cm.options.lineWrapping) { |
| op.adjustWidthTo = measureChar(cm, display.maxLine, display.maxLine.text.length).left + 3; |
| cm.display.sizerWidth = op.adjustWidthTo; |
| op.barMeasure.scrollWidth = |
| Math.max(display.scroller.clientWidth, display.sizer.offsetLeft + op.adjustWidthTo + scrollGap(cm) + cm.display.barWidth); |
| op.maxScrollLeft = Math.max(0, display.sizer.offsetLeft + op.adjustWidthTo - displayWidth(cm)); |
| } |
| |
| if (op.updatedDisplay || op.selectionChanged) |
| { op.preparedSelection = display.input.prepareSelection(); } |
| } |
| |
| function endOperation_W2(op) { |
| var cm = op.cm; |
| |
| if (op.adjustWidthTo != null) { |
| cm.display.sizer.style.minWidth = op.adjustWidthTo + "px"; |
| if (op.maxScrollLeft < cm.doc.scrollLeft) |
| { setScrollLeft(cm, Math.min(cm.display.scroller.scrollLeft, op.maxScrollLeft), true); } |
| cm.display.maxLineChanged = false; |
| } |
| |
| var takeFocus = op.focus && op.focus == activeElt(); |
| if (op.preparedSelection) |
| { cm.display.input.showSelection(op.preparedSelection, takeFocus); } |
| if (op.updatedDisplay || op.startHeight != cm.doc.height) |
| { updateScrollbars(cm, op.barMeasure); } |
| if (op.updatedDisplay) |
| { setDocumentHeight(cm, op.barMeasure); } |
| |
| if (op.selectionChanged) { restartBlink(cm); } |
| |
| if (cm.state.focused && op.updateInput) |
| { cm.display.input.reset(op.typing); } |
| if (takeFocus) { ensureFocus(op.cm); } |
| } |
| |
| function endOperation_finish(op) { |
| var cm = op.cm, display = cm.display, doc = cm.doc; |
| |
| if (op.updatedDisplay) { postUpdateDisplay(cm, op.update); } |
| |
| // Abort mouse wheel delta measurement, when scrolling explicitly |
| if (display.wheelStartX != null && (op.scrollTop != null || op.scrollLeft != null || op.scrollToPos)) |
| { display.wheelStartX = display.wheelStartY = null; } |
| |
| // Propagate the scroll position to the actual DOM scroller |
| if (op.scrollTop != null) { setScrollTop(cm, op.scrollTop, op.forceScroll); } |
| |
| if (op.scrollLeft != null) { setScrollLeft(cm, op.scrollLeft, true, true); } |
| // If we need to scroll a specific position into view, do so. |
| if (op.scrollToPos) { |
| var rect = scrollPosIntoView(cm, clipPos(doc, op.scrollToPos.from), |
| clipPos(doc, op.scrollToPos.to), op.scrollToPos.margin); |
| maybeScrollWindow(cm, rect); |
| } |
| |
| // Fire events for markers that are hidden/unidden by editing or |
| // undoing |
| var hidden = op.maybeHiddenMarkers, unhidden = op.maybeUnhiddenMarkers; |
| if (hidden) { for (var i = 0; i < hidden.length; ++i) |
| { if (!hidden[i].lines.length) { signal(hidden[i], "hide"); } } } |
| if (unhidden) { for (var i$1 = 0; i$1 < unhidden.length; ++i$1) |
| { if (unhidden[i$1].lines.length) { signal(unhidden[i$1], "unhide"); } } } |
| |
| if (display.wrapper.offsetHeight) |
| { doc.scrollTop = cm.display.scroller.scrollTop; } |
| |
| // Fire change events, and delayed event handlers |
| if (op.changeObjs) |
| { signal(cm, "changes", cm, op.changeObjs); } |
| if (op.update) |
| { op.update.finish(); } |
| } |
| |
| // Run the given function in an operation |
| function runInOp(cm, f) { |
| if (cm.curOp) { return f() } |
| startOperation(cm); |
| try { return f() } |
| finally { endOperation(cm); } |
| } |
| // Wraps a function in an operation. Returns the wrapped function. |
| function operation(cm, f) { |
| return function() { |
| if (cm.curOp) { return f.apply(cm, arguments) } |
| startOperation(cm); |
| try { return f.apply(cm, arguments) } |
| finally { endOperation(cm); } |
| } |
| } |
| // Used to add methods to editor and doc instances, wrapping them in |
| // operations. |
| function methodOp(f) { |
| return function() { |
| if (this.curOp) { return f.apply(this, arguments) } |
| startOperation(this); |
| try { return f.apply(this, arguments) } |
| finally { endOperation(this); } |
| } |
| } |
| function docMethodOp(f) { |
| return function() { |
| var cm = this.cm; |
| if (!cm || cm.curOp) { return f.apply(this, arguments) } |
| startOperation(cm); |
| try { return f.apply(this, arguments) } |
| finally { endOperation(cm); } |
| } |
| } |
| |
| // HIGHLIGHT WORKER |
| |
| function startWorker(cm, time) { |
| if (cm.doc.highlightFrontier < cm.display.viewTo) |
| { cm.state.highlight.set(time, bind(highlightWorker, cm)); } |
| } |
| |
| function highlightWorker(cm) { |
| var doc = cm.doc; |
| if (doc.highlightFrontier >= cm.display.viewTo) { return } |
| var end = +new Date + cm.options.workTime; |
| var context = getContextBefore(cm, doc.highlightFrontier); |
| var changedLines = []; |
| |
| doc.iter(context.line, Math.min(doc.first + doc.size, cm.display.viewTo + 500), function (line) { |
| if (context.line >= cm.display.viewFrom) { // Visible |
| var oldStyles = line.styles; |
| var resetState = line.text.length > cm.options.maxHighlightLength ? copyState(doc.mode, context.state) : null; |
| var highlighted = highlightLine(cm, line, context, true); |
| if (resetState) { context.state = resetState; } |
| line.styles = highlighted.styles; |
| var oldCls = line.styleClasses, newCls = highlighted.classes; |
| if (newCls) { line.styleClasses = newCls; } |
| else if (oldCls) { line.styleClasses = null; } |
| var ischange = !oldStyles || oldStyles.length != line.styles.length || |
| oldCls != newCls && (!oldCls || !newCls || oldCls.bgClass != newCls.bgClass || oldCls.textClass != newCls.textClass); |
| for (var i = 0; !ischange && i < oldStyles.length; ++i) { ischange = oldStyles[i] != line.styles[i]; } |
| if (ischange) { changedLines.push(context.line); } |
| line.stateAfter = context.save(); |
| context.nextLine(); |
| } else { |
| if (line.text.length <= cm.options.maxHighlightLength) |
| { processLine(cm, line.text, context); } |
| line.stateAfter = context.line % 5 == 0 ? context.save() : null; |
| context.nextLine(); |
| } |
| if (+new Date > end) { |
| startWorker(cm, cm.options.workDelay); |
| return true |
| } |
| }); |
| doc.highlightFrontier = context.line; |
| doc.modeFrontier = Math.max(doc.modeFrontier, context.line); |
| if (changedLines.length) { runInOp(cm, function () { |
| for (var i = 0; i < changedLines.length; i++) |
| { regLineChange(cm, changedLines[i], "text"); } |
| }); } |
| } |
| |
| // DISPLAY DRAWING |
| |
| var DisplayUpdate = function(cm, viewport, force) { |
| var display = cm.display; |
| |
| this.viewport = viewport; |
| // Store some values that we'll need later (but don't want to force a relayout for) |
| this.visible = visibleLines(display, cm.doc, viewport); |
| this.editorIsHidden = !display.wrapper.offsetWidth; |
| this.wrapperHeight = display.wrapper.clientHeight; |
| this.wrapperWidth = display.wrapper.clientWidth; |
| this.oldDisplayWidth = displayWidth(cm); |
| this.force = force; |
| this.dims = getDimensions(cm); |
| this.events = []; |
| }; |
| |
| DisplayUpdate.prototype.signal = function (emitter, type) { |
| if (hasHandler(emitter, type)) |
| { this.events.push(arguments); } |
| }; |
| DisplayUpdate.prototype.finish = function () { |
| for (var i = 0; i < this.events.length; i++) |
| { signal.apply(null, this.events[i]); } |
| }; |
| |
| function maybeClipScrollbars(cm) { |
| var display = cm.display; |
| if (!display.scrollbarsClipped && display.scroller.offsetWidth) { |
| display.nativeBarWidth = display.scroller.offsetWidth - display.scroller.clientWidth; |
| display.heightForcer.style.height = scrollGap(cm) + "px"; |
| display.sizer.style.marginBottom = -display.nativeBarWidth + "px"; |
| display.sizer.style.borderRightWidth = scrollGap(cm) + "px"; |
| display.scrollbarsClipped = true; |
| } |
| } |
| |
| function selectionSnapshot(cm) { |
| if (cm.hasFocus()) { return null } |
| var active = activeElt(); |
| if (!active || !contains(cm.display.lineDiv, active)) { return null } |
| var result = {activeElt: active}; |
| if (window.getSelection) { |
| var sel = window.getSelection(); |
| if (sel.anchorNode && sel.extend && contains(cm.display.lineDiv, sel.anchorNode)) { |
| result.anchorNode = sel.anchorNode; |
| result.anchorOffset = sel.anchorOffset; |
| result.focusNode = sel.focusNode; |
| result.focusOffset = sel.focusOffset; |
| } |
| } |
| return result |
| } |
| |
| function restoreSelection(snapshot) { |
| if (!snapshot || !snapshot.activeElt || snapshot.activeElt == activeElt()) { return } |
| snapshot.activeElt.focus(); |
| if (snapshot.anchorNode && contains(document.body, snapshot.anchorNode) && contains(document.body, snapshot.focusNode)) { |
| var sel = window.getSelection(), range$$1 = document.createRange(); |
| range$$1.setEnd(snapshot.anchorNode, snapshot.anchorOffset); |
| range$$1.collapse(false); |
| sel.removeAllRanges(); |
| sel.addRange(range$$1); |
| sel.extend(snapshot.focusNode, snapshot.focusOffset); |
| } |
| } |
| |
| // Does the actual updating of the line display. Bails out |
| // (returning false) when there is nothing to be done and forced is |
| // false. |
| function updateDisplayIfNeeded(cm, update) { |
| var display = cm.display, doc = cm.doc; |
| |
| if (update.editorIsHidden) { |
| resetView(cm); |
| return false |
| } |
| |
| // Bail out if the visible area is already rendered and nothing changed. |
| if (!update.force && |
| update.visible.from >= display.viewFrom && update.visible.to <= display.viewTo && |
| (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo) && |
| display.renderedView == display.view && countDirtyView(cm) == 0) |
| { return false } |
| |
| if (maybeUpdateLineNumberWidth(cm)) { |
| resetView(cm); |
| update.dims = getDimensions(cm); |
| } |
| |
| // Compute a suitable new viewport (from & to) |
| var end = doc.first + doc.size; |
| var from = Math.max(update.visible.from - cm.options.viewportMargin, doc.first); |
| var to = Math.min(end, update.visible.to + cm.options.viewportMargin); |
| if (display.viewFrom < from && from - display.viewFrom < 20) { from = Math.max(doc.first, display.viewFrom); } |
| if (display.viewTo > to && display.viewTo - to < 20) { to = Math.min(end, display.viewTo); } |
| if (sawCollapsedSpans) { |
| from = visualLineNo(cm.doc, from); |
| to = visualLineEndNo(cm.doc, to); |
| } |
| |
| var different = from != display.viewFrom || to != display.viewTo || |
| display.lastWrapHeight != update.wrapperHeight || display.lastWrapWidth != update.wrapperWidth; |
| adjustView(cm, from, to); |
| |
| display.viewOffset = heightAtLine(getLine(cm.doc, display.viewFrom)); |
| // Position the mover div to align with the current scroll position |
| cm.display.mover.style.top = display.viewOffset + "px"; |
| |
| var toUpdate = countDirtyView(cm); |
| if (!different && toUpdate == 0 && !update.force && display.renderedView == display.view && |
| (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo)) |
| { return false } |
| |
| // For big changes, we hide the enclosing element during the |
| // update, since that speeds up the operations on most browsers. |
| var selSnapshot = selectionSnapshot(cm); |
| if (toUpdate > 4) { display.lineDiv.style.display = "none"; } |
| patchDisplay(cm, display.updateLineNumbers, update.dims); |
| if (toUpdate > 4) { display.lineDiv.style.display = ""; } |
| display.renderedView = display.view; |
| // There might have been a widget with a focused element that got |
| // hidden or updated, if so re-focus it. |
| restoreSelection(selSnapshot); |
| |
| // Prevent selection and cursors from interfering with the scroll |
| // width and height. |
| removeChildren(display.cursorDiv); |
| removeChildren(display.selectionDiv); |
| display.gutters.style.height = display.sizer.style.minHeight = 0; |
| |
| if (different) { |
| display.lastWrapHeight = update.wrapperHeight; |
| display.lastWrapWidth = update.wrapperWidth; |
| startWorker(cm, 400); |
| } |
| |
| display.updateLineNumbers = null; |
| |
| return true |
| } |
| |
| function postUpdateDisplay(cm, update) { |
| var viewport = update.viewport; |
| |
| for (var first = true;; first = false) { |
| if (!first || !cm.options.lineWrapping || update.oldDisplayWidth == displayWidth(cm)) { |
| // Clip forced viewport to actual scrollable area. |
| if (viewport && viewport.top != null) |
| { viewport = {top: Math.min(cm.doc.height + paddingVert(cm.display) - displayHeight(cm), viewport.top)}; } |
| // Updated line heights might result in the drawn area not |
| // actually covering the viewport. Keep looping until it does. |
| update.visible = visibleLines(cm.display, cm.doc, viewport); |
| if (update.visible.from >= cm.display.viewFrom && update.visible.to <= cm.display.viewTo) |
| { break } |
| } |
| if (!updateDisplayIfNeeded(cm, update)) { break } |
| updateHeightsInViewport(cm); |
| var barMeasure = measureForScrollbars(cm); |
| updateSelection(cm); |
| updateScrollbars(cm, barMeasure); |
| setDocumentHeight(cm, barMeasure); |
| update.force = false; |
| } |
| |
| update.signal(cm, "update", cm); |
| if (cm.display.viewFrom != cm.display.reportedViewFrom || cm.display.viewTo != cm.display.reportedViewTo) { |
| update.signal(cm, "viewportChange", cm, cm.display.viewFrom, cm.display.viewTo); |
| cm.display.reportedViewFrom = cm.display.viewFrom; cm.display.reportedViewTo = cm.display.viewTo; |
| } |
| } |
| |
| function updateDisplaySimple(cm, viewport) { |
| var update = new DisplayUpdate(cm, viewport); |
| if (updateDisplayIfNeeded(cm, update)) { |
| updateHeightsInViewport(cm); |
| postUpdateDisplay(cm, update); |
| var barMeasure = measureForScrollbars(cm); |
| updateSelection(cm); |
| updateScrollbars(cm, barMeasure); |
| setDocumentHeight(cm, barMeasure); |
| update.finish(); |
| } |
| } |
| |
| // Sync the actual display DOM structure with display.view, removing |
| // nodes for lines that are no longer in view, and creating the ones |
| // that are not there yet, and updating the ones that are out of |
| // date. |
| function patchDisplay(cm, updateNumbersFrom, dims) { |
| var display = cm.display, lineNumbers = cm.options.lineNumbers; |
| var container = display.lineDiv, cur = container.firstChild; |
| |
| function rm(node) { |
| var next = node.nextSibling; |
| // Works around a throw-scroll bug in OS X Webkit |
| if (webkit && mac && cm.display.currentWheelTarget == node) |
| { node.style.display = "none"; } |
| else |
| { node.parentNode.removeChild(node); } |
| return next |
| } |
| |
| var view = display.view, lineN = display.viewFrom; |
| // Loop over the elements in the view, syncing cur (the DOM nodes |
| // in display.lineDiv) with the view as we go. |
| for (var i = 0; i < view.length; i++) { |
| var lineView = view[i]; |
| if (lineView.hidden) ; else if (!lineView.node || lineView.node.parentNode != container) { // Not drawn yet |
| var node = buildLineElement(cm, lineView, lineN, dims); |
| container.insertBefore(node, cur); |
| } else { // Already drawn |
| while (cur != lineView.node) { cur = rm(cur); } |
| var updateNumber = lineNumbers && updateNumbersFrom != null && |
| updateNumbersFrom <= lineN && lineView.lineNumber; |
| if (lineView.changes) { |
| if (indexOf(lineView.changes, "gutter") > -1) { updateNumber = false; } |
| updateLineForChanges(cm, lineView, lineN, dims); |
| } |
| if (updateNumber) { |
| removeChildren(lineView.lineNumber); |
| lineView.lineNumber.appendChild(document.createTextNode(lineNumberFor(cm.options, lineN))); |
| } |
| cur = lineView.node.nextSibling; |
| } |
| lineN += lineView.size; |
| } |
| while (cur) { cur = rm(cur); } |
| } |
| |
| function updateGutterSpace(display) { |
| var width = display.gutters.offsetWidth; |
| display.sizer.style.marginLeft = width + "px"; |
| } |
| |
| function setDocumentHeight(cm, measure) { |
| cm.display.sizer.style.minHeight = measure.docHeight + "px"; |
| cm.display.heightForcer.style.top = measure.docHeight + "px"; |
| cm.display.gutters.style.height = (measure.docHeight + cm.display.barHeight + scrollGap(cm)) + "px"; |
| } |
| |
| // Re-align line numbers and gutter marks to compensate for |
| // horizontal scrolling. |
| function alignHorizontally(cm) { |
| var display = cm.display, view = display.view; |
| if (!display.alignWidgets && (!display.gutters.firstChild || !cm.options.fixedGutter)) { return } |
| var comp = compensateForHScroll(display) - display.scroller.scrollLeft + cm.doc.scrollLeft; |
| var gutterW = display.gutters.offsetWidth, left = comp + "px"; |
| for (var i = 0; i < view.length; i++) { if (!view[i].hidden) { |
| if (cm.options.fixedGutter) { |
| if (view[i].gutter) |
| { view[i].gutter.style.left = left; } |
| if (view[i].gutterBackground) |
| { view[i].gutterBackground.style.left = left; } |
| } |
| var align = view[i].alignable; |
| if (align) { for (var j = 0; j < align.length; j++) |
| { align[j].style.left = left; } } |
| } } |
| if (cm.options.fixedGutter) |
| { display.gutters.style.left = (comp + gutterW) + "px"; } |
| } |
| |
| // Used to ensure that the line number gutter is still the right |
| // size for the current document size. Returns true when an update |
| // is needed. |
| function maybeUpdateLineNumberWidth(cm) { |
| if (!cm.options.lineNumbers) { return false } |
| var doc = cm.doc, last = lineNumberFor(cm.options, doc.first + doc.size - 1), display = cm.display; |
| if (last.length != display.lineNumChars) { |
| var test = display.measure.appendChild(elt("div", [elt("div", last)], |
| "CodeMirror-linenumber CodeMirror-gutter-elt")); |
| var innerW = test.firstChild.offsetWidth, padding = test.offsetWidth - innerW; |
| display.lineGutter.style.width = ""; |
| display.lineNumInnerWidth = Math.max(innerW, display.lineGutter.offsetWidth - padding) + 1; |
| display.lineNumWidth = display.lineNumInnerWidth + padding; |
| display.lineNumChars = display.lineNumInnerWidth ? last.length : -1; |
| display.lineGutter.style.width = display.lineNumWidth + "px"; |
| updateGutterSpace(cm.display); |
| return true |
| } |
| return false |
| } |
| |
| function getGutters(gutters, lineNumbers) { |
| var result = [], sawLineNumbers = false; |
| for (var i = 0; i < gutters.length; i++) { |
| var name = gutters[i], style = null; |
| if (typeof name != "string") { style = name.style; name = name.className; } |
| if (name == "CodeMirror-linenumbers") { |
| if (!lineNumbers) { continue } |
| else { sawLineNumbers = true; } |
| } |
| result.push({className: name, style: style}); |
| } |
| if (lineNumbers && !sawLineNumbers) { result.push({className: "CodeMirror-linenumbers", style: null}); } |
| return result |
| } |
| |
| // Rebuild the gutter elements, ensure the margin to the left of the |
| // code matches their width. |
| function renderGutters(display) { |
| var gutters = display.gutters, specs = display.gutterSpecs; |
| removeChildren(gutters); |
| display.lineGutter = null; |
| for (var i = 0; i < specs.length; ++i) { |
| var ref = specs[i]; |
| var className = ref.className; |
| var style = ref.style; |
| var gElt = gutters.appendChild(elt("div", null, "CodeMirror-gutter " + className)); |
| if (style) { gElt.style.cssText = style; } |
| if (className == "CodeMirror-linenumbers") { |
| display.lineGutter = gElt; |
| gElt.style.width = (display.lineNumWidth || 1) + "px"; |
| } |
| } |
| gutters.style.display = specs.length ? "" : "none"; |
| updateGutterSpace(display); |
| } |
| |
| function updateGutters(cm) { |
| renderGutters(cm.display); |
| regChange(cm); |
| alignHorizontally(cm); |
| } |
| |
| // The display handles the DOM integration, both for input reading |
| // and content drawing. It holds references to DOM nodes and |
| // display-related state. |
| |
| function Display(place, doc, input, options) { |
| var d = this; |
| this.input = input; |
| |
| // Covers bottom-right square when both scrollbars are present. |
| d.scrollbarFiller = elt("div", null, "CodeMirror-scrollbar-filler"); |
| d.scrollbarFiller.setAttribute("cm-not-content", "true"); |
| // Covers bottom of gutter when coverGutterNextToScrollbar is on |
| // and h scrollbar is present. |
| d.gutterFiller = elt("div", null, "CodeMirror-gutter-filler"); |
| d.gutterFiller.setAttribute("cm-not-content", "true"); |
| // Will contain the actual code, positioned to cover the viewport. |
| d.lineDiv = eltP("div", null, "CodeMirror-code"); |
| // Elements are added to these to represent selection and cursors. |
| d.selectionDiv = elt("div", null, null, "position: relative; z-index: 1"); |
| d.cursorDiv = elt("div", null, "CodeMirror-cursors"); |
| // A visibility: hidden element used to find the size of things. |
| d.measure = elt("div", null, "CodeMirror-measure"); |
| // When lines outside of the viewport are measured, they are drawn in this. |
| d.lineMeasure = elt("div", null, "CodeMirror-measure"); |
| // Wraps everything that needs to exist inside the vertically-padded coordinate system |
| d.lineSpace = eltP("div", [d.measure, d.lineMeasure, d.selectionDiv, d.cursorDiv, d.lineDiv], |
| null, "position: relative; outline: none"); |
| var lines = eltP("div", [d.lineSpace], "CodeMirror-lines"); |
| // Moved around its parent to cover visible view. |
| d.mover = elt("div", [lines], null, "position: relative"); |
| // Set to the height of the document, allowing scrolling. |
| d.sizer = elt("div", [d.mover], "CodeMirror-sizer"); |
| d.sizerWidth = null; |
| // Behavior of elts with overflow: auto and padding is |
| // inconsistent across browsers. This is used to ensure the |
| // scrollable area is big enough. |
| d.heightForcer = elt("div", null, null, "position: absolute; height: " + scrollerGap + "px; width: 1px;"); |
| // Will contain the gutters, if any. |
| d.gutters = elt("div", null, "CodeMirror-gutters"); |
| d.lineGutter = null; |
| // Actual scrollable element. |
| d.scroller = elt("div", [d.sizer, d.heightForcer, d.gutters], "CodeMirror-scroll"); |
| d.scroller.setAttribute("tabIndex", "-1"); |
| // The element in which the editor lives. |
| d.wrapper = elt("div", [d.scrollbarFiller, d.gutterFiller, d.scroller], "CodeMirror"); |
| |
| // Work around IE7 z-index bug (not perfect, hence IE7 not really being supported) |
| if (ie && ie_version < 8) { d.gutters.style.zIndex = -1; d.scroller.style.paddingRight = 0; } |
| if (!webkit && !(gecko && mobile)) { d.scroller.draggable = true; } |
| |
| if (place) { |
| if (place.appendChild) { place.appendChild(d.wrapper); } |
| else { place(d.wrapper); } |
| } |
| |
| // Current rendered range (may be bigger than the view window). |
| d.viewFrom = d.viewTo = doc.first; |
| d.reportedViewFrom = d.reportedViewTo = doc.first; |
| // Information about the rendered lines. |
| d.view = []; |
| d.renderedView = null; |
| // Holds info about a single rendered line when it was rendered |
| // for measurement, while not in view. |
| d.externalMeasured = null; |
| // Empty space (in pixels) above the view |
| d.viewOffset = 0; |
| d.lastWrapHeight = d.lastWrapWidth = 0; |
| d.updateLineNumbers = null; |
| |
| d.nativeBarWidth = d.barHeight = d.barWidth = 0; |
| d.scrollbarsClipped = false; |
| |
| // Used to only resize the line number gutter when necessary (when |
| // the amount of lines crosses a boundary that makes its width change) |
| d.lineNumWidth = d.lineNumInnerWidth = d.lineNumChars = null; |
| // Set to true when a non-horizontal-scrolling line widget is |
| // added. As an optimization, line widget aligning is skipped when |
| // this is false. |
| d.alignWidgets = false; |
| |
| d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null; |
| |
| // Tracks the maximum line length so that the horizontal scrollbar |
| // can be kept static when scrolling. |
| d.maxLine = null; |
| d.maxLineLength = 0; |
| d.maxLineChanged = false; |
| |
| // Used for measuring wheel scrolling granularity |
| d.wheelDX = d.wheelDY = d.wheelStartX = d.wheelStartY = null; |
| |
| // True when shift is held down. |
| d.shift = false; |
| |
| // Used to track whether anything happened since the context menu |
| // was opened. |
| d.selForContextMenu = null; |
| |
| d.activeTouch = null; |
| |
| d.gutterSpecs = getGutters(options.gutters, options.lineNumbers); |
| renderGutters(d); |
| |
| input.init(d); |
| } |
| |
| // Since the delta values reported on mouse wheel events are |
| // unstandardized between browsers and even browser versions, and |
| // generally horribly unpredictable, this code starts by measuring |
| // the scroll effect that the first few mouse wheel events have, |
| // and, from that, detects the way it can convert deltas to pixel |
| // offsets afterwards. |
| // |
| // The reason we want to know the amount a wheel event will scroll |
| // is that it gives us a chance to update the display before the |
| // actual scrolling happens, reducing flickering. |
| |
| var wheelSamples = 0, wheelPixelsPerUnit = null; |
| // Fill in a browser-detected starting value on browsers where we |
| // know one. These don't have to be accurate -- the result of them |
| // being wrong would just be a slight flicker on the first wheel |
| // scroll (if it is large enough). |
| if (ie) { wheelPixelsPerUnit = -.53; } |
| else if (gecko) { wheelPixelsPerUnit = 15; } |
| else if (chrome) { wheelPixelsPerUnit = -.7; } |
| else if (safari) { wheelPixelsPerUnit = -1/3; } |
| |
| function wheelEventDelta(e) { |
| var dx = e.wheelDeltaX, dy = e.wheelDeltaY; |
| if (dx == null && e.detail && e.axis == e.HORIZONTAL_AXIS) { dx = e.detail; } |
| if (dy == null && e.detail && e.axis == e.VERTICAL_AXIS) { dy = e.detail; } |
| else if (dy == null) { dy = e.wheelDelta; } |
| return {x: dx, y: dy} |
| } |
| function wheelEventPixels(e) { |
| var delta = wheelEventDelta(e); |
| delta.x *= wheelPixelsPerUnit; |
| delta.y *= wheelPixelsPerUnit; |
| return delta |
| } |
| |
| function onScrollWheel(cm, e) { |
| var delta = wheelEventDelta(e), dx = delta.x, dy = delta.y; |
| |
| var display = cm.display, scroll = display.scroller; |
| // Quit if there's nothing to scroll here |
| var canScrollX = scroll.scrollWidth > scroll.clientWidth; |
| var canScrollY = scroll.scrollHeight > scroll.clientHeight; |
| if (!(dx && canScrollX || dy && canScrollY)) { return } |
| |
| // Webkit browsers on OS X abort momentum scrolls when the target |
| // of the scroll event is removed from the scrollable element. |
| // This hack (see related code in patchDisplay) makes sure the |
| // element is kept around. |
| if (dy && mac && webkit) { |
| outer: for (var cur = e.target, view = display.view; cur != scroll; cur = cur.parentNode) { |
| for (var i = 0; i < view.length; i++) { |
| if (view[i].node == cur) { |
| cm.display.currentWheelTarget = cur; |
| break outer |
| } |
| } |
| } |
| } |
| |
| // On some browsers, horizontal scrolling will cause redraws to |
| // happen before the gutter has been realigned, causing it to |
| // wriggle around in a most unseemly way. When we have an |
| // estimated pixels/delta value, we just handle horizontal |
| // scrolling entirely here. It'll be slightly off from native, but |
| // better than glitching out. |
| if (dx && !gecko && !presto && wheelPixelsPerUnit != null) { |
| if (dy && canScrollY) |
| { updateScrollTop(cm, Math.max(0, scroll.scrollTop + dy * wheelPixelsPerUnit)); } |
| setScrollLeft(cm, Math.max(0, scroll.scrollLeft + dx * wheelPixelsPerUnit)); |
| // Only prevent default scrolling if vertical scrolling is |
| // actually possible. Otherwise, it causes vertical scroll |
| // jitter on OSX trackpads when deltaX is small and deltaY |
| // is large (issue #3579) |
| if (!dy || (dy && canScrollY)) |
| { e_preventDefault(e); } |
| display.wheelStartX = null; // Abort measurement, if in progress |
| return |
| } |
| |
| // 'Project' the visible viewport to cover the area that is being |
| // scrolled into view (if we know enough to estimate it). |
| if (dy && wheelPixelsPerUnit != null) { |
| var pixels = dy * wheelPixelsPerUnit; |
| var top = cm.doc.scrollTop, bot = top + display.wrapper.clientHeight; |
| if (pixels < 0) { top = Math.max(0, top + pixels - 50); } |
| else { bot = Math.min(cm.doc.height, bot + pixels + 50); } |
| updateDisplaySimple(cm, {top: top, bottom: bot}); |
| } |
| |
| if (wheelSamples < 20) { |
| if (display.wheelStartX == null) { |
| display.wheelStartX = scroll.scrollLeft; display.wheelStartY = scroll.scrollTop; |
| display.wheelDX = dx; display.wheelDY = dy; |
| setTimeout(function () { |
| if (display.wheelStartX == null) { return } |
| var movedX = scroll.scrollLeft - display.wheelStartX; |
| var movedY = scroll.scrollTop - display.wheelStartY; |
| var sample = (movedY && display.wheelDY && movedY / display.wheelDY) || |
| (movedX && display.wheelDX && movedX / display.wheelDX); |
| display.wheelStartX = display.wheelStartY = null; |
| if (!sample) { return } |
| wheelPixelsPerUnit = (wheelPixelsPerUnit * wheelSamples + sample) / (wheelSamples + 1); |
| ++wheelSamples; |
| }, 200); |
| } else { |
| display.wheelDX += dx; display.wheelDY += dy; |
| } |
| } |
| } |
| |
| // Selection objects are immutable. A new one is created every time |
| // the selection changes. A selection is one or more non-overlapping |
| // (and non-touching) ranges, sorted, and an integer that indicates |
| // which one is the primary selection (the one that's scrolled into |
| // view, that getCursor returns, etc). |
| var Selection = function(ranges, primIndex) { |
| this.ranges = ranges; |
| this.primIndex = primIndex; |
| }; |
| |
| Selection.prototype.primary = function () { return this.ranges[this.primIndex] }; |
| |
| Selection.prototype.equals = function (other) { |
| if (other == this) { return true } |
| if (other.primIndex != this.primIndex || other.ranges.length != this.ranges.length) { return false } |
| for (var i = 0; i < this.ranges.length; i++) { |
| var here = this.ranges[i], there = other.ranges[i]; |
| if (!equalCursorPos(here.anchor, there.anchor) || !equalCursorPos(here.head, there.head)) { return false } |
| } |
| return true |
| }; |
| |
| Selection.prototype.deepCopy = function () { |
| var out = []; |
| for (var i = 0; i < this.ranges.length; i++) |
| { out[i] = new Range(copyPos(this.ranges[i].anchor), copyPos(this.ranges[i].head)); } |
| return new Selection(out, this.primIndex) |
| }; |
| |
| Selection.prototype.somethingSelected = function () { |
| for (var i = 0; i < this.ranges.length; i++) |
| { if (!this.ranges[i].empty()) { return true } } |
| return false |
| }; |
| |
| Selection.prototype.contains = function (pos, end) { |
| if (!end) { end = pos; } |
| for (var i = 0; i < this.ranges.length; i++) { |
| var range = this.ranges[i]; |
| if (cmp(end, range.from()) >= 0 && cmp(pos, range.to()) <= 0) |
| { return i } |
| } |
| return -1 |
| }; |
| |
| var Range = function(anchor, head) { |
| this.anchor = anchor; this.head = head; |
| }; |
| |
| Range.prototype.from = function () { return minPos(this.anchor, this.head) }; |
| Range.prototype.to = function () { return maxPos(this.anchor, this.head) }; |
| Range.prototype.empty = function () { return this.head.line == this.anchor.line && this.head.ch == this.anchor.ch }; |
| |
| // Take an unsorted, potentially overlapping set of ranges, and |
| // build a selection out of it. 'Consumes' ranges array (modifying |
| // it). |
| function normalizeSelection(cm, ranges, primIndex) { |
| var mayTouch = cm && cm.options.selectionsMayTouch; |
| var prim = ranges[primIndex]; |
| ranges.sort(function (a, b) { return cmp(a.from(), b.from()); }); |
| primIndex = indexOf(ranges, prim); |
| for (var i = 1; i < ranges.length; i++) { |
| var cur = ranges[i], prev = ranges[i - 1]; |
| var diff = cmp(prev.to(), cur.from()); |
| if (mayTouch && !cur.empty() ? diff > 0 : diff >= 0) { |
| var from = minPos(prev.from(), cur.from()), to = maxPos(prev.to(), cur.to()); |
| var inv = prev.empty() ? cur.from() == cur.head : prev.from() == prev.head; |
| if (i <= primIndex) { --primIndex; } |
| ranges.splice(--i, 2, new Range(inv ? to : from, inv ? from : to)); |
| } |
| } |
| return new Selection(ranges, primIndex) |
| } |
| |
| function simpleSelection(anchor, head) { |
| return new Selection([new Range(anchor, head || anchor)], 0) |
| } |
| |
| // Compute the position of the end of a change (its 'to' property |
| // refers to the pre-change end). |
| function changeEnd(change) { |
| if (!change.text) { return change.to } |
| return Pos(change.from.line + change.text.length - 1, |
| lst(change.text).length + (change.text.length == 1 ? change.from.ch : 0)) |
| } |
| |
| // Adjust a position to refer to the post-change position of the |
| // same text, or the end of the change if the change covers it. |
| function adjustForChange(pos, change) { |
| if (cmp(pos, change.from) < 0) { return pos } |
| if (cmp(pos, change.to) <= 0) { return changeEnd(change) } |
| |
| var line = pos.line + change.text.length - (change.to.line - change.from.line) - 1, ch = pos.ch; |
| if (pos.line == change.to.line) { ch += changeEnd(change).ch - change.to.ch; } |
| return Pos(line, ch) |
| } |
| |
| function computeSelAfterChange(doc, change) { |
| var out = []; |
| for (var i = 0; i < doc.sel.ranges.length; i++) { |
| var range = doc.sel.ranges[i]; |
| out.push(new Range(adjustForChange(range.anchor, change), |
| adjustForChange(range.head, change))); |
| } |
| return normalizeSelection(doc.cm, out, doc.sel.primIndex) |
| } |
| |
| function offsetPos(pos, old, nw) { |
| if (pos.line == old.line) |
| { return Pos(nw.line, pos.ch - old.ch + nw.ch) } |
| else |
| { return Pos(nw.line + (pos.line - old.line), pos.ch) } |
| } |
| |
| // Used by replaceSelections to allow moving the selection to the |
| // start or around the replaced test. Hint may be "start" or "around". |
| function computeReplacedSel(doc, changes, hint) { |
| var out = []; |
| var oldPrev = Pos(doc.first, 0), newPrev = oldPrev; |
| for (var i = 0; i < changes.length; i++) { |
| var change = changes[i]; |
| var from = offsetPos(change.from, oldPrev, newPrev); |
| var to = offsetPos(changeEnd(change), oldPrev, newPrev); |
| oldPrev = change.to; |
| newPrev = to; |
| if (hint == "around") { |
| var range = doc.sel.ranges[i], inv = cmp(range.head, range.anchor) < 0; |
| out[i] = new Range(inv ? to : from, inv ? from : to); |
| } else { |
| out[i] = new Range(from, from); |
| } |
| } |
| return new Selection(out, doc.sel.primIndex) |
| } |
| |
| // Used to get the editor into a consistent state again when options change. |
| |
| function loadMode(cm) { |
| cm.doc.mode = getMode(cm.options, cm.doc.modeOption); |
| resetModeState(cm); |
| } |
| |
| function resetModeState(cm) { |
| cm.doc.iter(function (line) { |
| if (line.stateAfter) { line.stateAfter = null; } |
| if (line.styles) { line.styles = null; } |
| }); |
| cm.doc.modeFrontier = cm.doc.highlightFrontier = cm.doc.first; |
| startWorker(cm, 100); |
| cm.state.modeGen++; |
| if (cm.curOp) { regChange(cm); } |
| } |
| |
| // DOCUMENT DATA STRUCTURE |
| |
| // By default, updates that start and end at the beginning of a line |
| // are treated specially, in order to make the association of line |
| // widgets and marker elements with the text behave more intuitive. |
| function isWholeLineUpdate(doc, change) { |
| return change.from.ch == 0 && change.to.ch == 0 && lst(change.text) == "" && |
| (!doc.cm || doc.cm.options.wholeLineUpdateBefore) |
| } |
| |
| // Perform a change on the document data structure. |
| function updateDoc(doc, change, markedSpans, estimateHeight$$1) { |
| function spansFor(n) {return markedSpans ? markedSpans[n] : null} |
| function update(line, text, spans) { |
| updateLine(line, text, spans, estimateHeight$$1); |
| signalLater(line, "change", line, change); |
| } |
| function linesFor(start, end) { |
| var result = []; |
| for (var i = start; i < end; ++i) |
| { result.push(new Line(text[i], spansFor(i), estimateHeight$$1)); } |
| return result |
| } |
| |
| var from = change.from, to = change.to, text = change.text; |
| var firstLine = getLine(doc, from.line), lastLine = getLine(doc, to.line); |
| var lastText = lst(text), lastSpans = spansFor(text.length - 1), nlines = to.line - from.line; |
| |
| // Adjust the line structure |
| if (change.full) { |
| doc.insert(0, linesFor(0, text.length)); |
| doc.remove(text.length, doc.size - text.length); |
| } else if (isWholeLineUpdate(doc, change)) { |
| // This is a whole-line replace. Treated specially to make |
| // sure line objects move the way they are supposed to. |
| var added = linesFor(0, text.length - 1); |
| update(lastLine, lastLine.text, lastSpans); |
| if (nlines) { doc.remove(from.line, nlines); } |
| if (added.length) { doc.insert(from.line, added); } |
| } else if (firstLine == lastLine) { |
| if (text.length == 1) { |
| update(firstLine, firstLine.text.slice(0, from.ch) + lastText + firstLine.text.slice(to.ch), lastSpans); |
| } else { |
| var added$1 = linesFor(1, text.length - 1); |
| added$1.push(new Line(lastText + firstLine.text.slice(to.ch), lastSpans, estimateHeight$$1)); |
| update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0)); |
| doc.insert(from.line + 1, added$1); |
| } |
| } else if (text.length == 1) { |
| update(firstLine, firstLine.text.slice(0, from.ch) + text[0] + lastLine.text.slice(to.ch), spansFor(0)); |
| doc.remove(from.line + 1, nlines); |
| } else { |
| update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0)); |
| update(lastLine, lastText + lastLine.text.slice(to.ch), lastSpans); |
| var added$2 = linesFor(1, text.length - 1); |
| if (nlines > 1) { doc.remove(from.line + 1, nlines - 1); } |
| doc.insert(from.line + 1, added$2); |
| } |
| |
| signalLater(doc, "change", doc, change); |
| } |
| |
| // Call f for all linked documents. |
| function linkedDocs(doc, f, sharedHistOnly) { |
| function propagate(doc, skip, sharedHist) { |
| if (doc.linked) { for (var i = 0; i < doc.linked.length; ++i) { |
| var rel = doc.linked[i]; |
| if (rel.doc == skip) { continue } |
| var shared = sharedHist && rel.sharedHist; |
| if (sharedHistOnly && !shared) { continue } |
| f(rel.doc, shared); |
| propagate(rel.doc, doc, shared); |
| } } |
| } |
| propagate(doc, null, true); |
| } |
| |
| // Attach a document to an editor. |
| function attachDoc(cm, doc) { |
| if (doc.cm) { throw new Error("This document is already in use.") } |
| cm.doc = doc; |
| doc.cm = cm; |
| estimateLineHeights(cm); |
| loadMode(cm); |
| setDirectionClass(cm); |
| if (!cm.options.lineWrapping) { findMaxLine(cm); } |
| cm.options.mode = doc.modeOption; |
| regChange(cm); |
| } |
| |
| function setDirectionClass(cm) { |
| (cm.doc.direction == "rtl" ? addClass : rmClass)(cm.display.lineDiv, "CodeMirror-rtl"); |
| } |
| |
| function directionChanged(cm) { |
| runInOp(cm, function () { |
| setDirectionClass(cm); |
| regChange(cm); |
| }); |
| } |
| |
| function History(startGen) { |
| // Arrays of change events and selections. Doing something adds an |
| // event to done and clears undo. Undoing moves events from done |
| // to undone, redoing moves them in the other direction. |
| this.done = []; this.undone = []; |
| this.undoDepth = Infinity; |
| // Used to track when changes can be merged into a single undo |
| // event |
| this.lastModTime = this.lastSelTime = 0; |
| this.lastOp = this.lastSelOp = null; |
| this.lastOrigin = this.lastSelOrigin = null; |
| // Used by the isClean() method |
| this.generation = this.maxGeneration = startGen || 1; |
| } |
| |
| // Create a history change event from an updateDoc-style change |
| // object. |
| function historyChangeFromChange(doc, change) { |
| var histChange = {from: copyPos(change.from), to: changeEnd(change), text: getBetween(doc, change.from, change.to)}; |
| attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1); |
| linkedDocs(doc, function (doc) { return attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1); }, true); |
| return histChange |
| } |
| |
| // Pop all selection events off the end of a history array. Stop at |
| // a change event. |
| function clearSelectionEvents(array) { |
| while (array.length) { |
| var last = lst(array); |
| if (last.ranges) { array.pop(); } |
| else { break } |
| } |
| } |
| |
| // Find the top change event in the history. Pop off selection |
| // events that are in the way. |
| function lastChangeEvent(hist, force) { |
| if (force) { |
| clearSelectionEvents(hist.done); |
| return lst(hist.done) |
| } else if (hist.done.length && !lst(hist.done).ranges) { |
| return lst(hist.done) |
| } else if (hist.done.length > 1 && !hist.done[hist.done.length - 2].ranges) { |
| hist.done.pop(); |
| return lst(hist.done) |
| } |
| } |
| |
| // Register a change in the history. Merges changes that are within |
| // a single operation, or are close together with an origin that |
| // allows merging (starting with "+") into a single event. |
| function addChangeToHistory(doc, change, selAfter, opId) { |
| var hist = doc.history; |
| hist.undone.length = 0; |
| var time = +new Date, cur; |
| var last; |
| |
| if ((hist.lastOp == opId || |
| hist.lastOrigin == change.origin && change.origin && |
| ((change.origin.charAt(0) == "+" && hist.lastModTime > time - (doc.cm ? doc.cm.options.historyEventDelay : 500)) || |
| change.origin.charAt(0) == "*")) && |
| (cur = lastChangeEvent(hist, hist.lastOp == opId))) { |
| // Merge this change into the last event |
| last = lst(cur.changes); |
| if (cmp(change.from, change.to) == 0 && cmp(change.from, last.to) == 0) { |
| // Optimized case for simple insertion -- don't want to add |
| // new changesets for every character typed |
| last.to = changeEnd(change); |
| } else { |
| // Add new sub-event |
| cur.changes.push(historyChangeFromChange(doc, change)); |
| } |
| } else { |
| // Can not be merged, start a new event. |
| var before = lst(hist.done); |
| if (!before || !before.ranges) |
| { pushSelectionToHistory(doc.sel, hist.done); } |
| cur = {changes: [historyChangeFromChange(doc, change)], |
| generation: hist.generation}; |
| hist.done.push(cur); |
| while (hist.done.length > hist.undoDepth) { |
| hist.done.shift(); |
| if (!hist.done[0].ranges) { hist.done.shift(); } |
| } |
| } |
| hist.done.push(selAfter); |
| hist.generation = ++hist.maxGeneration; |
| hist.lastModTime = hist.lastSelTime = time; |
| hist.lastOp = hist.lastSelOp = opId; |
| hist.lastOrigin = hist.lastSelOrigin = change.origin; |
| |
| if (!last) { signal(doc, "historyAdded"); } |
| } |
| |
| function selectionEventCanBeMerged(doc, origin, prev, sel) { |
| var ch = origin.charAt(0); |
| return ch == "*" || |
| ch == "+" && |
| prev.ranges.length == sel.ranges.length && |
| prev.somethingSelected() == sel.somethingSelected() && |
| new Date - doc.history.lastSelTime <= (doc.cm ? doc.cm.options.historyEventDelay : 500) |
| } |
| |
| // Called whenever the selection changes, sets the new selection as |
| // the pending selection in the history, and pushes the old pending |
| // selection into the 'done' array when it was significantly |
| // different (in number of selected ranges, emptiness, or time). |
| function addSelectionToHistory(doc, sel, opId, options) { |
| var hist = doc.history, origin = options && options.origin; |
| |
| // A new event is started when the previous origin does not match |
| // the current, or the origins don't allow matching. Origins |
| // starting with * are always merged, those starting with + are |
| // merged when similar and close together in time. |
| if (opId == hist.lastSelOp || |
| (origin && hist.lastSelOrigin == origin && |
| (hist.lastModTime == hist.lastSelTime && hist.lastOrigin == origin || |
| selectionEventCanBeMerged(doc, origin, lst(hist.done), sel)))) |
| { hist.done[hist.done.length - 1] = sel; } |
| else |
| { pushSelectionToHistory(sel, hist.done); } |
| |
| hist.lastSelTime = +new Date; |
| hist.lastSelOrigin = origin; |
| hist.lastSelOp = opId; |
| if (options && options.clearRedo !== false) |
| { clearSelectionEvents(hist.undone); } |
| } |
| |
| function pushSelectionToHistory(sel, dest) { |
| var top = lst(dest); |
| if (!(top && top.ranges && top.equals(sel))) |
| { dest.push(sel); } |
| } |
| |
| // Used to store marked span information in the history. |
| function attachLocalSpans(doc, change, from, to) { |
| var existing = change["spans_" + doc.id], n = 0; |
| doc.iter(Math.max(doc.first, from), Math.min(doc.first + doc.size, to), function (line) { |
| if (line.markedSpans) |
| { (existing || (existing = change["spans_" + doc.id] = {}))[n] = line.markedSpans; } |
| ++n; |
| }); |
| } |
| |
| // When un/re-doing restores text containing marked spans, those |
| // that have been explicitly cleared should not be restored. |
| function removeClearedSpans(spans) { |
| if (!spans) { return null } |
| var out; |
| for (var i = 0; i < spans.length; ++i) { |
| if (spans[i].marker.explicitlyCleared) { if (!out) { out = spans.slice(0, i); } } |
| else if (out) { out.push(spans[i]); } |
| } |
| return !out ? spans : out.length ? out : null |
| } |
| |
| // Retrieve and filter the old marked spans stored in a change event. |
| function getOldSpans(doc, change) { |
| var found = change["spans_" + doc.id]; |
| if (!found) { return null } |
| var nw = []; |
| for (var i = 0; i < change.text.length; ++i) |
| { nw.push(removeClearedSpans(found[i])); } |
| return nw |
| } |
| |
| // Used for un/re-doing changes from the history. Combines the |
| // result of computing the existing spans with the set of spans that |
| // existed in the history (so that deleting around a span and then |
| // undoing brings back the span). |
| function mergeOldSpans(doc, change) { |
| var old = getOldSpans(doc, change); |
| var stretched = stretchSpansOverChange(doc, change); |
| if (!old) { return stretched } |
| if (!stretched) { return old } |
| |
| for (var i = 0; i < old.length; ++i) { |
| var oldCur = old[i], stretchCur = stretched[i]; |
| if (oldCur && stretchCur) { |
| spans: for (var j = 0; j < stretchCur.length; ++j) { |
| var span = stretchCur[j]; |
| for (var k = 0; k < oldCur.length; ++k) |
| { if (oldCur[k].marker == span.marker) { continue spans } } |
| oldCur.push(span); |
| } |
| } else if (stretchCur) { |
| old[i] = stretchCur; |
| } |
| } |
| return old |
| } |
| |
| // Used both to provide a JSON-safe object in .getHistory, and, when |
| // detaching a document, to split the history in two |
| function copyHistoryArray(events, newGroup, instantiateSel) { |
| var copy = []; |
| for (var i = 0; i < events.length; ++i) { |
| var event = events[i]; |
| if (event.ranges) { |
| copy.push(instantiateSel ? Selection.prototype.deepCopy.call(event) : event); |
| continue |
| } |
| var changes = event.changes, newChanges = []; |
| copy.push({changes: newChanges}); |
| for (var j = 0; j < changes.length; ++j) { |
| var change = changes[j], m = (void 0); |
| newChanges.push({from: change.from, to: change.to, text: change.text}); |
| if (newGroup) { for (var prop in change) { if (m = prop.match(/^spans_(\d+)$/)) { |
| if (indexOf(newGroup, Number(m[1])) > -1) { |
| lst(newChanges)[prop] = change[prop]; |
| delete change[prop]; |
| } |
| } } } |
| } |
| } |
| return copy |
| } |
| |
| // The 'scroll' parameter given to many of these indicated whether |
| // the new cursor position should be scrolled into view after |
| // modifying the selection. |
| |
| // If shift is held or the extend flag is set, extends a range to |
| // include a given position (and optionally a second position). |
| // Otherwise, simply returns the range between the given positions. |
| // Used for cursor motion and such. |
| function extendRange(range, head, other, extend) { |
| if (extend) { |
| var anchor = range.anchor; |
| if (other) { |
| var posBefore = cmp(head, anchor) < 0; |
| if (posBefore != (cmp(other, anchor) < 0)) { |
| anchor = head; |
| head = other; |
| } else if (posBefore != (cmp(head, other) < 0)) { |
| head = other; |
| } |
| } |
| return new Range(anchor, head) |
| } else { |
| return new Range(other || head, head) |
| } |
| } |
| |
| // Extend the primary selection range, discard the rest. |
| function extendSelection(doc, head, other, options, extend) { |
| if (extend == null) { extend = doc.cm && (doc.cm.display.shift || doc.extend); } |
| setSelection(doc, new Selection([extendRange(doc.sel.primary(), head, other, extend)], 0), options); |
| } |
| |
| // Extend all selections (pos is an array of selections with length |
| // equal the number of selections) |
| function extendSelections(doc, heads, options) { |
| var out = []; |
| var extend = doc.cm && (doc.cm.display.shift || doc.extend); |
| for (var i = 0; i < doc.sel.ranges.length; i++) |
| { out[i] = extendRange(doc.sel.ranges[i], heads[i], null, extend); } |
| var newSel = normalizeSelection(doc.cm, out, doc.sel.primIndex); |
| setSelection(doc, newSel, options); |
| } |
| |
| // Updates a single range in the selection. |
| function replaceOneSelection(doc, i, range, options) { |
| var ranges = doc.sel.ranges.slice(0); |
| ranges[i] = range; |
| setSelection(doc, normalizeSelection(doc.cm, ranges, doc.sel.primIndex), options); |
| } |
| |
| // Reset the selection to a single range. |
| function setSimpleSelection(doc, anchor, head, options) { |
| setSelection(doc, simpleSelection(anchor, head), options); |
| } |
| |
| // Give beforeSelectionChange handlers a change to influence a |
| // selection update. |
| function filterSelectionChange(doc, sel, options) { |
| var obj = { |
| ranges: sel.ranges, |
| update: function(ranges) { |
| this.ranges = []; |
| for (var i = 0; i < ranges.length; i++) |
| { this.ranges[i] = new Range(clipPos(doc, ranges[i].anchor), |
| clipPos(doc, ranges[i].head)); } |
| }, |
| origin: options && options.origin |
| }; |
| signal(doc, "beforeSelectionChange", doc, obj); |
| if (doc.cm) { signal(doc.cm, "beforeSelectionChange", doc.cm, obj); } |
| if (obj.ranges != sel.ranges) { return normalizeSelection(doc.cm, obj.ranges, obj.ranges.length - 1) } |
| else { return sel } |
| } |
| |
| function setSelectionReplaceHistory(doc, sel, options) { |
| var done = doc.history.done, last = lst(done); |
| if (last && last.ranges) { |
| done[done.length - 1] = sel; |
| setSelectionNoUndo(doc, sel, options); |
| } else { |
| setSelection(doc, sel, options); |
| } |
| } |
| |
| // Set a new selection. |
| function setSelection(doc, sel, options) { |
| setSelectionNoUndo(doc, sel, options); |
| addSelectionToHistory(doc, doc.sel, doc.cm ? doc.cm.curOp.id : NaN, options); |
| } |
| |
| function setSelectionNoUndo(doc, sel, options) { |
| if (hasHandler(doc, "beforeSelectionChange") || doc.cm && hasHandler(doc.cm, "beforeSelectionChange")) |
| { sel = filterSelectionChange(doc, sel, options); } |
| |
| var bias = options && options.bias || |
| (cmp(sel.primary().head, doc.sel.primary().head) < 0 ? -1 : 1); |
| setSelectionInner(doc, skipAtomicInSelection(doc, sel, bias, true)); |
| |
| if (!(options && options.scroll === false) && doc.cm) |
| { ensureCursorVisible(doc.cm); } |
| } |
| |
| function setSelectionInner(doc, sel) { |
| if (sel.equals(doc.sel)) { return } |
| |
| doc.sel = sel; |
| |
| if (doc.cm) { |
| doc.cm.curOp.updateInput = 1; |
| doc.cm.curOp.selectionChanged = true; |
| signalCursorActivity(doc.cm); |
| } |
| signalLater(doc, "cursorActivity", doc); |
| } |
| |
| // Verify that the selection does not partially select any atomic |
| // marked ranges. |
| function reCheckSelection(doc) { |
| setSelectionInner(doc, skipAtomicInSelection(doc, doc.sel, null, false)); |
| } |
| |
| // Return a selection that does not partially select any atomic |
| // ranges. |
| function skipAtomicInSelection(doc, sel, bias, mayClear) { |
| var out; |
| for (var i = 0; i < sel.ranges.length; i++) { |
| var range = sel.ranges[i]; |
| var old = sel.ranges.length == doc.sel.ranges.length && doc.sel.ranges[i]; |
| var newAnchor = skipAtomic(doc, range.anchor, old && old.anchor, bias, mayClear); |
| var newHead = skipAtomic(doc, range.head, old && old.head, bias, mayClear); |
| if (out || newAnchor != range.anchor || newHead != range.head) { |
| if (!out) { out = sel.ranges.slice(0, i); } |
| out[i] = new Range(newAnchor, newHead); |
| } |
| } |
| return out ? normalizeSelection(doc.cm, out, sel.primIndex) : sel |
| } |
| |
| function skipAtomicInner(doc, pos, oldPos, dir, mayClear) { |
| var line = getLine(doc, pos.line); |
| if (line.markedSpans) { for (var i = 0; i < line.markedSpans.length; ++i) { |
| var sp = line.markedSpans[i], m = sp.marker; |
| |
| // Determine if we should prevent the cursor being placed to the left/right of an atomic marker |
| // Historically this was determined using the inclusiveLeft/Right option, but the new way to control it |
| // is with selectLeft/Right |
| var preventCursorLeft = ("selectLeft" in m) ? !m.selectLeft : m.inclusiveLeft; |
| var preventCursorRight = ("selectRight" in m) ? !m.selectRight : m.inclusiveRight; |
| |
| if ((sp.from == null || (preventCursorLeft ? sp.from <= pos.ch : sp.from < pos.ch)) && |
| (sp.to == null || (preventCursorRight ? sp.to >= pos.ch : sp.to > pos.ch))) { |
| if (mayClear) { |
| signal(m, "beforeCursorEnter"); |
| if (m.explicitlyCleared) { |
| if (!line.markedSpans) { break } |
| else {--i; continue} |
| } |
| } |
| if (!m.atomic) { continue } |
| |
| if (oldPos) { |
| var near = m.find(dir < 0 ? 1 : -1), diff = (void 0); |
| if (dir < 0 ? preventCursorRight : preventCursorLeft) |
| { near = movePos(doc, near, -dir, near && near.line == pos.line ? line : null); } |
| if (near && near.line == pos.line && (diff = cmp(near, oldPos)) && (dir < 0 ? diff < 0 : diff > 0)) |
| { return skipAtomicInner(doc, near, pos, dir, mayClear) } |
| } |
| |
| var far = m.find(dir < 0 ? -1 : 1); |
| if (dir < 0 ? preventCursorLeft : preventCursorRight) |
| { far = movePos(doc, far, dir, far.line == pos.line ? line : null); } |
| return far ? skipAtomicInner(doc, far, pos, dir, mayClear) : null |
| } |
| } } |
| return pos |
| } |
| |
| // Ensure a given position is not inside an atomic range. |
| function skipAtomic(doc, pos, oldPos, bias, mayClear) { |
| var dir = bias || 1; |
| var found = skipAtomicInner(doc, pos, oldPos, dir, mayClear) || |
| (!mayClear && skipAtomicInner(doc, pos, oldPos, dir, true)) || |
| skipAtomicInner(doc, pos, oldPos, -dir, mayClear) || |
| (!mayClear && skipAtomicInner(doc, pos, oldPos, -dir, true)); |
| if (!found) { |
| doc.cantEdit = true; |
| return Pos(doc.first, 0) |
| } |
| return found |
| } |
| |
| function movePos(doc, pos, dir, line) { |
| if (dir < 0 && pos.ch == 0) { |
| if (pos.line > doc.first) { return clipPos(doc, Pos(pos.line - 1)) } |
| else { return null } |
| } else if (dir > 0 && pos.ch == (line || getLine(doc, pos.line)).text.length) { |
| if (pos.line < doc.first + doc.size - 1) { return Pos(pos.line + 1, 0) } |
| else { return null } |
| } else { |
| return new Pos(pos.line, pos.ch + dir) |
| } |
| } |
| |
| function selectAll(cm) { |
| cm.setSelection(Pos(cm.firstLine(), 0), Pos(cm.lastLine()), sel_dontScroll); |
| } |
| |
| // UPDATING |
| |
| // Allow "beforeChange" event handlers to influence a change |
| function filterChange(doc, change, update) { |
| var obj = { |
| canceled: false, |
| from: change.from, |
| to: change.to, |
| text: change.text, |
| origin: change.origin, |
| cancel: function () { return obj.canceled = true; } |
| }; |
| if (update) { obj.update = function (from, to, text, origin) { |
| if (from) { obj.from = clipPos(doc, from); } |
| if (to) { obj.to = clipPos(doc, to); } |
| if (text) { obj.text = text; } |
| if (origin !== undefined) { obj.origin = origin; } |
| }; } |
| signal(doc, "beforeChange", doc, obj); |
| if (doc.cm) { signal(doc.cm, "beforeChange", doc.cm, obj); } |
| |
| if (obj.canceled) { |
| if (doc.cm) { doc.cm.curOp.updateInput = 2; } |
| return null |
| } |
| return {from: obj.from, to: obj.to, text: obj.text, origin: obj.origin} |
| } |
| |
| // Apply a change to a document, and add it to the document's |
| // history, and propagating it to all linked documents. |
| function makeChange(doc, change, ignoreReadOnly) { |
| if (doc.cm) { |
| if (!doc.cm.curOp) { return operation(doc.cm, makeChange)(doc, change, ignoreReadOnly) } |
| if (doc.cm.state.suppressEdits) { return } |
| } |
| |
| if (hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange")) { |
| change = filterChange(doc, change, true); |
| if (!change) { return } |
| } |
| |
| // Possibly split or suppress the update based on the presence |
| // of read-only spans in its range. |
| var split = sawReadOnlySpans && !ignoreReadOnly && removeReadOnlyRanges(doc, change.from, change.to); |
| if (split) { |
| for (var i = split.length - 1; i >= 0; --i) |
| { makeChangeInner(doc, {from: split[i].from, to: split[i].to, text: i ? [""] : change.text, origin: change.origin}); } |
| } else { |
| makeChangeInner(doc, change); |
| } |
| } |
| |
| function makeChangeInner(doc, change) { |
| if (change.text.length == 1 && change.text[0] == "" && cmp(change.from, change.to) == 0) { return } |
| var selAfter = computeSelAfterChange(doc, change); |
| addChangeToHistory(doc, change, selAfter, doc.cm ? doc.cm.curOp.id : NaN); |
| |
| makeChangeSingleDoc(doc, change, selAfter, stretchSpansOverChange(doc, change)); |
| var rebased = []; |
| |
| linkedDocs(doc, function (doc, sharedHist) { |
| if (!sharedHist && indexOf(rebased, doc.history) == -1) { |
| rebaseHist(doc.history, change); |
| rebased.push(doc.history); |
| } |
| makeChangeSingleDoc(doc, change, null, stretchSpansOverChange(doc, change)); |
| }); |
| } |
| |
| // Revert a change stored in a document's history. |
| function makeChangeFromHistory(doc, type, allowSelectionOnly) { |
| var suppress = doc.cm && doc.cm.state.suppressEdits; |
| if (suppress && !allowSelectionOnly) { return } |
| |
| var hist = doc.history, event, selAfter = doc.sel; |
| var source = type == "undo" ? hist.done : hist.undone, dest = type == "undo" ? hist.undone : hist.done; |
| |
| // Verify that there is a useable event (so that ctrl-z won't |
| // needlessly clear selection events) |
| var i = 0; |
| for (; i < source.length; i++) { |
| event = source[i]; |
| if (allowSelectionOnly ? event.ranges && !event.equals(doc.sel) : !event.ranges) |
| { break } |
| } |
| if (i == source.length) { return } |
| hist.lastOrigin = hist.lastSelOrigin = null; |
| |
| for (;;) { |
| event = source.pop(); |
| if (event.ranges) { |
| pushSelectionToHistory(event, dest); |
| if (allowSelectionOnly && !event.equals(doc.sel)) { |
| setSelection(doc, event, {clearRedo: false}); |
| return |
| } |
| selAfter = event; |
| } else if (suppress) { |
| source.push(event); |
| return |
| } else { break } |
| } |
| |
| // Build up a reverse change object to add to the opposite history |
| // stack (redo when undoing, and vice versa). |
| var antiChanges = []; |
| pushSelectionToHistory(selAfter, dest); |
| dest.push({changes: antiChanges, generation: hist.generation}); |
| hist.generation = event.generation || ++hist.maxGeneration; |
| |
| var filter = hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange"); |
| |
| var loop = function ( i ) { |
| var change = event.changes[i]; |
| change.origin = type; |
| if (filter && !filterChange(doc, change, false)) { |
| source.length = 0; |
| return {} |
| } |
| |
| antiChanges.push(historyChangeFromChange(doc, change)); |
| |
| var after = i ? computeSelAfterChange(doc, change) : lst(source); |
| makeChangeSingleDoc(doc, change, after, mergeOldSpans(doc, change)); |
| if (!i && doc.cm) { doc.cm.scrollIntoView({from: change.from, to: changeEnd(change)}); } |
| var rebased = []; |
| |
| // Propagate to the linked documents |
| linkedDocs(doc, function (doc, sharedHist) { |
| if (!sharedHist && indexOf(rebased, doc.history) == -1) { |
| rebaseHist(doc.history, change); |
| rebased.push(doc.history); |
| } |
| makeChangeSingleDoc(doc, change, null, mergeOldSpans(doc, change)); |
| }); |
| }; |
| |
| for (var i$1 = event.changes.length - 1; i$1 >= 0; --i$1) { |
| var returned = loop( i$1 ); |
| |
| if ( returned ) return returned.v; |
| } |
| } |
| |
| // Sub-views need their line numbers shifted when text is added |
| // above or below them in the parent document. |
| function shiftDoc(doc, distance) { |
| if (distance == 0) { return } |
| doc.first += distance; |
| doc.sel = new Selection(map(doc.sel.ranges, function (range) { return new Range( |
| Pos(range.anchor.line + distance, range.anchor.ch), |
| Pos(range.head.line + distance, range.head.ch) |
| ); }), doc.sel.primIndex); |
| if (doc.cm) { |
| regChange(doc.cm, doc.first, doc.first - distance, distance); |
| for (var d = doc.cm.display, l = d.viewFrom; l < d.viewTo; l++) |
| { regLineChange(doc.cm, l, "gutter"); } |
| } |
| } |
| |
| // More lower-level change function, handling only a single document |
| // (not linked ones). |
| function makeChangeSingleDoc(doc, change, selAfter, spans) { |
| if (doc.cm && !doc.cm.curOp) |
| { return operation(doc.cm, makeChangeSingleDoc)(doc, change, selAfter, spans) } |
| |
| if (change.to.line < doc.first) { |
| shiftDoc(doc, change.text.length - 1 - (change.to.line - change.from.line)); |
| return |
| } |
| if (change.from.line > doc.lastLine()) { return } |
| |
| // Clip the change to the size of this doc |
| if (change.from.line < doc.first) { |
| var shift = change.text.length - 1 - (doc.first - change.from.line); |
| shiftDoc(doc, shift); |
| change = {from: Pos(doc.first, 0), to: Pos(change.to.line + shift, change.to.ch), |
| text: [lst(change.text)], origin: change.origin}; |
| } |
| var last = doc.lastLine(); |
| if (change.to.line > last) { |
| change = {from: change.from, to: Pos(last, getLine(doc, last).text.length), |
| text: [change.text[0]], origin: change.origin}; |
| } |
| |
| change.removed = getBetween(doc, change.from, change.to); |
| |
| if (!selAfter) { selAfter = computeSelAfterChange(doc, change); } |
| if (doc.cm) { makeChangeSingleDocInEditor(doc.cm, change, spans); } |
| else { updateDoc(doc, change, spans); } |
| setSelectionNoUndo(doc, selAfter, sel_dontScroll); |
| } |
| |
| // Handle the interaction of a change to a document with the editor |
| // that this document is part of. |
| function makeChangeSingleDocInEditor(cm, change, spans) { |
| var doc = cm.doc, display = cm.display, from = change.from, to = change.to; |
| |
| var recomputeMaxLength = false, checkWidthStart = from.line; |
| if (!cm.options.lineWrapping) { |
| checkWidthStart = lineNo(visualLine(getLine(doc, from.line))); |
| doc.iter(checkWidthStart, to.line + 1, function (line) { |
| if (line == display.maxLine) { |
| recomputeMaxLength = true; |
| return true |
| } |
| }); |
| } |
| |
| if (doc.sel.contains(change.from, change.to) > -1) |
| { signalCursorActivity(cm); } |
| |
| updateDoc(doc, change, spans, estimateHeight(cm)); |
| |
| if (!cm.options.lineWrapping) { |
| doc.iter(checkWidthStart, from.line + change.text.length, function (line) { |
| var len = lineLength(line); |
| if (len > display.maxLineLength) { |
| display.maxLine = line; |
| display.maxLineLength = len; |
| display.maxLineChanged = true; |
| recomputeMaxLength = false; |
| } |
| }); |
| if (recomputeMaxLength) { cm.curOp.updateMaxLine = true; } |
| } |
| |
| retreatFrontier(doc, from.line); |
| startWorker(cm, 400); |
| |
| var lendiff = change.text.length - (to.line - from.line) - 1; |
| // Remember that these lines changed, for updating the display |
| if (change.full) |
| { regChange(cm); } |
| else if (from.line == to.line && change.text.length == 1 && !isWholeLineUpdate(cm.doc, change)) |
| { regLineChange(cm, from.line, "text"); } |
| else |
| { regChange(cm, from.line, to.line + 1, lendiff); } |
| |
| var changesHandler = hasHandler(cm, "changes"), changeHandler = hasHandler(cm, "change"); |
| if (changeHandler || changesHandler) { |
| var obj = { |
| from: from, to: to, |
| text: change.text, |
| removed: change.removed, |
| origin: change.origin |
| }; |
| if (changeHandler) { signalLater(cm, "change", cm, obj); } |
| if (changesHandler) { (cm.curOp.changeObjs || (cm.curOp.changeObjs = [])).push(obj); } |
| } |
| cm.display.selForContextMenu = null; |
| } |
| |
| function replaceRange(doc, code, from, to, origin) { |
| var assign; |
| |
| if (!to) { to = from; } |
| if (cmp(to, from) < 0) { (assign = [to, from], from = assign[0], to = assign[1]); } |
| if (typeof code == "string") { code = doc.splitLines(code); } |
| makeChange(doc, {from: from, to: to, text: code, origin: origin}); |
| } |
| |
| // Rebasing/resetting history to deal with externally-sourced changes |
| |
| function rebaseHistSelSingle(pos, from, to, diff) { |
| if (to < pos.line) { |
| pos.line += diff; |
| } else if (from < pos.line) { |
| pos.line = from; |
| pos.ch = 0; |
| } |
| } |
| |
| // Tries to rebase an array of history events given a change in the |
| // document. If the change touches the same lines as the event, the |
| // event, and everything 'behind' it, is discarded. If the change is |
| // before the event, the event's positions are updated. Uses a |
| // copy-on-write scheme for the positions, to avoid having to |
| // reallocate them all on every rebase, but also avoid problems with |
| // shared position objects being unsafely updated. |
| function rebaseHistArray(array, from, to, diff) { |
| for (var i = 0; i < array.length; ++i) { |
| var sub = array[i], ok = true; |
| if (sub.ranges) { |
| if (!sub.copied) { sub = array[i] = sub.deepCopy(); sub.copied = true; } |
| for (var j = 0; j < sub.ranges.length; j++) { |
| rebaseHistSelSingle(sub.ranges[j].anchor, from, to, diff); |
| rebaseHistSelSingle(sub.ranges[j].head, from, to, diff); |
| } |
| continue |
| } |
| for (var j$1 = 0; j$1 < sub.changes.length; ++j$1) { |
| var cur = sub.changes[j$1]; |
| if (to < cur.from.line) { |
| cur.from = Pos(cur.from.line + diff, cur.from.ch); |
| cur.to = Pos(cur.to.line + diff, cur.to.ch); |
| } else if (from <= cur.to.line) { |
| ok = false; |
| break |
| } |
| } |
| if (!ok) { |
| array.splice(0, i + 1); |
| i = 0; |
| } |
| } |
| } |
| |
| function rebaseHist(hist, change) { |
| var from = change.from.line, to = change.to.line, diff = change.text.length - (to - from) - 1; |
| rebaseHistArray(hist.done, from, to, diff); |
| rebaseHistArray(hist.undone, from, to, diff); |
| } |
| |
| // Utility for applying a change to a line by handle or number, |
| // returning the number and optionally registering the line as |
| // changed. |
| function changeLine(doc, handle, changeType, op) { |
| var no = handle, line = handle; |
| if (typeof handle == "number") { line = getLine(doc, clipLine(doc, handle)); } |
| else { no = lineNo(handle); } |
| if (no == null) { return null } |
| if (op(line, no) && doc.cm) { regLineChange(doc.cm, no, changeType); } |
| return line |
| } |
| |
| // The document is represented as a BTree consisting of leaves, with |
| // chunk of lines in them, and branches, with up to ten leaves or |
| // other branch nodes below them. The top node is always a branch |
| // node, and is the document object itself (meaning it has |
| // additional methods and properties). |
| // |
| // All nodes have parent links. The tree is used both to go from |
| // line numbers to line objects, and to go from objects to numbers. |
| // It also indexes by height, and is used to convert between height |
| // and line object, and to find the total height of the document. |
| // |
| // See also http://marijnhaverbeke.nl/blog/codemirror-line-tree.html |
| |
| function LeafChunk(lines) { |
| this.lines = lines; |
| this.parent = null; |
| var height = 0; |
| for (var i = 0; i < lines.length; ++i) { |
| lines[i].parent = this; |
| height += lines[i].height; |
| } |
| this.height = height; |
| } |
| |
| LeafChunk.prototype = { |
| chunkSize: function() { return this.lines.length }, |
| |
| // Remove the n lines at offset 'at'. |
| removeInner: function(at, n) { |
| for (var i = at, e = at + n; i < e; ++i) { |
| var line = this.lines[i]; |
| this.height -= line.height; |
| cleanUpLine(line); |
| signalLater(line, "delete"); |
| } |
| this.lines.splice(at, n); |
| }, |
| |
| // Helper used to collapse a small branch into a single leaf. |
| collapse: function(lines) { |
| lines.push.apply(lines, this.lines); |
| }, |
| |
| // Insert the given array of lines at offset 'at', count them as |
| // having the given height. |
| insertInner: function(at, lines, height) { |
| this.height += height; |
| this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at)); |
| for (var i = 0; i < lines.length; ++i) { lines[i].parent = this; } |
| }, |
| |
| // Used to iterate over a part of the tree. |
| iterN: function(at, n, op) { |
| for (var e = at + n; at < e; ++at) |
| { if (op(this.lines[at])) { return true } } |
| } |
| }; |
| |
| function BranchChunk(children) { |
| this.children = children; |
| var size = 0, height = 0; |
| for (var i = 0; i < children.length; ++i) { |
| var ch = children[i]; |
| size += ch.chunkSize(); height += ch.height; |
| ch.parent = this; |
| } |
| this.size = size; |
| this.height = height; |
| this.parent = null; |
| } |
| |
| BranchChunk.prototype = { |
| chunkSize: function() { return this.size }, |
| |
| removeInner: function(at, n) { |
| this.size -= n; |
| for (var i = 0; i < this.children.length; ++i) { |
| var child = this.children[i], sz = child.chunkSize(); |
| if (at < sz) { |
| var rm = Math.min(n, sz - at), oldHeight = child.height; |
| child.removeInner(at, rm); |
| this.height -= oldHeight - child.height; |
| if (sz == rm) { this.children.splice(i--, 1); child.parent = null; } |
| if ((n -= rm) == 0) { break } |
| at = 0; |
| } else { at -= sz; } |
| } |
| // If the result is smaller than 25 lines, ensure that it is a |
| // single leaf node. |
| if (this.size - n < 25 && |
| (this.children.length > 1 || !(this.children[0] instanceof LeafChunk))) { |
| var lines = []; |
| this.collapse(lines); |
| this.children = [new LeafChunk(lines)]; |
| this.children[0].parent = this; |
| } |
| }, |
| |
| collapse: function(lines) { |
| for (var i = 0; i < this.children.length; ++i) { this.children[i].collapse(lines); } |
| }, |
| |
| insertInner: function(at, lines, height) { |
| this.size += lines.length; |
| this.height += height; |
| for (var i = 0; i < this.children.length; ++i) { |
| var child = this.children[i], sz = child.chunkSize(); |
| if (at <= sz) { |
| child.insertInner(at, lines, height); |
| if (child.lines && child.lines.length > 50) { |
| // To avoid memory thrashing when child.lines is huge (e.g. first view of a large file), it's never spliced. |
| // Instead, small slices are taken. They're taken in order because sequential memory accesses are fastest. |
| var remaining = child.lines.length % 25 + 25; |
| for (var pos = remaining; pos < child.lines.length;) { |
| var leaf = new LeafChunk(child.lines.slice(pos, pos += 25)); |
| child.height -= leaf.height; |
| this.children.splice(++i, 0, leaf); |
| leaf.parent = this; |
| } |
| child.lines = child.lines.slice(0, remaining); |
| this.maybeSpill(); |
| } |
| break |
| } |
| at -= sz; |
| } |
| }, |
| |
| // When a node has grown, check whether it should be split. |
| maybeSpill: function() { |
| if (this.children.length <= 10) { return } |
| var me = this; |
| do { |
| var spilled = me.children.splice(me.children.length - 5, 5); |
| var sibling = new BranchChunk(spilled); |
| if (!me.parent) { // Become the parent node |
| var copy = new BranchChunk(me.children); |
| copy.parent = me; |
| me.children = [copy, sibling]; |
| me = copy; |
| } else { |
| me.size -= sibling.size; |
| me.height -= sibling.height; |
| var myIndex = indexOf(me.parent.children, me); |
| me.parent.children.splice(myIndex + 1, 0, sibling); |
| } |
| sibling.parent = me.parent; |
| } while (me.children.length > 10) |
| me.parent.maybeSpill(); |
| }, |
| |
| iterN: function(at, n, op) { |
| for (var i = 0; i < this.children.length; ++i) { |
| var child = this.children[i], sz = child.chunkSize(); |
| if (at < sz) { |
| var used = Math.min(n, sz - at); |
| if (child.iterN(at, used, op)) { return true } |
| if ((n -= used) == 0) { break } |
| at = 0; |
| } else { at -= sz; } |
| } |
| } |
| }; |
| |
| // Line widgets are block elements displayed above or below a line. |
| |
| var LineWidget = function(doc, node, options) { |
| if (options) { for (var opt in options) { if (options.hasOwnProperty(opt)) |
| { this[opt] = options[opt]; } } } |
| this.doc = doc; |
| this.node = node; |
| }; |
| |
| LineWidget.prototype.clear = function () { |
| var cm = this.doc.cm, ws = this.line.widgets, line = this.line, no = lineNo(line); |
| if (no == null || !ws) { return } |
| for (var i = 0; i < ws.length; ++i) { if (ws[i] == this) { ws.splice(i--, 1); } } |
| if (!ws.length) { line.widgets = null; } |
| var height = widgetHeight(this); |
| updateLineHeight(line, Math.max(0, line.height - height)); |
| if (cm) { |
| runInOp(cm, function () { |
| adjustScrollWhenAboveVisible(cm, line, -height); |
| regLineChange(cm, no, "widget"); |
| }); |
| signalLater(cm, "lineWidgetCleared", cm, this, no); |
| } |
| }; |
| |
| LineWidget.prototype.changed = function () { |
| var this$1 = this; |
| |
| var oldH = this.height, cm = this.doc.cm, line = this.line; |
| this.height = null; |
| var diff = widgetHeight(this) - oldH; |
| if (!diff) { return } |
| if (!lineIsHidden(this.doc, line)) { updateLineHeight(line, line.height + diff); } |
| if (cm) { |
| runInOp(cm, function () { |
| cm.curOp.forceUpdate = true; |
| adjustScrollWhenAboveVisible(cm, line, diff); |
| signalLater(cm, "lineWidgetChanged", cm, this$1, lineNo(line)); |
| }); |
| } |
| }; |
| eventMixin(LineWidget); |
| |
| function adjustScrollWhenAboveVisible(cm, line, diff) { |
| if (heightAtLine(line) < ((cm.curOp && cm.curOp.scrollTop) || cm.doc.scrollTop)) |
| { addToScrollTop(cm, diff); } |
| } |
| |
| function addLineWidget(doc, handle, node, options) { |
| var widget = new LineWidget(doc, node, options); |
| var cm = doc.cm; |
| if (cm && widget.noHScroll) { cm.display.alignWidgets = true; } |
| changeLine(doc, handle, "widget", function (line) { |
| var widgets = line.widgets || (line.widgets = []); |
| if (widget.insertAt == null) { widgets.push(widget); } |
| else { widgets.splice(Math.min(widgets.length - 1, Math.max(0, widget.insertAt)), 0, widget); } |
| widget.line = line; |
| if (cm && !lineIsHidden(doc, line)) { |
| var aboveVisible = heightAtLine(line) < doc.scrollTop; |
| updateLineHeight(line, line.height + widgetHeight(widget)); |
| if (aboveVisible) { addToScrollTop(cm, widget.height); } |
| cm.curOp.forceUpdate = true; |
| } |
| return true |
| }); |
| if (cm) { signalLater(cm, "lineWidgetAdded", cm, widget, typeof handle == "number" ? handle : lineNo(handle)); } |
| return widget |
| } |
| |
| // TEXTMARKERS |
| |
| // Created with markText and setBookmark methods. A TextMarker is a |
| // handle that can be used to clear or find a marked position in the |
| // document. Line objects hold arrays (markedSpans) containing |
| // {from, to, marker} object pointing to such marker objects, and |
| // indicating that such a marker is present on that line. Multiple |
| // lines may point to the same marker when it spans across lines. |
| // The spans will have null for their from/to properties when the |
| // marker continues beyond the start/end of the line. Markers have |
| // links back to the lines they currently touch. |
| |
| // Collapsed markers have unique ids, in order to be able to order |
| // them, which is needed for uniquely determining an outer marker |
| // when they overlap (they may nest, but not partially overlap). |
| var nextMarkerId = 0; |
| |
| var TextMarker = function(doc, type) { |
| this.lines = []; |
| this.type = type; |
| this.doc = doc; |
| this.id = ++nextMarkerId; |
| }; |
| |
| // Clear the marker. |
| TextMarker.prototype.clear = function () { |
| if (this.explicitlyCleared) { return } |
| var cm = this.doc.cm, withOp = cm && !cm.curOp; |
| if (withOp) { startOperation(cm); } |
| if (hasHandler(this, "clear")) { |
| var found = this.find(); |
| if (found) { signalLater(this, "clear", found.from, found.to); } |
| } |
| var min = null, max = null; |
| for (var i = 0; i < this.lines.length; ++i) { |
| var line = this.lines[i]; |
| var span = getMarkedSpanFor(line.markedSpans, this); |
| if (cm && !this.collapsed) { regLineChange(cm, lineNo(line), "text"); } |
| else if (cm) { |
| if (span.to != null) { max = lineNo(line); } |
| if (span.from != null) { min = lineNo(line); } |
| } |
| line.markedSpans = removeMarkedSpan(line.markedSpans, span); |
| if (span.from == null && this.collapsed && !lineIsHidden(this.doc, line) && cm) |
| { updateLineHeight(line, textHeight(cm.display)); } |
| } |
| if (cm && this.collapsed && !cm.options.lineWrapping) { for (var i$1 = 0; i$1 < this.lines.length; ++i$1) { |
| var visual = visualLine(this.lines[i$1]), len = lineLength(visual); |
| if (len > cm.display.maxLineLength) { |
| cm.display.maxLine = visual; |
| cm.display.maxLineLength = len; |
| cm.display.maxLineChanged = true; |
| } |
| } } |
| |
| if (min != null && cm && this.collapsed) { regChange(cm, min, max + 1); } |
| this.lines.length = 0; |
| this.explicitlyCleared = true; |
| if (this.atomic && this.doc.cantEdit) { |
| this.doc.cantEdit = false; |
| if (cm) { reCheckSelection(cm.doc); } |
| } |
| if (cm) { signalLater(cm, "markerCleared", cm, this, min, max); } |
| if (withOp) { endOperation(cm); } |
| if (this.parent) { this.parent.clear(); } |
| }; |
| |
| // Find the position of the marker in the document. Returns a {from, |
| // to} object by default. Side can be passed to get a specific side |
| // -- 0 (both), -1 (left), or 1 (right). When lineObj is true, the |
| // Pos objects returned contain a line object, rather than a line |
| // number (used to prevent looking up the same line twice). |
| TextMarker.prototype.find = function (side, lineObj) { |
| if (side == null && this.type == "bookmark") { side = 1; } |
| var from, to; |
| for (var i = 0; i < this.lines.length; ++i) { |
| var line = this.lines[i]; |
| var span = getMarkedSpanFor(line.markedSpans, this); |
| if (span.from != null) { |
| from = Pos(lineObj ? line : lineNo(line), span.from); |
| if (side == -1) { return from } |
| } |
| if (span.to != null) { |
| to = Pos(lineObj ? line : lineNo(line), span.to); |
| if (side == 1) { return to } |
| } |
| } |
| return from && {from: from, to: to} |
| }; |
| |
| // Signals that the marker's widget changed, and surrounding layout |
| // should be recomputed. |
| TextMarker.prototype.changed = function () { |
| var this$1 = this; |
| |
| var pos = this.find(-1, true), widget = this, cm = this.doc.cm; |
| if (!pos || !cm) { return } |
| runInOp(cm, function () { |
| var line = pos.line, lineN = lineNo(pos.line); |
| var view = findViewForLine(cm, lineN); |
| if (view) { |
| clearLineMeasurementCacheFor(view); |
| cm.curOp.selectionChanged = cm.curOp.forceUpdate = true; |
| } |
| cm.curOp.updateMaxLine = true; |
| if (!lineIsHidden(widget.doc, line) && widget.height != null) { |
| var oldHeight = widget.height; |
| widget.height = null; |
| var dHeight = widgetHeight(widget) - oldHeight; |
| if (dHeight) |
| { updateLineHeight(line, line.height + dHeight); } |
| } |
| signalLater(cm, "markerChanged", cm, this$1); |
| }); |
| }; |
| |
| TextMarker.prototype.attachLine = function (line) { |
| if (!this.lines.length && this.doc.cm) { |
| var op = this.doc.cm.curOp; |
| if (!op.maybeHiddenMarkers || indexOf(op.maybeHiddenMarkers, this) == -1) |
| { (op.maybeUnhiddenMarkers || (op.maybeUnhiddenMarkers = [])).push(this); } |
| } |
| this.lines.push(line); |
| }; |
| |
| TextMarker.prototype.detachLine = function (line) { |
| this.lines.splice(indexOf(this.lines, line), 1); |
| if (!this.lines.length && this.doc.cm) { |
| var op = this.doc.cm.curOp |
| ;(op.maybeHiddenMarkers || (op.maybeHiddenMarkers = [])).push(this); |
| } |
| }; |
| eventMixin(TextMarker); |
| |
| // Create a marker, wire it up to the right lines, and |
| function markText(doc, from, to, options, type) { |
| // Shared markers (across linked documents) are handled separately |
| // (markTextShared will call out to this again, once per |
| // document). |
| if (options && options.shared) { return markTextShared(doc, from, to, options, type) } |
| // Ensure we are in an operation. |
| if (doc.cm && !doc.cm.curOp) { return operation(doc.cm, markText)(doc, from, to, options, type) } |
| |
| var marker = new TextMarker(doc, type), diff = cmp(from, to); |
| if (options) { copyObj(options, marker, false); } |
| // Don't connect empty markers unless clearWhenEmpty is false |
| if (diff > 0 || diff == 0 && marker.clearWhenEmpty !== false) |
| { return marker } |
| if (marker.replacedWith) { |
| // Showing up as a widget implies collapsed (widget replaces text) |
| marker.collapsed = true; |
| marker.widgetNode = eltP("span", [marker.replacedWith], "CodeMirror-widget"); |
| if (!options.handleMouseEvents) { marker.widgetNode.setAttribute("cm-ignore-events", "true"); } |
| if (options.insertLeft) { marker.widgetNode.insertLeft = true; } |
| } |
| if (marker.collapsed) { |
| if (conflictingCollapsedRange(doc, from.line, from, to, marker) || |
| from.line != to.line && conflictingCollapsedRange(doc, to.line, from, to, marker)) |
| { throw new Error("Inserting collapsed marker partially overlapping an existing one") } |
| seeCollapsedSpans(); |
| } |
| |
| if (marker.addToHistory) |
| { addChangeToHistory(doc, {from: from, to: to, origin: "markText"}, doc.sel, NaN); } |
| |
| var curLine = from.line, cm = doc.cm, updateMaxLine; |
| doc.iter(curLine, to.line + 1, function (line) { |
| if (cm && marker.collapsed && !cm.options.lineWrapping && visualLine(line) == cm.display.maxLine) |
| { updateMaxLine = true; } |
| if (marker.collapsed && curLine != from.line) { updateLineHeight(line, 0); } |
| addMarkedSpan(line, new MarkedSpan(marker, |
| curLine == from.line ? from.ch : null, |
| curLine == to.line ? to.ch : null)); |
| ++curLine; |
| }); |
| // lineIsHidden depends on the presence of the spans, so needs a second pass |
| if (marker.collapsed) { doc.iter(from.line, to.line + 1, function (line) { |
| if (lineIsHidden(doc, line)) { updateLineHeight(line, 0); } |
| }); } |
| |
| if (marker.clearOnEnter) { on(marker, "beforeCursorEnter", function () { return marker.clear(); }); } |
| |
| if (marker.readOnly) { |
| seeReadOnlySpans(); |
| if (doc.history.done.length || doc.history.undone.length) |
| { doc.clearHistory(); } |
| } |
| if (marker.collapsed) { |
| marker.id = ++nextMarkerId; |
| marker.atomic = true; |
| } |
| if (cm) { |
| // Sync editor state |
| if (updateMaxLine) { cm.curOp.updateMaxLine = true; } |
| if (marker.collapsed) |
| { regChange(cm, from.line, to.line + 1); } |
| else if (marker.className || marker.startStyle || marker.endStyle || marker.css || |
| marker.attributes || marker.title) |
| { for (var i = from.line; i <= to.line; i++) { regLineChange(cm, i, "text"); } } |
| if (marker.atomic) { reCheckSelection(cm.doc); } |
| signalLater(cm, "markerAdded", cm, marker); |
| } |
| return marker |
| } |
| |
| // SHARED TEXTMARKERS |
| |
| // A shared marker spans multiple linked documents. It is |
| // implemented as a meta-marker-object controlling multiple normal |
| // markers. |
| var SharedTextMarker = function(markers, primary) { |
| this.markers = markers; |
| this.primary = primary; |
| for (var i = 0; i < markers.length; ++i) |
| { markers[i].parent = this; } |
| }; |
| |
| SharedTextMarker.prototype.clear = function () { |
| if (this.explicitlyCleared) { return } |
| this.explicitlyCleared = true; |
| for (var i = 0; i < this.markers.length; ++i) |
| { this.markers[i].clear(); } |
| signalLater(this, "clear"); |
| }; |
| |
| SharedTextMarker.prototype.find = function (side, lineObj) { |
| return this.primary.find(side, lineObj) |
| }; |
| eventMixin(SharedTextMarker); |
| |
| function markTextShared(doc, from, to, options, type) { |
| options = copyObj(options); |
| options.shared = false; |
| var markers = [markText(doc, from, to, options, type)], primary = markers[0]; |
| var widget = options.widgetNode; |
| linkedDocs(doc, function (doc) { |
| if (widget) { options.widgetNode = widget.cloneNode(true); } |
| markers.push(markText(doc, clipPos(doc, from), clipPos(doc, to), options, type)); |
| for (var i = 0; i < doc.linked.length; ++i) |
| { if (doc.linked[i].isParent) { return } } |
| primary = lst(markers); |
| }); |
| return new SharedTextMarker(markers, primary) |
| } |
| |
| function findSharedMarkers(doc) { |
| return doc.findMarks(Pos(doc.first, 0), doc.clipPos(Pos(doc.lastLine())), function (m) { return m.parent; }) |
| } |
| |
| function copySharedMarkers(doc, markers) { |
| for (var i = 0; i < markers.length; i++) { |
| var marker = markers[i], pos = marker.find(); |
| var mFrom = doc.clipPos(pos.from), mTo = doc.clipPos(pos.to); |
| if (cmp(mFrom, mTo)) { |
| var subMark = markText(doc, mFrom, mTo, marker.primary, marker.primary.type); |
| marker.markers.push(subMark); |
| subMark.parent = marker; |
| } |
| } |
| } |
| |
| function detachSharedMarkers(markers) { |
| var loop = function ( i ) { |
| var marker = markers[i], linked = [marker.primary.doc]; |
| linkedDocs(marker.primary.doc, function (d) { return linked.push(d); }); |
| for (var j = 0; j < marker.markers.length; j++) { |
| var subMarker = marker.markers[j]; |
| if (indexOf(linked, subMarker.doc) == -1) { |
| subMarker.parent = null; |
| marker.markers.splice(j--, 1); |
| } |
| } |
| }; |
| |
| for (var i = 0; i < markers.length; i++) loop( i ); |
| } |
| |
| var nextDocId = 0; |
| var Doc = function(text, mode, firstLine, lineSep, direction) { |
| if (!(this instanceof Doc)) { return new Doc(text, mode, firstLine, lineSep, direction) } |
| if (firstLine == null) { firstLine = 0; } |
| |
| BranchChunk.call(this, [new LeafChunk([new Line("", null)])]); |
| this.first = firstLine; |
| this.scrollTop = this.scrollLeft = 0; |
| this.cantEdit = false; |
| this.cleanGeneration = 1; |
| this.modeFrontier = this.highlightFrontier = firstLine; |
| var start = Pos(firstLine, 0); |
| this.sel = simpleSelection(start); |
| this.history = new History(null); |
| this.id = ++nextDocId; |
| this.modeOption = mode; |
| this.lineSep = lineSep; |
| this.direction = (direction == "rtl") ? "rtl" : "ltr"; |
| this.extend = false; |
| |
| if (typeof text == "string") { text = this.splitLines(text); } |
| updateDoc(this, {from: start, to: start, text: text}); |
| setSelection(this, simpleSelection(start), sel_dontScroll); |
| }; |
| |
| Doc.prototype = createObj(BranchChunk.prototype, { |
| constructor: Doc, |
| // Iterate over the document. Supports two forms -- with only one |
| // argument, it calls that for each line in the document. With |
| // three, it iterates over the range given by the first two (with |
| // the second being non-inclusive). |
| iter: function(from, to, op) { |
| if (op) { this.iterN(from - this.first, to - from, op); } |
| else { this.iterN(this.first, this.first + this.size, from); } |
| }, |
| |
| // Non-public interface for adding and removing lines. |
| insert: function(at, lines) { |
| var height = 0; |
| for (var i = 0; i < lines.length; ++i) { height += lines[i].height; } |
| this.insertInner(at - this.first, lines, height); |
| }, |
| remove: function(at, n) { this.removeInner(at - this.first, n); }, |
| |
| // From here, the methods are part of the public interface. Most |
| // are also available from CodeMirror (editor) instances. |
| |
| getValue: function(lineSep) { |
| var lines = getLines(this, this.first, this.first + this.size); |
| if (lineSep === false) { return lines } |
| return lines.join(lineSep || this.lineSeparator()) |
| }, |
| setValue: docMethodOp(function(code) { |
| var top = Pos(this.first, 0), last = this.first + this.size - 1; |
| makeChange(this, {from: top, to: Pos(last, getLine(this, last).text.length), |
| text: this.splitLines(code), origin: "setValue", full: true}, true); |
| if (this.cm) { scrollToCoords(this.cm, 0, 0); } |
| setSelection(this, simpleSelection(top), sel_dontScroll); |
| }), |
| replaceRange: function(code, from, to, origin) { |
| from = clipPos(this, from); |
| to = to ? clipPos(this, to) : from; |
| replaceRange(this, code, from, to, origin); |
| }, |
| getRange: function(from, to, lineSep) { |
| var lines = getBetween(this, clipPos(this, from), clipPos(this, to)); |
| if (lineSep === false) { return lines } |
| return lines.join(lineSep || this.lineSeparator()) |
| }, |
| |
| getLine: function(line) {var l = this.getLineHandle(line); return l && l.text}, |
| |
| getLineHandle: function(line) {if (isLine(this, line)) { return getLine(this, line) }}, |
| getLineNumber: function(line) {return lineNo(line)}, |
| |
| getLineHandleVisualStart: function(line) { |
| if (typeof line == "number") { line = getLine(this, line); } |
| return visualLine(line) |
| }, |
| |
| lineCount: function() {return this.size}, |
| firstLine: function() {return this.first}, |
| lastLine: function() {return this.first + this.size - 1}, |
| |
| clipPos: function(pos) {return clipPos(this, pos)}, |
| |
| getCursor: function(start) { |
| var range$$1 = this.sel.primary(), pos; |
| if (start == null || start == "head") { pos = range$$1.head; } |
| else if (start == "anchor") { pos = range$$1.anchor; } |
| else if (start == "end" || start == "to" || start === false) { pos = range$$1.to(); } |
| else { pos = range$$1.from(); } |
| return pos |
| }, |
| listSelections: function() { return this.sel.ranges }, |
| somethingSelected: function() {return this.sel.somethingSelected()}, |
| |
| setCursor: docMethodOp(function(line, ch, options) { |
| setSimpleSelection(this, clipPos(this, typeof line == "number" ? Pos(line, ch || 0) : line), null, options); |
| }), |
| setSelection: docMethodOp(function(anchor, head, options) { |
| setSimpleSelection(this, clipPos(this, anchor), clipPos(this, head || anchor), options); |
| }), |
| extendSelection: docMethodOp(function(head, other, options) { |
| extendSelection(this, clipPos(this, head), other && clipPos(this, other), options); |
| }), |
| extendSelections: docMethodOp(function(heads, options) { |
| extendSelections(this, clipPosArray(this, heads), options); |
| }), |
| extendSelectionsBy: docMethodOp(function(f, options) { |
| var heads = map(this.sel.ranges, f); |
| extendSelections(this, clipPosArray(this, heads), options); |
| }), |
| setSelections: docMethodOp(function(ranges, primary, options) { |
| if (!ranges.length) { return } |
| var out = []; |
| for (var i = 0; i < ranges.length; i++) |
| { out[i] = new Range(clipPos(this, ranges[i].anchor), |
| clipPos(this, ranges[i].head)); } |
| if (primary == null) { primary = Math.min(ranges.length - 1, this.sel.primIndex); } |
| setSelection(this, normalizeSelection(this.cm, out, primary), options); |
| }), |
| addSelection: docMethodOp(function(anchor, head, options) { |
| var ranges = this.sel.ranges.slice(0); |
| ranges.push(new Range(clipPos(this, anchor), clipPos(this, head || anchor))); |
| setSelection(this, normalizeSelection(this.cm, ranges, ranges.length - 1), options); |
| }), |
| |
| getSelection: function(lineSep) { |
| var ranges = this.sel.ranges, lines; |
| for (var i = 0; i < ranges.length; i++) { |
| var sel = getBetween(this, ranges[i].from(), ranges[i].to()); |
| lines = lines ? lines.concat(sel) : sel; |
| } |
| if (lineSep === false) { return lines } |
| else { return lines.join(lineSep || this.lineSeparator()) } |
| }, |
| getSelections: function(lineSep) { |
| var parts = [], ranges = this.sel.ranges; |
| for (var i = 0; i < ranges.length; i++) { |
| var sel = getBetween(this, ranges[i].from(), ranges[i].to()); |
| if (lineSep !== false) { sel = sel.join(lineSep || this.lineSeparator()); } |
| parts[i] = sel; |
| } |
| return parts |
| }, |
| replaceSelection: function(code, collapse, origin) { |
| var dup = []; |
| for (var i = 0; i < this.sel.ranges.length; i++) |
| { dup[i] = code; } |
| this.replaceSelections(dup, collapse, origin || "+input"); |
| }, |
| replaceSelections: docMethodOp(function(code, collapse, origin) { |
| var changes = [], sel = this.sel; |
| for (var i = 0; i < sel.ranges.length; i++) { |
| var range$$1 = sel.ranges[i]; |
| changes[i] = {from: range$$1.from(), to: range$$1.to(), text: this.splitLines(code[i]), origin: origin}; |
| } |
| var newSel = collapse && collapse != "end" && computeReplacedSel(this, changes, collapse); |
| for (var i$1 = changes.length - 1; i$1 >= 0; i$1--) |
| { makeChange(this, changes[i$1]); } |
| if (newSel) { setSelectionReplaceHistory(this, newSel); } |
| else if (this.cm) { ensureCursorVisible(this.cm); } |
| }), |
| undo: docMethodOp(function() {makeChangeFromHistory(this, "undo");}), |
| redo: docMethodOp(function() {makeChangeFromHistory(this, "redo");}), |
| undoSelection: docMethodOp(function() {makeChangeFromHistory(this, "undo", true);}), |
| redoSelection: docMethodOp(function() {makeChangeFromHistory(this, "redo", true);}), |
| |
| setExtending: function(val) {this.extend = val;}, |
| getExtending: function() {return this.extend}, |
| |
| historySize: function() { |
| var hist = this.history, done = 0, undone = 0; |
| for (var i = 0; i < hist.done.length; i++) { if (!hist.done[i].ranges) { ++done; } } |
| for (var i$1 = 0; i$1 < hist.undone.length; i$1++) { if (!hist.undone[i$1].ranges) { ++undone; } } |
| return {undo: done, redo: undone} |
| }, |
| clearHistory: function() {this.history = new History(this.history.maxGeneration);}, |
| |
| markClean: function() { |
| this.cleanGeneration = this.changeGeneration(true); |
| }, |
| changeGeneration: function(forceSplit) { |
| if (forceSplit) |
| { this.history.lastOp = this.history.lastSelOp = this.history.lastOrigin = null; } |
| return this.history.generation |
| }, |
| isClean: function (gen) { |
| return this.history.generation == (gen || this.cleanGeneration) |
| }, |
| |
| getHistory: function() { |
| return {done: copyHistoryArray(this.history.done), |
| undone: copyHistoryArray(this.history.undone)} |
| }, |
| setHistory: function(histData) { |
| var hist = this.history = new History(this.history.maxGeneration); |
| hist.done = copyHistoryArray(histData.done.slice(0), null, true); |
| hist.undone = copyHistoryArray(histData.undone.slice(0), null, true); |
| }, |
| |
| setGutterMarker: docMethodOp(function(line, gutterID, value) { |
| return changeLine(this, line, "gutter", function (line) { |
| var markers = line.gutterMarkers || (line.gutterMarkers = {}); |
| markers[gutterID] = value; |
| if (!value && isEmpty(markers)) { line.gutterMarkers = null; } |
| return true |
| }) |
| }), |
| |
| clearGutter: docMethodOp(function(gutterID) { |
| var this$1 = this; |
| |
| this.iter(function (line) { |
| if (line.gutterMarkers && line.gutterMarkers[gutterID]) { |
| changeLine(this$1, line, "gutter", function () { |
| line.gutterMarkers[gutterID] = null; |
| if (isEmpty(line.gutterMarkers)) { line.gutterMarkers = null; } |
| return true |
| }); |
| } |
| }); |
| }), |
| |
| lineInfo: function(line) { |
| var n; |
| if (typeof line == "number") { |
| if (!isLine(this, line)) { return null } |
| n = line; |
| line = getLine(this, line); |
| if (!line) { return null } |
| } else { |
| n = lineNo(line); |
| if (n == null) { return null } |
| } |
| return {line: n, handle: line, text: line.text, gutterMarkers: line.gutterMarkers, |
| textClass: line.textClass, bgClass: line.bgClass, wrapClass: line.wrapClass, |
| widgets: line.widgets} |
| }, |
| |
| addLineClass: docMethodOp(function(handle, where, cls) { |
| return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function (line) { |
| var prop = where == "text" ? "textClass" |
| : where == "background" ? "bgClass" |
| : where == "gutter" ? "gutterClass" : "wrapClass"; |
| if (!line[prop]) { line[prop] = cls; } |
| else if (classTest(cls).test(line[prop])) { return false } |
| else { line[prop] += " " + cls; } |
| return true |
| }) |
| }), |
| removeLineClass: docMethodOp(function(handle, where, cls) { |
| return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function (line) { |
| var prop = where == "text" ? "textClass" |
| : where == "background" ? "bgClass" |
| : where == "gutter" ? "gutterClass" : "wrapClass"; |
| var cur = line[prop]; |
| if (!cur) { return false } |
| else if (cls == null) { line[prop] = null; } |
| else { |
| var found = cur.match(classTest(cls)); |
| if (!found) { return false } |
| var end = found.index + found[0].length; |
| line[prop] = cur.slice(0, found.index) + (!found.index || end == cur.length ? "" : " ") + cur.slice(end) || null; |
| } |
| return true |
| }) |
| }), |
| |
| addLineWidget: docMethodOp(function(handle, node, options) { |
| return addLineWidget(this, handle, node, options) |
| }), |
| removeLineWidget: function(widget) { widget.clear(); }, |
| |
| markText: function(from, to, options) { |
| return markText(this, clipPos(this, from), clipPos(this, to), options, options && options.type || "range") |
| }, |
| setBookmark: function(pos, options) { |
| var realOpts = {replacedWith: options && (options.nodeType == null ? options.widget : options), |
| insertLeft: options && options.insertLeft, |
| clearWhenEmpty: false, shared: options && options.shared, |
| handleMouseEvents: options && options.handleMouseEvents}; |
| pos = clipPos(this, pos); |
| return markText(this, pos, pos, realOpts, "bookmark") |
| }, |
| findMarksAt: function(pos) { |
| pos = clipPos(this, pos); |
| var markers = [], spans = getLine(this, pos.line).markedSpans; |
| if (spans) { for (var i = 0; i < spans.length; ++i) { |
| var span = spans[i]; |
| if ((span.from == null || span.from <= pos.ch) && |
| (span.to == null || span.to >= pos.ch)) |
| { markers.push(span.marker.parent || span.marker); } |
| } } |
| return markers |
| }, |
| findMarks: function(from, to, filter) { |
| from = clipPos(this, from); to = clipPos(this, to); |
| var found = [], lineNo$$1 = from.line; |
| this.iter(from.line, to.line + 1, function (line) { |
| var spans = line.markedSpans; |
| if (spans) { for (var i = 0; i < spans.length; i++) { |
| var span = spans[i]; |
| if (!(span.to != null && lineNo$$1 == from.line && from.ch >= span.to || |
| span.from == null && lineNo$$1 != from.line || |
| span.from != null && lineNo$$1 == to.line && span.from >= to.ch) && |
| (!filter || filter(span.marker))) |
| { found.push(span.marker.parent || span.marker); } |
| } } |
| ++lineNo$$1; |
| }); |
| return found |
| }, |
| getAllMarks: function() { |
| var markers = []; |
| this.iter(function (line) { |
| var sps = line.markedSpans; |
| if (sps) { for (var i = 0; i < sps.length; ++i) |
| { if (sps[i].from != null) { markers.push(sps[i].marker); } } } |
| }); |
| return markers |
| }, |
| |
| posFromIndex: function(off) { |
| var ch, lineNo$$1 = this.first, sepSize = this.lineSeparator().length; |
| this.iter(function (line) { |
| var sz = line.text.length + sepSize; |
| if (sz > off) { ch = off; return true } |
| off -= sz; |
| ++lineNo$$1; |
| }); |
| return clipPos(this, Pos(lineNo$$1, ch)) |
| }, |
| indexFromPos: function (coords) { |
| coords = clipPos(this, coords); |
| var index = coords.ch; |
| if (coords.line < this.first || coords.ch < 0) { return 0 } |
| var sepSize = this.lineSeparator().length; |
| this.iter(this.first, coords.line, function (line) { // iter aborts when callback returns a truthy value |
| index += line.text.length + sepSize; |
| }); |
| return index |
| }, |
| |
| copy: function(copyHistory) { |
| var doc = new Doc(getLines(this, this.first, this.first + this.size), |
| this.modeOption, this.first, this.lineSep, this.direction); |
| doc.scrollTop = this.scrollTop; doc.scrollLeft = this.scrollLeft; |
| doc.sel = this.sel; |
| doc.extend = false; |
| if (copyHistory) { |
| doc.history.undoDepth = this.history.undoDepth; |
| doc.setHistory(this.getHistory()); |
| } |
| return doc |
| }, |
| |
| linkedDoc: function(options) { |
| if (!options) { options = {}; } |
| var from = this.first, to = this.first + this.size; |
| if (options.from != null && options.from > from) { from = options.from; } |
| if (options.to != null && options.to < to) { to = options.to; } |
| var copy = new Doc(getLines(this, from, to), options.mode || this.modeOption, from, this.lineSep, this.direction); |
| if (options.sharedHist) { copy.history = this.history |
| ; }(this.linked || (this.linked = [])).push({doc: copy, sharedHist: options.sharedHist}); |
| copy.linked = [{doc: this, isParent: true, sharedHist: options.sharedHist}]; |
| copySharedMarkers(copy, findSharedMarkers(this)); |
| return copy |
| }, |
| unlinkDoc: function(other) { |
| if (other instanceof CodeMirror) { other = other.doc; } |
| if (this.linked) { for (var i = 0; i < this.linked.length; ++i) { |
| var link = this.linked[i]; |
| if (link.doc != other) { continue } |
| this.linked.splice(i, 1); |
| other.unlinkDoc(this); |
| detachSharedMarkers(findSharedMarkers(this)); |
| break |
| } } |
| // If the histories were shared, split them again |
| if (other.history == this.history) { |
| var splitIds = [other.id]; |
| linkedDocs(other, function (doc) { return splitIds.push(doc.id); }, true); |
| other.history = new History(null); |
| other.history.done = copyHistoryArray(this.history.done, splitIds); |
| other.history.undone = copyHistoryArray(this.history.undone, splitIds); |
| } |
| }, |
| iterLinkedDocs: function(f) {linkedDocs(this, f);}, |
| |
| getMode: function() {return this.mode}, |
| getEditor: function() {return this.cm}, |
| |
| splitLines: function(str) { |
| if (this.lineSep) { return str.split(this.lineSep) } |
| return splitLinesAuto(str) |
| }, |
| lineSeparator: function() { return this.lineSep || "\n" }, |
| |
| setDirection: docMethodOp(function (dir) { |
| if (dir != "rtl") { dir = "ltr"; } |
| if (dir == this.direction) { return } |
| this.direction = dir; |
| this.iter(function (line) { return line.order = null; }); |
| if (this.cm) { directionChanged(this.cm); } |
| }) |
| }); |
| |
| // Public alias. |
| Doc.prototype.eachLine = Doc.prototype.iter; |
| |
| // Kludge to work around strange IE behavior where it'll sometimes |
| // re-fire a series of drag-related events right after the drop (#1551) |
| var lastDrop = 0; |
| |
| function onDrop(e) { |
| var cm = this; |
| clearDragCursor(cm); |
| if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) |
| { return } |
| e_preventDefault(e); |
| if (ie) { lastDrop = +new Date; } |
| var pos = posFromMouse(cm, e, true), files = e.dataTransfer.files; |
| if (!pos || cm.isReadOnly()) { return } |
| // Might be a file drop, in which case we simply extract the text |
| // and insert it. |
| if (files && files.length && window.FileReader && window.File) { |
| var n = files.length, text = Array(n), read = 0; |
| var loadFile = function (file, i) { |
| if (cm.options.allowDropFileTypes && |
| indexOf(cm.options.allowDropFileTypes, file.type) == -1) |
| { return } |
| |
| var reader = new FileReader; |
| reader.onload = operation(cm, function () { |
| var content = reader.result; |
| if (/[\x00-\x08\x0e-\x1f]{2}/.test(content)) { content = ""; } |
| text[i] = content; |
| if (++read == n) { |
| pos = clipPos(cm.doc, pos); |
| var change = {from: pos, to: pos, |
| text: cm.doc.splitLines(text.join(cm.doc.lineSeparator())), |
| origin: "paste"}; |
| makeChange(cm.doc, change); |
| setSelectionReplaceHistory(cm.doc, simpleSelection(pos, changeEnd(change))); |
| } |
| }); |
| reader.readAsText(file); |
| }; |
| for (var i = 0; i < n; ++i) { loadFile(files[i], i); } |
| } else { // Normal drop |
| // Don't do a replace if the drop happened inside of the selected text. |
| if (cm.state.draggingText && cm.doc.sel.contains(pos) > -1) { |
| cm.state.draggingText(e); |
| // Ensure the editor is re-focused |
| setTimeout(function () { return cm.display.input.focus(); }, 20); |
| return |
| } |
| try { |
| var text$1 = e.dataTransfer.getData("Text"); |
| if (text$1) { |
| var selected; |
| if (cm.state.draggingText && !cm.state.draggingText.copy) |
| { selected = cm.listSelections(); } |
| setSelectionNoUndo(cm.doc, simpleSelection(pos, pos)); |
| if (selected) { for (var i$1 = 0; i$1 < selected.length; ++i$1) |
| { replaceRange(cm.doc, "", selected[i$1].anchor, selected[i$1].head, "drag"); } } |
| cm.replaceSelection(text$1, "around", "paste"); |
| cm.display.input.focus(); |
| } |
| } |
| catch(e){} |
| } |
| } |
| |
| function onDragStart(cm, e) { |
| if (ie && (!cm.state.draggingText || +new Date - lastDrop < 100)) { e_stop(e); return } |
| if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) { return } |
| |
| e.dataTransfer.setData("Text", cm.getSelection()); |
| e.dataTransfer.effectAllowed = "copyMove"; |
| |
| // Use dummy image instead of default browsers image. |
| // Recent Safari (~6.0.2) have a tendency to segfault when this happens, so we don't do it there. |
| if (e.dataTransfer.setDragImage && !safari) { |
| var img = elt("img", null, null, "position: fixed; left: 0; top: 0;"); |
| img.src = "data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw=="; |
| if (presto) { |
| img.width = img.height = 1; |
| cm.display.wrapper.appendChild(img); |
| // Force a relayout, or Opera won't use our image for some obscure reason |
| img._top = img.offsetTop; |
| } |
| e.dataTransfer.setDragImage(img, 0, 0); |
| if (presto) { img.parentNode.removeChild(img); } |
| } |
| } |
| |
| function onDragOver(cm, e) { |
| var pos = posFromMouse(cm, e); |
| if (!pos) { return } |
| var frag = document.createDocumentFragment(); |
| drawSelectionCursor(cm, pos, frag); |
| if (!cm.display.dragCursor) { |
| cm.display.dragCursor = elt("div", null, "CodeMirror-cursors CodeMirror-dragcursors"); |
| cm.display.lineSpace.insertBefore(cm.display.dragCursor, cm.display.cursorDiv); |
| } |
| removeChildrenAndAdd(cm.display.dragCursor, frag); |
| } |
| |
| function clearDragCursor(cm) { |
| if (cm.display.dragCursor) { |
| cm.display.lineSpace.removeChild(cm.display.dragCursor); |
| cm.display.dragCursor = null; |
| } |
| } |
| |
| // These must be handled carefully, because naively registering a |
| // handler for each editor will cause the editors to never be |
| // garbage collected. |
| |
| function forEachCodeMirror(f) { |
| if (!document.getElementsByClassName) { return } |
| var byClass = document.getElementsByClassName("CodeMirror"), editors = []; |
| for (var i = 0; i < byClass.length; i++) { |
| var cm = byClass[i].CodeMirror; |
| if (cm) { editors.push(cm); } |
| } |
| if (editors.length) { editors[0].operation(function () { |
| for (var i = 0; i < editors.length; i++) { f(editors[i]); } |
| }); } |
| } |
| |
| var globalsRegistered = false; |
| function ensureGlobalHandlers() { |
| if (globalsRegistered) { return } |
| registerGlobalHandlers(); |
| globalsRegistered = true; |
| } |
| function registerGlobalHandlers() { |
| // When the window resizes, we need to refresh active editors. |
| var resizeTimer; |
| on(window, "resize", function () { |
| if (resizeTimer == null) { resizeTimer = setTimeout(function () { |
| resizeTimer = null; |
| forEachCodeMirror(onResize); |
| }, 100); } |
| }); |
| // When the window loses focus, we want to show the editor as blurred |
| on(window, "blur", function () { return forEachCodeMirror(onBlur); }); |
| } |
| // Called when the window resizes |
| function onResize(cm) { |
| var d = cm.display; |
| // Might be a text scaling operation, clear size caches. |
| d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null; |
| d.scrollbarsClipped = false; |
| cm.setSize(); |
| } |
| |
| var keyNames = { |
| 3: "Pause", 8: "Backspace", 9: "Tab", 13: "Enter", 16: "Shift", 17: "Ctrl", 18: "Alt", |
| 19: "Pause", 20: "CapsLock", 27: "Esc", 32: "Space", 33: "PageUp", 34: "PageDown", 35: "End", |
| 36: "Home", 37: "Left", 38: "Up", 39: "Right", 40: "Down", 44: "PrintScrn", 45: "Insert", |
| 46: "Delete", 59: ";", 61: "=", 91: "Mod", 92: "Mod", 93: "Mod", |
| 106: "*", 107: "=", 109: "-", 110: ".", 111: "/", 145: "ScrollLock", |
| 173: "-", 186: ";", 187: "=", 188: ",", 189: "-", 190: ".", 191: "/", 192: "`", 219: "[", 220: "\\", |
| 221: "]", 222: "'", 63232: "Up", 63233: "Down", 63234: "Left", 63235: "Right", 63272: "Delete", |
| 63273: "Home", 63275: "End", 63276: "PageUp", 63277: "PageDown", 63302: "Insert" |
| }; |
| |
| // Number keys |
| for (var i = 0; i < 10; i++) { keyNames[i + 48] = keyNames[i + 96] = String(i); } |
| // Alphabetic keys |
| for (var i$1 = 65; i$1 <= 90; i$1++) { keyNames[i$1] = String.fromCharCode(i$1); } |
| // Function keys |
| for (var i$2 = 1; i$2 <= 12; i$2++) { keyNames[i$2 + 111] = keyNames[i$2 + 63235] = "F" + i$2; } |
| |
| var keyMap = {}; |
| |
| keyMap.basic = { |
| "Left": "goCharLeft", "Right": "goCharRight", "Up": "goLineUp", "Down": "goLineDown", |
| "End": "goLineEnd", "Home": "goLineStartSmart", "PageUp": "goPageUp", "PageDown": "goPageDown", |
| "Delete": "delCharAfter", "Backspace": "delCharBefore", "Shift-Backspace": "delCharBefore", |
| "Tab": "defaultTab", "Shift-Tab": "indentAuto", |
| "Enter": "newlineAndIndent", "Insert": "toggleOverwrite", |
| "Esc": "singleSelection" |
| }; |
| // Note that the save and find-related commands aren't defined by |
| // default. User code or addons can define them. Unknown commands |
| // are simply ignored. |
| keyMap.pcDefault = { |
| "Ctrl-A": "selectAll", "Ctrl-D": "deleteLine", "Ctrl-Z": "undo", "Shift-Ctrl-Z": "redo", "Ctrl-Y": "redo", |
| "Ctrl-Home": "goDocStart", "Ctrl-End": "goDocEnd", "Ctrl-Up": "goLineUp", "Ctrl-Down": "goLineDown", |
| "Ctrl-Left": "goGroupLeft", "Ctrl-Right": "goGroupRight", "Alt-Left": "goLineStart", "Alt-Right": "goLineEnd", |
| "Ctrl-Backspace": "delGroupBefore", "Ctrl-Delete": "delGroupAfter", "Ctrl-S": "save", "Ctrl-F": "find", |
| "Ctrl-G": "findNext", "Shift-Ctrl-G": "findPrev", "Shift-Ctrl-F": "replace", "Shift-Ctrl-R": "replaceAll", |
| "Ctrl-[": "indentLess", "Ctrl-]": "indentMore", |
| "Ctrl-U": "undoSelection", "Shift-Ctrl-U": "redoSelection", "Alt-U": "redoSelection", |
| "fallthrough": "basic" |
| }; |
| // Very basic readline/emacs-style bindings, which are standard on Mac. |
| keyMap.emacsy = { |
| "Ctrl-F": "goCharRight", "Ctrl-B": "goCharLeft", "Ctrl-P": "goLineUp", "Ctrl-N": "goLineDown", |
| "Alt-F": "goWordRight", "Alt-B": "goWordLeft", "Ctrl-A": "goLineStart", "Ctrl-E": "goLineEnd", |
| "Ctrl-V": "goPageDown", "Shift-Ctrl-V": "goPageUp", "Ctrl-D": "delCharAfter", "Ctrl-H": "delCharBefore", |
| "Alt-D": "delWordAfter", "Alt-Backspace": "delWordBefore", "Ctrl-K": "killLine", "Ctrl-T": "transposeChars", |
| "Ctrl-O": "openLine" |
| }; |
| keyMap.macDefault = { |
| "Cmd-A": "selectAll", "Cmd-D": "deleteLine", "Cmd-Z": "undo", "Shift-Cmd-Z": "redo", "Cmd-Y": "redo", |
| "Cmd-Home": "goDocStart", "Cmd-Up": "goDocStart", "Cmd-End": "goDocEnd", "Cmd-Down": "goDocEnd", "Alt-Left": "goGroupLeft", |
| "Alt-Right": "goGroupRight", "Cmd-Left": "goLineLeft", "Cmd-Right": "goLineRight", "Alt-Backspace": "delGroupBefore", |
| "Ctrl-Alt-Backspace": "delGroupAfter", "Alt-Delete": "delGroupAfter", "Cmd-S": "save", "Cmd-F": "find", |
| "Cmd-G": "findNext", "Shift-Cmd-G": "findPrev", "Cmd-Alt-F": "replace", "Shift-Cmd-Alt-F": "replaceAll", |
| "Cmd-[": "indentLess", "Cmd-]": "indentMore", "Cmd-Backspace": "delWrappedLineLeft", "Cmd-Delete": "delWrappedLineRight", |
| "Cmd-U": "undoSelection", "Shift-Cmd-U": "redoSelection", "Ctrl-Up": "goDocStart", "Ctrl-Down": "goDocEnd", |
| "fallthrough": ["basic", "emacsy"] |
| }; |
| keyMap["default"] = mac ? keyMap.macDefault : keyMap.pcDefault; |
| |
| // KEYMAP DISPATCH |
| |
| function normalizeKeyName(name) { |
| var parts = name.split(/-(?!$)/); |
| name = parts[parts.length - 1]; |
| var alt, ctrl, shift, cmd; |
| for (var i = 0; i < parts.length - 1; i++) { |
| var mod = parts[i]; |
| if (/^(cmd|meta|m)$/i.test(mod)) { cmd = true; } |
| else if (/^a(lt)?$/i.test(mod)) { alt = true; } |
| else if (/^(c|ctrl|control)$/i.test(mod)) { ctrl = true; } |
| else if (/^s(hift)?$/i.test(mod)) { shift = true; } |
| else { throw new Error("Unrecognized modifier name: " + mod) } |
| } |
| if (alt) { name = "Alt-" + name; } |
| if (ctrl) { name = "Ctrl-" + name; } |
| if (cmd) { name = "Cmd-" + name; } |
| if (shift) { name = "Shift-" + name; } |
| return name |
| } |
| |
| // This is a kludge to keep keymaps mostly working as raw objects |
| // (backwards compatibility) while at the same time support features |
| // like normalization and multi-stroke key bindings. It compiles a |
| // new normalized keymap, and then updates the old object to reflect |
| // this. |
| function normalizeKeyMap(keymap) { |
| var copy = {}; |
| for (var keyname in keymap) { if (keymap.hasOwnProperty(keyname)) { |
| var value = keymap[keyname]; |
| if (/^(name|fallthrough|(de|at)tach)$/.test(keyname)) { continue } |
| if (value == "...") { delete keymap[keyname]; continue } |
| |
| var keys = map(keyname.split(" "), normalizeKeyName); |
| for (var i = 0; i < keys.length; i++) { |
| var val = (void 0), name = (void 0); |
| if (i == keys.length - 1) { |
| name = keys.join(" "); |
| val = value; |
| } else { |
| name = keys.slice(0, i + 1).join(" "); |
| val = "..."; |
| } |
| var prev = copy[name]; |
| if (!prev) { copy[name] = val; } |
| else if (prev != val) { throw new Error("Inconsistent bindings for " + name) } |
| } |
| delete keymap[keyname]; |
| } } |
| for (var prop in copy) { keymap[prop] = copy[prop]; } |
| return keymap |
| } |
| |
| function lookupKey(key, map$$1, handle, context) { |
| map$$1 = getKeyMap(map$$1); |
| var found = map$$1.call ? map$$1.call(key, context) : map$$1[key]; |
| if (found === false) { return "nothing" } |
| if (found === "...") { return "multi" } |
| if (found != null && handle(found)) { return "handled" } |
| |
| if (map$$1.fallthrough) { |
| if (Object.prototype.toString.call(map$$1.fallthrough) != "[object Array]") |
| { return lookupKey(key, map$$1.fallthrough, handle, context) } |
| for (var i = 0; i < map$$1.fallthrough.length; i++) { |
| var result = lookupKey(key, map$$1.fallthrough[i], handle, context); |
| if (result) { return result } |
| } |
| } |
| } |
| |
| // Modifier key presses don't count as 'real' key presses for the |
| // purpose of keymap fallthrough. |
| function isModifierKey(value) { |
| var name = typeof value == "string" ? value : keyNames[value.keyCode]; |
| return name == "Ctrl" || name == "Alt" || name == "Shift" || name == "Mod" |
| } |
| |
| function addModifierNames(name, event, noShift) { |
| var base = name; |
| if (event.altKey && base != "Alt") { name = "Alt-" + name; } |
| if ((flipCtrlCmd ? event.metaKey : event.ctrlKey) && base != "Ctrl") { name = "Ctrl-" + name; } |
| if ((flipCtrlCmd ? event.ctrlKey : event.metaKey) && base != "Cmd") { name = "Cmd-" + name; } |
| if (!noShift && event.shiftKey && base != "Shift") { name = "Shift-" + name; } |
| return name |
| } |
| |
| // Look up the name of a key as indicated by an event object. |
| function keyName(event, noShift) { |
| if (presto && event.keyCode == 34 && event["char"]) { return false } |
| var name = keyNames[event.keyCode]; |
| if (name == null || event.altGraphKey) { return false } |
| // Ctrl-ScrollLock has keyCode 3, same as Ctrl-Pause, |
| // so we'll use event.code when available (Chrome 48+, FF 38+, Safari 10.1+) |
| if (event.keyCode == 3 && event.code) { name = event.code; } |
| return addModifierNames(name, event, noShift) |
| } |
| |
| function getKeyMap(val) { |
| return typeof val == "string" ? keyMap[val] : val |
| } |
| |
| // Helper for deleting text near the selection(s), used to implement |
| // backspace, delete, and similar functionality. |
| function deleteNearSelection(cm, compute) { |
| var ranges = cm.doc.sel.ranges, kill = []; |
| // Build up a set of ranges to kill first, merging overlapping |
| // ranges. |
| for (var i = 0; i < ranges.length; i++) { |
| var toKill = compute(ranges[i]); |
| while (kill.length && cmp(toKill.from, lst(kill).to) <= 0) { |
| var replaced = kill.pop(); |
| if (cmp(replaced.from, toKill.from) < 0) { |
| toKill.from = replaced.from; |
| break |
| } |
| } |
| kill.push(toKill); |
| } |
| // Next, remove those actual ranges. |
| runInOp(cm, function () { |
| for (var i = kill.length - 1; i >= 0; i--) |
| { replaceRange(cm.doc, "", kill[i].from, kill[i].to, "+delete"); } |
| ensureCursorVisible(cm); |
| }); |
| } |
| |
| function moveCharLogically(line, ch, dir) { |
| var target = skipExtendingChars(line.text, ch + dir, dir); |
| return target < 0 || target > line.text.length ? null : target |
| } |
| |
| function moveLogically(line, start, dir) { |
| var ch = moveCharLogically(line, start.ch, dir); |
| return ch == null ? null : new Pos(start.line, ch, dir < 0 ? "after" : "before") |
| } |
| |
| function endOfLine(visually, cm, lineObj, lineNo, dir) { |
| if (visually) { |
| var order = getOrder(lineObj, cm.doc.direction); |
| if (order) { |
| var part = dir < 0 ? lst(order) : order[0]; |
| var moveInStorageOrder = (dir < 0) == (part.level == 1); |
| var sticky = moveInStorageOrder ? "after" : "before"; |
| var ch; |
| // With a wrapped rtl chunk (possibly spanning multiple bidi parts), |
| // it could be that the last bidi part is not on the last visual line, |
| // since visual lines contain content order-consecutive chunks. |
| // Thus, in rtl, we are looking for the first (content-order) character |
| // in the rtl chunk that is on the last line (that is, the same line |
| // as the last (content-order) character). |
| if (part.level > 0 || cm.doc.direction == "rtl") { |
| var prep = prepareMeasureForLine(cm, lineObj); |
| ch = dir < 0 ? lineObj.text.length - 1 : 0; |
| var targetTop = measureCharPrepared(cm, prep, ch).top; |
| ch = findFirst(function (ch) { return measureCharPrepared(cm, prep, ch).top == targetTop; }, (dir < 0) == (part.level == 1) ? part.from : part.to - 1, ch); |
| if (sticky == "before") { ch = moveCharLogically(lineObj, ch, 1); } |
| } else { ch = dir < 0 ? part.to : part.from; } |
| return new Pos(lineNo, ch, sticky) |
| } |
| } |
| return new Pos(lineNo, dir < 0 ? lineObj.text.length : 0, dir < 0 ? "before" : "after") |
| } |
| |
| function moveVisually(cm, line, start, dir) { |
| var bidi = getOrder(line, cm.doc.direction); |
| if (!bidi) { return moveLogically(line, start, dir) } |
| if (start.ch >= line.text.length) { |
| start.ch = line.text.length; |
| start.sticky = "before"; |
| } else if (start.ch <= 0) { |
| start.ch = 0; |
| start.sticky = "after"; |
| } |
| var partPos = getBidiPartAt(bidi, start.ch, start.sticky), part = bidi[partPos]; |
| if (cm.doc.direction == "ltr" && part.level % 2 == 0 && (dir > 0 ? part.to > start.ch : part.from < start.ch)) { |
| // Case 1: We move within an ltr part in an ltr editor. Even with wrapped lines, |
| // nothing interesting happens. |
| return moveLogically(line, start, dir) |
| } |
| |
| var mv = function (pos, dir) { return moveCharLogically(line, pos instanceof Pos ? pos.ch : pos, dir); }; |
| var prep; |
| var getWrappedLineExtent = function (ch) { |
| if (!cm.options.lineWrapping) { return {begin: 0, end: line.text.length} } |
| prep = prep || prepareMeasureForLine(cm, line); |
| return wrappedLineExtentChar(cm, line, prep, ch) |
| }; |
| var wrappedLineExtent = getWrappedLineExtent(start.sticky == "before" ? mv(start, -1) : start.ch); |
| |
| if (cm.doc.direction == "rtl" || part.level == 1) { |
| var moveInStorageOrder = (part.level == 1) == (dir < 0); |
| var ch = mv(start, moveInStorageOrder ? 1 : -1); |
| if (ch != null && (!moveInStorageOrder ? ch >= part.from && ch >= wrappedLineExtent.begin : ch <= part.to && ch <= wrappedLineExtent.end)) { |
| // Case 2: We move within an rtl part or in an rtl editor on the same visual line |
| var sticky = moveInStorageOrder ? "before" : "after"; |
| return new Pos(start.line, ch, sticky) |
| } |
| } |
| |
| // Case 3: Could not move within this bidi part in this visual line, so leave |
| // the current bidi part |
| |
| var searchInVisualLine = function (partPos, dir, wrappedLineExtent) { |
| var getRes = function (ch, moveInStorageOrder) { return moveInStorageOrder |
| ? new Pos(start.line, mv(ch, 1), "before") |
| : new Pos(start.line, ch, "after"); }; |
| |
| for (; partPos >= 0 && partPos < bidi.length; partPos += dir) { |
| var part = bidi[partPos]; |
| var moveInStorageOrder = (dir > 0) == (part.level != 1); |
| var ch = moveInStorageOrder ? wrappedLineExtent.begin : mv(wrappedLineExtent.end, -1); |
| if (part.from <= ch && ch < part.to) { return getRes(ch, moveInStorageOrder) } |
| ch = moveInStorageOrder ? part.from : mv(part.to, -1); |
| if (wrappedLineExtent.begin <= ch && ch < wrappedLineExtent.end) { return getRes(ch, moveInStorageOrder) } |
| } |
| }; |
| |
| // Case 3a: Look for other bidi parts on the same visual line |
| var res = searchInVisualLine(partPos + dir, dir, wrappedLineExtent); |
| if (res) { return res } |
| |
| // Case 3b: Look for other bidi parts on the next visual line |
| var nextCh = dir > 0 ? wrappedLineExtent.end : mv(wrappedLineExtent.begin, -1); |
| if (nextCh != null && !(dir > 0 && nextCh == line.text.length)) { |
| res = searchInVisualLine(dir > 0 ? 0 : bidi.length - 1, dir, getWrappedLineExtent(nextCh)); |
| if (res) { return res } |
| } |
| |
| // Case 4: Nowhere to move |
| return null |
| } |
| |
| // Commands are parameter-less actions that can be performed on an |
| // editor, mostly used for keybindings. |
| var commands = { |
| selectAll: selectAll, |
| singleSelection: function (cm) { return cm.setSelection(cm.getCursor("anchor"), cm.getCursor("head"), sel_dontScroll); }, |
| killLine: function (cm) { return deleteNearSelection(cm, function (range) { |
| if (range.empty()) { |
| var len = getLine(cm.doc, range.head.line).text.length; |
| if (range.head.ch == len && range.head.line < cm.lastLine()) |
| { return {from: range.head, to: Pos(range.head.line + 1, 0)} } |
| else |
| { return {from: range.head, to: Pos(range.head.line, len)} } |
| } else { |
| return {from: range.from(), to: range.to()} |
| } |
| }); }, |
| deleteLine: function (cm) { return deleteNearSelection(cm, function (range) { return ({ |
| from: Pos(range.from().line, 0), |
| to: clipPos(cm.doc, Pos(range.to().line + 1, 0)) |
| }); }); }, |
| delLineLeft: function (cm) { return deleteNearSelection(cm, function (range) { return ({ |
| from: Pos(range.from().line, 0), to: range.from() |
| }); }); }, |
| delWrappedLineLeft: function (cm) { return deleteNearSelection(cm, function (range) { |
| var top = cm.charCoords(range.head, "div").top + 5; |
| var leftPos = cm.coordsChar({left: 0, top: top}, "div"); |
| return {from: leftPos, to: range.from()} |
| }); }, |
| delWrappedLineRight: function (cm) { return deleteNearSelection(cm, function (range) { |
| var top = cm.charCoords(range.head, "div").top + 5; |
| var rightPos = cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div"); |
| return {from: range.from(), to: rightPos } |
| }); }, |
| undo: function (cm) { return cm.undo(); }, |
| redo: function (cm) { return cm.redo(); }, |
| undoSelection: function (cm) { return cm.undoSelection(); }, |
| redoSelection: function (cm) { return cm.redoSelection(); }, |
| goDocStart: function (cm) { return cm.extendSelection(Pos(cm.firstLine(), 0)); }, |
| goDocEnd: function (cm) { return cm.extendSelection(Pos(cm.lastLine())); }, |
| goLineStart: function (cm) { return cm.extendSelectionsBy(function (range) { return lineStart(cm, range.head.line); }, |
| {origin: "+move", bias: 1} |
| ); }, |
| goLineStartSmart: function (cm) { return cm.extendSelectionsBy(function (range) { return lineStartSmart(cm, range.head); }, |
| {origin: "+move", bias: 1} |
| ); }, |
| goLineEnd: function (cm) { return cm.extendSelectionsBy(function (range) { return lineEnd(cm, range.head.line); }, |
| {origin: "+move", bias: -1} |
| ); }, |
| goLineRight: function (cm) { return cm.extendSelectionsBy(function (range) { |
| var top = cm.cursorCoords(range.head, "div").top + 5; |
| return cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div") |
| }, sel_move); }, |
| goLineLeft: function (cm) { return cm.extendSelectionsBy(function (range) { |
| var top = cm.cursorCoords(range.head, "div").top + 5; |
| return cm.coordsChar({left: 0, top: top}, "div") |
| }, sel_move); }, |
| goLineLeftSmart: function (cm) { return cm.extendSelectionsBy(function (range) { |
| var top = cm.cursorCoords(range.head, "div").top + 5; |
| var pos = cm.coordsChar({left: 0, top: top}, "div"); |
| if (pos.ch < cm.getLine(pos.line).search(/\S/)) { return lineStartSmart(cm, range.head) } |
| return pos |
| }, sel_move); }, |
| goLineUp: function (cm) { return cm.moveV(-1, "line"); }, |
| goLineDown: function (cm) { return cm.moveV(1, "line"); }, |
| goPageUp: function (cm) { return cm.moveV(-1, "page"); }, |
| goPageDown: function (cm) { return cm.moveV(1, "page"); }, |
| goCharLeft: function (cm) { return cm.moveH(-1, "char"); }, |
| goCharRight: function (cm) { return cm.moveH(1, "char"); }, |
| goColumnLeft: function (cm) { return cm.moveH(-1, "column"); }, |
| goColumnRight: function (cm) { return cm.moveH(1, "column"); }, |
| goWordLeft: function (cm) { return cm.moveH(-1, "word"); }, |
| goGroupRight: function (cm) { return cm.moveH(1, "group"); }, |
| goGroupLeft: function (cm) { return cm.moveH(-1, "group"); }, |
| goWordRight: function (cm) { return cm.moveH(1, "word"); }, |
| delCharBefore: function (cm) { return cm.deleteH(-1, "char"); }, |
| delCharAfter: function (cm) { return cm.deleteH(1, "char"); }, |
| delWordBefore: function (cm) { return cm.deleteH(-1, "word"); }, |
| delWordAfter: function (cm) { return cm.deleteH(1, "word"); }, |
| delGroupBefore: function (cm) { return cm.deleteH(-1, "group"); }, |
| delGroupAfter: function (cm) { return cm.deleteH(1, "group"); }, |
| indentAuto: function (cm) { return cm.indentSelection("smart"); }, |
| indentMore: function (cm) { return cm.indentSelection("add"); }, |
| indentLess: function (cm) { return cm.indentSelection("subtract"); }, |
| insertTab: function (cm) { return cm.replaceSelection("\t"); }, |
| insertSoftTab: function (cm) { |
| var spaces = [], ranges = cm.listSelections(), tabSize = cm.options.tabSize; |
| for (var i = 0; i < ranges.length; i++) { |
| var pos = ranges[i].from(); |
| var col = countColumn(cm.getLine(pos.line), pos.ch, tabSize); |
| spaces.push(spaceStr(tabSize - col % tabSize)); |
| } |
| cm.replaceSelections(spaces); |
| }, |
| defaultTab: function (cm) { |
| if (cm.somethingSelected()) { cm.indentSelection("add"); } |
| else { cm.execCommand("insertTab"); } |
| }, |
| // Swap the two chars left and right of each selection's head. |
| // Move cursor behind the two swapped characters afterwards. |
| // |
| // Doesn't consider line feeds a character. |
| // Doesn't scan more than one line above to find a character. |
| // Doesn't do anything on an empty line. |
| // Doesn't do anything with non-empty selections. |
| transposeChars: function (cm) { return runInOp(cm, function () { |
| var ranges = cm.listSelections(), newSel = []; |
| for (var i = 0; i < ranges.length; i++) { |
| if (!ranges[i].empty()) { continue } |
| var cur = ranges[i].head, line = getLine(cm.doc, cur.line).text; |
| if (line) { |
| if (cur.ch == line.length) { cur = new Pos(cur.line, cur.ch - 1); } |
| if (cur.ch > 0) { |
| cur = new Pos(cur.line, cur.ch + 1); |
| cm.replaceRange(line.charAt(cur.ch - 1) + line.charAt(cur.ch - 2), |
| Pos(cur.line, cur.ch - 2), cur, "+transpose"); |
| } else if (cur.line > cm.doc.first) { |
| var prev = getLine(cm.doc, cur.line - 1).text; |
| if (prev) { |
| cur = new Pos(cur.line, 1); |
| cm.replaceRange(line.charAt(0) + cm.doc.lineSeparator() + |
| prev.charAt(prev.length - 1), |
| Pos(cur.line - 1, prev.length - 1), cur, "+transpose"); |
| } |
| } |
| } |
| newSel.push(new Range(cur, cur)); |
| } |
| cm.setSelections(newSel); |
| }); }, |
| newlineAndIndent: function (cm) { return runInOp(cm, function () { |
| var sels = cm.listSelections(); |
| for (var i = sels.length - 1; i >= 0; i--) |
| { cm.replaceRange(cm.doc.lineSeparator(), sels[i].anchor, sels[i].head, "+input"); } |
| sels = cm.listSelections(); |
| for (var i$1 = 0; i$1 < sels.length; i$1++) |
| { cm.indentLine(sels[i$1].from().line, null, true); } |
| ensureCursorVisible(cm); |
| }); }, |
| openLine: function (cm) { return cm.replaceSelection("\n", "start"); }, |
| toggleOverwrite: function (cm) { return cm.toggleOverwrite(); } |
| }; |
| |
| |
| function lineStart(cm, lineN) { |
| var line = getLine(cm.doc, lineN); |
| var visual = visualLine(line); |
| if (visual != line) { lineN = lineNo(visual); } |
| return endOfLine(true, cm, visual, lineN, 1) |
| } |
| function lineEnd(cm, lineN) { |
| var line = getLine(cm.doc, lineN); |
| var visual = visualLineEnd(line); |
| if (visual != line) { lineN = lineNo(visual); } |
| return endOfLine(true, cm, line, lineN, -1) |
| } |
| function lineStartSmart(cm, pos) { |
| var start = lineStart(cm, pos.line); |
| var line = getLine(cm.doc, start.line); |
| var order = getOrder(line, cm.doc.direction); |
| if (!order || order[0].level == 0) { |
| var firstNonWS = Math.max(0, line.text.search(/\S/)); |
| var inWS = pos.line == start.line && pos.ch <= firstNonWS && pos.ch; |
| return Pos(start.line, inWS ? 0 : firstNonWS, start.sticky) |
| } |
| return start |
| } |
| |
| // Run a handler that was bound to a key. |
| function doHandleBinding(cm, bound, dropShift) { |
| if (typeof bound == "string") { |
| bound = commands[bound]; |
| if (!bound) { return false } |
| } |
| // Ensure previous input has been read, so that the handler sees a |
| // consistent view of the document |
| cm.display.input.ensurePolled(); |
| var prevShift = cm.display.shift, done = false; |
| try { |
| if (cm.isReadOnly()) { cm.state.suppressEdits = true; } |
| if (dropShift) { cm.display.shift = false; } |
| done = bound(cm) != Pass; |
| } finally { |
| cm.display.shift = prevShift; |
| cm.state.suppressEdits = false; |
| } |
| return done |
| } |
| |
| function lookupKeyForEditor(cm, name, handle) { |
| for (var i = 0; i < cm.state.keyMaps.length; i++) { |
| var result = lookupKey(name, cm.state.keyMaps[i], handle, cm); |
| if (result) { return result } |
| } |
| return (cm.options.extraKeys && lookupKey(name, cm.options.extraKeys, handle, cm)) |
| || lookupKey(name, cm.options.keyMap, handle, cm) |
| } |
| |
| // Note that, despite the name, this function is also used to check |
| // for bound mouse clicks. |
| |
| var stopSeq = new Delayed; |
| |
| function dispatchKey(cm, name, e, handle) { |
| var seq = cm.state.keySeq; |
| if (seq) { |
| if (isModifierKey(name)) { return "handled" } |
| if (/\'$/.test(name)) |
| { cm.state.keySeq = null; } |
| else |
| { stopSeq.set(50, function () { |
| if (cm.state.keySeq == seq) { |
| cm.state.keySeq = null; |
| cm.display.input.reset(); |
| } |
| }); } |
| if (dispatchKeyInner(cm, seq + " " + name, e, handle)) { return true } |
| } |
| return dispatchKeyInner(cm, name, e, handle) |
| } |
| |
| function dispatchKeyInner(cm, name, e, handle) { |
| var result = lookupKeyForEditor(cm, name, handle); |
| |
| if (result == "multi") |
| { cm.state.keySeq = name; } |
| if (result == "handled") |
| { signalLater(cm, "keyHandled", cm, name, e); } |
| |
| if (result == "handled" || result == "multi") { |
| e_preventDefault(e); |
| restartBlink(cm); |
| } |
| |
| return !!result |
| } |
| |
| // Handle a key from the keydown event. |
| function handleKeyBinding(cm, e) { |
| var name = keyName(e, true); |
| if (!name) { return false } |
| |
| if (e.shiftKey && !cm.state.keySeq) { |
| // First try to resolve full name (including 'Shift-'). Failing |
| // that, see if there is a cursor-motion command (starting with |
| // 'go') bound to the keyname without 'Shift-'. |
| return dispatchKey(cm, "Shift-" + name, e, function (b) { return doHandleBinding(cm, b, true); }) |
| || dispatchKey(cm, name, e, function (b) { |
| if (typeof b == "string" ? /^go[A-Z]/.test(b) : b.motion) |
| { return doHandleBinding(cm, b) } |
| }) |
| } else { |
| return dispatchKey(cm, name, e, function (b) { return doHandleBinding(cm, b); }) |
| } |
| } |
| |
| // Handle a key from the keypress event |
| function handleCharBinding(cm, e, ch) { |
| return dispatchKey(cm, "'" + ch + "'", e, function (b) { return doHandleBinding(cm, b, true); }) |
| } |
| |
| var lastStoppedKey = null; |
| function onKeyDown(e) { |
| var cm = this; |
| cm.curOp.focus = activeElt(); |
| if (signalDOMEvent(cm, e)) { return } |
| // IE does strange things with escape. |
| if (ie && ie_version < 11 && e.keyCode == 27) { e.returnValue = false; } |
| var code = e.keyCode; |
| cm.display.shift = code == 16 || e.shiftKey; |
| var handled = handleKeyBinding(cm, e); |
| if (presto) { |
| lastStoppedKey = handled ? code : null; |
| // Opera has no cut event... we try to at least catch the key combo |
| if (!handled && code == 88 && !hasCopyEvent && (mac ? e.metaKey : e.ctrlKey)) |
| { cm.replaceSelection("", null, "cut"); } |
| } |
| |
| // Turn mouse into crosshair when Alt is held on Mac. |
| if (code == 18 && !/\bCodeMirror-crosshair\b/.test(cm.display.lineDiv.className)) |
| { showCrossHair(cm); } |
| } |
| |
| function showCrossHair(cm) { |
| var lineDiv = cm.display.lineDiv; |
| addClass(lineDiv, "CodeMirror-crosshair"); |
| |
| function up(e) { |
| if (e.keyCode == 18 || !e.altKey) { |
| rmClass(lineDiv, "CodeMirror-crosshair"); |
| off(document, "keyup", up); |
| off(document, "mouseover", up); |
| } |
| } |
| on(document, "keyup", up); |
| on(document, "mouseover", up); |
| } |
| |
| function onKeyUp(e) { |
| if (e.keyCode == 16) { this.doc.sel.shift = false; } |
| signalDOMEvent(this, e); |
| } |
| |
| function onKeyPress(e) { |
| var cm = this; |
| if (eventInWidget(cm.display, e) || signalDOMEvent(cm, e) || e.ctrlKey && !e.altKey || mac && e.metaKey) { return } |
| var keyCode = e.keyCode, charCode = e.charCode; |
| if (presto && keyCode == lastStoppedKey) {lastStoppedKey = null; e_preventDefault(e); return} |
| if ((presto && (!e.which || e.which < 10)) && handleKeyBinding(cm, e)) { return } |
| var ch = String.fromCharCode(charCode == null ? keyCode : charCode); |
| // Some browsers fire keypress events for backspace |
| if (ch == "\x08") { return } |
| if (handleCharBinding(cm, e, ch)) { return } |
| cm.display.input.onKeyPress(e); |
| } |
| |
| var DOUBLECLICK_DELAY = 400; |
| |
| var PastClick = function(time, pos, button) { |
| this.time = time; |
| this.pos = pos; |
| this.button = button; |
| }; |
| |
| PastClick.prototype.compare = function (time, pos, button) { |
| return this.time + DOUBLECLICK_DELAY > time && |
| cmp(pos, this.pos) == 0 && button == this.button |
| }; |
| |
| var lastClick, lastDoubleClick; |
| function clickRepeat(pos, button) { |
| var now = +new Date; |
| if (lastDoubleClick && lastDoubleClick.compare(now, pos, button)) { |
| lastClick = lastDoubleClick = null; |
| return "triple" |
| } else if (lastClick && lastClick.compare(now, pos, button)) { |
| lastDoubleClick = new PastClick(now, pos, button); |
| lastClick = null; |
| return "double" |
| } else { |
| lastClick = new PastClick(now, pos, button); |
| lastDoubleClick = null; |
| return "single" |
| } |
| } |
| |
| // A mouse down can be a single click, double click, triple click, |
| // start of selection drag, start of text drag, new cursor |
| // (ctrl-click), rectangle drag (alt-drag), or xwin |
| // middle-click-paste. Or it might be a click on something we should |
| // not interfere with, such as a scrollbar or widget. |
| function onMouseDown(e) { |
| var cm = this, display = cm.display; |
| if (signalDOMEvent(cm, e) || display.activeTouch && display.input.supportsTouch()) { return } |
| display.input.ensurePolled(); |
| display.shift = e.shiftKey; |
| |
| if (eventInWidget(display, e)) { |
| if (!webkit) { |
| // Briefly turn off draggability, to allow widgets to do |
| // normal dragging things. |
| display.scroller.draggable = false; |
| setTimeout(function () { return display.scroller.draggable = true; }, 100); |
| } |
| return |
| } |
| if (clickInGutter(cm, e)) { return } |
| var pos = posFromMouse(cm, e), button = e_button(e), repeat = pos ? clickRepeat(pos, button) : "single"; |
| window.focus(); |
| |
| // #3261: make sure, that we're not starting a second selection |
| if (button == 1 && cm.state.selectingText) |
| { cm.state.selectingText(e); } |
| |
| if (pos && handleMappedButton(cm, button, pos, repeat, e)) { return } |
| |
| if (button == 1) { |
| if (pos) { leftButtonDown(cm, pos, repeat, e); } |
| else if (e_target(e) == display.scroller) { e_preventDefault(e); } |
| } else if (button == 2) { |
| if (pos) { extendSelection(cm.doc, pos); } |
| setTimeout(function () { return display.input.focus(); }, 20); |
| } else if (button == 3) { |
| if (captureRightClick) { cm.display.input.onContextMenu(e); } |
| else { delayBlurEvent(cm); } |
| } |
| } |
| |
| function handleMappedButton(cm, button, pos, repeat, event) { |
| var name = "Click"; |
| if (repeat == "double") { name = "Double" + name; } |
| else if (repeat == "triple") { name = "Triple" + name; } |
| name = (button == 1 ? "Left" : button == 2 ? "Middle" : "Right") + name; |
| |
| return dispatchKey(cm, addModifierNames(name, event), event, function (bound) { |
| if (typeof bound == "string") { bound = commands[bound]; } |
| if (!bound) { return false } |
| var done = false; |
| try { |
| if (cm.isReadOnly()) { cm.state.suppressEdits = true; } |
| done = bound(cm, pos) != Pass; |
| } finally { |
| cm.state.suppressEdits = false; |
| } |
| return done |
| }) |
| } |
| |
| function configureMouse(cm, repeat, event) { |
| var option = cm.getOption("configureMouse"); |
| var value = option ? option(cm, repeat, event) : {}; |
| if (value.unit == null) { |
| var rect = chromeOS ? event.shiftKey && event.metaKey : event.altKey; |
| value.unit = rect ? "rectangle" : repeat == "single" ? "char" : repeat == "double" ? "word" : "line"; |
| } |
| if (value.extend == null || cm.doc.extend) { value.extend = cm.doc.extend || event.shiftKey; } |
| if (value.addNew == null) { value.addNew = mac ? event.metaKey : event.ctrlKey; } |
| if (value.moveOnDrag == null) { value.moveOnDrag = !(mac ? event.altKey : event.ctrlKey); } |
| return value |
| } |
| |
| function leftButtonDown(cm, pos, repeat, event) { |
| if (ie) { setTimeout(bind(ensureFocus, cm), 0); } |
| else { cm.curOp.focus = activeElt(); } |
| |
| var behavior = configureMouse(cm, repeat, event); |
| |
| var sel = cm.doc.sel, contained; |
| if (cm.options.dragDrop && dragAndDrop && !cm.isReadOnly() && |
| repeat == "single" && (contained = sel.contains(pos)) > -1 && |
| (cmp((contained = sel.ranges[contained]).from(), pos) < 0 || pos.xRel > 0) && |
| (cmp(contained.to(), pos) > 0 || pos.xRel < 0)) |
| { leftButtonStartDrag(cm, event, pos, behavior); } |
| else |
| { leftButtonSelect(cm, event, pos, behavior); } |
| } |
| |
| // Start a text drag. When it ends, see if any dragging actually |
| // happen, and treat as a click if it didn't. |
| function leftButtonStartDrag(cm, event, pos, behavior) { |
| var display = cm.display, moved = false; |
| var dragEnd = operation(cm, function (e) { |
| if (webkit) { display.scroller.draggable = false; } |
| cm.state.draggingText = false; |
| off(display.wrapper.ownerDocument, "mouseup", dragEnd); |
| off(display.wrapper.ownerDocument, "mousemove", mouseMove); |
| off(display.scroller, "dragstart", dragStart); |
| off(display.scroller, "drop", dragEnd); |
| if (!moved) { |
| e_preventDefault(e); |
| if (!behavior.addNew) |
| { extendSelection(cm.doc, pos, null, null, behavior.extend); } |
| // Work around unexplainable focus problem in IE9 (#2127) and Chrome (#3081) |
| if (webkit || ie && ie_version == 9) |
| { setTimeout(function () {display.wrapper.ownerDocument.body.focus(); display.input.focus();}, 20); } |
| else |
| { display.input.focus(); } |
| } |
| }); |
| var mouseMove = function(e2) { |
| moved = moved || Math.abs(event.clientX - e2.clientX) + Math.abs(event.clientY - e2.clientY) >= 10; |
| }; |
| var dragStart = function () { return moved = true; }; |
| // Let the drag handler handle this. |
| if (webkit) { display.scroller.draggable = true; } |
| cm.state.draggingText = dragEnd; |
| dragEnd.copy = !behavior.moveOnDrag; |
| // IE's approach to draggable |
| if (display.scroller.dragDrop) { display.scroller.dragDrop(); } |
| on(display.wrapper.ownerDocument, "mouseup", dragEnd); |
| on(display.wrapper.ownerDocument, "mousemove", mouseMove); |
| on(display.scroller, "dragstart", dragStart); |
| on(display.scroller, "drop", dragEnd); |
| |
| delayBlurEvent(cm); |
| setTimeout(function () { return display.input.focus(); }, 20); |
| } |
| |
| function rangeForUnit(cm, pos, unit) { |
| if (unit == "char") { return new Range(pos, pos) } |
| if (unit == "word") { return cm.findWordAt(pos) } |
| if (unit == "line") { return new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0))) } |
| var result = unit(cm, pos); |
| return new Range(result.from, result.to) |
| } |
| |
| // Normal selection, as opposed to text dragging. |
| function leftButtonSelect(cm, event, start, behavior) { |
| var display = cm.display, doc = cm.doc; |
| e_preventDefault(event); |
| |
| var ourRange, ourIndex, startSel = doc.sel, ranges = startSel.ranges; |
| if (behavior.addNew && !behavior.extend) { |
| ourIndex = doc.sel.contains(start); |
| if (ourIndex > -1) |
| { ourRange = ranges[ourIndex]; } |
| else |
| { ourRange = new Range(start, start); } |
| } else { |
| ourRange = doc.sel.primary(); |
| ourIndex = doc.sel.primIndex; |
| } |
| |
| if (behavior.unit == "rectangle") { |
| if (!behavior.addNew) { ourRange = new Range(start, start); } |
| start = posFromMouse(cm, event, true, true); |
| ourIndex = -1; |
| } else { |
| var range$$1 = rangeForUnit(cm, start, behavior.unit); |
| if (behavior.extend) |
| { ourRange = extendRange(ourRange, range$$1.anchor, range$$1.head, behavior.extend); } |
| else |
| { ourRange = range$$1; } |
| } |
| |
| if (!behavior.addNew) { |
| ourIndex = 0; |
| setSelection(doc, new Selection([ourRange], 0), sel_mouse); |
| startSel = doc.sel; |
| } else if (ourIndex == -1) { |
| ourIndex = ranges.length; |
| setSelection(doc, normalizeSelection(cm, ranges.concat([ourRange]), ourIndex), |
| {scroll: false, origin: "*mouse"}); |
| } else if (ranges.length > 1 && ranges[ourIndex].empty() && behavior.unit == "char" && !behavior.extend) { |
| setSelection(doc, normalizeSelection(cm, ranges.slice(0, ourIndex).concat(ranges.slice(ourIndex + 1)), 0), |
| {scroll: false, origin: "*mouse"}); |
| startSel = doc.sel; |
| } else { |
| replaceOneSelection(doc, ourIndex, ourRange, sel_mouse); |
| } |
| |
| var lastPos = start; |
| function extendTo(pos) { |
| if (cmp(lastPos, pos) == 0) { return } |
| lastPos = pos; |
| |
| if (behavior.unit == "rectangle") { |
| var ranges = [], tabSize = cm.options.tabSize; |
| var startCol = countColumn(getLine(doc, start.line).text, start.ch, tabSize); |
| var posCol = countColumn(getLine(doc, pos.line).text, pos.ch, tabSize); |
| var left = Math.min(startCol, posCol), right = Math.max(startCol, posCol); |
| for (var line = Math.min(start.line, pos.line), end = Math.min(cm.lastLine(), Math.max(start.line, pos.line)); |
| line <= end; line++) { |
| var text = getLine(doc, line).text, leftPos = findColumn(text, left, tabSize); |
| if (left == right) |
| { ranges.push(new Range(Pos(line, leftPos), Pos(line, leftPos))); } |
| else if (text.length > leftPos) |
| { ranges.push(new Range(Pos(line, leftPos), Pos(line, findColumn(text, right, tabSize)))); } |
| } |
| if (!ranges.length) { ranges.push(new Range(start, start)); } |
| setSelection(doc, normalizeSelection(cm, startSel.ranges.slice(0, ourIndex).concat(ranges), ourIndex), |
| {origin: "*mouse", scroll: false}); |
| cm.scrollIntoView(pos); |
| } else { |
| var oldRange = ourRange; |
| var range$$1 = rangeForUnit(cm, pos, behavior.unit); |
| var anchor = oldRange.anchor, head; |
| if (cmp(range$$1.anchor, anchor) > 0) { |
| head = range$$1.head; |
| anchor = minPos(oldRange.from(), range$$1.anchor); |
| } else { |
| head = range$$1.anchor; |
| anchor = maxPos(oldRange.to(), range$$1.head); |
| } |
| var ranges$1 = startSel.ranges.slice(0); |
| ranges$1[ourIndex] = bidiSimplify(cm, new Range(clipPos(doc, anchor), head)); |
| setSelection(doc, normalizeSelection(cm, ranges$1, ourIndex), sel_mouse); |
| } |
| } |
| |
| var editorSize = display.wrapper.getBoundingClientRect(); |
| // Used to ensure timeout re-tries don't fire when another extend |
| // happened in the meantime (clearTimeout isn't reliable -- at |
| // least on Chrome, the timeouts still happen even when cleared, |
| // if the clear happens after their scheduled firing time). |
| var counter = 0; |
| |
| function extend(e) { |
| var curCount = ++counter; |
| var cur = posFromMouse(cm, e, true, behavior.unit == "rectangle"); |
| if (!cur) { return } |
| if (cmp(cur, lastPos) != 0) { |
| cm.curOp.focus = activeElt(); |
| extendTo(cur); |
| var visible = visibleLines(display, doc); |
| if (cur.line >= visible.to || cur.line < visible.from) |
| { setTimeout(operation(cm, function () {if (counter == curCount) { extend(e); }}), 150); } |
| } else { |
| var outside = e.clientY < editorSize.top ? -20 : e.clientY > editorSize.bottom ? 20 : 0; |
| if (outside) { setTimeout(operation(cm, function () { |
| if (counter != curCount) { return } |
| display.scroller.scrollTop += outside; |
| extend(e); |
| }), 50); } |
| } |
| } |
| |
| function done(e) { |
| cm.state.selectingText = false; |
| counter = Infinity; |
| // If e is null or undefined we interpret this as someone trying |
| // to explicitly cancel the selection rather than the user |
| // letting go of the mouse button. |
| if (e) { |
| e_preventDefault(e); |
| display.input.focus(); |
| } |
| off(display.wrapper.ownerDocument, "mousemove", move); |
| off(display.wrapper.ownerDocument, "mouseup", up); |
| doc.history.lastSelOrigin = null; |
| } |
| |
| var move = operation(cm, function (e) { |
| if (e.buttons === 0 || !e_button(e)) { done(e); } |
| else { extend(e); } |
| }); |
| var up = operation(cm, done); |
| cm.state.selectingText = up; |
| on(display.wrapper.ownerDocument, "mousemove", move); |
| on(display.wrapper.ownerDocument, "mouseup", up); |
| } |
| |
| // Used when mouse-selecting to adjust the anchor to the proper side |
| // of a bidi jump depending on the visual position of the head. |
| function bidiSimplify(cm, range$$1) { |
| var anchor = range$$1.anchor; |
| var head = range$$1.head; |
| var anchorLine = getLine(cm.doc, anchor.line); |
| if (cmp(anchor, head) == 0 && anchor.sticky == head.sticky) { return range$$1 } |
| var order = getOrder(anchorLine); |
| if (!order) { return range$$1 } |
| var index = getBidiPartAt(order, anchor.ch, anchor.sticky), part = order[index]; |
| if (part.from != anchor.ch && part.to != anchor.ch) { return range$$1 } |
| var boundary = index + ((part.from == anchor.ch) == (part.level != 1) ? 0 : 1); |
| if (boundary == 0 || boundary == order.length) { return range$$1 } |
| |
| // Compute the relative visual position of the head compared to the |
| // anchor (<0 is to the left, >0 to the right) |
| var leftSide; |
| if (head.line != anchor.line) { |
| leftSide = (head.line - anchor.line) * (cm.doc.direction == "ltr" ? 1 : -1) > 0; |
| } else { |
| var headIndex = getBidiPartAt(order, head.ch, head.sticky); |
| var dir = headIndex - index || (head.ch - anchor.ch) * (part.level == 1 ? -1 : 1); |
| if (headIndex == boundary - 1 || headIndex == boundary) |
| { leftSide = dir < 0; } |
| else |
| { leftSide = dir > 0; } |
| } |
| |
| var usePart = order[boundary + (leftSide ? -1 : 0)]; |
| var from = leftSide == (usePart.level == 1); |
| var ch = from ? usePart.from : usePart.to, sticky = from ? "after" : "before"; |
| return anchor.ch == ch && anchor.sticky == sticky ? range$$1 : new Range(new Pos(anchor.line, ch, sticky), head) |
| } |
| |
| |
| // Determines whether an event happened in the gutter, and fires the |
| // handlers for the corresponding event. |
| function gutterEvent(cm, e, type, prevent) { |
| var mX, mY; |
| if (e.touches) { |
| mX = e.touches[0].clientX; |
| mY = e.touches[0].clientY; |
| } else { |
| try { mX = e.clientX; mY = e.clientY; } |
| catch(e) { return false } |
| } |
| if (mX >= Math.floor(cm.display.gutters.getBoundingClientRect().right)) { return false } |
| if (prevent) { e_preventDefault(e); } |
| |
| var display = cm.display; |
| var lineBox = display.lineDiv.getBoundingClientRect(); |
| |
| if (mY > lineBox.bottom || !hasHandler(cm, type)) { return e_defaultPrevented(e) } |
| mY -= lineBox.top - display.viewOffset; |
| |
| for (var i = 0; i < cm.display.gutterSpecs.length; ++i) { |
| var g = display.gutters.childNodes[i]; |
| if (g && g.getBoundingClientRect().right >= mX) { |
| var line = lineAtHeight(cm.doc, mY); |
| var gutter = cm.display.gutterSpecs[i]; |
| signal(cm, type, cm, line, gutter.className, e); |
| return e_defaultPrevented(e) |
| } |
| } |
| } |
| |
| function clickInGutter(cm, e) { |
| return gutterEvent(cm, e, "gutterClick", true) |
| } |
| |
| // CONTEXT MENU HANDLING |
| |
| // To make the context menu work, we need to briefly unhide the |
| // textarea (making it as unobtrusive as possible) to let the |
| // right-click take effect on it. |
| function onContextMenu(cm, e) { |
| if (eventInWidget(cm.display, e) || contextMenuInGutter(cm, e)) { return } |
| if (signalDOMEvent(cm, e, "contextmenu")) { return } |
| if (!captureRightClick) { cm.display.input.onContextMenu(e); } |
| } |
| |
| function contextMenuInGutter(cm, e) { |
| if (!hasHandler(cm, "gutterContextMenu")) { return false } |
| return gutterEvent(cm, e, "gutterContextMenu", false) |
| } |
| |
| function themeChanged(cm) { |
| cm.display.wrapper.className = cm.display.wrapper.className.replace(/\s*cm-s-\S+/g, "") + |
| cm.options.theme.replace(/(^|\s)\s*/g, " cm-s-"); |
| clearCaches(cm); |
| } |
| |
| var Init = {toString: function(){return "CodeMirror.Init"}}; |
| |
| var defaults = {}; |
| var optionHandlers = {}; |
| |
| function defineOptions(CodeMirror) { |
| var optionHandlers = CodeMirror.optionHandlers; |
| |
| function option(name, deflt, handle, notOnInit) { |
| CodeMirror.defaults[name] = deflt; |
| if (handle) { optionHandlers[name] = |
| notOnInit ? function (cm, val, old) {if (old != Init) { handle(cm, val, old); }} : handle; } |
| } |
| |
| CodeMirror.defineOption = option; |
| |
| // Passed to option handlers when there is no old value. |
| CodeMirror.Init = Init; |
| |
| // These two are, on init, called from the constructor because they |
| // have to be initialized before the editor can start at all. |
| option("value", "", function (cm, val) { return cm.setValue(val); }, true); |
| option("mode", null, function (cm, val) { |
| cm.doc.modeOption = val; |
| loadMode(cm); |
| }, true); |
| |
| option("indentUnit", 2, loadMode, true); |
| option("indentWithTabs", false); |
| option("smartIndent", true); |
| option("tabSize", 4, function (cm) { |
| resetModeState(cm); |
| clearCaches(cm); |
| regChange(cm); |
| }, true); |
| |
| option("lineSeparator", null, function (cm, val) { |
| cm.doc.lineSep = val; |
| if (!val) { return } |
| var newBreaks = [], lineNo = cm.doc.first; |
| cm.doc.iter(function (line) { |
| for (var pos = 0;;) { |
| var found = line.text.indexOf(val, pos); |
| if (found == -1) { break } |
| pos = found + val.length; |
| newBreaks.push(Pos(lineNo, found)); |
| } |
| lineNo++; |
| }); |
| for (var i = newBreaks.length - 1; i >= 0; i--) |
| { replaceRange(cm.doc, val, newBreaks[i], Pos(newBreaks[i].line, newBreaks[i].ch + val.length)); } |
| }); |
| option("specialChars", /[\u0000-\u001f\u007f-\u009f\u00ad\u061c\u200b-\u200f\u2028\u2029\ufeff\ufff9-\ufffc]/g, function (cm, val, old) { |
| cm.state.specialChars = new RegExp(val.source + (val.test("\t") ? "" : "|\t"), "g"); |
| if (old != Init) { cm.refresh(); } |
| }); |
| option("specialCharPlaceholder", defaultSpecialCharPlaceholder, function (cm) { return cm.refresh(); }, true); |
| option("electricChars", true); |
| option("inputStyle", mobile ? "contenteditable" : "textarea", function () { |
| throw new Error("inputStyle can not (yet) be changed in a running editor") // FIXME |
| }, true); |
| option("spellcheck", false, function (cm, val) { return cm.getInputField().spellcheck = val; }, true); |
| option("autocorrect", false, function (cm, val) { return cm.getInputField().autocorrect = val; }, true); |
| option("autocapitalize", false, function (cm, val) { return cm.getInputField().autocapitalize = val; }, true); |
| option("rtlMoveVisually", !windows); |
| option("wholeLineUpdateBefore", true); |
| |
| option("theme", "default", function (cm) { |
| themeChanged(cm); |
| updateGutters(cm); |
| }, true); |
| option("keyMap", "default", function (cm, val, old) { |
| var next = getKeyMap(val); |
| var prev = old != Init && getKeyMap(old); |
| if (prev && prev.detach) { prev.detach(cm, next); } |
| if (next.attach) { next.attach(cm, prev || null); } |
| }); |
| option("extraKeys", null); |
| option("configureMouse", null); |
| |
| option("lineWrapping", false, wrappingChanged, true); |
| option("gutters", [], function (cm, val) { |
| cm.display.gutterSpecs = getGutters(val, cm.options.lineNumbers); |
| updateGutters(cm); |
| }, true); |
| option("fixedGutter", true, function (cm, val) { |
| cm.display.gutters.style.left = val ? compensateForHScroll(cm.display) + "px" : "0"; |
| cm.refresh(); |
| }, true); |
| option("coverGutterNextToScrollbar", false, function (cm) { return updateScrollbars(cm); }, true); |
| option("scrollbarStyle", "native", function (cm) { |
| initScrollbars(cm); |
| updateScrollbars(cm); |
| cm.display.scrollbars.setScrollTop(cm.doc.scrollTop); |
| cm.display.scrollbars.setScrollLeft(cm.doc.scrollLeft); |
| }, true); |
| option("lineNumbers", false, function (cm, val) { |
| cm.display.gutterSpecs = getGutters(cm.options.gutters, val); |
| updateGutters(cm); |
| }, true); |
| option("firstLineNumber", 1, updateGutters, true); |
| option("lineNumberFormatter", function (integer) { return integer; }, updateGutters, true); |
| option("showCursorWhenSelecting", false, updateSelection, true); |
| |
| option("resetSelectionOnContextMenu", true); |
| option("lineWiseCopyCut", true); |
| option("pasteLinesPerSelection", true); |
| option("selectionsMayTouch", false); |
| |
| option("readOnly", false, function (cm, val) { |
| if (val == "nocursor") { |
| onBlur(cm); |
| cm.display.input.blur(); |
| } |
| cm.display.input.readOnlyChanged(val); |
| }); |
| option("disableInput", false, function (cm, val) {if (!val) { cm.display.input.reset(); }}, true); |
| option("dragDrop", true, dragDropChanged); |
| option("allowDropFileTypes", null); |
| |
| option("cursorBlinkRate", 530); |
| option("cursorScrollMargin", 0); |
| option("cursorHeight", 1, updateSelection, true); |
| option("singleCursorHeightPerLine", true, updateSelection, true); |
| option("workTime", 100); |
| option("workDelay", 100); |
| option("flattenSpans", true, resetModeState, true); |
| option("addModeClass", false, resetModeState, true); |
| option("pollInterval", 100); |
| option("undoDepth", 200, function (cm, val) { return cm.doc.history.undoDepth = val; }); |
| option("historyEventDelay", 1250); |
| option("viewportMargin", 10, function (cm) { return cm.refresh(); }, true); |
| option("maxHighlightLength", 10000, resetModeState, true); |
| option("moveInputWithCursor", true, function (cm, val) { |
| if (!val) { cm.display.input.resetPosition(); } |
| }); |
| |
| option("tabindex", null, function (cm, val) { return cm.display.input.getField().tabIndex = val || ""; }); |
| option("autofocus", null); |
| option("direction", "ltr", function (cm, val) { return cm.doc.setDirection(val); }, true); |
| option("phrases", null); |
| } |
| |
| function dragDropChanged(cm, value, old) { |
| var wasOn = old && old != Init; |
| if (!value != !wasOn) { |
| var funcs = cm.display.dragFunctions; |
| var toggle = value ? on : off; |
| toggle(cm.display.scroller, "dragstart", funcs.start); |
| toggle(cm.display.scroller, "dragenter", funcs.enter); |
| toggle(cm.display.scroller, "dragover", funcs.over); |
| toggle(cm.display.scroller, "dragleave", funcs.leave); |
| toggle(cm.display.scroller, "drop", funcs.drop); |
| } |
| } |
| |
| function wrappingChanged(cm) { |
| if (cm.options.lineWrapping) { |
| addClass(cm.display.wrapper, "CodeMirror-wrap"); |
| cm.display.sizer.style.minWidth = ""; |
| cm.display.sizerWidth = null; |
| } else { |
| rmClass(cm.display.wrapper, "CodeMirror-wrap"); |
| findMaxLine(cm); |
| } |
| estimateLineHeights(cm); |
| regChange(cm); |
| clearCaches(cm); |
| setTimeout(function () { return updateScrollbars(cm); }, 100); |
| } |
| |
| // A CodeMirror instance represents an editor. This is the object |
| // that user code is usually dealing with. |
| |
| function CodeMirror(place, options) { |
| var this$1 = this; |
| |
| if (!(this instanceof CodeMirror)) { return new CodeMirror(place, options) } |
| |
| this.options = options = options ? copyObj(options) : {}; |
| // Determine effective options based on given values and defaults. |
| copyObj(defaults, options, false); |
| |
| var doc = options.value; |
| if (typeof doc == "string") { doc = new Doc(doc, options.mode, null, options.lineSeparator, options.direction); } |
| else if (options.mode) { doc.modeOption = options.mode; } |
| this.doc = doc; |
| |
| var input = new CodeMirror.inputStyles[options.inputStyle](this); |
| var display = this.display = new Display(place, doc, input, options); |
| display.wrapper.CodeMirror = this; |
| themeChanged(this); |
| if (options.lineWrapping) |
| { this.display.wrapper.className += " CodeMirror-wrap"; } |
| initScrollbars(this); |
| |
| this.state = { |
| keyMaps: [], // stores maps added by addKeyMap |
| overlays: [], // highlighting overlays, as added by addOverlay |
| modeGen: 0, // bumped when mode/overlay changes, used to invalidate highlighting info |
| overwrite: false, |
| delayingBlurEvent: false, |
| focused: false, |
| suppressEdits: false, // used to disable editing during key handlers when in readOnly mode |
| pasteIncoming: -1, cutIncoming: -1, // help recognize paste/cut edits in input.poll |
| selectingText: false, |
| draggingText: false, |
| highlight: new Delayed(), // stores highlight worker timeout |
| keySeq: null, // Unfinished key sequence |
| specialChars: null |
| }; |
| |
| if (options.autofocus && !mobile) { display.input.focus(); } |
| |
| // Override magic textarea content restore that IE sometimes does |
| // on our hidden textarea on reload |
| if (ie && ie_version < 11) { setTimeout(function () { return this$1.display.input.reset(true); }, 20); } |
| |
| registerEventHandlers(this); |
| ensureGlobalHandlers(); |
| |
| startOperation(this); |
| this.curOp.forceUpdate = true; |
| attachDoc(this, doc); |
| |
| if ((options.autofocus && !mobile) || this.hasFocus()) |
| { setTimeout(bind(onFocus, this), 20); } |
| else |
| { onBlur(this); } |
| |
| for (var opt in optionHandlers) { if (optionHandlers.hasOwnProperty(opt)) |
| { optionHandlers[opt](this, options[opt], Init); } } |
| maybeUpdateLineNumberWidth(this); |
| if (options.finishInit) { options.finishInit(this); } |
| for (var i = 0; i < initHooks.length; ++i) { initHooks[i](this); } |
| endOperation(this); |
| // Suppress optimizelegibility in Webkit, since it breaks text |
| // measuring on line wrapping boundaries. |
| if (webkit && options.lineWrapping && |
| getComputedStyle(display.lineDiv).textRendering == "optimizelegibility") |
| { display.lineDiv.style.textRendering = "auto"; } |
| } |
| |
| // The default configuration options. |
| CodeMirror.defaults = defaults; |
| // Functions to run when options are changed. |
| CodeMirror.optionHandlers = optionHandlers; |
| |
| // Attach the necessary event handlers when initializing the editor |
| function registerEventHandlers(cm) { |
| var d = cm.display; |
| on(d.scroller, "mousedown", operation(cm, onMouseDown)); |
| // Older IE's will not fire a second mousedown for a double click |
| if (ie && ie_version < 11) |
| { on(d.scroller, "dblclick", operation(cm, function (e) { |
| if (signalDOMEvent(cm, e)) { return } |
| var pos = posFromMouse(cm, e); |
| if (!pos || clickInGutter(cm, e) || eventInWidget(cm.display, e)) { return } |
| e_preventDefault(e); |
| var word = cm.findWordAt(pos); |
| extendSelection(cm.doc, word.anchor, word.head); |
| })); } |
| else |
| { on(d.scroller, "dblclick", function (e) { return signalDOMEvent(cm, e) || e_preventDefault(e); }); } |
| // Some browsers fire contextmenu *after* opening the menu, at |
| // which point we can't mess with it anymore. Context menu is |
| // handled in onMouseDown for these browsers. |
| on(d.scroller, "contextmenu", function (e) { return onContextMenu(cm, e); }); |
| |
| // Used to suppress mouse event handling when a touch happens |
| var touchFinished, prevTouch = {end: 0}; |
| function finishTouch() { |
| if (d.activeTouch) { |
| touchFinished = setTimeout(function () { return d.activeTouch = null; }, 1000); |
| prevTouch = d.activeTouch; |
| prevTouch.end = +new Date; |
| } |
| } |
| function isMouseLikeTouchEvent(e) { |
| if (e.touches.length != 1) { return false } |
| var touch = e.touches[0]; |
| return touch.radiusX <= 1 && touch.radiusY <= 1 |
| } |
| function farAway(touch, other) { |
| if (other.left == null) { return true } |
| var dx = other.left - touch.left, dy = other.top - touch.top; |
| return dx * dx + dy * dy > 20 * 20 |
| } |
| on(d.scroller, "touchstart", function (e) { |
| if (!signalDOMEvent(cm, e) && !isMouseLikeTouchEvent(e) && !clickInGutter(cm, e)) { |
| d.input.ensurePolled(); |
| clearTimeout(touchFinished); |
| var now = +new Date; |
| d.activeTouch = {start: now, moved: false, |
| prev: now - prevTouch.end <= 300 ? prevTouch : null}; |
| if (e.touches.length == 1) { |
| d.activeTouch.left = e.touches[0].pageX; |
| d.activeTouch.top = e.touches[0].pageY; |
| } |
| } |
| }); |
| on(d.scroller, "touchmove", function () { |
| if (d.activeTouch) { d.activeTouch.moved = true; } |
| }); |
| on(d.scroller, "touchend", function (e) { |
| var touch = d.activeTouch; |
| if (touch && !eventInWidget(d, e) && touch.left != null && |
| !touch.moved && new Date - touch.start < 300) { |
| var pos = cm.coordsChar(d.activeTouch, "page"), range; |
| if (!touch.prev || farAway(touch, touch.prev)) // Single tap |
| { range = new Range(pos, pos); } |
| else if (!touch.prev.prev || farAway(touch, touch.prev.prev)) // Double tap |
| { range = cm.findWordAt(pos); } |
| else // Triple tap |
| { range = new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0))); } |
| cm.setSelection(range.anchor, range.head); |
| cm.focus(); |
| e_preventDefault(e); |
| } |
| finishTouch(); |
| }); |
| on(d.scroller, "touchcancel", finishTouch); |
| |
| // Sync scrolling between fake scrollbars and real scrollable |
| // area, ensure viewport is updated when scrolling. |
| on(d.scroller, "scroll", function () { |
| if (d.scroller.clientHeight) { |
| updateScrollTop(cm, d.scroller.scrollTop); |
| setScrollLeft(cm, d.scroller.scrollLeft, true); |
| signal(cm, "scroll", cm); |
| } |
| }); |
| |
| // Listen to wheel events in order to try and update the viewport on time. |
| on(d.scroller, "mousewheel", function (e) { return onScrollWheel(cm, e); }); |
| on(d.scroller, "DOMMouseScroll", function (e) { return onScrollWheel(cm, e); }); |
| |
| // Prevent wrapper from ever scrolling |
| on(d.wrapper, "scroll", function () { return d.wrapper.scrollTop = d.wrapper.scrollLeft = 0; }); |
| |
| d.dragFunctions = { |
| enter: function (e) {if (!signalDOMEvent(cm, e)) { e_stop(e); }}, |
| over: function (e) {if (!signalDOMEvent(cm, e)) { onDragOver(cm, e); e_stop(e); }}, |
| start: function (e) { return onDragStart(cm, e); }, |
| drop: operation(cm, onDrop), |
| leave: function (e) {if (!signalDOMEvent(cm, e)) { clearDragCursor(cm); }} |
| }; |
| |
| var inp = d.input.getField(); |
| on(inp, "keyup", function (e) { return onKeyUp.call(cm, e); }); |
| on(inp, "keydown", operation(cm, onKeyDown)); |
| on(inp, "keypress", operation(cm, onKeyPress)); |
| on(inp, "focus", function (e) { return onFocus(cm, e); }); |
| on(inp, "blur", function (e) { return onBlur(cm, e); }); |
| } |
| |
| var initHooks = []; |
| CodeMirror.defineInitHook = function (f) { return initHooks.push(f); }; |
| |
| // Indent the given line. The how parameter can be "smart", |
| // "add"/null, "subtract", or "prev". When aggressive is false |
| // (typically set to true for forced single-line indents), empty |
| // lines are not indented, and places where the mode returns Pass |
| // are left alone. |
| function indentLine(cm, n, how, aggressive) { |
| var doc = cm.doc, state; |
| if (how == null) { how = "add"; } |
| if (how == "smart") { |
| // Fall back to "prev" when the mode doesn't have an indentation |
| // method. |
| if (!doc.mode.indent) { how = "prev"; } |
| else { state = getContextBefore(cm, n).state; } |
| } |
| |
| var tabSize = cm.options.tabSize; |
| var line = getLine(doc, n), curSpace = countColumn(line.text, null, tabSize); |
| if (line.stateAfter) { line.stateAfter = null; } |
| var curSpaceString = line.text.match(/^\s*/)[0], indentation; |
| if (!aggressive && !/\S/.test(line.text)) { |
| indentation = 0; |
| how = "not"; |
| } else if (how == "smart") { |
| indentation = doc.mode.indent(state, line.text.slice(curSpaceString.length), line.text); |
| if (indentation == Pass || indentation > 150) { |
| if (!aggressive) { return } |
| how = "prev"; |
| } |
| } |
| if (how == "prev") { |
| if (n > doc.first) { indentation = countColumn(getLine(doc, n-1).text, null, tabSize); } |
| else { indentation = 0; } |
| } else if (how == "add") { |
| indentation = curSpace + cm.options.indentUnit; |
| } else if (how == "subtract") { |
| indentation = curSpace - cm.options.indentUnit; |
| } else if (typeof how == "number") { |
| indentation = curSpace + how; |
| } |
| indentation = Math.max(0, indentation); |
| |
| var indentString = "", pos = 0; |
| if (cm.options.indentWithTabs) |
| { for (var i = Math.floor(indentation / tabSize); i; --i) {pos += tabSize; indentString += "\t";} } |
| if (pos < indentation) { indentString += spaceStr(indentation - pos); } |
| |
| if (indentString != curSpaceString) { |
| replaceRange(doc, indentString, Pos(n, 0), Pos(n, curSpaceString.length), "+input"); |
| line.stateAfter = null; |
| return true |
| } else { |
| // Ensure that, if the cursor was in the whitespace at the start |
| // of the line, it is moved to the end of that space. |
| for (var i$1 = 0; i$1 < doc.sel.ranges.length; i$1++) { |
| var range = doc.sel.ranges[i$1]; |
| if (range.head.line == n && range.head.ch < curSpaceString.length) { |
| var pos$1 = Pos(n, curSpaceString.length); |
| replaceOneSelection(doc, i$1, new Range(pos$1, pos$1)); |
| break |
| } |
| } |
| } |
| } |
| |
| // This will be set to a {lineWise: bool, text: [string]} object, so |
| // that, when pasting, we know what kind of selections the copied |
| // text was made out of. |
| var lastCopied = null; |
| |
| function setLastCopied(newLastCopied) { |
| lastCopied = newLastCopied; |
| } |
| |
| function applyTextInput(cm, inserted, deleted, sel, origin) { |
| var doc = cm.doc; |
| cm.display.shift = false; |
| if (!sel) { sel = doc.sel; } |
| |
| var recent = +new Date - 200; |
| var paste = origin == "paste" || cm.state.pasteIncoming > recent; |
| var textLines = splitLinesAuto(inserted), multiPaste = null; |
| // When pasting N lines into N selections, insert one line per selection |
| if (paste && sel.ranges.length > 1) { |
| if (lastCopied && lastCopied.text.join("\n") == inserted) { |
| if (sel.ranges.length % lastCopied.text.length == 0) { |
| multiPaste = []; |
| for (var i = 0; i < lastCopied.text.length; i++) |
| { multiPaste.push(doc.splitLines(lastCopied.text[i])); } |
| } |
| } else if (textLines.length == sel.ranges.length && cm.options.pasteLinesPerSelection) { |
| multiPaste = map(textLines, function (l) { return [l]; }); |
| } |
| } |
| |
| var updateInput = cm.curOp.updateInput; |
| // Normal behavior is to insert the new text into every selection |
| for (var i$1 = sel.ranges.length - 1; i$1 >= 0; i$1--) { |
| var range$$1 = sel.ranges[i$1]; |
| var from = range$$1.from(), to = range$$1.to(); |
| if (range$$1.empty()) { |
| if (deleted && deleted > 0) // Handle deletion |
| { from = Pos(from.line, from.ch - deleted); } |
| else if (cm.state.overwrite && !paste) // Handle overwrite |
| { to = Pos(to.line, Math.min(getLine(doc, to.line).text.length, to.ch + lst(textLines).length)); } |
| else if (paste && lastCopied && lastCopied.lineWise && lastCopied.text.join("\n") == inserted) |
| { from = to = Pos(from.line, 0); } |
| } |
| var changeEvent = {from: from, to: to, text: multiPaste ? multiPaste[i$1 % multiPaste.length] : textLines, |
| origin: origin || (paste ? "paste" : cm.state.cutIncoming > recent ? "cut" : "+input")}; |
| makeChange(cm.doc, changeEvent); |
| signalLater(cm, "inputRead", cm, changeEvent); |
| } |
| if (inserted && !paste) |
| { triggerElectric(cm, inserted); } |
| |
| ensureCursorVisible(cm); |
| if (cm.curOp.updateInput < 2) { cm.curOp.updateInput = updateInput; } |
| cm.curOp.typing = true; |
| cm.state.pasteIncoming = cm.state.cutIncoming = -1; |
| } |
| |
| function handlePaste(e, cm) { |
| var pasted = e.clipboardData && e.clipboardData.getData("Text"); |
| if (pasted) { |
| e.preventDefault(); |
| if (!cm.isReadOnly() && !cm.options.disableInput) |
| { runInOp(cm, function () { return applyTextInput(cm, pasted, 0, null, "paste"); }); } |
| return true |
| } |
| } |
| |
| function triggerElectric(cm, inserted) { |
| // When an 'electric' character is inserted, immediately trigger a reindent |
| if (!cm.options.electricChars || !cm.options.smartIndent) { return } |
| var sel = cm.doc.sel; |
| |
| for (var i = sel.ranges.length - 1; i >= 0; i--) { |
| var range$$1 = sel.ranges[i]; |
| if (range$$1.head.ch > 100 || (i && sel.ranges[i - 1].head.line == range$$1.head.line)) { continue } |
| var mode = cm.getModeAt(range$$1.head); |
| var indented = false; |
| if (mode.electricChars) { |
| for (var j = 0; j < mode.electricChars.length; j++) |
| { if (inserted.indexOf(mode.electricChars.charAt(j)) > -1) { |
| indented = indentLine(cm, range$$1.head.line, "smart"); |
| break |
| } } |
| } else if (mode.electricInput) { |
| if (mode.electricInput.test(getLine(cm.doc, range$$1.head.line).text.slice(0, range$$1.head.ch))) |
| { indented = indentLine(cm, range$$1.head.line, "smart"); } |
| } |
| if (indented) { signalLater(cm, "electricInput", cm, range$$1.head.line); } |
| } |
| } |
| |
| function copyableRanges(cm) { |
| var text = [], ranges = []; |
| for (var i = 0; i < cm.doc.sel.ranges.length; i++) { |
| var line = cm.doc.sel.ranges[i].head.line; |
| var lineRange = {anchor: Pos(line, 0), head: Pos(line + 1, 0)}; |
| ranges.push(lineRange); |
| text.push(cm.getRange(lineRange.anchor, lineRange.head)); |
| } |
| return {text: text, ranges: ranges} |
| } |
| |
| function disableBrowserMagic(field, spellcheck, autocorrect, autocapitalize) { |
| field.setAttribute("autocorrect", autocorrect ? "" : "off"); |
| field.setAttribute("autocapitalize", autocapitalize ? "" : "off"); |
| field.setAttribute("spellcheck", !!spellcheck); |
| } |
| |
| function hiddenTextarea() { |
| var te = elt("textarea", null, null, "position: absolute; bottom: -1em; padding: 0; width: 1px; height: 1em; outline: none"); |
| var div = elt("div", [te], null, "overflow: hidden; position: relative; width: 3px; height: 0px;"); |
| // The textarea is kept positioned near the cursor to prevent the |
| // fact that it'll be scrolled into view on input from scrolling |
| // our fake cursor out of view. On webkit, when wrap=off, paste is |
| // very slow. So make the area wide instead. |
| if (webkit) { te.style.width = "1000px"; } |
| else { te.setAttribute("wrap", "off"); } |
| // If border: 0; -- iOS fails to open keyboard (issue #1287) |
| if (ios) { te.style.border = "1px solid black"; } |
| disableBrowserMagic(te); |
| return div |
| } |
| |
| // The publicly visible API. Note that methodOp(f) means |
| // 'wrap f in an operation, performed on its `this` parameter'. |
| |
| // This is not the complete set of editor methods. Most of the |
| // methods defined on the Doc type are also injected into |
| // CodeMirror.prototype, for backwards compatibility and |
| // convenience. |
| |
| function addEditorMethods(CodeMirror) { |
| var optionHandlers = CodeMirror.optionHandlers; |
| |
| var helpers = CodeMirror.helpers = {}; |
| |
| CodeMirror.prototype = { |
| constructor: CodeMirror, |
| focus: function(){window.focus(); this.display.input.focus();}, |
| |
| setOption: function(option, value) { |
| var options = this.options, old = options[option]; |
| if (options[option] == value && option != "mode") { return } |
| options[option] = value; |
| if (optionHandlers.hasOwnProperty(option)) |
| { operation(this, optionHandlers[option])(this, value, old); } |
| signal(this, "optionChange", this, option); |
| }, |
| |
| getOption: function(option) {return this.options[option]}, |
| getDoc: function() {return this.doc}, |
| |
| addKeyMap: function(map$$1, bottom) { |
| this.state.keyMaps[bottom ? "push" : "unshift"](getKeyMap(map$$1)); |
| }, |
| removeKeyMap: function(map$$1) { |
| var maps = this.state.keyMaps; |
| for (var i = 0; i < maps.length; ++i) |
| { if (maps[i] == map$$1 || maps[i].name == map$$1) { |
| maps.splice(i, 1); |
| return true |
| } } |
| }, |
| |
| addOverlay: methodOp(function(spec, options) { |
| var mode = spec.token ? spec : CodeMirror.getMode(this.options, spec); |
| if (mode.startState) { throw new Error("Overlays may not be stateful.") } |
| insertSorted(this.state.overlays, |
| {mode: mode, modeSpec: spec, opaque: options && options.opaque, |
| priority: (options && options.priority) || 0}, |
| function (overlay) { return overlay.priority; }); |
| this.state.modeGen++; |
| regChange(this); |
| }), |
| removeOverlay: methodOp(function(spec) { |
| var overlays = this.state.overlays; |
| for (var i = 0; i < overlays.length; ++i) { |
| var cur = overlays[i].modeSpec; |
| if (cur == spec || typeof spec == "string" && cur.name == spec) { |
| overlays.splice(i, 1); |
| this.state.modeGen++; |
| regChange(this); |
| return |
| } |
| } |
| }), |
| |
| indentLine: methodOp(function(n, dir, aggressive) { |
| if (typeof dir != "string" && typeof dir != "number") { |
| if (dir == null) { dir = this.options.smartIndent ? "smart" : "prev"; } |
| else { dir = dir ? "add" : "subtract"; } |
| } |
| if (isLine(this.doc, n)) { indentLine(this, n, dir, aggressive); } |
| }), |
| indentSelection: methodOp(function(how) { |
| var ranges = this.doc.sel.ranges, end = -1; |
| for (var i = 0; i < ranges.length; i++) { |
| var range$$1 = ranges[i]; |
| if (!range$$1.empty()) { |
| var from = range$$1.from(), to = range$$1.to(); |
| var start = Math.max(end, from.line); |
| end = Math.min(this.lastLine(), to.line - (to.ch ? 0 : 1)) + 1; |
| for (var j = start; j < end; ++j) |
| { indentLine(this, j, how); } |
| var newRanges = this.doc.sel.ranges; |
| if (from.ch == 0 && ranges.length == newRanges.length && newRanges[i].from().ch > 0) |
| { replaceOneSelection(this.doc, i, new Range(from, newRanges[i].to()), sel_dontScroll); } |
| } else if (range$$1.head.line > end) { |
| indentLine(this, range$$1.head.line, how, true); |
| end = range$$1.head.line; |
| if (i == this.doc.sel.primIndex) { ensureCursorVisible(this); } |
| } |
| } |
| }), |
| |
| // Fetch the parser token for a given character. Useful for hacks |
| // that want to inspect the mode state (say, for completion). |
| getTokenAt: function(pos, precise) { |
| return takeToken(this, pos, precise) |
| }, |
| |
| getLineTokens: function(line, precise) { |
| return takeToken(this, Pos(line), precise, true) |
| }, |
| |
| getTokenTypeAt: function(pos) { |
| pos = clipPos(this.doc, pos); |
| var styles = getLineStyles(this, getLine(this.doc, pos.line)); |
| var before = 0, after = (styles.length - 1) / 2, ch = pos.ch; |
| var type; |
| if (ch == 0) { type = styles[2]; } |
| else { for (;;) { |
| var mid = (before + after) >> 1; |
| if ((mid ? styles[mid * 2 - 1] : 0) >= ch) { after = mid; } |
| else if (styles[mid * 2 + 1] < ch) { before = mid + 1; } |
| else { type = styles[mid * 2 + 2]; break } |
| } } |
| var cut = type ? type.indexOf("overlay ") : -1; |
| return cut < 0 ? type : cut == 0 ? null : type.slice(0, cut - 1) |
| }, |
| |
| getModeAt: function(pos) { |
| var mode = this.doc.mode; |
| if (!mode.innerMode) { return mode } |
| return CodeMirror.innerMode(mode, this.getTokenAt(pos).state).mode |
| }, |
| |
| getHelper: function(pos, type) { |
| return this.getHelpers(pos, type)[0] |
| }, |
| |
| getHelpers: function(pos, type) { |
| var found = []; |
| if (!helpers.hasOwnProperty(type)) { return found } |
| var help = helpers[type], mode = this.getModeAt(pos); |
| if (typeof mode[type] == "string") { |
| if (help[mode[type]]) { found.push(help[mode[type]]); } |
| } else if (mode[type]) { |
| for (var i = 0; i < mode[type].length; i++) { |
| var val = help[mode[type][i]]; |
| if (val) { found.push(val); } |
| } |
| } else if (mode.helperType && help[mode.helperType]) { |
| found.push(help[mode.helperType]); |
| } else if (help[mode.name]) { |
| found.push(help[mode.name]); |
| } |
| for (var i$1 = 0; i$1 < help._global.length; i$1++) { |
| var cur = help._global[i$1]; |
| if (cur.pred(mode, this) && indexOf(found, cur.val) == -1) |
| { found.push(cur.val); } |
| } |
| return found |
| }, |
| |
| getStateAfter: function(line, precise) { |
| var doc = this.doc; |
| line = clipLine(doc, line == null ? doc.first + doc.size - 1: line); |
| return getContextBefore(this, line + 1, precise).state |
| }, |
| |
| cursorCoords: function(start, mode) { |
| var pos, range$$1 = this.doc.sel.primary(); |
| if (start == null) { pos = range$$1.head; } |
| else if (typeof start == "object") { pos = clipPos(this.doc, start); } |
| else { pos = start ? range$$1.from() : range$$1.to(); } |
| return cursorCoords(this, pos, mode || "page") |
| }, |
| |
| charCoords: function(pos, mode) { |
| return charCoords(this, clipPos(this.doc, pos), mode || "page") |
| }, |
| |
| coordsChar: function(coords, mode) { |
| coords = fromCoordSystem(this, coords, mode || "page"); |
| return coordsChar(this, coords.left, coords.top) |
| }, |
| |
| lineAtHeight: function(height, mode) { |
| height = fromCoordSystem(this, {top: height, left: 0}, mode || "page").top; |
| return lineAtHeight(this.doc, height + this.display.viewOffset) |
| }, |
| heightAtLine: function(line, mode, includeWidgets) { |
| var end = false, lineObj; |
| if (typeof line == "number") { |
| var last = this.doc.first + this.doc.size - 1; |
| if (line < this.doc.first) { line = this.doc.first; } |
| else if (line > last) { line = last; end = true; } |
| lineObj = getLine(this.doc, line); |
| } else { |
| lineObj = line; |
| } |
| return intoCoordSystem(this, lineObj, {top: 0, left: 0}, mode || "page", includeWidgets || end).top + |
| (end ? this.doc.height - heightAtLine(lineObj) : 0) |
| }, |
| |
| defaultTextHeight: function() { return textHeight(this.display) }, |
| defaultCharWidth: function() { return charWidth(this.display) }, |
| |
| getViewport: function() { return {from: this.display.viewFrom, to: this.display.viewTo}}, |
| |
| addWidget: function(pos, node, scroll, vert, horiz) { |
| var display = this.display; |
| pos = cursorCoords(this, clipPos(this.doc, pos)); |
| var top = pos.bottom, left = pos.left; |
| node.style.position = "absolute"; |
| node.setAttribute("cm-ignore-events", "true"); |
| this.display.input.setUneditable(node); |
| display.sizer.appendChild(node); |
| if (vert == "over") { |
| top = pos.top; |
| } else if (vert == "above" || vert == "near") { |
| var vspace = Math.max(display.wrapper.clientHeight, this.doc.height), |
| hspace = Math.max(display.sizer.clientWidth, display.lineSpace.clientWidth); |
| // Default to positioning above (if specified and possible); otherwise default to positioning below |
| if ((vert == 'above' || pos.bottom + node.offsetHeight > vspace) && pos.top > node.offsetHeight) |
| { top = pos.top - node.offsetHeight; } |
| else if (pos.bottom + node.offsetHeight <= vspace) |
| { top = pos.bottom; } |
| if (left + node.offsetWidth > hspace) |
| { left = hspace - node.offsetWidth; } |
| } |
| node.style.top = top + "px"; |
| node.style.left = node.style.right = ""; |
| if (horiz == "right") { |
| left = display.sizer.clientWidth - node.offsetWidth; |
| node.style.right = "0px"; |
| } else { |
| if (horiz == "left") { left = 0; } |
| else if (horiz == "middle") { left = (display.sizer.clientWidth - node.offsetWidth) / 2; } |
| node.style.left = left + "px"; |
| } |
| if (scroll) |
| { scrollIntoView(this, {left: left, top: top, right: left + node.offsetWidth, bottom: top + node.offsetHeight}); } |
| }, |
| |
| triggerOnKeyDown: methodOp(onKeyDown), |
| triggerOnKeyPress: methodOp(onKeyPress), |
| triggerOnKeyUp: onKeyUp, |
| triggerOnMouseDown: methodOp(onMouseDown), |
| |
| execCommand: function(cmd) { |
| if (commands.hasOwnProperty(cmd)) |
| { return commands[cmd].call(null, this) } |
| }, |
| |
| triggerElectric: methodOp(function(text) { triggerElectric(this, text); }), |
| |
| findPosH: function(from, amount, unit, visually) { |
| var dir = 1; |
| if (amount < 0) { dir = -1; amount = -amount; } |
| var cur = clipPos(this.doc, from); |
| for (var i = 0; i < amount; ++i) { |
| cur = findPosH(this.doc, cur, dir, unit, visually); |
| if (cur.hitSide) { break } |
| } |
| return cur |
| }, |
| |
| moveH: methodOp(function(dir, unit) { |
| var this$1 = this; |
| |
| this.extendSelectionsBy(function (range$$1) { |
| if (this$1.display.shift || this$1.doc.extend || range$$1.empty()) |
| { return findPosH(this$1.doc, range$$1.head, dir, unit, this$1.options.rtlMoveVisually) } |
| else |
| { return dir < 0 ? range$$1.from() : range$$1.to() } |
| }, sel_move); |
| }), |
| |
| deleteH: methodOp(function(dir, unit) { |
| var sel = this.doc.sel, doc = this.doc; |
| if (sel.somethingSelected()) |
| { doc.replaceSelection("", null, "+delete"); } |
| else |
| { deleteNearSelection(this, function (range$$1) { |
| var other = findPosH(doc, range$$1.head, dir, unit, false); |
| return dir < 0 ? {from: other, to: range$$1.head} : {from: range$$1.head, to: other} |
| }); } |
| }), |
| |
| findPosV: function(from, amount, unit, goalColumn) { |
| var dir = 1, x = goalColumn; |
| if (amount < 0) { dir = -1; amount = -amount; } |
| var cur = clipPos(this.doc, from); |
| for (var i = 0; i < amount; ++i) { |
| var coords = cursorCoords(this, cur, "div"); |
| if (x == null) { x = coords.left; } |
| else { coords.left = x; } |
| cur = findPosV(this, coords, dir, unit); |
| if (cur.hitSide) { break } |
| } |
| return cur |
| }, |
| |
| moveV: methodOp(function(dir, unit) { |
| var this$1 = this; |
| |
| var doc = this.doc, goals = []; |
| var collapse = !this.display.shift && !doc.extend && doc.sel.somethingSelected(); |
| doc.extendSelectionsBy(function (range$$1) { |
| if (collapse) |
| { return dir < 0 ? range$$1.from() : range$$1.to() } |
| var headPos = cursorCoords(this$1, range$$1.head, "div"); |
| if (range$$1.goalColumn != null) { headPos.left = range$$1.goalColumn; } |
| goals.push(headPos.left); |
| var pos = findPosV(this$1, headPos, dir, unit); |
| if (unit == "page" && range$$1 == doc.sel.primary()) |
| { addToScrollTop(this$1, charCoords(this$1, pos, "div").top - headPos.top); } |
| return pos |
| }, sel_move); |
| if (goals.length) { for (var i = 0; i < doc.sel.ranges.length; i++) |
| { doc.sel.ranges[i].goalColumn = goals[i]; } } |
| }), |
| |
| // Find the word at the given position (as returned by coordsChar). |
| findWordAt: function(pos) { |
| var doc = this.doc, line = getLine(doc, pos.line).text; |
| var start = pos.ch, end = pos.ch; |
| if (line) { |
| var helper = this.getHelper(pos, "wordChars"); |
| if ((pos.sticky == "before" || end == line.length) && start) { --start; } else { ++end; } |
| var startChar = line.charAt(start); |
| var check = isWordChar(startChar, helper) |
| ? function (ch) { return isWordChar(ch, helper); } |
| : /\s/.test(startChar) ? function (ch) { return /\s/.test(ch); } |
| : function (ch) { return (!/\s/.test(ch) && !isWordChar(ch)); }; |
| while (start > 0 && check(line.charAt(start - 1))) { --start; } |
| while (end < line.length && check(line.charAt(end))) { ++end; } |
| } |
| return new Range(Pos(pos.line, start), Pos(pos.line, end)) |
| }, |
| |
| toggleOverwrite: function(value) { |
| if (value != null && value == this.state.overwrite) { return } |
| if (this.state.overwrite = !this.state.overwrite) |
| { addClass(this.display.cursorDiv, "CodeMirror-overwrite"); } |
| else |
| { rmClass(this.display.cursorDiv, "CodeMirror-overwrite"); } |
| |
| signal(this, "overwriteToggle", this, this.state.overwrite); |
| }, |
| hasFocus: function() { return this.display.input.getField() == activeElt() }, |
| isReadOnly: function() { return !!(this.options.readOnly || this.doc.cantEdit) }, |
| |
| scrollTo: methodOp(function (x, y) { scrollToCoords(this, x, y); }), |
| getScrollInfo: function() { |
| var scroller = this.display.scroller; |
| return {left: scroller.scrollLeft, top: scroller.scrollTop, |
| height: scroller.scrollHeight - scrollGap(this) - this.display.barHeight, |
| width: scroller.scrollWidth - scrollGap(this) - this.display.barWidth, |
| clientHeight: displayHeight(this), clientWidth: displayWidth(this)} |
| }, |
| |
| scrollIntoView: methodOp(function(range$$1, margin) { |
| if (range$$1 == null) { |
| range$$1 = {from: this.doc.sel.primary().head, to: null}; |
| if (margin == null) { margin = this.options.cursorScrollMargin; } |
| } else if (typeof range$$1 == "number") { |
| range$$1 = {from: Pos(range$$1, 0), to: null}; |
| } else if (range$$1.from == null) { |
| range$$1 = {from: range$$1, to: null}; |
| } |
| if (!range$$1.to) { range$$1.to = range$$1.from; } |
| range$$1.margin = margin || 0; |
| |
| if (range$$1.from.line != null) { |
| scrollToRange(this, range$$1); |
| } else { |
| scrollToCoordsRange(this, range$$1.from, range$$1.to, range$$1.margin); |
| } |
| }), |
| |
| setSize: methodOp(function(width, height) { |
| var this$1 = this; |
| |
| var interpret = function (val) { return typeof val == "number" || /^\d+$/.test(String(val)) ? val + "px" : val; }; |
| if (width != null) { this.display.wrapper.style.width = interpret(width); } |
| if (height != null) { this.display.wrapper.style.height = interpret(height); } |
| if (this.options.lineWrapping) { clearLineMeasurementCache(this); } |
| var lineNo$$1 = this.display.viewFrom; |
| this.doc.iter(lineNo$$1, this.display.viewTo, function (line) { |
| if (line.widgets) { for (var i = 0; i < line.widgets.length; i++) |
| { if (line.widgets[i].noHScroll) { regLineChange(this$1, lineNo$$1, "widget"); break } } } |
| ++lineNo$$1; |
| }); |
| this.curOp.forceUpdate = true; |
| signal(this, "refresh", this); |
| }), |
| |
| operation: function(f){return runInOp(this, f)}, |
| startOperation: function(){return startOperation(this)}, |
| endOperation: function(){return endOperation(this)}, |
| |
| refresh: methodOp(function() { |
| var oldHeight = this.display.cachedTextHeight; |
| regChange(this); |
| this.curOp.forceUpdate = true; |
| clearCaches(this); |
| scrollToCoords(this, this.doc.scrollLeft, this.doc.scrollTop); |
| updateGutterSpace(this.display); |
| if (oldHeight == null || Math.abs(oldHeight - textHeight(this.display)) > .5) |
| { estimateLineHeights(this); } |
| signal(this, "refresh", this); |
| }), |
| |
| swapDoc: methodOp(function(doc) { |
| var old = this.doc; |
| old.cm = null; |
| // Cancel the current text selection if any (#5821) |
| if (this.state.selectingText) { this.state.selectingText(); } |
| attachDoc(this, doc); |
| clearCaches(this); |
| this.display.input.reset(); |
| scrollToCoords(this, doc.scrollLeft, doc.scrollTop); |
| this.curOp.forceScroll = true; |
| signalLater(this, "swapDoc", this, old); |
| return old |
| }), |
| |
| phrase: function(phraseText) { |
| var phrases = this.options.phrases; |
| return phrases && Object.prototype.hasOwnProperty.call(phrases, phraseText) ? phrases[phraseText] : phraseText |
| }, |
| |
| getInputField: function(){return this.display.input.getField()}, |
| getWrapperElement: function(){return this.display.wrapper}, |
| getScrollerElement: function(){return this.display.scroller}, |
| getGutterElement: function(){return this.display.gutters} |
| }; |
| eventMixin(CodeMirror); |
| |
| CodeMirror.registerHelper = function(type, name, value) { |
| if (!helpers.hasOwnProperty(type)) { helpers[type] = CodeMirror[type] = {_global: []}; } |
| helpers[type][name] = value; |
| }; |
| CodeMirror.registerGlobalHelper = function(type, name, predicate, value) { |
| CodeMirror.registerHelper(type, name, value); |
| helpers[type]._global.push({pred: predicate, val: value}); |
| }; |
| } |
| |
| // Used for horizontal relative motion. Dir is -1 or 1 (left or |
| // right), unit can be "char", "column" (like char, but doesn't |
| // cross line boundaries), "word" (across next word), or "group" (to |
| // the start of next group of word or non-word-non-whitespace |
| // chars). The visually param controls whether, in right-to-left |
| // text, direction 1 means to move towards the next index in the |
| // string, or towards the character to the right of the current |
| // position. The resulting position will have a hitSide=true |
| // property if it reached the end of the document. |
| function findPosH(doc, pos, dir, unit, visually) { |
| var oldPos = pos; |
| var origDir = dir; |
| var lineObj = getLine(doc, pos.line); |
| function findNextLine() { |
| var l = pos.line + dir; |
| if (l < doc.first || l >= doc.first + doc.size) { return false } |
| pos = new Pos(l, pos.ch, pos.sticky); |
| return lineObj = getLine(doc, l) |
| } |
| function moveOnce(boundToLine) { |
| var next; |
| if (visually) { |
| next = moveVisually(doc.cm, lineObj, pos, dir); |
| } else { |
| next = moveLogically(lineObj, pos, dir); |
| } |
| if (next == null) { |
| if (!boundToLine && findNextLine()) |
| { pos = endOfLine(visually, doc.cm, lineObj, pos.line, dir); } |
| else |
| { return false } |
| } else { |
| pos = next; |
| } |
| return true |
| } |
| |
| if (unit == "char") { |
| moveOnce(); |
| } else if (unit == "column") { |
| moveOnce(true); |
| } else if (unit == "word" || unit == "group") { |
| var sawType = null, group = unit == "group"; |
| var helper = doc.cm && doc.cm.getHelper(pos, "wordChars"); |
| for (var first = true;; first = false) { |
| if (dir < 0 && !moveOnce(!first)) { break } |
| var cur = lineObj.text.charAt(pos.ch) || "\n"; |
| var type = isWordChar(cur, helper) ? "w" |
| : group && cur == "\n" ? "n" |
| : !group || /\s/.test(cur) ? null |
| : "p"; |
| if (group && !first && !type) { type = "s"; } |
| if (sawType && sawType != type) { |
| if (dir < 0) {dir = 1; moveOnce(); pos.sticky = "after";} |
| break |
| } |
| |
| if (type) { sawType = type; } |
| if (dir > 0 && !moveOnce(!first)) { break } |
| } |
| } |
| var result = skipAtomic(doc, pos, oldPos, origDir, true); |
| if (equalCursorPos(oldPos, result)) { result.hitSide = true; } |
| return result |
| } |
| |
| // For relative vertical movement. Dir may be -1 or 1. Unit can be |
| // "page" or "line". The resulting position will have a hitSide=true |
| // property if it reached the end of the document. |
| function findPosV(cm, pos, dir, unit) { |
| var doc = cm.doc, x = pos.left, y; |
| if (unit == "page") { |
| var pageSize = Math.min(cm.display.wrapper.clientHeight, window.innerHeight || document.documentElement.clientHeight); |
| var moveAmount = Math.max(pageSize - .5 * textHeight(cm.display), 3); |
| y = (dir > 0 ? pos.bottom : pos.top) + dir * moveAmount; |
| |
| } else if (unit == "line") { |
| y = dir > 0 ? pos.bottom + 3 : pos.top - 3; |
| } |
| var target; |
| for (;;) { |
| target = coordsChar(cm, x, y); |
| if (!target.outside) { break } |
| if (dir < 0 ? y <= 0 : y >= doc.height) { target.hitSide = true; break } |
| y += dir * 5; |
| } |
| return target |
| } |
| |
| // CONTENTEDITABLE INPUT STYLE |
| |
| var ContentEditableInput = function(cm) { |
| this.cm = cm; |
| this.lastAnchorNode = this.lastAnchorOffset = this.lastFocusNode = this.lastFocusOffset = null; |
| this.polling = new Delayed(); |
| this.composing = null; |
| this.gracePeriod = false; |
| this.readDOMTimeout = null; |
| }; |
| |
| ContentEditableInput.prototype.init = function (display) { |
| var this$1 = this; |
| |
| var input = this, cm = input.cm; |
| var div = input.div = display.lineDiv; |
| disableBrowserMagic(div, cm.options.spellcheck, cm.options.autocorrect, cm.options.autocapitalize); |
| |
| on(div, "paste", function (e) { |
| if (signalDOMEvent(cm, e) || handlePaste(e, cm)) { return } |
| // IE doesn't fire input events, so we schedule a read for the pasted content in this way |
| if (ie_version <= 11) { setTimeout(operation(cm, function () { return this$1.updateFromDOM(); }), 20); } |
| }); |
| |
| on(div, "compositionstart", function (e) { |
| this$1.composing = {data: e.data, done: false}; |
| }); |
| on(div, "compositionupdate", function (e) { |
| if (!this$1.composing) { this$1.composing = {data: e.data, done: false}; } |
| }); |
| on(div, "compositionend", function (e) { |
| if (this$1.composing) { |
| if (e.data != this$1.composing.data) { this$1.readFromDOMSoon(); } |
| this$1.composing.done = true; |
| } |
| }); |
| |
| on(div, "touchstart", function () { return input.forceCompositionEnd(); }); |
| |
| on(div, "input", function () { |
| if (!this$1.composing) { this$1.readFromDOMSoon(); } |
| }); |
| |
| function onCopyCut(e) { |
| if (signalDOMEvent(cm, e)) { return } |
| if (cm.somethingSelected()) { |
| setLastCopied({lineWise: false, text: cm.getSelections()}); |
| if (e.type == "cut") { cm.replaceSelection("", null, "cut"); } |
| } else if (!cm.options.lineWiseCopyCut) { |
| return |
| } else { |
| var ranges = copyableRanges(cm); |
| setLastCopied({lineWise: true, text: ranges.text}); |
| if (e.type == "cut") { |
| cm.operation(function () { |
| cm.setSelections(ranges.ranges, 0, sel_dontScroll); |
| cm.replaceSelection("", null, "cut"); |
| }); |
| } |
| } |
| if (e.clipboardData) { |
| e.clipboardData.clearData(); |
| var content = lastCopied.text.join("\n"); |
| // iOS exposes the clipboard API, but seems to discard content inserted into it |
| e.clipboardData.setData("Text", content); |
| if (e.clipboardData.getData("Text") == content) { |
| e.preventDefault(); |
| return |
| } |
| } |
| // Old-fashioned briefly-focus-a-textarea hack |
| var kludge = hiddenTextarea(), te = kludge.firstChild; |
| cm.display.lineSpace.insertBefore(kludge, cm.display.lineSpace.firstChild); |
| te.value = lastCopied.text.join("\n"); |
| var hadFocus = document.activeElement; |
| selectInput(te); |
| setTimeout(function () { |
| cm.display.lineSpace.removeChild(kludge); |
| hadFocus.focus(); |
| if (hadFocus == div) { input.showPrimarySelection(); } |
| }, 50); |
| } |
| on(div, "copy", onCopyCut); |
| on(div, "cut", onCopyCut); |
| }; |
| |
| ContentEditableInput.prototype.prepareSelection = function () { |
| var result = prepareSelection(this.cm, false); |
| result.focus = this.cm.state.focused; |
| return result |
| }; |
| |
| ContentEditableInput.prototype.showSelection = function (info, takeFocus) { |
| if (!info || !this.cm.display.view.length) { return } |
| if (info.focus || takeFocus) { this.showPrimarySelection(); } |
| this.showMultipleSelections(info); |
| }; |
| |
| ContentEditableInput.prototype.getSelection = function () { |
| return this.cm.display.wrapper.ownerDocument.getSelection() |
| }; |
| |
| ContentEditableInput.prototype.showPrimarySelection = function () { |
| var sel = this.getSelection(), cm = this.cm, prim = cm.doc.sel.primary(); |
| var from = prim.from(), to = prim.to(); |
| |
| if (cm.display.viewTo == cm.display.viewFrom || from.line >= cm.display.viewTo || to.line < cm.display.viewFrom) { |
| sel.removeAllRanges(); |
| return |
| } |
| |
| var curAnchor = domToPos(cm, sel.anchorNode, sel.anchorOffset); |
| var curFocus = domToPos(cm, sel.focusNode, sel.focusOffset); |
| if (curAnchor && !curAnchor.bad && curFocus && !curFocus.bad && |
| cmp(minPos(curAnchor, curFocus), from) == 0 && |
| cmp(maxPos(curAnchor, curFocus), to) == 0) |
| { return } |
| |
| var view = cm.display.view; |
| var start = (from.line >= cm.display.viewFrom && posToDOM(cm, from)) || |
| {node: view[0].measure.map[2], offset: 0}; |
| var end = to.line < cm.display.viewTo && posToDOM(cm, to); |
| if (!end) { |
| var measure = view[view.length - 1].measure; |
| var map$$1 = measure.maps ? measure.maps[measure.maps.length - 1] : measure.map; |
| end = {node: map$$1[map$$1.length - 1], offset: map$$1[map$$1.length - 2] - map$$1[map$$1.length - 3]}; |
| } |
| |
| if (!start || !end) { |
| sel.removeAllRanges(); |
| return |
| } |
| |
| var old = sel.rangeCount && sel.getRangeAt(0), rng; |
| try { rng = range(start.node, start.offset, end.offset, end.node); } |
| catch(e) {} // Our model of the DOM might be outdated, in which case the range we try to set can be impossible |
| if (rng) { |
| if (!gecko && cm.state.focused) { |
| sel.collapse(start.node, start.offset); |
| if (!rng.collapsed) { |
| sel.removeAllRanges(); |
| sel.addRange(rng); |
| } |
| } else { |
| sel.removeAllRanges(); |
| sel.addRange(rng); |
| } |
| if (old && sel.anchorNode == null) { sel.addRange(old); } |
| else if (gecko) { this.startGracePeriod(); } |
| } |
| this.rememberSelection(); |
| }; |
| |
| ContentEditableInput.prototype.startGracePeriod = function () { |
| var this$1 = this; |
| |
| clearTimeout(this.gracePeriod); |
| this.gracePeriod = setTimeout(function () { |
| this$1.gracePeriod = false; |
| if (this$1.selectionChanged()) |
| { this$1.cm.operation(function () { return this$1.cm.curOp.selectionChanged = true; }); } |
| }, 20); |
| }; |
| |
| ContentEditableInput.prototype.showMultipleSelections = function (info) { |
| removeChildrenAndAdd(this.cm.display.cursorDiv, info.cursors); |
| removeChildrenAndAdd(this.cm.display.selectionDiv, info.selection); |
| }; |
| |
| ContentEditableInput.prototype.rememberSelection = function () { |
| var sel = this.getSelection(); |
| this.lastAnchorNode = sel.anchorNode; this.lastAnchorOffset = sel.anchorOffset; |
| this.lastFocusNode = sel.focusNode; this.lastFocusOffset = sel.focusOffset; |
| }; |
| |
| ContentEditableInput.prototype.selectionInEditor = function () { |
| var sel = this.getSelection(); |
| if (!sel.rangeCount) { return false } |
| var node = sel.getRangeAt(0).commonAncestorContainer; |
| return contains(this.div, node) |
| }; |
| |
| ContentEditableInput.prototype.focus = function () { |
| if (this.cm.options.readOnly != "nocursor") { |
| if (!this.selectionInEditor()) |
| { this.showSelection(this.prepareSelection(), true); } |
| this.div.focus(); |
| } |
| }; |
| ContentEditableInput.prototype.blur = function () { this.div.blur(); }; |
| ContentEditableInput.prototype.getField = function () { return this.div }; |
| |
| ContentEditableInput.prototype.supportsTouch = function () { return true }; |
| |
| ContentEditableInput.prototype.receivedFocus = function () { |
| var input = this; |
| if (this.selectionInEditor()) |
| { this.pollSelection(); } |
| else |
| { runInOp(this.cm, function () { return input.cm.curOp.selectionChanged = true; }); } |
| |
| function poll() { |
| if (input.cm.state.focused) { |
| input.pollSelection(); |
| input.polling.set(input.cm.options.pollInterval, poll); |
| } |
| } |
| this.polling.set(this.cm.options.pollInterval, poll); |
| }; |
| |
| ContentEditableInput.prototype.selectionChanged = function () { |
| var sel = this.getSelection(); |
| return sel.anchorNode != this.lastAnchorNode || sel.anchorOffset != this.lastAnchorOffset || |
| sel.focusNode != this.lastFocusNode || sel.focusOffset != this.lastFocusOffset |
| }; |
| |
| ContentEditableInput.prototype.pollSelection = function () { |
| if (this.readDOMTimeout != null || this.gracePeriod || !this.selectionChanged()) { return } |
| var sel = this.getSelection(), cm = this.cm; |
| // On Android Chrome (version 56, at least), backspacing into an |
| // uneditable block element will put the cursor in that element, |
| // and then, because it's not editable, hide the virtual keyboard. |
| // Because Android doesn't allow us to actually detect backspace |
| // presses in a sane way, this code checks for when that happens |
| // and simulates a backspace press in this case. |
| if (android && chrome && this.cm.display.gutterSpecs.length && isInGutter(sel.anchorNode)) { |
| this.cm.triggerOnKeyDown({type: "keydown", keyCode: 8, preventDefault: Math.abs}); |
| this.blur(); |
| this.focus(); |
| return |
| } |
| if (this.composing) { return } |
| this.rememberSelection(); |
| var anchor = domToPos(cm, sel.anchorNode, sel.anchorOffset); |
| var head = domToPos(cm, sel.focusNode, sel.focusOffset); |
| if (anchor && head) { runInOp(cm, function () { |
| setSelection(cm.doc, simpleSelection(anchor, head), sel_dontScroll); |
| if (anchor.bad || head.bad) { cm.curOp.selectionChanged = true; } |
| }); } |
| }; |
| |
| ContentEditableInput.prototype.pollContent = function () { |
| if (this.readDOMTimeout != null) { |
| clearTimeout(this.readDOMTimeout); |
| this.readDOMTimeout = null; |
| } |
| |
| var cm = this.cm, display = cm.display, sel = cm.doc.sel.primary(); |
| var from = sel.from(), to = sel.to(); |
| if (from.ch == 0 && from.line > cm.firstLine()) |
| { from = Pos(from.line - 1, getLine(cm.doc, from.line - 1).length); } |
| if (to.ch == getLine(cm.doc, to.line).text.length && to.line < cm.lastLine()) |
| { to = Pos(to.line + 1, 0); } |
| if (from.line < display.viewFrom || to.line > display.viewTo - 1) { return false } |
| |
| var fromIndex, fromLine, fromNode; |
| if (from.line == display.viewFrom || (fromIndex = findViewIndex(cm, from.line)) == 0) { |
| fromLine = lineNo(display.view[0].line); |
| fromNode = display.view[0].node; |
| } else { |
| fromLine = lineNo(display.view[fromIndex].line); |
| fromNode = display.view[fromIndex - 1].node.nextSibling; |
| } |
| var toIndex = findViewIndex(cm, to.line); |
| var toLine, toNode; |
| if (toIndex == display.view.length - 1) { |
| toLine = display.viewTo - 1; |
| toNode = display.lineDiv.lastChild; |
| } else { |
| toLine = lineNo(display.view[toIndex + 1].line) - 1; |
| toNode = display.view[toIndex + 1].node.previousSibling; |
| } |
| |
| if (!fromNode) { return false } |
| var newText = cm.doc.splitLines(domTextBetween(cm, fromNode, toNode, fromLine, toLine)); |
| var oldText = getBetween(cm.doc, Pos(fromLine, 0), Pos(toLine, getLine(cm.doc, toLine).text.length)); |
| while (newText.length > 1 && oldText.length > 1) { |
| if (lst(newText) == lst(oldText)) { newText.pop(); oldText.pop(); toLine--; } |
| else if (newText[0] == oldText[0]) { newText.shift(); oldText.shift(); fromLine++; } |
| else { break } |
| } |
| |
| var cutFront = 0, cutEnd = 0; |
| var newTop = newText[0], oldTop = oldText[0], maxCutFront = Math.min(newTop.length, oldTop.length); |
| while (cutFront < maxCutFront && newTop.charCodeAt(cutFront) == oldTop.charCodeAt(cutFront)) |
| { ++cutFront; } |
| var newBot = lst(newText), oldBot = lst(oldText); |
| var maxCutEnd = Math.min(newBot.length - (newText.length == 1 ? cutFront : 0), |
| oldBot.length - (oldText.length == 1 ? cutFront : 0)); |
| while (cutEnd < maxCutEnd && |
| newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1)) |
| { ++cutEnd; } |
| // Try to move start of change to start of selection if ambiguous |
| if (newText.length == 1 && oldText.length == 1 && fromLine == from.line) { |
| while (cutFront && cutFront > from.ch && |
| newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1)) { |
| cutFront--; |
| cutEnd++; |
| } |
| } |
| |
| newText[newText.length - 1] = newBot.slice(0, newBot.length - cutEnd).replace(/^\u200b+/, ""); |
| newText[0] = newText[0].slice(cutFront).replace(/\u200b+$/, ""); |
| |
| var chFrom = Pos(fromLine, cutFront); |
| var chTo = Pos(toLine, oldText.length ? lst(oldText).length - cutEnd : 0); |
| if (newText.length > 1 || newText[0] || cmp(chFrom, chTo)) { |
| replaceRange(cm.doc, newText, chFrom, chTo, "+input"); |
| return true |
| } |
| }; |
| |
| ContentEditableInput.prototype.ensurePolled = function () { |
| this.forceCompositionEnd(); |
| }; |
| ContentEditableInput.prototype.reset = function () { |
| this.forceCompositionEnd(); |
| }; |
| ContentEditableInput.prototype.forceCompositionEnd = function () { |
| if (!this.composing) { return } |
| clearTimeout(this.readDOMTimeout); |
| this.composing = null; |
| this.updateFromDOM(); |
| this.div.blur(); |
| this.div.focus(); |
| }; |
| ContentEditableInput.prototype.readFromDOMSoon = function () { |
| var this$1 = this; |
| |
| if (this.readDOMTimeout != null) { return } |
| this.readDOMTimeout = setTimeout(function () { |
| this$1.readDOMTimeout = null; |
| if (this$1.composing) { |
| if (this$1.composing.done) { this$1.composing = null; } |
| else { return } |
| } |
| this$1.updateFromDOM(); |
| }, 80); |
| }; |
| |
| ContentEditableInput.prototype.updateFromDOM = function () { |
| var this$1 = this; |
| |
| if (this.cm.isReadOnly() || !this.pollContent()) |
| { runInOp(this.cm, function () { return regChange(this$1.cm); }); } |
| }; |
| |
| ContentEditableInput.prototype.setUneditable = function (node) { |
| node.contentEditable = "false"; |
| }; |
| |
| ContentEditableInput.prototype.onKeyPress = function (e) { |
| if (e.charCode == 0 || this.composing) { return } |
| e.preventDefault(); |
| if (!this.cm.isReadOnly()) |
| { operation(this.cm, applyTextInput)(this.cm, String.fromCharCode(e.charCode == null ? e.keyCode : e.charCode), 0); } |
| }; |
| |
| ContentEditableInput.prototype.readOnlyChanged = function (val) { |
| this.div.contentEditable = String(val != "nocursor"); |
| }; |
| |
| ContentEditableInput.prototype.onContextMenu = function () {}; |
| ContentEditableInput.prototype.resetPosition = function () {}; |
| |
| ContentEditableInput.prototype.needsContentAttribute = true; |
| |
| function posToDOM(cm, pos) { |
| var view = findViewForLine(cm, pos.line); |
| if (!view || view.hidden) { return null } |
| var line = getLine(cm.doc, pos.line); |
| var info = mapFromLineView(view, line, pos.line); |
| |
| var order = getOrder(line, cm.doc.direction), side = "left"; |
| if (order) { |
| var partPos = getBidiPartAt(order, pos.ch); |
| side = partPos % 2 ? "right" : "left"; |
| } |
| var result = nodeAndOffsetInLineMap(info.map, pos.ch, side); |
| result.offset = result.collapse == "right" ? result.end : result.start; |
| return result |
| } |
| |
| function isInGutter(node) { |
| for (var scan = node; scan; scan = scan.parentNode) |
| { if (/CodeMirror-gutter-wrapper/.test(scan.className)) { return true } } |
| return false |
| } |
| |
| function badPos(pos, bad) { if (bad) { pos.bad = true; } return pos } |
| |
| function domTextBetween(cm, from, to, fromLine, toLine) { |
| var text = "", closing = false, lineSep = cm.doc.lineSeparator(), extraLinebreak = false; |
| function recognizeMarker(id) { return function (marker) { return marker.id == id; } } |
| function close() { |
| if (closing) { |
| text += lineSep; |
| if (extraLinebreak) { text += lineSep; } |
| closing = extraLinebreak = false; |
| } |
| } |
| function addText(str) { |
| if (str) { |
| close(); |
| text += str; |
| } |
| } |
| function walk(node) { |
| if (node.nodeType == 1) { |
| var cmText = node.getAttribute("cm-text"); |
| if (cmText) { |
| addText(cmText); |
| return |
| } |
| var markerID = node.getAttribute("cm-marker"), range$$1; |
| if (markerID) { |
| var found = cm.findMarks(Pos(fromLine, 0), Pos(toLine + 1, 0), recognizeMarker(+markerID)); |
| if (found.length && (range$$1 = found[0].find(0))) |
| { addText(getBetween(cm.doc, range$$1.from, range$$1.to).join(lineSep)); } |
| return |
| } |
| if (node.getAttribute("contenteditable") == "false") { return } |
| var isBlock = /^(pre|div|p|li|table|br)$/i.test(node.nodeName); |
| if (!/^br$/i.test(node.nodeName) && node.textContent.length == 0) { return } |
| |
| if (isBlock) { close(); } |
| for (var i = 0; i < node.childNodes.length; i++) |
| { walk(node.childNodes[i]); } |
| |
| if (/^(pre|p)$/i.test(node.nodeName)) { extraLinebreak = true; } |
| if (isBlock) { closing = true; } |
| } else if (node.nodeType == 3) { |
| addText(node.nodeValue.replace(/\u200b/g, "").replace(/\u00a0/g, " ")); |
| } |
| } |
| for (;;) { |
| walk(from); |
| if (from == to) { break } |
| from = from.nextSibling; |
| extraLinebreak = false; |
| } |
| return text |
| } |
| |
| function domToPos(cm, node, offset) { |
| var lineNode; |
| if (node == cm.display.lineDiv) { |
| lineNode = cm.display.lineDiv.childNodes[offset]; |
| if (!lineNode) { return badPos(cm.clipPos(Pos(cm.display.viewTo - 1)), true) } |
| node = null; offset = 0; |
| } else { |
| for (lineNode = node;; lineNode = lineNode.parentNode) { |
| if (!lineNode || lineNode == cm.display.lineDiv) { return null } |
| if (lineNode.parentNode && lineNode.parentNode == cm.display.lineDiv) { break } |
| } |
| } |
| for (var i = 0; i < cm.display.view.length; i++) { |
| var lineView = cm.display.view[i]; |
| if (lineView.node == lineNode) |
| { return locateNodeInLineView(lineView, node, offset) } |
| } |
| } |
| |
| function locateNodeInLineView(lineView, node, offset) { |
| var wrapper = lineView.text.firstChild, bad = false; |
| if (!node || !contains(wrapper, node)) { return badPos(Pos(lineNo(lineView.line), 0), true) } |
| if (node == wrapper) { |
| bad = true; |
| node = wrapper.childNodes[offset]; |
| offset = 0; |
| if (!node) { |
| var line = lineView.rest ? lst(lineView.rest) : lineView.line; |
| return badPos(Pos(lineNo(line), line.text.length), bad) |
| } |
| } |
| |
| var textNode = node.nodeType == 3 ? node : null, topNode = node; |
| if (!textNode && node.childNodes.length == 1 && node.firstChild.nodeType == 3) { |
| textNode = node.firstChild; |
| if (offset) { offset = textNode.nodeValue.length; } |
| } |
| while (topNode.parentNode != wrapper) { topNode = topNode.parentNode; } |
| var measure = lineView.measure, maps = measure.maps; |
| |
| function find(textNode, topNode, offset) { |
| for (var i = -1; i < (maps ? maps.length : 0); i++) { |
| var map$$1 = i < 0 ? measure.map : maps[i]; |
| for (var j = 0; j < map$$1.length; j += 3) { |
| var curNode = map$$1[j + 2]; |
| if (curNode == textNode || curNode == topNode) { |
| var line = lineNo(i < 0 ? lineView.line : lineView.rest[i]); |
| var ch = map$$1[j] + offset; |
| if (offset < 0 || curNode != textNode) { ch = map$$1[j + (offset ? 1 : 0)]; } |
| return Pos(line, ch) |
| } |
| } |
| } |
| } |
| var found = find(textNode, topNode, offset); |
| if (found) { return badPos(found, bad) } |
| |
| // FIXME this is all really shaky. might handle the few cases it needs to handle, but likely to cause problems |
| for (var after = topNode.nextSibling, dist = textNode ? textNode.nodeValue.length - offset : 0; after; after = after.nextSibling) { |
| found = find(after, after.firstChild, 0); |
| if (found) |
| { return badPos(Pos(found.line, found.ch - dist), bad) } |
| else |
| { dist += after.textContent.length; } |
| } |
| for (var before = topNode.previousSibling, dist$1 = offset; before; before = before.previousSibling) { |
| found = find(before, before.firstChild, -1); |
| if (found) |
| { return badPos(Pos(found.line, found.ch + dist$1), bad) } |
| else |
| { dist$1 += before.textContent.length; } |
| } |
| } |
| |
| // TEXTAREA INPUT STYLE |
| |
| var TextareaInput = function(cm) { |
| this.cm = cm; |
| // See input.poll and input.reset |
| this.prevInput = ""; |
| |
| // Flag that indicates whether we expect input to appear real soon |
| // now (after some event like 'keypress' or 'input') and are |
| // polling intensively. |
| this.pollingFast = false; |
| // Self-resetting timeout for the poller |
| this.polling = new Delayed(); |
| // Used to work around IE issue with selection being forgotten when focus moves away from textarea |
| this.hasSelection = false; |
| this.composing = null; |
| }; |
| |
| TextareaInput.prototype.init = function (display) { |
| var this$1 = this; |
| |
| var input = this, cm = this.cm; |
| this.createField(display); |
| var te = this.textarea; |
| |
| display.wrapper.insertBefore(this.wrapper, display.wrapper.firstChild); |
| |
| // Needed to hide big blue blinking cursor on Mobile Safari (doesn't seem to work in iOS 8 anymore) |
| if (ios) { te.style.width = "0px"; } |
| |
| on(te, "input", function () { |
| if (ie && ie_version >= 9 && this$1.hasSelection) { this$1.hasSelection = null; } |
| input.poll(); |
| }); |
| |
| on(te, "paste", function (e) { |
| if (signalDOMEvent(cm, e) || handlePaste(e, cm)) { return } |
| |
| cm.state.pasteIncoming = +new Date; |
| input.fastPoll(); |
| }); |
| |
| function prepareCopyCut(e) { |
| if (signalDOMEvent(cm, e)) { return } |
| if (cm.somethingSelected()) { |
| setLastCopied({lineWise: false, text: cm.getSelections()}); |
| } else if (!cm.options.lineWiseCopyCut) { |
| return |
| } else { |
| var ranges = copyableRanges(cm); |
| setLastCopied({lineWise: true, text: ranges.text}); |
| if (e.type == "cut") { |
| cm.setSelections(ranges.ranges, null, sel_dontScroll); |
| } else { |
| input.prevInput = ""; |
| te.value = ranges.text.join("\n"); |
| selectInput(te); |
| } |
| } |
| if (e.type == "cut") { cm.state.cutIncoming = +new Date; } |
| } |
| on(te, "cut", prepareCopyCut); |
| on(te, "copy", prepareCopyCut); |
| |
| on(display.scroller, "paste", function (e) { |
| if (eventInWidget(display, e) || signalDOMEvent(cm, e)) { return } |
| if (!te.dispatchEvent) { |
| cm.state.pasteIncoming = +new Date; |
| input.focus(); |
| return |
| } |
| |
| // Pass the `paste` event to the textarea so it's handled by its event listener. |
| var event = new Event("paste"); |
| event.clipboardData = e.clipboardData; |
| te.dispatchEvent(event); |
| }); |
| |
| // Prevent normal selection in the editor (we handle our own) |
| on(display.lineSpace, "selectstart", function (e) { |
| if (!eventInWidget(display, e)) { e_preventDefault(e); } |
| }); |
| |
| on(te, "compositionstart", function () { |
| var start = cm.getCursor("from"); |
| if (input.composing) { input.composing.range.clear(); } |
| input.composing = { |
| start: start, |
| range: cm.markText(start, cm.getCursor("to"), {className: "CodeMirror-composing"}) |
| }; |
| }); |
| on(te, "compositionend", function () { |
| if (input.composing) { |
| input.poll(); |
| input.composing.range.clear(); |
| input.composing = null; |
| } |
| }); |
| }; |
| |
| TextareaInput.prototype.createField = function (_display) { |
| // Wraps and hides input textarea |
| this.wrapper = hiddenTextarea(); |
| // The semihidden textarea that is focused when the editor is |
| // focused, and receives input. |
| this.textarea = this.wrapper.firstChild; |
| }; |
| |
| TextareaInput.prototype.prepareSelection = function () { |
| // Redraw the selection and/or cursor |
| var cm = this.cm, display = cm.display, doc = cm.doc; |
| var result = prepareSelection(cm); |
| |
| // Move the hidden textarea near the cursor to prevent scrolling artifacts |
| if (cm.options.moveInputWithCursor) { |
| var headPos = cursorCoords(cm, doc.sel.primary().head, "div"); |
| var wrapOff = display.wrapper.getBoundingClientRect(), lineOff = display.lineDiv.getBoundingClientRect(); |
| result.teTop = Math.max(0, Math.min(display.wrapper.clientHeight - 10, |
| headPos.top + lineOff.top - wrapOff.top)); |
| result.teLeft = Math.max(0, Math.min(display.wrapper.clientWidth - 10, |
| headPos.left + lineOff.left - wrapOff.left)); |
| } |
| |
| return result |
| }; |
| |
| TextareaInput.prototype.showSelection = function (drawn) { |
| var cm = this.cm, display = cm.display; |
| removeChildrenAndAdd(display.cursorDiv, drawn.cursors); |
| removeChildrenAndAdd(display.selectionDiv, drawn.selection); |
| if (drawn.teTop != null) { |
| this.wrapper.style.top = drawn.teTop + "px"; |
| this.wrapper.style.left = drawn.teLeft + "px"; |
| } |
| }; |
| |
| // Reset the input to correspond to the selection (or to be empty, |
| // when not typing and nothing is selected) |
| TextareaInput.prototype.reset = function (typing) { |
| if (this.contextMenuPending || this.composing) { return } |
| var cm = this.cm; |
| if (cm.somethingSelected()) { |
| this.prevInput = ""; |
| var content = cm.getSelection(); |
| this.textarea.value = content; |
| if (cm.state.focused) { selectInput(this.textarea); } |
| if (ie && ie_version >= 9) { this.hasSelection = content; } |
| } else if (!typing) { |
| this.prevInput = this.textarea.value = ""; |
| if (ie && ie_version >= 9) { this.hasSelection = null; } |
| } |
| }; |
| |
| TextareaInput.prototype.getField = function () { return this.textarea }; |
| |
| TextareaInput.prototype.supportsTouch = function () { return false }; |
| |
| TextareaInput.prototype.focus = function () { |
| if (this.cm.options.readOnly != "nocursor" && (!mobile || activeElt() != this.textarea)) { |
| try { this.textarea.focus(); } |
| catch (e) {} // IE8 will throw if the textarea is display: none or not in DOM |
| } |
| }; |
| |
| TextareaInput.prototype.blur = function () { this.textarea.blur(); }; |
| |
| TextareaInput.prototype.resetPosition = function () { |
| this.wrapper.style.top = this.wrapper.style.left = 0; |
| }; |
| |
| TextareaInput.prototype.receivedFocus = function () { this.slowPoll(); }; |
| |
| // Poll for input changes, using the normal rate of polling. This |
| // runs as long as the editor is focused. |
| TextareaInput.prototype.slowPoll = function () { |
| var this$1 = this; |
| |
| if (this.pollingFast) { return } |
| this.polling.set(this.cm.options.pollInterval, function () { |
| this$1.poll(); |
| if (this$1.cm.state.focused) { this$1.slowPoll(); } |
| }); |
| }; |
| |
| // When an event has just come in that is likely to add or change |
| // something in the input textarea, we poll faster, to ensure that |
| // the change appears on the screen quickly. |
| TextareaInput.prototype.fastPoll = function () { |
| var missed = false, input = this; |
| input.pollingFast = true; |
| function p() { |
| var changed = input.poll(); |
| if (!changed && !missed) {missed = true; input.polling.set(60, p);} |
| else {input.pollingFast = false; input.slowPoll();} |
| } |
| input.polling.set(20, p); |
| }; |
| |
| // Read input from the textarea, and update the document to match. |
| // When something is selected, it is present in the textarea, and |
| // selected (unless it is huge, in which case a placeholder is |
| // used). When nothing is selected, the cursor sits after previously |
| // seen text (can be empty), which is stored in prevInput (we must |
| // not reset the textarea when typing, because that breaks IME). |
| TextareaInput.prototype.poll = function () { |
| var this$1 = this; |
| |
| var cm = this.cm, input = this.textarea, prevInput = this.prevInput; |
| // Since this is called a *lot*, try to bail out as cheaply as |
| // possible when it is clear that nothing happened. hasSelection |
| // will be the case when there is a lot of text in the textarea, |
| // in which case reading its value would be expensive. |
| if (this.contextMenuPending || !cm.state.focused || |
| (hasSelection(input) && !prevInput && !this.composing) || |
| cm.isReadOnly() || cm.options.disableInput || cm.state.keySeq) |
| { return false } |
| |
| var text = input.value; |
| // If nothing changed, bail. |
| if (text == prevInput && !cm.somethingSelected()) { return false } |
| // Work around nonsensical selection resetting in IE9/10, and |
| // inexplicable appearance of private area unicode characters on |
| // some key combos in Mac (#2689). |
| if (ie && ie_version >= 9 && this.hasSelection === text || |
| mac && /[\uf700-\uf7ff]/.test(text)) { |
| cm.display.input.reset(); |
| return false |
| } |
| |
| if (cm.doc.sel == cm.display.selForContextMenu) { |
| var first = text.charCodeAt(0); |
| if (first == 0x200b && !prevInput) { prevInput = "\u200b"; } |
| if (first == 0x21da) { this.reset(); return this.cm.execCommand("undo") } |
| } |
| // Find the part of the input that is actually new |
| var same = 0, l = Math.min(prevInput.length, text.length); |
| while (same < l && prevInput.charCodeAt(same) == text.charCodeAt(same)) { ++same; } |
| |
| runInOp(cm, function () { |
| applyTextInput(cm, text.slice(same), prevInput.length - same, |
| null, this$1.composing ? "*compose" : null); |
| |
| // Don't leave long text in the textarea, since it makes further polling slow |
| if (text.length > 1000 || text.indexOf("\n") > -1) { input.value = this$1.prevInput = ""; } |
| else { this$1.prevInput = text; } |
| |
| if (this$1.composing) { |
| this$1.composing.range.clear(); |
| this$1.composing.range = cm.markText(this$1.composing.start, cm.getCursor("to"), |
| {className: "CodeMirror-composing"}); |
| } |
| }); |
| return true |
| }; |
| |
| TextareaInput.prototype.ensurePolled = function () { |
| if (this.pollingFast && this.poll()) { this.pollingFast = false; } |
| }; |
| |
| TextareaInput.prototype.onKeyPress = function () { |
| if (ie && ie_version >= 9) { this.hasSelection = null; } |
| this.fastPoll(); |
| }; |
| |
| TextareaInput.prototype.onContextMenu = function (e) { |
| var input = this, cm = input.cm, display = cm.display, te = input.textarea; |
| if (input.contextMenuPending) { input.contextMenuPending(); } |
| var pos = posFromMouse(cm, e), scrollPos = display.scroller.scrollTop; |
| if (!pos || presto) { return } // Opera is difficult. |
| |
| // Reset the current text selection only if the click is done outside of the selection |
| // and 'resetSelectionOnContextMenu' option is true. |
| var reset = cm.options.resetSelectionOnContextMenu; |
| if (reset && cm.doc.sel.contains(pos) == -1) |
| { operation(cm, setSelection)(cm.doc, simpleSelection(pos), sel_dontScroll); } |
| |
| var oldCSS = te.style.cssText, oldWrapperCSS = input.wrapper.style.cssText; |
| var wrapperBox = input.wrapper.offsetParent.getBoundingClientRect(); |
| input.wrapper.style.cssText = "position: static"; |
| te.style.cssText = "position: absolute; width: 30px; height: 30px;\n top: " + (e.clientY - wrapperBox.top - 5) + "px; left: " + (e.clientX - wrapperBox.left - 5) + "px;\n z-index: 1000; background: " + (ie ? "rgba(255, 255, 255, .05)" : "transparent") + ";\n outline: none; border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);"; |
| var oldScrollY; |
| if (webkit) { oldScrollY = window.scrollY; } // Work around Chrome issue (#2712) |
| display.input.focus(); |
| if (webkit) { window.scrollTo(null, oldScrollY); } |
| display.input.reset(); |
| // Adds "Select all" to context menu in FF |
| if (!cm.somethingSelected()) { te.value = input.prevInput = " "; } |
| input.contextMenuPending = rehide; |
| display.selForContextMenu = cm.doc.sel; |
| clearTimeout(display.detectingSelectAll); |
| |
| // Select-all will be greyed out if there's nothing to select, so |
| // this adds a zero-width space so that we can later check whether |
| // it got selected. |
| function prepareSelectAllHack() { |
| if (te.selectionStart != null) { |
| var selected = cm.somethingSelected(); |
| var extval = "\u200b" + (selected ? te.value : ""); |
| te.value = "\u21da"; // Used to catch context-menu undo |
| te.value = extval; |
| input.prevInput = selected ? "" : "\u200b"; |
| te.selectionStart = 1; te.selectionEnd = extval.length; |
| // Re-set this, in case some other handler touched the |
| // selection in the meantime. |
| display.selForContextMenu = cm.doc.sel; |
| } |
| } |
| function rehide() { |
| if (input.contextMenuPending != rehide) { return } |
| input.contextMenuPending = false; |
| input.wrapper.style.cssText = oldWrapperCSS; |
| te.style.cssText = oldCSS; |
| if (ie && ie_version < 9) { display.scrollbars.setScrollTop(display.scroller.scrollTop = scrollPos); } |
| |
| // Try to detect the user choosing select-all |
| if (te.selectionStart != null) { |
| if (!ie || (ie && ie_version < 9)) { prepareSelectAllHack(); } |
| var i = 0, poll = function () { |
| if (display.selForContextMenu == cm.doc.sel && te.selectionStart == 0 && |
| te.selectionEnd > 0 && input.prevInput == "\u200b") { |
| operation(cm, selectAll)(cm); |
| } else if (i++ < 10) { |
| display.detectingSelectAll = setTimeout(poll, 500); |
| } else { |
| display.selForContextMenu = null; |
| display.input.reset(); |
| } |
| }; |
| display.detectingSelectAll = setTimeout(poll, 200); |
| } |
| } |
| |
| if (ie && ie_version >= 9) { prepareSelectAllHack(); } |
| if (captureRightClick) { |
| e_stop(e); |
| var mouseup = function () { |
| off(window, "mouseup", mouseup); |
| setTimeout(rehide, 20); |
| }; |
| on(window, "mouseup", mouseup); |
| } else { |
| setTimeout(rehide, 50); |
| } |
| }; |
| |
| TextareaInput.prototype.readOnlyChanged = function (val) { |
| if (!val) { this.reset(); } |
| this.textarea.disabled = val == "nocursor"; |
| }; |
| |
| TextareaInput.prototype.setUneditable = function () {}; |
| |
| TextareaInput.prototype.needsContentAttribute = false; |
| |
| function fromTextArea(textarea, options) { |
| options = options ? copyObj(options) : {}; |
| options.value = textarea.value; |
| if (!options.tabindex && textarea.tabIndex) |
| { options.tabindex = textarea.tabIndex; } |
| if (!options.placeholder && textarea.placeholder) |
| { options.placeholder = textarea.placeholder; } |
| // Set autofocus to true if this textarea is focused, or if it has |
| // autofocus and no other element is focused. |
| if (options.autofocus == null) { |
| var hasFocus = activeElt(); |
| options.autofocus = hasFocus == textarea || |
| textarea.getAttribute("autofocus") != null && hasFocus == document.body; |
| } |
| |
| function save() {textarea.value = cm.getValue();} |
| |
| var realSubmit; |
| if (textarea.form) { |
| on(textarea.form, "submit", save); |
| // Deplorable hack to make the submit method do the right thing. |
| if (!options.leaveSubmitMethodAlone) { |
| var form = textarea.form; |
| realSubmit = form.submit; |
| try { |
| var wrappedSubmit = form.submit = function () { |
| save(); |
| form.submit = realSubmit; |
| form.submit(); |
| form.submit = wrappedSubmit; |
| }; |
| } catch(e) {} |
| } |
| } |
| |
| options.finishInit = function (cm) { |
| cm.save = save; |
| cm.getTextArea = function () { return textarea; }; |
| cm.toTextArea = function () { |
| cm.toTextArea = isNaN; // Prevent this from being ran twice |
| save(); |
| textarea.parentNode.removeChild(cm.getWrapperElement()); |
| textarea.style.display = ""; |
| if (textarea.form) { |
| off(textarea.form, "submit", save); |
| if (typeof textarea.form.submit == "function") |
| { textarea.form.submit = realSubmit; } |
| } |
| }; |
| }; |
| |
| textarea.style.display = "none"; |
| var cm = CodeMirror(function (node) { return textarea.parentNode.insertBefore(node, textarea.nextSibling); }, |
| options); |
| return cm |
| } |
| |
| function addLegacyProps(CodeMirror) { |
| CodeMirror.off = off; |
| CodeMirror.on = on; |
| CodeMirror.wheelEventPixels = wheelEventPixels; |
| CodeMirror.Doc = Doc; |
| CodeMirror.splitLines = splitLinesAuto; |
| CodeMirror.countColumn = countColumn; |
| CodeMirror.findColumn = findColumn; |
| CodeMirror.isWordChar = isWordCharBasic; |
| CodeMirror.Pass = Pass; |
| CodeMirror.signal = signal; |
| CodeMirror.Line = Line; |
| CodeMirror.changeEnd = changeEnd; |
| CodeMirror.scrollbarModel = scrollbarModel; |
| CodeMirror.Pos = Pos; |
| CodeMirror.cmpPos = cmp; |
| CodeMirror.modes = modes; |
| CodeMirror.mimeModes = mimeModes; |
| CodeMirror.resolveMode = resolveMode; |
| CodeMirror.getMode = getMode; |
| CodeMirror.modeExtensions = modeExtensions; |
| CodeMirror.extendMode = extendMode; |
| CodeMirror.copyState = copyState; |
| CodeMirror.startState = startState; |
| CodeMirror.innerMode = innerMode; |
| CodeMirror.commands = commands; |
| CodeMirror.keyMap = keyMap; |
| CodeMirror.keyName = keyName; |
| CodeMirror.isModifierKey = isModifierKey; |
| CodeMirror.lookupKey = lookupKey; |
| CodeMirror.normalizeKeyMap = normalizeKeyMap; |
| CodeMirror.StringStream = StringStream; |
| CodeMirror.SharedTextMarker = SharedTextMarker; |
| CodeMirror.TextMarker = TextMarker; |
| CodeMirror.LineWidget = LineWidget; |
| CodeMirror.e_preventDefault = e_preventDefault; |
| CodeMirror.e_stopPropagation = e_stopPropagation; |
| CodeMirror.e_stop = e_stop; |
| CodeMirror.addClass = addClass; |
| CodeMirror.contains = contains; |
| CodeMirror.rmClass = rmClass; |
| CodeMirror.keyNames = keyNames; |
| } |
| |
| // EDITOR CONSTRUCTOR |
| |
| defineOptions(CodeMirror); |
| |
| addEditorMethods(CodeMirror); |
| |
| // Set up methods on CodeMirror's prototype to redirect to the editor's document. |
| var dontDelegate = "iter insert remove copy getEditor constructor".split(" "); |
| for (var prop in Doc.prototype) { if (Doc.prototype.hasOwnProperty(prop) && indexOf(dontDelegate, prop) < 0) |
| { CodeMirror.prototype[prop] = (function(method) { |
| return function() {return method.apply(this.doc, arguments)} |
| })(Doc.prototype[prop]); } } |
| |
| eventMixin(Doc); |
| CodeMirror.inputStyles = {"textarea": TextareaInput, "contenteditable": ContentEditableInput}; |
| |
| // Extra arguments are stored as the mode's dependencies, which is |
| // used by (legacy) mechanisms like loadmode.js to automatically |
| // load a mode. (Preferred mechanism is the require/define calls.) |
| CodeMirror.defineMode = function(name/*, mode, …*/) { |
| if (!CodeMirror.defaults.mode && name != "null") { CodeMirror.defaults.mode = name; } |
| defineMode.apply(this, arguments); |
| }; |
| |
| CodeMirror.defineMIME = defineMIME; |
| |
| // Minimal default mode. |
| CodeMirror.defineMode("null", function () { return ({token: function (stream) { return stream.skipToEnd(); }}); }); |
| CodeMirror.defineMIME("text/plain", "null"); |
| |
| // EXTENSIONS |
| |
| CodeMirror.defineExtension = function (name, func) { |
| CodeMirror.prototype[name] = func; |
| }; |
| CodeMirror.defineDocExtension = function (name, func) { |
| Doc.prototype[name] = func; |
| }; |
| |
| CodeMirror.fromTextArea = fromTextArea; |
| |
| addLegacyProps(CodeMirror); |
| |
| CodeMirror.version = "5.48.3"; |
| |
| return CodeMirror; |
| |
| }))); |