| /* |
| * Copyright 2014 Google Inc. All Rights Reserved. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef COBALT_LAYOUT_LAYOUT_H_ |
| #define COBALT_LAYOUT_LAYOUT_H_ |
| |
| #include "cobalt/dom/document.h" |
| #include "cobalt/layout/block_formatting_block_container_box.h" |
| #include "cobalt/loader/image/image_cache.h" |
| #include "cobalt/math/size_f.h" |
| #include "cobalt/render_tree/animations/animate_node.h" |
| #include "cobalt/render_tree/node.h" |
| #include "cobalt/render_tree/resource_provider.h" |
| #include "third_party/icu/public/common/unicode/brkiter.h" |
| #include "third_party/icu/public/common/unicode/locid.h" |
| |
| namespace cobalt { |
| namespace layout { |
| |
| class UsedStyleProvider; |
| |
| // Layout engine supports a subset of CSS. |
| // TODO: Add markdown doc of supported CSS subset. |
| // |
| // Most of the code conforms to CSS Level 3 specifications, although the basic |
| // box model is intentionally implemented after CSS 2.1 |
| // (https://www.w3.org/TR/CSS2/visuren.html) as recommended by a newer draft |
| // (http://dev.w3.org/csswg/css-box/) which is undergoing active changes. |
| |
| // Update the computed styles, then generate and layout the box tree. |
| void UpdateComputedStylesAndLayoutBoxTree( |
| const icu::Locale& locale, const scoped_refptr<dom::Document>& document, |
| UsedStyleProvider* used_style_provider, |
| LayoutStatTracker* layout_stat_tracker, |
| icu::BreakIterator* line_break_iterator, |
| icu::BreakIterator* character_break_iterator, |
| scoped_refptr<BlockLevelBlockContainerBox>* initial_containing_block); |
| |
| // Main entry point to the layout engine. |
| // Produces the render tree (along with corresponding animations) which is a |
| // result of recursive layout of the given HTML element. |
| scoped_refptr<render_tree::Node> Layout( |
| const icu::Locale& locale, const scoped_refptr<dom::Document>& document, |
| UsedStyleProvider* used_style_provider, |
| LayoutStatTracker* layout_stat_tracker, |
| icu::BreakIterator* line_break_iterator, |
| icu::BreakIterator* character_break_iterator, |
| scoped_refptr<BlockLevelBlockContainerBox>* initial_containing_block); |
| |
| } // namespace layout |
| } // namespace cobalt |
| |
| #endif // COBALT_LAYOUT_LAYOUT_H_ |