| <!DOCTYPE html> |
| <meta charset=utf-8> |
| <title>EventTarget.dispatchEvent</title> |
| <link rel="author" title="Olli Pettay" href="mailto:Olli.Pettay@gmail.com"> |
| <link rel="author" title="Ms2ger" href="mailto:Ms2ger@gmail.com"> |
| <link rel="help" href="https://dom.spec.whatwg.org/#dom-eventtarget-dispatchevent"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/dom/nodes/Document-createEvent.js"></script> |
| <div id="log"></div> |
| <script> |
| setup({ |
| "allow_uncaught_exception": true, |
| }) |
| |
| test(function() { |
| assert_throws(new TypeError(), function() { document.dispatchEvent(null) }) |
| }, "Calling dispatchEvent(null).") |
| |
| aliases.forEach(function(alias) { |
| test(function() { |
| var e = document.createEvent(alias[0]) |
| assert_equals(e.type, "", "Event type should be empty string before initialization") |
| assert_throws("InvalidStateError", function() { document.dispatchEvent(e) }) |
| }, "If the event's initialized flag is not set, an InvalidStateError must be thrown (" + alias [0] + ").") |
| }) |
| |
| var dispatch_dispatch = async_test("If the event's dispatch flag is set, an InvalidStateError must be thrown.") |
| dispatch_dispatch.step(function() { |
| var e = document.createEvent("Event") |
| e.initEvent("type", false, false) |
| |
| var target = document.createElement("div") |
| target.addEventListener("type", dispatch_dispatch.step_func(function() { |
| assert_throws("InvalidStateError", function() { |
| target.dispatchEvent(e) |
| }) |
| assert_throws("InvalidStateError", function() { |
| document.dispatchEvent(e) |
| }) |
| }), false) |
| |
| assert_equals(target.dispatchEvent(e), true, "dispatchEvent must return true") |
| |
| dispatch_dispatch.done() |
| }) |
| |
| test(function() { |
| // https://www.w3.org/Bugs/Public/show_bug.cgi?id=17713 |
| // https://www.w3.org/Bugs/Public/show_bug.cgi?id=17714 |
| |
| var e = document.createEvent("Event") |
| e.initEvent("type", false, false) |
| |
| var called = [] |
| |
| var target = document.createElement("div") |
| target.addEventListener("type", function() { |
| called.push("First") |
| throw new Error() |
| }, false) |
| |
| target.addEventListener("type", function() { |
| called.push("Second") |
| }, false) |
| |
| assert_equals(target.dispatchEvent(e), true, "dispatchEvent must return true") |
| assert_array_equals(called, ["First", "Second"], |
| "Should have continued to call other event listeners") |
| }, "Exceptions from event listeners must not be propagated.") |
| |
| async_test(function() { |
| var results = [] |
| var outerb = document.createElement("b") |
| var middleb = outerb.appendChild(document.createElement("b")) |
| var innerb = middleb.appendChild(document.createElement("b")) |
| outerb.addEventListener("x", this.step_func(function() { |
| middleb.addEventListener("x", this.step_func(function() { |
| results.push("middle") |
| }), true) |
| results.push("outer") |
| }), true) |
| innerb.dispatchEvent(new Event("x")) |
| assert_array_equals(results, ["outer", "middle"]) |
| this.done() |
| }, "Event listeners added during dispatch should be called"); |
| |
| async_test(function() { |
| var results = [] |
| var b = document.createElement("b") |
| b.addEventListener("x", this.step_func(function() { |
| results.push(1) |
| }), true) |
| b.addEventListener("x", this.step_func(function() { |
| results.push(2) |
| }), false) |
| b.addEventListener("x", this.step_func(function() { |
| results.push(3) |
| }), true) |
| b.dispatchEvent(new Event("x")) |
| assert_array_equals(results, [1, 2, 3]) |
| this.done() |
| }, "Event listeners should be called in order of addition") |
| </script> |
