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<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/204331">204331</a></dd>
<dt>Author</dt> <dd>cdumez@apple.com</dd>
<dt>Date</dt> <dd>2016-08-10 07:49:20 -0700 (Wed, 10 Aug 2016)</dd>
</dl>
<h3>Log Message</h3>
<pre>It should be possible to re-initialize a MutationEvent after it's been dispatched
https://bugs.webkit.org/show_bug.cgi?id=160703
Reviewed by Sam Weinig.
Source/WebCore:
It should be possible to re-initialize a MutationEvent after it's been dispatched,
similarly to Event:
- https://www.w3.org/TR/2015/WD-uievents-20151215/#widl-MutationEvent-initMutationEvent
Test: fast/events/initMutationEvent-after-dispatch.html
* dom/MutationEvent.cpp:
(WebCore::MutationEvent::initMutationEvent):
LayoutTests:
Add layout test coverage.
* fast/events/initMutationEvent-after-dispatch-expected.txt: Added.
* fast/events/initMutationEvent-after-dispatch.html: Added.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkLayoutTestsChangeLog">trunk/LayoutTests/ChangeLog</a></li>
<li><a href="#trunkSourceWebCoreChangeLog">trunk/Source/WebCore/ChangeLog</a></li>
<li><a href="#trunkSourceWebCoredomMutationEventcpp">trunk/Source/WebCore/dom/MutationEvent.cpp</a></li>
</ul>
<h3>Added Paths</h3>
<ul>
<li><a href="#trunkLayoutTestsfasteventsinitMutationEventafterdispatchexpectedtxt">trunk/LayoutTests/fast/events/initMutationEvent-after-dispatch-expected.txt</a></li>
<li><a href="#trunkLayoutTestsfasteventsinitMutationEventafterdispatchhtml">trunk/LayoutTests/fast/events/initMutationEvent-after-dispatch.html</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkLayoutTestsChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/ChangeLog (204330 => 204331)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/ChangeLog 2016-08-10 08:37:06 UTC (rev 204330)
+++ trunk/LayoutTests/ChangeLog 2016-08-10 14:49:20 UTC (rev 204331)
</span><span class="lines">@@ -1,3 +1,15 @@
</span><ins>+2016-08-10 Chris Dumez <cdumez@apple.com>
+
+ It should be possible to re-initialize a MutationEvent after it's been dispatched
+ https://bugs.webkit.org/show_bug.cgi?id=160703
+
+ Reviewed by Sam Weinig.
+
+ Add layout test coverage.
+
+ * fast/events/initMutationEvent-after-dispatch-expected.txt: Added.
+ * fast/events/initMutationEvent-after-dispatch.html: Added.
+
</ins><span class="cx"> 2016-08-09 Chris Dumez <cdumez@apple.com>
</span><span class="cx">
</span><span class="cx"> Optimization in Node::appendChild() is not spec-compliant
</span></span></pre></div>
<a id="trunkLayoutTestsfasteventsinitMutationEventafterdispatchexpectedtxt"></a>
<div class="addfile"><h4>Added: trunk/LayoutTests/fast/events/initMutationEvent-after-dispatch-expected.txt (0 => 204331)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/fast/events/initMutationEvent-after-dispatch-expected.txt (rev 0)
+++ trunk/LayoutTests/fast/events/initMutationEvent-after-dispatch-expected.txt 2016-08-10 14:49:20 UTC (rev 204331)
</span><span class="lines">@@ -0,0 +1,55 @@
</span><ins>+Tests calling initMutationEvent() on a mutation event while it is being dispatched and after.
+
+On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
+
+
+PASS testEvent.__proto__ is MutationEvent.prototype
+PASS testEvent.initMutationEvent("foo", true, false, document.body) did not throw exception.
+PASS testEvent.type is "foo"
+PASS testEvent.bubbles is true
+PASS testEvent.cancelable is false
+PASS testEvent.target is null
+PASS testEvent.currentTarget is null
+PASS testEvent.eventPhase is Event.NONE
+PASS testEvent.relatedNode is document.body
+
+* In event handler
+PASS event.type is "foo"
+PASS event.bubbles is true
+PASS event.cancelable is false
+PASS event.target is document.body
+PASS event.currentTarget is document.body
+PASS event.eventPhase is Event.AT_TARGET
+PASS event.relatedNode is document.body
+
+PASS event.initMutationEvent("bar", false, true, document.documentElement) did not throw exception.
+PASS event.type is "foo"
+PASS event.bubbles is true
+PASS event.cancelable is false
+PASS event.target is document.body
+PASS event.currentTarget is document.body
+PASS event.eventPhase is Event.AT_TARGET
+PASS event.relatedNode is document.body
+PASS document.body.dispatchEvent(testEvent) did not throw exception.
+
+* After event has been dispatched
+PASS testEvent.type is "foo"
+PASS testEvent.bubbles is true
+PASS testEvent.cancelable is false
+PASS testEvent.target is document.body
+PASS testEvent.currentTarget is null
+PASS testEvent.eventPhase is Event.NONE
+PASS testEvent.relatedNode is document.body
+
+PASS testEvent.initMutationEvent("bar", false, true, document.documentElement) did not throw exception.
+PASS testEvent.type is "bar"
+PASS testEvent.bubbles is false
+PASS testEvent.cancelable is true
+PASS testEvent.target is null
+PASS testEvent.currentTarget is null
+PASS testEvent.eventPhase is Event.NONE
+PASS testEvent.relatedNode is document.documentElement
+PASS successfullyParsed is true
+
+TEST COMPLETE
+
</ins></span></pre></div>
<a id="trunkLayoutTestsfasteventsinitMutationEventafterdispatchhtml"></a>
<div class="addfile"><h4>Added: trunk/LayoutTests/fast/events/initMutationEvent-after-dispatch.html (0 => 204331)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/fast/events/initMutationEvent-after-dispatch.html (rev 0)
+++ trunk/LayoutTests/fast/events/initMutationEvent-after-dispatch.html 2016-08-10 14:49:20 UTC (rev 204331)
</span><span class="lines">@@ -0,0 +1,69 @@
</span><ins>+<!DOCTYPE html>
+<html>
+<body>
+<script src="../../resources/js-test-pre.js"></script>
+<script>
+description("Tests calling initMutationEvent() on a mutation event while it is being dispatched and after.");
+
+function eventHandler(ev) {
+ event = ev;
+ debug("");
+ debug("* In event handler");
+ shouldBeEqualToString("event.type", "foo");
+ shouldBeTrue("event.bubbles");
+ shouldBeFalse("event.cancelable");
+ shouldBe("event.target", "document.body");
+ shouldBe("event.currentTarget", "document.body");
+ shouldBe("event.eventPhase", "Event.AT_TARGET");
+ shouldBe("event.relatedNode", "document.body");
+
+ debug("");
+ // It should not be possible to re-initialize an event being dispatched.
+ shouldNotThrow('event.initMutationEvent("bar", false, true, document.documentElement)');
+ shouldBeEqualToString("event.type", "foo");
+ shouldBeTrue("event.bubbles");
+ shouldBeFalse("event.cancelable");
+ shouldBe("event.target", "document.body");
+ shouldBe("event.currentTarget", "document.body");
+ shouldBe("event.eventPhase", "Event.AT_TARGET");
+ shouldBe("event.relatedNode", "document.body");
+}
+
+var testEvent = document.createEvent("mutationevent");
+shouldBe("testEvent.__proto__", "MutationEvent.prototype");
+shouldNotThrow('testEvent.initMutationEvent("foo", true, false, document.body)');
+shouldBeEqualToString("testEvent.type", "foo");
+shouldBeTrue("testEvent.bubbles");
+shouldBeFalse("testEvent.cancelable");
+shouldBeNull("testEvent.target");
+shouldBeNull("testEvent.currentTarget");
+shouldBe("testEvent.eventPhase", "Event.NONE");
+shouldBe("testEvent.relatedNode", "document.body");
+
+document.body.addEventListener("foo", eventHandler);
+shouldNotThrow('document.body.dispatchEvent(testEvent)');
+
+debug("");
+debug("* After event has been dispatched");
+shouldBeEqualToString("testEvent.type", "foo");
+shouldBeTrue("testEvent.bubbles");
+shouldBeFalse("testEvent.cancelable");
+shouldBe("testEvent.target", "document.body");
+shouldBeNull("testEvent.currentTarget");
+shouldBe("testEvent.eventPhase", "Event.NONE");
+shouldBe("testEvent.relatedNode", "document.body");
+
+// It should now be possible to re-initialize the event.
+debug("");
+shouldNotThrow('testEvent.initMutationEvent("bar", false, true, document.documentElement)');
+shouldBeEqualToString("testEvent.type", "bar");
+shouldBeFalse("testEvent.bubbles");
+shouldBeTrue("testEvent.cancelable");
+shouldBeNull("testEvent.target");
+shouldBeNull("testEvent.currentTarget");
+shouldBe("testEvent.eventPhase", "Event.NONE");
+shouldBe("testEvent.relatedNode", "document.documentElement");
+</script>
+<script src="../../resources/js-test-post.js"></script>
+</body>
+</html>
</ins></span></pre></div>
<a id="trunkSourceWebCoreChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/ChangeLog (204330 => 204331)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/ChangeLog 2016-08-10 08:37:06 UTC (rev 204330)
+++ trunk/Source/WebCore/ChangeLog 2016-08-10 14:49:20 UTC (rev 204331)
</span><span class="lines">@@ -1,3 +1,19 @@
</span><ins>+2016-08-10 Chris Dumez <cdumez@apple.com>
+
+ It should be possible to re-initialize a MutationEvent after it's been dispatched
+ https://bugs.webkit.org/show_bug.cgi?id=160703
+
+ Reviewed by Sam Weinig.
+
+ It should be possible to re-initialize a MutationEvent after it's been dispatched,
+ similarly to Event:
+ - https://www.w3.org/TR/2015/WD-uievents-20151215/#widl-MutationEvent-initMutationEvent
+
+ Test: fast/events/initMutationEvent-after-dispatch.html
+
+ * dom/MutationEvent.cpp:
+ (WebCore::MutationEvent::initMutationEvent):
+
</ins><span class="cx"> 2016-08-10 Yusuke Suzuki <utatane.tea@gmail.com>
</span><span class="cx">
</span><span class="cx"> [ES6] Add ModuleLoaderPrototype and move methods to it
</span></span></pre></div>
<a id="trunkSourceWebCoredomMutationEventcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/dom/MutationEvent.cpp (204330 => 204331)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/dom/MutationEvent.cpp 2016-08-10 08:37:06 UTC (rev 204330)
+++ trunk/Source/WebCore/dom/MutationEvent.cpp 2016-08-10 14:49:20 UTC (rev 204331)
</span><span class="lines">@@ -51,7 +51,7 @@
</span><span class="cx"> const String& prevValue, const String& newValue,
</span><span class="cx"> const String& attrName, unsigned short attrChange)
</span><span class="cx"> {
</span><del>- if (dispatched())
</del><ins>+ if (isBeingDispatched())
</ins><span class="cx"> return;
</span><span class="cx">
</span><span class="cx"> initEvent(type, canBubble, cancelable);
</span></span></pre>
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