[MutationObservers] Implement WebKitMutationObserver.observe for childList changes
https://bugs.webkit.org/show_bug.cgi?id=68955
Patch by Rafael Weinstein <rafaelw@chromium.org> on 2011-10-21
Reviewed by Ryosuke Niwa.
Source/WebCore:
This patch adds a ChildListMutationScope object which manages the coalescing of
multiple child removals and additions within DOM operations into single childList
mutation records.
Note that this patch doesn't cover all the cases which can be coalesced (it only
covers ContainerNode.*, and Node.innerHTML/innerText). A separate bug,
https://bugs.webkit.org/show_bug.cgi?id=70385, has been opened to track the
remaining cases.
Test: fast/mutation/observe-childList.html
* CMakeLists.txt:
* GNUmakefile.list.am:
* WebCore.gypi:
* WebCore.pro:
* WebCore.vcproj/WebCore.vcproj:
* WebCore.xcodeproj/project.pbxproj:
* dom/ChildListMutationScope.cpp: Added.
(WebCore::ChildListAccumulation::ChildListAccumulation::ChildListAccumulation):
(WebCore::ChildListAccumulation::ChildListAccumulation::~ChildListAccumulation):
(WebCore::ChildListAccumulation::ChildListAccumulation::childAdded):
(WebCore::ChildListAccumulation::ChildListAccumulation::willRemoveChild):
(WebCore::ChildListAccumulation::ChildListAccumulation::dispatch):
(WebCore::ChildListAccumulation::ChildListAccumulation::clear):
(WebCore::ChildListAccumulation::ChildListAccumulation::isEmpty):
(WebCore::ChildListAccumulation::ChildListAccumulator::ChildListAccumulator):
(WebCore::ChildListAccumulation::ChildListAccumulator::~ChildListAccumulator):
(WebCore::ChildListAccumulation::ChildListAccumulator::initialize):
(WebCore::ChildListAccumulation::ChildListAccumulator::instance):
(WebCore::ChildListAccumulation::ChildListAccumulator::childAdded):
(WebCore::ChildListAccumulation::ChildListAccumulator::willRemoveChild):
(WebCore::ChildListAccumulation::ChildListAccumulator::incrementScopingLevel):
(WebCore::ChildListAccumulation::ChildListAccumulator::decrementScopingLevel):
(WebCore::ChildListMutationScope::ChildListMutationScope):
(WebCore::ChildListMutationScope::~ChildListMutationScope):
(WebCore::ChildListMutationScope::childAdded):
(WebCore::ChildListMutationScope::willRemoveChild):
* dom/ChildListMutationScope.h: Added.
* dom/ContainerNode.cpp:
(WebCore::ContainerNode::insertBefore):
(WebCore::ContainerNode::replaceChild):
(WebCore::willRemoveChildren):
(WebCore::dispatchChildInsertionEvents):
(WebCore::dispatchChildRemovalEvents):
* dom/Element.cpp:
(WebCore::enqueueAttributesMutationRecord):
* dom/Node.cpp:
(WebCore::Node::setTextContent):
(WebCore::Node::registeredMutationObserversOfType):
* dom/WebKitMutationObserver.cpp:
(WebCore::WebKitMutationObserver::disconnect):
* html/HTMLElement.cpp:
(WebCore::replaceChildrenWithFragment):
(WebCore::replaceChildrenWithText):
LayoutTests:
* fast/mutation/observe-attributes-expected.txt:
* fast/mutation/observe-attributes.html:
* fast/mutation/observe-childList-expected.txt: Added.
* fast/mutation/observe-childList.html: Added.
git-svn-id: http://svn.webkit.org/repository/webkit/trunk@98121 268f45cc-cd09-0410-ab3c-d52691b4dbfc
19 files changed
