Implement Custom Elements' attributeChangedCallback.

Source/core/dom/Element.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Peter Kelly (pmk@post.com)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2007 David Smith (catfish.man@gmail.com)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012, 2013 Apple Inc. All rights reserved.
  *           (C) 2007 Eric Seidel (eric@webkit.org)
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 24 matching lines @@
 #include "core/css/CSSParser.h"
 #include "core/css/CSSStyleSheet.h"
 #include "core/css/CSSValuePool.h"
 #include "core/css/PropertySetCSSStyleDeclaration.h"
 #include "core/css/StylePropertySet.h"
 #include "core/css/resolver/StyleResolver.h"
 #include "core/dom/Attr.h"
 #include "core/dom/Attribute.h"
 #include "core/dom/ClientRect.h"
 #include "core/dom/ClientRectList.h"
+#include "core/dom/CustomElementCallbackDispatcher.h"
 #include "core/dom/CustomElementRegistry.h"
 #include "core/dom/DatasetDOMStringMap.h"
 #include "core/dom/Document.h"
 #include "core/dom/DocumentSharedObjectPool.h"
 #include "core/dom/ElementRareData.h"
 #include "core/dom/ExceptionCode.h"
 #include "core/dom/FullscreenController.h"
 #include "core/dom/MutationObserverInterestGroup.h"
 #include "core/dom/MutationRecord.h"
 #include "core/dom/NamedNodeMap.h"
@@ skipping 2741 matching lines @@
 
     if (oldValue != newValue) {
         if (attached() && document()->styleResolver() && document()->styleResolver()->hasSelectorForAttribute(name.localName()))
            setNeedsStyleRecalc();
     }
 
     if (OwnPtr<MutationObserverInterestGroup> recipients = MutationObserverInterestGroup::createForAttributesMutation(this, name))
         recipients->enqueueMutationRecord(MutationRecord::createAttributes(this, name, oldValue));
 
     InspectorInstrumentation::willModifyDOMAttr(document(), this, oldValue, newValue);
+
+    if (isUpgradedCustomElement()) {
+        RefPtr<CustomElementDefinition> definition = document()->registry()->findFor(this);
+        CustomElementCallbackDispatcher::instance().enqueueAttributeChangedCallback(definition->callbacks(), this, name.localName(), oldValue, newValue);
+    }
 }
 
 void Element::didAddAttribute(const QualifiedName& name, const AtomicString& value)
 {
     attributeChanged(name, value);
     InspectorInstrumentation::didModifyDOMAttr(document(), this, name.localName(), value);
     dispatchSubtreeModifiedEvent();
 }
 
 void Element::didModifyAttribute(const QualifiedName& name, const AtomicString& value)
@@ skipping 811 matching lines @@
     return 0;
 }
 
 Attribute* UniqueElementData::attributeItem(unsigned index)
 {
     ASSERT_WITH_SECURITY_IMPLICATION(index < length());
     return &m_attributeVector.at(index);
 }
 
 } // namespace WebCore