Implement Custom Elements' attributeChangedCallback.

Source/core/dom/CustomElementCallbackInvocation.cpp

Index: Source/core/dom/CustomElementCallbackInvocation.cpp
diff --git a/Source/core/dom/CustomElementCallbackQueue.h b/Source/core/dom/CustomElementCallbackInvocation.cpp
similarity index 51%
copy from Source/core/dom/CustomElementCallbackQueue.h
copy to Source/core/dom/CustomElementCallbackInvocation.cpp
index 236297d9f02c76b6a143bd90e70d10ad205be5e6..3b6aab9befaf419897f181b78258a1c9b330a3ec 100644
--- a/Source/core/dom/CustomElementCallbackQueue.h
+++ b/Source/core/dom/CustomElementCallbackInvocation.cpp
@@ -28,48 +28,57 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef CustomElementCallbackQueue_h
-#define CustomElementCallbackQueue_h
+#include "config.h"
+#include "core/dom/CustomElementCallbackInvocation.h"
 
 #include "core/dom/CustomElementLifecycleCallbacks.h"
-#include "wtf/PassOwnPtr.h"
-#include "wtf/PassRefPtr.h"
-#include "wtf/RefPtr.h"
-#include "wtf/Vector.h"
 
 namespace WebCore {
 
-class CustomElementCallbackQueue {
-    WTF_MAKE_NONCOPYABLE(CustomElementCallbackQueue);
+class AttributeChangedInvocation : public CustomElementCallbackInvocation {
 public:
-    static PassOwnPtr<CustomElementCallbackQueue> create(PassRefPtr<CustomElementLifecycleCallbacks>, PassRefPtr<Element>);
+    AttributeChangedInvocation(const AtomicString& name, const AtomicString& oldValue, const AtomicString& newValue);
 
-    typedef int ElementQueue;
-    ElementQueue owner() { return m_owner; }
-    void setOwner(ElementQueue newOwner)
-    {
-        // ElementCallbackQueues only migrate towards the top of the
-        // processing stack.
-        ASSERT(newOwner >= m_owner);
-        m_owner = newOwner;
-    }
-
-    typedef CustomElementLifecycleCallbacks::CallbackType Invocation;
-    void append(const Invocation& invocation) { m_queue.append(invocation); }
+private:
+    virtual void dispatch(CustomElementLifecycleCallbacks*, Element*) OVERRIDE;
 
-    void processInElementQueue(ElementQueue);
+    AtomicString m_name;
+    AtomicString m_oldValue;
+    AtomicString m_newValue;
+};
 
+class CreatedInvocation : public CustomElementCallbackInvocation {
+public:
+    CreatedInvocation() { }
 private:
-    CustomElementCallbackQueue(PassRefPtr<CustomElementLifecycleCallbacks>, PassRefPtr<Element>);
-    void dispatch(const Invocation&);
-
-    RefPtr<CustomElementLifecycleCallbacks> m_callbacks;
-    RefPtr<Element> m_element;
-    Vector<Invocation> m_queue;
-    ElementQueue m_owner;
-    size_t m_index;
+    virtual void dispatch(CustomElementLifecycleCallbacks*, Element*) OVERRIDE;
 };
 
+PassOwnPtr<CustomElementCallbackInvocation> CustomElementCallbackInvocation::createCreatedInvocation()
+{
+    return adoptPtr(new CreatedInvocation());
+}
+
+PassOwnPtr<CustomElementCallbackInvocation> CustomElementCallbackInvocation::createAttributeChangedInvocation(const AtomicString& name, const AtomicString& oldValue, const AtomicString& newValue)
+{
+    return adoptPtr(new AttributeChangedInvocation(name, oldValue, newValue));
+}
+
+AttributeChangedInvocation::AttributeChangedInvocation(const AtomicString& name, const AtomicString& oldValue, const AtomicString& newValue)
+    : m_name(name)
+    , m_oldValue(oldValue)
+    , m_newValue(newValue)
+{
+}
+
+void AttributeChangedInvocation::dispatch(CustomElementLifecycleCallbacks* callbacks, Element* element)
+{
+    callbacks->attributeChanged(element, m_name, m_oldValue, m_newValue);
+}
+
+void CreatedInvocation::dispatch(CustomElementLifecycleCallbacks* callbacks, Element* element)
+{
+    callbacks->created(element);
 }
 
-#endif // CustomElementCallbackQueue_h
+} // namespace WebCore