Implement Custom Elements' attributeChangedCallback.

Source/core/dom/CustomElementCallbackInvocation.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 10 matching lines @@
  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * 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>);
-
-    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); }
-
-    void processInElementQueue(ElementQueue);
+    AttributeChangedInvocation(const AtomicString& name, const AtomicString& oldValue, const AtomicString& newValue);
 
 private:
-    CustomElementCallbackQueue(PassRefPtr<CustomElementLifecycleCallbacks>, PassRefPtr<Element>);
-    void dispatch(const Invocation&);
+    virtual void dispatch(CustomElementLifecycleCallbacks*, Element*) OVERRIDE;
 
-    RefPtr<CustomElementLifecycleCallbacks> m_callbacks;
-    RefPtr<Element> m_element;
-    Vector<Invocation> m_queue;
-    ElementQueue m_owner;
-    size_t m_index;
+    AtomicString m_name;
+    AtomicString m_oldValue;
+    AtomicString m_newValue;
 };
 
+class CreatedInvocation : public CustomElementCallbackInvocation {
+public:
+    CreatedInvocation() { }
+private:
+    virtual void dispatch(CustomElementLifecycleCallbacks*, Element*) OVERRIDE;
+};
+
+PassOwnPtr<CustomElementCallbackInvocation> CustomElementCallbackInvocation::createCreatedInvocation()
+{
+    return adoptPtr(new CreatedInvocation());
 }
 
-#endif // CustomElementCallbackQueue_h
+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);
+}
+
+} // namespace WebCore