Implement Custom Elements inserted and removed callbacks.

Source/bindings/v8/V8CustomElementCallback.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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 22 matching lines @@
 
 #include "V8Element.h"
 #include "bindings/v8/ScriptController.h"
 #include "bindings/v8/V8Binding.h"
 #include "bindings/v8/V8HiddenPropertyName.h"
 #include "core/dom/ScriptExecutionContext.h"
 #include "wtf/PassRefPtr.h"
 
 namespace WebCore {
 
-PassRefPtr<V8CustomElementCallback> V8CustomElementCallback::create(ScriptExecutionContext* scriptExecutionContext, v8::Handle<v8::Object> owner, v8::Handle<v8::Function> ready)
+PassRefPtr<V8CustomElementCallback> V8CustomElementCallback::create(ScriptExecutionContext* scriptExecutionContext, v8::Handle<v8::Object> owner, v8::Handle<v8::Function> ready, v8::Handle<v8::Function> inserted, v8::Handle<v8::Function> removed)
 {
     if (!ready.IsEmpty())
         owner->SetHiddenValue(V8HiddenPropertyName::customElementReady(), ready);
-    return adoptRef(new V8CustomElementCallback(scriptExecutionContext, ready));
+    if (!inserted.IsEmpty())
+        owner->SetHiddenValue(V8HiddenPropertyName::customElementInserted(), inserted);
+    if (!removed.IsEmpty())
+        owner->SetHiddenValue(V8HiddenPropertyName::customElementRemoved(), removed);
+    return adoptRef(new V8CustomElementCallback(scriptExecutionContext, ready, inserted, removed));
 }
 
 static void weakCallback(v8::Isolate*, v8::Persistent<v8::Function>*, ScopedPersistent<v8::Function>* handle)
 {
     handle->clear();
 }
 
-V8CustomElementCallback::V8CustomElementCallback(ScriptExecutionContext* scriptExecutionContext, v8::Handle<v8::Function> ready)
-    : CustomElementCallback(ready.IsEmpty() ? None : Ready)
+V8CustomElementCallback::V8CustomElementCallback(ScriptExecutionContext* scriptExecutionContext, v8::Handle<v8::Function> ready, v8::Handle<v8::Function> inserted, v8::Handle<v8::Function> removed)
+    : CustomElementCallback(CallbackType((ready.IsEmpty() ? None : Ready) | (inserted.IsEmpty() ? None : Inserted) | (removed.IsEmpty() ? None : Removed)))
     , ActiveDOMCallback(scriptExecutionContext)
     , m_world(DOMWrapperWorld::current())
     , m_ready(ready)
+    , m_inserted(inserted)
+    , m_removed(removed)
 {
     if (!m_ready.isEmpty())
         m_ready.makeWeak(&m_ready, weakCallback);
+    if (!m_inserted.isEmpty())
+        m_inserted.makeWeak(&m_inserted, weakCallback);
+    if (!m_removed.isEmpty())
+        m_removed.makeWeak(&m_removed, weakCallback);
 }
 
 void V8CustomElementCallback::ready(Element* element)
 {
+    invoke(m_ready, element);
+}
+
+void V8CustomElementCallback::inserted(Element* element)
+{
+    invoke(m_inserted, element);
+}
+
+void V8CustomElementCallback::removed(Element* element)
+{
+    invoke(m_removed, element);
+}
+
+void V8CustomElementCallback::invoke(const ScopedPersistent<v8::Function>& callback, Element* element)
+{
     if (!canInvokeCallback())
         return;
 
     v8::HandleScope handleScope;
 
     v8::Handle<v8::Context> context = toV8Context(scriptExecutionContext(), m_world.get());
     if (context.IsEmpty())
         return;
 
     v8::Context::Scope scope(context);
     v8::Isolate* isolate = context->GetIsolate();
 
-    v8::Handle<v8::Function> callback = m_ready.newLocal(isolate);
-    if (callback.IsEmpty())
+    v8::Handle<v8::Function> localCallback = callback.newLocal(isolate);
+    if (localCallback.IsEmpty())
         return;
 
     v8::Handle<v8::Value> elementHandle = toV8(element, context->Global(), isolate);
     if (elementHandle.IsEmpty()) {
         if (!isScriptControllerTerminating())
             CRASH();
         return;
     }
 
     ASSERT(elementHandle->IsObject());
     v8::Handle<v8::Object> receiver = v8::Handle<v8::Object>::Cast(elementHandle);
 
     v8::TryCatch exceptionCatcher;
     exceptionCatcher.SetVerbose(true);
-    ScriptController::callFunctionWithInstrumentation(scriptExecutionContext(), callback, receiver, 0, 0);
+    ScriptController::callFunctionWithInstrumentation(scriptExecutionContext(), localCallback, receiver, 0, 0);
 }
 
 } // namespace WebCore