Moved files under Source/bindings/v8 to Source/bindings/core/v8.

Source/bindings/core/v8/V8AbstractEventListener.h

Index: Source/bindings/core/v8/V8AbstractEventListener.h
diff --git a/Source/bindings/core/v8/V8AbstractEventListener.h b/Source/bindings/core/v8/V8AbstractEventListener.h
new file mode 100644
index 0000000000000000000000000000000000000000..fc52f4521eafa2eee762897b1c5e39646c5b09e2
--- /dev/null
+++ b/Source/bindings/core/v8/V8AbstractEventListener.h
@@ -0,0 +1,158 @@
+/*
+ * Copyright (C) 2006, 2007, 2008, 2009 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
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * 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 V8AbstractEventListener_h
+#define V8AbstractEventListener_h
+
+#include "bindings/core/v8/DOMWrapperWorld.h"
+#include "bindings/core/v8/ScopedPersistent.h"
+#include "core/events/EventListener.h"
+#include "wtf/PassRefPtr.h"
+#include "wtf/RefCounted.h"
+#include <v8.h>
+
+namespace WebCore {
+
+class Event;
+
+// There are two kinds of event listeners: HTML or non-HMTL. onload,
+// onfocus, etc (attributes) are always HTML event handler type; Event
+// listeners added by Window.addEventListener or
+// EventTargetNode::addEventListener are non-HTML type.
+//
+// Why does this matter?
+// WebKit does not allow duplicated HTML event handlers of the same type,
+// but ALLOWs duplicated non-HTML event handlers.
+class V8AbstractEventListener : public EventListener {
+public:
+    virtual ~V8AbstractEventListener();
+
+    static const V8AbstractEventListener* cast(const EventListener* listener)
+    {
+        return listener->type() == JSEventListenerType
+            ? static_cast<const V8AbstractEventListener*>(listener)
+            : 0;
+    }
+
+    static V8AbstractEventListener* cast(EventListener* listener)
+    {
+        return const_cast<V8AbstractEventListener*>(cast(const_cast<const EventListener*>(listener)));
+    }
+
+    // Implementation of EventListener interface.
+
+    virtual bool operator==(const EventListener& other) OVERRIDE { return this == &other; }
+
+    virtual void handleEvent(ExecutionContext*, Event*) OVERRIDE;
+
+    virtual bool isLazy() const { return false; }
+
+    // Returns the listener object, either a function or an object.
+    v8::Local<v8::Object> getListenerObject(ExecutionContext* context)
+    {
+        // prepareListenerObject can potentially deref this event listener
+        // as it may attempt to compile a function (lazy event listener), get an error
+        // and invoke onerror callback which can execute arbitrary JS code.
+        // Protect this event listener to keep it alive.
+        RefPtr<V8AbstractEventListener> guard(this);
+        prepareListenerObject(context);
+        return m_listener.newLocal(m_isolate);
+    }
+
+    v8::Local<v8::Object> getExistingListenerObject()
+    {
+        return m_listener.newLocal(m_isolate);
+    }
+
+    // Provides access to the underlying handle for GC. Returned
+    // value is a weak handle and so not guaranteed to stay alive.
+    v8::Persistent<v8::Object>& existingListenerObjectPersistentHandle()
+    {
+        return m_listener.getUnsafe();
+    }
+
+    bool hasExistingListenerObject()
+    {
+        return !m_listener.isEmpty();
+    }
+
+    void clearListenerObject()
+    {
+        m_listener.clear();
+    }
+
+    virtual bool belongsToTheCurrentWorld() const OVERRIDE FINAL;
+    v8::Isolate* isolate() const { return m_isolate; }
+    virtual DOMWrapperWorld& world() const { return scriptState()->world(); }
+    ScriptState* scriptState() const
+    {
+        ASSERT(m_scriptState);
+        return m_scriptState.get();
+    }
+    void setScriptState(ScriptState* scriptState) { m_scriptState = scriptState; }
+
+protected:
+    V8AbstractEventListener(bool isAttribute, ScriptState*);
+    V8AbstractEventListener(bool isAttribute, v8::Isolate*);
+
+    virtual void prepareListenerObject(ExecutionContext*) { }
+
+    void setListenerObject(v8::Handle<v8::Object>);
+
+    void invokeEventHandler(Event*, v8::Local<v8::Value> jsEvent);
+
+    // Get the receiver object to use for event listener call.
+    v8::Local<v8::Object> getReceiverObject(Event*);
+
+private:
+    // Implementation of EventListener function.
+    virtual bool virtualisAttribute() const OVERRIDE { return m_isAttribute; }
+
+    virtual v8::Local<v8::Value> callListenerFunction(v8::Handle<v8::Value> jsevent, Event*) = 0;
+
+    virtual bool shouldPreventDefault(v8::Local<v8::Value> returnValue);
+
+    static void setWeakCallback(const v8::WeakCallbackData<v8::Object, V8AbstractEventListener>&);
+
+    ScopedPersistent<v8::Object> m_listener;
+
+    // Indicates if this is an HTML type listener.
+    bool m_isAttribute;
+
+    // For V8LazyEventListener, m_scriptState can be 0 until V8LazyEventListener is actually used.
+    // m_scriptState is set lazily because V8LazyEventListener doesn't know the associated frame
+    // until the listener is actually used.
+    RefPtr<ScriptState> m_scriptState;
+    v8::Isolate* m_isolate;
+};
+
+} // namespace WebCore
+
+#endif // V8AbstractEventListener_h