Index: third_party/WebKit/WebCore/bindings/v8/V8AbstractEventListener.h |
=================================================================== |
--- third_party/WebKit/WebCore/bindings/v8/V8AbstractEventListener.h (revision 0) |
+++ third_party/WebKit/WebCore/bindings/v8/V8AbstractEventListener.h (revision 11711) |
@@ -0,0 +1,98 @@ |
+/* |
+ * 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 "EventListener.h" |
+#include <v8.h> |
+ |
+namespace WebCore { |
+ |
+ class Event; |
+ class Frame; |
+ |
+ // 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() { } |
+ |
+ // Returns the owner frame of the listener. |
+ Frame* frame() { return m_frame; } |
+ |
+ virtual void handleEvent(Event*, bool isWindowEvent); |
+ void invokeEventHandler(v8::Handle<v8::Context>, Event*, v8::Handle<v8::Value> jsEvent, bool isWindowEvent); |
+ |
+ // Returns the listener object, either a function or an object. |
+ virtual v8::Local<v8::Object> getListenerObject() |
+ { |
+ return v8::Local<v8::Object>::New(m_listener); |
+ } |
+ |
+ // Dispose listener object and clear the handle. |
+ void disposeListenerObject(); |
+ |
+ virtual bool disconnected() const { return !m_frame; } |
+ |
+ protected: |
+ v8::Persistent<v8::Object> m_listener; |
+ |
+ // Indicates if this is an HTML type listener. |
+ bool m_isInline; |
+ |
+ private: |
+ V8AbstractEventListener(Frame*, bool isInline); |
+ |
+ virtual v8::Local<v8::Value> callListenerFunction(v8::Handle<v8::Value> jsevent, Event*, bool isWindowEvent) = 0; |
+ |
+ // Get the receiver object to use for event listener call. |
+ v8::Local<v8::Object> getReceiverObject(Event*, bool isWindowEvent); |
+ |
+ // Frame to which the event listener is attached to. An event listener must be destroyed before its owner frame is |
+ // deleted. See fast/dom/replaceChild.html |
+ // FIXME: this could hold m_frame live until the event listener is deleted. |
+ Frame* m_frame; |
+ |
+ // Position in the HTML source for HTML event listeners. |
+ int m_lineNumber; |
+ int m_columnNumber; |
+ |
+ friend class V8EventListener; |
+ friend class V8ObjectEventListener; |
+ friend class V8LazyEventListener; |
+ }; |
+ |
+} // namespace WebCore |
+ |
+#endif // V8AbstractEventListener_h |