Index: third_party/WebKit/WebCore/bindings/v8/V8ObjectEventListener.cpp |
=================================================================== |
--- third_party/WebKit/WebCore/bindings/v8/V8ObjectEventListener.cpp (revision 0) |
+++ third_party/WebKit/WebCore/bindings/v8/V8ObjectEventListener.cpp (revision 11711) |
@@ -0,0 +1,75 @@ |
+/* |
+ * 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. |
+ */ |
+ |
+#include "config.h" |
+#include "V8ObjectEventListener.h" |
+ |
+#include "Frame.h" |
+#include "V8Proxy.h" |
+ |
+namespace WebCore { |
+ |
+static void weakObjectEventListenerCallback(v8::Persistent<v8::Value>, void* parameter) |
+{ |
+ V8ObjectEventListener* listener = static_cast<V8ObjectEventListener*>(parameter); |
+ |
+ // Remove the wrapper |
+ Frame* frame = listener->frame(); |
+ if (frame) { |
+ V8Proxy* proxy = V8Proxy::retrieve(frame); |
+ if (proxy) |
+ proxy->RemoveObjectEventListener(listener); |
+ |
+ // Because the listener is no longer in the list, it must be disconnected from the frame to avoid dangling frame pointer |
+ // in the destructor. |
+ listener->disconnectFrame(); |
+ } |
+ listener->disposeListenerObject(); |
+} |
+ |
+V8ObjectEventListener::V8ObjectEventListener(Frame* frame, v8::Local<v8::Object> listener, bool isInline) |
+ : V8EventListener(frame, listener, isInline) |
+{ |
+ m_listener.MakeWeak(this, weakObjectEventListenerCallback); |
+} |
+ |
+V8ObjectEventListener::~V8ObjectEventListener() |
+{ |
+ if (m_frame) { |
+ ASSERT(!m_listener.IsEmpty()); |
+ V8Proxy* proxy = V8Proxy::retrieve(m_frame); |
+ if (proxy) |
+ proxy->RemoveObjectEventListener(this); |
+ } |
+ |
+ disposeListenerObject(); |
+} |
+ |
+} // namespace WebCore |