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| 1 /* |
| 2 * Copyright (C) 2006, 2007, 2008, 2009 Google Inc. All rights reserved. |
| 3 * |
| 4 * Redistribution and use in source and binary forms, with or without |
| 5 * modification, are permitted provided that the following conditions are |
| 6 * met: |
| 7 * |
| 8 * * Redistributions of source code must retain the above copyright |
| 9 * notice, this list of conditions and the following disclaimer. |
| 10 * * Redistributions in binary form must reproduce the above |
| 11 * copyright notice, this list of conditions and the following disclaimer |
| 12 * in the documentation and/or other materials provided with the |
| 13 * distribution. |
| 14 * * Neither the name of Google Inc. nor the names of its |
| 15 * contributors may be used to endorse or promote products derived from |
| 16 * this software without specific prior written permission. |
| 17 * |
| 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 29 */ |
| 30 |
| 31 #include "config.h" |
| 32 #include "V8ObjectEventListener.h" |
| 33 |
| 34 #include "Frame.h" |
| 35 #include "V8Proxy.h" |
| 36 |
| 37 namespace WebCore { |
| 38 |
| 39 static void weakObjectEventListenerCallback(v8::Persistent<v8::Value>, void* par
ameter) |
| 40 { |
| 41 V8ObjectEventListener* listener = static_cast<V8ObjectEventListener*>(parame
ter); |
| 42 |
| 43 // Remove the wrapper |
| 44 Frame* frame = listener->frame(); |
| 45 if (frame) { |
| 46 V8Proxy* proxy = V8Proxy::retrieve(frame); |
| 47 if (proxy) |
| 48 proxy->RemoveObjectEventListener(listener); |
| 49 |
| 50 // Because the listener is no longer in the list, it must be disconnecte
d from the frame to avoid dangling frame pointer |
| 51 // in the destructor. |
| 52 listener->disconnectFrame(); |
| 53 } |
| 54 listener->disposeListenerObject(); |
| 55 } |
| 56 |
| 57 V8ObjectEventListener::V8ObjectEventListener(Frame* frame, v8::Local<v8::Object>
listener, bool isInline) |
| 58 : V8EventListener(frame, listener, isInline) |
| 59 { |
| 60 m_listener.MakeWeak(this, weakObjectEventListenerCallback); |
| 61 } |
| 62 |
| 63 V8ObjectEventListener::~V8ObjectEventListener() |
| 64 { |
| 65 if (m_frame) { |
| 66 ASSERT(!m_listener.IsEmpty()); |
| 67 V8Proxy* proxy = V8Proxy::retrieve(m_frame); |
| 68 if (proxy) |
| 69 proxy->RemoveObjectEventListener(this); |
| 70 } |
| 71 |
| 72 disposeListenerObject(); |
| 73 } |
| 74 |
| 75 } // namespace WebCore |
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