2 * Copyright (C) 2011 Google, Inc. All Rights Reserved.
3 * Copyright (C) 2012 Apple Inc. All Rights Reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY GOOGLE INC. ``AS IS'' AND ANY
15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 #include "core/frame/DOMWindowProperty.h"
30 #include "core/dom/Document.h"
31 #include "core/frame/DOMWindow.h"
32 #include "core/frame/LocalFrame.h"
36 DOMWindowProperty::DOMWindowProperty(LocalFrame* frame)
38 , m_associatedDOMWindow(0)
40 // FIXME: For now it *is* acceptable for a DOMWindowProperty to be created with a null frame.
41 // See fast/dom/navigator-detached-no-crash.html for the recipe.
42 // We should fix that. <rdar://problem/11567132>
44 m_associatedDOMWindow = m_frame->domWindow();
45 m_associatedDOMWindow->registerProperty(this);
49 DOMWindowProperty::~DOMWindowProperty()
51 if (m_associatedDOMWindow)
52 m_associatedDOMWindow->unregisterProperty(this);
54 m_associatedDOMWindow = 0;
58 void DOMWindowProperty::willDestroyGlobalObjectInFrame()
60 // If the property is getting this callback it must have been created with a LocalFrame/DOMWindow and it should still have them.
62 ASSERT(m_associatedDOMWindow);
64 // DOMWindowProperty lifetime isn't tied directly to the DOMWindow itself so it is important that it unregister
65 // itself from any DOMWindow it is associated with if that DOMWindow is going away.
66 if (m_associatedDOMWindow)
67 m_associatedDOMWindow->unregisterProperty(this);
68 m_associatedDOMWindow = 0;
72 void DOMWindowProperty::willDetachGlobalObjectFromFrame()
74 // If the property is getting this callback it must have been created with a LocalFrame/DOMWindow and it should still have them.
76 ASSERT(m_associatedDOMWindow);