| /* |
| * Copyright (C) 2011 Google, Inc. All Rights Reserved. |
| * Copyright (C) 2012 Apple 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: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. 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. |
| * |
| * THIS SOFTWARE IS PROVIDED BY GOOGLE INC. ``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 APPLE INC. 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 "sky/engine/core/frame/DOMWindowProperty.h" |
| |
| #include "sky/engine/core/frame/LocalDOMWindow.h" |
| #include "sky/engine/core/frame/LocalFrame.h" |
| |
| namespace blink { |
| |
| DOMWindowProperty::DOMWindowProperty(LocalFrame* frame) |
| : m_frame(frame) |
| , m_associatedDOMWindow(0) |
| { |
| // FIXME: For now it *is* acceptable for a DOMWindowProperty to be created with a null frame. |
| // See fast/dom/navigator-detached-no-crash.html for the recipe. |
| // We should fix that. <rdar://problem/11567132> |
| if (m_frame) { |
| m_associatedDOMWindow = m_frame->domWindow(); |
| m_associatedDOMWindow->registerProperty(this); |
| } |
| } |
| |
| DOMWindowProperty::~DOMWindowProperty() |
| { |
| if (m_associatedDOMWindow) |
| m_associatedDOMWindow->unregisterProperty(this); |
| |
| m_associatedDOMWindow = 0; |
| m_frame = 0; |
| } |
| |
| void DOMWindowProperty::willDestroyGlobalObjectInFrame() |
| { |
| // If the property is getting this callback it must have been created with a LocalFrame/LocalDOMWindow and it should still have them. |
| ASSERT(m_frame); |
| ASSERT(m_associatedDOMWindow); |
| |
| // DOMWindowProperty lifetime isn't tied directly to the LocalDOMWindow itself so it is important that it unregister |
| // itself from any LocalDOMWindow it is associated with if that LocalDOMWindow is going away. |
| if (m_associatedDOMWindow) |
| m_associatedDOMWindow->unregisterProperty(this); |
| m_associatedDOMWindow = 0; |
| m_frame = 0; |
| } |
| |
| void DOMWindowProperty::willDetachGlobalObjectFromFrame() |
| { |
| // If the property is getting this callback it must have been created with a LocalFrame/LocalDOMWindow and it should still have them. |
| ASSERT(m_frame); |
| ASSERT(m_associatedDOMWindow); |
| } |
| |
| } |