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28 #include "DOMWindowProperty.h"
30 #include "DOMWindow.h"
35 DOMWindowProperty::DOMWindowProperty(Frame* frame)
37 , m_associatedDOMWindow(0)
39 // FIXME: For now it *is* acceptable for a DOMWindowProperty to be created with a null frame.
40 // See fast/dom/navigator-detached-no-crash.html for the recipe.
41 // We should fix that. <rdar://problem/11567132>
43 m_associatedDOMWindow = m_frame->domWindow();
44 m_associatedDOMWindow->registerProperty(this);
48 DOMWindowProperty::~DOMWindowProperty()
50 if (m_associatedDOMWindow)
51 m_associatedDOMWindow->unregisterProperty(this);
53 m_associatedDOMWindow = 0;
57 void DOMWindowProperty::disconnectFrameForPageCache()
59 // If this property is being disconnected from its Frame to enter the PageCache, it must have
60 // been created with a Frame in the first place.
62 ASSERT(m_associatedDOMWindow);
67 void DOMWindowProperty::reconnectFrameFromPageCache(Frame* frame)
69 // If this property is being reconnected to its Frame to enter the PageCache, it must have
70 // been disconnected from its Frame in the first place and it should still have an associated DOMWindow.
73 ASSERT(frame->domWindow() == m_associatedDOMWindow);
78 void DOMWindowProperty::willDestroyGlobalObjectInCachedFrame()
80 // If the property has been disconnected from its Frame for the page cache, then it must have originally had a Frame
81 // and therefore should still have an associated DOMWindow.
83 ASSERT(m_associatedDOMWindow);
85 // DOMWindowProperty lifetime isn't tied directly to the DOMWindow itself so it is important that it unregister
86 // itself from any DOMWindow it is associated with if that DOMWindow is going away.
87 if (m_associatedDOMWindow)
88 m_associatedDOMWindow->unregisterProperty(this);
89 m_associatedDOMWindow = 0;
93 void DOMWindowProperty::willDestroyGlobalObjectInFrame()
95 // If the property is getting this callback it must have been created with a Frame/DOMWindow and it should still have them.
97 ASSERT(m_associatedDOMWindow);
99 // DOMWindowProperty lifetime isn't tied directly to the DOMWindow itself so it is important that it unregister
100 // itself from any DOMWindow it is associated with if that DOMWindow is going away.
101 if (m_associatedDOMWindow)
102 m_associatedDOMWindow->unregisterProperty(this);
103 m_associatedDOMWindow = 0;
107 void DOMWindowProperty::willDetachGlobalObjectFromFrame()
109 // If the property is getting this callback it must have been created with a Frame/DOMWindow and it should still have them.
111 ASSERT(m_associatedDOMWindow);