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Bug 899367 - Have nsGlobalWindow go through nsJSContext to access the outer. r=mccr8

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This commit is contained in:
Bobby Holley 2013-08-27 15:21:39 -07:00
parent 5813ab4158
commit 5fe7a003d5
4 changed files with 28 additions and 10 deletions
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11
dom/base/nsGlobalWindow.cpp
View File

@ -2048,8 +2048,9 @@ nsGlobalWindow::SetOuterObject(JSContext* aCx, JS::Handle<JSObject*> aOuterObjec
{
JSAutoCompartment ac(aCx, aOuterObject);
// Indicate the default compartment object associated with this cx.
js::SetDefaultObjectForContext(aCx, aOuterObject);
// Inform the nsJSContext, which is the canonical holder of the outer.
MOZ_ASSERT(IsOuterWindow());
mContext->SetWindowProxy(aOuterObject);
// Set up the prototype for the outer object.
JS::Rooted<JSObject*> inner(aCx, JS_GetParent(aOuterObject));
@ -2445,11 +2446,7 @@ nsGlobalWindow::SetNewDocument(nsIDocument* aDocument,
newInnerWindow->FastGetGlobalJSObject());
#endif
// Now that we're connecting the outer global to the inner one,
// we must have transplanted it. The JS engine tries to maintain
// the global object's compartment as its default compartment,
// so update that now since it might have changed.
js::SetDefaultObjectForContext(cx, mJSObject);
MOZ_ASSERT(mContext->GetWindowProxy() == mJSObject);
#ifdef DEBUG
JS::Rooted<JSObject*> rootedJSObject(cx, mJSObject);
JS::Rooted<JSObject*> proto1(cx), proto2(cx);

10
dom/base/nsIScriptContext.h
View File

@ -27,8 +27,8 @@ class nsIDOMWindow;
class nsIURI;
#define NS_ISCRIPTCONTEXT_IID \
{ 0x1d931a17, 0x453a, 0x47fb, \
{ 0x94, 0x66, 0x2d, 0x3e, 0xd1, 0xef, 0x7a, 0xc5 } }
{ 0x03c0874e, 0xcb49, 0x41c8, \
{ 0xa3, 0x0b, 0xef, 0x3e, 0xc1, 0x88, 0xb1, 0x1f } }
/* This MUST match JSVERSION_DEFAULT. This version stuff if we don't
know what language we have is a little silly... */
@ -165,6 +165,12 @@ public:
* Tell the context we're done reinitializing it.
*/
virtual void DidInitializeContext() = 0;
/**
* Access the Window Proxy. The setter should only be called by nsGlobalWindow.
*/
virtual void SetWindowProxy(JS::Handle<JSObject*> aWindowProxy) = 0;
virtual JSObject* GetWindowProxy() = 0;
};
NS_DEFINE_STATIC_IID_ACCESSOR(nsIScriptContext, NS_ISCRIPTCONTEXT_IID)

14
dom/base/nsJSEnvironment.cpp
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@ -1137,7 +1137,7 @@ nsJSContext::GetGlobalObject()
JSObject*
nsJSContext::GetNativeGlobal()
{
return js::DefaultObjectForContextOrNull(mContext);
return GetWindowProxy();
}
JSContext*
@ -2581,6 +2581,18 @@ nsJSContext::ReportPendingException()
}
}
void
nsJSContext::SetWindowProxy(JS::Handle<JSObject*> aWindowProxy)
{
js::SetDefaultObjectForContext(mContext, aWindowProxy);
}
JSObject*
nsJSContext::GetWindowProxy()
{
return xpc_UnmarkGrayObject(js::DefaultObjectForContextOrNull(mContext));
}
void
nsJSContext::LikelyShortLivingObjectCreated()
{

3
dom/base/nsJSEnvironment.h
View File

@ -80,6 +80,9 @@ public:
virtual void WillInitializeContext() MOZ_OVERRIDE;
virtual void DidInitializeContext() MOZ_OVERRIDE;
virtual void SetWindowProxy(JS::Handle<JSObject*> aWindowProxy) MOZ_OVERRIDE;
virtual JSObject* GetWindowProxy() MOZ_OVERRIDE;
static void LoadStart();
static void LoadEnd();