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Bug 1037643 - Part 1.99 - Add nsIDocument::IsCurrentActiveDocument. r=bz

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This commit is contained in:
John Schoenick 2014-10-14 13:42:34 -07:00
parent 5cd5a86cf2
commit 71a1cc54f7
1 changed files with 15 additions and 3 deletions
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18
content/base/public/nsIDocument.h
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@ -1736,14 +1736,26 @@ public:
bool IsVisibleConsideringAncestors() const;
/**
* Return true when this document is active, i.e., the active document
* Return true when this document is active, i.e., an active document
* in a content viewer. Note that this will return true for bfcached
* documents, so this does NOT match the "active document" concept in
* the WHATWG spec. That would correspond to GetInnerWindow() &&
* GetInnerWindow()->IsCurrentInnerWindow().
* the WHATWG spec - see IsCurrentActiveDocument.
*/
bool IsActive() const { return mDocumentContainer && !mRemovedFromDocShell; }
/**
* Return true if this is the current active document for its
* docshell. Note that a docshell may have multiple active documents
* due to the bfcache -- this should be used when you need to
* differentiate the *current* active document from any active
* documents.
*/
bool IsCurrentActiveDocument() const
{
nsPIDOMWindow *inner = GetInnerWindow();
return inner && inner->IsCurrentInnerWindow() && inner->GetDoc() == this;
}
/**
* Register/Unregister the ActivityObserver into mActivityObservers to listen
* the document's activity changes such as OnPageHide, visibility, activity.