зеркало из https://github.com/mozilla/gecko-dev.git
Added NotifyDestroyingFrame() function to nsIPresShell
This commit is contained in:
troy%netscape.com
Родитель
d7927650e6
Коммит
f9d48b07a9
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@ -182,26 +182,29 @@ public:
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nsIFrame* aPlaceholderFrame) = 0;
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NS_IMETHOD ClearPlaceholderFrameMap() = 0;
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/**
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* Reflow commands
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*/
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NS_IMETHOD AppendReflowCommand(nsIReflowCommand* aReflowCommand) = 0;
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NS_IMETHOD CancelReflowCommand(nsIFrame* aTargetFrame) = 0;
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NS_IMETHOD ProcessReflowCommands() = 0;
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NS_IMETHOD ClearFrameRefs(nsIFrame* aFrame) = 0;
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/**
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* Given a frame, cough up a rendering context suitable for use with
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* Given a frame, create a rendering context suitable for use with
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* the frame.
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*/
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NS_IMETHOD CreateRenderingContext(nsIFrame *aFrame,
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nsIRenderingContext** aContext) = 0;
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// Notification that we were unable to render a replaced element.
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// Called when the replaced element can not be rendered, and we should
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// instead render the element's contents.
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// The content object associated with aFrame should either be a IMG
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// element, an OBJECT element, or an APPLET element
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/**
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* Notification that we were unable to render a replaced element.
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* Called when the replaced element can not be rendered, and we should
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* instead render the element's contents.
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* The content object associated with aFrame should either be a IMG
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* element, an OBJECT element, or an APPLET element
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*/
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NS_IMETHOD CantRenderReplacedElement(nsIPresContext* aPresContext,
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nsIFrame* aFrame) = 0;
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@ -263,6 +266,13 @@ public:
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PRInt32 aHOffsetPercent,
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PRUint32 aHFlags) const = 0;
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/**
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* Notification sent by a frame informing the pres shell that it is about to
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* be destroyed.
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* This allows any outstanding references to the frame to be cleaned up
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*/
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NS_IMETHOD NotifyDestroyingFrame(nsIFrame* aFrame) = 0;
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/**
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* Notify the Clipboard that we have something to copy.
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*/
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@ -182,26 +182,29 @@ public:
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nsIFrame* aPlaceholderFrame) = 0;
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NS_IMETHOD ClearPlaceholderFrameMap() = 0;
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/**
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* Reflow commands
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*/
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NS_IMETHOD AppendReflowCommand(nsIReflowCommand* aReflowCommand) = 0;
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NS_IMETHOD CancelReflowCommand(nsIFrame* aTargetFrame) = 0;
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NS_IMETHOD ProcessReflowCommands() = 0;
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NS_IMETHOD ClearFrameRefs(nsIFrame* aFrame) = 0;
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/**
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* Given a frame, cough up a rendering context suitable for use with
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* Given a frame, create a rendering context suitable for use with
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* the frame.
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*/
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NS_IMETHOD CreateRenderingContext(nsIFrame *aFrame,
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nsIRenderingContext** aContext) = 0;
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// Notification that we were unable to render a replaced element.
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// Called when the replaced element can not be rendered, and we should
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// instead render the element's contents.
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// The content object associated with aFrame should either be a IMG
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// element, an OBJECT element, or an APPLET element
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/**
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* Notification that we were unable to render a replaced element.
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* Called when the replaced element can not be rendered, and we should
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* instead render the element's contents.
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* The content object associated with aFrame should either be a IMG
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* element, an OBJECT element, or an APPLET element
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*/
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NS_IMETHOD CantRenderReplacedElement(nsIPresContext* aPresContext,
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nsIFrame* aFrame) = 0;
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@ -263,6 +266,13 @@ public:
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PRInt32 aHOffsetPercent,
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PRUint32 aHFlags) const = 0;
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/**
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* Notification sent by a frame informing the pres shell that it is about to
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* be destroyed.
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* This allows any outstanding references to the frame to be cleaned up
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*/
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NS_IMETHOD NotifyDestroyingFrame(nsIFrame* aFrame) = 0;
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/**
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* Notify the Clipboard that we have something to copy.
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*/
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@ -377,11 +377,11 @@ nsFrame::DeleteFrame(nsIPresContext& aPresContext)
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nsCOMPtr<nsIPresShell> shell;
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aPresContext.GetShell(getter_AddRefs(shell));
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// XXX Rather than always do this it would be better if it was part of
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// XXX Rather than always doing this it would be better if it was part of
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// a frame observer mechanism and the pres shell could register as an
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// observer of the frame while the reflow command is pending...
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if (shell) {
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shell->CancelReflowCommand(this);
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shell->NotifyDestroyingFrame(this);
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}
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if ((mState & NS_FRAME_EXTERNAL_REFERENCE) ||
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@ -377,11 +377,11 @@ nsFrame::DeleteFrame(nsIPresContext& aPresContext)
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nsCOMPtr<nsIPresShell> shell;
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aPresContext.GetShell(getter_AddRefs(shell));
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// XXX Rather than always do this it would be better if it was part of
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// XXX Rather than always doing this it would be better if it was part of
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// a frame observer mechanism and the pres shell could register as an
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// observer of the frame while the reflow command is pending...
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if (shell) {
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shell->CancelReflowCommand(this);
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shell->NotifyDestroyingFrame(this);
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}
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if ((mState & NS_FRAME_EXTERNAL_REFERENCE) ||
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