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Change to how overflow is handled for absolutely positioned elements.

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We no longer use nsIAraeFrame and now it's folded into the overflow
area in the reflow metrics


git-svn-id: svn://10.0.0.236/trunk@55424 18797224-902f-48f8-a5cc-f745e15eee43
This commit is contained in:
troy%netscape.com
1999-12-06 15:49:53 +00:00
parent a8d6ce613a
commit 52084caad8
42 changed files with 685 additions and 623 deletions
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22
mozilla/layout/generic/nsAbsoluteContainingBlock.h
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@@ -71,31 +71,35 @@ public:
// Called by the delegating frame after it has done its reflow first. This
// function will reflow any absolutely positioned child frames that need to
// be reflowed, e.g., because the absolutely positioned child frame has
// 'auto' for an offset, or a percentage based width or height
// 'auto' for an offset, or a percentage based width or height.
// Returns (in the local coordinate space) the bounding rect of the absolutely
// positioned child elements taking into account their overflow area (if it
// is visible)
nsresult Reflow(nsIFrame* aDelegatingFrame,
nsIPresContext* aPresContext,
const nsHTMLReflowState& aReflowState,
nscoord aContainingBlockWidth,
nscoord aContainingBlockHeight);
nscoord aContainingBlockHeight,
nsRect& aChildBounds);
// Called only for a reflow reason of eReflowReason_Incremental. The
// aWasHandled return value indicates whether the reflow command was
// handled (i.e., the reflow command involved an absolutely positioned
// child element), or whether the caller should handle it
// child element), or whether the caller should handle it.
// Returns (in the local coordinate space) the bounding rect of the absolutely
// positioned child elements taking into account their overflow area (if it
// is visible). This is only set if the reflow command was handled
nsresult IncrementalReflow(nsIFrame* aDelegatingFrame,
nsIPresContext* aPresContext,
const nsHTMLReflowState& aReflowState,
nscoord aContainingBlockWidth,
nscoord aContainingBlockHeight,
PRBool& aWasHandled);
PRBool& aWasHandled,
nsRect& aChildBounds);
void DestroyFrames(nsIFrame* aDelegatingFrame,
nsIPresContext* aPresContext);
nsresult GetPositionedInfo(const nsIFrame* aDelegatingFrame,
nscoord& aXMost,
nscoord& aYMost) const;
protected:
nsresult ReflowAbsoluteFrame(nsIFrame* aDelegatingFrame,
nsIPresContext* aPresContext,
@@ -106,6 +110,8 @@ protected:
PRBool aInitialReflow,
nsReflowStatus& aStatus);
void CalculateChildBounds(nsIPresContext* aPresContext, nsRect& aChildBounds);
protected:
nsFrameList mAbsoluteFrames; // additional named child list
};