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Bug 951320 - Use the composition bounds in CSS pixels when expanding the scrollable rect. r=k17e

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This commit is contained in:
Kartikaya Gupta 2013-12-18 09:13:52 -05:00
parent 0710cfc460
commit b1616aec68
1 changed files with 7 additions and 6 deletions
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13
gfx/layers/FrameMetrics.h
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@ -124,16 +124,17 @@ public:
CSSRect GetExpandedScrollableRect() const
{
CSSRect scrollableRect = mScrollableRect;
if (scrollableRect.width < mCompositionBounds.width) {
CSSRect compBounds = CalculateCompositedRectInCssPixels();
if (scrollableRect.width < compBounds.width) {
scrollableRect.x = std::max(0.f,
scrollableRect.x - (mCompositionBounds.width - scrollableRect.width));
scrollableRect.width = mCompositionBounds.width;
scrollableRect.x - (compBounds.width - scrollableRect.width));
scrollableRect.width = compBounds.width;
}
if (scrollableRect.height < mCompositionBounds.height) {
if (scrollableRect.height < compBounds.height) {
scrollableRect.y = std::max(0.f,
scrollableRect.y - (mCompositionBounds.height - scrollableRect.height));
scrollableRect.height = mCompositionBounds.height;
scrollableRect.y - (compBounds.height - scrollableRect.height));
scrollableRect.height = compBounds.height;
}
return scrollableRect;