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Bug 389663: CSS test crashes Firefox. r+sr=dbaron/bz

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This commit is contained in:
sharparrow1@yahoo.com 2007-07-26 13:20:30 -07:00
parent 2ccd5c8afc
commit 9ad46c47f5
1 changed files with 27 additions and 21 deletions
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48
content/html/document/src/nsImageDocument.cpp
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@ -600,33 +600,39 @@ nsImageDocument::CreateSyntheticDocument()
nsresult
nsImageDocument::CheckOverflowing(PRBool changeState)
{
nsIPresShell *shell = GetPrimaryShell();
if (!shell) {
return NS_OK;
}
/* Create a scope so that the style context gets destroyed before we might
* call ClearStyleDataAndReflow. Also, holding onto pointers to the
* presentatation through style resolution is potentially dangerous.
*/
{
nsIPresShell *shell = GetPrimaryShell();
if (!shell) {
return NS_OK;
}
nsPresContext *context = shell->GetPresContext();
nsRect visibleArea = context->GetVisibleArea();
nsPresContext *context = shell->GetPresContext();
nsRect visibleArea = context->GetVisibleArea();
nsCOMPtr<nsIContent> content = do_QueryInterface(mBodyContent);
if (!content) {
NS_WARNING("no body on image document!");
return NS_ERROR_FAILURE;
}
nsCOMPtr<nsIContent> content = do_QueryInterface(mBodyContent);
if (!content) {
NS_WARNING("no body on image document!");
return NS_ERROR_FAILURE;
}
nsRefPtr<nsStyleContext> styleContext =
context->StyleSet()->ResolveStyleFor(content, nsnull);
nsRefPtr<nsStyleContext> styleContext =
context->StyleSet()->ResolveStyleFor(content, nsnull);
nsMargin m;
if (styleContext->GetStyleMargin()->GetMargin(m))
visibleArea.Deflate(m);
m = styleContext->GetStyleBorder()->GetBorder();
visibleArea.Deflate(m);
if (styleContext->GetStylePadding()->GetPadding(m))
nsMargin m;
if (styleContext->GetStyleMargin()->GetMargin(m))
visibleArea.Deflate(m);
m = styleContext->GetStyleBorder()->GetBorder();
visibleArea.Deflate(m);
if (styleContext->GetStylePadding()->GetPadding(m))
visibleArea.Deflate(m);
mVisibleWidth = nsPresContext::AppUnitsToIntCSSPixels(visibleArea.width);
mVisibleHeight = nsPresContext::AppUnitsToIntCSSPixels(visibleArea.height);
mVisibleWidth = nsPresContext::AppUnitsToIntCSSPixels(visibleArea.width);
mVisibleHeight = nsPresContext::AppUnitsToIntCSSPixels(visibleArea.height);
}
PRBool imageWasOverflowing = mImageIsOverflowing;
mImageIsOverflowing =