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Bug 414112. CSS 2.1 300px fallback width doesn't play nice with percentages. r=bzbarsky@mit.edu, sr=tor@acm.org, b1.9=mtschrep@gmail.com

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jwatt@jwatt.org 2008-02-08 13:50:24 -08:00
parent 5477cbd6de
commit b4a426f21e
1 changed files with 4 additions and 3 deletions
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7
layout/svg/base/src/nsSVGOuterSVGFrame.cpp
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@ -228,9 +228,10 @@ nsSVGOuterSVGFrame::GetPrefWidth(nsIRenderingContext *aRenderingContext)
nsSVGLength2 &width = svg->mLengthAttributes[nsSVGSVGElement::WIDTH];
if (width.IsPercentage()) {
// If we're being called then our containing block's width depends on our
// width - fall back to 300px as required by CSS 2.1 section 10.3.2:
result = nsPresContext::CSSPixelsToAppUnits(300);
// It looks like our containing block's width may depend on our width. In
// that case our behavior is undefined according to CSS 2.1 section 10.3.2,
// so return zero.
result = nscoord(0);
} else {
result = nsPresContext::CSSPixelsToAppUnits(width.GetAnimValue(svg));
if (result < 0) {