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Bug 532721: less conservative detection of gradients with size dependence. r=dbaron
This commit is contained in:
Zack Weinberg
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a0cc483d31
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09a37c1c23
44
layout/reftests/css-gradients/height-dependence-3-ref.html
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layout/reftests/css-gradients/height-dependence-3-ref.html
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<!doctype html>
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<html><head>
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<style>
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html {
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background-image: -moz-linear-gradient(black, white 20%);
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background-repeat: repeat-x;
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-moz-background-size: 1px 80%;
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}
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body {
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font-size: 1em;
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padding: 2em;
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margin: 50px auto;
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width: 14em;
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border: 1px solid black;
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background-color: white;
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}
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</style>
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</head><body>
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</body>
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</html>
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54
layout/reftests/css-gradients/height-dependence-3.html
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layout/reftests/css-gradients/height-dependence-3.html
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<!doctype html>
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<html class="reftest-wait"><head>
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<style>
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html {
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background-image: -moz-linear-gradient(black, white 20%);
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background-repeat: repeat-x;
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-moz-background-size: 1px 80%;
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}
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body {
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font-size: 1em;
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padding: 2em;
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margin: 50px auto;
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width: 28em;
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border: 1px solid black;
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background-color: white;
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}
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</style>
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<script>
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window.onload = function() {
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setTimeout(function() {
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document.body.style.width = "14em";
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setTimeout(function() {
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document.documentElement.removeAttribute("class");
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}, 100);
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}, 100);
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}
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</script>
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</head><body>
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</body>
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</html>
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@ -87,3 +87,4 @@ fails-if(MOZ_WIDGET_TOOLKIT=="cocoa") == aja-linear-6a.html aja-linear-6-ref.htm
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fails == aja-linear-6b.html aja-linear-6-ref.html # bug 522607
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== height-dependence-1.html height-dependence-1-ref.html
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== height-dependence-2.html height-dependence-2-ref.html
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== height-dependence-3.html height-dependence-3-ref.html
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@ -413,10 +413,19 @@ struct nsStyleBackground {
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};
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PRUint8 mWidthType, mHeightType;
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// True if the effective image size described by this depends on the size
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// of the corresponding frame.
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PRBool DependsOnFrameSize() const {
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return mWidthType <= ePercentage || mHeightType <= ePercentage;
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// True if the effective image size described by this depends on
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// the size of the corresponding frame. Gradients depend on the
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// frame size when their dimensions are 'auto', images don't; both
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// types depend on the frame size when their dimensions are
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// 'contain', 'cover', or a percentage.
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PRBool DependsOnFrameSize(nsStyleImageType aType) const {
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if (aType == eStyleImageType_Image) {
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return mWidthType <= ePercentage || mHeightType <= ePercentage;
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} else if (aType == eStyleImageType_Gradient) {
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return mWidthType <= eAuto || mHeightType <= eAuto;
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} else {
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NS_NOTREACHED("unrecognized image type");
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}
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}
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// Initialize nothing
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@ -456,9 +465,8 @@ struct nsStyleBackground {
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// trying to identify gradients that don't depend on the frame size.
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PRBool RenderingMightDependOnFrameSize() const {
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return (!mImage.IsEmpty() &&
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(mImage.GetType() == eStyleImageType_Gradient ||
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mPosition.DependsOnFrameSize() ||
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mSize.DependsOnFrameSize()));
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(mPosition.DependsOnFrameSize() ||
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mSize.DependsOnFrameSize(mImage.GetType())));
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}
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// An equality operator that compares the images using URL-equality
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