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6d646878f1
This avoids problems with FrameLayerBuilder making the visible region bigger than we expected, invalidating CONTENT_OPAQUE flags set on the layer. In particular, we had been using TransformBounds to compute the new visible region, and for non-axis-aligned transforms this gives us a visible region which contains areas not actually painted by the layer contents.
45 lines
1.1 KiB
HTML
45 lines
1.1 KiB
HTML
<!DOCTYPE HTML>
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<html class="reftest-wait">
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<head>
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<style>
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#d {
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background: red;
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position: absolute;
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top: 8px;
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left: 8px;
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height: 200px;
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width: 800px;
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transform: rotate(40deg);
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-moz-transform: rotate(40deg);
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}
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#d2 {
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background: white;
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position: absolute;
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top: 6px;
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left: 6px;
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height: 204px;
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width: 804px;
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transform: rotate(45deg);
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-moz-transform: rotate(45deg);
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}
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</style>
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</head>
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<body>
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<script>
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function doTest() {
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// The first rotation here makes the transform active. The second rotation
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// sets it back where it belongs.
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var d = document.getElementById("d");
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d.style.transform = d.style.MozTransform = 'rotate(45deg)';
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document.documentElement.removeAttribute('class');
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}
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window.addEventListener("MozReftestInvalidate", doTest, false);
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</script>
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<div id="d">test</div>
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<!-- d2 covers up d completely so that we don't get a reftest failure due to a difference
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between the rendering of an 'active transform' (transformed via layers) vs an inactive
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transform (transformed via D2D or cairo) -->
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<div id="d2">test</div>
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</body>
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</html>
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