94 lines
2.9 KiB
HTML
94 lines
2.9 KiB
HTML
<!doctype html>
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<html>
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<!--
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https://bugzilla.mozilla.org/show_bug.cgi?id=1167519
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-->
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<head>
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<meta charset=utf-8>
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<script type="application/javascript"
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src="/tests/SimpleTest/paint_listener.js"></script>
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<style>
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#target {
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height: 100px;
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width: 100px;
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background: green;
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transition: transform 100s linear;
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}
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</style>
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</head>
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<body>
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<div id="target"></div>
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<script>
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'use strict';
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var ok = opener.ok.bind(opener);
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var isnot = opener.isnot.bind(opener);
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function finish() {
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var o = opener;
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self.close();
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o.SimpleTest.finish();
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}
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var OMTAPrefKey = "layers.offmainthreadcomposition.async-animations";
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var omtaEnabled = SpecialPowers.DOMWindowUtils.layerManagerRemote &&
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opener.SpecialPowers.getBoolPref(OMTAPrefKey);
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window.addEventListener("load", function() {
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if (!omtaEnabled) {
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ok(true, "Skipping the test since OMTA is disabled");
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finish();
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return;
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}
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var div = document.getElementById("target");
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// Start first transition
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div.style.transform = "translateX(300px)";
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getComputedStyle(div);
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// Wait for a paint to ensure that the first transition has started.
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waitForAllPaints(function() {
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var previousPropertyValue;
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var previousKeyframeValue;
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var anim;
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requestAnimationFrame(function() {
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// Start second transition
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div.style.transform = "translateX(0px)";
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getComputedStyle(div).transform;
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anim = div.getAnimations()[0];
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var properties = SpecialPowers.wrap(anim.effect).getProperties();
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previousPropertyValue = properties[0].values[0].value;
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previousKeyframeValue = anim.effect.getKeyframes()[0].transform;
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});
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requestAnimationFrame(function() {
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// Tie up main thread for 300ms. In the meantime, the first transition
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// will continue running on the compositor. If we don't update the start
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// point of the second transition, it will appear to jump when it starts.
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var startTime = performance.now();
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while (performance.now() - startTime < 300);
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// Ensure that our paint process has been done.
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// Note that requestAnimationFrame is not suitable here since on Android
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// there is a case where the paint process has not completed even when the
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// requestAnimationFrame callback is run (and it is during the paint
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// process that we update the transition start point).
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waitForAllPaints(function() {
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var properties = SpecialPowers.wrap(anim.effect).getProperties();
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var currentPropertyValue = properties[0].values[0].value;
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isnot(currentPropertyValue, previousPropertyValue,
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"From value of transition is updated since the moment when " +
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"it was generated");
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isnot(anim.effect.getKeyframes()[0].transform, previousKeyframeValue,
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"Keyframe value of transition is updated since the moment when " +
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"it was generated");
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finish();
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});
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});
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});
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});
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</script>
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</body>
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</html>
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