зеркало из https://github.com/mozilla/gecko-dev.git
Bug 940842 - 3/3 - Add a mochitest covering repaint heuristics with will-change - r=mattwoodrow
This commit is contained in:
Benoit Girard ext:(%20and%20Benoit%20Jacob%20%3Cbjacob%40mozilla.com%3E)
Родитель
6e831dc5e6
Коммит
7d19d91f93
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@ -48,3 +48,4 @@ support-files=scroll_selection_into_view_window.html
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[test_transformed_scrolling_repaints.html]
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[test_transformed_scrolling_repaints.html]
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[test_transformed_scrolling_repaints_2.html]
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[test_transformed_scrolling_repaints_2.html]
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[test_transformed_scrolling_repaints_3.html]
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[test_transformed_scrolling_repaints_3.html]
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[test_will_change.html]
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@ -0,0 +1,108 @@
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<!DOCTYPE HTML>
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<html>
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<head>
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<title>Tests for MozAfterPaint</title>
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<script type="application/javascript" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
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<script type="text/javascript" src="chrome://mochikit/content/tests/SimpleTest/paint_listener.js"></script>
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<!-- This CSS must not be parsed before we get a change to set layout.css.will-change.enabled=true -->
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<script type="css_but_do_not_parse" id="csscode">
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#checkOpacityRepaint {
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will-change: opacity;
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}
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#checkTransformRepaint {
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will-change: transform;
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}
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div {
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width: 100px;
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height: 100px;
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background: radial-gradient(ellipse at center, #87e0fd 0%,#53cbf1 40%,#05abe0 100%);
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}
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</script>
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</head>
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<body>
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<div id="checkRepaint">
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Check repaint without will-change
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</div>
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<div id="checkOpacityRepaint">
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Check repaint with will-change
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</div>
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<div id="checkTransformRepaint">
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Check repaint with will-change
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</div>
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</body>
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<script>
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var utils = window.QueryInterface(Components.interfaces.nsIInterfaceRequestor).
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getInterface(Components.interfaces.nsIDOMWindowUtils);
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var initialPaintCount = 0;
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function test_checkRepaint(next) {
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var element = document.getElementById("checkRepaint");
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waitForAllPaintsFlushed(function () {
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utils.checkAndClearPaintedState(element);
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element.style.opacity = "0.5";
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waitForAllPaintsFlushed(function () {
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var painted = utils.checkAndClearPaintedState(element);
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// *** We check that this repaints because the test is relying
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// on this property. If this is broken then this test wont
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// be reliable check for will-change.
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is(painted, true, "element should have been painted");
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next();
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});
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});
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}
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function test_checkOpacityRepaint(next) {
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var element = document.getElementById("checkOpacityRepaint");
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waitForAllPaintsFlushed(function () {
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utils.checkAndClearPaintedState(element);
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element.style.opacity = "0.5";
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waitForAllPaintsFlushed(function () {
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var painted = utils.checkAndClearPaintedState(element);
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// BasicLayers' heuristics are so that even with will-change:opacity,
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// we can still have repaints.
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if (utils.layerManagerType != "Basic") {
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is(painted, false, "will-change checkOpacityRepaint element should not have been painted");
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}
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next();
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});
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});
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}
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function test_checkTransformRepaint(next) {
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var element = document.getElementById("checkTransformRepaint");
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waitForAllPaintsFlushed(function () {
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utils.checkAndClearPaintedState(element);
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element.style.transform = "translateY(-5px)";
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waitForAllPaintsFlushed(function () {
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var painted = utils.checkAndClearPaintedState(element);
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// BasicLayers' heuristics are so that even with will-change:transform,
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// we can still have repaints.
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if (utils.layerManagerType != "Basic") {
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is(painted, false, "will-change checkTransformRepaint element should not have been painted");
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}
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next();
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});
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});
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}
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function runTest() {
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var csscode = document.getElementById("csscode").firstChild.textContent;
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var style = document.createElement("style");
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style.textContent = csscode;
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document.body.appendChild(style);
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test_checkRepaint(function(){
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test_checkOpacityRepaint(function(){
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test_checkTransformRepaint(function(){
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SimpleTest.finish();
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});
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});
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});
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}
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SimpleTest.waitForExplicitFinish();
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SpecialPowers.pushPrefEnv({ "set": [["layout.css.will-change.enabled", true]] }, runTest);
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</script>
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</html>
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