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57 lines
1.9 KiB
HTML
57 lines
1.9 KiB
HTML
<!DOCTYPE HTML>
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<meta charset=utf-8>
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<title>Element Timing: observe element with multiple background images</title>
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<body>
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<style>
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body {
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margin: 0;
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}
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#target {
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width: 200px;
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height: 200px;
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background-image: url('resources/circle.svg'), url('resources/square100.png');
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}
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</style>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="resources/element-timing-helpers.js"></script>
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<script>
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let beforeRender = performance.now();
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async_test(function (t) {
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let numObservedElements = 0;
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let observedCircle = false;
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let observedSquare = false;
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const index = window.location.href.lastIndexOf('/');
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const pathname = window.location.href.substring(0, index) + '/resources/';
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const observer = new PerformanceObserver(
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t.step_func(entryList => {
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entryList.getEntries().forEach(entry => {
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numObservedElements++;
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if (entry.name.endsWith('square100.png')) {
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observedSquare = true;
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checkElement(entry, pathname + 'square100.png', 'multi', 'target', beforeRender);
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checkRect(entry, [0, 200, 0, 200]);
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checkNaturalSize(entry, 100, 100);
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}
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else if (entry.name.endsWith('circle.svg')) {
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observedCircle = true;
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checkElement(entry, pathname + 'circle.svg', 'multi', 'target', beforeRender);
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checkRect(entry, [0, 200, 0, 200]);
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checkNaturalSize(entry, 200, 200);
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}
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else {
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assert_unreached("Should not have observed an entry with different name!");
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}
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if (numObservedElements === 2) {
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assert_true(observedCircle);
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assert_true(observedSquare);
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t.done();
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}
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});
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})
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);
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observer.observe({entryTypes: ['element']});
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}, 'Element with two background images receives both.');
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</script>
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<div id='target' elementtiming='multi'></div>
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</body>
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