74 lines
2.1 KiB
HTML
74 lines
2.1 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<style>
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body {
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height: 5000px;
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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-color: silver;
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margin: 20px;
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}
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</style>
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<script src="../../../resources/js-test-pre.js"></script>
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<script src="../../../resources/ui-helper.js"></script>
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<script>
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var jsTestIsAsync = true;
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let wheelEventCount = 0;
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let windowScrollEventCount = 0;
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let firstWasCancelable;
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let firstWasCanceled;
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let secondWasCancelable;
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let secondWasCanceled;
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async function testScroll()
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{
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await UIHelper.mouseWheelScrollAt(100, 100);
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shouldBe('windowScrollEventCount', '0');
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shouldBeTrue('firstWasCancelable');
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shouldBeTrue('firstWasCanceled');
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shouldBeTrue('secondWasCancelable');
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shouldBeTrue('secondWasCanceled');
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finishJSTest();
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}
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window.addEventListener('load', () => {
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description('Tests preventDefault on the first event results in the rest of the events being cancelable')
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let target = document.getElementById('target');
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target.addEventListener('wheel', (event) => {
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if (!wheelEventCount) {
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firstWasCancelable = event.cancelable;
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event.preventDefault();
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firstWasCanceled = event.defaultPrevented;
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} else if (wheelEventCount == 1) {
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secondWasCancelable = event.cancelable;
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event.preventDefault();
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secondWasCanceled = event.defaultPrevented;
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}
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++wheelEventCount;
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});
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window.addEventListener('scroll', () => {
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++windowScrollEventCount;
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}, false);
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setTimeout(testScroll, 0);
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}, false);
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</script>
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</head>
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<body>
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<div id="target"></div>
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<div id="console"></div>
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<script src="../../../resources/js-test-post.js"></script>
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</body>
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</html>
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