53 lines
1.6 KiB
HTML
53 lines
1.6 KiB
HTML
<!DOCTYPE HTML>
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<html>
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<head>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width; initial-scale=1.0">
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<title>Tests that layout viewport is not larger than visual viewport on fullscreen</title>
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<script type="application/javascript" src="apz_test_utils.js"></script>
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<script src="/tests/SimpleTest/paint_listener.js"></script>
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<style>
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body {
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margin: 0;
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padding: 0;
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overflow-x: hidden;
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}
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</style>
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</head>
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<body>
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<div style="background: blue; width: 100%; height: 100%;"></div>
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<div style="background: red; width: 200%; height: 100px;">overflowed element</div>
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<div id="target" style="background: green; width: 100px; height: 100px;"></div>
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<script type="application/javascript">
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const utils = SpecialPowers.getDOMWindowUtils(window);
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function waitForFullscreenChange() {
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return new Promise(resolve => {
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document.addEventListener("fullscreenchange", resolve);
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});
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}
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async function test() {
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target.requestFullscreen();
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await waitForFullscreenChange();
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is(document.fullscreenElement, target,
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"The target element should have been fullscreen-ed");
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// Try to move rightward, but it should NOT happen.
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utils.scrollToVisual(200, 0, utils.UPDATE_TYPE_MAIN_THREAD,
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utils.SCROLL_MODE_INSTANT);
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await waitUntilApzStable();
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is(visualViewport.offsetLeft, 0,
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"The visual viewport offset should never be moved");
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document.exitFullscreen();
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}
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waitUntilApzStable().then(test).then(subtestDone, subtestFailed);
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</script>
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</body>
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</html>
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