52 lines
2 KiB
HTML
52 lines
2 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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<title>Video element visibility in iframe</title>
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</head>
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<body>
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<div style="width: 100%; height: calc(100vh - 100px);"></div>
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<div style="height: 100px; overflow: scroll;">
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<!-- 2x height of the scroll port to make this test pass with/without Fission -->
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<div style="width: 100%; height: 200px;"></div>
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<iframe id="iframe" style="height: 100px; border: none;"></iframe>
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</div>
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<script>
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const add_task = window.opener.add_task;
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const SimpleTest = window.opener.SimpleTest;
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const original_finish = window.opener.SimpleTest.finish;
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// add_task calls SimpleTest.finish() when it finished, we want to close this
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// window before SimpleTest.finish() gets called.
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SimpleTest.finish = function finish() {
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self.close();
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original_finish();
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}
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add_task(async () => {
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const iframe = document.getElementById("iframe");
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await new Promise(resolve => {
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iframe.addEventListener("load", () => { resolve(); }, { once: true });
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iframe.src = "http://example.org/tests/layout/generic/test/frame_visibility_in_iframe_child.html";
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});
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await SpecialPowers.spawn(iframe, [], async () => {
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// With layout.visibility.min-recompute-interval-ms=0 value, flushing layout
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// and waiting two frames would be sufficient to make sure at least one
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// RebuildApproximateFrameVisibility call was done. This would avoid the
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// situation we consider the video element is invisible without doing any
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// frame visibility tracking stuff.
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content.document.documentElement.getBoundingClientRect();
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await new Promise(resolve => content.window.requestAnimationFrame(resolve));
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await new Promise(resolve => content.window.requestAnimationFrame(resolve));
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});
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await SpecialPowers.spawn(iframe, [], async () => {
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const video = content.document.querySelector("video");
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Assert.ok(!SpecialPowers.wrap(video).isInViewPort,
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"The video element should not be in the viewport");
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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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