34 lines
953 B
HTML
34 lines
953 B
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>Test Screen Wake Lock responds to dynamic pref changes</title>
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<script src="/tests/SimpleTest/SimpleTest.js"></script>
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<link rel="stylesheet" href="/tests/SimpleTest/test.css"/>
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<script type="application/javascript">
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/* globals SpecialPowers */
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'use strict';
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function spinEventLoop() {
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return new Promise(resolve => {
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setTimeout(resolve, 0);
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});
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}
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add_task(async function my_test() {
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const lock = await navigator.wakeLock.request("screen");
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await SpecialPowers.pushPrefEnv({
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set: [["dom.screenwakelock.enabled", false]],
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});
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await spinEventLoop();
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ok(lock.released, "Lock was released once pref was deactivated");
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await SpecialPowers.popPrefEnv();
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});
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</script>
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</head>
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<body>
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<p id="display"></p>
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<div id="content" style="display: none"></div>
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<pre id="test"></pre>
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</body>
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</html>
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