<!DOCTYPE HTML> <html> <head> <title>Video controls with Audio file test</title> <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script> <script type="text/javascript" src="/tests/SimpleTest/EventUtils.js"></script> <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" /> </head> <body> <p id="display"></p> <div id="content"> <video id="video" controls preload="metadata"></video> </div> <pre id="test"> <script class="testbody" type="application/javascript;version=1.7"> var domUtils = SpecialPowers.Cc["@mozilla.org/inspector/dom-utils;1"]. getService(SpecialPowers.Ci.inIDOMUtils); function findElementByAttribute(element, aName, aValue) { if (!('getAttribute' in element)) { return false; } if (element.getAttribute(aName) === aValue) { return element; } let children = domUtils.getChildrenForNode(element, true); for (let child of children) { var result = findElementByAttribute(child, aName, aValue); if (result) { return result; } } return false; } function loadedmetadata(event) { SimpleTest.executeSoon(function() { var controlBar = findElementByAttribute(video, "class", "controlBar"); is(controlBar.getAttribute("fullscreen-unavailable"), "true", "Fullscreen button is hidden"); SimpleTest.finish(); }); } var video = document.getElementById("video"); SpecialPowers.pushPrefEnv({"set": [["media.cache_size", 40000]]}, startTest); function startTest() { // Kick off test once audio has loaded. video.addEventListener("loadedmetadata", loadedmetadata, false); video.src = "audio.ogg"; } SimpleTest.waitForExplicitFinish(); </script> </pre> </body> </html>