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comparison: dom/smil/test/test_smilExtDoc.xhtml
dom/smil/test/test_smilExtDoc.xhtml
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| 1 <html xmlns="http://www.w3.org/1999/xhtml"> | |
| 2 <!-- | |
| 3 https://bugzilla.mozilla.org/show_bug.cgi?id=628888 | |
| 4 --> | |
| 5 <head> | |
| 6 <title>Test for Bug 628888 - Animations in external document sometimes don't run</title> | |
| 7 <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script> | |
| 8 <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/> | |
| 9 </head> | |
| 10 <body style="margin:0px"> | |
| 11 <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=628888">Mozilla Bug 628888</a> | |
| 12 <p id="display"></p> | |
| 13 <div id="content" style="background: red; width: 50px; height: 50px"/> | |
| 14 | |
| 15 <pre id="test"> | |
| 16 <script type="application/javascript"> | |
| 17 <![CDATA[ | |
| 18 | |
| 19 /* Test for Bug 628888 - Animations in external document sometimes don't run | |
| 20 * | |
| 21 * This bug concerns a condition where an external document is loaded after the | |
| 22 * page show event is dispatched, leaving the external document paused. | |
| 23 * | |
| 24 * To reproduce the bug we attach an external document with animation after the | |
| 25 * page show event has fired. | |
| 26 * | |
| 27 * However, it is difficult to test if the animation is playing or not since we | |
| 28 * don't receive events from animations running in an external document. | |
| 29 * | |
| 30 * Our approach is to simply render the result to a canvas (which requires | |
| 31 * elevated privileges and that is why we are using a MochiTest rather | |
| 32 * than a reftest) and poll one of the pixels to see if it changes colour. | |
| 33 * | |
| 34 * This should mean the test succeeds quickly but fails slowly. | |
| 35 */ | |
| 36 | |
| 37 const POLL_INTERVAL = 100; // ms | |
| 38 const POLL_TIMEOUT = 10000; // ms | |
| 39 var accumulatedWaitTime = 0; | |
| 40 | |
| 41 function pageShow() | |
| 42 { | |
| 43 var content = document.getElementById("content"); | |
| 44 content.style.filter = "url(smilExtDoc_helper.svg#filter)"; | |
| 45 window.setTimeout(checkResult, 0); | |
| 46 } | |
| 47 | |
| 48 function checkResult() | |
| 49 { | |
| 50 var content = document.getElementById("content"); | |
| 51 var bbox = content.getBoundingClientRect(); | |
| 52 | |
| 53 var canvas = SpecialPowers.snapshotRect(window, bbox); | |
| 54 var ctx = canvas.getContext("2d"); | |
| 55 | |
| 56 var imgd = ctx.getImageData(bbox.width/2, bbox.height/2, 1, 1); | |
| 57 var isGreen = (imgd.data[0] == 0) && | |
| 58 (imgd.data[1] == 255) && | |
| 59 (imgd.data[2] == 0); | |
| 60 if (isGreen) { | |
| 61 ok(true, "Filter is animated as expected"); | |
| 62 } else if (accumulatedWaitTime >= POLL_TIMEOUT) { | |
| 63 ok(false, "No animation detected after waiting " + POLL_TIMEOUT + "ms"); | |
| 64 } else { | |
| 65 accumulatedWaitTime += POLL_INTERVAL; | |
| 66 window.setTimeout(checkResult, POLL_INTERVAL); | |
| 67 return; | |
| 68 } | |
| 69 // Hide our content since mochitests normally try to be visually "quiet" | |
| 70 content.style.display = 'none'; | |
| 71 SimpleTest.finish(); | |
| 72 } | |
| 73 window.addEventListener('pageshow', pageShow, false); | |
| 74 SimpleTest.waitForExplicitFinish(); | |
| 75 ]]> | |
| 76 </script> | |
| 77 </pre> | |
| 78 </body> | |
| 79 </html> |
