dom/browser-element/mochitest/priority/test_Visibility.html@7e26c7da4463
dom/browser-element/mochitest/priority/test_Visibility.html
Wed, 31 Dec 2014 06:55:50 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:55:50 +0100
- changeset 2
- 7e26c7da4463
- permissions
- -rw-r--r--
Added tag UPSTREAM_283F7C6 for changeset ca08bd8f51b2
1 <!DOCTYPE HTML>
2 <html>
3 <!--
4 Test that setVisible() changes a process's priority.
5 -->
6 <head>
7 <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
8 <script type="application/javascript" src="../browserElementTestHelpers.js"></script>
9 <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
10 </head>
11 <body>
13 <script type="application/javascript;version=1.7">
14 "use strict";
16 SimpleTest.waitForExplicitFinish();
17 browserElementTestHelpers.setEnabledPref(true);
18 browserElementTestHelpers.addPermission();
19 browserElementTestHelpers.enableProcessPriorityManager();
21 function runTest() {
22 var iframe = document.createElement('iframe');
23 iframe.setAttribute('mozbrowser', true);
24 iframe.src = browserElementTestHelpers.emptyPage1;
26 var childID = null;
27 expectOnlyOneProcessCreated().then(function(chid) {
28 childID = chid;
29 return Promise.all(
30 [expectPriorityChange(childID, 'FOREGROUND'),
31 expectMozbrowserEvent(iframe, 'loadend')]);
32 }).then(function() {
33 // Mark the frame as not visible. This should cause its priority to drop
34 // to BACKGROUND.
35 var p = expectPriorityChange(childID, 'BACKGROUND');
36 iframe.setVisible(false);
37 return p;
38 }).then(function() {
39 // Mark the frame as visible again. This should cause its priority change
40 // back to FOREGROUND.
41 var p = expectPriorityChange(childID, 'FOREGROUND');
42 iframe.setVisible(true);
43 return p;
44 }).then(SimpleTest.finish);
46 document.body.appendChild(iframe);
47 }
49 addEventListener('testready', runTest);
50 </script>
51 </body>
52 </html>
