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comparison: content/media/webspeech/recognition/test/test_nested_eventloop.html
content/media/webspeech/recognition/test/test_nested_eventloop.html
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- TOR_BUG_9701
- changeset 13
- 44a2da4a2ab2
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| 1 <!DOCTYPE HTML> | |
| 2 <html> | |
| 3 <!-- | |
| 4 https://bugzilla.mozilla.org/show_bug.cgi?id=650295 | |
| 5 --> | |
| 6 <head> | |
| 7 <meta charset="utf-8"> | |
| 8 <title>Test for Bug 650295 -- Spin the event loop from inside a callback</title> | |
| 9 <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script> | |
| 10 <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/> | |
| 11 <script type="application/javascript" src="head.js"></script> | |
| 12 </head> | |
| 13 <body> | |
| 14 <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=650295">Mozilla Bug 650295</a> | |
| 15 <p id="display"></p> | |
| 16 <div id="content" style="display: none"> | |
| 17 | |
| 18 </div> | |
| 19 <pre id="test"> | |
| 20 <script type="text/javascript"> | |
| 21 SimpleTest.waitForExplicitFinish(); | |
| 22 | |
| 23 /* | |
| 24 * window.showModalDialog() can be used to spin the event loop, causing | |
| 25 * queued SpeechEvents (such as those created by calls to start(), stop() | |
| 26 * or abort()) to be processed immediately. | |
| 27 * When this is done from inside DOM event handlers, it is possible to | |
| 28 * cause reentrancy in our C++ code, which we should be able to withstand. | |
| 29 */ | |
| 30 | |
| 31 function abortAndSpinEventLoop(evt, sr) { | |
| 32 sr.abort(); | |
| 33 window.showModalDialog("javascript:window.close()"); | |
| 34 } | |
| 35 | |
| 36 function doneFunc() { | |
| 37 // Trigger gc now and wait some time to make sure this test gets the blame | |
| 38 // for any assertions caused by showModalDialog | |
| 39 // | |
| 40 // NB - The assertions should be gone, but this looks too scary to touch | |
| 41 // during batch cleanup. | |
| 42 var count = 0, GC_COUNT = 4; | |
| 43 | |
| 44 function triggerGCOrFinish() { | |
| 45 SpecialPowers.gc(); | |
| 46 count++; | |
| 47 | |
| 48 if (count == GC_COUNT) { | |
| 49 SimpleTest.finish(); | |
| 50 } | |
| 51 } | |
| 52 | |
| 53 for (var i = 0; i < GC_COUNT; i++) { | |
| 54 setTimeout(triggerGCOrFinish, 0); | |
| 55 } | |
| 56 } | |
| 57 | |
| 58 /* | |
| 59 * We start by performing a normal start, then abort from the audiostart | |
| 60 * callback and force the EVENT_ABORT to be processed while still inside | |
| 61 * the event handler. This causes the recording to stop, which raises | |
| 62 * the audioend and (later on) end events. | |
| 63 * Then, we abort (once again spinning the event loop) from the audioend | |
| 64 * handler, attempting to cause a re-entry into the abort code. This second | |
| 65 * call should be ignored, and we get the end callback and finish. | |
| 66 */ | |
| 67 | |
| 68 performTest({ | |
| 69 eventsToRequest: [ | |
| 70 "EVENT_START", | |
| 71 "EVENT_AUDIO_DATA", | |
| 72 ], | |
| 73 expectedEvents: { | |
| 74 "audiostart": abortAndSpinEventLoop, | |
| 75 "audioend": abortAndSpinEventLoop, | |
| 76 "end": null | |
| 77 }, | |
| 78 doneFunc: doneFunc, | |
| 79 prefs: [["media.webspeech.test.fake_fsm_events", true], | |
| 80 ["media.webspeech.test.fake_recognition_service", true]] | |
| 81 }); | |
| 82 | |
| 83 </script> | |
| 84 </pre> | |
| 85 </body> | |
| 86 </html> |
