| <!DOCTYPE html> |
| <html> |
| <head> |
| <title>Set MediaKeys multiple times in parallel</title> |
| <script src="encrypted-media-utils.js"></script> |
| <script src="../../resources/testharness.js"></script> |
| <script src="../../resources/testharnessreport.js"></script> |
| </head> |
| <body> |
| <video></video> |
| <script> |
| // Wait for an 'encrypted' event as a promise. |
| function wait_for_encrypted_event(video) |
| { |
| return new Promise(function(resolve) { |
| video.addEventListener('encrypted', function listener(e) { |
| video.removeEventListener('encrypted', listener); |
| resolve(); |
| }); |
| }); |
| }; |
| |
| // Return a promise that calls setMediaKeys() and returns 1 if |
| // resolved, 0 if rejected. If |must_succeed| is true, then |
| // setMediaKeys() should not fail. |
| function setMediaKeys_as_count(video, mediaKeys, must_succeed) |
| { |
| return video.setMediaKeys(mediaKeys).then(function() { |
| return 1; |
| }, function() { |
| assert_false(must_succeed); |
| return 0; |
| }); |
| }; |
| |
| // Return the sum of the results from |promises|. Each promise |
| // must return a number. |
| function count_promise_results(promises) |
| { |
| var count = 0; |
| var result = Promise.resolve(null); |
| |
| promises.forEach(function(promise) { |
| result = result.then(function() { |
| return promise; |
| }).then(function(i) { |
| count += i; |
| }); |
| }); |
| |
| return result.then(function() { return count; }); |
| }; |
| |
| promise_test(function(test) |
| { |
| var video = document.querySelector('video'); |
| var content = '../content/test-encrypted.webm'; |
| var access; |
| var mediaKeys1; |
| var mediaKeys2; |
| var mediaKeys3; |
| var mediaKeys4; |
| var mediaKeys5; |
| |
| // Start a video now so that it is waiting for MediaKeys |
| // in order to continue. |
| video.src = content; |
| video.play(); |
| return wait_for_encrypted_event(video).then(function() { |
| return navigator.requestMediaKeySystemAccess('org.w3.clearkey', getConfigurationForFile(content)); |
| }).then(function(result) { |
| access = result; |
| return access.createMediaKeys(); |
| }).then(function(result) { |
| mediaKeys1 = result; |
| return access.createMediaKeys(); |
| }).then(function(result) { |
| mediaKeys2 = result; |
| return access.createMediaKeys(); |
| }).then(function(result) { |
| mediaKeys3 = result; |
| return access.createMediaKeys(); |
| }).then(function(result) { |
| mediaKeys4 = result; |
| return access.createMediaKeys(); |
| }).then(function(result) { |
| mediaKeys5 = result; |
| // Create 5 calls to setMediaKeys(). The first one must |
| // succeed, the others are optional. |
| var p1 = setMediaKeys_as_count(video, mediaKeys1, true); |
| var p2 = setMediaKeys_as_count(video, mediaKeys2, false); |
| var p3 = setMediaKeys_as_count(video, mediaKeys3, false); |
| var p4 = setMediaKeys_as_count(video, mediaKeys4, false); |
| var p5 = setMediaKeys_as_count(video, mediaKeys5, false); |
| return count_promise_results([p1, p2, p3, p4, p5]); |
| }).then(function(count) { |
| // At least one of the setMediaKeys() calls should have |
| // succeeded. |
| assert_greater_than(count, 0); |
| }); |
| }, 'Set MediaKeys multiple times in parallel.'); |
| </script> |
| </body> |
| </html> |
