summaryrefslogtreecommitdiffstats
path: root/dom/base/test/test_noAudioNotificationOnMutedOrVolume0Element.html
blob: 0e4cc93f03fd224d54b687a8ba7fcf0e9531dffe (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
<!DOCTYPE HTML>
<html>
<head>
  <title>Test for audio controller in windows</title>
  <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
</head>
<body>
<pre id="test">
</pre>

<script type="application/javascript">

SimpleTest.waitForExplicitFinish();

var expectedNotification = null;

var observer = {
  observe: function(subject, topic, data) {
    if (expectedNotification !== null) {
      is(topic, "audio-playback", "audio-playback received");
      is(data, expectedNotification, "This is the right notification");
      runTest();
    } else {
      ok(false, "should not receive audio-playback notification!");
    }
  }
};

var observerService = SpecialPowers.Cc["@mozilla.org/observer-service;1"]
                                   .getService(SpecialPowers.Ci.nsIObserverService);

var audio = new Audio();
audio.loop = true;

var tests = [
  function() {
    observerService.addObserver(observer, "audio-playback", false);
    ok(true, "Observer set");

    audio.src = "audio.ogg";
    // Wait for the audio metadata to become available so that we have an audio track.
    audio.onloadedmetadata = runTest;
  },

  // Verify that unmuting when the volume is 0 doesn't dispatch the events.
  function() {
    expectedNotification = 'active';
    audio.play();
  },

  function() {
    expectedNotification = 'inactive-nonaudible';
    audio.muted = true;
  },

  function() {
    expectedNotification = null;
    audio.volume = 0;
    // Yield to the event loop a few times to make sure that audio-playback is not dispatched.
    SimpleTest.executeSoon(function() {
      SimpleTest.executeSoon(function() {
        SimpleTest.executeSoon(function() {
          runTest();
        });
      });
    });
  },

  function() {
    expectedNotification = null;
    audio.muted = false;
    // Yield to the event loop a few times to make sure that audio-playback is not dispatched.
    SimpleTest.executeSoon(function() {
      SimpleTest.executeSoon(function() {
        SimpleTest.executeSoon(function() {
          runTest();
        });
      });
    });
  },

  function() {
    expectedNotification = 'active';
    audio.volume = 0.5;
  },

  function() {
    expectedNotification = 'inactive-pause';
    audio.pause();
  },

  // Verify that raising the volume when muted doesn't dispatch the events.
  function() {
    expectedNotification = 'active';
    audio.play();
  },

  function() {
    expectedNotification = 'inactive-nonaudible';
    audio.muted = true;
  },

  function() {
    expectedNotification = null;
    audio.volume = 0;
    // Yield to the event loop a few times to make sure that audio-playback is not dispatched.
    SimpleTest.executeSoon(function() {
      SimpleTest.executeSoon(function() {
        SimpleTest.executeSoon(function() {
          runTest();
        });
      });
    });
  },

  function() {
    expectedNotification = null;
    audio.volume = 0.5;
    // Yield to the event loop a few times to make sure that audio-playback is not dispatched.
    SimpleTest.executeSoon(function() {
      SimpleTest.executeSoon(function() {
        SimpleTest.executeSoon(function() {
          runTest();
        });
      });
    });
  },

  function() {
    expectedNotification = 'active';
    audio.muted = false;
  },

  function() {
    expectedNotification = 'inactive-pause';
    audio.pause();
  },

  function() {
    observerService.removeObserver(observer, "audio-playback");
    ok(true, "Observer removed");
    runTest();
  }
];

function runTest() {
  if (!tests.length) {
    SimpleTest.finish();
    return;
  }

  var test = tests.shift();
  test();
}

runTest();

</script>
</body>
</html>