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import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

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Roy Tam 2018-01-19 03:59:58 +08:00
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115
toolkit/content/tests/browser/browser_audioCompeting.js Normal file
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const PAGE = "https://example.com/browser/toolkit/content/tests/browser/file_multipleAudio.html";
function* wait_for_tab_playing_event(tab, expectPlaying) {
if (tab.soundPlaying == expectPlaying) {
ok(true, "The tab should " + (expectPlaying ? "" : "not ") + "be playing");
} else {
yield BrowserTestUtils.waitForEvent(tab, "TabAttrModified", false, (event) => {
if (event.detail.changed.indexOf("soundplaying") >= 0) {
is(tab.soundPlaying, expectPlaying, "The tab should " + (expectPlaying ? "" : "not ") + "be playing");
return true;
}
return false;
});
}
}
function play_audio_from_invisible_tab () {
return new Promise(resolve => {
var autoPlay = content.document.getElementById('autoplay');
if (!autoPlay) {
ok(false, "Can't get the audio element!");
}
is(autoPlay.paused, true, "Audio in tab 1 was paused by audio competing.");
autoPlay.play();
autoPlay.onpause = function() {
autoPlay.onpause = null;
ok(true, "Audio in tab 1 can't playback when other tab is playing in foreground.");
resolve();
};
});
}
function audio_should_keep_playing_even_go_to_background () {
var autoPlay = content.document.getElementById('autoplay');
if (!autoPlay) {
ok(false, "Can't get the audio element!");
}
is(autoPlay.paused, false, "Audio in tab 2 is still playing in the background.");
}
function play_non_autoplay_audio () {
return new Promise(resolve => {
var autoPlay = content.document.getElementById('autoplay');
var nonAutoPlay = content.document.getElementById('nonautoplay');
if (!autoPlay || !nonAutoPlay) {
ok(false, "Can't get the audio element!");
}
is(nonAutoPlay.paused, true, "Non-autoplay audio isn't started playing yet.");
nonAutoPlay.play();
nonAutoPlay.onplay = function() {
nonAutoPlay.onplay = null;
is(nonAutoPlay.paused, false, "Start Non-autoplay audio.");
is(autoPlay.paused, false, "Autoplay audio is still playing.");
resolve();
};
});
}
add_task(function* setup_test_preference() {
yield new Promise(resolve => {
SpecialPowers.pushPrefEnv({"set": [
["dom.audiochannel.audioCompeting", true],
["dom.ipc.processCount", 1]
]}, resolve);
});
});
add_task(function* cross_tabs_audio_competing () {
info("- open tab 1 in foreground -");
let tab1 = yield BrowserTestUtils.openNewForegroundTab(window.gBrowser,
"about:blank");
tab1.linkedBrowser.loadURI(PAGE);
yield wait_for_tab_playing_event(tab1, true);
info("- open tab 2 in foreground -");
let tab2 = yield BrowserTestUtils.openNewForegroundTab(window.gBrowser,
"about:blank");
tab2.linkedBrowser.loadURI(PAGE);
yield wait_for_tab_playing_event(tab1, false);
info("- open tab 3 in foreground -");
let tab3 = yield BrowserTestUtils.openNewForegroundTab(window.gBrowser,
"about:blank");
yield ContentTask.spawn(tab2.linkedBrowser, null,
audio_should_keep_playing_even_go_to_background);
info("- play audio from background tab 1 -");
yield ContentTask.spawn(tab1.linkedBrowser, null,
play_audio_from_invisible_tab);
info("- remove tabs -");
yield BrowserTestUtils.removeTab(tab1);
yield BrowserTestUtils.removeTab(tab2);
yield BrowserTestUtils.removeTab(tab3);
});
add_task(function* within_one_tab_audio_competing () {
info("- open tab and play audio1 -");
let tab = yield BrowserTestUtils.openNewForegroundTab(window.gBrowser,
"about:blank");
tab.linkedBrowser.loadURI(PAGE);
yield wait_for_tab_playing_event(tab, true);
info("- play audio2 in the same tab -");
yield ContentTask.spawn(tab.linkedBrowser, null,
play_non_autoplay_audio);
info("- remove tab -");
yield BrowserTestUtils.removeTab(tab);
});