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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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104
toolkit/content/tests/browser/browser_mediaPlayback_mute.js Normal file
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const PAGE = "https://example.com/browser/toolkit/content/tests/browser/file_mediaPlayback2.html";
const FRAME = "https://example.com/browser/toolkit/content/tests/browser/file_mediaPlaybackFrame2.html";
function wait_for_event(browser, event) {
return BrowserTestUtils.waitForEvent(browser, event, false, (event) => {
is(event.originalTarget, browser, "Event must be dispatched to correct browser.");
return true;
});
}
function* test_audio_in_browser() {
function get_audio_element() {
var doc = content.document;
var list = doc.getElementsByTagName('audio');
if (list.length == 1) {
return list[0];
}
// iframe?
list = doc.getElementsByTagName('iframe');
var iframe = list[0];
list = iframe.contentDocument.getElementsByTagName('audio');
return list[0];
}
var audio = get_audio_element();
return {
computedVolume: audio.computedVolume,
computedMuted: audio.computedMuted
}
}
function* test_on_browser(url, browser) {
browser.loadURI(url);
yield wait_for_event(browser, "DOMAudioPlaybackStarted");
var result = yield ContentTask.spawn(browser, null, test_audio_in_browser);
is(result.computedVolume, 1, "Audio volume is 1");
is(result.computedMuted, false, "Audio is not muted");
ok(!browser.audioMuted, "Audio should not be muted by default");
browser.mute();
ok(browser.audioMuted, "Audio should be muted now");
yield wait_for_event(browser, "DOMAudioPlaybackStopped");
result = yield ContentTask.spawn(browser, null, test_audio_in_browser);
is(result.computedVolume, 0, "Audio volume is 0 when muted");
is(result.computedMuted, true, "Audio is muted");
}
function* test_visibility(url, browser) {
browser.loadURI(url);
yield wait_for_event(browser, "DOMAudioPlaybackStarted");
var result = yield ContentTask.spawn(browser, null, test_audio_in_browser);
is(result.computedVolume, 1, "Audio volume is 1");
is(result.computedMuted, false, "Audio is not muted");
yield BrowserTestUtils.withNewTab({
gBrowser,
url: "about:blank",
}, function() {});
ok(!browser.audioMuted, "Audio should not be muted by default");
browser.mute();
ok(browser.audioMuted, "Audio should be muted now");
yield wait_for_event(browser, "DOMAudioPlaybackStopped");
result = yield ContentTask.spawn(browser, null, test_audio_in_browser);
is(result.computedVolume, 0, "Audio volume is 0 when muted");
is(result.computedMuted, true, "Audio is muted");
}
add_task(function*() {
yield new Promise((resolve) => {
SpecialPowers.pushPrefEnv({"set": [
["media.useAudioChannelService.testing", true]
]}, resolve);
});
});
add_task(function* test_page() {
yield BrowserTestUtils.withNewTab({
gBrowser,
url: "about:blank",
}, test_on_browser.bind(undefined, PAGE));
});
add_task(function* test_frame() {
yield BrowserTestUtils.withNewTab({
gBrowser,
url: "about:blank",
}, test_on_browser.bind(undefined, FRAME));
});
add_task(function* test_frame() {
yield BrowserTestUtils.withNewTab({
gBrowser,
url: "about:blank",
}, test_visibility.bind(undefined, PAGE));
});