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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
commit36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree105e8c98ddea1c1e4784a60a5a6410fa416be2de /dom/media/webvtt/test/mochitest/test_texttrack.html
parentInitial commit. (diff)
downloadfirefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz
firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+<!DOCTYPE HTML>
+<html>
+<head>
+ <title>Test for Bug 833386 - TextTrackList</title>
+ <script src="/tests/SimpleTest/SimpleTest.js"></script>
+ <script type="text/javascript" src="manifest.js"></script>
+ <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+<body>
+<video id="v">
+<script type="text/javascript">
+/**
+ * This test is used to check different things.
+ * (1) the default value of track element's attributes
+ * (2) readonly attributes can't be modifted
+ * (3) the order of tracks in the media element's track list
+ */
+var enabledTrackElement = null;
+
+async function runTest() {
+ addFourTextTrackElementsToVideo();
+ startLoadingVideo();
+ await waitUntilEnableTrackLoaded();
+ checkTracksStatus();
+ SimpleTest.finish();
+}
+
+SimpleTest.waitForExplicitFinish();
+onload = runTest;
+
+/**
+ * The following are test helper functions.
+ */
+function addFourTextTrackElementsToVideo() {
+ let video = document.getElementById("v");
+ isnot(video.textTracks, undefined,
+ "HTMLMediaElement::TextTrack() property should be available.")
+
+ let trackList = video.textTracks;
+ is(trackList.length, 0, "Length should be 0.");
+
+ ok(typeof video.addTextTrack == "function",
+ "HTMLMediaElement::AddTextTrack() function should be available.")
+
+ // Insert some tracks in an order that is not sorted, we will test if they
+ // are sorted later.
+ info(`- Add a track element with label 'third' -`);
+ video.addTextTrack("subtitles", "third", "en-CA");
+ is(trackList.length, 1, "Length should be 1.");
+
+ let textTrack = video.textTracks[0];
+ checkAttributesDefaultValue(textTrack);
+ checkTextTrackMode(textTrack);
+ checkReadOnlyAttributes(textTrack);
+
+ info(`- Add a track element with label 'first' -`);
+ let trackOne = document.createElement("track");
+ video.appendChild(trackOne);
+ trackOne.label = "first";
+ trackOne.src = "basic.vtt";
+ trackOne.default = true;
+ trackOne.id = "2";
+ // The automatic track selection would choose the first track element with
+ // `default` attribute, so this track would be enable later.
+ enabledTrackElement = trackOne;
+
+ info(`- Add a track element with label 'fourth' -`);
+ video.addTextTrack("subtitles", "fourth", "en-CA");
+
+ info(`- Add a track element with label 'second' -`);
+ let trackTwo = document.createElement("track");
+ video.appendChild(trackTwo);
+ trackTwo.label = "second";
+ trackTwo.src = "basic.vtt";
+ // Although this track has `default` attribute as well, it won't be enable by
+ // the automatic track selection because it's not the first default track in
+ // the media element's track list.
+ trackTwo.default = true;
+}
+
+function checkAttributesDefaultValue(track) {
+ is(track.label, "third", "Label should be set to third.");
+ is(track.language, "en-CA", "Language should be en-CA.");
+ is(track.kind, "subtitles", "Default kind should be subtitles.");
+ is(track.mode, "hidden", "Default mode should be hidden.");
+}
+
+function checkTextTrackMode(track) {
+ // Mode should not allow a bogus value.
+ track.mode = 'bogus';
+ is(track.mode, 'hidden', "Mode should be not allow a bogus value.");
+
+ // Should allow all these values for mode.
+ changeTextTrackMode("showing");
+ changeTextTrackMode("disabled");
+ changeTextTrackMode("hidden");
+
+ function changeTextTrackMode(mode) {
+ track.mode = mode;
+ is(track.mode, mode, `Mode should allow \"${mode}\"`);
+ }
+}
+
+function checkReadOnlyAttributes(track) {
+ // All below are read-only properties and so should not allow setting.
+ track.label = "French subtitles";
+ is(track.label, "third", "Label is read-only so should still be \"label\".");
+ track.language = "en";
+ is(track.language, "en-CA", "Language is read-only so should still be \"en-CA\".");
+ track.kind = "captions";
+ is(track.kind, "subtitles", "Kind is read-only so should still be \"subtitles\"");
+}
+
+function startLoadingVideo() {
+ let video = document.getElementById("v");
+ video.src = "seek.webm";
+ video.preload = "metadata";
+}
+
+async function waitUntilEnableTrackLoaded() {
+ info(`wait until the enabled track finishes loading`);
+ await once(enabledTrackElement, "load");
+ is(enabledTrackElement.readyState, 2, "Track::ReadyState should be set to LOADED.");
+}
+
+function checkTracksStatus() {
+ // We're testing two things here,
+ // (1) the tracks created from a track element have a default mode 'disabled'
+ // and tracks created from 'addTextTrack' method have a default
+ // mode of 'hidden'.
+ // (2) we're testing that the tracks are sorted properly. For the tracks to
+ // be sorted the first two tracks, added through a TrackElement, must occupy
+ // the first two indexes in their TrackElement tree order. The second two
+ // tracks, added through the 'addTextTrack' method, will occupy the last two
+ // indexes in the order that they were added in.
+ let trackData = [
+ { label: "first", mode: "showing", id: "2" },
+ { label: "second", mode: "disabled", id: "" },
+ { label: "third", mode: "hidden", id: "" },
+ { label: "fourth", mode: "hidden", id: "" }
+ ];
+ let video = document.getElementById("v");
+ is(video.textTracks.length, trackData.length,
+ `TextTracks length should be ${trackData.length}`);
+ for (let i = 0; i < trackData.length; i++) {
+ let track = video.textTracks[i];
+ isnot(track, null, `Video should have a text track at index ${i}`);
+ let info = trackData[i];
+ for (let key in info) {
+ is(track[key], info[key],
+ `Track at index ${i} should have a '${key}' property with a value of '${info[key]}'.`);
+ }
+ }
+}
+
+</script>
+</body>
+</html>
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