mirror of
https://github.com/shaka-project/shaka-player.git
synced 2026-06-26 17:46:26 +03:00
Sandra Lokshina
c6c6d05810
This change creates a lib/text directory and moves all files with text-related logic to it. It also lays the ground for separating text parsing and display logic. (That change will introduce even more files with text-related logic which will crowd lib/media directory). Issue #796. Change-Id: I65ac134020a0126ff02a8f2067beb73870232e65
579 lines
18 KiB
JavaScript
579 lines
18 KiB
JavaScript
/**
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* @license
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* Copyright 2016 Google Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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describe('TtmlTextParser', function() {
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var originalVTTCue;
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beforeAll(function() {
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originalVTTCue = window.VTTCue;
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});
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afterAll(function() {
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window.VTTCue = originalVTTCue;
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});
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beforeEach(function() {
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window.VTTCue = function(start, end, text) {
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this.startTime = start;
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this.endTime = end;
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this.text = text;
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};
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});
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it('supports no cues', function() {
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verifyHelper([],
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'<tt></tt>',
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{periodStart: 0, segmentStart: 0, segmentEnd: 0 });
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});
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it('supports div with no cues but whitespace', function() {
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verifyHelper(
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[],
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'<tt><body><div> \r\n </div></body></tt>',
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{periodStart: 0, segmentStart: 0, segmentEnd: 0 });
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});
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it('supports xml:space', function() {
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var ttBody = '\n' +
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' <body>\n' +
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' <p begin="01:02.03" end="01:02.05">\n' +
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' <span> A B C </span>\n' +
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' </p>\n' +
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' </body>\n';
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// When xml:space="default", ignore whitespace outside tags.
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verifyHelper(
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[
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{start: 62.03, end: 62.05, text: 'A B C'}
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],
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'<tt xml:space="default">' + ttBody + '</tt>',
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{periodStart: 0, segmentStart: 0, segmentEnd: 0 });
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// When xml:space="preserve", take them into account.
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verifyHelper(
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[
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{start: 62.03, end: 62.05, text: '\n A B C \n '}
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],
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'<tt xml:space="preserve">' + ttBody + '</tt>',
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{periodStart: 0, segmentStart: 0, segmentEnd: 0 });
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// The default value for xml:space is "default".
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verifyHelper(
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[
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{start: 62.03, end: 62.05, text: 'A B C'}
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],
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'<tt>' + ttBody + '</tt>',
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{periodStart: 0, segmentStart: 0, segmentEnd: 0 });
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// Any other value is rejected as an error.
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errorHelper(shaka.util.Error.Code.INVALID_XML,
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'<tt xml:space="invalid">' + ttBody + '</tt>');
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});
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it('rejects invalid ttml', function() {
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errorHelper(shaka.util.Error.Code.INVALID_XML, '<test></test>');
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errorHelper(shaka.util.Error.Code.INVALID_XML, '');
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});
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it('rejects invalid time format', function() {
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errorHelper(shaka.util.Error.Code.INVALID_TEXT_CUE,
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'<tt><body><p begin="test" end="test"></p></body></tt>');
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errorHelper(shaka.util.Error.Code.INVALID_TEXT_CUE,
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'<tt><body><p begin="3.45" end="1a"></p></body></tt>');
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});
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it('supports colon formatted time', function() {
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verifyHelper(
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[
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{start: 62.05, end: 3723.2, text: 'Test'}
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],
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'<tt><body><p begin="01:02.05" ' +
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'end="01:02:03.200">Test</p></body></tt>',
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{periodStart: 0, segmentStart: 0, segmentEnd: 0 });
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});
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it('accounts for offset', function() {
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verifyHelper(
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[
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{start: 69.05, end: 3730.2, text: 'Test'}
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],
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'<tt><body><p begin="01:02.05" ' +
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'end="01:02:03.200">Test</p></body></tt>',
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{periodStart: 7, segmentStart: 0, segmentEnd: 0 });
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});
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it('supports time in 0.00h 0.00m 0.00s format', function() {
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verifyHelper(
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[
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{start: 3567.03, end: 5402.3, text: 'Test'}
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],
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'<tt><body><p begin="59.45m30ms" ' +
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'end="1.5h2.3s">Test</p></body></tt>',
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{periodStart: 0, segmentStart: 0, segmentEnd: 0 });
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});
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it('supports time with frame rate', function() {
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verifyHelper(
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[
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{start: 615.5, end: 663, text: 'Test'}
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],
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'<tt xmlns:ttp="ttml#parameter" ' +
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'ttp:frameRate="30"> ' +
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'<body>' +
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'<p begin="00:10:15:15" end="00:11:02:30">Test</p>' +
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'</body>' +
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'</tt>',
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{periodStart: 0, segmentStart: 0, segmentEnd: 0 });
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});
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it('supports time with frame rate multiplier', function() {
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verifyHelper(
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[
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{start: 615.5, end: 663, text: 'Test'}
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],
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'<tt xmlns:ttp="ttml#parameter" ' +
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'ttp:frameRate="60" ' +
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'ttp:frameRateMultiplier="1 2"> ' +
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'<body>' +
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'<p begin="00:10:15:15" end="00:11:02:30">Test</p>' +
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'</body>' +
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'</tt>',
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{periodStart: 0, segmentStart: 0, segmentEnd: 0 });
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});
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it('supports time with subframes', function() {
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verifyHelper(
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[
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{start: 615.517, end: 663, text: 'Test'}
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],
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'<tt xmlns:ttp="ttml#parameter" ' +
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'ttp:frameRate="30" ' +
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'ttp:subFrameRate="2"> ' +
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'<body>' +
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'<p begin="00:10:15:15.1" end="00:11:02:29.2">Test</p>' +
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'</body>' +
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'</tt>',
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{periodStart: 0, segmentStart: 0, segmentEnd: 0 });
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});
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it('supports time in frame format', function() {
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verifyHelper(
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[
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{start: 2.5, end: 10.01, text: 'Test'}
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],
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'<tt xmlns:ttp="ttml#parameter" ' +
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'ttp:frameRate="60" ' +
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'ttp:frameRateMultiplier="1 2">' +
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'<body>' +
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'<p begin="75f" end="300.3f">Test</p>' +
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'</body>' +
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'</tt>',
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{periodStart: 0, segmentStart: 0, segmentEnd: 0 });
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});
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it('supports time in tick format', function() {
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verifyHelper(
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[
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{start: 5, end: 6.02, text: 'Test'}
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],
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'<tt xmlns:ttp="ttml#parameter" ' +
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'ttp:frameRate="60" ' +
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'ttp:tickRate="10">' +
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'<body>' +
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'<p begin="50t" end="60.2t">Test</p>' +
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'</body>' +
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'</tt>',
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{periodStart: 0, segmentStart: 0, segmentEnd: 0 });
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});
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it('supports time with duration', function() {
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verifyHelper(
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[
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{start: 62.05, end: 67.05, text: 'Test'}
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],
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'<tt><body><p begin="01:02.05" ' +
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'dur="5s">Test</p></body></tt>',
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{periodStart: 0, segmentStart: 0, segmentEnd: 0 });
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});
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it('parses alignment from textAlign attribute of a region', function() {
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verifyHelper(
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[
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{start: 62.05, end: 3723.2, text: 'Test', lineAlign: 'start'}
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],
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'<tt xmlns:tts="ttml#styling">' +
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'<layout>' +
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'<region xml:id="subtitleArea" tts:textAlign="start" />' +
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'</layout>' +
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'<body region="subtitleArea">' +
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'<p begin="01:02.05" end="01:02:03.200">Test</p>' +
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'</body>' +
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'</tt>',
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{periodStart: 0, segmentStart: 0, segmentEnd: 0 });
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});
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it('parses alignment from <style> block with id on region', function() {
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verifyHelper(
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[
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{start: 62.05, end: 3723.2, text: 'Test', lineAlign: 'end'}
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],
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'<tt xmlns:tts="ttml#styling">' +
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'<styling>' +
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'<style xml:id="s1" tts:textAlign="end"/>' +
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'</styling>' +
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'<layout xmlns:tts="ttml#styling">' +
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'<region xml:id="subtitleArea" style="s1" />' +
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'</layout>' +
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'<body region="subtitleArea">' +
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'<p begin="01:02.05" end="01:02:03.200">Test</p>' +
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'</body>' +
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'</tt>',
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{periodStart: 0, segmentStart: 0, segmentEnd: 0 });
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});
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it('parses alignment from <style> block with id on p', function() {
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verifyHelper(
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[
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{start: 62.05, end: 3723.2, text: 'Test', lineAlign: 'end'}
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],
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'<tt xmlns:tts="ttml#styling">' +
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'<styling>' +
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'<style xml:id="s1" tts:textAlign="end"/>' +
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'</styling>' +
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'<layout xmlns:tts="ttml#styling">' +
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'<region xml:id="subtitleArea" />' +
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'</layout>' +
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'<body region="subtitleArea">' +
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'<p begin="01:02.05" end="01:02:03.200" style="s1">Test</p>' +
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'</body>' +
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'</tt>',
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{periodStart: 0, segmentStart: 0, segmentEnd: 0 });
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});
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it('supports size setting', function() {
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verifyHelper(
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[
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{start: 62.05, end: 3723.2, text: 'Test', size: 50}
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],
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'<tt xmlns:tts="ttml#styling">' +
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'<layout>' +
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'<region xml:id="subtitleArea" tts:extent="50% 16%" />' +
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'</layout>' +
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'<body region="subtitleArea">' +
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'<p begin="01:02.05" end="01:02:03.200">Test</p>' +
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'</body>' +
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'</tt>',
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{periodStart: 0, segmentStart: 0, segmentEnd: 0 });
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});
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it('supports line and position settings for horizontal text',
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function() {
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verifyHelper(
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[
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{start: 62.05, end: 3723.2, text: 'Test', position: 50, line: 16}
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],
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'<tt xmlns:tts="ttml#styling">' +
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'<layout>' +
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'<region xml:id="subtitleArea" tts:origin="50% 16%"/>' +
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'</layout>' +
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'<body region="subtitleArea">' +
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'<p begin="01:02.05" end="01:02:03.200">Test</p>' +
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'</body>' +
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'</tt>',
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{periodStart: 0, segmentStart: 0, segmentEnd: 0 });
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verifyHelper(
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[
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{start: 62.05, end: 3723.2, text: 'Test', position: 50, line: 16}
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],
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'<tt xmlns:tts="ttml#styling">' +
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'<layout>' +
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'<region xml:id="subtitleArea" tts:origin="50% 16%" ' +
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'tts:writingMode="lrtb" />' +
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'</layout>' +
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'<body region="subtitleArea">' +
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'<p begin="01:02.05" end="01:02:03.200">Test</p>' +
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'</body>' +
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'</tt>',
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{periodStart: 0, segmentStart: 0, segmentEnd: 0 });
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verifyHelper(
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[
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{start: 62.05, end: 3723.2, text: 'Test', position: 50, line: 16}
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],
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'<tt xmlns:tts="ttml#styling">' +
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'<layout>' +
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'<region xml:id="subtitleArea" tts:origin="50% 16%" ' +
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'tts:writingMode="lr" />' +
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'</layout>' +
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'<body region="subtitleArea">' +
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'<p begin="01:02.05" end="01:02:03.200">Test</p>' +
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'</body>' +
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'</tt>',
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{periodStart: 0, segmentStart: 0, segmentEnd: 0 });
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});
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it('supports line and position settings for vertical text',
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function() {
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verifyHelper(
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[
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{start: 62.05, end: 3723.2, text: 'Test', position: 16, line: 50}
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],
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'<tt xmlns:tts="ttml#styling">' +
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'<layout>' +
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'<region xml:id="subtitleArea" tts:origin="50% 16%" ' +
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'tts:writingMode="tb" />' +
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'</layout>' +
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'<body region="subtitleArea">' +
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'<p begin="01:02.05" end="01:02:03.200">Test</p>' +
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'</body>' +
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'</tt>',
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{periodStart: 0, segmentStart: 0, segmentEnd: 0 });
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verifyHelper(
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[
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{start: 62.05, end: 3723.2, text: 'Test', position: 16, line: 50}
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],
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'<tt xmlns:tts="ttml#styling">' +
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'<layout>' +
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'<region xml:id="subtitleArea" tts:origin="50% 16%" ' +
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'tts:writingMode="tblr" />' +
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'</layout>' +
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'<body region="subtitleArea">' +
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'<p begin="01:02.05" end="01:02:03.200">Test</p>' +
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'</body>' +
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'</tt>',
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{periodStart: 0, segmentStart: 0, segmentEnd: 0 });
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verifyHelper(
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[
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{start: 62.05, end: 3723.2, text: 'Test', position: 16, line: 50}
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],
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'<tt xmlns:tts="ttml#styling">' +
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'<layout>' +
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'<region xml:id="subtitleArea" tts:origin="50% 16%" ' +
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'tts:writingMode="tbrl" />' +
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'</layout>' +
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'<body region="subtitleArea">' +
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'<p begin="01:02.05" end="01:02:03.200">Test</p>' +
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'</body>' +
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'</tt>',
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{periodStart: 0, segmentStart: 0, segmentEnd: 0 });
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});
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it('supports vertical setting', function() {
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verifyHelper(
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[
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{start: 62.05, end: 3723.2, text: 'Test', vertical: 'lr'}
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],
|
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'<tt xmlns:tts="ttml#styling">' +
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'<layout>' +
|
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'<region xml:id="subtitleArea" ' +
|
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'tts:writingMode="tb" />' +
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'</layout>' +
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'<body region="subtitleArea">' +
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'<p begin="01:02.05" end="01:02:03.200">Test</p>' +
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'</body>' +
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'</tt>',
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{periodStart: 0, segmentStart: 0, segmentEnd: 0 });
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verifyHelper(
|
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[
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{start: 62.05, end: 3723.2, text: 'Test', vertical: 'rl'}
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|
],
|
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'<tt xmlns:tts="ttml#styling">' +
|
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'<layout>' +
|
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'<region xml:id="subtitleArea" ' +
|
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'tts:writingMode="tbrl" />' +
|
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'</layout>' +
|
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'<body region="subtitleArea">' +
|
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'<p begin="01:02.05" end="01:02:03.200">Test</p>' +
|
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'</body>' +
|
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'</tt>',
|
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{periodStart: 0, segmentStart: 0, segmentEnd: 0 });
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verifyHelper(
|
|
[
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{start: 62.05, end: 3723.2, text: 'Test', vertical: 'lr'}
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|
],
|
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'<tt xmlns:tts="ttml#styling">' +
|
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'<layout>' +
|
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'<region xml:id="subtitleArea" ' +
|
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'tts:writingMode="tblr" />' +
|
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'</layout>' +
|
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'<body region="subtitleArea">' +
|
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'<p begin="01:02.05" end="01:02:03.200">Test</p>' +
|
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'</body>' +
|
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'</tt>',
|
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{periodStart: 0, segmentStart: 0, segmentEnd: 0 });
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});
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|
|
|
it('disregards empty divs and ps', function() {
|
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verifyHelper(
|
|
[
|
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{start: 62.05, end: 3723.2, text: 'Test'}
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|
],
|
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'<tt>' +
|
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'<body>' +
|
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'<div>' +
|
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'<p begin="01:02.05" end="01:02:03.200">Test</p>' +
|
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'</div>' +
|
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'<div></div>' +
|
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'</body>' +
|
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'</tt>',
|
|
{periodStart: 0, segmentStart: 0, segmentEnd: 0 });
|
|
verifyHelper(
|
|
[
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|
{start: 62.05, end: 3723.2, text: 'Test'}
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|
],
|
|
'<tt>' +
|
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'<body>' +
|
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'<div>' +
|
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'<p begin="01:02.05" end="01:02:03.200">Test</p>' +
|
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'<p></p>' +
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'</div>' +
|
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'</body>' +
|
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'</tt>',
|
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{periodStart: 0, segmentStart: 0, segmentEnd: 0 });
|
|
verifyHelper(
|
|
[],
|
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'<tt>' +
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'<body>' +
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'<div>' +
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'<p></p>' +
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'</div>' +
|
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'<div></div>' +
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'</body>' +
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'</tt>',
|
|
{periodStart: 0, segmentStart: 0, segmentEnd: 0 });
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});
|
|
|
|
it('inserts newline characters into <br> tags', function() {
|
|
verifyHelper(
|
|
[
|
|
{start: 62.05, end: 3723.2, text: 'Line1\nLine2'}
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|
],
|
|
'<tt><body><p begin="01:02.05" ' +
|
|
'end="01:02:03.200">Line1<br/>Line2</p></body></tt>',
|
|
{periodStart: 0, segmentStart: 0, segmentEnd: 0 });
|
|
verifyHelper(
|
|
[
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|
{start: 62.05, end: 3723.2, text: 'Line1\nLine2'}
|
|
],
|
|
'<tt><body><p begin="01:02.05" ' +
|
|
'end="01:02:03.200"><span>Line1<br/>Line2</span></p></body></tt>',
|
|
{periodStart: 0, segmentStart: 0, segmentEnd: 0 });
|
|
});
|
|
|
|
it('parses cue alignment from textAlign attribute', function() {
|
|
verifyHelper(
|
|
[
|
|
{start: 62.05, end: 3723.2, text: 'Test', lineAlign: 'start',
|
|
align: 'left', positionAlign: 'line-left'}
|
|
],
|
|
'<tt xmlns:tts="ttml#styling">' +
|
|
'<styling>' +
|
|
'<style xml:id="s1" tts:textAlign="left"/>' +
|
|
'</styling>' +
|
|
'<layout xmlns:tts="ttml#styling">' +
|
|
'<region xml:id="subtitleArea" />' +
|
|
'</layout>' +
|
|
'<body region="subtitleArea">' +
|
|
'<p begin="01:02.05" end="01:02:03.200" style="s1">Test</p>' +
|
|
'</body>' +
|
|
'</tt>',
|
|
{periodStart: 0, segmentStart: 0, segmentEnd: 0 });
|
|
});
|
|
|
|
|
|
it('uses a workaround for browsers not supporting align=center', function() {
|
|
|
|
window.VTTCue = function(start, end, text) {
|
|
var align = 'middle';
|
|
Object.defineProperty(this, 'align', {
|
|
get: function() { return align; },
|
|
set: function(newValue) { if (newValue != 'center') align = newValue; }
|
|
});
|
|
this.startTime = start;
|
|
this.endTime = end;
|
|
this.text = text;
|
|
};
|
|
|
|
|
|
verifyHelper(
|
|
[
|
|
{start: 62.05, end: 3723.2, text: 'Test', lineAlign: 'center',
|
|
align: 'middle', position: 'auto', positionAlign: 'center'}
|
|
],
|
|
'<tt xmlns:tts="ttml#styling">' +
|
|
'<styling>' +
|
|
'<style xml:id="s1" tts:textAlign="center"/>' +
|
|
'</styling>' +
|
|
'<layout xmlns:tts="ttml#styling">' +
|
|
'<region xml:id="subtitleArea" />' +
|
|
'</layout>' +
|
|
'<body region="subtitleArea">' +
|
|
'<p begin="01:02.05" end="01:02:03.200" style="s1">Test</p>' +
|
|
'</body>' +
|
|
'</tt>',
|
|
{periodStart: 0, segmentStart: 0, segmentEnd: 0 });
|
|
});
|
|
|
|
|
|
/**
|
|
* @param {!Array} cues
|
|
* @param {string} text
|
|
* @param {shakaExtern.TextParser.TimeContext} time
|
|
*/
|
|
function verifyHelper(cues, text, time) {
|
|
var data = shaka.util.StringUtils.toUTF8(text);
|
|
var result = new shaka.text.TtmlTextParser().parseMedia(data, time);
|
|
expect(result).toBeTruthy();
|
|
expect(result.length).toBe(cues.length);
|
|
for (var i = 0; i < cues.length; i++) {
|
|
expect(result[i].startTime).toBeCloseTo(cues[i].start, 3);
|
|
expect(result[i].endTime).toBeCloseTo(cues[i].end, 3);
|
|
expect(result[i].text).toBe(cues[i].text);
|
|
|
|
if (cues[i].align)
|
|
expect(result[i].align).toBe(cues[i].align);
|
|
if (cues[i].lineAlign)
|
|
expect(result[i].lineAlign).toBe(cues[i].lineAlign);
|
|
if (cues[i].positionAlign)
|
|
expect(result[i].positionAlign).toBe(cues[i].positionAlign);
|
|
if (cues[i].size)
|
|
expect(result[i].size).toBe(cues[i].size);
|
|
if (cues[i].line)
|
|
expect(result[i].line).toBe(cues[i].line);
|
|
if (cues[i].position)
|
|
expect(result[i].position).toBe(cues[i].position);
|
|
if (cues[i].vertical)
|
|
expect(result[i].vertical).toBe(cues[i].vertical);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param {shaka.util.Error.Code} code
|
|
* @param {string} text
|
|
*/
|
|
function errorHelper(code, text) {
|
|
var error = new shaka.util.Error(
|
|
shaka.util.Error.Severity.CRITICAL, shaka.util.Error.Category.TEXT,
|
|
code);
|
|
var data = shaka.util.StringUtils.toUTF8(text);
|
|
try {
|
|
new shaka.text.TtmlTextParser().parseMedia(
|
|
data,
|
|
{periodStart: 0, segmentStart: 0, segmentEnd: 0});
|
|
fail('Invalid TTML file supported');
|
|
} catch (e) {
|
|
shaka.test.Util.expectToEqualError(e, error);
|
|
}
|
|
}
|
|
});
|