webvtt/api/VTTCue/snapToLines.html

<!doctype html>
<title>VTTCue.snapToLines</title>
<link rel="help" href="https://w3c.github.io/webvtt/#dom-vttcue-snaptolines">
<script src=/resources/testharness.js></script>
<script src=/resources/testharnessreport.js></script>
<script src=common.js></script>
<div id=log></div>
<script>
setup(function(){
    window.video = document.createElement('video');
    window.t1 = video.addTextTrack('subtitles');
    document.body.appendChild(video);
});
test(function(){
    var c1 = new VTTCue(0, 1, 'text1');
    assert_true('snapToLines' in c1, 'snapToLines is not supported');
    assert_true(c1.snapToLines);
    c1.line = 101;
    c1.snapToLines = false;
    assert_false(c1.snapToLines);
    c1.snapToLines = true;
    assert_true(c1.snapToLines);
    c1.line = -1;
    c1.snapToLines = false;
    assert_false(c1.snapToLines);
    c1.snapToLines = true;
    assert_true(c1.snapToLines);
    c1.line = 0;
    c1.snapToLines = false;
    assert_false(c1.snapToLines);
}, document.title+', script-created cue');

var t_parsed = async_test(document.title+', parsed cue');
t_parsed.step(function(){
    var t = document.createElement('track');
    t.onload = this.step_func(function(){
        var c1 = t.track.cues[0];
        assert_true(c1.snapToLines);
        c1.line = 101;
        c1.snapToLines = false;
        assert_false(c1.snapToLines);
        c1.snapToLines = true;
        assert_true(c1.snapToLines);
        c1.line = -1;
        c1.snapToLines = false;
        assert_false(c1.snapToLines);
        c1.snapToLines = true;
        assert_true(c1.snapToLines);
        c1.line = 0;
        c1.snapToLines = false;
        assert_false(c1.snapToLines);

        var c2 = t.track.cues[1];
        assert_true(c2.snapToLines);
        c2.line = 101;
        c2.snapToLines = false;
        assert_false(c2.snapToLines);
        c2.snapToLines = true;
        assert_true(c2.snapToLines);
        c2.line = -1;
        c2.snapToLines = false;
        assert_false(c2.snapToLines);
        c2.snapToLines = true;
        assert_true(c2.snapToLines);
        c2.line = 0;
        c2.snapToLines = false;
        assert_false(c2.snapToLines);

        var c3 = t.track.cues[2];
        assert_false(c3.snapToLines);
        c3.snapToLines = false;
        assert_false(c3.snapToLines);
        c3.snapToLines = true;
        assert_true(c3.snapToLines);
        c3.line = 101;
        c3.snapToLines = false;
        assert_false(c3.snapToLines);
        c3.snapToLines = true;
        assert_true(c3.snapToLines);
        c3.line = -1;
        c3.snapToLines = false;
        assert_false(c3.snapToLines);
        c3.snapToLines = true;
        assert_true(c3.snapToLines);
        c3.line = 0;
        c3.snapToLines = false;
        assert_false(c3.snapToLines);

        this.done();
    });
    t.onerror = this.step_func(function() {
      assert_unreached('got error event');
    });
    t.src = make_vtt_track('WEBVTT\n\n00:00:00.000 --> 00:00:00.001\ntest\n\n'+
                           '00:00:00.000 --> 00:00:00.001 line:0\ntest\n\n'+
                           '00:00:00.000 --> 00:00:00.001 line:0%\ntest', this);
    t.track.mode = 'showing';
    video.appendChild(t);
});
</script>