# All files / src/utils cues.js

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     import { fixLineBreaks } from './vttparser';

    export function newCue (track, startTime, endTime, captionScreen) {
      let row;
      let cue;
      let indenting;
      let indent;
      let text;
      let VTTCue = window.VTTCue || window.TextTrackCue;

      for (let r = 0; r < captionScreen.rows.length; r++) {
        row = captionScreen.rows[r];
        indenting = true;
        indent = 0;
        text = '';

        if (!row.isEmpty()) {
          for (let c = 0; c < row.chars.length; c++) {
            if (row.chars[c].uchar.match(/\s/) && indenting) {
              indent++;
            } else {
              text += row.chars[c].uchar;
              indenting = false;
            }
          }
          // To be used for cleaning-up orphaned roll-up captions
          row.cueStartTime = startTime;

          // Give a slight bump to the endTime if it's equal to startTime to avoid a SyntaxError in IE
          if (startTime === endTime) {
            endTime += 0.0001;
          }

          cue = new VTTCue(startTime, endTime, fixLineBreaks(text.trim()));

          if (indent >= 16) {
            indent--;
          } else {
            indent++;
          }

          // VTTCue.line get's flakey when using controls, so let's now include line 13&14
          // also, drop line 1 since it's to close to the top
          if (navigator.userAgent.match(/Firefox\//)) {
            cue.line = r + 1;
          } else {
            cue.line = (r > 7 ? r - 2 : r + 1);
          }

          cue.align = 'left';
          // Clamp the position between 0 and 100 - if out of these bounds, Firefox throws an exception and captions break
          cue.position = Math.max(0, Math.min(100, 100 * (indent / 32)));
          track.addCue(cue);
        }
      }
    }