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[yaffs-website] / node_modules / video.js / es5 / tracks / text-track-list-converter.js

diff --git a/node_modules/video.js/es5/tracks/text-track-list-converter.js b/node_modules/video.js/es5/tracks/text-track-list-converter.js
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+'use strict';
+
+exports.__esModule = true;
+/**
+ * @file text-track-list-converter.js Utilities for capturing text track state and
+ * re-creating tracks based on a capture.
+ *
+ * @module text-track-list-converter
+ */
+
+/**
+ * Examine a single {@link TextTrack} and return a JSON-compatible javascript object that
+ * represents the {@link TextTrack}'s state.
+ *
+ * @param {TextTrack} track
+ *        The text track to query.
+ *
+ * @return {Object}
+ *         A serializable javascript representation of the TextTrack.
+ * @private
+ */
+var trackToJson_ = function trackToJson_(track) {
+  var ret = ['kind', 'label', 'language', 'id', 'inBandMetadataTrackDispatchType', 'mode', 'src'].reduce(function (acc, prop, i) {
+
+    if (track[prop]) {
+      acc[prop] = track[prop];
+    }
+
+    return acc;
+  }, {
+    cues: track.cues && Array.prototype.map.call(track.cues, function (cue) {
+      return {
+        startTime: cue.startTime,
+        endTime: cue.endTime,
+        text: cue.text,
+        id: cue.id
+      };
+    })
+  });
+
+  return ret;
+};
+
+/**
+ * Examine a {@link Tech} and return a JSON-compatible javascript array that represents the
+ * state of all {@link TextTrack}s currently configured. The return array is compatible with
+ * {@link text-track-list-converter:jsonToTextTracks}.
+ *
+ * @param {Tech} tech
+ *        The tech object to query
+ *
+ * @return {Array}
+ *         A serializable javascript representation of the {@link Tech}s
+ *         {@link TextTrackList}.
+ */
+var textTracksToJson = function textTracksToJson(tech) {
+
+  var trackEls = tech.$$('track');
+
+  var trackObjs = Array.prototype.map.call(trackEls, function (t) {
+    return t.track;
+  });
+  var tracks = Array.prototype.map.call(trackEls, function (trackEl) {
+    var json = trackToJson_(trackEl.track);
+
+    if (trackEl.src) {
+      json.src = trackEl.src;
+    }
+    return json;
+  });
+
+  return tracks.concat(Array.prototype.filter.call(tech.textTracks(), function (track) {
+    return trackObjs.indexOf(track) === -1;
+  }).map(trackToJson_));
+};
+
+/**
+ * Create a set of remote {@link TextTrack}s on a {@link Tech} based on an array of javascript
+ * object {@link TextTrack} representations.
+ *
+ * @param {Array} json
+ *        An array of `TextTrack` representation objects, like those that would be
+ *        produced by `textTracksToJson`.
+ *
+ * @param {Tech} tech
+ *        The `Tech` to create the `TextTrack`s on.
+ */
+var jsonToTextTracks = function jsonToTextTracks(json, tech) {
+  json.forEach(function (track) {
+    var addedTrack = tech.addRemoteTextTrack(track).track;
+
+    if (!track.src && track.cues) {
+      track.cues.forEach(function (cue) {
+        return addedTrack.addCue(cue);
+      });
+    }
+  });
+
+  return tech.textTracks();
+};
+
+exports['default'] = { textTracksToJson: textTracksToJson, jsonToTextTracks: jsonToTextTracks, trackToJson_: trackToJson_ };