content: var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
  
  var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };
  
  function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
  
  function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
  
  function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
  
  import PropTypes from 'prop-types';
  import React from 'react';
  import isEqual from 'lodash.isequal';
  import youTubePlayer from 'youtube-player';
  
  /**
   * Check whether a `props` change should result in the video being updated.
   *
   * @param {Object} prevProps
   * @param {Object} props
   */
  function shouldUpdateVideo(prevProps, props) {
    // A changing video should always trigger an update
    if (prevProps.videoId !== props.videoId) {
      return true;
    }
  
    // Otherwise, a change in the start/end time playerVars also requires a player
    // update.
    var prevVars = prevProps.opts.playerVars || {};
    var vars = props.opts.playerVars || {};
  
    return prevVars.start !== vars.start || prevVars.end !== vars.end;
  }
  
  /**
   * Neutralise API options that only require a video update, leaving only options
   * that require a player reset. The results can then be compared to see if a
   * player reset is necessary.
   *
   * @param {Object} opts
   */
  function filterResetOptions(opts) {
    return _extends({}, opts, {
      playerVars: _extends({}, opts.playerVars, {
        autoplay: 0,
        start: 0,
        end: 0
      })
    });
  }
  
  /**
   * Check whether a `props` change should result in the player being reset.
   * The player is reset when the `props.opts` change, except if the only change
   * is in the `start` and `end` playerVars, because a video update can deal with
   * those.
   *
   * @param {Object} prevProps
   * @param {Object} props
   */
  function shouldResetPlayer(prevProps, props) {
    return !isEqual(filterResetOptions(prevProps.opts), filterResetOptions(props.opts));
  }
  
  /**
   * Check whether a props change should result in an id or className update.
   *
   * @param {Object} prevProps
   * @param {Object} props
   */
  function shouldUpdatePlayer(prevProps, props) {
    return prevProps.id === props.id || prevProps.className === props.className;
  }
  
  var YouTube = function (_React$Component) {
    _inherits(YouTube, _React$Component);
  
    function YouTube(props) {
      _classCallCheck(this, YouTube);
  
      var _this = _possibleConstructorReturn(this, (YouTube.__proto__ || Object.getPrototypeOf(YouTube)).call(this, props));
  
      _this.onPlayerReady = function (event) {
        return _this.props.onReady(event);
      };
  
      _this.onPlayerError = function (event) {
        return _this.props.onError(event);
      };
  
      _this.onPlayerStateChange = function (event) {
        _this.props.onStateChange(event);
        switch (event.data) {
  
          case YouTube.PlayerState.ENDED:
            _this.props.onEnd(event);
            break;
  
          case YouTube.PlayerState.PLAYING:
            _this.props.onPlay(event);
            break;
  
          case YouTube.PlayerState.PAUSED:
            _this.props.onPause(event);
            break;
  
          default:
            return;
        }
      };
  
      _this.onPlayerPlaybackRateChange = function (event) {
        return _this.props.onPlaybackRateChange(event);
      };
  
      _this.onPlayerPlaybackQualityChange = function (event) {
        return _this.props.onPlaybackQualityChange(event);
      };
  
      _this.createPlayer = function () {
        // do not attempt to create a player server-side, it won't work
        if (typeof document === 'undefined') return;
        // create player
        var playerOpts = _extends({}, _this.props.opts, {
          // preload the `videoId` video if one is already given
          videoId: _this.props.videoId
        });
        _this.internalPlayer = youTubePlayer(_this.container, playerOpts);
        // attach event handlers
        _this.internalPlayer.on('ready', _this.onPlayerReady);
        _this.internalPlayer.on('error', _this.onPlayerError);
        _this.internalPlayer.on('stateChange', _this.onPlayerStateChange);
        _this.internalPlayer.on('playbackRateChange', _this.onPlayerPlaybackRateChange);
        _this.internalPlayer.on('playbackQualityChange', _this.onPlayerPlaybackQualityChange);
      };
  
      _this.resetPlayer = function () {
        return _this.internalPlayer.destroy().then(_this.createPlayer);
      };
  
      _this.updatePlayer = function () {
        _this.internalPlayer.getIframe().then(function (iframe) {
          iframe.setAttribute('id', _this.props.id);
          iframe.setAttribute('class', _this.props.className);
        });
      };
  
      _this.updateVideo = function () {
        if (typeof _this.props.videoId === 'undefined' || _this.props.videoId === null) {
          _this.internalPlayer.stopVideo();
          return;
        }
  
        // set queueing options
        var autoplay = false;
        var opts = {
          videoId: _this.props.videoId
        };
        if ('playerVars' in _this.props.opts) {
          autoplay = _this.props.opts.playerVars.autoplay === 1;
          if ('start' in _this.props.opts.playerVars) {
            opts.startSeconds = _this.props.opts.playerVars.start;
          }
          if ('end' in _this.props.opts.playerVars) {
            opts.endSeconds = _this.props.opts.playerVars.end;
          }
        }
  
        // if autoplay is enabled loadVideoById
        if (autoplay) {
          _this.internalPlayer.loadVideoById(opts);
          return;
        }
        // default behaviour just cues the video
        _this.internalPlayer.cueVideoById(opts);
      };
  
      _this.refContainer = function (container) {
        _this.container = container;
      };
  
      _this.container = null;
      _this.internalPlayer = null;
      return _this;
    }
  
    /**
      * Expose PlayerState constants for convenience. These constants can also be
      * accessed through the global YT object after the YouTube IFrame API is instantiated.
      * https://developers.google.com/youtube/iframe_api_reference#onStateChange
      */
  
  
    _createClass(YouTube, [{
      key: 'componentDidMount',
      value: function componentDidMount() {
        this.createPlayer();
      }
    }, {
      key: 'componentDidUpdate',
      value: function componentDidUpdate(prevProps) {
        if (shouldUpdatePlayer(prevProps, this.props)) {
          this.updatePlayer();
        }
  
        if (shouldResetPlayer(prevProps, this.props)) {
          this.resetPlayer();
        }
  
        if (shouldUpdateVideo(prevProps, this.props)) {
          this.updateVideo();
        }
      }
    }, {
      key: 'componentWillUnmount',
      value: function componentWillUnmount() {
        /**
         * Note: The `youtube-player` package that is used promisifies all Youtube
         * Player API calls, which introduces a delay of a tick before it actually
         * gets destroyed. Since React attempts to remove the element instantly
         * this method isn't quick enough to reset the container element.
         */
        this.internalPlayer.destroy();
      }
  
      /**
       * https://developers.google.com/youtube/iframe_api_reference#onReady
       *
       * @param {Object} event
       *   @param {Object} target - player object
       */
  
  
      /**
       * https://developers.google.com/youtube/iframe_api_reference#onError
       *
       * @param {Object} event
       *   @param {Integer} data  - error type
       *   @param {Object} target - player object
       */
  
  
      /**
       * https://developers.google.com/youtube/iframe_api_reference#onStateChange
       *
       * @param {Object} event
       *   @param {Integer} data  - status change type
       *   @param {Object} target - actual YT player
       */
  
  
      /**
       * https://developers.google.com/youtube/iframe_api_reference#onPlaybackRateChange
       *
       * @param {Object} event
       *   @param {Float} data    - playback rate
       *   @param {Object} target - actual YT player
       */
  
  
      /**
       * https://developers.google.com/youtube/iframe_api_reference#onPlaybackQualityChange
       *
       * @param {Object} event
       *   @param {String} data   - playback quality
       *   @param {Object} target - actual YT player
       */
  
  
      /**
       * Initialize the Youtube Player API on the container and attach event handlers
       */
  
  
      /**
       * Shorthand for destroying and then re-creating the Youtube Player
       */
  
  
      /**
       * Method to update the id and class of the Youtube Player iframe.
       * React should update this automatically but since the Youtube Player API
       * replaced the DIV that is mounted by React we need to do this manually.
       */
  
  
      /**
       * Call Youtube Player API methods to update the currently playing video.
       * Depeding on the `opts.playerVars.autoplay` this function uses one of two
       * Youtube Player API methods to update the video.
       */
  
    }, {
      key: 'render',
      value: function render() {
        return React.createElement(
          'span',
          null,
          React.createElement('div', { id: this.props.id, className: this.props.className, ref: this.refContainer })
        );
      }
    }]);
  
    return YouTube;
  }(React.Component);
  
  YouTube.propTypes = {
    videoId: PropTypes.string,
  
    // custom ID for player element
    id: PropTypes.string,
  
    // custom class name for player element
    className: PropTypes.string,
  
    // https://developers.google.com/youtube/iframe_api_reference#Loading_a_Video_Player
    opts: PropTypes.object,
  
    // event subscriptions
    onReady: PropTypes.func,
    onError: PropTypes.func,
    onPlay: PropTypes.func,
    onPause: PropTypes.func,
    onEnd: PropTypes.func,
    onStateChange: PropTypes.func,
    onPlaybackRateChange: PropTypes.func,
    onPlaybackQualityChange: PropTypes.func
  };
  YouTube.defaultProps = {
    opts: {},
    onReady: function onReady() {},
    onError: function onError() {},
    onPlay: function onPlay() {},
    onPause: function onPause() {},
    onEnd: function onEnd() {},
    onStateChange: function onStateChange() {},
    onPlaybackRateChange: function onPlaybackRateChange() {},
    onPlaybackQualityChange: function onPlaybackQualityChange() {}
  };
  YouTube.PlayerState = {
    UNSTARTED: -1,
    ENDED: 0,
    PLAYING: 1,
    PAUSED: 2,
    BUFFERING: 3,
    CUED: 5
  };
  
  
  export default YouTube;