wotnot-video-react/lib/components/control-bar/ClosedCaptionButton.js

Video-React is a web video player built from the ground up for an HTML5 world using React library.

"use strict";

var _interopRequireWildcard = require("@babel/runtime/helpers/interopRequireWildcard");

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));

var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));

var _assertThisInitialized2 = _interopRequireDefault(require("@babel/runtime/helpers/assertThisInitialized"));

var _inherits2 = _interopRequireDefault(require("@babel/runtime/helpers/inherits"));

var _possibleConstructorReturn2 = _interopRequireDefault(require("@babel/runtime/helpers/possibleConstructorReturn"));

var _getPrototypeOf2 = _interopRequireDefault(require("@babel/runtime/helpers/getPrototypeOf"));

var _propTypes = _interopRequireDefault(require("prop-types"));

var _react = _interopRequireWildcard(require("react"));

var _classnames = _interopRequireDefault(require("classnames"));

var _MenuButton = _interopRequireDefault(require("../menu/MenuButton"));

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Date.prototype.toString.call(Reflect.construct(Date, [], function () {})); return true; } catch (e) { return false; } }

var propTypes = {
  player: _propTypes["default"].object,
  actions: _propTypes["default"].object,
  className: _propTypes["default"].string,
  offMenuText: _propTypes["default"].string,
  showOffMenu: _propTypes["default"].bool,
  kinds: _propTypes["default"].array
};
var defaultProps = {
  offMenuText: 'Off',
  showOffMenu: true,
  kinds: ['captions', 'subtitles'] // `kind`s of TextTrack to look for to associate it with this menu.

};

var ClosedCaptionButton = /*#__PURE__*/function (_Component) {
  (0, _inherits2["default"])(ClosedCaptionButton, _Component);

  var _super = _createSuper(ClosedCaptionButton);

  function ClosedCaptionButton(props, context) {
    var _this;

    (0, _classCallCheck2["default"])(this, ClosedCaptionButton);
    _this = _super.call(this, props, context);
    _this.getTextTrackItems = _this.getTextTrackItems.bind((0, _assertThisInitialized2["default"])(_this));
    _this.updateState = _this.updateState.bind((0, _assertThisInitialized2["default"])(_this));
    _this.handleSelectItem = _this.handleSelectItem.bind((0, _assertThisInitialized2["default"])(_this));
    _this.state = _this.getTextTrackItems();
    return _this;
  }

  (0, _createClass2["default"])(ClosedCaptionButton, [{
    key: "componentDidUpdate",
    value: function componentDidUpdate() {
      this.updateState();
    }
  }, {
    key: "getTextTrackItems",
    value: function getTextTrackItems() {
      var _this$props = this.props,
          kinds = _this$props.kinds,
          player = _this$props.player,
          offMenuText = _this$props.offMenuText,
          showOffMenu = _this$props.showOffMenu;
      var textTracks = player.textTracks,
          activeTextTrack = player.activeTextTrack;
      var textTrackItems = {
        items: [],
        selectedIndex: 0
      };
      var tracks = Array.from(textTracks || []);

      if (tracks.length === 0) {
        return textTrackItems;
      }

      if (showOffMenu) {
        textTrackItems.items.push({
          label: offMenuText || 'Off',
          value: null
        });
      }

      tracks.forEach(function (textTrack) {
        // ignore invalid text track kind
        if (kinds.length && !kinds.includes(textTrack.kind)) {
          return;
        }

        textTrackItems.items.push({
          label: textTrack.label,
          value: textTrack.language
        });
      });
      textTrackItems.selectedIndex = textTrackItems.items.findIndex(function (item) {
        return activeTextTrack && activeTextTrack.language === item.value;
      });

      if (textTrackItems.selectedIndex === -1) {
        textTrackItems.selectedIndex = 0;
      }

      return textTrackItems;
    }
  }, {
    key: "updateState",
    value: function updateState() {
      var textTrackItems = this.getTextTrackItems();

      if (textTrackItems.selectedIndex !== this.state.selectedIndex || !this.textTrackItemsAreEqual(textTrackItems.items, this.state.items)) {
        this.setState(textTrackItems);
      }
    }
  }, {
    key: "textTrackItemsAreEqual",
    value: function textTrackItemsAreEqual(items1, items2) {
      if (items1.length !== items2.length) {
        return false;
      }

      for (var i = 0; i < items1.length; i++) {
        if (!items2[i] || items1[i].label !== items2[i].label || items1[i].value !== items2[i].value) {
          return false;
        }
      }

      return true;
    }
  }, {
    key: "handleSelectItem",
    value: function handleSelectItem(index) {
      var _this$props2 = this.props,
          player = _this$props2.player,
          actions = _this$props2.actions,
          showOffMenu = _this$props2.showOffMenu;
      var textTracks = player.textTracks; // For the 'subtitles-off' button, the first condition will never match
      // so all subtitles will be turned off

      Array.from(textTracks).forEach(function (textTrack, i) {
        // if it shows the `Off` menu, the first item is `Off`
        if (index === (showOffMenu ? i + 1 : i)) {
          textTrack.mode = 'showing';
          actions.activateTextTrack(textTrack);
        } else {
          textTrack.mode = 'hidden';
        }
      });
    }
  }, {
    key: "render",
    value: function render() {
      var _this$state = this.state,
          items = _this$state.items,
          selectedIndex = _this$state.selectedIndex;
      return /*#__PURE__*/_react["default"].createElement(_MenuButton["default"], {
        className: (0, _classnames["default"])('video-react-closed-caption', this.props.className),
        onSelectItem: this.handleSelectItem,
        items: items,
        selectedIndex: selectedIndex
      }, /*#__PURE__*/_react["default"].createElement("span", {
        className: "video-react-control-text"
      }, "Closed Caption"));
    }
  }]);
  return ClosedCaptionButton;
}(_react.Component);

ClosedCaptionButton.propTypes = propTypes;
ClosedCaptionButton.defaultProps = defaultProps;
ClosedCaptionButton.displayName = 'ClosedCaptionButton';
var _default = ClosedCaptionButton;
exports["default"] = _default;