text: /*
  Copyright 2017, 2018 New Vector Ltd
  Copyright 2019 The Matrix.org Foundation C.I.C.
  
  Licensed under the Apache License, Version 2.0 (the "License");
  you may not use this file except in compliance with the License.
  You may obtain a copy of the License at
  
      http://www.apache.org/licenses/LICENSE-2.0
  
  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License.
  */
  
  import React from 'react';
  import PropTypes from 'prop-types';
  import createReactClass from 'create-react-class';
  import RoomViewStore from '../../../stores/RoomViewStore';
  import CallHandler from '../../../CallHandler';
  import dis from '../../../dispatcher/dispatcher';
  import * as sdk from '../../../index';
  
  export default createReactClass({
      displayName: 'CallPreview',
  
      propTypes: {
          // A Conference Handler implementation
          // Must have a function signature:
          //  getConferenceCallForRoom(roomId: string): MatrixCall
          ConferenceHandler: PropTypes.object,
      },
  
      getInitialState: function() {
          return {
              roomId: RoomViewStore.getRoomId(),
              activeCall: CallHandler.getAnyActiveCall(),
          };
      },
  
      componentDidMount: function() {
          this._roomStoreToken = RoomViewStore.addListener(this._onRoomViewStoreUpdate);
          this.dispatcherRef = dis.register(this._onAction);
      },
  
      componentWillUnmount: function() {
          if (this._roomStoreToken) {
              this._roomStoreToken.remove();
          }
          dis.unregister(this.dispatcherRef);
      },
  
      _onRoomViewStoreUpdate: function(payload) {
          if (RoomViewStore.getRoomId() === this.state.roomId) return;
          this.setState({
              roomId: RoomViewStore.getRoomId(),
          });
      },
  
      _onAction: function(payload) {
          switch (payload.action) {
              // listen for call state changes to prod the render method, which
              // may hide the global CallView if the call it is tracking is dead
              case 'call_state':
                  this.setState({
                      activeCall: CallHandler.getAnyActiveCall(),
                  });
                  break;
          }
      },
  
      _onCallViewClick: function() {
          const call = CallHandler.getAnyActiveCall();
          if (call) {
              dis.dispatch({
                  action: 'view_room',
                  room_id: call.groupRoomId || call.roomId,
              });
          }
      },
  
      render: function() {
          const callForRoom = CallHandler.getCallForRoom(this.state.roomId);
          const showCall = (this.state.activeCall && this.state.activeCall.call_state === 'connected' && !callForRoom);
  
          if (showCall) {
              const CallView = sdk.getComponent('voip.CallView');
              return (
                  <CallView
                      className="mx_LeftPanel_callView" showVoice={true} onClick={this._onCallViewClick}
                      ConferenceHandler={this.props.ConferenceHandler}
                  />
              );
          }
          const PersistentApp = sdk.getComponent('elements.PersistentApp');
          return <PersistentApp />;
      },
  });
  
  