Unregister from the dispatcher in CallHandler

otherwise you end up getting multiple place_call dispatches if you place a call after logging in

Author: dbkr

src/CallHandler.tsx

@@ -118,6 +118,7 @@ function getRemoteAudioElement(): HTMLAudioElement {
 export default class CallHandler {
  private calls = new Map<string, MatrixCall>(); // roomId -> call
  private audioPromises = new Map<AudioID, Promise<void>>();
+ private dispatcherRef: string;
 
  static sharedInstance() {
  if (!window.mxCallHandler) {
@@ -128,7 +129,7 @@ export default class CallHandler {
  }
 
  start() {
- dis.register(this.onAction);
+ this.dispatcherRef = dis.register(this.onAction);
  // add empty handlers for media actions, otherwise the media keys
  // end up causing the audio elements with our ring/ringback etc
  // audio clips in to play.
@@ -151,6 +152,7 @@ export default class CallHandler {
  if (cli) {
  cli.removeListener('Call.incoming', this.onCallIncoming);
  }
+ if (this.dispatcherRef) dis.unregister(this.dispatcherRef);
  }
 
  private onCallIncoming = (call) => {