comparison src/app/waveform/waveform.component.ts @ 157:3f54066a0e01

Prevent seeking when panning with mouse. There's still potential for this approach to go wrong, for both zooming and panning. During the duration of the click, if the offset or zoom are returned to the starting position, the mouse will seek to its current x position.

   private isPlaying: boolean;
   private offsetAtPanStart: number;
   private initialZoom: number;
   private initialDistance: number;
   private zoomOnMouseDown: number;
+  private offsetOnMouseDown: number;
 
   constructor(private audioService: AudioPlayerService,
               private piperService: FeatureExtractionService,
               public ngZone: NgZone) {
     this._audioBuffer = undefined;

     this.seekedSubscription.unsubscribe();
   }
 
   seekStart(): void {
     this.zoomOnMouseDown = this.timeline.timeContext.zoom;
+    this.offsetOnMouseDown = this.timeline.timeContext.offset;
   }
 
   seekEnd(x: number): void {
-    if (this.zoomOnMouseDown === this.timeline.timeContext.zoom) {
+    const hasSameZoom: boolean = this.zoomOnMouseDown ===
+      this.timeline.timeContext.zoom;
+    const hasSameOffset: boolean = this.offsetOnMouseDown ===
+      this.timeline.timeContext.offset;
+    if (hasSameZoom && hasSameOffset) {
       this.seek(x);
     }
   }
 
   seek(x: number): void {