diff 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.

--- a/src/app/waveform/waveform.component.ts	Tue Mar 21 14:34:00 2017 +0000
+++ b/src/app/waveform/waveform.component.ts	Tue Mar 21 17:34:48 2017 +0000
@@ -56,6 +56,7 @@
   private initialZoom: number;
   private initialDistance: number;
   private zoomOnMouseDown: number;
+  private offsetOnMouseDown: number;
 
   constructor(private audioService: AudioPlayerService,
               private piperService: FeatureExtractionService,
@@ -639,10 +640,15 @@
 
   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);
     }
   }