No-op on drag with non-pressed drag/press listener, see phetsims/vect…

…or-addition#281
phetsims · Jul 17, 2024 · ec4a0e1 · ec4a0e1
1 parent bb836b6
commit ec4a0e1
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Showing 2 changed files with 9 additions and 1 deletion.
diff --git a/js/listeners/DragListener.ts b/js/listeners/DragListener.ts
@@ -413,6 +413,11 @@ export default class DragListener extends PressListener implements TInputListene
       return;
     }
 
+    // If we got interrupted while events were queued up, we MAY get a drag when not pressed. We can ignore this.
+    if ( !this.isPressed ) {
+      return;
+    }
+
     sceneryLog && sceneryLog.InputListener && sceneryLog.InputListener( 'DragListener drag' );
     sceneryLog && sceneryLog.InputListener && sceneryLog.push();
 

diff --git a/js/listeners/PressListener.ts b/js/listeners/PressListener.ts
@@ -525,7 +525,10 @@ export default class PressListener extends EnabledComponent implements TInputLis
     sceneryLog && sceneryLog.InputListener && sceneryLog.InputListener( `PressListener#${this._id} drag` );
     sceneryLog && sceneryLog.InputListener && sceneryLog.push();
 
-    assert && assert( this.isPressed, 'Can only drag while pressed' );
+    // If we got interrupted while events were queued up, we MAY get a drag when not pressed. We can ignore this.
+    if ( !this.isPressed ) {
+      return;
+    }
 
     this._dragListener( event, this );