Add validation for SimpleDragHandler.interrupt, see phetsims/axon#208

phetsims · Jan 8, 2019 · c3c56b7 · c3c56b7
1 parent 5c93577
commit c3c56b7
Showing 1 changed file with 12 additions and 1 deletion.
diff --git a/js/input/SimpleDragHandler.js b/js/input/SimpleDragHandler.js
@@ -196,7 +196,18 @@ define( function( require ) {
       tandem: options.tandem.createTandem( 'dragEndedEmitter' ),
 
       // TODO: use of both of these is redundant, and should get fixed with https://github.com/phetsims/axon/issues/194
-      argumentTypes: [ { valueType: Vector2 }, { isValidValue: function( value ) { return value === null || value instanceof Event; } } ],
+      argumentTypes: [
+        { valueType: Vector2 },
+        {
+          isValidValue: function( value ) {
+            return value === null || value instanceof Event ||
+
+                   // When interrupted, an object literal is used to signify the interruption,
+                   // see SimpleDragHandler.interrupt
+                   ( value.pointer && value.currentTarget );
+          }
+        }
+      ],
       phetioType: EmitterIO(
         [ { name: 'point', type: Vector2IO, documentation: 'the position of the drag end in view coordinates' },
           { name: 'event', type: VoidIO, documentation: 'the scenery pointer Event' } ] ),