robustify pointing (#4238)

* robustify pointing * typo
google · Apr 21, 2023 · 6c8216b · 6c8216b
1 parent 6583b25
commit 6c8216b
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/packages/model-viewer/src/three-components/SmoothControls.ts b/packages/model-viewer/src/three-components/SmoothControls.ts
@@ -711,6 +711,12 @@ export class SmoothControls extends EventDispatcher {
       return;
     }
 
+    // In case no one gave us a pointerup or pointercancel event.
+    if (event.pointerType === 'mouse' && event.buttons === 0) {
+      this.onPointerUp(event);
+      return;
+    }
+
     const numTouches = this.pointers.length;
     const dx = (event.clientX - pointer.clientX) / numTouches;
     const dy = (event.clientY - pointer.clientY) / numTouches;