fix(imgui): touch event handling (FF/Safari)

thi-ng · Aug 6, 2019 · af697d9 · af697d9
1 parent 588a321
commit af697d9
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/packages/imgui/src/gui.ts b/packages/imgui/src/gui.ts
@@ -187,6 +187,8 @@ export class IMGUI implements IToHiccup {
 
 const setMouse = (e: MouseEvent | TouchEvent, mouse: Vec) => {
     const b = (<HTMLCanvasElement>e.target).getBoundingClientRect();
-    const t = e instanceof TouchEvent ? e.touches[0] : e;
+    const t = (<TouchEvent>e).changedTouches
+        ? (<TouchEvent>e).changedTouches[0]
+        : <MouseEvent>e;
     setC2(mouse, t.clientX - b.left, t.clientY - b.top);
 };