File: capture-controller-oncapturedmousechange.https.html

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<!doctype html>
<meta charset=utf-8>
<link rel='help' href='https://screen-share.github.io/captured-mouse-events/#capture-controller-extensions'>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
  test(() => {
      const controller = new CaptureController();
      assert_equals(controller.oncapturedmousechange, null);
  }, "oncapturedmousechange is initially unset");

  test(() => {
      const controller = new CaptureController();
      let result = undefined;
      controller.oncapturedmousechange = (e) => {
          result = {
              target: e.currentTarget,
              surfaceX: e.surfaceX,
              surfaceY: e.surfaceY,
          };
      };
      const init = {surfaceX: 5, surfaceY: 7};
      controller.dispatchEvent(
          new CapturedMouseEvent("capturedmousechange", init)
      );
      assert_equals(result.target, controller);
      assert_equals(result.surfaceX, init.surfaceX);
      assert_equals(result.surfaceY, init.surfaceY);
  }, "dispatching a CapturedMouseEvent on CaptureController should trigger oncapturedmousechange");
</script>