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<!DOCTYPE HTML>
<html>
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width; initial-scale=1.0">
  <title>Sanity mouse-clicking test</title>
  <script type="application/javascript" src="apz_test_native_event_utils.js"></script>
  <script type="application/javascript" src="apz_test_utils.js"></script>
  <script src="/tests/SimpleTest/paint_listener.js"></script>
  <script type="application/javascript">
async function clickButton() {
  let clickPromise = new Promise(resolve => {
    document.addEventListener("click", resolve);
  });
  if (getQueryArgs().dtc) {
    // force a dispatch-to-content region on the document
    document.addEventListener("wheel", function() { /* no-op */ }, { passive: false });
    await promiseAllPaintsDone();
    await promiseOnlyApzControllerFlushed();
  }
  await synthesizeNativeMouseEventWithAPZ(
    { type: "click", target: document.getElementById("b"), offsetX: 5, offsetY: 5 },
    () => dump("Finished synthesizing click, waiting for button to be clicked...\n")
  );
  let e = await clickPromise;
  is(e.target, document.getElementById("b"), "Clicked on button, yay! (at " + e.clientX + "," + e.clientY + ")");
}
waitUntilApzStable()
.then(clickButton)
.then(subtestDone, subtestFailed);
  </script>
</head>
<body>
 <button id="b" style="width: 10px; height: 10px"></button>
</body>
</html>