[PointerLock] Add null check before dispatching click event

BUG=706802 Review-Url: https://codereview.chromium.org/2846993002 Cr-Commit-Position: refs/heads/master@{#469510}
web-platform-tests · May 5, 2017 · adc02b4 · adc02b4
1 parent f94efaa
commit adc02b4
Showing 1 changed file with 20 additions and 0 deletions.
diff --git a/pointerlock/pointerlock_remove_target_on_mouseup-manual.html b/pointerlock/pointerlock_remove_target_on_mouseup-manual.html
@@ -0,0 +1,20 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>Remove PointerLock target on mouseup</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<p>Click anywhere to run the test. If a "PASS" result appears the test passes, otherwise it fails</p>
+<div id="target"></div>
+<script>
+async_test(t => {
+    const target = document.getElementById('target');
+    document.addEventListener('mousedown', t.step_func(() => {
+        target.requestPointerLock();
+        document.addEventListener('mouseup', t.step_func(() => {
+            target.remove();
+            assert_true(document.pointerLockElement === null, 'Pointer lock exited!');
+            t.done();
+        }));
+    }));
+})
+</script>