pointer-suppression.html

Enable keyboard shortcuts

This test has a WPT meta file that expects 1 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /html/editing/dnd/events/pointer-suppression.html - WPT Dashboard Interop Dashboard

<!doctype html>

<link rel="help" href="https://w3c.github.io/pointerevents/#suppressing-a-pointer-event-stream">

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<script src="/resources/testdriver.js"></script>

<script src="/resources/testdriver-vendor.js"></script>

<script src="/resources/testdriver-actions.js"></script>

<script src="../resources/test-helper.js"></script>

<head>

  <title>The UA correctly suppresses the pointer event stream after a drag starts</title>

  <style type="text/css">

    div {

      width: 105px;

      min-height: 105px;

  </style>

</head>

<body>

  <p><img src="../resources/circle.png" alt="PNG circle"/></p>

  <div></div>

  <script>

    promise_test(async (t) => {

        await new Promise(loaded => window.addEventListener("load", loaded));

        const img = document.querySelector('img');

        let pointerCancelCalled = false;

        let pointerOutCalled = false;

        let pointerLeftCalled = false;

        img.addEventListener('pointercancel', _ => { pointerCancelCalled = true; });

        img.addEventListener('pointerout', _ => { pointerOutCalled = true; });

        img.addEventListener('pointerleave', _ => { pointerLeftCalled = true; });

        const dragLeavePromise = new Promise(resolve => {

          img.addEventListener('dragleave', t.step_func((event) => {

            assert_true(pointerCancelCalled, 'pointercancel should have been called after dragstart:');

            assert_true(pointerOutCalled, 'pointerout should have been called after dragstart:');

            assert_true(pointerLeftCalled, 'pointerleave should have been called after dragstart:');

            resolve();

          }));

});

        // First move the pointer enough that a drag is initiated but the pointer remains

        // over the image. Then move the pointer to the div to trigger the dragleave.

        await new test_driver.Actions()

          .pointerMove(-20, -20, { origin: img })

          .pointerDown()

          .pointerMove(20, 20, { origin: img })

          .pointerMove(0, 0, { origin: document.querySelector('div') })

          .send();

        await dragLeavePromise;

},

      "verify that the pointer events stream is correctly suppressed when a drag starts");

  </script>

</body>

</html>