pointerevent_boundary_events_in_capturing.html

<!doctype html>
<html>
    <head>
        <title>Pointer Events boundary events in capturing tests</title>
        <meta name="viewport" content="width=device-width">
        <meta name="variant" content="?mouse">
        <meta name="variant" content="?touch">
        <meta name="variant" content="?pen">
        <link rel="stylesheet" type="text/css" href="pointerevent_styles.css">
        <script src="/resources/testharness.js"></script>
        <script src="/resources/testharnessreport.js"></script>
        <script src="/resources/testdriver.js"></script>
        <script src="/resources/testdriver-actions.js"></script>
        <script src="/resources/testdriver-vendor.js"></script>
        <script src="pointerevent_support.js"></script>
    </head>
    <body>
        <h1>Pointer Events boundary events in capturing</h1>
        <h2 id="pointerTypeDescription"></h2>
        <h4 id="desc">
            This automated test checks the boundary events of pointer events while the capturing
            changes. This test cannot be run manually.
        </h4>
        <div id="target0" class="touchActionNone"></div>
        <div id="capturer">Do not hover over or touch this element.</div>
        <div id="log"></div>
    </body>
    <script>
      let input_source = location.search.substring(1);

      let events_received = [];
      let log_events = false;

      // The events are handled as follows:
      // - When "target0" receives a "pointerdown", the pointer is captured to "capturer" and event
      //   logging starts.
      // - During event logging, all boundary events and "got/lostpointercapture" events to both
      //   "target0" and "capturer" are logged.
      // - The first "pointermove" at "capturer" releases the pointer capture, so that subsequent
      //   "pointermove"/"pointerup" events go to "target0".
      // - Event logging ends when "target0" receives a "pointerup".

      function logEvent(event, element) {
          if (log_events)
              events_received.push(event.type + "@" + element.id);
      }

      let target0 = document.getElementById("target0");
      let capturer = document.getElementById("capturer");

      target0.addEventListener("pointerdown", event => {
          capturer.setPointerCapture(event.pointerId);
      });

      capturer.addEventListener("pointermove", event => {
          if (capturer.hasPointerCapture(event.pointerId))
              capturer.releasePointerCapture(event.pointerId);
      });

      let other_event_types = [ "pointercancel",
                                "pointerover", "pointerout", "pointerenter", "pointerleave",
                                "gotpointercapture", "lostpointercapture" ];
      other_event_types.forEach(event_name => {
          [target0, capturer].forEach(target => {
              target.addEventListener(event_name, event => logEvent(event, target));
          });
      });

      promise_test(async () => {
          // Start logging events after the pointerdown in the drag.
          getEvent("pointerdown", target0).then(() => {
              log_events = true;
          });

          let pointerup_promise = getEvent("pointerup", target0);
          pointerup_promise.then(() => {
              log_events = false;
          });

          await pointerDragInTarget(input_source, target0, "right");

          // Wait for all events in the drag to have been dispatched.
          await pointerup_promise;

          const expected_events = [
              "pointerout@target0", "pointerleave@target0",
              "pointerover@capturer", "pointerenter@capturer",
              "gotpointercapture@capturer",
              "lostpointercapture@capturer",
              "pointerout@capturer", "pointerleave@capturer",
              "pointerover@target0", "pointerenter@target0"
          ];
          assert_array_equals(events_received, expected_events);

          updateDescriptionComplete();
      }, "Boundary events around pointer capture and release");
    </script>
</html>
chromium/third_party/blink/web_tests/external/wpt/pointerevents/pointerevent_boundary_events_in_capturing.html
