pointerevent_mouse-pointer-preventdefault.html

<!DOCTYPE HTML>
<title>Effect of pointer event prevent-default on compat mouse event</title>
<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="../pointerevent_support.js"></script>
<style>
  div {
    margin: 20px;
    padding: 20px;
    background-color: green;
    user-select: none; // Prevents text selection on drag.
  }

</style>
<div id="preventer" draggable="false">
  <div id="logger" draggable="false"></div>
  <!-- The following div makes the center of "preventer" outside "logger", which
    simplifies TestDriver action coordinates below. -->
  <div></div>
</div>
<div id="done"></div>

<script>
  'use strict';

  const logger = document.getElementById("logger");
  const preventer = document.getElementById("preventer");
  const done = document.getElementById("done");

  const preventing_handler = e => e.preventDefault();

  let received_events = [];

  const logged_pointer_events = ["pointerdown", "pointermove", "pointerup",
    "pointerenter", "pointerleave", "pointerover", "pointerout"];
  const logged_mouse_events = ["mousedown", "mousemove", "mouseup",
    "mouseenter", "mouseleave", "mouseover", "mouseout"];

  const expected_pointer_events = [
    "pointerover", "pointerenter", "pointermove", "pointerdown",
    "pointerout", "pointerleave", "pointerover", "pointerenter",
    "pointermove", "pointerup", "pointerout", "pointerleave"
  ];

  const expected_mouse_events_when_unaffected_by_pointer_events = [
    "mouseover", "mouseenter", "mousemove", "mousedown",
    "mouseout", "mouseleave", "mouseover", "mouseenter",
    "mousemove", "mouseup", "mouseout", "mouseleave"
  ];

  const expected_mouse_events_for_canceled_pointerdown = [
    "mouseover", "mouseenter", "mousemove",
    "mouseout", "mouseleave", "mouseover", "mouseenter",
    "mouseout", "mouseleave"
  ];

  logged_pointer_events.forEach(ename =>
    logger.addEventListener(ename, e => received_events.push(e.type)));

  logged_mouse_events.forEach(ename =>
    logger.addEventListener(ename, e => received_events.push(e.type)));

  for (let i = 0; i < logged_pointer_events.length; i++) {
    let event_to_cancel = logged_pointer_events[i];

    promise_test(async (test) => {
      received_events = [];

      preventer.addEventListener(event_to_cancel, preventing_handler);
      test.add_cleanup(() =>
          preventer.removeEventListener(event_to_cancel, preventing_handler));

      let click_on_done = getEvent("click", done, test);

      let actions = new test_driver.Actions()
        // Start outside all event listeners
        .pointerMove(0, 0)
        .pointerDown()
        .pointerUp()
        // Drag from inside to outside of "logger" then drag back to inside,
        // staying within "preventer" all the time
        .pointerMove(0, 0, { origin: logger })
        .pointerDown()
        .pointerMove(0, 0, { origin: preventer })
        .pointerUp()
        .pointerDown()
        .pointerMove(0, 0, { origin: logger })
        .pointerUp()
        // Click "done"
        .pointerMove(0, 0, { origin: done })
        .pointerDown()
        .pointerUp()
        .send();

      await actions;
      await click_on_done;

      assert_array_equals(received_events.filter(isPointerEvent),
        expected_pointer_events, "expected pointer events");

      if (event_to_cancel == "pointerdown") {
        assert_array_equals(received_events.filter(isMouseEvent),
          expected_mouse_events_for_canceled_pointerdown,
          "expected mouse events");
      } else {
        assert_array_equals(received_events.filter(isMouseEvent),
          expected_mouse_events_when_unaffected_by_pointer_events,
          "expected mouse events");
        assert_true(arePointerEventsBeforeCompatMouseEvents(received_events),
          "compat mouse events follow corresponding pointer events");
      }
    }, `Effect of canceling ${event_to_cancel} on compat mouse events`);
  }
</script>
chromium/third_party/blink/web_tests/external/wpt/pointerevents/compat/pointerevent_mouse-pointer-preventdefault.html
