scrollend-user-scroll-common.js

Enable keyboard shortcuts

async function test_scrollend_on_touch_drag(t, target_div) {

  // Skip the test on a Mac as they do not support touch screens.

  const isMac = navigator.platform.toUpperCase().indexOf('MAC') >= 0;

  if (isMac)

    return;

  await resetTargetScrollState(t, target_div);

  await waitForCompositorReady();

  const targetScrollendPromise = waitForScrollendEventNoTimeout(target_div);

  verifyNoScrollendOnDocument(t);

  let scrollend_count = 0;

  const scrollend_listener = () => {

    scrollend_count += 1;

};

  target_div.addEventListener("scrollend", scrollend_listener);

  t.add_cleanup(() => {

    target_div.removeEventListener('scrollend', scrollend_listener);

});

  // Perform a touch drag on target div and wait for target_div to get

  // a scrollend event.

  await new test_driver.Actions()

    .addPointer('TestPointer', 'touch')

    .pointerMove(0, 0, { origin: target_div }) // 0, 0 is center of element.

    .pointerDown()

    .addTick()

    .pointerMove(0, -40, { origin: target_div }) //  Drag up to move down.

    .addTick()

    .pause(200) //  Prevent inertial scroll.

    .pointerMove(0, -60, { origin: target_div })

    .addTick()

    .pause(200) //  Prevent inertial scroll.

    .pointerUp()

    .send();

  await targetScrollendPromise;

  assert_true(target_div.scrollTop > 0);

  await verifyScrollStopped(t, target_div);

  assert_equals(scrollend_count, 1);

async function test_scrollend_on_scrollbar_gutter_click(t, target_div) {

  // Skip test on platforms that do not have a visible scrollbar (e.g.

  // overlay scrollbar).

  const scrollbar_width = target_div.offsetWidth - target_div.clientWidth;

  if (scrollbar_width == 0)

    return;

  await resetTargetScrollState(t, target_div);

  await waitForCompositorReady();

  const targetScrollendPromise = waitForScrollendEventNoTimeout(target_div);

  verifyNoScrollendOnDocument(t);

  const bounds = target_div.getBoundingClientRect();

  // Some versions of webdriver have been known to frown at non-int arguments

  // to pointerMove.

  const x = bounds.right - Math.round(scrollbar_width / 2);

  const y = bounds.bottom - 20;

  await new test_driver.Actions()

    .addPointer('TestPointer', 'mouse')

    .pointerMove(x, y, { origin: 'viewport' })

    .pointerDown()

    .addTick()

    .pointerUp()

    .send();

  await targetScrollendPromise;

  assert_true(target_div.scrollTop > 0);

  await verifyScrollStopped(t, target_div);

// Same issue as previous test.

async function test_scrollend_on_scrollbar_thumb_drag(t, target_div) {

  // Skip test on platforms that do not have a visible scrollbar (e.g.

  // overlay scrollbar).

  const scrollbar_width = target_div.offsetWidth - target_div.clientWidth;

  if (scrollbar_width == 0)

    return;

  await resetTargetScrollState(t, target_div);

  await waitForCompositorReady();

  const targetScrollendPromise = waitForScrollendEventNoTimeout(target_div);

  verifyNoScrollendOnDocument(t);

  const bounds = target_div.getBoundingClientRect();

  // Some versions of webdriver have been known to frown at non-int arguments

  // to pointerMove.

  const x = bounds.right - Math.round(scrollbar_width / 2);

  const y = bounds.top + 30;

  const dy = 30;

  await new test_driver.Actions()

    .addPointer('TestPointer', 'mouse')

    .pointerMove(x, y, { origin: 'viewport' })

    .pointerDown()

    .pointerMove(x, y + dy, { origin: 'viewport' })

    .addTick()

    .pointerUp()

    .send();

  await targetScrollendPromise;

  assert_true(target_div.scrollTop > 0);

  await verifyScrollStopped(t, target_div);

async function test_scrollend_on_mousewheel_scroll(t, target_div) {

  await resetTargetScrollState(t, target_div);

  await waitForCompositorReady();

  const targetScrollendPromise = waitForScrollendEventNoTimeout(target_div);

  verifyNoScrollendOnDocument(t);

  const x = 0;

  const y = 0;

  const dx = 0;

  const dy = 40;

  const duration_ms = 10;

  await new test_driver.Actions()

    .scroll(x, y, dx, dy, { origin: target_div }, duration_ms)

    .send();

  await targetScrollendPromise;

  assert_true(target_div.scrollTop > 0);

  await verifyScrollStopped(t, target_div);

async function test_scrollend_on_keyboard_scroll(t, target_div) {

  await resetTargetScrollState(t, target_div);

  await waitForCompositorReady();

  verifyNoScrollendOnDocument(t);

  const targetScrollendPromise = waitForScrollendEventNoTimeout(target_div);

  target_div.focus();

  window.test_driver.send_keys(target_div, '\ue015');

  await targetScrollendPromise;

  assert_true(target_div.scrollTop > 0);

  await verifyScrollStopped(t, target_div);