aom-scroll-page-action.html | Explore in Territory

<!DOCTYPE HTML>
<script src="../resources/gc.js"></script>
<script src="../resources/testharness.js"></script>
<script src="../resources/testharnessreport.js"></script>

<!--

Accessibility Object Model - synthesized keyboard events for user action events from Assistive Technology
Explainer: https://github.com/WICG/aom/blob/gh-pages/explainer.md#user-action-events-from-assistive-technology
Spec: https://wicg.github.io/aom/spec/

-->
<script>
test(function(t) {
  assert_true(internals.runtimeFlags.synthesizedKeyboardEventsForAccessibilityActionsEnabled);
}, "Make sure that keyboard event synthesis is enabled");
</script>

<input id="text" style="margin-top: 10000px;">

<script>
// Traverse ancestors up until reaching web document node, which is the one
// exposing the scroll accessibility actions.
let axDocument = accessibilityController.accessibleElementById("text");
while (axDocument.role != "AXRole: AXRootWebArea")
  axDocument = axDocument.parentElement();

promise_test(function(t) {
  let oldY;
  return new Promise(resolve => {
    window.addEventListener('keydown', resolve);
    oldY = window.pageYOffset;
    axDocument.scrollDown();
  }).then(event => {
    assert_equals(event.type, "keydown");
    assert_equals(event.keyCode, 34); // 34 = page down key
    assert_true(window.pageYOffset > oldY);
  });
}, "Test for synthesized keydown event in scroll down action");

promise_test(function(t) {
  let oldY;
  return new Promise(resolve => {
    window.addEventListener('keyup', resolve);
    oldY = window.pageYOffset;
    axDocument.scrollDown();
  }).then(event => {
    assert_equals(event.type, "keyup");
    assert_equals(event.keyCode, 34); // 34 = page down key
    assert_true(window.pageYOffset > oldY);
  });
}, "Test for synthesized keyup event in scroll down action");

promise_test(function(t) {
  let oldY;
  return new Promise(resolve => {
    window.addEventListener('keydown', resolve);
    oldY = window.pageYOffset;
    axDocument.scrollUp();
  }).then(event => {
    assert_equals(event.type, "keydown");
    assert_equals(event.keyCode, 33); // 33 = page up key
    assert_true(window.pageYOffset < oldY);
  });
}, "Test for synthesized keydown event in scroll up action");

promise_test(function(t) {
  let oldY;
  return new Promise(resolve => {
    window.addEventListener('keyup', resolve);
    oldY = window.pageYOffset;
    axDocument.scrollUp();
  }).then(event => {
    assert_equals(event.type, "keyup");
    assert_equals(event.keyCode, 33); // 33 = page up key
    assert_true(window.pageYOffset < oldY);
  });
}, "Test for synthesized keyup event in scroll up action");
</script>
chromium/third_party/blink/web_tests/accessibility/aom-scroll-page-action.html
