Revision 4f06a45252465792447f80b6559b17c4c4e9712c authored by Daniel Vogelheim on 10 April 2018, 13:07:39 UTC, committed by Chromium WPT Sync on 10 April 2018, 13:07:39 UTC
Allow control of the deprecation via runtime enabled features, with a first
step for logging a warning to the console, and the second step to block it
outright.

Intent:  https://groups.google.com/a/chromium.org/d/msg/blink-dev/35t5cJQ3J_Q/FH45dl0vAwAJ

Change-Id: I1be1001cbbef152458119b1516750bb4f1d1e4de
Reviewed-on: https://chromium-review.googlesource.com/975611
Commit-Queue: Daniel Vogelheim <vogelheim@chromium.org>
Reviewed-by: Mike West <mkwst@chromium.org>
Cr-Commit-Position: refs/heads/master@{#549495}
1 parent 069680c
Raw File
onchange-event.html
<!DOCTYPE html>
<html>
<body>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>

var changeTest = async_test("Test that orientationchange event is fired when the orientation changes.");
var noChangeTest = async_test("Test that orientationchange event is not fired when the orientation does not change.");

var orientations = [
  'portrait-primary',
  'portrait-secondary',
  'landscape-primary',
  'landscape-secondary'
];

var currentIndex = orientations.indexOf(window.screen.orientation.type);
// Count the number of calls received from the EventHandler set on screen.orientation.onchange.
var orientationChangeEventHandlerCalls = 0;
// Count the number of calls received from the listener set with screen.orientation.addEventListene().
var orientationChangeEventListenerCalls = 0;

var orientationChangeContinuation = null;

function getNextIndex() {
  return (currentIndex + 1) % orientations.length;
}

window.screen.orientation.onchange = function() {
  orientationChangeEventHandlerCalls++;
  if (orientationChangeEventContinuation) {
    setTimeout(orientationChangeEventContinuation);
    orientationChangeEventContinuation = null;
  }
};

window.screen.orientation.addEventListener('change', function() {
  orientationChangeEventListenerCalls++;
});

function runNoChangeTest() {
  screen.orientation.lock(orientations[currentIndex]).then(function() {}, function() {});

  noChangeTest.step(function() {
    assert_equals(screen.orientation.type, orientations[currentIndex]);
    assert_equals(orientationChangeEventHandlerCalls, orientations.length);
    assert_equals(orientationChangeEventListenerCalls, orientations.length);
  });

  noChangeTest.done();
}

var i = 0;
function runChangeTest() {
  screen.orientation.lock(orientations[getNextIndex()]).then(function() {}, function() {});
  currentIndex = getNextIndex();

  orientationChangeEventContinuation = function() {
    changeTest.step(function() {
      assert_equals(screen.orientation.type, orientations[currentIndex]);
      assert_equals(orientationChangeEventHandlerCalls, i + 1);
      assert_equals(orientationChangeEventListenerCalls, i + 1);
    });

    ++i;
    if (i == orientations.length) {
      changeTest.done();
      runNoChangeTest();
    } else {
      runChangeTest();
    }
  };
}

runChangeTest();

</script>
</body>
</html>
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