51 lines
1.8 KiB
HTML
51 lines
1.8 KiB
HTML
<!DOCTYPE html>
|
|
<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>
|
|
'use strict';
|
|
|
|
promise_test(async (t) => {
|
|
t.add_cleanup(async () => {
|
|
await test_driver.clear_display_features();
|
|
});
|
|
|
|
// There is always one segment the dimension of the viewport.
|
|
assert_true(matchMedia('(horizontal-viewport-segments: 1)').matches);
|
|
assert_true(matchMedia('(vertical-viewport-segments: 1)').matches);
|
|
|
|
assert_false(matchMedia('(horizontal-viewport-segments: 2)').matches);
|
|
assert_false(matchMedia('(vertical-viewport-segments: 2)').matches);
|
|
|
|
const horizontalViewportSegmentsMQL = window.matchMedia('(horizontal-viewport-segments: 2)');
|
|
const verticalViewportSegmentsMQL = window.matchMedia('(vertical-viewport-segments: 2)');
|
|
let promise = new Promise(resolve => {
|
|
horizontalViewportSegmentsMQL.addEventListener(
|
|
'change',
|
|
() => { resolve(horizontalViewportSegmentsMQL.matches); },
|
|
{ once: true }
|
|
);
|
|
});
|
|
await test_driver.set_display_features([{
|
|
orientation: 'vertical', maskLength: 20, offset: 20
|
|
}]);
|
|
assert_true(await promise, 'The horizontal viewport segments media query should match.');
|
|
|
|
promise = new Promise(resolve => {
|
|
verticalViewportSegmentsMQL.addEventListener(
|
|
'change',
|
|
() => { resolve(verticalViewportSegmentsMQL.matches); },
|
|
{ once: true }
|
|
);
|
|
});
|
|
await test_driver.set_display_features([{
|
|
orientation: 'horizontal', maskLength: 20, offset: 20
|
|
}]);
|
|
assert_true(await promise, 'The vertical viewport segments media query should match.');
|
|
}, 'Tests the Viewport Segments Media Query change event handler.');
|
|
</script>
|
|
</head>
|
|
<body>
|
|
</body>
|
|
</html>
|