114 lines
4.1 KiB
HTML
114 lines
4.1 KiB
HTML
<!DOCTYPE html>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="/resources/testdriver.js"></script>
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<script src="/resources/testdriver-vendor.js"></script>
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</head>
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<body>
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<iframe src="about:blank"></iframe>
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</body>
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<script>
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'use strict';
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promise_test(async (t) => {
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t.add_cleanup(async () => {
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await test_driver.clear_display_features();
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});
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// When the viewport is not divided the segments property should return an
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// array with one segment, the size of the viewport.
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assert_equals(viewport.segments.length, 1);
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let segment = viewport.segments[0];
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assert_equals(segment.x, 0);
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assert_equals(segment.y, 0);
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assert_equals(segment.width, window.innerWidth);
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assert_equals(segment.height, window.innerHeight);
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// iframes do not receive segments information.
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assert_equals(window.frames[0].viewport.segments, null);
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const displayFeatureLength = 10;
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const horizontalViewportSegmentsMQL = window.matchMedia('(horizontal-viewport-segments: 2)');
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let promise = new Promise(resolve => {
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horizontalViewportSegmentsMQL.addEventListener(
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'change',
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() => { resolve(horizontalViewportSegmentsMQL.matches); },
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{ once: true }
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);
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});
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const leftOffset =
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Math.round(window.innerWidth / 2 - displayFeatureLength / 2);
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await test_driver.set_display_features([{
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orientation: 'vertical',
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maskLength: displayFeatureLength,
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offset: leftOffset
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}]);
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assert_true(await promise);
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assert_equals(viewport.segments.length, 2);
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const segmentLeft = viewport.segments[0];
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const epsilon = 1;
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assert_equals(segmentLeft.x, 0);
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assert_equals(segmentLeft.y, 0);
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assert_approx_equals(segmentLeft.width, leftOffset, epsilon);
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assert_equals(segmentLeft.height, window.innerHeight);
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const segmentRight = viewport.segments[1];
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assert_approx_equals(segmentRight.x,
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Math.round(window.innerWidth / 2 + displayFeatureLength / 2), epsilon);
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assert_equals(segmentRight.y, 0);
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assert_approx_equals(segmentRight.width, leftOffset, epsilon);
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assert_equals(segmentRight.height, window.innerHeight);
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// iframes do not receive segments information.
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assert_equals(window.frames[0].viewport.segments, null);
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const verticalViewportSegmentsMQL = window.matchMedia('(vertical-viewport-segments: 2)');
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promise = new Promise(resolve => {
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verticalViewportSegmentsMQL.addEventListener(
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'change',
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() => { resolve(verticalViewportSegmentsMQL.matches); },
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{ once: true }
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);
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});
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const topOffset =
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Math.round(window.innerHeight / 2 - displayFeatureLength / 2);
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await test_driver.set_display_features([{
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orientation: 'horizontal',
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maskLength: displayFeatureLength,
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offset: topOffset
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}]);
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assert_true(await promise);
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assert_equals(viewport.segments.length, 2);
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const segmentTop = viewport.segments[0];
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assert_equals(segmentTop.x, 0);
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assert_equals(segmentTop.y, 0);
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assert_equals(segmentTop.width, window.innerWidth);
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assert_approx_equals(segmentTop.height, topOffset, epsilon);
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const segmentBottom = viewport.segments[1];
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assert_equals(segmentBottom.x, 0);
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assert_approx_equals(segmentBottom.y,
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Math.round(window.innerHeight / 2 + displayFeatureLength / 2), epsilon);
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assert_equals(segmentBottom.width, window.innerWidth);
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assert_approx_equals(segmentBottom.height, topOffset, epsilon);
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// iframes do not receive segments information.
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assert_equals(window.frames[0].viewport.segments, null);
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const oneSegmentMQL = window.matchMedia('(vertical-viewport-segments: 1)');
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promise = new Promise(resolve => {
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oneSegmentMQL.addEventListener(
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'change',
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() => { resolve(oneSegmentMQL.matches); },
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{ once: true }
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);
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});
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await test_driver.clear_display_features();
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assert_true(await promise);
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segment = viewport.segments[0];
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assert_equals(segment.x, 0);
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assert_equals(segment.y, 0);
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assert_equals(segment.width, window.innerWidth);
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assert_equals(segment.height, window.innerHeight);
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// iframes do not receive segments information.
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assert_equals(window.frames[0].viewport.segments, null);
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}, 'Tests the Viewport Segments Media Query change event handler.');
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</script>
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</html>
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