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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
| commit | 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch) | |
| tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /testing/web-platform/tests/element-timing/image-with-rotation.html | |
| parent | Initial commit. (diff) | |
| download | thunderbird-upstream.tar.xz thunderbird-upstream.zip | |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'testing/web-platform/tests/element-timing/image-with-rotation.html')
| -rw-r--r-- | testing/web-platform/tests/element-timing/image-with-rotation.html | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/testing/web-platform/tests/element-timing/image-with-rotation.html b/testing/web-platform/tests/element-timing/image-with-rotation.html new file mode 100644 index 0000000000..229e9ae96c --- /dev/null +++ b/testing/web-platform/tests/element-timing/image-with-rotation.html @@ -0,0 +1,50 @@ +<!DOCTYPE HTML> +<meta charset=utf-8> +<title>Element Timing: image with rotation.</title> +<head> +<style> +body { + margin: 0px; +} +.my_div { + width: 100px; + height: 50px; + transform: rotate(45deg); + transform-origin: top left; +} +</style> +</head> +<body> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<script src="resources/element-timing-helpers.js"></script> +<script> + const beforeRender = performance.now(); + async_test(function (t) { + assert_implements(window.PerformanceElementTiming, "PerformanceElementTiming is not implemented"); + const observer = new PerformanceObserver( + t.step_func_done(function(entryList) { + assert_equals(entryList.getEntries().length, 1); + const entry = entryList.getEntries()[0]; + const pathname = window.location.origin + '/images/black-rectangle.png'; + checkElement(entry, pathname, 'rectangle', 'rect_id', beforeRender, + document.getElementById('rect_id')); + checkNaturalSize(entry, 100, 50); + const rect = entry.intersectionRect; + // The div rotates with respect to the origin, so part of it will be invisible. + // The width of the visible part will be 100 / sqrt(2) and the height will be + // 100 / sqrt(2) + 50 / sqrt(2). + assert_equals(rect.left, 0); + // Checking precision only to the nearest integer. + assert_equals(Math.round(rect.right), 71); + assert_equals(rect.top, 0); + assert_equals(Math.round(rect.bottom), 106); + }) + ); + observer.observe({entryTypes: ['element']}); + }, 'Image intersectionRect is affected by rotation, but not its intrinsic size.'); +</script> +<div class="my_div" id="div_id"> + <img src="/images/black-rectangle.png" elementtiming="rectangle" id="rect_id"/> +</div> +</body> |