diff options
| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
| commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
| tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /testing/web-platform/tests/layout-instability/recent-input.html | |
| parent | Initial commit. (diff) | |
| download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip | |
Adding upstream version 115.7.0esr.upstream/115.7.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'testing/web-platform/tests/layout-instability/recent-input.html')
| -rw-r--r-- | testing/web-platform/tests/layout-instability/recent-input.html | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/testing/web-platform/tests/layout-instability/recent-input.html b/testing/web-platform/tests/layout-instability/recent-input.html new file mode 100644 index 0000000000..2779d4ffe0 --- /dev/null +++ b/testing/web-platform/tests/layout-instability/recent-input.html @@ -0,0 +1,61 @@ +<!DOCTYPE HTML> +<meta charset=utf-8> +<title>Layout Instability: observe after user input</title> +<body> +<style> +#myDiv { position: relative; width: 300px; height: 100px; background: blue; } + +/* Disable the button's focus ring, which otherwise expands its visual rect by + * 1px on all sides, triggering a layout shift event. + */ +#button { outline: none; } +</style> +<div id='myDiv'></div> +<button id='button'>Generate a 'click' event</button> +<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 src=resources/util.js></script> +<script src=/event-timing/resources/event-timing-test-utils.js></script> +<script> +let timeAfterClick; + +promise_test(async t => { + assert_implements(window.LayoutShift, 'Layout Instability is not supported.'); + // Wait for the initial render to complete. + await waitForAnimationFrames(2); + + const startTime = performance.now(); + return new Promise(resolve => { + const observer = new PerformanceObserver( + t.step_func(entryList => { + const endTime = performance.now(); + assert_equals(entryList.getEntries().length, 1); + const entry = entryList.getEntries()[0]; + assert_equals(entry.entryType, "layout-shift"); + assert_equals(entry.name, ""); + assert_greater_than_equal(entry.startTime, startTime); + assert_less_than_equal(entry.startTime, endTime); + assert_equals(entry.duration, 0.0); + // The layout shift value should be: + // 300 * (100 + 60) * (60 / maxDimension) / viewport size. + assert_equals(entry.value, computeExpectedScore(300 * (100 + 60), 60)); + // We should see that there was a click input entry. + assert_equals(entry.hadRecentInput, true); + assert_greater_than_equal(timeAfterClick, entry.lastInputTime); + resolve(); + }) + ); + observer.observe({entryTypes: ['layout-shift']}); + // User input event + clickAndBlockMain('button').then(() => { + timeAfterClick = performance.now(); + // Modify the position of the div. + document.getElementById('myDiv').style = "top: 60px"; + }); + }); +}, 'Layout shift right after user input is observable via PerformanceObserver.'); +</script> + +</body> |