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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/layout-instability/input-timestamp.html | |
| parent | Initial commit. (diff) | |
| download | thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.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/layout-instability/input-timestamp.html')
| -rw-r--r-- | testing/web-platform/tests/layout-instability/input-timestamp.html | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/testing/web-platform/tests/layout-instability/input-timestamp.html b/testing/web-platform/tests/layout-instability/input-timestamp.html new file mode 100644 index 0000000000..ba31d47866 --- /dev/null +++ b/testing/web-platform/tests/layout-instability/input-timestamp.html @@ -0,0 +1,72 @@ +<!DOCTYPE HTML> +<meta charset=utf-8> +<title>Layout Instability: observe timestamp 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, false); + assert_greater_than_equal(timeAfterClick, entry.lastInputTime); + resolve(); + }) + ); + observer.observe({ entryTypes: ['layout-shift'] }); + // User input event + clickAndBlockMain('button').then(() => { + // 600ms delay + step_timeout(function() { + timeAfterClick = performance.now(); + // Modify the position of the div. + document.getElementById('myDiv').style = "top: 60px"; + }, 600); + }); + }); + }, 'Layout shift right after user input is observable via PerformanceObserver.'); + </script> + +</body> |