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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/observe-text.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/element-timing/observe-text.html')
| -rw-r--r-- | testing/web-platform/tests/element-timing/observe-text.html | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/testing/web-platform/tests/element-timing/observe-text.html b/testing/web-platform/tests/element-timing/observe-text.html new file mode 100644 index 0000000000..5d8955269f --- /dev/null +++ b/testing/web-platform/tests/element-timing/observe-text.html @@ -0,0 +1,48 @@ +<!DOCTYPE HTML> +<meta charset=utf-8> +<title>Element Timing: observe text</title> +<body> +<style> +body { + margin: 20px; +} +p { + font-size: 12px; +} +</style> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<script src="resources/element-timing-helpers.js"></script> +<script> + async_test((t) => { + assert_implements(window.PerformanceElementTiming, "PerformanceElementTiming is not implemented"); + let paragraph; + let beforeRender; + const observer = new PerformanceObserver( + t.step_func_done((entryList) => { + assert_equals(entryList.getEntries().length, 1); + const entry = entryList.getEntries()[0]; + checkTextElement(entry, 'my_text', 'text_id', beforeRender, paragraph); + assert_equals(entry.intersectionRect.left, 20, 'left should be 20.'); + // Text box size will vary from device to device, so try lower bounding height by 12, width by 100. + assert_greater_than_equal(entry.intersectionRect.right, 120); + + assert_equals(entry.intersectionRect.top, 20, 'top should be 20.'); + assert_greater_than_equal(entry.intersectionRect.bottom, 32); + }) + ); + observer.observe({entryTypes: ['element']}); + // We add the iframe during onload to be sure that the observer is registered + // in time for it to observe the element timing. + window.onload = () => { + paragraph = document.createElement('p'); + paragraph.innerHTML = 'This is text I care about'; + paragraph.setAttribute('elementtiming', 'my_text'); + paragraph.setAttribute('id', 'text_id'); + document.body.appendChild(paragraph); + beforeRender = performance.now(); + }; + }, 'Paragraph with elementtiming attribute is observed.'); +</script> + +</body> |