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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-21 11:44:51 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-21 11:44:51 +0000 |
| commit | 9e3c08db40b8916968b9f30096c7be3f00ce9647 (patch) | |
| tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /layout/reftests/css-animations/no-stacking-context-opacity-removing-animation-in-delay.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 'layout/reftests/css-animations/no-stacking-context-opacity-removing-animation-in-delay.html')
| -rw-r--r-- | layout/reftests/css-animations/no-stacking-context-opacity-removing-animation-in-delay.html | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/layout/reftests/css-animations/no-stacking-context-opacity-removing-animation-in-delay.html b/layout/reftests/css-animations/no-stacking-context-opacity-removing-animation-in-delay.html new file mode 100644 index 0000000000..806e82f9b0 --- /dev/null +++ b/layout/reftests/css-animations/no-stacking-context-opacity-removing-animation-in-delay.html @@ -0,0 +1,47 @@ +<!DOCTYPE html> +<html class="reftest-wait"> +<title> +Removing CSS animation in delay phase destroys a stacking context +</title> +<style> +span { + height: 100px; + width: 100px; + position: fixed; + background: green; + top: 50px; +} +@keyframes Opacity0 { + from, to { opacity: 0 } +} +#test { + width: 100px; height: 100px; + background: blue; + opacity: 1 ! important; +} +</style> +<span></span> +<div id="test"></div> +<script> +window.addEventListener("load", () => { + var target = document.getElementById("test"); + target.style.animation = "Opacity0 100s 100s"; + + // We need to wait for MozAfterPaint instead of requestAnimationFrame to + // ensure the stacking context has been updated on the compositor. + window.addEventListener("MozAfterPaint", function() { + // Here we have CSS animation on 100% opacity style element, so + // there should be a stacking context. + + target.style.animation = ""; + + // This time we don't need to wait for MozAfterPaint because reftest tool + // will be received MozAferPaint event. + requestAnimationFrame(() => { + // Now we have only 100% opacity style, so we should not create any + // stacking context. + document.documentElement.classList.remove("reftest-wait"); + }); + }, {once: true}); +}); +</script> |