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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 /layout/reftests/web-animations/1267937-1.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/web-animations/1267937-1.html')
| -rw-r--r-- | layout/reftests/web-animations/1267937-1.html | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/layout/reftests/web-animations/1267937-1.html b/layout/reftests/web-animations/1267937-1.html new file mode 100644 index 0000000000..6288ec1628 --- /dev/null +++ b/layout/reftests/web-animations/1267937-1.html @@ -0,0 +1,58 @@ +<!doctype html> +<html class="reftest-wait reftest-no-flush"> +<head> +<meta charset=utf-8> +<title>Bug 1267937</title> +<style> +#target { + width: 100px; + height: 100px; + background: green; +} +</style> +</head> +<body> +<div id="target"></div> +<script> + var target = document.getElementById("target"); + var anim = target.animate( + { marginLeft: [ "0px", "10px" ] }, + { duration: 500000 /* 500s */, easing: "steps(2, start)" }); + + anim.ready.then(function() { + // Set currentTime in before phase, i.e., GetComputedTimingAt() returns + // null progress in the phase so that we can skip ComposeStyle(). + // This currentTime value should be far from zero in order to skip + // restyles requested by setting currentTime or frames in a next tick. + // If this value is near by zero, say -1, the restyles will be processed in + // the next tick and current time in the next tick must be greater than + // zero at that point, that means the animation with new frame values will + // be painted. As a result, this test will be useless. + anim.currentTime = -500; + + // Setting another frame does not cause any visual changes because + // the animation is still in the before phase. + anim.effect.setKeyframes({ marginLeft: [ "0px", "400px" ] }); + + var beforePhaseFrames = 0; + window.requestAnimationFrame(function handleFrame() { + if (anim.effect.getComputedTiming().progress === null) { + beforePhaseFrames++; + } + if (anim.effect.getComputedTiming().progress !== null) { + if (beforePhaseFrames == 0) { + console.log("WARNING: We never got frames in the before phase. " + + "This test is going to be passed accidentally. " + + "Consider setting smaller current time, e.g. -1000ms."); + } + // After starting the animation, progress should be 0.5, that means + // margin-left is 200px. + document.documentElement.classList.remove("reftest-wait"); + return; + } + window.requestAnimationFrame(handleFrame); + }); + }); +</script> +</body> +</html> |