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<!DOCTYPE html>
<meta charset="UTF-8">
<title>Font-palette animation with unspecified endpoints keyframes</title>
<link rel="help" href="https://www.w3.org/TR/css-fonts-4/#propdef-font-palette">
<meta name="assert" content="Font-palette should be animated if `from` and `to` keyframes are not specified.">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>
@font-face {
font-family: "COLR-test-font";
src: url("../resources/COLR-palettes-test-font.ttf") format("truetype");
}
@font-palette-values --custom {
font-family: "COLR-test-font";
base-palette: 3;
}
@keyframes animFrom {
from {
font-palette: --custom;
}
}
@keyframes animTo {
to {
font-palette: --custom;
}
}
.demo {
font-family: "COLR-test-font";
font-size: 130px;
}
.animFrom {
animation: animFrom 0.1s forwards;
}
.animTo {
animation: animTo 0.1s forwards;
}
</style>
<body>
<div class="demo">
<div id="a" class="animTo">A</div>
<div id="b" class="animFrom" style="font-palette: --custom;">A</div>
</div>
</body>
<script>
var afterPaletteAnimationTest1 = async_test(
"Verify font-palette is animated when `from` keyframe is not specified"
);
document.getElementById("a").addEventListener("animationend",
afterPaletteAnimationTest1.step_func_done(function() {
assert_equals(window.getComputedStyle(
document.getElementById("a"))
.getPropertyValue('font-palette'), "--custom");
}));
var afterPaletteAnimationTest2 = async_test(
"Verify font-palette is animated when `to` keyframe is not specified"
);
document.getElementById("b").addEventListener("animationend",
afterPaletteAnimationTest2.step_func_done(function() {
assert_equals(window.getComputedStyle(
document.getElementById("b"))
.getPropertyValue('font-palette'), "normal");
}));
</script>
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