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84 lines
2.8 KiB
HTML
84 lines
2.8 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<title>Testing the interpolation of new font-weight values introduced in CSS Fonts level 4</title>
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<link rel="help" href="https://www.w3.org/TR/css-fonts-4/#font-weight-prop" />
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<style>
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@keyframes fontWeightAnimation {
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from { font-weight: 100; }
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to { font-weight: 900; }
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}
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#animation-test.animate {
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animation: fontWeightAnimation 1s infinite alternate;
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}
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#transition-test {
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font-weight: 100;
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transition-property: font-weight;
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transition-duration: 10s;
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}
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#transition-test.animate {
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font-weight: 900;
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}
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</style>
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</head>
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<body>
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<div style="font-family: 'CSSTest Weights Full';">
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<div id="animation-test">A</div>
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<div id="transition-test">A</div>
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</div>
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<script>
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async_test(function (test) {
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var animationElement = document.getElementById("animation-test");
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// Verify starting value
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assert_equals(window.getComputedStyle(animationElement).fontWeight, "400", "Font weight before animation");
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// Start animation
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animationElement.classList.add("animate");
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var waitForAnimationStep = test.step_func(function() {
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var computedFontWeight = window.getComputedStyle(animationElement).fontWeight;
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if (computedFontWeight[1] != "0" || computedFontWeight[2] != 0) { // the value should eventually not be a multiple of 100
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test.done();
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}
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else {
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window.requestAnimationFrame(waitForAnimationStep);
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}
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});
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waitForAnimationStep();
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}, "font-weight animation");
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async_test(function (test) {
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var transitionElement = document.getElementById("transition-test");
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// Verify starting value
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assert_equals(window.getComputedStyle(transitionElement).fontWeight, "100", "Font weight before transition");
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// Start transition
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transitionElement.classList.add("animate");
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var waitForTransitionStep = test.step_func(function() {
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var computedFontWeight = window.getComputedStyle(transitionElement).fontWeight;
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if (computedFontWeight[1] != "0" || computedFontWeight[2] != 0) { // the value should eventually not be a multiple of 100
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test.done();
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}
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else {
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window.requestAnimationFrame(waitForTransitionStep);
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}
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});
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waitForTransitionStep();
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}, "font-weight transition");
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</script>
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</body>
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</html>
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