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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:22:09 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:22:09 +0000 |
| commit | 43a97878ce14b72f0981164f87f2e35e14151312 (patch) | |
| tree | 620249daf56c0258faa40cbdcf9cfba06de2a846 /testing/web-platform/tests/css/css-fonts/animations/system-fonts.html | |
| parent | Initial commit. (diff) | |
| download | firefox-43a97878ce14b72f0981164f87f2e35e14151312.tar.xz firefox-43a97878ce14b72f0981164f87f2e35e14151312.zip | |
Adding upstream version 110.0.1.upstream/110.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'testing/web-platform/tests/css/css-fonts/animations/system-fonts.html')
| -rw-r--r-- | testing/web-platform/tests/css/css-fonts/animations/system-fonts.html | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/testing/web-platform/tests/css/css-fonts/animations/system-fonts.html b/testing/web-platform/tests/css/css-fonts/animations/system-fonts.html new file mode 100644 index 0000000000..7021a5264e --- /dev/null +++ b/testing/web-platform/tests/css/css-fonts/animations/system-fonts.html @@ -0,0 +1,70 @@ +<!DOCTYPE html> +<meta charset="utf-8"> +<title>CSS Fonts Test: Interpolation of system fonts</title> +<link rel="help" href="https://drafts.csswg.org/css-fonts/#valdef-font-caption"> +<link rel="author" title="Oriol Brufau" href="mailto:obrufau@igalia.com"> +<meta name="assert" content="When interpolating system fonts, they are first resolved and then the font longhands interpolate as usual"> +<link rel="stylesheet" herf="/fonts/ahem.css"> + +<div id="resolver"></div> + +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<script src="/css/support/interpolation-testcommon.js"></script> +<script> +// The system fonts will probably resolve to something very different. +const initialFont = "italic 100 small-caps ultra-expanded 100px / 100px Ahem"; + +const resolver = document.getElementById("resolver"); +const resolvedStyle = getComputedStyle(resolver); + +function extractNumber(value, unit) { + value = value.trim(); + if (!value.endsWith(unit)) + return NaN; + value = value.slice(0, -unit.length); + if (!value.length || value !== value.trim()) + return NaN; + return Number(value); +} + +const systemFonts = ["caption", "icon", "menu", "message-box", "small-caption", "status-bar"]; +for (const systemFont of systemFonts) { + resolver.style.font = systemFont; + const expectations = []; + const systemFontStyle = resolvedStyle["font-style"]; + const systemFontWeight = Number(resolvedStyle["font-weight"]); + const systemFontVariant = resolvedStyle["font-variant"]; + const systemFontStretch = extractNumber(resolvedStyle["font-stretch"], "%"); + const systemFontSize = extractNumber(resolvedStyle["font-size"], "px"); + const systemLineHeight = resolvedStyle["line-height"]; + const systemLineHeightNumber = extractNumber(systemLineHeight, "px"); + const systemFontFamily = resolvedStyle["font-family"]; + + for (const at of [-2, -0.5, 0, 0.3, 0.6, 1, 1.5]) { + const expect = {}; + expect["font-style"] = at >= 0.5 ? systemFontStyle : "italic"; + expect["font-weight"] = `${Math.max(1, at * systemFontWeight + (1 - at) * 100)}`; + expect["font-variant"] = at >= 0.5 ? systemFontVariant : "small-caps"; + expect["font-stretch"] = `${at * systemFontStretch + (1 - at) * 200}%`; + expect["font-size"] = `${Math.max(0, at * systemFontSize + (1 - at) * 100)}px`; + expect["line-height"] = Number.isNaN(systemLineHeightNumber) + ? (at >= 0.5 ? systemLineHeight : "100px") + : `${Math.max(0, at * systemLineHeightNumber + (1 - at) * 100)}px`; + expect["font-family"] = at >= 0.5 ? systemFontFamily : "Ahem"; + // There are more font longhands, but they can't be set in the shorthand, + // and the system fonts will probably resolve to the initial value, + // preventing a noticeable interpolation. + expectations.push({at, expect}); + } + + for (const method of ["CSS Animations", "Web Animations"]) { + test_interpolation({ + method, + property: "font", + from: initialFont, + to: systemFont, + }, expectations); + } +} +</script> |