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Merge pull request #96 from element-hq/small-headings
Fix CSS output for small headings
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,67 @@ | ||
| /* | ||
| Copyright 2024 New Vector Ltd. | ||
| Licensed under the Apache License, Version 2.0 (the "License"); | ||
| you may not use this file except in compliance with the License. | ||
| You may obtain a copy of the License at | ||
| http://www.apache.org/licenses/LICENSE-2.0 | ||
| Unless required by applicable law or agreed to in writing, software | ||
| distributed under the License is distributed on an "AS IS" BASIS, | ||
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| See the License for the specific language governing permissions and | ||
| limitations under the License. | ||
| */ | ||
|
|
||
| import { readFile, writeFile } from "node:fs/promises"; | ||
|
|
||
| interface Typography { | ||
| fontWeight: unknown; | ||
| fontSize: unknown; | ||
| lineHeight: unknown; | ||
| fontFamily: unknown; | ||
| letterSpacing: unknown; | ||
| } | ||
|
|
||
| function normalizeTypography({ | ||
| fontWeight, | ||
| fontSize, | ||
| lineHeight, | ||
| fontFamily, | ||
| letterSpacing, | ||
| }: Typography): Typography { | ||
| // Put the properties in the same order as they appear in CSS font shorthands | ||
| return { fontWeight, fontSize, lineHeight, fontFamily, letterSpacing }; | ||
| } | ||
|
|
||
| function normalize(data: unknown): unknown { | ||
| if (typeof data === "object" && data !== null) { | ||
| if ("type" in data && "value" in data) | ||
| return data.type === "typography" | ||
| ? { ...data, value: normalizeTypography(data.value as Typography) } | ||
| : data; | ||
|
|
||
| return Object.fromEntries( | ||
| Object.entries(data).map(([k, v]) => [k, normalize(v)]), | ||
| ); | ||
| } | ||
|
|
||
| return data; | ||
| } | ||
|
|
||
| // Due to a deficiency of Style Dictionary when recovering variable references | ||
| // from properties that were flattened from an object into a string, we must | ||
| // normalize some tokens to ensure that their properties appear in the same | ||
| // order in the input as they do in the output. | ||
| // https://github.com/amzn/style-dictionary/blob/4575dd5a9cc226ebb378f23ce5f1f2d22e2e108a/lib/common/formatHelpers/createPropertyFormatter.js#L201 | ||
| export async function normalizeTokens(): Promise<void> { | ||
| const webTokens: object = JSON.parse( | ||
| await readFile("tokens/platform-web.json", { encoding: "utf8" }), | ||
| ); | ||
| const normalized = normalize(webTokens); | ||
| await writeFile( | ||
| "tokens/platform-web.json", | ||
| JSON.stringify(normalized, undefined, 2), | ||
| ); | ||
| } |
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