Eric Bailey
113 lines
3.9 KiB
TypeScript
113 lines
3.9 KiB
TypeScript
import {useFonts as defaultUseFonts} from 'expo-font'
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import {isWeb} from '#/platform/detection'
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import {Device, device} from '#/storage'
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const FAMILIES = `-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Liberation Sans", Helvetica, Arial, sans-serif`
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const factor = 0.0625 // 1 - (15/16)
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const fontScaleMultipliers: Record<Device['fontScale'], number> = {
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'-2': 1 - factor * 3,
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'-1': 1 - factor * 2,
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'0': 1 - factor * 1, // default
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'1': 1,
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'2': 1 + factor * 1,
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}
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export function computeFontScaleMultiplier(scale: Device['fontScale']) {
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return fontScaleMultipliers[scale]
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}
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export function getFontScale() {
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return device.get(['fontScale']) ?? '0'
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}
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export function setFontScale(fontScale: Device['fontScale']) {
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device.set(['fontScale'], fontScale)
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}
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export function getFontFamily() {
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return device.get(['fontFamily']) || 'theme'
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}
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export function setFontFamily(fontFamily: Device['fontFamily']) {
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device.set(['fontFamily'], fontFamily)
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}
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/*
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* IMPORTANT: This is unused. Expo statically extracts these fonts, but we load
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* them manually so that we can parallelize the loading along with the JS
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* bundle.
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*
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* See `#/alf/util/useFonts` for the actually used hooks.
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*
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* All used fonts MUST be configured here. Unused fonts are commented out, but
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* the files are there if we need them.
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*/
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export function DO_NOT_USE() {
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return defaultUseFonts({
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// 'Inter-Thin': require('../../assets/fonts/inter/Inter-Thin.otf'),
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// 'Inter-ThinItalic': require('../../assets/fonts/inter/Inter-ThinItalic.otf'),
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// 'Inter-ExtraLight': require('../../assets/fonts/inter/Inter-ExtraLight.otf'),
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// 'Inter-ExtraLightItalic': require('../../assets/fonts/inter/Inter-ExtraLightItalic.otf'),
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// 'Inter-Light': require('../../assets/fonts/inter/Inter-Light.otf'),
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// 'Inter-LightItalic': require('../../assets/fonts/inter/Inter-LightItalic.otf'),
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'Inter-Regular': require('../../assets/fonts/inter/Inter-Regular.otf'),
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'Inter-Italic': require('../../assets/fonts/inter/Inter-Italic.otf'),
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'Inter-Medium': require('../../assets/fonts/inter/Inter-Medium.otf'),
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'Inter-MediumItalic': require('../../assets/fonts/inter/Inter-MediumItalic.otf'),
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'Inter-SemiBold': require('../../assets/fonts/inter/Inter-SemiBold.otf'),
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'Inter-SemiBoldItalic': require('../../assets/fonts/inter/Inter-SemiBoldItalic.otf'),
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'Inter-Bold': require('../../assets/fonts/inter/Inter-Bold.otf'),
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'Inter-BoldItalic': require('../../assets/fonts/inter/Inter-BoldItalic.otf'),
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'Inter-ExtraBold': require('../../assets/fonts/inter/Inter-ExtraBold.otf'),
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'Inter-ExtraBoldItalic': require('../../assets/fonts/inter/Inter-ExtraBoldItalic.otf'),
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'Inter-Black': require('../../assets/fonts/inter/Inter-Black.otf'),
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'Inter-BlackItalic': require('../../assets/fonts/inter/Inter-BlackItalic.otf'),
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})
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}
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/*
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* Unused fonts are commented out, but the files are there if we need them.
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*/
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export function applyFonts(
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style: Record<string, any>,
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fontFamily: 'system' | 'theme',
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) {
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if (fontFamily === 'theme') {
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style.fontFamily =
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{
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// '100': 'Inter-Thin',
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// '200': 'Inter-ExtraLight',
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// '300': 'Inter-Light',
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'100': 'Inter-Regular',
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'200': 'Inter-Regular',
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'300': 'Inter-Regular',
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'400': 'Inter-Regular',
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'500': 'Inter-Medium',
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'600': 'Inter-SemiBold',
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'700': 'Inter-Bold',
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'800': 'Inter-ExtraBold',
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'900': 'Inter-Black',
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}[style.fontWeight as string] || 'Inter-Regular'
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if (style.fontStyle === 'italic') {
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if (style.fontFamily === 'Inter-Regular') {
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style.fontFamily = 'Inter-Italic'
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} else {
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style.fontFamily += 'Italic'
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}
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}
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// fallback families only supported on web
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if (isWeb) {
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style.fontFamily += `, ${FAMILIES}`
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}
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} else {
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// fallback families only supported on web
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if (isWeb) {
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style.fontFamily = style.fontFamily || FAMILIES
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}
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}
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}
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