cbc7cd0808
* Add fontScale, gate it, fix some computes * Add inter, integrate * Clean up * Apply to old Text component * Use numeric weight * Cleanup * Clean up appearance settings * Global tracking * Fix regular italic variant * Refactor settings and fontScale values * Remove flags * Get rid of lower weight font usage * Remove gate from settings * Refactor appearance settings for reuse * Add neue type nux * Update defaults * Load fonts, add fallback families * Load fonts via plugin in production * Fixes * Fix for web * Nits --------- Co-authored-by: Hailey <me@haileyok.com>
111 lines
3 KiB
TypeScript
111 lines
3 KiB
TypeScript
import React from 'react'
|
|
import {StyleProp, TextProps as RNTextProps, TextStyle} from 'react-native'
|
|
import {UITextView} from 'react-native-uitextview'
|
|
|
|
import {isNative} from '#/platform/detection'
|
|
import {Alf, applyFonts, atoms, flatten, useAlf, useTheme, web} from '#/alf'
|
|
|
|
export type TextProps = RNTextProps & {
|
|
/**
|
|
* Lets the user select text, to use the native copy and paste functionality.
|
|
*/
|
|
selectable?: boolean
|
|
}
|
|
|
|
/**
|
|
* Util to calculate lineHeight from a text size atom and a leading atom
|
|
*
|
|
* Example:
|
|
* `leading(atoms.text_md, atoms.leading_normal)` // => 24
|
|
*/
|
|
export function leading<
|
|
Size extends {fontSize?: number},
|
|
Leading extends {lineHeight?: number},
|
|
>(textSize: Size, leading: Leading) {
|
|
const size = textSize?.fontSize || atoms.text_md.fontSize
|
|
const lineHeight = leading?.lineHeight || atoms.leading_normal.lineHeight
|
|
return Math.round(size * lineHeight)
|
|
}
|
|
|
|
/**
|
|
* Ensures that `lineHeight` defaults to a relative value of `1`, or applies
|
|
* other relative leading atoms.
|
|
*
|
|
* If the `lineHeight` value is > 2, we assume it's an absolute value and
|
|
* returns it as-is.
|
|
*/
|
|
export function normalizeTextStyles(
|
|
styles: StyleProp<TextStyle>,
|
|
{
|
|
fontScale,
|
|
fontFamily,
|
|
}: {
|
|
fontScale: number
|
|
fontFamily: Alf['fonts']['family']
|
|
} & Pick<Alf, 'flags'>,
|
|
) {
|
|
const s = flatten(styles)
|
|
// should always be defined on these components
|
|
s.fontSize = (s.fontSize || atoms.text_md.fontSize) * fontScale
|
|
|
|
if (s?.lineHeight) {
|
|
if (s.lineHeight !== 0 && s.lineHeight <= 2) {
|
|
s.lineHeight = Math.round(s.fontSize * s.lineHeight)
|
|
}
|
|
} else if (!isNative) {
|
|
s.lineHeight = s.fontSize
|
|
}
|
|
|
|
applyFonts(s, fontFamily)
|
|
|
|
return s
|
|
}
|
|
|
|
/**
|
|
* Our main text component. Use this most of the time.
|
|
*/
|
|
export function Text({style, selectable, ...rest}: TextProps) {
|
|
const {fonts, flags} = useAlf()
|
|
const t = useTheme()
|
|
const s = normalizeTextStyles([atoms.text_sm, t.atoms.text, flatten(style)], {
|
|
fontScale: fonts.scaleMultiplier,
|
|
fontFamily: fonts.family,
|
|
flags,
|
|
})
|
|
|
|
return <UITextView selectable={selectable} uiTextView style={s} {...rest} />
|
|
}
|
|
|
|
export function createHeadingElement({level}: {level: number}) {
|
|
return function HeadingElement({style, ...rest}: TextProps) {
|
|
const attr =
|
|
web({
|
|
role: 'heading',
|
|
'aria-level': level,
|
|
}) || {}
|
|
return <Text {...attr} {...rest} style={style} />
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Use semantic components when it's beneficial to the user or to a web scraper
|
|
*/
|
|
export const H1 = createHeadingElement({level: 1})
|
|
export const H2 = createHeadingElement({level: 2})
|
|
export const H3 = createHeadingElement({level: 3})
|
|
export const H4 = createHeadingElement({level: 4})
|
|
export const H5 = createHeadingElement({level: 5})
|
|
export const H6 = createHeadingElement({level: 6})
|
|
export function P({style, ...rest}: TextProps) {
|
|
const attr =
|
|
web({
|
|
role: 'paragraph',
|
|
}) || {}
|
|
return (
|
|
<Text
|
|
{...attr}
|
|
{...rest}
|
|
style={[atoms.text_md, atoms.leading_normal, flatten(style)]}
|
|
/>
|
|
)
|
|
}
|