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import React from 'react'
import {Text as RNText, TextStyle, TextProps} from 'react-native'
import {useTheme, atoms, web, flatten} from '#/alf'
/**
* 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 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.
*/
function normalizeTextStyles(styles: TextStyle[]) {
const s = flatten(styles)
// should always be defined on these components
const fontSize = s.fontSize || atoms.text_md.fontSize
if (s?.lineHeight) {
if (s.lineHeight <= 2) {
s.lineHeight = fontSize * s.lineHeight
}
} else {
s.lineHeight = fontSize
}
return s
}
export function Text({style, ...rest}: TextProps) {
const t = useTheme()
const s = normalizeTextStyles([atoms.text_sm, t.atoms.text, flatten(style)])
return <RNText style={s} {...rest} />
}
export function H1({style, ...rest}: TextProps) {
const t = useTheme()
const attr =
web({
role: 'heading',
'aria-level': 1,
}) || {}
return (
<RNText
{...attr}
{...rest}
style={normalizeTextStyles([
atoms.text_5xl,
atoms.font_bold,
t.atoms.text,
flatten(style),
])}
/>
)
}
export function H2({style, ...rest}: TextProps) {
const t = useTheme()
const attr =
web({
role: 'heading',
'aria-level': 2,
}) || {}
return (
<RNText
{...attr}
{...rest}
style={normalizeTextStyles([
atoms.text_4xl,
atoms.font_bold,
t.atoms.text,
flatten(style),
])}
/>
)
}
export function H3({style, ...rest}: TextProps) {
const t = useTheme()
const attr =
web({
role: 'heading',
'aria-level': 3,
}) || {}
return (
<RNText
{...attr}
{...rest}
style={normalizeTextStyles([
atoms.text_3xl,
atoms.font_bold,
t.atoms.text,
flatten(style),
])}
/>
)
}
export function H4({style, ...rest}: TextProps) {
const t = useTheme()
const attr =
web({
role: 'heading',
'aria-level': 4,
}) || {}
return (
<RNText
{...attr}
{...rest}
style={normalizeTextStyles([
atoms.text_2xl,
atoms.font_bold,
t.atoms.text,
flatten(style),
])}
/>
)
}
export function H5({style, ...rest}: TextProps) {
const t = useTheme()
const attr =
web({
role: 'heading',
'aria-level': 5,
}) || {}
return (
<RNText
{...attr}
{...rest}
style={normalizeTextStyles([
atoms.text_xl,
atoms.font_bold,
t.atoms.text,
flatten(style),
])}
/>
)
}
export function H6({style, ...rest}: TextProps) {
const t = useTheme()
const attr =
web({
role: 'heading',
'aria-level': 6,
}) || {}
return (
<RNText
{...attr}
{...rest}
style={normalizeTextStyles([
atoms.text_lg,
atoms.font_bold,
t.atoms.text,
flatten(style),
])}
/>
)
}
export function P({style, ...rest}: TextProps) {
const t = useTheme()
const attr =
web({
role: 'paragraph',
}) || {}
return (
<RNText
{...attr}
{...rest}
style={normalizeTextStyles([
atoms.text_md,
atoms.leading_normal,
t.atoms.text,
flatten(style),
])}
/>
)
}
|
