DS Boyce
53 lines
1.2 KiB
TypeScript
53 lines
1.2 KiB
TypeScript
import {View} from 'react-native'
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import {atoms as a, useTheme, type ViewStyleProp, web as webOnly} from '#/alf'
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import {IS_NATIVE, IS_WEB, IS_WEB_TOUCH_DEVICE} from '#/env'
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export function SubtleHover({
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style,
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hover,
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web = true,
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native = false,
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}: ViewStyleProp & {hover: boolean; web?: boolean; native?: boolean}) {
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const t = useTheme()
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let opacity: number
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switch (t.name) {
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case 'dark':
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opacity = 0.4
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break
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case 'dim':
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opacity = 0.45
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break
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case 'light':
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opacity = 0.5
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break
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}
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const el = (
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<View
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style={[
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a.absolute,
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a.inset_0,
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a.pointer_events_none,
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a.transition_opacity,
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t.atoms.bg_contrast_50,
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style,
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// Force Safari to composite the overlay on its own GPU layer.
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// This fixes a layout shift that happens due to different subpixel
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// rounding when the overlay is composited on hover.
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webOnly({willChange: 'opacity'}),
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{opacity: hover ? opacity : 0},
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]}
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/>
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)
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if (IS_WEB && web) {
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return IS_WEB_TOUCH_DEVICE ? null : el
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} else if (IS_NATIVE && native) {
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return el
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}
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return null
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}
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