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import React from 'react'
import {TextStyle} from 'react-native'
import {AppBskyRichtextFacet, RichText as RichTextAPI} from '@atproto/api'
import {msg} from '@lingui/macro'
import {useLingui} from '@lingui/react'
import {useNavigation} from '@react-navigation/native'
import {NavigationProp} from '#/lib/routes/types'
import {toShortUrl} from '#/lib/strings/url-helpers'
import {isNative} from '#/platform/detection'
import {atoms as a, flatten, native, TextStyleProp, useTheme, web} from '#/alf'
import {useInteractionState} from '#/components/hooks/useInteractionState'
import {InlineLinkText, LinkProps} from '#/components/Link'
import {ProfileHoverCard} from '#/components/ProfileHoverCard'
import {TagMenu, useTagMenuControl} from '#/components/TagMenu'
import {Text, TextProps} from '#/components/Typography'
const WORD_WRAP = {wordWrap: 1}
export type RichTextProps = TextStyleProp &
Pick<TextProps, 'selectable'> & {
value: RichTextAPI | string
testID?: string
numberOfLines?: number
disableLinks?: boolean
enableTags?: boolean
authorHandle?: string
onLinkPress?: LinkProps['onPress']
interactiveStyle?: TextStyle
emojiMultiplier?: number
}
export function RichText({
testID,
value,
style,
numberOfLines,
disableLinks,
selectable,
enableTags = false,
authorHandle,
onLinkPress,
interactiveStyle,
emojiMultiplier = 1.85,
}: RichTextProps) {
const richText = React.useMemo(
() =>
value instanceof RichTextAPI ? value : new RichTextAPI({text: value}),
[value],
)
const flattenedStyle = flatten(style)
const plainStyles = [a.leading_snug, flattenedStyle]
const interactiveStyles = [
a.leading_snug,
flatten(interactiveStyle),
flattenedStyle,
]
const {text, facets} = richText
if (!facets?.length) {
if (isOnlyEmoji(text)) {
const fontSize =
(flattenedStyle.fontSize ?? a.text_sm.fontSize) * emojiMultiplier
return (
<Text
emoji
selectable={selectable}
testID={testID}
style={[plainStyles, {fontSize}]}
// @ts-ignore web only -prf
dataSet={WORD_WRAP}>
{text}
</Text>
)
}
return (
<Text
emoji
selectable={selectable}
testID={testID}
style={plainStyles}
numberOfLines={numberOfLines}
// @ts-ignore web only -prf
dataSet={WORD_WRAP}>
{text}
</Text>
)
}
const els = []
let key = 0
// N.B. must access segments via `richText.segments`, not via destructuring
for (const segment of richText.segments()) {
const link = segment.link
const mention = segment.mention
const tag = segment.tag
if (
mention &&
AppBskyRichtextFacet.validateMention(mention).success &&
!disableLinks
) {
els.push(
<ProfileHoverCard key={key} inline did={mention.did}>
<InlineLinkText
selectable={selectable}
to={`/profile/${mention.did}`}
style={interactiveStyles}
// @ts-ignore TODO
dataSet={WORD_WRAP}
onPress={onLinkPress}>
{segment.text}
</InlineLinkText>
</ProfileHoverCard>,
)
} else if (link && AppBskyRichtextFacet.validateLink(link).success) {
if (disableLinks) {
els.push(toShortUrl(segment.text))
} else {
els.push(
<InlineLinkText
selectable={selectable}
key={key}
to={link.uri}
style={interactiveStyles}
// @ts-ignore TODO
dataSet={WORD_WRAP}
shareOnLongPress
onPress={onLinkPress}
emoji>
{toShortUrl(segment.text)}
</InlineLinkText>,
)
}
} else if (
!disableLinks &&
enableTags &&
tag &&
AppBskyRichtextFacet.validateTag(tag).success
) {
els.push(
<RichTextTag
key={key}
text={segment.text}
tag={tag.tag}
style={interactiveStyles}
selectable={selectable}
authorHandle={authorHandle}
/>,
)
} else {
els.push(
<Text key={key} emoji style={plainStyles}>
{segment.text}
</Text>,
)
}
key++
}
return (
<Text
selectable={selectable}
testID={testID}
style={plainStyles}
numberOfLines={numberOfLines}
// @ts-ignore web only -prf
dataSet={WORD_WRAP}>
{els}
</Text>
)
}
function RichTextTag({
text,
tag,
style,
selectable,
authorHandle,
}: {
text: string
tag: string
selectable?: boolean
authorHandle?: string
} & TextStyleProp) {
const t = useTheme()
const {_} = useLingui()
const control = useTagMenuControl()
const {
state: hovered,
onIn: onHoverIn,
onOut: onHoverOut,
} = useInteractionState()
const {state: focused, onIn: onFocus, onOut: onBlur} = useInteractionState()
const navigation = useNavigation<NavigationProp>()
const navigateToPage = React.useCallback(() => {
navigation.push('Hashtag', {
tag: encodeURIComponent(tag),
})
}, [navigation, tag])
const openDialog = React.useCallback(() => {
control.open()
}, [control])
/*
* N.B. On web, this is wrapped in another pressable comopnent with a11y
* labels, etc. That's why only some of these props are applied here.
*/
return (
<React.Fragment>
<TagMenu control={control} tag={tag} authorHandle={authorHandle}>
<Text
emoji
selectable={selectable}
{...native({
accessibilityLabel: _(msg`Hashtag: #${tag}`),
accessibilityHint: _(msg`Long press to open tag menu for #${tag}`),
accessibilityRole: isNative ? 'button' : undefined,
onPress: navigateToPage,
onLongPress: openDialog,
})}
{...web({
onMouseEnter: onHoverIn,
onMouseLeave: onHoverOut,
})}
// @ts-ignore
onFocus={onFocus}
onBlur={onBlur}
style={[
web({
cursor: 'pointer',
}),
{color: t.palette.primary_500},
(hovered || focused) && {
...web({
outline: 0,
textDecorationLine: 'underline',
textDecorationColor: t.palette.primary_500,
}),
},
style,
]}>
{text}
</Text>
</TagMenu>
</React.Fragment>
)
}
export function isOnlyEmoji(text: string) {
return (
text.length <= 15 &&
/^[\p{Emoji_Presentation}\p{Extended_Pictographic}]+$/u.test(text)
)
}
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