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Display name, as it should read in the sentence. */ name: string /** Replaces the dots while this person is the only one typing. Held to 16px tall. */ indicator?: React.ReactNode } type TypingSentence = { /** Everyone typing, the current person left out. */ count: number /** The names to show, at most `maxNames` of them. Empty past that. */ names: string[] /** `names` joined for the locale, such as "Ana, Ben, and Cy". */ list: string } type TypingFormatter = (sentence: TypingSentence) => string /* * One whole sentence per case, never "x" + " and " + "y": other languages * change the verb, the word order and the plural form with the count, so a * translator needs the full sentence for each. `list` comes from * Intl.ListFormat, which already knows each locale's "and". */ const formatTyping: TypingFormatter = ({ count, names, list }) => { if (count === 0) return "" if (names.length === 0) return "Several people are typing…" return count === 1 ? `${list} is typing…` : `${list} are typing…` } function shorten(name: string, limit: number) { // Room for at least one letter before the ellipsis. const max = Math.max(2, limit) const chars = Array.from(name) return chars.length > max ? `${chars .slice(0, max - 1) .join("") .trimEnd()}…` : name } /* * Screen readers hear the sentence once it has held still for `delay`, so a * burst of people starting and stopping reads as one update instead of a * stream. Clearing is immediate and silent: an emptied status region isn't * announced, and nobody needs telling that a person stopped typing. */ function useSettled(value: string, delay: number) { const [settled, setSettled] = React.useState("") React.useEffect(() => { // An empty value resets at once too, so a stale sentence can't flash // back when someone starts typing again. const id = window.setTimeout(() => setSettled(value), value ? delay : 0) return () => window.clearTimeout(id) }, [value, delay]) return value ? settled : "" } type TypingIndicatorProps = Omit, "children"> & { /** Everyone typing right now. Pass the current person too; they're left out. */ people: TypingPerson[] /** The id of the person looking at the screen, who never sees themselves typing. */ currentUserId?: string /** How many people to name before switching to "Several people". */ maxNames?: number /** Characters a name may take before it's cut short on screen, at least 2. Announcements keep it whole. */ maxNameLength?: number /** Builds the sentence. Swap it to translate; the default is English. */ format?: TypingFormatter /** Locale for joining names, passed to Intl.ListFormat. */ locale?: string /** Milliseconds the sentence must hold still before screen readers hear it. */ announceDelay?: number } function TypingIndicator({ people, currentUserId, maxNames = 3, maxNameLength = 24, format = formatTyping, locale = "en", announceDelay = 1500, className, ...props }: TypingIndicatorProps) { // One person typing on two devices sends two events; they're still one name. const typing = [ ...new Map( people .filter((person) => person.id !== currentUserId) .map((person) => [person.id, person]) ).values(), ] const count = typing.length const named = count <= maxNames ? typing : [] const join = React.useMemo( () => new Intl.ListFormat(locale, { type: "conjunction" }), [locale] ) const sentence = (names: string[]) => format({ count, names, list: join.format(names) }) const shown = sentence(named.map((p) => shorten(p.name, maxNameLength))) const spoken = useSettled(sentence(named.map((p) => p.name)), announceDelay) const custom = count === 1 ? typing[0]?.indicator : undefined return (

0 ? "" : undefined} className={cn( // A fixed height that's there even when nobody is typing, so the // message list above doesn't jump each time someone starts. "flex h-6 min-w-0 items-center gap-2 text-xs text-muted-foreground", className )} {...props} > {count > 0 ? (

{/* A fixed height rather than a cap, so the dots have room to rise inside the clip that holds a custom indicator to 16px. */} {custom ?? } {shown}

) : null} {spoken}

) } function TypingDots() { return [0, 1, 2].map((i) => ( )) } export { TypingIndicator, formatTyping, type TypingIndicatorProps, type TypingPerson, type TypingSentence, type TypingFormatter, } 50:["$","div",null,{"className":"mt-3 flex min-h-0 min-w-0 flex-1 flex-col gap-3","children":[["$","div",null,{"className":"flex shrink-0 items-start gap-3","children":[["$","div",null,{"className":"flex max-h-28 min-w-0 flex-1 flex-wrap items-center gap-2 overflow-y-auto","children":[null,["$","$L51",null,{"namespace":"@fibo","registryDependencies":["utils"]}]]}],["$","$L52",null,{"children":["$","div",null,{"className":"@container","children":["$","div",null,{"className":"grid grid-cols-1 gap-4 @xl:grid-cols-2","children":[null,null,["$","div",null,{"className":"flex flex-col border rounded-md","children":[["$","p",null,{"className":"text-sm font-medium border-b p-2","children":"Theme"}],["$","div",null,{"children":["$","$L53",null,{"type":"always","className":"h-80 px-2","children":[["$","div",null,{"className":"gap-2 pb-8 flex flex-col pt-4","children":[["$","div","animate-typing-dot",{"className":"items-start gap-1 grid grid-cols-2 text-sm","children":[["$","div",null,{"className":"hover:bg-muted/50 py-2","children":["$","p",null,{"className":"text-foreground/80 text-sm","children":["--","animate-typing-dot",":"]}]}],["$","div",null,{"className":"hover:bg-muted/50 py-2 px-1 rounded-md w-full","children":"typing-dot 1.2s ease-in-out infinite"}]]}]]}],["$","$L54",null,{"orientation":"horizontal"}]]}]}]]}],["$","div",null,{"className":"flex flex-col border rounded-md","children":[["$","p",null,{"className":"text-sm font-medium border-b p-2","children":"CSS"}],["$","div",null,{"children":["$","$L55",null,{"lang":"css","copyButton":true,"writing":false,"className":"rounded-none w-full max-h-80","header":false,"children":"@keyframes typing-dot {\n\t0%,\n 60%,\n 100% {\n\t\topacity: 0.4;\n\t\ttransform: translateY(0);\n\t}\n\t30% {\n\t\topacity: 1;\n\t\ttransform: translateY(-2px);\n\t}\n}"}]}]]}]]}]}]}]]}],["$","$L56",null,{"files":[{"path":"registry/ui/typing-indicator.tsx","content":"$57","type":"registry:ui"}],"className":"h-[70svh] min-h-80"}]]}]