composition-patterns (vercel-labs/agent-skills)

範例產出

SOTA · 装了 skill：Composer.tsx（t1-refactor，第 1 次，Codex）

import React, { createContext, use, useState } from "react"; type ComposerProps = { initialText?: string; onSubmit: (text: string) => void; children?: React.ReactNode; }; type ComposerContextValue = { state: { text: string }; actions: { setText: (text: string) => void; submit: () => void; }; }; const ComposerContext = createContext<ComposerContextValue | null>(null); export function useComposer() { const context = use(ComposerContext); if (!context) { throw new Error("Composer components must be inside Composer.Provider or Composer."); } return context; } function ComposerProvider({ initialText = "", onSubmit, children }: ComposerProps) { const [text, setText] = useState(initialText); function submit() { onSubmit(text); setText(""); } return ( <ComposerContext value={{ state: { text }, actions: { setText, submit } }}> {children} </ComposerContext> ); } function ComposerFrame({ children }: { children: React.ReactNode }) { const { actions } = useComposer(); return ( <form onSubmit={(event) => { event.preventDefault(); actions.submit(); }}> {children} </form> ); } function ComposerInput({ placeholder = "Message" }: { placeholder?: string }) { const { state, actions } = useComposer(); return ( <textarea value={state.text} onChange={(event) => actions.setText(event.target.value)} placeholder={placeholder} /> ); } function ComposerFormatting() { return ( <div className="toolbar"> <button type="button">B</button> <button type="button">I</button> </div> ); } function ComposerAttachments() { return <button type="button">Attach</button>; } function ComposerEmojis() { return <button type="button">😀</button>; } function ComposerSubmit({ children = "Send" }: { children?: React.ReactNode }) { return <button type="submit">{children}</button>; } function ComposerRoot({ children, ...props }: ComposerProps) { return ( <ComposerProvider {...props}> <ComposerFrame> {children === undefined ? <><ComposerInput /><ComposerSubmit /></> : children} </ComposerFrame> </ComposerProvider> ); } /** * Compose controls in their display order; footer content is ordinary children: * * <Composer initialText="Draft" onSubmit={send}> * <Composer.Formatting /> * <Composer.Input placeholder="Reply in thread" /> * <Composer.Attachments /> * <Composer.Emojis /> * <Composer.Submit /> * <CustomFooter /> * </Composer> * * Message: use the default input placeholder and submit label. * Thread: use "Reply in thread" and "Send". * Forward: use "Add a note" and "Forward". * Edit: use "Edit message" and "Save", and omit Attachments. * When migrating overlapping modes, edit takes precedence over forward, then thread. * Include Formatting, Attachments, and Emojis only where needed. * Provider and Frame can also be composed separately to share state with siblings. */ export const Composer = Object.assign(ComposerRoot, { Provider: ComposerProvider, Frame: ComposerFrame, Input: ComposerInput, Formatting: ComposerFormatting, Attachments: ComposerAttachments, Emojis: [... excerpt: first 3200 of 3247 characters]