363 lines
11 KiB
TypeScript
363 lines
11 KiB
TypeScript
"use client"
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import { useEffect, useRef, useState } from "react"
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import { EditorContent, useEditor } from "@tiptap/react"
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import Image from "@tiptap/extension-image"
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import Placeholder from "@tiptap/extension-placeholder"
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import StarterKit from "@tiptap/starter-kit"
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import { ImageIcon, PaperclipIcon, SendHorizonalIcon } from "lucide-react"
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import { Button } from "@/components/ui/button"
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import {
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buildSendableEditorHTML,
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hasUploadingEditorImages,
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markEditorImageUploadedByTitle,
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removeEditorImageByTitle,
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revokeEditorObjectUrl,
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revokeEditorObjectUrls,
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} from "@/lib/im-editor-image"
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import { generateUUID } from "@/lib/utils"
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type UploadedImage = {
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assetId: string
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provider: string
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storageKey: string
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url: string
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filename?: string
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}
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const MessageImage = Image.extend({
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addAttributes() {
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return {
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...this.parent?.(),
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dataAssetId: {
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default: null,
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parseHTML: (element) => element.getAttribute("data-asset-id"),
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renderHTML: (attributes) =>
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attributes.dataAssetId ? { "data-asset-id": attributes.dataAssetId } : {},
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},
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dataProvider: {
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default: null,
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parseHTML: (element) => element.getAttribute("data-provider"),
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renderHTML: (attributes) =>
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attributes.dataProvider ? { "data-provider": attributes.dataProvider } : {},
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},
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dataStorageKey: {
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default: null,
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parseHTML: (element) => element.getAttribute("data-storage-key"),
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renderHTML: (attributes) =>
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attributes.dataStorageKey ? { "data-storage-key": attributes.dataStorageKey } : {},
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},
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}
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},
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})
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type KefuMessageEditorProps = {
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disabled?: boolean
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uploadingAsset?: boolean
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onSend: (html: string) => Promise<void>
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onUploadImage: (file: File) => Promise<UploadedImage | null>
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onSendAttachment: (file: File) => Promise<void>
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}
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export function KefuMessageEditor({
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disabled = false,
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uploadingAsset = false,
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onSend,
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onUploadImage,
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onSendAttachment,
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}: KefuMessageEditorProps) {
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const [localUploading, setLocalUploading] = useState(false)
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const imageInputRef = useRef<HTMLInputElement | null>(null)
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const attachmentInputRef = useRef<HTMLInputElement | null>(null)
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const onSendRef = useRef(onSend)
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const onUploadImageRef = useRef(onUploadImage)
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const onSendAttachmentRef = useRef(onSendAttachment)
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const shouldRestoreFocusRef = useRef(false)
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const objectUrlsRef = useRef<Set<string>>(new Set())
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const uploadedImagesRef = useRef(new Map<string, UploadedImage>())
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const isUploading = uploadingAsset || localUploading
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useEffect(() => {
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const objectUrls = objectUrlsRef.current
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return () => {
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revokeEditorObjectUrls(objectUrls)
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}
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}, [])
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useEffect(() => {
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onSendRef.current = onSend
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}, [onSend])
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useEffect(() => {
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onUploadImageRef.current = onUploadImage
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}, [onUploadImage])
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useEffect(() => {
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onSendAttachmentRef.current = onSendAttachment
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}, [onSendAttachment])
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const editor = useEditor({
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immediatelyRender: false,
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extensions: [
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StarterKit.configure({
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heading: false,
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blockquote: false,
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codeBlock: false,
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bulletList: false,
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orderedList: false,
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horizontalRule: false,
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}),
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MessageImage,
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Placeholder.configure({
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placeholder: "输入消息,Enter 发送,Shift + Enter 换行",
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}),
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],
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content: "",
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editorProps: {
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attributes: {
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class:
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"cs-agent-scrollbar min-h-12 max-h-40 overflow-y-auto px-1.5 py-1 text-sm leading-6 text-foreground outline-none [&_p]:m-0 [&_p+*]:mt-2 [&_img]:my-2 [&_img]:max-h-64 [&_img]:rounded-lg [&_img]:object-contain",
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},
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handleKeyDown: (_view, event) => {
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if (event.key === "Enter" && !event.shiftKey) {
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event.preventDefault()
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void handleSend()
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return true
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}
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return false
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},
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handlePaste: (_view, event) => {
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if (disabled || isUploading) {
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return false
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}
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const imageFile = getClipboardImageFile(event.clipboardData)
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if (!imageFile) {
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return false
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}
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event.preventDefault()
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void insertUploadedImage(imageFile)
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return true
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},
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},
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})
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useEffect(() => {
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if (!editor) {
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return
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}
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editor.setEditable(!disabled && !isUploading)
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}, [disabled, editor, isUploading])
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useEffect(() => {
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if (!editor || disabled || isUploading || !shouldRestoreFocusRef.current) {
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return
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}
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requestAnimationFrame(() => {
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editor.commands.focus()
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})
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}, [disabled, editor, isUploading])
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async function handleSend() {
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if (!editor || disabled || isUploading) {
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return
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}
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const rawHTML = editor.getHTML()
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if (hasUploadingEditorImages(rawHTML, uploadedImagesRef.current)) {
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return
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}
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const html = buildSendableEditorHTML(rawHTML, uploadedImagesRef.current)
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if (!isMeaningfulHTML(html)) {
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return
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}
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await onSendRef.current(html)
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editor.commands.clearContent(true)
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revokeEditorObjectUrls(objectUrlsRef.current)
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uploadedImagesRef.current.clear()
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}
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async function handleSelectImage(event: React.ChangeEvent<HTMLInputElement>) {
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const file = event.target.files?.[0]
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event.target.value = ""
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if (!file || !editor || disabled || isUploading) {
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if (editor && shouldRestoreFocusRef.current) {
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requestAnimationFrame(() => {
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editor.commands.focus()
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})
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}
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return
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}
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await insertUploadedImage(file)
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}
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async function insertUploadedImage(file: File) {
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if (!editor || disabled || isUploading) {
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return
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}
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shouldRestoreFocusRef.current = true
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const objectUrl = URL.createObjectURL(file)
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objectUrlsRef.current.add(objectUrl)
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const placeholderId = `uploading-${generateUUID()}`
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editor
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.chain()
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.focus()
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.setImage({
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src: objectUrl,
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alt: file.name || "uploading-image",
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title: placeholderId,
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})
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.run()
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try {
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setLocalUploading(true)
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const uploaded = await onUploadImageRef.current(file)
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if (!uploaded?.assetId || !uploaded.provider || !uploaded.storageKey) {
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removeEditorImageByTitle(editor, placeholderId)
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revokeEditorObjectUrl(objectUrlsRef.current, objectUrl)
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return
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}
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markEditorImageUploadedByTitle(
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editor,
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placeholderId,
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uploaded,
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uploadedImagesRef.current
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)
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} finally {
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setLocalUploading(false)
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requestAnimationFrame(() => {
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if (!disabled && shouldRestoreFocusRef.current) {
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editor.commands.focus()
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}
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})
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}
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}
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async function handleSelectAttachment(
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event: React.ChangeEvent<HTMLInputElement>
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) {
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const file = event.target.files?.[0]
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event.target.value = ""
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if (!file || disabled || isUploading) {
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if (editor && shouldRestoreFocusRef.current) {
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requestAnimationFrame(() => {
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editor.commands.focus()
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})
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}
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return
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}
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shouldRestoreFocusRef.current = editor?.isFocused ?? true
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setLocalUploading(true)
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try {
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await onSendAttachmentRef.current(file)
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} finally {
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setLocalUploading(false)
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requestAnimationFrame(() => {
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if (editor && !disabled && shouldRestoreFocusRef.current) {
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editor.commands.focus()
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}
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})
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}
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}
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return (
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// <div className="border-t border-border bg-card px-3 pb-3 pt-2">
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<div className="p-3">
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<div className="rounded-xl border border-border bg-background p-2 shadow-[0_8px_24px_rgba(15,23,42,0.05)] dark:shadow-none">
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<input
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ref={imageInputRef}
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type="file"
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accept="image/*"
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className="hidden"
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onChange={handleSelectImage}
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/>
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<input
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ref={attachmentInputRef}
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type="file"
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className="hidden"
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onChange={handleSelectAttachment}
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/>
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<div className="min-h-10">
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<EditorContent editor={editor} />
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</div>
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<div className="mt-2 flex items-center justify-between">
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<div className="flex items-center gap-1.5">
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<Button
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type="button"
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variant="ghost"
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size="icon"
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onMouseDown={(event) => event.preventDefault()}
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onClick={() => {
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shouldRestoreFocusRef.current = editor?.isFocused ?? true
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imageInputRef.current?.click()
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}}
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disabled={disabled || isUploading}
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aria-label={isUploading ? "图片上传中" : "发送图片"}
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title={isUploading ? "图片上传中" : "发送图片"}
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className="text-muted-foreground hover:bg-muted hover:text-foreground"
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>
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<ImageIcon />
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</Button>
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<Button
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type="button"
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variant="ghost"
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size="icon"
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onMouseDown={(event) => event.preventDefault()}
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onClick={() => {
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shouldRestoreFocusRef.current = editor?.isFocused ?? true
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attachmentInputRef.current?.click()
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}}
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disabled={disabled || isUploading}
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aria-label={isUploading ? "附件上传中" : "发送附件"}
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title={isUploading ? "附件上传中" : "发送附件"}
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className="text-muted-foreground hover:bg-muted hover:text-foreground"
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>
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<PaperclipIcon />
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</Button>
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</div>
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<div className="flex items-center gap-2">
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<p className="text-[10px] text-muted-foreground">Enter 发送</p>
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<Button
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type="button"
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size="icon"
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onClick={() => void handleSend()}
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disabled={disabled || isUploading}
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aria-label="发送"
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title="发送"
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className="bg-primary text-white shadow-[0_10px_20px_color-mix(in_srgb,var(--primary)_24%,transparent)] hover:bg-primary hover:brightness-105"
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>
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<SendHorizonalIcon />
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</Button>
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</div>
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</div>
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</div>
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</div>
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)
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}
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function isMeaningfulHTML(html: string) {
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const normalized = html
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.replace(/<p><\/p>/g, "")
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.replace(/<p><br><\/p>/g, "")
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.replace(/\s+/g, "")
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if (/<img[\s\S]*?>/i.test(normalized)) {
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return true
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}
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const plainText = normalized.replace(/<[^>]+>/g, "").trim()
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return plainText !== ""
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}
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function getClipboardImageFile(data: DataTransfer | null) {
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if (!data) {
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return null
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}
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for (const item of Array.from(data.items)) {
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if (item.kind === "file" && item.type.startsWith("image/")) {
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return item.getAsFile()
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}
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}
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return null
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}
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