Files
ai-agent/widget/components/im/message-editor.tsx
T

366 lines
12 KiB
TypeScript

"use client";
import { useEffect, useRef, useState } from "react";
import { EditorContent, useEditor } from "@tiptap/react";
import StarterKit from "@tiptap/starter-kit";
import Image from "@tiptap/extension-image";
import Placeholder from "@tiptap/extension-placeholder";
import { ImageIcon, PaperclipIcon, SendHorizonalIcon } from "lucide-react";
import { generateUUID } from "@/lib/utils";
type UploadedImage = {
assetId: string;
provider: string;
storageKey: string;
url: string;
filename?: string;
};
const MessageImage = Image.extend({
addAttributes() {
return {
...this.parent?.(),
dataAssetId: {
default: null,
parseHTML: (element) => element.getAttribute("data-asset-id"),
renderHTML: (attributes) =>
attributes.dataAssetId ? { "data-asset-id": attributes.dataAssetId } : {},
},
dataProvider: {
default: null,
parseHTML: (element) => element.getAttribute("data-provider"),
renderHTML: (attributes) =>
attributes.dataProvider ? { "data-provider": attributes.dataProvider } : {},
},
dataStorageKey: {
default: null,
parseHTML: (element) => element.getAttribute("data-storage-key"),
renderHTML: (attributes) =>
attributes.dataStorageKey ? { "data-storage-key": attributes.dataStorageKey } : {},
},
};
},
});
type MessageEditorProps = {
disabled?: boolean;
uploadingAsset?: boolean;
onSend: (html: string) => Promise<void>;
onUploadImage: (file: File) => Promise<UploadedImage | null>;
onSendAttachment: (file: File) => Promise<void>;
};
export function MessageEditor({
disabled = false,
uploadingAsset = false,
onSend,
onUploadImage,
onSendAttachment,
}: MessageEditorProps) {
const [localUploading, setLocalUploading] = useState(false);
const imageInputRef = useRef<HTMLInputElement | null>(null);
const attachmentInputRef = useRef<HTMLInputElement | null>(null);
const onSendRef = useRef(onSend);
const onUploadImageRef = useRef(onUploadImage);
const onSendAttachmentRef = useRef(onSendAttachment);
const shouldRestoreFocusRef = useRef(false);
const isUploading = uploadingAsset || localUploading;
useEffect(() => {
onSendRef.current = onSend;
}, [onSend]);
useEffect(() => {
onUploadImageRef.current = onUploadImage;
}, [onUploadImage]);
useEffect(() => {
onSendAttachmentRef.current = onSendAttachment;
}, [onSendAttachment]);
const editor = useEditor({
immediatelyRender: false,
extensions: [
StarterKit.configure({
heading: false,
blockquote: false,
codeBlock: false,
bulletList: false,
orderedList: false,
horizontalRule: false,
}),
MessageImage,
Placeholder.configure({
placeholder: "输入消息,Enter 发送,Shift + Enter 换行",
}),
],
content: "",
editorProps: {
attributes: {
class:
"cs-agent-scrollbar min-h-12 max-h-40 overflow-y-auto px-1.5 py-1 text-[13px] leading-6 text-slate-900 outline-none [&_p]:m-0 [&_p+*]:mt-2 [&_img]:my-2 [&_img]:max-h-64 [&_img]:rounded-xl [&_img]:object-contain",
},
handleKeyDown: (_view, event) => {
if (event.key === "Enter" && !event.shiftKey) {
event.preventDefault();
void handleSend();
return true;
}
return false;
},
handlePaste: (_view, event) => {
if (disabled || isUploading) {
return false;
}
const imageFile = getClipboardImageFile(event.clipboardData);
if (!imageFile) {
return false;
}
event.preventDefault();
void insertUploadedImage(imageFile);
return true;
},
},
});
useEffect(() => {
if (!editor) {
return;
}
editor.setEditable(!disabled && !isUploading);
}, [disabled, editor, isUploading]);
useEffect(() => {
if (!editor || disabled || isUploading || !shouldRestoreFocusRef.current) {
return;
}
requestAnimationFrame(() => {
editor.commands.focus();
});
}, [disabled, editor, isUploading]);
async function handleSend() {
if (!editor || disabled || isUploading) {
return;
}
const html = editor.getHTML();
if (!isMeaningfulHTML(html)) {
return;
}
await onSendRef.current(html);
editor.commands.clearContent(true);
}
async function handleSelectImage(event: React.ChangeEvent<HTMLInputElement>) {
const file = event.target.files?.[0];
event.target.value = "";
if (!file || !editor || disabled || isUploading) {
if (editor && shouldRestoreFocusRef.current) {
requestAnimationFrame(() => {
editor.commands.focus();
});
}
return;
}
await insertUploadedImage(file);
}
async function insertUploadedImage(file: File) {
if (!editor || disabled || isUploading) {
return;
}
shouldRestoreFocusRef.current = true;
const objectUrl = URL.createObjectURL(file);
const placeholderId = `uploading-${generateUUID()}`;
editor
.chain()
.focus()
.setImage({
src: objectUrl,
alt: file.name || "uploading-image",
title: placeholderId,
})
.run();
try {
setLocalUploading(true);
const uploaded = await onUploadImageRef.current(file);
if (!uploaded?.url) {
removeImageByTitle(editor, placeholderId);
return;
}
replaceImageSourceByTitle(editor, placeholderId, uploaded);
} finally {
setLocalUploading(false);
URL.revokeObjectURL(objectUrl);
requestAnimationFrame(() => {
if (!disabled && shouldRestoreFocusRef.current) {
editor.commands.focus();
}
});
}
}
async function handleSelectAttachment(
event: React.ChangeEvent<HTMLInputElement>,
) {
const file = event.target.files?.[0];
event.target.value = "";
if (!file || disabled || isUploading) {
if (editor && shouldRestoreFocusRef.current) {
requestAnimationFrame(() => {
editor.commands.focus();
});
}
return;
}
shouldRestoreFocusRef.current = editor?.isFocused ?? true;
setLocalUploading(true);
try {
await onSendAttachmentRef.current(file);
} finally {
setLocalUploading(false);
requestAnimationFrame(() => {
if (editor && !disabled && shouldRestoreFocusRef.current) {
editor.commands.focus();
}
});
}
}
return (
<div className="px-3 pb-3 pt-2">
<div className="rounded-xl border border-white/60 bg-white/78 p-2 shadow-[0_10px_24px_rgba(15,23,42,0.05)] backdrop-blur">
<input
ref={imageInputRef}
type="file"
accept="image/*"
className="hidden"
onChange={handleSelectImage}
/>
<input
ref={attachmentInputRef}
type="file"
className="hidden"
onChange={handleSelectAttachment}
/>
<div className="min-h-10">
<EditorContent editor={editor} />
</div>
<div className="mt-1.5 flex items-center justify-between">
<div className="flex items-center gap-1.5">
<button
type="button"
onMouseDown={(event) => event.preventDefault()}
onClick={() => {
shouldRestoreFocusRef.current = editor?.isFocused ?? true;
imageInputRef.current?.click();
}}
disabled={disabled || isUploading}
aria-label={isUploading ? "图片上传中" : "发送图片"}
className="inline-flex size-8 shrink-0 items-center justify-center rounded-xl border border-slate-200/80 bg-white/90 text-slate-500 shadow-[0_8px_18px_rgba(15,23,42,0.05)] transition duration-200 hover:-translate-y-0.5 hover:text-slate-700 disabled:translate-y-0 disabled:cursor-not-allowed disabled:bg-slate-100 disabled:text-slate-300"
>
<ImageIcon className="size-4" />
</button>
<button
type="button"
onMouseDown={(event) => event.preventDefault()}
onClick={() => {
shouldRestoreFocusRef.current = editor?.isFocused ?? true;
attachmentInputRef.current?.click();
}}
disabled={disabled || isUploading}
aria-label={isUploading ? "附件上传中" : "发送附件"}
className="inline-flex size-8 shrink-0 items-center justify-center rounded-xl border border-slate-200/80 bg-white/90 text-slate-500 shadow-[0_8px_18px_rgba(15,23,42,0.05)] transition duration-200 hover:-translate-y-0.5 hover:text-slate-700 disabled:translate-y-0 disabled:cursor-not-allowed disabled:bg-slate-100 disabled:text-slate-300"
>
<PaperclipIcon className="size-4" />
</button>
</div>
<div className="flex items-center gap-1">
<p className="text-[10px] text-slate-400">Enter 发送</p>
<button
type="button"
onClick={() => void handleSend()}
disabled={disabled || isUploading}
aria-label="发送"
className="inline-flex size-8 shrink-0 items-center justify-center rounded-xl bg-[linear-gradient(135deg,var(--primary),color-mix(in_srgb,var(--primary)_75%,white_25%))] text-white shadow-[0_10px_20px_color-mix(in_srgb,var(--primary)_28%,transparent)] transition duration-200 hover:-translate-y-0.5 hover:brightness-105 disabled:translate-y-0 disabled:cursor-not-allowed disabled:bg-slate-300 disabled:shadow-none"
>
<SendHorizonalIcon className="size-4" />
</button>
</div>
</div>
</div>
</div>
);
}
function isMeaningfulHTML(html: string) {
const normalized = html
.replace(/<p><\/p>/g, "")
.replace(/<p><br><\/p>/g, "")
.replace(/\s+/g, "");
if (/<img[\s\S]*?>/i.test(normalized)) {
return true;
}
const plainText = normalized.replace(/<[^>]+>/g, "").trim();
return plainText !== "";
}
function getClipboardImageFile(clipboardData: DataTransfer | null) {
if (!clipboardData) {
return null;
}
for (const item of Array.from(clipboardData.items)) {
if (item.kind === "file" && item.type.startsWith("image/")) {
return item.getAsFile();
}
}
return null;
}
function removeImageByTitle(editor: NonNullable<ReturnType<typeof useEditor>>, title: string) {
const { state } = editor;
let targetPos: number | null = null;
state.doc.descendants((node, pos) => {
if (node.type.name === "image" && node.attrs.title === title) {
targetPos = pos;
return false;
}
return true;
});
if (targetPos === null) {
return;
}
editor.chain().focus().deleteRange({ from: targetPos, to: targetPos + 1 }).run();
}
function replaceImageSourceByTitle(
editor: NonNullable<ReturnType<typeof useEditor>>,
title: string,
uploaded: UploadedImage,
) {
const { state, view } = editor;
let targetPos: number | null = null;
state.doc.descendants((node, pos) => {
if (node.type.name === "image" && node.attrs.title === title) {
targetPos = pos;
return false;
}
return true;
});
if (targetPos === null) {
return;
}
const transaction = view.state.tr.setNodeMarkup(targetPos, undefined, {
...view.state.doc.nodeAt(targetPos)?.attrs,
src: uploaded.url,
alt: uploaded.filename || "image",
dataAssetId: uploaded.assetId,
dataProvider: uploaded.provider,
dataStorageKey: uploaded.storageKey,
title: "",
});
view.dispatch(transaction);
}