React 管理頁面和小工具

原生外掛程式可以使用自訂 React 頁面和儀表板小工具擴充管理面板 — 沙箱外掛程式則將其 UI 描述為 Block Kit，因為將外掛程式 JavaScript 傳送到管理介面會破壞沙箱隔離。

如果您的外掛程式只需要一個設定表單，自動產生的 admin.settingsSchema 表單（參見您的第一個原生外掛程式）無需編寫任何 React 即可涵蓋大多數情況。當您需要比 settingsSchema 提供的更豐富的 UI 時，請使用自訂元件。

管理進入點

具有管理 UI 的外掛程式從 admin 進入點匯出 pages 和 widgets 物件：

import { SEOSettingsPage } from "./components/SEOSettingsPage";
import { SEODashboardWidget } from "./components/SEODashboardWidget";

export const widgets = {
	"seo-overview": SEODashboardWidget,
};

export const pages = {
	"/settings": SEOSettingsPage,
};

在 package.json 中設定進入點：

{
	"exports": {
		".": "./dist/index.js",
		"./admin": "./dist/admin.js"
	}
}

從 definePlugin() 引用它：

definePlugin({
	id: "seo",
	version: "1.0.0",

	admin: {
		entry: "@my-org/plugin-seo/admin",
		pages: [{ path: "/settings", label: "SEO Settings", icon: "settings" }],
		widgets: [{ id: "seo-overview", title: "SEO Overview", size: "half" }],
	},
});

描述器需要一個匹配的 adminEntry，以便 EmDash 知道在建置時在哪裡找到元件：

adminEntry: "@my-org/plugin-seo/admin",

管理頁面

管理頁面是掛載在 /_emdash/admin/plugins/<plugin-id>/<path> 下的 React 元件。

頁面定義

admin: {
	pages: [
		{
			path: "/settings",
			label: "Settings",
			icon: "settings",
		},
		{
			path: "/reports",
			label: "Reports",
			icon: "chart",
		},
	],
}

頁面元件

import { useState, useEffect } from "react";
import { usePluginAPI } from "@emdash-cms/admin";

export function SettingsPage() {
	const api = usePluginAPI();
	const [settings, setSettings] = useState<Record<string, unknown>>({});
	const [saving, setSaving] = useState(false);

	useEffect(() => {
		api.get("settings").then(setSettings);
	}, []);

	const handleSave = async () => {
		setSaving(true);
		await api.post("settings/save", settings);
		setSaving(false);
	};

	return (
		<div>
			<h1>Plugin Settings</h1>

			<label>
				Site Title
				<input
					type="text"
					value={(settings.siteTitle as string) || ""}
					onChange={(e) => setSettings({ ...settings, siteTitle: e.target.value })}
				/>
			</label>

			<button onClick={handleSave} disabled={saving}>
				{saving ? "Saving..." : "Save Settings"}
			</button>
		</div>
	);
}

外掛程式 API 掛鉤

usePluginAPI() 呼叫您的外掛程式路由，自動新增外掛程式 ID 前綴和 X-EmDash-Request: 1 CSRF 標頭：

import { usePluginAPI } from "@emdash-cms/admin";

function MyComponent() {
	const api = usePluginAPI();

	const data = await api.get("status");                       // GET /_emdash/api/plugins/<id>/status
	await api.post("settings/save", { enabled: true });          // 帶 JSON 本文的 POST
	const result = await api.get("history?limit=50");            // 支援查詢參數
}

儀表板小工具

小工具出現在管理儀表板上，提供一目了然的資訊。

小工具定義

admin: {
	widgets: [
		{
			id: "seo-overview",
			title: "SEO Overview",
			size: "half",   // "full" | "half" | "third"
		},
	],
}

小工具元件

import { useState, useEffect } from "react";
import { usePluginAPI } from "@emdash-cms/admin";

export function SEOWidget() {
	const api = usePluginAPI();
	const [data, setData] = useState({ score: 0, issues: [] });

	useEffect(() => {
		api.get("analyze").then(setData);
	}, []);

	return (
		<div className="widget-content">
			<div className="score">{data.score}%</div>
			<ul>
				{data.issues.map((issue, i) => (
					<li key={i}>{(issue as { message: string }).message}</li>
				))}
			</ul>
		</div>
	);
}

小工具大小

小工具根據螢幕寬度自動換行。

匯出結構

管理進入點匯出兩個物件：

import { SettingsPage } from "./components/SettingsPage";
import { ReportsPage } from "./components/ReportsPage";
import { StatusWidget } from "./components/StatusWidget";
import { OverviewWidget } from "./components/OverviewWidget";

export const pages = {
	"/settings": SettingsPage,
	"/reports": ReportsPage,
};

export const widgets = {
	status: StatusWidget,
	overview: OverviewWidget,
};

使用管理元件

EmDash 為常見模式提供預建的元件：

import {
	Card,
	Button,
	Input,
	Select,
	Toggle,
	Table,
	Pagination,
	Alert,
	Loading,
} from "@emdash-cms/admin";

function SettingsPage() {
	return (
		<Card title="Settings">
			<Input label="API Key" type="password" />
			<Toggle label="Enabled" defaultChecked />
			<Button variant="primary">Save</Button>
		</Card>
	);
}

自動產生的設定 UI

如果您的外掛程式只需要一個設定表單，請使用 admin.settingsSchema 而無需自訂元件：

admin: {
	settingsSchema: {
		apiKey: { type: "secret", label: "API Key" },
		enabled: { type: "boolean", label: "Enabled", default: true },
	},
},

EmDash 會自動產生設定頁面。僅當您需要超出基本表單的行為時，才使用自訂 React 頁面。

導覽

外掛程式頁面出現在外掛程式名稱下的管理側邊欄中。順序與 admin.pages 陣列匹配。

admin: {
	pages: [
		{ path: "/settings", label: "Settings", icon: "settings" },  // 第一個
		{ path: "/history", label: "History", icon: "history" },     // 第二個
		{ path: "/reports", label: "Reports", icon: "chart" },        // 第三個
	],
}

建置設定

管理元件需要單獨的建置進入點。設定您的打包器：

export default {
	entry: {
		index: "src/index.ts",
		admin: "src/admin.tsx",
	},
	format: "esm",
	dts: true,
	external: ["react", "react-dom", "emdash", "@emdash-cms/admin"],
};

export default {
	entry: ["src/index.ts", "src/admin.tsx"],
	format: "esm",
	dts: true,
	external: ["react", "react-dom", "emdash", "@emdash-cms/admin"],
};

將 React 和 EmDash Admin 作為外部相依性保留，以避免打包重複項。

外掛程式啟用/停用

當外掛程式在管理介面中被停用時：

• 側邊欄連結被隱藏。
• 儀表板小工具不會被轉譯。
• 管理頁面傳回 404。
• 後端掛鉤仍然執行（為了資料安全）。

外掛程式可以檢查其啟用狀態：

const enabled = await ctx.kv.get<boolean>("_emdash:enabled");

完整範例

import { definePlugin } from "emdash";
import type { PluginDescriptor } from "emdash";

export function analyticsPlugin(): PluginDescriptor {
	return {
		id: "analytics",
		version: "1.0.0",
		format: "native",
		entrypoint: "@my-org/plugin-analytics",
		adminEntry: "@my-org/plugin-analytics/admin",
		adminPages: [
			{ path: "/dashboard", label: "Dashboard", icon: "chart" },
			{ path: "/settings", label: "Settings", icon: "settings" },
		],
		adminWidgets: [{ id: "events-today", title: "Events Today", size: "third" }],
	};
}

export function createPlugin() {
	return definePlugin({
		id: "analytics",
		version: "1.0.0",

		capabilities: ["network:request"],
		allowedHosts: ["api.analytics.example.com"],

		storage: {
			events: { indexes: ["type", "createdAt"] },
		},

		admin: {
			entry: "@my-org/plugin-analytics/admin",
			settingsSchema: {
				trackingId: { type: "string", label: "Tracking ID" },
				enabled: { type: "boolean", label: "Enabled", default: true },
			},
			pages: [
				{ path: "/dashboard", label: "Dashboard", icon: "chart" },
				{ path: "/settings", label: "Settings", icon: "settings" },
			],
			widgets: [{ id: "events-today", title: "Events Today", size: "third" }],
		},

		routes: {
			stats: {
				handler: async (ctx) => {
					const today = new Date().toISOString().split("T")[0];
					const count = await ctx.storage.events.count({
						createdAt: { gte: today },
					});
					return { today: count };
				},
			},
		},
	});
}

export default createPlugin;

import { EventsWidget } from "./components/EventsWidget";
import { DashboardPage } from "./components/DashboardPage";
import { SettingsPage } from "./components/SettingsPage";

export const widgets = {
	"events-today": EventsWidget,
};

export const pages = {
	"/dashboard": DashboardPage,
	"/settings": SettingsPage,
};