Force Enable Vue Devtools

Force enable Vue Devtools for production-build apps of Vue 2 or Vue 3.
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// ==UserScript==
// @name               Force Enable Vue Devtools
// @name:zh-CN         强制启用 Vue Devtools
// @name:zh-TW         強制啟用 Vue Devtools
// @version            1.0.1
// @description        Force enable Vue Devtools for production-build apps of Vue 2 or Vue 3.
// @description:zh-CN  强制启用 Vue Devtools，适用于 Vue 2 或 Vue 3 的生产环境构建应用。
// @description:zh-TW  強制啟用 Vue Devtools，適用於 Vue 2 或 Vue 3 的生產環境構建應用。
// @author             Kevin Deng <[email protected]>
// @homepage           https://github.com/sxzz/userscripts
// @supportURL         https://github.com/sxzz/userscripts/issues
// @license            MIT
// @contributionURL    https://github.com/sponsors/sxzz
// @run-at             document-start
// @noframes           
// @include            *
// @namespace          https://github.com/sxzz/userscripts/blob/main/dist/vue-devtools.user.js
// ==/UserScript==
(function() {
	/* @license
	* Refer from https://github.com/EHfive/userscripts/tree/master/userscripts/enbale-vue-devtools
	*/
	let initted = false;
	main();
	document.addEventListener("DOMContentLoaded", () => main());
	globalThis.requestIdleCallback?.(() => main());
	function main() {
		if (initted) return;
		if (!getDevtoolsHook()) {
			console.warn("No Vue Devtools hook found, waiting");
			return;
		}
		initted = true;
		observePage();
	}
	function getDevtoolsHook() {
		return globalThis.__VUE_DEVTOOLS_GLOBAL_HOOK__;
	}
	function registerVue2App(app) {
		let Vue = app.constructor;
		while (Vue.super) Vue = Vue.super;
		Vue.config.devtools = true;
		console.info("enabling devtools for Vue instance", app);
		getDevtoolsHook().emit("init", Vue);
	}
	function registerVue3App(app) {
		const devtoolsHook = getDevtoolsHook();
		if (!Array.isArray(devtoolsHook.apps)) return;
		if (devtoolsHook.apps.includes(app)) return;
		const version = app.version;
		if (!version) return;
		console.info("enabling devtools for Vue 3 instance", app);
		devtoolsHook.emit("app:init", app, version, {
			Fragment: void 0,
			Text: void 0,
			Comment: void 0,
			Static: void 0
		});
		const unmount = app.unmount.bind(app);
		app.unmount = function() {
			devtoolsHook.emit("app:unmount", app);
			unmount();
		};
	}
	function checkVue2Instance(target) {
		const vue = target && target.__vue__;
		return !!(vue && typeof vue === "object" && vue._isVue && typeof vue.constructor === "function");
	}
	function checkVue3Instance(target) {
		return !!(target && target.__vue_app__);
	}
	function observePage() {
		const roots = /* @__PURE__ */ new WeakSet();
		const observer = new MutationObserver(() => {
			for (const el of Array.from(document.querySelectorAll("*"))) if (checkVue3Instance(el)) {
				const app = el.__vue_app__;
				if (roots.has(app)) continue;
				roots.add(app);
				registerVue3App(app);
			} else if (checkVue2Instance(el)) {
				const instance = el.__vue__;
				const root = instance.$parent ? instance.$root : instance;
				if (roots.has(root)) continue;
				roots.add(root);
				registerVue2App(root);
			}
		});
		observer.observe(document.documentElement, {
			attributes: true,
			subtree: true,
			childList: true
		});
		return observer;
	}
})();