libCtxtMenu

Simple adapter for adding legacy browsers rightclick menu commands.

Script này sẽ không được không được cài đặt trực tiếp. Nó là một thư viện cho các script khác để bao gồm các chỉ thị meta // @require https://update.greasyfork.org/scripts/435215/986494/libCtxtMenu.js

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(Tôi đã có Trình quản lý tập lệnh người dùng, hãy cài đặt nó!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// ==UserLibrary==
// @name         libCtxtMenu
// @namespace    https://openuserjs.org/users/Anakunda
// @version      1.00.0
// @author       Anakunda
// @license      GPL-3.0-or-later
// @copyright    2021, Anakunda (https://openuserjs.org/users/Anakunda)
// ==/UserScript==
// ==/UserLibrary==

'use strict';

class ContextMenu {
	constructor(id, create = true) {
		if (!id) {
			let dt = new Date().getTime();
			this.id = 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
				const r = (dt + Math.random() * 16) % 16 | 0;
				dt = Math.floor(dt / 16);
				return (c == 'x' ? r : (r & 0x3 | 0x8)).toString(16);
			});
		}
		if (!(this.new = (this.menu = document.body.querySelector(`menu[type="context"][id="${id}"]`)) == null)) return;
		this.menu = document.createElement('MENU');
		this.menu.type = 'context';
		this.menu.id = id;
		if (create) this.create();
	}

	create() {
		if (this.menu.parentNode == null) document.body.append(this.menu);
	}
	destroy() {
		if (this.menu.parentNode != null) this.menu.parentNode.removeChild(this.menu);
	}
	addItem(caption, callback) {
		if (!this.new) return false;
		console.assert(this.menu instanceof HTMLMenuElement);
		const menuItem = document.createElement('MENUITEM');
		if (caption) menuItem.label = caption; else return;
		if (typeof callback == 'function') {
			menuItem.type = 'command';
			menuItem.onclick = evt => {
				console.assert(this.target instanceof HTMLElement);
				return this.target instanceof HTMLElement ? callback(this.target) : false; //callback.call(this.target, this.target)
			};
		}
		this.menu.append(menuItem);
		return true;
	}

	attach(element) {
		if (!(element instanceof HTMLElement)) throw 'Invalid argument';
		console.assert(this.menu instanceof HTMLMenuElement);
		this.create();
		element.setAttribute('contextmenu', this.menu.id);
		element.oncontextmenu = evt => { this.target = evt.currentTarget };
	}
	detach(element) {
		if (!(element instanceof HTMLElement)) throw 'Invalid argument';
		console.assert(this.menu instanceof HTMLMenuElement);
		if (element.getAttribute('contextmenu') != this.menu.id) return;
		element.oncontextmenu = null;
		element.removeAttribute('contextmenu');
	}
}