// ==UserScript==
// @name              Remove Restrictions and Restore Default Behavior
// @name:zh-CN        解除网页限制，恢复默认行为
// @namespace         http://hl-bo.github.io/namespaces/user-script/remove-limits
// @version           0.2
// @license           AGPLv3
// @description       Allows you select, cut, copy, paste, save and open the DevTools on any website.
// @description:zh-CN 恢复选择、剪切、复制、粘贴、保存、右键菜单和打开开发者工具的默认行为
// @author            HL-Bo
// @match             *://*/*
// @exclude           *://vscode.dev/*
// @icon              data:image/png;base64,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
// @grant             none
// @run-at            document-idle
// @downloadURL none
// ==/UserScript==

setInterval(
    // 对抗延迟运行（即在此脚本执行后运行）的禁用程序和循环执行的禁用程序，
    // 每 0.5 秒执行一次。
    // 参见 https://developer.mozilla.org/zh-CN/docs/Web/API/setInterval
    (function() {
        'use strict';
        // 取消通过 JavaScript 实现的禁止复制
        document.oncopy=function(event){ event.returnValue=true; };
        document.body.oncopy=function(event){ event.returnValue=true; };
        // 取消通过 JavaScript 实现的禁止文字选择
        document.onselectstart=function(event){ event.returnValue=true; };
        document.body.onselectstart=function(event){ event.returnValue=true; };
        // 取消通过 JavaScript 实现的禁止右键菜单
        document.oncontextmenu=function(event){ event.returnValue=true; };
        document.body.oncontextmenu=function(event){ event.returnValue=true; };
        // 取消通过 JavaScript 实现的禁止剪切
        document.oncut = function(event){ event.returnValue=true; };
        document.body.oncut = function(event){ event.returnValue=true; };
        // 取消通过 JavaScript 实现的禁止粘贴
        document.onpaste = function (event) { event.returnValue=true; };
        document.body.onpaste = function (event) { event.returnValue=true; };
        // 取消通过 CSS 实现的禁止选中
        document.body.style.webkitUserSelect = 'auto'; // Firefox
        document.body.style.userSelect = 'auto'; // Chrome
        // 取消通过 JavaScript 实现的禁用快捷键
        function allow_key_event(event) {
            var keyCode = event.keyCode || event.which || event.charCode;
            var ctrlKey = event.ctrlKey || event.metaKey;
            var shiftKey = event.shiftKey;
            if (ctrlKey && (keyCode == 83 || keyCode == 85 || keyCode == 67 || keyCode == 86 || keyCode == 88)) {
                // Ctrl+S (save), Ctrl+U (view-source), Ctrl+C (copy), Ctrl+V (paste), Ctrl+X (cut)
                event.returnValue=true;
            }
            else if (ctrlKey && shiftKey && (keyCode == 73 || keyCode == 74 || keyCode == 67)) {
                // Ctrl+Shift+I (devtools), Ctrl+Shift+J (console), Ctrl+Shift+C (elements)
                event.returnValue=true;
            } else if (keyCode && keyCode == 123) { // F12
                event.returnValue=true;
            }
        }
        document.onkeypress = allow_key_event;
        document.body.onkeypress = allow_key_event;
        document.onkeydown = allow_key_event;
        document.body.onkeydown = allow_key_event;
        document.onkeyup = allow_key_event;
        document.body.onkeyup = allow_key_event;
    }), 500
);