// ==UserScript==
// @name         WebIDE增强脚本
// @namespace    http://ide.yumc.pw/
// @version      0.1
// @description  Coding WebIDE 增强脚本
// @author       MiaoWoo
// @match        http*://ide.yumc.pw/ws/*
// @grant        none
// ==/UserScript==

(function() {
    'use strict';
    setTimeout(function (){
        window.onbeforeunload = function () { return false; }
        console.log('已阻止 Ctrl + W 关闭页面...')
    }, 1000)
    var dqKeys = function (keys, isOrder, sucFuc, cancelFuc) {
        return new dqKeys.fn.init(keys, isOrder, sucFuc, cancelFuc);
    }
    dqKeys.fn = dqKeys.prototype = {
        'version': '1.0.0', //版本号
        'author': 'lidequan', //作者
        'rightKeys': {}, //监听的按键{key:code},code为按键对应的ascii码
        'curKeys': [], //当前按下的键
        'sucFuc': null, //完成按键的回调函数
        'cancelFuc': null, //完成按键取消后的回调函数
        'isFinsh': false, //判断是否完成按键
        'isOrder': false, //按键是否有相应的顺序
        init: function (keys, isOrder, sucFuc, cancelFuc) {
            this.rightKeys = keys;
            this.sucFuc = sucFuc;
            this.cancelFuc = cancelFuc;
            this.isOrder = isOrder;
            return this;
        },
        listenkeys: function () { //监听用户键盘操作
            var _self = this;
            _self.addListener('keydown', function (oEvent) {
                var aEvent = oEvent || window.event;
                if (!_self.arrayContain(_self.curKeys, oEvent.keyCode)) {
                    if (_self.isOrder && _self.getNextKey() == oEvent.keyCode) {
                        _self.curKeys.push(oEvent.keyCode);
                    } else if (!_self.isOrder) {
                        _self.curKeys.push(oEvent.keyCode);
                    }
                }
                if (_self.checkResult(_self.rightKeys, _self.curKeys)) {
                    if (_self.sucFuc && !_self.isFinsh) {
                        _self.sucFuc();
                    }
                    _self.isFinsh = true;
                }
            });
            _self.addListener('keyup', function (oEvent) {
                var aEvent = oEvent || window.event;
                if (_self.checkResult(_self.rightKeys, _self.curKeys) && _self.isFinsh) {
                    //完成按键,又取消的事件
                    if (_self.cancelFuc) {
                        _self.cancelFuc();
                    }
                }
                _self.curKey = _self.remove(_self.curKeys, oEvent.keyCode);
                _self.isFinsh = false;
            });
        },
        arrayContain: function (arr, val) { //判断数组中是否包含某个元素
            return (arr.indexOf(val) == -1) ? false : true;
        },
        checkResult: function (json, arr) { //判断用户是否按下监听的所有按键
            for (var i in json) {
                if (arr.indexOf(json[i]) == -1) {
                    return false;
                }
            }
            return true;
        },
        remove: function (arr, val) { //从数组中移除某个元素
            var index = arr.indexOf(val);
            if (index > -1) {
                arr.splice(index, 1);
            }
            return arr;
        },
        getNextKey: function () { //获取下一次按键对应的ascii码
            for (var i in this.rightKeys) {
                if (this.curKeys.indexOf(this.rightKeys[i]) == -1) {
                    return this.rightKeys[i];
                }
            }
            return null;
        },
        addListener: function (ev, fn, bool) { //事件绑定
            if (document.attachEvent) {
                document.attachEvent('on' + ev, fn);
            } else {
                document.addEventListener(ev, fn, bool);
            }
        }

    }
    dqKeys.fn.init.prototype = dqKeys.fn;
    dqKeys({'alt':18,'w':87}, true, function(){
    },function(){
        document.getElementsByClassName('tab-label active')[0].childNodes[2].childNodes[0].click();
    }).listenkeys();
})();