/source/ueditor/umeditor.js

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/*!
 * UEditor Mini版本
 * version: 1.0.0
 * build: Tue Sep 17 2013 15:57:30 GMT+0800 (CST)
 */

(function(){

UMEDITOR_CONFIG = window.UMEDITOR_CONFIG || {};

window.UM = {
    plugins : {},

    commands : {},

    I18N : {},

    version : "1.0.0"
};

var dom = UM.dom = {};
/**
 * @file
 * @name UM.browser
 * @short Browser
 * @desc UEditor中采用的浏览器判断模块
 */
var browser = UM.browser = function(){
    var agent = navigator.userAgent.toLowerCase(),
        opera = window.opera,
        browser = {
        /**
         * 检测浏览器是否为IE
         * @name ie
         * @grammar UM.browser.ie  => true|false
         */
        ie		: !!window.ActiveXObject,

        /**
         * 检测浏览器是否为Opera
         * @name opera
         * @grammar UM.browser.opera  => true|false
         */
        opera	: ( !!opera && opera.version ),

        /**
         * 检测浏览器是否为webkit内核
         * @name webkit
         * @grammar UM.browser.webkit  => true|false
         */
        webkit	: ( agent.indexOf( ' applewebkit/' ) > -1 ),

        /**
         * 检测浏览器是否为mac系统下的浏览器
         * @name mac
         * @grammar UM.browser.mac  => true|false
         */
        mac	: ( agent.indexOf( 'macintosh' ) > -1 ),

        /**
         * 检测浏览器是否处于怪异模式
         * @name quirks
         * @grammar UM.browser.quirks  => true|false
         */
        quirks : ( document.compatMode == 'BackCompat' )
    };
    /**
     * 检测浏览器是否处为gecko内核
     * @name gecko
     * @grammar UM.browser.gecko  => true|false
     */
    browser.gecko =( navigator.product == 'Gecko' && !browser.webkit && !browser.opera );

    var version = 0;

    // Internet Explorer 6.0+
    if ( browser.ie ){
        version = parseFloat( agent.match( /msie (\d+)/ )[1] );
        /**
         * 检测浏览器是否为 IE9 模式
         * @name ie9Compat
         * @grammar UM.browser.ie9Compat  => true|false
         */
        browser.ie9Compat = document.documentMode == 9;
        /**
         * 检测浏览器是否为 IE8 浏览器
         * @name ie8
         * @grammar     UM.browser.ie8  => true|false
         */
        browser.ie8 = !!document.documentMode;

        /**
         * 检测浏览器是否为 IE8 模式
         * @name ie8Compat
         * @grammar     UM.browser.ie8Compat  => true|false
         */
        browser.ie8Compat = document.documentMode == 8;

        /**
         * 检测浏览器是否运行在 兼容IE7模式
         * @name ie7Compat
         * @grammar     UM.browser.ie7Compat  => true|false
         */
        browser.ie7Compat = ( ( version == 7 && !document.documentMode )
                || document.documentMode == 7 );

        /**
         * 检测浏览器是否IE6模式或怪异模式
         * @name ie6Compat
         * @grammar     UM.browser.ie6Compat  => true|false
         */
        browser.ie6Compat = ( version < 7 || browser.quirks );

        browser.ie9above = version > 8;

        browser.ie9below = version < 9
    }

    // Gecko.
    if ( browser.gecko ){
        var geckoRelease = agent.match( /rv:([\d\.]+)/ );
        if ( geckoRelease )
        {
            geckoRelease = geckoRelease[1].split( '.' );
            version = geckoRelease[0] * 10000 + ( geckoRelease[1] || 0 ) * 100 + ( geckoRelease[2] || 0 ) * 1;
        }
    }
    /**
     * 检测浏览器是否为chrome
     * @name chrome
     * @grammar     UM.browser.chrome  => true|false
     */
    if (/chrome\/(\d+\.\d)/i.test(agent)) {
        browser.chrome = + RegExp['\x241'];
    }
    /**
     * 检测浏览器是否为safari
     * @name safari
     * @grammar     UM.browser.safari  => true|false
     */
    if(/(\d+\.\d)?(?:\.\d)?\s+safari\/?(\d+\.\d+)?/i.test(agent) && !/chrome/i.test(agent)){
    	browser.safari = + (RegExp['\x241'] || RegExp['\x242']);
    }


    // Opera 9.50+
    if ( browser.opera )
        version = parseFloat( opera.version() );

    // WebKit 522+ (Safari 3+)
    if ( browser.webkit )
        version = parseFloat( agent.match( / applewebkit\/(\d+)/ )[1] );

    /**
     * 浏览器版本判断
     * IE系列返回值为5,6,7,8,9,10等
     * gecko系列会返回10900，158900等.
     * webkit系列会返回其build号 (如 522等).
     * @name version
     * @grammar     UM.browser.version  => number
     * @example
     * if ( UM.browser.ie && UM.browser.version == 6 ){
     *     alert( "Ouch!居然是万恶的IE6!" );
     * }
     */
    browser.version = version;

    /**
     * 是否是兼容模式的浏览器
     * @name isCompatible
     * @grammar  UM.browser.isCompatible  => true|false
     * @example
     * if ( UM.browser.isCompatible ){
     *     alert( "你的浏览器相当不错哦！" );
     * }
     */
    browser.isCompatible =
        !browser.mobile && (
        ( browser.ie && version >= 6 ) ||
        ( browser.gecko && version >= 10801 ) ||
        ( browser.opera && version >= 9.5 ) ||
        ( browser.air && version >= 1 ) ||
        ( browser.webkit && version >= 522 ) ||
        false );
    return browser;
}();
//快捷方式
var ie = browser.ie,
    webkit = browser.webkit,
    gecko = browser.gecko,
    opera = browser.opera;
/**
 * @file
 * @name UM.Utils
 * @short Utils
 * @desc UEditor封装使用的静态工具函数
 * @import editor.js
 */
var utils = UM.utils = {
    /**
     * 遍历数组，对象，nodeList
     * @name each
     * @grammar UM.utils.each(obj,iterator,[context])
     * @since 1.2.4+
     * @desc
     * * obj 要遍历的对象
     * * iterator 遍历的方法,方法的第一个是遍历的值，第二个是索引，第三个是obj
     * * context  iterator的上下文
     * @example
     * UM.utils.each([1,2],function(v,i){
     *     console.log(v)//值
     *     console.log(i)//索引
     * })
     * UM.utils.each(document.getElementsByTagName('*'),function(n){
     *     console.log(n.tagName)
     * })
     */
    each : function(obj, iterator, context) {
        if (obj == null) return;
        if (obj.length === +obj.length) {
            for (var i = 0, l = obj.length; i < l; i++) {
                if(iterator.call(context, obj[i], i, obj) === false)
                    return false;
            }
        } else {
            for (var key in obj) {
                if (obj.hasOwnProperty(key)) {
                    if(iterator.call(context, obj[key], key, obj) === false)
                        return false;
                }
            }
        }
    },

    makeInstance:function (obj) {
        var noop = new Function();
        noop.prototype = obj;
        obj = new noop;
        noop.prototype = null;
        return obj;
    },
    /**
     * 将source对象中的属性扩展到target对象上
     * @name extend
     * @grammar UM.utils.extend(target,source)  => Object  //覆盖扩展
     * @grammar UM.utils.extend(target,source,true)  ==> Object  //保留扩展
     */
    extend:function (t, s, b) {
        if (s) {
            for (var k in s) {
                if (!b || !t.hasOwnProperty(k)) {
                    t[k] = s[k];
                }
            }
        }
        return t;
    },
    extend2:function (t) {
        var a = arguments;
        for (var i = 1; i < a.length; i++) {
            var x = a[i];
            for (var k in x) {
                if (!t.hasOwnProperty(k)) {
                    t[k] = x[k];
                }
            }
        }
        return t;
    },
    /**
     * 模拟继承机制，subClass继承superClass
     * @name inherits
     * @grammar UM.utils.inherits(subClass,superClass) => subClass
     * @example
     * function SuperClass(){
     *     this.name = "小李";
     * }
     * SuperClass.prototype = {
     *     hello:function(str){
     *         console.log(this.name + str);
     *     }
     * }
     * function SubClass(){
     *     this.name = "小张";
     * }
     * UM.utils.inherits(SubClass,SuperClass);
     * var sub = new SubClass();
     * sub.hello("早上好!"); ==> "小张早上好！"
     */
    inherits:function (subClass, superClass) {
        var oldP = subClass.prototype,
            newP = utils.makeInstance(superClass.prototype);
        utils.extend(newP, oldP, true);
        subClass.prototype = newP;
        return (newP.constructor = subClass);
    },

    /**
     * 用指定的context作为fn上下文，也就是this
     * @name bind
     * @grammar UM.utils.bind(fn,context)  =>  fn
     */
    bind:function (fn, context) {
        return function () {
            return fn.apply(context, arguments);
        };
    },

    /**
     * 创建延迟delay执行的函数fn
     * @name defer
     * @grammar UM.utils.defer(fn,delay)  =>fn   //延迟delay毫秒执行fn，返回fn
     * @grammar UM.utils.defer(fn,delay,exclusion)  =>fn   //延迟delay毫秒执行fn，若exclusion为真，则互斥执行fn
     * @example
     * function test(){
     *     console.log("延迟输出！");
     * }
     * //非互斥延迟执行
     * var testDefer = UM.utils.defer(test,1000);
     * testDefer();   =>  "延迟输出！";
     * testDefer();   =>  "延迟输出！";
     * //互斥延迟执行
     * var testDefer1 = UM.utils.defer(test,1000,true);
     * testDefer1();   =>  //本次不执行
     * testDefer1();   =>  "延迟输出！";
     */
    defer:function (fn, delay, exclusion) {
        var timerID;
        return function () {
            if (exclusion) {
                clearTimeout(timerID);
            }
            timerID = setTimeout(fn, delay);
        };
    },

    /**
     * 查找元素item在数组array中的索引, 若找不到返回-1
     * @name indexOf
     * @grammar UM.utils.indexOf(array,item)  => index|-1  //默认从数组开头部开始搜索
     * @grammar UM.utils.indexOf(array,item,start)  => index|-1  //start指定开始查找的位置
     */
    indexOf:function (array, item, start) {
        var index = -1;
        start = this.isNumber(start) ? start : 0;
        this.each(array, function (v, i) {
            if (i >= start && v === item) {
                index = i;
                return false;
            }
        });
        return index;
    },

    /**
     * 移除数组array中的元素item
     * @name removeItem
     * @grammar UM.utils.removeItem(array,item)
     */
    removeItem:function (array, item) {
        for (var i = 0, l = array.length; i < l; i++) {
            if (array[i] === item) {
                array.splice(i, 1);
                i--;
            }
        }
    },

    /**
     * 删除字符串str的首尾空格
     * @name trim
     * @grammar UM.utils.trim(str) => String
     */
    trim:function (str) {
        return str.replace(/(^[ \t\n\r]+)|([ \t\n\r]+$)/g, '');
    },

    /**
     * 将字符串list(以','分隔)或者数组list转成哈希对象
     * @name listToMap
     * @grammar UM.utils.listToMap(list)  => Object  //Object形如{test:1,br:1,textarea:1}
     */
    listToMap:function (list) {
        if (!list)return {};
        list = utils.isArray(list) ? list : list.split(',');
        for (var i = 0, ci, obj = {}; ci = list[i++];) {
            obj[ci.toUpperCase()] = obj[ci] = 1;
        }
        return obj;
    },

    /**
     * 将str中的html符号转义,默认将转义''&<">''四个字符，可自定义reg来确定需要转义的字符
     * @name unhtml
     * @grammar UM.utils.unhtml(str);  => String
     * @grammar UM.utils.unhtml(str,reg)  => String
     * @example
     * var html = '<body>You say:"你好！Baidu & UEditor!"</body>';
     * UM.utils.unhtml(html);   ==>  &lt;body&gt;You say:&quot;你好！Baidu &amp; UEditor!&quot;&lt;/body&gt;
     * UM.utils.unhtml(html,/[<>]/g)  ==>  &lt;body&gt;You say:"你好！Baidu & UEditor!"&lt;/body&gt;
     */
    unhtml:function (str, reg) {
        return str ? str.replace(reg || /[&<">'](?:(amp|lt|quot|gt|#39|nbsp);)?/g, function (a, b) {
            if (b) {
                return a;
            } else {
                return {
                    '<':'&lt;',
                    '&':'&amp;',
                    '"':'&quot;',
                    '>':'&gt;',
                    "'":'&#39;'
                }[a]
            }

        }) : '';
    },
    /**
     * 将str中的转义字符还原成html字符
     * @name html
     * @grammar UM.utils.html(str)  => String   //详细参见<code><a href = '#unhtml'>unhtml</a></code>
     */
    html:function (str) {
        return str ? str.replace(/&((g|l|quo)t|amp|#39);/g, function (m) {
            return {
                '&lt;':'<',
                '&amp;':'&',
                '&quot;':'"',
                '&gt;':'>',
                '&#39;':"'"
            }[m]
        }) : '';
    },
    /**
     * 将css样式转换为驼峰的形式。如font-size => fontSize
     * @name cssStyleToDomStyle
     * @grammar UM.utils.cssStyleToDomStyle(cssName)  => String
     */
    cssStyleToDomStyle:function () {
        var test = document.createElement('div').style,
            cache = {
                'float':test.cssFloat != undefined ? 'cssFloat' : test.styleFloat != undefined ? 'styleFloat' : 'float'
            };

        return function (cssName) {
            return cache[cssName] || (cache[cssName] = cssName.toLowerCase().replace(/-./g, function (match) {
                return match.charAt(1).toUpperCase();
            }));
        };
    }(),
    /**
     * 动态加载文件到doc中，并依据obj来设置属性，加载成功后执行回调函数fn
     * @name loadFile
     * @grammar UM.utils.loadFile(doc,obj)
     * @grammar UM.utils.loadFile(doc,obj,fn)
     * @example
     * //指定加载到当前document中一个script文件，加载成功后执行function
     * utils.loadFile( document, {
     *     src:"test.js",
     *     tag:"script",
     *     type:"text/javascript",
     *     defer:"defer"
     * }, function () {
     *     console.log('加载成功！')
     * });
     */
    loadFile:function () {
        var tmpList = [];

        function getItem(doc, obj) {
            try {
                for (var i = 0, ci; ci = tmpList[i++];) {
                    if (ci.doc === doc && ci.url == (obj.src || obj.href)) {
                        return ci;
                    }
                }
            } catch (e) {
                return null;
            }

        }

        return function (doc, obj, fn) {
            var item = getItem(doc, obj);
            if (item) {
                if (item.ready) {
                    fn && fn();
                } else {
                    item.funs.push(fn)
                }
                return;
            }
            tmpList.push({
                doc:doc,
                url:obj.src || obj.href,
                funs:[fn]
            });
            if (!doc.body) {
                var html = [];
                for (var p in obj) {
                    if (p == 'tag')continue;
                    html.push(p + '="' + obj[p] + '"')
                }
                doc.write('<' + obj.tag + ' ' + html.join(' ') + ' ></' + obj.tag + '>');
                return;
            }
            if (obj.id && doc.getElementById(obj.id)) {
                return;
            }
            var element = doc.createElement(obj.tag);
            delete obj.tag;
            for (var p in obj) {
                element.setAttribute(p, obj[p]);
            }
            element.onload = element.onreadystatechange = function () {
                if (!this.readyState || /loaded|complete/.test(this.readyState)) {
                    item = getItem(doc, obj);
                    if (item.funs.length > 0) {
                        item.ready = 1;
                        for (var fi; fi = item.funs.pop();) {
                            fi();
                        }
                    }
                    element.onload = element.onreadystatechange = null;
                }
            };
            element.onerror = function () {
                throw Error('The load ' + (obj.href || obj.src) + ' fails,check the url settings of file umeditor.config.js ')
            };
            doc.getElementsByTagName("head")[0].appendChild(element);
        }
    }(),
    /**
     * 判断obj对象是否为空
     * @name isEmptyObject
     * @grammar UM.utils.isEmptyObject(obj)  => true|false
     * @example
     * UM.utils.isEmptyObject({}) ==>true
     * UM.utils.isEmptyObject([]) ==>true
     * UM.utils.isEmptyObject("") ==>true
     */
    isEmptyObject:function (obj) {
        if (obj == null) return true;
        if (this.isArray(obj) || this.isString(obj)) return obj.length === 0;
        for (var key in obj) if (obj.hasOwnProperty(key)) return false;
        return true;
    },

    /**
     * 统一将颜色值使用16进制形式表示
     * @name fixColor
     * @grammar UM.utils.fixColor(name,value) => value
     * @example
     * rgb(255,255,255)  => "#ffffff"
     */
    fixColor:function (name, value) {
        if (/color/i.test(name) && /rgba?/.test(value)) {
            var array = value.split(",");
            if (array.length > 3)
                return "";
            value = "#";
            for (var i = 0, color; color = array[i++];) {
                color = parseInt(color.replace(/[^\d]/gi, ''), 10).toString(16);
                value += color.length == 1 ? "0" + color : color;
            }
            value = value.toUpperCase();
        }
        return  value;
    },

    /**
     * 深度克隆对象，从source到target
     * @name clone
     * @grammar UM.utils.clone(source) => anthorObj 新的对象是完整的source的副本
     * @grammar UM.utils.clone(source,target) => target包含了source的所有内容，重名会覆盖
     */
    clone:function (source, target) {
        var tmp;
        target = target || {};
        for (var i in source) {
            if (source.hasOwnProperty(i)) {
                tmp = source[i];
                if (typeof tmp == 'object') {
                    target[i] = utils.isArray(tmp) ? [] : {};
                    utils.clone(source[i], target[i])
                } else {
                    target[i] = tmp;
                }
            }
        }
        return target;
    },
    /**
     * 转换cm/pt到px
     * @name transUnitToPx
     * @grammar UM.utils.transUnitToPx('20pt') => '27px'
     * @grammar UM.utils.transUnitToPx('0pt') => '0'
     */
    transUnitToPx:function (val) {
        if (!/(pt|cm)/.test(val)) {
            return val
        }
        var unit;
        val.replace(/([\d.]+)(\w+)/, function (str, v, u) {
            val = v;
            unit = u;
        });
        switch (unit) {
            case 'cm':
                val = parseFloat(val) * 25;
                break;
            case 'pt':
                val = Math.round(parseFloat(val) * 96 / 72);
        }
        return val + (val ? 'px' : '');
    },
    /**
     * DomReady方法，回调函数将在dom树ready完成后执行
     * @name domReady
     * @grammar UM.utils.domReady(fn)  => fn  //返回一个延迟执行的方法
     */
    domReady:function () {

        var fnArr = [];

        function doReady(doc) {
            //确保onready只执行一次
            doc.isReady = true;
            for (var ci; ci = fnArr.pop(); ci()) {
            }
        }

        return function (onready, win) {
            win = win || window;
            var doc = win.document;
            onready && fnArr.push(onready);
            if (doc.readyState === "complete") {
                doReady(doc);
            } else {
                doc.isReady && doReady(doc);
                if (browser.ie) {
                    (function () {
                        if (doc.isReady) return;
                        try {
                            doc.documentElement.doScroll("left");
                        } catch (error) {
                            setTimeout(arguments.callee, 0);
                            return;
                        }
                        doReady(doc);
                    })();
                    win.attachEvent('onload', function () {
                        doReady(doc)
                    });
                } else {
                    doc.addEventListener("DOMContentLoaded", function () {
                        doc.removeEventListener("DOMContentLoaded", arguments.callee, false);
                        doReady(doc);
                    }, false);
                    win.addEventListener('load', function () {
                        doReady(doc)
                    }, false);
                }
            }

        }
    }(),
    /**
     * 动态添加css样式
     * @name cssRule
     * @grammar UM.utils.cssRule('添加的样式的节点名称',['样式'，'放到哪个document上'])
     * @grammar UM.utils.cssRule('body','body{background:#ccc}') => null  //给body添加背景颜色
     * @grammar UM.utils.cssRule('body') =>样式的字符串  //取得key值为body的样式的内容,如果没有找到key值先关的样式将返回空，例如刚才那个背景颜色，将返回 body{background:#ccc}
     * @grammar UM.utils.cssRule('body','') =>null //清空给定的key值的背景颜色
     */
    cssRule:browser.ie ? function (key, style, doc) {
        var indexList, index;
        doc = doc || document;
        if (doc.indexList) {
            indexList = doc.indexList;
        } else {
            indexList = doc.indexList = {};
        }
        var sheetStyle;
        if (!indexList[key]) {
            if (style === undefined) {
                return ''
            }
            sheetStyle = doc.createStyleSheet('', index = doc.styleSheets.length);
            indexList[key] = index;
        } else {
            sheetStyle = doc.styleSheets[indexList[key]];
        }
        if (style === undefined) {
            return sheetStyle.cssText
        }
        sheetStyle.cssText = style || ''
    } : function (key, style, doc) {
        doc = doc || document;
        var head = doc.getElementsByTagName('head')[0], node;
        if (!(node = doc.getElementById(key))) {
            if (style === undefined) {
                return ''
            }
            node = doc.createElement('style');
            node.id = key;
            head.appendChild(node)
        }
        if (style === undefined) {
            return node.innerHTML
        }
        if (style !== '') {
            node.innerHTML = style;
        } else {
            head.removeChild(node)
        }
    }

};
/**
 * 判断str是否为字符串
 * @name isString
 * @grammar UM.utils.isString(str) => true|false
 */
/**
 * 判断array是否为数组
 * @name isArray
 * @grammar UM.utils.isArray(obj) => true|false
 */
/**
 * 判断obj对象是否为方法
 * @name isFunction
 * @grammar UM.utils.isFunction(obj)  => true|false
 */
/**
 * 判断obj对象是否为数字
 * @name isNumber
 * @grammar UM.utils.isNumber(obj)  => true|false
 */
utils.each(['String', 'Function', 'Array', 'Number', 'RegExp', 'Object'], function (v) {
    UM.utils['is' + v] = function (obj) {
        return Object.prototype.toString.apply(obj) == '[object ' + v + ']';
    }
});
/**
 * @file
 * @name UM.EventBase
 * @short EventBase
 * @import editor.js,core/utils.js
 * @desc UE采用的事件基类，继承此类的对应类将获取addListener,removeListener,fireEvent方法。
 * 在UE中，Editor以及所有ui实例都继承了该类，故可以在对应的ui对象以及editor对象上使用上述方法。
 */
var EventBase = UM.EventBase = function () {};

EventBase.prototype = {
    /**
     * 注册事件监听器
     * @name addListener
     * @grammar editor.addListener(types,fn)  //types为事件名称，多个可用空格分隔
     * @example
     * editor.addListener('selectionchange',function(){
     *      console.log("选区已经变化！");
     * })
     * editor.addListener('beforegetcontent aftergetcontent',function(type){
     *         if(type == 'beforegetcontent'){
     *             //do something
     *         }else{
     *             //do something
     *         }
     *         console.log(this.getContent) // this是注册的事件的编辑器实例
     * })
     */
    addListener:function (types, listener) {
        types = utils.trim(types).split(' ');
        for (var i = 0, ti; ti = types[i++];) {
            getListener(this, ti, true).push(listener);
        }
    },
    /**
     * 移除事件监听器
     * @name removeListener
     * @grammar editor.removeListener(types,fn)  //types为事件名称，多个可用空格分隔
     * @example
     * //changeCallback为方法体
     * editor.removeListener("selectionchange",changeCallback);
     */
    removeListener:function (types, listener) {
        types = utils.trim(types).split(' ');
        for (var i = 0, ti; ti = types[i++];) {
            utils.removeItem(getListener(this, ti) || [], listener);
        }
    },
    /**
     * 触发事件
     * @name fireEvent
     * @grammar editor.fireEvent(types)  //types为事件名称，多个可用空格分隔
     * @example
     * editor.fireEvent("selectionchange");
     */
    fireEvent:function () {
        var types = arguments[0];
        types = utils.trim(types).split(' ');
        for (var i = 0, ti; ti = types[i++];) {
            var listeners = getListener(this, ti),
                r, t, k;
            if (listeners) {
                k = listeners.length;
                while (k--) {
                    if(!listeners[k])continue;
                    t = listeners[k].apply(this, arguments);
                    if(t === true){
                        return t;
                    }
                    if (t !== undefined) {
                        r = t;
                    }
                }
            }
            if (t = this['on' + ti.toLowerCase()]) {
                r = t.apply(this, arguments);
            }
        }
        return r;
    }
};
/**
 * 获得对象所拥有监听类型的所有监听器
 * @public
 * @function
 * @param {Object} obj  查询监听器的对象
 * @param {String} type 事件类型
 * @param {Boolean} force  为true且当前所有type类型的侦听器不存在时，创建一个空监听器数组
 * @returns {Array} 监听器数组
 */
function getListener(obj, type, force) {
    var allListeners;
    type = type.toLowerCase();
    return ( ( allListeners = ( obj.__allListeners || force && ( obj.__allListeners = {} ) ) )
        && ( allListeners[type] || force && ( allListeners[type] = [] ) ) );
}


///import editor.js
///import core/dom/dom.js
///import core/utils.js
/**
 * dtd html语义化的体现类
 * @constructor
 * @namespace dtd
 */
var dtd = dom.dtd = (function() {
    function _( s ) {
        for (var k in s) {
            s[k.toUpperCase()] = s[k];
        }
        return s;
    }
    var X = utils.extend2;
    var A = _({isindex:1,fieldset:1}),
        B = _({input:1,button:1,select:1,textarea:1,label:1}),
        C = X( _({a:1}), B ),
        D = X( {iframe:1}, C ),
        E = _({hr:1,ul:1,menu:1,div:1,blockquote:1,noscript:1,table:1,center:1,address:1,dir:1,pre:1,h5:1,dl:1,h4:1,noframes:1,h6:1,ol:1,h1:1,h3:1,h2:1}),
        F = _({ins:1,del:1,script:1,style:1}),
        G = X( _({b:1,acronym:1,bdo:1,'var':1,'#':1,abbr:1,code:1,br:1,i:1,cite:1,kbd:1,u:1,strike:1,s:1,tt:1,strong:1,q:1,samp:1,em:1,dfn:1,span:1}), F ),
        H = X( _({sub:1,img:1,embed:1,object:1,sup:1,basefont:1,map:1,applet:1,font:1,big:1,small:1}), G ),
        I = X( _({p:1}), H ),
        J = X( _({iframe:1}), H, B ),
        K = _({img:1,embed:1,noscript:1,br:1,kbd:1,center:1,button:1,basefont:1,h5:1,h4:1,samp:1,h6:1,ol:1,h1:1,h3:1,h2:1,form:1,font:1,'#':1,select:1,menu:1,ins:1,abbr:1,label:1,code:1,table:1,script:1,cite:1,input:1,iframe:1,strong:1,textarea:1,noframes:1,big:1,small:1,span:1,hr:1,sub:1,bdo:1,'var':1,div:1,object:1,sup:1,strike:1,dir:1,map:1,dl:1,applet:1,del:1,isindex:1,fieldset:1,ul:1,b:1,acronym:1,a:1,blockquote:1,i:1,u:1,s:1,tt:1,address:1,q:1,pre:1,p:1,em:1,dfn:1}),

        L = X( _({a:0}), J ),//a不能被切开，所以把他
        M = _({tr:1}),
        N = _({'#':1}),
        O = X( _({param:1}), K ),
        P = X( _({form:1}), A, D, E, I ),
        Q = _({li:1,ol:1,ul:1}),
        R = _({style:1,script:1}),
        S = _({base:1,link:1,meta:1,title:1}),
        T = X( S, R ),
        U = _({head:1,body:1}),
        V = _({html:1});

    var block = _({address:1,blockquote:1,center:1,dir:1,div:1,dl:1,fieldset:1,form:1,h1:1,h2:1,h3:1,h4:1,h5:1,h6:1,hr:1,isindex:1,menu:1,noframes:1,ol:1,p:1,pre:1,table:1,ul:1}),

        empty =  _({area:1,base:1,basefont:1,br:1,col:1,command:1,dialog:1,embed:1,hr:1,img:1,input:1,isindex:1,keygen:1,link:1,meta:1,param:1,source:1,track:1,wbr:1});

    return  _({

        // $ 表示自定的属性

        // body外的元素列表.
        $nonBodyContent: X( V, U, S ),

        //块结构元素列表
        $block : block,

        //内联元素列表
        $inline : L,

        $inlineWithA : X(_({a:1}),L),

        $body : X( _({script:1,style:1}), block ),

        $cdata : _({script:1,style:1}),

        //自闭和元素
        $empty : empty,

        //不是自闭合，但不能让range选中里边
        $nonChild : _({iframe:1,textarea:1}),
        //列表元素列表
        $listItem : _({dd:1,dt:1,li:1}),

        //列表根元素列表
        $list: _({ul:1,ol:1,dl:1}),

        //不能认为是空的元素
        $isNotEmpty : _({table:1,ul:1,ol:1,dl:1,iframe:1,area:1,base:1,col:1,hr:1,img:1,embed:1,input:1,link:1,meta:1,param:1,h1:1,h2:1,h3:1,h4:1,h5:1,h6:1}),

        //如果没有子节点就可以删除的元素列表，像span,a
        $removeEmpty : _({a:1,abbr:1,acronym:1,address:1,b:1,bdo:1,big:1,cite:1,code:1,del:1,dfn:1,em:1,font:1,i:1,ins:1,label:1,kbd:1,q:1,s:1,samp:1,small:1,span:1,strike:1,strong:1,sub:1,sup:1,tt:1,u:1,'var':1}),

        $removeEmptyBlock : _({'p':1,'div':1}),

        //在table元素里的元素列表
        $tableContent : _({caption:1,col:1,colgroup:1,tbody:1,td:1,tfoot:1,th:1,thead:1,tr:1,table:1}),
        //不转换的标签
        $notTransContent : _({pre:1,script:1,style:1,textarea:1}),
        html: U,
        head: T,
        style: N,
        script: N,
        body: P,
        base: {},
        link: {},
        meta: {},
        title: N,
        col : {},
        tr : _({td:1,th:1}),
        img : {},
        embed: {},
        colgroup : _({thead:1,col:1,tbody:1,tr:1,tfoot:1}),
        noscript : P,
        td : P,
        br : {},
        th : P,
        center : P,
        kbd : L,
        button : X( I, E ),
        basefont : {},
        h5 : L,
        h4 : L,
        samp : L,
        h6 : L,
        ol : Q,
        h1 : L,
        h3 : L,
        option : N,
        h2 : L,
        form : X( A, D, E, I ),
        select : _({optgroup:1,option:1}),
        font : L,
        ins : L,
        menu : Q,
        abbr : L,
        label : L,
        table : _({thead:1,col:1,tbody:1,tr:1,colgroup:1,caption:1,tfoot:1}),
        code : L,
        tfoot : M,
        cite : L,
        li : P,
        input : {},
        iframe : P,
        strong : L,
        textarea : N,
        noframes : P,
        big : L,
        small : L,
        //trace:
        span :_({'#':1,br:1,b:1,strong:1,u:1,i:1,em:1,sub:1,sup:1,strike:1,span:1}),
        hr : L,
        dt : L,
        sub : L,
        optgroup : _({option:1}),
        param : {},
        bdo : L,
        'var' : L,
        div : P,
        object : O,
        sup : L,
        dd : P,
        strike : L,
        area : {},
        dir : Q,
        map : X( _({area:1,form:1,p:1}), A, F, E ),
        applet : O,
        dl : _({dt:1,dd:1}),
        del : L,
        isindex : {},
        fieldset : X( _({legend:1}), K ),
        thead : M,
        ul : Q,
        acronym : L,
        b : L,
        a : X( _({a:1}), J ),
        blockquote :X(_({td:1,tr:1,tbody:1,li:1}),P),
        caption : L,
        i : L,
        u : L,
        tbody : M,
        s : L,
        address : X( D, I ),
        tt : L,
        legend : L,
        q : L,
        pre : X( G, C ),
        p : X(_({'a':1}),L),
        em :L,
        dfn : L
    });
})();

/**
 * @file
 * @name UM.dom.domUtils
 * @short DomUtils
 * @import editor.js, core/utils.js,core/browser.js,core/dom/dtd.js
 * @desc UEditor封装的底层dom操作库
 */

var attrFix = ie && browser.version < 9 ? {
        tabindex: "tabIndex",
        readonly: "readOnly",
        "for": "htmlFor",
        "class": "className",
        maxlength: "maxLength",
        cellspacing: "cellSpacing",
        cellpadding: "cellPadding",
        rowspan: "rowSpan",
        colspan: "colSpan",
        usemap: "useMap",
        frameborder: "frameBorder"
    } : {
        tabindex: "tabIndex",
        readonly: "readOnly"
    },
    styleBlock = utils.listToMap([
        '-webkit-box', '-moz-box', 'block' ,
        'list-item' , 'table' , 'table-row-group' ,
        'table-header-group', 'table-footer-group' ,
        'table-row' , 'table-column-group' , 'table-column' ,
        'table-cell' , 'table-caption'
    ]);
var domUtils = dom.domUtils = {
    //节点常量
    NODE_ELEMENT: 1,
    NODE_DOCUMENT: 9,
    NODE_TEXT: 3,
    NODE_COMMENT: 8,
    NODE_DOCUMENT_FRAGMENT: 11,

    //位置关系
    POSITION_IDENTICAL: 0,
    POSITION_DISCONNECTED: 1,
    POSITION_FOLLOWING: 2,
    POSITION_PRECEDING: 4,
    POSITION_IS_CONTAINED: 8,
    POSITION_CONTAINS: 16,
    //ie6使用其他的会有一段空白出现
    fillChar: ie && browser.version == '6' ? '\ufeff' : '\u200B',
    //-------------------------Node部分--------------------------------
    keys: {
        /*Backspace*/ 8: 1, /*Delete*/ 46: 1,
        /*Shift*/ 16: 1, /*Ctrl*/ 17: 1, /*Alt*/ 18: 1,
        37: 1, 38: 1, 39: 1, 40: 1,
        13: 1 /*enter*/
    },
    breakParent:function (node, parent) {
        var tmpNode,
            parentClone = node,
            clone = node,
            leftNodes,
            rightNodes;
        do {
            parentClone = parentClone.parentNode;
            if (leftNodes) {
                tmpNode = parentClone.cloneNode(false);
                tmpNode.appendChild(leftNodes);
                leftNodes = tmpNode;
                tmpNode = parentClone.cloneNode(false);
                tmpNode.appendChild(rightNodes);
                rightNodes = tmpNode;
            } else {
                leftNodes = parentClone.cloneNode(false);
                rightNodes = leftNodes.cloneNode(false);
            }
            while (tmpNode = clone.previousSibling) {
                leftNodes.insertBefore(tmpNode, leftNodes.firstChild);
            }
            while (tmpNode = clone.nextSibling) {
                rightNodes.appendChild(tmpNode);
            }
            clone = parentClone;
        } while (parent !== parentClone);
        tmpNode = parent.parentNode;
        tmpNode.insertBefore(leftNodes, parent);
        tmpNode.insertBefore(rightNodes, parent);
        tmpNode.insertBefore(node, rightNodes);
        domUtils.remove(parent);
        return node;
    },
    trimWhiteTextNode:function (node) {
        function remove(dir) {
            var child;
            while ((child = node[dir]) && child.nodeType == 3 && domUtils.isWhitespace(child)) {
                node.removeChild(child);
            }
        }
        remove('firstChild');
        remove('lastChild');
    },
    /**
     * 获取节点A相对于节点B的位置关系
     * @name getPosition
     * @grammar UM.dom.domUtils.getPosition(nodeA,nodeB)  =>  Number
     * @example
     *  switch (returnValue) {
     *      case 0: //相等，同一节点
     *      case 1: //无关，节点不相连
     *      case 2: //跟随，即节点A头部位于节点B头部的后面
     *      case 4: //前置，即节点A头部位于节点B头部的前面
     *      case 8: //被包含，即节点A被节点B包含
     *      case 10://组合类型，即节点A满足跟随节点B且被节点B包含。实际上，如果被包含，必定跟随，所以returnValue事实上不会存在8的情况。
     *      case 16://包含，即节点A包含节点B
     *      case 20://组合类型，即节点A满足前置节点A且包含节点B。同样，如果包含，必定前置，所以returnValue事实上也不会存在16的情况
     *  }
     */
    getPosition: function (nodeA, nodeB) {
        // 如果两个节点是同一个节点
        if (nodeA === nodeB) {
            // domUtils.POSITION_IDENTICAL
            return 0;
        }
        var node,
            parentsA = [nodeA],
            parentsB = [nodeB];
        node = nodeA;
        while (node = node.parentNode) {
            // 如果nodeB是nodeA的祖先节点
            if (node === nodeB) {
                // domUtils.POSITION_IS_CONTAINED + domUtils.POSITION_FOLLOWING
                return 10;
            }
            parentsA.push(node);
        }
        node = nodeB;
        while (node = node.parentNode) {
            // 如果nodeA是nodeB的祖先节点
            if (node === nodeA) {
                // domUtils.POSITION_CONTAINS + domUtils.POSITION_PRECEDING
                return 20;
            }
            parentsB.push(node);
        }
        parentsA.reverse();
        parentsB.reverse();
        if (parentsA[0] !== parentsB[0]) {
            // domUtils.POSITION_DISCONNECTED
            return 1;
        }
        var i = -1;
        while (i++, parentsA[i] === parentsB[i]) {
        }
        nodeA = parentsA[i];
        nodeB = parentsB[i];
        while (nodeA = nodeA.nextSibling) {
            if (nodeA === nodeB) {
                // domUtils.POSITION_PRECEDING
                return 4
            }
        }
        // domUtils.POSITION_FOLLOWING
        return  2;
    },

    /**
     * 返回节点node在父节点中的索引位置
     * @name getNodeIndex
     * @grammar UM.dom.domUtils.getNodeIndex(node)  => Number  //索引值从0开始
     */
    getNodeIndex: function (node, ignoreTextNode) {
        var preNode = node,
            i = 0;
        while (preNode = preNode.previousSibling) {
            if (ignoreTextNode && preNode.nodeType == 3) {
                if (preNode.nodeType != preNode.nextSibling.nodeType) {
                    i++;
                }
                continue;
            }
            i++;
        }
        return i;
    },

    /**
     * 检测节点node是否在节点doc的树上，实质上是检测是否被doc包含
     * @name inDoc
     * @grammar UM.dom.domUtils.inDoc(node,doc)   =>  true|false
     */
    inDoc: function (node, doc) {
        return domUtils.getPosition(node, doc) == 10;
    },
    /**
     * 查找node节点的祖先节点
     * @name findParent
     * @grammar UM.dom.domUtils.findParent(node)  => Element  // 直接返回node节点的父节点
     * @grammar UM.dom.domUtils.findParent(node,filterFn)  => Element  //filterFn为过滤函数，node作为参数，返回true时才会将node作为符合要求的节点返回
     * @grammar UM.dom.domUtils.findParent(node,filterFn,includeSelf)  => Element  //includeSelf指定是否包含自身
     */
    findParent: function (node, filterFn, includeSelf) {
        if (node && !domUtils.isBody(node)) {
            node = includeSelf ? node : node.parentNode;
            while (node) {
                if (!filterFn || filterFn(node) || domUtils.isBody(node)) {
                    return filterFn && !filterFn(node) && domUtils.isBody(node) ? null : node;
                }
                node = node.parentNode;
            }
        }
        return null;
    },
    /**
     * 通过tagName查找node节点的祖先节点
     * @name findParentByTagName
     * @grammar UM.dom.domUtils.findParentByTagName(node,tagNames)   =>  Element  //tagNames支持数组，区分大小写
     * @grammar UM.dom.domUtils.findParentByTagName(node,tagNames,includeSelf)   =>  Element  //includeSelf指定是否包含自身
     * @grammar UM.dom.domUtils.findParentByTagName(node,tagNames,includeSelf,excludeFn)   =>  Element  //excludeFn指定例外过滤条件，返回true时忽略该节点
     */
    findParentByTagName: function (node, tagNames, includeSelf, excludeFn) {
        tagNames = utils.listToMap(utils.isArray(tagNames) ? tagNames : [tagNames]);
        return domUtils.findParent(node, function (node) {
            return tagNames[node.tagName] && !(excludeFn && excludeFn(node));
        }, includeSelf);
    },
    /**
     * 查找节点node的祖先节点集合
     * @name findParents
     * @grammar UM.dom.domUtils.findParents(node)  => Array  //返回一个祖先节点数组集合，不包含自身
     * @grammar UM.dom.domUtils.findParents(node,includeSelf)  => Array  //返回一个祖先节点数组集合，includeSelf指定是否包含自身
     * @grammar UM.dom.domUtils.findParents(node,includeSelf,filterFn)  => Array  //返回一个祖先节点数组集合，filterFn指定过滤条件，返回true的node将被选取
     * @grammar UM.dom.domUtils.findParents(node,includeSelf,filterFn,closerFirst)  => Array  //返回一个祖先节点数组集合，closerFirst为true的话，node的直接父亲节点是数组的第0个
     */
    findParents: function (node, includeSelf, filterFn, closerFirst) {
        var parents = includeSelf && ( filterFn && filterFn(node) || !filterFn ) ? [node] : [];
        while (node = domUtils.findParent(node, filterFn)) {
            parents.push(node);
        }
        return closerFirst ? parents : parents.reverse();
    },

    /**
     * 在节点node后面插入新节点newNode
     * @name insertAfter
     * @grammar UM.dom.domUtils.insertAfter(node,newNode)  => newNode
     */
    insertAfter: function (node, newNode) {
        return node.parentNode.insertBefore(newNode, node.nextSibling);
    },

    /**
     * 删除节点node，并根据keepChildren指定是否保留子节点
     * @name remove
     * @grammar UM.dom.domUtils.remove(node)  =>  node
     * @grammar UM.dom.domUtils.remove(node,keepChildren)  =>  node
     */
    remove: function (node, keepChildren) {

        var parent = node.parentNode,
            child;
        if (parent) {
            if (keepChildren && node.hasChildNodes()) {
                while (child = node.firstChild) {
                    parent.insertBefore(child, node);
                }
            }
            parent.removeChild(node);
        }
        return node;
    },


    /**
     * 检测节点node是否属于bookmark节点
     * @name isBookmarkNode
     * @grammar UM.dom.domUtils.isBookmarkNode(node)  => true|false
     */
    isBookmarkNode: function (node) {
        return node.nodeType == 1 && node.id && /^_baidu_bookmark_/i.test(node.id);
    },
    /**
     * 获取节点node所在的window对象
     * @name  getWindow
     * @grammar UM.dom.domUtils.getWindow(node)  => window对象
     */
    getWindow: function (node) {
        var doc = node.ownerDocument || node;
        return doc.defaultView || doc.parentWindow;
    },


    /**
     * 将一个文本节点node拆分成两个文本节点，offset指定拆分位置
     * @name split
     * @grammar UM.dom.domUtils.split(node,offset)  =>  TextNode  //返回从切分位置开始的后一个文本节点
     */
    split: function (node, offset) {
        var doc = node.ownerDocument;
        if (browser.ie && offset == node.nodeValue.length) {
            var next = doc.createTextNode('');
            return domUtils.insertAfter(node, next);
        }
        var retval = node.splitText(offset);
        //ie8下splitText不会跟新childNodes,我们手动触发他的更新
        if (browser.ie8) {
            var tmpNode = doc.createTextNode('');
            domUtils.insertAfter(retval, tmpNode);
            domUtils.remove(tmpNode);
        }
        return retval;
    },

    /**
     * 检测节点node是否为空节点（包括空格、换行、占位符等字符）
     * @name  isWhitespace
     * @grammar  UM.dom.domUtils.isWhitespace(node)  => true|false
     */
    isWhitespace: function (node) {
        return !new RegExp('[^ \t\n\r' + domUtils.fillChar + ']').test(node.nodeValue);
    },
    /**
     * 获取元素element相对于viewport的位置坐标
     * @name getXY
     * @grammar UM.dom.domUtils.getXY(element)  => Object //返回坐标对象{x:left,y:top}
     */
    getXY: function (element) {
        var x = 0, y = 0;
        while (element.offsetParent) {
            y += element.offsetTop;
            x += element.offsetLeft;
            element = element.offsetParent;
        }
        return { 'x': x, 'y': y};
    },
    /**
     * 为元素element绑定原生DOM事件，type为事件类型，handler为处理函数
     * @name on
     * @grammar UM.dom.domUtils.on(element,type,handler)   //type支持数组传入
     * @example
     * UM.dom.domUtils.on(document.body,"click",function(e){
     *     //e为事件对象，this为被点击元素对戏那个
     * })
     * @example
     * UM.dom.domUtils.on(document.body,["click","mousedown"],function(evt){
     *     //evt为事件对象，this为被点击元素对象
     * })
     */
    on: function (element, type, handler) {
        var types = utils.isArray(type) ? type : [type],
            k = types.length;
        if (k) while (k--) {
            type = types[k];
            if (element.addEventListener) {
                element.addEventListener(type, handler, false);
            } else {
                if (!handler._d) {
                    handler._d = {
                        els: []
                    };
                }
                var key = type + handler.toString(), index = utils.indexOf(handler._d.els, element);
                if (!handler._d[key] || index == -1) {
                    if (index == -1) {
                        handler._d.els.push(element);
                    }
                    if (!handler._d[key]) {
                        handler._d[key] = function (evt) {
                            return handler.call(evt.srcElement, evt || window.event);
                        };
                    }


                    element.attachEvent('on' + type, handler._d[key]);
                }
            }
        }
        element = null;
    },
    /**
     * 解除原生DOM事件绑定
     * @name un
     * @grammar  UM.dom.donUtils.un(element,type,handler)  //参见<code><a href="#on">on</a></code>
     */
    un: function (element, type, handler) {
        var types = utils.isArray(type) ? type : [type],
            k = types.length;
        if (k) while (k--) {
            type = types[k];
            if (element.removeEventListener) {
                element.removeEventListener(type, handler, false);
            } else {
                var key = type + handler.toString();
                try {
                    element.detachEvent('on' + type, handler._d ? handler._d[key] : handler);
                } catch (e) {
                }
                if (handler._d && handler._d[key]) {
                    var index = utils.indexOf(handler._d.els, element);
                    if (index != -1) {
                        handler._d.els.splice(index, 1);
                    }
                    handler._d.els.length == 0 && delete handler._d[key];
                }
            }
        }
    },
    /**
     * 检查节点node是否是空inline节点
     * @name  isEmptyInlineElement
     * @grammar   UM.dom.domUtils.isEmptyInlineElement(node)  => 1|0
     * @example
     * <b><i></i></b> => 1
     * <b><i></i><u></u></b> => 1
     * <b></b> => 1
     * <b>xx<i></i></b> => 0
     */
    isEmptyInlineElement: function (node) {
        if (node.nodeType != 1 || !dtd.$removeEmpty[ node.tagName ]) {
            return 0;
        }
        node = node.firstChild;
        while (node) {
            //如果是创建的bookmark就跳过
            if (domUtils.isBookmarkNode(node)) {
                return 0;
            }
            if (node.nodeType == 1 && !domUtils.isEmptyInlineElement(node) ||
                node.nodeType == 3 && !domUtils.isWhitespace(node)
                ) {
                return 0;
            }
            node = node.nextSibling;
        }
        return 1;

    },


    /**
     * 检查节点node是否为块元素
     * @name isBlockElm
     * @grammar UM.dom.domUtils.isBlockElm(node)  => true|false
     */
    isBlockElm: function (node) {
        return node.nodeType == 1 && (dtd.$block[node.tagName] || styleBlock[domUtils.getComputedStyle(node, 'display')]) && !dtd.$nonChild[node.tagName];
    },


    /**
     * 原生方法getElementsByTagName的封装
     * @name getElementsByTagName
     * @grammar UM.dom.domUtils.getElementsByTagName(node,tagName)  => Array  //节点集合数组
     */
    getElementsByTagName: function (node, name, filter) {
        if (filter && utils.isString(filter)) {
            var className = filter;
            filter = function (node) {
                var result = false;
                $.each(utils.trim(className).replace(/[ ]{2,}/g, ' ').split(' '), function (i, v) {
                    if ($(node).hasClass(v)) {
                        result = true;
                        return false;
                    }
                })
                return result;
            }
        }
        name = utils.trim(name).replace(/[ ]{2,}/g, ' ').split(' ');
        var arr = [];
        for (var n = 0, ni; ni = name[n++];) {
            var list = node.getElementsByTagName(ni);
            for (var i = 0, ci; ci = list[i++];) {
                if (!filter || filter(ci))
                    arr.push(ci);
            }
        }
        return arr;
    },


    /**
     * 设置节点node及其子�…