Ext原码学习之Ext-more.js

// JavaScript Document
Ext.apply(Ext,{
    userAgent:navigator.userAgent.toLowerCase(),
    cache:{},
    isSeed:1000,

    windowId:'ext-window',
    documentId:'ext-document',

    isReady:false,

    enableGarbageCollector:true,

    enableListenerCollection:true,

    rootHierarchyState:{},

    addCacheEntry:function(id,el,dom)
    {
        dom = dom || el.dom;

        if(!dom)
        {
            Ext.Error.raise('Cannot add an entry to element cache without the dom node');
        }

        var cache = Ext.cache,
        key = id ||(el && el.id) ||dom.id,
        entry = cache[key]||(cache[key] = {
            data:{},
            event:{},
            dom:dom,
            skipGarbageCollection:!!(document.getElementById||dom.navigator)

        });

        if(el)
        {
            el.$cache = entry;
            entry.el = el;
        }

        return entry;
    },
    //update cache entry
    updateCacheEntry:function(cacheItem,dom)
    {
        cacheItem.dom = dom;
        if(cacheItem.el)
        {
            cacheItem.el.dom = dom;
        }

        return cacheItem;
    },
    //generates unique ids
    id:function(el,prefix)
    {
        var me = this,sandboxPrefix = '';

        el = Ext.getDom(el,true) || {};
        if(el === document)
        {
            el.id = me.documentId;
        }
        else if(el === window)
        {
            el.id = me.windowId;
        }

        if(!el.id)
        {
            if(me.isSandboxed)
            {
                sandboxPrefix = Ext.sandboxName.toLowerCase()+'-';
            }
            el.id = sandboxPrefix +(prefix||'ext-gen')+(Ext.isSeed);
        }
        return el.id;
    },
    escapeId:(function(){
        var validIdRe = /^[a-zA-Z_][a-zA-Z0-9_\-]*$/i,
            escapeRx =/([\W]{1})/g,
            leadingNumRx = /^(\d)/g,
            escapeFn = function(match,capture)
            {
                return "\\" +capture;
            },
            numEscapeFn=function(match,capture)
            {
                return "\\00"+capture.charCodeAt(0).toString(16)+' ';
            };

            return function(id){
                return validIdRe.test(id) ? id :id.replace(escapeRx,escapeFn).replace(leadingNumRx,numEscapeFn);
            }
    }()),
    // return current document body
    getBody:(function(){
        var body ;
        return function(){
            return body || (body = Ext.get(document.body));
        }
    }()),
    // return current document head
    getHead:(function(){
        //load once
        var head;
        return function(){
            return head ||(head = Ext.get(document.getElementByTagName('head')[0]));
        }
    }()),
    // return current document as an Ext.Element
    getDoc:(function(){
        var doc;
        return function(){
            return doc ||(doc = Ext.get(document));
        }
    }()),
    // return the current orientation of the mobile device
    getOrientation:function(){
        return window.innerHeight > window.innerWidth ? 'portrait':'landscape';
    },
    // destory any objects passed to is by removeing all event listeners
    destory:function(){
        var ln = arguments.length,i,arg;
        for(i = 0;i<ln ;i++)
        {
            arg = arguments[i];
            if(arg)
            {
                if(Ext.isArray(arg))
                {
                    this.destory.apply(this,arg);
                }
                else if(arg.isStore)
                {
                    arg.destoryStore();
                }
                else if(Ext.isFunction(arg.destory))
                {
                    arg.destory();
                }else
                {
                    arg.remove();
                }
            }

        }
    },
    callback:function(callback,scope,args,delay)
    {
        var fn ,ret;
        if(Ext.isFunction(callback))
        {
            fn = callback;
        }
        else
        {
            fn = scope[callback];
            if(!fn)
            {
                Ext.Error.raise('No method named ' + callback );
            }
        }

        if(fn)
        {
            args  = args || {};
            scope = scope || window;
            if(delay)
            {
                Ext.defer(fn,delay,scope,args);
            }
            else
            {
                ret = fn.apply(scope,args);
            }
        }

        return ret;

    },
    //private method
    resolveMethod:function(fn,scope)
    {
        if(Ext.isFunction(fn))
        {
            return fn;
        }

        if(!Ext.isObject(scope) || !Ext.isFunction(scope[fn]))
        {
            Ext.Error.raise('No method named' + fn);
        }

        return scope[fn];
    },

    htmlEncode:function(value)
    {
        return Ext.String.htmlEncode(value);
    },
    htmlDecode:function(value)
    {
        return Ext.String.htmlDecode(value);
    },
    urlAppend:function(url,s)
    {
        return Ext.String.urlAppend(url,s);
    }
});

Ext.ns = Ext.namespace;

window.undefined = window.undefined;

//check browser type
(function(){
    var check = function(regex){
        return regex.test(Ext.userAgent);
    }

    isStrict = document.compatMode == 'CSS1Compat',
    version = function(is,regex)
    {
        var m ;
        return (is && ( m = regex.test(Ext.userAgent))) ? parseFloat(m[1]):0;
    },
    docMode = document.documentMode,
    isOpera = check(/opera/),
    isOpera10_5 = isOpera && check(/version\/10\.5/),
    isChrome = check(/\bchrome\b/),
    isWebKit = check(/webkit/),
    isSafari = !isChrome && check(/safari/),
    isSafari2 = isSafari && check(/applewebkit\/4/),
    isSafari3 = isSafari && check(/version\/3/),
    isSafari4 = isSafari && check(/version\/4/),
    isSafari5_0 = isSafari && check(/version\/5.0/),
    isSafari5 = isSafari && check(/version\/5/),
    isIE = !isOpera && check(/msie/),
    isIE7 = isIE && ((check(/msie 7/) && docMode !=8 && docMode !=9 && docMode !=10 ) || docMode ==7),
    isIE8 = isIE && ((check(/msie 8/) && docMode !=7 && docMode !=9 && docMode !=10 ) || docMode ==8),
    isIE9 = isIE && ((check(/msie 9/) && docMode !=8 && docMode !=7 && docMode !=10 ) || docMode ==9),
    isIE10 = isIE && ((check(/msie 9/) && docMode !=8 && docMode !=7 && docMode !=9 ) || docMode ==10),
    isIE6 = isIE && ( check(/msie 6/)  ),
    isGecko = !isWebKit && check(/gecko/),
    isGecko3 = isGecko && check(/rv:1\.9/),
    isGecko4 = isGecko && check(/rv:2\.0/),
    isGecko5 = isGecko && check(/rv:5\./),
    isGecko10 = isGecko && check(/rv:10\./),
    isFF3_0 = isGecko3 && check(/rv:1\.9\.0/),
    isFF3_5 = isGecko3 && check(/rv:1\.9\.1/),
    isFF3_6 = isGecko3 && check(/rv:1\.9\.2/),
    isWindows = check(/window|win32/),
    isMac = check(/macintosh|mac os x/),
    isLinux = check(/linux/),
    scrollbarSize = null,
    chromeVersion = version(true,/\bchrome\/(\d+\.\d+)/),
    firefoxVersion = version(true,/\bfirefox\/(\d+\.\d+)/),
    ieVersion = version(isIE,/msie (\d+\.\d+)/),
    operaVersion = version(isOpera, /version\/(\d+\.\d+)/),
    safariVersion = version(isSafari, /version\/(\d+\.\d+)/),
    webKitVersion = version(isWebKit, /webkit\/(\d+\.\d+)/),
    isSecure = /^https/i.test(window.location.protocal),
    nullLog=null;

    try{
        document.execCommand('BackgroundImageCache',false,true);
    }catch(e){}

    var primitiveRe = /string|number|boolean/;

    function dumpObject(object)
    {
        var member,type,value,name,numbers=[];

        for(name in object)
        {
            if(object.hasOwnProperty(name))
            {
                value = object[name];

                type = typeof value;

                if(type=='function')
                {
                    continue;
                }
                if(type=='undefined')
                {
                    member = type;
                }
                else if(value===null || primitiveRe.test(type) || Ext.isDate(value))
                {
                    member = Ext.decode(value);
                }
                else if(Ext.isArray(value))
                {
                    member = '[ ]';
                }else if(Ext.isObject(value))
                {
                    member = '{ }';
                }
                else
                {
                    member = type;
                }

                members.push(Ext.encode(name) + ": " + member);

            }

        }
        if(members.length)
        {
            return '\n Data:{\n '+members.join(',\n   ') + '\n}';
        }
    }
    //console.log(dumpObject({a:2,b:4,d:5,f:new Date()}));

    function log(message)
    {
        var options,dump,con=Ext.global.console,
            level = 'log',
            indent = log.indent || 0,statck,out,max;

            log.indent = indent;

            if(Ext.type(message) !='string')
            {
                options = message;
                message = options.msg || '';
                level = options.level || level;
                dump = options.dump;
                stack = options.stack;

                if(options.indent)
                {
                    ++ log.indent;
                }
                else if(options.outdent)
                {
                    log.indent = indent = Math.max(indent - 1,0);
                }

                if(dump && (con && con .dir))
                {
                    message += dumpObject(dump);
                    dump = null;
                }

                if(arguments.length >1)
                {
                    message += Array.prototype.slice.call(arguments,1).join('');
                }

                message = indent ? Ext.String.repeat(' ', log.indextSize * indent)+message : message;

                if(level !='log')
                {
                    message = '[' + level.charAt(0).toUpperCase() + ']' + message;
                }

                if(con)
                {
                    if(con[level])
                    {
                        con[level](message);
                    }
                    else
                    {
                        con.log(message);
                    }

                    if(dump)
                    {
                        con.dir(dump);
                    }

                    if(stack && con.trace)
                    {
                        if(!con.firebug || level !='error')
                        {
                            con.trace();
                        }
                    }
                }else
                {
                    if(Ext.isOpera)
                    {
                        opera.postError(message);
                    }
                    else
                    {
                        out = log.out;
                        max = log.max;

                        if(out.length >= max)
                        {
                            Ext.Array.erase(out,0,out.length -3 & Math.floor(max/4));
                        }
                        out.push(message);
                    }
                }
            }
            ++log.count;
            ++log.counters[level];
    }

    function logx(level,args)
    {
        if(typeof args[0] == 'string')
        {
            args.unshift({});
        }

        args[0].level = level;
        log.apply(this,args);
    }

    log.error = function()
    {
        logx('error',Array.prototype.slice.call(arguments));
    }

    log.info = function()
    {
        logx('info',Array.prototype.slice.call(arguments));
    }

    log.warn = function()
    {
        logx('warn',Array.prototype.slice.call(arguments));
    }

    log.count = 0;

    log.counters = {error :0,warn:0,info:0,log:0};

    log.identSize = 2;

    log.out = [];

    log.max = 750;

        log.show = function () {
        window.open('','extlog').document.write([
            '<html><head><script type="text/javascript">',
                'var lastCount = 0;',
                'function update () {',
                    'var ext = window.opener.Ext,',
                        'extlog = ext && ext.log;',
                    'if (extlog && extlog.out && lastCount != extlog.count) {',
                        'lastCount = extlog.count;',
                        'var s = "<tt>" + extlog.out.join("~~~").replace(/[&]/g, "&amp;").replace(/[<]/g, "&lt;").replace(/[ ]/g, " ").replace(/\\~\\~\\~/g, "<br/>") + "</tt>";',
                        'document.body.innerHTML = s;',
                    '}',
                    'setTimeout(update, 1000);',
                '}',
                'setTimeout(update, 1000);',
            '</script></head><body></body></html>'].join(''));
    };

    nullLog = function(){};
    nullLog.info = nullLog.warn = nullLog.error = Ext.emptyFn;
    //update ext version
    //Ext.setVersion('extjs','4.2.1.883');

    Ext.apply(Ext,{
        SSL_SECURE_URL : isSecure && isIE ? 'javascript:\'\'':'about:blank',

        plainTableCls:Ext.buildSettings.baseCSSPrefix +'table-plain',

        plainListCls:Ext.buildSettings.baseCSSPrefix +'list-plain',

        enableNestedListenerRemoval:false,

        USE_NATIVE_JSON:false,

        getDom:function(el,strict)
        {
            if(!el || !document)
            {
                return null;
            }

            if(el.dom)
            {
                return el.dom;
            }
            else
            {
                if(Ext.type(el) == 'string')
                {
                    var e = Ext.getElementById(el);

                    if(e && isIE && strict)
                    {
                        if(el == e.getAttribute('id'))
                        {
                            return e;
                        }
                        else
                        {
                            return null;
                        }
                    }

                    return e;
                }
                else
                {
                    return el;
                }
            }
        },

        removeNode:isIE6 || isIE7 || isIE8 ?
            (function(){
                var d ;
                return function(n){
                    if(n && n.tagName.toUpperCase() != 'BODY')
                    {
                        (Eet.enableNestedListerRemoval )?Ext.EventManager.purgeElement(n):Ext.EventManager.removeAll(n);

                        var cache = Ext.cache,id = n.id;

                        if(cache[id])
                        {
                            delete cache[id].dom;
                            delete cache[id];
                        }

                        if(isIE8 && n.parentNode)
                        {
                            n.parentNode.removeChild(n);
                        }
                        d = d|| document.createElement('div');
                        d.appendChild(n);
                        d.innerHTML = '';
                    }
                }
            })() :function(n){

                if(n && n.parentNode && n.tagName.toUpperCase() !='BODY')
                {
                    (Ext.enableNestedListenerRemoval) ? Ext.EventManager.purgeElement(n):Ext.EventManager.removeAll(n);

                    var cahce = Ext.cache,id = n.id;

                    if(cache[id])
                    {
                        delete cache[id].dom;
                        delete cache[id];
                    }

                    n.parentNode.removeChild(n);
                }
            },
        isStrict:isStrict,

        isIEQuirks :isIE && (!isStrict && (isIE6 || isIE7 || isIE8 || isIE9)),

        isOpera:isOpera,

        isOPera10_5:isOpera10_5,

        /**
         * True if the detected browser uses WebKit.
         * @type Boolean
         */
        isWebKit : isWebKit,

        /**
         * True if the detected browser is Chrome.
         * @type Boolean
         */
        isChrome : isChrome,

        /**
         * True if the detected browser is Safari.
         * @type Boolean
         */
        isSafari : isSafari,

        /**
         * True if the detected browser is Safari 3.x.
         * @type Boolean
         */
        isSafari3 : isSafari3,

        /**
         * True if the detected browser is Safari 4.x.
         * @type Boolean
         */
        isSafari4 : isSafari4,

        /**
         * True if the detected browser is Safari 5.x.
         * @type Boolean
         */
        isSafari5 : isSafari5,

        /**
         * True if the detected browser is Safari 5.0.x.
         * @type Boolean
         */
        isSafari5_0 : isSafari5_0,

        /**
         * True if the detected browser is Safari 2.x.
         * @type Boolean
         */
        isSafari2 : isSafari2,

        /**
         * True if the detected browser is Internet Explorer.
         * @type Boolean
         */
        isIE : isIE,

        /**
         * True if the detected browser is Internet Explorer 6.x.
         * @type Boolean
         */
        isIE6 : isIE6,

        /**
         * True if the detected browser is Internet Explorer 7.x.
         * @type Boolean
         */
        isIE7 : isIE7,

        /**
         * True if the detected browser is Internet Explorer 7.x or lower.
         * @type Boolean
         */
        isIE7m : isIE6 || isIE7,

        /**
         * True if the detected browser is Internet Explorer 7.x or higher.
         * @type Boolean
         */
        isIE7p : isIE && !isIE6,

        /**
         * True if the detected browser is Internet Explorer 8.x.
         * @type Boolean
         */
        isIE8 : isIE8,

        /**
         * True if the detected browser is Internet Explorer 8.x or lower.
         * @type Boolean
         */
        isIE8m : isIE6 || isIE7 || isIE8,

        /**
         * True if the detected browser is Internet Explorer 8.x or higher.
         * @type Boolean
         */
        isIE8p : isIE && !(isIE6 || isIE7),

        /**
         * True if the detected browser is Internet Explorer 9.x.
         * @type Boolean
         */
        isIE9 : isIE9,

        /**
         * True if the detected browser is Internet Explorer 9.x or lower.
         * @type Boolean
         */
        isIE9m : isIE6 || isIE7 || isIE8 || isIE9,

        /**
         * True if the detected browser is Internet Explorer 9.x or higher.
         * @type Boolean
         */
        isIE9p : isIE && !(isIE6 || isIE7 || isIE8),

        /**
         * True if the detected browser is Internet Explorer 10.x.
         * @type Boolean
         */
        isIE10 : isIE10, 

        /**
         * True if the detected browser is Internet Explorer 10.x or lower.
         * @type Boolean
         */
        isIE10m : isIE6 || isIE7 || isIE8 || isIE9 || isIE10,

        /**
         * True if the detected browser is Internet Explorer 10.x or higher.
         * @type Boolean
         */
        isIE10p : isIE && !(isIE6 || isIE7 || isIE8 || isIE9),

        /**
         * True if the detected browser uses the Gecko layout engine (e.g. Mozilla, Firefox).
         * @type Boolean
         */
        isGecko : isGecko,

        /**
         * True if the detected browser uses a Gecko 1.9+ layout engine (e.g. Firefox 3.x).
         * @type Boolean
         */
        isGecko3 : isGecko3,

        /**
         * True if the detected browser uses a Gecko 2.0+ layout engine (e.g. Firefox 4.x).
         * @type Boolean
         */
        isGecko4 : isGecko4,

        /**
         * True if the detected browser uses a Gecko 5.0+ layout engine (e.g. Firefox 5.x).
         * @type Boolean
         */
        isGecko5 : isGecko5,

        /**
         * True if the detected browser uses a Gecko 5.0+ layout engine (e.g. Firefox 5.x).
         * @type Boolean
         */
        isGecko10 : isGecko10,

        /**
         * True if the detected browser uses FireFox 3.0
         * @type Boolean
         */
        isFF3_0 : isFF3_0,

        /**
         * True if the detected browser uses FireFox 3.5
         * @type Boolean
         */
        isFF3_5 : isFF3_5,

        /**
         * True if the detected browser uses FireFox 3.6
         * @type Boolean
         */
        isFF3_6 : isFF3_6,

        /**
         * True if the detected browser uses FireFox 4
         * @type Boolean
         */
        isFF4 : 4 <= firefoxVersion && firefoxVersion < 5,

        /**
         * True if the detected browser uses FireFox 5
         * @type Boolean
         */
        isFF5 : 5 <= firefoxVersion && firefoxVersion < 6,

        /**
         * True if the detected browser uses FireFox 10
         * @type Boolean
         */
        isFF10 : 10 <= firefoxVersion && firefoxVersion < 11,

        /**
         * True if the detected platform is Linux.
         * @type Boolean
         */
        isLinux : isLinux,

        /**
         * True if the detected platform is Windows.
         * @type Boolean
         */
        isWindows : isWindows,

        /**
         * True if the detected platform is Mac OS.
         * @type Boolean
         */
        isMac : isMac,

        /**
         * The current version of Chrome (0 if the browser is not Chrome).
         * @type Number
         */
        chromeVersion: chromeVersion,

        /**
         * The current version of Firefox (0 if the browser is not Firefox).
         * @type Number
         */
        firefoxVersion: firefoxVersion,

        /**
         * The current version of IE (0 if the browser is not IE). This does not account
         * for the documentMode of the current page, which is factored into {@link #isIE7},
         * {@link #isIE8} and {@link #isIE9}. Thus this is not always true:
         *
         *     Ext.isIE8 == (Ext.ieVersion == 8)
         *
         * @type Number
         */
        ieVersion: ieVersion,

        /**
         * The current version of Opera (0 if the browser is not Opera).
         * @type Number
         */
        operaVersion: operaVersion,

        /**
         * The current version of Safari (0 if the browser is not Safari).
         * @type Number
         */
        safariVersion: safariVersion,

        /**
         * The current version of WebKit (0 if the browser does not use WebKit).
         * @type Number
         */
        webKitVersion: webKitVersion,

        /**
         * True if the page is running over SSL
         * @type Boolean
         */
        isSecure: isSecure,

        BLANK_IMAGE_URL:(isIE6 || isIE7) ? '/' +'www.sencha.com/s.gif' : 'data:image/gif;base64,R0lGODlhAQABAID/AMDAwAAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==',
        value:function(v,defaultValue,allowBlank)
        {
            return Ext.isEmpty(v,allowBlank) ?defaultValue:v;
        },
        // escape regular expression
        escapeRe:function(s)
        {
            return s.replace(/([-.*+?\^${}()|\[\]\/\\])/g, "\\$1");
        },
        addBehaviors:function(o)
        {
            if(!Ext.isReady)
            {
                Ext.onReady(function(){
                    Ext.addBehaviors(o);
                });
            }
            else
            {
                var cache = {}, parts,b,s;
                for(b in o)
                {
                    if((parts = b.split('@'))[1])
                    {
                        s = parts[0];
                        if(!cache[s])
                        {
                            cache[s] = Ext.select(s);
                        }

                        cache[s].on(parts[1],o[b]);
                    }
                }

                cache = null;
            }
        },

        getScrollbarSize:function(force)
        {
            if(!Ext.isReady)
            {
                return {};
            }

            if(force || !scorllbarSize)
            {
                var db = document.body,div = document.createElement('div');

                div.style.width = div.style.height = '100px';
                div.style.overflow = 'scroll';
                div.style.position = 'absolute';

                db.appendChild(div);

                scrollbarSize = {
                    width :div.offsetWidth - div.clientWidth,
                    height:div.offsetHeight - div.clientHeight
                };

                db.removeChild(div);
            }

            return scrollbarSize;
        },

        getScrollBarWidth:function(force)
        {
            var size = Ext.getScrollbarSize(force);
            return size.width +2;
        },
        copyTo:function(dest,source,names,usePrototypeKeys)
        {
            if(Ext.type(names)=='string')
            {
                names = names.split(/[,;\s]/);
            }

            var n,nLen = names ? names.length :0,name;
            for(n =0 ;n<nLen;n++)
            {
                if(userPrototypeKeys || score.hasOwnProperty(name))
                {
                    dest[name]=source[name];
                }
            }

            return dest;
        },
        destoryMembers:function(o)
        {
            for(var i=1,a=arguemnts,len = a.length;i<len;i++)
            {
                Ext.destory(a[i]);
                delete o[a[i]];
            }
        },
        log:log || nullLog,
        partition:function(arr,truth)
        {
            var ret = [[],[]],a,v,aLen = arr.length;

            for(a = 0;a<aLen;a++)
            {
                v =arr[a];
                ret[(truth && truth(v,a,arr)) || (!truth && v) ? 0 :1].push(v);
            }
        },
        invoke:function(arr,methodName)
        {
            var ret = [],args = Array.prototype.slice.call(arguments,2),
                a,v,aLen = arr.length;
            for(a = 0;a<aLen;a++)
            {
                v = arr[a];
                if(v && typeof v[methodName]=='function')
                {
                    ret.push(v[methodName].apply(v,args));
                }
                else
                {
                    ret.push(undefined);
                }
            }

            return ret;

        },
        zip:function()
        {
            var parts = Ext.partition(arguments,function(val){return typeof val!='function';}),
            arrs = parts[0],
            fn=parts[1][0],
            len=Ext.max(Ext.pluck(arrs,'length')),
            ret = [],i,j,aLen;

            for(i=0;i<len;i++)
            {
                ret[i] = [];
                if(fn)
                {
                    ret[i]=fn.apply(fn,Ext.pluck(arrs,i));
                }
                else
                {
                    for(j=0,aLen = arrs.length;j<aLen;j++)
                    {
                        ret[i].push(arrs[j][i]);
                    }
                }
            }

            return ret;
        },
        toSentence:function(items,connector)
        {
            var length = items.length,head,tail;
            if(length<1)
            {
                return items[0];
            }
            else
            {
                head = item.slice(0,length-1);
                tail = item[length-1];
                return Ext.util.Format.format("{0} {1} {2}",head.join(", "),eonnector || 'and' ,tail);
            }
        },
        seteGlyhpFontFamily:function(fontFamily)
        {
            Ext._glyphFontFamily = ontFamily;
        },
        useShims:isIE6

    });//end Ext.apply(Ext,{});

}());
Ext.application = function(config)
{
    var App,paths,ns;

    if(typeof config === 'string')
    {
        Ext.require(config,function(){
            App = Ext.ClassManager.get(config);
        });
    }
    else
    {
        Ext.loader.setPath(config.name,config.appFolder |'app');

        if(paths = config.paths)
        {
            for(ns in paths)
            {
                if(paths.hasOwnPropety(ns))
                {
                    Ext.Loader.setPath(ns,paths[ns]);
                }
            }
        }

        config['paths processed'] = true;

        Ext.define(config.name + '.$application',Ext.apply({extend:'Ext.app.Application'},config),function(){App = this});
    }

    Ext.onReady(function(){
        Ext.app.Application.instance = new App();
    });
}