/**
 * Created by JetBrains PhpStorm.
 * User: taoqili
 * Date: 12-2-20
 * Time: 上午11:19
 * To change this template use File | Settings | File Templates.
 */

(function(){

    var video = {},
        uploadVideoList = [],
        isModifyUploadVideo = false,
        uploadFile,
        onlineFile;

    window.onload = function(){
        $focus($G("videoUrl"));
        initTabs();
        initAlign();
        initVideo();
        initUpload();
    };

    /* 初始化tab标签 */
    function initTabs() {
        var tabs = $G('tabHeads').children;
        for (var i = 0; i < tabs.length; i++) {
            domUtils.on(tabs[i], "click", function (e) {
                var target = e.target || e.srcElement;
                setTabFocus(target.getAttribute('data-content-id'));
            });
        }

        var video = editor.selection.getRange().getClosedNode();
        if (video && video.tagName && video.tagName.toLowerCase() == 'video') {
            setTabFocus('remote');
        } else {
            setTabFocus('upload');
        }
    }

    /* 初始化tabbody */
    function setTabFocus(id) {
        if(!id) return;
        var i, bodyId, tabs = $G('tabHeads').children;
        for (i = 0; i < tabs.length; i++) {
            bodyId = tabs[i].getAttribute('data-content-id');
            if (bodyId == id) {
                domUtils.addClass(tabs[i], 'focus');
                domUtils.addClass($G(bodyId), 'focus');
            } else {
                domUtils.removeClasses(tabs[i], 'focus');
                domUtils.removeClasses($G(bodyId), 'focus');
            }
        }
        document.getElementById('search-container').setAttribute('class', 'none');
        switch (id) {
            case "online":
                document.getElementById('search-container').setAttribute('class', '');
                initOnline();
                break;
        }
    }

    /* 初始化搜索点击事件 */
    function initAlign(){
        domUtils.on($G("search-submit"), 'click', function(e){
            initOnline();
        });
    }

    /* 获取对齐方式 */
    function getAlign(){
        return 'none';
    }

    function initVideo(){
        createAlignButton( ["videoFloat", "upload_alignment"] );
        addUrlChangeListener($G("videoUrl"));
        addOkListener();

        //编辑视频时初始化相关信息
        (function(){
            var img = editor.selection.getRange().getClosedNode(),url;
            if(img && img.className){
                var hasFakedClass = (img.className.indexOf("edui-faked-video")!=-1),
                    hasUploadClass = img.className.indexOf("edui-upload-video")!=-1;
                if(hasFakedClass || hasUploadClass) {
                    $G("videoUrl").value = url = img.getAttribute("_url");
                    $G("videoWidth").value = img.width;
                    $G("videoHeight").value = img.height;
                    var align = domUtils.getComputedStyle(img,"float"),
                        parentAlign = domUtils.getComputedStyle(img.parentNode,"text-align");
                    updateAlignButton(parentAlign==="center"?"center":align);
                }
                if(hasUploadClass) {
                    isModifyUploadVideo = true;
                }
                setTabFocus('video');
            }
            createPreviewVideo(url);
        })();
    }

    /**
     * 监听确认和取消两个按钮事件，用户执行插入或者清空正在播放的视频实例操作
     */
    function addOkListener(){
        var remote = false, list = [];
        dialog.onok = function(){
            $G("preview").innerHTML = "";
            var currentTab =  findFocus("tabHeads","tabSrc");
            switch(currentTab){
                case "video":
                    return insertSingle();
                    break;
                case "videoSearch":
                    return insertSearch("searchList");
                    break;
                case "upload":
                    return insertUpload();
                    break;
                case "online":
                    list = onlineFile.getInsertList();
                    if(list) {
                        editor.execCommand('insertvideo', list);
                    }
                    break;
            }
        };
        dialog.oncancel = function(){
            $G("preview").innerHTML = "";
        };
    }

    /**
     * 在线视频
     */
    function initOnline(){
        onlineFile = onlineFile || new OnlineFile('videoList');
        onlineFile.reset();

    }
    function OnlineFile(target) {
        this.container = utils.isString(target) ? document.getElementById(target) : target;
        this.init();
    }
    OnlineFile.prototype = {
        init: function () {
            this.reset();
            this.initEvents();
        },
        /* 初始化容器 */
        initContainer: function () {
            this.container.innerHTML = '';
            this.list = document.createElement('ul');
            this.clearFloat = document.createElement('li');

            domUtils.addClass(this.list, 'list');
            domUtils.addClass(this.clearFloat, 'clearFloat');

            this.list.appendChild(this.clearFloat);
            this.container.appendChild(this.list);
        },
        /* 初始化滚动事件,滚动到地步自动拉取数据 */
        initEvents: function () {
            var _this = this;

            /* 滚动拉取视频 */
            domUtils.on($G('videoList'), 'scroll', function(e){
                var panel = this;
                if (panel.scrollHeight - (panel.offsetHeight + panel.scrollTop) < 10) {
                    _this.getImageData();
                }
            });
            /* 选中视频 */
            domUtils.on(this.container, 'click', function (e) {
                var target = e.target || e.srcElement,
                    li = target.parentNode;

                if (li.tagName.toLowerCase() == 'li') {
                    if (domUtils.hasClass(li, 'selected')) {
                        domUtils.removeClasses(li, 'selected');
                    } else {
                        domUtils.addClass(li, 'selected');
                    }
                }
            });
        },
        /* 初始化第一次的数据 */
        initData: function () {

            /* 拉取数据需要使用的值 */
            this.state = 0;
            this.listSize = editor.getOpt('videoManagerListSize');
            this.listIndex = 0;
            this.listEnd = false;

            /* 第一次拉取数据 */
            this.getImageData();
        },
        /* 重置界面 */
        reset: function() {
            this.initContainer();
            this.initData();
        },
        /* 向后台拉取视频列表数据 */
        getImageData: function () {
            var _this = this;

            if(!_this.listEnd && !this.isLoadingData) {
                this.isLoadingData = true;
                var url = editor.getActionUrl(editor.getOpt('videoManagerActionName')),
                    isJsonp = utils.isCrossDomainUrl(url);
                ajax.request(url, {
                    'timeout': 100000,
                    'dataType': isJsonp ? 'jsonp':'',
                    'data': utils.extend({
                            start: this.listIndex,
                            size: this.listSize,
                            keywords: document.getElementById('search-input').value
                        }, editor.queryCommandValue('serverparam')),
                    'method': 'get',
                    'onsuccess': function (r) {
                        try {
                            var json = isJsonp ? r:eval('(' + r.responseText + ')');
                            if (json.state == 'SUCCESS') {
                                _this.pushData(json.list);
                                _this.listIndex = parseInt(json.start) + parseInt(json.list.length);
                                if(_this.listIndex >= json.total) {
                                    _this.listEnd = true;
                                }
                                _this.isLoadingData = false;
                            }
                        } catch (e) {
                            if(r.responseText.indexOf('ue_separate_ue') != -1) {
                                var list = r.responseText.split(r.responseText);
                                _this.pushData(list);
                                _this.listIndex = parseInt(list.length);
                                _this.listEnd = true;
                                _this.isLoadingData = false;
                            }
                        }
                    },
                    'onerror': function () {
                        _this.isLoadingData = false;
                    }
                });
            }
        },
        /* 添加视频到列表界面上 */
        pushData: function (list) {
            var i, item, video, icon, _this = this,
                urlPrefix = editor.getOpt('videoManagerUrlPrefix');
            for (i = 0; i < list.length; i++) {
                if(list[i] && list[i].url) {
                    item = document.createElement('li');
                    video = document.createElement('video');
                    icon = document.createElement('span');
                    video.width = 100;
                    video.height = 100;
                    video.setAttribute('src', urlPrefix + list[i].url + (list[i].url.indexOf('?') == -1 ? '?noCache=':'&noCache=') + (+new Date()).toString(36) );
                    video.setAttribute('_src', urlPrefix + list[i].url);
                    video.setAttribute('controls', 'controls');
                    video.setAttribute('preload', 'auto');
                    domUtils.addClass(icon, 'icon');

                    item.appendChild(video);
                    item.appendChild(icon);

                    // 原名功能 start
                    var original = document.createElement('p');
                    original.setAttribute('class', 'attachment-title');
                    original.innerHTML = list[i].original;
                    item.appendChild(original);
                    // 原名功能 end

                    // 视频添加删除功能 start
                    item.appendChild($("<span class='delbtn' data-id='" + list[i].id + "'>x</span>").click(function() {
                        var del = $(this);
                        try{
                            window.event.cancelBubble = true; //停止冒泡
                            window.event.returnValue = false; //阻止事件的默认行为
                            window.event.preventDefault();    //取消事件的默认行为  
                            window.event.stopPropagation();   //阻止事件的传播
                        } finally {
                            if(!confirm("确定要删除吗？")) return;
                            $.post(editor.getOpt("serverUrl") + "?action=deletefile", { "id": del.attr("data-id") }, function(response) {
                                if (response.state == 'SUCCESS') del.parent().remove();
                                else alert(response.state);
                            });
                        }
                    })[0]);
                    // 视频添加删除功能 end

                    this.list.insertBefore(item, this.clearFloat);
                }
            }
        },
        getInsertList: function () {
            var i, lis = this.list.children, list = [], align = '';
            for (i = 0; i < lis.length; i++) {
                if (domUtils.hasClass(lis[i], 'selected')) {
                    var video = lis[i].firstChild,
                        src = video.getAttribute('_src');
                    list.push({
                        src: src,
                        _src: src,
                        alt: src.substr(src.lastIndexOf('/') + 1),
                        floatStyle: align
                    });
                }

            }
            return list;
        }
    };


    /**
     * 依据传入的align值更新按钮信息
     * @param align
     */
    function updateAlignButton( align ) {
        var aligns = $G( "videoFloat" ).children;
        for ( var i = 0, ci; ci = aligns[i++]; ) {
            if ( ci.getAttribute( "name" ) == align ) {
                if ( ci.className !="focus" ) {
                    ci.className = "focus";
                }
            } else {
                if ( ci.className =="focus" ) {
                    ci.className = "";
                }
            }
        }
    }

    /**
     * 将单个视频信息插入编辑器中
     */
    function insertSingle(){
        var width = $G("videoWidth"),
            height = $G("videoHeight"),
            url=$G('videoUrl').value,
            align = findFocus("videoFloat","name");
        if(!url) return false;
        if ( !checkNum( [width, height] ) ) return false;
        editor.execCommand('insertvideo', {
            src: convert_url(url),
            width: width.value,
            height: height.value,
            align: align
        }, isModifyUploadVideo ? 'upload':null);
    }

    /**
     * 将元素id下的所有代表视频的图片插入编辑器中
     * @param id
     */
    function insertSearch(id){
        var imgs = domUtils.getElementsByTagName($G(id),"img"),
            videoObjs=[];
        for(var i=0,img; img=imgs[i++];){
            if(img.getAttribute("selected")){
                videoObjs.push({
                    src:img.getAttribute("ue_video_url"),
                    width:420,
                    height:280,
                    align:"none"
                });
            }
        }
        editor.execCommand('insertvideo',videoObjs);
    }

    /**
     * 找到id下具有focus类的节点并返回该节点下的某个属性
     * @param id
     * @param returnProperty
     */
    function findFocus( id, returnProperty ) {
        var tabs = $G( id ).children,
                property;
        for ( var i = 0, ci; ci = tabs[i++]; ) {
            if ( ci.className=="focus" ) {
                property = ci.getAttribute( returnProperty );
                break;
            }
        }
        return property;
    }
    function convert_url(url){
        if ( !url ) return '';
        url = utils.trim(url)
            .replace(/v\.youku\.com\/v_show\/id_([\w\-=]+)\.html/i, 'player.youku.com/player.php/sid/$1/v.swf')
            .replace(/(www\.)?youtube\.com\/watch\?v=([\w\-]+)/i, "www.youtube.com/v/$2")
            .replace(/youtu.be\/(\w+)$/i, "www.youtube.com/v/$1")
            .replace(/v\.ku6\.com\/.+\/([\w\.]+)\.html.*$/i, "player.ku6.com/refer/$1/v.swf")
            .replace(/www\.56\.com\/u\d+\/v_([\w\-]+)\.html/i, "player.56.com/v_$1.swf")
            .replace(/www.56.com\/w\d+\/play_album\-aid\-\d+_vid\-([^.]+)\.html/i, "player.56.com/v_$1.swf")
            .replace(/v\.pps\.tv\/play_([\w]+)\.html.*$/i, "player.pps.tv/player/sid/$1/v.swf")
            .replace(/www\.letv\.com\/ptv\/vplay\/([\d]+)\.html.*$/i, "i7.imgs.letv.com/player/swfPlayer.swf?id=$1&autoplay=0")
            .replace(/www\.tudou\.com\/programs\/view\/([\w\-]+)\/?/i, "www.tudou.com/v/$1")
            .replace(/v\.qq\.com\/cover\/[\w]+\/[\w]+\/([\w]+)\.html/i, "static.video.qq.com/TPout.swf?vid=$1")
            .replace(/v\.qq\.com\/.+[\?\&]vid=([^&]+).*$/i, "static.video.qq.com/TPout.swf?vid=$1")
            .replace(/my\.tv\.sohu\.com\/[\w]+\/[\d]+\/([\d]+)\.shtml.*$/i, "share.vrs.sohu.com/my/v.swf&id=$1");

        return url;
    }

    /**
      * 检测传入的所有input框中输入的长宽是否是正数
      * @param nodes input框集合，
      */
     function checkNum( nodes ) {
         for ( var i = 0, ci; ci = nodes[i++]; ) {
             var value = ci.value;
             if ( !isNumber( value ) && value) {
                 alert( lang.numError );
                 ci.value = "";
                 ci.focus();
                 return false;
             }
         }
         return true;
     }

    /**
     * 数字判断
     * @param value
     */
    function isNumber( value ) {
        return /(0|^[1-9]\d*$)/.test( value );
    }

    /**
      * 创建图片浮动选择按钮
      * @param ids
      */
     function createAlignButton( ids ) {
         for ( var i = 0, ci; ci = ids[i++]; ) {
             var floatContainer = $G( ci ),
                     nameMaps = {"none":lang['default'], "left":lang.floatLeft, "right":lang.floatRight, "center":lang.block};
             for ( var j in nameMaps ) {
                 var div = document.createElement( "div" );
                 div.setAttribute( "name", j );
                 if ( j == "none" ) div.className="focus";
                 div.style.cssText = "background:url(images/" + j + "_focus.jpg);";
                 div.setAttribute( "title", nameMaps[j] );
                 floatContainer.appendChild( div );
             }
             switchSelect( ci );
         }
     }

    /**
     * 选择切换
     * @param selectParentId
     */
    function switchSelect( selectParentId ) {
        var selects = $G( selectParentId ).children;
        for ( var i = 0, ci; ci = selects[i++]; ) {
            domUtils.on( ci, "click", function () {
                for ( var j = 0, cj; cj = selects[j++]; ) {
                    cj.className = "";
                    cj.removeAttribute && cj.removeAttribute( "class" );
                }
                this.className = "focus";
            } )
        }
    }

    /**
     * 监听url改变事件
     * @param url
     */
    function addUrlChangeListener(url){
        if (browser.ie) {
            url.onpropertychange = function () {
                createPreviewVideo( this.value );
            }
        } else {
            url.addEventListener( "input", function () {
                createPreviewVideo( this.value );
            }, false );
        }
    }

    /**
     * 根据url生成视频预览
     * @param url
     */
    function createPreviewVideo(url){
        if ( !url )return;

        var conUrl = convert_url(url);
        conUrl = utils.unhtmlForUrl(conUrl);
        if(conUrl)
        {
            $G("preview").innerHTML = '<video class="previewVideo" ' +
                ' src="' + conUrl + '"' +
                ' width="' + 420  + '"' +
                ' height="' + 280  + '"' +
                ' controls="controls" preload="auto" >' +
            '</video>';
        } else {
            $G("preview").innerHTML = '<div class="previewMsg"><span>'+lang.urlError+'</span></div>';
        }
    }


    /* 插入上传视频 */
    function insertUpload(){
        var videoObjs=[],
            uploadDir = editor.getOpt('videoUrlPrefix'),
            width = parseInt($G('upload_width').value, 10) || 420,
            height = parseInt($G('upload_height').value, 10) || 280,
            align = findFocus("upload_alignment","name") || 'none';
        for(var key in uploadVideoList) {
            var file = uploadVideoList[key];
            videoObjs.push({
                src: uploadDir + file.url,
                width:width,
                height:height,
                align:align
            });
        }

        var count = uploadFile.getQueueCount();
        if (count) {
            $('.info', '#queueList').html('<span style="color:red;">' + '还有2个未上传文件'.replace(/[\d]/, count) + '</span>');
            return false;
        } else {
            editor.execCommand('insertvideo', videoObjs, 'upload');
        }
    }

    /*初始化上传标签*/
    function initUpload(){
        uploadFile = new UploadFile('queueList');
    }


    /* 上传附件 */
    function UploadFile(target) {
        this.$wrap = target.constructor == String ? $('#' + target) : $(target);
        this.init();
    }
    UploadFile.prototype = {
        init: function () {
            this.fileList = [];
            this.initContainer();
            this.initUploader();
        },
        initContainer: function () {
            this.$queue = this.$wrap.find('.filelist');
        },
        /* 初始化容器 */
        initUploader: function () {
            var _this = this,
                $ = jQuery,    // just in case. Make sure it's not an other libaray.
                $wrap = _this.$wrap,
            // 图片容器
                $queue = $wrap.find('.filelist'),
            // 状态栏，包括进度和控制按钮
                $statusBar = $wrap.find('.statusBar'),
            // 文件总体选择信息。
                $info = $statusBar.find('.info'),
            // 上传按钮
                $upload = $wrap.find('.uploadBtn'),
            // 上传按钮
                $filePickerBtn = $wrap.find('.filePickerBtn'),
            // 上传按钮
                $filePickerBlock = $wrap.find('.filePickerBlock'),
            // 没选择文件之前的内容。
                $placeHolder = $wrap.find('.placeholder'),
            // 总体进度条
                $progress = $statusBar.find('.progress').hide(),
            // 添加的文件数量
                fileCount = 0,
            // 添加的文件总大小
                fileSize = 0,
            // 优化retina, 在retina下这个值是2
                ratio = window.devicePixelRatio || 1,
            // 缩略图大小
                thumbnailWidth = 103 * ratio,
                thumbnailHeight = 103 * ratio,
            // 可能有pedding, ready, uploading, confirm, done.
                state = '',
            // 所有文件的进度信息，key为file id
                percentages = {},
                supportTransition = (function () {
                    var s = document.createElement('p').style,
                        r = 'transition' in s ||
                            'WebkitTransition' in s ||
                            'MozTransition' in s ||
                            'msTransition' in s ||
                            'OTransition' in s;
                    s = null;
                    return r;
                })(),
            // WebUploader实例
                uploader,
                actionUrl = editor.getActionUrl(editor.getOpt('videoActionName')),
                fileMaxSize = editor.getOpt('videoMaxSize'),
                acceptExtensions = (editor.getOpt('videoAllowFiles') || []).join('').replace(/\./g, ',').replace(/^[,]/, '');;

            if (!WebUploader.Uploader.support()) {
                $('#filePickerReady').after($('<div>').html(lang.errorNotSupport)).hide();
                return;
            } else if (!editor.getOpt('videoActionName')) {
                $('#filePickerReady').after($('<div>').html(lang.errorLoadConfig)).hide();
                return;
            }

            uploader = _this.uploader = WebUploader.create({
                pick: {
                    id: '#filePickerReady',
                    label: lang.uploadSelectFile
                },
                swf: '../../third-party/webuploader/Uploader.swf',
                server: actionUrl,
                fileVal: editor.getOpt('videoFieldName'),
                duplicate: true,
                fileSingleSizeLimit: fileMaxSize,
                compress: false,
                threads: 1
            });
            uploader.addButton({
                id: '#filePickerBlock'
            });
            uploader.addButton({
                id: '#filePickerBtn',
                label: lang.uploadAddFile
            });

            setState('pedding');

            // 当有文件添加进来时执行，负责view的创建
            function addFile(file) {
                var $li = $('<li id="' + file.id + '">' +
                        '<p class="title">' + file.name + '</p>' +
                        '<p class="imgWrap"></p>' +
                        '<p class="progress"><span></span></p>' +
                        '</li>'),

                    $btns = $('<div class="file-panel">' +
                        '<span class="cancel">' + lang.uploadDelete + '</span>' +
                        '<span class="rotateRight">' + lang.uploadTurnRight + '</span>' +
                        '<span class="rotateLeft">' + lang.uploadTurnLeft + '</span></div>').appendTo($li),
                    $prgress = $li.find('p.progress span'),
                    $wrap = $li.find('p.imgWrap'),
                    $info = $('<p class="error"></p>').hide().appendTo($li),

                    showError = function (code) {
                        switch (code) {
                            case 'exceed_size':
                                text = lang.errorExceedSize;
                                break;
                            case 'interrupt':
                                text = lang.errorInterrupt;
                                break;
                            case 'http':
                                text = lang.errorHttp;
                                break;
                            case 'not_allow_type':
                                text = lang.errorFileType;
                                break;
                            default:
                                text = lang.errorUploadRetry;
                                break;
                        }
                        $info.text(text).show();
                    };

                if (file.getStatus() === 'invalid') {
                    showError(file.statusText);
                } else {
                    $wrap.text(lang.uploadPreview);
                    if ('|png|jpg|jpeg|bmp|gif|'.indexOf('|'+file.ext.toLowerCase()+'|') == -1) {
                        $wrap.empty().addClass('notimage').append('<i class="file-preview file-type-' + file.ext.toLowerCase() + '"></i>' +
                            '<span class="file-title">' + file.name + '</span>');
                    } else {
                        if (browser.ie && browser.version <= 7) {
                            $wrap.text(lang.uploadNoPreview);
                        } else {
                            uploader.makeThumb(file, function (error, src) {
                                if (error || !src || (/^data:/.test(src) && browser.ie && browser.version <= 7)) {
                                    $wrap.text(lang.uploadNoPreview);
                                } else {
                                    var $img = $('<img src="' + src + '">');
                                    $wrap.empty().append($img);
                                    $img.on('error', function () {
                                        $wrap.text(lang.uploadNoPreview);
                                    });
                                }
                            }, thumbnailWidth, thumbnailHeight);
                        }
                    }
                    percentages[ file.id ] = [ file.size, 0 ];
                    file.rotation = 0;

                    /* 检查文件格式 */
                    if (!file.ext || acceptExtensions.indexOf(file.ext.toLowerCase()) == -1) {
                        showError('not_allow_type');
                        uploader.removeFile(file);
                    }
                }

                file.on('statuschange', function (cur, prev) {
                    if (prev === 'progress') {
                        $prgress.hide().width(0);
                    } else if (prev === 'queued') {
                        $li.off('mouseenter mouseleave');
                        $btns.remove();
                    }
                    // 成功
                    if (cur === 'error' || cur === 'invalid') {
                        showError(file.statusText);
                        percentages[ file.id ][ 1 ] = 1;
                    } else if (cur === 'interrupt') {
                        showError('interrupt');
                    } else if (cur === 'queued') {
                        percentages[ file.id ][ 1 ] = 0;
                    } else if (cur === 'progress') {
                        $info.hide();
                        $prgress.css('display', 'block');
                    } else if (cur === 'complete') {
                    }

                    $li.removeClass('state-' + prev).addClass('state-' + cur);
                });

                $li.on('mouseenter', function () {
                    $btns.stop().animate({height: 30});
                });
                $li.on('mouseleave', function () {
                    $btns.stop().animate({height: 0});
                });

                $btns.on('click', 'span', function () {
                    var index = $(this).index(),
                        deg;

                    switch (index) {
                        case 0:
                            uploader.removeFile(file);
                            return;
                        case 1:
                            file.rotation += 90;
                            break;
                        case 2:
                            file.rotation -= 90;
                            break;
                    }

                    if (supportTransition) {
                        deg = 'rotate(' + file.rotation + 'deg)';
                        $wrap.css({
                            '-webkit-transform': deg,
                            '-mos-transform': deg,
                            '-o-transform': deg,
                            'transform': deg
                        });
                    } else {
                        $wrap.css('filter', 'progid:DXImageTransform.Microsoft.BasicImage(rotation=' + (~~((file.rotation / 90) % 4 + 4) % 4) + ')');
                    }

                });

                $li.insertBefore($filePickerBlock);
            }

            // 负责view的销毁
            function removeFile(file) {
                var $li = $('#' + file.id);
                delete percentages[ file.id ];
                updateTotalProgress();
                $li.off().find('.file-panel').off().end().remove();
            }

            function updateTotalProgress() {
                var loaded = 0,
                    total = 0,
                    spans = $progress.children(),
                    percent;

                $.each(percentages, function (k, v) {
                    total += v[ 0 ];
                    loaded += v[ 0 ] * v[ 1 ];
                });

                percent = total ? loaded / total : 0;

                spans.eq(0).text(Math.round(percent * 100) + '%');
                spans.eq(1).css('width', Math.round(percent * 100) + '%');
                updateStatus();
            }

            function setState(val, files) {

                if (val != state) {

                    var stats = uploader.getStats();

                    $upload.removeClass('state-' + state);
                    $upload.addClass('state-' + val);

                    switch (val) {

                        /* 未选择文件 */
                        case 'pedding':
                            $queue.addClass('element-invisible');
                            $statusBar.addClass('element-invisible');
                            $placeHolder.removeClass('element-invisible');
                            $progress.hide(); $info.hide();
                            uploader.refresh();
                            break;

                        /* 可以开始上传 */
                        case 'ready':
                            $placeHolder.addClass('element-invisible');
                            $queue.removeClass('element-invisible');
                            $statusBar.removeClass('element-invisible');
                            $progress.hide(); $info.show();
                            $upload.text(lang.uploadStart);
                            uploader.refresh();
                            break;

                        /* 上传中 */
                        case 'uploading':
                            $progress.show(); $info.hide();
                            $upload.text(lang.uploadPause);
                            break;

                        /* 暂停上传 */
                        case 'paused':
                            $progress.show(); $info.hide();
                            $upload.text(lang.uploadContinue);
                            break;

                        case 'confirm':
                            $progress.show(); $info.hide();
                            $upload.text(lang.uploadStart);

                            stats = uploader.getStats();
                            if (stats.successNum && !stats.uploadFailNum) {
                                setState('finish');
                                return;
                            }
                            break;

                        case 'finish':
                            $progress.hide(); $info.show();
                            if (stats.uploadFailNum) {
                                $upload.text(lang.uploadRetry);
                            } else {
                                $upload.text(lang.uploadStart);
                            }
                            break;
                    }

                    state = val;
                    updateStatus();

                }

                if (!_this.getQueueCount()) {
                    $upload.addClass('disabled')
                } else {
                    $upload.removeClass('disabled')
                }

            }

            function updateStatus() {
                var text = '', stats;

                if (state === 'ready') {
                    text = lang.updateStatusReady.replace('_', fileCount).replace('_KB', WebUploader.formatSize(fileSize));
                } else if (state === 'confirm') {
                    stats = uploader.getStats();
                    if (stats.uploadFailNum) {
                        text = lang.updateStatusConfirm.replace('_', stats.successNum).replace('_', stats.successNum);
                    }
                } else {
                    stats = uploader.getStats();
                    text = lang.updateStatusFinish.replace('_', fileCount).
                        replace('_KB', WebUploader.formatSize(fileSize)).
                        replace('_', stats.successNum);

                    if (stats.uploadFailNum) {
                        text += lang.updateStatusError.replace('_', stats.uploadFailNum);
                    }
                }

                $info.html(text);
            }

            uploader.on('fileQueued', function (file) {
                fileCount++;
                fileSize += file.size;

                if (fileCount === 1) {
                    $placeHolder.addClass('element-invisible');
                    $statusBar.show();
                }

                addFile(file);
            });

            uploader.on('fileDequeued', function (file) {
                fileCount--;
                fileSize -= file.size;

                removeFile(file);
                updateTotalProgress();
            });

            uploader.on('filesQueued', function (file) {
                if (!uploader.isInProgress() && (state == 'pedding' || state == 'finish' || state == 'confirm' || state == 'ready')) {
                    setState('ready');
                }
                updateTotalProgress();
            });

            uploader.on('all', function (type, files) {
                switch (type) {
                    case 'uploadFinished':
                        setState('confirm', files);
                        break;
                    case 'startUpload':
                        /* 添加额外的GET参数 */
                        var params = utils.serializeParam(editor.queryCommandValue('serverparam')) || '',
                            url = utils.formatUrl(actionUrl + (actionUrl.indexOf('?') == -1 ? '?':'&') + 'encode=utf-8&' + params);
                        uploader.option('server', url);
                        setState('uploading', files);
                        break;
                    case 'stopUpload':
                        setState('paused', files);
                        break;
                }
            });

            uploader.on('uploadBeforeSend', function (file, data, header) {
                //这里可以通过data对象添加POST参数
                header['X_Requested_With'] = 'XMLHttpRequest';
            });

            uploader.on('uploadProgress', function (file, percentage) {
                var $li = $('#' + file.id),
                    $percent = $li.find('.progress span');

                $percent.css('width', percentage * 100 + '%');
                percentages[ file.id ][ 1 ] = percentage;
                updateTotalProgress();
            });

            uploader.on('uploadSuccess', function (file, ret) {
                var $file = $('#' + file.id);
                try {
                    var responseText = (ret._raw || ret),
                        json = utils.str2json(responseText);
                    if (json.state == 'SUCCESS') {
                        uploadVideoList.push({
                            'url': json.url,
                            'type': json.type,
                            'original':json.original
                        });
                        $file.append('<span class="success"></span>');
                    } else {
                        $file.find('.error').text(json.state).show();
                    }
                } catch (e) {
                    $file.find('.error').text(lang.errorServerUpload).show();
                }
            });

            uploader.on('uploadError', function (file, code) {
            });
            uploader.on('error', function (code, file) {
                if (code == 'Q_TYPE_DENIED' || code == 'F_EXCEED_SIZE') {
                    addFile(file);
                }
            });
            uploader.on('uploadComplete', function (file, ret) {
            });

            $upload.on('click', function () {
                if ($(this).hasClass('disabled')) {
                    return false;
                }

                if (state === 'ready') {
                    uploader.upload();
                } else if (state === 'paused') {
                    uploader.upload();
                } else if (state === 'uploading') {
                    uploader.stop();
                }
            });

            $upload.addClass('state-' + state);
            updateTotalProgress();
        },
        getQueueCount: function () {
            var file, i, status, readyFile = 0, files = this.uploader.getFiles();
            for (i = 0; file = files[i++]; ) {
                status = file.getStatus();
                if (status == 'queued' || status == 'uploading' || status == 'progress') readyFile++;
            }
            return readyFile;
        },
        refresh: function(){
            this.uploader.refresh();
        }
    };

})();