/**
 * Created by weidy on 2019/1/21.  文件预览
 */
layui.define(['layer','table','element'],function(exports){
    var Home = function(){
        this.id = "vciFilePreview";
        this.previewFileKey = "";
        this.extraParams = {};
        this.viewtype = "pdf";
        this.viewtypeConstant = {
            /**
             * 与后台的VciFileViewTypeConstant对应
             */
            PDF:'pdf',
            XPS:'xps',
            COMMON:'common',
            IMAGES:'images',
            AUDIO:'audio',
            VIDEO:'video',
            FLASH:'flash',
            TEXT:'text',
            HTML:'html',
            ACTIVE:'active'
        };
        this.backPath = configData.compatibility?path:configData.filePreviewPath;
        this.url={
            controller:'vciFilePreviewController/',
            ajaxPreview:'ajaxPreview',
            showXps:'showXps',
            showPdf:'showPdf',
            showCommon:'showCommonFile',
            getPdfUrlForIE:'getPdfUrlForIE',
            listLinkeFile:'vciFileQueryController/gridFiles'
        };
        this.config = {};
    };
    Home.prototype.getContent = function(id){
        var that = this;
        return '<div class="layui-index-home layui-fluid" style="overflow:auto;position:absolute;left:5px;top:5px;background-color: #999999;z-index:auto;" id="vciFilePreview_' + id + '"></div>' +
               '<div id="previewinfo_' + id + '" class="layui-layout-east" style="display:block;position:absolute;right:0;margin-top:5px;margin-right:5px;width:340px;height:98%;max-width:340px;min-width:150px;border:1px solid #e1e1e1">' +
                    '<div lay-filter="panelFileInfo_' + id + '" class="layui-tab layui-tab-card" lay-allowClose="false" style="margin-top:0px;">'+
                        '<ul class="layui-tab-title" lay-allowClose="false">' +
                        '</ul>' +
                        '<div class="layui-tab-content"></div>' +
                        '</div> '+
                    '</div> '+
               '</div>';
    };
    Home.prototype.init = function(id,options){
        var that = this;
        var parent ;
        var isInner = false;
        if(options.showType && options.showType == "inner"){
            parent = $("#vciFilePreview_" + id).parent();
            isInner =true;
        }else{
            parent = $(document);
        }
        var width = (options.width?options.width:(isInner?(parent.width()-380):(parent.width()-430)));
        var height =options.height?options.height: (parent.height()-120);
        if(options.hideRightPanel){
            width = $(document).width()-85;
            $("#previewinfo_" + id).hide();
        }
        options.contentStyle = 'max-width: ' + width + 'px;max-height:' + height +'px;width:' + width + "px;height:" + height + "px;";
        window.print = function(){
            return false;
        };
        that.config[id] = options;
        //需要先到后台生成文件
        $webUtil.get(that.url.controller + that.url.ajaxPreview,options,function(result){
            if(result.success){
                that.doShow(id,result.obj,true);
            }else{
                $webUtil.showErrorMsg(result.msg);
            }
        },function(xhr,err){
            $webUtil.showErrorMsg("下载预览相关的许可出错,可能是文件预览服务没有启动");
        },that.backPath);
    };
    Home.prototype.doShow = function(id,previewVO,first){
        var that = this;
        //不同的类型的显示方式
        var viewtype = previewVO.viewType;
        var previewFileKey = previewVO.previewKey;
        if(that.viewtypeConstant.XPS == viewtype){
            that.showXps(id,previewFileKey,first);
        }else if(that.viewtypeConstant.PDF == viewtype || that.viewtypeConstant.ACTIVE == viewtype){
            //pdf的预览，对于IE8，IE9需要adobe的控件，如果是其他浏览器，则直接显示
            that.showPdf(id,previewFileKey,first,viewtype);
        }else if(that.viewtypeConstant.IMAGES == viewtype){
            that.showImages(id,previewFileKey,first);
        }else if(that.viewtypeConstant.AUDIO == viewtype || that.viewtypeConstant.VIDEO == viewtype){
            that.showVedioAndAudio(id,previewFileKey,first);
        }else if(that.viewtypeConstant.TEXT == viewtype){
            that.showText(id,previewFileKey,first);
        }else if(that.viewtypeConstant.HTML == viewtype){
            that.showHtml(id,previewFileKey,first);
        }else{
            that.downloadFile(id,previewFileKey,first);
        }
    };
    Home.prototype.downloadFile = function(id,previewFileKey,first){
        //下载文件
        var that = this;
        $webUtil.get(that.url.controller + that.url.showCommon,{filePreviewKey:previewFileKey,viewType:that.viewtypeConstant.COMMON},function(result){
            if(result.success){
                that.replaceIframe(id, '<div style="text-align: center;font-size:20px;height:100px;">这个文件不支持预览，将自动为您下载</div>');
                $webUtil.fileDownload(that.backPath + result.obj);
                if(first){
                    that.initRightPanle(id);
                }
            }else{
                $webUtil.showErrorMsg(result.msg);
            }
        },function(xhr,error){
            $webUtil.showErrorMsg("下载预览相关的许可出错,可能是文件预览服务没有启动");
        },that.backPath);
        
    };
    Home.prototype.replaceIframe = function(id,html){
        //替换iframe部分的内容
        $("#vciFilePreview_" + id).find("[name='vciFilePreviewContent']").remove();
        $("#vciFilePreview_" + id).prepend(html);
    };
    Home.prototype.showHtml = function(id,previewFileKey,first){
        //显示html
        var that = this;
        $webUtil.get(that.url.controller + that.url.showCommon,{filePreviewKey:previewFileKey,viewType:that.viewtypeConstant.HTML},function(result){
            if(result.success){
                var iframeUrl = that.backPath+ result.obj ;
                that.replaceIframe(id, '<iframe src="' + iframeUrl +  '" style="' + that.config[id].contentStyle + '" name="vciFilePreviewContent" frameborder="false" scrolling="none" ></iframe>');
                if(first){
                    that.initRightPanle(id);
                }
            }else{
                $webUtil.showErrorMsg(result.msg);
            }
        },function(xhr,error){
            $webUtil.showErrorMsg("获取文件的路径出错，可能是文件预览服务没有启动");
        },that.backPath);
    };
    Home.prototype.showText = function(id,previewFileKey,first){
        //显示普通的文本
        var that = this;
        $webUtil.get(that.url.controller + that.url.showCommon,{filePreviewKey:previewFileKey,viewType:that.viewtypeConstant.TEXT},function(result){
            if(result.success){
                var width = ($(document).width()-400);
                var height = ($(document).height()-80);
                var contentStyle = 'max-width: ' + width + 'px;max-height:' + height +'px;width:' + width + "px;height:" + height + "px;";
                that.replaceIframe(id,'<pre class="layui-code" lay-skin="notepad" lay-encode="false" style="' + contentStyle + ';overflow: auto" name="vciFilePreviewContent">' + result.obj +'</pre>');
                if(first){
                    that.initRightPanle(id);
                }
            }else{
                $webUtil.showErrorMsg(result.msg);
            }
        },function(xhr,error){
            $webUtil.showErrorMsg("获取文件的内容出错，可能是文件预览服务没有启动");
        },that.backPath);
    };
    Home.prototype.showVedioAndAudio =function(id,previewFileKey,first){
        var that = this;
        //视频
        $webUtil.get(that.url.controller + that.url.showCommon,{filePreviewKey:previewFileKey,viewType:that.viewtypeConstant.AUDIO},function(result){
            if(result.success){
                var html = '<object id="player" classid="CLSID:6BF52A52-394A-11d3-B153-00C04F79FAA6" name="vciFilePreviewContent" style="' + that.config[id].contentStyle + ';">'+
                    '<param name="AutoStart" VALUE="-1">'+
                    '<param name="enabled" value="1">'+
                    '<param name="EnableContextMenu" VALUE="-1">'+
                    '<param name="url" VALUE="' + that.backPath + result.obj + '">'+
                    '<param name="volume" value="50">'+
                    '</object>';
                that.replaceIframe(id,html);
                if(first){
                    that.initRightPanle(id);
                }
            }else{
                $webUtil.showErrorMsg(result.msg);
            }
        },function(xhr,error){
            $webUtil.showErrorMsg("获取文件的路径出错，可能是文件预览服务没有启动");
        },that.backPath);
    };
    Home.prototype.showImages = function (id,previewFileKey,first) {
        var that = this;
        //图片
        $webUtil.get(that.url.controller +that.url.showCommon,{filePreviewKey:previewFileKey,viewType:that.viewtypeConstant.IMAGES},function(result){
            if(result.success){
                that.replaceIframe(id,'<img src="' + that.backPath + result.obj + '" style="max-width:' + ($(document).width()-360) + 'px;height:auto;" name="vciFilePreviewContent" />');
                if(first){
                    that.initRightPanle(id);
                }
            }else{
                $webUtil.showErrorMsg(result.msg);
            }
        },function(xhr,error){
            $webUtil.showErrorMsg("获取文件的路径出错，可能是文件预览服务没有启动");
        },that.backPath);
    };
    Home.prototype.showXps = function(id,previewFileKey,first){
        var that = this;
        $webUtil.get(that.url.controller +that.url.showXps,{xpsPreviewKey:previewFileKey},function(result){
            if(result.success){
                var iframeUrl = that.backPath + result.obj ;
                that.replaceIframe(id, '<iframe src="' + iframeUrl +  '" style="' + that.config[id].contentStyle + '" name="vciFilePreviewContent" frameborder="false" scrolling="auto" ></iframe>');
                if(first){
                    that.initRightPanle(id);
                }
            }else{
                $webUtil.showErrorMsg(result.msg);
            }
        },function(xhr,error){
            $webUtil.showErrorMsg("获取文件的路径出错，可能是文件预览服务没有启动");
        },that.backPath);
    };
    Home.prototype.showPdf = function(id,previewFileKey,first,viewtype){
        var that = this;
        $webUtil.get(that.url.controller +that.url.showPdf,{pdfPreviewKey:previewFileKey},function(result){
            if(result.success){
               //有adobe 和active的方式
                var iframeUrl = that.backPath + result.obj + "?AuthorizationToken=" + $webUtil.getToken() ;
                if(that.isIE()) {
                    if (that.viewtypeConstant.ACTIVE == viewtype) {
                        //要控制下载的时候，使用这个
                        that.replaceIframe(id, '<object id="csocx' + id + '" name="vciFilePreviewContent" style="' + that.config[id].contentStyle + '" classid="clsid:195CA93F-2C9A-4E46-A8B3-D28E8C790954">' +
                            '<param name="Url" value="' + iframeUrl + '"></param></object>');
                        document.getElementById("csocx" + id).Url = iframeUrl;
                    } else {
                        if (!that.checkAdobeReaderInstall()) {
                            that.replaceIframe(id, projectName + "jslib/layui-2.2.5-debug/lay/filepreview/help.html?viewtype=" + that.viewtype);
                        } else {
                            that.replaceIframe(id, '<div style="' + that.config[id].contentStyle + '" id="vciFilePreviewContent' + id + '" name="vciFilePreviewContent" ></div>');
                            var pdfObject = new PDFObject({
                                id: 'vciFilePreviewContent' + id,
                                url: iframeUrl,
                                pdfOpenParams: {
                                    scrollbars: '0',
                                    toolbar: '0',
                                    statusbar: '0'
                                }
                            }).embed('vciFilePreviewContent' + id);
                        }
                    }
                }else{
                    //可能是支持HTML5的浏览器，因此使用pdf.js进行展示
                    var url = projectName + 'jslib/layui-2.2.5-debug/lay/filepreview/web/viewer.html?file=' +iframeUrl ;
                    that.replaceIframe(id,'<iframe src="' + url + '" style="' + that.config[id].contentStyle + '" name="vciFilePreviewContent" frameborder="false" scrolling="auto" ></iframe>');
                }
                if (first) {
                    that.initRightPanle(id);
                }
            }else{
                $webUtil.showErrorMsg(result.msg);
            }
        },function(xhr,error){
            $webUtil.showErrorMsg("获取文件的路径出错，可能是文件预览服务没有启动");
        },that.backPath);
    };
    Home.prototype.checkAdobeReaderInstall =function(){
        var activeRender = false;
        //检查pdf是否安装
        for (var i = 2; i < 12; i++) {
            try {
                var activeAdobe = eval("new ActiveXObject('PDF.pdfCtrl." + x + "');");
                if (activeAdobe) {
                    activeRender = true;
                    break;
                }
            } catch (e) {

            }
        }
        if (!activeRender) {
            //看看acro4
            try {
                var activeAdobe4 = new ActiveXObject("PDF.PdfCtrl.1");
                activeRender = true;
            } catch (e) {

            }
        }
        if (!activeRender) {
            try {
                var activeAdobe7 = new ActiveXObject("AcroPDF.PDF.1");
                activeRender = true;
            } catch (e) {

            }
        }
        return activeRender;
    };
    Home.prototype.initRightPanle = function (id) {
        //初始化右侧的列表和帮助信息
        var that = this;
        var options = that.config[id];
        if(!options.hideRightPanel) {
            layui.element.tabAdd('panelFileInfo_' + id, {
                title: '本业务数据的所有附件',
                id: "tab_allFile_" + id,
                content: '<div id="allfile_' + id + '">' +
                    '<div layui-filter="toolbar_' + id + '" class="layui-btn-container"></div>' +
                    '<table id="allfile_table_' + id + '" lay-filter="allfile_table_' + id + '" style="overflow-y:auto;"></table>' +
                    '</div>'
            });
            that.initFileTable(id);
            layui.element.tabAdd('panelFileInfo_' + id, {
                title: '使用帮助信息',
                id: "tab_preViewHelp_" + id,
                content:that.getHelpContent(options.viewtype)
            });
            layui.element.tabChange('panelFileInfo_' + id, "tab_allFile_" + id);
            $('a[name="vcifilepreviewforlinkfile"]').die().live('click', function () {
                var thisFileNameCell = $(this);
                var linkFileOid = thisFileNameCell.attr("fileoid");
                that.clickNamePREVIEW(id, linkFileOid);
            });
        }
    };
    Home.prototype.getHelpContent = function (viewtype){
        var sUserAgent = navigator.userAgent;
        var that = this;
        var isActive = false;
        if("active" == viewtype){
            isActive = true;
        }
        var downloadUrl = isActive?"/download/VCIPdfViewer.exe":"/download/AdbeRdr920_zh_CN.exe";
        var installHelp = "/download/安装说明.doc";
        var systemInfo = "您的系统是windows:";
        if((navigator.platform == "Win32") || (navigator.platform == "Windows")){
            if(sUserAgent.indexOf("Windows NT 5.1") > -1 ||
                sUserAgent.indexOf("Windows XP") > -1){
                if(isActive) {
                    downloadUrl = "/download/vciFilePreview.zip";
                    installHelp = "/download/安装说明xp.doc";
                }
                systemInfo = "您的操作系统是windows xp:";
            }
            var html = systemInfo + "</br>";
            if(isActive){
                html += "<a href='javascript:void(0);' docurl='" + projectName + installHelp + "' id='downloadDoc'>点击这里下载【安装说明】</a></br>";
            }else{
                html += "默认提供9.2版本的Adobe Reader，可以自行安装其他版本的Adobe的pdf软件</br>";
            }
            html += "<a href='javascript:void(0);' docurl='" + projectName + downloadUrl + "' id='downloadInstall'>点击这里下载安装文件</a>";
        }else{
            html = ("<br/>您的操作系统不是windows，不需要安装,请使用谷歌浏览器、火狐浏览器或者safari浏览器");
        }
        $("#downloadDoc").unbind("click").click(function(){
            that.doDownload($(this).attr("docurl"));
        });
        $("#downloadInstall").unbind("click").click(function(){
            that.doDownload($(this).attr("docurl"));
        });
        return ['<div style="display:block;text-align: left;padding:20px;">',
            '<p style="color:blue;">1. 建议您使用谷歌浏览器，或者火狐等浏览器查看体验更佳</p>',
            '<hr className="layui-bg-red">',
            '<p style="color:blue;">2. 显示的内容中某些表格等可能会出现显示的格式错误的情况，但是不影响阅读。这种情况下的原文格式是正常的,建议此时直接下载文件</p>',
            '<hr className="layui-bg-red">',
            '<p style="color:blue;">3. 右侧列表中是当前预览文件所属的业务类型下的所有附件，可以直接单击名称就可以查看</p>',
            '<hr className="layui-bg-red">',
            '<p style="color:blue;">4. 需要安装文件预览的程序后才能查看内容，请在下方下载安装程序根据要求安装</p>',
            '<hr className="layui-bg-red">',
            '<p id="downloadP" style="color:red">' ,html ,'</p>',
            '<hr className="layui-bg-red">',
        '</div>'].join('');
    };
    Home.prototype.doDownload = function (url){
        var downIframe = $("<iframe>");
        downIframe.attr("style","display:none;");
        $("body").append(downIframe);
        downIframe.attr("src",url);
        if (downIframe.attachEvent) {
            downIframe.attachEvent("onload",
                function() {
                    downIframe.remove();
                });
        } else {
            downIframe.onload = function() {
                downIframe.remove();
            };
        }
    };
    Home.prototype.isIE = function () {
        var userAgent = navigator.userAgent; //取得浏览器的userAgent字符串
        //IE11不就算在里面，因为它本身支持H5的方式了
        return /msie/g.test(userAgent.toLowerCase());
    };
    Home.prototype.initFileTable = function(id) {
        var that = this;
        var table = layui.table;
        var columns = [{
            field:'name',
            title:'文件名称',
            width:300,
            templet:function (d) {
                var showName = $webUtil.isNull(d.id)?d.name:d.id;
                return '<a href="javascript:;" name="vcifilepreviewforlinkfile" style="color:#2080da;text-decoration:underline;" compId="' + id +'"  fileoid="'
                    + d.oid + '" >'
                    + showName + ($webUtil.isNull(d.fileExtension)?"":("." + d.fileExtension)) + '</a>';
            }
        }];
        var options = that.config[id];
        layui.table.render({
            elem:"#allfile_table_"+id,
            url:that.url.listLinkeFile,
            id:"allfile_table_"+id,
            backPath:configData.fileServicePath,
            where:{
                ownbizOid:options.ownbizOid,
                ownbizBtm:options.ownbizBtm
            },
            cols:[columns],
            height:450
        });
    };
    Home.prototype.clickNamePREVIEW = function(id,linkFileOid){
        var that = this;
        var extraParams={};
        extraParams['linkFileOid'] = linkFileOid;
        extraParams['viewType'] = that.config[id].viewType;
        $webUtil.showProgress("即将开始预览，请等待....");
        $webUtil.post(that.url.controller + that.url.ajaxPreview, extraParams, function (result) {
            $webUtil.closeProgress();
            if (result.success && result.obj) {
                that.doShow(id,result.obj,false);
            } else {
                $webUtil.showErrorMsg(result.msg);
            }
        },function(xhr,error){
            $webUtil.showErrorMsg("获取文件的许可出错,可能是文件预览服务未启动")
        });
    };
    var home = new Home();
    exports('FilePreviewBase',home);
});