<link rel="stylesheet" href="~/Lib/Kindeditor/themes/default/default.css" />
<link rel="stylesheet" href="~/Lib/Kindeditor/plugins/code/prettify.css" />
<script charset="utf-8" src="~/Lib/Kindeditor/kindeditor-all.js"></script>
<script charset="utf-8" src="~/Lib/Kindeditor/lang/zh-CN.js"></script>
<script charset="utf-8" src="~/Lib/Kindeditor/plugins/code/prettify.js"></script>

<textarea name="content" style="width:100%;height:450px;" id="MyEidtor">@Html.Raw(Model.Context)</textarea>

KindEditor.ready(function (K) {
        window.editor = K.create(''#MyEidtor'', {
            uploadJson: ''../../Editor/KindSaveFiles?Title=@Html.Raw(Model.Title)&ContextId=@Model.Id'',
            fileManagerJson: ''@Url.Action("KindFileManager", "Editor")'',
            allowFileManager: true,
            autoHeightMode : true,
                    afterCreate: function () {
                        var editerDoc = this.edit.doc;//得到编辑器的文档对象
                        //监听粘贴事件, 包括右键粘贴和ctrl+v
                        $(editerDoc).bind(''paste'', null, function (e) {
                            var ele = e.originalEvent.clipboardData.items;
                            for (var i = 0; i < ele.length; ++i) {
                                //判断文件类型
                                if (ele[i].kind == ''file'' && ele[i].type.indexOf(''image/'') !== -1) {
                                    var file = ele[i].getAsFile();//得到二进制数据
                                    //创建表单对象，建立name=value的表单数据。
                                    var formData = new FormData();
                                    formData.append("imgFile", file);//name,value

                                    //用jquery Ajax 上传二进制数据
                                    $.ajax({
                                        url: ''../../Editor/KindSaveFiles?dir=image&Title=@Html.Raw(Model.Title)&ContextId=@Model.Id'',
                                        type: ''POST'',
                                        data: formData,
                                        // 告诉jQuery不要去处理发送的数据
                                        processData: false,
                                        // 告诉jQuery不要去设置Content-Type请求头
                                        contentType: false,
                                        dataType: "json",
                                        beforeSend: function () {
                                            //console.log("正在进行，请稍候");
                                        },
                                        success: function (responseStr) {
                                            //上传完之后，生成图片标签回显图片，假定服务器返回url。
                                            var src = responseStr.url;
                                            var imgTag = "<img src=''" + src + "'' border=''0''/>";

                                            //console.info(imgTag);
                                            //kindeditor提供了一个在焦点位置插入HTML的函数，调用此函数即可。
                                            editor.insertHtml(imgTag);


                                        },
                                        error: function (responseStr) {
                                            console.log("error");
                                        }
                                    });

                                }

                            }
                        }
                        )
                    }

        });
     });

function btnSave() {
        alert(window.editor.html());//获取了数据，保存就没问题了吧！
    }

#region Kindeditor
        private string KindStr = "Kind";//前缀文件名，可自行修改
        public IActionResult Kindeditor()
        {
            Article article = new Article();
            article.Context = "这是编辑器测试数据！";
            article.Id = 1;
            article.Title = "测试";
            return View(article);
        }

        public async Task<IActionResult> KindSaveFiles(string dir, string Title, long ContextId = 0, long ArticleTypeId = 0)
        {
            if (Request.Form.Files.Count() == 0)
            {
                return showError("请选择上传的文件");
            }

            var file = Request.Form.Files[0];//kindeditor的上传文件控件，一次只传一个文件

            //定义允许上传的文件扩展名
            Hashtable extTable = new Hashtable();
            extTable.Add("image", "gif,jpg,jpeg,png,bmp");
            extTable.Add("flash", "swf,flv");
            extTable.Add("media", "swf,flv,mp3,wav,wma,wmv,mid,avi,mpg,asf,rm,rmvb,mp4");
            extTable.Add("file", "doc,docx,xls,xlsx,ppt,htm,html,txt,zip,rar,gz,bz2");

            if (String.IsNullOrEmpty(dir))
            {
                dir = "image";
            }
            string fName = "";
            string fileName = "";
            string md5 = CommonHelper.CalcMD5(file.OpenReadStream());
            String fileExt = Path.GetExtension(file.FileName).ToLower();

            if (String.IsNullOrEmpty(fileExt) || Array.IndexOf(((String)extTable[dir]).Split('',''), fileExt.Substring(1).ToLower()) == -1)
            {
                return showError("上传文件扩展名是不允许的扩展名。\n只允许" + ((String)extTable[dir]) + "格式。");
            }

            //创建文件夹
            string dirPath = ConfigHelper.GetSectionValue("FileMap:FilePath") + "\\"+ KindStr + "\\" + dir + "\\";
            string webPath = "/" + KindStr + "/" + dir + "/";
            if (!Directory.Exists(dirPath))
            {
                Directory.CreateDirectory(dirPath);
            }

            String ymd = DateTime.Now.ToString("yyyyMMdd", DateTimeFormatInfo.InvariantInfo);
            dirPath += ymd + "\\";
            webPath += ymd + "/";
            if (!Directory.Exists(dirPath))
            {
                Directory.CreateDirectory(dirPath);
            }

            string suijishu = Math.Abs(Guid.NewGuid().GetHashCode()).ToString();
            String newFileName = DateTime.Now.ToString("yyyyMMddHHmmss_" + suijishu, DateTimeFormatInfo.InvariantInfo) + fileExt;

            fileName = dirPath + $@"{newFileName}";
            using (FileStream fs = System.IO.File.Create(fileName))
            {
                await file.CopyToAsync(fs);
                fs.Flush();
            }
            fName = ConfigHelper.GetSectionValue("FileMap:FileWeb") + webPath + newFileName;

            Hashtable hash = new Hashtable();
            hash["error"] = 0;
            hash["url"] = fName;
            return Json(hash);
        }

        [NonAction]
        private IActionResult showError(string message)
        {
            Hashtable hash = new Hashtable();
            hash["error"] = 1;
            hash["message"] = message;
            return Json(hash);
        }


        public IActionResult KindFileManager()
        {
            String rootUrl = "/"+ KindStr + "/";

            //图片扩展名
            String fileTypes = "gif,jpg,jpeg,png,bmp";

            String currentPath = "";
            String currentUrl = "";
            String currentDirPath = "";
            String moveupDirPath = "";

            String dirPath = ConfigHelper.GetSectionValue("FileMap:FilePath") + "\\Kind" + "\\";
            String dirName = Request.Query["dir"];
            if (!String.IsNullOrEmpty(dirName))
            {
                if (Array.IndexOf("image,flash,media,file".Split('',''), dirName) == -1)
                {
                    return showError("目录错误");
                }
                dirPath += dirName + "/";
                rootUrl += dirName + "/";
                if (!Directory.Exists(dirPath))
                {
                    Directory.CreateDirectory(dirPath);
                }
            }

            //根据path参数，设置各路径和URL
            String path = Request.Query["path"];
            path = String.IsNullOrEmpty(path) ? "" : path;
            if (path == "")
            {
                currentPath = dirPath;
                currentUrl = rootUrl;
                currentDirPath = "";
                moveupDirPath = "";
            }
            else
            {
                currentPath = dirPath + path;
                currentUrl = rootUrl + path;
                currentDirPath = path;
                moveupDirPath = Regex.Replace(currentDirPath, @"(.*?)[^\/]+\/$", "$1");
            }

            //排序形式，name or size or type
            String order = Request.Query["order"];
            order = String.IsNullOrEmpty(order) ? "" : order.ToLower();

            //不允许使用..移动到上一级目录
            if (Regex.IsMatch(path, @"\.\."))
            {
                return showError("Access is not allowed.");
            }
            //最后一个字符不是/
            if (path != "" && !path.EndsWith("/"))
            {
                return showError("Parameter is not valid.");
            }
            //目录不存在或不是目录
            if (!Directory.Exists(currentPath))
            {
                return showError("Directory does not exist.");
            }

            //遍历目录取得文件信息
            string[] dirList = Directory.GetDirectories(currentPath);
            string[] fileList = Directory.GetFiles(currentPath);

            switch (order)
            {
                case "size":
                    Array.Sort(dirList, new NameSorter());
                    Array.Sort(fileList, new SizeSorter());
                    break;
                case "type":
                    Array.Sort(dirList, new NameSorter());
                    Array.Sort(fileList, new TypeSorter());
                    break;
                case "name":
                default:
                    Array.Sort(dirList, new NameSorter());
                    Array.Sort(fileList, new NameSorter());
                    break;
            }

            Hashtable result = new Hashtable();
            result["moveup_dir_path"] = moveupDirPath;
            result["current_dir_path"] = currentDirPath;
            result["current_url"] = currentUrl;
            result["total_count"] = dirList.Length + fileList.Length;
            List<Hashtable> dirFileList = new List<Hashtable>();
            result["file_list"] = dirFileList;
            for (int i = 0; i < dirList.Length; i++)
            {
                DirectoryInfo dir = new DirectoryInfo(dirList[i]);
                Hashtable hash = new Hashtable();
                hash["is_dir"] = true;
                hash["has_file"] = (dir.GetFileSystemInfos().Length > 0);
                hash["filesize"] = 0;
                hash["is_photo"] = false;
                hash["filetype"] = "";
                hash["filename"] = dir.Name;
                hash["datetime"] = dir.LastWriteTime.ToString("yyyy-MM-dd HH:mm:ss");
                dirFileList.Add(hash);
            }
            for (int i = 0; i < fileList.Length; i++)
            {
                FileInfo file = new FileInfo(fileList[i]);
                Hashtable hash = new Hashtable();
                hash["is_dir"] = false;
                hash["has_file"] = false;
                hash["filesize"] = file.Length;
                hash["is_photo"] = (Array.IndexOf(fileTypes.Split('',''), file.Extension.Substring(1).ToLower()) >= 0);
                hash["filetype"] = file.Extension.Substring(1);
                hash["filename"] = file.Name;
                hash["datetime"] = file.LastWriteTime.ToString("yyyy-MM-dd HH:mm:ss");
                dirFileList.Add(hash);
            }
            return Json(result);
        }


        public class NameSorter : IComparer
        {
            public int Compare(object x, object y)
            {
                if (x == null && y == null)
                {
                    return 0;
                }
                if (x == null)
                {
                    return -1;
                }
                if (y == null)
                {
                    return 1;
                }
                FileInfo xInfo = new FileInfo(x.ToString());
                FileInfo yInfo = new FileInfo(y.ToString());

                return xInfo.FullName.CompareTo(yInfo.FullName);
            }
        }

        public class SizeSorter : IComparer
        {
            public int Compare(object x, object y)
            {
                if (x == null && y == null)
                {
                    return 0;
                }
                if (x == null)
                {
                    return -1;
                }
                if (y == null)
                {
                    return 1;
                }
                FileInfo xInfo = new FileInfo(x.ToString());
                FileInfo yInfo = new FileInfo(y.ToString());

                return xInfo.Length.CompareTo(yInfo.Length);
            }
        }

        public class TypeSorter : IComparer
        {
            public int Compare(object x, object y)
            {
                if (x == null && y == null)
                {
                    return 0;
                }
                if (x == null)
                {
                    return -1;
                }
                if (y == null)
                {
                    return 1;
                }
                FileInfo xInfo = new FileInfo(x.ToString());
                FileInfo yInfo = new FileInfo(y.ToString());

                return xInfo.Extension.CompareTo(yInfo.Extension);
            }
        }
        #endregion