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                                                                                                                                                                                                      \n                                                                                                                                                                                                       \n                                                                                                                                                                                                       \n                                                                                                                                                                                                       \n                                                                                                                                                                                                      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             \n                                                                                                                                                                                                       \n\n*/\n(function (f, define) {\n    define('kendo.upload', ['kendo.core'], f);\n}(function () {\n    var __meta__ = {\n        id: 'upload',\n        name: 'Upload',\n        category: 'web',\n        description: 'The Upload widget uses progressive enhancement to deliver the best possible uploading experience to users.',\n        depends: ['core']\n    };\n    (function ($, undefined) {\n        var kendo = window.kendo, Widget = kendo.ui.Widget, antiForgeryTokens = kendo.antiForgeryTokens, logToConsole = kendo.logToConsole, rFileExtension = /\\.([^\\.]+)$/, NS = '.kendoUpload', SELECT = 'select', UPLOAD = 'upload', SUCCESS = 'success', ERROR = 'error', COMPLETE = 'complete', CANCEL = 'cancel', CLEAR = 'clear', PAUSE = 'pause', RESUME = 'resume', PROGRESS = 'progress', REMOVE = 'remove', VALIDATIONERRORS = 'validationErrors', INVALIDMAXFILESIZE = 'invalidMaxFileSize', INVALIDMINFILESIZE = 'invalidMinFileSize', INVALIDFILEEXTENSION = 'invalidFileExtension', PROGRESSHIDEDELAY = 1000, PROGRESSHIDEDURATION = 2000;\n        var headerStatusIcon = {\n            loading: 'k-i-loading',\n            warning: 'k-i-warning',\n            success: 'k-i-check'\n        };\n        var Upload = Widget.extend({\n            init: function (element, options) {\n                var that = this;\n                Widget.fn.init.call(that, element, options);\n                that.name = element.name;\n                that.multiple = that.options.multiple;\n                that.directory = that.options.directory;\n                that.localization = that.options.localization;\n                var activeInput = that.element;\n                that.wrapper = activeInput.closest('.k-upload');\n                if (that.wrapper.length === 0) {\n                    that.wrapper = that._wrapInput(activeInput);\n                }\n                that._activeInput(activeInput);\n                that.toggle(that.options.enabled);\n                var ns = that._ns = NS + '-' + kendo.guid();\n                activeInput.closest('form').on('submit' + ns, $.proxy(that._onParentFormSubmit, that)).on('reset' + ns, $.proxy(that._onParentFormReset, that));\n                if (that.options.async.saveUrl) {\n                    that._module = that._supportsFormData() ? new formDataUploadModule(that) : new iframeUploadModule(that);\n                    that._async = true;\n                    var initialFiles = that.options.files;\n                    if (initialFiles.length > 0) {\n                        that._renderInitialFiles(initialFiles);\n                    }\n                } else {\n                    that._module = new syncUploadModule(that);\n                }\n                if (that._supportsDrop()) {\n                    if (that.options.dropZone !== '') {\n                        that._setupCustomDropZone();\n                    } else {\n                        that._setupDropZone();\n                    }\n                }\n                that.wrapper.on('click', '.k-upload-action', $.proxy(that._onFileAction, that)).on('click', '.k-clear-selected', $.proxy(that._onClearSelected, that)).on('click', '.k-upload-selected', $.proxy(that._onUploadSelected, that));\n                if (that.element.val()) {\n                    that._onInputChange({ target: that.element });\n                }\n            },\n            events: [\n                SELECT,\n                UPLOAD,\n                SUCCESS,\n                ERROR,\n                COMPLETE,\n                CANCEL,\n                CLEAR,\n                PROGRESS,\n                REMOVE,\n                PAUSE,\n                RESUME\n            ],\n            options: {\n                name: 'Upload',\n                enabled: true,\n                multiple: true,\n                directory: false,\n                showFileList: true,\n                template: '',\n                files: [],\n                async: {\n                    autoRetryAfter: 0,\n                    bufferChunkSize: 10000000,\n                    maxAutoRetries: 1,\n                    removeVerb: 'POST',\n                    autoUpload: true,\n                    withCredentials: true,\n                    accept: '*/*; q=0.5, application/json',\n                    useArrayBuffer: false\n                },\n                localization: {\n                    'select': 'Select files...',\n                    'cancel': 'Cancel',\n                    'retry': 'Retry',\n                    'remove': 'Remove',\n                    'pause': 'Pause',\n                    'resume': 'Resume',\n                    'clearSelectedFiles': 'Clear',\n                    'uploadSelectedFiles': 'Upload',\n                    'dropFilesHere': 'Drop files here to upload',\n                    'invalidFiles': 'Invalid file(s). Please check file upload requirements.',\n                    'statusUploading': 'uploading',\n                    'statusUploaded': 'uploaded',\n                    'statusWarning': 'warning',\n                    'statusFailed': 'failed',\n                    'headerStatusUploading': 'Uploading...',\n                    'headerStatusPaused': 'Paused',\n                    'headerStatusUploaded': 'Done',\n                    'invalidMaxFileSize': 'File size too large.',\n                    'invalidMinFileSize': 'File size too small.',\n                    'invalidFileExtension': 'File type not allowed.'\n                },\n                validation: {\n                    allowedExtensions: [],\n                    maxFileSize: 0,\n                    minFileSize: 0\n                },\n                dropZone: ''\n            },\n            setOptions: function (options) {\n                var that = this, activeInput = that.element;\n                Widget.fn.setOptions.call(that, options);\n                that.multiple = that.options.multiple;\n                that.directory = that.options.directory;\n                activeInput.attr('multiple', that._supportsMultiple() ? that.multiple : false);\n                if (that.directory) {\n                    activeInput.attr('webkitdirectory', that.directory);\n                    activeInput.attr('directory', that.directory);\n                }\n                that.toggle(that.options.enabled);\n            },\n            enable: function (enable) {\n                enable = typeof enable === 'undefined' ? true : enable;\n                this.toggle(enable);\n            },\n            disable: function () {\n                this.toggle(false);\n            },\n            toggle: function (enable) {\n                enable = typeof enable === 'undefined' ? enable : !enable;\n                this.wrapper.toggleClass('k-state-disabled', enable);\n                this.element.prop('disabled', enable);\n            },\n            focus: function () {\n                this.element.focus();\n            },\n            destroy: function () {\n                var that = this;\n                var customDropZone = $(that.options.dropZone);\n                $(document).add($('.k-dropzone', that.wrapper)).add(that.wrapper.closest('form')).off(that._ns);\n                if (customDropZone.length > 0) {\n                    customDropZone.off(that._ns);\n                }\n                $(that.element).off(NS);\n                Widget.fn.destroy.call(that);\n            },\n            pause: function (fileEntry) {\n                this._module.onPause({ target: $(fileEntry, this.wrapper) });\n                var pauseIcon = fileEntry.find('.k-i-pause-sm');\n                pauseIcon.removeClass('k-i-pause-sm').addClass('k-i-play-sm').attr('title', this.localization.resume);\n                $(pauseIcon).parent().attr('aria-label', this.localization.resume);\n            },\n            resume: function (fileEntry) {\n                this._module.onResume({ target: $(fileEntry, this.wrapper) });\n                var playIcon = fileEntry.find('.k-i-play-sm');\n                playIcon.removeClass('k-i-play-sm').addClass('k-i-pause-sm').attr('title', this.localization.pause);\n                $(playIcon).parent().attr('aria-label', this.localization.pause);\n            },\n            upload: function () {\n                var that = this;\n                that._module.onSaveSelected();\n            },\n            getFiles: function () {\n                var that = this;\n                var filesData;\n                var allFiles = [];\n                var listItems = that.wrapper.find('.k-file');\n                for (var i = 0; i < listItems.length; i++) {\n                    filesData = $(listItems[i]).data('fileNames');\n                    if (filesData) {\n                        for (var j = 0; j < filesData.length; j++) {\n                            allFiles.push(filesData[j]);\n                        }\n                    }\n                }\n                return allFiles;\n            },\n            clearAllFiles: function () {\n                var that = this;\n                var files = that.wrapper.find('.k-file');\n                files.each(function (index, file) {\n                    that._removeFileByDomElement(file, false);\n                });\n            },\n            removeAllFiles: function () {\n                var that = this;\n                var files = that.wrapper.find('.k-file');\n                files.each(function (index, file) {\n                    that._removeFileByDomElement(file, true);\n                });\n            },\n            removeFileByUid: function (uid) {\n                this._removeFileByUid(uid, true);\n            },\n            clearFileByUid: function (uid) {\n                this._removeFileByUid(uid, false);\n            },\n            _removeFileByUid: function (uid, shouldSendRemoveRequest) {\n                var that = this;\n                var fileEntry;\n                if (typeof uid !== 'string') {\n                    return;\n                }\n                fileEntry = $('.k-file[' + kendo.attr('uid') + '=\"' + uid + '\"]', that.wrapper);\n                if (fileEntry.length > 0) {\n                    that._removeFileByDomElement(fileEntry, shouldSendRemoveRequest);\n                }\n            },\n            clearFile: function (callback) {\n                this._removeFile(callback, false);\n            },\n            removeFile: function (callback) {\n                this._removeFile(callback, true);\n            },\n            _removeFile: function (callback, shouldSendRemoveRequest) {\n                var that = this;\n                var files = that.wrapper.find('.k-file');\n                var fileData;\n                if (typeof callback === 'function') {\n                    files.each(function (index, file) {\n                        fileData = $(file).data('fileNames');\n                        if (callback(fileData)) {\n                            that._removeFileByDomElement(file, shouldSendRemoveRequest);\n                        }\n                    });\n                }\n            },\n            _removeFileByDomElement: function (fileEntry, shouldSendRemoveRequest) {\n                var that = this;\n                var fileData = { target: $(fileEntry, that.wrapper) };\n                var allFiles;\n                if (that.options.async.saveUrl) {\n                    if ($(fileEntry).hasClass('k-file-progress')) {\n                        that._module.onCancel(fileData);\n                    } else {\n                        that._module.onRemove(fileData, {}, shouldSendRemoveRequest);\n                    }\n                    allFiles = $('.k-file', that.wrapper);\n                    if (allFiles.length === 0) {\n                        that._hideHeaderUploadstatus();\n                    } else {\n                        that._updateHeaderUploadStatus();\n                    }\n                } else {\n                    that._module.onRemove(fileData, {}, shouldSendRemoveRequest);\n                }\n            },\n            _addInput: function (sourceInput) {\n                if (!sourceInput[0].nodeType) {\n                    return;\n                }\n                var that = this, input = sourceInput.clone().val('');\n                input.insertAfter(that.element).data('kendoUpload', that);\n                $(that.element).hide().attr('tabindex', '-1').removeAttr('id').off(NS);\n                that._activeInput(input);\n                that.element.focus();\n            },\n            _activeInput: function (input) {\n                var that = this, wrapper = that.wrapper;\n                that.element = input;\n                if (that.directory) {\n                    input.attr('webkitdirectory', that.directory);\n                    input.attr('directory', that.directory);\n                }\n                input.attr('multiple', that._supportsMultiple() ? that.multiple : false).attr('autocomplete', 'off').on('click' + NS, function (e) {\n                    if (wrapper.hasClass('k-state-disabled')) {\n                        e.preventDefault();\n                    }\n                }).on('focus' + NS, function () {\n                    $(this).parent().addClass('k-state-focused');\n                }).on('blur' + NS, function () {\n                    $(this).parent().removeClass('k-state-focused');\n                }).on('change' + NS, $.proxy(that._onInputChange, that)).on('keydown' + NS, $.proxy(that._onInputKeyDown, that));\n            },\n            _onInputKeyDown: function (e) {\n                var that = this;\n                var firstButton = that.wrapper.find('.k-upload-action:visible:first');\n                if (e.keyCode === kendo.keys.TAB && firstButton.length > 0) {\n                    e.preventDefault();\n                    firstButton.focus();\n                }\n            },\n            _onInputChange: function (e) {\n                var that = this;\n                var input = $(e.target);\n                var files = assignGuidToFiles(that._inputFiles(input), that._isAsyncNonBatch());\n                validateFiles(files, that.options.validation);\n                var prevented = that.trigger(SELECT, { files: files });\n                if (prevented) {\n                    that._addInput(input);\n                    input.remove();\n                } else {\n                    that._module.onSelect({ target: input }, files);\n                }\n            },\n            _readDirectory: function (item) {\n                var deferred = new $.Deferred();\n                var dirReader = item.createReader();\n                dirReader.readEntries(function (entries) {\n                    deferred.resolve(entries);\n                }, deferred.reject);\n                return deferred.promise();\n            },\n            _readFile: function (item) {\n                var that = this;\n                var fullpath = item.fullPath;\n                item.file(function (file) {\n                    file.relativePath = fullpath.slice(1);\n                    that.droppedFolderFiles.push(file);\n                    that.droppedFolderCounter--;\n                    if (that.droppedFolderCounter === 0) {\n                        setTimeout(function () {\n                            if (that.droppedFolderCounter === 0) {\n                                if (that.droppedFolderFiles.length) {\n                                    that._proceedDroppedItems(that.droppedFolderFiles);\n                                    that.droppedFolderFiles = [];\n                                }\n                            }\n                        }, 0);\n                    }\n                }, function () {\n                    logToConsole('File error.');\n                });\n            },\n            _traverseFileTree: function (item, skipCounter) {\n                var that = this;\n                if (!skipCounter) {\n                    that.droppedFolderCounter--;\n                }\n                this._readDirectory(item).then(function (items) {\n                    that.droppedFolderCounter += items.length;\n                    for (var i = 0; i < items.length; i++) {\n                        if (items[i].isFile) {\n                            that._readFile(items[i]);\n                        } else if (items[i].isDirectory) {\n                            that._traverseFileTree(items[i]);\n                        }\n                    }\n                });\n            },\n            _onDrop: function (e) {\n                var dt = e.originalEvent.dataTransfer;\n                var that = this;\n                var droppedFiles = dt.files;\n                var length;\n                stopEvent(e);\n                if (that.options.directoryDrop && dt.items) {\n                    length = dt.items.length;\n                    that.droppedFolderCounter = 0;\n                    that.droppedFolderFiles = [];\n                    for (var i = 0; i < length; i++) {\n                        if (dt.items[i].webkitGetAsEntry) {\n                            var entry = dt.items[i].webkitGetAsEntry();\n                            if (entry.isDirectory) {\n                                that._traverseFileTree(entry, true);\n                            } else if (entry.isFile) {\n                                that.droppedFolderFiles.push(dt.files[i]);\n                            }\n                        } else {\n                            that._proceedDroppedItems(droppedFiles);\n                        }\n                    }\n                } else {\n                    that._proceedDroppedItems(droppedFiles);\n                }\n            },\n            _proceedDroppedItems: function (droppedFiles) {\n                var that = this;\n                var files = assignGuidToFiles(getAllFileInfo(droppedFiles), that._isAsyncNonBatch());\n                if (droppedFiles.length > 0 && !that.wrapper.hasClass('k-state-disabled')) {\n                    if (!that.multiple && files.length > 1) {\n                        files.splice(1, files.length - 1);\n                    }\n                    validateFiles(files, that.options.validation);\n                    var prevented = that.trigger(SELECT, { files: files });\n                    if (!prevented) {\n                        that._module.onSelect({ target: $('.k-dropzone', that.wrapper) }, files);\n                    }\n                }\n            },\n            _filesContainValidationErrors: function (files) {\n                var hasErrors = false;\n                $(files).each(function (index, file) {\n                    if (file[VALIDATIONERRORS] && file[VALIDATIONERRORS].length > 0) {\n                        hasErrors = true;\n                        return false;\n                    }\n                });\n                return hasErrors;\n            },\n            _isAsyncNonBatch: function () {\n                return this._async && !this.options.async.batch || false;\n            },\n            _renderInitialFiles: function (files) {\n                var that = this;\n                var idx = 0;\n                files = assignGuidToFiles(files, true);\n                for (idx = 0; idx < files.length; idx++) {\n                    var currentFile = files[idx];\n                    var fileEntry = that._enqueueFile(currentFile.name, { fileNames: [currentFile] });\n                    fileEntry.addClass('k-file-success').data('files', [files[idx]]);\n                    if (that._supportsRemove()) {\n                        that._fileAction(fileEntry, REMOVE);\n                    }\n                }\n            },\n            _prepareTemplateData: function (name, data) {\n                var filesData = data.fileNames, templateData = {}, totalSize = 0, idx = 0;\n                for (idx = 0; idx < filesData.length; idx++) {\n                    totalSize += filesData[idx].size;\n                }\n                templateData.name = name;\n                templateData.size = totalSize;\n                templateData.files = data.fileNames;\n                return templateData;\n            },\n            _prepareDefaultSingleFileEntryTemplate: function (data) {\n                var that = this;\n                var file = data.fileNames[0];\n                var fileSize = getTotalFilesSizeMessage(data.fileNames);\n                var errors = file[VALIDATIONERRORS];\n                var template = '';\n                if (errors && errors.length > 0) {\n                    template += '<li class=\\'k-file k-file-invalid\\'><span class=\\'k-progress\\'></span>' + '<span class=\\'k-file-invalid-extension-wrapper\\'>' + '<span class=\\'k-file-invalid-icon\\'>!</span>' + '<span class=\\'k-file-state\\'></span>' + '</span>' + '<span class=\\'k-file-name-size-wrapper\\'>' + '<span class=\\'k-file-name k-file-name-invalid\\' title=\\'' + file.name + '\\'>' + file.name + '</span>' + '<span class=\\'k-file-validation-message\\'>' + that.localization[errors[0]] + '</span>' + '</span>';\n                } else {\n                    template += '<li class=\\'k-file\\'><span class=\\'k-progress\\'></span>' + '<span class=\\'k-file-extension-wrapper\\'>' + '<span class=\\'k-file-extension\\'>' + file.extension.substring(1) + '</span>' + '<span class=\\'k-file-state\\'></span>' + '</span>' + '<span class=\\'k-file-name-size-wrapper\\'><span class=\\'k-file-name\\' title=\\'' + file.name + '\\'>' + file.name + '</span>' + '<span class=\\'k-file-size\\'>' + fileSize + '</span></span>';\n                }\n                template += '<strong class=\\'k-upload-status\\'></strong>';\n                return $(template);\n            },\n            _prepareDefaultMultipleFileEntriesTemplate: function (data) {\n                var that = this;\n                var files = data.fileNames;\n                var filesHaveValidationErrors = that._filesContainValidationErrors(files);\n                var totalFileSize = getTotalFilesSizeMessage(files);\n                var template = '';\n                var i, currentFile;\n                if (filesHaveValidationErrors) {\n                    template += '<li class=\\'k-file k-file-invalid\\'><span class=\\'k-progress\\'></span>' + '<span class=\\'k-multiple-files-invalid-extension-wrapper\\'>' + '<span class=\\'k-file-invalid-icon\\'>!</span>';\n                } else {\n                    template += '<li class=\\'k-file\\'><span class=\\'k-progress\\'></span>' + '<span class=\\'k-multiple-files-extension-wrapper\\'>';\n                }\n                template += '<span class=\\'k-file-state\\'></span></span>';\n                files.sort(function (a, b) {\n                    if (a[VALIDATIONERRORS]) {\n                        return -1;\n                    }\n                    if (b[VALIDATIONERRORS]) {\n                        return 1;\n                    }\n                    return 0;\n                });\n                template += '<span class=\\'k-file-name-size-wrapper\\'>';\n                for (i = 0; i < files.length; i++) {\n                    currentFile = files[i];\n                    if (currentFile[VALIDATIONERRORS] && currentFile[VALIDATIONERRORS].length > 0) {\n                        template += '<span class=\\'k-file-name k-file-name-invalid\\' title=\\'' + currentFile.name + '\\'>' + currentFile.name + '</span>';\n                    } else {\n                        template += '<span class=\\'k-file-name\\' title=\\'' + currentFile.name + '\\'>' + currentFile.name + '</span>';\n                    }\n                }\n                if (filesHaveValidationErrors) {\n                    template += '<span class=\\'k-file-validation-message\\'>' + that.localization.invalidFiles + '</span>';\n                } else {\n                    template += '<span class=\\'k-file-information\\'>Total: ' + files.length + ' files, ' + totalFileSize + '</span>';\n                }\n                template += '</span><strong class=\\'k-upload-status\\'></strong>';\n                return $(template);\n            },\n            _enqueueFile: function (name, data) {\n                var that = this;\n                var existingFileEntries;\n                var fileEntry;\n                var fileUid = data.fileNames[0].uid;\n                var fileList = $('.k-upload-files', that.wrapper);\n                var options = that.options;\n                var template = options.template;\n                var templateData;\n                var removeEventArgs;\n                if (fileList.length === 0) {\n                    fileList = $('<ul class=\\'k-upload-files k-reset\\'></ul>').appendTo(that.wrapper);\n                    if (!that.options.showFileList) {\n                        fileList.hide();\n                    }\n                    that.wrapper.removeClass('k-upload-empty');\n                }\n                existingFileEntries = $('.k-file', fileList);\n                if (!template) {\n                    if (data.fileNames.length === 1) {\n                        fileEntry = that._prepareDefaultSingleFileEntryTemplate(data);\n                    } else {\n                        fileEntry = that._prepareDefaultMultipleFileEntriesTemplate(data);\n                    }\n                } else {\n                    templateData = that._prepareTemplateData(name, data);\n                    template = kendo.template(template);\n                    fileEntry = $('<li class=\\'k-file\\'>' + template(templateData) + '</li>');\n                    fileEntry.find('.k-upload-action').addClass('k-button');\n                    that.angular('compile', function () {\n                        return {\n                            elements: fileEntry,\n                            data: [templateData]\n                        };\n                    });\n                }\n                fileEntry.attr(kendo.attr('uid'), fileUid).appendTo(fileList).data(data);\n                if (!that._async) {\n                    $('.k-progress', fileEntry).width('100%');\n                }\n                if (!that.multiple && existingFileEntries.length > 0) {\n                    removeEventArgs = {\n                        files: existingFileEntries.data('fileNames'),\n                        headers: {}\n                    };\n                    if (!that.trigger(REMOVE, removeEventArgs)) {\n                        that._module.onRemove({ target: $(existingFileEntries, that.wrapper) }, removeEventArgs);\n                    }\n                }\n                return fileEntry;\n            },\n            _removeFileEntry: function (fileEntry) {\n                var that = this;\n                var fileList = fileEntry.closest('.k-upload-files');\n                var allFiles, allCompletedFiles, allInvalidFiles;\n                fileEntry.remove();\n                allFiles = $('.k-file', fileList);\n                allCompletedFiles = $('.k-file-success, .k-file-error', fileList);\n                allInvalidFiles = $('.k-file-invalid', fileList);\n                if (allCompletedFiles.length === allFiles.length || allInvalidFiles.length === allFiles.length) {\n                    this._hideUploadButton();\n                }\n                if (allFiles.length === 0) {\n                    fileList.remove();\n                    that.wrapper.addClass('k-upload-empty');\n                    that._hideHeaderUploadstatus();\n                } else {\n                    that._updateHeaderUploadStatus();\n                }\n            },\n            _fileAction: function (fileElement, actionKey, skipClear) {\n                var classDictionary = {\n                    remove: 'k-i-x',\n                    cancel: 'k-i-cancel',\n                    retry: 'k-i-retry',\n                    pause: 'k-i-pause-sm'\n                };\n                var iconsClassDictionary = {\n                    remove: 'k-i-close',\n                    cancel: 'k-i-close',\n                    retry: 'k-i-reload-sm',\n                    pause: 'k-i-pause-sm'\n                };\n                if (!classDictionary.hasOwnProperty(actionKey)) {\n                    return;\n                }\n                if (!skipClear) {\n                    this._clearFileAction(fileElement);\n                }\n                if (!this.options.template) {\n                    if (!skipClear) {\n                        fileElement.find('.k-upload-status .k-upload-action').remove();\n                    }\n                    fileElement.find('.k-upload-status').append(this._renderAction(classDictionary[actionKey], this.localization[actionKey], iconsClassDictionary[actionKey]));\n                } else {\n                    fileElement.find('.k-upload-action').addClass('k-button').append('<span class=\\'k-icon ' + iconsClassDictionary[actionKey] + ' ' + classDictionary[actionKey] + '\\' title=\\'' + this.localization[actionKey] + '\\'' + 'aria-label=\\'' + this.localization[actionKey] + '\\'></span>').show();\n                }\n            },\n            _fileState: function (fileEntry, stateKey) {\n                var localization = this.localization, states = {\n                        uploading: { text: localization.statusUploading },\n                        uploaded: { text: localization.statusUploaded },\n                        failed: { text: localization.statusFailed }\n                    }, currentState = states[stateKey];\n                if (currentState) {\n                    $('span.k-file-state', fileEntry).text(currentState.text);\n                }\n            },\n            _renderAction: function (actionClass, actionText, iconClass) {\n                if (actionClass !== '') {\n                    return $('<button type=\\'button\\' class=\\'k-button k-upload-action\\' aria-label=\\'' + actionText + '\\'>' + '<span class=\\'k-icon ' + iconClass + ' ' + actionClass + '\\' title=\\'' + actionText + '\\'></span>' + '</button>').on('focus', function () {\n                        $(this).addClass('k-state-focused');\n                    }).on('blur', function () {\n                        $(this).removeClass('k-state-focused');\n                    });\n                } else {\n                    return $('<button type=\\'button\\' class=\\'k-button\\'>' + actionText + '</button>');\n                }\n            },\n            _clearFileAction: function (fileElement) {\n                $('.k-upload-action', fileElement).empty().hide();\n            },\n            _onFileAction: function (e) {\n                var that = this;\n                if (!that.wrapper.hasClass('k-state-disabled')) {\n                    var button = $(e.target).closest('.k-upload-action');\n                    var icon = button.find('.k-icon');\n                    var fileEntry = button.closest('.k-file');\n                    var files = fileEntry.data('fileNames');\n                    var hasValidationErrors = that._filesContainValidationErrors(files);\n                    var eventArgs = {\n                        files: files,\n                        headers: {}\n                    };\n                    if (icon.hasClass('k-i-x')) {\n                        if (!that.trigger(REMOVE, eventArgs)) {\n                            that._module.onRemove({ target: $(fileEntry, that.wrapper) }, eventArgs, !hasValidationErrors);\n                        }\n                    } else if (icon.hasClass('k-i-cancel')) {\n                        that.trigger(CANCEL, eventArgs);\n                        that._module.onCancel({ target: $(fileEntry, that.wrapper) });\n                        that._checkAllComplete();\n                        that._updateHeaderUploadStatus();\n                    } else if (icon.hasClass('k-i-pause-sm')) {\n                        that.trigger(PAUSE, eventArgs);\n                        that.pause(fileEntry);\n                        that._updateHeaderUploadStatus();\n                    } else if (icon.hasClass('k-i-play-sm')) {\n                        that.trigger(RESUME, eventArgs);\n                        that.resume(fileEntry);\n                    } else if (icon.hasClass('k-i-retry')) {\n                        $('.k-i-warning', fileEntry).remove();\n                        $('.k-progress', fileEntry).finish().show();\n                        that._module.onRetry({ target: $(fileEntry, that.wrapper) });\n                    }\n                }\n                return false;\n            },\n            _onUploadSelected: function () {\n                var that = this;\n                var wrapper = that.wrapper;\n                if (!wrapper.hasClass('k-state-disabled')) {\n                    this._module.onSaveSelected();\n                }\n                return false;\n            },\n            _onClearSelected: function () {\n                var that = this;\n                var wrapper = that.wrapper;\n                var clearEventArgs = {};\n                if (!wrapper.hasClass('k-state-disabled') && !that.trigger(CLEAR, clearEventArgs)) {\n                    that.clearAllFiles();\n                }\n                return false;\n            },\n            _onFileProgress: function (e, percentComplete) {\n                var progressPct;\n                var warningPct;\n                if (percentComplete > 100) {\n                    percentComplete = 100;\n                }\n                if (!this.options.template) {\n                    progressPct = $('.k-upload-pct', e.target);\n                    warningPct = $('.k-i-warning', e.target);\n                    if (warningPct.length) {\n                        warningPct.removeClass('k-i-warning').removeClass('k-icon').addClass('k-upload-pct');\n                    } else if (progressPct.length === 0) {\n                        $('.k-upload-status', e.target).prepend('<span class=\\'k-upload-pct\\'></span>');\n                    }\n                    if (percentComplete !== 100) {\n                        $('.k-upload-pct', e.target).text(percentComplete + '%');\n                    } else {\n                        $('.k-upload-pct', e.target).remove();\n                    }\n                    $('.k-progress', e.target).width(percentComplete + '%');\n                } else {\n                    $('.k-progress', e.target).width(percentComplete + '%');\n                }\n                this.trigger(PROGRESS, {\n                    files: getFileEntry(e).data('fileNames'),\n                    percentComplete: percentComplete\n                });\n            },\n            _onUploadSuccess: function (e, response, xhr) {\n                var that = this;\n                var fileEntry = getFileEntry(e);\n                var prevented = that.trigger(SUCCESS, {\n                    files: fileEntry.data('fileNames'),\n                    response: response,\n                    operation: 'upload',\n                    XMLHttpRequest: xhr\n                });\n                if (prevented) {\n                    that._setUploadErrorState(fileEntry);\n                } else {\n                    that._fileState(fileEntry, 'uploaded');\n                    fileEntry.removeClass('k-file-progress').addClass('k-file-success');\n                    that._updateHeaderUploadStatus();\n                    if (that._supportsRemove()) {\n                        that._fileAction(fileEntry, REMOVE);\n                    } else {\n                        that._clearFileAction(fileEntry);\n                    }\n                }\n                that._hideUploadProgress(fileEntry);\n                that._checkAllComplete();\n            },\n            _onUploadError: function (e, xhr) {\n                var that = this;\n                var module = that._module;\n                var fileEntry = getFileEntry(e);\n                var fileUid = fileEntry.data('uid');\n                that._setUploadErrorState(fileEntry);\n                that.trigger(ERROR, {\n                    operation: 'upload',\n                    files: fileEntry.data('fileNames'),\n                    XMLHttpRequest: xhr\n                });\n                logToConsole('Server response: ' + xhr.responseText);\n                if (!that.options.async.chunkSize) {\n                    that._hideUploadProgress(fileEntry);\n                } else {\n                    if (module._decreasePosition) {\n                        module._decreasePosition(fileUid);\n                    }\n                }\n                that._checkAllComplete();\n                if (this.options.async.autoRetryAfter) {\n                    this._autoRetryAfter(fileEntry);\n                }\n            },\n            _autoRetryAfter: function (fileEntry) {\n                var that = this;\n                var retries = this._module.retries;\n                if (!retries) {\n                    return;\n                }\n                if (!retries[fileEntry.data('uid')]) {\n                    retries[fileEntry.data('uid')] = 1;\n                }\n                if (retries[fileEntry.data('uid')] <= this.options.async.maxAutoRetries) {\n                    retries[fileEntry.data('uid')]++;\n                    setTimeout(function () {\n                        that._module.performUpload(fileEntry);\n                    }, this.options.async.autoRetryAfter);\n                }\n            },\n            _setUploadErrorState: function (fileEntry) {\n                var that = this;\n                var uploadPercentage;\n                that._fileState(fileEntry, 'failed');\n                fileEntry.removeClass('k-file-progress').addClass('k-file-error');\n                that._updateUploadProgress(fileEntry);\n                uploadPercentage = $('.k-upload-pct', fileEntry);\n                if (uploadPercentage.length > 0) {\n                    if (!uploadPercentage.parent().find('.k-i-warning').length) {\n                        uploadPercentage.removeClass('k-upload-pct').addClass('k-icon k-i-warning');\n                    }\n                    uploadPercentage.empty();\n                } else {\n                    $('.k-upload-status', fileEntry).prepend('<span class=\\'k-icon k-i-warning\\'></span>');\n                }\n                this._updateHeaderUploadStatus();\n                this._fileAction(fileEntry, 'retry');\n                this._fileAction(fileEntry, REMOVE, true);\n            },\n            _updateUploadProgress: function (fileEntry) {\n                var that = this;\n                if (!that.options.async.chunkSize) {\n                    $('.k-progress', fileEntry).width('100%');\n                } else {\n                    var fileUid = fileEntry.data('uid');\n                    if (that._module.metaData) {\n                        var fileMetaData = that._module.metaData[fileUid];\n                        if (fileMetaData) {\n                            var percentComplete = fileMetaData.totalChunks ? Math.round(fileMetaData.chunkIndex / fileMetaData.totalChunks * 100) : 100;\n                            that._onFileProgress({ target: $(fileEntry, that.wrapper) }, percentComplete);\n                        }\n                    }\n                }\n            },\n            _hideUploadProgress: function (fileEntry) {\n                $('.k-progress', fileEntry).delay(PROGRESSHIDEDELAY).fadeOut(PROGRESSHIDEDURATION, function () {\n                    $(this).css('width', '0%');\n                });\n            },\n            _showUploadButton: function () {\n                var that = this;\n                var uploadButton = $('.k-upload-selected', that.wrapper);\n                var clearButton = $('.k-clear-selected', that.wrapper);\n                if (uploadButton.length === 0) {\n                    uploadButton = that._renderAction('', this.localization.uploadSelectedFiles).addClass('k-upload-selected');\n                    clearButton = that._renderAction('', this.localization.clearSelectedFiles).addClass('k-clear-selected');\n                }\n                this.wrapper.append(clearButton, uploadButton);\n            },\n            _hideUploadButton: function () {\n                $('.k-upload-selected, .k-clear-selected', this.wrapper).remove();\n            },\n            _showHeaderUploadStatus: function (isUploading) {\n                var that = this;\n                var localization = that.localization;\n                var dropZone = $('.k-dropzone', that.wrapper);\n                var headerUploadStatus = $('.k-upload-status-total', that.wrapper);\n                if (headerUploadStatus.length !== 0) {\n                    headerUploadStatus.remove();\n                }\n                headerUploadStatus = '<strong class=\"k-upload-status k-upload-status-total\"><span class=\"k-icon\"></span></strong>';\n                if (isUploading) {\n                    headerUploadStatus = $(headerUploadStatus).append(localization.headerStatusUploading);\n                    headerUploadStatus.find('.k-icon').addClass(headerStatusIcon.loading);\n                } else {\n                    headerUploadStatus = $(headerUploadStatus).append(localization.headerStatusUploaded);\n                    headerUploadStatus.find('.k-icon').addClass(headerStatusIcon.warning);\n                }\n                if (dropZone.length > 0) {\n                    dropZone.append(headerUploadStatus);\n                } else {\n                    $('.k-upload-button', that.wrapper).after(headerUploadStatus);\n                }\n            },\n            _updateHeaderUploadStatus: function () {\n                var that = this;\n                var headerUploadStatus = $('.k-upload-status-total', this.wrapper);\n                var currentlyUploading = $('.k-file', that.wrapper).not('.k-file-success, .k-file-error, .k-file-invalid');\n                var currentlyInvalid = $('.k-file-invalid', that.wrapper);\n                var currentlyFailed = $('.k-file-error', that.wrapper);\n                var currentlyPaused = $('.k-file', that.wrapper).find('.k-i-play-sm');\n                var failedUploads, headerUploadStatusIcon;\n                if (currentlyPaused.length && (currentlyPaused.length === currentlyUploading.length || !that.options.async.concurrent)) {\n                    headerUploadStatusIcon = $('.k-icon', headerUploadStatus).removeClass().addClass('k-icon').addClass('k-i-pause-sm');\n                    headerUploadStatus.html(headerUploadStatusIcon).append(that.localization.headerStatusPaused);\n                } else if (currentlyUploading.length === 0 || currentlyInvalid.length > 0 || currentlyFailed.length > 0) {\n                    failedUploads = $('.k-file.k-file-error, .k-file.k-file-invalid', that.wrapper);\n                    headerUploadStatus = $('.k-upload-status-total', that.wrapper);\n                    headerUploadStatusIcon = $('.k-icon', headerUploadStatus).removeClass().addClass('k-icon').addClass(failedUploads.length !== 0 ? headerStatusIcon.warning : headerStatusIcon.success);\n                    headerUploadStatus.html(headerUploadStatusIcon).append(that.localization.headerStatusUploaded);\n                }\n            },\n            _hideHeaderUploadstatus: function () {\n                $('.k-upload-status-total', this.wrapper).remove();\n            },\n            _onParentFormSubmit: function () {\n                var upload = this, element = upload.element;\n                if (typeof this._module.onAbort !== 'undefined') {\n                    this._module.onAbort();\n                }\n                if (!element.value) {\n                    var input = $(element);\n                    input.attr('disabled', 'disabled');\n                    window.setTimeout(function () {\n                        input.removeAttr('disabled');\n                    }, 0);\n                }\n            },\n            _onParentFormReset: function () {\n                $('.k-upload-files', this.wrapper).remove();\n            },\n            _supportsFormData: function () {\n                return typeof FormData != 'undefined';\n            },\n            _supportsMultiple: function () {\n                var windows = this._userAgent().indexOf('Windows') > -1;\n                return !kendo.support.browser.opera && !(kendo.support.browser.safari && windows);\n            },\n            _supportsDrop: function () {\n                var userAgent = this._userAgent().toLowerCase();\n                var isChrome = /chrome/.test(userAgent);\n                var isSafari = !isChrome && /safari/.test(userAgent);\n                var isWindowsSafari = isSafari && /windows/.test(userAgent);\n                return !isWindowsSafari && this._supportsFormData() && this.options.async.saveUrl;\n            },\n            _userAgent: function () {\n                return navigator.userAgent;\n            },\n            _setupDropZone: function () {\n                var that = this;\n                $('.k-upload-button', that.wrapper).wrap('<div class=\\'k-dropzone\\'></div>');\n                var ns = that._ns;\n                var dropZone = $('.k-dropzone', that.wrapper).append($('<em>' + that.localization.dropFilesHere + '</em>')).on('dragenter' + ns, stopEvent).on('dragover' + ns, function (e) {\n                    e.preventDefault();\n                }).on('drop' + ns, $.proxy(that._onDrop, that));\n                bindDragEventWrappers(dropZone, ns, function () {\n                    if (!dropZone.closest('.k-upload').hasClass('k-state-disabled')) {\n                        dropZone.addClass('k-dropzone-hovered');\n                    }\n                }, function () {\n                    dropZone.removeClass('k-dropzone-hovered');\n                });\n                that._bindDocumentDragEventWrappers(dropZone);\n            },\n            _setupCustomDropZone: function () {\n                var that = this;\n                var dropZone = $(that.options.dropZone);\n                $('.k-upload-button', that.wrapper).wrap('<div class=\\'k-dropzone\\'></div>');\n                var ns = that._ns;\n                dropZone.on('dragenter' + ns, stopEvent).on('dragover' + ns, function (e) {\n                    e.preventDefault();\n                }).on('drop' + ns, $.proxy(that._onDrop, that));\n                bindDragEventWrappers(dropZone, ns, function (e) {\n                    if (!that.wrapper.hasClass('k-state-disabled')) {\n                        dropZone.removeClass('k-dropzone-hovered');\n                        $(e.target).addClass('k-dropzone-hovered');\n                    }\n                }, function () {\n                    dropZone.removeClass('k-dropzone-hovered');\n                });\n                that._bindDocumentDragEventWrappers(dropZone);\n            },\n            _bindDocumentDragEventWrappers: function (dropZone) {\n                var that = this;\n                var ns = that._ns;\n                bindDragEventWrappers($(document), ns, function () {\n                    if (!that.wrapper.hasClass('k-state-disabled')) {\n                        dropZone.addClass('k-dropzone-active');\n                        dropZone.closest('.k-upload').removeClass('k-upload-empty');\n                    }\n                }, function () {\n                    dropZone.removeClass('k-dropzone-active');\n                    if ($('li.k-file', dropZone.closest('.k-upload')).length === 0) {\n                        dropZone.closest('.k-upload').addClass('k-upload-empty');\n                    }\n                });\n            },\n            _supportsRemove: function () {\n                return !!this.options.async.removeUrl;\n            },\n            _submitRemove: function (fileNames, eventArgs, onSuccess, onError) {\n                var upload = this, removeField = upload.options.async.removeField || 'fileNames', params = $.extend(eventArgs.data, antiForgeryTokens());\n                params[removeField] = fileNames;\n                jQuery.ajax({\n                    type: this.options.async.removeVerb,\n                    dataType: 'json',\n                    dataFilter: normalizeJSON,\n                    url: this.options.async.removeUrl,\n                    traditional: true,\n                    data: params,\n                    headers: eventArgs.headers,\n                    success: onSuccess,\n                    error: onError,\n                    xhrFields: { withCredentials: this.options.async.withCredentials }\n                });\n            },\n            _wrapInput: function (input) {\n                var that = this;\n                var options = that.options;\n                input.wrap('<div class=\\'k-widget k-upload k-header\\'><div class=\\'k-button k-upload-button\\' aria-label=\\'' + this.localization.select + '\\'></div></div>');\n                if (!options.async.saveUrl) {\n                    input.closest('.k-upload').addClass('k-upload-sync');\n                }\n                input.closest('.k-upload').addClass('k-upload-empty');\n                input.closest('.k-button').append('<span>' + this.localization.select + '</span>');\n                return input.closest('.k-upload');\n            },\n            _checkAllComplete: function () {\n                if ($('.k-file.k-file-progress', this.wrapper).length === 0) {\n                    this.trigger(COMPLETE);\n                }\n            },\n            _inputFiles: function (sourceInput) {\n                return inputFiles(sourceInput);\n            }\n        });\n        var syncUploadModule = function (upload) {\n            this.name = 'syncUploadModule';\n            this.element = upload.wrapper;\n            this.upload = upload;\n            this.element.closest('form').attr('enctype', 'multipart/form-data').attr('encoding', 'multipart/form-data');\n        };\n        syncUploadModule.prototype = {\n            onSelect: function (e, files) {\n                var upload = this.upload;\n                var sourceInput = $(e.target);\n                var filesContainErrors = upload._filesContainValidationErrors(files);\n                upload._addInput(sourceInput);\n                var fileData = { 'fileNames': files };\n                if (filesContainErrors) {\n                    sourceInput.remove();\n                } else {\n                    fileData.relatedInput = sourceInput;\n                }\n                var file = upload._enqueueFile(getFileName(sourceInput), fileData);\n                if (filesContainErrors) {\n                    upload._hideUploadProgress(file);\n                }\n                upload._fileAction(file, REMOVE);\n            },\n            onRemove: function (e) {\n                var fileEntry = getFileEntry(e);\n                var relatedInput = fileEntry.data('relatedInput');\n                if (relatedInput) {\n                    relatedInput.remove();\n                }\n                this.upload._removeFileEntry(fileEntry);\n            }\n        };\n        var iframeUploadModule = function (upload) {\n            this.name = 'iframeUploadModule';\n            this.element = upload.wrapper;\n            this.upload = upload;\n            this.iframes = [];\n        };\n        Upload._frameId = 0;\n        iframeUploadModule.prototype = {\n            onSelect: function (e, files) {\n                var upload = this.upload;\n                var sourceInput = $(e.target);\n                var hasValidationErrors = upload._filesContainValidationErrors(files);\n                var fileEntry = this.prepareUpload(sourceInput, files, hasValidationErrors);\n                if (upload.options.async.autoUpload) {\n                    if (!hasValidationErrors) {\n                        this.performUpload(fileEntry);\n                    } else {\n                        upload._fileAction(fileEntry, REMOVE);\n                        upload._showHeaderUploadStatus(false);\n                    }\n                } else {\n                    upload._fileAction(fileEntry, REMOVE);\n                    if (!hasValidationErrors) {\n                        upload._showUploadButton();\n                    } else {\n                        upload._updateHeaderUploadStatus();\n                    }\n                }\n                if (hasValidationErrors) {\n                    upload._hideUploadProgress(fileEntry);\n                }\n            },\n            prepareUpload: function (sourceInput, files, hasValidationErrors) {\n                var upload = this.upload;\n                var activeInput = $(upload.element);\n                var name = upload.options.async.saveField || sourceInput.attr('name');\n                var fileEntry, fileData, iframe, form;\n                upload._addInput(sourceInput);\n                sourceInput.attr('name', name);\n                if (!hasValidationErrors) {\n                    iframe = this.createFrame(upload.name + '_' + Upload._frameId++);\n                    this.registerFrame(iframe);\n                    form = this.createForm(upload.options.async.saveUrl, iframe.attr('name')).append(activeInput);\n                    fileData = {\n                        'frame': iframe,\n                        'relatedInput': activeInput,\n                        'fileNames': files\n                    };\n                } else {\n                    sourceInput.remove();\n                    fileData = { 'fileNames': files };\n                }\n                fileEntry = upload._enqueueFile(getFileName(sourceInput), fileData);\n                if (iframe) {\n                    iframe.data({\n                        'form': form,\n                        'file': fileEntry\n                    });\n                }\n                return fileEntry;\n            },\n            performUpload: function (fileEntry) {\n                var e = { files: fileEntry.data('fileNames') };\n                var iframe = fileEntry.data('frame');\n                var upload = this.upload;\n                if (!upload.trigger(UPLOAD, e)) {\n                    upload._hideUploadButton();\n                    upload._showHeaderUploadStatus(true);\n                    iframe.appendTo(document.body);\n                    var form = iframe.data('form').attr('action', upload.options.async.saveUrl).appendTo(document.body);\n                    e.data = $.extend({}, e.data, antiForgeryTokens());\n                    for (var key in e.data) {\n                        var dataInput = form.find('input[name=\\'' + key + '\\']');\n                        if (dataInput.length === 0) {\n                            dataInput = $('<input>', {\n                                type: 'hidden',\n                                name: key\n                            }).prependTo(form);\n                        }\n                        dataInput.val(e.data[key]);\n                    }\n                    upload._fileAction(fileEntry, CANCEL);\n                    upload._fileState(fileEntry, 'uploading');\n                    $(fileEntry).removeClass('k-file-error').addClass('k-file-progress');\n                    iframe.one('load', $.proxy(this.onIframeLoad, this));\n                    form[0].submit();\n                } else {\n                    upload._removeFileEntry(iframe.data('file'));\n                    this.cleanupFrame(iframe);\n                    this.unregisterFrame(iframe);\n                }\n            },\n            onSaveSelected: function () {\n                var module = this;\n                var upload = module.upload;\n                $('.k-file', this.element).each(function () {\n                    var fileEntry = $(this);\n                    var started = isFileUploadStarted(fileEntry);\n                    var hasValidationErrors = upload._filesContainValidationErrors(fileEntry.data('fileNames'));\n                    if (!started && !hasValidationErrors) {\n                        module.performUpload(fileEntry);\n                    }\n                });\n            },\n            onIframeLoad: function (e) {\n                var iframe = $(e.target), responseText;\n                try {\n                    responseText = iframe.contents().text();\n                } catch (ex) {\n                    responseText = 'Error trying to get server response: ' + ex;\n                }\n                this.processResponse(iframe, responseText);\n            },\n            processResponse: function (iframe, responseText) {\n                var fileEntry = iframe.data('file'), module = this, fakeXHR = { responseText: responseText };\n                tryParseJSON(responseText, function (jsonResult) {\n                    $.extend(fakeXHR, {\n                        statusText: 'OK',\n                        status: '200'\n                    });\n                    module.upload._onFileProgress({ target: $(fileEntry, module.upload.wrapper) }, 100);\n                    module.upload._onUploadSuccess({ target: $(fileEntry, module.upload.wrapper) }, jsonResult, fakeXHR);\n                    module.cleanupFrame(iframe);\n                    module.unregisterFrame(iframe);\n                }, function () {\n                    $.extend(fakeXHR, {\n                        statusText: 'error',\n                        status: '500'\n                    });\n                    module.upload._onUploadError({ target: $(fileEntry, module.upload.wrapper) }, fakeXHR);\n                });\n            },\n            onCancel: function (e) {\n                var iframe = $(e.target).data('frame');\n                this.stopFrameSubmit(iframe);\n                this.cleanupFrame(iframe);\n                this.unregisterFrame(iframe);\n                this.upload._removeFileEntry(iframe.data('file'));\n            },\n            onRetry: function (e) {\n                var fileEntry = getFileEntry(e);\n                this.performUpload(fileEntry);\n            },\n            onRemove: function (e, eventArgs, shouldSendRemoveRequest) {\n                var module = this;\n                var upload = module.upload;\n                var fileEntry = getFileEntry(e);\n                var iframe = fileEntry.data('frame');\n                if (iframe) {\n                    module.unregisterFrame(iframe);\n                    upload._removeFileEntry(fileEntry);\n                    module.cleanupFrame(iframe);\n                } else {\n                    if (fileEntry.hasClass('k-file-success')) {\n                        removeUploadedFile(fileEntry, upload, eventArgs, shouldSendRemoveRequest);\n                    } else {\n                        upload._removeFileEntry(fileEntry);\n                    }\n                }\n            },\n            onAbort: function () {\n                var element = this.element, module = this;\n                $.each(this.iframes, function () {\n                    $('input', this.data('form')).appendTo(element);\n                    module.stopFrameSubmit(this[0]);\n                    this.data('form').remove();\n                    this.remove();\n                });\n                this.iframes = [];\n            },\n            createFrame: function (id) {\n                return $('<iframe' + ' name=\\'' + id + '\\'' + ' id=\\'' + id + '\\'' + ' style=\\'display:none;\\' />');\n            },\n            createForm: function (action, target) {\n                return $('<form enctype=\\'multipart/form-data\\' method=\\'POST\\'' + ' action=\\'' + action + '\\'' + ' target=\\'' + target + '\\'' + '/>');\n            },\n            stopFrameSubmit: function (frame) {\n                if (typeof frame.stop != 'undefined') {\n                    frame.stop();\n                } else if (frame.document) {\n                    frame.document.execCommand('Stop');\n                }\n            },\n            registerFrame: function (frame) {\n                this.iframes.push(frame);\n            },\n            unregisterFrame: function (frame) {\n                this.iframes = $.grep(this.iframes, function (value) {\n                    return value.attr('name') != frame.attr('name');\n                });\n            },\n            cleanupFrame: function (frame) {\n                var form = frame.data('form');\n                frame.data('file').data('frame', null);\n                setTimeout(function () {\n                    form.remove();\n                    frame.remove();\n                }, 1);\n            }\n        };\n        var formDataUploadModule = function (upload) {\n            this.name = 'formDataUploadModule';\n            this.element = upload.wrapper;\n            this.upload = upload;\n            this.position = {};\n            this.metaData = {};\n            this.cancelled = {};\n            this.resume = {};\n            this.paused = {};\n            this.retries = {};\n        };\n        formDataUploadModule.prototype = {\n            onSelect: function (e, files) {\n                var upload = this.upload;\n                var module = this;\n                var sourceElement = $(e.target);\n                var fileEntries = this.prepareUpload(sourceElement, files);\n                var hasValidationErrors;\n                var prev;\n                $.each(fileEntries, function (index) {\n                    hasValidationErrors = upload._filesContainValidationErrors($(this.data('fileNames')));\n                    if (upload.options.async.autoUpload) {\n                        if (!hasValidationErrors) {\n                            if (upload.options.async.chunkSize) {\n                                module.prepareChunk(this);\n                                prev = this.prev();\n                                if (upload.options.async.concurrent || index === 0 && !prev.length || index === 0 && prev.hasClass('k-file-success')) {\n                                    module.performUpload(this);\n                                }\n                            } else {\n                                module.performUpload(this);\n                            }\n                        } else {\n                            upload._fileAction(this, REMOVE);\n                            upload._showHeaderUploadStatus(false);\n                        }\n                    } else {\n                        upload._fileAction(this, REMOVE);\n                        if (!hasValidationErrors) {\n                            upload._showUploadButton();\n                            this.addClass('k-toupload');\n                        } else {\n                            upload._updateHeaderUploadStatus();\n                        }\n                    }\n                    if (hasValidationErrors) {\n                        upload._hideUploadProgress(this);\n                    }\n                });\n            },\n            prepareUpload: function (sourceElement, files) {\n                var fileEntries = this.enqueueFiles(files);\n                if (sourceElement.is('input')) {\n                    $.each(fileEntries, function () {\n                        $(this).data('relatedInput', sourceElement);\n                    });\n                    sourceElement.data('relatedFileEntries', fileEntries);\n                    this.upload._addInput(sourceElement);\n                }\n                return fileEntries;\n            },\n            enqueueFiles: function (files) {\n                var upload = this.upload;\n                var name;\n                var i;\n                var filesLength = files.length;\n                var currentFile;\n                var fileEntry;\n                var fileEntries = [];\n                if (upload.options.async.batch === true) {\n                    name = $.map(files, function (file) {\n                        return file.name;\n                    }).join(', ');\n                    if (upload.directory || upload.options.directoryDrop) {\n                        $(files).each(function () {\n                            if (this.rawFile.webkitRelativePath || this.rawFile.relativePath) {\n                                this.name = this.rawFile.webkitRelativePath || this.rawFile.relativePath;\n                            }\n                        });\n                    }\n                    fileEntry = upload._enqueueFile(name, { fileNames: files });\n                    fileEntry.data('files', files);\n                    fileEntries.push(fileEntry);\n                } else {\n                    for (i = 0; i < filesLength; i++) {\n                        currentFile = files[i];\n                        name = currentFile.name;\n                        if (upload.directory || upload.options.directoryDrop) {\n                            if (currentFile.rawFile.webkitRelativePath || currentFile.rawFile.relativePath) {\n                                currentFile.name = currentFile.rawFile.webkitRelativePath || currentFile.rawFile.relativePath;\n                            }\n                        }\n                        fileEntry = upload._enqueueFile(name, { fileNames: [currentFile] });\n                        fileEntry.data('files', [currentFile]);\n                        fileEntries.push(fileEntry);\n                    }\n                }\n                return fileEntries;\n            },\n            performUpload: function (fileEntry) {\n                var upload = this.upload, formData = this.createFormData(), xhr = this.createXHR(), e = {\n                        files: fileEntry.data('fileNames'),\n                        XMLHttpRequest: xhr\n                    }, files;\n                if (!upload.trigger(UPLOAD, e)) {\n                    if (fileEntry.find('.k-i-cancel').length === 0) {\n                        if (upload.options.async.chunkSize) {\n                            upload._fileAction(fileEntry, PAUSE);\n                        }\n                        upload._fileAction(fileEntry, CANCEL, upload.options.async.chunkSize);\n                    }\n                    if (!upload.wrapper.find('.k-toupload').length) {\n                        upload._hideUploadButton();\n                    }\n                    upload._showHeaderUploadStatus(true);\n                    if (e.formData) {\n                        formData = e.formData;\n                    } else {\n                        e.data = $.extend({}, e.data, antiForgeryTokens());\n                        for (var key in e.data) {\n                            formData.append(key, e.data[key]);\n                        }\n                        files = fileEntry.data('files');\n                        if (files) {\n                            this.populateFormData(formData, files);\n                        }\n                    }\n                    upload._fileState(fileEntry, 'uploading');\n                    $(fileEntry).removeClass('k-file-error').addClass('k-file-progress');\n                    if (upload.options.async.useArrayBuffer && window.FileReader) {\n                        this._readFile(upload.options.async.saveUrl, formData, fileEntry, xhr);\n                    } else {\n                        this.postFormData(upload.options.async.saveUrl, formData, fileEntry, xhr);\n                    }\n                } else {\n                    this.removeFileEntry(fileEntry);\n                }\n            },\n            _readFile: function (saveUrl, formData, fileEntry, xhr) {\n                var that = this;\n                var upload = that.upload;\n                var file = fileEntry.data('files')[0];\n                var reader = new FileReader();\n                reader.onload = function (e) {\n                    try {\n                        if (!that.fileArrayBuffer) {\n                            that.fileArrayBuffer = e.target.result;\n                        } else {\n                            that.fileArrayBuffer = that._appendBuffer(that.fileArrayBuffer, e.target.result);\n                        }\n                    } catch (err) {\n                        upload._onUploadError({ target: $(fileEntry, upload.wrapper) }, xhr);\n                        return;\n                    }\n                    if (that.position[file.uid] > file.size) {\n                        that.postFormData(upload.options.async.saveUrl, that.fileArrayBuffer, fileEntry, xhr);\n                        that.fileArrayBuffer = null;\n                    } else {\n                        that._readFile(saveUrl, formData, fileEntry, xhr);\n                    }\n                };\n                reader.onerror = function () {\n                    upload._onUploadError({ target: $(fileEntry, upload.wrapper) }, xhr);\n                };\n                reader.readAsArrayBuffer(that._getCurrentChunk(file.rawFile, file.uid));\n            },\n            _appendBuffer: function (buffer1, buffer2) {\n                var tmp = new Uint8Array(buffer1.byteLength + buffer2.byteLength);\n                tmp.set(new Uint8Array(buffer1), 0);\n                tmp.set(new Uint8Array(buffer2), buffer1.byteLength);\n                return tmp.buffer;\n            },\n            onSaveSelected: function () {\n                var module = this;\n                var upload = module.upload;\n                $('.k-toupload', this.element).filter(function () {\n                    var fileEntry = $(this);\n                    var started = isFileUploadStarted(fileEntry);\n                    var hasValidationErrors = upload._filesContainValidationErrors(fileEntry.data('fileNames'));\n                    return !started && !hasValidationErrors;\n                }).each(function (index) {\n                    var fileEntry = $(this);\n                    var prevEntry = fileEntry.prev();\n                    fileEntry.removeClass('k-toupload');\n                    if (upload.options.async.chunkSize) {\n                        module.prepareChunk(fileEntry);\n                        if (upload.options.async.concurrent || index === 0 && !prevEntry.length || (index === 0 && prevEntry.hasClass('k-file-success') || prevEntry.hasClass('k-file-error'))) {\n                            module.performUpload(fileEntry);\n                        }\n                    } else {\n                        module.performUpload(fileEntry);\n                    }\n                });\n            },\n            onCancel: function (e) {\n                var fileEntry = getFileEntry(e);\n                if (this.upload.options.async.chunkSize) {\n                    this.cancelled[fileEntry.data('uid')] = true;\n                }\n                this.stopUploadRequest(fileEntry);\n                this.removeFileEntry(fileEntry);\n            },\n            onPause: function (e) {\n                var fileEntry = getFileEntry(e);\n                var fileUid = fileEntry.data('uid');\n                var async = this.upload.options.async;\n                if (async.chunkSize) {\n                    this.retries[fileUid] = async.maxAutoRetries + 1;\n                    this.paused[fileUid] = true;\n                    this.resume[fileUid] = false;\n                }\n            },\n            onResume: function (e) {\n                var fileEntry = getFileEntry(e);\n                var fileUid = fileEntry.data('uid');\n                if (this.upload.options.async.chunkSize) {\n                    delete this.paused[fileUid];\n                    this.resume[fileUid] = true;\n                    this.retries[fileEntry.data('uid')] = 1;\n                    this._increaseChunkIndex(fileUid);\n                    this.performUpload(fileEntry);\n                }\n            },\n            onRetry: function (e) {\n                var fileEntry = getFileEntry(e);\n                var async = this.upload.options.async;\n                if (async.chunkSize) {\n                    this.retries[fileEntry.data('uid')] = async.maxAutoRetries + 1;\n                    delete this.paused[fileEntry.data('uid')];\n                }\n                this.performUpload(fileEntry);\n            },\n            onRemove: function (e, eventArgs, shouldSendRemoveRequest) {\n                var module = this;\n                var upload = module.upload;\n                var fileEntry = getFileEntry(e);\n                var async = this.upload.options.async;\n                if (async.chunkSize) {\n                    this.retries[fileEntry.data('uid')] = async.maxAutoRetries + 1;\n                }\n                if (fileEntry.hasClass('k-file-success')) {\n                    removeUploadedFile(fileEntry, upload, eventArgs, shouldSendRemoveRequest);\n                } else {\n                    module.removeFileEntry(fileEntry);\n                }\n            },\n            createXHR: function () {\n                return new XMLHttpRequest();\n            },\n            postFormData: function (url, data, fileEntry, xhr) {\n                var module = this;\n                fileEntry.data('request', xhr);\n                xhr.addEventListener('load', function (e) {\n                    module.onRequestSuccess.call(module, e, fileEntry);\n                }, false);\n                xhr.addEventListener(ERROR, function (e) {\n                    module.onRequestError.call(module, e, fileEntry);\n                }, false);\n                xhr.upload.addEventListener('progress', function (e) {\n                    module.onRequestProgress.call(module, e, fileEntry);\n                }, false);\n                xhr.open('POST', url, true);\n                xhr.withCredentials = this.upload.options.async.withCredentials;\n                var accept = this.upload.options.async.accept;\n                if (accept) {\n                    xhr.setRequestHeader('Accept', accept);\n                }\n                xhr.send(data);\n            },\n            createFormData: function () {\n                return new FormData();\n            },\n            populateFormData: function (data, files) {\n                var chunk;\n                var i;\n                var length = files.length;\n                var uid;\n                var upload = this.upload;\n                if (upload.options.async.chunkSize) {\n                    uid = files[0].uid;\n                    chunk = this._getCurrentChunk(files[0].rawFile, uid);\n                    data.append(upload.options.async.saveField || upload.name, chunk);\n                    var serializedMetaData = JSON.stringify(this.metaData[uid]);\n                    data.append('metadata', serializedMetaData);\n                } else {\n                    for (i = 0; i < length; i++) {\n                        data.append(upload.options.async.saveField || upload.name, files[i].rawFile);\n                    }\n                }\n                return data;\n            },\n            onRequestSuccess: function (e, fileEntry) {\n                var xhr = e.target, module = this;\n                function raiseError() {\n                    module.upload._onUploadError({ target: $(fileEntry, module.upload.wrapper) }, xhr);\n                }\n                function parseSuccess(jsonResult) {\n                    var batch = module.upload.options.async.batch;\n                    var chunkSize = module.upload.options.async.chunkSize;\n                    var concurrent = module.upload.options.async.concurrent;\n                    var fileUid = jsonResult.fileUid;\n                    if (module.paused[fileUid] || module.cancelled[fileUid]) {\n                        return;\n                    }\n                    delete module.retries[fileUid];\n                    if (chunkSize && !batch && !jsonResult.uploaded) {\n                        module._increaseChunkIndex(fileUid);\n                        module.performUpload(fileEntry);\n                    } else if (chunkSize && !batch && !concurrent && fileEntry.next().length && !fileEntry.next().hasClass('k-toupload')) {\n                        module.upload._onFileProgress({ target: $(fileEntry, module.upload.wrapper) }, 100);\n                        module._resetChunkIndex(fileUid);\n                        module.upload._onUploadSuccess({ target: $(fileEntry, module.upload.wrapper) }, jsonResult, xhr);\n                        module.performUpload(fileEntry.next());\n                    } else {\n                        module.upload._onFileProgress({ target: $(fileEntry, module.upload.wrapper) }, 100);\n                        module.upload._onUploadSuccess({ target: $(fileEntry, module.upload.wrapper) }, jsonResult, xhr);\n                        module.cleanupFileEntry(fileEntry);\n                    }\n                }\n                if (xhr.status >= 200 && xhr.status <= 299) {\n                    tryParseJSON(xhr.responseText, parseSuccess, raiseError);\n                } else {\n                    raiseError();\n                }\n            },\n            onRequestError: function (e, fileEntry) {\n                var xhr = e.target;\n                this.upload._onUploadError({ target: $(fileEntry, this.upload.wrapper) }, xhr);\n            },\n            cleanupFileEntry: function (fileEntry) {\n                var relatedInput = fileEntry.data('relatedInput'), uploadComplete = true;\n                if (relatedInput) {\n                    $.each(relatedInput.data('relatedFileEntries') || [], function () {\n                        if (this.parent().length > 0 && this[0] != fileEntry[0]) {\n                            uploadComplete = uploadComplete && this.hasClass('k-file-success');\n                        }\n                    });\n                    if (uploadComplete) {\n                        relatedInput.remove();\n                    }\n                }\n            },\n            removeFileEntry: function (fileEntry) {\n                var chunkSize = this.upload.options.async.chunkSize;\n                var concurrent = this.upload.options.async.concurrent;\n                this.cleanupFileEntry(fileEntry);\n                if (chunkSize && !concurrent) {\n                    if (fileEntry.next().length) {\n                        this.performUpload(fileEntry.next());\n                    }\n                }\n                this.upload._removeFileEntry(fileEntry);\n            },\n            onRequestProgress: function (e, fileEntry) {\n                var percentComplete = Math.round(e.loaded * 100 / e.total);\n                var fileUid = fileEntry.data('uid');\n                var fileMetaData;\n                if (this.upload.options.async.chunkSize) {\n                    fileMetaData = this.metaData[fileUid];\n                    percentComplete = fileMetaData.totalChunks ? Math.round(fileMetaData.chunkIndex / fileMetaData.totalChunks * 100) : 100;\n                }\n                this.upload._onFileProgress({ target: $(fileEntry, this.upload.wrapper) }, percentComplete);\n            },\n            stopUploadRequest: function (fileEntry) {\n                fileEntry.data('request').abort();\n            },\n            prepareChunk: function (fileEntry) {\n                var file = fileEntry.data('files')[0].rawFile;\n                var uid = fileEntry.data('files')[0].uid;\n                var chunkSize = this.upload.options.async.chunkSize;\n                this.position[uid] = 0;\n                this.metaData[uid] = {\n                    chunkIndex: 0,\n                    contentType: file.type,\n                    fileName: file.name,\n                    totalFileSize: file.size,\n                    totalChunks: Math.ceil(file.size / chunkSize),\n                    uploadUid: uid\n                };\n            },\n            _decreaseChunkIndex: function (uid) {\n                this.metaData[uid].chunkIndex--;\n            },\n            _increaseChunkIndex: function (uid) {\n                this.metaData[uid].chunkIndex++;\n            },\n            _resetChunkIndex: function (uid) {\n                this.metaData[uid].chunkIndex = 0;\n            },\n            _decreasePosition: function (uid) {\n                this.position[uid] -= this.upload.options.async.chunkSize;\n            },\n            _getCurrentChunk: function (file, uid) {\n                var oldPosition = this.position[uid];\n                var methodToInvoke;\n                var async = this.upload.options.async;\n                var chunkSize = async.chunkSize || async.bufferChunkSize;\n                if (!this.position[uid]) {\n                    this.position[uid] = 0;\n                }\n                this.position[uid] += chunkSize;\n                if (!!(methodToInvoke = this._getChunker(file))) {\n                    return file[methodToInvoke](oldPosition, this.position[uid]);\n                } else {\n                    return file;\n                }\n            },\n            _getChunker: function (file) {\n                if (file.slice) {\n                    return 'slice';\n                } else if (file.mozSlice) {\n                    return 'mozSlice';\n                } else if (file.webkitSlice) {\n                    return 'webkitSlice';\n                } else {\n                    return null;\n                }\n            }\n        };\n        function getFileName(input) {\n            return $.map(inputFiles(input), function (file) {\n                return file.name;\n            }).join(', ');\n        }\n        function inputFiles($input) {\n            var input = $input[0];\n            if (input.files) {\n                return getAllFileInfo(input.files);\n            } else {\n                return [{\n                        name: stripPath(input.value),\n                        extension: getFileExtension(input.value),\n                        size: null\n                    }];\n            }\n        }\n        function getAllFileInfo(rawFiles) {\n            return $.map(rawFiles, function (file) {\n                return getFileInfo(file);\n            });\n        }\n        function getFileInfo(rawFile) {\n            var fileName = rawFile.name || rawFile.fileName;\n            return {\n                name: kendo.htmlEncode(fileName),\n                extension: getFileExtension(fileName),\n                size: typeof rawFile.size == 'number' ? rawFile.size : rawFile.fileSize,\n                rawFile: rawFile\n            };\n        }\n        function getFileExtension(fileName) {\n            var matches = fileName.match(rFileExtension);\n            return matches ? matches[0] : '';\n        }\n        function stripPath(name) {\n            var slashIndex = name.lastIndexOf('\\\\');\n            return slashIndex != -1 ? name.substr(slashIndex + 1) : name;\n        }\n        function assignGuidToFiles(files, unique) {\n            var uid = kendo.guid();\n            return $.map(files, function (file) {\n                file.uid = unique ? kendo.guid() : uid;\n                return file;\n            });\n        }\n        function validateFiles(files, validationInfo) {\n            var allowedExtensions = parseAllowedExtensions(validationInfo.allowedExtensions);\n            var maxFileSize = validationInfo.maxFileSize;\n            var minFileSize = validationInfo.minFileSize;\n            for (var i = 0; i < files.length; i++) {\n                validateFileExtension(files[i], allowedExtensions);\n                validateFileSize(files[i], minFileSize, maxFileSize);\n            }\n        }\n        function parseAllowedExtensions(extensions) {\n            var allowedExtensions = $.map(extensions, function (ext) {\n                var parsedExt = ext.substring(0, 1) === '.' ? ext : '.' + ext;\n                return parsedExt.toLowerCase();\n            });\n            return allowedExtensions;\n        }\n        function validateFileExtension(file, allowedExtensions) {\n            if (allowedExtensions.length > 0) {\n                if (allowedExtensions.indexOf(file.extension.toLowerCase()) < 0) {\n                    file.validationErrors = file.validationErrors || [];\n                    if ($.inArray(INVALIDFILEEXTENSION, file.validationErrors) === -1) {\n                        file.validationErrors.push(INVALIDFILEEXTENSION);\n                    }\n                }\n            }\n        }\n        function validateFileSize(file, minFileSize, maxFileSize) {\n            if (minFileSize !== 0 && file.size < minFileSize) {\n                file.validationErrors = file.validationErrors || [];\n                if ($.inArray(INVALIDMINFILESIZE, file.validationErrors) === -1) {\n                    file.validationErrors.push(INVALIDMINFILESIZE);\n                }\n            }\n            if (maxFileSize !== 0 && file.size > maxFileSize) {\n                file.validationErrors = file.validationErrors || [];\n                if ($.inArray(INVALIDMAXFILESIZE, file.validationErrors) === -1) {\n                    file.validationErrors.push(INVALIDMAXFILESIZE);\n                }\n            }\n        }\n        function getTotalFilesSizeMessage(files) {\n            var totalSize = 0;\n            if (typeof files[0].size == 'number') {\n                for (var i = 0; i < files.length; i++) {\n                    if (files[i].size) {\n                        totalSize += files[i].size;\n                    }\n                }\n            } else {\n                return '';\n            }\n            totalSize /= 1024;\n            if (totalSize < 1024) {\n                return totalSize.toFixed(2) + ' KB';\n            } else {\n                return (totalSize / 1024).toFixed(2) + ' MB';\n            }\n        }\n        function shouldRemoveFileEntry(upload) {\n            return !upload.multiple && $('.k-file', upload.wrapper).length > 1;\n        }\n        function removeUploadedFile(fileEntry, upload, eventArgs, shouldSendRemoveRequest) {\n            if (!upload._supportsRemove()) {\n                if (shouldRemoveFileEntry(upload) || !shouldSendRemoveRequest) {\n                    upload._removeFileEntry(fileEntry);\n                }\n                return;\n            }\n            var files = fileEntry.data('fileNames');\n            var fileNames = $.map(files, function (file) {\n                return file.name;\n            });\n            if (shouldSendRemoveRequest === false) {\n                upload._removeFileEntry(fileEntry);\n                return;\n            }\n            upload._submitRemove(fileNames, eventArgs, function onSuccess(data, textStatus, xhr) {\n                var prevented = upload.trigger(SUCCESS, {\n                    operation: 'remove',\n                    files: files,\n                    response: data,\n                    XMLHttpRequest: xhr\n                });\n                if (!prevented) {\n                    upload._removeFileEntry(fileEntry);\n                }\n            }, function onError(xhr) {\n                if (shouldRemoveFileEntry(upload)) {\n                    upload._removeFileEntry(fileEntry);\n                }\n                upload.trigger(ERROR, {\n                    operation: 'remove',\n                    files: files,\n                    XMLHttpRequest: xhr\n                });\n                logToConsole('Server response: ' + xhr.responseText);\n            });\n        }\n        function tryParseJSON(input, onSuccess, onError) {\n            var success = false, json = '';\n            try {\n                json = $.parseJSON(normalizeJSON(input));\n                success = true;\n            } catch (e) {\n                onError();\n            }\n            if (success) {\n                onSuccess(json);\n            }\n        }\n        function normalizeJSON(input) {\n            if (typeof input === 'undefined' || input === '') {\n                input = '{}';\n            }\n            return input;\n        }\n        function stopEvent(e) {\n            e.stopPropagation();\n            e.preventDefault();\n        }\n        function bindDragEventWrappers(element, namespace, onDragEnter, onDragLeave) {\n            var hideInterval, lastDrag;\n            element.on('dragenter' + namespace, function (e) {\n                onDragEnter(e);\n                lastDrag = new Date();\n                if (!hideInterval) {\n                    hideInterval = setInterval(function () {\n                        var sinceLastDrag = new Date() - lastDrag;\n                        if (sinceLastDrag > 100) {\n                            onDragLeave();\n                            clearInterval(hideInterval);\n                            hideInterval = null;\n                        }\n                    }, 100);\n                }\n            }).on('dragover' + namespace, function () {\n                lastDrag = new Date();\n            });\n        }\n        function isFileUploadStarted(fileEntry) {\n            return fileEntry.is('.k-file-progress, .k-file-success, .k-file-error');\n        }\n        function getFileEntry(e) {\n            return $(e.target).closest('.k-file');\n        }\n        kendo.ui.plugin(Upload);\n    }(window.kendo.jQuery));\n    return window.kendo;\n}, typeof define == 'function' && define.amd ? define : function (a1, a2, a3) {\n    (a3 || a2)();\n}));"]}