text: /*!
   * @copyright Copyright &copy; Kartik Visweswaran, Krajee.com, 2014 - 2015
   * @version 4.2.8
   *
   * File input styled for Bootstrap 3.0 that utilizes HTML5 File Input's advanced 
   * features including the FileReader API. 
   * 
   * The plugin drastically enhances the HTML file input to preview multiple files on the client before
   * upload. In addition it provides the ability to preview content of images, text, videos, audio, html, 
   * flash and other objects. It also offers the ability to upload and delete files using AJAX, and add 
   * files in batches (i.e. preview, append, or remove before upload).
   * 
   * Author: Kartik Visweswaran
   * Copyright: 2015, Kartik Visweswaran, Krajee.com
   * For more JQuery plugins visit http://plugins.krajee.com
   * For more Yii related demos visit http://demos.krajee.com
   */
  (function (factory) {
      "use strict";
      if (typeof define === 'function' && define.amd) { // jshint ignore:line
          // AMD. Register as an anonymous module.
          define(['jquery'], factory); // jshint ignore:line
      } else { // noinspection JSUnresolvedVariable
          if (typeof module === 'object' && module.exports) { // jshint ignore:line
              // Node/CommonJS
              // noinspection JSUnresolvedVariable
              module.exports = factory(require('jquery')); // jshint ignore:line
          } else {
              // Browser globals
              factory(window.jQuery);
          }
      }
  }(function ($) {
      "use strict";
  
      $.fn.fileinputLocales = {};
  
      var isIE, isEdge, handler, previewCache, getNum, hasFileAPISupport, hasDragDropSupport, hasFileUploadSupport, addCss,
          STYLE_SETTING, OBJECT_PARAMS, DEFAULT_PREVIEW, defaultFileActionSettings, tMain1, tMain2, tPreview, tIcon, tClose,
          tCaption, tBtnDefault, tBtnLink, tBtnBrowse, tModal, tProgress, tFooter, tActions, tActionDelete, tActionUpload,
          tZoom, tGeneric, tHtml, tImage, tText, tVideo, tAudio, tFlash, tObject, tOther, defaultLayoutTemplates,
          defaultPreviewTemplates, defaultPreviewTypes, defaultPreviewSettings, defaultFileTypeSettings, isEmpty, isArray,
          isSet, getElement, uniqId, htmlEncode, replaceTags, objUrl, FileInput;
  
      isIE = function (ver) {
          // check for IE versions < 11
          if (navigator.appName !== 'Microsoft Internet Explorer') {
              return false;
          }
          if (ver === 10) {
              return new RegExp('msie\\s' + ver, 'i').test(navigator.userAgent);
          }
          var div = document.createElement("div"), status;
          div.innerHTML = "<!--[if IE " + ver + "]> <i></i> <![endif]-->";
          status = div.getElementsByTagName("i").length;
          document.body.appendChild(div);
          div.parentNode.removeChild(div);
          return status;
      };
      isEdge = function () {
          return new RegExp('Edge\/[0-9]+', 'i').test(navigator.userAgent);
      };
      handler = function ($el, event, callback, skipNS) {
          var ev = skipNS ? event : event + '.fileinput';
          $el.off(ev).on(ev, callback);
      };
      previewCache = {
          data: {},
          init: function (obj) {
              var content = obj.initialPreview, id = obj.id;
              if (content.length > 0 && !isArray(content)) {
                  content = content.split(obj.initialPreviewDelimiter);
              }
              previewCache.data[id] = {
                  content: content,
                  config: obj.initialPreviewConfig,
                  tags: obj.initialPreviewThumbTags,
                  delimiter: obj.initialPreviewDelimiter,
                  template: obj.previewGenericTemplate,
                  msg: function (n) {
                      return obj.getMsgSelected(n);
                  },
                  initId: obj.previewInitId,
                  footer: obj.getLayoutTemplate('footer').replace(/\{progress}/g, obj.renderThumbProgress()),
                  isDelete: obj.initialPreviewShowDelete,
                  caption: obj.initialCaption,
                  actions: function (showUpload, showDelete, disabled, url, key) {
                      return obj.renderFileActions(showUpload, showDelete, disabled, url, key);
                  }
              };
          },
          fetch: function (id) {
              return previewCache.data[id].content.filter(function (n) {
                  return n !== null;
              });
          },
          count: function (id, all) {
              return !!previewCache.data[id] && !!previewCache.data[id].content ?
                  (all ? previewCache.data[id].content.length : previewCache.fetch(id).length) : 0;
          },
          get: function (id, i, isDisabled) {
              var ind = 'init_' + i, data = previewCache.data[id], config = data.config[i],
                  previewId = data.initId + '-' + ind, out, $tmp, frameClass = ' file-preview-initial';
              /** @namespace config.frameClass */
              /** @namespace config.frameAttr */
              isDisabled = isDisabled === undefined ? true : isDisabled;
              if (data.content[i] === null) {
                  return '';
              }
              if (!isEmpty(config) && !isEmpty(config.frameClass)) {
                  frameClass += ' ' + config.frameClass;
              }
              out = data.template
                  .replace(/\{previewId}/g, previewId)
                  .replace(/\{frameClass}/g, frameClass)
                  .replace(/\{fileindex}/g, ind)
                  .replace(/\{content}/g, data.content[i])
                  .replace(/\{footer}/g, previewCache.footer(id, i, isDisabled));
              if (data.tags.length && data.tags[i]) {
                  out = replaceTags(out, data.tags[i]);
              }
              if (!isEmpty(config) && !isEmpty(config.frameAttr)) {
                  $tmp = $(document.createElement('div')).html(out);
                  $tmp.find('.file-preview-initial').attr(config.frameAttr);
                  out = $tmp.html();
                  $tmp.remove();
              }
              return out;
          },
          add: function (id, content, config, tags, append) {
              var data = $.extend(true, {}, previewCache.data[id]), index;
              if (!isArray(content)) {
                  content = content.split(data.delimiter);
              }
              if (append) {
                  index = data.content.push(content) - 1;
                  data.config[index] = config;
                  data.tags[index] = tags;
              } else {
                  index = content.length;
                  data.content = content;
                  data.config = config;
                  data.tags = tags;
              }
              previewCache.data[id] = data;
              return index;
          },
          set: function (id, content, config, tags, append) {
              var data = $.extend(true, {}, previewCache.data[id]), i, chk;
              if (!content || !content.length) {
                  return;
              }
              if (!isArray(content)) {
                  content = content.split(data.delimiter);
              }
              chk = content.filter(function (n) {
                  return n !== null;
              });
              if (!chk.length) {
                  return;
              }
              if (data.content === undefined) {
                  data.content = [];
              }
              if (data.config === undefined) {
                  data.config = [];
              }
              if (data.tags === undefined) {
                  data.tags = [];
              }
              if (append) {
                  for (i = 0; i < content.length; i++) {
                      if (content[i]) {
                          data.content.push(content[i]);
                      }
                  }
                  for (i = 0; i < config.length; i++) {
                      if (config[i]) {
                          data.config.push(config[i]);
                      }
                  }
                  for (i = 0; i < tags.length; i++) {
                      if (tags[i]) {
                          data.tags.push(tags[i]);
                      }
                  }
              } else {
                  data.content = content;
                  data.config = config;
                  data.tags = tags;
              }
              previewCache.data[id] = data;
          },
          unset: function (id, index) {
              var chk = previewCache.count(id);
              if (!chk) {
                  return;
              }
              if (chk === 1) {
                  previewCache.data[id].content = [];
                  previewCache.data[id].config = [];
                  return;
              }
              previewCache.data[id].content[index] = null;
              previewCache.data[id].config[index] = null;
          },
          out: function (id) {
              var html = '', data = previewCache.data[id], caption, len = previewCache.count(id, true);
              if (len === 0) {
                  return {content: '', caption: ''};
              }
              for (var i = 0; i < len; i++) {
                  html += previewCache.get(id, i);
              }
              caption = data.msg(previewCache.count(id));
              return {content: html, caption: caption};
          },
          footer: function (id, i, isDisabled) {
              var data = previewCache.data[id];
              isDisabled = isDisabled === undefined ? true : isDisabled;
              if (data.config.length === 0 || isEmpty(data.config[i])) {
                  return '';
              }
              var config = data.config[i],
                  caption = isSet('caption', config) ? config.caption : '',
                  width = isSet('width', config) ? config.width : 'auto',
                  url = isSet('url', config) ? config.url : false,
                  key = isSet('key', config) ? config.key : null,
                  disabled = (url === false) && isDisabled,
                  actions = data.isDelete ? data.actions(false, true, disabled, url, key) : '',
                  footer = data.footer.replace(/\{actions}/g, actions);
              return footer.replace(/\{caption}/g, caption)
                  .replace(/\{width}/g, width)
                  .replace(/\{indicator}/g, '')
                  .replace(/\{indicatorTitle}/g, '');
          }
      };
      getNum = function (num, def) {
          def = def || 0;
          if (typeof num === "number") {
              return num;
          }
          if (typeof num === "string") {
              num = parseFloat(num);
          }
          return isNaN(num) ? def : num;
      };
      hasFileAPISupport = function () {
          return window.File && window.FileReader;
      };
      hasDragDropSupport = function () {
          var div = document.createElement('div');
          /** @namespace div.draggable */
          /** @namespace div.ondragstart */
          /** @namespace div.ondrop */
          return !isIE(9) && !isEdge() && // Fix for MS Edge drag & drop support bug
              (div.draggable !== undefined || (div.ondragstart !== undefined && div.ondrop !== undefined));
      };
      hasFileUploadSupport = function () {
          return hasFileAPISupport() && window.FormData;
      };
      addCss = function ($el, css) {
          $el.removeClass(css).addClass(css);
      };
      STYLE_SETTING = 'style="width:{width};height:{height};"';
      OBJECT_PARAMS = '      <param name="controller" value="true" />\n' +
          '      <param name="allowFullScreen" value="true" />\n' +
          '      <param name="allowScriptAccess" value="always" />\n' +
          '      <param name="autoPlay" value="false" />\n' +
          '      <param name="autoStart" value="false" />\n' +
          '      <param name="quality" value="high" />\n';
      DEFAULT_PREVIEW = '<div class="file-preview-other">\n' +
          '   <span class="{previewFileIconClass}">{previewFileIcon}</span>\n' +
          '</div>';
      defaultFileActionSettings = {
          removeIcon: '<i class="glyphicon glyphicon-trash text-danger"></i>',
          removeClass: 'btn btn-xs btn-default',
          removeTitle: 'Remove file',
          uploadIcon: '<i class="glyphicon glyphicon-upload text-info"></i>',
          uploadClass: 'btn btn-xs btn-default',
          uploadTitle: 'Upload file',
          indicatorNew: '<i class="glyphicon glyphicon-hand-down text-warning"></i>',
          indicatorSuccess: '<i class="glyphicon glyphicon-ok-sign text-success"></i>',
          indicatorError: '<i class="glyphicon glyphicon-exclamation-sign text-danger"></i>',
          indicatorLoading: '<i class="glyphicon glyphicon-hand-up text-muted"></i>',
          indicatorNewTitle: 'Not uploaded yet',
          indicatorSuccessTitle: 'Uploaded',
          indicatorErrorTitle: 'Upload Error',
          indicatorLoadingTitle: 'Uploading ...'
      };
      tMain1 = '{preview}\n' +
          '<div class="kv-upload-progress hide"></div>\n' +
          '<div class="input-group {class}">\n' +
          '   {caption}\n' +
          '   <div class="input-group-btn">\n' +
          '       {remove}\n' +
          '       {cancel}\n' +
          '       {upload}\n' +
          '       {browse}\n' +
          '   </div>\n' +
          '</div>';
      tMain2 = '{preview}\n<div class="kv-upload-progress hide"></div>\n{remove}\n{cancel}\n{upload}\n{browse}\n';
      tPreview = '<div class="file-preview {class}">\n' +
          '    {close}' +
          '    <div class="{dropClass}">\n' +
          '    <div class="file-preview-thumbnails">\n' +
          '    </div>\n' +
          '    <div class="clearfix"></div>' +
          '    <div class="file-preview-status text-center text-success"></div>\n' +
          '    <div class="kv-fileinput-error"></div>\n' +
          '    </div>\n' +
          '</div>';
      tClose = '<div class="close fileinput-remove">&times;</div>\n';
      tIcon = '<span class="glyphicon glyphicon-file kv-caption-icon"></span>';
      tCaption = '<div tabindex="500" class="form-control file-caption {class}">\n' +
          '   <div class="file-caption-name"></div>\n' +
          '</div>\n';
      //noinspection HtmlUnknownAttribute
      tBtnDefault = '<button type="{type}" tabindex="500" title="{title}" class="{css}" {status}>{icon}{label}</button>';
      tBtnLink = '<a href="{href}" tabindex="500" title="{title}" class="{css}" {status}>{icon}{label}</a>';
      tBtnBrowse = '<div tabindex="500" class="{css}" {status}>{icon}{label}</div>';
      tModal = '<div id="{id}" class="file-preview-detail-modal modal fade" tabindex="-1">\n' +
          '  <div class="modal-dialog modal-lg">\n' +
          '    <div class="modal-content">\n' +
          '      <div class="modal-header">\n' +
          '        <button type="button" class="close" data-dismiss="modal" aria-hidden="true">&times;</button>\n' +
          '        <h3 class="modal-title">{heading} <small>{title}</small></h3>\n' +
          '      </div>\n' +
          '      <div class="modal-body">\n' +
          '           <pre>{body}</pre>\n' +
          '      </div>\n' +
          '    </div>\n' +
          '  </div>\n' +
          '</div>';
      tProgress = '<div class="progress">\n' +
          '    <div class="{class}" role="progressbar"' +
          ' aria-valuenow="{percent}" aria-valuemin="0" aria-valuemax="100" style="width:{percent}%;">\n' +
          '        {percent}%\n' +
          '     </div>\n' +
          '</div>';
      tFooter = '<div class="file-thumbnail-footer">\n' +
          '    <div class="file-footer-caption" title="{caption}">{caption}</div>\n' +
          '    {progress} {actions}\n' +
          '</div>';
      tActions = '<div class="file-actions">\n' +
          '    <div class="file-footer-buttons">\n' +
          '        {upload}{delete}{other}' +
          '    </div>\n' +
          '    <div class="file-upload-indicator" title="{indicatorTitle}">{indicator}</div>\n' +
          '    <div class="clearfix"></div>\n' +
          '</div>';
      tActionDelete = '<button type="button" class="kv-file-remove {removeClass}" ' +
          'title="{removeTitle}"{dataUrl}{dataKey}>{removeIcon}</button>\n';
      tActionUpload = '<button type="button" class="kv-file-upload {uploadClass}" title="{uploadTitle}">' +
          '   {uploadIcon}\n</button>\n';
      tZoom = '<button type="button" class="btn btn-default btn-xs btn-block" title="{zoomTitle}: {caption}" onclick="{dialog}">\n' +
          '   {zoomInd}\n' +
          '</button>\n';
      tGeneric = '<div class="file-preview-frame{frameClass}" id="{previewId}" data-fileindex="{fileindex}">\n' +
          '   {content}\n' +
          '   {footer}\n' +
          '</div>\n';
      tHtml = '<div class="file-preview-frame{frameClass}" id="{previewId}" data-fileindex="{fileindex}">\n' +
          '    <object class="file-object" data="{data}" type="{type}" width="{width}" height="{height}">\n' +
          '       ' + DEFAULT_PREVIEW + '\n' +
          '    </object>\n' +
          '   {footer}\n' +
          '</div>';
      tImage = '<div class="file-preview-frame{frameClass}" id="{previewId}" data-fileindex="{fileindex}">\n' +
          '   <img src="{data}" class="file-preview-image" title="{caption}" alt="{caption}" ' + STYLE_SETTING + '>\n' +
          '   {footer}\n' +
          '</div>\n';
      tText = '<div class="file-preview-frame{frameClass}" id="{previewId}" data-fileindex="{fileindex}">\n' +
          '   <pre class="file-preview-text" title="{caption}" ' + STYLE_SETTING + '>{data}</pre>\n' +
          '   {zoom}\n' +
          '   {footer}\n' +
          '</div>';
      tVideo = '<div class="file-preview-frame{frameClass}" id="{previewId}" data-fileindex="{fileindex}"' +
          ' title="{caption}" ' + STYLE_SETTING + '>\n' +
          '   <video width="{width}" height="{height}" controls>\n' +
          '       <source src="{data}" type="{type}">\n' +
          '       ' + DEFAULT_PREVIEW + '\n' +
          '   </video>\n' +
          '   {footer}\n' +
          '</div>\n';
      tAudio = '<div class="file-preview-frame{frameClass}" id="{previewId}" data-fileindex="{fileindex}"' +
          ' title="{caption}" ' + STYLE_SETTING + '>\n' +
          '   <audio controls>\n' +
          '       <source src="' + '{data}' + '" type="{type}">\n' +
          '       ' + DEFAULT_PREVIEW + '\n' +
          '   </audio>\n' +
          '   {footer}\n' +
          '</div>';
      tFlash = '<div class="file-preview-frame{frameClass}" id="{previewId}" data-fileindex="{fileindex}"' +
          ' title="{caption}" ' + STYLE_SETTING + '>\n' +
          '   <object class="file-object" type="application/x-shockwave-flash" width="{width}" height="{height}" data="{data}">\n' +
          OBJECT_PARAMS + '       ' + DEFAULT_PREVIEW + '\n' +
          '   </object>\n' +
          '   {footer}\n' +
          '</div>\n';
      tObject = '<div class="file-preview-frame{frameClass}" id="{previewId}" data-fileindex="{fileindex}"' +
          ' title="{caption}" ' + STYLE_SETTING + '>\n' +
          '   <object class="file-object" data="{data}" type="{type}" width="{width}" height="{height}">\n' +
          '       <param name="movie" value="{caption}" />\n' +
          OBJECT_PARAMS + '         ' + DEFAULT_PREVIEW + '\n' +
          '   </object>\n' +
          '   {footer}\n' +
          '</div>';
      tOther = '<div class="file-preview-frame{frameClass}" id="{previewId}" data-fileindex="{fileindex}"' +
          ' title="{caption}" ' + STYLE_SETTING + '>\n' +
          '   <div class="file-preview-other-frame">\n' +
          '   ' + DEFAULT_PREVIEW + '\n' +
          '   </div>\n' +
          '   <div class="file-preview-other-footer">{footer}</div>\n' +
          '</div>';
      defaultLayoutTemplates = {
          main1: tMain1,
          main2: tMain2,
          preview: tPreview,
          close: tClose,
          zoom: tZoom,
          icon: tIcon,
          caption: tCaption,
          modal: tModal,
          progress: tProgress,
          footer: tFooter,
          actions: tActions,
          actionDelete: tActionDelete,
          actionUpload: tActionUpload,
          btnDefault: tBtnDefault,
          btnLink: tBtnLink,
          btnBrowse: tBtnBrowse
      };
      defaultPreviewTemplates = {
          generic: tGeneric,
          html: tHtml,
          image: tImage,
          text: tText,
          video: tVideo,
          audio: tAudio,
          flash: tFlash,
          object: tObject,
          other: tOther
      };
      defaultPreviewTypes = ['image', 'html', 'text', 'video', 'audio', 'flash', 'object'];
      defaultPreviewSettings = {
          image: {width: "30px", height: "40px"},
          html: {width: "213px", height: "160px"},
          text: {width: "160px", height: "136px"},
          video: {width: "213px", height: "160px"},
          audio: {width: "213px", height: "80px"},
          flash: {width: "213px", height: "160px"},
          object: {width: "160px", height: "160px"},
          other: {width: "160px", height: "160px"}
      };
      defaultFileTypeSettings = {
          image: function (vType, vName) {
              return (vType !== undefined) ? vType.match('image.*') : vName.match(/\.(gif|png|jpe?g)$/i);
          },
          html: function (vType, vName) {
              return (vType !== undefined) ? vType === 'text/html' : vName.match(/\.(htm|html)$/i);
          },
          text: function (vType, vName) {
              return (vType !== undefined && vType.match('text.*')) || vName.match(/\.(txt|md|csv|nfo|ini|json|php|js|css)$/i);
          },
          video: function (vType, vName) {
              return (vType !== undefined && vType.match(/\.video\/(ogg|mp4|webm|3gp)$/i)) || vName.match(/\.(og?|mp4|webm|3gp)$/i);
          },
          audio: function (vType, vName) {
              return (vType !== undefined && vType.match(/\.audio\/(ogg|mp3|wav)$/i)) || vName.match(/\.(ogg|mp3|wav)$/i);
          },
          flash: function (vType, vName) {
              return (vType !== undefined && vType === 'application/x-shockwave-flash') || vName.match(/\.(swf)$/i);
          },
          object: function () {
              return true;
          },
          other: function () {
              return true;
          }
      };
      isEmpty = function (value, trim) {
          return value === undefined || value === null || value.length === 0 || (trim && $.trim(value) === '');
      };
      isArray = function (a) {
          return Array.isArray(a) || Object.prototype.toString.call(a) === '[object Array]';
      };
      isSet = function (needle, haystack) {
          return (typeof haystack === 'object' && needle in haystack);
      };
      getElement = function (options, param, value) {
          return (isEmpty(options) || isEmpty(options[param])) ? value : $(options[param]);
      };
      uniqId = function () {
          return Math.round(new Date().getTime() + (Math.random() * 100));
      };
      htmlEncode = function (str) {
          return str.replace(/&/g, '&amp;')
              .replace(/</g, '&lt;')
              .replace(/>/g, '&gt;')
              .replace(/"/g, '&quot;')
              .replace(/'/g, '&apos;');
      };
      replaceTags = function (str, tags) {
          var out = str;
          if (!tags) {
              return out;
          }
          $.each(tags, function (key, value) {
              if (typeof value === "function") {
                  value = value();
              }
              out = out.split(key).join(value);
          });
          return out;
      };
      //noinspection JSUnresolvedVariable
      objUrl = window.URL || window.webkitURL;
      FileInput = function (element, options) {
          var self = this;
          self.$element = $(element);
          if (!self.validate()) {
              return;
          }
          self.isPreviewable = hasFileAPISupport();
          self.isIE9 = isIE(9);
          self.isIE10 = isIE(10);
          if (self.isPreviewable || self.isIE9) {
              self.init(options);
              self.listen();
          } else {
              self.$element.removeClass('file-loading');
          }
      };
  
      FileInput.prototype = {
          constructor: FileInput,
          validate: function () {
              var self = this, $exception;
              if (self.$element.attr('type') === 'file') {
                  return true;
              }
              $exception = '<div class="help-block alert alert-warning">' +
                  '<h4>Invalid Input Type</h4>' +
                  'You must set an input <code>type = file</code> for <b>bootstrap-fileinput</b> plugin to initialize.' +
                  '</div>';
              self.$element.after($exception);
              return false;
          },
          init: function (options) {
              var self = this, $el = self.$element, t;
              $.each(options, function (key, value) {
                  switch (key) {
                      case 'minFileCount':
                      case 'maxFileCount':
                      case 'maxFileSize':
                          self[key] = getNum(value);
                          break;
                      default:
                          self[key] = value;
                          break;
                  }
              });
              self.fileInputCleared = false;
              self.fileBatchCompleted = true;
              if (!self.isPreviewable) {
                  self.showPreview = false;
              }
              self.uploadFileAttr = !isEmpty($el.attr('name')) ? $el.attr('name') : 'file_data';
              self.reader = null;
              self.formdata = {};
              self.clearStack();
              self.uploadCount = 0;
              self.uploadStatus = {};
              self.uploadLog = [];
              self.uploadAsyncCount = 0;
              self.loadedImages = [];
              self.totalImagesCount = 0;
              self.ajaxRequests = [];
              self.isError = false;
              self.ajaxAborted = false;
              self.cancelling = false;
              t = self.getLayoutTemplate('progress');
              self.progressTemplate = t.replace('{class}', self.progressClass);
              self.progressCompleteTemplate = t.replace('{class}', self.progressCompleteClass);
              self.dropZoneEnabled = hasDragDropSupport() && self.dropZoneEnabled;
              self.isDisabled = self.$element.attr('disabled') || self.$element.attr('readonly');
              self.isUploadable = hasFileUploadSupport() && !isEmpty(self.uploadUrl);
              self.slug = typeof options.slugCallback === "function" ? options.slugCallback : self.slugDefault;
              self.mainTemplate = self.showCaption ? self.getLayoutTemplate('main1') : self.getLayoutTemplate('main2');
              self.captionTemplate = self.getLayoutTemplate('caption');
              self.previewGenericTemplate = self.getPreviewTemplate('generic');
              if (self.resizeImage && (self.maxImageWidth || self.maxImageHeight)) {
                  self.imageCanvas = document.createElement('canvas');
                  self.imageCanvasContext = self.imageCanvas.getContext('2d');
              }
              if (isEmpty(self.$element.attr('id'))) {
                  self.$element.attr('id', uniqId());
              }
              if (self.$container === undefined) {
                  self.$container = self.createContainer();
              } else {
                  self.refreshContainer();
              }
              self.$progress = self.$container.find('.kv-upload-progress');
              self.$btnUpload = self.$container.find('.fileinput-upload');
              self.$captionContainer = getElement(options, 'elCaptionContainer', self.$container.find('.file-caption'));
              self.$caption = getElement(options, 'elCaptionText', self.$container.find('.file-caption-name'));
              self.$previewContainer = getElement(options, 'elPreviewContainer', self.$container.find('.file-preview'));
              self.$preview = getElement(options, 'elPreviewImage', self.$container.find('.file-preview-thumbnails'));
              self.$previewStatus = getElement(options, 'elPreviewStatus', self.$container.find('.file-preview-status'));
              self.$errorContainer = getElement(options, 'elErrorContainer',
                  self.$previewContainer.find('.kv-fileinput-error'));
              if (!isEmpty(self.msgErrorClass)) {
                  addCss(self.$errorContainer, self.msgErrorClass);
              }
              self.$errorContainer.hide();
              self.fileActionSettings = $.extend(defaultFileActionSettings, options.fileActionSettings);
              self.previewInitId = "preview-" + uniqId();
              self.id = self.$element.attr('id');
              previewCache.init(self);
              self.initPreview(true);
              self.initPreviewDeletes();
              self.options = options;
              self.setFileDropZoneTitle();
              self.$element.removeClass('file-loading');
              if (self.$element.attr('disabled')) {
                  self.disable();
              }
          },
          parseError: function (jqXHR, errorThrown, fileName) {
              var self = this, errMsg = $.trim(errorThrown + ''),
                  dot = errMsg.slice(-1) === '.' ? '' : '.',
                  text = jqXHR.responseJSON !== undefined && jqXHR.responseJSON.error !== undefined ?
                      jqXHR.responseJSON.error : jqXHR.responseText;
              if (self.cancelling && self.msgUploadAborted) {
                  errMsg = self.msgUploadAborted;
              }
              if (self.showAjaxErrorDetails && text) {
                  text = $.trim(text.replace(/\n\s*\n/g, '\n'));
                  text = text.length > 0 ? '<pre>' + text + '</pre>' : '';
                  errMsg += dot + text;
              } else {
                  errMsg += dot;
              }
              self.cancelling = false;
              return fileName ? '<b>' + fileName + ': </b>' + errMsg : errMsg;
          },
          raise: function (event, params) {
              var self = this, e = $.Event(event);
              if (params !== undefined) {
                  self.$element.trigger(e, params);
              } else {
                  self.$element.trigger(e);
              }
              if (e.isDefaultPrevented()) {
                  return false;
              }
              if (!e.result) {
                  return e.result;
              }
              switch (event) {
                  // ignore these events
                  case 'filebatchuploadcomplete':
                  case 'filebatchuploadsuccess':
                  case 'fileuploaded':
                  case 'fileclear':
                  case 'filecleared':
                  case 'filereset':
                  case 'fileerror':
                  case 'filefoldererror':
                  case 'fileuploaderror':
                  case 'filebatchuploaderror':
                  case 'filedeleteerror':
                  case 'filecustomerror':
                  case 'filesuccessremove':
                      break;
                  // receive data response via `filecustomerror` event`
                  default:
                      self.ajaxAborted = e.result;
                      break;
              }
              return true;
          },
          getLayoutTemplate: function (t) {
              var self = this,
                  template = isSet(t, self.layoutTemplates) ? self.layoutTemplates[t] : defaultLayoutTemplates[t];
              if (isEmpty(self.customLayoutTags)) {
                  return template;
              }
              return replaceTags(template, self.customLayoutTags);
          },
          getPreviewTemplate: function (t) {
              var self = this,
                  template = isSet(t, self.previewTemplates) ? self.previewTemplates[t] : defaultPreviewTemplates[t];
              if (isEmpty(self.customPreviewTags)) {
                  return template;
              }
              return replaceTags(template, self.customPreviewTags);
          },
          parseFilePreviewIcon: function (content, fname) {
              var self = this, ext, icn = self.previewFileIcon;
              if (fname && fname.indexOf('.') > -1) {
                  ext = fname.split('.').pop();
                  if (self.previewFileIconSettings && self.previewFileIconSettings[ext]) {
                      icn = self.previewFileIconSettings[ext];
                  }
                  if (self.previewFileExtSettings) {
                      $.each(self.previewFileExtSettings, function (key, func) {
                          if (self.previewFileIconSettings[key] && func(ext)) {
                              icn = self.previewFileIconSettings[key];
                          }
                      });
                  }
              }
              if (content.indexOf('{previewFileIcon}') > -1) {
                  return content.replace(/\{previewFileIconClass}/g, self.previewFileIconClass).replace(/\{previewFileIcon}/g, icn);
              }
              return content;
          },
          getOutData: function (jqXHR, responseData, filesData) {
              var self = this;
              jqXHR = jqXHR || {};
              responseData = responseData || {};
              filesData = filesData || self.filestack.slice(0) || {};
              return {
                  form: self.formdata,
                  files: filesData,
                  filenames: self.filenames,
                  extra: self.getExtraData(),
                  response: responseData,
                  reader: self.reader,
                  jqXHR: jqXHR
              };
          },
          listen: function () {
              var self = this, $el = self.$element, $cap = self.$captionContainer, $btnFile = self.$btnFile,
                  $form = $el.closest('form'), $cont = self.$container;
              handler($el, 'change', $.proxy(self.change, self));
              handler($btnFile, 'click', function () {
                  self.raise('filebrowse');
                  if (self.isError && !self.isUploadable) {
                      self.clear();
                  }
                  $cap.focus();
              });
              handler($form, 'reset', $.proxy(self.reset, self));
              handler($cont.find('.fileinput-remove:not([disabled])'), 'click', $.proxy(self.clear, self));
              handler($cont.find('.fileinput-cancel'), 'click', $.proxy(self.cancel, self));
              if (self.isUploadable && self.dropZoneEnabled && self.showPreview) {
                  self.initDragDrop();
              }
              if (!self.isUploadable) {
                  handler($form, 'submit', $.proxy(self.submitForm, self));
              }
              handler(self.$container.find('.fileinput-upload'), 'click', function (e) {
                  var $btn = $(this), $form, isEnabled = !$btn.hasClass('disabled') && isEmpty($btn.attr('disabled'));
                  if (!self.isUploadable) {
                      if (isEnabled && $btn.attr('type') !== 'submit') {
                          $form = $btn.closest('form');
                          // downgrade to normal form submit if possible
                          if ($form.length) {
                              $form.trigger('submit');
                          }
                          e.preventDefault();
                      }
                      return;
                  }
                  e.preventDefault();
                  if (isEnabled) {
                      self.upload();
                  }
              });
          },
          submitForm: function () {
              var self = this, $el = self.$element, files = $el.get(0).files;
              if (files && self.minFileCount > 0 && self.getFileCount(files.length) < self.minFileCount) {
                  self.noFilesError({});
                  return false;
              }
              return !self.abort({});
          },
          abort: function (params) {
              var self = this, data;
              if (self.ajaxAborted && typeof self.ajaxAborted === "object" && self.ajaxAborted.message !== undefined) {
                  data = $.extend(self.getOutData(), params);
                  data.abortData = self.ajaxAborted.data || {};
                  data.abortMessage = self.ajaxAborted.message;
                  self.cancel();
                  self.setProgress(100);
                  self.showUploadError(self.ajaxAborted.message, data, 'filecustomerror');
                  return true;
              }
              return false;
          },
          noFilesError: function (params) {
              var self = this, label = self.minFileCount > 1 ? self.filePlural : self.fileSingle,
                  msg = self.msgFilesTooLess.replace('{n}', self.minFileCount).replace('{files}', label),
                  $error = self.$errorContainer;
              self.addError(msg);
              self.isError = true;
              self.updateFileDetails(0);
              $error.fadeIn(800);
              self.raise('fileerror', [params]);
              self.clearFileInput();
              addCss(self.$container, 'has-error');
          },
          setProgress: function (p, $el) {
              var self = this, pct = Math.min(p, 100),
                  template = pct < 100 ? self.progressTemplate : self.progressCompleteTemplate;
              $el = $el || self.$progress;
              if (!isEmpty(template)) {
                  $el.html(template.replace(/\{percent}/g, pct));
              }
          },
          lock: function () {
              var self = this;
              self.resetErrors();
              self.disable();
              if (self.showRemove) {
                  addCss(self.$container.find('.fileinput-remove'), 'hide');
              }
              if (self.showCancel) {
                  self.$container.find('.fileinput-cancel').removeClass('hide');
              }
              self.raise('filelock', [self.filestack, self.getExtraData()]);
          },
          unlock: function (reset) {
              var self = this;
              if (reset === undefined) {
                  reset = true;
              }
              self.enable();
              if (self.showCancel) {
                  addCss(self.$container.find('.fileinput-cancel'), 'hide');
              }
              if (self.showRemove) {
                  self.$container.find('.fileinput-remove').removeClass('hide');
              }
              if (reset) {
                  self.resetFileStack();
              }
              self.raise('fileunlock', [self.filestack, self.getExtraData()]);
          },
          resetFileStack: function () {
              var self = this, i = 0, newstack = [], newnames = [];
              self.getThumbs().each(function () {
                  var $thumb = $(this), ind = $thumb.attr('data-fileindex'),
                      file = self.filestack[ind];
                  if (ind === -1) {
                      return;
                  }
                  if (file !== undefined) {
                      newstack[i] = file;
                      newnames[i] = self.getFileName(file);
                      $thumb.attr({
                          'id': self.previewInitId + '-' + i,
                          'data-fileindex': i
                      });
                      i++;
                  } else {
                      $thumb.attr({
                          'id': 'uploaded-' + uniqId(),
                          'data-fileindex': '-1'
                      });
                  }
              });
              self.filestack = newstack;
              self.filenames = newnames;
          },
          destroy: function () {
              var self = this, $cont = self.$container;
              $cont.find('.file-drop-zone').off();
              self.$element.insertBefore($cont).off('.fileinput').removeData();
              $cont.off().remove();
          },
          refresh: function (options) {
              var self = this, $el = self.$element;
              options = options ? $.extend(self.options, options) : self.options;
              self.destroy();
              $el.fileinput(options);
              if ($el.val()) {
                  $el.trigger('change.fileinput');
              }
          },
          initDragDrop: function () {
              var self = this, $zone = self.$container.find('.file-drop-zone'),
                  allEvents = 'dragenter.fileinput dragover.fileinput drop.fileinput';
              handler($zone, 'dragenter.fileinput dragover.fileinput', function (e) {
                  var hasFiles = $.inArray('Files', e.originalEvent.dataTransfer.types) > -1;
                  e.stopPropagation();
                  e.preventDefault();
                  if (self.isDisabled || !hasFiles) {
                      e.originalEvent.dataTransfer.effectAllowed = 'none';
                      e.originalEvent.dataTransfer.dropEffect = 'none';
                      return;
                  }
                  addCss($(this), 'file-highlighted');
              }, true);
              handler($zone, 'dragleave', function (e) {
                  e.stopPropagation();
                  e.preventDefault();
                  if (self.isDisabled) {
                      return;
                  }
                  $(this).removeClass('file-highlighted');
              });
              handler($zone, 'drop', function (e) {
                  e.preventDefault();
                  /** @namespace e.originalEvent.dataTransfer */
                  if (self.isDisabled || isEmpty(e.originalEvent.dataTransfer.files)) {
                      return;
                  }
                  self.change(e, 'dragdrop');
                  $(this).removeClass('file-highlighted');
              });
              handler($(document), allEvents, function (e) {
                  e.stopPropagation();
                  e.preventDefault();
              }, true);
          },
          setFileDropZoneTitle: function () {
              var self = this, $zone = self.$container.find('.file-drop-zone');
              $zone.find('.' + self.dropZoneTitleClass).remove();
              if (!self.isUploadable || !self.showPreview || $zone.length === 0 || self.getFileStack().length > 0 || !self.dropZoneEnabled) {
                  return;
              }
              if ($zone.find('.file-preview-frame').length === 0 && isEmpty(self.defaultPreviewContent)) {
                  $zone.prepend('<div class="' + self.dropZoneTitleClass + '">' + self.dropZoneTitle + '</div>');
              }
              self.$container.removeClass('file-input-new');
              addCss(self.$container, 'file-input-ajax-new');
          },
          errorsExist: function () {
              var self = this, $err;
              if (self.$errorContainer.find('li').length) {
                  return true;
              }
              $err = $(document.createElement('div')).html(self.$errorContainer.html());
              $err.find('span.kv-error-close').remove();
              $err.find('ul').remove();
              return $.trim($err.text()).length ? true : false;
          },
          getMsgSelected: function (n) {
              var self = this, strFiles = n === 1 ? self.fileSingle : self.filePlural;
              return self.msgSelected.replace('{n}', n).replace('{files}', strFiles);
          },
          renderThumbProgress: function () {
              return '<div class="file-thumb-progress hide">' + this.progressTemplate.replace(/\{percent}/g, '0') + '</div>';
          },
          renderFileFooter: function (caption, width) {
              var self = this, config = self.fileActionSettings, footer, out, template = self.getLayoutTemplate('footer');
              if (self.isUploadable) {
                  footer = template.replace(/\{actions}/g, self.renderFileActions(true, true, false, false, false));
                  out = footer.replace(/\{caption}/g, caption)
                      .replace(/\{width}/g, width)
                      .replace(/\{progress}/g, self.renderThumbProgress())
                      .replace(/\{indicator}/g, config.indicatorNew)
                      .replace(/\{indicatorTitle}/g, config.indicatorNewTitle);
              } else {
                  out = template.replace(/\{actions}/g, '')
                      .replace(/\{caption}/g, caption)
                      .replace(/\{progress}/g, '')
                      .replace(/\{width}/g, width)
                      .replace(/\{indicator}/g, '')
                      .replace(/\{indicatorTitle}/g, '');
              }
              out = replaceTags(out, self.previewThumbTags);
              return out;
          },
          renderFileActions: function (showUpload, showDelete, disabled, url, key) {
              if (!showUpload && !showDelete) {
                  return '';
              }
              var self = this,
                  vUrl = url === false ? '' : ' data-url="' + url + '"',
                  vKey = key === false ? '' : ' data-key="' + key + '"',
                  btnDelete = self.getLayoutTemplate('actionDelete'),
                  btnUpload = '',
                  template = self.getLayoutTemplate('actions'),
                  otherButtons = self.otherActionButtons.replace(/\{dataKey}/g, vKey),
                  config = self.fileActionSettings,
                  removeClass = disabled ? config.removeClass + ' disabled' : config.removeClass;
              btnDelete = btnDelete
                  .replace(/\{removeClass}/g, removeClass)
                  .replace(/\{removeIcon}/g, config.removeIcon)
                  .replace(/\{removeTitle}/g, config.removeTitle)
                  .replace(/\{dataUrl}/g, vUrl)
                  .replace(/\{dataKey}/g, vKey);
              if (showUpload) {
                  btnUpload = self.getLayoutTemplate('actionUpload')
                      .replace(/\{uploadClass}/g, config.uploadClass)
                      .replace(/\{uploadIcon}/g, config.uploadIcon)
                      .replace(/\{uploadTitle}/g, config.uploadTitle);
              }
              return template
                  .replace(/\{delete}/g, btnDelete)
                  .replace(/\{upload}/g, btnUpload)
                  .replace(/\{other}/g, otherButtons);
          },
          setThumbStatus: function ($thumb, status) {
              var self = this;
              if (!self.showPreview) {
                  return;
              }
              var icon = 'indicator' + status, msg = icon + 'Title',
                  css = 'file-preview-' + status.toLowerCase(),
                  $indicator = $thumb.find('.file-upload-indicator'),
                  config = self.fileActionSettings;
              $thumb.removeClass('file-preview-success file-preview-error file-preview-loading');
              if (status === 'Error') {
                  $thumb.find('.kv-file-upload').attr('disabled', true);
              }
              $indicator.html(config[icon]);
              $indicator.attr('title', config[msg]);
              $thumb.addClass(css);
          },
          clearPreview: function () {
              var self = this, $thumbs = !self.showUploadedThumbs ? self.$preview.find('.file-preview-frame') :
                  self.$preview.find('.file-preview-frame:not(.file-preview-success)');
              $thumbs.remove();
              if (!self.$preview.find('.file-preview-frame').length || !self.showPreview) {
                  self.resetUpload();
              }
              self.validateDefaultPreview();
          },
          initPreview: function (isInit) {
              var self = this, cap = self.initialCaption || '', out;
              if (!previewCache.count(self.id)) {
                  self.clearPreview();
                  if (isInit) {
                      self.setCaption(cap);
                  } else {
                      self.initCaption();
                  }
                  return;
              }
              out = previewCache.out(self.id);
              cap = isInit && self.initialCaption ? self.initialCaption : out.caption;
              self.$preview.html(out.content);
              self.setCaption(cap);
              if (!isEmpty(out.content)) {
                  self.$container.removeClass('file-input-new');
              }
          },
          initPreviewDeletes: function () {
              var self = this, deleteExtraData = self.deleteExtraData || {},
                  resetProgress = function () {
                      var hasFiles = self.isUploadable ? previewCache.count(self.id) : self.$element.get(0).files.length;
                      if (self.$preview.find('.kv-file-remove').length === 0 && !hasFiles) {
                          self.reset();
                          self.initialCaption = '';
                      }
                  };
  
              self.$preview.find('.kv-file-remove').each(function () {
                  var $el = $(this), vUrl = $el.data('url') || self.deleteUrl, vKey = $el.data('key');
                  if (isEmpty(vUrl) || vKey === undefined) {
                      return;
                  }
                  var $frame = $el.closest('.file-preview-frame'), cache = previewCache.data[self.id],
                      settings, params, index = $frame.data('fileindex'), config, extraData;
                  index = parseInt(index.replace('init_', ''));
                  config = isEmpty(cache.config) && isEmpty(cache.config[index]) ? null : cache.config[index];
                  extraData = isEmpty(config) || isEmpty(config.extra) ? deleteExtraData : config.extra;
                  if (typeof extraData === "function") {
                      extraData = extraData();
                  }
                  params = {id: $el.attr('id'), key: vKey, extra: extraData};
                  settings = $.extend({
                      url: vUrl,
                      type: 'POST',
                      dataType: 'json',
                      data: $.extend({key: vKey}, extraData),
                      beforeSend: function (jqXHR) {
                          self.ajaxAborted = false;
                          self.raise('filepredelete', [vKey, jqXHR, extraData]);
                          if (self.ajaxAborted) {
                              jqXHR.abort();
                          } else {
                              addCss($frame, 'file-uploading');
                              addCss($el, 'disabled');
                          }
                      },
                      success: function (data, textStatus, jqXHR) {
                          var n, cap;
                          if (isEmpty(data) || isEmpty(data.error)) {
                              previewCache.unset(self.id, index);
                              n = previewCache.count(self.id);
                              cap = n > 0 ? self.getMsgSelected(n) : '';
                              self.raise('filedeleted', [vKey, jqXHR, extraData]);
                              self.setCaption(cap);
                          } else {
                              params.jqXHR = jqXHR;
                              params.response = data;
                              self.showError(data.error, params, 'filedeleteerror');
                              $frame.removeClass('file-uploading');
                              $el.removeClass('disabled');
                              resetProgress();
                              return;
                          }
                          $frame.removeClass('file-uploading').addClass('file-deleted');
                          $frame.fadeOut('slow', function () {
                              self.clearObjects($frame);
                              $frame.remove();
                              resetProgress();
                              if (!n && self.getFileStack().length === 0) {
                                  self.setCaption('');
                                  self.reset();
                              }
                          });
                      },
                      error: function (jqXHR, textStatus, errorThrown) {
                          var errMsg = self.parseError(jqXHR, errorThrown);
                          params.jqXHR = jqXHR;
                          params.response = {};
                          self.showError(errMsg, params, 'filedeleteerror');
                          $frame.removeClass('file-uploading');
                          resetProgress();
                      }
                  }, self.ajaxDeleteSettings);
                  handler($el, 'click', function () {
                      if (!self.validateMinCount()) {
                          return false;
                      }
                      $.ajax(settings);
                  });
              });
          },
          clearObjects: function ($el) {
              $el.find('video audio').each(function () {
                  this.pause();
                  $(this).remove();
              });
              $el.find('img object div').each(function () {
                  $(this).remove();
              });
          },
          clearFileInput: function () {
              var self = this, $el = self.$element, $srcFrm, $tmpFrm, $tmpEl;
              if (isEmpty($el.val())) {
                  return;
              }
              // Fix for IE ver < 11, that does not clear file inputs
              // Requires a sequence of steps to prevent IE crashing but
              // still allow clearing of the file input.
              if (self.isIE9 || self.isIE10) {
                  $srcFrm = $el.closest('form');
                  $tmpFrm = $(document.createElement('form'));
                  $tmpEl = $(document.createElement('div'));
                  $el.before($tmpEl);
                  if ($srcFrm.length) {
                      $srcFrm.after($tmpFrm);
                  } else {
                      $tmpEl.after($tmpFrm);
                  }
                  $tmpFrm.append($el).trigger('reset');
                  $tmpEl.before($el).remove();
                  $tmpFrm.remove();
              } else { // normal input clear behavior for other sane browsers
                  $el.val('');
              }
              self.fileInputCleared = true;
          },
          resetUpload: function () {
              var self = this;
              self.uploadCache = {content: [], config: [], tags: [], append: true};
              self.uploadCount = 0;
              self.uploadStatus = {};
              self.uploadLog = [];
              self.uploadAsyncCount = 0;
              self.loadedImages = [];
              self.totalImagesCount = 0;
              self.$btnUpload.removeAttr('disabled');
              self.setProgress(0);
              addCss(self.$progress, 'hide');
              self.resetErrors(false);
              self.ajaxAborted = false;
              self.ajaxRequests = [];
              self.resetCanvas();
          },
          resetCanvas: function () {
              var self = this;
              if (self.canvas && self.imageCanvasContext) {
                  self.imageCanvasContext.clearRect(0, 0, self.canvas.width, self.canvas.height);
              }
          },
          cancel: function () {
              var self = this, xhr = self.ajaxRequests, len = xhr.length, i;
              if (len > 0) {
                  for (i = 0; i < len; i += 1) {
                      self.cancelling = true;
                      xhr[i].abort();
                  }
              }
              self.getThumbs().each(function () {
                  var $thumb = $(this), ind = $thumb.attr('data-fileindex');
                  $thumb.removeClass('file-uploading');
                  if (self.filestack[ind] !== undefined) {
                      $thumb.find('.kv-file-upload').removeClass('disabled').removeAttr('disabled');
                      $thumb.find('.kv-file-remove').removeClass('disabled').removeAttr('disabled');
                  }
                  self.unlock();
              });
          },
          cleanMemory: function ($thumb) {
              var data = $thumb.is('img') ? $thumb.attr('src') : $thumb.find('source').attr('src');
              /** @namespace objUrl.revokeObjectURL */
              objUrl.revokeObjectURL(data);
          },
          hasInitialPreview: function () {
              var self = this;
              return !self.overwriteInitial && previewCache.count(self.id);
          },
          clear: function () {
              var self = this, cap;
              self.$btnUpload.removeAttr('disabled');
              self.getThumbs().find('video,audio,img').each(function () {
                  self.cleanMemory($(this));
              });
              self.resetUpload();
              self.clearStack();
              self.clearFileInput();
              self.resetErrors(true);
              self.raise('fileclear');
              if (self.hasInitialPreview()) {
                  self.showFileIcon();
                  self.resetPreview();
                  self.initPreviewDeletes();
                  self.$container.removeClass('file-input-new');
              } else {
                  self.getThumbs().each(function () {
                      self.clearObjects($(this));
                  });
                  if (self.isUploadable) {
                      previewCache.data[self.id] = {};
                  }
                  self.$preview.html('');
                  cap = (!self.overwriteInitial && self.initialCaption.length > 0) ? self.initialCaption : '';
                  self.setCaption(cap);
                  self.$caption.attr('title', '');
                  addCss(self.$container, 'file-input-new');
                  self.validateDefaultPreview();
              }
              if (self.$container.find('.file-preview-frame').length === 0) {
                  if (!self.initCaption()) {
                      self.$captionContainer.find('.kv-caption-icon').hide();
                  }
              }
              self.hideFileIcon();
              self.raise('filecleared');
              self.$captionContainer.focus();
              self.setFileDropZoneTitle();
          },
          resetPreview: function () {
              var self = this, out, cap;
              if (previewCache.count(self.id)) {
                  out = previewCache.out(self.id);
                  self.$preview.html(out.content);
                  cap = self.initialCaption ? self.initialCaption : out.caption;
                  self.setCaption(cap);
              } else {
                  self.clearPreview();
                  self.initCaption();
              }
          },
          clearDefaultPreview: function () {
              var self = this;
              self.$preview.find('.file-default-preview').remove();
          },
          validateDefaultPreview: function () {
              var self = this;
              if (!self.showPreview || isEmpty(self.defaultPreviewContent)) {
                  return;
              }
              self.$preview.html('<div class="file-default-preview">' + self.defaultPreviewContent + '</div>');
              self.$container.removeClass('file-input-new');
          },
          resetPreviewThumbs: function (isAjax) {
              var self = this, out;
              if (isAjax) {
                  self.clearPreview();
                  self.clearStack();
                  return;
              }
              if (self.hasInitialPreview()) {
                  out = previewCache.out(self.id);
                  self.$preview.html(out.content);
                  self.setCaption(out.caption);
                  self.initPreviewDeletes();
              } else {
                  self.clearPreview();
              }
          },
          reset: function () {
              var self = this;
              self.resetPreview();
              self.$container.find('.fileinput-filename').text('');
              self.raise('filereset');
              addCss(self.$container, 'file-input-new');
              if (self.$preview.find('.file-preview-frame').length || self.isUploadable && self.dropZoneEnabled) {
                  self.$container.removeClass('file-input-new');
              }
              self.setFileDropZoneTitle();
              self.clearStack();
              self.formdata = {};
          },
          disable: function () {
              var self = this;
              self.isDisabled = true;
              self.raise('filedisabled');
              self.$element.attr('disabled', 'disabled');
              self.$container.find(".kv-fileinput-caption").addClass("file-caption-disabled");
              self.$container.find(".btn-file, .fileinput-remove, .fileinput-upload, .file-preview-frame button").attr("disabled",
                  true);
              self.initDragDrop();
          },
          enable: function () {
              var self = this;
              self.isDisabled = false;
              self.raise('fileenabled');
              self.$element.removeAttr('disabled');
              self.$container.find(".kv-fileinput-caption").removeClass("file-caption-disabled");
              self.$container.find(".btn-file, .fileinput-remove, .fileinput-upload, .file-preview-frame button").removeAttr("disabled");
              self.initDragDrop();
          },
          getThumbs: function (css) {
              css = css || '';
              return this.$preview.find('.file-preview-frame:not(.file-preview-initial)' + css);
          },
          getExtraData: function (previewId, index) {
              var self = this, data = self.uploadExtraData;
              if (typeof self.uploadExtraData === "function") {
                  data = self.uploadExtraData(previewId, index);
              }
              return data;
          },
          uploadExtra: function (previewId, index) {
              var self = this, data = self.getExtraData(previewId, index);
              if (data.length === 0) {
                  return;
              }
              $.each(data, function (key, value) {
                  self.formdata.append(key, value);
              });
          },
          setAsyncUploadStatus: function (previewId, pct, total) {
              var self = this, sum = 0;
              self.setProgress(pct, $('#' + previewId).find('.file-thumb-progress'));
              self.uploadStatus[previewId] = pct;
              $.each(self.uploadStatus, function (key, value) {
                  sum += value;
              });
              self.setProgress(Math.ceil(sum / total));
  
          },
          initXhr: function (xhrobj, previewId, fileCount) {
              var self = this;
              if (xhrobj.upload) {
                  xhrobj.upload.addEventListener('progress', function (event) {
                      var pct = 0, position = event.loaded || event.position, total = event.total;
                      /** @namespace event.lengthComputable */
                      if (event.lengthComputable) {
                          pct = Math.ceil(position / total * 100);
                      }
                      if (previewId) {
                          self.setAsyncUploadStatus(previewId, pct, fileCount);
                      } else {
                          self.setProgress(Math.ceil(pct));
                      }
                  }, false);
              }
              return xhrobj;
          },
          ajaxSubmit: function (fnBefore, fnSuccess, fnComplete, fnError, previewId, index) {
              var self = this, settings;
              self.raise('filepreajax', [previewId, index]);
              self.uploadExtra(previewId, index);
              settings = $.extend({
                  xhr: function () {
                      var xhrobj = $.ajaxSettings.xhr();
                      return self.initXhr(xhrobj, previewId, self.getFileStack().length);
                  },
                  url: self.uploadUrl,
                  type: 'POST',
                  dataType: 'json',
                  data: self.formdata,
                  cache: false,
                  processData: false,
                  contentType: false,
                  beforeSend: fnBefore,
                  success: fnSuccess,
                  complete: fnComplete,
                  error: fnError
              }, self.ajaxSettings);
              self.ajaxRequests.push($.ajax(settings));
          },
          initUploadSuccess: function (out, $thumb, allFiles) {
              var self = this, append, data, index, $newThumb, content, config, tags, i;
              if (!self.showPreview || typeof out !== 'object' || $.isEmptyObject(out)) {
                  return;
              }
              if (out.initialPreview !== undefined && out.initialPreview.length > 0) {
                  self.hasInitData = true;
                  content = out.initialPreview || [];
                  config = out.initialPreviewConfig || [];
                  tags = out.initialPreviewThumbTags || [];
                  append = out.append === undefined || out.append ? true : false;
                  self.overwriteInitial = false;
                  if ($thumb !== undefined) {
                      if (!allFiles) {
                          index = previewCache.add(self.id, content, config[0], tags[0], append);
                          data = previewCache.get(self.id, index, false);
                          $newThumb = $(data).hide();
                          $thumb.after($newThumb).fadeOut('slow', function () {
                              $newThumb.fadeIn('slow').css('display:inline-block');
                              self.initPreviewDeletes();
                              self.clearFileInput();
                              $thumb.remove();
                          });
                      } else {
                          i = $thumb.attr('data-fileindex');
                          self.uploadCache.content[i] = content[0];
                          self.uploadCache.config[i] = config[0];
                          self.uploadCache.tags[i] = tags[0];
                          self.uploadCache.append = append;
                      }
                  } else {
                      previewCache.set(self.id, content, config, tags, append);
                      self.initPreview();
                      self.initPreviewDeletes();
                  }
              }
          },
          initSuccessThumbs: function () {
              var self = this;
              if (!self.showPreview) {
                  return;
              }
              self.getThumbs('.file-preview-success').each(function () {
                  var $thumb = $(this), $remove = $thumb.find('.kv-file-remove');
                  $remove.removeAttr('disabled');
                  handler($remove, 'click', function () {
                      var out = self.raise('filesuccessremove', [$thumb.attr('id'), $thumb.data('fileindex')]);
                      self.cleanMemory($thumb);
                      if (out === false) {
                          return;
                      }
                      $thumb.fadeOut('slow', function () {
                          $thumb.remove();
                          if (!self.$preview.find('.file-preview-frame').length) {
                              self.reset();
                          }
                      });
                  });
              });
          },
          checkAsyncComplete: function () {
              var self = this, previewId, i;
              for (i = 0; i < self.filestack.length; i++) {
                  if (self.filestack[i]) {
                      previewId = self.previewInitId + "-" + i;
                      if ($.inArray(previewId, self.uploadLog) === -1) {
                          return false;
                      }
                  }
              }
              return (self.uploadAsyncCount === self.uploadLog.length);
          },
          uploadSingle: function (i, files, allFiles) {
              var self = this, total = self.getFileStack().length, formdata = new FormData(), outData,
                  previewId = self.previewInitId + "-" + i, $thumb, chkComplete, $btnUpload, $btnDelete,
                  hasPostData = self.filestack.length > 0 || !$.isEmptyObject(self.uploadExtraData),
                  fnBefore, fnSuccess, fnComplete, fnError, updateUploadLog, params = {id: previewId, index: i};
              self.formdata = formdata;
              if (self.showPreview) {
                  $thumb = $('#' + previewId + ':not(.file-preview-initial)');
                  $btnUpload = $thumb.find('.kv-file-upload');
                  $btnDelete = $thumb.find('.kv-file-remove');
                  $('#' + previewId).find('.file-thumb-progress').removeClass('hide');
              }
              if (total === 0 || !hasPostData || ($btnUpload && $btnUpload.hasClass('disabled')) || self.abort(params)) {
                  return;
              }
              updateUploadLog = function (i, previewId) {
                  self.updateStack(i, undefined);
                  self.uploadLog.push(previewId);
                  if (self.checkAsyncComplete()) {
                      self.fileBatchCompleted = true;
                  }
              };
              chkComplete = function () {
                  if (!self.fileBatchCompleted) {
                      return;
                  }
                  setTimeout(function () {
                      if (self.showPreview) {
                          previewCache.set(
                              self.id,
                              self.uploadCache.content,
                              self.uploadCache.config,
                              self.uploadCache.tags,
                              self.uploadCache.append
                          );
                          if (self.hasInitData) {
                              self.initPreview();
                              self.initPreviewDeletes();
                          }
                      }
                      self.unlock();
                      self.clearFileInput();
                      self.raise('filebatchuploadcomplete', [self.filestack, self.getExtraData()]);
                      self.uploadCount = 0;
                      self.uploadStatus = {};
                      self.uploadLog = [];
                      self.setProgress(100);
                  }, 100);
              };
              fnBefore = function (jqXHR) {
                  outData = self.getOutData(jqXHR);
                  self.fileBatchCompleted = false;
                  if (self.showPreview) {
                      if (!$thumb.hasClass('file-preview-success')) {
                          self.setThumbStatus($thumb, 'Loading');
                          addCss($thumb, 'file-uploading');
                      }
                      $btnUpload.attr('disabled', true);
                      $btnDelete.attr('disabled', true);
                  }
                  if (!allFiles) {
                      self.lock();
                  }
                  self.raise('filepreupload', [outData, previewId, i]);
                  params = $.extend(params, outData);
                  if (self.abort(params)) {
                      jqXHR.abort();
                      self.setProgress(100);
                  }
              };
              fnSuccess = function (data, textStatus, jqXHR) {
                  outData = self.getOutData(jqXHR, data);
                  params = $.extend(params, outData);
                  setTimeout(function () {
                      if (isEmpty(data) || isEmpty(data.error)) {
                          if (self.showPreview) {
                              self.setThumbStatus($thumb, 'Success');
                              $btnUpload.hide();
                              self.initUploadSuccess(data, $thumb, allFiles);
                          }
                          self.raise('fileuploaded', [outData, previewId, i]);
                          if (!allFiles) {
                              self.updateStack(i, undefined);
                          } else {
                              updateUploadLog(i, previewId);
                          }
                      } else {
                          self.setThumbStatus($thumb, 'Error');
                          self.showUploadError(data.error, params);
                          if (allFiles) {
                              updateUploadLog(i, previewId);
                          }
                      }
                  }, 100);
              };
              fnComplete = function () {
                  setTimeout(function () {
                      if (self.showPreview) {
                          $btnUpload.removeAttr('disabled');
                          $btnDelete.removeAttr('disabled');
                          $thumb.removeClass('file-uploading');
                      }
                      if (!allFiles) {
                          self.unlock(false);
                      } else {
                          chkComplete();
                      }
                      self.initSuccessThumbs();
                  }, 100);
              };
              fnError = function (jqXHR, textStatus, errorThrown) {
                  var errMsg = self.parseError(jqXHR, errorThrown, (allFiles ? files[i].name : null));
                  setTimeout(function () {
                      if (allFiles) {
                          updateUploadLog(i, previewId);
                      }
                      self.uploadStatus[previewId] = 100;
                      self.setThumbStatus($thumb, 'Error');
                      params = $.extend(params, self.getOutData(jqXHR));
                      self.showUploadError(errMsg, params);
                  }, 100);
              };
              formdata.append(self.uploadFileAttr, files[i], self.filenames[i]);
              formdata.append('file_id', i);
              self.ajaxSubmit(fnBefore, fnSuccess, fnComplete, fnError, previewId, i);
          },
          uploadBatch: function () {
              var self = this, files = self.filestack, total = files.length, params = {},
                  hasPostData = self.filestack.length > 0 || !$.isEmptyObject(self.uploadExtraData),
                  setAllUploaded, fnBefore, fnSuccess, fnComplete, fnError;
              self.formdata = new FormData();
              if (total === 0 || !hasPostData || self.abort(params)) {
                  return;
              }
              setAllUploaded = function () {
                  $.each(files, function (key) {
                      self.updateStack(key, undefined);
                  });
                  self.clearFileInput();
              };
              fnBefore = function (jqXHR) {
                  self.lock();
                  var outData = self.getOutData(jqXHR);
                  if (self.showPreview) {
                      self.getThumbs().each(function () {
                          var $thumb = $(this), $btnUpload = $thumb.find('.kv-file-upload'),
                              $btnDelete = $thumb.find('.kv-file-remove');
                          if (!$thumb.hasClass('file-preview-success')) {
                              self.setThumbStatus($thumb, 'Loading');
                              addCss($thumb, 'file-uploading');
                          }
                          $btnUpload.attr('disabled', true);
                          $btnDelete.attr('disabled', true);
                      });
                  }
                  self.raise('filebatchpreupload', [outData]);
                  if (self.abort(outData)) {
                      jqXHR.abort();
                      self.setProgress(100);
                  }
              };
              fnSuccess = function (data, textStatus, jqXHR) {
                  /** @namespace data.errorkeys */
                  var outData = self.getOutData(jqXHR, data), $thumbs = self.getThumbs(), key = 0,
                      keys = isEmpty(data) || isEmpty(data.errorkeys) ? [] : data.errorkeys;
                  if (isEmpty(data) || isEmpty(data.error)) {
                      self.raise('filebatchuploadsuccess', [outData]);
                      setAllUploaded();
                      if (self.showPreview) {
                          $thumbs.each(function () {
                              var $thumb = $(this), $btnUpload = $thumb.find('.kv-file-upload');
                              $thumb.find('.kv-file-upload').hide();
                              self.setThumbStatus($thumb, 'Success');
                              $thumb.removeClass('file-uploading');
                              $btnUpload.removeAttr('disabled');
                          });
                          self.initUploadSuccess(data);
                      } else {
                          self.reset();
                      }
                  } else {
                      if (self.showPreview) {
                          $thumbs.each(function () {
                              var $thumb = $(this), $btnDelete = $thumb.find('.kv-file-remove'),
                                  $btnUpload = $thumb.find('.kv-file-upload');
                              $thumb.removeClass('file-uploading');
                              $btnUpload.removeAttr('disabled');
                              $btnDelete.removeAttr('disabled');
                              if (keys.length === 0) {
                                  self.setThumbStatus($thumb, 'Error');
                                  return;
                              }
                              if ($.inArray(key, keys) !== -1) {
                                  self.setThumbStatus($thumb, 'Error');
                              } else {
                                  $thumb.find('.kv-file-upload').hide();
                                  self.setThumbStatus($thumb, 'Success');
                                  self.updateStack(key, undefined);
                              }
                              key++;
                          });
                          self.initUploadSuccess(data);
                      }
                      self.showUploadError(data.error, outData, 'filebatchuploaderror');
                  }
              };
              fnComplete = function () {
                  self.setProgress(100);
                  self.unlock();
                  self.initSuccessThumbs();
                  self.clearFileInput();
                  self.raise('filebatchuploadcomplete', [self.filestack, self.getExtraData()]);
              };
              fnError = function (jqXHR, textStatus, errorThrown) {
                  var outData = self.getOutData(jqXHR), errMsg = self.parseError(jqXHR, errorThrown);
                  self.showUploadError(errMsg, outData, 'filebatchuploaderror');
                  self.uploadFileCount = total - 1;
                  if (!self.showPreview) {
                      return;
                  }
                  self.getThumbs().each(function () {
                      var $thumb = $(this), key = $thumb.attr('data-fileindex');
                      $thumb.removeClass('file-uploading');
                      if (self.filestack[key] !== undefined) {
                          self.setThumbStatus($thumb, 'Error');
                      }
                  });
                  self.getThumbs().removeClass('file-uploading');
                  self.getThumbs(' .kv-file-upload').removeAttr('disabled');
                  self.getThumbs(' .kv-file-delete').removeAttr('disabled');
              };
              $.each(files, function (key, data) {
                  if (!isEmpty(files[key])) {
                      self.formdata.append(self.uploadFileAttr, data, self.filenames[key]);
                  }
              });
              self.ajaxSubmit(fnBefore, fnSuccess, fnComplete, fnError);
          },
          uploadExtraOnly: function () {
              var self = this, params = {}, fnBefore, fnSuccess, fnComplete, fnError;
              self.formdata = new FormData();
              if (self.abort(params)) {
                  return;
              }
              fnBefore = function (jqXHR) {
                  self.lock();
                  var outData = self.getOutData(jqXHR);
                  self.raise('filebatchpreupload', [outData]);
                  self.setProgress(50);
                  params.data = outData;
                  params.xhr = jqXHR;
                  if (self.abort(params)) {
                      jqXHR.abort();
                      self.setProgress(100);
                  }
              };
              fnSuccess = function (data, textStatus, jqXHR) {
                  var outData = self.getOutData(jqXHR, data);
                  if (isEmpty(data) || isEmpty(data.error)) {
                      self.raise('filebatchuploadsuccess', [outData]);
                      self.clearFileInput();
                      self.initUploadSuccess(data);
                  } else {
                      self.showUploadError(data.error, outData, 'filebatchuploaderror');
                  }
              };
              fnComplete = function () {
                  self.setProgress(100);
                  self.unlock();
                  self.clearFileInput();
                  self.raise('filebatchuploadcomplete', [self.filestack, self.getExtraData()]);
              };
              fnError = function (jqXHR, textStatus, errorThrown) {
                  var outData = self.getOutData(jqXHR), errMsg = self.parseError(jqXHR, errorThrown);
                  params.data = outData;
                  self.showUploadError(errMsg, outData, 'filebatchuploaderror');
              };
              self.ajaxSubmit(fnBefore, fnSuccess, fnComplete, fnError);
          },
          upload: function () {
              var self = this, totLen = self.getFileStack().length, params = {},
                  i, outData, len, hasExtraData = !$.isEmptyObject(self.getExtraData());
              if (self.minFileCount > 0 && self.getFileCount(totLen) < self.minFileCount) {
                  self.noFilesError(params);
                  return;
              }
              if (!self.isUploadable || self.isDisabled || (totLen === 0 && !hasExtraData)) {
                  return;
              }
              self.resetUpload();
              self.$progress.removeClass('hide');
              self.uploadCount = 0;
              self.uploadStatus = {};
              self.uploadLog = [];
              self.lock();
              self.setProgress(2);
              if (totLen === 0 && hasExtraData) {
                  self.uploadExtraOnly();
                  return;
              }
              len = self.filestack.length;
              self.hasInitData = false;
              if (self.uploadAsync) {
                  outData = self.getOutData();
                  self.raise('filebatchpreupload', [outData]);
                  self.fileBatchCompleted = false;
                  self.uploadCache = {content: [], config: [], tags: [], append: true};
                  self.uploadAsyncCount = self.getFileStack().length;
                  for (i = 0; i < len; i++) {
                      self.uploadCache.content[i] = null;
                      self.uploadCache.config[i] = null;
                      self.uploadCache.tags[i] = null;
                  }
                  for (i = 0; i < len; i++) {
                      if (self.filestack[i] !== undefined) {
                          self.uploadSingle(i, self.filestack, true);
                      }
                  }
                  return;
              }
              self.uploadBatch();
          },
          initFileActions: function () {
              var self = this;
              if (!self.showPreview) {
                  return;
              }
              self.$preview.find('.kv-file-remove').each(function () {
                  var $el = $(this), $frame = $el.closest('.file-preview-frame'), hasError,
                      id = $frame.attr('id'), ind = $frame.attr('data-fileindex'), n, cap, status;
                  handler($el, 'click', function () {
                      status = self.raise('filepreremove', [id, ind]);
                      if (status === false || !self.validateMinCount()) {
                          return false;
                      }
                      hasError = $frame.hasClass('file-preview-error');
                      self.cleanMemory($frame);
                      $frame.fadeOut('slow', function () {
                          self.updateStack(ind, undefined);
                          self.clearObjects($frame);
                          $frame.remove();
                          if (id && hasError) {
                              self.$errorContainer.find('li[data-file-id="' + id + '"]').fadeOut('fast', function () {
                                  $(this).remove();
                                  if (!self.errorsExist()) {
                                      self.resetErrors();
                                  }
                              });
                          }
                          var filestack = self.getFileStack(true), len = filestack.length, chk = previewCache.count(self.id),
                              hasThumb = self.showPreview && self.$preview.find('.file-preview-frame').length;
                          self.clearFileInput();
                          if (len === 0 && chk === 0 && !hasThumb) {
                              self.reset();
                          } else {
                              n = chk + len;
                              cap = n > 1 ? self.getMsgSelected(n) : (filestack[0] ? self.getFileNames()[0] : '');
                              self.setCaption(cap);
                          }
                          self.raise('fileremoved', [id, ind]);
                      });
                  });
              });
              self.$preview.find('.kv-file-upload').each(function () {
                  var $el = $(this);
                  handler($el, 'click', function () {
                      var $frame = $el.closest('.file-preview-frame'),
                          ind = $frame.attr('data-fileindex');
                      if (!$frame.hasClass('file-preview-error')) {
                          self.uploadSingle(ind, self.filestack, false);
                      }
                  });
              });
          },
          hideFileIcon: function () {
              if (this.overwriteInitial) {
                  this.$captionContainer.find('.kv-caption-icon').hide();
              }
          },
          showFileIcon: function () {
              this.$captionContainer.find('.kv-caption-icon').show();
          },
          addError: function (msg) {
              var self = this, $error = self.$errorContainer;
              if (msg && $error.length) {
                  $error.html(self.errorCloseButton + msg);
                  $error.find('.kv-error-close').off('click').on('click', function () {
                      $error.fadeOut('slow');
                  });
              }
          },
          resetErrors: function (fade) {
              var self = this, $error = self.$errorContainer;
              self.isError = false;
              self.$container.removeClass('has-error');
              $error.html('');
              if (fade) {
                  $error.fadeOut('slow');
              } else {
                  $error.hide();
              }
          },
          showFolderError: function (folders) {
              var self = this, $error = self.$errorContainer;
              if (!folders) {
                  return;
              }
              self.addError(self.msgFoldersNotAllowed.replace(/\{n}/g, folders));
              $error.fadeIn(800);
              addCss(self.$container, 'has-error');
              self.raise('filefoldererror', [folders]);
          },
          showUploadError: function (msg, params, event) {
              var self = this, $error = self.$errorContainer, ev = event || 'fileuploaderror',
                  e = params && params.id ? '<li data-file-id="' + params.id + '">' + msg + '</li>' : '<li>' + msg + '</li>';
              if ($error.find('ul').length === 0) {
                  self.addError('<ul>' + e + '</ul>');
              } else {
                  $error.find('ul').append(e);
              }
              $error.fadeIn(800);
              self.raise(ev, [params]);
              self.$container.removeClass('file-input-new');
              addCss(self.$container, 'has-error');
              return true;
          },
          showError: function (msg, params, event) {
              var self = this, $error = self.$errorContainer, ev = event || 'fileerror';
              params = params || {};
              params.reader = self.reader;
              self.addError(msg);
              $error.fadeIn(800);
              self.raise(ev, [params]);
              if (!self.isUploadable) {
                  self.clearFileInput();
              }
              self.$container.removeClass('file-input-new');
              addCss(self.$container, 'has-error');
              self.$btnUpload.attr('disabled', true);
              return true;
          },
          errorHandler: function (evt, caption) {
              var self = this, err = evt.target.error;
              /** @namespace err.NOT_FOUND_ERR */
              /** @namespace err.SECURITY_ERR */
              /** @namespace err.NOT_READABLE_ERR */
              if (err.code === err.NOT_FOUND_ERR) {
                  self.showError(self.msgFileNotFound.replace('{name}', caption));
              } else if (err.code === err.SECURITY_ERR) {
                  self.showError(self.msgFileSecured.replace('{name}', caption));
              } else if (err.code === err.NOT_READABLE_ERR) {
                  self.showError(self.msgFileNotReadable.replace('{name}', caption));
              } else if (err.code === err.ABORT_ERR) {
                  self.showError(self.msgFilePreviewAborted.replace('{name}', caption));
              } else {
                  self.showError(self.msgFilePreviewError.replace('{name}', caption));
              }
          },
          parseFileType: function (file) {
              var self = this, isValid, vType, cat, i;
              for (i = 0; i < defaultPreviewTypes.length; i += 1) {
                  cat = defaultPreviewTypes[i];
                  isValid = isSet(cat, self.fileTypeSettings) ? self.fileTypeSettings[cat] : defaultFileTypeSettings[cat];
                  vType = isValid(file.type, file.name) ? cat : '';
                  if (!isEmpty(vType)) {
                      return vType;
                  }
              }
              return 'other';
          },
          previewDefault: function (file, previewId, isDisabled) {
              if (!this.showPreview) {
                  return;
              }
              var self = this, frameClass = '', fname = file ? file.name : '',
                  /** @namespace objUrl.createObjectURL */
                  data = objUrl.createObjectURL(file), ind = previewId.slice(previewId.lastIndexOf('-') + 1),
                  config = self.previewSettings.other || defaultPreviewSettings.other,
                  footer = self.renderFileFooter(file.name, config.width),
                  previewOtherTemplate = self.parseFilePreviewIcon(self.getPreviewTemplate('other'), fname);
              if (isDisabled === true) {
                  if (!self.isUploadable) {
                      footer += '<div class="file-other-error" title="' + self.fileActionSettings.indicatorErrorTitle +
                          '">' + self.fileActionSettings.indicatorError + '</div>';
                  }
              }
              self.clearDefaultPreview();
              self.$preview.append("\n" + previewOtherTemplate
                      .replace(/\{previewId}/g, previewId)
                      .replace(/\{frameClass}/g, frameClass)
                      .replace(/\{fileindex}/g, ind)
                      .replace(/\{caption}/g, self.slug(file.name))
                      .replace(/\{width}/g, config.width)
                      .replace(/\{height}/g, config.height)
                      .replace(/\{type}/g, file.type)
                      .replace(/\{data}/g, data)
                      .replace(/\{footer}/g, footer));
              if (isDisabled === true && self.isUploadable) {
                  self.setThumbStatus($('#' + previewId), 'Error');
              }
          },
          previewFile: function (i, file, theFile, previewId, data) {
              if (!this.showPreview) {
                  return;
              }
              var self = this, cat = self.parseFileType(file), fname = file ? file.name : '', caption = self.slug(fname),
                  content, strText, types = self.allowedPreviewTypes, mimes = self.allowedPreviewMimeTypes,
                  tmplt = self.getPreviewTemplate(cat), chkTypes = types && types.indexOf(cat) >= 0, id,
                  config = isSet(cat, self.previewSettings) ? self.previewSettings[cat] : defaultPreviewSettings[cat],
                  chkMimes = mimes && mimes.indexOf(file.type) !== -1,
                  footer = self.renderFileFooter(caption, config.width), modal = '',
                  ind = previewId.slice(previewId.lastIndexOf('-') + 1);
              if (chkTypes || chkMimes) {
                  tmplt = self.parseFilePreviewIcon(tmplt, fname.split('.').pop());
                  if (cat === 'text') {
                      strText = htmlEncode(theFile.target.result);
                      id = 'text-' + uniqId();
                      content = tmplt.replace(/\{zoom}/g, self.getLayoutTemplate('zoom'));
                      modal = self.getLayoutTemplate('modal').replace('{id}', id)
                          .replace(/\{title}/g, caption)
                          .replace(/\{body}/g, strText).replace(/\{heading}/g, self.msgZoomModalHeading);
                      content = content.replace(/\{previewId}/g, previewId).replace(/\{caption}/g, caption)
                              .replace(/\{width}/g, config.width).replace(/\{height}/g, config.height)
                              .replace(/\{frameClass}/g, '').replace(/\{zoomInd}/g, self.zoomIndicator)
                              .replace(/\{footer}/g, footer).replace(/\{fileindex}/g, ind)
                              .replace(/\{type}/g, file.type).replace(/\{zoomTitle}/g, self.msgZoomTitle)
                              .replace(/\{dialog}/g, "$('#" + id + "').modal('show')")
                              .replace(/\{data}/g, strText) + modal;
                  } else {
                      content = tmplt.replace(/\{previewId}/g, previewId).replace(/\{caption}/g, caption)
                          .replace(/\{frameClass}/g, '').replace(/\{type}/g, file.type).replace(/\{fileindex}/g, ind)
                          .replace(/\{width}/g, config.width).replace(/\{height}/g, config.height)
                          .replace(/\{footer}/g, footer).replace(/\{data}/g, data);
                  }
                  self.clearDefaultPreview();
                  self.$preview.append("\n" + content);
                  self.validateImage(i, previewId, caption, file.type);
              } else {
                  self.previewDefault(file, previewId);
              }
          },
          slugDefault: function (text) {
              return isEmpty(text) ? '' : text.split(/(\\|\/)/g).pop().replace(/[^\w\u00C0-\u017F\-.\\\/ ]+/g, '');
          },
          readFiles: function (files) {
              this.reader = new FileReader();
              var self = this, $el = self.$element, $preview = self.$preview, reader = self.reader,
                  $container = self.$previewContainer, $status = self.$previewStatus, msgLoading = self.msgLoading,
                  msgProgress = self.msgProgress, previewInitId = self.previewInitId, numFiles = files.length,
                  settings = self.fileTypeSettings, ctr = self.filestack.length, readFile,
                  throwError = function (msg, file, previewId, index) {
                      var p1 = $.extend(self.getOutData({}, {}, files), {id: previewId, index: index}),
                          p2 = {id: previewId, index: index, file: file, files: files};
                      self.previewDefault(file, previewId, true);
                      if (self.isUploadable) {
                          self.pushStack(undefined);
                      }
                      setTimeout(readFile(index + 1), 100);
                      self.initFileActions();
                      return self.isUploadable ? self.showUploadError(msg, p1) : self.showError(msg, p2);
                  };
  
              self.loadedImages = [];
              self.totalImagesCount = 0;
  
              $.each(files, function (key, file) {
                  var cat = 'image',
                      func = isSet(cat, self.fileTypeSettings) ? self.fileTypeSettings[cat] : defaultFileTypeSettings[cat];
                  if (func && func(file.type)) {
                      self.totalImagesCount++;
                  }
              });
  
              readFile = function (i) {
                  if (isEmpty($el.attr('multiple'))) {
                      numFiles = 1;
                  }
                  if (i >= numFiles) {
                      if (self.isUploadable && self.filestack.length > 0) {
                          self.raise('filebatchselected', [self.getFileStack()]);
                      } else {
                          self.raise('filebatchselected', [files]);
                      }
                      $container.removeClass('file-thumb-loading');
                      $status.html('');
                      return;
                  }
                  var node = ctr + i, previewId = previewInitId + "-" + node, isText, file = files[i],
                      caption = self.slug(file.name), fileSize = (file.size || 0) / 1000, checkFile, fileExtExpr = '',
                      previewData = objUrl.createObjectURL(file), fileCount = 0, j, msg, typ, chk,
                      fileTypes = self.allowedFileTypes, strTypes = isEmpty(fileTypes) ? '' : fileTypes.join(', '),
                      fileExt = self.allowedFileExtensions, strExt = isEmpty(fileExt) ? '' : fileExt.join(', ');
                  if (!isEmpty(fileExt)) {
                      fileExtExpr = new RegExp('\\.(' + fileExt.join('|') + ')$', 'i');
                  }
                  fileSize = fileSize.toFixed(2);
                  if (self.maxFileSize > 0 && fileSize > self.maxFileSize) {
                      msg = self.msgSizeTooLarge.replace('{name}', caption)
                          .replace('{size}', fileSize)
                          .replace('{maxSize}', self.maxFileSize);
                      self.isError = throwError(msg, file, previewId, i);
                      return;
                  }
                  if (!isEmpty(fileTypes) && isArray(fileTypes)) {
                      for (j = 0; j < fileTypes.length; j += 1) {
                          typ = fileTypes[j];
                          checkFile = settings[typ];
                          chk = (checkFile !== undefined && checkFile(file.type, caption));
                          fileCount += isEmpty(chk) ? 0 : chk.length;
                      }
                      if (fileCount === 0) {
                          msg = self.msgInvalidFileType.replace('{name}', caption).replace('{types}', strTypes);
                          self.isError = throwError(msg, file, previewId, i);
                          return;
                      }
                  }
                  if (fileCount === 0 && !isEmpty(fileExt) && isArray(fileExt) && !isEmpty(fileExtExpr)) {
                      chk = caption.match(fileExtExpr);
                      fileCount += isEmpty(chk) ? 0 : chk.length;
                      if (fileCount === 0) {
                          msg = self.msgInvalidFileExtension.replace('{name}', caption).replace('{extensions}',
                              strExt);
                          self.isError = throwError(msg, file, previewId, i);
                          return;
                      }
                  }
                  if (!self.showPreview) {
                      self.pushStack(file);
                      setTimeout(readFile(i + 1), 100);
                      self.raise('fileloaded', [file, previewId, i, reader]);
                      return;
                  }
                  if ($preview.length > 0 && FileReader !== undefined) {
                      $status.html(msgLoading.replace('{index}', i + 1).replace('{files}', numFiles));
                      $container.addClass('file-thumb-loading');
                      reader.onerror = function (evt) {
                          self.errorHandler(evt, caption);
                      };
                      reader.onload = function (theFile) {
                          self.previewFile(i, file, theFile, previewId, previewData);
                          self.initFileActions();
                      };
                      reader.onloadend = function () {
                          msg = msgProgress
                              .replace('{index}', i + 1).replace('{files}', numFiles)
                              .replace('{percent}', 50).replace('{name}', caption);
                          setTimeout(function () {
                              $status.html(msg);
                              self.updateFileDetails(numFiles);
                              readFile(i + 1);
                          }, 100);
                          self.raise('fileloaded', [file, previewId, i, reader]);
                      };
                      reader.onprogress = function (data) {
                          if (data.lengthComputable) {
                              var fact = (data.loaded / data.total) * 100, progress = Math.ceil(fact);
                              msg = msgProgress.replace('{index}', i + 1).replace('{files}', numFiles)
                                  .replace('{percent}', progress).replace('{name}', caption);
                              setTimeout(function () {
                                  $status.html(msg);
                              }, 100);
                          }
                      };
                      isText = isSet('text', settings) ? settings.text : defaultFileTypeSettings.text;
                      if (isText(file.type, caption)) {
                          reader.readAsText(file, self.textEncoding);
                      } else {
                          reader.readAsArrayBuffer(file);
                      }
                  } else {
                      self.previewDefault(file, previewId);
                      setTimeout(function () {
                          readFile(i + 1);
                          self.updateFileDetails(numFiles);
                      }, 100);
                      self.raise('fileloaded', [file, previewId, i, reader]);
                  }
                  self.pushStack(file);
              };
  
              readFile(0);
              self.updateFileDetails(numFiles, false);
          },
          updateFileDetails: function (numFiles) {
              var self = this, $el = self.$element, fileStack = self.getFileStack(),
                  name = $el.val() || (fileStack.length && fileStack[0].name) || '', label = self.slug(name),
                  n = self.isUploadable ? fileStack.length : numFiles,
                  nFiles = previewCache.count(self.id) + n,
                  log = n > 1 ? self.getMsgSelected(nFiles) : label;
              if (self.isError) {
                  self.$previewContainer.removeClass('file-thumb-loading');
                  self.$previewStatus.html('');
                  self.$captionContainer.find('.kv-caption-icon').hide();
              } else {
                  self.showFileIcon();
              }
              self.setCaption(log, self.isError);
              self.$container.removeClass('file-input-new file-input-ajax-new');
              if (arguments.length === 1) {
                  self.raise('fileselect', [numFiles, label]);
              }
              if (previewCache.count(self.id)) {
                  self.initPreviewDeletes();
              }
          },
          validateMinCount: function () {
              var self = this, len = self.isUploadable ? self.getFileStack().length : self.$element.get(0).files.length;
              if (self.validateInitialCount && self.minFileCount > 0 && self.getFileCount(len - 1) < self.minFileCount) {
                  self.noFilesError({});
                  return false;
              }
              return true;
          },
          getFileCount: function (fileCount) {
              var self = this, addCount = 0;
              if (self.validateInitialCount && !self.overwriteInitial) {
                  addCount = previewCache.count(self.id);
                  fileCount += addCount;
              }
              return fileCount;
          },
          change: function (e) {
              var self = this, $el = self.$element;
              if (!self.isUploadable && isEmpty($el.val()) && self.fileInputCleared) { // IE 11 fix
                  self.fileInputCleared = false;
                  return;
              }
              self.fileInputCleared = false;
              var tfiles, msg, total, isDragDrop = arguments.length > 1,
                  files = isDragDrop ? e.originalEvent.dataTransfer.files : $el.get(0).files,
                  isSingleUpload = isEmpty($el.attr('multiple')), i = 0, f, n, folders = 0,
                  ctr = self.filestack.length, isAjaxUpload = self.isUploadable, len,
                  flagSingle = (isSingleUpload && ctr > 0),
                  throwError = function (mesg, file, previewId, index) {
                      var p1 = $.extend(self.getOutData({}, {}, files), {id: previewId, index: index}),
                          p2 = {id: previewId, index: index, file: file, files: files};
                      return self.isUploadable ? self.showUploadError(mesg, p1) : self.showError(mesg, p2);
                  };
              self.reader = null;
              self.resetUpload();
              self.hideFileIcon();
              if (self.isUploadable) {
                  self.$container.find('.file-drop-zone .' + self.dropZoneTitleClass).remove();
              }
              if (isDragDrop) {
                  tfiles = [];
                  while (files[i]) {
                      f = files[i];
                      if (!f.type && f.size % 4096 === 0) {
                          folders++;
                      } else {
                          tfiles.push(f);
                      }
                      i++;
                  }
              } else {
                  if (e.target.files === undefined) {
                      tfiles = e.target && e.target.value ? [
                          {name: e.target.value.replace(/^.+\\/, '')}
                      ] : [];
                  } else {
                      tfiles = e.target.files;
                  }
              }
              if (isEmpty(tfiles) || tfiles.length === 0) {
                  if (!isAjaxUpload) {
                      self.clear();
                  }
                  self.showFolderError(folders);
                  self.raise('fileselectnone');
                  return;
              }
              self.resetErrors();
              len = tfiles.length;
              total = self.isUploadable ? self.getFileStack().length + len : len;
              total = self.getFileCount(total);
              if (self.maxFileCount > 0 && total > self.maxFileCount) {
                  if (!self.autoReplace || len > self.maxFileCount) {
                      n = (self.autoReplace && len > self.maxFileCount) ? len : total;
                      msg = self.msgFilesTooMany.replace('{m}', self.maxFileCount).replace('{n}', n);
                      self.isError = throwError(msg, null, null, null);
                      self.$captionContainer.find('.kv-caption-icon').hide();
                      self.setCaption('', true);
                      self.$container.removeClass('file-input-new file-input-ajax-new');
                      return;
                  }
                  if (total > self.maxFileCount) {
                      self.resetPreviewThumbs(isAjaxUpload);
                  }
              } else {
                  if (!isAjaxUpload || flagSingle) {
                      self.resetPreviewThumbs(false);
                      if (flagSingle) {
                          self.clearStack();
                      }
                  } else {
                      if (isAjaxUpload && ctr === 0 && (!previewCache.count(self.id) || self.overwriteInitial)) {
                          self.resetPreviewThumbs(true);
                      }
                  }
              }
              if (self.isPreviewable) {
                  self.readFiles(tfiles);
              } else {
                  self.updateFileDetails(1);
              }
              self.showFolderError(folders);
          },
          getFileName: function (file) {
              return file && file.name ? this.slug(file.name) : undefined;
          },
          getFileNames: function (skipNull) {
              var self = this;
              return self.filenames.filter(function (n) {
                  return (skipNull ? n !== undefined : n !== undefined && n !== null);
              });
          },
          getFileStack: function (skipNull) {
              var self = this;
              return self.filestack.filter(function (n) {
                  return (skipNull ? n !== undefined : n !== undefined && n !== null);
              });
          },
          clearStack: function () {
              var self = this;
              self.filestack = [];
              self.filenames = [];
          },
          updateStack: function (i, file) {
              var self = this;
              self.filestack[i] = file;
              self.filenames[i] = self.getFileName(file);
          },
          pushStack: function (file) {
              var self = this;
              self.filestack.push(file);
              self.filenames.push(self.getFileName(file));
          },
          checkDimensions: function (i, chk, $img, $thumb, fname, type, params) {
              var self = this, msg, dim, tag = chk === 'Small' ? 'min' : 'max',
                  limit = self[tag + 'Image' + type], $imgEl, isValid;
              if (isEmpty(limit) || !$img.length) {
                  return;
              }
              $imgEl = $img[0];
              dim = (type === 'Width') ? $imgEl.naturalWidth || $imgEl.width : $imgEl.naturalHeight || $imgEl.height;
              isValid = chk === 'Small' ? dim >= limit : dim <= limit;
              if (isValid) {
                  return;
              }
              msg = self['msgImage' + type + chk].replace('{name}', fname).replace('{size}', limit);
              self.showUploadError(msg, params);
              self.setThumbStatus($thumb, 'Error');
              self.updateStack(i, null);
          },
          validateImage: function (i, previewId, fname, ftype) {
              var self = this, $preview = self.$preview, params, w1, w2,
                  $thumb = $preview.find("#" + previewId), $img = $thumb.find('img');
              fname = fname || 'Untitled';
              if (!$img.length) {
                  return;
              }
              handler($img, 'load', function () {
                  w1 = $thumb.width();
                  w2 = $preview.width();
                  if (w1 > w2) {
                      $img.css('width', '100%');
                      $thumb.css('width', '97%');
                  }
                  params = {ind: i, id: previewId};
                  self.checkDimensions(i, 'Small', $img, $thumb, fname, 'Width', params);
                  self.checkDimensions(i, 'Small', $img, $thumb, fname, 'Height', params);
                  if (!self.resizeImage) {
                      self.checkDimensions(i, 'Large', $img, $thumb, fname, 'Width', params);
                      self.checkDimensions(i, 'Large', $img, $thumb, fname, 'Height', params);
                  }
                  self.raise('fileimageloaded', [previewId]);
                  self.loadedImages.push({ind: i, img: $img, thumb: $thumb, pid: previewId, typ: ftype});
                  self.validateAllImages();
                  objUrl.revokeObjectURL($img.attr('src'));
              });
          },
          validateAllImages: function () {
              var self = this, i, config, $img, $thumb, pid, ind, params = {}, errFunc;
              if (self.loadedImages.length !== self.totalImagesCount) {
                  return;
              }
              self.raise('fileimagesloaded');
              if (!self.resizeImage) {
                  return;
              }
              errFunc = self.isUploadable ? self.showUploadError : self.showError;
              for (i = 0; i < self.loadedImages.length; i++) {
                  config = self.loadedImages[i];
                  $img = config.img;
                  $thumb = config.thumb;
                  pid = config.pid;
                  ind = config.ind;
                  params = {id: pid, 'index': ind};
                  if (!self.getResizedImage($img[0], config.typ, pid, ind)) {
                      errFunc(self.msgImageResizeError, params, 'fileimageresizeerror');
                      self.setThumbStatus($thumb, 'Error');
                      self.updateStack(ind, undefined);
                  }
              }
              self.raise('fileimagesresized');
          },
          getResizedImage: function (image, type, pid, ind) {
              var self = this, width = image.naturalWidth, height = image.naturalHeight, ratio = 1,
                  maxWidth = self.maxImageWidth || width, maxHeight = self.maxImageHeight || height,
                  isValidImage = (width && height), chkWidth, chkHeight,
                  canvas = self.imageCanvas, context = self.imageCanvasContext;
              if (!isValidImage) {
                  return false;
              }
              if (width === maxWidth && height === maxHeight) {
                  return true;
              }
              type = type || self.resizeDefaultImageType;
              chkWidth = width > maxWidth;
              chkHeight = height > maxHeight;
              if (self.resizePreference === 'width') {
                  ratio = chkWidth ? maxWidth / width : (chkHeight ? maxHeight / height : 1);
              } else {
                  ratio = chkHeight ? maxHeight / height : (chkWidth ? maxWidth / width : 1);
              }
              self.resetCanvas();
              width *= ratio;
              height *= ratio;
              canvas.width = width;
              canvas.height = height;
              try {
                  context.drawImage(image, 0, 0, width, height);
                  canvas.toBlob(function (blob) {
                      self.raise('fileimageresized', [pid, ind]);
                      self.filestack[ind] = blob;
                  }, type, self.resizeQuality);
                  return true;
              }
              catch (err) {
                  return false;
              }
          },
          initCaption: function () {
              var self = this, cap = self.initialCaption || '';
              if (self.overwriteInitial || isEmpty(cap)) {
                  self.$caption.html('');
                  return false;
              }
              self.setCaption(cap);
              return true;
          },
          setCaption: function (content, isError) {
              var self = this, title, out;
              if (isError) {
                  title = $('<div>' + self.msgValidationError + '</div>').text();
                  out = '<span class="' + self.msgValidationErrorClass + '">' +
                      self.msgValidationErrorIcon + title + '</span>';
              } else {
                  if (isEmpty(content) || self.$caption.length === 0) {
                      return;
                  }
                  title = $('<div>' + content + '</div>').text();
                  out = self.getLayoutTemplate('icon') + title;
              }
              self.$caption.html(out);
              self.$caption.attr('title', title);
              self.$captionContainer.find('.file-caption-ellipsis').attr('title', title);
          },
          initBrowse: function ($container) {
              var self = this;
              self.$btnFile = $container.find('.btn-file');
              self.$btnFile.append(self.$element);
          },
          createContainer: function () {
              var self = this,
                  $container = $(document.createElement("div"))
                      .attr({"class": 'file-input file-input-new'})
                      .html(self.renderMain());
              self.$element.before($container);
              self.initBrowse($container);
              return $container;
          },
          refreshContainer: function () {
              var self = this, $container = self.$container;
              $container.before(self.$element);
              $container.html(self.renderMain());
              self.initBrowse($container);
          },
          renderMain: function () {
              var self = this, dropCss = (self.isUploadable && self.dropZoneEnabled) ? ' file-drop-zone' : 'file-drop-disabled',
                  close = !self.showClose ? '' : self.getLayoutTemplate('close'),
                  preview = !self.showPreview ? '' : self.getLayoutTemplate('preview')
                      .replace(/\{class}/g, self.previewClass)
                      .replace(/\{dropClass}/g, dropCss),
                  css = self.isDisabled ? self.captionClass + ' file-caption-disabled' : self.captionClass,
                  caption = self.captionTemplate.replace(/\{class}/g, css + ' kv-fileinput-caption');
              return self.mainTemplate.replace(/\{class}/g, self.mainClass)
                  .replace(/\{preview}/g, preview)
                  .replace(/\{close}/g, close)
                  .replace(/\{caption}/g, caption)
                  .replace(/\{upload}/g, self.renderButton('upload'))
                  .replace(/\{remove}/g, self.renderButton('remove'))
                  .replace(/\{cancel}/g, self.renderButton('cancel'))
                  .replace(/\{browse}/g, self.renderButton('browse'));
          },
          renderButton: function (type) {
              var self = this, tmplt = self.getLayoutTemplate('btnDefault'), css = self[type + 'Class'],
                  title = self[type + 'Title'], icon = self[type + 'Icon'], label = self[type + 'Label'],
                  status = self.isDisabled ? ' disabled' : '', btnType = 'button';
              switch (type) {
                  case 'remove':
                      if (!self.showRemove) {
                          return '';
                      }
                      break;
                  case 'cancel':
                      if (!self.showCancel) {
                          return '';
                      }
                      css += ' hide';
                      break;
                  case 'upload':
                      if (!self.showUpload) {
                          return '';
                      }
                      if (self.isUploadable && !self.isDisabled) {
                          tmplt = self.getLayoutTemplate('btnLink').replace('{href}', self.uploadUrl);
                      } else {
                          btnType = 'submit';
                      }
                      break;
                  case 'browse':
                      tmplt = self.getLayoutTemplate('btnBrowse');
                      break;
                  default:
                      return '';
              }
              css += type === 'browse' ? ' btn-file' : ' fileinput-' + type + ' fileinput-' + type + '-button';
              if (!isEmpty(label)) {
                  label = ' <span class="' + self.buttonLabelClass + '">' + label + '</span>';
              }
              return tmplt.replace('{type}', btnType)
                  .replace('{css}', css)
                  .replace('{title}', title)
                  .replace('{status}', status)
                  .replace('{icon}', icon)
                  .replace('{label}', label);
          }
      }
      ;
  
  //FileInput plugin definition
      $.fn.fileinput = function (option) {
          if (!hasFileAPISupport() && !isIE(9)) {
              return;
          }
          var args = Array.apply(null, arguments), retvals = [];
          args.shift();
          this.each(function () {
              var $this = $(this), data = $this.data('fileinput'), defaults,
                  options = typeof option === 'object' && option,
                  lang = options.language || $this.data('language') || 'en';
  
              if (!data) {
                  defaults = $.extend({}, $.fn.fileinput.defaults);
                  if (lang !== 'en' && !isEmpty($.fn.fileinputLocales[lang])) {
                      defaults = $.extend(defaults, $.fn.fileinputLocales[lang]);
                  }
                  data = new FileInput(this, $.extend(defaults, options, $this.data()));
                  $this.data('fileinput', data);
              }
  
              if (typeof option === 'string') {
                  retvals.push(data[option].apply(data, args));
              }
          });
          switch (retvals.length) {
              case 0:
                  return this;
              case 1:
                  return retvals[0];
              default:
                  return retvals;
          }
      };
  
      $.fn.fileinput.defaults = {
          language: 'en',
          showCaption: true,
          showPreview: true,
          showRemove: true,
          showUpload: true,
          showCancel: true,
          showClose: true,
          showUploadedThumbs: true,
          autoReplace: false,
          mainClass: '',
          previewClass: '',
          captionClass: '',
          mainTemplate: null,
          initialCaption: '',
          initialPreview: [],
          initialPreviewDelimiter: '*$$*',
          initialPreviewConfig: [],
          initialPreviewThumbTags: [],
          previewThumbTags: {},
          initialPreviewShowDelete: true,
          deleteUrl: '',
          deleteExtraData: {},
          overwriteInitial: true,
          layoutTemplates: defaultLayoutTemplates,
          previewTemplates: defaultPreviewTemplates,
          allowedPreviewTypes: defaultPreviewTypes,
          allowedPreviewMimeTypes: null,
          allowedFileTypes: null,
          allowedFileExtensions: null,
          defaultPreviewContent: null,
          customLayoutTags: {},
          customPreviewTags: {},
          previewSettings: defaultPreviewSettings,
          fileTypeSettings: defaultFileTypeSettings,
          previewFileIcon: '<i class="glyphicon glyphicon-file"></i>',
          previewFileIconClass: 'file-icon-4x',
          previewFileIconSettings: {},
          previewFileExtSettings: {},
          buttonLabelClass: 'hidden-xs',
          browseIcon: '<i class="glyphicon glyphicon-folder-open"></i>',
          browseClass: 'btn btn-primary',
          removeIcon: '<i class="glyphicon glyphicon-trash"></i>',
          removeClass: 'btn btn-default',
          cancelIcon: '<i class="glyphicon glyphicon-ban-circle"></i>',
          cancelClass: 'btn btn-default',
          uploadIcon: '<i class="glyphicon glyphicon-upload"></i>',
          uploadClass: 'btn btn-default',
          uploadUrl: null,
          uploadAsync: true,
          uploadExtraData: {},
          minImageWidth: null,
          minImageHeight: null,
          maxImageWidth: null,
          maxImageHeight: null,
          resizeImage: false,
          resizePreference: 'width',
          resizeQuality: 0.92,
          resizeDefaultImageType: 'image/jpeg',
          maxFileSize: 0,
          minFileCount: 0,
          maxFileCount: 0,
          validateInitialCount: false,
          msgValidationErrorClass: 'text-danger',
          msgValidationErrorIcon: '<i class="glyphicon glyphicon-exclamation-sign"></i> ',
          msgErrorClass: 'file-error-message',
          progressThumbClass: "progress-bar progress-bar-success progress-bar-striped active",
          progressClass: "progress-bar progress-bar-success progress-bar-striped active",
          progressCompleteClass: "progress-bar progress-bar-success",
          previewFileType: 'image',
          zoomIndicator: '<i class="glyphicon glyphicon-zoom-in"></i>',
          elCaptionContainer: null,
          elCaptionText: null,
          elPreviewContainer: null,
          elPreviewImage: null,
          elPreviewStatus: null,
          elErrorContainer: null,
          errorCloseButton: '<span class="close kv-error-close">&times;</span>',
          slugCallback: null,
          dropZoneEnabled: true,
          dropZoneTitleClass: 'file-drop-zone-title',
          fileActionSettings: {},
          otherActionButtons: '',
          textEncoding: 'UTF-8',
          ajaxSettings: {},
          ajaxDeleteSettings: {},
          showAjaxErrorDetails: true
      };
  
      $.fn.fileinputLocales.en = {
          fileSingle: 'file',
          filePlural: 'files',
          browseLabel: 'Browse &hellip;',
          removeLabel: 'Remove',
          removeTitle: 'Clear selected files',
          cancelLabel: 'Cancel',
          cancelTitle: 'Abort ongoing upload',
          uploadLabel: 'Upload',
          uploadTitle: 'Upload selected files',
          msgZoomTitle: 'View details',
          msgZoomModalHeading: 'Detailed Preview',
          msgSizeTooLarge: 'File "{name}" (<b>{size} KB</b>) exceeds maximum allowed upload size of <b>{maxSize} KB</b>.',
          msgFilesTooLess: 'You must select at least <b>{n}</b> {files} to upload.',
          msgFilesTooMany: 'Number of files selected for upload <b>({n})</b> exceeds maximum allowed limit of <b>{m}</b>.',
          msgFileNotFound: 'File "{name}" not found!',
          msgFileSecured: 'Security restrictions prevent reading the file "{name}".',
          msgFileNotReadable: 'File "{name}" is not readable.',
          msgFilePreviewAborted: 'File preview aborted for "{name}".',
          msgFilePreviewError: 'An error occurred while reading the file "{name}".',
          msgInvalidFileType: 'Invalid type for file "{name}". Only "{types}" files are supported.',
          msgInvalidFileExtension: 'Invalid extension for file "{name}". Only "{extensions}" files are supported.',
          msgUploadAborted: 'The file upload was aborted',
          msgValidationError: 'File Upload Error',
          msgLoading: 'Loading file {index} of {files} &hellip;',
          msgProgress: 'Loading file {index} of {files} - {name} - {percent}% completed.',
          msgSelected: '{n} {files} selected',
          msgFoldersNotAllowed: 'Drag & drop files only! {n} folder(s) dropped were skipped.',
          msgImageWidthSmall: 'Width of image file "{name}" must be at least {size} px.',
          msgImageHeightSmall: 'Height of image file "{name}" must be at least {size} px.',
          msgImageWidthLarge: 'Width of image file "{name}" cannot exceed {size} px.',
          msgImageHeightLarge: 'Height of image file "{name}" cannot exceed {size} px.',
          msgImageResizeError: 'Could not get the image dimensions to resize.',
          msgImageResizeException: 'Error while resizing the image.<pre>{errors}</pre>',
          dropZoneTitle: 'Drag & drop files here &hellip;'
      };
  
      $.extend($.fn.fileinput.defaults, $.fn.fileinputLocales.en);
  
      $.fn.fileinput.Constructor = FileInput;
  
      /**
       * Convert automatically file inputs with class 'file'
       * into a bootstrap fileinput control.
       */
      $(document).ready(function () {
          var $input = $('input.file[type=file]');
          if ($input.length) {
              $input.fileinput();
          }
      });
  }));