js/app.helpers.js

   1 /*jslint devel: true*/
   2 /*global $ */
   3
   4 /**
   5  * @class Helpers
   6  */
   7 function Helpers() {
   8         'use strict';
   9 }
  10
  11 (function () { // strict mode wrapper
  12         'use strict';
  13         Helpers.prototype = {
  14
  15                 /**
  16                  * Capitalise the first letter
  17                  *
  18                  * @param {string} text
  19                  * @returns {string}
  20                  */
  21                 UCFirst: function Helpers_UCFirst(text) {
  22                         return text.charAt(0).toUpperCase() + text.slice(1);
  23                 },
  24
  25                 /**
  26                  * @param {string} fileName
  27                  * @returns {string} file name without extension
  28                  */
  29                 getFileName: function Helpers_getFileName(fileName) {
  30                         var fileNameLen = fileName.indexOf('.');
  31                         if (fileNameLen !== -1) {
  32                                 fileName = fileName.slice(0, fileNameLen);
  33                         }
  34                         return fileName;
  35                 },
  36
  37                 /**
  38                  * @param {string} fileName
  39                  * @returns {string} extension for specified file name
  40                  */
  41                 getFileExtension: function Helpers_getFileExtension(fileName) {
  42                         var splittedFileName = fileName.split('.'),
  43                                 ext = '';
  44
  45                         if (splittedFileName.length > 1) {
  46                                 ext = '.' + splittedFileName.pop();
  47                         }
  48                         return ext;
  49                 },
  50
  51                 /**
  52                  * Return icon filename for the given extension.
  53                  * For example, for '.mp3' returns 'music.png'
  54                  *
  55                  * @param {string} ext
  56                  * @return {string}
  57                  */
  58                 resolveFileIcon: function Helpers_resolveFileIcon(ext) {
  59
  60                         ext = ext.toLowerCase();
  61
  62                         switch (ext) {
  63                         case '.jpg':
  64                                 return 'img.png';
  65                         case '.png':
  66                                 return 'img.png';
  67                         case '.gif':
  68                                 return 'img.png';
  69                         case '.pdf':
  70                                 return 'pdf.png';
  71                         case '.mp3':
  72                                 return 'music.png';
  73                         case '.avi':
  74                                 return 'video.png';
  75                         case '.mp4':
  76                                 return 'video.png';
  77                         case '.ppt':
  78                                 return 'ppt.png';
  79                         case '.txt':
  80                                 return 'text.png';
  81                         case '.doc':
  82                                 return 'text.png';
  83                         case '.xls':
  84                                 return 'text.png';
  85                         case '.directory':
  86                                 return 'folder.png';
  87                         default:
  88                                 return 'etc.png';
  89                         }
  90                 },
  91
  92                 /**
  93                  * Resolve file extension to MIME type
  94                  *
  95                  * @param {string} ext File extension
  96                  * @returns {string}
  97                  */
  98                 resolveMimeType: function Helpers_resolveMimeType(ext) {
  99                         var mime = '';
 100
 101                         ext = ext.toLowerCase();
 102
 103                         if (ext === '.jpg' || ext === '.png' || ext === '.gif') {
 104                                 mime = 'image/*';
 105                         } else if (ext === '.mp4' || ext === '.ogv' || ext === '.avi') {
 106                                 mime = 'video/*';
 107                         } else if (ext === '.mp3') {
 108                                 mime = 'audio/mp3';
 109                         } else if (ext === '.txt' || ext === '.doc' || ext === '.html' || ext === '.ppt' || ext === '.xls' || ext === '.pdf') {
 110                                 //mime = 'text/*';
 111                         }
 112
 113                         return mime;
 114                 },
 115
 116                 /**
 117                  * Returns thumbnail URI for specified file
 118                  * @param {string} fileName
 119                  * @param {File} node
 120                  * @returns {string}
 121                  */
 122                 getThumbnailURI: function Helpers_getThumbnailURI(fileName, node) {
 123                         var ext = this.getFileExtension(fileName),
 124                                 thumbnailURI = '';
 125
 126                         if (!node.thumbnailURIs) {
 127                                 thumbnailURI = 'images/' + this.resolveFileIcon(ext);
 128                         } else if (node.thumbnailURIs[0] && $.inArray(ext, ['.mp4', '.jpg', '.png', '.gif'])) {
 129                                 thumbnailURI = node.thumbnailURIs[0];
 130                         }
 131
 132                         return thumbnailURI;
 133                 },
 134
 135                 /**
 136                  * File name automatic number increase for copy files
 137                  */
 138                 getCopyFileName: function (sourceName, filesList) {
 139                         var ext = this.getFileExtension(sourceName),
 140                                 fileName = this.getFileName(sourceName),
 141                                 copyFileName = sourceName, i = 1;
 142                         while ($.inArray(copyFileName, filesList) !== -1) {
 143                                 i+=1;
 144                                 copyFileName = fileName+'('+i+')'+ext;
 145                         }
 146                         return copyFileName;
 147                 }
 148         };
 149 }());
 150
 151 (function($) {
 152         'use strict';
 153
 154         function height(t, el) {
 155                 return t.height() > el.height();
 156         }
 157         function width(t, el) {
 158                 return t.width() > el.width();
 159         }
 160
 161         $.fn.ellipsis = function ()
 162         {
 163                 return this.each(function () {
 164                         var el, text, multiline, t, func;
 165                         el = $(this);
 166                         if(el.css("overflow") === "hidden") {
 167                                 text = el.html();
 168                                 multiline = el.hasClass('multiline');
 169                                 t = $(this.cloneNode(true))
 170                                         .hide()
 171                                         .css('position', 'absolute')
 172                                         .css('overflow', 'visible')
 173                                         .width(multiline ? el.width() : 'auto')
 174                                         .height(multiline ? 'auto' : el.height())
 175                                         ;
 176
 177                                 el.after(t);
 178
 179                                 func = multiline ? height : width;
 180
 181                                 while (text.length > 0 && func(t, el)) {
 182                                         text = text.substr(0, text.length - 1);
 183                                         t.html(text + "...");
 184                                 }
 185
 186                                 el.html(t.html());
 187                                 t.remove();
 188                         }
 189                 });
 190         };
 191 }(jQuery));