plugins/DirectionDetector/jquery.DirectionDetector.js

   1
   2 /**
   3  *
   4  * This program is free software: you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 3 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program.     If not, see <http://www.gnu.org/licenses/>.
  16  *
  17  * @category     Plugin
  18  * @package      StatusNet
  19  * @author               Behrooz shabani (everplays) - <behrooz@rock.com>
  20  * @copyright    2009-2010 Behrooz shabani
  21  * @license      http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
  22  *
  23  */
  24
  25 (function($){
  26         $.fn.isRTL = function(str){
  27                 if(typeof str != typeof "" || str.length<1)
  28                         return false;
  29                 var cc = str.charCodeAt(0);
  30                 if(cc>=1536 && cc<=1791) // arabic, persian, ...
  31                         return true;
  32                 if(cc>=65136 && cc<=65279) // arabic peresent 2
  33                         return true;
  34                 if(cc>=64336 && cc<=65023) // arabic peresent 1
  35                         return true;
  36                 if(cc>=1424 && cc<=1535) // hebrew
  37                         return true;
  38                 if(cc>=64256 && cc<=64335) // hebrew peresent
  39                         return true;
  40                 if(cc>=1792 && cc<=1871) // Syriac
  41                         return true;
  42                 if(cc>=1920 && cc<=1983) // Thaana
  43                         return true;
  44                 if(cc>=1984 && cc<=2047) // NKo
  45                         return true;
  46                 if(cc>=11568 && cc<=11647) // Tifinagh
  47                         return true;
  48                 return false;
  49         };
  50     var origInit = SN.Init.NoticeFormSetup;
  51     SN.Init.NoticeFormSetup = function(form) {
  52         origInit(form);
  53         var tArea = form.find(".notice_data-text:first");
  54         if (tArea.length > 0) {
  55             var tCleaner = new RegExp('@[^ ]+|![^ ]+|#[^ ]+|^RT[: ]{1}| RT | RT: |^RD[: ]{1}| RD | RD: |[♺♻:]+', 'g')
  56             var ping = function(){
  57                 var cleaned = tArea.val().replace(tCleaner, '').replace(/^[ ]+/, '');
  58                 if($().isRTL(cleaned))
  59                     tArea.css('direction', 'rtl');
  60                 else
  61                     tArea.css('direction', 'ltr');
  62             };
  63             tArea.bind('keyup cut paste', function() {
  64                 // cut/paste trigger before the change
  65                 window.setTimeout(ping, 0);
  66             });
  67             form.bind('reset', function() {
  68                 tArea.css('direction', 'ltr');
  69             });
  70         }
  71     };
  72 })(jQuery);