crm.fsf.org/20131203/files/sites/all/modules/civicrm/packages/jquery/plugins/jquery.chainedSelects.js

   1 /**
   2 *    Chained Selects for jQuery
   3 *    Copyright (C) 2008 Ziadin Givan www.CodeAssembly.com
   4 *
   5 *    This program is free software: you can redistribute it and/or modify
   6 *    it under the terms of the GNU General Public License as published by
   7 *    the Free Software Foundation, either version 3 of the License, or
   8 *    (at your option) any later version.
   9 *
  10 *    This program is distributed in the hope that it will be useful,
  11 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 *    GNU General Public License for more details.
  14 *
  15 *    You should have received a copy of the GNU General Public License
  16 *    along with this program.  If not, see http://www.gnu.org/licenses/
  17 *
  18 *
  19 *   settings = { usePost : true, before:function() {}, after: function() {}, default: null, parameters : { parameter1 : 'value1', parameter2 : 'value2'} }
  20 *   if usePost is true, then the form will use POST to pass the parameters to the target, otherwise will use GET
  21 *   "before" function is called before the ajax request and "after" function is called after the ajax request.
  22 *   If defaultValue is not null then the specified option will be selected.
  23 *   You can specify additional parameters to be sent to the the server in settings.parameters.
  24 *
  25 */
  26 ;(function($) {
  27
  28 jQuery.fn.chainSelect = function( target, url, settings )
  29 {
  30   return this.each( function()
  31   {
  32         $(this).change( function( )
  33         {
  34                 settings = $.extend(
  35                 {
  36                         after : null,
  37                         before : null,
  38                         usePost : false,
  39                         defaultValue : null,
  40                         parameters : {'_id' : $(this).attr('id'), '_name' : $(this).attr('name')}
  41         } , settings);
  42
  43                 settings.parameters._value =  $(this).val();
  44
  45                 if (settings.before != null)
  46                 {
  47                         settings.before( target );
  48                 }
  49
  50                 ajaxCallback = function(data, textStatus)
  51                 {
  52                         $(target).html("");//clear old options
  53                         data = eval(data);//get json array
  54                         if ( data != null ) {
  55                             for (i = 0; i < data.length; i++) {
  56                                 $(target).get(0).add(new Option(data[i].name, data[i].value), document.all ? i : null);
  57                             }
  58                         } else {
  59                                 $(target).get(0).add(new Option('- select a country -', ''), document.all ? i : null);
  60                         }
  61
  62                         if (settings.defaultValue != null)
  63                         {
  64                                 $(target).val(settings.defaultValue);//select default value
  65                         } else
  66                         {
  67                                 $("option:first", target).attr( "selected", "selected" );//select first option
  68                         }
  69
  70                         if (settings.after != null)
  71                         {
  72                                 settings.after(target);
  73                         }
  74
  75                         $(target).change();//call next chain
  76                 };
  77
  78                 if (settings.usePost == true)
  79                 {
  80                         $.post( url, settings.parameters, ajaxCallback );
  81                 } else
  82                 {
  83                         $.get( url, settings.parameters, ajaxCallback );
  84                 }
  85         });
  86   });
  87 };
  88
  89 })(jQuery);