helpers/smiley_helper.php

   1 <?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');\r
   2 /**\r
   3  * CodeIgniter\r
   4  *\r
   5  * An open source application development framework for PHP 4.3.2 or newer\r
   6  *\r
   7  * @package             CodeIgniter\r
   8  * @author              ExpressionEngine Dev Team\r
   9  * @copyright   Copyright (c) 2008, EllisLab, Inc.\r
  10  * @license             http://codeigniter.com/user_guide/license.html\r
  11  * @link                http://codeigniter.com\r
  12  * @since               Version 1.0\r
  13  * @filesource\r
  14  */\r
  15 \r
  16 // ------------------------------------------------------------------------\r
  17 \r
  18 /**\r
  19  * CodeIgniter Smiley Helpers\r
  20  *\r
  21  * @package             CodeIgniter\r
  22  * @subpackage  Helpers\r
  23  * @category    Helpers\r
  24  * @author              ExpressionEngine Dev Team\r
  25  * @link                http://codeigniter.com/user_guide/helpers/smiley_helper.html\r
  26  */\r
  27 \r
  28 // ------------------------------------------------------------------------\r
  29 \r
  30 /**\r
  31  * JS Insert Smiley\r
  32  *\r
  33  * Generates the javascrip function needed to insert smileys into a form field\r
  34  *\r
  35  * @access      public\r
  36  * @param       string  form name\r
  37  * @param       string  field name\r
  38  * @return      string\r
  39  */\r
  40 if ( ! function_exists('js_insert_smiley'))\r
  41 {\r
  42         function js_insert_smiley($form_name = '', $form_field = '')\r
  43         {\r
  44                 return <<<EOF\r
  45 <script type="text/javascript">\r
  46         function insert_smiley(smiley)\r
  47         {\r
  48                 document.{$form_name}.{$form_field}.value += " " + smiley;\r
  49         }\r
  50 </script>\r
  51 EOF;\r
  52         }\r
  53 }\r
  54 // ------------------------------------------------------------------------\r
  55 \r
  56 /**\r
  57  * Get Clickable Smileys\r
  58  *\r
  59  * Returns an array of image tag links that can be clicked to be inserted \r
  60  * into a form field.  \r
  61  *\r
  62  * @access      public\r
  63  * @param       string  the URL to the folder containing the smiley images\r
  64  * @return      array\r
  65  */\r
  66 if ( ! function_exists('get_clickable_smileys'))\r
  67 {\r
  68         function get_clickable_smileys($image_url = '', $smileys = NULL)\r
  69         {\r
  70                 if ( ! is_array($smileys))\r
  71                 {\r
  72                         if (FALSE === ($smileys = _get_smiley_array()))\r
  73                         {\r
  74                                 return $smileys;\r
  75                         }\r
  76                 }\r
  77 \r
  78                 // Add a trailing slash to the file path if needed\r
  79                 $image_url = preg_replace("/(.+?)\/*$/", "\\1/",  $image_url);\r
  80 \r
  81                 $used = array();\r
  82                 foreach ($smileys as $key => $val)\r
  83                 {\r
  84                         // Keep duplicates from being used, which can happen if the\r
  85                         // mapping array contains multiple identical replacements.  For example:\r
  86                         // :-) and :) might be replaced with the same image so both smileys\r
  87                         // will be in the array.\r
  88                         if (isset($used[$smileys[$key][0]]))\r
  89                         {\r
  90                                 continue;\r
  91                         }\r
  92 \r
  93                         $link[] = "<a href=\"javascript:void(0);\" onClick=\"insert_smiley('".$key."')\"><img src=\"".$image_url.$smileys[$key][0]."\" width=\"".$smileys[$key][1]."\" height=\"".$smileys[$key][2]."\" alt=\"".$smileys[$key][3]."\" style=\"border:0;\" /></a>";\r
  94 \r
  95                         $used[$smileys[$key][0]] = TRUE;\r
  96                 }\r
  97 \r
  98                 return $link;\r
  99         }\r
 100 }\r
 101 \r
 102 // ------------------------------------------------------------------------\r
 103 \r
 104 /**\r
 105  * Parse Smileys\r
 106  *\r
 107  * Takes a string as input and swaps any contained smileys for the actual image\r
 108  *\r
 109  * @access      public\r
 110  * @param       string  the text to be parsed\r
 111  * @param       string  the URL to the folder containing the smiley images\r
 112  * @return      string\r
 113  */\r
 114 if ( ! function_exists('parse_smileys'))\r
 115 {\r
 116         function parse_smileys($str = '', $image_url = '', $smileys = NULL)\r
 117         {\r
 118                 if ($image_url == '')\r
 119                 {\r
 120                         return $str;\r
 121                 }\r
 122 \r
 123                 if ( ! is_array($smileys))\r
 124                 {\r
 125                         if (FALSE === ($smileys = _get_smiley_array()))\r
 126                         {\r
 127                                 return $str;\r
 128                         }\r
 129                 }\r
 130 \r
 131                 // Add a trailing slash to the file path if needed\r
 132                 $image_url = preg_replace("/(.+?)\/*$/", "\\1/",  $image_url);\r
 133 \r
 134                 foreach ($smileys as $key => $val)\r
 135                 {\r
 136                         $str = str_replace($key, "<img src=\"".$image_url.$smileys[$key][0]."\" width=\"".$smileys[$key][1]."\" height=\"".$smileys[$key][2]."\" alt=\"".$smileys[$key][3]."\" style=\"border:0;\" />", $str);\r
 137                 }\r
 138 \r
 139                 return $str;\r
 140         }\r
 141 }\r
 142 \r
 143 // ------------------------------------------------------------------------\r
 144 \r
 145 /**\r
 146  * Get Smiley Array\r
 147  *\r
 148  * Fetches the config/smiley.php file\r
 149  *\r
 150  * @access      private\r
 151  * @return      mixed\r
 152  */\r
 153 if ( ! function_exists('_get_smiley_array'))\r
 154 {\r
 155         function _get_smiley_array()\r
 156         {\r
 157                 if ( ! file_exists(APPPATH.'config/smileys'.EXT))\r
 158                 {\r
 159                         return FALSE;\r
 160                 }\r
 161 \r
 162                 include(APPPATH.'config/smileys'.EXT);\r
 163 \r
 164                 if ( ! isset($smileys) OR ! is_array($smileys))\r
 165                 {\r
 166                         return FALSE;\r
 167                 }\r
 168 \r
 169                 return $smileys;\r
 170         }\r
 171 }\r
 172 \r
 173 \r
 174 /* End of file smiley_helper.php */\r
 175 /* Location: ./system/helpers/smiley_helper.php */