helpers/smiley_helper.php

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