application/helpers/customlogo.php

   1 <?php defined('SYSPATH') OR die('No direct access allowed.');
   2 /**
   3  * Help class to ease the customization of the Ninja GUI Logo
   4  */
   5 class customlogo {
   6         /**
   7          * Display the div with the logo if it's all enabled
   8          */
   9         public static function Render()
  10         {
  11                 if (!Kohana::Config('customlogo.enable'))
  12                         return;
  13
  14                 $logo = customlogo::imageExists($image = customlogo::getImage());
  15
  16                 if ($logo) {
  17                         $height = 42;
  18                         echo html::image(array(
  19                                                 'src' => $image,
  20                                                 'height' => $height,
  21                                         ),
  22                                         array(
  23                                                 'alt' => '',
  24                                                 'style' => '',
  25                                         )
  26                                 );
  27                 }
  28
  29                 return;
  30         }
  31
  32         /**
  33          * Function to check if the image actually exists, else we won't display the logo
  34          */
  35         function imageExists($logo)
  36         {
  37                 if (is_file($logo))
  38                         return is_readable($logo);
  39
  40                 return false;
  41         }
  42
  43         /**
  44          * Get the logo we should use based on some nifty logic
  45          */
  46         function getImage()
  47         {
  48                 $path = 'application/views/icons/';
  49                 $icon = $path . Kohana::config('customlogo.path') . Kohana::config('customlogo.default_icon');
  50
  51                 /**
  52                  * Get list of icons found in the custom_logo dir and
  53                  * try to match it towards your pattern defined in config
  54                  */
  55                 $images = customlogo::getCustomImageList();
  56                 if (!$images) {
  57                         return $icon;
  58                 }
  59
  60                 if (!preg_match(Kohana::config('customlogo.pattern'), user::session('username'), $custom)) {
  61                         return $icon;
  62                 }
  63
  64                 foreach ($images as $image) {
  65                         if (($image == $custom[1] . '.png') || ($image == $custom[1] . '.jpg')) {
  66                                 return $path . Kohana::config('customlogo.path') . $image;
  67                         }
  68                 }
  69
  70                 return $icon;
  71         }
  72
  73
  74         /**
  75          * Read the custom dir defined in customlogo config file
  76          * return an array of the names.
  77          */
  78         function getCustomImageList()
  79         {
  80                 $images = false;
  81                 if ($fh = opendir(APPPATH.'views/icons/'.Kohana::Config('customlogo.path'))) {
  82                         while (false !== ($file = readdir($fh))) {
  83                                 if ((substr($file, -4) == '.png') || (substr($file, -4) == '.jpg')) {
  84                                         $images[] = $file;
  85                                 }
  86                         }
  87                 }
  88
  89                 return $images;
  90         }
  91 }