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   1  <?php
   2  
   3  /**
   4   * Joomla! Content Management System
   5   *
   6   * @copyright  (C) 2012 Open Source Matters, Inc. <https://www.joomla.org>
   7   * @license    GNU General Public License version 2 or later; see LICENSE.txt
   8   */
   9  
  10  namespace Joomla\CMS\Document;
  11  
  12  use Joomla\CMS\Factory;
  13  
  14  // phpcs:disable PSR1.Files.SideEffects
  15  \defined('JPATH_PLATFORM') or die;
  16  // phpcs:enable PSR1.Files.SideEffects
  17  
  18  /**
  19   * ImageDocument class, provides an easy interface to output image data
  20   *
  21   * @since  3.0.0
  22   */
  23  class ImageDocument extends Document
  24  {
  25      /**
  26       * Class constructor
  27       *
  28       * @param   array  $options  Associative array of options
  29       *
  30       * @since   3.0.0
  31       */
  32      public function __construct($options = array())
  33      {
  34          parent::__construct($options);
  35  
  36          // Set mime type
  37          $this->_mime = 'image/png';
  38  
  39          // Set document type
  40          $this->_type = 'image';
  41      }
  42  
  43      /**
  44       * Render the document.
  45       *
  46       * @param   boolean  $cache   If true, cache the output
  47       * @param   array    $params  Associative array of attributes
  48       *
  49       * @return  string  The rendered data
  50       *
  51       * @since   3.0.0
  52       */
  53      public function render($cache = false, $params = array())
  54      {
  55          // Get the image type
  56          $type = Factory::getApplication()->input->get('type', 'png');
  57  
  58          switch ($type) {
  59              case 'jpg':
  60              case 'jpeg':
  61                  $this->_mime = 'image/jpeg';
  62                  break;
  63              case 'gif':
  64                  $this->_mime = 'image/gif';
  65                  break;
  66              case 'png':
  67              default:
  68                  $this->_mime = 'image/png';
  69                  break;
  70          }
  71  
  72          $this->_charset = null;
  73  
  74          parent::render($cache, $params);
  75  
  76          return $this->getBuffer();
  77      }
  78  }