implement TextFormatter class to include media in texts

app/Controller.inc

@@ -67,6 +67,9 @@
 			// Create linker
 			$this->linker = new \nre\core\Linker($this->request);
 			
+			// Create text formatter
+			$this->set('t', new \hhu\z\TextFormatter($this->linker));
+			
 			// Create date and time and number formatter
 			$this->set('dateFormatter', new \IntlDateFormatter(
 				\nre\core\Config::getDefault('locale'),

app/TextFormatter.inc

@@ -0,0 +1,127 @@
+<?php
+
+	/**
+	 * The Legend of Z
+	 *
+	 * @author	Oliver Hanraths <oliver.hanraths@uni-duesseldorf.de>
+	 * @copyright	2014 Heinrich-Heine-Universität Düsseldorf
+	 * @license	http://www.gnu.org/licenses/gpl.html
+	 * @link	https://bitbucket.org/coderkun/the-legend-of-z
+	 */
+	
+	namespace hhu\z;
+	
+	
+	/**
+	 * Class to format text with different syntax tags.
+	 * 
+	 * @author	Oliver Hanraths <oliver.hanraths@uni-duesseldorf.de>
+	 */
+	class TextFormatter
+	{
+		/**
+		 * Linker to create links.
+		 * 
+		 * @var Linker
+		 */
+		private $linker;
+		/**
+		 * Media-Model to retrieve media data
+		 * 
+		 * @static
+		 * @var model
+		 */
+		private static $Media = null;
+		
+		
+		
+		
+		/**
+		 * Create a new text formatter.
+		 * 
+		 * @param	Linker $linker	Linker to create links with
+		 */
+		public function __construct(\nre\core\Linker $linker)
+		{
+			$this->linker = $linker;
+		}
+		
+		
+		
+		
+		/**
+		 * Format a string.
+		 * 
+		 * @param	string	$string	String to format
+		 * @return	string		Formatted string
+		 */
+		public function t($string)
+		{
+			// Remove chars and replace linefeeds
+			$string = nl2br(htmlspecialchars($string));
+			
+			// Handle Seminarymedia
+			preg_match_all('/\[seminarymedia:(\d+)\]/iu', $string, $matches, PREG_SET_ORDER | PREG_OFFSET_CAPTURE);
+			foreach($matches as &$match)
+			{
+				// Get Seminary media
+				$seminarymediaId = intval($match[1][0]);
+				$htmlImage = null;
+				if(!is_null(\hhu\z\controllers\SeminaryRoleController::$seminary) && $this->loadMediaModel())
+				{
+					try {
+						$medium = self::$Media->getSeminaryMediaById($seminarymediaId);
+						$htmlImage = sprintf(
+							'<img src="%s" alt="%s" />',
+							$this->linker->link(array('media','seminary', \hhu\z\controllers\SeminaryRoleController::$seminary['url'],$medium['url'])),
+							$medium['description']
+						);
+					}
+					catch(\nre\exceptions\IdNotFoundException $e) {
+					}
+				}
+				
+				// Replace placholder
+				$startPos = mb_strlen(substr($string, 0, $match[0][1]), 'UTF-8');
+				$endPos = $startPos + mb_strlen($match[0][0]);
+				$string = mb_substr($string, 0, $startPos, 'UTF-8'). $htmlImage . mb_substr($string, $endPos, null, 'UTF-8');
+			}
+			
+			
+			// Return processed string
+			return $string;
+		}
+		
+		
+		
+		
+		/**
+		 * Load the Media-Model if it is not loaded
+		 * 
+		 * @return	boolean	Whether the Media-Model has been loaded or not
+		 */
+		private function loadMediaModel()
+		{
+			// Do not load Model if it has already been loaded
+			if(!is_null(self::$Media)) {
+				return true;
+			}
+			
+			try {
+				// Load class
+				Model::load('media');
+			
+				// Construct Model
+				self::$Media = Model::factory('media');
+			}
+			catch(\Exception $e) {
+			}
+			
+			
+			// Return whether Media-Model has been loaded or not
+			return !is_null(self::$Media);
+		}
+		
+	}
+
+?>

app/Utils.inc

@@ -28,7 +28,7 @@
 		 * @param	string	$string	String to be masked
 		 * @return	string		Masked string
 		 */
-		static function t($string)
+		public static function t($string)
 		{
 			return nl2br(htmlspecialchars($string));
 		}

questtypes/choiceinput/html/quest.tpl

@@ -7,7 +7,7 @@
 		<?php endforeach ?>
 	</select>
 	<?php endif ?>
-	<?=\hhu\z\Utils::t($text)?>
+	<?=$t->t($text)?>
 	<?php endforeach ?>
 	
 	<br /><br />

questtypes/choiceinput/html/submission.tpl

@@ -7,6 +7,6 @@
 		<?php endforeach ?>
 	</select>
 	<?php endif ?>
-	<?=\hhu\z\Utils::t($text)?>
+	<?=$t->t($text)?>
 	<?php endforeach ?>
 </form>

questtypes/multiplechoice/html/quest.tpl

@@ -6,7 +6,7 @@
 			<?php foreach($question['answers'] as $i => &$answer) : ?>
 			<li>
 				<input type="checkbox" id="answers[<?=$i?>]" name="answers[<?=$i?>]" value="true" <?=(array_key_exists('useranswer', $answer) && $answer['useranswer']) ? 'checked="checked"' : '' ?> />
-				<label for="answers[<?=$i?>]"><?=\hhu\z\Utils::t($answer['answer'])?></label>
+				<label for="answers[<?=$i?>]"><?=$t->t($answer['answer'])?></label>
 			</li>
 			<?php endforeach ?>
 		</ol>

questtypes/multiplechoice/html/submission.tpl

@@ -1,7 +1,7 @@
 <ol>
 	<?php foreach($questions as $pos => &$question) : ?>
 	<li>
-		<h1><?=\hhu\z\Utils::t($question['question'])?></h1>
+		<h1><?=$t->t($question['question'])?></h1>
 		<ol>
 			<?php foreach($question['answers'] as &$answer) : ?>
 			<li>

questtypes/textinput/html/quest.tpl

@@ -3,7 +3,7 @@
 	<?php if($i > 0) : ?>
 	<input type="text" name="answers[<?=$i-1?>]" value="<?=$regexs[$i-1]['answer']?>" />
 	<?php endif ?>
-	<?=\hhu\z\Utils::t($text)?>
+	<?=$t->t($text)?>
 	<?php endforeach ?>
 	
 	<br /><br />

questtypes/textinput/html/submission.tpl

@@ -3,5 +3,5 @@
 <span style="background-color:grey"><?=$regexs[$i-1]['answer']?></span>
 <?php if($regexs[$i-1]['right']) : ?>✓<?php else: ?>✕<?php endif ?>
 <?php endif ?>
-<?=\hhu\z\Utils::t($text)?>
+<?=$t->t($text)?>
 <?php endforeach ?>