openrat-cms

Component.class.php (4382B)

---

 <?php
 
 namespace template_engine\components;
 
 use cms\action\RequestParams;
 use modules\template_engine\Element;
 
 abstract class Component
 {
 
 	private $depth;
 
     /**
      * @var RequestParams
      */
     public $request;
 
 	/**
 	 * @var Element
 	 */
     private $element;
 
     public function __construct()
 	{
 		$this->element = $this->createElement();
 	}
 
 	public function getDepth()
 	{
 		return $this->depth;
 	}
 
 	public function setDepth($depth)
 	{
 		$this->depth = $depth;
 	}
 
 	public function createElement() {
     	return null;
 	}
 
 
 	/**
 	 * Gets the beginning of this component.
 	 * @return string
 	 */
 	public function getBegin()
 	{
 		if   ( $this->element )
 			return $this->element->getBegin();
 
 		ob_start();
 		$this->begin();
 		$src = ob_get_contents();
 		ob_end_clean();
 		return $src;
 	}
 
 	public function getEnd()
 	{
 		if   ( $this->element )
 			return $this->element->getEnd();
 
 		ob_start();
 		$this->end();
 		$src = ob_get_contents();
 		ob_end_clean();
 		return $src;
 	}
 
 	/**
 	 * Outputs the beginning of this component.
 	 */
 	protected function begin()
 	{}
 
 	protected function end()
 	{}
 	
 	
 	protected function textasvarname($value)
 	{
 		$expr = new Expression($value);
 		return $expr->getTextAsVarName();
 		
 	}
 	
 	
 	protected function varname($value)
 	{
 		$expr = new Expression($value);
 		return $expr->getVarName();
 	}
 	
 	
 	
 	protected function htmlvalue($value)
 	{
 		$expr = new Expression($value);
 		return $expr->getHTMLValue();
 	}
 	
 	
 	
 	protected function value( $value )
 	{
 		$expr = new Expression($value);
 		return $expr->getPHPValue();
 	}
 	
 
 	protected function includeResource($file )
 	{
 		echo "<?php include_once( 'modules/template-engine/components/html/".$file."') ?>";
 	}
 	
 }
 
 
 
 class Expression
 {
 	public $type;
 	public $value;
 	public $invert = false;
 	
 	public function __construct( $value )
 	{
 		// Falls der Wert 'true' oder 'false' ist.
 		if	( is_bool($value))
 			$value = $value?'true':'false';
 		
 		// Negierung berücksichtigen.
 		if	( substr($value,0,4)=='not:' )
 		{
 			$value = substr($value,4);
 			$this->invert = true;
 		}
 		
 		// Trennung 'type:value'
 		$parts = explode( ':', $value, 2 );
 		
 		if	( count($parts) < 2 )
 			$parts = array('',$value);
 			
 		list( $this->type,$this->value ) = $parts;
 		
 		// Fallback: Typ = 'text'.
 		if	( empty($this->type))
 			$this->type = 'text';
 		
 	}
 
 	
 	
 	public function getHTMLValue()
 	{
 		switch( $this->type )
 		{
 			case 'text':
 				return $this->value;
 				
 			default:
 				return '<'.'?php echo '.$this->getPHPValue().' ?>';
 		}
 	}
 	
 	
 	public function getVarName()
 	{
 		switch( $this->type )
 		{
 			case 'var':
 				return '$'.$this->value;
 			case 'text':
 				return $this->value;
 			default:
 				throw new \LogicException("Invalid expression type '$this->type' in attribute value. Allowed: text|var");
 		}
 	}
 	
 	
 	public function getTextAsVarName()
 	{
 		switch( $this->type )
 		{
 			case 'var':
 				return '$$'.$this->value;
 			case 'text':
 				return '$'.$this->value;
 			default:
 				return $this->getPHPValue();
 		}
 	}
 	
 	
 	public function getPHPValue()
 	{
 		$value = $this->value;
 		
 		$invert = $this->invert?'!':'';
 		
 		switch( $this->type )
 		{
 			case 'text':
 				// Sonderf�lle f�r die Attributwerte "true" und "false".
 				// Hinweis: Die Zeichenkette "false" entspricht in PHP true.
 				// Siehe http://de.php.net/manual/de/language.types.boolean.php
 				if	( $value == 'true' || $value == 'false' )
 					return $value;
 				else
 					return "'".$value."'";
 			case 'tpl':
 				// macht aus "text1{var}text2" => "text1".$var."text2"
 				$value = preg_replace('/{(\w+)\}/','\'.$\\1.\'',$value);
 				return "'".$value."'";
 			case 'var':
 				return $invert.'$'.$value;
 			case 'size':
 				return '@count($'.$value.')';
 			case 'message':
 				// macht aus "text1{var}text2" => "text1".$var."text2"
 				$value = preg_replace('/{(\w+)\}/','\'.$\\1.\'',$value);
 				return 'lang('."'".$value."'".')';
 			case 'arrayvar':
 				list($arr,$key) = explode(':',$value.':none');
 				return $invert.'@$'.$arr.'['.$key.']';
 			case 'config':
 				$config_parts = explode('/',$value);
 				return $invert.'config('."'".implode("'".','."'",$config_parts)."'".')';
 				
 			default:
 				throw new \LogicException("Unknown expression type '{$this->type}' in attribute value. Allowed: var|function|method|text|size|property|message|messagevar|arrayvar|config or none");
 		}
 	}
 	
 	
 }
 
 
 
 ?>