1: <?php
 2: /**
 3:  * @category   Horde
 4:  * @package    View
 5:  * @subpackage Helper
 6:  */
 7: 
 8: /**
 9:  * Abstract class for Horde_View_Helper objects.
10:  *
11:  * All helpers hold a link back to the instance of the view.  The undefined
12:  * property handlers (__get()/__call() methods) are used to mix helpers
13:  * together, effectively placing them on the same pane of glass (the view) and
14:  * allowing any helper to call any other.
15:  *
16:  * @category   Horde
17:  * @package    View
18:  * @subpackage Helper
19:  */
20: abstract class Horde_View_Helper_Base
21: {
22:     /**
23:      * The parent view invoking the helper.
24:      *
25:      * @var Horde_View
26:      */
27:     protected $_view;
28: 
29:     /**
30:      * Creates a helper for $view.
31:      *
32:      * @param Horde_View $view The view to help.
33:      */
34:     public function __construct($view)
35:     {
36:         $this->_view = $view;
37:         $view->addHelper($this);
38:     }
39: 
40:     /**
41:      * Proxy on undefined property access (get).
42:      */
43:     public function __get($name)
44:     {
45:         return $this->_view->$name;
46:     }
47: 
48:     /**
49:      * Proxy on undefined property access (set).
50:      */
51:     public function __set($name, $value)
52:     {
53:         return $this->_view->$name = $value;
54:     }
55: 
56:     /**
57:      * Call chaining so members of the view can be called (including other
58:      * helpers).
59:      *
60:      * @param string $method  The method.
61:      * @param array $args     The parameters for the method.
62:      *
63:      * @return mixed  The result of the method.
64:      */
65:     public function __call($method, $args)
66:     {
67:         return call_user_func_array(array($this->_view, $method), $args);
68:     }
69: }
70: