1: <?php
  2: 
  3: /**
  4:  * This file is part of the Nette Framework (https://nette.org)
  5:  * Copyright (c) 2004 David Grudl (https://davidgrudl.com)
  6:  */
  7: 
  8: namespace Nette\Application\UI;
  9: 
 10: use Nette;
 11: 
 12: 
 13: /**
 14:  * Lazy encapsulation of Component::link().
 15:  * Do not instantiate directly, use Component::lazyLink()
 16:  */
 17: class Link
 18: {
 19:     use Nette\SmartObject;
 20: 
 21:     /** @var Component */
 22:     private $component;
 23: 
 24:     /** @var string */
 25:     private $destination;
 26: 
 27:     /** @var array */
 28:     private $params;
 29: 
 30: 
 31:     /**
 32:      * Link specification.
 33:      */
 34:     public function __construct(Component $component, $destination, array $params = [])
 35:     {
 36:         $this->component = $component;
 37:         $this->destination = $destination;
 38:         $this->params = $params;
 39:     }
 40: 
 41: 
 42:     /**
 43:      * Returns link destination.
 44:      * @return string
 45:      */
 46:     public function getDestination()
 47:     {
 48:         return $this->destination;
 49:     }
 50: 
 51: 
 52:     /**
 53:      * Changes link parameter.
 54:      * @param  string
 55:      * @param  mixed
 56:      * @return static
 57:      */
 58:     public function setParameter($key, $value)
 59:     {
 60:         $this->params[$key] = $value;
 61:         return $this;
 62:     }
 63: 
 64: 
 65:     /**
 66:      * Returns link parameter.
 67:      * @param  string
 68:      * @return mixed
 69:      */
 70:     public function getParameter($key)
 71:     {
 72:         return isset($this->params[$key]) ? $this->params[$key] : null;
 73:     }
 74: 
 75: 
 76:     /**
 77:      * Returns link parameters.
 78:      * @return array
 79:      */
 80:     public function getParameters()
 81:     {
 82:         return $this->params;
 83:     }
 84: 
 85: 
 86:     /**
 87:      * Converts link to URL.
 88:      * @return string
 89:      */
 90:     public function __toString()
 91:     {
 92:         try {
 93:             return $this->component->link($this->destination, $this->params);
 94: 
 95:         } catch (\Exception $e) {
 96:         } catch (\Throwable $e) {
 97:         }
 98:         if (isset($e)) {
 99:             if (func_num_args()) {
100:                 throw $e;
101:             }
102:             trigger_error('Exception in ' . __METHOD__ . "(): {$e->getMessage()} in {$e->getFile()}:{$e->getLine()}", E_USER_ERROR);
103:         }
104:     }
105: }
106: