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:  * Web form adapted for Presenter.
 15:  *
 16:  * @author     David Grudl
 17:  */
 18: class Form extends Nette\Forms\Form implements ISignalReceiver
 19: {
 20: 
 21:     /**
 22:      * Application form constructor.
 23:      */
 24:     public function __construct(Nette\ComponentModel\IContainer $parent = NULL, $name = NULL)
 25:     {
 26:         parent::__construct();
 27:         if ($parent !== NULL) {
 28:             $parent->addComponent($this, $name);
 29:         }
 30:     }
 31: 
 32: 
 33:     /**
 34:      * @return void
 35:      */
 36:     protected function validateParent(Nette\ComponentModel\IContainer $parent)
 37:     {
 38:         parent::validateParent($parent);
 39:         $this->monitor('Nette\Application\UI\Presenter');
 40:     }
 41: 
 42: 
 43:     /**
 44:      * Returns the presenter where this component belongs to.
 45:      * @param  bool   throw exception if presenter doesn't exist?
 46:      * @return Presenter|NULL
 47:      */
 48:     public function getPresenter($need = TRUE)
 49:     {
 50:         return $this->lookup('Nette\Application\UI\Presenter', $need);
 51:     }
 52: 
 53: 
 54:     /**
 55:      * This method will be called when the component (or component's parent)
 56:      * becomes attached to a monitored object. Do not call this method yourself.
 57:      * @param  Nette\ComponentModel\IComponent
 58:      * @return void
 59:      */
 60:     protected function attached($presenter)
 61:     {
 62:         if ($presenter instanceof Presenter) {
 63:             $name = $this->lookupPath('Nette\Application\UI\Presenter');
 64: 
 65:             if (!isset($this->getElementPrototype()->id)) {
 66:                 $this->getElementPrototype()->id = 'frm-' . $name;
 67:             }
 68: 
 69:             if (iterator_count($this->getControls()) && $this->isSubmitted()) {
 70:                 foreach ($this->getControls() as $control) {
 71:                     if (!$control->isDisabled()) {
 72:                         $control->loadHttpData();
 73:                     }
 74:                 }
 75:             }
 76: 
 77:             if (!$this->getAction()) {
 78:                 $this->setAction(new Link($presenter, 'this', array()));
 79:                 $signal = new Nette\Forms\Controls\HiddenField($name . self::NAME_SEPARATOR . 'submit');
 80:                 $signal->setOmitted()->setHtmlId(FALSE);
 81:                 $this[Presenter::SIGNAL_KEY] = $signal;
 82:             }
 83:         }
 84:         parent::attached($presenter);
 85:     }
 86: 
 87: 
 88:     /**
 89:      * Tells if the form is anchored.
 90:      * @return bool
 91:      */
 92:     public function isAnchored()
 93:     {
 94:         return (bool) $this->getPresenter(FALSE);
 95:     }
 96: 
 97: 
 98:     /**
 99:      * Internal: returns submitted HTTP data or NULL when form was not submitted.
100:      * @return array|NULL
101:      */
102:     protected function receiveHttpData()
103:     {
104:         $presenter = $this->getPresenter();
105:         if (!$presenter->isSignalReceiver($this, 'submit')) {
106:             return;
107:         }
108: 
109:         $isPost = $this->getMethod() === self::POST;
110:         $request = $presenter->getRequest();
111:         if ($request->isMethod('forward') || $request->isMethod('post') !== $isPost) {
112:             return;
113:         }
114: 
115:         if ($isPost) {
116:             return Nette\Utils\Arrays::mergeTree($request->getPost(), $request->getFiles());
117:         } else {
118:             return $request->getParameters();
119:         }
120:     }
121: 
122: 
123:     /********************* interface ISignalReceiver ****************d*g**/
124: 
125: 
126:     /**
127:      * This method is called by presenter.
128:      * @param  string
129:      * @return void
130:      */
131:     public function signalReceived($signal)
132:     {
133:         if ($signal === 'submit') {
134:             if (!$this->getPresenter()->getRequest()->hasFlag(Nette\Application\Request::RESTORED)) {
135:                 $this->fireEvents();
136:             }
137:         } else {
138:             $class = get_class($this);
139:             throw new BadSignalException("Missing handler for signal '$signal' in $class.");
140:         }
141:     }
142: 
143: }
144: