3 +--------------------------------------------------------------------+
4 | CiviCRM version 4.4 |
5 +--------------------------------------------------------------------+
6 | Copyright CiviCRM LLC (c) 2004-2013 |
7 +--------------------------------------------------------------------+
8 | This file is a part of CiviCRM. |
10 | CiviCRM is free software; you can copy, modify, and distribute it |
11 | under the terms of the GNU Affero General Public License |
12 | Version 3, 19 November 2007 and the CiviCRM Licensing Exception. |
14 | CiviCRM is distributed in the hope that it will be useful, but |
15 | WITHOUT ANY WARRANTY; without even the implied warranty of |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
17 | See the GNU Affero General Public License for more details. |
19 | You should have received a copy of the GNU Affero General Public |
20 | License and the CiviCRM Licensing Exception along |
21 | with this program; if not, contact CiviCRM LLC |
22 | at info[AT]civicrm[DOT]org. If you have questions about the |
23 | GNU Affero General Public License or the licensing of CiviCRM, |
24 | see the CiviCRM license FAQ at http://civicrm.org/licensing |
25 +--------------------------------------------------------------------+
29 * The basic state element. Each state element is linked to a form and
30 * represents the form in the transition diagram. We use the state to
31 * determine what action to take on various user input. Actions include
32 * things like going back / stepping forward / process etc
35 * @copyright CiviCRM LLC (c) 2004-2013
39 class CRM_Core_State
{
48 * this is a combination "OR" of the STATE_* constants defined below
54 * the state that precedes this state
60 * the state that succeeds this state
66 * The state machine that this state is part of
69 protected $_stateMachine;
72 * The different types of states. As we flush out the framework more
73 * we will introduce other conditional / looping states which will
74 * bring in more complexity to the framework. For now, lets keep it simple
77 CONST START
= 1, FINISH
= 2, SIMPLE
= 4;
82 * @param string the internal name of the state
83 * @param int the state type
84 * @param object the state that precedes this state
85 * @param object the state that follows this state
86 * @param object the statemachine that this states belongs to
91 function __construct($name, $type, $back, $next, &$stateMachine) {
97 $this->_stateMachine
= &$stateMachine;
100 function debugPrint() {
101 CRM_Core_Error
::debug("{$this->_name}, {$this->_type}", "{$this->_back}, {$this->_next}");
105 * Given an CRM Form, jump to the previous page
107 * @param object the CRM_Core_Form element under consideration
109 * @return mixed does a jump to the back state
112 function handleBackState(&$page) {
113 if ($this->_type
& self
::START
) {
114 $page->handle('display');
117 $back = &$page->controller
->getPage($this->_back
);
118 return $back->handle('jump');
123 * Given an CRM Form, jump to the next page
125 * @param object the CRM_Core_Form element under consideration
127 * @return mixed does a jump to the nextstate
130 function handleNextState(&$page) {
131 if ($this->_type
& self
::FINISH
) {
132 $page->handle('process');
135 $next = &$page->controller
->getPage($this->_next
);
136 return $next->handle('jump');
141 * Determine the name of the next state. This is useful when we want
142 * to display the navigation labels or potential path
147 function getNextState() {
148 if ($this->_type
& self
::FINISH
) {
152 $next = &$page->controller
->getPage($this->_next
);
158 * Mark this page as valid for the QFC framework. This is needed as
159 * we build more advanced functionality into the StateMachine
161 * @param object the QFC data container
166 function validate(&$data) {
167 $data['valid'][$this->_name
] = TRUE;
171 * Mark this page as invalid for the QFC framework. This is needed as
172 * we build more advanced functionality into the StateMachine
174 * @param object the QFC data container
179 function invalidate(&$data) {
180 $data['valid'][$this->_name
] = NULL;
201 function setName($name) {
202 $this->_name
= $name;