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ObservableComponent.php
1 <?php
2  /*********************************************************************************
3  * Zurmo is a customer relationship management program developed by
4  * Zurmo, Inc. Copyright (C) 2017 Zurmo Inc.
5  *
6  * Zurmo is free software; you can redistribute it and/or modify it under
7  * the terms of the GNU Affero General Public License version 3 as published by the
8  * Free Software Foundation with the addition of the following permission added
9  * to Section 15 as permitted in Section 7(a): FOR ANY PART OF THE COVERED WORK
10  * IN WHICH THE COPYRIGHT IS OWNED BY ZURMO, ZURMO DISCLAIMS THE WARRANTY
11  * OF NON INFRINGEMENT OF THIRD PARTY RIGHTS.
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13  * Zurmo is distributed in the hope that it will be useful, but WITHOUT
14  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
15  * FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
16  * details.
17  *
18  * You should have received a copy of the GNU Affero General Public License along with
19  * this program; if not, see http://www.gnu.org/licenses or write to the Free
20  * Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
21  * 02110-1301 USA.
22  *
23  * You can contact Zurmo, Inc. with a mailing address at 27 North Wacker Drive
24  * Suite 370 Chicago, IL 60606. or at email address contact@zurmo.com.
25  *
26  * The interactive user interfaces in original and modified versions
27  * of this program must display Appropriate Legal Notices, as required under
28  * Section 5 of the GNU Affero General Public License version 3.
29  *
30  * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
31  * these Appropriate Legal Notices must retain the display of the Zurmo
32  * logo and Zurmo copyright notice. If the display of the logo is not reasonably
33  * feasible for technical reasons, the Appropriate Legal Notices must display the words
34  * "Copyright Zurmo Inc. 2017. All rights reserved".
35  ********************************************************************************/
36 
37  $basePath = Yii::app()->getBasePath();
38  require_once("$basePath/../../redbean/rb.php");
39 
43  class ObservableComponent extends CComponent
44  {
45  private static $_events = array();
46 
50  public function init()
51  {
52  $this->attachEvents($this->events());
53  }
54 
60  public function attachEvents($events)
61  {
62  foreach ($events as $event)
63  {
64  if ($event['component'] == get_class($this))
65  {
66  parent::attachEventHandler($event['name'], $event['handler']);
67  }
68  }
69  }
70 
76  public function events()
77  {
78  // echo "<pre>";
79  // print_r(self::$_events);
80  // echo "</pre>";
81  return self::$_events;
82  }
83 
90  public function attachEventHandler($name, $handler)
91  {
92  self::$_events[] = array(
93  'component' => get_class($this),
94  'name' => $name,
95  'handler' => $handler
96  );
97  parent::attachEventHandler($name, $handler);
98  }
99 
107  public function detachEventHandler($name, $handler)
108  {
109  foreach (self::$_events as $index => $event)
110  {
111  // when comparing 2 objects use === instead of ==
112  // why? http://www.richardlord.net/blog/php-nesting-level-too-deep-recursive-dependency
113  if ($event['name'] == $name && $event['handler'] === $handler)
114  {
115  unset(self::$_events[$index]);
116  }
117  }
118  return parent::detachEventHandler($name, $handler);
119  }
120  }
121 ?>
detachEventHandler($name, $handler)
attachEventHandler($name, $handler)
Generated on Sun Jul 12 2020 07:10:26
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