summaryrefslogtreecommitdiff
path: root/framework/Web/UI/ActiveControls/TEventTriggeredCallback.php
blob: e4b75558eaa8047331911466c15bf9eacb3d6825 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
<?php
/**
 * TEventTriggeredCallback class file.
 *
 * @author Wei Zhuo <weizhuo[at]gamil[dot]com>
 * @link http://www.pradosoft.com/
 * @copyright Copyright &copy; 2006 PradoSoft
 * @license http://www.pradosoft.com/license/
 * @version $Id$
 * @package System.Web.UI.ActiveControls
 */

Prado::using('System.Web.UI.ActiveControls.TTriggeredCallback');

/**
 * TEventTriggeredCallback Class
 *
 * Triggers a new callback request when a particular {@link setEventName EventName}
 * on a control with ID given by {@link setControlID ControlID} is raised.
 *
 * The default action of the event on the client-side can be prevented when
 * {@link setPreventDefaultAction PreventDefaultAction} is set to true.
 *
 * @author Wei Zhuo <weizhuo[at]gmail[dot]com>
 * @version $Id$
 * @package System.Web.UI.ActiveControls
 * @since 3.1
 */
class TEventTriggeredCallback extends TTriggeredCallback
{
	/**
	 * @return string The client-side event name the trigger listens to.
	 */
	public function getEventName()
	{
		return $this->getViewState('EventName', '');
	}

	/**
	 * Sets the client-side event name that fires the callback request.
	 * @param string The client-side event name the trigger listens to.
	 */
	public function setEventName($value)
	{
		$this->setViewState('EventName', $value, '');
	}

	/**
	 * @param boolean true to prevent/stop default event action.
	 */
	public function setPreventDefaultAction($value)
	{
		$this->setViewState('StopEvent', TPropertyValue::ensureBoolean($value), false);
	}

	/**
	 * @return boolean true to prevent/stop default event action.
	 */
	public function getPreventDefaultAction()
	{
		return $this->getViewState('StopEvent', false);
	}

	/**
	 * @return array list of timer options for client-side.
	 */
	protected function getTriggerOptions()
	{
		$options = parent::getTriggerOptions();
		$name = preg_replace('/^on/', '', $this->getEventName());
		$options['EventName'] = strtolower($name);
		$options['StopEvent'] = $this->getPreventDefaultAction();
		return $options;
	}

	/**
	 * Registers the javascript code for initializing the active control.
	 * @param THtmlWriter the renderer.
	 */
	public function render($writer)
	{
		parent::render($writer);
		$this->getActiveControl()->registerCallbackClientScript(
			$this->getClientClassName(), $this->getTriggerOptions());
	}

	/**
	 * @return string corresponding javascript class name for TEventTriggeredCallback.
	 */
	protected function getClientClassName()
	{
		return 'Prado.WebUI.TEventTriggeredCallback';
	}
}

?>