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
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
|
<?php
/**
* TDataListItemRenderer class file
*
* @author Qiang Xue <qiang.xue@gmail.com>
* @link http://www.pradosoft.com/
* @copyright Copyright © 2005-2008 PradoSoft
* @license http://www.pradosoft.com/license/
* @version $Id$
* @package System.Web.UI.WebControls
*/
Prado::using('System.Web.UI.WebControls.TDataList');
Prado::using('System.Web.UI.WebControls.TItemDataRenderer');
/**
* TDataListItemRenderer class
*
* TDataListItemRenderer can be used as a convenient base class to
* define an item renderer class specific for {@link TDataList}.
*
* TDataListItemRenderer extends {@link TItemDataRenderer} and implements
* the bubbling scheme for the OnCommand event of data list items.
*
* TDataListItemRenderer also implements the {@link IStyleable} interface,
* which allows TDataList to apply CSS styles to the renders.
*
* @author Qiang Xue <qiang.xue@gmail.com>
* @version $Id$
* @package System.Web.UI.WebControls
* @since 3.1.0
*/
class TDataListItemRenderer extends TItemDataRenderer implements IStyleable
{
/**
* Creates a style object to be used by the control.
* This method may be overriden by controls to provide customized style.
* @return TStyle
*/
protected function createStyle()
{
return new TTableItemStyle;
}
/**
* @return boolean whether the control has defined any style information
*/
public function getHasStyle()
{
return $this->getViewState('Style',null)!==null;
}
/**
* @return TStyle the object representing the css style of the control
*/
public function getStyle()
{
if($style=$this->getViewState('Style',null))
return $style;
else
{
$style=$this->createStyle();
$this->setViewState('Style',$style,null);
return $style;
}
}
/**
* Removes all style data.
*/
public function clearStyle()
{
$this->clearViewState('Style');
}
/**
* This method overrides parent's implementation by wrapping event parameter
* for <b>OnCommand</b> event with item information.
* @param TControl the sender of the event
* @param TEventParameter event parameter
* @return boolean whether the event bubbling should stop here.
*/
public function bubbleEvent($sender,$param)
{
if($param instanceof TCommandEventParameter)
{
$this->raiseBubbleEvent($this,new TDataListCommandEventParameter($this,$sender,$param));
return true;
}
else
return false;
}
/**
* Returns the tag name used for this control.
* By default, the tag name is 'span'.
* You can override this method to provide customized tag names.
* If the tag name is empty, the opening and closing tag will NOT be rendered.
* @return string tag name of the control to be rendered
*/
protected function getTagName()
{
return 'span';
}
/**
* Adds attribute name-value pairs to renderer.
* By default, this method renders the style string.
* The method can be overriden to provide customized attribute rendering.
* @param THtmlWriter the writer used for the rendering purpose
*/
protected function addAttributesToRender($writer)
{
if($style=$this->getViewState('Style',null))
$style->addAttributesToRender($writer);
}
/**
* Renders the control.
* This method overrides the parent implementation by replacing it with
* the following sequence:
* - {@link renderBeginTag}
* - {@link renderContents}
* - {@link renderEndTag}
* If the {@link getTagName TagName} is empty, only {@link renderContents} is invoked.
* @param THtmlWriter the writer used for the rendering purpose
*/
public function render($writer)
{
if($this->getTagName()!=='')
{
$this->renderBeginTag($writer);
$this->renderContents($writer);
$this->renderEndTag($writer);
}
else
$this->renderContents($writer);
}
/**
* Renders the openning tag for the control (including attributes)
* This method is invoked when {@link getTagName TagName} is not empty.
* @param THtmlWriter the writer used for the rendering purpose
*/
public function renderBeginTag($writer)
{
$this->addAttributesToRender($writer);
$writer->renderBeginTag($this->getTagName());
}
/**
* Renders the body content enclosed between the control tag.
* By default, child controls and text strings will be rendered.
* You can override this method to provide customized content rendering.
* @param THtmlWriter the writer used for the rendering purpose
*/
public function renderContents($writer)
{
parent::renderChildren($writer);
}
/**
* Renders the closing tag for the control
* This method is invoked when {@link getTagName TagName} is not empty.
* @param THtmlWriter the writer used for the rendering purpose
*/
public function renderEndTag($writer)
{
$writer->renderEndTag();
}
}
?>
|
