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
|
<?php
/**
* THyperLink class file.
*
* @author Qiang Xue <qiang.xue@gmail.com>
* @link http://www.xisc.com/
* @copyright Copyright © 2004-2005, Qiang Xue
* @license http://www.opensource.org/licenses/bsd-license.php BSD License
* @version $Revision: $ $Date: $
* @package System.Web.UI.WebControls
*/
/**
* THyperLink class
*
* THyperLink displays a hyperlink on a page. The hyperlink URL is specified
* via the {@link setNavigateUrl NavigateUrl} property, and link text is via
* the {@link setText Text} property. It is also possible to display an image
* by setting the {@link setImageUrl ImageUrl} property. In this case,
* {@link getText Text} is displayed as the alternate text of the image.
* The link target is specified via the {@link setTarget Target} property.
* If both {@link getImageUrl ImageUrl} and {@link getText Text} are empty,
* the content enclosed within the control tag will be rendered.
*
* @author Qiang Xue <qiang.xue@gmail.com>
* @version $Revision: $ $Date: $
* @package System.Web.UI.WebControls
* @since 3.0
*/
class THyperLink extends TWebControl
{
/**
* @return string tag name of the hyperlink
*/
protected function getTagName()
{
return 'a';
}
/**
* Adds attributes related to a hyperlink element to renderer.
* @param THtmlWriter the writer used for the rendering purpose
*/
protected function addAttributesToRender($writer)
{
$isEnabled=$this->getEnabled(true);
if($this->getEnabled() && !$isEnabled)
$writer->addAttribute('disabled','disabled');
parent::addAttributesToRender($writer);
if(($url=$this->getNavigateUrl())!=='' && $isEnabled)
$writer->addAttribute('href',$url);
if(($target=$this->getTarget())!=='')
$writer->addAttribute('target',$target);
}
/**
* Renders the body content of the hyperlink.
* @param THtmlWriter the writer for rendering
*/
public function renderContents($writer)
{
if(($imageUrl=$this->getImageUrl())==='')
{
if(($text=$this->getText())!=='')
$writer->write(THttpUtility::htmlEncode($text));
else
parent::renderContents($writer);
}
else
{
$image=Prado::createComponent('System.Web.UI.WebControls.TImage');
$image->setImageUrl($imageUrl);
if(($toolTip=$this->getToolTip())!=='')
$image->setToolTip($toolTip);
if(($text=$this->getText())!=='')
$image->setAlternateText(THttpUtility::htmlEncode($text));
$image->renderControl($writer);
}
}
/**
* @return string the text caption of the THyperLink
*/
public function getText()
{
return $this->getViewState('Text','');
}
/**
* Sets the text caption of the THyperLink.
* @param string the text caption to be set
*/
public function setText($value)
{
$this->setViewState('Text',$value,'');
}
/**
* @return string the location of the image file for the THyperLink
*/
public function getImageUrl()
{
return $this->getViewState('ImageUrl','');
}
/**
* Sets the location of image file of the THyperLink.
* @param string the image file location
*/
public function setImageUrl($value)
{
$this->setViewState('ImageUrl',$value,'');
}
/**
* @return string the URL to link to when the THyperLink component is clicked.
*/
public function getNavigateUrl()
{
return $this->getViewState('NavigateUrl','');
}
/**
* Sets the URL to link to when the THyperLink component is clicked.
* @param string the URL
*/
public function setNavigateUrl($value)
{
$this->setViewState('NavigateUrl',$value,'');
}
/**
* @return string the target window or frame to display the Web page content linked to when the THyperLink component is clicked.
*/
public function getTarget()
{
return $this->getViewState('Target','');
}
/**
* Sets the target window or frame to display the Web page content linked to when the THyperLink component is clicked.
* @param string the target window, valid values include '_blank', '_parent', '_self', '_top' and empty string.
*/
public function setTarget($value)
{
$this->setViewState('Target',$value,'');
}
}
?>
|
