summaryrefslogtreecommitdiff
path: root/framework/Web/UI/ActiveControls/TInPlaceTextBox.php
blob: c45470efbcfb602dd418b25dc2e481833befb29a (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
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
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
<?php
/**
 * TInPlaceTextBox class file.
 *
 * @author Wei Zhuo <weizhuo[at]gamil[dot]com>
 * @link http://www.pradosoft.com/
 * @copyright Copyright &copy; 2005-2014 PradoSoft
 * @license http://www.pradosoft.com/license/
 * @package Prado\Web\UI\ActiveControls
 */

namespace Prado\Web\UI\ActiveControls;

use Prado\Prado;
use Prado\TPropertyValue;
use Prado\Web\UI\WebControls\TTextBox;
use Prado\Web\UI\WebControls\TWebControl;


/**
 * TInPlaceTextBox Class
 * *
 * TInPlaceTextBox is a component rendered as a label and allows its
 * contents to be edited by changing the label to a textbox when
 * the label is clicked or when another control or html element with
 * ID given by {@link setEditTriggerControlID EditTriggerControlID} is clicked.
 *
 * If the {@link OnLoadingText} event is handled, a callback request is
 * made when the label is clicked, while the request is being made the
 * textbox is disabled from editing. The {@link OnLoadingText} event allows
 * you to update the content of the textbox before the client is allowed
 * to edit the content. After the callback request returns successfully,
 * the textbox is enabled and the contents is then allowed to be edited.
 *
 * Once the textbox loses focus, if {@link setAutoPostBack AutoPostBack}
 * is true and the textbox content has changed, a callback request is made and
 * the {@link OnTextChanged} event is raised like that of the TActiveTextBox.
 * During the request, the textbox is disabled.
 *
 * After the callback request returns sucessfully, the textbox is enabled.
 * If the {@link setAutoHideTextBox AutoHideTextBox} property is true, then
 * the textbox will be hidden and the label is then shown.
 *
 * Since 3.1.2, you can set the {@link setReadOnly ReadOnly} property to make
 * the control not editable. This property can be also changed on callback
 *
 * @author Wei Zhuo <weizhuo[at]gmail[dot]com>
 * @package Prado\Web\UI\ActiveControls
 * @since 3.1
 */
class TInPlaceTextBox extends TActiveTextBox
{
	/**
	 * Sets the auto post back to true by default.
	 */
	public function __construct()
	{
		parent::__construct();
		$this->setAutoPostBack(true);
	}

	/**
	 * @param boolean true to hide the textbox after losing focus.
	 */
	public function setAutoHideTextBox($value)
	{
		$this->setViewState('AutoHide', TPropertyValue::ensureBoolean($value), true);
	}

	/**
	 * @return boolean true will hide the textbox after losing focus.
	 */
	public function getAutoHideTextBox()
	{
		return $this->getViewState('AutoHide', true);
	}

	/**
	 * @param boolean true to display the edit textbox
	 */
	public function setDisplayTextBox($value)
	{
		$value = TPropertyValue::ensureBoolean($value);
		$this->setViewState('DisplayTextBox', $value,false);
		if($this->getActiveControl()->canUpdateClientSide())
			$this->callClientFunction('setDisplayTextBox',$value);
	}

	/**
	 * @return boolean true to display the edit textbox
	 */
	public function getDisplayTextBox()
	{
		return $this->getViewState('DisplayTextBox', false);
	}

	/**
	 * Calls the client-side static method for this control class.
	 * @param string static method name
	 * @param mixed method parmaeter
	 */
	protected function callClientFunction($func,$value)
	{
		$client = $this->getPage()->getCallbackClient();
		$code = $this->getClientClassName().'.'.$func;
		$client->callClientFunction($code,array($this,$value));
	}

	/**
	 * @param string ID of the control that can trigger to edit the textbox
	 */
	public function setEditTriggerControlID($value)
	{
		$this->setViewState('EditTriggerControlID', $value);
	}

	/**
	 * @return string ID of the control that can trigger to edit the textbox
	 */
	public function getEditTriggerControlID()
	{
		return $this->getViewState('EditTriggerControlID');
	}

	/**
	 * @return string edit trigger control client ID.
	 */
	protected function getExternalControlID()
	{
		$extID = $this->getEditTriggerControlID();
		if($extID===null) return '';
		if(($control = $this->findControl($extID))!==null)
			return $control->getClientID();
		return $extID;
	}

	/**
	 * On callback response, the inner HTMl of the label and the
	 * value of the textbox is updated
	 * @param string the text value of the label
	 */
	public function setText($value)
	{
		TTextBox::setText($value);
		if($this->getActiveControl()->canUpdateClientSide())
		{
			$client = $this->getPage()->getCallbackClient();
			$client->update($this->getLabelClientID(), $value);
			$client->setValue($this, $value);
		}
	}

	/**
	 * Update ClientSide Readonly property
	 * @param boolean value
	 * @since 3.1.2
	 */
	public function setReadOnly ($value)
	{
		$value=TPropertyValue::ensureBoolean($value);
		TTextBox::setReadOnly($value);
		if ($this->getActiveControl()->canUpdateClientSide())
		{
			$this->callClientFunction('setReadOnly', $value);
		}
	}

	/**
	 * @return string tag name of the label.
	 */
	protected function getTagName()
	{
		return 'span';
	}

	/**
	 * Renders the body content of the label.
	 * @param THtmlWriter the writer for rendering
	 */
	public function renderContents($writer)
	{
		if(($text=$this->getText())==='')
			parent::renderContents($writer);
		else
			$writer->write($text);
	}

	/**
	 * @return string label client ID
	 */
	protected function getLabelClientID()
	{
		return $this->getClientID().'__label';
	}

	/**
	 * This method is invoked when a callback is requested. The method raises
	 * 'OnCallback' event to fire up the event handlers. If you override this
	 * method, be sure to call the parent implementation so that the event
	 * handler can be invoked.
	 * @param TCallbackEventParameter event parameter to be passed to the event handlers
	 */
	public function onCallback($param)
	{
		$action = $param->getCallbackParameter();
		if(is_array($action) && $action[0] === '__InlineEditor_loadExternalText__')
		{
			$parameter = new TCallbackEventParameter($this->getResponse(), $action[1]);
			$this->onLoadingText($parameter);
		}
		$this->raiseEvent('OnCallback', $this, $param);
	}

	/**
	 * @return array callback options.
	 */
	protected function getPostBackOptions()
	{
		$options = parent::getPostBackOptions();
		$options['ID'] = $this->getLabelClientID();
		$options['TextBoxID'] = $this->getClientID();
		$options['ExternalControl'] = $this->getExternalControlID();
		$options['AutoHide'] = $this->getAutoHideTextBox() == false ? '' : true;
		$options['AutoPostBack'] = $this->getAutoPostBack() == false ? '' : true;
		$options['Columns'] = $this->getColumns();
		if($this->getTextMode()==='MultiLine')
		{
			$options['Rows'] = $this->getRows();
			$options['Wrap'] = $this->getWrap()== false ? '' : true;
		}
		else
		{
			$length = $this->getMaxLength();
			$options['MaxLength'] = $length > 0 ? $length : '';
		}

		if($this->hasEventHandler('OnLoadingText'))
			$options['LoadTextOnEdit'] = true;

		$options['ReadOnly']=$this->getReadOnly();
		return $options;
	}

	/**
	 * Raised when editing the content is requsted to be loaded from the
	 * server side.
	 * @param TCallbackEventParameter event parameter to be passed to the event handlers
	 */
	public function onLoadingText($param)
	{
		$this->raiseEvent('OnLoadingText',$this,$param);
	}

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

	/**
	 * Ensure that the ID attribute is rendered and registers the javascript code
	 * for initializing the active control.
	 */
	protected function addAttributesToRender($writer)
	{
		//calls the TWebControl to avoid rendering other attribute normally render for a textbox.
		TWebControl::addAttributesToRender($writer);
		$writer->addAttribute('id',$this->getLabelClientID());
		$this->getActiveControl()->registerCallbackClientScript(
			$this->getClientClassName(), $this->getPostBackOptions());
	}

	/**
	 * Registers CSS and JS.
	 * This method is invoked right before the control rendering, if the control is visible.
	 * @param mixed event parameter
	 */
	public function onPreRender($param)
	{
		parent::onPreRender($param);
		$this->registerClientScript();
	}

	/**
	 * Registers the relevant JavaScript.
	 */
	protected function registerClientScript()
	{
		$cs=$this->getPage()->getClientScript();
		$cs->registerPradoScript('inlineeditor');
	}
}