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<?php
/**
* CJuiDatePicker class file.
*
* @author Sebastian Thierer <sebathi@gmail.com>
* @link http://www.yiiframework.com/
* @copyright Copyright &copy; 2008-2011 Yii Software LLC
* @license http://www.yiiframework.com/license/
*/

Yii::import('zii.widgets.jui.CJuiInputWidget');

/**
* CJuiDatePicker displays a datepicker.
*
* CJuiDatePicker encapsulates the {@link http://jqueryui.com/demos/datepicker/ JUI
* datepicker} plugin.
*
* To use this widget, you may insert the following code in a view:
* <pre>
* $this->widget('zii.widgets.jui.CJuiDatePicker', array(
* 'name'=>'publishDate',
* // additional javascript options for the date picker plugin
* 'options'=>array(
* 'showAnim'=>'fold',
* ),
* 'htmlOptions'=>array(
* 'style'=>'height:20px;'
* ),
* ));
* </pre>
*
* By configuring the {@link options} property, you may specify the options
* that need to be passed to the JUI datepicker plugin. Please refer to
* the {@link http://jqueryui.com/demos/datepicker/ JUI datepicker} documentation
* for possible options (name-value pairs).
*
* @author Sebastian Thierer <sebathi@gmail.com>
* @version $Id$
* @package zii.widgets.jui
* @since 1.1
*/
class CJuiDatePicker extends CJuiInputWidget
{
/**
* @var string the locale ID (eg 'fr', 'de') for the language to be used by the date picker.
* If this property is not set, I18N will not be involved. That is, the date picker will show in English.
* You can force English language by setting the language attribute as '' (empty string)
*/
public $language;

/**
* @var string The i18n Jquery UI script file. It uses scriptUrl property as base url.
*/
public $i18nScriptFile = 'jquery-ui-i18n.min.js';

/**
* @var array The default options called just one time per request. This options will alter every other CJuiDatePicker instance in the page.
* It has to be set at the first call of CJuiDatePicker widget in the request.
*/
public $defaultOptions;

/**
* @var boolean If true, shows the widget as an inline calendar and the input as a hidden field. Use the onSelect event to update the hidden field
*/
public $flat = false;

/**
* Run this widget.
* This method registers necessary javascript and renders the needed HTML code.
*/
public function run()
{

list($name,$id)=$this->resolveNameID();

if(isset($this->htmlOptions['id']))
$id=$this->htmlOptions['id'];
else
$this->htmlOptions['id']=$id;
if(isset($this->htmlOptions['name']))
$name=$this->htmlOptions['name'];

if ($this->flat===false)
{
if($this->hasModel())
echo CHtml::activeTextField($this->model,$this->attribute,$this->htmlOptions);
else
echo CHtml::textField($name,$this->value,$this->htmlOptions);
}
else
{
if($this->hasModel())
{
echo CHtml::activeHiddenField($this->model,$this->attribute,$this->htmlOptions);
$attribute = $this->attribute;
$this->options['defaultDate'] = $this->model->$attribute;
}
else
{
echo CHtml::hiddenField($name,$this->value,$this->htmlOptions);
$this->options['defaultDate'] = $this->value;
}

if (!isset($this->options['onSelect']))
$this->options['onSelect']=new CJavaScriptExpression("function( selectedDate ) { jQuery('#{$id}').val(selectedDate);}");

$id = $this->htmlOptions['id'] = $id.'_container';
$this->htmlOptions['name'] = $name.'_container';

echo CHtml::tag('div', $this->htmlOptions, '');
}

$options=CJavaScript::encode($this->options);
$js = "jQuery('#{$id}').datepicker($options);";

if ($this->language!='' && $this->language!='en')
{
$this->registerScriptFile($this->i18nScriptFile);
$js = "jQuery('#{$id}').datepicker(jQuery.extend({showMonthAfterYear:false}, jQuery.datepicker.regional['{$this->language}'], {$options}));";
}

$cs = Yii::app()->getClientScript();

if (isset($this->defaultOptions))
{
$this->registerScriptFile($this->i18nScriptFile);
$cs->registerScript(__CLASS__, $this->defaultOptions!==null?'jQuery.datepicker.setDefaults('.CJavaScript::encode($this->defaultOptions).');':'');
}
$cs->registerScript(__CLASS__.'#'.$id, $js);

}
}
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