www.gusucode.com > PHP条码扫描管理系统 v1.0PHP源码程序 > PHP条码扫描管理系统 v1.0/wltmglxt_v1.0/wltmglxt_v1.0/upload/framework/zii/widgets/grid/CCheckBoxColumn.php
<?php
/**
* CCheckBoxColumn class file.
*
* @author Qiang Xue <qiang.xue@gmail.com>
* @link http://www.yiiframework.com/
* @copyright 2008-2013 Yii Software LLC
* @license http://www.yiiframework.com/license/
*/
Yii::import('zii.widgets.grid.CGridColumn');
/**
* CCheckBoxColumn represents a grid view column of checkboxes.
*
* CCheckBoxColumn supports no checking (read-only), single check and multiple checking.
* The mode is determined according to {@link selectableRows}. When in multiple checking mode, the header cell will display
* an additional checkbox, clicking on which will check or uncheck all of the checkboxes in the data cells.
* The header cell can be customized by {@link headerTemplate}.
*
* Additionally selecting a checkbox can select a grid view row (depending on {@link CGridView::selectableRows} value) if
* {@link selectableRows} is null (default).
*
* By default, the checkboxes rendered in data cells will have the values that are the same as
* the key values of the data model. One may change this by setting either {@link name} or
* {@link value}.
*
* @author Qiang Xue <qiang.xue@gmail.com>
* @package zii.widgets.grid
* @since 1.1
*/
class CCheckBoxColumn extends CGridColumn
{
/**
* @var string the attribute name of the data model. The corresponding attribute value will be rendered
* in each data cell as the checkbox value. Note that if {@link value} is specified, this property will be ignored.
* @see value
*/
public $name;
/**
* @var string a PHP expression that will be evaluated for every data cell and whose result will be rendered
* in each data cell as the checkbox value. In this expression, you can use the following variables:
* <ul>
* <li><code>$row</code> the row number (zero-based)</li>
* <li><code>$data</code> the data model for the row</li>
* <li><code>$this</code> the column object</li>
* </ul>
* The PHP expression will be evaluated using {@link evaluateExpression}.
*
* A PHP expression can be any PHP code that has a value. To learn more about what an expression is,
* please refer to the {@link http://www.php.net/manual/en/language.expressions.php php manual}.
*/
public $value;
/**
* @var string a PHP expression that will be evaluated for every data cell and whose result will
* determine if checkbox for each data cell is checked. In this expression, you can use the following variables:
* <ul>
* <li><code>$row</code> the row number (zero-based)</li>
* <li><code>$data</code> the data model for the row</li>
* <li><code>$this</code> the column object</li>
* </ul>
* The PHP expression will be evaluated using {@link evaluateExpression}.
*
* A PHP expression can be any PHP code that has a value. To learn more about what an expression is,
* please refer to the {@link http://www.php.net/manual/en/language.expressions.php php manual}.
* @since 1.1.4
*/
public $checked;
/**
* @var string a PHP expression that will be evaluated for every data cell and whose result will
* determine if checkbox for each data cell is disabled. In this expression, you can use the following variables:
* <ul>
* <li><code>$row</code> the row number (zero-based)</li>
* <li><code>$data</code> the data model for the row</li>
* <li><code>$this</code> the column object</li>
* </ul>
* The PHP expression will be evaluated using {@link evaluateExpression}.
*
* A PHP expression can be any PHP code that has a value. To learn more about what an expression is,
* please refer to the {@link http://www.php.net/manual/en/language.expressions.php php manual}.
*
* Note that expression result will overwrite value set with <code>checkBoxHtmlOptions['disabled']</code>.
* @since 1.1.13
*/
public $disabled;
/**
* @var array the HTML options for the data cell tags.
*/
public $htmlOptions=array('class'=>'checkbox-column');
/**
* @var array the HTML options for the header cell tag.
*/
public $headerHtmlOptions=array('class'=>'checkbox-column');
/**
* @var array the HTML options for the footer cell tag.
*/
public $footerHtmlOptions=array('class'=>'checkbox-column');
/**
* @var array the HTML options for the checkboxes.
*/
public $checkBoxHtmlOptions=array();
/**
* @var integer the number of rows that can be checked.
* Possible values:
* <ul>
* <li>0 - the state of the checkbox cannot be changed (read-only mode)</li>
* <li>1 - only one row can be checked. Checking a checkbox has nothing to do with selecting the row</li>
* <li>2 or more - multiple checkboxes can be checked. Checking a checkbox has nothing to do with selecting the row</li>
* <li>null - {@link CGridView::selectableRows} is used to control how many checkboxes can be checked.
* Checking a checkbox will also select the row.</li>
* </ul>
* You may also call the JavaScript function <code>$(gridID).yiiGridView('getChecked', columnID)</code>
* to retrieve the key values of the checked rows.
* @since 1.1.6
*/
public $selectableRows=null;
/**
* @var string the template to be used to control the layout of the header cell.
* The token "{item}" is recognized and it will be replaced with a "check all" checkbox.
* By default if in multiple checking mode, the header cell will display an additional checkbox,
* clicking on which will check or uncheck all of the checkboxes in the data cells.
* See {@link selectableRows} for more details.
* @since 1.1.11
*/
public $headerTemplate='{item}';
/**
* Initializes the column.
* This method registers necessary client script for the checkbox column.
*/
public function init()
{
if(isset($this->checkBoxHtmlOptions['name']))
$name=$this->checkBoxHtmlOptions['name'];
else
{
$name=$this->id;
if(substr($name,-2)!=='[]')
$name.='[]';
$this->checkBoxHtmlOptions['name']=$name;
}
$name=strtr($name,array('['=>"\\[",']'=>"\\]"));
if($this->selectableRows===null)
{
if(isset($this->checkBoxHtmlOptions['class']))
$this->checkBoxHtmlOptions['class'].=' select-on-check';
else
$this->checkBoxHtmlOptions['class']='select-on-check';
return;
}
$cball=$cbcode='';
if($this->selectableRows==0)
{
//.. read only
$cbcode="return false;";
}
elseif($this->selectableRows==1)
{
//.. only one can be checked, uncheck all other
$cbcode="jQuery(\"input:not(#\"+this.id+\")[name='$name']\").prop('checked',false);";
}
elseif(strpos($this->headerTemplate,'{item}')!==false)
{
//.. process check/uncheck all
$cball=<<<CBALL
jQuery(document).on('click','#{$this->id}_all',function() {
var checked=this.checked;
jQuery("input[name='$name']:enabled").each(function() {this.checked=checked;});
});
CBALL;
$cbcode="jQuery('#{$this->id}_all').prop('checked', jQuery(\"input[name='$name']\").length==jQuery(\"input[name='$name']:checked\").length);";
}
if($cbcode!=='')
{
$js=$cball;
$js.=<<<EOD
jQuery(document).on('click', "input[name='$name']", function() {
$cbcode
});
EOD;
Yii::app()->getClientScript()->registerScript(__CLASS__.'#'.$this->id,$js);
}
}
/**
* Returns the header cell content.
* This method will render a checkbox in the header when {@link selectableRows} is greater than 1
* or in case {@link selectableRows} is null when {@link CGridView::selectableRows} is greater than 1.
* @return string the header cell content.
* @since 1.1.16
*/
public function getHeaderCellContent()
{
if(trim($this->headerTemplate)==='')
return $this->grid->blankDisplay;
if($this->selectableRows===null && $this->grid->selectableRows>1)
$item=CHtml::checkBox($this->id.'_all',false,array('class'=>'select-on-check-all'));
elseif($this->selectableRows>1)
$item=CHtml::checkBox($this->id.'_all',false);
else
$item=parent::getHeaderCellContent();
return strtr($this->headerTemplate,array(
'{item}'=>$item,
));
}
/**
* Returns the data cell content.
* This method renders a checkbox in the data cell.
* @param integer $row the row number (zero-based)
* @return string the data cell content.
* @since 1.1.16
*/
public function getDataCellContent($row)
{
$data=$this->grid->dataProvider->data[$row];
if($this->value!==null)
$value=$this->evaluateExpression($this->value,array('data'=>$data,'row'=>$row));
elseif($this->name!==null)
$value=CHtml::value($data,$this->name);
else
$value=$this->grid->dataProvider->keys[$row];
$checked = false;
if($this->checked!==null)
$checked=$this->evaluateExpression($this->checked,array('data'=>$data,'row'=>$row));
$options=$this->checkBoxHtmlOptions;
if($this->disabled!==null)
$options['disabled']=$this->evaluateExpression($this->disabled,array('data'=>$data,'row'=>$row));
$name=$options['name'];
unset($options['name']);
$options['value']=$value;
$options['id']=$this->id.'_'.$row;
return CHtml::checkBox($name,$checked,$options);
}
}