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<?php
class TActiveRatingList extends TActiveRadioButtonList
{
private $_ratingImages = array();
public function __construct()
{
parent::__construct();
$this->setRepeatDirection(TRepeatDirection::Horizontal);
}
/**
* @return boolean whether the items in the column can be edited. Defaults to false.
*/
public function getReadOnly()
{
return $this->getViewState('ReadOnly',false);
}
public function setRepeatLayout($value)
{
if($value!==TRepeatLayout::Table)
throw new TInvalidDataValueException('ratinglist_table_layout_only');
else
parent::setRepeatLayout($value);
}
/**
* @param boolean whether the items in the column can be edited
*/
public function setReadOnly($value)
{
$this->setViewState('ReadOnly',TPropertyValue::ensureBoolean($value),false);
}
public function getRating()
{
return $this->getViewState('Rating',0);
}
public function setRating($value)
{
$this->setViewState('Rating', TPropertyValue::ensureFloat($value),0);
}
public function setSelectedIndex($value)
{
$canUpdate = $this->getActiveControl()->getEnableUpdate();
$this->getActiveControl()->setEnableUpdate(false);
parent::setSelectedIndex($value);
$this->getActiveControl()->setEnableUpdate($canUpdate);
if($this->getActiveControl()->canUpdateClientSide())
$this->callClientFunction('setRating',$value);
}
protected function callClientFunction($func,$value)
{
$client = $this->getPage()->getCallbackClient();
$code = $this->getClientClassName().'.'.$func;
$client->callClientFunction($code,array($this,$value));
}
/**
* @return string caption text.
*/
public function getCaptionID()
{
return $this->getViewState('CaptionID', '');
}
/**
* @param string caption text
*/
public function setCaptionID($value)
{
$this->setViewState('CaptionID', $value, '');
}
public function setEnabled($value)
{
parent::setEnabled($value);
if($this->getActiveControl()->canUpdateClientSide())
$this->callClientFunction('setEnabled',$value);
}
/**
* @param string set the rating style
*/
public function setRatingStyle($value)
{
$this->setViewState('RatingStyle', $value, 'default');
}
/**
* @return TRatingListStyle current rating style
*/
public function getRatingStyle()
{
return $this->getViewState('RatingStyle', 'default');
}
public function setHalfRatingLimit($value)
{
$this->setViewState('HalfRating',
TPropertyValue::ensureArray($value), array(0.3, 0.7));
}
public function getHalfRatingLimit()
{
return $this->getViewState('HalfRating', array(0.3, 0.7));
}
protected function getRatingStyleCssClass()
{
return 'TRatingList_'.$this->getRatingStyle();
}
protected function getPostBackOptions()
{
$options = parent::getPostBackOptions();
$options['Style'] = $this->getRatingStyleCssClass();
$options['CaptionID'] = $this->getCaptionControl();
$options['SelectedIndex'] = $this->getSelectedIndex();
return $options;
}
/**
* Registers the javascript code for initializing the active control.
*/
protected function renderClientControlScript($writer)
{
if($this->getReadOnly()===false)
parent::renderClientControlScript($writer);
}
protected function getCaptionControl()
{
if(($id=$this->getCaptionID())!=='')
{
if($control=$this->getParent()->findControl($id))
{
if($control->getVisible(true))
return $control->getClientID();
}
else
return $id;
}
return '';
}
protected function publishRatingListStyle($style)
{
$cs = $this->getPage()->getClientScript();
$stylesheet = 'System.Web.Javascripts.ratings.'.$style;
if(($cssFile=Prado::getPathOfNamespace($stylesheet,'.css'))===null)
throw new TConfigurationException('ratinglist_stylesheet_not_found',$style);
$url = $this->publishFilePath($cssFile);
if(!$cs->isStyleSheetFileRegistered($style))
$cs->registerStyleSheetFile($style, $url);
return $url;
}
protected function publishRatingListImages($style, $fileExt='.png')
{
$images['blank'] = "System.Web.Javascripts.ratings.{$style}_blank";
$images['selected'] = "System.Web.Javascripts.ratings.{$style}_selected";
$images['half'] = "System.Web.Javascripts.ratings.{$style}_half";
$images['combined'] = "System.Web.Javascripts.ratings.{$style}_combined";
$files = array();
foreach($images as $type => $image)
{
if(($file=Prado::getPathOfNamespace($image, $fileExt))===null)
throw TConfigurationException('ratinglist_image_not_found',$image);
$files[$type] = $this->publishFilePath($file);
}
return $files;
}
public function render($writer)
{
if($this->getReadOnly())
{
$writer->addAttribute('class', $this->getRatingStyleCssClass());
$writer->addAttribute('title', $this->getRating());
}
parent::render($writer);
}
/**
* @param THtmlWriter writer
*/
public function onPreRender($param)
{
parent::onPreRender($param);
$this->publishRatingListStyle($this->getRatingStyle());
$this->_ratingImages = $this->publishRatingListImages($this->getRatingStyle());
}
public function renderItem($writer,$repeatInfo,$itemType,$index)
{
if($this->getReadOnly())
$this->renderStaticRating($writer, $repeatInfo, $itemType, $index);
else
parent::renderItem($writer, $repeatInfo, $itemType, $index);
}
protected function renderStaticRating($writer, $repeatInfo, $itemType, $index)
{
$image = new TImage;
$image->setImageUrl($this->_ratingImages[$this->getRatingImageType($index)]);
$image->setAlternateText($this->getRating());
$image->render($writer);
}
protected function getRatingImageType($index)
{
$rating = floatval($this->getRating());
$int = intval($rating);
$limit = $this->getHalfRatingLimit();
if($index < $int || ($rating < $index+1 && $rating > $index+$limit[1]))
return 'selected';
if($rating >= $index+$limit[0] && $rating <= $index+$limit[1])
return 'half';
return 'blank';
}
/**
* Gets the name of the javascript class responsible for performing postback for this control.
* This method overrides the parent implementation.
* @return string the javascript class name
*/
protected function getClientClassName()
{
return 'Prado.WebUI.TRatingList';
}
}
?>
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