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<?php
/**
* TJuiSelectable class file.
*
* @author Fabio Bas <ctrlaltca[at]gmail[dot]com>
* @link http://www.pradosoft.com/
* @copyright Copyright © 2013-2014 PradoSoft
* @license http://www.pradosoft.com/license/
* @package Prado\Web\UI\JuiControls
*/
namespace Prado\Web\UI\JuiControls;
use Prado\Prado;
use Prado\Web\Javascripts\TJavaScript;
use Prado\Web\Javascripts\TJavaScriptLiteral;
use Prado\Web\UI\ActiveControls\ICallbackEventHandler;
use Prado\Web\UI\ActiveControls\TActivePanel;
use Prado\Web\UI\TTemplate;
Prado::using('System.Web.UI.JuiControls.TJuiControlAdapter');
Prado::using('System.Web.UI.ActiveControls.TActivePanel');
/**
* TJuiSelectable class.
*
* TJuiSelectable is an extension to {@link TActivePanel} based on jQuery-UI's
* {@link http://jqueryui.com/selectable/ Selectable} interaction.
* TJuiSelectable can be feed a {@link setDataSource DataSource} and will interally
* render a {@link TRepeater} that displays items in an unordered list.
* Items can be selected by clicking on them, individually or in a group.
*
* <code>
* <style>
* .ui-selecting { background: #FECA40; }
* .ui-selected { background: #F39814; color: white; }
* </style>
* <com:TJuiSelectable ID="repeater1" />
* </code>
*
* <code>
* $this->repeater1->DataSource=array('home', 'office', 'car', 'boat', 'plane');
* $this->repeater1->dataBind();
* </code>
* @author Fabio Bas <ctrlaltca[at]gmail[dot]com>
* @package Prado\Web\UI\JuiControls
* @since 3.3
*/
class TJuiSelectable extends TActivePanel implements IJuiOptions, ICallbackEventHandler
{
protected $_options;
/**
* Creates a new callback control, sets the adapter to
* TActiveControlAdapter. If you override this class, be sure to set the
* adapter appropriately by, for example, by calling this constructor.
*/
public function __construct()
{
parent::__construct();
$this->setAdapter(new TJuiControlAdapter($this));
}
/**
* Object containing defined javascript options
* @return TJuiControlOptions
*/
public function getOptions()
{
if($this->_options===null)
$this->_options=new TJuiControlOptions($this);
return $this->_options;
}
/**
* Array containing valid javascript options
* @return array()
*/
public function getValidOptions()
{
return array('appendTo', 'autoRefresh', 'cancel', 'delay', 'disabled', 'distance', 'filter', 'tolerance');
}
/**
* Array containing valid javascript events
* @return array()
*/
public function getValidEvents()
{
return array('create', 'selected', 'selecting', 'start', 'stop', 'unselected', 'unselecting');
}
/**
* @return array list of callback options.
*/
protected function getPostBackOptions()
{
$options = $this->getOptions()->toArray();
// overload the "OnStop" event to add information about the current selected items
if(isset($options['stop']))
{
$options['stop']=new TJavaScriptLiteral('function( event, ui ) { ui.index = new Array(); jQuery(\'#'.$this->getClientID().' .ui-selected\').each(function(idx, item){ ui.index.push(item.id) }); Prado.JuiCallback('.TJavascript::encode($this->getUniqueID()).', \'stop\', event, ui, this); }');
}
return $options;
}
/**
* Ensure that the ID attribute is rendered and registers the javascript code
* for initializing the active control.
*/
protected function addAttributesToRender($writer)
{
parent::addAttributesToRender($writer);
$writer->addAttribute('id',$this->getClientID());
$options=TJavascript::encode($this->getPostBackOptions());
$cs=$this->getPage()->getClientScript();
$code="jQuery('#".$this->getClientId()."_0').selectable(".$options.");";
$cs->registerEndScript(sprintf('%08X', crc32($code)), $code);
}
/**
* Raises callback event. This method is required by the {@link ICallbackEventHandler}
* interface.
* @param TCallbackEventParameter the parameter associated with the callback event
*/
public function raiseCallbackEvent($param)
{
$this->getOptions()->raiseCallbackEvent($param);
}
/**
* Raises the OnCreate event
* @param object $params event parameters
*/
public function onCreate ($params)
{
$this->raiseEvent('OnCreate', $this, $params);
}
/**
* Raises the OnSelected event
* @param object $params event parameters
*/
public function onSelected ($params)
{
$this->raiseEvent('OnSelected', $this, $params);
}
/**
* Raises the OnSelecting event
* @param object $params event parameters
*/
public function onSelecting ($params)
{
$this->raiseEvent('OnSelecting', $this, $params);
}
/**
* Raises the OnStart event
* @param object $params event parameters
*/
public function onStart ($params)
{
$this->raiseEvent('OnStart', $this, $params);
}
/**
* Raises the OnStop event
* @param object $params event parameters
*/
public function onStop ($params)
{
$this->raiseEvent('OnStop', $this, $params);
}
/**
* Raises the OnUnselected event
* @param object $params event parameters
*/
public function onUnselected ($params)
{
$this->raiseEvent('OnUnselected', $this, $params);
}
/**
* Raises the OnUnselecting event
* @param object $params event parameters
*/
public function onUnselecting ($params)
{
$this->raiseEvent('OnUnselecting', $this, $params);
}
/**
* @var ITemplate template for repeater items
*/
private $_repeater=null;
/**
* @param array data source for Selectables.
*/
public function setDataSource($data)
{
$this->getSelectables()->setDataSource($data);
}
/**
* Overrides parent implementation. Callback {@link renderSelectables()} when
* page's IsCallback property is true.
*/
public function dataBind()
{
parent::dataBind();
if($this->getPage()->getIsCallback())
$this->renderSelectables($this->getResponse()->createHtmlWriter());
}
/**
* @return TRepeater suggestion list repeater
*/
public function getSelectables()
{
if($this->_repeater===null)
$this->_repeater = $this->createRepeater();
return $this->_repeater;
}
/**
* @return TRepeater new instance of TRepater to render the list of Selectables.
*/
protected function createRepeater()
{
$repeater = Prado::createComponent('System.Web.UI.WebControls.TRepeater');
$repeater->setHeaderTemplate(new TJuiSelectableTemplate('<ul id="'.$this->getClientId().'_0'.'">'));
$repeater->setFooterTemplate(new TJuiSelectableTemplate('</ul>'));
$repeater->setItemTemplate(new TTemplate('<li id="<%# $this->ItemIndex %>"><%# $this->DataItem %></li>',null));
$repeater->setEmptyTemplate(new TJuiSelectableTemplate('<ul></ul>'));
$this->getControls()->add($repeater);
return $repeater;
}
}
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