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