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<?php
/*
* Created on 7/05/2006
*/
class TAutoComplete extends TActiveTextBox implements INamingContainer
{
/**
* @var ITemplate template for repeater items
*/
private $_repeater=null;
private $_resultPanel=null;
public function getSeparator()
{
return $this->getViewState('tokens', '');
}
public function setSeparator($value)
{
$this->setViewState('tokens', TPropertyValue::ensureString($value), '');
}
public function getFrequency()
{
return $this->getViewState('frequency', '');
}
public function setFrequency($value)
{
$this->setViewState('frequency', TPropertyValue::ensureFloat($value),'');
}
public function getMinChars()
{
return $this->getViewState('minChars','');
}
public function setMinChars($value)
{
$this->setViewState('minChars', TPropertyValue::ensureInteger($value), '');
}
/**
* Raises the callback event. This method is required by {@link
* ICallbackEventHandler} interface. If {@link getCausesValidation
* CausesValidation} is true, it will invoke the page's {@link TPage::
* validate validate} method first. It will raise {@link onCallback
* OnCallback} event and then the {@link onClick OnClick} event. This method
* is mainly used by framework and control developers.
* @param TCallbackEventParameter the event parameter
*/
public function raiseCallbackEvent($param)
{
$this->onCallback($param);
}
/**
* This method is invoked when a callback is requested. The method raises
* 'OnCallback' event to fire up the event handlers. If you override this
* method, be sure to call the parent implementation so that the event
* handler can be invoked.
* @param TCallbackEventParameter event parameter to be passed to the event handlers
*/
public function onCallback($param)
{
$this->raiseEvent('OnCallback', $this, $param);
}
public function setDataSource($data)
{
$this->getSuggestions()->setDataSource($data);
}
public function getResultPanel()
{
if(is_null($this->_resultPanel))
$this->_resultPanel = $this->createResultPanel();
return $this->_resultPanel;
}
protected function createResultPanel()
{
$panel = Prado::createComponent('System.Web.UI.WebControls.TPanel');
$this->getControls()->add($panel);
$panel->setID('result');
return $panel;
}
/**
* @return TRepeater suggestion list repeater
*/
public function getSuggestions()
{
if(is_null($this->_repeater))
$this->_repeater = $this->createRepeater();
return $this->_repeater;
}
/**
*
*/
protected function createRepeater()
{
$repeater = Prado::createComponent('System.Web.UI.WebControls.TRepeater');
$repeater->setHeaderTemplate(new TAutoCompleteTemplate('<ul>'));
$repeater->setFooterTemplate(new TAutoCompleteTemplate('</ul>'));
$repeater->setItemTemplate(new TTemplate('<li><%# $this->DataItem %></li>',null));
$this->getControls()->add($repeater);
return $repeater;
}
public function renderEndTag($writer)
{
$this->getPage()->getClientScript()->registerPradoScript('effects');
parent::renderEndTag($writer);
$this->renderResultPanel($writer);
}
public function renderResultPanel($writer)
{
$this->getResultPanel()->render($writer);
}
public function render($writer)
{
if($this->getPage()->getIsCallback())
{
if($this->getActiveControl()->canUpdateClientSide())
$this->renderSuggestions($writer);
}
else
parent::render($writer);
}
protected function renderSuggestions($writer)
{
if($this->getSuggestions()->getItems()->getCount() > 0)
{
$this->getSuggestions()->render($writer);
$boundary = $writer->getWriter()->getBoundary();
$this->getResponse()->getAdapter()->setResponseData($boundary);
}
}
/**
* @return array list of callback options.
*/
protected function getAutoCompleteOptions()
{
$this->getActiveControl()->getClientSide()->setEnablePageStateUpdate(false);
if(strlen($string = $this->getSeparator()))
{
$token = preg_split('//', $string, -1, PREG_SPLIT_NO_EMPTY);
$options['tokens'] = TJavascript::encode($token,false);
}
if($this->getAutoPostBack())
$options = array_merge($options,$this->getPostBackOptions());
$options['ResultPanel'] = $this->getResultPanel()->getClientID();
$options['ID'] = $this->getClientID();
$options['EventTarget'] = $this->getUniqueID();
return $options;
}
/**
* Override parent implementation, no javascript is rendered here instead
* the javascript required for active control is registered in {@link addAttributesToRender}.
*/
protected function renderClientControlScript($writer)
{
}
/**
* Ensure that the ID attribute is rendered and registers the javascript code
* for initializing the active control.
*/
public function addAttributesToRender($writer)
{
parent::addAttributesToRender($writer);
$writer->addAttribute('id',$this->getClientID());
$this->getActiveControl()->registerCallbackClientScript(
$this->getClientClassName(), $this->getAutoCompleteOptions());
}
/**
* @return string corresponding javascript class name for this TActiveButton.
*/
protected function getClientClassName()
{
return 'Prado.WebUI.TAutoComplete';
}
}
/**
* TWizardSideBarTemplate class.
* TWizardSideBarTemplate is the default template for wizard sidebar.
* @author Qiang Xue <qiang.xue@gmail.com>
* @version $Revision: $ $Date: $
* @package System.Web.UI.WebControls
* @since 3.0
*/
class TAutoCompleteTemplate extends TComponent implements ITemplate
{
private $_template;
public function __construct($template)
{
$this->_template = $template;
}
/**
* Instantiates the template.
* It creates a {@link TDataList} control.
* @param TControl parent to hold the content within the template
*/
public function instantiateIn($parent)
{
$parent->getControls()->add($this->_template);
}
}
?>
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