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<?php
/**
* TJuiControlOptions class file.
*
* @author Fabio Bas <ctrlaltca@gmail.com>
* @link https://github.com/pradosoft/prado
* @copyright Copyright © 2013-2015 PradoSoft
* @license https://github.com/pradosoft/prado/blob/master/COPYRIGHT
* @package System.Web.UI.JuiControls
*/
/**
* IJuiOptions interface
*
* IJuiOptions is the interface that must be implemented by controls using
* {@link TJuiControlOptions}.
*
* @author Fabio Bas <ctrlaltca@gmail.com>
* @package System.Web.UI.JuiControls
* @since 3.3
*/
interface IJuiOptions
{
public function getWidget();
public function getWidgetID();
public function getOptions();
public function getValidOptions();
public function getValidEvents();
}
/**
* TJuiControlOptions interface
*
* TJuiControlOptions is an helper class that can collect a list of options
* for a control. The control must implement {@link IJuiOptions}.
* The options are validated againg an array of valid options provided by the control itself.
* Since component properties are case insensitive, the array of valid options is used
* to ensure the option name has the correct case.
* The options array can then get retrieved using {@link toArray} and applied to the jQuery-ui widget.
* In addition to the options, this class will render the needed javascript to raise a callback
* for any event for which an handler is defined in the control.
*
* @author Fabio Bas <ctrlaltca@gmail.com>
* @package System.Web.UI.JuiControls
* @since 3.3
*/
class TJuiControlOptions
{
/**
* @var TMap map of javascript options.
*/
private $_options;
/**
* @var TControl parent control.
*/
private $_control;
/**
* Constructor. Set the parent control owning these options.
* @param TControl parent control
*/
public function __construct($control)
{
$this->setControl($control);
}
/**
* Sets the parent control.
* @param TControl $control
* @throws THttpException
*/
public function setControl($control)
{
if(!$control instanceof IJuiOptions)
throw new THttpException(500,'juioptions_control_invalid',$control->ID);
$this->_control=$control;
}
/**
* Sets a named options with a value. Options are used to store and retrive
* named values for the javascript control.
* @param string option name.
* @param mixed option value.
* @throws THttpException
*/
public function __set($name,$value)
{
if($this->_options===null)
$this->_options=array();
foreach($this->_control->getValidOptions() as $option)
{
if(0 == strcasecmp($name, $option))
{
$low = strtolower($value);
if($low === 'null')
{
$this->_options[$option] = null;
} elseif($low === 'true') {
$this->_options[$option] = true;
} elseif($low === 'false') {
$this->_options[$option] = false;
} elseif(is_numeric($value)) {
// trick to get float or integer automatically when needed
$this->_options[$option] = $value + 0;
} elseif(substr($low,0,8)=='function') {
$this->_options[$option] = new TJavaScriptLiteral($value);
} else {
$this->_options[$option] = $value;
}
return;
}
}
throw new THttpException(500,'juioptions_option_invalid',$this->_control->ID, $name);
}
/**
* Gets an option named value. Options are used to store and retrive
* named values for the base active controls.
* @param string option name.
* @return mixed options value or null if not set.
*/
public function __get($name)
{
if($this->_options===null)
$this->_options=array();
foreach($this->_control->getValidOptions() as $option)
{
if(0 == strcasecmp($name, $option) && isset($this->_options[$option]))
{
return $this->_options[$option];
}
}
return null;
}
/**
* Only serialize the options itself, not the corresponding parent control.
* @return mixed array with the names of all variables of that object that should be serialized.
*/
public function __sleep() {
return array('_options');
}
/**
* @return Array of active control options
*/
public function toArray()
{
$ret= ($this->_options===null) ? array() : $this->_options;
foreach($this->_control->getValidEvents() as $event)
if($this->_control->hasEventHandler('on'.$event))
$ret[$event]=new TJavaScriptLiteral("function( event, ui ) { Prado.JuiCallback(".TJavascript::encode($this->_control->getUniqueID()).", ".TJavascript::encode($event).", event, ui, this); }");
return $ret;
}
/**
* Raise the specific callback event handler of the target control.
* @param mixed callback parameters
*/
public function raiseCallbackEvent($param)
{
$callbackParam=$param->CallbackParameter;
if(isset($callbackParam->event))
{
$eventName = 'On'.ucfirst($callbackParam->event);
if($this->_control->hasEventHandler($eventName))
{
$this->_control->$eventName( new TJuiEventParameter(
$this->_control->getResponse(),
isset($callbackParam->ui) ? $callbackParam->ui : null)
);
}
}
}
}
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