<?php
/**
* Element.php - A jQuery selector
*
* This class is used to create client side requests to the Jaxon functions and callable objects.
*
* When inserted into a Jaxon response, an Element object must be converted to the corresponding jQuery code.
* Therefore, the Element class implements the JsonSerializable interface.
*
* When used as a parameter of a Jaxon call, the Element must be converted to Jaxon request parameter.
* Therefore, the Element class also implements the Jaxon\Request\Contracts\Parameter interface.
*
* @package jaxon-jquery
* @author Thierry Feuzeu <thierry.feuzeu@gmail.com>
* @copyright 2016 Thierry Feuzeu <thierry.feuzeu@gmail.com>
* @license https://opensource.org/licenses/BSD-3-Clause BSD 3-Clause License
* @link https://github.com/jaxon-php/jaxon-jquery
*/
namespace Jaxon\Response\Plugin\JQuery\Dom;
use JsonSerializable;
use Jaxon\Request\Factory\Contracts\Parameter;
use Jaxon\Response\Plugin\JQuery\Call\Method;
use Jaxon\Response\Plugin\JQuery\Call\AttrSet;
use Jaxon\Response\Plugin\JQuery\Call\AttrGet;
class Element implements JsonSerializable, Parameter
{
/**
* The jQuery selector
*
* @var string
*/
protected $sSelector;
/**
* The actions to be applied on the selected element
*
* @var array
*/
protected $aCalls;
/**
* The constructor.
*
* @param string $sSelector The jQuery selector
* @param string $sContext A context associated to the selector
*/
public function __construct($sSelector = '', $sContext = '')
{
$sSelector = trim($sSelector, " \t");
$sContext = trim($sContext, " \t");
$this->aCalls = [];
$jQueryNs = jaxon()->getOption('core.jquery.no_conflict', false) ? 'jQuery' : '$';
if(!$sSelector)
{
$this->sSelector = "$jQueryNs(this)"; // If an empty selector is given, use javascript "this" instead
}
elseif(($sContext))
{
$this->sSelector = "$jQueryNs('" . $sSelector . "', $jQueryNs('" . $sContext . "'))";
}
else
{
$this->sSelector = "$jQueryNs('" . $sSelector . "')";
}
}
/**
* Add a call to a jQuery method on the selected elements
*
* @return Element
*/
public function __call($sMethod, $aArguments)
{
// Push the action into the array
$this->aCalls[] = new Method($sMethod, $aArguments);
// Return $this so the calls can be chained
return $this;
}
/**
* Get the value of an attribute on the first selected element
*
* @return Element
*/
public function __get($sAttribute)
{
// Push the action into the array
$this->aCalls[] = new AttrGet($sAttribute);
// Return $this so the calls can be chained
return $this;
}
/**
* Set the value of an attribute on the first selected element
*
* @return void
*/
public function __set($sAttribute, $xValue)
{
// Push the action into the array
$this->aCalls[] = new AttrSet($sAttribute, $xValue);
// No other call is allowed after a set
// return $this;
}
/**
* Generate the jQuery call.
*
* @return string
*/
public function getScript()
{
if(count($this->aCalls) == 0)
{
return $this->sSelector;
}
return $this->sSelector . '.' . implode('.', $this->aCalls);
}
/**
* Magic function to generate the jQuery call.
*
* @return string
*/
public function __toString()
{
return $this->getScript();
}
/**
* Generate the jQuery call, when converting the response into json.
*
* This is a method of the JsonSerializable interface.
*
* @return string
*/
public function jsonSerialize()
{
return $this->getScript();
}
}
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