oxwidgetcontrol.php

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<?php

class oxWidgetControl extends oxShopControl
{


    protected $_blHandlerSet = true;

    protected $_blMainTasksExecuted = true;

    public function __construct()
    {
        parent::__construct();
    }

    public function start($sClass = null, $sFunction = null, $aParams = null, $aViewsChain = null)
    {
        //$aParams = ( isset($aParams) ) ? $aParams : oxRegistry::getConfig()->getRequestParameter( 'oxwparams' );

        if (!isset($aViewsChain) && oxRegistry::getConfig()->getRequestParameter('oxwparent')) {
            $aViewsChain = explode("|", oxRegistry::getConfig()->getRequestParameter('oxwparent'));
        }

        parent::start($sClass, $sFunction, $aParams, $aViewsChain);

        //perform tasks that should be done at the end of widget processing
        $this->_runLast();
    }

    protected function _runOnce()
    {

        return;
    }

    protected function _runLast()
    {
        $oConfig = $this->getConfig();

        if ($oConfig->hasActiveViewsChain()) {
            // Removing current active view.
            $oConfig->dropLastActiveView();

            // Setting back last active view.
            $oSmarty = oxRegistry::get("oxUtilsView")->getSmarty();
            $oSmarty->assign('oView', $oConfig->getActiveView());
        }
    }

    protected function _initializeViewObject($sClass, $sFunction, $aParams = null, $aViewsChain = null)
    {
        $oConfig = $this->getConfig();
        $aActiveViewsNames = $oConfig->getActiveViewsNames();
        $aActiveViewsNames = array_map("strtolower", $aActiveViewsNames);

        // if exists views chain, initializing these view at first
        if (is_array($aViewsChain) && !empty($aViewsChain)) {

            foreach ($aViewsChain as $sParentClassName) {
                if ($sParentClassName != $sClass && !in_array(strtolower($sParentClassName), $aActiveViewsNames)) {
                    // creating parent view object
                    if (strtolower($sParentClassName) == 'oxubase') {
                        $oViewObject = oxNew('oxubase');
                        $oConfig->setActiveView($oViewObject);
                    } else {
                        $oViewObject = oxNew($sParentClassName);
                        $oViewObject->setClassName($sParentClassName);
                        $oConfig->setActiveView($oViewObject);
                    }
                }
            }
        }

        $oWidgetViewObject = parent::_initializeViewObject($sClass, $sFunction, $aParams);
        if (!is_a($oWidgetViewObject, 'oxWidget')) {
            $exception = oxNew('oxObjectException', get_class($oWidgetViewObject) . ' is not an instance of oxWidget');
            throw $exception;
        }

        // Set template name for current widget.
        if (!empty($aParams['oxwtemplate'])) {
            $oWidgetViewObject->setTemplateName($aParams['oxwtemplate']);
        }

        return $oWidgetViewObject;
    }
}