RteController.php

<?php

/** Dir: Widget/RteController.php **/

/**
 * Description of RteWidgetController
 *
 * @author Björn Haverland
 */
class Tx_BHave_ViewHelpers_Widget_Controller_RteWidgetController extends \TYPO3\CMS\Fluid\Core\Widget\AbstractWidgetController {

    
    
   /**
	 * Return TSCpid (cached)
	 * Using BackendUtility::getTSCpid()
	 *
	 * @param string $table Tablename
	 * @param string $uid UID value
	 * @param string $pid PID value
	 * @return array Array of two integers; first is the real PID of a record, second is the PID value for TSconfig.
	 * @see BackendUtility::getTSCpid()
	 * @todo Define visibility
	 */
	public function getTSCpid($table, $uid, $pid) {
		$key = $table . ':' . $uid . ':' . $pid;
		if (!isset($this->cache_getTSCpid[$key])) {
			$this->cache_getTSCpid[$key] = \TYPO3\CMS\Backend\Utility\BackendUtility::getTSCpid($table, $uid, $pid);
		}
		return $this->cache_getTSCpid[$key];
	}
    
    public function getRTE($table, $field, $doc, $name, $value, $rep, $rowID){
        
        $formEngine = $this->objectManager->get('TYPO3\\CMS\\Backend\\Form\\FormEngine');
        $formEngine->initDefaultBEMode();
        $repository = $this->objectManager->get($rep);
        
        $getField = "get".ucfirst($field);
        
        $rowObj = $repository->findByUid($rowID);
        if($rowObj === null){
            $row['uid'] = 0;
            $row['content'] = $value;
            $row['pid'] = 0;
        } else {
            $row['uid'] = $rowObj->getUid();
            $row['content'] = $rowObj->$getField();
            $row['pid'] = $rowObj->getPid();
        }
       
        
        
        list($tscPID, $thePidValue) = $this->getTSCpid($table, $row['uid'], $row['pid']);
        $RTEsetup = $GLOBALS['BE_USER']->getTSConfig('RTE', \TYPO3\CMS\Backend\Utility\BackendUtility::getPagesTSconfig($tscPID));
	$RTEtypeVal = \TYPO3\CMS\Backend\Utility\BackendUtility::getTCAtypeValue($table, $row);
	$thisConfig = \TYPO3\CMS\Backend\Utility\BackendUtility::RTEsetup($RTEsetup['properties'], $table, $field, $RTEtypeVal);
        
        

        $PA = array("");

        t3lib_div::loadTCA($table);

        $PA['fieldConf'] = $GLOBALS['TCA'][$table]['columns'][$field];
        $PA['fieldConf']['config']['form_type'] = $PA['fieldConf']['config']['form_type'] ? $PA['fieldConf']['config']['form_type'] : $PA['fieldConf']['config']['type'];
            
        $PA['itemFormElName']= $name;	// Form field name
        $PA['itemFormElName_file']=$formEngine->prependFormFieldNames_file.'[' . $table.'][' . $row['uid'].'][' . $field . ']';	// Form field name, in case of file uploads
        $PA['itemFormElValue']=$row['content'];
        
        $rteController = $this->objectManager->create("Tx_BHave_ViewHelpers_Widget_Controller_RteController", $doc);
        $rte = $rteController->drawRTE($formEngine, $table, $field, $row, $PA, $specConf, $thisConfig, $RTEtypeVal, $RTErelPath, $thePidValue);
        
        return $rte;
    }

    
}

RteViewHelper.php

<?php

/**
 *
 *
 * @author Bjoern Haverland (bjoern@b-have.de)
 * @license http://www.gnu.org/copyleft/gpl.html
 */
class Tx_BHave_ViewHelpers_Widget_RteViewHelper extends \TYPO3\CMS\Fluid\ViewHelpers\Form\AbstractFormFieldViewHelper {
	
    
    
    
    
    /**
	 * Gets instance of template if exists or create a new one.
	 * Saves instance in viewHelperVariableContainer
	 *
	 * @return \TYPO3\CMS\Backend\Template\DocumentTemplate $doc
	 */
	public function getDocInstance() {
		if ($this->viewHelperVariableContainer->exists(
			'TYPO3\\CMS\\Fluid\\ViewHelpers\\Be\\AbstractBackendViewHelper',
			'DocumentTemplate'
		)
		) {
			$doc = $this->viewHelperVariableContainer->get(
				'TYPO3\\CMS\\Fluid\\ViewHelpers\\Be\\AbstractBackendViewHelper',
				'DocumentTemplate'
			);
		} else {
			/** @var $doc \TYPO3\CMS\Backend\Template\DocumentTemplate */
			$doc = $this->createDocInstance();
			$doc->backPath = $GLOBALS['BACK_PATH'];
			$this->viewHelperVariableContainer->add(
				'TYPO3\\CMS\\Fluid\\ViewHelpers\\Be\\AbstractBackendViewHelper',
				'DocumentTemplate',
				$doc
			);
		}

		return $doc;
	}
    

    /**
     * 
     * @var 
     */
    protected $controller;
    
    
    /**
     * add RTE
     * @param string $table
     * @param string $col
     * @param int $rowID
     * @param string $rep
     * @return string
     */
     public function render($table, $col, $rowID, $rep) {
        $name = $this->getName();
        $this->registerFieldNameForFormTokenGeneration($name);   
        $doc = $this->getDocInstance();
        $this->controller = $this->objectManager->create("Tx_BHave_ViewHelpers_Widget_Controller_RteWidgetController");
        $value = htmlspecialchars($this->getValue());
        return $this->controller->getRTE($table, $col, $doc, $name, $value, $rep, $rowID);
     }
}

RteWidgetController.php

<?php

/** Dir: Widget/RteWidgetController.php **/

/**
 * Description of RteWidgetController
 *
 * @author Björn Haverland
 */
class Tx_BHave_ViewHelpers_Widget_Controller_RteWidgetController extends \TYPO3\CMS\Fluid\Core\Widget\AbstractWidgetController {

    
    
   /**
	 * Return TSCpid (cached)
	 * Using BackendUtility::getTSCpid()
	 *
	 * @param string $table Tablename
	 * @param string $uid UID value
	 * @param string $pid PID value
	 * @return array Array of two integers; first is the real PID of a record, second is the PID value for TSconfig.
	 * @see BackendUtility::getTSCpid()
	 * @todo Define visibility
	 */
	public function getTSCpid($table, $uid, $pid) {
		$key = $table . ':' . $uid . ':' . $pid;
		if (!isset($this->cache_getTSCpid[$key])) {
			$this->cache_getTSCpid[$key] = \TYPO3\CMS\Backend\Utility\BackendUtility::getTSCpid($table, $uid, $pid);
		}
		return $this->cache_getTSCpid[$key];
	}
    
    public function getRTE($table, $field, $doc, $name, $value, $rep, $rowID){
        
        $formEngine = $this->objectManager->get('TYPO3\\CMS\\Backend\\Form\\FormEngine');
        $formEngine->initDefaultBEMode();
        $repository = $this->objectManager->get($rep);
        
        $getField = "get".ucfirst($field);
        
        $rowObj = $repository->findByUid($rowID);
        if($rowObj === null){
            $row['uid'] = 0;
            $row['content'] = $value;
            $row['pid'] = 0;
        } else {
            $row['uid'] = $rowObj->getUid();
            $row['content'] = $rowObj->$getField();
            $row['pid'] = $rowObj->getPid();
        }
       
        
        
        list($tscPID, $thePidValue) = $this->getTSCpid($table, $row['uid'], $row['pid']);
        $RTEsetup = $GLOBALS['BE_USER']->getTSConfig('RTE', \TYPO3\CMS\Backend\Utility\BackendUtility::getPagesTSconfig($tscPID));
	$RTEtypeVal = \TYPO3\CMS\Backend\Utility\BackendUtility::getTCAtypeValue($table, $row);
	$thisConfig = \TYPO3\CMS\Backend\Utility\BackendUtility::RTEsetup($RTEsetup['properties'], $table, $field, $RTEtypeVal);
        
        

        $PA = array("");

        t3lib_div::loadTCA($table);

        $PA['fieldConf'] = $GLOBALS['TCA'][$table]['columns'][$field];
        $PA['fieldConf']['config']['form_type'] = $PA['fieldConf']['config']['form_type'] ? $PA['fieldConf']['config']['form_type'] : $PA['fieldConf']['config']['type'];
            
        $PA['itemFormElName']= $name;	// Form field name
        $PA['itemFormElName_file']=$formEngine->prependFormFieldNames_file.'[' . $table.'][' . $row['uid'].'][' . $field . ']';	// Form field name, in case of file uploads
        $PA['itemFormElValue']=$row['content'];
        
        $rteController = $this->objectManager->create("Tx_BHave_ViewHelpers_Widget_Controller_RteController", $doc);
        $rte = $rteController->drawRTE($formEngine, $table, $field, $row, $PA, $specConf, $thisConfig, $RTEtypeVal, $RTErelPath, $thePidValue);
        
        return $rte;
    }

    
}

usage.html

{namespace asc=Tx_BHave_ViewHelpers}
    <asc:Widget.rte property="content" table="tx_bhave_domain_model_boxcontent" col="Content" rowID="{rowID}" rep="Tx_BHave_Domain_Repository_BoxContentRepository" /> 
        <script type="text/javascript">

        var fName = "{rteFieldName}";

                                                 
       //Save function for the Editor. Would be called by pressing the save button.                                             
       function saveData(){
        var html = RTEarea['tx_bhave_web_boxen_'+fName+'__content_'].editor.getHTML();
              $('RTEareatx_bhave_web_boxen_boxContent__content_').setValue(html);
       }

</script>