ValueSlider.php

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<?php
namespace TYPO3\CMS\Backend\Form\Element;

use TYPO3\CMS\Core\Utility\GeneralUtility;

class ValueSlider {

    public function renderWizard(&$params, &$pObj) {
        $pObj->loadJavascriptLib('sysext/backend/Resources/Public/JavaScript/ValueSlider.js');
        $field = $params['field'];
        $value = $params['row'][$field];
        // If Slider is used in a flexform
        if (!empty($params['flexFormPath'])) {
            $flexFormTools = GeneralUtility::makeInstance('TYPO3\\CMS\\Core\\Configuration\\FlexForm\\FlexFormTools');
            $flexFormValue = $flexFormTools->getArrayValueByPath($params['flexFormPath'], GeneralUtility::xml2array($value));
            if ($flexFormValue !== NULL) {
                $value = $flexFormValue;
            }
        }
        $itemName = $params['itemName'];
        // Set default values (which correspond to those of the JS component)
        $min = 0;
        $max = 10000;
        // Use the range property, if defined, to set min and max values
        if (isset($params['fieldConfig']['range'])) {
            $min = isset($params['fieldConfig']['range']['lower']) ? (int)$params['fieldConfig']['range']['lower'] : 0;
            $max = isset($params['fieldConfig']['range']['upper']) ? (int)$params['fieldConfig']['range']['upper'] : 10000;
        }
        $elementType = $params['fieldConfig']['type'];
        $step = $params['wConf']['step'] ?: 1;
        $width = (int)$params['wConf']['width'] ?: 400;
        $type = 'null';
        if (isset($params['fieldConfig']['eval'])) {
            $eval = GeneralUtility::trimExplode(',', $params['fieldConfig']['eval'], TRUE);
            if (in_array('time', $eval)) {
                $type = 'time';
                $value = (int)$value;
            } elseif (in_array('int', $eval)) {
                $type = 'int';
                $value = (int)$value;
            } elseif (in_array('double2', $eval)) {
                $type = 'double';
                $value = (double) $value;
            }
        }
        if (isset($params['fieldConfig']['items'])) {
            $type = 'array';
            $value = (int)$value;
        }
        $callback = $params['fieldChangeFunc']['TBE_EDITOR_fieldChanged'];
        $getField = $params['fieldChangeFunc']['typo3form.fieldGet'];
        $id = 'slider-' . $params['md5ID'];
        $contents = '<div id="' . $id . '"></div>';
        $js = '
        new TYPO3.Components.TcaValueSlider({
            minValue: ' . $min . ',
            maxValue: ' . $max . ',
            value: ' . $value . ',
            increment: ' . $step . ',
            renderTo: "' . $id . '",
            itemName: "' . $itemName . '",
            changeCallback: "' . $callback . '",
            getField: "' . $getField . '",
            width: "' . $width . '",
            type: "' . $type . '",
            elementType: "' . $elementType . '"
        });
        ';
        $pageRenderer = $GLOBALS['SOBE']->doc->getPageRenderer();
        $pageRenderer->addExtOnReadyCode($js);
        return $contents;
    }

}