ExtdirectPageCommands.php

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<?php
namespace TYPO3\CMS\Backend\View\PageLayout\ExtDirect;

use TYPO3\CMS\Core\Utility\GeneralUtility;
use TYPO3\CMS\Core\Utility\MathUtility;

class ExtdirectPageCommands {

    public function moveContentElement($sourceElement, $destinationColumn, $destinationElement) {
        $moveElementUid = 0;
        $afterElementUid = -1;
        $targetColumn = 0;
        $targetPage = 0;
        list($_, $table, $uid) = GeneralUtility::trimExplode('-', $sourceElement);
        if ($table === 'tt_content' && MathUtility::canBeInterpretedAsInteger($uid)) {
            $moveElementUid = (int)$uid;
        }
        list($_, $table, $uid) = GeneralUtility::trimExplode('-', $destinationElement);
        if ($table === 'tt_content' && MathUtility::canBeInterpretedAsInteger($uid)) {
            $afterElementUid = (int)$uid;
        } else {
            // it's dropped in an empty column
            $afterElementUid = -1;
        }
        list($prefix, $column, $prefix2, $page, $_) = GeneralUtility::trimExplode('-', $destinationColumn);
        if ($prefix === 'colpos' && MathUtility::canBeInterpretedAsInteger($column) &&
                $prefix2 === 'page' && MathUtility::canBeInterpretedAsInteger($page)
        ) {
            $targetColumn = (int)$column;
            $targetPage = (int)$page;
        }
        // move to empty column
        if ($afterElementUid === -1) {
            $action['cmd']['tt_content'][$moveElementUid]['move'] = $targetPage;
        } else {
            $action['cmd']['tt_content'][$moveElementUid]['move'] = -$afterElementUid;
        }

        $action['data']['tt_content'][$moveElementUid]['colPos'] = $targetColumn;

        GeneralUtility::devLog(
            'Dragdrop',
            'core',
            -1,
            array (
                'action' => $action,
                'sourceElement' => $sourceElement,
                'destinationColumn' => $destinationColumn,
                'destinationElement' => $destinationElement,
            )
        );
        $tce = GeneralUtility::makeInstance('TYPO3\\CMS\\Core\\DataHandling\\DataHandler');
        $tce->stripslashes_values = 0;
        $tce->start($action['data'], $action['cmd']);
        $tce->process_datamap();
        $tce->process_cmdmap();

        return array('success' => TRUE);
    }
}