VersionView.php

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<?php
namespace TYPO3\CMS\Version\View;

/*
 * This file is part of the TYPO3 CMS project.
 *
 * It is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License, either version 2
 * of the License, or any later version.
 *
 * For the full copyright and license information, please read the
 * LICENSE.txt file that was distributed with this source code.
 *
 * The TYPO3 project - inspiring people to share!
 */

use TYPO3\CMS\Backend\Utility\BackendUtility;
use TYPO3\CMS\Core\Imaging\Icon;
use TYPO3\CMS\Core\Imaging\IconFactory;
use TYPO3\CMS\Core\Utility\GeneralUtility;

class VersionView
{
    public function getVersionSelector($id, $noAction = false)
    {
        if ($id <= 0) {
            return '';
        }
        if ($GLOBALS['BE_USER']->workspace == 0) {
            // Get Current page record:
            $curPage = BackendUtility::getRecord('pages', $id);
            // If the selected page is not online, find the right ID
            $onlineId = $curPage['pid'] == -1 ? $curPage['t3ver_oid'] : $id;
            // Select all versions of online version:
            $versions = BackendUtility::selectVersionsOfRecord('pages', $onlineId, 'uid,pid,t3ver_label,t3ver_oid,t3ver_wsid,t3ver_id', null);
            // If more than one was found...:
            if (count($versions) > 1) {
                // Create selector box entries:
                $opt = [];
                foreach ($versions as $vRow) {
                    if ($vRow['uid'] == $onlineId) {
                        // Live version
                        $label = '[' . $GLOBALS['LANG']->sL('LLL:EXT:version/Resources/Private/Language/locallang.xlf:versionSelect.live', true) . ']';
                    } else {
                        $label = $vRow['t3ver_label'] . ' (' . $GLOBALS['LANG']->sL('LLL:EXT:version/Resources/Private/Language/locallang.xlf:versionId', true) . ' ' . $vRow['t3ver_id'] . ($vRow['t3ver_wsid'] != 0 ? ' ' . $GLOBALS['LANG']->sL('LLL:EXT:version/Resources/Private/Language/locallang.xlf:workspaceId', true) . ' ' . $vRow['t3ver_wsid'] : '') . ')';
                    }
                    $opt[] = '<option value="' . htmlspecialchars(GeneralUtility::linkThisScript(['id' => $vRow['uid']])) . '"' . ($id == $vRow['uid'] ? ' selected="selected"' : '') . '>' . htmlspecialchars($label) . '</option>';
                }
                $iconFactory = GeneralUtility::makeInstance(IconFactory::class);
                // Add management link:
                $management = '
                    <a class="btn btn-default" href="' . htmlspecialchars(\TYPO3\CMS\Backend\Utility\BackendUtility::getModuleUrl('web_txversionM1', ['table' => 'pages', 'uid' => $onlineId])) . '">
                        ' . $iconFactory->getIcon('actions-version-page-open', Icon::SIZE_SMALL)->render() . '
                        ' . $GLOBALS['LANG']->sL('LLL:EXT:lang/locallang_core.xlf:ver.mgm', true) . '
                    </a>';
                // Create onchange handler:
                $onChange = 'window.location.href=this.options[this.selectedIndex].value;';
                // Controls:
                if ($id == $onlineId) {
                    $controls = '<strong class="text-success">' . $GLOBALS['LANG']->sL('LLL:EXT:lang/locallang_core.xlf:ver.online', true) . '</strong>';
                } elseif (!$noAction) {
                    $href = BackendUtility::getLinkToDataHandlerAction(
                        '&cmd[pages][' . $onlineId . '][version][swapWith]=' . $id . '&cmd[pages][' . $onlineId . '][version][action]=swap',
                        GeneralUtility::linkThisScript(['id' => $onlineId])
                    );
                    $controls = '
                        <a href="' . htmlspecialchars($href) . '" class="btn btn-default" title="' . $GLOBALS['LANG']->sL('LLL:EXT:lang/locallang_core.xlf:ver.swapPage', true) . '">
                            ' . $iconFactory->getIcon('actions-version-swap-version', Icon::SIZE_SMALL)->render() . '
                            ' . $GLOBALS['LANG']->sL('LLL:EXT:lang/locallang_core.xlf:ver.swap', true) . '
                        </a>';
                }
                // Write out HTML code:
                return '
                    <!--
                        Version selector:
                    -->
                    <div id="typo3-version-selector" class="form-inline form-inline-spaced">
                        <div class="form-group">
                            <label for="version-selector">' . $GLOBALS['LANG']->sL('LLL:EXT:version/Resources/Private/Language/locallang.xlf:versionSelect.label', true) . '</label>
                            <select id="version-selector" class="form-control" onchange="' . htmlspecialchars($onChange) . '">
                                ' . implode('', $opt) . '
                            </select>
                        </div>
                        <div class="form-group">
                            ' . $controls . '
                        </div>
                        <div class="form-group">
                            ' . $management . '
                        </div>
                    </div>
                ';
            }
        }
    }
}