DownloadExtensionViewHelper.php

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<?php
namespace TYPO3\CMS\Extensionmanager\ViewHelpers;

/*
 * 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\Extbase\Utility\LocalizationUtility;

class DownloadExtensionViewHelper extends \TYPO3\CMS\Fluid\ViewHelpers\FormViewHelper
{
    protected $tagName = 'form';

    protected $configurationUtility;

    public function injectConfigurationUtility(\TYPO3\CMS\Extensionmanager\Utility\ConfigurationUtility $configurationUtility)
    {
        $this->configurationUtility = $configurationUtility;
    }

    public function render(\TYPO3\CMS\Extensionmanager\Domain\Model\Extension $extension)
    {
        $installPaths = \TYPO3\CMS\Extensionmanager\Domain\Model\Extension::returnAllowedInstallPaths();
        if (empty($installPaths)) {
            return '';
        }
        $pathSelector = '<ul class="is-hidden">';
        foreach ($installPaths as $installPathType => $installPath) {
            $pathSelector .= '<li>
                                <input type="radio" id="' . htmlspecialchars($extension->getExtensionKey()) . '-downloadPath-' . htmlspecialchars($installPathType) . '" name="' . htmlspecialchars($this->getFieldNamePrefix('downloadPath')) . '[downloadPath]" class="downloadPath" value="' . htmlspecialchars($installPathType) . '"' . ($installPathType == 'Local' ? ' checked="checked"' : '') . '/>
                                <label for="' . htmlspecialchars($extension->getExtensionKey()) . '-downloadPath-' . htmlspecialchars($installPathType) . '">' . htmlspecialchars($installPathType) . '</label>
                        </li>';
        }
        $pathSelector .= '</ul>';
        $uriBuilder = $this->controllerContext->getUriBuilder();
        $action = 'checkDependencies';
        $uriBuilder->reset();
        $uriBuilder->setFormat('json');
        $uri = $uriBuilder->uriFor($action, array(
            'extension' => (int)$extension->getUid()
        ), 'Download');
        $this->tag->addAttribute('data-href', $uri);

        $automaticInstallation = $this->configurationUtility->getCurrentConfiguration('extensionmanager')['automaticInstallation']['value'];
        $labelKeySuffix = $automaticInstallation ? '' : '.downloadOnly';
        $label = '
                        <div class="btn-group">
                                <button
                                        title="' . LocalizationUtility::translate('extensionList.downloadViewHelper.submit' . $labelKeySuffix, 'extensionmanager') . '"
                                        type="submit"
                                        class="btn btn-default"
                                        value="' . LocalizationUtility::translate('extensionList.downloadViewHelper.submit' . $labelKeySuffix, 'extensionmanager') . '"
                                >
                                        <span class="t3-icon fa fa-cloud-download"></span>
                                </button>
                        </div>';

        $this->tag->setContent($label . $pathSelector);
        $this->tag->addAttribute('class', 'download');
        return '<div id="' . htmlspecialchars($extension->getExtensionKey()) . '-downloadFromTer" class="downloadFromTer">' . $this->tag->render() . '</div>';
    }
}