typo3/sysext/extensionmanager/Classes/ViewHelpers/ProcessAvailableActionsViewHelper.php

   1 <?php
   2 namespace TYPO3\CMS\Extensionmanager\ViewHelpers;
   3
   4 /**
   5  * This file is part of the TYPO3 CMS project.
   6  *
   7  * It is free software; you can redistribute it and/or modify it under
   8  * the terms of the GNU General Public License, either version 2
   9  * of the License, or any later version.
  10  *
  11  * For the full copyright and license information, please read the
  12  * LICENSE.txt file that was distributed with this source code.
  13  *
  14  * The TYPO3 project - inspiring people to share!
  15  */
  16
  17 /**
  18  * View helper to let 3rd-party extensions process the list of available
  19  * actions for a given extension.
  20  *
  21  * @author Xavier Perseguers <xavier@typo3.org>
  22  */
  23 class ProcessAvailableActionsViewHelper extends \TYPO3\CMS\Fluid\ViewHelpers\Link\ActionViewHelper {
  24
  25         const SIGNAL_ProcessActions = 'processActions';
  26
  27         /**
  28          * @var \TYPO3\CMS\Extbase\SignalSlot\Dispatcher
  29          * @inject
  30          */
  31         protected $signalSlotDispatcher;
  32
  33         /**
  34          * Processes the list of actions.
  35          *
  36          * @param string $extension
  37          * @return string the rendered list of actions
  38          */
  39         public function render($extension) {
  40                 $html = $this->renderChildren();
  41                 $actions = preg_split('#\\n\\s*#s', trim($html));
  42
  43                 $actions = $this->emitProcessActionsSignal($extension, $actions);
  44
  45                 return implode(' ', $actions);
  46         }
  47
  48         /**
  49          * Emits a signal after the list of actions is processed
  50          *
  51          * @param string $extension
  52          * @param array $actions
  53          * @return array Modified action array
  54          */
  55         protected function emitProcessActionsSignal($extension, array $actions) {
  56                 $signalArguments = $this->signalSlotDispatcher->dispatch(
  57                         __CLASS__,
  58                         static::SIGNAL_ProcessActions,
  59                         array(
  60                                 $extension,
  61                                 $actions,
  62                         )
  63                 );
  64                 return $signalArguments[1];
  65         }
  66
  67 }