1 <?php

2 declare(strict_types = 1);

3 

4 namespace ‪TYPO3\CMS\Core\PageTitle;

5 

6 /*

7  * This file is part of the TYPO3 CMS project.

8  *

9  * It is free software; you can redistribute it and/or modify it under

10  * the terms of the GNU General Public License, either version 2

11  * of the License, or any later version.

12  *

13  * For the full copyright and license information, please read the

14  * LICENSE.txt file that was distributed with this source code.

15  *

16  * The TYPO3 project - inspiring people to share!

17  */

18 

19 use ‪TYPO3\CMS\Core\Service\DependencyOrderingService;

20 use ‪TYPO3\CMS\Core\SingletonInterface;

21 use ‪TYPO3\CMS\Core\TypoScript\TypoScriptService;

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

23 

27 class ‪PageTitleProviderManager implements ‪SingletonInterface

28 {

32  private ‪$pageTitleCache = [];

33 

39  public function ‪getTitle(): string

40  {

41  $pageTitle = '';

42 

43  $titleProviders = $this->‪getPageTitleProviderConfiguration();

44  $titleProviders = $this->‪setProviderOrder($titleProviders);

45 

46  $orderedTitleProviders = GeneralUtility::makeInstance(DependencyOrderingService::class)

47  ->orderByDependencies($titleProviders);

48 

49  foreach ($orderedTitleProviders as $provider => $configuration) {

50  if (class_exists($configuration['provider']) && is_subclass_of($configuration['provider'], PageTitleProviderInterface::class)) {

52  $titleProviderObject = GeneralUtility::makeInstance($configuration['provider']);

53  if (($pageTitle = $titleProviderObject->getTitle())

54  || ($pageTitle = $this->pageTitleCache[$configuration['provider']] ?? '') !== ''

55  ) {

56  $this->pageTitleCache[$configuration['provider']] = $pageTitle;

57  break;

58  }

59  }

60  }

61 

62  return $pageTitle;

63  }

64 

69  public function ‪getPageTitleCache(): array

70  {

71  return ‪$this->pageTitleCache;

72  }

73 

78  public function ‪setPageTitleCache(array ‪$pageTitleCache): void

79  {

80  $this->pageTitleCache = ‪$pageTitleCache;

81  }

82 

87  private function ‪getPageTitleProviderConfiguration(): array

88  {

89  $typoscriptService = GeneralUtility::makeInstance(TypoScriptService::class);

90  $config = $typoscriptService->convertTypoScriptArrayToPlainArray(

91  ‪$GLOBALS['TSFE']->config['config'] ?? []

92  );

93 

94  return $config['pageTitleProviders'] ?? [];

95  }

96 

102  protected function ‪setProviderOrder(array $orderInformation): array

103  {

104  foreach ($orderInformation as $provider => &$configuration) {

105  if (isset($configuration['before'])) {

106  if (is_string($configuration['before'])) {

107  $configuration['before'] = GeneralUtility::trimExplode(',', $configuration['before'], true);

108  } elseif (!is_array($configuration['before'])) {

109  throw new \UnexpectedValueException(

110  'The specified "before" order configuration for provider "' . $provider . '" is invalid.',

111  1535803185

112  );

113  }

114  }

115  if (isset($configuration['after'])) {

116  if (is_string($configuration['after'])) {

117  $configuration['after'] = GeneralUtility::trimExplode(',', $configuration['after'], true);

118  } elseif (!is_array($configuration['after'])) {

119  throw new \UnexpectedValueException(

120  'The specified "after" order configuration for provider "' . $provider . '" is invalid.',

121  1535803186

122  );

123  }

124  }

125  }

126  return $orderInformation;

127  }

128 }