[BUGFIX] Make compatibility to 8LTS on locallang paths

Classes/Service/BackendService.php

@@ -34,6 +34,7 @@ use TYPO3\CMS\Core\Database\Query\Restriction\DeletedRestriction;
 use TYPO3\CMS\Core\Imaging\Icon;
 use TYPO3\CMS\Core\Imaging\IconFactory;
 use TYPO3\CMS\Core\Utility\GeneralUtility;
+use TYPO3\CMS\Core\Utility\VersionNumberUtility;
 use TYPO3\CMS\Extbase\Mvc\Request;
 use TYPO3\CMS\Extbase\Utility\LocalizationUtility;
 
@@ -89,12 +90,18 @@ class BackendService {
 		/** @var IconFactory $iconFactory */
 		$iconFactory = GeneralUtility::makeInstance(IconFactory::class);
 
+		if (version_compare(VersionNumberUtility::getCurrentTypo3Version(), '9.0.0', '<')) {
+			$locallangPath = 'LLL:EXT:lang/Resources/Private/Language/locallang_core.xlf:';
+		} else {
+			$locallangPath = 'LLL:EXT:core/Resources/Private/Language/locallang_core.xlf:';
+		}
+
 		// Refresh
 		$refreshButton = $buttonBar->makeLinkButton()
 			->setHref(GeneralUtility::getIndpEnv('REQUEST_URI'))
 			->setTitle(
 				LocalizationUtility::translate(
-					'LLL:EXT:core/Resources/Private/Language/locallang_core.xlf:labels.reload', ''
+					$locallangPath . 'labels.reload', ''
 				)
 			)
 			->setIcon($iconFactory->getIcon('actions-refresh', Icon::SIZE_SMALL));

Resources/Private/Backend/Layouts/Default.html

@@ -9,8 +9,14 @@
 				</div>
 				<div class="module-docheader-bar-column-right">
 					<span class="typo3-docheader-pagePath">
-						<f:translate key="LLL:EXT:core/Resources/Private/Language/locallang_core.xlf:labels.path" />:
-						<f:format.raw>{docHeader.metaInformation.path}</f:format.raw>
+						<f:if condition="{typo3Version} < 9000000">
+							<f:then>
+								<f:translate key="LLL:EXT:lang/Resources/Private/Language/locallang_core.xlf:labels.path" />: <f:format.raw>{docHeader.metaInformation.path}</f:format.raw>
+							</f:then>
+							<f:else>
+								<f:translate key="LLL:EXT:core/Resources/Private/Language/locallang_core.xlf:labels.path" />: <f:format.raw>{docHeader.metaInformation.path}</f:format.raw>
+							</f:else>
+						</f:if>
 					</span>
 					<f:format.raw>{docHeader.metaInformation.recordInformation}</f:format.raw>
 				</div>