[BUGFIX] Render correct preview link in page module

If a page is translated and a translation is selected in the columns module of the
page module, the view webpage button must show the translation instead of
the default language.

Resolves: #89184
Releases: master, 9.5
Change-Id: Ib1c21a99a706e298300e355e6675839275361e28
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/61713


Reviewed-by: Daniel Goerz <daniel.goerz@posteo.de>
Reviewed-by: Frank Nägler <frank.naegler@typo3.org>
Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Daniel Goerz <daniel.goerz@posteo.de>
Tested-by: Frank Nägler <frank.naegler@typo3.org>

typo3/sysext/backend/Classes/Controller/PageLayoutController.php

@@ -706,7 +706,7 @@ class PageLayoutController
 
             // Render the primary module content:
             if ($this->MOD_SETTINGS['function'] == 1 || $this->MOD_SETTINGS['function'] == 2) {
-                $content .= '<form action="' . htmlspecialchars((string)$uriBuilder->buildUriFromRoute($this->moduleName, ['id' => $this->id, 'imagemode' =>  $this->imagemode])) . '" id="PageLayoutController" method="post">';
+                $content .= '<form action="' . htmlspecialchars((string)$uriBuilder->buildUriFromRoute($this->moduleName, ['id' => $this->id, 'imagemode' => $this->imagemode])) . '" id="PageLayoutController" method="post">';
                 // Page title
                 $content .= '<h1 class="t3js-title-inlineedit">' . htmlspecialchars($this->getLocalizedPageTitle()) . '</h1>';
                 // All other listings
@@ -902,8 +902,17 @@ class PageLayoutController
         $lang = $this->getLanguageService();
         // View page
         if (!VersionState::cast($this->pageinfo['t3ver_state'])->equals(VersionState::DELETE_PLACEHOLDER)) {
+            $languageParameter = $this->current_sys_language ? ('&L=' . $this->current_sys_language) : '';
+            $onClick = BackendUtility::viewOnClick(
+                $this->pageinfo['uid'],
+                '',
+                BackendUtility::BEgetRootLine($this->pageinfo['uid']),
+                '',
+                '',
+                $languageParameter
+            );
             $viewButton = $this->buttonBar->makeLinkButton()
-                ->setOnClick(BackendUtility::viewOnClick($this->pageinfo['uid'], '', BackendUtility::BEgetRootLine($this->pageinfo['uid'])))
+                ->setOnClick($onClick)
                 ->setTitle($lang->sL('LLL:EXT:core/Resources/Private/Language/locallang_core.xlf:labels.showPage'))
                 ->setIcon($this->iconFactory->getIcon('actions-view-page', Icon::SIZE_SMALL))
                 ->setHref('#');