[BUGFIX] Display inline elements in correct language (fixes #19)

Classes/Backend/FormDataProvider/ContainerChildrenLanguageCorrectionFormDataProvider.php

@@ -0,0 +1,64 @@
+<?php
+
+namespace Team23\T23InlineContainer\Backend\FormDataProvider;
+
+use TYPO3\CMS\Backend\Form\FormDataProviderInterface;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+
+class ContainerChildrenLanguageCorrectionFormDataProvider implements FormDataProviderInterface
+{
+    public function addData(array $result): array
+    {
+        if (empty($result["processedTca"]["columns"]["tx_t23inlinecontainer_elements"])) {
+            return $result;
+        }
+
+        $registeredCTypes = GeneralUtility::makeInstance(\B13\Container\Tca\Registry::class)->getRegisteredCTypes();
+        $cType = $result['databaseRow']['CType'][0] ?? '';
+        if (!in_array($cType, $registeredCTypes, true)) {
+            return $result;
+        }
+
+        $parentLanguageUid = (int)$result['databaseRow']['sys_language_uid'] ?? 0;
+
+        $children =& $result['processedTca']['columns']['tx_t23inlinecontainer_elements']['children'];
+        $translationsExistFor = [];
+
+        // store ids of original language elements that have a translation
+        foreach ($children as &$child) {
+            $lang = (int)$child['databaseRow']['sys_language_uid'] ?? 0;
+            $origUid = (int)($child['databaseRow']['l18n_parent'][0] ?? 0);
+            if ($parentLanguageUid === 0 && $lang > 0) {
+                continue;
+            }
+            if ($parentLanguageUid > 0 && $lang === $parentLanguageUid && $origUid > 0) {
+                $translationsExistFor[] = $origUid;
+            }
+            // if child language differs from parents language, grey out child in backend
+            $child['isInlineDefaultLanguageRecordInLocalizedParentContext'] = ($lang !== $parentLanguageUid);
+        }
+
+        $filteredChildren = [];
+
+        foreach ($children as $i => &$child) {
+            $lang = (int)$child['databaseRow']['sys_language_uid'] ?? 0;
+            //$child['defaultLanguageDiffRow'] = null;
+
+            // hide translated elements from default language view
+            if ($parentLanguageUid === 0 && $lang > 0) {
+                continue;
+            }
+
+            // hide original language children when they have a translated element
+            $childUid = (int)($child['databaseRow']['uid'] ?? 0);
+            if (in_array($childUid, $translationsExistFor, true)) {
+                continue;
+            }
+
+            $filteredChildren[] = $child;
+        }
+        $children = array_values($filteredChildren);
+
+        return $result;
+    }
+}

Classes/Hooks/DataHandler.php

@@ -41,6 +41,46 @@ public function processDatamap_beforeStart(\TYPO3\CMS\Core\DataHandling\DataHand
         }
     }
 
+    /**
+     * @param array $incomingFieldArray
+     * @param string $table
+     * @param int|string $id
+     * @param \TYPO3\CMS\Core\DataHandling\DataHandler $dataHandler
+     * @return void
+     */
+    public function processDatamap_preProcessFieldArray(
+        array &$incomingFieldArray,
+        string $table,
+        $id,
+        \TYPO3\CMS\Core\DataHandling\DataHandler $dataHandler
+    ): void {
+        // Only handle content elements
+        if ($table !== 'tt_content') {
+            return;
+        }
+
+        // Only relevant if this is a translated record
+        $languageUid = (int)($incomingFieldArray['sys_language_uid'] ?? 0);
+        if ($languageUid <= 0) {
+            return;
+        }
+
+        // If this record has a container parent, check if it's a localized one
+        $txContainerParent = (int)($incomingFieldArray['tx_container_parent'] ?? 0);
+        if ($txContainerParent > 0) {
+            // Fetch the parent record
+            $parentRecord = \TYPO3\CMS\Backend\Utility\BackendUtility::getRecord('tt_content', $txContainerParent);
+
+            // If parent exists and is a localized record, resolve its default language UID
+            if (!empty($parentRecord['l18n_parent'])) {
+                $defaultParentUid = (int)$parentRecord['l18n_parent'];
+
+                // Rewrite to the default-language container
+                $incomingFieldArray['tx_container_parent'] = $defaultParentUid;
+            }
+        }
+    }
+
     public function processCmdmap_preProcess($command, $table, $id, $value, $pObj, $pasteUpdate)
     {
         if (in_array($command, ['copy', 'localize']) && $table === 'tt_content') {

composer.json

@@ -6,7 +6,7 @@
     "license": "GPL-2.0-or-later",
     "require": {
         "typo3/cms-core": "^11.5 || ^12.4",
-        "b13/container": "^2.3.1"
+        "b13/container": "^2.3 || ^3.1"
     },
     "suggest": {
         "georgringer/news": "Most usefull application of this extension."

ext_emconf.php

@@ -16,11 +16,11 @@
     'author_company' => 'TEAM23',
     'state' => 'beta',
     'clearCacheOnLoad' => true,
-    'version' => '0.0.13',
+    'version' => '0.0.14',
     'constraints' => [
         'depends' => [
             'typo3' => '11.0.0-12.9.99',
-            'container' => '2.3.1-2.9.99',
+            'container' => '2.3.1-3.9.99',
         ],
         'conflicts' => [
         ],

ext_localconf.php

@@ -9,7 +9,7 @@
  * LICENSE.txt file that was distributed with this source code.
  */
 
-$GLOBALS ['TYPO3_CONF_VARS']['SC_OPTIONS']['t3lib/class.t3lib_tcemain.php']['processCmdmapClass']['tx-t23inlinecontainer'] = 'Team23\T23InlineContainer\Hooks\DataHandler';
+$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['t3lib/class.t3lib_tcemain.php']['processCmdmapClass']['tx-t23inlinecontainer'] = 'Team23\T23InlineContainer\Hooks\DataHandler';
 $GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['t3lib/class.t3lib_tcemain.php']['processDatamapClass']['tx-t23inlinecontainer'] = 'Team23\T23InlineContainer\Hooks\DataHandler';
 
 $GLOBALS['TYPO3_CONF_VARS']['SYS']['formEngine']['formDataGroup']['tcaDatabaseRecord'][\Team23\T23InlineContainer\Backend\FormDataProvider\ContainerChildrenFormDataProvider::class] = [
@@ -19,4 +19,9 @@
     'before' => [
         \TYPO3\CMS\Backend\Form\FormDataProvider\InlineOverrideChildTca::class,
     ]
-];
+];
+$GLOBALS['TYPO3_CONF_VARS']['SYS']['formEngine']['formDataGroup']['tcaDatabaseRecord'][\Team23\T23InlineContainer\Backend\FormDataProvider\ContainerChildrenLanguageCorrectionFormDataProvider::class] = [
+    'depends' => [
+        \TYPO3\CMS\Backend\Form\FormDataProvider\TcaInlineData::class,
+    ],
+];