[FEATURE] use container label in TCA select field

Fixes: #667

Author: achimfritz

Classes/Tca/ItemProcFunc.php

@@ -85,7 +85,7 @@ public function txContainerParent(array &$parameters): void
                 $container = $this->containerFactory->buildContainer((int)$row['tx_container_parent']);
                 $cType = $container->getCType();
                 $items[] = [
-                    $cType,
+                    $this->tcaRegistry->getContainerLabel($cType),
                     $row['tx_container_parent'],
                 ];
             } catch (Exception $e) {

Classes/Tca/Registry.php

@@ -206,6 +206,11 @@ public function getGridLayoutPaths(string $cType): array
         return $GLOBALS['TCA']['tt_content']['containerConfiguration'][$cType]['gridLayoutPaths'] ?? [];
     }
 
+    public function getContainerLabel(string $cType): string
+    {
+        return $GLOBALS['TCA']['tt_content']['containerConfiguration'][$cType]['label'] ?? $cType;
+    }
+
     public function getColPosName(string $cType, int $colPos): ?string
     {
         $grid = $this->getGrid($cType);

Tests/Acceptance/Backend/LayoutCest.php

@@ -284,7 +284,7 @@ public function newElementInHeaderColumnHasExpectedColPosAndParentSelected(Backe
         }
         $I->switchToContentFrame();
         $I->see('header [200]');
-        $I->see('b13-2cols-with-header-container [700]');
+        $I->see('2 Column Container With Header [700]');
     }
 
     /**