Backup

src/Ui/Widget/Container.php

@@ -522,6 +522,26 @@ class Container extends Component
         ];
     }
 
+    /**
+     * Get current scroll position.
+     */
+    public function getScrollPosition(): array
+    {
+        return [
+            'x' => $this->scrollX,
+            'y' => $this->scrollY,
+        ];
+    }
+
+    /**
+     * Restore scroll position (used e.g. after re-rendering children).
+     */
+    public function setScrollPosition(float $x, float $y): void
+    {
+        $this->scrollX = max(0, $x);
+        $this->scrollY = max(0, $y);
+    }
+
     private function renderScrollbars(&$renderer, array $overflow): void
     {
         $scrollbarColor = [120, 120, 120, 230];

src/Ui/Widget/Table.php

@@ -202,6 +202,10 @@ class Table extends Container
      */
     public function selectRow(int $rowIndex): void
     {
+        // Remember current scroll position of the body so that selection
+        // does not reset scrolling back to the top.
+        $scrollPosition = $this->bodyContainer->getScrollPosition();
+
         $this->selectedRowIndex = $rowIndex;
 
         // Trigger callback
@@ -211,6 +215,9 @@ class Table extends Container
 
         // Re-render rows to update selection
         $this->setData($this->rows);
+
+        // Restore scroll position
+        $this->bodyContainer->setScrollPosition($scrollPosition['x'], $scrollPosition['y']);
     }
 
     /**