Fix PluginObjectView split/popover navigation modes falling back to drawer

ROADMAP.md

@@ -1050,6 +1050,21 @@ The `FlowDesigner` is a canvas-based flow editor that bridges the gap between th
 
 **Tests:** All 32 ObjectView tests and 29 useNavigationOverlay tests pass.
 
+### ListView Multi-Navigation Mode Support — split/popover/page/new_window (February 2026)
+
+**Root Cause:** While `drawer`/`modal` modes worked in the Console ObjectView, the remaining 4 navigation modes had gaps:
+1. Console's `onNavigate` callback relied on implicit fallthrough for `view` action (page mode) — not explicit.
+2. `PluginObjectView`'s `formLayout` only mapped `drawer`/`modal` modes; `split`/`popover` fell through to the default layout (`drawer`), rendering the wrong overlay type.
+3. `PluginObjectView` lacked `NavigationOverlay` integration for `split` (resizable side-by-side panels) and `popover` (compact dialog preview).
+
+**Fix:**
+- Console `onNavigate` now explicitly checks for `action === 'view'` (page mode) alongside the existing `'new_window'` check.
+- `PluginObjectView` `formLayout` now includes `split` and `popover` branches.
+- `PluginObjectView` imports and renders `NavigationOverlay` from `@object-ui/components` for both `split` mode (with `mainContent` wrapping the grid) and `popover` mode (Dialog fallback when no `popoverTrigger`).
+- Split mode close button properly resets form state via `handleFormCancel`.
+
+**Tests:** Updated split/popover tests to verify `NavigationOverlay` rendering (close panel button for split, dialog role for popover). Added split close-and-return test. All 29 PluginObjectView tests and 37 Console ObjectView tests pass.
+
 ### ListView Grouping Mode Empty Rows (February 2026)
 
 **Root Cause:** When grouping is enabled in list view, `buildGroupTableSchema` in `ObjectGrid.tsx` sets `pagination: false` but inherits `pageSize: 10` from the parent schema. The `DataTableRenderer` filler row logic (`Array.from({ length: Math.max(0, pageSize - paginatedData.length) })`) pads each group table with empty rows up to `pageSize`, creating many blank lines.

apps/console/src/components/ObjectView.tsx

@@ -433,10 +433,14 @@ export function ObjectView({ dataSource, objects, onEdit, onRowClick }: any) {
                 return;
             }
             // page / view mode — navigate to record detail page
-            if (viewId) {
-                navigate(`../../record/${String(recordId)}`, { relative: 'path' });
-            } else {
-                navigate(`record/${String(recordId)}`);
+            // Handles action === 'view' (from useNavigationOverlay page mode) and
+            // default fallthrough for any unrecognised action
+            if (action === 'view' || !action || action === 'page') {
+                if (viewId) {
+                    navigate(`../../record/${String(recordId)}`, { relative: 'path' });
+                } else {
+                    navigate(`record/${String(recordId)}`);
+                }
             }
         },
     });

packages/plugin-view/src/ObjectView.tsx

@@ -49,6 +49,7 @@ import {
   DrawerHeader,
   DrawerTitle,
   DrawerDescription,
+  NavigationOverlay,
   Button,
   Tabs,
   TabsList,
@@ -974,8 +975,57 @@ export const ObjectView: React.FC<ObjectViewProps> = ({
   // Determine which form container to render
   const formLayout = navigationConfig?.mode === 'modal' ? 'modal'
     : navigationConfig?.mode === 'drawer' ? 'drawer'
+    : navigationConfig?.mode === 'split' ? 'split'
+    : navigationConfig?.mode === 'popover' ? 'popover'
     : layout;
 
+  // Build the record detail content for NavigationOverlay (split/popover modes)
+  const renderOverlayDetail = (record: Record<string, unknown>) => (
+    <div className="space-y-3">
+      <ObjectForm schema={buildFormSchema()} dataSource={dataSource} />
+    </div>
+  );
+
+  // Shared handler for NavigationOverlay onOpenChange — close form when overlay is dismissed
+  const handleOverlayOpenChange = useCallback((open: boolean) => {
+    if (!open) handleFormCancel();
+  }, [handleFormCancel]);
+
+  // For split mode, wrap content inside NavigationOverlay with mainContent
+  if (formLayout === 'split') {
+    const objectLabel = (objectSchema?.label as string) || schema.objectName;
+    return (
+      <div className={cn('flex flex-col h-full min-w-0 overflow-hidden', className)}>
+        {(schema.title || schema.description) && (
+          <div className="mb-4 shrink-0">
+            {schema.title && <h2 className="text-2xl font-bold tracking-tight">{schema.title}</h2>}
+            {schema.description && <p className="text-muted-foreground mt-1">{schema.description}</p>}
+          </div>
+        )}
+        <div className="mb-4 shrink-0">{renderToolbar()}</div>
+        <div className="flex-1 min-h-0 min-w-0 overflow-hidden">
+          {isFormOpen && selectedRecord ? (
+            <NavigationOverlay
+              isOpen={isFormOpen}
+              selectedRecord={selectedRecord}
+              mode="split"
+              close={handleFormCancel}
+              setIsOpen={handleOverlayOpenChange}
+              width={navigationConfig?.width}
+              isOverlay={true}
+              title={`${objectLabel} Detail`}
+              mainContent={<div className="h-full overflow-auto">{renderContent()}</div>}
+            >
+              {renderOverlayDetail}
+            </NavigationOverlay>
+          ) : (
+            renderContent()
+          )}
+        </div>
+      </div>
+    );
+  }
+
   return (
     <div className={cn('flex flex-col h-full min-w-0 overflow-hidden', className)}>
       {/* Title and description */}
@@ -1003,6 +1053,21 @@ export const ObjectView: React.FC<ObjectViewProps> = ({
       {/* Form (drawer or modal) */}
       {formLayout === 'drawer' && renderDrawerForm()}
       {formLayout === 'modal' && renderModalForm()}
+      {/* Popover mode — uses NavigationOverlay Dialog fallback (no popoverTrigger) */}
+      {formLayout === 'popover' && isFormOpen && selectedRecord && (
+        <NavigationOverlay
+          isOpen={isFormOpen}
+          selectedRecord={selectedRecord}
+          mode="popover"
+          close={handleFormCancel}
+          setIsOpen={handleOverlayOpenChange}
+          width={navigationConfig?.width}
+          isOverlay={true}
+          title={getFormTitle()}
+        >
+          {renderOverlayDetail}
+        </NavigationOverlay>
+      )}
     </div>
   );
 };

packages/plugin-view/src/__tests__/ObjectView.test.tsx

@@ -300,8 +300,9 @@ describe('ObjectView', () => {
 
       fireEvent.click(screen.getByTestId('grid-row'));
 
-      // Split mode should trigger form display in view mode
+      // Split mode renders NavigationOverlay with split panels including a close button
       expect(screen.getByTestId('object-form')).toBeDefined();
+      expect(screen.getByLabelText('Close panel')).toBeDefined();
     });
 
     it('should open form in view mode when popover navigation mode is clicked', () => {
@@ -315,8 +316,30 @@ describe('ObjectView', () => {
 
       fireEvent.click(screen.getByTestId('grid-row'));
 
-      // Popover mode should trigger form display in view mode
+      // Popover mode renders NavigationOverlay Dialog fallback (no popoverTrigger)
       expect(screen.getByTestId('object-form')).toBeDefined();
+      expect(screen.getByRole('dialog')).toBeDefined();
+    });
+
+    it('should close split panel and return to normal view', () => {
+      const schema: ObjectViewSchema = {
+        type: 'object-view',
+        objectName: 'contacts',
+        navigation: { mode: 'split' },
+      };
+
+      render(<ObjectView schema={schema} dataSource={mockDataSource} />);
+
+      // Open split panel
+      fireEvent.click(screen.getByTestId('grid-row'));
+      expect(screen.getByLabelText('Close panel')).toBeDefined();
+
+      // Close split panel
+      fireEvent.click(screen.getByLabelText('Close panel'));
+
+      // Form should be gone, grid should remain
+      expect(screen.queryByLabelText('Close panel')).toBeNull();
+      expect(screen.getByTestId('object-grid')).toBeDefined();
     });
   });