monitor-unit-tests: Add tests with dynamic orientation changes

Verify monitors disposition when we have rotation changes coming from
MetaOrientationManager, using our mock dbus implementation.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1233>

src/backends/meta-backend-private.h

@@ -112,6 +112,7 @@ void meta_backend_destroy (MetaBackend *backend);
 
 void meta_backend_prepare_shutdown (MetaBackend *backend);
 
+META_EXPORT_TEST
 ClutterBackend * meta_backend_get_clutter_backend (MetaBackend *backend);
 
 ClutterSeat * meta_backend_get_default_seat (MetaBackend *bakcend);
@@ -123,6 +124,7 @@ MetaIdleManager * meta_backend_get_idle_manager (MetaBackend *backend);
 
 META_EXPORT_TEST
 MetaMonitorManager * meta_backend_get_monitor_manager (MetaBackend *backend);
+META_EXPORT_TEST
 MetaOrientationManager * meta_backend_get_orientation_manager (MetaBackend *backend);
 MetaCursorTracker * meta_backend_get_cursor_tracker (MetaBackend *backend);
 MetaCursorRenderer * meta_backend_get_cursor_renderer_for_device (MetaBackend        *backend,

src/backends/meta-monitor-manager-private.h

@@ -305,6 +305,7 @@ MetaLogicalMonitor *meta_monitor_manager_get_logical_monitor_neighbor (MetaMonit
 
 MetaMonitor *       meta_monitor_manager_get_primary_monitor (MetaMonitorManager *manager);
 
+META_EXPORT_TEST
 MetaMonitor *       meta_monitor_manager_get_laptop_panel (MetaMonitorManager *manager);
 
 MetaMonitor *       meta_monitor_manager_get_monitor_from_spec (MetaMonitorManager *manager,

src/tests/meta-backend-test.c

@@ -81,6 +81,100 @@ meta_backend_test_create_monitor_manager (MetaBackend *backend,
                        NULL);
 }
 
+ClutterInputDevice *
+meta_backend_test_add_test_device (MetaBackendTest        *backend_test,
+                                   const char             *name,
+                                   ClutterInputDeviceType  device_type,
+                                   int                     n_buttons)
+{
+  g_autoptr (GList) devices = NULL;
+  MetaBackend *backend = META_BACKEND (backend_test);
+  ClutterBackend *clutter_backend = meta_backend_get_clutter_backend (backend);
+  ClutterSeat *seat = clutter_backend_get_default_seat (clutter_backend);
+  ClutterStage *stage = CLUTTER_STAGE (meta_backend_get_stage (backend));
+  ClutterInputDevice *device;
+  ClutterEvent *event;
+  const char *product_id;
+  bool has_cursor = TRUE;
+
+  switch (device_type)
+    {
+    case CLUTTER_POINTER_DEVICE:
+      product_id = "MetaTestPointer";
+      break;
+    case CLUTTER_KEYBOARD_DEVICE:
+      product_id = "MetaTestKeyboard";
+      has_cursor = FALSE;
+      break;
+    case CLUTTER_EXTENSION_DEVICE:
+      product_id = "MetaTestExtension";
+      has_cursor = FALSE;
+      break;
+    case CLUTTER_JOYSTICK_DEVICE:
+      product_id = "MetaTestJoystick";
+      break;
+    case CLUTTER_TABLET_DEVICE:
+      product_id = "MetaTestTablet";
+      break;
+    case CLUTTER_TOUCHPAD_DEVICE:
+      product_id = "MetaTestTouchpad";
+      break;
+    case CLUTTER_TOUCHSCREEN_DEVICE:
+      product_id = "MetaTestTouchscreen";
+      break;
+    case CLUTTER_PEN_DEVICE:
+      product_id = "MetaTestPen";
+      break;
+    case CLUTTER_ERASER_DEVICE:
+      product_id = "MetaTestEraser";
+      break;
+    case CLUTTER_CURSOR_DEVICE:
+      product_id = "MetaTestCursor";
+      break;
+    case CLUTTER_PAD_DEVICE:
+      product_id = "MetaTestPad";
+      has_cursor = FALSE;
+      break;
+
+    default:
+      g_assert_not_reached ();
+    }
+
+  device = g_object_new (CLUTTER_TYPE_INPUT_DEVICE,
+                         "name", name,
+                         "device-type", CLUTTER_TOUCHSCREEN_DEVICE,
+                         "seat", seat,
+                         "has-cursor", has_cursor,
+                         "backend", clutter_backend,
+                         "vendor-id", "MetaTest",
+                         "product-id", product_id,
+                         "n-buttons", n_buttons,
+                         NULL);
+
+  event = clutter_event_new (CLUTTER_DEVICE_ADDED);
+  clutter_event_set_device (event, device);
+  clutter_event_set_stage (event, stage);
+  clutter_event_put (event);
+  clutter_event_free (event);
+
+  return device;
+}
+
+void
+meta_backend_test_remove_device (MetaBackendTest    *backend_test,
+                                 ClutterInputDevice *device)
+{
+  MetaBackend *backend = META_BACKEND (backend_test);
+  ClutterStage *stage = CLUTTER_STAGE (meta_backend_get_stage (backend));
+  ClutterEvent *event;
+
+  event = clutter_event_new (CLUTTER_DEVICE_REMOVED);
+  clutter_event_set_device (event, device);
+  clutter_event_set_stage (event, stage);
+  clutter_event_put (event);
+  clutter_event_free (event);
+}
+
 static void
 meta_backend_test_class_init (MetaBackendTestClass *klass)
 {

src/tests/meta-backend-test.h

@@ -34,4 +34,15 @@ void meta_backend_test_set_is_lid_closed (MetaBackendTest *backend_test,
 META_EXPORT
 MetaGpu * meta_backend_test_get_gpu (MetaBackendTest *backend_test);
 
+META_EXPORT_TEST
+ClutterInputDevice * meta_backend_test_add_test_device (MetaBackendTest        *backend,
+                                                        const char             *name,
+                                                        ClutterInputDeviceType  device_type,
+                                                        int                     n_buttons);
+
+META_EXPORT_TEST
+void meta_backend_test_remove_device (MetaBackendTest    *backend,
+                                      ClutterInputDevice *device);
+
+
 #endif /* META_BACKEND_TEST_H */