Merge pull request #47796 from Calinou/editor-add-save-on-focus-loss-option

Add a "save on focus loss" editor setting (disabled by default)

editor/editor_node.cpp

@@ -609,7 +609,7 @@ void EditorNode::_notification(int p_what) {
 		} break;
 
 		case NOTIFICATION_APPLICATION_FOCUS_IN: {
-			// Restore the original FPS cap after focusing back on the editor
+			// Restore the original FPS cap after focusing back on the editor.
 			OS::get_singleton()->set_low_processor_usage_mode_sleep_usec(int(EDITOR_GET("interface/editor/low_processor_mode_sleep_usec")));
 
 			EditorFileSystem::get_singleton()->scan_changes();
@@ -617,7 +617,12 @@ void EditorNode::_notification(int p_what) {
 		} break;
 
 		case NOTIFICATION_APPLICATION_FOCUS_OUT: {
-			// Set a low FPS cap to decrease CPU/GPU usage while the editor is unfocused
+			// Save on focus loss before applying the FPS limit to avoid slowing down the saving process.
+			if (EDITOR_GET("interface/editor/save_on_focus_loss")) {
+				_menu_option_confirm(FILE_SAVE_SCENE, false);
+			}
+
+			// Set a low FPS cap to decrease CPU/GPU usage while the editor is unfocused.
 			OS::get_singleton()->set_low_processor_usage_mode_sleep_usec(int(EDITOR_GET("interface/editor/unfocused_low_processor_mode_sleep_usec")));
 		} break;
 
@@ -5845,6 +5850,7 @@ EditorNode::EditorNode() {
 	EDITOR_DEF("run/output/always_open_output_on_play", true);
 	EDITOR_DEF("run/output/always_close_output_on_stop", true);
 	EDITOR_DEF("run/auto_save/save_before_running", true);
+	EDITOR_DEF("interface/editor/save_on_focus_loss", false);
 	EDITOR_DEF_RST("interface/editor/save_each_scene_on_quit", true);
 	EDITOR_DEF("interface/editor/show_update_spinner", false);
 	EDITOR_DEF("interface/editor/update_continuously", false);