[macOS] Add methods to modify global and dock menus. Add ability to open multiple editor/project manager instances, recent/favourite project list to project manager dock menu and opened scene list to editor dock menu.

editor/editor_node.cpp

@@ -135,6 +135,8 @@ void EditorNode::_update_scene_tabs() {
 
 	bool show_rb = EditorSettings::get_singleton()->get("interface/scene_tabs/show_script_button");
 
+	OS::get_singleton()->global_menu_clear("_dock");
+
 	scene_tabs->clear_tabs();
 	Ref<Texture> script_icon = gui_base->get_icon("Script", "EditorIcons");
 	for (int i = 0; i < editor_data.get_edited_scene_count(); i++) {
@@ -149,11 +151,16 @@ void EditorNode::_update_scene_tabs() {
 		bool unsaved = (i == current) ? saved_version != editor_data.get_undo_redo().get_version() : editor_data.get_scene_version(i) != 0;
 		scene_tabs->add_tab(editor_data.get_scene_title(i) + (unsaved ? "(*)" : ""), icon);
 
+		OS::get_singleton()->global_menu_add_item("_dock", editor_data.get_scene_title(i) + (unsaved ? "(*)" : ""), GLOBAL_SCENE, i);
+
 		if (show_rb && editor_data.get_scene_root_script(i).is_valid()) {
 			scene_tabs->set_tab_right_button(i, script_icon);
 		}
 	}
 
+	OS::get_singleton()->global_menu_add_separator("_dock");
+	OS::get_singleton()->global_menu_add_item("_dock", TTR("New Window"), GLOBAL_NEW_WINDOW, Variant());
+
 	scene_tabs->set_current_tab(editor_data.get_edited_scene());
 
 	if (scene_tabs->get_offset_buttons_visible()) {
@@ -290,6 +297,7 @@ void EditorNode::_notification(int p_what) {
 			get_tree()->get_root()->set_as_audio_listener_2d(false);
 			get_tree()->set_auto_accept_quit(false);
 			get_tree()->connect("files_dropped", this, "_dropped_files");
+			get_tree()->connect("global_menu_action", this, "_global_menu_action");
 
 			/* DO NOT LOAD SCENES HERE, WAIT FOR FILE SCANNING AND REIMPORT TO COMPLETE */
 		} break;
@@ -4941,6 +4949,23 @@ void EditorNode::remove_tool_menu_item(const String &p_name) {
 	}
 }
 
+void EditorNode::_global_menu_action(const Variant &p_id, const Variant &p_meta) {
+
+	int id = (int)p_id;
+	if (id == GLOBAL_NEW_WINDOW) {
+		if (OS::get_singleton()->get_main_loop()) {
+			List<String> args;
+			String exec = OS::get_singleton()->get_executable_path();
+
+			OS::ProcessID pid = 0;
+			OS::get_singleton()->execute(exec, args, false, &pid);
+		}
+	} else if (id == GLOBAL_SCENE) {
+		int idx = (int)p_meta;
+		scene_tabs->set_current_tab(idx);
+	}
+}
+
 void EditorNode::_dropped_files(const Vector<String> &p_files, int p_screen) {
 
 	String to_path = ProjectSettings::get_singleton()->globalize_path(get_filesystem_dock()->get_selected_path());
@@ -5322,6 +5347,7 @@ void EditorNode::_bind_methods() {
 
 	ClassDB::bind_method("_clear_undo_history", &EditorNode::_clear_undo_history);
 	ClassDB::bind_method("_dropped_files", &EditorNode::_dropped_files);
+	ClassDB::bind_method(D_METHOD("_global_menu_action"), &EditorNode::_global_menu_action, DEFVAL(Variant()));
 	ClassDB::bind_method("_toggle_distraction_free_mode", &EditorNode::_toggle_distraction_free_mode);
 	ClassDB::bind_method("edit_item_resource", &EditorNode::edit_item_resource);
 

editor/editor_node.h

@@ -207,6 +207,9 @@ private:
 
 		SET_VIDEO_DRIVER_SAVE_AND_RESTART,
 
+		GLOBAL_NEW_WINDOW,
+		GLOBAL_SCENE,
+
 		IMPORT_PLUGIN_BASE = 100,
 
 		TOOL_MENU_BASE = 1000
@@ -504,6 +507,7 @@ private:
 	void _add_to_recent_scenes(const String &p_scene);
 	void _update_recent_scenes();
 	void _open_recent_scene(int p_idx);
+	void _global_menu_action(const Variant &p_id, const Variant &p_meta);
 	void _dropped_files(const Vector<String> &p_files, int p_screen);
 	void _add_dropped_files_recursive(const Vector<String> &p_files, String to_path);
 	String _recent_scene;

editor/project_manager.cpp

@@ -946,6 +946,11 @@ public:
 	static const char *SIGNAL_SELECTION_CHANGED;
 	static const char *SIGNAL_PROJECT_ASK_OPEN;
 
+	enum MenuOptions {
+		GLOBAL_NEW_WINDOW,
+		GLOBAL_OPEN_PROJECT
+	};
+
 	// Can often be passed by copy
 	struct Item {
 		String project_key;
@@ -1181,6 +1186,7 @@ void ProjectList::load_projects() {
 	_projects.clear();
 	_last_clicked = "";
 	_selected_project_keys.clear();
+	OS::get_singleton()->global_menu_clear("_dock");
 
 	// Load data
 	// TODO Would be nice to change how projects and favourites are stored... it complicates things a bit.
@@ -1218,6 +1224,9 @@ void ProjectList::load_projects() {
 		create_project_item_control(i);
 	}
 
+	OS::get_singleton()->global_menu_add_separator("_dock");
+	OS::get_singleton()->global_menu_add_item("_dock", TTR("New Window"), GLOBAL_NEW_WINDOW, Variant());
+
 	sort_projects();
 
 	set_v_scroll(0);
@@ -1305,6 +1314,7 @@ void ProjectList::create_project_item_control(int p_index) {
 	fpath->set_clip_text(true);
 
 	_scroll_children->add_child(hb);
+	OS::get_singleton()->global_menu_add_item("_dock", item.project_name + " ( " + item.path + " )", GLOBAL_OPEN_PROJECT, Variant(item.path.plus_file("project.godot")));
 	item.control = hb;
 }
 
@@ -1894,6 +1904,29 @@ void ProjectManager::_confirm_update_settings() {
 	_open_selected_projects();
 }
 
+void ProjectManager::_global_menu_action(const Variant &p_id, const Variant &p_meta) {
+
+	int id = (int)p_id;
+	if (id == ProjectList::GLOBAL_NEW_WINDOW) {
+		List<String> args;
+		String exec = OS::get_singleton()->get_executable_path();
+
+		OS::ProcessID pid = 0;
+		OS::get_singleton()->execute(exec, args, false, &pid);
+	} else if (id == ProjectList::GLOBAL_OPEN_PROJECT) {
+		String conf = (String)p_meta;
+
+		if (conf != String()) {
+			List<String> args;
+			args.push_back(conf);
+			String exec = OS::get_singleton()->get_executable_path();
+
+			OS::ProcessID pid = 0;
+			OS::get_singleton()->execute(exec, args, false, &pid);
+		}
+	}
+}
+
 void ProjectManager::_open_selected_projects() {
 
 	const Set<String> &selected_list = _project_list->get_selected_project_keys();
@@ -2236,6 +2269,7 @@ void ProjectManager::_bind_methods() {
 
 	ClassDB::bind_method("_open_selected_projects_ask", &ProjectManager::_open_selected_projects_ask);
 	ClassDB::bind_method("_open_selected_projects", &ProjectManager::_open_selected_projects);
+	ClassDB::bind_method(D_METHOD("_global_menu_action"), &ProjectManager::_global_menu_action, DEFVAL(Variant()));
 	ClassDB::bind_method("_run_project", &ProjectManager::_run_project);
 	ClassDB::bind_method("_run_project_confirm", &ProjectManager::_run_project_confirm);
 	ClassDB::bind_method("_scan_projects", &ProjectManager::_scan_projects);
@@ -2561,6 +2595,7 @@ ProjectManager::ProjectManager() {
 	}
 
 	SceneTree::get_singleton()->connect("files_dropped", this, "_files_dropped");
+	SceneTree::get_singleton()->connect("global_menu_action", this, "_global_menu_action");
 
 	run_error_diag = memnew(AcceptDialog);
 	gui_base->add_child(run_error_diag);

editor/project_manager.h

@@ -43,6 +43,7 @@ class ProjectList;
 class ProjectListFilter;
 
 class ProjectManager : public Control {
+
 	GDCLASS(ProjectManager, Control);
 
 	Button *erase_btn;
@@ -96,6 +97,7 @@ class ProjectManager : public Control {
 	void _restart_confirm();
 	void _exit_dialog();
 	void _scan_begin(const String &p_base);
+	void _global_menu_action(const Variant &p_id, const Variant &p_meta);
 
 	void _confirm_update_settings();