"FileSystem" dock now instance all selected scenes in one action

tools/editor/editor_node.cpp

@@ -3822,6 +3822,11 @@ void EditorNode::request_instance_scene(const String &p_path) {
 
 }
 
+void EditorNode::request_instance_scenes(const Vector<String>& p_files) {
+
+	scene_tree_dock->instance_scenes(p_files);
+}
+
 FileSystemDock *EditorNode::get_scenes_dock() {
 
 	return scenes_dock;
@@ -3831,10 +3836,9 @@ SceneTreeDock *EditorNode::get_scene_tree_dock() {
 	return scene_tree_dock;
 }
 
-void EditorNode::_instance_request(const String& p_path){
-
+void EditorNode::_instance_request(const Vector<String>& p_files) {
 
-	request_instance_scene(p_path);
+	request_instance_scenes(p_files);
 }
 
 void EditorNode::_property_keyed(const String& p_keyed,const Variant& p_value,bool p_advance) {

tools/editor/editor_node.h

@@ -452,7 +452,7 @@ private:
 	void _save_scene(String p_file, int idx = -1);
 
 
-	void _instance_request(const String& p_path);
+	void _instance_request(const Vector<String>& p_files);
 
 	void _property_keyed(const String& p_keyed, const Variant& p_value, bool p_advance);
 	void _transform_keyed(Object *sp,const String& p_sub,const Transform& p_key);
@@ -666,6 +666,7 @@ public:
 	static VSplitContainer *get_top_split() { return singleton->top_split; }
 
 	void request_instance_scene(const String &p_path);
+	void request_instance_scenes(const Vector<String>& p_files);
 	FileSystemDock *get_scenes_dock();
 	SceneTreeDock *get_scene_tree_dock();
 	static UndoRedo* get_undo_redo() { return &singleton->editor_data.get_undo_redo(); }

tools/editor/filesystem_dock.cpp

@@ -950,14 +950,20 @@ void FileSystemDock::_file_option(int p_option) {
 		} break;
 		case FILE_INSTANCE: {
 
+			Vector<String> paths;
+
 			for (int i = 0; i<files->get_item_count(); i++) {
 				if (!files->is_selected(i))
 					continue;
 				String path =files->get_item_metadata(i);
 				if (EditorFileSystem::get_singleton()->get_file_type(path)=="PackedScene") {
-					emit_signal("instance",path);
+					paths.push_back(path);
 				}
 			}
+
+			if (!paths.empty()) {
+				emit_signal("instance", paths);
+			}
 		} break;
 		case FILE_DEPENDENCIES: {
 
@@ -1596,7 +1602,7 @@ void FileSystemDock::_bind_methods() {
 	ObjectTypeDB::bind_method(_MD("_preview_invalidated"),&FileSystemDock::_preview_invalidated);
 
 
-	ADD_SIGNAL(MethodInfo("instance"));
+	ADD_SIGNAL(MethodInfo("instance", PropertyInfo(Variant::STRING_ARRAY, "files")));
 	ADD_SIGNAL(MethodInfo("open"));
 
 }

tools/editor/scene_tree_dock.cpp

@@ -106,11 +106,30 @@ void SceneTreeDock::instance(const String& p_file) {
 
 	Vector<String> scenes;
 	scenes.push_back(p_file);
-	instance_scenes(scenes,parent,-1);
+	_perform_instance_scenes(scenes,parent,-1);
 
 }
 
-void SceneTreeDock::instance_scenes(const Vector<String>& p_files,Node* parent,int p_pos) {
+void SceneTreeDock::instance_scenes(const Vector<String>& p_files, Node *p_parent) {
+
+	Node *parent = p_parent;
+
+	if (!parent) {
+		parent = scene_tree->get_selected();
+	}
+
+	if (!parent || !edited_scene) {
+
+		accept->get_ok()->set_text(TTR("OK"));
+		accept->set_text(TTR("No parent to instance the scenes at."));
+		accept->popup_centered_minsize();
+		return;
+	};
+
+	_perform_instance_scenes(p_files, parent, -1);
+}
+
+void SceneTreeDock::_perform_instance_scenes(const Vector<String>& p_files,Node* parent,int p_pos) {
 
 
 
@@ -1677,7 +1696,7 @@ void SceneTreeDock::_files_dropped(Vector<String> p_files,NodePath p_to,int p_ty
 
 	int to_pos=-1;
 	_normalize_drop(node,to_pos,p_type);
-	instance_scenes(p_files,node,to_pos);
+	_perform_instance_scenes(p_files,node,to_pos);
 }
 
 void SceneTreeDock::_nodes_dragged(Array p_nodes,NodePath p_to,int p_type) {

tools/editor/scene_tree_dock.h

@@ -148,6 +148,8 @@ class SceneTreeDock : public VBoxContainer {
 
 	void _filter_changed(const String& p_filter);
 
+	void _perform_instance_scenes(const Vector<String>& p_files,Node* parent,int p_pos);
+
 protected:
 
 	void _notification(int p_what);
@@ -160,7 +162,7 @@ public:
 	void import_subscene();
 	void set_edited_scene(Node* p_scene);
 	void instance(const String& p_path);
-	void instance_scenes(const Vector<String>& p_files,Node* parent,int p_pos);
+	void instance_scenes(const Vector<String>& p_files, Node *p_parent=NULL);
 	void set_selected(Node *p_node, bool p_emit_selected=false);
 	void fill_path_renames(Node* p_node, Node *p_new_parent, List<Pair<NodePath,NodePath> > *p_renames);
 	void perform_node_renames(Node* p_base,List<Pair<NodePath,NodePath> > *p_renames, Map<Ref<Animation>, Set<int> > *r_rem_anims=NULL);