Allow the Path tool to edit an upstream path even if there's a type conversion midway (#2055)

Remove type check when iterating upstream

Convert to doc comment

editor/src/messages/portfolio/document/graph_operation/utility_types.rs

@@ -5,6 +5,7 @@ use crate::messages::portfolio::document::utility_types::network_interface::{sel
 use crate::messages::prelude::*;
 
 use bezier_rs::Subpath;
+use graph_craft::concrete;
 use graph_craft::document::value::TaggedValue;
 use graph_craft::document::{NodeId, NodeInput};
 use graphene_core::raster::{BlendMode, ImageFrame};
@@ -16,6 +17,7 @@ use graphene_core::{Artboard, Color};
 
 use glam::{DAffine2, DVec2, IVec2};
 use graphene_std::vector::VectorData;
+use graphene_std::GraphicGroup;
 
 #[derive(PartialEq, Clone, Copy, Debug, serde::Serialize, serde::Deserialize)]
 pub enum TransformIn {
@@ -236,11 +238,13 @@ impl<'a> ModifyInputsContext<'a> {
 			}
 		})
 	}
-	// Gets the node id of a node with a specific reference that is upstream from the layer node, and creates it if it does not exist
+	/// Gets the node id of a node with a specific reference that is upstream from the layer node, and creates it if it does not exist
+	/// The returned node is based on the selection dots in the layer. The right most dot will always insert/access the path that flows directly into the layer
+	/// Each dot after that represents an existing path node
+	/// If there is an existing upstream node, then it will always be returned first.
 	pub fn existing_node_id(&mut self, reference: &'static str) -> Option<NodeId> {
 		// Start from the layer node or export
 		let output_layer = self.get_output_layer()?;
-		let layer_input_type = self.network_interface.input_type(&InputConnector::node(output_layer.to_node(), 1), &[]).0.nested_type();
 
 		let upstream = self
 			.network_interface
@@ -249,8 +253,6 @@ impl<'a> ModifyInputsContext<'a> {
 		// Take until another layer node is found (but not the first layer node)
 		let mut existing_node_id = None;
 		for upstream_node in upstream.collect::<Vec<_>>() {
-			let upstream_node_input_type = self.network_interface.input_type(&InputConnector::node(upstream_node, 0), &[]).0.nested_type();
-
 			// Check if this is the node we have been searching for.
 			if self.network_interface.reference(&upstream_node, &[]).is_some_and(|node_reference| node_reference == reference) {
 				existing_node_id = Some(upstream_node);
@@ -261,8 +263,7 @@ impl<'a> ModifyInputsContext<'a> {
 				self.layer_node.map(|layer| layer.to_node()) == Some(node_id) || self.network_interface.network(&[]).unwrap().exports.iter().any(|export| export.as_node() == Some(node_id))
 			};
 
-			// If the type changes then break?? This should at least be after checking if the node is correct (otherwise the brush tool breaks.)
-			if !is_traversal_start(upstream_node) && (self.network_interface.is_layer(&upstream_node, &[]) || upstream_node_input_type != layer_input_type) {
+			if !is_traversal_start(upstream_node) && (self.network_interface.is_layer(&upstream_node, &[])) {
 				break;
 			}
 		}
@@ -278,6 +279,20 @@ impl<'a> ModifyInputsContext<'a> {
 			log::error!("Node type {} does not exist in ModifyInputsContext::existing_node_id", reference);
 			return None;
 		};
+		// If inserting a path node, insert a flatten vector elements if the type is a graphic group.
+		// TODO: Allow the path node to operate on Graphic Group data by utilizing the reference for each vector data in a group.
+		if node_definition.identifier == "Path" {
+			let layer_input_type = self.network_interface.input_type(&InputConnector::node(output_layer.to_node(), 1), &[]).0.nested_type();
+			if layer_input_type == concrete!(GraphicGroup) {
+				let Some(flatten_vector_elements_definition) = resolve_document_node_type("Flatten Vector Elements") else {
+					log::error!("Flatten Vector Elements does not exist in ModifyInputsContext::existing_node_id");
+					return None;
+				};
+				let node_id = NodeId::new();
+				self.network_interface.insert_node(node_id, flatten_vector_elements_definition.default_node_template(), &[]);
+				self.network_interface.move_node_to_chain_start(&node_id, output_layer, &[]);
+			}
+		}
 		let node_id = NodeId::new();
 		self.network_interface.insert_node(node_id, node_definition.default_node_template(), &[]);
 		self.network_interface.move_node_to_chain_start(&node_id, output_layer, &[]);

editor/src/messages/tool/common_functionality/shape_editor.rs

@@ -6,7 +6,6 @@ use crate::messages::portfolio::document::utility_types::network_interface::Node
 use crate::messages::prelude::*;
 
 use bezier_rs::{Bezier, BezierHandles, TValue};
-use dyn_any::DynAny;
 use graphene_core::transform::Transform;
 use graphene_core::vector::{ManipulatorPointId, PointId, VectorData, VectorModificationType};
 
@@ -1071,11 +1070,7 @@ impl ShapeState {
 				continue;
 			};
 
-			for point in self.selected_points() {
-				if let Some(_) = point.as_anchor() {
-					continue;
-				}
-
+			for point in self.selected_points().filter(|point| point.as_handle().is_some()) {
 				let anchor = point.get_anchor(&vector_data);
 				if let Some(handles) = point.get_handle_pair(&vector_data) {
 					points_to_select.push((layer, anchor, Some(handles[1].to_manipulator_point())));

node-graph/gcore/src/vector/vector_nodes.rs

@@ -547,7 +547,9 @@ async fn flatten_vector_elements<F: 'n + Send>(
 	graphic_group_input: impl Node<F, Output = GraphicGroup>,
 ) -> VectorData {
 	let graphic_group = graphic_group_input.eval(footprint).await;
-
+	// A node based solution to support passing through vector data could be a network node with a cache node connected to
+	// a flatten vector elements connected to an if else node, another connection from the cache directly
+	// To the if else node, and another connection from the cache to a matches type node connected to the if else node.
 	fn concat_group(graphic_group: &GraphicGroup, current_transform: DAffine2, result: &mut VectorData) {
 		for (element, reference) in graphic_group.iter() {
 			match element {