Improve collect_nodes

editor/src/messages/frontend/frontend_message.rs

@@ -2,7 +2,7 @@ use super::utility_types::{DocumentDetails, MouseCursorIcon, OpenDocument};
 use crate::messages::app_window::app_window_message_handler::AppWindowPlatform;
 use crate::messages::layout::utility_types::widget_prelude::*;
 use crate::messages::portfolio::document::node_graph::utility_types::{
-	BoxSelection, ContextMenuInformation, FrontendClickTargets, FrontendGraphInput, FrontendGraphOutput, FrontendNode, FrontendNodeOrLayer, FrontendNodeType, FrontendXY, FrontendXY, Transform,
+	BoxSelection, ContextMenuInformation, FrontendClickTargets, FrontendGraphInput, FrontendGraphOutput, FrontendNodeToRender, FrontendNodeType, FrontendXY, Transform,
 };
 use crate::messages::portfolio::document::utility_types::nodes::{JsRawBuffer, LayerPanelEntry, RawBuffer};
 use crate::messages::portfolio::document::utility_types::wires::{WirePath, WirePathUpdate};

editor/src/messages/portfolio/document/node_graph/node_graph_message_handler.rs

@@ -6,9 +6,7 @@ use crate::messages::layout::utility_types::widget_prelude::*;
 use crate::messages::portfolio::document::document_message_handler::navigation_controls;
 use crate::messages::portfolio::document::graph_operation::utility_types::ModifyInputsContext;
 use crate::messages::portfolio::document::node_graph::document_node_definitions::NodePropertiesContext;
-use crate::messages::portfolio::document::node_graph::utility_types::{
-	ContextMenuData, Direction, FrontendGraphDataType, FrontendLayer, FrontendNodeMetadata, FrontendNodeOrLayer, FrontendXY, FrontendXY,
-};
+use crate::messages::portfolio::document::node_graph::utility_types::{ContextMenuData, Direction, FrontendGraphDataType, FrontendXY};
 use crate::messages::portfolio::document::utility_types::document_metadata::LayerNodeIdentifier;
 use crate::messages::portfolio::document::utility_types::misc::GroupFolderType;
 use crate::messages::portfolio::document::utility_types::network_interface::{
@@ -24,7 +22,7 @@ use crate::messages::tool::tool_messages::tool_prelude::{Key, MouseMotion};
 use crate::messages::tool::utility_types::{HintData, HintGroup, HintInfo};
 use glam::{DAffine2, DVec2, IVec2};
 use graph_craft::document::{DocumentNodeImplementation, NodeId, NodeInput};
-use graph_craft::proto::{GraphErrors, NodeMetadata};
+use graph_craft::proto::GraphErrors;
 use graphene_std::math::math_ext::QuadExt;
 use graphene_std::vector::algorithms::bezpath_algorithms::bezpath_is_inside_bezpath;
 use graphene_std::*;
@@ -1638,7 +1636,7 @@ impl<'a> MessageHandler<NodeGraphMessage, NodeGraphMessageContext<'a>> for NodeG
 				responses.add(NodeGraphMessage::UpdateActionButtons);
 				if graph_view_overlay_open {
 					let nodes_to_render = network_interface.collect_nodes(&self.node_graph_errors, breadcrumb_network_path);
-					self.frontend_nodes = nodes_to_render.iter().map(|node| node.id).collect();
+					self.frontend_nodes = nodes_to_render.iter().map(|node| node.metadata.node_id).collect();
 					let previewed_node = network_interface.previewed_node(breadcrumb_network_path);
 					responses.add(FrontendMessage::UpdateNodeGraphNodes {
 						nodes_to_render,

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

@@ -89,6 +89,8 @@ pub struct FrontendGraphOutput {
 // Metadata that is common to nodes and layers
 #[derive(Clone, Debug, Eq, PartialEq, serde::Serialize, serde::Deserialize, specta::Type)]
 pub struct FrontendNodeMetadata {
+	#[serde(rename = "node_id")]
+	pub node_id: NodeId,
 	// TODO: Remove and replace with popup manager system
 	#[serde(rename = "canBeLayer")]
 	pub can_be_layer: bool,
@@ -125,7 +127,7 @@ pub struct FrontendLayer {
 	#[serde(rename = "chainWidth")]
 	pub chain_width: u32,
 	#[serde(rename = "layerHasLeftBorderGap")]
-	layer_has_left_border_gap: bool,
+	pub layer_has_left_border_gap: bool,
 	#[serde(rename = "primaryInputConnectedToLayer")]
 	pub primary_input_connected_to_layer: bool,
 	#[serde(rename = "primaryOutputConnectedToLayer")]
@@ -148,11 +150,17 @@ pub struct FrontendLayer {
 
 #[derive(Clone, Debug, Eq, PartialEq, serde::Serialize, serde::Deserialize, specta::Type)]
 pub struct FrontendNodeOrLayer {
-	pub metadata: FrontendNodeMetadata,
 	pub node: Option<FrontendNode>,
 	pub layer: Option<FrontendLayer>,
 }
 
+#[derive(Clone, Debug, Eq, PartialEq, serde::Serialize, serde::Deserialize, specta::Type)]
+pub struct FrontendNodeToRender {
+	pub metadata: FrontendNodeMetadata,
+	#[serde(rename = "nodeOrLayer")]
+	pub node_or_layer: FrontendNodeOrLayer,
+}
+
 #[derive(Clone, Debug, Eq, PartialEq, serde::Serialize, serde::Deserialize, specta::Type)]
 pub struct FrontendNodeType {
 	pub name: Cow<'static, str>,

editor/src/messages/portfolio/document/utility_types/network_interface/node_graph.rs

@@ -5,14 +5,16 @@ use graphene_std::uuid::NodeId;
 use crate::{
 	consts::{EXPORTS_TO_RIGHT_EDGE_PIXEL_GAP, EXPORTS_TO_TOP_EDGE_PIXEL_GAP, GRID_SIZE, IMPORTS_TO_LEFT_EDGE_PIXEL_GAP, IMPORTS_TO_TOP_EDGE_PIXEL_GAP},
 	messages::portfolio::document::{
-		node_graph::utility_types::{FrontendGraphDataType, FrontendGraphInput, FrontendGraphOutput, FrontendNode, FrontendXY},
+		node_graph::utility_types::{
+			FrontendGraphDataType, FrontendGraphInput, FrontendGraphOutput, FrontendLayer, FrontendNode, FrontendNodeMetadata, FrontendNodeOrLayer, FrontendNodeToRender, FrontendXY,
+		},
 		utility_types::network_interface::{FlowType, InputConnector, NodeNetworkInterface, OutputConnector},
 	},
 };
 
 // Functions used to collect data from the network interface for use in rendering the node graph
 impl NodeNetworkInterface {
-	pub fn collect_nodes(&mut self, node_graph_errors: &GraphErrors, network_path: &[NodeId]) -> Vec<FrontendNode> {
+	pub fn collect_nodes(&mut self, node_graph_errors: &GraphErrors, network_path: &[NodeId]) -> Vec<FrontendNodeToRender> {
 		let Some(network) = self.nested_network(network_path) else {
 			log::error!("Could not get nested network when collecting nodes");
 			return Vec::new();
@@ -22,32 +24,6 @@ impl NodeNetworkInterface {
 		for (node_id, visible) in network.nodes.iter().map(|(node_id, node)| (*node_id, node.visible)).collect::<Vec<_>>() {
 			let node_id_path = [network_path, &[node_id]].concat();
 
-			let primary_input_connector = InputConnector::node(node_id, 0);
-
-			let primary_input = if self.input_from_connector(&primary_input_connector, network_path).is_some_and(|input| input.is_exposed()) {
-				self.frontend_input_from_connector(&primary_input_connector, network_path)
-			} else {
-				None
-			};
-			let exposed_inputs = (1..self.number_of_inputs(&node_id, network_path))
-				.filter_map(|input_index| self.frontend_input_from_connector(&InputConnector::node(node_id, input_index), network_path))
-				.collect();
-
-			let primary_output = self.frontend_output_from_connector(&OutputConnector::node(node_id, 0), network_path);
-
-			let exposed_outputs = (1..self.number_of_outputs(&node_id, network_path))
-				.filter_map(|output_index| self.frontend_output_from_connector(&OutputConnector::node(node_id, output_index), network_path))
-				.collect();
-
-			let Some(position) = self.position(&node_id, network_path) else {
-				log::error!("Could not get position for node: {node_id}");
-				continue;
-			};
-			let position = FrontendXY { x: position.x, y: position.y };
-			let previewed = self.previewed_node(network_path) == Some(node_id);
-
-			let locked = self.is_locked(&node_id, network_path);
-
 			let errors = node_graph_errors
 				.iter()
 				.find(|error| error.node_path == node_id_path)
@@ -60,31 +36,73 @@ impl NodeNetworkInterface {
 					}
 				});
 
-			nodes.push(FrontendNode {
-				id: node_id,
-				is_layer: self.node_metadata(&node_id, network_path).is_some_and(|node_metadata| node_metadata.persistent_metadata.is_layer()),
+			let metadata = FrontendNodeMetadata {
+				node_id,
 				can_be_layer: self.is_eligible_to_be_layer(&node_id, network_path),
+				display_name: self.display_name(&node_id, network_path),
 				selected: selected_nodes.0.contains(&node_id),
 				reference: self.reference(&node_id, network_path).cloned().unwrap_or_default(),
-				display_name: self.display_name(&node_id, network_path),
-				previewed,
 				visible,
 				errors,
+			};
 
-				primary_input,
-				exposed_inputs,
-				primary_output,
-				exposed_outputs,
-				position,
+			let node_or_layer = match self.is_layer(&node_id, network_path) {
+				true => {
+					let Some(position) = self.position(&node_id, network_path) else {
+						log::error!("Could not get position for node: {node_id}");
+						continue;
+					};
+					let position = FrontendXY { x: position.x, y: position.y };
 
-				locked,
-				chain_width: self.chain_width(&node_id, network_path),
-				layer_has_left_border_gap: self.layer_has_left_border_gap(&node_id, network_path),
-				primary_input_connected_to_layer: self.primary_output_connected_to_layer(&node_id, network_path),
-				primary_output_connected_to_layer: self.primary_input_connected_to_layer(&node_id, network_path),
-			});
+					let Some(bottom_input) = self.frontend_input_from_connector(&InputConnector::node(node_id, 0), network_path) else {
+						log::error!("Layer must have a visible primary input");
+						continue;
+					};
+					let side_input = self.frontend_input_from_connector(&InputConnector::node(node_id, 1), network_path);
+					let Some(output) = self.frontend_output_from_connector(&OutputConnector::node(node_id, 0), network_path) else {
+						log::error!("Layer must have a visible primary output");
+						continue;
+					};
+
+					let layer = Some(FrontendLayer {
+						bottom_input,
+						side_input,
+						output,
+						position,
+						locked: self.is_locked(&node_id, network_path),
+						chain_width: self.chain_width(&node_id, network_path),
+						layer_has_left_border_gap: self.layer_has_left_border_gap(&node_id, network_path),
+						primary_input_connected_to_layer: self.primary_output_connected_to_layer(&node_id, network_path),
+						primary_output_connected_to_layer: self.primary_input_connected_to_layer(&node_id, network_path),
+					});
+					FrontendNodeOrLayer { node: None, layer }
+				}
+				false => {
+					let Some(position) = self.position(&node_id, network_path) else {
+						log::error!("Could not get position for node: {node_id}");
+						continue;
+					};
+
+					let position = FrontendXY { x: position.x, y: position.y };
+
+					let inputs = (0..self.number_of_inputs(&node_id, network_path))
+						.map(|input_index| self.frontend_input_from_connector(&InputConnector::node(node_id, input_index), network_path))
+						.collect();
+
+					let outputs = (0..self.number_of_outputs(&node_id, network_path))
+						.map(|output_index| self.frontend_output_from_connector(&OutputConnector::node(node_id, output_index), network_path))
+						.collect();
+
+					let node = Some(FrontendNode { position, inputs, outputs });
+
+					FrontendNodeOrLayer { node, layer: None }
+				}
+			};
+
+			let frontend_node_to_render = FrontendNodeToRender { metadata, node_or_layer };
+
+			nodes.push(frontend_node_to_render);
 		}
-
 		nodes
 	}
 
@@ -146,12 +164,15 @@ impl NodeNetworkInterface {
 		// 	}
 		// };
 
+		let connected_to_node = self.upstream_output_connector(input_connector, network_path).and_then(|output_connector| output_connector.node_id());
+
 		Some(FrontendGraphInput {
 			data_type,
 			resolved_type,
 			name,
 			description,
 			connected_to,
+			connected_to_node,
 		})
 	}
 

frontend/src/messages.ts

@@ -78,7 +78,7 @@ export class UpdateLayerWidths extends JsMessage {
 }
 
 export class UpdateNodeGraphNodes extends JsMessage {
-	readonly nodesToRender!: FrontendNode[];
+	readonly nodesToRender!: FrontendNodeToRender[];
 
 	readonly inSelectedNetwork!: boolean;
 
@@ -199,6 +199,8 @@ export class FrontendGraphOutput {
 }
 
 export class FrontendNodeMetadata {
+	readonly nodeId!: bigint;
+
 	readonly canBeLayer!: boolean;
 
 	readonly displayName!: string;
@@ -255,11 +257,15 @@ export class FrontendLayerPosition {
 }
 
 export class FrontendNodeOrLayer {
-	readonly metadata!: FrontendNodeMetadata;
 	readonly node!: FrontendNode | undefined;
 	readonly layer!: FrontendLayer | undefined;
 }
 
+export class FrontendNodeToRender {
+	readonly metadata!: FrontendNodeMetadata;
+	readonly nodeOrLayer!: FrontendNodeOrLayer;
+}
+
 export class UpdateCentralNodeGraph extends JsMessage {
 	readonly nodeOrLayer!: FrontendNodeOrLayer[];
 	readonly inSelectedNetwork!: boolean;

frontend/src/state-providers/node-graph.ts

@@ -1,11 +1,11 @@
 import { writable } from "svelte/store";
 
 import { type Editor } from "@graphite/editor";
-import type { FrontendNodeOrLayer } from "@graphite/messages";
 import {
 	type Box,
 	type FrontendClickTargets,
 	type ContextMenuInformation,
+	type FrontendNodeToRender,
 	type FrontendNodeType,
 	type WirePath,
 	ClearAllNodeGraphWires,
@@ -102,7 +102,7 @@ export function createNodeGraphState(editor: Editor) {
 		update((state) => {
 			state.nodesToRender.clear();
 			updateNodeGraphNodes.nodesToRender.forEach((node) => {
-				state.nodesToRender.set(node.id, node);
+				state.nodesToRender.set(node.metadata.nodeId, node);
 			});
 			state.inSelectedNetwork = updateNodeGraphNodes.inSelectedNetwork;
 			state.previewedNode = updateNodeGraphNodes.previewedNode;