Add support for opening multiple selected files from disk (#4128)

desktop/src/app.rs

@@ -198,7 +198,7 @@ impl App {
 				};
 				self.send_or_queue_web_message(bytes);
 			}
-			DesktopFrontendMessage::OpenFileDialog { title, filters, context } => {
+			DesktopFrontendMessage::OpenFileDialog { title, filters, multiple, context } => {
 				let app_event_scheduler = self.app_event_scheduler.clone();
 				let _ = thread::spawn(move || {
 					let mut dialog = AsyncFileDialog::new().set_title(title);
@@ -206,14 +206,22 @@ impl App {
 						dialog = dialog.add_filter(filter.name, &filter.extensions);
 					}
 
-					let show_dialog = async move { dialog.pick_file().await.map(|f| f.path().to_path_buf()) };
+					let handles = if multiple {
+						futures::executor::block_on(dialog.pick_files()).unwrap_or_default()
+					} else {
+						futures::executor::block_on(dialog.pick_file()).into_iter().collect()
+					};
 
-					if let Some(path) = futures::executor::block_on(show_dialog)
-						&& let Ok(content) = fs::read(&path)
-					{
+					for handle in handles {
+						let path = handle.path().to_path_buf();
+						match fs::read(&path) {
+							Ok(content) => {
 								let message = DesktopWrapperMessage::FileDialogResult { path, content, context };
 								app_event_scheduler.schedule(AppEvent::DesktopWrapperMessage(message));
 							}
+							Err(e) => tracing::error!("Failed to read file {}: {}", path.display(), e),
+						}
+					}
 				});
 			}
 			DesktopFrontendMessage::SaveFileDialog {

desktop/wrapper/src/intercept_frontend_message.rs

@@ -14,6 +14,7 @@ pub(super) fn intercept_frontend_message(dispatcher: &mut DesktopWrapperMessageD
 			dispatcher.respond(DesktopFrontendMessage::OpenFileDialog {
 				title: "Open Document".to_string(),
 				filters: vec![],
+				multiple: true,
 				context: OpenFileDialogContext::Open,
 			});
 		}
@@ -21,6 +22,7 @@ pub(super) fn intercept_frontend_message(dispatcher: &mut DesktopWrapperMessageD
 			dispatcher.respond(DesktopFrontendMessage::OpenFileDialog {
 				title: "Import File".to_string(),
 				filters: vec![],
+				multiple: false,
 				context: OpenFileDialogContext::Import,
 			});
 		}

desktop/wrapper/src/messages.rs

@@ -16,6 +16,7 @@ pub enum DesktopFrontendMessage {
 	OpenFileDialog {
 		title: String,
 		filters: Vec<FileFilter>,
+		multiple: bool,
 		context: OpenFileDialogContext,
 	},
 	SaveFileDialog {
@@ -102,6 +103,7 @@ pub struct FileFilter {
 	pub extensions: Vec<String>,
 }
 
+#[derive(Clone, Copy)]
 pub enum OpenFileDialogContext {
 	Open,
 	Import,

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

@@ -6442,6 +6442,7 @@ pub struct InputPersistentMetadata {
 	/// A general datastore than can store key value pairs of any types for any input
 	/// Each instance of the input node needs to store its own data, since it can lose the reference to its
 	/// node definition if the node signature is modified by the user. For example adding/removing/renaming an import/export of a network node.
+	#[serde(serialize_with = "graphene_std::vector::serialize_hashmap_as_sorted_object")]
 	pub input_data: HashMap<String, Value>,
 	// An input can override a widget, which would otherwise be automatically generated from the type
 	// The string is the identifier to the widget override function stored in INPUT_OVERRIDES

frontend/src/stores/portfolio.ts

@@ -94,8 +94,8 @@ export function createPortfolioStore(subscriptions: SubscriptionsRouter, editor:
 	});
 
 	subscriptions.subscribeFrontendMessage("TriggerOpen", async () => {
-		const data = await upload(`image/*,.${editor.fileExtension()}`, "data");
-		editor.openFile(data.filename, data.content);
+		const files = await upload(`image/*,.${editor.fileExtension()}`, "data", true);
+		files.forEach((file) => editor.openFile(file.filename, file.content));
 	});
 
 	subscriptions.subscribeFrontendMessage("TriggerImport", async () => {

frontend/src/utility-functions/files.ts

@@ -32,29 +32,44 @@ export function downloadFile(filename: string, content: Uint8Array) {
 export async function upload(accept: string, textOrData: "text"): Promise<UploadResult<string>>;
 export async function upload(accept: string, textOrData: "data"): Promise<UploadResult<Uint8Array>>;
 export async function upload(accept: string, textOrData: "both"): Promise<UploadResult<{ text: string; data: Uint8Array }>>;
-export async function upload(accept: string, textOrData: "text" | "data" | "both"): Promise<UploadResult<string | Uint8Array | { text: string; data: Uint8Array }>> {
+export async function upload(accept: string, textOrData: "data", multiple: true): Promise<UploadResult<Uint8Array>[]>;
+export async function upload(
+	accept: string,
+	textOrData: "text" | "data" | "both",
+	multiple = false,
+): Promise<UploadResult<string | Uint8Array | { text: string; data: Uint8Array }> | UploadResult<Uint8Array>[]> {
 	return new Promise((resolve) => {
 		const element = document.createElement("input");
 		element.type = "file";
 		element.accept = accept;
+		element.multiple = multiple;
 
 		element.addEventListener(
 			"change",
 			async () => {
-				if (element.files?.length) {
-					const file = element.files[0];
+				if (!element.files?.length) return;
 
-					const filename = file.name;
-					const type = file.type;
+				// The `multiple: true` overload constrains `textOrData` to "data", so we know each file produces a Uint8Array
+				if (multiple) {
+					const results = await Promise.all(
+						Array.from(element.files).map(async (file) => ({
+							filename: file.name,
+							type: file.type,
+							content: new Uint8Array(await file.arrayBuffer()),
+						})),
+					);
+					resolve(results);
+					return;
+				}
+
+				const file = element.files[0];
 				const content =
 					textOrData === "text"
 						? await file.text()
 						: textOrData === "data"
 							? new Uint8Array(await file.arrayBuffer())
 							: { text: await file.text(), data: new Uint8Array(await file.arrayBuffer()) };
-
-					resolve({ filename, type, content });
-				}
+				resolve({ filename: file.name, type: file.type, content });
 			},
 			{ capture: false, once: true },
 		);

node-graph/libraries/vector-types/src/vector/vector_modification.rs

@@ -5,14 +5,20 @@ use core_types::uuid::generate_uuid;
 use dyn_any::DynAny;
 use glam::DVec2;
 use kurbo::{BezPath, PathEl, Point};
+use serde::de::{SeqAccess, Visitor};
+use serde::ser::SerializeSeq;
+use serde::{Deserialize, Deserializer, Serialize, Serializer};
 use std::collections::{HashMap, HashSet};
+use std::fmt;
 use std::hash::BuildHasher;
+use std::hash::Hash;
 
 /// Represents a procedural change to the [`PointDomain`] in [`Vector`].
 #[derive(Clone, Debug, Default, PartialEq)]
 #[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
 pub struct PointModification {
 	add: Vec<PointId>,
+	#[cfg_attr(feature = "serde", serde(serialize_with = "serialize_hashset"))]
 	remove: HashSet<PointId>,
 	#[cfg_attr(feature = "serde", serde(serialize_with = "serialize_hashmap", deserialize_with = "deserialize_hashmap"))]
 	delta: HashMap<PointId, DVec2>,
@@ -79,6 +85,7 @@ impl PointModification {
 #[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
 pub struct SegmentModification {
 	add: Vec<SegmentId>,
+	#[cfg_attr(feature = "serde", serde(serialize_with = "serialize_hashset"))]
 	remove: HashSet<SegmentId>,
 	#[cfg_attr(feature = "serde", serde(serialize_with = "serialize_hashmap", deserialize_with = "deserialize_hashmap"))]
 	start_point: HashMap<SegmentId, PointId>,
@@ -250,6 +257,7 @@ impl SegmentModification {
 #[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
 pub struct RegionModification {
 	add: Vec<RegionId>,
+	#[cfg_attr(feature = "serde", serde(serialize_with = "serialize_hashset"))]
 	remove: HashSet<RegionId>,
 	#[cfg_attr(feature = "serde", serde(serialize_with = "serialize_hashmap", deserialize_with = "deserialize_hashmap"))]
 	segment_range: HashMap<RegionId, std::ops::RangeInclusive<SegmentId>>,
@@ -297,7 +305,9 @@ pub struct VectorModification {
 	points: PointModification,
 	segments: SegmentModification,
 	regions: RegionModification,
+	#[cfg_attr(feature = "serde", serde(serialize_with = "serialize_hashset"))]
 	add_g1_continuous: HashSet<[HandleId; 2]>,
+	#[cfg_attr(feature = "serde", serde(serialize_with = "serialize_hashset"))]
 	remove_g1_continuous: HashSet<[HandleId; 2]>,
 }
 
@@ -520,27 +530,65 @@ impl graphene_hash::CacheHash for VectorModification {
 	}
 }
 
-// Do we want to enforce that all serialized/deserialized hashmaps are a vec of tuples?
+// TODO: Do we want to enforce that all serialized/deserialized hashmaps are a vec of tuples?
 // TODO: Eventually remove this document upgrade code
-use serde::de::{SeqAccess, Visitor};
-use serde::ser::SerializeSeq;
-use serde::{Deserialize, Deserializer, Serialize, Serializer};
-use std::fmt;
-use std::hash::Hash;
+/// Serializes as sorted `[[key, value], ...]` (sequence of pairs)
 pub fn serialize_hashmap<K, V, S, H>(hashmap: &HashMap<K, V, H>, serializer: S) -> Result<S::Ok, S::Error>
 where
-	K: Serialize + Eq + Hash,
+	K: Serialize + Eq + Hash + Ord,
 	V: Serialize,
 	S: Serializer,
 	H: BuildHasher,
 {
-	let mut seq = serializer.serialize_seq(Some(hashmap.len()))?;
-	for (key, value) in hashmap {
+	// Sort entries by key so the serialized output is deterministic across runs (HashMap iteration order is randomized).
+	// Removes a major source of churn in saved-document diffs without affecting load behavior.
+	let mut entries: Vec<_> = hashmap.iter().collect();
+	entries.sort_by(|a, b| a.0.cmp(b.0));
+
+	let mut seq = serializer.serialize_seq(Some(entries.len()))?;
+	for (key, value) in entries {
 		seq.serialize_element(&(key, value))?;
 	}
 	seq.end()
 }
 
+/// Serializes as sorted `{"key": value, ...}` (JSON object)
+pub fn serialize_hashmap_as_sorted_object<K, V, S, H>(hashmap: &HashMap<K, V, H>, serializer: S) -> Result<S::Ok, S::Error>
+where
+	K: Serialize + Eq + Hash + Ord,
+	V: Serialize,
+	S: Serializer,
+	H: BuildHasher,
+{
+	use serde::ser::SerializeMap;
+
+	let mut entries: Vec<_> = hashmap.iter().collect();
+	entries.sort_by(|a, b| a.0.cmp(b.0));
+
+	let mut map = serializer.serialize_map(Some(entries.len()))?;
+	for (key, value) in entries {
+		map.serialize_entry(key, value)?;
+	}
+	map.end()
+}
+
+/// Serializes as sorted `[value, ...]` (JSON array)
+pub fn serialize_hashset<T, S, H>(set: &HashSet<T, H>, serializer: S) -> Result<S::Ok, S::Error>
+where
+	T: Serialize + Eq + Hash + Ord,
+	S: Serializer,
+	H: BuildHasher,
+{
+	let mut entries: Vec<_> = set.iter().collect();
+	entries.sort();
+
+	let mut seq = serializer.serialize_seq(Some(entries.len()))?;
+	for value in entries {
+		seq.serialize_element(value)?;
+	}
+	seq.end()
+}
+
 pub fn deserialize_hashmap<'de, K, V, D, H>(deserializer: D) -> Result<HashMap<K, V, H>, D::Error>
 where
 	K: Deserialize<'de> + Eq + Hash,

node-graph/nodes/gstd/src/lib.rs

@@ -32,7 +32,7 @@ pub mod vector {
 	pub use vector_types::vector::click_target;
 	pub use vector_types::vector::misc::HandleId;
 	pub use vector_types::vector::{PointId, RegionId, SegmentId, StrokeId};
-	pub use vector_types::vector::{deserialize_hashmap, serialize_hashmap};
+	pub use vector_types::vector::{deserialize_hashmap, serialize_hashmap, serialize_hashmap_as_sorted_object};
 
 	// Re-export HandleExt trait and NoHashBuilder
 	pub use vector_types::vector::HandleExt;