Mark project as unmaintained

Forces the direction on the nodes internal port grid and on the ports themselves
to be always left-to-right (LTR), to avoid the UI becoming messed up when defaulting
to right-to-left (RTL).

Previously, when using RTL, the side of input and output ports would be swapped,
causing the port handles to be inside the node instead of at the edge.

Cargo.toml

@@ -15,7 +15,7 @@ categories = ["gui", "multimedia"]
 
 [dependencies]
 pipewire = "0.7.1"
-adw = { version = "0.5", package = "libadwaita", features = ["v1_3"] }
+adw = { version = "0.5", package = "libadwaita", features = ["v1_4"] }
 glib = { version = "0.18", features = ["log"] }
 
 log = "0.4.11"

README.md

@@ -1,5 +1,9 @@
 Helvum is a GTK-based patchbay for pipewire, inspired by the JACK tool [catia](https://kx.studio/Applications:Catia).
 
+> [!caution]
+> Helvum is currently not actively maintained.
+> If you are interested in maintaining the project, please see https://gitlab.freedesktop.org/pipewire/helvum/-/issues/137
+
 ![Screenshot](docs/screenshot.png)
 
 <a href="https://flathub.org/apps/details/org.pipewire.Helvum"><img src="https://flathub.org/assets/badges/flathub-badge-en.png" width="300"/></a>

meson.build

@@ -12,7 +12,7 @@ base_id = 'org.pipewire.Helvum'
 
 dependency('glib-2.0',     version: '>= 2.66')
 dependency('gtk4',         version: '>= 4.4.0')
-dependency('libadwaita-1', version: '>= 1.3')
+dependency('libadwaita-1', version: '>= 1.4')
 dependency('libpipewire-0.3')
 
 desktop_file_validate = find_program('desktop-file-validate', required: false)

src/application.rs

@@ -112,9 +112,12 @@ mod imp {
         }
 
         fn show_about_dialog(&self) {
+            let obj = &*self.obj();
+            let window = obj.active_window().unwrap();
             let authors: Vec<&str> = AUTHORS.split(':').collect();
 
             let about_window = adw::AboutWindow::builder()
+                .transient_for(&window)
                 .application_icon(APP_ID)
                 .application_name("Helvum")
                 .developer_name("Tom Wagner")

src/graph_manager.rs

@@ -59,6 +59,7 @@ mod imp {
                 move |msg| {
                     match msg {
                         PipewireMessage::NodeAdded { id, name, node_type } => imp.add_node(id, name.as_str(), node_type),
+                        PipewireMessage::NodeNameChanged { id, name, media_name } => imp.node_name_changed(id, &name, &media_name),
                         PipewireMessage::PortAdded { id, node_id, name, direction } => imp.add_port(id, name.as_str(), node_id, direction),
                         PipewireMessage::PortFormatChanged { id, media_type } => imp.port_media_type_changed(id, media_type),
                         PipewireMessage::LinkAdded {
@@ -95,6 +96,23 @@ mod imp {
             self.obj().graph().add_node(node, node_type);
         }
 
+        /// Update a node tooltip to the view.
+        fn node_name_changed(&self, id: u32, node_name: &str, media_name: &str) {
+            let items = self.items.borrow();
+
+            let Some(node) = items.get(&id) else {
+                log::warn!("Node (id: {id}) for changed name not found in graph manager");
+                return;
+            };
+            let Some(node) = node.dynamic_cast_ref::<graph::Node>() else {
+                log::warn!("Graph Manager item under node (id: {id}) is not a node");
+                return;
+            };
+
+            node.set_node_name(node_name);
+            node.set_media_name(media_name);
+        }
+
         /// Remove the node with the specified id from the view.
         fn remove_node(&self, id: u32) {
             log::info!("Removing node from graph: id {}", id);

src/main.rs

@@ -39,6 +39,11 @@ pub enum PipewireMessage {
         name: String,
         node_type: Option<NodeType>,
     },
+    NodeNameChanged {
+        id: u32,
+        name: String,
+        media_name: String,
+    },
     PortAdded {
         id: u32,
         node_id: u32,

src/pipewire_connection/mod.rs

@@ -26,7 +26,9 @@ use std::{
 use adw::glib::{self, clone};
 use log::{debug, error, info, warn};
 use pipewire::{
+    keys,
     link::{Link, LinkChangeMask, LinkInfo, LinkListener, LinkState},
+    node::{Node, NodeInfo, NodeListener},
     port::{Port, PortChangeMask, PortInfo, PortListener},
     prelude::*,
     properties,
@@ -43,6 +45,10 @@ use crate::{GtkMessage, MediaType, NodeType, PipewireMessage};
 use state::{Item, State};
 
 enum ProxyItem {
+    Node {
+        _proxy: Node,
+        _listener: NodeListener,
+    },
     Port {
         proxy: Port,
         _listener: PortListener,
@@ -65,7 +71,9 @@ pub(super) fn thread_main(
 
     while !is_stopped.get() {
         // Try to connect
-        let core = match context.connect(None) {
+        let core = match context.connect(Some(properties! {
+            "media.category" => "Manager"
+        })) {
             Ok(core) => Rc::new(core),
             Err(_) => {
                 if !is_connecting {
@@ -147,7 +155,7 @@ pub(super) fn thread_main(
             .add_listener_local()
             .global(clone!(@strong gtk_sender, @weak registry, @strong proxies, @strong state =>
                 move |global| match global.type_ {
-                    ObjectType::Node => handle_node(global, &gtk_sender, &state),
+                    ObjectType::Node => handle_node(global, &gtk_sender, &registry, &proxies, &state),
                     ObjectType::Port => handle_port(global, &gtk_sender, &registry, &proxies, &state),
                     ObjectType::Link => handle_link(global, &gtk_sender, &registry, &proxies, &state),
                     _ => {
@@ -178,10 +186,21 @@ pub(super) fn thread_main(
     }
 }
 
+/// Get the nicest possible name for the node, using a fallback chain of possible name attributes
+fn get_node_name(props: &ForeignDict) -> &str {
+    props
+        .get(&keys::NODE_DESCRIPTION)
+        .or_else(|| props.get(&keys::NODE_NICK))
+        .or_else(|| props.get(&keys::NODE_NAME))
+        .unwrap_or_default()
+}
+
 /// Handle a new node being added
 fn handle_node(
     node: &GlobalObject<ForeignDict>,
     sender: &glib::Sender<PipewireMessage>,
+    registry: &Rc<Registry>,
+    proxies: &Rc<RefCell<HashMap<u32, ProxyItem>>>,
     state: &Rc<RefCell<State>>,
 ) {
     let props = node
@@ -189,15 +208,7 @@ fn handle_node(
         .as_ref()
         .expect("Node object is missing properties");
 
-    // Get the nicest possible name for the node, using a fallback chain of possible name attributes.
-    let name = String::from(
-        props
-            .get("node.description")
-            .or_else(|| props.get("node.nick"))
-            .or_else(|| props.get("node.name"))
-            .unwrap_or_default(),
-    );
-
+    let name = get_node_name(props).to_string();
     let media_class = |class: &str| {
         if class.contains("Sink") || class.contains("Input") {
             Some(NodeType::Input)
@@ -228,6 +239,50 @@ fn handle_node(
             node_type,
         })
         .expect("Failed to send message");
+
+    let proxy: Node = registry.bind(node).expect("Failed to bind to node proxy");
+    let listener = proxy
+        .add_listener_local()
+        .info(clone!(@strong sender, @strong proxies => move |info| {
+            handle_node_info(info, &sender, &proxies);
+        }))
+        .register();
+
+    proxies.borrow_mut().insert(
+        node.id,
+        ProxyItem::Node {
+            _proxy: proxy,
+            _listener: listener,
+        },
+    );
+}
+
+fn handle_node_info(
+    info: &NodeInfo,
+    sender: &glib::Sender<PipewireMessage>,
+    proxies: &Rc<RefCell<HashMap<u32, ProxyItem>>>,
+) {
+    debug!("Received node info: {:?}", info);
+
+    let id = info.id();
+    let proxies = proxies.borrow();
+    let Some(ProxyItem::Node { .. }) = proxies.get(&id) else {
+        error!("Received info on unknown node with id {id}");
+        return;
+    };
+
+    let props = info.props().expect("NodeInfo object is missing properties");
+    if let Some(media_name) = props.get(&keys::MEDIA_NAME) {
+        let name = get_node_name(props).to_string();
+
+        sender
+            .send(PipewireMessage::NodeNameChanged {
+                id,
+                name,
+                media_name: media_name.to_string(),
+            })
+            .expect("Failed to send message");
+    }
 }
 
 /// Handle a new port being added

src/style.css

@@ -41,7 +41,7 @@ node {
 	background-color: @headerbar_bg_color;
 }
 
-node label.heading {
+node .node-title {
 	padding: 4px 7px;
 }
 
@@ -53,3 +53,20 @@ port-handle {
     border-radius: 50%;
     background-color: @media-type-unknown;
 }
+
+button.rounded {
+    padding: 6px;
+    border-radius: 9999px;
+}
+
+entry.rounded {
+    border-radius: 9999px;
+}
+
+entry.rounded > :first-child {
+    padding-left: 12px;
+}
+
+entry.rounded > :nth-child(2) {
+    padding-right: 12px;
+}

src/ui/graph/graph_view.rs

@@ -93,6 +93,9 @@ mod imp {
         // Memorized data for an in-progress zoom gesture
         pub zoom_gesture_initial_zoom: Cell<Option<f64>>,
         pub zoom_gesture_anchor: Cell<Option<(f64, f64)>>,
+
+        // This keeps track of an ongoing move view gesture.
+        pub move_view_state: Cell<(f64, f64)>,
     }
 
     impl Default for GraphView {
@@ -108,6 +111,7 @@ mod imp {
                 port_drag_cursor: Cell::new(Point::new(0.0, 0.0)),
                 zoom_gesture_initial_zoom: Default::default(),
                 zoom_gesture_anchor: Default::default(),
+                move_view_state: Default::default(),
             }
         }
     }
@@ -136,6 +140,7 @@ mod imp {
             self.setup_port_drag_and_drop();
             self.setup_scroll_zooming();
             self.setup_zoom_gesture();
+            self.setup_move_view();
         }
 
         fn dispose(&self) {
@@ -465,6 +470,48 @@ mod imp {
             self.obj().add_controller(zoom_gesture);
         }
 
+        fn setup_move_view(&self) {
+            let drag_controller = gtk::GestureDrag::new();
+
+            drag_controller.set_button(gtk::gdk::BUTTON_MIDDLE);
+
+            // TODO: set `all-scroll` cursor while dragging view
+
+            drag_controller.connect_drag_begin(|drag_controller, _, _| {
+                let widget = drag_controller
+                    .widget()
+                    .downcast::<super::GraphView>()
+                    .unwrap();
+
+                widget.imp().move_view_state.set((0.0, 0.0));
+            });
+
+            drag_controller.connect_drag_update(|drag_controller, x, y| {
+                let widget = drag_controller
+                    .widget()
+                    .downcast::<super::GraphView>()
+                    .unwrap();
+
+                let imp = widget.imp();
+                let state = imp.move_view_state.replace((x, y));
+                let delta_x = state.0 - x;
+                let delta_y = state.1 - y;
+
+                let hadjustment_ref = imp.hadjustment.borrow();
+                let vadjustment_ref = imp.vadjustment.borrow();
+                let hadjustment = hadjustment_ref.as_ref().unwrap();
+                let vadjustment = vadjustment_ref.as_ref().unwrap();
+
+                let new_hadjustment = hadjustment.value() + delta_x;
+                let new_vadjustment = vadjustment.value() + delta_y;
+
+                hadjustment.set_value(new_hadjustment);
+                vadjustment.set_value(new_vadjustment);
+            });
+
+            self.obj().add_controller(drag_controller);
+        }
+
         fn draw_link(
             &self,
             link_cr: &cairo::Context,

src/ui/graph/node.rs

@@ -34,15 +34,26 @@ mod imp {
         #[property(get, set, construct_only)]
         pub(super) pipewire_id: Cell<u32>,
         #[property(
-            name = "name", type = String,
-            get = |this: &Self| this.label.text().to_string(),
+            name = "node-name", type = String,
+            get = |this: &Self| this.node_name.text().to_string(),
             set = |this: &Self, val| {
-                this.label.set_text(val);
-                this.label.set_tooltip_text(Some(val));
+                this.node_name.set_text(val);
+                this.node_name.set_tooltip_text(Some(val));
             }
         )]
         #[template_child]
-        pub(super) label: TemplateChild<gtk::Label>,
+        pub(super) node_name: TemplateChild<gtk::Label>,
+        #[property(
+            name = "media-name", type = String,
+            get = |this: &Self| this.media_name.text().to_string(),
+            set = |this: &Self, val| {
+                this.media_name.set_text(val);
+                this.media_name.set_tooltip_text(Some(val));
+                this.media_name.set_visible(!val.is_empty());
+            }
+        )]
+        #[template_child]
+        pub(super) media_name: TemplateChild<gtk::Label>,
         #[template_child]
         pub(super) separator: TemplateChild<gtk::Separator>,
         #[template_child]
@@ -74,8 +85,11 @@ mod imp {
         fn constructed(&self) {
             self.parent_constructed();
 
+            // Force left-to-right direction for the ports grid to avoid messed up UI when defaulting to right-to-left
+            self.port_grid.set_direction(gtk::TextDirection::Ltr);
+
             // Display a grab cursor when the mouse is over the label so the user knows the node can be dragged.
-            self.label
+            self.node_name
                 .set_cursor(gtk::gdk::Cursor::from_name("grab", None).as_ref());
         }
 
@@ -141,7 +155,7 @@ glib::wrapper! {
 impl Node {
     pub fn new(name: &str, pipewire_id: u32) -> Self {
         glib::Object::builder()
-            .property("name", name)
+            .property("node-name", name)
             .property("pipewire-id", pipewire_id)
             .build()
     }

src/ui/graph/node.ui

@@ -9,14 +9,36 @@
       <object class="GtkBox">
         <property name="orientation">vertical</property>
         <child>
-          <object class="GtkLabel" id="label">
+          <object class="GtkBox">
             <style>
-              <class name="heading"></class>
+              <class name="node-title"></class>
             </style>
-            <property name="wrap">true</property>
-            <property name="ellipsize">PANGO_ELLIPSIZE_END</property>
-            <property name="lines">2</property>
-            <property name="max-width-chars">20</property>
+            <property name="orientation">vertical</property>
+            <property name="spacing">1</property>
+            <child>
+              <object class="GtkLabel" id="node_name">
+                <style>
+                  <class name="heading"></class>
+                </style>
+                <property name="wrap">true</property>
+                <property name="ellipsize">PANGO_ELLIPSIZE_END</property>
+                <property name="lines">2</property>
+                <property name="max-width-chars">20</property>
+              </object>
+            </child>
+            <child>
+              <object class="GtkLabel" id="media_name">
+                <style>
+                  <class name="dim-label"></class>
+                  <class name="caption"></class>
+                </style>
+                <property name="visible">false</property>
+                <property name="wrap">true</property>
+                <property name="ellipsize">PANGO_ELLIPSIZE_END</property>
+                <property name="lines">2</property>
+                <property name="max-width-chars">20</property>
+              </object>
+            </child>
           </object>
         </child>
         <child>

src/ui/graph/port.rs

@@ -101,6 +101,9 @@ mod imp {
         fn constructed(&self) {
             self.parent_constructed();
 
+            // Force left-to-right direction for the ports grid to avoid messed up UI when defaulting to right-to-left
+            self.obj().set_direction(gtk::TextDirection::Ltr);
+
             // Display a grab cursor when the mouse is over the port so the user knows it can be dragged to another port.
             self.obj()
                 .set_cursor(gtk::gdk::Cursor::from_name("grab", None).as_ref());

src/ui/graph/zoomentry.rs

@@ -34,6 +34,7 @@ mod imp {
             menu.append(Some("200%"), Some("win.set-zoom(2.0)"));
             menu.append(Some("300%"), Some("win.set-zoom(3.0)"));
             let popover = gtk::PopoverMenu::from_model(Some(&menu));
+            popover.set_position(gtk::PositionType::Top);
 
             ZoomEntry {
                 graphview: Default::default(),

src/ui/graph/zoomentry.ui

@@ -1,26 +1,37 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <interface>
   <template class="HelvumZoomEntry" parent="GtkBox">
-    <child>
-      <object class="GtkButton" id="zoom_out_button">
-        <property name="icon-name">zoom-out-symbolic</property>
-        <property name="tooltip-text">Zoom out</property>
-      </object>
-    </child>
+    <property name="spacing">12</property>
     <child>
       <object class="GtkEntry" id="entry">
         <property name="secondary-icon-name">go-down-symbolic</property>
         <property name="input-purpose">digits</property>
+        <property name="max-width-chars">5</property>
+        <style>
+          <class name="osd"/>
+          <class name="rounded"/>
+        </style>
+      </object>
+    </child>
+    <child>
+      <object class="GtkButton" id="zoom_out_button">
+        <property name="icon-name">zoom-out-symbolic</property>
+        <property name="tooltip-text">Zoom out</property>
+        <style>
+          <class name="osd"/>
+          <class name="rounded"/>
+        </style>
       </object>
     </child>
     <child>
       <object class="GtkButton" id="zoom_in_button">
         <property name="icon-name">zoom-in-symbolic</property>
         <property name="tooltip-text">Zoom in</property>
+        <style>
+          <class name="osd"/>
+          <class name="rounded"/>
+        </style>
       </object>
     </child>
-    <style>
-      <class name="linked"/>
-    </style>
   </template>
-</interface>
+</interface>

src/ui/window.ui

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <interface>
   <requires lib="gtk" version="4.0"/>
-  <requires lib="Adw" version="1.0"/>
+  <requires lib="Adw" version="1.4"/>
   <menu id="primary_menu">
     <section>
       <item>
@@ -15,44 +15,51 @@
     <property name="default-height">720</property>
     <property name="title">Helvum - Pipewire Patchbay</property>
     <child>
-      <object class="GtkBox">
-        <property name="orientation">vertical</property>
-        <child>
+      <object class="AdwToolbarView">
+        <child type="top">
           <object class="AdwHeaderBar" id="header_bar">
             <child type="end">
-              <object class="GtkBox">
-                <property name="spacing">6</property>
+              <object class="GtkMenuButton">
+                <property name="icon-name">open-menu-symbolic</property>
+                <property name="menu-model">primary_menu</property>
+              </object>
+            </child>
+          </object>
+        </child>
+        <property name="content">
+          <object class="GtkBox">
+            <property name="orientation">vertical</property>
+            <child>
+              <object class="AdwBanner" id="connection_banner">
+                <property name="title" translatable="yes">Disconnected</property>
+                <property name="revealed">false</property>
+              </object>
+            </child>
+            <child>
+              <object class="GtkOverlay">
                 <child>
+                  <object class="GtkScrolledWindow">
+                    <child>
+                      <object class="HelvumGraphView" id="graph">
+                        <property name="hexpand">true</property>
+                        <property name="vexpand">true</property>
+                      </object>
+                    </child>
+                  </object>
+                </child>
+                <child type="overlay">
                   <object class="HelvumZoomEntry">
                     <property name="zoomed-widget">graph</property>
-                  </object>
-                </child>
-                <child>
-                  <object class="GtkMenuButton">
-                    <property name="icon-name">open-menu-symbolic</property>
-                    <property name="menu-model">primary_menu</property>
+                    <property name="halign">end</property>
+                    <property name="valign">end</property>
+                    <property name="margin-end">24</property>
+                    <property name="margin-bottom">24</property>
                   </object>
                 </child>
               </object>
             </child>
           </object>
-        </child>
-        <child>
-          <object class="AdwBanner" id="connection_banner">
-            <property name="title" translatable="yes">Disconnected</property>
-            <property name="revealed">false</property>
-          </object>
-        </child>
-        <child>
-          <object class="GtkScrolledWindow">
-            <child>
-              <object class="HelvumGraphView" id="graph">
-                <property name="hexpand">true</property>
-                <property name="vexpand">true</property>
-              </object>
-            </child>
-          </object>
-        </child>
+        </property>
       </object>
     </child>
   </template>