fix icon build

* fix: nix evaluation warning

* nix: minor flake improvements/maintenance

* nix: fix macos build errors

* nix: minor cleanup/fixes

* nix: remove redundant deps

* nix: remove reliance on systems input

.github/workflows/cachix.yml

@@ -1,40 +1,46 @@
-name: Binary Cache
+name: Nix Binary Cache
+
+on:
+  push:
+    branches: ["main"]
+  pull_request:
+    branches: ["main"]
+  workflow_dispatch:
 
-on: [push, pull_request, workflow_dispatch]
 jobs:
   nix:
     strategy:
       matrix:
-       os: 
+        os:
-        - ubuntu-latest
+          - ubuntu-latest
-        - macos-15-intel
+          - macos-15-intel
-        - macos-14
+          - macos-latest
     name: "Build"
     runs-on: ${{ matrix.os }}
     steps:
-    - name: Checkout
+      - name: Checkout
-      uses: actions/checkout@v4
+        uses: actions/checkout@v4
-      with:
+        with:
-        submodules: recursive
+          submodules: recursive
 
-    - uses: DeterminateSystems/nix-installer-action@main
+      # - uses: DeterminateSystems/nix-installer-action@main
-      with:
+      #   with:
-        logger: pretty
+      #     logger: pretty
-    - uses: DeterminateSystems/magic-nix-cache-action@main
+      # - uses: DeterminateSystems/magic-nix-cache-action@main
-    - uses: cachix/cachix-action@v14
+      - uses: cachix/install-nix-action@v31
-      with:
+      - uses: cachix/cachix-action@v16
-        name: lan-mouse
+        with:
-        authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
+          name: lan-mouse
+          authToken: "${{ secrets.CACHIX_AUTH_TOKEN }}"
 
-    - name: Build lan-mouse (x86_64-linux)
+      - name: Build lan-mouse (x86_64-linux)
-      if: matrix.os == 'ubuntu-latest'
+        if: matrix.os == 'ubuntu-latest'
-      run: nix build --print-build-logs --show-trace .#packages.x86_64-linux.lan-mouse
+        run: nix build --print-build-logs --show-trace .#packages.x86_64-linux.lan-mouse
 
-    - name: Build lan-mouse (x86_64-darwin)
+      - name: Build lan-mouse (x86_64-darwin)
-      if: matrix.os == 'macos-15-intel'
+        if: matrix.os == 'macos-15-intel'
-      run: nix build --print-build-logs --show-trace .#packages.x86_64-darwin.lan-mouse
+        run: nix build --print-build-logs --show-trace .#packages.x86_64-darwin.lan-mouse
-
-    - name: Build lan-mouse (aarch64-darwin)
-      if: matrix.os == 'macos-14'
-      run: nix build --print-build-logs --show-trace .#packages.aarch64-darwin.lan-mouse
 
+      - name: Build lan-mouse (aarch64-darwin)
+        if: matrix.os == 'macos-latest'
+        run: nix build --print-build-logs --show-trace .#packages.aarch64-darwin.lan-mouse

.github/workflows/pre-release.yml

@@ -84,7 +84,7 @@ jobs:
     steps:
     - uses: actions/checkout@v4
     - name: install dependencies
-      run: brew install gtk4 libadwaita imagemagick
+      run: brew install gtk4 libadwaita imagemagick librsvg
     - name: Release Build
       run: |
         cargo build --release
@@ -112,7 +112,7 @@ jobs:
     steps:
     - uses: actions/checkout@v4
     - name: install dependencies
-      run: brew install gtk4 libadwaita imagemagick
+      run: brew install gtk4 libadwaita imagemagick librsvg
     - name: Release Build
       run: |
         cargo build --release

.github/workflows/rust.yml

@@ -76,7 +76,7 @@ jobs:
           gvsbuild build --msys-dir=C:\msys64 gtk4 libadwaita librsvg
       - name: cargo build
         if: matrix.job == 'build'
-        run: cargo check --workspace --all-targets --all-features
+        run: cargo build
 
       - name: cargo check
         if: matrix.job == 'check'

.github/workflows/tagged-release.yml

@@ -80,7 +80,7 @@ jobs:
     steps:
     - uses: actions/checkout@v4
     - name: install dependencies
-      run: brew install gtk4 libadwaita imagemagick
+      run: brew install gtk4 libadwaita imagemagick librsvg
     - name: Release Build
       run: |
         cargo build --release
@@ -108,7 +108,7 @@ jobs:
     steps:
     - uses: actions/checkout@v4
     - name: install dependencies
-      run: brew install gtk4 libadwaita imagemagick
+      run: brew install gtk4 libadwaita imagemagick librsvg
     - name: Release Build
       run: |
         cargo build --release

flake.lock

@@ -2,11 +2,11 @@
   "nodes": {
     "nixpkgs": {
       "locked": {
-        "lastModified": 1752687322,
+        "lastModified": 1772963539,
-        "narHash": "sha256-RKwfXA4OZROjBTQAl9WOZQFm7L8Bo93FQwSJpAiSRvo=",
+        "narHash": "sha256-9jVDGZnvCckTGdYT53d/EfznygLskyLQXYwJLKMPsZs=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "6e987485eb2c77e5dcc5af4e3c70843711ef9251",
+        "rev": "9dcb002ca1690658be4a04645215baea8b95f31d",
         "type": "github"
       },
       "original": {
@@ -29,11 +29,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1752806774,
+        "lastModified": 1773025773,
-        "narHash": "sha256-4cHeoR2roN7d/3J6gT+l6o7J2hTrBIUiCwVdDNMeXzE=",
+        "narHash": "sha256-Wik8+xApNfldpUFjPmJkPdg0RrvUPSWGIZis+A/0N1w=",
         "owner": "oxalica",
         "repo": "rust-overlay",
-        "rev": "3c90219b3ba1c9790c45a078eae121de48a39c55",
+        "rev": "3c06fdbbd36ff60386a1e590ee0cd52dcd1892bf",
         "type": "github"
       },
       "original": {

flake.nix

@@ -7,60 +7,87 @@
       inputs.nixpkgs.follows = "nixpkgs";
     };
   };
-  outputs = {
+  outputs =
-    self,
+    {
-    nixpkgs,
+      nixpkgs,
-    rust-overlay,
+      rust-overlay,
-    ...
+      self,
-  }: let
+      ...
-    inherit (nixpkgs) lib;
+    }:
-    genSystems = lib.genAttrs [
+    let
-      "aarch64-darwin"
+      inherit (nixpkgs) lib;
-      "aarch64-linux"
+      forEachPkgs =
-      "x86_64-darwin"
+        f:
-      "x86_64-linux"
+        lib.genAttrs
-    ];
+          [
-    pkgsFor = system:
+            "aarch64-darwin"
-      import nixpkgs {
+            "aarch64-linux"
-        inherit system;
+            "x86_64-darwin"
-
+            "x86_64-linux"
-        overlays = [
+          ]
-          rust-overlay.overlays.default
+          (
-        ];
+            system:
-      };
+            let
-    mkRustToolchain = pkgs:
+              pkgs = import nixpkgs {
-      pkgs.rust-bin.stable.latest.default.override {
+                inherit system;
-        extensions = ["rust-src"];
+                overlays = [ rust-overlay.overlays.default ];
-      };
+              };
-    pkgs = genSystems (system: import nixpkgs {inherit system;});
+              # Default toolchain for devshell
-  in {
+              rustToolchain = pkgs.rust-bin.stable.latest.default.override {
-    packages = genSystems (system: rec {
+                extensions = [
-      default = pkgs.${system}.callPackage ./nix {};
+                  # includes already:
-      lan-mouse = default;
+                  # rustc
-    });
+                  # cargo
-    homeManagerModules.default = import ./nix/hm-module.nix self;
+                  # rust-std
-    devShells = genSystems (system: let
+                  # rust-docs
-      pkgs = pkgsFor system;
+                  # rustfmt-preview
-      rust = mkRustToolchain pkgs;
+                  # clippy-preview
-    in {
+                  "rust-analyzer"
-      default = pkgs.mkShell {
+                  "rust-src"
-        packages = with pkgs; [
+                ];
-          rust
+              };
-          rust-analyzer-unwrapped
+              # Minimal toolchain for builds (rustc + cargo + rust-std only)
-          pkg-config
+              rustToolchainForBuild = pkgs.rust-bin.stable.latest.minimal;
-          xorg.libX11
+            in
-          gtk4
+            f { inherit pkgs rustToolchain rustToolchainForBuild; }
-          libadwaita
+          );
-          librsvg
+    in
-          xorg.libXtst
+    {
-        ] ++ lib.optionals stdenv.isDarwin
+      packages = forEachPkgs (
-        (with darwin.apple_sdk_11_0.frameworks; [
+        { pkgs, rustToolchainForBuild, ... }:
-          CoreGraphics
+        let
-          ApplicationServices
+          customRustPlatform = pkgs.makeRustPlatform {
-        ]);
+            cargo = rustToolchainForBuild;
-
+            rustc = rustToolchainForBuild;
-        RUST_SRC_PATH = "${rust}/lib/rustlib/src/rust/library";
+          };
-      };
+          lan-mouse = pkgs.callPackage ./nix { rustPlatform = customRustPlatform; };
-    });
+        in
-  };
+        {
+          default = lan-mouse;
+          inherit lan-mouse;
+        }
+      );
+      devShells = forEachPkgs (
+        { pkgs, rustToolchain, ... }:
+        {
+          default = pkgs.mkShell {
+            packages =
+              with pkgs;
+              [
+                rustToolchain
+                pkg-config
+                gtk4
+                libadwaita
+                librsvg
+              ]
+              ++ lib.optionals pkgs.stdenv.isLinux [
+                libX11
+                libXtst
+              ];
+            env.RUST_SRC_PATH = "${rustToolchain}/lib/rustlib/src/rust/library";
+          };
+        }
+      );
+      homeManagerModules.default = import ./nix/hm-module.nix self;
+    };
 }

input-capture/src/macos.rs

@@ -18,7 +18,9 @@ use core_graphics::{
     event_source::{CGEventSource, CGEventSourceStateID},
 };
 use futures_core::Stream;
-use input_event::{BTN_LEFT, BTN_MIDDLE, BTN_RIGHT, Event, KeyboardEvent, PointerEvent};
+use input_event::{
+    BTN_BACK, BTN_FORWARD, BTN_LEFT, BTN_MIDDLE, BTN_RIGHT, Event, KeyboardEvent, PointerEvent,
+};
 use keycode::{KeyMap, KeyMapping};
 use libc::c_void;
 use once_cell::unsync::Lazy;
@@ -304,16 +306,28 @@ fn get_events(
             })))
         }
         CGEventType::OtherMouseDown => {
+            let btn_num = ev.get_integer_value_field(EventField::MOUSE_EVENT_BUTTON_NUMBER);
+            let button = match btn_num {
+                3 => BTN_BACK,
+                4 => BTN_FORWARD,
+                _ => BTN_MIDDLE,
+            };
             result.push(CaptureEvent::Input(Event::Pointer(PointerEvent::Button {
                 time: 0,
-                button: BTN_MIDDLE,
+                button,
                 state: 1,
             })))
         }
         CGEventType::OtherMouseUp => {
+            let btn_num = ev.get_integer_value_field(EventField::MOUSE_EVENT_BUTTON_NUMBER);
+            let button = match btn_num {
+                3 => BTN_BACK,
+                4 => BTN_FORWARD,
+                _ => BTN_MIDDLE,
+            };
             result.push(CaptureEvent::Input(Event::Pointer(PointerEvent::Button {
                 time: 0,
-                button: BTN_MIDDLE,
+                button,
                 state: 0,
             })))
         }

input-emulation/src/macos.rs

@@ -10,10 +10,13 @@ use core_graphics::event::{
     ScrollEventUnit,
 };
 use core_graphics::event_source::{CGEventSource, CGEventSourceStateID};
-use input_event::{BTN_LEFT, BTN_MIDDLE, BTN_RIGHT, Event, KeyboardEvent, PointerEvent, scancode};
+use input_event::{
+    BTN_BACK, BTN_FORWARD, BTN_LEFT, BTN_MIDDLE, BTN_RIGHT, Event, KeyboardEvent, PointerEvent,
+    scancode,
+};
 use keycode::{KeyMap, KeyMapping};
 use std::cell::Cell;
-use std::ops::{Index, IndexMut};
+use std::collections::HashSet;
 use std::rc::Rc;
 use std::sync::Arc;
 use std::time::{Duration, Instant};
@@ -30,10 +33,10 @@ pub(crate) struct MacOSEmulation {
     event_source: CGEventSource,
     /// task handle for key repeats
     repeat_task: Option<JoinHandle<()>>,
-    /// current state of the mouse buttons
+    /// current state of the mouse buttons (tracked by evdev button code)
-    button_state: ButtonState,
+    pressed_buttons: HashSet<u32>,
-    /// button previously pressed
+    /// button previously pressed (evdev button code)
-    previous_button: Option<CGMouseButton>,
+    previous_button: Option<u32>,
     /// timestamp of previous click (button down)
     previous_button_click: Option<Instant>,
     /// click state, i.e. number of clicks in quick succession
@@ -44,31 +47,13 @@ pub(crate) struct MacOSEmulation {
     notify_repeat_task: Arc<Notify>,
 }
 
-struct ButtonState {
+/// Maps an evdev button code to the CGEventType used for drag events.
-    left: bool,
+fn drag_event_type(button: u32) -> CGEventType {
-    right: bool,
+    match button {
-    center: bool,
+        BTN_LEFT => CGEventType::LeftMouseDragged,
-}
+        BTN_RIGHT => CGEventType::RightMouseDragged,
-
+        // middle, back, forward, and any other button all use OtherMouseDragged
-impl Index<CGMouseButton> for ButtonState {
+        _ => CGEventType::OtherMouseDragged,
-    type Output = bool;
-
-    fn index(&self, index: CGMouseButton) -> &Self::Output {
-        match index {
-            CGMouseButton::Left => &self.left,
-            CGMouseButton::Right => &self.right,
-            CGMouseButton::Center => &self.center,
-        }
-    }
-}
-
-impl IndexMut<CGMouseButton> for ButtonState {
-    fn index_mut(&mut self, index: CGMouseButton) -> &mut Self::Output {
-        match index {
-            CGMouseButton::Left => &mut self.left,
-            CGMouseButton::Right => &mut self.right,
-            CGMouseButton::Center => &mut self.center,
-        }
     }
 }
 
@@ -78,14 +63,9 @@ impl MacOSEmulation {
     pub(crate) fn new() -> Result<Self, MacOSEmulationCreationError> {
         let event_source = CGEventSource::new(CGEventSourceStateID::CombinedSessionState)
             .map_err(|_| MacOSEmulationCreationError::EventSourceCreation)?;
-        let button_state = ButtonState {
-            left: false,
-            right: false,
-            center: false,
-        };
         Ok(Self {
             event_source,
-            button_state,
+            pressed_buttons: HashSet::new(),
             previous_button: None,
             previous_button_click: None,
             button_click_state: 0,
@@ -261,14 +241,14 @@ impl Emulation for MacOSEmulation {
                         mouse_location.x = new_mouse_x;
                         mouse_location.y = new_mouse_y;
 
-                        let mut event_type = CGEventType::MouseMoved;
+                        // If any button is held, emit a drag event for it;
-                        if self.button_state.left {
+                        // otherwise emit a normal mouse-moved event.
-                            event_type = CGEventType::LeftMouseDragged
+                        let event_type = self
-                        } else if self.button_state.right {
+                            .pressed_buttons
-                            event_type = CGEventType::RightMouseDragged
+                            .iter()
-                        } else if self.button_state.center {
+                            .next()
-                            event_type = CGEventType::OtherMouseDragged
+                            .map(|&btn| drag_event_type(btn))
-                        };
+                            .unwrap_or(CGEventType::MouseMoved);
                         let event = match CGEvent::new_mouse_event(
                             self.event_source.clone(),
                             event_type,
@@ -290,6 +270,12 @@ impl Emulation for MacOSEmulation {
                         button,
                         state,
                     } => {
+                        // button number for OtherMouse events (3 = back, 4 = forward, etc.)
+                        let cg_button_number: Option<i64> = match button {
+                            BTN_BACK => Some(3),
+                            BTN_FORWARD => Some(4),
+                            _ => None,
+                        };
                         let (event_type, mouse_button) = match (button, state) {
                             (BTN_LEFT, 1) => (CGEventType::LeftMouseDown, CGMouseButton::Left),
                             (BTN_LEFT, 0) => (CGEventType::LeftMouseUp, CGMouseButton::Left),
@@ -297,17 +283,29 @@ impl Emulation for MacOSEmulation {
                             (BTN_RIGHT, 0) => (CGEventType::RightMouseUp, CGMouseButton::Right),
                             (BTN_MIDDLE, 1) => (CGEventType::OtherMouseDown, CGMouseButton::Center),
                             (BTN_MIDDLE, 0) => (CGEventType::OtherMouseUp, CGMouseButton::Center),
+                            (BTN_BACK, 1) | (BTN_FORWARD, 1) => {
+                                (CGEventType::OtherMouseDown, CGMouseButton::Center)
+                            }
+                            (BTN_BACK, 0) | (BTN_FORWARD, 0) => {
+                                (CGEventType::OtherMouseUp, CGMouseButton::Center)
+                            }
                             _ => {
                                 log::warn!("invalid button event: {button},{state}");
                                 return Ok(());
                             }
                         };
-                        // store button state
+                        // store button state using the evdev button code so
-                        self.button_state[mouse_button] = state == 1;
+                        // back, forward, and middle are tracked independently
-
-                        // update previous button state
                         if state == 1 {
-                            if self.previous_button.is_some_and(|b| b.eq(&mouse_button))
+                            self.pressed_buttons.insert(button);
+                        } else {
+                            self.pressed_buttons.remove(&button);
+                        }
+
+                        // update double-click tracking using the evdev button
+                        // code so that back/forward don't alias with middle
+                        if state == 1 {
+                            if self.previous_button == Some(button)
                                 && self
                                     .previous_button_click
                                     .is_some_and(|i| i.elapsed() < DOUBLE_CLICK_INTERVAL)
@@ -316,7 +314,7 @@ impl Emulation for MacOSEmulation {
                             } else {
                                 self.button_click_state = 1;
                             }
-                            self.previous_button = Some(mouse_button);
+                            self.previous_button = Some(button);
                             self.previous_button_click = Some(Instant::now());
                         }
 
@@ -338,6 +336,13 @@ impl Emulation for MacOSEmulation {
                             EventField::MOUSE_EVENT_CLICK_STATE,
                             self.button_click_state,
                         );
+                        // Set the button number for extra buttons (back=3, forward=4)
+                        if let Some(btn_num) = cg_button_number {
+                            event.set_integer_value_field(
+                                EventField::MOUSE_EVENT_BUTTON_NUMBER,
+                                btn_num,
+                            );
+                        }
                         event.post(CGEventTapLocation::HID);
                     }
                     PointerEvent::Axis {
@@ -416,7 +421,10 @@ impl Emulation for MacOSEmulation {
                             return Ok(());
                         }
                     };
-                    update_modifiers(&self.modifier_state, key, state);
+                    let is_modifier = update_modifiers(&self.modifier_state, key, state);
+                    if is_modifier {
+                        modifier_event(self.event_source.clone(), self.modifier_state.get());
+                    }
                     match state {
                         // pressed
                         1 => self.spawn_repeat_task(code).await,
@@ -445,21 +453,6 @@ impl Emulation for MacOSEmulation {
     async fn terminate(&mut self) {}
 }
 
-trait ButtonEq {
-    fn eq(&self, other: &Self) -> bool;
-}
-
-impl ButtonEq for CGMouseButton {
-    fn eq(&self, other: &Self) -> bool {
-        matches!(
-            (self, other),
-            (CGMouseButton::Left, CGMouseButton::Left)
-                | (CGMouseButton::Right, CGMouseButton::Right)
-                | (CGMouseButton::Center, CGMouseButton::Center)
-        )
-    }
-}
-
 fn update_modifiers(modifiers: &Cell<XMods>, key: u32, state: u8) -> bool {
     if let Ok(key) = scancode::Linux::try_from(key) {
         let mask = match key {

nix/default.nix

@@ -1,34 +1,40 @@
 {
+  stdenv,
   rustPlatform,
   lib,
-  pkgs,
+  pkg-config,
-}: let
+  libX11,
-  cargoToml = builtins.fromTOML (builtins.readFile ../Cargo.toml);
+  gtk4,
+  libadwaita,
+  libXtst,
+  wrapGAppsHook4,
+  librsvg,
+  git,
+}:
+let
+  cargoToml = fromTOML (builtins.readFile ../Cargo.toml);
   pname = cargoToml.package.name;
   version = cargoToml.package.version;
 in
 rustPlatform.buildRustPackage {
-  pname = pname;
+  inherit pname;
-  version = version;
+  inherit version;
 
-  nativeBuildInputs = with pkgs; [
+  nativeBuildInputs = [
-    git
     pkg-config
-    cmake
+    wrapGAppsHook4
-    makeWrapper
+    git
-    buildPackages.gtk4
   ];
 
-  buildInputs = with pkgs; [
+  buildInputs = [
-    xorg.libX11
     gtk4
     libadwaita
-    xorg.libXtst
+    librsvg
-  ] ++ lib.optionals stdenv.isDarwin
+  ]
-  (with darwin.apple_sdk_11_0.frameworks; [
+  ++ lib.optionals stdenv.isLinux [
-    CoreGraphics
+    libX11
-    ApplicationServices
+    libXtst
-  ]);
+  ];
 
   src = builtins.path {
     name = pname;
@@ -40,11 +46,7 @@ rustPlatform.buildRustPackage {
   # Set Environment Variables
   RUST_BACKTRACE = "full";
 
-  # Needed to enable support for SVG icons in GTK
   postInstall = ''
-    wrapProgram "$out/bin/lan-mouse" \
-      --set GDK_PIXBUF_MODULE_FILE ${pkgs.librsvg.out}/lib/gdk-pixbuf-2.0/2.10.0/loaders.cache
-
     install -Dm444 *.desktop -t $out/share/applications
     install -Dm444 lan-mouse-gtk/resources/*.svg -t $out/share/icons/hicolor/scalable/apps
   '';

scripts/makeicns.sh

@@ -29,13 +29,13 @@ iconset="${3:-./target/icon.iconset}"
 set -u
 
 mkdir -p "$iconset"
-magick convert -background none -resize 1024x1024 "$svg" "$iconset"/icon_512x512@2x.png
+magick "$svg" -background none -resize 1024x1024 "$iconset"/icon_512x512@2x.png
-magick convert -background none -resize 512x512 "$svg" "$iconset"/icon_512x512.png
+magick "$svg" -background none -resize 512x512 "$iconset"/icon_512x512.png
-magick convert -background none -resize 256x256 "$svg" "$iconset"/icon_256x256.png
+magick "$svg" -background none -resize 256x256 "$iconset"/icon_256x256.png
-magick convert -background none -resize 128x128 "$svg" "$iconset"/icon_128x128.png
+magick "$svg" -background none -resize 128x128 "$iconset"/icon_128x128.png
-magick convert -background none -resize 64x64 "$svg" "$iconset"/icon_32x32@2x.png
+magick "$svg" -background none -resize 64x64 "$iconset"/icon_32x32@2x.png
-magick convert -background none -resize 32x32 "$svg" "$iconset"/icon_32x32.png
+magick "$svg" -background none -resize 32x32 "$iconset"/icon_32x32.png
-magick convert -background none -resize 16x16 "$svg" "$iconset"/icon_16x16.png
+magick "$svg" -background none -resize 16x16 "$iconset"/icon_16x16.png
 cp "$iconset"/icon_512x512.png "$iconset"/icon_256x256@2x.png
 cp "$iconset"/icon_256x256.png "$iconset"/icon_128x128@2x.png
 cp "$iconset"/icon_32x32.png "$iconset"/icon_16x16@2x.png