chore: format Cargo.toml

this should improve efficiency

this is also largely motivated by all the `path.clone()` calls in view,
which concern me a lot.

reducing the number of used subscriptions should trigger view less,
but it's very far from a perfect solution

Cargo.toml

@@ -9,9 +9,7 @@ ignore = "0.4.33"
 misc-image-integration = "0.1.0"
 rayon = "1.12.0"
 rfd = "0.17.2"
-size = "0.5.0"
 tokio = "1.53.1"
-zip = "8.6.0"
 
 [dependencies.iced]
 version = "0.14.0"

flake.lock

@@ -2,11 +2,11 @@
   "nodes": {
     "crane": {
       "locked": {
-        "lastModified": 1785782307,
-        "narHash": "sha256-MPaRdVkf6zZP5fCPxYCi8Dr4pZzgmXzg8T9nVEbp3Mw=",
+        "lastModified": 1793669695,
+        "narHash": "sha256-9EtV4I6Ohw0tjidL31TMOKHhW/QGVG8NuGiemzIaNCs=",
         "owner": "ipetkov",
         "repo": "crane",
-        "rev": "2c71e194474d13de031d729b729c968ddbe3507f",
+        "rev": "788369ed71ed9d84ef72cb056e4d920050d5b32c",
         "type": "github"
       },
       "original": {
@@ -20,11 +20,11 @@
         "systems": "systems"
       },
       "locked": {
-        "lastModified": 1731533236,
-        "narHash": "sha256-l0KFg5HjrsfsO/JpG+r7fRrqm12kzFHyUHqHCVpMMbI=",
+        "lastModified": 1791914995,
+        "narHash": "sha256-Zf/xfQEAasnwnmEfHqW/4hjDE/s44yn2hD4RuVIZRjA=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "11707dc2f618dd54ca8739b309ec4fc024de578b",
+        "rev": "b7a79d3fea1e214f6d668d521cecec0c01e26544",
         "type": "github"
       },
       "original": {
@@ -35,18 +35,15 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1785747939,
-        "narHash": "sha256-D740uKsMbgsfK2oaDenJLLPIZfq7W0/g4KN/Fls8eKs=",
-        "owner": "nixos",
-        "repo": "nixpkgs",
-        "rev": "104240a772428cc2e20d8fd86c9ddbb886bbaff2",
-        "type": "github"
+        "lastModified": 1793706278,
+        "narHash": "sha256-iCbwhLa+h23/rxGQD9YJJ+BrMYHCPKB6au/BsobNWB4=",
+        "rev": "ea9e3ef341e11c193537f674f821a99f9f436729",
+        "type": "tarball",
+        "url": "https://releases.nixos.org/nixpkgs/nixpkgs-26.11pre1107593.ea9e3ef341e1/nixexprs.tar.zst?lastModified=1793706278&rev=ea9e3ef341e11c193537f674f821a99f9f436729"
       },
       "original": {
-        "owner": "nixos",
-        "ref": "nixpkgs-unstable",
-        "repo": "nixpkgs",
-        "type": "github"
+        "type": "tarball",
+        "url": "https://channels.nixos.org/nixpkgs-unstable/nixexprs.tar.zst"
       }
     },
     "root": {

flake.nix

@@ -1,6 +1,6 @@
 {
   inputs = {
-    nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable";
+    nixpkgs.url = "https://channels.nixos.org/nixpkgs-unstable/nixexprs.tar.zst";
 
     crane.url = "github:ipetkov/crane";
 

src/app/mod.rs

@@ -33,9 +33,20 @@ enum Message {
 
     OpenImage(PathBuf),
 
+    PickPath,
     OpenPath(Option<PathBuf>),
 
-    KeyPressed(keyboard::Key, keyboard::Modifiers),
+    FocusNext,
+    FocusPrevious,
+
+    ScrollBy(f32),
+
+    CycleFilter,
+
+    IncreaseColumns,
+    DecreaseColumns,
+
+    Quit,
 }
 
 #[derive(Default)]
@@ -129,67 +140,36 @@ impl State {
                 }
             }
 
-            Message::KeyPressed(key, modifiers) => match key.as_ref() {
-                // input field cycling
-                keyboard::Key::Named(keyboard::key::Named::Tab) => {
-                    return if modifiers.shift() {
-                        widget::operation::focus_previous()
-                    } else {
-                        widget::operation::focus_next()
-                    };
-                }
+            Message::FocusNext => return widget::operation::focus_next(),
+            Message::FocusPrevious => return widget::operation::focus_next(),
 
-                keyboard::Key::Character("o") => {
+            Message::PickPath => {
                 return Task::perform(
                     async { AsyncFileDialog::new().pick_folder().await.map(Into::into) },
                     Message::OpenPath,
                 );
             }
 
-                keyboard::Key::Character("j")
-                | keyboard::Key::Named(
-                    keyboard::key::Named::ArrowDown | keyboard::key::Named::PageDown,
-                ) => {
+            Message::ScrollBy(offset) => {
                 return widget::operation::scroll_by(
                     "main",
-                        widget::operation::AbsoluteOffset {
-                            x: 0.,
-                            y: if modifiers.shift() { 500. } else { 100. },
-                        },
-                    );
-                }
-                keyboard::Key::Character("k")
-                | keyboard::Key::Named(
-                    keyboard::key::Named::ArrowUp | keyboard::key::Named::PageUp,
-                ) => {
-                    return widget::operation::scroll_by(
-                        "main",
-                        widget::operation::AbsoluteOffset {
-                            x: 0.,
-                            y: if modifiers.shift() { -500. } else { -100. },
-                        },
+                    widget::operation::AbsoluteOffset { x: 0., y: offset },
                 );
             }
 
-                keyboard::Key::Character("=" | "+") => {
-                    self.columns = (self.columns + 1).clamp(1, 10)
-                }
-                keyboard::Key::Character("-" | "_") => {
-                    self.columns = (self.columns - 1).clamp(1, 10)
-                }
+            Message::IncreaseColumns => self.columns = (self.columns + 1).clamp(1, 10),
+            Message::DecreaseColumns => self.columns = (self.columns - 1).clamp(1, 10),
 
-                keyboard::Key::Character("f") => {
+            Message::CycleFilter => {
                 self.filter = match self.filter {
                     widget::image::FilterMethod::Linear => widget::image::FilterMethod::Nearest,
                     widget::image::FilterMethod::Nearest => widget::image::FilterMethod::Linear,
                 }
             }
 
-                keyboard::Key::Character("q") => {
+            Message::Quit => {
                 return window::latest().and_then(window::close);
             }
-                _ => {}
-            },
         }
 
         Task::none()
@@ -240,7 +220,40 @@ impl State {
     fn subscription(&self) -> Subscription<Message> {
         event::listen().filter_map(|event| match event {
             Event::Keyboard(keyboard::Event::KeyPressed { key, modifiers, .. }) => {
-                Some(Message::KeyPressed(key, modifiers))
+                match key.as_ref() {
+                    // input field cycling
+                    keyboard::Key::Named(keyboard::key::Named::Tab) => Some(if modifiers.shift() {
+                        Message::FocusPrevious
+                    } else {
+                        Message::FocusNext
+                    }),
+
+                    keyboard::Key::Character("o") => Some(Message::PickPath),
+
+                    keyboard::Key::Character("j")
+                    | keyboard::Key::Named(
+                        keyboard::key::Named::ArrowDown | keyboard::key::Named::PageDown,
+                    ) => Some(Message::ScrollBy(match modifiers.shift() {
+                        false => 100.,
+                        true => 500.,
+                    })),
+                    keyboard::Key::Character("k")
+                    | keyboard::Key::Named(
+                        keyboard::key::Named::ArrowUp | keyboard::key::Named::PageUp,
+                    ) => Some(Message::ScrollBy(match modifiers.shift() {
+                        false => -100.,
+                        true => -500.,
+                    })),
+
+                    keyboard::Key::Character("=" | "+") => Some(Message::IncreaseColumns),
+                    keyboard::Key::Character("-" | "_") => Some(Message::DecreaseColumns),
+
+                    keyboard::Key::Character("f") => Some(Message::CycleFilter),
+
+                    keyboard::Key::Character("q") => Some(Message::Quit),
+
+                    _ => None,
+                }
             }
             _ => None,
         })