changed rustfmt to actually work hopefully (70 char limit)

also more abstraction stuff

rustfmt.toml

@@ -1,2 +1,2 @@
-#wrap_comments = true
-max_width = 80
+wrap_comments = true
+max_width = 70

src/backends/keycodes.rs

@@ -0,0 +1,209 @@
+#![allow(dead_code)]
+
+#[derive(
+    Debug, Hash, Ord, PartialOrd, PartialEq, Eq, Clone, Copy,
+)]
+pub enum MouseButton {
+    Left,
+    Middle,
+    Right,
+    ScrollUp,
+    ScrollDown,
+    ScrollLeft,
+    ScrollRight,
+    Forward,
+    Backward,
+}
+
+/// from winit
+#[derive(
+    Debug, Hash, Ord, PartialOrd, PartialEq, Eq, Clone, Copy,
+)]
+#[repr(u32)]
+pub enum VirtualKeyCode {
+    Key1,
+    Key2,
+    Key3,
+    Key4,
+    Key5,
+    Key6,
+    Key7,
+    Key8,
+    Key9,
+    Key0,
+    A,
+    B,
+    C,
+    D,
+    E,
+    F,
+    G,
+    H,
+    I,
+    J,
+    K,
+    L,
+    M,
+    N,
+    O,
+    P,
+    Q,
+    R,
+    S,
+    T,
+    U,
+    V,
+    W,
+    X,
+    Y,
+    Z,
+
+    /// The Escape key, next to F1.
+    Escape,
+
+    F1,
+    F2,
+    F3,
+    F4,
+    F5,
+    F6,
+    F7,
+    F8,
+    F9,
+    F10,
+    F11,
+    F12,
+    F13,
+    F14,
+    F15,
+    F16,
+    F17,
+    F18,
+    F19,
+    F20,
+    F21,
+    F22,
+    F23,
+    F24,
+
+    /// Print Screen/SysRq.
+    Snapshot,
+    /// Scroll Lock.
+    Scroll,
+    /// Pause/Break key, next to Scroll lock.
+    Pause,
+
+    /// `Insert`, next to Backspace.
+    Insert,
+    Home,
+    Delete,
+    End,
+    PageDown,
+    PageUp,
+
+    Left,
+    Up,
+    Right,
+    Down,
+
+    /// The Backspace key, right over Enter.
+    // TODO: rename
+    Back,
+    /// The Enter key.
+    Return,
+    /// The space bar.
+    Space,
+
+    /// The "Compose" key on Linux.
+    Compose,
+
+    Caret,
+
+    Numlock,
+    Numpad0,
+    Numpad1,
+    Numpad2,
+    Numpad3,
+    Numpad4,
+    Numpad5,
+    Numpad6,
+    Numpad7,
+    Numpad8,
+    Numpad9,
+    NumpadAdd,
+    NumpadDivide,
+    NumpadDecimal,
+    NumpadComma,
+    NumpadEnter,
+    NumpadEquals,
+    NumpadMultiply,
+    NumpadSubtract,
+
+    AbntC1,
+    AbntC2,
+    Apostrophe,
+    Apps,
+    Asterisk,
+    At,
+    Ax,
+    Backslash,
+    Calculator,
+    Capital,
+    Colon,
+    Comma,
+    Convert,
+    Equals,
+    Grave,
+    Kana,
+    Kanji,
+    LAlt,
+    LBracket,
+    LControl,
+    LShift,
+    LWin,
+    Mail,
+    MediaSelect,
+    MediaStop,
+    Minus,
+    Mute,
+    MyComputer,
+    // also called "Next"
+    NavigateForward,
+    // also called "Prior"
+    NavigateBackward,
+    NextTrack,
+    NoConvert,
+    OEM102,
+    Period,
+    PlayPause,
+    Plus,
+    Power,
+    PrevTrack,
+    RAlt,
+    RBracket,
+    RControl,
+    RShift,
+    RWin,
+    Semicolon,
+    Slash,
+    Sleep,
+    Stop,
+    Sysrq,
+    Tab,
+    Underline,
+    Unlabeled,
+    VolumeDown,
+    VolumeUp,
+    Wake,
+    WebBack,
+    WebFavorites,
+    WebForward,
+    WebHome,
+    WebRefresh,
+    WebSearch,
+    WebStop,
+    Yen,
+    Copy,
+    Paste,
+    Cut,
+}

src/backends/mod.rs

@@ -1,3 +1,5 @@
+mod keycodes;
+mod window_event;
 mod xcb;
 mod xlib;
 

src/backends/window_event.rs

@@ -0,0 +1,220 @@
+#![allow(dead_code)]
+use x11::xlib::Window;
+
+use super::keycodes::{MouseButton, VirtualKeyCode};
+
+#[derive(Debug)]
+pub enum WindowEvent {
+    KeyEvent {
+        window: Window,
+        event: KeyEvent,
+    },
+    ButtonEvent {
+        window: Window,
+        event: ButtonEvent,
+    },
+    MotionEvent {
+        window: Window,
+        event: MotionEvent,
+    },
+    MapEvent {
+        window: Window,
+        event: MapEvent,
+    },
+    UnmapEvent {
+        window: Window,
+        event: UnmapEvent,
+    },
+    CreateEvent {
+        window: Window,
+        event: CreateEvent,
+    },
+    DestroyEvent {
+        window: Window,
+        event: DestroyEvent,
+    },
+    EnterEvent {
+        window: Window,
+        event: EnterEvent,
+    },
+    ConfigureEvent {
+        window: Window,
+        event: ConfigureEvent,
+    },
+    //1 { window: Window, event: 1 },
+}
+
+#[derive(Debug)]
+pub enum KeyState {
+    Pressed,
+    Released,
+}
+
+#[derive(
+    Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Clone, Copy,
+)]
+#[repr(u8)]
+pub enum ModifierKey {
+    Shift,
+    ShiftLock,
+    Control,
+    Alt,
+    AltGr,
+    /// Windows key on most keyboards
+    Super,
+    NumLock,
+}
+
+#[derive(Default, Debug, Clone)]
+pub struct ModifierState {
+    modifiers: std::collections::HashSet<ModifierKey>,
+}
+
+impl ModifierState {
+    pub fn new() -> Self {
+        Self::default()
+    }
+
+    pub fn set_modifier(&mut self, modifier: ModifierKey) {
+        self.modifiers.insert(modifier);
+    }
+
+    pub fn unset_modifier(&mut self, modifier: ModifierKey) {
+        self.modifiers.remove(&modifier);
+    }
+
+    pub fn get_modifier(&mut self, modifier: ModifierKey) -> bool {
+        self.modifiers.contains(&modifier)
+    }
+}
+
+#[derive(Debug)]
+pub struct KeyEvent {
+    state: KeyState,
+    keycode: VirtualKeyCode,
+    modifierstate: ModifierState,
+}
+
+impl KeyEvent {
+    pub fn new(
+        state: KeyState,
+        keycode: VirtualKeyCode,
+        modifierstate: ModifierState,
+    ) -> Self {
+        Self {
+            state,
+            keycode,
+            modifierstate,
+        }
+    }
+}
+
+#[derive(Debug)]
+pub struct ButtonEvent {
+    state: KeyState,
+    keycode: MouseButton,
+    modifierstate: ModifierState,
+}
+
+impl ButtonEvent {
+    pub fn new(
+        state: KeyState,
+        keycode: MouseButton,
+        modifierstate: ModifierState,
+    ) -> Self {
+        Self {
+            state,
+            keycode,
+            modifierstate,
+        }
+    }
+}
+
+#[derive(Debug)]
+pub struct MotionEvent {
+    position: [i32; 2],
+}
+
+impl MotionEvent {
+    pub fn new(position: [i32; 2]) -> Self {
+        Self { position }
+    }
+}
+
+#[derive(Debug)]
+pub struct MapEvent {
+    window: Window,
+}
+
+impl MapEvent {
+    pub fn new(window: Window) -> Self {
+        Self { window }
+    }
+}
+
+#[derive(Debug)]
+pub struct UnmapEvent {
+    window: Window,
+}
+
+impl UnmapEvent {
+    pub fn new(window: Window) -> Self {
+        Self { window }
+    }
+}
+
+#[derive(Debug)]
+pub struct EnterEvent {}
+
+#[derive(Debug)]
+pub struct DestroyEvent {
+    window: Window,
+}
+
+impl DestroyEvent {
+    pub fn new(window: Window) -> Self {
+        Self { window }
+    }
+}
+
+#[derive(Debug)]
+pub struct CreateEvent {
+    window: Window,
+    position: [i32; 2],
+    size: [i32; 2],
+}
+
+impl CreateEvent {
+    pub fn new(
+        window: Window,
+        position: [i32; 2],
+        size: [i32; 2],
+    ) -> Self {
+        Self {
+            window,
+            position,
+            size,
+        }
+    }
+}
+
+#[derive(Debug)]
+pub struct ConfigureEvent {
+    window: Window,
+    position: [i32; 2],
+    size: [i32; 2],
+}
+
+impl ConfigureEvent {
+    pub fn new(
+        window: Window,
+        position: [i32; 2],
+        size: [i32; 2],
+    ) -> Self {
+        Self {
+            window,
+            position,
+            size,
+        }
+    }
+}

src/backends/xcb.rs

@@ -12,8 +12,8 @@ use x11rb::{
     errors::ReplyError,
     errors::ReplyOrIdError,
     protocol::xproto::{
-        Atom, ChangeWindowAttributesAux, ConnectionExt, EventMask, Screen,
-        Setup,
+        Atom, ChangeWindowAttributesAux, ConnectionExt, EventMask,
+        Screen, Setup,
     },
 };
 
@@ -41,12 +41,37 @@ mod tests {
             .enumerate()
         {
             println!(
-                "keycode: {:#x?}\tkeysyms: {:0x?}",
+                "keycode: {:#?}\tkeysyms: {:0x?}",
                 xcb.setup().min_keycode as usize + i,
                 keysyms
             );
         }
     }
+
+    #[test]
+    fn modifier_masks() {
+        let xcb = create_backend().unwrap();
+
+        let mapping = xcb
+            .connection
+            .get_modifier_mapping()
+            .unwrap()
+            .reply()
+            .unwrap();
+
+        for (modifier_index, keycodes) in mapping
+            .keycodes
+            .chunks(mapping.keycodes_per_modifier() as usize)
+            .enumerate()
+        {
+            println!(
+                "Mod: {}[{:#x?}] keycodes: {:?}",
+                modifier_index,
+                1 << modifier_index,
+                keycodes
+            );
+        }
+    }
 }
 
 #[repr(u8)]
@@ -205,24 +230,29 @@ impl Atoms {
     where
         C: Connection,
     {
-        let wm_protocols = connection.intern_atom(false, b"WM_PROTOCOLS")?;
+        let wm_protocols =
+            connection.intern_atom(false, b"WM_PROTOCOLS")?;
         let wm_state = connection.intern_atom(false, b"WM_STATE")?;
         let wm_delete_window =
             connection.intern_atom(false, b"WM_DELETE_WINDOW")?;
-        let wm_take_focus = connection.intern_atom(false, b"WM_TAKE_FOCUS")?;
-        let net_supported = connection.intern_atom(false, b"_NET_SUPPORTED")?;
+        let wm_take_focus =
+            connection.intern_atom(false, b"WM_TAKE_FOCUS")?;
+        let net_supported =
+            connection.intern_atom(false, b"_NET_SUPPORTED")?;
         let net_active_window =
             connection.intern_atom(false, b"_NET_ACTIVE_WINDOW")?;
         let net_client_list =
             connection.intern_atom(false, b"_NET_CLIENT_LIST")?;
-        let net_wm_name = connection.intern_atom(false, b"_NET_WM_NAME")?;
-        let net_wm_state = connection.intern_atom(false, b"_NET_WM_STATE")?;
-        let net_wm_state_fullscreen =
-            connection.intern_atom(false, b"_NET_WM_STATE_FULLSCREEN")?;
+        let net_wm_name =
+            connection.intern_atom(false, b"_NET_WM_NAME")?;
+        let net_wm_state =
+            connection.intern_atom(false, b"_NET_WM_STATE")?;
+        let net_wm_state_fullscreen = connection
+            .intern_atom(false, b"_NET_WM_STATE_FULLSCREEN")?;
         let net_wm_window_type =
             connection.intern_atom(false, b"_NET_WM_WINDOW_TYPE")?;
-        let net_wm_window_type_dialog =
-            connection.intern_atom(false, b"_NET_WM_WINDOW_TYPE_DIALOG")?;
+        let net_wm_window_type_dialog = connection
+            .intern_atom(false, b"_NET_WM_WINDOW_TYPE_DIALOG")?;
 
         Ok(Self {
             wm_protocols: wm_protocols.reply()?.atom,
@@ -234,9 +264,13 @@ impl Atoms {
             net_client_list: net_client_list.reply()?.atom,
             net_wm_name: net_wm_name.reply()?.atom,
             net_wm_state: net_wm_state.reply()?.atom,
-            net_wm_state_fullscreen: net_wm_state_fullscreen.reply()?.atom,
+            net_wm_state_fullscreen: net_wm_state_fullscreen
+                .reply()?
+                .atom,
             net_wm_window_type: net_wm_window_type.reply()?.atom,
-            net_wm_window_type_dialog: net_wm_window_type_dialog.reply()?.atom,
+            net_wm_window_type_dialog: net_wm_window_type_dialog
+                .reply()?
+                .atom,
         })
     }
 }
@@ -250,9 +284,10 @@ where
     atoms: Atoms,
 }
 
-pub fn create_backend(
-) -> Result<X11Backend<impl Connection + Send + Sync>, Box<dyn std::error::Error>>
-{
+pub fn create_backend() -> Result<
+    X11Backend<impl Connection + Send + Sync>,
+    Box<dyn std::error::Error>,
+> {
     let (connection, screen) = connect(None)?;
 
     Ok(X11Backend::new(Arc::new(connection), screen)?)
@@ -338,10 +373,14 @@ where
         }
     }
 
-    pub fn request_substructure_events(&self) -> Result<(), ReplyError> {
-        let attributes = ChangeWindowAttributesAux::default().event_mask(
-            EventMask::SUBSTRUCTURE_REDIRECT | EventMask::SUBSTRUCTURE_NOTIFY,
-        );
+    pub fn request_substructure_events(
+        &self,
+    ) -> Result<(), ReplyError> {
+        let attributes = ChangeWindowAttributesAux::default()
+            .event_mask(
+                EventMask::SUBSTRUCTURE_REDIRECT
+                    | EventMask::SUBSTRUCTURE_NOTIFY,
+            );
 
         match self
             .connection

src/backends/xlib.rs

@@ -1,34 +0,0 @@
-use std::ptr::null;
-
-use x11::xlib::{Window, XRootWindow};
-
-// xlib backend
-
-pub struct XLib {
-    display: *mut x11::xlib::Display,
-    screen: i32,
-}
-
-impl Drop for XLib {
-    fn drop(&mut self) {
-        unsafe {
-            x11::xlib::XCloseDisplay(self.display);
-        }
-    }
-}
-
-impl XLib {
-    pub fn new() -> Self {
-        let (display, screen) = unsafe {
-            let display = x11::xlib::XOpenDisplay(null());
-            let screen = x11::xlib::XDefaultScreen(display);
-
-            (display, screen)
-        };
-        Self { display, screen }
-    }
-
-    fn root_window(&self) -> Window {
-        unsafe { XRootWindow(self.display, self.screen) }
-    }
-}

src/backends/xlib/mod.rs

@@ -0,0 +1,250 @@
+#![allow(non_upper_case_globals)]
+pub mod keysym;
+
+use std::ptr::null;
+
+use x11::xlib::{
+    ButtonPress, ButtonRelease, ConfigureRequest, CreateNotify,
+    DestroyNotify, EnterNotify, KeyPress, KeyRelease, MapRequest,
+    MotionNotify, UnmapNotify, Window, XAnyEvent, XButtonEvent,
+    XConfigureRequestEvent, XCreateWindowEvent, XDestroyWindowEvent,
+    XEvent, XKeyEvent, XLookupKeysym, XMapRequestEvent, XMotionEvent,
+    XNextEvent, XRootWindow, XUnmapEvent,
+};
+
+use crate::backends::window_event::{
+    ButtonEvent, KeyEvent, KeyState, ModifierKey,
+};
+
+use self::keysym::{keysym_to_virtual_keycode, xev_to_mouse_button};
+
+use super::window_event::{
+    ConfigureEvent, CreateEvent, DestroyEvent, MapEvent,
+    ModifierState, MotionEvent, UnmapEvent, WindowEvent,
+};
+
+// xlib backend
+pub struct XLib {
+    display: *mut x11::xlib::Display,
+    modifier_state: ModifierState,
+    screen: i32,
+}
+
+impl Drop for XLib {
+    fn drop(&mut self) {
+        unsafe {
+            x11::xlib::XCloseDisplay(self.display);
+        }
+    }
+}
+
+impl XLib {
+    pub fn new() -> Self {
+        let (display, screen) = unsafe {
+            let display = x11::xlib::XOpenDisplay(null());
+            let screen = x11::xlib::XDefaultScreen(display);
+
+            (display, screen)
+        };
+        Self {
+            display,
+            screen,
+            modifier_state: Default::default(),
+        }
+    }
+
+    fn root_window(&self) -> Window {
+        unsafe { XRootWindow(self.display, self.screen) }
+    }
+
+    fn update_modifier_state(
+        &mut self,
+        keyevent: &x11::xlib::XKeyEvent,
+    ) {
+        //keyevent.keycode
+        let keysym = self.keyev_to_keysym(keyevent);
+
+        use x11::keysym::*;
+
+        let modifier = match keysym as u32 {
+            XK_Shift_L | XK_Shift_R => Some(ModifierKey::Shift),
+            XK_Control_L | XK_Control_R => Some(ModifierKey::Control),
+            XK_Alt_L | XK_Alt_R => Some(ModifierKey::Alt),
+            XK_ISO_Level3_Shift => Some(ModifierKey::AltGr),
+            XK_Caps_Lock => Some(ModifierKey::ShiftLock),
+            XK_Num_Lock => Some(ModifierKey::NumLock),
+            XK_Win_L | XK_Win_R => Some(ModifierKey::Super),
+            XK_Super_L | XK_Super_R => Some(ModifierKey::Super),
+            _ => None,
+        };
+
+        if let Some(modifier) = modifier {
+            match keyevent.type_ {
+                KeyPress => {
+                    self.modifier_state.set_modifier(modifier)
+                }
+                KeyRelease => {
+                    self.modifier_state.set_modifier(modifier)
+                }
+                _ => unreachable!(
+                    "keyyevent != (KeyPress | KeyRelease)"
+                ),
+            }
+        }
+    }
+
+    fn keyev_to_keysym(&self, keyev: &XKeyEvent) -> u32 {
+        unsafe {
+            XLookupKeysym(keyev as *const _ as *mut _, 0) as u32
+        }
+    }
+
+    pub fn next_event(&self) -> XEvent {
+        unsafe {
+            let mut event = std::mem::MaybeUninit::zeroed();
+            XNextEvent(self.display, event.as_mut_ptr());
+
+            event.assume_init()
+        }
+    }
+
+    fn next_window_event(&mut self) -> WindowEvent {
+        loop {
+            let event = self.next_event();
+
+            match event.get_type() {
+                KeyPress | KeyRelease => {
+                    let key_ev: &XKeyEvent = event.as_ref();
+
+                    self.update_modifier_state(key_ev);
+
+                    let keycode = keysym_to_virtual_keycode(
+                        self.keyev_to_keysym(event.as_ref()),
+                    );
+
+                    if let Some(keycode) = keycode {
+                        return WindowEvent::KeyEvent {
+                            window: key_ev.subwindow,
+                            event: KeyEvent::new(
+                                match event.get_type() {
+                                    KeyPress => KeyState::Pressed,
+                                    KeyRelease => KeyState::Released,
+                                    _ => unreachable!(),
+                                },
+                                keycode,
+                                self.modifier_state.clone(),
+                            ),
+                        };
+                    }
+                }
+                ButtonPress | ButtonRelease => {
+                    let button_ev: &XButtonEvent = event.as_ref();
+                    let button = xev_to_mouse_button(button_ev);
+
+                    if let Some(button) = button {
+                        return WindowEvent::ButtonEvent {
+                            window: button_ev.subwindow,
+                            event: ButtonEvent::new(
+                                match event.get_type() {
+                                    ButtonPress => KeyState::Pressed,
+                                    ButtonRelease => {
+                                        KeyState::Released
+                                    }
+                                    _ => unreachable!(),
+                                },
+                                button,
+                                self.modifier_state.clone(),
+                            ),
+                        };
+                    }
+                }
+                MotionNotify => {
+                    let motion_ev: &XMotionEvent = event.as_ref();
+
+                    return WindowEvent::MotionEvent {
+                        window: motion_ev.subwindow,
+                        event: MotionEvent::new([
+                            motion_ev.x_root,
+                            motion_ev.y_root,
+                        ]),
+                    };
+                }
+                MapRequest => {
+                    // MapEvent
+                    let map_ev: &XMapRequestEvent = event.as_ref();
+
+                    return WindowEvent::MapEvent {
+                        window: map_ev.window,
+                        event: MapEvent::new(map_ev.window),
+                    };
+                }
+                UnmapNotify => {
+                    // UnmapEvent
+                    let unmap_ev: &XUnmapEvent = event.as_ref();
+
+                    return WindowEvent::UnmapEvent {
+                        window: unmap_ev.window,
+                        event: UnmapEvent::new(unmap_ev.window),
+                    };
+                }
+                CreateNotify => {
+                    // CreateEvent
+                    let create_ev: &XCreateWindowEvent =
+                        event.as_ref();
+
+                    return WindowEvent::CreateEvent {
+                        window: create_ev.window,
+                        event: CreateEvent::new(
+                            create_ev.window,
+                            [create_ev.x, create_ev.y],
+                            [create_ev.width, create_ev.height],
+                        ),
+                    };
+                }
+                DestroyNotify => {
+                    // DestroyEvent
+                    let destroy_ev: &XDestroyWindowEvent =
+                        event.as_ref();
+
+                    return WindowEvent::DestroyEvent {
+                        window: destroy_ev.window,
+                        event: DestroyEvent::new(destroy_ev.window),
+                    };
+                }
+                ConfigureRequest => {
+                    // ConfigureEvent
+                    let configure_ev: &XConfigureRequestEvent =
+                        event.as_ref();
+
+                    return WindowEvent::ConfigureEvent {
+                        window: configure_ev.window,
+                        event: ConfigureEvent::new(
+                            configure_ev.window,
+                            [configure_ev.x, configure_ev.y],
+                            [configure_ev.width, configure_ev.height],
+                        ),
+                    };
+                }
+                _ => {}
+            }
+        }
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    //#[test]
+    // fn window_events() {
+    //     let mut xlib = XLib::new();
+
+    //     loop {
+    //         if let Some(event) =
+    //             xlib.xevent_to_window_event(xlib.next_event())
+    //         {
+    //             println!("{:#?}", event);
+    //         }
+    //     }
+    // }
+}

src/client_logic.rs

@@ -185,7 +185,9 @@ where
             .map(move |&i| &self.workspaces[i])
     }
 
-    fn get_current_mut(&mut self) -> impl Iterator<Item = &mut Workspace<T>> {
+    fn get_current_mut(
+        &mut self,
+    ) -> impl Iterator<Item = &mut Workspace<T>> {
         let current_indices = &self.current_indices;
 
         self.workspaces
@@ -217,7 +219,9 @@ where
             .flat_map(|w| w.aux.iter())
     }
 
-    fn iter_mut_current_master(&mut self) -> impl Iterator<Item = &mut T> {
+    fn iter_mut_current_master(
+        &mut self,
+    ) -> impl Iterator<Item = &mut T> {
         let current_indices = &self.current_indices;
 
         self.workspaces
@@ -228,7 +232,9 @@ where
             .flat_map(|w| w.master.iter_mut())
     }
 
-    fn iter_mut_current_aux(&mut self) -> impl Iterator<Item = &mut T> {
+    fn iter_mut_current_aux(
+        &mut self,
+    ) -> impl Iterator<Item = &mut T> {
         let current_indices = &self.current_indices;
 
         self.workspaces
@@ -243,7 +249,9 @@ where
         self.workspaces.iter()
     }
 
-    fn iter_mut(&mut self) -> impl Iterator<Item = &mut Workspace<T>> {
+    fn iter_mut(
+        &mut self,
+    ) -> impl Iterator<Item = &mut Workspace<T>> {
         self.workspaces.iter_mut()
     }
 
@@ -270,13 +278,18 @@ where
     where
         Vec<usize>: From<I>,
     {
-        self.previous_indices =
-            Some(std::mem::replace(&mut self.current_indices, idx.into()));
+        self.previous_indices = Some(std::mem::replace(
+            &mut self.current_indices,
+            idx.into(),
+        ));
     }
 
     fn select_previous_workspaces(&mut self) {
         if let Some(previous_indices) = &mut self.previous_indices {
-            std::mem::swap(previous_indices, &mut self.current_indices);
+            std::mem::swap(
+                previous_indices,
+                &mut self.current_indices,
+            );
         }
     }
 
@@ -394,7 +407,8 @@ where
             (dimensions.0 - gap * 2, dimensions.1 - gap * 2)
         };
 
-        let len_master = self.workspaces.iter_current_master().count();
+        let len_master =
+            self.workspaces.iter_current_master().count();
         let len_aux = self.workspaces.iter_current_aux().count();
 
         let width_master = match len_aux {
@@ -412,18 +426,23 @@ where
             n => height / n as i32,
         };
 
-        for (i, id) in self.workspaces.iter_mut_current_master().enumerate() {
+        for (i, id) in
+            self.workspaces.iter_mut_current_master().enumerate()
+        {
             let size = (
                 width_master - gap * 2 - border * 2,
                 height_master - gap * 2 - border * 2,
             );
 
-            let position = (gap * 2, height_master * i as i32 + gap * 2);
+            let position =
+                (gap * 2, height_master * i as i32 + gap * 2);
 
             if let Some(client) =
                 Option::<&mut Client<T>>::from(self.store.get_mut(id))
             {
-                if *client.position() != position || *client.size() != size {
+                if *client.position() != position
+                    || *client.size() != size
+                {
                     *client.position_mut() = position;
                     *client.size_mut() = size;
 
@@ -432,19 +451,25 @@ where
             }
         }
 
-        for (i, id) in self.workspaces.iter_mut_current_aux().enumerate() {
+        for (i, id) in
+            self.workspaces.iter_mut_current_aux().enumerate()
+        {
             let size = (
                 width_aux - gap * 2 - border * 2,
                 height_aux - gap * 2 - border * 2,
             );
 
-            let position =
-                (width_master + gap * 2, height_aux * i as i32 + gap * 2);
+            let position = (
+                width_master + gap * 2,
+                height_aux * i as i32 + gap * 2,
+            );
 
             if let Some(client) =
                 Option::<&mut Client<T>>::from(self.store.get_mut(id))
             {
-                if *client.position() != position || *client.size() != size {
+                if *client.position() != position
+                    || *client.size() != size
+                {
                     *client.position_mut() = position;
                     *client.size_mut() = size;
 

src/clients.rs

@@ -217,7 +217,8 @@ impl ClientState {
         if client.is_transient()
             && self.contains(&client.transient_for.unwrap())
         {
-            let transient = self.get(&client.transient_for.unwrap()).unwrap();
+            let transient =
+                self.get(&client.transient_for.unwrap()).unwrap();
 
             client.position = {
                 (
@@ -271,7 +272,9 @@ impl ClientState {
             || self.floating_clients.contains_key(&key)
     }
 
-    pub fn iter_floating(&self) -> impl Iterator<Item = (&u64, &Client)> {
+    pub fn iter_floating(
+        &self,
+    ) -> impl Iterator<Item = (&u64, &Client)> {
         self.floating_clients.iter()
     }
 
@@ -283,32 +286,44 @@ impl ClientState {
             .filter(move |&(k, _)| self.is_client_visible(k))
     }
 
-    fn iter_all_clients(&self) -> impl Iterator<Item = (&u64, &Client)> {
+    fn iter_all_clients(
+        &self,
+    ) -> impl Iterator<Item = (&u64, &Client)> {
         self.floating_clients.iter().chain(self.clients.iter())
     }
 
-    pub fn iter_hidden(&self) -> impl Iterator<Item = (&u64, &Client)> {
+    pub fn iter_hidden(
+        &self,
+    ) -> impl Iterator<Item = (&u64, &Client)> {
         self.iter_all_clients()
             .filter(move |&(k, _)| !self.is_client_visible(k))
     }
 
-    pub fn iter_transient(&self) -> impl Iterator<Item = (&u64, &Client)> {
+    pub fn iter_transient(
+        &self,
+    ) -> impl Iterator<Item = (&u64, &Client)> {
         self.iter_floating().filter(|&(_, c)| c.is_transient())
     }
 
-    pub fn iter_visible(&self) -> impl Iterator<Item = (&u64, &Client)> {
+    pub fn iter_visible(
+        &self,
+    ) -> impl Iterator<Item = (&u64, &Client)> {
         self.iter_all_clients()
             .filter(move |&(k, _)| self.is_client_visible(k))
     }
 
     #[allow(dead_code)]
-    pub fn iter_current_screen(&self) -> impl Iterator<Item = (&u64, &Client)> {
+    pub fn iter_current_screen(
+        &self,
+    ) -> impl Iterator<Item = (&u64, &Client)> {
         self.clients.iter().filter(move |&(k, _)| {
             self.virtual_screens.get_current().contains(k)
         })
     }
 
-    pub fn iter_master_stack(&self) -> impl Iterator<Item = (&u64, &Client)> {
+    pub fn iter_master_stack(
+        &self,
+    ) -> impl Iterator<Item = (&u64, &Client)> {
         self.virtual_screens
             .get_current()
             .master
@@ -316,7 +331,9 @@ impl ClientState {
             .map(move |k| (k, self.get(k).unwrap()))
     }
 
-    pub fn iter_aux_stack(&self) -> impl Iterator<Item = (&u64, &Client)> {
+    pub fn iter_aux_stack(
+        &self,
+    ) -> impl Iterator<Item = (&u64, &Client)> {
         self.virtual_screens
             .get_current()
             .aux
@@ -441,12 +458,15 @@ impl ClientState {
                 // transient clients cannot be tiled
                 match floating_client.is_transient() {
                     true => {
-                        self.floating_clients.insert(key, floating_client);
+                        self.floating_clients
+                            .insert(key, floating_client);
                     }
 
                     false => {
                         self.clients.insert(key, floating_client);
-                        self.virtual_screens.get_mut_current().insert(&key);
+                        self.virtual_screens
+                            .get_mut_current()
+                            .insert(&key);
                     }
                 }
             }
@@ -464,7 +484,9 @@ impl ClientState {
         K: ClientKey,
     {
         if self.contains(key) {
-            if let Some(vs) = self.get_mut_virtualscreen_for_client(key) {
+            if let Some(vs) =
+                self.get_mut_virtualscreen_for_client(key)
+            {
                 vs.remove(key);
 
                 // we removed a client so the layout changed, rearrange
@@ -473,7 +495,10 @@ impl ClientState {
         }
     }
 
-    fn get_virtualscreen_for_client<K>(&self, key: &K) -> Option<&VirtualScreen>
+    fn get_virtualscreen_for_client<K>(
+        &self,
+        key: &K,
+    ) -> Option<&VirtualScreen>
     where
         K: ClientKey,
     {
@@ -502,7 +527,10 @@ impl ClientState {
         })
     }
 
-    pub fn get_stack_for_client<K>(&self, key: &K) -> Option<&Vec<u64>>
+    pub fn get_stack_for_client<K>(
+        &self,
+        key: &K,
+    ) -> Option<&Vec<u64>>
     where
         K: ClientKey,
     {
@@ -637,7 +665,8 @@ impl ClientState {
                 self.master_size / 2.0
             };
 
-            let master_width = (effective_width as f32 * master_size) as i32;
+            let master_width =
+                (effective_width as f32 * master_size) as i32;
             let aux_width = effective_width - master_width;
 
             (master_width, aux_width)
@@ -665,7 +694,8 @@ impl ClientState {
                 master_height - gap * 2 - self.border_size * 2,
             );
 
-            let position = (gap * 2, master_height * i as i32 + gap * 2);
+            let position =
+                (gap * 2, master_height * i as i32 + gap * 2);
 
             if let Some(client) = self.clients.get_mut(key) {
                 *client = Client {
@@ -683,8 +713,10 @@ impl ClientState {
                 aux_height - gap * 2 - self.border_size * 2,
             );
 
-            let position =
-                (master_width + gap * 2, aux_height * i as i32 + gap * 2);
+            let position = (
+                master_width + gap * 2,
+                aux_height * i as i32 + gap * 2,
+            );
 
             if let Some(client) = self.clients.get_mut(key) {
                 *client = Client {
@@ -720,7 +752,8 @@ impl VirtualScreen {
     where
         K: ClientKey,
     {
-        self.master.contains(&key.key()) || self.aux.contains(&key.key())
+        self.master.contains(&key.key())
+            || self.aux.contains(&key.key())
     }
 
     fn is_in_master<K>(&self, key: &K) -> bool
@@ -766,8 +799,11 @@ impl VirtualScreen {
                 self.aux.extend(self.master.drain(index..=index));
             }
             None => {
-                let index =
-                    self.aux.iter().position(|&k| k == key.key()).unwrap();
+                let index = self
+                    .aux
+                    .iter()
+                    .position(|&k| k == key.key())
+                    .unwrap();
                 self.master.extend(self.aux.drain(index..=index));
             }
         }
@@ -814,7 +850,9 @@ impl VirtualScreenStore {
         self.screens.iter()
     }
 
-    fn iter_mut(&mut self) -> impl Iterator<Item = &mut VirtualScreen> {
+    fn iter_mut(
+        &mut self,
+    ) -> impl Iterator<Item = &mut VirtualScreen> {
         self.screens.iter_mut()
     }
 
@@ -861,7 +899,9 @@ impl<T> Into<Option<T>> for ClientEntry<T> {
     fn into(self) -> Option<T> {
         match self {
             Self::Vacant => None,
-            Self::Tiled(client) | Self::Floating(client) => Some(client),
+            Self::Tiled(client) | Self::Floating(client) => {
+                Some(client)
+            }
         }
     }
 }

src/clients2.rs

@@ -47,7 +47,10 @@ impl<T> PartialOrd for Client<T>
 where
     T: PartialOrd,
 {
-    fn partial_cmp(&self, other: &Self) -> Option<std::cmp::Ordering> {
+    fn partial_cmp(
+        &self,
+        other: &Self,
+    ) -> Option<std::cmp::Ordering> {
         self.window_id.partial_cmp(&other.window_id)
     }
 }
@@ -229,7 +232,10 @@ where
         Self::default()
     }
 
-    pub fn insert(&mut self, entry: Entry<Client<T>>) -> Entry<&Client<T>> {
+    pub fn insert(
+        &mut self,
+        entry: Entry<Client<T>>,
+    ) -> Entry<&Client<T>> {
         if let Some(key) =
             Option::<&Client<T>>::from(&entry).map(|c| c.window_id())
         {
@@ -258,11 +264,16 @@ where
     pub fn remove(&mut self, key: &T) -> Entry<Client<T>> {
         if let Some(client) = self.tiled_clients.remove(key) {
             Entry::Tiled(client)
-        } else if let Some(client) = self.floating_clients.remove(key) {
+        } else if let Some(client) = self.floating_clients.remove(key)
+        {
             Entry::Floating(client)
-        } else if let Some(client) = self.transient_clients.remove(key) {
+        } else if let Some(client) =
+            self.transient_clients.remove(key)
+        {
             Entry::Transient(client)
-        } else if let Some(client) = self.fullscreen_clients.remove(key) {
+        } else if let Some(client) =
+            self.fullscreen_clients.remove(key)
+        {
             Entry::Fullscreen(client)
         } else {
             Entry::Vacant
@@ -276,7 +287,8 @@ where
             Entry::Floating(client)
         } else if let Some(client) = self.transient_clients.get(key) {
             Entry::Transient(client)
-        } else if let Some(client) = self.fullscreen_clients.get(key) {
+        } else if let Some(client) = self.fullscreen_clients.get(key)
+        {
             Entry::Fullscreen(client)
         } else {
             Entry::Vacant
@@ -286,11 +298,17 @@ where
     pub fn get_mut(&mut self, key: &T) -> Entry<&mut Client<T>> {
         if let Some(client) = self.tiled_clients.get_mut(key) {
             Entry::Tiled(client)
-        } else if let Some(client) = self.floating_clients.get_mut(key) {
+        } else if let Some(client) =
+            self.floating_clients.get_mut(key)
+        {
             Entry::Floating(client)
-        } else if let Some(client) = self.transient_clients.get_mut(key) {
+        } else if let Some(client) =
+            self.transient_clients.get_mut(key)
+        {
             Entry::Transient(client)
-        } else if let Some(client) = self.fullscreen_clients.get_mut(key) {
+        } else if let Some(client) =
+            self.fullscreen_clients.get_mut(key)
+        {
             Entry::Fullscreen(client)
         } else {
             Entry::Vacant
@@ -304,7 +322,9 @@ where
             || self.fullscreen_clients.contains_key(key)
     }
 
-    pub fn iter_tiled(&self) -> impl Iterator<Item = (&T, &Client<T>)> {
+    pub fn iter_tiled(
+        &self,
+    ) -> impl Iterator<Item = (&T, &Client<T>)> {
         self.tiled_clients.iter()
     }
 
@@ -314,7 +334,9 @@ where
         self.tiled_clients.iter_mut()
     }
 
-    pub fn iter_floating(&self) -> impl Iterator<Item = (&T, &Client<T>)> {
+    pub fn iter_floating(
+        &self,
+    ) -> impl Iterator<Item = (&T, &Client<T>)> {
         self.floating_clients.iter()
     }
 
@@ -324,7 +346,9 @@ where
         self.floating_clients.iter_mut()
     }
 
-    pub fn iter_transient(&self) -> impl Iterator<Item = (&T, &Client<T>)> {
+    pub fn iter_transient(
+        &self,
+    ) -> impl Iterator<Item = (&T, &Client<T>)> {
         self.transient_clients.iter()
     }
 
@@ -334,7 +358,9 @@ where
         self.transient_clients.iter_mut()
     }
 
-    pub fn iter_fullscreen(&self) -> impl Iterator<Item = (&T, &Client<T>)> {
+    pub fn iter_fullscreen(
+        &self,
+    ) -> impl Iterator<Item = (&T, &Client<T>)> {
         self.fullscreen_clients.iter()
     }
 
@@ -372,7 +398,10 @@ mod tests {
             Entry::Tiled(client.clone()),
             client_store.remove(&client.borrow())
         );
-        assert_eq!(Entry::Vacant, client_store.remove(&client.borrow()));
+        assert_eq!(
+            Entry::Vacant,
+            client_store.remove(&client.borrow())
+        );
         assert_eq!(Entry::Vacant, client_store.remove(&1));
 
         assert!(client_store.contains(&client2.borrow()));

src/main.rs

@@ -23,9 +23,11 @@ fn init_logger() {
         "{d(%Y-%m-%d %H:%M:%S %Z)(utc)} │ {({M}::{f}:{L}):>25} │ {h({l:>5})} │ {m}{n}",
     ));
 
-    let stdout = ConsoleAppender::builder().encoder(encoder.clone()).build();
+    let stdout =
+        ConsoleAppender::builder().encoder(encoder.clone()).build();
 
-    let home = dirs::home_dir().expect("Failed to get $HOME env var.");
+    let home =
+        dirs::home_dir().expect("Failed to get $HOME env var.");
 
     let _logfile = FileAppender::builder()
         .encoder(encoder)
@@ -33,7 +35,9 @@ fn init_logger() {
         .unwrap();
 
     let config = Config::builder()
-        .appender(Appender::builder().build("stdout", Box::new(stdout)))
+        .appender(
+            Appender::builder().build("stdout", Box::new(stdout)),
+        )
         //.appender(Appender::builder().build("logfile", Box::new(logfile)))
         .build(
             Root::builder()

src/state.rs

@@ -151,7 +151,9 @@ impl WindowManager {
                     .get_focused()
                     .into_option()
                     .map(|c| c.key())
-                    .and_then(|k| Some(wm.clients.toggle_floating(&k)));
+                    .and_then(|k| {
+                        Some(wm.clients.toggle_floating(&k))
+                    });
 
                 wm.arrange_clients();
             },
@@ -224,15 +226,24 @@ impl WindowManager {
     }
 
     fn add_vs_switch_keybinds(&mut self) {
-        fn rotate_west<const N: usize>(wm: &mut WindowManager, _: &XKeyEvent) {
+        fn rotate_west<const N: usize>(
+            wm: &mut WindowManager,
+            _: &XKeyEvent,
+        ) {
             wm.rotate_virtual_screen(Direction::West(N));
         }
 
-        fn rotate_east<const N: usize>(wm: &mut WindowManager, _: &XKeyEvent) {
+        fn rotate_east<const N: usize>(
+            wm: &mut WindowManager,
+            _: &XKeyEvent,
+        ) {
             wm.rotate_virtual_screen(Direction::East(N));
         }
 
-        fn goto_nth<const N: usize>(wm: &mut WindowManager, _: &XKeyEvent) {
+        fn goto_nth<const N: usize>(
+            wm: &mut WindowManager,
+            _: &XKeyEvent,
+        ) {
             wm.go_to_nth_virtual_screen(N)
         }
 
@@ -333,13 +344,23 @@ impl WindowManager {
             match event.get_type() {
                 xlib::MapRequest => self.map_request(&event),
                 xlib::UnmapNotify => self.unmap_notify(&event),
-                xlib::ConfigureRequest => self.configure_request(&event),
+                xlib::ConfigureRequest => {
+                    self.configure_request(&event)
+                }
                 xlib::EnterNotify => self.enter_notify(&event),
                 xlib::DestroyNotify => self.destroy_notify(&event),
-                xlib::ButtonPress => self.button_press(event.as_ref()),
-                xlib::ButtonRelease => self.button_release(event.as_ref()),
-                xlib::MotionNotify => self.motion_notify(event.as_ref()),
-                xlib::KeyPress => self.handle_keybinds(event.as_ref()),
+                xlib::ButtonPress => {
+                    self.button_press(event.as_ref())
+                }
+                xlib::ButtonRelease => {
+                    self.button_release(event.as_ref())
+                }
+                xlib::MotionNotify => {
+                    self.motion_notify(event.as_ref())
+                }
+                xlib::KeyPress => {
+                    self.handle_keybinds(event.as_ref())
+                }
                 _ => {}
             }
         }
@@ -354,7 +375,8 @@ impl WindowManager {
     }
 
     fn kill_client(&mut self, _event: &XKeyEvent) {
-        if let Some(client) = self.clients.get_focused().into_option() {
+        if let Some(client) = self.clients.get_focused().into_option()
+        {
             self.xlib.kill_client(client);
         }
     }
@@ -365,7 +387,8 @@ impl WindowManager {
         for kb in self.keybinds.clone().into_iter() {
             if let KeyOrButton::Key(keycode, modmask) = kb.key {
                 if keycode as u32 == event.keycode
-                    && modmask & clean_mask == event.state & clean_mask
+                    && modmask & clean_mask
+                        == event.state & clean_mask
                 {
                     (kb.closure)(self, event);
                 }
@@ -409,8 +432,12 @@ impl WindowManager {
 
     fn focus_any(&mut self) {
         // focus first client in all visible clients
-        let to_focus =
-            self.clients.iter_visible().next().map(|(k, _)| k).cloned();
+        let to_focus = self
+            .clients
+            .iter_visible()
+            .next()
+            .map(|(k, _)| k)
+            .cloned();
 
         if let Some(key) = to_focus {
             self.focus_client(&key, false);
@@ -418,7 +445,8 @@ impl WindowManager {
     }
 
     fn focus_master_stack(&mut self) {
-        let focused = self.clients.get_focused().into_option().map(|c| c.key());
+        let focused =
+            self.clients.get_focused().into_option().map(|c| c.key());
 
         let k = self
             .clients
@@ -436,7 +464,8 @@ impl WindowManager {
     }
 
     fn focus_aux_stack(&mut self) {
-        let focused = self.clients.get_focused().into_option().map(|c| c.key());
+        let focused =
+            self.clients.get_focused().into_option().map(|c| c.key());
 
         let k = self
             .clients
@@ -454,12 +483,12 @@ impl WindowManager {
     }
 
     fn focus_up(&mut self) {
-        let focused = self.clients.get_focused().into_option().map(|c| c.key());
+        let focused =
+            self.clients.get_focused().into_option().map(|c| c.key());
 
         let k = focused.and_then(|focused| {
-            self.clients
-                .get_stack_for_client(&focused)
-                .and_then(|stack| {
+            self.clients.get_stack_for_client(&focused).and_then(
+                |stack| {
                     stack
                         .iter()
                         .rev()
@@ -467,7 +496,8 @@ impl WindowManager {
                         .skip(1)
                         .next()
                         .cloned()
-                })
+                },
+            )
         });
 
         if let Some(k) = k {
@@ -476,19 +506,20 @@ impl WindowManager {
     }
 
     fn focus_down(&mut self) {
-        let focused = self.clients.get_focused().into_option().map(|c| c.key());
+        let focused =
+            self.clients.get_focused().into_option().map(|c| c.key());
 
         let k = focused.and_then(|focused| {
-            self.clients
-                .get_stack_for_client(&focused)
-                .and_then(|stack| {
+            self.clients.get_stack_for_client(&focused).and_then(
+                |stack| {
                     stack
                         .iter()
                         .skip_while(|&&k| k != focused)
                         .skip(1)
                         .next()
                         .cloned()
-                })
+                },
+            )
         });
 
         if let Some(k) = k {
@@ -573,7 +604,9 @@ impl WindowManager {
         {
             Client::new_transient(
                 window,
-                self.xlib.get_window_size(window).unwrap_or((100, 100)),
+                self.xlib
+                    .get_window_size(window)
+                    .unwrap_or((100, 100)),
                 transient_window,
             )
         } else {
@@ -632,7 +665,10 @@ impl WindowManager {
     }
 
     /// ensure event.subwindow refers to a valid client.
-    fn start_move_resize_window(&mut self, event: &XButtonPressedEvent) {
+    fn start_move_resize_window(
+        &mut self,
+        event: &XButtonPressedEvent,
+    ) {
         let window = event.subwindow;
 
         match event.button {
@@ -641,15 +677,16 @@ impl WindowManager {
                     self.arrange_clients();
                 }
 
-                self.move_resize_window = MoveResizeInfo::Move(MoveInfoInner {
-                    window,
-                    starting_cursor_pos: (event.x, event.y),
-                    starting_window_pos: self
-                        .clients
-                        .get(&window)
-                        .unwrap()
-                        .position,
-                });
+                self.move_resize_window =
+                    MoveResizeInfo::Move(MoveInfoInner {
+                        window,
+                        starting_cursor_pos: (event.x, event.y),
+                        starting_window_pos: self
+                            .clients
+                            .get(&window)
+                            .unwrap()
+                            .position,
+                    });
             }
             3 => {
                 if self.clients.set_floating(&window) {
@@ -679,7 +716,10 @@ impl WindowManager {
         }
     }
 
-    fn end_move_resize_window(&mut self, event: &XButtonReleasedEvent) {
+    fn end_move_resize_window(
+        &mut self,
+        event: &XButtonReleasedEvent,
+    ) {
         if event.button == 1 || event.button == 3 {
             self.move_resize_window = MoveResizeInfo::None;
         }
@@ -718,8 +758,14 @@ impl WindowManager {
                 {
                     let size = &mut client.size;
 
-                    size.0 = std::cmp::max(1, info.starting_window_size.0 + x);
-                    size.1 = std::cmp::max(1, info.starting_window_size.1 + y);
+                    size.0 = std::cmp::max(
+                        1,
+                        info.starting_window_size.0 + x,
+                    );
+                    size.1 = std::cmp::max(
+                        1,
+                        info.starting_window_size.1 + y,
+                    );
 
                     self.xlib.resize_client(client);
                 }
@@ -734,10 +780,12 @@ impl WindowManager {
         match event.button {
             1 | 3 => match self.move_resize_window {
                 MoveResizeInfo::None
-                    if self
-                        .xlib
-                        .are_masks_equal(event.state, self.config.mod_key)
-                        && self.clients.contains(&event.subwindow) =>
+                    if self.xlib.are_masks_equal(
+                        event.state,
+                        self.config.mod_key,
+                    ) && self
+                        .clients
+                        .contains(&event.subwindow) =>
                 {
                     self.start_move_resize_window(event)
                 }

src/xlib.rs

@@ -4,14 +4,16 @@ use std::{ffi::CString, rc::Rc};
 
 use x11::xlib::{
     self, AnyButton, AnyKey, AnyModifier, Atom, ButtonPressMask,
-    ButtonReleaseMask, CWEventMask, ControlMask, CurrentTime, EnterWindowMask,
-    FocusChangeMask, LockMask, Mod1Mask, Mod2Mask, Mod3Mask, Mod4Mask,
-    Mod5Mask, PointerMotionMask, PropertyChangeMask, ShiftMask,
-    StructureNotifyMask, SubstructureNotifyMask, SubstructureRedirectMask,
-    Window, XCloseDisplay, XConfigureRequestEvent, XDefaultScreen, XEvent,
-    XGetTransientForHint, XGrabPointer, XInternAtom, XKillClient, XMapWindow,
-    XOpenDisplay, XRaiseWindow, XRootWindow, XSetErrorHandler, XSync,
-    XUngrabButton, XUngrabKey, XUngrabPointer, XWarpPointer, XWindowAttributes,
+    ButtonReleaseMask, CWEventMask, ControlMask, CurrentTime,
+    EnterWindowMask, FocusChangeMask, LockMask, Mod1Mask, Mod2Mask,
+    Mod3Mask, Mod4Mask, Mod5Mask, PointerMotionMask,
+    PropertyChangeMask, ShiftMask, StructureNotifyMask,
+    SubstructureNotifyMask, SubstructureRedirectMask, Window,
+    XCloseDisplay, XConfigureRequestEvent, XDefaultScreen, XEvent,
+    XGetTransientForHint, XGrabPointer, XInternAtom, XKillClient,
+    XMapWindow, XOpenDisplay, XRaiseWindow, XRootWindow,
+    XSetErrorHandler, XSync, XUngrabButton, XUngrabKey,
+    XUngrabPointer, XWarpPointer, XWindowAttributes,
 };
 use xlib::GrabModeAsync;
 
@@ -45,7 +47,11 @@ impl KeyOrButton {
     pub fn key(keycode: i32, modmask: u32) -> Self {
         Self::Key(keycode, modmask)
     }
-    pub fn button(button: u32, modmask: u32, buttonmask: i64) -> Self {
+    pub fn button(
+        button: u32,
+        modmask: u32,
+        buttonmask: i64,
+    ) -> Self {
         Self::Button(button, modmask, buttonmask as u64)
     }
 }
@@ -78,9 +84,10 @@ impl XLib {
 
     pub fn init(&mut self) {
         unsafe {
-            let mut window_attributes =
-                std::mem::MaybeUninit::<xlib::XSetWindowAttributes>::zeroed()
-                    .assume_init();
+            let mut window_attributes = std::mem::MaybeUninit::<
+                xlib::XSetWindowAttributes,
+            >::zeroed()
+            .assume_init();
 
             window_attributes.event_mask = SubstructureRedirectMask
                 | StructureNotifyMask
@@ -117,7 +124,12 @@ impl XLib {
     #[allow(dead_code)]
     fn ungrab_global_keybings(&self, window: Window) {
         unsafe {
-            XUngrabButton(self.dpy(), AnyButton as u32, AnyModifier, window);
+            XUngrabButton(
+                self.dpy(),
+                AnyButton as u32,
+                AnyModifier,
+                window,
+            );
             XUngrabKey(self.dpy(), AnyKey, AnyModifier, window);
         }
     }
@@ -143,10 +155,14 @@ impl XLib {
     pub fn squash_event(&self, event_type: i32) -> XEvent {
         unsafe {
             let mut event =
-                std::mem::MaybeUninit::<xlib::XEvent>::zeroed().assume_init();
+                std::mem::MaybeUninit::<xlib::XEvent>::zeroed()
+                    .assume_init();
 
-            while xlib::XCheckTypedEvent(self.dpy(), event_type, &mut event)
-                != 0
+            while xlib::XCheckTypedEvent(
+                self.dpy(),
+                event_type,
+                &mut event,
+            ) != 0
             {}
 
             event
@@ -156,14 +172,19 @@ impl XLib {
     pub fn next_event(&self) -> XEvent {
         unsafe {
             let mut event =
-                std::mem::MaybeUninit::<xlib::XEvent>::zeroed().assume_init();
+                std::mem::MaybeUninit::<xlib::XEvent>::zeroed()
+                    .assume_init();
             xlib::XNextEvent(self.dpy(), &mut event);
 
             event
         }
     }
 
-    pub fn grab_key_or_button(&self, window: Window, key: &KeyOrButton) {
+    pub fn grab_key_or_button(
+        &self,
+        window: Window,
+        key: &KeyOrButton,
+    ) {
         let numlock_mask = self.get_numlock_mask();
         let modifiers =
             vec![0, LockMask, numlock_mask, LockMask | numlock_mask];
@@ -212,7 +233,8 @@ impl XLib {
                 xlib::CurrentTime,
             );
 
-            let screen = xlib::XDefaultScreenOfDisplay(self.dpy()).as_ref();
+            let screen =
+                xlib::XDefaultScreenOfDisplay(self.dpy()).as_ref();
 
             if let Some(screen) = screen {
                 xlib::XSetWindowBorder(
@@ -248,7 +270,8 @@ impl XLib {
                 xlib::CurrentTime,
             );
 
-            let screen = xlib::XDefaultScreenOfDisplay(self.dpy()).as_ref();
+            let screen =
+                xlib::XDefaultScreenOfDisplay(self.dpy()).as_ref();
 
             if let Some(screen) = screen {
                 xlib::XSetWindowBorder(
@@ -284,8 +307,10 @@ impl XLib {
                 xlib::XConfigureWindow(
                     self.dpy(),
                     client.window,
-                    (xlib::CWY | xlib::CWX | xlib::CWHeight | xlib::CWWidth)
-                        as u32,
+                    (xlib::CWY
+                        | xlib::CWX
+                        | xlib::CWHeight
+                        | xlib::CWWidth) as u32,
                     &mut windowchanges,
                 );
 
@@ -376,14 +401,18 @@ impl XLib {
         }
     }
 
-    pub fn get_window_size(&self, window: Window) -> Option<(i32, i32)> {
+    pub fn get_window_size(
+        &self,
+        window: Window,
+    ) -> Option<(i32, i32)> {
         let mut wa = unsafe {
             std::mem::MaybeUninit::<xlib::XWindowAttributes>::zeroed()
                 .assume_init()
         };
 
         if unsafe {
-            xlib::XGetWindowAttributes(self.dpy(), window, &mut wa) != 0
+            xlib::XGetWindowAttributes(self.dpy(), window, &mut wa)
+                != 0
         } {
             Some((wa.width, wa.height))
         } else {
@@ -401,7 +430,8 @@ impl XLib {
         };
 
         if unsafe {
-            xlib::XGetWindowAttributes(self.dpy(), window, &mut wa) != 0
+            xlib::XGetWindowAttributes(self.dpy(), window, &mut wa)
+                != 0
         } {
             Some(wa)
         } else {
@@ -409,11 +439,18 @@ impl XLib {
         }
     }
 
-    pub fn get_transient_for_window(&self, window: Window) -> Option<Window> {
+    pub fn get_transient_for_window(
+        &self,
+        window: Window,
+    ) -> Option<Window> {
         let mut transient_for: Window = 0;
 
         if unsafe {
-            XGetTransientForHint(self.dpy(), window, &mut transient_for) != 0
+            XGetTransientForHint(
+                self.dpy(),
+                window,
+                &mut transient_for,
+            ) != 0
         } {
             Some(transient_for)
         } else {
@@ -515,13 +552,21 @@ impl XLib {
 
     pub fn dimensions(&self) -> (i32, i32) {
         unsafe {
-            let mut wa =
-                std::mem::MaybeUninit::<xlib::XWindowAttributes>::zeroed()
-                    .assume_init();
+            let mut wa = std::mem::MaybeUninit::<
+                xlib::XWindowAttributes,
+            >::zeroed()
+            .assume_init();
 
-            xlib::XGetWindowAttributes(self.dpy(), self.root, &mut wa);
+            xlib::XGetWindowAttributes(
+                self.dpy(),
+                self.root,
+                &mut wa,
+            );
 
-            info!("Root window dimensions: {}, {}", wa.width, wa.height);
+            info!(
+                "Root window dimensions: {}, {}",
+                wa.width, wa.height
+            );
 
             (wa.width, wa.height)
         }
@@ -547,8 +592,9 @@ impl XLib {
                 self.dpy(),
                 self.root,
                 0,
-                (ButtonPressMask | ButtonReleaseMask | PointerMotionMask)
-                    as u32,
+                (ButtonPressMask
+                    | ButtonReleaseMask
+                    | PointerMotionMask) as u32,
                 GrabModeAsync,
                 GrabModeAsync,
                 0,
@@ -564,7 +610,11 @@ impl XLib {
         }
     }
 
-    pub fn move_cursor(&self, window: Option<Window>, position: (i32, i32)) {
+    pub fn move_cursor(
+        &self,
+        window: Option<Window>,
+        position: (i32, i32),
+    ) {
         unsafe {
             XWarpPointer(
                 self.dpy(),
@@ -580,7 +630,11 @@ impl XLib {
         }
     }
 
-    fn check_for_protocol(&self, client: &Client, proto: xlib::Atom) -> bool {
+    fn check_for_protocol(
+        &self,
+        client: &Client,
+        proto: xlib::Atom,
+    ) -> bool {
         let mut protos: *mut xlib::Atom = null_mut();
         let mut num_protos: i32 = 0;
 
@@ -603,7 +657,11 @@ impl XLib {
         return false;
     }
 
-    fn send_protocol(&self, client: &Client, proto: xlib::Atom) -> bool {
+    fn send_protocol(
+        &self,
+        client: &Client,
+        proto: xlib::Atom,
+    ) -> bool {
         if self.check_for_protocol(client, proto) {
             let mut data = xlib::ClientMessageData::default();
             data.set_long(0, proto as i64);
@@ -723,19 +781,37 @@ impl Atoms {
             Self {
                 protocols: {
                     let name = CString::new("WM_PROTOCOLS").unwrap();
-                    XInternAtom(display.get(), name.as_c_str().as_ptr(), 0)
+                    XInternAtom(
+                        display.get(),
+                        name.as_c_str().as_ptr(),
+                        0,
+                    )
                 },
                 delete_window: {
-                    let name = CString::new("WM_DELETE_WINDOW").unwrap();
-                    XInternAtom(display.get(), name.as_c_str().as_ptr(), 0)
+                    let name =
+                        CString::new("WM_DELETE_WINDOW").unwrap();
+                    XInternAtom(
+                        display.get(),
+                        name.as_c_str().as_ptr(),
+                        0,
+                    )
                 },
                 active_window: {
-                    let name = CString::new("WM_ACTIVE_WINDOW").unwrap();
-                    XInternAtom(display.get(), name.as_c_str().as_ptr(), 0)
+                    let name =
+                        CString::new("WM_ACTIVE_WINDOW").unwrap();
+                    XInternAtom(
+                        display.get(),
+                        name.as_c_str().as_ptr(),
+                        0,
+                    )
                 },
                 take_focus: {
                     let name = CString::new("WM_TAKE_FOCUS").unwrap();
-                    XInternAtom(display.get(), name.as_c_str().as_ptr(), 0)
+                    XInternAtom(
+                        display.get(),
+                        name.as_c_str().as_ptr(),
+                        0,
+                    )
                 },
             }
         }