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-rw-r--r--src/atoms.rs2
-rw-r--r--src/clients.rs127
-rw-r--r--src/cursors.rs3
-rw-r--r--src/error.rs12
-rw-r--r--src/focus.rs8
-rw-r--r--src/keys.rs11
-rw-r--r--src/main.rs53
7 files changed, 124 insertions, 92 deletions
diff --git a/src/atoms.rs b/src/atoms.rs
index 4dfcf47..5db75da 100644
--- a/src/atoms.rs
+++ b/src/atoms.rs
@@ -5,7 +5,7 @@ use xcb::Connection;
pub struct InternedAtoms {}
impl InternedAtoms {
- pub fn new_with(conn: &Connection) -> Result<Self> {
+ pub fn new_with(_conn: &Connection) -> Result<Self> {
// TODO: intern atoms
// utf8string = XInternAtom(dpy, "UTF8_STRING", False);
diff --git a/src/clients.rs b/src/clients.rs
index 6a3d71c..341f73c 100644
--- a/src/clients.rs
+++ b/src/clients.rs
@@ -9,57 +9,8 @@ use xcb::{
use crate::{error::*, WM};
-#[derive(Debug, Default)]
-pub struct ClientList(Vec<MonitorInfo>);
-
-impl ClientList {
- /// Set the new amount of screens, moving clients away if necessary
- pub fn truncate_screens(&mut self, new_size: usize) {
- // hack: double borrow stuff
- let mut moved_clients = vec![];
- for old in self.0.drain(new_size - self.0.len()..self.0.len()) {
- moved_clients.extend(old.clients.into_iter());
- }
- self.0[0].clients.extend(moved_clients.into_iter());
- }
-
- pub fn set_screen_info(&mut self, i: usize, info: ScreenInfo) {
- while i >= self.0.len() {
- self.0.push(MonitorInfo::default())
- }
- self.0[i].screen_info = info;
- }
-
- pub fn len(&self) -> usize {
- self.0.len()
- }
-}
-
-#[derive(Debug)]
-pub struct MonitorInfo {
- clients: Vec<Client>,
- screen_info: ScreenInfo,
-}
-
-impl Default for MonitorInfo {
- fn default() -> Self {
- Self {
- clients: vec![],
- screen_info: ScreenInfo {
- x_org: 0,
- y_org: 0,
- width: 0,
- height: 0,
- },
- }
- }
-}
-
-#[derive(Debug)]
-pub struct Client {}
-
impl WM<'_> {
- /// Update the client list's recorded monitors and monitor sizes
+ /// Update the client state's recorded monitors and monitor sizes
pub(crate) fn update_geometry(&mut self) -> Result<()> {
if self
.conn
@@ -71,17 +22,17 @@ impl WM<'_> {
.wait_for_reply(self.conn.send_request(&xinerama::QueryScreens {}))?;
// Monitor removed, move its clients away
- if reply.screen_info().len() > self.clients.len() {
+ if reply.screen_info().len() > self.clients.monitor_count() {
self.clients.truncate_screens(reply.screen_info().len());
}
// Update screen info & add new client lists if needed
for (i, monitor) in reply.screen_info().iter().enumerate() {
- self.clients.set_screen_info(i, monitor.clone());
+ self.clients.set_screen_info(i, *monitor);
}
} else {
// Only one screen
- if self.clients.len() > 1 {
+ if self.clients.monitor_count() > 1 {
self.clients.truncate_screens(1);
}
@@ -106,19 +57,79 @@ impl WM<'_> {
Ok(())
}
- pub(crate) fn handle_configure_request(&mut self, e: ConfigureRequestEvent) -> Result<()> {
+ pub(crate) fn handle_configure_request(&mut self, _e: ConfigureRequestEvent) -> Result<()> {
todo!()
}
- pub(crate) fn handle_configure_notify(&mut self, e: ConfigureNotifyEvent) -> Result<()> {
+ pub(crate) fn handle_configure_notify(&mut self, _e: ConfigureNotifyEvent) -> Result<()> {
todo!()
}
- pub(crate) fn handle_destroy_notify(&mut self, e: DestroyNotifyEvent) -> Result<()> {
+ pub(crate) fn handle_destroy_notify(&mut self, _e: DestroyNotifyEvent) -> Result<()> {
todo!()
}
- pub(crate) fn handle_map_request(&mut self, e: MapRequestEvent) -> Result<()> {
+ pub(crate) fn handle_map_request(&mut self, _e: MapRequestEvent) -> Result<()> {
todo!()
}
- pub(crate) fn handle_unmap_notify(&mut self, e: UnmapNotifyEvent) -> Result<()> {
+ pub(crate) fn handle_unmap_notify(&mut self, _e: UnmapNotifyEvent) -> Result<()> {
todo!()
}
}
+
+/// Holds state related to the window manager's clients
+/// This contains a list of clients per monitor, alongside info on that monitor's screen size.
+#[derive(Debug, Default)]
+pub struct ClientState(Vec<MonitorInfo>);
+
+/// Info stored for a single monitor
+#[derive(Debug)]
+pub struct MonitorInfo {
+ /// Clients attached to that monitor
+ clients: Vec<Client>,
+
+ /// The monitor's geometry
+ screen_info: ScreenInfo,
+}
+
+/// Information about a single client / window
+#[derive(Debug)]
+pub struct Client {
+ // TODO
+}
+
+impl ClientState {
+ /// Set the new amount of screens, moving clients away if necessary
+ pub fn truncate_screens(&mut self, new_size: usize) {
+ // hack: double borrow stuff
+ let mut moved_clients = vec![];
+ for old in self.0.drain(new_size - self.0.len()..self.0.len()) {
+ moved_clients.extend(old.clients.into_iter());
+ }
+ self.0[0].clients.extend(moved_clients);
+ }
+
+ /// Set the info for the given screen, resizing the monitor list if necessary.
+ pub fn set_screen_info(&mut self, i: usize, info: ScreenInfo) {
+ while i >= self.0.len() {
+ self.0.push(MonitorInfo::default())
+ }
+ self.0[i].screen_info = info;
+ }
+
+ /// Get the amount of monitors this state is currently aware of
+ pub fn monitor_count(&self) -> usize {
+ self.0.len()
+ }
+}
+
+impl Default for MonitorInfo {
+ fn default() -> Self {
+ Self {
+ clients: vec![],
+ screen_info: ScreenInfo {
+ x_org: 0,
+ y_org: 0,
+ width: 0,
+ height: 0,
+ },
+ }
+ }
+}
diff --git a/src/cursors.rs b/src/cursors.rs
index 2cb8f0e..3153288 100644
--- a/src/cursors.rs
+++ b/src/cursors.rs
@@ -7,8 +7,10 @@ use xcb::{
// https://tronche.com/gui/x/xlib/appendix/b/
const XC_LEFT_PTR: u16 = 68;
+/// Caches X11 cursor objects
#[derive(Debug)]
pub struct Cursors {
+ #[allow(unused)] // Needs to be kept around since the cursors depend on it
font: Font,
pub normal: Cursor,
@@ -16,6 +18,7 @@ pub struct Cursors {
}
impl Cursors {
+ /// Load default cursors using the given connection.
pub fn new_with(conn: &Connection) -> Result<Self> {
// Open cursor font
let font = conn.generate_id();
diff --git a/src/error.rs b/src/error.rs
index e12ae2c..3086204 100644
--- a/src/error.rs
+++ b/src/error.rs
@@ -1,7 +1,9 @@
use thiserror::Error;
+/// The Result type used throughout
pub type Result<T, E = Error> = std::result::Result<T, E>;
+/// All errors that can be encountered when running
#[derive(Debug, Error)]
pub enum Error {
#[error("xcb returned screen that doesn't exist")]
@@ -10,12 +12,12 @@ pub enum Error {
#[error("other wm is running")]
OtherWMRunning,
+ #[error("generic xcb error: {0}")]
+ Xcb(#[from] xcb::Error),
+
#[error("connection error: {0}")]
- ConnectionError(#[from] xcb::ConnError),
+ Connection(#[from] xcb::ConnError),
#[error("protocol error: {0}")]
- ProtocolError(#[from] xcb::ProtocolError),
-
- #[error("generic xcb error: {0}")]
- XCBError(#[from] xcb::Error),
+ Protocol(#[from] xcb::ProtocolError),
}
diff --git a/src/focus.rs b/src/focus.rs
index 5fec53f..ea4f021 100644
--- a/src/focus.rs
+++ b/src/focus.rs
@@ -1,19 +1,19 @@
-use xcb::x::{self, EnterNotifyEvent, FocusInEvent, MotionNotifyEvent};
+use xcb::x::{EnterNotifyEvent, FocusInEvent, MotionNotifyEvent};
use crate::{error::*, WM};
impl WM<'_> {
- pub(crate) fn handle_enter_notify(&self, e: EnterNotifyEvent) -> Result<()> {
+ pub(crate) fn handle_enter_notify(&self, _e: EnterNotifyEvent) -> Result<()> {
// todo!()
Ok(())
}
- pub(crate) fn handle_focus_in(&self, e: FocusInEvent) -> Result<()> {
+ pub(crate) fn handle_focus_in(&self, _e: FocusInEvent) -> Result<()> {
// todo!()
Ok(())
}
- pub(crate) fn handle_motion_notify(&self, e: MotionNotifyEvent) -> Result<()> {
+ pub(crate) fn handle_motion_notify(&self, _e: MotionNotifyEvent) -> Result<()> {
// todo!()
Ok(())
}
diff --git a/src/keys.rs b/src/keys.rs
index 7e3296f..7e94944 100644
--- a/src/keys.rs
+++ b/src/keys.rs
@@ -36,7 +36,7 @@ impl WM<'_> {
/// Grab all keys specified by [`self::KEYBINDS`], ensuring we get events for them.
pub(crate) fn grab_keys(&mut self) -> Result<()> {
// Refresh keyboard state
- self.keyboard_state = KeyboardState::new_with(&self.conn)?;
+ self.keyboard_state = KeyboardInfo::new_with(self.conn)?;
// Ungrab all keys
self.conn.send_request(&UngrabKey {
@@ -77,14 +77,14 @@ impl WM<'_> {
}
/// Cached information about our keyboard layout.
-pub struct KeyboardState {
+pub struct KeyboardInfo {
min_keycode: RawKeyCode,
max_keycode: RawKeyCode,
numlock_mask: ModMask,
mapping: GetKeyboardMappingReply,
}
-impl KeyboardState {
+impl KeyboardInfo {
/// Query information about the keyboard layout from the given connection.
pub fn new_with(conn: &Connection) -> Result<Self> {
let min_keycode = conn.get_setup().min_keycode();
@@ -107,8 +107,7 @@ impl KeyboardState {
let keypermod = mod_map.keycodes().len() / 8;
for i in 0..8 {
for j in 0..keypermod {
- if mod_map.keycodes()[(i * keypermod + j) as usize] as u32 == numlock_keycode.raw()
- {
+ if mod_map.keycodes()[i * keypermod + j] as u32 == numlock_keycode.raw() {
this.numlock_mask =
ModMask::from_bits(1 << i).expect("x11 has unrecognised modifier");
}
@@ -152,7 +151,7 @@ impl KeyboardState {
}
}
- return Ok(KeyCode::new(0));
+ Ok(KeyCode::new(0))
}
/// Lookup the keysym in the given column for the given keycode
diff --git a/src/main.rs b/src/main.rs
index f99e19b..6559ad7 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,8 +1,8 @@
use atoms::InternedAtoms;
-use clients::ClientList;
+use clients::ClientState;
use cursors::Cursors;
use error::*;
-use keys::KeyboardState;
+use keys::KeyboardInfo;
use xcb::{
x::{self, ChangeWindowAttributes, PropertyNotifyEvent, Window},
Connection, Event, Extension,
@@ -16,13 +16,10 @@ mod focus;
mod keys;
fn main() -> Result<()> {
- // todo: cli stuff
- let display_name = ":1";
-
cleanup_process_children();
let (conn, screen_num) =
- Connection::connect_with_extensions(Some(display_name), &[], &[Extension::Xinerama])?;
+ Connection::connect_with_extensions(None, &[], &[Extension::Xinerama])?;
let mut wm = WM::new(&conn, screen_num)?;
wm.event_loop()?;
@@ -30,20 +27,35 @@ fn main() -> Result<()> {
Ok(())
}
+/// The window manager's state
struct WM<'a> {
+ /// The open connection to an X server
conn: &'a Connection,
+
+ /// The 'screen' number on the X server
+ /// Note this isn't what you think it is on multi-monitor setups
screen_num: i32,
+ /// The root window
root: Window,
- clients: ClientList,
+ /// WM client state
+ clients: ClientState,
+
+ /// Cached cursors
cursors: Cursors,
+
+ /// Cached atoms
atoms: InternedAtoms,
- keyboard_state: KeyboardState,
+
+ /// Cached keyboard layout information
+ keyboard_state: KeyboardInfo,
}
impl WM<'_> {
- fn new<'a>(conn: &'a Connection, screen_num: i32) -> Result<WM<'a>> {
+ /// Prepare the window manager to run on the given connection and screen number.
+ /// This will fail if another WM is running.
+ fn new(conn: &'_ Connection, screen_num: i32) -> Result<WM<'_>> {
// Fetch root window
let setup = conn.get_setup();
let screen = setup
@@ -64,7 +76,7 @@ impl WM<'_> {
Ok(WM {
atoms: InternedAtoms::new_with(conn)?,
cursors: Cursors::new_with(conn)?,
- keyboard_state: KeyboardState::new_with(conn)?,
+ keyboard_state: KeyboardInfo::new_with(conn)?,
clients: Default::default(),
conn,
screen_num,
@@ -72,8 +84,9 @@ impl WM<'_> {
})
}
+ /// Set the correct properties on the root window
fn setup_root(&mut self) -> Result<()> {
- // TODO: set wm properties
+ // TODO: Set EHWM properties on root window
self.conn
.check_request(self.conn.send_request_checked(&ChangeWindowAttributes {
window: self.root,
@@ -100,42 +113,46 @@ impl WM<'_> {
}
fn event_loop(&mut self) -> Result<()> {
+ // Perform setup
self.update_geometry()?;
self.setup_root()?;
loop {
match self.conn.wait_for_event()? {
- // todo: keybinding related stuff
+ // See keys.rs
Event::X(x::Event::KeyPress(e)) => self.handle_key_press(e)?,
Event::X(x::Event::MappingNotify(e)) => self.handle_mapping_notify(e)?,
- // todo: windows coming and going
+ // See clients.rs
Event::X(x::Event::ConfigureRequest(e)) => self.handle_configure_request(e)?,
Event::X(x::Event::ConfigureNotify(e)) => self.handle_configure_notify(e)?,
Event::X(x::Event::DestroyNotify(e)) => self.handle_destroy_notify(e)?,
Event::X(x::Event::MapRequest(e)) => self.handle_map_request(e)?,
Event::X(x::Event::UnmapNotify(e)) => self.handle_unmap_notify(e)?,
- // todo: focus stuff
+ // See focus.rs
Event::X(x::Event::EnterNotify(e)) => self.handle_enter_notify(e)?,
Event::X(x::Event::FocusIn(e)) => self.handle_focus_in(e)?,
Event::X(x::Event::MotionNotify(e)) => self.handle_motion_notify(e)?,
- // todo: other
+ // See below
Event::X(x::Event::PropertyNotify(e)) => self.handle_property_notify(e)?,
_ => {}
};
}
}
- fn handle_property_notify(&self, e: PropertyNotifyEvent) -> Result<()> {
+ /// Handle a property notify event, by doing *todo*
+ fn handle_property_notify(&self, _e: PropertyNotifyEvent) -> Result<()> {
todo!()
}
}
+/// Cleanup this process' children and set some flags.
+/// This is necessary when used with `startx`
fn cleanup_process_children() {
- // todo: dont transform children into zombies when they terminate
- // todo: cleanup zombies
+ // TODO: dont transform children into zombies when they terminate
+ // TODO: cleanup zombies
}
impl<'a> std::fmt::Debug for WM<'a> {
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