Allow idle time detection on all Wayland desktops HEAD main

Other desktops require C dependencies I don't want to bring in, so
let's leave it at that. Pretty much all of the code was kanged from
the new Iced rewrite.

2 files changed, 468 insertions, 0 deletions

diff --git a/src/helpers/idle.rs b/src/helpers/idle.rs
new file mode 100644
index 0000000..074eba9
--- /dev/null
+++ b/src/helpers/idle.rs
@@ -0,0 +1,120 @@
+// Furtherance - Track your time without being tracked
+// Copyright (C) 2024  Ricky Kresslein <rk@unobserved.io>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+use std::env;
+use std::time::Duration;
+
+#[cfg(target_os = "linux")]
+use {
+    std::path::Path, std::sync::Arc
+};
+
+pub fn get_mac_windows_x11_idle_seconds() -> u64 {
+    0 // unimplemented
+}
+
+pub fn get_idle_time() -> Result<u64, Box<dyn std::error::Error>> {
+    match env::consts::OS {
+        "windows" => Ok(get_mac_windows_x11_idle_seconds()),
+        "macos" => Ok(get_mac_windows_x11_idle_seconds()),
+        #[cfg(target_os = "linux")]
+        "linux" => {
+            if is_wayland() {
+                if is_gnome() {
+                    get_gnome_idle_sync()
+                } else {
+                    get_wayland_idle_sync()
+                }
+            } else if is_x11() {
+                Ok(get_mac_windows_x11_idle_seconds())
+            } else {
+                Ok(0)
+            }
+        }
+        _ => Ok(0),
+    }
+}
+
+#[cfg(target_os = "linux")]
+fn is_wayland() -> bool {
+    if let Ok(_) = env::var("XDG_SESSION_TYPE").map(|v| v == "wayland") {
+        return true;
+    } else if let Ok(display) = env::var("WAYLAND_DISPLAY") {
+        if display.chars().next() == Some('/') {
+            return Path::new(&display).exists();
+        }
+        if let Ok(runtime_dir) = env::var("XDG_RUNTIME_DIR") {
+            return Path::new(
+                &format!("{}/{}", runtime_dir, display)
+            ).exists();
+        }
+    }
+    false
+}
+
+#[cfg(target_os = "linux")]
+fn is_x11() -> bool {
+    x11rb::connect(None).is_ok()
+}
+
+#[cfg(target_os = "linux")]
+fn get_wayland_idle_sync() -> Result<u64, Box<dyn std::error::Error>> {
+    use crate::helpers::wayland_idle;
+
+    wayland_idle::initialize_wayland().unwrap();
+
+    Ok(wayland_idle::get_idle_time())
+}
+
+#[cfg(target_os = "linux")]
+fn get_gnome_idle_sync() -> Result<u64, Box<dyn std::error::Error>> {
+    use dbus::blocking::stdintf::org_freedesktop_dbus::Properties;
+    let c = dbus::blocking::Connection::new_session()?;
+
+    let p = c.with_proxy(
+        "org.gnome.Mutter.IdleMonitor",
+        "/org/gnome/Mutter/IdleMonitor/Core",
+        Duration::from_millis(5000),
+    );
+    let (idle_time,): (u64,) =
+        p.method_call("org.gnome.Mutter.IdleMonitor", "GetIdletime", ())?;
+    Ok(idle_time / 1000)
+}
+
+#[cfg(target_os = "linux")]
+pub fn is_kde() -> bool {
+    if let Ok(desktop) = std::env::var("XDG_CURRENT_DESKTOP") {
+        return desktop.to_uppercase().contains("KDE");
+    }
+    false
+}
+
+#[cfg(target_os = "linux")]
+fn is_gnome() -> bool {
+    if let Ok(xdg_current_desktop) = env::var("XDG_CURRENT_DESKTOP") {
+        if xdg_current_desktop.to_lowercase().contains("gnome") {
+            return true;
+        }
+    }
+
+    if let Ok(gdm_session) = env::var("GDMSESSION") {
+        if gdm_session.to_lowercase().contains("gnome") {
+            return true;
+        }
+    }
+
+    false
+}
diff --git a/src/helpers/wayland_idle.rs b/src/helpers/wayland_idle.rs
new file mode 100644
index 0000000..ae2bce7
--- /dev/null
+++ b/src/helpers/wayland_idle.rs
@@ -0,0 +1,348 @@
+// Furtherance - Track your time without being tracked
+// Copyright (C) 2024  Ricky Kresslein <rk@unobserved.io>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+use std::collections::HashMap;
+use std::sync::atomic::{AtomicBool, Ordering};
+use std::sync::{
+    mpsc::{channel, Receiver, Sender},
+    Arc, Mutex,
+};
+use std::thread;
+use wayland_client::protocol::wl_registry::{self, WlRegistry};
+use wayland_client::protocol::wl_seat::WlSeat;
+use wayland_client::{Connection, Dispatch, QueueHandle};
+use wayland_protocols::ext::idle_notify::v1::client::ext_idle_notification_v1::{
+    self, ExtIdleNotificationV1,
+};
+use wayland_protocols::ext::idle_notify::v1::client::ext_idle_notifier_v1::ExtIdleNotifierV1;
+use wayland_protocols_plasma::idle::client::org_kde_kwin_idle::OrgKdeKwinIdle;
+use wayland_protocols_plasma::idle::client::org_kde_kwin_idle_timeout::{
+    self, OrgKdeKwinIdleTimeout,
+};
+
+struct IdleState {
+    idle_since: Option<std::time::Instant>,
+}
+
+impl IdleState {
+    fn new() -> Self {
+        Self { idle_since: None }
+    }
+}
+
+lazy_static::lazy_static! {
+    static ref IDLE_STATE: Arc<Mutex<IdleState>> = Arc::new(Mutex::new(IdleState::new()));
+    static ref WAYLAND_INITIALIZED: Arc<Mutex<bool>> = Arc::new(Mutex::new(false));
+    static ref MONITOR_RUNNING: Arc<AtomicBool> = Arc::new(AtomicBool::new(false));
+    static ref STOP_SIGNAL: Arc<Mutex<Option<Sender<()>>>> = Arc::new(Mutex::new(None));
+}
+
+enum IdleManager {
+    Kde(OrgKdeKwinIdle),
+    Standard(ExtIdleNotifierV1),
+}
+
+struct WaylandState {
+    idle_state: Arc<Mutex<IdleState>>,
+    seats: HashMap<u32, WlSeat>,
+    idle_manager: Option<IdleManager>,
+}
+
+impl WaylandState {
+    fn new(idle_state: Arc<Mutex<IdleState>>) -> Self {
+        Self {
+            idle_state,
+            seats: HashMap::new(),
+            idle_manager: None,
+        }
+    }
+
+    fn handle_global(
+        &mut self,
+        registry: &WlRegistry,
+        name: u32,
+        interface: String,
+        version: u32,
+        qh: &QueueHandle<Self>,
+    ) {
+        match &interface[..] {
+            "wl_seat" => {
+                let seat = registry.bind::<WlSeat, _, _>(name, version, qh, ());
+                if let Some(idle_manager) = &self.idle_manager {
+                    let timeout_ms = 1000; // 1 second
+                    match idle_manager {
+                        IdleManager::Kde(manager) => {
+                            let _timeout = manager.get_idle_timeout(&seat, timeout_ms, qh, ());
+                        }
+                        IdleManager::Standard(manager) => {
+                            let _notification =
+                                manager.get_idle_notification(timeout_ms, &seat, qh, name);
+                        }
+                    }
+                }
+                self.seats.insert(name, seat);
+            }
+            "org_kde_kwin_idle" => {
+                let idle_manager: OrgKdeKwinIdle = registry.bind(name, version, qh, ());
+                // Set up idle timeouts for existing seats
+                for (_, seat) in &self.seats {
+                    let _timeout = idle_manager.get_idle_timeout(seat, 1000, qh, ());
+                }
+                self.idle_manager = Some(IdleManager::Kde(idle_manager));
+            }
+            "ext_idle_notifier_v1" => {
+                let idle_manager: ExtIdleNotifierV1 = registry.bind(name, version, qh, ());
+                // Set up idle notifications for existing seats
+                for (name, seat) in &self.seats {
+                    let _notification = idle_manager.get_idle_notification(1000, seat, qh, *name);
+                }
+                self.idle_manager = Some(IdleManager::Standard(idle_manager));
+            }
+            _ => {}
+        }
+    }
+}
+
+impl Dispatch<WlRegistry, ()> for WaylandState {
+    fn event(
+        state: &mut Self,
+        registry: &WlRegistry,
+        event: wl_registry::Event,
+        _: &(),
+        _: &Connection,
+        qh: &QueueHandle<Self>,
+    ) {
+        match event {
+            wl_registry::Event::Global {
+                name,
+                interface,
+                version,
+            } => state.handle_global(registry, name, interface, version, qh),
+            _ => {}
+        }
+    }
+}
+
+impl Dispatch<OrgKdeKwinIdleTimeout, ()> for WaylandState {
+    fn event(
+        state: &mut Self,
+        _proxy: &OrgKdeKwinIdleTimeout,
+        event: org_kde_kwin_idle_timeout::Event,
+        _data: &(),
+        _conn: &Connection,
+        _qh: &QueueHandle<Self>,
+    ) {
+        match event {
+            org_kde_kwin_idle_timeout::Event::Idle => {
+                if let Ok(mut state) = state.idle_state.lock() {
+                    state.idle_since = Some(std::time::Instant::now());
+                }
+            }
+            org_kde_kwin_idle_timeout::Event::Resumed => {
+                if let Ok(mut state) = state.idle_state.lock() {
+                    state.idle_since = None;
+                }
+            }
+            _ => {}
+        }
+    }
+}
+
+impl Dispatch<ExtIdleNotificationV1, u32> for WaylandState {
+    fn event(
+        state: &mut Self,
+        _proxy: &ExtIdleNotificationV1,
+        event: ext_idle_notification_v1::Event,
+        _data: &u32,
+        _conn: &Connection,
+        _qh: &QueueHandle<Self>,
+    ) {
+        match event {
+            ext_idle_notification_v1::Event::Idled => {
+                if let Ok(mut state) = state.idle_state.lock() {
+                    state.idle_since = Some(std::time::Instant::now());
+                }
+            }
+            ext_idle_notification_v1::Event::Resumed => {
+                if let Ok(mut state) = state.idle_state.lock() {
+                    state.idle_since = None;
+                }
+            }
+            _ => {}
+        }
+    }
+}
+
+impl Dispatch<WlSeat, ()> for WaylandState {
+    fn event(
+        _state: &mut Self,
+        _proxy: &WlSeat,
+        _event: <WlSeat as wayland_client::Proxy>::Event,
+        _data: &(),
+        _conn: &Connection,
+        _qh: &QueueHandle<Self>,
+    ) {
+    }
+}
+
+impl Dispatch<OrgKdeKwinIdle, ()> for WaylandState {
+    fn event(
+        _state: &mut Self,
+        _proxy: &OrgKdeKwinIdle,
+        _event: <OrgKdeKwinIdle as wayland_client::Proxy>::Event,
+        _data: &(),
+        _conn: &Connection,
+        _qh: &QueueHandle<Self>,
+    ) {
+    }
+}
+
+impl Dispatch<ExtIdleNotifierV1, ()> for WaylandState {
+    fn event(
+        _state: &mut Self,
+        _proxy: &ExtIdleNotifierV1,
+        _event: <ExtIdleNotifierV1 as wayland_client::Proxy>::Event,
+        _data: &(),
+        _conn: &Connection,
+        _qh: &QueueHandle<Self>,
+    ) {
+    }
+}
+
+fn run_wayland_monitor(rx: Receiver<()>) -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
+    let conn = Connection::connect_to_env()?;
+    let mut event_queue = conn.new_event_queue();
+    let qh = event_queue.handle();
+
+    let display = conn.display();
+    display.get_registry(&qh, ());
+
+    let state = WaylandState::new(IDLE_STATE.clone());
+    let mut state = state;
+
+    loop {
+        if !MONITOR_RUNNING.load(Ordering::SeqCst) {
+            break;
+        }
+
+        // Check if we received a stop signal
+        if rx.try_recv().is_ok() {
+            break;
+        }
+
+        event_queue.blocking_dispatch(&mut state)?;
+        thread::sleep(std::time::Duration::from_millis(100));
+    }
+    Ok(())
+}
+
+pub fn initialize_wayland() -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
+    if let Ok(mut initialized) = WAYLAND_INITIALIZED.lock() {
+        if *initialized {
+            return Ok(());
+        }
+
+        MONITOR_RUNNING.store(true, Ordering::SeqCst);
+
+        // Create a channel for stop signaling
+        let (tx, rx) = channel();
+        if let Ok(mut stop_signal) = STOP_SIGNAL.lock() {
+            *stop_signal = Some(tx);
+        }
+
+        thread::spawn(move || {
+            if let Err(e) = run_wayland_monitor(rx) {
+                eprintln!("Wayland monitor error: {}", e);
+            }
+        });
+
+        *initialized = true;
+    }
+    Ok(())
+}
+
+pub fn get_idle_time() -> u64 {
+    if !MONITOR_RUNNING.load(Ordering::SeqCst) {
+        return 0;
+    }
+
+    if let Ok(state) = IDLE_STATE.lock() {
+        if let Some(idle_since) = state.idle_since {
+            idle_since.elapsed().as_secs()
+        } else {
+            0
+        }
+    } else {
+        0
+    }
+}
+
+pub fn start_idle_monitor() -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
+    // Stop any existing monitor and wait for confirmation
+    stop_idle_monitor();
+
+    // Reset idle state
+    if let Ok(mut state) = IDLE_STATE.lock() {
+        state.idle_since = None;
+    }
+
+    if let Ok(mut initialized) = WAYLAND_INITIALIZED.lock() {
+        if !*initialized {
+            MONITOR_RUNNING.store(true, Ordering::SeqCst);
+
+            // Create a channel for stop signaling
+            let (tx, rx) = channel();
+            if let Ok(mut stop_signal) = STOP_SIGNAL.lock() {
+                *stop_signal = Some(tx);
+            }
+
+            thread::spawn(move || {
+                if let Err(e) = run_wayland_monitor(rx) {
+                    eprintln!("Wayland monitor error: {}", e);
+                }
+            });
+
+            *initialized = true;
+        }
+    }
+    Ok(())
+}
+
+pub fn stop_idle_monitor() {
+    MONITOR_RUNNING.store(false, Ordering::SeqCst);
+
+    // Signal the monitor thread to stop
+    if let Ok(stop_signal) = STOP_SIGNAL.lock() {
+        if let Some(tx) = stop_signal.as_ref() {
+            let _ = tx.send(());
+        }
+    }
+
+    // Reset idle state
+    if let Ok(mut state) = IDLE_STATE.lock() {
+        state.idle_since = None;
+    }
+
+    // Reset initialized state
+    if let Ok(mut initialized) = WAYLAND_INITIALIZED.lock() {
+        *initialized = false;
+    }
+
+    // Clear the stop signal
+    if let Ok(mut stop_signal) = STOP_SIGNAL.lock() {
+        *stop_signal = None;
+    }
+}