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.

1 files changed, 120 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
+}