117 lines
3.5 KiB
Rust

// ABOUTME: Entry point for Moongreet — greetd greeter for Wayland.
// ABOUTME: Sets up GTK Application, Layer Shell, CSS, and multi-monitor windows.
mod config;
mod greeter;
mod i18n;
mod ipc;
mod power;
mod sessions;
mod users;
use gdk4 as gdk;
use gtk4::prelude::*;
use gtk4::{self as gtk, gio};
use gtk4_layer_shell::LayerShell;
use std::path::PathBuf;
fn load_css(display: &gdk::Display) {
let css_provider = gtk::CssProvider::new();
css_provider.load_from_resource("/dev/moonarch/moongreet/style.css");
gtk::style_context_add_provider_for_display(
display,
&css_provider,
gtk::STYLE_PROVIDER_PRIORITY_APPLICATION,
);
}
fn setup_layer_shell(window: &gtk::ApplicationWindow, keyboard: bool) {
window.init_layer_shell();
window.set_layer(gtk4_layer_shell::Layer::Top);
window.set_exclusive_zone(-1);
if keyboard {
window.set_keyboard_mode(gtk4_layer_shell::KeyboardMode::Exclusive);
}
// Anchor to all edges for fullscreen
window.set_anchor(gtk4_layer_shell::Edge::Top, true);
window.set_anchor(gtk4_layer_shell::Edge::Bottom, true);
window.set_anchor(gtk4_layer_shell::Edge::Left, true);
window.set_anchor(gtk4_layer_shell::Edge::Right, true);
}
fn activate(app: &gtk::Application) {
let display = match gdk::Display::default() {
Some(d) => d,
None => {
log::error!("No display available — cannot start greeter UI");
return;
}
};
load_css(&display);
// Load config and resolve wallpaper
let config = config::load_config(None);
let bg_path = config::resolve_background_path(&config);
let use_layer_shell = std::env::var("MOONGREET_NO_LAYER_SHELL").is_err();
// Main greeter window (login UI) — compositor picks focused monitor
let greeter_window = greeter::create_greeter_window(&bg_path, &config, app);
if use_layer_shell {
setup_layer_shell(&greeter_window, true);
}
greeter_window.present();
// Wallpaper-only windows on all monitors (only with layer shell)
if use_layer_shell {
let monitors = display.monitors();
for i in 0..monitors.n_items() {
if let Some(monitor) = monitors
.item(i)
.and_then(|obj| obj.downcast::<gdk::Monitor>().ok())
{
let wallpaper = greeter::create_wallpaper_window(&bg_path, app);
setup_layer_shell(&wallpaper, false);
wallpaper.set_monitor(Some(&monitor));
wallpaper.present();
}
}
}
}
fn setup_logging() {
let mut builder = env_logger::Builder::from_default_env();
builder.filter_level(log::LevelFilter::Info);
// Try file logging to /var/cache/moongreet/ — fall back to stderr
let log_dir = PathBuf::from("/var/cache/moongreet");
if log_dir.is_dir() {
let log_file = log_dir.join("moongreet.log");
if let Ok(file) = std::fs::OpenOptions::new()
.create(true)
.append(true)
.open(&log_file)
{
builder.target(env_logger::Target::Pipe(Box::new(file)));
}
}
builder.init();
}
fn main() {
setup_logging();
log::info!("Moongreet starting");
// Register compiled GResources
gio::resources_register_include!("moongreet.gresource").expect("Failed to register resources");
let app = gtk::Application::builder()
.application_id("dev.moonarch.moongreet")
.build();
app.connect_activate(activate);
app.run();
}