libcosmic-yoda/examples/launcher/main.rs
2021-12-31 14:58:26 -05:00

137 lines
4.7 KiB
Rust

use gdk4::Display;
use gio::DesktopAppInfo;
use gtk4::gio;
use gtk4::glib;
use gtk4::prelude::*;
use gtk4::Application;
use gtk4::CssProvider;
use gtk4::StyleContext;
use once_cell::sync::OnceCell;
use pop_launcher_service::IpcClient;
use postage::mpsc::Sender;
use postage::prelude::*;
use x11rb::rust_connection::RustConnection;
use crate::utils::BoxedSearchResult;
use self::search_result_object::SearchResultObject;
use self::window::Window;
mod search_result_object;
mod search_result_row;
mod utils;
mod window;
const NUM_LAUNCHER_ITEMS: u8 = 10;
static TX: OnceCell<Sender<Event>> = OnceCell::new();
static X11_CONN: OnceCell<RustConnection> = OnceCell::new();
pub enum Event {
Response(pop_launcher::Response),
Search(String),
Activate(u32),
}
fn spawn_launcher(mut tx: Sender<Event>) -> IpcClient {
let (launcher, responses) =
pop_launcher_service::IpcClient::new().expect("failed to connect to launcher service");
glib::MainContext::default().spawn_local(async move {
use futures::StreamExt;
futures::pin_mut!(responses);
while let Some(event) = responses.next().await {
let _ = tx.send(Event::Response(event)).await;
}
});
launcher
}
fn setup_shortcuts(app: &Application) {
//quit shortcut
app.set_accels_for_action("win.quit", &["<primary>W", "Escape"]);
//launch shortcuts
for i in 1..NUM_LAUNCHER_ITEMS {
app.set_accels_for_action(&format!("win.launch{}", i), &[&format!("<primary>{}", i)]);
}
}
fn load_css() {
// Load the css file and add it to the provider
let provider = CssProvider::new();
provider.load_from_data(include_bytes!("style.css"));
// Add the provider to the default screen
StyleContext::add_provider_for_display(
&Display::default().expect("Error initializing GTK CSS provider."),
&provider,
gtk4::STYLE_PROVIDER_PRIORITY_APPLICATION,
);
}
fn main() {
let app = gtk4::Application::builder()
.application_id("com.cosmic.Launcher")
.build();
app.connect_startup(|app| {
setup_shortcuts(app);
load_css()
});
app.connect_activate(move |app| {
let (tx, mut rx) = postage::mpsc::channel(1);
let mut launcher = spawn_launcher(tx.clone());
if TX.set(tx).is_err() {
println!("failed to set global Sender. Exiting");
std::process::exit(1);
};
let (conn, _screen_num) = x11rb::connect(None).expect("Failed to connect to X");
if X11_CONN.set(conn).is_err() {
println!("failed to set X11_CONN. Exiting");
std::process::exit(1);
};
let window = Window::new(app);
window.show();
glib::MainContext::default().spawn_local(async move {
while let Some(event) = rx.recv().await {
match event {
Event::Search(search) => {
let _ = launcher.send(pop_launcher::Request::Search(search)).await;
}
Event::Activate(index) => {
let _ = launcher.send(pop_launcher::Request::Activate(index)).await;
}
Event::Response(event) => {
if let pop_launcher::Response::Update(results) = event {
let model = window.model();
let model_len = model.n_items();
dbg!(&results);
let new_results: Vec<glib::Object> = results
// [0..std::cmp::min(results.len(), NUM_LAUNCHER_ITEMS.into())]
.into_iter()
.map(|result| SearchResultObject::new(&BoxedSearchResult(Some(result))).upcast())
.collect();
model.splice(0, model_len, &new_results[..]);
} else if let pop_launcher::Response::DesktopEntry {
path,
gpu_preference: _gpu_preference, // TODO use GPU preference when launching app
} = event
{
let app_info =
DesktopAppInfo::new(&path.file_name().expect("desktop entry path needs to be a valid filename").to_string_lossy())
.expect("failed to create a Desktop App info for launching the application.");
app_info
.launch(&[], Some(&window.display().app_launch_context())).expect("failed to launch the application.");
}
}
}
}
})
});
app.run();
}