210 lines
8.9 KiB
Rust
210 lines
8.9 KiB
Rust
#![feature(iter_zip)]
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mod dock_item;
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mod dock_object;
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mod utils;
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mod window;
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use crate::utils::BoxedSearchResults;
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use async_io::Timer;
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use futures::StreamExt;
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use gdk4::Display;
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use gio::DesktopAppInfo;
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use gtk::gio;
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use gtk::glib;
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use gtk::prelude::*;
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use gtk::Application;
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use gtk4 as gtk;
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use gtk4::CssProvider;
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use gtk4::StyleContext;
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use once_cell::sync::OnceCell;
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use pop_launcher::SearchResult;
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use pop_launcher_service::IpcClient;
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use postage::mpsc::Sender;
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use postage::prelude::*;
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use std::collections::BTreeMap;
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use std::time::Duration;
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use x11rb::rust_connection::RustConnection;
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use self::dock_object::DockObject;
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use self::window::Window;
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const NUM_LAUNCHER_ITEMS: u8 = 10;
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static TX: OnceCell<Sender<Event>> = OnceCell::new();
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static X11_CONN: OnceCell<RustConnection> = OnceCell::new();
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pub enum Event {
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Response(pop_launcher::Response),
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RefreshFromCache,
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Search(String),
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Activate(u32),
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}
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fn spawn_launcher(tx: Sender<Event>) -> IpcClient {
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let (launcher, responses) =
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pop_launcher_service::IpcClient::new().expect("failed to connect to launcher service");
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let mut sender = tx.clone();
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glib::MainContext::default().spawn_local(async move {
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futures::pin_mut!(responses);
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while let Some(event) = responses.next().await {
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let _ = sender.send(Event::Response(event)).await;
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}
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});
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// TODO listen for signal indicating change from dock service...
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let mut sender = tx.clone();
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glib::MainContext::default().spawn_local(async move {
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loop {
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let _ = sender.send(Event::Search(String::new())).await;
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Timer::after(Duration::from_secs(1)).await;
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}
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});
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launcher
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}
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fn setup_shortcuts(app: &Application) {
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//quit shortcut
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app.set_accels_for_action("win.quit", &["<primary>W", "Escape"]);
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//launch shortcuts
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for i in 1..NUM_LAUNCHER_ITEMS {
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app.set_accels_for_action(&format!("win.launch{}", i), &[&format!("<primary>{}", i)]);
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}
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}
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fn load_css() {
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// Load the css file and add it to the provider
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let provider = CssProvider::new();
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provider.load_from_data(include_bytes!("style.css"));
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// Add the provider to the default screen
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StyleContext::add_provider_for_display(
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&Display::default().expect("Error initializing GTK CSS provider."),
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&provider,
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gtk::STYLE_PROVIDER_PRIORITY_APPLICATION,
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);
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}
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fn main() {
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assert!(utils::BoxedSearchResults::static_type().is_valid());
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let app = gtk::Application::builder()
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.application_id("com.cosmic.Launcher")
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.build();
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app.connect_startup(|app| {
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setup_shortcuts(app);
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load_css()
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});
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// TODO investigate multiple signals to connect_activate
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// crashes when called twice bc of singleton
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app.connect_activate(move |app| {
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// Seems that over a long period of time, this might be called multiple times
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// The global variables should be initialized outside this closure
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let (tx, mut rx) = postage::mpsc::channel(1);
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let mut launcher = spawn_launcher(tx.clone());
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if TX.set(tx).is_err() {
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println!("failed to set global Sender. Exiting");
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std::process::exit(1);
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};
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let (conn, _screen_num) = x11rb::connect(None).expect("Failed to connect to X");
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if X11_CONN.set(conn).is_err() {
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println!("failed to set X11_CONN. Exiting");
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std::process::exit(1);
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};
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let window = Window::new(app);
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window.show();
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let cached_results: Vec<SearchResult> = vec![];
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glib::MainContext::default().spawn_local(async move {
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futures::pin_mut!(cached_results);
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while let Some(event) = rx.recv().await {
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match event {
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Event::Search(search) => {
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let _ = launcher.send(pop_launcher::Request::Search(search)).await;
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}
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Event::Activate(index) => {
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let _ = launcher.send(pop_launcher::Request::Activate(index)).await;
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}
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Event::RefreshFromCache => {
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//TODO refresh the model from cached_results (required after DnD for example)
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}
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Event::Response(event) => {
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// TODO investigate why polled results are out of date after launching a new window
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if let pop_launcher::Response::Update(mut results) = event {
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// sort to make comparison with cache easier
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let mut cached_results = cached_results.as_mut();
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results.sort_by(|a, b| a.name.cmp(&b.name));
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dbg!(&results);
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dbg!(&cached_results);
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// check if cache equals the new polled results
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// skip if equal
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if cached_results.len() == results.len() && results.iter().zip(cached_results.iter()).fold(0, |acc, z: (&SearchResult, &SearchResult)| {
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let (a, b) = z;
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if a.name == b.name {acc + 1} else {acc}
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}) == cached_results.len() {
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continue // skip this update
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}
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println!("updating active apps");
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// build active app stacks for each app
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let stack_active = results.iter().fold(BTreeMap::new(), |mut acc: BTreeMap<String, BoxedSearchResults>, elem| {
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if let Some(v) = acc.get_mut(&elem.description) {
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v.0.push(elem.clone());
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} else {
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acc.insert(elem.description.clone(), BoxedSearchResults(vec![elem.clone()]));
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}
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acc
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});
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let mut stack_active: Vec<BoxedSearchResults> = stack_active.into_values().collect();
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// update active app stacks for saved apps into the saved app model
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// then put the rest in the active app model (which doesn't include saved apps)
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let saved_app_model = window.saved_app_model();
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let mut i: u32 = 0;
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while let Some(item) = saved_app_model.item(i) {
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if let Ok(dock_obj) = item.downcast::<DockObject>() {
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if let Ok(Some(cur_app_info)) = dock_obj.property("appinfo").expect("property appinfo missing from DockObject").get::<Option<DesktopAppInfo>>() {
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if let Some((i, s)) = stack_active.iter().enumerate().find(|(_i, s)| s.0[0].description == cur_app_info.name()) {
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println!("found active saved app {} at {}", s.0[0].name, i);
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let active = stack_active.remove(i);
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dock_obj.set_property("active", active.to_value()).expect("failed to update dock active apps");
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saved_app_model.items_changed(i.try_into().unwrap(), 0, 0);
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}
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}
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}
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i += 1;
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}
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let active_app_model = window.active_app_model();
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let model_len = active_app_model.n_items();
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let new_results: Vec<glib::Object> = stack_active
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.into_iter()
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.map(|v| DockObject::from_search_results(v).upcast())
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.collect();
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active_app_model.splice(0, model_len, &new_results[..]);
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cached_results.splice(.., results);
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}
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else if let pop_launcher::Response::DesktopEntry {
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path,
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gpu_preference: _gpu_preference, // TODO use GPU preference when launching app
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} = event
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{
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let app_info =
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DesktopAppInfo::new(&path.file_name().expect("desktop entry path needs to be a valid filename").to_string_lossy())
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.expect("failed to create a Desktop App info for launching the application.");
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app_info
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.launch(&[], Some(&window.display().app_launch_context())).expect("failed to launch the application.");
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}
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}
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}
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}
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})
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});
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app.run();
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}
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