508 lines
16 KiB
Rust
508 lines
16 KiB
Rust
use std::cmp::max;
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use std::collections::VecDeque;
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use std::io::{Read, Write};
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use std::os::unix::io::AsRawFd;
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use std::sync::mpsc::{channel, Sender};
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use std::sync::{Arc, Mutex};
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use std::time::Instant;
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use nix::poll::{poll, PollFd, PollFlags};
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use os_pipe::pipe;
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use chrono::Local;
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use smithay_client_toolkit::keyboard::{
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keysyms, map_keyboard_auto_with_repeat, Event as KbEvent, KeyRepeatKind, KeyState,
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};
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use smithay_client_toolkit::utils::DoubleMemPool;
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use wayland_client::protocol::{wl_compositor, wl_pointer, wl_shm, wl_surface};
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use wayland_client::{Display, EventQueue, GlobalEvent, GlobalManager, NewProxy};
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use wayland_protocols::wlr::unstable::layer_shell::v1::client::{
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zwlr_layer_shell_v1, zwlr_layer_surface_v1,
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};
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mod backlight;
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mod battery;
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mod buffer;
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mod calendar;
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mod clock;
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mod color;
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mod draw;
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mod launcher;
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mod module;
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mod sound;
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use crate::backlight::Backlight;
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use crate::battery::UpowerBattery;
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use crate::buffer::Buffer;
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use crate::calendar::Calendar;
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use crate::clock::Clock;
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use crate::color::Color;
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use crate::launcher::Launcher;
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use crate::module::{Input, Module};
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use crate::sound::PulseAudio;
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enum Cmd {
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Exit,
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Draw,
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MouseInput { pos: (u32, u32), input: Input },
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KeyboardInput { input: Input },
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}
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struct App {
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pools: DoubleMemPool,
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display: Display,
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event_queue: EventQueue,
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surface: wl_surface::WlSurface,
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cmd_queue: Arc<Mutex<VecDeque<Cmd>>>,
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dimensions: (u32, u32),
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modules: Vec<Module>,
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}
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impl App {
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fn redraw(&mut self, force: bool) -> Result<(), ::std::io::Error> {
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let time = Local::now();
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let pool = match self.pools.pool() {
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Some(pool) => pool,
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None => return Ok(()),
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};
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let (buf_x, buf_y) = self.dimensions;
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let bg = Color::new(0.0, 0.0, 0.0, 0.9);
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// resize the pool if relevant
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pool.resize((4 * buf_x * buf_y) as usize)
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.expect("Failed to resize the memory pool.");
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let mmap = pool.mmap();
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let mut buf = Buffer::new(mmap, self.dimensions);
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let mut damage = vec![];
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{
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let mut margin_buf = buf.subdimensions((20, 20, buf_x - 40, buf_y - 40))?;
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for module in self.modules.iter() {
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if module.update(&time, force)? {
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let mut b = &mut margin_buf.subdimensions(module.get_bounds())?;
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let mut d = module.draw(&mut b, &bg, &time)?;
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damage.append(&mut d);
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}
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}
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}
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mmap.flush().unwrap();
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if damage.len() == 0 {
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// Nothing to do
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return Ok(());
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}
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// get a buffer and attach it
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let new_buffer = pool.buffer(
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0,
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buf_x as i32,
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buf_y as i32,
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4 * buf_x as i32,
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wl_shm::Format::Argb8888,
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);
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self.surface.attach(Some(&new_buffer), 0, 0);
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for d in damage {
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self.surface.damage(d.0, d.1, d.2, d.3);
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}
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self.surface.commit();
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Ok(())
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}
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fn cmd_queue(&self) -> Arc<Mutex<VecDeque<Cmd>>> {
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self.cmd_queue.clone()
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}
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fn flush_display(&mut self) {
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self.display.flush().expect("unable to flush display");
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}
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fn event_queue(&mut self) -> &mut EventQueue {
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&mut self.event_queue
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}
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fn wipe(&mut self) {
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let pool = match self.pools.pool() {
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Some(pool) => pool,
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None => return,
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};
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pool.resize((4 * self.dimensions.0 * self.dimensions.1) as usize)
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.expect("Failed to resize the memory pool.");
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let mmap = pool.mmap();
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let mut buf = Buffer::new(mmap, self.dimensions);
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let bg = Color::new(0.0, 0.0, 0.0, 0.9);
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buf.memset(&bg);
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}
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fn get_module(&self, pos: (u32, u32)) -> Option<&Module> {
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for m in self.modules.iter() {
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if m.intersect(pos) {
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return Some(&m);
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}
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}
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None
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}
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fn new(tx: Sender<bool>) -> App {
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//
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// Set up modules
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//
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let (mod_tx, mod_rx) = channel();
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std::thread::spawn(move || {
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let mut modules = vec![
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Module::new(Box::new(Clock::new(tx.clone())), (0, 0, 720, 320)),
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Module::new(Box::new(Calendar::new()), (0, 368, 1280, 344)),
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];
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if let Ok(m) = Launcher::new() {
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modules.push(Module::new(Box::new(m), (0, 768, 1280, 32)));
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}
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let mut vert_off = 0;
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if let Ok(m) = UpowerBattery::new(tx.clone()) {
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modules.push(Module::new(Box::new(m), (720, vert_off, 560, 32)));
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vert_off += 32;
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}
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if let Ok(m) = Backlight::new() {
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modules.push(Module::new(Box::new(m), (720, vert_off, 560, 32)));
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vert_off += 32;
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}
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if let Ok(m) = PulseAudio::new(tx.clone()) {
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modules.push(Module::new(Box::new(m), (720, vert_off, 560, 32)));
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}
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mod_tx.send(modules).unwrap();
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});
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let cmd_queue = Arc::new(Mutex::new(VecDeque::new()));
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let (display, mut event_queue) = Display::connect_to_env().unwrap();
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let display_wrapper = display
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.as_ref()
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.make_wrapper(&event_queue.get_token())
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.unwrap()
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.into();
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//
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// Set up global manager
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//
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let manager = GlobalManager::new_with_cb(&display_wrapper, move |event, _| match event {
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GlobalEvent::New {
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id: _,
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interface: _,
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version: _,
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} => {}
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GlobalEvent::Removed {
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id: _,
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interface: _,
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} => {}
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});
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// double sync to retrieve the global list
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// and the globals metadata
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event_queue.sync_roundtrip().unwrap();
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event_queue.sync_roundtrip().unwrap();
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// wl_compositor
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let compositor: wl_compositor::WlCompositor = manager
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.instantiate_range(1, 4, NewProxy::implement_dummy)
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.expect("server didn't advertise `wl_compositor`");
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// wl_shm
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let shm_formats = Arc::new(Mutex::new(Vec::new()));
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let shm_formats2 = shm_formats.clone();
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let shm = manager
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.instantiate_range(1, 1, |shm| {
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shm.implement_closure(
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move |evt, _| {
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if let wl_shm::Event::Format { format } = evt {
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shm_formats2.lock().unwrap().push(format);
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}
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},
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(),
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)
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})
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.expect("server didn't advertise `wl_shm`");
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let pools = DoubleMemPool::new(&shm, || {}).expect("Failed to create a memory pool !");
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//
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// Get our seat
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//
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let seat = manager
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.instantiate_range(1, 6, NewProxy::implement_dummy)
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.unwrap();
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//
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// Keyboard processing
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//
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let kbd_clone = cmd_queue.clone();
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map_keyboard_auto_with_repeat(
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&seat,
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KeyRepeatKind::System,
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move |event: KbEvent, _| match event {
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KbEvent::Key {
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keysym,
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utf8,
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state,
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..
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} => match state {
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KeyState::Pressed => match keysym {
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keysyms::XKB_KEY_Escape => kbd_clone.lock().unwrap().push_back(Cmd::Exit),
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v => kbd_clone.lock().unwrap().push_back(Cmd::KeyboardInput {
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input: Input::Keypress {
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key: v,
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interpreted: utf8,
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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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},
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|_, _| {},
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)
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.expect("Failed to map keyboard");
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//
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// Prepare shell so that we can create our shell surface
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//
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let shell = if let Ok(layer) = manager.instantiate_exact(
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1,
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|layer: NewProxy<zwlr_layer_shell_v1::ZwlrLayerShellV1>| {
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layer.implement_closure(|_, _| {}, ())
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},
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) {
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layer
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} else {
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panic!("server didn't advertise `zwlr_layer_shell_v1`");
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};
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let surface = compositor
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.create_surface(NewProxy::implement_dummy)
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.unwrap();
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let shell_surface = shell
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.get_layer_surface(
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&surface,
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None,
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zwlr_layer_shell_v1::Layer::Overlay,
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"".to_string(),
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move |layer| {
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layer.implement_closure(
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move |evt, layer| match evt {
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zwlr_layer_surface_v1::Event::Configure { serial, .. } => layer.ack_configure(serial),
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_ => unreachable!(),
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},
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(),
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)
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},
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)
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.unwrap();
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//
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// Calculate window dimensions
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//
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let modules = mod_rx.recv().unwrap();
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let mut dimensions = (0, 0);
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for m in modules.iter() {
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let b = m.get_bounds();
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dimensions = (max(dimensions.0, b.0 + b.2), max(dimensions.1, b.1 + b.3));
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}
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// Add padding
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dimensions = (dimensions.0 + 40, dimensions.1 + 40);
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shell_surface.set_keyboard_interactivity(1);
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shell_surface.set_size(dimensions.0, dimensions.1);
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surface.commit();
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event_queue.sync_roundtrip().unwrap();
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//
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// Cursor processing
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//
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let pointer_clone = cmd_queue.clone();
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seat.get_pointer(move |ptr| {
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let mut pos: (u32, u32) = (0, 0);
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let mut vert_scroll: f64 = 0.0;
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let mut horiz_scroll: f64 = 0.0;
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let mut btn: u32 = 0;
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let mut btn_clicked = false;
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ptr.implement_closure(
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move |evt, _| match evt {
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wl_pointer::Event::Enter {
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surface_x,
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surface_y,
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..
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} => {
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pos = (surface_x as u32, surface_y as u32);
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}
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wl_pointer::Event::Leave { .. } => {
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pos = (0, 0);
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}
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wl_pointer::Event::Motion {
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surface_x,
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surface_y,
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..
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} => {
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pos = (surface_x as u32, surface_y as u32);
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}
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wl_pointer::Event::Axis {
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axis,
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value,
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..
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} => {
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if axis == wl_pointer::Axis::VerticalScroll {
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vert_scroll += value;
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}
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}
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wl_pointer::Event::Button {
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button,
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state,
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..
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} => match state {
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wl_pointer::ButtonState::Released => {
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btn = button;
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btn_clicked = true;
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}
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_ => {}
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},
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wl_pointer::Event::Frame => {
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if pos.0 < 20 || pos.1 < 20 {
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// Ignore stuff outside our margins
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return;
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}
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let pos = (pos.0 - 20, pos.1 - 20);
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if vert_scroll != 0.0 || horiz_scroll != 0.0 {
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pointer_clone.lock().unwrap().push_back(Cmd::MouseInput {
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pos: pos,
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input: Input::Scroll {
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pos: pos,
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x: horiz_scroll,
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y: vert_scroll,
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},
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});
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vert_scroll = 0.0;
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horiz_scroll = 0.0;
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}
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if btn_clicked {
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pointer_clone.lock().unwrap().push_back(Cmd::MouseInput {
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pos: pos,
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input: Input::Click {
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pos: pos,
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button: btn,
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},
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});
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btn_clicked = false;
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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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})
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.unwrap();
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display.flush().unwrap();
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App {
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surface: surface,
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display: display,
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event_queue: event_queue,
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cmd_queue: cmd_queue,
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pools: pools,
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dimensions: dimensions,
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modules: modules,
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}
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}
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}
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fn main() {
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let (mut rx_pipe, mut tx_pipe) = pipe().unwrap();
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let (tx_draw, rx_draw) = channel();
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let mut app = App::new(tx_draw);
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app.wipe();
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let worker_queue = app.cmd_queue();
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std::thread::spawn(move || loop {
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rx_draw.recv().unwrap();
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worker_queue.lock().unwrap().push_back(Cmd::Draw);
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tx_pipe.write_all(&[0x1]).unwrap();
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});
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let mut fds = [
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PollFd::new(app.event_queue().get_connection_fd(), PollFlags::POLLIN),
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PollFd::new(rx_pipe.as_raw_fd(), PollFlags::POLLIN),
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];
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app.cmd_queue().lock().unwrap().push_back(Cmd::Draw);
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let q = app.cmd_queue();
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loop {
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let cmd = q.lock().unwrap().pop_front();
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match cmd {
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Some(cmd) => match cmd {
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Cmd::Draw => {
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app.redraw(false).expect("Failed to draw");
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app.flush_display();
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}
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Cmd::MouseInput { pos, input } => {
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if let Some(m) = app.get_module(pos) {
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let bounds = m.get_bounds();
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let input = input.offset((bounds.0, bounds.1));
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m.input(input);
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q.lock().unwrap().push_back(Cmd::Draw);
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}
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}
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Cmd::KeyboardInput { input } => {
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for m in app.modules.iter() {
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m.input(input.clone());
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}
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q.lock().unwrap().push_back(Cmd::Draw);
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}
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Cmd::Exit => {
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std::process::exit(0);
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}
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},
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None => {
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app.flush_display();
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poll(&mut fds, -1).unwrap();
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if fds[0].revents().unwrap().contains(PollFlags::POLLIN) {
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if let Some(guard) = app.event_queue().prepare_read() {
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if let Err(e) = guard.read_events() {
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if e.kind() != ::std::io::ErrorKind::WouldBlock {
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eprintln!(
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"Error while trying to read from the wayland socket: {:?}",
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e
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);
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}
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}
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}
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app.event_queue()
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.dispatch_pending()
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.expect("Failed to dispatch all messages.");
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}
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if fds[1].revents().unwrap().contains(PollFlags::POLLIN) {
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let mut v: Vec<u8> = vec![0x00];
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rx_pipe.read_exact(&mut v).unwrap();
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}
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}
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}
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}
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}
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