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Linux: Rewrite the event loop using calloop (#8314)

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This PR unifies the event loop code for Wayland and X11. On Wayland,
blocking dispatch is now used. On X11, the invisible window is no longer
needed.

Release Notes:

- N/A

---------

Co-authored-by: Dzmitry Malyshau <kvark@fastmail.com>
Co-authored-by: Tadeo Kondrak <me@tadeo.ca>
Co-authored-by: Mikayla Maki <mikayla@zed.dev>
Co-authored-by: julia <julia@zed.dev>
This commit is contained in:
Roman 2024-02-28 14:59:11 -08:00 committed by GitHub
parent 198dfe0097
commit b76e0d997e
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GPG Key ID: B5690EEEBB952194
15 changed files with 615 additions and 632 deletions
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28
Cargo.lock generated
View File

@ -1631,6 +1631,32 @@ dependencies = [
"util",
]
[[package]]
name = "calloop"
version = "0.12.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "fba7adb4dd5aa98e5553510223000e7148f621165ec5f9acd7113f6ca4995298"
dependencies = [
"bitflags 2.4.1",
"log",
"polling 3.3.2",
"rustix 0.38.30",
"slab",
"thiserror",
]
[[package]]
name = "calloop-wayland-source"
version = "0.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0f0ea9b9476c7fad82841a8dbb380e2eae480c21910feba80725b46931ed8f02"
dependencies = [
"calloop",
"rustix 0.38.30",
"wayland-backend",
"wayland-client",
]
[[package]]
name = "castaway"
version = "0.1.2"
@ -4002,6 +4028,8 @@ dependencies = [
"blade-macros",
"block",
"bytemuck",
"calloop",
"calloop-wayland-source",
"cbindgen",
"cocoa",
"collections",

2
crates/gpui/Cargo.toml
View File

@ -103,6 +103,8 @@ wayland-protocols = { version = "0.31.2", features = ["client", "staging", "unst
wayland-backend = { version = "0.3.3", features = ["client_system"] }
xkbcommon = { version = "0.7", features = ["wayland", "x11"] }
as-raw-xcb-connection = "1"
calloop = "0.12.4"
calloop-wayland-source = "0.2.0"
#TODO: use these on all platforms
blade-graphics.workspace = true
blade-macros.workspace = true

3
crates/gpui/src/platform/linux.rs
View File

@ -1,5 +1,4 @@
mod client;
mod client_dispatcher;
mod dispatcher;
mod platform;
mod text_system;
@ -10,4 +9,4 @@ mod x11;
pub(crate) use dispatcher::*;
pub(crate) use platform::*;
pub(crate) use text_system::*;
pub(crate) use x11::*;
// pub(crate) use x11::*;

1
crates/gpui/src/platform/linux/client.rs
View File

@ -4,7 +4,6 @@ use crate::platform::PlatformWindow;
use crate::{AnyWindowHandle, DisplayId, PlatformDisplay, WindowOptions};
pub trait Client {
fn run(&self, on_finish_launching: Box<dyn FnOnce()>);
fn displays(&self) -> Vec<Rc<dyn PlatformDisplay>>;
fn display(&self, id: DisplayId) -> Option<Rc<dyn PlatformDisplay>>;
fn open_window(

3
crates/gpui/src/platform/linux/client_dispatcher.rs
View File

@ -1,3 +0,0 @@
pub trait ClientDispatcher: Send + Sync {
fn dispatch_on_main_thread(&self);
}

111
crates/gpui/src/platform/linux/dispatcher.rs
View File

@ -4,47 +4,88 @@
//todo!(linux): remove
#![allow(unused_variables)]
use crate::platform::linux::client_dispatcher::ClientDispatcher;
use crate::{PlatformDispatcher, TaskLabel};
use async_task::Runnable;
use calloop::{
channel::{self, Sender},
timer::TimeoutAction,
EventLoop,
};
use parking::{Parker, Unparker};
use parking_lot::Mutex;
use std::{
panic,
sync::Arc,
thread,
time::{Duration, Instant},
};
use std::{thread, time::Duration};
use util::ResultExt;
struct TimerAfter {
duration: Duration,
runnable: Runnable,
}
pub(crate) struct LinuxDispatcher {
client_dispatcher: Arc<dyn ClientDispatcher + Send + Sync>,
parker: Mutex<Parker>,
timed_tasks: Mutex<Vec<(Instant, Runnable)>>,
main_sender: flume::Sender<Runnable>,
main_sender: Sender<Runnable>,
timer_sender: Sender<TimerAfter>,
background_sender: flume::Sender<Runnable>,
_background_thread: thread::JoinHandle<()>,
_background_threads: Vec<thread::JoinHandle<()>>,
main_thread_id: thread::ThreadId,
}
impl LinuxDispatcher {
pub fn new(
main_sender: flume::Sender<Runnable>,
client_dispatcher: &Arc<dyn ClientDispatcher + Send + Sync>,
) -> Self {
pub fn new(main_sender: Sender<Runnable>) -> Self {
let (background_sender, background_receiver) = flume::unbounded::<Runnable>();
let background_thread = thread::spawn(move || {
profiling::register_thread!("background");
for runnable in background_receiver {
let _ignore_panic = panic::catch_unwind(|| runnable.run());
}
let thread_count = std::thread::available_parallelism()
.map(|i| i.get())
.unwrap_or(1);
let mut background_threads = (0..thread_count)
.map(|_| {
let receiver = background_receiver.clone();
std::thread::spawn(move || {
for runnable in receiver {
runnable.run();
}
})
})
.collect::<Vec<_>>();
let (timer_sender, timer_channel) = calloop::channel::channel::<TimerAfter>();
let timer_thread = std::thread::spawn(|| {
let mut event_loop: EventLoop<()> =
EventLoop::try_new().expect("Failed to initialize timer loop!");
let handle = event_loop.handle();
let timer_handle = event_loop.handle();
handle
.insert_source(timer_channel, move |e, _, _| {
if let channel::Event::Msg(timer) = e {
// This has to be in an option to satisfy the borrow checker. The callback below should only be scheduled once.
let mut runnable = Some(timer.runnable);
timer_handle
.insert_source(
calloop::timer::Timer::from_duration(timer.duration),
move |e, _, _| {
if let Some(runnable) = runnable.take() {
runnable.run();
}
TimeoutAction::Drop
},
)
.expect("Failed to start timer");
}
})
.expect("Failed to start timer thread");
event_loop.run(None, &mut (), |_| {}).log_err();
});
background_threads.push(timer_thread);
Self {
client_dispatcher: Arc::clone(client_dispatcher),
parker: Mutex::new(Parker::new()),
timed_tasks: Mutex::new(Vec::new()),
main_sender,
timer_sender,
background_sender,
_background_thread: background_thread,
_background_threads: background_threads,
main_thread_id: thread::current().id(),
}
}
@ -60,29 +101,19 @@ impl PlatformDispatcher for LinuxDispatcher {
}
fn dispatch_on_main_thread(&self, runnable: Runnable) {
self.main_sender.send(runnable).unwrap();
self.client_dispatcher.dispatch_on_main_thread();
self.main_sender
.send(runnable)
.expect("Main thread is gone");
}
fn dispatch_after(&self, duration: Duration, runnable: Runnable) {
let moment = Instant::now() + duration;
let mut timed_tasks = self.timed_tasks.lock();
timed_tasks.push((moment, runnable));
timed_tasks.sort_unstable_by(|(a, _), (b, _)| b.cmp(a));
self.timer_sender
.send(TimerAfter { duration, runnable })
.expect("Timer thread has died");
}
fn tick(&self, background_only: bool) -> bool {
let mut timed_tasks = self.timed_tasks.lock();
let old_count = timed_tasks.len();
while let Some(&(moment, _)) = timed_tasks.last() {
if moment <= Instant::now() {
let (_, runnable) = timed_tasks.pop().unwrap();
runnable.run();
} else {
break;
}
}
timed_tasks.len() != old_count
false
}
fn park(&self) {

165
crates/gpui/src/platform/linux/platform.rs
View File

@ -1,5 +1,6 @@
#![allow(unused)]
use std::cell::RefCell;
use std::env;
use std::{
path::{Path, PathBuf},
@ -10,6 +11,7 @@ use std::{
use ashpd::desktop::file_chooser::{OpenFileRequest, SaveFileRequest};
use async_task::Runnable;
use calloop::{EventLoop, LoopHandle, LoopSignal};
use flume::{Receiver, Sender};
use futures::channel::oneshot;
use parking_lot::Mutex;
@ -17,9 +19,7 @@ use time::UtcOffset;
use wayland_client::Connection;
use crate::platform::linux::client::Client;
use crate::platform::linux::client_dispatcher::ClientDispatcher;
use crate::platform::linux::wayland::{WaylandClient, WaylandClientDispatcher};
use crate::platform::{X11Client, X11ClientDispatcher, XcbAtoms};
use crate::platform::linux::wayland::WaylandClient;
use crate::{
Action, AnyWindowHandle, BackgroundExecutor, ClipboardItem, CursorStyle, DisplayId,
ForegroundExecutor, Keymap, LinuxDispatcher, LinuxTextSystem, Menu, PathPromptOptions,
@ -27,12 +27,14 @@ use crate::{
SemanticVersion, Task, WindowOptions,
};
use super::x11::X11Client;
#[derive(Default)]
pub(crate) struct Callbacks {
open_urls: Option<Box<dyn FnMut(Vec<String>)>>,
become_active: Option<Box<dyn FnMut()>>,
resign_active: Option<Box<dyn FnMut()>>,
pub(crate) quit: Option<Box<dyn FnMut()>>,
quit: Option<Box<dyn FnMut()>>,
reopen: Option<Box<dyn FnMut()>>,
event: Option<Box<dyn FnMut(PlatformInput) -> bool>>,
app_menu_action: Option<Box<dyn FnMut(&dyn Action)>>,
@ -41,12 +43,13 @@ pub(crate) struct Callbacks {
}
pub(crate) struct LinuxPlatformInner {
pub(crate) event_loop: RefCell<EventLoop<'static, ()>>,
pub(crate) loop_handle: Rc<LoopHandle<'static, ()>>,
pub(crate) loop_signal: LoopSignal,
pub(crate) background_executor: BackgroundExecutor,
pub(crate) foreground_executor: ForegroundExecutor,
pub(crate) main_receiver: flume::Receiver<Runnable>,
pub(crate) text_system: Arc<LinuxTextSystem>,
pub(crate) callbacks: Mutex<Callbacks>,
pub(crate) state: Mutex<LinuxPlatformState>,
pub(crate) callbacks: RefCell<Callbacks>,
}
pub(crate) struct LinuxPlatform {
@ -54,10 +57,6 @@ pub(crate) struct LinuxPlatform {
inner: Rc<LinuxPlatformInner>,
}
pub(crate) struct LinuxPlatformState {
pub(crate) quit_requested: bool,
}
impl Default for LinuxPlatform {
fn default() -> Self {
Self::new()
@ -69,90 +68,41 @@ impl LinuxPlatform {
let wayland_display = env::var_os("WAYLAND_DISPLAY");
let use_wayland = wayland_display.is_some() && !wayland_display.unwrap().is_empty();
let (main_sender, main_receiver) = flume::unbounded::<Runnable>();
let (main_sender, main_receiver) = calloop::channel::channel::<Runnable>();
let text_system = Arc::new(LinuxTextSystem::new());
let callbacks = Mutex::new(Callbacks::default());
let state = Mutex::new(LinuxPlatformState {
quit_requested: false,
let callbacks = RefCell::new(Callbacks::default());
let event_loop = EventLoop::try_new().unwrap();
event_loop
.handle()
.insert_source(main_receiver, |event, _, _| {
if let calloop::channel::Event::Msg(runnable) = event {
runnable.run();
}
});
let dispatcher = Arc::new(LinuxDispatcher::new(main_sender));
let inner = Rc::new(LinuxPlatformInner {
loop_handle: Rc::new(event_loop.handle()),
loop_signal: event_loop.get_signal(),
event_loop: RefCell::new(event_loop),
background_executor: BackgroundExecutor::new(dispatcher.clone()),
foreground_executor: ForegroundExecutor::new(dispatcher.clone()),
text_system,
callbacks,
});
if use_wayland {
Self::new_wayland(main_sender, main_receiver, text_system, callbacks, state)
Self {
client: Rc::new(WaylandClient::new(Rc::clone(&inner))),
inner,
}
} else {
Self::new_x11(main_sender, main_receiver, text_system, callbacks, state)
}
}
fn new_wayland(
main_sender: Sender<Runnable>,
main_receiver: Receiver<Runnable>,
text_system: Arc<LinuxTextSystem>,
callbacks: Mutex<Callbacks>,
state: Mutex<LinuxPlatformState>,
) -> Self {
let conn = Arc::new(Connection::connect_to_env().unwrap());
let client_dispatcher: Arc<dyn ClientDispatcher + Send + Sync> =
Arc::new(WaylandClientDispatcher::new(&conn));
let dispatcher = Arc::new(LinuxDispatcher::new(main_sender, &client_dispatcher));
let inner = Rc::new(LinuxPlatformInner {
background_executor: BackgroundExecutor::new(dispatcher.clone()),
foreground_executor: ForegroundExecutor::new(dispatcher.clone()),
main_receiver,
text_system,
callbacks,
state,
});
let client = Rc::new(WaylandClient::new(Rc::clone(&inner), Arc::clone(&conn)));
Self {
client,
inner: Rc::clone(&inner),
}
}
fn new_x11(
main_sender: Sender<Runnable>,
main_receiver: Receiver<Runnable>,
text_system: Arc<LinuxTextSystem>,
callbacks: Mutex<Callbacks>,
state: Mutex<LinuxPlatformState>,
) -> Self {
let (xcb_connection, x_root_index) = xcb::Connection::connect_with_extensions(
None,
&[xcb::Extension::Present, xcb::Extension::Xkb],
&[],
)
.unwrap();
let xkb_ver = xcb_connection
.wait_for_reply(xcb_connection.send_request(&xcb::xkb::UseExtension {
wanted_major: xcb::xkb::MAJOR_VERSION as u16,
wanted_minor: xcb::xkb::MINOR_VERSION as u16,
}))
.unwrap();
assert!(xkb_ver.supported());
let atoms = XcbAtoms::intern_all(&xcb_connection).unwrap();
let xcb_connection = Arc::new(xcb_connection);
let client_dispatcher: Arc<dyn ClientDispatcher + Send + Sync> =
Arc::new(X11ClientDispatcher::new(&xcb_connection, x_root_index));
let dispatcher = Arc::new(LinuxDispatcher::new(main_sender, &client_dispatcher));
let inner = Rc::new(LinuxPlatformInner {
background_executor: BackgroundExecutor::new(dispatcher.clone()),
foreground_executor: ForegroundExecutor::new(dispatcher.clone()),
main_receiver,
text_system,
callbacks,
state,
});
let client = Rc::new(X11Client::new(
Rc::clone(&inner),
xcb_connection,
x_root_index,
atoms,
));
Self {
client,
inner: Rc::clone(&inner),
Self {
client: X11Client::new(Rc::clone(&inner)),
inner,
}
}
}
}
@ -171,11 +121,24 @@ impl Platform for LinuxPlatform {
}
fn run(&self, on_finish_launching: Box<dyn FnOnce()>) {
self.client.run(on_finish_launching)
on_finish_launching();
self.inner
.event_loop
.borrow_mut()
.run(None, &mut (), |data| {})
.expect("Run loop failed");
let mut lock = self.inner.callbacks.borrow_mut();
if let Some(mut fun) = lock.quit.take() {
drop(lock);
fun();
let mut lock = self.inner.callbacks.borrow_mut();
lock.quit = Some(fun);
}
}
fn quit(&self) {
self.inner.state.lock().quit_requested = true;
self.inner.loop_signal.stop();
}
//todo!(linux)
@ -219,7 +182,7 @@ impl Platform for LinuxPlatform {
}
fn on_open_urls(&self, callback: Box<dyn FnMut(Vec<String>)>) {
self.inner.callbacks.lock().open_urls = Some(callback);
self.inner.callbacks.borrow_mut().open_urls = Some(callback);
}
fn prompt_for_paths(
@ -306,35 +269,35 @@ impl Platform for LinuxPlatform {
}
fn on_become_active(&self, callback: Box<dyn FnMut()>) {
self.inner.callbacks.lock().become_active = Some(callback);
self.inner.callbacks.borrow_mut().become_active = Some(callback);
}
fn on_resign_active(&self, callback: Box<dyn FnMut()>) {
self.inner.callbacks.lock().resign_active = Some(callback);
self.inner.callbacks.borrow_mut().resign_active = Some(callback);
}
fn on_quit(&self, callback: Box<dyn FnMut()>) {
self.inner.callbacks.lock().quit = Some(callback);
self.inner.callbacks.borrow_mut().quit = Some(callback);
}
fn on_reopen(&self, callback: Box<dyn FnMut()>) {
self.inner.callbacks.lock().reopen = Some(callback);
self.inner.callbacks.borrow_mut().reopen = Some(callback);
}
fn on_event(&self, callback: Box<dyn FnMut(PlatformInput) -> bool>) {
self.inner.callbacks.lock().event = Some(callback);
self.inner.callbacks.borrow_mut().event = Some(callback);
}
fn on_app_menu_action(&self, callback: Box<dyn FnMut(&dyn Action)>) {
self.inner.callbacks.lock().app_menu_action = Some(callback);
self.inner.callbacks.borrow_mut().app_menu_action = Some(callback);
}
fn on_will_open_app_menu(&self, callback: Box<dyn FnMut()>) {
self.inner.callbacks.lock().will_open_app_menu = Some(callback);
self.inner.callbacks.borrow_mut().will_open_app_menu = Some(callback);
}
fn on_validate_app_menu_command(&self, callback: Box<dyn FnMut(&dyn Action) -> bool>) {
self.inner.callbacks.lock().validate_app_menu_command = Some(callback);
self.inner.callbacks.borrow_mut().validate_app_menu_command = Some(callback);
}
fn os_name(&self) -> &'static str {

2
crates/gpui/src/platform/linux/wayland.rs
View File

@ -2,9 +2,7 @@
#![allow(unused_variables)]
pub(crate) use client::*;
pub(crate) use client_dispatcher::*;
mod client;
mod client_dispatcher;
mod display;
mod window;

212
crates/gpui/src/platform/linux/wayland/client.rs
View File

@ -3,10 +3,12 @@ use std::rc::Rc;
use std::sync::Arc;
use std::time::Duration;
use parking_lot::Mutex;
use smol::Timer;
use calloop::timer::{TimeoutAction, Timer};
use calloop::LoopHandle;
use calloop_wayland_source::WaylandSource;
use wayland_backend::client::ObjectId;
use wayland_backend::protocol::WEnum;
use wayland_client::globals::{registry_queue_init, GlobalListContents};
use wayland_client::protocol::wl_callback::WlCallback;
use wayland_client::protocol::wl_pointer::AxisRelativeDirection;
use wayland_client::{
@ -16,7 +18,7 @@ use wayland_client::{
wl_shm, wl_shm_pool,
wl_surface::{self, WlSurface},
},
Connection, Dispatch, EventQueue, Proxy, QueueHandle,
Connection, Dispatch, Proxy, QueueHandle,
};
use wayland_protocols::wp::fractional_scale::v1::client::{
wp_fractional_scale_manager_v1, wp_fractional_scale_v1,
@ -39,18 +41,17 @@ use crate::{
ScrollWheelEvent, TouchPhase, WindowOptions,
};
const MIN_KEYCODE: u32 = 8; // used to convert evdev scancode to xkb scancode
/// Used to convert evdev scancode to xkb scancode
const MIN_KEYCODE: u32 = 8;
pub(crate) struct WaylandClientStateInner {
compositor: Option<wl_compositor::WlCompositor>,
buffer: Option<wl_buffer::WlBuffer>,
wm_base: Option<xdg_wm_base::XdgWmBase>,
compositor: wl_compositor::WlCompositor,
wm_base: xdg_wm_base::XdgWmBase,
viewporter: Option<wp_viewporter::WpViewporter>,
fractional_scale_manager: Option<wp_fractional_scale_manager_v1::WpFractionalScaleManagerV1>,
decoration_manager: Option<zxdg_decoration_manager_v1::ZxdgDecorationManagerV1>,
windows: Vec<(xdg_surface::XdgSurface, Rc<WaylandWindowState>)>,
platform_inner: Rc<LinuxPlatformInner>,
wl_seat: Option<wl_seat::WlSeat>,
keymap_state: Option<xkb::State>,
repeat: KeyRepeat,
modifiers: Modifiers,
@ -59,6 +60,7 @@ pub(crate) struct WaylandClientStateInner {
button_pressed: Option<MouseButton>,
mouse_focused_window: Option<Rc<WaylandWindowState>>,
keyboard_focused_window: Option<Rc<WaylandWindowState>>,
loop_handle: Rc<LoopHandle<'static, ()>>,
}
#[derive(Clone)]
@ -73,24 +75,40 @@ pub(crate) struct KeyRepeat {
pub(crate) struct WaylandClient {
platform_inner: Rc<LinuxPlatformInner>,
conn: Arc<Connection>,
state: WaylandClientState,
event_queue: Mutex<EventQueue<WaylandClientState>>,
qh: Arc<QueueHandle<WaylandClientState>>,
}
const WL_SEAT_VERSION: u32 = 4;
impl WaylandClient {
pub(crate) fn new(linux_platform_inner: Rc<LinuxPlatformInner>, conn: Arc<Connection>) -> Self {
let state = WaylandClientState(Rc::new(RefCell::new(WaylandClientStateInner {
compositor: None,
buffer: None,
wm_base: None,
viewporter: None,
fractional_scale_manager: None,
decoration_manager: None,
pub(crate) fn new(linux_platform_inner: Rc<LinuxPlatformInner>) -> Self {
let conn = Connection::connect_to_env().unwrap();
let (globals, mut event_queue) = registry_queue_init::<WaylandClientState>(&conn).unwrap();
let qh = event_queue.handle();
globals.contents().with_list(|list| {
for global in list {
if global.interface == "wl_seat" {
globals.registry().bind::<wl_seat::WlSeat, _, _>(
global.name,
WL_SEAT_VERSION,
&qh,
(),
);
}
}
});
let mut state_inner = Rc::new(RefCell::new(WaylandClientStateInner {
compositor: globals.bind(&qh, 1..=1, ()).unwrap(),
wm_base: globals.bind(&qh, 1..=1, ()).unwrap(),
viewporter: globals.bind(&qh, 1..=1, ()).ok(),
fractional_scale_manager: globals.bind(&qh, 1..=1, ()).ok(),
decoration_manager: globals.bind(&qh, 1..=1, ()).ok(),
windows: Vec::new(),
platform_inner: Rc::clone(&linux_platform_inner),
wl_seat: None,
keymap_state: None,
repeat: KeyRepeat {
characters_per_second: 16,
@ -110,41 +128,28 @@ impl WaylandClient {
button_pressed: None,
mouse_focused_window: None,
keyboard_focused_window: None,
})));
let event_queue: EventQueue<WaylandClientState> = conn.new_event_queue();
let qh = event_queue.handle();
loop_handle: Rc::clone(&linux_platform_inner.loop_handle),
}));
let source = WaylandSource::new(conn, event_queue);
let mut state = WaylandClientState(Rc::clone(&state_inner));
linux_platform_inner
.loop_handle
.insert_source(source, move |_, queue, _| {
queue.dispatch_pending(&mut state)
})
.unwrap();
Self {
platform_inner: linux_platform_inner,
conn,
state,
event_queue: Mutex::new(event_queue),
state: WaylandClientState(state_inner),
qh: Arc::new(qh),
}
}
}
impl Client for WaylandClient {
fn run(&self, on_finish_launching: Box<dyn FnOnce()>) {
let display = self.conn.display();
let mut eq = self.event_queue.lock();
let _registry = display.get_registry(&self.qh, ());
eq.roundtrip(&mut self.state.clone()).unwrap();
on_finish_launching();
while !self.platform_inner.state.lock().quit_requested {
eq.flush().unwrap();
eq.dispatch_pending(&mut self.state.clone()).unwrap();
if let Some(guard) = self.conn.prepare_read() {
guard.read().unwrap();
eq.dispatch_pending(&mut self.state.clone()).unwrap();
}
if let Ok(runnable) = self.platform_inner.main_receiver.try_recv() {
runnable.run();
}
}
}
fn displays(&self) -> Vec<Rc<dyn PlatformDisplay>> {
Vec::new()
}
@ -160,10 +165,8 @@ impl Client for WaylandClient {
) -> Box<dyn PlatformWindow> {
let mut state = self.state.0.borrow_mut();
let wm_base = state.wm_base.as_ref().unwrap();
let compositor = state.compositor.as_ref().unwrap();
let wl_surface = compositor.create_surface(&self.qh, ());
let xdg_surface = wm_base.get_xdg_surface(&wl_surface, &self.qh, ());
let wl_surface = state.compositor.create_surface(&self.qh, ());
let xdg_surface = state.wm_base.get_xdg_surface(&wl_surface, &self.qh, ());
let toplevel = xdg_surface.get_toplevel(&self.qh, ());
let wl_surface = Arc::new(wl_surface);
@ -200,8 +203,7 @@ impl Client for WaylandClient {
wl_surface.frame(&self.qh, wl_surface.clone());
wl_surface.commit();
let window_state = Rc::new(WaylandWindowState::new(
&self.conn,
let window_state: Rc<WaylandWindowState> = Rc::new(WaylandWindowState::new(
wl_surface.clone(),
viewport,
Arc::new(toplevel),
@ -217,62 +219,27 @@ impl Client for WaylandClient {
}
}
impl Dispatch<wl_registry::WlRegistry, ()> for WaylandClientState {
impl Dispatch<wl_registry::WlRegistry, GlobalListContents> for WaylandClientState {
fn event(
state: &mut Self,
registry: &wl_registry::WlRegistry,
event: wl_registry::Event,
_: &(),
_: &GlobalListContents,
_: &Connection,
qh: &QueueHandle<Self>,
) {
let mut state = state.0.borrow_mut();
if let wl_registry::Event::Global {
name, interface, ..
} = event
{
match &interface[..] {
"wl_compositor" => {
let compositor =
registry.bind::<wl_compositor::WlCompositor, _, _>(name, 1, qh, ());
state.compositor = Some(compositor);
match event {
wl_registry::Event::Global {
name,
interface,
version: _,
} => {
if interface.as_str() == "wl_seat" {
registry.bind::<wl_seat::WlSeat, _, _>(name, 4, qh, ());
}
"xdg_wm_base" => {
let wm_base = registry.bind::<xdg_wm_base::XdgWmBase, _, _>(name, 1, qh, ());
state.wm_base = Some(wm_base);
}
"wl_seat" => {
let seat = registry.bind::<wl_seat::WlSeat, _, _>(name, 4, qh, ());
state.wl_seat = Some(seat);
}
"wp_fractional_scale_manager_v1" => {
let manager = registry
.bind::<wp_fractional_scale_manager_v1::WpFractionalScaleManagerV1, _, _>(
name,
1,
qh,
(),
);
state.fractional_scale_manager = Some(manager);
}
"wp_viewporter" => {
let view_porter =
registry.bind::<wp_viewporter::WpViewporter, _, _>(name, 1, qh, ());
state.viewporter = Some(view_porter);
}
"zxdg_decoration_manager_v1" => {
// Unstable and optional
let decoration_manager = registry
.bind::<zxdg_decoration_manager_v1::ZxdgDecorationManagerV1, _, _>(
name,
1,
qh,
(),
);
state.decoration_manager = Some(decoration_manager);
}
_ => {}
};
}
wl_registry::Event::GlobalRemove { name: _ } => {}
_ => {}
}
}
}
@ -367,7 +334,7 @@ impl Dispatch<xdg_toplevel::XdgToplevel, ()> for WaylandClientState {
true
}
});
state.platform_inner.state.lock().quit_requested |= state.windows.is_empty();
state.platform_inner.loop_signal.stop();
}
}
}
@ -529,34 +496,29 @@ impl Dispatch<wl_keyboard::WlKeyboard, ()> for WaylandClientState {
let id = state.repeat.current_id;
let this = this.clone();
let timer = Timer::from_duration(delay);
let state_ = Rc::clone(&this.0);
state
.platform_inner
.foreground_executor
.spawn(async move {
let mut wait_time = delay;
.loop_handle
.insert_source(timer, move |event, _metadata, shared_data| {
let state_ = state_.borrow_mut();
let is_repeating = id == state_.repeat.current_id
&& state_.repeat.current_keysym.is_some()
&& state_.keyboard_focused_window.is_some();
loop {
Timer::after(wait_time).await;
let state = this.0.borrow_mut();
let is_repeating = id == state.repeat.current_id
&& state.repeat.current_keysym.is_some()
&& state.keyboard_focused_window.is_some();
if !is_repeating {
return;
}
state
.keyboard_focused_window
.as_ref()
.unwrap()
.handle_input(input.clone());
wait_time = Duration::from_secs(1) / rate;
if !is_repeating {
return TimeoutAction::Drop;
}
state_
.keyboard_focused_window
.as_ref()
.unwrap()
.handle_input(input.clone());
TimeoutAction::ToDuration(Duration::from_secs(1) / rate)
})
.detach();
.unwrap();
}
}
wl_keyboard::KeyState::Released => {

30
crates/gpui/src/platform/linux/wayland/client_dispatcher.rs
View File

@ -1,30 +0,0 @@
use std::sync::Arc;
use wayland_client::{Connection, EventQueue};
use crate::platform::linux::client_dispatcher::ClientDispatcher;
pub(crate) struct WaylandClientDispatcher {
conn: Arc<Connection>,
event_queue: Arc<EventQueue<Connection>>,
}
impl WaylandClientDispatcher {
pub(crate) fn new(conn: &Arc<Connection>) -> Self {
let event_queue = conn.new_event_queue();
Self {
conn: Arc::clone(conn),
event_queue: Arc::new(event_queue),
}
}
}
impl Drop for WaylandClientDispatcher {
fn drop(&mut self) {
//todo!(linux)
}
}
impl ClientDispatcher for WaylandClientDispatcher {
fn dispatch_on_main_thread(&self) {}
}

80
crates/gpui/src/platform/linux/wayland/window.rs
View File

@ -1,4 +1,5 @@
use std::any::Any;
use std::cell::RefCell;
use std::ffi::c_void;
use std::rc::Rc;
use std::sync::Arc;
@ -6,7 +7,6 @@ use std::sync::Arc;
use blade_graphics as gpu;
use blade_rwh::{HasRawDisplayHandle, HasRawWindowHandle, RawDisplayHandle, RawWindowHandle};
use futures::channel::oneshot::Receiver;
use parking_lot::Mutex;
use raw_window_handle::{
DisplayHandle, HandleError, HasDisplayHandle, HasWindowHandle, WindowHandle,
};
@ -66,14 +66,15 @@ unsafe impl HasRawDisplayHandle for RawWindow {
}
impl WaylandWindowInner {
fn new(
conn: &Arc<wayland_client::Connection>,
wl_surf: &Arc<wl_surface::WlSurface>,
bounds: Bounds<i32>,
) -> Self {
fn new(wl_surf: &Arc<wl_surface::WlSurface>, bounds: Bounds<i32>) -> Self {
let raw = RawWindow {
window: wl_surf.id().as_ptr().cast::<c_void>(),
display: conn.backend().display_ptr().cast::<c_void>(),
display: wl_surf
.backend()
.upgrade()
.unwrap()
.display_ptr()
.cast::<c_void>(),
};
let gpu = Arc::new(
unsafe {
@ -105,9 +106,8 @@ impl WaylandWindowInner {
}
pub(crate) struct WaylandWindowState {
conn: Arc<wayland_client::Connection>,
inner: Mutex<WaylandWindowInner>,
pub(crate) callbacks: Mutex<Callbacks>,
inner: RefCell<WaylandWindowInner>,
pub(crate) callbacks: RefCell<Callbacks>,
pub(crate) surface: Arc<wl_surface::WlSurface>,
pub(crate) toplevel: Arc<xdg_toplevel::XdgToplevel>,
viewport: Option<wp_viewport::WpViewport>,
@ -115,7 +115,6 @@ pub(crate) struct WaylandWindowState {
impl WaylandWindowState {
pub(crate) fn new(
conn: &Arc<wayland_client::Connection>,
wl_surf: Arc<wl_surface::WlSurface>,
viewport: Option<wp_viewport::WpViewport>,
toplevel: Arc<xdg_toplevel::XdgToplevel>,
@ -139,34 +138,33 @@ impl WaylandWindowState {
};
Self {
conn: Arc::clone(conn),
surface: Arc::clone(&wl_surf),
inner: Mutex::new(WaylandWindowInner::new(&Arc::clone(conn), &wl_surf, bounds)),
callbacks: Mutex::new(Callbacks::default()),
inner: RefCell::new(WaylandWindowInner::new(&wl_surf, bounds)),
callbacks: RefCell::new(Callbacks::default()),
toplevel,
viewport,
}
}
pub fn update(&self) {
let mut cb = self.callbacks.lock();
let mut cb = self.callbacks.borrow_mut();
if let Some(mut fun) = cb.request_frame.take() {
drop(cb);
fun();
self.callbacks.lock().request_frame = Some(fun);
self.callbacks.borrow_mut().request_frame = Some(fun);
}
}
pub fn set_size_and_scale(&self, width: i32, height: i32, scale: f32) {
self.inner.lock().scale = scale;
self.inner.lock().bounds.size.width = width;
self.inner.lock().bounds.size.height = height;
self.inner.lock().renderer.update_drawable_size(size(
self.inner.borrow_mut().scale = scale;
self.inner.borrow_mut().bounds.size.width = width;
self.inner.borrow_mut().bounds.size.height = height;
self.inner.borrow_mut().renderer.update_drawable_size(size(
width as f64 * scale as f64,
height as f64 * scale as f64,
));
if let Some(ref mut fun) = self.callbacks.lock().resize {
if let Some(ref mut fun) = self.callbacks.borrow_mut().resize {
fun(
Size {
width: px(width as f32),
@ -182,12 +180,12 @@ impl WaylandWindowState {
}
pub fn resize(&self, width: i32, height: i32) {
let scale = self.inner.lock().scale;
let scale = self.inner.borrow_mut().scale;
self.set_size_and_scale(width, height, scale);
}
pub fn rescale(&self, scale: f32) {
let bounds = self.inner.lock().bounds;
let bounds = self.inner.borrow_mut().bounds;
self.set_size_and_scale(bounds.size.width, bounds.size.height, scale)
}
@ -200,13 +198,13 @@ impl WaylandWindowState {
/// of the decorations. This is because the state of the decorations
/// is managed by the compositor and not the client.
pub fn set_decoration_state(&self, state: WaylandDecorationState) {
self.inner.lock().decoration_state = state;
self.inner.borrow_mut().decoration_state = state;
log::trace!("Window decorations are now handled by {:?}", state);
// todo!(linux) - Handle this properly
}
pub fn close(&self) {
let mut callbacks = self.callbacks.lock();
let mut callbacks = self.callbacks.borrow_mut();
if let Some(fun) = callbacks.close.take() {
fun()
}
@ -214,13 +212,13 @@ impl WaylandWindowState {
}
pub fn handle_input(&self, input: PlatformInput) {
if let Some(ref mut fun) = self.callbacks.lock().input {
if let Some(ref mut fun) = self.callbacks.borrow_mut().input {
if fun(input.clone()) {
return;
}
}
if let PlatformInput::KeyDown(event) = input {
let mut inner = self.inner.lock();
let mut inner = self.inner.borrow_mut();
if let Some(ref mut input_handler) = inner.input_handler {
if let Some(ime_key) = &event.keystroke.ime_key {
input_handler.replace_text_in_range(None, ime_key);
@ -230,7 +228,7 @@ impl WaylandWindowState {
}
pub fn set_focused(&self, focus: bool) {
if let Some(ref mut fun) = self.callbacks.lock().active_status_change {
if let Some(ref mut fun) = self.callbacks.borrow_mut().active_status_change {
fun(focus);
}
}
@ -258,7 +256,7 @@ impl PlatformWindow for WaylandWindow {
}
fn content_size(&self) -> Size<Pixels> {
let inner = self.0.inner.lock();
let inner = self.0.inner.borrow_mut();
Size {
width: Pixels(inner.bounds.size.width as f32),
height: Pixels(inner.bounds.size.height as f32),
@ -266,7 +264,7 @@ impl PlatformWindow for WaylandWindow {
}
fn scale_factor(&self) -> f32 {
self.0.inner.lock().scale
self.0.inner.borrow_mut().scale
}
//todo!(linux)
@ -300,11 +298,11 @@ impl PlatformWindow for WaylandWindow {
}
fn set_input_handler(&mut self, input_handler: PlatformInputHandler) {
self.0.inner.lock().input_handler = Some(input_handler);
self.0.inner.borrow_mut().input_handler = Some(input_handler);
}
fn take_input_handler(&mut self) -> Option<PlatformInputHandler> {
self.0.inner.lock().input_handler.take()
self.0.inner.borrow_mut().input_handler.take()
}
//todo!(linux)
@ -347,19 +345,19 @@ impl PlatformWindow for WaylandWindow {
}
fn on_request_frame(&self, callback: Box<dyn FnMut()>) {
self.0.callbacks.lock().request_frame = Some(callback);
self.0.callbacks.borrow_mut().request_frame = Some(callback);
}
fn on_input(&self, callback: Box<dyn FnMut(PlatformInput) -> bool>) {
self.0.callbacks.lock().input = Some(callback);
self.0.callbacks.borrow_mut().input = Some(callback);
}
fn on_active_status_change(&self, callback: Box<dyn FnMut(bool)>) {
self.0.callbacks.lock().active_status_change = Some(callback);
self.0.callbacks.borrow_mut().active_status_change = Some(callback);
}
fn on_resize(&self, callback: Box<dyn FnMut(Size<Pixels>, f32)>) {
self.0.callbacks.lock().resize = Some(callback);
self.0.callbacks.borrow_mut().resize = Some(callback);
}
fn on_fullscreen(&self, callback: Box<dyn FnMut(bool)>) {
@ -367,15 +365,15 @@ impl PlatformWindow for WaylandWindow {
}
fn on_moved(&self, callback: Box<dyn FnMut()>) {
self.0.callbacks.lock().moved = Some(callback);
self.0.callbacks.borrow_mut().moved = Some(callback);
}
fn on_should_close(&self, callback: Box<dyn FnMut() -> bool>) {
self.0.callbacks.lock().should_close = Some(callback);
self.0.callbacks.borrow_mut().should_close = Some(callback);
}
fn on_close(&self, callback: Box<dyn FnOnce()>) {
self.0.callbacks.lock().close = Some(callback);
self.0.callbacks.borrow_mut().close = Some(callback);
}
fn on_appearance_changed(&self, callback: Box<dyn FnMut()>) {
@ -388,12 +386,12 @@ impl PlatformWindow for WaylandWindow {
}
fn draw(&self, scene: &Scene) {
let mut inner = self.0.inner.lock();
let mut inner = self.0.inner.borrow_mut();
inner.renderer.draw(scene);
}
fn sprite_atlas(&self) -> Arc<dyn PlatformAtlas> {
let inner = self.0.inner.lock();
let inner = self.0.inner.borrow_mut();
inner.renderer.sprite_atlas().clone()
}

2
crates/gpui/src/platform/linux/x11.rs
View File

@ -1,11 +1,9 @@
mod client;
mod client_dispatcher;
mod display;
mod event;
mod window;
pub(crate) use client::*;
pub(crate) use client_dispatcher::*;
pub(crate) use display::*;
pub(crate) use event::*;
pub(crate) use window::*;

466
crates/gpui/src/platform/linux/x11/client.rs
View File

@ -1,40 +1,60 @@
use std::{rc::Rc, sync::Arc};
use std::cell::{Cell, RefCell};
use std::rc::Rc;
use std::time::Duration;
use parking_lot::Mutex;
use xcb::{x, Xid as _};
use xkbcommon::xkb;
use collections::{HashMap, HashSet};
use crate::platform::linux::client::Client;
use crate::platform::{
LinuxPlatformInner, PlatformWindow, X11Display, X11Window, X11WindowState, XcbAtoms,
};
use crate::platform::{LinuxPlatformInner, PlatformWindow};
use crate::{
AnyWindowHandle, Bounds, DisplayId, PlatformDisplay, PlatformInput, Point, ScrollDelta, Size,
TouchPhase, WindowOptions,
};
use super::{X11Display, X11Window, X11WindowState, XcbAtoms};
use calloop::generic::{FdWrapper, Generic};
pub(crate) struct X11ClientState {
pub(crate) windows: HashMap<x::Window, Rc<X11WindowState>>,
pub(crate) windows_to_refresh: HashSet<x::Window>,
xkb: xkbcommon::xkb::State,
}
pub(crate) struct X11Client {
platform_inner: Rc<LinuxPlatformInner>,
xcb_connection: Arc<xcb::Connection>,
xcb_connection: Rc<xcb::Connection>,
x_root_index: i32,
atoms: XcbAtoms,
state: Mutex<X11ClientState>,
refresh_millis: Cell<u64>,
state: RefCell<X11ClientState>,
}
impl X11Client {
pub(crate) fn new(
inner: Rc<LinuxPlatformInner>,
xcb_connection: Arc<xcb::Connection>,
x_root_index: i32,
atoms: XcbAtoms,
) -> Self {
pub(crate) fn new(inner: Rc<LinuxPlatformInner>) -> Rc<Self> {
let (xcb_connection, x_root_index) = xcb::Connection::connect_with_extensions(
None,
&[
xcb::Extension::Present,
xcb::Extension::Xkb,
xcb::Extension::RandR,
],
&[],
)
.unwrap();
let xkb_ver = xcb_connection
.wait_for_reply(xcb_connection.send_request(&xcb::xkb::UseExtension {
wanted_major: xcb::xkb::MAJOR_VERSION as u16,
wanted_minor: xcb::xkb::MINOR_VERSION as u16,
}))
.unwrap();
assert!(xkb_ver.supported());
let atoms = XcbAtoms::intern_all(&xcb_connection).unwrap();
let xcb_connection = Rc::new(xcb_connection);
let xkb_context = xkb::Context::new(xkb::CONTEXT_NO_FLAGS);
let xkb_device_id = xkb::x11::get_core_keyboard_device_id(&xcb_connection);
let xkb_keymap = xkb::x11::keymap_new_from_device(
@ -43,195 +63,235 @@ impl X11Client {
xkb_device_id,
xkb::KEYMAP_COMPILE_NO_FLAGS,
);
let xkb_state =
xkb::x11::state_new_from_device(&xkb_keymap, &xcb_connection, xkb_device_id);
Self {
platform_inner: inner,
xcb_connection,
let client: Rc<X11Client> = Rc::new(Self {
platform_inner: inner.clone(),
xcb_connection: xcb_connection.clone(),
x_root_index,
atoms,
state: Mutex::new(X11ClientState {
refresh_millis: Cell::new(16),
state: RefCell::new(X11ClientState {
windows: HashMap::default(),
windows_to_refresh: HashSet::default(),
xkb: xkb_state,
}),
});
// Safety: Safe if xcb::Connection always returns a valid fd
let fd = unsafe { FdWrapper::new(xcb_connection.clone()) };
inner
.loop_handle
.insert_source(
Generic::new_with_error::<xcb::Error>(
fd,
calloop::Interest::READ,
calloop::Mode::Level,
),
{
let client = client.clone();
move |readiness, _, _| {
if readiness.readable || readiness.error {
while let Some(event) = xcb_connection.poll_for_event()? {
client.handle_event(event);
}
}
Ok(calloop::PostAction::Continue)
}
},
)
.expect("Failed to initialize x11 event source");
inner
.loop_handle
.insert_source(
calloop::timer::Timer::from_duration(Duration::from_millis(
client.refresh_millis.get(),
)),
{
let client = client.clone();
move |_, _, _| {
client.present();
calloop::timer::TimeoutAction::ToDuration(Duration::from_millis(
client.refresh_millis.get(),
))
}
},
)
.expect("Failed to initialize refresh timer");
client
}
fn get_window(&self, win: x::Window) -> Option<Rc<X11WindowState>> {
let state = self.state.borrow();
state.windows.get(&win).cloned()
}
fn present(&self) {
let state = self.state.borrow_mut();
for window_state in state.windows.values() {
window_state.refresh();
}
}
fn get_window(&self, win: x::Window) -> Rc<X11WindowState> {
let state = self.state.lock();
Rc::clone(&state.windows[&win])
fn handle_event(&self, event: xcb::Event) -> Option<()> {
match event {
xcb::Event::X(x::Event::ClientMessage(event)) => {
if let x::ClientMessageData::Data32([atom, ..]) = event.data() {
if atom == self.atoms.wm_del_window.resource_id() {
self.state
.borrow_mut()
.windows_to_refresh
.remove(&event.window());
// window "x" button clicked by user, we gracefully exit
let window = self
.state
.borrow_mut()
.windows
.remove(&event.window())
.unwrap();
window.destroy();
let state = self.state.borrow();
if state.windows.is_empty() {
self.platform_inner.loop_signal.stop();
}
}
}
}
xcb::Event::X(x::Event::ConfigureNotify(event)) => {
let bounds = Bounds {
origin: Point {
x: event.x().into(),
y: event.y().into(),
},
size: Size {
width: event.width().into(),
height: event.height().into(),
},
};
let window = self.get_window(event.window())?;
window.configure(bounds);
}
xcb::Event::X(x::Event::FocusIn(event)) => {
let window = self.get_window(event.event())?;
window.set_focused(true);
}
xcb::Event::X(x::Event::FocusOut(event)) => {
let window = self.get_window(event.event())?;
window.set_focused(false);
}
xcb::Event::X(x::Event::KeyPress(event)) => {
let window = self.get_window(event.event())?;
let modifiers = super::modifiers_from_state(event.state());
let keystroke = {
let code = event.detail().into();
let mut state = self.state.borrow_mut();
let keystroke = crate::Keystroke::from_xkb(&state.xkb, modifiers, code);
state.xkb.update_key(code, xkb::KeyDirection::Down);
keystroke
};
window.handle_input(PlatformInput::KeyDown(crate::KeyDownEvent {
keystroke,
is_held: false,
}));
}
xcb::Event::X(x::Event::KeyRelease(event)) => {
let window = self.get_window(event.event())?;
let modifiers = super::modifiers_from_state(event.state());
let keystroke = {
let code = event.detail().into();
let mut state = self.state.borrow_mut();
let keystroke = crate::Keystroke::from_xkb(&state.xkb, modifiers, code);
state.xkb.update_key(code, xkb::KeyDirection::Up);
keystroke
};
window.handle_input(PlatformInput::KeyUp(crate::KeyUpEvent { keystroke }));
}
xcb::Event::X(x::Event::ButtonPress(event)) => {
let window = self.get_window(event.event())?;
let modifiers = super::modifiers_from_state(event.state());
let position = Point::new(
(event.event_x() as f32).into(),
(event.event_y() as f32).into(),
);
if let Some(button) = super::button_of_key(event.detail()) {
window.handle_input(PlatformInput::MouseDown(crate::MouseDownEvent {
button,
position,
modifiers,
click_count: 1,
}));
} else if event.detail() >= 4 && event.detail() <= 5 {
// https://stackoverflow.com/questions/15510472/scrollwheel-event-in-x11
let delta_x = if event.detail() == 4 { 1.0 } else { -1.0 };
window.handle_input(PlatformInput::ScrollWheel(crate::ScrollWheelEvent {
position,
delta: ScrollDelta::Lines(Point::new(0.0, delta_x)),
modifiers,
touch_phase: TouchPhase::default(),
}));
} else {
log::warn!("Unknown button press: {event:?}");
}
}
xcb::Event::X(x::Event::ButtonRelease(event)) => {
let window = self.get_window(event.event())?;
let modifiers = super::modifiers_from_state(event.state());
let position = Point::new(
(event.event_x() as f32).into(),
(event.event_y() as f32).into(),
);
if let Some(button) = super::button_of_key(event.detail()) {
window.handle_input(PlatformInput::MouseUp(crate::MouseUpEvent {
button,
position,
modifiers,
click_count: 1,
}));
}
}
xcb::Event::X(x::Event::MotionNotify(event)) => {
let window = self.get_window(event.event())?;
let pressed_button = super::button_from_state(event.state());
let position = Point::new(
(event.event_x() as f32).into(),
(event.event_y() as f32).into(),
);
let modifiers = super::modifiers_from_state(event.state());
window.handle_input(PlatformInput::MouseMove(crate::MouseMoveEvent {
pressed_button,
position,
modifiers,
}));
}
xcb::Event::X(x::Event::LeaveNotify(event)) => {
let window = self.get_window(event.event())?;
let pressed_button = super::button_from_state(event.state());
let position = Point::new(
(event.event_x() as f32).into(),
(event.event_y() as f32).into(),
);
let modifiers = super::modifiers_from_state(event.state());
window.handle_input(PlatformInput::MouseExited(crate::MouseExitEvent {
pressed_button,
position,
modifiers,
}));
}
_ => {}
};
Some(())
}
}
impl Client for X11Client {
fn run(&self, on_finish_launching: Box<dyn FnOnce()>) {
on_finish_launching();
let mut windows_to_refresh = HashSet::<x::Window>::default();
while !self.platform_inner.state.lock().quit_requested {
// We prioritize work in the following order:
// 1. input events from X11
// 2. runnables for the main thread
// 3. drawing/presentation
let event = if let Some(event) = self.xcb_connection.poll_for_event().unwrap() {
event
} else if let Ok(runnable) = self.platform_inner.main_receiver.try_recv() {
runnable.run();
continue;
} else if let Some(x_window) = windows_to_refresh.iter().next().cloned() {
windows_to_refresh.remove(&x_window);
let window = self.get_window(x_window);
window.refresh();
window.request_refresh();
continue;
} else {
profiling::scope!("Wait for event");
self.xcb_connection.wait_for_event().unwrap()
};
match event {
xcb::Event::X(x::Event::ClientMessage(ev)) => {
if let x::ClientMessageData::Data32([atom, ..]) = ev.data() {
if atom == self.atoms.wm_del_window.resource_id() {
windows_to_refresh.remove(&ev.window());
// window "x" button clicked by user, we gracefully exit
let window = self.state.lock().windows.remove(&ev.window()).unwrap();
window.destroy();
let state = self.state.lock();
self.platform_inner.state.lock().quit_requested |=
state.windows.is_empty();
}
}
}
xcb::Event::X(x::Event::Expose(ev)) => {
windows_to_refresh.insert(ev.window());
}
xcb::Event::X(x::Event::ConfigureNotify(ev)) => {
let bounds = Bounds {
origin: Point {
x: ev.x().into(),
y: ev.y().into(),
},
size: Size {
width: ev.width().into(),
height: ev.height().into(),
},
};
self.get_window(ev.window()).configure(bounds)
}
xcb::Event::Present(xcb::present::Event::CompleteNotify(ev)) => {
windows_to_refresh.insert(ev.window());
}
xcb::Event::Present(xcb::present::Event::IdleNotify(_ev)) => {}
xcb::Event::X(x::Event::FocusIn(ev)) => {
let window = self.get_window(ev.event());
window.set_focused(true);
}
xcb::Event::X(x::Event::FocusOut(ev)) => {
let window = self.get_window(ev.event());
window.set_focused(false);
}
xcb::Event::X(x::Event::KeyPress(ev)) => {
let window = self.get_window(ev.event());
let modifiers = super::modifiers_from_state(ev.state());
let keystroke = {
let code = ev.detail().into();
let mut state = self.state.lock();
let keystroke = crate::Keystroke::from_xkb(&state.xkb, modifiers, code);
state.xkb.update_key(code, xkb::KeyDirection::Down);
keystroke
};
window.handle_input(PlatformInput::KeyDown(crate::KeyDownEvent {
keystroke,
is_held: false,
}));
}
xcb::Event::X(x::Event::KeyRelease(ev)) => {
let window = self.get_window(ev.event());
let modifiers = super::modifiers_from_state(ev.state());
let keystroke = {
let code = ev.detail().into();
let mut state = self.state.lock();
let keystroke = crate::Keystroke::from_xkb(&state.xkb, modifiers, code);
state.xkb.update_key(code, xkb::KeyDirection::Up);
keystroke
};
window.handle_input(PlatformInput::KeyUp(crate::KeyUpEvent { keystroke }));
}
xcb::Event::X(x::Event::ButtonPress(ev)) => {
let window = self.get_window(ev.event());
let modifiers = super::modifiers_from_state(ev.state());
let position =
Point::new((ev.event_x() as f32).into(), (ev.event_y() as f32).into());
if let Some(button) = super::button_of_key(ev.detail()) {
window.handle_input(PlatformInput::MouseDown(crate::MouseDownEvent {
button,
position,
modifiers,
click_count: 1,
}));
} else if ev.detail() >= 4 && ev.detail() <= 5 {
// https://stackoverflow.com/questions/15510472/scrollwheel-event-in-x11
let delta_x = if ev.detail() == 4 { 1.0 } else { -1.0 };
window.handle_input(PlatformInput::ScrollWheel(crate::ScrollWheelEvent {
position,
delta: ScrollDelta::Lines(Point::new(0.0, delta_x)),
modifiers,
touch_phase: TouchPhase::default(),
}));
} else {
log::warn!("Unknown button press: {ev:?}");
}
}
xcb::Event::X(x::Event::ButtonRelease(ev)) => {
let window = self.get_window(ev.event());
let modifiers = super::modifiers_from_state(ev.state());
let position =
Point::new((ev.event_x() as f32).into(), (ev.event_y() as f32).into());
if let Some(button) = super::button_of_key(ev.detail()) {
window.handle_input(PlatformInput::MouseUp(crate::MouseUpEvent {
button,
position,
modifiers,
click_count: 1,
}));
}
}
xcb::Event::X(x::Event::MotionNotify(ev)) => {
let window = self.get_window(ev.event());
let pressed_button = super::button_from_state(ev.state());
let position =
Point::new((ev.event_x() as f32).into(), (ev.event_y() as f32).into());
let modifiers = super::modifiers_from_state(ev.state());
window.handle_input(PlatformInput::MouseMove(crate::MouseMoveEvent {
pressed_button,
position,
modifiers,
}));
}
xcb::Event::X(x::Event::LeaveNotify(ev)) => {
let window = self.get_window(ev.event());
let pressed_button = super::button_from_state(ev.state());
let position =
Point::new((ev.event_x() as f32).into(), (ev.event_y() as f32).into());
let modifiers = super::modifiers_from_state(ev.state());
window.handle_input(PlatformInput::MouseExited(crate::MouseExitEvent {
pressed_button,
position,
modifiers,
}));
}
_ => {}
}
}
if let Some(ref mut fun) = self.platform_inner.callbacks.lock().quit {
fun();
}
}
fn displays(&self) -> Vec<Rc<dyn PlatformDisplay>> {
let setup = self.xcb_connection.get_setup();
setup
@ -264,10 +324,40 @@ impl Client for X11Client {
));
window_ptr.request_refresh();
let cookie = self
.xcb_connection
.send_request(&xcb::randr::GetScreenResourcesCurrent { window: x_window });
let screen_resources = self.xcb_connection.wait_for_reply(cookie).expect("TODO");
let crtc = screen_resources.crtcs().first().expect("TODO");
let cookie = self.xcb_connection.send_request(&xcb::randr::GetCrtcInfo {
crtc: crtc.to_owned(),
config_timestamp: xcb::x::Time::CurrentTime as u32,
});
let crtc_info = self.xcb_connection.wait_for_reply(cookie).expect("TODO");
let mode_id = crtc_info.mode().resource_id();
let mode = screen_resources
.modes()
.iter()
.find(|m| m.id == mode_id)
.expect("Missing screen mode for crtc specified mode id");
let refresh_millies = mode_refresh_rate_millis(mode);
self.refresh_millis.set(refresh_millies);
self.state
.lock()
.borrow_mut()
.windows
.insert(x_window, Rc::clone(&window_ptr));
Box::new(X11Window(window_ptr))
}
}
// Adatpted from:
// https://docs.rs/winit/0.29.11/src/winit/platform_impl/linux/x11/monitor.rs.html#103-111
pub fn mode_refresh_rate_millis(mode: &xcb::randr::ModeInfo) -> u64 {
let millihertz = mode.dot_clock as u64 * 1_000 / (mode.htotal as u64 * mode.vtotal as u64);
(millihertz as f64 / 1_000_000.) as u64
}

64
crates/gpui/src/platform/linux/x11/client_dispatcher.rs
View File

@ -1,64 +0,0 @@
use std::sync::Arc;
use xcb::x;
use crate::platform::linux::client_dispatcher::ClientDispatcher;
pub(crate) struct X11ClientDispatcher {
xcb_connection: Arc<xcb::Connection>,
x_listener_window: x::Window,
}
impl X11ClientDispatcher {
pub fn new(xcb_connection: &Arc<xcb::Connection>, x_root_index: i32) -> Self {
let x_listener_window = xcb_connection.generate_id();
let screen = xcb_connection
.get_setup()
.roots()
.nth(x_root_index as usize)
.unwrap();
xcb_connection.send_request(&x::CreateWindow {
depth: 0,
wid: x_listener_window,
parent: screen.root(),
x: 0,
y: 0,
width: 1,
height: 1,
border_width: 0,
class: x::WindowClass::InputOnly,
visual: screen.root_visual(),
value_list: &[],
});
Self {
xcb_connection: Arc::clone(xcb_connection),
x_listener_window,
}
}
}
impl Drop for X11ClientDispatcher {
fn drop(&mut self) {
self.xcb_connection.send_request(&x::DestroyWindow {
window: self.x_listener_window,
});
}
}
impl ClientDispatcher for X11ClientDispatcher {
fn dispatch_on_main_thread(&self) {
// Send a message to the invisible window, forcing
// the main loop to wake up and dispatch the runnable.
self.xcb_connection.send_request(&x::SendEvent {
propagate: false,
destination: x::SendEventDest::Window(self.x_listener_window),
event_mask: x::EventMask::NO_EVENT,
event: &x::VisibilityNotifyEvent::new(
self.x_listener_window,
x::Visibility::Unobscured,
),
});
self.xcb_connection.flush().unwrap();
}
}

78
crates/gpui/src/platform/linux/x11/window.rs
View File

@ -4,7 +4,7 @@
use crate::{
platform::blade::BladeRenderer, size, Bounds, GlobalPixels, Modifiers, Pixels, PlatformAtlas,
PlatformDisplay, PlatformInput, PlatformInputHandler, PlatformWindow, Point, PromptLevel,
Scene, Size, WindowAppearance, WindowBounds, WindowOptions, X11Display,
Scene, Size, WindowAppearance, WindowBounds, WindowOptions,
};
use blade_graphics as gpu;
use parking_lot::Mutex;
@ -16,6 +16,7 @@ use xcb::{
};
use std::{
cell::RefCell,
ffi::c_void,
mem,
num::NonZeroU32,
@ -24,6 +25,8 @@ use std::{
sync::{self, Arc},
};
use super::X11Display;
#[derive(Default)]
struct Callbacks {
request_frame: Option<Box<dyn FnMut()>>,
@ -85,12 +88,12 @@ struct RawWindow {
}
pub(crate) struct X11WindowState {
xcb_connection: Arc<xcb::Connection>,
xcb_connection: Rc<xcb::Connection>,
display: Rc<dyn PlatformDisplay>,
raw: RawWindow,
x_window: x::Window,
callbacks: Mutex<Callbacks>,
inner: Mutex<LinuxWindowInner>,
callbacks: RefCell<Callbacks>,
inner: RefCell<LinuxWindowInner>,
}
#[derive(Clone)]
@ -136,7 +139,7 @@ impl rwh::HasDisplayHandle for X11Window {
impl X11WindowState {
pub fn new(
options: WindowOptions,
xcb_connection: &Arc<xcb::Connection>,
xcb_connection: &Rc<xcb::Connection>,
x_main_screen_index: i32,
x_window: x::Window,
atoms: &XcbAtoms,
@ -253,12 +256,12 @@ impl X11WindowState {
let gpu_extent = query_render_extent(xcb_connection, x_window);
Self {
xcb_connection: Arc::clone(xcb_connection),
xcb_connection: xcb_connection.clone(),
display: Rc::new(X11Display::new(xcb_connection, x_screen_index)),
raw,
x_window,
callbacks: Mutex::new(Callbacks::default()),
inner: Mutex::new(LinuxWindowInner {
callbacks: RefCell::new(Callbacks::default()),
inner: RefCell::new(LinuxWindowInner {
bounds,
scale_factor: 1.0,
renderer: BladeRenderer::new(gpu, gpu_extent),
@ -268,23 +271,26 @@ impl X11WindowState {
}
pub fn destroy(&self) {
self.inner.lock().renderer.destroy();
self.inner.borrow_mut().renderer.destroy();
self.xcb_connection.send_request(&x::UnmapWindow {
window: self.x_window,
});
self.xcb_connection.send_request(&x::DestroyWindow {
window: self.x_window,
});
if let Some(fun) = self.callbacks.lock().close.take() {
if let Some(fun) = self.callbacks.borrow_mut().close.take() {
fun();
}
self.xcb_connection.flush().unwrap();
}
pub fn refresh(&self) {
let mut cb = self.callbacks.lock();
if let Some(ref mut fun) = cb.request_frame {
let mut cb = self.callbacks.borrow_mut();
if let Some(mut fun) = cb.request_frame.take() {
drop(cb);
fun();
let mut cb = self.callbacks.borrow_mut();
cb.request_frame = Some(fun);
}
}
@ -292,7 +298,7 @@ impl X11WindowState {
let mut resize_args = None;
let do_move;
{
let mut inner = self.inner.lock();
let mut inner = self.inner.borrow_mut();
let old_bounds = mem::replace(&mut inner.bounds, bounds);
do_move = old_bounds.origin != bounds.origin;
//todo!(linux): use normal GPUI types here, refactor out the double
@ -306,7 +312,7 @@ impl X11WindowState {
}
}
let mut callbacks = self.callbacks.lock();
let mut callbacks = self.callbacks.borrow_mut();
if let Some((content_size, scale_factor)) = resize_args {
if let Some(ref mut fun) = callbacks.resize {
fun(content_size, scale_factor)
@ -330,13 +336,13 @@ impl X11WindowState {
}
pub fn handle_input(&self, input: PlatformInput) {
if let Some(ref mut fun) = self.callbacks.lock().input {
if let Some(ref mut fun) = self.callbacks.borrow_mut().input {
if fun(input.clone()) {
return;
}
}
if let PlatformInput::KeyDown(event) = input {
let mut inner = self.inner.lock();
let mut inner = self.inner.borrow_mut();
if let Some(ref mut input_handler) = inner.input_handler {
if let Some(ime_key) = &event.keystroke.ime_key {
input_handler.replace_text_in_range(None, ime_key);
@ -346,7 +352,7 @@ impl X11WindowState {
}
pub fn set_focused(&self, focus: bool) {
if let Some(ref mut fun) = self.callbacks.lock().active_status_change {
if let Some(ref mut fun) = self.callbacks.borrow_mut().active_status_change {
fun(focus);
}
}
@ -354,15 +360,21 @@ impl X11WindowState {
impl PlatformWindow for X11Window {
fn bounds(&self) -> WindowBounds {
WindowBounds::Fixed(self.0.inner.lock().bounds.map(|v| GlobalPixels(v as f32)))
WindowBounds::Fixed(
self.0
.inner
.borrow_mut()
.bounds
.map(|v| GlobalPixels(v as f32)),
)
}
fn content_size(&self) -> Size<Pixels> {
self.0.inner.lock().content_size()
self.0.inner.borrow_mut().content_size()
}
fn scale_factor(&self) -> f32 {
self.0.inner.lock().scale_factor
self.0.inner.borrow_mut().scale_factor
}
//todo!(linux)
@ -400,11 +412,11 @@ impl PlatformWindow for X11Window {
}
fn set_input_handler(&mut self, input_handler: PlatformInputHandler) {
self.0.inner.lock().input_handler = Some(input_handler);
self.0.inner.borrow_mut().input_handler = Some(input_handler);
}
fn take_input_handler(&mut self) -> Option<PlatformInputHandler> {
self.0.inner.lock().input_handler.take()
self.0.inner.borrow_mut().input_handler.take()
}
//todo!(linux)
@ -464,39 +476,39 @@ impl PlatformWindow for X11Window {
}
fn on_request_frame(&self, callback: Box<dyn FnMut()>) {
self.0.callbacks.lock().request_frame = Some(callback);
self.0.callbacks.borrow_mut().request_frame = Some(callback);
}
fn on_input(&self, callback: Box<dyn FnMut(PlatformInput) -> bool>) {
self.0.callbacks.lock().input = Some(callback);
self.0.callbacks.borrow_mut().input = Some(callback);
}
fn on_active_status_change(&self, callback: Box<dyn FnMut(bool)>) {
self.0.callbacks.lock().active_status_change = Some(callback);
self.0.callbacks.borrow_mut().active_status_change = Some(callback);
}
fn on_resize(&self, callback: Box<dyn FnMut(Size<Pixels>, f32)>) {
self.0.callbacks.lock().resize = Some(callback);
self.0.callbacks.borrow_mut().resize = Some(callback);
}
fn on_fullscreen(&self, callback: Box<dyn FnMut(bool)>) {
self.0.callbacks.lock().fullscreen = Some(callback);
self.0.callbacks.borrow_mut().fullscreen = Some(callback);
}
fn on_moved(&self, callback: Box<dyn FnMut()>) {
self.0.callbacks.lock().moved = Some(callback);
self.0.callbacks.borrow_mut().moved = Some(callback);
}
fn on_should_close(&self, callback: Box<dyn FnMut() -> bool>) {
self.0.callbacks.lock().should_close = Some(callback);
self.0.callbacks.borrow_mut().should_close = Some(callback);
}
fn on_close(&self, callback: Box<dyn FnOnce()>) {
self.0.callbacks.lock().close = Some(callback);
self.0.callbacks.borrow_mut().close = Some(callback);
}
fn on_appearance_changed(&self, callback: Box<dyn FnMut()>) {
self.0.callbacks.lock().appearance_changed = Some(callback);
self.0.callbacks.borrow_mut().appearance_changed = Some(callback);
}
//todo!(linux)
@ -505,12 +517,12 @@ impl PlatformWindow for X11Window {
}
fn draw(&self, scene: &Scene) {
let mut inner = self.0.inner.lock();
let mut inner = self.0.inner.borrow_mut();
inner.renderer.draw(scene);
}
fn sprite_atlas(&self) -> sync::Arc<dyn PlatformAtlas> {
let inner = self.0.inner.lock();
let inner = self.0.inner.borrow_mut();
inner.renderer.sprite_atlas().clone()
}