cosmic-comp/src/xwayland.rs
2023-01-24 17:40:33 +01:00

473 lines
16 KiB
Rust

use std::ffi::OsString;
use crate::{
backend::render::cursor::Cursor,
shell::{CosmicSurface, Ordering, Shell},
state::{Data, State},
utils::prelude::*,
wayland::{handlers::screencopy::PendingScreencopyBuffers, protocols::screencopy::SessionType},
};
use smithay::{
backend::{drm::DrmNode, renderer::element::Id},
desktop::space::SpaceElement,
reexports::x11rb::protocol::xproto::Window as X11Window,
utils::{Logical, Point, Rectangle, Size},
xwayland::{
xwm::{Reorder, XwmId},
X11Surface, X11Wm, XWayland, XWaylandEvent, XwmHandler,
},
};
pub struct XWaylandState {
pub xwm: Option<X11Wm>,
pub display: Option<u32>,
#[allow(unused)]
xwayland: XWayland,
}
impl State {
pub fn launch_xwayland(&mut self, drm_node: Option<DrmNode>) {
if self.common.xwayland_state.contains_key(&drm_node) {
return;
}
let (xwayland, source) = XWayland::new(None, &self.common.display_handle);
let token =
match self
.common
.event_loop_handle
.insert_source(source, move |event, _, data| match event {
XWaylandEvent::Ready {
connection,
client,
client_fd: _,
display,
} => {
let mut wm = match X11Wm::start_wm(
data.state.common.event_loop_handle.clone(),
data.state.common.display_handle.clone(),
connection,
client,
None,
) {
Ok(wm) => wm,
Err(err) => {
slog_scope::error!("Failed to start Xwayland WM: {}", err);
return;
}
};
let cursor = Cursor::load();
let image = cursor.get_image(1, 0);
if let Err(err) = wm.set_cursor(
&image.pixels_rgba,
Size::from((image.width as u16, image.height as u16)),
Point::from((image.xhot as u16, image.yhot as u16)),
) {
slog_scope::warn!(
"Failed to set default cursor for Xwayland WM ({:?}): {}",
wm.id(),
err
);
}
let mut xwayland_state =
data.state.common.xwayland_state.get_mut(&drm_node).unwrap();
xwayland_state.xwm = Some(wm);
xwayland_state.display = Some(display);
}
XWaylandEvent::Exited => {
if let Some(mut xwayland_state) =
data.state.common.xwayland_state.remove(&drm_node)
{
xwayland_state.xwm = None;
xwayland_state.display = None;
}
}
}) {
Ok(token) => token,
Err(err) => {
slog_scope::error!("Failed to listen for Xwayland: {}", err);
return;
}
};
match xwayland.start(
self.common.event_loop_handle.clone(),
None,
std::iter::empty::<(OsString, OsString)>(),
|map| {
if let Some(node) = drm_node {
map.insert_if_missing(|| node);
}
},
) {
Ok(_) => {
self.common.xwayland_state.insert(
drm_node,
XWaylandState {
xwayland,
xwm: None,
display: None,
},
);
}
Err(err) => {
slog_scope::error!("Failed to start Xwayland: {}", err);
self.common.event_loop_handle.remove(token);
}
}
}
}
impl XwmHandler for Data {
fn xwm_state(&mut self, xwm: XwmId) -> &mut X11Wm {
self.state
.common
.xwayland_state
.values_mut()
.flat_map(|state| &mut state.xwm)
.find(|wm| wm.id() == xwm)
.unwrap()
}
fn new_window(&mut self, _xwm: XwmId, _window: X11Surface) {}
fn new_override_redirect_window(&mut self, _xwm: XwmId, _window: X11Surface) {}
fn destroyed_window(&mut self, _xwm: XwmId, _window: X11Surface) {}
fn map_window_request(&mut self, _xwm: XwmId, window: X11Surface) {
if let Err(err) = window.set_mapped(true) {
slog_scope::warn!(
"Failed to send Xwayland Mapped-Event (for window {:?}): {}",
window,
err
);
}
if self
.state
.common
.shell
.element_for_surface(&CosmicSurface::X11(window.clone()))
.is_some()
{
return;
}
let window = CosmicSurface::X11(window);
self.state
.common
.shell
.toplevel_info_state
.new_toplevel(&window);
let seat = self.state.common.last_active_seat().clone();
let output = seat.active_output();
self.state
.common
.shell
.pending_windows
.push((window.clone(), seat));
Shell::map_window(&mut self.state, &window, &output);
}
fn mapped_override_redirect_window(&mut self, _xwm: XwmId, window: X11Surface) {
if self
.state
.common
.shell
.override_redirect_windows
.iter()
.any(|or| or.surface == window)
{
return;
}
Shell::map_override_redirect(&mut self.state, window)
}
fn unmapped_window(&mut self, _xwm: XwmId, window: X11Surface) {
if window.is_override_redirect() {
self.state
.common
.shell
.override_redirect_windows
.retain(|or| or.surface != window);
} else if let Some((element, space)) = self
.state
.common
.shell
.element_for_surface(&CosmicSurface::X11(window.clone()))
.cloned()
.and_then(|element| {
self.state
.common
.shell
.space_for_mut(&element)
.map(|space| (element, space))
})
{
space.unmap(&element);
}
let outputs = if let Some(wl_surface) = window.wl_surface() {
self.state
.common
.shell
.visible_outputs_for_surface(&wl_surface)
.collect::<Vec<_>>()
} else {
self.state
.common
.shell
.outputs()
.cloned()
.collect::<Vec<_>>()
};
for output in outputs.iter() {
self.state.common.shell.active_space_mut(output).refresh();
}
// screencopy
let mut scheduled_sessions = window
.wl_surface()
.map(|wl_surface| self.state.schedule_workspace_sessions(&wl_surface))
.unwrap_or_default();
for output in outputs.into_iter() {
if let Some(sessions) = output.user_data().get::<PendingScreencopyBuffers>() {
scheduled_sessions
.get_or_insert_with(Vec::new)
.extend(sessions.borrow_mut().drain(..));
}
self.state.backend.schedule_render(
&self.state.common.event_loop_handle,
&output,
scheduled_sessions.as_ref().map(|sessions| {
sessions
.iter()
.filter(|(s, _)| match s.session_type() {
SessionType::Output(o) | SessionType::Workspace(o, _)
if o == output =>
{
true
}
_ => false,
})
.cloned()
.collect::<Vec<_>>()
}),
);
}
}
fn configure_request(
&mut self,
_xwm: XwmId,
window: X11Surface,
x: Option<i32>,
y: Option<i32>,
w: Option<u32>,
h: Option<u32>,
_reorder: Option<Reorder>,
) {
// We only allow floating X11 windows to resize themselves. Nothing else
let mut current_geo = window.geometry();
if let Some(mapped) = self
.state
.common
.shell
.element_for_surface(&CosmicSurface::X11(window.clone()))
{
let space = self.state.common.shell.space_for(mapped).unwrap();
if space.is_floating(mapped) {
mapped.set_geometry(Rectangle::from_loc_and_size(
current_geo.loc,
(
w.map(|w| w as i32).unwrap_or(current_geo.size.w),
h.map(|h| h as i32).unwrap_or(current_geo.size.h),
),
))
}
} else {
if let Some(x) = x {
current_geo.loc.x = x;
}
if let Some(y) = y {
current_geo.loc.y = y;
}
if let Some(w) = w {
current_geo.size.w = w as i32;
}
if let Some(h) = h {
current_geo.size.h = h as i32;
}
// the window is not yet mapped. Lets give it what it wants
let _ = window.configure(current_geo);
}
}
fn configure_notify(
&mut self,
_xwm: XwmId,
window: X11Surface,
_geometry: Rectangle<i32, Logical>,
above: Option<X11Window>,
) {
if window.is_override_redirect() {
let ordering = match above {
None => Ordering::Below,
Some(id) => self
.state
.common
.shell
.override_redirect_windows
.iter()
.find_map(|or| {
if or.surface.window_id() == id {
or.surface
.wl_surface()
.map(|s| Id::from_wayland_resource(&s))
} else {
None
}
})
.or_else(|| {
self.state
.common
.shell
.workspaces
.spaces()
.flat_map(|s| s.windows())
.find_map(|w| {
if let CosmicSurface::X11(w) = w {
if w.window_id() == id || w.mapped_window_id() == Some(id) {
return w
.wl_surface()
.map(|s| Id::from_wayland_resource(&s));
}
}
None
})
})
.map(Ordering::AboveWindow)
.unwrap_or(Ordering::Above),
};
if let Some(or) = self
.state
.common
.shell
.override_redirect_windows
.iter_mut()
.find(|or| or.surface == window)
{
or.above = ordering;
}
let geo = window.geometry();
for (output, overlap) in self.state.common.shell.outputs().cloned().map(|o| {
let intersection = o.geometry().intersection(geo);
(o, intersection)
}) {
if let Some(overlap) = overlap {
window.output_enter(&output, overlap);
} else {
window.output_leave(&output);
}
}
}
}
fn resize_request(
&mut self,
_xwm: XwmId,
window: X11Surface,
_button: u32,
resize_edge: smithay::xwayland::xwm::ResizeEdge,
) {
if let Some(wl_surface) = window.wl_surface() {
let seat = self.state.common.last_active_seat().clone();
Shell::resize_request(
&mut self.state,
&wl_surface,
&seat,
None,
resize_edge.into(),
)
}
}
fn move_request(&mut self, _xwm: XwmId, window: X11Surface, _button: u32) {
if let Some(wl_surface) = window.wl_surface() {
let seat = self.state.common.last_active_seat().clone();
Shell::move_request(&mut self.state, &wl_surface, &seat, None)
}
}
fn maximize_request(&mut self, _xwm: XwmId, window: X11Surface) {
let seat = self.state.common.last_active_seat();
let output = seat.active_output();
let surface = CosmicSurface::X11(window);
if let Some(mapped) = self
.state
.common
.shell
.element_for_surface(&surface)
.cloned()
{
if let Some(workspace) = self.state.common.shell.space_for_mut(&mapped) {
let (window, _) = mapped.windows().find(|(w, _)| w == &surface).unwrap();
workspace.maximize_request(&window, &output)
}
}
}
fn unmaximize_request(&mut self, _xwm: XwmId, window: X11Surface) {
let surface = CosmicSurface::X11(window);
if let Some(mapped) = self
.state
.common
.shell
.element_for_surface(&surface)
.cloned()
{
if let Some(workspace) = self.state.common.shell.space_for_mut(&mapped) {
let (window, _) = mapped.windows().find(|(w, _)| w == &surface).unwrap();
workspace.unmaximize_request(&window);
}
}
}
fn fullscreen_request(&mut self, _xwm: XwmId, window: X11Surface) {
let seat = self.state.common.last_active_seat();
let output = seat.active_output();
let surface = CosmicSurface::X11(window);
if let Some(mapped) = self
.state
.common
.shell
.element_for_surface(&surface)
.cloned()
{
if let Some(workspace) = self.state.common.shell.space_for_mut(&mapped) {
let (window, _) = mapped.windows().find(|(w, _)| w == &surface).unwrap();
workspace.fullscreen_request(&window, &output)
}
}
}
fn unfullscreen_request(&mut self, _xwm: XwmId, window: X11Surface) {
let surface = CosmicSurface::X11(window);
if let Some(mapped) = self
.state
.common
.shell
.element_for_surface(&surface)
.cloned()
{
if let Some(workspace) = self.state.common.shell.space_for_mut(&mapped) {
let (window, _) = mapped.windows().find(|(w, _)| w == &surface).unwrap();
workspace.unfullscreen_request(&window)
}
}
}
}