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wry/src/ifs/wl_seat/mod.rs
2022-01-09 14:36:34 +01:00

468 lines
15 KiB
Rust

mod types;
pub mod wl_keyboard;
pub mod wl_pointer;
pub mod wl_touch;
use crate::backend::{KeyState, OutputId, ScrollAxis, Seat, SeatEvent};
use crate::client::{AddObj, Client, ClientId, DynEventFormatter};
use crate::fixed::Fixed;
use crate::globals::{Global, GlobalName};
use crate::ifs::wl_seat::wl_keyboard::{WlKeyboard, WlKeyboardId};
use crate::ifs::wl_seat::wl_pointer::{WlPointer, WlPointerId};
use crate::ifs::wl_seat::wl_touch::WlTouch;
use crate::object::{Interface, Object, ObjectId};
use crate::tree::{Node, NodeBase, NodeKind, ToplevelNode};
use crate::utils::buffd::MsgParser;
use crate::utils::copyhashmap::CopyHashMap;
use crate::xkbcommon::XkbContext;
use crate::State;
use ahash::{AHashMap, AHashSet};
use bstr::ByteSlice;
use std::cell::{Cell, RefCell};
use std::io::Write;
use std::rc::Rc;
pub use types::*;
use uapi::{c, OwnedFd};
use crate::utils::clonecell::CloneCell;
id!(WlSeatId);
const GET_POINTER: u32 = 0;
const GET_KEYBOARD: u32 = 1;
const GET_TOUCH: u32 = 2;
const RELEASE: u32 = 3;
const CAPABILITIES: u32 = 0;
const NAME: u32 = 1;
const POINTER: u32 = 1;
const KEYBOARD: u32 = 2;
#[allow(dead_code)]
const TOUCH: u32 = 4;
#[allow(dead_code)]
const MISSING_CAPABILITY: u32 = 0;
const BTN_LEFT: u32 = 0x110;
pub struct WlSeatGlobal {
name: GlobalName,
state: Rc<State>,
_seat: Rc<dyn Seat>,
move_: Cell<bool>,
move_start_pos: Cell<(Fixed, Fixed)>,
extents_start_pos: Cell<(i32, i32)>,
pos: Cell<(Fixed, Fixed)>,
cursor_node: CloneCell<Rc<dyn Node>>,
keyboard_node: CloneCell<Rc<dyn Node>>,
pressed_keys: RefCell<AHashSet<u32>>,
bindings: RefCell<AHashMap<ClientId, AHashMap<WlSeatId, Rc<WlSeatObj>>>>,
layout: Rc<OwnedFd>,
layout_size: u32,
}
impl WlSeatGlobal {
pub fn new(name: GlobalName, state: &Rc<State>, seat: &Rc<dyn Seat>) -> Self {
let (layout, layout_size) = {
let ctx = XkbContext::new().unwrap();
let keymap = ctx.default_keymap().unwrap();
let string = keymap.as_str().unwrap();
let mut memfd =
uapi::memfd_create("keymap", c::MFD_CLOEXEC | c::MFD_ALLOW_SEALING).unwrap();
memfd.write_all(string.as_bytes()).unwrap();
memfd.write_all(&[0]).unwrap();
uapi::lseek(memfd.raw(), 0, c::SEEK_SET).unwrap();
uapi::fcntl_add_seals(
memfd.raw(),
c::F_SEAL_SEAL | c::F_SEAL_GROW | c::F_SEAL_SHRINK | c::F_SEAL_WRITE,
)
.unwrap();
(Rc::new(memfd), (string.len() + 1) as _)
};
Self {
name,
state: state.clone(),
_seat: seat.clone(),
move_: Cell::new(false),
move_start_pos: Cell::new((Fixed(0), Fixed(0))),
extents_start_pos: Cell::new((0, 0)),
pos: Cell::new((Fixed(0), Fixed(0))),
cursor_node: CloneCell::new(state.root.clone()),
keyboard_node: CloneCell::new(state.root.clone()),
pressed_keys: RefCell::new(Default::default()),
bindings: Default::default(),
layout,
layout_size,
}
}
pub fn move_(&self, node: &Rc<ToplevelNode>) {
let cursor = self.cursor_node.get();
if cursor.id() == node.id() {
self.move_.set(true);
self.move_start_pos.set(self.pos.get());
let ex = node.common.extents.get();
self.extents_start_pos.set((ex.x, ex.y));
}
}
pub async fn event(&self, event: SeatEvent) {
match event {
SeatEvent::OutputPosition(o, x, y) => self.output_position_event(o, x, y).await,
SeatEvent::Motion(dx, dy) => self.motion_event(dx, dy).await,
SeatEvent::Button(b, s) => self.button_event(b, s).await,
SeatEvent::Scroll(d, a) => self.scroll_event(d, a).await,
SeatEvent::Key(k, s) => self.key_event(k, s).await,
}
}
async fn output_position_event(&self, output: OutputId, mut x: Fixed, mut y: Fixed) {
let output = match self.state.outputs.get(&output) {
Some(o) => o,
_ => return,
};
x += Fixed::from_int(output.x.get());
y += Fixed::from_int(output.y.get());
self.handle_new_position(x, y).await;
}
fn for_each_seat<C>(&self, client: ClientId, mut f: C)
where
C: FnMut(&Rc<WlSeatObj>),
{
let bindings = self.bindings.borrow();
if let Some(hm) = bindings.get(&client) {
for seat in hm.values() {
f(seat);
}
}
}
fn for_each_pointer<C>(&self, client: ClientId, mut f: C)
where
C: FnMut(&Rc<WlPointer>),
{
self.for_each_seat(client, |seat| {
let pointers = seat.pointers.lock();
for pointer in pointers.values() {
f(pointer);
}
})
}
fn for_each_kb<C>(&self, client: ClientId, mut f: C)
where
C: FnMut(&Rc<WlKeyboard>),
{
self.for_each_seat(client, |seat| {
let keyboards = seat.keyboards.lock();
for keyboard in keyboards.values() {
f(keyboard);
}
})
}
async fn tl_pointer_event<F>(&self, tl: &ToplevelNode, mut f: F)
where
F: FnMut(&Rc<WlPointer>) -> DynEventFormatter,
{
let client = &tl.surface.surface.surface.client;
self.for_each_pointer(client.id, |p| {
client.event_locked(f(p));
});
let _ = client.flush().await;
}
async fn tl_kb_event<F>(&self, tl: &ToplevelNode, mut f: F)
where
F: FnMut(&Rc<WlKeyboard>) -> DynEventFormatter,
{
let client = &tl.surface.surface.surface.client;
self.for_each_kb(client.id, |p| {
client.event_locked(f(p));
});
let _ = client.flush().await;
}
async fn handle_new_position(&self, x: Fixed, y: Fixed) {
self.pos.set((x, y));
let cur_node = self.cursor_node.get();
if self.move_.get() {
if let NodeKind::Toplevel(tn) = cur_node.into_kind() {
let (move_start_x, move_start_y) = self.move_start_pos.get();
let (move_start_ex, move_start_ey) = self.extents_start_pos.get();
let mut ex = tn.common.extents.get();
ex.x = (x - move_start_x).round_down() + move_start_ex;
ex.y = (y - move_start_y).round_down() + move_start_ey;
tn.common.extents.set(ex);
}
return;
}
let x_int = x.round_down();
let y_int = y.round_down();
let (node_dyn, x_int, y_int) = self.state.root.clone().find_node_at(x_int, y_int);
let mut x = x.apply_fract(x_int);
let mut y = x.apply_fract(y_int);
let node = node_dyn.clone().into_kind();
let mut enter = false;
if node_dyn.id() != cur_node.id() {
if let NodeKind::Toplevel(tl) = cur_node.into_kind() {
self.tl_pointer_event(&tl, |p| p.leave(0, tl.surface.surface.surface.id))
.await;
}
enter = true;
self.cursor_node.set(node_dyn);
}
if let NodeKind::Toplevel(tl) = &node {
let ee = tl.surface.surface.surface.effective_extents.get();
// log::trace!("{} {}", Fixed::from_int(ee.x1), Fixed::from_int(ee.y1));
x += Fixed::from_int(ee.x1);
y += Fixed::from_int(ee.y1);
if enter {
self.tl_pointer_event(tl, |p| p.enter(0, tl.surface.surface.surface.id, x, y))
.await;
}
self.tl_pointer_event(tl, |p| p.motion(0, x, y)).await;
}
}
async fn motion_event(&self, dx: Fixed, dy: Fixed) {
let (x, y) = self.pos.get();
self.handle_new_position(x + dx, y + dy).await;
}
async fn button_event(&self, button: u32, state: KeyState) {
if state == KeyState::Released {
self.move_.set(false);
}
let node = self.cursor_node.get();
let mut enter = false;
if button == BTN_LEFT {
let kb_node = self.keyboard_node.get();
if kb_node.id() != node.id() {
enter = true;
if let NodeKind::Toplevel(tl) = kb_node.clone().into_kind() {
self.tl_kb_event(&tl, |k| k.leave(0, tl.surface.surface.surface.id))
.await;
}
self.keyboard_node.set(node.clone());
}
}
if let NodeKind::Toplevel(node) = node.into_kind() {
let state = match state {
KeyState::Released => wl_pointer::RELEASED,
KeyState::Pressed => wl_pointer::PRESSED,
};
self.tl_pointer_event(&node, |p| p.button(0, 0, button, state))
.await;
if enter {
self.tl_kb_event(&node, |k| {
k.enter(
0,
node.surface.surface.surface.id,
self.pressed_keys.borrow().iter().cloned().collect(),
)
})
.await;
}
}
}
async fn scroll_event(&self, delta: i32, axis: ScrollAxis) {
let node = self.cursor_node.get().into_kind();
if let NodeKind::Toplevel(node) = node {
let axis = match axis {
ScrollAxis::Horizontal => wl_pointer::HORIZONTAL_SCROLL,
ScrollAxis::Vertical => wl_pointer::VERTICAL_SCROLL,
};
self.tl_pointer_event(&node, |p| p.axis(0, axis, Fixed::from_int(delta)))
.await;
}
}
async fn key_event(&self, key: u32, state: KeyState) {
let state = {
let mut pk = self.pressed_keys.borrow_mut();
match state {
KeyState::Released => {
if !pk.remove(&key) {
return;
}
log::info!("release");
wl_keyboard::RELEASED
}
KeyState::Pressed => {
if !pk.insert(key) {
return;
}
log::info!("press");
wl_keyboard::PRESSED
}
}
};
let node = self.keyboard_node.get().into_kind();
if let NodeKind::Toplevel(node) = node {
self.tl_kb_event(&node, |k| k.key(0, 0, key, state)).await;
}
}
async fn bind_(
self: Rc<Self>,
id: WlSeatId,
client: &Rc<Client>,
version: u32,
) -> Result<(), WlSeatError> {
let obj = Rc::new(WlSeatObj {
global: self.clone(),
id,
client: client.clone(),
pointers: Default::default(),
keyboards: Default::default(),
version,
});
client.add_client_obj(&obj)?;
client.event(obj.capabilities()).await?;
{
let mut bindings = self.bindings.borrow_mut();
let bindings = bindings.entry(client.id).or_insert_with(Default::default);
bindings.insert(id, obj.clone());
}
Ok(())
}
}
bind!(WlSeatGlobal);
impl Global for WlSeatGlobal {
fn name(&self) -> GlobalName {
self.name
}
fn singleton(&self) -> bool {
false
}
fn interface(&self) -> Interface {
Interface::WlSeat
}
fn version(&self) -> u32 {
7
}
fn break_loops(&self) {
self.bindings.borrow_mut().clear();
}
}
pub struct WlSeatObj {
global: Rc<WlSeatGlobal>,
id: WlSeatId,
client: Rc<Client>,
pointers: CopyHashMap<WlPointerId, Rc<WlPointer>>,
keyboards: CopyHashMap<WlKeyboardId, Rc<WlKeyboard>>,
version: u32,
}
impl WlSeatObj {
fn capabilities(self: &Rc<Self>) -> DynEventFormatter {
Box::new(Capabilities {
obj: self.clone(),
capabilities: POINTER | KEYBOARD,
})
}
pub fn move_(&self, node: &Rc<ToplevelNode>) {
self.global.move_(node);
}
async fn get_pointer(
self: &Rc<Self>,
parser: MsgParser<'_, '_>,
) -> Result<(), GetPointerError> {
let req: GetPointer = self.client.parse(&**self, parser)?;
let p = Rc::new(WlPointer::new(req.id, self));
self.client.add_client_obj(&p)?;
self.pointers.set(req.id, p);
Ok(())
}
async fn get_keyboard(
self: &Rc<Self>,
parser: MsgParser<'_, '_>,
) -> Result<(), GetKeyboardError> {
let req: GetKeyboard = self.client.parse(&**self, parser)?;
let p = Rc::new(WlKeyboard::new(req.id, self));
self.client.add_client_obj(&p)?;
self.keyboards.set(req.id, p.clone());
self.client
.event(p.keymap(wl_keyboard::XKB_V1, p.keymap_fd()?, self.global.layout_size))
.await?;
Ok(())
}
async fn get_touch(self: &Rc<Self>, parser: MsgParser<'_, '_>) -> Result<(), GetTouchError> {
let req: GetTouch = self.client.parse(&**self, parser)?;
let p = Rc::new(WlTouch::new(req.id, self));
self.client.add_client_obj(&p)?;
Ok(())
}
async fn release(&self, parser: MsgParser<'_, '_>) -> Result<(), ReleaseError> {
let _req: Release = self.client.parse(self, parser)?;
{
let mut bindings = self.global.bindings.borrow_mut();
if let Some(hm) = bindings.get_mut(&self.client.id) {
hm.remove(&self.id);
}
}
self.client.remove_obj(self).await?;
Ok(())
}
async fn handle_request_(
self: &Rc<Self>,
request: u32,
parser: MsgParser<'_, '_>,
) -> Result<(), WlSeatError> {
match request {
GET_POINTER => self.get_pointer(parser).await?,
GET_KEYBOARD => self.get_keyboard(parser).await?,
GET_TOUCH => self.get_touch(parser).await?,
RELEASE => self.release(parser).await?,
_ => unreachable!(),
}
Ok(())
}
}
handle_request!(WlSeatObj);
impl Object for WlSeatObj {
fn id(&self) -> ObjectId {
self.id.into()
}
fn interface(&self) -> Interface {
Interface::WlSeat
}
fn num_requests(&self) -> u32 {
if self.version < 5 {
GET_TOUCH + 1
} else {
RELEASE + 1
}
}
fn break_loops(&self) {
{
let mut bindings = self.global.bindings.borrow_mut();
if let Some(hm) = bindings.get_mut(&self.client.id) {
hm.remove(&self.id);
}
}
self.pointers.clear();
self.keyboards.clear();
}
}