use crate::blocks_cache::BlocksCache;
use crate::event_loop::EventLoop;
use crate::output::{Output, PendingOutput};
use crate::protocol::*;
use crate::wm_info_provider;
use std::fmt::Display;
use std::os::unix::io::{AsRawFd, RawFd};
use std::path::Path;
use wayrs_client::global::{GlobalExt, Globals, GlobalsExt};
use wayrs_client::proxy::Proxy;
use wayrs_client::{Connection, EventCtx};
use wayrs_utils::cursor::{CursorImage, CursorShape, CursorTheme, ThemedPointer};
use wayrs_utils::seats::{SeatHandler, Seats};
use wayrs_utils::shm_alloc::ShmAlloc;
use crate::{
bar::Bar, config::Config, i3bar_protocol::Block, pointer_btn::PointerBtn,
shared_state::SharedState, status_cmd::StatusCmd,
};
pub struct State {
pub wl_compositor: WlCompositor,
pub layer_shell: ZwlrLayerShellV1,
pub viewporter: WpViewporter,
pub fractional_scale_manager: Option<WpFractionalScaleManagerV1>,
seats: Seats,
pointers: Vec<Pointer>,
pub pending_outputs: Vec<PendingOutput>,
pub hidden: bool,
pub bars: Vec<Bar>,
pub shared_state: SharedState,
cursor_theme: CursorTheme,
default_cursor: Option<CursorImage>,
}
struct Pointer {
seat: WlSeat,
pointer: WlPointer,
themed_pointer: ThemedPointer,
current_surface: Option<WlSurface>,
x: f64,
y: f64,
pending_button: Option<PointerBtn>,
pending_scroll: f64,
scroll_frame: ScrollFrame,
}
impl State {
pub fn new(
conn: &mut Connection<Self>,
globals: &Globals,
event_loop: &mut EventLoop,
config_path: Option<&Path>,
) -> Self {
let mut error = Ok(());
let config = Config::new(config_path)
.map_err(|e| error = Err(e))
.unwrap_or_default();
let status_cmd = config
.command
.as_ref()
.and_then(|cmd| StatusCmd::new(cmd).map_err(|e| error = Err(e)).ok());
conn.add_registry_cb(wl_registry_cb);
let wl_compositor = globals.bind(conn, 4..=5).unwrap();
let cursor_theme = CursorTheme::new(conn, globals, wl_compositor);
let default_cursor = cursor_theme
.get_image(CursorShape::Default)
.map_err(|e| error = Err(e.into()))
.ok();
let wm_info_provider = wm_info_provider::bind(conn, globals, &config.wm);
wm_info_provider.register(event_loop);
let mut this = Self {
wl_compositor,
layer_shell: globals.bind(conn, 1..=4).unwrap(),
viewporter: globals.bind(conn, 1..=1).unwrap(),
fractional_scale_manager: globals.bind(conn, 1..=1).ok(),
seats: Seats::bind(conn, globals),
pointers: Vec::new(),
pending_outputs: globals
.iter()
.filter(|g| g.is::<WlOutput>())
.map(|g| PendingOutput::bind(conn, g))
.collect(),
hidden: false,
bars: Vec::new(),
shared_state: SharedState {
shm: ShmAlloc::bind(conn, globals).unwrap(),
config,
status_cmd,
blocks_cache: BlocksCache::default(),
wm_info_provider,
},
cursor_theme,
default_cursor,
};
if let Err(e) = error {
this.set_error(conn, e.to_string());
}
this
}
pub fn set_blocks(&mut self, conn: &mut Connection<Self>, blocks: Vec<Block>) {
self.shared_state
.blocks_cache
.process_new_blocks(&self.shared_state.config, blocks);
self.draw_all(conn);
}
pub fn set_error(&mut self, conn: &mut Connection<Self>, error: impl Display) {
self.set_blocks(
conn,
vec![Block {
full_text: error.to_string(),
..Default::default()
}],
);
}
pub fn draw_all(&mut self, conn: &mut Connection<Self>) {
for bar in &mut self.bars {
bar.frame(conn, &mut self.shared_state);
}
}
pub fn status_cmd_fd(&self) -> Option<RawFd> {
self.shared_state
.status_cmd
.as_ref()
.map(|cmd| cmd.output.as_raw_fd())
}
pub fn register_output(&mut self, conn: &mut Connection<Self>, output: Output) {
if !self.shared_state.config.output_enabled(&output.name) {
return;
}
self.shared_state.wm_info_provider.new_ouput(conn, &output);
let mut bar = Bar::new(conn, self, output);
bar.set_tags(self.shared_state.wm_info_provider.get_tags(&bar.output));
if !self.hidden {
bar.show(conn, &self.shared_state);
}
self.bars.push(bar);
}
pub fn drop_bar(&mut self, conn: &mut Connection<Self>, bar_index: usize) {
let bar = self.bars.swap_remove(bar_index);
self.shared_state
.wm_info_provider
.output_removed(conn, &bar.output);
bar.destroy(conn);
}
pub fn toggle_visibility(&mut self, conn: &mut Connection<Self>) {
self.hidden = !self.hidden;
for bar in &mut self.bars {
if self.hidden {
bar.hide(conn);
} else {
bar.show(conn, &self.shared_state);
}
}
}
fn for_each_bar<F: FnMut(&mut Bar, &mut SharedState)>(
&mut self,
output: Option<WlOutput>,
mut f: F,
) {
match output {
Some(output) => f(
self.bars
.iter_mut()
.find(|b| b.output.wl == output)
.unwrap(),
&mut self.shared_state,
),
None => self
.bars
.iter_mut()
.for_each(|b| f(b, &mut self.shared_state)),
}
}
pub fn tags_updated(&mut self, conn: &mut Connection<Self>, output: Option<WlOutput>) {
self.for_each_bar(output, |bar, ss| {
bar.set_tags(ss.wm_info_provider.get_tags(&bar.output));
bar.frame(conn, ss);
});
}
pub fn layout_name_updated(&mut self, conn: &mut Connection<Self>, output: Option<WlOutput>) {
self.for_each_bar(output, |bar, ss| {
bar.set_layout_name(ss.wm_info_provider.get_layout_name(&bar.output));
bar.frame(conn, ss);
});
}
pub fn mode_name_updated(&mut self, conn: &mut Connection<Self>, output: Option<WlOutput>) {
self.for_each_bar(output, |bar, ss| {
bar.set_mode_name(ss.wm_info_provider.get_mode_name(&bar.output));
bar.frame(conn, ss);
});
}
}
impl SeatHandler for State {
fn get_seats(&mut self) -> &mut Seats {
&mut self.seats
}
fn pointer_added(&mut self, conn: &mut Connection<Self>, seat: WlSeat) {
assert!(seat.version() >= 5);
let pointer = seat.get_pointer_with_cb(conn, wl_pointer_cb);
self.pointers.push(Pointer {
seat,
pointer,
themed_pointer: self.cursor_theme.get_themed_pointer(conn, pointer),
current_surface: None,
x: 0.0,
y: 0.0,
pending_button: None,
pending_scroll: 0.0,
scroll_frame: ScrollFrame::default(),
});
}
fn pointer_removed(&mut self, conn: &mut Connection<Self>, seat: WlSeat) {
let pointer_i = self.pointers.iter().position(|p| p.seat == seat).unwrap();
let pointer = self.pointers.swap_remove(pointer_i);
pointer.themed_pointer.destroy(conn);
pointer.pointer.release(conn);
}
}
fn wl_registry_cb(conn: &mut Connection<State>, state: &mut State, event: &wl_registry::Event) {
match event {
wl_registry::Event::Global(global) if global.is::<WlOutput>() => {
state
.pending_outputs
.push(PendingOutput::bind(conn, global));
}
wl_registry::Event::GlobalRemove(name) => {
if let Some(bar_index) = state
.bars
.iter()
.position(|bar| bar.output.reg_name == *name)
{
state.drop_bar(conn, bar_index);
}
}
_ => (),
}
}
fn wl_pointer_cb(ctx: EventCtx<State, WlPointer>) {
let pointer = ctx
.state
.pointers
.iter_mut()
.find(|p| p.pointer == ctx.proxy)
.unwrap();
use wl_pointer::Event;
match ctx.event {
Event::Frame => {
let btn = pointer.pending_button.take();
let scroll = pointer.scroll_frame.finalize();
if let Some(surface) = pointer.current_surface {
let bar = ctx
.state
.bars
.iter_mut()
.find(|bar| bar.surface == surface)
.unwrap();
if let Some(btn) = btn {
bar.click(
ctx.conn,
&mut ctx.state.shared_state,
btn,
pointer.seat,
pointer.x,
pointer.y,
)
.unwrap();
}
if scroll.is_finger && ctx.state.shared_state.config.invert_touchpad_scrolling {
pointer.pending_scroll -= scroll.absolute;
} else {
pointer.pending_scroll += scroll.absolute;
}
if scroll.stop {
pointer.pending_scroll = 0.0;
}
let btn = if pointer.pending_scroll >= 15.0 {
pointer.pending_scroll = 0.0;
Some(PointerBtn::WheelDown)
} else if pointer.pending_scroll <= -15.0 {
pointer.pending_scroll = 0.0;
Some(PointerBtn::WheelUp)
} else {
None
};
if let Some(btn) = btn {
bar.click(
ctx.conn,
&mut ctx.state.shared_state,
btn,
pointer.seat,
pointer.x,
pointer.y,
)
.unwrap();
}
}
}
Event::Enter(args) => {
let bar = ctx
.state
.bars
.iter()
.find(|bar| bar.surface.id() == args.surface)
.unwrap();
pointer.current_surface = Some(bar.surface);
pointer.x = args.surface_x.as_f64();
pointer.y = args.surface_y.as_f64();
if let Some(default_cursor) = &ctx.state.default_cursor {
pointer.themed_pointer.set_cursor(
ctx.conn,
&mut ctx.state.shared_state.shm,
default_cursor,
bar.output.scale,
args.serial,
);
}
}
Event::Leave(_) => pointer.current_surface = None,
Event::Motion(args) => {
pointer.x = args.surface_x.as_f64();
pointer.y = args.surface_y.as_f64();
}
Event::Button(args) => {
if args.state == wl_pointer::ButtonState::Pressed {
pointer.pending_button = Some(args.button.into());
}
}
Event::Axis(args) => {
if args.axis == wl_pointer::Axis::VerticalScroll {
pointer.scroll_frame.absolute += args.value.as_f64();
}
}
Event::AxisSource(source) => {
pointer.scroll_frame.is_finger = source == wl_pointer::AxisSource::Finger;
}
Event::AxisStop(args) => {
if args.axis == wl_pointer::Axis::VerticalScroll {
pointer.scroll_frame.stop = true;
}
}
_ => (),
}
}
#[derive(Debug, Default, Clone, Copy)]
pub struct ScrollFrame {
stop: bool,
absolute: f64,
is_finger: bool,
}
impl ScrollFrame {
fn finalize(&mut self) -> Self {
let copy = *self;
*self = Self::default();
copy
}
}