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|
extern crate x11rb;
use x11rb::connection::Connection;
use x11rb::cursor::Handle as CursorHandle;
use x11rb::protocol::xproto::*;
use x11rb::protocol::Event;
use x11rb::resource_manager::new_from_default;
use x11rb::wrapper::ConnectionExt as _;
x11rb::atom_manager! {
pub Atoms: AtomsCookie {
WM_PROTOCOLS,
WM_DELETE_WINDOW,
_NET_WM_NAME,
UTF8_STRING,
}
}
fn init_tracing() {
use tracing_subscriber::prelude::*;
tracing_subscriber::registry()
.with(tracing_subscriber::fmt::layer())
.with(tracing_subscriber::EnvFilter::from_default_env())
.init();
}
fn main() -> Result<(), Box<dyn std::error::Error>> {
init_tracing();
let (conn, screen_num) = x11rb::connect(None)?;
// The following is only needed for start_timeout_thread(), which is used for 'tests'
let conn1 = std::sync::Arc::new(conn);
let conn = &*conn1;
let screen = &conn.setup().roots[screen_num];
let win_id = conn.generate_id()?;
let gc_id = conn.generate_id()?;
let resource_db = new_from_default(conn)?;
let cursor_handle = CursorHandle::new(conn, screen_num, &resource_db)?;
let atoms = Atoms::new(conn)?.reply()?;
let cursor_handle = cursor_handle.reply()?;
let win_aux = CreateWindowAux::new()
.event_mask(EventMask::EXPOSURE | EventMask::STRUCTURE_NOTIFY | EventMask::NO_EVENT)
.background_pixel(screen.white_pixel)
.win_gravity(Gravity::NORTH_WEST)
// Just because, we set the cursor to "wait"
.cursor(cursor_handle.load_cursor(conn, "wait")?);
let gc_aux = CreateGCAux::new().foreground(screen.black_pixel);
let (mut width, mut height) = (100, 100);
conn.create_window(
screen.root_depth,
win_id,
screen.root,
0,
0,
width,
height,
0,
WindowClass::INPUT_OUTPUT,
0,
&win_aux,
)?;
util::start_timeout_thread(conn1.clone(), win_id);
let title = "Simple Window";
conn.change_property8(
PropMode::REPLACE,
win_id,
AtomEnum::WM_NAME,
AtomEnum::STRING,
title.as_bytes(),
)?;
conn.change_property8(
PropMode::REPLACE,
win_id,
atoms._NET_WM_NAME,
atoms.UTF8_STRING,
title.as_bytes(),
)?;
conn.change_property32(
PropMode::REPLACE,
win_id,
atoms.WM_PROTOCOLS,
AtomEnum::ATOM,
&[atoms.WM_DELETE_WINDOW],
)?;
conn.change_property8(
PropMode::REPLACE,
win_id,
AtomEnum::WM_CLASS,
AtomEnum::STRING,
b"simple_window\0simple_window\0",
)?;
conn.change_property8(
PropMode::REPLACE,
win_id,
AtomEnum::WM_CLIENT_MACHINE,
AtomEnum::STRING,
// Text encoding in X11 is complicated. Let's use UTF-8 and hope for the best.
gethostname::gethostname()
.to_str()
.unwrap_or("[Invalid]")
.as_bytes(),
)?;
let reply = conn
.get_property(false, win_id, AtomEnum::WM_NAME, AtomEnum::STRING, 0, 1024)?
.reply()?;
assert_eq!(reply.value, title.as_bytes());
conn.create_gc(gc_id, win_id, &gc_aux)?;
conn.map_window(win_id)?;
conn.flush()?;
loop {
let event = conn.wait_for_event()?;
tracing::debug!("Got event {event:?}");
match event {
Event::Expose(event) => {
if event.count == 0 {
// There already is a white background because we set background_pixel to white
// when creating the window.
let (width, height): (i16, i16) = (width as _, height as _);
let points = [
Point {
x: width,
y: height,
},
Point { x: -10, y: -10 },
Point {
x: -10,
y: height + 10,
},
Point {
x: width + 10,
y: -10,
},
];
conn.poly_line(CoordMode::ORIGIN, win_id, gc_id, &points)?;
conn.flush()?;
}
}
Event::ConfigureNotify(event) => {
width = event.width;
height = event.height;
}
Event::ClientMessage(event) => {
let data = event.data.as_data32();
if event.format == 32 && event.window == win_id && data[0] == atoms.WM_DELETE_WINDOW
{
tracing::info!("Window was asked to close");
return Ok(());
}
}
Event::Error(err) => {
tracing::error!("Got an unexpected error: {err:?}")
}
event => tracing::info!("Got an unhandled event: {event:?}"),
}
}
}
include!("integration_test_util/util.rs");
|
