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x11: implement active screen detection

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NBonaparte 2023-01-07 21:55:50 -08:00 committed by Wez Furlong
parent 890bff7faf
commit e31ff587f9
1 changed files with 17 additions and 7 deletions
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24
window/src/os/x11/connection.rs
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@ -5,7 +5,7 @@ use crate::os::x11::xsettings::*;
use crate::os::Connection;
use crate::screen::{ScreenInfo, Screens};
use crate::spawn::*;
use crate::{Appearance, DeadKeyStatus, ScreenRect};
use crate::{Appearance, DeadKeyStatus, ScreenRect, ScreenPoint};
use anyhow::{anyhow, bail, Context as _};
use mio::event::Source;
use mio::unix::SourceFd;
@ -294,12 +294,22 @@ impl ConnectionOps for XConnection {
.ok_or_else(|| anyhow::anyhow!("no screens were found"))?
.clone();
// We don't yet know how to determine the active screen,
// so assume the main screen.
// TODO: find focused window and resolve it!
// Maybe something like <https://stackoverflow.com/a/43666928/149111>
// but ported to Rust?
let active = main.clone();
self.conn.send_request(&xcb::x::GrabServer {});
let focused = self
.send_and_wait_request(&xcb::x::GetInputFocus {})
.context("querying focused window")?;
let geom = self
.send_and_wait_request(&xcb::x::GetGeometry {
drawable: xcb::x::Drawable::Window(focused.focus()),
})
.context("querying geometry")?;
let window_origin = ScreenPoint::new(geom.x().into(), geom.y().into());
let active = by_name
.values()
.find(|screen| screen.rect.contains(window_origin))
.ok_or_else(|| anyhow::anyhow!("active window is not in any screen"))?
.clone();
self.conn.send_request(&xcb::x::UngrabServer {});
Ok(Screens {
main,