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|
use std::env;
use std::io::{Read, Write};
use std::net::Shutdown;
use std::os::unix::net::UnixStream;
use anyhow::{anyhow, bail, Context};
use niri_ipc::{LogicalOutput, Mode, Output, Reply, Request, Response};
use crate::cli::Msg;
pub fn handle_msg(msg: Msg, json: bool) -> anyhow::Result<()> {
let socket_path = env::var_os(niri_ipc::SOCKET_PATH_ENV).with_context(|| {
format!(
"{} is not set, are you running this within niri?",
niri_ipc::SOCKET_PATH_ENV
)
})?;
let mut stream =
UnixStream::connect(socket_path).context("error connecting to {socket_path}")?;
let request = match &msg {
Msg::Outputs => Request::Outputs,
Msg::FocusedWindow => Request::FocusedWindow,
Msg::Action { action } => Request::Action(action.clone()),
};
let mut buf = serde_json::to_vec(&request).unwrap();
stream
.write_all(&buf)
.context("error writing IPC request")?;
stream
.shutdown(Shutdown::Write)
.context("error closing IPC stream for writing")?;
buf.clear();
stream
.read_to_end(&mut buf)
.context("error reading IPC response")?;
let reply: Reply = serde_json::from_slice(&buf).context("error parsing IPC reply")?;
let response = reply
.map_err(|msg| anyhow!(msg))
.context("niri could not handle the request")?;
match msg {
Msg::Outputs => {
let Response::Outputs(outputs) = response else {
bail!("unexpected response: expected Outputs, got {response:?}");
};
if json {
let output =
serde_json::to_string(&outputs).context("error formatting response")?;
println!("{output}");
return Ok(());
}
let mut outputs = outputs.into_iter().collect::<Vec<_>>();
outputs.sort_unstable_by(|a, b| a.0.cmp(&b.0));
for (connector, output) in outputs.into_iter() {
let Output {
name,
make,
model,
physical_size,
modes,
current_mode,
logical,
} = output;
println!(r#"Output "{connector}" ({make} - {model} - {name})"#);
if let Some(current) = current_mode {
let mode = *modes
.get(current)
.context("invalid response: current mode does not exist")?;
let Mode {
width,
height,
refresh_rate,
is_preferred,
} = mode;
let refresh = refresh_rate as f64 / 1000.;
let preferred = if is_preferred { " (preferred)" } else { "" };
println!(" Current mode: {width}x{height} @ {refresh:.3} Hz{preferred}");
} else {
println!(" Disabled");
}
if let Some((width, height)) = physical_size {
println!(" Physical size: {width}x{height} mm");
} else {
println!(" Physical size: unknown");
}
if let Some(logical) = logical {
let LogicalOutput {
x,
y,
width,
height,
scale,
transform,
} = logical;
println!(" Logical position: {x}, {y}");
println!(" Logical size: {width}x{height}");
println!(" Scale: {scale}");
let transform = match transform {
niri_ipc::Transform::Normal => "normal",
niri_ipc::Transform::_90 => "90° counter-clockwise",
niri_ipc::Transform::_180 => "180°",
niri_ipc::Transform::_270 => "270° counter-clockwise",
niri_ipc::Transform::Flipped => "flipped horizontally",
niri_ipc::Transform::Flipped90 => {
"90° counter-clockwise, flipped horizontally"
}
niri_ipc::Transform::Flipped180 => "flipped vertically",
niri_ipc::Transform::Flipped270 => {
"270° counter-clockwise, flipped horizontally"
}
};
println!(" Transform: {transform}");
}
println!(" Available modes:");
for (idx, mode) in modes.into_iter().enumerate() {
let Mode {
width,
height,
refresh_rate,
is_preferred,
} = mode;
let refresh = refresh_rate as f64 / 1000.;
let is_current = Some(idx) == current_mode;
let qualifier = match (is_current, is_preferred) {
(true, true) => " (current, preferred)",
(true, false) => " (current)",
(false, true) => " (preferred)",
(false, false) => "",
};
println!(" {width}x{height}@{refresh:.3}{qualifier}");
}
println!();
}
}
Msg::FocusedWindow => {
let Response::FocusedWindow(window) = response else {
bail!("unexpected response: expected FocusedWindow, got {response:?}");
};
if json {
let window = serde_json::to_string(&window).context("error formatting response")?;
println!("{window}");
return Ok(());
}
if let Some(window) = window {
println!("Focused window:");
if let Some(title) = window.title {
println!(" Title: \"{title}\"");
} else {
println!(" Title: (unset)");
}
if let Some(app_id) = window.app_id {
println!(" App ID: \"{app_id}\"");
} else {
println!(" App ID: (unset)");
}
} else {
println!("No window is focused.");
}
}
Msg::Action { .. } => {
let Response::Handled = response else {
bail!("unexpected response: expected Handled, got {response:?}");
};
}
}
Ok(())
}
|
