Merge feature/screenshot-mode: capture every breadbar view
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Breadway 2026-07-29 21:57:55 +08:00
commit 872e7e1589
7 changed files with 735 additions and 161 deletions

377
Cargo.lock generated
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name = "thiserror"
version = "2.0.19"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "09a43598840e33d5b0331f38c5e30d13bb11c11210a4b58f0d9b18a5a5eefcd9"
dependencies = [
"thiserror-impl 2.0.19",
]
[[package]]
@ -1517,7 +1668,18 @@ checksum = "4fee6c4efc90059e10f81e6d42c60a18f76588c3d74cb83a0b242a2b6c7504c1"
dependencies = [
"proc-macro2",
"quote",
"syn",
"syn 2.0.119",
]
[[package]]
name = "thiserror-impl"
version = "2.0.19"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "43cbfe0cf76104d42a574802844187e84a305e531ed54455f11fbde0f10541cd"
dependencies = [
"proc-macro2",
"quote",
"syn 3.0.3",
]
[[package]]
@ -1548,9 +1710,9 @@ dependencies = [
[[package]]
name = "tokio"
version = "1.53.0"
version = "1.53.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d988bcd52dbe076d3d46903332f58c912b87a2c49b1428419a5845154762ffee"
checksum = "202caea871b69668250d242070849eb495be178ed697a3e98aebce5bc81a0bed"
dependencies = [
"bytes",
"libc",
@ -1571,7 +1733,7 @@ checksum = "6328af13490e73a9b4694030fafd93f8c8c6a9dede33e821c3fc63eddf8042ba"
dependencies = [
"proc-macro2",
"quote",
"syn",
"syn 2.0.119",
]
[[package]]
@ -1588,9 +1750,9 @@ dependencies = [
[[package]]
name = "toml"
version = "1.1.3+spec-1.1.0"
version = "1.1.4+spec-1.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "53c96ecdfa941c8fc4fcaed14f99ada8ebed502eef533015095a07e3301d4c3c"
checksum = "3aace63f4bbcdfc2c965b059de67119c89c4017a70d633be6c104910f67056f5"
dependencies = [
"indexmap",
"serde_core",
@ -1647,9 +1809,9 @@ dependencies = [
[[package]]
name = "toml_parser"
version = "1.1.2+spec-1.1.0"
version = "1.1.3+spec-1.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "a2abe9b86193656635d2411dc43050282ca48aa31c2451210f4202550afb7526"
checksum = "1d38ac1cf9b95face32296c0a3ede1fdc270627c9d9c02a7274dd6d960dc4d56"
dependencies = [
"winnow 1.0.4",
]
@ -1685,7 +1847,7 @@ checksum = "7490cfa5ec963746568740651ac6781f701c9c5ea257c58e057f3ba8cf69e8da"
dependencies = [
"proc-macro2",
"quote",
"syn",
"syn 2.0.119",
]
[[package]]
@ -1748,6 +1910,12 @@ dependencies = [
"xmlwriter",
]
[[package]]
name = "utf8parse"
version = "0.2.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "06abde3611657adf66d383f00b093d7faecc7fa57071cce2578660c9f1010821"
[[package]]
name = "uuid"
version = "1.24.0"
@ -1771,15 +1939,6 @@ version = "0.11.1+wasi-snapshot-preview1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ccf3ec651a847eb01de73ccad15eb7d99f80485de043efb2f370cd654f4ea44b"
[[package]]
name = "wasip2"
version = "1.0.4+wasi-0.2.12"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "b67efb37e106e55ce722a510d6b5f9c17f083e5fc79afc2badeb12cc313d9487"
dependencies = [
"wit-bindgen",
]
[[package]]
name = "wasm-bindgen"
version = "0.2.126"
@ -1812,7 +1971,7 @@ dependencies = [
"bumpalo",
"proc-macro2",
"quote",
"syn",
"syn 2.0.119",
"wasm-bindgen-shared",
]
@ -1924,12 +2083,6 @@ dependencies = [
"memchr",
]
[[package]]
name = "wit-bindgen"
version = "0.57.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1ebf944e87a7c253233ad6766e082e3cd714b5d03812acc24c318f549614536e"
[[package]]
name = "xml-rs"
version = "0.8.28"
@ -1981,7 +2134,7 @@ dependencies = [
"proc-macro-crate",
"proc-macro2",
"quote",
"syn",
"syn 2.0.119",
"zbus_names",
"zvariant",
"zvariant_utils",
@ -2027,7 +2180,7 @@ dependencies = [
"proc-macro-crate",
"proc-macro2",
"quote",
"syn",
"syn 2.0.119",
"zvariant_utils",
]
@ -2040,6 +2193,6 @@ dependencies = [
"proc-macro2",
"quote",
"serde",
"syn",
"syn 2.0.119",
"winnow 1.0.4",
]

View file

@ -17,6 +17,8 @@ bread-theme = { git = "https://github.com/Breadway/bread-ecosystem", branch = "d
# instead of hand-parsing serde_json::Value. See src/widgets/.
bread-utils = { git = "https://git.breadway.dev/Breadway/bread-ecosystem", branch = "dev", features = ["bread-client"] }
bread-shared = { git = "https://git.breadway.dev/Breadway/bread", branch = "dev" }
# Capture primitives for `--screenshot` mode — see src/screenshot.rs.
bread-screenshots = { git = "https://git.breadway.dev/Breadway/bread-ecosystem", branch = "dev" }
gtk4 = { version = "0.11", features = ["v4_12"] }
gtk4-layer-shell = "0.8"
relm4 = { version = "0.11", features = ["macros"] }
@ -26,6 +28,8 @@ zbus = { version = "5", default-features = false, features = ["tokio"] }
tokio = { version = "1", features = ["rt-multi-thread", "macros", "time", "process", "signal", "sync"] }
serde = { version = "1", features = ["derive"] }
serde_json = "1"
clap = { version = "4", features = ["derive"] }
anyhow = "1"
# Pure-Rust SVG rasteriser (default features off → no text/font deps; the icons
# are vector-only). Needed because librsvg dropped its gdk-pixbuf SVG loader.
resvg = { version = "0.47", default-features = false }

View file

@ -7,6 +7,7 @@ macro_rules! asset {
mod bar;
mod notifications;
mod osd;
mod screenshot;
mod theme;
mod widgets;
@ -124,7 +125,7 @@ pub enum AppInput {
#[relm4::component(pub)]
impl SimpleComponent for App {
type Init = ();
type Init = Option<screenshot::ScreenshotRequest>;
type Input = AppInput;
type Output = ();
@ -141,7 +142,7 @@ impl SimpleComponent for App {
}
fn init(
_: Self::Init,
screenshot_req: Self::Init,
root: Self::Root,
sender: ComponentSender<Self>,
) -> ComponentParts<Self> {
@ -644,6 +645,17 @@ impl SimpleComponent for App {
widgets.center_box.set_center_widget(Some(&center_area));
widgets.center_box.set_end_widget(Some(&stats_box));
// Captured before these move into `model` (or are otherwise dropped
// as bare locals, never stored on `App` at all) — needed by the
// screenshot dispatch just before this function returns.
let control_popover_for_screenshot = control_popover.clone();
let connectivity_popover_for_screenshot = connectivity_popover.clone();
let wifi_tab_btn_for_screenshot = wifi_tab_btn.clone();
let bt_tab_btn_for_screenshot = bt_tab_btn.clone();
let media_popover_for_screenshot = media_popover.clone();
let media_widget_for_screenshot = media_widget.clone();
let media_track_lbl_for_screenshot = media_track_lbl.clone();
let model = App {
workspaces: vec![],
active_ws: 1,
@ -710,8 +722,44 @@ impl SimpleComponent for App {
bar::wifi::spawn_status_poller(sender.clone());
bar::media::spawn_poller(sender.clone());
widgets::client::spawn(sender.clone());
notifications::spawn();
osd::spawn();
// Screenshot mode primes these with sample content instead of the
// real D-Bus/pactl/backlight sources — see notifications::SampleKind
// and osd::SampleKind's doc comments.
let notif_sample = screenshot_req.as_ref().and_then(|r| match r.view.as_str() {
"notification" => Some(notifications::SampleKind::Normal),
"notification-critical" => Some(notifications::SampleKind::Critical),
_ => None,
});
let notification_window = notifications::spawn(notif_sample);
let osd_sample = screenshot_req.as_ref().and_then(|r| match r.view.as_str() {
"osd-volume" => Some(osd::SampleKind::Volume),
"osd-brightness" => Some(osd::SampleKind::Brightness),
_ => None,
});
let osd_window = osd::spawn(osd_sample);
if let Some(req) = screenshot_req {
let notification_window = matches!(req.view.as_str(), "notification" | "notification-critical")
.then_some(notification_window);
let osd_window = matches!(req.view.as_str(), "osd-volume" | "osd-brightness")
.then_some(osd_window);
screenshot::dispatch(
&root,
req,
screenshot::Handles {
control_popover: control_popover_for_screenshot,
connectivity_popover: connectivity_popover_for_screenshot,
wifi_tab_btn: wifi_tab_btn_for_screenshot,
bt_tab_btn: bt_tab_btn_for_screenshot,
media_popover: media_popover_for_screenshot,
media_widget: media_widget_for_screenshot,
media_track_lbl: media_track_lbl_for_screenshot,
notification_window,
osd_window,
},
);
}
ComponentParts { model, widgets }
}
@ -1136,7 +1184,7 @@ impl App {
if saved {
bar::wifi::spawn_join(ssid_clone.clone());
} else {
show_add_network_dialog(btn, ssid_clone.clone());
show_add_network_dialog(btn, ssid_clone.clone(), |_| {});
}
close_parent_popover(btn);
});
@ -1293,8 +1341,11 @@ fn close_parent_popover(widget: &gtk4::Button) {
}
/// Small modal prompting for a password, then saves + joins the network via
/// `breadcrumbs add` + `breadcrumbs join`.
fn show_add_network_dialog(anchor: &gtk4::Button, ssid: String) {
/// `breadcrumbs add` + `breadcrumbs join`. `on_build` runs on the freshly
/// built dialog *before* it's presented — screenshot mode's only hook point,
/// since `connect_map` registered any later would miss a map that already
/// happened. The real call site passes a no-op.
fn show_add_network_dialog(anchor: &impl IsA<gtk4::Widget>, ssid: String, on_build: impl FnOnce(&gtk4::Window)) {
let dialog = gtk4::Window::new();
dialog.set_title(Some(&format!("Add “{ssid}")));
dialog.set_resizable(false);
@ -1358,6 +1409,7 @@ fn show_add_network_dialog(anchor: &gtk4::Button, ssid: String) {
dialog_for_activate.close();
});
on_build(&dialog);
dialog.present();
entry.grab_focus();
}
@ -1411,6 +1463,10 @@ fn stat_label() -> gtk4::Label {
}
fn main() {
use clap::Parser;
let cli = screenshot::Cli::parse();
let screenshot_req = cli.screenshot_request();
relm4::spawn(async {
use tokio::signal::unix::{signal, SignalKind};
let mut stream = signal(SignalKind::hangup()).expect("SIGHUP handler");
@ -1420,6 +1476,17 @@ fn main() {
}
});
let app = RelmApp::new("sh.breadway.breadbar");
app.run::<App>(());
// `with_args(vec![])` stops relm4 from handing our own --screenshot/
// --output flags to GLib's option parser (`app.run()`'s default), which
// would otherwise reject them as unrecognized before Cli::parse() above
// ever sees argv. allow_multiple_instances is needed for screenshot runs
// specifically: GApplication is single-instance by default, and a normal
// breadbar is typically already running, so without this a screenshot
// invocation would just activate that existing instance instead of
// starting a fresh one whose `init()` receives the request at all.
let app = RelmApp::new("sh.breadway.breadbar").with_args(vec![]);
if screenshot_req.is_some() {
app.allow_multiple_instances(true);
}
app.run::<App>(screenshot_req);
}

View file

@ -172,8 +172,55 @@ impl NotifServer {
}
}
pub fn spawn() {
/// A fixed sample notification for `--screenshot notification`/
/// `notification-critical` — substitutes for a real `Notify` D-Bus call so a
/// capture doesn't depend on some external sender firing one at just the
/// right moment.
pub enum SampleKind {
Normal,
Critical,
}
impl SampleKind {
fn sample_event(&self) -> NotifEvent {
let urgency = match self {
SampleKind::Normal => Urgency::Normal,
SampleKind::Critical => Urgency::Critical,
};
NotifEvent::Show {
id: 1,
app_name: "Sample App".into(),
summary: "Sample notification".into(),
body: "This is what a notification card looks like.".into(),
urgency,
expire: Expire::Never,
}
}
}
/// Builds the notification window synchronously (see
/// `popup::build_window`'s doc comment) and spawns the event loop that
/// shows/updates/hides it.
///
/// `sample`: `Some` skips real D-Bus registration entirely and seeds the
/// loop with one fixed sample event instead — screenshot mode only. Doing
/// the real `org.freedesktop.Notifications` registration in every
/// screenshot run would race the real breadbar (if running) for the same
/// well-known name for no benefit, since nothing needs to reach this
/// instance externally.
pub fn spawn(sample: Option<SampleKind>) -> gtk4::Window {
let (window, cards_box) = popup::build_window();
let (tx, rx) = mpsc::channel(32);
match sample {
Some(kind) => {
let _ = tx.try_send(kind.sample_event());
let window_for_loop = window.clone();
relm4::spawn_local(async move {
popup::run(window_for_loop, cards_box, rx, None).await;
});
}
None => {
let (conn_tx, conn_rx) = tokio::sync::oneshot::channel();
relm4::spawn(async move {
@ -199,11 +246,16 @@ pub fn spawn() {
std::future::pending::<()>().await
});
let window_for_loop = window.clone();
relm4::spawn_local(async move {
if let Ok(conn) = conn_rx.await {
popup::run(rx, conn).await;
popup::run(window_for_loop, cards_box, rx, Some(conn)).await;
}
});
}
}
window
}
#[cfg(test)]

View file

@ -23,7 +23,11 @@ mod close_reason {
pub const CLOSE_NOTIFICATION_CALL: u32 = 3;
}
pub async fn run(mut rx: Receiver<NotifEvent>, conn: zbus::Connection) {
/// Builds the notification window synchronously — so a caller (screenshot
/// mode in particular) has a real window to hook `connect_map` on before
/// `run`'s event loop, which needs an async `zbus::Connection` handshake in
/// the real path, ever starts.
pub fn build_window() -> (gtk4::Window, gtk4::Box) {
let window = create_window();
let cards_box = gtk4::Box::new(gtk4::Orientation::Vertical, 4);
cards_box.set_margin_top(8);
@ -31,7 +35,21 @@ pub async fn run(mut rx: Receiver<NotifEvent>, conn: zbus::Connection) {
cards_box.set_margin_start(8);
cards_box.set_margin_end(8);
window.set_child(Some(&cards_box));
(window, cards_box)
}
/// `conn`: `None` in screenshot mode, which skips real D-Bus registration
/// entirely (see `super::spawn`) — there's no external client that needs to
/// reach a screenshot-only instance, and registering the well-known name
/// would just race the real breadbar for it. `NotificationClosed` is a
/// spec-mandated signal for real clients only, so it's simply not emitted
/// when there's no real connection to emit it on.
pub async fn run(
window: gtk4::Window,
cards_box: gtk4::Box,
mut rx: Receiver<NotifEvent>,
conn: Option<zbus::Connection>,
) {
let cards: Cards = Rc::new(RefCell::new(HashMap::new()));
let generations: Generations = Rc::new(RefCell::new(HashMap::new()));
@ -109,8 +127,10 @@ fn dismiss(cards_box: &gtk4::Box, window: &gtk4::Window, cards: &Cards, id: u32)
/// Emits the spec-mandated `NotificationClosed(id, reason)` signal. Sent
/// directly over the connection rather than through the zbus interface
/// macro's generated helper, since the dismiss decision happens here in the
/// popup task, not inside `NotifServer`'s own method bodies.
async fn emit_closed(conn: &zbus::Connection, id: u32, reason: u32) {
/// popup task, not inside `NotifServer`'s own method bodies. No-op when
/// `conn` is `None` (screenshot mode — see `run`'s doc comment).
async fn emit_closed(conn: &Option<zbus::Connection>, id: u32, reason: u32) {
let Some(conn) = conn else { return };
let result = conn
.emit_signal(
None::<&str>,

View file

@ -9,14 +9,50 @@ enum OsdEvent {
Brightness { pct: u8 },
}
pub fn spawn() {
/// A fixed sample event for `--screenshot osd-volume`/`osd-brightness` —
/// substitutes for the real `pactl subscribe`/backlight-sysfs watchers so a
/// capture doesn't depend on this machine's actual volume/brightness at
/// capture time.
pub enum SampleKind {
Volume,
Brightness,
}
impl SampleKind {
fn sample_event(&self) -> OsdEvent {
match self {
SampleKind::Volume => OsdEvent::Volume { pct: 65, muted: false },
SampleKind::Brightness => OsdEvent::Brightness { pct: 80 },
}
}
}
/// Builds the OSD window synchronously (so a caller — screenshot mode, via
/// `sample`, in particular — has a real window to hook `connect_map` on
/// before the async event loop below ever runs) and spawns the event loop
/// that shows/updates/hides it.
///
/// `sample`: `Some` skips the real volume/brightness watchers entirely and
/// seeds the loop with one fixed sample event instead — screenshot mode
/// only, so a capture never depends on (or is disrupted by) this machine's
/// actual audio/backlight state.
pub fn spawn(sample: Option<SampleKind>) -> gtk4::Window {
let (tx, rx) = mpsc::channel::<OsdEvent>(8);
match sample {
Some(kind) => {
let _ = tx.try_send(kind.sample_event());
}
None => {
let tx1 = tx.clone();
std::thread::spawn(move || volume_watcher(tx1));
std::thread::spawn(move || brightness_watcher(tx));
}
}
relm4::spawn_local(run_osd(rx));
let window = create_window();
relm4::spawn_local(run_osd(window.clone(), rx));
window
}
fn volume_watcher(tx: mpsc::Sender<OsdEvent>) {
@ -119,9 +155,7 @@ fn brightness_watcher(tx: mpsc::Sender<OsdEvent>) {
}
}
async fn run_osd(mut rx: mpsc::Receiver<OsdEvent>) {
let window = create_window();
async fn run_osd(window: gtk4::Window, mut rx: mpsc::Receiver<OsdEvent>) {
let container = gtk4::Box::new(gtk4::Orientation::Horizontal, 0);
container.set_margin_top(10);
container.set_margin_bottom(10);

244
src/screenshot.rs Normal file
View file

@ -0,0 +1,244 @@
//! `--screenshot` CLI mode: render a specific view, capture it via
//! `bread-screenshots`, then exit — driven by `bread-ecosystem`'s
//! `bread-capture` orchestrator, or run standalone for one-off captures.
//!
//! Capture waits on GTK's `map` signal rather than a blind sleep before
//! grabbing pixels — the surface (or, for popover views, the popover itself)
//! genuinely isn't on screen yet before that fires, so a fixed delay would
//! either race a slow first paint or pad every fast one for nothing.
//!
//! breadbar is "a bar + the notification daemon + the OSD" (see its own
//! module docs), so its screenshot views span three separate top-level
//! surfaces, not just the bar: the bar itself and its popovers (this
//! module, anchored off `root`), plus the standalone notification and OSD
//! windows (`notifications::spawn`/`osd::spawn`, built and primed with
//! sample data by `main.rs` before `dispatch` runs — see [`Handles`]).
use clap::Parser;
use gtk4::prelude::*;
use std::path::PathBuf;
use std::time::Duration;
/// Extra settle time after `map` for the first frame to actually paint
/// before grim runs — `map` fires once the surface exists, not once
/// anything has been drawn into it.
const SETTLE_DELAY: Duration = Duration::from_millis(300);
/// Settle time for views whose content depends on `bar::stats::spawn_poller`'s
/// 2-second background loop (control-panel's CPU/RAM/PWR/GPU/network labels,
/// gated on popover visibility) or a similar live-data popover load
/// (connectivity's wifi/bluetooth scan) — capturing any sooner leaves
/// placeholder dashes/"Scanning…" instead of real content.
const LIVE_DATA_SETTLE_DELAY: Duration = Duration::from_millis(2_200);
/// Delay between the bar's own `map` and calling `popover.popup()`. Calling
/// `popup()` synchronously from inside the root window's `map` handler
/// produces a popover that reports itself `map`ped but never actually paints
/// (confirmed by an independent `grim` capture taken mid-sequence, showing no
/// popover at all) — presumably the parent widget's own allocation isn't
/// settled yet at that exact point. Giving the initial layout pass a beat to
/// finish first is what makes it actually render.
const PRE_POPUP_DELAY: Duration = Duration::from_millis(300);
const KNOWN_VIEWS: &[&str] = &[
"bar",
"control-panel",
"connectivity-wifi",
"connectivity-bluetooth",
"media-popover",
"notification",
"notification-critical",
"osd-volume",
"osd-brightness",
"wifi-add-dialog",
];
#[derive(Parser)]
#[command(name = "breadbar")]
pub struct Cli {
/// Render the named view, capture it, then exit instead of running
/// normally. See `screenshot::KNOWN_VIEWS` for the full list.
#[arg(long)]
pub screenshot: Option<String>,
/// PNG path to write the capture to. Required together with --screenshot.
#[arg(long)]
pub output: Option<PathBuf>,
/// Capture canvas width — matches the isolated compositor's output width
/// (`bread-capture --isolate-width`) so the geometry passed to `grim`
/// doesn't depend on querying anything at capture time.
#[arg(long, default_value_t = 1920)]
pub width: u32,
/// Capture canvas height — see `width`.
#[arg(long, default_value_t = 1080)]
pub height: u32,
}
pub struct ScreenshotRequest {
pub view: String,
pub output: PathBuf,
pub width: u32,
pub height: u32,
}
impl Cli {
/// `None` for a normal run. Exits the process with an error if
/// `--screenshot` was given without `--output`, before any GTK/relm4
/// setup happens.
pub fn screenshot_request(&self) -> Option<ScreenshotRequest> {
let view = self.screenshot.clone()?;
let Some(output) = self.output.clone() else {
eprintln!("breadbar: --screenshot requires --output");
std::process::exit(1);
};
Some(ScreenshotRequest { view, output, width: self.width, height: self.height })
}
}
/// Every widget/window `dispatch` might need, gathered by `main.rs`'s
/// `init()` — most of these are plain locals there that never otherwise
/// outlive `init()` (never stored on `App`), so they have to be cloned out
/// before dispatch time same as `control_popover` always was.
pub struct Handles {
pub control_popover: gtk4::Popover,
pub connectivity_popover: gtk4::Popover,
pub wifi_tab_btn: gtk4::ToggleButton,
pub bt_tab_btn: gtk4::ToggleButton,
pub media_popover: gtk4::Popover,
pub media_widget: gtk4::Box,
pub media_track_lbl: gtk4::Label,
/// Already built and primed with sample content by `main.rs` (via
/// `notifications::spawn(Some(kind))`) when `req.view` calls for it —
/// `None` otherwise.
pub notification_window: Option<gtk4::Window>,
/// Same deal as `notification_window`, via `osd::spawn(Some(kind))`.
pub osd_window: Option<gtk4::Window>,
}
/// The bar's fixed height — matches `root.set_exclusive_zone(32)` /
/// `set_default_height: 32` in `main.rs`. Unlike the other views' full
/// canvas, this never varies with `--width`/`--height`.
const BAR_HEIGHT: i32 = 32;
pub fn dispatch(root: &gtk4::ApplicationWindow, req: ScreenshotRequest, handles: Handles) {
let output = req.output;
let (width, height) = (req.width as i32, req.height as i32);
match req.view.as_str() {
"bar" => {
root.connect_map(move |_| {
let output = output.clone();
gtk4::glib::timeout_add_local_once(SETTLE_DELAY, move || {
finish(bread_screenshots::capture_region(0, 0, width, BAR_HEIGHT, &output));
});
});
}
"control-panel" => {
open_popover_on_root_map(root, handles.control_popover, LIVE_DATA_SETTLE_DELAY, output, width, height);
}
"connectivity-wifi" => {
handles.wifi_tab_btn.set_active(true);
open_popover_on_root_map(root, handles.connectivity_popover, LIVE_DATA_SETTLE_DELAY, output, width, height);
}
"connectivity-bluetooth" => {
handles.bt_tab_btn.set_active(true);
open_popover_on_root_map(root, handles.connectivity_popover, LIVE_DATA_SETTLE_DELAY, output, width, height);
}
"media-popover" => {
// Real media state only shows the widget/text when something's
// actually playing (see AppInput::MediaUpdate) — an automated
// run has nothing playing, so fake enough of it directly on the
// widgets to get a representative capture.
handles.media_widget.set_visible(true);
handles.media_track_lbl.set_text("Sample Track — Sample Artist");
open_popover_on_root_map(root, handles.media_popover, SETTLE_DELAY, output, width, height);
}
"notification" | "notification-critical" => {
let Some(window) = handles.notification_window else {
eprintln!("breadbar: internal error — no notification window built for '{}'", req.view);
std::process::exit(1);
};
capture_standalone_window(window, output, width, height);
}
"osd-volume" | "osd-brightness" => {
let Some(window) = handles.osd_window else {
eprintln!("breadbar: internal error — no OSD window built for '{}'", req.view);
std::process::exit(1);
};
capture_standalone_window(window, output, width, height);
}
"wifi-add-dialog" => {
let anchor = handles.wifi_tab_btn;
root.connect_map(move |_| {
let output = output.clone();
let anchor = anchor.clone();
gtk4::glib::timeout_add_local_once(PRE_POPUP_DELAY, move || {
crate::show_add_network_dialog(&anchor, "Sample Network".to_string(), move |dialog| {
capture_standalone_window(dialog.clone(), output.clone(), width, height);
});
});
});
}
other => {
eprintln!(
"breadbar: unknown screenshot view '{other}' (known: {})",
KNOWN_VIEWS.join(", ")
);
std::process::exit(1);
}
}
}
/// Shared shape for every popover view: force it open shortly after the bar
/// maps (autohide disabled — a programmatic `popup()` has no real input
/// event serial to grab the Wayland seat with), then capture the whole
/// canvas after `settle` once the popover itself maps.
fn open_popover_on_root_map(
root: &gtk4::ApplicationWindow,
popover: gtk4::Popover,
settle: Duration,
output: PathBuf,
width: i32,
height: i32,
) {
let popover_to_open = popover.clone();
root.connect_map(move |_| {
popover_to_open.set_autohide(false);
let popover_to_open = popover_to_open.clone();
gtk4::glib::timeout_add_local_once(PRE_POPUP_DELAY, move || {
popover_to_open.popup();
});
});
popover.connect_map(move |_| {
let output = output.clone();
gtk4::glib::timeout_add_local_once(settle, move || {
finish(bread_screenshots::capture_region(0, 0, width, height, &output));
});
});
}
/// Shared shape for the standalone notification/OSD windows and the wifi
/// add-network dialog: wait for `map`, settle, capture, exit. These are
/// already-visible-or-about-to-be windows by the time this is called (their
/// sample event is queued before `dispatch` even runs), so this is just the
/// capture half.
fn capture_standalone_window(window: gtk4::Window, output: PathBuf, width: i32, height: i32) {
window.connect_map(move |_| {
let output = output.clone();
gtk4::glib::timeout_add_local_once(SETTLE_DELAY, move || {
finish(bread_screenshots::capture_region(0, 0, width, height, &output));
});
});
}
fn finish(result: anyhow::Result<()>) {
match result {
Ok(()) => std::process::exit(0),
Err(e) => {
eprintln!("breadbar: screenshot capture failed: {e}");
std::process::exit(1);
}
}
}