T18 Terminal: a real shell on a pseudo-terminal through alacritty_terminal 0.26, drawn cell by cell in the theme's ANSI colors, with keys, text input, selection, scrollback, links and regex find; replayed output; tabs, splits and toolbar with a shell selector; command blocks and history; AnsiText, LogViewer and ProcessList
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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ZacharyZhang-NYandClaude Opus 5.5 committed
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@@ -0,0 +1,196 @@
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use std::path::PathBuf;
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use ely_gpui_component::{
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editor::{FindOptions, FindWidget},
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forms::TextInput,
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layout::{PaneGroup, PaneId},
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navigation::{EditorTab, EditorTabs},
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primitives::IconName,
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terminal::{Launch, ShellChoice, ShellSelector, Terminal, TerminalToolbar},
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theme::{ActiveTheme, Radius},
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};
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use gpui::{
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App, AppContext as _, Axis, Entity, IntoElement, ParentElement, SharedString, Styled, Window,
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div, prelude::*, px,
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};
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use crate::{
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probe::probe,
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ui::{keep, section, set},
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};
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/// A build's output as a terminal printed it, colors and all.
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const BUILD: &str = "\x1b[1;32m Compiling\x1b[0m ely-gpui-component v0.1.0\r\n\x1b[1;33mwarning\x1b[0m\x1b[1m: unused variable: `spare`\x1b[0m\r\n \x1b[1;34m-->\x1b[0m src/main.rs:47:9\r\n\x1b[1;33mwarning\x1b[0m\x1b[1m: field `hint` is never read\x1b[0m\r\n \x1b[1;34m-->\x1b[0m src/palette.rs:12:5\r\n\x1b[1;32m Finished\x1b[0m `dev` profile [unoptimized + debuginfo] target(s) in 4.21s\r\n\x1b[1;32m Running\x1b[0m `target/debug/palette`\r\n\x1b[38;5;110m◆\x1b[0m 5 tints of accent, the last \x1b[38;2;232;243;252m██\x1b[0m #e8f3fc\r\n\x1b[2mdocs: https://github.com/leidianyayi/Ely-GPUI-Components\x1b[0m\r\n";
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const SHELLS: [(&str, &str); 3] = [
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("bash", "/bin/bash"),
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("zsh", "/bin/zsh"),
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("sh", "/bin/sh"),
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];
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/// A shell with no startup files, its prompt the folder's name, in this repository.
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fn launch(shell: usize) -> Launch {
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let (name, program) = SHELLS[shell];
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let args = match name {
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"bash" => vec!["--noprofile".into(), "--norc".into(), "-i".into()],
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"zsh" => vec!["-f".into(), "-i".into()],
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_ => vec!["-i".into()],
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};
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Launch {
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program: Some((program.into(), args)),
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cwd: Some(PathBuf::from(env!("CARGO_MANIFEST_DIR"))),
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env: vec![
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("PS1".into(), "\\W › ".into()),
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("PROMPT".into(), "%1~ › ".into()),
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("BASH_SILENCE_DEPRECATION_WARNING".into(), "1".into()),
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],
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}
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}
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/// A pane group of shells, and the shell each pane holds.
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type Panes = (Entity<PaneGroup>, Entity<Vec<(PaneId, Entity<Terminal>)>>);
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fn panes(shell: usize, window: &mut Window, cx: &mut App) -> Panes {
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let sessions = window.use_keyed_state(("terminal-sessions", shell), cx, |_, _| Vec::new());
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let held = sessions.clone();
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let group = window.use_keyed_state(("terminal-panes", shell), cx, move |_, _| {
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PaneGroup::new(move |pane, _, cx| session(&held, pane, shell, cx).into_any_element())
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});
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(group, sessions)
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}
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/// The shell pane `pane` holds, started the first time the pane draws.
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fn session(
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sessions: &Entity<Vec<(PaneId, Entity<Terminal>)>>,
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pane: PaneId,
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shell: usize,
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cx: &mut App,
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) -> Entity<Terminal> {
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if let Some((_, terminal)) = sessions.read(cx).iter().find(|(id, _)| *id == pane) {
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return terminal.clone();
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}
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let terminal = cx.new(|cx| Terminal::spawn(launch(shell), cx).expect("the shell starts"));
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sessions.update(cx, |all, _| all.push((pane, terminal.clone())));
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terminal
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}
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fn field(key: &'static str, text: &str, window: &mut Window, cx: &mut App) -> Entity<TextInput> {
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let seed = text.to_string();
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window.use_keyed_state(key, cx, move |window, cx| {
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let mut field = TextInput::new(window, cx);
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field.set_text(seed, cx);
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field
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})
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}
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pub fn live(window: &mut Window, cx: &mut App) -> impl IntoElement + use<> {
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let tab = keep("terminal-tab", || SharedString::from("shell"), window, cx);
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let shell = keep("terminal-shell-choice", || 0usize, window, cx);
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let (now_tab, now_shell) = (tab.read(cx).clone(), *shell.read(cx));
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let (group, sessions) = panes(now_shell, window, cx);
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let build = window.use_keyed_state("terminal-build", cx, |_, cx| {
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Terminal::replay(BUILD.as_bytes(), 92, 12, cx)
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});
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let query = field("terminal-find", "warning", window, cx);
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let options = keep("terminal-options", FindOptions::default, window, cx);
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let searched = keep(
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"terminal-searched",
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|| None::<(String, FindOptions)>,
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window,
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cx,
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);
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let wanted = (query.read(cx).text().to_string(), *options.read(cx));
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let error = keep("terminal-find-error", || None::<SharedString>, window, cx);
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if searched.read(cx).as_ref() != Some(&wanted) {
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let found = build.update(cx, |build, cx| build.find(&wanted.0, wanted.1, cx));
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set(&error, found.err().map(SharedString::from), cx);
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set(&searched, Some(wanted.clone()), cx);
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}
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let (total, current) = build.read(cx).matches();
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let focused = group.read(cx).focused();
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let active = session(&sessions, focused, now_shell, cx);
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let (pick, choose, splitter, clearer, stopper) = (
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tab.clone(),
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shell.clone(),
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group.clone(),
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active.clone(),
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active.clone(),
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);
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let shells = ShellSelector::new(
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"terminal-shells",
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SHELLS.map(|(name, program)| ShellChoice {
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name: name.into(),
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program: program.into(),
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}),
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)
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.default_shell(now_shell)
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.on_pick(move |ix, _, cx| set(&choose, ix, cx));
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let on_shell = now_tab.as_ref() == "shell";
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let exit = active
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.read(cx)
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.exit_status()
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.and_then(|status| status.code());
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let toolbar = TerminalToolbar::new(
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"terminal-toolbar",
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format!("{} — Ely-GPUI-Components", SHELLS[now_shell].0),
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exit,
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)
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.shells(shells)
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.on_split(move |_, cx| {
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splitter.update(cx, |group, cx| {
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let pane = group.focused();
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group.split(pane, Axis::Horizontal, cx);
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})
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})
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.on_clear(move |_, cx| clearer.update(cx, |terminal, cx| terminal.clear(cx)))
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.on_stop(move |_, cx| stopper.update(cx, |terminal, _| terminal.write(&b"\x03"[..])));
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let (step, flip) = (build.clone(), options.clone());
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let find = FindWidget::new("terminal-find-widget", &query, current, total)
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.options(*options.read(cx))
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.on_options(move |next, _, cx| set(&flip, next, cx))
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.on_step(move |forward, _, cx| step.update(cx, |build, cx| build.step(forward, cx)));
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let find = match error.read(cx).clone() {
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Some(message) => find.error(message),
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None => find,
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};
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let theme = cx.theme();
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section(
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"Terminal / TerminalTabs / TerminalSplit / TerminalToolbar / ShellSelector / TerminalSearch / TerminalLink",
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"A real shell on a pseudo-terminal, drawn cell by cell in the theme's sixteen colors. Tabs hold shells and output; split for another shell beside it. Find lights every match through the scrollback. Cmd-press a link or a path:line.",
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cx,
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)
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.child(
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div()
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.w(px(840.))
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.rounded(theme.radius(Radius::Md))
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.border_1()
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.border_color(theme.colors.border)
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.overflow_hidden()
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.child(probe(
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"terminal-tabs",
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div().w(px(838.)).child(
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EditorTabs::new(
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"terminal-tabs",
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[
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EditorTab::new("shell", SHELLS[now_shell].0).icon(IconName::Terminal),
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EditorTab::new("build", "cargo run").icon(IconName::FileText),
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],
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)
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.selected(now_tab.clone())
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.on_select(move |id, _, cx| set(&pick, id.clone(), cx)),
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),
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))
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.children(on_shell.then_some(toolbar))
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.child(probe(
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"terminal",
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div().w(px(838.)).h(px(300.)).relative().map(|body| {
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if on_shell {
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body.child(group)
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} else {
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body.child(build)
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.child(div().absolute().top_1().right_4().child(find))
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}
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}),
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)),
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)
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}
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