1pub mod mappings;
2
3pub use alacritty_terminal;
4
5mod pty_info;
6pub mod terminal_settings;
7
8use alacritty_terminal::{
9 Term,
10 event::{Event as AlacTermEvent, EventListener, Notify, WindowSize},
11 event_loop::{EventLoop, Msg, Notifier},
12 grid::{Dimensions, Grid, Row, Scroll as AlacScroll},
13 index::{Boundary, Column, Direction as AlacDirection, Line, Point as AlacPoint},
14 selection::{Selection, SelectionRange, SelectionType},
15 sync::FairMutex,
16 term::{
17 Config, RenderableCursor, TermMode,
18 cell::{Cell, Flags},
19 search::{Match, RegexIter, RegexSearch},
20 },
21 tty::{self},
22 vi_mode::{ViModeCursor, ViMotion},
23 vte::ansi::{
24 ClearMode, CursorStyle as AlacCursorStyle, Handler, NamedPrivateMode, PrivateMode,
25 },
26};
27use anyhow::{Result, bail};
28
29use futures::{
30 FutureExt,
31 channel::mpsc::{UnboundedReceiver, UnboundedSender, unbounded},
32};
33
34use mappings::mouse::{
35 alt_scroll, grid_point, grid_point_and_side, mouse_button_report, mouse_moved_report,
36 scroll_report,
37};
38
39use collections::{HashMap, VecDeque};
40use futures::StreamExt;
41use pty_info::PtyProcessInfo;
42use regex::Regex;
43use serde::{Deserialize, Serialize};
44use settings::Settings;
45use smol::channel::{Receiver, Sender};
46use task::{HideStrategy, Shell, TaskId};
47use terminal_settings::{AlternateScroll, CursorShape, TerminalSettings};
48use theme::{ActiveTheme, Theme};
49use util::{paths::home_dir, truncate_and_trailoff};
50
51use std::{
52 cmp::{self, min},
53 fmt::Display,
54 ops::{Deref, Index, RangeInclusive},
55 path::PathBuf,
56 process::ExitStatus,
57 sync::{Arc, LazyLock},
58 time::Duration,
59};
60use thiserror::Error;
61
62use gpui::{
63 AnyWindowHandle, App, AppContext as _, Bounds, ClipboardItem, Context, EventEmitter, Hsla,
64 Keystroke, Modifiers, MouseButton, MouseDownEvent, MouseMoveEvent, MouseUpEvent, Pixels, Point,
65 Rgba, ScrollWheelEvent, SharedString, Size, Task, TouchPhase, Window, actions, black, px,
66};
67
68use crate::mappings::{colors::to_alac_rgb, keys::to_esc_str};
69
70actions!(
71 terminal,
72 [
73 Clear,
74 Copy,
75 Paste,
76 ShowCharacterPalette,
77 SearchTest,
78 ScrollLineUp,
79 ScrollLineDown,
80 ScrollPageUp,
81 ScrollPageDown,
82 ScrollToTop,
83 ScrollToBottom,
84 ToggleViMode,
85 ]
86);
87
88///Scrolling is unbearably sluggish by default. Alacritty supports a configurable
89///Scroll multiplier that is set to 3 by default. This will be removed when I
90///Implement scroll bars.
91#[cfg(target_os = "macos")]
92const SCROLL_MULTIPLIER: f32 = 4.;
93#[cfg(not(target_os = "macos"))]
94const SCROLL_MULTIPLIER: f32 = 1.;
95const MAX_SEARCH_LINES: usize = 100;
96const DEBUG_TERMINAL_WIDTH: Pixels = px(500.);
97const DEBUG_TERMINAL_HEIGHT: Pixels = px(30.);
98const DEBUG_CELL_WIDTH: Pixels = px(5.);
99const DEBUG_LINE_HEIGHT: Pixels = px(5.);
100
101///Upward flowing events, for changing the title and such
102#[derive(Clone, Debug)]
103pub enum Event {
104 TitleChanged,
105 BreadcrumbsChanged,
106 CloseTerminal,
107 Bell,
108 Wakeup,
109 BlinkChanged(bool),
110 SelectionsChanged,
111 NewNavigationTarget(Option<MaybeNavigationTarget>),
112 Open(MaybeNavigationTarget),
113}
114
115#[derive(Clone, Debug)]
116pub struct PathLikeTarget {
117 /// File system path, absolute or relative, existing or not.
118 /// Might have line and column number(s) attached as `file.rs:1:23`
119 pub maybe_path: String,
120 /// Current working directory of the terminal
121 pub terminal_dir: Option<PathBuf>,
122}
123
124/// A string inside terminal, potentially useful as a URI that can be opened.
125#[derive(Clone, Debug)]
126pub enum MaybeNavigationTarget {
127 /// HTTP, git, etc. string determined by the `URL_REGEX` regex.
128 Url(String),
129 /// File system path, absolute or relative, existing or not.
130 /// Might have line and column number(s) attached as `file.rs:1:23`
131 PathLike(PathLikeTarget),
132}
133
134#[derive(Clone)]
135enum InternalEvent {
136 Resize(TerminalBounds),
137 Clear,
138 // FocusNextMatch,
139 Scroll(AlacScroll),
140 ScrollToAlacPoint(AlacPoint),
141 SetSelection(Option<(Selection, AlacPoint)>),
142 UpdateSelection(Point<Pixels>),
143 // Adjusted mouse position, should open
144 FindHyperlink(Point<Pixels>, bool),
145 Copy,
146 // Vi mode events
147 ToggleViMode,
148 ViMotion(ViMotion),
149}
150
151///A translation struct for Alacritty to communicate with us from their event loop
152#[derive(Clone)]
153pub struct ZedListener(pub UnboundedSender<AlacTermEvent>);
154
155impl EventListener for ZedListener {
156 fn send_event(&self, event: AlacTermEvent) {
157 self.0.unbounded_send(event).ok();
158 }
159}
160
161pub fn init(cx: &mut App) {
162 TerminalSettings::register(cx);
163}
164
165#[derive(Clone, Copy, Debug, PartialEq, Eq, Serialize, Deserialize)]
166pub struct TerminalBounds {
167 pub cell_width: Pixels,
168 pub line_height: Pixels,
169 pub bounds: Bounds<Pixels>,
170}
171
172impl TerminalBounds {
173 pub fn new(line_height: Pixels, cell_width: Pixels, bounds: Bounds<Pixels>) -> Self {
174 TerminalBounds {
175 cell_width,
176 line_height,
177 bounds,
178 }
179 }
180
181 pub fn num_lines(&self) -> usize {
182 (self.bounds.size.height / self.line_height).floor() as usize
183 }
184
185 pub fn num_columns(&self) -> usize {
186 (self.bounds.size.width / self.cell_width).floor() as usize
187 }
188
189 pub fn height(&self) -> Pixels {
190 self.bounds.size.height
191 }
192
193 pub fn width(&self) -> Pixels {
194 self.bounds.size.width
195 }
196
197 pub fn cell_width(&self) -> Pixels {
198 self.cell_width
199 }
200
201 pub fn line_height(&self) -> Pixels {
202 self.line_height
203 }
204}
205
206impl Default for TerminalBounds {
207 fn default() -> Self {
208 TerminalBounds::new(
209 DEBUG_LINE_HEIGHT,
210 DEBUG_CELL_WIDTH,
211 Bounds {
212 origin: Point::default(),
213 size: Size {
214 width: DEBUG_TERMINAL_WIDTH,
215 height: DEBUG_TERMINAL_HEIGHT,
216 },
217 },
218 )
219 }
220}
221
222impl From<TerminalBounds> for WindowSize {
223 fn from(val: TerminalBounds) -> Self {
224 WindowSize {
225 num_lines: val.num_lines() as u16,
226 num_cols: val.num_columns() as u16,
227 cell_width: f32::from(val.cell_width()) as u16,
228 cell_height: f32::from(val.line_height()) as u16,
229 }
230 }
231}
232
233impl Dimensions for TerminalBounds {
234 /// Note: this is supposed to be for the back buffer's length,
235 /// but we exclusively use it to resize the terminal, which does not
236 /// use this method. We still have to implement it for the trait though,
237 /// hence, this comment.
238 fn total_lines(&self) -> usize {
239 self.screen_lines()
240 }
241
242 fn screen_lines(&self) -> usize {
243 self.num_lines()
244 }
245
246 fn columns(&self) -> usize {
247 self.num_columns()
248 }
249}
250
251#[derive(Error, Debug)]
252pub struct TerminalError {
253 pub directory: Option<PathBuf>,
254 pub shell: Shell,
255 pub source: std::io::Error,
256}
257
258impl TerminalError {
259 pub fn fmt_directory(&self) -> String {
260 self.directory
261 .clone()
262 .map(|path| {
263 match path
264 .into_os_string()
265 .into_string()
266 .map_err(|os_str| format!("<non-utf8 path> {}", os_str.to_string_lossy()))
267 {
268 Ok(s) => s,
269 Err(s) => s,
270 }
271 })
272 .unwrap_or_else(|| match dirs::home_dir() {
273 Some(dir) => format!(
274 "<none specified, using home directory> {}",
275 dir.into_os_string().to_string_lossy()
276 ),
277 None => "<none specified, could not find home directory>".to_string(),
278 })
279 }
280
281 pub fn fmt_shell(&self) -> String {
282 match &self.shell {
283 Shell::System => "<system defined shell>".to_string(),
284 Shell::Program(s) => s.to_string(),
285 Shell::WithArguments {
286 program,
287 args,
288 title_override,
289 } => {
290 if let Some(title_override) = title_override {
291 format!("{} {} ({})", program, args.join(" "), title_override)
292 } else {
293 format!("{} {}", program, args.join(" "))
294 }
295 }
296 }
297 }
298}
299
300impl Display for TerminalError {
301 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
302 let dir_string: String = self.fmt_directory();
303 let shell = self.fmt_shell();
304
305 write!(
306 f,
307 "Working directory: {} Shell command: `{}`, IOError: {}",
308 dir_string, shell, self.source
309 )
310 }
311}
312
313// https://github.com/alacritty/alacritty/blob/cb3a79dbf6472740daca8440d5166c1d4af5029e/extra/man/alacritty.5.scd?plain=1#L207-L213
314const DEFAULT_SCROLL_HISTORY_LINES: usize = 10_000;
315pub const MAX_SCROLL_HISTORY_LINES: usize = 100_000;
316const URL_REGEX: &str = r#"(ipfs:|ipns:|magnet:|mailto:|gemini://|gopher://|https://|http://|news:|file://|git://|ssh:|ftp://)[^\u{0000}-\u{001F}\u{007F}-\u{009F}<>"\s{-}\^⟨⟩`]+"#;
317// Optional suffix matches MSBuild diagnostic suffixes for path parsing in PathLikeWithPosition
318// https://learn.microsoft.com/en-us/visualstudio/msbuild/msbuild-diagnostic-format-for-tasks
319const WORD_REGEX: &str =
320 r#"[\$\+\w.\[\]:/\\@\-~()]+(?:\((?:\d+|\d+,\d+)\))|[\$\+\w.\[\]:/\\@\-~()]+"#;
321const PYTHON_FILE_LINE_REGEX: &str = r#"File "(?P<file>[^"]+)", line (?P<line>\d+)"#;
322
323static PYTHON_FILE_LINE_MATCHER: LazyLock<Regex> =
324 LazyLock::new(|| Regex::new(PYTHON_FILE_LINE_REGEX).unwrap());
325
326fn python_extract_path_and_line(input: &str) -> Option<(&str, u32)> {
327 if let Some(captures) = PYTHON_FILE_LINE_MATCHER.captures(input) {
328 let path_part = captures.name("file")?.as_str();
329
330 let line_number: u32 = captures.name("line")?.as_str().parse().ok()?;
331 return Some((path_part, line_number));
332 }
333 None
334}
335
336pub struct TerminalBuilder {
337 terminal: Terminal,
338 events_rx: UnboundedReceiver<AlacTermEvent>,
339}
340
341impl TerminalBuilder {
342 pub fn new(
343 working_directory: Option<PathBuf>,
344 python_venv_directory: Option<PathBuf>,
345 task: Option<TaskState>,
346 shell: Shell,
347 mut env: HashMap<String, String>,
348 cursor_shape: CursorShape,
349 alternate_scroll: AlternateScroll,
350 max_scroll_history_lines: Option<usize>,
351 is_ssh_terminal: bool,
352 window: AnyWindowHandle,
353 completion_tx: Sender<Option<ExitStatus>>,
354 cx: &App,
355 ) -> Result<TerminalBuilder> {
356 // If the parent environment doesn't have a locale set
357 // (As is the case when launched from a .app on MacOS),
358 // and the Project doesn't have a locale set, then
359 // set a fallback for our child environment to use.
360 if std::env::var("LANG").is_err() {
361 env.entry("LANG".to_string())
362 .or_insert_with(|| "en_US.UTF-8".to_string());
363 }
364
365 env.insert("ZED_TERM".to_string(), "true".to_string());
366 env.insert("TERM_PROGRAM".to_string(), "zed".to_string());
367 env.insert("TERM".to_string(), "xterm-256color".to_string());
368 env.insert(
369 "TERM_PROGRAM_VERSION".to_string(),
370 release_channel::AppVersion::global(cx).to_string(),
371 );
372
373 let mut terminal_title_override = None;
374
375 let pty_options = {
376 let alac_shell = match shell.clone() {
377 Shell::System => {
378 #[cfg(target_os = "windows")]
379 {
380 Some(alacritty_terminal::tty::Shell::new(
381 util::get_windows_system_shell(),
382 Vec::new(),
383 ))
384 }
385 #[cfg(not(target_os = "windows"))]
386 {
387 None
388 }
389 }
390 Shell::Program(program) => {
391 Some(alacritty_terminal::tty::Shell::new(program, Vec::new()))
392 }
393 Shell::WithArguments {
394 program,
395 args,
396 title_override,
397 } => {
398 terminal_title_override = title_override;
399 Some(alacritty_terminal::tty::Shell::new(program, args))
400 }
401 };
402
403 alacritty_terminal::tty::Options {
404 shell: alac_shell,
405 working_directory: working_directory
406 .clone()
407 .or_else(|| Some(home_dir().to_path_buf())),
408 drain_on_exit: true,
409 env: env.into_iter().collect(),
410 }
411 };
412
413 // Setup Alacritty's env, which modifies the current process's environment
414 alacritty_terminal::tty::setup_env();
415
416 let default_cursor_style = AlacCursorStyle::from(cursor_shape);
417 let scrolling_history = if task.is_some() {
418 // Tasks like `cargo build --all` may produce a lot of output, ergo allow maximum scrolling.
419 // After the task finishes, we do not allow appending to that terminal, so small tasks output should not
420 // cause excessive memory usage over time.
421 MAX_SCROLL_HISTORY_LINES
422 } else {
423 max_scroll_history_lines
424 .unwrap_or(DEFAULT_SCROLL_HISTORY_LINES)
425 .min(MAX_SCROLL_HISTORY_LINES)
426 };
427 let config = Config {
428 scrolling_history,
429 default_cursor_style,
430 ..Config::default()
431 };
432
433 //Spawn a task so the Alacritty EventLoop can communicate with us
434 //TODO: Remove with a bounded sender which can be dispatched on &self
435 let (events_tx, events_rx) = unbounded();
436 //Set up the terminal...
437 let mut term = Term::new(
438 config.clone(),
439 &TerminalBounds::default(),
440 ZedListener(events_tx.clone()),
441 );
442
443 //Alacritty defaults to alternate scrolling being on, so we just need to turn it off.
444 if let AlternateScroll::Off = alternate_scroll {
445 term.unset_private_mode(PrivateMode::Named(NamedPrivateMode::AlternateScroll));
446 }
447
448 let term = Arc::new(FairMutex::new(term));
449
450 //Setup the pty...
451 let pty = match tty::new(
452 &pty_options,
453 TerminalBounds::default().into(),
454 window.window_id().as_u64(),
455 ) {
456 Ok(pty) => pty,
457 Err(error) => {
458 bail!(TerminalError {
459 directory: working_directory,
460 shell,
461 source: error,
462 });
463 }
464 };
465
466 let pty_info = PtyProcessInfo::new(&pty);
467
468 //And connect them together
469 let event_loop = EventLoop::new(
470 term.clone(),
471 ZedListener(events_tx.clone()),
472 pty,
473 pty_options.drain_on_exit,
474 false,
475 )?;
476
477 //Kick things off
478 let pty_tx = event_loop.channel();
479 let _io_thread = event_loop.spawn(); // DANGER
480
481 let terminal = Terminal {
482 task,
483 pty_tx: Notifier(pty_tx),
484 completion_tx,
485 term,
486 term_config: config,
487 title_override: terminal_title_override,
488 events: VecDeque::with_capacity(10), //Should never get this high.
489 last_content: Default::default(),
490 last_mouse: None,
491 matches: Vec::new(),
492 selection_head: None,
493 pty_info,
494 breadcrumb_text: String::new(),
495 scroll_px: px(0.),
496 next_link_id: 0,
497 selection_phase: SelectionPhase::Ended,
498 // hovered_word: false,
499 url_regex: RegexSearch::new(URL_REGEX).unwrap(),
500 word_regex: RegexSearch::new(WORD_REGEX).unwrap(),
501 python_file_line_regex: RegexSearch::new(PYTHON_FILE_LINE_REGEX).unwrap(),
502 vi_mode_enabled: false,
503 is_ssh_terminal,
504 python_venv_directory,
505 };
506
507 Ok(TerminalBuilder {
508 terminal,
509 events_rx,
510 })
511 }
512
513 pub fn subscribe(mut self, cx: &Context<Terminal>) -> Terminal {
514 //Event loop
515 cx.spawn(async move |terminal, cx| {
516 while let Some(event) = self.events_rx.next().await {
517 terminal.update(cx, |terminal, cx| {
518 //Process the first event immediately for lowered latency
519 terminal.process_event(&event, cx);
520 })?;
521
522 'outer: loop {
523 let mut events = Vec::new();
524 let mut timer = cx
525 .background_executor()
526 .timer(Duration::from_millis(4))
527 .fuse();
528 let mut wakeup = false;
529 loop {
530 futures::select_biased! {
531 _ = timer => break,
532 event = self.events_rx.next() => {
533 if let Some(event) = event {
534 if matches!(event, AlacTermEvent::Wakeup) {
535 wakeup = true;
536 } else {
537 events.push(event);
538 }
539
540 if events.len() > 100 {
541 break;
542 }
543 } else {
544 break;
545 }
546 },
547 }
548 }
549
550 if events.is_empty() && !wakeup {
551 smol::future::yield_now().await;
552 break 'outer;
553 }
554
555 terminal.update(cx, |this, cx| {
556 if wakeup {
557 this.process_event(&AlacTermEvent::Wakeup, cx);
558 }
559
560 for event in events {
561 this.process_event(&event, cx);
562 }
563 })?;
564 smol::future::yield_now().await;
565 }
566 }
567
568 anyhow::Ok(())
569 })
570 .detach();
571
572 self.terminal
573 }
574}
575
576#[derive(Debug, Clone, Deserialize, Serialize)]
577pub struct IndexedCell {
578 pub point: AlacPoint,
579 pub cell: Cell,
580}
581
582impl Deref for IndexedCell {
583 type Target = Cell;
584
585 #[inline]
586 fn deref(&self) -> &Cell {
587 &self.cell
588 }
589}
590
591// TODO: Un-pub
592#[derive(Clone)]
593pub struct TerminalContent {
594 pub cells: Vec<IndexedCell>,
595 pub mode: TermMode,
596 pub display_offset: usize,
597 pub selection_text: Option<String>,
598 pub selection: Option<SelectionRange>,
599 pub cursor: RenderableCursor,
600 pub cursor_char: char,
601 pub terminal_bounds: TerminalBounds,
602 pub last_hovered_word: Option<HoveredWord>,
603 pub scrolled_to_top: bool,
604 pub scrolled_to_bottom: bool,
605}
606
607#[derive(Debug, Clone, Eq, PartialEq)]
608pub struct HoveredWord {
609 pub word: String,
610 pub word_match: RangeInclusive<AlacPoint>,
611 pub id: usize,
612}
613
614impl Default for TerminalContent {
615 fn default() -> Self {
616 TerminalContent {
617 cells: Default::default(),
618 mode: Default::default(),
619 display_offset: Default::default(),
620 selection_text: Default::default(),
621 selection: Default::default(),
622 cursor: RenderableCursor {
623 shape: alacritty_terminal::vte::ansi::CursorShape::Block,
624 point: AlacPoint::new(Line(0), Column(0)),
625 },
626 cursor_char: Default::default(),
627 terminal_bounds: Default::default(),
628 last_hovered_word: None,
629 scrolled_to_top: false,
630 scrolled_to_bottom: false,
631 }
632 }
633}
634
635#[derive(PartialEq, Eq)]
636pub enum SelectionPhase {
637 Selecting,
638 Ended,
639}
640
641pub struct Terminal {
642 pty_tx: Notifier,
643 completion_tx: Sender<Option<ExitStatus>>,
644 term: Arc<FairMutex<Term<ZedListener>>>,
645 term_config: Config,
646 events: VecDeque<InternalEvent>,
647 /// This is only used for mouse mode cell change detection
648 last_mouse: Option<(AlacPoint, AlacDirection)>,
649 pub matches: Vec<RangeInclusive<AlacPoint>>,
650 pub last_content: TerminalContent,
651 pub selection_head: Option<AlacPoint>,
652 pub breadcrumb_text: String,
653 pub pty_info: PtyProcessInfo,
654 title_override: Option<SharedString>,
655 pub python_venv_directory: Option<PathBuf>,
656 scroll_px: Pixels,
657 next_link_id: usize,
658 selection_phase: SelectionPhase,
659 url_regex: RegexSearch,
660 word_regex: RegexSearch,
661 python_file_line_regex: RegexSearch,
662 task: Option<TaskState>,
663 vi_mode_enabled: bool,
664 is_ssh_terminal: bool,
665}
666
667pub struct TaskState {
668 pub id: TaskId,
669 pub full_label: String,
670 pub label: String,
671 pub command_label: String,
672 pub status: TaskStatus,
673 pub completion_rx: Receiver<Option<ExitStatus>>,
674 pub hide: HideStrategy,
675 pub show_summary: bool,
676 pub show_command: bool,
677 pub show_rerun: bool,
678}
679
680/// A status of the current terminal tab's task.
681#[derive(Debug, Clone, Copy, PartialEq, Eq)]
682pub enum TaskStatus {
683 /// The task had been started, but got cancelled or somehow otherwise it did not
684 /// report its exit code before the terminal event loop was shut down.
685 Unknown,
686 /// The task is started and running currently.
687 Running,
688 /// After the start, the task stopped running and reported its error code back.
689 Completed { success: bool },
690}
691
692impl TaskStatus {
693 fn register_terminal_exit(&mut self) {
694 if self == &Self::Running {
695 *self = Self::Unknown;
696 }
697 }
698
699 fn register_task_exit(&mut self, error_code: i32) {
700 *self = TaskStatus::Completed {
701 success: error_code == 0,
702 };
703 }
704}
705
706impl Terminal {
707 fn process_event(&mut self, event: &AlacTermEvent, cx: &mut Context<Self>) {
708 match event {
709 AlacTermEvent::Title(title) => {
710 self.breadcrumb_text = title.to_string();
711 cx.emit(Event::BreadcrumbsChanged);
712 }
713 AlacTermEvent::ResetTitle => {
714 self.breadcrumb_text = String::new();
715 cx.emit(Event::BreadcrumbsChanged);
716 }
717 AlacTermEvent::ClipboardStore(_, data) => {
718 cx.write_to_clipboard(ClipboardItem::new_string(data.to_string()))
719 }
720 AlacTermEvent::ClipboardLoad(_, format) => {
721 self.write_to_pty(
722 match &cx.read_from_clipboard().and_then(|item| item.text()) {
723 // The terminal only supports pasting strings, not images.
724 Some(text) => format(text),
725 _ => format(""),
726 },
727 )
728 }
729 AlacTermEvent::PtyWrite(out) => self.write_to_pty(out.clone()),
730 AlacTermEvent::TextAreaSizeRequest(format) => {
731 self.write_to_pty(format(self.last_content.terminal_bounds.into()))
732 }
733 AlacTermEvent::CursorBlinkingChange => {
734 let terminal = self.term.lock();
735 let blinking = terminal.cursor_style().blinking;
736 cx.emit(Event::BlinkChanged(blinking));
737 }
738 AlacTermEvent::Bell => {
739 cx.emit(Event::Bell);
740 }
741 AlacTermEvent::Exit => self.register_task_finished(None, cx),
742 AlacTermEvent::MouseCursorDirty => {
743 //NOOP, Handled in render
744 }
745 AlacTermEvent::Wakeup => {
746 cx.emit(Event::Wakeup);
747
748 if self.pty_info.has_changed() {
749 cx.emit(Event::TitleChanged);
750 }
751 }
752 AlacTermEvent::ColorRequest(index, format) => {
753 // It's important that the color request is processed here to retain relative order
754 // with other PTY writes. Otherwise applications might witness out-of-order
755 // responses to requests. For example: An application sending `OSC 11 ; ? ST`
756 // (color request) followed by `CSI c` (request device attributes) would receive
757 // the response to `CSI c` first.
758 // Instead of locking, we could store the colors in `self.last_content`. But then
759 // we might respond with out of date value if a "set color" sequence is immediately
760 // followed by a color request sequence.
761 let color = self.term.lock().colors()[*index].unwrap_or_else(|| {
762 to_alac_rgb(get_color_at_index(*index, cx.theme().as_ref()))
763 });
764 self.write_to_pty(format(color));
765 }
766 AlacTermEvent::ChildExit(error_code) => {
767 self.register_task_finished(Some(*error_code), cx);
768 }
769 }
770 }
771
772 pub fn selection_started(&self) -> bool {
773 self.selection_phase == SelectionPhase::Selecting
774 }
775
776 fn process_terminal_event(
777 &mut self,
778 event: &InternalEvent,
779 term: &mut Term<ZedListener>,
780 window: &mut Window,
781 cx: &mut Context<Self>,
782 ) {
783 match event {
784 &InternalEvent::Resize(mut new_bounds) => {
785 new_bounds.bounds.size.height =
786 cmp::max(new_bounds.line_height, new_bounds.height());
787 new_bounds.bounds.size.width = cmp::max(new_bounds.cell_width, new_bounds.width());
788
789 self.last_content.terminal_bounds = new_bounds;
790
791 self.pty_tx.0.send(Msg::Resize(new_bounds.into())).ok();
792
793 term.resize(new_bounds);
794 }
795 InternalEvent::Clear => {
796 // Clear back buffer
797 term.clear_screen(ClearMode::Saved);
798
799 let cursor = term.grid().cursor.point;
800
801 // Clear the lines above
802 term.grid_mut().reset_region(..cursor.line);
803
804 // Copy the current line up
805 let line = term.grid()[cursor.line][..Column(term.grid().columns())]
806 .iter()
807 .cloned()
808 .enumerate()
809 .collect::<Vec<(usize, Cell)>>();
810
811 for (i, cell) in line {
812 term.grid_mut()[Line(0)][Column(i)] = cell;
813 }
814
815 // Reset the cursor
816 term.grid_mut().cursor.point =
817 AlacPoint::new(Line(0), term.grid_mut().cursor.point.column);
818 let new_cursor = term.grid().cursor.point;
819
820 // Clear the lines below the new cursor
821 if (new_cursor.line.0 as usize) < term.screen_lines() - 1 {
822 term.grid_mut().reset_region((new_cursor.line + 1)..);
823 }
824
825 cx.emit(Event::Wakeup);
826 }
827 InternalEvent::Scroll(scroll) => {
828 term.scroll_display(*scroll);
829 self.refresh_hovered_word(window);
830
831 if self.vi_mode_enabled {
832 match *scroll {
833 AlacScroll::Delta(delta) => {
834 term.vi_mode_cursor = term.vi_mode_cursor.scroll(&term, delta);
835 }
836 AlacScroll::PageUp => {
837 let lines = term.screen_lines() as i32;
838 term.vi_mode_cursor = term.vi_mode_cursor.scroll(&term, lines);
839 }
840 AlacScroll::PageDown => {
841 let lines = -(term.screen_lines() as i32);
842 term.vi_mode_cursor = term.vi_mode_cursor.scroll(&term, lines);
843 }
844 AlacScroll::Top => {
845 let point = AlacPoint::new(term.topmost_line(), Column(0));
846 term.vi_mode_cursor = ViModeCursor::new(point);
847 }
848 AlacScroll::Bottom => {
849 let point = AlacPoint::new(term.bottommost_line(), Column(0));
850 term.vi_mode_cursor = ViModeCursor::new(point);
851 }
852 }
853 if let Some(mut selection) = term.selection.take() {
854 let point = term.vi_mode_cursor.point;
855 selection.update(point, AlacDirection::Right);
856 term.selection = Some(selection);
857
858 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
859 if let Some(selection_text) = term.selection_to_string() {
860 cx.write_to_primary(ClipboardItem::new_string(selection_text));
861 }
862
863 self.selection_head = Some(point);
864 cx.emit(Event::SelectionsChanged)
865 }
866 }
867 }
868 InternalEvent::SetSelection(selection) => {
869 term.selection = selection.as_ref().map(|(sel, _)| sel.clone());
870
871 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
872 if let Some(selection_text) = term.selection_to_string() {
873 cx.write_to_primary(ClipboardItem::new_string(selection_text));
874 }
875
876 if let Some((_, head)) = selection {
877 self.selection_head = Some(*head);
878 }
879 cx.emit(Event::SelectionsChanged)
880 }
881 InternalEvent::UpdateSelection(position) => {
882 if let Some(mut selection) = term.selection.take() {
883 let (point, side) = grid_point_and_side(
884 *position,
885 self.last_content.terminal_bounds,
886 term.grid().display_offset(),
887 );
888
889 selection.update(point, side);
890 term.selection = Some(selection);
891
892 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
893 if let Some(selection_text) = term.selection_to_string() {
894 cx.write_to_primary(ClipboardItem::new_string(selection_text));
895 }
896
897 self.selection_head = Some(point);
898 cx.emit(Event::SelectionsChanged)
899 }
900 }
901
902 InternalEvent::Copy => {
903 if let Some(txt) = term.selection_to_string() {
904 cx.write_to_clipboard(ClipboardItem::new_string(txt))
905 }
906 }
907 InternalEvent::ScrollToAlacPoint(point) => {
908 term.scroll_to_point(*point);
909 self.refresh_hovered_word(window);
910 }
911 InternalEvent::ToggleViMode => {
912 self.vi_mode_enabled = !self.vi_mode_enabled;
913 term.toggle_vi_mode();
914 }
915 InternalEvent::ViMotion(motion) => {
916 term.vi_motion(*motion);
917 }
918 InternalEvent::FindHyperlink(position, open) => {
919 let prev_hovered_word = self.last_content.last_hovered_word.take();
920
921 let point = grid_point(
922 *position,
923 self.last_content.terminal_bounds,
924 term.grid().display_offset(),
925 )
926 .grid_clamp(term, Boundary::Grid);
927
928 let link = term.grid().index(point).hyperlink();
929 let found_word = if link.is_some() {
930 let mut min_index = point;
931 loop {
932 let new_min_index = min_index.sub(term, Boundary::Cursor, 1);
933 if new_min_index == min_index
934 || term.grid().index(new_min_index).hyperlink() != link
935 {
936 break;
937 } else {
938 min_index = new_min_index
939 }
940 }
941
942 let mut max_index = point;
943 loop {
944 let new_max_index = max_index.add(term, Boundary::Cursor, 1);
945 if new_max_index == max_index
946 || term.grid().index(new_max_index).hyperlink() != link
947 {
948 break;
949 } else {
950 max_index = new_max_index
951 }
952 }
953
954 let url = link.unwrap().uri().to_owned();
955 let url_match = min_index..=max_index;
956
957 Some((url, true, url_match))
958 } else if let Some(url_match) = regex_match_at(term, point, &mut self.url_regex) {
959 let url = term.bounds_to_string(*url_match.start(), *url_match.end());
960 Some((url, true, url_match))
961 } else if let Some(python_match) =
962 regex_match_at(term, point, &mut self.python_file_line_regex)
963 {
964 let matching_line =
965 term.bounds_to_string(*python_match.start(), *python_match.end());
966 python_extract_path_and_line(&matching_line).map(|(file_path, line_number)| {
967 (format!("{file_path}:{line_number}"), false, python_match)
968 })
969 } else if let Some(word_match) = regex_match_at(term, point, &mut self.word_regex) {
970 let file_path = term.bounds_to_string(*word_match.start(), *word_match.end());
971
972 let (sanitized_match, sanitized_word) = 'sanitize: {
973 let mut word_match = word_match;
974 let mut file_path = file_path;
975
976 if is_path_surrounded_by_common_symbols(&file_path) {
977 word_match = Match::new(
978 word_match.start().add(term, Boundary::Grid, 1),
979 word_match.end().sub(term, Boundary::Grid, 1),
980 );
981 file_path = file_path[1..file_path.len() - 1].to_owned();
982 }
983
984 while file_path.ends_with(':') {
985 file_path.pop();
986 word_match = Match::new(
987 *word_match.start(),
988 word_match.end().sub(term, Boundary::Grid, 1),
989 );
990 }
991 let mut colon_count = 0;
992 for c in file_path.chars() {
993 if c == ':' {
994 colon_count += 1;
995 }
996 }
997 // strip trailing comment after colon in case of
998 // file/at/path.rs:row:column:description or error message
999 // so that the file path is `file/at/path.rs:row:column`
1000 if colon_count > 2 {
1001 let last_index = file_path.rfind(':').unwrap();
1002 let prev_is_digit = last_index > 0
1003 && file_path
1004 .chars()
1005 .nth(last_index - 1)
1006 .map_or(false, |c| c.is_ascii_digit());
1007 let next_is_digit = last_index < file_path.len() - 1
1008 && file_path
1009 .chars()
1010 .nth(last_index + 1)
1011 .map_or(true, |c| c.is_ascii_digit());
1012 if prev_is_digit && !next_is_digit {
1013 let stripped_len = file_path.len() - last_index;
1014 word_match = Match::new(
1015 *word_match.start(),
1016 word_match.end().sub(term, Boundary::Grid, stripped_len),
1017 );
1018 file_path = file_path[0..last_index].to_owned();
1019 }
1020 }
1021
1022 break 'sanitize (word_match, file_path);
1023 };
1024
1025 Some((sanitized_word, false, sanitized_match))
1026 } else {
1027 None
1028 };
1029
1030 match found_word {
1031 Some((maybe_url_or_path, is_url, url_match)) => {
1032 let target = if is_url {
1033 // Treat "file://" URLs like file paths to ensure
1034 // that line numbers at the end of the path are
1035 // handled correctly
1036 if let Some(path) = maybe_url_or_path.strip_prefix("file://") {
1037 MaybeNavigationTarget::PathLike(PathLikeTarget {
1038 maybe_path: path.to_string(),
1039 terminal_dir: self.working_directory(),
1040 })
1041 } else {
1042 MaybeNavigationTarget::Url(maybe_url_or_path.clone())
1043 }
1044 } else {
1045 MaybeNavigationTarget::PathLike(PathLikeTarget {
1046 maybe_path: maybe_url_or_path.clone(),
1047 terminal_dir: self.working_directory(),
1048 })
1049 };
1050 if *open {
1051 cx.emit(Event::Open(target));
1052 } else {
1053 self.update_selected_word(
1054 prev_hovered_word,
1055 url_match,
1056 maybe_url_or_path,
1057 target,
1058 cx,
1059 );
1060 }
1061 }
1062 None => {
1063 cx.emit(Event::NewNavigationTarget(None));
1064 }
1065 }
1066 }
1067 }
1068 }
1069
1070 fn update_selected_word(
1071 &mut self,
1072 prev_word: Option<HoveredWord>,
1073 word_match: RangeInclusive<AlacPoint>,
1074 word: String,
1075 navigation_target: MaybeNavigationTarget,
1076 cx: &mut Context<Self>,
1077 ) {
1078 if let Some(prev_word) = prev_word {
1079 if prev_word.word == word && prev_word.word_match == word_match {
1080 self.last_content.last_hovered_word = Some(HoveredWord {
1081 word,
1082 word_match,
1083 id: prev_word.id,
1084 });
1085 return;
1086 }
1087 }
1088
1089 self.last_content.last_hovered_word = Some(HoveredWord {
1090 word: word.clone(),
1091 word_match,
1092 id: self.next_link_id(),
1093 });
1094 cx.emit(Event::NewNavigationTarget(Some(navigation_target)));
1095 cx.notify()
1096 }
1097
1098 fn next_link_id(&mut self) -> usize {
1099 let res = self.next_link_id;
1100 self.next_link_id = self.next_link_id.wrapping_add(1);
1101 res
1102 }
1103
1104 pub fn last_content(&self) -> &TerminalContent {
1105 &self.last_content
1106 }
1107
1108 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape) {
1109 self.term_config.default_cursor_style = cursor_shape.into();
1110 self.term.lock().set_options(self.term_config.clone());
1111 }
1112
1113 pub fn total_lines(&self) -> usize {
1114 let term = self.term.clone();
1115 let terminal = term.lock_unfair();
1116 terminal.total_lines()
1117 }
1118
1119 pub fn viewport_lines(&self) -> usize {
1120 let term = self.term.clone();
1121 let terminal = term.lock_unfair();
1122 terminal.screen_lines()
1123 }
1124
1125 //To test:
1126 //- Activate match on terminal (scrolling and selection)
1127 //- Editor search snapping behavior
1128
1129 pub fn activate_match(&mut self, index: usize) {
1130 if let Some(search_match) = self.matches.get(index).cloned() {
1131 self.set_selection(Some((make_selection(&search_match), *search_match.end())));
1132
1133 self.events
1134 .push_back(InternalEvent::ScrollToAlacPoint(*search_match.start()));
1135 }
1136 }
1137
1138 pub fn select_matches(&mut self, matches: &[RangeInclusive<AlacPoint>]) {
1139 let matches_to_select = self
1140 .matches
1141 .iter()
1142 .filter(|self_match| matches.contains(self_match))
1143 .cloned()
1144 .collect::<Vec<_>>();
1145 for match_to_select in matches_to_select {
1146 self.set_selection(Some((
1147 make_selection(&match_to_select),
1148 *match_to_select.end(),
1149 )));
1150 }
1151 }
1152
1153 pub fn select_all(&mut self) {
1154 let term = self.term.lock();
1155 let start = AlacPoint::new(term.topmost_line(), Column(0));
1156 let end = AlacPoint::new(term.bottommost_line(), term.last_column());
1157 drop(term);
1158 self.set_selection(Some((make_selection(&(start..=end)), end)));
1159 }
1160
1161 fn set_selection(&mut self, selection: Option<(Selection, AlacPoint)>) {
1162 self.events
1163 .push_back(InternalEvent::SetSelection(selection));
1164 }
1165
1166 pub fn copy(&mut self) {
1167 self.events.push_back(InternalEvent::Copy);
1168 }
1169
1170 pub fn clear(&mut self) {
1171 self.events.push_back(InternalEvent::Clear)
1172 }
1173
1174 pub fn scroll_line_up(&mut self) {
1175 self.events
1176 .push_back(InternalEvent::Scroll(AlacScroll::Delta(1)));
1177 }
1178
1179 pub fn scroll_up_by(&mut self, lines: usize) {
1180 self.events
1181 .push_back(InternalEvent::Scroll(AlacScroll::Delta(lines as i32)));
1182 }
1183
1184 pub fn scroll_line_down(&mut self) {
1185 self.events
1186 .push_back(InternalEvent::Scroll(AlacScroll::Delta(-1)));
1187 }
1188
1189 pub fn scroll_down_by(&mut self, lines: usize) {
1190 self.events
1191 .push_back(InternalEvent::Scroll(AlacScroll::Delta(-(lines as i32))));
1192 }
1193
1194 pub fn scroll_page_up(&mut self) {
1195 self.events
1196 .push_back(InternalEvent::Scroll(AlacScroll::PageUp));
1197 }
1198
1199 pub fn scroll_page_down(&mut self) {
1200 self.events
1201 .push_back(InternalEvent::Scroll(AlacScroll::PageDown));
1202 }
1203
1204 pub fn scroll_to_top(&mut self) {
1205 self.events
1206 .push_back(InternalEvent::Scroll(AlacScroll::Top));
1207 }
1208
1209 pub fn scroll_to_bottom(&mut self) {
1210 self.events
1211 .push_back(InternalEvent::Scroll(AlacScroll::Bottom));
1212 }
1213
1214 pub fn scrolled_to_top(&self) -> bool {
1215 self.last_content.scrolled_to_top
1216 }
1217
1218 pub fn scrolled_to_bottom(&self) -> bool {
1219 self.last_content.scrolled_to_bottom
1220 }
1221
1222 ///Resize the terminal and the PTY.
1223 pub fn set_size(&mut self, new_bounds: TerminalBounds) {
1224 if self.last_content.terminal_bounds != new_bounds {
1225 self.events.push_back(InternalEvent::Resize(new_bounds))
1226 }
1227 }
1228
1229 ///Write the Input payload to the tty.
1230 fn write_to_pty(&self, input: impl Into<Vec<u8>>) {
1231 self.pty_tx.notify(input.into());
1232 }
1233
1234 pub fn input(&mut self, input: impl Into<Vec<u8>>) {
1235 self.events
1236 .push_back(InternalEvent::Scroll(AlacScroll::Bottom));
1237 self.events.push_back(InternalEvent::SetSelection(None));
1238
1239 self.write_to_pty(input);
1240 }
1241
1242 pub fn toggle_vi_mode(&mut self) {
1243 self.events.push_back(InternalEvent::ToggleViMode);
1244 }
1245
1246 pub fn vi_motion(&mut self, keystroke: &Keystroke) {
1247 if !self.vi_mode_enabled {
1248 return;
1249 }
1250
1251 let mut key = keystroke.key.clone();
1252 if keystroke.modifiers.shift {
1253 key = key.to_uppercase();
1254 }
1255
1256 let motion: Option<ViMotion> = match key.as_str() {
1257 "h" | "left" => Some(ViMotion::Left),
1258 "j" | "down" => Some(ViMotion::Down),
1259 "k" | "up" => Some(ViMotion::Up),
1260 "l" | "right" => Some(ViMotion::Right),
1261 "w" => Some(ViMotion::WordRight),
1262 "b" if !keystroke.modifiers.control => Some(ViMotion::WordLeft),
1263 "e" => Some(ViMotion::WordRightEnd),
1264 "%" => Some(ViMotion::Bracket),
1265 "$" => Some(ViMotion::Last),
1266 "0" => Some(ViMotion::First),
1267 "^" => Some(ViMotion::FirstOccupied),
1268 "H" => Some(ViMotion::High),
1269 "M" => Some(ViMotion::Middle),
1270 "L" => Some(ViMotion::Low),
1271 _ => None,
1272 };
1273
1274 if let Some(motion) = motion {
1275 let cursor = self.last_content.cursor.point;
1276 let cursor_pos = Point {
1277 x: cursor.column.0 as f32 * self.last_content.terminal_bounds.cell_width,
1278 y: cursor.line.0 as f32 * self.last_content.terminal_bounds.line_height,
1279 };
1280 self.events
1281 .push_back(InternalEvent::UpdateSelection(cursor_pos));
1282 self.events.push_back(InternalEvent::ViMotion(motion));
1283 return;
1284 }
1285
1286 let scroll_motion = match key.as_str() {
1287 "g" => Some(AlacScroll::Top),
1288 "G" => Some(AlacScroll::Bottom),
1289 "b" if keystroke.modifiers.control => Some(AlacScroll::PageUp),
1290 "f" if keystroke.modifiers.control => Some(AlacScroll::PageDown),
1291 "d" if keystroke.modifiers.control => {
1292 let amount = self.last_content.terminal_bounds.line_height().to_f64() as i32 / 2;
1293 Some(AlacScroll::Delta(-amount))
1294 }
1295 "u" if keystroke.modifiers.control => {
1296 let amount = self.last_content.terminal_bounds.line_height().to_f64() as i32 / 2;
1297 Some(AlacScroll::Delta(amount))
1298 }
1299 _ => None,
1300 };
1301
1302 if let Some(scroll_motion) = scroll_motion {
1303 self.events.push_back(InternalEvent::Scroll(scroll_motion));
1304 return;
1305 }
1306
1307 match key.as_str() {
1308 "v" => {
1309 let point = self.last_content.cursor.point;
1310 let selection_type = SelectionType::Simple;
1311 let side = AlacDirection::Right;
1312 let selection = Selection::new(selection_type, point, side);
1313 self.events
1314 .push_back(InternalEvent::SetSelection(Some((selection, point))));
1315 return;
1316 }
1317
1318 "escape" => {
1319 self.events.push_back(InternalEvent::SetSelection(None));
1320 return;
1321 }
1322
1323 "y" => {
1324 self.events.push_back(InternalEvent::Copy);
1325 self.events.push_back(InternalEvent::SetSelection(None));
1326 return;
1327 }
1328
1329 "i" => {
1330 self.scroll_to_bottom();
1331 self.toggle_vi_mode();
1332 return;
1333 }
1334 _ => {}
1335 }
1336 }
1337
1338 pub fn try_keystroke(&mut self, keystroke: &Keystroke, alt_is_meta: bool) -> bool {
1339 if self.vi_mode_enabled {
1340 self.vi_motion(keystroke);
1341 return true;
1342 }
1343
1344 // Keep default terminal behavior
1345 let esc = to_esc_str(keystroke, &self.last_content.mode, alt_is_meta);
1346 if let Some(esc) = esc {
1347 self.input(esc);
1348 true
1349 } else {
1350 false
1351 }
1352 }
1353
1354 pub fn try_modifiers_change(
1355 &mut self,
1356 modifiers: &Modifiers,
1357 window: &Window,
1358 cx: &mut Context<Self>,
1359 ) {
1360 if self
1361 .last_content
1362 .terminal_bounds
1363 .bounds
1364 .contains(&window.mouse_position())
1365 && modifiers.secondary()
1366 {
1367 self.refresh_hovered_word(window);
1368 }
1369 cx.notify();
1370 }
1371
1372 ///Paste text into the terminal
1373 pub fn paste(&mut self, text: &str) {
1374 let paste_text = if self.last_content.mode.contains(TermMode::BRACKETED_PASTE) {
1375 format!("{}{}{}", "\x1b[200~", text.replace('\x1b', ""), "\x1b[201~")
1376 } else {
1377 text.replace("\r\n", "\r").replace('\n', "\r")
1378 };
1379
1380 self.input(paste_text);
1381 }
1382
1383 pub fn sync(&mut self, window: &mut Window, cx: &mut Context<Self>) {
1384 let term = self.term.clone();
1385 let mut terminal = term.lock_unfair();
1386 //Note that the ordering of events matters for event processing
1387 while let Some(e) = self.events.pop_front() {
1388 self.process_terminal_event(&e, &mut terminal, window, cx)
1389 }
1390
1391 self.last_content = Self::make_content(&terminal, &self.last_content);
1392 }
1393
1394 fn make_content(term: &Term<ZedListener>, last_content: &TerminalContent) -> TerminalContent {
1395 let content = term.renderable_content();
1396 TerminalContent {
1397 cells: content
1398 .display_iter
1399 //TODO: Add this once there's a way to retain empty lines
1400 // .filter(|ic| {
1401 // !ic.flags.contains(Flags::HIDDEN)
1402 // && !(ic.bg == Named(NamedColor::Background)
1403 // && ic.c == ' '
1404 // && !ic.flags.contains(Flags::INVERSE))
1405 // })
1406 .map(|ic| IndexedCell {
1407 point: ic.point,
1408 cell: ic.cell.clone(),
1409 })
1410 .collect::<Vec<IndexedCell>>(),
1411 mode: content.mode,
1412 display_offset: content.display_offset,
1413 selection_text: term.selection_to_string(),
1414 selection: content.selection,
1415 cursor: content.cursor,
1416 cursor_char: term.grid()[content.cursor.point].c,
1417 terminal_bounds: last_content.terminal_bounds,
1418 last_hovered_word: last_content.last_hovered_word.clone(),
1419 scrolled_to_top: content.display_offset == term.history_size(),
1420 scrolled_to_bottom: content.display_offset == 0,
1421 }
1422 }
1423
1424 pub fn get_content(&self) -> String {
1425 let term = self.term.lock_unfair();
1426 let start = AlacPoint::new(term.topmost_line(), Column(0));
1427 let end = AlacPoint::new(term.bottommost_line(), term.last_column());
1428 term.bounds_to_string(start, end)
1429 }
1430
1431 pub fn last_n_non_empty_lines(&self, n: usize) -> Vec<String> {
1432 let term = self.term.clone();
1433 let terminal = term.lock_unfair();
1434 let grid = terminal.grid();
1435 let mut lines = Vec::new();
1436
1437 let mut current_line = grid.bottommost_line().0;
1438 let topmost_line = grid.topmost_line().0;
1439
1440 while current_line >= topmost_line && lines.len() < n {
1441 let logical_line_start = self.find_logical_line_start(grid, current_line, topmost_line);
1442 let logical_line = self.construct_logical_line(grid, logical_line_start, current_line);
1443
1444 if let Some(line) = self.process_line(logical_line) {
1445 lines.push(line);
1446 }
1447
1448 // Move to the line above the start of the current logical line
1449 current_line = logical_line_start - 1;
1450 }
1451
1452 lines.reverse();
1453 lines
1454 }
1455
1456 fn find_logical_line_start(&self, grid: &Grid<Cell>, current: i32, topmost: i32) -> i32 {
1457 let mut line_start = current;
1458 while line_start > topmost {
1459 let prev_line = Line(line_start - 1);
1460 let last_cell = &grid[prev_line][Column(grid.columns() - 1)];
1461 if !last_cell.flags.contains(Flags::WRAPLINE) {
1462 break;
1463 }
1464 line_start -= 1;
1465 }
1466 line_start
1467 }
1468
1469 fn construct_logical_line(&self, grid: &Grid<Cell>, start: i32, end: i32) -> String {
1470 let mut logical_line = String::new();
1471 for row in start..=end {
1472 let grid_row = &grid[Line(row)];
1473 logical_line.push_str(&row_to_string(grid_row));
1474 }
1475 logical_line
1476 }
1477
1478 fn process_line(&self, line: String) -> Option<String> {
1479 let trimmed = line.trim_end().to_string();
1480 if !trimmed.is_empty() {
1481 Some(trimmed)
1482 } else {
1483 None
1484 }
1485 }
1486
1487 pub fn focus_in(&self) {
1488 if self.last_content.mode.contains(TermMode::FOCUS_IN_OUT) {
1489 self.write_to_pty("\x1b[I".to_string());
1490 }
1491 }
1492
1493 pub fn focus_out(&mut self) {
1494 if self.last_content.mode.contains(TermMode::FOCUS_IN_OUT) {
1495 self.write_to_pty("\x1b[O".to_string());
1496 }
1497 }
1498
1499 pub fn mouse_changed(&mut self, point: AlacPoint, side: AlacDirection) -> bool {
1500 match self.last_mouse {
1501 Some((old_point, old_side)) => {
1502 if old_point == point && old_side == side {
1503 false
1504 } else {
1505 self.last_mouse = Some((point, side));
1506 true
1507 }
1508 }
1509 None => {
1510 self.last_mouse = Some((point, side));
1511 true
1512 }
1513 }
1514 }
1515
1516 pub fn mouse_mode(&self, shift: bool) -> bool {
1517 self.last_content.mode.intersects(TermMode::MOUSE_MODE) && !shift
1518 }
1519
1520 pub fn mouse_move(&mut self, e: &MouseMoveEvent, cx: &mut Context<Self>) {
1521 let position = e.position - self.last_content.terminal_bounds.bounds.origin;
1522 if self.mouse_mode(e.modifiers.shift) {
1523 let (point, side) = grid_point_and_side(
1524 position,
1525 self.last_content.terminal_bounds,
1526 self.last_content.display_offset,
1527 );
1528
1529 if self.mouse_changed(point, side) {
1530 if let Some(bytes) =
1531 mouse_moved_report(point, e.pressed_button, e.modifiers, self.last_content.mode)
1532 {
1533 self.pty_tx.notify(bytes);
1534 }
1535 }
1536 } else if e.modifiers.secondary() {
1537 self.word_from_position(e.position);
1538 }
1539 cx.notify();
1540 }
1541
1542 fn word_from_position(&mut self, position: Point<Pixels>) {
1543 if self.selection_phase == SelectionPhase::Selecting {
1544 self.last_content.last_hovered_word = None;
1545 } else if self.last_content.terminal_bounds.bounds.contains(&position) {
1546 self.events.push_back(InternalEvent::FindHyperlink(
1547 position - self.last_content.terminal_bounds.bounds.origin,
1548 false,
1549 ));
1550 } else {
1551 self.last_content.last_hovered_word = None;
1552 }
1553 }
1554
1555 pub fn select_word_at_event_position(&mut self, e: &MouseDownEvent) {
1556 let position = e.position - self.last_content.terminal_bounds.bounds.origin;
1557 let (point, side) = grid_point_and_side(
1558 position,
1559 self.last_content.terminal_bounds,
1560 self.last_content.display_offset,
1561 );
1562 let selection = Selection::new(SelectionType::Semantic, point, side);
1563 self.events
1564 .push_back(InternalEvent::SetSelection(Some((selection, point))));
1565 }
1566
1567 pub fn mouse_drag(
1568 &mut self,
1569 e: &MouseMoveEvent,
1570 region: Bounds<Pixels>,
1571 cx: &mut Context<Self>,
1572 ) {
1573 let position = e.position - self.last_content.terminal_bounds.bounds.origin;
1574 if !self.mouse_mode(e.modifiers.shift) {
1575 self.selection_phase = SelectionPhase::Selecting;
1576 // Alacritty has the same ordering, of first updating the selection
1577 // then scrolling 15ms later
1578 self.events
1579 .push_back(InternalEvent::UpdateSelection(position));
1580
1581 // Doesn't make sense to scroll the alt screen
1582 if !self.last_content.mode.contains(TermMode::ALT_SCREEN) {
1583 let scroll_lines = match self.drag_line_delta(e, region) {
1584 Some(value) => value,
1585 None => return,
1586 };
1587
1588 self.events
1589 .push_back(InternalEvent::Scroll(AlacScroll::Delta(scroll_lines)));
1590 }
1591
1592 cx.notify();
1593 }
1594 }
1595
1596 fn drag_line_delta(&self, e: &MouseMoveEvent, region: Bounds<Pixels>) -> Option<i32> {
1597 let top = region.origin.y;
1598 let bottom = region.bottom_left().y;
1599
1600 let scroll_lines = if e.position.y < top {
1601 let scroll_delta = (top - e.position.y).pow(1.1);
1602 (scroll_delta / self.last_content.terminal_bounds.line_height).ceil() as i32
1603 } else if e.position.y > bottom {
1604 let scroll_delta = -((e.position.y - bottom).pow(1.1));
1605 (scroll_delta / self.last_content.terminal_bounds.line_height).floor() as i32
1606 } else {
1607 return None;
1608 };
1609
1610 Some(scroll_lines.clamp(-3, 3))
1611 }
1612
1613 pub fn mouse_down(&mut self, e: &MouseDownEvent, _cx: &mut Context<Self>) {
1614 let position = e.position - self.last_content.terminal_bounds.bounds.origin;
1615 let point = grid_point(
1616 position,
1617 self.last_content.terminal_bounds,
1618 self.last_content.display_offset,
1619 );
1620
1621 if self.mouse_mode(e.modifiers.shift) {
1622 if let Some(bytes) =
1623 mouse_button_report(point, e.button, e.modifiers, true, self.last_content.mode)
1624 {
1625 self.pty_tx.notify(bytes);
1626 }
1627 } else {
1628 match e.button {
1629 MouseButton::Left => {
1630 let (point, side) = grid_point_and_side(
1631 position,
1632 self.last_content.terminal_bounds,
1633 self.last_content.display_offset,
1634 );
1635
1636 let selection_type = match e.click_count {
1637 0 => return, //This is a release
1638 1 => Some(SelectionType::Simple),
1639 2 => Some(SelectionType::Semantic),
1640 3 => Some(SelectionType::Lines),
1641 _ => None,
1642 };
1643
1644 if selection_type == Some(SelectionType::Simple) && e.modifiers.shift {
1645 self.events
1646 .push_back(InternalEvent::UpdateSelection(position));
1647 return;
1648 }
1649
1650 let selection = selection_type
1651 .map(|selection_type| Selection::new(selection_type, point, side));
1652
1653 if let Some(sel) = selection {
1654 self.events
1655 .push_back(InternalEvent::SetSelection(Some((sel, point))));
1656 }
1657 }
1658 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
1659 MouseButton::Middle => {
1660 if let Some(item) = _cx.read_from_primary() {
1661 let text = item.text().unwrap_or_default().to_string();
1662 self.input(text);
1663 }
1664 }
1665 _ => {}
1666 }
1667 }
1668 }
1669
1670 pub fn mouse_up(&mut self, e: &MouseUpEvent, cx: &Context<Self>) {
1671 let setting = TerminalSettings::get_global(cx);
1672
1673 let position = e.position - self.last_content.terminal_bounds.bounds.origin;
1674 if self.mouse_mode(e.modifiers.shift) {
1675 let point = grid_point(
1676 position,
1677 self.last_content.terminal_bounds,
1678 self.last_content.display_offset,
1679 );
1680
1681 if let Some(bytes) =
1682 mouse_button_report(point, e.button, e.modifiers, false, self.last_content.mode)
1683 {
1684 self.pty_tx.notify(bytes);
1685 }
1686 } else {
1687 if e.button == MouseButton::Left && setting.copy_on_select {
1688 self.copy();
1689 }
1690
1691 //Hyperlinks
1692 if self.selection_phase == SelectionPhase::Ended {
1693 let mouse_cell_index =
1694 content_index_for_mouse(position, &self.last_content.terminal_bounds);
1695 if let Some(link) = self.last_content.cells[mouse_cell_index].hyperlink() {
1696 cx.open_url(link.uri());
1697 } else if e.modifiers.secondary() {
1698 self.events
1699 .push_back(InternalEvent::FindHyperlink(position, true));
1700 }
1701 }
1702 }
1703
1704 self.selection_phase = SelectionPhase::Ended;
1705 self.last_mouse = None;
1706 }
1707
1708 ///Scroll the terminal
1709 pub fn scroll_wheel(&mut self, e: &ScrollWheelEvent) {
1710 let mouse_mode = self.mouse_mode(e.shift);
1711
1712 if let Some(scroll_lines) = self.determine_scroll_lines(e, mouse_mode) {
1713 if mouse_mode {
1714 let point = grid_point(
1715 e.position - self.last_content.terminal_bounds.bounds.origin,
1716 self.last_content.terminal_bounds,
1717 self.last_content.display_offset,
1718 );
1719
1720 if let Some(scrolls) = scroll_report(point, scroll_lines, e, self.last_content.mode)
1721 {
1722 for scroll in scrolls {
1723 self.pty_tx.notify(scroll);
1724 }
1725 };
1726 } else if self
1727 .last_content
1728 .mode
1729 .contains(TermMode::ALT_SCREEN | TermMode::ALTERNATE_SCROLL)
1730 && !e.shift
1731 {
1732 self.pty_tx.notify(alt_scroll(scroll_lines))
1733 } else if scroll_lines != 0 {
1734 let scroll = AlacScroll::Delta(scroll_lines);
1735
1736 self.events.push_back(InternalEvent::Scroll(scroll));
1737 }
1738 }
1739 }
1740
1741 fn refresh_hovered_word(&mut self, window: &Window) {
1742 self.word_from_position(window.mouse_position());
1743 }
1744
1745 fn determine_scroll_lines(&mut self, e: &ScrollWheelEvent, mouse_mode: bool) -> Option<i32> {
1746 let scroll_multiplier = if mouse_mode { 1. } else { SCROLL_MULTIPLIER };
1747 let line_height = self.last_content.terminal_bounds.line_height;
1748 match e.touch_phase {
1749 /* Reset scroll state on started */
1750 TouchPhase::Started => {
1751 self.scroll_px = px(0.);
1752 None
1753 }
1754 /* Calculate the appropriate scroll lines */
1755 TouchPhase::Moved => {
1756 let old_offset = (self.scroll_px / line_height) as i32;
1757
1758 self.scroll_px += e.delta.pixel_delta(line_height).y * scroll_multiplier;
1759
1760 let new_offset = (self.scroll_px / line_height) as i32;
1761
1762 // Whenever we hit the edges, reset our stored scroll to 0
1763 // so we can respond to changes in direction quickly
1764 self.scroll_px %= self.last_content.terminal_bounds.height();
1765
1766 Some(new_offset - old_offset)
1767 }
1768 TouchPhase::Ended => None,
1769 }
1770 }
1771
1772 pub fn find_matches(
1773 &self,
1774 mut searcher: RegexSearch,
1775 cx: &Context<Self>,
1776 ) -> Task<Vec<RangeInclusive<AlacPoint>>> {
1777 let term = self.term.clone();
1778 cx.background_spawn(async move {
1779 let term = term.lock();
1780
1781 all_search_matches(&term, &mut searcher).collect()
1782 })
1783 }
1784
1785 pub fn working_directory(&self) -> Option<PathBuf> {
1786 if self.is_ssh_terminal {
1787 // We can't yet reliably detect the working directory of a shell on the
1788 // SSH host. Until we can do that, it doesn't make sense to display
1789 // the working directory on the client and persist that.
1790 None
1791 } else {
1792 self.client_side_working_directory()
1793 }
1794 }
1795
1796 /// Returns the working directory of the process that's connected to the PTY.
1797 /// That means it returns the working directory of the local shell or program
1798 /// that's running inside the terminal.
1799 ///
1800 /// This does *not* return the working directory of the shell that runs on the
1801 /// remote host, in case Zed is connected to a remote host.
1802 fn client_side_working_directory(&self) -> Option<PathBuf> {
1803 self.pty_info
1804 .current
1805 .as_ref()
1806 .map(|process| process.cwd.clone())
1807 }
1808
1809 pub fn title(&self, truncate: bool) -> String {
1810 const MAX_CHARS: usize = 25;
1811 match &self.task {
1812 Some(task_state) => {
1813 if truncate {
1814 truncate_and_trailoff(&task_state.label, MAX_CHARS)
1815 } else {
1816 task_state.full_label.clone()
1817 }
1818 }
1819 None => self
1820 .title_override
1821 .as_ref()
1822 .map(|title_override| title_override.to_string())
1823 .unwrap_or_else(|| {
1824 self.pty_info
1825 .current
1826 .as_ref()
1827 .map(|fpi| {
1828 let process_file = fpi
1829 .cwd
1830 .file_name()
1831 .map(|name| name.to_string_lossy().to_string())
1832 .unwrap_or_default();
1833
1834 let argv = fpi.argv.clone();
1835 let process_name = format!(
1836 "{}{}",
1837 fpi.name,
1838 if !argv.is_empty() {
1839 format!(" {}", (argv[1..]).join(" "))
1840 } else {
1841 "".to_string()
1842 }
1843 );
1844 let (process_file, process_name) = if truncate {
1845 (
1846 truncate_and_trailoff(&process_file, MAX_CHARS),
1847 truncate_and_trailoff(&process_name, MAX_CHARS),
1848 )
1849 } else {
1850 (process_file, process_name)
1851 };
1852 format!("{process_file} — {process_name}")
1853 })
1854 .unwrap_or_else(|| "Terminal".to_string())
1855 }),
1856 }
1857 }
1858
1859 pub fn task(&self) -> Option<&TaskState> {
1860 self.task.as_ref()
1861 }
1862
1863 pub fn wait_for_completed_task(&self, cx: &App) -> Task<Option<ExitStatus>> {
1864 if let Some(task) = self.task() {
1865 if task.status == TaskStatus::Running {
1866 let completion_receiver = task.completion_rx.clone();
1867 return cx.spawn(async move |_| completion_receiver.recv().await.ok().flatten());
1868 } else if let Ok(status) = task.completion_rx.try_recv() {
1869 return Task::ready(status);
1870 }
1871 }
1872 Task::ready(None)
1873 }
1874
1875 fn register_task_finished(&mut self, error_code: Option<i32>, cx: &mut Context<Terminal>) {
1876 let e: Option<ExitStatus> = error_code.map(|code| {
1877 #[cfg(unix)]
1878 {
1879 return std::os::unix::process::ExitStatusExt::from_raw(code);
1880 }
1881 #[cfg(windows)]
1882 {
1883 return std::os::windows::process::ExitStatusExt::from_raw(code as u32);
1884 }
1885 });
1886
1887 self.completion_tx.try_send(e).ok();
1888 let task = match &mut self.task {
1889 Some(task) => task,
1890 None => {
1891 if error_code.is_none() {
1892 cx.emit(Event::CloseTerminal);
1893 }
1894 return;
1895 }
1896 };
1897 if task.status != TaskStatus::Running {
1898 return;
1899 }
1900 match error_code {
1901 Some(error_code) => {
1902 task.status.register_task_exit(error_code);
1903 }
1904 None => {
1905 task.status.register_terminal_exit();
1906 }
1907 };
1908
1909 let (finished_successfully, task_line, command_line) = task_summary(task, error_code);
1910 let mut lines_to_show = Vec::new();
1911 if task.show_summary {
1912 lines_to_show.push(task_line.as_str());
1913 }
1914 if task.show_command {
1915 lines_to_show.push(command_line.as_str());
1916 }
1917
1918 if !lines_to_show.is_empty() {
1919 // SAFETY: the invocation happens on non `TaskStatus::Running` tasks, once,
1920 // after either `AlacTermEvent::Exit` or `AlacTermEvent::ChildExit` events that are spawned
1921 // when Zed task finishes and no more output is made.
1922 // After the task summary is output once, no more text is appended to the terminal.
1923 unsafe { append_text_to_term(&mut self.term.lock(), &lines_to_show) };
1924 }
1925
1926 match task.hide {
1927 HideStrategy::Never => {}
1928 HideStrategy::Always => {
1929 cx.emit(Event::CloseTerminal);
1930 }
1931 HideStrategy::OnSuccess => {
1932 if finished_successfully {
1933 cx.emit(Event::CloseTerminal);
1934 }
1935 }
1936 }
1937 }
1938
1939 pub fn vi_mode_enabled(&self) -> bool {
1940 self.vi_mode_enabled
1941 }
1942}
1943
1944// Helper function to convert a grid row to a string
1945pub fn row_to_string(row: &Row<Cell>) -> String {
1946 row[..Column(row.len())]
1947 .iter()
1948 .map(|cell| cell.c)
1949 .collect::<String>()
1950}
1951
1952fn is_path_surrounded_by_common_symbols(path: &str) -> bool {
1953 // Avoid detecting `[]` or `()` strings as paths, surrounded by common symbols
1954 path.len() > 2
1955 // The rest of the brackets and various quotes cannot be matched by the [`WORD_REGEX`] hence not checked for.
1956 && (path.starts_with('[') && path.ends_with(']')
1957 || path.starts_with('(') && path.ends_with(')'))
1958}
1959
1960const TASK_DELIMITER: &str = "⏵ ";
1961fn task_summary(task: &TaskState, error_code: Option<i32>) -> (bool, String, String) {
1962 let escaped_full_label = task.full_label.replace("\r\n", "\r").replace('\n', "\r");
1963 let (success, task_line) = match error_code {
1964 Some(0) => (
1965 true,
1966 format!("{TASK_DELIMITER}Task `{escaped_full_label}` finished successfully"),
1967 ),
1968 Some(error_code) => (
1969 false,
1970 format!(
1971 "{TASK_DELIMITER}Task `{escaped_full_label}` finished with non-zero error code: {error_code}"
1972 ),
1973 ),
1974 None => (
1975 false,
1976 format!("{TASK_DELIMITER}Task `{escaped_full_label}` finished"),
1977 ),
1978 };
1979 let escaped_command_label = task.command_label.replace("\r\n", "\r").replace('\n', "\r");
1980 let command_line = format!("{TASK_DELIMITER}Command: {escaped_command_label}");
1981 (success, task_line, command_line)
1982}
1983
1984/// Appends a stringified task summary to the terminal, after its output.
1985///
1986/// SAFETY: This function should only be called after terminal's PTY is no longer alive.
1987/// New text being added to the terminal here, uses "less public" APIs,
1988/// which are not maintaining the entire terminal state intact.
1989///
1990///
1991/// The library
1992///
1993/// * does not increment inner grid cursor's _lines_ on `input` calls
1994/// (but displaying the lines correctly and incrementing cursor's columns)
1995///
1996/// * ignores `\n` and \r` character input, requiring the `newline` call instead
1997///
1998/// * does not alter grid state after `newline` call
1999/// so its `bottommost_line` is always the same additions, and
2000/// the cursor's `point` is not updated to the new line and column values
2001///
2002/// * ??? there could be more consequences, and any further "proper" streaming from the PTY might bug and/or panic.
2003/// Still, subsequent `append_text_to_term` invocations are possible and display the contents correctly.
2004///
2005/// Despite the quirks, this is the simplest approach to appending text to the terminal: its alternative, `grid_mut` manipulations,
2006/// do not properly set the scrolling state and display odd text after appending; also those manipulations are more tedious and error-prone.
2007/// The function achieves proper display and scrolling capabilities, at a cost of grid state not properly synchronized.
2008/// This is enough for printing moderately-sized texts like task summaries, but might break or perform poorly for larger texts.
2009unsafe fn append_text_to_term(term: &mut Term<ZedListener>, text_lines: &[&str]) {
2010 term.newline();
2011 term.grid_mut().cursor.point.column = Column(0);
2012 for line in text_lines {
2013 for c in line.chars() {
2014 term.input(c);
2015 }
2016 term.newline();
2017 term.grid_mut().cursor.point.column = Column(0);
2018 }
2019}
2020
2021impl Drop for Terminal {
2022 fn drop(&mut self) {
2023 self.pty_tx.0.send(Msg::Shutdown).ok();
2024 }
2025}
2026
2027impl EventEmitter<Event> for Terminal {}
2028
2029/// Based on alacritty/src/display/hint.rs > regex_match_at
2030/// Retrieve the match, if the specified point is inside the content matching the regex.
2031fn regex_match_at<T>(term: &Term<T>, point: AlacPoint, regex: &mut RegexSearch) -> Option<Match> {
2032 visible_regex_match_iter(term, regex).find(|rm| rm.contains(&point))
2033}
2034
2035/// Copied from alacritty/src/display/hint.rs:
2036/// Iterate over all visible regex matches.
2037pub fn visible_regex_match_iter<'a, T>(
2038 term: &'a Term<T>,
2039 regex: &'a mut RegexSearch,
2040) -> impl Iterator<Item = Match> + 'a {
2041 let viewport_start = Line(-(term.grid().display_offset() as i32));
2042 let viewport_end = viewport_start + term.bottommost_line();
2043 let mut start = term.line_search_left(AlacPoint::new(viewport_start, Column(0)));
2044 let mut end = term.line_search_right(AlacPoint::new(viewport_end, Column(0)));
2045 start.line = start.line.max(viewport_start - MAX_SEARCH_LINES);
2046 end.line = end.line.min(viewport_end + MAX_SEARCH_LINES);
2047
2048 RegexIter::new(start, end, AlacDirection::Right, term, regex)
2049 .skip_while(move |rm| rm.end().line < viewport_start)
2050 .take_while(move |rm| rm.start().line <= viewport_end)
2051}
2052
2053fn make_selection(range: &RangeInclusive<AlacPoint>) -> Selection {
2054 let mut selection = Selection::new(SelectionType::Simple, *range.start(), AlacDirection::Left);
2055 selection.update(*range.end(), AlacDirection::Right);
2056 selection
2057}
2058
2059fn all_search_matches<'a, T>(
2060 term: &'a Term<T>,
2061 regex: &'a mut RegexSearch,
2062) -> impl Iterator<Item = Match> + 'a {
2063 let start = AlacPoint::new(term.grid().topmost_line(), Column(0));
2064 let end = AlacPoint::new(term.grid().bottommost_line(), term.grid().last_column());
2065 RegexIter::new(start, end, AlacDirection::Right, term, regex)
2066}
2067
2068fn content_index_for_mouse(pos: Point<Pixels>, terminal_bounds: &TerminalBounds) -> usize {
2069 let col = (pos.x / terminal_bounds.cell_width()).round() as usize;
2070 let clamped_col = min(col, terminal_bounds.columns() - 1);
2071 let row = (pos.y / terminal_bounds.line_height()).round() as usize;
2072 let clamped_row = min(row, terminal_bounds.screen_lines() - 1);
2073 clamped_row * terminal_bounds.columns() + clamped_col
2074}
2075
2076/// Converts an 8 bit ANSI color to its GPUI equivalent.
2077/// Accepts `usize` for compatibility with the `alacritty::Colors` interface,
2078/// Other than that use case, should only be called with values in the `[0,255]` range
2079pub fn get_color_at_index(index: usize, theme: &Theme) -> Hsla {
2080 let colors = theme.colors();
2081
2082 match index {
2083 // 0-15 are the same as the named colors above
2084 0 => colors.terminal_ansi_black,
2085 1 => colors.terminal_ansi_red,
2086 2 => colors.terminal_ansi_green,
2087 3 => colors.terminal_ansi_yellow,
2088 4 => colors.terminal_ansi_blue,
2089 5 => colors.terminal_ansi_magenta,
2090 6 => colors.terminal_ansi_cyan,
2091 7 => colors.terminal_ansi_white,
2092 8 => colors.terminal_ansi_bright_black,
2093 9 => colors.terminal_ansi_bright_red,
2094 10 => colors.terminal_ansi_bright_green,
2095 11 => colors.terminal_ansi_bright_yellow,
2096 12 => colors.terminal_ansi_bright_blue,
2097 13 => colors.terminal_ansi_bright_magenta,
2098 14 => colors.terminal_ansi_bright_cyan,
2099 15 => colors.terminal_ansi_bright_white,
2100 // 16-231 are mapped to their RGB colors on a 0-5 range per channel
2101 16..=231 => {
2102 let (r, g, b) = rgb_for_index(index as u8); // Split the index into its ANSI-RGB components
2103 let step = (u8::MAX as f32 / 5.).floor() as u8; // Split the RGB range into 5 chunks, with floor so no overflow
2104 rgba_color(r * step, g * step, b * step) // Map the ANSI-RGB components to an RGB color
2105 }
2106 // 232-255 are a 24 step grayscale from black to white
2107 232..=255 => {
2108 let i = index as u8 - 232; // Align index to 0..24
2109 let step = (u8::MAX as f32 / 24.).floor() as u8; // Split the RGB grayscale values into 24 chunks
2110 rgba_color(i * step, i * step, i * step) // Map the ANSI-grayscale components to the RGB-grayscale
2111 }
2112 // For compatibility with the alacritty::Colors interface
2113 // See: https://github.com/alacritty/alacritty/blob/master/alacritty_terminal/src/term/color.rs
2114 256 => colors.terminal_foreground,
2115 257 => colors.terminal_background,
2116 258 => theme.players().local().cursor,
2117 259 => colors.terminal_ansi_dim_black,
2118 260 => colors.terminal_ansi_dim_red,
2119 261 => colors.terminal_ansi_dim_green,
2120 262 => colors.terminal_ansi_dim_yellow,
2121 263 => colors.terminal_ansi_dim_blue,
2122 264 => colors.terminal_ansi_dim_magenta,
2123 265 => colors.terminal_ansi_dim_cyan,
2124 266 => colors.terminal_ansi_dim_white,
2125 267 => colors.terminal_bright_foreground,
2126 268 => colors.terminal_ansi_black, // 'Dim Background', non-standard color
2127
2128 _ => black(),
2129 }
2130}
2131
2132/// Generates the RGB channels in [0, 5] for a given index into the 6x6x6 ANSI color cube.
2133/// See: [8 bit ANSI color](https://en.wikipedia.org/wiki/ANSI_escape_code#8-bit).
2134///
2135/// Wikipedia gives a formula for calculating the index for a given color:
2136///
2137/// ```
2138/// index = 16 + 36 × r + 6 × g + b (0 ≤ r, g, b ≤ 5)
2139/// ```
2140///
2141/// This function does the reverse, calculating the `r`, `g`, and `b` components from a given index.
2142fn rgb_for_index(i: u8) -> (u8, u8, u8) {
2143 debug_assert!((16..=231).contains(&i));
2144 let i = i - 16;
2145 let r = (i - (i % 36)) / 36;
2146 let g = ((i % 36) - (i % 6)) / 6;
2147 let b = (i % 36) % 6;
2148 (r, g, b)
2149}
2150
2151pub fn rgba_color(r: u8, g: u8, b: u8) -> Hsla {
2152 Rgba {
2153 r: (r as f32 / 255.),
2154 g: (g as f32 / 255.),
2155 b: (b as f32 / 255.),
2156 a: 1.,
2157 }
2158 .into()
2159}
2160
2161#[cfg(test)]
2162mod tests {
2163 use alacritty_terminal::{
2164 index::{Column, Line, Point as AlacPoint},
2165 term::cell::Cell,
2166 };
2167 use gpui::{Pixels, Point, bounds, point, size};
2168 use rand::{Rng, distributions::Alphanumeric, rngs::ThreadRng, thread_rng};
2169
2170 use crate::{
2171 IndexedCell, TerminalBounds, TerminalContent, content_index_for_mouse,
2172 python_extract_path_and_line, rgb_for_index,
2173 };
2174
2175 #[test]
2176 fn test_rgb_for_index() {
2177 // Test every possible value in the color cube.
2178 for i in 16..=231 {
2179 let (r, g, b) = rgb_for_index(i);
2180 assert_eq!(i, 16 + 36 * r + 6 * g + b);
2181 }
2182 }
2183
2184 #[test]
2185 fn test_mouse_to_cell_test() {
2186 let mut rng = thread_rng();
2187 const ITERATIONS: usize = 10;
2188 const PRECISION: usize = 1000;
2189
2190 for _ in 0..ITERATIONS {
2191 let viewport_cells = rng.gen_range(15..20);
2192 let cell_size = rng.gen_range(5 * PRECISION..20 * PRECISION) as f32 / PRECISION as f32;
2193
2194 let size = crate::TerminalBounds {
2195 cell_width: Pixels::from(cell_size),
2196 line_height: Pixels::from(cell_size),
2197 bounds: bounds(
2198 Point::default(),
2199 size(
2200 Pixels::from(cell_size * (viewport_cells as f32)),
2201 Pixels::from(cell_size * (viewport_cells as f32)),
2202 ),
2203 ),
2204 };
2205
2206 let cells = get_cells(size, &mut rng);
2207 let content = convert_cells_to_content(size, &cells);
2208
2209 for row in 0..(viewport_cells - 1) {
2210 let row = row as usize;
2211 for col in 0..(viewport_cells - 1) {
2212 let col = col as usize;
2213
2214 let row_offset = rng.gen_range(0..PRECISION) as f32 / PRECISION as f32;
2215 let col_offset = rng.gen_range(0..PRECISION) as f32 / PRECISION as f32;
2216
2217 let mouse_pos = point(
2218 Pixels::from(col as f32 * cell_size + col_offset),
2219 Pixels::from(row as f32 * cell_size + row_offset),
2220 );
2221
2222 let content_index =
2223 content_index_for_mouse(mouse_pos, &content.terminal_bounds);
2224 let mouse_cell = content.cells[content_index].c;
2225 let real_cell = cells[row][col];
2226
2227 assert_eq!(mouse_cell, real_cell);
2228 }
2229 }
2230 }
2231 }
2232
2233 #[test]
2234 fn test_mouse_to_cell_clamp() {
2235 let mut rng = thread_rng();
2236
2237 let size = crate::TerminalBounds {
2238 cell_width: Pixels::from(10.),
2239 line_height: Pixels::from(10.),
2240 bounds: bounds(
2241 Point::default(),
2242 size(Pixels::from(100.), Pixels::from(100.)),
2243 ),
2244 };
2245
2246 let cells = get_cells(size, &mut rng);
2247 let content = convert_cells_to_content(size, &cells);
2248
2249 assert_eq!(
2250 content.cells[content_index_for_mouse(
2251 point(Pixels::from(-10.), Pixels::from(-10.)),
2252 &content.terminal_bounds,
2253 )]
2254 .c,
2255 cells[0][0]
2256 );
2257 assert_eq!(
2258 content.cells[content_index_for_mouse(
2259 point(Pixels::from(1000.), Pixels::from(1000.)),
2260 &content.terminal_bounds,
2261 )]
2262 .c,
2263 cells[9][9]
2264 );
2265 }
2266
2267 fn get_cells(size: TerminalBounds, rng: &mut ThreadRng) -> Vec<Vec<char>> {
2268 let mut cells = Vec::new();
2269
2270 for _ in 0..((size.height() / size.line_height()) as usize) {
2271 let mut row_vec = Vec::new();
2272 for _ in 0..((size.width() / size.cell_width()) as usize) {
2273 let cell_char = rng.sample(Alphanumeric) as char;
2274 row_vec.push(cell_char)
2275 }
2276 cells.push(row_vec)
2277 }
2278
2279 cells
2280 }
2281
2282 fn convert_cells_to_content(
2283 terminal_bounds: TerminalBounds,
2284 cells: &[Vec<char>],
2285 ) -> TerminalContent {
2286 let mut ic = Vec::new();
2287
2288 for (index, row) in cells.iter().enumerate() {
2289 for (cell_index, cell_char) in row.iter().enumerate() {
2290 ic.push(IndexedCell {
2291 point: AlacPoint::new(Line(index as i32), Column(cell_index)),
2292 cell: Cell {
2293 c: *cell_char,
2294 ..Default::default()
2295 },
2296 });
2297 }
2298 }
2299
2300 TerminalContent {
2301 cells: ic,
2302 terminal_bounds,
2303 ..Default::default()
2304 }
2305 }
2306
2307 fn re_test(re: &str, hay: &str, expected: Vec<&str>) {
2308 let results: Vec<_> = regex::Regex::new(re)
2309 .unwrap()
2310 .find_iter(hay)
2311 .map(|m| m.as_str())
2312 .collect();
2313 assert_eq!(results, expected);
2314 }
2315 #[test]
2316 fn test_url_regex() {
2317 re_test(
2318 crate::URL_REGEX,
2319 "test http://example.com test mailto:bob@example.com train",
2320 vec!["http://example.com", "mailto:bob@example.com"],
2321 );
2322 }
2323 #[test]
2324 fn test_word_regex() {
2325 re_test(
2326 crate::WORD_REGEX,
2327 "hello, world! \"What\" is this?",
2328 vec!["hello", "world", "What", "is", "this"],
2329 );
2330 }
2331 #[test]
2332 fn test_word_regex_with_linenum() {
2333 // filename(line) and filename(line,col) as used in MSBuild output
2334 // should be considered a single "word", even though comma is
2335 // usually a word separator
2336 re_test(
2337 crate::WORD_REGEX,
2338 "a Main.cs(20) b",
2339 vec!["a", "Main.cs(20)", "b"],
2340 );
2341 re_test(
2342 crate::WORD_REGEX,
2343 "Main.cs(20,5) Error desc",
2344 vec!["Main.cs(20,5)", "Error", "desc"],
2345 );
2346 // filename:line:col is a popular format for unix tools
2347 re_test(
2348 crate::WORD_REGEX,
2349 "a Main.cs:20:5 b",
2350 vec!["a", "Main.cs:20:5", "b"],
2351 );
2352 // Some tools output "filename:line:col:message", which currently isn't
2353 // handled correctly, but might be in the future
2354 re_test(
2355 crate::WORD_REGEX,
2356 "Main.cs:20:5:Error desc",
2357 vec!["Main.cs:20:5:Error", "desc"],
2358 );
2359 }
2360
2361 #[test]
2362 fn test_python_file_line_regex() {
2363 re_test(
2364 crate::PYTHON_FILE_LINE_REGEX,
2365 "hay File \"/zed/bad_py.py\", line 8 stack",
2366 vec!["File \"/zed/bad_py.py\", line 8"],
2367 );
2368 re_test(crate::PYTHON_FILE_LINE_REGEX, "unrelated", vec![]);
2369 }
2370
2371 #[test]
2372 fn test_python_file_line() {
2373 let inputs: Vec<(&str, Option<(&str, u32)>)> = vec![
2374 (
2375 "File \"/zed/bad_py.py\", line 8",
2376 Some(("/zed/bad_py.py", 8u32)),
2377 ),
2378 ("File \"path/to/zed/bad_py.py\"", None),
2379 ("unrelated", None),
2380 ("", None),
2381 ];
2382 let actual = inputs
2383 .iter()
2384 .map(|input| python_extract_path_and_line(input.0))
2385 .collect::<Vec<_>>();
2386 let expected = inputs.iter().map(|(_, output)| *output).collect::<Vec<_>>();
2387 assert_eq!(actual, expected);
2388 }
2389}