| 1 | //! Transcript, composer and fleet surfaces over caller-owned data. |
| 2 | //! |
| 3 | //! These are renderers, not another session or input runtime. Hosts own the |
| 4 | //! author, task, route, state, elapsed words and text editing. The visual |
| 5 | //! grammar comes from the Engine's `history/message.rs`, `tool_card.rs`, |
| 6 | //! `agent_card.rs` and `composer_chrome.rs`: a speaker anchor, continuation |
| 7 | //! rails, semantic tool summaries, agent identity and a quiet input ledge. |
| 8 | |
| 9 | use std::borrow::Cow; |
| 10 | |
| 11 | use ratatui::{ |
| 12 | buffer::Buffer, |
| 13 | layout::Rect, |
| 14 | style::Modifier, |
| 15 | text::{Line, Span}, |
| 16 | widgets::Widget, |
| 17 | }; |
| 18 | use unicode_segmentation::UnicodeSegmentation; |
| 19 | |
| 20 | use crate::{ |
| 21 | Depth, HorizonRule, KeyHints, Paint, Panel, Role, State, StatusMark, Theme, glyphs, text, |
| 22 | }; |
| 23 | |
| 24 | /// A plain-text transcript entry. The host supplies its author and marker; |
| 25 | /// this component neither parses Markdown nor guesses who sent the message. |
| 26 | /// [`Message::native`] uses the current TUI's inline speaker mark and dim |
| 27 | /// continuation rail. A nonempty author adds the optional heading variation. |
| 28 | #[derive(Clone, Debug)] |
| 29 | pub struct Message<'a> { |
| 30 | pub author: Cow<'a, str>, |
| 31 | pub body: Cow<'a, str>, |
| 32 | pub author_role: Role, |
| 33 | pub marker: &'static str, |
| 34 | } |
| 35 | |
| 36 | impl<'a> Message<'a> { |
| 37 | #[must_use] |
| 38 | pub fn new(author: impl Into<Cow<'a, str>>, body: impl Into<Cow<'a, str>>) -> Self { |
| 39 | Self { |
| 40 | author: author.into(), |
| 41 | body: body.into(), |
| 42 | author_role: Role::Foreground, |
| 43 | marker: glyphs::CURRENT, |
| 44 | } |
| 45 | } |
| 46 | |
| 47 | /// The current Codewhale transcript's plain-text message decoration: |
| 48 | /// `● body` first, then `▏ ` before each continuation. The host can choose |
| 49 | /// another speaker with [`Self::marker`] and its ink with [`Self::role`]. |
| 50 | /// Whitespace-only assistant entries render nothing. No Markdown parser, |
| 51 | /// streaming clock, or session state is introduced by this constructor. |
| 52 | #[must_use] |
| 53 | pub fn native(body: impl Into<Cow<'a, str>>) -> Self { |
| 54 | Self::new("", body).role(Role::Primary) |
| 55 | } |
| 56 | |
| 57 | #[must_use] |
| 58 | pub fn role(mut self, role: Role) -> Self { |
| 59 | self.author_role = role; |
| 60 | self |
| 61 | } |
| 62 | |
| 63 | /// Use a charter mark such as [`glyphs::USER`] for a user-authored entry. |
| 64 | #[must_use] |
| 65 | pub fn marker(mut self, marker: &'static str) -> Self { |
| 66 | self.marker = marker; |
| 67 | self |
| 68 | } |
| 69 | |
| 70 | fn lines(&self, width: u16, theme: &Theme) -> Vec<Line<'static>> { |
| 71 | if width == 0 { |
| 72 | return Vec::new(); |
| 73 | } |
| 74 | if self.author.is_empty() { |
| 75 | return self.native_lines(width, theme); |
| 76 | } |
| 77 | let mut lines = vec![Line::from(vec![ |
| 78 | Span::styled( |
| 79 | safe(glyphs::pick(self.marker, theme.ascii())), |
| 80 | theme.fg(self.author_role), |
| 81 | ), |
| 82 | Span::raw(" "), |
| 83 | Span::styled( |
| 84 | safe(&self.author), |
| 85 | theme.fg(self.author_role).add_modifier(Modifier::BOLD), |
| 86 | ), |
| 87 | ])]; |
| 88 | let rail = width >= 3; |
| 89 | let body = wrapped( |
| 90 | &self.body, |
| 91 | width.saturating_sub(if rail { 2 } else { 0 }), |
| 92 | theme.ascii(), |
| 93 | ); |
| 94 | lines.extend(body_lines(&body, rail, theme, Role::Foreground)); |
| 95 | lines |
| 96 | } |
| 97 | |
| 98 | fn native_lines(&self, width: u16, theme: &Theme) -> Vec<Line<'static>> { |
| 99 | // The native assistant skips stray blank streaming cells, including |
| 100 | // caller text whose only visible content disappears during sanitizing. |
| 101 | if self.marker == glyphs::CURRENT |
| 102 | && self |
| 103 | .body |
| 104 | .split('\n') |
| 105 | .all(|line| text::display_safe(line).trim().is_empty()) |
| 106 | { |
| 107 | return Vec::new(); |
| 108 | } |
| 109 | let marker = safe(glyphs::pick(self.marker, theme.ascii())); |
| 110 | let marker_width = text::width(&marker); |
| 111 | // Native message.rs reserves prefix + two cells before wrapping, |
| 112 | // while the painted prefix itself occupies prefix + one cell. |
| 113 | let reserved = u16::try_from(marker_width.saturating_add(2)).unwrap_or(u16::MAX); |
| 114 | let mut body = wrapped( |
| 115 | &self.body, |
| 116 | width.saturating_sub(reserved).max(1), |
| 117 | theme.ascii(), |
| 118 | ); |
| 119 | if body.lines.is_empty() { |
| 120 | body.lines.push(String::new()); |
| 121 | } |
| 122 | body.lines |
| 123 | .into_iter() |
| 124 | .enumerate() |
| 125 | .map(|(index, body)| { |
| 126 | let mut spans = Vec::new(); |
| 127 | if !marker.is_empty() { |
| 128 | if index == 0 { |
| 129 | spans.push(Span::styled( |
| 130 | marker.clone(), |
| 131 | theme.fg(self.author_role).add_modifier(Modifier::BOLD), |
| 132 | )); |
| 133 | spans.push(Span::raw(" ")); |
| 134 | } else { |
| 135 | let rail = glyphs::pick(glyphs::TRANSCRIPT_RAIL, theme.ascii()); |
| 136 | spans.push(Span::styled( |
| 137 | format!("{}{}", rail.trim_end(), " ".repeat(marker_width)), |
| 138 | theme.fg(Role::Dim), |
| 139 | )); |
| 140 | } |
| 141 | } |
| 142 | spans.push(Span::styled(body, theme.fg(Role::Foreground))); |
| 143 | Line::from(spans) |
| 144 | }) |
| 145 | .collect() |
| 146 | } |
| 147 | } |
| 148 | |
| 149 | impl Paint for Message<'_> { |
| 150 | fn paint(&self, area: Rect, buf: &mut Buffer, theme: &Theme) { |
| 151 | let area = area.intersection(buf.area); |
| 152 | for (index, line) in self |
| 153 | .lines(area.width, theme) |
| 154 | .iter() |
| 155 | .take(usize::from(area.height)) |
| 156 | .enumerate() |
| 157 | { |
| 158 | super::workbench::row( |
| 159 | Rect { |
| 160 | y: area.y.saturating_add(rows(index)), |
| 161 | height: 1, |
| 162 | ..area |
| 163 | }, |
| 164 | buf, |
| 165 | line, |
| 166 | ); |
| 167 | } |
| 168 | } |
| 169 | |
| 170 | fn height(&self, width: u16, theme: &Theme) -> u16 { |
| 171 | rows(self.lines(width, theme).len()) |
| 172 | } |
| 173 | } |
| 174 | |
| 175 | /// A tool preview with a semantic title and subject supplied by the host. |
| 176 | /// |
| 177 | /// `omitted_lines` counts logical output lines the host removed before |
| 178 | /// supplying `output`. If the viewport clips output, the footer also counts |
| 179 | /// logical lines whose full content is not visible (including a partially |
| 180 | /// visible final line). A wrapped line is never counted twice. |
| 181 | #[derive(Clone, Debug)] |
| 182 | pub struct ToolCard<'a> { |
| 183 | pub title: Cow<'a, str>, |
| 184 | pub subject: Cow<'a, str>, |
| 185 | pub status: StatusMark, |
| 186 | pub elapsed: Option<Cow<'a, str>>, |
| 187 | pub output: Cow<'a, str>, |
| 188 | pub omitted_lines: usize, |
| 189 | /// Words after the count. Hosts can supply translated copy. |
| 190 | pub omission_label: Cow<'a, str>, |
| 191 | } |
| 192 | |
| 193 | impl<'a> ToolCard<'a> { |
| 194 | #[must_use] |
| 195 | pub fn new( |
| 196 | title: impl Into<Cow<'a, str>>, |
| 197 | subject: impl Into<Cow<'a, str>>, |
| 198 | state: State, |
| 199 | ) -> Self { |
| 200 | Self { |
| 201 | title: title.into(), |
| 202 | subject: subject.into(), |
| 203 | status: StatusMark::new(state), |
| 204 | elapsed: None, |
| 205 | output: Cow::Borrowed(""), |
| 206 | omitted_lines: 0, |
| 207 | omission_label: Cow::Borrowed("output lines not fully shown"), |
| 208 | } |
| 209 | } |
| 210 | |
| 211 | #[must_use] |
| 212 | pub fn output(mut self, output: impl Into<Cow<'a, str>>) -> Self { |
| 213 | self.output = output.into(); |
| 214 | self |
| 215 | } |
| 216 | |
| 217 | #[must_use] |
| 218 | pub fn elapsed(mut self, elapsed: impl Into<Cow<'a, str>>) -> Self { |
| 219 | self.elapsed = Some(elapsed.into()); |
| 220 | self |
| 221 | } |
| 222 | |
| 223 | #[must_use] |
| 224 | pub fn omitted_lines(mut self, count: usize) -> Self { |
| 225 | self.omitted_lines = count; |
| 226 | self |
| 227 | } |
| 228 | |
| 229 | #[must_use] |
| 230 | pub fn omission_label(mut self, label: impl Into<Cow<'a, str>>) -> Self { |
| 231 | self.omission_label = label.into(); |
| 232 | self |
| 233 | } |
| 234 | |
| 235 | #[must_use] |
| 236 | pub fn status_word(mut self, word: impl Into<Cow<'static, str>>) -> Self { |
| 237 | self.status = self.status.word(word); |
| 238 | self |
| 239 | } |
| 240 | |
| 241 | fn heading(&self, width: u16, theme: &Theme) -> Vec<Line<'static>> { |
| 242 | let mut lines = vec![activity_header( |
| 243 | &self.title, |
| 244 | &self.status, |
| 245 | self.elapsed.as_deref(), |
| 246 | theme, |
| 247 | )]; |
| 248 | let subject = wrapped(&self.subject, width, theme.ascii()); |
| 249 | lines.extend( |
| 250 | subject |
| 251 | .lines |
| 252 | .into_iter() |
| 253 | .map(|line| Line::from(Span::styled(line, theme.fg(Role::Primary)))), |
| 254 | ); |
| 255 | lines |
| 256 | } |
| 257 | } |
| 258 | |
| 259 | impl Paint for ToolCard<'_> { |
| 260 | fn paint(&self, area: Rect, buf: &mut Buffer, theme: &Theme) { |
| 261 | let area = area.intersection(buf.area); |
| 262 | if area.is_empty() { |
| 263 | return; |
| 264 | } |
| 265 | let inner = Panel::new(Depth::Raised).draw(area, buf, theme); |
| 266 | if inner.is_empty() { |
| 267 | return; |
| 268 | } |
| 269 | let heading = self.heading(inner.width, theme); |
| 270 | paint_lines(&heading, inner, buf); |
| 271 | let output_area = below(inner, rows(heading.len())); |
| 272 | if output_area.is_empty() { |
| 273 | return; |
| 274 | } |
| 275 | let rail = output_area.width >= 3; |
| 276 | let output = wrapped( |
| 277 | &self.output, |
| 278 | output_area.width.saturating_sub(if rail { 2 } else { 0 }), |
| 279 | theme.ascii(), |
| 280 | ); |
| 281 | let clipped = output.lines.len() > usize::from(output_area.height); |
| 282 | let needs_footer = |
| 283 | self.omitted_lines > 0 || clipped || output.hidden_lines(output.lines.len()) > 0; |
| 284 | let visible = usize::from(output_area.height.saturating_sub(u16::from(needs_footer))); |
| 285 | let shown = visible.min(output.lines.len()); |
| 286 | let omitted = self |
| 287 | .omitted_lines |
| 288 | .saturating_add(output.hidden_lines(shown)); |
| 289 | let output_lines = body_lines(&output, rail, theme, Role::Muted); |
| 290 | paint_lines( |
| 291 | &output_lines, |
| 292 | Rect { |
| 293 | height: rows(shown), |
| 294 | ..output_area |
| 295 | }, |
| 296 | buf, |
| 297 | ); |
| 298 | if needs_footer && omitted > 0 { |
| 299 | let footer = Line::from(Span::styled( |
| 300 | format!("{omitted} {}", safe(&self.omission_label)), |
| 301 | theme.fg(Role::Hint), |
| 302 | )); |
| 303 | footer.render( |
| 304 | Rect { |
| 305 | y: output_area.y.saturating_add(rows(shown)), |
| 306 | height: 1, |
| 307 | ..output_area |
| 308 | }, |
| 309 | buf, |
| 310 | ); |
| 311 | } |
| 312 | } |
| 313 | |
| 314 | fn height(&self, width: u16, theme: &Theme) -> u16 { |
| 315 | let inner = panel_width(width, theme); |
| 316 | if inner == 0 { |
| 317 | return panel_height(0, width, theme); |
| 318 | } |
| 319 | let output = wrapped( |
| 320 | &self.output, |
| 321 | inner.saturating_sub(if inner >= 3 { 2 } else { 0 }), |
| 322 | theme.ascii(), |
| 323 | ); |
| 324 | let footer = |
| 325 | usize::from(self.omitted_lines > 0 || output.hidden_lines(output.lines.len()) > 0); |
| 326 | panel_height( |
| 327 | rows( |
| 328 | self.heading(inner, theme) |
| 329 | .len() |
| 330 | .saturating_add(output.lines.len()) |
| 331 | .saturating_add(footer), |
| 332 | ), |
| 333 | width, |
| 334 | theme, |
| 335 | ) |
| 336 | } |
| 337 | } |
| 338 | |
| 339 | /// Display-only input chrome. Text, placeholder, context and hint words are |
| 340 | /// caller-owned. The host continues to own editing, cursor placement, history, |
| 341 | /// completion, submission predicates and input handling. |
| 342 | /// |
| 343 | /// ```no_run |
| 344 | /// use codewhale_ratatui::{Composer, Paint, Theme}; |
| 345 | /// # fn draw(frame: &mut ratatui::Frame<'_>) { |
| 346 | /// let theme = Theme::detect(); |
| 347 | /// let composer = Composer::new("Review the changes") |
| 348 | /// .context("codewhale-ratatui / main"); |
| 349 | /// frame.render_widget(composer.themed(&theme), frame.area()); |
| 350 | /// # } |
| 351 | /// ``` |
| 352 | #[derive(Clone, Debug)] |
| 353 | pub struct Composer<'a> { |
| 354 | pub text: Cow<'a, str>, |
| 355 | pub placeholder: Cow<'a, str>, |
| 356 | pub context: Option<Cow<'a, str>>, |
| 357 | pub hints: Option<&'a KeyHints>, |
| 358 | pub focused: bool, |
| 359 | pub prompt: &'static str, |
| 360 | } |
| 361 | |
| 362 | impl<'a> Composer<'a> { |
| 363 | #[must_use] |
| 364 | pub fn new(text: impl Into<Cow<'a, str>>) -> Self { |
| 365 | Self { |
| 366 | text: text.into(), |
| 367 | placeholder: Cow::Borrowed("Ask Codewhale to do something"), |
| 368 | context: None, |
| 369 | hints: None, |
| 370 | focused: false, |
| 371 | prompt: "›", |
| 372 | } |
| 373 | } |
| 374 | |
| 375 | #[must_use] |
| 376 | pub fn placeholder(mut self, placeholder: impl Into<Cow<'a, str>>) -> Self { |
| 377 | self.placeholder = placeholder.into(); |
| 378 | self |
| 379 | } |
| 380 | |
| 381 | /// A host-provided repository, branch, mode or route summary. Nothing is |
| 382 | /// discovered or inferred by the component. |
| 383 | #[must_use] |
| 384 | pub fn context(mut self, context: impl Into<Cow<'a, str>>) -> Self { |
| 385 | self.context = Some(context.into()); |
| 386 | self |
| 387 | } |
| 388 | |
| 389 | #[must_use] |
| 390 | pub fn hints(mut self, hints: &'a KeyHints) -> Self { |
| 391 | self.hints = Some(hints); |
| 392 | self |
| 393 | } |
| 394 | |
| 395 | #[must_use] |
| 396 | pub fn focused(mut self, focused: bool) -> Self { |
| 397 | self.focused = focused; |
| 398 | self |
| 399 | } |
| 400 | |
| 401 | #[must_use] |
| 402 | pub fn prompt(mut self, prompt: &'static str) -> Self { |
| 403 | self.prompt = prompt; |
| 404 | self |
| 405 | } |
| 406 | |
| 407 | fn input_lines(&self, width: u16, theme: &Theme) -> Vec<Line<'static>> { |
| 408 | if width == 0 { |
| 409 | return Vec::new(); |
| 410 | } |
| 411 | let prompt = safe(glyphs::pick(self.prompt, theme.ascii())); |
| 412 | let lead = rows(text::width(&prompt).saturating_add(1)).min(width.saturating_sub(1)); |
| 413 | let placeholder = self.text.is_empty(); |
| 414 | let content = if placeholder { |
| 415 | &self.placeholder |
| 416 | } else { |
| 417 | &self.text |
| 418 | }; |
| 419 | let input = wrapped(content, width.saturating_sub(lead), theme.ascii()); |
| 420 | let body_role = if placeholder { |
| 421 | Role::Hint |
| 422 | } else { |
| 423 | Role::Foreground |
| 424 | }; |
| 425 | let prompt_role = if self.focused { |
| 426 | Role::Primary |
| 427 | } else { |
| 428 | Role::Muted |
| 429 | }; |
| 430 | let mut lines: Vec<Line<'static>> = input |
| 431 | .lines |
| 432 | .into_iter() |
| 433 | .enumerate() |
| 434 | .map(|(index, line)| { |
| 435 | let prefix = if index == 0 { |
| 436 | text::pad(&prompt, usize::from(lead), theme.ascii()) |
| 437 | } else { |
| 438 | " ".repeat(usize::from(lead)) |
| 439 | }; |
| 440 | Line::from(vec![ |
| 441 | Span::styled(prefix, theme.fg(prompt_role)), |
| 442 | Span::styled(line, theme.fg(body_role)), |
| 443 | ]) |
| 444 | }) |
| 445 | .collect(); |
| 446 | if lines.is_empty() { |
| 447 | lines.push(Line::from("")); |
| 448 | } |
| 449 | lines |
| 450 | } |
| 451 | } |
| 452 | |
| 453 | impl Paint for Composer<'_> { |
| 454 | fn paint(&self, area: Rect, buf: &mut Buffer, theme: &Theme) { |
| 455 | let area = area.intersection(buf.area); |
| 456 | if area.is_empty() { |
| 457 | return; |
| 458 | } |
| 459 | let mut input_area = area; |
| 460 | // Compact viewports give their sole row to text before chrome. |
| 461 | if area.height >= 2 { |
| 462 | let mut horizon = HorizonRule::new(); |
| 463 | if let Some(context) = &self.context { |
| 464 | horizon = horizon.label(context.clone()); |
| 465 | } |
| 466 | horizon.paint(Rect { height: 1, ..area }, buf, theme); |
| 467 | input_area = below(area, 1); |
| 468 | } |
| 469 | let hints = self |
| 470 | .hints |
| 471 | .map(|hints| hints.lines(area.width, theme)) |
| 472 | .unwrap_or_default(); |
| 473 | let input = self.input_lines(input_area.width, theme); |
| 474 | // Reserve a hints rail only when a row of caller text still fits. |
| 475 | let hints_height = rows(hints.len()).min(input_area.height.saturating_sub(1)); |
| 476 | let text_area = Rect { |
| 477 | height: input_area.height.saturating_sub(hints_height), |
| 478 | ..input_area |
| 479 | }; |
| 480 | paint_lines(&input, text_area, buf); |
| 481 | if hints_height > 0 { |
| 482 | paint_lines( |
| 483 | &hints, |
| 484 | Rect { |
| 485 | y: text_area.bottom(), |
| 486 | height: hints_height, |
| 487 | ..input_area |
| 488 | }, |
| 489 | buf, |
| 490 | ); |
| 491 | } |
| 492 | } |
| 493 | |
| 494 | fn height(&self, width: u16, theme: &Theme) -> u16 { |
| 495 | if width == 0 { |
| 496 | return 0; |
| 497 | } |
| 498 | let hints = self.hints.map_or(0, |hints| hints.height(width, theme)); |
| 499 | 1_u16 |
| 500 | .saturating_add(rows(self.input_lines(width, theme).len())) |
| 501 | .saturating_add(hints) |
| 502 | } |
| 503 | } |
| 504 | |
| 505 | /// One agent's own identity and reported work. The component has no mailbox, |
| 506 | /// timers, provider routing, state transitions or inherited parent task. |
| 507 | #[derive(Clone, Debug)] |
| 508 | pub struct AgentCard<'a> { |
| 509 | pub title: Cow<'a, str>, |
| 510 | pub status: StatusMark, |
| 511 | pub role: Option<Cow<'a, str>>, |
| 512 | pub route: Option<Cow<'a, str>>, |
| 513 | pub task: Cow<'a, str>, |
| 514 | pub elapsed: Option<Cow<'a, str>>, |
| 515 | } |
| 516 | |
| 517 | impl<'a> AgentCard<'a> { |
| 518 | #[must_use] |
| 519 | pub fn new(title: impl Into<Cow<'a, str>>, state: State) -> Self { |
| 520 | Self { |
| 521 | title: title.into(), |
| 522 | status: StatusMark::new(state), |
| 523 | role: None, |
| 524 | route: None, |
| 525 | task: Cow::Borrowed(""), |
| 526 | elapsed: None, |
| 527 | } |
| 528 | } |
| 529 | |
| 530 | #[must_use] |
| 531 | pub fn role(mut self, role: impl Into<Cow<'a, str>>) -> Self { |
| 532 | self.role = Some(role.into()); |
| 533 | self |
| 534 | } |
| 535 | |
| 536 | #[must_use] |
| 537 | pub fn route(mut self, route: impl Into<Cow<'a, str>>) -> Self { |
| 538 | self.route = Some(route.into()); |
| 539 | self |
| 540 | } |
| 541 | |
| 542 | #[must_use] |
| 543 | pub fn task(mut self, task: impl Into<Cow<'a, str>>) -> Self { |
| 544 | self.task = task.into(); |
| 545 | self |
| 546 | } |
| 547 | |
| 548 | #[must_use] |
| 549 | pub fn elapsed(mut self, elapsed: impl Into<Cow<'a, str>>) -> Self { |
| 550 | self.elapsed = Some(elapsed.into()); |
| 551 | self |
| 552 | } |
| 553 | |
| 554 | #[must_use] |
| 555 | pub fn status_word(mut self, word: impl Into<Cow<'static, str>>) -> Self { |
| 556 | self.status = self.status.word(word); |
| 557 | self |
| 558 | } |
| 559 | |
| 560 | fn lines(&self, width: u16, theme: &Theme) -> Vec<Line<'static>> { |
| 561 | if width == 0 { |
| 562 | return Vec::new(); |
| 563 | } |
| 564 | let mut lines = vec![activity_header( |
| 565 | &self.title, |
| 566 | &self.status, |
| 567 | self.elapsed.as_deref(), |
| 568 | theme, |
| 569 | )]; |
| 570 | let identity: Vec<_> = [self.role.as_deref(), self.route.as_deref()] |
| 571 | .into_iter() |
| 572 | .flatten() |
| 573 | .map(safe) |
| 574 | .collect(); |
| 575 | if !identity.is_empty() { |
| 576 | let identity = wrapped(&identity.join(" / "), width, theme.ascii()); |
| 577 | lines.extend( |
| 578 | identity |
| 579 | .lines |
| 580 | .into_iter() |
| 581 | .map(|line| Line::from(Span::styled(line, theme.fg(Role::Muted)))), |
| 582 | ); |
| 583 | } |
| 584 | let rail = width >= 3; |
| 585 | let task = wrapped( |
| 586 | &self.task, |
| 587 | width.saturating_sub(if rail { 2 } else { 0 }), |
| 588 | theme.ascii(), |
| 589 | ); |
| 590 | lines.extend(body_lines(&task, rail, theme, Role::Foreground)); |
| 591 | lines |
| 592 | } |
| 593 | } |
| 594 | |
| 595 | impl Paint for AgentCard<'_> { |
| 596 | fn paint(&self, area: Rect, buf: &mut Buffer, theme: &Theme) { |
| 597 | let area = area.intersection(buf.area); |
| 598 | if area.is_empty() { |
| 599 | return; |
| 600 | } |
| 601 | let inner = Panel::new(Depth::Raised).draw(area, buf, theme); |
| 602 | paint_lines(&self.lines(inner.width, theme), inner, buf); |
| 603 | } |
| 604 | |
| 605 | fn height(&self, width: u16, theme: &Theme) -> u16 { |
| 606 | panel_height( |
| 607 | rows(self.lines(panel_width(width, theme), theme).len()), |
| 608 | width, |
| 609 | theme, |
| 610 | ) |
| 611 | } |
| 612 | } |
| 613 | |
| 614 | /// A compact fleet rail. Each entry retains its own reported status, role, |
| 615 | /// route, task and elapsed text; no fleet-wide success is inferred. |
| 616 | #[derive(Clone, Debug)] |
| 617 | pub struct Fleet<'a> { |
| 618 | pub title: Cow<'a, str>, |
| 619 | pub agents: Vec<AgentCard<'a>>, |
| 620 | pub empty_label: Cow<'a, str>, |
| 621 | pub omission_label: Cow<'a, str>, |
| 622 | } |
| 623 | |
| 624 | impl<'a> Fleet<'a> { |
| 625 | #[must_use] |
| 626 | pub fn new(agents: Vec<AgentCard<'a>>) -> Self { |
| 627 | Self { |
| 628 | title: Cow::Borrowed("Fleet"), |
| 629 | agents, |
| 630 | empty_label: Cow::Borrowed("No agents reported"), |
| 631 | omission_label: Cow::Borrowed("agents not fully shown"), |
| 632 | } |
| 633 | } |
| 634 | |
| 635 | #[must_use] |
| 636 | pub fn title(mut self, title: impl Into<Cow<'a, str>>) -> Self { |
| 637 | self.title = title.into(); |
| 638 | self |
| 639 | } |
| 640 | |
| 641 | #[must_use] |
| 642 | pub fn empty_label(mut self, label: impl Into<Cow<'a, str>>) -> Self { |
| 643 | self.empty_label = label.into(); |
| 644 | self |
| 645 | } |
| 646 | |
| 647 | #[must_use] |
| 648 | pub fn omission_label(mut self, label: impl Into<Cow<'a, str>>) -> Self { |
| 649 | self.omission_label = label.into(); |
| 650 | self |
| 651 | } |
| 652 | } |
| 653 | |
| 654 | impl Paint for Fleet<'_> { |
| 655 | fn paint(&self, area: Rect, buf: &mut Buffer, theme: &Theme) { |
| 656 | let area = area.intersection(buf.area); |
| 657 | if area.is_empty() { |
| 658 | return; |
| 659 | } |
| 660 | let inner = Panel::new(Depth::Deep).draw(area, buf, theme); |
| 661 | if inner.is_empty() { |
| 662 | return; |
| 663 | } |
| 664 | Line::from(Span::styled( |
| 665 | safe(&self.title), |
| 666 | theme.fg(Role::Foreground).add_modifier(Modifier::BOLD), |
| 667 | )) |
| 668 | .render(Rect { height: 1, ..inner }, buf); |
| 669 | let body = below(inner, 1); |
| 670 | if body.is_empty() { |
| 671 | return; |
| 672 | } |
| 673 | if self.agents.is_empty() { |
| 674 | Line::from(Span::styled(safe(&self.empty_label), theme.fg(Role::Hint))) |
| 675 | .render(body, buf); |
| 676 | return; |
| 677 | } |
| 678 | let mut lines = Vec::new(); |
| 679 | let mut ends = Vec::new(); |
| 680 | for agent in &self.agents { |
| 681 | if !lines.is_empty() { |
| 682 | lines.push(Line::from("")); |
| 683 | } |
| 684 | lines.extend(agent.lines(body.width, theme)); |
| 685 | ends.push(lines.len()); |
| 686 | } |
| 687 | let clipped = lines.len() > usize::from(body.height); |
| 688 | let visible = usize::from(body.height.saturating_sub(u16::from(clipped))); |
| 689 | paint_lines( |
| 690 | &lines, |
| 691 | Rect { |
| 692 | height: rows(visible), |
| 693 | ..body |
| 694 | }, |
| 695 | buf, |
| 696 | ); |
| 697 | if clipped { |
| 698 | let hidden = ends |
| 699 | .len() |
| 700 | .saturating_sub(ends.partition_point(|end| *end <= visible)); |
| 701 | Line::from(Span::styled( |
| 702 | format!("{hidden} {}", safe(&self.omission_label)), |
| 703 | theme.fg(Role::Hint), |
| 704 | )) |
| 705 | .render( |
| 706 | Rect { |
| 707 | y: body.y.saturating_add(rows(visible)), |
| 708 | height: 1, |
| 709 | ..body |
| 710 | }, |
| 711 | buf, |
| 712 | ); |
| 713 | } |
| 714 | } |
| 715 | |
| 716 | fn height(&self, width: u16, theme: &Theme) -> u16 { |
| 717 | if width == 0 { |
| 718 | return 0; |
| 719 | } |
| 720 | let inner_width = width.saturating_sub(if width >= 8 { 2 } else { 0 }); |
| 721 | let content = if self.agents.is_empty() { |
| 722 | 1 |
| 723 | } else { |
| 724 | self.agents |
| 725 | .iter() |
| 726 | .map(|agent| agent.lines(inner_width, theme).len()) |
| 727 | .sum::<usize>() |
| 728 | .saturating_add(self.agents.len().saturating_sub(1)) |
| 729 | }; |
| 730 | rows(content.saturating_add(1)) |
| 731 | } |
| 732 | } |
| 733 | |
| 734 | // Splitting logical lines before display_safe preserves authored line breaks |
| 735 | // while rejecting terminal controls and bidi overrides within each line. |
| 736 | fn safe(value: &str) -> String { |
| 737 | text::display_safe(value).into_owned() |
| 738 | } |
| 739 | |
| 740 | #[derive(Default)] |
| 741 | struct Wrapped { |
| 742 | lines: Vec<String>, |
| 743 | /// End-exclusive row index and whether every grapheme fitted. |
| 744 | ends: Vec<(usize, bool)>, |
| 745 | } |
| 746 | |
| 747 | impl Wrapped { |
| 748 | fn hidden_lines(&self, visible: usize) -> usize { |
| 749 | self.ends |
| 750 | .iter() |
| 751 | .filter(|(end, complete)| *end > visible || !complete) |
| 752 | .count() |
| 753 | } |
| 754 | } |
| 755 | |
| 756 | fn wrapped(value: &str, width: u16, ascii: bool) -> Wrapped { |
| 757 | let mut result = Wrapped::default(); |
| 758 | if value.is_empty() || width == 0 { |
| 759 | return result; |
| 760 | } |
| 761 | let width = usize::from(width); |
| 762 | for source in value.split('\n') { |
| 763 | let source = safe(source); |
| 764 | let mut current = String::new(); |
| 765 | let mut cells = 0usize; |
| 766 | let mut complete = true; |
| 767 | for grapheme in source.graphemes(true) { |
| 768 | let size = text::width(grapheme); |
| 769 | if cells.saturating_add(size) > width && !current.is_empty() { |
| 770 | // Prefer an authored whitespace boundary. Long words still |
| 771 | // wrap between whole graphemes; indentation stays intact. |
| 772 | let boundary = current |
| 773 | .grapheme_indices(true) |
| 774 | .filter(|(_, cluster)| cluster.chars().all(char::is_whitespace)) |
| 775 | .map(|(index, cluster)| index + cluster.len()) |
| 776 | .next_back() |
| 777 | .filter(|end| { |
| 778 | current[..*end] |
| 779 | .chars() |
| 780 | .any(|character| !character.is_whitespace()) |
| 781 | }); |
| 782 | if let Some(end) = boundary { |
| 783 | let tail = current.split_off(end); |
| 784 | result.lines.push(std::mem::replace(&mut current, tail)); |
| 785 | cells = text::width(¤t); |
| 786 | } else { |
| 787 | result.lines.push(std::mem::take(&mut current)); |
| 788 | cells = 0; |
| 789 | } |
| 790 | if cells.saturating_add(size) > width && !current.is_empty() { |
| 791 | result.lines.push(std::mem::take(&mut current)); |
| 792 | cells = 0; |
| 793 | } |
| 794 | } |
| 795 | if size > width { |
| 796 | // A wide grapheme cannot fit in a one-cell viewport. Show an |
| 797 | // explicit cut mark, never split it or overwrite the neighbor. |
| 798 | result |
| 799 | .lines |
| 800 | .push(text::truncate(grapheme, width, ascii).into_owned()); |
| 801 | complete = false; |
| 802 | } else { |
| 803 | current.push_str(grapheme); |
| 804 | cells = cells.saturating_add(size); |
| 805 | } |
| 806 | } |
| 807 | if !current.is_empty() || source.is_empty() { |
| 808 | result.lines.push(current); |
| 809 | } |
| 810 | result.ends.push((result.lines.len(), complete)); |
| 811 | } |
| 812 | result |
| 813 | } |
| 814 | |
| 815 | fn body_lines(body: &Wrapped, rail: bool, theme: &Theme, role: Role) -> Vec<Line<'static>> { |
| 816 | body.lines |
| 817 | .iter() |
| 818 | .map(|line| { |
| 819 | let mut spans = Vec::new(); |
| 820 | if rail { |
| 821 | spans.push(Span::styled( |
| 822 | glyphs::pick(glyphs::TRANSCRIPT_RAIL, theme.ascii()), |
| 823 | theme.fg(Role::Border), |
| 824 | )); |
| 825 | } |
| 826 | spans.push(Span::styled(line.clone(), theme.fg(role))); |
| 827 | Line::from(spans) |
| 828 | }) |
| 829 | .collect() |
| 830 | } |
| 831 | |
| 832 | fn activity_header( |
| 833 | title: &str, |
| 834 | status: &StatusMark, |
| 835 | elapsed: Option<&str>, |
| 836 | theme: &Theme, |
| 837 | ) -> Line<'static> { |
| 838 | let mut spans = vec![ |
| 839 | Span::styled(status.glyph(theme), theme.fg(status.state.role())), |
| 840 | Span::raw(" "), |
| 841 | Span::styled( |
| 842 | safe(title), |
| 843 | theme.fg(Role::Foreground).add_modifier(Modifier::BOLD), |
| 844 | ), |
| 845 | Span::raw(" "), |
| 846 | Span::styled(safe(&status.word), theme.fg(status.state.role())), |
| 847 | ]; |
| 848 | if let Some(elapsed) = elapsed { |
| 849 | spans.push(Span::raw(" ")); |
| 850 | spans.push(Span::styled(safe(elapsed), theme.fg(Role::Muted))); |
| 851 | } |
| 852 | Line::from(spans) |
| 853 | } |
| 854 | |
| 855 | fn paint_lines(lines: &[Line<'_>], area: Rect, buf: &mut Buffer) { |
| 856 | if area.is_empty() { |
| 857 | return; |
| 858 | } |
| 859 | for (index, line) in lines.iter().take(usize::from(area.height)).enumerate() { |
| 860 | line.render( |
| 861 | Rect { |
| 862 | y: area.y.saturating_add(rows(index)), |
| 863 | height: 1, |
| 864 | ..area |
| 865 | }, |
| 866 | buf, |
| 867 | ); |
| 868 | } |
| 869 | } |
| 870 | |
| 871 | fn below(area: Rect, used: u16) -> Rect { |
| 872 | let used = used.min(area.height); |
| 873 | Rect { |
| 874 | y: area.y.saturating_add(used), |
| 875 | height: area.height.saturating_sub(used), |
| 876 | ..area |
| 877 | } |
| 878 | } |
| 879 | |
| 880 | fn rows(count: usize) -> u16 { |
| 881 | u16::try_from(count).unwrap_or(u16::MAX) |
| 882 | } |
| 883 | |
| 884 | fn panel_width(width: u16, theme: &Theme) -> u16 { |
| 885 | let inner = width.saturating_sub(if raised_edged(theme) { 2 } else { 0 }); |
| 886 | inner.saturating_sub(if inner >= 8 { 2 } else { 0 }) |
| 887 | } |
| 888 | |
| 889 | fn panel_height(content: u16, width: u16, theme: &Theme) -> u16 { |
| 890 | if width == 0 { |
| 891 | return 0; |
| 892 | } |
| 893 | if !raised_edged(theme) { |
| 894 | return content; |
| 895 | } |
| 896 | let bordered = content.saturating_add(2); |
| 897 | bordered.saturating_add(if bordered >= 6 { 2 } else { 0 }) |
| 898 | } |
| 899 | |
| 900 | fn raised_edged(theme: &Theme) -> bool { |
| 901 | !theme.grounds_differ(Role::Surface, Role::Background) |
| 902 | } |
| 903 |