| 1 | //! Confirmation popup for resuming a session from the launch card. |
| 2 | //! |
| 3 | //! Resuming replaces the whole session context, and a single click used to do |
| 4 | //! it instantly — founder live-test: "you just click it and boom you're there |
| 5 | //! ... you don't realize it's happening". The first attempt at a fix put an |
| 6 | //! arming line over the composer dock, which read as one more piece of chrome |
| 7 | //! rather than as a question ("that's even more confusing tbh"). This is the |
| 8 | //! question, as a popup, with the session it is about named in it. |
| 9 | |
| 10 | use crossterm::event::{ |
| 11 | KeyCode, KeyEvent, KeyEventKind, KeyModifiers, MouseButton, MouseEvent, MouseEventKind, |
| 12 | }; |
| 13 | use ratatui::layout::Rect; |
| 14 | use ratatui::prelude::*; |
| 15 | use ratatui::widgets::{Block, Borders, Padding, Paragraph, Widget, Wrap}; |
| 16 | |
| 17 | use crate::tui::views::{ |
| 18 | ModalKind, ModalView, ViewAction, ViewEvent, centered_modal_area, render_modal_surface, |
| 19 | }; |
| 20 | use codewhale_localization::{Locale, MessageId, tr}; |
| 21 | use codewhale_palette as palette; |
| 22 | |
| 23 | pub struct LaunchResumeConfirmView { |
| 24 | session_id: String, |
| 25 | title: String, |
| 26 | detail: String, |
| 27 | locale: Locale, |
| 28 | /// The painted popup, so a click outside it can dismiss. |
| 29 | last_area: std::cell::Cell<Option<Rect>>, |
| 30 | buttons: std::cell::Cell<[Rect; 2]>, |
| 31 | selected: usize, |
| 32 | hovered: Option<usize>, |
| 33 | } |
| 34 | |
| 35 | impl LaunchResumeConfirmView { |
| 36 | #[must_use] |
| 37 | pub fn new(session_id: String, title: String, detail: String, locale: Locale) -> Self { |
| 38 | Self { |
| 39 | session_id, |
| 40 | title, |
| 41 | detail, |
| 42 | locale, |
| 43 | last_area: std::cell::Cell::new(None), |
| 44 | buttons: std::cell::Cell::new([Rect::default(); 2]), |
| 45 | selected: 0, |
| 46 | hovered: None, |
| 47 | } |
| 48 | } |
| 49 | |
| 50 | fn confirm(&self) -> ViewAction { |
| 51 | ViewAction::EmitAndClose(ViewEvent::LaunchResumeConfirmed { |
| 52 | session_id: self.session_id.clone(), |
| 53 | }) |
| 54 | } |
| 55 | } |
| 56 | |
| 57 | impl ModalView for LaunchResumeConfirmView { |
| 58 | fn kind(&self) -> ModalKind { |
| 59 | ModalKind::LaunchResumeConfirm |
| 60 | } |
| 61 | |
| 62 | fn handle_key(&mut self, key: KeyEvent) -> ViewAction { |
| 63 | // Resuming replaces the whole session, so only a plain press answers: |
| 64 | // a release/repeat, or a Ctrl/Alt/Super chord that happens to end in |
| 65 | // Enter or `y`, is not a confirmation (U01-05). Shift stays allowed |
| 66 | // for `Y`. |
| 67 | if key.kind != KeyEventKind::Press { |
| 68 | return ViewAction::None; |
| 69 | } |
| 70 | let chord = key |
| 71 | .modifiers |
| 72 | .intersects(KeyModifiers::CONTROL | KeyModifiers::ALT | KeyModifiers::SUPER); |
| 73 | match key.code { |
| 74 | KeyCode::Enter if !chord => { |
| 75 | if self.selected == 0 { |
| 76 | self.confirm() |
| 77 | } else { |
| 78 | ViewAction::Close |
| 79 | } |
| 80 | } |
| 81 | KeyCode::Tab | KeyCode::BackTab | KeyCode::Left | KeyCode::Right => { |
| 82 | self.selected = 1 - self.selected; |
| 83 | ViewAction::None |
| 84 | } |
| 85 | // `y` is the habit every terminal confirmation teaches; Esc and |
| 86 | // `n` both back out. Nothing else acts, so a stray keystroke |
| 87 | // cannot resume a session by accident. |
| 88 | KeyCode::Char('y') | KeyCode::Char('Y') if !chord => self.confirm(), |
| 89 | KeyCode::Esc | KeyCode::Char('n') | KeyCode::Char('N') => ViewAction::Close, |
| 90 | _ => ViewAction::None, |
| 91 | } |
| 92 | } |
| 93 | |
| 94 | fn handle_mouse(&mut self, mouse: MouseEvent) -> ViewAction { |
| 95 | let target = self |
| 96 | .buttons |
| 97 | .get() |
| 98 | .iter() |
| 99 | .position(|rect| crate::tui::mouse_ui::mouse_hits_rect(mouse, Some(*rect))); |
| 100 | if matches!(mouse.kind, MouseEventKind::Moved) { |
| 101 | self.hovered = target; |
| 102 | return ViewAction::None; |
| 103 | } |
| 104 | if !matches!(mouse.kind, MouseEventKind::Down(MouseButton::Left)) { |
| 105 | return ViewAction::None; |
| 106 | } |
| 107 | if let Some(index) = target { |
| 108 | return if index == 0 { |
| 109 | self.confirm() |
| 110 | } else { |
| 111 | ViewAction::Close |
| 112 | }; |
| 113 | } |
| 114 | // A click outside the popup is a dismissal, never a confirmation: |
| 115 | // the whole point is that resuming needs a deliberate act. |
| 116 | match self.last_area.get() { |
| 117 | Some(area) if crate::tui::mouse_ui::mouse_hits_rect(mouse, Some(area)) => { |
| 118 | ViewAction::None |
| 119 | } |
| 120 | Some(_) => ViewAction::Close, |
| 121 | None => ViewAction::None, |
| 122 | } |
| 123 | } |
| 124 | |
| 125 | fn occupied_region(&self, area: Rect) -> Rect { |
| 126 | centered_modal_area(area, 64, 11, 32, 7) |
| 127 | } |
| 128 | |
| 129 | fn as_any_mut(&mut self) -> &mut dyn std::any::Any { |
| 130 | self |
| 131 | } |
| 132 | |
| 133 | fn render(&self, area: Rect, buf: &mut Buffer) { |
| 134 | let popup = self.occupied_region(area); |
| 135 | self.last_area.set(Some(popup)); |
| 136 | render_modal_surface(area, popup, buf); |
| 137 | |
| 138 | let block = Block::default() |
| 139 | .title(Line::from(Span::styled( |
| 140 | tr(self.locale, MessageId::LaunchResumeConfirmTitle).to_string(), |
| 141 | Style::default().fg(palette::TEXT_PRIMARY).bold(), |
| 142 | ))) |
| 143 | .borders(Borders::ALL) |
| 144 | .border_style(Style::default().fg(palette::BORDER_COLOR)) |
| 145 | .style(Style::default().bg(palette::WHALE_BG)) |
| 146 | .padding(Padding::uniform(1)); |
| 147 | let inner = block.inner(popup); |
| 148 | block.render(popup, buf); |
| 149 | |
| 150 | // Reserve the consequence and controls first. A long session title |
| 151 | // is one clipped line, never a paragraph that can bury the warning. |
| 152 | let body_height = inner.height.saturating_sub(1); |
| 153 | let warning = Paragraph::new(tr(self.locale, MessageId::LaunchResumeConfirmBody)) |
| 154 | .style(Style::default().fg(palette::TEXT_SOFT)) |
| 155 | .wrap(Wrap { trim: true }); |
| 156 | let warning_height = warning |
| 157 | .line_count(inner.width) |
| 158 | .min(usize::from(body_height)) as u16; |
| 159 | let spare = body_height.saturating_sub(warning_height); |
| 160 | let mut y = inner.y; |
| 161 | if spare > 0 { |
| 162 | Paragraph::new(crate::tui::ui_text::truncate_line_to_width( |
| 163 | &self.title, |
| 164 | usize::from(inner.width), |
| 165 | )) |
| 166 | .style(Style::default().fg(palette::TEXT_PRIMARY).bold()) |
| 167 | .render(Rect::new(inner.x, y, inner.width, 1), buf); |
| 168 | y += 1; |
| 169 | } |
| 170 | if spare > 1 { |
| 171 | Paragraph::new(crate::tui::ui_text::truncate_line_to_width( |
| 172 | &self.detail, |
| 173 | usize::from(inner.width), |
| 174 | )) |
| 175 | .style(Style::default().fg(palette::TEXT_MUTED)) |
| 176 | .render(Rect::new(inner.x, y, inner.width, 1), buf); |
| 177 | y += 1; |
| 178 | } |
| 179 | if spare > 2 { |
| 180 | y += 1; |
| 181 | } |
| 182 | warning.render(Rect::new(inner.x, y, inner.width, warning_height), buf); |
| 183 | |
| 184 | // These are real controls, sharing the same measured rectangles for |
| 185 | // paint and pointer input. Keep both reachable in compact terminals. |
| 186 | let button_width = inner.width.saturating_sub(1) / 2; |
| 187 | let y = inner.bottom().saturating_sub(1); |
| 188 | let buttons = [ |
| 189 | Rect::new(inner.x, y, button_width, u16::from(inner.height > 0)), |
| 190 | Rect::new( |
| 191 | inner.x + button_width + 1, |
| 192 | y, |
| 193 | button_width, |
| 194 | u16::from(inner.height > 0), |
| 195 | ), |
| 196 | ]; |
| 197 | self.buttons.set(buttons); |
| 198 | for (index, id) in [ |
| 199 | MessageId::LaunchResumeConfirmResume, |
| 200 | MessageId::LaunchResumeConfirmCancel, |
| 201 | ] |
| 202 | .into_iter() |
| 203 | .enumerate() |
| 204 | { |
| 205 | let label = tr(self.locale, id); |
| 206 | let key = if self.selected == index { |
| 207 | "Enter" |
| 208 | } else if index == 1 { |
| 209 | "Esc" |
| 210 | } else { |
| 211 | "" |
| 212 | }; |
| 213 | let text = if !key.is_empty() |
| 214 | && unicode_width::UnicodeWidthStr::width(label.as_ref()) + key.len() + 3 |
| 215 | <= usize::from(button_width) |
| 216 | { |
| 217 | format!("{label} {key}") |
| 218 | } else { |
| 219 | label.into_owned() |
| 220 | }; |
| 221 | let style = if self.selected == index { |
| 222 | crate::tui::menu_style::selected_row_style() |
| 223 | } else if self.hovered == Some(index) { |
| 224 | crate::tui::menu_style::hovered_row_style().fg(palette::TEXT_PRIMARY) |
| 225 | } else { |
| 226 | Style::default() |
| 227 | .bg(palette::SURFACE_ELEVATED) |
| 228 | .fg(palette::TEXT_PRIMARY) |
| 229 | }; |
| 230 | Paragraph::new(text) |
| 231 | .centered() |
| 232 | .style(style) |
| 233 | .render(buttons[index], buf); |
| 234 | } |
| 235 | } |
| 236 | } |
| 237 | |
| 238 | #[cfg(test)] |
| 239 | mod tests { |
| 240 | use super::*; |
| 241 | use crossterm::event::KeyModifiers; |
| 242 | |
| 243 | fn view() -> LaunchResumeConfirmView { |
| 244 | LaunchResumeConfirmView::new( |
| 245 | "sess-1".to_string(), |
| 246 | "refactor the parser".to_string(), |
| 247 | "3h ago · 12 msgs".to_string(), |
| 248 | Locale::En, |
| 249 | ) |
| 250 | } |
| 251 | |
| 252 | #[test] |
| 253 | fn enter_confirms_and_esc_walks_away() { |
| 254 | let mut confirm = view(); |
| 255 | match confirm.handle_key(KeyEvent::new(KeyCode::Enter, KeyModifiers::NONE)) { |
| 256 | ViewAction::EmitAndClose(ViewEvent::LaunchResumeConfirmed { session_id }) => { |
| 257 | assert_eq!(session_id, "sess-1"); |
| 258 | } |
| 259 | other => panic!("Enter must confirm, got {other:?}"), |
| 260 | } |
| 261 | |
| 262 | let mut confirm = view(); |
| 263 | assert!(matches!( |
| 264 | confirm.handle_key(KeyEvent::new(KeyCode::Esc, KeyModifiers::NONE)), |
| 265 | ViewAction::Close |
| 266 | )); |
| 267 | |
| 268 | // A stray keystroke resumes nothing: the whole point is that this |
| 269 | // takes a deliberate act. |
| 270 | let mut confirm = view(); |
| 271 | assert!(matches!( |
| 272 | confirm.handle_key(KeyEvent::new(KeyCode::Char('k'), KeyModifiers::NONE)), |
| 273 | ViewAction::None |
| 274 | )); |
| 275 | |
| 276 | // U01-05: a chord that ends in Enter or `y`, and a key release, are |
| 277 | // not a confirmation. |
| 278 | for key in [ |
| 279 | KeyEvent::new(KeyCode::Enter, KeyModifiers::CONTROL), |
| 280 | KeyEvent::new(KeyCode::Char('y'), KeyModifiers::ALT), |
| 281 | KeyEvent::new(KeyCode::Char('y'), KeyModifiers::SUPER), |
| 282 | KeyEvent::new_with_kind( |
| 283 | KeyCode::Enter, |
| 284 | KeyModifiers::NONE, |
| 285 | crossterm::event::KeyEventKind::Release, |
| 286 | ), |
| 287 | ] { |
| 288 | let mut confirm = view(); |
| 289 | assert!( |
| 290 | matches!(confirm.handle_key(key), ViewAction::None), |
| 291 | "{key:?} must not resume" |
| 292 | ); |
| 293 | } |
| 294 | } |
| 295 | |
| 296 | #[test] |
| 297 | fn the_popup_names_the_session_it_is_asking_about() { |
| 298 | let confirm = view(); |
| 299 | let area = Rect::new(0, 0, 100, 30); |
| 300 | let mut buf = Buffer::empty(area); |
| 301 | confirm.render(area, &mut buf); |
| 302 | let painted: String = (0..area.height) |
| 303 | .map(|y| { |
| 304 | (0..area.width) |
| 305 | .map(|x| buf[(x, y)].symbol()) |
| 306 | .collect::<String>() |
| 307 | }) |
| 308 | .collect::<Vec<_>>() |
| 309 | .join("\n"); |
| 310 | assert!( |
| 311 | painted.contains("refactor the parser"), |
| 312 | "the session title is in the popup:\n{painted}" |
| 313 | ); |
| 314 | assert!( |
| 315 | painted.contains("12 msgs"), |
| 316 | "so is enough detail to recognise it:\n{painted}" |
| 317 | ); |
| 318 | } |
| 319 | } |
| 320 |