vtcode_tui/core_tui/
session.rs

1use std::{collections::VecDeque, sync::Arc, time::Instant};
2
3#[cfg(test)]
4use anstyle::Color as AnsiColorEnum;
5use anstyle::RgbColor;
6use ratatui::crossterm::event::{
7    Event as CrosstermEvent, KeyCode, KeyEvent, KeyEventKind, MouseEvent, MouseEventKind,
8};
9
10use ratatui::{
11    Frame,
12    layout::{Constraint, Layout, Rect},
13    text::{Line, Span, Text},
14    widgets::{Clear, ListState, Widget},
15};
16use tokio::sync::mpsc::{UnboundedReceiver, UnboundedSender};
17
18use super::{
19    style::{measure_text_width, ratatui_color_from_ansi, ratatui_style_from_inline},
20    types::{
21        DiffPreviewState, InlineCommand, InlineEvent, InlineHeaderContext, InlineMessageKind,
22        InlineTextStyle, InlineTheme, OverlayRequest,
23    },
24};
25use crate::config::constants::ui;
26use crate::ui::tui::widgets::SessionWidget;
27
28pub mod file_palette;
29mod header;
30mod impl_events;
31mod impl_init;
32mod impl_input;
33mod impl_layout;
34mod impl_logs;
35mod impl_render;
36mod impl_scroll;
37mod impl_style;
38mod inline_list;
39mod input;
40mod input_manager;
41mod list_panel;
42mod message;
43pub mod modal;
44pub mod mouse_selection;
45mod navigation;
46mod queue;
47pub mod render;
48mod scroll;
49pub mod slash;
50pub mod slash_palette;
51pub mod styling;
52mod text_utils;
53mod transcript;
54pub mod utils;
55pub mod wrapping;
56
57// New modular components (refactored from main session.rs)
58mod command;
59mod editing;
60
61pub mod config;
62mod diff_preview;
63mod events;
64pub mod history_picker;
65mod message_renderer;
66mod messages;
67mod palette;
68mod reflow;
69mod reverse_search;
70mod spinner;
71mod state;
72pub mod terminal_capabilities;
73mod terminal_title;
74#[cfg(test)]
75mod tests;
76mod tool_renderer;
77mod trust;
78
79use self::file_palette::FilePalette;
80use self::history_picker::HistoryPickerState;
81use self::input_manager::InputManager;
82use self::message::{MessageLabels, MessageLine};
83use self::modal::{ModalState, WizardModalState};
84
85use self::config::AppearanceConfig;
86pub(crate) use self::input::status_requires_shimmer;
87use self::mouse_selection::MouseSelectionState;
88use self::queue::QueueOverlay;
89use self::scroll::ScrollManager;
90use self::slash_palette::SlashPalette;
91use self::spinner::{ShimmerState, ThinkingSpinner};
92use self::styling::SessionStyles;
93use self::transcript::TranscriptReflowCache;
94#[cfg(test)]
95use super::types::InlineHeaderHighlight;
96// TaskPlan integration intentionally omitted in this UI crate.
97use crate::ui::tui::log::{LogEntry, highlight_log_entry};
98
99const USER_PREFIX: &str = "";
100const PLACEHOLDER_COLOR: RgbColor =
101    RgbColor(ui::PLACEHOLDER_R, ui::PLACEHOLDER_G, ui::PLACEHOLDER_B);
102const MAX_LOG_LINES: usize = 256;
103const MAX_LOG_DRAIN_PER_TICK: usize = 256;
104
105#[derive(Clone, Debug)]
106struct CollapsedPaste {
107    line_index: usize,
108    full_text: String,
109}
110
111pub(crate) enum ActiveOverlay {
112    Modal(Box<ModalState>),
113    Wizard(Box<WizardModalState>),
114    Diff(Box<DiffPreviewState>),
115}
116
117impl ActiveOverlay {
118    fn as_modal(&self) -> Option<&ModalState> {
119        match self {
120            Self::Modal(state) => Some(state),
121            Self::Wizard(_) | Self::Diff(_) => None,
122        }
123    }
124
125    fn as_modal_mut(&mut self) -> Option<&mut ModalState> {
126        match self {
127            Self::Modal(state) => Some(state),
128            Self::Wizard(_) | Self::Diff(_) => None,
129        }
130    }
131
132    fn as_wizard(&self) -> Option<&WizardModalState> {
133        match self {
134            Self::Wizard(state) => Some(state),
135            Self::Modal(_) | Self::Diff(_) => None,
136        }
137    }
138
139    fn as_wizard_mut(&mut self) -> Option<&mut WizardModalState> {
140        match self {
141            Self::Wizard(state) => Some(state),
142            Self::Modal(_) | Self::Diff(_) => None,
143        }
144    }
145
146    fn as_diff(&self) -> Option<&DiffPreviewState> {
147        match self {
148            Self::Diff(state) => Some(state),
149            Self::Modal(_) | Self::Wizard(_) => None,
150        }
151    }
152
153    fn as_diff_mut(&mut self) -> Option<&mut DiffPreviewState> {
154        match self {
155            Self::Diff(state) => Some(state),
156            Self::Modal(_) | Self::Wizard(_) => None,
157        }
158    }
159
160    fn is_modal_like(&self) -> bool {
161        matches!(self, Self::Modal(_) | Self::Wizard(_))
162    }
163
164    fn restore_input(&self) -> bool {
165        match self {
166            Self::Modal(state) => state.restore_input,
167            Self::Wizard(_) | Self::Diff(_) => true,
168        }
169    }
170
171    fn restore_cursor(&self) -> bool {
172        match self {
173            Self::Modal(state) => state.restore_cursor,
174            Self::Wizard(_) | Self::Diff(_) => true,
175        }
176    }
177}
178
179pub struct Session {
180    // --- Managers (Phase 2) ---
181    /// Manages user input, cursor, and command history
182    pub(crate) input_manager: InputManager,
183    /// Manages scroll state and viewport metrics
184    pub(crate) scroll_manager: ScrollManager,
185    user_scrolled: bool,
186
187    // --- Message Management ---
188    pub(crate) lines: Vec<MessageLine>,
189    collapsed_pastes: Vec<CollapsedPaste>,
190    pub(crate) theme: InlineTheme,
191    pub(crate) styles: SessionStyles,
192    pub(crate) appearance: AppearanceConfig,
193    pub(crate) header_context: InlineHeaderContext,
194    pub(crate) header_rows: u16,
195    pub(crate) labels: MessageLabels,
196
197    // --- Prompt/Input Display ---
198    prompt_prefix: String,
199    prompt_style: InlineTextStyle,
200    placeholder: Option<String>,
201    placeholder_style: Option<InlineTextStyle>,
202    pub(crate) input_status_left: Option<String>,
203    pub(crate) input_status_right: Option<String>,
204    input_compact_mode: bool,
205
206    // --- UI State ---
207    slash_palette: SlashPalette,
208    #[allow(dead_code)]
209    navigation_state: ListState,
210    input_enabled: bool,
211    cursor_visible: bool,
212    pub(crate) needs_redraw: bool,
213    pub(crate) needs_full_clear: bool,
214    /// Track if transcript content changed (not just scroll position)
215    pub(crate) transcript_content_changed: bool,
216    should_exit: bool,
217    scroll_cursor_steady_until: Option<Instant>,
218    last_shimmer_active: bool,
219    pub(crate) view_rows: u16,
220    pub(crate) input_height: u16,
221    pub(crate) transcript_rows: u16,
222    pub(crate) transcript_width: u16,
223    pub(crate) transcript_view_top: usize,
224    transcript_area: Option<Rect>,
225    input_area: Option<Rect>,
226
227    // --- Logging ---
228    log_receiver: Option<UnboundedReceiver<LogEntry>>,
229    log_lines: VecDeque<Arc<Text<'static>>>,
230    log_cached_text: Option<Arc<Text<'static>>>,
231    log_evicted: bool,
232    pub(crate) show_logs: bool,
233
234    // --- Rendering ---
235    transcript_cache: Option<TranscriptReflowCache>,
236    /// Cache of visible lines by (scroll_offset, width) - shared via Arc for zero-copy reads
237    /// Avoids expensive clone on cache hits
238    pub(crate) visible_lines_cache: Option<(usize, u16, Arc<Vec<Line<'static>>>)>,
239    pub(crate) queued_inputs: Vec<String>,
240    queue_overlay_cache: Option<QueueOverlay>,
241    queue_overlay_version: u64,
242    active_overlay: Option<ActiveOverlay>,
243    overlay_queue: VecDeque<OverlayRequest>,
244    line_revision_counter: u64,
245    /// Track the first line that needs reflow/update to avoid O(N) scans
246    first_dirty_line: Option<usize>,
247    in_tool_code_fence: bool,
248
249    // --- Palette Management ---
250    pub(crate) file_palette: Option<FilePalette>,
251    pub(crate) file_palette_active: bool,
252    pub(crate) inline_lists_visible: bool,
253
254    // --- Thinking Indicator ---
255    pub(crate) thinking_spinner: ThinkingSpinner,
256    pub(crate) shimmer_state: ShimmerState,
257
258    // --- Reverse Search ---
259    pub(crate) reverse_search_state: reverse_search::ReverseSearchState,
260
261    // --- History Picker (Ctrl+R fuzzy search) ---
262    pub(crate) history_picker_state: HistoryPickerState,
263
264    // --- PTY Session Management ---
265    pub(crate) active_pty_sessions: Option<Arc<std::sync::atomic::AtomicUsize>>,
266
267    // --- Clipboard for yank/paste operations ---
268    #[allow(dead_code)]
269    pub(crate) clipboard: String,
270
271    // --- Mouse Text Selection ---
272    pub(crate) mouse_selection: MouseSelectionState,
273
274    pub(crate) skip_confirmations: bool,
275
276    // --- Performance Caching ---
277    pub(crate) header_lines_cache: Option<Vec<Line<'static>>>,
278    pub(crate) header_height_cache: hashbrown::HashMap<u16, u16>,
279    pub(crate) queued_inputs_preview_cache: Option<Vec<String>>,
280
281    // --- Terminal Title ---
282    /// Product/app name used in terminal title branding
283    pub(crate) app_name: String,
284    /// Workspace root path for dynamic title generation
285    pub(crate) workspace_root: Option<std::path::PathBuf>,
286    /// Last set terminal title to avoid redundant updates
287    last_terminal_title: Option<String>,
288
289    // --- Streaming State ---
290    /// Track if the assistant is currently streaming a final answer.
291    /// When true, user input should be queued instead of submitted immediately
292    /// to prevent race conditions with turn completion (see GitHub #12569).
293    pub(crate) is_streaming_final_answer: bool,
294}
vtcode_tui/core_tui/session.rs

vtcode_tui/core_tui/
session.rs
