90c8b43267
Implement state, action, and view layers for both list screens: - Issue List: keyset pagination, snapshot fence, filter DSL, label aggregation - MR List: mirrors Issue pattern with draft/reviewer/target branch filters - Migration 027: covering indexes for TUI list screen queries - Updated Msg types to use typed Page structs instead of raw Vec<Row> - 303 tests passing, clippy clean Beads: bd-3ei1, bd-2kr0, bd-3pm2
368 lines
13 KiB
Rust
368 lines
13 KiB
Rust
//! Model trait impl and key dispatch for LoreApp.
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use chrono::TimeDelta;
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use ftui::{Cmd, Event, Frame, KeyCode, KeyEvent, Model, Modifiers};
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use crate::crash_context::CrashEvent;
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use crate::message::{InputMode, Msg, Screen};
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use crate::state::LoadState;
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use crate::task_supervisor::TaskKey;
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use super::LoreApp;
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/// Timeout for the g-prefix key sequence.
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const GO_PREFIX_TIMEOUT: TimeDelta = TimeDelta::milliseconds(500);
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impl LoreApp {
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// -----------------------------------------------------------------------
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// Key dispatch
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// -----------------------------------------------------------------------
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/// Normalize terminal key variants for cross-terminal consistency.
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fn normalize_key(key: &mut KeyEvent) {
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// BackTab -> Shift+Tab canonical form.
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if key.code == KeyCode::BackTab {
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key.code = KeyCode::Tab;
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key.modifiers |= Modifiers::SHIFT;
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}
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}
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/// 5-stage key dispatch pipeline.
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///
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/// Returns the Cmd to execute (Quit, None, or a task command).
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pub(crate) fn interpret_key(&mut self, mut key: KeyEvent) -> Cmd<Msg> {
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Self::normalize_key(&mut key);
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let screen = self.navigation.current().clone();
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// Record key press in crash context.
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self.crash_context.push(CrashEvent::KeyPress {
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key: format!("{:?}", key.code),
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mode: format!("{:?}", self.input_mode),
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screen: screen.label().to_string(),
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});
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// --- Stage 1: Quit check ---
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// Ctrl+C always quits regardless of mode.
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if key.code == KeyCode::Char('c') && key.modifiers.contains(Modifiers::CTRL) {
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return Cmd::quit();
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}
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// --- Stage 2: InputMode routing ---
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match &self.input_mode {
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InputMode::Text => {
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return self.handle_text_mode_key(&key, &screen);
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}
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InputMode::Palette => {
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return self.handle_palette_mode_key(&key, &screen);
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}
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InputMode::GoPrefix { started_at } => {
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let elapsed = self.clock.now().signed_duration_since(*started_at);
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if elapsed > GO_PREFIX_TIMEOUT {
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// Timeout expired — cancel prefix and re-process as normal.
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self.input_mode = InputMode::Normal;
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} else {
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return self.handle_go_prefix_key(&key, &screen);
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}
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}
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InputMode::Normal => {}
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}
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// --- Stage 3: Global shortcuts (Normal mode) ---
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// 'q' quits.
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if key.code == KeyCode::Char('q') && key.modifiers == Modifiers::NONE {
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return Cmd::quit();
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}
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// 'g' starts prefix sequence.
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if self
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.command_registry
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.is_sequence_starter(&key.code, &key.modifiers)
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{
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self.input_mode = InputMode::GoPrefix {
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started_at: self.clock.now(),
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};
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return Cmd::none();
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}
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// Registry-based single-key lookup.
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if let Some(cmd_def) =
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self.command_registry
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.lookup_key(&key.code, &key.modifiers, &screen, &self.input_mode)
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{
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return self.execute_command(cmd_def.id, &screen);
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}
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// --- Stage 4: Screen-local keys ---
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// Delegated to AppState::interpret_screen_key in future phases.
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// --- Stage 5: Fallback (unhandled) ---
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Cmd::none()
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}
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/// Handle keys in Text input mode.
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///
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/// Only Esc and Ctrl+P pass through; everything else is consumed by
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/// the focused text widget (handled in future phases).
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fn handle_text_mode_key(&mut self, key: &KeyEvent, screen: &Screen) -> Cmd<Msg> {
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// Esc blurs the text input.
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if key.code == KeyCode::Escape {
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self.state.blur_text_focus();
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self.input_mode = InputMode::Normal;
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return Cmd::none();
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}
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// Ctrl+P opens palette even in text mode.
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if let Some(cmd_def) =
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self.command_registry
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.lookup_key(&key.code, &key.modifiers, screen, &InputMode::Text)
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{
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return self.execute_command(cmd_def.id, screen);
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}
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// All other keys consumed by text widget (future).
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Cmd::none()
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}
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/// Handle keys in Palette mode.
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fn handle_palette_mode_key(&mut self, key: &KeyEvent, _screen: &Screen) -> Cmd<Msg> {
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if key.code == KeyCode::Escape {
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self.input_mode = InputMode::Normal;
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return Cmd::none();
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}
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// Palette key dispatch will be expanded in the palette widget phase.
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Cmd::none()
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}
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/// Handle the second key of a g-prefix sequence.
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fn handle_go_prefix_key(&mut self, key: &KeyEvent, screen: &Screen) -> Cmd<Msg> {
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self.input_mode = InputMode::Normal;
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if let Some(cmd_def) = self.command_registry.complete_sequence(
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&KeyCode::Char('g'),
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&Modifiers::NONE,
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&key.code,
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&key.modifiers,
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screen,
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) {
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return self.execute_command(cmd_def.id, screen);
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}
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// Invalid second key — cancel prefix silently.
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Cmd::none()
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}
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/// Execute a command by ID.
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fn execute_command(&mut self, id: &str, _screen: &Screen) -> Cmd<Msg> {
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match id {
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"quit" => Cmd::quit(),
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"go_back" => {
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self.navigation.pop();
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Cmd::none()
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}
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"show_help" => {
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self.state.show_help = !self.state.show_help;
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Cmd::none()
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}
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"command_palette" => {
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self.input_mode = InputMode::Palette;
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self.state.command_palette.query_focused = true;
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Cmd::none()
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}
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"open_in_browser" => {
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// Will dispatch OpenInBrowser msg in future phase.
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Cmd::none()
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}
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"show_cli" => {
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// Will show CLI equivalent in future phase.
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Cmd::none()
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}
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"go_home" => self.navigate_to(Screen::Dashboard),
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"go_issues" => self.navigate_to(Screen::IssueList),
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"go_mrs" => self.navigate_to(Screen::MrList),
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"go_search" => self.navigate_to(Screen::Search),
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"go_timeline" => self.navigate_to(Screen::Timeline),
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"go_who" => self.navigate_to(Screen::Who),
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"go_sync" => self.navigate_to(Screen::Sync),
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"jump_back" => {
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self.navigation.jump_back();
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Cmd::none()
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}
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"jump_forward" => {
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self.navigation.jump_forward();
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Cmd::none()
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}
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"move_down" | "move_up" | "select_item" | "focus_filter" | "scroll_to_top" => {
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// Screen-specific actions — delegated in future phases.
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Cmd::none()
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}
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_ => Cmd::none(),
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}
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}
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// -----------------------------------------------------------------------
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// Navigation helpers
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// -----------------------------------------------------------------------
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/// Navigate to a screen, pushing the nav stack and starting a data load.
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fn navigate_to(&mut self, screen: Screen) -> Cmd<Msg> {
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let screen_label = screen.label().to_string();
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let current_label = self.navigation.current().label().to_string();
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self.crash_context.push(CrashEvent::StateTransition {
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from: current_label,
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to: screen_label,
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});
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self.navigation.push(screen.clone());
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// First visit → full-screen spinner; revisit → corner spinner over stale data.
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let load_state = if self.state.load_state.was_visited(&screen) {
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LoadState::Refreshing
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} else {
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LoadState::LoadingInitial
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};
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self.state.set_loading(screen.clone(), load_state);
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// Spawn supervised task for data loading (placeholder — actual DB
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// query dispatch comes in Phase 2 screen implementations).
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let _handle = self.supervisor.submit(TaskKey::LoadScreen(screen));
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Cmd::none()
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}
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// -----------------------------------------------------------------------
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// Message dispatch (non-key)
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// -----------------------------------------------------------------------
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/// Handle non-key messages.
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pub(crate) fn handle_msg(&mut self, msg: Msg) -> Cmd<Msg> {
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// Record in crash context.
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self.crash_context.push(CrashEvent::MsgDispatched {
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msg_name: format!("{msg:?}")
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.split('(')
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.next()
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.unwrap_or("?")
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.to_string(),
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screen: self.navigation.current().label().to_string(),
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});
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match msg {
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Msg::Quit => Cmd::quit(),
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// --- Navigation ---
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Msg::NavigateTo(screen) => self.navigate_to(screen),
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Msg::GoBack => {
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self.navigation.pop();
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Cmd::none()
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}
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Msg::GoForward => {
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self.navigation.go_forward();
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Cmd::none()
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}
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Msg::GoHome => self.navigate_to(Screen::Dashboard),
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Msg::JumpBack(_) => {
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self.navigation.jump_back();
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Cmd::none()
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}
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Msg::JumpForward(_) => {
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self.navigation.jump_forward();
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Cmd::none()
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}
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// --- Error ---
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Msg::Error(err) => {
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self.state.set_error(err.to_string());
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Cmd::none()
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}
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// --- Help / UI ---
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Msg::ShowHelp => {
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self.state.show_help = !self.state.show_help;
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Cmd::none()
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}
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Msg::BlurTextInput => {
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self.state.blur_text_focus();
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self.input_mode = InputMode::Normal;
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Cmd::none()
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}
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// --- Terminal ---
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Msg::Resize { width, height } => {
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self.state.terminal_size = (width, height);
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Cmd::none()
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}
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Msg::Tick => Cmd::none(),
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// --- Loaded results (stale guard) ---
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Msg::IssueListLoaded { generation, page } => {
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if self
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.supervisor
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.is_current(&TaskKey::LoadScreen(Screen::IssueList), generation)
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{
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self.state.issue_list.apply_page(page);
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self.state.set_loading(Screen::IssueList, LoadState::Idle);
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self.supervisor
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.complete(&TaskKey::LoadScreen(Screen::IssueList), generation);
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}
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Cmd::none()
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}
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Msg::MrListLoaded { generation, page } => {
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if self
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.supervisor
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.is_current(&TaskKey::LoadScreen(Screen::MrList), generation)
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{
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self.state.mr_list.apply_page(page);
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self.state.set_loading(Screen::MrList, LoadState::Idle);
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self.supervisor
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.complete(&TaskKey::LoadScreen(Screen::MrList), generation);
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}
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Cmd::none()
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}
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Msg::DashboardLoaded { generation, data } => {
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if self
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.supervisor
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.is_current(&TaskKey::LoadScreen(Screen::Dashboard), generation)
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{
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self.state.dashboard.update(*data);
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self.state.set_loading(Screen::Dashboard, LoadState::Idle);
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self.supervisor
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.complete(&TaskKey::LoadScreen(Screen::Dashboard), generation);
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}
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Cmd::none()
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}
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// All other message variants: no-op for now.
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// Future phases will fill these in as screens are implemented.
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_ => Cmd::none(),
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}
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}
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}
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impl Model for LoreApp {
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type Message = Msg;
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fn init(&mut self) -> Cmd<Self::Message> {
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// Install crash context panic hook.
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crate::crash_context::CrashContext::install_panic_hook(&self.crash_context);
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crate::crash_context::CrashContext::prune_crash_files();
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// Navigate to dashboard (will trigger data load in future phase).
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Cmd::none()
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}
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fn update(&mut self, msg: Self::Message) -> Cmd<Self::Message> {
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// Route raw key events through the 5-stage pipeline.
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if let Msg::RawEvent(Event::Key(key)) = msg {
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return self.interpret_key(key);
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}
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// Everything else goes through message dispatch.
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self.handle_msg(msg)
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}
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fn view(&self, frame: &mut Frame) {
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crate::view::render_screen(frame, self);
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}
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}
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