- Introduce built‑in Emacs keymap (`keymap_emacs.toml`) alongside existing Vim layout.
- Add `ui.keymap_profile` and `ui.keymap_path` configuration options; persist profile changes via `:keymap` command.
- Expose `KeymapProfile` enum (Vim, Emacs, Custom) and integrate it throughout state, UI rendering, and help overlay.
- Extend command registry with `keymap.set_vim` and `keymap.set_emacs` to allow profile switching.
- Update help overlay, command specs, and README to reflect new keybindings and profile commands.
- Adjust `Keymap::load` to honor preferred profile, custom paths, and fallback logic.
- Extend event handling to include `MouseEvent` and expose it via a new `Event::Mouse` variant.
- Introduce `LayoutSnapshot` to capture the geometry of UI panels each render cycle.
- Store the latest layout snapshot in `ChatApp` for mouse region lookup.
- Implement mouse click and scroll handling across panels (file tree, thinking, actions, code, model info, chat, input, etc.).
- Add utility functions for region detection, cursor placement from mouse position, and scrolling logic.
- Update UI rendering to populate the layout snapshot with panel rectangles.
- New test suite in `crates/owlen-tui/tests` covering generation orchestration, message variant round‑trip, and background worker status updates.
- Extend `model_picker` to filter models by matching keywords against capabilities as well as provider names.
- Update `state_tests` to assert that suggestion lists are non‑empty instead of checking prefix matches.
- Re‑export `background_worker` from `app::mod.rs` for external consumption.
- Add `MessageState` trait defining UI reaction callbacks for generation lifecycle, model updates, provider status, resize, and tick events.
- Implement `App::handle_message` to route `AppMessage` variants to the provided `MessageState` and determine exit condition.
- Add `handler.rs` module with the trait and dispatch logic; re-export `MessageState` in `app/mod.rs`.
- Extend `ActiveGeneration` with a public `request_id` getter and clean up dead code annotations.
- Implement empty `MessageState` for `ChatApp` to integrate UI handling.
- Add `log` crate dependency for warning messages.
Added `widgets::model_picker` containing the full model picker rendering logic and moved related helper functions there. Updated `ui.rs` to use `render_model_picker` and removed the now‑duplicate model selector implementation. This cleanly separates UI concerns and improves code reuse.
Introduce a `worker` module with `background_worker` that periodically refreshes provider health and emits status updates via the app's message channel. Add `spawn_background_worker` method to `App` for launching the worker as a Tokio task.
Introduce `App` with provider manager, unbounded message channel, and active generation tracking.
Add `AppMessage` enum covering UI events, generation lifecycle (start, chunk, complete, error), model refresh, and provider status updates.
Implement `start_generation` to spawn asynchronous generation tasks, stream results, handle errors, and abort any previous generation.
Expose the new module via `pub mod app` in the crate root.
- Introduce `MIN_MESSAGE_CARD_WIDTH` and use it to switch to compact card layout when terminal width is limited.
- Implement `clip_line_to_width` to truncate UI lines based on available width, preventing overflow in model selector and headers.
- Adjust viewport and card width calculations to respect inner area constraints and handle compact cards.
- Update resize handling and rendering logic to use the new width calculations and clipping functionality.
- Rename “PANEL NAVIGATION” to “PANEL FOCUS” and document Ctrl/Alt + 1‑5 panel focus shortcuts.
- Consolidate navigation, scrolling, and layout controls into clearer sections.
- Add “VISIBLE CUES”, “ACCESSIBILITY”, and “LAYOUT CONTROLS” headings with high‑contrast and screen‑reader tips.
- Update editing, sending, and normal‑mode shortcuts, including new Cmd‑P palette and Ctrl/Alt + 5 focus shortcut.
- Extend visual‑mode help with focus shortcuts for Thinking/Agent panels.
- Refine provider/model picker, theme browser, command palette, repo search, and symbol search descriptions.
- Include “TIPS” section highlighting slash commands and focus behavior.
- Implement `focus_panel` to programmatically switch between panels with validation.
- Add key bindings for `Ctrl+1`‑`Ctrl+5` to focus Files, Chat, Code, Thinking, and Input panels respectively.
- Update pane headers to display focus shortcuts alongside panel labels.
- Extend UI hint strings across panels to include the new focus shortcuts.
- Refactor highlight style handling and introduce a dedicated `highlight_style`.
- Adjust default theme colors to use explicit RGB values for better consistency.
Implemented full markdown table support:
- Parse tables with headers, rows, and alignment.
- Render tables as a grid when width permits, falling back to a stacked layout for narrow widths.
- Added helper structs (`ParsedTable`, `TableAlignment`) and functions for splitting rows, parsing alignments, column width constraints, cell alignment, and wrapping.
- Integrated table rendering into `render_markdown_lines`.
- Added unit tests for grid rendering and narrow fallback behavior.
- Introduce new `owlen-markdown` crate that converts Markdown strings to `ratatui::Text` with headings, lists, bold/italic, and inline code.
- Add `render_markdown` config option (default true) and expose it via `app.render_markdown_enabled()`.
- Implement `:markdown [on|off]` command to toggle markdown rendering.
- Update help overlay to document the new markdown toggle.
- Adjust UI rendering to conditionally apply markdown styling based on the markdown flag and code mode.
- Wire the new crate into `owlen-tui` Cargo.toml.
- Set `default_syntax_highlighting` to true in core config.
- Added language‑aware syntax selector (`select_syntax_for_language`) and highlighter builder (`build_highlighter_for_language`) with unit test.
- Integrated new highlight module into `ChatApp`, using `UnicodeSegmentation` for proper grapheme handling.
- Simplified `should_highlight_code` to always return true and removed extended‑color detection logic.
- Reworked code rendering to use `inline_code_spans_from_text` and `wrap_highlight_segments` for accurate line wrapping and styling.
- Cleaned up removed legacy keyword/comment parsing and extended‑color detection code.
- Introduce `message_border_style` to render message borders with a dimmed version of the role color.
- Add `dim_color` and `color_to_rgb` helpers for color manipulation.
- Update role styling to use `theme.mode_command` for system messages.
- Adjust card rendering functions to accept role and apply the new border style.
- Add `seen_meta` set and `push_meta` helper to avoid duplicate entries when building model metadata strings.
- Extend metadata handling to include context length fallback, architecture/family information, embedding length, size formatting, and quantization details.
- Introduce `populate_model_details_cache_from_session` to load model details from the controller, with a fallback to cached details.
- Update `refresh_models` to use the new cache‑population method instead of manually clearing the cache.
- Add robust size calculations with configurable width bounds and height clamping.
- Guard against zero‑size areas and empty model/theme lists.
- Render popups centered with dynamic positioning, preventing negative Y coordinates.
- Introduce multi‑line list items, badges, and metadata display for models.
- Add ellipsis helper for long descriptions and separate title/metadata generation.
- Refactor theme selector to show current theme, built‑in/custom indicators, and a centered footer.
- Update highlight styles and selection handling for both popups.
- Limit popup width to a configurable range (40‑80 characters) and ensure a minimum width of 1.
- Preserve original width when the terminal is narrower than the minimum.
- Clamp the y coordinate to the top of the area to avoid negative positioning.
- Introduce `system_status_message` helper to determine the message shown in the system/status pane.
- Calculate wrapped line count based on available width, clamp visible rows to 1–5, and set the layout constraint dynamically.
- Update `render_system_output` to accept the pre‑computed message, choose color based on error prefix, and render each line individually, defaulting to “Ready” when empty.
- Adjust UI layout to use the new dynamic constraint for the system/status section.
- Map git badges and cleanliness states to specific `Color` values and modifiers.
- Apply these colors to file icons, filenames, and markers in the UI.
- Propagate the most relevant dirty badge from child nodes up to parent directories.
- Extend the help overlay with a “GIT COLORS” section describing the new color legend.
- Update help UI to show “Ctrl+↑/↓ → resize chat/thinking split”.
- Introduce `ensure_ratio_bounds` and `nudge_ratio` on `LayoutNode` to clamp and adjust split ratios.
- Ensure vertical split favors the thinking panel when it becomes focused.
- Add `adjust_vertical_split` method in `ChatApp` and handle Ctrl+↑/↓ in normal mode to modify the split and update status messages.
- Update help UI to show “Ctrl+←/→ → resize files panel”.
- Change `set_file_panel_width` to return the clamped width.
- Implement Ctrl+←/→ handling in keyboard input to adjust the files panel width, update status messages, and respect panel collapse state.
- Introduced a new “HELP & QUICK COMMANDS” section with bold header and shortcuts for toggling the help overlay and opening the files panel.
- Updated command help text to “Open the help overlay”.
- Extended onboarding and tutorial status lines to display the help shortcut.
- Modified help command handling to set the status to “Help” and clear errors.
- Introduce “Ctrl+C twice” shortcut for quitting the application and display corresponding help line.
- Rename and clarify session‑related commands (`:session save`) and add short aliases (`:w[!]`, `:q[!]`, `:wq[!]`) with updated help entries.
- Adjust quit help text to remove `:q, :quit` redundancy and replace with the new quick‑exit hint.
- Update UI key hint to show only “Esc” for cancel actions.
- Implement double‑Ctrl+C detection in `ChatApp` using `DOUBLE_CTRL_C_WINDOW`, track `last_ctrl_c`, reset on other keys, and show status messages prompting the second press.
- Minor wording tweaks in help dialogs and README to reflect the new command syntax and quick‑exit behavior.
- Updated command specs: added `w`, `write`, `wq`, `x`, and `session save` with proper descriptions.
- Introduced `SaveStatus` enum and helper methods for path display and buffer labeling.
- Implemented `update_paths` in `Workspace` to keep title in sync with file paths.
- Added comprehensive `save_active_code_buffer` and enhanced `close_active_code_buffer` logic, including force‑close via `!`.
- Parsed force flag from commands (e.g., `:q!`) and routed commands to new save/close workflows.
- Integrated session save subcommand with optional description generation.
- Adjust layout constraint from 5 to 4 lines to match 2 lines of content plus borders.
- Refactor file focus key handling to toggle the file panel state and set status messages (“Files panel shown” / “Files panel hidden”) instead of always expanding and using a static status.
- Render the app title with version as the block title instead of a separate header widget.
- Compute `content_area` via `main_block.inner` and use it for file panel, main area, model info panel, and toast rendering.
- Remove header constraints and the `render_header` function, simplifying the layout.
- Add early exit when `content_area` has zero width or height to avoid rendering errors.
Add `APP_VERSION` constant derived from `CARGO_PKG_VERSION` and update the header rendering to display the version (e.g., “🦉 OWLEN v1.2.3 – AI Assistant”).
Introduce `McpCommand` enum and handlers in `owlen-cli` to manage MCP server registrations, including adding, listing, and removing servers across configuration scopes. Add scoped configuration support (`ScopedMcpServer`, `McpConfigScope`) and OAuth token handling in core config, alongside runtime refresh of MCP servers. Implement toast notifications in the TUI (`render_toasts`, `Toast`, `ToastLevel`) and integrate async handling for session events. Update config loading, validation, and schema versioning to accommodate new MCP scopes and resources. Add `httpmock` as a dev dependency for testing.
- Introduce `IconMode` in core config (default Auto) and bump schema version to 1.4.0.
- Add `FileIconSet`, `IconDetection`, and `FileIconResolver` to resolve per‑file icons with configurable fallbacks and environment variable `OWLEN_TUI_ICONS`.
- Export resolver types from `owlen-tui::state::file_icons`.
- Extend `ChatApp` with `file_icons` field, initialize it from config, and expose via `file_icons()` accessor.
- Append system status line showing selected icon set and detection source.
- Implement breadcrumb construction (`repo > path > file`) and display in code pane headers.
- Render icons in file tree, handle unsaved file markers, hidden files, and Git decorations with proper styling.
- Add helper `collect_unsaved_relative_paths` and tree line computation for visual guides.
- Provide `Workspace::panes()` iterator for unsaved tracking.
- Update UI imports and tests to cover new breadcrumb feature.
- Export `PaletteGroup` and `PaletteSuggestion` to represent suggestion metadata.
- Implement command history with deduplication, capacity limit, and recent‑command suggestions.
- Enhance dynamic suggestion logic to include history, commands, models, and providers with fuzzy ranking.
- Add UI rendering for grouped suggestions, header with command palette label, and footer instructions.
- Update help text with new shortcuts (Ctrl+P, layout save/load) and expose new agent/layout commands.
Add `focus_beacon_span`, `panel_title_spans`, `panel_hint_style`, and `panel_border_style` utilities to centralize panel header, hint, border, and beacon rendering. Integrate these helpers across all UI panels (files, chat, thinking, agent actions, input, status bar) and update help text. Extend `Theme` with new color fields for beacons, pane headers, and hint text, providing defaults for all built‑in themes. Include comprehensive unit tests for the new styling functions.
Introduce `FileTreeState` for managing a navigable file hierarchy with Git decorations, filtering, and cursor/scroll handling.
Add `RepoSearchState` and related types to support asynchronous ripgrep‑backed repository searches, including result aggregation, pagination, and UI interaction.
- Introduce `RoleLabelDisplay` enum (inline, above, none) and integrate it into UI rendering and message formatting.
- Replace `show_role_labels` boolean with `role_label_mode` across config, formatter, session, and TUI components.
- Add `syntax_highlighting` boolean to UI settings with default `false` and support in message rendering.
- Update configuration schema version to 1.3.0 and provide deserialization handling for legacy boolean values.
- Extend theme definitions with code block styling fields (background, border, text, keyword, string, comment) and default values in `Theme`.
- Adjust related modules (`formatting.rs`, `ui.rs`, `session.rs`, `chat_app.rs`) to use the new settings and theme fields.
- Added `show_cursor_outside_insert` (default false) to `UiSettings` and synced it from config.
- Cursor rendering now follows `cursor_should_be_visible`, allowing visibility outside insert mode based on the new setting.
- Replaced `textwrap::wrap` with `wrap_unicode`, which uses Unicode break properties for proper CJK and emoji handling.
- Added `grayscale-high-contrast.toml` theme, registered it in theme loading, and updated README and tests.
- Add placeholder span showing shortcuts (i:Insert, m:Model, ?:Help, : Command) in the UI footer.
- Insert help section describing Enter key behavior in normal and insert modes.
- Extend F1 help shortcut to also trigger on “?” key (with no or Shift modifier).
