vim.rs

   1//! Vim support for Zed.
   2
   3#[cfg(test)]
   4mod test;
   5
   6mod change_list;
   7mod command;
   8mod digraph;
   9mod helix;
  10mod indent;
  11mod insert;
  12mod mode_indicator;
  13mod motion;
  14mod normal;
  15mod object;
  16mod replace;
  17mod rewrap;
  18mod state;
  19mod surrounds;
  20mod visual;
  21
  22use crate::normal::paste::Paste as VimPaste;
  23use collections::HashMap;
  24use editor::{
  25    Anchor, Bias, Editor, EditorEvent, EditorSettings, HideMouseCursorOrigin, MultiBufferOffset,
  26    SelectionEffects,
  27    actions::Paste,
  28    display_map::ToDisplayPoint,
  29    movement::{self, FindRange},
  30};
  31use gpui::{
  32    Action, App, AppContext, Axis, Context, Entity, EventEmitter, KeyContext, KeystrokeEvent,
  33    Render, Subscription, Task, WeakEntity, Window, actions,
  34};
  35use insert::{NormalBefore, TemporaryNormal};
  36use language::{
  37    CharKind, CharScopeContext, CursorShape, Point, Selection, SelectionGoal, TransactionId,
  38};
  39pub use mode_indicator::ModeIndicator;
  40use motion::Motion;
  41use multi_buffer::ToPoint as _;
  42use normal::search::SearchSubmit;
  43use object::Object;
  44use schemars::JsonSchema;
  45use search::BufferSearchBar;
  46use serde::Deserialize;
  47use settings::RegisterSetting;
  48pub use settings::{
  49    ModeContent, Settings, SettingsStore, UseSystemClipboard, update_settings_file,
  50};
  51use state::{Mode, Operator, RecordedSelection, SearchState, VimGlobals};
  52use std::{mem, ops::Range, sync::Arc};
  53use surrounds::SurroundsType;
  54use theme::ThemeSettings;
  55use ui::{IntoElement, SharedString, px};
  56use vim_mode_setting::HelixModeSetting;
  57use vim_mode_setting::VimModeSetting;
  58use workspace::{self, Pane, Workspace};
  59
  60use crate::{
  61    normal::{GoToPreviousTab, GoToTab},
  62    state::ReplayableAction,
  63};
  64
  65/// Number is used to manage vim's count. Pushing a digit
  66/// multiplies the current value by 10 and adds the digit.
  67#[derive(Clone, Deserialize, JsonSchema, PartialEq, Action)]
  68#[action(namespace = vim)]
  69struct Number(usize);
  70
  71#[derive(Clone, Deserialize, JsonSchema, PartialEq, Action)]
  72#[action(namespace = vim)]
  73struct SelectRegister(String);
  74
  75#[derive(Clone, Deserialize, JsonSchema, PartialEq, Action)]
  76#[action(namespace = vim)]
  77#[serde(deny_unknown_fields)]
  78struct PushObject {
  79    around: bool,
  80}
  81
  82#[derive(Clone, Deserialize, JsonSchema, PartialEq, Action)]
  83#[action(namespace = vim)]
  84#[serde(deny_unknown_fields)]
  85struct PushFindForward {
  86    before: bool,
  87    multiline: bool,
  88}
  89
  90#[derive(Clone, Deserialize, JsonSchema, PartialEq, Action)]
  91#[action(namespace = vim)]
  92#[serde(deny_unknown_fields)]
  93struct PushFindBackward {
  94    after: bool,
  95    multiline: bool,
  96}
  97
  98#[derive(Clone, Deserialize, JsonSchema, PartialEq, Action)]
  99#[action(namespace = vim)]
 100#[serde(deny_unknown_fields)]
 101/// Selects the next object.
 102struct PushHelixNext {
 103    around: bool,
 104}
 105
 106#[derive(Clone, Deserialize, JsonSchema, PartialEq, Action)]
 107#[action(namespace = vim)]
 108#[serde(deny_unknown_fields)]
 109/// Selects the previous object.
 110struct PushHelixPrevious {
 111    around: bool,
 112}
 113
 114#[derive(Clone, Deserialize, JsonSchema, PartialEq, Action)]
 115#[action(namespace = vim)]
 116#[serde(deny_unknown_fields)]
 117struct PushSneak {
 118    first_char: Option<char>,
 119}
 120
 121#[derive(Clone, Deserialize, JsonSchema, PartialEq, Action)]
 122#[action(namespace = vim)]
 123#[serde(deny_unknown_fields)]
 124struct PushSneakBackward {
 125    first_char: Option<char>,
 126}
 127
 128#[derive(Clone, Deserialize, JsonSchema, PartialEq, Action)]
 129#[action(namespace = vim)]
 130#[serde(deny_unknown_fields)]
 131struct PushAddSurrounds;
 132
 133#[derive(Clone, Deserialize, JsonSchema, PartialEq, Action)]
 134#[action(namespace = vim)]
 135#[serde(deny_unknown_fields)]
 136struct PushChangeSurrounds {
 137    target: Option<Object>,
 138}
 139
 140#[derive(Clone, Deserialize, JsonSchema, PartialEq, Action)]
 141#[action(namespace = vim)]
 142#[serde(deny_unknown_fields)]
 143struct PushJump {
 144    line: bool,
 145}
 146
 147#[derive(Clone, Deserialize, JsonSchema, PartialEq, Action)]
 148#[action(namespace = vim)]
 149#[serde(deny_unknown_fields)]
 150struct PushDigraph {
 151    first_char: Option<char>,
 152}
 153
 154#[derive(Clone, Deserialize, JsonSchema, PartialEq, Action)]
 155#[action(namespace = vim)]
 156#[serde(deny_unknown_fields)]
 157struct PushLiteral {
 158    prefix: Option<String>,
 159}
 160
 161actions!(
 162    vim,
 163    [
 164        /// Switches to normal mode.
 165        SwitchToNormalMode,
 166        /// Switches to insert mode.
 167        SwitchToInsertMode,
 168        /// Switches to replace mode.
 169        SwitchToReplaceMode,
 170        /// Switches to visual mode.
 171        SwitchToVisualMode,
 172        /// Switches to visual line mode.
 173        SwitchToVisualLineMode,
 174        /// Switches to visual block mode.
 175        SwitchToVisualBlockMode,
 176        /// Switches to Helix-style normal mode.
 177        SwitchToHelixNormalMode,
 178        /// Clears any pending operators.
 179        ClearOperators,
 180        /// Clears the exchange register.
 181        ClearExchange,
 182        /// Inserts a tab character.
 183        Tab,
 184        /// Inserts a newline.
 185        Enter,
 186        /// Selects inner text object.
 187        InnerObject,
 188        /// Maximizes the current pane.
 189        MaximizePane,
 190        /// Resets all pane sizes to default.
 191        ResetPaneSizes,
 192        /// Resizes the pane to the right.
 193        ResizePaneRight,
 194        /// Resizes the pane to the left.
 195        ResizePaneLeft,
 196        /// Resizes the pane upward.
 197        ResizePaneUp,
 198        /// Resizes the pane downward.
 199        ResizePaneDown,
 200        /// Starts a change operation.
 201        PushChange,
 202        /// Starts a delete operation.
 203        PushDelete,
 204        /// Exchanges text regions.
 205        Exchange,
 206        /// Starts a yank operation.
 207        PushYank,
 208        /// Starts a replace operation.
 209        PushReplace,
 210        /// Deletes surrounding characters.
 211        PushDeleteSurrounds,
 212        /// Sets a mark at the current position.
 213        PushMark,
 214        /// Toggles the marks view.
 215        ToggleMarksView,
 216        /// Starts a forced motion.
 217        PushForcedMotion,
 218        /// Starts an indent operation.
 219        PushIndent,
 220        /// Starts an outdent operation.
 221        PushOutdent,
 222        /// Starts an auto-indent operation.
 223        PushAutoIndent,
 224        /// Starts a rewrap operation.
 225        PushRewrap,
 226        /// Starts a shell command operation.
 227        PushShellCommand,
 228        /// Converts to lowercase.
 229        PushLowercase,
 230        /// Converts to uppercase.
 231        PushUppercase,
 232        /// Toggles case.
 233        PushOppositeCase,
 234        /// Applies ROT13 encoding.
 235        PushRot13,
 236        /// Applies ROT47 encoding.
 237        PushRot47,
 238        /// Toggles the registers view.
 239        ToggleRegistersView,
 240        /// Selects a register.
 241        PushRegister,
 242        /// Starts recording to a register.
 243        PushRecordRegister,
 244        /// Replays a register.
 245        PushReplayRegister,
 246        /// Replaces with register contents.
 247        PushReplaceWithRegister,
 248        /// Toggles comments.
 249        PushToggleComments,
 250        /// Selects (count) next menu item
 251        MenuSelectNext,
 252        /// Selects (count) previous menu item
 253        MenuSelectPrevious,
 254        /// Clears count or toggles project panel focus
 255        ToggleProjectPanelFocus,
 256        /// Starts a match operation.
 257        PushHelixMatch,
 258        /// Adds surrounding characters in Helix mode.
 259        PushHelixSurroundAdd,
 260        /// Replaces surrounding characters in Helix mode.
 261        PushHelixSurroundReplace,
 262        /// Deletes surrounding characters in Helix mode.
 263        PushHelixSurroundDelete,
 264    ]
 265);
 266
 267// in the workspace namespace so it's not filtered out when vim is disabled.
 268actions!(
 269    workspace,
 270    [
 271        /// Toggles Vim mode on or off.
 272        ToggleVimMode,
 273        /// Toggles Helix mode on or off.
 274        ToggleHelixMode,
 275    ]
 276);
 277
 278/// Initializes the `vim` crate.
 279pub fn init(cx: &mut App) {
 280    VimGlobals::register(cx);
 281
 282    cx.observe_new(Vim::register).detach();
 283
 284    cx.observe_new(|workspace: &mut Workspace, _, _| {
 285        workspace.register_action(|workspace, _: &ToggleVimMode, _, cx| {
 286            let fs = workspace.app_state().fs.clone();
 287            let currently_enabled = VimModeSetting::get_global(cx).0;
 288            update_settings_file(fs, cx, move |setting, _| {
 289                setting.vim_mode = Some(!currently_enabled);
 290                if let Some(helix_mode) = &mut setting.helix_mode {
 291                    *helix_mode = false;
 292                }
 293            })
 294        });
 295
 296        workspace.register_action(|workspace, _: &ToggleHelixMode, _, cx| {
 297            let fs = workspace.app_state().fs.clone();
 298            let currently_enabled = HelixModeSetting::get_global(cx).0;
 299            update_settings_file(fs, cx, move |setting, _| {
 300                setting.helix_mode = Some(!currently_enabled);
 301                if let Some(vim_mode) = &mut setting.vim_mode {
 302                    *vim_mode = false;
 303                }
 304            })
 305        });
 306
 307        workspace.register_action(|_, _: &MenuSelectNext, window, cx| {
 308            let count = Vim::take_count(cx).unwrap_or(1);
 309
 310            for _ in 0..count {
 311                window.dispatch_action(menu::SelectNext.boxed_clone(), cx);
 312            }
 313        });
 314
 315        workspace.register_action(|_, _: &MenuSelectPrevious, window, cx| {
 316            let count = Vim::take_count(cx).unwrap_or(1);
 317
 318            for _ in 0..count {
 319                window.dispatch_action(menu::SelectPrevious.boxed_clone(), cx);
 320            }
 321        });
 322
 323        workspace.register_action(|_, _: &ToggleProjectPanelFocus, window, cx| {
 324            if Vim::take_count(cx).is_none() {
 325                window.dispatch_action(zed_actions::project_panel::ToggleFocus.boxed_clone(), cx);
 326            }
 327        });
 328
 329        workspace.register_action(|workspace, n: &Number, window, cx| {
 330            let vim = workspace
 331                .focused_pane(window, cx)
 332                .read(cx)
 333                .active_item()
 334                .and_then(|item| item.act_as::<Editor>(cx))
 335                .and_then(|editor| editor.read(cx).addon::<VimAddon>().cloned());
 336            if let Some(vim) = vim {
 337                let digit = n.0;
 338                vim.entity.update(cx, |_, cx| {
 339                    cx.defer_in(window, move |vim, window, cx| {
 340                        vim.push_count_digit(digit, window, cx)
 341                    })
 342                });
 343            } else {
 344                let count = Vim::globals(cx).pre_count.unwrap_or(0);
 345                Vim::globals(cx).pre_count = Some(
 346                    count
 347                        .checked_mul(10)
 348                        .and_then(|c| c.checked_add(n.0))
 349                        .unwrap_or(count),
 350                );
 351            };
 352        });
 353
 354        workspace.register_action(|_, _: &zed_actions::vim::OpenDefaultKeymap, _, cx| {
 355            cx.emit(workspace::Event::OpenBundledFile {
 356                text: settings::vim_keymap(),
 357                title: "Default Vim Bindings",
 358                language: "JSON",
 359            });
 360        });
 361
 362        workspace.register_action(|workspace, _: &ResetPaneSizes, _, cx| {
 363            workspace.reset_pane_sizes(cx);
 364        });
 365
 366        workspace.register_action(|workspace, _: &MaximizePane, window, cx| {
 367            let pane = workspace.active_pane();
 368            let Some(size) = workspace.bounding_box_for_pane(pane) else {
 369                return;
 370            };
 371
 372            let theme = ThemeSettings::get_global(cx);
 373            let height = theme.buffer_font_size(cx) * theme.buffer_line_height.value();
 374
 375            let desired_size = if let Some(count) = Vim::take_count(cx) {
 376                height * count
 377            } else {
 378                px(10000.)
 379            };
 380            workspace.resize_pane(Axis::Vertical, desired_size - size.size.height, window, cx)
 381        });
 382
 383        workspace.register_action(|workspace, _: &ResizePaneRight, window, cx| {
 384            let count = Vim::take_count(cx).unwrap_or(1) as f32;
 385            Vim::take_forced_motion(cx);
 386            let theme = ThemeSettings::get_global(cx);
 387            let font_id = window.text_system().resolve_font(&theme.buffer_font);
 388            let Ok(width) = window
 389                .text_system()
 390                .advance(font_id, theme.buffer_font_size(cx), 'm')
 391            else {
 392                return;
 393            };
 394            workspace.resize_pane(Axis::Horizontal, width.width * count, window, cx);
 395        });
 396
 397        workspace.register_action(|workspace, _: &ResizePaneLeft, window, cx| {
 398            let count = Vim::take_count(cx).unwrap_or(1) as f32;
 399            Vim::take_forced_motion(cx);
 400            let theme = ThemeSettings::get_global(cx);
 401            let font_id = window.text_system().resolve_font(&theme.buffer_font);
 402            let Ok(width) = window
 403                .text_system()
 404                .advance(font_id, theme.buffer_font_size(cx), 'm')
 405            else {
 406                return;
 407            };
 408            workspace.resize_pane(Axis::Horizontal, -width.width * count, window, cx);
 409        });
 410
 411        workspace.register_action(|workspace, _: &ResizePaneUp, window, cx| {
 412            let count = Vim::take_count(cx).unwrap_or(1) as f32;
 413            Vim::take_forced_motion(cx);
 414            let theme = ThemeSettings::get_global(cx);
 415            let height = theme.buffer_font_size(cx) * theme.buffer_line_height.value();
 416            workspace.resize_pane(Axis::Vertical, height * count, window, cx);
 417        });
 418
 419        workspace.register_action(|workspace, _: &ResizePaneDown, window, cx| {
 420            let count = Vim::take_count(cx).unwrap_or(1) as f32;
 421            Vim::take_forced_motion(cx);
 422            let theme = ThemeSettings::get_global(cx);
 423            let height = theme.buffer_font_size(cx) * theme.buffer_line_height.value();
 424            workspace.resize_pane(Axis::Vertical, -height * count, window, cx);
 425        });
 426
 427        workspace.register_action(|workspace, _: &SearchSubmit, window, cx| {
 428            let vim = workspace
 429                .focused_pane(window, cx)
 430                .read(cx)
 431                .active_item()
 432                .and_then(|item| item.act_as::<Editor>(cx))
 433                .and_then(|editor| editor.read(cx).addon::<VimAddon>().cloned());
 434            let Some(vim) = vim else { return };
 435            vim.entity.update(cx, |_, cx| {
 436                cx.defer_in(window, |vim, window, cx| vim.search_submit(window, cx))
 437            })
 438        });
 439        workspace.register_action(|_, _: &GoToTab, window, cx| {
 440            let count = Vim::take_count(cx);
 441            Vim::take_forced_motion(cx);
 442
 443            if let Some(tab_index) = count {
 444                // <count>gt goes to tab <count> (1-based).
 445                let zero_based_index = tab_index.saturating_sub(1);
 446                window.dispatch_action(
 447                    workspace::pane::ActivateItem(zero_based_index).boxed_clone(),
 448                    cx,
 449                );
 450            } else {
 451                // If no count is provided, go to the next tab.
 452                window.dispatch_action(workspace::pane::ActivateNextItem.boxed_clone(), cx);
 453            }
 454        });
 455
 456        workspace.register_action(|workspace, _: &GoToPreviousTab, window, cx| {
 457            let count = Vim::take_count(cx);
 458            Vim::take_forced_motion(cx);
 459
 460            if let Some(count) = count {
 461                // gT with count goes back that many tabs with wraparound (not the same as gt!).
 462                let pane = workspace.active_pane().read(cx);
 463                let item_count = pane.items().count();
 464                if item_count > 0 {
 465                    let current_index = pane.active_item_index();
 466                    let target_index = (current_index as isize - count as isize)
 467                        .rem_euclid(item_count as isize)
 468                        as usize;
 469                    window.dispatch_action(
 470                        workspace::pane::ActivateItem(target_index).boxed_clone(),
 471                        cx,
 472                    );
 473                }
 474            } else {
 475                // No count provided, go to the previous tab.
 476                window.dispatch_action(workspace::pane::ActivatePreviousItem.boxed_clone(), cx);
 477            }
 478        });
 479    })
 480    .detach();
 481}
 482
 483#[derive(Clone)]
 484pub(crate) struct VimAddon {
 485    pub(crate) entity: Entity<Vim>,
 486}
 487
 488impl editor::Addon for VimAddon {
 489    fn extend_key_context(&self, key_context: &mut KeyContext, cx: &App) {
 490        self.entity.read(cx).extend_key_context(key_context, cx)
 491    }
 492
 493    fn to_any(&self) -> &dyn std::any::Any {
 494        self
 495    }
 496}
 497
 498/// The state pertaining to Vim mode.
 499pub(crate) struct Vim {
 500    pub(crate) mode: Mode,
 501    pub last_mode: Mode,
 502    pub temp_mode: bool,
 503    pub status_label: Option<SharedString>,
 504    pub exit_temporary_mode: bool,
 505
 506    operator_stack: Vec<Operator>,
 507    pub(crate) replacements: Vec<(Range<editor::Anchor>, String)>,
 508
 509    pub(crate) stored_visual_mode: Option<(Mode, Vec<bool>)>,
 510
 511    pub(crate) current_tx: Option<TransactionId>,
 512    pub(crate) current_anchor: Option<Selection<Anchor>>,
 513    pub(crate) undo_modes: HashMap<TransactionId, Mode>,
 514    pub(crate) undo_last_line_tx: Option<TransactionId>,
 515    extended_pending_selection_id: Option<usize>,
 516
 517    selected_register: Option<char>,
 518    pub search: SearchState,
 519
 520    editor: WeakEntity<Editor>,
 521
 522    last_command: Option<String>,
 523    running_command: Option<Task<()>>,
 524    _subscriptions: Vec<Subscription>,
 525}
 526
 527// Hack: Vim intercepts events dispatched to a window and updates the view in response.
 528// This means it needs a VisualContext. The easiest way to satisfy that constraint is
 529// to make Vim a "View" that is just never actually rendered.
 530impl Render for Vim {
 531    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
 532        gpui::Empty
 533    }
 534}
 535
 536enum VimEvent {
 537    Focused,
 538}
 539impl EventEmitter<VimEvent> for Vim {}
 540
 541impl Vim {
 542    /// The namespace for Vim actions.
 543    const NAMESPACE: &'static str = "vim";
 544
 545    pub fn new(window: &mut Window, cx: &mut Context<Editor>) -> Entity<Self> {
 546        let editor = cx.entity();
 547
 548        let initial_vim_mode = VimSettings::get_global(cx).default_mode;
 549        let (mode, last_mode) = if HelixModeSetting::get_global(cx).0 {
 550            let initial_helix_mode = match initial_vim_mode {
 551                Mode::Normal => Mode::HelixNormal,
 552                Mode::Insert => Mode::Insert,
 553                // Otherwise, we panic with a note that we should never get there due to the
 554                // possible values of VimSettings::get_global(cx).default_mode being either Mode::Normal or Mode::Insert.
 555                _ => unreachable!("Invalid default mode"),
 556            };
 557            (initial_helix_mode, Mode::HelixNormal)
 558        } else {
 559            (initial_vim_mode, Mode::Normal)
 560        };
 561
 562        cx.new(|cx| Vim {
 563            mode,
 564            last_mode,
 565            temp_mode: false,
 566            exit_temporary_mode: false,
 567            operator_stack: Vec::new(),
 568            replacements: Vec::new(),
 569
 570            stored_visual_mode: None,
 571            current_tx: None,
 572            undo_last_line_tx: None,
 573            current_anchor: None,
 574            extended_pending_selection_id: None,
 575            undo_modes: HashMap::default(),
 576
 577            status_label: None,
 578            selected_register: None,
 579            search: SearchState::default(),
 580
 581            last_command: None,
 582            running_command: None,
 583
 584            editor: editor.downgrade(),
 585            _subscriptions: vec![
 586                cx.observe_keystrokes(Self::observe_keystrokes),
 587                cx.subscribe_in(&editor, window, |this, _, event, window, cx| {
 588                    this.handle_editor_event(event, window, cx)
 589                }),
 590            ],
 591        })
 592    }
 593
 594    fn register(editor: &mut Editor, window: Option<&mut Window>, cx: &mut Context<Editor>) {
 595        let Some(window) = window else {
 596            return;
 597        };
 598
 599        if !editor.use_modal_editing() {
 600            return;
 601        }
 602
 603        let mut was_enabled = Vim::enabled(cx);
 604        let mut was_helix_enabled = HelixModeSetting::get_global(cx).0;
 605        let mut was_toggle = VimSettings::get_global(cx).toggle_relative_line_numbers;
 606        cx.observe_global_in::<SettingsStore>(window, move |editor, window, cx| {
 607            let enabled = Vim::enabled(cx);
 608            let helix_enabled = HelixModeSetting::get_global(cx).0;
 609            let toggle = VimSettings::get_global(cx).toggle_relative_line_numbers;
 610            if enabled && was_enabled && (toggle != was_toggle) {
 611                if toggle {
 612                    let is_relative = editor
 613                        .addon::<VimAddon>()
 614                        .map(|vim| vim.entity.read(cx).mode != Mode::Insert);
 615                    editor.set_relative_line_number(is_relative, cx)
 616                } else {
 617                    editor.set_relative_line_number(None, cx)
 618                }
 619            }
 620            let helix_changed = was_helix_enabled != helix_enabled;
 621            was_toggle = toggle;
 622            was_helix_enabled = helix_enabled;
 623
 624            let state_changed = (was_enabled != enabled) || (was_enabled && helix_changed);
 625            if !state_changed {
 626                return;
 627            }
 628            if was_enabled {
 629                Self::deactivate(editor, cx);
 630            }
 631            was_enabled = enabled;
 632            if enabled {
 633                Self::activate(editor, window, cx);
 634            }
 635        })
 636        .detach();
 637        if was_enabled {
 638            Self::activate(editor, window, cx)
 639        }
 640    }
 641
 642    fn activate(editor: &mut Editor, window: &mut Window, cx: &mut Context<Editor>) {
 643        let vim = Vim::new(window, cx);
 644        let state = vim.update(cx, |vim, cx| {
 645            if !editor.use_modal_editing() {
 646                vim.mode = Mode::Insert;
 647            }
 648
 649            vim.state_for_editor_settings(cx)
 650        });
 651
 652        Vim::sync_vim_settings_to_editor(&state, editor, window, cx);
 653
 654        editor.register_addon(VimAddon {
 655            entity: vim.clone(),
 656        });
 657
 658        vim.update(cx, |_, cx| {
 659            Vim::action(editor, cx, |vim, _: &SwitchToNormalMode, window, cx| {
 660                vim.switch_mode(Mode::Normal, false, window, cx)
 661            });
 662
 663            Vim::action(editor, cx, |vim, _: &SwitchToInsertMode, window, cx| {
 664                vim.switch_mode(Mode::Insert, false, window, cx)
 665            });
 666
 667            Vim::action(editor, cx, |vim, _: &SwitchToReplaceMode, window, cx| {
 668                vim.switch_mode(Mode::Replace, false, window, cx)
 669            });
 670
 671            Vim::action(editor, cx, |vim, _: &SwitchToVisualMode, window, cx| {
 672                vim.switch_mode(Mode::Visual, false, window, cx)
 673            });
 674
 675            Vim::action(editor, cx, |vim, _: &SwitchToVisualLineMode, window, cx| {
 676                vim.switch_mode(Mode::VisualLine, false, window, cx)
 677            });
 678
 679            Vim::action(
 680                editor,
 681                cx,
 682                |vim, _: &SwitchToVisualBlockMode, window, cx| {
 683                    vim.switch_mode(Mode::VisualBlock, false, window, cx)
 684                },
 685            );
 686
 687            Vim::action(
 688                editor,
 689                cx,
 690                |vim, _: &SwitchToHelixNormalMode, window, cx| {
 691                    vim.switch_mode(Mode::HelixNormal, true, window, cx)
 692                },
 693            );
 694            Vim::action(editor, cx, |_, _: &PushForcedMotion, _, cx| {
 695                Vim::globals(cx).forced_motion = true;
 696            });
 697            Vim::action(editor, cx, |vim, action: &PushObject, window, cx| {
 698                vim.push_operator(
 699                    Operator::Object {
 700                        around: action.around,
 701                    },
 702                    window,
 703                    cx,
 704                )
 705            });
 706
 707            Vim::action(editor, cx, |vim, action: &PushFindForward, window, cx| {
 708                vim.push_operator(
 709                    Operator::FindForward {
 710                        before: action.before,
 711                        multiline: action.multiline,
 712                    },
 713                    window,
 714                    cx,
 715                )
 716            });
 717
 718            Vim::action(editor, cx, |vim, action: &PushFindBackward, window, cx| {
 719                vim.push_operator(
 720                    Operator::FindBackward {
 721                        after: action.after,
 722                        multiline: action.multiline,
 723                    },
 724                    window,
 725                    cx,
 726                )
 727            });
 728
 729            Vim::action(editor, cx, |vim, action: &PushSneak, window, cx| {
 730                vim.push_operator(
 731                    Operator::Sneak {
 732                        first_char: action.first_char,
 733                    },
 734                    window,
 735                    cx,
 736                )
 737            });
 738
 739            Vim::action(editor, cx, |vim, action: &PushSneakBackward, window, cx| {
 740                vim.push_operator(
 741                    Operator::SneakBackward {
 742                        first_char: action.first_char,
 743                    },
 744                    window,
 745                    cx,
 746                )
 747            });
 748
 749            Vim::action(editor, cx, |vim, _: &PushAddSurrounds, window, cx| {
 750                vim.push_operator(Operator::AddSurrounds { target: None }, window, cx)
 751            });
 752
 753            Vim::action(
 754                editor,
 755                cx,
 756                |vim, action: &PushChangeSurrounds, window, cx| {
 757                    vim.push_operator(
 758                        Operator::ChangeSurrounds {
 759                            target: action.target,
 760                            opening: false,
 761                        },
 762                        window,
 763                        cx,
 764                    )
 765                },
 766            );
 767
 768            Vim::action(editor, cx, |vim, action: &PushJump, window, cx| {
 769                vim.push_operator(Operator::Jump { line: action.line }, window, cx)
 770            });
 771
 772            Vim::action(editor, cx, |vim, action: &PushDigraph, window, cx| {
 773                vim.push_operator(
 774                    Operator::Digraph {
 775                        first_char: action.first_char,
 776                    },
 777                    window,
 778                    cx,
 779                )
 780            });
 781
 782            Vim::action(editor, cx, |vim, action: &PushLiteral, window, cx| {
 783                vim.push_operator(
 784                    Operator::Literal {
 785                        prefix: action.prefix.clone(),
 786                    },
 787                    window,
 788                    cx,
 789                )
 790            });
 791
 792            Vim::action(editor, cx, |vim, _: &PushChange, window, cx| {
 793                vim.push_operator(Operator::Change, window, cx)
 794            });
 795
 796            Vim::action(editor, cx, |vim, _: &PushDelete, window, cx| {
 797                vim.push_operator(Operator::Delete, window, cx)
 798            });
 799
 800            Vim::action(editor, cx, |vim, _: &PushYank, window, cx| {
 801                vim.push_operator(Operator::Yank, window, cx)
 802            });
 803
 804            Vim::action(editor, cx, |vim, _: &PushReplace, window, cx| {
 805                vim.push_operator(Operator::Replace, window, cx)
 806            });
 807
 808            Vim::action(editor, cx, |vim, _: &PushDeleteSurrounds, window, cx| {
 809                vim.push_operator(Operator::DeleteSurrounds, window, cx)
 810            });
 811
 812            Vim::action(editor, cx, |vim, _: &PushMark, window, cx| {
 813                vim.push_operator(Operator::Mark, window, cx)
 814            });
 815
 816            Vim::action(editor, cx, |vim, _: &PushIndent, window, cx| {
 817                vim.push_operator(Operator::Indent, window, cx)
 818            });
 819
 820            Vim::action(editor, cx, |vim, _: &PushOutdent, window, cx| {
 821                vim.push_operator(Operator::Outdent, window, cx)
 822            });
 823
 824            Vim::action(editor, cx, |vim, _: &PushAutoIndent, window, cx| {
 825                vim.push_operator(Operator::AutoIndent, window, cx)
 826            });
 827
 828            Vim::action(editor, cx, |vim, _: &PushRewrap, window, cx| {
 829                vim.push_operator(Operator::Rewrap, window, cx)
 830            });
 831
 832            Vim::action(editor, cx, |vim, _: &PushShellCommand, window, cx| {
 833                vim.push_operator(Operator::ShellCommand, window, cx)
 834            });
 835
 836            Vim::action(editor, cx, |vim, _: &PushLowercase, window, cx| {
 837                vim.push_operator(Operator::Lowercase, window, cx)
 838            });
 839
 840            Vim::action(editor, cx, |vim, _: &PushUppercase, window, cx| {
 841                vim.push_operator(Operator::Uppercase, window, cx)
 842            });
 843
 844            Vim::action(editor, cx, |vim, _: &PushOppositeCase, window, cx| {
 845                vim.push_operator(Operator::OppositeCase, window, cx)
 846            });
 847
 848            Vim::action(editor, cx, |vim, _: &PushRot13, window, cx| {
 849                vim.push_operator(Operator::Rot13, window, cx)
 850            });
 851
 852            Vim::action(editor, cx, |vim, _: &PushRot47, window, cx| {
 853                vim.push_operator(Operator::Rot47, window, cx)
 854            });
 855
 856            Vim::action(editor, cx, |vim, _: &PushRegister, window, cx| {
 857                vim.push_operator(Operator::Register, window, cx)
 858            });
 859
 860            Vim::action(editor, cx, |vim, _: &PushRecordRegister, window, cx| {
 861                vim.push_operator(Operator::RecordRegister, window, cx)
 862            });
 863
 864            Vim::action(editor, cx, |vim, _: &PushReplayRegister, window, cx| {
 865                vim.push_operator(Operator::ReplayRegister, window, cx)
 866            });
 867
 868            Vim::action(
 869                editor,
 870                cx,
 871                |vim, _: &PushReplaceWithRegister, window, cx| {
 872                    vim.push_operator(Operator::ReplaceWithRegister, window, cx)
 873                },
 874            );
 875
 876            Vim::action(editor, cx, |vim, _: &Exchange, window, cx| {
 877                if vim.mode.is_visual() {
 878                    vim.exchange_visual(window, cx)
 879                } else {
 880                    vim.push_operator(Operator::Exchange, window, cx)
 881                }
 882            });
 883
 884            Vim::action(editor, cx, |vim, _: &ClearExchange, window, cx| {
 885                vim.clear_exchange(window, cx)
 886            });
 887
 888            Vim::action(editor, cx, |vim, _: &PushToggleComments, window, cx| {
 889                vim.push_operator(Operator::ToggleComments, window, cx)
 890            });
 891
 892            Vim::action(editor, cx, |vim, _: &ClearOperators, window, cx| {
 893                vim.clear_operator(window, cx)
 894            });
 895            Vim::action(editor, cx, |vim, n: &Number, window, cx| {
 896                vim.push_count_digit(n.0, window, cx);
 897            });
 898            Vim::action(editor, cx, |vim, _: &Tab, window, cx| {
 899                vim.input_ignored(" ".into(), window, cx)
 900            });
 901            Vim::action(
 902                editor,
 903                cx,
 904                |vim, action: &editor::actions::AcceptEditPrediction, window, cx| {
 905                    vim.update_editor(cx, |_, editor, cx| {
 906                        editor.accept_edit_prediction(action, window, cx);
 907                    });
 908                    // In non-insertion modes, predictions will be hidden and instead a jump will be
 909                    // displayed (and performed by `accept_edit_prediction`). This switches to
 910                    // insert mode so that the prediction is displayed after the jump.
 911                    match vim.mode {
 912                        Mode::Replace => {}
 913                        _ => vim.switch_mode(Mode::Insert, true, window, cx),
 914                    };
 915                },
 916            );
 917            Vim::action(editor, cx, |vim, _: &Enter, window, cx| {
 918                vim.input_ignored("\n".into(), window, cx)
 919            });
 920            Vim::action(editor, cx, |vim, _: &PushHelixMatch, window, cx| {
 921                vim.push_operator(Operator::HelixMatch, window, cx)
 922            });
 923            Vim::action(editor, cx, |vim, action: &PushHelixNext, window, cx| {
 924                vim.push_operator(
 925                    Operator::HelixNext {
 926                        around: action.around,
 927                    },
 928                    window,
 929                    cx,
 930                );
 931            });
 932            Vim::action(editor, cx, |vim, action: &PushHelixPrevious, window, cx| {
 933                vim.push_operator(
 934                    Operator::HelixPrevious {
 935                        around: action.around,
 936                    },
 937                    window,
 938                    cx,
 939                );
 940            });
 941
 942            Vim::action(
 943                editor,
 944                cx,
 945                |vim, _: &editor::actions::Paste, window, cx| match vim.mode {
 946                    Mode::Replace => vim.paste_replace(window, cx),
 947                    Mode::Visual | Mode::VisualLine | Mode::VisualBlock => {
 948                        vim.selected_register.replace('+');
 949                        vim.paste(&VimPaste::default(), window, cx);
 950                    }
 951                    _ => {
 952                        vim.update_editor(cx, |_, editor, cx| editor.paste(&Paste, window, cx));
 953                    }
 954                },
 955            );
 956
 957            normal::register(editor, cx);
 958            insert::register(editor, cx);
 959            helix::register(editor, cx);
 960            motion::register(editor, cx);
 961            command::register(editor, cx);
 962            replace::register(editor, cx);
 963            indent::register(editor, cx);
 964            rewrap::register(editor, cx);
 965            object::register(editor, cx);
 966            visual::register(editor, cx);
 967            change_list::register(editor, cx);
 968            digraph::register(editor, cx);
 969
 970            if editor.is_focused(window) {
 971                cx.defer_in(window, |vim, window, cx| {
 972                    vim.focused(false, window, cx);
 973                })
 974            }
 975        })
 976    }
 977
 978    fn deactivate(editor: &mut Editor, cx: &mut Context<Editor>) {
 979        editor.set_cursor_shape(
 980            EditorSettings::get_global(cx)
 981                .cursor_shape
 982                .unwrap_or_default(),
 983            cx,
 984        );
 985        editor.set_clip_at_line_ends(false, cx);
 986        editor.set_collapse_matches(false);
 987        editor.set_input_enabled(true);
 988        editor.set_expects_character_input(true);
 989        editor.set_autoindent(true);
 990        editor.selections.set_line_mode(false);
 991        editor.unregister_addon::<VimAddon>();
 992        editor.set_relative_line_number(None, cx);
 993        if let Some(vim) = Vim::globals(cx).focused_vim()
 994            && vim.entity_id() == cx.entity().entity_id()
 995        {
 996            Vim::globals(cx).focused_vim = None;
 997        }
 998    }
 999
1000    /// Register an action on the editor.
1001    pub fn action<A: Action>(
1002        editor: &mut Editor,
1003        cx: &mut Context<Vim>,
1004        f: impl Fn(&mut Vim, &A, &mut Window, &mut Context<Vim>) + 'static,
1005    ) {
1006        let subscription = editor.register_action(cx.listener(move |vim, action, window, cx| {
1007            if !Vim::globals(cx).dot_replaying {
1008                if vim.status_label.take().is_some() {
1009                    cx.notify();
1010                }
1011            }
1012            f(vim, action, window, cx);
1013        }));
1014        cx.on_release(|_, _| drop(subscription)).detach();
1015    }
1016
1017    pub fn editor(&self) -> Option<Entity<Editor>> {
1018        self.editor.upgrade()
1019    }
1020
1021    pub fn workspace(&self, window: &Window, cx: &App) -> Option<Entity<Workspace>> {
1022        Workspace::for_window(window, cx)
1023    }
1024
1025    pub fn pane(&self, window: &Window, cx: &Context<Self>) -> Option<Entity<Pane>> {
1026        self.workspace(window, cx)
1027            .map(|workspace| workspace.read(cx).focused_pane(window, cx))
1028    }
1029
1030    pub fn enabled(cx: &mut App) -> bool {
1031        VimModeSetting::get_global(cx).0 || HelixModeSetting::get_global(cx).0
1032    }
1033
1034    /// Called whenever an keystroke is typed so vim can observe all actions
1035    /// and keystrokes accordingly.
1036    fn observe_keystrokes(
1037        &mut self,
1038        keystroke_event: &KeystrokeEvent,
1039        window: &mut Window,
1040        cx: &mut Context<Self>,
1041    ) {
1042        if self.exit_temporary_mode {
1043            self.exit_temporary_mode = false;
1044            // Don't switch to insert mode if the action is temporary_normal.
1045            if let Some(action) = keystroke_event.action.as_ref()
1046                && action.as_any().downcast_ref::<TemporaryNormal>().is_some()
1047            {
1048                return;
1049            }
1050            self.switch_mode(Mode::Insert, false, window, cx)
1051        }
1052        if let Some(action) = keystroke_event.action.as_ref() {
1053            // Keystroke is handled by the vim system, so continue forward
1054            if action.name().starts_with("vim::") {
1055                self.update_editor(cx, |_, editor, cx| {
1056                    editor.hide_mouse_cursor(HideMouseCursorOrigin::MovementAction, cx)
1057                });
1058
1059                return;
1060            }
1061        } else if window.has_pending_keystrokes() || keystroke_event.keystroke.is_ime_in_progress()
1062        {
1063            return;
1064        }
1065
1066        if let Some(operator) = self.active_operator() {
1067            match operator {
1068                Operator::Literal { prefix } => {
1069                    self.handle_literal_keystroke(
1070                        keystroke_event,
1071                        prefix.unwrap_or_default(),
1072                        window,
1073                        cx,
1074                    );
1075                }
1076                _ if !operator.is_waiting(self.mode) => {
1077                    self.clear_operator(window, cx);
1078                    self.stop_recording_immediately(Box::new(ClearOperators), cx)
1079                }
1080                _ => {}
1081            }
1082        }
1083    }
1084
1085    fn handle_editor_event(
1086        &mut self,
1087        event: &EditorEvent,
1088        window: &mut Window,
1089        cx: &mut Context<Self>,
1090    ) {
1091        match event {
1092            EditorEvent::Focused => self.focused(true, window, cx),
1093            EditorEvent::Blurred => self.blurred(window, cx),
1094            EditorEvent::SelectionsChanged { local: true } => {
1095                self.local_selections_changed(window, cx);
1096            }
1097            EditorEvent::InputIgnored { text } => {
1098                self.input_ignored(text.clone(), window, cx);
1099                Vim::globals(cx).observe_insertion(text, None)
1100            }
1101            EditorEvent::InputHandled {
1102                text,
1103                utf16_range_to_replace: range_to_replace,
1104            } => Vim::globals(cx).observe_insertion(text, range_to_replace.clone()),
1105            EditorEvent::TransactionBegun { transaction_id } => {
1106                self.transaction_begun(*transaction_id, window, cx)
1107            }
1108            EditorEvent::TransactionUndone { transaction_id } => {
1109                self.transaction_undone(transaction_id, window, cx)
1110            }
1111            EditorEvent::Edited { .. } => self.push_to_change_list(window, cx),
1112            EditorEvent::FocusedIn => self.sync_vim_settings(window, cx),
1113            EditorEvent::CursorShapeChanged => self.cursor_shape_changed(window, cx),
1114            EditorEvent::PushedToNavHistory {
1115                anchor,
1116                is_deactivate,
1117            } => {
1118                self.update_editor(cx, |vim, editor, cx| {
1119                    let mark = if *is_deactivate {
1120                        "\"".to_string()
1121                    } else {
1122                        "'".to_string()
1123                    };
1124                    vim.set_mark(mark, vec![*anchor], editor.buffer(), window, cx);
1125                });
1126            }
1127            _ => {}
1128        }
1129    }
1130
1131    fn push_operator(&mut self, operator: Operator, window: &mut Window, cx: &mut Context<Self>) {
1132        if operator.starts_dot_recording() {
1133            self.start_recording(cx);
1134        }
1135        // Since these operations can only be entered with pre-operators,
1136        // we need to clear the previous operators when pushing,
1137        // so that the current stack is the most correct
1138        if matches!(
1139            operator,
1140            Operator::AddSurrounds { .. }
1141                | Operator::ChangeSurrounds { .. }
1142                | Operator::DeleteSurrounds
1143                | Operator::Exchange
1144        ) {
1145            self.operator_stack.clear();
1146        };
1147        self.operator_stack.push(operator);
1148        self.sync_vim_settings(window, cx);
1149    }
1150
1151    pub fn switch_mode(
1152        &mut self,
1153        mode: Mode,
1154        leave_selections: bool,
1155        window: &mut Window,
1156        cx: &mut Context<Self>,
1157    ) {
1158        if self.temp_mode && mode == Mode::Normal {
1159            self.temp_mode = false;
1160            self.switch_mode(Mode::Normal, leave_selections, window, cx);
1161            self.switch_mode(Mode::Insert, false, window, cx);
1162            return;
1163        } else if self.temp_mode
1164            && !matches!(mode, Mode::Visual | Mode::VisualLine | Mode::VisualBlock)
1165        {
1166            self.temp_mode = false;
1167        }
1168
1169        let last_mode = self.mode;
1170        let prior_mode = self.last_mode;
1171        let prior_tx = self.current_tx;
1172        self.last_mode = last_mode;
1173        self.mode = mode;
1174        self.operator_stack.clear();
1175        self.selected_register.take();
1176        self.cancel_running_command(window, cx);
1177        if mode == Mode::Normal || mode != last_mode {
1178            self.current_tx.take();
1179            self.current_anchor.take();
1180            self.update_editor(cx, |_, editor, _| {
1181                editor.clear_selection_drag_state();
1182            });
1183        }
1184        Vim::take_forced_motion(cx);
1185        if mode != Mode::Insert && mode != Mode::Replace {
1186            Vim::take_count(cx);
1187        }
1188
1189        // Sync editor settings like clip mode
1190        self.sync_vim_settings(window, cx);
1191
1192        if VimSettings::get_global(cx).toggle_relative_line_numbers
1193            && self.mode != self.last_mode
1194            && (self.mode == Mode::Insert || self.last_mode == Mode::Insert)
1195        {
1196            self.update_editor(cx, |vim, editor, cx| {
1197                let is_relative = vim.mode != Mode::Insert;
1198                editor.set_relative_line_number(Some(is_relative), cx)
1199            });
1200        }
1201        if HelixModeSetting::get_global(cx).0 {
1202            if self.mode == Mode::Normal {
1203                self.mode = Mode::HelixNormal
1204            } else if self.mode == Mode::Visual {
1205                self.mode = Mode::HelixSelect
1206            }
1207        }
1208
1209        if leave_selections {
1210            return;
1211        }
1212
1213        if !mode.is_visual() && last_mode.is_visual() {
1214            self.create_visual_marks(last_mode, window, cx);
1215        }
1216
1217        // Adjust selections
1218        self.update_editor(cx, |vim, editor, cx| {
1219            if last_mode != Mode::VisualBlock && last_mode.is_visual() && mode == Mode::VisualBlock
1220            {
1221                vim.visual_block_motion(true, editor, window, cx, &mut |_, point, goal| {
1222                    Some((point, goal))
1223                })
1224            }
1225            if (last_mode == Mode::Insert || last_mode == Mode::Replace)
1226                && let Some(prior_tx) = prior_tx
1227            {
1228                editor.group_until_transaction(prior_tx, cx)
1229            }
1230
1231            editor.change_selections(SelectionEffects::no_scroll(), window, cx, |s| {
1232                // we cheat with visual block mode and use multiple cursors.
1233                // the cost of this cheat is we need to convert back to a single
1234                // cursor whenever vim would.
1235                if last_mode == Mode::VisualBlock
1236                    && (mode != Mode::VisualBlock && mode != Mode::Insert)
1237                {
1238                    let tail = s.oldest_anchor().tail();
1239                    let head = s.newest_anchor().head();
1240                    s.select_anchor_ranges(vec![tail..head]);
1241                } else if last_mode == Mode::Insert
1242                    && prior_mode == Mode::VisualBlock
1243                    && mode != Mode::VisualBlock
1244                {
1245                    let pos = s.first_anchor().head();
1246                    s.select_anchor_ranges(vec![pos..pos])
1247                }
1248
1249                let mut should_extend_pending = false;
1250                if !last_mode.is_visual()
1251                    && mode.is_visual()
1252                    && let Some(pending) = s.pending_anchor()
1253                {
1254                    let snapshot = s.display_snapshot();
1255                    let is_empty = pending
1256                        .start
1257                        .cmp(&pending.end, &snapshot.buffer_snapshot())
1258                        .is_eq();
1259                    should_extend_pending = pending.reversed
1260                        && !is_empty
1261                        && vim.extended_pending_selection_id != Some(pending.id);
1262                };
1263
1264                if should_extend_pending {
1265                    let snapshot = s.display_snapshot();
1266                    s.change_with(&snapshot, |map| {
1267                        if let Some(pending) = map.pending_anchor_mut() {
1268                            let end = pending.end.to_point(&snapshot.buffer_snapshot());
1269                            let end = end.to_display_point(&snapshot);
1270                            let new_end = movement::right(&snapshot, end);
1271                            pending.end = snapshot
1272                                .buffer_snapshot()
1273                                .anchor_before(new_end.to_point(&snapshot));
1274                        }
1275                    });
1276                    vim.extended_pending_selection_id = s.pending_anchor().map(|p| p.id)
1277                }
1278
1279                s.move_with(&mut |map, selection| {
1280                    if last_mode.is_visual() && !mode.is_visual() {
1281                        let mut point = selection.head();
1282                        if !selection.reversed && !selection.is_empty() {
1283                            point = movement::left(map, selection.head());
1284                        } else if selection.is_empty() {
1285                            point = map.clip_point(point, Bias::Left);
1286                        }
1287                        selection.collapse_to(point, selection.goal)
1288                    } else if !last_mode.is_visual() && mode.is_visual() {
1289                        if selection.is_empty() {
1290                            selection.end = movement::right(map, selection.start);
1291                        }
1292                    }
1293                });
1294            })
1295        });
1296    }
1297
1298    pub fn take_count(cx: &mut App) -> Option<usize> {
1299        let global_state = cx.global_mut::<VimGlobals>();
1300        if global_state.dot_replaying {
1301            return global_state.recorded_count;
1302        }
1303
1304        let count = if global_state.post_count.is_none() && global_state.pre_count.is_none() {
1305            return None;
1306        } else {
1307            Some(
1308                global_state.post_count.take().unwrap_or(1)
1309                    * global_state.pre_count.take().unwrap_or(1),
1310            )
1311        };
1312
1313        if global_state.dot_recording {
1314            global_state.recording_count = count;
1315        }
1316        count
1317    }
1318
1319    pub fn take_forced_motion(cx: &mut App) -> bool {
1320        let global_state = cx.global_mut::<VimGlobals>();
1321        let forced_motion = global_state.forced_motion;
1322        global_state.forced_motion = false;
1323        forced_motion
1324    }
1325
1326    pub fn cursor_shape(&self, cx: &App) -> CursorShape {
1327        let cursor_shape = VimSettings::get_global(cx).cursor_shape;
1328        match self.mode {
1329            Mode::Normal => {
1330                if let Some(operator) = self.operator_stack.last() {
1331                    match operator {
1332                        // Navigation operators -> Block cursor
1333                        Operator::FindForward { .. }
1334                        | Operator::FindBackward { .. }
1335                        | Operator::Mark
1336                        | Operator::Jump { .. }
1337                        | Operator::Register
1338                        | Operator::RecordRegister
1339                        | Operator::ReplayRegister => CursorShape::Block,
1340
1341                        // All other operators -> Underline cursor
1342                        _ => CursorShape::Underline,
1343                    }
1344                } else {
1345                    cursor_shape.normal
1346                }
1347            }
1348            Mode::HelixNormal => cursor_shape.normal,
1349            Mode::Replace => cursor_shape.replace,
1350            Mode::Visual | Mode::VisualLine | Mode::VisualBlock | Mode::HelixSelect => {
1351                cursor_shape.visual
1352            }
1353            Mode::Insert => match cursor_shape.insert {
1354                InsertModeCursorShape::Explicit(shape) => shape,
1355                InsertModeCursorShape::Inherit => {
1356                    let editor_settings = EditorSettings::get_global(cx);
1357                    editor_settings.cursor_shape.unwrap_or_default()
1358                }
1359            },
1360        }
1361    }
1362
1363    fn expects_character_input(&self) -> bool {
1364        if let Some(operator) = self.operator_stack.last() {
1365            if operator.is_waiting(self.mode) {
1366                return true;
1367            }
1368        }
1369        self.editor_input_enabled()
1370    }
1371
1372    pub fn editor_input_enabled(&self) -> bool {
1373        match self.mode {
1374            Mode::Insert => {
1375                if let Some(operator) = self.operator_stack.last() {
1376                    !operator.is_waiting(self.mode)
1377                } else {
1378                    true
1379                }
1380            }
1381            Mode::Normal
1382            | Mode::HelixNormal
1383            | Mode::Replace
1384            | Mode::Visual
1385            | Mode::VisualLine
1386            | Mode::VisualBlock
1387            | Mode::HelixSelect => false,
1388        }
1389    }
1390
1391    pub fn should_autoindent(&self) -> bool {
1392        !(self.mode == Mode::Insert && self.last_mode == Mode::VisualBlock)
1393    }
1394
1395    pub fn clip_at_line_ends(&self) -> bool {
1396        match self.mode {
1397            Mode::Insert
1398            | Mode::Visual
1399            | Mode::VisualLine
1400            | Mode::VisualBlock
1401            | Mode::Replace
1402            | Mode::HelixNormal
1403            | Mode::HelixSelect => false,
1404            Mode::Normal => true,
1405        }
1406    }
1407
1408    pub fn extend_key_context(&self, context: &mut KeyContext, cx: &App) {
1409        let mut mode = match self.mode {
1410            Mode::Normal => "normal",
1411            Mode::Visual | Mode::VisualLine | Mode::VisualBlock => "visual",
1412            Mode::Insert => "insert",
1413            Mode::Replace => "replace",
1414            Mode::HelixNormal => "helix_normal",
1415            Mode::HelixSelect => "helix_select",
1416        }
1417        .to_string();
1418
1419        let mut operator_id = "none";
1420
1421        let active_operator = self.active_operator();
1422        if active_operator.is_none() && cx.global::<VimGlobals>().pre_count.is_some()
1423            || active_operator.is_some() && cx.global::<VimGlobals>().post_count.is_some()
1424        {
1425            context.add("VimCount");
1426        }
1427
1428        if let Some(active_operator) = active_operator {
1429            if active_operator.is_waiting(self.mode) {
1430                if matches!(active_operator, Operator::Literal { .. }) {
1431                    mode = "literal".to_string();
1432                } else {
1433                    mode = "waiting".to_string();
1434                }
1435            } else {
1436                operator_id = active_operator.id();
1437                mode = "operator".to_string();
1438            }
1439        }
1440
1441        if mode == "normal"
1442            || mode == "visual"
1443            || mode == "operator"
1444            || mode == "helix_normal"
1445            || mode == "helix_select"
1446        {
1447            context.add("VimControl");
1448        }
1449        context.set("vim_mode", mode);
1450        context.set("vim_operator", operator_id);
1451    }
1452
1453    fn focused(&mut self, preserve_selection: bool, window: &mut Window, cx: &mut Context<Self>) {
1454        // If editor gains focus while search bar is still open (not dismissed),
1455        // the user has explicitly navigated away - clear prior_selections so we
1456        // don't restore to the old position if they later dismiss the search.
1457        if !self.search.prior_selections.is_empty() {
1458            if let Some(pane) = self.pane(window, cx) {
1459                let search_still_open = pane
1460                    .read(cx)
1461                    .toolbar()
1462                    .read(cx)
1463                    .item_of_type::<BufferSearchBar>()
1464                    .is_some_and(|bar| !bar.read(cx).is_dismissed());
1465                if search_still_open {
1466                    self.search.prior_selections.clear();
1467                }
1468            }
1469        }
1470
1471        let Some(editor) = self.editor() else {
1472            return;
1473        };
1474        let newest_selection_empty = editor.update(cx, |editor, cx| {
1475            editor
1476                .selections
1477                .newest::<MultiBufferOffset>(&editor.display_snapshot(cx))
1478                .is_empty()
1479        });
1480        let editor = editor.read(cx);
1481        let editor_mode = editor.mode();
1482
1483        if editor_mode.is_full()
1484            && !newest_selection_empty
1485            && self.mode == Mode::Normal
1486            // When following someone, don't switch vim mode.
1487            && editor.leader_id().is_none()
1488        {
1489            if preserve_selection {
1490                self.switch_mode(Mode::Visual, true, window, cx);
1491            } else {
1492                self.update_editor(cx, |_, editor, cx| {
1493                    editor.set_clip_at_line_ends(false, cx);
1494                    editor.change_selections(SelectionEffects::no_scroll(), window, cx, |s| {
1495                        s.move_with(&mut |_, selection| {
1496                            selection.collapse_to(selection.start, selection.goal)
1497                        })
1498                    });
1499                });
1500            }
1501        }
1502
1503        cx.emit(VimEvent::Focused);
1504        self.sync_vim_settings(window, cx);
1505
1506        if VimSettings::get_global(cx).toggle_relative_line_numbers {
1507            if let Some(old_vim) = Vim::globals(cx).focused_vim() {
1508                if old_vim.entity_id() != cx.entity().entity_id() {
1509                    old_vim.update(cx, |vim, cx| {
1510                        vim.update_editor(cx, |_, editor, cx| {
1511                            editor.set_relative_line_number(None, cx)
1512                        });
1513                    });
1514
1515                    self.update_editor(cx, |vim, editor, cx| {
1516                        let is_relative = vim.mode != Mode::Insert;
1517                        editor.set_relative_line_number(Some(is_relative), cx)
1518                    });
1519                }
1520            } else {
1521                self.update_editor(cx, |vim, editor, cx| {
1522                    let is_relative = vim.mode != Mode::Insert;
1523                    editor.set_relative_line_number(Some(is_relative), cx)
1524                });
1525            }
1526        }
1527        Vim::globals(cx).focused_vim = Some(cx.entity().downgrade());
1528    }
1529
1530    fn blurred(&mut self, window: &mut Window, cx: &mut Context<Self>) {
1531        self.stop_recording_immediately(NormalBefore.boxed_clone(), cx);
1532        self.store_visual_marks(window, cx);
1533        self.clear_operator(window, cx);
1534        self.update_editor(cx, |vim, editor, cx| {
1535            if vim.cursor_shape(cx) == CursorShape::Block {
1536                editor.set_cursor_shape(CursorShape::Hollow, cx);
1537            }
1538        });
1539    }
1540
1541    fn cursor_shape_changed(&mut self, _: &mut Window, cx: &mut Context<Self>) {
1542        self.update_editor(cx, |vim, editor, cx| {
1543            editor.set_cursor_shape(vim.cursor_shape(cx), cx);
1544        });
1545    }
1546
1547    fn update_editor<S>(
1548        &mut self,
1549        cx: &mut Context<Self>,
1550        update: impl FnOnce(&mut Self, &mut Editor, &mut Context<Editor>) -> S,
1551    ) -> Option<S> {
1552        let editor = self.editor.upgrade()?;
1553        Some(editor.update(cx, |editor, cx| update(self, editor, cx)))
1554    }
1555
1556    fn editor_selections(&mut self, _: &mut Window, cx: &mut Context<Self>) -> Vec<Range<Anchor>> {
1557        self.update_editor(cx, |_, editor, _| {
1558            editor
1559                .selections
1560                .disjoint_anchors_arc()
1561                .iter()
1562                .map(|selection| selection.tail()..selection.head())
1563                .collect()
1564        })
1565        .unwrap_or_default()
1566    }
1567
1568    fn editor_cursor_word(
1569        &mut self,
1570        window: &mut Window,
1571        cx: &mut Context<Self>,
1572    ) -> Option<String> {
1573        self.update_editor(cx, |_, editor, cx| {
1574            let snapshot = &editor.snapshot(window, cx);
1575            let selection = editor
1576                .selections
1577                .newest::<MultiBufferOffset>(&snapshot.display_snapshot);
1578
1579            let snapshot = snapshot.buffer_snapshot();
1580            let (range, kind) =
1581                snapshot.surrounding_word(selection.start, Some(CharScopeContext::Completion));
1582            if kind == Some(CharKind::Word) {
1583                let text: String = snapshot.text_for_range(range).collect();
1584                if !text.trim().is_empty() {
1585                    return Some(text);
1586                }
1587            }
1588
1589            None
1590        })
1591        .unwrap_or_default()
1592    }
1593
1594    /// When doing an action that modifies the buffer, we start recording so that `.`
1595    /// will replay the action.
1596    pub fn start_recording(&mut self, cx: &mut Context<Self>) {
1597        Vim::update_globals(cx, |globals, cx| {
1598            if !globals.dot_replaying {
1599                globals.dot_recording = true;
1600                globals.recording_actions = Default::default();
1601                globals.recording_count = None;
1602                globals.recording_register_for_dot = self.selected_register;
1603
1604                let selections = self.editor().map(|editor| {
1605                    editor.update(cx, |editor, cx| {
1606                        let snapshot = editor.display_snapshot(cx);
1607
1608                        (
1609                            editor.selections.oldest::<Point>(&snapshot),
1610                            editor.selections.newest::<Point>(&snapshot),
1611                        )
1612                    })
1613                });
1614
1615                if let Some((oldest, newest)) = selections {
1616                    globals.recorded_selection = match self.mode {
1617                        Mode::Visual if newest.end.row == newest.start.row => {
1618                            RecordedSelection::SingleLine {
1619                                cols: newest.end.column - newest.start.column,
1620                            }
1621                        }
1622                        Mode::Visual => RecordedSelection::Visual {
1623                            rows: newest.end.row - newest.start.row,
1624                            cols: newest.end.column,
1625                        },
1626                        Mode::VisualLine => RecordedSelection::VisualLine {
1627                            rows: newest.end.row - newest.start.row,
1628                        },
1629                        Mode::VisualBlock => RecordedSelection::VisualBlock {
1630                            rows: newest.end.row.abs_diff(oldest.start.row),
1631                            cols: newest.end.column.abs_diff(oldest.start.column),
1632                        },
1633                        _ => RecordedSelection::None,
1634                    }
1635                } else {
1636                    globals.recorded_selection = RecordedSelection::None;
1637                }
1638            }
1639        })
1640    }
1641
1642    pub fn stop_replaying(&mut self, cx: &mut Context<Self>) {
1643        let globals = Vim::globals(cx);
1644        globals.dot_replaying = false;
1645        if let Some(replayer) = globals.replayer.take() {
1646            replayer.stop();
1647        }
1648    }
1649
1650    /// When finishing an action that modifies the buffer, stop recording.
1651    /// as you usually call this within a keystroke handler we also ensure that
1652    /// the current action is recorded.
1653    pub fn stop_recording(&mut self, cx: &mut Context<Self>) {
1654        let globals = Vim::globals(cx);
1655        if globals.dot_recording {
1656            globals.stop_recording_after_next_action = true;
1657        }
1658        self.exit_temporary_mode = self.temp_mode;
1659    }
1660
1661    /// Stops recording actions immediately rather than waiting until after the
1662    /// next action to stop recording.
1663    ///
1664    /// This doesn't include the current action.
1665    pub fn stop_recording_immediately(&mut self, action: Box<dyn Action>, cx: &mut Context<Self>) {
1666        let globals = Vim::globals(cx);
1667        if globals.dot_recording {
1668            globals
1669                .recording_actions
1670                .push(ReplayableAction::Action(action.boxed_clone()));
1671            globals.recorded_actions = mem::take(&mut globals.recording_actions);
1672            globals.recorded_count = globals.recording_count.take();
1673            globals.dot_recording = false;
1674            globals.stop_recording_after_next_action = false;
1675        }
1676        self.exit_temporary_mode = self.temp_mode;
1677    }
1678
1679    /// Explicitly record one action (equivalents to start_recording and stop_recording)
1680    pub fn record_current_action(&mut self, cx: &mut Context<Self>) {
1681        self.start_recording(cx);
1682        self.stop_recording(cx);
1683    }
1684
1685    fn push_count_digit(&mut self, number: usize, window: &mut Window, cx: &mut Context<Self>) {
1686        if self.active_operator().is_some() {
1687            let post_count = Vim::globals(cx).post_count.unwrap_or(0);
1688
1689            Vim::globals(cx).post_count = Some(
1690                post_count
1691                    .checked_mul(10)
1692                    .and_then(|post_count| post_count.checked_add(number))
1693                    .filter(|post_count| *post_count < isize::MAX as usize)
1694                    .unwrap_or(post_count),
1695            )
1696        } else {
1697            let pre_count = Vim::globals(cx).pre_count.unwrap_or(0);
1698
1699            Vim::globals(cx).pre_count = Some(
1700                pre_count
1701                    .checked_mul(10)
1702                    .and_then(|pre_count| pre_count.checked_add(number))
1703                    .filter(|pre_count| *pre_count < isize::MAX as usize)
1704                    .unwrap_or(pre_count),
1705            )
1706        }
1707        // update the keymap so that 0 works
1708        self.sync_vim_settings(window, cx)
1709    }
1710
1711    fn select_register(&mut self, register: Arc<str>, window: &mut Window, cx: &mut Context<Self>) {
1712        if register.chars().count() == 1 {
1713            self.selected_register
1714                .replace(register.chars().next().unwrap());
1715        }
1716        self.operator_stack.clear();
1717        self.sync_vim_settings(window, cx);
1718    }
1719
1720    fn maybe_pop_operator(&mut self) -> Option<Operator> {
1721        self.operator_stack.pop()
1722    }
1723
1724    fn pop_operator(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Operator {
1725        let popped_operator = self.operator_stack.pop()
1726            .expect("Operator popped when no operator was on the stack. This likely means there is an invalid keymap config");
1727        self.sync_vim_settings(window, cx);
1728        popped_operator
1729    }
1730
1731    fn clear_operator(&mut self, window: &mut Window, cx: &mut Context<Self>) {
1732        Vim::take_count(cx);
1733        Vim::take_forced_motion(cx);
1734        self.selected_register.take();
1735        self.operator_stack.clear();
1736        self.sync_vim_settings(window, cx);
1737    }
1738
1739    fn active_operator(&self) -> Option<Operator> {
1740        self.operator_stack.last().cloned()
1741    }
1742
1743    fn transaction_begun(
1744        &mut self,
1745        transaction_id: TransactionId,
1746        _window: &mut Window,
1747        _: &mut Context<Self>,
1748    ) {
1749        let mode = if (self.mode == Mode::Insert
1750            || self.mode == Mode::Replace
1751            || self.mode == Mode::Normal)
1752            && self.current_tx.is_none()
1753        {
1754            self.current_tx = Some(transaction_id);
1755            self.last_mode
1756        } else {
1757            self.mode
1758        };
1759        if mode == Mode::VisualLine || mode == Mode::VisualBlock {
1760            self.undo_modes.insert(transaction_id, mode);
1761        }
1762    }
1763
1764    fn transaction_undone(
1765        &mut self,
1766        transaction_id: &TransactionId,
1767        window: &mut Window,
1768        cx: &mut Context<Self>,
1769    ) {
1770        match self.mode {
1771            Mode::VisualLine | Mode::VisualBlock | Mode::Visual | Mode::HelixSelect => {
1772                self.update_editor(cx, |vim, editor, cx| {
1773                    let original_mode = vim.undo_modes.get(transaction_id);
1774                    editor.change_selections(SelectionEffects::no_scroll(), window, cx, |s| {
1775                        match original_mode {
1776                            Some(Mode::VisualLine) => {
1777                                s.move_with(&mut |map, selection| {
1778                                    selection.collapse_to(
1779                                        map.prev_line_boundary(selection.start.to_point(map)).1,
1780                                        SelectionGoal::None,
1781                                    )
1782                                });
1783                            }
1784                            Some(Mode::VisualBlock) => {
1785                                let mut first = s.first_anchor();
1786                                first.collapse_to(first.start, first.goal);
1787                                s.select_anchors(vec![first]);
1788                            }
1789                            _ => {
1790                                s.move_with(&mut |map, selection| {
1791                                    selection.collapse_to(
1792                                        map.clip_at_line_end(selection.start),
1793                                        selection.goal,
1794                                    );
1795                                });
1796                            }
1797                        }
1798                    });
1799                });
1800                self.switch_mode(Mode::Normal, true, window, cx)
1801            }
1802            Mode::Normal => {
1803                self.update_editor(cx, |_, editor, cx| {
1804                    editor.change_selections(SelectionEffects::no_scroll(), window, cx, |s| {
1805                        s.move_with(&mut |map, selection| {
1806                            selection
1807                                .collapse_to(map.clip_at_line_end(selection.end), selection.goal)
1808                        })
1809                    })
1810                });
1811            }
1812            Mode::Insert | Mode::Replace | Mode::HelixNormal => {}
1813        }
1814    }
1815
1816    fn local_selections_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
1817        let Some(editor) = self.editor() else { return };
1818
1819        if editor.read(cx).leader_id().is_some() {
1820            return;
1821        }
1822
1823        let newest = editor.read(cx).selections.newest_anchor().clone();
1824        let is_multicursor = editor.read(cx).selections.count() > 1;
1825        if self.mode == Mode::Insert && self.current_tx.is_some() {
1826            if let Some(current_anchor) = &self.current_anchor {
1827                if current_anchor != &newest
1828                    && let Some(tx_id) = self.current_tx.take()
1829                {
1830                    self.update_editor(cx, |_, editor, cx| {
1831                        editor.group_until_transaction(tx_id, cx)
1832                    });
1833                }
1834            } else {
1835                self.current_anchor = Some(newest);
1836            }
1837        } else if self.mode == Mode::Normal && newest.start != newest.end {
1838            if matches!(newest.goal, SelectionGoal::HorizontalRange { .. }) {
1839                self.switch_mode(Mode::VisualBlock, false, window, cx);
1840            } else {
1841                self.switch_mode(Mode::Visual, false, window, cx)
1842            }
1843        } else if newest.start == newest.end
1844            && !is_multicursor
1845            && [Mode::Visual, Mode::VisualLine, Mode::VisualBlock].contains(&self.mode)
1846        {
1847            self.switch_mode(Mode::Normal, false, window, cx);
1848        }
1849    }
1850
1851    fn input_ignored(&mut self, text: Arc<str>, window: &mut Window, cx: &mut Context<Self>) {
1852        if text.is_empty() {
1853            return;
1854        }
1855
1856        match self.active_operator() {
1857            Some(Operator::FindForward { before, multiline }) => {
1858                let find = Motion::FindForward {
1859                    before,
1860                    char: text.chars().next().unwrap(),
1861                    mode: if multiline {
1862                        FindRange::MultiLine
1863                    } else {
1864                        FindRange::SingleLine
1865                    },
1866                    smartcase: VimSettings::get_global(cx).use_smartcase_find,
1867                };
1868                Vim::globals(cx).last_find = Some(find.clone());
1869                self.motion(find, window, cx)
1870            }
1871            Some(Operator::FindBackward { after, multiline }) => {
1872                let find = Motion::FindBackward {
1873                    after,
1874                    char: text.chars().next().unwrap(),
1875                    mode: if multiline {
1876                        FindRange::MultiLine
1877                    } else {
1878                        FindRange::SingleLine
1879                    },
1880                    smartcase: VimSettings::get_global(cx).use_smartcase_find,
1881                };
1882                Vim::globals(cx).last_find = Some(find.clone());
1883                self.motion(find, window, cx)
1884            }
1885            Some(Operator::Sneak { first_char }) => {
1886                if let Some(first_char) = first_char {
1887                    if let Some(second_char) = text.chars().next() {
1888                        let sneak = Motion::Sneak {
1889                            first_char,
1890                            second_char,
1891                            smartcase: VimSettings::get_global(cx).use_smartcase_find,
1892                        };
1893                        Vim::globals(cx).last_find = Some(sneak.clone());
1894                        self.motion(sneak, window, cx)
1895                    }
1896                } else {
1897                    let first_char = text.chars().next();
1898                    self.pop_operator(window, cx);
1899                    self.push_operator(Operator::Sneak { first_char }, window, cx);
1900                }
1901            }
1902            Some(Operator::SneakBackward { first_char }) => {
1903                if let Some(first_char) = first_char {
1904                    if let Some(second_char) = text.chars().next() {
1905                        let sneak = Motion::SneakBackward {
1906                            first_char,
1907                            second_char,
1908                            smartcase: VimSettings::get_global(cx).use_smartcase_find,
1909                        };
1910                        Vim::globals(cx).last_find = Some(sneak.clone());
1911                        self.motion(sneak, window, cx)
1912                    }
1913                } else {
1914                    let first_char = text.chars().next();
1915                    self.pop_operator(window, cx);
1916                    self.push_operator(Operator::SneakBackward { first_char }, window, cx);
1917                }
1918            }
1919            Some(Operator::Replace) => match self.mode {
1920                Mode::Normal => self.normal_replace(text, window, cx),
1921                Mode::Visual | Mode::VisualLine | Mode::VisualBlock => {
1922                    self.visual_replace(text, window, cx)
1923                }
1924                Mode::HelixNormal => self.helix_replace(&text, window, cx),
1925                _ => self.clear_operator(window, cx),
1926            },
1927            Some(Operator::Digraph { first_char }) => {
1928                if let Some(first_char) = first_char {
1929                    if let Some(second_char) = text.chars().next() {
1930                        self.insert_digraph(first_char, second_char, window, cx);
1931                    }
1932                } else {
1933                    let first_char = text.chars().next();
1934                    self.pop_operator(window, cx);
1935                    self.push_operator(Operator::Digraph { first_char }, window, cx);
1936                }
1937            }
1938            Some(Operator::Literal { prefix }) => {
1939                self.handle_literal_input(prefix.unwrap_or_default(), &text, window, cx)
1940            }
1941            Some(Operator::AddSurrounds { target }) => match self.mode {
1942                Mode::Normal => {
1943                    if let Some(target) = target {
1944                        self.add_surrounds(text, target, window, cx);
1945                        self.clear_operator(window, cx);
1946                    }
1947                }
1948                Mode::Visual | Mode::VisualLine | Mode::VisualBlock => {
1949                    self.add_surrounds(text, SurroundsType::Selection, window, cx);
1950                    self.clear_operator(window, cx);
1951                }
1952                _ => self.clear_operator(window, cx),
1953            },
1954            Some(Operator::ChangeSurrounds { target, opening }) => match self.mode {
1955                Mode::Normal => {
1956                    if let Some(target) = target {
1957                        self.change_surrounds(text, target, opening, window, cx);
1958                        self.clear_operator(window, cx);
1959                    }
1960                }
1961                _ => self.clear_operator(window, cx),
1962            },
1963            Some(Operator::DeleteSurrounds) => match self.mode {
1964                Mode::Normal => {
1965                    self.delete_surrounds(text, window, cx);
1966                    self.clear_operator(window, cx);
1967                }
1968                _ => self.clear_operator(window, cx),
1969            },
1970            Some(Operator::HelixSurroundAdd) => match self.mode {
1971                Mode::HelixNormal | Mode::HelixSelect => {
1972                    self.update_editor(cx, |_, editor, cx| {
1973                        editor.change_selections(Default::default(), window, cx, |s| {
1974                            s.move_with(&mut |map, selection| {
1975                                if selection.is_empty() {
1976                                    selection.end = movement::right(map, selection.start);
1977                                }
1978                            });
1979                        });
1980                    });
1981                    self.helix_surround_add(&text, window, cx);
1982                    self.switch_mode(Mode::HelixNormal, false, window, cx);
1983                    self.clear_operator(window, cx);
1984                }
1985                _ => self.clear_operator(window, cx),
1986            },
1987            Some(Operator::HelixSurroundReplace {
1988                replaced_char: Some(old),
1989            }) => match self.mode {
1990                Mode::HelixNormal | Mode::HelixSelect => {
1991                    if let Some(new_char) = text.chars().next() {
1992                        self.helix_surround_replace(old, new_char, window, cx);
1993                    }
1994                    self.clear_operator(window, cx);
1995                }
1996                _ => self.clear_operator(window, cx),
1997            },
1998            Some(Operator::HelixSurroundReplace {
1999                replaced_char: None,
2000            }) => match self.mode {
2001                Mode::HelixNormal | Mode::HelixSelect => {
2002                    if let Some(ch) = text.chars().next() {
2003                        self.pop_operator(window, cx);
2004                        self.push_operator(
2005                            Operator::HelixSurroundReplace {
2006                                replaced_char: Some(ch),
2007                            },
2008                            window,
2009                            cx,
2010                        );
2011                    }
2012                }
2013                _ => self.clear_operator(window, cx),
2014            },
2015            Some(Operator::HelixSurroundDelete) => match self.mode {
2016                Mode::HelixNormal | Mode::HelixSelect => {
2017                    if let Some(ch) = text.chars().next() {
2018                        self.helix_surround_delete(ch, window, cx);
2019                    }
2020                    self.clear_operator(window, cx);
2021                }
2022                _ => self.clear_operator(window, cx),
2023            },
2024            Some(Operator::Mark) => self.create_mark(text, window, cx),
2025            Some(Operator::RecordRegister) => {
2026                self.record_register(text.chars().next().unwrap(), window, cx)
2027            }
2028            Some(Operator::ReplayRegister) => {
2029                self.replay_register(text.chars().next().unwrap(), window, cx)
2030            }
2031            Some(Operator::Register) => match self.mode {
2032                Mode::Insert => {
2033                    self.update_editor(cx, |_, editor, cx| {
2034                        if let Some(register) = Vim::update_globals(cx, |globals, cx| {
2035                            globals.read_register(text.chars().next(), Some(editor), cx)
2036                        }) {
2037                            editor.do_paste(
2038                                &register.text.to_string(),
2039                                register.clipboard_selections,
2040                                false,
2041                                window,
2042                                cx,
2043                            )
2044                        }
2045                    });
2046                    self.clear_operator(window, cx);
2047                }
2048                _ => {
2049                    self.select_register(text, window, cx);
2050                }
2051            },
2052            Some(Operator::Jump { line }) => self.jump(text, line, true, window, cx),
2053            _ => {
2054                if self.mode == Mode::Replace {
2055                    self.multi_replace(text, window, cx)
2056                }
2057
2058                if self.mode == Mode::Normal {
2059                    self.update_editor(cx, |_, editor, cx| {
2060                        editor.accept_edit_prediction(
2061                            &editor::actions::AcceptEditPrediction {},
2062                            window,
2063                            cx,
2064                        );
2065                    });
2066                }
2067            }
2068        }
2069    }
2070
2071    fn sync_vim_settings(&mut self, window: &mut Window, cx: &mut Context<Self>) {
2072        let state = self.state_for_editor_settings(cx);
2073        self.update_editor(cx, |_, editor, cx| {
2074            Vim::sync_vim_settings_to_editor(&state, editor, window, cx);
2075        });
2076        cx.notify()
2077    }
2078
2079    fn state_for_editor_settings(&self, cx: &App) -> VimEditorSettingsState {
2080        VimEditorSettingsState {
2081            cursor_shape: self.cursor_shape(cx),
2082            clip_at_line_ends: self.clip_at_line_ends(),
2083            collapse_matches: !HelixModeSetting::get_global(cx).0,
2084            input_enabled: self.editor_input_enabled(),
2085            expects_character_input: self.expects_character_input(),
2086            autoindent: self.should_autoindent(),
2087            cursor_offset_on_selection: self.mode.is_visual() || self.mode.is_helix(),
2088            line_mode: matches!(self.mode, Mode::VisualLine),
2089            hide_edit_predictions: !matches!(self.mode, Mode::Insert | Mode::Replace),
2090        }
2091    }
2092
2093    fn sync_vim_settings_to_editor(
2094        state: &VimEditorSettingsState,
2095        editor: &mut Editor,
2096        window: &mut Window,
2097        cx: &mut Context<Editor>,
2098    ) {
2099        editor.set_cursor_shape(state.cursor_shape, cx);
2100        editor.set_clip_at_line_ends(state.clip_at_line_ends, cx);
2101        editor.set_collapse_matches(state.collapse_matches);
2102        editor.set_input_enabled(state.input_enabled);
2103        editor.set_expects_character_input(state.expects_character_input);
2104        editor.set_autoindent(state.autoindent);
2105        editor.set_cursor_offset_on_selection(state.cursor_offset_on_selection);
2106        editor.selections.set_line_mode(state.line_mode);
2107        editor.set_edit_predictions_hidden_for_vim_mode(state.hide_edit_predictions, window, cx);
2108    }
2109
2110    fn set_status_label(&mut self, label: impl Into<SharedString>, cx: &mut Context<Editor>) {
2111        self.status_label = Some(label.into());
2112        cx.notify();
2113    }
2114}
2115
2116struct VimEditorSettingsState {
2117    cursor_shape: CursorShape,
2118    clip_at_line_ends: bool,
2119    collapse_matches: bool,
2120    input_enabled: bool,
2121    expects_character_input: bool,
2122    autoindent: bool,
2123    cursor_offset_on_selection: bool,
2124    line_mode: bool,
2125    hide_edit_predictions: bool,
2126}
2127
2128#[derive(Clone, RegisterSetting)]
2129struct VimSettings {
2130    pub default_mode: Mode,
2131    pub toggle_relative_line_numbers: bool,
2132    pub use_system_clipboard: settings::UseSystemClipboard,
2133    pub use_smartcase_find: bool,
2134    pub gdefault: bool,
2135    pub custom_digraphs: HashMap<String, Arc<str>>,
2136    pub highlight_on_yank_duration: u64,
2137    pub cursor_shape: CursorShapeSettings,
2138}
2139
2140/// Cursor shape configuration for insert mode.
2141#[derive(Copy, Clone, Debug, PartialEq, Eq)]
2142pub enum InsertModeCursorShape {
2143    /// Inherit cursor shape from the editor's base cursor_shape setting.
2144    /// This allows users to set their preferred editor cursor and have
2145    /// it automatically apply to vim insert mode.
2146    Inherit,
2147    /// Use an explicit cursor shape for insert mode.
2148    Explicit(CursorShape),
2149}
2150
2151/// The settings for cursor shape.
2152#[derive(Copy, Clone, Debug, PartialEq, Eq)]
2153pub struct CursorShapeSettings {
2154    /// Cursor shape for the normal mode.
2155    ///
2156    /// Default: block
2157    pub normal: CursorShape,
2158    /// Cursor shape for the replace mode.
2159    ///
2160    /// Default: underline
2161    pub replace: CursorShape,
2162    /// Cursor shape for the visual mode.
2163    ///
2164    /// Default: block
2165    pub visual: CursorShape,
2166    /// Cursor shape for the insert mode.
2167    ///
2168    /// Default: Inherit (follows editor.cursor_shape)
2169    pub insert: InsertModeCursorShape,
2170}
2171
2172impl From<settings::VimInsertModeCursorShape> for InsertModeCursorShape {
2173    fn from(shape: settings::VimInsertModeCursorShape) -> Self {
2174        match shape {
2175            settings::VimInsertModeCursorShape::Inherit => InsertModeCursorShape::Inherit,
2176            settings::VimInsertModeCursorShape::Bar => {
2177                InsertModeCursorShape::Explicit(CursorShape::Bar)
2178            }
2179            settings::VimInsertModeCursorShape::Block => {
2180                InsertModeCursorShape::Explicit(CursorShape::Block)
2181            }
2182            settings::VimInsertModeCursorShape::Underline => {
2183                InsertModeCursorShape::Explicit(CursorShape::Underline)
2184            }
2185            settings::VimInsertModeCursorShape::Hollow => {
2186                InsertModeCursorShape::Explicit(CursorShape::Hollow)
2187            }
2188        }
2189    }
2190}
2191
2192impl From<settings::CursorShapeSettings> for CursorShapeSettings {
2193    fn from(settings: settings::CursorShapeSettings) -> Self {
2194        Self {
2195            normal: settings.normal.unwrap().into(),
2196            replace: settings.replace.unwrap().into(),
2197            visual: settings.visual.unwrap().into(),
2198            insert: settings.insert.unwrap().into(),
2199        }
2200    }
2201}
2202
2203impl From<settings::ModeContent> for Mode {
2204    fn from(mode: ModeContent) -> Self {
2205        match mode {
2206            ModeContent::Normal => Self::Normal,
2207            ModeContent::Insert => Self::Insert,
2208        }
2209    }
2210}
2211
2212impl Settings for VimSettings {
2213    fn from_settings(content: &settings::SettingsContent) -> Self {
2214        let vim = content.vim.clone().unwrap();
2215        Self {
2216            default_mode: vim.default_mode.unwrap().into(),
2217            toggle_relative_line_numbers: vim.toggle_relative_line_numbers.unwrap(),
2218            use_system_clipboard: vim.use_system_clipboard.unwrap(),
2219            use_smartcase_find: vim.use_smartcase_find.unwrap(),
2220            gdefault: vim.gdefault.unwrap(),
2221            custom_digraphs: vim.custom_digraphs.unwrap(),
2222            highlight_on_yank_duration: vim.highlight_on_yank_duration.unwrap(),
2223            cursor_shape: vim.cursor_shape.unwrap().into(),
2224        }
2225    }
2226}