1use std::sync::Arc;
   2
   3use collections::HashMap;
   4use editor::{
   5    display_map::{DisplaySnapshot, ToDisplayPoint},
   6    movement,
   7    scroll::Autoscroll,
   8    Bias, DisplayPoint, Editor,
   9};
  10use gpui::{actions, ViewContext, WindowContext};
  11use language::{Point, Selection, SelectionGoal};
  12use multi_buffer::MultiBufferRow;
  13use search::BufferSearchBar;
  14use util::ResultExt;
  15use workspace::{searchable::Direction, Workspace};
  16
  17use crate::{
  18    motion::{start_of_line, Motion},
  19    normal::substitute::substitute,
  20    object::Object,
  21    state::{Mode, Operator},
  22    utils::{copy_selections_content, yank_selections_content},
  23    Vim,
  24};
  25
  26actions!(
  27    vim,
  28    [
  29        ToggleVisual,
  30        ToggleVisualLine,
  31        ToggleVisualBlock,
  32        VisualDelete,
  33        VisualYank,
  34        OtherEnd,
  35        SelectNext,
  36        SelectPrevious,
  37        SelectNextMatch,
  38        SelectPreviousMatch,
  39    ]
  40);
  41
  42pub fn register(workspace: &mut Workspace, _: &mut ViewContext<Workspace>) {
  43    workspace.register_action(|_, _: &ToggleVisual, cx: &mut ViewContext<Workspace>| {
  44        toggle_mode(Mode::Visual, cx)
  45    });
  46    workspace.register_action(|_, _: &ToggleVisualLine, cx: &mut ViewContext<Workspace>| {
  47        toggle_mode(Mode::VisualLine, cx)
  48    });
  49    workspace.register_action(
  50        |_, _: &ToggleVisualBlock, cx: &mut ViewContext<Workspace>| {
  51            toggle_mode(Mode::VisualBlock, cx)
  52        },
  53    );
  54    workspace.register_action(other_end);
  55    workspace.register_action(|_, _: &VisualDelete, cx| {
  56        Vim::update(cx, |vim, cx| {
  57            vim.record_current_action(cx);
  58            delete(vim, cx);
  59        });
  60    });
  61    workspace.register_action(|_, _: &VisualYank, cx| {
  62        Vim::update(cx, |vim, cx| {
  63            yank(vim, cx);
  64        });
  65    });
  66
  67    workspace.register_action(select_next);
  68    workspace.register_action(select_previous);
  69    workspace.register_action(|workspace, _: &SelectNextMatch, cx| {
  70        Vim::update(cx, |vim, cx| {
  71            select_match(workspace, vim, Direction::Next, cx);
  72        });
  73    });
  74    workspace.register_action(|workspace, _: &SelectPreviousMatch, cx| {
  75        Vim::update(cx, |vim, cx| {
  76            select_match(workspace, vim, Direction::Prev, cx);
  77        });
  78    });
  79}
  80
  81pub fn visual_motion(motion: Motion, times: Option<usize>, cx: &mut WindowContext) {
  82    Vim::update(cx, |vim, cx| {
  83        vim.update_active_editor(cx, |vim, editor, cx| {
  84            let text_layout_details = editor.text_layout_details(cx);
  85            if vim.state().mode == Mode::VisualBlock
  86                && !matches!(
  87                    motion,
  88                    Motion::EndOfLine {
  89                        display_lines: false
  90                    }
  91                )
  92            {
  93                let is_up_or_down = matches!(motion, Motion::Up { .. } | Motion::Down { .. });
  94                visual_block_motion(is_up_or_down, editor, cx, |map, point, goal| {
  95                    motion.move_point(map, point, goal, times, &text_layout_details)
  96                })
  97            } else {
  98                editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
  99                    s.move_with(|map, selection| {
 100                        let was_reversed = selection.reversed;
 101                        let mut current_head = selection.head();
 102
 103                        // our motions assume the current character is after the cursor,
 104                        // but in (forward) visual mode the current character is just
 105                        // before the end of the selection.
 106
 107                        // If the file ends with a newline (which is common) we don't do this.
 108                        // so that if you go to the end of such a file you can use "up" to go
 109                        // to the previous line and have it work somewhat as expected.
 110                        #[allow(clippy::nonminimal_bool)]
 111                        if !selection.reversed
 112                            && !selection.is_empty()
 113                            && !(selection.end.column() == 0 && selection.end == map.max_point())
 114                        {
 115                            current_head = movement::left(map, selection.end)
 116                        }
 117
 118                        let Some((new_head, goal)) = motion.move_point(
 119                            map,
 120                            current_head,
 121                            selection.goal,
 122                            times,
 123                            &text_layout_details,
 124                        ) else {
 125                            return;
 126                        };
 127
 128                        selection.set_head(new_head, goal);
 129
 130                        // ensure the current character is included in the selection.
 131                        if !selection.reversed {
 132                            let next_point = if vim.state().mode == Mode::VisualBlock {
 133                                movement::saturating_right(map, selection.end)
 134                            } else {
 135                                movement::right(map, selection.end)
 136                            };
 137
 138                            if !(next_point.column() == 0 && next_point == map.max_point()) {
 139                                selection.end = next_point;
 140                            }
 141                        }
 142
 143                        // vim always ensures the anchor character stays selected.
 144                        // if our selection has reversed, we need to move the opposite end
 145                        // to ensure the anchor is still selected.
 146                        if was_reversed && !selection.reversed {
 147                            selection.start = movement::left(map, selection.start);
 148                        } else if !was_reversed && selection.reversed {
 149                            selection.end = movement::right(map, selection.end);
 150                        }
 151                    })
 152                });
 153            }
 154        });
 155    });
 156}
 157
 158pub fn visual_block_motion(
 159    preserve_goal: bool,
 160    editor: &mut Editor,
 161    cx: &mut ViewContext<Editor>,
 162    mut move_selection: impl FnMut(
 163        &DisplaySnapshot,
 164        DisplayPoint,
 165        SelectionGoal,
 166    ) -> Option<(DisplayPoint, SelectionGoal)>,
 167) {
 168    let text_layout_details = editor.text_layout_details(cx);
 169    editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
 170        let map = &s.display_map();
 171        let mut head = s.newest_anchor().head().to_display_point(map);
 172        let mut tail = s.oldest_anchor().tail().to_display_point(map);
 173
 174        let mut head_x = map.x_for_display_point(head, &text_layout_details);
 175        let mut tail_x = map.x_for_display_point(tail, &text_layout_details);
 176
 177        let (start, end) = match s.newest_anchor().goal {
 178            SelectionGoal::HorizontalRange { start, end } if preserve_goal => (start, end),
 179            SelectionGoal::HorizontalPosition(start) if preserve_goal => (start, start),
 180            _ => (tail_x.0, head_x.0),
 181        };
 182        let mut goal = SelectionGoal::HorizontalRange { start, end };
 183
 184        let was_reversed = tail_x > head_x;
 185        if !was_reversed && !preserve_goal {
 186            head = movement::saturating_left(map, head);
 187        }
 188
 189        let Some((new_head, _)) = move_selection(&map, head, goal) else {
 190            return;
 191        };
 192        head = new_head;
 193        head_x = map.x_for_display_point(head, &text_layout_details);
 194
 195        let is_reversed = tail_x > head_x;
 196        if was_reversed && !is_reversed {
 197            tail = movement::saturating_left(map, tail);
 198            tail_x = map.x_for_display_point(tail, &text_layout_details);
 199        } else if !was_reversed && is_reversed {
 200            tail = movement::saturating_right(map, tail);
 201            tail_x = map.x_for_display_point(tail, &text_layout_details);
 202        }
 203        if !is_reversed && !preserve_goal {
 204            head = movement::saturating_right(map, head);
 205            head_x = map.x_for_display_point(head, &text_layout_details);
 206        }
 207
 208        let positions = if is_reversed {
 209            head_x..tail_x
 210        } else {
 211            tail_x..head_x
 212        };
 213
 214        if !preserve_goal {
 215            goal = SelectionGoal::HorizontalRange {
 216                start: positions.start.0,
 217                end: positions.end.0,
 218            };
 219        }
 220
 221        let mut selections = Vec::new();
 222        let mut row = tail.row();
 223
 224        loop {
 225            let laid_out_line = map.layout_row(row, &text_layout_details);
 226            let start = DisplayPoint::new(
 227                row,
 228                laid_out_line.closest_index_for_x(positions.start) as u32,
 229            );
 230            let mut end =
 231                DisplayPoint::new(row, laid_out_line.closest_index_for_x(positions.end) as u32);
 232            if end <= start {
 233                if start.column() == map.line_len(start.row()) {
 234                    end = start;
 235                } else {
 236                    end = movement::saturating_right(map, start);
 237                }
 238            }
 239
 240            if positions.start <= laid_out_line.width {
 241                let selection = Selection {
 242                    id: s.new_selection_id(),
 243                    start: start.to_point(map),
 244                    end: end.to_point(map),
 245                    reversed: is_reversed,
 246                    goal,
 247                };
 248
 249                selections.push(selection);
 250            }
 251            if row == head.row() {
 252                break;
 253            }
 254            if tail.row() > head.row() {
 255                row.0 -= 1
 256            } else {
 257                row.0 += 1
 258            }
 259        }
 260
 261        s.select(selections);
 262    })
 263}
 264
 265pub fn visual_object(object: Object, cx: &mut WindowContext) {
 266    Vim::update(cx, |vim, cx| {
 267        if let Some(Operator::Object { around }) = vim.active_operator() {
 268            vim.pop_operator(cx);
 269            let current_mode = vim.state().mode;
 270            let target_mode = object.target_visual_mode(current_mode);
 271            if target_mode != current_mode {
 272                vim.switch_mode(target_mode, true, cx);
 273            }
 274
 275            vim.update_active_editor(cx, |_, editor, cx| {
 276                editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
 277                    s.move_with(|map, selection| {
 278                        let mut mut_selection = selection.clone();
 279
 280                        // all our motions assume that the current character is
 281                        // after the cursor; however in the case of a visual selection
 282                        // the current character is before the cursor.
 283                        // But this will affect the judgment of the html tag
 284                        // so the html tag needs to skip this logic.
 285                        if !selection.reversed && object != Object::Tag {
 286                            mut_selection.set_head(
 287                                movement::left(map, mut_selection.head()),
 288                                mut_selection.goal,
 289                            );
 290                        }
 291
 292                        if let Some(range) = object.range(map, mut_selection, around) {
 293                            if !range.is_empty() {
 294                                let expand_both_ways = object.always_expands_both_ways()
 295                                    || selection.is_empty()
 296                                    || movement::right(map, selection.start) == selection.end;
 297
 298                                if expand_both_ways {
 299                                    selection.start = range.start;
 300                                    selection.end = range.end;
 301                                } else if selection.reversed {
 302                                    selection.start = range.start;
 303                                } else {
 304                                    selection.end = range.end;
 305                                }
 306                            }
 307
 308                            // In the visual selection result of a paragraph object, the cursor is
 309                            // placed at the start of the last line. And in the visual mode, the
 310                            // selection end is located after the end character. So, adjustment of
 311                            // selection end is needed.
 312                            //
 313                            // We don't do this adjustment for a one-line blank paragraph since the
 314                            // trailing newline is included in its selection from the beginning.
 315                            if object == Object::Paragraph && range.start != range.end {
 316                                let row_of_selection_end_line = selection.end.to_point(map).row;
 317                                let new_selection_end = if map
 318                                    .buffer_snapshot
 319                                    .line_len(MultiBufferRow(row_of_selection_end_line))
 320                                    == 0
 321                                {
 322                                    Point::new(row_of_selection_end_line + 1, 0)
 323                                } else {
 324                                    Point::new(row_of_selection_end_line, 1)
 325                                };
 326                                selection.end = new_selection_end.to_display_point(map);
 327                            }
 328                        }
 329                    });
 330                });
 331            });
 332        }
 333    });
 334}
 335
 336fn toggle_mode(mode: Mode, cx: &mut ViewContext<Workspace>) {
 337    Vim::update(cx, |vim, cx| {
 338        if vim.state().mode == mode {
 339            vim.switch_mode(Mode::Normal, false, cx);
 340        } else {
 341            vim.switch_mode(mode, false, cx);
 342        }
 343    })
 344}
 345
 346pub fn other_end(_: &mut Workspace, _: &OtherEnd, cx: &mut ViewContext<Workspace>) {
 347    Vim::update(cx, |vim, cx| {
 348        vim.update_active_editor(cx, |_, editor, cx| {
 349            editor.change_selections(None, cx, |s| {
 350                s.move_with(|_, selection| {
 351                    selection.reversed = !selection.reversed;
 352                })
 353            })
 354        })
 355    });
 356}
 357
 358pub fn delete(vim: &mut Vim, cx: &mut WindowContext) {
 359    vim.update_active_editor(cx, |vim, editor, cx| {
 360        let mut original_columns: HashMap<_, _> = Default::default();
 361        let line_mode = editor.selections.line_mode;
 362
 363        editor.transact(cx, |editor, cx| {
 364            editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
 365                s.move_with(|map, selection| {
 366                    if line_mode {
 367                        let mut position = selection.head();
 368                        if !selection.reversed {
 369                            position = movement::left(map, position);
 370                        }
 371                        original_columns.insert(selection.id, position.to_point(map).column);
 372                    }
 373                    selection.goal = SelectionGoal::None;
 374                });
 375            });
 376            copy_selections_content(vim, editor, line_mode, cx);
 377            editor.insert("", cx);
 378
 379            // Fixup cursor position after the deletion
 380            editor.set_clip_at_line_ends(true, cx);
 381            editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
 382                s.move_with(|map, selection| {
 383                    let mut cursor = selection.head().to_point(map);
 384
 385                    if let Some(column) = original_columns.get(&selection.id) {
 386                        cursor.column = *column
 387                    }
 388                    let cursor = map.clip_point(cursor.to_display_point(map), Bias::Left);
 389                    selection.collapse_to(cursor, selection.goal)
 390                });
 391                if vim.state().mode == Mode::VisualBlock {
 392                    s.select_anchors(vec![s.first_anchor()])
 393                }
 394            });
 395        })
 396    });
 397    vim.switch_mode(Mode::Normal, true, cx);
 398}
 399
 400pub fn yank(vim: &mut Vim, cx: &mut WindowContext) {
 401    vim.update_active_editor(cx, |vim, editor, cx| {
 402        let line_mode = editor.selections.line_mode;
 403        yank_selections_content(vim, editor, line_mode, cx);
 404        editor.change_selections(None, cx, |s| {
 405            s.move_with(|map, selection| {
 406                if line_mode {
 407                    selection.start = start_of_line(map, false, selection.start);
 408                };
 409                selection.collapse_to(selection.start, SelectionGoal::None)
 410            });
 411            if vim.state().mode == Mode::VisualBlock {
 412                s.select_anchors(vec![s.first_anchor()])
 413            }
 414        });
 415    });
 416    vim.switch_mode(Mode::Normal, true, cx);
 417}
 418
 419pub(crate) fn visual_replace(text: Arc<str>, cx: &mut WindowContext) {
 420    Vim::update(cx, |vim, cx| {
 421        vim.stop_recording();
 422        vim.update_active_editor(cx, |_, editor, cx| {
 423            editor.transact(cx, |editor, cx| {
 424                let (display_map, selections) = editor.selections.all_adjusted_display(cx);
 425
 426                // Selections are biased right at the start. So we need to store
 427                // anchors that are biased left so that we can restore the selections
 428                // after the change
 429                let stable_anchors = editor
 430                    .selections
 431                    .disjoint_anchors()
 432                    .into_iter()
 433                    .map(|selection| {
 434                        let start = selection.start.bias_left(&display_map.buffer_snapshot);
 435                        start..start
 436                    })
 437                    .collect::<Vec<_>>();
 438
 439                let mut edits = Vec::new();
 440                for selection in selections.iter() {
 441                    let selection = selection.clone();
 442                    for row_range in
 443                        movement::split_display_range_by_lines(&display_map, selection.range())
 444                    {
 445                        let range = row_range.start.to_offset(&display_map, Bias::Right)
 446                            ..row_range.end.to_offset(&display_map, Bias::Right);
 447                        let text = text.repeat(range.len());
 448                        edits.push((range, text));
 449                    }
 450                }
 451
 452                editor.buffer().update(cx, |buffer, cx| {
 453                    buffer.edit(edits, None, cx);
 454                });
 455                editor.change_selections(None, cx, |s| s.select_ranges(stable_anchors));
 456            });
 457        });
 458        vim.switch_mode(Mode::Normal, false, cx);
 459    });
 460}
 461
 462pub fn select_next(_: &mut Workspace, _: &SelectNext, cx: &mut ViewContext<Workspace>) {
 463    Vim::update(cx, |vim, cx| {
 464        let count =
 465            vim.take_count(cx)
 466                .unwrap_or_else(|| if vim.state().mode.is_visual() { 1 } else { 2 });
 467        vim.update_active_editor(cx, |_, editor, cx| {
 468            for _ in 0..count {
 469                if editor
 470                    .select_next(&Default::default(), cx)
 471                    .log_err()
 472                    .is_none()
 473                {
 474                    break;
 475                }
 476            }
 477        })
 478    });
 479}
 480
 481pub fn select_previous(_: &mut Workspace, _: &SelectPrevious, cx: &mut ViewContext<Workspace>) {
 482    Vim::update(cx, |vim, cx| {
 483        let count =
 484            vim.take_count(cx)
 485                .unwrap_or_else(|| if vim.state().mode.is_visual() { 1 } else { 2 });
 486        vim.update_active_editor(cx, |_, editor, cx| {
 487            for _ in 0..count {
 488                if editor
 489                    .select_previous(&Default::default(), cx)
 490                    .log_err()
 491                    .is_none()
 492                {
 493                    break;
 494                }
 495            }
 496        })
 497    });
 498}
 499
 500pub fn select_match(
 501    workspace: &mut Workspace,
 502    vim: &mut Vim,
 503    direction: Direction,
 504    cx: &mut WindowContext,
 505) {
 506    let count = vim.take_count(cx).unwrap_or(1);
 507    let pane = workspace.active_pane().clone();
 508    let vim_is_normal = vim.state().mode == Mode::Normal;
 509    let mut start_selection = 0usize;
 510    let mut end_selection = 0usize;
 511
 512    vim.update_active_editor(cx, |_, editor, _| {
 513        editor.set_collapse_matches(false);
 514    });
 515    if vim_is_normal {
 516        pane.update(cx, |pane, cx| {
 517            if let Some(search_bar) = pane.toolbar().read(cx).item_of_type::<BufferSearchBar>() {
 518                search_bar.update(cx, |search_bar, cx| {
 519                    if !search_bar.has_active_match() || !search_bar.show(cx) {
 520                        return;
 521                    }
 522                    // without update_match_index there is a bug when the cursor is before the first match
 523                    search_bar.update_match_index(cx);
 524                    search_bar.select_match(direction.opposite(), 1, cx);
 525                });
 526            }
 527        });
 528    }
 529    vim.update_active_editor(cx, |_, editor, cx| {
 530        let latest = editor.selections.newest::<usize>(cx);
 531        start_selection = latest.start;
 532        end_selection = latest.end;
 533    });
 534
 535    let mut match_exists = false;
 536    pane.update(cx, |pane, cx| {
 537        if let Some(search_bar) = pane.toolbar().read(cx).item_of_type::<BufferSearchBar>() {
 538            search_bar.update(cx, |search_bar, cx| {
 539                search_bar.update_match_index(cx);
 540                search_bar.select_match(direction, count, cx);
 541                match_exists = search_bar.match_exists(cx);
 542            });
 543        }
 544    });
 545    if !match_exists {
 546        vim.clear_operator(cx);
 547        vim.stop_replaying();
 548        return;
 549    }
 550    vim.update_active_editor(cx, |_, editor, cx| {
 551        let latest = editor.selections.newest::<usize>(cx);
 552        if vim_is_normal {
 553            start_selection = latest.start;
 554            end_selection = latest.end;
 555        } else {
 556            start_selection = start_selection.min(latest.start);
 557            end_selection = end_selection.max(latest.end);
 558        }
 559        if direction == Direction::Prev {
 560            std::mem::swap(&mut start_selection, &mut end_selection);
 561        }
 562        editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
 563            s.select_ranges([start_selection..end_selection]);
 564        });
 565        editor.set_collapse_matches(true);
 566    });
 567
 568    match vim.maybe_pop_operator() {
 569        Some(Operator::Change) => substitute(vim, None, false, cx),
 570        Some(Operator::Delete) => {
 571            vim.stop_recording();
 572            delete(vim, cx)
 573        }
 574        Some(Operator::Yank) => yank(vim, cx),
 575        _ => {} // Ignoring other operators
 576    }
 577}
 578
 579#[cfg(test)]
 580mod test {
 581    use indoc::indoc;
 582    use workspace::item::Item;
 583
 584    use crate::{
 585        state::Mode,
 586        test::{NeovimBackedTestContext, VimTestContext},
 587    };
 588
 589    #[gpui::test]
 590    async fn test_enter_visual_mode(cx: &mut gpui::TestAppContext) {
 591        let mut cx = NeovimBackedTestContext::new(cx).await;
 592
 593        cx.set_shared_state(indoc! {
 594            "The ˇquick brown
 595            fox jumps over
 596            the lazy dog"
 597        })
 598        .await;
 599        let cursor = cx.update_editor(|editor, cx| editor.pixel_position_of_cursor(cx));
 600
 601        // entering visual mode should select the character
 602        // under cursor
 603        cx.simulate_shared_keystrokes("v").await;
 604        cx.shared_state()
 605            .await
 606            .assert_eq(indoc! { "The «qˇ»uick brown
 607            fox jumps over
 608            the lazy dog"});
 609        cx.update_editor(|editor, cx| assert_eq!(cursor, editor.pixel_position_of_cursor(cx)));
 610
 611        // forwards motions should extend the selection
 612        cx.simulate_shared_keystrokes("w j").await;
 613        cx.shared_state().await.assert_eq(indoc! { "The «quick brown
 614            fox jumps oˇ»ver
 615            the lazy dog"});
 616
 617        cx.simulate_shared_keystrokes("escape").await;
 618        cx.shared_state().await.assert_eq(indoc! { "The quick brown
 619            fox jumps ˇover
 620            the lazy dog"});
 621
 622        // motions work backwards
 623        cx.simulate_shared_keystrokes("v k b").await;
 624        cx.shared_state()
 625            .await
 626            .assert_eq(indoc! { "The «ˇquick brown
 627            fox jumps o»ver
 628            the lazy dog"});
 629
 630        // works on empty lines
 631        cx.set_shared_state(indoc! {"
 632            a
 633            ˇ
 634            b
 635            "})
 636            .await;
 637        let cursor = cx.update_editor(|editor, cx| editor.pixel_position_of_cursor(cx));
 638        cx.simulate_shared_keystrokes("v").await;
 639        cx.shared_state().await.assert_eq(indoc! {"
 640            a
 641            «
 642            ˇ»b
 643        "});
 644        cx.update_editor(|editor, cx| assert_eq!(cursor, editor.pixel_position_of_cursor(cx)));
 645
 646        // toggles off again
 647        cx.simulate_shared_keystrokes("v").await;
 648        cx.shared_state().await.assert_eq(indoc! {"
 649            a
 650            ˇ
 651            b
 652            "});
 653
 654        // works at the end of a document
 655        cx.set_shared_state(indoc! {"
 656            a
 657            b
 658            ˇ"})
 659            .await;
 660
 661        cx.simulate_shared_keystrokes("v").await;
 662        cx.shared_state().await.assert_eq(indoc! {"
 663            a
 664            b
 665            ˇ"});
 666    }
 667
 668    #[gpui::test]
 669    async fn test_enter_visual_line_mode(cx: &mut gpui::TestAppContext) {
 670        let mut cx = NeovimBackedTestContext::new(cx).await;
 671
 672        cx.set_shared_state(indoc! {
 673            "The ˇquick brown
 674            fox jumps over
 675            the lazy dog"
 676        })
 677        .await;
 678        cx.simulate_shared_keystrokes("shift-v").await;
 679        cx.shared_state()
 680            .await
 681            .assert_eq(indoc! { "The «qˇ»uick brown
 682            fox jumps over
 683            the lazy dog"});
 684        cx.simulate_shared_keystrokes("x").await;
 685        cx.shared_state().await.assert_eq(indoc! { "fox ˇjumps over
 686        the lazy dog"});
 687
 688        // it should work on empty lines
 689        cx.set_shared_state(indoc! {"
 690            a
 691            ˇ
 692            b"})
 693            .await;
 694        cx.simulate_shared_keystrokes("shift-v").await;
 695        cx.shared_state().await.assert_eq(indoc! {"
 696            a
 697            «
 698            ˇ»b"});
 699        cx.simulate_shared_keystrokes("x").await;
 700        cx.shared_state().await.assert_eq(indoc! {"
 701            a
 702            ˇb"});
 703
 704        // it should work at the end of the document
 705        cx.set_shared_state(indoc! {"
 706            a
 707            b
 708            ˇ"})
 709            .await;
 710        let cursor = cx.update_editor(|editor, cx| editor.pixel_position_of_cursor(cx));
 711        cx.simulate_shared_keystrokes("shift-v").await;
 712        cx.shared_state().await.assert_eq(indoc! {"
 713            a
 714            b
 715            ˇ"});
 716        cx.update_editor(|editor, cx| assert_eq!(cursor, editor.pixel_position_of_cursor(cx)));
 717        cx.simulate_shared_keystrokes("x").await;
 718        cx.shared_state().await.assert_eq(indoc! {"
 719            a
 720            ˇb"});
 721    }
 722
 723    #[gpui::test]
 724    async fn test_visual_delete(cx: &mut gpui::TestAppContext) {
 725        let mut cx = NeovimBackedTestContext::new(cx).await;
 726
 727        cx.simulate("v w", "The quick ˇbrown")
 728            .await
 729            .assert_matches();
 730
 731        cx.simulate("v w x", "The quick ˇbrown")
 732            .await
 733            .assert_matches();
 734        cx.simulate(
 735            "v w j x",
 736            indoc! {"
 737                The ˇquick brown
 738                fox jumps over
 739                the lazy dog"},
 740        )
 741        .await
 742        .assert_matches();
 743        // Test pasting code copied on delete
 744        cx.simulate_shared_keystrokes("j p").await;
 745        cx.shared_state().await.assert_matches();
 746
 747        cx.simulate_at_each_offset(
 748            "v w j x",
 749            indoc! {"
 750                The ˇquick brown
 751                fox jumps over
 752                the ˇlazy dog"},
 753        )
 754        .await
 755        .assert_matches();
 756        cx.simulate_at_each_offset(
 757            "v b k x",
 758            indoc! {"
 759                The ˇquick brown
 760                fox jumps ˇover
 761                the ˇlazy dog"},
 762        )
 763        .await
 764        .assert_matches();
 765    }
 766
 767    #[gpui::test]
 768    async fn test_visual_line_delete(cx: &mut gpui::TestAppContext) {
 769        let mut cx = NeovimBackedTestContext::new(cx).await;
 770
 771        cx.set_shared_state(indoc! {"
 772                The quˇick brown
 773                fox jumps over
 774                the lazy dog"})
 775            .await;
 776        cx.simulate_shared_keystrokes("shift-v x").await;
 777        cx.shared_state().await.assert_matches();
 778
 779        // Test pasting code copied on delete
 780        cx.simulate_shared_keystrokes("p").await;
 781        cx.shared_state().await.assert_matches();
 782
 783        cx.set_shared_state(indoc! {"
 784                The quick brown
 785                fox jumps over
 786                the laˇzy dog"})
 787            .await;
 788        cx.simulate_shared_keystrokes("shift-v x").await;
 789        cx.shared_state().await.assert_matches();
 790        cx.shared_clipboard().await.assert_eq("the lazy dog\n");
 791
 792        cx.set_shared_state(indoc! {"
 793                                The quˇick brown
 794                                fox jumps over
 795                                the lazy dog"})
 796            .await;
 797        cx.simulate_shared_keystrokes("shift-v j x").await;
 798        cx.shared_state().await.assert_matches();
 799        // Test pasting code copied on delete
 800        cx.simulate_shared_keystrokes("p").await;
 801        cx.shared_state().await.assert_matches();
 802
 803        cx.set_shared_state(indoc! {"
 804            The ˇlong line
 805            should not
 806            crash
 807            "})
 808            .await;
 809        cx.simulate_shared_keystrokes("shift-v $ x").await;
 810        cx.shared_state().await.assert_matches();
 811    }
 812
 813    #[gpui::test]
 814    async fn test_visual_yank(cx: &mut gpui::TestAppContext) {
 815        let mut cx = NeovimBackedTestContext::new(cx).await;
 816
 817        cx.set_shared_state("The quick ˇbrown").await;
 818        cx.simulate_shared_keystrokes("v w y").await;
 819        cx.shared_state().await.assert_eq("The quick ˇbrown");
 820        cx.shared_clipboard().await.assert_eq("brown");
 821
 822        cx.set_shared_state(indoc! {"
 823                The ˇquick brown
 824                fox jumps over
 825                the lazy dog"})
 826            .await;
 827        cx.simulate_shared_keystrokes("v w j y").await;
 828        cx.shared_state().await.assert_eq(indoc! {"
 829                    The ˇquick brown
 830                    fox jumps over
 831                    the lazy dog"});
 832        cx.shared_clipboard().await.assert_eq(indoc! {"
 833                quick brown
 834                fox jumps o"});
 835
 836        cx.set_shared_state(indoc! {"
 837                    The quick brown
 838                    fox jumps over
 839                    the ˇlazy dog"})
 840            .await;
 841        cx.simulate_shared_keystrokes("v w j y").await;
 842        cx.shared_state().await.assert_eq(indoc! {"
 843                    The quick brown
 844                    fox jumps over
 845                    the ˇlazy dog"});
 846        cx.shared_clipboard().await.assert_eq("lazy d");
 847        cx.simulate_shared_keystrokes("shift-v y").await;
 848        cx.shared_clipboard().await.assert_eq("the lazy dog\n");
 849
 850        cx.set_shared_state(indoc! {"
 851                    The ˇquick brown
 852                    fox jumps over
 853                    the lazy dog"})
 854            .await;
 855        cx.simulate_shared_keystrokes("v b k y").await;
 856        cx.shared_state().await.assert_eq(indoc! {"
 857                    ˇThe quick brown
 858                    fox jumps over
 859                    the lazy dog"});
 860        assert_eq!(
 861            cx.read_from_clipboard()
 862                .map(|item| item.text().clone())
 863                .unwrap(),
 864            "The q"
 865        );
 866
 867        cx.set_shared_state(indoc! {"
 868                    The quick brown
 869                    fox ˇjumps over
 870                    the lazy dog"})
 871            .await;
 872        cx.simulate_shared_keystrokes("shift-v shift-g shift-y")
 873            .await;
 874        cx.shared_state().await.assert_eq(indoc! {"
 875                    The quick brown
 876                    ˇfox jumps over
 877                    the lazy dog"});
 878        cx.shared_clipboard()
 879            .await
 880            .assert_eq("fox jumps over\nthe lazy dog\n");
 881    }
 882
 883    #[gpui::test]
 884    async fn test_visual_block_mode(cx: &mut gpui::TestAppContext) {
 885        let mut cx = NeovimBackedTestContext::new(cx).await;
 886
 887        cx.set_shared_state(indoc! {
 888            "The ˇquick brown
 889             fox jumps over
 890             the lazy dog"
 891        })
 892        .await;
 893        cx.simulate_shared_keystrokes("ctrl-v").await;
 894        cx.shared_state().await.assert_eq(indoc! {
 895            "The «qˇ»uick brown
 896            fox jumps over
 897            the lazy dog"
 898        });
 899        cx.simulate_shared_keystrokes("2 down").await;
 900        cx.shared_state().await.assert_eq(indoc! {
 901            "The «qˇ»uick brown
 902            fox «jˇ»umps over
 903            the «lˇ»azy dog"
 904        });
 905        cx.simulate_shared_keystrokes("e").await;
 906        cx.shared_state().await.assert_eq(indoc! {
 907            "The «quicˇ»k brown
 908            fox «jumpˇ»s over
 909            the «lazyˇ» dog"
 910        });
 911        cx.simulate_shared_keystrokes("^").await;
 912        cx.shared_state().await.assert_eq(indoc! {
 913            "«ˇThe q»uick brown
 914            «ˇfox j»umps over
 915            «ˇthe l»azy dog"
 916        });
 917        cx.simulate_shared_keystrokes("$").await;
 918        cx.shared_state().await.assert_eq(indoc! {
 919            "The «quick brownˇ»
 920            fox «jumps overˇ»
 921            the «lazy dogˇ»"
 922        });
 923        cx.simulate_shared_keystrokes("shift-f space").await;
 924        cx.shared_state().await.assert_eq(indoc! {
 925            "The «quickˇ» brown
 926            fox «jumpsˇ» over
 927            the «lazy ˇ»dog"
 928        });
 929
 930        // toggling through visual mode works as expected
 931        cx.simulate_shared_keystrokes("v").await;
 932        cx.shared_state().await.assert_eq(indoc! {
 933            "The «quick brown
 934            fox jumps over
 935            the lazy ˇ»dog"
 936        });
 937        cx.simulate_shared_keystrokes("ctrl-v").await;
 938        cx.shared_state().await.assert_eq(indoc! {
 939            "The «quickˇ» brown
 940            fox «jumpsˇ» over
 941            the «lazy ˇ»dog"
 942        });
 943
 944        cx.set_shared_state(indoc! {
 945            "The ˇquick
 946             brown
 947             fox
 948             jumps over the
 949
 950             lazy dog
 951            "
 952        })
 953        .await;
 954        cx.simulate_shared_keystrokes("ctrl-v down down").await;
 955        cx.shared_state().await.assert_eq(indoc! {
 956            "The«ˇ q»uick
 957            bro«ˇwn»
 958            foxˇ
 959            jumps over the
 960
 961            lazy dog
 962            "
 963        });
 964        cx.simulate_shared_keystrokes("down").await;
 965        cx.shared_state().await.assert_eq(indoc! {
 966            "The «qˇ»uick
 967            brow«nˇ»
 968            fox
 969            jump«sˇ» over the
 970
 971            lazy dog
 972            "
 973        });
 974        cx.simulate_shared_keystrokes("left").await;
 975        cx.shared_state().await.assert_eq(indoc! {
 976            "The«ˇ q»uick
 977            bro«ˇwn»
 978            foxˇ
 979            jum«ˇps» over the
 980
 981            lazy dog
 982            "
 983        });
 984        cx.simulate_shared_keystrokes("s o escape").await;
 985        cx.shared_state().await.assert_eq(indoc! {
 986            "Theˇouick
 987            broo
 988            foxo
 989            jumo over the
 990
 991            lazy dog
 992            "
 993        });
 994
 995        // https://github.com/zed-industries/zed/issues/6274
 996        cx.set_shared_state(indoc! {
 997            "Theˇ quick brown
 998
 999            fox jumps over
1000            the lazy dog
1001            "
1002        })
1003        .await;
1004        cx.simulate_shared_keystrokes("l ctrl-v j j").await;
1005        cx.shared_state().await.assert_eq(indoc! {
1006            "The «qˇ»uick brown
1007
1008            fox «jˇ»umps over
1009            the lazy dog
1010            "
1011        });
1012    }
1013
1014    #[gpui::test]
1015    async fn test_visual_block_issue_2123(cx: &mut gpui::TestAppContext) {
1016        let mut cx = NeovimBackedTestContext::new(cx).await;
1017
1018        cx.set_shared_state(indoc! {
1019            "The ˇquick brown
1020            fox jumps over
1021            the lazy dog
1022            "
1023        })
1024        .await;
1025        cx.simulate_shared_keystrokes("ctrl-v right down").await;
1026        cx.shared_state().await.assert_eq(indoc! {
1027            "The «quˇ»ick brown
1028            fox «juˇ»mps over
1029            the lazy dog
1030            "
1031        });
1032    }
1033
1034    #[gpui::test]
1035    async fn test_visual_block_insert(cx: &mut gpui::TestAppContext) {
1036        let mut cx = NeovimBackedTestContext::new(cx).await;
1037
1038        cx.set_shared_state(indoc! {
1039            "ˇThe quick brown
1040            fox jumps over
1041            the lazy dog
1042            "
1043        })
1044        .await;
1045        cx.simulate_shared_keystrokes("ctrl-v 9 down").await;
1046        cx.shared_state().await.assert_eq(indoc! {
1047            "«Tˇ»he quick brown
1048            «fˇ»ox jumps over
1049            «tˇ»he lazy dog
1050            ˇ"
1051        });
1052
1053        cx.simulate_shared_keystrokes("shift-i k escape").await;
1054        cx.shared_state().await.assert_eq(indoc! {
1055            "ˇkThe quick brown
1056            kfox jumps over
1057            kthe lazy dog
1058            k"
1059        });
1060
1061        cx.set_shared_state(indoc! {
1062            "ˇThe quick brown
1063            fox jumps over
1064            the lazy dog
1065            "
1066        })
1067        .await;
1068        cx.simulate_shared_keystrokes("ctrl-v 9 down").await;
1069        cx.shared_state().await.assert_eq(indoc! {
1070            "«Tˇ»he quick brown
1071            «fˇ»ox jumps over
1072            «tˇ»he lazy dog
1073            ˇ"
1074        });
1075        cx.simulate_shared_keystrokes("c k escape").await;
1076        cx.shared_state().await.assert_eq(indoc! {
1077            "ˇkhe quick brown
1078            kox jumps over
1079            khe lazy dog
1080            k"
1081        });
1082    }
1083
1084    #[gpui::test]
1085    async fn test_visual_object(cx: &mut gpui::TestAppContext) {
1086        let mut cx = NeovimBackedTestContext::new(cx).await;
1087
1088        cx.set_shared_state("hello (in [parˇens] o)").await;
1089        cx.simulate_shared_keystrokes("ctrl-v l").await;
1090        cx.simulate_shared_keystrokes("a ]").await;
1091        cx.shared_state()
1092            .await
1093            .assert_eq("hello (in «[parens]ˇ» o)");
1094        cx.simulate_shared_keystrokes("i (").await;
1095        cx.shared_state()
1096            .await
1097            .assert_eq("hello («in [parens] oˇ»)");
1098
1099        cx.set_shared_state("hello in a wˇord again.").await;
1100        cx.simulate_shared_keystrokes("ctrl-v l i w").await;
1101        cx.shared_state()
1102            .await
1103            .assert_eq("hello in a w«ordˇ» again.");
1104        assert_eq!(cx.mode(), Mode::VisualBlock);
1105        cx.simulate_shared_keystrokes("o a s").await;
1106        cx.shared_state()
1107            .await
1108            .assert_eq("«ˇhello in a word» again.");
1109    }
1110
1111    #[gpui::test]
1112    async fn test_mode_across_command(cx: &mut gpui::TestAppContext) {
1113        let mut cx = VimTestContext::new(cx, true).await;
1114
1115        cx.set_state("aˇbc", Mode::Normal);
1116        cx.simulate_keystrokes("ctrl-v");
1117        assert_eq!(cx.mode(), Mode::VisualBlock);
1118        cx.simulate_keystrokes("cmd-shift-p escape");
1119        assert_eq!(cx.mode(), Mode::VisualBlock);
1120    }
1121
1122    #[gpui::test]
1123    async fn test_gn(cx: &mut gpui::TestAppContext) {
1124        let mut cx = NeovimBackedTestContext::new(cx).await;
1125
1126        cx.set_shared_state("aaˇ aa aa aa aa").await;
1127        cx.simulate_shared_keystrokes("/ a a enter").await;
1128        cx.shared_state().await.assert_eq("aa ˇaa aa aa aa");
1129        cx.simulate_shared_keystrokes("g n").await;
1130        cx.shared_state().await.assert_eq("aa «aaˇ» aa aa aa");
1131        cx.simulate_shared_keystrokes("g n").await;
1132        cx.shared_state().await.assert_eq("aa «aa aaˇ» aa aa");
1133        cx.simulate_shared_keystrokes("escape d g n").await;
1134        cx.shared_state().await.assert_eq("aa aa ˇ aa aa");
1135
1136        cx.set_shared_state("aaˇ aa aa aa aa").await;
1137        cx.simulate_shared_keystrokes("/ a a enter").await;
1138        cx.shared_state().await.assert_eq("aa ˇaa aa aa aa");
1139        cx.simulate_shared_keystrokes("3 g n").await;
1140        cx.shared_state().await.assert_eq("aa aa aa «aaˇ» aa");
1141
1142        cx.set_shared_state("aaˇ aa aa aa aa").await;
1143        cx.simulate_shared_keystrokes("/ a a enter").await;
1144        cx.shared_state().await.assert_eq("aa ˇaa aa aa aa");
1145        cx.simulate_shared_keystrokes("g shift-n").await;
1146        cx.shared_state().await.assert_eq("aa «ˇaa» aa aa aa");
1147        cx.simulate_shared_keystrokes("g shift-n").await;
1148        cx.shared_state().await.assert_eq("«ˇaa aa» aa aa aa");
1149    }
1150
1151    #[gpui::test]
1152    async fn test_dgn_repeat(cx: &mut gpui::TestAppContext) {
1153        let mut cx = NeovimBackedTestContext::new(cx).await;
1154
1155        cx.set_shared_state("aaˇ aa aa aa aa").await;
1156        cx.simulate_shared_keystrokes("/ a a enter").await;
1157        cx.shared_state().await.assert_eq("aa ˇaa aa aa aa");
1158        cx.simulate_shared_keystrokes("d g n").await;
1159
1160        cx.shared_state().await.assert_eq("aa ˇ aa aa aa");
1161        cx.simulate_shared_keystrokes(".").await;
1162        cx.shared_state().await.assert_eq("aa  ˇ aa aa");
1163        cx.simulate_shared_keystrokes(".").await;
1164        cx.shared_state().await.assert_eq("aa   ˇ aa");
1165    }
1166
1167    #[gpui::test]
1168    async fn test_cgn_repeat(cx: &mut gpui::TestAppContext) {
1169        let mut cx = NeovimBackedTestContext::new(cx).await;
1170
1171        cx.set_shared_state("aaˇ aa aa aa aa").await;
1172        cx.simulate_shared_keystrokes("/ a a enter").await;
1173        cx.shared_state().await.assert_eq("aa ˇaa aa aa aa");
1174        cx.simulate_shared_keystrokes("c g n x escape").await;
1175        cx.shared_state().await.assert_eq("aa ˇx aa aa aa");
1176        cx.simulate_shared_keystrokes(".").await;
1177        cx.shared_state().await.assert_eq("aa x ˇx aa aa");
1178    }
1179
1180    #[gpui::test]
1181    async fn test_cgn_nomatch(cx: &mut gpui::TestAppContext) {
1182        let mut cx = NeovimBackedTestContext::new(cx).await;
1183
1184        cx.set_shared_state("aaˇ aa aa aa aa").await;
1185        cx.simulate_shared_keystrokes("/ b b enter").await;
1186        cx.shared_state().await.assert_eq("aaˇ aa aa aa aa");
1187        cx.simulate_shared_keystrokes("c g n x escape").await;
1188        cx.shared_state().await.assert_eq("aaˇaa aa aa aa");
1189        cx.simulate_shared_keystrokes(".").await;
1190        cx.shared_state().await.assert_eq("aaˇa aa aa aa");
1191
1192        cx.set_shared_state("aaˇ bb aa aa aa").await;
1193        cx.simulate_shared_keystrokes("/ b b enter").await;
1194        cx.shared_state().await.assert_eq("aa ˇbb aa aa aa");
1195        cx.simulate_shared_keystrokes("c g n x escape").await;
1196        cx.shared_state().await.assert_eq("aa ˇx aa aa aa");
1197        cx.simulate_shared_keystrokes(".").await;
1198        cx.shared_state().await.assert_eq("aa ˇx aa aa aa");
1199    }
1200}