project_panel.rs

   1mod project_panel_settings;
   2mod utils;
   3
   4use anyhow::{Context as _, Result};
   5use client::{ErrorCode, ErrorExt};
   6use collections::{BTreeSet, HashMap, hash_map};
   7use command_palette_hooks::CommandPaletteFilter;
   8use db::kvp::KEY_VALUE_STORE;
   9use editor::{
  10    Editor, EditorEvent,
  11    items::{
  12        entry_diagnostic_aware_icon_decoration_and_color,
  13        entry_diagnostic_aware_icon_name_and_color, entry_git_aware_label_color,
  14    },
  15};
  16use file_icons::FileIcons;
  17use git;
  18use git::status::GitSummary;
  19use git_ui;
  20use git_ui::file_diff_view::FileDiffView;
  21use gpui::{
  22    Action, AnyElement, App, AsyncWindowContext, Bounds, ClipboardItem, Context, CursorStyle,
  23    DismissEvent, Div, DragMoveEvent, Entity, EventEmitter, ExternalPaths, FocusHandle, Focusable,
  24    Hsla, InteractiveElement, KeyContext, ListHorizontalSizingBehavior, ListSizingBehavior,
  25    Modifiers, ModifiersChangedEvent, MouseButton, MouseDownEvent, ParentElement, Pixels, Point,
  26    PromptLevel, Render, ScrollStrategy, Stateful, Styled, Subscription, Task,
  27    UniformListScrollHandle, WeakEntity, Window, actions, anchored, deferred, div, hsla,
  28    linear_color_stop, linear_gradient, point, px, size, transparent_white, uniform_list,
  29};
  30use language::DiagnosticSeverity;
  31use menu::{Confirm, SelectFirst, SelectLast, SelectNext, SelectPrevious};
  32use project::{
  33    Entry, EntryKind, Fs, GitEntry, GitEntryRef, GitTraversal, Project, ProjectEntryId,
  34    ProjectPath, Worktree, WorktreeId,
  35    git_store::{GitStoreEvent, RepositoryEvent, git_traversal::ChildEntriesGitIter},
  36    project_settings::GoToDiagnosticSeverityFilter,
  37};
  38use project_panel_settings::ProjectPanelSettings;
  39use rayon::slice::ParallelSliceMut;
  40use schemars::JsonSchema;
  41use serde::{Deserialize, Serialize};
  42use settings::{
  43    DockSide, ProjectPanelEntrySpacing, Settings, SettingsStore, ShowDiagnostics, ShowIndentGuides,
  44    update_settings_file,
  45};
  46use smallvec::SmallVec;
  47use std::{any::TypeId, time::Instant};
  48use std::{
  49    cell::OnceCell,
  50    cmp,
  51    collections::HashSet,
  52    ops::Range,
  53    path::{Path, PathBuf},
  54    sync::Arc,
  55    time::Duration,
  56};
  57use theme::ThemeSettings;
  58use ui::{
  59    Color, ContextMenu, DecoratedIcon, Divider, Icon, IconDecoration, IconDecorationKind,
  60    IndentGuideColors, IndentGuideLayout, KeyBinding, Label, LabelSize, ListItem, ListItemSpacing,
  61    ScrollAxes, ScrollableHandle, Scrollbars, StickyCandidate, Tooltip, WithScrollbar, prelude::*,
  62    v_flex,
  63};
  64use util::{ResultExt, TakeUntilExt, TryFutureExt, maybe, paths::compare_paths, rel_path::RelPath};
  65use workspace::{
  66    DraggedSelection, OpenInTerminal, OpenOptions, OpenVisible, PreviewTabsSettings, SelectedEntry,
  67    SplitDirection, Workspace,
  68    dock::{DockPosition, Panel, PanelEvent},
  69    notifications::{DetachAndPromptErr, NotifyResultExt, NotifyTaskExt},
  70};
  71use worktree::CreatedEntry;
  72use zed_actions::workspace::OpenWithSystem;
  73
  74const PROJECT_PANEL_KEY: &str = "ProjectPanel";
  75const NEW_ENTRY_ID: ProjectEntryId = ProjectEntryId::MAX;
  76
  77struct VisibleEntriesForWorktree {
  78    worktree_id: WorktreeId,
  79    entries: Vec<GitEntry>,
  80    index: OnceCell<HashSet<Arc<RelPath>>>,
  81}
  82
  83struct State {
  84    last_worktree_root_id: Option<ProjectEntryId>,
  85    /// Maps from leaf project entry ID to the currently selected ancestor.
  86    /// Relevant only for auto-fold dirs, where a single project panel entry may actually consist of several
  87    /// project entries (and all non-leaf nodes are guaranteed to be directories).
  88    ancestors: HashMap<ProjectEntryId, FoldedAncestors>,
  89    visible_entries: Vec<VisibleEntriesForWorktree>,
  90    max_width_item_index: Option<usize>,
  91    // Currently selected leaf entry (see auto-folding for a definition of that) in a file tree
  92    selection: Option<SelectedEntry>,
  93    edit_state: Option<EditState>,
  94    unfolded_dir_ids: HashSet<ProjectEntryId>,
  95    expanded_dir_ids: HashMap<WorktreeId, Vec<ProjectEntryId>>,
  96}
  97
  98impl State {
  99    fn derive(old: &Self) -> Self {
 100        Self {
 101            last_worktree_root_id: None,
 102            ancestors: Default::default(),
 103            visible_entries: Default::default(),
 104            max_width_item_index: None,
 105            edit_state: old.edit_state.clone(),
 106            unfolded_dir_ids: old.unfolded_dir_ids.clone(),
 107            selection: old.selection,
 108            expanded_dir_ids: old.expanded_dir_ids.clone(),
 109        }
 110    }
 111}
 112
 113pub struct ProjectPanel {
 114    project: Entity<Project>,
 115    fs: Arc<dyn Fs>,
 116    focus_handle: FocusHandle,
 117    scroll_handle: UniformListScrollHandle,
 118    // An update loop that keeps incrementing/decrementing scroll offset while there is a dragged entry that's
 119    // hovered over the start/end of a list.
 120    hover_scroll_task: Option<Task<()>>,
 121    rendered_entries_len: usize,
 122    folded_directory_drag_target: Option<FoldedDirectoryDragTarget>,
 123    drag_target_entry: Option<DragTarget>,
 124    marked_entries: Vec<SelectedEntry>,
 125    context_menu: Option<(Entity<ContextMenu>, Point<Pixels>, Subscription)>,
 126    filename_editor: Entity<Editor>,
 127    clipboard: Option<ClipboardEntry>,
 128    _dragged_entry_destination: Option<Arc<Path>>,
 129    workspace: WeakEntity<Workspace>,
 130    width: Option<Pixels>,
 131    pending_serialization: Task<Option<()>>,
 132    diagnostics: HashMap<(WorktreeId, Arc<RelPath>), DiagnosticSeverity>,
 133    diagnostic_summary_update: Task<()>,
 134    // We keep track of the mouse down state on entries so we don't flash the UI
 135    // in case a user clicks to open a file.
 136    mouse_down: bool,
 137    hover_expand_task: Option<Task<()>>,
 138    previous_drag_position: Option<Point<Pixels>>,
 139    sticky_items_count: usize,
 140    last_reported_update: Instant,
 141    update_visible_entries_task: Task<()>,
 142    state: State,
 143}
 144
 145enum DragTarget {
 146    /// Dragging on an entry
 147    Entry {
 148        /// The entry currently under the mouse cursor during a drag operation
 149        entry_id: ProjectEntryId,
 150        /// Highlight this entry along with all of its children
 151        highlight_entry_id: ProjectEntryId,
 152    },
 153    /// Dragging on background
 154    Background,
 155}
 156
 157#[derive(Copy, Clone, Debug)]
 158struct FoldedDirectoryDragTarget {
 159    entry_id: ProjectEntryId,
 160    index: usize,
 161    /// Whether we are dragging over the delimiter rather than the component itself.
 162    is_delimiter_target: bool,
 163}
 164
 165#[derive(Clone, Debug)]
 166enum ValidationState {
 167    None,
 168    Warning(String),
 169    Error(String),
 170}
 171
 172#[derive(Clone, Debug)]
 173struct EditState {
 174    worktree_id: WorktreeId,
 175    entry_id: ProjectEntryId,
 176    leaf_entry_id: Option<ProjectEntryId>,
 177    is_dir: bool,
 178    depth: usize,
 179    processing_filename: Option<Arc<RelPath>>,
 180    previously_focused: Option<SelectedEntry>,
 181    validation_state: ValidationState,
 182}
 183
 184impl EditState {
 185    fn is_new_entry(&self) -> bool {
 186        self.leaf_entry_id.is_none()
 187    }
 188}
 189
 190#[derive(Clone, Debug)]
 191enum ClipboardEntry {
 192    Copied(BTreeSet<SelectedEntry>),
 193    Cut(BTreeSet<SelectedEntry>),
 194}
 195
 196#[derive(Debug, PartialEq, Eq, Clone)]
 197struct EntryDetails {
 198    filename: String,
 199    icon: Option<SharedString>,
 200    path: Arc<RelPath>,
 201    depth: usize,
 202    kind: EntryKind,
 203    is_ignored: bool,
 204    is_expanded: bool,
 205    is_selected: bool,
 206    is_marked: bool,
 207    is_editing: bool,
 208    is_processing: bool,
 209    is_cut: bool,
 210    sticky: Option<StickyDetails>,
 211    filename_text_color: Color,
 212    diagnostic_severity: Option<DiagnosticSeverity>,
 213    git_status: GitSummary,
 214    is_private: bool,
 215    worktree_id: WorktreeId,
 216    canonical_path: Option<Arc<Path>>,
 217}
 218
 219#[derive(Debug, PartialEq, Eq, Clone)]
 220struct StickyDetails {
 221    sticky_index: usize,
 222}
 223
 224/// Permanently deletes the selected file or directory.
 225#[derive(PartialEq, Clone, Default, Debug, Deserialize, JsonSchema, Action)]
 226#[action(namespace = project_panel)]
 227#[serde(deny_unknown_fields)]
 228struct Delete {
 229    #[serde(default)]
 230    pub skip_prompt: bool,
 231}
 232
 233/// Moves the selected file or directory to the system trash.
 234#[derive(PartialEq, Clone, Default, Debug, Deserialize, JsonSchema, Action)]
 235#[action(namespace = project_panel)]
 236#[serde(deny_unknown_fields)]
 237struct Trash {
 238    #[serde(default)]
 239    pub skip_prompt: bool,
 240}
 241
 242/// Selects the next entry with diagnostics.
 243#[derive(PartialEq, Clone, Default, Debug, Deserialize, JsonSchema, Action)]
 244#[action(namespace = project_panel)]
 245#[serde(deny_unknown_fields)]
 246struct SelectNextDiagnostic {
 247    #[serde(default)]
 248    pub severity: GoToDiagnosticSeverityFilter,
 249}
 250
 251/// Selects the previous entry with diagnostics.
 252#[derive(PartialEq, Clone, Default, Debug, Deserialize, JsonSchema, Action)]
 253#[action(namespace = project_panel)]
 254#[serde(deny_unknown_fields)]
 255struct SelectPrevDiagnostic {
 256    #[serde(default)]
 257    pub severity: GoToDiagnosticSeverityFilter,
 258}
 259
 260actions!(
 261    project_panel,
 262    [
 263        /// Expands the selected entry in the project tree.
 264        ExpandSelectedEntry,
 265        /// Collapses the selected entry in the project tree.
 266        CollapseSelectedEntry,
 267        /// Collapses all entries in the project tree.
 268        CollapseAllEntries,
 269        /// Creates a new directory.
 270        NewDirectory,
 271        /// Creates a new file.
 272        NewFile,
 273        /// Copies the selected file or directory.
 274        Copy,
 275        /// Duplicates the selected file or directory.
 276        Duplicate,
 277        /// Reveals the selected item in the system file manager.
 278        RevealInFileManager,
 279        /// Removes the selected folder from the project.
 280        RemoveFromProject,
 281        /// Cuts the selected file or directory.
 282        Cut,
 283        /// Pastes the previously cut or copied item.
 284        Paste,
 285        /// Renames the selected file or directory.
 286        Rename,
 287        /// Opens the selected file in the editor.
 288        Open,
 289        /// Opens the selected file in a permanent tab.
 290        OpenPermanent,
 291        /// Opens the selected file in a vertical split.
 292        OpenSplitVertical,
 293        /// Opens the selected file in a horizontal split.
 294        OpenSplitHorizontal,
 295        /// Toggles focus on the project panel.
 296        ToggleFocus,
 297        /// Toggles visibility of git-ignored files.
 298        ToggleHideGitIgnore,
 299        /// Toggles visibility of hidden files.
 300        ToggleHideHidden,
 301        /// Starts a new search in the selected directory.
 302        NewSearchInDirectory,
 303        /// Unfolds the selected directory.
 304        UnfoldDirectory,
 305        /// Folds the selected directory.
 306        FoldDirectory,
 307        /// Scroll half a page upwards
 308        ScrollUp,
 309        /// Scroll half a page downwards
 310        ScrollDown,
 311        /// Scroll until the cursor displays at the center
 312        ScrollCursorCenter,
 313        /// Scroll until the cursor displays at the top
 314        ScrollCursorTop,
 315        /// Scroll until the cursor displays at the bottom
 316        ScrollCursorBottom,
 317        /// Selects the parent directory.
 318        SelectParent,
 319        /// Selects the next entry with git changes.
 320        SelectNextGitEntry,
 321        /// Selects the previous entry with git changes.
 322        SelectPrevGitEntry,
 323        /// Selects the next directory.
 324        SelectNextDirectory,
 325        /// Selects the previous directory.
 326        SelectPrevDirectory,
 327        /// Opens a diff view to compare two marked files.
 328        CompareMarkedFiles,
 329    ]
 330);
 331
 332#[derive(Clone, Debug, Default)]
 333struct FoldedAncestors {
 334    current_ancestor_depth: usize,
 335    ancestors: Vec<ProjectEntryId>,
 336}
 337
 338impl FoldedAncestors {
 339    fn max_ancestor_depth(&self) -> usize {
 340        self.ancestors.len()
 341    }
 342
 343    /// Note: This returns None for last item in ancestors list
 344    fn active_ancestor(&self) -> Option<ProjectEntryId> {
 345        if self.current_ancestor_depth == 0 {
 346            return None;
 347        }
 348        self.ancestors.get(self.current_ancestor_depth).copied()
 349    }
 350
 351    fn active_index(&self) -> usize {
 352        self.max_ancestor_depth()
 353            .saturating_sub(1)
 354            .saturating_sub(self.current_ancestor_depth)
 355    }
 356
 357    fn active_component(&self, file_name: &str) -> Option<String> {
 358        Path::new(file_name)
 359            .components()
 360            .nth(self.active_index())
 361            .map(|comp| comp.as_os_str().to_string_lossy().into_owned())
 362    }
 363}
 364
 365pub fn init(cx: &mut App) {
 366    cx.observe_new(|workspace: &mut Workspace, _, _| {
 367        workspace.register_action(|workspace, _: &ToggleFocus, window, cx| {
 368            workspace.toggle_panel_focus::<ProjectPanel>(window, cx);
 369        });
 370
 371        workspace.register_action(|workspace, _: &ToggleHideGitIgnore, _, cx| {
 372            let fs = workspace.app_state().fs.clone();
 373            update_settings_file(fs, cx, move |setting, _| {
 374                setting.project_panel.get_or_insert_default().hide_gitignore = Some(
 375                    !setting
 376                        .project_panel
 377                        .get_or_insert_default()
 378                        .hide_gitignore
 379                        .unwrap_or(false),
 380                );
 381            })
 382        });
 383
 384        workspace.register_action(|workspace, _: &ToggleHideHidden, _, cx| {
 385            let fs = workspace.app_state().fs.clone();
 386            update_settings_file(fs, cx, move |setting, _| {
 387                setting.project_panel.get_or_insert_default().hide_hidden = Some(
 388                    !setting
 389                        .project_panel
 390                        .get_or_insert_default()
 391                        .hide_hidden
 392                        .unwrap_or(false),
 393                );
 394            })
 395        });
 396
 397        workspace.register_action(|workspace, action: &CollapseAllEntries, window, cx| {
 398            if let Some(panel) = workspace.panel::<ProjectPanel>(cx) {
 399                panel.update(cx, |panel, cx| {
 400                    panel.collapse_all_entries(action, window, cx);
 401                });
 402            }
 403        });
 404
 405        workspace.register_action(|workspace, action: &Rename, window, cx| {
 406            workspace.open_panel::<ProjectPanel>(window, cx);
 407            if let Some(panel) = workspace.panel::<ProjectPanel>(cx) {
 408                panel.update(cx, |panel, cx| {
 409                    if let Some(first_marked) = panel.marked_entries.first() {
 410                        let first_marked = *first_marked;
 411                        panel.marked_entries.clear();
 412                        panel.state.selection = Some(first_marked);
 413                    }
 414                    panel.rename(action, window, cx);
 415                });
 416            }
 417        });
 418
 419        workspace.register_action(|workspace, action: &Duplicate, window, cx| {
 420            workspace.open_panel::<ProjectPanel>(window, cx);
 421            if let Some(panel) = workspace.panel::<ProjectPanel>(cx) {
 422                panel.update(cx, |panel, cx| {
 423                    panel.duplicate(action, window, cx);
 424                });
 425            }
 426        });
 427
 428        workspace.register_action(|workspace, action: &Delete, window, cx| {
 429            if let Some(panel) = workspace.panel::<ProjectPanel>(cx) {
 430                panel.update(cx, |panel, cx| panel.delete(action, window, cx));
 431            }
 432        });
 433
 434        workspace.register_action(|workspace, _: &git::FileHistory, window, cx| {
 435            // First try to get from project panel if it's focused
 436            if let Some(panel) = workspace.panel::<ProjectPanel>(cx) {
 437                let maybe_project_path = panel.read(cx).state.selection.and_then(|selection| {
 438                    let project = workspace.project().read(cx);
 439                    let worktree = project.worktree_for_id(selection.worktree_id, cx)?;
 440                    let entry = worktree.read(cx).entry_for_id(selection.entry_id)?;
 441                    if entry.is_file() {
 442                        Some(ProjectPath {
 443                            worktree_id: selection.worktree_id,
 444                            path: entry.path.clone(),
 445                        })
 446                    } else {
 447                        None
 448                    }
 449                });
 450
 451                if let Some(project_path) = maybe_project_path {
 452                    let project = workspace.project();
 453                    let git_store = project.read(cx).git_store();
 454                    if let Some((repo, repo_path)) = git_store
 455                        .read(cx)
 456                        .repository_and_path_for_project_path(&project_path, cx)
 457                    {
 458                        git_ui::file_history_view::FileHistoryView::open(
 459                            repo_path,
 460                            git_store.downgrade(),
 461                            repo.downgrade(),
 462                            workspace.weak_handle(),
 463                            window,
 464                            cx,
 465                        );
 466                        return;
 467                    }
 468                }
 469            }
 470
 471            // Fallback: try to get from active editor
 472            if let Some(active_item) = workspace.active_item(cx) {
 473                if let Some(editor) = active_item.downcast::<Editor>() {
 474                    if let Some(buffer) = editor.read(cx).buffer().read(cx).as_singleton() {
 475                        if let Some(file) = buffer.read(cx).file() {
 476                            let worktree_id = file.worktree_id(cx);
 477                            let project_path = ProjectPath {
 478                                worktree_id,
 479                                path: file.path().clone(),
 480                            };
 481                            let project = workspace.project();
 482                            let git_store = project.read(cx).git_store();
 483                            if let Some((repo, repo_path)) = git_store
 484                                .read(cx)
 485                                .repository_and_path_for_project_path(&project_path, cx)
 486                            {
 487                                git_ui::file_history_view::FileHistoryView::open(
 488                                    repo_path,
 489                                    git_store.downgrade(),
 490                                    repo.downgrade(),
 491                                    workspace.weak_handle(),
 492                                    window,
 493                                    cx,
 494                                );
 495                            }
 496                        }
 497                    }
 498                }
 499            }
 500        });
 501    })
 502    .detach();
 503}
 504
 505#[derive(Debug)]
 506pub enum Event {
 507    OpenedEntry {
 508        entry_id: ProjectEntryId,
 509        focus_opened_item: bool,
 510        allow_preview: bool,
 511    },
 512    SplitEntry {
 513        entry_id: ProjectEntryId,
 514        allow_preview: bool,
 515        split_direction: Option<SplitDirection>,
 516    },
 517    Focus,
 518}
 519
 520#[derive(Serialize, Deserialize)]
 521struct SerializedProjectPanel {
 522    width: Option<Pixels>,
 523}
 524
 525struct DraggedProjectEntryView {
 526    selection: SelectedEntry,
 527    icon: Option<SharedString>,
 528    filename: String,
 529    click_offset: Point<Pixels>,
 530    selections: Arc<[SelectedEntry]>,
 531}
 532
 533struct ItemColors {
 534    default: Hsla,
 535    hover: Hsla,
 536    drag_over: Hsla,
 537    marked: Hsla,
 538    focused: Hsla,
 539}
 540
 541fn get_item_color(is_sticky: bool, cx: &App) -> ItemColors {
 542    let colors = cx.theme().colors();
 543
 544    ItemColors {
 545        default: if is_sticky {
 546            colors.panel_overlay_background
 547        } else {
 548            colors.panel_background
 549        },
 550        hover: if is_sticky {
 551            colors.panel_overlay_hover
 552        } else {
 553            colors.element_hover
 554        },
 555        marked: colors.element_selected,
 556        focused: colors.panel_focused_border,
 557        drag_over: colors.drop_target_background,
 558    }
 559}
 560
 561impl ProjectPanel {
 562    fn new(
 563        workspace: &mut Workspace,
 564        window: &mut Window,
 565        cx: &mut Context<Workspace>,
 566    ) -> Entity<Self> {
 567        let project = workspace.project().clone();
 568        let git_store = project.read(cx).git_store().clone();
 569        let path_style = project.read(cx).path_style(cx);
 570        let project_panel = cx.new(|cx| {
 571            let focus_handle = cx.focus_handle();
 572            cx.on_focus(&focus_handle, window, Self::focus_in).detach();
 573
 574            cx.subscribe_in(
 575                &git_store,
 576                window,
 577                |this, _, event, window, cx| match event {
 578                    GitStoreEvent::RepositoryUpdated(
 579                        _,
 580                        RepositoryEvent::StatusesChanged { full_scan: _ },
 581                        _,
 582                    )
 583                    | GitStoreEvent::RepositoryAdded
 584                    | GitStoreEvent::RepositoryRemoved(_) => {
 585                        this.update_visible_entries(None, false, false, window, cx);
 586                        cx.notify();
 587                    }
 588                    _ => {}
 589                },
 590            )
 591            .detach();
 592
 593            cx.subscribe_in(
 594                &project,
 595                window,
 596                |this, project, event, window, cx| match event {
 597                    project::Event::ActiveEntryChanged(Some(entry_id)) => {
 598                        if ProjectPanelSettings::get_global(cx).auto_reveal_entries {
 599                            this.reveal_entry(project.clone(), *entry_id, true, window, cx)
 600                                .ok();
 601                        }
 602                    }
 603                    project::Event::ActiveEntryChanged(None) => {
 604                        let is_active_item_file_diff_view = this
 605                            .workspace
 606                            .upgrade()
 607                            .and_then(|ws| ws.read(cx).active_item(cx))
 608                            .map(|item| {
 609                                item.act_as_type(TypeId::of::<FileDiffView>(), cx).is_some()
 610                            })
 611                            .unwrap_or(false);
 612                        if !is_active_item_file_diff_view {
 613                            this.marked_entries.clear();
 614                        }
 615                    }
 616                    project::Event::RevealInProjectPanel(entry_id) => {
 617                        if let Some(()) = this
 618                            .reveal_entry(project.clone(), *entry_id, false, window, cx)
 619                            .log_err()
 620                        {
 621                            cx.emit(PanelEvent::Activate);
 622                        }
 623                    }
 624                    project::Event::ActivateProjectPanel => {
 625                        cx.emit(PanelEvent::Activate);
 626                    }
 627                    project::Event::DiskBasedDiagnosticsFinished { .. }
 628                    | project::Event::DiagnosticsUpdated { .. } => {
 629                        if ProjectPanelSettings::get_global(cx).show_diagnostics
 630                            != ShowDiagnostics::Off
 631                        {
 632                            this.diagnostic_summary_update = cx.spawn(async move |this, cx| {
 633                                cx.background_executor()
 634                                    .timer(Duration::from_millis(30))
 635                                    .await;
 636                                this.update(cx, |this, cx| {
 637                                    this.update_diagnostics(cx);
 638                                    cx.notify();
 639                                })
 640                                .log_err();
 641                            });
 642                        }
 643                    }
 644                    project::Event::WorktreeRemoved(id) => {
 645                        this.state.expanded_dir_ids.remove(id);
 646                        this.update_visible_entries(None, false, false, window, cx);
 647                        cx.notify();
 648                    }
 649                    project::Event::WorktreeUpdatedEntries(_, _)
 650                    | project::Event::WorktreeAdded(_)
 651                    | project::Event::WorktreeOrderChanged => {
 652                        this.update_visible_entries(None, false, false, window, cx);
 653                        cx.notify();
 654                    }
 655                    project::Event::ExpandedAllForEntry(worktree_id, entry_id) => {
 656                        if let Some((worktree, expanded_dir_ids)) = project
 657                            .read(cx)
 658                            .worktree_for_id(*worktree_id, cx)
 659                            .zip(this.state.expanded_dir_ids.get_mut(worktree_id))
 660                        {
 661                            let worktree = worktree.read(cx);
 662
 663                            let Some(entry) = worktree.entry_for_id(*entry_id) else {
 664                                return;
 665                            };
 666                            let include_ignored_dirs = !entry.is_ignored;
 667
 668                            let mut dirs_to_expand = vec![*entry_id];
 669                            while let Some(current_id) = dirs_to_expand.pop() {
 670                                let Some(current_entry) = worktree.entry_for_id(current_id) else {
 671                                    continue;
 672                                };
 673                                for child in worktree.child_entries(&current_entry.path) {
 674                                    if !child.is_dir() || (include_ignored_dirs && child.is_ignored)
 675                                    {
 676                                        continue;
 677                                    }
 678
 679                                    dirs_to_expand.push(child.id);
 680
 681                                    if let Err(ix) = expanded_dir_ids.binary_search(&child.id) {
 682                                        expanded_dir_ids.insert(ix, child.id);
 683                                    }
 684                                    this.state.unfolded_dir_ids.insert(child.id);
 685                                }
 686                            }
 687                            this.update_visible_entries(None, false, false, window, cx);
 688                            cx.notify();
 689                        }
 690                    }
 691                    _ => {}
 692                },
 693            )
 694            .detach();
 695
 696            let trash_action = [TypeId::of::<Trash>()];
 697            let is_remote = project.read(cx).is_remote();
 698
 699            // Make sure the trash option is never displayed anywhere on remote
 700            // hosts since they may not support trashing. May want to dynamically
 701            // detect this in the future.
 702            if is_remote {
 703                CommandPaletteFilter::update_global(cx, |filter, _cx| {
 704                    filter.hide_action_types(&trash_action);
 705                });
 706            }
 707
 708            let filename_editor = cx.new(|cx| Editor::single_line(window, cx));
 709
 710            cx.subscribe_in(
 711                &filename_editor,
 712                window,
 713                |project_panel, _, editor_event, window, cx| match editor_event {
 714                    EditorEvent::BufferEdited => {
 715                        project_panel.populate_validation_error(cx);
 716                        project_panel.autoscroll(cx);
 717                    }
 718                    EditorEvent::SelectionsChanged { .. } => {
 719                        project_panel.autoscroll(cx);
 720                    }
 721                    EditorEvent::Blurred => {
 722                        if project_panel
 723                            .state
 724                            .edit_state
 725                            .as_ref()
 726                            .is_some_and(|state| state.processing_filename.is_none())
 727                        {
 728                            match project_panel.confirm_edit(false, window, cx) {
 729                                Some(task) => {
 730                                    task.detach_and_notify_err(window, cx);
 731                                }
 732                                None => {
 733                                    project_panel.state.edit_state = None;
 734                                    project_panel
 735                                        .update_visible_entries(None, false, false, window, cx);
 736                                    cx.notify();
 737                                }
 738                            }
 739                        }
 740                    }
 741                    _ => {}
 742                },
 743            )
 744            .detach();
 745
 746            cx.observe_global::<FileIcons>(|_, cx| {
 747                cx.notify();
 748            })
 749            .detach();
 750
 751            let mut project_panel_settings = *ProjectPanelSettings::get_global(cx);
 752            cx.observe_global_in::<SettingsStore>(window, move |this, window, cx| {
 753                let new_settings = *ProjectPanelSettings::get_global(cx);
 754                if project_panel_settings != new_settings {
 755                    if project_panel_settings.hide_gitignore != new_settings.hide_gitignore {
 756                        this.update_visible_entries(None, false, false, window, cx);
 757                    }
 758                    if project_panel_settings.hide_root != new_settings.hide_root {
 759                        this.update_visible_entries(None, false, false, window, cx);
 760                    }
 761                    if project_panel_settings.hide_hidden != new_settings.hide_hidden {
 762                        this.update_visible_entries(None, false, false, window, cx);
 763                    }
 764                    if project_panel_settings.sticky_scroll && !new_settings.sticky_scroll {
 765                        this.sticky_items_count = 0;
 766                    }
 767                    project_panel_settings = new_settings;
 768                    this.update_diagnostics(cx);
 769                    cx.notify();
 770                }
 771            })
 772            .detach();
 773
 774            let scroll_handle = UniformListScrollHandle::new();
 775            let mut this = Self {
 776                project: project.clone(),
 777                hover_scroll_task: None,
 778                fs: workspace.app_state().fs.clone(),
 779                focus_handle,
 780                rendered_entries_len: 0,
 781                folded_directory_drag_target: None,
 782                drag_target_entry: None,
 783
 784                marked_entries: Default::default(),
 785                context_menu: None,
 786                filename_editor,
 787                clipboard: None,
 788                _dragged_entry_destination: None,
 789                workspace: workspace.weak_handle(),
 790                width: None,
 791                pending_serialization: Task::ready(None),
 792                diagnostics: Default::default(),
 793                diagnostic_summary_update: Task::ready(()),
 794                scroll_handle,
 795                mouse_down: false,
 796                hover_expand_task: None,
 797                previous_drag_position: None,
 798                sticky_items_count: 0,
 799                last_reported_update: Instant::now(),
 800                state: State {
 801                    max_width_item_index: None,
 802                    edit_state: None,
 803                    selection: None,
 804                    last_worktree_root_id: Default::default(),
 805                    visible_entries: Default::default(),
 806                    ancestors: Default::default(),
 807                    expanded_dir_ids: Default::default(),
 808                    unfolded_dir_ids: Default::default(),
 809                },
 810                update_visible_entries_task: Task::ready(()),
 811            };
 812            this.update_visible_entries(None, false, false, window, cx);
 813
 814            this
 815        });
 816
 817        cx.subscribe_in(&project_panel, window, {
 818            let project_panel = project_panel.downgrade();
 819            move |workspace, _, event, window, cx| match event {
 820                &Event::OpenedEntry {
 821                    entry_id,
 822                    focus_opened_item,
 823                    allow_preview,
 824                } => {
 825                    if let Some(worktree) = project.read(cx).worktree_for_entry(entry_id, cx)
 826                        && let Some(entry) = worktree.read(cx).entry_for_id(entry_id) {
 827                            let file_path = entry.path.clone();
 828                            let worktree_id = worktree.read(cx).id();
 829                            let entry_id = entry.id;
 830                            let is_via_ssh = project.read(cx).is_via_remote_server();
 831
 832                            workspace
 833                                .open_path_preview(
 834                                    ProjectPath {
 835                                        worktree_id,
 836                                        path: file_path.clone(),
 837                                    },
 838                                    None,
 839                                    focus_opened_item,
 840                                    allow_preview,
 841                                    true,
 842                                    window, cx,
 843                                )
 844                                .detach_and_prompt_err("Failed to open file", window, cx, move |e, _, _| {
 845                                    match e.error_code() {
 846                                        ErrorCode::Disconnected => if is_via_ssh {
 847                                            Some("Disconnected from SSH host".to_string())
 848                                        } else {
 849                                            Some("Disconnected from remote project".to_string())
 850                                        },
 851                                        ErrorCode::UnsharedItem => Some(format!(
 852                                            "{} is not shared by the host. This could be because it has been marked as `private`",
 853                                            file_path.display(path_style)
 854                                        )),
 855                                        // See note in worktree.rs where this error originates. Returning Some in this case prevents
 856                                        // the error popup from saying "Try Again", which is a red herring in this case
 857                                        ErrorCode::Internal if e.to_string().contains("File is too large to load") => Some(e.to_string()),
 858                                        _ => None,
 859                                    }
 860                                });
 861
 862                            if let Some(project_panel) = project_panel.upgrade() {
 863                                // Always select and mark the entry, regardless of whether it is opened or not.
 864                                project_panel.update(cx, |project_panel, _| {
 865                                    let entry = SelectedEntry { worktree_id, entry_id };
 866                                    project_panel.marked_entries.clear();
 867                                    project_panel.marked_entries.push(entry);
 868                                    project_panel.state.selection = Some(entry);
 869                                });
 870                                if !focus_opened_item {
 871                                    let focus_handle = project_panel.read(cx).focus_handle.clone();
 872                                    window.focus(&focus_handle);
 873                                }
 874                            }
 875                        }
 876                }
 877                &Event::SplitEntry {
 878                    entry_id,
 879                    allow_preview,
 880                    split_direction,
 881                } => {
 882                    if let Some(worktree) = project.read(cx).worktree_for_entry(entry_id, cx)
 883                        && let Some(entry) = worktree.read(cx).entry_for_id(entry_id) {
 884                            workspace
 885                                .split_path_preview(
 886                                    ProjectPath {
 887                                        worktree_id: worktree.read(cx).id(),
 888                                        path: entry.path.clone(),
 889                                    },
 890                                    allow_preview,
 891                                    split_direction,
 892                                    window, cx,
 893                                )
 894                                .detach_and_log_err(cx);
 895                        }
 896                }
 897
 898                _ => {}
 899            }
 900        })
 901        .detach();
 902
 903        project_panel
 904    }
 905
 906    pub async fn load(
 907        workspace: WeakEntity<Workspace>,
 908        mut cx: AsyncWindowContext,
 909    ) -> Result<Entity<Self>> {
 910        let serialized_panel = match workspace
 911            .read_with(&cx, |workspace, _| {
 912                ProjectPanel::serialization_key(workspace)
 913            })
 914            .ok()
 915            .flatten()
 916        {
 917            Some(serialization_key) => cx
 918                .background_spawn(async move { KEY_VALUE_STORE.read_kvp(&serialization_key) })
 919                .await
 920                .context("loading project panel")
 921                .log_err()
 922                .flatten()
 923                .map(|panel| serde_json::from_str::<SerializedProjectPanel>(&panel))
 924                .transpose()
 925                .log_err()
 926                .flatten(),
 927            None => None,
 928        };
 929
 930        workspace.update_in(&mut cx, |workspace, window, cx| {
 931            let panel = ProjectPanel::new(workspace, window, cx);
 932            if let Some(serialized_panel) = serialized_panel {
 933                panel.update(cx, |panel, cx| {
 934                    panel.width = serialized_panel.width.map(|px| px.round());
 935                    cx.notify();
 936                });
 937            }
 938            panel
 939        })
 940    }
 941
 942    fn update_diagnostics(&mut self, cx: &mut Context<Self>) {
 943        let mut diagnostics: HashMap<(WorktreeId, Arc<RelPath>), DiagnosticSeverity> =
 944            Default::default();
 945        let show_diagnostics_setting = ProjectPanelSettings::get_global(cx).show_diagnostics;
 946
 947        if show_diagnostics_setting != ShowDiagnostics::Off {
 948            self.project
 949                .read(cx)
 950                .diagnostic_summaries(false, cx)
 951                .filter_map(|(path, _, diagnostic_summary)| {
 952                    if diagnostic_summary.error_count > 0 {
 953                        Some((path, DiagnosticSeverity::ERROR))
 954                    } else if show_diagnostics_setting == ShowDiagnostics::All
 955                        && diagnostic_summary.warning_count > 0
 956                    {
 957                        Some((path, DiagnosticSeverity::WARNING))
 958                    } else {
 959                        None
 960                    }
 961                })
 962                .for_each(|(project_path, diagnostic_severity)| {
 963                    let ancestors = project_path.path.ancestors().collect::<Vec<_>>();
 964                    for path in ancestors.into_iter().rev() {
 965                        Self::update_strongest_diagnostic_severity(
 966                            &mut diagnostics,
 967                            &project_path,
 968                            path.into(),
 969                            diagnostic_severity,
 970                        );
 971                    }
 972                });
 973        }
 974        self.diagnostics = diagnostics;
 975    }
 976
 977    fn update_strongest_diagnostic_severity(
 978        diagnostics: &mut HashMap<(WorktreeId, Arc<RelPath>), DiagnosticSeverity>,
 979        project_path: &ProjectPath,
 980        path_buffer: Arc<RelPath>,
 981        diagnostic_severity: DiagnosticSeverity,
 982    ) {
 983        diagnostics
 984            .entry((project_path.worktree_id, path_buffer))
 985            .and_modify(|strongest_diagnostic_severity| {
 986                *strongest_diagnostic_severity =
 987                    cmp::min(*strongest_diagnostic_severity, diagnostic_severity);
 988            })
 989            .or_insert(diagnostic_severity);
 990    }
 991
 992    fn serialization_key(workspace: &Workspace) -> Option<String> {
 993        workspace
 994            .database_id()
 995            .map(|id| i64::from(id).to_string())
 996            .or(workspace.session_id())
 997            .map(|id| format!("{}-{:?}", PROJECT_PANEL_KEY, id))
 998    }
 999
1000    fn serialize(&mut self, cx: &mut Context<Self>) {
1001        let Some(serialization_key) = self
1002            .workspace
1003            .read_with(cx, |workspace, _| {
1004                ProjectPanel::serialization_key(workspace)
1005            })
1006            .ok()
1007            .flatten()
1008        else {
1009            return;
1010        };
1011        let width = self.width;
1012        self.pending_serialization = cx.background_spawn(
1013            async move {
1014                KEY_VALUE_STORE
1015                    .write_kvp(
1016                        serialization_key,
1017                        serde_json::to_string(&SerializedProjectPanel { width })?,
1018                    )
1019                    .await?;
1020                anyhow::Ok(())
1021            }
1022            .log_err(),
1023        );
1024    }
1025
1026    fn focus_in(&mut self, window: &mut Window, cx: &mut Context<Self>) {
1027        if !self.focus_handle.contains_focused(window, cx) {
1028            cx.emit(Event::Focus);
1029        }
1030    }
1031
1032    fn deploy_context_menu(
1033        &mut self,
1034        position: Point<Pixels>,
1035        entry_id: ProjectEntryId,
1036        window: &mut Window,
1037        cx: &mut Context<Self>,
1038    ) {
1039        let project = self.project.read(cx);
1040
1041        let worktree_id = if let Some(id) = project.worktree_id_for_entry(entry_id, cx) {
1042            id
1043        } else {
1044            return;
1045        };
1046
1047        self.state.selection = Some(SelectedEntry {
1048            worktree_id,
1049            entry_id,
1050        });
1051
1052        if let Some((worktree, entry)) = self.selected_sub_entry(cx) {
1053            let auto_fold_dirs = ProjectPanelSettings::get_global(cx).auto_fold_dirs;
1054            let worktree = worktree.read(cx);
1055            let is_root = Some(entry) == worktree.root_entry();
1056            let is_dir = entry.is_dir();
1057            let is_foldable = auto_fold_dirs && self.is_foldable(entry, worktree);
1058            let is_unfoldable = auto_fold_dirs && self.is_unfoldable(entry, worktree);
1059            let is_read_only = project.is_read_only(cx);
1060            let is_remote = project.is_remote();
1061            let is_local = project.is_local();
1062
1063            let settings = ProjectPanelSettings::get_global(cx);
1064            let visible_worktrees_count = project.visible_worktrees(cx).count();
1065            let should_hide_rename = is_root
1066                && (cfg!(target_os = "windows")
1067                    || (settings.hide_root && visible_worktrees_count == 1));
1068            let should_show_compare = !is_dir && self.file_abs_paths_to_diff(cx).is_some();
1069
1070            let has_git_repo = !is_dir && {
1071                let project_path = project::ProjectPath {
1072                    worktree_id,
1073                    path: entry.path.clone(),
1074                };
1075                project
1076                    .git_store()
1077                    .read(cx)
1078                    .repository_and_path_for_project_path(&project_path, cx)
1079                    .is_some()
1080            };
1081
1082            let context_menu = ContextMenu::build(window, cx, |menu, _, _| {
1083                menu.context(self.focus_handle.clone()).map(|menu| {
1084                    if is_read_only {
1085                        menu.when(is_dir, |menu| {
1086                            menu.action("Search Inside", Box::new(NewSearchInDirectory))
1087                        })
1088                    } else {
1089                        menu.action("New File", Box::new(NewFile))
1090                            .action("New Folder", Box::new(NewDirectory))
1091                            .separator()
1092                            .when(is_local && cfg!(target_os = "macos"), |menu| {
1093                                menu.action("Reveal in Finder", Box::new(RevealInFileManager))
1094                            })
1095                            .when(is_local && cfg!(not(target_os = "macos")), |menu| {
1096                                menu.action("Reveal in File Manager", Box::new(RevealInFileManager))
1097                            })
1098                            .when(is_local, |menu| {
1099                                menu.action("Open in Default App", Box::new(OpenWithSystem))
1100                            })
1101                            .action("Open in Terminal", Box::new(OpenInTerminal))
1102                            .when(is_dir, |menu| {
1103                                menu.separator()
1104                                    .action("Find in Folder…", Box::new(NewSearchInDirectory))
1105                            })
1106                            .when(is_unfoldable, |menu| {
1107                                menu.action("Unfold Directory", Box::new(UnfoldDirectory))
1108                            })
1109                            .when(is_foldable, |menu| {
1110                                menu.action("Fold Directory", Box::new(FoldDirectory))
1111                            })
1112                            .when(should_show_compare, |menu| {
1113                                menu.separator()
1114                                    .action("Compare marked files", Box::new(CompareMarkedFiles))
1115                            })
1116                            .separator()
1117                            .action("Cut", Box::new(Cut))
1118                            .action("Copy", Box::new(Copy))
1119                            .action("Duplicate", Box::new(Duplicate))
1120                            // TODO: Paste should always be visible, cbut disabled when clipboard is empty
1121                            .action_disabled_when(
1122                                self.clipboard.as_ref().is_none(),
1123                                "Paste",
1124                                Box::new(Paste),
1125                            )
1126                            .separator()
1127                            .action("Copy Path", Box::new(zed_actions::workspace::CopyPath))
1128                            .action(
1129                                "Copy Relative Path",
1130                                Box::new(zed_actions::workspace::CopyRelativePath),
1131                            )
1132                            .when(has_git_repo, |menu| {
1133                                menu.separator().action("File History", Box::new(git::FileHistory))
1134                            })
1135                            .when(!should_hide_rename, |menu| {
1136                                menu.separator().action("Rename", Box::new(Rename))
1137                            })
1138                            .when(!is_root && !is_remote, |menu| {
1139                                menu.action("Trash", Box::new(Trash { skip_prompt: false }))
1140                            })
1141                            .when(!is_root, |menu| {
1142                                menu.action("Delete", Box::new(Delete { skip_prompt: false }))
1143                            })
1144                            .when(!is_remote && is_root, |menu| {
1145                                menu.separator()
1146                                    .action(
1147                                        "Add Folder to Project…",
1148                                        Box::new(workspace::AddFolderToProject),
1149                                    )
1150                                    .action("Remove from Project", Box::new(RemoveFromProject))
1151                            })
1152                            .when(is_root, |menu| {
1153                                menu.separator()
1154                                    .action("Collapse All", Box::new(CollapseAllEntries))
1155                            })
1156                    }
1157                })
1158            });
1159
1160            window.focus(&context_menu.focus_handle(cx));
1161            let subscription = cx.subscribe(&context_menu, |this, _, _: &DismissEvent, cx| {
1162                this.context_menu.take();
1163                cx.notify();
1164            });
1165            self.context_menu = Some((context_menu, position, subscription));
1166        }
1167
1168        cx.notify();
1169    }
1170
1171    fn is_unfoldable(&self, entry: &Entry, worktree: &Worktree) -> bool {
1172        if !entry.is_dir() || self.state.unfolded_dir_ids.contains(&entry.id) {
1173            return false;
1174        }
1175
1176        if let Some(parent_path) = entry.path.parent() {
1177            let snapshot = worktree.snapshot();
1178            let mut child_entries = snapshot.child_entries(parent_path);
1179            if let Some(child) = child_entries.next()
1180                && child_entries.next().is_none()
1181            {
1182                return child.kind.is_dir();
1183            }
1184        };
1185        false
1186    }
1187
1188    fn is_foldable(&self, entry: &Entry, worktree: &Worktree) -> bool {
1189        if entry.is_dir() {
1190            let snapshot = worktree.snapshot();
1191
1192            let mut child_entries = snapshot.child_entries(&entry.path);
1193            if let Some(child) = child_entries.next()
1194                && child_entries.next().is_none()
1195            {
1196                return child.kind.is_dir();
1197            }
1198        }
1199        false
1200    }
1201
1202    fn expand_selected_entry(
1203        &mut self,
1204        _: &ExpandSelectedEntry,
1205        window: &mut Window,
1206        cx: &mut Context<Self>,
1207    ) {
1208        if let Some((worktree, entry)) = self.selected_entry(cx) {
1209            if let Some(folded_ancestors) = self.state.ancestors.get_mut(&entry.id)
1210                && folded_ancestors.current_ancestor_depth > 0
1211            {
1212                folded_ancestors.current_ancestor_depth -= 1;
1213                cx.notify();
1214                return;
1215            }
1216            if entry.is_dir() {
1217                let worktree_id = worktree.id();
1218                let entry_id = entry.id;
1219                let expanded_dir_ids = if let Some(expanded_dir_ids) =
1220                    self.state.expanded_dir_ids.get_mut(&worktree_id)
1221                {
1222                    expanded_dir_ids
1223                } else {
1224                    return;
1225                };
1226
1227                match expanded_dir_ids.binary_search(&entry_id) {
1228                    Ok(_) => self.select_next(&SelectNext, window, cx),
1229                    Err(ix) => {
1230                        self.project.update(cx, |project, cx| {
1231                            project.expand_entry(worktree_id, entry_id, cx);
1232                        });
1233
1234                        expanded_dir_ids.insert(ix, entry_id);
1235                        self.update_visible_entries(None, false, false, window, cx);
1236                        cx.notify();
1237                    }
1238                }
1239            }
1240        }
1241    }
1242
1243    fn collapse_selected_entry(
1244        &mut self,
1245        _: &CollapseSelectedEntry,
1246        window: &mut Window,
1247        cx: &mut Context<Self>,
1248    ) {
1249        let Some((worktree, entry)) = self.selected_entry_handle(cx) else {
1250            return;
1251        };
1252        self.collapse_entry(entry.clone(), worktree, window, cx)
1253    }
1254
1255    fn collapse_entry(
1256        &mut self,
1257        entry: Entry,
1258        worktree: Entity<Worktree>,
1259        window: &mut Window,
1260        cx: &mut Context<Self>,
1261    ) {
1262        let worktree = worktree.read(cx);
1263        if let Some(folded_ancestors) = self.state.ancestors.get_mut(&entry.id)
1264            && folded_ancestors.current_ancestor_depth + 1 < folded_ancestors.max_ancestor_depth()
1265        {
1266            folded_ancestors.current_ancestor_depth += 1;
1267            cx.notify();
1268            return;
1269        }
1270        let worktree_id = worktree.id();
1271        let expanded_dir_ids =
1272            if let Some(expanded_dir_ids) = self.state.expanded_dir_ids.get_mut(&worktree_id) {
1273                expanded_dir_ids
1274            } else {
1275                return;
1276            };
1277
1278        let mut entry = &entry;
1279        loop {
1280            let entry_id = entry.id;
1281            match expanded_dir_ids.binary_search(&entry_id) {
1282                Ok(ix) => {
1283                    expanded_dir_ids.remove(ix);
1284                    self.update_visible_entries(
1285                        Some((worktree_id, entry_id)),
1286                        false,
1287                        false,
1288                        window,
1289                        cx,
1290                    );
1291                    cx.notify();
1292                    break;
1293                }
1294                Err(_) => {
1295                    if let Some(parent_entry) =
1296                        entry.path.parent().and_then(|p| worktree.entry_for_path(p))
1297                    {
1298                        entry = parent_entry;
1299                    } else {
1300                        break;
1301                    }
1302                }
1303            }
1304        }
1305    }
1306
1307    pub fn collapse_all_entries(
1308        &mut self,
1309        _: &CollapseAllEntries,
1310        window: &mut Window,
1311        cx: &mut Context<Self>,
1312    ) {
1313        // By keeping entries for fully collapsed worktrees, we avoid expanding them within update_visible_entries
1314        // (which is it's default behavior when there's no entry for a worktree in expanded_dir_ids).
1315        let multiple_worktrees = self.project.read(cx).worktrees(cx).count() > 1;
1316        let project = self.project.read(cx);
1317
1318        self.state
1319            .expanded_dir_ids
1320            .iter_mut()
1321            .for_each(|(worktree_id, expanded_entries)| {
1322                if multiple_worktrees {
1323                    *expanded_entries = Default::default();
1324                    return;
1325                }
1326
1327                let root_entry_id = project
1328                    .worktree_for_id(*worktree_id, cx)
1329                    .map(|worktree| worktree.read(cx).snapshot())
1330                    .and_then(|worktree_snapshot| {
1331                        worktree_snapshot.root_entry().map(|entry| entry.id)
1332                    });
1333
1334                match root_entry_id {
1335                    Some(id) => {
1336                        expanded_entries.retain(|entry_id| entry_id == &id);
1337                    }
1338                    None => *expanded_entries = Default::default(),
1339                };
1340            });
1341
1342        self.update_visible_entries(None, false, false, window, cx);
1343        cx.notify();
1344    }
1345
1346    fn toggle_expanded(
1347        &mut self,
1348        entry_id: ProjectEntryId,
1349        window: &mut Window,
1350        cx: &mut Context<Self>,
1351    ) {
1352        if let Some(worktree_id) = self.project.read(cx).worktree_id_for_entry(entry_id, cx)
1353            && let Some(expanded_dir_ids) = self.state.expanded_dir_ids.get_mut(&worktree_id)
1354        {
1355            self.project.update(cx, |project, cx| {
1356                match expanded_dir_ids.binary_search(&entry_id) {
1357                    Ok(ix) => {
1358                        expanded_dir_ids.remove(ix);
1359                    }
1360                    Err(ix) => {
1361                        project.expand_entry(worktree_id, entry_id, cx);
1362                        expanded_dir_ids.insert(ix, entry_id);
1363                    }
1364                }
1365            });
1366            self.update_visible_entries(Some((worktree_id, entry_id)), false, false, window, cx);
1367            window.focus(&self.focus_handle);
1368            cx.notify();
1369        }
1370    }
1371
1372    fn toggle_expand_all(
1373        &mut self,
1374        entry_id: ProjectEntryId,
1375        window: &mut Window,
1376        cx: &mut Context<Self>,
1377    ) {
1378        if let Some(worktree_id) = self.project.read(cx).worktree_id_for_entry(entry_id, cx)
1379            && let Some(expanded_dir_ids) = self.state.expanded_dir_ids.get_mut(&worktree_id)
1380        {
1381            match expanded_dir_ids.binary_search(&entry_id) {
1382                Ok(_ix) => {
1383                    self.collapse_all_for_entry(worktree_id, entry_id, cx);
1384                }
1385                Err(_ix) => {
1386                    self.expand_all_for_entry(worktree_id, entry_id, cx);
1387                }
1388            }
1389            self.update_visible_entries(Some((worktree_id, entry_id)), false, false, window, cx);
1390            window.focus(&self.focus_handle);
1391            cx.notify();
1392        }
1393    }
1394
1395    fn expand_all_for_entry(
1396        &mut self,
1397        worktree_id: WorktreeId,
1398        entry_id: ProjectEntryId,
1399        cx: &mut Context<Self>,
1400    ) {
1401        self.project.update(cx, |project, cx| {
1402            if let Some((worktree, expanded_dir_ids)) = project
1403                .worktree_for_id(worktree_id, cx)
1404                .zip(self.state.expanded_dir_ids.get_mut(&worktree_id))
1405            {
1406                if let Some(task) = project.expand_all_for_entry(worktree_id, entry_id, cx) {
1407                    task.detach();
1408                }
1409
1410                let worktree = worktree.read(cx);
1411
1412                if let Some(mut entry) = worktree.entry_for_id(entry_id) {
1413                    loop {
1414                        if let Err(ix) = expanded_dir_ids.binary_search(&entry.id) {
1415                            expanded_dir_ids.insert(ix, entry.id);
1416                        }
1417
1418                        if let Some(parent_entry) =
1419                            entry.path.parent().and_then(|p| worktree.entry_for_path(p))
1420                        {
1421                            entry = parent_entry;
1422                        } else {
1423                            break;
1424                        }
1425                    }
1426                }
1427            }
1428        });
1429    }
1430
1431    fn collapse_all_for_entry(
1432        &mut self,
1433        worktree_id: WorktreeId,
1434        entry_id: ProjectEntryId,
1435        cx: &mut Context<Self>,
1436    ) {
1437        self.project.update(cx, |project, cx| {
1438            if let Some((worktree, expanded_dir_ids)) = project
1439                .worktree_for_id(worktree_id, cx)
1440                .zip(self.state.expanded_dir_ids.get_mut(&worktree_id))
1441            {
1442                let worktree = worktree.read(cx);
1443                let mut dirs_to_collapse = vec![entry_id];
1444                let auto_fold_enabled = ProjectPanelSettings::get_global(cx).auto_fold_dirs;
1445                while let Some(current_id) = dirs_to_collapse.pop() {
1446                    let Some(current_entry) = worktree.entry_for_id(current_id) else {
1447                        continue;
1448                    };
1449                    if let Ok(ix) = expanded_dir_ids.binary_search(&current_id) {
1450                        expanded_dir_ids.remove(ix);
1451                    }
1452                    if auto_fold_enabled {
1453                        self.state.unfolded_dir_ids.remove(&current_id);
1454                    }
1455                    for child in worktree.child_entries(&current_entry.path) {
1456                        if child.is_dir() {
1457                            dirs_to_collapse.push(child.id);
1458                        }
1459                    }
1460                }
1461            }
1462        });
1463    }
1464
1465    fn select_previous(&mut self, _: &SelectPrevious, window: &mut Window, cx: &mut Context<Self>) {
1466        if let Some(edit_state) = &self.state.edit_state
1467            && edit_state.processing_filename.is_none()
1468        {
1469            self.filename_editor.update(cx, |editor, cx| {
1470                editor.move_to_beginning_of_line(
1471                    &editor::actions::MoveToBeginningOfLine {
1472                        stop_at_soft_wraps: false,
1473                        stop_at_indent: false,
1474                    },
1475                    window,
1476                    cx,
1477                );
1478            });
1479            return;
1480        }
1481        if let Some(selection) = self.state.selection {
1482            let (mut worktree_ix, mut entry_ix, _) =
1483                self.index_for_selection(selection).unwrap_or_default();
1484            if entry_ix > 0 {
1485                entry_ix -= 1;
1486            } else if worktree_ix > 0 {
1487                worktree_ix -= 1;
1488                entry_ix = self.state.visible_entries[worktree_ix].entries.len() - 1;
1489            } else {
1490                return;
1491            }
1492
1493            let VisibleEntriesForWorktree {
1494                worktree_id,
1495                entries,
1496                ..
1497            } = &self.state.visible_entries[worktree_ix];
1498            let selection = SelectedEntry {
1499                worktree_id: *worktree_id,
1500                entry_id: entries[entry_ix].id,
1501            };
1502            self.state.selection = Some(selection);
1503            if window.modifiers().shift {
1504                self.marked_entries.push(selection);
1505            }
1506            self.autoscroll(cx);
1507            cx.notify();
1508        } else {
1509            self.select_first(&SelectFirst {}, window, cx);
1510        }
1511    }
1512
1513    fn confirm(&mut self, _: &Confirm, window: &mut Window, cx: &mut Context<Self>) {
1514        if let Some(task) = self.confirm_edit(true, window, cx) {
1515            task.detach_and_notify_err(window, cx);
1516        }
1517    }
1518
1519    fn open(&mut self, _: &Open, window: &mut Window, cx: &mut Context<Self>) {
1520        let preview_tabs_enabled = PreviewTabsSettings::get_global(cx).enabled;
1521        self.open_internal(true, !preview_tabs_enabled, None, window, cx);
1522    }
1523
1524    fn open_permanent(&mut self, _: &OpenPermanent, window: &mut Window, cx: &mut Context<Self>) {
1525        self.open_internal(false, true, None, window, cx);
1526    }
1527
1528    fn open_split_vertical(
1529        &mut self,
1530        _: &OpenSplitVertical,
1531        window: &mut Window,
1532        cx: &mut Context<Self>,
1533    ) {
1534        self.open_internal(false, true, Some(SplitDirection::vertical(cx)), window, cx);
1535    }
1536
1537    fn open_split_horizontal(
1538        &mut self,
1539        _: &OpenSplitHorizontal,
1540        window: &mut Window,
1541        cx: &mut Context<Self>,
1542    ) {
1543        self.open_internal(
1544            false,
1545            true,
1546            Some(SplitDirection::horizontal(cx)),
1547            window,
1548            cx,
1549        );
1550    }
1551
1552    fn open_internal(
1553        &mut self,
1554        allow_preview: bool,
1555        focus_opened_item: bool,
1556        split_direction: Option<SplitDirection>,
1557        window: &mut Window,
1558        cx: &mut Context<Self>,
1559    ) {
1560        if let Some((_, entry)) = self.selected_entry(cx) {
1561            if entry.is_file() {
1562                if split_direction.is_some() {
1563                    self.split_entry(entry.id, allow_preview, split_direction, cx);
1564                } else {
1565                    self.open_entry(entry.id, focus_opened_item, allow_preview, cx);
1566                }
1567                cx.notify();
1568            } else {
1569                self.toggle_expanded(entry.id, window, cx);
1570            }
1571        }
1572    }
1573
1574    fn populate_validation_error(&mut self, cx: &mut Context<Self>) {
1575        let edit_state = match self.state.edit_state.as_mut() {
1576            Some(state) => state,
1577            None => return,
1578        };
1579        let filename = self.filename_editor.read(cx).text(cx);
1580        if !filename.is_empty() {
1581            if filename.is_empty() {
1582                edit_state.validation_state =
1583                    ValidationState::Error("File or directory name cannot be empty.".to_string());
1584                cx.notify();
1585                return;
1586            }
1587
1588            let trimmed_filename = filename.trim();
1589            if trimmed_filename != filename {
1590                edit_state.validation_state = ValidationState::Warning(
1591                    "File or directory name contains leading or trailing whitespace.".to_string(),
1592                );
1593                cx.notify();
1594                return;
1595            }
1596            let trimmed_filename = trimmed_filename.trim_start_matches('/');
1597
1598            let Ok(filename) = RelPath::unix(trimmed_filename) else {
1599                edit_state.validation_state = ValidationState::Warning(
1600                    "File or directory name contains leading or trailing whitespace.".to_string(),
1601                );
1602                cx.notify();
1603                return;
1604            };
1605
1606            if let Some(worktree) = self
1607                .project
1608                .read(cx)
1609                .worktree_for_id(edit_state.worktree_id, cx)
1610                && let Some(entry) = worktree.read(cx).entry_for_id(edit_state.entry_id)
1611            {
1612                let mut already_exists = false;
1613                if edit_state.is_new_entry() {
1614                    let new_path = entry.path.join(filename);
1615                    if worktree.read(cx).entry_for_path(&new_path).is_some() {
1616                        already_exists = true;
1617                    }
1618                } else {
1619                    let new_path = if let Some(parent) = entry.path.clone().parent() {
1620                        parent.join(&filename)
1621                    } else {
1622                        filename.into()
1623                    };
1624                    if let Some(existing) = worktree.read(cx).entry_for_path(&new_path)
1625                        && existing.id != entry.id
1626                    {
1627                        already_exists = true;
1628                    }
1629                };
1630                if already_exists {
1631                    edit_state.validation_state = ValidationState::Error(format!(
1632                        "File or directory '{}' already exists at location. Please choose a different name.",
1633                        filename.as_unix_str()
1634                    ));
1635                    cx.notify();
1636                    return;
1637                }
1638            }
1639        }
1640        edit_state.validation_state = ValidationState::None;
1641        cx.notify();
1642    }
1643
1644    fn confirm_edit(
1645        &mut self,
1646        refocus: bool,
1647        window: &mut Window,
1648        cx: &mut Context<Self>,
1649    ) -> Option<Task<Result<()>>> {
1650        let edit_state = self.state.edit_state.as_mut()?;
1651        let worktree_id = edit_state.worktree_id;
1652        let is_new_entry = edit_state.is_new_entry();
1653        let filename = self.filename_editor.read(cx).text(cx);
1654        if filename.trim().is_empty() {
1655            return None;
1656        }
1657
1658        let path_style = self.project.read(cx).path_style(cx);
1659        let filename_indicates_dir = if path_style.is_windows() {
1660            filename.ends_with('/') || filename.ends_with('\\')
1661        } else {
1662            filename.ends_with('/')
1663        };
1664        let filename = if path_style.is_windows() {
1665            filename.trim_start_matches(&['/', '\\'])
1666        } else {
1667            filename.trim_start_matches('/')
1668        };
1669        let filename = RelPath::new(filename.as_ref(), path_style).ok()?.into_arc();
1670
1671        edit_state.is_dir =
1672            edit_state.is_dir || (edit_state.is_new_entry() && filename_indicates_dir);
1673        let is_dir = edit_state.is_dir;
1674        let worktree = self.project.read(cx).worktree_for_id(worktree_id, cx)?;
1675        let entry = worktree.read(cx).entry_for_id(edit_state.entry_id)?.clone();
1676
1677        let edit_task;
1678        let edited_entry_id;
1679        if is_new_entry {
1680            self.state.selection = Some(SelectedEntry {
1681                worktree_id,
1682                entry_id: NEW_ENTRY_ID,
1683            });
1684            let new_path = entry.path.join(&filename);
1685            if worktree.read(cx).entry_for_path(&new_path).is_some() {
1686                return None;
1687            }
1688
1689            edited_entry_id = NEW_ENTRY_ID;
1690            edit_task = self.project.update(cx, |project, cx| {
1691                project.create_entry((worktree_id, new_path), is_dir, cx)
1692            });
1693        } else {
1694            let new_path = if let Some(parent) = entry.path.clone().parent() {
1695                parent.join(&filename)
1696            } else {
1697                filename.clone()
1698            };
1699            if let Some(existing) = worktree.read(cx).entry_for_path(&new_path) {
1700                if existing.id == entry.id && refocus {
1701                    window.focus(&self.focus_handle);
1702                }
1703                return None;
1704            }
1705            edited_entry_id = entry.id;
1706            edit_task = self.project.update(cx, |project, cx| {
1707                project.rename_entry(entry.id, (worktree_id, new_path).into(), cx)
1708            });
1709        };
1710
1711        if refocus {
1712            window.focus(&self.focus_handle);
1713        }
1714        edit_state.processing_filename = Some(filename);
1715        cx.notify();
1716
1717        Some(cx.spawn_in(window, async move |project_panel, cx| {
1718            let new_entry = edit_task.await;
1719            project_panel.update(cx, |project_panel, cx| {
1720                project_panel.state.edit_state = None;
1721                cx.notify();
1722            })?;
1723
1724            match new_entry {
1725                Err(e) => {
1726                    project_panel.update_in( cx, |project_panel, window, cx| {
1727                        project_panel.marked_entries.clear();
1728                        project_panel.update_visible_entries(None, false, false, window, cx);
1729                    }).ok();
1730                    Err(e)?;
1731                }
1732                Ok(CreatedEntry::Included(new_entry)) => {
1733                    project_panel.update_in( cx, |project_panel, window, cx| {
1734                        if let Some(selection) = &mut project_panel.state.selection
1735                            && selection.entry_id == edited_entry_id {
1736                                selection.worktree_id = worktree_id;
1737                                selection.entry_id = new_entry.id;
1738                                project_panel.marked_entries.clear();
1739                                project_panel.expand_to_selection(cx);
1740                            }
1741                        project_panel.update_visible_entries(None, false, false, window, cx);
1742                        if is_new_entry && !is_dir {
1743                            project_panel.open_entry(new_entry.id, true, false, cx);
1744                        }
1745                        cx.notify();
1746                    })?;
1747                }
1748                Ok(CreatedEntry::Excluded { abs_path }) => {
1749                    if let Some(open_task) = project_panel
1750                        .update_in(cx, |project_panel, window, cx| {
1751                            project_panel.marked_entries.clear();
1752                            project_panel.update_visible_entries(None, false, false, window, cx);
1753
1754                            if is_dir {
1755                                project_panel.project.update(cx, |_, cx| {
1756                                    cx.emit(project::Event::Toast {
1757                                        notification_id: "excluded-directory".into(),
1758                                        message: format!("Created an excluded directory at {abs_path:?}.\nAlter `file_scan_exclusions` in the settings to show it in the panel")
1759                                    })
1760                                });
1761                                None
1762                            } else {
1763                                project_panel
1764                                    .workspace
1765                                    .update(cx, |workspace, cx| {
1766                                        workspace.open_abs_path(abs_path, OpenOptions { visible: Some(OpenVisible::All), ..Default::default() }, window, cx)
1767                                    })
1768                                    .ok()
1769                            }
1770                        })
1771                        .ok()
1772                        .flatten()
1773                    {
1774                        let _ = open_task.await?;
1775                    }
1776                }
1777            }
1778            Ok(())
1779        }))
1780    }
1781
1782    fn cancel(&mut self, _: &menu::Cancel, window: &mut Window, cx: &mut Context<Self>) {
1783        if cx.stop_active_drag(window) {
1784            self.drag_target_entry.take();
1785            self.hover_expand_task.take();
1786            return;
1787        }
1788
1789        let previous_edit_state = self.state.edit_state.take();
1790        self.update_visible_entries(None, false, false, window, cx);
1791        self.marked_entries.clear();
1792
1793        if let Some(previously_focused) =
1794            previous_edit_state.and_then(|edit_state| edit_state.previously_focused)
1795        {
1796            self.state.selection = Some(previously_focused);
1797            self.autoscroll(cx);
1798        }
1799
1800        window.focus(&self.focus_handle);
1801        cx.notify();
1802    }
1803
1804    fn open_entry(
1805        &mut self,
1806        entry_id: ProjectEntryId,
1807        focus_opened_item: bool,
1808        allow_preview: bool,
1809
1810        cx: &mut Context<Self>,
1811    ) {
1812        cx.emit(Event::OpenedEntry {
1813            entry_id,
1814            focus_opened_item,
1815            allow_preview,
1816        });
1817    }
1818
1819    fn split_entry(
1820        &mut self,
1821        entry_id: ProjectEntryId,
1822        allow_preview: bool,
1823        split_direction: Option<SplitDirection>,
1824
1825        cx: &mut Context<Self>,
1826    ) {
1827        cx.emit(Event::SplitEntry {
1828            entry_id,
1829            allow_preview,
1830            split_direction,
1831        });
1832    }
1833
1834    fn new_file(&mut self, _: &NewFile, window: &mut Window, cx: &mut Context<Self>) {
1835        self.add_entry(false, window, cx)
1836    }
1837
1838    fn new_directory(&mut self, _: &NewDirectory, window: &mut Window, cx: &mut Context<Self>) {
1839        self.add_entry(true, window, cx)
1840    }
1841
1842    fn add_entry(&mut self, is_dir: bool, window: &mut Window, cx: &mut Context<Self>) {
1843        let Some((worktree_id, entry_id)) = self
1844            .state
1845            .selection
1846            .map(|entry| (entry.worktree_id, entry.entry_id))
1847            .or_else(|| {
1848                let entry_id = self.state.last_worktree_root_id?;
1849                let worktree_id = self
1850                    .project
1851                    .read(cx)
1852                    .worktree_for_entry(entry_id, cx)?
1853                    .read(cx)
1854                    .id();
1855
1856                self.state.selection = Some(SelectedEntry {
1857                    worktree_id,
1858                    entry_id,
1859                });
1860
1861                Some((worktree_id, entry_id))
1862            })
1863        else {
1864            return;
1865        };
1866
1867        let directory_id;
1868        let new_entry_id = self.resolve_entry(entry_id);
1869        if let Some((worktree, expanded_dir_ids)) = self
1870            .project
1871            .read(cx)
1872            .worktree_for_id(worktree_id, cx)
1873            .zip(self.state.expanded_dir_ids.get_mut(&worktree_id))
1874        {
1875            let worktree = worktree.read(cx);
1876            if let Some(mut entry) = worktree.entry_for_id(new_entry_id) {
1877                loop {
1878                    if entry.is_dir() {
1879                        if let Err(ix) = expanded_dir_ids.binary_search(&entry.id) {
1880                            expanded_dir_ids.insert(ix, entry.id);
1881                        }
1882                        directory_id = entry.id;
1883                        break;
1884                    } else {
1885                        if let Some(parent_path) = entry.path.parent()
1886                            && let Some(parent_entry) = worktree.entry_for_path(parent_path)
1887                        {
1888                            entry = parent_entry;
1889                            continue;
1890                        }
1891                        return;
1892                    }
1893                }
1894            } else {
1895                return;
1896            };
1897        } else {
1898            return;
1899        };
1900
1901        self.marked_entries.clear();
1902        self.state.edit_state = Some(EditState {
1903            worktree_id,
1904            entry_id: directory_id,
1905            leaf_entry_id: None,
1906            is_dir,
1907            processing_filename: None,
1908            previously_focused: self.state.selection,
1909            depth: 0,
1910            validation_state: ValidationState::None,
1911        });
1912        self.update_visible_entries(Some((worktree_id, NEW_ENTRY_ID)), true, true, window, cx);
1913        cx.notify();
1914    }
1915
1916    fn unflatten_entry_id(&self, leaf_entry_id: ProjectEntryId) -> ProjectEntryId {
1917        if let Some(ancestors) = self.state.ancestors.get(&leaf_entry_id) {
1918            ancestors
1919                .ancestors
1920                .get(ancestors.current_ancestor_depth)
1921                .copied()
1922                .unwrap_or(leaf_entry_id)
1923        } else {
1924            leaf_entry_id
1925        }
1926    }
1927
1928    fn rename_impl(
1929        &mut self,
1930        selection: Option<Range<usize>>,
1931        window: &mut Window,
1932        cx: &mut Context<Self>,
1933    ) {
1934        if let Some(SelectedEntry {
1935            worktree_id,
1936            entry_id,
1937        }) = self.state.selection
1938            && let Some(worktree) = self.project.read(cx).worktree_for_id(worktree_id, cx)
1939        {
1940            let sub_entry_id = self.unflatten_entry_id(entry_id);
1941            if let Some(entry) = worktree.read(cx).entry_for_id(sub_entry_id) {
1942                #[cfg(target_os = "windows")]
1943                if Some(entry) == worktree.read(cx).root_entry() {
1944                    return;
1945                }
1946
1947                if Some(entry) == worktree.read(cx).root_entry() {
1948                    let settings = ProjectPanelSettings::get_global(cx);
1949                    let visible_worktrees_count =
1950                        self.project.read(cx).visible_worktrees(cx).count();
1951                    if settings.hide_root && visible_worktrees_count == 1 {
1952                        return;
1953                    }
1954                }
1955
1956                self.state.edit_state = Some(EditState {
1957                    worktree_id,
1958                    entry_id: sub_entry_id,
1959                    leaf_entry_id: Some(entry_id),
1960                    is_dir: entry.is_dir(),
1961                    processing_filename: None,
1962                    previously_focused: None,
1963                    depth: 0,
1964                    validation_state: ValidationState::None,
1965                });
1966                let file_name = entry.path.file_name().unwrap_or_default().to_string();
1967                let selection = selection.unwrap_or_else(|| {
1968                    let file_stem = entry.path.file_stem().map(|s| s.to_string());
1969                    let selection_end =
1970                        file_stem.map_or(file_name.len(), |file_stem| file_stem.len());
1971                    0..selection_end
1972                });
1973                self.filename_editor.update(cx, |editor, cx| {
1974                    editor.set_text(file_name, window, cx);
1975                    editor.change_selections(Default::default(), window, cx, |s| {
1976                        s.select_ranges([selection])
1977                    });
1978                    window.focus(&editor.focus_handle(cx));
1979                });
1980                self.update_visible_entries(None, false, true, window, cx);
1981                cx.notify();
1982            }
1983        }
1984    }
1985
1986    fn rename(&mut self, _: &Rename, window: &mut Window, cx: &mut Context<Self>) {
1987        self.rename_impl(None, window, cx);
1988    }
1989
1990    fn trash(&mut self, action: &Trash, window: &mut Window, cx: &mut Context<Self>) {
1991        self.remove(true, action.skip_prompt, window, cx);
1992    }
1993
1994    fn delete(&mut self, action: &Delete, window: &mut Window, cx: &mut Context<Self>) {
1995        self.remove(false, action.skip_prompt, window, cx);
1996    }
1997
1998    fn remove(
1999        &mut self,
2000        trash: bool,
2001        skip_prompt: bool,
2002        window: &mut Window,
2003        cx: &mut Context<ProjectPanel>,
2004    ) {
2005        maybe!({
2006            let items_to_delete = self.disjoint_entries(cx);
2007            if items_to_delete.is_empty() {
2008                return None;
2009            }
2010            let project = self.project.read(cx);
2011
2012            let mut dirty_buffers = 0;
2013            let file_paths = items_to_delete
2014                .iter()
2015                .filter_map(|selection| {
2016                    let project_path = project.path_for_entry(selection.entry_id, cx)?;
2017                    dirty_buffers +=
2018                        project.dirty_buffers(cx).any(|path| path == project_path) as usize;
2019                    Some((
2020                        selection.entry_id,
2021                        project_path.path.file_name()?.to_string(),
2022                    ))
2023                })
2024                .collect::<Vec<_>>();
2025            if file_paths.is_empty() {
2026                return None;
2027            }
2028            let answer = if !skip_prompt {
2029                let operation = if trash { "Trash" } else { "Delete" };
2030                let prompt = match file_paths.first() {
2031                    Some((_, path)) if file_paths.len() == 1 => {
2032                        let unsaved_warning = if dirty_buffers > 0 {
2033                            "\n\nIt has unsaved changes, which will be lost."
2034                        } else {
2035                            ""
2036                        };
2037
2038                        format!("{operation} {path}?{unsaved_warning}")
2039                    }
2040                    _ => {
2041                        const CUTOFF_POINT: usize = 10;
2042                        let names = if file_paths.len() > CUTOFF_POINT {
2043                            let truncated_path_counts = file_paths.len() - CUTOFF_POINT;
2044                            let mut paths = file_paths
2045                                .iter()
2046                                .map(|(_, path)| path.clone())
2047                                .take(CUTOFF_POINT)
2048                                .collect::<Vec<_>>();
2049                            paths.truncate(CUTOFF_POINT);
2050                            if truncated_path_counts == 1 {
2051                                paths.push(".. 1 file not shown".into());
2052                            } else {
2053                                paths.push(format!(".. {} files not shown", truncated_path_counts));
2054                            }
2055                            paths
2056                        } else {
2057                            file_paths.iter().map(|(_, path)| path.clone()).collect()
2058                        };
2059                        let unsaved_warning = if dirty_buffers == 0 {
2060                            String::new()
2061                        } else if dirty_buffers == 1 {
2062                            "\n\n1 of these has unsaved changes, which will be lost.".to_string()
2063                        } else {
2064                            format!(
2065                                "\n\n{dirty_buffers} of these have unsaved changes, which will be lost."
2066                            )
2067                        };
2068
2069                        format!(
2070                            "Do you want to {} the following {} files?\n{}{unsaved_warning}",
2071                            operation.to_lowercase(),
2072                            file_paths.len(),
2073                            names.join("\n")
2074                        )
2075                    }
2076                };
2077                Some(window.prompt(PromptLevel::Info, &prompt, None, &[operation, "Cancel"], cx))
2078            } else {
2079                None
2080            };
2081            let next_selection = self.find_next_selection_after_deletion(items_to_delete, cx);
2082            cx.spawn_in(window, async move |panel, cx| {
2083                if let Some(answer) = answer
2084                    && answer.await != Ok(0)
2085                {
2086                    return anyhow::Ok(());
2087                }
2088                for (entry_id, _) in file_paths {
2089                    panel
2090                        .update(cx, |panel, cx| {
2091                            panel
2092                                .project
2093                                .update(cx, |project, cx| project.delete_entry(entry_id, trash, cx))
2094                                .context("no such entry")
2095                        })??
2096                        .await?;
2097                }
2098                panel.update_in(cx, |panel, window, cx| {
2099                    if let Some(next_selection) = next_selection {
2100                        panel.update_visible_entries(
2101                            Some((next_selection.worktree_id, next_selection.entry_id)),
2102                            false,
2103                            true,
2104                            window,
2105                            cx,
2106                        );
2107                    } else {
2108                        panel.select_last(&SelectLast {}, window, cx);
2109                    }
2110                })?;
2111                Ok(())
2112            })
2113            .detach_and_log_err(cx);
2114            Some(())
2115        });
2116    }
2117
2118    fn find_next_selection_after_deletion(
2119        &self,
2120        sanitized_entries: BTreeSet<SelectedEntry>,
2121        cx: &mut Context<Self>,
2122    ) -> Option<SelectedEntry> {
2123        if sanitized_entries.is_empty() {
2124            return None;
2125        }
2126        let project = self.project.read(cx);
2127        let (worktree_id, worktree) = sanitized_entries
2128            .iter()
2129            .map(|entry| entry.worktree_id)
2130            .filter_map(|id| project.worktree_for_id(id, cx).map(|w| (id, w.read(cx))))
2131            .max_by(|(_, a), (_, b)| a.root_name().cmp(b.root_name()))?;
2132        let git_store = project.git_store().read(cx);
2133
2134        let marked_entries_in_worktree = sanitized_entries
2135            .iter()
2136            .filter(|e| e.worktree_id == worktree_id)
2137            .collect::<HashSet<_>>();
2138        let latest_entry = marked_entries_in_worktree
2139            .iter()
2140            .max_by(|a, b| {
2141                match (
2142                    worktree.entry_for_id(a.entry_id),
2143                    worktree.entry_for_id(b.entry_id),
2144                ) {
2145                    (Some(a), Some(b)) => compare_paths(
2146                        (a.path.as_std_path(), a.is_file()),
2147                        (b.path.as_std_path(), b.is_file()),
2148                    ),
2149                    _ => cmp::Ordering::Equal,
2150                }
2151            })
2152            .and_then(|e| worktree.entry_for_id(e.entry_id))?;
2153
2154        let parent_path = latest_entry.path.parent()?;
2155        let parent_entry = worktree.entry_for_path(parent_path)?;
2156
2157        // Remove all siblings that are being deleted except the last marked entry
2158        let repo_snapshots = git_store.repo_snapshots(cx);
2159        let worktree_snapshot = worktree.snapshot();
2160        let hide_gitignore = ProjectPanelSettings::get_global(cx).hide_gitignore;
2161        let mut siblings: Vec<_> =
2162            ChildEntriesGitIter::new(&repo_snapshots, &worktree_snapshot, parent_path)
2163                .filter(|sibling| {
2164                    (sibling.id == latest_entry.id)
2165                        || (!marked_entries_in_worktree.contains(&&SelectedEntry {
2166                            worktree_id,
2167                            entry_id: sibling.id,
2168                        }) && (!hide_gitignore || !sibling.is_ignored))
2169                })
2170                .map(|entry| entry.to_owned())
2171                .collect();
2172
2173        sort_worktree_entries(&mut siblings);
2174        let sibling_entry_index = siblings
2175            .iter()
2176            .position(|sibling| sibling.id == latest_entry.id)?;
2177
2178        if let Some(next_sibling) = sibling_entry_index
2179            .checked_add(1)
2180            .and_then(|i| siblings.get(i))
2181        {
2182            return Some(SelectedEntry {
2183                worktree_id,
2184                entry_id: next_sibling.id,
2185            });
2186        }
2187        if let Some(prev_sibling) = sibling_entry_index
2188            .checked_sub(1)
2189            .and_then(|i| siblings.get(i))
2190        {
2191            return Some(SelectedEntry {
2192                worktree_id,
2193                entry_id: prev_sibling.id,
2194            });
2195        }
2196        // No neighbour sibling found, fall back to parent
2197        Some(SelectedEntry {
2198            worktree_id,
2199            entry_id: parent_entry.id,
2200        })
2201    }
2202
2203    fn unfold_directory(
2204        &mut self,
2205        _: &UnfoldDirectory,
2206        window: &mut Window,
2207        cx: &mut Context<Self>,
2208    ) {
2209        if let Some((worktree, entry)) = self.selected_entry(cx) {
2210            self.state.unfolded_dir_ids.insert(entry.id);
2211
2212            let snapshot = worktree.snapshot();
2213            let mut parent_path = entry.path.parent();
2214            while let Some(path) = parent_path {
2215                if let Some(parent_entry) = worktree.entry_for_path(path) {
2216                    let mut children_iter = snapshot.child_entries(path);
2217
2218                    if children_iter.by_ref().take(2).count() > 1 {
2219                        break;
2220                    }
2221
2222                    self.state.unfolded_dir_ids.insert(parent_entry.id);
2223                    parent_path = path.parent();
2224                } else {
2225                    break;
2226                }
2227            }
2228
2229            self.update_visible_entries(None, false, true, window, cx);
2230            cx.notify();
2231        }
2232    }
2233
2234    fn fold_directory(&mut self, _: &FoldDirectory, window: &mut Window, cx: &mut Context<Self>) {
2235        if let Some((worktree, entry)) = self.selected_entry(cx) {
2236            self.state.unfolded_dir_ids.remove(&entry.id);
2237
2238            let snapshot = worktree.snapshot();
2239            let mut path = &*entry.path;
2240            loop {
2241                let mut child_entries_iter = snapshot.child_entries(path);
2242                if let Some(child) = child_entries_iter.next() {
2243                    if child_entries_iter.next().is_none() && child.is_dir() {
2244                        self.state.unfolded_dir_ids.remove(&child.id);
2245                        path = &*child.path;
2246                    } else {
2247                        break;
2248                    }
2249                } else {
2250                    break;
2251                }
2252            }
2253
2254            self.update_visible_entries(None, false, true, window, cx);
2255            cx.notify();
2256        }
2257    }
2258
2259    fn scroll_up(&mut self, _: &ScrollUp, window: &mut Window, cx: &mut Context<Self>) {
2260        for _ in 0..self.rendered_entries_len / 2 {
2261            window.dispatch_action(SelectPrevious.boxed_clone(), cx);
2262        }
2263    }
2264
2265    fn scroll_down(&mut self, _: &ScrollDown, window: &mut Window, cx: &mut Context<Self>) {
2266        for _ in 0..self.rendered_entries_len / 2 {
2267            window.dispatch_action(SelectNext.boxed_clone(), cx);
2268        }
2269    }
2270
2271    fn scroll_cursor_center(
2272        &mut self,
2273        _: &ScrollCursorCenter,
2274        _: &mut Window,
2275        cx: &mut Context<Self>,
2276    ) {
2277        if let Some((_, _, index)) = self
2278            .state
2279            .selection
2280            .and_then(|s| self.index_for_selection(s))
2281        {
2282            self.scroll_handle
2283                .scroll_to_item_strict(index, ScrollStrategy::Center);
2284            cx.notify();
2285        }
2286    }
2287
2288    fn scroll_cursor_top(&mut self, _: &ScrollCursorTop, _: &mut Window, cx: &mut Context<Self>) {
2289        if let Some((_, _, index)) = self
2290            .state
2291            .selection
2292            .and_then(|s| self.index_for_selection(s))
2293        {
2294            self.scroll_handle
2295                .scroll_to_item_strict(index, ScrollStrategy::Top);
2296            cx.notify();
2297        }
2298    }
2299
2300    fn scroll_cursor_bottom(
2301        &mut self,
2302        _: &ScrollCursorBottom,
2303        _: &mut Window,
2304        cx: &mut Context<Self>,
2305    ) {
2306        if let Some((_, _, index)) = self
2307            .state
2308            .selection
2309            .and_then(|s| self.index_for_selection(s))
2310        {
2311            self.scroll_handle
2312                .scroll_to_item_strict(index, ScrollStrategy::Bottom);
2313            cx.notify();
2314        }
2315    }
2316
2317    fn select_next(&mut self, _: &SelectNext, window: &mut Window, cx: &mut Context<Self>) {
2318        if let Some(edit_state) = &self.state.edit_state
2319            && edit_state.processing_filename.is_none()
2320        {
2321            self.filename_editor.update(cx, |editor, cx| {
2322                editor.move_to_end_of_line(
2323                    &editor::actions::MoveToEndOfLine {
2324                        stop_at_soft_wraps: false,
2325                    },
2326                    window,
2327                    cx,
2328                );
2329            });
2330            return;
2331        }
2332        if let Some(selection) = self.state.selection {
2333            let (mut worktree_ix, mut entry_ix, _) =
2334                self.index_for_selection(selection).unwrap_or_default();
2335            if let Some(worktree_entries) = self
2336                .state
2337                .visible_entries
2338                .get(worktree_ix)
2339                .map(|v| &v.entries)
2340            {
2341                if entry_ix + 1 < worktree_entries.len() {
2342                    entry_ix += 1;
2343                } else {
2344                    worktree_ix += 1;
2345                    entry_ix = 0;
2346                }
2347            }
2348
2349            if let Some(VisibleEntriesForWorktree {
2350                worktree_id,
2351                entries,
2352                ..
2353            }) = self.state.visible_entries.get(worktree_ix)
2354                && let Some(entry) = entries.get(entry_ix)
2355            {
2356                let selection = SelectedEntry {
2357                    worktree_id: *worktree_id,
2358                    entry_id: entry.id,
2359                };
2360                self.state.selection = Some(selection);
2361                if window.modifiers().shift {
2362                    self.marked_entries.push(selection);
2363                }
2364
2365                self.autoscroll(cx);
2366                cx.notify();
2367            }
2368        } else {
2369            self.select_first(&SelectFirst {}, window, cx);
2370        }
2371    }
2372
2373    fn select_prev_diagnostic(
2374        &mut self,
2375        action: &SelectPrevDiagnostic,
2376        window: &mut Window,
2377        cx: &mut Context<Self>,
2378    ) {
2379        let selection = self.find_entry(
2380            self.state.selection.as_ref(),
2381            true,
2382            |entry, worktree_id| {
2383                self.state.selection.is_none_or(|selection| {
2384                    if selection.worktree_id == worktree_id {
2385                        selection.entry_id != entry.id
2386                    } else {
2387                        true
2388                    }
2389                }) && entry.is_file()
2390                    && self
2391                        .diagnostics
2392                        .get(&(worktree_id, entry.path.clone()))
2393                        .is_some_and(|severity| action.severity.matches(*severity))
2394            },
2395            cx,
2396        );
2397
2398        if let Some(selection) = selection {
2399            self.state.selection = Some(selection);
2400            self.expand_entry(selection.worktree_id, selection.entry_id, cx);
2401            self.update_visible_entries(
2402                Some((selection.worktree_id, selection.entry_id)),
2403                false,
2404                true,
2405                window,
2406                cx,
2407            );
2408            cx.notify();
2409        }
2410    }
2411
2412    fn select_next_diagnostic(
2413        &mut self,
2414        action: &SelectNextDiagnostic,
2415        window: &mut Window,
2416        cx: &mut Context<Self>,
2417    ) {
2418        let selection = self.find_entry(
2419            self.state.selection.as_ref(),
2420            false,
2421            |entry, worktree_id| {
2422                self.state.selection.is_none_or(|selection| {
2423                    if selection.worktree_id == worktree_id {
2424                        selection.entry_id != entry.id
2425                    } else {
2426                        true
2427                    }
2428                }) && entry.is_file()
2429                    && self
2430                        .diagnostics
2431                        .get(&(worktree_id, entry.path.clone()))
2432                        .is_some_and(|severity| action.severity.matches(*severity))
2433            },
2434            cx,
2435        );
2436
2437        if let Some(selection) = selection {
2438            self.state.selection = Some(selection);
2439            self.expand_entry(selection.worktree_id, selection.entry_id, cx);
2440            self.update_visible_entries(
2441                Some((selection.worktree_id, selection.entry_id)),
2442                false,
2443                true,
2444                window,
2445                cx,
2446            );
2447            cx.notify();
2448        }
2449    }
2450
2451    fn select_prev_git_entry(
2452        &mut self,
2453        _: &SelectPrevGitEntry,
2454        window: &mut Window,
2455        cx: &mut Context<Self>,
2456    ) {
2457        let selection = self.find_entry(
2458            self.state.selection.as_ref(),
2459            true,
2460            |entry, worktree_id| {
2461                (self.state.selection.is_none()
2462                    || self.state.selection.is_some_and(|selection| {
2463                        if selection.worktree_id == worktree_id {
2464                            selection.entry_id != entry.id
2465                        } else {
2466                            true
2467                        }
2468                    }))
2469                    && entry.is_file()
2470                    && entry.git_summary.index.modified + entry.git_summary.worktree.modified > 0
2471            },
2472            cx,
2473        );
2474
2475        if let Some(selection) = selection {
2476            self.state.selection = Some(selection);
2477            self.expand_entry(selection.worktree_id, selection.entry_id, cx);
2478            self.update_visible_entries(
2479                Some((selection.worktree_id, selection.entry_id)),
2480                false,
2481                true,
2482                window,
2483                cx,
2484            );
2485            cx.notify();
2486        }
2487    }
2488
2489    fn select_prev_directory(
2490        &mut self,
2491        _: &SelectPrevDirectory,
2492        _: &mut Window,
2493        cx: &mut Context<Self>,
2494    ) {
2495        let selection = self.find_visible_entry(
2496            self.state.selection.as_ref(),
2497            true,
2498            |entry, worktree_id| {
2499                self.state.selection.is_none_or(|selection| {
2500                    if selection.worktree_id == worktree_id {
2501                        selection.entry_id != entry.id
2502                    } else {
2503                        true
2504                    }
2505                }) && entry.is_dir()
2506            },
2507            cx,
2508        );
2509
2510        if let Some(selection) = selection {
2511            self.state.selection = Some(selection);
2512            self.autoscroll(cx);
2513            cx.notify();
2514        }
2515    }
2516
2517    fn select_next_directory(
2518        &mut self,
2519        _: &SelectNextDirectory,
2520        _: &mut Window,
2521        cx: &mut Context<Self>,
2522    ) {
2523        let selection = self.find_visible_entry(
2524            self.state.selection.as_ref(),
2525            false,
2526            |entry, worktree_id| {
2527                self.state.selection.is_none_or(|selection| {
2528                    if selection.worktree_id == worktree_id {
2529                        selection.entry_id != entry.id
2530                    } else {
2531                        true
2532                    }
2533                }) && entry.is_dir()
2534            },
2535            cx,
2536        );
2537
2538        if let Some(selection) = selection {
2539            self.state.selection = Some(selection);
2540            self.autoscroll(cx);
2541            cx.notify();
2542        }
2543    }
2544
2545    fn select_next_git_entry(
2546        &mut self,
2547        _: &SelectNextGitEntry,
2548        window: &mut Window,
2549        cx: &mut Context<Self>,
2550    ) {
2551        let selection = self.find_entry(
2552            self.state.selection.as_ref(),
2553            false,
2554            |entry, worktree_id| {
2555                self.state.selection.is_none_or(|selection| {
2556                    if selection.worktree_id == worktree_id {
2557                        selection.entry_id != entry.id
2558                    } else {
2559                        true
2560                    }
2561                }) && entry.is_file()
2562                    && entry.git_summary.index.modified + entry.git_summary.worktree.modified > 0
2563            },
2564            cx,
2565        );
2566
2567        if let Some(selection) = selection {
2568            self.state.selection = Some(selection);
2569            self.expand_entry(selection.worktree_id, selection.entry_id, cx);
2570            self.update_visible_entries(
2571                Some((selection.worktree_id, selection.entry_id)),
2572                false,
2573                true,
2574                window,
2575                cx,
2576            );
2577            cx.notify();
2578        }
2579    }
2580
2581    fn select_parent(&mut self, _: &SelectParent, window: &mut Window, cx: &mut Context<Self>) {
2582        if let Some((worktree, entry)) = self.selected_sub_entry(cx) {
2583            if let Some(parent) = entry.path.parent() {
2584                let worktree = worktree.read(cx);
2585                if let Some(parent_entry) = worktree.entry_for_path(parent) {
2586                    self.state.selection = Some(SelectedEntry {
2587                        worktree_id: worktree.id(),
2588                        entry_id: parent_entry.id,
2589                    });
2590                    self.autoscroll(cx);
2591                    cx.notify();
2592                }
2593            }
2594        } else {
2595            self.select_first(&SelectFirst {}, window, cx);
2596        }
2597    }
2598
2599    fn select_first(&mut self, _: &SelectFirst, window: &mut Window, cx: &mut Context<Self>) {
2600        if let Some(VisibleEntriesForWorktree {
2601            worktree_id,
2602            entries,
2603            ..
2604        }) = self.state.visible_entries.first()
2605            && let Some(entry) = entries.first()
2606        {
2607            let selection = SelectedEntry {
2608                worktree_id: *worktree_id,
2609                entry_id: entry.id,
2610            };
2611            self.state.selection = Some(selection);
2612            if window.modifiers().shift {
2613                self.marked_entries.push(selection);
2614            }
2615            self.autoscroll(cx);
2616            cx.notify();
2617        }
2618    }
2619
2620    fn select_last(&mut self, _: &SelectLast, _: &mut Window, cx: &mut Context<Self>) {
2621        if let Some(VisibleEntriesForWorktree {
2622            worktree_id,
2623            entries,
2624            ..
2625        }) = self.state.visible_entries.last()
2626        {
2627            let worktree = self.project.read(cx).worktree_for_id(*worktree_id, cx);
2628            if let (Some(worktree), Some(entry)) = (worktree, entries.last()) {
2629                let worktree = worktree.read(cx);
2630                if let Some(entry) = worktree.entry_for_id(entry.id) {
2631                    let selection = SelectedEntry {
2632                        worktree_id: *worktree_id,
2633                        entry_id: entry.id,
2634                    };
2635                    self.state.selection = Some(selection);
2636                    self.autoscroll(cx);
2637                    cx.notify();
2638                }
2639            }
2640        }
2641    }
2642
2643    fn autoscroll(&mut self, cx: &mut Context<Self>) {
2644        if let Some((_, _, index)) = self
2645            .state
2646            .selection
2647            .and_then(|s| self.index_for_selection(s))
2648        {
2649            self.scroll_handle.scroll_to_item_with_offset(
2650                index,
2651                ScrollStrategy::Center,
2652                self.sticky_items_count,
2653            );
2654            cx.notify();
2655        }
2656    }
2657
2658    fn cut(&mut self, _: &Cut, _: &mut Window, cx: &mut Context<Self>) {
2659        let entries = self.disjoint_entries(cx);
2660        if !entries.is_empty() {
2661            self.clipboard = Some(ClipboardEntry::Cut(entries));
2662            cx.notify();
2663        }
2664    }
2665
2666    fn copy(&mut self, _: &Copy, _: &mut Window, cx: &mut Context<Self>) {
2667        let entries = self.disjoint_entries(cx);
2668        if !entries.is_empty() {
2669            self.clipboard = Some(ClipboardEntry::Copied(entries));
2670            cx.notify();
2671        }
2672    }
2673
2674    fn create_paste_path(
2675        &self,
2676        source: &SelectedEntry,
2677        (worktree, target_entry): (Entity<Worktree>, &Entry),
2678        cx: &App,
2679    ) -> Option<(Arc<RelPath>, Option<Range<usize>>)> {
2680        let mut new_path = target_entry.path.to_rel_path_buf();
2681        // If we're pasting into a file, or a directory into itself, go up one level.
2682        if target_entry.is_file() || (target_entry.is_dir() && target_entry.id == source.entry_id) {
2683            new_path.pop();
2684        }
2685        let clipboard_entry_file_name = self
2686            .project
2687            .read(cx)
2688            .path_for_entry(source.entry_id, cx)?
2689            .path
2690            .file_name()?
2691            .to_string();
2692        new_path.push(RelPath::unix(&clipboard_entry_file_name).unwrap());
2693        let extension = new_path.extension().map(|s| s.to_string());
2694        let file_name_without_extension = new_path.file_stem()?.to_string();
2695        let file_name_len = file_name_without_extension.len();
2696        let mut disambiguation_range = None;
2697        let mut ix = 0;
2698        {
2699            let worktree = worktree.read(cx);
2700            while worktree.entry_for_path(&new_path).is_some() {
2701                new_path.pop();
2702
2703                let mut new_file_name = file_name_without_extension.to_string();
2704
2705                let disambiguation = " copy";
2706                let mut disambiguation_len = disambiguation.len();
2707
2708                new_file_name.push_str(disambiguation);
2709
2710                if ix > 0 {
2711                    let extra_disambiguation = format!(" {}", ix);
2712                    disambiguation_len += extra_disambiguation.len();
2713                    new_file_name.push_str(&extra_disambiguation);
2714                }
2715                if let Some(extension) = extension.as_ref() {
2716                    new_file_name.push_str(".");
2717                    new_file_name.push_str(extension);
2718                }
2719
2720                new_path.push(RelPath::unix(&new_file_name).unwrap());
2721
2722                disambiguation_range = Some(file_name_len..(file_name_len + disambiguation_len));
2723                ix += 1;
2724            }
2725        }
2726        Some((new_path.as_rel_path().into(), disambiguation_range))
2727    }
2728
2729    fn paste(&mut self, _: &Paste, window: &mut Window, cx: &mut Context<Self>) {
2730        maybe!({
2731            let (worktree, entry) = self.selected_entry_handle(cx)?;
2732            let entry = entry.clone();
2733            let worktree_id = worktree.read(cx).id();
2734            let clipboard_entries = self
2735                .clipboard
2736                .as_ref()
2737                .filter(|clipboard| !clipboard.items().is_empty())?;
2738
2739            enum PasteTask {
2740                Rename(Task<Result<CreatedEntry>>),
2741                Copy(Task<Result<Option<Entry>>>),
2742            }
2743
2744            let mut paste_tasks = Vec::new();
2745            let mut disambiguation_range = None;
2746            let clip_is_cut = clipboard_entries.is_cut();
2747            for clipboard_entry in clipboard_entries.items() {
2748                let (new_path, new_disambiguation_range) =
2749                    self.create_paste_path(clipboard_entry, self.selected_sub_entry(cx)?, cx)?;
2750                let clip_entry_id = clipboard_entry.entry_id;
2751                let task = if clipboard_entries.is_cut() {
2752                    let task = self.project.update(cx, |project, cx| {
2753                        project.rename_entry(clip_entry_id, (worktree_id, new_path).into(), cx)
2754                    });
2755                    PasteTask::Rename(task)
2756                } else {
2757                    let task = self.project.update(cx, |project, cx| {
2758                        project.copy_entry(clip_entry_id, (worktree_id, new_path).into(), cx)
2759                    });
2760                    PasteTask::Copy(task)
2761                };
2762                paste_tasks.push(task);
2763                disambiguation_range = new_disambiguation_range.or(disambiguation_range);
2764            }
2765
2766            let item_count = paste_tasks.len();
2767
2768            cx.spawn_in(window, async move |project_panel, cx| {
2769                let mut last_succeed = None;
2770                for task in paste_tasks {
2771                    match task {
2772                        PasteTask::Rename(task) => {
2773                            if let Some(CreatedEntry::Included(entry)) =
2774                                task.await.notify_async_err(cx)
2775                            {
2776                                last_succeed = Some(entry);
2777                            }
2778                        }
2779                        PasteTask::Copy(task) => {
2780                            if let Some(Some(entry)) = task.await.notify_async_err(cx) {
2781                                last_succeed = Some(entry);
2782                            }
2783                        }
2784                    }
2785                }
2786                // update selection
2787                if let Some(entry) = last_succeed {
2788                    project_panel
2789                        .update_in(cx, |project_panel, window, cx| {
2790                            project_panel.state.selection = Some(SelectedEntry {
2791                                worktree_id,
2792                                entry_id: entry.id,
2793                            });
2794
2795                            if item_count == 1 {
2796                                // open entry if not dir, setting is enabled, and only focus if rename is not pending
2797                                if !entry.is_dir()
2798                                    && ProjectPanelSettings::get_global(cx).open_file_on_paste
2799                                {
2800                                    project_panel.open_entry(
2801                                        entry.id,
2802                                        disambiguation_range.is_none(),
2803                                        false,
2804                                        cx,
2805                                    );
2806                                }
2807
2808                                // if only one entry was pasted and it was disambiguated, open the rename editor
2809                                if disambiguation_range.is_some() {
2810                                    cx.defer_in(window, |this, window, cx| {
2811                                        this.rename_impl(disambiguation_range, window, cx);
2812                                    });
2813                                }
2814                            }
2815                        })
2816                        .ok();
2817                }
2818
2819                anyhow::Ok(())
2820            })
2821            .detach_and_log_err(cx);
2822
2823            if clip_is_cut {
2824                // Convert the clipboard cut entry to a copy entry after the first paste.
2825                self.clipboard = self.clipboard.take().map(ClipboardEntry::into_copy_entry);
2826            }
2827
2828            self.expand_entry(worktree_id, entry.id, cx);
2829            Some(())
2830        });
2831    }
2832
2833    fn duplicate(&mut self, _: &Duplicate, window: &mut Window, cx: &mut Context<Self>) {
2834        self.copy(&Copy {}, window, cx);
2835        self.paste(&Paste {}, window, cx);
2836    }
2837
2838    fn copy_path(
2839        &mut self,
2840        _: &zed_actions::workspace::CopyPath,
2841        _: &mut Window,
2842        cx: &mut Context<Self>,
2843    ) {
2844        let abs_file_paths = {
2845            let project = self.project.read(cx);
2846            self.effective_entries()
2847                .into_iter()
2848                .filter_map(|entry| {
2849                    let entry_path = project.path_for_entry(entry.entry_id, cx)?.path;
2850                    Some(
2851                        project
2852                            .worktree_for_id(entry.worktree_id, cx)?
2853                            .read(cx)
2854                            .absolutize(&entry_path)
2855                            .to_string_lossy()
2856                            .to_string(),
2857                    )
2858                })
2859                .collect::<Vec<_>>()
2860        };
2861        if !abs_file_paths.is_empty() {
2862            cx.write_to_clipboard(ClipboardItem::new_string(abs_file_paths.join("\n")));
2863        }
2864    }
2865
2866    fn copy_relative_path(
2867        &mut self,
2868        _: &zed_actions::workspace::CopyRelativePath,
2869        _: &mut Window,
2870        cx: &mut Context<Self>,
2871    ) {
2872        let path_style = self.project.read(cx).path_style(cx);
2873        let file_paths = {
2874            let project = self.project.read(cx);
2875            self.effective_entries()
2876                .into_iter()
2877                .filter_map(|entry| {
2878                    Some(
2879                        project
2880                            .path_for_entry(entry.entry_id, cx)?
2881                            .path
2882                            .display(path_style)
2883                            .into_owned(),
2884                    )
2885                })
2886                .collect::<Vec<_>>()
2887        };
2888        if !file_paths.is_empty() {
2889            cx.write_to_clipboard(ClipboardItem::new_string(file_paths.join("\n")));
2890        }
2891    }
2892
2893    fn reveal_in_finder(
2894        &mut self,
2895        _: &RevealInFileManager,
2896        _: &mut Window,
2897        cx: &mut Context<Self>,
2898    ) {
2899        if let Some((worktree, entry)) = self.selected_sub_entry(cx) {
2900            cx.reveal_path(&worktree.read(cx).absolutize(&entry.path));
2901        }
2902    }
2903
2904    fn remove_from_project(
2905        &mut self,
2906        _: &RemoveFromProject,
2907        _window: &mut Window,
2908        cx: &mut Context<Self>,
2909    ) {
2910        for entry in self.effective_entries().iter() {
2911            let worktree_id = entry.worktree_id;
2912            self.project
2913                .update(cx, |project, cx| project.remove_worktree(worktree_id, cx));
2914        }
2915    }
2916
2917    fn file_abs_paths_to_diff(&self, cx: &Context<Self>) -> Option<(PathBuf, PathBuf)> {
2918        let mut selections_abs_path = self
2919            .marked_entries
2920            .iter()
2921            .filter_map(|entry| {
2922                let project = self.project.read(cx);
2923                let worktree = project.worktree_for_id(entry.worktree_id, cx)?;
2924                let entry = worktree.read(cx).entry_for_id(entry.entry_id)?;
2925                if !entry.is_file() {
2926                    return None;
2927                }
2928                Some(worktree.read(cx).absolutize(&entry.path))
2929            })
2930            .rev();
2931
2932        let last_path = selections_abs_path.next()?;
2933        let previous_to_last = selections_abs_path.next()?;
2934        Some((previous_to_last, last_path))
2935    }
2936
2937    fn compare_marked_files(
2938        &mut self,
2939        _: &CompareMarkedFiles,
2940        window: &mut Window,
2941        cx: &mut Context<Self>,
2942    ) {
2943        let selected_files = self.file_abs_paths_to_diff(cx);
2944        if let Some((file_path1, file_path2)) = selected_files {
2945            self.workspace
2946                .update(cx, |workspace, cx| {
2947                    FileDiffView::open(file_path1, file_path2, workspace, window, cx)
2948                        .detach_and_log_err(cx);
2949                })
2950                .ok();
2951        }
2952    }
2953
2954    fn open_system(&mut self, _: &OpenWithSystem, _: &mut Window, cx: &mut Context<Self>) {
2955        if let Some((worktree, entry)) = self.selected_entry(cx) {
2956            let abs_path = worktree.absolutize(&entry.path);
2957            cx.open_with_system(&abs_path);
2958        }
2959    }
2960
2961    fn open_in_terminal(
2962        &mut self,
2963        _: &OpenInTerminal,
2964        window: &mut Window,
2965        cx: &mut Context<Self>,
2966    ) {
2967        if let Some((worktree, entry)) = self.selected_sub_entry(cx) {
2968            let abs_path = match &entry.canonical_path {
2969                Some(canonical_path) => canonical_path.to_path_buf(),
2970                None => worktree.read(cx).absolutize(&entry.path),
2971            };
2972
2973            let working_directory = if entry.is_dir() {
2974                Some(abs_path)
2975            } else {
2976                abs_path.parent().map(|path| path.to_path_buf())
2977            };
2978            if let Some(working_directory) = working_directory {
2979                window.dispatch_action(
2980                    workspace::OpenTerminal { working_directory }.boxed_clone(),
2981                    cx,
2982                )
2983            }
2984        }
2985    }
2986
2987    pub fn new_search_in_directory(
2988        &mut self,
2989        _: &NewSearchInDirectory,
2990        window: &mut Window,
2991        cx: &mut Context<Self>,
2992    ) {
2993        if let Some((worktree, entry)) = self.selected_sub_entry(cx) {
2994            let dir_path = if entry.is_dir() {
2995                entry.path.clone()
2996            } else {
2997                // entry is a file, use its parent directory
2998                match entry.path.parent() {
2999                    Some(parent) => Arc::from(parent),
3000                    None => {
3001                        // File at root, open search with empty filter
3002                        self.workspace
3003                            .update(cx, |workspace, cx| {
3004                                search::ProjectSearchView::new_search_in_directory(
3005                                    workspace,
3006                                    RelPath::empty(),
3007                                    window,
3008                                    cx,
3009                                );
3010                            })
3011                            .ok();
3012                        return;
3013                    }
3014                }
3015            };
3016
3017            let include_root = self.project.read(cx).visible_worktrees(cx).count() > 1;
3018            let dir_path = if include_root {
3019                worktree.read(cx).root_name().join(&dir_path)
3020            } else {
3021                dir_path
3022            };
3023
3024            self.workspace
3025                .update(cx, |workspace, cx| {
3026                    search::ProjectSearchView::new_search_in_directory(
3027                        workspace, &dir_path, window, cx,
3028                    );
3029                })
3030                .ok();
3031        }
3032    }
3033
3034    fn move_entry(
3035        &mut self,
3036        entry_to_move: ProjectEntryId,
3037        destination: ProjectEntryId,
3038        destination_is_file: bool,
3039        cx: &mut Context<Self>,
3040    ) {
3041        if self
3042            .project
3043            .read(cx)
3044            .entry_is_worktree_root(entry_to_move, cx)
3045        {
3046            self.move_worktree_root(entry_to_move, destination, cx)
3047        } else {
3048            self.move_worktree_entry(entry_to_move, destination, destination_is_file, cx)
3049        }
3050    }
3051
3052    fn move_worktree_root(
3053        &mut self,
3054        entry_to_move: ProjectEntryId,
3055        destination: ProjectEntryId,
3056        cx: &mut Context<Self>,
3057    ) {
3058        self.project.update(cx, |project, cx| {
3059            let Some(worktree_to_move) = project.worktree_for_entry(entry_to_move, cx) else {
3060                return;
3061            };
3062            let Some(destination_worktree) = project.worktree_for_entry(destination, cx) else {
3063                return;
3064            };
3065
3066            let worktree_id = worktree_to_move.read(cx).id();
3067            let destination_id = destination_worktree.read(cx).id();
3068
3069            project
3070                .move_worktree(worktree_id, destination_id, cx)
3071                .log_err();
3072        });
3073    }
3074
3075    fn move_worktree_entry(
3076        &mut self,
3077        entry_to_move: ProjectEntryId,
3078        destination_entry: ProjectEntryId,
3079        destination_is_file: bool,
3080        cx: &mut Context<Self>,
3081    ) {
3082        if entry_to_move == destination_entry {
3083            return;
3084        }
3085
3086        let destination_worktree = self.project.update(cx, |project, cx| {
3087            let source_path = project.path_for_entry(entry_to_move, cx)?;
3088            let destination_path = project.path_for_entry(destination_entry, cx)?;
3089            let destination_worktree_id = destination_path.worktree_id;
3090
3091            let mut destination_path = destination_path.path.as_ref();
3092            if destination_is_file {
3093                destination_path = destination_path.parent()?;
3094            }
3095
3096            let mut new_path = destination_path.to_rel_path_buf();
3097            new_path.push(RelPath::unix(source_path.path.file_name()?).unwrap());
3098            if new_path.as_rel_path() != source_path.path.as_ref() {
3099                let task = project.rename_entry(
3100                    entry_to_move,
3101                    (destination_worktree_id, new_path).into(),
3102                    cx,
3103                );
3104                cx.foreground_executor().spawn(task).detach_and_log_err(cx);
3105            }
3106
3107            project.worktree_id_for_entry(destination_entry, cx)
3108        });
3109
3110        if let Some(destination_worktree) = destination_worktree {
3111            self.expand_entry(destination_worktree, destination_entry, cx);
3112        }
3113    }
3114
3115    fn index_for_selection(&self, selection: SelectedEntry) -> Option<(usize, usize, usize)> {
3116        self.index_for_entry(selection.entry_id, selection.worktree_id)
3117    }
3118
3119    fn disjoint_entries(&self, cx: &App) -> BTreeSet<SelectedEntry> {
3120        let marked_entries = self.effective_entries();
3121        let mut sanitized_entries = BTreeSet::new();
3122        if marked_entries.is_empty() {
3123            return sanitized_entries;
3124        }
3125
3126        let project = self.project.read(cx);
3127        let marked_entries_by_worktree: HashMap<WorktreeId, Vec<SelectedEntry>> = marked_entries
3128            .into_iter()
3129            .filter(|entry| !project.entry_is_worktree_root(entry.entry_id, cx))
3130            .fold(HashMap::default(), |mut map, entry| {
3131                map.entry(entry.worktree_id).or_default().push(entry);
3132                map
3133            });
3134
3135        for (worktree_id, marked_entries) in marked_entries_by_worktree {
3136            if let Some(worktree) = project.worktree_for_id(worktree_id, cx) {
3137                let worktree = worktree.read(cx);
3138                let marked_dir_paths = marked_entries
3139                    .iter()
3140                    .filter_map(|entry| {
3141                        worktree.entry_for_id(entry.entry_id).and_then(|entry| {
3142                            if entry.is_dir() {
3143                                Some(entry.path.as_ref())
3144                            } else {
3145                                None
3146                            }
3147                        })
3148                    })
3149                    .collect::<BTreeSet<_>>();
3150
3151                sanitized_entries.extend(marked_entries.into_iter().filter(|entry| {
3152                    let Some(entry_info) = worktree.entry_for_id(entry.entry_id) else {
3153                        return false;
3154                    };
3155                    let entry_path = entry_info.path.as_ref();
3156                    let inside_marked_dir = marked_dir_paths.iter().any(|&marked_dir_path| {
3157                        entry_path != marked_dir_path && entry_path.starts_with(marked_dir_path)
3158                    });
3159                    !inside_marked_dir
3160                }));
3161            }
3162        }
3163
3164        sanitized_entries
3165    }
3166
3167    fn effective_entries(&self) -> BTreeSet<SelectedEntry> {
3168        if let Some(selection) = self.state.selection {
3169            let selection = SelectedEntry {
3170                entry_id: self.resolve_entry(selection.entry_id),
3171                worktree_id: selection.worktree_id,
3172            };
3173
3174            // Default to using just the selected item when nothing is marked.
3175            if self.marked_entries.is_empty() {
3176                return BTreeSet::from([selection]);
3177            }
3178
3179            // Allow operating on the selected item even when something else is marked,
3180            // making it easier to perform one-off actions without clearing a mark.
3181            if self.marked_entries.len() == 1 && !self.marked_entries.contains(&selection) {
3182                return BTreeSet::from([selection]);
3183            }
3184        }
3185
3186        // Return only marked entries since we've already handled special cases where
3187        // only selection should take precedence. At this point, marked entries may or
3188        // may not include the current selection, which is intentional.
3189        self.marked_entries
3190            .iter()
3191            .map(|entry| SelectedEntry {
3192                entry_id: self.resolve_entry(entry.entry_id),
3193                worktree_id: entry.worktree_id,
3194            })
3195            .collect::<BTreeSet<_>>()
3196    }
3197
3198    /// Finds the currently selected subentry for a given leaf entry id. If a given entry
3199    /// has no ancestors, the project entry ID that's passed in is returned as-is.
3200    fn resolve_entry(&self, id: ProjectEntryId) -> ProjectEntryId {
3201        self.state
3202            .ancestors
3203            .get(&id)
3204            .and_then(|ancestors| ancestors.active_ancestor())
3205            .unwrap_or(id)
3206    }
3207
3208    pub fn selected_entry<'a>(&self, cx: &'a App) -> Option<(&'a Worktree, &'a project::Entry)> {
3209        let (worktree, entry) = self.selected_entry_handle(cx)?;
3210        Some((worktree.read(cx), entry))
3211    }
3212
3213    /// Compared to selected_entry, this function resolves to the currently
3214    /// selected subentry if dir auto-folding is enabled.
3215    fn selected_sub_entry<'a>(
3216        &self,
3217        cx: &'a App,
3218    ) -> Option<(Entity<Worktree>, &'a project::Entry)> {
3219        let (worktree, mut entry) = self.selected_entry_handle(cx)?;
3220
3221        let resolved_id = self.resolve_entry(entry.id);
3222        if resolved_id != entry.id {
3223            let worktree = worktree.read(cx);
3224            entry = worktree.entry_for_id(resolved_id)?;
3225        }
3226        Some((worktree, entry))
3227    }
3228    fn selected_entry_handle<'a>(
3229        &self,
3230        cx: &'a App,
3231    ) -> Option<(Entity<Worktree>, &'a project::Entry)> {
3232        let selection = self.state.selection?;
3233        let project = self.project.read(cx);
3234        let worktree = project.worktree_for_id(selection.worktree_id, cx)?;
3235        let entry = worktree.read(cx).entry_for_id(selection.entry_id)?;
3236        Some((worktree, entry))
3237    }
3238
3239    fn expand_to_selection(&mut self, cx: &mut Context<Self>) -> Option<()> {
3240        let (worktree, entry) = self.selected_entry(cx)?;
3241        let expanded_dir_ids = self
3242            .state
3243            .expanded_dir_ids
3244            .entry(worktree.id())
3245            .or_default();
3246
3247        for path in entry.path.ancestors() {
3248            let Some(entry) = worktree.entry_for_path(path) else {
3249                continue;
3250            };
3251            if entry.is_dir()
3252                && let Err(idx) = expanded_dir_ids.binary_search(&entry.id)
3253            {
3254                expanded_dir_ids.insert(idx, entry.id);
3255            }
3256        }
3257
3258        Some(())
3259    }
3260
3261    fn create_new_git_entry(
3262        parent_entry: &Entry,
3263        git_summary: GitSummary,
3264        new_entry_kind: EntryKind,
3265    ) -> GitEntry {
3266        GitEntry {
3267            entry: Entry {
3268                id: NEW_ENTRY_ID,
3269                kind: new_entry_kind,
3270                path: parent_entry.path.join(RelPath::unix("\0").unwrap()),
3271                inode: 0,
3272                mtime: parent_entry.mtime,
3273                size: parent_entry.size,
3274                is_ignored: parent_entry.is_ignored,
3275                is_hidden: parent_entry.is_hidden,
3276                is_external: false,
3277                is_private: false,
3278                is_always_included: parent_entry.is_always_included,
3279                canonical_path: parent_entry.canonical_path.clone(),
3280                char_bag: parent_entry.char_bag,
3281                is_fifo: parent_entry.is_fifo,
3282            },
3283            git_summary,
3284        }
3285    }
3286
3287    fn update_visible_entries(
3288        &mut self,
3289        new_selected_entry: Option<(WorktreeId, ProjectEntryId)>,
3290        focus_filename_editor: bool,
3291        autoscroll: bool,
3292        window: &mut Window,
3293        cx: &mut Context<Self>,
3294    ) {
3295        let now = Instant::now();
3296        let settings = ProjectPanelSettings::get_global(cx);
3297        let auto_collapse_dirs = settings.auto_fold_dirs;
3298        let hide_gitignore = settings.hide_gitignore;
3299        let project = self.project.read(cx);
3300        let repo_snapshots = project.git_store().read(cx).repo_snapshots(cx);
3301
3302        let old_ancestors = self.state.ancestors.clone();
3303        let mut new_state = State::derive(&self.state);
3304        new_state.last_worktree_root_id = project
3305            .visible_worktrees(cx)
3306            .next_back()
3307            .and_then(|worktree| worktree.read(cx).root_entry())
3308            .map(|entry| entry.id);
3309        let mut max_width_item = None;
3310
3311        let visible_worktrees: Vec<_> = project
3312            .visible_worktrees(cx)
3313            .map(|worktree| worktree.read(cx).snapshot())
3314            .collect();
3315        let hide_root = settings.hide_root && visible_worktrees.len() == 1;
3316        let hide_hidden = settings.hide_hidden;
3317        self.update_visible_entries_task = cx.spawn_in(window, async move |this, cx| {
3318            let new_state = cx
3319                .background_spawn(async move {
3320                    for worktree_snapshot in visible_worktrees {
3321                        let worktree_id = worktree_snapshot.id();
3322
3323                        let expanded_dir_ids = match new_state.expanded_dir_ids.entry(worktree_id) {
3324                            hash_map::Entry::Occupied(e) => e.into_mut(),
3325                            hash_map::Entry::Vacant(e) => {
3326                                // The first time a worktree's root entry becomes available,
3327                                // mark that root entry as expanded.
3328                                if let Some(entry) = worktree_snapshot.root_entry() {
3329                                    e.insert(vec![entry.id]).as_slice()
3330                                } else {
3331                                    &[]
3332                                }
3333                            }
3334                        };
3335
3336                        let mut new_entry_parent_id = None;
3337                        let mut new_entry_kind = EntryKind::Dir;
3338                        if let Some(edit_state) = &new_state.edit_state
3339                            && edit_state.worktree_id == worktree_id
3340                            && edit_state.is_new_entry()
3341                        {
3342                            new_entry_parent_id = Some(edit_state.entry_id);
3343                            new_entry_kind = if edit_state.is_dir {
3344                                EntryKind::Dir
3345                            } else {
3346                                EntryKind::File
3347                            };
3348                        }
3349
3350                        let mut visible_worktree_entries = Vec::new();
3351                        let mut entry_iter =
3352                            GitTraversal::new(&repo_snapshots, worktree_snapshot.entries(true, 0));
3353                        let mut auto_folded_ancestors = vec![];
3354                        let worktree_abs_path = worktree_snapshot.abs_path();
3355                        while let Some(entry) = entry_iter.entry() {
3356                            if hide_root && Some(entry.entry) == worktree_snapshot.root_entry() {
3357                                if new_entry_parent_id == Some(entry.id) {
3358                                    visible_worktree_entries.push(Self::create_new_git_entry(
3359                                        entry.entry,
3360                                        entry.git_summary,
3361                                        new_entry_kind,
3362                                    ));
3363                                    new_entry_parent_id = None;
3364                                }
3365                                entry_iter.advance();
3366                                continue;
3367                            }
3368                            if auto_collapse_dirs && entry.kind.is_dir() {
3369                                auto_folded_ancestors.push(entry.id);
3370                                if !new_state.unfolded_dir_ids.contains(&entry.id)
3371                                    && let Some(root_path) = worktree_snapshot.root_entry()
3372                                {
3373                                    let mut child_entries =
3374                                        worktree_snapshot.child_entries(&entry.path);
3375                                    if let Some(child) = child_entries.next()
3376                                        && entry.path != root_path.path
3377                                        && child_entries.next().is_none()
3378                                        && child.kind.is_dir()
3379                                    {
3380                                        entry_iter.advance();
3381
3382                                        continue;
3383                                    }
3384                                }
3385                                let depth = old_ancestors
3386                                    .get(&entry.id)
3387                                    .map(|ancestor| ancestor.current_ancestor_depth)
3388                                    .unwrap_or_default()
3389                                    .min(auto_folded_ancestors.len());
3390                                if let Some(edit_state) = &mut new_state.edit_state
3391                                    && edit_state.entry_id == entry.id
3392                                {
3393                                    edit_state.depth = depth;
3394                                }
3395                                let mut ancestors = std::mem::take(&mut auto_folded_ancestors);
3396                                if ancestors.len() > 1 {
3397                                    ancestors.reverse();
3398                                    new_state.ancestors.insert(
3399                                        entry.id,
3400                                        FoldedAncestors {
3401                                            current_ancestor_depth: depth,
3402                                            ancestors,
3403                                        },
3404                                    );
3405                                }
3406                            }
3407                            auto_folded_ancestors.clear();
3408                            if (!hide_gitignore || !entry.is_ignored)
3409                                && (!hide_hidden || !entry.is_hidden)
3410                            {
3411                                visible_worktree_entries.push(entry.to_owned());
3412                            }
3413                            let precedes_new_entry = if let Some(new_entry_id) = new_entry_parent_id
3414                            {
3415                                entry.id == new_entry_id || {
3416                                    new_state.ancestors.get(&entry.id).is_some_and(|entries| {
3417                                        entries.ancestors.contains(&new_entry_id)
3418                                    })
3419                                }
3420                            } else {
3421                                false
3422                            };
3423                            if precedes_new_entry
3424                                && (!hide_gitignore || !entry.is_ignored)
3425                                && (!hide_hidden || !entry.is_hidden)
3426                            {
3427                                visible_worktree_entries.push(Self::create_new_git_entry(
3428                                    entry.entry,
3429                                    entry.git_summary,
3430                                    new_entry_kind,
3431                                ));
3432                            }
3433
3434                            let (depth, chars) = if Some(entry.entry)
3435                                == worktree_snapshot.root_entry()
3436                            {
3437                                let Some(path_name) = worktree_abs_path.file_name() else {
3438                                    continue;
3439                                };
3440                                let depth = 0;
3441                                (depth, path_name.to_string_lossy().chars().count())
3442                            } else if entry.is_file() {
3443                                let Some(path_name) = entry
3444                                    .path
3445                                    .file_name()
3446                                    .with_context(|| {
3447                                        format!("Non-root entry has no file name: {entry:?}")
3448                                    })
3449                                    .log_err()
3450                                else {
3451                                    continue;
3452                                };
3453                                let depth = entry.path.ancestors().count() - 1;
3454                                (depth, path_name.chars().count())
3455                            } else {
3456                                let path = new_state
3457                                    .ancestors
3458                                    .get(&entry.id)
3459                                    .and_then(|ancestors| {
3460                                        let outermost_ancestor = ancestors.ancestors.last()?;
3461                                        let root_folded_entry = worktree_snapshot
3462                                            .entry_for_id(*outermost_ancestor)?
3463                                            .path
3464                                            .as_ref();
3465                                        entry.path.strip_prefix(root_folded_entry).ok().and_then(
3466                                            |suffix| {
3467                                                Some(
3468                                                    RelPath::unix(root_folded_entry.file_name()?)
3469                                                        .unwrap()
3470                                                        .join(suffix),
3471                                                )
3472                                            },
3473                                        )
3474                                    })
3475                                    .or_else(|| {
3476                                        entry.path.file_name().map(|file_name| {
3477                                            RelPath::unix(file_name).unwrap().into()
3478                                        })
3479                                    })
3480                                    .unwrap_or_else(|| entry.path.clone());
3481                                let depth = path.components().count();
3482                                (depth, path.as_unix_str().chars().count())
3483                            };
3484                            let width_estimate =
3485                                item_width_estimate(depth, chars, entry.canonical_path.is_some());
3486
3487                            match max_width_item.as_mut() {
3488                                Some((id, worktree_id, width)) => {
3489                                    if *width < width_estimate {
3490                                        *id = entry.id;
3491                                        *worktree_id = worktree_snapshot.id();
3492                                        *width = width_estimate;
3493                                    }
3494                                }
3495                                None => {
3496                                    max_width_item =
3497                                        Some((entry.id, worktree_snapshot.id(), width_estimate))
3498                                }
3499                            }
3500
3501                            if expanded_dir_ids.binary_search(&entry.id).is_err()
3502                                && entry_iter.advance_to_sibling()
3503                            {
3504                                continue;
3505                            }
3506                            entry_iter.advance();
3507                        }
3508
3509                        par_sort_worktree_entries(&mut visible_worktree_entries);
3510                        new_state.visible_entries.push(VisibleEntriesForWorktree {
3511                            worktree_id,
3512                            entries: visible_worktree_entries,
3513                            index: OnceCell::new(),
3514                        })
3515                    }
3516                    if let Some((project_entry_id, worktree_id, _)) = max_width_item {
3517                        let mut visited_worktrees_length = 0;
3518                        let index = new_state
3519                            .visible_entries
3520                            .iter()
3521                            .find_map(|visible_entries| {
3522                                if worktree_id == visible_entries.worktree_id {
3523                                    visible_entries
3524                                        .entries
3525                                        .iter()
3526                                        .position(|entry| entry.id == project_entry_id)
3527                                } else {
3528                                    visited_worktrees_length += visible_entries.entries.len();
3529                                    None
3530                                }
3531                            });
3532                        if let Some(index) = index {
3533                            new_state.max_width_item_index = Some(visited_worktrees_length + index);
3534                        }
3535                    }
3536                    new_state
3537                })
3538                .await;
3539            this.update_in(cx, |this, window, cx| {
3540                let current_selection = this.state.selection;
3541                this.state = new_state;
3542                if let Some((worktree_id, entry_id)) = new_selected_entry {
3543                    this.state.selection = Some(SelectedEntry {
3544                        worktree_id,
3545                        entry_id,
3546                    });
3547                } else {
3548                    this.state.selection = current_selection;
3549                }
3550                let elapsed = now.elapsed();
3551                if this.last_reported_update.elapsed() > Duration::from_secs(3600) {
3552                    telemetry::event!(
3553                        "Project Panel Updated",
3554                        elapsed_ms = elapsed.as_millis() as u64,
3555                        worktree_entries = this
3556                            .state
3557                            .visible_entries
3558                            .iter()
3559                            .map(|worktree| worktree.entries.len())
3560                            .sum::<usize>(),
3561                    )
3562                }
3563                if focus_filename_editor {
3564                    this.filename_editor.update(cx, |editor, cx| {
3565                        editor.clear(window, cx);
3566                        window.focus(&editor.focus_handle(cx));
3567                    });
3568                }
3569                if autoscroll {
3570                    this.autoscroll(cx);
3571                }
3572                cx.notify();
3573            })
3574            .ok();
3575        });
3576    }
3577
3578    fn expand_entry(
3579        &mut self,
3580        worktree_id: WorktreeId,
3581        entry_id: ProjectEntryId,
3582        cx: &mut Context<Self>,
3583    ) {
3584        self.project.update(cx, |project, cx| {
3585            if let Some((worktree, expanded_dir_ids)) = project
3586                .worktree_for_id(worktree_id, cx)
3587                .zip(self.state.expanded_dir_ids.get_mut(&worktree_id))
3588            {
3589                project.expand_entry(worktree_id, entry_id, cx);
3590                let worktree = worktree.read(cx);
3591
3592                if let Some(mut entry) = worktree.entry_for_id(entry_id) {
3593                    loop {
3594                        if let Err(ix) = expanded_dir_ids.binary_search(&entry.id) {
3595                            expanded_dir_ids.insert(ix, entry.id);
3596                        }
3597
3598                        if let Some(parent_entry) =
3599                            entry.path.parent().and_then(|p| worktree.entry_for_path(p))
3600                        {
3601                            entry = parent_entry;
3602                        } else {
3603                            break;
3604                        }
3605                    }
3606                }
3607            }
3608        });
3609    }
3610
3611    fn drop_external_files(
3612        &mut self,
3613        paths: &[PathBuf],
3614        entry_id: ProjectEntryId,
3615        window: &mut Window,
3616        cx: &mut Context<Self>,
3617    ) {
3618        let mut paths: Vec<Arc<Path>> = paths.iter().map(|path| Arc::from(path.clone())).collect();
3619
3620        let open_file_after_drop = paths.len() == 1 && paths[0].is_file();
3621
3622        let Some((target_directory, worktree, fs)) = maybe!({
3623            let project = self.project.read(cx);
3624            let fs = project.fs().clone();
3625            let worktree = project.worktree_for_entry(entry_id, cx)?;
3626            let entry = worktree.read(cx).entry_for_id(entry_id)?;
3627            let path = entry.path.clone();
3628            let target_directory = if entry.is_dir() {
3629                path
3630            } else {
3631                path.parent()?.into()
3632            };
3633            Some((target_directory, worktree, fs))
3634        }) else {
3635            return;
3636        };
3637
3638        let mut paths_to_replace = Vec::new();
3639        for path in &paths {
3640            if let Some(name) = path.file_name()
3641                && let Some(name) = name.to_str()
3642            {
3643                let target_path = target_directory.join(RelPath::unix(name).unwrap());
3644                if worktree.read(cx).entry_for_path(&target_path).is_some() {
3645                    paths_to_replace.push((name.to_string(), path.clone()));
3646                }
3647            }
3648        }
3649
3650        cx.spawn_in(window, async move |this, cx| {
3651            async move {
3652                for (filename, original_path) in &paths_to_replace {
3653                    let answer = cx.update(|window, cx| {
3654                        window
3655                            .prompt(
3656                                PromptLevel::Info,
3657                                format!("A file or folder with name {filename} already exists in the destination folder. Do you want to replace it?").as_str(),
3658                                None,
3659                                &["Replace", "Cancel"],
3660                                cx,
3661                            )
3662                    })?.await?;
3663
3664                    if answer == 1
3665                        && let Some(item_idx) = paths.iter().position(|p| p == original_path) {
3666                            paths.remove(item_idx);
3667                        }
3668                }
3669
3670                if paths.is_empty() {
3671                    return Ok(());
3672                }
3673
3674                let task = worktree.update( cx, |worktree, cx| {
3675                    worktree.copy_external_entries(target_directory, paths, fs, cx)
3676                })?;
3677
3678                let opened_entries = task.await.with_context(|| "failed to copy external paths")?;
3679                this.update(cx, |this, cx| {
3680                    if open_file_after_drop && !opened_entries.is_empty() {
3681                        this.open_entry(opened_entries[0], true, false, cx);
3682                    }
3683                })
3684            }
3685            .log_err().await
3686        })
3687        .detach();
3688    }
3689
3690    fn refresh_drag_cursor_style(
3691        &self,
3692        modifiers: &Modifiers,
3693        window: &mut Window,
3694        cx: &mut Context<Self>,
3695    ) {
3696        if let Some(existing_cursor) = cx.active_drag_cursor_style() {
3697            let new_cursor = if Self::is_copy_modifier_set(modifiers) {
3698                CursorStyle::DragCopy
3699            } else {
3700                CursorStyle::PointingHand
3701            };
3702            if existing_cursor != new_cursor {
3703                cx.set_active_drag_cursor_style(new_cursor, window);
3704            }
3705        }
3706    }
3707
3708    fn is_copy_modifier_set(modifiers: &Modifiers) -> bool {
3709        cfg!(target_os = "macos") && modifiers.alt
3710            || cfg!(not(target_os = "macos")) && modifiers.control
3711    }
3712
3713    fn drag_onto(
3714        &mut self,
3715        selections: &DraggedSelection,
3716        target_entry_id: ProjectEntryId,
3717        is_file: bool,
3718        window: &mut Window,
3719        cx: &mut Context<Self>,
3720    ) {
3721        if Self::is_copy_modifier_set(&window.modifiers()) {
3722            let _ = maybe!({
3723                let project = self.project.read(cx);
3724                let target_worktree = project.worktree_for_entry(target_entry_id, cx)?;
3725                let worktree_id = target_worktree.read(cx).id();
3726                let target_entry = target_worktree
3727                    .read(cx)
3728                    .entry_for_id(target_entry_id)?
3729                    .clone();
3730
3731                let mut copy_tasks = Vec::new();
3732                let mut disambiguation_range = None;
3733                for selection in selections.items() {
3734                    let (new_path, new_disambiguation_range) = self.create_paste_path(
3735                        selection,
3736                        (target_worktree.clone(), &target_entry),
3737                        cx,
3738                    )?;
3739
3740                    let task = self.project.update(cx, |project, cx| {
3741                        project.copy_entry(selection.entry_id, (worktree_id, new_path).into(), cx)
3742                    });
3743                    copy_tasks.push(task);
3744                    disambiguation_range = new_disambiguation_range.or(disambiguation_range);
3745                }
3746
3747                let item_count = copy_tasks.len();
3748
3749                cx.spawn_in(window, async move |project_panel, cx| {
3750                    let mut last_succeed = None;
3751                    for task in copy_tasks.into_iter() {
3752                        if let Some(Some(entry)) = task.await.log_err() {
3753                            last_succeed = Some(entry.id);
3754                        }
3755                    }
3756                    // update selection
3757                    if let Some(entry_id) = last_succeed {
3758                        project_panel
3759                            .update_in(cx, |project_panel, window, cx| {
3760                                project_panel.state.selection = Some(SelectedEntry {
3761                                    worktree_id,
3762                                    entry_id,
3763                                });
3764
3765                                // if only one entry was dragged and it was disambiguated, open the rename editor
3766                                if item_count == 1 && disambiguation_range.is_some() {
3767                                    project_panel.rename_impl(disambiguation_range, window, cx);
3768                                }
3769                            })
3770                            .ok();
3771                    }
3772                })
3773                .detach();
3774                Some(())
3775            });
3776        } else {
3777            for selection in selections.items() {
3778                self.move_entry(selection.entry_id, target_entry_id, is_file, cx);
3779            }
3780        }
3781    }
3782
3783    fn index_for_entry(
3784        &self,
3785        entry_id: ProjectEntryId,
3786        worktree_id: WorktreeId,
3787    ) -> Option<(usize, usize, usize)> {
3788        let mut total_ix = 0;
3789        for (worktree_ix, visible) in self.state.visible_entries.iter().enumerate() {
3790            if worktree_id != visible.worktree_id {
3791                total_ix += visible.entries.len();
3792                continue;
3793            }
3794
3795            return visible
3796                .entries
3797                .iter()
3798                .enumerate()
3799                .find(|(_, entry)| entry.id == entry_id)
3800                .map(|(ix, _)| (worktree_ix, ix, total_ix + ix));
3801        }
3802        None
3803    }
3804
3805    fn entry_at_index(&self, index: usize) -> Option<(WorktreeId, GitEntryRef<'_>)> {
3806        let mut offset = 0;
3807        for worktree in &self.state.visible_entries {
3808            let current_len = worktree.entries.len();
3809            if index < offset + current_len {
3810                return worktree
3811                    .entries
3812                    .get(index - offset)
3813                    .map(|entry| (worktree.worktree_id, entry.to_ref()));
3814            }
3815            offset += current_len;
3816        }
3817        None
3818    }
3819
3820    fn iter_visible_entries(
3821        &self,
3822        range: Range<usize>,
3823        window: &mut Window,
3824        cx: &mut Context<ProjectPanel>,
3825        mut callback: impl FnMut(
3826            &Entry,
3827            usize,
3828            &HashSet<Arc<RelPath>>,
3829            &mut Window,
3830            &mut Context<ProjectPanel>,
3831        ),
3832    ) {
3833        let mut ix = 0;
3834        for visible in &self.state.visible_entries {
3835            if ix >= range.end {
3836                return;
3837            }
3838
3839            if ix + visible.entries.len() <= range.start {
3840                ix += visible.entries.len();
3841                continue;
3842            }
3843
3844            let end_ix = range.end.min(ix + visible.entries.len());
3845            let entry_range = range.start.saturating_sub(ix)..end_ix - ix;
3846            let entries = visible
3847                .index
3848                .get_or_init(|| visible.entries.iter().map(|e| e.path.clone()).collect());
3849            let base_index = ix + entry_range.start;
3850            for (i, entry) in visible.entries[entry_range].iter().enumerate() {
3851                let global_index = base_index + i;
3852                callback(entry, global_index, entries, window, cx);
3853            }
3854            ix = end_ix;
3855        }
3856    }
3857
3858    fn for_each_visible_entry(
3859        &self,
3860        range: Range<usize>,
3861        window: &mut Window,
3862        cx: &mut Context<ProjectPanel>,
3863        mut callback: impl FnMut(ProjectEntryId, EntryDetails, &mut Window, &mut Context<ProjectPanel>),
3864    ) {
3865        let mut ix = 0;
3866        for visible in &self.state.visible_entries {
3867            if ix >= range.end {
3868                return;
3869            }
3870
3871            if ix + visible.entries.len() <= range.start {
3872                ix += visible.entries.len();
3873                continue;
3874            }
3875
3876            let end_ix = range.end.min(ix + visible.entries.len());
3877            let git_status_setting = {
3878                let settings = ProjectPanelSettings::get_global(cx);
3879                settings.git_status
3880            };
3881            if let Some(worktree) = self
3882                .project
3883                .read(cx)
3884                .worktree_for_id(visible.worktree_id, cx)
3885            {
3886                let snapshot = worktree.read(cx).snapshot();
3887                let root_name = snapshot.root_name();
3888
3889                let entry_range = range.start.saturating_sub(ix)..end_ix - ix;
3890                let entries = visible
3891                    .index
3892                    .get_or_init(|| visible.entries.iter().map(|e| e.path.clone()).collect());
3893                for entry in visible.entries[entry_range].iter() {
3894                    let status = git_status_setting
3895                        .then_some(entry.git_summary)
3896                        .unwrap_or_default();
3897
3898                    let mut details = self.details_for_entry(
3899                        entry,
3900                        visible.worktree_id,
3901                        root_name,
3902                        entries,
3903                        status,
3904                        None,
3905                        window,
3906                        cx,
3907                    );
3908
3909                    if let Some(edit_state) = &self.state.edit_state {
3910                        let is_edited_entry = if edit_state.is_new_entry() {
3911                            entry.id == NEW_ENTRY_ID
3912                        } else {
3913                            entry.id == edit_state.entry_id
3914                                || self.state.ancestors.get(&entry.id).is_some_and(
3915                                    |auto_folded_dirs| {
3916                                        auto_folded_dirs.ancestors.contains(&edit_state.entry_id)
3917                                    },
3918                                )
3919                        };
3920
3921                        if is_edited_entry {
3922                            if let Some(processing_filename) = &edit_state.processing_filename {
3923                                details.is_processing = true;
3924                                if let Some(ancestors) = edit_state
3925                                    .leaf_entry_id
3926                                    .and_then(|entry| self.state.ancestors.get(&entry))
3927                                {
3928                                    let position = ancestors.ancestors.iter().position(|entry_id| *entry_id == edit_state.entry_id).expect("Edited sub-entry should be an ancestor of selected leaf entry") + 1;
3929                                    let all_components = ancestors.ancestors.len();
3930
3931                                    let prefix_components = all_components - position;
3932                                    let suffix_components = position.checked_sub(1);
3933                                    let mut previous_components =
3934                                        Path::new(&details.filename).components();
3935                                    let mut new_path = previous_components
3936                                        .by_ref()
3937                                        .take(prefix_components)
3938                                        .collect::<PathBuf>();
3939                                    if let Some(last_component) =
3940                                        processing_filename.components().next_back()
3941                                    {
3942                                        new_path.push(last_component);
3943                                        previous_components.next();
3944                                    }
3945
3946                                    if suffix_components.is_some() {
3947                                        new_path.push(previous_components);
3948                                    }
3949                                    if let Some(str) = new_path.to_str() {
3950                                        details.filename.clear();
3951                                        details.filename.push_str(str);
3952                                    }
3953                                } else {
3954                                    details.filename.clear();
3955                                    details.filename.push_str(processing_filename.as_unix_str());
3956                                }
3957                            } else {
3958                                if edit_state.is_new_entry() {
3959                                    details.filename.clear();
3960                                }
3961                                details.is_editing = true;
3962                            }
3963                        }
3964                    }
3965
3966                    callback(entry.id, details, window, cx);
3967                }
3968            }
3969            ix = end_ix;
3970        }
3971    }
3972
3973    fn find_entry_in_worktree(
3974        &self,
3975        worktree_id: WorktreeId,
3976        reverse_search: bool,
3977        only_visible_entries: bool,
3978        predicate: impl Fn(GitEntryRef, WorktreeId) -> bool,
3979        cx: &mut Context<Self>,
3980    ) -> Option<GitEntry> {
3981        if only_visible_entries {
3982            let entries = self
3983                .state
3984                .visible_entries
3985                .iter()
3986                .find_map(|visible| {
3987                    if worktree_id == visible.worktree_id {
3988                        Some(&visible.entries)
3989                    } else {
3990                        None
3991                    }
3992                })?
3993                .clone();
3994
3995            return utils::ReversibleIterable::new(entries.iter(), reverse_search)
3996                .find(|ele| predicate(ele.to_ref(), worktree_id))
3997                .cloned();
3998        }
3999
4000        let repo_snapshots = self
4001            .project
4002            .read(cx)
4003            .git_store()
4004            .read(cx)
4005            .repo_snapshots(cx);
4006        let worktree = self.project.read(cx).worktree_for_id(worktree_id, cx)?;
4007        worktree.read_with(cx, |tree, _| {
4008            utils::ReversibleIterable::new(
4009                GitTraversal::new(&repo_snapshots, tree.entries(true, 0usize)),
4010                reverse_search,
4011            )
4012            .find_single_ended(|ele| predicate(*ele, worktree_id))
4013            .map(|ele| ele.to_owned())
4014        })
4015    }
4016
4017    fn find_entry(
4018        &self,
4019        start: Option<&SelectedEntry>,
4020        reverse_search: bool,
4021        predicate: impl Fn(GitEntryRef, WorktreeId) -> bool,
4022        cx: &mut Context<Self>,
4023    ) -> Option<SelectedEntry> {
4024        let mut worktree_ids: Vec<_> = self
4025            .state
4026            .visible_entries
4027            .iter()
4028            .map(|worktree| worktree.worktree_id)
4029            .collect();
4030        let repo_snapshots = self
4031            .project
4032            .read(cx)
4033            .git_store()
4034            .read(cx)
4035            .repo_snapshots(cx);
4036
4037        let mut last_found: Option<SelectedEntry> = None;
4038
4039        if let Some(start) = start {
4040            let worktree = self
4041                .project
4042                .read(cx)
4043                .worktree_for_id(start.worktree_id, cx)?
4044                .read(cx);
4045
4046            let search = {
4047                let entry = worktree.entry_for_id(start.entry_id)?;
4048                let root_entry = worktree.root_entry()?;
4049                let tree_id = worktree.id();
4050
4051                let mut first_iter = GitTraversal::new(
4052                    &repo_snapshots,
4053                    worktree.traverse_from_path(true, true, true, entry.path.as_ref()),
4054                );
4055
4056                if reverse_search {
4057                    first_iter.next();
4058                }
4059
4060                let first = first_iter
4061                    .enumerate()
4062                    .take_until(|(count, entry)| entry.entry == root_entry && *count != 0usize)
4063                    .map(|(_, entry)| entry)
4064                    .find(|ele| predicate(*ele, tree_id))
4065                    .map(|ele| ele.to_owned());
4066
4067                let second_iter =
4068                    GitTraversal::new(&repo_snapshots, worktree.entries(true, 0usize));
4069
4070                let second = if reverse_search {
4071                    second_iter
4072                        .take_until(|ele| ele.id == start.entry_id)
4073                        .filter(|ele| predicate(*ele, tree_id))
4074                        .last()
4075                        .map(|ele| ele.to_owned())
4076                } else {
4077                    second_iter
4078                        .take_while(|ele| ele.id != start.entry_id)
4079                        .filter(|ele| predicate(*ele, tree_id))
4080                        .last()
4081                        .map(|ele| ele.to_owned())
4082                };
4083
4084                if reverse_search {
4085                    Some((second, first))
4086                } else {
4087                    Some((first, second))
4088                }
4089            };
4090
4091            if let Some((first, second)) = search {
4092                let first = first.map(|entry| SelectedEntry {
4093                    worktree_id: start.worktree_id,
4094                    entry_id: entry.id,
4095                });
4096
4097                let second = second.map(|entry| SelectedEntry {
4098                    worktree_id: start.worktree_id,
4099                    entry_id: entry.id,
4100                });
4101
4102                if first.is_some() {
4103                    return first;
4104                }
4105                last_found = second;
4106
4107                let idx = worktree_ids
4108                    .iter()
4109                    .enumerate()
4110                    .find(|(_, ele)| **ele == start.worktree_id)
4111                    .map(|(idx, _)| idx);
4112
4113                if let Some(idx) = idx {
4114                    worktree_ids.rotate_left(idx + 1usize);
4115                    worktree_ids.pop();
4116                }
4117            }
4118        }
4119
4120        for tree_id in worktree_ids.into_iter() {
4121            if let Some(found) =
4122                self.find_entry_in_worktree(tree_id, reverse_search, false, &predicate, cx)
4123            {
4124                return Some(SelectedEntry {
4125                    worktree_id: tree_id,
4126                    entry_id: found.id,
4127                });
4128            }
4129        }
4130
4131        last_found
4132    }
4133
4134    fn find_visible_entry(
4135        &self,
4136        start: Option<&SelectedEntry>,
4137        reverse_search: bool,
4138        predicate: impl Fn(GitEntryRef, WorktreeId) -> bool,
4139        cx: &mut Context<Self>,
4140    ) -> Option<SelectedEntry> {
4141        let mut worktree_ids: Vec<_> = self
4142            .state
4143            .visible_entries
4144            .iter()
4145            .map(|worktree| worktree.worktree_id)
4146            .collect();
4147
4148        let mut last_found: Option<SelectedEntry> = None;
4149
4150        if let Some(start) = start {
4151            let entries = self
4152                .state
4153                .visible_entries
4154                .iter()
4155                .find(|worktree| worktree.worktree_id == start.worktree_id)
4156                .map(|worktree| &worktree.entries)?;
4157
4158            let mut start_idx = entries
4159                .iter()
4160                .enumerate()
4161                .find(|(_, ele)| ele.id == start.entry_id)
4162                .map(|(idx, _)| idx)?;
4163
4164            if reverse_search {
4165                start_idx = start_idx.saturating_add(1usize);
4166            }
4167
4168            let (left, right) = entries.split_at_checked(start_idx)?;
4169
4170            let (first_iter, second_iter) = if reverse_search {
4171                (
4172                    utils::ReversibleIterable::new(left.iter(), reverse_search),
4173                    utils::ReversibleIterable::new(right.iter(), reverse_search),
4174                )
4175            } else {
4176                (
4177                    utils::ReversibleIterable::new(right.iter(), reverse_search),
4178                    utils::ReversibleIterable::new(left.iter(), reverse_search),
4179                )
4180            };
4181
4182            let first_search = first_iter.find(|ele| predicate(ele.to_ref(), start.worktree_id));
4183            let second_search = second_iter.find(|ele| predicate(ele.to_ref(), start.worktree_id));
4184
4185            if first_search.is_some() {
4186                return first_search.map(|entry| SelectedEntry {
4187                    worktree_id: start.worktree_id,
4188                    entry_id: entry.id,
4189                });
4190            }
4191
4192            last_found = second_search.map(|entry| SelectedEntry {
4193                worktree_id: start.worktree_id,
4194                entry_id: entry.id,
4195            });
4196
4197            let idx = worktree_ids
4198                .iter()
4199                .enumerate()
4200                .find(|(_, ele)| **ele == start.worktree_id)
4201                .map(|(idx, _)| idx);
4202
4203            if let Some(idx) = idx {
4204                worktree_ids.rotate_left(idx + 1usize);
4205                worktree_ids.pop();
4206            }
4207        }
4208
4209        for tree_id in worktree_ids.into_iter() {
4210            if let Some(found) =
4211                self.find_entry_in_worktree(tree_id, reverse_search, true, &predicate, cx)
4212            {
4213                return Some(SelectedEntry {
4214                    worktree_id: tree_id,
4215                    entry_id: found.id,
4216                });
4217            }
4218        }
4219
4220        last_found
4221    }
4222
4223    fn calculate_depth_and_difference(
4224        entry: &Entry,
4225        visible_worktree_entries: &HashSet<Arc<RelPath>>,
4226    ) -> (usize, usize) {
4227        let (depth, difference) = entry
4228            .path
4229            .ancestors()
4230            .skip(1) // Skip the entry itself
4231            .find_map(|ancestor| {
4232                if let Some(parent_entry) = visible_worktree_entries.get(ancestor) {
4233                    let entry_path_components_count = entry.path.components().count();
4234                    let parent_path_components_count = parent_entry.components().count();
4235                    let difference = entry_path_components_count - parent_path_components_count;
4236                    let depth = parent_entry
4237                        .ancestors()
4238                        .skip(1)
4239                        .filter(|ancestor| visible_worktree_entries.contains(*ancestor))
4240                        .count();
4241                    Some((depth + 1, difference))
4242                } else {
4243                    None
4244                }
4245            })
4246            .unwrap_or_else(|| (0, entry.path.components().count()));
4247
4248        (depth, difference)
4249    }
4250
4251    fn highlight_entry_for_external_drag(
4252        &self,
4253        target_entry: &Entry,
4254        target_worktree: &Worktree,
4255    ) -> Option<ProjectEntryId> {
4256        // Always highlight directory or parent directory if it's file
4257        if target_entry.is_dir() {
4258            Some(target_entry.id)
4259        } else {
4260            target_entry
4261                .path
4262                .parent()
4263                .and_then(|parent_path| target_worktree.entry_for_path(parent_path))
4264                .map(|parent_entry| parent_entry.id)
4265        }
4266    }
4267
4268    fn highlight_entry_for_selection_drag(
4269        &self,
4270        target_entry: &Entry,
4271        target_worktree: &Worktree,
4272        drag_state: &DraggedSelection,
4273        cx: &Context<Self>,
4274    ) -> Option<ProjectEntryId> {
4275        let target_parent_path = target_entry.path.parent();
4276
4277        // In case of single item drag, we do not highlight existing
4278        // directory which item belongs too
4279        if drag_state.items().count() == 1
4280            && drag_state.active_selection.worktree_id == target_worktree.id()
4281        {
4282            let active_entry_path = self
4283                .project
4284                .read(cx)
4285                .path_for_entry(drag_state.active_selection.entry_id, cx)?;
4286
4287            if let Some(active_parent_path) = active_entry_path.path.parent() {
4288                // Do not highlight active entry parent
4289                if active_parent_path == target_entry.path.as_ref() {
4290                    return None;
4291                }
4292
4293                // Do not highlight active entry sibling files
4294                if Some(active_parent_path) == target_parent_path && target_entry.is_file() {
4295                    return None;
4296                }
4297            }
4298        }
4299
4300        // Always highlight directory or parent directory if it's file
4301        if target_entry.is_dir() {
4302            Some(target_entry.id)
4303        } else {
4304            target_parent_path
4305                .and_then(|parent_path| target_worktree.entry_for_path(parent_path))
4306                .map(|parent_entry| parent_entry.id)
4307        }
4308    }
4309
4310    fn should_highlight_background_for_selection_drag(
4311        &self,
4312        drag_state: &DraggedSelection,
4313        last_root_id: ProjectEntryId,
4314        cx: &App,
4315    ) -> bool {
4316        // Always highlight for multiple entries
4317        if drag_state.items().count() > 1 {
4318            return true;
4319        }
4320
4321        // Since root will always have empty relative path
4322        if let Some(entry_path) = self
4323            .project
4324            .read(cx)
4325            .path_for_entry(drag_state.active_selection.entry_id, cx)
4326        {
4327            if let Some(parent_path) = entry_path.path.parent() {
4328                if !parent_path.is_empty() {
4329                    return true;
4330                }
4331            }
4332        }
4333
4334        // If parent is empty, check if different worktree
4335        if let Some(last_root_worktree_id) = self
4336            .project
4337            .read(cx)
4338            .worktree_id_for_entry(last_root_id, cx)
4339        {
4340            if drag_state.active_selection.worktree_id != last_root_worktree_id {
4341                return true;
4342            }
4343        }
4344
4345        false
4346    }
4347
4348    fn render_entry(
4349        &self,
4350        entry_id: ProjectEntryId,
4351        details: EntryDetails,
4352        window: &mut Window,
4353        cx: &mut Context<Self>,
4354    ) -> Stateful<Div> {
4355        const GROUP_NAME: &str = "project_entry";
4356
4357        let kind = details.kind;
4358        let is_sticky = details.sticky.is_some();
4359        let sticky_index = details.sticky.as_ref().map(|this| this.sticky_index);
4360        let settings = ProjectPanelSettings::get_global(cx);
4361        let show_editor = details.is_editing && !details.is_processing;
4362
4363        let selection = SelectedEntry {
4364            worktree_id: details.worktree_id,
4365            entry_id,
4366        };
4367
4368        let is_marked = self.marked_entries.contains(&selection);
4369        let is_active = self
4370            .state
4371            .selection
4372            .is_some_and(|selection| selection.entry_id == entry_id);
4373
4374        let file_name = details.filename.clone();
4375
4376        let mut icon = details.icon.clone();
4377        if settings.file_icons && show_editor && details.kind.is_file() {
4378            let filename = self.filename_editor.read(cx).text(cx);
4379            if filename.len() > 2 {
4380                icon = FileIcons::get_icon(Path::new(&filename), cx);
4381            }
4382        }
4383
4384        let filename_text_color = details.filename_text_color;
4385        let diagnostic_severity = details.diagnostic_severity;
4386        let item_colors = get_item_color(is_sticky, cx);
4387
4388        let canonical_path = details
4389            .canonical_path
4390            .as_ref()
4391            .map(|f| f.to_string_lossy().into_owned());
4392        let path_style = self.project.read(cx).path_style(cx);
4393        let path = details.path.clone();
4394        let path_for_external_paths = path.clone();
4395        let path_for_dragged_selection = path.clone();
4396
4397        let depth = details.depth;
4398        let worktree_id = details.worktree_id;
4399        let dragged_selection = DraggedSelection {
4400            active_selection: SelectedEntry {
4401                worktree_id: selection.worktree_id,
4402                entry_id: self.resolve_entry(selection.entry_id),
4403            },
4404            marked_selections: Arc::from(self.marked_entries.clone()),
4405        };
4406
4407        let bg_color = if is_marked {
4408            item_colors.marked
4409        } else {
4410            item_colors.default
4411        };
4412
4413        let bg_hover_color = if is_marked {
4414            item_colors.marked
4415        } else {
4416            item_colors.hover
4417        };
4418
4419        let validation_color_and_message = if show_editor {
4420            match self
4421                .state
4422                .edit_state
4423                .as_ref()
4424                .map_or(ValidationState::None, |e| e.validation_state.clone())
4425            {
4426                ValidationState::Error(msg) => Some((Color::Error.color(cx), msg)),
4427                ValidationState::Warning(msg) => Some((Color::Warning.color(cx), msg)),
4428                ValidationState::None => None,
4429            }
4430        } else {
4431            None
4432        };
4433
4434        let border_color =
4435            if !self.mouse_down && is_active && self.focus_handle.contains_focused(window, cx) {
4436                match validation_color_and_message {
4437                    Some((color, _)) => color,
4438                    None => item_colors.focused,
4439                }
4440            } else {
4441                bg_color
4442            };
4443
4444        let border_hover_color =
4445            if !self.mouse_down && is_active && self.focus_handle.contains_focused(window, cx) {
4446                match validation_color_and_message {
4447                    Some((color, _)) => color,
4448                    None => item_colors.focused,
4449                }
4450            } else {
4451                bg_hover_color
4452            };
4453
4454        let folded_directory_drag_target = self.folded_directory_drag_target;
4455        let is_highlighted = {
4456            if let Some(highlight_entry_id) =
4457                self.drag_target_entry
4458                    .as_ref()
4459                    .and_then(|drag_target| match drag_target {
4460                        DragTarget::Entry {
4461                            highlight_entry_id, ..
4462                        } => Some(*highlight_entry_id),
4463                        DragTarget::Background => self.state.last_worktree_root_id,
4464                    })
4465            {
4466                // Highlight if same entry or it's children
4467                if entry_id == highlight_entry_id {
4468                    true
4469                } else {
4470                    maybe!({
4471                        let worktree = self.project.read(cx).worktree_for_id(worktree_id, cx)?;
4472                        let highlight_entry = worktree.read(cx).entry_for_id(highlight_entry_id)?;
4473                        Some(path.starts_with(&highlight_entry.path))
4474                    })
4475                    .unwrap_or(false)
4476                }
4477            } else {
4478                false
4479            }
4480        };
4481
4482        let id: ElementId = if is_sticky {
4483            SharedString::from(format!("project_panel_sticky_item_{}", entry_id.to_usize())).into()
4484        } else {
4485            (entry_id.to_proto() as usize).into()
4486        };
4487
4488        div()
4489            .id(id.clone())
4490            .relative()
4491            .group(GROUP_NAME)
4492            .cursor_pointer()
4493            .rounded_none()
4494            .bg(bg_color)
4495            .border_1()
4496            .border_r_2()
4497            .border_color(border_color)
4498            .hover(|style| style.bg(bg_hover_color).border_color(border_hover_color))
4499            .when(is_sticky, |this| {
4500                this.block_mouse_except_scroll()
4501            })
4502            .when(!is_sticky, |this| {
4503                this
4504                .when(is_highlighted && folded_directory_drag_target.is_none(), |this| this.border_color(transparent_white()).bg(item_colors.drag_over))
4505                .when(settings.drag_and_drop, |this| this
4506                .on_drag_move::<ExternalPaths>(cx.listener(
4507                    move |this, event: &DragMoveEvent<ExternalPaths>, _, cx| {
4508                        let is_current_target = this.drag_target_entry.as_ref()
4509                             .and_then(|entry| match entry {
4510                                 DragTarget::Entry { entry_id: target_id, .. } => Some(*target_id),
4511                                 DragTarget::Background { .. } => None,
4512                             }) == Some(entry_id);
4513
4514                        if !event.bounds.contains(&event.event.position) {
4515                            // Entry responsible for setting drag target is also responsible to
4516                            // clear it up after drag is out of bounds
4517                            if is_current_target {
4518                                this.drag_target_entry = None;
4519                            }
4520                            return;
4521                        }
4522
4523                        if is_current_target {
4524                            return;
4525                        }
4526
4527                        this.marked_entries.clear();
4528
4529                        let Some((entry_id, highlight_entry_id)) = maybe!({
4530                            let target_worktree = this.project.read(cx).worktree_for_id(selection.worktree_id, cx)?.read(cx);
4531                            let target_entry = target_worktree.entry_for_path(&path_for_external_paths)?;
4532                            let highlight_entry_id = this.highlight_entry_for_external_drag(target_entry, target_worktree)?;
4533                            Some((target_entry.id, highlight_entry_id))
4534                        }) else {
4535                            return;
4536                        };
4537
4538                        this.drag_target_entry = Some(DragTarget::Entry {
4539                            entry_id,
4540                            highlight_entry_id,
4541                        });
4542
4543                    },
4544                ))
4545                .on_drop(cx.listener(
4546                    move |this, external_paths: &ExternalPaths, window, cx| {
4547                        this.drag_target_entry = None;
4548                        this.hover_scroll_task.take();
4549                        this.drop_external_files(external_paths.paths(), entry_id, window, cx);
4550                        cx.stop_propagation();
4551                    },
4552                ))
4553                .on_drag_move::<DraggedSelection>(cx.listener(
4554                    move |this, event: &DragMoveEvent<DraggedSelection>, window, cx| {
4555                        let is_current_target = this.drag_target_entry.as_ref()
4556                             .and_then(|entry| match entry {
4557                                 DragTarget::Entry { entry_id: target_id, .. } => Some(*target_id),
4558                                 DragTarget::Background { .. } => None,
4559                             }) == Some(entry_id);
4560
4561                        if !event.bounds.contains(&event.event.position) {
4562                            // Entry responsible for setting drag target is also responsible to
4563                            // clear it up after drag is out of bounds
4564                            if is_current_target {
4565                                this.drag_target_entry = None;
4566                            }
4567                            return;
4568                        }
4569
4570                        if is_current_target {
4571                            return;
4572                        }
4573
4574                        let drag_state = event.drag(cx);
4575
4576                        if drag_state.items().count() == 1 {
4577                            this.marked_entries.clear();
4578                            this.marked_entries.push(drag_state.active_selection);
4579                        }
4580
4581                        let Some((entry_id, highlight_entry_id)) = maybe!({
4582                            let target_worktree = this.project.read(cx).worktree_for_id(selection.worktree_id, cx)?.read(cx);
4583                            let target_entry = target_worktree.entry_for_path(&path_for_dragged_selection)?;
4584                            let highlight_entry_id = this.highlight_entry_for_selection_drag(target_entry, target_worktree, drag_state, cx)?;
4585                            Some((target_entry.id, highlight_entry_id))
4586                        }) else {
4587                            return;
4588                        };
4589
4590                        this.drag_target_entry = Some(DragTarget::Entry {
4591                            entry_id,
4592                            highlight_entry_id,
4593                        });
4594
4595                        this.hover_expand_task.take();
4596
4597                        if !kind.is_dir()
4598                            || this
4599                                .state
4600                                .expanded_dir_ids
4601                                .get(&details.worktree_id)
4602                                .is_some_and(|ids| ids.binary_search(&entry_id).is_ok())
4603                        {
4604                            return;
4605                        }
4606
4607                        let bounds = event.bounds;
4608                        this.hover_expand_task =
4609                            Some(cx.spawn_in(window, async move |this, cx| {
4610                                cx.background_executor()
4611                                    .timer(Duration::from_millis(500))
4612                                    .await;
4613                                this.update_in(cx, |this, window, cx| {
4614                                    this.hover_expand_task.take();
4615                                    if this.drag_target_entry.as_ref().and_then(|entry| match entry {
4616                                        DragTarget::Entry { entry_id: target_id, .. } => Some(*target_id),
4617                                        DragTarget::Background { .. } => None,
4618                                    }) == Some(entry_id)
4619                                        && bounds.contains(&window.mouse_position())
4620                                    {
4621                                        this.expand_entry(worktree_id, entry_id, cx);
4622                                        this.update_visible_entries(
4623                                            Some((worktree_id, entry_id)),
4624                                            false,
4625                                            false,
4626                                            window,
4627                                            cx,
4628                                        );
4629                                        cx.notify();
4630                                    }
4631                                })
4632                                .ok();
4633                            }));
4634                    },
4635                ))
4636                .on_drag(
4637                    dragged_selection,
4638                    {
4639                        let active_component = self.state.ancestors.get(&entry_id).and_then(|ancestors| ancestors.active_component(&details.filename));
4640                        move |selection, click_offset, _window, cx| {
4641                            let filename = active_component.as_ref().unwrap_or_else(|| &details.filename);
4642                            cx.new(|_| DraggedProjectEntryView {
4643                                icon: details.icon.clone(),
4644                                filename: filename.clone(),
4645                                click_offset,
4646                                selection: selection.active_selection,
4647                                selections: selection.marked_selections.clone(),
4648                            })
4649                        }
4650                    }
4651                )
4652                .on_drop(
4653                    cx.listener(move |this, selections: &DraggedSelection, window, cx| {
4654                        this.drag_target_entry = None;
4655                        this.hover_scroll_task.take();
4656                        this.hover_expand_task.take();
4657                        if folded_directory_drag_target.is_some() {
4658                            return;
4659                        }
4660                        this.drag_onto(selections, entry_id, kind.is_file(), window, cx);
4661                    }),
4662                ))
4663            })
4664            .on_mouse_down(
4665                MouseButton::Left,
4666                cx.listener(move |this, _, _, cx| {
4667                    this.mouse_down = true;
4668                    cx.propagate();
4669                }),
4670            )
4671            .on_click(
4672                cx.listener(move |project_panel, event: &gpui::ClickEvent, window, cx| {
4673                    if event.is_right_click() || event.first_focus()
4674                        || show_editor
4675                    {
4676                        return;
4677                    }
4678                    if event.standard_click() {
4679                        project_panel.mouse_down = false;
4680                    }
4681                    cx.stop_propagation();
4682
4683                    if let Some(selection) = project_panel.state.selection.filter(|_| event.modifiers().shift) {
4684                        let current_selection = project_panel.index_for_selection(selection);
4685                        let clicked_entry = SelectedEntry {
4686                            entry_id,
4687                            worktree_id,
4688                        };
4689                        let target_selection = project_panel.index_for_selection(clicked_entry);
4690                        if let Some(((_, _, source_index), (_, _, target_index))) =
4691                            current_selection.zip(target_selection)
4692                        {
4693                            let range_start = source_index.min(target_index);
4694                            let range_end = source_index.max(target_index) + 1;
4695                            let mut new_selections = Vec::new();
4696                            project_panel.for_each_visible_entry(
4697                                range_start..range_end,
4698                                window,
4699                                cx,
4700                                |entry_id, details, _, _| {
4701                                    new_selections.push(SelectedEntry {
4702                                        entry_id,
4703                                        worktree_id: details.worktree_id,
4704                                    });
4705                                },
4706                            );
4707
4708                            for selection in &new_selections {
4709                                if !project_panel.marked_entries.contains(selection) {
4710                                    project_panel.marked_entries.push(*selection);
4711                                }
4712                            }
4713
4714                            project_panel.state.selection = Some(clicked_entry);
4715                            if !project_panel.marked_entries.contains(&clicked_entry) {
4716                                project_panel.marked_entries.push(clicked_entry);
4717                            }
4718                        }
4719                    } else if event.modifiers().secondary() {
4720                        if event.click_count() > 1 {
4721                            project_panel.split_entry(entry_id, false, None, cx);
4722                        } else {
4723                            project_panel.state.selection = Some(selection);
4724                            if let Some(position) = project_panel.marked_entries.iter().position(|e| *e == selection) {
4725                                project_panel.marked_entries.remove(position);
4726                            } else {
4727                                project_panel.marked_entries.push(selection);
4728                            }
4729                        }
4730                    } else if kind.is_dir() {
4731                        project_panel.marked_entries.clear();
4732                        if is_sticky
4733                            && let Some((_, _, index)) = project_panel.index_for_entry(entry_id, worktree_id) {
4734                                project_panel.scroll_handle.scroll_to_item_strict_with_offset(index, ScrollStrategy::Top, sticky_index.unwrap_or(0));
4735                                cx.notify();
4736                                // move down by 1px so that clicked item
4737                                // don't count as sticky anymore
4738                                cx.on_next_frame(window, |_, window, cx| {
4739                                    cx.on_next_frame(window, |this, _, cx| {
4740                                        let mut offset = this.scroll_handle.offset();
4741                                        offset.y += px(1.);
4742                                        this.scroll_handle.set_offset(offset);
4743                                        cx.notify();
4744                                    });
4745                                });
4746                                return;
4747                            }
4748                        if event.modifiers().alt {
4749                            project_panel.toggle_expand_all(entry_id, window, cx);
4750                        } else {
4751                            project_panel.toggle_expanded(entry_id, window, cx);
4752                        }
4753                    } else {
4754                        let preview_tabs_enabled = PreviewTabsSettings::get_global(cx).enabled;
4755                        let click_count = event.click_count();
4756                        let focus_opened_item = !preview_tabs_enabled || click_count > 1;
4757                        let allow_preview = preview_tabs_enabled && click_count == 1;
4758                        project_panel.open_entry(entry_id, focus_opened_item, allow_preview, cx);
4759                    }
4760                }),
4761            )
4762            .child(
4763                ListItem::new(id)
4764                    .indent_level(depth)
4765                    .indent_step_size(px(settings.indent_size))
4766                    .spacing(match settings.entry_spacing {
4767                        ProjectPanelEntrySpacing::Comfortable => ListItemSpacing::Dense,
4768                        ProjectPanelEntrySpacing::Standard => {
4769                            ListItemSpacing::ExtraDense
4770                        }
4771                    })
4772                    .selectable(false)
4773                    .when_some(canonical_path, |this, path| {
4774                        this.end_slot::<AnyElement>(
4775                            div()
4776                                .id("symlink_icon")
4777                                .pr_3()
4778                                .tooltip(move |_window, cx| {
4779                                    Tooltip::with_meta(
4780                                        path.to_string(),
4781                                        None,
4782                                        "Symbolic Link",
4783                                        cx,
4784                                    )
4785                                })
4786                                .child(
4787                                    Icon::new(IconName::ArrowUpRight)
4788                                        .size(IconSize::Indicator)
4789                                        .color(filename_text_color),
4790                                )
4791                                .into_any_element(),
4792                        )
4793                    })
4794                    .child(if let Some(icon) = &icon {
4795                        if let Some((_, decoration_color)) =
4796                            entry_diagnostic_aware_icon_decoration_and_color(diagnostic_severity)
4797                        {
4798                            let is_warning = diagnostic_severity
4799                                .map(|severity| matches!(severity, DiagnosticSeverity::WARNING))
4800                                .unwrap_or(false);
4801                            div().child(
4802                                DecoratedIcon::new(
4803                                    Icon::from_path(icon.clone()).color(Color::Muted),
4804                                    Some(
4805                                        IconDecoration::new(
4806                                            if kind.is_file() {
4807                                                if is_warning {
4808                                                    IconDecorationKind::Triangle
4809                                                } else {
4810                                                    IconDecorationKind::X
4811                                                }
4812                                            } else {
4813                                                IconDecorationKind::Dot
4814                                            },
4815                                            bg_color,
4816                                            cx,
4817                                        )
4818                                        .group_name(Some(GROUP_NAME.into()))
4819                                        .knockout_hover_color(bg_hover_color)
4820                                        .color(decoration_color.color(cx))
4821                                        .position(Point {
4822                                            x: px(-2.),
4823                                            y: px(-2.),
4824                                        }),
4825                                    ),
4826                                )
4827                                .into_any_element(),
4828                            )
4829                        } else {
4830                            h_flex().child(Icon::from_path(icon.to_string()).color(Color::Muted))
4831                        }
4832                    } else if let Some((icon_name, color)) =
4833                        entry_diagnostic_aware_icon_name_and_color(diagnostic_severity)
4834                    {
4835                        h_flex()
4836                            .size(IconSize::default().rems())
4837                            .child(Icon::new(icon_name).color(color).size(IconSize::Small))
4838                    } else {
4839                        h_flex()
4840                            .size(IconSize::default().rems())
4841                            .invisible()
4842                            .flex_none()
4843                    })
4844                    .child(
4845                        if let (Some(editor), true) = (Some(&self.filename_editor), show_editor) {
4846                            h_flex().h_6().w_full().child(editor.clone())
4847                        } else {
4848                            h_flex().h_6().map(|mut this| {
4849                                if let Some(folded_ancestors) = self.state.ancestors.get(&entry_id) {
4850                                    let components = Path::new(&file_name)
4851                                        .components()
4852                                        .map(|comp| comp.as_os_str().to_string_lossy().into_owned())
4853                                        .collect::<Vec<_>>();
4854                                    let active_index = folded_ancestors.active_index();
4855                                    let components_len = components.len();
4856                                    let delimiter = SharedString::new(path_style.separator());
4857                                    for (index, component) in components.iter().enumerate() {
4858                                        if index != 0 {
4859                                                let delimiter_target_index = index - 1;
4860                                                let target_entry_id = folded_ancestors.ancestors.get(components_len - 1 - delimiter_target_index).cloned();
4861                                                this = this.child(
4862                                                    div()
4863                                                    .when(!is_sticky, |div| {
4864                                                        div
4865                                                            .when(settings.drag_and_drop, |div| div
4866                                                            .on_drop(cx.listener(move |this, selections: &DraggedSelection, window, cx| {
4867                                                            this.hover_scroll_task.take();
4868                                                            this.drag_target_entry = None;
4869                                                            this.folded_directory_drag_target = None;
4870                                                            if let Some(target_entry_id) = target_entry_id {
4871                                                                this.drag_onto(selections, target_entry_id, kind.is_file(), window, cx);
4872                                                            }
4873                                                        }))
4874                                                        .on_drag_move(cx.listener(
4875                                                            move |this, event: &DragMoveEvent<DraggedSelection>, _, _| {
4876                                                                if event.bounds.contains(&event.event.position) {
4877                                                                    this.folded_directory_drag_target = Some(
4878                                                                        FoldedDirectoryDragTarget {
4879                                                                            entry_id,
4880                                                                            index: delimiter_target_index,
4881                                                                            is_delimiter_target: true,
4882                                                                        }
4883                                                                    );
4884                                                                } else {
4885                                                                    let is_current_target = this.folded_directory_drag_target
4886                                                                        .is_some_and(|target|
4887                                                                            target.entry_id == entry_id &&
4888                                                                            target.index == delimiter_target_index &&
4889                                                                            target.is_delimiter_target
4890                                                                        );
4891                                                                    if is_current_target {
4892                                                                        this.folded_directory_drag_target = None;
4893                                                                    }
4894                                                                }
4895
4896                                                            },
4897                                                        )))
4898                                                    })
4899                                                    .child(
4900                                                        Label::new(delimiter.clone())
4901                                                            .single_line()
4902                                                            .color(filename_text_color)
4903                                                    )
4904                                                );
4905                                        }
4906                                        let id = SharedString::from(format!(
4907                                            "project_panel_path_component_{}_{index}",
4908                                            entry_id.to_usize()
4909                                        ));
4910                                        let label = div()
4911                                            .id(id)
4912                                            .when(!is_sticky,| div| {
4913                                                div
4914                                                .when(index != components_len - 1, |div|{
4915                                                    let target_entry_id = folded_ancestors.ancestors.get(components_len - 1 - index).cloned();
4916                                                    div
4917                                                    .when(settings.drag_and_drop, |div| div
4918                                                    .on_drag_move(cx.listener(
4919                                                        move |this, event: &DragMoveEvent<DraggedSelection>, _, _| {
4920                                                        if event.bounds.contains(&event.event.position) {
4921                                                                this.folded_directory_drag_target = Some(
4922                                                                    FoldedDirectoryDragTarget {
4923                                                                        entry_id,
4924                                                                        index,
4925                                                                        is_delimiter_target: false,
4926                                                                    }
4927                                                                );
4928                                                            } else {
4929                                                                let is_current_target = this.folded_directory_drag_target
4930                                                                    .as_ref()
4931                                                                    .is_some_and(|target|
4932                                                                        target.entry_id == entry_id &&
4933                                                                        target.index == index &&
4934                                                                        !target.is_delimiter_target
4935                                                                    );
4936                                                                if is_current_target {
4937                                                                    this.folded_directory_drag_target = None;
4938                                                                }
4939                                                            }
4940                                                        },
4941                                                    ))
4942                                                    .on_drop(cx.listener(move |this, selections: &DraggedSelection, window,cx| {
4943                                                        this.hover_scroll_task.take();
4944                                                        this.drag_target_entry = None;
4945                                                        this.folded_directory_drag_target = None;
4946                                                        if let Some(target_entry_id) = target_entry_id {
4947                                                            this.drag_onto(selections, target_entry_id, kind.is_file(), window, cx);
4948                                                        }
4949                                                    }))
4950                                                    .when(folded_directory_drag_target.is_some_and(|target|
4951                                                        target.entry_id == entry_id &&
4952                                                        target.index == index
4953                                                    ), |this| {
4954                                                        this.bg(item_colors.drag_over)
4955                                                    }))
4956                                                })
4957                                            })
4958                                            .on_mouse_down(
4959                                                MouseButton::Left,
4960                                                cx.listener(move |this, _, _, cx| {
4961                                                    if index != active_index
4962                                                        && let Some(folds) =
4963                                                            this.state.ancestors.get_mut(&entry_id)
4964                                                        {
4965                                                            folds.current_ancestor_depth =
4966                                                                components_len - 1 - index;
4967                                                            cx.notify();
4968                                                        }
4969                                                }),
4970                                            )
4971                                            .child(
4972                                                Label::new(component)
4973                                                    .single_line()
4974                                                    .color(filename_text_color)
4975                                                    .when(
4976                                                        index == active_index
4977                                                            && (is_active || is_marked),
4978                                                        |this| this.underline(),
4979                                                    ),
4980                                            );
4981
4982                                        this = this.child(label);
4983                                    }
4984
4985                                    this
4986                                } else {
4987                                    this.child(
4988                                        Label::new(file_name)
4989                                            .single_line()
4990                                            .color(filename_text_color),
4991                                    )
4992                                }
4993                            })
4994                        },
4995                    )
4996                    .on_secondary_mouse_down(cx.listener(
4997                        move |this, event: &MouseDownEvent, window, cx| {
4998                            // Stop propagation to prevent the catch-all context menu for the project
4999                            // panel from being deployed.
5000                            cx.stop_propagation();
5001                            // Some context menu actions apply to all marked entries. If the user
5002                            // right-clicks on an entry that is not marked, they may not realize the
5003                            // action applies to multiple entries. To avoid inadvertent changes, all
5004                            // entries are unmarked.
5005                            if !this.marked_entries.contains(&selection) {
5006                                this.marked_entries.clear();
5007                            }
5008                            this.deploy_context_menu(event.position, entry_id, window, cx);
5009                        },
5010                    ))
5011                    .overflow_x(),
5012            )
5013            .when_some(
5014                validation_color_and_message,
5015                |this, (color, message)| {
5016                    this
5017                    .relative()
5018                    .child(
5019                        deferred(
5020                            div()
5021                            .occlude()
5022                            .absolute()
5023                            .top_full()
5024                            .left(px(-1.)) // Used px over rem so that it doesn't change with font size
5025                            .right(px(-0.5))
5026                            .py_1()
5027                            .px_2()
5028                            .border_1()
5029                            .border_color(color)
5030                            .bg(cx.theme().colors().background)
5031                            .child(
5032                                Label::new(message)
5033                                .color(Color::from(color))
5034                                .size(LabelSize::Small)
5035                            )
5036                        )
5037                    )
5038                }
5039            )
5040    }
5041
5042    fn details_for_entry(
5043        &self,
5044        entry: &Entry,
5045        worktree_id: WorktreeId,
5046        root_name: &RelPath,
5047        entries_paths: &HashSet<Arc<RelPath>>,
5048        git_status: GitSummary,
5049        sticky: Option<StickyDetails>,
5050        _window: &mut Window,
5051        cx: &mut Context<Self>,
5052    ) -> EntryDetails {
5053        let (show_file_icons, show_folder_icons) = {
5054            let settings = ProjectPanelSettings::get_global(cx);
5055            (settings.file_icons, settings.folder_icons)
5056        };
5057
5058        let expanded_entry_ids = self
5059            .state
5060            .expanded_dir_ids
5061            .get(&worktree_id)
5062            .map(Vec::as_slice)
5063            .unwrap_or(&[]);
5064        let is_expanded = expanded_entry_ids.binary_search(&entry.id).is_ok();
5065
5066        let icon = match entry.kind {
5067            EntryKind::File => {
5068                if show_file_icons {
5069                    FileIcons::get_icon(entry.path.as_std_path(), cx)
5070                } else {
5071                    None
5072                }
5073            }
5074            _ => {
5075                if show_folder_icons {
5076                    FileIcons::get_folder_icon(is_expanded, entry.path.as_std_path(), cx)
5077                } else {
5078                    FileIcons::get_chevron_icon(is_expanded, cx)
5079                }
5080            }
5081        };
5082
5083        let path_style = self.project.read(cx).path_style(cx);
5084        let (depth, difference) =
5085            ProjectPanel::calculate_depth_and_difference(entry, entries_paths);
5086
5087        let filename = if difference > 1 {
5088            entry
5089                .path
5090                .last_n_components(difference)
5091                .map_or(String::new(), |suffix| {
5092                    suffix.display(path_style).to_string()
5093                })
5094        } else {
5095            entry
5096                .path
5097                .file_name()
5098                .map(|name| name.to_string())
5099                .unwrap_or_else(|| root_name.as_unix_str().to_string())
5100        };
5101
5102        let selection = SelectedEntry {
5103            worktree_id,
5104            entry_id: entry.id,
5105        };
5106        let is_marked = self.marked_entries.contains(&selection);
5107        let is_selected = self.state.selection == Some(selection);
5108
5109        let diagnostic_severity = self
5110            .diagnostics
5111            .get(&(worktree_id, entry.path.clone()))
5112            .cloned();
5113
5114        let filename_text_color =
5115            entry_git_aware_label_color(git_status, entry.is_ignored, is_marked);
5116
5117        let is_cut = self
5118            .clipboard
5119            .as_ref()
5120            .is_some_and(|e| e.is_cut() && e.items().contains(&selection));
5121
5122        EntryDetails {
5123            filename,
5124            icon,
5125            path: entry.path.clone(),
5126            depth,
5127            kind: entry.kind,
5128            is_ignored: entry.is_ignored,
5129            is_expanded,
5130            is_selected,
5131            is_marked,
5132            is_editing: false,
5133            is_processing: false,
5134            is_cut,
5135            sticky,
5136            filename_text_color,
5137            diagnostic_severity,
5138            git_status,
5139            is_private: entry.is_private,
5140            worktree_id,
5141            canonical_path: entry.canonical_path.clone(),
5142        }
5143    }
5144
5145    fn dispatch_context(&self, window: &Window, cx: &Context<Self>) -> KeyContext {
5146        let mut dispatch_context = KeyContext::new_with_defaults();
5147        dispatch_context.add("ProjectPanel");
5148        dispatch_context.add("menu");
5149
5150        let identifier = if self.filename_editor.focus_handle(cx).is_focused(window) {
5151            "editing"
5152        } else {
5153            "not_editing"
5154        };
5155
5156        dispatch_context.add(identifier);
5157        dispatch_context
5158    }
5159
5160    fn reveal_entry(
5161        &mut self,
5162        project: Entity<Project>,
5163        entry_id: ProjectEntryId,
5164        skip_ignored: bool,
5165        window: &mut Window,
5166        cx: &mut Context<Self>,
5167    ) -> Result<()> {
5168        let worktree = project
5169            .read(cx)
5170            .worktree_for_entry(entry_id, cx)
5171            .context("can't reveal a non-existent entry in the project panel")?;
5172        let worktree = worktree.read(cx);
5173        if skip_ignored
5174            && worktree
5175                .entry_for_id(entry_id)
5176                .is_none_or(|entry| entry.is_ignored && !entry.is_always_included)
5177        {
5178            anyhow::bail!("can't reveal an ignored entry in the project panel");
5179        }
5180        let is_active_item_file_diff_view = self
5181            .workspace
5182            .upgrade()
5183            .and_then(|ws| ws.read(cx).active_item(cx))
5184            .map(|item| item.act_as_type(TypeId::of::<FileDiffView>(), cx).is_some())
5185            .unwrap_or(false);
5186        if is_active_item_file_diff_view {
5187            return Ok(());
5188        }
5189
5190        let worktree_id = worktree.id();
5191        self.expand_entry(worktree_id, entry_id, cx);
5192        self.update_visible_entries(Some((worktree_id, entry_id)), false, true, window, cx);
5193        self.marked_entries.clear();
5194        self.marked_entries.push(SelectedEntry {
5195            worktree_id,
5196            entry_id,
5197        });
5198        cx.notify();
5199        Ok(())
5200    }
5201
5202    fn find_active_indent_guide(
5203        &self,
5204        indent_guides: &[IndentGuideLayout],
5205        cx: &App,
5206    ) -> Option<usize> {
5207        let (worktree, entry) = self.selected_entry(cx)?;
5208
5209        // Find the parent entry of the indent guide, this will either be the
5210        // expanded folder we have selected, or the parent of the currently
5211        // selected file/collapsed directory
5212        let mut entry = entry;
5213        loop {
5214            let is_expanded_dir = entry.is_dir()
5215                && self
5216                    .state
5217                    .expanded_dir_ids
5218                    .get(&worktree.id())
5219                    .map(|ids| ids.binary_search(&entry.id).is_ok())
5220                    .unwrap_or(false);
5221            if is_expanded_dir {
5222                break;
5223            }
5224            entry = worktree.entry_for_path(&entry.path.parent()?)?;
5225        }
5226
5227        let (active_indent_range, depth) = {
5228            let (worktree_ix, child_offset, ix) = self.index_for_entry(entry.id, worktree.id())?;
5229            let child_paths = &self.state.visible_entries[worktree_ix].entries;
5230            let mut child_count = 0;
5231            let depth = entry.path.ancestors().count();
5232            while let Some(entry) = child_paths.get(child_offset + child_count + 1) {
5233                if entry.path.ancestors().count() <= depth {
5234                    break;
5235                }
5236                child_count += 1;
5237            }
5238
5239            let start = ix + 1;
5240            let end = start + child_count;
5241
5242            let visible_worktree = &self.state.visible_entries[worktree_ix];
5243            let visible_worktree_entries = visible_worktree.index.get_or_init(|| {
5244                visible_worktree
5245                    .entries
5246                    .iter()
5247                    .map(|e| e.path.clone())
5248                    .collect()
5249            });
5250
5251            // Calculate the actual depth of the entry, taking into account that directories can be auto-folded.
5252            let (depth, _) = Self::calculate_depth_and_difference(entry, visible_worktree_entries);
5253            (start..end, depth)
5254        };
5255
5256        let candidates = indent_guides
5257            .iter()
5258            .enumerate()
5259            .filter(|(_, indent_guide)| indent_guide.offset.x == depth);
5260
5261        for (i, indent) in candidates {
5262            // Find matches that are either an exact match, partially on screen, or inside the enclosing indent
5263            if active_indent_range.start <= indent.offset.y + indent.length
5264                && indent.offset.y <= active_indent_range.end
5265            {
5266                return Some(i);
5267            }
5268        }
5269        None
5270    }
5271
5272    fn render_sticky_entries(
5273        &self,
5274        child: StickyProjectPanelCandidate,
5275        window: &mut Window,
5276        cx: &mut Context<Self>,
5277    ) -> SmallVec<[AnyElement; 8]> {
5278        let project = self.project.read(cx);
5279
5280        let Some((worktree_id, entry_ref)) = self.entry_at_index(child.index) else {
5281            return SmallVec::new();
5282        };
5283
5284        let Some(visible) = self
5285            .state
5286            .visible_entries
5287            .iter()
5288            .find(|worktree| worktree.worktree_id == worktree_id)
5289        else {
5290            return SmallVec::new();
5291        };
5292
5293        let Some(worktree) = project.worktree_for_id(worktree_id, cx) else {
5294            return SmallVec::new();
5295        };
5296        let worktree = worktree.read(cx).snapshot();
5297
5298        let paths = visible
5299            .index
5300            .get_or_init(|| visible.entries.iter().map(|e| e.path.clone()).collect());
5301
5302        let mut sticky_parents = Vec::new();
5303        let mut current_path = entry_ref.path.clone();
5304
5305        'outer: loop {
5306            if let Some(parent_path) = current_path.parent() {
5307                for ancestor_path in parent_path.ancestors() {
5308                    if paths.contains(ancestor_path)
5309                        && let Some(parent_entry) = worktree.entry_for_path(ancestor_path)
5310                    {
5311                        sticky_parents.push(parent_entry.clone());
5312                        current_path = parent_entry.path.clone();
5313                        continue 'outer;
5314                    }
5315                }
5316            }
5317            break 'outer;
5318        }
5319
5320        if sticky_parents.is_empty() {
5321            return SmallVec::new();
5322        }
5323
5324        sticky_parents.reverse();
5325
5326        let panel_settings = ProjectPanelSettings::get_global(cx);
5327        let git_status_enabled = panel_settings.git_status;
5328        let root_name = worktree.root_name();
5329
5330        let git_summaries_by_id = if git_status_enabled {
5331            visible
5332                .entries
5333                .iter()
5334                .map(|e| (e.id, e.git_summary))
5335                .collect::<HashMap<_, _>>()
5336        } else {
5337            Default::default()
5338        };
5339
5340        // already checked if non empty above
5341        let last_item_index = sticky_parents.len() - 1;
5342        sticky_parents
5343            .iter()
5344            .enumerate()
5345            .map(|(index, entry)| {
5346                let git_status = git_summaries_by_id
5347                    .get(&entry.id)
5348                    .copied()
5349                    .unwrap_or_default();
5350                let sticky_details = Some(StickyDetails {
5351                    sticky_index: index,
5352                });
5353                let details = self.details_for_entry(
5354                    entry,
5355                    worktree_id,
5356                    root_name,
5357                    paths,
5358                    git_status,
5359                    sticky_details,
5360                    window,
5361                    cx,
5362                );
5363                self.render_entry(entry.id, details, window, cx)
5364                    .when(index == last_item_index, |this| {
5365                        let shadow_color_top = hsla(0.0, 0.0, 0.0, 0.1);
5366                        let shadow_color_bottom = hsla(0.0, 0.0, 0.0, 0.);
5367                        let sticky_shadow = div()
5368                            .absolute()
5369                            .left_0()
5370                            .bottom_neg_1p5()
5371                            .h_1p5()
5372                            .w_full()
5373                            .bg(linear_gradient(
5374                                0.,
5375                                linear_color_stop(shadow_color_top, 1.),
5376                                linear_color_stop(shadow_color_bottom, 0.),
5377                            ));
5378                        this.child(sticky_shadow)
5379                    })
5380                    .into_any()
5381            })
5382            .collect()
5383    }
5384}
5385
5386#[derive(Clone)]
5387struct StickyProjectPanelCandidate {
5388    index: usize,
5389    depth: usize,
5390}
5391
5392impl StickyCandidate for StickyProjectPanelCandidate {
5393    fn depth(&self) -> usize {
5394        self.depth
5395    }
5396}
5397
5398fn item_width_estimate(depth: usize, item_text_chars: usize, is_symlink: bool) -> usize {
5399    const ICON_SIZE_FACTOR: usize = 2;
5400    let mut item_width = depth * ICON_SIZE_FACTOR + item_text_chars;
5401    if is_symlink {
5402        item_width += ICON_SIZE_FACTOR;
5403    }
5404    item_width
5405}
5406
5407impl Render for ProjectPanel {
5408    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
5409        let has_worktree = !self.state.visible_entries.is_empty();
5410        let project = self.project.read(cx);
5411        let panel_settings = ProjectPanelSettings::get_global(cx);
5412        let indent_size = panel_settings.indent_size;
5413        let show_indent_guides = panel_settings.indent_guides.show == ShowIndentGuides::Always;
5414        let show_sticky_entries = {
5415            if panel_settings.sticky_scroll {
5416                let is_scrollable = self.scroll_handle.is_scrollable();
5417                let is_scrolled = self.scroll_handle.offset().y < px(0.);
5418                is_scrollable && is_scrolled
5419            } else {
5420                false
5421            }
5422        };
5423
5424        let is_local = project.is_local();
5425
5426        if has_worktree {
5427            let item_count = self
5428                .state
5429                .visible_entries
5430                .iter()
5431                .map(|worktree| worktree.entries.len())
5432                .sum();
5433
5434            fn handle_drag_move<T: 'static>(
5435                this: &mut ProjectPanel,
5436                e: &DragMoveEvent<T>,
5437                window: &mut Window,
5438                cx: &mut Context<ProjectPanel>,
5439            ) {
5440                if let Some(previous_position) = this.previous_drag_position {
5441                    // Refresh cursor only when an actual drag happens,
5442                    // because modifiers are not updated when the cursor is not moved.
5443                    if e.event.position != previous_position {
5444                        this.refresh_drag_cursor_style(&e.event.modifiers, window, cx);
5445                    }
5446                }
5447                this.previous_drag_position = Some(e.event.position);
5448
5449                if !e.bounds.contains(&e.event.position) {
5450                    this.drag_target_entry = None;
5451                    return;
5452                }
5453                this.hover_scroll_task.take();
5454                let panel_height = e.bounds.size.height;
5455                if panel_height <= px(0.) {
5456                    return;
5457                }
5458
5459                let event_offset = e.event.position.y - e.bounds.origin.y;
5460                // How far along in the project panel is our cursor? (0. is the top of a list, 1. is the bottom)
5461                let hovered_region_offset = event_offset / panel_height;
5462
5463                // We want the scrolling to be a bit faster when the cursor is closer to the edge of a list.
5464                // These pixels offsets were picked arbitrarily.
5465                let vertical_scroll_offset = if hovered_region_offset <= 0.05 {
5466                    8.
5467                } else if hovered_region_offset <= 0.15 {
5468                    5.
5469                } else if hovered_region_offset >= 0.95 {
5470                    -8.
5471                } else if hovered_region_offset >= 0.85 {
5472                    -5.
5473                } else {
5474                    return;
5475                };
5476                let adjustment = point(px(0.), px(vertical_scroll_offset));
5477                this.hover_scroll_task = Some(cx.spawn_in(window, async move |this, cx| {
5478                    loop {
5479                        let should_stop_scrolling = this
5480                            .update(cx, |this, cx| {
5481                                this.hover_scroll_task.as_ref()?;
5482                                let handle = this.scroll_handle.0.borrow_mut();
5483                                let offset = handle.base_handle.offset();
5484
5485                                handle.base_handle.set_offset(offset + adjustment);
5486                                cx.notify();
5487                                Some(())
5488                            })
5489                            .ok()
5490                            .flatten()
5491                            .is_some();
5492                        if should_stop_scrolling {
5493                            return;
5494                        }
5495                        cx.background_executor()
5496                            .timer(Duration::from_millis(16))
5497                            .await;
5498                    }
5499                }));
5500            }
5501            h_flex()
5502                .id("project-panel")
5503                .group("project-panel")
5504                .when(panel_settings.drag_and_drop, |this| {
5505                    this.on_drag_move(cx.listener(handle_drag_move::<ExternalPaths>))
5506                        .on_drag_move(cx.listener(handle_drag_move::<DraggedSelection>))
5507                })
5508                .size_full()
5509                .relative()
5510                .on_modifiers_changed(cx.listener(
5511                    |this, event: &ModifiersChangedEvent, window, cx| {
5512                        this.refresh_drag_cursor_style(&event.modifiers, window, cx);
5513                    },
5514                ))
5515                .key_context(self.dispatch_context(window, cx))
5516                .on_action(cx.listener(Self::scroll_up))
5517                .on_action(cx.listener(Self::scroll_down))
5518                .on_action(cx.listener(Self::scroll_cursor_center))
5519                .on_action(cx.listener(Self::scroll_cursor_top))
5520                .on_action(cx.listener(Self::scroll_cursor_bottom))
5521                .on_action(cx.listener(Self::select_next))
5522                .on_action(cx.listener(Self::select_previous))
5523                .on_action(cx.listener(Self::select_first))
5524                .on_action(cx.listener(Self::select_last))
5525                .on_action(cx.listener(Self::select_parent))
5526                .on_action(cx.listener(Self::select_next_git_entry))
5527                .on_action(cx.listener(Self::select_prev_git_entry))
5528                .on_action(cx.listener(Self::select_next_diagnostic))
5529                .on_action(cx.listener(Self::select_prev_diagnostic))
5530                .on_action(cx.listener(Self::select_next_directory))
5531                .on_action(cx.listener(Self::select_prev_directory))
5532                .on_action(cx.listener(Self::expand_selected_entry))
5533                .on_action(cx.listener(Self::collapse_selected_entry))
5534                .on_action(cx.listener(Self::collapse_all_entries))
5535                .on_action(cx.listener(Self::open))
5536                .on_action(cx.listener(Self::open_permanent))
5537                .on_action(cx.listener(Self::open_split_vertical))
5538                .on_action(cx.listener(Self::open_split_horizontal))
5539                .on_action(cx.listener(Self::confirm))
5540                .on_action(cx.listener(Self::cancel))
5541                .on_action(cx.listener(Self::copy_path))
5542                .on_action(cx.listener(Self::copy_relative_path))
5543                .on_action(cx.listener(Self::new_search_in_directory))
5544                .on_action(cx.listener(Self::unfold_directory))
5545                .on_action(cx.listener(Self::fold_directory))
5546                .on_action(cx.listener(Self::remove_from_project))
5547                .on_action(cx.listener(Self::compare_marked_files))
5548                .when(!project.is_read_only(cx), |el| {
5549                    el.on_action(cx.listener(Self::new_file))
5550                        .on_action(cx.listener(Self::new_directory))
5551                        .on_action(cx.listener(Self::rename))
5552                        .on_action(cx.listener(Self::delete))
5553                        .on_action(cx.listener(Self::cut))
5554                        .on_action(cx.listener(Self::copy))
5555                        .on_action(cx.listener(Self::paste))
5556                        .on_action(cx.listener(Self::duplicate))
5557                        .when(!project.is_remote(), |el| {
5558                            el.on_action(cx.listener(Self::trash))
5559                        })
5560                })
5561                .when(project.is_local(), |el| {
5562                    el.on_action(cx.listener(Self::reveal_in_finder))
5563                        .on_action(cx.listener(Self::open_system))
5564                        .on_action(cx.listener(Self::open_in_terminal))
5565                })
5566                .when(project.is_via_remote_server(), |el| {
5567                    el.on_action(cx.listener(Self::open_in_terminal))
5568                })
5569                .track_focus(&self.focus_handle(cx))
5570                .child(
5571                    v_flex()
5572                        .child(
5573                            uniform_list("entries", item_count, {
5574                                cx.processor(|this, range: Range<usize>, window, cx| {
5575                                    this.rendered_entries_len = range.end - range.start;
5576                                    let mut items = Vec::with_capacity(this.rendered_entries_len);
5577                                    this.for_each_visible_entry(
5578                                        range,
5579                                        window,
5580                                        cx,
5581                                        |id, details, window, cx| {
5582                                            items.push(this.render_entry(id, details, window, cx));
5583                                        },
5584                                    );
5585                                    items
5586                                })
5587                            })
5588                            .when(show_indent_guides, |list| {
5589                                list.with_decoration(
5590                                    ui::indent_guides(
5591                                        px(indent_size),
5592                                        IndentGuideColors::panel(cx),
5593                                    )
5594                                    .with_compute_indents_fn(
5595                                        cx.entity(),
5596                                        |this, range, window, cx| {
5597                                            let mut items =
5598                                                SmallVec::with_capacity(range.end - range.start);
5599                                            this.iter_visible_entries(
5600                                                range,
5601                                                window,
5602                                                cx,
5603                                                |entry, _, entries, _, _| {
5604                                                    let (depth, _) =
5605                                                        Self::calculate_depth_and_difference(
5606                                                            entry, entries,
5607                                                        );
5608                                                    items.push(depth);
5609                                                },
5610                                            );
5611                                            items
5612                                        },
5613                                    )
5614                                    .on_click(cx.listener(
5615                                        |this,
5616                                         active_indent_guide: &IndentGuideLayout,
5617                                         window,
5618                                         cx| {
5619                                            if window.modifiers().secondary() {
5620                                                let ix = active_indent_guide.offset.y;
5621                                                let Some((target_entry, worktree)) = maybe!({
5622                                                    let (worktree_id, entry) =
5623                                                        this.entry_at_index(ix)?;
5624                                                    let worktree = this
5625                                                        .project
5626                                                        .read(cx)
5627                                                        .worktree_for_id(worktree_id, cx)?;
5628                                                    let target_entry = worktree
5629                                                        .read(cx)
5630                                                        .entry_for_path(&entry.path.parent()?)?;
5631                                                    Some((target_entry, worktree))
5632                                                }) else {
5633                                                    return;
5634                                                };
5635
5636                                                this.collapse_entry(
5637                                                    target_entry.clone(),
5638                                                    worktree,
5639                                                    window,
5640                                                    cx,
5641                                                );
5642                                            }
5643                                        },
5644                                    ))
5645                                    .with_render_fn(
5646                                        cx.entity(),
5647                                        move |this, params, _, cx| {
5648                                            const LEFT_OFFSET: Pixels = px(14.);
5649                                            const PADDING_Y: Pixels = px(4.);
5650                                            const HITBOX_OVERDRAW: Pixels = px(3.);
5651
5652                                            let active_indent_guide_index = this
5653                                                .find_active_indent_guide(
5654                                                    &params.indent_guides,
5655                                                    cx,
5656                                                );
5657
5658                                            let indent_size = params.indent_size;
5659                                            let item_height = params.item_height;
5660
5661                                            params
5662                                                .indent_guides
5663                                                .into_iter()
5664                                                .enumerate()
5665                                                .map(|(idx, layout)| {
5666                                                    let offset = if layout.continues_offscreen {
5667                                                        px(0.)
5668                                                    } else {
5669                                                        PADDING_Y
5670                                                    };
5671                                                    let bounds = Bounds::new(
5672                                                        point(
5673                                                            layout.offset.x * indent_size
5674                                                                + LEFT_OFFSET,
5675                                                            layout.offset.y * item_height + offset,
5676                                                        ),
5677                                                        size(
5678                                                            px(1.),
5679                                                            layout.length * item_height
5680                                                                - offset * 2.,
5681                                                        ),
5682                                                    );
5683                                                    ui::RenderedIndentGuide {
5684                                                        bounds,
5685                                                        layout,
5686                                                        is_active: Some(idx)
5687                                                            == active_indent_guide_index,
5688                                                        hitbox: Some(Bounds::new(
5689                                                            point(
5690                                                                bounds.origin.x - HITBOX_OVERDRAW,
5691                                                                bounds.origin.y,
5692                                                            ),
5693                                                            size(
5694                                                                bounds.size.width
5695                                                                    + HITBOX_OVERDRAW * 2.,
5696                                                                bounds.size.height,
5697                                                            ),
5698                                                        )),
5699                                                    }
5700                                                })
5701                                                .collect()
5702                                        },
5703                                    ),
5704                                )
5705                            })
5706                            .when(show_sticky_entries, |list| {
5707                                let sticky_items = ui::sticky_items(
5708                                    cx.entity(),
5709                                    |this, range, window, cx| {
5710                                        let mut items =
5711                                            SmallVec::with_capacity(range.end - range.start);
5712                                        this.iter_visible_entries(
5713                                            range,
5714                                            window,
5715                                            cx,
5716                                            |entry, index, entries, _, _| {
5717                                                let (depth, _) =
5718                                                    Self::calculate_depth_and_difference(
5719                                                        entry, entries,
5720                                                    );
5721                                                let candidate =
5722                                                    StickyProjectPanelCandidate { index, depth };
5723                                                items.push(candidate);
5724                                            },
5725                                        );
5726                                        items
5727                                    },
5728                                    |this, marker_entry, window, cx| {
5729                                        let sticky_entries =
5730                                            this.render_sticky_entries(marker_entry, window, cx);
5731                                        this.sticky_items_count = sticky_entries.len();
5732                                        sticky_entries
5733                                    },
5734                                );
5735                                list.with_decoration(if show_indent_guides {
5736                                    sticky_items.with_decoration(
5737                                        ui::indent_guides(
5738                                            px(indent_size),
5739                                            IndentGuideColors::panel(cx),
5740                                        )
5741                                        .with_render_fn(
5742                                            cx.entity(),
5743                                            move |_, params, _, _| {
5744                                                const LEFT_OFFSET: Pixels = px(14.);
5745
5746                                                let indent_size = params.indent_size;
5747                                                let item_height = params.item_height;
5748
5749                                                params
5750                                                    .indent_guides
5751                                                    .into_iter()
5752                                                    .map(|layout| {
5753                                                        let bounds = Bounds::new(
5754                                                            point(
5755                                                                layout.offset.x * indent_size
5756                                                                    + LEFT_OFFSET,
5757                                                                layout.offset.y * item_height,
5758                                                            ),
5759                                                            size(
5760                                                                px(1.),
5761                                                                layout.length * item_height,
5762                                                            ),
5763                                                        );
5764                                                        ui::RenderedIndentGuide {
5765                                                            bounds,
5766                                                            layout,
5767                                                            is_active: false,
5768                                                            hitbox: None,
5769                                                        }
5770                                                    })
5771                                                    .collect()
5772                                            },
5773                                        ),
5774                                    )
5775                                } else {
5776                                    sticky_items
5777                                })
5778                            })
5779                            .with_sizing_behavior(ListSizingBehavior::Infer)
5780                            .with_horizontal_sizing_behavior(
5781                                ListHorizontalSizingBehavior::Unconstrained,
5782                            )
5783                            .with_width_from_item(self.state.max_width_item_index)
5784                            .track_scroll(self.scroll_handle.clone()),
5785                        )
5786                        .child(
5787                            div()
5788                                .id("project-panel-blank-area")
5789                                .block_mouse_except_scroll()
5790                                .flex_grow()
5791                                .when(
5792                                    self.drag_target_entry.as_ref().is_some_and(
5793                                        |entry| match entry {
5794                                            DragTarget::Background => true,
5795                                            DragTarget::Entry {
5796                                                highlight_entry_id, ..
5797                                            } => self.state.last_worktree_root_id.is_some_and(
5798                                                |root_id| *highlight_entry_id == root_id,
5799                                            ),
5800                                        },
5801                                    ),
5802                                    |div| div.bg(cx.theme().colors().drop_target_background),
5803                                )
5804                                .on_drag_move::<ExternalPaths>(cx.listener(
5805                                    move |this, event: &DragMoveEvent<ExternalPaths>, _, _| {
5806                                        let Some(_last_root_id) = this.state.last_worktree_root_id
5807                                        else {
5808                                            return;
5809                                        };
5810                                        if event.bounds.contains(&event.event.position) {
5811                                            this.drag_target_entry = Some(DragTarget::Background);
5812                                        } else {
5813                                            if this.drag_target_entry.as_ref().is_some_and(|e| {
5814                                                matches!(e, DragTarget::Background)
5815                                            }) {
5816                                                this.drag_target_entry = None;
5817                                            }
5818                                        }
5819                                    },
5820                                ))
5821                                .on_drag_move::<DraggedSelection>(cx.listener(
5822                                    move |this, event: &DragMoveEvent<DraggedSelection>, _, cx| {
5823                                        let Some(last_root_id) = this.state.last_worktree_root_id
5824                                        else {
5825                                            return;
5826                                        };
5827                                        if event.bounds.contains(&event.event.position) {
5828                                            let drag_state = event.drag(cx);
5829                                            if this.should_highlight_background_for_selection_drag(
5830                                                &drag_state,
5831                                                last_root_id,
5832                                                cx,
5833                                            ) {
5834                                                this.drag_target_entry =
5835                                                    Some(DragTarget::Background);
5836                                            }
5837                                        } else {
5838                                            if this.drag_target_entry.as_ref().is_some_and(|e| {
5839                                                matches!(e, DragTarget::Background)
5840                                            }) {
5841                                                this.drag_target_entry = None;
5842                                            }
5843                                        }
5844                                    },
5845                                ))
5846                                .on_drop(cx.listener(
5847                                    move |this, external_paths: &ExternalPaths, window, cx| {
5848                                        this.drag_target_entry = None;
5849                                        this.hover_scroll_task.take();
5850                                        if let Some(entry_id) = this.state.last_worktree_root_id {
5851                                            this.drop_external_files(
5852                                                external_paths.paths(),
5853                                                entry_id,
5854                                                window,
5855                                                cx,
5856                                            );
5857                                        }
5858                                        cx.stop_propagation();
5859                                    },
5860                                ))
5861                                .on_drop(cx.listener(
5862                                    move |this, selections: &DraggedSelection, window, cx| {
5863                                        this.drag_target_entry = None;
5864                                        this.hover_scroll_task.take();
5865                                        if let Some(entry_id) = this.state.last_worktree_root_id {
5866                                            this.drag_onto(selections, entry_id, false, window, cx);
5867                                        }
5868                                        cx.stop_propagation();
5869                                    },
5870                                ))
5871                                .on_click(cx.listener(|this, event, window, cx| {
5872                                    if matches!(event, gpui::ClickEvent::Keyboard(_)) {
5873                                        return;
5874                                    }
5875                                    cx.stop_propagation();
5876                                    this.state.selection = None;
5877                                    this.marked_entries.clear();
5878                                    this.focus_handle(cx).focus(window);
5879                                }))
5880                                .on_mouse_down(
5881                                    MouseButton::Right,
5882                                    cx.listener(move |this, event: &MouseDownEvent, window, cx| {
5883                                        // When deploying the context menu anywhere below the last project entry,
5884                                        // act as if the user clicked the root of the last worktree.
5885                                        if let Some(entry_id) = this.state.last_worktree_root_id {
5886                                            this.deploy_context_menu(
5887                                                event.position,
5888                                                entry_id,
5889                                                window,
5890                                                cx,
5891                                            );
5892                                        }
5893                                    }),
5894                                )
5895                                .when(!project.is_read_only(cx), |el| {
5896                                    el.on_click(cx.listener(
5897                                        |this, event: &gpui::ClickEvent, window, cx| {
5898                                            if event.click_count() > 1
5899                                                && let Some(entry_id) =
5900                                                    this.state.last_worktree_root_id
5901                                            {
5902                                                let project = this.project.read(cx);
5903
5904                                                let worktree_id = if let Some(worktree) =
5905                                                    project.worktree_for_entry(entry_id, cx)
5906                                                {
5907                                                    worktree.read(cx).id()
5908                                                } else {
5909                                                    return;
5910                                                };
5911
5912                                                this.state.selection = Some(SelectedEntry {
5913                                                    worktree_id,
5914                                                    entry_id,
5915                                                });
5916
5917                                                this.new_file(&NewFile, window, cx);
5918                                            }
5919                                        },
5920                                    ))
5921                                }),
5922                        )
5923                        .size_full(),
5924                )
5925                .custom_scrollbars(
5926                    Scrollbars::for_settings::<ProjectPanelSettings>()
5927                        .tracked_scroll_handle(self.scroll_handle.clone())
5928                        .with_track_along(
5929                            ScrollAxes::Horizontal,
5930                            cx.theme().colors().panel_background,
5931                        )
5932                        .notify_content(),
5933                    window,
5934                    cx,
5935                )
5936                .children(self.context_menu.as_ref().map(|(menu, position, _)| {
5937                    deferred(
5938                        anchored()
5939                            .position(*position)
5940                            .anchor(gpui::Corner::TopLeft)
5941                            .child(menu.clone()),
5942                    )
5943                    .with_priority(3)
5944                }))
5945        } else {
5946            let focus_handle = self.focus_handle(cx);
5947
5948            v_flex()
5949                .id("empty-project_panel")
5950                .p_4()
5951                .size_full()
5952                .items_center()
5953                .justify_center()
5954                .gap_1()
5955                .track_focus(&self.focus_handle(cx))
5956                .child(
5957                    Button::new("open_project", "Open Project")
5958                        .full_width()
5959                        .key_binding(KeyBinding::for_action_in(
5960                            &workspace::Open,
5961                            &focus_handle,
5962                            cx,
5963                        ))
5964                        .on_click(cx.listener(|this, _, window, cx| {
5965                            this.workspace
5966                                .update(cx, |_, cx| {
5967                                    window.dispatch_action(workspace::Open.boxed_clone(), cx);
5968                                })
5969                                .log_err();
5970                        })),
5971                )
5972                .child(
5973                    h_flex()
5974                        .w_1_2()
5975                        .gap_2()
5976                        .child(Divider::horizontal())
5977                        .child(Label::new("or").size(LabelSize::XSmall).color(Color::Muted))
5978                        .child(Divider::horizontal()),
5979                )
5980                .child(
5981                    Button::new("clone_repo", "Clone Repository")
5982                        .full_width()
5983                        .on_click(cx.listener(|this, _, window, cx| {
5984                            this.workspace
5985                                .update(cx, |_, cx| {
5986                                    window.dispatch_action(git::Clone.boxed_clone(), cx);
5987                                })
5988                                .log_err();
5989                        })),
5990                )
5991                .when(is_local, |div| {
5992                    div.when(panel_settings.drag_and_drop, |div| {
5993                        div.drag_over::<ExternalPaths>(|style, _, _, cx| {
5994                            style.bg(cx.theme().colors().drop_target_background)
5995                        })
5996                        .on_drop(cx.listener(
5997                            move |this, external_paths: &ExternalPaths, window, cx| {
5998                                this.drag_target_entry = None;
5999                                this.hover_scroll_task.take();
6000                                if let Some(task) = this
6001                                    .workspace
6002                                    .update(cx, |workspace, cx| {
6003                                        workspace.open_workspace_for_paths(
6004                                            true,
6005                                            external_paths.paths().to_owned(),
6006                                            window,
6007                                            cx,
6008                                        )
6009                                    })
6010                                    .log_err()
6011                                {
6012                                    task.detach_and_log_err(cx);
6013                                }
6014                                cx.stop_propagation();
6015                            },
6016                        ))
6017                    })
6018                })
6019        }
6020    }
6021}
6022
6023impl Render for DraggedProjectEntryView {
6024    fn render(&mut self, _: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
6025        let ui_font = ThemeSettings::get_global(cx).ui_font.clone();
6026        h_flex()
6027            .font(ui_font)
6028            .pl(self.click_offset.x + px(12.))
6029            .pt(self.click_offset.y + px(12.))
6030            .child(
6031                div()
6032                    .flex()
6033                    .gap_1()
6034                    .items_center()
6035                    .py_1()
6036                    .px_2()
6037                    .rounded_lg()
6038                    .bg(cx.theme().colors().background)
6039                    .map(|this| {
6040                        if self.selections.len() > 1 && self.selections.contains(&self.selection) {
6041                            this.child(Label::new(format!("{} entries", self.selections.len())))
6042                        } else {
6043                            this.child(if let Some(icon) = &self.icon {
6044                                div().child(Icon::from_path(icon.clone()))
6045                            } else {
6046                                div()
6047                            })
6048                            .child(Label::new(self.filename.clone()))
6049                        }
6050                    }),
6051            )
6052    }
6053}
6054
6055impl EventEmitter<Event> for ProjectPanel {}
6056
6057impl EventEmitter<PanelEvent> for ProjectPanel {}
6058
6059impl Panel for ProjectPanel {
6060    fn position(&self, _: &Window, cx: &App) -> DockPosition {
6061        match ProjectPanelSettings::get_global(cx).dock {
6062            DockSide::Left => DockPosition::Left,
6063            DockSide::Right => DockPosition::Right,
6064        }
6065    }
6066
6067    fn position_is_valid(&self, position: DockPosition) -> bool {
6068        matches!(position, DockPosition::Left | DockPosition::Right)
6069    }
6070
6071    fn set_position(&mut self, position: DockPosition, _: &mut Window, cx: &mut Context<Self>) {
6072        settings::update_settings_file(self.fs.clone(), cx, move |settings, _| {
6073            let dock = match position {
6074                DockPosition::Left | DockPosition::Bottom => DockSide::Left,
6075                DockPosition::Right => DockSide::Right,
6076            };
6077            settings.project_panel.get_or_insert_default().dock = Some(dock);
6078        });
6079    }
6080
6081    fn size(&self, _: &Window, cx: &App) -> Pixels {
6082        self.width
6083            .unwrap_or_else(|| ProjectPanelSettings::get_global(cx).default_width)
6084    }
6085
6086    fn set_size(&mut self, size: Option<Pixels>, window: &mut Window, cx: &mut Context<Self>) {
6087        self.width = size;
6088        cx.notify();
6089        cx.defer_in(window, |this, _, cx| {
6090            this.serialize(cx);
6091        });
6092    }
6093
6094    fn icon(&self, _: &Window, cx: &App) -> Option<IconName> {
6095        ProjectPanelSettings::get_global(cx)
6096            .button
6097            .then_some(IconName::FileTree)
6098    }
6099
6100    fn icon_tooltip(&self, _window: &Window, _cx: &App) -> Option<&'static str> {
6101        Some("Project Panel")
6102    }
6103
6104    fn toggle_action(&self) -> Box<dyn Action> {
6105        Box::new(ToggleFocus)
6106    }
6107
6108    fn persistent_name() -> &'static str {
6109        "Project Panel"
6110    }
6111
6112    fn panel_key() -> &'static str {
6113        PROJECT_PANEL_KEY
6114    }
6115
6116    fn starts_open(&self, _: &Window, cx: &App) -> bool {
6117        if !ProjectPanelSettings::get_global(cx).starts_open {
6118            return false;
6119        }
6120
6121        let project = &self.project.read(cx);
6122        project.visible_worktrees(cx).any(|tree| {
6123            tree.read(cx)
6124                .root_entry()
6125                .is_some_and(|entry| entry.is_dir())
6126        })
6127    }
6128
6129    fn activation_priority(&self) -> u32 {
6130        0
6131    }
6132}
6133
6134impl Focusable for ProjectPanel {
6135    fn focus_handle(&self, _cx: &App) -> FocusHandle {
6136        self.focus_handle.clone()
6137    }
6138}
6139
6140impl ClipboardEntry {
6141    fn is_cut(&self) -> bool {
6142        matches!(self, Self::Cut { .. })
6143    }
6144
6145    fn items(&self) -> &BTreeSet<SelectedEntry> {
6146        match self {
6147            ClipboardEntry::Copied(entries) | ClipboardEntry::Cut(entries) => entries,
6148        }
6149    }
6150
6151    fn into_copy_entry(self) -> Self {
6152        match self {
6153            ClipboardEntry::Copied(_) => self,
6154            ClipboardEntry::Cut(entries) => ClipboardEntry::Copied(entries),
6155        }
6156    }
6157}
6158
6159fn cmp<T: AsRef<Entry>>(lhs: T, rhs: T) -> cmp::Ordering {
6160    let entry_a = lhs.as_ref();
6161    let entry_b = rhs.as_ref();
6162    util::paths::compare_rel_paths(
6163        (&entry_a.path, entry_a.is_file()),
6164        (&entry_b.path, entry_b.is_file()),
6165    )
6166}
6167
6168pub fn sort_worktree_entries(entries: &mut [impl AsRef<Entry>]) {
6169    entries.sort_by(|lhs, rhs| cmp(lhs, rhs));
6170}
6171
6172pub fn par_sort_worktree_entries(entries: &mut Vec<GitEntry>) {
6173    entries.par_sort_by(|lhs, rhs| cmp(lhs, rhs));
6174}
6175
6176#[cfg(test)]
6177mod project_panel_tests;