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