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, None, 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, None, 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, None, 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, None, 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, None, 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, None, false, window, cx);
 687                    }
 688                    if project_panel_settings.hide_root != new_settings.hide_root {
 689                        this.update_visible_entries(None, None, false, window, cx);
 690                    }
 691                    if project_panel_settings.hide_hidden != new_settings.hide_hidden {
 692                        this.update_visible_entries(None, None, 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, None, 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, None, 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                        None,
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, None, 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)), None, 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)), None, 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, None, 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, None, 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, None, 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, None, 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(
1831            Some((worktree_id, NEW_ENTRY_ID)),
1832            Some(Box::new(|editor, window, cx| {
1833                editor.clear(window, cx);
1834                window.focus(&editor.focus_handle(cx));
1835            })),
1836            true,
1837            window,
1838            cx,
1839        );
1840        cx.notify();
1841    }
1842
1843    fn unflatten_entry_id(&self, leaf_entry_id: ProjectEntryId) -> ProjectEntryId {
1844        if let Some(ancestors) = self.state.ancestors.get(&leaf_entry_id) {
1845            ancestors
1846                .ancestors
1847                .get(ancestors.current_ancestor_depth)
1848                .copied()
1849                .unwrap_or(leaf_entry_id)
1850        } else {
1851            leaf_entry_id
1852        }
1853    }
1854
1855    fn rename_impl(
1856        &mut self,
1857        selection: Option<Range<usize>>,
1858        window: &mut Window,
1859        cx: &mut Context<Self>,
1860    ) {
1861        if let Some(SelectedEntry {
1862            worktree_id,
1863            entry_id,
1864        }) = self.state.selection
1865            && let Some(worktree) = self.project.read(cx).worktree_for_id(worktree_id, cx)
1866        {
1867            let sub_entry_id = self.unflatten_entry_id(entry_id);
1868            if let Some(entry) = worktree.read(cx).entry_for_id(sub_entry_id) {
1869                #[cfg(target_os = "windows")]
1870                if Some(entry) == worktree.read(cx).root_entry() {
1871                    return;
1872                }
1873
1874                if Some(entry) == worktree.read(cx).root_entry() {
1875                    let settings = ProjectPanelSettings::get_global(cx);
1876                    let visible_worktrees_count =
1877                        self.project.read(cx).visible_worktrees(cx).count();
1878                    if settings.hide_root && visible_worktrees_count == 1 {
1879                        return;
1880                    }
1881                }
1882
1883                self.state.edit_state = Some(EditState {
1884                    worktree_id,
1885                    entry_id: sub_entry_id,
1886                    leaf_entry_id: Some(entry_id),
1887                    is_dir: entry.is_dir(),
1888                    processing_filename: None,
1889                    previously_focused: None,
1890                    depth: 0,
1891                    validation_state: ValidationState::None,
1892                });
1893                let file_name = entry.path.file_name().unwrap_or_default().to_string();
1894                let selection = selection.unwrap_or_else(|| {
1895                    let file_stem = entry.path.file_stem().map(|s| s.to_string());
1896                    let selection_end =
1897                        file_stem.map_or(file_name.len(), |file_stem| file_stem.len());
1898                    0..selection_end
1899                });
1900                cx.notify();
1901                self.update_visible_entries(
1902                    None,
1903                    Some(Box::new(|editor, window, cx| {
1904                        editor.set_text(file_name, window, cx);
1905                        editor.change_selections(Default::default(), window, cx, |s| {
1906                            s.select_ranges([selection])
1907                        });
1908                        window.focus(&editor.focus_handle(cx));
1909                    })),
1910                    true,
1911                    window,
1912                    cx,
1913                );
1914            }
1915        }
1916    }
1917
1918    fn rename(&mut self, _: &Rename, window: &mut Window, cx: &mut Context<Self>) {
1919        self.rename_impl(None, window, cx);
1920    }
1921
1922    fn trash(&mut self, action: &Trash, window: &mut Window, cx: &mut Context<Self>) {
1923        self.remove(true, action.skip_prompt, window, cx);
1924    }
1925
1926    fn delete(&mut self, action: &Delete, window: &mut Window, cx: &mut Context<Self>) {
1927        self.remove(false, action.skip_prompt, window, cx);
1928    }
1929
1930    fn remove(
1931        &mut self,
1932        trash: bool,
1933        skip_prompt: bool,
1934        window: &mut Window,
1935        cx: &mut Context<ProjectPanel>,
1936    ) {
1937        maybe!({
1938            let items_to_delete = self.disjoint_entries(cx);
1939            if items_to_delete.is_empty() {
1940                return None;
1941            }
1942            let project = self.project.read(cx);
1943
1944            let mut dirty_buffers = 0;
1945            let file_paths = items_to_delete
1946                .iter()
1947                .filter_map(|selection| {
1948                    let project_path = project.path_for_entry(selection.entry_id, cx)?;
1949                    dirty_buffers +=
1950                        project.dirty_buffers(cx).any(|path| path == project_path) as usize;
1951                    Some((
1952                        selection.entry_id,
1953                        project_path.path.file_name()?.to_string(),
1954                    ))
1955                })
1956                .collect::<Vec<_>>();
1957            if file_paths.is_empty() {
1958                return None;
1959            }
1960            let answer = if !skip_prompt {
1961                let operation = if trash { "Trash" } else { "Delete" };
1962                let prompt = match file_paths.first() {
1963                    Some((_, path)) if file_paths.len() == 1 => {
1964                        let unsaved_warning = if dirty_buffers > 0 {
1965                            "\n\nIt has unsaved changes, which will be lost."
1966                        } else {
1967                            ""
1968                        };
1969
1970                        format!("{operation} {path}?{unsaved_warning}")
1971                    }
1972                    _ => {
1973                        const CUTOFF_POINT: usize = 10;
1974                        let names = if file_paths.len() > CUTOFF_POINT {
1975                            let truncated_path_counts = file_paths.len() - CUTOFF_POINT;
1976                            let mut paths = file_paths
1977                                .iter()
1978                                .map(|(_, path)| path.clone())
1979                                .take(CUTOFF_POINT)
1980                                .collect::<Vec<_>>();
1981                            paths.truncate(CUTOFF_POINT);
1982                            if truncated_path_counts == 1 {
1983                                paths.push(".. 1 file not shown".into());
1984                            } else {
1985                                paths.push(format!(".. {} files not shown", truncated_path_counts));
1986                            }
1987                            paths
1988                        } else {
1989                            file_paths.iter().map(|(_, path)| path.clone()).collect()
1990                        };
1991                        let unsaved_warning = if dirty_buffers == 0 {
1992                            String::new()
1993                        } else if dirty_buffers == 1 {
1994                            "\n\n1 of these has unsaved changes, which will be lost.".to_string()
1995                        } else {
1996                            format!(
1997                                "\n\n{dirty_buffers} of these have unsaved changes, which will be lost."
1998                            )
1999                        };
2000
2001                        format!(
2002                            "Do you want to {} the following {} files?\n{}{unsaved_warning}",
2003                            operation.to_lowercase(),
2004                            file_paths.len(),
2005                            names.join("\n")
2006                        )
2007                    }
2008                };
2009                Some(window.prompt(PromptLevel::Info, &prompt, None, &[operation, "Cancel"], cx))
2010            } else {
2011                None
2012            };
2013            let next_selection = self.find_next_selection_after_deletion(items_to_delete, cx);
2014            cx.spawn_in(window, async move |panel, cx| {
2015                if let Some(answer) = answer
2016                    && answer.await != Ok(0)
2017                {
2018                    return anyhow::Ok(());
2019                }
2020                for (entry_id, _) in file_paths {
2021                    panel
2022                        .update(cx, |panel, cx| {
2023                            panel
2024                                .project
2025                                .update(cx, |project, cx| project.delete_entry(entry_id, trash, cx))
2026                                .context("no such entry")
2027                        })??
2028                        .await?;
2029                }
2030                panel.update_in(cx, |panel, window, cx| {
2031                    if let Some(next_selection) = next_selection {
2032                        panel.update_visible_entries(
2033                            Some((next_selection.worktree_id, next_selection.entry_id)),
2034                            None,
2035                            true,
2036                            window,
2037                            cx,
2038                        );
2039                    } else {
2040                        panel.select_last(&SelectLast {}, window, cx);
2041                    }
2042                })?;
2043                Ok(())
2044            })
2045            .detach_and_log_err(cx);
2046            Some(())
2047        });
2048    }
2049
2050    fn find_next_selection_after_deletion(
2051        &self,
2052        sanitized_entries: BTreeSet<SelectedEntry>,
2053        cx: &mut Context<Self>,
2054    ) -> Option<SelectedEntry> {
2055        if sanitized_entries.is_empty() {
2056            return None;
2057        }
2058        let project = self.project.read(cx);
2059        let (worktree_id, worktree) = sanitized_entries
2060            .iter()
2061            .map(|entry| entry.worktree_id)
2062            .filter_map(|id| project.worktree_for_id(id, cx).map(|w| (id, w.read(cx))))
2063            .max_by(|(_, a), (_, b)| a.root_name().cmp(b.root_name()))?;
2064        let git_store = project.git_store().read(cx);
2065
2066        let marked_entries_in_worktree = sanitized_entries
2067            .iter()
2068            .filter(|e| e.worktree_id == worktree_id)
2069            .collect::<HashSet<_>>();
2070        let latest_entry = marked_entries_in_worktree
2071            .iter()
2072            .max_by(|a, b| {
2073                match (
2074                    worktree.entry_for_id(a.entry_id),
2075                    worktree.entry_for_id(b.entry_id),
2076                ) {
2077                    (Some(a), Some(b)) => compare_paths(
2078                        (a.path.as_std_path(), a.is_file()),
2079                        (b.path.as_std_path(), b.is_file()),
2080                    ),
2081                    _ => cmp::Ordering::Equal,
2082                }
2083            })
2084            .and_then(|e| worktree.entry_for_id(e.entry_id))?;
2085
2086        let parent_path = latest_entry.path.parent()?;
2087        let parent_entry = worktree.entry_for_path(parent_path)?;
2088
2089        // Remove all siblings that are being deleted except the last marked entry
2090        let repo_snapshots = git_store.repo_snapshots(cx);
2091        let worktree_snapshot = worktree.snapshot();
2092        let hide_gitignore = ProjectPanelSettings::get_global(cx).hide_gitignore;
2093        let mut siblings: Vec<_> =
2094            ChildEntriesGitIter::new(&repo_snapshots, &worktree_snapshot, parent_path)
2095                .filter(|sibling| {
2096                    (sibling.id == latest_entry.id)
2097                        || (!marked_entries_in_worktree.contains(&&SelectedEntry {
2098                            worktree_id,
2099                            entry_id: sibling.id,
2100                        }) && (!hide_gitignore || !sibling.is_ignored))
2101                })
2102                .map(|entry| entry.to_owned())
2103                .collect();
2104
2105        sort_worktree_entries(&mut siblings);
2106        let sibling_entry_index = siblings
2107            .iter()
2108            .position(|sibling| sibling.id == latest_entry.id)?;
2109
2110        if let Some(next_sibling) = sibling_entry_index
2111            .checked_add(1)
2112            .and_then(|i| siblings.get(i))
2113        {
2114            return Some(SelectedEntry {
2115                worktree_id,
2116                entry_id: next_sibling.id,
2117            });
2118        }
2119        if let Some(prev_sibling) = sibling_entry_index
2120            .checked_sub(1)
2121            .and_then(|i| siblings.get(i))
2122        {
2123            return Some(SelectedEntry {
2124                worktree_id,
2125                entry_id: prev_sibling.id,
2126            });
2127        }
2128        // No neighbour sibling found, fall back to parent
2129        Some(SelectedEntry {
2130            worktree_id,
2131            entry_id: parent_entry.id,
2132        })
2133    }
2134
2135    fn unfold_directory(
2136        &mut self,
2137        _: &UnfoldDirectory,
2138        window: &mut Window,
2139        cx: &mut Context<Self>,
2140    ) {
2141        if let Some((worktree, entry)) = self.selected_entry(cx) {
2142            self.state.unfolded_dir_ids.insert(entry.id);
2143
2144            let snapshot = worktree.snapshot();
2145            let mut parent_path = entry.path.parent();
2146            while let Some(path) = parent_path {
2147                if let Some(parent_entry) = worktree.entry_for_path(path) {
2148                    let mut children_iter = snapshot.child_entries(path);
2149
2150                    if children_iter.by_ref().take(2).count() > 1 {
2151                        break;
2152                    }
2153
2154                    self.state.unfolded_dir_ids.insert(parent_entry.id);
2155                    parent_path = path.parent();
2156                } else {
2157                    break;
2158                }
2159            }
2160
2161            self.update_visible_entries(None, None, true, window, cx);
2162            cx.notify();
2163        }
2164    }
2165
2166    fn fold_directory(&mut self, _: &FoldDirectory, window: &mut Window, cx: &mut Context<Self>) {
2167        if let Some((worktree, entry)) = self.selected_entry(cx) {
2168            self.state.unfolded_dir_ids.remove(&entry.id);
2169
2170            let snapshot = worktree.snapshot();
2171            let mut path = &*entry.path;
2172            loop {
2173                let mut child_entries_iter = snapshot.child_entries(path);
2174                if let Some(child) = child_entries_iter.next() {
2175                    if child_entries_iter.next().is_none() && child.is_dir() {
2176                        self.state.unfolded_dir_ids.remove(&child.id);
2177                        path = &*child.path;
2178                    } else {
2179                        break;
2180                    }
2181                } else {
2182                    break;
2183                }
2184            }
2185
2186            self.update_visible_entries(None, None, true, window, cx);
2187            cx.notify();
2188        }
2189    }
2190
2191    fn scroll_up(&mut self, _: &ScrollUp, window: &mut Window, cx: &mut Context<Self>) {
2192        for _ in 0..self.rendered_entries_len / 2 {
2193            window.dispatch_action(SelectPrevious.boxed_clone(), cx);
2194        }
2195    }
2196
2197    fn scroll_down(&mut self, _: &ScrollDown, window: &mut Window, cx: &mut Context<Self>) {
2198        for _ in 0..self.rendered_entries_len / 2 {
2199            window.dispatch_action(SelectNext.boxed_clone(), cx);
2200        }
2201    }
2202
2203    fn scroll_cursor_center(
2204        &mut self,
2205        _: &ScrollCursorCenter,
2206        _: &mut Window,
2207        cx: &mut Context<Self>,
2208    ) {
2209        if let Some((_, _, index)) = self
2210            .state
2211            .selection
2212            .and_then(|s| self.index_for_selection(s))
2213        {
2214            self.scroll_handle
2215                .scroll_to_item_strict(index, ScrollStrategy::Center);
2216            cx.notify();
2217        }
2218    }
2219
2220    fn scroll_cursor_top(&mut self, _: &ScrollCursorTop, _: &mut Window, cx: &mut Context<Self>) {
2221        if let Some((_, _, index)) = self
2222            .state
2223            .selection
2224            .and_then(|s| self.index_for_selection(s))
2225        {
2226            self.scroll_handle
2227                .scroll_to_item_strict(index, ScrollStrategy::Top);
2228            cx.notify();
2229        }
2230    }
2231
2232    fn scroll_cursor_bottom(
2233        &mut self,
2234        _: &ScrollCursorBottom,
2235        _: &mut Window,
2236        cx: &mut Context<Self>,
2237    ) {
2238        if let Some((_, _, index)) = self
2239            .state
2240            .selection
2241            .and_then(|s| self.index_for_selection(s))
2242        {
2243            self.scroll_handle
2244                .scroll_to_item_strict(index, ScrollStrategy::Bottom);
2245            cx.notify();
2246        }
2247    }
2248
2249    fn select_next(&mut self, _: &SelectNext, window: &mut Window, cx: &mut Context<Self>) {
2250        if let Some(edit_state) = &self.state.edit_state
2251            && edit_state.processing_filename.is_none()
2252        {
2253            self.filename_editor.update(cx, |editor, cx| {
2254                editor.move_to_end_of_line(
2255                    &editor::actions::MoveToEndOfLine {
2256                        stop_at_soft_wraps: false,
2257                    },
2258                    window,
2259                    cx,
2260                );
2261            });
2262            return;
2263        }
2264        if let Some(selection) = self.state.selection {
2265            let (mut worktree_ix, mut entry_ix, _) =
2266                self.index_for_selection(selection).unwrap_or_default();
2267            if let Some(worktree_entries) = self
2268                .state
2269                .visible_entries
2270                .get(worktree_ix)
2271                .map(|v| &v.entries)
2272            {
2273                if entry_ix + 1 < worktree_entries.len() {
2274                    entry_ix += 1;
2275                } else {
2276                    worktree_ix += 1;
2277                    entry_ix = 0;
2278                }
2279            }
2280
2281            if let Some(VisibleEntriesForWorktree {
2282                worktree_id,
2283                entries,
2284                ..
2285            }) = self.state.visible_entries.get(worktree_ix)
2286                && let Some(entry) = entries.get(entry_ix)
2287            {
2288                let selection = SelectedEntry {
2289                    worktree_id: *worktree_id,
2290                    entry_id: entry.id,
2291                };
2292                self.state.selection = Some(selection);
2293                if window.modifiers().shift {
2294                    self.marked_entries.push(selection);
2295                }
2296
2297                self.autoscroll(cx);
2298                cx.notify();
2299            }
2300        } else {
2301            self.select_first(&SelectFirst {}, window, cx);
2302        }
2303    }
2304
2305    fn select_prev_diagnostic(
2306        &mut self,
2307        action: &SelectPrevDiagnostic,
2308        window: &mut Window,
2309        cx: &mut Context<Self>,
2310    ) {
2311        let selection = self.find_entry(
2312            self.state.selection.as_ref(),
2313            true,
2314            |entry, worktree_id| {
2315                self.state.selection.is_none_or(|selection| {
2316                    if selection.worktree_id == worktree_id {
2317                        selection.entry_id != entry.id
2318                    } else {
2319                        true
2320                    }
2321                }) && entry.is_file()
2322                    && self
2323                        .diagnostics
2324                        .get(&(worktree_id, entry.path.clone()))
2325                        .is_some_and(|severity| action.severity.matches(*severity))
2326            },
2327            cx,
2328        );
2329
2330        if let Some(selection) = selection {
2331            self.state.selection = Some(selection);
2332            self.expand_entry(selection.worktree_id, selection.entry_id, cx);
2333            self.update_visible_entries(
2334                Some((selection.worktree_id, selection.entry_id)),
2335                None,
2336                true,
2337                window,
2338                cx,
2339            );
2340            cx.notify();
2341        }
2342    }
2343
2344    fn select_next_diagnostic(
2345        &mut self,
2346        action: &SelectNextDiagnostic,
2347        window: &mut Window,
2348        cx: &mut Context<Self>,
2349    ) {
2350        let selection = self.find_entry(
2351            self.state.selection.as_ref(),
2352            false,
2353            |entry, worktree_id| {
2354                self.state.selection.is_none_or(|selection| {
2355                    if selection.worktree_id == worktree_id {
2356                        selection.entry_id != entry.id
2357                    } else {
2358                        true
2359                    }
2360                }) && entry.is_file()
2361                    && self
2362                        .diagnostics
2363                        .get(&(worktree_id, entry.path.clone()))
2364                        .is_some_and(|severity| action.severity.matches(*severity))
2365            },
2366            cx,
2367        );
2368
2369        if let Some(selection) = selection {
2370            self.state.selection = Some(selection);
2371            self.expand_entry(selection.worktree_id, selection.entry_id, cx);
2372            self.update_visible_entries(
2373                Some((selection.worktree_id, selection.entry_id)),
2374                None,
2375                true,
2376                window,
2377                cx,
2378            );
2379            cx.notify();
2380        }
2381    }
2382
2383    fn select_prev_git_entry(
2384        &mut self,
2385        _: &SelectPrevGitEntry,
2386        window: &mut Window,
2387        cx: &mut Context<Self>,
2388    ) {
2389        let selection = self.find_entry(
2390            self.state.selection.as_ref(),
2391            true,
2392            |entry, worktree_id| {
2393                (self.state.selection.is_none()
2394                    || self.state.selection.is_some_and(|selection| {
2395                        if selection.worktree_id == worktree_id {
2396                            selection.entry_id != entry.id
2397                        } else {
2398                            true
2399                        }
2400                    }))
2401                    && entry.is_file()
2402                    && entry.git_summary.index.modified + entry.git_summary.worktree.modified > 0
2403            },
2404            cx,
2405        );
2406
2407        if let Some(selection) = selection {
2408            self.state.selection = Some(selection);
2409            self.expand_entry(selection.worktree_id, selection.entry_id, cx);
2410            self.update_visible_entries(
2411                Some((selection.worktree_id, selection.entry_id)),
2412                None,
2413                true,
2414                window,
2415                cx,
2416            );
2417            cx.notify();
2418        }
2419    }
2420
2421    fn select_prev_directory(
2422        &mut self,
2423        _: &SelectPrevDirectory,
2424        _: &mut Window,
2425        cx: &mut Context<Self>,
2426    ) {
2427        let selection = self.find_visible_entry(
2428            self.state.selection.as_ref(),
2429            true,
2430            |entry, worktree_id| {
2431                self.state.selection.is_none_or(|selection| {
2432                    if selection.worktree_id == worktree_id {
2433                        selection.entry_id != entry.id
2434                    } else {
2435                        true
2436                    }
2437                }) && entry.is_dir()
2438            },
2439            cx,
2440        );
2441
2442        if let Some(selection) = selection {
2443            self.state.selection = Some(selection);
2444            self.autoscroll(cx);
2445            cx.notify();
2446        }
2447    }
2448
2449    fn select_next_directory(
2450        &mut self,
2451        _: &SelectNextDirectory,
2452        _: &mut Window,
2453        cx: &mut Context<Self>,
2454    ) {
2455        let selection = self.find_visible_entry(
2456            self.state.selection.as_ref(),
2457            false,
2458            |entry, worktree_id| {
2459                self.state.selection.is_none_or(|selection| {
2460                    if selection.worktree_id == worktree_id {
2461                        selection.entry_id != entry.id
2462                    } else {
2463                        true
2464                    }
2465                }) && entry.is_dir()
2466            },
2467            cx,
2468        );
2469
2470        if let Some(selection) = selection {
2471            self.state.selection = Some(selection);
2472            self.autoscroll(cx);
2473            cx.notify();
2474        }
2475    }
2476
2477    fn select_next_git_entry(
2478        &mut self,
2479        _: &SelectNextGitEntry,
2480        window: &mut Window,
2481        cx: &mut Context<Self>,
2482    ) {
2483        let selection = self.find_entry(
2484            self.state.selection.as_ref(),
2485            false,
2486            |entry, worktree_id| {
2487                self.state.selection.is_none_or(|selection| {
2488                    if selection.worktree_id == worktree_id {
2489                        selection.entry_id != entry.id
2490                    } else {
2491                        true
2492                    }
2493                }) && entry.is_file()
2494                    && entry.git_summary.index.modified + entry.git_summary.worktree.modified > 0
2495            },
2496            cx,
2497        );
2498
2499        if let Some(selection) = selection {
2500            self.state.selection = Some(selection);
2501            self.expand_entry(selection.worktree_id, selection.entry_id, cx);
2502            self.update_visible_entries(
2503                Some((selection.worktree_id, selection.entry_id)),
2504                None,
2505                true,
2506                window,
2507                cx,
2508            );
2509            cx.notify();
2510        }
2511    }
2512
2513    fn select_parent(&mut self, _: &SelectParent, window: &mut Window, cx: &mut Context<Self>) {
2514        if let Some((worktree, entry)) = self.selected_sub_entry(cx) {
2515            if let Some(parent) = entry.path.parent() {
2516                let worktree = worktree.read(cx);
2517                if let Some(parent_entry) = worktree.entry_for_path(parent) {
2518                    self.state.selection = Some(SelectedEntry {
2519                        worktree_id: worktree.id(),
2520                        entry_id: parent_entry.id,
2521                    });
2522                    self.autoscroll(cx);
2523                    cx.notify();
2524                }
2525            }
2526        } else {
2527            self.select_first(&SelectFirst {}, window, cx);
2528        }
2529    }
2530
2531    fn select_first(&mut self, _: &SelectFirst, window: &mut Window, cx: &mut Context<Self>) {
2532        if let Some(VisibleEntriesForWorktree {
2533            worktree_id,
2534            entries,
2535            ..
2536        }) = self.state.visible_entries.first()
2537            && let Some(entry) = entries.first()
2538        {
2539            let selection = SelectedEntry {
2540                worktree_id: *worktree_id,
2541                entry_id: entry.id,
2542            };
2543            self.state.selection = Some(selection);
2544            if window.modifiers().shift {
2545                self.marked_entries.push(selection);
2546            }
2547            self.autoscroll(cx);
2548            cx.notify();
2549        }
2550    }
2551
2552    fn select_last(&mut self, _: &SelectLast, _: &mut Window, cx: &mut Context<Self>) {
2553        if let Some(VisibleEntriesForWorktree {
2554            worktree_id,
2555            entries,
2556            ..
2557        }) = self.state.visible_entries.last()
2558        {
2559            let worktree = self.project.read(cx).worktree_for_id(*worktree_id, cx);
2560            if let (Some(worktree), Some(entry)) = (worktree, entries.last()) {
2561                let worktree = worktree.read(cx);
2562                if let Some(entry) = worktree.entry_for_id(entry.id) {
2563                    let selection = SelectedEntry {
2564                        worktree_id: *worktree_id,
2565                        entry_id: entry.id,
2566                    };
2567                    self.state.selection = Some(selection);
2568                    self.autoscroll(cx);
2569                    cx.notify();
2570                }
2571            }
2572        }
2573    }
2574
2575    fn autoscroll(&mut self, cx: &mut Context<Self>) {
2576        if let Some((_, _, index)) = self
2577            .state
2578            .selection
2579            .and_then(|s| self.index_for_selection(s))
2580        {
2581            self.scroll_handle.scroll_to_item_with_offset(
2582                index,
2583                ScrollStrategy::Center,
2584                self.sticky_items_count,
2585            );
2586            cx.notify();
2587        }
2588    }
2589
2590    fn cut(&mut self, _: &Cut, _: &mut Window, cx: &mut Context<Self>) {
2591        let entries = self.disjoint_entries(cx);
2592        if !entries.is_empty() {
2593            self.clipboard = Some(ClipboardEntry::Cut(entries));
2594            cx.notify();
2595        }
2596    }
2597
2598    fn copy(&mut self, _: &Copy, _: &mut Window, cx: &mut Context<Self>) {
2599        let entries = self.disjoint_entries(cx);
2600        if !entries.is_empty() {
2601            self.clipboard = Some(ClipboardEntry::Copied(entries));
2602            cx.notify();
2603        }
2604    }
2605
2606    fn create_paste_path(
2607        &self,
2608        source: &SelectedEntry,
2609        (worktree, target_entry): (Entity<Worktree>, &Entry),
2610        cx: &App,
2611    ) -> Option<(Arc<RelPath>, Option<Range<usize>>)> {
2612        let mut new_path = target_entry.path.to_rel_path_buf();
2613        // If we're pasting into a file, or a directory into itself, go up one level.
2614        if target_entry.is_file() || (target_entry.is_dir() && target_entry.id == source.entry_id) {
2615            new_path.pop();
2616        }
2617        let clipboard_entry_file_name = self
2618            .project
2619            .read(cx)
2620            .path_for_entry(source.entry_id, cx)?
2621            .path
2622            .file_name()?
2623            .to_string();
2624        new_path.push(RelPath::unix(&clipboard_entry_file_name).unwrap());
2625        let extension = new_path.extension().map(|s| s.to_string());
2626        let file_name_without_extension = new_path.file_stem()?.to_string();
2627        let file_name_len = file_name_without_extension.len();
2628        let mut disambiguation_range = None;
2629        let mut ix = 0;
2630        {
2631            let worktree = worktree.read(cx);
2632            while worktree.entry_for_path(&new_path).is_some() {
2633                new_path.pop();
2634
2635                let mut new_file_name = file_name_without_extension.to_string();
2636
2637                let disambiguation = " copy";
2638                let mut disambiguation_len = disambiguation.len();
2639
2640                new_file_name.push_str(disambiguation);
2641
2642                if ix > 0 {
2643                    let extra_disambiguation = format!(" {}", ix);
2644                    disambiguation_len += extra_disambiguation.len();
2645                    new_file_name.push_str(&extra_disambiguation);
2646                }
2647                if let Some(extension) = extension.as_ref() {
2648                    new_file_name.push_str(".");
2649                    new_file_name.push_str(extension);
2650                }
2651
2652                new_path.push(RelPath::unix(&new_file_name).unwrap());
2653
2654                disambiguation_range = Some(file_name_len..(file_name_len + disambiguation_len));
2655                ix += 1;
2656            }
2657        }
2658        Some((new_path.as_rel_path().into(), disambiguation_range))
2659    }
2660
2661    fn paste(&mut self, _: &Paste, window: &mut Window, cx: &mut Context<Self>) {
2662        maybe!({
2663            let (worktree, entry) = self.selected_entry_handle(cx)?;
2664            let entry = entry.clone();
2665            let worktree_id = worktree.read(cx).id();
2666            let clipboard_entries = self
2667                .clipboard
2668                .as_ref()
2669                .filter(|clipboard| !clipboard.items().is_empty())?;
2670
2671            enum PasteTask {
2672                Rename(Task<Result<CreatedEntry>>),
2673                Copy(Task<Result<Option<Entry>>>),
2674            }
2675
2676            let mut paste_tasks = Vec::new();
2677            let mut disambiguation_range = None;
2678            let clip_is_cut = clipboard_entries.is_cut();
2679            for clipboard_entry in clipboard_entries.items() {
2680                let (new_path, new_disambiguation_range) =
2681                    self.create_paste_path(clipboard_entry, self.selected_sub_entry(cx)?, cx)?;
2682                let clip_entry_id = clipboard_entry.entry_id;
2683                let task = if clipboard_entries.is_cut() {
2684                    let task = self.project.update(cx, |project, cx| {
2685                        project.rename_entry(clip_entry_id, (worktree_id, new_path).into(), cx)
2686                    });
2687                    PasteTask::Rename(task)
2688                } else {
2689                    let task = self.project.update(cx, |project, cx| {
2690                        project.copy_entry(clip_entry_id, (worktree_id, new_path).into(), cx)
2691                    });
2692                    PasteTask::Copy(task)
2693                };
2694                paste_tasks.push(task);
2695                disambiguation_range = new_disambiguation_range.or(disambiguation_range);
2696            }
2697
2698            let item_count = paste_tasks.len();
2699
2700            cx.spawn_in(window, async move |project_panel, cx| {
2701                let mut last_succeed = None;
2702                for task in paste_tasks {
2703                    match task {
2704                        PasteTask::Rename(task) => {
2705                            if let Some(CreatedEntry::Included(entry)) =
2706                                task.await.notify_async_err(cx)
2707                            {
2708                                last_succeed = Some(entry);
2709                            }
2710                        }
2711                        PasteTask::Copy(task) => {
2712                            if let Some(Some(entry)) = task.await.notify_async_err(cx) {
2713                                last_succeed = Some(entry);
2714                            }
2715                        }
2716                    }
2717                }
2718                // update selection
2719                if let Some(entry) = last_succeed {
2720                    project_panel
2721                        .update_in(cx, |project_panel, window, cx| {
2722                            project_panel.state.selection = Some(SelectedEntry {
2723                                worktree_id,
2724                                entry_id: entry.id,
2725                            });
2726
2727                            if item_count == 1 {
2728                                // open entry if not dir, setting is enabled, and only focus if rename is not pending
2729                                if !entry.is_dir() {
2730                                    let settings = ProjectPanelSettings::get_global(cx);
2731                                    if settings.auto_open.should_open_on_paste() {
2732                                        project_panel.open_entry(
2733                                            entry.id,
2734                                            disambiguation_range.is_none(),
2735                                            false,
2736                                            cx,
2737                                        );
2738                                    }
2739                                }
2740
2741                                // if only one entry was pasted and it was disambiguated, open the rename editor
2742                                if disambiguation_range.is_some() {
2743                                    cx.defer_in(window, |this, window, cx| {
2744                                        this.rename_impl(disambiguation_range, window, cx);
2745                                    });
2746                                }
2747                            }
2748                        })
2749                        .ok();
2750                }
2751
2752                anyhow::Ok(())
2753            })
2754            .detach_and_log_err(cx);
2755
2756            if clip_is_cut {
2757                // Convert the clipboard cut entry to a copy entry after the first paste.
2758                self.clipboard = self.clipboard.take().map(ClipboardEntry::into_copy_entry);
2759            }
2760
2761            self.expand_entry(worktree_id, entry.id, cx);
2762            Some(())
2763        });
2764    }
2765
2766    fn duplicate(&mut self, _: &Duplicate, window: &mut Window, cx: &mut Context<Self>) {
2767        self.copy(&Copy {}, window, cx);
2768        self.paste(&Paste {}, window, cx);
2769    }
2770
2771    fn copy_path(
2772        &mut self,
2773        _: &zed_actions::workspace::CopyPath,
2774        _: &mut Window,
2775        cx: &mut Context<Self>,
2776    ) {
2777        let abs_file_paths = {
2778            let project = self.project.read(cx);
2779            self.effective_entries()
2780                .into_iter()
2781                .filter_map(|entry| {
2782                    let entry_path = project.path_for_entry(entry.entry_id, cx)?.path;
2783                    Some(
2784                        project
2785                            .worktree_for_id(entry.worktree_id, cx)?
2786                            .read(cx)
2787                            .absolutize(&entry_path)
2788                            .to_string_lossy()
2789                            .to_string(),
2790                    )
2791                })
2792                .collect::<Vec<_>>()
2793        };
2794        if !abs_file_paths.is_empty() {
2795            cx.write_to_clipboard(ClipboardItem::new_string(abs_file_paths.join("\n")));
2796        }
2797    }
2798
2799    fn copy_relative_path(
2800        &mut self,
2801        _: &zed_actions::workspace::CopyRelativePath,
2802        _: &mut Window,
2803        cx: &mut Context<Self>,
2804    ) {
2805        let path_style = self.project.read(cx).path_style(cx);
2806        let file_paths = {
2807            let project = self.project.read(cx);
2808            self.effective_entries()
2809                .into_iter()
2810                .filter_map(|entry| {
2811                    Some(
2812                        project
2813                            .path_for_entry(entry.entry_id, cx)?
2814                            .path
2815                            .display(path_style)
2816                            .into_owned(),
2817                    )
2818                })
2819                .collect::<Vec<_>>()
2820        };
2821        if !file_paths.is_empty() {
2822            cx.write_to_clipboard(ClipboardItem::new_string(file_paths.join("\n")));
2823        }
2824    }
2825
2826    fn reveal_in_finder(
2827        &mut self,
2828        _: &RevealInFileManager,
2829        _: &mut Window,
2830        cx: &mut Context<Self>,
2831    ) {
2832        if let Some((worktree, entry)) = self.selected_sub_entry(cx) {
2833            cx.reveal_path(&worktree.read(cx).absolutize(&entry.path));
2834        }
2835    }
2836
2837    fn remove_from_project(
2838        &mut self,
2839        _: &RemoveFromProject,
2840        _window: &mut Window,
2841        cx: &mut Context<Self>,
2842    ) {
2843        for entry in self.effective_entries().iter() {
2844            let worktree_id = entry.worktree_id;
2845            self.project
2846                .update(cx, |project, cx| project.remove_worktree(worktree_id, cx));
2847        }
2848    }
2849
2850    fn file_abs_paths_to_diff(&self, cx: &Context<Self>) -> Option<(PathBuf, PathBuf)> {
2851        let mut selections_abs_path = self
2852            .marked_entries
2853            .iter()
2854            .filter_map(|entry| {
2855                let project = self.project.read(cx);
2856                let worktree = project.worktree_for_id(entry.worktree_id, cx)?;
2857                let entry = worktree.read(cx).entry_for_id(entry.entry_id)?;
2858                if !entry.is_file() {
2859                    return None;
2860                }
2861                Some(worktree.read(cx).absolutize(&entry.path))
2862            })
2863            .rev();
2864
2865        let last_path = selections_abs_path.next()?;
2866        let previous_to_last = selections_abs_path.next()?;
2867        Some((previous_to_last, last_path))
2868    }
2869
2870    fn compare_marked_files(
2871        &mut self,
2872        _: &CompareMarkedFiles,
2873        window: &mut Window,
2874        cx: &mut Context<Self>,
2875    ) {
2876        let selected_files = self.file_abs_paths_to_diff(cx);
2877        if let Some((file_path1, file_path2)) = selected_files {
2878            self.workspace
2879                .update(cx, |workspace, cx| {
2880                    FileDiffView::open(file_path1, file_path2, workspace, window, cx)
2881                        .detach_and_log_err(cx);
2882                })
2883                .ok();
2884        }
2885    }
2886
2887    fn open_system(&mut self, _: &OpenWithSystem, _: &mut Window, cx: &mut Context<Self>) {
2888        if let Some((worktree, entry)) = self.selected_entry(cx) {
2889            let abs_path = worktree.absolutize(&entry.path);
2890            cx.open_with_system(&abs_path);
2891        }
2892    }
2893
2894    fn open_in_terminal(
2895        &mut self,
2896        _: &OpenInTerminal,
2897        window: &mut Window,
2898        cx: &mut Context<Self>,
2899    ) {
2900        if let Some((worktree, entry)) = self.selected_sub_entry(cx) {
2901            let abs_path = match &entry.canonical_path {
2902                Some(canonical_path) => canonical_path.to_path_buf(),
2903                None => worktree.read(cx).absolutize(&entry.path),
2904            };
2905
2906            let working_directory = if entry.is_dir() {
2907                Some(abs_path)
2908            } else {
2909                abs_path.parent().map(|path| path.to_path_buf())
2910            };
2911            if let Some(working_directory) = working_directory {
2912                window.dispatch_action(
2913                    workspace::OpenTerminal { working_directory }.boxed_clone(),
2914                    cx,
2915                )
2916            }
2917        }
2918    }
2919
2920    pub fn new_search_in_directory(
2921        &mut self,
2922        _: &NewSearchInDirectory,
2923        window: &mut Window,
2924        cx: &mut Context<Self>,
2925    ) {
2926        if let Some((worktree, entry)) = self.selected_sub_entry(cx) {
2927            let dir_path = if entry.is_dir() {
2928                entry.path.clone()
2929            } else {
2930                // entry is a file, use its parent directory
2931                match entry.path.parent() {
2932                    Some(parent) => Arc::from(parent),
2933                    None => {
2934                        // File at root, open search with empty filter
2935                        self.workspace
2936                            .update(cx, |workspace, cx| {
2937                                search::ProjectSearchView::new_search_in_directory(
2938                                    workspace,
2939                                    RelPath::empty(),
2940                                    window,
2941                                    cx,
2942                                );
2943                            })
2944                            .ok();
2945                        return;
2946                    }
2947                }
2948            };
2949
2950            let include_root = self.project.read(cx).visible_worktrees(cx).count() > 1;
2951            let dir_path = if include_root {
2952                worktree.read(cx).root_name().join(&dir_path)
2953            } else {
2954                dir_path
2955            };
2956
2957            self.workspace
2958                .update(cx, |workspace, cx| {
2959                    search::ProjectSearchView::new_search_in_directory(
2960                        workspace, &dir_path, window, cx,
2961                    );
2962                })
2963                .ok();
2964        }
2965    }
2966
2967    fn move_entry(
2968        &mut self,
2969        entry_to_move: ProjectEntryId,
2970        destination: ProjectEntryId,
2971        destination_is_file: bool,
2972        cx: &mut Context<Self>,
2973    ) {
2974        if self
2975            .project
2976            .read(cx)
2977            .entry_is_worktree_root(entry_to_move, cx)
2978        {
2979            self.move_worktree_root(entry_to_move, destination, cx)
2980        } else {
2981            self.move_worktree_entry(entry_to_move, destination, destination_is_file, cx)
2982        }
2983    }
2984
2985    fn move_worktree_root(
2986        &mut self,
2987        entry_to_move: ProjectEntryId,
2988        destination: ProjectEntryId,
2989        cx: &mut Context<Self>,
2990    ) {
2991        self.project.update(cx, |project, cx| {
2992            let Some(worktree_to_move) = project.worktree_for_entry(entry_to_move, cx) else {
2993                return;
2994            };
2995            let Some(destination_worktree) = project.worktree_for_entry(destination, cx) else {
2996                return;
2997            };
2998
2999            let worktree_id = worktree_to_move.read(cx).id();
3000            let destination_id = destination_worktree.read(cx).id();
3001
3002            project
3003                .move_worktree(worktree_id, destination_id, cx)
3004                .log_err();
3005        });
3006    }
3007
3008    fn move_worktree_entry(
3009        &mut self,
3010        entry_to_move: ProjectEntryId,
3011        destination_entry: ProjectEntryId,
3012        destination_is_file: bool,
3013        cx: &mut Context<Self>,
3014    ) {
3015        if entry_to_move == destination_entry {
3016            return;
3017        }
3018
3019        let destination_worktree = self.project.update(cx, |project, cx| {
3020            let source_path = project.path_for_entry(entry_to_move, cx)?;
3021            let destination_path = project.path_for_entry(destination_entry, cx)?;
3022            let destination_worktree_id = destination_path.worktree_id;
3023
3024            let mut destination_path = destination_path.path.as_ref();
3025            if destination_is_file {
3026                destination_path = destination_path.parent()?;
3027            }
3028
3029            let mut new_path = destination_path.to_rel_path_buf();
3030            new_path.push(RelPath::unix(source_path.path.file_name()?).unwrap());
3031            if new_path.as_rel_path() != source_path.path.as_ref() {
3032                let task = project.rename_entry(
3033                    entry_to_move,
3034                    (destination_worktree_id, new_path).into(),
3035                    cx,
3036                );
3037                cx.foreground_executor().spawn(task).detach_and_log_err(cx);
3038            }
3039
3040            project.worktree_id_for_entry(destination_entry, cx)
3041        });
3042
3043        if let Some(destination_worktree) = destination_worktree {
3044            self.expand_entry(destination_worktree, destination_entry, cx);
3045        }
3046    }
3047
3048    fn index_for_selection(&self, selection: SelectedEntry) -> Option<(usize, usize, usize)> {
3049        self.index_for_entry(selection.entry_id, selection.worktree_id)
3050    }
3051
3052    fn disjoint_entries(&self, cx: &App) -> BTreeSet<SelectedEntry> {
3053        let marked_entries = self.effective_entries();
3054        let mut sanitized_entries = BTreeSet::new();
3055        if marked_entries.is_empty() {
3056            return sanitized_entries;
3057        }
3058
3059        let project = self.project.read(cx);
3060        let marked_entries_by_worktree: HashMap<WorktreeId, Vec<SelectedEntry>> = marked_entries
3061            .into_iter()
3062            .filter(|entry| !project.entry_is_worktree_root(entry.entry_id, cx))
3063            .fold(HashMap::default(), |mut map, entry| {
3064                map.entry(entry.worktree_id).or_default().push(entry);
3065                map
3066            });
3067
3068        for (worktree_id, marked_entries) in marked_entries_by_worktree {
3069            if let Some(worktree) = project.worktree_for_id(worktree_id, cx) {
3070                let worktree = worktree.read(cx);
3071                let marked_dir_paths = marked_entries
3072                    .iter()
3073                    .filter_map(|entry| {
3074                        worktree.entry_for_id(entry.entry_id).and_then(|entry| {
3075                            if entry.is_dir() {
3076                                Some(entry.path.as_ref())
3077                            } else {
3078                                None
3079                            }
3080                        })
3081                    })
3082                    .collect::<BTreeSet<_>>();
3083
3084                sanitized_entries.extend(marked_entries.into_iter().filter(|entry| {
3085                    let Some(entry_info) = worktree.entry_for_id(entry.entry_id) else {
3086                        return false;
3087                    };
3088                    let entry_path = entry_info.path.as_ref();
3089                    let inside_marked_dir = marked_dir_paths.iter().any(|&marked_dir_path| {
3090                        entry_path != marked_dir_path && entry_path.starts_with(marked_dir_path)
3091                    });
3092                    !inside_marked_dir
3093                }));
3094            }
3095        }
3096
3097        sanitized_entries
3098    }
3099
3100    fn effective_entries(&self) -> BTreeSet<SelectedEntry> {
3101        if let Some(selection) = self.state.selection {
3102            let selection = SelectedEntry {
3103                entry_id: self.resolve_entry(selection.entry_id),
3104                worktree_id: selection.worktree_id,
3105            };
3106
3107            // Default to using just the selected item when nothing is marked.
3108            if self.marked_entries.is_empty() {
3109                return BTreeSet::from([selection]);
3110            }
3111
3112            // Allow operating on the selected item even when something else is marked,
3113            // making it easier to perform one-off actions without clearing a mark.
3114            if self.marked_entries.len() == 1 && !self.marked_entries.contains(&selection) {
3115                return BTreeSet::from([selection]);
3116            }
3117        }
3118
3119        // Return only marked entries since we've already handled special cases where
3120        // only selection should take precedence. At this point, marked entries may or
3121        // may not include the current selection, which is intentional.
3122        self.marked_entries
3123            .iter()
3124            .map(|entry| SelectedEntry {
3125                entry_id: self.resolve_entry(entry.entry_id),
3126                worktree_id: entry.worktree_id,
3127            })
3128            .collect::<BTreeSet<_>>()
3129    }
3130
3131    /// Finds the currently selected subentry for a given leaf entry id. If a given entry
3132    /// has no ancestors, the project entry ID that's passed in is returned as-is.
3133    fn resolve_entry(&self, id: ProjectEntryId) -> ProjectEntryId {
3134        self.state
3135            .ancestors
3136            .get(&id)
3137            .and_then(|ancestors| ancestors.active_ancestor())
3138            .unwrap_or(id)
3139    }
3140
3141    pub fn selected_entry<'a>(&self, cx: &'a App) -> Option<(&'a Worktree, &'a project::Entry)> {
3142        let (worktree, entry) = self.selected_entry_handle(cx)?;
3143        Some((worktree.read(cx), entry))
3144    }
3145
3146    /// Compared to selected_entry, this function resolves to the currently
3147    /// selected subentry if dir auto-folding is enabled.
3148    fn selected_sub_entry<'a>(
3149        &self,
3150        cx: &'a App,
3151    ) -> Option<(Entity<Worktree>, &'a project::Entry)> {
3152        let (worktree, mut entry) = self.selected_entry_handle(cx)?;
3153
3154        let resolved_id = self.resolve_entry(entry.id);
3155        if resolved_id != entry.id {
3156            let worktree = worktree.read(cx);
3157            entry = worktree.entry_for_id(resolved_id)?;
3158        }
3159        Some((worktree, entry))
3160    }
3161    fn selected_entry_handle<'a>(
3162        &self,
3163        cx: &'a App,
3164    ) -> Option<(Entity<Worktree>, &'a project::Entry)> {
3165        let selection = self.state.selection?;
3166        let project = self.project.read(cx);
3167        let worktree = project.worktree_for_id(selection.worktree_id, cx)?;
3168        let entry = worktree.read(cx).entry_for_id(selection.entry_id)?;
3169        Some((worktree, entry))
3170    }
3171
3172    fn expand_to_selection(&mut self, cx: &mut Context<Self>) -> Option<()> {
3173        let (worktree, entry) = self.selected_entry(cx)?;
3174        let expanded_dir_ids = self
3175            .state
3176            .expanded_dir_ids
3177            .entry(worktree.id())
3178            .or_default();
3179
3180        for path in entry.path.ancestors() {
3181            let Some(entry) = worktree.entry_for_path(path) else {
3182                continue;
3183            };
3184            if entry.is_dir()
3185                && let Err(idx) = expanded_dir_ids.binary_search(&entry.id)
3186            {
3187                expanded_dir_ids.insert(idx, entry.id);
3188            }
3189        }
3190
3191        Some(())
3192    }
3193
3194    fn create_new_git_entry(
3195        parent_entry: &Entry,
3196        git_summary: GitSummary,
3197        new_entry_kind: EntryKind,
3198    ) -> GitEntry {
3199        GitEntry {
3200            entry: Entry {
3201                id: NEW_ENTRY_ID,
3202                kind: new_entry_kind,
3203                path: parent_entry.path.join(RelPath::unix("\0").unwrap()),
3204                inode: 0,
3205                mtime: parent_entry.mtime,
3206                size: parent_entry.size,
3207                is_ignored: parent_entry.is_ignored,
3208                is_hidden: parent_entry.is_hidden,
3209                is_external: false,
3210                is_private: false,
3211                is_always_included: parent_entry.is_always_included,
3212                canonical_path: parent_entry.canonical_path.clone(),
3213                char_bag: parent_entry.char_bag,
3214                is_fifo: parent_entry.is_fifo,
3215            },
3216            git_summary,
3217        }
3218    }
3219
3220    fn update_visible_entries(
3221        &mut self,
3222        new_selected_entry: Option<(WorktreeId, ProjectEntryId)>,
3223        filename_editor_callback: Option<
3224            Box<dyn FnOnce(&mut Editor, &mut Window, &mut Context<Editor>) + 'static>,
3225        >,
3226        autoscroll: bool,
3227        window: &mut Window,
3228        cx: &mut Context<Self>,
3229    ) {
3230        let now = Instant::now();
3231        let settings = ProjectPanelSettings::get_global(cx);
3232        let auto_collapse_dirs = settings.auto_fold_dirs;
3233        let hide_gitignore = settings.hide_gitignore;
3234        let project = self.project.read(cx);
3235        let repo_snapshots = project.git_store().read(cx).repo_snapshots(cx);
3236
3237        let old_ancestors = self.state.ancestors.clone();
3238        let mut new_state = State::derive(&self.state);
3239        new_state.last_worktree_root_id = project
3240            .visible_worktrees(cx)
3241            .next_back()
3242            .and_then(|worktree| worktree.read(cx).root_entry())
3243            .map(|entry| entry.id);
3244        let mut max_width_item = None;
3245
3246        let visible_worktrees: Vec<_> = project
3247            .visible_worktrees(cx)
3248            .map(|worktree| worktree.read(cx).snapshot())
3249            .collect();
3250        let hide_root = settings.hide_root && visible_worktrees.len() == 1;
3251        let hide_hidden = settings.hide_hidden;
3252        self.update_visible_entries_task = cx.spawn_in(window, async move |this, cx| {
3253            let new_state = cx
3254                .background_spawn(async move {
3255                    for worktree_snapshot in visible_worktrees {
3256                        let worktree_id = worktree_snapshot.id();
3257
3258                        let expanded_dir_ids = match new_state.expanded_dir_ids.entry(worktree_id) {
3259                            hash_map::Entry::Occupied(e) => e.into_mut(),
3260                            hash_map::Entry::Vacant(e) => {
3261                                // The first time a worktree's root entry becomes available,
3262                                // mark that root entry as expanded.
3263                                if let Some(entry) = worktree_snapshot.root_entry() {
3264                                    e.insert(vec![entry.id]).as_slice()
3265                                } else {
3266                                    &[]
3267                                }
3268                            }
3269                        };
3270
3271                        let mut new_entry_parent_id = None;
3272                        let mut new_entry_kind = EntryKind::Dir;
3273                        if let Some(edit_state) = &new_state.edit_state
3274                            && edit_state.worktree_id == worktree_id
3275                            && edit_state.is_new_entry()
3276                        {
3277                            new_entry_parent_id = Some(edit_state.entry_id);
3278                            new_entry_kind = if edit_state.is_dir {
3279                                EntryKind::Dir
3280                            } else {
3281                                EntryKind::File
3282                            };
3283                        }
3284
3285                        let mut visible_worktree_entries = Vec::new();
3286                        let mut entry_iter =
3287                            GitTraversal::new(&repo_snapshots, worktree_snapshot.entries(true, 0));
3288                        let mut auto_folded_ancestors = vec![];
3289                        let worktree_abs_path = worktree_snapshot.abs_path();
3290                        while let Some(entry) = entry_iter.entry() {
3291                            if hide_root && Some(entry.entry) == worktree_snapshot.root_entry() {
3292                                if new_entry_parent_id == Some(entry.id) {
3293                                    visible_worktree_entries.push(Self::create_new_git_entry(
3294                                        entry.entry,
3295                                        entry.git_summary,
3296                                        new_entry_kind,
3297                                    ));
3298                                    new_entry_parent_id = None;
3299                                }
3300                                entry_iter.advance();
3301                                continue;
3302                            }
3303                            if auto_collapse_dirs && entry.kind.is_dir() {
3304                                auto_folded_ancestors.push(entry.id);
3305                                if !new_state.unfolded_dir_ids.contains(&entry.id)
3306                                    && let Some(root_path) = worktree_snapshot.root_entry()
3307                                {
3308                                    let mut child_entries =
3309                                        worktree_snapshot.child_entries(&entry.path);
3310                                    if let Some(child) = child_entries.next()
3311                                        && entry.path != root_path.path
3312                                        && child_entries.next().is_none()
3313                                        && child.kind.is_dir()
3314                                    {
3315                                        entry_iter.advance();
3316
3317                                        continue;
3318                                    }
3319                                }
3320                                let depth = old_ancestors
3321                                    .get(&entry.id)
3322                                    .map(|ancestor| ancestor.current_ancestor_depth)
3323                                    .unwrap_or_default()
3324                                    .min(auto_folded_ancestors.len());
3325                                if let Some(edit_state) = &mut new_state.edit_state
3326                                    && edit_state.entry_id == entry.id
3327                                {
3328                                    edit_state.depth = depth;
3329                                }
3330                                let mut ancestors = std::mem::take(&mut auto_folded_ancestors);
3331                                if ancestors.len() > 1 {
3332                                    ancestors.reverse();
3333                                    new_state.ancestors.insert(
3334                                        entry.id,
3335                                        FoldedAncestors {
3336                                            current_ancestor_depth: depth,
3337                                            ancestors,
3338                                        },
3339                                    );
3340                                }
3341                            }
3342                            auto_folded_ancestors.clear();
3343                            if (!hide_gitignore || !entry.is_ignored)
3344                                && (!hide_hidden || !entry.is_hidden)
3345                            {
3346                                visible_worktree_entries.push(entry.to_owned());
3347                            }
3348                            let precedes_new_entry = if let Some(new_entry_id) = new_entry_parent_id
3349                            {
3350                                entry.id == new_entry_id || {
3351                                    new_state.ancestors.get(&entry.id).is_some_and(|entries| {
3352                                        entries.ancestors.contains(&new_entry_id)
3353                                    })
3354                                }
3355                            } else {
3356                                false
3357                            };
3358                            if precedes_new_entry
3359                                && (!hide_gitignore || !entry.is_ignored)
3360                                && (!hide_hidden || !entry.is_hidden)
3361                            {
3362                                visible_worktree_entries.push(Self::create_new_git_entry(
3363                                    entry.entry,
3364                                    entry.git_summary,
3365                                    new_entry_kind,
3366                                ));
3367                            }
3368
3369                            let (depth, chars) = if Some(entry.entry)
3370                                == worktree_snapshot.root_entry()
3371                            {
3372                                let Some(path_name) = worktree_abs_path.file_name() else {
3373                                    continue;
3374                                };
3375                                let depth = 0;
3376                                (depth, path_name.to_string_lossy().chars().count())
3377                            } else if entry.is_file() {
3378                                let Some(path_name) = entry
3379                                    .path
3380                                    .file_name()
3381                                    .with_context(|| {
3382                                        format!("Non-root entry has no file name: {entry:?}")
3383                                    })
3384                                    .log_err()
3385                                else {
3386                                    continue;
3387                                };
3388                                let depth = entry.path.ancestors().count() - 1;
3389                                (depth, path_name.chars().count())
3390                            } else {
3391                                let path = new_state
3392                                    .ancestors
3393                                    .get(&entry.id)
3394                                    .and_then(|ancestors| {
3395                                        let outermost_ancestor = ancestors.ancestors.last()?;
3396                                        let root_folded_entry = worktree_snapshot
3397                                            .entry_for_id(*outermost_ancestor)?
3398                                            .path
3399                                            .as_ref();
3400                                        entry.path.strip_prefix(root_folded_entry).ok().and_then(
3401                                            |suffix| {
3402                                                Some(
3403                                                    RelPath::unix(root_folded_entry.file_name()?)
3404                                                        .unwrap()
3405                                                        .join(suffix),
3406                                                )
3407                                            },
3408                                        )
3409                                    })
3410                                    .or_else(|| {
3411                                        entry.path.file_name().map(|file_name| {
3412                                            RelPath::unix(file_name).unwrap().into()
3413                                        })
3414                                    })
3415                                    .unwrap_or_else(|| entry.path.clone());
3416                                let depth = path.components().count();
3417                                (depth, path.as_unix_str().chars().count())
3418                            };
3419                            let width_estimate =
3420                                item_width_estimate(depth, chars, entry.canonical_path.is_some());
3421
3422                            match max_width_item.as_mut() {
3423                                Some((id, worktree_id, width)) => {
3424                                    if *width < width_estimate {
3425                                        *id = entry.id;
3426                                        *worktree_id = worktree_snapshot.id();
3427                                        *width = width_estimate;
3428                                    }
3429                                }
3430                                None => {
3431                                    max_width_item =
3432                                        Some((entry.id, worktree_snapshot.id(), width_estimate))
3433                                }
3434                            }
3435
3436                            if expanded_dir_ids.binary_search(&entry.id).is_err()
3437                                && entry_iter.advance_to_sibling()
3438                            {
3439                                continue;
3440                            }
3441                            entry_iter.advance();
3442                        }
3443
3444                        par_sort_worktree_entries(&mut visible_worktree_entries);
3445                        new_state.visible_entries.push(VisibleEntriesForWorktree {
3446                            worktree_id,
3447                            entries: visible_worktree_entries,
3448                            index: OnceCell::new(),
3449                        })
3450                    }
3451                    if let Some((project_entry_id, worktree_id, _)) = max_width_item {
3452                        let mut visited_worktrees_length = 0;
3453                        let index = new_state
3454                            .visible_entries
3455                            .iter()
3456                            .find_map(|visible_entries| {
3457                                if worktree_id == visible_entries.worktree_id {
3458                                    visible_entries
3459                                        .entries
3460                                        .iter()
3461                                        .position(|entry| entry.id == project_entry_id)
3462                                } else {
3463                                    visited_worktrees_length += visible_entries.entries.len();
3464                                    None
3465                                }
3466                            });
3467                        if let Some(index) = index {
3468                            new_state.max_width_item_index = Some(visited_worktrees_length + index);
3469                        }
3470                    }
3471                    new_state
3472                })
3473                .await;
3474            this.update_in(cx, move |this, window, cx| {
3475                let current_selection = this.state.selection;
3476                this.state = new_state;
3477                if let Some((worktree_id, entry_id)) = new_selected_entry {
3478                    this.state.selection = Some(SelectedEntry {
3479                        worktree_id,
3480                        entry_id,
3481                    });
3482                } else {
3483                    this.state.selection = current_selection;
3484                }
3485                let elapsed = now.elapsed();
3486                if this.last_reported_update.elapsed() > Duration::from_secs(3600) {
3487                    telemetry::event!(
3488                        "Project Panel Updated",
3489                        elapsed_ms = elapsed.as_millis() as u64,
3490                        worktree_entries = this
3491                            .state
3492                            .visible_entries
3493                            .iter()
3494                            .map(|worktree| worktree.entries.len())
3495                            .sum::<usize>(),
3496                    )
3497                }
3498                if let Some(filename_editor_callback) = filename_editor_callback {
3499                    this.filename_editor.update(cx, move |editor, cx| {
3500                        filename_editor_callback(editor, window, cx)
3501                    });
3502                }
3503                if autoscroll {
3504                    this.autoscroll(cx);
3505                }
3506                cx.notify();
3507            })
3508            .ok();
3509        });
3510    }
3511
3512    fn expand_entry(
3513        &mut self,
3514        worktree_id: WorktreeId,
3515        entry_id: ProjectEntryId,
3516        cx: &mut Context<Self>,
3517    ) {
3518        self.project.update(cx, |project, cx| {
3519            if let Some((worktree, expanded_dir_ids)) = project
3520                .worktree_for_id(worktree_id, cx)
3521                .zip(self.state.expanded_dir_ids.get_mut(&worktree_id))
3522            {
3523                project.expand_entry(worktree_id, entry_id, cx);
3524                let worktree = worktree.read(cx);
3525
3526                if let Some(mut entry) = worktree.entry_for_id(entry_id) {
3527                    loop {
3528                        if let Err(ix) = expanded_dir_ids.binary_search(&entry.id) {
3529                            expanded_dir_ids.insert(ix, entry.id);
3530                        }
3531
3532                        if let Some(parent_entry) =
3533                            entry.path.parent().and_then(|p| worktree.entry_for_path(p))
3534                        {
3535                            entry = parent_entry;
3536                        } else {
3537                            break;
3538                        }
3539                    }
3540                }
3541            }
3542        });
3543    }
3544
3545    fn drop_external_files(
3546        &mut self,
3547        paths: &[PathBuf],
3548        entry_id: ProjectEntryId,
3549        window: &mut Window,
3550        cx: &mut Context<Self>,
3551    ) {
3552        let mut paths: Vec<Arc<Path>> = paths.iter().map(|path| Arc::from(path.clone())).collect();
3553
3554        let open_file_after_drop = paths.len() == 1 && paths[0].is_file();
3555
3556        let Some((target_directory, worktree, fs)) = maybe!({
3557            let project = self.project.read(cx);
3558            let fs = project.fs().clone();
3559            let worktree = project.worktree_for_entry(entry_id, cx)?;
3560            let entry = worktree.read(cx).entry_for_id(entry_id)?;
3561            let path = entry.path.clone();
3562            let target_directory = if entry.is_dir() {
3563                path
3564            } else {
3565                path.parent()?.into()
3566            };
3567            Some((target_directory, worktree, fs))
3568        }) else {
3569            return;
3570        };
3571
3572        let mut paths_to_replace = Vec::new();
3573        for path in &paths {
3574            if let Some(name) = path.file_name()
3575                && let Some(name) = name.to_str()
3576            {
3577                let target_path = target_directory.join(RelPath::unix(name).unwrap());
3578                if worktree.read(cx).entry_for_path(&target_path).is_some() {
3579                    paths_to_replace.push((name.to_string(), path.clone()));
3580                }
3581            }
3582        }
3583
3584        cx.spawn_in(window, async move |this, cx| {
3585            async move {
3586                for (filename, original_path) in &paths_to_replace {
3587                    let answer = cx.update(|window, cx| {
3588                        window
3589                            .prompt(
3590                                PromptLevel::Info,
3591                                format!("A file or folder with name {filename} already exists in the destination folder. Do you want to replace it?").as_str(),
3592                                None,
3593                                &["Replace", "Cancel"],
3594                                cx,
3595                            )
3596                    })?.await?;
3597
3598                    if answer == 1
3599                        && let Some(item_idx) = paths.iter().position(|p| p == original_path) {
3600                            paths.remove(item_idx);
3601                        }
3602                }
3603
3604                if paths.is_empty() {
3605                    return Ok(());
3606                }
3607
3608                let task = worktree.update( cx, |worktree, cx| {
3609                    worktree.copy_external_entries(target_directory, paths, fs, cx)
3610                })?;
3611
3612                let opened_entries = task.await.with_context(|| "failed to copy external paths")?;
3613                this.update(cx, |this, cx| {
3614                    if open_file_after_drop && !opened_entries.is_empty() {
3615                        let settings = ProjectPanelSettings::get_global(cx);
3616                        if settings.auto_open.should_open_on_drop() {
3617                            this.open_entry(opened_entries[0], true, false, cx);
3618                        }
3619                    }
3620                })
3621            }
3622            .log_err().await
3623        })
3624        .detach();
3625    }
3626
3627    fn refresh_drag_cursor_style(
3628        &self,
3629        modifiers: &Modifiers,
3630        window: &mut Window,
3631        cx: &mut Context<Self>,
3632    ) {
3633        if let Some(existing_cursor) = cx.active_drag_cursor_style() {
3634            let new_cursor = if Self::is_copy_modifier_set(modifiers) {
3635                CursorStyle::DragCopy
3636            } else {
3637                CursorStyle::PointingHand
3638            };
3639            if existing_cursor != new_cursor {
3640                cx.set_active_drag_cursor_style(new_cursor, window);
3641            }
3642        }
3643    }
3644
3645    fn is_copy_modifier_set(modifiers: &Modifiers) -> bool {
3646        cfg!(target_os = "macos") && modifiers.alt
3647            || cfg!(not(target_os = "macos")) && modifiers.control
3648    }
3649
3650    fn drag_onto(
3651        &mut self,
3652        selections: &DraggedSelection,
3653        target_entry_id: ProjectEntryId,
3654        is_file: bool,
3655        window: &mut Window,
3656        cx: &mut Context<Self>,
3657    ) {
3658        if Self::is_copy_modifier_set(&window.modifiers()) {
3659            let _ = maybe!({
3660                let project = self.project.read(cx);
3661                let target_worktree = project.worktree_for_entry(target_entry_id, cx)?;
3662                let worktree_id = target_worktree.read(cx).id();
3663                let target_entry = target_worktree
3664                    .read(cx)
3665                    .entry_for_id(target_entry_id)?
3666                    .clone();
3667
3668                let mut copy_tasks = Vec::new();
3669                let mut disambiguation_range = None;
3670                for selection in selections.items() {
3671                    let (new_path, new_disambiguation_range) = self.create_paste_path(
3672                        selection,
3673                        (target_worktree.clone(), &target_entry),
3674                        cx,
3675                    )?;
3676
3677                    let task = self.project.update(cx, |project, cx| {
3678                        project.copy_entry(selection.entry_id, (worktree_id, new_path).into(), cx)
3679                    });
3680                    copy_tasks.push(task);
3681                    disambiguation_range = new_disambiguation_range.or(disambiguation_range);
3682                }
3683
3684                let item_count = copy_tasks.len();
3685
3686                cx.spawn_in(window, async move |project_panel, cx| {
3687                    let mut last_succeed = None;
3688                    for task in copy_tasks.into_iter() {
3689                        if let Some(Some(entry)) = task.await.log_err() {
3690                            last_succeed = Some(entry.id);
3691                        }
3692                    }
3693                    // update selection
3694                    if let Some(entry_id) = last_succeed {
3695                        project_panel
3696                            .update_in(cx, |project_panel, window, cx| {
3697                                project_panel.state.selection = Some(SelectedEntry {
3698                                    worktree_id,
3699                                    entry_id,
3700                                });
3701
3702                                // if only one entry was dragged and it was disambiguated, open the rename editor
3703                                if item_count == 1 && disambiguation_range.is_some() {
3704                                    project_panel.rename_impl(disambiguation_range, window, cx);
3705                                }
3706                            })
3707                            .ok();
3708                    }
3709                })
3710                .detach();
3711                Some(())
3712            });
3713        } else {
3714            for selection in selections.items() {
3715                self.move_entry(selection.entry_id, target_entry_id, is_file, cx);
3716            }
3717        }
3718    }
3719
3720    fn index_for_entry(
3721        &self,
3722        entry_id: ProjectEntryId,
3723        worktree_id: WorktreeId,
3724    ) -> Option<(usize, usize, usize)> {
3725        let mut total_ix = 0;
3726        for (worktree_ix, visible) in self.state.visible_entries.iter().enumerate() {
3727            if worktree_id != visible.worktree_id {
3728                total_ix += visible.entries.len();
3729                continue;
3730            }
3731
3732            return visible
3733                .entries
3734                .iter()
3735                .enumerate()
3736                .find(|(_, entry)| entry.id == entry_id)
3737                .map(|(ix, _)| (worktree_ix, ix, total_ix + ix));
3738        }
3739        None
3740    }
3741
3742    fn entry_at_index(&self, index: usize) -> Option<(WorktreeId, GitEntryRef<'_>)> {
3743        let mut offset = 0;
3744        for worktree in &self.state.visible_entries {
3745            let current_len = worktree.entries.len();
3746            if index < offset + current_len {
3747                return worktree
3748                    .entries
3749                    .get(index - offset)
3750                    .map(|entry| (worktree.worktree_id, entry.to_ref()));
3751            }
3752            offset += current_len;
3753        }
3754        None
3755    }
3756
3757    fn iter_visible_entries(
3758        &self,
3759        range: Range<usize>,
3760        window: &mut Window,
3761        cx: &mut Context<ProjectPanel>,
3762        mut callback: impl FnMut(
3763            &Entry,
3764            usize,
3765            &HashSet<Arc<RelPath>>,
3766            &mut Window,
3767            &mut Context<ProjectPanel>,
3768        ),
3769    ) {
3770        let mut ix = 0;
3771        for visible in &self.state.visible_entries {
3772            if ix >= range.end {
3773                return;
3774            }
3775
3776            if ix + visible.entries.len() <= range.start {
3777                ix += visible.entries.len();
3778                continue;
3779            }
3780
3781            let end_ix = range.end.min(ix + visible.entries.len());
3782            let entry_range = range.start.saturating_sub(ix)..end_ix - ix;
3783            let entries = visible
3784                .index
3785                .get_or_init(|| visible.entries.iter().map(|e| e.path.clone()).collect());
3786            let base_index = ix + entry_range.start;
3787            for (i, entry) in visible.entries[entry_range].iter().enumerate() {
3788                let global_index = base_index + i;
3789                callback(entry, global_index, entries, window, cx);
3790            }
3791            ix = end_ix;
3792        }
3793    }
3794
3795    fn for_each_visible_entry(
3796        &self,
3797        range: Range<usize>,
3798        window: &mut Window,
3799        cx: &mut Context<ProjectPanel>,
3800        mut callback: impl FnMut(ProjectEntryId, EntryDetails, &mut Window, &mut Context<ProjectPanel>),
3801    ) {
3802        let mut ix = 0;
3803        for visible in &self.state.visible_entries {
3804            if ix >= range.end {
3805                return;
3806            }
3807
3808            if ix + visible.entries.len() <= range.start {
3809                ix += visible.entries.len();
3810                continue;
3811            }
3812
3813            let end_ix = range.end.min(ix + visible.entries.len());
3814            let git_status_setting = {
3815                let settings = ProjectPanelSettings::get_global(cx);
3816                settings.git_status
3817            };
3818            if let Some(worktree) = self
3819                .project
3820                .read(cx)
3821                .worktree_for_id(visible.worktree_id, cx)
3822            {
3823                let snapshot = worktree.read(cx).snapshot();
3824                let root_name = snapshot.root_name();
3825
3826                let entry_range = range.start.saturating_sub(ix)..end_ix - ix;
3827                let entries = visible
3828                    .index
3829                    .get_or_init(|| visible.entries.iter().map(|e| e.path.clone()).collect());
3830                for entry in visible.entries[entry_range].iter() {
3831                    let status = git_status_setting
3832                        .then_some(entry.git_summary)
3833                        .unwrap_or_default();
3834
3835                    let mut details = self.details_for_entry(
3836                        entry,
3837                        visible.worktree_id,
3838                        root_name,
3839                        entries,
3840                        status,
3841                        None,
3842                        window,
3843                        cx,
3844                    );
3845
3846                    if let Some(edit_state) = &self.state.edit_state {
3847                        let is_edited_entry = if edit_state.is_new_entry() {
3848                            entry.id == NEW_ENTRY_ID
3849                        } else {
3850                            entry.id == edit_state.entry_id
3851                                || self.state.ancestors.get(&entry.id).is_some_and(
3852                                    |auto_folded_dirs| {
3853                                        auto_folded_dirs.ancestors.contains(&edit_state.entry_id)
3854                                    },
3855                                )
3856                        };
3857
3858                        if is_edited_entry {
3859                            if let Some(processing_filename) = &edit_state.processing_filename {
3860                                details.is_processing = true;
3861                                if let Some(ancestors) = edit_state
3862                                    .leaf_entry_id
3863                                    .and_then(|entry| self.state.ancestors.get(&entry))
3864                                {
3865                                    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;
3866                                    let all_components = ancestors.ancestors.len();
3867
3868                                    let prefix_components = all_components - position;
3869                                    let suffix_components = position.checked_sub(1);
3870                                    let mut previous_components =
3871                                        Path::new(&details.filename).components();
3872                                    let mut new_path = previous_components
3873                                        .by_ref()
3874                                        .take(prefix_components)
3875                                        .collect::<PathBuf>();
3876                                    if let Some(last_component) =
3877                                        processing_filename.components().next_back()
3878                                    {
3879                                        new_path.push(last_component);
3880                                        previous_components.next();
3881                                    }
3882
3883                                    if suffix_components.is_some() {
3884                                        new_path.push(previous_components);
3885                                    }
3886                                    if let Some(str) = new_path.to_str() {
3887                                        details.filename.clear();
3888                                        details.filename.push_str(str);
3889                                    }
3890                                } else {
3891                                    details.filename.clear();
3892                                    details.filename.push_str(processing_filename.as_unix_str());
3893                                }
3894                            } else {
3895                                if edit_state.is_new_entry() {
3896                                    details.filename.clear();
3897                                }
3898                                details.is_editing = true;
3899                            }
3900                        }
3901                    }
3902
3903                    callback(entry.id, details, window, cx);
3904                }
3905            }
3906            ix = end_ix;
3907        }
3908    }
3909
3910    fn find_entry_in_worktree(
3911        &self,
3912        worktree_id: WorktreeId,
3913        reverse_search: bool,
3914        only_visible_entries: bool,
3915        predicate: impl Fn(GitEntryRef, WorktreeId) -> bool,
3916        cx: &mut Context<Self>,
3917    ) -> Option<GitEntry> {
3918        if only_visible_entries {
3919            let entries = self
3920                .state
3921                .visible_entries
3922                .iter()
3923                .find_map(|visible| {
3924                    if worktree_id == visible.worktree_id {
3925                        Some(&visible.entries)
3926                    } else {
3927                        None
3928                    }
3929                })?
3930                .clone();
3931
3932            return utils::ReversibleIterable::new(entries.iter(), reverse_search)
3933                .find(|ele| predicate(ele.to_ref(), worktree_id))
3934                .cloned();
3935        }
3936
3937        let repo_snapshots = self
3938            .project
3939            .read(cx)
3940            .git_store()
3941            .read(cx)
3942            .repo_snapshots(cx);
3943        let worktree = self.project.read(cx).worktree_for_id(worktree_id, cx)?;
3944        worktree.read_with(cx, |tree, _| {
3945            utils::ReversibleIterable::new(
3946                GitTraversal::new(&repo_snapshots, tree.entries(true, 0usize)),
3947                reverse_search,
3948            )
3949            .find_single_ended(|ele| predicate(*ele, worktree_id))
3950            .map(|ele| ele.to_owned())
3951        })
3952    }
3953
3954    fn find_entry(
3955        &self,
3956        start: Option<&SelectedEntry>,
3957        reverse_search: bool,
3958        predicate: impl Fn(GitEntryRef, WorktreeId) -> bool,
3959        cx: &mut Context<Self>,
3960    ) -> Option<SelectedEntry> {
3961        let mut worktree_ids: Vec<_> = self
3962            .state
3963            .visible_entries
3964            .iter()
3965            .map(|worktree| worktree.worktree_id)
3966            .collect();
3967        let repo_snapshots = self
3968            .project
3969            .read(cx)
3970            .git_store()
3971            .read(cx)
3972            .repo_snapshots(cx);
3973
3974        let mut last_found: Option<SelectedEntry> = None;
3975
3976        if let Some(start) = start {
3977            let worktree = self
3978                .project
3979                .read(cx)
3980                .worktree_for_id(start.worktree_id, cx)?
3981                .read(cx);
3982
3983            let search = {
3984                let entry = worktree.entry_for_id(start.entry_id)?;
3985                let root_entry = worktree.root_entry()?;
3986                let tree_id = worktree.id();
3987
3988                let mut first_iter = GitTraversal::new(
3989                    &repo_snapshots,
3990                    worktree.traverse_from_path(true, true, true, entry.path.as_ref()),
3991                );
3992
3993                if reverse_search {
3994                    first_iter.next();
3995                }
3996
3997                let first = first_iter
3998                    .enumerate()
3999                    .take_until(|(count, entry)| entry.entry == root_entry && *count != 0usize)
4000                    .map(|(_, entry)| entry)
4001                    .find(|ele| predicate(*ele, tree_id))
4002                    .map(|ele| ele.to_owned());
4003
4004                let second_iter =
4005                    GitTraversal::new(&repo_snapshots, worktree.entries(true, 0usize));
4006
4007                let second = if reverse_search {
4008                    second_iter
4009                        .take_until(|ele| ele.id == start.entry_id)
4010                        .filter(|ele| predicate(*ele, tree_id))
4011                        .last()
4012                        .map(|ele| ele.to_owned())
4013                } else {
4014                    second_iter
4015                        .take_while(|ele| ele.id != start.entry_id)
4016                        .filter(|ele| predicate(*ele, tree_id))
4017                        .last()
4018                        .map(|ele| ele.to_owned())
4019                };
4020
4021                if reverse_search {
4022                    Some((second, first))
4023                } else {
4024                    Some((first, second))
4025                }
4026            };
4027
4028            if let Some((first, second)) = search {
4029                let first = first.map(|entry| SelectedEntry {
4030                    worktree_id: start.worktree_id,
4031                    entry_id: entry.id,
4032                });
4033
4034                let second = second.map(|entry| SelectedEntry {
4035                    worktree_id: start.worktree_id,
4036                    entry_id: entry.id,
4037                });
4038
4039                if first.is_some() {
4040                    return first;
4041                }
4042                last_found = second;
4043
4044                let idx = worktree_ids
4045                    .iter()
4046                    .enumerate()
4047                    .find(|(_, ele)| **ele == start.worktree_id)
4048                    .map(|(idx, _)| idx);
4049
4050                if let Some(idx) = idx {
4051                    worktree_ids.rotate_left(idx + 1usize);
4052                    worktree_ids.pop();
4053                }
4054            }
4055        }
4056
4057        for tree_id in worktree_ids.into_iter() {
4058            if let Some(found) =
4059                self.find_entry_in_worktree(tree_id, reverse_search, false, &predicate, cx)
4060            {
4061                return Some(SelectedEntry {
4062                    worktree_id: tree_id,
4063                    entry_id: found.id,
4064                });
4065            }
4066        }
4067
4068        last_found
4069    }
4070
4071    fn find_visible_entry(
4072        &self,
4073        start: Option<&SelectedEntry>,
4074        reverse_search: bool,
4075        predicate: impl Fn(GitEntryRef, WorktreeId) -> bool,
4076        cx: &mut Context<Self>,
4077    ) -> Option<SelectedEntry> {
4078        let mut worktree_ids: Vec<_> = self
4079            .state
4080            .visible_entries
4081            .iter()
4082            .map(|worktree| worktree.worktree_id)
4083            .collect();
4084
4085        let mut last_found: Option<SelectedEntry> = None;
4086
4087        if let Some(start) = start {
4088            let entries = self
4089                .state
4090                .visible_entries
4091                .iter()
4092                .find(|worktree| worktree.worktree_id == start.worktree_id)
4093                .map(|worktree| &worktree.entries)?;
4094
4095            let mut start_idx = entries
4096                .iter()
4097                .enumerate()
4098                .find(|(_, ele)| ele.id == start.entry_id)
4099                .map(|(idx, _)| idx)?;
4100
4101            if reverse_search {
4102                start_idx = start_idx.saturating_add(1usize);
4103            }
4104
4105            let (left, right) = entries.split_at_checked(start_idx)?;
4106
4107            let (first_iter, second_iter) = if reverse_search {
4108                (
4109                    utils::ReversibleIterable::new(left.iter(), reverse_search),
4110                    utils::ReversibleIterable::new(right.iter(), reverse_search),
4111                )
4112            } else {
4113                (
4114                    utils::ReversibleIterable::new(right.iter(), reverse_search),
4115                    utils::ReversibleIterable::new(left.iter(), reverse_search),
4116                )
4117            };
4118
4119            let first_search = first_iter.find(|ele| predicate(ele.to_ref(), start.worktree_id));
4120            let second_search = second_iter.find(|ele| predicate(ele.to_ref(), start.worktree_id));
4121
4122            if first_search.is_some() {
4123                return first_search.map(|entry| SelectedEntry {
4124                    worktree_id: start.worktree_id,
4125                    entry_id: entry.id,
4126                });
4127            }
4128
4129            last_found = second_search.map(|entry| SelectedEntry {
4130                worktree_id: start.worktree_id,
4131                entry_id: entry.id,
4132            });
4133
4134            let idx = worktree_ids
4135                .iter()
4136                .enumerate()
4137                .find(|(_, ele)| **ele == start.worktree_id)
4138                .map(|(idx, _)| idx);
4139
4140            if let Some(idx) = idx {
4141                worktree_ids.rotate_left(idx + 1usize);
4142                worktree_ids.pop();
4143            }
4144        }
4145
4146        for tree_id in worktree_ids.into_iter() {
4147            if let Some(found) =
4148                self.find_entry_in_worktree(tree_id, reverse_search, true, &predicate, cx)
4149            {
4150                return Some(SelectedEntry {
4151                    worktree_id: tree_id,
4152                    entry_id: found.id,
4153                });
4154            }
4155        }
4156
4157        last_found
4158    }
4159
4160    fn calculate_depth_and_difference(
4161        entry: &Entry,
4162        visible_worktree_entries: &HashSet<Arc<RelPath>>,
4163    ) -> (usize, usize) {
4164        let (depth, difference) = entry
4165            .path
4166            .ancestors()
4167            .skip(1) // Skip the entry itself
4168            .find_map(|ancestor| {
4169                if let Some(parent_entry) = visible_worktree_entries.get(ancestor) {
4170                    let entry_path_components_count = entry.path.components().count();
4171                    let parent_path_components_count = parent_entry.components().count();
4172                    let difference = entry_path_components_count - parent_path_components_count;
4173                    let depth = parent_entry
4174                        .ancestors()
4175                        .skip(1)
4176                        .filter(|ancestor| visible_worktree_entries.contains(*ancestor))
4177                        .count();
4178                    Some((depth + 1, difference))
4179                } else {
4180                    None
4181                }
4182            })
4183            .unwrap_or_else(|| (0, entry.path.components().count()));
4184
4185        (depth, difference)
4186    }
4187
4188    fn highlight_entry_for_external_drag(
4189        &self,
4190        target_entry: &Entry,
4191        target_worktree: &Worktree,
4192    ) -> Option<ProjectEntryId> {
4193        // Always highlight directory or parent directory if it's file
4194        if target_entry.is_dir() {
4195            Some(target_entry.id)
4196        } else {
4197            target_entry
4198                .path
4199                .parent()
4200                .and_then(|parent_path| target_worktree.entry_for_path(parent_path))
4201                .map(|parent_entry| parent_entry.id)
4202        }
4203    }
4204
4205    fn highlight_entry_for_selection_drag(
4206        &self,
4207        target_entry: &Entry,
4208        target_worktree: &Worktree,
4209        drag_state: &DraggedSelection,
4210        cx: &Context<Self>,
4211    ) -> Option<ProjectEntryId> {
4212        let target_parent_path = target_entry.path.parent();
4213
4214        // In case of single item drag, we do not highlight existing
4215        // directory which item belongs too
4216        if drag_state.items().count() == 1
4217            && drag_state.active_selection.worktree_id == target_worktree.id()
4218        {
4219            let active_entry_path = self
4220                .project
4221                .read(cx)
4222                .path_for_entry(drag_state.active_selection.entry_id, cx)?;
4223
4224            if let Some(active_parent_path) = active_entry_path.path.parent() {
4225                // Do not highlight active entry parent
4226                if active_parent_path == target_entry.path.as_ref() {
4227                    return None;
4228                }
4229
4230                // Do not highlight active entry sibling files
4231                if Some(active_parent_path) == target_parent_path && target_entry.is_file() {
4232                    return None;
4233                }
4234            }
4235        }
4236
4237        // Always highlight directory or parent directory if it's file
4238        if target_entry.is_dir() {
4239            Some(target_entry.id)
4240        } else {
4241            target_parent_path
4242                .and_then(|parent_path| target_worktree.entry_for_path(parent_path))
4243                .map(|parent_entry| parent_entry.id)
4244        }
4245    }
4246
4247    fn should_highlight_background_for_selection_drag(
4248        &self,
4249        drag_state: &DraggedSelection,
4250        last_root_id: ProjectEntryId,
4251        cx: &App,
4252    ) -> bool {
4253        // Always highlight for multiple entries
4254        if drag_state.items().count() > 1 {
4255            return true;
4256        }
4257
4258        // Since root will always have empty relative path
4259        if let Some(entry_path) = self
4260            .project
4261            .read(cx)
4262            .path_for_entry(drag_state.active_selection.entry_id, cx)
4263        {
4264            if let Some(parent_path) = entry_path.path.parent() {
4265                if !parent_path.is_empty() {
4266                    return true;
4267                }
4268            }
4269        }
4270
4271        // If parent is empty, check if different worktree
4272        if let Some(last_root_worktree_id) = self
4273            .project
4274            .read(cx)
4275            .worktree_id_for_entry(last_root_id, cx)
4276        {
4277            if drag_state.active_selection.worktree_id != last_root_worktree_id {
4278                return true;
4279            }
4280        }
4281
4282        false
4283    }
4284
4285    fn render_entry(
4286        &self,
4287        entry_id: ProjectEntryId,
4288        details: EntryDetails,
4289        window: &mut Window,
4290        cx: &mut Context<Self>,
4291    ) -> Stateful<Div> {
4292        const GROUP_NAME: &str = "project_entry";
4293
4294        let kind = details.kind;
4295        let is_sticky = details.sticky.is_some();
4296        let sticky_index = details.sticky.as_ref().map(|this| this.sticky_index);
4297        let settings = ProjectPanelSettings::get_global(cx);
4298        let show_editor = details.is_editing && !details.is_processing;
4299
4300        let selection = SelectedEntry {
4301            worktree_id: details.worktree_id,
4302            entry_id,
4303        };
4304
4305        let is_marked = self.marked_entries.contains(&selection);
4306        let is_active = self
4307            .state
4308            .selection
4309            .is_some_and(|selection| selection.entry_id == entry_id);
4310
4311        let file_name = details.filename.clone();
4312
4313        let mut icon = details.icon.clone();
4314        if settings.file_icons && show_editor && details.kind.is_file() {
4315            let filename = self.filename_editor.read(cx).text(cx);
4316            if filename.len() > 2 {
4317                icon = FileIcons::get_icon(Path::new(&filename), cx);
4318            }
4319        }
4320
4321        let filename_text_color = details.filename_text_color;
4322        let diagnostic_severity = details.diagnostic_severity;
4323        let item_colors = get_item_color(is_sticky, cx);
4324
4325        let canonical_path = details
4326            .canonical_path
4327            .as_ref()
4328            .map(|f| f.to_string_lossy().into_owned());
4329        let path_style = self.project.read(cx).path_style(cx);
4330        let path = details.path.clone();
4331        let path_for_external_paths = path.clone();
4332        let path_for_dragged_selection = path.clone();
4333
4334        let depth = details.depth;
4335        let worktree_id = details.worktree_id;
4336        let dragged_selection = DraggedSelection {
4337            active_selection: SelectedEntry {
4338                worktree_id: selection.worktree_id,
4339                entry_id: self.resolve_entry(selection.entry_id),
4340            },
4341            marked_selections: Arc::from(self.marked_entries.clone()),
4342        };
4343
4344        let bg_color = if is_marked {
4345            item_colors.marked
4346        } else {
4347            item_colors.default
4348        };
4349
4350        let bg_hover_color = if is_marked {
4351            item_colors.marked
4352        } else {
4353            item_colors.hover
4354        };
4355
4356        let validation_color_and_message = if show_editor {
4357            match self
4358                .state
4359                .edit_state
4360                .as_ref()
4361                .map_or(ValidationState::None, |e| e.validation_state.clone())
4362            {
4363                ValidationState::Error(msg) => Some((Color::Error.color(cx), msg)),
4364                ValidationState::Warning(msg) => Some((Color::Warning.color(cx), msg)),
4365                ValidationState::None => None,
4366            }
4367        } else {
4368            None
4369        };
4370
4371        let border_color =
4372            if !self.mouse_down && is_active && self.focus_handle.contains_focused(window, cx) {
4373                match validation_color_and_message {
4374                    Some((color, _)) => color,
4375                    None => item_colors.focused,
4376                }
4377            } else {
4378                bg_color
4379            };
4380
4381        let border_hover_color =
4382            if !self.mouse_down && is_active && self.focus_handle.contains_focused(window, cx) {
4383                match validation_color_and_message {
4384                    Some((color, _)) => color,
4385                    None => item_colors.focused,
4386                }
4387            } else {
4388                bg_hover_color
4389            };
4390
4391        let folded_directory_drag_target = self.folded_directory_drag_target;
4392        let is_highlighted = {
4393            if let Some(highlight_entry_id) =
4394                self.drag_target_entry
4395                    .as_ref()
4396                    .and_then(|drag_target| match drag_target {
4397                        DragTarget::Entry {
4398                            highlight_entry_id, ..
4399                        } => Some(*highlight_entry_id),
4400                        DragTarget::Background => self.state.last_worktree_root_id,
4401                    })
4402            {
4403                // Highlight if same entry or it's children
4404                if entry_id == highlight_entry_id {
4405                    true
4406                } else {
4407                    maybe!({
4408                        let worktree = self.project.read(cx).worktree_for_id(worktree_id, cx)?;
4409                        let highlight_entry = worktree.read(cx).entry_for_id(highlight_entry_id)?;
4410                        Some(path.starts_with(&highlight_entry.path))
4411                    })
4412                    .unwrap_or(false)
4413                }
4414            } else {
4415                false
4416            }
4417        };
4418
4419        let id: ElementId = if is_sticky {
4420            SharedString::from(format!("project_panel_sticky_item_{}", entry_id.to_usize())).into()
4421        } else {
4422            (entry_id.to_proto() as usize).into()
4423        };
4424
4425        div()
4426            .id(id.clone())
4427            .relative()
4428            .group(GROUP_NAME)
4429            .cursor_pointer()
4430            .rounded_none()
4431            .bg(bg_color)
4432            .border_1()
4433            .border_r_2()
4434            .border_color(border_color)
4435            .hover(|style| style.bg(bg_hover_color).border_color(border_hover_color))
4436            .when(is_sticky, |this| {
4437                this.block_mouse_except_scroll()
4438            })
4439            .when(!is_sticky, |this| {
4440                this
4441                .when(is_highlighted && folded_directory_drag_target.is_none(), |this| this.border_color(transparent_white()).bg(item_colors.drag_over))
4442                .when(settings.drag_and_drop, |this| this
4443                .on_drag_move::<ExternalPaths>(cx.listener(
4444                    move |this, event: &DragMoveEvent<ExternalPaths>, _, cx| {
4445                        let is_current_target = this.drag_target_entry.as_ref()
4446                             .and_then(|entry| match entry {
4447                                 DragTarget::Entry { entry_id: target_id, .. } => Some(*target_id),
4448                                 DragTarget::Background { .. } => None,
4449                             }) == Some(entry_id);
4450
4451                        if !event.bounds.contains(&event.event.position) {
4452                            // Entry responsible for setting drag target is also responsible to
4453                            // clear it up after drag is out of bounds
4454                            if is_current_target {
4455                                this.drag_target_entry = None;
4456                            }
4457                            return;
4458                        }
4459
4460                        if is_current_target {
4461                            return;
4462                        }
4463
4464                        this.marked_entries.clear();
4465
4466                        let Some((entry_id, highlight_entry_id)) = maybe!({
4467                            let target_worktree = this.project.read(cx).worktree_for_id(selection.worktree_id, cx)?.read(cx);
4468                            let target_entry = target_worktree.entry_for_path(&path_for_external_paths)?;
4469                            let highlight_entry_id = this.highlight_entry_for_external_drag(target_entry, target_worktree)?;
4470                            Some((target_entry.id, highlight_entry_id))
4471                        }) else {
4472                            return;
4473                        };
4474
4475                        this.drag_target_entry = Some(DragTarget::Entry {
4476                            entry_id,
4477                            highlight_entry_id,
4478                        });
4479
4480                    },
4481                ))
4482                .on_drop(cx.listener(
4483                    move |this, external_paths: &ExternalPaths, window, cx| {
4484                        this.drag_target_entry = None;
4485                        this.hover_scroll_task.take();
4486                        this.drop_external_files(external_paths.paths(), entry_id, window, cx);
4487                        cx.stop_propagation();
4488                    },
4489                ))
4490                .on_drag_move::<DraggedSelection>(cx.listener(
4491                    move |this, event: &DragMoveEvent<DraggedSelection>, window, cx| {
4492                        let is_current_target = this.drag_target_entry.as_ref()
4493                             .and_then(|entry| match entry {
4494                                 DragTarget::Entry { entry_id: target_id, .. } => Some(*target_id),
4495                                 DragTarget::Background { .. } => None,
4496                             }) == Some(entry_id);
4497
4498                        if !event.bounds.contains(&event.event.position) {
4499                            // Entry responsible for setting drag target is also responsible to
4500                            // clear it up after drag is out of bounds
4501                            if is_current_target {
4502                                this.drag_target_entry = None;
4503                            }
4504                            return;
4505                        }
4506
4507                        if is_current_target {
4508                            return;
4509                        }
4510
4511                        let drag_state = event.drag(cx);
4512
4513                        if drag_state.items().count() == 1 {
4514                            this.marked_entries.clear();
4515                            this.marked_entries.push(drag_state.active_selection);
4516                        }
4517
4518                        let Some((entry_id, highlight_entry_id)) = maybe!({
4519                            let target_worktree = this.project.read(cx).worktree_for_id(selection.worktree_id, cx)?.read(cx);
4520                            let target_entry = target_worktree.entry_for_path(&path_for_dragged_selection)?;
4521                            let highlight_entry_id = this.highlight_entry_for_selection_drag(target_entry, target_worktree, drag_state, cx)?;
4522                            Some((target_entry.id, highlight_entry_id))
4523                        }) else {
4524                            return;
4525                        };
4526
4527                        this.drag_target_entry = Some(DragTarget::Entry {
4528                            entry_id,
4529                            highlight_entry_id,
4530                        });
4531
4532                        this.hover_expand_task.take();
4533
4534                        if !kind.is_dir()
4535                            || this
4536                                .state
4537                                .expanded_dir_ids
4538                                .get(&details.worktree_id)
4539                                .is_some_and(|ids| ids.binary_search(&entry_id).is_ok())
4540                        {
4541                            return;
4542                        }
4543
4544                        let bounds = event.bounds;
4545                        this.hover_expand_task =
4546                            Some(cx.spawn_in(window, async move |this, cx| {
4547                                cx.background_executor()
4548                                    .timer(Duration::from_millis(500))
4549                                    .await;
4550                                this.update_in(cx, |this, window, cx| {
4551                                    this.hover_expand_task.take();
4552                                    if this.drag_target_entry.as_ref().and_then(|entry| match entry {
4553                                        DragTarget::Entry { entry_id: target_id, .. } => Some(*target_id),
4554                                        DragTarget::Background { .. } => None,
4555                                    }) == Some(entry_id)
4556                                        && bounds.contains(&window.mouse_position())
4557                                    {
4558                                        this.expand_entry(worktree_id, entry_id, cx);
4559                                        this.update_visible_entries(
4560                                            Some((worktree_id, entry_id)),
4561                                            None,
4562                                            false,
4563                                            window,
4564                                            cx,
4565                                        );
4566                                        cx.notify();
4567                                    }
4568                                })
4569                                .ok();
4570                            }));
4571                    },
4572                ))
4573                .on_drag(
4574                    dragged_selection,
4575                    {
4576                        let active_component = self.state.ancestors.get(&entry_id).and_then(|ancestors| ancestors.active_component(&details.filename));
4577                        move |selection, click_offset, _window, cx| {
4578                            let filename = active_component.as_ref().unwrap_or_else(|| &details.filename);
4579                            cx.new(|_| DraggedProjectEntryView {
4580                                icon: details.icon.clone(),
4581                                filename: filename.clone(),
4582                                click_offset,
4583                                selection: selection.active_selection,
4584                                selections: selection.marked_selections.clone(),
4585                            })
4586                        }
4587                    }
4588                )
4589                .on_drop(
4590                    cx.listener(move |this, selections: &DraggedSelection, window, cx| {
4591                        this.drag_target_entry = None;
4592                        this.hover_scroll_task.take();
4593                        this.hover_expand_task.take();
4594                        if folded_directory_drag_target.is_some() {
4595                            return;
4596                        }
4597                        this.drag_onto(selections, entry_id, kind.is_file(), window, cx);
4598                    }),
4599                ))
4600            })
4601            .on_mouse_down(
4602                MouseButton::Left,
4603                cx.listener(move |this, _, _, cx| {
4604                    this.mouse_down = true;
4605                    cx.propagate();
4606                }),
4607            )
4608            .on_click(
4609                cx.listener(move |project_panel, event: &gpui::ClickEvent, window, cx| {
4610                    if event.is_right_click() || event.first_focus()
4611                        || show_editor
4612                    {
4613                        return;
4614                    }
4615                    if event.standard_click() {
4616                        project_panel.mouse_down = false;
4617                    }
4618                    cx.stop_propagation();
4619
4620                    if let Some(selection) = project_panel.state.selection.filter(|_| event.modifiers().shift) {
4621                        let current_selection = project_panel.index_for_selection(selection);
4622                        let clicked_entry = SelectedEntry {
4623                            entry_id,
4624                            worktree_id,
4625                        };
4626                        let target_selection = project_panel.index_for_selection(clicked_entry);
4627                        if let Some(((_, _, source_index), (_, _, target_index))) =
4628                            current_selection.zip(target_selection)
4629                        {
4630                            let range_start = source_index.min(target_index);
4631                            let range_end = source_index.max(target_index) + 1;
4632                            let mut new_selections = Vec::new();
4633                            project_panel.for_each_visible_entry(
4634                                range_start..range_end,
4635                                window,
4636                                cx,
4637                                |entry_id, details, _, _| {
4638                                    new_selections.push(SelectedEntry {
4639                                        entry_id,
4640                                        worktree_id: details.worktree_id,
4641                                    });
4642                                },
4643                            );
4644
4645                            for selection in &new_selections {
4646                                if !project_panel.marked_entries.contains(selection) {
4647                                    project_panel.marked_entries.push(*selection);
4648                                }
4649                            }
4650
4651                            project_panel.state.selection = Some(clicked_entry);
4652                            if !project_panel.marked_entries.contains(&clicked_entry) {
4653                                project_panel.marked_entries.push(clicked_entry);
4654                            }
4655                        }
4656                    } else if event.modifiers().secondary() {
4657                        if event.click_count() > 1 {
4658                            project_panel.split_entry(entry_id, false, None, cx);
4659                        } else {
4660                            project_panel.state.selection = Some(selection);
4661                            if let Some(position) = project_panel.marked_entries.iter().position(|e| *e == selection) {
4662                                project_panel.marked_entries.remove(position);
4663                            } else {
4664                                project_panel.marked_entries.push(selection);
4665                            }
4666                        }
4667                    } else if kind.is_dir() {
4668                        project_panel.marked_entries.clear();
4669                        if is_sticky
4670                            && let Some((_, _, index)) = project_panel.index_for_entry(entry_id, worktree_id) {
4671                                project_panel.scroll_handle.scroll_to_item_strict_with_offset(index, ScrollStrategy::Top, sticky_index.unwrap_or(0));
4672                                cx.notify();
4673                                // move down by 1px so that clicked item
4674                                // don't count as sticky anymore
4675                                cx.on_next_frame(window, |_, window, cx| {
4676                                    cx.on_next_frame(window, |this, _, cx| {
4677                                        let mut offset = this.scroll_handle.offset();
4678                                        offset.y += px(1.);
4679                                        this.scroll_handle.set_offset(offset);
4680                                        cx.notify();
4681                                    });
4682                                });
4683                                return;
4684                            }
4685                        if event.modifiers().alt {
4686                            project_panel.toggle_expand_all(entry_id, window, cx);
4687                        } else {
4688                            project_panel.toggle_expanded(entry_id, window, cx);
4689                        }
4690                    } else {
4691                        let preview_tabs_enabled = PreviewTabsSettings::get_global(cx).enabled;
4692                        let click_count = event.click_count();
4693                        let focus_opened_item = !preview_tabs_enabled || click_count > 1;
4694                        let allow_preview = preview_tabs_enabled && click_count == 1;
4695                        project_panel.open_entry(entry_id, focus_opened_item, allow_preview, cx);
4696                    }
4697                }),
4698            )
4699            .child(
4700                ListItem::new(id)
4701                    .indent_level(depth)
4702                    .indent_step_size(px(settings.indent_size))
4703                    .spacing(match settings.entry_spacing {
4704                        ProjectPanelEntrySpacing::Comfortable => ListItemSpacing::Dense,
4705                        ProjectPanelEntrySpacing::Standard => {
4706                            ListItemSpacing::ExtraDense
4707                        }
4708                    })
4709                    .selectable(false)
4710                    .when_some(canonical_path, |this, path| {
4711                        this.end_slot::<AnyElement>(
4712                            div()
4713                                .id("symlink_icon")
4714                                .pr_3()
4715                                .tooltip(move |_window, cx| {
4716                                    Tooltip::with_meta(
4717                                        path.to_string(),
4718                                        None,
4719                                        "Symbolic Link",
4720                                        cx,
4721                                    )
4722                                })
4723                                .child(
4724                                    Icon::new(IconName::ArrowUpRight)
4725                                        .size(IconSize::Indicator)
4726                                        .color(filename_text_color),
4727                                )
4728                                .into_any_element(),
4729                        )
4730                    })
4731                    .child(if let Some(icon) = &icon {
4732                        if let Some((_, decoration_color)) =
4733                            entry_diagnostic_aware_icon_decoration_and_color(diagnostic_severity)
4734                        {
4735                            let is_warning = diagnostic_severity
4736                                .map(|severity| matches!(severity, DiagnosticSeverity::WARNING))
4737                                .unwrap_or(false);
4738                            div().child(
4739                                DecoratedIcon::new(
4740                                    Icon::from_path(icon.clone()).color(Color::Muted),
4741                                    Some(
4742                                        IconDecoration::new(
4743                                            if kind.is_file() {
4744                                                if is_warning {
4745                                                    IconDecorationKind::Triangle
4746                                                } else {
4747                                                    IconDecorationKind::X
4748                                                }
4749                                            } else {
4750                                                IconDecorationKind::Dot
4751                                            },
4752                                            bg_color,
4753                                            cx,
4754                                        )
4755                                        .group_name(Some(GROUP_NAME.into()))
4756                                        .knockout_hover_color(bg_hover_color)
4757                                        .color(decoration_color.color(cx))
4758                                        .position(Point {
4759                                            x: px(-2.),
4760                                            y: px(-2.),
4761                                        }),
4762                                    ),
4763                                )
4764                                .into_any_element(),
4765                            )
4766                        } else {
4767                            h_flex().child(Icon::from_path(icon.to_string()).color(Color::Muted))
4768                        }
4769                    } else if let Some((icon_name, color)) =
4770                        entry_diagnostic_aware_icon_name_and_color(diagnostic_severity)
4771                    {
4772                        h_flex()
4773                            .size(IconSize::default().rems())
4774                            .child(Icon::new(icon_name).color(color).size(IconSize::Small))
4775                    } else {
4776                        h_flex()
4777                            .size(IconSize::default().rems())
4778                            .invisible()
4779                            .flex_none()
4780                    })
4781                    .child(
4782                        if let (Some(editor), true) = (Some(&self.filename_editor), show_editor) {
4783                            h_flex().h_6().w_full().child(editor.clone())
4784                        } else {
4785                            h_flex().h_6().map(|mut this| {
4786                                if let Some(folded_ancestors) = self.state.ancestors.get(&entry_id) {
4787                                    let components = Path::new(&file_name)
4788                                        .components()
4789                                        .map(|comp| comp.as_os_str().to_string_lossy().into_owned())
4790                                        .collect::<Vec<_>>();
4791                                    let active_index = folded_ancestors.active_index();
4792                                    let components_len = components.len();
4793                                    let delimiter = SharedString::new(path_style.separator());
4794                                    for (index, component) in components.iter().enumerate() {
4795                                        if index != 0 {
4796                                                let delimiter_target_index = index - 1;
4797                                                let target_entry_id = folded_ancestors.ancestors.get(components_len - 1 - delimiter_target_index).cloned();
4798                                                this = this.child(
4799                                                    div()
4800                                                    .when(!is_sticky, |div| {
4801                                                        div
4802                                                            .when(settings.drag_and_drop, |div| div
4803                                                            .on_drop(cx.listener(move |this, selections: &DraggedSelection, window, cx| {
4804                                                            this.hover_scroll_task.take();
4805                                                            this.drag_target_entry = None;
4806                                                            this.folded_directory_drag_target = None;
4807                                                            if let Some(target_entry_id) = target_entry_id {
4808                                                                this.drag_onto(selections, target_entry_id, kind.is_file(), window, cx);
4809                                                            }
4810                                                        }))
4811                                                        .on_drag_move(cx.listener(
4812                                                            move |this, event: &DragMoveEvent<DraggedSelection>, _, _| {
4813                                                                if event.bounds.contains(&event.event.position) {
4814                                                                    this.folded_directory_drag_target = Some(
4815                                                                        FoldedDirectoryDragTarget {
4816                                                                            entry_id,
4817                                                                            index: delimiter_target_index,
4818                                                                            is_delimiter_target: true,
4819                                                                        }
4820                                                                    );
4821                                                                } else {
4822                                                                    let is_current_target = this.folded_directory_drag_target
4823                                                                        .is_some_and(|target|
4824                                                                            target.entry_id == entry_id &&
4825                                                                            target.index == delimiter_target_index &&
4826                                                                            target.is_delimiter_target
4827                                                                        );
4828                                                                    if is_current_target {
4829                                                                        this.folded_directory_drag_target = None;
4830                                                                    }
4831                                                                }
4832
4833                                                            },
4834                                                        )))
4835                                                    })
4836                                                    .child(
4837                                                        Label::new(delimiter.clone())
4838                                                            .single_line()
4839                                                            .color(filename_text_color)
4840                                                    )
4841                                                );
4842                                        }
4843                                        let id = SharedString::from(format!(
4844                                            "project_panel_path_component_{}_{index}",
4845                                            entry_id.to_usize()
4846                                        ));
4847                                        let label = div()
4848                                            .id(id)
4849                                            .when(!is_sticky,| div| {
4850                                                div
4851                                                .when(index != components_len - 1, |div|{
4852                                                    let target_entry_id = folded_ancestors.ancestors.get(components_len - 1 - index).cloned();
4853                                                    div
4854                                                    .when(settings.drag_and_drop, |div| div
4855                                                    .on_drag_move(cx.listener(
4856                                                        move |this, event: &DragMoveEvent<DraggedSelection>, _, _| {
4857                                                        if event.bounds.contains(&event.event.position) {
4858                                                                this.folded_directory_drag_target = Some(
4859                                                                    FoldedDirectoryDragTarget {
4860                                                                        entry_id,
4861                                                                        index,
4862                                                                        is_delimiter_target: false,
4863                                                                    }
4864                                                                );
4865                                                            } else {
4866                                                                let is_current_target = this.folded_directory_drag_target
4867                                                                    .as_ref()
4868                                                                    .is_some_and(|target|
4869                                                                        target.entry_id == entry_id &&
4870                                                                        target.index == index &&
4871                                                                        !target.is_delimiter_target
4872                                                                    );
4873                                                                if is_current_target {
4874                                                                    this.folded_directory_drag_target = None;
4875                                                                }
4876                                                            }
4877                                                        },
4878                                                    ))
4879                                                    .on_drop(cx.listener(move |this, selections: &DraggedSelection, window,cx| {
4880                                                        this.hover_scroll_task.take();
4881                                                        this.drag_target_entry = None;
4882                                                        this.folded_directory_drag_target = None;
4883                                                        if let Some(target_entry_id) = target_entry_id {
4884                                                            this.drag_onto(selections, target_entry_id, kind.is_file(), window, cx);
4885                                                        }
4886                                                    }))
4887                                                    .when(folded_directory_drag_target.is_some_and(|target|
4888                                                        target.entry_id == entry_id &&
4889                                                        target.index == index
4890                                                    ), |this| {
4891                                                        this.bg(item_colors.drag_over)
4892                                                    }))
4893                                                })
4894                                            })
4895                                            .on_mouse_down(
4896                                                MouseButton::Left,
4897                                                cx.listener(move |this, _, _, cx| {
4898                                                    if index != active_index
4899                                                        && let Some(folds) =
4900                                                            this.state.ancestors.get_mut(&entry_id)
4901                                                        {
4902                                                            folds.current_ancestor_depth =
4903                                                                components_len - 1 - index;
4904                                                            cx.notify();
4905                                                        }
4906                                                }),
4907                                            )
4908                                            .child(
4909                                                Label::new(component)
4910                                                    .single_line()
4911                                                    .color(filename_text_color)
4912                                                    .when(
4913                                                        index == active_index
4914                                                            && (is_active || is_marked),
4915                                                        |this| this.underline(),
4916                                                    ),
4917                                            );
4918
4919                                        this = this.child(label);
4920                                    }
4921
4922                                    this
4923                                } else {
4924                                    this.child(
4925                                        Label::new(file_name)
4926                                            .single_line()
4927                                            .color(filename_text_color),
4928                                    )
4929                                }
4930                            })
4931                        },
4932                    )
4933                    .on_secondary_mouse_down(cx.listener(
4934                        move |this, event: &MouseDownEvent, window, cx| {
4935                            // Stop propagation to prevent the catch-all context menu for the project
4936                            // panel from being deployed.
4937                            cx.stop_propagation();
4938                            // Some context menu actions apply to all marked entries. If the user
4939                            // right-clicks on an entry that is not marked, they may not realize the
4940                            // action applies to multiple entries. To avoid inadvertent changes, all
4941                            // entries are unmarked.
4942                            if !this.marked_entries.contains(&selection) {
4943                                this.marked_entries.clear();
4944                            }
4945                            this.deploy_context_menu(event.position, entry_id, window, cx);
4946                        },
4947                    ))
4948                    .overflow_x(),
4949            )
4950            .when_some(
4951                validation_color_and_message,
4952                |this, (color, message)| {
4953                    this
4954                    .relative()
4955                    .child(
4956                        deferred(
4957                            div()
4958                            .occlude()
4959                            .absolute()
4960                            .top_full()
4961                            .left(px(-1.)) // Used px over rem so that it doesn't change with font size
4962                            .right(px(-0.5))
4963                            .py_1()
4964                            .px_2()
4965                            .border_1()
4966                            .border_color(color)
4967                            .bg(cx.theme().colors().background)
4968                            .child(
4969                                Label::new(message)
4970                                .color(Color::from(color))
4971                                .size(LabelSize::Small)
4972                            )
4973                        )
4974                    )
4975                }
4976            )
4977    }
4978
4979    fn details_for_entry(
4980        &self,
4981        entry: &Entry,
4982        worktree_id: WorktreeId,
4983        root_name: &RelPath,
4984        entries_paths: &HashSet<Arc<RelPath>>,
4985        git_status: GitSummary,
4986        sticky: Option<StickyDetails>,
4987        _window: &mut Window,
4988        cx: &mut Context<Self>,
4989    ) -> EntryDetails {
4990        let (show_file_icons, show_folder_icons) = {
4991            let settings = ProjectPanelSettings::get_global(cx);
4992            (settings.file_icons, settings.folder_icons)
4993        };
4994
4995        let expanded_entry_ids = self
4996            .state
4997            .expanded_dir_ids
4998            .get(&worktree_id)
4999            .map(Vec::as_slice)
5000            .unwrap_or(&[]);
5001        let is_expanded = expanded_entry_ids.binary_search(&entry.id).is_ok();
5002
5003        let icon = match entry.kind {
5004            EntryKind::File => {
5005                if show_file_icons {
5006                    FileIcons::get_icon(entry.path.as_std_path(), cx)
5007                } else {
5008                    None
5009                }
5010            }
5011            _ => {
5012                if show_folder_icons {
5013                    FileIcons::get_folder_icon(is_expanded, entry.path.as_std_path(), cx)
5014                } else {
5015                    FileIcons::get_chevron_icon(is_expanded, cx)
5016                }
5017            }
5018        };
5019
5020        let path_style = self.project.read(cx).path_style(cx);
5021        let (depth, difference) =
5022            ProjectPanel::calculate_depth_and_difference(entry, entries_paths);
5023
5024        let filename = if difference > 1 {
5025            entry
5026                .path
5027                .last_n_components(difference)
5028                .map_or(String::new(), |suffix| {
5029                    suffix.display(path_style).to_string()
5030                })
5031        } else {
5032            entry
5033                .path
5034                .file_name()
5035                .map(|name| name.to_string())
5036                .unwrap_or_else(|| root_name.as_unix_str().to_string())
5037        };
5038
5039        let selection = SelectedEntry {
5040            worktree_id,
5041            entry_id: entry.id,
5042        };
5043        let is_marked = self.marked_entries.contains(&selection);
5044        let is_selected = self.state.selection == Some(selection);
5045
5046        let diagnostic_severity = self
5047            .diagnostics
5048            .get(&(worktree_id, entry.path.clone()))
5049            .cloned();
5050
5051        let filename_text_color =
5052            entry_git_aware_label_color(git_status, entry.is_ignored, is_marked);
5053
5054        let is_cut = self
5055            .clipboard
5056            .as_ref()
5057            .is_some_and(|e| e.is_cut() && e.items().contains(&selection));
5058
5059        EntryDetails {
5060            filename,
5061            icon,
5062            path: entry.path.clone(),
5063            depth,
5064            kind: entry.kind,
5065            is_ignored: entry.is_ignored,
5066            is_expanded,
5067            is_selected,
5068            is_marked,
5069            is_editing: false,
5070            is_processing: false,
5071            is_cut,
5072            sticky,
5073            filename_text_color,
5074            diagnostic_severity,
5075            git_status,
5076            is_private: entry.is_private,
5077            worktree_id,
5078            canonical_path: entry.canonical_path.clone(),
5079        }
5080    }
5081
5082    fn dispatch_context(&self, window: &Window, cx: &Context<Self>) -> KeyContext {
5083        let mut dispatch_context = KeyContext::new_with_defaults();
5084        dispatch_context.add("ProjectPanel");
5085        dispatch_context.add("menu");
5086
5087        let identifier = if self.filename_editor.focus_handle(cx).is_focused(window) {
5088            "editing"
5089        } else {
5090            "not_editing"
5091        };
5092
5093        dispatch_context.add(identifier);
5094        dispatch_context
5095    }
5096
5097    fn reveal_entry(
5098        &mut self,
5099        project: Entity<Project>,
5100        entry_id: ProjectEntryId,
5101        skip_ignored: bool,
5102        window: &mut Window,
5103        cx: &mut Context<Self>,
5104    ) -> Result<()> {
5105        let worktree = project
5106            .read(cx)
5107            .worktree_for_entry(entry_id, cx)
5108            .context("can't reveal a non-existent entry in the project panel")?;
5109        let worktree = worktree.read(cx);
5110        if skip_ignored
5111            && worktree
5112                .entry_for_id(entry_id)
5113                .is_none_or(|entry| entry.is_ignored && !entry.is_always_included)
5114        {
5115            anyhow::bail!("can't reveal an ignored entry in the project panel");
5116        }
5117        let is_active_item_file_diff_view = self
5118            .workspace
5119            .upgrade()
5120            .and_then(|ws| ws.read(cx).active_item(cx))
5121            .map(|item| item.act_as_type(TypeId::of::<FileDiffView>(), cx).is_some())
5122            .unwrap_or(false);
5123        if is_active_item_file_diff_view {
5124            return Ok(());
5125        }
5126
5127        let worktree_id = worktree.id();
5128        self.expand_entry(worktree_id, entry_id, cx);
5129        self.update_visible_entries(Some((worktree_id, entry_id)), None, true, window, cx);
5130        self.marked_entries.clear();
5131        self.marked_entries.push(SelectedEntry {
5132            worktree_id,
5133            entry_id,
5134        });
5135        cx.notify();
5136        Ok(())
5137    }
5138
5139    fn find_active_indent_guide(
5140        &self,
5141        indent_guides: &[IndentGuideLayout],
5142        cx: &App,
5143    ) -> Option<usize> {
5144        let (worktree, entry) = self.selected_entry(cx)?;
5145
5146        // Find the parent entry of the indent guide, this will either be the
5147        // expanded folder we have selected, or the parent of the currently
5148        // selected file/collapsed directory
5149        let mut entry = entry;
5150        loop {
5151            let is_expanded_dir = entry.is_dir()
5152                && self
5153                    .state
5154                    .expanded_dir_ids
5155                    .get(&worktree.id())
5156                    .map(|ids| ids.binary_search(&entry.id).is_ok())
5157                    .unwrap_or(false);
5158            if is_expanded_dir {
5159                break;
5160            }
5161            entry = worktree.entry_for_path(&entry.path.parent()?)?;
5162        }
5163
5164        let (active_indent_range, depth) = {
5165            let (worktree_ix, child_offset, ix) = self.index_for_entry(entry.id, worktree.id())?;
5166            let child_paths = &self.state.visible_entries[worktree_ix].entries;
5167            let mut child_count = 0;
5168            let depth = entry.path.ancestors().count();
5169            while let Some(entry) = child_paths.get(child_offset + child_count + 1) {
5170                if entry.path.ancestors().count() <= depth {
5171                    break;
5172                }
5173                child_count += 1;
5174            }
5175
5176            let start = ix + 1;
5177            let end = start + child_count;
5178
5179            let visible_worktree = &self.state.visible_entries[worktree_ix];
5180            let visible_worktree_entries = visible_worktree.index.get_or_init(|| {
5181                visible_worktree
5182                    .entries
5183                    .iter()
5184                    .map(|e| e.path.clone())
5185                    .collect()
5186            });
5187
5188            // Calculate the actual depth of the entry, taking into account that directories can be auto-folded.
5189            let (depth, _) = Self::calculate_depth_and_difference(entry, visible_worktree_entries);
5190            (start..end, depth)
5191        };
5192
5193        let candidates = indent_guides
5194            .iter()
5195            .enumerate()
5196            .filter(|(_, indent_guide)| indent_guide.offset.x == depth);
5197
5198        for (i, indent) in candidates {
5199            // Find matches that are either an exact match, partially on screen, or inside the enclosing indent
5200            if active_indent_range.start <= indent.offset.y + indent.length
5201                && indent.offset.y <= active_indent_range.end
5202            {
5203                return Some(i);
5204            }
5205        }
5206        None
5207    }
5208
5209    fn render_sticky_entries(
5210        &self,
5211        child: StickyProjectPanelCandidate,
5212        window: &mut Window,
5213        cx: &mut Context<Self>,
5214    ) -> SmallVec<[AnyElement; 8]> {
5215        let project = self.project.read(cx);
5216
5217        let Some((worktree_id, entry_ref)) = self.entry_at_index(child.index) else {
5218            return SmallVec::new();
5219        };
5220
5221        let Some(visible) = self
5222            .state
5223            .visible_entries
5224            .iter()
5225            .find(|worktree| worktree.worktree_id == worktree_id)
5226        else {
5227            return SmallVec::new();
5228        };
5229
5230        let Some(worktree) = project.worktree_for_id(worktree_id, cx) else {
5231            return SmallVec::new();
5232        };
5233        let worktree = worktree.read(cx).snapshot();
5234
5235        let paths = visible
5236            .index
5237            .get_or_init(|| visible.entries.iter().map(|e| e.path.clone()).collect());
5238
5239        let mut sticky_parents = Vec::new();
5240        let mut current_path = entry_ref.path.clone();
5241
5242        'outer: loop {
5243            if let Some(parent_path) = current_path.parent() {
5244                for ancestor_path in parent_path.ancestors() {
5245                    if paths.contains(ancestor_path)
5246                        && let Some(parent_entry) = worktree.entry_for_path(ancestor_path)
5247                    {
5248                        sticky_parents.push(parent_entry.clone());
5249                        current_path = parent_entry.path.clone();
5250                        continue 'outer;
5251                    }
5252                }
5253            }
5254            break 'outer;
5255        }
5256
5257        if sticky_parents.is_empty() {
5258            return SmallVec::new();
5259        }
5260
5261        sticky_parents.reverse();
5262
5263        let panel_settings = ProjectPanelSettings::get_global(cx);
5264        let git_status_enabled = panel_settings.git_status;
5265        let root_name = worktree.root_name();
5266
5267        let git_summaries_by_id = if git_status_enabled {
5268            visible
5269                .entries
5270                .iter()
5271                .map(|e| (e.id, e.git_summary))
5272                .collect::<HashMap<_, _>>()
5273        } else {
5274            Default::default()
5275        };
5276
5277        // already checked if non empty above
5278        let last_item_index = sticky_parents.len() - 1;
5279        sticky_parents
5280            .iter()
5281            .enumerate()
5282            .map(|(index, entry)| {
5283                let git_status = git_summaries_by_id
5284                    .get(&entry.id)
5285                    .copied()
5286                    .unwrap_or_default();
5287                let sticky_details = Some(StickyDetails {
5288                    sticky_index: index,
5289                });
5290                let details = self.details_for_entry(
5291                    entry,
5292                    worktree_id,
5293                    root_name,
5294                    paths,
5295                    git_status,
5296                    sticky_details,
5297                    window,
5298                    cx,
5299                );
5300                self.render_entry(entry.id, details, window, cx)
5301                    .when(index == last_item_index, |this| {
5302                        let shadow_color_top = hsla(0.0, 0.0, 0.0, 0.1);
5303                        let shadow_color_bottom = hsla(0.0, 0.0, 0.0, 0.);
5304                        let sticky_shadow = div()
5305                            .absolute()
5306                            .left_0()
5307                            .bottom_neg_1p5()
5308                            .h_1p5()
5309                            .w_full()
5310                            .bg(linear_gradient(
5311                                0.,
5312                                linear_color_stop(shadow_color_top, 1.),
5313                                linear_color_stop(shadow_color_bottom, 0.),
5314                            ));
5315                        this.child(sticky_shadow)
5316                    })
5317                    .into_any()
5318            })
5319            .collect()
5320    }
5321}
5322
5323#[derive(Clone)]
5324struct StickyProjectPanelCandidate {
5325    index: usize,
5326    depth: usize,
5327}
5328
5329impl StickyCandidate for StickyProjectPanelCandidate {
5330    fn depth(&self) -> usize {
5331        self.depth
5332    }
5333}
5334
5335fn item_width_estimate(depth: usize, item_text_chars: usize, is_symlink: bool) -> usize {
5336    const ICON_SIZE_FACTOR: usize = 2;
5337    let mut item_width = depth * ICON_SIZE_FACTOR + item_text_chars;
5338    if is_symlink {
5339        item_width += ICON_SIZE_FACTOR;
5340    }
5341    item_width
5342}
5343
5344impl Render for ProjectPanel {
5345    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
5346        let has_worktree = !self.state.visible_entries.is_empty();
5347        let project = self.project.read(cx);
5348        let panel_settings = ProjectPanelSettings::get_global(cx);
5349        let indent_size = panel_settings.indent_size;
5350        let show_indent_guides = panel_settings.indent_guides.show == ShowIndentGuides::Always;
5351        let show_sticky_entries = {
5352            if panel_settings.sticky_scroll {
5353                let is_scrollable = self.scroll_handle.is_scrollable();
5354                let is_scrolled = self.scroll_handle.offset().y < px(0.);
5355                is_scrollable && is_scrolled
5356            } else {
5357                false
5358            }
5359        };
5360
5361        let is_local = project.is_local();
5362
5363        if has_worktree {
5364            let item_count = self
5365                .state
5366                .visible_entries
5367                .iter()
5368                .map(|worktree| worktree.entries.len())
5369                .sum();
5370
5371            fn handle_drag_move<T: 'static>(
5372                this: &mut ProjectPanel,
5373                e: &DragMoveEvent<T>,
5374                window: &mut Window,
5375                cx: &mut Context<ProjectPanel>,
5376            ) {
5377                if let Some(previous_position) = this.previous_drag_position {
5378                    // Refresh cursor only when an actual drag happens,
5379                    // because modifiers are not updated when the cursor is not moved.
5380                    if e.event.position != previous_position {
5381                        this.refresh_drag_cursor_style(&e.event.modifiers, window, cx);
5382                    }
5383                }
5384                this.previous_drag_position = Some(e.event.position);
5385
5386                if !e.bounds.contains(&e.event.position) {
5387                    this.drag_target_entry = None;
5388                    return;
5389                }
5390                this.hover_scroll_task.take();
5391                let panel_height = e.bounds.size.height;
5392                if panel_height <= px(0.) {
5393                    return;
5394                }
5395
5396                let event_offset = e.event.position.y - e.bounds.origin.y;
5397                // How far along in the project panel is our cursor? (0. is the top of a list, 1. is the bottom)
5398                let hovered_region_offset = event_offset / panel_height;
5399
5400                // We want the scrolling to be a bit faster when the cursor is closer to the edge of a list.
5401                // These pixels offsets were picked arbitrarily.
5402                let vertical_scroll_offset = if hovered_region_offset <= 0.05 {
5403                    8.
5404                } else if hovered_region_offset <= 0.15 {
5405                    5.
5406                } else if hovered_region_offset >= 0.95 {
5407                    -8.
5408                } else if hovered_region_offset >= 0.85 {
5409                    -5.
5410                } else {
5411                    return;
5412                };
5413                let adjustment = point(px(0.), px(vertical_scroll_offset));
5414                this.hover_scroll_task = Some(cx.spawn_in(window, async move |this, cx| {
5415                    loop {
5416                        let should_stop_scrolling = this
5417                            .update(cx, |this, cx| {
5418                                this.hover_scroll_task.as_ref()?;
5419                                let handle = this.scroll_handle.0.borrow_mut();
5420                                let offset = handle.base_handle.offset();
5421
5422                                handle.base_handle.set_offset(offset + adjustment);
5423                                cx.notify();
5424                                Some(())
5425                            })
5426                            .ok()
5427                            .flatten()
5428                            .is_some();
5429                        if should_stop_scrolling {
5430                            return;
5431                        }
5432                        cx.background_executor()
5433                            .timer(Duration::from_millis(16))
5434                            .await;
5435                    }
5436                }));
5437            }
5438            h_flex()
5439                .id("project-panel")
5440                .group("project-panel")
5441                .when(panel_settings.drag_and_drop, |this| {
5442                    this.on_drag_move(cx.listener(handle_drag_move::<ExternalPaths>))
5443                        .on_drag_move(cx.listener(handle_drag_move::<DraggedSelection>))
5444                })
5445                .size_full()
5446                .relative()
5447                .on_modifiers_changed(cx.listener(
5448                    |this, event: &ModifiersChangedEvent, window, cx| {
5449                        this.refresh_drag_cursor_style(&event.modifiers, window, cx);
5450                    },
5451                ))
5452                .key_context(self.dispatch_context(window, cx))
5453                .on_action(cx.listener(Self::scroll_up))
5454                .on_action(cx.listener(Self::scroll_down))
5455                .on_action(cx.listener(Self::scroll_cursor_center))
5456                .on_action(cx.listener(Self::scroll_cursor_top))
5457                .on_action(cx.listener(Self::scroll_cursor_bottom))
5458                .on_action(cx.listener(Self::select_next))
5459                .on_action(cx.listener(Self::select_previous))
5460                .on_action(cx.listener(Self::select_first))
5461                .on_action(cx.listener(Self::select_last))
5462                .on_action(cx.listener(Self::select_parent))
5463                .on_action(cx.listener(Self::select_next_git_entry))
5464                .on_action(cx.listener(Self::select_prev_git_entry))
5465                .on_action(cx.listener(Self::select_next_diagnostic))
5466                .on_action(cx.listener(Self::select_prev_diagnostic))
5467                .on_action(cx.listener(Self::select_next_directory))
5468                .on_action(cx.listener(Self::select_prev_directory))
5469                .on_action(cx.listener(Self::expand_selected_entry))
5470                .on_action(cx.listener(Self::collapse_selected_entry))
5471                .on_action(cx.listener(Self::collapse_all_entries))
5472                .on_action(cx.listener(Self::open))
5473                .on_action(cx.listener(Self::open_permanent))
5474                .on_action(cx.listener(Self::open_split_vertical))
5475                .on_action(cx.listener(Self::open_split_horizontal))
5476                .on_action(cx.listener(Self::confirm))
5477                .on_action(cx.listener(Self::cancel))
5478                .on_action(cx.listener(Self::copy_path))
5479                .on_action(cx.listener(Self::copy_relative_path))
5480                .on_action(cx.listener(Self::new_search_in_directory))
5481                .on_action(cx.listener(Self::unfold_directory))
5482                .on_action(cx.listener(Self::fold_directory))
5483                .on_action(cx.listener(Self::remove_from_project))
5484                .on_action(cx.listener(Self::compare_marked_files))
5485                .when(!project.is_read_only(cx), |el| {
5486                    el.on_action(cx.listener(Self::new_file))
5487                        .on_action(cx.listener(Self::new_directory))
5488                        .on_action(cx.listener(Self::rename))
5489                        .on_action(cx.listener(Self::delete))
5490                        .on_action(cx.listener(Self::cut))
5491                        .on_action(cx.listener(Self::copy))
5492                        .on_action(cx.listener(Self::paste))
5493                        .on_action(cx.listener(Self::duplicate))
5494                        .when(!project.is_remote(), |el| {
5495                            el.on_action(cx.listener(Self::trash))
5496                        })
5497                })
5498                .when(project.is_local(), |el| {
5499                    el.on_action(cx.listener(Self::reveal_in_finder))
5500                        .on_action(cx.listener(Self::open_system))
5501                        .on_action(cx.listener(Self::open_in_terminal))
5502                })
5503                .when(project.is_via_remote_server(), |el| {
5504                    el.on_action(cx.listener(Self::open_in_terminal))
5505                })
5506                .track_focus(&self.focus_handle(cx))
5507                .child(
5508                    v_flex()
5509                        .child(
5510                            uniform_list("entries", item_count, {
5511                                cx.processor(|this, range: Range<usize>, window, cx| {
5512                                    this.rendered_entries_len = range.end - range.start;
5513                                    let mut items = Vec::with_capacity(this.rendered_entries_len);
5514                                    this.for_each_visible_entry(
5515                                        range,
5516                                        window,
5517                                        cx,
5518                                        |id, details, window, cx| {
5519                                            items.push(this.render_entry(id, details, window, cx));
5520                                        },
5521                                    );
5522                                    items
5523                                })
5524                            })
5525                            .when(show_indent_guides, |list| {
5526                                list.with_decoration(
5527                                    ui::indent_guides(
5528                                        px(indent_size),
5529                                        IndentGuideColors::panel(cx),
5530                                    )
5531                                    .with_compute_indents_fn(
5532                                        cx.entity(),
5533                                        |this, range, window, cx| {
5534                                            let mut items =
5535                                                SmallVec::with_capacity(range.end - range.start);
5536                                            this.iter_visible_entries(
5537                                                range,
5538                                                window,
5539                                                cx,
5540                                                |entry, _, entries, _, _| {
5541                                                    let (depth, _) =
5542                                                        Self::calculate_depth_and_difference(
5543                                                            entry, entries,
5544                                                        );
5545                                                    items.push(depth);
5546                                                },
5547                                            );
5548                                            items
5549                                        },
5550                                    )
5551                                    .on_click(cx.listener(
5552                                        |this,
5553                                         active_indent_guide: &IndentGuideLayout,
5554                                         window,
5555                                         cx| {
5556                                            if window.modifiers().secondary() {
5557                                                let ix = active_indent_guide.offset.y;
5558                                                let Some((target_entry, worktree)) = maybe!({
5559                                                    let (worktree_id, entry) =
5560                                                        this.entry_at_index(ix)?;
5561                                                    let worktree = this
5562                                                        .project
5563                                                        .read(cx)
5564                                                        .worktree_for_id(worktree_id, cx)?;
5565                                                    let target_entry = worktree
5566                                                        .read(cx)
5567                                                        .entry_for_path(&entry.path.parent()?)?;
5568                                                    Some((target_entry, worktree))
5569                                                }) else {
5570                                                    return;
5571                                                };
5572
5573                                                this.collapse_entry(
5574                                                    target_entry.clone(),
5575                                                    worktree,
5576                                                    window,
5577                                                    cx,
5578                                                );
5579                                            }
5580                                        },
5581                                    ))
5582                                    .with_render_fn(
5583                                        cx.entity(),
5584                                        move |this, params, _, cx| {
5585                                            const LEFT_OFFSET: Pixels = px(14.);
5586                                            const PADDING_Y: Pixels = px(4.);
5587                                            const HITBOX_OVERDRAW: Pixels = px(3.);
5588
5589                                            let active_indent_guide_index = this
5590                                                .find_active_indent_guide(
5591                                                    &params.indent_guides,
5592                                                    cx,
5593                                                );
5594
5595                                            let indent_size = params.indent_size;
5596                                            let item_height = params.item_height;
5597
5598                                            params
5599                                                .indent_guides
5600                                                .into_iter()
5601                                                .enumerate()
5602                                                .map(|(idx, layout)| {
5603                                                    let offset = if layout.continues_offscreen {
5604                                                        px(0.)
5605                                                    } else {
5606                                                        PADDING_Y
5607                                                    };
5608                                                    let bounds = Bounds::new(
5609                                                        point(
5610                                                            layout.offset.x * indent_size
5611                                                                + LEFT_OFFSET,
5612                                                            layout.offset.y * item_height + offset,
5613                                                        ),
5614                                                        size(
5615                                                            px(1.),
5616                                                            layout.length * item_height
5617                                                                - offset * 2.,
5618                                                        ),
5619                                                    );
5620                                                    ui::RenderedIndentGuide {
5621                                                        bounds,
5622                                                        layout,
5623                                                        is_active: Some(idx)
5624                                                            == active_indent_guide_index,
5625                                                        hitbox: Some(Bounds::new(
5626                                                            point(
5627                                                                bounds.origin.x - HITBOX_OVERDRAW,
5628                                                                bounds.origin.y,
5629                                                            ),
5630                                                            size(
5631                                                                bounds.size.width
5632                                                                    + HITBOX_OVERDRAW * 2.,
5633                                                                bounds.size.height,
5634                                                            ),
5635                                                        )),
5636                                                    }
5637                                                })
5638                                                .collect()
5639                                        },
5640                                    ),
5641                                )
5642                            })
5643                            .when(show_sticky_entries, |list| {
5644                                let sticky_items = ui::sticky_items(
5645                                    cx.entity(),
5646                                    |this, range, window, cx| {
5647                                        let mut items =
5648                                            SmallVec::with_capacity(range.end - range.start);
5649                                        this.iter_visible_entries(
5650                                            range,
5651                                            window,
5652                                            cx,
5653                                            |entry, index, entries, _, _| {
5654                                                let (depth, _) =
5655                                                    Self::calculate_depth_and_difference(
5656                                                        entry, entries,
5657                                                    );
5658                                                let candidate =
5659                                                    StickyProjectPanelCandidate { index, depth };
5660                                                items.push(candidate);
5661                                            },
5662                                        );
5663                                        items
5664                                    },
5665                                    |this, marker_entry, window, cx| {
5666                                        let sticky_entries =
5667                                            this.render_sticky_entries(marker_entry, window, cx);
5668                                        this.sticky_items_count = sticky_entries.len();
5669                                        sticky_entries
5670                                    },
5671                                );
5672                                list.with_decoration(if show_indent_guides {
5673                                    sticky_items.with_decoration(
5674                                        ui::indent_guides(
5675                                            px(indent_size),
5676                                            IndentGuideColors::panel(cx),
5677                                        )
5678                                        .with_render_fn(
5679                                            cx.entity(),
5680                                            move |_, params, _, _| {
5681                                                const LEFT_OFFSET: Pixels = px(14.);
5682
5683                                                let indent_size = params.indent_size;
5684                                                let item_height = params.item_height;
5685
5686                                                params
5687                                                    .indent_guides
5688                                                    .into_iter()
5689                                                    .map(|layout| {
5690                                                        let bounds = Bounds::new(
5691                                                            point(
5692                                                                layout.offset.x * indent_size
5693                                                                    + LEFT_OFFSET,
5694                                                                layout.offset.y * item_height,
5695                                                            ),
5696                                                            size(
5697                                                                px(1.),
5698                                                                layout.length * item_height,
5699                                                            ),
5700                                                        );
5701                                                        ui::RenderedIndentGuide {
5702                                                            bounds,
5703                                                            layout,
5704                                                            is_active: false,
5705                                                            hitbox: None,
5706                                                        }
5707                                                    })
5708                                                    .collect()
5709                                            },
5710                                        ),
5711                                    )
5712                                } else {
5713                                    sticky_items
5714                                })
5715                            })
5716                            .with_sizing_behavior(ListSizingBehavior::Infer)
5717                            .with_horizontal_sizing_behavior(
5718                                ListHorizontalSizingBehavior::Unconstrained,
5719                            )
5720                            .with_width_from_item(self.state.max_width_item_index)
5721                            .track_scroll(self.scroll_handle.clone()),
5722                        )
5723                        .child(
5724                            div()
5725                                .id("project-panel-blank-area")
5726                                .block_mouse_except_scroll()
5727                                .flex_grow()
5728                                .when(
5729                                    self.drag_target_entry.as_ref().is_some_and(
5730                                        |entry| match entry {
5731                                            DragTarget::Background => true,
5732                                            DragTarget::Entry {
5733                                                highlight_entry_id, ..
5734                                            } => self.state.last_worktree_root_id.is_some_and(
5735                                                |root_id| *highlight_entry_id == root_id,
5736                                            ),
5737                                        },
5738                                    ),
5739                                    |div| div.bg(cx.theme().colors().drop_target_background),
5740                                )
5741                                .on_drag_move::<ExternalPaths>(cx.listener(
5742                                    move |this, event: &DragMoveEvent<ExternalPaths>, _, _| {
5743                                        let Some(_last_root_id) = this.state.last_worktree_root_id
5744                                        else {
5745                                            return;
5746                                        };
5747                                        if event.bounds.contains(&event.event.position) {
5748                                            this.drag_target_entry = Some(DragTarget::Background);
5749                                        } else {
5750                                            if this.drag_target_entry.as_ref().is_some_and(|e| {
5751                                                matches!(e, DragTarget::Background)
5752                                            }) {
5753                                                this.drag_target_entry = None;
5754                                            }
5755                                        }
5756                                    },
5757                                ))
5758                                .on_drag_move::<DraggedSelection>(cx.listener(
5759                                    move |this, event: &DragMoveEvent<DraggedSelection>, _, cx| {
5760                                        let Some(last_root_id) = this.state.last_worktree_root_id
5761                                        else {
5762                                            return;
5763                                        };
5764                                        if event.bounds.contains(&event.event.position) {
5765                                            let drag_state = event.drag(cx);
5766                                            if this.should_highlight_background_for_selection_drag(
5767                                                &drag_state,
5768                                                last_root_id,
5769                                                cx,
5770                                            ) {
5771                                                this.drag_target_entry =
5772                                                    Some(DragTarget::Background);
5773                                            }
5774                                        } else {
5775                                            if this.drag_target_entry.as_ref().is_some_and(|e| {
5776                                                matches!(e, DragTarget::Background)
5777                                            }) {
5778                                                this.drag_target_entry = None;
5779                                            }
5780                                        }
5781                                    },
5782                                ))
5783                                .on_drop(cx.listener(
5784                                    move |this, external_paths: &ExternalPaths, 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.drop_external_files(
5789                                                external_paths.paths(),
5790                                                entry_id,
5791                                                window,
5792                                                cx,
5793                                            );
5794                                        }
5795                                        cx.stop_propagation();
5796                                    },
5797                                ))
5798                                .on_drop(cx.listener(
5799                                    move |this, selections: &DraggedSelection, window, cx| {
5800                                        this.drag_target_entry = None;
5801                                        this.hover_scroll_task.take();
5802                                        if let Some(entry_id) = this.state.last_worktree_root_id {
5803                                            this.drag_onto(selections, entry_id, false, window, cx);
5804                                        }
5805                                        cx.stop_propagation();
5806                                    },
5807                                ))
5808                                .on_click(cx.listener(|this, event, window, cx| {
5809                                    if matches!(event, gpui::ClickEvent::Keyboard(_)) {
5810                                        return;
5811                                    }
5812                                    cx.stop_propagation();
5813                                    this.state.selection = None;
5814                                    this.marked_entries.clear();
5815                                    this.focus_handle(cx).focus(window);
5816                                }))
5817                                .on_mouse_down(
5818                                    MouseButton::Right,
5819                                    cx.listener(move |this, event: &MouseDownEvent, window, cx| {
5820                                        // When deploying the context menu anywhere below the last project entry,
5821                                        // act as if the user clicked the root of the last worktree.
5822                                        if let Some(entry_id) = this.state.last_worktree_root_id {
5823                                            this.deploy_context_menu(
5824                                                event.position,
5825                                                entry_id,
5826                                                window,
5827                                                cx,
5828                                            );
5829                                        }
5830                                    }),
5831                                )
5832                                .when(!project.is_read_only(cx), |el| {
5833                                    el.on_click(cx.listener(
5834                                        |this, event: &gpui::ClickEvent, window, cx| {
5835                                            if event.click_count() > 1
5836                                                && let Some(entry_id) =
5837                                                    this.state.last_worktree_root_id
5838                                            {
5839                                                let project = this.project.read(cx);
5840
5841                                                let worktree_id = if let Some(worktree) =
5842                                                    project.worktree_for_entry(entry_id, cx)
5843                                                {
5844                                                    worktree.read(cx).id()
5845                                                } else {
5846                                                    return;
5847                                                };
5848
5849                                                this.state.selection = Some(SelectedEntry {
5850                                                    worktree_id,
5851                                                    entry_id,
5852                                                });
5853
5854                                                this.new_file(&NewFile, window, cx);
5855                                            }
5856                                        },
5857                                    ))
5858                                }),
5859                        )
5860                        .size_full(),
5861                )
5862                .custom_scrollbars(
5863                    Scrollbars::for_settings::<ProjectPanelSettings>()
5864                        .tracked_scroll_handle(self.scroll_handle.clone())
5865                        .with_track_along(
5866                            ScrollAxes::Horizontal,
5867                            cx.theme().colors().panel_background,
5868                        )
5869                        .notify_content(),
5870                    window,
5871                    cx,
5872                )
5873                .children(self.context_menu.as_ref().map(|(menu, position, _)| {
5874                    deferred(
5875                        anchored()
5876                            .position(*position)
5877                            .anchor(gpui::Corner::TopLeft)
5878                            .child(menu.clone()),
5879                    )
5880                    .with_priority(3)
5881                }))
5882        } else {
5883            let focus_handle = self.focus_handle(cx);
5884
5885            v_flex()
5886                .id("empty-project_panel")
5887                .p_4()
5888                .size_full()
5889                .items_center()
5890                .justify_center()
5891                .gap_1()
5892                .track_focus(&self.focus_handle(cx))
5893                .child(
5894                    Button::new("open_project", "Open Project")
5895                        .full_width()
5896                        .key_binding(KeyBinding::for_action_in(
5897                            &workspace::Open,
5898                            &focus_handle,
5899                            cx,
5900                        ))
5901                        .on_click(cx.listener(|this, _, window, cx| {
5902                            this.workspace
5903                                .update(cx, |_, cx| {
5904                                    window.dispatch_action(workspace::Open.boxed_clone(), cx);
5905                                })
5906                                .log_err();
5907                        })),
5908                )
5909                .child(
5910                    h_flex()
5911                        .w_1_2()
5912                        .gap_2()
5913                        .child(Divider::horizontal())
5914                        .child(Label::new("or").size(LabelSize::XSmall).color(Color::Muted))
5915                        .child(Divider::horizontal()),
5916                )
5917                .child(
5918                    Button::new("clone_repo", "Clone Repository")
5919                        .full_width()
5920                        .on_click(cx.listener(|this, _, window, cx| {
5921                            this.workspace
5922                                .update(cx, |_, cx| {
5923                                    window.dispatch_action(git::Clone.boxed_clone(), cx);
5924                                })
5925                                .log_err();
5926                        })),
5927                )
5928                .when(is_local, |div| {
5929                    div.when(panel_settings.drag_and_drop, |div| {
5930                        div.drag_over::<ExternalPaths>(|style, _, _, cx| {
5931                            style.bg(cx.theme().colors().drop_target_background)
5932                        })
5933                        .on_drop(cx.listener(
5934                            move |this, external_paths: &ExternalPaths, window, cx| {
5935                                this.drag_target_entry = None;
5936                                this.hover_scroll_task.take();
5937                                if let Some(task) = this
5938                                    .workspace
5939                                    .update(cx, |workspace, cx| {
5940                                        workspace.open_workspace_for_paths(
5941                                            true,
5942                                            external_paths.paths().to_owned(),
5943                                            window,
5944                                            cx,
5945                                        )
5946                                    })
5947                                    .log_err()
5948                                {
5949                                    task.detach_and_log_err(cx);
5950                                }
5951                                cx.stop_propagation();
5952                            },
5953                        ))
5954                    })
5955                })
5956        }
5957    }
5958}
5959
5960impl Render for DraggedProjectEntryView {
5961    fn render(&mut self, _: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
5962        let ui_font = ThemeSettings::get_global(cx).ui_font.clone();
5963        h_flex()
5964            .font(ui_font)
5965            .pl(self.click_offset.x + px(12.))
5966            .pt(self.click_offset.y + px(12.))
5967            .child(
5968                div()
5969                    .flex()
5970                    .gap_1()
5971                    .items_center()
5972                    .py_1()
5973                    .px_2()
5974                    .rounded_lg()
5975                    .bg(cx.theme().colors().background)
5976                    .map(|this| {
5977                        if self.selections.len() > 1 && self.selections.contains(&self.selection) {
5978                            this.child(Label::new(format!("{} entries", self.selections.len())))
5979                        } else {
5980                            this.child(if let Some(icon) = &self.icon {
5981                                div().child(Icon::from_path(icon.clone()))
5982                            } else {
5983                                div()
5984                            })
5985                            .child(Label::new(self.filename.clone()))
5986                        }
5987                    }),
5988            )
5989    }
5990}
5991
5992impl EventEmitter<Event> for ProjectPanel {}
5993
5994impl EventEmitter<PanelEvent> for ProjectPanel {}
5995
5996impl Panel for ProjectPanel {
5997    fn position(&self, _: &Window, cx: &App) -> DockPosition {
5998        match ProjectPanelSettings::get_global(cx).dock {
5999            DockSide::Left => DockPosition::Left,
6000            DockSide::Right => DockPosition::Right,
6001        }
6002    }
6003
6004    fn position_is_valid(&self, position: DockPosition) -> bool {
6005        matches!(position, DockPosition::Left | DockPosition::Right)
6006    }
6007
6008    fn set_position(&mut self, position: DockPosition, _: &mut Window, cx: &mut Context<Self>) {
6009        settings::update_settings_file(self.fs.clone(), cx, move |settings, _| {
6010            let dock = match position {
6011                DockPosition::Left | DockPosition::Bottom => DockSide::Left,
6012                DockPosition::Right => DockSide::Right,
6013            };
6014            settings.project_panel.get_or_insert_default().dock = Some(dock);
6015        });
6016    }
6017
6018    fn size(&self, _: &Window, cx: &App) -> Pixels {
6019        self.width
6020            .unwrap_or_else(|| ProjectPanelSettings::get_global(cx).default_width)
6021    }
6022
6023    fn set_size(&mut self, size: Option<Pixels>, window: &mut Window, cx: &mut Context<Self>) {
6024        self.width = size;
6025        cx.notify();
6026        cx.defer_in(window, |this, _, cx| {
6027            this.serialize(cx);
6028        });
6029    }
6030
6031    fn icon(&self, _: &Window, cx: &App) -> Option<IconName> {
6032        ProjectPanelSettings::get_global(cx)
6033            .button
6034            .then_some(IconName::FileTree)
6035    }
6036
6037    fn icon_tooltip(&self, _window: &Window, _cx: &App) -> Option<&'static str> {
6038        Some("Project Panel")
6039    }
6040
6041    fn toggle_action(&self) -> Box<dyn Action> {
6042        Box::new(ToggleFocus)
6043    }
6044
6045    fn persistent_name() -> &'static str {
6046        "Project Panel"
6047    }
6048
6049    fn panel_key() -> &'static str {
6050        PROJECT_PANEL_KEY
6051    }
6052
6053    fn starts_open(&self, _: &Window, cx: &App) -> bool {
6054        if !ProjectPanelSettings::get_global(cx).starts_open {
6055            return false;
6056        }
6057
6058        let project = &self.project.read(cx);
6059        project.visible_worktrees(cx).any(|tree| {
6060            tree.read(cx)
6061                .root_entry()
6062                .is_some_and(|entry| entry.is_dir())
6063        })
6064    }
6065
6066    fn activation_priority(&self) -> u32 {
6067        0
6068    }
6069}
6070
6071impl Focusable for ProjectPanel {
6072    fn focus_handle(&self, _cx: &App) -> FocusHandle {
6073        self.focus_handle.clone()
6074    }
6075}
6076
6077impl ClipboardEntry {
6078    fn is_cut(&self) -> bool {
6079        matches!(self, Self::Cut { .. })
6080    }
6081
6082    fn items(&self) -> &BTreeSet<SelectedEntry> {
6083        match self {
6084            ClipboardEntry::Copied(entries) | ClipboardEntry::Cut(entries) => entries,
6085        }
6086    }
6087
6088    fn into_copy_entry(self) -> Self {
6089        match self {
6090            ClipboardEntry::Copied(_) => self,
6091            ClipboardEntry::Cut(entries) => ClipboardEntry::Copied(entries),
6092        }
6093    }
6094}
6095
6096fn cmp<T: AsRef<Entry>>(lhs: T, rhs: T) -> cmp::Ordering {
6097    let entry_a = lhs.as_ref();
6098    let entry_b = rhs.as_ref();
6099    util::paths::compare_rel_paths(
6100        (&entry_a.path, entry_a.is_file()),
6101        (&entry_b.path, entry_b.is_file()),
6102    )
6103}
6104
6105pub fn sort_worktree_entries(entries: &mut [impl AsRef<Entry>]) {
6106    entries.sort_by(|lhs, rhs| cmp(lhs, rhs));
6107}
6108
6109pub fn par_sort_worktree_entries(entries: &mut Vec<GitEntry>) {
6110    entries.par_sort_by(|lhs, rhs| cmp(lhs, rhs));
6111}
6112
6113#[cfg(test)]
6114mod project_panel_tests;