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, MultiBufferOffset,
  11    items::{
  12        entry_diagnostic_aware_icon_decoration_and_color,
  13        entry_diagnostic_aware_icon_name_and_color, entry_git_aware_label_color,
  14    },
  15};
  16use file_icons::FileIcons;
  17use git;
  18use git::status::GitSummary;
  19use git_ui;
  20use git_ui::file_diff_view::FileDiffView;
  21use gpui::{
  22    Action, AnyElement, App, AsyncWindowContext, Bounds, ClipboardItem, Context, CursorStyle,
  23    DismissEvent, Div, DragMoveEvent, Entity, EventEmitter, ExternalPaths, FocusHandle, Focusable,
  24    Hsla, InteractiveElement, KeyContext, ListHorizontalSizingBehavior, ListSizingBehavior,
  25    Modifiers, ModifiersChangedEvent, MouseButton, MouseDownEvent, ParentElement, Pixels, Point,
  26    PromptLevel, Render, ScrollStrategy, Stateful, Styled, Subscription, Task,
  27    UniformListScrollHandle, WeakEntity, Window, actions, anchored, deferred, div, hsla,
  28    linear_color_stop, linear_gradient, point, px, size, transparent_white, uniform_list,
  29};
  30use language::DiagnosticSeverity;
  31use menu::{Confirm, SelectFirst, SelectLast, SelectNext, SelectPrevious};
  32use notifications::status_toast::{StatusToast, ToastIcon};
  33use project::{
  34    Entry, EntryKind, Fs, GitEntry, GitEntryRef, GitTraversal, Project, ProjectEntryId,
  35    ProjectPath, Worktree, WorktreeId,
  36    git_store::{GitStoreEvent, RepositoryEvent, git_traversal::ChildEntriesGitIter},
  37    project_settings::GoToDiagnosticSeverityFilter,
  38};
  39use project_panel_settings::ProjectPanelSettings;
  40use rayon::slice::ParallelSliceMut;
  41use schemars::JsonSchema;
  42use serde::{Deserialize, Serialize};
  43use settings::{
  44    DockSide, ProjectPanelEntrySpacing, Settings, SettingsStore, ShowDiagnostics, ShowIndentGuides,
  45    update_settings_file,
  46};
  47use smallvec::SmallVec;
  48use std::{any::TypeId, time::Instant};
  49use std::{
  50    cell::OnceCell,
  51    cmp,
  52    collections::HashSet,
  53    ops::Range,
  54    path::{Path, PathBuf},
  55    sync::Arc,
  56    time::Duration,
  57};
  58use theme::ThemeSettings;
  59use ui::{
  60    Color, ContextMenu, DecoratedIcon, Divider, Icon, IconDecoration, IconDecorationKind,
  61    IndentGuideColors, IndentGuideLayout, KeyBinding, Label, LabelSize, ListItem, ListItemSpacing,
  62    ScrollAxes, ScrollableHandle, Scrollbars, StickyCandidate, Tooltip, WithScrollbar, prelude::*,
  63    v_flex,
  64};
  65use util::{ResultExt, TakeUntilExt, TryFutureExt, maybe, paths::compare_paths, rel_path::RelPath};
  66use workspace::{
  67    DraggedSelection, OpenInTerminal, OpenOptions, OpenVisible, PreviewTabsSettings, SelectedEntry,
  68    SplitDirection, Workspace,
  69    dock::{DockPosition, Panel, PanelEvent},
  70    notifications::{DetachAndPromptErr, NotifyResultExt, NotifyTaskExt},
  71};
  72use worktree::CreatedEntry;
  73use zed_actions::{project_panel::ToggleFocus, workspace::OpenWithSystem};
  74
  75const PROJECT_PANEL_KEY: &str = "ProjectPanel";
  76const NEW_ENTRY_ID: ProjectEntryId = ProjectEntryId::MAX;
  77
  78struct VisibleEntriesForWorktree {
  79    worktree_id: WorktreeId,
  80    entries: Vec<GitEntry>,
  81    index: OnceCell<HashSet<Arc<RelPath>>>,
  82}
  83
  84struct State {
  85    last_worktree_root_id: Option<ProjectEntryId>,
  86    /// Maps from leaf project entry ID to the currently selected ancestor.
  87    /// Relevant only for auto-fold dirs, where a single project panel entry may actually consist of several
  88    /// project entries (and all non-leaf nodes are guaranteed to be directories).
  89    ancestors: HashMap<ProjectEntryId, FoldedAncestors>,
  90    visible_entries: Vec<VisibleEntriesForWorktree>,
  91    max_width_item_index: Option<usize>,
  92    // Currently selected leaf entry (see auto-folding for a definition of that) in a file tree
  93    selection: Option<SelectedEntry>,
  94    edit_state: Option<EditState>,
  95    unfolded_dir_ids: HashSet<ProjectEntryId>,
  96    expanded_dir_ids: HashMap<WorktreeId, Vec<ProjectEntryId>>,
  97}
  98
  99impl State {
 100    fn derive(old: &Self) -> Self {
 101        Self {
 102            last_worktree_root_id: None,
 103            ancestors: Default::default(),
 104            visible_entries: Default::default(),
 105            max_width_item_index: None,
 106            edit_state: old.edit_state.clone(),
 107            unfolded_dir_ids: old.unfolded_dir_ids.clone(),
 108            selection: old.selection,
 109            expanded_dir_ids: old.expanded_dir_ids.clone(),
 110        }
 111    }
 112}
 113
 114pub struct ProjectPanel {
 115    project: Entity<Project>,
 116    fs: Arc<dyn Fs>,
 117    focus_handle: FocusHandle,
 118    scroll_handle: UniformListScrollHandle,
 119    // An update loop that keeps incrementing/decrementing scroll offset while there is a dragged entry that's
 120    // hovered over the start/end of a list.
 121    hover_scroll_task: Option<Task<()>>,
 122    rendered_entries_len: usize,
 123    folded_directory_drag_target: Option<FoldedDirectoryDragTarget>,
 124    drag_target_entry: Option<DragTarget>,
 125    marked_entries: Vec<SelectedEntry>,
 126    context_menu: Option<(Entity<ContextMenu>, Point<Pixels>, Subscription)>,
 127    filename_editor: Entity<Editor>,
 128    clipboard: Option<ClipboardEntry>,
 129    _dragged_entry_destination: Option<Arc<Path>>,
 130    workspace: WeakEntity<Workspace>,
 131    width: Option<Pixels>,
 132    pending_serialization: Task<Option<()>>,
 133    diagnostics: HashMap<(WorktreeId, Arc<RelPath>), DiagnosticSeverity>,
 134    diagnostic_summary_update: Task<()>,
 135    // We keep track of the mouse down state on entries so we don't flash the UI
 136    // in case a user clicks to open a file.
 137    mouse_down: bool,
 138    hover_expand_task: Option<Task<()>>,
 139    previous_drag_position: Option<Point<Pixels>>,
 140    sticky_items_count: usize,
 141    last_reported_update: Instant,
 142    update_visible_entries_task: UpdateVisibleEntriesTask,
 143    state: State,
 144}
 145
 146struct UpdateVisibleEntriesTask {
 147    _visible_entries_task: Task<()>,
 148    focus_filename_editor: bool,
 149    autoscroll: bool,
 150}
 151
 152impl Default for UpdateVisibleEntriesTask {
 153    fn default() -> Self {
 154        UpdateVisibleEntriesTask {
 155            _visible_entries_task: Task::ready(()),
 156            focus_filename_editor: Default::default(),
 157            autoscroll: Default::default(),
 158        }
 159    }
 160}
 161
 162enum DragTarget {
 163    /// Dragging on an entry
 164    Entry {
 165        /// The entry currently under the mouse cursor during a drag operation
 166        entry_id: ProjectEntryId,
 167        /// Highlight this entry along with all of its children
 168        highlight_entry_id: ProjectEntryId,
 169    },
 170    /// Dragging on background
 171    Background,
 172}
 173
 174#[derive(Copy, Clone, Debug)]
 175struct FoldedDirectoryDragTarget {
 176    entry_id: ProjectEntryId,
 177    index: usize,
 178    /// Whether we are dragging over the delimiter rather than the component itself.
 179    is_delimiter_target: bool,
 180}
 181
 182#[derive(Clone, Debug)]
 183enum ValidationState {
 184    None,
 185    Warning(String),
 186    Error(String),
 187}
 188
 189#[derive(Clone, Debug)]
 190struct EditState {
 191    worktree_id: WorktreeId,
 192    entry_id: ProjectEntryId,
 193    leaf_entry_id: Option<ProjectEntryId>,
 194    is_dir: bool,
 195    depth: usize,
 196    processing_filename: Option<Arc<RelPath>>,
 197    previously_focused: Option<SelectedEntry>,
 198    validation_state: ValidationState,
 199}
 200
 201impl EditState {
 202    fn is_new_entry(&self) -> bool {
 203        self.leaf_entry_id.is_none()
 204    }
 205}
 206
 207#[derive(Clone, Debug)]
 208enum ClipboardEntry {
 209    Copied(BTreeSet<SelectedEntry>),
 210    Cut(BTreeSet<SelectedEntry>),
 211}
 212
 213#[derive(Debug, PartialEq, Eq, Clone)]
 214struct EntryDetails {
 215    filename: String,
 216    icon: Option<SharedString>,
 217    path: Arc<RelPath>,
 218    depth: usize,
 219    kind: EntryKind,
 220    is_ignored: bool,
 221    is_expanded: bool,
 222    is_selected: bool,
 223    is_marked: bool,
 224    is_editing: bool,
 225    is_processing: bool,
 226    is_cut: bool,
 227    sticky: Option<StickyDetails>,
 228    filename_text_color: Color,
 229    diagnostic_severity: Option<DiagnosticSeverity>,
 230    git_status: GitSummary,
 231    is_private: bool,
 232    worktree_id: WorktreeId,
 233    canonical_path: Option<Arc<Path>>,
 234}
 235
 236#[derive(Debug, PartialEq, Eq, Clone)]
 237struct StickyDetails {
 238    sticky_index: usize,
 239}
 240
 241/// Permanently deletes the selected file or directory.
 242#[derive(PartialEq, Clone, Default, Debug, Deserialize, JsonSchema, Action)]
 243#[action(namespace = project_panel)]
 244#[serde(deny_unknown_fields)]
 245struct Delete {
 246    #[serde(default)]
 247    pub skip_prompt: bool,
 248}
 249
 250/// Moves the selected file or directory to the system trash.
 251#[derive(PartialEq, Clone, Default, Debug, Deserialize, JsonSchema, Action)]
 252#[action(namespace = project_panel)]
 253#[serde(deny_unknown_fields)]
 254struct Trash {
 255    #[serde(default)]
 256    pub skip_prompt: bool,
 257}
 258
 259/// Selects the next entry with diagnostics.
 260#[derive(PartialEq, Clone, Default, Debug, Deserialize, JsonSchema, Action)]
 261#[action(namespace = project_panel)]
 262#[serde(deny_unknown_fields)]
 263struct SelectNextDiagnostic {
 264    #[serde(default)]
 265    pub severity: GoToDiagnosticSeverityFilter,
 266}
 267
 268/// Selects the previous entry with diagnostics.
 269#[derive(PartialEq, Clone, Default, Debug, Deserialize, JsonSchema, Action)]
 270#[action(namespace = project_panel)]
 271#[serde(deny_unknown_fields)]
 272struct SelectPrevDiagnostic {
 273    #[serde(default)]
 274    pub severity: GoToDiagnosticSeverityFilter,
 275}
 276
 277actions!(
 278    project_panel,
 279    [
 280        /// Expands the selected entry in the project tree.
 281        ExpandSelectedEntry,
 282        /// Collapses the selected entry in the project tree.
 283        CollapseSelectedEntry,
 284        /// Collapses all entries in the project tree.
 285        CollapseAllEntries,
 286        /// Creates a new directory.
 287        NewDirectory,
 288        /// Creates a new file.
 289        NewFile,
 290        /// Copies the selected file or directory.
 291        Copy,
 292        /// Duplicates the selected file or directory.
 293        Duplicate,
 294        /// Reveals the selected item in the system file manager.
 295        RevealInFileManager,
 296        /// Removes the selected folder from the project.
 297        RemoveFromProject,
 298        /// Cuts the selected file or directory.
 299        Cut,
 300        /// Pastes the previously cut or copied item.
 301        Paste,
 302        /// Renames the selected file or directory.
 303        Rename,
 304        /// Opens the selected file in the editor.
 305        Open,
 306        /// Opens the selected file in a permanent tab.
 307        OpenPermanent,
 308        /// Opens the selected file in a vertical split.
 309        OpenSplitVertical,
 310        /// Opens the selected file in a horizontal split.
 311        OpenSplitHorizontal,
 312        /// Toggles visibility of git-ignored files.
 313        ToggleHideGitIgnore,
 314        /// Toggles visibility of hidden files.
 315        ToggleHideHidden,
 316        /// Starts a new search in the selected directory.
 317        NewSearchInDirectory,
 318        /// Unfolds the selected directory.
 319        UnfoldDirectory,
 320        /// Folds the selected directory.
 321        FoldDirectory,
 322        /// Scroll half a page upwards
 323        ScrollUp,
 324        /// Scroll half a page downwards
 325        ScrollDown,
 326        /// Scroll until the cursor displays at the center
 327        ScrollCursorCenter,
 328        /// Scroll until the cursor displays at the top
 329        ScrollCursorTop,
 330        /// Scroll until the cursor displays at the bottom
 331        ScrollCursorBottom,
 332        /// Selects the parent directory.
 333        SelectParent,
 334        /// Selects the next entry with git changes.
 335        SelectNextGitEntry,
 336        /// Selects the previous entry with git changes.
 337        SelectPrevGitEntry,
 338        /// Selects the next directory.
 339        SelectNextDirectory,
 340        /// Selects the previous directory.
 341        SelectPrevDirectory,
 342        /// Opens a diff view to compare two marked files.
 343        CompareMarkedFiles,
 344    ]
 345);
 346
 347#[derive(Clone, Debug, Default)]
 348struct FoldedAncestors {
 349    current_ancestor_depth: usize,
 350    ancestors: Vec<ProjectEntryId>,
 351}
 352
 353impl FoldedAncestors {
 354    fn max_ancestor_depth(&self) -> usize {
 355        self.ancestors.len()
 356    }
 357
 358    /// Note: This returns None for last item in ancestors list
 359    fn active_ancestor(&self) -> Option<ProjectEntryId> {
 360        if self.current_ancestor_depth == 0 {
 361            return None;
 362        }
 363        self.ancestors.get(self.current_ancestor_depth).copied()
 364    }
 365
 366    fn active_index(&self) -> usize {
 367        self.max_ancestor_depth()
 368            .saturating_sub(1)
 369            .saturating_sub(self.current_ancestor_depth)
 370    }
 371
 372    fn active_component(&self, file_name: &str) -> Option<String> {
 373        Path::new(file_name)
 374            .components()
 375            .nth(self.active_index())
 376            .map(|comp| comp.as_os_str().to_string_lossy().into_owned())
 377    }
 378}
 379
 380pub fn init(cx: &mut App) {
 381    cx.observe_new(|workspace: &mut Workspace, _, _| {
 382        workspace.register_action(|workspace, _: &ToggleFocus, window, cx| {
 383            workspace.toggle_panel_focus::<ProjectPanel>(window, cx);
 384        });
 385
 386        workspace.register_action(|workspace, _: &ToggleHideGitIgnore, _, cx| {
 387            let fs = workspace.app_state().fs.clone();
 388            update_settings_file(fs, cx, move |setting, _| {
 389                setting.project_panel.get_or_insert_default().hide_gitignore = Some(
 390                    !setting
 391                        .project_panel
 392                        .get_or_insert_default()
 393                        .hide_gitignore
 394                        .unwrap_or(false),
 395                );
 396            })
 397        });
 398
 399        workspace.register_action(|workspace, _: &ToggleHideHidden, _, cx| {
 400            let fs = workspace.app_state().fs.clone();
 401            update_settings_file(fs, cx, move |setting, _| {
 402                setting.project_panel.get_or_insert_default().hide_hidden = Some(
 403                    !setting
 404                        .project_panel
 405                        .get_or_insert_default()
 406                        .hide_hidden
 407                        .unwrap_or(false),
 408                );
 409            })
 410        });
 411
 412        workspace.register_action(|workspace, action: &CollapseAllEntries, window, cx| {
 413            if let Some(panel) = workspace.panel::<ProjectPanel>(cx) {
 414                panel.update(cx, |panel, cx| {
 415                    panel.collapse_all_entries(action, window, cx);
 416                });
 417            }
 418        });
 419
 420        workspace.register_action(|workspace, action: &Rename, window, cx| {
 421            workspace.open_panel::<ProjectPanel>(window, cx);
 422            if let Some(panel) = workspace.panel::<ProjectPanel>(cx) {
 423                panel.update(cx, |panel, cx| {
 424                    if let Some(first_marked) = panel.marked_entries.first() {
 425                        let first_marked = *first_marked;
 426                        panel.marked_entries.clear();
 427                        panel.state.selection = Some(first_marked);
 428                    }
 429                    panel.rename(action, window, cx);
 430                });
 431            }
 432        });
 433
 434        workspace.register_action(|workspace, action: &Duplicate, window, cx| {
 435            workspace.open_panel::<ProjectPanel>(window, cx);
 436            if let Some(panel) = workspace.panel::<ProjectPanel>(cx) {
 437                panel.update(cx, |panel, cx| {
 438                    panel.duplicate(action, window, cx);
 439                });
 440            }
 441        });
 442
 443        workspace.register_action(|workspace, action: &Delete, window, cx| {
 444            if let Some(panel) = workspace.panel::<ProjectPanel>(cx) {
 445                panel.update(cx, |panel, cx| panel.delete(action, window, cx));
 446            }
 447        });
 448
 449        workspace.register_action(|workspace, _: &git::FileHistory, window, cx| {
 450            // First try to get from project panel if it's focused
 451            if let Some(panel) = workspace.panel::<ProjectPanel>(cx) {
 452                let maybe_project_path = panel.read(cx).state.selection.and_then(|selection| {
 453                    let project = workspace.project().read(cx);
 454                    let worktree = project.worktree_for_id(selection.worktree_id, cx)?;
 455                    let entry = worktree.read(cx).entry_for_id(selection.entry_id)?;
 456                    if entry.is_file() {
 457                        Some(ProjectPath {
 458                            worktree_id: selection.worktree_id,
 459                            path: entry.path.clone(),
 460                        })
 461                    } else {
 462                        None
 463                    }
 464                });
 465
 466                if let Some(project_path) = maybe_project_path {
 467                    let project = workspace.project();
 468                    let git_store = project.read(cx).git_store();
 469                    if let Some((repo, repo_path)) = git_store
 470                        .read(cx)
 471                        .repository_and_path_for_project_path(&project_path, cx)
 472                    {
 473                        git_ui::file_history_view::FileHistoryView::open(
 474                            repo_path,
 475                            git_store.downgrade(),
 476                            repo.downgrade(),
 477                            workspace.weak_handle(),
 478                            window,
 479                            cx,
 480                        );
 481                        return;
 482                    }
 483                }
 484            }
 485
 486            // Fallback: try to get from active editor
 487            if let Some(active_item) = workspace.active_item(cx)
 488                && let Some(editor) = active_item.downcast::<Editor>()
 489                && let Some(buffer) = editor.read(cx).buffer().read(cx).as_singleton()
 490                && let Some(file) = buffer.read(cx).file()
 491            {
 492                let worktree_id = file.worktree_id(cx);
 493                let project_path = ProjectPath {
 494                    worktree_id,
 495                    path: file.path().clone(),
 496                };
 497                let project = workspace.project();
 498                let git_store = project.read(cx).git_store();
 499                if let Some((repo, repo_path)) = git_store
 500                    .read(cx)
 501                    .repository_and_path_for_project_path(&project_path, cx)
 502                {
 503                    git_ui::file_history_view::FileHistoryView::open(
 504                        repo_path,
 505                        git_store.downgrade(),
 506                        repo.downgrade(),
 507                        workspace.weak_handle(),
 508                        window,
 509                        cx,
 510                    );
 511                }
 512            }
 513        });
 514    })
 515    .detach();
 516}
 517
 518#[derive(Debug)]
 519pub enum Event {
 520    OpenedEntry {
 521        entry_id: ProjectEntryId,
 522        focus_opened_item: bool,
 523        allow_preview: bool,
 524    },
 525    SplitEntry {
 526        entry_id: ProjectEntryId,
 527        allow_preview: bool,
 528        split_direction: Option<SplitDirection>,
 529    },
 530    Focus,
 531}
 532
 533#[derive(Serialize, Deserialize)]
 534struct SerializedProjectPanel {
 535    width: Option<Pixels>,
 536}
 537
 538struct DraggedProjectEntryView {
 539    selection: SelectedEntry,
 540    icon: Option<SharedString>,
 541    filename: String,
 542    click_offset: Point<Pixels>,
 543    selections: Arc<[SelectedEntry]>,
 544}
 545
 546struct ItemColors {
 547    default: Hsla,
 548    hover: Hsla,
 549    drag_over: Hsla,
 550    marked: Hsla,
 551    focused: Hsla,
 552}
 553
 554fn get_item_color(is_sticky: bool, cx: &App) -> ItemColors {
 555    let colors = cx.theme().colors();
 556
 557    ItemColors {
 558        default: if is_sticky {
 559            colors.panel_overlay_background
 560        } else {
 561            colors.panel_background
 562        },
 563        hover: if is_sticky {
 564            colors.panel_overlay_hover
 565        } else {
 566            colors.element_hover
 567        },
 568        marked: colors.element_selected,
 569        focused: colors.panel_focused_border,
 570        drag_over: colors.drop_target_background,
 571    }
 572}
 573
 574impl ProjectPanel {
 575    fn new(
 576        workspace: &mut Workspace,
 577        window: &mut Window,
 578        cx: &mut Context<Workspace>,
 579    ) -> Entity<Self> {
 580        let project = workspace.project().clone();
 581        let git_store = project.read(cx).git_store().clone();
 582        let path_style = project.read(cx).path_style(cx);
 583        let project_panel = cx.new(|cx| {
 584            let focus_handle = cx.focus_handle();
 585            cx.on_focus(&focus_handle, window, Self::focus_in).detach();
 586
 587            cx.subscribe_in(
 588                &git_store,
 589                window,
 590                |this, _, event, window, cx| match event {
 591                    GitStoreEvent::RepositoryUpdated(_, RepositoryEvent::StatusesChanged, _)
 592                    | GitStoreEvent::RepositoryAdded
 593                    | GitStoreEvent::RepositoryRemoved(_) => {
 594                        this.update_visible_entries(None, false, false, window, cx);
 595                        cx.notify();
 596                    }
 597                    _ => {}
 598                },
 599            )
 600            .detach();
 601
 602            cx.subscribe_in(
 603                &project,
 604                window,
 605                |this, project, event, window, cx| match event {
 606                    project::Event::ActiveEntryChanged(Some(entry_id)) => {
 607                        if ProjectPanelSettings::get_global(cx).auto_reveal_entries {
 608                            this.reveal_entry(project.clone(), *entry_id, true, window, cx)
 609                                .ok();
 610                        }
 611                    }
 612                    project::Event::ActiveEntryChanged(None) => {
 613                        let is_active_item_file_diff_view = this
 614                            .workspace
 615                            .upgrade()
 616                            .and_then(|ws| ws.read(cx).active_item(cx))
 617                            .map(|item| {
 618                                item.act_as_type(TypeId::of::<FileDiffView>(), cx).is_some()
 619                            })
 620                            .unwrap_or(false);
 621                        if !is_active_item_file_diff_view {
 622                            this.marked_entries.clear();
 623                        }
 624                    }
 625                    project::Event::RevealInProjectPanel(entry_id) => {
 626                        if let Some(()) = this
 627                            .reveal_entry(project.clone(), *entry_id, false, window, cx)
 628                            .log_err()
 629                        {
 630                            cx.emit(PanelEvent::Activate);
 631                        }
 632                    }
 633                    project::Event::ActivateProjectPanel => {
 634                        cx.emit(PanelEvent::Activate);
 635                    }
 636                    project::Event::DiskBasedDiagnosticsFinished { .. }
 637                    | project::Event::DiagnosticsUpdated { .. } => {
 638                        if ProjectPanelSettings::get_global(cx).show_diagnostics
 639                            != ShowDiagnostics::Off
 640                        {
 641                            this.diagnostic_summary_update = cx.spawn(async move |this, cx| {
 642                                cx.background_executor()
 643                                    .timer(Duration::from_millis(30))
 644                                    .await;
 645                                this.update(cx, |this, cx| {
 646                                    this.update_diagnostics(cx);
 647                                    cx.notify();
 648                                })
 649                                .log_err();
 650                            });
 651                        }
 652                    }
 653                    project::Event::WorktreeRemoved(id) => {
 654                        this.state.expanded_dir_ids.remove(id);
 655                        this.update_visible_entries(None, false, false, window, cx);
 656                        cx.notify();
 657                    }
 658                    project::Event::WorktreeUpdatedEntries(_, _)
 659                    | project::Event::WorktreeAdded(_)
 660                    | project::Event::WorktreeOrderChanged => {
 661                        this.update_visible_entries(None, false, false, window, cx);
 662                        cx.notify();
 663                    }
 664                    project::Event::ExpandedAllForEntry(worktree_id, entry_id) => {
 665                        if let Some((worktree, expanded_dir_ids)) = project
 666                            .read(cx)
 667                            .worktree_for_id(*worktree_id, cx)
 668                            .zip(this.state.expanded_dir_ids.get_mut(worktree_id))
 669                        {
 670                            let worktree = worktree.read(cx);
 671
 672                            let Some(entry) = worktree.entry_for_id(*entry_id) else {
 673                                return;
 674                            };
 675                            let include_ignored_dirs = !entry.is_ignored;
 676
 677                            let mut dirs_to_expand = vec![*entry_id];
 678                            while let Some(current_id) = dirs_to_expand.pop() {
 679                                let Some(current_entry) = worktree.entry_for_id(current_id) else {
 680                                    continue;
 681                                };
 682                                for child in worktree.child_entries(&current_entry.path) {
 683                                    if !child.is_dir() || (include_ignored_dirs && child.is_ignored)
 684                                    {
 685                                        continue;
 686                                    }
 687
 688                                    dirs_to_expand.push(child.id);
 689
 690                                    if let Err(ix) = expanded_dir_ids.binary_search(&child.id) {
 691                                        expanded_dir_ids.insert(ix, child.id);
 692                                    }
 693                                    this.state.unfolded_dir_ids.insert(child.id);
 694                                }
 695                            }
 696                            this.update_visible_entries(None, false, false, window, cx);
 697                            cx.notify();
 698                        }
 699                    }
 700                    _ => {}
 701                },
 702            )
 703            .detach();
 704
 705            let trash_action = [TypeId::of::<Trash>()];
 706            let is_remote = project.read(cx).is_remote();
 707
 708            // Make sure the trash option is never displayed anywhere on remote
 709            // hosts since they may not support trashing. May want to dynamically
 710            // detect this in the future.
 711            if is_remote {
 712                CommandPaletteFilter::update_global(cx, |filter, _cx| {
 713                    filter.hide_action_types(&trash_action);
 714                });
 715            }
 716
 717            let filename_editor = cx.new(|cx| Editor::single_line(window, cx));
 718
 719            cx.subscribe_in(
 720                &filename_editor,
 721                window,
 722                |project_panel, _, editor_event, window, cx| match editor_event {
 723                    EditorEvent::BufferEdited => {
 724                        project_panel.populate_validation_error(cx);
 725                        project_panel.autoscroll(cx);
 726                    }
 727                    EditorEvent::SelectionsChanged { .. } => {
 728                        project_panel.autoscroll(cx);
 729                    }
 730                    EditorEvent::Blurred => {
 731                        if project_panel
 732                            .state
 733                            .edit_state
 734                            .as_ref()
 735                            .is_some_and(|state| state.processing_filename.is_none())
 736                        {
 737                            match project_panel.confirm_edit(false, window, cx) {
 738                                Some(task) => {
 739                                    task.detach_and_notify_err(window, cx);
 740                                }
 741                                None => {
 742                                    project_panel.state.edit_state = None;
 743                                    project_panel
 744                                        .update_visible_entries(None, false, false, window, cx);
 745                                    cx.notify();
 746                                }
 747                            }
 748                        }
 749                    }
 750                    _ => {}
 751                },
 752            )
 753            .detach();
 754
 755            cx.observe_global::<FileIcons>(|_, cx| {
 756                cx.notify();
 757            })
 758            .detach();
 759
 760            let mut project_panel_settings = *ProjectPanelSettings::get_global(cx);
 761            cx.observe_global_in::<SettingsStore>(window, move |this, window, cx| {
 762                let new_settings = *ProjectPanelSettings::get_global(cx);
 763                if project_panel_settings != new_settings {
 764                    if project_panel_settings.hide_gitignore != new_settings.hide_gitignore {
 765                        this.update_visible_entries(None, false, false, window, cx);
 766                    }
 767                    if project_panel_settings.hide_root != new_settings.hide_root {
 768                        this.update_visible_entries(None, false, false, window, cx);
 769                    }
 770                    if project_panel_settings.hide_hidden != new_settings.hide_hidden {
 771                        this.update_visible_entries(None, false, false, window, cx);
 772                    }
 773                    if project_panel_settings.sort_mode != new_settings.sort_mode {
 774                        this.update_visible_entries(None, false, false, window, cx);
 775                    }
 776                    if project_panel_settings.sticky_scroll && !new_settings.sticky_scroll {
 777                        this.sticky_items_count = 0;
 778                    }
 779                    project_panel_settings = new_settings;
 780                    this.update_diagnostics(cx);
 781                    cx.notify();
 782                }
 783            })
 784            .detach();
 785
 786            let scroll_handle = UniformListScrollHandle::new();
 787            let mut this = Self {
 788                project: project.clone(),
 789                hover_scroll_task: None,
 790                fs: workspace.app_state().fs.clone(),
 791                focus_handle,
 792                rendered_entries_len: 0,
 793                folded_directory_drag_target: None,
 794                drag_target_entry: None,
 795
 796                marked_entries: Default::default(),
 797                context_menu: None,
 798                filename_editor,
 799                clipboard: None,
 800                _dragged_entry_destination: None,
 801                workspace: workspace.weak_handle(),
 802                width: None,
 803                pending_serialization: Task::ready(None),
 804                diagnostics: Default::default(),
 805                diagnostic_summary_update: Task::ready(()),
 806                scroll_handle,
 807                mouse_down: false,
 808                hover_expand_task: None,
 809                previous_drag_position: None,
 810                sticky_items_count: 0,
 811                last_reported_update: Instant::now(),
 812                state: State {
 813                    max_width_item_index: None,
 814                    edit_state: None,
 815                    selection: None,
 816                    last_worktree_root_id: Default::default(),
 817                    visible_entries: Default::default(),
 818                    ancestors: Default::default(),
 819                    expanded_dir_ids: Default::default(),
 820                    unfolded_dir_ids: Default::default(),
 821                },
 822                update_visible_entries_task: Default::default(),
 823            };
 824            this.update_visible_entries(None, false, false, window, cx);
 825
 826            this
 827        });
 828
 829        cx.subscribe_in(&project_panel, window, {
 830            let project_panel = project_panel.downgrade();
 831            move |workspace, _, event, window, cx| match event {
 832                &Event::OpenedEntry {
 833                    entry_id,
 834                    focus_opened_item,
 835                    allow_preview,
 836                } => {
 837                    if let Some(worktree) = project.read(cx).worktree_for_entry(entry_id, cx)
 838                        && let Some(entry) = worktree.read(cx).entry_for_id(entry_id) {
 839                            let file_path = entry.path.clone();
 840                            let worktree_id = worktree.read(cx).id();
 841                            let entry_id = entry.id;
 842                            let is_via_ssh = project.read(cx).is_via_remote_server();
 843
 844                            workspace
 845                                .open_path_preview(
 846                                    ProjectPath {
 847                                        worktree_id,
 848                                        path: file_path.clone(),
 849                                    },
 850                                    None,
 851                                    focus_opened_item,
 852                                    allow_preview,
 853                                    true,
 854                                    window, cx,
 855                                )
 856                                .detach_and_prompt_err("Failed to open file", window, cx, move |e, _, _| {
 857                                    match e.error_code() {
 858                                        ErrorCode::Disconnected => if is_via_ssh {
 859                                            Some("Disconnected from SSH host".to_string())
 860                                        } else {
 861                                            Some("Disconnected from remote project".to_string())
 862                                        },
 863                                        ErrorCode::UnsharedItem => Some(format!(
 864                                            "{} is not shared by the host. This could be because it has been marked as `private`",
 865                                            file_path.display(path_style)
 866                                        )),
 867                                        // See note in worktree.rs where this error originates. Returning Some in this case prevents
 868                                        // the error popup from saying "Try Again", which is a red herring in this case
 869                                        ErrorCode::Internal if e.to_string().contains("File is too large to load") => Some(e.to_string()),
 870                                        _ => None,
 871                                    }
 872                                });
 873
 874                            if let Some(project_panel) = project_panel.upgrade() {
 875                                // Always select and mark the entry, regardless of whether it is opened or not.
 876                                project_panel.update(cx, |project_panel, _| {
 877                                    let entry = SelectedEntry { worktree_id, entry_id };
 878                                    project_panel.marked_entries.clear();
 879                                    project_panel.marked_entries.push(entry);
 880                                    project_panel.state.selection = Some(entry);
 881                                });
 882                                if !focus_opened_item {
 883                                    let focus_handle = project_panel.read(cx).focus_handle.clone();
 884                                    window.focus(&focus_handle, cx);
 885                                }
 886                            }
 887                        }
 888                }
 889                &Event::SplitEntry {
 890                    entry_id,
 891                    allow_preview,
 892                    split_direction,
 893                } => {
 894                    if let Some(worktree) = project.read(cx).worktree_for_entry(entry_id, cx)
 895                        && let Some(entry) = worktree.read(cx).entry_for_id(entry_id) {
 896                            workspace
 897                                .split_path_preview(
 898                                    ProjectPath {
 899                                        worktree_id: worktree.read(cx).id(),
 900                                        path: entry.path.clone(),
 901                                    },
 902                                    allow_preview,
 903                                    split_direction,
 904                                    window, cx,
 905                                )
 906                                .detach_and_log_err(cx);
 907                        }
 908                }
 909
 910                _ => {}
 911            }
 912        })
 913        .detach();
 914
 915        project_panel
 916    }
 917
 918    pub async fn load(
 919        workspace: WeakEntity<Workspace>,
 920        mut cx: AsyncWindowContext,
 921    ) -> Result<Entity<Self>> {
 922        let serialized_panel = match workspace
 923            .read_with(&cx, |workspace, _| {
 924                ProjectPanel::serialization_key(workspace)
 925            })
 926            .ok()
 927            .flatten()
 928        {
 929            Some(serialization_key) => cx
 930                .background_spawn(async move { KEY_VALUE_STORE.read_kvp(&serialization_key) })
 931                .await
 932                .context("loading project panel")
 933                .log_err()
 934                .flatten()
 935                .map(|panel| serde_json::from_str::<SerializedProjectPanel>(&panel))
 936                .transpose()
 937                .log_err()
 938                .flatten(),
 939            None => None,
 940        };
 941
 942        workspace.update_in(&mut cx, |workspace, window, cx| {
 943            let panel = ProjectPanel::new(workspace, window, cx);
 944            if let Some(serialized_panel) = serialized_panel {
 945                panel.update(cx, |panel, cx| {
 946                    panel.width = serialized_panel.width.map(|px| px.round());
 947                    cx.notify();
 948                });
 949            }
 950            panel
 951        })
 952    }
 953
 954    fn update_diagnostics(&mut self, cx: &mut Context<Self>) {
 955        let mut diagnostics: HashMap<(WorktreeId, Arc<RelPath>), DiagnosticSeverity> =
 956            Default::default();
 957        let show_diagnostics_setting = ProjectPanelSettings::get_global(cx).show_diagnostics;
 958
 959        if show_diagnostics_setting != ShowDiagnostics::Off {
 960            self.project
 961                .read(cx)
 962                .diagnostic_summaries(false, cx)
 963                .filter_map(|(path, _, diagnostic_summary)| {
 964                    if diagnostic_summary.error_count > 0 {
 965                        Some((path, DiagnosticSeverity::ERROR))
 966                    } else if show_diagnostics_setting == ShowDiagnostics::All
 967                        && diagnostic_summary.warning_count > 0
 968                    {
 969                        Some((path, DiagnosticSeverity::WARNING))
 970                    } else {
 971                        None
 972                    }
 973                })
 974                .for_each(|(project_path, diagnostic_severity)| {
 975                    let ancestors = project_path.path.ancestors().collect::<Vec<_>>();
 976                    for path in ancestors.into_iter().rev() {
 977                        Self::update_strongest_diagnostic_severity(
 978                            &mut diagnostics,
 979                            &project_path,
 980                            path.into(),
 981                            diagnostic_severity,
 982                        );
 983                    }
 984                });
 985        }
 986        self.diagnostics = diagnostics;
 987    }
 988
 989    fn update_strongest_diagnostic_severity(
 990        diagnostics: &mut HashMap<(WorktreeId, Arc<RelPath>), DiagnosticSeverity>,
 991        project_path: &ProjectPath,
 992        path_buffer: Arc<RelPath>,
 993        diagnostic_severity: DiagnosticSeverity,
 994    ) {
 995        diagnostics
 996            .entry((project_path.worktree_id, path_buffer))
 997            .and_modify(|strongest_diagnostic_severity| {
 998                *strongest_diagnostic_severity =
 999                    cmp::min(*strongest_diagnostic_severity, diagnostic_severity);
1000            })
1001            .or_insert(diagnostic_severity);
1002    }
1003
1004    fn serialization_key(workspace: &Workspace) -> Option<String> {
1005        workspace
1006            .database_id()
1007            .map(|id| i64::from(id).to_string())
1008            .or(workspace.session_id())
1009            .map(|id| format!("{}-{:?}", PROJECT_PANEL_KEY, id))
1010    }
1011
1012    fn serialize(&mut self, cx: &mut Context<Self>) {
1013        let Some(serialization_key) = self
1014            .workspace
1015            .read_with(cx, |workspace, _| {
1016                ProjectPanel::serialization_key(workspace)
1017            })
1018            .ok()
1019            .flatten()
1020        else {
1021            return;
1022        };
1023        let width = self.width;
1024        self.pending_serialization = cx.background_spawn(
1025            async move {
1026                KEY_VALUE_STORE
1027                    .write_kvp(
1028                        serialization_key,
1029                        serde_json::to_string(&SerializedProjectPanel { width })?,
1030                    )
1031                    .await?;
1032                anyhow::Ok(())
1033            }
1034            .log_err(),
1035        );
1036    }
1037
1038    fn focus_in(&mut self, window: &mut Window, cx: &mut Context<Self>) {
1039        if !self.focus_handle.contains_focused(window, cx) {
1040            cx.emit(Event::Focus);
1041        }
1042    }
1043
1044    fn deploy_context_menu(
1045        &mut self,
1046        position: Point<Pixels>,
1047        entry_id: ProjectEntryId,
1048        window: &mut Window,
1049        cx: &mut Context<Self>,
1050    ) {
1051        let project = self.project.read(cx);
1052
1053        let worktree_id = if let Some(id) = project.worktree_id_for_entry(entry_id, cx) {
1054            id
1055        } else {
1056            return;
1057        };
1058
1059        self.state.selection = Some(SelectedEntry {
1060            worktree_id,
1061            entry_id,
1062        });
1063
1064        if let Some((worktree, entry)) = self.selected_sub_entry(cx) {
1065            let auto_fold_dirs = ProjectPanelSettings::get_global(cx).auto_fold_dirs;
1066            let worktree = worktree.read(cx);
1067            let is_root = Some(entry) == worktree.root_entry();
1068            let is_dir = entry.is_dir();
1069            let is_foldable = auto_fold_dirs && self.is_foldable(entry, worktree);
1070            let is_unfoldable = auto_fold_dirs && self.is_unfoldable(entry, worktree);
1071            let is_read_only = project.is_read_only(cx);
1072            let is_remote = project.is_remote();
1073            let is_local = project.is_local();
1074
1075            let settings = ProjectPanelSettings::get_global(cx);
1076            let visible_worktrees_count = project.visible_worktrees(cx).count();
1077            let should_hide_rename = is_root
1078                && (cfg!(target_os = "windows")
1079                    || (settings.hide_root && visible_worktrees_count == 1));
1080            let should_show_compare = !is_dir && self.file_abs_paths_to_diff(cx).is_some();
1081
1082            let has_git_repo = !is_dir && {
1083                let project_path = project::ProjectPath {
1084                    worktree_id,
1085                    path: entry.path.clone(),
1086                };
1087                project
1088                    .git_store()
1089                    .read(cx)
1090                    .repository_and_path_for_project_path(&project_path, cx)
1091                    .is_some()
1092            };
1093
1094            let context_menu = ContextMenu::build(window, cx, |menu, _, _| {
1095                menu.context(self.focus_handle.clone()).map(|menu| {
1096                    if is_read_only {
1097                        menu.when(is_dir, |menu| {
1098                            menu.action("Search Inside", Box::new(NewSearchInDirectory))
1099                        })
1100                    } else {
1101                        menu.action("New File", Box::new(NewFile))
1102                            .action("New Folder", Box::new(NewDirectory))
1103                            .separator()
1104                            .when(is_local && cfg!(target_os = "macos"), |menu| {
1105                                menu.action("Reveal in Finder", Box::new(RevealInFileManager))
1106                            })
1107                            .when(is_local && cfg!(not(target_os = "macos")), |menu| {
1108                                menu.action("Reveal in File Manager", Box::new(RevealInFileManager))
1109                            })
1110                            .when(is_local, |menu| {
1111                                menu.action("Open in Default App", Box::new(OpenWithSystem))
1112                            })
1113                            .action("Open in Terminal", Box::new(OpenInTerminal))
1114                            .when(is_dir, |menu| {
1115                                menu.separator()
1116                                    .action("Find in Folder…", Box::new(NewSearchInDirectory))
1117                            })
1118                            .when(is_unfoldable, |menu| {
1119                                menu.action("Unfold Directory", Box::new(UnfoldDirectory))
1120                            })
1121                            .when(is_foldable, |menu| {
1122                                menu.action("Fold Directory", Box::new(FoldDirectory))
1123                            })
1124                            .when(should_show_compare, |menu| {
1125                                menu.separator()
1126                                    .action("Compare marked files", Box::new(CompareMarkedFiles))
1127                            })
1128                            .separator()
1129                            .action("Cut", Box::new(Cut))
1130                            .action("Copy", Box::new(Copy))
1131                            .action("Duplicate", Box::new(Duplicate))
1132                            // TODO: Paste should always be visible, cbut disabled when clipboard is empty
1133                            .action_disabled_when(
1134                                self.clipboard.as_ref().is_none(),
1135                                "Paste",
1136                                Box::new(Paste),
1137                            )
1138                            .separator()
1139                            .action("Copy Path", Box::new(zed_actions::workspace::CopyPath))
1140                            .action(
1141                                "Copy Relative Path",
1142                                Box::new(zed_actions::workspace::CopyRelativePath),
1143                            )
1144                            .when(!is_dir && self.has_git_changes(entry_id), |menu| {
1145                                menu.separator().action(
1146                                    "Restore File",
1147                                    Box::new(git::RestoreFile { skip_prompt: false }),
1148                                )
1149                            })
1150                            .when(has_git_repo, |menu| {
1151                                menu.separator()
1152                                    .action("View File History", Box::new(git::FileHistory))
1153                            })
1154                            .when(!should_hide_rename, |menu| {
1155                                menu.separator().action("Rename", Box::new(Rename))
1156                            })
1157                            .when(!is_root && !is_remote, |menu| {
1158                                menu.action("Trash", Box::new(Trash { skip_prompt: false }))
1159                            })
1160                            .when(!is_root, |menu| {
1161                                menu.action("Delete", Box::new(Delete { skip_prompt: false }))
1162                            })
1163                            .when(!is_remote && is_root, |menu| {
1164                                menu.separator()
1165                                    .action(
1166                                        "Add Folder to Project…",
1167                                        Box::new(workspace::AddFolderToProject),
1168                                    )
1169                                    .action("Remove from Project", Box::new(RemoveFromProject))
1170                            })
1171                            .when(is_root, |menu| {
1172                                menu.separator()
1173                                    .action("Collapse All", Box::new(CollapseAllEntries))
1174                            })
1175                    }
1176                })
1177            });
1178
1179            window.focus(&context_menu.focus_handle(cx), cx);
1180            let subscription = cx.subscribe(&context_menu, |this, _, _: &DismissEvent, cx| {
1181                this.context_menu.take();
1182                cx.notify();
1183            });
1184            self.context_menu = Some((context_menu, position, subscription));
1185        }
1186
1187        cx.notify();
1188    }
1189
1190    fn has_git_changes(&self, entry_id: ProjectEntryId) -> bool {
1191        for visible in &self.state.visible_entries {
1192            if let Some(git_entry) = visible.entries.iter().find(|e| e.id == entry_id) {
1193                let total_modified =
1194                    git_entry.git_summary.index.modified + git_entry.git_summary.worktree.modified;
1195                let total_deleted =
1196                    git_entry.git_summary.index.deleted + git_entry.git_summary.worktree.deleted;
1197                return total_modified > 0 || total_deleted > 0;
1198            }
1199        }
1200        false
1201    }
1202
1203    fn is_unfoldable(&self, entry: &Entry, worktree: &Worktree) -> bool {
1204        if !entry.is_dir() || self.state.unfolded_dir_ids.contains(&entry.id) {
1205            return false;
1206        }
1207
1208        if let Some(parent_path) = entry.path.parent() {
1209            let snapshot = worktree.snapshot();
1210            let mut child_entries = snapshot.child_entries(parent_path);
1211            if let Some(child) = child_entries.next()
1212                && child_entries.next().is_none()
1213            {
1214                return child.kind.is_dir();
1215            }
1216        };
1217        false
1218    }
1219
1220    fn is_foldable(&self, entry: &Entry, worktree: &Worktree) -> bool {
1221        if entry.is_dir() {
1222            let snapshot = worktree.snapshot();
1223
1224            let mut child_entries = snapshot.child_entries(&entry.path);
1225            if let Some(child) = child_entries.next()
1226                && child_entries.next().is_none()
1227            {
1228                return child.kind.is_dir();
1229            }
1230        }
1231        false
1232    }
1233
1234    fn expand_selected_entry(
1235        &mut self,
1236        _: &ExpandSelectedEntry,
1237        window: &mut Window,
1238        cx: &mut Context<Self>,
1239    ) {
1240        if let Some((worktree, entry)) = self.selected_entry(cx) {
1241            if let Some(folded_ancestors) = self.state.ancestors.get_mut(&entry.id)
1242                && folded_ancestors.current_ancestor_depth > 0
1243            {
1244                folded_ancestors.current_ancestor_depth -= 1;
1245                cx.notify();
1246                return;
1247            }
1248            if entry.is_dir() {
1249                let worktree_id = worktree.id();
1250                let entry_id = entry.id;
1251                let expanded_dir_ids = if let Some(expanded_dir_ids) =
1252                    self.state.expanded_dir_ids.get_mut(&worktree_id)
1253                {
1254                    expanded_dir_ids
1255                } else {
1256                    return;
1257                };
1258
1259                match expanded_dir_ids.binary_search(&entry_id) {
1260                    Ok(_) => self.select_next(&SelectNext, window, cx),
1261                    Err(ix) => {
1262                        self.project.update(cx, |project, cx| {
1263                            project.expand_entry(worktree_id, entry_id, cx);
1264                        });
1265
1266                        expanded_dir_ids.insert(ix, entry_id);
1267                        self.update_visible_entries(None, false, false, window, cx);
1268                        cx.notify();
1269                    }
1270                }
1271            }
1272        }
1273    }
1274
1275    fn collapse_selected_entry(
1276        &mut self,
1277        _: &CollapseSelectedEntry,
1278        window: &mut Window,
1279        cx: &mut Context<Self>,
1280    ) {
1281        let Some((worktree, entry)) = self.selected_entry_handle(cx) else {
1282            return;
1283        };
1284        self.collapse_entry(entry.clone(), worktree, window, cx)
1285    }
1286
1287    fn collapse_entry(
1288        &mut self,
1289        entry: Entry,
1290        worktree: Entity<Worktree>,
1291        window: &mut Window,
1292        cx: &mut Context<Self>,
1293    ) {
1294        let worktree = worktree.read(cx);
1295        if let Some(folded_ancestors) = self.state.ancestors.get_mut(&entry.id)
1296            && folded_ancestors.current_ancestor_depth + 1 < folded_ancestors.max_ancestor_depth()
1297        {
1298            folded_ancestors.current_ancestor_depth += 1;
1299            cx.notify();
1300            return;
1301        }
1302        let worktree_id = worktree.id();
1303        let expanded_dir_ids =
1304            if let Some(expanded_dir_ids) = self.state.expanded_dir_ids.get_mut(&worktree_id) {
1305                expanded_dir_ids
1306            } else {
1307                return;
1308            };
1309
1310        let mut entry = &entry;
1311        loop {
1312            let entry_id = entry.id;
1313            match expanded_dir_ids.binary_search(&entry_id) {
1314                Ok(ix) => {
1315                    expanded_dir_ids.remove(ix);
1316                    self.update_visible_entries(
1317                        Some((worktree_id, entry_id)),
1318                        false,
1319                        false,
1320                        window,
1321                        cx,
1322                    );
1323                    cx.notify();
1324                    break;
1325                }
1326                Err(_) => {
1327                    if let Some(parent_entry) =
1328                        entry.path.parent().and_then(|p| worktree.entry_for_path(p))
1329                    {
1330                        entry = parent_entry;
1331                    } else {
1332                        break;
1333                    }
1334                }
1335            }
1336        }
1337    }
1338
1339    pub fn collapse_all_entries(
1340        &mut self,
1341        _: &CollapseAllEntries,
1342        window: &mut Window,
1343        cx: &mut Context<Self>,
1344    ) {
1345        // By keeping entries for fully collapsed worktrees, we avoid expanding them within update_visible_entries
1346        // (which is it's default behavior when there's no entry for a worktree in expanded_dir_ids).
1347        let multiple_worktrees = self.project.read(cx).worktrees(cx).count() > 1;
1348        let project = self.project.read(cx);
1349
1350        self.state
1351            .expanded_dir_ids
1352            .iter_mut()
1353            .for_each(|(worktree_id, expanded_entries)| {
1354                if multiple_worktrees {
1355                    *expanded_entries = Default::default();
1356                    return;
1357                }
1358
1359                let root_entry_id = project
1360                    .worktree_for_id(*worktree_id, cx)
1361                    .map(|worktree| worktree.read(cx).snapshot())
1362                    .and_then(|worktree_snapshot| {
1363                        worktree_snapshot.root_entry().map(|entry| entry.id)
1364                    });
1365
1366                match root_entry_id {
1367                    Some(id) => {
1368                        expanded_entries.retain(|entry_id| entry_id == &id);
1369                    }
1370                    None => *expanded_entries = Default::default(),
1371                };
1372            });
1373
1374        self.update_visible_entries(None, false, false, window, cx);
1375        cx.notify();
1376    }
1377
1378    fn toggle_expanded(
1379        &mut self,
1380        entry_id: ProjectEntryId,
1381        window: &mut Window,
1382        cx: &mut Context<Self>,
1383    ) {
1384        if let Some(worktree_id) = self.project.read(cx).worktree_id_for_entry(entry_id, cx)
1385            && let Some(expanded_dir_ids) = self.state.expanded_dir_ids.get_mut(&worktree_id)
1386        {
1387            self.project.update(cx, |project, cx| {
1388                match expanded_dir_ids.binary_search(&entry_id) {
1389                    Ok(ix) => {
1390                        expanded_dir_ids.remove(ix);
1391                    }
1392                    Err(ix) => {
1393                        project.expand_entry(worktree_id, entry_id, cx);
1394                        expanded_dir_ids.insert(ix, entry_id);
1395                    }
1396                }
1397            });
1398            self.update_visible_entries(Some((worktree_id, entry_id)), false, false, window, cx);
1399            window.focus(&self.focus_handle, cx);
1400            cx.notify();
1401        }
1402    }
1403
1404    fn toggle_expand_all(
1405        &mut self,
1406        entry_id: ProjectEntryId,
1407        window: &mut Window,
1408        cx: &mut Context<Self>,
1409    ) {
1410        if let Some(worktree_id) = self.project.read(cx).worktree_id_for_entry(entry_id, cx)
1411            && let Some(expanded_dir_ids) = self.state.expanded_dir_ids.get_mut(&worktree_id)
1412        {
1413            match expanded_dir_ids.binary_search(&entry_id) {
1414                Ok(_ix) => {
1415                    self.collapse_all_for_entry(worktree_id, entry_id, cx);
1416                }
1417                Err(_ix) => {
1418                    self.expand_all_for_entry(worktree_id, entry_id, cx);
1419                }
1420            }
1421            self.update_visible_entries(Some((worktree_id, entry_id)), false, false, window, cx);
1422            window.focus(&self.focus_handle, cx);
1423            cx.notify();
1424        }
1425    }
1426
1427    fn expand_all_for_entry(
1428        &mut self,
1429        worktree_id: WorktreeId,
1430        entry_id: ProjectEntryId,
1431        cx: &mut Context<Self>,
1432    ) {
1433        self.project.update(cx, |project, cx| {
1434            if let Some((worktree, expanded_dir_ids)) = project
1435                .worktree_for_id(worktree_id, cx)
1436                .zip(self.state.expanded_dir_ids.get_mut(&worktree_id))
1437            {
1438                if let Some(task) = project.expand_all_for_entry(worktree_id, entry_id, cx) {
1439                    task.detach();
1440                }
1441
1442                let worktree = worktree.read(cx);
1443
1444                if let Some(mut entry) = worktree.entry_for_id(entry_id) {
1445                    loop {
1446                        if let Err(ix) = expanded_dir_ids.binary_search(&entry.id) {
1447                            expanded_dir_ids.insert(ix, entry.id);
1448                        }
1449
1450                        if let Some(parent_entry) =
1451                            entry.path.parent().and_then(|p| worktree.entry_for_path(p))
1452                        {
1453                            entry = parent_entry;
1454                        } else {
1455                            break;
1456                        }
1457                    }
1458                }
1459            }
1460        });
1461    }
1462
1463    fn collapse_all_for_entry(
1464        &mut self,
1465        worktree_id: WorktreeId,
1466        entry_id: ProjectEntryId,
1467        cx: &mut Context<Self>,
1468    ) {
1469        self.project.update(cx, |project, cx| {
1470            if let Some((worktree, expanded_dir_ids)) = project
1471                .worktree_for_id(worktree_id, cx)
1472                .zip(self.state.expanded_dir_ids.get_mut(&worktree_id))
1473            {
1474                let worktree = worktree.read(cx);
1475                let mut dirs_to_collapse = vec![entry_id];
1476                let auto_fold_enabled = ProjectPanelSettings::get_global(cx).auto_fold_dirs;
1477                while let Some(current_id) = dirs_to_collapse.pop() {
1478                    let Some(current_entry) = worktree.entry_for_id(current_id) else {
1479                        continue;
1480                    };
1481                    if let Ok(ix) = expanded_dir_ids.binary_search(&current_id) {
1482                        expanded_dir_ids.remove(ix);
1483                    }
1484                    if auto_fold_enabled {
1485                        self.state.unfolded_dir_ids.remove(&current_id);
1486                    }
1487                    for child in worktree.child_entries(&current_entry.path) {
1488                        if child.is_dir() {
1489                            dirs_to_collapse.push(child.id);
1490                        }
1491                    }
1492                }
1493            }
1494        });
1495    }
1496
1497    fn select_previous(&mut self, _: &SelectPrevious, window: &mut Window, cx: &mut Context<Self>) {
1498        if let Some(edit_state) = &self.state.edit_state
1499            && edit_state.processing_filename.is_none()
1500        {
1501            self.filename_editor.update(cx, |editor, cx| {
1502                editor.move_to_beginning_of_line(
1503                    &editor::actions::MoveToBeginningOfLine {
1504                        stop_at_soft_wraps: false,
1505                        stop_at_indent: false,
1506                    },
1507                    window,
1508                    cx,
1509                );
1510            });
1511            return;
1512        }
1513        if let Some(selection) = self.state.selection {
1514            let (mut worktree_ix, mut entry_ix, _) =
1515                self.index_for_selection(selection).unwrap_or_default();
1516            if entry_ix > 0 {
1517                entry_ix -= 1;
1518            } else if worktree_ix > 0 {
1519                worktree_ix -= 1;
1520                entry_ix = self.state.visible_entries[worktree_ix].entries.len() - 1;
1521            } else {
1522                return;
1523            }
1524
1525            let VisibleEntriesForWorktree {
1526                worktree_id,
1527                entries,
1528                ..
1529            } = &self.state.visible_entries[worktree_ix];
1530            let selection = SelectedEntry {
1531                worktree_id: *worktree_id,
1532                entry_id: entries[entry_ix].id,
1533            };
1534            self.state.selection = Some(selection);
1535            if window.modifiers().shift {
1536                self.marked_entries.push(selection);
1537            }
1538            self.autoscroll(cx);
1539            cx.notify();
1540        } else {
1541            self.select_first(&SelectFirst {}, window, cx);
1542        }
1543    }
1544
1545    fn confirm(&mut self, _: &Confirm, window: &mut Window, cx: &mut Context<Self>) {
1546        if let Some(task) = self.confirm_edit(true, window, cx) {
1547            task.detach_and_notify_err(window, cx);
1548        }
1549    }
1550
1551    fn open(&mut self, _: &Open, window: &mut Window, cx: &mut Context<Self>) {
1552        let preview_tabs_enabled =
1553            PreviewTabsSettings::get_global(cx).enable_preview_from_project_panel;
1554        self.open_internal(true, !preview_tabs_enabled, None, window, cx);
1555    }
1556
1557    fn open_permanent(&mut self, _: &OpenPermanent, window: &mut Window, cx: &mut Context<Self>) {
1558        self.open_internal(false, true, None, window, cx);
1559    }
1560
1561    fn open_split_vertical(
1562        &mut self,
1563        _: &OpenSplitVertical,
1564        window: &mut Window,
1565        cx: &mut Context<Self>,
1566    ) {
1567        self.open_internal(false, true, Some(SplitDirection::vertical(cx)), window, cx);
1568    }
1569
1570    fn open_split_horizontal(
1571        &mut self,
1572        _: &OpenSplitHorizontal,
1573        window: &mut Window,
1574        cx: &mut Context<Self>,
1575    ) {
1576        self.open_internal(
1577            false,
1578            true,
1579            Some(SplitDirection::horizontal(cx)),
1580            window,
1581            cx,
1582        );
1583    }
1584
1585    fn open_internal(
1586        &mut self,
1587        allow_preview: bool,
1588        focus_opened_item: bool,
1589        split_direction: Option<SplitDirection>,
1590        window: &mut Window,
1591        cx: &mut Context<Self>,
1592    ) {
1593        if let Some((_, entry)) = self.selected_entry(cx) {
1594            if entry.is_file() {
1595                if split_direction.is_some() {
1596                    self.split_entry(entry.id, allow_preview, split_direction, cx);
1597                } else {
1598                    self.open_entry(entry.id, focus_opened_item, allow_preview, cx);
1599                }
1600                cx.notify();
1601            } else {
1602                self.toggle_expanded(entry.id, window, cx);
1603            }
1604        }
1605    }
1606
1607    fn populate_validation_error(&mut self, cx: &mut Context<Self>) {
1608        let edit_state = match self.state.edit_state.as_mut() {
1609            Some(state) => state,
1610            None => return,
1611        };
1612        let filename = self.filename_editor.read(cx).text(cx);
1613        if !filename.is_empty() {
1614            if filename.is_empty() {
1615                edit_state.validation_state =
1616                    ValidationState::Error("File or directory name cannot be empty.".to_string());
1617                cx.notify();
1618                return;
1619            }
1620
1621            let trimmed_filename = filename.trim();
1622            if trimmed_filename != filename {
1623                edit_state.validation_state = ValidationState::Warning(
1624                    "File or directory name contains leading or trailing whitespace.".to_string(),
1625                );
1626                cx.notify();
1627                return;
1628            }
1629            let trimmed_filename = trimmed_filename.trim_start_matches('/');
1630
1631            let Ok(filename) = RelPath::unix(trimmed_filename) else {
1632                edit_state.validation_state = ValidationState::Warning(
1633                    "File or directory name contains leading or trailing whitespace.".to_string(),
1634                );
1635                cx.notify();
1636                return;
1637            };
1638
1639            if let Some(worktree) = self
1640                .project
1641                .read(cx)
1642                .worktree_for_id(edit_state.worktree_id, cx)
1643                && let Some(entry) = worktree.read(cx).entry_for_id(edit_state.entry_id)
1644            {
1645                let mut already_exists = false;
1646                if edit_state.is_new_entry() {
1647                    let new_path = entry.path.join(filename);
1648                    if worktree.read(cx).entry_for_path(&new_path).is_some() {
1649                        already_exists = true;
1650                    }
1651                } else {
1652                    let new_path = if let Some(parent) = entry.path.clone().parent() {
1653                        parent.join(&filename)
1654                    } else {
1655                        filename.into()
1656                    };
1657                    if let Some(existing) = worktree.read(cx).entry_for_path(&new_path)
1658                        && existing.id != entry.id
1659                    {
1660                        already_exists = true;
1661                    }
1662                };
1663                if already_exists {
1664                    edit_state.validation_state = ValidationState::Error(format!(
1665                        "File or directory '{}' already exists at location. Please choose a different name.",
1666                        filename.as_unix_str()
1667                    ));
1668                    cx.notify();
1669                    return;
1670                }
1671            }
1672        }
1673        edit_state.validation_state = ValidationState::None;
1674        cx.notify();
1675    }
1676
1677    fn confirm_edit(
1678        &mut self,
1679        refocus: bool,
1680        window: &mut Window,
1681        cx: &mut Context<Self>,
1682    ) -> Option<Task<Result<()>>> {
1683        let edit_state = self.state.edit_state.as_mut()?;
1684        let worktree_id = edit_state.worktree_id;
1685        let is_new_entry = edit_state.is_new_entry();
1686        let mut filename = self.filename_editor.read(cx).text(cx);
1687        let path_style = self.project.read(cx).path_style(cx);
1688        if path_style.is_windows() {
1689            // on windows, trailing dots are ignored in paths
1690            // this can cause project panel to create a new entry with a trailing dot
1691            // while the actual one without the dot gets populated by the file watcher
1692            while let Some(trimmed) = filename.strip_suffix('.') {
1693                filename = trimmed.to_string();
1694            }
1695        }
1696        if filename.trim().is_empty() {
1697            return None;
1698        }
1699
1700        let filename_indicates_dir = if path_style.is_windows() {
1701            filename.ends_with('/') || filename.ends_with('\\')
1702        } else {
1703            filename.ends_with('/')
1704        };
1705        let filename = if path_style.is_windows() {
1706            filename.trim_start_matches(&['/', '\\'])
1707        } else {
1708            filename.trim_start_matches('/')
1709        };
1710        let filename = RelPath::new(filename.as_ref(), path_style).ok()?.into_arc();
1711
1712        edit_state.is_dir =
1713            edit_state.is_dir || (edit_state.is_new_entry() && filename_indicates_dir);
1714        let is_dir = edit_state.is_dir;
1715        let worktree = self.project.read(cx).worktree_for_id(worktree_id, cx)?;
1716        let entry = worktree.read(cx).entry_for_id(edit_state.entry_id)?.clone();
1717
1718        let edit_task;
1719        let edited_entry_id;
1720        if is_new_entry {
1721            self.state.selection = Some(SelectedEntry {
1722                worktree_id,
1723                entry_id: NEW_ENTRY_ID,
1724            });
1725            let new_path = entry.path.join(&filename);
1726            if worktree.read(cx).entry_for_path(&new_path).is_some() {
1727                return None;
1728            }
1729
1730            edited_entry_id = NEW_ENTRY_ID;
1731            edit_task = self.project.update(cx, |project, cx| {
1732                project.create_entry((worktree_id, new_path), is_dir, cx)
1733            });
1734        } else {
1735            let new_path = if let Some(parent) = entry.path.clone().parent() {
1736                parent.join(&filename)
1737            } else {
1738                filename.clone()
1739            };
1740            if let Some(existing) = worktree.read(cx).entry_for_path(&new_path) {
1741                if existing.id == entry.id && refocus {
1742                    window.focus(&self.focus_handle, cx);
1743                }
1744                return None;
1745            }
1746            edited_entry_id = entry.id;
1747            edit_task = self.project.update(cx, |project, cx| {
1748                project.rename_entry(entry.id, (worktree_id, new_path).into(), cx)
1749            });
1750        };
1751
1752        if refocus {
1753            window.focus(&self.focus_handle, cx);
1754        }
1755        edit_state.processing_filename = Some(filename);
1756        cx.notify();
1757
1758        Some(cx.spawn_in(window, async move |project_panel, cx| {
1759            let new_entry = edit_task.await;
1760            project_panel.update(cx, |project_panel, cx| {
1761                project_panel.state.edit_state = None;
1762                cx.notify();
1763            })?;
1764
1765            match new_entry {
1766                Err(e) => {
1767                    project_panel
1768                        .update_in(cx, |project_panel, window, cx| {
1769                            project_panel.marked_entries.clear();
1770                            project_panel.update_visible_entries(None, false, false, window, cx);
1771                        })
1772                        .ok();
1773                    Err(e)?;
1774                }
1775                Ok(CreatedEntry::Included(new_entry)) => {
1776                    project_panel.update_in(cx, |project_panel, window, cx| {
1777                        if let Some(selection) = &mut project_panel.state.selection
1778                            && selection.entry_id == edited_entry_id
1779                        {
1780                            selection.worktree_id = worktree_id;
1781                            selection.entry_id = new_entry.id;
1782                            project_panel.marked_entries.clear();
1783                            project_panel.expand_to_selection(cx);
1784                        }
1785                        project_panel.update_visible_entries(None, false, false, window, cx);
1786                        if is_new_entry && !is_dir {
1787                            let settings = ProjectPanelSettings::get_global(cx);
1788                            if settings.auto_open.should_open_on_create() {
1789                                project_panel.open_entry(new_entry.id, true, false, cx);
1790                            }
1791                        }
1792                        cx.notify();
1793                    })?;
1794                }
1795                Ok(CreatedEntry::Excluded { abs_path }) => {
1796                    if let Some(open_task) = project_panel
1797                        .update_in(cx, |project_panel, window, cx| {
1798                            project_panel.marked_entries.clear();
1799                            project_panel.update_visible_entries(None, false, false, window, cx);
1800
1801                            if is_dir {
1802                                project_panel.project.update(cx, |_, cx| {
1803                                    cx.emit(project::Event::Toast {
1804                                        notification_id: "excluded-directory".into(),
1805                                        message: format!(
1806                                            concat!(
1807                                                "Created an excluded directory at {:?}.\n",
1808                                                "Alter `file_scan_exclusions` in the settings ",
1809                                                "to show it in the panel"
1810                                            ),
1811                                            abs_path
1812                                        ),
1813                                    })
1814                                });
1815                                None
1816                            } else {
1817                                project_panel
1818                                    .workspace
1819                                    .update(cx, |workspace, cx| {
1820                                        workspace.open_abs_path(
1821                                            abs_path,
1822                                            OpenOptions {
1823                                                visible: Some(OpenVisible::All),
1824                                                ..Default::default()
1825                                            },
1826                                            window,
1827                                            cx,
1828                                        )
1829                                    })
1830                                    .ok()
1831                            }
1832                        })
1833                        .ok()
1834                        .flatten()
1835                    {
1836                        let _ = open_task.await?;
1837                    }
1838                }
1839            }
1840            Ok(())
1841        }))
1842    }
1843
1844    fn cancel(&mut self, _: &menu::Cancel, window: &mut Window, cx: &mut Context<Self>) {
1845        if cx.stop_active_drag(window) {
1846            self.drag_target_entry.take();
1847            self.hover_expand_task.take();
1848            return;
1849        }
1850
1851        let previous_edit_state = self.state.edit_state.take();
1852        self.update_visible_entries(None, false, false, window, cx);
1853        self.marked_entries.clear();
1854
1855        if let Some(previously_focused) =
1856            previous_edit_state.and_then(|edit_state| edit_state.previously_focused)
1857        {
1858            self.state.selection = Some(previously_focused);
1859            self.autoscroll(cx);
1860        }
1861
1862        window.focus(&self.focus_handle, cx);
1863        cx.notify();
1864    }
1865
1866    fn open_entry(
1867        &mut self,
1868        entry_id: ProjectEntryId,
1869        focus_opened_item: bool,
1870        allow_preview: bool,
1871
1872        cx: &mut Context<Self>,
1873    ) {
1874        cx.emit(Event::OpenedEntry {
1875            entry_id,
1876            focus_opened_item,
1877            allow_preview,
1878        });
1879    }
1880
1881    fn split_entry(
1882        &mut self,
1883        entry_id: ProjectEntryId,
1884        allow_preview: bool,
1885        split_direction: Option<SplitDirection>,
1886
1887        cx: &mut Context<Self>,
1888    ) {
1889        cx.emit(Event::SplitEntry {
1890            entry_id,
1891            allow_preview,
1892            split_direction,
1893        });
1894    }
1895
1896    fn new_file(&mut self, _: &NewFile, window: &mut Window, cx: &mut Context<Self>) {
1897        self.add_entry(false, window, cx)
1898    }
1899
1900    fn new_directory(&mut self, _: &NewDirectory, window: &mut Window, cx: &mut Context<Self>) {
1901        self.add_entry(true, window, cx)
1902    }
1903
1904    fn add_entry(&mut self, is_dir: bool, window: &mut Window, cx: &mut Context<Self>) {
1905        let Some((worktree_id, entry_id)) = self
1906            .state
1907            .selection
1908            .map(|entry| (entry.worktree_id, entry.entry_id))
1909            .or_else(|| {
1910                let entry_id = self.state.last_worktree_root_id?;
1911                let worktree_id = self
1912                    .project
1913                    .read(cx)
1914                    .worktree_for_entry(entry_id, cx)?
1915                    .read(cx)
1916                    .id();
1917
1918                self.state.selection = Some(SelectedEntry {
1919                    worktree_id,
1920                    entry_id,
1921                });
1922
1923                Some((worktree_id, entry_id))
1924            })
1925        else {
1926            return;
1927        };
1928
1929        let directory_id;
1930        let new_entry_id = self.resolve_entry(entry_id);
1931        if let Some((worktree, expanded_dir_ids)) = self
1932            .project
1933            .read(cx)
1934            .worktree_for_id(worktree_id, cx)
1935            .zip(self.state.expanded_dir_ids.get_mut(&worktree_id))
1936        {
1937            let worktree = worktree.read(cx);
1938            if let Some(mut entry) = worktree.entry_for_id(new_entry_id) {
1939                loop {
1940                    if entry.is_dir() {
1941                        if let Err(ix) = expanded_dir_ids.binary_search(&entry.id) {
1942                            expanded_dir_ids.insert(ix, entry.id);
1943                        }
1944                        directory_id = entry.id;
1945                        break;
1946                    } else {
1947                        if let Some(parent_path) = entry.path.parent()
1948                            && let Some(parent_entry) = worktree.entry_for_path(parent_path)
1949                        {
1950                            entry = parent_entry;
1951                            continue;
1952                        }
1953                        return;
1954                    }
1955                }
1956            } else {
1957                return;
1958            };
1959        } else {
1960            return;
1961        };
1962
1963        self.marked_entries.clear();
1964        self.state.edit_state = Some(EditState {
1965            worktree_id,
1966            entry_id: directory_id,
1967            leaf_entry_id: None,
1968            is_dir,
1969            processing_filename: None,
1970            previously_focused: self.state.selection,
1971            depth: 0,
1972            validation_state: ValidationState::None,
1973        });
1974        self.filename_editor.update(cx, |editor, cx| {
1975            editor.clear(window, cx);
1976        });
1977        self.update_visible_entries(Some((worktree_id, NEW_ENTRY_ID)), true, true, window, cx);
1978        cx.notify();
1979    }
1980
1981    fn unflatten_entry_id(&self, leaf_entry_id: ProjectEntryId) -> ProjectEntryId {
1982        if let Some(ancestors) = self.state.ancestors.get(&leaf_entry_id) {
1983            ancestors
1984                .ancestors
1985                .get(ancestors.current_ancestor_depth)
1986                .copied()
1987                .unwrap_or(leaf_entry_id)
1988        } else {
1989            leaf_entry_id
1990        }
1991    }
1992
1993    fn rename_impl(
1994        &mut self,
1995        selection: Option<Range<usize>>,
1996        window: &mut Window,
1997        cx: &mut Context<Self>,
1998    ) {
1999        if let Some(SelectedEntry {
2000            worktree_id,
2001            entry_id,
2002        }) = self.state.selection
2003            && let Some(worktree) = self.project.read(cx).worktree_for_id(worktree_id, cx)
2004        {
2005            let sub_entry_id = self.unflatten_entry_id(entry_id);
2006            if let Some(entry) = worktree.read(cx).entry_for_id(sub_entry_id) {
2007                #[cfg(target_os = "windows")]
2008                if Some(entry) == worktree.read(cx).root_entry() {
2009                    return;
2010                }
2011
2012                if Some(entry) == worktree.read(cx).root_entry() {
2013                    let settings = ProjectPanelSettings::get_global(cx);
2014                    let visible_worktrees_count =
2015                        self.project.read(cx).visible_worktrees(cx).count();
2016                    if settings.hide_root && visible_worktrees_count == 1 {
2017                        return;
2018                    }
2019                }
2020
2021                self.state.edit_state = Some(EditState {
2022                    worktree_id,
2023                    entry_id: sub_entry_id,
2024                    leaf_entry_id: Some(entry_id),
2025                    is_dir: entry.is_dir(),
2026                    processing_filename: None,
2027                    previously_focused: None,
2028                    depth: 0,
2029                    validation_state: ValidationState::None,
2030                });
2031                let file_name = entry.path.file_name().unwrap_or_default().to_string();
2032                let selection = selection.unwrap_or_else(|| {
2033                    let file_stem = entry.path.file_stem().map(|s| s.to_string());
2034                    let selection_end =
2035                        file_stem.map_or(file_name.len(), |file_stem| file_stem.len());
2036                    0..selection_end
2037                });
2038                self.filename_editor.update(cx, |editor, cx| {
2039                    editor.set_text(file_name, window, cx);
2040                    editor.change_selections(Default::default(), window, cx, |s| {
2041                        s.select_ranges([
2042                            MultiBufferOffset(selection.start)..MultiBufferOffset(selection.end)
2043                        ])
2044                    });
2045                });
2046                self.update_visible_entries(None, true, true, window, cx);
2047                cx.notify();
2048            }
2049        }
2050    }
2051
2052    fn rename(&mut self, _: &Rename, window: &mut Window, cx: &mut Context<Self>) {
2053        self.rename_impl(None, window, cx);
2054    }
2055
2056    fn trash(&mut self, action: &Trash, window: &mut Window, cx: &mut Context<Self>) {
2057        self.remove(true, action.skip_prompt, window, cx);
2058    }
2059
2060    fn delete(&mut self, action: &Delete, window: &mut Window, cx: &mut Context<Self>) {
2061        self.remove(false, action.skip_prompt, window, cx);
2062    }
2063
2064    fn restore_file(
2065        &mut self,
2066        action: &git::RestoreFile,
2067        window: &mut Window,
2068        cx: &mut Context<Self>,
2069    ) {
2070        maybe!({
2071            let selection = self.state.selection?;
2072            let project = self.project.read(cx);
2073
2074            let (_worktree, entry) = self.selected_sub_entry(cx)?;
2075            if entry.is_dir() {
2076                return None;
2077            }
2078
2079            let project_path = project.path_for_entry(selection.entry_id, cx)?;
2080
2081            let git_store = project.git_store();
2082            let (repository, repo_path) = git_store
2083                .read(cx)
2084                .repository_and_path_for_project_path(&project_path, cx)?;
2085
2086            let snapshot = repository.read(cx).snapshot();
2087            let status = snapshot.status_for_path(&repo_path)?;
2088            if !status.status.is_modified() && !status.status.is_deleted() {
2089                return None;
2090            }
2091
2092            let file_name = entry.path.file_name()?.to_string();
2093
2094            let answer = if !action.skip_prompt {
2095                let prompt = format!("Discard changes to {}?", file_name);
2096                Some(window.prompt(PromptLevel::Info, &prompt, None, &["Restore", "Cancel"], cx))
2097            } else {
2098                None
2099            };
2100
2101            cx.spawn_in(window, async move |panel, cx| {
2102                if let Some(answer) = answer
2103                    && answer.await != Ok(0)
2104                {
2105                    return anyhow::Ok(());
2106                }
2107
2108                let task = panel.update(cx, |_panel, cx| {
2109                    repository.update(cx, |repo, cx| {
2110                        repo.checkout_files("HEAD", vec![repo_path], cx)
2111                    })
2112                })?;
2113
2114                if let Err(e) = task.await {
2115                    panel
2116                        .update(cx, |panel, cx| {
2117                            let message = format!("Failed to restore {}: {}", file_name, e);
2118                            let toast = StatusToast::new(message, cx, |this, _| {
2119                                this.icon(ToastIcon::new(IconName::XCircle).color(Color::Error))
2120                                    .dismiss_button(true)
2121                            });
2122                            panel
2123                                .workspace
2124                                .update(cx, |workspace, cx| {
2125                                    workspace.toggle_status_toast(toast, cx);
2126                                })
2127                                .ok();
2128                        })
2129                        .ok();
2130                }
2131
2132                panel
2133                    .update(cx, |panel, cx| {
2134                        panel.project.update(cx, |project, cx| {
2135                            if let Some(buffer_id) = project
2136                                .buffer_store()
2137                                .read(cx)
2138                                .buffer_id_for_project_path(&project_path)
2139                            {
2140                                if let Some(buffer) = project.buffer_for_id(*buffer_id, cx) {
2141                                    buffer.update(cx, |buffer, cx| {
2142                                        let _ = buffer.reload(cx);
2143                                    });
2144                                }
2145                            }
2146                        })
2147                    })
2148                    .ok();
2149
2150                anyhow::Ok(())
2151            })
2152            .detach_and_log_err(cx);
2153
2154            Some(())
2155        });
2156    }
2157
2158    fn remove(
2159        &mut self,
2160        trash: bool,
2161        skip_prompt: bool,
2162        window: &mut Window,
2163        cx: &mut Context<ProjectPanel>,
2164    ) {
2165        maybe!({
2166            let items_to_delete = self.disjoint_entries(cx);
2167            if items_to_delete.is_empty() {
2168                return None;
2169            }
2170            let project = self.project.read(cx);
2171
2172            let mut dirty_buffers = 0;
2173            let file_paths = items_to_delete
2174                .iter()
2175                .filter_map(|selection| {
2176                    let project_path = project.path_for_entry(selection.entry_id, cx)?;
2177                    dirty_buffers +=
2178                        project.dirty_buffers(cx).any(|path| path == project_path) as usize;
2179                    Some((
2180                        selection.entry_id,
2181                        project_path.path.file_name()?.to_string(),
2182                    ))
2183                })
2184                .collect::<Vec<_>>();
2185            if file_paths.is_empty() {
2186                return None;
2187            }
2188            let answer = if !skip_prompt {
2189                let operation = if trash { "Trash" } else { "Delete" };
2190                let prompt = match file_paths.first() {
2191                    Some((_, path)) if file_paths.len() == 1 => {
2192                        let unsaved_warning = if dirty_buffers > 0 {
2193                            "\n\nIt has unsaved changes, which will be lost."
2194                        } else {
2195                            ""
2196                        };
2197
2198                        format!("{operation} {path}?{unsaved_warning}")
2199                    }
2200                    _ => {
2201                        const CUTOFF_POINT: usize = 10;
2202                        let names = if file_paths.len() > CUTOFF_POINT {
2203                            let truncated_path_counts = file_paths.len() - CUTOFF_POINT;
2204                            let mut paths = file_paths
2205                                .iter()
2206                                .map(|(_, path)| path.clone())
2207                                .take(CUTOFF_POINT)
2208                                .collect::<Vec<_>>();
2209                            paths.truncate(CUTOFF_POINT);
2210                            if truncated_path_counts == 1 {
2211                                paths.push(".. 1 file not shown".into());
2212                            } else {
2213                                paths.push(format!(".. {} files not shown", truncated_path_counts));
2214                            }
2215                            paths
2216                        } else {
2217                            file_paths.iter().map(|(_, path)| path.clone()).collect()
2218                        };
2219                        let unsaved_warning = if dirty_buffers == 0 {
2220                            String::new()
2221                        } else if dirty_buffers == 1 {
2222                            "\n\n1 of these has unsaved changes, which will be lost.".to_string()
2223                        } else {
2224                            format!(
2225                                "\n\n{dirty_buffers} of these have unsaved changes, which will be lost."
2226                            )
2227                        };
2228
2229                        format!(
2230                            "Do you want to {} the following {} files?\n{}{unsaved_warning}",
2231                            operation.to_lowercase(),
2232                            file_paths.len(),
2233                            names.join("\n")
2234                        )
2235                    }
2236                };
2237                Some(window.prompt(PromptLevel::Info, &prompt, None, &[operation, "Cancel"], cx))
2238            } else {
2239                None
2240            };
2241            let next_selection = self.find_next_selection_after_deletion(items_to_delete, cx);
2242            cx.spawn_in(window, async move |panel, cx| {
2243                if let Some(answer) = answer
2244                    && answer.await != Ok(0)
2245                {
2246                    return anyhow::Ok(());
2247                }
2248                for (entry_id, _) in file_paths {
2249                    panel
2250                        .update(cx, |panel, cx| {
2251                            panel
2252                                .project
2253                                .update(cx, |project, cx| project.delete_entry(entry_id, trash, cx))
2254                                .context("no such entry")
2255                        })??
2256                        .await?;
2257                }
2258                panel.update_in(cx, |panel, window, cx| {
2259                    if let Some(next_selection) = next_selection {
2260                        panel.update_visible_entries(
2261                            Some((next_selection.worktree_id, next_selection.entry_id)),
2262                            false,
2263                            true,
2264                            window,
2265                            cx,
2266                        );
2267                    } else {
2268                        panel.select_last(&SelectLast {}, window, cx);
2269                    }
2270                })?;
2271                Ok(())
2272            })
2273            .detach_and_log_err(cx);
2274            Some(())
2275        });
2276    }
2277
2278    fn find_next_selection_after_deletion(
2279        &self,
2280        sanitized_entries: BTreeSet<SelectedEntry>,
2281        cx: &mut Context<Self>,
2282    ) -> Option<SelectedEntry> {
2283        if sanitized_entries.is_empty() {
2284            return None;
2285        }
2286        let project = self.project.read(cx);
2287        let (worktree_id, worktree) = sanitized_entries
2288            .iter()
2289            .map(|entry| entry.worktree_id)
2290            .filter_map(|id| project.worktree_for_id(id, cx).map(|w| (id, w.read(cx))))
2291            .max_by(|(_, a), (_, b)| a.root_name().cmp(b.root_name()))?;
2292        let git_store = project.git_store().read(cx);
2293
2294        let marked_entries_in_worktree = sanitized_entries
2295            .iter()
2296            .filter(|e| e.worktree_id == worktree_id)
2297            .collect::<HashSet<_>>();
2298        let latest_entry = marked_entries_in_worktree
2299            .iter()
2300            .max_by(|a, b| {
2301                match (
2302                    worktree.entry_for_id(a.entry_id),
2303                    worktree.entry_for_id(b.entry_id),
2304                ) {
2305                    (Some(a), Some(b)) => compare_paths(
2306                        (a.path.as_std_path(), a.is_file()),
2307                        (b.path.as_std_path(), b.is_file()),
2308                    ),
2309                    _ => cmp::Ordering::Equal,
2310                }
2311            })
2312            .and_then(|e| worktree.entry_for_id(e.entry_id))?;
2313
2314        let parent_path = latest_entry.path.parent()?;
2315        let parent_entry = worktree.entry_for_path(parent_path)?;
2316
2317        // Remove all siblings that are being deleted except the last marked entry
2318        let repo_snapshots = git_store.repo_snapshots(cx);
2319        let worktree_snapshot = worktree.snapshot();
2320        let hide_gitignore = ProjectPanelSettings::get_global(cx).hide_gitignore;
2321        let mut siblings: Vec<_> =
2322            ChildEntriesGitIter::new(&repo_snapshots, &worktree_snapshot, parent_path)
2323                .filter(|sibling| {
2324                    (sibling.id == latest_entry.id)
2325                        || (!marked_entries_in_worktree.contains(&&SelectedEntry {
2326                            worktree_id,
2327                            entry_id: sibling.id,
2328                        }) && (!hide_gitignore || !sibling.is_ignored))
2329                })
2330                .map(|entry| entry.to_owned())
2331                .collect();
2332
2333        let mode = ProjectPanelSettings::get_global(cx).sort_mode;
2334        sort_worktree_entries_with_mode(&mut siblings, mode);
2335        let sibling_entry_index = siblings
2336            .iter()
2337            .position(|sibling| sibling.id == latest_entry.id)?;
2338
2339        if let Some(next_sibling) = sibling_entry_index
2340            .checked_add(1)
2341            .and_then(|i| siblings.get(i))
2342        {
2343            return Some(SelectedEntry {
2344                worktree_id,
2345                entry_id: next_sibling.id,
2346            });
2347        }
2348        if let Some(prev_sibling) = sibling_entry_index
2349            .checked_sub(1)
2350            .and_then(|i| siblings.get(i))
2351        {
2352            return Some(SelectedEntry {
2353                worktree_id,
2354                entry_id: prev_sibling.id,
2355            });
2356        }
2357        // No neighbour sibling found, fall back to parent
2358        Some(SelectedEntry {
2359            worktree_id,
2360            entry_id: parent_entry.id,
2361        })
2362    }
2363
2364    fn unfold_directory(
2365        &mut self,
2366        _: &UnfoldDirectory,
2367        window: &mut Window,
2368        cx: &mut Context<Self>,
2369    ) {
2370        if let Some((worktree, entry)) = self.selected_entry(cx) {
2371            self.state.unfolded_dir_ids.insert(entry.id);
2372
2373            let snapshot = worktree.snapshot();
2374            let mut parent_path = entry.path.parent();
2375            while let Some(path) = parent_path {
2376                if let Some(parent_entry) = worktree.entry_for_path(path) {
2377                    let mut children_iter = snapshot.child_entries(path);
2378
2379                    if children_iter.by_ref().take(2).count() > 1 {
2380                        break;
2381                    }
2382
2383                    self.state.unfolded_dir_ids.insert(parent_entry.id);
2384                    parent_path = path.parent();
2385                } else {
2386                    break;
2387                }
2388            }
2389
2390            self.update_visible_entries(None, false, true, window, cx);
2391            cx.notify();
2392        }
2393    }
2394
2395    fn fold_directory(&mut self, _: &FoldDirectory, window: &mut Window, cx: &mut Context<Self>) {
2396        if let Some((worktree, entry)) = self.selected_entry(cx) {
2397            self.state.unfolded_dir_ids.remove(&entry.id);
2398
2399            let snapshot = worktree.snapshot();
2400            let mut path = &*entry.path;
2401            loop {
2402                let mut child_entries_iter = snapshot.child_entries(path);
2403                if let Some(child) = child_entries_iter.next() {
2404                    if child_entries_iter.next().is_none() && child.is_dir() {
2405                        self.state.unfolded_dir_ids.remove(&child.id);
2406                        path = &*child.path;
2407                    } else {
2408                        break;
2409                    }
2410                } else {
2411                    break;
2412                }
2413            }
2414
2415            self.update_visible_entries(None, false, true, window, cx);
2416            cx.notify();
2417        }
2418    }
2419
2420    fn scroll_up(&mut self, _: &ScrollUp, window: &mut Window, cx: &mut Context<Self>) {
2421        for _ in 0..self.rendered_entries_len / 2 {
2422            window.dispatch_action(SelectPrevious.boxed_clone(), cx);
2423        }
2424    }
2425
2426    fn scroll_down(&mut self, _: &ScrollDown, window: &mut Window, cx: &mut Context<Self>) {
2427        for _ in 0..self.rendered_entries_len / 2 {
2428            window.dispatch_action(SelectNext.boxed_clone(), cx);
2429        }
2430    }
2431
2432    fn scroll_cursor_center(
2433        &mut self,
2434        _: &ScrollCursorCenter,
2435        _: &mut Window,
2436        cx: &mut Context<Self>,
2437    ) {
2438        if let Some((_, _, index)) = self
2439            .state
2440            .selection
2441            .and_then(|s| self.index_for_selection(s))
2442        {
2443            self.scroll_handle
2444                .scroll_to_item_strict(index, ScrollStrategy::Center);
2445            cx.notify();
2446        }
2447    }
2448
2449    fn scroll_cursor_top(&mut self, _: &ScrollCursorTop, _: &mut Window, cx: &mut Context<Self>) {
2450        if let Some((_, _, index)) = self
2451            .state
2452            .selection
2453            .and_then(|s| self.index_for_selection(s))
2454        {
2455            self.scroll_handle
2456                .scroll_to_item_strict(index, ScrollStrategy::Top);
2457            cx.notify();
2458        }
2459    }
2460
2461    fn scroll_cursor_bottom(
2462        &mut self,
2463        _: &ScrollCursorBottom,
2464        _: &mut Window,
2465        cx: &mut Context<Self>,
2466    ) {
2467        if let Some((_, _, index)) = self
2468            .state
2469            .selection
2470            .and_then(|s| self.index_for_selection(s))
2471        {
2472            self.scroll_handle
2473                .scroll_to_item_strict(index, ScrollStrategy::Bottom);
2474            cx.notify();
2475        }
2476    }
2477
2478    fn select_next(&mut self, _: &SelectNext, window: &mut Window, cx: &mut Context<Self>) {
2479        if let Some(edit_state) = &self.state.edit_state
2480            && edit_state.processing_filename.is_none()
2481        {
2482            self.filename_editor.update(cx, |editor, cx| {
2483                editor.move_to_end_of_line(
2484                    &editor::actions::MoveToEndOfLine {
2485                        stop_at_soft_wraps: false,
2486                    },
2487                    window,
2488                    cx,
2489                );
2490            });
2491            return;
2492        }
2493        if let Some(selection) = self.state.selection {
2494            let (mut worktree_ix, mut entry_ix, _) =
2495                self.index_for_selection(selection).unwrap_or_default();
2496            if let Some(worktree_entries) = self
2497                .state
2498                .visible_entries
2499                .get(worktree_ix)
2500                .map(|v| &v.entries)
2501            {
2502                if entry_ix + 1 < worktree_entries.len() {
2503                    entry_ix += 1;
2504                } else {
2505                    worktree_ix += 1;
2506                    entry_ix = 0;
2507                }
2508            }
2509
2510            if let Some(VisibleEntriesForWorktree {
2511                worktree_id,
2512                entries,
2513                ..
2514            }) = self.state.visible_entries.get(worktree_ix)
2515                && let Some(entry) = entries.get(entry_ix)
2516            {
2517                let selection = SelectedEntry {
2518                    worktree_id: *worktree_id,
2519                    entry_id: entry.id,
2520                };
2521                self.state.selection = Some(selection);
2522                if window.modifiers().shift {
2523                    self.marked_entries.push(selection);
2524                }
2525
2526                self.autoscroll(cx);
2527                cx.notify();
2528            }
2529        } else {
2530            self.select_first(&SelectFirst {}, window, cx);
2531        }
2532    }
2533
2534    fn select_prev_diagnostic(
2535        &mut self,
2536        action: &SelectPrevDiagnostic,
2537        window: &mut Window,
2538        cx: &mut Context<Self>,
2539    ) {
2540        let selection = self.find_entry(
2541            self.state.selection.as_ref(),
2542            true,
2543            |entry, worktree_id| {
2544                self.state.selection.is_none_or(|selection| {
2545                    if selection.worktree_id == worktree_id {
2546                        selection.entry_id != entry.id
2547                    } else {
2548                        true
2549                    }
2550                }) && entry.is_file()
2551                    && self
2552                        .diagnostics
2553                        .get(&(worktree_id, entry.path.clone()))
2554                        .is_some_and(|severity| action.severity.matches(*severity))
2555            },
2556            cx,
2557        );
2558
2559        if let Some(selection) = selection {
2560            self.state.selection = Some(selection);
2561            self.expand_entry(selection.worktree_id, selection.entry_id, cx);
2562            self.update_visible_entries(
2563                Some((selection.worktree_id, selection.entry_id)),
2564                false,
2565                true,
2566                window,
2567                cx,
2568            );
2569            cx.notify();
2570        }
2571    }
2572
2573    fn select_next_diagnostic(
2574        &mut self,
2575        action: &SelectNextDiagnostic,
2576        window: &mut Window,
2577        cx: &mut Context<Self>,
2578    ) {
2579        let selection = self.find_entry(
2580            self.state.selection.as_ref(),
2581            false,
2582            |entry, worktree_id| {
2583                self.state.selection.is_none_or(|selection| {
2584                    if selection.worktree_id == worktree_id {
2585                        selection.entry_id != entry.id
2586                    } else {
2587                        true
2588                    }
2589                }) && entry.is_file()
2590                    && self
2591                        .diagnostics
2592                        .get(&(worktree_id, entry.path.clone()))
2593                        .is_some_and(|severity| action.severity.matches(*severity))
2594            },
2595            cx,
2596        );
2597
2598        if let Some(selection) = selection {
2599            self.state.selection = Some(selection);
2600            self.expand_entry(selection.worktree_id, selection.entry_id, cx);
2601            self.update_visible_entries(
2602                Some((selection.worktree_id, selection.entry_id)),
2603                false,
2604                true,
2605                window,
2606                cx,
2607            );
2608            cx.notify();
2609        }
2610    }
2611
2612    fn select_prev_git_entry(
2613        &mut self,
2614        _: &SelectPrevGitEntry,
2615        window: &mut Window,
2616        cx: &mut Context<Self>,
2617    ) {
2618        let selection = self.find_entry(
2619            self.state.selection.as_ref(),
2620            true,
2621            |entry, worktree_id| {
2622                (self.state.selection.is_none()
2623                    || self.state.selection.is_some_and(|selection| {
2624                        if selection.worktree_id == worktree_id {
2625                            selection.entry_id != entry.id
2626                        } else {
2627                            true
2628                        }
2629                    }))
2630                    && entry.is_file()
2631                    && entry.git_summary.index.modified + entry.git_summary.worktree.modified > 0
2632            },
2633            cx,
2634        );
2635
2636        if let Some(selection) = selection {
2637            self.state.selection = Some(selection);
2638            self.expand_entry(selection.worktree_id, selection.entry_id, cx);
2639            self.update_visible_entries(
2640                Some((selection.worktree_id, selection.entry_id)),
2641                false,
2642                true,
2643                window,
2644                cx,
2645            );
2646            cx.notify();
2647        }
2648    }
2649
2650    fn select_prev_directory(
2651        &mut self,
2652        _: &SelectPrevDirectory,
2653        _: &mut Window,
2654        cx: &mut Context<Self>,
2655    ) {
2656        let selection = self.find_visible_entry(
2657            self.state.selection.as_ref(),
2658            true,
2659            |entry, worktree_id| {
2660                self.state.selection.is_none_or(|selection| {
2661                    if selection.worktree_id == worktree_id {
2662                        selection.entry_id != entry.id
2663                    } else {
2664                        true
2665                    }
2666                }) && entry.is_dir()
2667            },
2668            cx,
2669        );
2670
2671        if let Some(selection) = selection {
2672            self.state.selection = Some(selection);
2673            self.autoscroll(cx);
2674            cx.notify();
2675        }
2676    }
2677
2678    fn select_next_directory(
2679        &mut self,
2680        _: &SelectNextDirectory,
2681        _: &mut Window,
2682        cx: &mut Context<Self>,
2683    ) {
2684        let selection = self.find_visible_entry(
2685            self.state.selection.as_ref(),
2686            false,
2687            |entry, worktree_id| {
2688                self.state.selection.is_none_or(|selection| {
2689                    if selection.worktree_id == worktree_id {
2690                        selection.entry_id != entry.id
2691                    } else {
2692                        true
2693                    }
2694                }) && entry.is_dir()
2695            },
2696            cx,
2697        );
2698
2699        if let Some(selection) = selection {
2700            self.state.selection = Some(selection);
2701            self.autoscroll(cx);
2702            cx.notify();
2703        }
2704    }
2705
2706    fn select_next_git_entry(
2707        &mut self,
2708        _: &SelectNextGitEntry,
2709        window: &mut Window,
2710        cx: &mut Context<Self>,
2711    ) {
2712        let selection = self.find_entry(
2713            self.state.selection.as_ref(),
2714            false,
2715            |entry, worktree_id| {
2716                self.state.selection.is_none_or(|selection| {
2717                    if selection.worktree_id == worktree_id {
2718                        selection.entry_id != entry.id
2719                    } else {
2720                        true
2721                    }
2722                }) && entry.is_file()
2723                    && entry.git_summary.index.modified + entry.git_summary.worktree.modified > 0
2724            },
2725            cx,
2726        );
2727
2728        if let Some(selection) = selection {
2729            self.state.selection = Some(selection);
2730            self.expand_entry(selection.worktree_id, selection.entry_id, cx);
2731            self.update_visible_entries(
2732                Some((selection.worktree_id, selection.entry_id)),
2733                false,
2734                true,
2735                window,
2736                cx,
2737            );
2738            cx.notify();
2739        }
2740    }
2741
2742    fn select_parent(&mut self, _: &SelectParent, window: &mut Window, cx: &mut Context<Self>) {
2743        if let Some((worktree, entry)) = self.selected_sub_entry(cx) {
2744            if let Some(parent) = entry.path.parent() {
2745                let worktree = worktree.read(cx);
2746                if let Some(parent_entry) = worktree.entry_for_path(parent) {
2747                    self.state.selection = Some(SelectedEntry {
2748                        worktree_id: worktree.id(),
2749                        entry_id: parent_entry.id,
2750                    });
2751                    self.autoscroll(cx);
2752                    cx.notify();
2753                }
2754            }
2755        } else {
2756            self.select_first(&SelectFirst {}, window, cx);
2757        }
2758    }
2759
2760    fn select_first(&mut self, _: &SelectFirst, window: &mut Window, cx: &mut Context<Self>) {
2761        if let Some(VisibleEntriesForWorktree {
2762            worktree_id,
2763            entries,
2764            ..
2765        }) = self.state.visible_entries.first()
2766            && let Some(entry) = entries.first()
2767        {
2768            let selection = SelectedEntry {
2769                worktree_id: *worktree_id,
2770                entry_id: entry.id,
2771            };
2772            self.state.selection = Some(selection);
2773            if window.modifiers().shift {
2774                self.marked_entries.push(selection);
2775            }
2776            self.autoscroll(cx);
2777            cx.notify();
2778        }
2779    }
2780
2781    fn select_last(&mut self, _: &SelectLast, _: &mut Window, cx: &mut Context<Self>) {
2782        if let Some(VisibleEntriesForWorktree {
2783            worktree_id,
2784            entries,
2785            ..
2786        }) = self.state.visible_entries.last()
2787        {
2788            let worktree = self.project.read(cx).worktree_for_id(*worktree_id, cx);
2789            if let (Some(worktree), Some(entry)) = (worktree, entries.last()) {
2790                let worktree = worktree.read(cx);
2791                if let Some(entry) = worktree.entry_for_id(entry.id) {
2792                    let selection = SelectedEntry {
2793                        worktree_id: *worktree_id,
2794                        entry_id: entry.id,
2795                    };
2796                    self.state.selection = Some(selection);
2797                    self.autoscroll(cx);
2798                    cx.notify();
2799                }
2800            }
2801        }
2802    }
2803
2804    fn autoscroll(&mut self, cx: &mut Context<Self>) {
2805        if let Some((_, _, index)) = self
2806            .state
2807            .selection
2808            .and_then(|s| self.index_for_selection(s))
2809        {
2810            self.scroll_handle.scroll_to_item_with_offset(
2811                index,
2812                ScrollStrategy::Center,
2813                self.sticky_items_count,
2814            );
2815            cx.notify();
2816        }
2817    }
2818
2819    fn cut(&mut self, _: &Cut, _: &mut Window, cx: &mut Context<Self>) {
2820        let entries = self.disjoint_entries(cx);
2821        if !entries.is_empty() {
2822            self.clipboard = Some(ClipboardEntry::Cut(entries));
2823            cx.notify();
2824        }
2825    }
2826
2827    fn copy(&mut self, _: &Copy, _: &mut Window, cx: &mut Context<Self>) {
2828        let entries = self.disjoint_entries(cx);
2829        if !entries.is_empty() {
2830            self.clipboard = Some(ClipboardEntry::Copied(entries));
2831            cx.notify();
2832        }
2833    }
2834
2835    fn create_paste_path(
2836        &self,
2837        source: &SelectedEntry,
2838        (worktree, target_entry): (Entity<Worktree>, &Entry),
2839        cx: &App,
2840    ) -> Option<(Arc<RelPath>, Option<Range<usize>>)> {
2841        let mut new_path = target_entry.path.to_rel_path_buf();
2842        // If we're pasting into a file, or a directory into itself, go up one level.
2843        if target_entry.is_file() || (target_entry.is_dir() && target_entry.id == source.entry_id) {
2844            new_path.pop();
2845        }
2846        let clipboard_entry_file_name = self
2847            .project
2848            .read(cx)
2849            .path_for_entry(source.entry_id, cx)?
2850            .path
2851            .file_name()?
2852            .to_string();
2853        new_path.push(RelPath::unix(&clipboard_entry_file_name).unwrap());
2854        let extension = new_path.extension().map(|s| s.to_string());
2855        let file_name_without_extension = new_path.file_stem()?.to_string();
2856        let file_name_len = file_name_without_extension.len();
2857        let mut disambiguation_range = None;
2858        let mut ix = 0;
2859        {
2860            let worktree = worktree.read(cx);
2861            while worktree.entry_for_path(&new_path).is_some() {
2862                new_path.pop();
2863
2864                let mut new_file_name = file_name_without_extension.to_string();
2865
2866                let disambiguation = " copy";
2867                let mut disambiguation_len = disambiguation.len();
2868
2869                new_file_name.push_str(disambiguation);
2870
2871                if ix > 0 {
2872                    let extra_disambiguation = format!(" {}", ix);
2873                    disambiguation_len += extra_disambiguation.len();
2874                    new_file_name.push_str(&extra_disambiguation);
2875                }
2876                if let Some(extension) = extension.as_ref() {
2877                    new_file_name.push_str(".");
2878                    new_file_name.push_str(extension);
2879                }
2880
2881                new_path.push(RelPath::unix(&new_file_name).unwrap());
2882
2883                disambiguation_range = Some(file_name_len..(file_name_len + disambiguation_len));
2884                ix += 1;
2885            }
2886        }
2887        Some((new_path.as_rel_path().into(), disambiguation_range))
2888    }
2889
2890    fn paste(&mut self, _: &Paste, window: &mut Window, cx: &mut Context<Self>) {
2891        maybe!({
2892            let (worktree, entry) = self.selected_entry_handle(cx)?;
2893            let entry = entry.clone();
2894            let worktree_id = worktree.read(cx).id();
2895            let clipboard_entries = self
2896                .clipboard
2897                .as_ref()
2898                .filter(|clipboard| !clipboard.items().is_empty())?;
2899
2900            enum PasteTask {
2901                Rename(Task<Result<CreatedEntry>>),
2902                Copy(Task<Result<Option<Entry>>>),
2903            }
2904
2905            let mut paste_tasks = Vec::new();
2906            let mut disambiguation_range = None;
2907            let clip_is_cut = clipboard_entries.is_cut();
2908            for clipboard_entry in clipboard_entries.items() {
2909                let (new_path, new_disambiguation_range) =
2910                    self.create_paste_path(clipboard_entry, self.selected_sub_entry(cx)?, cx)?;
2911                let clip_entry_id = clipboard_entry.entry_id;
2912                let task = if clipboard_entries.is_cut() {
2913                    let task = self.project.update(cx, |project, cx| {
2914                        project.rename_entry(clip_entry_id, (worktree_id, new_path).into(), cx)
2915                    });
2916                    PasteTask::Rename(task)
2917                } else {
2918                    let task = self.project.update(cx, |project, cx| {
2919                        project.copy_entry(clip_entry_id, (worktree_id, new_path).into(), cx)
2920                    });
2921                    PasteTask::Copy(task)
2922                };
2923                paste_tasks.push(task);
2924                disambiguation_range = new_disambiguation_range.or(disambiguation_range);
2925            }
2926
2927            let item_count = paste_tasks.len();
2928
2929            cx.spawn_in(window, async move |project_panel, cx| {
2930                let mut last_succeed = None;
2931                for task in paste_tasks {
2932                    match task {
2933                        PasteTask::Rename(task) => {
2934                            if let Some(CreatedEntry::Included(entry)) =
2935                                task.await.notify_async_err(cx)
2936                            {
2937                                last_succeed = Some(entry);
2938                            }
2939                        }
2940                        PasteTask::Copy(task) => {
2941                            if let Some(Some(entry)) = task.await.notify_async_err(cx) {
2942                                last_succeed = Some(entry);
2943                            }
2944                        }
2945                    }
2946                }
2947                // update selection
2948                if let Some(entry) = last_succeed {
2949                    project_panel
2950                        .update_in(cx, |project_panel, window, cx| {
2951                            project_panel.state.selection = Some(SelectedEntry {
2952                                worktree_id,
2953                                entry_id: entry.id,
2954                            });
2955
2956                            if item_count == 1 {
2957                                // open entry if not dir, setting is enabled, and only focus if rename is not pending
2958                                if !entry.is_dir() {
2959                                    let settings = ProjectPanelSettings::get_global(cx);
2960                                    if settings.auto_open.should_open_on_paste() {
2961                                        project_panel.open_entry(
2962                                            entry.id,
2963                                            disambiguation_range.is_none(),
2964                                            false,
2965                                            cx,
2966                                        );
2967                                    }
2968                                }
2969
2970                                // if only one entry was pasted and it was disambiguated, open the rename editor
2971                                if disambiguation_range.is_some() {
2972                                    cx.defer_in(window, |this, window, cx| {
2973                                        this.rename_impl(disambiguation_range, window, cx);
2974                                    });
2975                                }
2976                            }
2977                        })
2978                        .ok();
2979                }
2980
2981                anyhow::Ok(())
2982            })
2983            .detach_and_log_err(cx);
2984
2985            if clip_is_cut {
2986                // Convert the clipboard cut entry to a copy entry after the first paste.
2987                self.clipboard = self.clipboard.take().map(ClipboardEntry::into_copy_entry);
2988            }
2989
2990            self.expand_entry(worktree_id, entry.id, cx);
2991            Some(())
2992        });
2993    }
2994
2995    fn duplicate(&mut self, _: &Duplicate, window: &mut Window, cx: &mut Context<Self>) {
2996        self.copy(&Copy {}, window, cx);
2997        self.paste(&Paste {}, window, cx);
2998    }
2999
3000    fn copy_path(
3001        &mut self,
3002        _: &zed_actions::workspace::CopyPath,
3003        _: &mut Window,
3004        cx: &mut Context<Self>,
3005    ) {
3006        let abs_file_paths = {
3007            let project = self.project.read(cx);
3008            self.effective_entries()
3009                .into_iter()
3010                .filter_map(|entry| {
3011                    let entry_path = project.path_for_entry(entry.entry_id, cx)?.path;
3012                    Some(
3013                        project
3014                            .worktree_for_id(entry.worktree_id, cx)?
3015                            .read(cx)
3016                            .absolutize(&entry_path)
3017                            .to_string_lossy()
3018                            .to_string(),
3019                    )
3020                })
3021                .collect::<Vec<_>>()
3022        };
3023        if !abs_file_paths.is_empty() {
3024            cx.write_to_clipboard(ClipboardItem::new_string(abs_file_paths.join("\n")));
3025        }
3026    }
3027
3028    fn copy_relative_path(
3029        &mut self,
3030        _: &zed_actions::workspace::CopyRelativePath,
3031        _: &mut Window,
3032        cx: &mut Context<Self>,
3033    ) {
3034        let path_style = self.project.read(cx).path_style(cx);
3035        let file_paths = {
3036            let project = self.project.read(cx);
3037            self.effective_entries()
3038                .into_iter()
3039                .filter_map(|entry| {
3040                    Some(
3041                        project
3042                            .path_for_entry(entry.entry_id, cx)?
3043                            .path
3044                            .display(path_style)
3045                            .into_owned(),
3046                    )
3047                })
3048                .collect::<Vec<_>>()
3049        };
3050        if !file_paths.is_empty() {
3051            cx.write_to_clipboard(ClipboardItem::new_string(file_paths.join("\n")));
3052        }
3053    }
3054
3055    fn reveal_in_finder(
3056        &mut self,
3057        _: &RevealInFileManager,
3058        _: &mut Window,
3059        cx: &mut Context<Self>,
3060    ) {
3061        if let Some((worktree, entry)) = self.selected_sub_entry(cx) {
3062            cx.reveal_path(&worktree.read(cx).absolutize(&entry.path));
3063        }
3064    }
3065
3066    fn remove_from_project(
3067        &mut self,
3068        _: &RemoveFromProject,
3069        _window: &mut Window,
3070        cx: &mut Context<Self>,
3071    ) {
3072        for entry in self.effective_entries().iter() {
3073            let worktree_id = entry.worktree_id;
3074            self.project
3075                .update(cx, |project, cx| project.remove_worktree(worktree_id, cx));
3076        }
3077    }
3078
3079    fn file_abs_paths_to_diff(&self, cx: &Context<Self>) -> Option<(PathBuf, PathBuf)> {
3080        let mut selections_abs_path = self
3081            .marked_entries
3082            .iter()
3083            .filter_map(|entry| {
3084                let project = self.project.read(cx);
3085                let worktree = project.worktree_for_id(entry.worktree_id, cx)?;
3086                let entry = worktree.read(cx).entry_for_id(entry.entry_id)?;
3087                if !entry.is_file() {
3088                    return None;
3089                }
3090                Some(worktree.read(cx).absolutize(&entry.path))
3091            })
3092            .rev();
3093
3094        let last_path = selections_abs_path.next()?;
3095        let previous_to_last = selections_abs_path.next()?;
3096        Some((previous_to_last, last_path))
3097    }
3098
3099    fn compare_marked_files(
3100        &mut self,
3101        _: &CompareMarkedFiles,
3102        window: &mut Window,
3103        cx: &mut Context<Self>,
3104    ) {
3105        let selected_files = self.file_abs_paths_to_diff(cx);
3106        if let Some((file_path1, file_path2)) = selected_files {
3107            self.workspace
3108                .update(cx, |workspace, cx| {
3109                    FileDiffView::open(file_path1, file_path2, workspace, window, cx)
3110                        .detach_and_log_err(cx);
3111                })
3112                .ok();
3113        }
3114    }
3115
3116    fn open_system(&mut self, _: &OpenWithSystem, _: &mut Window, cx: &mut Context<Self>) {
3117        if let Some((worktree, entry)) = self.selected_entry(cx) {
3118            let abs_path = worktree.absolutize(&entry.path);
3119            cx.open_with_system(&abs_path);
3120        }
3121    }
3122
3123    fn open_in_terminal(
3124        &mut self,
3125        _: &OpenInTerminal,
3126        window: &mut Window,
3127        cx: &mut Context<Self>,
3128    ) {
3129        if let Some((worktree, entry)) = self.selected_sub_entry(cx) {
3130            let abs_path = match &entry.canonical_path {
3131                Some(canonical_path) => canonical_path.to_path_buf(),
3132                None => worktree.read(cx).absolutize(&entry.path),
3133            };
3134
3135            let working_directory = if entry.is_dir() {
3136                Some(abs_path)
3137            } else {
3138                abs_path.parent().map(|path| path.to_path_buf())
3139            };
3140            if let Some(working_directory) = working_directory {
3141                window.dispatch_action(
3142                    workspace::OpenTerminal { working_directory }.boxed_clone(),
3143                    cx,
3144                )
3145            }
3146        }
3147    }
3148
3149    pub fn new_search_in_directory(
3150        &mut self,
3151        _: &NewSearchInDirectory,
3152        window: &mut Window,
3153        cx: &mut Context<Self>,
3154    ) {
3155        if let Some((worktree, entry)) = self.selected_sub_entry(cx) {
3156            let dir_path = if entry.is_dir() {
3157                entry.path.clone()
3158            } else {
3159                // entry is a file, use its parent directory
3160                match entry.path.parent() {
3161                    Some(parent) => Arc::from(parent),
3162                    None => {
3163                        // File at root, open search with empty filter
3164                        self.workspace
3165                            .update(cx, |workspace, cx| {
3166                                search::ProjectSearchView::new_search_in_directory(
3167                                    workspace,
3168                                    RelPath::empty(),
3169                                    window,
3170                                    cx,
3171                                );
3172                            })
3173                            .ok();
3174                        return;
3175                    }
3176                }
3177            };
3178
3179            let include_root = self.project.read(cx).visible_worktrees(cx).count() > 1;
3180            let dir_path = if include_root {
3181                worktree.read(cx).root_name().join(&dir_path)
3182            } else {
3183                dir_path
3184            };
3185
3186            self.workspace
3187                .update(cx, |workspace, cx| {
3188                    search::ProjectSearchView::new_search_in_directory(
3189                        workspace, &dir_path, window, cx,
3190                    );
3191                })
3192                .ok();
3193        }
3194    }
3195
3196    fn move_entry(
3197        &mut self,
3198        entry_to_move: ProjectEntryId,
3199        destination: ProjectEntryId,
3200        destination_is_file: bool,
3201        cx: &mut Context<Self>,
3202    ) {
3203        if self
3204            .project
3205            .read(cx)
3206            .entry_is_worktree_root(entry_to_move, cx)
3207        {
3208            self.move_worktree_root(entry_to_move, destination, cx)
3209        } else {
3210            self.move_worktree_entry(entry_to_move, destination, destination_is_file, cx)
3211        }
3212    }
3213
3214    fn move_worktree_root(
3215        &mut self,
3216        entry_to_move: ProjectEntryId,
3217        destination: ProjectEntryId,
3218        cx: &mut Context<Self>,
3219    ) {
3220        self.project.update(cx, |project, cx| {
3221            let Some(worktree_to_move) = project.worktree_for_entry(entry_to_move, cx) else {
3222                return;
3223            };
3224            let Some(destination_worktree) = project.worktree_for_entry(destination, cx) else {
3225                return;
3226            };
3227
3228            let worktree_id = worktree_to_move.read(cx).id();
3229            let destination_id = destination_worktree.read(cx).id();
3230
3231            project
3232                .move_worktree(worktree_id, destination_id, cx)
3233                .log_err();
3234        });
3235    }
3236
3237    fn move_worktree_entry(
3238        &mut self,
3239        entry_to_move: ProjectEntryId,
3240        destination_entry: ProjectEntryId,
3241        destination_is_file: bool,
3242        cx: &mut Context<Self>,
3243    ) {
3244        if entry_to_move == destination_entry {
3245            return;
3246        }
3247
3248        let destination_worktree = self.project.update(cx, |project, cx| {
3249            let source_path = project.path_for_entry(entry_to_move, cx)?;
3250            let destination_path = project.path_for_entry(destination_entry, cx)?;
3251            let destination_worktree_id = destination_path.worktree_id;
3252
3253            let mut destination_path = destination_path.path.as_ref();
3254            if destination_is_file {
3255                destination_path = destination_path.parent()?;
3256            }
3257
3258            let mut new_path = destination_path.to_rel_path_buf();
3259            new_path.push(RelPath::unix(source_path.path.file_name()?).unwrap());
3260            if new_path.as_rel_path() != source_path.path.as_ref() {
3261                let task = project.rename_entry(
3262                    entry_to_move,
3263                    (destination_worktree_id, new_path).into(),
3264                    cx,
3265                );
3266                cx.foreground_executor().spawn(task).detach_and_log_err(cx);
3267            }
3268
3269            project.worktree_id_for_entry(destination_entry, cx)
3270        });
3271
3272        if let Some(destination_worktree) = destination_worktree {
3273            self.expand_entry(destination_worktree, destination_entry, cx);
3274        }
3275    }
3276
3277    fn index_for_selection(&self, selection: SelectedEntry) -> Option<(usize, usize, usize)> {
3278        self.index_for_entry(selection.entry_id, selection.worktree_id)
3279    }
3280
3281    fn disjoint_entries(&self, cx: &App) -> BTreeSet<SelectedEntry> {
3282        let marked_entries = self.effective_entries();
3283        let mut sanitized_entries = BTreeSet::new();
3284        if marked_entries.is_empty() {
3285            return sanitized_entries;
3286        }
3287
3288        let project = self.project.read(cx);
3289        let marked_entries_by_worktree: HashMap<WorktreeId, Vec<SelectedEntry>> = marked_entries
3290            .into_iter()
3291            .filter(|entry| !project.entry_is_worktree_root(entry.entry_id, cx))
3292            .fold(HashMap::default(), |mut map, entry| {
3293                map.entry(entry.worktree_id).or_default().push(entry);
3294                map
3295            });
3296
3297        for (worktree_id, marked_entries) in marked_entries_by_worktree {
3298            if let Some(worktree) = project.worktree_for_id(worktree_id, cx) {
3299                let worktree = worktree.read(cx);
3300                let marked_dir_paths = marked_entries
3301                    .iter()
3302                    .filter_map(|entry| {
3303                        worktree.entry_for_id(entry.entry_id).and_then(|entry| {
3304                            if entry.is_dir() {
3305                                Some(entry.path.as_ref())
3306                            } else {
3307                                None
3308                            }
3309                        })
3310                    })
3311                    .collect::<BTreeSet<_>>();
3312
3313                sanitized_entries.extend(marked_entries.into_iter().filter(|entry| {
3314                    let Some(entry_info) = worktree.entry_for_id(entry.entry_id) else {
3315                        return false;
3316                    };
3317                    let entry_path = entry_info.path.as_ref();
3318                    let inside_marked_dir = marked_dir_paths.iter().any(|&marked_dir_path| {
3319                        entry_path != marked_dir_path && entry_path.starts_with(marked_dir_path)
3320                    });
3321                    !inside_marked_dir
3322                }));
3323            }
3324        }
3325
3326        sanitized_entries
3327    }
3328
3329    fn effective_entries(&self) -> BTreeSet<SelectedEntry> {
3330        if let Some(selection) = self.state.selection {
3331            let selection = SelectedEntry {
3332                entry_id: self.resolve_entry(selection.entry_id),
3333                worktree_id: selection.worktree_id,
3334            };
3335
3336            // Default to using just the selected item when nothing is marked.
3337            if self.marked_entries.is_empty() {
3338                return BTreeSet::from([selection]);
3339            }
3340
3341            // Allow operating on the selected item even when something else is marked,
3342            // making it easier to perform one-off actions without clearing a mark.
3343            if self.marked_entries.len() == 1 && !self.marked_entries.contains(&selection) {
3344                return BTreeSet::from([selection]);
3345            }
3346        }
3347
3348        // Return only marked entries since we've already handled special cases where
3349        // only selection should take precedence. At this point, marked entries may or
3350        // may not include the current selection, which is intentional.
3351        self.marked_entries
3352            .iter()
3353            .map(|entry| SelectedEntry {
3354                entry_id: self.resolve_entry(entry.entry_id),
3355                worktree_id: entry.worktree_id,
3356            })
3357            .collect::<BTreeSet<_>>()
3358    }
3359
3360    /// Finds the currently selected subentry for a given leaf entry id. If a given entry
3361    /// has no ancestors, the project entry ID that's passed in is returned as-is.
3362    fn resolve_entry(&self, id: ProjectEntryId) -> ProjectEntryId {
3363        self.state
3364            .ancestors
3365            .get(&id)
3366            .and_then(|ancestors| ancestors.active_ancestor())
3367            .unwrap_or(id)
3368    }
3369
3370    pub fn selected_entry<'a>(&self, cx: &'a App) -> Option<(&'a Worktree, &'a project::Entry)> {
3371        let (worktree, entry) = self.selected_entry_handle(cx)?;
3372        Some((worktree.read(cx), entry))
3373    }
3374
3375    /// Compared to selected_entry, this function resolves to the currently
3376    /// selected subentry if dir auto-folding is enabled.
3377    fn selected_sub_entry<'a>(
3378        &self,
3379        cx: &'a App,
3380    ) -> Option<(Entity<Worktree>, &'a project::Entry)> {
3381        let (worktree, mut entry) = self.selected_entry_handle(cx)?;
3382
3383        let resolved_id = self.resolve_entry(entry.id);
3384        if resolved_id != entry.id {
3385            let worktree = worktree.read(cx);
3386            entry = worktree.entry_for_id(resolved_id)?;
3387        }
3388        Some((worktree, entry))
3389    }
3390    fn selected_entry_handle<'a>(
3391        &self,
3392        cx: &'a App,
3393    ) -> Option<(Entity<Worktree>, &'a project::Entry)> {
3394        let selection = self.state.selection?;
3395        let project = self.project.read(cx);
3396        let worktree = project.worktree_for_id(selection.worktree_id, cx)?;
3397        let entry = worktree.read(cx).entry_for_id(selection.entry_id)?;
3398        Some((worktree, entry))
3399    }
3400
3401    fn expand_to_selection(&mut self, cx: &mut Context<Self>) -> Option<()> {
3402        let (worktree, entry) = self.selected_entry(cx)?;
3403        let expanded_dir_ids = self
3404            .state
3405            .expanded_dir_ids
3406            .entry(worktree.id())
3407            .or_default();
3408
3409        for path in entry.path.ancestors() {
3410            let Some(entry) = worktree.entry_for_path(path) else {
3411                continue;
3412            };
3413            if entry.is_dir()
3414                && let Err(idx) = expanded_dir_ids.binary_search(&entry.id)
3415            {
3416                expanded_dir_ids.insert(idx, entry.id);
3417            }
3418        }
3419
3420        Some(())
3421    }
3422
3423    fn create_new_git_entry(
3424        parent_entry: &Entry,
3425        git_summary: GitSummary,
3426        new_entry_kind: EntryKind,
3427    ) -> GitEntry {
3428        GitEntry {
3429            entry: Entry {
3430                id: NEW_ENTRY_ID,
3431                kind: new_entry_kind,
3432                path: parent_entry.path.join(RelPath::unix("\0").unwrap()),
3433                inode: 0,
3434                mtime: parent_entry.mtime,
3435                size: parent_entry.size,
3436                is_ignored: parent_entry.is_ignored,
3437                is_hidden: parent_entry.is_hidden,
3438                is_external: false,
3439                is_private: false,
3440                is_always_included: parent_entry.is_always_included,
3441                canonical_path: parent_entry.canonical_path.clone(),
3442                char_bag: parent_entry.char_bag,
3443                is_fifo: parent_entry.is_fifo,
3444            },
3445            git_summary,
3446        }
3447    }
3448
3449    fn update_visible_entries(
3450        &mut self,
3451        new_selected_entry: Option<(WorktreeId, ProjectEntryId)>,
3452        focus_filename_editor: bool,
3453        autoscroll: bool,
3454        window: &mut Window,
3455        cx: &mut Context<Self>,
3456    ) {
3457        let now = Instant::now();
3458        let settings = ProjectPanelSettings::get_global(cx);
3459        let auto_collapse_dirs = settings.auto_fold_dirs;
3460        let hide_gitignore = settings.hide_gitignore;
3461        let sort_mode = settings.sort_mode;
3462        let project = self.project.read(cx);
3463        let repo_snapshots = project.git_store().read(cx).repo_snapshots(cx);
3464
3465        let old_ancestors = self.state.ancestors.clone();
3466        let mut new_state = State::derive(&self.state);
3467        new_state.last_worktree_root_id = project
3468            .visible_worktrees(cx)
3469            .next_back()
3470            .and_then(|worktree| worktree.read(cx).root_entry())
3471            .map(|entry| entry.id);
3472        let mut max_width_item = None;
3473
3474        let visible_worktrees: Vec<_> = project
3475            .visible_worktrees(cx)
3476            .map(|worktree| worktree.read(cx).snapshot())
3477            .collect();
3478        let hide_root = settings.hide_root && visible_worktrees.len() == 1;
3479        let hide_hidden = settings.hide_hidden;
3480
3481        let visible_entries_task = cx.spawn_in(window, async move |this, cx| {
3482            let new_state = cx
3483                .background_spawn(async move {
3484                    for worktree_snapshot in visible_worktrees {
3485                        let worktree_id = worktree_snapshot.id();
3486
3487                        let expanded_dir_ids = match new_state.expanded_dir_ids.entry(worktree_id) {
3488                            hash_map::Entry::Occupied(e) => e.into_mut(),
3489                            hash_map::Entry::Vacant(e) => {
3490                                // The first time a worktree's root entry becomes available,
3491                                // mark that root entry as expanded.
3492                                if let Some(entry) = worktree_snapshot.root_entry() {
3493                                    e.insert(vec![entry.id]).as_slice()
3494                                } else {
3495                                    &[]
3496                                }
3497                            }
3498                        };
3499
3500                        let mut new_entry_parent_id = None;
3501                        let mut new_entry_kind = EntryKind::Dir;
3502                        if let Some(edit_state) = &new_state.edit_state
3503                            && edit_state.worktree_id == worktree_id
3504                            && edit_state.is_new_entry()
3505                        {
3506                            new_entry_parent_id = Some(edit_state.entry_id);
3507                            new_entry_kind = if edit_state.is_dir {
3508                                EntryKind::Dir
3509                            } else {
3510                                EntryKind::File
3511                            };
3512                        }
3513
3514                        let mut visible_worktree_entries = Vec::new();
3515                        let mut entry_iter =
3516                            GitTraversal::new(&repo_snapshots, worktree_snapshot.entries(true, 0));
3517                        let mut auto_folded_ancestors = vec![];
3518                        let worktree_abs_path = worktree_snapshot.abs_path();
3519                        while let Some(entry) = entry_iter.entry() {
3520                            if hide_root && Some(entry.entry) == worktree_snapshot.root_entry() {
3521                                if new_entry_parent_id == Some(entry.id) {
3522                                    visible_worktree_entries.push(Self::create_new_git_entry(
3523                                        entry.entry,
3524                                        entry.git_summary,
3525                                        new_entry_kind,
3526                                    ));
3527                                    new_entry_parent_id = None;
3528                                }
3529                                entry_iter.advance();
3530                                continue;
3531                            }
3532                            if auto_collapse_dirs && entry.kind.is_dir() {
3533                                auto_folded_ancestors.push(entry.id);
3534                                if !new_state.unfolded_dir_ids.contains(&entry.id)
3535                                    && let Some(root_path) = worktree_snapshot.root_entry()
3536                                {
3537                                    let mut child_entries =
3538                                        worktree_snapshot.child_entries(&entry.path);
3539                                    if let Some(child) = child_entries.next()
3540                                        && entry.path != root_path.path
3541                                        && child_entries.next().is_none()
3542                                        && child.kind.is_dir()
3543                                    {
3544                                        entry_iter.advance();
3545
3546                                        continue;
3547                                    }
3548                                }
3549                                let depth = old_ancestors
3550                                    .get(&entry.id)
3551                                    .map(|ancestor| ancestor.current_ancestor_depth)
3552                                    .unwrap_or_default()
3553                                    .min(auto_folded_ancestors.len());
3554                                if let Some(edit_state) = &mut new_state.edit_state
3555                                    && edit_state.entry_id == entry.id
3556                                {
3557                                    edit_state.depth = depth;
3558                                }
3559                                let mut ancestors = std::mem::take(&mut auto_folded_ancestors);
3560                                if ancestors.len() > 1 {
3561                                    ancestors.reverse();
3562                                    new_state.ancestors.insert(
3563                                        entry.id,
3564                                        FoldedAncestors {
3565                                            current_ancestor_depth: depth,
3566                                            ancestors,
3567                                        },
3568                                    );
3569                                }
3570                            }
3571                            auto_folded_ancestors.clear();
3572                            if (!hide_gitignore || !entry.is_ignored)
3573                                && (!hide_hidden || !entry.is_hidden)
3574                            {
3575                                visible_worktree_entries.push(entry.to_owned());
3576                            }
3577                            let precedes_new_entry = if let Some(new_entry_id) = new_entry_parent_id
3578                            {
3579                                entry.id == new_entry_id || {
3580                                    new_state.ancestors.get(&entry.id).is_some_and(|entries| {
3581                                        entries.ancestors.contains(&new_entry_id)
3582                                    })
3583                                }
3584                            } else {
3585                                false
3586                            };
3587                            if precedes_new_entry
3588                                && (!hide_gitignore || !entry.is_ignored)
3589                                && (!hide_hidden || !entry.is_hidden)
3590                            {
3591                                visible_worktree_entries.push(Self::create_new_git_entry(
3592                                    entry.entry,
3593                                    entry.git_summary,
3594                                    new_entry_kind,
3595                                ));
3596                            }
3597
3598                            let (depth, chars) = if Some(entry.entry)
3599                                == worktree_snapshot.root_entry()
3600                            {
3601                                let Some(path_name) = worktree_abs_path.file_name() else {
3602                                    continue;
3603                                };
3604                                let depth = 0;
3605                                (depth, path_name.to_string_lossy().chars().count())
3606                            } else if entry.is_file() {
3607                                let Some(path_name) = entry
3608                                    .path
3609                                    .file_name()
3610                                    .with_context(|| {
3611                                        format!("Non-root entry has no file name: {entry:?}")
3612                                    })
3613                                    .log_err()
3614                                else {
3615                                    continue;
3616                                };
3617                                let depth = entry.path.ancestors().count() - 1;
3618                                (depth, path_name.chars().count())
3619                            } else {
3620                                let path = new_state
3621                                    .ancestors
3622                                    .get(&entry.id)
3623                                    .and_then(|ancestors| {
3624                                        let outermost_ancestor = ancestors.ancestors.last()?;
3625                                        let root_folded_entry = worktree_snapshot
3626                                            .entry_for_id(*outermost_ancestor)?
3627                                            .path
3628                                            .as_ref();
3629                                        entry.path.strip_prefix(root_folded_entry).ok().and_then(
3630                                            |suffix| {
3631                                                Some(
3632                                                    RelPath::unix(root_folded_entry.file_name()?)
3633                                                        .unwrap()
3634                                                        .join(suffix),
3635                                                )
3636                                            },
3637                                        )
3638                                    })
3639                                    .or_else(|| {
3640                                        entry.path.file_name().map(|file_name| {
3641                                            RelPath::unix(file_name).unwrap().into()
3642                                        })
3643                                    })
3644                                    .unwrap_or_else(|| entry.path.clone());
3645                                let depth = path.components().count();
3646                                (depth, path.as_unix_str().chars().count())
3647                            };
3648                            let width_estimate =
3649                                item_width_estimate(depth, chars, entry.canonical_path.is_some());
3650
3651                            match max_width_item.as_mut() {
3652                                Some((id, worktree_id, width)) => {
3653                                    if *width < width_estimate {
3654                                        *id = entry.id;
3655                                        *worktree_id = worktree_snapshot.id();
3656                                        *width = width_estimate;
3657                                    }
3658                                }
3659                                None => {
3660                                    max_width_item =
3661                                        Some((entry.id, worktree_snapshot.id(), width_estimate))
3662                                }
3663                            }
3664
3665                            if expanded_dir_ids.binary_search(&entry.id).is_err()
3666                                && entry_iter.advance_to_sibling()
3667                            {
3668                                continue;
3669                            }
3670                            entry_iter.advance();
3671                        }
3672
3673                        par_sort_worktree_entries_with_mode(
3674                            &mut visible_worktree_entries,
3675                            sort_mode,
3676                        );
3677                        new_state.visible_entries.push(VisibleEntriesForWorktree {
3678                            worktree_id,
3679                            entries: visible_worktree_entries,
3680                            index: OnceCell::new(),
3681                        })
3682                    }
3683                    if let Some((project_entry_id, worktree_id, _)) = max_width_item {
3684                        let mut visited_worktrees_length = 0;
3685                        let index = new_state
3686                            .visible_entries
3687                            .iter()
3688                            .find_map(|visible_entries| {
3689                                if worktree_id == visible_entries.worktree_id {
3690                                    visible_entries
3691                                        .entries
3692                                        .iter()
3693                                        .position(|entry| entry.id == project_entry_id)
3694                                } else {
3695                                    visited_worktrees_length += visible_entries.entries.len();
3696                                    None
3697                                }
3698                            });
3699                        if let Some(index) = index {
3700                            new_state.max_width_item_index = Some(visited_worktrees_length + index);
3701                        }
3702                    }
3703                    new_state
3704                })
3705                .await;
3706            this.update_in(cx, |this, window, cx| {
3707                let current_selection = this.state.selection;
3708                this.state = new_state;
3709                if let Some((worktree_id, entry_id)) = new_selected_entry {
3710                    this.state.selection = Some(SelectedEntry {
3711                        worktree_id,
3712                        entry_id,
3713                    });
3714                } else {
3715                    this.state.selection = current_selection;
3716                }
3717                let elapsed = now.elapsed();
3718                if this.last_reported_update.elapsed() > Duration::from_secs(3600) {
3719                    telemetry::event!(
3720                        "Project Panel Updated",
3721                        elapsed_ms = elapsed.as_millis() as u64,
3722                        worktree_entries = this
3723                            .state
3724                            .visible_entries
3725                            .iter()
3726                            .map(|worktree| worktree.entries.len())
3727                            .sum::<usize>(),
3728                    )
3729                }
3730                if this.update_visible_entries_task.focus_filename_editor {
3731                    this.update_visible_entries_task.focus_filename_editor = false;
3732                    this.filename_editor.update(cx, |editor, cx| {
3733                        window.focus(&editor.focus_handle(cx), cx);
3734                    });
3735                }
3736                if this.update_visible_entries_task.autoscroll {
3737                    this.update_visible_entries_task.autoscroll = false;
3738                    this.autoscroll(cx);
3739                }
3740                cx.notify();
3741            })
3742            .ok();
3743        });
3744
3745        self.update_visible_entries_task = UpdateVisibleEntriesTask {
3746            _visible_entries_task: visible_entries_task,
3747            focus_filename_editor: focus_filename_editor
3748                || self.update_visible_entries_task.focus_filename_editor,
3749            autoscroll: autoscroll || self.update_visible_entries_task.autoscroll,
3750        };
3751    }
3752
3753    fn expand_entry(
3754        &mut self,
3755        worktree_id: WorktreeId,
3756        entry_id: ProjectEntryId,
3757        cx: &mut Context<Self>,
3758    ) {
3759        self.project.update(cx, |project, cx| {
3760            if let Some((worktree, expanded_dir_ids)) = project
3761                .worktree_for_id(worktree_id, cx)
3762                .zip(self.state.expanded_dir_ids.get_mut(&worktree_id))
3763            {
3764                project.expand_entry(worktree_id, entry_id, cx);
3765                let worktree = worktree.read(cx);
3766
3767                if let Some(mut entry) = worktree.entry_for_id(entry_id) {
3768                    loop {
3769                        if let Err(ix) = expanded_dir_ids.binary_search(&entry.id) {
3770                            expanded_dir_ids.insert(ix, entry.id);
3771                        }
3772
3773                        if let Some(parent_entry) =
3774                            entry.path.parent().and_then(|p| worktree.entry_for_path(p))
3775                        {
3776                            entry = parent_entry;
3777                        } else {
3778                            break;
3779                        }
3780                    }
3781                }
3782            }
3783        });
3784    }
3785
3786    fn drop_external_files(
3787        &mut self,
3788        paths: &[PathBuf],
3789        entry_id: ProjectEntryId,
3790        window: &mut Window,
3791        cx: &mut Context<Self>,
3792    ) {
3793        let mut paths: Vec<Arc<Path>> = paths.iter().map(|path| Arc::from(path.clone())).collect();
3794
3795        let open_file_after_drop = paths.len() == 1 && paths[0].is_file();
3796
3797        let Some((target_directory, worktree, fs)) = maybe!({
3798            let project = self.project.read(cx);
3799            let fs = project.fs().clone();
3800            let worktree = project.worktree_for_entry(entry_id, cx)?;
3801            let entry = worktree.read(cx).entry_for_id(entry_id)?;
3802            let path = entry.path.clone();
3803            let target_directory = if entry.is_dir() {
3804                path
3805            } else {
3806                path.parent()?.into()
3807            };
3808            Some((target_directory, worktree, fs))
3809        }) else {
3810            return;
3811        };
3812
3813        let mut paths_to_replace = Vec::new();
3814        for path in &paths {
3815            if let Some(name) = path.file_name()
3816                && let Some(name) = name.to_str()
3817            {
3818                let target_path = target_directory.join(RelPath::unix(name).unwrap());
3819                if worktree.read(cx).entry_for_path(&target_path).is_some() {
3820                    paths_to_replace.push((name.to_string(), path.clone()));
3821                }
3822            }
3823        }
3824
3825        cx.spawn_in(window, async move |this, cx| {
3826            async move {
3827                for (filename, original_path) in &paths_to_replace {
3828                    let prompt_message = format!(
3829                        concat!(
3830                            "A file or folder with name {} ",
3831                            "already exists in the destination folder. ",
3832                            "Do you want to replace it?"
3833                        ),
3834                        filename
3835                    );
3836                    let answer = cx
3837                        .update(|window, cx| {
3838                            window.prompt(
3839                                PromptLevel::Info,
3840                                &prompt_message,
3841                                None,
3842                                &["Replace", "Cancel"],
3843                                cx,
3844                            )
3845                        })?
3846                        .await?;
3847
3848                    if answer == 1
3849                        && let Some(item_idx) = paths.iter().position(|p| p == original_path)
3850                    {
3851                        paths.remove(item_idx);
3852                    }
3853                }
3854
3855                if paths.is_empty() {
3856                    return Ok(());
3857                }
3858
3859                let task = worktree.update(cx, |worktree, cx| {
3860                    worktree.copy_external_entries(target_directory, paths, fs, cx)
3861                })?;
3862
3863                let opened_entries = task
3864                    .await
3865                    .with_context(|| "failed to copy external paths")?;
3866                this.update(cx, |this, cx| {
3867                    if open_file_after_drop && !opened_entries.is_empty() {
3868                        let settings = ProjectPanelSettings::get_global(cx);
3869                        if settings.auto_open.should_open_on_drop() {
3870                            this.open_entry(opened_entries[0], true, false, cx);
3871                        }
3872                    }
3873                })
3874            }
3875            .log_err()
3876            .await
3877        })
3878        .detach();
3879    }
3880
3881    fn refresh_drag_cursor_style(
3882        &self,
3883        modifiers: &Modifiers,
3884        window: &mut Window,
3885        cx: &mut Context<Self>,
3886    ) {
3887        if let Some(existing_cursor) = cx.active_drag_cursor_style() {
3888            let new_cursor = if Self::is_copy_modifier_set(modifiers) {
3889                CursorStyle::DragCopy
3890            } else {
3891                CursorStyle::PointingHand
3892            };
3893            if existing_cursor != new_cursor {
3894                cx.set_active_drag_cursor_style(new_cursor, window);
3895            }
3896        }
3897    }
3898
3899    fn is_copy_modifier_set(modifiers: &Modifiers) -> bool {
3900        cfg!(target_os = "macos") && modifiers.alt
3901            || cfg!(not(target_os = "macos")) && modifiers.control
3902    }
3903
3904    fn drag_onto(
3905        &mut self,
3906        selections: &DraggedSelection,
3907        target_entry_id: ProjectEntryId,
3908        is_file: bool,
3909        window: &mut Window,
3910        cx: &mut Context<Self>,
3911    ) {
3912        if Self::is_copy_modifier_set(&window.modifiers()) {
3913            let _ = maybe!({
3914                let project = self.project.read(cx);
3915                let target_worktree = project.worktree_for_entry(target_entry_id, cx)?;
3916                let worktree_id = target_worktree.read(cx).id();
3917                let target_entry = target_worktree
3918                    .read(cx)
3919                    .entry_for_id(target_entry_id)?
3920                    .clone();
3921
3922                let mut copy_tasks = Vec::new();
3923                let mut disambiguation_range = None;
3924                for selection in selections.items() {
3925                    let (new_path, new_disambiguation_range) = self.create_paste_path(
3926                        selection,
3927                        (target_worktree.clone(), &target_entry),
3928                        cx,
3929                    )?;
3930
3931                    let task = self.project.update(cx, |project, cx| {
3932                        project.copy_entry(selection.entry_id, (worktree_id, new_path).into(), cx)
3933                    });
3934                    copy_tasks.push(task);
3935                    disambiguation_range = new_disambiguation_range.or(disambiguation_range);
3936                }
3937
3938                let item_count = copy_tasks.len();
3939
3940                cx.spawn_in(window, async move |project_panel, cx| {
3941                    let mut last_succeed = None;
3942                    for task in copy_tasks.into_iter() {
3943                        if let Some(Some(entry)) = task.await.log_err() {
3944                            last_succeed = Some(entry.id);
3945                        }
3946                    }
3947                    // update selection
3948                    if let Some(entry_id) = last_succeed {
3949                        project_panel
3950                            .update_in(cx, |project_panel, window, cx| {
3951                                project_panel.state.selection = Some(SelectedEntry {
3952                                    worktree_id,
3953                                    entry_id,
3954                                });
3955
3956                                // if only one entry was dragged and it was disambiguated, open the rename editor
3957                                if item_count == 1 && disambiguation_range.is_some() {
3958                                    project_panel.rename_impl(disambiguation_range, window, cx);
3959                                }
3960                            })
3961                            .ok();
3962                    }
3963                })
3964                .detach();
3965                Some(())
3966            });
3967        } else {
3968            for selection in selections.items() {
3969                self.move_entry(selection.entry_id, target_entry_id, is_file, cx);
3970            }
3971        }
3972    }
3973
3974    fn index_for_entry(
3975        &self,
3976        entry_id: ProjectEntryId,
3977        worktree_id: WorktreeId,
3978    ) -> Option<(usize, usize, usize)> {
3979        let mut total_ix = 0;
3980        for (worktree_ix, visible) in self.state.visible_entries.iter().enumerate() {
3981            if worktree_id != visible.worktree_id {
3982                total_ix += visible.entries.len();
3983                continue;
3984            }
3985
3986            return visible
3987                .entries
3988                .iter()
3989                .enumerate()
3990                .find(|(_, entry)| entry.id == entry_id)
3991                .map(|(ix, _)| (worktree_ix, ix, total_ix + ix));
3992        }
3993        None
3994    }
3995
3996    fn entry_at_index(&self, index: usize) -> Option<(WorktreeId, GitEntryRef<'_>)> {
3997        let mut offset = 0;
3998        for worktree in &self.state.visible_entries {
3999            let current_len = worktree.entries.len();
4000            if index < offset + current_len {
4001                return worktree
4002                    .entries
4003                    .get(index - offset)
4004                    .map(|entry| (worktree.worktree_id, entry.to_ref()));
4005            }
4006            offset += current_len;
4007        }
4008        None
4009    }
4010
4011    fn iter_visible_entries(
4012        &self,
4013        range: Range<usize>,
4014        window: &mut Window,
4015        cx: &mut Context<ProjectPanel>,
4016        mut callback: impl FnMut(
4017            &Entry,
4018            usize,
4019            &HashSet<Arc<RelPath>>,
4020            &mut Window,
4021            &mut Context<ProjectPanel>,
4022        ),
4023    ) {
4024        let mut ix = 0;
4025        for visible in &self.state.visible_entries {
4026            if ix >= range.end {
4027                return;
4028            }
4029
4030            if ix + visible.entries.len() <= range.start {
4031                ix += visible.entries.len();
4032                continue;
4033            }
4034
4035            let end_ix = range.end.min(ix + visible.entries.len());
4036            let entry_range = range.start.saturating_sub(ix)..end_ix - ix;
4037            let entries = visible
4038                .index
4039                .get_or_init(|| visible.entries.iter().map(|e| e.path.clone()).collect());
4040            let base_index = ix + entry_range.start;
4041            for (i, entry) in visible.entries[entry_range].iter().enumerate() {
4042                let global_index = base_index + i;
4043                callback(entry, global_index, entries, window, cx);
4044            }
4045            ix = end_ix;
4046        }
4047    }
4048
4049    fn for_each_visible_entry(
4050        &self,
4051        range: Range<usize>,
4052        window: &mut Window,
4053        cx: &mut Context<ProjectPanel>,
4054        mut callback: impl FnMut(ProjectEntryId, EntryDetails, &mut Window, &mut Context<ProjectPanel>),
4055    ) {
4056        let mut ix = 0;
4057        for visible in &self.state.visible_entries {
4058            if ix >= range.end {
4059                return;
4060            }
4061
4062            if ix + visible.entries.len() <= range.start {
4063                ix += visible.entries.len();
4064                continue;
4065            }
4066
4067            let end_ix = range.end.min(ix + visible.entries.len());
4068            let git_status_setting = {
4069                let settings = ProjectPanelSettings::get_global(cx);
4070                settings.git_status
4071            };
4072            if let Some(worktree) = self
4073                .project
4074                .read(cx)
4075                .worktree_for_id(visible.worktree_id, cx)
4076            {
4077                let snapshot = worktree.read(cx).snapshot();
4078                let root_name = snapshot.root_name();
4079
4080                let entry_range = range.start.saturating_sub(ix)..end_ix - ix;
4081                let entries = visible
4082                    .index
4083                    .get_or_init(|| visible.entries.iter().map(|e| e.path.clone()).collect());
4084                for entry in visible.entries[entry_range].iter() {
4085                    let status = git_status_setting
4086                        .then_some(entry.git_summary)
4087                        .unwrap_or_default();
4088
4089                    let mut details = self.details_for_entry(
4090                        entry,
4091                        visible.worktree_id,
4092                        root_name,
4093                        entries,
4094                        status,
4095                        None,
4096                        window,
4097                        cx,
4098                    );
4099
4100                    if let Some(edit_state) = &self.state.edit_state {
4101                        let is_edited_entry = if edit_state.is_new_entry() {
4102                            entry.id == NEW_ENTRY_ID
4103                        } else {
4104                            entry.id == edit_state.entry_id
4105                                || self.state.ancestors.get(&entry.id).is_some_and(
4106                                    |auto_folded_dirs| {
4107                                        auto_folded_dirs.ancestors.contains(&edit_state.entry_id)
4108                                    },
4109                                )
4110                        };
4111
4112                        if is_edited_entry {
4113                            if let Some(processing_filename) = &edit_state.processing_filename {
4114                                details.is_processing = true;
4115                                if let Some(ancestors) = edit_state
4116                                    .leaf_entry_id
4117                                    .and_then(|entry| self.state.ancestors.get(&entry))
4118                                {
4119                                    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;
4120                                    let all_components = ancestors.ancestors.len();
4121
4122                                    let prefix_components = all_components - position;
4123                                    let suffix_components = position.checked_sub(1);
4124                                    let mut previous_components =
4125                                        Path::new(&details.filename).components();
4126                                    let mut new_path = previous_components
4127                                        .by_ref()
4128                                        .take(prefix_components)
4129                                        .collect::<PathBuf>();
4130                                    if let Some(last_component) =
4131                                        processing_filename.components().next_back()
4132                                    {
4133                                        new_path.push(last_component);
4134                                        previous_components.next();
4135                                    }
4136
4137                                    if suffix_components.is_some() {
4138                                        new_path.push(previous_components);
4139                                    }
4140                                    if let Some(str) = new_path.to_str() {
4141                                        details.filename.clear();
4142                                        details.filename.push_str(str);
4143                                    }
4144                                } else {
4145                                    details.filename.clear();
4146                                    details.filename.push_str(processing_filename.as_unix_str());
4147                                }
4148                            } else {
4149                                if edit_state.is_new_entry() {
4150                                    details.filename.clear();
4151                                }
4152                                details.is_editing = true;
4153                            }
4154                        }
4155                    }
4156
4157                    callback(entry.id, details, window, cx);
4158                }
4159            }
4160            ix = end_ix;
4161        }
4162    }
4163
4164    fn find_entry_in_worktree(
4165        &self,
4166        worktree_id: WorktreeId,
4167        reverse_search: bool,
4168        only_visible_entries: bool,
4169        predicate: impl Fn(GitEntryRef, WorktreeId) -> bool,
4170        cx: &mut Context<Self>,
4171    ) -> Option<GitEntry> {
4172        if only_visible_entries {
4173            let entries = self
4174                .state
4175                .visible_entries
4176                .iter()
4177                .find_map(|visible| {
4178                    if worktree_id == visible.worktree_id {
4179                        Some(&visible.entries)
4180                    } else {
4181                        None
4182                    }
4183                })?
4184                .clone();
4185
4186            return utils::ReversibleIterable::new(entries.iter(), reverse_search)
4187                .find(|ele| predicate(ele.to_ref(), worktree_id))
4188                .cloned();
4189        }
4190
4191        let repo_snapshots = self
4192            .project
4193            .read(cx)
4194            .git_store()
4195            .read(cx)
4196            .repo_snapshots(cx);
4197        let worktree = self.project.read(cx).worktree_for_id(worktree_id, cx)?;
4198        worktree.read_with(cx, |tree, _| {
4199            utils::ReversibleIterable::new(
4200                GitTraversal::new(&repo_snapshots, tree.entries(true, 0usize)),
4201                reverse_search,
4202            )
4203            .find_single_ended(|ele| predicate(*ele, worktree_id))
4204            .map(|ele| ele.to_owned())
4205        })
4206    }
4207
4208    fn find_entry(
4209        &self,
4210        start: Option<&SelectedEntry>,
4211        reverse_search: bool,
4212        predicate: impl Fn(GitEntryRef, WorktreeId) -> bool,
4213        cx: &mut Context<Self>,
4214    ) -> Option<SelectedEntry> {
4215        let mut worktree_ids: Vec<_> = self
4216            .state
4217            .visible_entries
4218            .iter()
4219            .map(|worktree| worktree.worktree_id)
4220            .collect();
4221        let repo_snapshots = self
4222            .project
4223            .read(cx)
4224            .git_store()
4225            .read(cx)
4226            .repo_snapshots(cx);
4227
4228        let mut last_found: Option<SelectedEntry> = None;
4229
4230        if let Some(start) = start {
4231            let worktree = self
4232                .project
4233                .read(cx)
4234                .worktree_for_id(start.worktree_id, cx)?
4235                .read(cx);
4236
4237            let search = {
4238                let entry = worktree.entry_for_id(start.entry_id)?;
4239                let root_entry = worktree.root_entry()?;
4240                let tree_id = worktree.id();
4241
4242                let mut first_iter = GitTraversal::new(
4243                    &repo_snapshots,
4244                    worktree.traverse_from_path(true, true, true, entry.path.as_ref()),
4245                );
4246
4247                if reverse_search {
4248                    first_iter.next();
4249                }
4250
4251                let first = first_iter
4252                    .enumerate()
4253                    .take_until(|(count, entry)| entry.entry == root_entry && *count != 0usize)
4254                    .map(|(_, entry)| entry)
4255                    .find(|ele| predicate(*ele, tree_id))
4256                    .map(|ele| ele.to_owned());
4257
4258                let second_iter =
4259                    GitTraversal::new(&repo_snapshots, worktree.entries(true, 0usize));
4260
4261                let second = if reverse_search {
4262                    second_iter
4263                        .take_until(|ele| ele.id == start.entry_id)
4264                        .filter(|ele| predicate(*ele, tree_id))
4265                        .last()
4266                        .map(|ele| ele.to_owned())
4267                } else {
4268                    second_iter
4269                        .take_while(|ele| ele.id != start.entry_id)
4270                        .filter(|ele| predicate(*ele, tree_id))
4271                        .last()
4272                        .map(|ele| ele.to_owned())
4273                };
4274
4275                if reverse_search {
4276                    Some((second, first))
4277                } else {
4278                    Some((first, second))
4279                }
4280            };
4281
4282            if let Some((first, second)) = search {
4283                let first = first.map(|entry| SelectedEntry {
4284                    worktree_id: start.worktree_id,
4285                    entry_id: entry.id,
4286                });
4287
4288                let second = second.map(|entry| SelectedEntry {
4289                    worktree_id: start.worktree_id,
4290                    entry_id: entry.id,
4291                });
4292
4293                if first.is_some() {
4294                    return first;
4295                }
4296                last_found = second;
4297
4298                let idx = worktree_ids
4299                    .iter()
4300                    .enumerate()
4301                    .find(|(_, ele)| **ele == start.worktree_id)
4302                    .map(|(idx, _)| idx);
4303
4304                if let Some(idx) = idx {
4305                    worktree_ids.rotate_left(idx + 1usize);
4306                    worktree_ids.pop();
4307                }
4308            }
4309        }
4310
4311        for tree_id in worktree_ids.into_iter() {
4312            if let Some(found) =
4313                self.find_entry_in_worktree(tree_id, reverse_search, false, &predicate, cx)
4314            {
4315                return Some(SelectedEntry {
4316                    worktree_id: tree_id,
4317                    entry_id: found.id,
4318                });
4319            }
4320        }
4321
4322        last_found
4323    }
4324
4325    fn find_visible_entry(
4326        &self,
4327        start: Option<&SelectedEntry>,
4328        reverse_search: bool,
4329        predicate: impl Fn(GitEntryRef, WorktreeId) -> bool,
4330        cx: &mut Context<Self>,
4331    ) -> Option<SelectedEntry> {
4332        let mut worktree_ids: Vec<_> = self
4333            .state
4334            .visible_entries
4335            .iter()
4336            .map(|worktree| worktree.worktree_id)
4337            .collect();
4338
4339        let mut last_found: Option<SelectedEntry> = None;
4340
4341        if let Some(start) = start {
4342            let entries = self
4343                .state
4344                .visible_entries
4345                .iter()
4346                .find(|worktree| worktree.worktree_id == start.worktree_id)
4347                .map(|worktree| &worktree.entries)?;
4348
4349            let mut start_idx = entries
4350                .iter()
4351                .enumerate()
4352                .find(|(_, ele)| ele.id == start.entry_id)
4353                .map(|(idx, _)| idx)?;
4354
4355            if reverse_search {
4356                start_idx = start_idx.saturating_add(1usize);
4357            }
4358
4359            let (left, right) = entries.split_at_checked(start_idx)?;
4360
4361            let (first_iter, second_iter) = if reverse_search {
4362                (
4363                    utils::ReversibleIterable::new(left.iter(), reverse_search),
4364                    utils::ReversibleIterable::new(right.iter(), reverse_search),
4365                )
4366            } else {
4367                (
4368                    utils::ReversibleIterable::new(right.iter(), reverse_search),
4369                    utils::ReversibleIterable::new(left.iter(), reverse_search),
4370                )
4371            };
4372
4373            let first_search = first_iter.find(|ele| predicate(ele.to_ref(), start.worktree_id));
4374            let second_search = second_iter.find(|ele| predicate(ele.to_ref(), start.worktree_id));
4375
4376            if first_search.is_some() {
4377                return first_search.map(|entry| SelectedEntry {
4378                    worktree_id: start.worktree_id,
4379                    entry_id: entry.id,
4380                });
4381            }
4382
4383            last_found = second_search.map(|entry| SelectedEntry {
4384                worktree_id: start.worktree_id,
4385                entry_id: entry.id,
4386            });
4387
4388            let idx = worktree_ids
4389                .iter()
4390                .enumerate()
4391                .find(|(_, ele)| **ele == start.worktree_id)
4392                .map(|(idx, _)| idx);
4393
4394            if let Some(idx) = idx {
4395                worktree_ids.rotate_left(idx + 1usize);
4396                worktree_ids.pop();
4397            }
4398        }
4399
4400        for tree_id in worktree_ids.into_iter() {
4401            if let Some(found) =
4402                self.find_entry_in_worktree(tree_id, reverse_search, true, &predicate, cx)
4403            {
4404                return Some(SelectedEntry {
4405                    worktree_id: tree_id,
4406                    entry_id: found.id,
4407                });
4408            }
4409        }
4410
4411        last_found
4412    }
4413
4414    fn calculate_depth_and_difference(
4415        entry: &Entry,
4416        visible_worktree_entries: &HashSet<Arc<RelPath>>,
4417    ) -> (usize, usize) {
4418        let (depth, difference) = entry
4419            .path
4420            .ancestors()
4421            .skip(1) // Skip the entry itself
4422            .find_map(|ancestor| {
4423                if let Some(parent_entry) = visible_worktree_entries.get(ancestor) {
4424                    let entry_path_components_count = entry.path.components().count();
4425                    let parent_path_components_count = parent_entry.components().count();
4426                    let difference = entry_path_components_count - parent_path_components_count;
4427                    let depth = parent_entry
4428                        .ancestors()
4429                        .skip(1)
4430                        .filter(|ancestor| visible_worktree_entries.contains(*ancestor))
4431                        .count();
4432                    Some((depth + 1, difference))
4433                } else {
4434                    None
4435                }
4436            })
4437            .unwrap_or_else(|| (0, entry.path.components().count()));
4438
4439        (depth, difference)
4440    }
4441
4442    fn highlight_entry_for_external_drag(
4443        &self,
4444        target_entry: &Entry,
4445        target_worktree: &Worktree,
4446    ) -> Option<ProjectEntryId> {
4447        // Always highlight directory or parent directory if it's file
4448        if target_entry.is_dir() {
4449            Some(target_entry.id)
4450        } else {
4451            target_entry
4452                .path
4453                .parent()
4454                .and_then(|parent_path| target_worktree.entry_for_path(parent_path))
4455                .map(|parent_entry| parent_entry.id)
4456        }
4457    }
4458
4459    fn highlight_entry_for_selection_drag(
4460        &self,
4461        target_entry: &Entry,
4462        target_worktree: &Worktree,
4463        drag_state: &DraggedSelection,
4464        cx: &Context<Self>,
4465    ) -> Option<ProjectEntryId> {
4466        let target_parent_path = target_entry.path.parent();
4467
4468        // In case of single item drag, we do not highlight existing
4469        // directory which item belongs too
4470        if drag_state.items().count() == 1
4471            && drag_state.active_selection.worktree_id == target_worktree.id()
4472        {
4473            let active_entry_path = self
4474                .project
4475                .read(cx)
4476                .path_for_entry(drag_state.active_selection.entry_id, cx)?;
4477
4478            if let Some(active_parent_path) = active_entry_path.path.parent() {
4479                // Do not highlight active entry parent
4480                if active_parent_path == target_entry.path.as_ref() {
4481                    return None;
4482                }
4483
4484                // Do not highlight active entry sibling files
4485                if Some(active_parent_path) == target_parent_path && target_entry.is_file() {
4486                    return None;
4487                }
4488            }
4489        }
4490
4491        // Always highlight directory or parent directory if it's file
4492        if target_entry.is_dir() {
4493            Some(target_entry.id)
4494        } else {
4495            target_parent_path
4496                .and_then(|parent_path| target_worktree.entry_for_path(parent_path))
4497                .map(|parent_entry| parent_entry.id)
4498        }
4499    }
4500
4501    fn should_highlight_background_for_selection_drag(
4502        &self,
4503        drag_state: &DraggedSelection,
4504        last_root_id: ProjectEntryId,
4505        cx: &App,
4506    ) -> bool {
4507        // Always highlight for multiple entries
4508        if drag_state.items().count() > 1 {
4509            return true;
4510        }
4511
4512        // Since root will always have empty relative path
4513        if let Some(entry_path) = self
4514            .project
4515            .read(cx)
4516            .path_for_entry(drag_state.active_selection.entry_id, cx)
4517        {
4518            if let Some(parent_path) = entry_path.path.parent() {
4519                if !parent_path.is_empty() {
4520                    return true;
4521                }
4522            }
4523        }
4524
4525        // If parent is empty, check if different worktree
4526        if let Some(last_root_worktree_id) = self
4527            .project
4528            .read(cx)
4529            .worktree_id_for_entry(last_root_id, cx)
4530        {
4531            if drag_state.active_selection.worktree_id != last_root_worktree_id {
4532                return true;
4533            }
4534        }
4535
4536        false
4537    }
4538
4539    fn render_entry(
4540        &self,
4541        entry_id: ProjectEntryId,
4542        details: EntryDetails,
4543        window: &mut Window,
4544        cx: &mut Context<Self>,
4545    ) -> Stateful<Div> {
4546        const GROUP_NAME: &str = "project_entry";
4547
4548        let kind = details.kind;
4549        let is_sticky = details.sticky.is_some();
4550        let sticky_index = details.sticky.as_ref().map(|this| this.sticky_index);
4551        let settings = ProjectPanelSettings::get_global(cx);
4552        let show_editor = details.is_editing && !details.is_processing;
4553
4554        let selection = SelectedEntry {
4555            worktree_id: details.worktree_id,
4556            entry_id,
4557        };
4558
4559        let is_marked = self.marked_entries.contains(&selection);
4560        let is_active = self
4561            .state
4562            .selection
4563            .is_some_and(|selection| selection.entry_id == entry_id);
4564
4565        let file_name = details.filename.clone();
4566
4567        let mut icon = details.icon.clone();
4568        if settings.file_icons && show_editor && details.kind.is_file() {
4569            let filename = self.filename_editor.read(cx).text(cx);
4570            if filename.len() > 2 {
4571                icon = FileIcons::get_icon(Path::new(&filename), cx);
4572            }
4573        }
4574
4575        let filename_text_color = details.filename_text_color;
4576        let diagnostic_severity = details.diagnostic_severity;
4577        let item_colors = get_item_color(is_sticky, cx);
4578
4579        let canonical_path = details
4580            .canonical_path
4581            .as_ref()
4582            .map(|f| f.to_string_lossy().into_owned());
4583        let path_style = self.project.read(cx).path_style(cx);
4584        let path = details.path.clone();
4585        let path_for_external_paths = path.clone();
4586        let path_for_dragged_selection = path.clone();
4587
4588        let depth = details.depth;
4589        let worktree_id = details.worktree_id;
4590        let dragged_selection = DraggedSelection {
4591            active_selection: SelectedEntry {
4592                worktree_id: selection.worktree_id,
4593                entry_id: self.resolve_entry(selection.entry_id),
4594            },
4595            marked_selections: Arc::from(self.marked_entries.clone()),
4596        };
4597
4598        let bg_color = if is_marked {
4599            item_colors.marked
4600        } else {
4601            item_colors.default
4602        };
4603
4604        let bg_hover_color = if is_marked {
4605            item_colors.marked
4606        } else {
4607            item_colors.hover
4608        };
4609
4610        let validation_color_and_message = if show_editor {
4611            match self
4612                .state
4613                .edit_state
4614                .as_ref()
4615                .map_or(ValidationState::None, |e| e.validation_state.clone())
4616            {
4617                ValidationState::Error(msg) => Some((Color::Error.color(cx), msg)),
4618                ValidationState::Warning(msg) => Some((Color::Warning.color(cx), msg)),
4619                ValidationState::None => None,
4620            }
4621        } else {
4622            None
4623        };
4624
4625        let border_color =
4626            if !self.mouse_down && is_active && self.focus_handle.contains_focused(window, cx) {
4627                match validation_color_and_message {
4628                    Some((color, _)) => color,
4629                    None => item_colors.focused,
4630                }
4631            } else {
4632                bg_color
4633            };
4634
4635        let border_hover_color =
4636            if !self.mouse_down && is_active && self.focus_handle.contains_focused(window, cx) {
4637                match validation_color_and_message {
4638                    Some((color, _)) => color,
4639                    None => item_colors.focused,
4640                }
4641            } else {
4642                bg_hover_color
4643            };
4644
4645        let folded_directory_drag_target = self.folded_directory_drag_target;
4646        let is_highlighted = {
4647            if let Some(highlight_entry_id) =
4648                self.drag_target_entry
4649                    .as_ref()
4650                    .and_then(|drag_target| match drag_target {
4651                        DragTarget::Entry {
4652                            highlight_entry_id, ..
4653                        } => Some(*highlight_entry_id),
4654                        DragTarget::Background => self.state.last_worktree_root_id,
4655                    })
4656            {
4657                // Highlight if same entry or it's children
4658                if entry_id == highlight_entry_id {
4659                    true
4660                } else {
4661                    maybe!({
4662                        let worktree = self.project.read(cx).worktree_for_id(worktree_id, cx)?;
4663                        let highlight_entry = worktree.read(cx).entry_for_id(highlight_entry_id)?;
4664                        Some(path.starts_with(&highlight_entry.path))
4665                    })
4666                    .unwrap_or(false)
4667                }
4668            } else {
4669                false
4670            }
4671        };
4672
4673        let id: ElementId = if is_sticky {
4674            SharedString::from(format!("project_panel_sticky_item_{}", entry_id.to_usize())).into()
4675        } else {
4676            (entry_id.to_proto() as usize).into()
4677        };
4678
4679        div()
4680            .id(id.clone())
4681            .relative()
4682            .group(GROUP_NAME)
4683            .cursor_pointer()
4684            .rounded_none()
4685            .bg(bg_color)
4686            .border_1()
4687            .border_r_2()
4688            .border_color(border_color)
4689            .hover(|style| style.bg(bg_hover_color).border_color(border_hover_color))
4690            .when(is_sticky, |this| {
4691                this.block_mouse_except_scroll()
4692            })
4693            .when(!is_sticky, |this| {
4694                this
4695                .when(is_highlighted && folded_directory_drag_target.is_none(), |this| this.border_color(transparent_white()).bg(item_colors.drag_over))
4696                .when(settings.drag_and_drop, |this| this
4697                .on_drag_move::<ExternalPaths>(cx.listener(
4698                    move |this, event: &DragMoveEvent<ExternalPaths>, _, cx| {
4699                        let is_current_target = this.drag_target_entry.as_ref()
4700                             .and_then(|entry| match entry {
4701                                 DragTarget::Entry { entry_id: target_id, .. } => Some(*target_id),
4702                                 DragTarget::Background { .. } => None,
4703                             }) == Some(entry_id);
4704
4705                        if !event.bounds.contains(&event.event.position) {
4706                            // Entry responsible for setting drag target is also responsible to
4707                            // clear it up after drag is out of bounds
4708                            if is_current_target {
4709                                this.drag_target_entry = None;
4710                            }
4711                            return;
4712                        }
4713
4714                        if is_current_target {
4715                            return;
4716                        }
4717
4718                        this.marked_entries.clear();
4719
4720                        let Some((entry_id, highlight_entry_id)) = maybe!({
4721                            let target_worktree = this.project.read(cx).worktree_for_id(selection.worktree_id, cx)?.read(cx);
4722                            let target_entry = target_worktree.entry_for_path(&path_for_external_paths)?;
4723                            let highlight_entry_id = this.highlight_entry_for_external_drag(target_entry, target_worktree)?;
4724                            Some((target_entry.id, highlight_entry_id))
4725                        }) else {
4726                            return;
4727                        };
4728
4729                        this.drag_target_entry = Some(DragTarget::Entry {
4730                            entry_id,
4731                            highlight_entry_id,
4732                        });
4733
4734                    },
4735                ))
4736                .on_drop(cx.listener(
4737                    move |this, external_paths: &ExternalPaths, window, cx| {
4738                        this.drag_target_entry = None;
4739                        this.hover_scroll_task.take();
4740                        this.drop_external_files(external_paths.paths(), entry_id, window, cx);
4741                        cx.stop_propagation();
4742                    },
4743                ))
4744                .on_drag_move::<DraggedSelection>(cx.listener(
4745                    move |this, event: &DragMoveEvent<DraggedSelection>, window, cx| {
4746                        let is_current_target = this.drag_target_entry.as_ref()
4747                             .and_then(|entry| match entry {
4748                                 DragTarget::Entry { entry_id: target_id, .. } => Some(*target_id),
4749                                 DragTarget::Background { .. } => None,
4750                             }) == Some(entry_id);
4751
4752                        if !event.bounds.contains(&event.event.position) {
4753                            // Entry responsible for setting drag target is also responsible to
4754                            // clear it up after drag is out of bounds
4755                            if is_current_target {
4756                                this.drag_target_entry = None;
4757                            }
4758                            return;
4759                        }
4760
4761                        if is_current_target {
4762                            return;
4763                        }
4764
4765                        let drag_state = event.drag(cx);
4766
4767                        if drag_state.items().count() == 1 {
4768                            this.marked_entries.clear();
4769                            this.marked_entries.push(drag_state.active_selection);
4770                        }
4771
4772                        let Some((entry_id, highlight_entry_id)) = maybe!({
4773                            let target_worktree = this.project.read(cx).worktree_for_id(selection.worktree_id, cx)?.read(cx);
4774                            let target_entry = target_worktree.entry_for_path(&path_for_dragged_selection)?;
4775                            let highlight_entry_id = this.highlight_entry_for_selection_drag(target_entry, target_worktree, drag_state, cx)?;
4776                            Some((target_entry.id, highlight_entry_id))
4777                        }) else {
4778                            return;
4779                        };
4780
4781                        this.drag_target_entry = Some(DragTarget::Entry {
4782                            entry_id,
4783                            highlight_entry_id,
4784                        });
4785
4786                        this.hover_expand_task.take();
4787
4788                        if !kind.is_dir()
4789                            || this
4790                                .state
4791                                .expanded_dir_ids
4792                                .get(&details.worktree_id)
4793                                .is_some_and(|ids| ids.binary_search(&entry_id).is_ok())
4794                        {
4795                            return;
4796                        }
4797
4798                        let bounds = event.bounds;
4799                        this.hover_expand_task =
4800                            Some(cx.spawn_in(window, async move |this, cx| {
4801                                cx.background_executor()
4802                                    .timer(Duration::from_millis(500))
4803                                    .await;
4804                                this.update_in(cx, |this, window, cx| {
4805                                    this.hover_expand_task.take();
4806                                    if this.drag_target_entry.as_ref().and_then(|entry| match entry {
4807                                        DragTarget::Entry { entry_id: target_id, .. } => Some(*target_id),
4808                                        DragTarget::Background { .. } => None,
4809                                    }) == Some(entry_id)
4810                                        && bounds.contains(&window.mouse_position())
4811                                    {
4812                                        this.expand_entry(worktree_id, entry_id, cx);
4813                                        this.update_visible_entries(
4814                                            Some((worktree_id, entry_id)),
4815                                            false,
4816                                            false,
4817                                            window,
4818                                            cx,
4819                                        );
4820                                        cx.notify();
4821                                    }
4822                                })
4823                                .ok();
4824                            }));
4825                    },
4826                ))
4827                .on_drag(
4828                    dragged_selection,
4829                    {
4830                        let active_component = self.state.ancestors.get(&entry_id).and_then(|ancestors| ancestors.active_component(&details.filename));
4831                        move |selection, click_offset, _window, cx| {
4832                            let filename = active_component.as_ref().unwrap_or_else(|| &details.filename);
4833                            cx.new(|_| DraggedProjectEntryView {
4834                                icon: details.icon.clone(),
4835                                filename: filename.clone(),
4836                                click_offset,
4837                                selection: selection.active_selection,
4838                                selections: selection.marked_selections.clone(),
4839                            })
4840                        }
4841                    }
4842                )
4843                .on_drop(
4844                    cx.listener(move |this, selections: &DraggedSelection, window, cx| {
4845                        this.drag_target_entry = None;
4846                        this.hover_scroll_task.take();
4847                        this.hover_expand_task.take();
4848                        if folded_directory_drag_target.is_some() {
4849                            return;
4850                        }
4851                        this.drag_onto(selections, entry_id, kind.is_file(), window, cx);
4852                    }),
4853                ))
4854            })
4855            .on_mouse_down(
4856                MouseButton::Left,
4857                cx.listener(move |this, _, _, cx| {
4858                    this.mouse_down = true;
4859                    cx.propagate();
4860                }),
4861            )
4862            .on_click(
4863                cx.listener(move |project_panel, event: &gpui::ClickEvent, window, cx| {
4864                    if event.is_right_click() || event.first_focus()
4865                        || show_editor
4866                    {
4867                        return;
4868                    }
4869                    if event.standard_click() {
4870                        project_panel.mouse_down = false;
4871                    }
4872                    cx.stop_propagation();
4873
4874                    if let Some(selection) = project_panel.state.selection.filter(|_| event.modifiers().shift) {
4875                        let current_selection = project_panel.index_for_selection(selection);
4876                        let clicked_entry = SelectedEntry {
4877                            entry_id,
4878                            worktree_id,
4879                        };
4880                        let target_selection = project_panel.index_for_selection(clicked_entry);
4881                        if let Some(((_, _, source_index), (_, _, target_index))) =
4882                            current_selection.zip(target_selection)
4883                        {
4884                            let range_start = source_index.min(target_index);
4885                            let range_end = source_index.max(target_index) + 1;
4886                            let mut new_selections = Vec::new();
4887                            project_panel.for_each_visible_entry(
4888                                range_start..range_end,
4889                                window,
4890                                cx,
4891                                |entry_id, details, _, _| {
4892                                    new_selections.push(SelectedEntry {
4893                                        entry_id,
4894                                        worktree_id: details.worktree_id,
4895                                    });
4896                                },
4897                            );
4898
4899                            for selection in &new_selections {
4900                                if !project_panel.marked_entries.contains(selection) {
4901                                    project_panel.marked_entries.push(*selection);
4902                                }
4903                            }
4904
4905                            project_panel.state.selection = Some(clicked_entry);
4906                            if !project_panel.marked_entries.contains(&clicked_entry) {
4907                                project_panel.marked_entries.push(clicked_entry);
4908                            }
4909                        }
4910                    } else if event.modifiers().secondary() {
4911                        if event.click_count() > 1 {
4912                            project_panel.split_entry(entry_id, false, None, cx);
4913                        } else {
4914                            project_panel.state.selection = Some(selection);
4915                            if let Some(position) = project_panel.marked_entries.iter().position(|e| *e == selection) {
4916                                project_panel.marked_entries.remove(position);
4917                            } else {
4918                                project_panel.marked_entries.push(selection);
4919                            }
4920                        }
4921                    } else if kind.is_dir() {
4922                        project_panel.marked_entries.clear();
4923                        if is_sticky
4924                            && let Some((_, _, index)) = project_panel.index_for_entry(entry_id, worktree_id) {
4925                                project_panel.scroll_handle.scroll_to_item_strict_with_offset(index, ScrollStrategy::Top, sticky_index.unwrap_or(0));
4926                                cx.notify();
4927                                // move down by 1px so that clicked item
4928                                // don't count as sticky anymore
4929                                cx.on_next_frame(window, |_, window, cx| {
4930                                    cx.on_next_frame(window, |this, _, cx| {
4931                                        let mut offset = this.scroll_handle.offset();
4932                                        offset.y += px(1.);
4933                                        this.scroll_handle.set_offset(offset);
4934                                        cx.notify();
4935                                    });
4936                                });
4937                                return;
4938                            }
4939                        if event.modifiers().alt {
4940                            project_panel.toggle_expand_all(entry_id, window, cx);
4941                        } else {
4942                            project_panel.toggle_expanded(entry_id, window, cx);
4943                        }
4944                    } else {
4945                        let preview_tabs_enabled = PreviewTabsSettings::get_global(cx).enable_preview_from_project_panel;
4946                        let click_count = event.click_count();
4947                        let focus_opened_item = click_count > 1;
4948                        let allow_preview = preview_tabs_enabled && click_count == 1;
4949                        project_panel.open_entry(entry_id, focus_opened_item, allow_preview, cx);
4950                    }
4951                }),
4952            )
4953            .child(
4954                ListItem::new(id)
4955                    .indent_level(depth)
4956                    .indent_step_size(px(settings.indent_size))
4957                    .spacing(match settings.entry_spacing {
4958                        ProjectPanelEntrySpacing::Comfortable => ListItemSpacing::Dense,
4959                        ProjectPanelEntrySpacing::Standard => {
4960                            ListItemSpacing::ExtraDense
4961                        }
4962                    })
4963                    .selectable(false)
4964                    .when_some(canonical_path, |this, path| {
4965                        this.end_slot::<AnyElement>(
4966                            div()
4967                                .id("symlink_icon")
4968                                .pr_3()
4969                                .tooltip(move |_window, cx| {
4970                                    Tooltip::with_meta(
4971                                        path.to_string(),
4972                                        None,
4973                                        "Symbolic Link",
4974                                        cx,
4975                                    )
4976                                })
4977                                .child(
4978                                    Icon::new(IconName::ArrowUpRight)
4979                                        .size(IconSize::Indicator)
4980                                        .color(filename_text_color),
4981                                )
4982                                .into_any_element(),
4983                        )
4984                    })
4985                    .child(if let Some(icon) = &icon {
4986                        if let Some((_, decoration_color)) =
4987                            entry_diagnostic_aware_icon_decoration_and_color(diagnostic_severity)
4988                        {
4989                            let is_warning = diagnostic_severity
4990                                .map(|severity| matches!(severity, DiagnosticSeverity::WARNING))
4991                                .unwrap_or(false);
4992                            div().child(
4993                                DecoratedIcon::new(
4994                                    Icon::from_path(icon.clone()).color(Color::Muted),
4995                                    Some(
4996                                        IconDecoration::new(
4997                                            if kind.is_file() {
4998                                                if is_warning {
4999                                                    IconDecorationKind::Triangle
5000                                                } else {
5001                                                    IconDecorationKind::X
5002                                                }
5003                                            } else {
5004                                                IconDecorationKind::Dot
5005                                            },
5006                                            bg_color,
5007                                            cx,
5008                                        )
5009                                        .group_name(Some(GROUP_NAME.into()))
5010                                        .knockout_hover_color(bg_hover_color)
5011                                        .color(decoration_color.color(cx))
5012                                        .position(Point {
5013                                            x: px(-2.),
5014                                            y: px(-2.),
5015                                        }),
5016                                    ),
5017                                )
5018                                .into_any_element(),
5019                            )
5020                        } else {
5021                            h_flex().child(Icon::from_path(icon.to_string()).color(Color::Muted))
5022                        }
5023                    } else if let Some((icon_name, color)) =
5024                        entry_diagnostic_aware_icon_name_and_color(diagnostic_severity)
5025                    {
5026                        h_flex()
5027                            .size(IconSize::default().rems())
5028                            .child(Icon::new(icon_name).color(color).size(IconSize::Small))
5029                    } else {
5030                        h_flex()
5031                            .size(IconSize::default().rems())
5032                            .invisible()
5033                            .flex_none()
5034                    })
5035                    .child(
5036                        if let (Some(editor), true) = (Some(&self.filename_editor), show_editor) {
5037                            h_flex().h_6().w_full().child(editor.clone())
5038                        } else {
5039                            h_flex().h_6().map(|mut this| {
5040                                if let Some(folded_ancestors) = self.state.ancestors.get(&entry_id) {
5041                                    let components = Path::new(&file_name)
5042                                        .components()
5043                                        .map(|comp| comp.as_os_str().to_string_lossy().into_owned())
5044                                        .collect::<Vec<_>>();
5045                                    let active_index = folded_ancestors.active_index();
5046                                    let components_len = components.len();
5047                                    let delimiter = SharedString::new(path_style.primary_separator());
5048                                    for (index, component) in components.iter().enumerate() {
5049                                        if index != 0 {
5050                                                let delimiter_target_index = index - 1;
5051                                                let target_entry_id = folded_ancestors.ancestors.get(components_len - 1 - delimiter_target_index).cloned();
5052                                                this = this.child(
5053                                                    div()
5054                                                    .when(!is_sticky, |div| {
5055                                                        div
5056                                                            .when(settings.drag_and_drop, |div| div
5057                                                            .on_drop(cx.listener(move |this, selections: &DraggedSelection, window, cx| {
5058                                                            this.hover_scroll_task.take();
5059                                                            this.drag_target_entry = None;
5060                                                            this.folded_directory_drag_target = None;
5061                                                            if let Some(target_entry_id) = target_entry_id {
5062                                                                this.drag_onto(selections, target_entry_id, kind.is_file(), window, cx);
5063                                                            }
5064                                                        }))
5065                                                        .on_drag_move(cx.listener(
5066                                                            move |this, event: &DragMoveEvent<DraggedSelection>, _, _| {
5067                                                                if event.bounds.contains(&event.event.position) {
5068                                                                    this.folded_directory_drag_target = Some(
5069                                                                        FoldedDirectoryDragTarget {
5070                                                                            entry_id,
5071                                                                            index: delimiter_target_index,
5072                                                                            is_delimiter_target: true,
5073                                                                        }
5074                                                                    );
5075                                                                } else {
5076                                                                    let is_current_target = this.folded_directory_drag_target
5077                                                                        .is_some_and(|target|
5078                                                                            target.entry_id == entry_id &&
5079                                                                            target.index == delimiter_target_index &&
5080                                                                            target.is_delimiter_target
5081                                                                        );
5082                                                                    if is_current_target {
5083                                                                        this.folded_directory_drag_target = None;
5084                                                                    }
5085                                                                }
5086
5087                                                            },
5088                                                        )))
5089                                                    })
5090                                                    .child(
5091                                                        Label::new(delimiter.clone())
5092                                                            .single_line()
5093                                                            .color(filename_text_color)
5094                                                    )
5095                                                );
5096                                        }
5097                                        let id = SharedString::from(format!(
5098                                            "project_panel_path_component_{}_{index}",
5099                                            entry_id.to_usize()
5100                                        ));
5101                                        let label = div()
5102                                            .id(id)
5103                                            .when(!is_sticky,| div| {
5104                                                div
5105                                                .when(index != components_len - 1, |div|{
5106                                                    let target_entry_id = folded_ancestors.ancestors.get(components_len - 1 - index).cloned();
5107                                                    div
5108                                                    .when(settings.drag_and_drop, |div| div
5109                                                    .on_drag_move(cx.listener(
5110                                                        move |this, event: &DragMoveEvent<DraggedSelection>, _, _| {
5111                                                        if event.bounds.contains(&event.event.position) {
5112                                                                this.folded_directory_drag_target = Some(
5113                                                                    FoldedDirectoryDragTarget {
5114                                                                        entry_id,
5115                                                                        index,
5116                                                                        is_delimiter_target: false,
5117                                                                    }
5118                                                                );
5119                                                            } else {
5120                                                                let is_current_target = this.folded_directory_drag_target
5121                                                                    .as_ref()
5122                                                                    .is_some_and(|target|
5123                                                                        target.entry_id == entry_id &&
5124                                                                        target.index == index &&
5125                                                                        !target.is_delimiter_target
5126                                                                    );
5127                                                                if is_current_target {
5128                                                                    this.folded_directory_drag_target = None;
5129                                                                }
5130                                                            }
5131                                                        },
5132                                                    ))
5133                                                    .on_drop(cx.listener(move |this, selections: &DraggedSelection, window,cx| {
5134                                                        this.hover_scroll_task.take();
5135                                                        this.drag_target_entry = None;
5136                                                        this.folded_directory_drag_target = None;
5137                                                        if let Some(target_entry_id) = target_entry_id {
5138                                                            this.drag_onto(selections, target_entry_id, kind.is_file(), window, cx);
5139                                                        }
5140                                                    }))
5141                                                    .when(folded_directory_drag_target.is_some_and(|target|
5142                                                        target.entry_id == entry_id &&
5143                                                        target.index == index
5144                                                    ), |this| {
5145                                                        this.bg(item_colors.drag_over)
5146                                                    }))
5147                                                })
5148                                            })
5149                                            .on_mouse_down(
5150                                                MouseButton::Left,
5151                                                cx.listener(move |this, _, _, cx| {
5152                                                    if index != active_index
5153                                                        && let Some(folds) =
5154                                                            this.state.ancestors.get_mut(&entry_id)
5155                                                        {
5156                                                            folds.current_ancestor_depth =
5157                                                                components_len - 1 - index;
5158                                                            cx.notify();
5159                                                        }
5160                                                }),
5161                                            )
5162                                            .child(
5163                                                Label::new(component)
5164                                                    .single_line()
5165                                                    .color(filename_text_color)
5166                                                    .when(
5167                                                        index == active_index
5168                                                            && (is_active || is_marked),
5169                                                        |this| this.underline(),
5170                                                    ),
5171                                            );
5172
5173                                        this = this.child(label);
5174                                    }
5175
5176                                    this
5177                                } else {
5178                                    this.child(
5179                                        Label::new(file_name)
5180                                            .single_line()
5181                                            .color(filename_text_color),
5182                                    )
5183                                }
5184                            })
5185                        },
5186                    )
5187                    .on_secondary_mouse_down(cx.listener(
5188                        move |this, event: &MouseDownEvent, window, cx| {
5189                            // Stop propagation to prevent the catch-all context menu for the project
5190                            // panel from being deployed.
5191                            cx.stop_propagation();
5192                            // Some context menu actions apply to all marked entries. If the user
5193                            // right-clicks on an entry that is not marked, they may not realize the
5194                            // action applies to multiple entries. To avoid inadvertent changes, all
5195                            // entries are unmarked.
5196                            if !this.marked_entries.contains(&selection) {
5197                                this.marked_entries.clear();
5198                            }
5199                            this.deploy_context_menu(event.position, entry_id, window, cx);
5200                        },
5201                    ))
5202                    .overflow_x(),
5203            )
5204            .when_some(
5205                validation_color_and_message,
5206                |this, (color, message)| {
5207                    this
5208                    .relative()
5209                    .child(
5210                        deferred(
5211                            div()
5212                            .occlude()
5213                            .absolute()
5214                            .top_full()
5215                            .left(px(-1.)) // Used px over rem so that it doesn't change with font size
5216                            .right(px(-0.5))
5217                            .py_1()
5218                            .px_2()
5219                            .border_1()
5220                            .border_color(color)
5221                            .bg(cx.theme().colors().background)
5222                            .child(
5223                                Label::new(message)
5224                                .color(Color::from(color))
5225                                .size(LabelSize::Small)
5226                            )
5227                        )
5228                    )
5229                }
5230            )
5231    }
5232
5233    fn details_for_entry(
5234        &self,
5235        entry: &Entry,
5236        worktree_id: WorktreeId,
5237        root_name: &RelPath,
5238        entries_paths: &HashSet<Arc<RelPath>>,
5239        git_status: GitSummary,
5240        sticky: Option<StickyDetails>,
5241        _window: &mut Window,
5242        cx: &mut Context<Self>,
5243    ) -> EntryDetails {
5244        let (show_file_icons, show_folder_icons) = {
5245            let settings = ProjectPanelSettings::get_global(cx);
5246            (settings.file_icons, settings.folder_icons)
5247        };
5248
5249        let expanded_entry_ids = self
5250            .state
5251            .expanded_dir_ids
5252            .get(&worktree_id)
5253            .map(Vec::as_slice)
5254            .unwrap_or(&[]);
5255        let is_expanded = expanded_entry_ids.binary_search(&entry.id).is_ok();
5256
5257        let icon = match entry.kind {
5258            EntryKind::File => {
5259                if show_file_icons {
5260                    FileIcons::get_icon(entry.path.as_std_path(), cx)
5261                } else {
5262                    None
5263                }
5264            }
5265            _ => {
5266                if show_folder_icons {
5267                    FileIcons::get_folder_icon(is_expanded, entry.path.as_std_path(), cx)
5268                } else {
5269                    FileIcons::get_chevron_icon(is_expanded, cx)
5270                }
5271            }
5272        };
5273
5274        let path_style = self.project.read(cx).path_style(cx);
5275        let (depth, difference) =
5276            ProjectPanel::calculate_depth_and_difference(entry, entries_paths);
5277
5278        let filename = if difference > 1 {
5279            entry
5280                .path
5281                .last_n_components(difference)
5282                .map_or(String::new(), |suffix| {
5283                    suffix.display(path_style).to_string()
5284                })
5285        } else {
5286            entry
5287                .path
5288                .file_name()
5289                .map(|name| name.to_string())
5290                .unwrap_or_else(|| root_name.as_unix_str().to_string())
5291        };
5292
5293        let selection = SelectedEntry {
5294            worktree_id,
5295            entry_id: entry.id,
5296        };
5297        let is_marked = self.marked_entries.contains(&selection);
5298        let is_selected = self.state.selection == Some(selection);
5299
5300        let diagnostic_severity = self
5301            .diagnostics
5302            .get(&(worktree_id, entry.path.clone()))
5303            .cloned();
5304
5305        let filename_text_color =
5306            entry_git_aware_label_color(git_status, entry.is_ignored, is_marked);
5307
5308        let is_cut = self
5309            .clipboard
5310            .as_ref()
5311            .is_some_and(|e| e.is_cut() && e.items().contains(&selection));
5312
5313        EntryDetails {
5314            filename,
5315            icon,
5316            path: entry.path.clone(),
5317            depth,
5318            kind: entry.kind,
5319            is_ignored: entry.is_ignored,
5320            is_expanded,
5321            is_selected,
5322            is_marked,
5323            is_editing: false,
5324            is_processing: false,
5325            is_cut,
5326            sticky,
5327            filename_text_color,
5328            diagnostic_severity,
5329            git_status,
5330            is_private: entry.is_private,
5331            worktree_id,
5332            canonical_path: entry.canonical_path.clone(),
5333        }
5334    }
5335
5336    fn dispatch_context(&self, window: &Window, cx: &Context<Self>) -> KeyContext {
5337        let mut dispatch_context = KeyContext::new_with_defaults();
5338        dispatch_context.add("ProjectPanel");
5339        dispatch_context.add("menu");
5340
5341        let identifier = if self.filename_editor.focus_handle(cx).is_focused(window) {
5342            "editing"
5343        } else {
5344            "not_editing"
5345        };
5346
5347        dispatch_context.add(identifier);
5348        dispatch_context
5349    }
5350
5351    fn reveal_entry(
5352        &mut self,
5353        project: Entity<Project>,
5354        entry_id: ProjectEntryId,
5355        skip_ignored: bool,
5356        window: &mut Window,
5357        cx: &mut Context<Self>,
5358    ) -> Result<()> {
5359        let worktree = project
5360            .read(cx)
5361            .worktree_for_entry(entry_id, cx)
5362            .context("can't reveal a non-existent entry in the project panel")?;
5363        let worktree = worktree.read(cx);
5364        if skip_ignored
5365            && worktree
5366                .entry_for_id(entry_id)
5367                .is_none_or(|entry| entry.is_ignored && !entry.is_always_included)
5368        {
5369            anyhow::bail!("can't reveal an ignored entry in the project panel");
5370        }
5371        let is_active_item_file_diff_view = self
5372            .workspace
5373            .upgrade()
5374            .and_then(|ws| ws.read(cx).active_item(cx))
5375            .map(|item| item.act_as_type(TypeId::of::<FileDiffView>(), cx).is_some())
5376            .unwrap_or(false);
5377        if is_active_item_file_diff_view {
5378            return Ok(());
5379        }
5380
5381        let worktree_id = worktree.id();
5382        self.expand_entry(worktree_id, entry_id, cx);
5383        self.update_visible_entries(Some((worktree_id, entry_id)), false, true, window, cx);
5384        self.marked_entries.clear();
5385        self.marked_entries.push(SelectedEntry {
5386            worktree_id,
5387            entry_id,
5388        });
5389        cx.notify();
5390        Ok(())
5391    }
5392
5393    fn find_active_indent_guide(
5394        &self,
5395        indent_guides: &[IndentGuideLayout],
5396        cx: &App,
5397    ) -> Option<usize> {
5398        let (worktree, entry) = self.selected_entry(cx)?;
5399
5400        // Find the parent entry of the indent guide, this will either be the
5401        // expanded folder we have selected, or the parent of the currently
5402        // selected file/collapsed directory
5403        let mut entry = entry;
5404        loop {
5405            let is_expanded_dir = entry.is_dir()
5406                && self
5407                    .state
5408                    .expanded_dir_ids
5409                    .get(&worktree.id())
5410                    .map(|ids| ids.binary_search(&entry.id).is_ok())
5411                    .unwrap_or(false);
5412            if is_expanded_dir {
5413                break;
5414            }
5415            entry = worktree.entry_for_path(&entry.path.parent()?)?;
5416        }
5417
5418        let (active_indent_range, depth) = {
5419            let (worktree_ix, child_offset, ix) = self.index_for_entry(entry.id, worktree.id())?;
5420            let child_paths = &self.state.visible_entries[worktree_ix].entries;
5421            let mut child_count = 0;
5422            let depth = entry.path.ancestors().count();
5423            while let Some(entry) = child_paths.get(child_offset + child_count + 1) {
5424                if entry.path.ancestors().count() <= depth {
5425                    break;
5426                }
5427                child_count += 1;
5428            }
5429
5430            let start = ix + 1;
5431            let end = start + child_count;
5432
5433            let visible_worktree = &self.state.visible_entries[worktree_ix];
5434            let visible_worktree_entries = visible_worktree.index.get_or_init(|| {
5435                visible_worktree
5436                    .entries
5437                    .iter()
5438                    .map(|e| e.path.clone())
5439                    .collect()
5440            });
5441
5442            // Calculate the actual depth of the entry, taking into account that directories can be auto-folded.
5443            let (depth, _) = Self::calculate_depth_and_difference(entry, visible_worktree_entries);
5444            (start..end, depth)
5445        };
5446
5447        let candidates = indent_guides
5448            .iter()
5449            .enumerate()
5450            .filter(|(_, indent_guide)| indent_guide.offset.x == depth);
5451
5452        for (i, indent) in candidates {
5453            // Find matches that are either an exact match, partially on screen, or inside the enclosing indent
5454            if active_indent_range.start <= indent.offset.y + indent.length
5455                && indent.offset.y <= active_indent_range.end
5456            {
5457                return Some(i);
5458            }
5459        }
5460        None
5461    }
5462
5463    fn render_sticky_entries(
5464        &self,
5465        child: StickyProjectPanelCandidate,
5466        window: &mut Window,
5467        cx: &mut Context<Self>,
5468    ) -> SmallVec<[AnyElement; 8]> {
5469        let project = self.project.read(cx);
5470
5471        let Some((worktree_id, entry_ref)) = self.entry_at_index(child.index) else {
5472            return SmallVec::new();
5473        };
5474
5475        let Some(visible) = self
5476            .state
5477            .visible_entries
5478            .iter()
5479            .find(|worktree| worktree.worktree_id == worktree_id)
5480        else {
5481            return SmallVec::new();
5482        };
5483
5484        let Some(worktree) = project.worktree_for_id(worktree_id, cx) else {
5485            return SmallVec::new();
5486        };
5487        let worktree = worktree.read(cx).snapshot();
5488
5489        let paths = visible
5490            .index
5491            .get_or_init(|| visible.entries.iter().map(|e| e.path.clone()).collect());
5492
5493        let mut sticky_parents = Vec::new();
5494        let mut current_path = entry_ref.path.clone();
5495
5496        'outer: loop {
5497            if let Some(parent_path) = current_path.parent() {
5498                for ancestor_path in parent_path.ancestors() {
5499                    if paths.contains(ancestor_path)
5500                        && let Some(parent_entry) = worktree.entry_for_path(ancestor_path)
5501                    {
5502                        sticky_parents.push(parent_entry.clone());
5503                        current_path = parent_entry.path.clone();
5504                        continue 'outer;
5505                    }
5506                }
5507            }
5508            break 'outer;
5509        }
5510
5511        if sticky_parents.is_empty() {
5512            return SmallVec::new();
5513        }
5514
5515        sticky_parents.reverse();
5516
5517        let panel_settings = ProjectPanelSettings::get_global(cx);
5518        let git_status_enabled = panel_settings.git_status;
5519        let root_name = worktree.root_name();
5520
5521        let git_summaries_by_id = if git_status_enabled {
5522            visible
5523                .entries
5524                .iter()
5525                .map(|e| (e.id, e.git_summary))
5526                .collect::<HashMap<_, _>>()
5527        } else {
5528            Default::default()
5529        };
5530
5531        // already checked if non empty above
5532        let last_item_index = sticky_parents.len() - 1;
5533        sticky_parents
5534            .iter()
5535            .enumerate()
5536            .map(|(index, entry)| {
5537                let git_status = git_summaries_by_id
5538                    .get(&entry.id)
5539                    .copied()
5540                    .unwrap_or_default();
5541                let sticky_details = Some(StickyDetails {
5542                    sticky_index: index,
5543                });
5544                let details = self.details_for_entry(
5545                    entry,
5546                    worktree_id,
5547                    root_name,
5548                    paths,
5549                    git_status,
5550                    sticky_details,
5551                    window,
5552                    cx,
5553                );
5554                self.render_entry(entry.id, details, window, cx)
5555                    .when(index == last_item_index, |this| {
5556                        let shadow_color_top = hsla(0.0, 0.0, 0.0, 0.1);
5557                        let shadow_color_bottom = hsla(0.0, 0.0, 0.0, 0.);
5558                        let sticky_shadow = div()
5559                            .absolute()
5560                            .left_0()
5561                            .bottom_neg_1p5()
5562                            .h_1p5()
5563                            .w_full()
5564                            .bg(linear_gradient(
5565                                0.,
5566                                linear_color_stop(shadow_color_top, 1.),
5567                                linear_color_stop(shadow_color_bottom, 0.),
5568                            ));
5569                        this.child(sticky_shadow)
5570                    })
5571                    .into_any()
5572            })
5573            .collect()
5574    }
5575}
5576
5577#[derive(Clone)]
5578struct StickyProjectPanelCandidate {
5579    index: usize,
5580    depth: usize,
5581}
5582
5583impl StickyCandidate for StickyProjectPanelCandidate {
5584    fn depth(&self) -> usize {
5585        self.depth
5586    }
5587}
5588
5589fn item_width_estimate(depth: usize, item_text_chars: usize, is_symlink: bool) -> usize {
5590    const ICON_SIZE_FACTOR: usize = 2;
5591    let mut item_width = depth * ICON_SIZE_FACTOR + item_text_chars;
5592    if is_symlink {
5593        item_width += ICON_SIZE_FACTOR;
5594    }
5595    item_width
5596}
5597
5598impl Render for ProjectPanel {
5599    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
5600        let has_worktree = !self.state.visible_entries.is_empty();
5601        let project = self.project.read(cx);
5602        let panel_settings = ProjectPanelSettings::get_global(cx);
5603        let indent_size = panel_settings.indent_size;
5604        let show_indent_guides = panel_settings.indent_guides.show == ShowIndentGuides::Always;
5605        let show_sticky_entries = {
5606            if panel_settings.sticky_scroll {
5607                let is_scrollable = self.scroll_handle.is_scrollable();
5608                let is_scrolled = self.scroll_handle.offset().y < px(0.);
5609                is_scrollable && is_scrolled
5610            } else {
5611                false
5612            }
5613        };
5614
5615        let is_local = project.is_local();
5616
5617        if has_worktree {
5618            let item_count = self
5619                .state
5620                .visible_entries
5621                .iter()
5622                .map(|worktree| worktree.entries.len())
5623                .sum();
5624
5625            fn handle_drag_move<T: 'static>(
5626                this: &mut ProjectPanel,
5627                e: &DragMoveEvent<T>,
5628                window: &mut Window,
5629                cx: &mut Context<ProjectPanel>,
5630            ) {
5631                if let Some(previous_position) = this.previous_drag_position {
5632                    // Refresh cursor only when an actual drag happens,
5633                    // because modifiers are not updated when the cursor is not moved.
5634                    if e.event.position != previous_position {
5635                        this.refresh_drag_cursor_style(&e.event.modifiers, window, cx);
5636                    }
5637                }
5638                this.previous_drag_position = Some(e.event.position);
5639
5640                if !e.bounds.contains(&e.event.position) {
5641                    this.drag_target_entry = None;
5642                    return;
5643                }
5644                this.hover_scroll_task.take();
5645                let panel_height = e.bounds.size.height;
5646                if panel_height <= px(0.) {
5647                    return;
5648                }
5649
5650                let event_offset = e.event.position.y - e.bounds.origin.y;
5651                // How far along in the project panel is our cursor? (0. is the top of a list, 1. is the bottom)
5652                let hovered_region_offset = event_offset / panel_height;
5653
5654                // We want the scrolling to be a bit faster when the cursor is closer to the edge of a list.
5655                // These pixels offsets were picked arbitrarily.
5656                let vertical_scroll_offset = if hovered_region_offset <= 0.05 {
5657                    8.
5658                } else if hovered_region_offset <= 0.15 {
5659                    5.
5660                } else if hovered_region_offset >= 0.95 {
5661                    -8.
5662                } else if hovered_region_offset >= 0.85 {
5663                    -5.
5664                } else {
5665                    return;
5666                };
5667                let adjustment = point(px(0.), px(vertical_scroll_offset));
5668                this.hover_scroll_task = Some(cx.spawn_in(window, async move |this, cx| {
5669                    loop {
5670                        let should_stop_scrolling = this
5671                            .update(cx, |this, cx| {
5672                                this.hover_scroll_task.as_ref()?;
5673                                let handle = this.scroll_handle.0.borrow_mut();
5674                                let offset = handle.base_handle.offset();
5675
5676                                handle.base_handle.set_offset(offset + adjustment);
5677                                cx.notify();
5678                                Some(())
5679                            })
5680                            .ok()
5681                            .flatten()
5682                            .is_some();
5683                        if should_stop_scrolling {
5684                            return;
5685                        }
5686                        cx.background_executor()
5687                            .timer(Duration::from_millis(16))
5688                            .await;
5689                    }
5690                }));
5691            }
5692            h_flex()
5693                .id("project-panel")
5694                .group("project-panel")
5695                .when(panel_settings.drag_and_drop, |this| {
5696                    this.on_drag_move(cx.listener(handle_drag_move::<ExternalPaths>))
5697                        .on_drag_move(cx.listener(handle_drag_move::<DraggedSelection>))
5698                })
5699                .size_full()
5700                .relative()
5701                .on_modifiers_changed(cx.listener(
5702                    |this, event: &ModifiersChangedEvent, window, cx| {
5703                        this.refresh_drag_cursor_style(&event.modifiers, window, cx);
5704                    },
5705                ))
5706                .key_context(self.dispatch_context(window, cx))
5707                .on_action(cx.listener(Self::scroll_up))
5708                .on_action(cx.listener(Self::scroll_down))
5709                .on_action(cx.listener(Self::scroll_cursor_center))
5710                .on_action(cx.listener(Self::scroll_cursor_top))
5711                .on_action(cx.listener(Self::scroll_cursor_bottom))
5712                .on_action(cx.listener(Self::select_next))
5713                .on_action(cx.listener(Self::select_previous))
5714                .on_action(cx.listener(Self::select_first))
5715                .on_action(cx.listener(Self::select_last))
5716                .on_action(cx.listener(Self::select_parent))
5717                .on_action(cx.listener(Self::select_next_git_entry))
5718                .on_action(cx.listener(Self::select_prev_git_entry))
5719                .on_action(cx.listener(Self::select_next_diagnostic))
5720                .on_action(cx.listener(Self::select_prev_diagnostic))
5721                .on_action(cx.listener(Self::select_next_directory))
5722                .on_action(cx.listener(Self::select_prev_directory))
5723                .on_action(cx.listener(Self::expand_selected_entry))
5724                .on_action(cx.listener(Self::collapse_selected_entry))
5725                .on_action(cx.listener(Self::collapse_all_entries))
5726                .on_action(cx.listener(Self::open))
5727                .on_action(cx.listener(Self::open_permanent))
5728                .on_action(cx.listener(Self::open_split_vertical))
5729                .on_action(cx.listener(Self::open_split_horizontal))
5730                .on_action(cx.listener(Self::confirm))
5731                .on_action(cx.listener(Self::cancel))
5732                .on_action(cx.listener(Self::copy_path))
5733                .on_action(cx.listener(Self::copy_relative_path))
5734                .on_action(cx.listener(Self::new_search_in_directory))
5735                .on_action(cx.listener(Self::unfold_directory))
5736                .on_action(cx.listener(Self::fold_directory))
5737                .on_action(cx.listener(Self::remove_from_project))
5738                .on_action(cx.listener(Self::compare_marked_files))
5739                .when(!project.is_read_only(cx), |el| {
5740                    el.on_action(cx.listener(Self::new_file))
5741                        .on_action(cx.listener(Self::new_directory))
5742                        .on_action(cx.listener(Self::rename))
5743                        .on_action(cx.listener(Self::delete))
5744                        .on_action(cx.listener(Self::cut))
5745                        .on_action(cx.listener(Self::copy))
5746                        .on_action(cx.listener(Self::paste))
5747                        .on_action(cx.listener(Self::duplicate))
5748                        .on_action(cx.listener(Self::restore_file))
5749                        .when(!project.is_remote(), |el| {
5750                            el.on_action(cx.listener(Self::trash))
5751                        })
5752                })
5753                .when(project.is_local(), |el| {
5754                    el.on_action(cx.listener(Self::reveal_in_finder))
5755                        .on_action(cx.listener(Self::open_system))
5756                        .on_action(cx.listener(Self::open_in_terminal))
5757                })
5758                .when(project.is_via_remote_server(), |el| {
5759                    el.on_action(cx.listener(Self::open_in_terminal))
5760                })
5761                .track_focus(&self.focus_handle(cx))
5762                .child(
5763                    v_flex()
5764                        .child(
5765                            uniform_list("entries", item_count, {
5766                                cx.processor(|this, range: Range<usize>, window, cx| {
5767                                    this.rendered_entries_len = range.end - range.start;
5768                                    let mut items = Vec::with_capacity(this.rendered_entries_len);
5769                                    this.for_each_visible_entry(
5770                                        range,
5771                                        window,
5772                                        cx,
5773                                        |id, details, window, cx| {
5774                                            items.push(this.render_entry(id, details, window, cx));
5775                                        },
5776                                    );
5777                                    items
5778                                })
5779                            })
5780                            .when(show_indent_guides, |list| {
5781                                list.with_decoration(
5782                                    ui::indent_guides(
5783                                        px(indent_size),
5784                                        IndentGuideColors::panel(cx),
5785                                    )
5786                                    .with_compute_indents_fn(
5787                                        cx.entity(),
5788                                        |this, range, window, cx| {
5789                                            let mut items =
5790                                                SmallVec::with_capacity(range.end - range.start);
5791                                            this.iter_visible_entries(
5792                                                range,
5793                                                window,
5794                                                cx,
5795                                                |entry, _, entries, _, _| {
5796                                                    let (depth, _) =
5797                                                        Self::calculate_depth_and_difference(
5798                                                            entry, entries,
5799                                                        );
5800                                                    items.push(depth);
5801                                                },
5802                                            );
5803                                            items
5804                                        },
5805                                    )
5806                                    .on_click(cx.listener(
5807                                        |this,
5808                                         active_indent_guide: &IndentGuideLayout,
5809                                         window,
5810                                         cx| {
5811                                            if window.modifiers().secondary() {
5812                                                let ix = active_indent_guide.offset.y;
5813                                                let Some((target_entry, worktree)) = maybe!({
5814                                                    let (worktree_id, entry) =
5815                                                        this.entry_at_index(ix)?;
5816                                                    let worktree = this
5817                                                        .project
5818                                                        .read(cx)
5819                                                        .worktree_for_id(worktree_id, cx)?;
5820                                                    let target_entry = worktree
5821                                                        .read(cx)
5822                                                        .entry_for_path(&entry.path.parent()?)?;
5823                                                    Some((target_entry, worktree))
5824                                                }) else {
5825                                                    return;
5826                                                };
5827
5828                                                this.collapse_entry(
5829                                                    target_entry.clone(),
5830                                                    worktree,
5831                                                    window,
5832                                                    cx,
5833                                                );
5834                                            }
5835                                        },
5836                                    ))
5837                                    .with_render_fn(
5838                                        cx.entity(),
5839                                        move |this, params, _, cx| {
5840                                            const LEFT_OFFSET: Pixels = px(14.);
5841                                            const PADDING_Y: Pixels = px(4.);
5842                                            const HITBOX_OVERDRAW: Pixels = px(3.);
5843
5844                                            let active_indent_guide_index = this
5845                                                .find_active_indent_guide(
5846                                                    &params.indent_guides,
5847                                                    cx,
5848                                                );
5849
5850                                            let indent_size = params.indent_size;
5851                                            let item_height = params.item_height;
5852
5853                                            params
5854                                                .indent_guides
5855                                                .into_iter()
5856                                                .enumerate()
5857                                                .map(|(idx, layout)| {
5858                                                    let offset = if layout.continues_offscreen {
5859                                                        px(0.)
5860                                                    } else {
5861                                                        PADDING_Y
5862                                                    };
5863                                                    let bounds = Bounds::new(
5864                                                        point(
5865                                                            layout.offset.x * indent_size
5866                                                                + LEFT_OFFSET,
5867                                                            layout.offset.y * item_height + offset,
5868                                                        ),
5869                                                        size(
5870                                                            px(1.),
5871                                                            layout.length * item_height
5872                                                                - offset * 2.,
5873                                                        ),
5874                                                    );
5875                                                    ui::RenderedIndentGuide {
5876                                                        bounds,
5877                                                        layout,
5878                                                        is_active: Some(idx)
5879                                                            == active_indent_guide_index,
5880                                                        hitbox: Some(Bounds::new(
5881                                                            point(
5882                                                                bounds.origin.x - HITBOX_OVERDRAW,
5883                                                                bounds.origin.y,
5884                                                            ),
5885                                                            size(
5886                                                                bounds.size.width
5887                                                                    + HITBOX_OVERDRAW * 2.,
5888                                                                bounds.size.height,
5889                                                            ),
5890                                                        )),
5891                                                    }
5892                                                })
5893                                                .collect()
5894                                        },
5895                                    ),
5896                                )
5897                            })
5898                            .when(show_sticky_entries, |list| {
5899                                let sticky_items = ui::sticky_items(
5900                                    cx.entity(),
5901                                    |this, range, window, cx| {
5902                                        let mut items =
5903                                            SmallVec::with_capacity(range.end - range.start);
5904                                        this.iter_visible_entries(
5905                                            range,
5906                                            window,
5907                                            cx,
5908                                            |entry, index, entries, _, _| {
5909                                                let (depth, _) =
5910                                                    Self::calculate_depth_and_difference(
5911                                                        entry, entries,
5912                                                    );
5913                                                let candidate =
5914                                                    StickyProjectPanelCandidate { index, depth };
5915                                                items.push(candidate);
5916                                            },
5917                                        );
5918                                        items
5919                                    },
5920                                    |this, marker_entry, window, cx| {
5921                                        let sticky_entries =
5922                                            this.render_sticky_entries(marker_entry, window, cx);
5923                                        this.sticky_items_count = sticky_entries.len();
5924                                        sticky_entries
5925                                    },
5926                                );
5927                                list.with_decoration(if show_indent_guides {
5928                                    sticky_items.with_decoration(
5929                                        ui::indent_guides(
5930                                            px(indent_size),
5931                                            IndentGuideColors::panel(cx),
5932                                        )
5933                                        .with_render_fn(
5934                                            cx.entity(),
5935                                            move |_, params, _, _| {
5936                                                const LEFT_OFFSET: Pixels = px(14.);
5937
5938                                                let indent_size = params.indent_size;
5939                                                let item_height = params.item_height;
5940
5941                                                params
5942                                                    .indent_guides
5943                                                    .into_iter()
5944                                                    .map(|layout| {
5945                                                        let bounds = Bounds::new(
5946                                                            point(
5947                                                                layout.offset.x * indent_size
5948                                                                    + LEFT_OFFSET,
5949                                                                layout.offset.y * item_height,
5950                                                            ),
5951                                                            size(
5952                                                                px(1.),
5953                                                                layout.length * item_height,
5954                                                            ),
5955                                                        );
5956                                                        ui::RenderedIndentGuide {
5957                                                            bounds,
5958                                                            layout,
5959                                                            is_active: false,
5960                                                            hitbox: None,
5961                                                        }
5962                                                    })
5963                                                    .collect()
5964                                            },
5965                                        ),
5966                                    )
5967                                } else {
5968                                    sticky_items
5969                                })
5970                            })
5971                            .with_sizing_behavior(ListSizingBehavior::Infer)
5972                            .with_horizontal_sizing_behavior(
5973                                ListHorizontalSizingBehavior::Unconstrained,
5974                            )
5975                            .with_width_from_item(self.state.max_width_item_index)
5976                            .track_scroll(&self.scroll_handle),
5977                        )
5978                        .child(
5979                            div()
5980                                .id("project-panel-blank-area")
5981                                .block_mouse_except_scroll()
5982                                .flex_grow()
5983                                .when(
5984                                    self.drag_target_entry.as_ref().is_some_and(
5985                                        |entry| match entry {
5986                                            DragTarget::Background => true,
5987                                            DragTarget::Entry {
5988                                                highlight_entry_id, ..
5989                                            } => self.state.last_worktree_root_id.is_some_and(
5990                                                |root_id| *highlight_entry_id == root_id,
5991                                            ),
5992                                        },
5993                                    ),
5994                                    |div| div.bg(cx.theme().colors().drop_target_background),
5995                                )
5996                                .on_drag_move::<ExternalPaths>(cx.listener(
5997                                    move |this, event: &DragMoveEvent<ExternalPaths>, _, _| {
5998                                        let Some(_last_root_id) = this.state.last_worktree_root_id
5999                                        else {
6000                                            return;
6001                                        };
6002                                        if event.bounds.contains(&event.event.position) {
6003                                            this.drag_target_entry = Some(DragTarget::Background);
6004                                        } else {
6005                                            if this.drag_target_entry.as_ref().is_some_and(|e| {
6006                                                matches!(e, DragTarget::Background)
6007                                            }) {
6008                                                this.drag_target_entry = None;
6009                                            }
6010                                        }
6011                                    },
6012                                ))
6013                                .on_drag_move::<DraggedSelection>(cx.listener(
6014                                    move |this, event: &DragMoveEvent<DraggedSelection>, _, cx| {
6015                                        let Some(last_root_id) = this.state.last_worktree_root_id
6016                                        else {
6017                                            return;
6018                                        };
6019                                        if event.bounds.contains(&event.event.position) {
6020                                            let drag_state = event.drag(cx);
6021                                            if this.should_highlight_background_for_selection_drag(
6022                                                &drag_state,
6023                                                last_root_id,
6024                                                cx,
6025                                            ) {
6026                                                this.drag_target_entry =
6027                                                    Some(DragTarget::Background);
6028                                            }
6029                                        } else {
6030                                            if this.drag_target_entry.as_ref().is_some_and(|e| {
6031                                                matches!(e, DragTarget::Background)
6032                                            }) {
6033                                                this.drag_target_entry = None;
6034                                            }
6035                                        }
6036                                    },
6037                                ))
6038                                .on_drop(cx.listener(
6039                                    move |this, external_paths: &ExternalPaths, window, cx| {
6040                                        this.drag_target_entry = None;
6041                                        this.hover_scroll_task.take();
6042                                        if let Some(entry_id) = this.state.last_worktree_root_id {
6043                                            this.drop_external_files(
6044                                                external_paths.paths(),
6045                                                entry_id,
6046                                                window,
6047                                                cx,
6048                                            );
6049                                        }
6050                                        cx.stop_propagation();
6051                                    },
6052                                ))
6053                                .on_drop(cx.listener(
6054                                    move |this, selections: &DraggedSelection, window, cx| {
6055                                        this.drag_target_entry = None;
6056                                        this.hover_scroll_task.take();
6057                                        if let Some(entry_id) = this.state.last_worktree_root_id {
6058                                            this.drag_onto(selections, entry_id, false, window, cx);
6059                                        }
6060                                        cx.stop_propagation();
6061                                    },
6062                                ))
6063                                .on_click(cx.listener(|this, event, window, cx| {
6064                                    if matches!(event, gpui::ClickEvent::Keyboard(_)) {
6065                                        return;
6066                                    }
6067                                    cx.stop_propagation();
6068                                    this.state.selection = None;
6069                                    this.marked_entries.clear();
6070                                    this.focus_handle(cx).focus(window, cx);
6071                                }))
6072                                .on_mouse_down(
6073                                    MouseButton::Right,
6074                                    cx.listener(move |this, event: &MouseDownEvent, window, cx| {
6075                                        // When deploying the context menu anywhere below the last project entry,
6076                                        // act as if the user clicked the root of the last worktree.
6077                                        if let Some(entry_id) = this.state.last_worktree_root_id {
6078                                            this.deploy_context_menu(
6079                                                event.position,
6080                                                entry_id,
6081                                                window,
6082                                                cx,
6083                                            );
6084                                        }
6085                                    }),
6086                                )
6087                                .when(!project.is_read_only(cx), |el| {
6088                                    el.on_click(cx.listener(
6089                                        |this, event: &gpui::ClickEvent, window, cx| {
6090                                            if event.click_count() > 1
6091                                                && let Some(entry_id) =
6092                                                    this.state.last_worktree_root_id
6093                                            {
6094                                                let project = this.project.read(cx);
6095
6096                                                let worktree_id = if let Some(worktree) =
6097                                                    project.worktree_for_entry(entry_id, cx)
6098                                                {
6099                                                    worktree.read(cx).id()
6100                                                } else {
6101                                                    return;
6102                                                };
6103
6104                                                this.state.selection = Some(SelectedEntry {
6105                                                    worktree_id,
6106                                                    entry_id,
6107                                                });
6108
6109                                                this.new_file(&NewFile, window, cx);
6110                                            }
6111                                        },
6112                                    ))
6113                                }),
6114                        )
6115                        .size_full(),
6116                )
6117                .custom_scrollbars(
6118                    Scrollbars::for_settings::<ProjectPanelSettings>()
6119                        .tracked_scroll_handle(&self.scroll_handle)
6120                        .with_track_along(
6121                            ScrollAxes::Horizontal,
6122                            cx.theme().colors().panel_background,
6123                        )
6124                        .notify_content(),
6125                    window,
6126                    cx,
6127                )
6128                .children(self.context_menu.as_ref().map(|(menu, position, _)| {
6129                    deferred(
6130                        anchored()
6131                            .position(*position)
6132                            .anchor(gpui::Corner::TopLeft)
6133                            .child(menu.clone()),
6134                    )
6135                    .with_priority(3)
6136                }))
6137        } else {
6138            let focus_handle = self.focus_handle(cx);
6139
6140            v_flex()
6141                .id("empty-project_panel")
6142                .p_4()
6143                .size_full()
6144                .items_center()
6145                .justify_center()
6146                .gap_1()
6147                .track_focus(&self.focus_handle(cx))
6148                .child(
6149                    Button::new("open_project", "Open Project")
6150                        .full_width()
6151                        .key_binding(KeyBinding::for_action_in(
6152                            &workspace::Open,
6153                            &focus_handle,
6154                            cx,
6155                        ))
6156                        .on_click(cx.listener(|this, _, window, cx| {
6157                            this.workspace
6158                                .update(cx, |_, cx| {
6159                                    window.dispatch_action(workspace::Open.boxed_clone(), cx);
6160                                })
6161                                .log_err();
6162                        })),
6163                )
6164                .child(
6165                    h_flex()
6166                        .w_1_2()
6167                        .gap_2()
6168                        .child(Divider::horizontal())
6169                        .child(Label::new("or").size(LabelSize::XSmall).color(Color::Muted))
6170                        .child(Divider::horizontal()),
6171                )
6172                .child(
6173                    Button::new("clone_repo", "Clone Repository")
6174                        .full_width()
6175                        .on_click(cx.listener(|this, _, window, cx| {
6176                            this.workspace
6177                                .update(cx, |_, cx| {
6178                                    window.dispatch_action(git::Clone.boxed_clone(), cx);
6179                                })
6180                                .log_err();
6181                        })),
6182                )
6183                .when(is_local, |div| {
6184                    div.when(panel_settings.drag_and_drop, |div| {
6185                        div.drag_over::<ExternalPaths>(|style, _, _, cx| {
6186                            style.bg(cx.theme().colors().drop_target_background)
6187                        })
6188                        .on_drop(cx.listener(
6189                            move |this, external_paths: &ExternalPaths, window, cx| {
6190                                this.drag_target_entry = None;
6191                                this.hover_scroll_task.take();
6192                                if let Some(task) = this
6193                                    .workspace
6194                                    .update(cx, |workspace, cx| {
6195                                        workspace.open_workspace_for_paths(
6196                                            true,
6197                                            external_paths.paths().to_owned(),
6198                                            window,
6199                                            cx,
6200                                        )
6201                                    })
6202                                    .log_err()
6203                                {
6204                                    task.detach_and_log_err(cx);
6205                                }
6206                                cx.stop_propagation();
6207                            },
6208                        ))
6209                    })
6210                })
6211        }
6212    }
6213}
6214
6215impl Render for DraggedProjectEntryView {
6216    fn render(&mut self, _: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
6217        let ui_font = ThemeSettings::get_global(cx).ui_font.clone();
6218        h_flex()
6219            .font(ui_font)
6220            .pl(self.click_offset.x + px(12.))
6221            .pt(self.click_offset.y + px(12.))
6222            .child(
6223                div()
6224                    .flex()
6225                    .gap_1()
6226                    .items_center()
6227                    .py_1()
6228                    .px_2()
6229                    .rounded_lg()
6230                    .bg(cx.theme().colors().background)
6231                    .map(|this| {
6232                        if self.selections.len() > 1 && self.selections.contains(&self.selection) {
6233                            this.child(Label::new(format!("{} entries", self.selections.len())))
6234                        } else {
6235                            this.child(if let Some(icon) = &self.icon {
6236                                div().child(Icon::from_path(icon.clone()))
6237                            } else {
6238                                div()
6239                            })
6240                            .child(Label::new(self.filename.clone()))
6241                        }
6242                    }),
6243            )
6244    }
6245}
6246
6247impl EventEmitter<Event> for ProjectPanel {}
6248
6249impl EventEmitter<PanelEvent> for ProjectPanel {}
6250
6251impl Panel for ProjectPanel {
6252    fn position(&self, _: &Window, cx: &App) -> DockPosition {
6253        match ProjectPanelSettings::get_global(cx).dock {
6254            DockSide::Left => DockPosition::Left,
6255            DockSide::Right => DockPosition::Right,
6256        }
6257    }
6258
6259    fn position_is_valid(&self, position: DockPosition) -> bool {
6260        matches!(position, DockPosition::Left | DockPosition::Right)
6261    }
6262
6263    fn set_position(&mut self, position: DockPosition, _: &mut Window, cx: &mut Context<Self>) {
6264        settings::update_settings_file(self.fs.clone(), cx, move |settings, _| {
6265            let dock = match position {
6266                DockPosition::Left | DockPosition::Bottom => DockSide::Left,
6267                DockPosition::Right => DockSide::Right,
6268            };
6269            settings.project_panel.get_or_insert_default().dock = Some(dock);
6270        });
6271    }
6272
6273    fn size(&self, _: &Window, cx: &App) -> Pixels {
6274        self.width
6275            .unwrap_or_else(|| ProjectPanelSettings::get_global(cx).default_width)
6276    }
6277
6278    fn set_size(&mut self, size: Option<Pixels>, window: &mut Window, cx: &mut Context<Self>) {
6279        self.width = size;
6280        cx.notify();
6281        cx.defer_in(window, |this, _, cx| {
6282            this.serialize(cx);
6283        });
6284    }
6285
6286    fn icon(&self, _: &Window, cx: &App) -> Option<IconName> {
6287        ProjectPanelSettings::get_global(cx)
6288            .button
6289            .then_some(IconName::FileTree)
6290    }
6291
6292    fn icon_tooltip(&self, _window: &Window, _cx: &App) -> Option<&'static str> {
6293        Some("Project Panel")
6294    }
6295
6296    fn toggle_action(&self) -> Box<dyn Action> {
6297        Box::new(ToggleFocus)
6298    }
6299
6300    fn persistent_name() -> &'static str {
6301        "Project Panel"
6302    }
6303
6304    fn panel_key() -> &'static str {
6305        PROJECT_PANEL_KEY
6306    }
6307
6308    fn starts_open(&self, _: &Window, cx: &App) -> bool {
6309        if !ProjectPanelSettings::get_global(cx).starts_open {
6310            return false;
6311        }
6312
6313        let project = &self.project.read(cx);
6314        project.visible_worktrees(cx).any(|tree| {
6315            tree.read(cx)
6316                .root_entry()
6317                .is_some_and(|entry| entry.is_dir())
6318        })
6319    }
6320
6321    fn activation_priority(&self) -> u32 {
6322        0
6323    }
6324}
6325
6326impl Focusable for ProjectPanel {
6327    fn focus_handle(&self, _cx: &App) -> FocusHandle {
6328        self.focus_handle.clone()
6329    }
6330}
6331
6332impl ClipboardEntry {
6333    fn is_cut(&self) -> bool {
6334        matches!(self, Self::Cut { .. })
6335    }
6336
6337    fn items(&self) -> &BTreeSet<SelectedEntry> {
6338        match self {
6339            ClipboardEntry::Copied(entries) | ClipboardEntry::Cut(entries) => entries,
6340        }
6341    }
6342
6343    fn into_copy_entry(self) -> Self {
6344        match self {
6345            ClipboardEntry::Copied(_) => self,
6346            ClipboardEntry::Cut(entries) => ClipboardEntry::Copied(entries),
6347        }
6348    }
6349}
6350
6351#[inline]
6352fn cmp_directories_first(a: &Entry, b: &Entry) -> cmp::Ordering {
6353    util::paths::compare_rel_paths((&a.path, a.is_file()), (&b.path, b.is_file()))
6354}
6355
6356#[inline]
6357fn cmp_mixed(a: &Entry, b: &Entry) -> cmp::Ordering {
6358    util::paths::compare_rel_paths_mixed((&a.path, a.is_file()), (&b.path, b.is_file()))
6359}
6360
6361#[inline]
6362fn cmp_files_first(a: &Entry, b: &Entry) -> cmp::Ordering {
6363    util::paths::compare_rel_paths_files_first((&a.path, a.is_file()), (&b.path, b.is_file()))
6364}
6365
6366#[inline]
6367fn cmp_with_mode(a: &Entry, b: &Entry, mode: &settings::ProjectPanelSortMode) -> cmp::Ordering {
6368    match mode {
6369        settings::ProjectPanelSortMode::DirectoriesFirst => cmp_directories_first(a, b),
6370        settings::ProjectPanelSortMode::Mixed => cmp_mixed(a, b),
6371        settings::ProjectPanelSortMode::FilesFirst => cmp_files_first(a, b),
6372    }
6373}
6374
6375pub fn sort_worktree_entries_with_mode(
6376    entries: &mut [impl AsRef<Entry>],
6377    mode: settings::ProjectPanelSortMode,
6378) {
6379    entries.sort_by(|lhs, rhs| cmp_with_mode(lhs.as_ref(), rhs.as_ref(), &mode));
6380}
6381
6382pub fn par_sort_worktree_entries_with_mode(
6383    entries: &mut Vec<GitEntry>,
6384    mode: settings::ProjectPanelSortMode,
6385) {
6386    entries.par_sort_by(|lhs, rhs| cmp_with_mode(lhs, rhs, &mode));
6387}
6388
6389#[cfg(test)]
6390mod project_panel_tests;