project_panel.rs

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