workspace.rs

    1pub mod active_file_name;
    2pub mod dock;
    3pub mod history_manager;
    4pub mod invalid_item_view;
    5pub mod item;
    6mod modal_layer;
    7mod multi_workspace;
    8#[cfg(test)]
    9mod multi_workspace_tests;
   10pub mod notifications;
   11pub mod pane;
   12pub mod pane_group;
   13pub mod path_list {
   14    pub use util::path_list::{PathList, SerializedPathList};
   15}
   16mod persistence;
   17pub mod searchable;
   18mod security_modal;
   19pub mod shared_screen;
   20use db::smol::future::yield_now;
   21pub use shared_screen::SharedScreen;
   22pub mod focus_follows_mouse;
   23mod status_bar;
   24pub mod tasks;
   25mod theme_preview;
   26mod toast_layer;
   27mod toolbar;
   28pub mod welcome;
   29mod workspace_settings;
   30
   31pub use crate::notifications::NotificationFrame;
   32pub use dock::Panel;
   33pub use multi_workspace::{
   34    CloseWorkspaceSidebar, DraggedSidebar, FocusWorkspaceSidebar, MoveWorkspaceToNewWindow,
   35    MultiWorkspace, MultiWorkspaceEvent, NewThread, NextProject, NextThread, PreviousProject,
   36    PreviousThread, ShowFewerThreads, ShowMoreThreads, Sidebar, SidebarEvent, SidebarHandle,
   37    SidebarRenderState, SidebarSide, ToggleWorkspaceSidebar, sidebar_side_context_menu,
   38};
   39pub use path_list::{PathList, SerializedPathList};
   40pub use toast_layer::{ToastAction, ToastLayer, ToastView};
   41
   42use anyhow::{Context as _, Result, anyhow};
   43use client::{
   44    ChannelId, Client, ErrorExt, ParticipantIndex, Status, TypedEnvelope, User, UserStore,
   45    proto::{self, ErrorCode, PanelId, PeerId},
   46};
   47use collections::{HashMap, HashSet, hash_map};
   48use dock::{Dock, DockPosition, PanelButtons, PanelHandle, RESIZE_HANDLE_SIZE};
   49use fs::Fs;
   50use futures::{
   51    Future, FutureExt, StreamExt,
   52    channel::{
   53        mpsc::{self, UnboundedReceiver, UnboundedSender},
   54        oneshot,
   55    },
   56    future::{Shared, try_join_all},
   57};
   58use gpui::{
   59    Action, AnyEntity, AnyView, AnyWeakView, App, AsyncApp, AsyncWindowContext, Axis, Bounds,
   60    Context, CursorStyle, Decorations, DragMoveEvent, Entity, EntityId, EventEmitter, FocusHandle,
   61    Focusable, Global, HitboxBehavior, Hsla, KeyContext, Keystroke, ManagedView, MouseButton,
   62    PathPromptOptions, Point, PromptLevel, Render, ResizeEdge, Size, Stateful, Subscription,
   63    SystemWindowTabController, Task, Tiling, WeakEntity, WindowBounds, WindowHandle, WindowId,
   64    WindowOptions, actions, canvas, point, relative, size, transparent_black,
   65};
   66pub use history_manager::*;
   67pub use item::{
   68    FollowableItem, FollowableItemHandle, Item, ItemHandle, ItemSettings, PreviewTabsSettings,
   69    ProjectItem, SerializableItem, SerializableItemHandle, WeakItemHandle,
   70};
   71use itertools::Itertools;
   72use language::{Buffer, LanguageRegistry, Rope, language_settings::all_language_settings};
   73pub use modal_layer::*;
   74use node_runtime::NodeRuntime;
   75use notifications::{
   76    DetachAndPromptErr, Notifications, dismiss_app_notification,
   77    simple_message_notification::MessageNotification,
   78};
   79pub use pane::*;
   80pub use pane_group::{
   81    ActivePaneDecorator, HANDLE_HITBOX_SIZE, Member, PaneAxis, PaneGroup, PaneRenderContext,
   82    SplitDirection,
   83};
   84use persistence::{SerializedWindowBounds, model::SerializedWorkspace};
   85pub use persistence::{
   86    WorkspaceDb, delete_unloaded_items,
   87    model::{
   88        DockStructure, ItemId, MultiWorkspaceState, SerializedMultiWorkspace,
   89        SerializedWorkspaceLocation, SessionWorkspace,
   90    },
   91    read_serialized_multi_workspaces, resolve_worktree_workspaces,
   92};
   93use postage::stream::Stream;
   94use project::{
   95    DirectoryLister, Project, ProjectEntryId, ProjectGroupKey, ProjectPath, ResolvedPath, Worktree,
   96    WorktreeId, WorktreeSettings,
   97    debugger::{breakpoint_store::BreakpointStoreEvent, session::ThreadStatus},
   98    project_settings::ProjectSettings,
   99    toolchain_store::ToolchainStoreEvent,
  100    trusted_worktrees::{RemoteHostLocation, TrustedWorktrees, TrustedWorktreesEvent},
  101};
  102use remote::{
  103    RemoteClientDelegate, RemoteConnection, RemoteConnectionOptions,
  104    remote_client::ConnectionIdentifier,
  105};
  106use schemars::JsonSchema;
  107use serde::Deserialize;
  108use session::AppSession;
  109use settings::{
  110    CenteredPaddingSettings, Settings, SettingsLocation, SettingsStore, update_settings_file,
  111};
  112
  113use sqlez::{
  114    bindable::{Bind, Column, StaticColumnCount},
  115    statement::Statement,
  116};
  117use status_bar::StatusBar;
  118pub use status_bar::StatusItemView;
  119use std::{
  120    any::TypeId,
  121    borrow::Cow,
  122    cell::RefCell,
  123    cmp,
  124    collections::VecDeque,
  125    env,
  126    hash::Hash,
  127    path::{Path, PathBuf},
  128    process::ExitStatus,
  129    rc::Rc,
  130    sync::{
  131        Arc, LazyLock,
  132        atomic::{AtomicBool, AtomicUsize},
  133    },
  134    time::Duration,
  135};
  136use task::{DebugScenario, SharedTaskContext, SpawnInTerminal};
  137use theme::{ActiveTheme, SystemAppearance};
  138use theme_settings::ThemeSettings;
  139pub use toolbar::{
  140    PaneSearchBarCallbacks, Toolbar, ToolbarItemEvent, ToolbarItemLocation, ToolbarItemView,
  141};
  142pub use ui;
  143use ui::{Window, prelude::*};
  144use util::{
  145    ResultExt, TryFutureExt,
  146    paths::{PathStyle, SanitizedPath},
  147    rel_path::RelPath,
  148    serde::default_true,
  149};
  150use uuid::Uuid;
  151pub use workspace_settings::{
  152    AutosaveSetting, BottomDockLayout, FocusFollowsMouse, RestoreOnStartupBehavior,
  153    StatusBarSettings, TabBarSettings, WorkspaceSettings,
  154};
  155use zed_actions::{Spawn, feedback::FileBugReport, theme::ToggleMode};
  156
  157use crate::{dock::PanelSizeState, item::ItemBufferKind, notifications::NotificationId};
  158use crate::{
  159    persistence::{
  160        SerializedAxis,
  161        model::{DockData, SerializedItem, SerializedPane, SerializedPaneGroup},
  162    },
  163    security_modal::SecurityModal,
  164};
  165
  166pub const SERIALIZATION_THROTTLE_TIME: Duration = Duration::from_millis(200);
  167
  168static ZED_WINDOW_SIZE: LazyLock<Option<Size<Pixels>>> = LazyLock::new(|| {
  169    env::var("ZED_WINDOW_SIZE")
  170        .ok()
  171        .as_deref()
  172        .and_then(parse_pixel_size_env_var)
  173});
  174
  175static ZED_WINDOW_POSITION: LazyLock<Option<Point<Pixels>>> = LazyLock::new(|| {
  176    env::var("ZED_WINDOW_POSITION")
  177        .ok()
  178        .as_deref()
  179        .and_then(parse_pixel_position_env_var)
  180});
  181
  182pub trait TerminalProvider {
  183    fn spawn(
  184        &self,
  185        task: SpawnInTerminal,
  186        window: &mut Window,
  187        cx: &mut App,
  188    ) -> Task<Option<Result<ExitStatus>>>;
  189}
  190
  191pub trait DebuggerProvider {
  192    // `active_buffer` is used to resolve build task's name against language-specific tasks.
  193    fn start_session(
  194        &self,
  195        definition: DebugScenario,
  196        task_context: SharedTaskContext,
  197        active_buffer: Option<Entity<Buffer>>,
  198        worktree_id: Option<WorktreeId>,
  199        window: &mut Window,
  200        cx: &mut App,
  201    );
  202
  203    fn spawn_task_or_modal(
  204        &self,
  205        workspace: &mut Workspace,
  206        action: &Spawn,
  207        window: &mut Window,
  208        cx: &mut Context<Workspace>,
  209    );
  210
  211    fn task_scheduled(&self, cx: &mut App);
  212    fn debug_scenario_scheduled(&self, cx: &mut App);
  213    fn debug_scenario_scheduled_last(&self, cx: &App) -> bool;
  214
  215    fn active_thread_state(&self, cx: &App) -> Option<ThreadStatus>;
  216}
  217
  218/// Opens a file or directory.
  219#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  220#[action(namespace = workspace)]
  221pub struct Open {
  222    /// When true, opens in a new window. When false, adds to the current
  223    /// window as a new workspace (multi-workspace).
  224    #[serde(default = "Open::default_create_new_window")]
  225    pub create_new_window: bool,
  226}
  227
  228impl Open {
  229    pub const DEFAULT: Self = Self {
  230        create_new_window: true,
  231    };
  232
  233    /// Used by `#[serde(default)]` on the `create_new_window` field so that
  234    /// the serde default and `Open::DEFAULT` stay in sync.
  235    fn default_create_new_window() -> bool {
  236        Self::DEFAULT.create_new_window
  237    }
  238}
  239
  240impl Default for Open {
  241    fn default() -> Self {
  242        Self::DEFAULT
  243    }
  244}
  245
  246actions!(
  247    workspace,
  248    [
  249        /// Activates the next pane in the workspace.
  250        ActivateNextPane,
  251        /// Activates the previous pane in the workspace.
  252        ActivatePreviousPane,
  253        /// Activates the last pane in the workspace.
  254        ActivateLastPane,
  255        /// Switches to the next window.
  256        ActivateNextWindow,
  257        /// Switches to the previous window.
  258        ActivatePreviousWindow,
  259        /// Adds a folder to the current project.
  260        AddFolderToProject,
  261        /// Clears all notifications.
  262        ClearAllNotifications,
  263        /// Clears all navigation history, including forward/backward navigation, recently opened files, and recently closed tabs. **This action is irreversible**.
  264        ClearNavigationHistory,
  265        /// Closes the active dock.
  266        CloseActiveDock,
  267        /// Closes all docks.
  268        CloseAllDocks,
  269        /// Toggles all docks.
  270        ToggleAllDocks,
  271        /// Closes the current window.
  272        CloseWindow,
  273        /// Closes the current project.
  274        CloseProject,
  275        /// Opens the feedback dialog.
  276        Feedback,
  277        /// Follows the next collaborator in the session.
  278        FollowNextCollaborator,
  279        /// Moves the focused panel to the next position.
  280        MoveFocusedPanelToNextPosition,
  281        /// Creates a new file.
  282        NewFile,
  283        /// Creates a new file in a vertical split.
  284        NewFileSplitVertical,
  285        /// Creates a new file in a horizontal split.
  286        NewFileSplitHorizontal,
  287        /// Opens a new search.
  288        NewSearch,
  289        /// Opens a new window.
  290        NewWindow,
  291        /// Opens multiple files.
  292        OpenFiles,
  293        /// Opens the current location in terminal.
  294        OpenInTerminal,
  295        /// Opens the component preview.
  296        OpenComponentPreview,
  297        /// Reloads the active item.
  298        ReloadActiveItem,
  299        /// Resets the active dock to its default size.
  300        ResetActiveDockSize,
  301        /// Resets all open docks to their default sizes.
  302        ResetOpenDocksSize,
  303        /// Reloads the application
  304        Reload,
  305        /// Saves the current file with a new name.
  306        SaveAs,
  307        /// Saves without formatting.
  308        SaveWithoutFormat,
  309        /// Shuts down all debug adapters.
  310        ShutdownDebugAdapters,
  311        /// Suppresses the current notification.
  312        SuppressNotification,
  313        /// Toggles the bottom dock.
  314        ToggleBottomDock,
  315        /// Toggles centered layout mode.
  316        ToggleCenteredLayout,
  317        /// Toggles edit prediction feature globally for all files.
  318        ToggleEditPrediction,
  319        /// Toggles the left dock.
  320        ToggleLeftDock,
  321        /// Toggles the right dock.
  322        ToggleRightDock,
  323        /// Toggles zoom on the active pane.
  324        ToggleZoom,
  325        /// Toggles read-only mode for the active item (if supported by that item).
  326        ToggleReadOnlyFile,
  327        /// Zooms in on the active pane.
  328        ZoomIn,
  329        /// Zooms out of the active pane.
  330        ZoomOut,
  331        /// If any worktrees are in restricted mode, shows a modal with possible actions.
  332        /// If the modal is shown already, closes it without trusting any worktree.
  333        ToggleWorktreeSecurity,
  334        /// Clears all trusted worktrees, placing them in restricted mode on next open.
  335        /// Requires restart to take effect on already opened projects.
  336        ClearTrustedWorktrees,
  337        /// Stops following a collaborator.
  338        Unfollow,
  339        /// Restores the banner.
  340        RestoreBanner,
  341        /// Toggles expansion of the selected item.
  342        ToggleExpandItem,
  343    ]
  344);
  345
  346/// Activates a specific pane by its index.
  347#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  348#[action(namespace = workspace)]
  349pub struct ActivatePane(pub usize);
  350
  351/// Moves an item to a specific pane by index.
  352#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  353#[action(namespace = workspace)]
  354#[serde(deny_unknown_fields)]
  355pub struct MoveItemToPane {
  356    #[serde(default = "default_1")]
  357    pub destination: usize,
  358    #[serde(default = "default_true")]
  359    pub focus: bool,
  360    #[serde(default)]
  361    pub clone: bool,
  362}
  363
  364fn default_1() -> usize {
  365    1
  366}
  367
  368/// Moves an item to a pane in the specified direction.
  369#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  370#[action(namespace = workspace)]
  371#[serde(deny_unknown_fields)]
  372pub struct MoveItemToPaneInDirection {
  373    #[serde(default = "default_right")]
  374    pub direction: SplitDirection,
  375    #[serde(default = "default_true")]
  376    pub focus: bool,
  377    #[serde(default)]
  378    pub clone: bool,
  379}
  380
  381/// Creates a new file in a split of the desired direction.
  382#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  383#[action(namespace = workspace)]
  384#[serde(deny_unknown_fields)]
  385pub struct NewFileSplit(pub SplitDirection);
  386
  387fn default_right() -> SplitDirection {
  388    SplitDirection::Right
  389}
  390
  391/// Saves all open files in the workspace.
  392#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  393#[action(namespace = workspace)]
  394#[serde(deny_unknown_fields)]
  395pub struct SaveAll {
  396    #[serde(default)]
  397    pub save_intent: Option<SaveIntent>,
  398}
  399
  400/// Saves the current file with the specified options.
  401#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  402#[action(namespace = workspace)]
  403#[serde(deny_unknown_fields)]
  404pub struct Save {
  405    #[serde(default)]
  406    pub save_intent: Option<SaveIntent>,
  407}
  408
  409/// Moves Focus to the central panes in the workspace.
  410#[derive(Clone, Debug, PartialEq, Eq, Action)]
  411#[action(namespace = workspace)]
  412pub struct FocusCenterPane;
  413
  414///  Closes all items and panes in the workspace.
  415#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  416#[action(namespace = workspace)]
  417#[serde(deny_unknown_fields)]
  418pub struct CloseAllItemsAndPanes {
  419    #[serde(default)]
  420    pub save_intent: Option<SaveIntent>,
  421}
  422
  423/// Closes all inactive tabs and panes in the workspace.
  424#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  425#[action(namespace = workspace)]
  426#[serde(deny_unknown_fields)]
  427pub struct CloseInactiveTabsAndPanes {
  428    #[serde(default)]
  429    pub save_intent: Option<SaveIntent>,
  430}
  431
  432/// Closes the active item across all panes.
  433#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  434#[action(namespace = workspace)]
  435#[serde(deny_unknown_fields)]
  436pub struct CloseItemInAllPanes {
  437    #[serde(default)]
  438    pub save_intent: Option<SaveIntent>,
  439    #[serde(default)]
  440    pub close_pinned: bool,
  441}
  442
  443/// Sends a sequence of keystrokes to the active element.
  444#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  445#[action(namespace = workspace)]
  446pub struct SendKeystrokes(pub String);
  447
  448actions!(
  449    project_symbols,
  450    [
  451        /// Toggles the project symbols search.
  452        #[action(name = "Toggle")]
  453        ToggleProjectSymbols
  454    ]
  455);
  456
  457/// Toggles the file finder interface.
  458#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  459#[action(namespace = file_finder, name = "Toggle")]
  460#[serde(deny_unknown_fields)]
  461pub struct ToggleFileFinder {
  462    #[serde(default)]
  463    pub separate_history: bool,
  464}
  465
  466/// Opens a new terminal in the center.
  467#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  468#[action(namespace = workspace)]
  469#[serde(deny_unknown_fields)]
  470pub struct NewCenterTerminal {
  471    /// If true, creates a local terminal even in remote projects.
  472    #[serde(default)]
  473    pub local: bool,
  474}
  475
  476/// Opens a new terminal.
  477#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  478#[action(namespace = workspace)]
  479#[serde(deny_unknown_fields)]
  480pub struct NewTerminal {
  481    /// If true, creates a local terminal even in remote projects.
  482    #[serde(default)]
  483    pub local: bool,
  484}
  485
  486/// Increases size of a currently focused dock by a given amount of pixels.
  487#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  488#[action(namespace = workspace)]
  489#[serde(deny_unknown_fields)]
  490pub struct IncreaseActiveDockSize {
  491    /// For 0px parameter, uses UI font size value.
  492    #[serde(default)]
  493    pub px: u32,
  494}
  495
  496/// Decreases size of a currently focused dock by a given amount of pixels.
  497#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  498#[action(namespace = workspace)]
  499#[serde(deny_unknown_fields)]
  500pub struct DecreaseActiveDockSize {
  501    /// For 0px parameter, uses UI font size value.
  502    #[serde(default)]
  503    pub px: u32,
  504}
  505
  506/// Increases size of all currently visible docks uniformly, by a given amount of pixels.
  507#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  508#[action(namespace = workspace)]
  509#[serde(deny_unknown_fields)]
  510pub struct IncreaseOpenDocksSize {
  511    /// For 0px parameter, uses UI font size value.
  512    #[serde(default)]
  513    pub px: u32,
  514}
  515
  516/// Decreases size of all currently visible docks uniformly, by a given amount of pixels.
  517#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  518#[action(namespace = workspace)]
  519#[serde(deny_unknown_fields)]
  520pub struct DecreaseOpenDocksSize {
  521    /// For 0px parameter, uses UI font size value.
  522    #[serde(default)]
  523    pub px: u32,
  524}
  525
  526actions!(
  527    workspace,
  528    [
  529        /// Activates the pane to the left.
  530        ActivatePaneLeft,
  531        /// Activates the pane to the right.
  532        ActivatePaneRight,
  533        /// Activates the pane above.
  534        ActivatePaneUp,
  535        /// Activates the pane below.
  536        ActivatePaneDown,
  537        /// Swaps the current pane with the one to the left.
  538        SwapPaneLeft,
  539        /// Swaps the current pane with the one to the right.
  540        SwapPaneRight,
  541        /// Swaps the current pane with the one above.
  542        SwapPaneUp,
  543        /// Swaps the current pane with the one below.
  544        SwapPaneDown,
  545        // Swaps the current pane with the first available adjacent pane (searching in order: below, above, right, left) and activates that pane.
  546        SwapPaneAdjacent,
  547        /// Move the current pane to be at the far left.
  548        MovePaneLeft,
  549        /// Move the current pane to be at the far right.
  550        MovePaneRight,
  551        /// Move the current pane to be at the very top.
  552        MovePaneUp,
  553        /// Move the current pane to be at the very bottom.
  554        MovePaneDown,
  555    ]
  556);
  557
  558#[derive(PartialEq, Eq, Debug)]
  559pub enum CloseIntent {
  560    /// Quit the program entirely.
  561    Quit,
  562    /// Close a window.
  563    CloseWindow,
  564    /// Replace the workspace in an existing window.
  565    ReplaceWindow,
  566}
  567
  568#[derive(Clone)]
  569pub struct Toast {
  570    id: NotificationId,
  571    msg: Cow<'static, str>,
  572    autohide: bool,
  573    on_click: Option<(Cow<'static, str>, Arc<dyn Fn(&mut Window, &mut App)>)>,
  574}
  575
  576impl Toast {
  577    pub fn new<I: Into<Cow<'static, str>>>(id: NotificationId, msg: I) -> Self {
  578        Toast {
  579            id,
  580            msg: msg.into(),
  581            on_click: None,
  582            autohide: false,
  583        }
  584    }
  585
  586    pub fn on_click<F, M>(mut self, message: M, on_click: F) -> Self
  587    where
  588        M: Into<Cow<'static, str>>,
  589        F: Fn(&mut Window, &mut App) + 'static,
  590    {
  591        self.on_click = Some((message.into(), Arc::new(on_click)));
  592        self
  593    }
  594
  595    pub fn autohide(mut self) -> Self {
  596        self.autohide = true;
  597        self
  598    }
  599}
  600
  601impl PartialEq for Toast {
  602    fn eq(&self, other: &Self) -> bool {
  603        self.id == other.id
  604            && self.msg == other.msg
  605            && self.on_click.is_some() == other.on_click.is_some()
  606    }
  607}
  608
  609/// Opens a new terminal with the specified working directory.
  610#[derive(Debug, Default, Clone, Deserialize, PartialEq, JsonSchema, Action)]
  611#[action(namespace = workspace)]
  612#[serde(deny_unknown_fields)]
  613pub struct OpenTerminal {
  614    pub working_directory: PathBuf,
  615    /// If true, creates a local terminal even in remote projects.
  616    #[serde(default)]
  617    pub local: bool,
  618}
  619
  620#[derive(
  621    Clone,
  622    Copy,
  623    Debug,
  624    Default,
  625    Hash,
  626    PartialEq,
  627    Eq,
  628    PartialOrd,
  629    Ord,
  630    serde::Serialize,
  631    serde::Deserialize,
  632)]
  633pub struct WorkspaceId(i64);
  634
  635impl WorkspaceId {
  636    pub fn from_i64(value: i64) -> Self {
  637        Self(value)
  638    }
  639}
  640
  641impl StaticColumnCount for WorkspaceId {}
  642impl Bind for WorkspaceId {
  643    fn bind(&self, statement: &Statement, start_index: i32) -> Result<i32> {
  644        self.0.bind(statement, start_index)
  645    }
  646}
  647impl Column for WorkspaceId {
  648    fn column(statement: &mut Statement, start_index: i32) -> Result<(Self, i32)> {
  649        i64::column(statement, start_index)
  650            .map(|(i, next_index)| (Self(i), next_index))
  651            .with_context(|| format!("Failed to read WorkspaceId at index {start_index}"))
  652    }
  653}
  654impl From<WorkspaceId> for i64 {
  655    fn from(val: WorkspaceId) -> Self {
  656        val.0
  657    }
  658}
  659
  660fn prompt_and_open_paths(
  661    app_state: Arc<AppState>,
  662    options: PathPromptOptions,
  663    create_new_window: bool,
  664    cx: &mut App,
  665) {
  666    if let Some(workspace_window) = local_workspace_windows(cx).into_iter().next() {
  667        workspace_window
  668            .update(cx, |multi_workspace, window, cx| {
  669                let workspace = multi_workspace.workspace().clone();
  670                workspace.update(cx, |workspace, cx| {
  671                    prompt_for_open_path_and_open(
  672                        workspace,
  673                        app_state,
  674                        options,
  675                        create_new_window,
  676                        window,
  677                        cx,
  678                    );
  679                });
  680            })
  681            .ok();
  682    } else {
  683        let task = Workspace::new_local(
  684            Vec::new(),
  685            app_state.clone(),
  686            None,
  687            None,
  688            None,
  689            OpenMode::Activate,
  690            cx,
  691        );
  692        cx.spawn(async move |cx| {
  693            let OpenResult { window, .. } = task.await?;
  694            window.update(cx, |multi_workspace, window, cx| {
  695                window.activate_window();
  696                let workspace = multi_workspace.workspace().clone();
  697                workspace.update(cx, |workspace, cx| {
  698                    prompt_for_open_path_and_open(
  699                        workspace,
  700                        app_state,
  701                        options,
  702                        create_new_window,
  703                        window,
  704                        cx,
  705                    );
  706                });
  707            })?;
  708            anyhow::Ok(())
  709        })
  710        .detach_and_log_err(cx);
  711    }
  712}
  713
  714pub fn prompt_for_open_path_and_open(
  715    workspace: &mut Workspace,
  716    app_state: Arc<AppState>,
  717    options: PathPromptOptions,
  718    create_new_window: bool,
  719    window: &mut Window,
  720    cx: &mut Context<Workspace>,
  721) {
  722    let paths = workspace.prompt_for_open_path(
  723        options,
  724        DirectoryLister::Local(workspace.project().clone(), app_state.fs.clone()),
  725        window,
  726        cx,
  727    );
  728    let multi_workspace_handle = window.window_handle().downcast::<MultiWorkspace>();
  729    cx.spawn_in(window, async move |this, cx| {
  730        let Some(paths) = paths.await.log_err().flatten() else {
  731            return;
  732        };
  733        if !create_new_window {
  734            if let Some(handle) = multi_workspace_handle {
  735                if let Some(task) = handle
  736                    .update(cx, |multi_workspace, window, cx| {
  737                        multi_workspace.open_project(paths, OpenMode::Activate, window, cx)
  738                    })
  739                    .log_err()
  740                {
  741                    task.await.log_err();
  742                }
  743                return;
  744            }
  745        }
  746        if let Some(task) = this
  747            .update_in(cx, |this, window, cx| {
  748                this.open_workspace_for_paths(OpenMode::NewWindow, paths, window, cx)
  749            })
  750            .log_err()
  751        {
  752            task.await.log_err();
  753        }
  754    })
  755    .detach();
  756}
  757
  758pub fn init(app_state: Arc<AppState>, cx: &mut App) {
  759    component::init();
  760    theme_preview::init(cx);
  761    toast_layer::init(cx);
  762    history_manager::init(app_state.fs.clone(), cx);
  763
  764    cx.on_action(|_: &CloseWindow, cx| Workspace::close_global(cx))
  765        .on_action(|_: &Reload, cx| reload(cx))
  766        .on_action(|action: &Open, cx: &mut App| {
  767            let app_state = AppState::global(cx);
  768            prompt_and_open_paths(
  769                app_state,
  770                PathPromptOptions {
  771                    files: true,
  772                    directories: true,
  773                    multiple: true,
  774                    prompt: None,
  775                },
  776                action.create_new_window,
  777                cx,
  778            );
  779        })
  780        .on_action(|_: &OpenFiles, cx: &mut App| {
  781            let directories = cx.can_select_mixed_files_and_dirs();
  782            let app_state = AppState::global(cx);
  783            prompt_and_open_paths(
  784                app_state,
  785                PathPromptOptions {
  786                    files: true,
  787                    directories,
  788                    multiple: true,
  789                    prompt: None,
  790                },
  791                true,
  792                cx,
  793            );
  794        });
  795}
  796
  797type BuildProjectItemFn =
  798    fn(AnyEntity, Entity<Project>, Option<&Pane>, &mut Window, &mut App) -> Box<dyn ItemHandle>;
  799
  800type BuildProjectItemForPathFn =
  801    fn(
  802        &Entity<Project>,
  803        &ProjectPath,
  804        &mut Window,
  805        &mut App,
  806    ) -> Option<Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>>>;
  807
  808#[derive(Clone, Default)]
  809struct ProjectItemRegistry {
  810    build_project_item_fns_by_type: HashMap<TypeId, BuildProjectItemFn>,
  811    build_project_item_for_path_fns: Vec<BuildProjectItemForPathFn>,
  812}
  813
  814impl ProjectItemRegistry {
  815    fn register<T: ProjectItem>(&mut self) {
  816        self.build_project_item_fns_by_type.insert(
  817            TypeId::of::<T::Item>(),
  818            |item, project, pane, window, cx| {
  819                let item = item.downcast().unwrap();
  820                Box::new(cx.new(|cx| T::for_project_item(project, pane, item, window, cx)))
  821                    as Box<dyn ItemHandle>
  822            },
  823        );
  824        self.build_project_item_for_path_fns
  825            .push(|project, project_path, window, cx| {
  826                let project_path = project_path.clone();
  827                let is_file = project
  828                    .read(cx)
  829                    .entry_for_path(&project_path, cx)
  830                    .is_some_and(|entry| entry.is_file());
  831                let entry_abs_path = project.read(cx).absolute_path(&project_path, cx);
  832                let is_local = project.read(cx).is_local();
  833                let project_item =
  834                    <T::Item as project::ProjectItem>::try_open(project, &project_path, cx)?;
  835                let project = project.clone();
  836                Some(window.spawn(cx, async move |cx| {
  837                    match project_item.await.with_context(|| {
  838                        format!(
  839                            "opening project path {:?}",
  840                            entry_abs_path.as_deref().unwrap_or(&project_path.path.as_std_path())
  841                        )
  842                    }) {
  843                        Ok(project_item) => {
  844                            let project_item = project_item;
  845                            let project_entry_id: Option<ProjectEntryId> =
  846                                project_item.read_with(cx, project::ProjectItem::entry_id);
  847                            let build_workspace_item = Box::new(
  848                                |pane: &mut Pane, window: &mut Window, cx: &mut Context<Pane>| {
  849                                    Box::new(cx.new(|cx| {
  850                                        T::for_project_item(
  851                                            project,
  852                                            Some(pane),
  853                                            project_item,
  854                                            window,
  855                                            cx,
  856                                        )
  857                                    })) as Box<dyn ItemHandle>
  858                                },
  859                            ) as Box<_>;
  860                            Ok((project_entry_id, build_workspace_item))
  861                        }
  862                        Err(e) => {
  863                            log::warn!("Failed to open a project item: {e:#}");
  864                            if e.error_code() == ErrorCode::Internal {
  865                                if let Some(abs_path) =
  866                                    entry_abs_path.as_deref().filter(|_| is_file)
  867                                {
  868                                    if let Some(broken_project_item_view) =
  869                                        cx.update(|window, cx| {
  870                                            T::for_broken_project_item(
  871                                                abs_path, is_local, &e, window, cx,
  872                                            )
  873                                        })?
  874                                    {
  875                                        let build_workspace_item = Box::new(
  876                                            move |_: &mut Pane, _: &mut Window, cx: &mut Context<Pane>| {
  877                                                cx.new(|_| broken_project_item_view).boxed_clone()
  878                                            },
  879                                        )
  880                                        as Box<_>;
  881                                        return Ok((None, build_workspace_item));
  882                                    }
  883                                }
  884                            }
  885                            Err(e)
  886                        }
  887                    }
  888                }))
  889            });
  890    }
  891
  892    fn open_path(
  893        &self,
  894        project: &Entity<Project>,
  895        path: &ProjectPath,
  896        window: &mut Window,
  897        cx: &mut App,
  898    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
  899        let Some(open_project_item) = self
  900            .build_project_item_for_path_fns
  901            .iter()
  902            .rev()
  903            .find_map(|open_project_item| open_project_item(project, path, window, cx))
  904        else {
  905            return Task::ready(Err(anyhow!("cannot open file {:?}", path.path)));
  906        };
  907        open_project_item
  908    }
  909
  910    fn build_item<T: project::ProjectItem>(
  911        &self,
  912        item: Entity<T>,
  913        project: Entity<Project>,
  914        pane: Option<&Pane>,
  915        window: &mut Window,
  916        cx: &mut App,
  917    ) -> Option<Box<dyn ItemHandle>> {
  918        let build = self
  919            .build_project_item_fns_by_type
  920            .get(&TypeId::of::<T>())?;
  921        Some(build(item.into_any(), project, pane, window, cx))
  922    }
  923}
  924
  925type WorkspaceItemBuilder =
  926    Box<dyn FnOnce(&mut Pane, &mut Window, &mut Context<Pane>) -> Box<dyn ItemHandle>>;
  927
  928impl Global for ProjectItemRegistry {}
  929
  930/// Registers a [ProjectItem] for the app. When opening a file, all the registered
  931/// items will get a chance to open the file, starting from the project item that
  932/// was added last.
  933pub fn register_project_item<I: ProjectItem>(cx: &mut App) {
  934    cx.default_global::<ProjectItemRegistry>().register::<I>();
  935}
  936
  937#[derive(Default)]
  938pub struct FollowableViewRegistry(HashMap<TypeId, FollowableViewDescriptor>);
  939
  940struct FollowableViewDescriptor {
  941    from_state_proto: fn(
  942        Entity<Workspace>,
  943        ViewId,
  944        &mut Option<proto::view::Variant>,
  945        &mut Window,
  946        &mut App,
  947    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>>,
  948    to_followable_view: fn(&AnyView) -> Box<dyn FollowableItemHandle>,
  949}
  950
  951impl Global for FollowableViewRegistry {}
  952
  953impl FollowableViewRegistry {
  954    pub fn register<I: FollowableItem>(cx: &mut App) {
  955        cx.default_global::<Self>().0.insert(
  956            TypeId::of::<I>(),
  957            FollowableViewDescriptor {
  958                from_state_proto: |workspace, id, state, window, cx| {
  959                    I::from_state_proto(workspace, id, state, window, cx).map(|task| {
  960                        cx.foreground_executor()
  961                            .spawn(async move { Ok(Box::new(task.await?) as Box<_>) })
  962                    })
  963                },
  964                to_followable_view: |view| Box::new(view.clone().downcast::<I>().unwrap()),
  965            },
  966        );
  967    }
  968
  969    pub fn from_state_proto(
  970        workspace: Entity<Workspace>,
  971        view_id: ViewId,
  972        mut state: Option<proto::view::Variant>,
  973        window: &mut Window,
  974        cx: &mut App,
  975    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>> {
  976        cx.update_default_global(|this: &mut Self, cx| {
  977            this.0.values().find_map(|descriptor| {
  978                (descriptor.from_state_proto)(workspace.clone(), view_id, &mut state, window, cx)
  979            })
  980        })
  981    }
  982
  983    pub fn to_followable_view(
  984        view: impl Into<AnyView>,
  985        cx: &App,
  986    ) -> Option<Box<dyn FollowableItemHandle>> {
  987        let this = cx.try_global::<Self>()?;
  988        let view = view.into();
  989        let descriptor = this.0.get(&view.entity_type())?;
  990        Some((descriptor.to_followable_view)(&view))
  991    }
  992}
  993
  994#[derive(Copy, Clone)]
  995struct SerializableItemDescriptor {
  996    deserialize: fn(
  997        Entity<Project>,
  998        WeakEntity<Workspace>,
  999        WorkspaceId,
 1000        ItemId,
 1001        &mut Window,
 1002        &mut Context<Pane>,
 1003    ) -> Task<Result<Box<dyn ItemHandle>>>,
 1004    cleanup: fn(WorkspaceId, Vec<ItemId>, &mut Window, &mut App) -> Task<Result<()>>,
 1005    view_to_serializable_item: fn(AnyView) -> Box<dyn SerializableItemHandle>,
 1006}
 1007
 1008#[derive(Default)]
 1009struct SerializableItemRegistry {
 1010    descriptors_by_kind: HashMap<Arc<str>, SerializableItemDescriptor>,
 1011    descriptors_by_type: HashMap<TypeId, SerializableItemDescriptor>,
 1012}
 1013
 1014impl Global for SerializableItemRegistry {}
 1015
 1016impl SerializableItemRegistry {
 1017    fn deserialize(
 1018        item_kind: &str,
 1019        project: Entity<Project>,
 1020        workspace: WeakEntity<Workspace>,
 1021        workspace_id: WorkspaceId,
 1022        item_item: ItemId,
 1023        window: &mut Window,
 1024        cx: &mut Context<Pane>,
 1025    ) -> Task<Result<Box<dyn ItemHandle>>> {
 1026        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
 1027            return Task::ready(Err(anyhow!(
 1028                "cannot deserialize {}, descriptor not found",
 1029                item_kind
 1030            )));
 1031        };
 1032
 1033        (descriptor.deserialize)(project, workspace, workspace_id, item_item, window, cx)
 1034    }
 1035
 1036    fn cleanup(
 1037        item_kind: &str,
 1038        workspace_id: WorkspaceId,
 1039        loaded_items: Vec<ItemId>,
 1040        window: &mut Window,
 1041        cx: &mut App,
 1042    ) -> Task<Result<()>> {
 1043        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
 1044            return Task::ready(Err(anyhow!(
 1045                "cannot cleanup {}, descriptor not found",
 1046                item_kind
 1047            )));
 1048        };
 1049
 1050        (descriptor.cleanup)(workspace_id, loaded_items, window, cx)
 1051    }
 1052
 1053    fn view_to_serializable_item_handle(
 1054        view: AnyView,
 1055        cx: &App,
 1056    ) -> Option<Box<dyn SerializableItemHandle>> {
 1057        let this = cx.try_global::<Self>()?;
 1058        let descriptor = this.descriptors_by_type.get(&view.entity_type())?;
 1059        Some((descriptor.view_to_serializable_item)(view))
 1060    }
 1061
 1062    fn descriptor(item_kind: &str, cx: &App) -> Option<SerializableItemDescriptor> {
 1063        let this = cx.try_global::<Self>()?;
 1064        this.descriptors_by_kind.get(item_kind).copied()
 1065    }
 1066}
 1067
 1068pub fn register_serializable_item<I: SerializableItem>(cx: &mut App) {
 1069    let serialized_item_kind = I::serialized_item_kind();
 1070
 1071    let registry = cx.default_global::<SerializableItemRegistry>();
 1072    let descriptor = SerializableItemDescriptor {
 1073        deserialize: |project, workspace, workspace_id, item_id, window, cx| {
 1074            let task = I::deserialize(project, workspace, workspace_id, item_id, window, cx);
 1075            cx.foreground_executor()
 1076                .spawn(async { Ok(Box::new(task.await?) as Box<_>) })
 1077        },
 1078        cleanup: |workspace_id, loaded_items, window, cx| {
 1079            I::cleanup(workspace_id, loaded_items, window, cx)
 1080        },
 1081        view_to_serializable_item: |view| Box::new(view.downcast::<I>().unwrap()),
 1082    };
 1083    registry
 1084        .descriptors_by_kind
 1085        .insert(Arc::from(serialized_item_kind), descriptor);
 1086    registry
 1087        .descriptors_by_type
 1088        .insert(TypeId::of::<I>(), descriptor);
 1089}
 1090
 1091pub struct AppState {
 1092    pub languages: Arc<LanguageRegistry>,
 1093    pub client: Arc<Client>,
 1094    pub user_store: Entity<UserStore>,
 1095    pub workspace_store: Entity<WorkspaceStore>,
 1096    pub fs: Arc<dyn fs::Fs>,
 1097    pub build_window_options: fn(Option<Uuid>, &mut App) -> WindowOptions,
 1098    pub node_runtime: NodeRuntime,
 1099    pub session: Entity<AppSession>,
 1100}
 1101
 1102struct GlobalAppState(Arc<AppState>);
 1103
 1104impl Global for GlobalAppState {}
 1105
 1106pub struct WorkspaceStore {
 1107    workspaces: HashSet<(gpui::AnyWindowHandle, WeakEntity<Workspace>)>,
 1108    client: Arc<Client>,
 1109    _subscriptions: Vec<client::Subscription>,
 1110}
 1111
 1112#[derive(Copy, Clone, Debug, Hash, Eq, PartialEq, PartialOrd, Ord)]
 1113pub enum CollaboratorId {
 1114    PeerId(PeerId),
 1115    Agent,
 1116}
 1117
 1118impl From<PeerId> for CollaboratorId {
 1119    fn from(peer_id: PeerId) -> Self {
 1120        CollaboratorId::PeerId(peer_id)
 1121    }
 1122}
 1123
 1124impl From<&PeerId> for CollaboratorId {
 1125    fn from(peer_id: &PeerId) -> Self {
 1126        CollaboratorId::PeerId(*peer_id)
 1127    }
 1128}
 1129
 1130#[derive(PartialEq, Eq, PartialOrd, Ord, Debug)]
 1131struct Follower {
 1132    project_id: Option<u64>,
 1133    peer_id: PeerId,
 1134}
 1135
 1136impl AppState {
 1137    #[track_caller]
 1138    pub fn global(cx: &App) -> Arc<Self> {
 1139        cx.global::<GlobalAppState>().0.clone()
 1140    }
 1141    pub fn try_global(cx: &App) -> Option<Arc<Self>> {
 1142        cx.try_global::<GlobalAppState>()
 1143            .map(|state| state.0.clone())
 1144    }
 1145    pub fn set_global(state: Arc<AppState>, cx: &mut App) {
 1146        cx.set_global(GlobalAppState(state));
 1147    }
 1148
 1149    #[cfg(any(test, feature = "test-support"))]
 1150    pub fn test(cx: &mut App) -> Arc<Self> {
 1151        use fs::Fs;
 1152        use node_runtime::NodeRuntime;
 1153        use session::Session;
 1154        use settings::SettingsStore;
 1155
 1156        if !cx.has_global::<SettingsStore>() {
 1157            let settings_store = SettingsStore::test(cx);
 1158            cx.set_global(settings_store);
 1159        }
 1160
 1161        let fs = fs::FakeFs::new(cx.background_executor().clone());
 1162        <dyn Fs>::set_global(fs.clone(), cx);
 1163        let languages = Arc::new(LanguageRegistry::test(cx.background_executor().clone()));
 1164        let clock = Arc::new(clock::FakeSystemClock::new());
 1165        let http_client = http_client::FakeHttpClient::with_404_response();
 1166        let client = Client::new(clock, http_client, cx);
 1167        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 1168        let user_store = cx.new(|cx| UserStore::new(client.clone(), cx));
 1169        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 1170
 1171        theme_settings::init(theme::LoadThemes::JustBase, cx);
 1172        client::init(&client, cx);
 1173
 1174        Arc::new(Self {
 1175            client,
 1176            fs,
 1177            languages,
 1178            user_store,
 1179            workspace_store,
 1180            node_runtime: NodeRuntime::unavailable(),
 1181            build_window_options: |_, _| Default::default(),
 1182            session,
 1183        })
 1184    }
 1185}
 1186
 1187struct DelayedDebouncedEditAction {
 1188    task: Option<Task<()>>,
 1189    cancel_channel: Option<oneshot::Sender<()>>,
 1190}
 1191
 1192impl DelayedDebouncedEditAction {
 1193    fn new() -> DelayedDebouncedEditAction {
 1194        DelayedDebouncedEditAction {
 1195            task: None,
 1196            cancel_channel: None,
 1197        }
 1198    }
 1199
 1200    fn fire_new<F>(
 1201        &mut self,
 1202        delay: Duration,
 1203        window: &mut Window,
 1204        cx: &mut Context<Workspace>,
 1205        func: F,
 1206    ) where
 1207        F: 'static
 1208            + Send
 1209            + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> Task<Result<()>>,
 1210    {
 1211        if let Some(channel) = self.cancel_channel.take() {
 1212            _ = channel.send(());
 1213        }
 1214
 1215        let (sender, mut receiver) = oneshot::channel::<()>();
 1216        self.cancel_channel = Some(sender);
 1217
 1218        let previous_task = self.task.take();
 1219        self.task = Some(cx.spawn_in(window, async move |workspace, cx| {
 1220            let mut timer = cx.background_executor().timer(delay).fuse();
 1221            if let Some(previous_task) = previous_task {
 1222                previous_task.await;
 1223            }
 1224
 1225            futures::select_biased! {
 1226                _ = receiver => return,
 1227                    _ = timer => {}
 1228            }
 1229
 1230            if let Some(result) = workspace
 1231                .update_in(cx, |workspace, window, cx| (func)(workspace, window, cx))
 1232                .log_err()
 1233            {
 1234                result.await.log_err();
 1235            }
 1236        }));
 1237    }
 1238}
 1239
 1240pub enum Event {
 1241    PaneAdded(Entity<Pane>),
 1242    PaneRemoved,
 1243    ItemAdded {
 1244        item: Box<dyn ItemHandle>,
 1245    },
 1246    ActiveItemChanged,
 1247    ItemRemoved {
 1248        item_id: EntityId,
 1249    },
 1250    UserSavedItem {
 1251        pane: WeakEntity<Pane>,
 1252        item: Box<dyn WeakItemHandle>,
 1253        save_intent: SaveIntent,
 1254    },
 1255    ContactRequestedJoin(u64),
 1256    WorkspaceCreated(WeakEntity<Workspace>),
 1257    OpenBundledFile {
 1258        text: Cow<'static, str>,
 1259        title: &'static str,
 1260        language: &'static str,
 1261    },
 1262    ZoomChanged,
 1263    ModalOpened,
 1264    Activate,
 1265    PanelAdded(AnyView),
 1266}
 1267
 1268#[derive(Debug, Clone)]
 1269pub enum OpenVisible {
 1270    All,
 1271    None,
 1272    OnlyFiles,
 1273    OnlyDirectories,
 1274}
 1275
 1276enum WorkspaceLocation {
 1277    // Valid local paths or SSH project to serialize
 1278    Location(SerializedWorkspaceLocation, PathList),
 1279    // No valid location found hence clear session id
 1280    DetachFromSession,
 1281    // No valid location found to serialize
 1282    None,
 1283}
 1284
 1285type PromptForNewPath = Box<
 1286    dyn Fn(
 1287        &mut Workspace,
 1288        DirectoryLister,
 1289        Option<String>,
 1290        &mut Window,
 1291        &mut Context<Workspace>,
 1292    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1293>;
 1294
 1295type PromptForOpenPath = Box<
 1296    dyn Fn(
 1297        &mut Workspace,
 1298        DirectoryLister,
 1299        &mut Window,
 1300        &mut Context<Workspace>,
 1301    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1302>;
 1303
 1304#[derive(Default)]
 1305struct DispatchingKeystrokes {
 1306    dispatched: HashSet<Vec<Keystroke>>,
 1307    queue: VecDeque<Keystroke>,
 1308    task: Option<Shared<Task<()>>>,
 1309}
 1310
 1311/// Collects everything project-related for a certain window opened.
 1312/// In some way, is a counterpart of a window, as the [`WindowHandle`] could be downcast into `Workspace`.
 1313///
 1314/// A `Workspace` usually consists of 1 or more projects, a central pane group, 3 docks and a status bar.
 1315/// The `Workspace` owns everybody's state and serves as a default, "global context",
 1316/// that can be used to register a global action to be triggered from any place in the window.
 1317pub struct Workspace {
 1318    weak_self: WeakEntity<Self>,
 1319    workspace_actions: Vec<Box<dyn Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div>>,
 1320    zoomed: Option<AnyWeakView>,
 1321    previous_dock_drag_coordinates: Option<Point<Pixels>>,
 1322    zoomed_position: Option<DockPosition>,
 1323    center: PaneGroup,
 1324    left_dock: Entity<Dock>,
 1325    bottom_dock: Entity<Dock>,
 1326    right_dock: Entity<Dock>,
 1327    panes: Vec<Entity<Pane>>,
 1328    active_worktree_override: Option<WorktreeId>,
 1329    panes_by_item: HashMap<EntityId, WeakEntity<Pane>>,
 1330    active_pane: Entity<Pane>,
 1331    last_active_center_pane: Option<WeakEntity<Pane>>,
 1332    last_active_view_id: Option<proto::ViewId>,
 1333    status_bar: Entity<StatusBar>,
 1334    pub(crate) modal_layer: Entity<ModalLayer>,
 1335    toast_layer: Entity<ToastLayer>,
 1336    titlebar_item: Option<AnyView>,
 1337    notifications: Notifications,
 1338    suppressed_notifications: HashSet<NotificationId>,
 1339    project: Entity<Project>,
 1340    follower_states: HashMap<CollaboratorId, FollowerState>,
 1341    last_leaders_by_pane: HashMap<WeakEntity<Pane>, CollaboratorId>,
 1342    window_edited: bool,
 1343    last_window_title: Option<String>,
 1344    dirty_items: HashMap<EntityId, Subscription>,
 1345    active_call: Option<(GlobalAnyActiveCall, Vec<Subscription>)>,
 1346    leader_updates_tx: mpsc::UnboundedSender<(PeerId, proto::UpdateFollowers)>,
 1347    database_id: Option<WorkspaceId>,
 1348    app_state: Arc<AppState>,
 1349    dispatching_keystrokes: Rc<RefCell<DispatchingKeystrokes>>,
 1350    _subscriptions: Vec<Subscription>,
 1351    _apply_leader_updates: Task<Result<()>>,
 1352    _observe_current_user: Task<Result<()>>,
 1353    _schedule_serialize_workspace: Option<Task<()>>,
 1354    _serialize_workspace_task: Option<Task<()>>,
 1355    _schedule_serialize_ssh_paths: Option<Task<()>>,
 1356    pane_history_timestamp: Arc<AtomicUsize>,
 1357    bounds: Bounds<Pixels>,
 1358    pub centered_layout: bool,
 1359    bounds_save_task_queued: Option<Task<()>>,
 1360    on_prompt_for_new_path: Option<PromptForNewPath>,
 1361    on_prompt_for_open_path: Option<PromptForOpenPath>,
 1362    terminal_provider: Option<Box<dyn TerminalProvider>>,
 1363    debugger_provider: Option<Arc<dyn DebuggerProvider>>,
 1364    serializable_items_tx: UnboundedSender<Box<dyn SerializableItemHandle>>,
 1365    _items_serializer: Task<Result<()>>,
 1366    session_id: Option<String>,
 1367    scheduled_tasks: Vec<Task<()>>,
 1368    last_open_dock_positions: Vec<DockPosition>,
 1369    removing: bool,
 1370    open_in_dev_container: bool,
 1371    _dev_container_task: Option<Task<Result<()>>>,
 1372    _panels_task: Option<Task<Result<()>>>,
 1373    sidebar_focus_handle: Option<FocusHandle>,
 1374    multi_workspace: Option<WeakEntity<MultiWorkspace>>,
 1375}
 1376
 1377impl EventEmitter<Event> for Workspace {}
 1378
 1379#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
 1380pub struct ViewId {
 1381    pub creator: CollaboratorId,
 1382    pub id: u64,
 1383}
 1384
 1385pub struct FollowerState {
 1386    center_pane: Entity<Pane>,
 1387    dock_pane: Option<Entity<Pane>>,
 1388    active_view_id: Option<ViewId>,
 1389    items_by_leader_view_id: HashMap<ViewId, FollowerView>,
 1390}
 1391
 1392struct FollowerView {
 1393    view: Box<dyn FollowableItemHandle>,
 1394    location: Option<proto::PanelId>,
 1395}
 1396
 1397#[derive(Debug, Clone, Copy, PartialEq, Eq, Default)]
 1398pub enum OpenMode {
 1399    /// Open the workspace in a new window.
 1400    NewWindow,
 1401    /// Add to the window's multi workspace without activating it (used during deserialization).
 1402    Add,
 1403    /// Add to the window's multi workspace and activate it.
 1404    #[default]
 1405    Activate,
 1406}
 1407
 1408impl Workspace {
 1409    pub fn new(
 1410        workspace_id: Option<WorkspaceId>,
 1411        project: Entity<Project>,
 1412        app_state: Arc<AppState>,
 1413        window: &mut Window,
 1414        cx: &mut Context<Self>,
 1415    ) -> Self {
 1416        if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1417            cx.subscribe(&trusted_worktrees, |_, worktrees_store, e, cx| {
 1418                if let TrustedWorktreesEvent::Trusted(..) = e {
 1419                    // Do not persist auto trusted worktrees
 1420                    if !ProjectSettings::get_global(cx).session.trust_all_worktrees {
 1421                        worktrees_store.update(cx, |worktrees_store, cx| {
 1422                            worktrees_store.schedule_serialization(
 1423                                cx,
 1424                                |new_trusted_worktrees, cx| {
 1425                                    let timeout =
 1426                                        cx.background_executor().timer(SERIALIZATION_THROTTLE_TIME);
 1427                                    let db = WorkspaceDb::global(cx);
 1428                                    cx.background_spawn(async move {
 1429                                        timeout.await;
 1430                                        db.save_trusted_worktrees(new_trusted_worktrees)
 1431                                            .await
 1432                                            .log_err();
 1433                                    })
 1434                                },
 1435                            )
 1436                        });
 1437                    }
 1438                }
 1439            })
 1440            .detach();
 1441
 1442            cx.observe_global::<SettingsStore>(|_, cx| {
 1443                if ProjectSettings::get_global(cx).session.trust_all_worktrees {
 1444                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1445                        trusted_worktrees.update(cx, |trusted_worktrees, cx| {
 1446                            trusted_worktrees.auto_trust_all(cx);
 1447                        })
 1448                    }
 1449                }
 1450            })
 1451            .detach();
 1452        }
 1453
 1454        cx.subscribe_in(&project, window, move |this, _, event, window, cx| {
 1455            match event {
 1456                project::Event::RemoteIdChanged(_) => {
 1457                    this.update_window_title(window, cx);
 1458                }
 1459
 1460                project::Event::CollaboratorLeft(peer_id) => {
 1461                    this.collaborator_left(*peer_id, window, cx);
 1462                }
 1463
 1464                &project::Event::WorktreeRemoved(_) => {
 1465                    this.update_window_title(window, cx);
 1466                    this.serialize_workspace(window, cx);
 1467                    this.update_history(cx);
 1468                }
 1469
 1470                &project::Event::WorktreeAdded(id) => {
 1471                    this.update_window_title(window, cx);
 1472                    if this
 1473                        .project()
 1474                        .read(cx)
 1475                        .worktree_for_id(id, cx)
 1476                        .is_some_and(|wt| wt.read(cx).is_visible())
 1477                    {
 1478                        this.serialize_workspace(window, cx);
 1479                        this.update_history(cx);
 1480                    }
 1481                }
 1482                project::Event::WorktreeUpdatedEntries(..) => {
 1483                    this.update_window_title(window, cx);
 1484                    this.serialize_workspace(window, cx);
 1485                }
 1486
 1487                project::Event::DisconnectedFromHost => {
 1488                    this.update_window_edited(window, cx);
 1489                    let leaders_to_unfollow =
 1490                        this.follower_states.keys().copied().collect::<Vec<_>>();
 1491                    for leader_id in leaders_to_unfollow {
 1492                        this.unfollow(leader_id, window, cx);
 1493                    }
 1494                }
 1495
 1496                project::Event::DisconnectedFromRemote {
 1497                    server_not_running: _,
 1498                } => {
 1499                    this.update_window_edited(window, cx);
 1500                }
 1501
 1502                project::Event::Closed => {
 1503                    window.remove_window();
 1504                }
 1505
 1506                project::Event::DeletedEntry(_, entry_id) => {
 1507                    for pane in this.panes.iter() {
 1508                        pane.update(cx, |pane, cx| {
 1509                            pane.handle_deleted_project_item(*entry_id, window, cx)
 1510                        });
 1511                    }
 1512                }
 1513
 1514                project::Event::Toast {
 1515                    notification_id,
 1516                    message,
 1517                    link,
 1518                } => this.show_notification(
 1519                    NotificationId::named(notification_id.clone()),
 1520                    cx,
 1521                    |cx| {
 1522                        let mut notification = MessageNotification::new(message.clone(), cx);
 1523                        if let Some(link) = link {
 1524                            notification = notification
 1525                                .more_info_message(link.label)
 1526                                .more_info_url(link.url);
 1527                        }
 1528
 1529                        cx.new(|_| notification)
 1530                    },
 1531                ),
 1532
 1533                project::Event::HideToast { notification_id } => {
 1534                    this.dismiss_notification(&NotificationId::named(notification_id.clone()), cx)
 1535                }
 1536
 1537                project::Event::LanguageServerPrompt(request) => {
 1538                    struct LanguageServerPrompt;
 1539
 1540                    this.show_notification(
 1541                        NotificationId::composite::<LanguageServerPrompt>(request.id),
 1542                        cx,
 1543                        |cx| {
 1544                            cx.new(|cx| {
 1545                                notifications::LanguageServerPrompt::new(request.clone(), cx)
 1546                            })
 1547                        },
 1548                    );
 1549                }
 1550
 1551                project::Event::AgentLocationChanged => {
 1552                    this.handle_agent_location_changed(window, cx)
 1553                }
 1554
 1555                _ => {}
 1556            }
 1557            cx.notify()
 1558        })
 1559        .detach();
 1560
 1561        cx.subscribe_in(
 1562            &project.read(cx).breakpoint_store(),
 1563            window,
 1564            |workspace, _, event, window, cx| match event {
 1565                BreakpointStoreEvent::BreakpointsUpdated(_, _)
 1566                | BreakpointStoreEvent::BreakpointsCleared(_) => {
 1567                    workspace.serialize_workspace(window, cx);
 1568                }
 1569                BreakpointStoreEvent::SetDebugLine | BreakpointStoreEvent::ClearDebugLines => {}
 1570            },
 1571        )
 1572        .detach();
 1573        if let Some(toolchain_store) = project.read(cx).toolchain_store() {
 1574            cx.subscribe_in(
 1575                &toolchain_store,
 1576                window,
 1577                |workspace, _, event, window, cx| match event {
 1578                    ToolchainStoreEvent::CustomToolchainsModified => {
 1579                        workspace.serialize_workspace(window, cx);
 1580                    }
 1581                    _ => {}
 1582                },
 1583            )
 1584            .detach();
 1585        }
 1586
 1587        cx.on_focus_lost(window, |this, window, cx| {
 1588            let focus_handle = this.focus_handle(cx);
 1589            window.focus(&focus_handle, cx);
 1590        })
 1591        .detach();
 1592
 1593        let weak_handle = cx.entity().downgrade();
 1594        let pane_history_timestamp = Arc::new(AtomicUsize::new(0));
 1595
 1596        let center_pane = cx.new(|cx| {
 1597            let mut center_pane = Pane::new(
 1598                weak_handle.clone(),
 1599                project.clone(),
 1600                pane_history_timestamp.clone(),
 1601                None,
 1602                NewFile.boxed_clone(),
 1603                true,
 1604                window,
 1605                cx,
 1606            );
 1607            center_pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 1608            center_pane.set_should_display_welcome_page(true);
 1609            center_pane
 1610        });
 1611        cx.subscribe_in(&center_pane, window, Self::handle_pane_event)
 1612            .detach();
 1613
 1614        window.focus(&center_pane.focus_handle(cx), cx);
 1615
 1616        cx.emit(Event::PaneAdded(center_pane.clone()));
 1617
 1618        let any_window_handle = window.window_handle();
 1619        app_state.workspace_store.update(cx, |store, _| {
 1620            store
 1621                .workspaces
 1622                .insert((any_window_handle, weak_handle.clone()));
 1623        });
 1624
 1625        let mut current_user = app_state.user_store.read(cx).watch_current_user();
 1626        let mut connection_status = app_state.client.status();
 1627        let _observe_current_user = cx.spawn_in(window, async move |this, cx| {
 1628            current_user.next().await;
 1629            connection_status.next().await;
 1630            let mut stream =
 1631                Stream::map(current_user, drop).merge(Stream::map(connection_status, drop));
 1632
 1633            while stream.recv().await.is_some() {
 1634                this.update(cx, |_, cx| cx.notify())?;
 1635            }
 1636            anyhow::Ok(())
 1637        });
 1638
 1639        // All leader updates are enqueued and then processed in a single task, so
 1640        // that each asynchronous operation can be run in order.
 1641        let (leader_updates_tx, mut leader_updates_rx) =
 1642            mpsc::unbounded::<(PeerId, proto::UpdateFollowers)>();
 1643        let _apply_leader_updates = cx.spawn_in(window, async move |this, cx| {
 1644            while let Some((leader_id, update)) = leader_updates_rx.next().await {
 1645                Self::process_leader_update(&this, leader_id, update, cx)
 1646                    .await
 1647                    .log_err();
 1648            }
 1649
 1650            Ok(())
 1651        });
 1652
 1653        cx.emit(Event::WorkspaceCreated(weak_handle.clone()));
 1654        let modal_layer = cx.new(|_| ModalLayer::new());
 1655        let toast_layer = cx.new(|_| ToastLayer::new());
 1656        cx.subscribe(
 1657            &modal_layer,
 1658            |_, _, _: &modal_layer::ModalOpenedEvent, cx| {
 1659                cx.emit(Event::ModalOpened);
 1660            },
 1661        )
 1662        .detach();
 1663
 1664        let left_dock = Dock::new(DockPosition::Left, modal_layer.clone(), window, cx);
 1665        let bottom_dock = Dock::new(DockPosition::Bottom, modal_layer.clone(), window, cx);
 1666        let right_dock = Dock::new(DockPosition::Right, modal_layer.clone(), window, cx);
 1667        let left_dock_buttons = cx.new(|cx| PanelButtons::new(left_dock.clone(), cx));
 1668        let bottom_dock_buttons = cx.new(|cx| PanelButtons::new(bottom_dock.clone(), cx));
 1669        let right_dock_buttons = cx.new(|cx| PanelButtons::new(right_dock.clone(), cx));
 1670        let multi_workspace = window
 1671            .root::<MultiWorkspace>()
 1672            .flatten()
 1673            .map(|mw| mw.downgrade());
 1674        let status_bar = cx.new(|cx| {
 1675            let mut status_bar =
 1676                StatusBar::new(&center_pane.clone(), multi_workspace.clone(), window, cx);
 1677            status_bar.add_left_item(left_dock_buttons, window, cx);
 1678            status_bar.add_right_item(right_dock_buttons, window, cx);
 1679            status_bar.add_right_item(bottom_dock_buttons, window, cx);
 1680            status_bar
 1681        });
 1682
 1683        let session_id = app_state.session.read(cx).id().to_owned();
 1684
 1685        let mut active_call = None;
 1686        if let Some(call) = GlobalAnyActiveCall::try_global(cx).cloned() {
 1687            let subscriptions =
 1688                vec![
 1689                    call.0
 1690                        .subscribe(window, cx, Box::new(Self::on_active_call_event)),
 1691                ];
 1692            active_call = Some((call, subscriptions));
 1693        }
 1694
 1695        let (serializable_items_tx, serializable_items_rx) =
 1696            mpsc::unbounded::<Box<dyn SerializableItemHandle>>();
 1697        let _items_serializer = cx.spawn_in(window, async move |this, cx| {
 1698            Self::serialize_items(&this, serializable_items_rx, cx).await
 1699        });
 1700
 1701        let subscriptions = vec![
 1702            cx.observe_window_activation(window, Self::on_window_activation_changed),
 1703            cx.observe_window_bounds(window, move |this, window, cx| {
 1704                if this.bounds_save_task_queued.is_some() {
 1705                    return;
 1706                }
 1707                this.bounds_save_task_queued = Some(cx.spawn_in(window, async move |this, cx| {
 1708                    cx.background_executor()
 1709                        .timer(Duration::from_millis(100))
 1710                        .await;
 1711                    this.update_in(cx, |this, window, cx| {
 1712                        this.save_window_bounds(window, cx).detach();
 1713                        this.bounds_save_task_queued.take();
 1714                    })
 1715                    .ok();
 1716                }));
 1717                cx.notify();
 1718            }),
 1719            cx.observe_window_appearance(window, |_, window, cx| {
 1720                let window_appearance = window.appearance();
 1721
 1722                *SystemAppearance::global_mut(cx) = SystemAppearance(window_appearance.into());
 1723
 1724                theme_settings::reload_theme(cx);
 1725                theme_settings::reload_icon_theme(cx);
 1726            }),
 1727            cx.on_release({
 1728                let weak_handle = weak_handle.clone();
 1729                move |this, cx| {
 1730                    this.app_state.workspace_store.update(cx, move |store, _| {
 1731                        store.workspaces.retain(|(_, weak)| weak != &weak_handle);
 1732                    })
 1733                }
 1734            }),
 1735        ];
 1736
 1737        cx.defer_in(window, move |this, window, cx| {
 1738            this.update_window_title(window, cx);
 1739            this.show_initial_notifications(cx);
 1740        });
 1741
 1742        let mut center = PaneGroup::new(center_pane.clone());
 1743        center.set_is_center(true);
 1744        center.mark_positions(cx);
 1745
 1746        Workspace {
 1747            weak_self: weak_handle.clone(),
 1748            zoomed: None,
 1749            zoomed_position: None,
 1750            previous_dock_drag_coordinates: None,
 1751            center,
 1752            panes: vec![center_pane.clone()],
 1753            panes_by_item: Default::default(),
 1754            active_pane: center_pane.clone(),
 1755            last_active_center_pane: Some(center_pane.downgrade()),
 1756            last_active_view_id: None,
 1757            status_bar,
 1758            modal_layer,
 1759            toast_layer,
 1760            titlebar_item: None,
 1761            active_worktree_override: None,
 1762            notifications: Notifications::default(),
 1763            suppressed_notifications: HashSet::default(),
 1764            left_dock,
 1765            bottom_dock,
 1766            right_dock,
 1767            _panels_task: None,
 1768            project: project.clone(),
 1769            follower_states: Default::default(),
 1770            last_leaders_by_pane: Default::default(),
 1771            dispatching_keystrokes: Default::default(),
 1772            window_edited: false,
 1773            last_window_title: None,
 1774            dirty_items: Default::default(),
 1775            active_call,
 1776            database_id: workspace_id,
 1777            app_state,
 1778            _observe_current_user,
 1779            _apply_leader_updates,
 1780            _schedule_serialize_workspace: None,
 1781            _serialize_workspace_task: None,
 1782            _schedule_serialize_ssh_paths: None,
 1783            leader_updates_tx,
 1784            _subscriptions: subscriptions,
 1785            pane_history_timestamp,
 1786            workspace_actions: Default::default(),
 1787            // This data will be incorrect, but it will be overwritten by the time it needs to be used.
 1788            bounds: Default::default(),
 1789            centered_layout: false,
 1790            bounds_save_task_queued: None,
 1791            on_prompt_for_new_path: None,
 1792            on_prompt_for_open_path: None,
 1793            terminal_provider: None,
 1794            debugger_provider: None,
 1795            serializable_items_tx,
 1796            _items_serializer,
 1797            session_id: Some(session_id),
 1798
 1799            scheduled_tasks: Vec::new(),
 1800            last_open_dock_positions: Vec::new(),
 1801            removing: false,
 1802            sidebar_focus_handle: None,
 1803            multi_workspace,
 1804            open_in_dev_container: false,
 1805            _dev_container_task: None,
 1806        }
 1807    }
 1808
 1809    pub fn new_local(
 1810        abs_paths: Vec<PathBuf>,
 1811        app_state: Arc<AppState>,
 1812        requesting_window: Option<WindowHandle<MultiWorkspace>>,
 1813        env: Option<HashMap<String, String>>,
 1814        init: Option<Box<dyn FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send>>,
 1815        open_mode: OpenMode,
 1816        cx: &mut App,
 1817    ) -> Task<anyhow::Result<OpenResult>> {
 1818        let project_handle = Project::local(
 1819            app_state.client.clone(),
 1820            app_state.node_runtime.clone(),
 1821            app_state.user_store.clone(),
 1822            app_state.languages.clone(),
 1823            app_state.fs.clone(),
 1824            env,
 1825            Default::default(),
 1826            cx,
 1827        );
 1828
 1829        let db = WorkspaceDb::global(cx);
 1830        let kvp = db::kvp::KeyValueStore::global(cx);
 1831        cx.spawn(async move |cx| {
 1832            let mut paths_to_open = Vec::with_capacity(abs_paths.len());
 1833            for path in abs_paths.into_iter() {
 1834                if let Some(canonical) = app_state.fs.canonicalize(&path).await.ok() {
 1835                    paths_to_open.push(canonical)
 1836                } else {
 1837                    paths_to_open.push(path)
 1838                }
 1839            }
 1840
 1841            let serialized_workspace = db.workspace_for_roots(paths_to_open.as_slice());
 1842
 1843            if let Some(paths) = serialized_workspace.as_ref().map(|ws| &ws.paths) {
 1844                paths_to_open = paths.ordered_paths().cloned().collect();
 1845                if !paths.is_lexicographically_ordered() {
 1846                    project_handle.update(cx, |project, cx| {
 1847                        project.set_worktrees_reordered(true, cx);
 1848                    });
 1849                }
 1850            }
 1851
 1852            // Get project paths for all of the abs_paths
 1853            let mut project_paths: Vec<(PathBuf, Option<ProjectPath>)> =
 1854                Vec::with_capacity(paths_to_open.len());
 1855
 1856            for path in paths_to_open.into_iter() {
 1857                if let Some((_, project_entry)) = cx
 1858                    .update(|cx| {
 1859                        Workspace::project_path_for_path(project_handle.clone(), &path, true, cx)
 1860                    })
 1861                    .await
 1862                    .log_err()
 1863                {
 1864                    project_paths.push((path, Some(project_entry)));
 1865                } else {
 1866                    project_paths.push((path, None));
 1867                }
 1868            }
 1869
 1870            let workspace_id = if let Some(serialized_workspace) = serialized_workspace.as_ref() {
 1871                serialized_workspace.id
 1872            } else {
 1873                db.next_id().await.unwrap_or_else(|_| Default::default())
 1874            };
 1875
 1876            let toolchains = db.toolchains(workspace_id).await?;
 1877
 1878            for (toolchain, worktree_path, path) in toolchains {
 1879                let toolchain_path = PathBuf::from(toolchain.path.clone().to_string());
 1880                let Some(worktree_id) = project_handle.read_with(cx, |this, cx| {
 1881                    this.find_worktree(&worktree_path, cx)
 1882                        .and_then(|(worktree, rel_path)| {
 1883                            if rel_path.is_empty() {
 1884                                Some(worktree.read(cx).id())
 1885                            } else {
 1886                                None
 1887                            }
 1888                        })
 1889                }) else {
 1890                    // We did not find a worktree with a given path, but that's whatever.
 1891                    continue;
 1892                };
 1893                if !app_state.fs.is_file(toolchain_path.as_path()).await {
 1894                    continue;
 1895                }
 1896
 1897                project_handle
 1898                    .update(cx, |this, cx| {
 1899                        this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 1900                    })
 1901                    .await;
 1902            }
 1903            if let Some(workspace) = serialized_workspace.as_ref() {
 1904                project_handle.update(cx, |this, cx| {
 1905                    for (scope, toolchains) in &workspace.user_toolchains {
 1906                        for toolchain in toolchains {
 1907                            this.add_toolchain(toolchain.clone(), scope.clone(), cx);
 1908                        }
 1909                    }
 1910                });
 1911            }
 1912
 1913            let window_to_replace = match open_mode {
 1914                OpenMode::NewWindow => None,
 1915                _ => requesting_window,
 1916            };
 1917
 1918            let (window, workspace): (WindowHandle<MultiWorkspace>, Entity<Workspace>) =
 1919                if let Some(window) = window_to_replace {
 1920                    let centered_layout = serialized_workspace
 1921                        .as_ref()
 1922                        .map(|w| w.centered_layout)
 1923                        .unwrap_or(false);
 1924
 1925                    let workspace = window.update(cx, |multi_workspace, window, cx| {
 1926                        let workspace = cx.new(|cx| {
 1927                            let mut workspace = Workspace::new(
 1928                                Some(workspace_id),
 1929                                project_handle.clone(),
 1930                                app_state.clone(),
 1931                                window,
 1932                                cx,
 1933                            );
 1934
 1935                            workspace.centered_layout = centered_layout;
 1936
 1937                            // Call init callback to add items before window renders
 1938                            if let Some(init) = init {
 1939                                init(&mut workspace, window, cx);
 1940                            }
 1941
 1942                            workspace
 1943                        });
 1944                        match open_mode {
 1945                            OpenMode::Activate => {
 1946                                multi_workspace.activate(workspace.clone(), window, cx);
 1947                            }
 1948                            OpenMode::Add => {
 1949                                multi_workspace.add(workspace.clone(), &*window, cx);
 1950                            }
 1951                            OpenMode::NewWindow => {
 1952                                unreachable!()
 1953                            }
 1954                        }
 1955                        workspace
 1956                    })?;
 1957                    (window, workspace)
 1958                } else {
 1959                    let window_bounds_override = window_bounds_env_override();
 1960
 1961                    let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 1962                        (Some(WindowBounds::Windowed(bounds)), None)
 1963                    } else if let Some(workspace) = serialized_workspace.as_ref()
 1964                        && let Some(display) = workspace.display
 1965                        && let Some(bounds) = workspace.window_bounds.as_ref()
 1966                    {
 1967                        // Reopening an existing workspace - restore its saved bounds
 1968                        (Some(bounds.0), Some(display))
 1969                    } else if let Some((display, bounds)) =
 1970                        persistence::read_default_window_bounds(&kvp)
 1971                    {
 1972                        // New or empty workspace - use the last known window bounds
 1973                        (Some(bounds), Some(display))
 1974                    } else {
 1975                        // New window - let GPUI's default_bounds() handle cascading
 1976                        (None, None)
 1977                    };
 1978
 1979                    // Use the serialized workspace to construct the new window
 1980                    let mut options = cx.update(|cx| (app_state.build_window_options)(display, cx));
 1981                    options.window_bounds = window_bounds;
 1982                    let centered_layout = serialized_workspace
 1983                        .as_ref()
 1984                        .map(|w| w.centered_layout)
 1985                        .unwrap_or(false);
 1986                    let window = cx.open_window(options, {
 1987                        let app_state = app_state.clone();
 1988                        let project_handle = project_handle.clone();
 1989                        move |window, cx| {
 1990                            let workspace = cx.new(|cx| {
 1991                                let mut workspace = Workspace::new(
 1992                                    Some(workspace_id),
 1993                                    project_handle,
 1994                                    app_state,
 1995                                    window,
 1996                                    cx,
 1997                                );
 1998                                workspace.centered_layout = centered_layout;
 1999
 2000                                // Call init callback to add items before window renders
 2001                                if let Some(init) = init {
 2002                                    init(&mut workspace, window, cx);
 2003                                }
 2004
 2005                                workspace
 2006                            });
 2007                            cx.new(|cx| MultiWorkspace::new(workspace, window, cx))
 2008                        }
 2009                    })?;
 2010                    let workspace =
 2011                        window.update(cx, |multi_workspace: &mut MultiWorkspace, _, _cx| {
 2012                            multi_workspace.workspace().clone()
 2013                        })?;
 2014                    (window, workspace)
 2015                };
 2016
 2017            notify_if_database_failed(window, cx);
 2018            // Check if this is an empty workspace (no paths to open)
 2019            // An empty workspace is one where project_paths is empty
 2020            let is_empty_workspace = project_paths.is_empty();
 2021            // Check if serialized workspace has paths before it's moved
 2022            let serialized_workspace_has_paths = serialized_workspace
 2023                .as_ref()
 2024                .map(|ws| !ws.paths.is_empty())
 2025                .unwrap_or(false);
 2026
 2027            let opened_items = window
 2028                .update(cx, |_, window, cx| {
 2029                    workspace.update(cx, |_workspace: &mut Workspace, cx| {
 2030                        open_items(serialized_workspace, project_paths, window, cx)
 2031                    })
 2032                })?
 2033                .await
 2034                .unwrap_or_default();
 2035
 2036            // Restore default dock state for empty workspaces
 2037            // Only restore if:
 2038            // 1. This is an empty workspace (no paths), AND
 2039            // 2. The serialized workspace either doesn't exist or has no paths
 2040            if is_empty_workspace && !serialized_workspace_has_paths {
 2041                if let Some(default_docks) = persistence::read_default_dock_state(&kvp) {
 2042                    window
 2043                        .update(cx, |_, window, cx| {
 2044                            workspace.update(cx, |workspace, cx| {
 2045                                for (dock, serialized_dock) in [
 2046                                    (&workspace.right_dock, &default_docks.right),
 2047                                    (&workspace.left_dock, &default_docks.left),
 2048                                    (&workspace.bottom_dock, &default_docks.bottom),
 2049                                ] {
 2050                                    dock.update(cx, |dock, cx| {
 2051                                        dock.serialized_dock = Some(serialized_dock.clone());
 2052                                        dock.restore_state(window, cx);
 2053                                    });
 2054                                }
 2055                                cx.notify();
 2056                            });
 2057                        })
 2058                        .log_err();
 2059                }
 2060            }
 2061
 2062            window
 2063                .update(cx, |_, _window, cx| {
 2064                    workspace.update(cx, |this: &mut Workspace, cx| {
 2065                        this.update_history(cx);
 2066                    });
 2067                })
 2068                .log_err();
 2069            Ok(OpenResult {
 2070                window,
 2071                workspace,
 2072                opened_items,
 2073            })
 2074        })
 2075    }
 2076
 2077    pub fn project_group_key(&self, cx: &App) -> ProjectGroupKey {
 2078        self.project.read(cx).project_group_key(cx)
 2079    }
 2080
 2081    pub fn weak_handle(&self) -> WeakEntity<Self> {
 2082        self.weak_self.clone()
 2083    }
 2084
 2085    pub fn left_dock(&self) -> &Entity<Dock> {
 2086        &self.left_dock
 2087    }
 2088
 2089    pub fn bottom_dock(&self) -> &Entity<Dock> {
 2090        &self.bottom_dock
 2091    }
 2092
 2093    pub fn set_bottom_dock_layout(
 2094        &mut self,
 2095        layout: BottomDockLayout,
 2096        window: &mut Window,
 2097        cx: &mut Context<Self>,
 2098    ) {
 2099        let fs = self.project().read(cx).fs();
 2100        settings::update_settings_file(fs.clone(), cx, move |content, _cx| {
 2101            content.workspace.bottom_dock_layout = Some(layout);
 2102        });
 2103
 2104        cx.notify();
 2105        self.serialize_workspace(window, cx);
 2106    }
 2107
 2108    pub fn right_dock(&self) -> &Entity<Dock> {
 2109        &self.right_dock
 2110    }
 2111
 2112    pub fn all_docks(&self) -> [&Entity<Dock>; 3] {
 2113        [&self.left_dock, &self.bottom_dock, &self.right_dock]
 2114    }
 2115
 2116    pub fn capture_dock_state(&self, _window: &Window, cx: &App) -> DockStructure {
 2117        let left_dock = self.left_dock.read(cx);
 2118        let left_visible = left_dock.is_open();
 2119        let left_active_panel = left_dock
 2120            .active_panel()
 2121            .map(|panel| panel.persistent_name().to_string());
 2122        // `zoomed_position` is kept in sync with individual panel zoom state
 2123        // by the dock code in `Dock::new` and `Dock::add_panel`.
 2124        let left_dock_zoom = self.zoomed_position == Some(DockPosition::Left);
 2125
 2126        let right_dock = self.right_dock.read(cx);
 2127        let right_visible = right_dock.is_open();
 2128        let right_active_panel = right_dock
 2129            .active_panel()
 2130            .map(|panel| panel.persistent_name().to_string());
 2131        let right_dock_zoom = self.zoomed_position == Some(DockPosition::Right);
 2132
 2133        let bottom_dock = self.bottom_dock.read(cx);
 2134        let bottom_visible = bottom_dock.is_open();
 2135        let bottom_active_panel = bottom_dock
 2136            .active_panel()
 2137            .map(|panel| panel.persistent_name().to_string());
 2138        let bottom_dock_zoom = self.zoomed_position == Some(DockPosition::Bottom);
 2139
 2140        DockStructure {
 2141            left: DockData {
 2142                visible: left_visible,
 2143                active_panel: left_active_panel,
 2144                zoom: left_dock_zoom,
 2145            },
 2146            right: DockData {
 2147                visible: right_visible,
 2148                active_panel: right_active_panel,
 2149                zoom: right_dock_zoom,
 2150            },
 2151            bottom: DockData {
 2152                visible: bottom_visible,
 2153                active_panel: bottom_active_panel,
 2154                zoom: bottom_dock_zoom,
 2155            },
 2156        }
 2157    }
 2158
 2159    pub fn set_dock_structure(
 2160        &self,
 2161        docks: DockStructure,
 2162        window: &mut Window,
 2163        cx: &mut Context<Self>,
 2164    ) {
 2165        for (dock, data) in [
 2166            (&self.left_dock, docks.left),
 2167            (&self.bottom_dock, docks.bottom),
 2168            (&self.right_dock, docks.right),
 2169        ] {
 2170            dock.update(cx, |dock, cx| {
 2171                dock.serialized_dock = Some(data);
 2172                dock.restore_state(window, cx);
 2173            });
 2174        }
 2175    }
 2176
 2177    pub fn open_item_abs_paths(&self, cx: &App) -> Vec<PathBuf> {
 2178        self.items(cx)
 2179            .filter_map(|item| {
 2180                let project_path = item.project_path(cx)?;
 2181                self.project.read(cx).absolute_path(&project_path, cx)
 2182            })
 2183            .collect()
 2184    }
 2185
 2186    pub fn dock_at_position(&self, position: DockPosition) -> &Entity<Dock> {
 2187        match position {
 2188            DockPosition::Left => &self.left_dock,
 2189            DockPosition::Bottom => &self.bottom_dock,
 2190            DockPosition::Right => &self.right_dock,
 2191        }
 2192    }
 2193
 2194    pub fn agent_panel_position(&self, cx: &App) -> Option<DockPosition> {
 2195        self.all_docks().into_iter().find_map(|dock| {
 2196            let dock = dock.read(cx);
 2197            dock.has_agent_panel(cx).then_some(dock.position())
 2198        })
 2199    }
 2200
 2201    pub fn panel_size_state<T: Panel>(&self, cx: &App) -> Option<dock::PanelSizeState> {
 2202        self.all_docks().into_iter().find_map(|dock| {
 2203            let dock = dock.read(cx);
 2204            let panel = dock.panel::<T>()?;
 2205            dock.stored_panel_size_state(&panel)
 2206        })
 2207    }
 2208
 2209    pub fn persisted_panel_size_state(
 2210        &self,
 2211        panel_key: &'static str,
 2212        cx: &App,
 2213    ) -> Option<dock::PanelSizeState> {
 2214        dock::Dock::load_persisted_size_state(self, panel_key, cx)
 2215    }
 2216
 2217    pub fn persist_panel_size_state(
 2218        &self,
 2219        panel_key: &str,
 2220        size_state: dock::PanelSizeState,
 2221        cx: &mut App,
 2222    ) {
 2223        let Some(workspace_id) = self
 2224            .database_id()
 2225            .map(|id| i64::from(id).to_string())
 2226            .or(self.session_id())
 2227        else {
 2228            return;
 2229        };
 2230
 2231        let kvp = db::kvp::KeyValueStore::global(cx);
 2232        let panel_key = panel_key.to_string();
 2233        cx.background_spawn(async move {
 2234            let scope = kvp.scoped(dock::PANEL_SIZE_STATE_KEY);
 2235            scope
 2236                .write(
 2237                    format!("{workspace_id}:{panel_key}"),
 2238                    serde_json::to_string(&size_state)?,
 2239                )
 2240                .await
 2241        })
 2242        .detach_and_log_err(cx);
 2243    }
 2244
 2245    pub fn set_panel_size_state<T: Panel>(
 2246        &mut self,
 2247        size_state: dock::PanelSizeState,
 2248        window: &mut Window,
 2249        cx: &mut Context<Self>,
 2250    ) -> bool {
 2251        let Some(panel) = self.panel::<T>(cx) else {
 2252            return false;
 2253        };
 2254
 2255        let dock = self.dock_at_position(panel.position(window, cx));
 2256        let did_set = dock.update(cx, |dock, cx| {
 2257            dock.set_panel_size_state(&panel, size_state, cx)
 2258        });
 2259
 2260        if did_set {
 2261            self.persist_panel_size_state(T::panel_key(), size_state, cx);
 2262        }
 2263
 2264        did_set
 2265    }
 2266
 2267    pub fn toggle_dock_panel_flexible_size(
 2268        &self,
 2269        dock: &Entity<Dock>,
 2270        panel: &dyn PanelHandle,
 2271        window: &mut Window,
 2272        cx: &mut App,
 2273    ) {
 2274        let position = dock.read(cx).position();
 2275        let current_size = self.dock_size(&dock.read(cx), window, cx);
 2276        let current_flex =
 2277            current_size.and_then(|size| self.dock_flex_for_size(position, size, window, cx));
 2278        dock.update(cx, |dock, cx| {
 2279            dock.toggle_panel_flexible_size(panel, current_size, current_flex, window, cx);
 2280        });
 2281    }
 2282
 2283    fn dock_size(&self, dock: &Dock, window: &Window, cx: &App) -> Option<Pixels> {
 2284        let panel = dock.active_panel()?;
 2285        let size_state = dock
 2286            .stored_panel_size_state(panel.as_ref())
 2287            .unwrap_or_default();
 2288        let position = dock.position();
 2289
 2290        let use_flex = panel.has_flexible_size(window, cx);
 2291
 2292        if position.axis() == Axis::Horizontal
 2293            && use_flex
 2294            && let Some(flex) = size_state.flex.or_else(|| self.default_dock_flex(position))
 2295        {
 2296            let workspace_width = self.bounds.size.width;
 2297            if workspace_width <= Pixels::ZERO {
 2298                return None;
 2299            }
 2300            let flex = flex.max(0.001);
 2301            let opposite = self.opposite_dock_panel_and_size_state(position, window, cx);
 2302            if let Some(opposite_flex) = opposite.as_ref().and_then(|(_, s)| s.flex) {
 2303                // Both docks are flex items sharing the full workspace width.
 2304                let total_flex = flex + 1.0 + opposite_flex;
 2305                return Some((flex / total_flex * workspace_width).max(RESIZE_HANDLE_SIZE));
 2306            } else {
 2307                // Opposite dock is fixed-width; flex items share (W - fixed).
 2308                let opposite_fixed = opposite
 2309                    .map(|(panel, s)| s.size.unwrap_or_else(|| panel.default_size(window, cx)))
 2310                    .unwrap_or_default();
 2311                let available = (workspace_width - opposite_fixed).max(RESIZE_HANDLE_SIZE);
 2312                return Some((flex / (flex + 1.0) * available).max(RESIZE_HANDLE_SIZE));
 2313            }
 2314        }
 2315
 2316        Some(
 2317            size_state
 2318                .size
 2319                .unwrap_or_else(|| panel.default_size(window, cx)),
 2320        )
 2321    }
 2322
 2323    pub fn dock_flex_for_size(
 2324        &self,
 2325        position: DockPosition,
 2326        size: Pixels,
 2327        window: &Window,
 2328        cx: &App,
 2329    ) -> Option<f32> {
 2330        if position.axis() != Axis::Horizontal {
 2331            return None;
 2332        }
 2333
 2334        let workspace_width = self.bounds.size.width;
 2335        if workspace_width <= Pixels::ZERO {
 2336            return None;
 2337        }
 2338
 2339        let opposite = self.opposite_dock_panel_and_size_state(position, window, cx);
 2340        if let Some(opposite_flex) = opposite.as_ref().and_then(|(_, s)| s.flex) {
 2341            let size = size.clamp(px(0.), workspace_width - px(1.));
 2342            Some((size * (1.0 + opposite_flex) / (workspace_width - size)).max(0.0))
 2343        } else {
 2344            let opposite_width = opposite
 2345                .map(|(panel, s)| s.size.unwrap_or_else(|| panel.default_size(window, cx)))
 2346                .unwrap_or_default();
 2347            let available = (workspace_width - opposite_width).max(RESIZE_HANDLE_SIZE);
 2348            let remaining = (available - size).max(px(1.));
 2349            Some((size / remaining).max(0.0))
 2350        }
 2351    }
 2352
 2353    fn opposite_dock_panel_and_size_state(
 2354        &self,
 2355        position: DockPosition,
 2356        window: &Window,
 2357        cx: &App,
 2358    ) -> Option<(Arc<dyn PanelHandle>, PanelSizeState)> {
 2359        let opposite_position = match position {
 2360            DockPosition::Left => DockPosition::Right,
 2361            DockPosition::Right => DockPosition::Left,
 2362            DockPosition::Bottom => return None,
 2363        };
 2364
 2365        let opposite_dock = self.dock_at_position(opposite_position).read(cx);
 2366        let panel = opposite_dock.visible_panel()?;
 2367        let mut size_state = opposite_dock
 2368            .stored_panel_size_state(panel.as_ref())
 2369            .unwrap_or_default();
 2370        if size_state.flex.is_none() && panel.has_flexible_size(window, cx) {
 2371            size_state.flex = self.default_dock_flex(opposite_position);
 2372        }
 2373        Some((panel.clone(), size_state))
 2374    }
 2375
 2376    pub fn default_dock_flex(&self, position: DockPosition) -> Option<f32> {
 2377        if position.axis() != Axis::Horizontal {
 2378            return None;
 2379        }
 2380
 2381        let pane = self.last_active_center_pane.clone()?.upgrade()?;
 2382        Some(self.center.width_fraction_for_pane(&pane).unwrap_or(1.0))
 2383    }
 2384
 2385    pub fn is_edited(&self) -> bool {
 2386        self.window_edited
 2387    }
 2388
 2389    pub fn add_panel<T: Panel>(
 2390        &mut self,
 2391        panel: Entity<T>,
 2392        window: &mut Window,
 2393        cx: &mut Context<Self>,
 2394    ) {
 2395        let focus_handle = panel.panel_focus_handle(cx);
 2396        cx.on_focus_in(&focus_handle, window, Self::handle_panel_focused)
 2397            .detach();
 2398
 2399        let dock_position = panel.position(window, cx);
 2400        let dock = self.dock_at_position(dock_position);
 2401        let any_panel = panel.to_any();
 2402        let persisted_size_state =
 2403            self.persisted_panel_size_state(T::panel_key(), cx)
 2404                .or_else(|| {
 2405                    load_legacy_panel_size(T::panel_key(), dock_position, self, cx).map(|size| {
 2406                        let state = dock::PanelSizeState {
 2407                            size: Some(size),
 2408                            flex: None,
 2409                        };
 2410                        self.persist_panel_size_state(T::panel_key(), state, cx);
 2411                        state
 2412                    })
 2413                });
 2414
 2415        dock.update(cx, |dock, cx| {
 2416            let index = dock.add_panel(panel.clone(), self.weak_self.clone(), window, cx);
 2417            if let Some(size_state) = persisted_size_state {
 2418                dock.set_panel_size_state(&panel, size_state, cx);
 2419            }
 2420            index
 2421        });
 2422
 2423        cx.emit(Event::PanelAdded(any_panel));
 2424    }
 2425
 2426    pub fn remove_panel<T: Panel>(
 2427        &mut self,
 2428        panel: &Entity<T>,
 2429        window: &mut Window,
 2430        cx: &mut Context<Self>,
 2431    ) {
 2432        for dock in [&self.left_dock, &self.bottom_dock, &self.right_dock] {
 2433            dock.update(cx, |dock, cx| dock.remove_panel(panel, window, cx));
 2434        }
 2435    }
 2436
 2437    pub fn status_bar(&self) -> &Entity<StatusBar> {
 2438        &self.status_bar
 2439    }
 2440
 2441    pub fn set_sidebar_focus_handle(&mut self, handle: Option<FocusHandle>) {
 2442        self.sidebar_focus_handle = handle;
 2443    }
 2444
 2445    pub fn status_bar_visible(&self, cx: &App) -> bool {
 2446        StatusBarSettings::get_global(cx).show
 2447    }
 2448
 2449    pub fn multi_workspace(&self) -> Option<&WeakEntity<MultiWorkspace>> {
 2450        self.multi_workspace.as_ref()
 2451    }
 2452
 2453    pub fn set_multi_workspace(
 2454        &mut self,
 2455        multi_workspace: WeakEntity<MultiWorkspace>,
 2456        cx: &mut App,
 2457    ) {
 2458        self.status_bar.update(cx, |status_bar, cx| {
 2459            status_bar.set_multi_workspace(multi_workspace.clone(), cx);
 2460        });
 2461        self.multi_workspace = Some(multi_workspace);
 2462    }
 2463
 2464    pub fn app_state(&self) -> &Arc<AppState> {
 2465        &self.app_state
 2466    }
 2467
 2468    pub fn set_panels_task(&mut self, task: Task<Result<()>>) {
 2469        self._panels_task = Some(task);
 2470    }
 2471
 2472    pub fn take_panels_task(&mut self) -> Option<Task<Result<()>>> {
 2473        self._panels_task.take()
 2474    }
 2475
 2476    pub fn user_store(&self) -> &Entity<UserStore> {
 2477        &self.app_state.user_store
 2478    }
 2479
 2480    pub fn project(&self) -> &Entity<Project> {
 2481        &self.project
 2482    }
 2483
 2484    pub fn path_style(&self, cx: &App) -> PathStyle {
 2485        self.project.read(cx).path_style(cx)
 2486    }
 2487
 2488    pub fn recently_activated_items(&self, cx: &App) -> HashMap<EntityId, usize> {
 2489        let mut history: HashMap<EntityId, usize> = HashMap::default();
 2490
 2491        for pane_handle in &self.panes {
 2492            let pane = pane_handle.read(cx);
 2493
 2494            for entry in pane.activation_history() {
 2495                history.insert(
 2496                    entry.entity_id,
 2497                    history
 2498                        .get(&entry.entity_id)
 2499                        .cloned()
 2500                        .unwrap_or(0)
 2501                        .max(entry.timestamp),
 2502                );
 2503            }
 2504        }
 2505
 2506        history
 2507    }
 2508
 2509    pub fn recent_active_item_by_type<T: 'static>(&self, cx: &App) -> Option<Entity<T>> {
 2510        let mut recent_item: Option<Entity<T>> = None;
 2511        let mut recent_timestamp = 0;
 2512        for pane_handle in &self.panes {
 2513            let pane = pane_handle.read(cx);
 2514            let item_map: HashMap<EntityId, &Box<dyn ItemHandle>> =
 2515                pane.items().map(|item| (item.item_id(), item)).collect();
 2516            for entry in pane.activation_history() {
 2517                if entry.timestamp > recent_timestamp
 2518                    && let Some(&item) = item_map.get(&entry.entity_id)
 2519                    && let Some(typed_item) = item.act_as::<T>(cx)
 2520                {
 2521                    recent_timestamp = entry.timestamp;
 2522                    recent_item = Some(typed_item);
 2523                }
 2524            }
 2525        }
 2526        recent_item
 2527    }
 2528
 2529    pub fn recent_navigation_history_iter(
 2530        &self,
 2531        cx: &App,
 2532    ) -> impl Iterator<Item = (ProjectPath, Option<PathBuf>)> + use<> {
 2533        let mut abs_paths_opened: HashMap<PathBuf, HashSet<ProjectPath>> = HashMap::default();
 2534        let mut history: HashMap<ProjectPath, (Option<PathBuf>, usize)> = HashMap::default();
 2535
 2536        for pane in &self.panes {
 2537            let pane = pane.read(cx);
 2538
 2539            pane.nav_history()
 2540                .for_each_entry(cx, &mut |entry, (project_path, fs_path)| {
 2541                    if let Some(fs_path) = &fs_path {
 2542                        abs_paths_opened
 2543                            .entry(fs_path.clone())
 2544                            .or_default()
 2545                            .insert(project_path.clone());
 2546                    }
 2547                    let timestamp = entry.timestamp;
 2548                    match history.entry(project_path) {
 2549                        hash_map::Entry::Occupied(mut entry) => {
 2550                            let (_, old_timestamp) = entry.get();
 2551                            if &timestamp > old_timestamp {
 2552                                entry.insert((fs_path, timestamp));
 2553                            }
 2554                        }
 2555                        hash_map::Entry::Vacant(entry) => {
 2556                            entry.insert((fs_path, timestamp));
 2557                        }
 2558                    }
 2559                });
 2560
 2561            if let Some(item) = pane.active_item()
 2562                && let Some(project_path) = item.project_path(cx)
 2563            {
 2564                let fs_path = self.project.read(cx).absolute_path(&project_path, cx);
 2565
 2566                if let Some(fs_path) = &fs_path {
 2567                    abs_paths_opened
 2568                        .entry(fs_path.clone())
 2569                        .or_default()
 2570                        .insert(project_path.clone());
 2571                }
 2572
 2573                history.insert(project_path, (fs_path, std::usize::MAX));
 2574            }
 2575        }
 2576
 2577        history
 2578            .into_iter()
 2579            .sorted_by_key(|(_, (_, order))| *order)
 2580            .map(|(project_path, (fs_path, _))| (project_path, fs_path))
 2581            .rev()
 2582            .filter(move |(history_path, abs_path)| {
 2583                let latest_project_path_opened = abs_path
 2584                    .as_ref()
 2585                    .and_then(|abs_path| abs_paths_opened.get(abs_path))
 2586                    .and_then(|project_paths| {
 2587                        project_paths
 2588                            .iter()
 2589                            .max_by(|b1, b2| b1.worktree_id.cmp(&b2.worktree_id))
 2590                    });
 2591
 2592                latest_project_path_opened.is_none_or(|path| path == history_path)
 2593            })
 2594    }
 2595
 2596    pub fn recent_navigation_history(
 2597        &self,
 2598        limit: Option<usize>,
 2599        cx: &App,
 2600    ) -> Vec<(ProjectPath, Option<PathBuf>)> {
 2601        self.recent_navigation_history_iter(cx)
 2602            .take(limit.unwrap_or(usize::MAX))
 2603            .collect()
 2604    }
 2605
 2606    pub fn clear_navigation_history(&mut self, _window: &mut Window, cx: &mut Context<Workspace>) {
 2607        for pane in &self.panes {
 2608            pane.update(cx, |pane, cx| pane.nav_history_mut().clear(cx));
 2609        }
 2610    }
 2611
 2612    fn navigate_history(
 2613        &mut self,
 2614        pane: WeakEntity<Pane>,
 2615        mode: NavigationMode,
 2616        window: &mut Window,
 2617        cx: &mut Context<Workspace>,
 2618    ) -> Task<Result<()>> {
 2619        self.navigate_history_impl(
 2620            pane,
 2621            mode,
 2622            window,
 2623            &mut |history, cx| history.pop(mode, cx),
 2624            cx,
 2625        )
 2626    }
 2627
 2628    fn navigate_tag_history(
 2629        &mut self,
 2630        pane: WeakEntity<Pane>,
 2631        mode: TagNavigationMode,
 2632        window: &mut Window,
 2633        cx: &mut Context<Workspace>,
 2634    ) -> Task<Result<()>> {
 2635        self.navigate_history_impl(
 2636            pane,
 2637            NavigationMode::Normal,
 2638            window,
 2639            &mut |history, _cx| history.pop_tag(mode),
 2640            cx,
 2641        )
 2642    }
 2643
 2644    fn navigate_history_impl(
 2645        &mut self,
 2646        pane: WeakEntity<Pane>,
 2647        mode: NavigationMode,
 2648        window: &mut Window,
 2649        cb: &mut dyn FnMut(&mut NavHistory, &mut App) -> Option<NavigationEntry>,
 2650        cx: &mut Context<Workspace>,
 2651    ) -> Task<Result<()>> {
 2652        let to_load = if let Some(pane) = pane.upgrade() {
 2653            pane.update(cx, |pane, cx| {
 2654                window.focus(&pane.focus_handle(cx), cx);
 2655                loop {
 2656                    // Retrieve the weak item handle from the history.
 2657                    let entry = cb(pane.nav_history_mut(), cx)?;
 2658
 2659                    // If the item is still present in this pane, then activate it.
 2660                    if let Some(index) = entry
 2661                        .item
 2662                        .upgrade()
 2663                        .and_then(|v| pane.index_for_item(v.as_ref()))
 2664                    {
 2665                        let prev_active_item_index = pane.active_item_index();
 2666                        pane.nav_history_mut().set_mode(mode);
 2667                        pane.activate_item(index, true, true, window, cx);
 2668                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2669
 2670                        let mut navigated = prev_active_item_index != pane.active_item_index();
 2671                        if let Some(data) = entry.data {
 2672                            navigated |= pane.active_item()?.navigate(data, window, cx);
 2673                        }
 2674
 2675                        if navigated {
 2676                            break None;
 2677                        }
 2678                    } else {
 2679                        // If the item is no longer present in this pane, then retrieve its
 2680                        // path info in order to reopen it.
 2681                        break pane
 2682                            .nav_history()
 2683                            .path_for_item(entry.item.id())
 2684                            .map(|(project_path, abs_path)| (project_path, abs_path, entry));
 2685                    }
 2686                }
 2687            })
 2688        } else {
 2689            None
 2690        };
 2691
 2692        if let Some((project_path, abs_path, entry)) = to_load {
 2693            // If the item was no longer present, then load it again from its previous path, first try the local path
 2694            let open_by_project_path = self.load_path(project_path.clone(), window, cx);
 2695
 2696            cx.spawn_in(window, async move  |workspace, cx| {
 2697                let open_by_project_path = open_by_project_path.await;
 2698                let mut navigated = false;
 2699                match open_by_project_path
 2700                    .with_context(|| format!("Navigating to {project_path:?}"))
 2701                {
 2702                    Ok((project_entry_id, build_item)) => {
 2703                        let prev_active_item_id = pane.update(cx, |pane, _| {
 2704                            pane.nav_history_mut().set_mode(mode);
 2705                            pane.active_item().map(|p| p.item_id())
 2706                        })?;
 2707
 2708                        pane.update_in(cx, |pane, window, cx| {
 2709                            let item = pane.open_item(
 2710                                project_entry_id,
 2711                                project_path,
 2712                                true,
 2713                                entry.is_preview,
 2714                                true,
 2715                                None,
 2716                                window, cx,
 2717                                build_item,
 2718                            );
 2719                            navigated |= Some(item.item_id()) != prev_active_item_id;
 2720                            pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2721                            if let Some(data) = entry.data {
 2722                                navigated |= item.navigate(data, window, cx);
 2723                            }
 2724                        })?;
 2725                    }
 2726                    Err(open_by_project_path_e) => {
 2727                        // Fall back to opening by abs path, in case an external file was opened and closed,
 2728                        // and its worktree is now dropped
 2729                        if let Some(abs_path) = abs_path {
 2730                            let prev_active_item_id = pane.update(cx, |pane, _| {
 2731                                pane.nav_history_mut().set_mode(mode);
 2732                                pane.active_item().map(|p| p.item_id())
 2733                            })?;
 2734                            let open_by_abs_path = workspace.update_in(cx, |workspace, window, cx| {
 2735                                workspace.open_abs_path(abs_path.clone(), OpenOptions { visible: Some(OpenVisible::None), ..Default::default() }, window, cx)
 2736                            })?;
 2737                            match open_by_abs_path
 2738                                .await
 2739                                .with_context(|| format!("Navigating to {abs_path:?}"))
 2740                            {
 2741                                Ok(item) => {
 2742                                    pane.update_in(cx, |pane, window, cx| {
 2743                                        navigated |= Some(item.item_id()) != prev_active_item_id;
 2744                                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2745                                        if let Some(data) = entry.data {
 2746                                            navigated |= item.navigate(data, window, cx);
 2747                                        }
 2748                                    })?;
 2749                                }
 2750                                Err(open_by_abs_path_e) => {
 2751                                    log::error!("Failed to navigate history: {open_by_project_path_e:#} and {open_by_abs_path_e:#}");
 2752                                }
 2753                            }
 2754                        }
 2755                    }
 2756                }
 2757
 2758                if !navigated {
 2759                    workspace
 2760                        .update_in(cx, |workspace, window, cx| {
 2761                            Self::navigate_history(workspace, pane, mode, window, cx)
 2762                        })?
 2763                        .await?;
 2764                }
 2765
 2766                Ok(())
 2767            })
 2768        } else {
 2769            Task::ready(Ok(()))
 2770        }
 2771    }
 2772
 2773    pub fn go_back(
 2774        &mut self,
 2775        pane: WeakEntity<Pane>,
 2776        window: &mut Window,
 2777        cx: &mut Context<Workspace>,
 2778    ) -> Task<Result<()>> {
 2779        self.navigate_history(pane, NavigationMode::GoingBack, window, cx)
 2780    }
 2781
 2782    pub fn go_forward(
 2783        &mut self,
 2784        pane: WeakEntity<Pane>,
 2785        window: &mut Window,
 2786        cx: &mut Context<Workspace>,
 2787    ) -> Task<Result<()>> {
 2788        self.navigate_history(pane, NavigationMode::GoingForward, window, cx)
 2789    }
 2790
 2791    pub fn reopen_closed_item(
 2792        &mut self,
 2793        window: &mut Window,
 2794        cx: &mut Context<Workspace>,
 2795    ) -> Task<Result<()>> {
 2796        self.navigate_history(
 2797            self.active_pane().downgrade(),
 2798            NavigationMode::ReopeningClosedItem,
 2799            window,
 2800            cx,
 2801        )
 2802    }
 2803
 2804    pub fn client(&self) -> &Arc<Client> {
 2805        &self.app_state.client
 2806    }
 2807
 2808    pub fn set_titlebar_item(&mut self, item: AnyView, _: &mut Window, cx: &mut Context<Self>) {
 2809        self.titlebar_item = Some(item);
 2810        cx.notify();
 2811    }
 2812
 2813    pub fn set_prompt_for_new_path(&mut self, prompt: PromptForNewPath) {
 2814        self.on_prompt_for_new_path = Some(prompt)
 2815    }
 2816
 2817    pub fn set_prompt_for_open_path(&mut self, prompt: PromptForOpenPath) {
 2818        self.on_prompt_for_open_path = Some(prompt)
 2819    }
 2820
 2821    pub fn set_terminal_provider(&mut self, provider: impl TerminalProvider + 'static) {
 2822        self.terminal_provider = Some(Box::new(provider));
 2823    }
 2824
 2825    pub fn set_debugger_provider(&mut self, provider: impl DebuggerProvider + 'static) {
 2826        self.debugger_provider = Some(Arc::new(provider));
 2827    }
 2828
 2829    pub fn set_open_in_dev_container(&mut self, value: bool) {
 2830        self.open_in_dev_container = value;
 2831    }
 2832
 2833    pub fn open_in_dev_container(&self) -> bool {
 2834        self.open_in_dev_container
 2835    }
 2836
 2837    pub fn set_dev_container_task(&mut self, task: Task<Result<()>>) {
 2838        self._dev_container_task = Some(task);
 2839    }
 2840
 2841    pub fn debugger_provider(&self) -> Option<Arc<dyn DebuggerProvider>> {
 2842        self.debugger_provider.clone()
 2843    }
 2844
 2845    pub fn prompt_for_open_path(
 2846        &mut self,
 2847        path_prompt_options: PathPromptOptions,
 2848        lister: DirectoryLister,
 2849        window: &mut Window,
 2850        cx: &mut Context<Self>,
 2851    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2852        if !lister.is_local(cx) || !WorkspaceSettings::get_global(cx).use_system_path_prompts {
 2853            let prompt = self.on_prompt_for_open_path.take().unwrap();
 2854            let rx = prompt(self, lister, window, cx);
 2855            self.on_prompt_for_open_path = Some(prompt);
 2856            rx
 2857        } else {
 2858            let (tx, rx) = oneshot::channel();
 2859            let abs_path = cx.prompt_for_paths(path_prompt_options);
 2860
 2861            cx.spawn_in(window, async move |workspace, cx| {
 2862                let Ok(result) = abs_path.await else {
 2863                    return Ok(());
 2864                };
 2865
 2866                match result {
 2867                    Ok(result) => {
 2868                        tx.send(result).ok();
 2869                    }
 2870                    Err(err) => {
 2871                        let rx = workspace.update_in(cx, |workspace, window, cx| {
 2872                            workspace.show_portal_error(err.to_string(), cx);
 2873                            let prompt = workspace.on_prompt_for_open_path.take().unwrap();
 2874                            let rx = prompt(workspace, lister, window, cx);
 2875                            workspace.on_prompt_for_open_path = Some(prompt);
 2876                            rx
 2877                        })?;
 2878                        if let Ok(path) = rx.await {
 2879                            tx.send(path).ok();
 2880                        }
 2881                    }
 2882                };
 2883                anyhow::Ok(())
 2884            })
 2885            .detach();
 2886
 2887            rx
 2888        }
 2889    }
 2890
 2891    pub fn prompt_for_new_path(
 2892        &mut self,
 2893        lister: DirectoryLister,
 2894        suggested_name: Option<String>,
 2895        window: &mut Window,
 2896        cx: &mut Context<Self>,
 2897    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2898        if self.project.read(cx).is_via_collab()
 2899            || self.project.read(cx).is_via_remote_server()
 2900            || !WorkspaceSettings::get_global(cx).use_system_path_prompts
 2901        {
 2902            let prompt = self.on_prompt_for_new_path.take().unwrap();
 2903            let rx = prompt(self, lister, suggested_name, window, cx);
 2904            self.on_prompt_for_new_path = Some(prompt);
 2905            return rx;
 2906        }
 2907
 2908        let (tx, rx) = oneshot::channel();
 2909        cx.spawn_in(window, async move |workspace, cx| {
 2910            let abs_path = workspace.update(cx, |workspace, cx| {
 2911                let relative_to = workspace
 2912                    .most_recent_active_path(cx)
 2913                    .and_then(|p| p.parent().map(|p| p.to_path_buf()))
 2914                    .or_else(|| {
 2915                        let project = workspace.project.read(cx);
 2916                        project.visible_worktrees(cx).find_map(|worktree| {
 2917                            Some(worktree.read(cx).as_local()?.abs_path().to_path_buf())
 2918                        })
 2919                    })
 2920                    .or_else(std::env::home_dir)
 2921                    .unwrap_or_else(|| PathBuf::from(""));
 2922                cx.prompt_for_new_path(&relative_to, suggested_name.as_deref())
 2923            })?;
 2924            let abs_path = match abs_path.await? {
 2925                Ok(path) => path,
 2926                Err(err) => {
 2927                    let rx = workspace.update_in(cx, |workspace, window, cx| {
 2928                        workspace.show_portal_error(err.to_string(), cx);
 2929
 2930                        let prompt = workspace.on_prompt_for_new_path.take().unwrap();
 2931                        let rx = prompt(workspace, lister, suggested_name, window, cx);
 2932                        workspace.on_prompt_for_new_path = Some(prompt);
 2933                        rx
 2934                    })?;
 2935                    if let Ok(path) = rx.await {
 2936                        tx.send(path).ok();
 2937                    }
 2938                    return anyhow::Ok(());
 2939                }
 2940            };
 2941
 2942            tx.send(abs_path.map(|path| vec![path])).ok();
 2943            anyhow::Ok(())
 2944        })
 2945        .detach();
 2946
 2947        rx
 2948    }
 2949
 2950    pub fn titlebar_item(&self) -> Option<AnyView> {
 2951        self.titlebar_item.clone()
 2952    }
 2953
 2954    /// Returns the worktree override set by the user (e.g., via the project dropdown).
 2955    /// When set, git-related operations should use this worktree instead of deriving
 2956    /// the active worktree from the focused file.
 2957    pub fn active_worktree_override(&self) -> Option<WorktreeId> {
 2958        self.active_worktree_override
 2959    }
 2960
 2961    pub fn set_active_worktree_override(
 2962        &mut self,
 2963        worktree_id: Option<WorktreeId>,
 2964        cx: &mut Context<Self>,
 2965    ) {
 2966        self.active_worktree_override = worktree_id;
 2967        cx.notify();
 2968    }
 2969
 2970    pub fn clear_active_worktree_override(&mut self, cx: &mut Context<Self>) {
 2971        self.active_worktree_override = None;
 2972        cx.notify();
 2973    }
 2974
 2975    /// Call the given callback with a workspace whose project is local or remote via WSL (allowing host access).
 2976    ///
 2977    /// If the given workspace has a local project, then it will be passed
 2978    /// to the callback. Otherwise, a new empty window will be created.
 2979    pub fn with_local_workspace<T, F>(
 2980        &mut self,
 2981        window: &mut Window,
 2982        cx: &mut Context<Self>,
 2983        callback: F,
 2984    ) -> Task<Result<T>>
 2985    where
 2986        T: 'static,
 2987        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2988    {
 2989        if self.project.read(cx).is_local() {
 2990            Task::ready(Ok(callback(self, window, cx)))
 2991        } else {
 2992            let env = self.project.read(cx).cli_environment(cx);
 2993            let task = Self::new_local(
 2994                Vec::new(),
 2995                self.app_state.clone(),
 2996                None,
 2997                env,
 2998                None,
 2999                OpenMode::Activate,
 3000                cx,
 3001            );
 3002            cx.spawn_in(window, async move |_vh, cx| {
 3003                let OpenResult {
 3004                    window: multi_workspace_window,
 3005                    ..
 3006                } = task.await?;
 3007                multi_workspace_window.update(cx, |multi_workspace, window, cx| {
 3008                    let workspace = multi_workspace.workspace().clone();
 3009                    workspace.update(cx, |workspace, cx| callback(workspace, window, cx))
 3010                })
 3011            })
 3012        }
 3013    }
 3014
 3015    /// Call the given callback with a workspace whose project is local or remote via WSL (allowing host access).
 3016    ///
 3017    /// If the given workspace has a local project, then it will be passed
 3018    /// to the callback. Otherwise, a new empty window will be created.
 3019    pub fn with_local_or_wsl_workspace<T, F>(
 3020        &mut self,
 3021        window: &mut Window,
 3022        cx: &mut Context<Self>,
 3023        callback: F,
 3024    ) -> Task<Result<T>>
 3025    where
 3026        T: 'static,
 3027        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 3028    {
 3029        let project = self.project.read(cx);
 3030        if project.is_local() || project.is_via_wsl_with_host_interop(cx) {
 3031            Task::ready(Ok(callback(self, window, cx)))
 3032        } else {
 3033            let env = self.project.read(cx).cli_environment(cx);
 3034            let task = Self::new_local(
 3035                Vec::new(),
 3036                self.app_state.clone(),
 3037                None,
 3038                env,
 3039                None,
 3040                OpenMode::Activate,
 3041                cx,
 3042            );
 3043            cx.spawn_in(window, async move |_vh, cx| {
 3044                let OpenResult {
 3045                    window: multi_workspace_window,
 3046                    ..
 3047                } = task.await?;
 3048                multi_workspace_window.update(cx, |multi_workspace, window, cx| {
 3049                    let workspace = multi_workspace.workspace().clone();
 3050                    workspace.update(cx, |workspace, cx| callback(workspace, window, cx))
 3051                })
 3052            })
 3053        }
 3054    }
 3055
 3056    pub fn worktrees<'a>(&self, cx: &'a App) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 3057        self.project.read(cx).worktrees(cx)
 3058    }
 3059
 3060    pub fn visible_worktrees<'a>(
 3061        &self,
 3062        cx: &'a App,
 3063    ) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 3064        self.project.read(cx).visible_worktrees(cx)
 3065    }
 3066
 3067    pub fn worktree_scans_complete(&self, cx: &App) -> impl Future<Output = ()> + 'static + use<> {
 3068        let futures = self
 3069            .worktrees(cx)
 3070            .filter_map(|worktree| worktree.read(cx).as_local())
 3071            .map(|worktree| worktree.scan_complete())
 3072            .collect::<Vec<_>>();
 3073        async move {
 3074            for future in futures {
 3075                future.await;
 3076            }
 3077        }
 3078    }
 3079
 3080    pub fn close_global(cx: &mut App) {
 3081        cx.defer(|cx| {
 3082            cx.windows().iter().find(|window| {
 3083                window
 3084                    .update(cx, |_, window, _| {
 3085                        if window.is_window_active() {
 3086                            //This can only get called when the window's project connection has been lost
 3087                            //so we don't need to prompt the user for anything and instead just close the window
 3088                            window.remove_window();
 3089                            true
 3090                        } else {
 3091                            false
 3092                        }
 3093                    })
 3094                    .unwrap_or(false)
 3095            });
 3096        });
 3097    }
 3098
 3099    pub fn move_focused_panel_to_next_position(
 3100        &mut self,
 3101        _: &MoveFocusedPanelToNextPosition,
 3102        window: &mut Window,
 3103        cx: &mut Context<Self>,
 3104    ) {
 3105        let docks = self.all_docks();
 3106        let active_dock = docks
 3107            .into_iter()
 3108            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 3109
 3110        if let Some(dock) = active_dock {
 3111            dock.update(cx, |dock, cx| {
 3112                let active_panel = dock
 3113                    .active_panel()
 3114                    .filter(|panel| panel.panel_focus_handle(cx).contains_focused(window, cx));
 3115
 3116                if let Some(panel) = active_panel {
 3117                    panel.move_to_next_position(window, cx);
 3118                }
 3119            })
 3120        }
 3121    }
 3122
 3123    pub fn prepare_to_close(
 3124        &mut self,
 3125        close_intent: CloseIntent,
 3126        window: &mut Window,
 3127        cx: &mut Context<Self>,
 3128    ) -> Task<Result<bool>> {
 3129        let active_call = self.active_global_call();
 3130
 3131        cx.spawn_in(window, async move |this, cx| {
 3132            this.update(cx, |this, _| {
 3133                if close_intent == CloseIntent::CloseWindow {
 3134                    this.removing = true;
 3135                }
 3136            })?;
 3137
 3138            let workspace_count = cx.update(|_window, cx| {
 3139                cx.windows()
 3140                    .iter()
 3141                    .filter(|window| window.downcast::<MultiWorkspace>().is_some())
 3142                    .count()
 3143            })?;
 3144
 3145            #[cfg(target_os = "macos")]
 3146            let save_last_workspace = false;
 3147
 3148            // On Linux and Windows, closing the last window should restore the last workspace.
 3149            #[cfg(not(target_os = "macos"))]
 3150            let save_last_workspace = {
 3151                let remaining_workspaces = cx.update(|_window, cx| {
 3152                    cx.windows()
 3153                        .iter()
 3154                        .filter_map(|window| window.downcast::<MultiWorkspace>())
 3155                        .filter_map(|multi_workspace| {
 3156                            multi_workspace
 3157                                .update(cx, |multi_workspace, _, cx| {
 3158                                    multi_workspace.workspace().read(cx).removing
 3159                                })
 3160                                .ok()
 3161                        })
 3162                        .filter(|removing| !removing)
 3163                        .count()
 3164                })?;
 3165
 3166                close_intent != CloseIntent::ReplaceWindow && remaining_workspaces == 0
 3167            };
 3168
 3169            if let Some(active_call) = active_call
 3170                && workspace_count == 1
 3171                && cx
 3172                    .update(|_window, cx| active_call.0.is_in_room(cx))
 3173                    .unwrap_or(false)
 3174            {
 3175                if close_intent == CloseIntent::CloseWindow {
 3176                    this.update(cx, |_, cx| cx.emit(Event::Activate))?;
 3177                    let answer = cx.update(|window, cx| {
 3178                        window.prompt(
 3179                            PromptLevel::Warning,
 3180                            "Do you want to leave the current call?",
 3181                            None,
 3182                            &["Close window and hang up", "Cancel"],
 3183                            cx,
 3184                        )
 3185                    })?;
 3186
 3187                    if answer.await.log_err() == Some(1) {
 3188                        return anyhow::Ok(false);
 3189                    } else {
 3190                        if let Ok(task) = cx.update(|_window, cx| active_call.0.hang_up(cx)) {
 3191                            task.await.log_err();
 3192                        }
 3193                    }
 3194                }
 3195                if close_intent == CloseIntent::ReplaceWindow {
 3196                    _ = cx.update(|_window, cx| {
 3197                        let multi_workspace = cx
 3198                            .windows()
 3199                            .iter()
 3200                            .filter_map(|window| window.downcast::<MultiWorkspace>())
 3201                            .next()
 3202                            .unwrap();
 3203                        let project = multi_workspace
 3204                            .read(cx)?
 3205                            .workspace()
 3206                            .read(cx)
 3207                            .project
 3208                            .clone();
 3209                        if project.read(cx).is_shared() {
 3210                            active_call.0.unshare_project(project, cx)?;
 3211                        }
 3212                        Ok::<_, anyhow::Error>(())
 3213                    });
 3214                }
 3215            }
 3216
 3217            let save_result = this
 3218                .update_in(cx, |this, window, cx| {
 3219                    this.save_all_internal(SaveIntent::Close, window, cx)
 3220                })?
 3221                .await;
 3222
 3223            // If we're not quitting, but closing, we remove the workspace from
 3224            // the current session.
 3225            if close_intent != CloseIntent::Quit
 3226                && !save_last_workspace
 3227                && save_result.as_ref().is_ok_and(|&res| res)
 3228            {
 3229                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))?
 3230                    .await;
 3231            }
 3232
 3233            save_result
 3234        })
 3235    }
 3236
 3237    fn save_all(&mut self, action: &SaveAll, window: &mut Window, cx: &mut Context<Self>) {
 3238        self.save_all_internal(
 3239            action.save_intent.unwrap_or(SaveIntent::SaveAll),
 3240            window,
 3241            cx,
 3242        )
 3243        .detach_and_log_err(cx);
 3244    }
 3245
 3246    fn send_keystrokes(
 3247        &mut self,
 3248        action: &SendKeystrokes,
 3249        window: &mut Window,
 3250        cx: &mut Context<Self>,
 3251    ) {
 3252        let keystrokes: Vec<Keystroke> = action
 3253            .0
 3254            .split(' ')
 3255            .flat_map(|k| Keystroke::parse(k).log_err())
 3256            .map(|k| {
 3257                cx.keyboard_mapper()
 3258                    .map_key_equivalent(k, false)
 3259                    .inner()
 3260                    .clone()
 3261            })
 3262            .collect();
 3263        let _ = self.send_keystrokes_impl(keystrokes, window, cx);
 3264    }
 3265
 3266    pub fn send_keystrokes_impl(
 3267        &mut self,
 3268        keystrokes: Vec<Keystroke>,
 3269        window: &mut Window,
 3270        cx: &mut Context<Self>,
 3271    ) -> Shared<Task<()>> {
 3272        let mut state = self.dispatching_keystrokes.borrow_mut();
 3273        if !state.dispatched.insert(keystrokes.clone()) {
 3274            cx.propagate();
 3275            return state.task.clone().unwrap();
 3276        }
 3277
 3278        state.queue.extend(keystrokes);
 3279
 3280        let keystrokes = self.dispatching_keystrokes.clone();
 3281        if state.task.is_none() {
 3282            state.task = Some(
 3283                window
 3284                    .spawn(cx, async move |cx| {
 3285                        // limit to 100 keystrokes to avoid infinite recursion.
 3286                        for _ in 0..100 {
 3287                            let keystroke = {
 3288                                let mut state = keystrokes.borrow_mut();
 3289                                let Some(keystroke) = state.queue.pop_front() else {
 3290                                    state.dispatched.clear();
 3291                                    state.task.take();
 3292                                    return;
 3293                                };
 3294                                keystroke
 3295                            };
 3296                            cx.update(|window, cx| {
 3297                                let focused = window.focused(cx);
 3298                                window.dispatch_keystroke(keystroke.clone(), cx);
 3299                                if window.focused(cx) != focused {
 3300                                    // dispatch_keystroke may cause the focus to change.
 3301                                    // draw's side effect is to schedule the FocusChanged events in the current flush effect cycle
 3302                                    // And we need that to happen before the next keystroke to keep vim mode happy...
 3303                                    // (Note that the tests always do this implicitly, so you must manually test with something like:
 3304                                    //   "bindings": { "g z": ["workspace::SendKeystrokes", ": j <enter> u"]}
 3305                                    // )
 3306                                    window.draw(cx).clear();
 3307                                }
 3308                            })
 3309                            .ok();
 3310
 3311                            // Yield between synthetic keystrokes so deferred focus and
 3312                            // other effects can settle before dispatching the next key.
 3313                            yield_now().await;
 3314                        }
 3315
 3316                        *keystrokes.borrow_mut() = Default::default();
 3317                        log::error!("over 100 keystrokes passed to send_keystrokes");
 3318                    })
 3319                    .shared(),
 3320            );
 3321        }
 3322        state.task.clone().unwrap()
 3323    }
 3324
 3325    fn save_all_internal(
 3326        &mut self,
 3327        mut save_intent: SaveIntent,
 3328        window: &mut Window,
 3329        cx: &mut Context<Self>,
 3330    ) -> Task<Result<bool>> {
 3331        if self.project.read(cx).is_disconnected(cx) {
 3332            return Task::ready(Ok(true));
 3333        }
 3334        let dirty_items = self
 3335            .panes
 3336            .iter()
 3337            .flat_map(|pane| {
 3338                pane.read(cx).items().filter_map(|item| {
 3339                    if item.is_dirty(cx) {
 3340                        item.tab_content_text(0, cx);
 3341                        Some((pane.downgrade(), item.boxed_clone()))
 3342                    } else {
 3343                        None
 3344                    }
 3345                })
 3346            })
 3347            .collect::<Vec<_>>();
 3348
 3349        let project = self.project.clone();
 3350        cx.spawn_in(window, async move |workspace, cx| {
 3351            let dirty_items = if save_intent == SaveIntent::Close && !dirty_items.is_empty() {
 3352                let (serialize_tasks, remaining_dirty_items) =
 3353                    workspace.update_in(cx, |workspace, window, cx| {
 3354                        let mut remaining_dirty_items = Vec::new();
 3355                        let mut serialize_tasks = Vec::new();
 3356                        for (pane, item) in dirty_items {
 3357                            if let Some(task) = item
 3358                                .to_serializable_item_handle(cx)
 3359                                .and_then(|handle| handle.serialize(workspace, true, window, cx))
 3360                            {
 3361                                serialize_tasks.push(task);
 3362                            } else {
 3363                                remaining_dirty_items.push((pane, item));
 3364                            }
 3365                        }
 3366                        (serialize_tasks, remaining_dirty_items)
 3367                    })?;
 3368
 3369                futures::future::try_join_all(serialize_tasks).await?;
 3370
 3371                if !remaining_dirty_items.is_empty() {
 3372                    workspace.update(cx, |_, cx| cx.emit(Event::Activate))?;
 3373                }
 3374
 3375                if remaining_dirty_items.len() > 1 {
 3376                    let answer = workspace.update_in(cx, |_, window, cx| {
 3377                        let detail = Pane::file_names_for_prompt(
 3378                            &mut remaining_dirty_items.iter().map(|(_, handle)| handle),
 3379                            cx,
 3380                        );
 3381                        window.prompt(
 3382                            PromptLevel::Warning,
 3383                            "Do you want to save all changes in the following files?",
 3384                            Some(&detail),
 3385                            &["Save all", "Discard all", "Cancel"],
 3386                            cx,
 3387                        )
 3388                    })?;
 3389                    match answer.await.log_err() {
 3390                        Some(0) => save_intent = SaveIntent::SaveAll,
 3391                        Some(1) => save_intent = SaveIntent::Skip,
 3392                        Some(2) => return Ok(false),
 3393                        _ => {}
 3394                    }
 3395                }
 3396
 3397                remaining_dirty_items
 3398            } else {
 3399                dirty_items
 3400            };
 3401
 3402            for (pane, item) in dirty_items {
 3403                let (singleton, project_entry_ids) = cx.update(|_, cx| {
 3404                    (
 3405                        item.buffer_kind(cx) == ItemBufferKind::Singleton,
 3406                        item.project_entry_ids(cx),
 3407                    )
 3408                })?;
 3409                if (singleton || !project_entry_ids.is_empty())
 3410                    && !Pane::save_item(project.clone(), &pane, &*item, save_intent, cx).await?
 3411                {
 3412                    return Ok(false);
 3413                }
 3414            }
 3415            Ok(true)
 3416        })
 3417    }
 3418
 3419    pub fn open_workspace_for_paths(
 3420        &mut self,
 3421        // replace_current_window: bool,
 3422        mut open_mode: OpenMode,
 3423        paths: Vec<PathBuf>,
 3424        window: &mut Window,
 3425        cx: &mut Context<Self>,
 3426    ) -> Task<Result<Entity<Workspace>>> {
 3427        let requesting_window = window.window_handle().downcast::<MultiWorkspace>();
 3428        let is_remote = self.project.read(cx).is_via_collab();
 3429        let has_worktree = self.project.read(cx).worktrees(cx).next().is_some();
 3430        let has_dirty_items = self.items(cx).any(|item| item.is_dirty(cx));
 3431
 3432        let workspace_is_empty = !is_remote && !has_worktree && !has_dirty_items;
 3433        if workspace_is_empty {
 3434            open_mode = OpenMode::Activate;
 3435        }
 3436
 3437        let app_state = self.app_state.clone();
 3438
 3439        cx.spawn(async move |_, cx| {
 3440            let OpenResult { workspace, .. } = cx
 3441                .update(|cx| {
 3442                    open_paths(
 3443                        &paths,
 3444                        app_state,
 3445                        OpenOptions {
 3446                            requesting_window,
 3447                            open_mode,
 3448                            ..Default::default()
 3449                        },
 3450                        cx,
 3451                    )
 3452                })
 3453                .await?;
 3454            Ok(workspace)
 3455        })
 3456    }
 3457
 3458    #[allow(clippy::type_complexity)]
 3459    pub fn open_paths(
 3460        &mut self,
 3461        mut abs_paths: Vec<PathBuf>,
 3462        options: OpenOptions,
 3463        pane: Option<WeakEntity<Pane>>,
 3464        window: &mut Window,
 3465        cx: &mut Context<Self>,
 3466    ) -> Task<Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>> {
 3467        let fs = self.app_state.fs.clone();
 3468
 3469        let caller_ordered_abs_paths = abs_paths.clone();
 3470
 3471        // Sort the paths to ensure we add worktrees for parents before their children.
 3472        abs_paths.sort_unstable();
 3473        cx.spawn_in(window, async move |this, cx| {
 3474            let mut tasks = Vec::with_capacity(abs_paths.len());
 3475
 3476            for abs_path in &abs_paths {
 3477                let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 3478                    OpenVisible::All => Some(true),
 3479                    OpenVisible::None => Some(false),
 3480                    OpenVisible::OnlyFiles => match fs.metadata(abs_path).await.log_err() {
 3481                        Some(Some(metadata)) => Some(!metadata.is_dir),
 3482                        Some(None) => Some(true),
 3483                        None => None,
 3484                    },
 3485                    OpenVisible::OnlyDirectories => match fs.metadata(abs_path).await.log_err() {
 3486                        Some(Some(metadata)) => Some(metadata.is_dir),
 3487                        Some(None) => Some(false),
 3488                        None => None,
 3489                    },
 3490                };
 3491                let project_path = match visible {
 3492                    Some(visible) => match this
 3493                        .update(cx, |this, cx| {
 3494                            Workspace::project_path_for_path(
 3495                                this.project.clone(),
 3496                                abs_path,
 3497                                visible,
 3498                                cx,
 3499                            )
 3500                        })
 3501                        .log_err()
 3502                    {
 3503                        Some(project_path) => project_path.await.log_err(),
 3504                        None => None,
 3505                    },
 3506                    None => None,
 3507                };
 3508
 3509                let this = this.clone();
 3510                let abs_path: Arc<Path> = SanitizedPath::new(&abs_path).as_path().into();
 3511                let fs = fs.clone();
 3512                let pane = pane.clone();
 3513                let task = cx.spawn(async move |cx| {
 3514                    let (_worktree, project_path) = project_path?;
 3515                    if fs.is_dir(&abs_path).await {
 3516                        // Opening a directory should not race to update the active entry.
 3517                        // We'll select/reveal a deterministic final entry after all paths finish opening.
 3518                        None
 3519                    } else {
 3520                        Some(
 3521                            this.update_in(cx, |this, window, cx| {
 3522                                this.open_path(
 3523                                    project_path,
 3524                                    pane,
 3525                                    options.focus.unwrap_or(true),
 3526                                    window,
 3527                                    cx,
 3528                                )
 3529                            })
 3530                            .ok()?
 3531                            .await,
 3532                        )
 3533                    }
 3534                });
 3535                tasks.push(task);
 3536            }
 3537
 3538            let results = futures::future::join_all(tasks).await;
 3539
 3540            // Determine the winner using the fake/abstract FS metadata, not `Path::is_dir`.
 3541            let mut winner: Option<(PathBuf, bool)> = None;
 3542            for abs_path in caller_ordered_abs_paths.into_iter().rev() {
 3543                if let Some(Some(metadata)) = fs.metadata(&abs_path).await.log_err() {
 3544                    if !metadata.is_dir {
 3545                        winner = Some((abs_path, false));
 3546                        break;
 3547                    }
 3548                    if winner.is_none() {
 3549                        winner = Some((abs_path, true));
 3550                    }
 3551                } else if winner.is_none() {
 3552                    winner = Some((abs_path, false));
 3553                }
 3554            }
 3555
 3556            // Compute the winner entry id on the foreground thread and emit once, after all
 3557            // paths finish opening. This avoids races between concurrently-opening paths
 3558            // (directories in particular) and makes the resulting project panel selection
 3559            // deterministic.
 3560            if let Some((winner_abs_path, winner_is_dir)) = winner {
 3561                'emit_winner: {
 3562                    let winner_abs_path: Arc<Path> =
 3563                        SanitizedPath::new(&winner_abs_path).as_path().into();
 3564
 3565                    let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 3566                        OpenVisible::All => true,
 3567                        OpenVisible::None => false,
 3568                        OpenVisible::OnlyFiles => !winner_is_dir,
 3569                        OpenVisible::OnlyDirectories => winner_is_dir,
 3570                    };
 3571
 3572                    let Some(worktree_task) = this
 3573                        .update(cx, |workspace, cx| {
 3574                            workspace.project.update(cx, |project, cx| {
 3575                                project.find_or_create_worktree(
 3576                                    winner_abs_path.as_ref(),
 3577                                    visible,
 3578                                    cx,
 3579                                )
 3580                            })
 3581                        })
 3582                        .ok()
 3583                    else {
 3584                        break 'emit_winner;
 3585                    };
 3586
 3587                    let Ok((worktree, _)) = worktree_task.await else {
 3588                        break 'emit_winner;
 3589                    };
 3590
 3591                    let Ok(Some(entry_id)) = this.update(cx, |_, cx| {
 3592                        let worktree = worktree.read(cx);
 3593                        let worktree_abs_path = worktree.abs_path();
 3594                        let entry = if winner_abs_path.as_ref() == worktree_abs_path.as_ref() {
 3595                            worktree.root_entry()
 3596                        } else {
 3597                            winner_abs_path
 3598                                .strip_prefix(worktree_abs_path.as_ref())
 3599                                .ok()
 3600                                .and_then(|relative_path| {
 3601                                    let relative_path =
 3602                                        RelPath::new(relative_path, PathStyle::local())
 3603                                            .log_err()?;
 3604                                    worktree.entry_for_path(&relative_path)
 3605                                })
 3606                        }?;
 3607                        Some(entry.id)
 3608                    }) else {
 3609                        break 'emit_winner;
 3610                    };
 3611
 3612                    this.update(cx, |workspace, cx| {
 3613                        workspace.project.update(cx, |_, cx| {
 3614                            cx.emit(project::Event::ActiveEntryChanged(Some(entry_id)));
 3615                        });
 3616                    })
 3617                    .ok();
 3618                }
 3619            }
 3620
 3621            results
 3622        })
 3623    }
 3624
 3625    pub fn open_resolved_path(
 3626        &mut self,
 3627        path: ResolvedPath,
 3628        window: &mut Window,
 3629        cx: &mut Context<Self>,
 3630    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3631        match path {
 3632            ResolvedPath::ProjectPath { project_path, .. } => {
 3633                self.open_path(project_path, None, true, window, cx)
 3634            }
 3635            ResolvedPath::AbsPath { path, .. } => self.open_abs_path(
 3636                PathBuf::from(path),
 3637                OpenOptions {
 3638                    visible: Some(OpenVisible::None),
 3639                    ..Default::default()
 3640                },
 3641                window,
 3642                cx,
 3643            ),
 3644        }
 3645    }
 3646
 3647    pub fn absolute_path_of_worktree(
 3648        &self,
 3649        worktree_id: WorktreeId,
 3650        cx: &mut Context<Self>,
 3651    ) -> Option<PathBuf> {
 3652        self.project
 3653            .read(cx)
 3654            .worktree_for_id(worktree_id, cx)
 3655            // TODO: use `abs_path` or `root_dir`
 3656            .map(|wt| wt.read(cx).abs_path().as_ref().to_path_buf())
 3657    }
 3658
 3659    pub fn add_folder_to_project(
 3660        &mut self,
 3661        _: &AddFolderToProject,
 3662        window: &mut Window,
 3663        cx: &mut Context<Self>,
 3664    ) {
 3665        let project = self.project.read(cx);
 3666        if project.is_via_collab() {
 3667            self.show_error(
 3668                &anyhow!("You cannot add folders to someone else's project"),
 3669                cx,
 3670            );
 3671            return;
 3672        }
 3673        let paths = self.prompt_for_open_path(
 3674            PathPromptOptions {
 3675                files: false,
 3676                directories: true,
 3677                multiple: true,
 3678                prompt: None,
 3679            },
 3680            DirectoryLister::Project(self.project.clone()),
 3681            window,
 3682            cx,
 3683        );
 3684        cx.spawn_in(window, async move |this, cx| {
 3685            if let Some(paths) = paths.await.log_err().flatten() {
 3686                let results = this
 3687                    .update_in(cx, |this, window, cx| {
 3688                        this.open_paths(
 3689                            paths,
 3690                            OpenOptions {
 3691                                visible: Some(OpenVisible::All),
 3692                                ..Default::default()
 3693                            },
 3694                            None,
 3695                            window,
 3696                            cx,
 3697                        )
 3698                    })?
 3699                    .await;
 3700                for result in results.into_iter().flatten() {
 3701                    result.log_err();
 3702                }
 3703            }
 3704            anyhow::Ok(())
 3705        })
 3706        .detach_and_log_err(cx);
 3707    }
 3708
 3709    pub fn project_path_for_path(
 3710        project: Entity<Project>,
 3711        abs_path: &Path,
 3712        visible: bool,
 3713        cx: &mut App,
 3714    ) -> Task<Result<(Entity<Worktree>, ProjectPath)>> {
 3715        let entry = project.update(cx, |project, cx| {
 3716            project.find_or_create_worktree(abs_path, visible, cx)
 3717        });
 3718        cx.spawn(async move |cx| {
 3719            let (worktree, path) = entry.await?;
 3720            let worktree_id = worktree.read_with(cx, |t, _| t.id());
 3721            Ok((worktree, ProjectPath { worktree_id, path }))
 3722        })
 3723    }
 3724
 3725    pub fn items<'a>(&'a self, cx: &'a App) -> impl 'a + Iterator<Item = &'a Box<dyn ItemHandle>> {
 3726        self.panes.iter().flat_map(|pane| pane.read(cx).items())
 3727    }
 3728
 3729    pub fn item_of_type<T: Item>(&self, cx: &App) -> Option<Entity<T>> {
 3730        self.items_of_type(cx).max_by_key(|item| item.item_id())
 3731    }
 3732
 3733    pub fn items_of_type<'a, T: Item>(
 3734        &'a self,
 3735        cx: &'a App,
 3736    ) -> impl 'a + Iterator<Item = Entity<T>> {
 3737        self.panes
 3738            .iter()
 3739            .flat_map(|pane| pane.read(cx).items_of_type())
 3740    }
 3741
 3742    pub fn active_item(&self, cx: &App) -> Option<Box<dyn ItemHandle>> {
 3743        self.active_pane().read(cx).active_item()
 3744    }
 3745
 3746    pub fn active_item_as<I: 'static>(&self, cx: &App) -> Option<Entity<I>> {
 3747        let item = self.active_item(cx)?;
 3748        item.to_any_view().downcast::<I>().ok()
 3749    }
 3750
 3751    fn active_project_path(&self, cx: &App) -> Option<ProjectPath> {
 3752        self.active_item(cx).and_then(|item| item.project_path(cx))
 3753    }
 3754
 3755    pub fn most_recent_active_path(&self, cx: &App) -> Option<PathBuf> {
 3756        self.recent_navigation_history_iter(cx)
 3757            .filter_map(|(path, abs_path)| {
 3758                let worktree = self
 3759                    .project
 3760                    .read(cx)
 3761                    .worktree_for_id(path.worktree_id, cx)?;
 3762                if worktree.read(cx).is_visible() {
 3763                    abs_path
 3764                } else {
 3765                    None
 3766                }
 3767            })
 3768            .next()
 3769    }
 3770
 3771    pub fn save_active_item(
 3772        &mut self,
 3773        save_intent: SaveIntent,
 3774        window: &mut Window,
 3775        cx: &mut App,
 3776    ) -> Task<Result<()>> {
 3777        let project = self.project.clone();
 3778        let pane = self.active_pane();
 3779        let item = pane.read(cx).active_item();
 3780        let pane = pane.downgrade();
 3781
 3782        window.spawn(cx, async move |cx| {
 3783            if let Some(item) = item {
 3784                Pane::save_item(project, &pane, item.as_ref(), save_intent, cx)
 3785                    .await
 3786                    .map(|_| ())
 3787            } else {
 3788                Ok(())
 3789            }
 3790        })
 3791    }
 3792
 3793    pub fn close_inactive_items_and_panes(
 3794        &mut self,
 3795        action: &CloseInactiveTabsAndPanes,
 3796        window: &mut Window,
 3797        cx: &mut Context<Self>,
 3798    ) {
 3799        if let Some(task) = self.close_all_internal(
 3800            true,
 3801            action.save_intent.unwrap_or(SaveIntent::Close),
 3802            window,
 3803            cx,
 3804        ) {
 3805            task.detach_and_log_err(cx)
 3806        }
 3807    }
 3808
 3809    pub fn close_all_items_and_panes(
 3810        &mut self,
 3811        action: &CloseAllItemsAndPanes,
 3812        window: &mut Window,
 3813        cx: &mut Context<Self>,
 3814    ) {
 3815        if let Some(task) = self.close_all_internal(
 3816            false,
 3817            action.save_intent.unwrap_or(SaveIntent::Close),
 3818            window,
 3819            cx,
 3820        ) {
 3821            task.detach_and_log_err(cx)
 3822        }
 3823    }
 3824
 3825    /// Closes the active item across all panes.
 3826    pub fn close_item_in_all_panes(
 3827        &mut self,
 3828        action: &CloseItemInAllPanes,
 3829        window: &mut Window,
 3830        cx: &mut Context<Self>,
 3831    ) {
 3832        let Some(active_item) = self.active_pane().read(cx).active_item() else {
 3833            return;
 3834        };
 3835
 3836        let save_intent = action.save_intent.unwrap_or(SaveIntent::Close);
 3837        let close_pinned = action.close_pinned;
 3838
 3839        if let Some(project_path) = active_item.project_path(cx) {
 3840            self.close_items_with_project_path(
 3841                &project_path,
 3842                save_intent,
 3843                close_pinned,
 3844                window,
 3845                cx,
 3846            );
 3847        } else if close_pinned || !self.active_pane().read(cx).is_active_item_pinned() {
 3848            let item_id = active_item.item_id();
 3849            self.active_pane().update(cx, |pane, cx| {
 3850                pane.close_item_by_id(item_id, save_intent, window, cx)
 3851                    .detach_and_log_err(cx);
 3852            });
 3853        }
 3854    }
 3855
 3856    /// Closes all items with the given project path across all panes.
 3857    pub fn close_items_with_project_path(
 3858        &mut self,
 3859        project_path: &ProjectPath,
 3860        save_intent: SaveIntent,
 3861        close_pinned: bool,
 3862        window: &mut Window,
 3863        cx: &mut Context<Self>,
 3864    ) {
 3865        let panes = self.panes().to_vec();
 3866        for pane in panes {
 3867            pane.update(cx, |pane, cx| {
 3868                pane.close_items_for_project_path(
 3869                    project_path,
 3870                    save_intent,
 3871                    close_pinned,
 3872                    window,
 3873                    cx,
 3874                )
 3875                .detach_and_log_err(cx);
 3876            });
 3877        }
 3878    }
 3879
 3880    fn close_all_internal(
 3881        &mut self,
 3882        retain_active_pane: bool,
 3883        save_intent: SaveIntent,
 3884        window: &mut Window,
 3885        cx: &mut Context<Self>,
 3886    ) -> Option<Task<Result<()>>> {
 3887        let current_pane = self.active_pane();
 3888
 3889        let mut tasks = Vec::new();
 3890
 3891        if retain_active_pane {
 3892            let current_pane_close = current_pane.update(cx, |pane, cx| {
 3893                pane.close_other_items(
 3894                    &CloseOtherItems {
 3895                        save_intent: None,
 3896                        close_pinned: false,
 3897                    },
 3898                    None,
 3899                    window,
 3900                    cx,
 3901                )
 3902            });
 3903
 3904            tasks.push(current_pane_close);
 3905        }
 3906
 3907        for pane in self.panes() {
 3908            if retain_active_pane && pane.entity_id() == current_pane.entity_id() {
 3909                continue;
 3910            }
 3911
 3912            let close_pane_items = pane.update(cx, |pane: &mut Pane, cx| {
 3913                pane.close_all_items(
 3914                    &CloseAllItems {
 3915                        save_intent: Some(save_intent),
 3916                        close_pinned: false,
 3917                    },
 3918                    window,
 3919                    cx,
 3920                )
 3921            });
 3922
 3923            tasks.push(close_pane_items)
 3924        }
 3925
 3926        if tasks.is_empty() {
 3927            None
 3928        } else {
 3929            Some(cx.spawn_in(window, async move |_, _| {
 3930                for task in tasks {
 3931                    task.await?
 3932                }
 3933                Ok(())
 3934            }))
 3935        }
 3936    }
 3937
 3938    pub fn is_dock_at_position_open(&self, position: DockPosition, cx: &mut Context<Self>) -> bool {
 3939        self.dock_at_position(position).read(cx).is_open()
 3940    }
 3941
 3942    pub fn toggle_dock(
 3943        &mut self,
 3944        dock_side: DockPosition,
 3945        window: &mut Window,
 3946        cx: &mut Context<Self>,
 3947    ) {
 3948        let mut focus_center = false;
 3949        let mut reveal_dock = false;
 3950
 3951        let other_is_zoomed = self.zoomed.is_some() && self.zoomed_position != Some(dock_side);
 3952        let was_visible = self.is_dock_at_position_open(dock_side, cx) && !other_is_zoomed;
 3953
 3954        if let Some(panel) = self.dock_at_position(dock_side).read(cx).active_panel() {
 3955            telemetry::event!(
 3956                "Panel Button Clicked",
 3957                name = panel.persistent_name(),
 3958                toggle_state = !was_visible
 3959            );
 3960        }
 3961        if was_visible {
 3962            self.save_open_dock_positions(cx);
 3963        }
 3964
 3965        let dock = self.dock_at_position(dock_side);
 3966        dock.update(cx, |dock, cx| {
 3967            dock.set_open(!was_visible, window, cx);
 3968
 3969            if dock.active_panel().is_none() {
 3970                let Some(panel_ix) = dock
 3971                    .first_enabled_panel_idx(cx)
 3972                    .log_with_level(log::Level::Info)
 3973                else {
 3974                    return;
 3975                };
 3976                dock.activate_panel(panel_ix, window, cx);
 3977            }
 3978
 3979            if let Some(active_panel) = dock.active_panel() {
 3980                if was_visible {
 3981                    if active_panel
 3982                        .panel_focus_handle(cx)
 3983                        .contains_focused(window, cx)
 3984                    {
 3985                        focus_center = true;
 3986                    }
 3987                } else {
 3988                    let focus_handle = &active_panel.panel_focus_handle(cx);
 3989                    window.focus(focus_handle, cx);
 3990                    reveal_dock = true;
 3991                }
 3992            }
 3993        });
 3994
 3995        if reveal_dock {
 3996            self.dismiss_zoomed_items_to_reveal(Some(dock_side), window, cx);
 3997        }
 3998
 3999        if focus_center {
 4000            self.active_pane
 4001                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 4002        }
 4003
 4004        cx.notify();
 4005        self.serialize_workspace(window, cx);
 4006    }
 4007
 4008    fn active_dock(&self, window: &Window, cx: &Context<Self>) -> Option<&Entity<Dock>> {
 4009        self.all_docks().into_iter().find(|&dock| {
 4010            dock.read(cx).is_open() && dock.focus_handle(cx).contains_focused(window, cx)
 4011        })
 4012    }
 4013
 4014    fn close_active_dock(&mut self, window: &mut Window, cx: &mut Context<Self>) -> bool {
 4015        if let Some(dock) = self.active_dock(window, cx).cloned() {
 4016            self.save_open_dock_positions(cx);
 4017            dock.update(cx, |dock, cx| {
 4018                dock.set_open(false, window, cx);
 4019            });
 4020            return true;
 4021        }
 4022        false
 4023    }
 4024
 4025    pub fn close_all_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4026        self.save_open_dock_positions(cx);
 4027        for dock in self.all_docks() {
 4028            dock.update(cx, |dock, cx| {
 4029                dock.set_open(false, window, cx);
 4030            });
 4031        }
 4032
 4033        cx.focus_self(window);
 4034        cx.notify();
 4035        self.serialize_workspace(window, cx);
 4036    }
 4037
 4038    fn get_open_dock_positions(&self, cx: &Context<Self>) -> Vec<DockPosition> {
 4039        self.all_docks()
 4040            .into_iter()
 4041            .filter_map(|dock| {
 4042                let dock_ref = dock.read(cx);
 4043                if dock_ref.is_open() {
 4044                    Some(dock_ref.position())
 4045                } else {
 4046                    None
 4047                }
 4048            })
 4049            .collect()
 4050    }
 4051
 4052    /// Saves the positions of currently open docks.
 4053    ///
 4054    /// Updates `last_open_dock_positions` with positions of all currently open
 4055    /// docks, to later be restored by the 'Toggle All Docks' action.
 4056    fn save_open_dock_positions(&mut self, cx: &mut Context<Self>) {
 4057        let open_dock_positions = self.get_open_dock_positions(cx);
 4058        if !open_dock_positions.is_empty() {
 4059            self.last_open_dock_positions = open_dock_positions;
 4060        }
 4061    }
 4062
 4063    /// Toggles all docks between open and closed states.
 4064    ///
 4065    /// If any docks are open, closes all and remembers their positions. If all
 4066    /// docks are closed, restores the last remembered dock configuration.
 4067    fn toggle_all_docks(
 4068        &mut self,
 4069        _: &ToggleAllDocks,
 4070        window: &mut Window,
 4071        cx: &mut Context<Self>,
 4072    ) {
 4073        let open_dock_positions = self.get_open_dock_positions(cx);
 4074
 4075        if !open_dock_positions.is_empty() {
 4076            self.close_all_docks(window, cx);
 4077        } else if !self.last_open_dock_positions.is_empty() {
 4078            self.restore_last_open_docks(window, cx);
 4079        }
 4080    }
 4081
 4082    /// Reopens docks from the most recently remembered configuration.
 4083    ///
 4084    /// Opens all docks whose positions are stored in `last_open_dock_positions`
 4085    /// and clears the stored positions.
 4086    fn restore_last_open_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4087        let positions_to_open = std::mem::take(&mut self.last_open_dock_positions);
 4088
 4089        for position in positions_to_open {
 4090            let dock = self.dock_at_position(position);
 4091            dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 4092        }
 4093
 4094        cx.focus_self(window);
 4095        cx.notify();
 4096        self.serialize_workspace(window, cx);
 4097    }
 4098
 4099    /// Transfer focus to the panel of the given type.
 4100    pub fn focus_panel<T: Panel>(
 4101        &mut self,
 4102        window: &mut Window,
 4103        cx: &mut Context<Self>,
 4104    ) -> Option<Entity<T>> {
 4105        let panel = self.focus_or_unfocus_panel::<T>(window, cx, &mut |_, _, _| true)?;
 4106        panel.to_any().downcast().ok()
 4107    }
 4108
 4109    /// Focus the panel of the given type if it isn't already focused. If it is
 4110    /// already focused, then transfer focus back to the workspace center.
 4111    /// When the `close_panel_on_toggle` setting is enabled, also closes the
 4112    /// panel when transferring focus back to the center.
 4113    pub fn toggle_panel_focus<T: Panel>(
 4114        &mut self,
 4115        window: &mut Window,
 4116        cx: &mut Context<Self>,
 4117    ) -> bool {
 4118        let mut did_focus_panel = false;
 4119        self.focus_or_unfocus_panel::<T>(window, cx, &mut |panel, window, cx| {
 4120            did_focus_panel = !panel.panel_focus_handle(cx).contains_focused(window, cx);
 4121            did_focus_panel
 4122        });
 4123
 4124        if !did_focus_panel && WorkspaceSettings::get_global(cx).close_panel_on_toggle {
 4125            self.close_panel::<T>(window, cx);
 4126        }
 4127
 4128        telemetry::event!(
 4129            "Panel Button Clicked",
 4130            name = T::persistent_name(),
 4131            toggle_state = did_focus_panel
 4132        );
 4133
 4134        did_focus_panel
 4135    }
 4136
 4137    pub fn focus_center_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4138        if let Some(item) = self.active_item(cx) {
 4139            item.item_focus_handle(cx).focus(window, cx);
 4140        } else {
 4141            log::error!("Could not find a focus target when switching focus to the center panes",);
 4142        }
 4143    }
 4144
 4145    pub fn activate_panel_for_proto_id(
 4146        &mut self,
 4147        panel_id: PanelId,
 4148        window: &mut Window,
 4149        cx: &mut Context<Self>,
 4150    ) -> Option<Arc<dyn PanelHandle>> {
 4151        let mut panel = None;
 4152        for dock in self.all_docks() {
 4153            if let Some(panel_index) = dock.read(cx).panel_index_for_proto_id(panel_id) {
 4154                panel = dock.update(cx, |dock, cx| {
 4155                    dock.activate_panel(panel_index, window, cx);
 4156                    dock.set_open(true, window, cx);
 4157                    dock.active_panel().cloned()
 4158                });
 4159                break;
 4160            }
 4161        }
 4162
 4163        if panel.is_some() {
 4164            cx.notify();
 4165            self.serialize_workspace(window, cx);
 4166        }
 4167
 4168        panel
 4169    }
 4170
 4171    /// Focus or unfocus the given panel type, depending on the given callback.
 4172    fn focus_or_unfocus_panel<T: Panel>(
 4173        &mut self,
 4174        window: &mut Window,
 4175        cx: &mut Context<Self>,
 4176        should_focus: &mut dyn FnMut(&dyn PanelHandle, &mut Window, &mut Context<Dock>) -> bool,
 4177    ) -> Option<Arc<dyn PanelHandle>> {
 4178        let mut result_panel = None;
 4179        let mut serialize = false;
 4180        for dock in self.all_docks() {
 4181            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 4182                let mut focus_center = false;
 4183                let panel = dock.update(cx, |dock, cx| {
 4184                    dock.activate_panel(panel_index, window, cx);
 4185
 4186                    let panel = dock.active_panel().cloned();
 4187                    if let Some(panel) = panel.as_ref() {
 4188                        if should_focus(&**panel, window, cx) {
 4189                            dock.set_open(true, window, cx);
 4190                            panel.panel_focus_handle(cx).focus(window, cx);
 4191                        } else {
 4192                            focus_center = true;
 4193                        }
 4194                    }
 4195                    panel
 4196                });
 4197
 4198                if focus_center {
 4199                    self.active_pane
 4200                        .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 4201                }
 4202
 4203                result_panel = panel;
 4204                serialize = true;
 4205                break;
 4206            }
 4207        }
 4208
 4209        if serialize {
 4210            self.serialize_workspace(window, cx);
 4211        }
 4212
 4213        cx.notify();
 4214        result_panel
 4215    }
 4216
 4217    /// Open the panel of the given type
 4218    pub fn open_panel<T: Panel>(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4219        for dock in self.all_docks() {
 4220            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 4221                dock.update(cx, |dock, cx| {
 4222                    dock.activate_panel(panel_index, window, cx);
 4223                    dock.set_open(true, window, cx);
 4224                });
 4225            }
 4226        }
 4227    }
 4228
 4229    /// Open the panel of the given type, dismissing any zoomed items that
 4230    /// would obscure it (e.g. a zoomed terminal).
 4231    pub fn reveal_panel<T: Panel>(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4232        let dock_position = self.all_docks().iter().find_map(|dock| {
 4233            let dock = dock.read(cx);
 4234            dock.panel_index_for_type::<T>().map(|_| dock.position())
 4235        });
 4236        self.dismiss_zoomed_items_to_reveal(dock_position, window, cx);
 4237        self.open_panel::<T>(window, cx);
 4238    }
 4239
 4240    pub fn close_panel<T: Panel>(&self, window: &mut Window, cx: &mut Context<Self>) {
 4241        for dock in self.all_docks().iter() {
 4242            dock.update(cx, |dock, cx| {
 4243                if dock.panel::<T>().is_some() {
 4244                    dock.set_open(false, window, cx)
 4245                }
 4246            })
 4247        }
 4248    }
 4249
 4250    pub fn panel<T: Panel>(&self, cx: &App) -> Option<Entity<T>> {
 4251        self.all_docks()
 4252            .iter()
 4253            .find_map(|dock| dock.read(cx).panel::<T>())
 4254    }
 4255
 4256    fn dismiss_zoomed_items_to_reveal(
 4257        &mut self,
 4258        dock_to_reveal: Option<DockPosition>,
 4259        window: &mut Window,
 4260        cx: &mut Context<Self>,
 4261    ) {
 4262        // If a center pane is zoomed, unzoom it.
 4263        for pane in &self.panes {
 4264            if pane != &self.active_pane || dock_to_reveal.is_some() {
 4265                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 4266            }
 4267        }
 4268
 4269        // If another dock is zoomed, hide it.
 4270        let mut focus_center = false;
 4271        for dock in self.all_docks() {
 4272            dock.update(cx, |dock, cx| {
 4273                if Some(dock.position()) != dock_to_reveal
 4274                    && let Some(panel) = dock.active_panel()
 4275                    && panel.is_zoomed(window, cx)
 4276                {
 4277                    focus_center |= panel.panel_focus_handle(cx).contains_focused(window, cx);
 4278                    dock.set_open(false, window, cx);
 4279                }
 4280            });
 4281        }
 4282
 4283        if focus_center {
 4284            self.active_pane
 4285                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 4286        }
 4287
 4288        if self.zoomed_position != dock_to_reveal {
 4289            self.zoomed = None;
 4290            self.zoomed_position = None;
 4291            cx.emit(Event::ZoomChanged);
 4292        }
 4293
 4294        cx.notify();
 4295    }
 4296
 4297    fn add_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 4298        let pane = cx.new(|cx| {
 4299            let mut pane = Pane::new(
 4300                self.weak_handle(),
 4301                self.project.clone(),
 4302                self.pane_history_timestamp.clone(),
 4303                None,
 4304                NewFile.boxed_clone(),
 4305                true,
 4306                window,
 4307                cx,
 4308            );
 4309            pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 4310            pane
 4311        });
 4312        cx.subscribe_in(&pane, window, Self::handle_pane_event)
 4313            .detach();
 4314        self.panes.push(pane.clone());
 4315
 4316        window.focus(&pane.focus_handle(cx), cx);
 4317
 4318        cx.emit(Event::PaneAdded(pane.clone()));
 4319        pane
 4320    }
 4321
 4322    pub fn add_item_to_center(
 4323        &mut self,
 4324        item: Box<dyn ItemHandle>,
 4325        window: &mut Window,
 4326        cx: &mut Context<Self>,
 4327    ) -> bool {
 4328        if let Some(center_pane) = self.last_active_center_pane.clone() {
 4329            if let Some(center_pane) = center_pane.upgrade() {
 4330                center_pane.update(cx, |pane, cx| {
 4331                    pane.add_item(item, true, true, None, window, cx)
 4332                });
 4333                true
 4334            } else {
 4335                false
 4336            }
 4337        } else {
 4338            false
 4339        }
 4340    }
 4341
 4342    pub fn add_item_to_active_pane(
 4343        &mut self,
 4344        item: Box<dyn ItemHandle>,
 4345        destination_index: Option<usize>,
 4346        focus_item: bool,
 4347        window: &mut Window,
 4348        cx: &mut App,
 4349    ) {
 4350        self.add_item(
 4351            self.active_pane.clone(),
 4352            item,
 4353            destination_index,
 4354            false,
 4355            focus_item,
 4356            window,
 4357            cx,
 4358        )
 4359    }
 4360
 4361    pub fn add_item(
 4362        &mut self,
 4363        pane: Entity<Pane>,
 4364        item: Box<dyn ItemHandle>,
 4365        destination_index: Option<usize>,
 4366        activate_pane: bool,
 4367        focus_item: bool,
 4368        window: &mut Window,
 4369        cx: &mut App,
 4370    ) {
 4371        pane.update(cx, |pane, cx| {
 4372            pane.add_item(
 4373                item,
 4374                activate_pane,
 4375                focus_item,
 4376                destination_index,
 4377                window,
 4378                cx,
 4379            )
 4380        });
 4381    }
 4382
 4383    pub fn split_item(
 4384        &mut self,
 4385        split_direction: SplitDirection,
 4386        item: Box<dyn ItemHandle>,
 4387        window: &mut Window,
 4388        cx: &mut Context<Self>,
 4389    ) {
 4390        let new_pane = self.split_pane(self.active_pane.clone(), split_direction, window, cx);
 4391        self.add_item(new_pane, item, None, true, true, window, cx);
 4392    }
 4393
 4394    pub fn open_abs_path(
 4395        &mut self,
 4396        abs_path: PathBuf,
 4397        options: OpenOptions,
 4398        window: &mut Window,
 4399        cx: &mut Context<Self>,
 4400    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4401        cx.spawn_in(window, async move |workspace, cx| {
 4402            let open_paths_task_result = workspace
 4403                .update_in(cx, |workspace, window, cx| {
 4404                    workspace.open_paths(vec![abs_path.clone()], options, None, window, cx)
 4405                })
 4406                .with_context(|| format!("open abs path {abs_path:?} task spawn"))?
 4407                .await;
 4408            anyhow::ensure!(
 4409                open_paths_task_result.len() == 1,
 4410                "open abs path {abs_path:?} task returned incorrect number of results"
 4411            );
 4412            match open_paths_task_result
 4413                .into_iter()
 4414                .next()
 4415                .expect("ensured single task result")
 4416            {
 4417                Some(open_result) => {
 4418                    open_result.with_context(|| format!("open abs path {abs_path:?} task join"))
 4419                }
 4420                None => anyhow::bail!("open abs path {abs_path:?} task returned None"),
 4421            }
 4422        })
 4423    }
 4424
 4425    pub fn split_abs_path(
 4426        &mut self,
 4427        abs_path: PathBuf,
 4428        visible: bool,
 4429        window: &mut Window,
 4430        cx: &mut Context<Self>,
 4431    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4432        let project_path_task =
 4433            Workspace::project_path_for_path(self.project.clone(), &abs_path, visible, cx);
 4434        cx.spawn_in(window, async move |this, cx| {
 4435            let (_, path) = project_path_task.await?;
 4436            this.update_in(cx, |this, window, cx| this.split_path(path, window, cx))?
 4437                .await
 4438        })
 4439    }
 4440
 4441    pub fn open_path(
 4442        &mut self,
 4443        path: impl Into<ProjectPath>,
 4444        pane: Option<WeakEntity<Pane>>,
 4445        focus_item: bool,
 4446        window: &mut Window,
 4447        cx: &mut App,
 4448    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4449        self.open_path_preview(path, pane, focus_item, false, true, window, cx)
 4450    }
 4451
 4452    pub fn open_path_preview(
 4453        &mut self,
 4454        path: impl Into<ProjectPath>,
 4455        pane: Option<WeakEntity<Pane>>,
 4456        focus_item: bool,
 4457        allow_preview: bool,
 4458        activate: bool,
 4459        window: &mut Window,
 4460        cx: &mut App,
 4461    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4462        let pane = pane.unwrap_or_else(|| {
 4463            self.last_active_center_pane.clone().unwrap_or_else(|| {
 4464                self.panes
 4465                    .first()
 4466                    .expect("There must be an active pane")
 4467                    .downgrade()
 4468            })
 4469        });
 4470
 4471        let project_path = path.into();
 4472        let task = self.load_path(project_path.clone(), window, cx);
 4473        window.spawn(cx, async move |cx| {
 4474            let (project_entry_id, build_item) = task.await?;
 4475
 4476            pane.update_in(cx, |pane, window, cx| {
 4477                pane.open_item(
 4478                    project_entry_id,
 4479                    project_path,
 4480                    focus_item,
 4481                    allow_preview,
 4482                    activate,
 4483                    None,
 4484                    window,
 4485                    cx,
 4486                    build_item,
 4487                )
 4488            })
 4489        })
 4490    }
 4491
 4492    pub fn split_path(
 4493        &mut self,
 4494        path: impl Into<ProjectPath>,
 4495        window: &mut Window,
 4496        cx: &mut Context<Self>,
 4497    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4498        self.split_path_preview(path, false, None, window, cx)
 4499    }
 4500
 4501    pub fn split_path_preview(
 4502        &mut self,
 4503        path: impl Into<ProjectPath>,
 4504        allow_preview: bool,
 4505        split_direction: Option<SplitDirection>,
 4506        window: &mut Window,
 4507        cx: &mut Context<Self>,
 4508    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4509        let pane = self.last_active_center_pane.clone().unwrap_or_else(|| {
 4510            self.panes
 4511                .first()
 4512                .expect("There must be an active pane")
 4513                .downgrade()
 4514        });
 4515
 4516        if let Member::Pane(center_pane) = &self.center.root
 4517            && center_pane.read(cx).items_len() == 0
 4518        {
 4519            return self.open_path(path, Some(pane), true, window, cx);
 4520        }
 4521
 4522        let project_path = path.into();
 4523        let task = self.load_path(project_path.clone(), window, cx);
 4524        cx.spawn_in(window, async move |this, cx| {
 4525            let (project_entry_id, build_item) = task.await?;
 4526            this.update_in(cx, move |this, window, cx| -> Option<_> {
 4527                let pane = pane.upgrade()?;
 4528                let new_pane = this.split_pane(
 4529                    pane,
 4530                    split_direction.unwrap_or(SplitDirection::Right),
 4531                    window,
 4532                    cx,
 4533                );
 4534                new_pane.update(cx, |new_pane, cx| {
 4535                    Some(new_pane.open_item(
 4536                        project_entry_id,
 4537                        project_path,
 4538                        true,
 4539                        allow_preview,
 4540                        true,
 4541                        None,
 4542                        window,
 4543                        cx,
 4544                        build_item,
 4545                    ))
 4546                })
 4547            })
 4548            .map(|option| option.context("pane was dropped"))?
 4549        })
 4550    }
 4551
 4552    fn load_path(
 4553        &mut self,
 4554        path: ProjectPath,
 4555        window: &mut Window,
 4556        cx: &mut App,
 4557    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
 4558        let registry = cx.default_global::<ProjectItemRegistry>().clone();
 4559        registry.open_path(self.project(), &path, window, cx)
 4560    }
 4561
 4562    pub fn find_project_item<T>(
 4563        &self,
 4564        pane: &Entity<Pane>,
 4565        project_item: &Entity<T::Item>,
 4566        cx: &App,
 4567    ) -> Option<Entity<T>>
 4568    where
 4569        T: ProjectItem,
 4570    {
 4571        use project::ProjectItem as _;
 4572        let project_item = project_item.read(cx);
 4573        let entry_id = project_item.entry_id(cx);
 4574        let project_path = project_item.project_path(cx);
 4575
 4576        let mut item = None;
 4577        if let Some(entry_id) = entry_id {
 4578            item = pane.read(cx).item_for_entry(entry_id, cx);
 4579        }
 4580        if item.is_none()
 4581            && let Some(project_path) = project_path
 4582        {
 4583            item = pane.read(cx).item_for_path(project_path, cx);
 4584        }
 4585
 4586        item.and_then(|item| item.downcast::<T>())
 4587    }
 4588
 4589    pub fn is_project_item_open<T>(
 4590        &self,
 4591        pane: &Entity<Pane>,
 4592        project_item: &Entity<T::Item>,
 4593        cx: &App,
 4594    ) -> bool
 4595    where
 4596        T: ProjectItem,
 4597    {
 4598        self.find_project_item::<T>(pane, project_item, cx)
 4599            .is_some()
 4600    }
 4601
 4602    pub fn open_project_item<T>(
 4603        &mut self,
 4604        pane: Entity<Pane>,
 4605        project_item: Entity<T::Item>,
 4606        activate_pane: bool,
 4607        focus_item: bool,
 4608        keep_old_preview: bool,
 4609        allow_new_preview: bool,
 4610        window: &mut Window,
 4611        cx: &mut Context<Self>,
 4612    ) -> Entity<T>
 4613    where
 4614        T: ProjectItem,
 4615    {
 4616        let old_item_id = pane.read(cx).active_item().map(|item| item.item_id());
 4617
 4618        if let Some(item) = self.find_project_item(&pane, &project_item, cx) {
 4619            if !keep_old_preview
 4620                && let Some(old_id) = old_item_id
 4621                && old_id != item.item_id()
 4622            {
 4623                // switching to a different item, so unpreview old active item
 4624                pane.update(cx, |pane, _| {
 4625                    pane.unpreview_item_if_preview(old_id);
 4626                });
 4627            }
 4628
 4629            self.activate_item(&item, activate_pane, focus_item, window, cx);
 4630            if !allow_new_preview {
 4631                pane.update(cx, |pane, _| {
 4632                    pane.unpreview_item_if_preview(item.item_id());
 4633                });
 4634            }
 4635            return item;
 4636        }
 4637
 4638        let item = pane.update(cx, |pane, cx| {
 4639            cx.new(|cx| {
 4640                T::for_project_item(self.project().clone(), Some(pane), project_item, window, cx)
 4641            })
 4642        });
 4643        let mut destination_index = None;
 4644        pane.update(cx, |pane, cx| {
 4645            if !keep_old_preview && let Some(old_id) = old_item_id {
 4646                pane.unpreview_item_if_preview(old_id);
 4647            }
 4648            if allow_new_preview {
 4649                destination_index = pane.replace_preview_item_id(item.item_id(), window, cx);
 4650            }
 4651        });
 4652
 4653        self.add_item(
 4654            pane,
 4655            Box::new(item.clone()),
 4656            destination_index,
 4657            activate_pane,
 4658            focus_item,
 4659            window,
 4660            cx,
 4661        );
 4662        item
 4663    }
 4664
 4665    pub fn open_shared_screen(
 4666        &mut self,
 4667        peer_id: PeerId,
 4668        window: &mut Window,
 4669        cx: &mut Context<Self>,
 4670    ) {
 4671        if let Some(shared_screen) =
 4672            self.shared_screen_for_peer(peer_id, &self.active_pane, window, cx)
 4673        {
 4674            self.active_pane.update(cx, |pane, cx| {
 4675                pane.add_item(Box::new(shared_screen), false, true, None, window, cx)
 4676            });
 4677        }
 4678    }
 4679
 4680    pub fn activate_item(
 4681        &mut self,
 4682        item: &dyn ItemHandle,
 4683        activate_pane: bool,
 4684        focus_item: bool,
 4685        window: &mut Window,
 4686        cx: &mut App,
 4687    ) -> bool {
 4688        let result = self.panes.iter().find_map(|pane| {
 4689            pane.read(cx)
 4690                .index_for_item(item)
 4691                .map(|ix| (pane.clone(), ix))
 4692        });
 4693        if let Some((pane, ix)) = result {
 4694            pane.update(cx, |pane, cx| {
 4695                pane.activate_item(ix, activate_pane, focus_item, window, cx)
 4696            });
 4697            true
 4698        } else {
 4699            false
 4700        }
 4701    }
 4702
 4703    fn activate_pane_at_index(
 4704        &mut self,
 4705        action: &ActivatePane,
 4706        window: &mut Window,
 4707        cx: &mut Context<Self>,
 4708    ) {
 4709        let panes = self.center.panes();
 4710        if let Some(pane) = panes.get(action.0).map(|p| (*p).clone()) {
 4711            window.focus(&pane.focus_handle(cx), cx);
 4712        } else {
 4713            self.split_and_clone(self.active_pane.clone(), SplitDirection::Right, window, cx)
 4714                .detach();
 4715        }
 4716    }
 4717
 4718    fn move_item_to_pane_at_index(
 4719        &mut self,
 4720        action: &MoveItemToPane,
 4721        window: &mut Window,
 4722        cx: &mut Context<Self>,
 4723    ) {
 4724        let panes = self.center.panes();
 4725        let destination = match panes.get(action.destination) {
 4726            Some(&destination) => destination.clone(),
 4727            None => {
 4728                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 4729                    return;
 4730                }
 4731                let direction = SplitDirection::Right;
 4732                let split_off_pane = self
 4733                    .find_pane_in_direction(direction, cx)
 4734                    .unwrap_or_else(|| self.active_pane.clone());
 4735                let new_pane = self.add_pane(window, cx);
 4736                self.center.split(&split_off_pane, &new_pane, direction, cx);
 4737                new_pane
 4738            }
 4739        };
 4740
 4741        if action.clone {
 4742            if self
 4743                .active_pane
 4744                .read(cx)
 4745                .active_item()
 4746                .is_some_and(|item| item.can_split(cx))
 4747            {
 4748                clone_active_item(
 4749                    self.database_id(),
 4750                    &self.active_pane,
 4751                    &destination,
 4752                    action.focus,
 4753                    window,
 4754                    cx,
 4755                );
 4756                return;
 4757            }
 4758        }
 4759        move_active_item(
 4760            &self.active_pane,
 4761            &destination,
 4762            action.focus,
 4763            true,
 4764            window,
 4765            cx,
 4766        )
 4767    }
 4768
 4769    pub fn activate_next_pane(&mut self, window: &mut Window, cx: &mut App) {
 4770        let panes = self.center.panes();
 4771        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 4772            let next_ix = (ix + 1) % panes.len();
 4773            let next_pane = panes[next_ix].clone();
 4774            window.focus(&next_pane.focus_handle(cx), cx);
 4775        }
 4776    }
 4777
 4778    pub fn activate_previous_pane(&mut self, window: &mut Window, cx: &mut App) {
 4779        let panes = self.center.panes();
 4780        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 4781            let prev_ix = cmp::min(ix.wrapping_sub(1), panes.len() - 1);
 4782            let prev_pane = panes[prev_ix].clone();
 4783            window.focus(&prev_pane.focus_handle(cx), cx);
 4784        }
 4785    }
 4786
 4787    pub fn activate_last_pane(&mut self, window: &mut Window, cx: &mut App) {
 4788        let last_pane = self.center.last_pane();
 4789        window.focus(&last_pane.focus_handle(cx), cx);
 4790    }
 4791
 4792    pub fn activate_pane_in_direction(
 4793        &mut self,
 4794        direction: SplitDirection,
 4795        window: &mut Window,
 4796        cx: &mut App,
 4797    ) {
 4798        use ActivateInDirectionTarget as Target;
 4799        enum Origin {
 4800            Sidebar,
 4801            LeftDock,
 4802            RightDock,
 4803            BottomDock,
 4804            Center,
 4805        }
 4806
 4807        let origin: Origin = if self
 4808            .sidebar_focus_handle
 4809            .as_ref()
 4810            .is_some_and(|h| h.contains_focused(window, cx))
 4811        {
 4812            Origin::Sidebar
 4813        } else {
 4814            [
 4815                (&self.left_dock, Origin::LeftDock),
 4816                (&self.right_dock, Origin::RightDock),
 4817                (&self.bottom_dock, Origin::BottomDock),
 4818            ]
 4819            .into_iter()
 4820            .find_map(|(dock, origin)| {
 4821                if dock.focus_handle(cx).contains_focused(window, cx) && dock.read(cx).is_open() {
 4822                    Some(origin)
 4823                } else {
 4824                    None
 4825                }
 4826            })
 4827            .unwrap_or(Origin::Center)
 4828        };
 4829
 4830        let get_last_active_pane = || {
 4831            let pane = self
 4832                .last_active_center_pane
 4833                .clone()
 4834                .unwrap_or_else(|| {
 4835                    self.panes
 4836                        .first()
 4837                        .expect("There must be an active pane")
 4838                        .downgrade()
 4839                })
 4840                .upgrade()?;
 4841            (pane.read(cx).items_len() != 0).then_some(pane)
 4842        };
 4843
 4844        let try_dock =
 4845            |dock: &Entity<Dock>| dock.read(cx).is_open().then(|| Target::Dock(dock.clone()));
 4846
 4847        let sidebar_target = self
 4848            .sidebar_focus_handle
 4849            .as_ref()
 4850            .map(|h| Target::Sidebar(h.clone()));
 4851
 4852        let sidebar_on_right = self
 4853            .multi_workspace
 4854            .as_ref()
 4855            .and_then(|mw| mw.upgrade())
 4856            .map_or(false, |mw| {
 4857                mw.read(cx).sidebar_side(cx) == SidebarSide::Right
 4858            });
 4859
 4860        let away_from_sidebar = if sidebar_on_right {
 4861            SplitDirection::Left
 4862        } else {
 4863            SplitDirection::Right
 4864        };
 4865
 4866        let (near_dock, far_dock) = if sidebar_on_right {
 4867            (&self.right_dock, &self.left_dock)
 4868        } else {
 4869            (&self.left_dock, &self.right_dock)
 4870        };
 4871
 4872        let target = match (origin, direction) {
 4873            (Origin::Sidebar, dir) if dir == away_from_sidebar => try_dock(near_dock)
 4874                .or_else(|| get_last_active_pane().map(Target::Pane))
 4875                .or_else(|| try_dock(&self.bottom_dock))
 4876                .or_else(|| try_dock(far_dock)),
 4877
 4878            (Origin::Sidebar, _) => None,
 4879
 4880            // We're in the center, so we first try to go to a different pane,
 4881            // otherwise try to go to a dock.
 4882            (Origin::Center, direction) => {
 4883                if let Some(pane) = self.find_pane_in_direction(direction, cx) {
 4884                    Some(Target::Pane(pane))
 4885                } else {
 4886                    match direction {
 4887                        SplitDirection::Up => None,
 4888                        SplitDirection::Down => try_dock(&self.bottom_dock),
 4889                        SplitDirection::Left => {
 4890                            let dock_target = try_dock(&self.left_dock);
 4891                            if sidebar_on_right {
 4892                                dock_target
 4893                            } else {
 4894                                dock_target.or(sidebar_target)
 4895                            }
 4896                        }
 4897                        SplitDirection::Right => {
 4898                            let dock_target = try_dock(&self.right_dock);
 4899                            if sidebar_on_right {
 4900                                dock_target.or(sidebar_target)
 4901                            } else {
 4902                                dock_target
 4903                            }
 4904                        }
 4905                    }
 4906                }
 4907            }
 4908
 4909            (Origin::LeftDock, SplitDirection::Right) => {
 4910                if let Some(last_active_pane) = get_last_active_pane() {
 4911                    Some(Target::Pane(last_active_pane))
 4912                } else {
 4913                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.right_dock))
 4914                }
 4915            }
 4916
 4917            (Origin::LeftDock, SplitDirection::Left) => {
 4918                if sidebar_on_right {
 4919                    None
 4920                } else {
 4921                    sidebar_target
 4922                }
 4923            }
 4924
 4925            (Origin::LeftDock, SplitDirection::Down)
 4926            | (Origin::RightDock, SplitDirection::Down) => try_dock(&self.bottom_dock),
 4927
 4928            (Origin::BottomDock, SplitDirection::Up) => get_last_active_pane().map(Target::Pane),
 4929            (Origin::BottomDock, SplitDirection::Left) => {
 4930                let dock_target = try_dock(&self.left_dock);
 4931                if sidebar_on_right {
 4932                    dock_target
 4933                } else {
 4934                    dock_target.or(sidebar_target)
 4935                }
 4936            }
 4937            (Origin::BottomDock, SplitDirection::Right) => {
 4938                let dock_target = try_dock(&self.right_dock);
 4939                if sidebar_on_right {
 4940                    dock_target.or(sidebar_target)
 4941                } else {
 4942                    dock_target
 4943                }
 4944            }
 4945
 4946            (Origin::RightDock, SplitDirection::Left) => {
 4947                if let Some(last_active_pane) = get_last_active_pane() {
 4948                    Some(Target::Pane(last_active_pane))
 4949                } else {
 4950                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.left_dock))
 4951                }
 4952            }
 4953
 4954            (Origin::RightDock, SplitDirection::Right) => {
 4955                if sidebar_on_right {
 4956                    sidebar_target
 4957                } else {
 4958                    None
 4959                }
 4960            }
 4961
 4962            _ => None,
 4963        };
 4964
 4965        match target {
 4966            Some(ActivateInDirectionTarget::Pane(pane)) => {
 4967                let pane = pane.read(cx);
 4968                if let Some(item) = pane.active_item() {
 4969                    item.item_focus_handle(cx).focus(window, cx);
 4970                } else {
 4971                    log::error!(
 4972                        "Could not find a focus target when in switching focus in {direction} direction for a pane",
 4973                    );
 4974                }
 4975            }
 4976            Some(ActivateInDirectionTarget::Dock(dock)) => {
 4977                // Defer this to avoid a panic when the dock's active panel is already on the stack.
 4978                window.defer(cx, move |window, cx| {
 4979                    let dock = dock.read(cx);
 4980                    if let Some(panel) = dock.active_panel() {
 4981                        panel.panel_focus_handle(cx).focus(window, cx);
 4982                    } else {
 4983                        log::error!("Could not find a focus target when in switching focus in {direction} direction for a {:?} dock", dock.position());
 4984                    }
 4985                })
 4986            }
 4987            Some(ActivateInDirectionTarget::Sidebar(focus_handle)) => {
 4988                focus_handle.focus(window, cx);
 4989            }
 4990            None => {}
 4991        }
 4992    }
 4993
 4994    pub fn move_item_to_pane_in_direction(
 4995        &mut self,
 4996        action: &MoveItemToPaneInDirection,
 4997        window: &mut Window,
 4998        cx: &mut Context<Self>,
 4999    ) {
 5000        let destination = match self.find_pane_in_direction(action.direction, cx) {
 5001            Some(destination) => destination,
 5002            None => {
 5003                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 5004                    return;
 5005                }
 5006                let new_pane = self.add_pane(window, cx);
 5007                self.center
 5008                    .split(&self.active_pane, &new_pane, action.direction, cx);
 5009                new_pane
 5010            }
 5011        };
 5012
 5013        if action.clone {
 5014            if self
 5015                .active_pane
 5016                .read(cx)
 5017                .active_item()
 5018                .is_some_and(|item| item.can_split(cx))
 5019            {
 5020                clone_active_item(
 5021                    self.database_id(),
 5022                    &self.active_pane,
 5023                    &destination,
 5024                    action.focus,
 5025                    window,
 5026                    cx,
 5027                );
 5028                return;
 5029            }
 5030        }
 5031        move_active_item(
 5032            &self.active_pane,
 5033            &destination,
 5034            action.focus,
 5035            true,
 5036            window,
 5037            cx,
 5038        );
 5039    }
 5040
 5041    pub fn bounding_box_for_pane(&self, pane: &Entity<Pane>) -> Option<Bounds<Pixels>> {
 5042        self.center.bounding_box_for_pane(pane)
 5043    }
 5044
 5045    pub fn find_pane_in_direction(
 5046        &mut self,
 5047        direction: SplitDirection,
 5048        cx: &App,
 5049    ) -> Option<Entity<Pane>> {
 5050        self.center
 5051            .find_pane_in_direction(&self.active_pane, direction, cx)
 5052            .cloned()
 5053    }
 5054
 5055    pub fn swap_pane_in_direction(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 5056        if let Some(to) = self.find_pane_in_direction(direction, cx) {
 5057            self.center.swap(&self.active_pane, &to, cx);
 5058            cx.notify();
 5059        }
 5060    }
 5061
 5062    pub fn move_pane_to_border(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 5063        if self
 5064            .center
 5065            .move_to_border(&self.active_pane, direction, cx)
 5066            .unwrap()
 5067        {
 5068            cx.notify();
 5069        }
 5070    }
 5071
 5072    pub fn resize_pane(
 5073        &mut self,
 5074        axis: gpui::Axis,
 5075        amount: Pixels,
 5076        window: &mut Window,
 5077        cx: &mut Context<Self>,
 5078    ) {
 5079        let docks = self.all_docks();
 5080        let active_dock = docks
 5081            .into_iter()
 5082            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 5083
 5084        if let Some(dock_entity) = active_dock {
 5085            let dock = dock_entity.read(cx);
 5086            let Some(panel_size) = self.dock_size(&dock, window, cx) else {
 5087                return;
 5088            };
 5089            match dock.position() {
 5090                DockPosition::Left => self.resize_left_dock(panel_size + amount, window, cx),
 5091                DockPosition::Bottom => self.resize_bottom_dock(panel_size + amount, window, cx),
 5092                DockPosition::Right => self.resize_right_dock(panel_size + amount, window, cx),
 5093            }
 5094        } else {
 5095            self.center
 5096                .resize(&self.active_pane, axis, amount, &self.bounds, cx);
 5097        }
 5098        cx.notify();
 5099    }
 5100
 5101    pub fn reset_pane_sizes(&mut self, cx: &mut Context<Self>) {
 5102        self.center.reset_pane_sizes(cx);
 5103        cx.notify();
 5104    }
 5105
 5106    fn handle_pane_focused(
 5107        &mut self,
 5108        pane: Entity<Pane>,
 5109        window: &mut Window,
 5110        cx: &mut Context<Self>,
 5111    ) {
 5112        // This is explicitly hoisted out of the following check for pane identity as
 5113        // terminal panel panes are not registered as a center panes.
 5114        self.status_bar.update(cx, |status_bar, cx| {
 5115            status_bar.set_active_pane(&pane, window, cx);
 5116        });
 5117        if self.active_pane != pane {
 5118            self.set_active_pane(&pane, window, cx);
 5119        }
 5120
 5121        if self.last_active_center_pane.is_none() {
 5122            self.last_active_center_pane = Some(pane.downgrade());
 5123        }
 5124
 5125        // If this pane is in a dock, preserve that dock when dismissing zoomed items.
 5126        // This prevents the dock from closing when focus events fire during window activation.
 5127        // We also preserve any dock whose active panel itself has focus — this covers
 5128        // panels like AgentPanel that don't implement `pane()` but can still be zoomed.
 5129        let dock_to_preserve = self.all_docks().iter().find_map(|dock| {
 5130            let dock_read = dock.read(cx);
 5131            if let Some(panel) = dock_read.active_panel() {
 5132                if panel.pane(cx).is_some_and(|dock_pane| dock_pane == pane)
 5133                    || panel.panel_focus_handle(cx).contains_focused(window, cx)
 5134                {
 5135                    return Some(dock_read.position());
 5136                }
 5137            }
 5138            None
 5139        });
 5140
 5141        self.dismiss_zoomed_items_to_reveal(dock_to_preserve, window, cx);
 5142        if pane.read(cx).is_zoomed() {
 5143            self.zoomed = Some(pane.downgrade().into());
 5144        } else {
 5145            self.zoomed = None;
 5146        }
 5147        self.zoomed_position = None;
 5148        cx.emit(Event::ZoomChanged);
 5149        self.update_active_view_for_followers(window, cx);
 5150        pane.update(cx, |pane, _| {
 5151            pane.track_alternate_file_items();
 5152        });
 5153
 5154        cx.notify();
 5155    }
 5156
 5157    fn set_active_pane(
 5158        &mut self,
 5159        pane: &Entity<Pane>,
 5160        window: &mut Window,
 5161        cx: &mut Context<Self>,
 5162    ) {
 5163        self.active_pane = pane.clone();
 5164        self.active_item_path_changed(true, window, cx);
 5165        self.last_active_center_pane = Some(pane.downgrade());
 5166    }
 5167
 5168    fn handle_panel_focused(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5169        self.update_active_view_for_followers(window, cx);
 5170    }
 5171
 5172    fn handle_pane_event(
 5173        &mut self,
 5174        pane: &Entity<Pane>,
 5175        event: &pane::Event,
 5176        window: &mut Window,
 5177        cx: &mut Context<Self>,
 5178    ) {
 5179        let mut serialize_workspace = true;
 5180        match event {
 5181            pane::Event::AddItem { item } => {
 5182                item.added_to_pane(self, pane.clone(), window, cx);
 5183                cx.emit(Event::ItemAdded {
 5184                    item: item.boxed_clone(),
 5185                });
 5186            }
 5187            pane::Event::Split { direction, mode } => {
 5188                match mode {
 5189                    SplitMode::ClonePane => {
 5190                        self.split_and_clone(pane.clone(), *direction, window, cx)
 5191                            .detach();
 5192                    }
 5193                    SplitMode::EmptyPane => {
 5194                        self.split_pane(pane.clone(), *direction, window, cx);
 5195                    }
 5196                    SplitMode::MovePane => {
 5197                        self.split_and_move(pane.clone(), *direction, window, cx);
 5198                    }
 5199                };
 5200            }
 5201            pane::Event::JoinIntoNext => {
 5202                self.join_pane_into_next(pane.clone(), window, cx);
 5203            }
 5204            pane::Event::JoinAll => {
 5205                self.join_all_panes(window, cx);
 5206            }
 5207            pane::Event::Remove { focus_on_pane } => {
 5208                self.remove_pane(pane.clone(), focus_on_pane.clone(), window, cx);
 5209            }
 5210            pane::Event::ActivateItem {
 5211                local,
 5212                focus_changed,
 5213            } => {
 5214                window.invalidate_character_coordinates();
 5215
 5216                pane.update(cx, |pane, _| {
 5217                    pane.track_alternate_file_items();
 5218                });
 5219                if *local {
 5220                    self.unfollow_in_pane(pane, window, cx);
 5221                }
 5222                serialize_workspace = *focus_changed || pane != self.active_pane();
 5223                if pane == self.active_pane() {
 5224                    self.active_item_path_changed(*focus_changed, window, cx);
 5225                    self.update_active_view_for_followers(window, cx);
 5226                } else if *local {
 5227                    self.set_active_pane(pane, window, cx);
 5228                }
 5229            }
 5230            pane::Event::UserSavedItem { item, save_intent } => {
 5231                cx.emit(Event::UserSavedItem {
 5232                    pane: pane.downgrade(),
 5233                    item: item.boxed_clone(),
 5234                    save_intent: *save_intent,
 5235                });
 5236                serialize_workspace = false;
 5237            }
 5238            pane::Event::ChangeItemTitle => {
 5239                if *pane == self.active_pane {
 5240                    self.active_item_path_changed(false, window, cx);
 5241                }
 5242                serialize_workspace = false;
 5243            }
 5244            pane::Event::RemovedItem { item } => {
 5245                cx.emit(Event::ActiveItemChanged);
 5246                self.update_window_edited(window, cx);
 5247                if let hash_map::Entry::Occupied(entry) = self.panes_by_item.entry(item.item_id())
 5248                    && entry.get().entity_id() == pane.entity_id()
 5249                {
 5250                    entry.remove();
 5251                }
 5252                cx.emit(Event::ItemRemoved {
 5253                    item_id: item.item_id(),
 5254                });
 5255            }
 5256            pane::Event::Focus => {
 5257                window.invalidate_character_coordinates();
 5258                self.handle_pane_focused(pane.clone(), window, cx);
 5259            }
 5260            pane::Event::ZoomIn => {
 5261                if *pane == self.active_pane {
 5262                    pane.update(cx, |pane, cx| pane.set_zoomed(true, cx));
 5263                    if pane.read(cx).has_focus(window, cx) {
 5264                        self.zoomed = Some(pane.downgrade().into());
 5265                        self.zoomed_position = None;
 5266                        cx.emit(Event::ZoomChanged);
 5267                    }
 5268                    cx.notify();
 5269                }
 5270            }
 5271            pane::Event::ZoomOut => {
 5272                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 5273                if self.zoomed_position.is_none() {
 5274                    self.zoomed = None;
 5275                    cx.emit(Event::ZoomChanged);
 5276                }
 5277                cx.notify();
 5278            }
 5279            pane::Event::ItemPinned | pane::Event::ItemUnpinned => {}
 5280        }
 5281
 5282        if serialize_workspace {
 5283            self.serialize_workspace(window, cx);
 5284        }
 5285    }
 5286
 5287    pub fn unfollow_in_pane(
 5288        &mut self,
 5289        pane: &Entity<Pane>,
 5290        window: &mut Window,
 5291        cx: &mut Context<Workspace>,
 5292    ) -> Option<CollaboratorId> {
 5293        let leader_id = self.leader_for_pane(pane)?;
 5294        self.unfollow(leader_id, window, cx);
 5295        Some(leader_id)
 5296    }
 5297
 5298    pub fn split_pane(
 5299        &mut self,
 5300        pane_to_split: Entity<Pane>,
 5301        split_direction: SplitDirection,
 5302        window: &mut Window,
 5303        cx: &mut Context<Self>,
 5304    ) -> Entity<Pane> {
 5305        let new_pane = self.add_pane(window, cx);
 5306        self.center
 5307            .split(&pane_to_split, &new_pane, split_direction, cx);
 5308        cx.notify();
 5309        new_pane
 5310    }
 5311
 5312    pub fn split_and_move(
 5313        &mut self,
 5314        pane: Entity<Pane>,
 5315        direction: SplitDirection,
 5316        window: &mut Window,
 5317        cx: &mut Context<Self>,
 5318    ) {
 5319        let Some(item) = pane.update(cx, |pane, cx| pane.take_active_item(window, cx)) else {
 5320            return;
 5321        };
 5322        let new_pane = self.add_pane(window, cx);
 5323        new_pane.update(cx, |pane, cx| {
 5324            pane.add_item(item, true, true, None, window, cx)
 5325        });
 5326        self.center.split(&pane, &new_pane, direction, cx);
 5327        cx.notify();
 5328    }
 5329
 5330    pub fn split_and_clone(
 5331        &mut self,
 5332        pane: Entity<Pane>,
 5333        direction: SplitDirection,
 5334        window: &mut Window,
 5335        cx: &mut Context<Self>,
 5336    ) -> Task<Option<Entity<Pane>>> {
 5337        let Some(item) = pane.read(cx).active_item() else {
 5338            return Task::ready(None);
 5339        };
 5340        if !item.can_split(cx) {
 5341            return Task::ready(None);
 5342        }
 5343        let task = item.clone_on_split(self.database_id(), window, cx);
 5344        cx.spawn_in(window, async move |this, cx| {
 5345            if let Some(clone) = task.await {
 5346                this.update_in(cx, |this, window, cx| {
 5347                    let new_pane = this.add_pane(window, cx);
 5348                    let nav_history = pane.read(cx).fork_nav_history();
 5349                    new_pane.update(cx, |pane, cx| {
 5350                        pane.set_nav_history(nav_history, cx);
 5351                        pane.add_item(clone, true, true, None, window, cx)
 5352                    });
 5353                    this.center.split(&pane, &new_pane, direction, cx);
 5354                    cx.notify();
 5355                    new_pane
 5356                })
 5357                .ok()
 5358            } else {
 5359                None
 5360            }
 5361        })
 5362    }
 5363
 5364    pub fn join_all_panes(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5365        let active_item = self.active_pane.read(cx).active_item();
 5366        for pane in &self.panes {
 5367            join_pane_into_active(&self.active_pane, pane, window, cx);
 5368        }
 5369        if let Some(active_item) = active_item {
 5370            self.activate_item(active_item.as_ref(), true, true, window, cx);
 5371        }
 5372        cx.notify();
 5373    }
 5374
 5375    pub fn join_pane_into_next(
 5376        &mut self,
 5377        pane: Entity<Pane>,
 5378        window: &mut Window,
 5379        cx: &mut Context<Self>,
 5380    ) {
 5381        let next_pane = self
 5382            .find_pane_in_direction(SplitDirection::Right, cx)
 5383            .or_else(|| self.find_pane_in_direction(SplitDirection::Down, cx))
 5384            .or_else(|| self.find_pane_in_direction(SplitDirection::Left, cx))
 5385            .or_else(|| self.find_pane_in_direction(SplitDirection::Up, cx));
 5386        let Some(next_pane) = next_pane else {
 5387            return;
 5388        };
 5389        move_all_items(&pane, &next_pane, window, cx);
 5390        cx.notify();
 5391    }
 5392
 5393    fn remove_pane(
 5394        &mut self,
 5395        pane: Entity<Pane>,
 5396        focus_on: Option<Entity<Pane>>,
 5397        window: &mut Window,
 5398        cx: &mut Context<Self>,
 5399    ) {
 5400        if self.center.remove(&pane, cx).unwrap() {
 5401            self.force_remove_pane(&pane, &focus_on, window, cx);
 5402            self.unfollow_in_pane(&pane, window, cx);
 5403            self.last_leaders_by_pane.remove(&pane.downgrade());
 5404            for removed_item in pane.read(cx).items() {
 5405                self.panes_by_item.remove(&removed_item.item_id());
 5406            }
 5407
 5408            cx.notify();
 5409        } else {
 5410            self.active_item_path_changed(true, window, cx);
 5411        }
 5412        cx.emit(Event::PaneRemoved);
 5413    }
 5414
 5415    pub fn panes_mut(&mut self) -> &mut [Entity<Pane>] {
 5416        &mut self.panes
 5417    }
 5418
 5419    pub fn panes(&self) -> &[Entity<Pane>] {
 5420        &self.panes
 5421    }
 5422
 5423    pub fn active_pane(&self) -> &Entity<Pane> {
 5424        &self.active_pane
 5425    }
 5426
 5427    pub fn focused_pane(&self, window: &Window, cx: &App) -> Entity<Pane> {
 5428        for dock in self.all_docks() {
 5429            if dock.focus_handle(cx).contains_focused(window, cx)
 5430                && let Some(pane) = dock
 5431                    .read(cx)
 5432                    .active_panel()
 5433                    .and_then(|panel| panel.pane(cx))
 5434            {
 5435                return pane;
 5436            }
 5437        }
 5438        self.active_pane().clone()
 5439    }
 5440
 5441    pub fn adjacent_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 5442        self.find_pane_in_direction(SplitDirection::Right, cx)
 5443            .unwrap_or_else(|| {
 5444                self.split_pane(self.active_pane.clone(), SplitDirection::Right, window, cx)
 5445            })
 5446    }
 5447
 5448    pub fn pane_for(&self, handle: &dyn ItemHandle) -> Option<Entity<Pane>> {
 5449        self.pane_for_item_id(handle.item_id())
 5450    }
 5451
 5452    pub fn pane_for_item_id(&self, item_id: EntityId) -> Option<Entity<Pane>> {
 5453        let weak_pane = self.panes_by_item.get(&item_id)?;
 5454        weak_pane.upgrade()
 5455    }
 5456
 5457    pub fn pane_for_entity_id(&self, entity_id: EntityId) -> Option<Entity<Pane>> {
 5458        self.panes
 5459            .iter()
 5460            .find(|pane| pane.entity_id() == entity_id)
 5461            .cloned()
 5462    }
 5463
 5464    fn collaborator_left(&mut self, peer_id: PeerId, window: &mut Window, cx: &mut Context<Self>) {
 5465        self.follower_states.retain(|leader_id, state| {
 5466            if *leader_id == CollaboratorId::PeerId(peer_id) {
 5467                for item in state.items_by_leader_view_id.values() {
 5468                    item.view.set_leader_id(None, window, cx);
 5469                }
 5470                false
 5471            } else {
 5472                true
 5473            }
 5474        });
 5475        cx.notify();
 5476    }
 5477
 5478    pub fn start_following(
 5479        &mut self,
 5480        leader_id: impl Into<CollaboratorId>,
 5481        window: &mut Window,
 5482        cx: &mut Context<Self>,
 5483    ) -> Option<Task<Result<()>>> {
 5484        let leader_id = leader_id.into();
 5485        let pane = self.active_pane().clone();
 5486
 5487        self.last_leaders_by_pane
 5488            .insert(pane.downgrade(), leader_id);
 5489        self.unfollow(leader_id, window, cx);
 5490        self.unfollow_in_pane(&pane, window, cx);
 5491        self.follower_states.insert(
 5492            leader_id,
 5493            FollowerState {
 5494                center_pane: pane.clone(),
 5495                dock_pane: None,
 5496                active_view_id: None,
 5497                items_by_leader_view_id: Default::default(),
 5498            },
 5499        );
 5500        cx.notify();
 5501
 5502        match leader_id {
 5503            CollaboratorId::PeerId(leader_peer_id) => {
 5504                let room_id = self.active_call()?.room_id(cx)?;
 5505                let project_id = self.project.read(cx).remote_id();
 5506                let request = self.app_state.client.request(proto::Follow {
 5507                    room_id,
 5508                    project_id,
 5509                    leader_id: Some(leader_peer_id),
 5510                });
 5511
 5512                Some(cx.spawn_in(window, async move |this, cx| {
 5513                    let response = request.await?;
 5514                    this.update(cx, |this, _| {
 5515                        let state = this
 5516                            .follower_states
 5517                            .get_mut(&leader_id)
 5518                            .context("following interrupted")?;
 5519                        state.active_view_id = response
 5520                            .active_view
 5521                            .as_ref()
 5522                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 5523                        anyhow::Ok(())
 5524                    })??;
 5525                    if let Some(view) = response.active_view {
 5526                        Self::add_view_from_leader(this.clone(), leader_peer_id, &view, cx).await?;
 5527                    }
 5528                    this.update_in(cx, |this, window, cx| {
 5529                        this.leader_updated(leader_id, window, cx)
 5530                    })?;
 5531                    Ok(())
 5532                }))
 5533            }
 5534            CollaboratorId::Agent => {
 5535                self.leader_updated(leader_id, window, cx)?;
 5536                Some(Task::ready(Ok(())))
 5537            }
 5538        }
 5539    }
 5540
 5541    pub fn follow_next_collaborator(
 5542        &mut self,
 5543        _: &FollowNextCollaborator,
 5544        window: &mut Window,
 5545        cx: &mut Context<Self>,
 5546    ) {
 5547        let collaborators = self.project.read(cx).collaborators();
 5548        let next_leader_id = if let Some(leader_id) = self.leader_for_pane(&self.active_pane) {
 5549            let mut collaborators = collaborators.keys().copied();
 5550            for peer_id in collaborators.by_ref() {
 5551                if CollaboratorId::PeerId(peer_id) == leader_id {
 5552                    break;
 5553                }
 5554            }
 5555            collaborators.next().map(CollaboratorId::PeerId)
 5556        } else if let Some(last_leader_id) =
 5557            self.last_leaders_by_pane.get(&self.active_pane.downgrade())
 5558        {
 5559            match last_leader_id {
 5560                CollaboratorId::PeerId(peer_id) => {
 5561                    if collaborators.contains_key(peer_id) {
 5562                        Some(*last_leader_id)
 5563                    } else {
 5564                        None
 5565                    }
 5566                }
 5567                CollaboratorId::Agent => Some(CollaboratorId::Agent),
 5568            }
 5569        } else {
 5570            None
 5571        };
 5572
 5573        let pane = self.active_pane.clone();
 5574        let Some(leader_id) = next_leader_id.or_else(|| {
 5575            Some(CollaboratorId::PeerId(
 5576                collaborators.keys().copied().next()?,
 5577            ))
 5578        }) else {
 5579            return;
 5580        };
 5581        if self.unfollow_in_pane(&pane, window, cx) == Some(leader_id) {
 5582            return;
 5583        }
 5584        if let Some(task) = self.start_following(leader_id, window, cx) {
 5585            task.detach_and_log_err(cx)
 5586        }
 5587    }
 5588
 5589    pub fn follow(
 5590        &mut self,
 5591        leader_id: impl Into<CollaboratorId>,
 5592        window: &mut Window,
 5593        cx: &mut Context<Self>,
 5594    ) {
 5595        let leader_id = leader_id.into();
 5596
 5597        if let CollaboratorId::PeerId(peer_id) = leader_id {
 5598            let Some(active_call) = GlobalAnyActiveCall::try_global(cx) else {
 5599                return;
 5600            };
 5601            let Some(remote_participant) =
 5602                active_call.0.remote_participant_for_peer_id(peer_id, cx)
 5603            else {
 5604                return;
 5605            };
 5606
 5607            let project = self.project.read(cx);
 5608
 5609            let other_project_id = match remote_participant.location {
 5610                ParticipantLocation::External => None,
 5611                ParticipantLocation::UnsharedProject => None,
 5612                ParticipantLocation::SharedProject { project_id } => {
 5613                    if Some(project_id) == project.remote_id() {
 5614                        None
 5615                    } else {
 5616                        Some(project_id)
 5617                    }
 5618                }
 5619            };
 5620
 5621            // if they are active in another project, follow there.
 5622            if let Some(project_id) = other_project_id {
 5623                let app_state = self.app_state.clone();
 5624                crate::join_in_room_project(project_id, remote_participant.user.id, app_state, cx)
 5625                    .detach_and_prompt_err("Failed to join project", window, cx, |error, _, _| {
 5626                        Some(format!("{error:#}"))
 5627                    });
 5628            }
 5629        }
 5630
 5631        // if you're already following, find the right pane and focus it.
 5632        if let Some(follower_state) = self.follower_states.get(&leader_id) {
 5633            window.focus(&follower_state.pane().focus_handle(cx), cx);
 5634
 5635            return;
 5636        }
 5637
 5638        // Otherwise, follow.
 5639        if let Some(task) = self.start_following(leader_id, window, cx) {
 5640            task.detach_and_log_err(cx)
 5641        }
 5642    }
 5643
 5644    pub fn unfollow(
 5645        &mut self,
 5646        leader_id: impl Into<CollaboratorId>,
 5647        window: &mut Window,
 5648        cx: &mut Context<Self>,
 5649    ) -> Option<()> {
 5650        cx.notify();
 5651
 5652        let leader_id = leader_id.into();
 5653        let state = self.follower_states.remove(&leader_id)?;
 5654        for (_, item) in state.items_by_leader_view_id {
 5655            item.view.set_leader_id(None, window, cx);
 5656        }
 5657
 5658        if let CollaboratorId::PeerId(leader_peer_id) = leader_id {
 5659            let project_id = self.project.read(cx).remote_id();
 5660            let room_id = self.active_call()?.room_id(cx)?;
 5661            self.app_state
 5662                .client
 5663                .send(proto::Unfollow {
 5664                    room_id,
 5665                    project_id,
 5666                    leader_id: Some(leader_peer_id),
 5667                })
 5668                .log_err();
 5669        }
 5670
 5671        Some(())
 5672    }
 5673
 5674    pub fn is_being_followed(&self, id: impl Into<CollaboratorId>) -> bool {
 5675        self.follower_states.contains_key(&id.into())
 5676    }
 5677
 5678    fn active_item_path_changed(
 5679        &mut self,
 5680        focus_changed: bool,
 5681        window: &mut Window,
 5682        cx: &mut Context<Self>,
 5683    ) {
 5684        cx.emit(Event::ActiveItemChanged);
 5685        let active_entry = self.active_project_path(cx);
 5686        self.project.update(cx, |project, cx| {
 5687            project.set_active_path(active_entry.clone(), cx)
 5688        });
 5689
 5690        if focus_changed && let Some(project_path) = &active_entry {
 5691            let git_store_entity = self.project.read(cx).git_store().clone();
 5692            git_store_entity.update(cx, |git_store, cx| {
 5693                git_store.set_active_repo_for_path(project_path, cx);
 5694            });
 5695        }
 5696
 5697        self.update_window_title(window, cx);
 5698    }
 5699
 5700    fn update_window_title(&mut self, window: &mut Window, cx: &mut App) {
 5701        let project = self.project().read(cx);
 5702        let mut title = String::new();
 5703
 5704        for (i, worktree) in project.visible_worktrees(cx).enumerate() {
 5705            let name = {
 5706                let settings_location = SettingsLocation {
 5707                    worktree_id: worktree.read(cx).id(),
 5708                    path: RelPath::empty(),
 5709                };
 5710
 5711                let settings = WorktreeSettings::get(Some(settings_location), cx);
 5712                match &settings.project_name {
 5713                    Some(name) => name.as_str(),
 5714                    None => worktree.read(cx).root_name_str(),
 5715                }
 5716            };
 5717            if i > 0 {
 5718                title.push_str(", ");
 5719            }
 5720            title.push_str(name);
 5721        }
 5722
 5723        if title.is_empty() {
 5724            title = "empty project".to_string();
 5725        }
 5726
 5727        if let Some(path) = self.active_item(cx).and_then(|item| item.project_path(cx)) {
 5728            let filename = path.path.file_name().or_else(|| {
 5729                Some(
 5730                    project
 5731                        .worktree_for_id(path.worktree_id, cx)?
 5732                        .read(cx)
 5733                        .root_name_str(),
 5734                )
 5735            });
 5736
 5737            if let Some(filename) = filename {
 5738                title.push_str("");
 5739                title.push_str(filename.as_ref());
 5740            }
 5741        }
 5742
 5743        if project.is_via_collab() {
 5744            title.push_str("");
 5745        } else if project.is_shared() {
 5746            title.push_str("");
 5747        }
 5748
 5749        if let Some(last_title) = self.last_window_title.as_ref()
 5750            && &title == last_title
 5751        {
 5752            return;
 5753        }
 5754        window.set_window_title(&title);
 5755        SystemWindowTabController::update_tab_title(
 5756            cx,
 5757            window.window_handle().window_id(),
 5758            SharedString::from(&title),
 5759        );
 5760        self.last_window_title = Some(title);
 5761    }
 5762
 5763    fn update_window_edited(&mut self, window: &mut Window, cx: &mut App) {
 5764        let is_edited = !self.project.read(cx).is_disconnected(cx) && !self.dirty_items.is_empty();
 5765        if is_edited != self.window_edited {
 5766            self.window_edited = is_edited;
 5767            window.set_window_edited(self.window_edited)
 5768        }
 5769    }
 5770
 5771    fn update_item_dirty_state(
 5772        &mut self,
 5773        item: &dyn ItemHandle,
 5774        window: &mut Window,
 5775        cx: &mut App,
 5776    ) {
 5777        let is_dirty = item.is_dirty(cx);
 5778        let item_id = item.item_id();
 5779        let was_dirty = self.dirty_items.contains_key(&item_id);
 5780        if is_dirty == was_dirty {
 5781            return;
 5782        }
 5783        if was_dirty {
 5784            self.dirty_items.remove(&item_id);
 5785            self.update_window_edited(window, cx);
 5786            return;
 5787        }
 5788
 5789        let workspace = self.weak_handle();
 5790        let Some(window_handle) = window.window_handle().downcast::<MultiWorkspace>() else {
 5791            return;
 5792        };
 5793        let on_release_callback = Box::new(move |cx: &mut App| {
 5794            window_handle
 5795                .update(cx, |_, window, cx| {
 5796                    workspace
 5797                        .update(cx, |workspace, cx| {
 5798                            workspace.dirty_items.remove(&item_id);
 5799                            workspace.update_window_edited(window, cx)
 5800                        })
 5801                        .ok();
 5802                })
 5803                .ok();
 5804        });
 5805
 5806        let s = item.on_release(cx, on_release_callback);
 5807        self.dirty_items.insert(item_id, s);
 5808        self.update_window_edited(window, cx);
 5809    }
 5810
 5811    fn render_notifications(&self, _window: &mut Window, _cx: &mut Context<Self>) -> Option<Div> {
 5812        if self.notifications.is_empty() {
 5813            None
 5814        } else {
 5815            Some(
 5816                div()
 5817                    .absolute()
 5818                    .right_3()
 5819                    .bottom_3()
 5820                    .w_112()
 5821                    .h_full()
 5822                    .flex()
 5823                    .flex_col()
 5824                    .justify_end()
 5825                    .gap_2()
 5826                    .children(
 5827                        self.notifications
 5828                            .iter()
 5829                            .map(|(_, notification)| notification.clone().into_any()),
 5830                    ),
 5831            )
 5832        }
 5833    }
 5834
 5835    // RPC handlers
 5836
 5837    fn active_view_for_follower(
 5838        &self,
 5839        follower_project_id: Option<u64>,
 5840        window: &mut Window,
 5841        cx: &mut Context<Self>,
 5842    ) -> Option<proto::View> {
 5843        let (item, panel_id) = self.active_item_for_followers(window, cx);
 5844        let item = item?;
 5845        let leader_id = self
 5846            .pane_for(&*item)
 5847            .and_then(|pane| self.leader_for_pane(&pane));
 5848        let leader_peer_id = match leader_id {
 5849            Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 5850            Some(CollaboratorId::Agent) | None => None,
 5851        };
 5852
 5853        let item_handle = item.to_followable_item_handle(cx)?;
 5854        let id = item_handle.remote_id(&self.app_state.client, window, cx)?;
 5855        let variant = item_handle.to_state_proto(window, cx)?;
 5856
 5857        if item_handle.is_project_item(window, cx)
 5858            && (follower_project_id.is_none()
 5859                || follower_project_id != self.project.read(cx).remote_id())
 5860        {
 5861            return None;
 5862        }
 5863
 5864        Some(proto::View {
 5865            id: id.to_proto(),
 5866            leader_id: leader_peer_id,
 5867            variant: Some(variant),
 5868            panel_id: panel_id.map(|id| id as i32),
 5869        })
 5870    }
 5871
 5872    fn handle_follow(
 5873        &mut self,
 5874        follower_project_id: Option<u64>,
 5875        window: &mut Window,
 5876        cx: &mut Context<Self>,
 5877    ) -> proto::FollowResponse {
 5878        let active_view = self.active_view_for_follower(follower_project_id, window, cx);
 5879
 5880        cx.notify();
 5881        proto::FollowResponse {
 5882            views: active_view.iter().cloned().collect(),
 5883            active_view,
 5884        }
 5885    }
 5886
 5887    fn handle_update_followers(
 5888        &mut self,
 5889        leader_id: PeerId,
 5890        message: proto::UpdateFollowers,
 5891        _window: &mut Window,
 5892        _cx: &mut Context<Self>,
 5893    ) {
 5894        self.leader_updates_tx
 5895            .unbounded_send((leader_id, message))
 5896            .ok();
 5897    }
 5898
 5899    async fn process_leader_update(
 5900        this: &WeakEntity<Self>,
 5901        leader_id: PeerId,
 5902        update: proto::UpdateFollowers,
 5903        cx: &mut AsyncWindowContext,
 5904    ) -> Result<()> {
 5905        match update.variant.context("invalid update")? {
 5906            proto::update_followers::Variant::CreateView(view) => {
 5907                let view_id = ViewId::from_proto(view.id.clone().context("invalid view id")?)?;
 5908                let should_add_view = this.update(cx, |this, _| {
 5909                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 5910                        anyhow::Ok(!state.items_by_leader_view_id.contains_key(&view_id))
 5911                    } else {
 5912                        anyhow::Ok(false)
 5913                    }
 5914                })??;
 5915
 5916                if should_add_view {
 5917                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 5918                }
 5919            }
 5920            proto::update_followers::Variant::UpdateActiveView(update_active_view) => {
 5921                let should_add_view = this.update(cx, |this, _| {
 5922                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 5923                        state.active_view_id = update_active_view
 5924                            .view
 5925                            .as_ref()
 5926                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 5927
 5928                        if state.active_view_id.is_some_and(|view_id| {
 5929                            !state.items_by_leader_view_id.contains_key(&view_id)
 5930                        }) {
 5931                            anyhow::Ok(true)
 5932                        } else {
 5933                            anyhow::Ok(false)
 5934                        }
 5935                    } else {
 5936                        anyhow::Ok(false)
 5937                    }
 5938                })??;
 5939
 5940                if should_add_view && let Some(view) = update_active_view.view {
 5941                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 5942                }
 5943            }
 5944            proto::update_followers::Variant::UpdateView(update_view) => {
 5945                let variant = update_view.variant.context("missing update view variant")?;
 5946                let id = update_view.id.context("missing update view id")?;
 5947                let mut tasks = Vec::new();
 5948                this.update_in(cx, |this, window, cx| {
 5949                    let project = this.project.clone();
 5950                    if let Some(state) = this.follower_states.get(&leader_id.into()) {
 5951                        let view_id = ViewId::from_proto(id.clone())?;
 5952                        if let Some(item) = state.items_by_leader_view_id.get(&view_id) {
 5953                            tasks.push(item.view.apply_update_proto(
 5954                                &project,
 5955                                variant.clone(),
 5956                                window,
 5957                                cx,
 5958                            ));
 5959                        }
 5960                    }
 5961                    anyhow::Ok(())
 5962                })??;
 5963                try_join_all(tasks).await.log_err();
 5964            }
 5965        }
 5966        this.update_in(cx, |this, window, cx| {
 5967            this.leader_updated(leader_id, window, cx)
 5968        })?;
 5969        Ok(())
 5970    }
 5971
 5972    async fn add_view_from_leader(
 5973        this: WeakEntity<Self>,
 5974        leader_id: PeerId,
 5975        view: &proto::View,
 5976        cx: &mut AsyncWindowContext,
 5977    ) -> Result<()> {
 5978        let this = this.upgrade().context("workspace dropped")?;
 5979
 5980        let Some(id) = view.id.clone() else {
 5981            anyhow::bail!("no id for view");
 5982        };
 5983        let id = ViewId::from_proto(id)?;
 5984        let panel_id = view.panel_id.and_then(proto::PanelId::from_i32);
 5985
 5986        let pane = this.update(cx, |this, _cx| {
 5987            let state = this
 5988                .follower_states
 5989                .get(&leader_id.into())
 5990                .context("stopped following")?;
 5991            anyhow::Ok(state.pane().clone())
 5992        })?;
 5993        let existing_item = pane.update_in(cx, |pane, window, cx| {
 5994            let client = this.read(cx).client().clone();
 5995            pane.items().find_map(|item| {
 5996                let item = item.to_followable_item_handle(cx)?;
 5997                if item.remote_id(&client, window, cx) == Some(id) {
 5998                    Some(item)
 5999                } else {
 6000                    None
 6001                }
 6002            })
 6003        })?;
 6004        let item = if let Some(existing_item) = existing_item {
 6005            existing_item
 6006        } else {
 6007            let variant = view.variant.clone();
 6008            anyhow::ensure!(variant.is_some(), "missing view variant");
 6009
 6010            let task = cx.update(|window, cx| {
 6011                FollowableViewRegistry::from_state_proto(this.clone(), id, variant, window, cx)
 6012            })?;
 6013
 6014            let Some(task) = task else {
 6015                anyhow::bail!(
 6016                    "failed to construct view from leader (maybe from a different version of zed?)"
 6017                );
 6018            };
 6019
 6020            let mut new_item = task.await?;
 6021            pane.update_in(cx, |pane, window, cx| {
 6022                let mut item_to_remove = None;
 6023                for (ix, item) in pane.items().enumerate() {
 6024                    if let Some(item) = item.to_followable_item_handle(cx) {
 6025                        match new_item.dedup(item.as_ref(), window, cx) {
 6026                            Some(item::Dedup::KeepExisting) => {
 6027                                new_item =
 6028                                    item.boxed_clone().to_followable_item_handle(cx).unwrap();
 6029                                break;
 6030                            }
 6031                            Some(item::Dedup::ReplaceExisting) => {
 6032                                item_to_remove = Some((ix, item.item_id()));
 6033                                break;
 6034                            }
 6035                            None => {}
 6036                        }
 6037                    }
 6038                }
 6039
 6040                if let Some((ix, id)) = item_to_remove {
 6041                    pane.remove_item(id, false, false, window, cx);
 6042                    pane.add_item(new_item.boxed_clone(), false, false, Some(ix), window, cx);
 6043                }
 6044            })?;
 6045
 6046            new_item
 6047        };
 6048
 6049        this.update_in(cx, |this, window, cx| {
 6050            let state = this.follower_states.get_mut(&leader_id.into())?;
 6051            item.set_leader_id(Some(leader_id.into()), window, cx);
 6052            state.items_by_leader_view_id.insert(
 6053                id,
 6054                FollowerView {
 6055                    view: item,
 6056                    location: panel_id,
 6057                },
 6058            );
 6059
 6060            Some(())
 6061        })
 6062        .context("no follower state")?;
 6063
 6064        Ok(())
 6065    }
 6066
 6067    fn handle_agent_location_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 6068        let Some(follower_state) = self.follower_states.get_mut(&CollaboratorId::Agent) else {
 6069            return;
 6070        };
 6071
 6072        if let Some(agent_location) = self.project.read(cx).agent_location() {
 6073            let buffer_entity_id = agent_location.buffer.entity_id();
 6074            let view_id = ViewId {
 6075                creator: CollaboratorId::Agent,
 6076                id: buffer_entity_id.as_u64(),
 6077            };
 6078            follower_state.active_view_id = Some(view_id);
 6079
 6080            let item = match follower_state.items_by_leader_view_id.entry(view_id) {
 6081                hash_map::Entry::Occupied(entry) => Some(entry.into_mut()),
 6082                hash_map::Entry::Vacant(entry) => {
 6083                    let existing_view =
 6084                        follower_state
 6085                            .center_pane
 6086                            .read(cx)
 6087                            .items()
 6088                            .find_map(|item| {
 6089                                let item = item.to_followable_item_handle(cx)?;
 6090                                if item.buffer_kind(cx) == ItemBufferKind::Singleton
 6091                                    && item.project_item_model_ids(cx).as_slice()
 6092                                        == [buffer_entity_id]
 6093                                {
 6094                                    Some(item)
 6095                                } else {
 6096                                    None
 6097                                }
 6098                            });
 6099                    let view = existing_view.or_else(|| {
 6100                        agent_location.buffer.upgrade().and_then(|buffer| {
 6101                            cx.update_default_global(|registry: &mut ProjectItemRegistry, cx| {
 6102                                registry.build_item(buffer, self.project.clone(), None, window, cx)
 6103                            })?
 6104                            .to_followable_item_handle(cx)
 6105                        })
 6106                    });
 6107
 6108                    view.map(|view| {
 6109                        entry.insert(FollowerView {
 6110                            view,
 6111                            location: None,
 6112                        })
 6113                    })
 6114                }
 6115            };
 6116
 6117            if let Some(item) = item {
 6118                item.view
 6119                    .set_leader_id(Some(CollaboratorId::Agent), window, cx);
 6120                item.view
 6121                    .update_agent_location(agent_location.position, window, cx);
 6122            }
 6123        } else {
 6124            follower_state.active_view_id = None;
 6125        }
 6126
 6127        self.leader_updated(CollaboratorId::Agent, window, cx);
 6128    }
 6129
 6130    pub fn update_active_view_for_followers(&mut self, window: &mut Window, cx: &mut App) {
 6131        let mut is_project_item = true;
 6132        let mut update = proto::UpdateActiveView::default();
 6133        if window.is_window_active() {
 6134            let (active_item, panel_id) = self.active_item_for_followers(window, cx);
 6135
 6136            if let Some(item) = active_item
 6137                && item.item_focus_handle(cx).contains_focused(window, cx)
 6138            {
 6139                let leader_id = self
 6140                    .pane_for(&*item)
 6141                    .and_then(|pane| self.leader_for_pane(&pane));
 6142                let leader_peer_id = match leader_id {
 6143                    Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 6144                    Some(CollaboratorId::Agent) | None => None,
 6145                };
 6146
 6147                if let Some(item) = item.to_followable_item_handle(cx) {
 6148                    let id = item
 6149                        .remote_id(&self.app_state.client, window, cx)
 6150                        .map(|id| id.to_proto());
 6151
 6152                    if let Some(id) = id
 6153                        && let Some(variant) = item.to_state_proto(window, cx)
 6154                    {
 6155                        let view = Some(proto::View {
 6156                            id,
 6157                            leader_id: leader_peer_id,
 6158                            variant: Some(variant),
 6159                            panel_id: panel_id.map(|id| id as i32),
 6160                        });
 6161
 6162                        is_project_item = item.is_project_item(window, cx);
 6163                        update = proto::UpdateActiveView { view };
 6164                    };
 6165                }
 6166            }
 6167        }
 6168
 6169        let active_view_id = update.view.as_ref().and_then(|view| view.id.as_ref());
 6170        if active_view_id != self.last_active_view_id.as_ref() {
 6171            self.last_active_view_id = active_view_id.cloned();
 6172            self.update_followers(
 6173                is_project_item,
 6174                proto::update_followers::Variant::UpdateActiveView(update),
 6175                window,
 6176                cx,
 6177            );
 6178        }
 6179    }
 6180
 6181    fn active_item_for_followers(
 6182        &self,
 6183        window: &mut Window,
 6184        cx: &mut App,
 6185    ) -> (Option<Box<dyn ItemHandle>>, Option<proto::PanelId>) {
 6186        let mut active_item = None;
 6187        let mut panel_id = None;
 6188        for dock in self.all_docks() {
 6189            if dock.focus_handle(cx).contains_focused(window, cx)
 6190                && let Some(panel) = dock.read(cx).active_panel()
 6191                && let Some(pane) = panel.pane(cx)
 6192                && let Some(item) = pane.read(cx).active_item()
 6193            {
 6194                active_item = Some(item);
 6195                panel_id = panel.remote_id();
 6196                break;
 6197            }
 6198        }
 6199
 6200        if active_item.is_none() {
 6201            active_item = self.active_pane().read(cx).active_item();
 6202        }
 6203        (active_item, panel_id)
 6204    }
 6205
 6206    fn update_followers(
 6207        &self,
 6208        project_only: bool,
 6209        update: proto::update_followers::Variant,
 6210        _: &mut Window,
 6211        cx: &mut App,
 6212    ) -> Option<()> {
 6213        // If this update only applies to for followers in the current project,
 6214        // then skip it unless this project is shared. If it applies to all
 6215        // followers, regardless of project, then set `project_id` to none,
 6216        // indicating that it goes to all followers.
 6217        let project_id = if project_only {
 6218            Some(self.project.read(cx).remote_id()?)
 6219        } else {
 6220            None
 6221        };
 6222        self.app_state().workspace_store.update(cx, |store, cx| {
 6223            store.update_followers(project_id, update, cx)
 6224        })
 6225    }
 6226
 6227    pub fn leader_for_pane(&self, pane: &Entity<Pane>) -> Option<CollaboratorId> {
 6228        self.follower_states.iter().find_map(|(leader_id, state)| {
 6229            if state.center_pane == *pane || state.dock_pane.as_ref() == Some(pane) {
 6230                Some(*leader_id)
 6231            } else {
 6232                None
 6233            }
 6234        })
 6235    }
 6236
 6237    fn leader_updated(
 6238        &mut self,
 6239        leader_id: impl Into<CollaboratorId>,
 6240        window: &mut Window,
 6241        cx: &mut Context<Self>,
 6242    ) -> Option<Box<dyn ItemHandle>> {
 6243        cx.notify();
 6244
 6245        let leader_id = leader_id.into();
 6246        let (panel_id, item) = match leader_id {
 6247            CollaboratorId::PeerId(peer_id) => self.active_item_for_peer(peer_id, window, cx)?,
 6248            CollaboratorId::Agent => (None, self.active_item_for_agent()?),
 6249        };
 6250
 6251        let state = self.follower_states.get(&leader_id)?;
 6252        let mut transfer_focus = state.center_pane.read(cx).has_focus(window, cx);
 6253        let pane;
 6254        if let Some(panel_id) = panel_id {
 6255            pane = self
 6256                .activate_panel_for_proto_id(panel_id, window, cx)?
 6257                .pane(cx)?;
 6258            let state = self.follower_states.get_mut(&leader_id)?;
 6259            state.dock_pane = Some(pane.clone());
 6260        } else {
 6261            pane = state.center_pane.clone();
 6262            let state = self.follower_states.get_mut(&leader_id)?;
 6263            if let Some(dock_pane) = state.dock_pane.take() {
 6264                transfer_focus |= dock_pane.focus_handle(cx).contains_focused(window, cx);
 6265            }
 6266        }
 6267
 6268        pane.update(cx, |pane, cx| {
 6269            let focus_active_item = pane.has_focus(window, cx) || transfer_focus;
 6270            if let Some(index) = pane.index_for_item(item.as_ref()) {
 6271                pane.activate_item(index, false, false, window, cx);
 6272            } else {
 6273                pane.add_item(item.boxed_clone(), false, false, None, window, cx)
 6274            }
 6275
 6276            if focus_active_item {
 6277                pane.focus_active_item(window, cx)
 6278            }
 6279        });
 6280
 6281        Some(item)
 6282    }
 6283
 6284    fn active_item_for_agent(&self) -> Option<Box<dyn ItemHandle>> {
 6285        let state = self.follower_states.get(&CollaboratorId::Agent)?;
 6286        let active_view_id = state.active_view_id?;
 6287        Some(
 6288            state
 6289                .items_by_leader_view_id
 6290                .get(&active_view_id)?
 6291                .view
 6292                .boxed_clone(),
 6293        )
 6294    }
 6295
 6296    fn active_item_for_peer(
 6297        &self,
 6298        peer_id: PeerId,
 6299        window: &mut Window,
 6300        cx: &mut Context<Self>,
 6301    ) -> Option<(Option<PanelId>, Box<dyn ItemHandle>)> {
 6302        let call = self.active_call()?;
 6303        let participant = call.remote_participant_for_peer_id(peer_id, cx)?;
 6304        let leader_in_this_app;
 6305        let leader_in_this_project;
 6306        match participant.location {
 6307            ParticipantLocation::SharedProject { project_id } => {
 6308                leader_in_this_app = true;
 6309                leader_in_this_project = Some(project_id) == self.project.read(cx).remote_id();
 6310            }
 6311            ParticipantLocation::UnsharedProject => {
 6312                leader_in_this_app = true;
 6313                leader_in_this_project = false;
 6314            }
 6315            ParticipantLocation::External => {
 6316                leader_in_this_app = false;
 6317                leader_in_this_project = false;
 6318            }
 6319        };
 6320        let state = self.follower_states.get(&peer_id.into())?;
 6321        let mut item_to_activate = None;
 6322        if let (Some(active_view_id), true) = (state.active_view_id, leader_in_this_app) {
 6323            if let Some(item) = state.items_by_leader_view_id.get(&active_view_id)
 6324                && (leader_in_this_project || !item.view.is_project_item(window, cx))
 6325            {
 6326                item_to_activate = Some((item.location, item.view.boxed_clone()));
 6327            }
 6328        } else if let Some(shared_screen) =
 6329            self.shared_screen_for_peer(peer_id, &state.center_pane, window, cx)
 6330        {
 6331            item_to_activate = Some((None, Box::new(shared_screen)));
 6332        }
 6333        item_to_activate
 6334    }
 6335
 6336    fn shared_screen_for_peer(
 6337        &self,
 6338        peer_id: PeerId,
 6339        pane: &Entity<Pane>,
 6340        window: &mut Window,
 6341        cx: &mut App,
 6342    ) -> Option<Entity<SharedScreen>> {
 6343        self.active_call()?
 6344            .create_shared_screen(peer_id, pane, window, cx)
 6345    }
 6346
 6347    pub fn on_window_activation_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 6348        if window.is_window_active() {
 6349            self.update_active_view_for_followers(window, cx);
 6350
 6351            if let Some(database_id) = self.database_id {
 6352                let db = WorkspaceDb::global(cx);
 6353                cx.background_spawn(async move { db.update_timestamp(database_id).await })
 6354                    .detach();
 6355            }
 6356        } else {
 6357            for pane in &self.panes {
 6358                pane.update(cx, |pane, cx| {
 6359                    if let Some(item) = pane.active_item() {
 6360                        item.workspace_deactivated(window, cx);
 6361                    }
 6362                    for item in pane.items() {
 6363                        if matches!(
 6364                            item.workspace_settings(cx).autosave,
 6365                            AutosaveSetting::OnWindowChange | AutosaveSetting::OnFocusChange
 6366                        ) {
 6367                            Pane::autosave_item(item.as_ref(), self.project.clone(), window, cx)
 6368                                .detach_and_log_err(cx);
 6369                        }
 6370                    }
 6371                });
 6372            }
 6373        }
 6374    }
 6375
 6376    pub fn active_call(&self) -> Option<&dyn AnyActiveCall> {
 6377        self.active_call.as_ref().map(|(call, _)| &*call.0)
 6378    }
 6379
 6380    pub fn active_global_call(&self) -> Option<GlobalAnyActiveCall> {
 6381        self.active_call.as_ref().map(|(call, _)| call.clone())
 6382    }
 6383
 6384    fn on_active_call_event(
 6385        &mut self,
 6386        event: &ActiveCallEvent,
 6387        window: &mut Window,
 6388        cx: &mut Context<Self>,
 6389    ) {
 6390        match event {
 6391            ActiveCallEvent::ParticipantLocationChanged { participant_id }
 6392            | ActiveCallEvent::RemoteVideoTracksChanged { participant_id } => {
 6393                self.leader_updated(participant_id, window, cx);
 6394            }
 6395        }
 6396    }
 6397
 6398    pub fn database_id(&self) -> Option<WorkspaceId> {
 6399        self.database_id
 6400    }
 6401
 6402    #[cfg(any(test, feature = "test-support"))]
 6403    pub(crate) fn set_database_id(&mut self, id: WorkspaceId) {
 6404        self.database_id = Some(id);
 6405    }
 6406
 6407    pub fn session_id(&self) -> Option<String> {
 6408        self.session_id.clone()
 6409    }
 6410
 6411    fn save_window_bounds(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 6412        let Some(display) = window.display(cx) else {
 6413            return Task::ready(());
 6414        };
 6415        let Ok(display_uuid) = display.uuid() else {
 6416            return Task::ready(());
 6417        };
 6418
 6419        let window_bounds = window.inner_window_bounds();
 6420        let database_id = self.database_id;
 6421        let has_paths = !self.root_paths(cx).is_empty();
 6422        let db = WorkspaceDb::global(cx);
 6423        let kvp = db::kvp::KeyValueStore::global(cx);
 6424
 6425        cx.background_executor().spawn(async move {
 6426            if !has_paths {
 6427                persistence::write_default_window_bounds(&kvp, window_bounds, display_uuid)
 6428                    .await
 6429                    .log_err();
 6430            }
 6431            if let Some(database_id) = database_id {
 6432                db.set_window_open_status(
 6433                    database_id,
 6434                    SerializedWindowBounds(window_bounds),
 6435                    display_uuid,
 6436                )
 6437                .await
 6438                .log_err();
 6439            } else {
 6440                persistence::write_default_window_bounds(&kvp, window_bounds, display_uuid)
 6441                    .await
 6442                    .log_err();
 6443            }
 6444        })
 6445    }
 6446
 6447    /// Bypass the 200ms serialization throttle and write workspace state to
 6448    /// the DB immediately. Returns a task the caller can await to ensure the
 6449    /// write completes. Used by the quit handler so the most recent state
 6450    /// isn't lost to a pending throttle timer when the process exits.
 6451    pub fn flush_serialization(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 6452        self._schedule_serialize_workspace.take();
 6453        self._serialize_workspace_task.take();
 6454        self.bounds_save_task_queued.take();
 6455
 6456        let bounds_task = self.save_window_bounds(window, cx);
 6457        let serialize_task = self.serialize_workspace_internal(window, cx);
 6458        cx.spawn(async move |_| {
 6459            bounds_task.await;
 6460            serialize_task.await;
 6461        })
 6462    }
 6463
 6464    pub fn root_paths(&self, cx: &App) -> Vec<Arc<Path>> {
 6465        let project = self.project().read(cx);
 6466        project
 6467            .visible_worktrees(cx)
 6468            .map(|worktree| worktree.read(cx).abs_path())
 6469            .collect::<Vec<_>>()
 6470    }
 6471
 6472    fn remove_panes(&mut self, member: Member, window: &mut Window, cx: &mut Context<Workspace>) {
 6473        match member {
 6474            Member::Axis(PaneAxis { members, .. }) => {
 6475                for child in members.iter() {
 6476                    self.remove_panes(child.clone(), window, cx)
 6477                }
 6478            }
 6479            Member::Pane(pane) => {
 6480                self.force_remove_pane(&pane, &None, window, cx);
 6481            }
 6482        }
 6483    }
 6484
 6485    fn remove_from_session(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 6486        self.session_id.take();
 6487        self.serialize_workspace_internal(window, cx)
 6488    }
 6489
 6490    fn force_remove_pane(
 6491        &mut self,
 6492        pane: &Entity<Pane>,
 6493        focus_on: &Option<Entity<Pane>>,
 6494        window: &mut Window,
 6495        cx: &mut Context<Workspace>,
 6496    ) {
 6497        self.panes.retain(|p| p != pane);
 6498        if let Some(focus_on) = focus_on {
 6499            focus_on.update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 6500        } else if self.active_pane() == pane {
 6501            self.panes
 6502                .last()
 6503                .unwrap()
 6504                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 6505        }
 6506        if self.last_active_center_pane == Some(pane.downgrade()) {
 6507            self.last_active_center_pane = None;
 6508        }
 6509        cx.notify();
 6510    }
 6511
 6512    fn serialize_workspace(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 6513        if self._schedule_serialize_workspace.is_none() {
 6514            self._schedule_serialize_workspace =
 6515                Some(cx.spawn_in(window, async move |this, cx| {
 6516                    cx.background_executor()
 6517                        .timer(SERIALIZATION_THROTTLE_TIME)
 6518                        .await;
 6519                    this.update_in(cx, |this, window, cx| {
 6520                        this._serialize_workspace_task =
 6521                            Some(this.serialize_workspace_internal(window, cx));
 6522                        this._schedule_serialize_workspace.take();
 6523                    })
 6524                    .log_err();
 6525                }));
 6526        }
 6527    }
 6528
 6529    fn serialize_workspace_internal(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 6530        let Some(database_id) = self.database_id() else {
 6531            return Task::ready(());
 6532        };
 6533
 6534        fn serialize_pane_handle(
 6535            pane_handle: &Entity<Pane>,
 6536            window: &mut Window,
 6537            cx: &mut App,
 6538        ) -> SerializedPane {
 6539            let (items, active, pinned_count) = {
 6540                let pane = pane_handle.read(cx);
 6541                let active_item_id = pane.active_item().map(|item| item.item_id());
 6542                (
 6543                    pane.items()
 6544                        .filter_map(|handle| {
 6545                            let handle = handle.to_serializable_item_handle(cx)?;
 6546
 6547                            Some(SerializedItem {
 6548                                kind: Arc::from(handle.serialized_item_kind()),
 6549                                item_id: handle.item_id().as_u64(),
 6550                                active: Some(handle.item_id()) == active_item_id,
 6551                                preview: pane.is_active_preview_item(handle.item_id()),
 6552                            })
 6553                        })
 6554                        .collect::<Vec<_>>(),
 6555                    pane.has_focus(window, cx),
 6556                    pane.pinned_count(),
 6557                )
 6558            };
 6559
 6560            SerializedPane::new(items, active, pinned_count)
 6561        }
 6562
 6563        fn build_serialized_pane_group(
 6564            pane_group: &Member,
 6565            window: &mut Window,
 6566            cx: &mut App,
 6567        ) -> SerializedPaneGroup {
 6568            match pane_group {
 6569                Member::Axis(PaneAxis {
 6570                    axis,
 6571                    members,
 6572                    flexes,
 6573                    bounding_boxes: _,
 6574                }) => SerializedPaneGroup::Group {
 6575                    axis: SerializedAxis(*axis),
 6576                    children: members
 6577                        .iter()
 6578                        .map(|member| build_serialized_pane_group(member, window, cx))
 6579                        .collect::<Vec<_>>(),
 6580                    flexes: Some(flexes.lock().clone()),
 6581                },
 6582                Member::Pane(pane_handle) => {
 6583                    SerializedPaneGroup::Pane(serialize_pane_handle(pane_handle, window, cx))
 6584                }
 6585            }
 6586        }
 6587
 6588        fn build_serialized_docks(
 6589            this: &Workspace,
 6590            window: &mut Window,
 6591            cx: &mut App,
 6592        ) -> DockStructure {
 6593            this.capture_dock_state(window, cx)
 6594        }
 6595
 6596        match self.workspace_location(cx) {
 6597            WorkspaceLocation::Location(location, paths) => {
 6598                let breakpoints = self.project.update(cx, |project, cx| {
 6599                    project
 6600                        .breakpoint_store()
 6601                        .read(cx)
 6602                        .all_source_breakpoints(cx)
 6603                });
 6604                let user_toolchains = self
 6605                    .project
 6606                    .read(cx)
 6607                    .user_toolchains(cx)
 6608                    .unwrap_or_default();
 6609
 6610                let center_group = build_serialized_pane_group(&self.center.root, window, cx);
 6611                let docks = build_serialized_docks(self, window, cx);
 6612                let window_bounds = Some(SerializedWindowBounds(window.window_bounds()));
 6613
 6614                let serialized_workspace = SerializedWorkspace {
 6615                    id: database_id,
 6616                    location,
 6617                    paths,
 6618                    center_group,
 6619                    window_bounds,
 6620                    display: Default::default(),
 6621                    docks,
 6622                    centered_layout: self.centered_layout,
 6623                    session_id: self.session_id.clone(),
 6624                    breakpoints,
 6625                    window_id: Some(window.window_handle().window_id().as_u64()),
 6626                    user_toolchains,
 6627                };
 6628
 6629                let db = WorkspaceDb::global(cx);
 6630                window.spawn(cx, async move |_| {
 6631                    db.save_workspace(serialized_workspace).await;
 6632                })
 6633            }
 6634            WorkspaceLocation::DetachFromSession => {
 6635                let window_bounds = SerializedWindowBounds(window.window_bounds());
 6636                let display = window.display(cx).and_then(|d| d.uuid().ok());
 6637                // Save dock state for empty local workspaces
 6638                let docks = build_serialized_docks(self, window, cx);
 6639                let db = WorkspaceDb::global(cx);
 6640                let kvp = db::kvp::KeyValueStore::global(cx);
 6641                window.spawn(cx, async move |_| {
 6642                    db.set_window_open_status(
 6643                        database_id,
 6644                        window_bounds,
 6645                        display.unwrap_or_default(),
 6646                    )
 6647                    .await
 6648                    .log_err();
 6649                    db.set_session_id(database_id, None).await.log_err();
 6650                    persistence::write_default_dock_state(&kvp, docks)
 6651                        .await
 6652                        .log_err();
 6653                })
 6654            }
 6655            WorkspaceLocation::None => {
 6656                // Save dock state for empty non-local workspaces
 6657                let docks = build_serialized_docks(self, window, cx);
 6658                let kvp = db::kvp::KeyValueStore::global(cx);
 6659                window.spawn(cx, async move |_| {
 6660                    persistence::write_default_dock_state(&kvp, docks)
 6661                        .await
 6662                        .log_err();
 6663                })
 6664            }
 6665        }
 6666    }
 6667
 6668    fn has_any_items_open(&self, cx: &App) -> bool {
 6669        self.panes.iter().any(|pane| pane.read(cx).items_len() > 0)
 6670    }
 6671
 6672    fn workspace_location(&self, cx: &App) -> WorkspaceLocation {
 6673        let paths = PathList::new(&self.root_paths(cx));
 6674        if let Some(connection) = self.project.read(cx).remote_connection_options(cx) {
 6675            WorkspaceLocation::Location(SerializedWorkspaceLocation::Remote(connection), paths)
 6676        } else if self.project.read(cx).is_local() {
 6677            if !paths.is_empty() || self.has_any_items_open(cx) {
 6678                WorkspaceLocation::Location(SerializedWorkspaceLocation::Local, paths)
 6679            } else {
 6680                WorkspaceLocation::DetachFromSession
 6681            }
 6682        } else {
 6683            WorkspaceLocation::None
 6684        }
 6685    }
 6686
 6687    fn update_history(&self, cx: &mut App) {
 6688        let Some(id) = self.database_id() else {
 6689            return;
 6690        };
 6691        if !self.project.read(cx).is_local() {
 6692            return;
 6693        }
 6694        if let Some(manager) = HistoryManager::global(cx) {
 6695            let paths = PathList::new(&self.root_paths(cx));
 6696            manager.update(cx, |this, cx| {
 6697                this.update_history(id, HistoryManagerEntry::new(id, &paths), cx);
 6698            });
 6699        }
 6700    }
 6701
 6702    async fn serialize_items(
 6703        this: &WeakEntity<Self>,
 6704        items_rx: UnboundedReceiver<Box<dyn SerializableItemHandle>>,
 6705        cx: &mut AsyncWindowContext,
 6706    ) -> Result<()> {
 6707        const CHUNK_SIZE: usize = 200;
 6708
 6709        let mut serializable_items = items_rx.ready_chunks(CHUNK_SIZE);
 6710
 6711        while let Some(items_received) = serializable_items.next().await {
 6712            let unique_items =
 6713                items_received
 6714                    .into_iter()
 6715                    .fold(HashMap::default(), |mut acc, item| {
 6716                        acc.entry(item.item_id()).or_insert(item);
 6717                        acc
 6718                    });
 6719
 6720            // We use into_iter() here so that the references to the items are moved into
 6721            // the tasks and not kept alive while we're sleeping.
 6722            for (_, item) in unique_items.into_iter() {
 6723                if let Ok(Some(task)) = this.update_in(cx, |workspace, window, cx| {
 6724                    item.serialize(workspace, false, window, cx)
 6725                }) {
 6726                    cx.background_spawn(async move { task.await.log_err() })
 6727                        .detach();
 6728                }
 6729            }
 6730
 6731            cx.background_executor()
 6732                .timer(SERIALIZATION_THROTTLE_TIME)
 6733                .await;
 6734        }
 6735
 6736        Ok(())
 6737    }
 6738
 6739    pub(crate) fn enqueue_item_serialization(
 6740        &mut self,
 6741        item: Box<dyn SerializableItemHandle>,
 6742    ) -> Result<()> {
 6743        self.serializable_items_tx
 6744            .unbounded_send(item)
 6745            .map_err(|err| anyhow!("failed to send serializable item over channel: {err}"))
 6746    }
 6747
 6748    pub(crate) fn load_workspace(
 6749        serialized_workspace: SerializedWorkspace,
 6750        paths_to_open: Vec<Option<ProjectPath>>,
 6751        window: &mut Window,
 6752        cx: &mut Context<Workspace>,
 6753    ) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 6754        cx.spawn_in(window, async move |workspace, cx| {
 6755            let project = workspace.read_with(cx, |workspace, _| workspace.project().clone())?;
 6756
 6757            let mut center_group = None;
 6758            let mut center_items = None;
 6759
 6760            // Traverse the splits tree and add to things
 6761            if let Some((group, active_pane, items)) = serialized_workspace
 6762                .center_group
 6763                .deserialize(&project, serialized_workspace.id, workspace.clone(), cx)
 6764                .await
 6765            {
 6766                center_items = Some(items);
 6767                center_group = Some((group, active_pane))
 6768            }
 6769
 6770            let mut items_by_project_path = HashMap::default();
 6771            let mut item_ids_by_kind = HashMap::default();
 6772            let mut all_deserialized_items = Vec::default();
 6773            cx.update(|_, cx| {
 6774                for item in center_items.unwrap_or_default().into_iter().flatten() {
 6775                    if let Some(serializable_item_handle) = item.to_serializable_item_handle(cx) {
 6776                        item_ids_by_kind
 6777                            .entry(serializable_item_handle.serialized_item_kind())
 6778                            .or_insert(Vec::new())
 6779                            .push(item.item_id().as_u64() as ItemId);
 6780                    }
 6781
 6782                    if let Some(project_path) = item.project_path(cx) {
 6783                        items_by_project_path.insert(project_path, item.clone());
 6784                    }
 6785                    all_deserialized_items.push(item);
 6786                }
 6787            })?;
 6788
 6789            let opened_items = paths_to_open
 6790                .into_iter()
 6791                .map(|path_to_open| {
 6792                    path_to_open
 6793                        .and_then(|path_to_open| items_by_project_path.remove(&path_to_open))
 6794                })
 6795                .collect::<Vec<_>>();
 6796
 6797            // Remove old panes from workspace panes list
 6798            workspace.update_in(cx, |workspace, window, cx| {
 6799                if let Some((center_group, active_pane)) = center_group {
 6800                    workspace.remove_panes(workspace.center.root.clone(), window, cx);
 6801
 6802                    // Swap workspace center group
 6803                    workspace.center = PaneGroup::with_root(center_group);
 6804                    workspace.center.set_is_center(true);
 6805                    workspace.center.mark_positions(cx);
 6806
 6807                    if let Some(active_pane) = active_pane {
 6808                        workspace.set_active_pane(&active_pane, window, cx);
 6809                        cx.focus_self(window);
 6810                    } else {
 6811                        workspace.set_active_pane(&workspace.center.first_pane(), window, cx);
 6812                    }
 6813                }
 6814
 6815                let docks = serialized_workspace.docks;
 6816
 6817                for (dock, serialized_dock) in [
 6818                    (&mut workspace.right_dock, docks.right),
 6819                    (&mut workspace.left_dock, docks.left),
 6820                    (&mut workspace.bottom_dock, docks.bottom),
 6821                ]
 6822                .iter_mut()
 6823                {
 6824                    dock.update(cx, |dock, cx| {
 6825                        dock.serialized_dock = Some(serialized_dock.clone());
 6826                        dock.restore_state(window, cx);
 6827                    });
 6828                }
 6829
 6830                cx.notify();
 6831            })?;
 6832
 6833            let _ = project
 6834                .update(cx, |project, cx| {
 6835                    project
 6836                        .breakpoint_store()
 6837                        .update(cx, |breakpoint_store, cx| {
 6838                            breakpoint_store
 6839                                .with_serialized_breakpoints(serialized_workspace.breakpoints, cx)
 6840                        })
 6841                })
 6842                .await;
 6843
 6844            // Clean up all the items that have _not_ been loaded. Our ItemIds aren't stable. That means
 6845            // after loading the items, we might have different items and in order to avoid
 6846            // the database filling up, we delete items that haven't been loaded now.
 6847            //
 6848            // The items that have been loaded, have been saved after they've been added to the workspace.
 6849            let clean_up_tasks = workspace.update_in(cx, |_, window, cx| {
 6850                item_ids_by_kind
 6851                    .into_iter()
 6852                    .map(|(item_kind, loaded_items)| {
 6853                        SerializableItemRegistry::cleanup(
 6854                            item_kind,
 6855                            serialized_workspace.id,
 6856                            loaded_items,
 6857                            window,
 6858                            cx,
 6859                        )
 6860                        .log_err()
 6861                    })
 6862                    .collect::<Vec<_>>()
 6863            })?;
 6864
 6865            futures::future::join_all(clean_up_tasks).await;
 6866
 6867            workspace
 6868                .update_in(cx, |workspace, window, cx| {
 6869                    // Serialize ourself to make sure our timestamps and any pane / item changes are replicated
 6870                    workspace.serialize_workspace_internal(window, cx).detach();
 6871
 6872                    // Ensure that we mark the window as edited if we did load dirty items
 6873                    workspace.update_window_edited(window, cx);
 6874                })
 6875                .ok();
 6876
 6877            Ok(opened_items)
 6878        })
 6879    }
 6880
 6881    pub fn key_context(&self, cx: &App) -> KeyContext {
 6882        let mut context = KeyContext::new_with_defaults();
 6883        context.add("Workspace");
 6884        context.set("keyboard_layout", cx.keyboard_layout().name().to_string());
 6885        if let Some(status) = self
 6886            .debugger_provider
 6887            .as_ref()
 6888            .and_then(|provider| provider.active_thread_state(cx))
 6889        {
 6890            match status {
 6891                ThreadStatus::Running | ThreadStatus::Stepping => {
 6892                    context.add("debugger_running");
 6893                }
 6894                ThreadStatus::Stopped => context.add("debugger_stopped"),
 6895                ThreadStatus::Exited | ThreadStatus::Ended => {}
 6896            }
 6897        }
 6898
 6899        if self.left_dock.read(cx).is_open() {
 6900            if let Some(active_panel) = self.left_dock.read(cx).active_panel() {
 6901                context.set("left_dock", active_panel.panel_key());
 6902            }
 6903        }
 6904
 6905        if self.right_dock.read(cx).is_open() {
 6906            if let Some(active_panel) = self.right_dock.read(cx).active_panel() {
 6907                context.set("right_dock", active_panel.panel_key());
 6908            }
 6909        }
 6910
 6911        if self.bottom_dock.read(cx).is_open() {
 6912            if let Some(active_panel) = self.bottom_dock.read(cx).active_panel() {
 6913                context.set("bottom_dock", active_panel.panel_key());
 6914            }
 6915        }
 6916
 6917        context
 6918    }
 6919
 6920    /// Multiworkspace uses this to add workspace action handling to itself
 6921    pub fn actions(&self, div: Div, window: &mut Window, cx: &mut Context<Self>) -> Div {
 6922        self.add_workspace_actions_listeners(div, window, cx)
 6923            .on_action(cx.listener(
 6924                |_workspace, action_sequence: &settings::ActionSequence, window, cx| {
 6925                    for action in &action_sequence.0 {
 6926                        window.dispatch_action(action.boxed_clone(), cx);
 6927                    }
 6928                },
 6929            ))
 6930            .on_action(cx.listener(Self::close_inactive_items_and_panes))
 6931            .on_action(cx.listener(Self::close_all_items_and_panes))
 6932            .on_action(cx.listener(Self::close_item_in_all_panes))
 6933            .on_action(cx.listener(Self::save_all))
 6934            .on_action(cx.listener(Self::send_keystrokes))
 6935            .on_action(cx.listener(Self::add_folder_to_project))
 6936            .on_action(cx.listener(Self::follow_next_collaborator))
 6937            .on_action(cx.listener(Self::activate_pane_at_index))
 6938            .on_action(cx.listener(Self::move_item_to_pane_at_index))
 6939            .on_action(cx.listener(Self::move_focused_panel_to_next_position))
 6940            .on_action(cx.listener(Self::toggle_edit_predictions_all_files))
 6941            .on_action(cx.listener(Self::toggle_theme_mode))
 6942            .on_action(cx.listener(|workspace, _: &Unfollow, window, cx| {
 6943                let pane = workspace.active_pane().clone();
 6944                workspace.unfollow_in_pane(&pane, window, cx);
 6945            }))
 6946            .on_action(cx.listener(|workspace, action: &Save, window, cx| {
 6947                workspace
 6948                    .save_active_item(action.save_intent.unwrap_or(SaveIntent::Save), window, cx)
 6949                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6950            }))
 6951            .on_action(cx.listener(|workspace, _: &SaveWithoutFormat, window, cx| {
 6952                workspace
 6953                    .save_active_item(SaveIntent::SaveWithoutFormat, window, cx)
 6954                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6955            }))
 6956            .on_action(cx.listener(|workspace, _: &SaveAs, window, cx| {
 6957                workspace
 6958                    .save_active_item(SaveIntent::SaveAs, window, cx)
 6959                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6960            }))
 6961            .on_action(
 6962                cx.listener(|workspace, _: &ActivatePreviousPane, window, cx| {
 6963                    workspace.activate_previous_pane(window, cx)
 6964                }),
 6965            )
 6966            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 6967                workspace.activate_next_pane(window, cx)
 6968            }))
 6969            .on_action(cx.listener(|workspace, _: &ActivateLastPane, window, cx| {
 6970                workspace.activate_last_pane(window, cx)
 6971            }))
 6972            .on_action(
 6973                cx.listener(|workspace, _: &ActivateNextWindow, _window, cx| {
 6974                    workspace.activate_next_window(cx)
 6975                }),
 6976            )
 6977            .on_action(
 6978                cx.listener(|workspace, _: &ActivatePreviousWindow, _window, cx| {
 6979                    workspace.activate_previous_window(cx)
 6980                }),
 6981            )
 6982            .on_action(cx.listener(|workspace, _: &ActivatePaneLeft, window, cx| {
 6983                workspace.activate_pane_in_direction(SplitDirection::Left, window, cx)
 6984            }))
 6985            .on_action(cx.listener(|workspace, _: &ActivatePaneRight, window, cx| {
 6986                workspace.activate_pane_in_direction(SplitDirection::Right, window, cx)
 6987            }))
 6988            .on_action(cx.listener(|workspace, _: &ActivatePaneUp, window, cx| {
 6989                workspace.activate_pane_in_direction(SplitDirection::Up, window, cx)
 6990            }))
 6991            .on_action(cx.listener(|workspace, _: &ActivatePaneDown, window, cx| {
 6992                workspace.activate_pane_in_direction(SplitDirection::Down, window, cx)
 6993            }))
 6994            .on_action(cx.listener(
 6995                |workspace, action: &MoveItemToPaneInDirection, window, cx| {
 6996                    workspace.move_item_to_pane_in_direction(action, window, cx)
 6997                },
 6998            ))
 6999            .on_action(cx.listener(|workspace, _: &SwapPaneLeft, _, cx| {
 7000                workspace.swap_pane_in_direction(SplitDirection::Left, cx)
 7001            }))
 7002            .on_action(cx.listener(|workspace, _: &SwapPaneRight, _, cx| {
 7003                workspace.swap_pane_in_direction(SplitDirection::Right, cx)
 7004            }))
 7005            .on_action(cx.listener(|workspace, _: &SwapPaneUp, _, cx| {
 7006                workspace.swap_pane_in_direction(SplitDirection::Up, cx)
 7007            }))
 7008            .on_action(cx.listener(|workspace, _: &SwapPaneDown, _, cx| {
 7009                workspace.swap_pane_in_direction(SplitDirection::Down, cx)
 7010            }))
 7011            .on_action(cx.listener(|workspace, _: &SwapPaneAdjacent, window, cx| {
 7012                const DIRECTION_PRIORITY: [SplitDirection; 4] = [
 7013                    SplitDirection::Down,
 7014                    SplitDirection::Up,
 7015                    SplitDirection::Right,
 7016                    SplitDirection::Left,
 7017                ];
 7018                for dir in DIRECTION_PRIORITY {
 7019                    if workspace.find_pane_in_direction(dir, cx).is_some() {
 7020                        workspace.swap_pane_in_direction(dir, cx);
 7021                        workspace.activate_pane_in_direction(dir.opposite(), window, cx);
 7022                        break;
 7023                    }
 7024                }
 7025            }))
 7026            .on_action(cx.listener(|workspace, _: &MovePaneLeft, _, cx| {
 7027                workspace.move_pane_to_border(SplitDirection::Left, cx)
 7028            }))
 7029            .on_action(cx.listener(|workspace, _: &MovePaneRight, _, cx| {
 7030                workspace.move_pane_to_border(SplitDirection::Right, cx)
 7031            }))
 7032            .on_action(cx.listener(|workspace, _: &MovePaneUp, _, cx| {
 7033                workspace.move_pane_to_border(SplitDirection::Up, cx)
 7034            }))
 7035            .on_action(cx.listener(|workspace, _: &MovePaneDown, _, cx| {
 7036                workspace.move_pane_to_border(SplitDirection::Down, cx)
 7037            }))
 7038            .on_action(cx.listener(|this, _: &ToggleLeftDock, window, cx| {
 7039                this.toggle_dock(DockPosition::Left, window, cx);
 7040            }))
 7041            .on_action(cx.listener(
 7042                |workspace: &mut Workspace, _: &ToggleRightDock, window, cx| {
 7043                    workspace.toggle_dock(DockPosition::Right, window, cx);
 7044                },
 7045            ))
 7046            .on_action(cx.listener(
 7047                |workspace: &mut Workspace, _: &ToggleBottomDock, window, cx| {
 7048                    workspace.toggle_dock(DockPosition::Bottom, window, cx);
 7049                },
 7050            ))
 7051            .on_action(cx.listener(
 7052                |workspace: &mut Workspace, _: &CloseActiveDock, window, cx| {
 7053                    if !workspace.close_active_dock(window, cx) {
 7054                        cx.propagate();
 7055                    }
 7056                },
 7057            ))
 7058            .on_action(
 7059                cx.listener(|workspace: &mut Workspace, _: &CloseAllDocks, window, cx| {
 7060                    workspace.close_all_docks(window, cx);
 7061                }),
 7062            )
 7063            .on_action(cx.listener(Self::toggle_all_docks))
 7064            .on_action(cx.listener(
 7065                |workspace: &mut Workspace, _: &ClearAllNotifications, _, cx| {
 7066                    workspace.clear_all_notifications(cx);
 7067                },
 7068            ))
 7069            .on_action(cx.listener(
 7070                |workspace: &mut Workspace, _: &ClearNavigationHistory, window, cx| {
 7071                    workspace.clear_navigation_history(window, cx);
 7072                },
 7073            ))
 7074            .on_action(cx.listener(
 7075                |workspace: &mut Workspace, _: &SuppressNotification, _, cx| {
 7076                    if let Some((notification_id, _)) = workspace.notifications.pop() {
 7077                        workspace.suppress_notification(&notification_id, cx);
 7078                    }
 7079                },
 7080            ))
 7081            .on_action(cx.listener(
 7082                |workspace: &mut Workspace, _: &ToggleWorktreeSecurity, window, cx| {
 7083                    workspace.show_worktree_trust_security_modal(true, window, cx);
 7084                },
 7085            ))
 7086            .on_action(
 7087                cx.listener(|_: &mut Workspace, _: &ClearTrustedWorktrees, _, cx| {
 7088                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 7089                        trusted_worktrees.update(cx, |trusted_worktrees, _| {
 7090                            trusted_worktrees.clear_trusted_paths()
 7091                        });
 7092                        let db = WorkspaceDb::global(cx);
 7093                        cx.spawn(async move |_, cx| {
 7094                            if db.clear_trusted_worktrees().await.log_err().is_some() {
 7095                                cx.update(|cx| reload(cx));
 7096                            }
 7097                        })
 7098                        .detach();
 7099                    }
 7100                }),
 7101            )
 7102            .on_action(cx.listener(
 7103                |workspace: &mut Workspace, _: &ReopenClosedItem, window, cx| {
 7104                    workspace.reopen_closed_item(window, cx).detach();
 7105                },
 7106            ))
 7107            .on_action(cx.listener(
 7108                |workspace: &mut Workspace, _: &ResetActiveDockSize, window, cx| {
 7109                    for dock in workspace.all_docks() {
 7110                        if dock.focus_handle(cx).contains_focused(window, cx) {
 7111                            let panel = dock.read(cx).active_panel().cloned();
 7112                            if let Some(panel) = panel {
 7113                                dock.update(cx, |dock, cx| {
 7114                                    dock.set_panel_size_state(
 7115                                        panel.as_ref(),
 7116                                        dock::PanelSizeState::default(),
 7117                                        cx,
 7118                                    );
 7119                                });
 7120                            }
 7121                            return;
 7122                        }
 7123                    }
 7124                },
 7125            ))
 7126            .on_action(cx.listener(
 7127                |workspace: &mut Workspace, _: &ResetOpenDocksSize, _window, cx| {
 7128                    for dock in workspace.all_docks() {
 7129                        let panel = dock.read(cx).visible_panel().cloned();
 7130                        if let Some(panel) = panel {
 7131                            dock.update(cx, |dock, cx| {
 7132                                dock.set_panel_size_state(
 7133                                    panel.as_ref(),
 7134                                    dock::PanelSizeState::default(),
 7135                                    cx,
 7136                                );
 7137                            });
 7138                        }
 7139                    }
 7140                },
 7141            ))
 7142            .on_action(cx.listener(
 7143                |workspace: &mut Workspace, act: &IncreaseActiveDockSize, window, cx| {
 7144                    adjust_active_dock_size_by_px(
 7145                        px_with_ui_font_fallback(act.px, cx),
 7146                        workspace,
 7147                        window,
 7148                        cx,
 7149                    );
 7150                },
 7151            ))
 7152            .on_action(cx.listener(
 7153                |workspace: &mut Workspace, act: &DecreaseActiveDockSize, window, cx| {
 7154                    adjust_active_dock_size_by_px(
 7155                        px_with_ui_font_fallback(act.px, cx) * -1.,
 7156                        workspace,
 7157                        window,
 7158                        cx,
 7159                    );
 7160                },
 7161            ))
 7162            .on_action(cx.listener(
 7163                |workspace: &mut Workspace, act: &IncreaseOpenDocksSize, window, cx| {
 7164                    adjust_open_docks_size_by_px(
 7165                        px_with_ui_font_fallback(act.px, cx),
 7166                        workspace,
 7167                        window,
 7168                        cx,
 7169                    );
 7170                },
 7171            ))
 7172            .on_action(cx.listener(
 7173                |workspace: &mut Workspace, act: &DecreaseOpenDocksSize, window, cx| {
 7174                    adjust_open_docks_size_by_px(
 7175                        px_with_ui_font_fallback(act.px, cx) * -1.,
 7176                        workspace,
 7177                        window,
 7178                        cx,
 7179                    );
 7180                },
 7181            ))
 7182            .on_action(cx.listener(Workspace::toggle_centered_layout))
 7183            .on_action(cx.listener(
 7184                |workspace: &mut Workspace, action: &pane::ActivateNextItem, window, cx| {
 7185                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 7186                        let dock = active_dock.read(cx);
 7187                        if let Some(active_panel) = dock.active_panel() {
 7188                            if active_panel.pane(cx).is_none() {
 7189                                let mut recent_pane: Option<Entity<Pane>> = None;
 7190                                let mut recent_timestamp = 0;
 7191                                for pane_handle in workspace.panes() {
 7192                                    let pane = pane_handle.read(cx);
 7193                                    for entry in pane.activation_history() {
 7194                                        if entry.timestamp > recent_timestamp {
 7195                                            recent_timestamp = entry.timestamp;
 7196                                            recent_pane = Some(pane_handle.clone());
 7197                                        }
 7198                                    }
 7199                                }
 7200
 7201                                if let Some(pane) = recent_pane {
 7202                                    let wrap_around = action.wrap_around;
 7203                                    pane.update(cx, |pane, cx| {
 7204                                        let current_index = pane.active_item_index();
 7205                                        let items_len = pane.items_len();
 7206                                        if items_len > 0 {
 7207                                            let next_index = if current_index + 1 < items_len {
 7208                                                current_index + 1
 7209                                            } else if wrap_around {
 7210                                                0
 7211                                            } else {
 7212                                                return;
 7213                                            };
 7214                                            pane.activate_item(
 7215                                                next_index, false, false, window, cx,
 7216                                            );
 7217                                        }
 7218                                    });
 7219                                    return;
 7220                                }
 7221                            }
 7222                        }
 7223                    }
 7224                    cx.propagate();
 7225                },
 7226            ))
 7227            .on_action(cx.listener(
 7228                |workspace: &mut Workspace, action: &pane::ActivatePreviousItem, window, cx| {
 7229                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 7230                        let dock = active_dock.read(cx);
 7231                        if let Some(active_panel) = dock.active_panel() {
 7232                            if active_panel.pane(cx).is_none() {
 7233                                let mut recent_pane: Option<Entity<Pane>> = None;
 7234                                let mut recent_timestamp = 0;
 7235                                for pane_handle in workspace.panes() {
 7236                                    let pane = pane_handle.read(cx);
 7237                                    for entry in pane.activation_history() {
 7238                                        if entry.timestamp > recent_timestamp {
 7239                                            recent_timestamp = entry.timestamp;
 7240                                            recent_pane = Some(pane_handle.clone());
 7241                                        }
 7242                                    }
 7243                                }
 7244
 7245                                if let Some(pane) = recent_pane {
 7246                                    let wrap_around = action.wrap_around;
 7247                                    pane.update(cx, |pane, cx| {
 7248                                        let current_index = pane.active_item_index();
 7249                                        let items_len = pane.items_len();
 7250                                        if items_len > 0 {
 7251                                            let prev_index = if current_index > 0 {
 7252                                                current_index - 1
 7253                                            } else if wrap_around {
 7254                                                items_len.saturating_sub(1)
 7255                                            } else {
 7256                                                return;
 7257                                            };
 7258                                            pane.activate_item(
 7259                                                prev_index, false, false, window, cx,
 7260                                            );
 7261                                        }
 7262                                    });
 7263                                    return;
 7264                                }
 7265                            }
 7266                        }
 7267                    }
 7268                    cx.propagate();
 7269                },
 7270            ))
 7271            .on_action(cx.listener(
 7272                |workspace: &mut Workspace, action: &pane::CloseActiveItem, window, cx| {
 7273                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 7274                        let dock = active_dock.read(cx);
 7275                        if let Some(active_panel) = dock.active_panel() {
 7276                            if active_panel.pane(cx).is_none() {
 7277                                let active_pane = workspace.active_pane().clone();
 7278                                active_pane.update(cx, |pane, cx| {
 7279                                    pane.close_active_item(action, window, cx)
 7280                                        .detach_and_log_err(cx);
 7281                                });
 7282                                return;
 7283                            }
 7284                        }
 7285                    }
 7286                    cx.propagate();
 7287                },
 7288            ))
 7289            .on_action(
 7290                cx.listener(|workspace, _: &ToggleReadOnlyFile, window, cx| {
 7291                    let pane = workspace.active_pane().clone();
 7292                    if let Some(item) = pane.read(cx).active_item() {
 7293                        item.toggle_read_only(window, cx);
 7294                    }
 7295                }),
 7296            )
 7297            .on_action(cx.listener(|workspace, _: &FocusCenterPane, window, cx| {
 7298                workspace.focus_center_pane(window, cx);
 7299            }))
 7300            .on_action(cx.listener(Workspace::cancel))
 7301    }
 7302
 7303    #[cfg(any(test, feature = "test-support"))]
 7304    pub fn set_random_database_id(&mut self) {
 7305        self.database_id = Some(WorkspaceId(Uuid::new_v4().as_u64_pair().0 as i64));
 7306    }
 7307
 7308    #[cfg(any(test, feature = "test-support"))]
 7309    pub(crate) fn test_new(
 7310        project: Entity<Project>,
 7311        window: &mut Window,
 7312        cx: &mut Context<Self>,
 7313    ) -> Self {
 7314        use node_runtime::NodeRuntime;
 7315        use session::Session;
 7316
 7317        let client = project.read(cx).client();
 7318        let user_store = project.read(cx).user_store();
 7319        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 7320        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 7321        window.activate_window();
 7322        let app_state = Arc::new(AppState {
 7323            languages: project.read(cx).languages().clone(),
 7324            workspace_store,
 7325            client,
 7326            user_store,
 7327            fs: project.read(cx).fs().clone(),
 7328            build_window_options: |_, _| Default::default(),
 7329            node_runtime: NodeRuntime::unavailable(),
 7330            session,
 7331        });
 7332        let workspace = Self::new(Default::default(), project, app_state, window, cx);
 7333        workspace
 7334            .active_pane
 7335            .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 7336        workspace
 7337    }
 7338
 7339    pub fn register_action<A: Action>(
 7340        &mut self,
 7341        callback: impl Fn(&mut Self, &A, &mut Window, &mut Context<Self>) + 'static,
 7342    ) -> &mut Self {
 7343        let callback = Arc::new(callback);
 7344
 7345        self.workspace_actions.push(Box::new(move |div, _, _, cx| {
 7346            let callback = callback.clone();
 7347            div.on_action(cx.listener(move |workspace, event, window, cx| {
 7348                (callback)(workspace, event, window, cx)
 7349            }))
 7350        }));
 7351        self
 7352    }
 7353    pub fn register_action_renderer(
 7354        &mut self,
 7355        callback: impl Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div + 'static,
 7356    ) -> &mut Self {
 7357        self.workspace_actions.push(Box::new(callback));
 7358        self
 7359    }
 7360
 7361    fn add_workspace_actions_listeners(
 7362        &self,
 7363        mut div: Div,
 7364        window: &mut Window,
 7365        cx: &mut Context<Self>,
 7366    ) -> Div {
 7367        for action in self.workspace_actions.iter() {
 7368            div = (action)(div, self, window, cx)
 7369        }
 7370        div
 7371    }
 7372
 7373    pub fn has_active_modal(&self, _: &mut Window, cx: &mut App) -> bool {
 7374        self.modal_layer.read(cx).has_active_modal()
 7375    }
 7376
 7377    pub fn is_active_modal_command_palette(&self, cx: &mut App) -> bool {
 7378        self.modal_layer
 7379            .read(cx)
 7380            .is_active_modal_command_palette(cx)
 7381    }
 7382
 7383    pub fn active_modal<V: ManagedView + 'static>(&self, cx: &App) -> Option<Entity<V>> {
 7384        self.modal_layer.read(cx).active_modal()
 7385    }
 7386
 7387    /// Toggles a modal of type `V`. If a modal of the same type is currently active,
 7388    /// it will be hidden. If a different modal is active, it will be replaced with the new one.
 7389    /// If no modal is active, the new modal will be shown.
 7390    ///
 7391    /// If closing the current modal fails (e.g., due to `on_before_dismiss` returning
 7392    /// `DismissDecision::Dismiss(false)` or `DismissDecision::Pending`), the new modal
 7393    /// will not be shown.
 7394    pub fn toggle_modal<V: ModalView, B>(&mut self, window: &mut Window, cx: &mut App, build: B)
 7395    where
 7396        B: FnOnce(&mut Window, &mut Context<V>) -> V,
 7397    {
 7398        self.modal_layer.update(cx, |modal_layer, cx| {
 7399            modal_layer.toggle_modal(window, cx, build)
 7400        })
 7401    }
 7402
 7403    pub fn hide_modal(&mut self, window: &mut Window, cx: &mut App) -> bool {
 7404        self.modal_layer
 7405            .update(cx, |modal_layer, cx| modal_layer.hide_modal(window, cx))
 7406    }
 7407
 7408    pub fn toggle_status_toast<V: ToastView>(&mut self, entity: Entity<V>, cx: &mut App) {
 7409        self.toast_layer
 7410            .update(cx, |toast_layer, cx| toast_layer.toggle_toast(cx, entity))
 7411    }
 7412
 7413    pub fn toggle_centered_layout(
 7414        &mut self,
 7415        _: &ToggleCenteredLayout,
 7416        _: &mut Window,
 7417        cx: &mut Context<Self>,
 7418    ) {
 7419        self.centered_layout = !self.centered_layout;
 7420        if let Some(database_id) = self.database_id() {
 7421            let db = WorkspaceDb::global(cx);
 7422            let centered_layout = self.centered_layout;
 7423            cx.background_spawn(async move {
 7424                db.set_centered_layout(database_id, centered_layout).await
 7425            })
 7426            .detach_and_log_err(cx);
 7427        }
 7428        cx.notify();
 7429    }
 7430
 7431    fn adjust_padding(padding: Option<f32>) -> f32 {
 7432        padding
 7433            .unwrap_or(CenteredPaddingSettings::default().0)
 7434            .clamp(
 7435                CenteredPaddingSettings::MIN_PADDING,
 7436                CenteredPaddingSettings::MAX_PADDING,
 7437            )
 7438    }
 7439
 7440    fn render_dock(
 7441        &self,
 7442        position: DockPosition,
 7443        dock: &Entity<Dock>,
 7444        window: &mut Window,
 7445        cx: &mut App,
 7446    ) -> Option<Div> {
 7447        if self.zoomed_position == Some(position) {
 7448            return None;
 7449        }
 7450
 7451        let leader_border = dock.read(cx).active_panel().and_then(|panel| {
 7452            let pane = panel.pane(cx)?;
 7453            let follower_states = &self.follower_states;
 7454            leader_border_for_pane(follower_states, &pane, window, cx)
 7455        });
 7456
 7457        let mut container = div()
 7458            .flex()
 7459            .overflow_hidden()
 7460            .flex_none()
 7461            .child(dock.clone())
 7462            .children(leader_border);
 7463
 7464        // Apply sizing only when the dock is open. When closed the dock is still
 7465        // included in the element tree so its focus handle remains mounted — without
 7466        // this, toggle_panel_focus cannot focus the panel when the dock is closed.
 7467        let dock = dock.read(cx);
 7468        if let Some(panel) = dock.visible_panel() {
 7469            let size_state = dock.stored_panel_size_state(panel.as_ref());
 7470            if position.axis() == Axis::Horizontal {
 7471                let use_flexible = panel.has_flexible_size(window, cx);
 7472                let flex_grow = if use_flexible {
 7473                    size_state
 7474                        .and_then(|state| state.flex)
 7475                        .or_else(|| self.default_dock_flex(position))
 7476                } else {
 7477                    None
 7478                };
 7479                if let Some(grow) = flex_grow {
 7480                    let grow = grow.max(0.001);
 7481                    let style = container.style();
 7482                    style.flex_grow = Some(grow);
 7483                    style.flex_shrink = Some(1.0);
 7484                    style.flex_basis = Some(relative(0.).into());
 7485                } else {
 7486                    let size = size_state
 7487                        .and_then(|state| state.size)
 7488                        .unwrap_or_else(|| panel.default_size(window, cx));
 7489                    container = container.w(size);
 7490                }
 7491            } else {
 7492                let size = size_state
 7493                    .and_then(|state| state.size)
 7494                    .unwrap_or_else(|| panel.default_size(window, cx));
 7495                container = container.h(size);
 7496            }
 7497        }
 7498
 7499        Some(container)
 7500    }
 7501
 7502    pub fn for_window(window: &Window, cx: &App) -> Option<Entity<Workspace>> {
 7503        window
 7504            .root::<MultiWorkspace>()
 7505            .flatten()
 7506            .map(|multi_workspace| multi_workspace.read(cx).workspace().clone())
 7507    }
 7508
 7509    pub fn zoomed_item(&self) -> Option<&AnyWeakView> {
 7510        self.zoomed.as_ref()
 7511    }
 7512
 7513    pub fn activate_next_window(&mut self, cx: &mut Context<Self>) {
 7514        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 7515            return;
 7516        };
 7517        let windows = cx.windows();
 7518        let next_window =
 7519            SystemWindowTabController::get_next_tab_group_window(cx, current_window_id).or_else(
 7520                || {
 7521                    windows
 7522                        .iter()
 7523                        .cycle()
 7524                        .skip_while(|window| window.window_id() != current_window_id)
 7525                        .nth(1)
 7526                },
 7527            );
 7528
 7529        if let Some(window) = next_window {
 7530            window
 7531                .update(cx, |_, window, _| window.activate_window())
 7532                .ok();
 7533        }
 7534    }
 7535
 7536    pub fn activate_previous_window(&mut self, cx: &mut Context<Self>) {
 7537        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 7538            return;
 7539        };
 7540        let windows = cx.windows();
 7541        let prev_window =
 7542            SystemWindowTabController::get_prev_tab_group_window(cx, current_window_id).or_else(
 7543                || {
 7544                    windows
 7545                        .iter()
 7546                        .rev()
 7547                        .cycle()
 7548                        .skip_while(|window| window.window_id() != current_window_id)
 7549                        .nth(1)
 7550                },
 7551            );
 7552
 7553        if let Some(window) = prev_window {
 7554            window
 7555                .update(cx, |_, window, _| window.activate_window())
 7556                .ok();
 7557        }
 7558    }
 7559
 7560    pub fn cancel(&mut self, _: &menu::Cancel, window: &mut Window, cx: &mut Context<Self>) {
 7561        if cx.stop_active_drag(window) {
 7562        } else if let Some((notification_id, _)) = self.notifications.pop() {
 7563            dismiss_app_notification(&notification_id, cx);
 7564        } else {
 7565            cx.propagate();
 7566        }
 7567    }
 7568
 7569    fn resize_dock(
 7570        &mut self,
 7571        dock_pos: DockPosition,
 7572        new_size: Pixels,
 7573        window: &mut Window,
 7574        cx: &mut Context<Self>,
 7575    ) {
 7576        match dock_pos {
 7577            DockPosition::Left => self.resize_left_dock(new_size, window, cx),
 7578            DockPosition::Right => self.resize_right_dock(new_size, window, cx),
 7579            DockPosition::Bottom => self.resize_bottom_dock(new_size, window, cx),
 7580        }
 7581    }
 7582
 7583    fn resize_left_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 7584        let workspace_width = self.bounds.size.width;
 7585        let mut size = new_size.min(workspace_width - RESIZE_HANDLE_SIZE);
 7586
 7587        self.right_dock.read_with(cx, |right_dock, cx| {
 7588            let right_dock_size = right_dock
 7589                .stored_active_panel_size(window, cx)
 7590                .unwrap_or(Pixels::ZERO);
 7591            if right_dock_size + size > workspace_width {
 7592                size = workspace_width - right_dock_size
 7593            }
 7594        });
 7595
 7596        let flex_grow = self.dock_flex_for_size(DockPosition::Left, size, window, cx);
 7597        self.left_dock.update(cx, |left_dock, cx| {
 7598            if WorkspaceSettings::get_global(cx)
 7599                .resize_all_panels_in_dock
 7600                .contains(&DockPosition::Left)
 7601            {
 7602                left_dock.resize_all_panels(Some(size), flex_grow, window, cx);
 7603            } else {
 7604                left_dock.resize_active_panel(Some(size), flex_grow, window, cx);
 7605            }
 7606        });
 7607    }
 7608
 7609    fn resize_right_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 7610        let workspace_width = self.bounds.size.width;
 7611        let mut size = new_size.min(workspace_width - RESIZE_HANDLE_SIZE);
 7612        self.left_dock.read_with(cx, |left_dock, cx| {
 7613            let left_dock_size = left_dock
 7614                .stored_active_panel_size(window, cx)
 7615                .unwrap_or(Pixels::ZERO);
 7616            if left_dock_size + size > workspace_width {
 7617                size = workspace_width - left_dock_size
 7618            }
 7619        });
 7620        let flex_grow = self.dock_flex_for_size(DockPosition::Right, size, window, cx);
 7621        self.right_dock.update(cx, |right_dock, cx| {
 7622            if WorkspaceSettings::get_global(cx)
 7623                .resize_all_panels_in_dock
 7624                .contains(&DockPosition::Right)
 7625            {
 7626                right_dock.resize_all_panels(Some(size), flex_grow, window, cx);
 7627            } else {
 7628                right_dock.resize_active_panel(Some(size), flex_grow, window, cx);
 7629            }
 7630        });
 7631    }
 7632
 7633    fn resize_bottom_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 7634        let size = new_size.min(self.bounds.bottom() - RESIZE_HANDLE_SIZE - self.bounds.top());
 7635        self.bottom_dock.update(cx, |bottom_dock, cx| {
 7636            if WorkspaceSettings::get_global(cx)
 7637                .resize_all_panels_in_dock
 7638                .contains(&DockPosition::Bottom)
 7639            {
 7640                bottom_dock.resize_all_panels(Some(size), None, window, cx);
 7641            } else {
 7642                bottom_dock.resize_active_panel(Some(size), None, window, cx);
 7643            }
 7644        });
 7645    }
 7646
 7647    fn toggle_edit_predictions_all_files(
 7648        &mut self,
 7649        _: &ToggleEditPrediction,
 7650        _window: &mut Window,
 7651        cx: &mut Context<Self>,
 7652    ) {
 7653        let fs = self.project().read(cx).fs().clone();
 7654        let show_edit_predictions = all_language_settings(None, cx).show_edit_predictions(None, cx);
 7655        update_settings_file(fs, cx, move |file, _| {
 7656            file.project.all_languages.defaults.show_edit_predictions = Some(!show_edit_predictions)
 7657        });
 7658    }
 7659
 7660    fn toggle_theme_mode(&mut self, _: &ToggleMode, _window: &mut Window, cx: &mut Context<Self>) {
 7661        let current_mode = ThemeSettings::get_global(cx).theme.mode();
 7662        let next_mode = match current_mode {
 7663            Some(theme_settings::ThemeAppearanceMode::Light) => {
 7664                theme_settings::ThemeAppearanceMode::Dark
 7665            }
 7666            Some(theme_settings::ThemeAppearanceMode::Dark) => {
 7667                theme_settings::ThemeAppearanceMode::Light
 7668            }
 7669            Some(theme_settings::ThemeAppearanceMode::System) | None => {
 7670                match cx.theme().appearance() {
 7671                    theme::Appearance::Light => theme_settings::ThemeAppearanceMode::Dark,
 7672                    theme::Appearance::Dark => theme_settings::ThemeAppearanceMode::Light,
 7673                }
 7674            }
 7675        };
 7676
 7677        let fs = self.project().read(cx).fs().clone();
 7678        settings::update_settings_file(fs, cx, move |settings, _cx| {
 7679            theme_settings::set_mode(settings, next_mode);
 7680        });
 7681    }
 7682
 7683    pub fn show_worktree_trust_security_modal(
 7684        &mut self,
 7685        toggle: bool,
 7686        window: &mut Window,
 7687        cx: &mut Context<Self>,
 7688    ) {
 7689        if let Some(security_modal) = self.active_modal::<SecurityModal>(cx) {
 7690            if toggle {
 7691                security_modal.update(cx, |security_modal, cx| {
 7692                    security_modal.dismiss(cx);
 7693                })
 7694            } else {
 7695                security_modal.update(cx, |security_modal, cx| {
 7696                    security_modal.refresh_restricted_paths(cx);
 7697                });
 7698            }
 7699        } else {
 7700            let has_restricted_worktrees = TrustedWorktrees::try_get_global(cx)
 7701                .map(|trusted_worktrees| {
 7702                    trusted_worktrees
 7703                        .read(cx)
 7704                        .has_restricted_worktrees(&self.project().read(cx).worktree_store(), cx)
 7705                })
 7706                .unwrap_or(false);
 7707            if has_restricted_worktrees {
 7708                let project = self.project().read(cx);
 7709                let remote_host = project
 7710                    .remote_connection_options(cx)
 7711                    .map(RemoteHostLocation::from);
 7712                let worktree_store = project.worktree_store().downgrade();
 7713                self.toggle_modal(window, cx, |_, cx| {
 7714                    SecurityModal::new(worktree_store, remote_host, cx)
 7715                });
 7716            }
 7717        }
 7718    }
 7719}
 7720
 7721pub trait AnyActiveCall {
 7722    fn entity(&self) -> AnyEntity;
 7723    fn is_in_room(&self, _: &App) -> bool;
 7724    fn room_id(&self, _: &App) -> Option<u64>;
 7725    fn channel_id(&self, _: &App) -> Option<ChannelId>;
 7726    fn hang_up(&self, _: &mut App) -> Task<Result<()>>;
 7727    fn unshare_project(&self, _: Entity<Project>, _: &mut App) -> Result<()>;
 7728    fn remote_participant_for_peer_id(&self, _: PeerId, _: &App) -> Option<RemoteCollaborator>;
 7729    fn is_sharing_project(&self, _: &App) -> bool;
 7730    fn has_remote_participants(&self, _: &App) -> bool;
 7731    fn local_participant_is_guest(&self, _: &App) -> bool;
 7732    fn client(&self, _: &App) -> Arc<Client>;
 7733    fn share_on_join(&self, _: &App) -> bool;
 7734    fn join_channel(&self, _: ChannelId, _: &mut App) -> Task<Result<bool>>;
 7735    fn room_update_completed(&self, _: &mut App) -> Task<()>;
 7736    fn most_active_project(&self, _: &App) -> Option<(u64, u64)>;
 7737    fn share_project(&self, _: Entity<Project>, _: &mut App) -> Task<Result<u64>>;
 7738    fn join_project(
 7739        &self,
 7740        _: u64,
 7741        _: Arc<LanguageRegistry>,
 7742        _: Arc<dyn Fs>,
 7743        _: &mut App,
 7744    ) -> Task<Result<Entity<Project>>>;
 7745    fn peer_id_for_user_in_room(&self, _: u64, _: &App) -> Option<PeerId>;
 7746    fn subscribe(
 7747        &self,
 7748        _: &mut Window,
 7749        _: &mut Context<Workspace>,
 7750        _: Box<dyn Fn(&mut Workspace, &ActiveCallEvent, &mut Window, &mut Context<Workspace>)>,
 7751    ) -> Subscription;
 7752    fn create_shared_screen(
 7753        &self,
 7754        _: PeerId,
 7755        _: &Entity<Pane>,
 7756        _: &mut Window,
 7757        _: &mut App,
 7758    ) -> Option<Entity<SharedScreen>>;
 7759}
 7760
 7761#[derive(Clone)]
 7762pub struct GlobalAnyActiveCall(pub Arc<dyn AnyActiveCall>);
 7763impl Global for GlobalAnyActiveCall {}
 7764
 7765impl GlobalAnyActiveCall {
 7766    pub(crate) fn try_global(cx: &App) -> Option<&Self> {
 7767        cx.try_global()
 7768    }
 7769
 7770    pub(crate) fn global(cx: &App) -> &Self {
 7771        cx.global()
 7772    }
 7773}
 7774
 7775/// Workspace-local view of a remote participant's location.
 7776#[derive(Clone, Copy, Debug, PartialEq, Eq)]
 7777pub enum ParticipantLocation {
 7778    SharedProject { project_id: u64 },
 7779    UnsharedProject,
 7780    External,
 7781}
 7782
 7783impl ParticipantLocation {
 7784    pub fn from_proto(location: Option<proto::ParticipantLocation>) -> Result<Self> {
 7785        match location
 7786            .and_then(|l| l.variant)
 7787            .context("participant location was not provided")?
 7788        {
 7789            proto::participant_location::Variant::SharedProject(project) => {
 7790                Ok(Self::SharedProject {
 7791                    project_id: project.id,
 7792                })
 7793            }
 7794            proto::participant_location::Variant::UnsharedProject(_) => Ok(Self::UnsharedProject),
 7795            proto::participant_location::Variant::External(_) => Ok(Self::External),
 7796        }
 7797    }
 7798}
 7799/// Workspace-local view of a remote collaborator's state.
 7800/// This is the subset of `call::RemoteParticipant` that workspace needs.
 7801#[derive(Clone)]
 7802pub struct RemoteCollaborator {
 7803    pub user: Arc<User>,
 7804    pub peer_id: PeerId,
 7805    pub location: ParticipantLocation,
 7806    pub participant_index: ParticipantIndex,
 7807}
 7808
 7809pub enum ActiveCallEvent {
 7810    ParticipantLocationChanged { participant_id: PeerId },
 7811    RemoteVideoTracksChanged { participant_id: PeerId },
 7812}
 7813
 7814fn leader_border_for_pane(
 7815    follower_states: &HashMap<CollaboratorId, FollowerState>,
 7816    pane: &Entity<Pane>,
 7817    _: &Window,
 7818    cx: &App,
 7819) -> Option<Div> {
 7820    let (leader_id, _follower_state) = follower_states.iter().find_map(|(leader_id, state)| {
 7821        if state.pane() == pane {
 7822            Some((*leader_id, state))
 7823        } else {
 7824            None
 7825        }
 7826    })?;
 7827
 7828    let mut leader_color = match leader_id {
 7829        CollaboratorId::PeerId(leader_peer_id) => {
 7830            let leader = GlobalAnyActiveCall::try_global(cx)?
 7831                .0
 7832                .remote_participant_for_peer_id(leader_peer_id, cx)?;
 7833
 7834            cx.theme()
 7835                .players()
 7836                .color_for_participant(leader.participant_index.0)
 7837                .cursor
 7838        }
 7839        CollaboratorId::Agent => cx.theme().players().agent().cursor,
 7840    };
 7841    leader_color.fade_out(0.3);
 7842    Some(
 7843        div()
 7844            .absolute()
 7845            .size_full()
 7846            .left_0()
 7847            .top_0()
 7848            .border_2()
 7849            .border_color(leader_color),
 7850    )
 7851}
 7852
 7853fn window_bounds_env_override() -> Option<Bounds<Pixels>> {
 7854    ZED_WINDOW_POSITION
 7855        .zip(*ZED_WINDOW_SIZE)
 7856        .map(|(position, size)| Bounds {
 7857            origin: position,
 7858            size,
 7859        })
 7860}
 7861
 7862fn open_items(
 7863    serialized_workspace: Option<SerializedWorkspace>,
 7864    mut project_paths_to_open: Vec<(PathBuf, Option<ProjectPath>)>,
 7865    window: &mut Window,
 7866    cx: &mut Context<Workspace>,
 7867) -> impl 'static + Future<Output = Result<Vec<Option<Result<Box<dyn ItemHandle>>>>>> + use<> {
 7868    let restored_items = serialized_workspace.map(|serialized_workspace| {
 7869        Workspace::load_workspace(
 7870            serialized_workspace,
 7871            project_paths_to_open
 7872                .iter()
 7873                .map(|(_, project_path)| project_path)
 7874                .cloned()
 7875                .collect(),
 7876            window,
 7877            cx,
 7878        )
 7879    });
 7880
 7881    cx.spawn_in(window, async move |workspace, cx| {
 7882        let mut opened_items = Vec::with_capacity(project_paths_to_open.len());
 7883
 7884        if let Some(restored_items) = restored_items {
 7885            let restored_items = restored_items.await?;
 7886
 7887            let restored_project_paths = restored_items
 7888                .iter()
 7889                .filter_map(|item| {
 7890                    cx.update(|_, cx| item.as_ref()?.project_path(cx))
 7891                        .ok()
 7892                        .flatten()
 7893                })
 7894                .collect::<HashSet<_>>();
 7895
 7896            for restored_item in restored_items {
 7897                opened_items.push(restored_item.map(Ok));
 7898            }
 7899
 7900            project_paths_to_open
 7901                .iter_mut()
 7902                .for_each(|(_, project_path)| {
 7903                    if let Some(project_path_to_open) = project_path
 7904                        && restored_project_paths.contains(project_path_to_open)
 7905                    {
 7906                        *project_path = None;
 7907                    }
 7908                });
 7909        } else {
 7910            for _ in 0..project_paths_to_open.len() {
 7911                opened_items.push(None);
 7912            }
 7913        }
 7914        assert!(opened_items.len() == project_paths_to_open.len());
 7915
 7916        let tasks =
 7917            project_paths_to_open
 7918                .into_iter()
 7919                .enumerate()
 7920                .map(|(ix, (abs_path, project_path))| {
 7921                    let workspace = workspace.clone();
 7922                    cx.spawn(async move |cx| {
 7923                        let file_project_path = project_path?;
 7924                        let abs_path_task = workspace.update(cx, |workspace, cx| {
 7925                            workspace.project().update(cx, |project, cx| {
 7926                                project.resolve_abs_path(abs_path.to_string_lossy().as_ref(), cx)
 7927                            })
 7928                        });
 7929
 7930                        // We only want to open file paths here. If one of the items
 7931                        // here is a directory, it was already opened further above
 7932                        // with a `find_or_create_worktree`.
 7933                        if let Ok(task) = abs_path_task
 7934                            && task.await.is_none_or(|p| p.is_file())
 7935                        {
 7936                            return Some((
 7937                                ix,
 7938                                workspace
 7939                                    .update_in(cx, |workspace, window, cx| {
 7940                                        workspace.open_path(
 7941                                            file_project_path,
 7942                                            None,
 7943                                            true,
 7944                                            window,
 7945                                            cx,
 7946                                        )
 7947                                    })
 7948                                    .log_err()?
 7949                                    .await,
 7950                            ));
 7951                        }
 7952                        None
 7953                    })
 7954                });
 7955
 7956        let tasks = tasks.collect::<Vec<_>>();
 7957
 7958        let tasks = futures::future::join_all(tasks);
 7959        for (ix, path_open_result) in tasks.await.into_iter().flatten() {
 7960            opened_items[ix] = Some(path_open_result);
 7961        }
 7962
 7963        Ok(opened_items)
 7964    })
 7965}
 7966
 7967#[derive(Clone)]
 7968enum ActivateInDirectionTarget {
 7969    Pane(Entity<Pane>),
 7970    Dock(Entity<Dock>),
 7971    Sidebar(FocusHandle),
 7972}
 7973
 7974fn notify_if_database_failed(window: WindowHandle<MultiWorkspace>, cx: &mut AsyncApp) {
 7975    window
 7976        .update(cx, |multi_workspace, _, cx| {
 7977            let workspace = multi_workspace.workspace().clone();
 7978            workspace.update(cx, |workspace, cx| {
 7979                if (*db::ALL_FILE_DB_FAILED).load(std::sync::atomic::Ordering::Acquire) {
 7980                    struct DatabaseFailedNotification;
 7981
 7982                    workspace.show_notification(
 7983                        NotificationId::unique::<DatabaseFailedNotification>(),
 7984                        cx,
 7985                        |cx| {
 7986                            cx.new(|cx| {
 7987                                MessageNotification::new("Failed to load the database file.", cx)
 7988                                    .primary_message("File an Issue")
 7989                                    .primary_icon(IconName::Plus)
 7990                                    .primary_on_click(|window, cx| {
 7991                                        window.dispatch_action(Box::new(FileBugReport), cx)
 7992                                    })
 7993                            })
 7994                        },
 7995                    );
 7996                }
 7997            });
 7998        })
 7999        .log_err();
 8000}
 8001
 8002fn px_with_ui_font_fallback(val: u32, cx: &Context<Workspace>) -> Pixels {
 8003    if val == 0 {
 8004        ThemeSettings::get_global(cx).ui_font_size(cx)
 8005    } else {
 8006        px(val as f32)
 8007    }
 8008}
 8009
 8010fn adjust_active_dock_size_by_px(
 8011    px: Pixels,
 8012    workspace: &mut Workspace,
 8013    window: &mut Window,
 8014    cx: &mut Context<Workspace>,
 8015) {
 8016    let Some(active_dock) = workspace
 8017        .all_docks()
 8018        .into_iter()
 8019        .find(|dock| dock.focus_handle(cx).contains_focused(window, cx))
 8020    else {
 8021        return;
 8022    };
 8023    let dock = active_dock.read(cx);
 8024    let Some(panel_size) = workspace.dock_size(&dock, window, cx) else {
 8025        return;
 8026    };
 8027    workspace.resize_dock(dock.position(), panel_size + px, window, cx);
 8028}
 8029
 8030fn adjust_open_docks_size_by_px(
 8031    px: Pixels,
 8032    workspace: &mut Workspace,
 8033    window: &mut Window,
 8034    cx: &mut Context<Workspace>,
 8035) {
 8036    let docks = workspace
 8037        .all_docks()
 8038        .into_iter()
 8039        .filter_map(|dock_entity| {
 8040            let dock = dock_entity.read(cx);
 8041            if dock.is_open() {
 8042                let dock_pos = dock.position();
 8043                let panel_size = workspace.dock_size(&dock, window, cx)?;
 8044                Some((dock_pos, panel_size + px))
 8045            } else {
 8046                None
 8047            }
 8048        })
 8049        .collect::<Vec<_>>();
 8050
 8051    for (position, new_size) in docks {
 8052        workspace.resize_dock(position, new_size, window, cx);
 8053    }
 8054}
 8055
 8056impl Focusable for Workspace {
 8057    fn focus_handle(&self, cx: &App) -> FocusHandle {
 8058        self.active_pane.focus_handle(cx)
 8059    }
 8060}
 8061
 8062#[derive(Clone)]
 8063struct DraggedDock(DockPosition);
 8064
 8065impl Render for DraggedDock {
 8066    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
 8067        gpui::Empty
 8068    }
 8069}
 8070
 8071impl Render for Workspace {
 8072    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
 8073        static FIRST_PAINT: AtomicBool = AtomicBool::new(true);
 8074        if FIRST_PAINT.swap(false, std::sync::atomic::Ordering::Relaxed) {
 8075            log::info!("Rendered first frame");
 8076        }
 8077
 8078        let centered_layout = self.centered_layout
 8079            && self.center.panes().len() == 1
 8080            && self.active_item(cx).is_some();
 8081        let render_padding = |size| {
 8082            (size > 0.0).then(|| {
 8083                div()
 8084                    .h_full()
 8085                    .w(relative(size))
 8086                    .bg(cx.theme().colors().editor_background)
 8087                    .border_color(cx.theme().colors().pane_group_border)
 8088            })
 8089        };
 8090        let paddings = if centered_layout {
 8091            let settings = WorkspaceSettings::get_global(cx).centered_layout;
 8092            (
 8093                render_padding(Self::adjust_padding(
 8094                    settings.left_padding.map(|padding| padding.0),
 8095                )),
 8096                render_padding(Self::adjust_padding(
 8097                    settings.right_padding.map(|padding| padding.0),
 8098                )),
 8099            )
 8100        } else {
 8101            (None, None)
 8102        };
 8103        let ui_font = theme_settings::setup_ui_font(window, cx);
 8104
 8105        let theme = cx.theme().clone();
 8106        let colors = theme.colors();
 8107        let notification_entities = self
 8108            .notifications
 8109            .iter()
 8110            .map(|(_, notification)| notification.entity_id())
 8111            .collect::<Vec<_>>();
 8112        let bottom_dock_layout = WorkspaceSettings::get_global(cx).bottom_dock_layout;
 8113
 8114        div()
 8115            .relative()
 8116            .size_full()
 8117            .flex()
 8118            .flex_col()
 8119            .font(ui_font)
 8120            .gap_0()
 8121                .justify_start()
 8122                .items_start()
 8123                .text_color(colors.text)
 8124                .overflow_hidden()
 8125                .children(self.titlebar_item.clone())
 8126                .on_modifiers_changed(move |_, _, cx| {
 8127                    for &id in &notification_entities {
 8128                        cx.notify(id);
 8129                    }
 8130                })
 8131                .child(
 8132                    div()
 8133                        .size_full()
 8134                        .relative()
 8135                        .flex_1()
 8136                        .flex()
 8137                        .flex_col()
 8138                        .child(
 8139                            div()
 8140                                .id("workspace")
 8141                                .bg(colors.background)
 8142                                .relative()
 8143                                .flex_1()
 8144                                .w_full()
 8145                                .flex()
 8146                                .flex_col()
 8147                                .overflow_hidden()
 8148                                .border_t_1()
 8149                                .border_b_1()
 8150                                .border_color(colors.border)
 8151                                .child({
 8152                                    let this = cx.entity();
 8153                                    canvas(
 8154                                        move |bounds, window, cx| {
 8155                                            this.update(cx, |this, cx| {
 8156                                                let bounds_changed = this.bounds != bounds;
 8157                                                this.bounds = bounds;
 8158
 8159                                                if bounds_changed {
 8160                                                    this.left_dock.update(cx, |dock, cx| {
 8161                                                        dock.clamp_panel_size(
 8162                                                            bounds.size.width,
 8163                                                            window,
 8164                                                            cx,
 8165                                                        )
 8166                                                    });
 8167
 8168                                                    this.right_dock.update(cx, |dock, cx| {
 8169                                                        dock.clamp_panel_size(
 8170                                                            bounds.size.width,
 8171                                                            window,
 8172                                                            cx,
 8173                                                        )
 8174                                                    });
 8175
 8176                                                    this.bottom_dock.update(cx, |dock, cx| {
 8177                                                        dock.clamp_panel_size(
 8178                                                            bounds.size.height,
 8179                                                            window,
 8180                                                            cx,
 8181                                                        )
 8182                                                    });
 8183                                                }
 8184                                            })
 8185                                        },
 8186                                        |_, _, _, _| {},
 8187                                    )
 8188                                    .absolute()
 8189                                    .size_full()
 8190                                })
 8191                                .when(self.zoomed.is_none(), |this| {
 8192                                    this.on_drag_move(cx.listener(
 8193                                        move |workspace,
 8194                                              e: &DragMoveEvent<DraggedDock>,
 8195                                              window,
 8196                                              cx| {
 8197                                            if workspace.previous_dock_drag_coordinates
 8198                                                != Some(e.event.position)
 8199                                            {
 8200                                                workspace.previous_dock_drag_coordinates =
 8201                                                    Some(e.event.position);
 8202
 8203                                                match e.drag(cx).0 {
 8204                                                    DockPosition::Left => {
 8205                                                        workspace.resize_left_dock(
 8206                                                            e.event.position.x
 8207                                                                - workspace.bounds.left(),
 8208                                                            window,
 8209                                                            cx,
 8210                                                        );
 8211                                                    }
 8212                                                    DockPosition::Right => {
 8213                                                        workspace.resize_right_dock(
 8214                                                            workspace.bounds.right()
 8215                                                                - e.event.position.x,
 8216                                                            window,
 8217                                                            cx,
 8218                                                        );
 8219                                                    }
 8220                                                    DockPosition::Bottom => {
 8221                                                        workspace.resize_bottom_dock(
 8222                                                            workspace.bounds.bottom()
 8223                                                                - e.event.position.y,
 8224                                                            window,
 8225                                                            cx,
 8226                                                        );
 8227                                                    }
 8228                                                };
 8229                                                workspace.serialize_workspace(window, cx);
 8230                                            }
 8231                                        },
 8232                                    ))
 8233
 8234                                })
 8235                                .child({
 8236                                    match bottom_dock_layout {
 8237                                        BottomDockLayout::Full => div()
 8238                                            .flex()
 8239                                            .flex_col()
 8240                                            .h_full()
 8241                                            .child(
 8242                                                div()
 8243                                                    .flex()
 8244                                                    .flex_row()
 8245                                                    .flex_1()
 8246                                                    .overflow_hidden()
 8247                                                    .children(self.render_dock(
 8248                                                        DockPosition::Left,
 8249                                                        &self.left_dock,
 8250                                                        window,
 8251                                                        cx,
 8252                                                    ))
 8253
 8254                                                    .child(
 8255                                                        div()
 8256                                                            .flex()
 8257                                                            .flex_col()
 8258                                                            .flex_1()
 8259                                                            .overflow_hidden()
 8260                                                            .child(
 8261                                                                h_flex()
 8262                                                                    .flex_1()
 8263                                                                    .when_some(
 8264                                                                        paddings.0,
 8265                                                                        |this, p| {
 8266                                                                            this.child(
 8267                                                                                p.border_r_1(),
 8268                                                                            )
 8269                                                                        },
 8270                                                                    )
 8271                                                                    .child(self.center.render(
 8272                                                                        self.zoomed.as_ref(),
 8273                                                                        &PaneRenderContext {
 8274                                                                            follower_states:
 8275                                                                                &self.follower_states,
 8276                                                                            active_call: self.active_call(),
 8277                                                                            active_pane: &self.active_pane,
 8278                                                                            app_state: &self.app_state,
 8279                                                                            project: &self.project,
 8280                                                                            workspace: &self.weak_self,
 8281                                                                        },
 8282                                                                        window,
 8283                                                                        cx,
 8284                                                                    ))
 8285                                                                    .when_some(
 8286                                                                        paddings.1,
 8287                                                                        |this, p| {
 8288                                                                            this.child(
 8289                                                                                p.border_l_1(),
 8290                                                                            )
 8291                                                                        },
 8292                                                                    ),
 8293                                                            ),
 8294                                                    )
 8295
 8296                                                    .children(self.render_dock(
 8297                                                        DockPosition::Right,
 8298                                                        &self.right_dock,
 8299                                                        window,
 8300                                                        cx,
 8301                                                    )),
 8302                                            )
 8303                                            .child(div().w_full().children(self.render_dock(
 8304                                                DockPosition::Bottom,
 8305                                                &self.bottom_dock,
 8306                                                window,
 8307                                                cx
 8308                                            ))),
 8309
 8310                                        BottomDockLayout::LeftAligned => div()
 8311                                            .flex()
 8312                                            .flex_row()
 8313                                            .h_full()
 8314                                            .child(
 8315                                                div()
 8316                                                    .flex()
 8317                                                    .flex_col()
 8318                                                    .flex_1()
 8319                                                    .h_full()
 8320                                                    .child(
 8321                                                        div()
 8322                                                            .flex()
 8323                                                            .flex_row()
 8324                                                            .flex_1()
 8325                                                            .children(self.render_dock(DockPosition::Left, &self.left_dock, window, cx))
 8326
 8327                                                            .child(
 8328                                                                div()
 8329                                                                    .flex()
 8330                                                                    .flex_col()
 8331                                                                    .flex_1()
 8332                                                                    .overflow_hidden()
 8333                                                                    .child(
 8334                                                                        h_flex()
 8335                                                                            .flex_1()
 8336                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 8337                                                                            .child(self.center.render(
 8338                                                                                self.zoomed.as_ref(),
 8339                                                                                &PaneRenderContext {
 8340                                                                                    follower_states:
 8341                                                                                        &self.follower_states,
 8342                                                                                    active_call: self.active_call(),
 8343                                                                                    active_pane: &self.active_pane,
 8344                                                                                    app_state: &self.app_state,
 8345                                                                                    project: &self.project,
 8346                                                                                    workspace: &self.weak_self,
 8347                                                                                },
 8348                                                                                window,
 8349                                                                                cx,
 8350                                                                            ))
 8351                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 8352                                                                    )
 8353                                                            )
 8354
 8355                                                    )
 8356                                                    .child(
 8357                                                        div()
 8358                                                            .w_full()
 8359                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 8360                                                    ),
 8361                                            )
 8362                                            .children(self.render_dock(
 8363                                                DockPosition::Right,
 8364                                                &self.right_dock,
 8365                                                window,
 8366                                                cx,
 8367                                            )),
 8368                                        BottomDockLayout::RightAligned => div()
 8369                                            .flex()
 8370                                            .flex_row()
 8371                                            .h_full()
 8372                                            .children(self.render_dock(
 8373                                                DockPosition::Left,
 8374                                                &self.left_dock,
 8375                                                window,
 8376                                                cx,
 8377                                            ))
 8378
 8379                                            .child(
 8380                                                div()
 8381                                                    .flex()
 8382                                                    .flex_col()
 8383                                                    .flex_1()
 8384                                                    .h_full()
 8385                                                    .child(
 8386                                                        div()
 8387                                                            .flex()
 8388                                                            .flex_row()
 8389                                                            .flex_1()
 8390                                                            .child(
 8391                                                                div()
 8392                                                                    .flex()
 8393                                                                    .flex_col()
 8394                                                                    .flex_1()
 8395                                                                    .overflow_hidden()
 8396                                                                    .child(
 8397                                                                        h_flex()
 8398                                                                            .flex_1()
 8399                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 8400                                                                            .child(self.center.render(
 8401                                                                                self.zoomed.as_ref(),
 8402                                                                                &PaneRenderContext {
 8403                                                                                    follower_states:
 8404                                                                                        &self.follower_states,
 8405                                                                                    active_call: self.active_call(),
 8406                                                                                    active_pane: &self.active_pane,
 8407                                                                                    app_state: &self.app_state,
 8408                                                                                    project: &self.project,
 8409                                                                                    workspace: &self.weak_self,
 8410                                                                                },
 8411                                                                                window,
 8412                                                                                cx,
 8413                                                                            ))
 8414                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 8415                                                                    )
 8416                                                            )
 8417
 8418                                                            .children(self.render_dock(DockPosition::Right, &self.right_dock, window, cx))
 8419                                                    )
 8420                                                    .child(
 8421                                                        div()
 8422                                                            .w_full()
 8423                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 8424                                                    ),
 8425                                            ),
 8426                                        BottomDockLayout::Contained => div()
 8427                                            .flex()
 8428                                            .flex_row()
 8429                                            .h_full()
 8430                                            .children(self.render_dock(
 8431                                                DockPosition::Left,
 8432                                                &self.left_dock,
 8433                                                window,
 8434                                                cx,
 8435                                            ))
 8436
 8437                                            .child(
 8438                                                div()
 8439                                                    .flex()
 8440                                                    .flex_col()
 8441                                                    .flex_1()
 8442                                                    .overflow_hidden()
 8443                                                    .child(
 8444                                                        h_flex()
 8445                                                            .flex_1()
 8446                                                            .when_some(paddings.0, |this, p| {
 8447                                                                this.child(p.border_r_1())
 8448                                                            })
 8449                                                            .child(self.center.render(
 8450                                                                self.zoomed.as_ref(),
 8451                                                                &PaneRenderContext {
 8452                                                                    follower_states:
 8453                                                                        &self.follower_states,
 8454                                                                    active_call: self.active_call(),
 8455                                                                    active_pane: &self.active_pane,
 8456                                                                    app_state: &self.app_state,
 8457                                                                    project: &self.project,
 8458                                                                    workspace: &self.weak_self,
 8459                                                                },
 8460                                                                window,
 8461                                                                cx,
 8462                                                            ))
 8463                                                            .when_some(paddings.1, |this, p| {
 8464                                                                this.child(p.border_l_1())
 8465                                                            }),
 8466                                                    )
 8467                                                    .children(self.render_dock(
 8468                                                        DockPosition::Bottom,
 8469                                                        &self.bottom_dock,
 8470                                                        window,
 8471                                                        cx,
 8472                                                    )),
 8473                                            )
 8474
 8475                                            .children(self.render_dock(
 8476                                                DockPosition::Right,
 8477                                                &self.right_dock,
 8478                                                window,
 8479                                                cx,
 8480                                            )),
 8481                                    }
 8482                                })
 8483                                .children(self.zoomed.as_ref().and_then(|view| {
 8484                                    let zoomed_view = view.upgrade()?;
 8485                                    let div = div()
 8486                                        .occlude()
 8487                                        .absolute()
 8488                                        .overflow_hidden()
 8489                                        .border_color(colors.border)
 8490                                        .bg(colors.background)
 8491                                        .child(zoomed_view)
 8492                                        .inset_0()
 8493                                        .shadow_lg();
 8494
 8495                                    if !WorkspaceSettings::get_global(cx).zoomed_padding {
 8496                                       return Some(div);
 8497                                    }
 8498
 8499                                    Some(match self.zoomed_position {
 8500                                        Some(DockPosition::Left) => div.right_2().border_r_1(),
 8501                                        Some(DockPosition::Right) => div.left_2().border_l_1(),
 8502                                        Some(DockPosition::Bottom) => div.top_2().border_t_1(),
 8503                                        None => {
 8504                                            div.top_2().bottom_2().left_2().right_2().border_1()
 8505                                        }
 8506                                    })
 8507                                }))
 8508                                .children(self.render_notifications(window, cx)),
 8509                        )
 8510                        .when(self.status_bar_visible(cx), |parent| {
 8511                            parent.child(self.status_bar.clone())
 8512                        })
 8513                        .child(self.toast_layer.clone()),
 8514                )
 8515    }
 8516}
 8517
 8518impl WorkspaceStore {
 8519    pub fn new(client: Arc<Client>, cx: &mut Context<Self>) -> Self {
 8520        Self {
 8521            workspaces: Default::default(),
 8522            _subscriptions: vec![
 8523                client.add_request_handler(cx.weak_entity(), Self::handle_follow),
 8524                client.add_message_handler(cx.weak_entity(), Self::handle_update_followers),
 8525            ],
 8526            client,
 8527        }
 8528    }
 8529
 8530    pub fn update_followers(
 8531        &self,
 8532        project_id: Option<u64>,
 8533        update: proto::update_followers::Variant,
 8534        cx: &App,
 8535    ) -> Option<()> {
 8536        let active_call = GlobalAnyActiveCall::try_global(cx)?;
 8537        let room_id = active_call.0.room_id(cx)?;
 8538        self.client
 8539            .send(proto::UpdateFollowers {
 8540                room_id,
 8541                project_id,
 8542                variant: Some(update),
 8543            })
 8544            .log_err()
 8545    }
 8546
 8547    pub async fn handle_follow(
 8548        this: Entity<Self>,
 8549        envelope: TypedEnvelope<proto::Follow>,
 8550        mut cx: AsyncApp,
 8551    ) -> Result<proto::FollowResponse> {
 8552        this.update(&mut cx, |this, cx| {
 8553            let follower = Follower {
 8554                project_id: envelope.payload.project_id,
 8555                peer_id: envelope.original_sender_id()?,
 8556            };
 8557
 8558            let mut response = proto::FollowResponse::default();
 8559
 8560            this.workspaces.retain(|(window_handle, weak_workspace)| {
 8561                let Some(workspace) = weak_workspace.upgrade() else {
 8562                    return false;
 8563                };
 8564                window_handle
 8565                    .update(cx, |_, window, cx| {
 8566                        workspace.update(cx, |workspace, cx| {
 8567                            let handler_response =
 8568                                workspace.handle_follow(follower.project_id, window, cx);
 8569                            if let Some(active_view) = handler_response.active_view
 8570                                && workspace.project.read(cx).remote_id() == follower.project_id
 8571                            {
 8572                                response.active_view = Some(active_view)
 8573                            }
 8574                        });
 8575                    })
 8576                    .is_ok()
 8577            });
 8578
 8579            Ok(response)
 8580        })
 8581    }
 8582
 8583    async fn handle_update_followers(
 8584        this: Entity<Self>,
 8585        envelope: TypedEnvelope<proto::UpdateFollowers>,
 8586        mut cx: AsyncApp,
 8587    ) -> Result<()> {
 8588        let leader_id = envelope.original_sender_id()?;
 8589        let update = envelope.payload;
 8590
 8591        this.update(&mut cx, |this, cx| {
 8592            this.workspaces.retain(|(window_handle, weak_workspace)| {
 8593                let Some(workspace) = weak_workspace.upgrade() else {
 8594                    return false;
 8595                };
 8596                window_handle
 8597                    .update(cx, |_, window, cx| {
 8598                        workspace.update(cx, |workspace, cx| {
 8599                            let project_id = workspace.project.read(cx).remote_id();
 8600                            if update.project_id != project_id && update.project_id.is_some() {
 8601                                return;
 8602                            }
 8603                            workspace.handle_update_followers(
 8604                                leader_id,
 8605                                update.clone(),
 8606                                window,
 8607                                cx,
 8608                            );
 8609                        });
 8610                    })
 8611                    .is_ok()
 8612            });
 8613            Ok(())
 8614        })
 8615    }
 8616
 8617    pub fn workspaces(&self) -> impl Iterator<Item = &WeakEntity<Workspace>> {
 8618        self.workspaces.iter().map(|(_, weak)| weak)
 8619    }
 8620
 8621    pub fn workspaces_with_windows(
 8622        &self,
 8623    ) -> impl Iterator<Item = (gpui::AnyWindowHandle, &WeakEntity<Workspace>)> {
 8624        self.workspaces.iter().map(|(window, weak)| (*window, weak))
 8625    }
 8626}
 8627
 8628impl ViewId {
 8629    pub(crate) fn from_proto(message: proto::ViewId) -> Result<Self> {
 8630        Ok(Self {
 8631            creator: message
 8632                .creator
 8633                .map(CollaboratorId::PeerId)
 8634                .context("creator is missing")?,
 8635            id: message.id,
 8636        })
 8637    }
 8638
 8639    pub(crate) fn to_proto(self) -> Option<proto::ViewId> {
 8640        if let CollaboratorId::PeerId(peer_id) = self.creator {
 8641            Some(proto::ViewId {
 8642                creator: Some(peer_id),
 8643                id: self.id,
 8644            })
 8645        } else {
 8646            None
 8647        }
 8648    }
 8649}
 8650
 8651impl FollowerState {
 8652    fn pane(&self) -> &Entity<Pane> {
 8653        self.dock_pane.as_ref().unwrap_or(&self.center_pane)
 8654    }
 8655}
 8656
 8657pub trait WorkspaceHandle {
 8658    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath>;
 8659}
 8660
 8661impl WorkspaceHandle for Entity<Workspace> {
 8662    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath> {
 8663        self.read(cx)
 8664            .worktrees(cx)
 8665            .flat_map(|worktree| {
 8666                let worktree_id = worktree.read(cx).id();
 8667                worktree.read(cx).files(true, 0).map(move |f| ProjectPath {
 8668                    worktree_id,
 8669                    path: f.path.clone(),
 8670                })
 8671            })
 8672            .collect::<Vec<_>>()
 8673    }
 8674}
 8675
 8676pub async fn last_opened_workspace_location(
 8677    db: &WorkspaceDb,
 8678    fs: &dyn fs::Fs,
 8679) -> Option<(WorkspaceId, SerializedWorkspaceLocation, PathList)> {
 8680    db.last_workspace(fs)
 8681        .await
 8682        .log_err()
 8683        .flatten()
 8684        .map(|(id, location, paths, _timestamp)| (id, location, paths))
 8685}
 8686
 8687pub async fn last_session_workspace_locations(
 8688    db: &WorkspaceDb,
 8689    last_session_id: &str,
 8690    last_session_window_stack: Option<Vec<WindowId>>,
 8691    fs: &dyn fs::Fs,
 8692) -> Option<Vec<SessionWorkspace>> {
 8693    db.last_session_workspace_locations(last_session_id, last_session_window_stack, fs)
 8694        .await
 8695        .log_err()
 8696}
 8697
 8698pub async fn restore_multiworkspace(
 8699    multi_workspace: SerializedMultiWorkspace,
 8700    app_state: Arc<AppState>,
 8701    cx: &mut AsyncApp,
 8702) -> anyhow::Result<WindowHandle<MultiWorkspace>> {
 8703    let SerializedMultiWorkspace {
 8704        active_workspace,
 8705        state,
 8706    } = multi_workspace;
 8707    let MultiWorkspaceState {
 8708        sidebar_open,
 8709        project_group_keys,
 8710        sidebar_state,
 8711        ..
 8712    } = state;
 8713
 8714    let window_handle = if active_workspace.paths.is_empty() {
 8715        cx.update(|cx| {
 8716            open_workspace_by_id(active_workspace.workspace_id, app_state.clone(), None, cx)
 8717        })
 8718        .await?
 8719    } else {
 8720        let OpenResult { window, .. } = cx
 8721            .update(|cx| {
 8722                Workspace::new_local(
 8723                    active_workspace.paths.paths().to_vec(),
 8724                    app_state.clone(),
 8725                    None,
 8726                    None,
 8727                    None,
 8728                    OpenMode::Activate,
 8729                    cx,
 8730                )
 8731            })
 8732            .await?;
 8733        window
 8734    };
 8735
 8736    if !project_group_keys.is_empty() {
 8737        let restored_keys: Vec<ProjectGroupKey> =
 8738            project_group_keys.into_iter().map(Into::into).collect();
 8739        window_handle
 8740            .update(cx, |multi_workspace, _window, _cx| {
 8741                multi_workspace.restore_project_group_keys(restored_keys);
 8742            })
 8743            .ok();
 8744    }
 8745
 8746    if sidebar_open {
 8747        window_handle
 8748            .update(cx, |multi_workspace, _, cx| {
 8749                multi_workspace.open_sidebar(cx);
 8750            })
 8751            .ok();
 8752    }
 8753
 8754    if let Some(sidebar_state) = sidebar_state {
 8755        window_handle
 8756            .update(cx, |multi_workspace, window, cx| {
 8757                if let Some(sidebar) = multi_workspace.sidebar() {
 8758                    sidebar.restore_serialized_state(&sidebar_state, window, cx);
 8759                }
 8760                multi_workspace.serialize(cx);
 8761            })
 8762            .ok();
 8763    }
 8764
 8765    window_handle
 8766        .update(cx, |_, window, _cx| {
 8767            window.activate_window();
 8768        })
 8769        .ok();
 8770
 8771    Ok(window_handle)
 8772}
 8773
 8774actions!(
 8775    collab,
 8776    [
 8777        /// Opens the channel notes for the current call.
 8778        ///
 8779        /// Use `collab_panel::OpenSelectedChannelNotes` to open the channel notes for the selected
 8780        /// channel in the collab panel.
 8781        ///
 8782        /// If you want to open a specific channel, use `zed::OpenZedUrl` with a channel notes URL -
 8783        /// can be copied via "Copy link to section" in the context menu of the channel notes
 8784        /// buffer. These URLs look like `https://zed.dev/channel/channel-name-CHANNEL_ID/notes`.
 8785        OpenChannelNotes,
 8786        /// Mutes your microphone.
 8787        Mute,
 8788        /// Deafens yourself (mute both microphone and speakers).
 8789        Deafen,
 8790        /// Leaves the current call.
 8791        LeaveCall,
 8792        /// Shares the current project with collaborators.
 8793        ShareProject,
 8794        /// Shares your screen with collaborators.
 8795        ScreenShare,
 8796        /// Copies the current room name and session id for debugging purposes.
 8797        CopyRoomId,
 8798    ]
 8799);
 8800
 8801/// Opens the channel notes for a specific channel by its ID.
 8802#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
 8803#[action(namespace = collab)]
 8804#[serde(deny_unknown_fields)]
 8805pub struct OpenChannelNotesById {
 8806    pub channel_id: u64,
 8807}
 8808
 8809actions!(
 8810    zed,
 8811    [
 8812        /// Opens the Zed log file.
 8813        OpenLog,
 8814        /// Reveals the Zed log file in the system file manager.
 8815        RevealLogInFileManager
 8816    ]
 8817);
 8818
 8819async fn join_channel_internal(
 8820    channel_id: ChannelId,
 8821    app_state: &Arc<AppState>,
 8822    requesting_window: Option<WindowHandle<MultiWorkspace>>,
 8823    requesting_workspace: Option<WeakEntity<Workspace>>,
 8824    active_call: &dyn AnyActiveCall,
 8825    cx: &mut AsyncApp,
 8826) -> Result<bool> {
 8827    let (should_prompt, already_in_channel) = cx.update(|cx| {
 8828        if !active_call.is_in_room(cx) {
 8829            return (false, false);
 8830        }
 8831
 8832        let already_in_channel = active_call.channel_id(cx) == Some(channel_id);
 8833        let should_prompt = active_call.is_sharing_project(cx)
 8834            && active_call.has_remote_participants(cx)
 8835            && !already_in_channel;
 8836        (should_prompt, already_in_channel)
 8837    });
 8838
 8839    if already_in_channel {
 8840        let task = cx.update(|cx| {
 8841            if let Some((project, host)) = active_call.most_active_project(cx) {
 8842                Some(join_in_room_project(project, host, app_state.clone(), cx))
 8843            } else {
 8844                None
 8845            }
 8846        });
 8847        if let Some(task) = task {
 8848            task.await?;
 8849        }
 8850        return anyhow::Ok(true);
 8851    }
 8852
 8853    if should_prompt {
 8854        if let Some(multi_workspace) = requesting_window {
 8855            let answer = multi_workspace
 8856                .update(cx, |_, window, cx| {
 8857                    window.prompt(
 8858                        PromptLevel::Warning,
 8859                        "Do you want to switch channels?",
 8860                        Some("Leaving this call will unshare your current project."),
 8861                        &["Yes, Join Channel", "Cancel"],
 8862                        cx,
 8863                    )
 8864                })?
 8865                .await;
 8866
 8867            if answer == Ok(1) {
 8868                return Ok(false);
 8869            }
 8870        } else {
 8871            return Ok(false);
 8872        }
 8873    }
 8874
 8875    let client = cx.update(|cx| active_call.client(cx));
 8876
 8877    let mut client_status = client.status();
 8878
 8879    // this loop will terminate within client::CONNECTION_TIMEOUT seconds.
 8880    'outer: loop {
 8881        let Some(status) = client_status.recv().await else {
 8882            anyhow::bail!("error connecting");
 8883        };
 8884
 8885        match status {
 8886            Status::Connecting
 8887            | Status::Authenticating
 8888            | Status::Authenticated
 8889            | Status::Reconnecting
 8890            | Status::Reauthenticating
 8891            | Status::Reauthenticated => continue,
 8892            Status::Connected { .. } => break 'outer,
 8893            Status::SignedOut | Status::AuthenticationError => {
 8894                return Err(ErrorCode::SignedOut.into());
 8895            }
 8896            Status::UpgradeRequired => return Err(ErrorCode::UpgradeRequired.into()),
 8897            Status::ConnectionError | Status::ConnectionLost | Status::ReconnectionError { .. } => {
 8898                return Err(ErrorCode::Disconnected.into());
 8899            }
 8900        }
 8901    }
 8902
 8903    let joined = cx
 8904        .update(|cx| active_call.join_channel(channel_id, cx))
 8905        .await?;
 8906
 8907    if !joined {
 8908        return anyhow::Ok(true);
 8909    }
 8910
 8911    cx.update(|cx| active_call.room_update_completed(cx)).await;
 8912
 8913    let task = cx.update(|cx| {
 8914        if let Some((project, host)) = active_call.most_active_project(cx) {
 8915            return Some(join_in_room_project(project, host, app_state.clone(), cx));
 8916        }
 8917
 8918        // If you are the first to join a channel, see if you should share your project.
 8919        if !active_call.has_remote_participants(cx)
 8920            && !active_call.local_participant_is_guest(cx)
 8921            && let Some(workspace) = requesting_workspace.as_ref().and_then(|w| w.upgrade())
 8922        {
 8923            let project = workspace.update(cx, |workspace, cx| {
 8924                let project = workspace.project.read(cx);
 8925
 8926                if !active_call.share_on_join(cx) {
 8927                    return None;
 8928                }
 8929
 8930                if (project.is_local() || project.is_via_remote_server())
 8931                    && project.visible_worktrees(cx).any(|tree| {
 8932                        tree.read(cx)
 8933                            .root_entry()
 8934                            .is_some_and(|entry| entry.is_dir())
 8935                    })
 8936                {
 8937                    Some(workspace.project.clone())
 8938                } else {
 8939                    None
 8940                }
 8941            });
 8942            if let Some(project) = project {
 8943                let share_task = active_call.share_project(project, cx);
 8944                return Some(cx.spawn(async move |_cx| -> Result<()> {
 8945                    share_task.await?;
 8946                    Ok(())
 8947                }));
 8948            }
 8949        }
 8950
 8951        None
 8952    });
 8953    if let Some(task) = task {
 8954        task.await?;
 8955        return anyhow::Ok(true);
 8956    }
 8957    anyhow::Ok(false)
 8958}
 8959
 8960pub fn join_channel(
 8961    channel_id: ChannelId,
 8962    app_state: Arc<AppState>,
 8963    requesting_window: Option<WindowHandle<MultiWorkspace>>,
 8964    requesting_workspace: Option<WeakEntity<Workspace>>,
 8965    cx: &mut App,
 8966) -> Task<Result<()>> {
 8967    let active_call = GlobalAnyActiveCall::global(cx).clone();
 8968    cx.spawn(async move |cx| {
 8969        let result = join_channel_internal(
 8970            channel_id,
 8971            &app_state,
 8972            requesting_window,
 8973            requesting_workspace,
 8974            &*active_call.0,
 8975            cx,
 8976        )
 8977        .await;
 8978
 8979        // join channel succeeded, and opened a window
 8980        if matches!(result, Ok(true)) {
 8981            return anyhow::Ok(());
 8982        }
 8983
 8984        // find an existing workspace to focus and show call controls
 8985        let mut active_window = requesting_window.or_else(|| activate_any_workspace_window(cx));
 8986        if active_window.is_none() {
 8987            // no open workspaces, make one to show the error in (blergh)
 8988            let OpenResult {
 8989                window: window_handle,
 8990                ..
 8991            } = cx
 8992                .update(|cx| {
 8993                    Workspace::new_local(
 8994                        vec![],
 8995                        app_state.clone(),
 8996                        requesting_window,
 8997                        None,
 8998                        None,
 8999                        OpenMode::Activate,
 9000                        cx,
 9001                    )
 9002                })
 9003                .await?;
 9004
 9005            window_handle
 9006                .update(cx, |_, window, _cx| {
 9007                    window.activate_window();
 9008                })
 9009                .ok();
 9010
 9011            if result.is_ok() {
 9012                cx.update(|cx| {
 9013                    cx.dispatch_action(&OpenChannelNotes);
 9014                });
 9015            }
 9016
 9017            active_window = Some(window_handle);
 9018        }
 9019
 9020        if let Err(err) = result {
 9021            log::error!("failed to join channel: {}", err);
 9022            if let Some(active_window) = active_window {
 9023                active_window
 9024                    .update(cx, |_, window, cx| {
 9025                        let detail: SharedString = match err.error_code() {
 9026                            ErrorCode::SignedOut => "Please sign in to continue.".into(),
 9027                            ErrorCode::UpgradeRequired => concat!(
 9028                                "Your are running an unsupported version of Zed. ",
 9029                                "Please update to continue."
 9030                            )
 9031                            .into(),
 9032                            ErrorCode::NoSuchChannel => concat!(
 9033                                "No matching channel was found. ",
 9034                                "Please check the link and try again."
 9035                            )
 9036                            .into(),
 9037                            ErrorCode::Forbidden => concat!(
 9038                                "This channel is private, and you do not have access. ",
 9039                                "Please ask someone to add you and try again."
 9040                            )
 9041                            .into(),
 9042                            ErrorCode::Disconnected => {
 9043                                "Please check your internet connection and try again.".into()
 9044                            }
 9045                            _ => format!("{}\n\nPlease try again.", err).into(),
 9046                        };
 9047                        window.prompt(
 9048                            PromptLevel::Critical,
 9049                            "Failed to join channel",
 9050                            Some(&detail),
 9051                            &["Ok"],
 9052                            cx,
 9053                        )
 9054                    })?
 9055                    .await
 9056                    .ok();
 9057            }
 9058        }
 9059
 9060        // return ok, we showed the error to the user.
 9061        anyhow::Ok(())
 9062    })
 9063}
 9064
 9065pub async fn get_any_active_multi_workspace(
 9066    app_state: Arc<AppState>,
 9067    mut cx: AsyncApp,
 9068) -> anyhow::Result<WindowHandle<MultiWorkspace>> {
 9069    // find an existing workspace to focus and show call controls
 9070    let active_window = activate_any_workspace_window(&mut cx);
 9071    if active_window.is_none() {
 9072        cx.update(|cx| {
 9073            Workspace::new_local(
 9074                vec![],
 9075                app_state.clone(),
 9076                None,
 9077                None,
 9078                None,
 9079                OpenMode::Activate,
 9080                cx,
 9081            )
 9082        })
 9083        .await?;
 9084    }
 9085    activate_any_workspace_window(&mut cx).context("could not open zed")
 9086}
 9087
 9088fn activate_any_workspace_window(cx: &mut AsyncApp) -> Option<WindowHandle<MultiWorkspace>> {
 9089    cx.update(|cx| {
 9090        if let Some(workspace_window) = cx
 9091            .active_window()
 9092            .and_then(|window| window.downcast::<MultiWorkspace>())
 9093        {
 9094            return Some(workspace_window);
 9095        }
 9096
 9097        for window in cx.windows() {
 9098            if let Some(workspace_window) = window.downcast::<MultiWorkspace>() {
 9099                workspace_window
 9100                    .update(cx, |_, window, _| window.activate_window())
 9101                    .ok();
 9102                return Some(workspace_window);
 9103            }
 9104        }
 9105        None
 9106    })
 9107}
 9108
 9109pub fn local_workspace_windows(cx: &App) -> Vec<WindowHandle<MultiWorkspace>> {
 9110    workspace_windows_for_location(&SerializedWorkspaceLocation::Local, cx)
 9111}
 9112
 9113pub fn workspace_windows_for_location(
 9114    serialized_location: &SerializedWorkspaceLocation,
 9115    cx: &App,
 9116) -> Vec<WindowHandle<MultiWorkspace>> {
 9117    cx.windows()
 9118        .into_iter()
 9119        .filter_map(|window| window.downcast::<MultiWorkspace>())
 9120        .filter(|multi_workspace| {
 9121            let same_host = |left: &RemoteConnectionOptions, right: &RemoteConnectionOptions| match (left, right) {
 9122                (RemoteConnectionOptions::Ssh(a), RemoteConnectionOptions::Ssh(b)) => {
 9123                    (&a.host, &a.username, &a.port) == (&b.host, &b.username, &b.port)
 9124                }
 9125                (RemoteConnectionOptions::Wsl(a), RemoteConnectionOptions::Wsl(b)) => {
 9126                    // The WSL username is not consistently populated in the workspace location, so ignore it for now.
 9127                    a.distro_name == b.distro_name
 9128                }
 9129                (RemoteConnectionOptions::Docker(a), RemoteConnectionOptions::Docker(b)) => {
 9130                    a.container_id == b.container_id
 9131                }
 9132                #[cfg(any(test, feature = "test-support"))]
 9133                (RemoteConnectionOptions::Mock(a), RemoteConnectionOptions::Mock(b)) => {
 9134                    a.id == b.id
 9135                }
 9136                _ => false,
 9137            };
 9138
 9139            multi_workspace.read(cx).is_ok_and(|multi_workspace| {
 9140                multi_workspace.workspaces().any(|workspace| {
 9141                    match workspace.read(cx).workspace_location(cx) {
 9142                        WorkspaceLocation::Location(location, _) => {
 9143                            match (&location, serialized_location) {
 9144                                (
 9145                                    SerializedWorkspaceLocation::Local,
 9146                                    SerializedWorkspaceLocation::Local,
 9147                                ) => true,
 9148                                (
 9149                                    SerializedWorkspaceLocation::Remote(a),
 9150                                    SerializedWorkspaceLocation::Remote(b),
 9151                                ) => same_host(a, b),
 9152                                _ => false,
 9153                            }
 9154                        }
 9155                        _ => false,
 9156                    }
 9157                })
 9158            })
 9159        })
 9160        .collect()
 9161}
 9162
 9163pub async fn find_existing_workspace(
 9164    abs_paths: &[PathBuf],
 9165    open_options: &OpenOptions,
 9166    location: &SerializedWorkspaceLocation,
 9167    cx: &mut AsyncApp,
 9168) -> (
 9169    Option<(WindowHandle<MultiWorkspace>, Entity<Workspace>)>,
 9170    OpenVisible,
 9171) {
 9172    let mut existing: Option<(WindowHandle<MultiWorkspace>, Entity<Workspace>)> = None;
 9173    let mut open_visible = OpenVisible::All;
 9174    let mut best_match = None;
 9175
 9176    if open_options.open_new_workspace != Some(true) {
 9177        cx.update(|cx| {
 9178            for window in workspace_windows_for_location(location, cx) {
 9179                if let Ok(multi_workspace) = window.read(cx) {
 9180                    for workspace in multi_workspace.workspaces() {
 9181                        let project = workspace.read(cx).project.read(cx);
 9182                        let m = project.visibility_for_paths(
 9183                            abs_paths,
 9184                            open_options.open_new_workspace == None,
 9185                            cx,
 9186                        );
 9187                        if m > best_match {
 9188                            existing = Some((window, workspace.clone()));
 9189                            best_match = m;
 9190                        } else if best_match.is_none()
 9191                            && open_options.open_new_workspace == Some(false)
 9192                        {
 9193                            existing = Some((window, workspace.clone()))
 9194                        }
 9195                    }
 9196                }
 9197            }
 9198        });
 9199
 9200        let all_paths_are_files = existing
 9201            .as_ref()
 9202            .and_then(|(_, target_workspace)| {
 9203                cx.update(|cx| {
 9204                    let workspace = target_workspace.read(cx);
 9205                    let project = workspace.project.read(cx);
 9206                    let path_style = workspace.path_style(cx);
 9207                    Some(!abs_paths.iter().any(|path| {
 9208                        let path = util::paths::SanitizedPath::new(path);
 9209                        project.worktrees(cx).any(|worktree| {
 9210                            let worktree = worktree.read(cx);
 9211                            let abs_path = worktree.abs_path();
 9212                            path_style
 9213                                .strip_prefix(path.as_ref(), abs_path.as_ref())
 9214                                .and_then(|rel| worktree.entry_for_path(&rel))
 9215                                .is_some_and(|e| e.is_dir())
 9216                        })
 9217                    }))
 9218                })
 9219            })
 9220            .unwrap_or(false);
 9221
 9222        if open_options.open_new_workspace.is_none()
 9223            && existing.is_some()
 9224            && open_options.wait
 9225            && all_paths_are_files
 9226        {
 9227            cx.update(|cx| {
 9228                let windows = workspace_windows_for_location(location, cx);
 9229                let window = cx
 9230                    .active_window()
 9231                    .and_then(|window| window.downcast::<MultiWorkspace>())
 9232                    .filter(|window| windows.contains(window))
 9233                    .or_else(|| windows.into_iter().next());
 9234                if let Some(window) = window {
 9235                    if let Ok(multi_workspace) = window.read(cx) {
 9236                        let active_workspace = multi_workspace.workspace().clone();
 9237                        existing = Some((window, active_workspace));
 9238                        open_visible = OpenVisible::None;
 9239                    }
 9240                }
 9241            });
 9242        }
 9243    }
 9244    (existing, open_visible)
 9245}
 9246
 9247#[derive(Default, Clone)]
 9248pub struct OpenOptions {
 9249    pub visible: Option<OpenVisible>,
 9250    pub focus: Option<bool>,
 9251    pub open_new_workspace: Option<bool>,
 9252    pub wait: bool,
 9253    pub requesting_window: Option<WindowHandle<MultiWorkspace>>,
 9254    pub open_mode: OpenMode,
 9255    pub env: Option<HashMap<String, String>>,
 9256    pub open_in_dev_container: bool,
 9257}
 9258
 9259/// The result of opening a workspace via [`open_paths`], [`Workspace::new_local`],
 9260/// or [`Workspace::open_workspace_for_paths`].
 9261pub struct OpenResult {
 9262    pub window: WindowHandle<MultiWorkspace>,
 9263    pub workspace: Entity<Workspace>,
 9264    pub opened_items: Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 9265}
 9266
 9267/// Opens a workspace by its database ID, used for restoring empty workspaces with unsaved content.
 9268pub fn open_workspace_by_id(
 9269    workspace_id: WorkspaceId,
 9270    app_state: Arc<AppState>,
 9271    requesting_window: Option<WindowHandle<MultiWorkspace>>,
 9272    cx: &mut App,
 9273) -> Task<anyhow::Result<WindowHandle<MultiWorkspace>>> {
 9274    let project_handle = Project::local(
 9275        app_state.client.clone(),
 9276        app_state.node_runtime.clone(),
 9277        app_state.user_store.clone(),
 9278        app_state.languages.clone(),
 9279        app_state.fs.clone(),
 9280        None,
 9281        project::LocalProjectFlags {
 9282            init_worktree_trust: true,
 9283            ..project::LocalProjectFlags::default()
 9284        },
 9285        cx,
 9286    );
 9287
 9288    let db = WorkspaceDb::global(cx);
 9289    let kvp = db::kvp::KeyValueStore::global(cx);
 9290    cx.spawn(async move |cx| {
 9291        let serialized_workspace = db
 9292            .workspace_for_id(workspace_id)
 9293            .with_context(|| format!("Workspace {workspace_id:?} not found"))?;
 9294
 9295        let centered_layout = serialized_workspace.centered_layout;
 9296
 9297        let (window, workspace) = if let Some(window) = requesting_window {
 9298            let workspace = window.update(cx, |multi_workspace, window, cx| {
 9299                let workspace = cx.new(|cx| {
 9300                    let mut workspace = Workspace::new(
 9301                        Some(workspace_id),
 9302                        project_handle.clone(),
 9303                        app_state.clone(),
 9304                        window,
 9305                        cx,
 9306                    );
 9307                    workspace.centered_layout = centered_layout;
 9308                    workspace
 9309                });
 9310                multi_workspace.add(workspace.clone(), &*window, cx);
 9311                workspace
 9312            })?;
 9313            (window, workspace)
 9314        } else {
 9315            let window_bounds_override = window_bounds_env_override();
 9316
 9317            let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 9318                (Some(WindowBounds::Windowed(bounds)), None)
 9319            } else if let Some(display) = serialized_workspace.display
 9320                && let Some(bounds) = serialized_workspace.window_bounds.as_ref()
 9321            {
 9322                (Some(bounds.0), Some(display))
 9323            } else if let Some((display, bounds)) = persistence::read_default_window_bounds(&kvp) {
 9324                (Some(bounds), Some(display))
 9325            } else {
 9326                (None, None)
 9327            };
 9328
 9329            let options = cx.update(|cx| {
 9330                let mut options = (app_state.build_window_options)(display, cx);
 9331                options.window_bounds = window_bounds;
 9332                options
 9333            });
 9334
 9335            let window = cx.open_window(options, {
 9336                let app_state = app_state.clone();
 9337                let project_handle = project_handle.clone();
 9338                move |window, cx| {
 9339                    let workspace = cx.new(|cx| {
 9340                        let mut workspace = Workspace::new(
 9341                            Some(workspace_id),
 9342                            project_handle,
 9343                            app_state,
 9344                            window,
 9345                            cx,
 9346                        );
 9347                        workspace.centered_layout = centered_layout;
 9348                        workspace
 9349                    });
 9350                    cx.new(|cx| MultiWorkspace::new(workspace, window, cx))
 9351                }
 9352            })?;
 9353
 9354            let workspace = window.update(cx, |multi_workspace: &mut MultiWorkspace, _, _cx| {
 9355                multi_workspace.workspace().clone()
 9356            })?;
 9357
 9358            (window, workspace)
 9359        };
 9360
 9361        notify_if_database_failed(window, cx);
 9362
 9363        // Restore items from the serialized workspace
 9364        window
 9365            .update(cx, |_, window, cx| {
 9366                workspace.update(cx, |_workspace, cx| {
 9367                    open_items(Some(serialized_workspace), vec![], window, cx)
 9368                })
 9369            })?
 9370            .await?;
 9371
 9372        window.update(cx, |_, window, cx| {
 9373            workspace.update(cx, |workspace, cx| {
 9374                workspace.serialize_workspace(window, cx);
 9375            });
 9376        })?;
 9377
 9378        Ok(window)
 9379    })
 9380}
 9381
 9382#[allow(clippy::type_complexity)]
 9383pub fn open_paths(
 9384    abs_paths: &[PathBuf],
 9385    app_state: Arc<AppState>,
 9386    mut open_options: OpenOptions,
 9387    cx: &mut App,
 9388) -> Task<anyhow::Result<OpenResult>> {
 9389    let abs_paths = abs_paths.to_vec();
 9390    #[cfg(target_os = "windows")]
 9391    let wsl_path = abs_paths
 9392        .iter()
 9393        .find_map(|p| util::paths::WslPath::from_path(p));
 9394
 9395    cx.spawn(async move |cx| {
 9396        let (mut existing, mut open_visible) = find_existing_workspace(
 9397            &abs_paths,
 9398            &open_options,
 9399            &SerializedWorkspaceLocation::Local,
 9400            cx,
 9401        )
 9402        .await;
 9403
 9404        // Fallback: if no workspace contains the paths and all paths are files,
 9405        // prefer an existing local workspace window (active window first).
 9406        if open_options.open_new_workspace.is_none() && existing.is_none() {
 9407            let all_paths = abs_paths.iter().map(|path| app_state.fs.metadata(path));
 9408            let all_metadatas = futures::future::join_all(all_paths)
 9409                .await
 9410                .into_iter()
 9411                .filter_map(|result| result.ok().flatten());
 9412
 9413            if all_metadatas.into_iter().all(|file| !file.is_dir) {
 9414                cx.update(|cx| {
 9415                    let windows = workspace_windows_for_location(
 9416                        &SerializedWorkspaceLocation::Local,
 9417                        cx,
 9418                    );
 9419                    let window = cx
 9420                        .active_window()
 9421                        .and_then(|window| window.downcast::<MultiWorkspace>())
 9422                        .filter(|window| windows.contains(window))
 9423                        .or_else(|| windows.into_iter().next());
 9424                    if let Some(window) = window {
 9425                        if let Ok(multi_workspace) = window.read(cx) {
 9426                            let active_workspace = multi_workspace.workspace().clone();
 9427                            existing = Some((window, active_workspace));
 9428                            open_visible = OpenVisible::None;
 9429                        }
 9430                    }
 9431                });
 9432            }
 9433        }
 9434
 9435        // Fallback for directories: when no flag is specified and no existing
 9436        // workspace matched, add the directory as a new workspace in the
 9437        // active window's MultiWorkspace (instead of opening a new window).
 9438        if open_options.open_new_workspace.is_none() && existing.is_none() {
 9439            let target_window = cx.update(|cx| {
 9440                let windows = workspace_windows_for_location(
 9441                    &SerializedWorkspaceLocation::Local,
 9442                    cx,
 9443                );
 9444                let window = cx
 9445                    .active_window()
 9446                    .and_then(|window| window.downcast::<MultiWorkspace>())
 9447                    .filter(|window| windows.contains(window))
 9448                    .or_else(|| windows.into_iter().next());
 9449                window.filter(|window| {
 9450                    window.read(cx).is_ok_and(|mw| mw.multi_workspace_enabled(cx))
 9451                })
 9452            });
 9453
 9454            if let Some(window) = target_window {
 9455                open_options.requesting_window = Some(window);
 9456                window
 9457                    .update(cx, |multi_workspace, _, cx| {
 9458                        multi_workspace.open_sidebar(cx);
 9459                    })
 9460                    .log_err();
 9461            }
 9462        }
 9463
 9464        let open_in_dev_container = open_options.open_in_dev_container;
 9465
 9466        let result = if let Some((existing, target_workspace)) = existing {
 9467            let open_task = existing
 9468                .update(cx, |multi_workspace, window, cx| {
 9469                    window.activate_window();
 9470                    multi_workspace.activate(target_workspace.clone(), window, cx);
 9471                    target_workspace.update(cx, |workspace, cx| {
 9472                        if open_in_dev_container {
 9473                            workspace.set_open_in_dev_container(true);
 9474                        }
 9475                        workspace.open_paths(
 9476                            abs_paths,
 9477                            OpenOptions {
 9478                                visible: Some(open_visible),
 9479                                ..Default::default()
 9480                            },
 9481                            None,
 9482                            window,
 9483                            cx,
 9484                        )
 9485                    })
 9486                })?
 9487                .await;
 9488
 9489            _ = existing.update(cx, |multi_workspace, _, cx| {
 9490                let workspace = multi_workspace.workspace().clone();
 9491                workspace.update(cx, |workspace, cx| {
 9492                    for item in open_task.iter().flatten() {
 9493                        if let Err(e) = item {
 9494                            workspace.show_error(&e, cx);
 9495                        }
 9496                    }
 9497                });
 9498            });
 9499
 9500            Ok(OpenResult { window: existing, workspace: target_workspace, opened_items: open_task })
 9501        } else {
 9502            let init = if open_in_dev_container {
 9503                Some(Box::new(|workspace: &mut Workspace, _window: &mut Window, _cx: &mut Context<Workspace>| {
 9504                    workspace.set_open_in_dev_container(true);
 9505                }) as Box<dyn FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send>)
 9506            } else {
 9507                None
 9508            };
 9509            let result = cx
 9510                .update(move |cx| {
 9511                    Workspace::new_local(
 9512                        abs_paths,
 9513                        app_state.clone(),
 9514                        open_options.requesting_window,
 9515                        open_options.env,
 9516                        init,
 9517                        open_options.open_mode,
 9518                        cx,
 9519                    )
 9520                })
 9521                .await;
 9522
 9523            if let Ok(ref result) = result {
 9524                result.window
 9525                    .update(cx, |_, window, _cx| {
 9526                        window.activate_window();
 9527                    })
 9528                    .log_err();
 9529            }
 9530
 9531            result
 9532        };
 9533
 9534        #[cfg(target_os = "windows")]
 9535        if let Some(util::paths::WslPath{distro, path}) = wsl_path
 9536            && let Ok(ref result) = result
 9537        {
 9538            result.window
 9539                .update(cx, move |multi_workspace, _window, cx| {
 9540                    struct OpenInWsl;
 9541                    let workspace = multi_workspace.workspace().clone();
 9542                    workspace.update(cx, |workspace, cx| {
 9543                        workspace.show_notification(NotificationId::unique::<OpenInWsl>(), cx, move |cx| {
 9544                            let display_path = util::markdown::MarkdownInlineCode(&path.to_string_lossy());
 9545                            let msg = format!("{display_path} is inside a WSL filesystem, some features may not work unless you open it with WSL remote");
 9546                            cx.new(move |cx| {
 9547                                MessageNotification::new(msg, cx)
 9548                                    .primary_message("Open in WSL")
 9549                                    .primary_icon(IconName::FolderOpen)
 9550                                    .primary_on_click(move |window, cx| {
 9551                                        window.dispatch_action(Box::new(remote::OpenWslPath {
 9552                                                distro: remote::WslConnectionOptions {
 9553                                                        distro_name: distro.clone(),
 9554                                                    user: None,
 9555                                                },
 9556                                                paths: vec![path.clone().into()],
 9557                                            }), cx)
 9558                                    })
 9559                            })
 9560                        });
 9561                    });
 9562                })
 9563                .unwrap();
 9564        };
 9565        result
 9566    })
 9567}
 9568
 9569pub fn open_new(
 9570    open_options: OpenOptions,
 9571    app_state: Arc<AppState>,
 9572    cx: &mut App,
 9573    init: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + 'static + Send,
 9574) -> Task<anyhow::Result<()>> {
 9575    let addition = open_options.open_mode;
 9576    let task = Workspace::new_local(
 9577        Vec::new(),
 9578        app_state,
 9579        open_options.requesting_window,
 9580        open_options.env,
 9581        Some(Box::new(init)),
 9582        addition,
 9583        cx,
 9584    );
 9585    cx.spawn(async move |cx| {
 9586        let OpenResult { window, .. } = task.await?;
 9587        window
 9588            .update(cx, |_, window, _cx| {
 9589                window.activate_window();
 9590            })
 9591            .ok();
 9592        Ok(())
 9593    })
 9594}
 9595
 9596pub fn create_and_open_local_file(
 9597    path: &'static Path,
 9598    window: &mut Window,
 9599    cx: &mut Context<Workspace>,
 9600    default_content: impl 'static + Send + FnOnce() -> Rope,
 9601) -> Task<Result<Box<dyn ItemHandle>>> {
 9602    cx.spawn_in(window, async move |workspace, cx| {
 9603        let fs = workspace.read_with(cx, |workspace, _| workspace.app_state().fs.clone())?;
 9604        if !fs.is_file(path).await {
 9605            fs.create_file(path, Default::default()).await?;
 9606            fs.save(path, &default_content(), Default::default())
 9607                .await?;
 9608        }
 9609
 9610        workspace
 9611            .update_in(cx, |workspace, window, cx| {
 9612                workspace.with_local_or_wsl_workspace(window, cx, |workspace, window, cx| {
 9613                    let path = workspace
 9614                        .project
 9615                        .read_with(cx, |project, cx| project.try_windows_path_to_wsl(path, cx));
 9616                    cx.spawn_in(window, async move |workspace, cx| {
 9617                        let path = path.await?;
 9618
 9619                        let path = fs.canonicalize(&path).await.unwrap_or(path);
 9620
 9621                        let mut items = workspace
 9622                            .update_in(cx, |workspace, window, cx| {
 9623                                workspace.open_paths(
 9624                                    vec![path.to_path_buf()],
 9625                                    OpenOptions {
 9626                                        visible: Some(OpenVisible::None),
 9627                                        ..Default::default()
 9628                                    },
 9629                                    None,
 9630                                    window,
 9631                                    cx,
 9632                                )
 9633                            })?
 9634                            .await;
 9635                        let item = items.pop().flatten();
 9636                        item.with_context(|| format!("path {path:?} is not a file"))?
 9637                    })
 9638                })
 9639            })?
 9640            .await?
 9641            .await
 9642    })
 9643}
 9644
 9645pub fn open_remote_project_with_new_connection(
 9646    window: WindowHandle<MultiWorkspace>,
 9647    remote_connection: Arc<dyn RemoteConnection>,
 9648    cancel_rx: oneshot::Receiver<()>,
 9649    delegate: Arc<dyn RemoteClientDelegate>,
 9650    app_state: Arc<AppState>,
 9651    paths: Vec<PathBuf>,
 9652    cx: &mut App,
 9653) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 9654    cx.spawn(async move |cx| {
 9655        let (workspace_id, serialized_workspace) =
 9656            deserialize_remote_project(remote_connection.connection_options(), paths.clone(), cx)
 9657                .await?;
 9658
 9659        let session = match cx
 9660            .update(|cx| {
 9661                remote::RemoteClient::new(
 9662                    ConnectionIdentifier::Workspace(workspace_id.0),
 9663                    remote_connection,
 9664                    cancel_rx,
 9665                    delegate,
 9666                    cx,
 9667                )
 9668            })
 9669            .await?
 9670        {
 9671            Some(result) => result,
 9672            None => return Ok(Vec::new()),
 9673        };
 9674
 9675        let project = cx.update(|cx| {
 9676            project::Project::remote(
 9677                session,
 9678                app_state.client.clone(),
 9679                app_state.node_runtime.clone(),
 9680                app_state.user_store.clone(),
 9681                app_state.languages.clone(),
 9682                app_state.fs.clone(),
 9683                true,
 9684                cx,
 9685            )
 9686        });
 9687
 9688        open_remote_project_inner(
 9689            project,
 9690            paths,
 9691            workspace_id,
 9692            serialized_workspace,
 9693            app_state,
 9694            window,
 9695            cx,
 9696        )
 9697        .await
 9698    })
 9699}
 9700
 9701pub fn open_remote_project_with_existing_connection(
 9702    connection_options: RemoteConnectionOptions,
 9703    project: Entity<Project>,
 9704    paths: Vec<PathBuf>,
 9705    app_state: Arc<AppState>,
 9706    window: WindowHandle<MultiWorkspace>,
 9707    cx: &mut AsyncApp,
 9708) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 9709    cx.spawn(async move |cx| {
 9710        let (workspace_id, serialized_workspace) =
 9711            deserialize_remote_project(connection_options.clone(), paths.clone(), cx).await?;
 9712
 9713        open_remote_project_inner(
 9714            project,
 9715            paths,
 9716            workspace_id,
 9717            serialized_workspace,
 9718            app_state,
 9719            window,
 9720            cx,
 9721        )
 9722        .await
 9723    })
 9724}
 9725
 9726async fn open_remote_project_inner(
 9727    project: Entity<Project>,
 9728    paths: Vec<PathBuf>,
 9729    workspace_id: WorkspaceId,
 9730    serialized_workspace: Option<SerializedWorkspace>,
 9731    app_state: Arc<AppState>,
 9732    window: WindowHandle<MultiWorkspace>,
 9733    cx: &mut AsyncApp,
 9734) -> Result<Vec<Option<Box<dyn ItemHandle>>>> {
 9735    let db = cx.update(|cx| WorkspaceDb::global(cx));
 9736    let toolchains = db.toolchains(workspace_id).await?;
 9737    for (toolchain, worktree_path, path) in toolchains {
 9738        project
 9739            .update(cx, |this, cx| {
 9740                let Some(worktree_id) =
 9741                    this.find_worktree(&worktree_path, cx)
 9742                        .and_then(|(worktree, rel_path)| {
 9743                            if rel_path.is_empty() {
 9744                                Some(worktree.read(cx).id())
 9745                            } else {
 9746                                None
 9747                            }
 9748                        })
 9749                else {
 9750                    return Task::ready(None);
 9751                };
 9752
 9753                this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 9754            })
 9755            .await;
 9756    }
 9757    let mut project_paths_to_open = vec![];
 9758    let mut project_path_errors = vec![];
 9759
 9760    for path in paths {
 9761        let result = cx
 9762            .update(|cx| Workspace::project_path_for_path(project.clone(), &path, true, cx))
 9763            .await;
 9764        match result {
 9765            Ok((_, project_path)) => {
 9766                project_paths_to_open.push((path.clone(), Some(project_path)));
 9767            }
 9768            Err(error) => {
 9769                project_path_errors.push(error);
 9770            }
 9771        };
 9772    }
 9773
 9774    if project_paths_to_open.is_empty() {
 9775        return Err(project_path_errors.pop().context("no paths given")?);
 9776    }
 9777
 9778    let workspace = window.update(cx, |multi_workspace, window, cx| {
 9779        telemetry::event!("SSH Project Opened");
 9780
 9781        let new_workspace = cx.new(|cx| {
 9782            let mut workspace =
 9783                Workspace::new(Some(workspace_id), project, app_state.clone(), window, cx);
 9784            workspace.update_history(cx);
 9785
 9786            if let Some(ref serialized) = serialized_workspace {
 9787                workspace.centered_layout = serialized.centered_layout;
 9788            }
 9789
 9790            workspace
 9791        });
 9792
 9793        multi_workspace.activate(new_workspace.clone(), window, cx);
 9794        new_workspace
 9795    })?;
 9796
 9797    let items = window
 9798        .update(cx, |_, window, cx| {
 9799            window.activate_window();
 9800            workspace.update(cx, |_workspace, cx| {
 9801                open_items(serialized_workspace, project_paths_to_open, window, cx)
 9802            })
 9803        })?
 9804        .await?;
 9805
 9806    workspace.update(cx, |workspace, cx| {
 9807        for error in project_path_errors {
 9808            if error.error_code() == proto::ErrorCode::DevServerProjectPathDoesNotExist {
 9809                if let Some(path) = error.error_tag("path") {
 9810                    workspace.show_error(&anyhow!("'{path}' does not exist"), cx)
 9811                }
 9812            } else {
 9813                workspace.show_error(&error, cx)
 9814            }
 9815        }
 9816    });
 9817
 9818    Ok(items.into_iter().map(|item| item?.ok()).collect())
 9819}
 9820
 9821fn deserialize_remote_project(
 9822    connection_options: RemoteConnectionOptions,
 9823    paths: Vec<PathBuf>,
 9824    cx: &AsyncApp,
 9825) -> Task<Result<(WorkspaceId, Option<SerializedWorkspace>)>> {
 9826    let db = cx.update(|cx| WorkspaceDb::global(cx));
 9827    cx.background_spawn(async move {
 9828        let remote_connection_id = db
 9829            .get_or_create_remote_connection(connection_options)
 9830            .await?;
 9831
 9832        let serialized_workspace = db.remote_workspace_for_roots(&paths, remote_connection_id);
 9833
 9834        let workspace_id = if let Some(workspace_id) =
 9835            serialized_workspace.as_ref().map(|workspace| workspace.id)
 9836        {
 9837            workspace_id
 9838        } else {
 9839            db.next_id().await?
 9840        };
 9841
 9842        Ok((workspace_id, serialized_workspace))
 9843    })
 9844}
 9845
 9846pub fn join_in_room_project(
 9847    project_id: u64,
 9848    follow_user_id: u64,
 9849    app_state: Arc<AppState>,
 9850    cx: &mut App,
 9851) -> Task<Result<()>> {
 9852    let windows = cx.windows();
 9853    cx.spawn(async move |cx| {
 9854        let existing_window_and_workspace: Option<(
 9855            WindowHandle<MultiWorkspace>,
 9856            Entity<Workspace>,
 9857        )> = windows.into_iter().find_map(|window_handle| {
 9858            window_handle
 9859                .downcast::<MultiWorkspace>()
 9860                .and_then(|window_handle| {
 9861                    window_handle
 9862                        .update(cx, |multi_workspace, _window, cx| {
 9863                            for workspace in multi_workspace.workspaces() {
 9864                                if workspace.read(cx).project().read(cx).remote_id()
 9865                                    == Some(project_id)
 9866                                {
 9867                                    return Some((window_handle, workspace.clone()));
 9868                                }
 9869                            }
 9870                            None
 9871                        })
 9872                        .unwrap_or(None)
 9873                })
 9874        });
 9875
 9876        let multi_workspace_window = if let Some((existing_window, target_workspace)) =
 9877            existing_window_and_workspace
 9878        {
 9879            existing_window
 9880                .update(cx, |multi_workspace, window, cx| {
 9881                    multi_workspace.activate(target_workspace, window, cx);
 9882                })
 9883                .ok();
 9884            existing_window
 9885        } else {
 9886            let active_call = cx.update(|cx| GlobalAnyActiveCall::global(cx).clone());
 9887            let project = cx
 9888                .update(|cx| {
 9889                    active_call.0.join_project(
 9890                        project_id,
 9891                        app_state.languages.clone(),
 9892                        app_state.fs.clone(),
 9893                        cx,
 9894                    )
 9895                })
 9896                .await?;
 9897
 9898            let window_bounds_override = window_bounds_env_override();
 9899            cx.update(|cx| {
 9900                let mut options = (app_state.build_window_options)(None, cx);
 9901                options.window_bounds = window_bounds_override.map(WindowBounds::Windowed);
 9902                cx.open_window(options, |window, cx| {
 9903                    let workspace = cx.new(|cx| {
 9904                        Workspace::new(Default::default(), project, app_state.clone(), window, cx)
 9905                    });
 9906                    cx.new(|cx| MultiWorkspace::new(workspace, window, cx))
 9907                })
 9908            })?
 9909        };
 9910
 9911        multi_workspace_window.update(cx, |multi_workspace, window, cx| {
 9912            cx.activate(true);
 9913            window.activate_window();
 9914
 9915            // We set the active workspace above, so this is the correct workspace.
 9916            let workspace = multi_workspace.workspace().clone();
 9917            workspace.update(cx, |workspace, cx| {
 9918                let follow_peer_id = GlobalAnyActiveCall::try_global(cx)
 9919                    .and_then(|call| call.0.peer_id_for_user_in_room(follow_user_id, cx))
 9920                    .or_else(|| {
 9921                        // If we couldn't follow the given user, follow the host instead.
 9922                        let collaborator = workspace
 9923                            .project()
 9924                            .read(cx)
 9925                            .collaborators()
 9926                            .values()
 9927                            .find(|collaborator| collaborator.is_host)?;
 9928                        Some(collaborator.peer_id)
 9929                    });
 9930
 9931                if let Some(follow_peer_id) = follow_peer_id {
 9932                    workspace.follow(follow_peer_id, window, cx);
 9933                }
 9934            });
 9935        })?;
 9936
 9937        anyhow::Ok(())
 9938    })
 9939}
 9940
 9941pub fn reload(cx: &mut App) {
 9942    let should_confirm = WorkspaceSettings::get_global(cx).confirm_quit;
 9943    let mut workspace_windows = cx
 9944        .windows()
 9945        .into_iter()
 9946        .filter_map(|window| window.downcast::<MultiWorkspace>())
 9947        .collect::<Vec<_>>();
 9948
 9949    // If multiple windows have unsaved changes, and need a save prompt,
 9950    // prompt in the active window before switching to a different window.
 9951    workspace_windows.sort_by_key(|window| window.is_active(cx) == Some(false));
 9952
 9953    let mut prompt = None;
 9954    if let (true, Some(window)) = (should_confirm, workspace_windows.first()) {
 9955        prompt = window
 9956            .update(cx, |_, window, cx| {
 9957                window.prompt(
 9958                    PromptLevel::Info,
 9959                    "Are you sure you want to restart?",
 9960                    None,
 9961                    &["Restart", "Cancel"],
 9962                    cx,
 9963                )
 9964            })
 9965            .ok();
 9966    }
 9967
 9968    cx.spawn(async move |cx| {
 9969        if let Some(prompt) = prompt {
 9970            let answer = prompt.await?;
 9971            if answer != 0 {
 9972                return anyhow::Ok(());
 9973            }
 9974        }
 9975
 9976        // If the user cancels any save prompt, then keep the app open.
 9977        for window in workspace_windows {
 9978            if let Ok(should_close) = window.update(cx, |multi_workspace, window, cx| {
 9979                let workspace = multi_workspace.workspace().clone();
 9980                workspace.update(cx, |workspace, cx| {
 9981                    workspace.prepare_to_close(CloseIntent::Quit, window, cx)
 9982                })
 9983            }) && !should_close.await?
 9984            {
 9985                return anyhow::Ok(());
 9986            }
 9987        }
 9988        cx.update(|cx| cx.restart());
 9989        anyhow::Ok(())
 9990    })
 9991    .detach_and_log_err(cx);
 9992}
 9993
 9994fn parse_pixel_position_env_var(value: &str) -> Option<Point<Pixels>> {
 9995    let mut parts = value.split(',');
 9996    let x: usize = parts.next()?.parse().ok()?;
 9997    let y: usize = parts.next()?.parse().ok()?;
 9998    Some(point(px(x as f32), px(y as f32)))
 9999}
10000
10001fn parse_pixel_size_env_var(value: &str) -> Option<Size<Pixels>> {
10002    let mut parts = value.split(',');
10003    let width: usize = parts.next()?.parse().ok()?;
10004    let height: usize = parts.next()?.parse().ok()?;
10005    Some(size(px(width as f32), px(height as f32)))
10006}
10007
10008/// Add client-side decorations (rounded corners, shadows, resize handling) when
10009/// appropriate.
10010///
10011/// The `border_radius_tiling` parameter allows overriding which corners get
10012/// rounded, independently of the actual window tiling state. This is used
10013/// specifically for the workspace switcher sidebar: when the sidebar is open,
10014/// we want square corners on the left (so the sidebar appears flush with the
10015/// window edge) but we still need the shadow padding for proper visual
10016/// appearance. Unlike actual window tiling, this only affects border radius -
10017/// not padding or shadows.
10018pub fn client_side_decorations(
10019    element: impl IntoElement,
10020    window: &mut Window,
10021    cx: &mut App,
10022    border_radius_tiling: Tiling,
10023) -> Stateful<Div> {
10024    const BORDER_SIZE: Pixels = px(1.0);
10025    let decorations = window.window_decorations();
10026    let tiling = match decorations {
10027        Decorations::Server => Tiling::default(),
10028        Decorations::Client { tiling } => tiling,
10029    };
10030
10031    match decorations {
10032        Decorations::Client { .. } => window.set_client_inset(theme::CLIENT_SIDE_DECORATION_SHADOW),
10033        Decorations::Server => window.set_client_inset(px(0.0)),
10034    }
10035
10036    struct GlobalResizeEdge(ResizeEdge);
10037    impl Global for GlobalResizeEdge {}
10038
10039    div()
10040        .id("window-backdrop")
10041        .bg(transparent_black())
10042        .map(|div| match decorations {
10043            Decorations::Server => div,
10044            Decorations::Client { .. } => div
10045                .when(
10046                    !(tiling.top
10047                        || tiling.right
10048                        || border_radius_tiling.top
10049                        || border_radius_tiling.right),
10050                    |div| div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING),
10051                )
10052                .when(
10053                    !(tiling.top
10054                        || tiling.left
10055                        || border_radius_tiling.top
10056                        || border_radius_tiling.left),
10057                    |div| div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
10058                )
10059                .when(
10060                    !(tiling.bottom
10061                        || tiling.right
10062                        || border_radius_tiling.bottom
10063                        || border_radius_tiling.right),
10064                    |div| div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING),
10065                )
10066                .when(
10067                    !(tiling.bottom
10068                        || tiling.left
10069                        || border_radius_tiling.bottom
10070                        || border_radius_tiling.left),
10071                    |div| div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
10072                )
10073                .when(!tiling.top, |div| {
10074                    div.pt(theme::CLIENT_SIDE_DECORATION_SHADOW)
10075                })
10076                .when(!tiling.bottom, |div| {
10077                    div.pb(theme::CLIENT_SIDE_DECORATION_SHADOW)
10078                })
10079                .when(!tiling.left, |div| {
10080                    div.pl(theme::CLIENT_SIDE_DECORATION_SHADOW)
10081                })
10082                .when(!tiling.right, |div| {
10083                    div.pr(theme::CLIENT_SIDE_DECORATION_SHADOW)
10084                })
10085                .on_mouse_move(move |e, window, cx| {
10086                    let size = window.window_bounds().get_bounds().size;
10087                    let pos = e.position;
10088
10089                    let new_edge =
10090                        resize_edge(pos, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling);
10091
10092                    let edge = cx.try_global::<GlobalResizeEdge>();
10093                    if new_edge != edge.map(|edge| edge.0) {
10094                        window
10095                            .window_handle()
10096                            .update(cx, |workspace, _, cx| {
10097                                cx.notify(workspace.entity_id());
10098                            })
10099                            .ok();
10100                    }
10101                })
10102                .on_mouse_down(MouseButton::Left, move |e, window, _| {
10103                    let size = window.window_bounds().get_bounds().size;
10104                    let pos = e.position;
10105
10106                    let edge = match resize_edge(
10107                        pos,
10108                        theme::CLIENT_SIDE_DECORATION_SHADOW,
10109                        size,
10110                        tiling,
10111                    ) {
10112                        Some(value) => value,
10113                        None => return,
10114                    };
10115
10116                    window.start_window_resize(edge);
10117                }),
10118        })
10119        .size_full()
10120        .child(
10121            div()
10122                .cursor(CursorStyle::Arrow)
10123                .map(|div| match decorations {
10124                    Decorations::Server => div,
10125                    Decorations::Client { .. } => div
10126                        .border_color(cx.theme().colors().border)
10127                        .when(
10128                            !(tiling.top
10129                                || tiling.right
10130                                || border_radius_tiling.top
10131                                || border_radius_tiling.right),
10132                            |div| div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING),
10133                        )
10134                        .when(
10135                            !(tiling.top
10136                                || tiling.left
10137                                || border_radius_tiling.top
10138                                || border_radius_tiling.left),
10139                            |div| div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
10140                        )
10141                        .when(
10142                            !(tiling.bottom
10143                                || tiling.right
10144                                || border_radius_tiling.bottom
10145                                || border_radius_tiling.right),
10146                            |div| div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING),
10147                        )
10148                        .when(
10149                            !(tiling.bottom
10150                                || tiling.left
10151                                || border_radius_tiling.bottom
10152                                || border_radius_tiling.left),
10153                            |div| div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
10154                        )
10155                        .when(!tiling.top, |div| div.border_t(BORDER_SIZE))
10156                        .when(!tiling.bottom, |div| div.border_b(BORDER_SIZE))
10157                        .when(!tiling.left, |div| div.border_l(BORDER_SIZE))
10158                        .when(!tiling.right, |div| div.border_r(BORDER_SIZE))
10159                        .when(!tiling.is_tiled(), |div| {
10160                            div.shadow(vec![gpui::BoxShadow {
10161                                color: Hsla {
10162                                    h: 0.,
10163                                    s: 0.,
10164                                    l: 0.,
10165                                    a: 0.4,
10166                                },
10167                                blur_radius: theme::CLIENT_SIDE_DECORATION_SHADOW / 2.,
10168                                spread_radius: px(0.),
10169                                offset: point(px(0.0), px(0.0)),
10170                            }])
10171                        }),
10172                })
10173                .on_mouse_move(|_e, _, cx| {
10174                    cx.stop_propagation();
10175                })
10176                .size_full()
10177                .child(element),
10178        )
10179        .map(|div| match decorations {
10180            Decorations::Server => div,
10181            Decorations::Client { tiling, .. } => div.child(
10182                canvas(
10183                    |_bounds, window, _| {
10184                        window.insert_hitbox(
10185                            Bounds::new(
10186                                point(px(0.0), px(0.0)),
10187                                window.window_bounds().get_bounds().size,
10188                            ),
10189                            HitboxBehavior::Normal,
10190                        )
10191                    },
10192                    move |_bounds, hitbox, window, cx| {
10193                        let mouse = window.mouse_position();
10194                        let size = window.window_bounds().get_bounds().size;
10195                        let Some(edge) =
10196                            resize_edge(mouse, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling)
10197                        else {
10198                            return;
10199                        };
10200                        cx.set_global(GlobalResizeEdge(edge));
10201                        window.set_cursor_style(
10202                            match edge {
10203                                ResizeEdge::Top | ResizeEdge::Bottom => CursorStyle::ResizeUpDown,
10204                                ResizeEdge::Left | ResizeEdge::Right => {
10205                                    CursorStyle::ResizeLeftRight
10206                                }
10207                                ResizeEdge::TopLeft | ResizeEdge::BottomRight => {
10208                                    CursorStyle::ResizeUpLeftDownRight
10209                                }
10210                                ResizeEdge::TopRight | ResizeEdge::BottomLeft => {
10211                                    CursorStyle::ResizeUpRightDownLeft
10212                                }
10213                            },
10214                            &hitbox,
10215                        );
10216                    },
10217                )
10218                .size_full()
10219                .absolute(),
10220            ),
10221        })
10222}
10223
10224fn resize_edge(
10225    pos: Point<Pixels>,
10226    shadow_size: Pixels,
10227    window_size: Size<Pixels>,
10228    tiling: Tiling,
10229) -> Option<ResizeEdge> {
10230    let bounds = Bounds::new(Point::default(), window_size).inset(shadow_size * 1.5);
10231    if bounds.contains(&pos) {
10232        return None;
10233    }
10234
10235    let corner_size = size(shadow_size * 1.5, shadow_size * 1.5);
10236    let top_left_bounds = Bounds::new(Point::new(px(0.), px(0.)), corner_size);
10237    if !tiling.top && top_left_bounds.contains(&pos) {
10238        return Some(ResizeEdge::TopLeft);
10239    }
10240
10241    let top_right_bounds = Bounds::new(
10242        Point::new(window_size.width - corner_size.width, px(0.)),
10243        corner_size,
10244    );
10245    if !tiling.top && top_right_bounds.contains(&pos) {
10246        return Some(ResizeEdge::TopRight);
10247    }
10248
10249    let bottom_left_bounds = Bounds::new(
10250        Point::new(px(0.), window_size.height - corner_size.height),
10251        corner_size,
10252    );
10253    if !tiling.bottom && bottom_left_bounds.contains(&pos) {
10254        return Some(ResizeEdge::BottomLeft);
10255    }
10256
10257    let bottom_right_bounds = Bounds::new(
10258        Point::new(
10259            window_size.width - corner_size.width,
10260            window_size.height - corner_size.height,
10261        ),
10262        corner_size,
10263    );
10264    if !tiling.bottom && bottom_right_bounds.contains(&pos) {
10265        return Some(ResizeEdge::BottomRight);
10266    }
10267
10268    if !tiling.top && pos.y < shadow_size {
10269        Some(ResizeEdge::Top)
10270    } else if !tiling.bottom && pos.y > window_size.height - shadow_size {
10271        Some(ResizeEdge::Bottom)
10272    } else if !tiling.left && pos.x < shadow_size {
10273        Some(ResizeEdge::Left)
10274    } else if !tiling.right && pos.x > window_size.width - shadow_size {
10275        Some(ResizeEdge::Right)
10276    } else {
10277        None
10278    }
10279}
10280
10281fn join_pane_into_active(
10282    active_pane: &Entity<Pane>,
10283    pane: &Entity<Pane>,
10284    window: &mut Window,
10285    cx: &mut App,
10286) {
10287    if pane == active_pane {
10288    } else if pane.read(cx).items_len() == 0 {
10289        pane.update(cx, |_, cx| {
10290            cx.emit(pane::Event::Remove {
10291                focus_on_pane: None,
10292            });
10293        })
10294    } else {
10295        move_all_items(pane, active_pane, window, cx);
10296    }
10297}
10298
10299fn move_all_items(
10300    from_pane: &Entity<Pane>,
10301    to_pane: &Entity<Pane>,
10302    window: &mut Window,
10303    cx: &mut App,
10304) {
10305    let destination_is_different = from_pane != to_pane;
10306    let mut moved_items = 0;
10307    for (item_ix, item_handle) in from_pane
10308        .read(cx)
10309        .items()
10310        .enumerate()
10311        .map(|(ix, item)| (ix, item.clone()))
10312        .collect::<Vec<_>>()
10313    {
10314        let ix = item_ix - moved_items;
10315        if destination_is_different {
10316            // Close item from previous pane
10317            from_pane.update(cx, |source, cx| {
10318                source.remove_item_and_focus_on_pane(ix, false, to_pane.clone(), window, cx);
10319            });
10320            moved_items += 1;
10321        }
10322
10323        // This automatically removes duplicate items in the pane
10324        to_pane.update(cx, |destination, cx| {
10325            destination.add_item(item_handle, true, true, None, window, cx);
10326            window.focus(&destination.focus_handle(cx), cx)
10327        });
10328    }
10329}
10330
10331pub fn move_item(
10332    source: &Entity<Pane>,
10333    destination: &Entity<Pane>,
10334    item_id_to_move: EntityId,
10335    destination_index: usize,
10336    activate: bool,
10337    window: &mut Window,
10338    cx: &mut App,
10339) {
10340    let Some((item_ix, item_handle)) = source
10341        .read(cx)
10342        .items()
10343        .enumerate()
10344        .find(|(_, item_handle)| item_handle.item_id() == item_id_to_move)
10345        .map(|(ix, item)| (ix, item.clone()))
10346    else {
10347        // Tab was closed during drag
10348        return;
10349    };
10350
10351    if source != destination {
10352        // Close item from previous pane
10353        source.update(cx, |source, cx| {
10354            source.remove_item_and_focus_on_pane(item_ix, false, destination.clone(), window, cx);
10355        });
10356    }
10357
10358    // This automatically removes duplicate items in the pane
10359    destination.update(cx, |destination, cx| {
10360        destination.add_item_inner(
10361            item_handle,
10362            activate,
10363            activate,
10364            activate,
10365            Some(destination_index),
10366            window,
10367            cx,
10368        );
10369        if activate {
10370            window.focus(&destination.focus_handle(cx), cx)
10371        }
10372    });
10373}
10374
10375pub fn move_active_item(
10376    source: &Entity<Pane>,
10377    destination: &Entity<Pane>,
10378    focus_destination: bool,
10379    close_if_empty: bool,
10380    window: &mut Window,
10381    cx: &mut App,
10382) {
10383    if source == destination {
10384        return;
10385    }
10386    let Some(active_item) = source.read(cx).active_item() else {
10387        return;
10388    };
10389    source.update(cx, |source_pane, cx| {
10390        let item_id = active_item.item_id();
10391        source_pane.remove_item(item_id, false, close_if_empty, window, cx);
10392        destination.update(cx, |target_pane, cx| {
10393            target_pane.add_item(
10394                active_item,
10395                focus_destination,
10396                focus_destination,
10397                Some(target_pane.items_len()),
10398                window,
10399                cx,
10400            );
10401        });
10402    });
10403}
10404
10405pub fn clone_active_item(
10406    workspace_id: Option<WorkspaceId>,
10407    source: &Entity<Pane>,
10408    destination: &Entity<Pane>,
10409    focus_destination: bool,
10410    window: &mut Window,
10411    cx: &mut App,
10412) {
10413    if source == destination {
10414        return;
10415    }
10416    let Some(active_item) = source.read(cx).active_item() else {
10417        return;
10418    };
10419    if !active_item.can_split(cx) {
10420        return;
10421    }
10422    let destination = destination.downgrade();
10423    let task = active_item.clone_on_split(workspace_id, window, cx);
10424    window
10425        .spawn(cx, async move |cx| {
10426            let Some(clone) = task.await else {
10427                return;
10428            };
10429            destination
10430                .update_in(cx, |target_pane, window, cx| {
10431                    target_pane.add_item(
10432                        clone,
10433                        focus_destination,
10434                        focus_destination,
10435                        Some(target_pane.items_len()),
10436                        window,
10437                        cx,
10438                    );
10439                })
10440                .log_err();
10441        })
10442        .detach();
10443}
10444
10445#[derive(Debug)]
10446pub struct WorkspacePosition {
10447    pub window_bounds: Option<WindowBounds>,
10448    pub display: Option<Uuid>,
10449    pub centered_layout: bool,
10450}
10451
10452pub fn remote_workspace_position_from_db(
10453    connection_options: RemoteConnectionOptions,
10454    paths_to_open: &[PathBuf],
10455    cx: &App,
10456) -> Task<Result<WorkspacePosition>> {
10457    let paths = paths_to_open.to_vec();
10458    let db = WorkspaceDb::global(cx);
10459    let kvp = db::kvp::KeyValueStore::global(cx);
10460
10461    cx.background_spawn(async move {
10462        let remote_connection_id = db
10463            .get_or_create_remote_connection(connection_options)
10464            .await
10465            .context("fetching serialized ssh project")?;
10466        let serialized_workspace = db.remote_workspace_for_roots(&paths, remote_connection_id);
10467
10468        let (window_bounds, display) = if let Some(bounds) = window_bounds_env_override() {
10469            (Some(WindowBounds::Windowed(bounds)), None)
10470        } else {
10471            let restorable_bounds = serialized_workspace
10472                .as_ref()
10473                .and_then(|workspace| {
10474                    Some((workspace.display?, workspace.window_bounds.map(|b| b.0)?))
10475                })
10476                .or_else(|| persistence::read_default_window_bounds(&kvp));
10477
10478            if let Some((serialized_display, serialized_bounds)) = restorable_bounds {
10479                (Some(serialized_bounds), Some(serialized_display))
10480            } else {
10481                (None, None)
10482            }
10483        };
10484
10485        let centered_layout = serialized_workspace
10486            .as_ref()
10487            .map(|w| w.centered_layout)
10488            .unwrap_or(false);
10489
10490        Ok(WorkspacePosition {
10491            window_bounds,
10492            display,
10493            centered_layout,
10494        })
10495    })
10496}
10497
10498pub fn with_active_or_new_workspace(
10499    cx: &mut App,
10500    f: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send + 'static,
10501) {
10502    match cx
10503        .active_window()
10504        .and_then(|w| w.downcast::<MultiWorkspace>())
10505    {
10506        Some(multi_workspace) => {
10507            cx.defer(move |cx| {
10508                multi_workspace
10509                    .update(cx, |multi_workspace, window, cx| {
10510                        let workspace = multi_workspace.workspace().clone();
10511                        workspace.update(cx, |workspace, cx| f(workspace, window, cx));
10512                    })
10513                    .log_err();
10514            });
10515        }
10516        None => {
10517            let app_state = AppState::global(cx);
10518            open_new(
10519                OpenOptions::default(),
10520                app_state,
10521                cx,
10522                move |workspace, window, cx| f(workspace, window, cx),
10523            )
10524            .detach_and_log_err(cx);
10525        }
10526    }
10527}
10528
10529/// Reads a panel's pixel size from its legacy KVP format and deletes the legacy
10530/// key. This migration path only runs once per panel per workspace.
10531fn load_legacy_panel_size(
10532    panel_key: &str,
10533    dock_position: DockPosition,
10534    workspace: &Workspace,
10535    cx: &mut App,
10536) -> Option<Pixels> {
10537    #[derive(Deserialize)]
10538    struct LegacyPanelState {
10539        #[serde(default)]
10540        width: Option<Pixels>,
10541        #[serde(default)]
10542        height: Option<Pixels>,
10543    }
10544
10545    let workspace_id = workspace
10546        .database_id()
10547        .map(|id| i64::from(id).to_string())
10548        .or_else(|| workspace.session_id())?;
10549
10550    let legacy_key = match panel_key {
10551        "ProjectPanel" => {
10552            format!("{}-{:?}", "ProjectPanel", workspace_id)
10553        }
10554        "OutlinePanel" => {
10555            format!("{}-{:?}", "OutlinePanel", workspace_id)
10556        }
10557        "GitPanel" => {
10558            format!("{}-{:?}", "GitPanel", workspace_id)
10559        }
10560        "TerminalPanel" => {
10561            format!("{:?}-{:?}", "TerminalPanel", workspace_id)
10562        }
10563        _ => return None,
10564    };
10565
10566    let kvp = db::kvp::KeyValueStore::global(cx);
10567    let json = kvp.read_kvp(&legacy_key).log_err().flatten()?;
10568    let state = serde_json::from_str::<LegacyPanelState>(&json).log_err()?;
10569    let size = match dock_position {
10570        DockPosition::Bottom => state.height,
10571        DockPosition::Left | DockPosition::Right => state.width,
10572    }?;
10573
10574    cx.background_spawn(async move { kvp.delete_kvp(legacy_key).await })
10575        .detach_and_log_err(cx);
10576
10577    Some(size)
10578}
10579
10580#[cfg(test)]
10581mod tests {
10582    use std::{cell::RefCell, rc::Rc, sync::Arc, time::Duration};
10583
10584    use super::*;
10585    use crate::{
10586        dock::{PanelEvent, test::TestPanel},
10587        item::{
10588            ItemBufferKind, ItemEvent,
10589            test::{TestItem, TestProjectItem},
10590        },
10591    };
10592    use fs::FakeFs;
10593    use gpui::{
10594        DismissEvent, Empty, EventEmitter, FocusHandle, Focusable, Render, TestAppContext,
10595        UpdateGlobal, VisualTestContext, px,
10596    };
10597    use project::{Project, ProjectEntryId};
10598    use serde_json::json;
10599    use settings::SettingsStore;
10600    use util::path;
10601    use util::rel_path::rel_path;
10602
10603    #[gpui::test]
10604    async fn test_tab_disambiguation(cx: &mut TestAppContext) {
10605        init_test(cx);
10606
10607        let fs = FakeFs::new(cx.executor());
10608        let project = Project::test(fs, [], cx).await;
10609        let (workspace, cx) =
10610            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10611
10612        // Adding an item with no ambiguity renders the tab without detail.
10613        let item1 = cx.new(|cx| {
10614            let mut item = TestItem::new(cx);
10615            item.tab_descriptions = Some(vec!["c", "b1/c", "a/b1/c"]);
10616            item
10617        });
10618        workspace.update_in(cx, |workspace, window, cx| {
10619            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
10620        });
10621        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(0)));
10622
10623        // Adding an item that creates ambiguity increases the level of detail on
10624        // both tabs.
10625        let item2 = cx.new_window_entity(|_window, cx| {
10626            let mut item = TestItem::new(cx);
10627            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
10628            item
10629        });
10630        workspace.update_in(cx, |workspace, window, cx| {
10631            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
10632        });
10633        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
10634        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
10635
10636        // Adding an item that creates ambiguity increases the level of detail only
10637        // on the ambiguous tabs. In this case, the ambiguity can't be resolved so
10638        // we stop at the highest detail available.
10639        let item3 = cx.new(|cx| {
10640            let mut item = TestItem::new(cx);
10641            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
10642            item
10643        });
10644        workspace.update_in(cx, |workspace, window, cx| {
10645            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
10646        });
10647        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
10648        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
10649        item3.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
10650    }
10651
10652    #[gpui::test]
10653    async fn test_tracking_active_path(cx: &mut TestAppContext) {
10654        init_test(cx);
10655
10656        let fs = FakeFs::new(cx.executor());
10657        fs.insert_tree(
10658            "/root1",
10659            json!({
10660                "one.txt": "",
10661                "two.txt": "",
10662            }),
10663        )
10664        .await;
10665        fs.insert_tree(
10666            "/root2",
10667            json!({
10668                "three.txt": "",
10669            }),
10670        )
10671        .await;
10672
10673        let project = Project::test(fs, ["root1".as_ref()], cx).await;
10674        let (workspace, cx) =
10675            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10676        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10677        let worktree_id = project.update(cx, |project, cx| {
10678            project.worktrees(cx).next().unwrap().read(cx).id()
10679        });
10680
10681        let item1 = cx.new(|cx| {
10682            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
10683        });
10684        let item2 = cx.new(|cx| {
10685            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "two.txt", cx)])
10686        });
10687
10688        // Add an item to an empty pane
10689        workspace.update_in(cx, |workspace, window, cx| {
10690            workspace.add_item_to_active_pane(Box::new(item1), None, true, window, cx)
10691        });
10692        project.update(cx, |project, cx| {
10693            assert_eq!(
10694                project.active_entry(),
10695                project
10696                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
10697                    .map(|e| e.id)
10698            );
10699        });
10700        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
10701
10702        // Add a second item to a non-empty pane
10703        workspace.update_in(cx, |workspace, window, cx| {
10704            workspace.add_item_to_active_pane(Box::new(item2), None, true, window, cx)
10705        });
10706        assert_eq!(cx.window_title().as_deref(), Some("root1 — two.txt"));
10707        project.update(cx, |project, cx| {
10708            assert_eq!(
10709                project.active_entry(),
10710                project
10711                    .entry_for_path(&(worktree_id, rel_path("two.txt")).into(), cx)
10712                    .map(|e| e.id)
10713            );
10714        });
10715
10716        // Close the active item
10717        pane.update_in(cx, |pane, window, cx| {
10718            pane.close_active_item(&Default::default(), window, cx)
10719        })
10720        .await
10721        .unwrap();
10722        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
10723        project.update(cx, |project, cx| {
10724            assert_eq!(
10725                project.active_entry(),
10726                project
10727                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
10728                    .map(|e| e.id)
10729            );
10730        });
10731
10732        // Add a project folder
10733        project
10734            .update(cx, |project, cx| {
10735                project.find_or_create_worktree("root2", true, cx)
10736            })
10737            .await
10738            .unwrap();
10739        assert_eq!(cx.window_title().as_deref(), Some("root1, root2 — one.txt"));
10740
10741        // Remove a project folder
10742        project.update(cx, |project, cx| project.remove_worktree(worktree_id, cx));
10743        assert_eq!(cx.window_title().as_deref(), Some("root2 — one.txt"));
10744    }
10745
10746    #[gpui::test]
10747    async fn test_close_window(cx: &mut TestAppContext) {
10748        init_test(cx);
10749
10750        let fs = FakeFs::new(cx.executor());
10751        fs.insert_tree("/root", json!({ "one": "" })).await;
10752
10753        let project = Project::test(fs, ["root".as_ref()], cx).await;
10754        let (workspace, cx) =
10755            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10756
10757        // When there are no dirty items, there's nothing to do.
10758        let item1 = cx.new(TestItem::new);
10759        workspace.update_in(cx, |w, window, cx| {
10760            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx)
10761        });
10762        let task = workspace.update_in(cx, |w, window, cx| {
10763            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
10764        });
10765        assert!(task.await.unwrap());
10766
10767        // When there are dirty untitled items, prompt to save each one. If the user
10768        // cancels any prompt, then abort.
10769        let item2 = cx.new(|cx| TestItem::new(cx).with_dirty(true));
10770        let item3 = cx.new(|cx| {
10771            TestItem::new(cx)
10772                .with_dirty(true)
10773                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
10774        });
10775        workspace.update_in(cx, |w, window, cx| {
10776            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
10777            w.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
10778        });
10779        let task = workspace.update_in(cx, |w, window, cx| {
10780            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
10781        });
10782        cx.executor().run_until_parked();
10783        cx.simulate_prompt_answer("Cancel"); // cancel save all
10784        cx.executor().run_until_parked();
10785        assert!(!cx.has_pending_prompt());
10786        assert!(!task.await.unwrap());
10787    }
10788
10789    #[gpui::test]
10790    async fn test_multi_workspace_close_window_multiple_workspaces_cancel(cx: &mut TestAppContext) {
10791        init_test(cx);
10792
10793        let fs = FakeFs::new(cx.executor());
10794        fs.insert_tree("/root", json!({ "one": "" })).await;
10795
10796        let project_a = Project::test(fs.clone(), ["root".as_ref()], cx).await;
10797        let project_b = Project::test(fs, ["root".as_ref()], cx).await;
10798        let multi_workspace_handle =
10799            cx.add_window(|window, cx| MultiWorkspace::test_new(project_a.clone(), window, cx));
10800        cx.run_until_parked();
10801
10802        multi_workspace_handle
10803            .update(cx, |mw, _window, cx| {
10804                mw.open_sidebar(cx);
10805            })
10806            .unwrap();
10807
10808        let workspace_a = multi_workspace_handle
10809            .read_with(cx, |mw, _| mw.workspace().clone())
10810            .unwrap();
10811
10812        let workspace_b = multi_workspace_handle
10813            .update(cx, |mw, window, cx| {
10814                mw.test_add_workspace(project_b, window, cx)
10815            })
10816            .unwrap();
10817
10818        // Activate workspace A
10819        multi_workspace_handle
10820            .update(cx, |mw, window, cx| {
10821                let workspace = mw.workspaces().next().unwrap().clone();
10822                mw.activate(workspace, window, cx);
10823            })
10824            .unwrap();
10825
10826        let cx = &mut VisualTestContext::from_window(multi_workspace_handle.into(), cx);
10827
10828        // Workspace A has a clean item
10829        let item_a = cx.new(TestItem::new);
10830        workspace_a.update_in(cx, |w, window, cx| {
10831            w.add_item_to_active_pane(Box::new(item_a.clone()), None, true, window, cx)
10832        });
10833
10834        // Workspace B has a dirty item
10835        let item_b = cx.new(|cx| TestItem::new(cx).with_dirty(true));
10836        workspace_b.update_in(cx, |w, window, cx| {
10837            w.add_item_to_active_pane(Box::new(item_b.clone()), None, true, window, cx)
10838        });
10839
10840        // Verify workspace A is active
10841        multi_workspace_handle
10842            .read_with(cx, |mw, _| {
10843                assert_eq!(mw.workspace(), &workspace_a);
10844            })
10845            .unwrap();
10846
10847        // Dispatch CloseWindow — workspace A will pass, workspace B will prompt
10848        multi_workspace_handle
10849            .update(cx, |mw, window, cx| {
10850                mw.close_window(&CloseWindow, window, cx);
10851            })
10852            .unwrap();
10853        cx.run_until_parked();
10854
10855        // Workspace B should now be active since it has dirty items that need attention
10856        multi_workspace_handle
10857            .read_with(cx, |mw, _| {
10858                assert_eq!(
10859                    mw.workspace(),
10860                    &workspace_b,
10861                    "workspace B should be activated when it prompts"
10862                );
10863            })
10864            .unwrap();
10865
10866        // User cancels the save prompt from workspace B
10867        cx.simulate_prompt_answer("Cancel");
10868        cx.run_until_parked();
10869
10870        // Window should still exist because workspace B's close was cancelled
10871        assert!(
10872            multi_workspace_handle.update(cx, |_, _, _| ()).is_ok(),
10873            "window should still exist after cancelling one workspace's close"
10874        );
10875    }
10876
10877    #[gpui::test]
10878    async fn test_close_window_with_serializable_items(cx: &mut TestAppContext) {
10879        init_test(cx);
10880
10881        // Register TestItem as a serializable item
10882        cx.update(|cx| {
10883            register_serializable_item::<TestItem>(cx);
10884        });
10885
10886        let fs = FakeFs::new(cx.executor());
10887        fs.insert_tree("/root", json!({ "one": "" })).await;
10888
10889        let project = Project::test(fs, ["root".as_ref()], cx).await;
10890        let (workspace, cx) =
10891            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10892
10893        // When there are dirty untitled items, but they can serialize, then there is no prompt.
10894        let item1 = cx.new(|cx| {
10895            TestItem::new(cx)
10896                .with_dirty(true)
10897                .with_serialize(|| Some(Task::ready(Ok(()))))
10898        });
10899        let item2 = cx.new(|cx| {
10900            TestItem::new(cx)
10901                .with_dirty(true)
10902                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
10903                .with_serialize(|| Some(Task::ready(Ok(()))))
10904        });
10905        workspace.update_in(cx, |w, window, cx| {
10906            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
10907            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
10908        });
10909        let task = workspace.update_in(cx, |w, window, cx| {
10910            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
10911        });
10912        assert!(task.await.unwrap());
10913    }
10914
10915    #[gpui::test]
10916    async fn test_close_pane_items(cx: &mut TestAppContext) {
10917        init_test(cx);
10918
10919        let fs = FakeFs::new(cx.executor());
10920
10921        let project = Project::test(fs, None, cx).await;
10922        let (workspace, cx) =
10923            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10924
10925        let item1 = cx.new(|cx| {
10926            TestItem::new(cx)
10927                .with_dirty(true)
10928                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10929        });
10930        let item2 = cx.new(|cx| {
10931            TestItem::new(cx)
10932                .with_dirty(true)
10933                .with_conflict(true)
10934                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10935        });
10936        let item3 = cx.new(|cx| {
10937            TestItem::new(cx)
10938                .with_dirty(true)
10939                .with_conflict(true)
10940                .with_project_items(&[dirty_project_item(3, "3.txt", cx)])
10941        });
10942        let item4 = cx.new(|cx| {
10943            TestItem::new(cx).with_dirty(true).with_project_items(&[{
10944                let project_item = TestProjectItem::new_untitled(cx);
10945                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
10946                project_item
10947            }])
10948        });
10949        let pane = workspace.update_in(cx, |workspace, window, cx| {
10950            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
10951            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
10952            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
10953            workspace.add_item_to_active_pane(Box::new(item4.clone()), None, true, window, cx);
10954            workspace.active_pane().clone()
10955        });
10956
10957        let close_items = pane.update_in(cx, |pane, window, cx| {
10958            pane.activate_item(1, true, true, window, cx);
10959            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
10960            let item1_id = item1.item_id();
10961            let item3_id = item3.item_id();
10962            let item4_id = item4.item_id();
10963            pane.close_items(window, cx, SaveIntent::Close, &move |id| {
10964                [item1_id, item3_id, item4_id].contains(&id)
10965            })
10966        });
10967        cx.executor().run_until_parked();
10968
10969        assert!(cx.has_pending_prompt());
10970        cx.simulate_prompt_answer("Save all");
10971
10972        cx.executor().run_until_parked();
10973
10974        // Item 1 is saved. There's a prompt to save item 3.
10975        pane.update(cx, |pane, cx| {
10976            assert_eq!(item1.read(cx).save_count, 1);
10977            assert_eq!(item1.read(cx).save_as_count, 0);
10978            assert_eq!(item1.read(cx).reload_count, 0);
10979            assert_eq!(pane.items_len(), 3);
10980            assert_eq!(pane.active_item().unwrap().item_id(), item3.item_id());
10981        });
10982        assert!(cx.has_pending_prompt());
10983
10984        // Cancel saving item 3.
10985        cx.simulate_prompt_answer("Discard");
10986        cx.executor().run_until_parked();
10987
10988        // Item 3 is reloaded. There's a prompt to save item 4.
10989        pane.update(cx, |pane, cx| {
10990            assert_eq!(item3.read(cx).save_count, 0);
10991            assert_eq!(item3.read(cx).save_as_count, 0);
10992            assert_eq!(item3.read(cx).reload_count, 1);
10993            assert_eq!(pane.items_len(), 2);
10994            assert_eq!(pane.active_item().unwrap().item_id(), item4.item_id());
10995        });
10996
10997        // There's a prompt for a path for item 4.
10998        cx.simulate_new_path_selection(|_| Some(Default::default()));
10999        close_items.await.unwrap();
11000
11001        // The requested items are closed.
11002        pane.update(cx, |pane, cx| {
11003            assert_eq!(item4.read(cx).save_count, 0);
11004            assert_eq!(item4.read(cx).save_as_count, 1);
11005            assert_eq!(item4.read(cx).reload_count, 0);
11006            assert_eq!(pane.items_len(), 1);
11007            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
11008        });
11009    }
11010
11011    #[gpui::test]
11012    async fn test_prompting_to_save_only_on_last_item_for_entry(cx: &mut TestAppContext) {
11013        init_test(cx);
11014
11015        let fs = FakeFs::new(cx.executor());
11016        let project = Project::test(fs, [], cx).await;
11017        let (workspace, cx) =
11018            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11019
11020        // Create several workspace items with single project entries, and two
11021        // workspace items with multiple project entries.
11022        let single_entry_items = (0..=4)
11023            .map(|project_entry_id| {
11024                cx.new(|cx| {
11025                    TestItem::new(cx)
11026                        .with_dirty(true)
11027                        .with_project_items(&[dirty_project_item(
11028                            project_entry_id,
11029                            &format!("{project_entry_id}.txt"),
11030                            cx,
11031                        )])
11032                })
11033            })
11034            .collect::<Vec<_>>();
11035        let item_2_3 = cx.new(|cx| {
11036            TestItem::new(cx)
11037                .with_dirty(true)
11038                .with_buffer_kind(ItemBufferKind::Multibuffer)
11039                .with_project_items(&[
11040                    single_entry_items[2].read(cx).project_items[0].clone(),
11041                    single_entry_items[3].read(cx).project_items[0].clone(),
11042                ])
11043        });
11044        let item_3_4 = cx.new(|cx| {
11045            TestItem::new(cx)
11046                .with_dirty(true)
11047                .with_buffer_kind(ItemBufferKind::Multibuffer)
11048                .with_project_items(&[
11049                    single_entry_items[3].read(cx).project_items[0].clone(),
11050                    single_entry_items[4].read(cx).project_items[0].clone(),
11051                ])
11052        });
11053
11054        // Create two panes that contain the following project entries:
11055        //   left pane:
11056        //     multi-entry items:   (2, 3)
11057        //     single-entry items:  0, 2, 3, 4
11058        //   right pane:
11059        //     single-entry items:  4, 1
11060        //     multi-entry items:   (3, 4)
11061        let (left_pane, right_pane) = workspace.update_in(cx, |workspace, window, cx| {
11062            let left_pane = workspace.active_pane().clone();
11063            workspace.add_item_to_active_pane(Box::new(item_2_3.clone()), None, true, window, cx);
11064            workspace.add_item_to_active_pane(
11065                single_entry_items[0].boxed_clone(),
11066                None,
11067                true,
11068                window,
11069                cx,
11070            );
11071            workspace.add_item_to_active_pane(
11072                single_entry_items[2].boxed_clone(),
11073                None,
11074                true,
11075                window,
11076                cx,
11077            );
11078            workspace.add_item_to_active_pane(
11079                single_entry_items[3].boxed_clone(),
11080                None,
11081                true,
11082                window,
11083                cx,
11084            );
11085            workspace.add_item_to_active_pane(
11086                single_entry_items[4].boxed_clone(),
11087                None,
11088                true,
11089                window,
11090                cx,
11091            );
11092
11093            let right_pane =
11094                workspace.split_and_clone(left_pane.clone(), SplitDirection::Right, window, cx);
11095
11096            let boxed_clone = single_entry_items[1].boxed_clone();
11097            let right_pane = window.spawn(cx, async move |cx| {
11098                right_pane.await.inspect(|right_pane| {
11099                    right_pane
11100                        .update_in(cx, |pane, window, cx| {
11101                            pane.add_item(boxed_clone, true, true, None, window, cx);
11102                            pane.add_item(Box::new(item_3_4.clone()), true, true, None, window, cx);
11103                        })
11104                        .unwrap();
11105                })
11106            });
11107
11108            (left_pane, right_pane)
11109        });
11110        let right_pane = right_pane.await.unwrap();
11111        cx.focus(&right_pane);
11112
11113        let close = right_pane.update_in(cx, |pane, window, cx| {
11114            pane.close_all_items(&CloseAllItems::default(), window, cx)
11115                .unwrap()
11116        });
11117        cx.executor().run_until_parked();
11118
11119        let msg = cx.pending_prompt().unwrap().0;
11120        assert!(msg.contains("1.txt"));
11121        assert!(!msg.contains("2.txt"));
11122        assert!(!msg.contains("3.txt"));
11123        assert!(!msg.contains("4.txt"));
11124
11125        // With best-effort close, cancelling item 1 keeps it open but items 4
11126        // and (3,4) still close since their entries exist in left pane.
11127        cx.simulate_prompt_answer("Cancel");
11128        close.await;
11129
11130        right_pane.read_with(cx, |pane, _| {
11131            assert_eq!(pane.items_len(), 1);
11132        });
11133
11134        // Remove item 3 from left pane, making (2,3) the only item with entry 3.
11135        left_pane
11136            .update_in(cx, |left_pane, window, cx| {
11137                left_pane.close_item_by_id(
11138                    single_entry_items[3].entity_id(),
11139                    SaveIntent::Skip,
11140                    window,
11141                    cx,
11142                )
11143            })
11144            .await
11145            .unwrap();
11146
11147        let close = left_pane.update_in(cx, |pane, window, cx| {
11148            pane.close_all_items(&CloseAllItems::default(), window, cx)
11149                .unwrap()
11150        });
11151        cx.executor().run_until_parked();
11152
11153        let details = cx.pending_prompt().unwrap().1;
11154        assert!(details.contains("0.txt"));
11155        assert!(details.contains("3.txt"));
11156        assert!(details.contains("4.txt"));
11157        // Ideally 2.txt wouldn't appear since entry 2 still exists in item 2.
11158        // But we can only save whole items, so saving (2,3) for entry 3 includes 2.
11159        // assert!(!details.contains("2.txt"));
11160
11161        cx.simulate_prompt_answer("Save all");
11162        cx.executor().run_until_parked();
11163        close.await;
11164
11165        left_pane.read_with(cx, |pane, _| {
11166            assert_eq!(pane.items_len(), 0);
11167        });
11168    }
11169
11170    #[gpui::test]
11171    async fn test_autosave(cx: &mut gpui::TestAppContext) {
11172        init_test(cx);
11173
11174        let fs = FakeFs::new(cx.executor());
11175        let project = Project::test(fs, [], cx).await;
11176        let (workspace, cx) =
11177            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11178        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11179
11180        let item = cx.new(|cx| {
11181            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
11182        });
11183        let item_id = item.entity_id();
11184        workspace.update_in(cx, |workspace, window, cx| {
11185            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
11186        });
11187
11188        // Autosave on window change.
11189        item.update(cx, |item, cx| {
11190            SettingsStore::update_global(cx, |settings, cx| {
11191                settings.update_user_settings(cx, |settings| {
11192                    settings.workspace.autosave = Some(AutosaveSetting::OnWindowChange);
11193                })
11194            });
11195            item.is_dirty = true;
11196        });
11197
11198        // Deactivating the window saves the file.
11199        cx.deactivate_window();
11200        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
11201
11202        // Re-activating the window doesn't save the file.
11203        cx.update(|window, _| window.activate_window());
11204        cx.executor().run_until_parked();
11205        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
11206
11207        // Autosave on focus change.
11208        item.update_in(cx, |item, window, cx| {
11209            cx.focus_self(window);
11210            SettingsStore::update_global(cx, |settings, cx| {
11211                settings.update_user_settings(cx, |settings| {
11212                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
11213                })
11214            });
11215            item.is_dirty = true;
11216        });
11217        // Blurring the item saves the file.
11218        item.update_in(cx, |_, window, _| window.blur());
11219        cx.executor().run_until_parked();
11220        item.read_with(cx, |item, _| assert_eq!(item.save_count, 2));
11221
11222        // Deactivating the window still saves the file.
11223        item.update_in(cx, |item, window, cx| {
11224            cx.focus_self(window);
11225            item.is_dirty = true;
11226        });
11227        cx.deactivate_window();
11228        item.update(cx, |item, _| assert_eq!(item.save_count, 3));
11229
11230        // Autosave after delay.
11231        item.update(cx, |item, cx| {
11232            SettingsStore::update_global(cx, |settings, cx| {
11233                settings.update_user_settings(cx, |settings| {
11234                    settings.workspace.autosave = Some(AutosaveSetting::AfterDelay {
11235                        milliseconds: 500.into(),
11236                    });
11237                })
11238            });
11239            item.is_dirty = true;
11240            cx.emit(ItemEvent::Edit);
11241        });
11242
11243        // Delay hasn't fully expired, so the file is still dirty and unsaved.
11244        cx.executor().advance_clock(Duration::from_millis(250));
11245        item.read_with(cx, |item, _| assert_eq!(item.save_count, 3));
11246
11247        // After delay expires, the file is saved.
11248        cx.executor().advance_clock(Duration::from_millis(250));
11249        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
11250
11251        // Autosave after delay, should save earlier than delay if tab is closed
11252        item.update(cx, |item, cx| {
11253            item.is_dirty = true;
11254            cx.emit(ItemEvent::Edit);
11255        });
11256        cx.executor().advance_clock(Duration::from_millis(250));
11257        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
11258
11259        // // Ensure auto save with delay saves the item on close, even if the timer hasn't yet run out.
11260        pane.update_in(cx, |pane, window, cx| {
11261            pane.close_items(window, cx, SaveIntent::Close, &move |id| id == item_id)
11262        })
11263        .await
11264        .unwrap();
11265        assert!(!cx.has_pending_prompt());
11266        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
11267
11268        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
11269        workspace.update_in(cx, |workspace, window, cx| {
11270            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
11271        });
11272        item.update_in(cx, |item, _window, cx| {
11273            item.is_dirty = true;
11274            for project_item in &mut item.project_items {
11275                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
11276            }
11277        });
11278        cx.run_until_parked();
11279        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
11280
11281        // Autosave on focus change, ensuring closing the tab counts as such.
11282        item.update(cx, |item, cx| {
11283            SettingsStore::update_global(cx, |settings, cx| {
11284                settings.update_user_settings(cx, |settings| {
11285                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
11286                })
11287            });
11288            item.is_dirty = true;
11289            for project_item in &mut item.project_items {
11290                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
11291            }
11292        });
11293
11294        pane.update_in(cx, |pane, window, cx| {
11295            pane.close_items(window, cx, SaveIntent::Close, &move |id| id == item_id)
11296        })
11297        .await
11298        .unwrap();
11299        assert!(!cx.has_pending_prompt());
11300        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
11301
11302        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
11303        workspace.update_in(cx, |workspace, window, cx| {
11304            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
11305        });
11306        item.update_in(cx, |item, window, cx| {
11307            item.project_items[0].update(cx, |item, _| {
11308                item.entry_id = None;
11309            });
11310            item.is_dirty = true;
11311            window.blur();
11312        });
11313        cx.run_until_parked();
11314        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
11315
11316        // Ensure autosave is prevented for deleted files also when closing the buffer.
11317        let _close_items = pane.update_in(cx, |pane, window, cx| {
11318            pane.close_items(window, cx, SaveIntent::Close, &move |id| id == item_id)
11319        });
11320        cx.run_until_parked();
11321        assert!(cx.has_pending_prompt());
11322        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
11323    }
11324
11325    #[gpui::test]
11326    async fn test_autosave_on_focus_change_in_multibuffer(cx: &mut gpui::TestAppContext) {
11327        init_test(cx);
11328
11329        let fs = FakeFs::new(cx.executor());
11330        let project = Project::test(fs, [], cx).await;
11331        let (workspace, cx) =
11332            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11333
11334        // Create a multibuffer-like item with two child focus handles,
11335        // simulating individual buffer editors within a multibuffer.
11336        let item = cx.new(|cx| {
11337            TestItem::new(cx)
11338                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
11339                .with_child_focus_handles(2, cx)
11340        });
11341        workspace.update_in(cx, |workspace, window, cx| {
11342            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
11343        });
11344
11345        // Set autosave to OnFocusChange and focus the first child handle,
11346        // simulating the user's cursor being inside one of the multibuffer's excerpts.
11347        item.update_in(cx, |item, window, cx| {
11348            SettingsStore::update_global(cx, |settings, cx| {
11349                settings.update_user_settings(cx, |settings| {
11350                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
11351                })
11352            });
11353            item.is_dirty = true;
11354            window.focus(&item.child_focus_handles[0], cx);
11355        });
11356        cx.executor().run_until_parked();
11357        item.read_with(cx, |item, _| assert_eq!(item.save_count, 0));
11358
11359        // Moving focus from one child to another within the same item should
11360        // NOT trigger autosave — focus is still within the item's focus hierarchy.
11361        item.update_in(cx, |item, window, cx| {
11362            window.focus(&item.child_focus_handles[1], cx);
11363        });
11364        cx.executor().run_until_parked();
11365        item.read_with(cx, |item, _| {
11366            assert_eq!(
11367                item.save_count, 0,
11368                "Switching focus between children within the same item should not autosave"
11369            );
11370        });
11371
11372        // Blurring the item saves the file. This is the core regression scenario:
11373        // with `on_blur`, this would NOT trigger because `on_blur` only fires when
11374        // the item's own focus handle is the leaf that lost focus. In a multibuffer,
11375        // the leaf is always a child focus handle, so `on_blur` never detected
11376        // focus leaving the item.
11377        item.update_in(cx, |_, window, _| window.blur());
11378        cx.executor().run_until_parked();
11379        item.read_with(cx, |item, _| {
11380            assert_eq!(
11381                item.save_count, 1,
11382                "Blurring should trigger autosave when focus was on a child of the item"
11383            );
11384        });
11385
11386        // Deactivating the window should also trigger autosave when a child of
11387        // the multibuffer item currently owns focus.
11388        item.update_in(cx, |item, window, cx| {
11389            item.is_dirty = true;
11390            window.focus(&item.child_focus_handles[0], cx);
11391        });
11392        cx.executor().run_until_parked();
11393        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
11394
11395        cx.deactivate_window();
11396        item.read_with(cx, |item, _| {
11397            assert_eq!(
11398                item.save_count, 2,
11399                "Deactivating window should trigger autosave when focus was on a child"
11400            );
11401        });
11402    }
11403
11404    #[gpui::test]
11405    async fn test_pane_navigation(cx: &mut gpui::TestAppContext) {
11406        init_test(cx);
11407
11408        let fs = FakeFs::new(cx.executor());
11409
11410        let project = Project::test(fs, [], cx).await;
11411        let (workspace, cx) =
11412            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11413
11414        let item = cx.new(|cx| {
11415            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
11416        });
11417        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11418        let toolbar = pane.read_with(cx, |pane, _| pane.toolbar().clone());
11419        let toolbar_notify_count = Rc::new(RefCell::new(0));
11420
11421        workspace.update_in(cx, |workspace, window, cx| {
11422            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
11423            let toolbar_notification_count = toolbar_notify_count.clone();
11424            cx.observe_in(&toolbar, window, move |_, _, _, _| {
11425                *toolbar_notification_count.borrow_mut() += 1
11426            })
11427            .detach();
11428        });
11429
11430        pane.read_with(cx, |pane, _| {
11431            assert!(!pane.can_navigate_backward());
11432            assert!(!pane.can_navigate_forward());
11433        });
11434
11435        item.update_in(cx, |item, _, cx| {
11436            item.set_state("one".to_string(), cx);
11437        });
11438
11439        // Toolbar must be notified to re-render the navigation buttons
11440        assert_eq!(*toolbar_notify_count.borrow(), 1);
11441
11442        pane.read_with(cx, |pane, _| {
11443            assert!(pane.can_navigate_backward());
11444            assert!(!pane.can_navigate_forward());
11445        });
11446
11447        workspace
11448            .update_in(cx, |workspace, window, cx| {
11449                workspace.go_back(pane.downgrade(), window, cx)
11450            })
11451            .await
11452            .unwrap();
11453
11454        assert_eq!(*toolbar_notify_count.borrow(), 2);
11455        pane.read_with(cx, |pane, _| {
11456            assert!(!pane.can_navigate_backward());
11457            assert!(pane.can_navigate_forward());
11458        });
11459    }
11460
11461    /// Tests that the navigation history deduplicates entries for the same item.
11462    ///
11463    /// When navigating back and forth between items (e.g., A -> B -> A -> B -> A -> B -> C),
11464    /// the navigation history deduplicates by keeping only the most recent visit to each item,
11465    /// resulting in [A, B, C] instead of [A, B, A, B, A, B, C]. This ensures that Go Back (Ctrl-O)
11466    /// navigates through unique items efficiently: C -> B -> A, rather than bouncing between
11467    /// repeated entries: C -> B -> A -> B -> A -> B -> A.
11468    ///
11469    /// This behavior prevents the navigation history from growing unnecessarily large and provides
11470    /// a better user experience by eliminating redundant navigation steps when jumping between files.
11471    #[gpui::test]
11472    async fn test_navigation_history_deduplication(cx: &mut gpui::TestAppContext) {
11473        init_test(cx);
11474
11475        let fs = FakeFs::new(cx.executor());
11476        let project = Project::test(fs, [], cx).await;
11477        let (workspace, cx) =
11478            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11479
11480        let item_a = cx.new(|cx| {
11481            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "a.txt", cx)])
11482        });
11483        let item_b = cx.new(|cx| {
11484            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "b.txt", cx)])
11485        });
11486        let item_c = cx.new(|cx| {
11487            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "c.txt", cx)])
11488        });
11489
11490        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11491
11492        workspace.update_in(cx, |workspace, window, cx| {
11493            workspace.add_item_to_active_pane(Box::new(item_a.clone()), None, true, window, cx);
11494            workspace.add_item_to_active_pane(Box::new(item_b.clone()), None, true, window, cx);
11495            workspace.add_item_to_active_pane(Box::new(item_c.clone()), None, true, window, cx);
11496        });
11497
11498        workspace.update_in(cx, |workspace, window, cx| {
11499            workspace.activate_item(&item_a, false, false, window, cx);
11500        });
11501        cx.run_until_parked();
11502
11503        workspace.update_in(cx, |workspace, window, cx| {
11504            workspace.activate_item(&item_b, false, false, window, cx);
11505        });
11506        cx.run_until_parked();
11507
11508        workspace.update_in(cx, |workspace, window, cx| {
11509            workspace.activate_item(&item_a, false, false, window, cx);
11510        });
11511        cx.run_until_parked();
11512
11513        workspace.update_in(cx, |workspace, window, cx| {
11514            workspace.activate_item(&item_b, false, false, window, cx);
11515        });
11516        cx.run_until_parked();
11517
11518        workspace.update_in(cx, |workspace, window, cx| {
11519            workspace.activate_item(&item_a, false, false, window, cx);
11520        });
11521        cx.run_until_parked();
11522
11523        workspace.update_in(cx, |workspace, window, cx| {
11524            workspace.activate_item(&item_b, false, false, window, cx);
11525        });
11526        cx.run_until_parked();
11527
11528        workspace.update_in(cx, |workspace, window, cx| {
11529            workspace.activate_item(&item_c, false, false, window, cx);
11530        });
11531        cx.run_until_parked();
11532
11533        let backward_count = pane.read_with(cx, |pane, cx| {
11534            let mut count = 0;
11535            pane.nav_history().for_each_entry(cx, &mut |_, _| {
11536                count += 1;
11537            });
11538            count
11539        });
11540        assert!(
11541            backward_count <= 4,
11542            "Should have at most 4 entries, got {}",
11543            backward_count
11544        );
11545
11546        workspace
11547            .update_in(cx, |workspace, window, cx| {
11548                workspace.go_back(pane.downgrade(), window, cx)
11549            })
11550            .await
11551            .unwrap();
11552
11553        let active_item = workspace.read_with(cx, |workspace, cx| {
11554            workspace.active_item(cx).unwrap().item_id()
11555        });
11556        assert_eq!(
11557            active_item,
11558            item_b.entity_id(),
11559            "After first go_back, should be at item B"
11560        );
11561
11562        workspace
11563            .update_in(cx, |workspace, window, cx| {
11564                workspace.go_back(pane.downgrade(), window, cx)
11565            })
11566            .await
11567            .unwrap();
11568
11569        let active_item = workspace.read_with(cx, |workspace, cx| {
11570            workspace.active_item(cx).unwrap().item_id()
11571        });
11572        assert_eq!(
11573            active_item,
11574            item_a.entity_id(),
11575            "After second go_back, should be at item A"
11576        );
11577
11578        pane.read_with(cx, |pane, _| {
11579            assert!(pane.can_navigate_forward(), "Should be able to go forward");
11580        });
11581    }
11582
11583    #[gpui::test]
11584    async fn test_activate_last_pane(cx: &mut gpui::TestAppContext) {
11585        init_test(cx);
11586        let fs = FakeFs::new(cx.executor());
11587        let project = Project::test(fs, [], cx).await;
11588        let (multi_workspace, cx) =
11589            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
11590        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
11591
11592        workspace.update_in(cx, |workspace, window, cx| {
11593            let first_item = cx.new(|cx| {
11594                TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
11595            });
11596            workspace.add_item_to_active_pane(Box::new(first_item), None, true, window, cx);
11597            workspace.split_pane(
11598                workspace.active_pane().clone(),
11599                SplitDirection::Right,
11600                window,
11601                cx,
11602            );
11603            workspace.split_pane(
11604                workspace.active_pane().clone(),
11605                SplitDirection::Right,
11606                window,
11607                cx,
11608            );
11609        });
11610
11611        let (first_pane_id, target_last_pane_id) = workspace.update(cx, |workspace, _cx| {
11612            let panes = workspace.center.panes();
11613            assert!(panes.len() >= 2);
11614            (
11615                panes.first().expect("at least one pane").entity_id(),
11616                panes.last().expect("at least one pane").entity_id(),
11617            )
11618        });
11619
11620        workspace.update_in(cx, |workspace, window, cx| {
11621            workspace.activate_pane_at_index(&ActivatePane(0), window, cx);
11622        });
11623        workspace.update(cx, |workspace, _| {
11624            assert_eq!(workspace.active_pane().entity_id(), first_pane_id);
11625            assert_ne!(workspace.active_pane().entity_id(), target_last_pane_id);
11626        });
11627
11628        cx.dispatch_action(ActivateLastPane);
11629
11630        workspace.update(cx, |workspace, _| {
11631            assert_eq!(workspace.active_pane().entity_id(), target_last_pane_id);
11632        });
11633    }
11634
11635    #[gpui::test]
11636    async fn test_toggle_docks_and_panels(cx: &mut gpui::TestAppContext) {
11637        init_test(cx);
11638        let fs = FakeFs::new(cx.executor());
11639
11640        let project = Project::test(fs, [], cx).await;
11641        let (workspace, cx) =
11642            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11643
11644        let panel = workspace.update_in(cx, |workspace, window, cx| {
11645            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
11646            workspace.add_panel(panel.clone(), window, cx);
11647
11648            workspace
11649                .right_dock()
11650                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
11651
11652            panel
11653        });
11654
11655        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11656        pane.update_in(cx, |pane, window, cx| {
11657            let item = cx.new(TestItem::new);
11658            pane.add_item(Box::new(item), true, true, None, window, cx);
11659        });
11660
11661        // Transfer focus from center to panel
11662        workspace.update_in(cx, |workspace, window, cx| {
11663            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11664        });
11665
11666        workspace.update_in(cx, |workspace, window, cx| {
11667            assert!(workspace.right_dock().read(cx).is_open());
11668            assert!(!panel.is_zoomed(window, cx));
11669            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11670        });
11671
11672        // Transfer focus from panel to center
11673        workspace.update_in(cx, |workspace, window, cx| {
11674            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11675        });
11676
11677        workspace.update_in(cx, |workspace, window, cx| {
11678            assert!(workspace.right_dock().read(cx).is_open());
11679            assert!(!panel.is_zoomed(window, cx));
11680            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11681            assert!(pane.read(cx).focus_handle(cx).contains_focused(window, cx));
11682        });
11683
11684        // Close the dock
11685        workspace.update_in(cx, |workspace, window, cx| {
11686            workspace.toggle_dock(DockPosition::Right, window, cx);
11687        });
11688
11689        workspace.update_in(cx, |workspace, window, cx| {
11690            assert!(!workspace.right_dock().read(cx).is_open());
11691            assert!(!panel.is_zoomed(window, cx));
11692            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11693            assert!(pane.read(cx).focus_handle(cx).contains_focused(window, cx));
11694        });
11695
11696        // Open the dock
11697        workspace.update_in(cx, |workspace, window, cx| {
11698            workspace.toggle_dock(DockPosition::Right, window, cx);
11699        });
11700
11701        workspace.update_in(cx, |workspace, window, cx| {
11702            assert!(workspace.right_dock().read(cx).is_open());
11703            assert!(!panel.is_zoomed(window, cx));
11704            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11705        });
11706
11707        // Focus and zoom panel
11708        panel.update_in(cx, |panel, window, cx| {
11709            cx.focus_self(window);
11710            panel.set_zoomed(true, window, cx)
11711        });
11712
11713        workspace.update_in(cx, |workspace, window, cx| {
11714            assert!(workspace.right_dock().read(cx).is_open());
11715            assert!(panel.is_zoomed(window, cx));
11716            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11717        });
11718
11719        // Transfer focus to the center closes the dock
11720        workspace.update_in(cx, |workspace, window, cx| {
11721            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11722        });
11723
11724        workspace.update_in(cx, |workspace, window, cx| {
11725            assert!(!workspace.right_dock().read(cx).is_open());
11726            assert!(panel.is_zoomed(window, cx));
11727            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11728        });
11729
11730        // Transferring focus back to the panel keeps it zoomed
11731        workspace.update_in(cx, |workspace, window, cx| {
11732            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11733        });
11734
11735        workspace.update_in(cx, |workspace, window, cx| {
11736            assert!(workspace.right_dock().read(cx).is_open());
11737            assert!(panel.is_zoomed(window, cx));
11738            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11739        });
11740
11741        // Close the dock while it is zoomed
11742        workspace.update_in(cx, |workspace, window, cx| {
11743            workspace.toggle_dock(DockPosition::Right, window, cx)
11744        });
11745
11746        workspace.update_in(cx, |workspace, window, cx| {
11747            assert!(!workspace.right_dock().read(cx).is_open());
11748            assert!(panel.is_zoomed(window, cx));
11749            assert!(workspace.zoomed.is_none());
11750            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11751        });
11752
11753        // Opening the dock, when it's zoomed, retains focus
11754        workspace.update_in(cx, |workspace, window, cx| {
11755            workspace.toggle_dock(DockPosition::Right, window, cx)
11756        });
11757
11758        workspace.update_in(cx, |workspace, window, cx| {
11759            assert!(workspace.right_dock().read(cx).is_open());
11760            assert!(panel.is_zoomed(window, cx));
11761            assert!(workspace.zoomed.is_some());
11762            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11763        });
11764
11765        // Unzoom and close the panel, zoom the active pane.
11766        panel.update_in(cx, |panel, window, cx| panel.set_zoomed(false, window, cx));
11767        workspace.update_in(cx, |workspace, window, cx| {
11768            workspace.toggle_dock(DockPosition::Right, window, cx)
11769        });
11770        pane.update_in(cx, |pane, window, cx| {
11771            pane.toggle_zoom(&Default::default(), window, cx)
11772        });
11773
11774        // Opening a dock unzooms the pane.
11775        workspace.update_in(cx, |workspace, window, cx| {
11776            workspace.toggle_dock(DockPosition::Right, window, cx)
11777        });
11778        workspace.update_in(cx, |workspace, window, cx| {
11779            let pane = pane.read(cx);
11780            assert!(!pane.is_zoomed());
11781            assert!(!pane.focus_handle(cx).is_focused(window));
11782            assert!(workspace.right_dock().read(cx).is_open());
11783            assert!(workspace.zoomed.is_none());
11784        });
11785    }
11786
11787    #[gpui::test]
11788    async fn test_close_panel_on_toggle(cx: &mut gpui::TestAppContext) {
11789        init_test(cx);
11790        let fs = FakeFs::new(cx.executor());
11791
11792        let project = Project::test(fs, [], cx).await;
11793        let (workspace, cx) =
11794            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11795
11796        let panel = workspace.update_in(cx, |workspace, window, cx| {
11797            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
11798            workspace.add_panel(panel.clone(), window, cx);
11799            panel
11800        });
11801
11802        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11803        pane.update_in(cx, |pane, window, cx| {
11804            let item = cx.new(TestItem::new);
11805            pane.add_item(Box::new(item), true, true, None, window, cx);
11806        });
11807
11808        // Enable close_panel_on_toggle
11809        cx.update_global(|store: &mut SettingsStore, cx| {
11810            store.update_user_settings(cx, |settings| {
11811                settings.workspace.close_panel_on_toggle = Some(true);
11812            });
11813        });
11814
11815        // Panel starts closed. Toggling should open and focus it.
11816        workspace.update_in(cx, |workspace, window, cx| {
11817            assert!(!workspace.right_dock().read(cx).is_open());
11818            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11819        });
11820
11821        workspace.update_in(cx, |workspace, window, cx| {
11822            assert!(
11823                workspace.right_dock().read(cx).is_open(),
11824                "Dock should be open after toggling from center"
11825            );
11826            assert!(
11827                panel.read(cx).focus_handle(cx).contains_focused(window, cx),
11828                "Panel should be focused after toggling from center"
11829            );
11830        });
11831
11832        // Panel is open and focused. Toggling should close the panel and
11833        // return focus to the center.
11834        workspace.update_in(cx, |workspace, window, cx| {
11835            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11836        });
11837
11838        workspace.update_in(cx, |workspace, window, cx| {
11839            assert!(
11840                !workspace.right_dock().read(cx).is_open(),
11841                "Dock should be closed after toggling from focused panel"
11842            );
11843            assert!(
11844                !panel.read(cx).focus_handle(cx).contains_focused(window, cx),
11845                "Panel should not be focused after toggling from focused panel"
11846            );
11847        });
11848
11849        // Open the dock and focus something else so the panel is open but not
11850        // focused. Toggling should focus the panel (not close it).
11851        workspace.update_in(cx, |workspace, window, cx| {
11852            workspace
11853                .right_dock()
11854                .update(cx, |dock, cx| dock.set_open(true, window, cx));
11855            window.focus(&pane.read(cx).focus_handle(cx), cx);
11856        });
11857
11858        workspace.update_in(cx, |workspace, window, cx| {
11859            assert!(workspace.right_dock().read(cx).is_open());
11860            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11861            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11862        });
11863
11864        workspace.update_in(cx, |workspace, window, cx| {
11865            assert!(
11866                workspace.right_dock().read(cx).is_open(),
11867                "Dock should remain open when toggling focuses an open-but-unfocused panel"
11868            );
11869            assert!(
11870                panel.read(cx).focus_handle(cx).contains_focused(window, cx),
11871                "Panel should be focused after toggling an open-but-unfocused panel"
11872            );
11873        });
11874
11875        // Now disable the setting and verify the original behavior: toggling
11876        // from a focused panel moves focus to center but leaves the dock open.
11877        cx.update_global(|store: &mut SettingsStore, cx| {
11878            store.update_user_settings(cx, |settings| {
11879                settings.workspace.close_panel_on_toggle = Some(false);
11880            });
11881        });
11882
11883        workspace.update_in(cx, |workspace, window, cx| {
11884            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11885        });
11886
11887        workspace.update_in(cx, |workspace, window, cx| {
11888            assert!(
11889                workspace.right_dock().read(cx).is_open(),
11890                "Dock should remain open when setting is disabled"
11891            );
11892            assert!(
11893                !panel.read(cx).focus_handle(cx).contains_focused(window, cx),
11894                "Panel should not be focused after toggling with setting disabled"
11895            );
11896        });
11897    }
11898
11899    #[gpui::test]
11900    async fn test_pane_zoom_in_out(cx: &mut TestAppContext) {
11901        init_test(cx);
11902        let fs = FakeFs::new(cx.executor());
11903
11904        let project = Project::test(fs, [], cx).await;
11905        let (workspace, cx) =
11906            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11907
11908        let pane = workspace.update_in(cx, |workspace, _window, _cx| {
11909            workspace.active_pane().clone()
11910        });
11911
11912        // Add an item to the pane so it can be zoomed
11913        workspace.update_in(cx, |workspace, window, cx| {
11914            let item = cx.new(TestItem::new);
11915            workspace.add_item(pane.clone(), Box::new(item), None, true, true, window, cx);
11916        });
11917
11918        // Initially not zoomed
11919        workspace.update_in(cx, |workspace, _window, cx| {
11920            assert!(!pane.read(cx).is_zoomed(), "Pane starts unzoomed");
11921            assert!(
11922                workspace.zoomed.is_none(),
11923                "Workspace should track no zoomed pane"
11924            );
11925            assert!(pane.read(cx).items_len() > 0, "Pane should have items");
11926        });
11927
11928        // Zoom In
11929        pane.update_in(cx, |pane, window, cx| {
11930            pane.zoom_in(&crate::ZoomIn, window, cx);
11931        });
11932
11933        workspace.update_in(cx, |workspace, window, cx| {
11934            assert!(
11935                pane.read(cx).is_zoomed(),
11936                "Pane should be zoomed after ZoomIn"
11937            );
11938            assert!(
11939                workspace.zoomed.is_some(),
11940                "Workspace should track the zoomed pane"
11941            );
11942            assert!(
11943                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
11944                "ZoomIn should focus the pane"
11945            );
11946        });
11947
11948        // Zoom In again is a no-op
11949        pane.update_in(cx, |pane, window, cx| {
11950            pane.zoom_in(&crate::ZoomIn, window, cx);
11951        });
11952
11953        workspace.update_in(cx, |workspace, window, cx| {
11954            assert!(pane.read(cx).is_zoomed(), "Second ZoomIn keeps pane zoomed");
11955            assert!(
11956                workspace.zoomed.is_some(),
11957                "Workspace still tracks zoomed pane"
11958            );
11959            assert!(
11960                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
11961                "Pane remains focused after repeated ZoomIn"
11962            );
11963        });
11964
11965        // Zoom Out
11966        pane.update_in(cx, |pane, window, cx| {
11967            pane.zoom_out(&crate::ZoomOut, window, cx);
11968        });
11969
11970        workspace.update_in(cx, |workspace, _window, cx| {
11971            assert!(
11972                !pane.read(cx).is_zoomed(),
11973                "Pane should unzoom after ZoomOut"
11974            );
11975            assert!(
11976                workspace.zoomed.is_none(),
11977                "Workspace clears zoom tracking after ZoomOut"
11978            );
11979        });
11980
11981        // Zoom Out again is a no-op
11982        pane.update_in(cx, |pane, window, cx| {
11983            pane.zoom_out(&crate::ZoomOut, window, cx);
11984        });
11985
11986        workspace.update_in(cx, |workspace, _window, cx| {
11987            assert!(
11988                !pane.read(cx).is_zoomed(),
11989                "Second ZoomOut keeps pane unzoomed"
11990            );
11991            assert!(
11992                workspace.zoomed.is_none(),
11993                "Workspace remains without zoomed pane"
11994            );
11995        });
11996    }
11997
11998    #[gpui::test]
11999    async fn test_toggle_all_docks(cx: &mut gpui::TestAppContext) {
12000        init_test(cx);
12001        let fs = FakeFs::new(cx.executor());
12002
12003        let project = Project::test(fs, [], cx).await;
12004        let (workspace, cx) =
12005            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12006        workspace.update_in(cx, |workspace, window, cx| {
12007            // Open two docks
12008            let left_dock = workspace.dock_at_position(DockPosition::Left);
12009            let right_dock = workspace.dock_at_position(DockPosition::Right);
12010
12011            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
12012            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
12013
12014            assert!(left_dock.read(cx).is_open());
12015            assert!(right_dock.read(cx).is_open());
12016        });
12017
12018        workspace.update_in(cx, |workspace, window, cx| {
12019            // Toggle all docks - should close both
12020            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
12021
12022            let left_dock = workspace.dock_at_position(DockPosition::Left);
12023            let right_dock = workspace.dock_at_position(DockPosition::Right);
12024            assert!(!left_dock.read(cx).is_open());
12025            assert!(!right_dock.read(cx).is_open());
12026        });
12027
12028        workspace.update_in(cx, |workspace, window, cx| {
12029            // Toggle again - should reopen both
12030            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
12031
12032            let left_dock = workspace.dock_at_position(DockPosition::Left);
12033            let right_dock = workspace.dock_at_position(DockPosition::Right);
12034            assert!(left_dock.read(cx).is_open());
12035            assert!(right_dock.read(cx).is_open());
12036        });
12037    }
12038
12039    #[gpui::test]
12040    async fn test_toggle_all_with_manual_close(cx: &mut gpui::TestAppContext) {
12041        init_test(cx);
12042        let fs = FakeFs::new(cx.executor());
12043
12044        let project = Project::test(fs, [], cx).await;
12045        let (workspace, cx) =
12046            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12047        workspace.update_in(cx, |workspace, window, cx| {
12048            // Open two docks
12049            let left_dock = workspace.dock_at_position(DockPosition::Left);
12050            let right_dock = workspace.dock_at_position(DockPosition::Right);
12051
12052            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
12053            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
12054
12055            assert!(left_dock.read(cx).is_open());
12056            assert!(right_dock.read(cx).is_open());
12057        });
12058
12059        workspace.update_in(cx, |workspace, window, cx| {
12060            // Close them manually
12061            workspace.toggle_dock(DockPosition::Left, window, cx);
12062            workspace.toggle_dock(DockPosition::Right, window, cx);
12063
12064            let left_dock = workspace.dock_at_position(DockPosition::Left);
12065            let right_dock = workspace.dock_at_position(DockPosition::Right);
12066            assert!(!left_dock.read(cx).is_open());
12067            assert!(!right_dock.read(cx).is_open());
12068        });
12069
12070        workspace.update_in(cx, |workspace, window, cx| {
12071            // Toggle all docks - only last closed (right dock) should reopen
12072            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
12073
12074            let left_dock = workspace.dock_at_position(DockPosition::Left);
12075            let right_dock = workspace.dock_at_position(DockPosition::Right);
12076            assert!(!left_dock.read(cx).is_open());
12077            assert!(right_dock.read(cx).is_open());
12078        });
12079    }
12080
12081    #[gpui::test]
12082    async fn test_toggle_all_docks_after_dock_move(cx: &mut gpui::TestAppContext) {
12083        init_test(cx);
12084        let fs = FakeFs::new(cx.executor());
12085        let project = Project::test(fs, [], cx).await;
12086        let (multi_workspace, cx) =
12087            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
12088        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
12089
12090        // Open two docks (left and right) with one panel each
12091        let (left_panel, right_panel) = workspace.update_in(cx, |workspace, window, cx| {
12092            let left_panel = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
12093            workspace.add_panel(left_panel.clone(), window, cx);
12094
12095            let right_panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
12096            workspace.add_panel(right_panel.clone(), window, cx);
12097
12098            workspace.toggle_dock(DockPosition::Left, window, cx);
12099            workspace.toggle_dock(DockPosition::Right, window, cx);
12100
12101            // Verify initial state
12102            assert!(
12103                workspace.left_dock().read(cx).is_open(),
12104                "Left dock should be open"
12105            );
12106            assert_eq!(
12107                workspace
12108                    .left_dock()
12109                    .read(cx)
12110                    .visible_panel()
12111                    .unwrap()
12112                    .panel_id(),
12113                left_panel.panel_id(),
12114                "Left panel should be visible in left dock"
12115            );
12116            assert!(
12117                workspace.right_dock().read(cx).is_open(),
12118                "Right dock should be open"
12119            );
12120            assert_eq!(
12121                workspace
12122                    .right_dock()
12123                    .read(cx)
12124                    .visible_panel()
12125                    .unwrap()
12126                    .panel_id(),
12127                right_panel.panel_id(),
12128                "Right panel should be visible in right dock"
12129            );
12130            assert!(
12131                !workspace.bottom_dock().read(cx).is_open(),
12132                "Bottom dock should be closed"
12133            );
12134
12135            (left_panel, right_panel)
12136        });
12137
12138        // Focus the left panel and move it to the next position (bottom dock)
12139        workspace.update_in(cx, |workspace, window, cx| {
12140            workspace.toggle_panel_focus::<TestPanel>(window, cx); // Focus left panel
12141            assert!(
12142                left_panel.read(cx).focus_handle(cx).is_focused(window),
12143                "Left panel should be focused"
12144            );
12145        });
12146
12147        cx.dispatch_action(MoveFocusedPanelToNextPosition);
12148
12149        // Verify the left panel has moved to the bottom dock, and the bottom dock is now open
12150        workspace.update(cx, |workspace, cx| {
12151            assert!(
12152                !workspace.left_dock().read(cx).is_open(),
12153                "Left dock should be closed"
12154            );
12155            assert!(
12156                workspace.bottom_dock().read(cx).is_open(),
12157                "Bottom dock should now be open"
12158            );
12159            assert_eq!(
12160                left_panel.read(cx).position,
12161                DockPosition::Bottom,
12162                "Left panel should now be in the bottom dock"
12163            );
12164            assert_eq!(
12165                workspace
12166                    .bottom_dock()
12167                    .read(cx)
12168                    .visible_panel()
12169                    .unwrap()
12170                    .panel_id(),
12171                left_panel.panel_id(),
12172                "Left panel should be the visible panel in the bottom dock"
12173            );
12174        });
12175
12176        // Toggle all docks off
12177        workspace.update_in(cx, |workspace, window, cx| {
12178            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
12179            assert!(
12180                !workspace.left_dock().read(cx).is_open(),
12181                "Left dock should be closed"
12182            );
12183            assert!(
12184                !workspace.right_dock().read(cx).is_open(),
12185                "Right dock should be closed"
12186            );
12187            assert!(
12188                !workspace.bottom_dock().read(cx).is_open(),
12189                "Bottom dock should be closed"
12190            );
12191        });
12192
12193        // Toggle all docks back on and verify positions are restored
12194        workspace.update_in(cx, |workspace, window, cx| {
12195            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
12196            assert!(
12197                !workspace.left_dock().read(cx).is_open(),
12198                "Left dock should remain closed"
12199            );
12200            assert!(
12201                workspace.right_dock().read(cx).is_open(),
12202                "Right dock should remain open"
12203            );
12204            assert!(
12205                workspace.bottom_dock().read(cx).is_open(),
12206                "Bottom dock should remain open"
12207            );
12208            assert_eq!(
12209                left_panel.read(cx).position,
12210                DockPosition::Bottom,
12211                "Left panel should remain in the bottom dock"
12212            );
12213            assert_eq!(
12214                right_panel.read(cx).position,
12215                DockPosition::Right,
12216                "Right panel should remain in the right dock"
12217            );
12218            assert_eq!(
12219                workspace
12220                    .bottom_dock()
12221                    .read(cx)
12222                    .visible_panel()
12223                    .unwrap()
12224                    .panel_id(),
12225                left_panel.panel_id(),
12226                "Left panel should be the visible panel in the right dock"
12227            );
12228        });
12229    }
12230
12231    #[gpui::test]
12232    async fn test_join_pane_into_next(cx: &mut gpui::TestAppContext) {
12233        init_test(cx);
12234
12235        let fs = FakeFs::new(cx.executor());
12236
12237        let project = Project::test(fs, None, cx).await;
12238        let (workspace, cx) =
12239            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12240
12241        // Let's arrange the panes like this:
12242        //
12243        // +-----------------------+
12244        // |         top           |
12245        // +------+--------+-------+
12246        // | left | center | right |
12247        // +------+--------+-------+
12248        // |        bottom         |
12249        // +-----------------------+
12250
12251        let top_item = cx.new(|cx| {
12252            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "top.txt", cx)])
12253        });
12254        let bottom_item = cx.new(|cx| {
12255            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "bottom.txt", cx)])
12256        });
12257        let left_item = cx.new(|cx| {
12258            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "left.txt", cx)])
12259        });
12260        let right_item = cx.new(|cx| {
12261            TestItem::new(cx).with_project_items(&[TestProjectItem::new(4, "right.txt", cx)])
12262        });
12263        let center_item = cx.new(|cx| {
12264            TestItem::new(cx).with_project_items(&[TestProjectItem::new(5, "center.txt", cx)])
12265        });
12266
12267        let top_pane_id = workspace.update_in(cx, |workspace, window, cx| {
12268            let top_pane_id = workspace.active_pane().entity_id();
12269            workspace.add_item_to_active_pane(Box::new(top_item.clone()), None, false, window, cx);
12270            workspace.split_pane(
12271                workspace.active_pane().clone(),
12272                SplitDirection::Down,
12273                window,
12274                cx,
12275            );
12276            top_pane_id
12277        });
12278        let bottom_pane_id = workspace.update_in(cx, |workspace, window, cx| {
12279            let bottom_pane_id = workspace.active_pane().entity_id();
12280            workspace.add_item_to_active_pane(
12281                Box::new(bottom_item.clone()),
12282                None,
12283                false,
12284                window,
12285                cx,
12286            );
12287            workspace.split_pane(
12288                workspace.active_pane().clone(),
12289                SplitDirection::Up,
12290                window,
12291                cx,
12292            );
12293            bottom_pane_id
12294        });
12295        let left_pane_id = workspace.update_in(cx, |workspace, window, cx| {
12296            let left_pane_id = workspace.active_pane().entity_id();
12297            workspace.add_item_to_active_pane(Box::new(left_item.clone()), None, false, window, cx);
12298            workspace.split_pane(
12299                workspace.active_pane().clone(),
12300                SplitDirection::Right,
12301                window,
12302                cx,
12303            );
12304            left_pane_id
12305        });
12306        let right_pane_id = workspace.update_in(cx, |workspace, window, cx| {
12307            let right_pane_id = workspace.active_pane().entity_id();
12308            workspace.add_item_to_active_pane(
12309                Box::new(right_item.clone()),
12310                None,
12311                false,
12312                window,
12313                cx,
12314            );
12315            workspace.split_pane(
12316                workspace.active_pane().clone(),
12317                SplitDirection::Left,
12318                window,
12319                cx,
12320            );
12321            right_pane_id
12322        });
12323        let center_pane_id = workspace.update_in(cx, |workspace, window, cx| {
12324            let center_pane_id = workspace.active_pane().entity_id();
12325            workspace.add_item_to_active_pane(
12326                Box::new(center_item.clone()),
12327                None,
12328                false,
12329                window,
12330                cx,
12331            );
12332            center_pane_id
12333        });
12334        cx.executor().run_until_parked();
12335
12336        workspace.update_in(cx, |workspace, window, cx| {
12337            assert_eq!(center_pane_id, workspace.active_pane().entity_id());
12338
12339            // Join into next from center pane into right
12340            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
12341        });
12342
12343        workspace.update_in(cx, |workspace, window, cx| {
12344            let active_pane = workspace.active_pane();
12345            assert_eq!(right_pane_id, active_pane.entity_id());
12346            assert_eq!(2, active_pane.read(cx).items_len());
12347            let item_ids_in_pane =
12348                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
12349            assert!(item_ids_in_pane.contains(&center_item.item_id()));
12350            assert!(item_ids_in_pane.contains(&right_item.item_id()));
12351
12352            // Join into next from right pane into bottom
12353            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
12354        });
12355
12356        workspace.update_in(cx, |workspace, window, cx| {
12357            let active_pane = workspace.active_pane();
12358            assert_eq!(bottom_pane_id, active_pane.entity_id());
12359            assert_eq!(3, active_pane.read(cx).items_len());
12360            let item_ids_in_pane =
12361                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
12362            assert!(item_ids_in_pane.contains(&center_item.item_id()));
12363            assert!(item_ids_in_pane.contains(&right_item.item_id()));
12364            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
12365
12366            // Join into next from bottom pane into left
12367            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
12368        });
12369
12370        workspace.update_in(cx, |workspace, window, cx| {
12371            let active_pane = workspace.active_pane();
12372            assert_eq!(left_pane_id, active_pane.entity_id());
12373            assert_eq!(4, active_pane.read(cx).items_len());
12374            let item_ids_in_pane =
12375                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
12376            assert!(item_ids_in_pane.contains(&center_item.item_id()));
12377            assert!(item_ids_in_pane.contains(&right_item.item_id()));
12378            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
12379            assert!(item_ids_in_pane.contains(&left_item.item_id()));
12380
12381            // Join into next from left pane into top
12382            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
12383        });
12384
12385        workspace.update_in(cx, |workspace, window, cx| {
12386            let active_pane = workspace.active_pane();
12387            assert_eq!(top_pane_id, active_pane.entity_id());
12388            assert_eq!(5, active_pane.read(cx).items_len());
12389            let item_ids_in_pane =
12390                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
12391            assert!(item_ids_in_pane.contains(&center_item.item_id()));
12392            assert!(item_ids_in_pane.contains(&right_item.item_id()));
12393            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
12394            assert!(item_ids_in_pane.contains(&left_item.item_id()));
12395            assert!(item_ids_in_pane.contains(&top_item.item_id()));
12396
12397            // Single pane left: no-op
12398            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx)
12399        });
12400
12401        workspace.update(cx, |workspace, _cx| {
12402            let active_pane = workspace.active_pane();
12403            assert_eq!(top_pane_id, active_pane.entity_id());
12404        });
12405    }
12406
12407    fn add_an_item_to_active_pane(
12408        cx: &mut VisualTestContext,
12409        workspace: &Entity<Workspace>,
12410        item_id: u64,
12411    ) -> Entity<TestItem> {
12412        let item = cx.new(|cx| {
12413            TestItem::new(cx).with_project_items(&[TestProjectItem::new(
12414                item_id,
12415                "item{item_id}.txt",
12416                cx,
12417            )])
12418        });
12419        workspace.update_in(cx, |workspace, window, cx| {
12420            workspace.add_item_to_active_pane(Box::new(item.clone()), None, false, window, cx);
12421        });
12422        item
12423    }
12424
12425    fn split_pane(cx: &mut VisualTestContext, workspace: &Entity<Workspace>) -> Entity<Pane> {
12426        workspace.update_in(cx, |workspace, window, cx| {
12427            workspace.split_pane(
12428                workspace.active_pane().clone(),
12429                SplitDirection::Right,
12430                window,
12431                cx,
12432            )
12433        })
12434    }
12435
12436    #[gpui::test]
12437    async fn test_join_all_panes(cx: &mut gpui::TestAppContext) {
12438        init_test(cx);
12439        let fs = FakeFs::new(cx.executor());
12440        let project = Project::test(fs, None, cx).await;
12441        let (workspace, cx) =
12442            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12443
12444        add_an_item_to_active_pane(cx, &workspace, 1);
12445        split_pane(cx, &workspace);
12446        add_an_item_to_active_pane(cx, &workspace, 2);
12447        split_pane(cx, &workspace); // empty pane
12448        split_pane(cx, &workspace);
12449        let last_item = add_an_item_to_active_pane(cx, &workspace, 3);
12450
12451        cx.executor().run_until_parked();
12452
12453        workspace.update(cx, |workspace, cx| {
12454            let num_panes = workspace.panes().len();
12455            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
12456            let active_item = workspace
12457                .active_pane()
12458                .read(cx)
12459                .active_item()
12460                .expect("item is in focus");
12461
12462            assert_eq!(num_panes, 4);
12463            assert_eq!(num_items_in_current_pane, 1);
12464            assert_eq!(active_item.item_id(), last_item.item_id());
12465        });
12466
12467        workspace.update_in(cx, |workspace, window, cx| {
12468            workspace.join_all_panes(window, cx);
12469        });
12470
12471        workspace.update(cx, |workspace, cx| {
12472            let num_panes = workspace.panes().len();
12473            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
12474            let active_item = workspace
12475                .active_pane()
12476                .read(cx)
12477                .active_item()
12478                .expect("item is in focus");
12479
12480            assert_eq!(num_panes, 1);
12481            assert_eq!(num_items_in_current_pane, 3);
12482            assert_eq!(active_item.item_id(), last_item.item_id());
12483        });
12484    }
12485
12486    #[gpui::test]
12487    async fn test_flexible_dock_sizing(cx: &mut gpui::TestAppContext) {
12488        init_test(cx);
12489        let fs = FakeFs::new(cx.executor());
12490
12491        let project = Project::test(fs, [], cx).await;
12492        let (multi_workspace, cx) =
12493            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
12494        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
12495
12496        workspace.update(cx, |workspace, _cx| {
12497            workspace.bounds.size.width = px(800.);
12498        });
12499
12500        workspace.update_in(cx, |workspace, window, cx| {
12501            let panel = cx.new(|cx| TestPanel::new_flexible(DockPosition::Right, 100, cx));
12502            workspace.add_panel(panel, window, cx);
12503            workspace.toggle_dock(DockPosition::Right, window, cx);
12504        });
12505
12506        let (panel, resized_width, ratio_basis_width) =
12507            workspace.update_in(cx, |workspace, window, cx| {
12508                let item = cx.new(|cx| {
12509                    TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
12510                });
12511                workspace.add_item_to_active_pane(Box::new(item), None, true, window, cx);
12512
12513                let dock = workspace.right_dock().read(cx);
12514                let workspace_width = workspace.bounds.size.width;
12515                let initial_width = workspace
12516                    .dock_size(&dock, window, cx)
12517                    .expect("flexible dock should have an initial width");
12518
12519                assert_eq!(initial_width, workspace_width / 2.);
12520
12521                workspace.resize_right_dock(px(300.), window, cx);
12522
12523                let dock = workspace.right_dock().read(cx);
12524                let resized_width = workspace
12525                    .dock_size(&dock, window, cx)
12526                    .expect("flexible dock should keep its resized width");
12527
12528                assert_eq!(resized_width, px(300.));
12529
12530                let panel = workspace
12531                    .right_dock()
12532                    .read(cx)
12533                    .visible_panel()
12534                    .expect("flexible dock should have a visible panel")
12535                    .panel_id();
12536
12537                (panel, resized_width, workspace_width)
12538            });
12539
12540        workspace.update_in(cx, |workspace, window, cx| {
12541            workspace.toggle_dock(DockPosition::Right, window, cx);
12542            workspace.toggle_dock(DockPosition::Right, window, cx);
12543
12544            let dock = workspace.right_dock().read(cx);
12545            let reopened_width = workspace
12546                .dock_size(&dock, window, cx)
12547                .expect("flexible dock should restore when reopened");
12548
12549            assert_eq!(reopened_width, resized_width);
12550
12551            let right_dock = workspace.right_dock().read(cx);
12552            let flexible_panel = right_dock
12553                .visible_panel()
12554                .expect("flexible dock should still have a visible panel");
12555            assert_eq!(flexible_panel.panel_id(), panel);
12556            assert_eq!(
12557                right_dock
12558                    .stored_panel_size_state(flexible_panel.as_ref())
12559                    .and_then(|size_state| size_state.flex),
12560                Some(
12561                    resized_width.to_f64() as f32
12562                        / (workspace.bounds.size.width - resized_width).to_f64() as f32
12563                )
12564            );
12565        });
12566
12567        workspace.update_in(cx, |workspace, window, cx| {
12568            workspace.split_pane(
12569                workspace.active_pane().clone(),
12570                SplitDirection::Right,
12571                window,
12572                cx,
12573            );
12574
12575            let dock = workspace.right_dock().read(cx);
12576            let split_width = workspace
12577                .dock_size(&dock, window, cx)
12578                .expect("flexible dock should keep its user-resized proportion");
12579
12580            assert_eq!(split_width, px(300.));
12581
12582            workspace.bounds.size.width = px(1600.);
12583
12584            let dock = workspace.right_dock().read(cx);
12585            let resized_window_width = workspace
12586                .dock_size(&dock, window, cx)
12587                .expect("flexible dock should preserve proportional size on window resize");
12588
12589            assert_eq!(
12590                resized_window_width,
12591                workspace.bounds.size.width
12592                    * (resized_width.to_f64() as f32 / ratio_basis_width.to_f64() as f32)
12593            );
12594        });
12595    }
12596
12597    #[gpui::test]
12598    async fn test_panel_size_state_persistence(cx: &mut gpui::TestAppContext) {
12599        init_test(cx);
12600        let fs = FakeFs::new(cx.executor());
12601
12602        // Fixed-width panel: pixel size is persisted to KVP and restored on re-add.
12603        {
12604            let project = Project::test(fs.clone(), [], cx).await;
12605            let (multi_workspace, cx) =
12606                cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
12607            let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
12608
12609            workspace.update(cx, |workspace, _cx| {
12610                workspace.set_random_database_id();
12611                workspace.bounds.size.width = px(800.);
12612            });
12613
12614            let panel = workspace.update_in(cx, |workspace, window, cx| {
12615                let panel = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
12616                workspace.add_panel(panel.clone(), window, cx);
12617                workspace.toggle_dock(DockPosition::Left, window, cx);
12618                panel
12619            });
12620
12621            workspace.update_in(cx, |workspace, window, cx| {
12622                workspace.resize_left_dock(px(350.), window, cx);
12623            });
12624
12625            cx.run_until_parked();
12626
12627            let persisted = workspace.read_with(cx, |workspace, cx| {
12628                workspace.persisted_panel_size_state(TestPanel::panel_key(), cx)
12629            });
12630            assert_eq!(
12631                persisted.and_then(|s| s.size),
12632                Some(px(350.)),
12633                "fixed-width panel size should be persisted to KVP"
12634            );
12635
12636            // Remove the panel and re-add a fresh instance with the same key.
12637            // The new instance should have its size state restored from KVP.
12638            workspace.update_in(cx, |workspace, window, cx| {
12639                workspace.remove_panel(&panel, window, cx);
12640            });
12641
12642            workspace.update_in(cx, |workspace, window, cx| {
12643                let new_panel = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
12644                workspace.add_panel(new_panel, window, cx);
12645
12646                let left_dock = workspace.left_dock().read(cx);
12647                let size_state = left_dock
12648                    .panel::<TestPanel>()
12649                    .and_then(|p| left_dock.stored_panel_size_state(&p));
12650                assert_eq!(
12651                    size_state.and_then(|s| s.size),
12652                    Some(px(350.)),
12653                    "re-added fixed-width panel should restore persisted size from KVP"
12654                );
12655            });
12656        }
12657
12658        // Flexible panel: both pixel size and ratio are persisted and restored.
12659        {
12660            let project = Project::test(fs.clone(), [], cx).await;
12661            let (multi_workspace, cx) =
12662                cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
12663            let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
12664
12665            workspace.update(cx, |workspace, _cx| {
12666                workspace.set_random_database_id();
12667                workspace.bounds.size.width = px(800.);
12668            });
12669
12670            let panel = workspace.update_in(cx, |workspace, window, cx| {
12671                let item = cx.new(|cx| {
12672                    TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
12673                });
12674                workspace.add_item_to_active_pane(Box::new(item), None, true, window, cx);
12675
12676                let panel = cx.new(|cx| TestPanel::new_flexible(DockPosition::Right, 100, cx));
12677                workspace.add_panel(panel.clone(), window, cx);
12678                workspace.toggle_dock(DockPosition::Right, window, cx);
12679                panel
12680            });
12681
12682            workspace.update_in(cx, |workspace, window, cx| {
12683                workspace.resize_right_dock(px(300.), window, cx);
12684            });
12685
12686            cx.run_until_parked();
12687
12688            let persisted = workspace
12689                .read_with(cx, |workspace, cx| {
12690                    workspace.persisted_panel_size_state(TestPanel::panel_key(), cx)
12691                })
12692                .expect("flexible panel state should be persisted to KVP");
12693            assert_eq!(
12694                persisted.size, None,
12695                "flexible panel should not persist a redundant pixel size"
12696            );
12697            let original_ratio = persisted.flex.expect("panel's flex should be persisted");
12698
12699            // Remove the panel and re-add: both size and ratio should be restored.
12700            workspace.update_in(cx, |workspace, window, cx| {
12701                workspace.remove_panel(&panel, window, cx);
12702            });
12703
12704            workspace.update_in(cx, |workspace, window, cx| {
12705                let new_panel = cx.new(|cx| TestPanel::new_flexible(DockPosition::Right, 100, cx));
12706                workspace.add_panel(new_panel, window, cx);
12707
12708                let right_dock = workspace.right_dock().read(cx);
12709                let size_state = right_dock
12710                    .panel::<TestPanel>()
12711                    .and_then(|p| right_dock.stored_panel_size_state(&p))
12712                    .expect("re-added flexible panel should have restored size state from KVP");
12713                assert_eq!(
12714                    size_state.size, None,
12715                    "re-added flexible panel should not have a persisted pixel size"
12716                );
12717                assert_eq!(
12718                    size_state.flex,
12719                    Some(original_ratio),
12720                    "re-added flexible panel should restore persisted flex"
12721                );
12722            });
12723        }
12724    }
12725
12726    #[gpui::test]
12727    async fn test_flexible_panel_left_dock_sizing(cx: &mut gpui::TestAppContext) {
12728        init_test(cx);
12729        let fs = FakeFs::new(cx.executor());
12730
12731        let project = Project::test(fs, [], cx).await;
12732        let (multi_workspace, cx) =
12733            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
12734        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
12735
12736        workspace.update(cx, |workspace, _cx| {
12737            workspace.bounds.size.width = px(900.);
12738        });
12739
12740        // Step 1: Add a tab to the center pane then open a flexible panel in the left
12741        // dock. With one full-width center pane the default ratio is 0.5, so the panel
12742        // and the center pane each take half the workspace width.
12743        workspace.update_in(cx, |workspace, window, cx| {
12744            let item = cx.new(|cx| {
12745                TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
12746            });
12747            workspace.add_item_to_active_pane(Box::new(item), None, true, window, cx);
12748
12749            let panel = cx.new(|cx| TestPanel::new_flexible(DockPosition::Left, 100, cx));
12750            workspace.add_panel(panel, window, cx);
12751            workspace.toggle_dock(DockPosition::Left, window, cx);
12752
12753            let left_dock = workspace.left_dock().read(cx);
12754            let left_width = workspace
12755                .dock_size(&left_dock, window, cx)
12756                .expect("left dock should have an active panel");
12757
12758            assert_eq!(
12759                left_width,
12760                workspace.bounds.size.width / 2.,
12761                "flexible left panel should split evenly with the center pane"
12762            );
12763        });
12764
12765        // Step 2: Split the center pane vertically (top/bottom). Vertical splits do not
12766        // change horizontal width fractions, so the flexible panel stays at the same
12767        // width as each half of the split.
12768        workspace.update_in(cx, |workspace, window, cx| {
12769            workspace.split_pane(
12770                workspace.active_pane().clone(),
12771                SplitDirection::Down,
12772                window,
12773                cx,
12774            );
12775
12776            let left_dock = workspace.left_dock().read(cx);
12777            let left_width = workspace
12778                .dock_size(&left_dock, window, cx)
12779                .expect("left dock should still have an active panel after vertical split");
12780
12781            assert_eq!(
12782                left_width,
12783                workspace.bounds.size.width / 2.,
12784                "flexible left panel width should match each vertically-split pane"
12785            );
12786        });
12787
12788        // Step 3: Open a fixed-width panel in the right dock. The right dock's default
12789        // size reduces the available width, so the flexible left panel and the center
12790        // panes all shrink proportionally to accommodate it.
12791        workspace.update_in(cx, |workspace, window, cx| {
12792            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 200, cx));
12793            workspace.add_panel(panel, window, cx);
12794            workspace.toggle_dock(DockPosition::Right, window, cx);
12795
12796            let right_dock = workspace.right_dock().read(cx);
12797            let right_width = workspace
12798                .dock_size(&right_dock, window, cx)
12799                .expect("right dock should have an active panel");
12800
12801            let left_dock = workspace.left_dock().read(cx);
12802            let left_width = workspace
12803                .dock_size(&left_dock, window, cx)
12804                .expect("left dock should still have an active panel");
12805
12806            let available_width = workspace.bounds.size.width - right_width;
12807            assert_eq!(
12808                left_width,
12809                available_width / 2.,
12810                "flexible left panel should shrink proportionally as the right dock takes space"
12811            );
12812        });
12813
12814        // Step 4: Toggle the right dock's panel to flexible. Now both docks use
12815        // flex sizing and the workspace width is divided among left-flex, center
12816        // (implicit flex 1.0), and right-flex.
12817        workspace.update_in(cx, |workspace, window, cx| {
12818            let right_dock = workspace.right_dock().clone();
12819            let right_panel = right_dock
12820                .read(cx)
12821                .visible_panel()
12822                .expect("right dock should have a visible panel")
12823                .clone();
12824            workspace.toggle_dock_panel_flexible_size(
12825                &right_dock,
12826                right_panel.as_ref(),
12827                window,
12828                cx,
12829            );
12830
12831            let right_dock = right_dock.read(cx);
12832            let right_panel = right_dock
12833                .visible_panel()
12834                .expect("right dock should still have a visible panel");
12835            assert!(
12836                right_panel.has_flexible_size(window, cx),
12837                "right panel should now be flexible"
12838            );
12839
12840            let right_size_state = right_dock
12841                .stored_panel_size_state(right_panel.as_ref())
12842                .expect("right panel should have a stored size state after toggling");
12843            let right_flex = right_size_state
12844                .flex
12845                .expect("right panel should have a flex value after toggling");
12846
12847            let left_dock = workspace.left_dock().read(cx);
12848            let left_width = workspace
12849                .dock_size(&left_dock, window, cx)
12850                .expect("left dock should still have an active panel");
12851            let right_width = workspace
12852                .dock_size(&right_dock, window, cx)
12853                .expect("right dock should still have an active panel");
12854
12855            let left_flex = workspace
12856                .default_dock_flex(DockPosition::Left)
12857                .expect("left dock should have a default flex");
12858
12859            let total_flex = left_flex + 1.0 + right_flex;
12860            let expected_left = left_flex / total_flex * workspace.bounds.size.width;
12861            let expected_right = right_flex / total_flex * workspace.bounds.size.width;
12862            assert_eq!(
12863                left_width, expected_left,
12864                "flexible left panel should share workspace width via flex ratios"
12865            );
12866            assert_eq!(
12867                right_width, expected_right,
12868                "flexible right panel should share workspace width via flex ratios"
12869            );
12870        });
12871    }
12872
12873    struct TestModal(FocusHandle);
12874
12875    impl TestModal {
12876        fn new(_: &mut Window, cx: &mut Context<Self>) -> Self {
12877            Self(cx.focus_handle())
12878        }
12879    }
12880
12881    impl EventEmitter<DismissEvent> for TestModal {}
12882
12883    impl Focusable for TestModal {
12884        fn focus_handle(&self, _cx: &App) -> FocusHandle {
12885            self.0.clone()
12886        }
12887    }
12888
12889    impl ModalView for TestModal {}
12890
12891    impl Render for TestModal {
12892        fn render(
12893            &mut self,
12894            _window: &mut Window,
12895            _cx: &mut Context<TestModal>,
12896        ) -> impl IntoElement {
12897            div().track_focus(&self.0)
12898        }
12899    }
12900
12901    #[gpui::test]
12902    async fn test_panels(cx: &mut gpui::TestAppContext) {
12903        init_test(cx);
12904        let fs = FakeFs::new(cx.executor());
12905
12906        let project = Project::test(fs, [], cx).await;
12907        let (multi_workspace, cx) =
12908            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
12909        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
12910
12911        let (panel_1, panel_2) = workspace.update_in(cx, |workspace, window, cx| {
12912            let panel_1 = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
12913            workspace.add_panel(panel_1.clone(), window, cx);
12914            workspace.toggle_dock(DockPosition::Left, window, cx);
12915            let panel_2 = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
12916            workspace.add_panel(panel_2.clone(), window, cx);
12917            workspace.toggle_dock(DockPosition::Right, window, cx);
12918
12919            let left_dock = workspace.left_dock();
12920            assert_eq!(
12921                left_dock.read(cx).visible_panel().unwrap().panel_id(),
12922                panel_1.panel_id()
12923            );
12924            assert_eq!(
12925                workspace.dock_size(&left_dock.read(cx), window, cx),
12926                Some(px(300.))
12927            );
12928
12929            workspace.resize_left_dock(px(1337.), window, cx);
12930            assert_eq!(
12931                workspace
12932                    .right_dock()
12933                    .read(cx)
12934                    .visible_panel()
12935                    .unwrap()
12936                    .panel_id(),
12937                panel_2.panel_id(),
12938            );
12939
12940            (panel_1, panel_2)
12941        });
12942
12943        // Move panel_1 to the right
12944        panel_1.update_in(cx, |panel_1, window, cx| {
12945            panel_1.set_position(DockPosition::Right, window, cx)
12946        });
12947
12948        workspace.update_in(cx, |workspace, window, cx| {
12949            // Since panel_1 was visible on the left, it should now be visible now that it's been moved to the right.
12950            // Since it was the only panel on the left, the left dock should now be closed.
12951            assert!(!workspace.left_dock().read(cx).is_open());
12952            assert!(workspace.left_dock().read(cx).visible_panel().is_none());
12953            let right_dock = workspace.right_dock();
12954            assert_eq!(
12955                right_dock.read(cx).visible_panel().unwrap().panel_id(),
12956                panel_1.panel_id()
12957            );
12958            assert_eq!(
12959                right_dock
12960                    .read(cx)
12961                    .active_panel_size()
12962                    .unwrap()
12963                    .size
12964                    .unwrap(),
12965                px(1337.)
12966            );
12967
12968            // Now we move panel_2 to the left
12969            panel_2.set_position(DockPosition::Left, window, cx);
12970        });
12971
12972        workspace.update(cx, |workspace, cx| {
12973            // Since panel_2 was not visible on the right, we don't open the left dock.
12974            assert!(!workspace.left_dock().read(cx).is_open());
12975            // And the right dock is unaffected in its displaying of panel_1
12976            assert!(workspace.right_dock().read(cx).is_open());
12977            assert_eq!(
12978                workspace
12979                    .right_dock()
12980                    .read(cx)
12981                    .visible_panel()
12982                    .unwrap()
12983                    .panel_id(),
12984                panel_1.panel_id(),
12985            );
12986        });
12987
12988        // Move panel_1 back to the left
12989        panel_1.update_in(cx, |panel_1, window, cx| {
12990            panel_1.set_position(DockPosition::Left, window, cx)
12991        });
12992
12993        workspace.update_in(cx, |workspace, window, cx| {
12994            // Since panel_1 was visible on the right, we open the left dock and make panel_1 active.
12995            let left_dock = workspace.left_dock();
12996            assert!(left_dock.read(cx).is_open());
12997            assert_eq!(
12998                left_dock.read(cx).visible_panel().unwrap().panel_id(),
12999                panel_1.panel_id()
13000            );
13001            assert_eq!(
13002                workspace.dock_size(&left_dock.read(cx), window, cx),
13003                Some(px(1337.))
13004            );
13005            // And the right dock should be closed as it no longer has any panels.
13006            assert!(!workspace.right_dock().read(cx).is_open());
13007
13008            // Now we move panel_1 to the bottom
13009            panel_1.set_position(DockPosition::Bottom, window, cx);
13010        });
13011
13012        workspace.update_in(cx, |workspace, window, cx| {
13013            // Since panel_1 was visible on the left, we close the left dock.
13014            assert!(!workspace.left_dock().read(cx).is_open());
13015            // The bottom dock is sized based on the panel's default size,
13016            // since the panel orientation changed from vertical to horizontal.
13017            let bottom_dock = workspace.bottom_dock();
13018            assert_eq!(
13019                workspace.dock_size(&bottom_dock.read(cx), window, cx),
13020                Some(px(300.))
13021            );
13022            // Close bottom dock and move panel_1 back to the left.
13023            bottom_dock.update(cx, |bottom_dock, cx| {
13024                bottom_dock.set_open(false, window, cx)
13025            });
13026            panel_1.set_position(DockPosition::Left, window, cx);
13027        });
13028
13029        // Emit activated event on panel 1
13030        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Activate));
13031
13032        // Now the left dock is open and panel_1 is active and focused.
13033        workspace.update_in(cx, |workspace, window, cx| {
13034            let left_dock = workspace.left_dock();
13035            assert!(left_dock.read(cx).is_open());
13036            assert_eq!(
13037                left_dock.read(cx).visible_panel().unwrap().panel_id(),
13038                panel_1.panel_id(),
13039            );
13040            assert!(panel_1.focus_handle(cx).is_focused(window));
13041        });
13042
13043        // Emit closed event on panel 2, which is not active
13044        panel_2.update(cx, |_, cx| cx.emit(PanelEvent::Close));
13045
13046        // Wo don't close the left dock, because panel_2 wasn't the active panel
13047        workspace.update(cx, |workspace, cx| {
13048            let left_dock = workspace.left_dock();
13049            assert!(left_dock.read(cx).is_open());
13050            assert_eq!(
13051                left_dock.read(cx).visible_panel().unwrap().panel_id(),
13052                panel_1.panel_id(),
13053            );
13054        });
13055
13056        // Emitting a ZoomIn event shows the panel as zoomed.
13057        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomIn));
13058        workspace.read_with(cx, |workspace, _| {
13059            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
13060            assert_eq!(workspace.zoomed_position, Some(DockPosition::Left));
13061        });
13062
13063        // Move panel to another dock while it is zoomed
13064        panel_1.update_in(cx, |panel, window, cx| {
13065            panel.set_position(DockPosition::Right, window, cx)
13066        });
13067        workspace.read_with(cx, |workspace, _| {
13068            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
13069
13070            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
13071        });
13072
13073        // This is a helper for getting a:
13074        // - valid focus on an element,
13075        // - that isn't a part of the panes and panels system of the Workspace,
13076        // - and doesn't trigger the 'on_focus_lost' API.
13077        let focus_other_view = {
13078            let workspace = workspace.clone();
13079            move |cx: &mut VisualTestContext| {
13080                workspace.update_in(cx, |workspace, window, cx| {
13081                    if workspace.active_modal::<TestModal>(cx).is_some() {
13082                        workspace.toggle_modal(window, cx, TestModal::new);
13083                        workspace.toggle_modal(window, cx, TestModal::new);
13084                    } else {
13085                        workspace.toggle_modal(window, cx, TestModal::new);
13086                    }
13087                })
13088            }
13089        };
13090
13091        // If focus is transferred to another view that's not a panel or another pane, we still show
13092        // the panel as zoomed.
13093        focus_other_view(cx);
13094        workspace.read_with(cx, |workspace, _| {
13095            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
13096            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
13097        });
13098
13099        // If focus is transferred elsewhere in the workspace, the panel is no longer zoomed.
13100        workspace.update_in(cx, |_workspace, window, cx| {
13101            cx.focus_self(window);
13102        });
13103        workspace.read_with(cx, |workspace, _| {
13104            assert_eq!(workspace.zoomed, None);
13105            assert_eq!(workspace.zoomed_position, None);
13106        });
13107
13108        // If focus is transferred again to another view that's not a panel or a pane, we won't
13109        // show the panel as zoomed because it wasn't zoomed before.
13110        focus_other_view(cx);
13111        workspace.read_with(cx, |workspace, _| {
13112            assert_eq!(workspace.zoomed, None);
13113            assert_eq!(workspace.zoomed_position, None);
13114        });
13115
13116        // When the panel is activated, it is zoomed again.
13117        cx.dispatch_action(ToggleRightDock);
13118        workspace.read_with(cx, |workspace, _| {
13119            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
13120            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
13121        });
13122
13123        // Emitting a ZoomOut event unzooms the panel.
13124        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomOut));
13125        workspace.read_with(cx, |workspace, _| {
13126            assert_eq!(workspace.zoomed, None);
13127            assert_eq!(workspace.zoomed_position, None);
13128        });
13129
13130        // Emit closed event on panel 1, which is active
13131        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Close));
13132
13133        // Now the left dock is closed, because panel_1 was the active panel
13134        workspace.update(cx, |workspace, cx| {
13135            let right_dock = workspace.right_dock();
13136            assert!(!right_dock.read(cx).is_open());
13137        });
13138    }
13139
13140    #[gpui::test]
13141    async fn test_no_save_prompt_when_multi_buffer_dirty_items_closed(cx: &mut TestAppContext) {
13142        init_test(cx);
13143
13144        let fs = FakeFs::new(cx.background_executor.clone());
13145        let project = Project::test(fs, [], cx).await;
13146        let (workspace, cx) =
13147            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13148        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13149
13150        let dirty_regular_buffer = cx.new(|cx| {
13151            TestItem::new(cx)
13152                .with_dirty(true)
13153                .with_label("1.txt")
13154                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
13155        });
13156        let dirty_regular_buffer_2 = cx.new(|cx| {
13157            TestItem::new(cx)
13158                .with_dirty(true)
13159                .with_label("2.txt")
13160                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
13161        });
13162        let dirty_multi_buffer_with_both = cx.new(|cx| {
13163            TestItem::new(cx)
13164                .with_dirty(true)
13165                .with_buffer_kind(ItemBufferKind::Multibuffer)
13166                .with_label("Fake Project Search")
13167                .with_project_items(&[
13168                    dirty_regular_buffer.read(cx).project_items[0].clone(),
13169                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
13170                ])
13171        });
13172        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
13173        workspace.update_in(cx, |workspace, window, cx| {
13174            workspace.add_item(
13175                pane.clone(),
13176                Box::new(dirty_regular_buffer.clone()),
13177                None,
13178                false,
13179                false,
13180                window,
13181                cx,
13182            );
13183            workspace.add_item(
13184                pane.clone(),
13185                Box::new(dirty_regular_buffer_2.clone()),
13186                None,
13187                false,
13188                false,
13189                window,
13190                cx,
13191            );
13192            workspace.add_item(
13193                pane.clone(),
13194                Box::new(dirty_multi_buffer_with_both.clone()),
13195                None,
13196                false,
13197                false,
13198                window,
13199                cx,
13200            );
13201        });
13202
13203        pane.update_in(cx, |pane, window, cx| {
13204            pane.activate_item(2, true, true, window, cx);
13205            assert_eq!(
13206                pane.active_item().unwrap().item_id(),
13207                multi_buffer_with_both_files_id,
13208                "Should select the multi buffer in the pane"
13209            );
13210        });
13211        let close_all_but_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
13212            pane.close_other_items(
13213                &CloseOtherItems {
13214                    save_intent: Some(SaveIntent::Save),
13215                    close_pinned: true,
13216                },
13217                None,
13218                window,
13219                cx,
13220            )
13221        });
13222        cx.background_executor.run_until_parked();
13223        assert!(!cx.has_pending_prompt());
13224        close_all_but_multi_buffer_task
13225            .await
13226            .expect("Closing all buffers but the multi buffer failed");
13227        pane.update(cx, |pane, cx| {
13228            assert_eq!(dirty_regular_buffer.read(cx).save_count, 1);
13229            assert_eq!(dirty_multi_buffer_with_both.read(cx).save_count, 0);
13230            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 1);
13231            assert_eq!(pane.items_len(), 1);
13232            assert_eq!(
13233                pane.active_item().unwrap().item_id(),
13234                multi_buffer_with_both_files_id,
13235                "Should have only the multi buffer left in the pane"
13236            );
13237            assert!(
13238                dirty_multi_buffer_with_both.read(cx).is_dirty,
13239                "The multi buffer containing the unsaved buffer should still be dirty"
13240            );
13241        });
13242
13243        dirty_regular_buffer.update(cx, |buffer, cx| {
13244            buffer.project_items[0].update(cx, |pi, _| pi.is_dirty = true)
13245        });
13246
13247        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
13248            pane.close_active_item(
13249                &CloseActiveItem {
13250                    save_intent: Some(SaveIntent::Close),
13251                    close_pinned: false,
13252                },
13253                window,
13254                cx,
13255            )
13256        });
13257        cx.background_executor.run_until_parked();
13258        assert!(
13259            cx.has_pending_prompt(),
13260            "Dirty multi buffer should prompt a save dialog"
13261        );
13262        cx.simulate_prompt_answer("Save");
13263        cx.background_executor.run_until_parked();
13264        close_multi_buffer_task
13265            .await
13266            .expect("Closing the multi buffer failed");
13267        pane.update(cx, |pane, cx| {
13268            assert_eq!(
13269                dirty_multi_buffer_with_both.read(cx).save_count,
13270                1,
13271                "Multi buffer item should get be saved"
13272            );
13273            // Test impl does not save inner items, so we do not assert them
13274            assert_eq!(
13275                pane.items_len(),
13276                0,
13277                "No more items should be left in the pane"
13278            );
13279            assert!(pane.active_item().is_none());
13280        });
13281    }
13282
13283    #[gpui::test]
13284    async fn test_save_prompt_when_dirty_multi_buffer_closed_with_some_of_its_dirty_items_not_present_in_the_pane(
13285        cx: &mut TestAppContext,
13286    ) {
13287        init_test(cx);
13288
13289        let fs = FakeFs::new(cx.background_executor.clone());
13290        let project = Project::test(fs, [], cx).await;
13291        let (workspace, cx) =
13292            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13293        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13294
13295        let dirty_regular_buffer = cx.new(|cx| {
13296            TestItem::new(cx)
13297                .with_dirty(true)
13298                .with_label("1.txt")
13299                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
13300        });
13301        let dirty_regular_buffer_2 = cx.new(|cx| {
13302            TestItem::new(cx)
13303                .with_dirty(true)
13304                .with_label("2.txt")
13305                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
13306        });
13307        let clear_regular_buffer = cx.new(|cx| {
13308            TestItem::new(cx)
13309                .with_label("3.txt")
13310                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
13311        });
13312
13313        let dirty_multi_buffer_with_both = cx.new(|cx| {
13314            TestItem::new(cx)
13315                .with_dirty(true)
13316                .with_buffer_kind(ItemBufferKind::Multibuffer)
13317                .with_label("Fake Project Search")
13318                .with_project_items(&[
13319                    dirty_regular_buffer.read(cx).project_items[0].clone(),
13320                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
13321                    clear_regular_buffer.read(cx).project_items[0].clone(),
13322                ])
13323        });
13324        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
13325        workspace.update_in(cx, |workspace, window, cx| {
13326            workspace.add_item(
13327                pane.clone(),
13328                Box::new(dirty_regular_buffer.clone()),
13329                None,
13330                false,
13331                false,
13332                window,
13333                cx,
13334            );
13335            workspace.add_item(
13336                pane.clone(),
13337                Box::new(dirty_multi_buffer_with_both.clone()),
13338                None,
13339                false,
13340                false,
13341                window,
13342                cx,
13343            );
13344        });
13345
13346        pane.update_in(cx, |pane, window, cx| {
13347            pane.activate_item(1, true, true, window, cx);
13348            assert_eq!(
13349                pane.active_item().unwrap().item_id(),
13350                multi_buffer_with_both_files_id,
13351                "Should select the multi buffer in the pane"
13352            );
13353        });
13354        let _close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
13355            pane.close_active_item(
13356                &CloseActiveItem {
13357                    save_intent: None,
13358                    close_pinned: false,
13359                },
13360                window,
13361                cx,
13362            )
13363        });
13364        cx.background_executor.run_until_parked();
13365        assert!(
13366            cx.has_pending_prompt(),
13367            "With one dirty item from the multi buffer not being in the pane, a save prompt should be shown"
13368        );
13369    }
13370
13371    /// Tests that when `close_on_file_delete` is enabled, files are automatically
13372    /// closed when they are deleted from disk.
13373    #[gpui::test]
13374    async fn test_close_on_disk_deletion_enabled(cx: &mut TestAppContext) {
13375        init_test(cx);
13376
13377        // Enable the close_on_disk_deletion setting
13378        cx.update_global(|store: &mut SettingsStore, cx| {
13379            store.update_user_settings(cx, |settings| {
13380                settings.workspace.close_on_file_delete = Some(true);
13381            });
13382        });
13383
13384        let fs = FakeFs::new(cx.background_executor.clone());
13385        let project = Project::test(fs, [], cx).await;
13386        let (workspace, cx) =
13387            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13388        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13389
13390        // Create a test item that simulates a file
13391        let item = cx.new(|cx| {
13392            TestItem::new(cx)
13393                .with_label("test.txt")
13394                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
13395        });
13396
13397        // Add item to workspace
13398        workspace.update_in(cx, |workspace, window, cx| {
13399            workspace.add_item(
13400                pane.clone(),
13401                Box::new(item.clone()),
13402                None,
13403                false,
13404                false,
13405                window,
13406                cx,
13407            );
13408        });
13409
13410        // Verify the item is in the pane
13411        pane.read_with(cx, |pane, _| {
13412            assert_eq!(pane.items().count(), 1);
13413        });
13414
13415        // Simulate file deletion by setting the item's deleted state
13416        item.update(cx, |item, _| {
13417            item.set_has_deleted_file(true);
13418        });
13419
13420        // Emit UpdateTab event to trigger the close behavior
13421        cx.run_until_parked();
13422        item.update(cx, |_, cx| {
13423            cx.emit(ItemEvent::UpdateTab);
13424        });
13425
13426        // Allow the close operation to complete
13427        cx.run_until_parked();
13428
13429        // Verify the item was automatically closed
13430        pane.read_with(cx, |pane, _| {
13431            assert_eq!(
13432                pane.items().count(),
13433                0,
13434                "Item should be automatically closed when file is deleted"
13435            );
13436        });
13437    }
13438
13439    /// Tests that when `close_on_file_delete` is disabled (default), files remain
13440    /// open with a strikethrough when they are deleted from disk.
13441    #[gpui::test]
13442    async fn test_close_on_disk_deletion_disabled(cx: &mut TestAppContext) {
13443        init_test(cx);
13444
13445        // Ensure close_on_disk_deletion is disabled (default)
13446        cx.update_global(|store: &mut SettingsStore, cx| {
13447            store.update_user_settings(cx, |settings| {
13448                settings.workspace.close_on_file_delete = Some(false);
13449            });
13450        });
13451
13452        let fs = FakeFs::new(cx.background_executor.clone());
13453        let project = Project::test(fs, [], cx).await;
13454        let (workspace, cx) =
13455            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13456        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13457
13458        // Create a test item that simulates a file
13459        let item = cx.new(|cx| {
13460            TestItem::new(cx)
13461                .with_label("test.txt")
13462                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
13463        });
13464
13465        // Add item to workspace
13466        workspace.update_in(cx, |workspace, window, cx| {
13467            workspace.add_item(
13468                pane.clone(),
13469                Box::new(item.clone()),
13470                None,
13471                false,
13472                false,
13473                window,
13474                cx,
13475            );
13476        });
13477
13478        // Verify the item is in the pane
13479        pane.read_with(cx, |pane, _| {
13480            assert_eq!(pane.items().count(), 1);
13481        });
13482
13483        // Simulate file deletion
13484        item.update(cx, |item, _| {
13485            item.set_has_deleted_file(true);
13486        });
13487
13488        // Emit UpdateTab event
13489        cx.run_until_parked();
13490        item.update(cx, |_, cx| {
13491            cx.emit(ItemEvent::UpdateTab);
13492        });
13493
13494        // Allow any potential close operation to complete
13495        cx.run_until_parked();
13496
13497        // Verify the item remains open (with strikethrough)
13498        pane.read_with(cx, |pane, _| {
13499            assert_eq!(
13500                pane.items().count(),
13501                1,
13502                "Item should remain open when close_on_disk_deletion is disabled"
13503            );
13504        });
13505
13506        // Verify the item shows as deleted
13507        item.read_with(cx, |item, _| {
13508            assert!(
13509                item.has_deleted_file,
13510                "Item should be marked as having deleted file"
13511            );
13512        });
13513    }
13514
13515    /// Tests that dirty files are not automatically closed when deleted from disk,
13516    /// even when `close_on_file_delete` is enabled. This ensures users don't lose
13517    /// unsaved changes without being prompted.
13518    #[gpui::test]
13519    async fn test_close_on_disk_deletion_with_dirty_file(cx: &mut TestAppContext) {
13520        init_test(cx);
13521
13522        // Enable the close_on_file_delete setting
13523        cx.update_global(|store: &mut SettingsStore, cx| {
13524            store.update_user_settings(cx, |settings| {
13525                settings.workspace.close_on_file_delete = Some(true);
13526            });
13527        });
13528
13529        let fs = FakeFs::new(cx.background_executor.clone());
13530        let project = Project::test(fs, [], cx).await;
13531        let (workspace, cx) =
13532            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13533        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13534
13535        // Create a dirty test item
13536        let item = cx.new(|cx| {
13537            TestItem::new(cx)
13538                .with_dirty(true)
13539                .with_label("test.txt")
13540                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
13541        });
13542
13543        // Add item to workspace
13544        workspace.update_in(cx, |workspace, window, cx| {
13545            workspace.add_item(
13546                pane.clone(),
13547                Box::new(item.clone()),
13548                None,
13549                false,
13550                false,
13551                window,
13552                cx,
13553            );
13554        });
13555
13556        // Simulate file deletion
13557        item.update(cx, |item, _| {
13558            item.set_has_deleted_file(true);
13559        });
13560
13561        // Emit UpdateTab event to trigger the close behavior
13562        cx.run_until_parked();
13563        item.update(cx, |_, cx| {
13564            cx.emit(ItemEvent::UpdateTab);
13565        });
13566
13567        // Allow any potential close operation to complete
13568        cx.run_until_parked();
13569
13570        // Verify the item remains open (dirty files are not auto-closed)
13571        pane.read_with(cx, |pane, _| {
13572            assert_eq!(
13573                pane.items().count(),
13574                1,
13575                "Dirty items should not be automatically closed even when file is deleted"
13576            );
13577        });
13578
13579        // Verify the item is marked as deleted and still dirty
13580        item.read_with(cx, |item, _| {
13581            assert!(
13582                item.has_deleted_file,
13583                "Item should be marked as having deleted file"
13584            );
13585            assert!(item.is_dirty, "Item should still be dirty");
13586        });
13587    }
13588
13589    /// Tests that navigation history is cleaned up when files are auto-closed
13590    /// due to deletion from disk.
13591    #[gpui::test]
13592    async fn test_close_on_disk_deletion_cleans_navigation_history(cx: &mut TestAppContext) {
13593        init_test(cx);
13594
13595        // Enable the close_on_file_delete setting
13596        cx.update_global(|store: &mut SettingsStore, cx| {
13597            store.update_user_settings(cx, |settings| {
13598                settings.workspace.close_on_file_delete = Some(true);
13599            });
13600        });
13601
13602        let fs = FakeFs::new(cx.background_executor.clone());
13603        let project = Project::test(fs, [], cx).await;
13604        let (workspace, cx) =
13605            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13606        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13607
13608        // Create test items
13609        let item1 = cx.new(|cx| {
13610            TestItem::new(cx)
13611                .with_label("test1.txt")
13612                .with_project_items(&[TestProjectItem::new(1, "test1.txt", cx)])
13613        });
13614        let item1_id = item1.item_id();
13615
13616        let item2 = cx.new(|cx| {
13617            TestItem::new(cx)
13618                .with_label("test2.txt")
13619                .with_project_items(&[TestProjectItem::new(2, "test2.txt", cx)])
13620        });
13621
13622        // Add items to workspace
13623        workspace.update_in(cx, |workspace, window, cx| {
13624            workspace.add_item(
13625                pane.clone(),
13626                Box::new(item1.clone()),
13627                None,
13628                false,
13629                false,
13630                window,
13631                cx,
13632            );
13633            workspace.add_item(
13634                pane.clone(),
13635                Box::new(item2.clone()),
13636                None,
13637                false,
13638                false,
13639                window,
13640                cx,
13641            );
13642        });
13643
13644        // Activate item1 to ensure it gets navigation entries
13645        pane.update_in(cx, |pane, window, cx| {
13646            pane.activate_item(0, true, true, window, cx);
13647        });
13648
13649        // Switch to item2 and back to create navigation history
13650        pane.update_in(cx, |pane, window, cx| {
13651            pane.activate_item(1, true, true, window, cx);
13652        });
13653        cx.run_until_parked();
13654
13655        pane.update_in(cx, |pane, window, cx| {
13656            pane.activate_item(0, true, true, window, cx);
13657        });
13658        cx.run_until_parked();
13659
13660        // Simulate file deletion for item1
13661        item1.update(cx, |item, _| {
13662            item.set_has_deleted_file(true);
13663        });
13664
13665        // Emit UpdateTab event to trigger the close behavior
13666        item1.update(cx, |_, cx| {
13667            cx.emit(ItemEvent::UpdateTab);
13668        });
13669        cx.run_until_parked();
13670
13671        // Verify item1 was closed
13672        pane.read_with(cx, |pane, _| {
13673            assert_eq!(
13674                pane.items().count(),
13675                1,
13676                "Should have 1 item remaining after auto-close"
13677            );
13678        });
13679
13680        // Check navigation history after close
13681        let has_item = pane.read_with(cx, |pane, cx| {
13682            let mut has_item = false;
13683            pane.nav_history().for_each_entry(cx, &mut |entry, _| {
13684                if entry.item.id() == item1_id {
13685                    has_item = true;
13686                }
13687            });
13688            has_item
13689        });
13690
13691        assert!(
13692            !has_item,
13693            "Navigation history should not contain closed item entries"
13694        );
13695    }
13696
13697    #[gpui::test]
13698    async fn test_no_save_prompt_when_dirty_multi_buffer_closed_with_all_of_its_dirty_items_present_in_the_pane(
13699        cx: &mut TestAppContext,
13700    ) {
13701        init_test(cx);
13702
13703        let fs = FakeFs::new(cx.background_executor.clone());
13704        let project = Project::test(fs, [], cx).await;
13705        let (workspace, cx) =
13706            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13707        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13708
13709        let dirty_regular_buffer = cx.new(|cx| {
13710            TestItem::new(cx)
13711                .with_dirty(true)
13712                .with_label("1.txt")
13713                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
13714        });
13715        let dirty_regular_buffer_2 = cx.new(|cx| {
13716            TestItem::new(cx)
13717                .with_dirty(true)
13718                .with_label("2.txt")
13719                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
13720        });
13721        let clear_regular_buffer = cx.new(|cx| {
13722            TestItem::new(cx)
13723                .with_label("3.txt")
13724                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
13725        });
13726
13727        let dirty_multi_buffer = cx.new(|cx| {
13728            TestItem::new(cx)
13729                .with_dirty(true)
13730                .with_buffer_kind(ItemBufferKind::Multibuffer)
13731                .with_label("Fake Project Search")
13732                .with_project_items(&[
13733                    dirty_regular_buffer.read(cx).project_items[0].clone(),
13734                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
13735                    clear_regular_buffer.read(cx).project_items[0].clone(),
13736                ])
13737        });
13738        workspace.update_in(cx, |workspace, window, cx| {
13739            workspace.add_item(
13740                pane.clone(),
13741                Box::new(dirty_regular_buffer.clone()),
13742                None,
13743                false,
13744                false,
13745                window,
13746                cx,
13747            );
13748            workspace.add_item(
13749                pane.clone(),
13750                Box::new(dirty_regular_buffer_2.clone()),
13751                None,
13752                false,
13753                false,
13754                window,
13755                cx,
13756            );
13757            workspace.add_item(
13758                pane.clone(),
13759                Box::new(dirty_multi_buffer.clone()),
13760                None,
13761                false,
13762                false,
13763                window,
13764                cx,
13765            );
13766        });
13767
13768        pane.update_in(cx, |pane, window, cx| {
13769            pane.activate_item(2, true, true, window, cx);
13770            assert_eq!(
13771                pane.active_item().unwrap().item_id(),
13772                dirty_multi_buffer.item_id(),
13773                "Should select the multi buffer in the pane"
13774            );
13775        });
13776        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
13777            pane.close_active_item(
13778                &CloseActiveItem {
13779                    save_intent: None,
13780                    close_pinned: false,
13781                },
13782                window,
13783                cx,
13784            )
13785        });
13786        cx.background_executor.run_until_parked();
13787        assert!(
13788            !cx.has_pending_prompt(),
13789            "All dirty items from the multi buffer are in the pane still, no save prompts should be shown"
13790        );
13791        close_multi_buffer_task
13792            .await
13793            .expect("Closing multi buffer failed");
13794        pane.update(cx, |pane, cx| {
13795            assert_eq!(dirty_regular_buffer.read(cx).save_count, 0);
13796            assert_eq!(dirty_multi_buffer.read(cx).save_count, 0);
13797            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 0);
13798            assert_eq!(
13799                pane.items()
13800                    .map(|item| item.item_id())
13801                    .sorted()
13802                    .collect::<Vec<_>>(),
13803                vec![
13804                    dirty_regular_buffer.item_id(),
13805                    dirty_regular_buffer_2.item_id(),
13806                ],
13807                "Should have no multi buffer left in the pane"
13808            );
13809            assert!(dirty_regular_buffer.read(cx).is_dirty);
13810            assert!(dirty_regular_buffer_2.read(cx).is_dirty);
13811        });
13812    }
13813
13814    #[gpui::test]
13815    async fn test_move_focused_panel_to_next_position(cx: &mut gpui::TestAppContext) {
13816        init_test(cx);
13817        let fs = FakeFs::new(cx.executor());
13818        let project = Project::test(fs, [], cx).await;
13819        let (multi_workspace, cx) =
13820            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
13821        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
13822
13823        // Add a new panel to the right dock, opening the dock and setting the
13824        // focus to the new panel.
13825        let panel = workspace.update_in(cx, |workspace, window, cx| {
13826            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
13827            workspace.add_panel(panel.clone(), window, cx);
13828
13829            workspace
13830                .right_dock()
13831                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
13832
13833            workspace.toggle_panel_focus::<TestPanel>(window, cx);
13834
13835            panel
13836        });
13837
13838        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
13839        // panel to the next valid position which, in this case, is the left
13840        // dock.
13841        cx.dispatch_action(MoveFocusedPanelToNextPosition);
13842        workspace.update(cx, |workspace, cx| {
13843            assert!(workspace.left_dock().read(cx).is_open());
13844            assert_eq!(panel.read(cx).position, DockPosition::Left);
13845        });
13846
13847        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
13848        // panel to the next valid position which, in this case, is the bottom
13849        // dock.
13850        cx.dispatch_action(MoveFocusedPanelToNextPosition);
13851        workspace.update(cx, |workspace, cx| {
13852            assert!(workspace.bottom_dock().read(cx).is_open());
13853            assert_eq!(panel.read(cx).position, DockPosition::Bottom);
13854        });
13855
13856        // Dispatch the `MoveFocusedPanelToNextPosition` action again, this time
13857        // around moving the panel to its initial position, the right dock.
13858        cx.dispatch_action(MoveFocusedPanelToNextPosition);
13859        workspace.update(cx, |workspace, cx| {
13860            assert!(workspace.right_dock().read(cx).is_open());
13861            assert_eq!(panel.read(cx).position, DockPosition::Right);
13862        });
13863
13864        // Remove focus from the panel, ensuring that, if the panel is not
13865        // focused, the `MoveFocusedPanelToNextPosition` action does not update
13866        // the panel's position, so the panel is still in the right dock.
13867        workspace.update_in(cx, |workspace, window, cx| {
13868            workspace.toggle_panel_focus::<TestPanel>(window, cx);
13869        });
13870
13871        cx.dispatch_action(MoveFocusedPanelToNextPosition);
13872        workspace.update(cx, |workspace, cx| {
13873            assert!(workspace.right_dock().read(cx).is_open());
13874            assert_eq!(panel.read(cx).position, DockPosition::Right);
13875        });
13876    }
13877
13878    #[gpui::test]
13879    async fn test_moving_items_create_panes(cx: &mut TestAppContext) {
13880        init_test(cx);
13881
13882        let fs = FakeFs::new(cx.executor());
13883        let project = Project::test(fs, [], cx).await;
13884        let (workspace, cx) =
13885            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
13886
13887        let item_1 = cx.new(|cx| {
13888            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
13889        });
13890        workspace.update_in(cx, |workspace, window, cx| {
13891            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
13892            workspace.move_item_to_pane_in_direction(
13893                &MoveItemToPaneInDirection {
13894                    direction: SplitDirection::Right,
13895                    focus: true,
13896                    clone: false,
13897                },
13898                window,
13899                cx,
13900            );
13901            workspace.move_item_to_pane_at_index(
13902                &MoveItemToPane {
13903                    destination: 3,
13904                    focus: true,
13905                    clone: false,
13906                },
13907                window,
13908                cx,
13909            );
13910
13911            assert_eq!(workspace.panes.len(), 1, "No new panes were created");
13912            assert_eq!(
13913                pane_items_paths(&workspace.active_pane, cx),
13914                vec!["first.txt".to_string()],
13915                "Single item was not moved anywhere"
13916            );
13917        });
13918
13919        let item_2 = cx.new(|cx| {
13920            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "second.txt", cx)])
13921        });
13922        workspace.update_in(cx, |workspace, window, cx| {
13923            workspace.add_item_to_active_pane(Box::new(item_2), None, true, window, cx);
13924            assert_eq!(
13925                pane_items_paths(&workspace.panes[0], cx),
13926                vec!["first.txt".to_string(), "second.txt".to_string()],
13927            );
13928            workspace.move_item_to_pane_in_direction(
13929                &MoveItemToPaneInDirection {
13930                    direction: SplitDirection::Right,
13931                    focus: true,
13932                    clone: false,
13933                },
13934                window,
13935                cx,
13936            );
13937
13938            assert_eq!(workspace.panes.len(), 2, "A new pane should be created");
13939            assert_eq!(
13940                pane_items_paths(&workspace.panes[0], cx),
13941                vec!["first.txt".to_string()],
13942                "After moving, one item should be left in the original pane"
13943            );
13944            assert_eq!(
13945                pane_items_paths(&workspace.panes[1], cx),
13946                vec!["second.txt".to_string()],
13947                "New item should have been moved to the new pane"
13948            );
13949        });
13950
13951        let item_3 = cx.new(|cx| {
13952            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "third.txt", cx)])
13953        });
13954        workspace.update_in(cx, |workspace, window, cx| {
13955            let original_pane = workspace.panes[0].clone();
13956            workspace.set_active_pane(&original_pane, window, cx);
13957            workspace.add_item_to_active_pane(Box::new(item_3), None, true, window, cx);
13958            assert_eq!(workspace.panes.len(), 2, "No new panes were created");
13959            assert_eq!(
13960                pane_items_paths(&workspace.active_pane, cx),
13961                vec!["first.txt".to_string(), "third.txt".to_string()],
13962                "New pane should be ready to move one item out"
13963            );
13964
13965            workspace.move_item_to_pane_at_index(
13966                &MoveItemToPane {
13967                    destination: 3,
13968                    focus: true,
13969                    clone: false,
13970                },
13971                window,
13972                cx,
13973            );
13974            assert_eq!(workspace.panes.len(), 3, "A new pane should be created");
13975            assert_eq!(
13976                pane_items_paths(&workspace.active_pane, cx),
13977                vec!["first.txt".to_string()],
13978                "After moving, one item should be left in the original pane"
13979            );
13980            assert_eq!(
13981                pane_items_paths(&workspace.panes[1], cx),
13982                vec!["second.txt".to_string()],
13983                "Previously created pane should be unchanged"
13984            );
13985            assert_eq!(
13986                pane_items_paths(&workspace.panes[2], cx),
13987                vec!["third.txt".to_string()],
13988                "New item should have been moved to the new pane"
13989            );
13990        });
13991    }
13992
13993    #[gpui::test]
13994    async fn test_moving_items_can_clone_panes(cx: &mut TestAppContext) {
13995        init_test(cx);
13996
13997        let fs = FakeFs::new(cx.executor());
13998        let project = Project::test(fs, [], cx).await;
13999        let (workspace, cx) =
14000            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
14001
14002        let item_1 = cx.new(|cx| {
14003            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
14004        });
14005        workspace.update_in(cx, |workspace, window, cx| {
14006            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
14007            workspace.move_item_to_pane_in_direction(
14008                &MoveItemToPaneInDirection {
14009                    direction: SplitDirection::Right,
14010                    focus: true,
14011                    clone: true,
14012                },
14013                window,
14014                cx,
14015            );
14016        });
14017        cx.run_until_parked();
14018        workspace.update_in(cx, |workspace, window, cx| {
14019            workspace.move_item_to_pane_at_index(
14020                &MoveItemToPane {
14021                    destination: 3,
14022                    focus: true,
14023                    clone: true,
14024                },
14025                window,
14026                cx,
14027            );
14028        });
14029        cx.run_until_parked();
14030
14031        workspace.update(cx, |workspace, cx| {
14032            assert_eq!(workspace.panes.len(), 3, "Two new panes were created");
14033            for pane in workspace.panes() {
14034                assert_eq!(
14035                    pane_items_paths(pane, cx),
14036                    vec!["first.txt".to_string()],
14037                    "Single item exists in all panes"
14038                );
14039            }
14040        });
14041
14042        // verify that the active pane has been updated after waiting for the
14043        // pane focus event to fire and resolve
14044        workspace.read_with(cx, |workspace, _app| {
14045            assert_eq!(
14046                workspace.active_pane(),
14047                &workspace.panes[2],
14048                "The third pane should be the active one: {:?}",
14049                workspace.panes
14050            );
14051        })
14052    }
14053
14054    #[gpui::test]
14055    async fn test_close_item_in_all_panes(cx: &mut TestAppContext) {
14056        init_test(cx);
14057
14058        let fs = FakeFs::new(cx.executor());
14059        fs.insert_tree("/root", json!({ "test.txt": "" })).await;
14060
14061        let project = Project::test(fs, ["root".as_ref()], cx).await;
14062        let (workspace, cx) =
14063            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
14064
14065        let pane_a = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
14066        // Add item to pane A with project path
14067        let item_a = cx.new(|cx| {
14068            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
14069        });
14070        workspace.update_in(cx, |workspace, window, cx| {
14071            workspace.add_item_to_active_pane(Box::new(item_a.clone()), None, true, window, cx)
14072        });
14073
14074        // Split to create pane B
14075        let pane_b = workspace.update_in(cx, |workspace, window, cx| {
14076            workspace.split_pane(pane_a.clone(), SplitDirection::Right, window, cx)
14077        });
14078
14079        // Add item with SAME project path to pane B, and pin it
14080        let item_b = cx.new(|cx| {
14081            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
14082        });
14083        pane_b.update_in(cx, |pane, window, cx| {
14084            pane.add_item(Box::new(item_b.clone()), true, true, None, window, cx);
14085            pane.set_pinned_count(1);
14086        });
14087
14088        assert_eq!(pane_a.read_with(cx, |pane, _| pane.items_len()), 1);
14089        assert_eq!(pane_b.read_with(cx, |pane, _| pane.items_len()), 1);
14090
14091        // close_pinned: false should only close the unpinned copy
14092        workspace.update_in(cx, |workspace, window, cx| {
14093            workspace.close_item_in_all_panes(
14094                &CloseItemInAllPanes {
14095                    save_intent: Some(SaveIntent::Close),
14096                    close_pinned: false,
14097                },
14098                window,
14099                cx,
14100            )
14101        });
14102        cx.executor().run_until_parked();
14103
14104        let item_count_a = pane_a.read_with(cx, |pane, _| pane.items_len());
14105        let item_count_b = pane_b.read_with(cx, |pane, _| pane.items_len());
14106        assert_eq!(item_count_a, 0, "Unpinned item in pane A should be closed");
14107        assert_eq!(item_count_b, 1, "Pinned item in pane B should remain");
14108
14109        // Split again, seeing as closing the previous item also closed its
14110        // pane, so only pane remains, which does not allow us to properly test
14111        // that both items close when `close_pinned: true`.
14112        let pane_c = workspace.update_in(cx, |workspace, window, cx| {
14113            workspace.split_pane(pane_b.clone(), SplitDirection::Right, window, cx)
14114        });
14115
14116        // Add an item with the same project path to pane C so that
14117        // close_item_in_all_panes can determine what to close across all panes
14118        // (it reads the active item from the active pane, and split_pane
14119        // creates an empty pane).
14120        let item_c = cx.new(|cx| {
14121            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
14122        });
14123        pane_c.update_in(cx, |pane, window, cx| {
14124            pane.add_item(Box::new(item_c.clone()), true, true, None, window, cx);
14125        });
14126
14127        // close_pinned: true should close the pinned copy too
14128        workspace.update_in(cx, |workspace, window, cx| {
14129            let panes_count = workspace.panes().len();
14130            assert_eq!(panes_count, 2, "Workspace should have two panes (B and C)");
14131
14132            workspace.close_item_in_all_panes(
14133                &CloseItemInAllPanes {
14134                    save_intent: Some(SaveIntent::Close),
14135                    close_pinned: true,
14136                },
14137                window,
14138                cx,
14139            )
14140        });
14141        cx.executor().run_until_parked();
14142
14143        let item_count_b = pane_b.read_with(cx, |pane, _| pane.items_len());
14144        let item_count_c = pane_c.read_with(cx, |pane, _| pane.items_len());
14145        assert_eq!(item_count_b, 0, "Pinned item in pane B should be closed");
14146        assert_eq!(item_count_c, 0, "Unpinned item in pane C should be closed");
14147    }
14148
14149    mod register_project_item_tests {
14150
14151        use super::*;
14152
14153        // View
14154        struct TestPngItemView {
14155            focus_handle: FocusHandle,
14156        }
14157        // Model
14158        struct TestPngItem {}
14159
14160        impl project::ProjectItem for TestPngItem {
14161            fn try_open(
14162                _project: &Entity<Project>,
14163                path: &ProjectPath,
14164                cx: &mut App,
14165            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
14166                if path.path.extension().unwrap() == "png" {
14167                    Some(cx.spawn(async move |cx| Ok(cx.new(|_| TestPngItem {}))))
14168                } else {
14169                    None
14170                }
14171            }
14172
14173            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
14174                None
14175            }
14176
14177            fn project_path(&self, _: &App) -> Option<ProjectPath> {
14178                None
14179            }
14180
14181            fn is_dirty(&self) -> bool {
14182                false
14183            }
14184        }
14185
14186        impl Item for TestPngItemView {
14187            type Event = ();
14188            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
14189                "".into()
14190            }
14191        }
14192        impl EventEmitter<()> for TestPngItemView {}
14193        impl Focusable for TestPngItemView {
14194            fn focus_handle(&self, _cx: &App) -> FocusHandle {
14195                self.focus_handle.clone()
14196            }
14197        }
14198
14199        impl Render for TestPngItemView {
14200            fn render(
14201                &mut self,
14202                _window: &mut Window,
14203                _cx: &mut Context<Self>,
14204            ) -> impl IntoElement {
14205                Empty
14206            }
14207        }
14208
14209        impl ProjectItem for TestPngItemView {
14210            type Item = TestPngItem;
14211
14212            fn for_project_item(
14213                _project: Entity<Project>,
14214                _pane: Option<&Pane>,
14215                _item: Entity<Self::Item>,
14216                _: &mut Window,
14217                cx: &mut Context<Self>,
14218            ) -> Self
14219            where
14220                Self: Sized,
14221            {
14222                Self {
14223                    focus_handle: cx.focus_handle(),
14224                }
14225            }
14226        }
14227
14228        // View
14229        struct TestIpynbItemView {
14230            focus_handle: FocusHandle,
14231        }
14232        // Model
14233        struct TestIpynbItem {}
14234
14235        impl project::ProjectItem for TestIpynbItem {
14236            fn try_open(
14237                _project: &Entity<Project>,
14238                path: &ProjectPath,
14239                cx: &mut App,
14240            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
14241                if path.path.extension().unwrap() == "ipynb" {
14242                    Some(cx.spawn(async move |cx| Ok(cx.new(|_| TestIpynbItem {}))))
14243                } else {
14244                    None
14245                }
14246            }
14247
14248            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
14249                None
14250            }
14251
14252            fn project_path(&self, _: &App) -> Option<ProjectPath> {
14253                None
14254            }
14255
14256            fn is_dirty(&self) -> bool {
14257                false
14258            }
14259        }
14260
14261        impl Item for TestIpynbItemView {
14262            type Event = ();
14263            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
14264                "".into()
14265            }
14266        }
14267        impl EventEmitter<()> for TestIpynbItemView {}
14268        impl Focusable for TestIpynbItemView {
14269            fn focus_handle(&self, _cx: &App) -> FocusHandle {
14270                self.focus_handle.clone()
14271            }
14272        }
14273
14274        impl Render for TestIpynbItemView {
14275            fn render(
14276                &mut self,
14277                _window: &mut Window,
14278                _cx: &mut Context<Self>,
14279            ) -> impl IntoElement {
14280                Empty
14281            }
14282        }
14283
14284        impl ProjectItem for TestIpynbItemView {
14285            type Item = TestIpynbItem;
14286
14287            fn for_project_item(
14288                _project: Entity<Project>,
14289                _pane: Option<&Pane>,
14290                _item: Entity<Self::Item>,
14291                _: &mut Window,
14292                cx: &mut Context<Self>,
14293            ) -> Self
14294            where
14295                Self: Sized,
14296            {
14297                Self {
14298                    focus_handle: cx.focus_handle(),
14299                }
14300            }
14301        }
14302
14303        struct TestAlternatePngItemView {
14304            focus_handle: FocusHandle,
14305        }
14306
14307        impl Item for TestAlternatePngItemView {
14308            type Event = ();
14309            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
14310                "".into()
14311            }
14312        }
14313
14314        impl EventEmitter<()> for TestAlternatePngItemView {}
14315        impl Focusable for TestAlternatePngItemView {
14316            fn focus_handle(&self, _cx: &App) -> FocusHandle {
14317                self.focus_handle.clone()
14318            }
14319        }
14320
14321        impl Render for TestAlternatePngItemView {
14322            fn render(
14323                &mut self,
14324                _window: &mut Window,
14325                _cx: &mut Context<Self>,
14326            ) -> impl IntoElement {
14327                Empty
14328            }
14329        }
14330
14331        impl ProjectItem for TestAlternatePngItemView {
14332            type Item = TestPngItem;
14333
14334            fn for_project_item(
14335                _project: Entity<Project>,
14336                _pane: Option<&Pane>,
14337                _item: Entity<Self::Item>,
14338                _: &mut Window,
14339                cx: &mut Context<Self>,
14340            ) -> Self
14341            where
14342                Self: Sized,
14343            {
14344                Self {
14345                    focus_handle: cx.focus_handle(),
14346                }
14347            }
14348        }
14349
14350        #[gpui::test]
14351        async fn test_register_project_item(cx: &mut TestAppContext) {
14352            init_test(cx);
14353
14354            cx.update(|cx| {
14355                register_project_item::<TestPngItemView>(cx);
14356                register_project_item::<TestIpynbItemView>(cx);
14357            });
14358
14359            let fs = FakeFs::new(cx.executor());
14360            fs.insert_tree(
14361                "/root1",
14362                json!({
14363                    "one.png": "BINARYDATAHERE",
14364                    "two.ipynb": "{ totally a notebook }",
14365                    "three.txt": "editing text, sure why not?"
14366                }),
14367            )
14368            .await;
14369
14370            let project = Project::test(fs, ["root1".as_ref()], cx).await;
14371            let (workspace, cx) =
14372                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
14373
14374            let worktree_id = project.update(cx, |project, cx| {
14375                project.worktrees(cx).next().unwrap().read(cx).id()
14376            });
14377
14378            let handle = workspace
14379                .update_in(cx, |workspace, window, cx| {
14380                    let project_path = (worktree_id, rel_path("one.png"));
14381                    workspace.open_path(project_path, None, true, window, cx)
14382                })
14383                .await
14384                .unwrap();
14385
14386            // Now we can check if the handle we got back errored or not
14387            assert_eq!(
14388                handle.to_any_view().entity_type(),
14389                TypeId::of::<TestPngItemView>()
14390            );
14391
14392            let handle = workspace
14393                .update_in(cx, |workspace, window, cx| {
14394                    let project_path = (worktree_id, rel_path("two.ipynb"));
14395                    workspace.open_path(project_path, None, true, window, cx)
14396                })
14397                .await
14398                .unwrap();
14399
14400            assert_eq!(
14401                handle.to_any_view().entity_type(),
14402                TypeId::of::<TestIpynbItemView>()
14403            );
14404
14405            let handle = workspace
14406                .update_in(cx, |workspace, window, cx| {
14407                    let project_path = (worktree_id, rel_path("three.txt"));
14408                    workspace.open_path(project_path, None, true, window, cx)
14409                })
14410                .await;
14411            assert!(handle.is_err());
14412        }
14413
14414        #[gpui::test]
14415        async fn test_register_project_item_two_enter_one_leaves(cx: &mut TestAppContext) {
14416            init_test(cx);
14417
14418            cx.update(|cx| {
14419                register_project_item::<TestPngItemView>(cx);
14420                register_project_item::<TestAlternatePngItemView>(cx);
14421            });
14422
14423            let fs = FakeFs::new(cx.executor());
14424            fs.insert_tree(
14425                "/root1",
14426                json!({
14427                    "one.png": "BINARYDATAHERE",
14428                    "two.ipynb": "{ totally a notebook }",
14429                    "three.txt": "editing text, sure why not?"
14430                }),
14431            )
14432            .await;
14433            let project = Project::test(fs, ["root1".as_ref()], cx).await;
14434            let (workspace, cx) =
14435                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
14436            let worktree_id = project.update(cx, |project, cx| {
14437                project.worktrees(cx).next().unwrap().read(cx).id()
14438            });
14439
14440            let handle = workspace
14441                .update_in(cx, |workspace, window, cx| {
14442                    let project_path = (worktree_id, rel_path("one.png"));
14443                    workspace.open_path(project_path, None, true, window, cx)
14444                })
14445                .await
14446                .unwrap();
14447
14448            // This _must_ be the second item registered
14449            assert_eq!(
14450                handle.to_any_view().entity_type(),
14451                TypeId::of::<TestAlternatePngItemView>()
14452            );
14453
14454            let handle = workspace
14455                .update_in(cx, |workspace, window, cx| {
14456                    let project_path = (worktree_id, rel_path("three.txt"));
14457                    workspace.open_path(project_path, None, true, window, cx)
14458                })
14459                .await;
14460            assert!(handle.is_err());
14461        }
14462    }
14463
14464    #[gpui::test]
14465    async fn test_status_bar_visibility(cx: &mut TestAppContext) {
14466        init_test(cx);
14467
14468        let fs = FakeFs::new(cx.executor());
14469        let project = Project::test(fs, [], cx).await;
14470        let (workspace, _cx) =
14471            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
14472
14473        // Test with status bar shown (default)
14474        workspace.read_with(cx, |workspace, cx| {
14475            let visible = workspace.status_bar_visible(cx);
14476            assert!(visible, "Status bar should be visible by default");
14477        });
14478
14479        // Test with status bar hidden
14480        cx.update_global(|store: &mut SettingsStore, cx| {
14481            store.update_user_settings(cx, |settings| {
14482                settings.status_bar.get_or_insert_default().show = Some(false);
14483            });
14484        });
14485
14486        workspace.read_with(cx, |workspace, cx| {
14487            let visible = workspace.status_bar_visible(cx);
14488            assert!(!visible, "Status bar should be hidden when show is false");
14489        });
14490
14491        // Test with status bar shown explicitly
14492        cx.update_global(|store: &mut SettingsStore, cx| {
14493            store.update_user_settings(cx, |settings| {
14494                settings.status_bar.get_or_insert_default().show = Some(true);
14495            });
14496        });
14497
14498        workspace.read_with(cx, |workspace, cx| {
14499            let visible = workspace.status_bar_visible(cx);
14500            assert!(visible, "Status bar should be visible when show is true");
14501        });
14502    }
14503
14504    #[gpui::test]
14505    async fn test_pane_close_active_item(cx: &mut TestAppContext) {
14506        init_test(cx);
14507
14508        let fs = FakeFs::new(cx.executor());
14509        let project = Project::test(fs, [], cx).await;
14510        let (multi_workspace, cx) =
14511            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
14512        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
14513        let panel = workspace.update_in(cx, |workspace, window, cx| {
14514            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
14515            workspace.add_panel(panel.clone(), window, cx);
14516
14517            workspace
14518                .right_dock()
14519                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
14520
14521            panel
14522        });
14523
14524        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
14525        let item_a = cx.new(TestItem::new);
14526        let item_b = cx.new(TestItem::new);
14527        let item_a_id = item_a.entity_id();
14528        let item_b_id = item_b.entity_id();
14529
14530        pane.update_in(cx, |pane, window, cx| {
14531            pane.add_item(Box::new(item_a.clone()), true, true, None, window, cx);
14532            pane.add_item(Box::new(item_b.clone()), true, true, None, window, cx);
14533        });
14534
14535        pane.read_with(cx, |pane, _| {
14536            assert_eq!(pane.items_len(), 2);
14537            assert_eq!(pane.active_item().unwrap().item_id(), item_b_id);
14538        });
14539
14540        workspace.update_in(cx, |workspace, window, cx| {
14541            workspace.toggle_panel_focus::<TestPanel>(window, cx);
14542        });
14543
14544        workspace.update_in(cx, |_, window, cx| {
14545            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
14546        });
14547
14548        // Assert that the `pane::CloseActiveItem` action is handled at the
14549        // workspace level when one of the dock panels is focused and, in that
14550        // case, the center pane's active item is closed but the focus is not
14551        // moved.
14552        cx.dispatch_action(pane::CloseActiveItem::default());
14553        cx.run_until_parked();
14554
14555        pane.read_with(cx, |pane, _| {
14556            assert_eq!(pane.items_len(), 1);
14557            assert_eq!(pane.active_item().unwrap().item_id(), item_a_id);
14558        });
14559
14560        workspace.update_in(cx, |workspace, window, cx| {
14561            assert!(workspace.right_dock().read(cx).is_open());
14562            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
14563        });
14564    }
14565
14566    #[gpui::test]
14567    async fn test_panel_zoom_preserved_across_workspace_switch(cx: &mut TestAppContext) {
14568        init_test(cx);
14569        let fs = FakeFs::new(cx.executor());
14570
14571        let project_a = Project::test(fs.clone(), [], cx).await;
14572        let project_b = Project::test(fs, [], cx).await;
14573
14574        let multi_workspace_handle =
14575            cx.add_window(|window, cx| MultiWorkspace::test_new(project_a.clone(), window, cx));
14576        cx.run_until_parked();
14577
14578        multi_workspace_handle
14579            .update(cx, |mw, _window, cx| {
14580                mw.open_sidebar(cx);
14581            })
14582            .unwrap();
14583
14584        let workspace_a = multi_workspace_handle
14585            .read_with(cx, |mw, _| mw.workspace().clone())
14586            .unwrap();
14587
14588        let _workspace_b = multi_workspace_handle
14589            .update(cx, |mw, window, cx| {
14590                mw.test_add_workspace(project_b, window, cx)
14591            })
14592            .unwrap();
14593
14594        // Switch to workspace A
14595        multi_workspace_handle
14596            .update(cx, |mw, window, cx| {
14597                let workspace = mw.workspaces().next().unwrap().clone();
14598                mw.activate(workspace, window, cx);
14599            })
14600            .unwrap();
14601
14602        let cx = &mut VisualTestContext::from_window(multi_workspace_handle.into(), cx);
14603
14604        // Add a panel to workspace A's right dock and open the dock
14605        let panel = workspace_a.update_in(cx, |workspace, window, cx| {
14606            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
14607            workspace.add_panel(panel.clone(), window, cx);
14608            workspace
14609                .right_dock()
14610                .update(cx, |dock, cx| dock.set_open(true, window, cx));
14611            panel
14612        });
14613
14614        // Focus the panel through the workspace (matching existing test pattern)
14615        workspace_a.update_in(cx, |workspace, window, cx| {
14616            workspace.toggle_panel_focus::<TestPanel>(window, cx);
14617        });
14618
14619        // Zoom the panel
14620        panel.update_in(cx, |panel, window, cx| {
14621            panel.set_zoomed(true, window, cx);
14622        });
14623
14624        // Verify the panel is zoomed and the dock is open
14625        workspace_a.update_in(cx, |workspace, window, cx| {
14626            assert!(
14627                workspace.right_dock().read(cx).is_open(),
14628                "dock should be open before switch"
14629            );
14630            assert!(
14631                panel.is_zoomed(window, cx),
14632                "panel should be zoomed before switch"
14633            );
14634            assert!(
14635                panel.read(cx).focus_handle(cx).contains_focused(window, cx),
14636                "panel should be focused before switch"
14637            );
14638        });
14639
14640        // Switch to workspace B
14641        multi_workspace_handle
14642            .update(cx, |mw, window, cx| {
14643                let workspace = mw.workspaces().nth(1).unwrap().clone();
14644                mw.activate(workspace, window, cx);
14645            })
14646            .unwrap();
14647        cx.run_until_parked();
14648
14649        // Switch back to workspace A
14650        multi_workspace_handle
14651            .update(cx, |mw, window, cx| {
14652                let workspace = mw.workspaces().next().unwrap().clone();
14653                mw.activate(workspace, window, cx);
14654            })
14655            .unwrap();
14656        cx.run_until_parked();
14657
14658        // Verify the panel is still zoomed and the dock is still open
14659        workspace_a.update_in(cx, |workspace, window, cx| {
14660            assert!(
14661                workspace.right_dock().read(cx).is_open(),
14662                "dock should still be open after switching back"
14663            );
14664            assert!(
14665                panel.is_zoomed(window, cx),
14666                "panel should still be zoomed after switching back"
14667            );
14668        });
14669    }
14670
14671    fn pane_items_paths(pane: &Entity<Pane>, cx: &App) -> Vec<String> {
14672        pane.read(cx)
14673            .items()
14674            .flat_map(|item| {
14675                item.project_paths(cx)
14676                    .into_iter()
14677                    .map(|path| path.path.display(PathStyle::local()).into_owned())
14678            })
14679            .collect()
14680    }
14681
14682    pub fn init_test(cx: &mut TestAppContext) {
14683        cx.update(|cx| {
14684            let settings_store = SettingsStore::test(cx);
14685            cx.set_global(settings_store);
14686            cx.set_global(db::AppDatabase::test_new());
14687            theme_settings::init(theme::LoadThemes::JustBase, cx);
14688        });
14689    }
14690
14691    #[gpui::test]
14692    async fn test_toggle_theme_mode_persists_and_updates_active_theme(cx: &mut TestAppContext) {
14693        use settings::{ThemeName, ThemeSelection};
14694        use theme::SystemAppearance;
14695        use zed_actions::theme::ToggleMode;
14696
14697        init_test(cx);
14698
14699        let fs = FakeFs::new(cx.executor());
14700        let settings_fs: Arc<dyn fs::Fs> = fs.clone();
14701
14702        fs.insert_tree(path!("/root"), json!({ "file.rs": "fn main() {}\n" }))
14703            .await;
14704
14705        // Build a test project and workspace view so the test can invoke
14706        // the workspace action handler the same way the UI would.
14707        let project = Project::test(fs.clone(), [path!("/root").as_ref()], cx).await;
14708        let (workspace, cx) =
14709            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
14710
14711        // Seed the settings file with a plain static light theme so the
14712        // first toggle always starts from a known persisted state.
14713        workspace.update_in(cx, |_workspace, _window, cx| {
14714            *SystemAppearance::global_mut(cx) = SystemAppearance(theme::Appearance::Light);
14715            settings::update_settings_file(settings_fs.clone(), cx, |settings, _cx| {
14716                settings.theme.theme = Some(ThemeSelection::Static(ThemeName("One Light".into())));
14717            });
14718        });
14719        cx.executor().advance_clock(Duration::from_millis(200));
14720        cx.run_until_parked();
14721
14722        // Confirm the initial persisted settings contain the static theme
14723        // we just wrote before any toggling happens.
14724        let settings_text = SettingsStore::load_settings(&settings_fs).await.unwrap();
14725        assert!(settings_text.contains(r#""theme": "One Light""#));
14726
14727        // Toggle once. This should migrate the persisted theme settings
14728        // into light/dark slots and enable system mode.
14729        workspace.update_in(cx, |workspace, window, cx| {
14730            workspace.toggle_theme_mode(&ToggleMode, window, cx);
14731        });
14732        cx.executor().advance_clock(Duration::from_millis(200));
14733        cx.run_until_parked();
14734
14735        // 1. Static -> Dynamic
14736        // this assertion checks theme changed from static to dynamic.
14737        let settings_text = SettingsStore::load_settings(&settings_fs).await.unwrap();
14738        let parsed: serde_json::Value = settings::parse_json_with_comments(&settings_text).unwrap();
14739        assert_eq!(
14740            parsed["theme"],
14741            serde_json::json!({
14742                "mode": "system",
14743                "light": "One Light",
14744                "dark": "One Dark"
14745            })
14746        );
14747
14748        // 2. Toggle again, suppose it will change the mode to light
14749        workspace.update_in(cx, |workspace, window, cx| {
14750            workspace.toggle_theme_mode(&ToggleMode, window, cx);
14751        });
14752        cx.executor().advance_clock(Duration::from_millis(200));
14753        cx.run_until_parked();
14754
14755        let settings_text = SettingsStore::load_settings(&settings_fs).await.unwrap();
14756        assert!(settings_text.contains(r#""mode": "light""#));
14757    }
14758
14759    fn dirty_project_item(id: u64, path: &str, cx: &mut App) -> Entity<TestProjectItem> {
14760        let item = TestProjectItem::new(id, path, cx);
14761        item.update(cx, |item, _| {
14762            item.is_dirty = true;
14763        });
14764        item
14765    }
14766
14767    #[gpui::test]
14768    async fn test_zoomed_panel_without_pane_preserved_on_center_focus(
14769        cx: &mut gpui::TestAppContext,
14770    ) {
14771        init_test(cx);
14772        let fs = FakeFs::new(cx.executor());
14773
14774        let project = Project::test(fs, [], cx).await;
14775        let (workspace, cx) =
14776            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
14777
14778        let panel = workspace.update_in(cx, |workspace, window, cx| {
14779            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
14780            workspace.add_panel(panel.clone(), window, cx);
14781            workspace
14782                .right_dock()
14783                .update(cx, |dock, cx| dock.set_open(true, window, cx));
14784            panel
14785        });
14786
14787        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
14788        pane.update_in(cx, |pane, window, cx| {
14789            let item = cx.new(TestItem::new);
14790            pane.add_item(Box::new(item), true, true, None, window, cx);
14791        });
14792
14793        // Transfer focus to the panel, then zoom it. Using toggle_panel_focus
14794        // mirrors the real-world flow and avoids side effects from directly
14795        // focusing the panel while the center pane is active.
14796        workspace.update_in(cx, |workspace, window, cx| {
14797            workspace.toggle_panel_focus::<TestPanel>(window, cx);
14798        });
14799
14800        panel.update_in(cx, |panel, window, cx| {
14801            panel.set_zoomed(true, window, cx);
14802        });
14803
14804        workspace.update_in(cx, |workspace, window, cx| {
14805            assert!(workspace.right_dock().read(cx).is_open());
14806            assert!(panel.is_zoomed(window, cx));
14807            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
14808        });
14809
14810        // Simulate a spurious pane::Event::Focus on the center pane while the
14811        // panel still has focus. This mirrors what happens during macOS window
14812        // activation: the center pane fires a focus event even though actual
14813        // focus remains on the dock panel.
14814        pane.update_in(cx, |_, _, cx| {
14815            cx.emit(pane::Event::Focus);
14816        });
14817
14818        // The dock must remain open because the panel had focus at the time the
14819        // event was processed. Before the fix, dock_to_preserve was None for
14820        // panels that don't implement pane(), causing the dock to close.
14821        workspace.update_in(cx, |workspace, window, cx| {
14822            assert!(
14823                workspace.right_dock().read(cx).is_open(),
14824                "Dock should stay open when its zoomed panel (without pane()) still has focus"
14825            );
14826            assert!(panel.is_zoomed(window, cx));
14827        });
14828    }
14829
14830    #[gpui::test]
14831    async fn test_panels_stay_open_after_position_change_and_settings_update(
14832        cx: &mut gpui::TestAppContext,
14833    ) {
14834        init_test(cx);
14835        let fs = FakeFs::new(cx.executor());
14836        let project = Project::test(fs, [], cx).await;
14837        let (workspace, cx) =
14838            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
14839
14840        // Add two panels to the left dock and open it.
14841        let (panel_a, panel_b) = workspace.update_in(cx, |workspace, window, cx| {
14842            let panel_a = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
14843            let panel_b = cx.new(|cx| TestPanel::new(DockPosition::Left, 101, cx));
14844            workspace.add_panel(panel_a.clone(), window, cx);
14845            workspace.add_panel(panel_b.clone(), window, cx);
14846            workspace.left_dock().update(cx, |dock, cx| {
14847                dock.set_open(true, window, cx);
14848                dock.activate_panel(0, window, cx);
14849            });
14850            (panel_a, panel_b)
14851        });
14852
14853        workspace.update_in(cx, |workspace, _, cx| {
14854            assert!(workspace.left_dock().read(cx).is_open());
14855        });
14856
14857        // Simulate a feature flag changing default dock positions: both panels
14858        // move from Left to Right.
14859        workspace.update_in(cx, |_workspace, _window, cx| {
14860            panel_a.update(cx, |p, _cx| p.position = DockPosition::Right);
14861            panel_b.update(cx, |p, _cx| p.position = DockPosition::Right);
14862            cx.update_global::<SettingsStore, _>(|_, _| {});
14863        });
14864
14865        // Both panels should now be in the right dock.
14866        workspace.update_in(cx, |workspace, _, cx| {
14867            let right_dock = workspace.right_dock().read(cx);
14868            assert_eq!(right_dock.panels_len(), 2);
14869        });
14870
14871        // Open the right dock and activate panel_b (simulating the user
14872        // opening the panel after it moved).
14873        workspace.update_in(cx, |workspace, window, cx| {
14874            workspace.right_dock().update(cx, |dock, cx| {
14875                dock.set_open(true, window, cx);
14876                dock.activate_panel(1, window, cx);
14877            });
14878        });
14879
14880        // Now trigger another SettingsStore change
14881        workspace.update_in(cx, |_workspace, _window, cx| {
14882            cx.update_global::<SettingsStore, _>(|_, _| {});
14883        });
14884
14885        workspace.update_in(cx, |workspace, _, cx| {
14886            assert!(
14887                workspace.right_dock().read(cx).is_open(),
14888                "Right dock should still be open after a settings change"
14889            );
14890            assert_eq!(
14891                workspace.right_dock().read(cx).panels_len(),
14892                2,
14893                "Both panels should still be in the right dock"
14894            );
14895        });
14896    }
14897}