workspace.rs

    1pub mod dock;
    2pub mod history_manager;
    3pub mod invalid_item_view;
    4pub mod item;
    5mod modal_layer;
    6pub mod notifications;
    7pub mod pane;
    8pub mod pane_group;
    9mod path_list;
   10mod persistence;
   11pub mod searchable;
   12mod security_modal;
   13pub mod shared_screen;
   14mod status_bar;
   15pub mod tasks;
   16mod theme_preview;
   17mod toast_layer;
   18mod toolbar;
   19pub mod utility_pane;
   20pub mod welcome;
   21mod workspace_settings;
   22
   23pub use crate::notifications::NotificationFrame;
   24pub use dock::Panel;
   25pub use path_list::PathList;
   26pub use toast_layer::{ToastAction, ToastLayer, ToastView};
   27
   28use anyhow::{Context as _, Result, anyhow};
   29use call::{ActiveCall, call_settings::CallSettings};
   30use client::{
   31    ChannelId, Client, ErrorExt, Status, TypedEnvelope, UserStore,
   32    proto::{self, ErrorCode, PanelId, PeerId},
   33};
   34use collections::{HashMap, HashSet, hash_map};
   35use dock::{Dock, DockPosition, PanelButtons, PanelHandle, RESIZE_HANDLE_SIZE};
   36use feature_flags::{AgentV2FeatureFlag, FeatureFlagAppExt};
   37use futures::{
   38    Future, FutureExt, StreamExt,
   39    channel::{
   40        mpsc::{self, UnboundedReceiver, UnboundedSender},
   41        oneshot,
   42    },
   43    future::{Shared, try_join_all},
   44};
   45use gpui::{
   46    Action, AnyEntity, AnyView, AnyWeakView, App, AsyncApp, AsyncWindowContext, Bounds, Context,
   47    CursorStyle, Decorations, DragMoveEvent, Entity, EntityId, EventEmitter, FocusHandle,
   48    Focusable, Global, HitboxBehavior, Hsla, KeyContext, Keystroke, ManagedView, MouseButton,
   49    PathPromptOptions, Point, PromptLevel, Render, ResizeEdge, Size, Stateful, Subscription,
   50    SystemWindowTabController, Task, Tiling, WeakEntity, WindowBounds, WindowHandle, WindowId,
   51    WindowOptions, actions, canvas, point, relative, size, transparent_black,
   52};
   53pub use history_manager::*;
   54pub use item::{
   55    FollowableItem, FollowableItemHandle, Item, ItemHandle, ItemSettings, PreviewTabsSettings,
   56    ProjectItem, SerializableItem, SerializableItemHandle, WeakItemHandle,
   57};
   58use itertools::Itertools;
   59use language::{Buffer, LanguageRegistry, Rope, language_settings::all_language_settings};
   60pub use modal_layer::*;
   61use node_runtime::NodeRuntime;
   62use notifications::{
   63    DetachAndPromptErr, Notifications, dismiss_app_notification,
   64    simple_message_notification::MessageNotification,
   65};
   66pub use pane::*;
   67pub use pane_group::{
   68    ActivePaneDecorator, HANDLE_HITBOX_SIZE, Member, PaneAxis, PaneGroup, PaneRenderContext,
   69    SplitDirection,
   70};
   71use persistence::{DB, SerializedWindowBounds, model::SerializedWorkspace};
   72pub use persistence::{
   73    DB as WORKSPACE_DB, WorkspaceDb, delete_unloaded_items,
   74    model::{ItemId, SerializedWorkspaceLocation},
   75};
   76use postage::stream::Stream;
   77use project::{
   78    DirectoryLister, Project, ProjectEntryId, ProjectPath, ResolvedPath, Worktree, WorktreeId,
   79    WorktreeSettings,
   80    debugger::{breakpoint_store::BreakpointStoreEvent, session::ThreadStatus},
   81    project_settings::ProjectSettings,
   82    toolchain_store::ToolchainStoreEvent,
   83    trusted_worktrees::{RemoteHostLocation, TrustedWorktrees, TrustedWorktreesEvent},
   84};
   85use remote::{
   86    RemoteClientDelegate, RemoteConnection, RemoteConnectionOptions,
   87    remote_client::ConnectionIdentifier,
   88};
   89use schemars::JsonSchema;
   90use serde::Deserialize;
   91use session::AppSession;
   92use settings::{
   93    CenteredPaddingSettings, Settings, SettingsLocation, SettingsStore, update_settings_file,
   94};
   95use shared_screen::SharedScreen;
   96use sqlez::{
   97    bindable::{Bind, Column, StaticColumnCount},
   98    statement::Statement,
   99};
  100use status_bar::StatusBar;
  101pub use status_bar::StatusItemView;
  102use std::{
  103    any::TypeId,
  104    borrow::Cow,
  105    cell::RefCell,
  106    cmp,
  107    collections::{VecDeque, hash_map::DefaultHasher},
  108    env,
  109    hash::{Hash, Hasher},
  110    path::{Path, PathBuf},
  111    process::ExitStatus,
  112    rc::Rc,
  113    sync::{
  114        Arc, LazyLock, Weak,
  115        atomic::{AtomicBool, AtomicUsize},
  116    },
  117    time::Duration,
  118};
  119use task::{DebugScenario, SpawnInTerminal, TaskContext};
  120use theme::{ActiveTheme, GlobalTheme, SystemAppearance, ThemeSettings};
  121pub use toolbar::{Toolbar, ToolbarItemEvent, ToolbarItemLocation, ToolbarItemView};
  122pub use ui;
  123use ui::{Window, prelude::*};
  124use util::{
  125    ResultExt, TryFutureExt,
  126    paths::{PathStyle, SanitizedPath},
  127    rel_path::RelPath,
  128    serde::default_true,
  129};
  130use uuid::Uuid;
  131pub use workspace_settings::{
  132    AutosaveSetting, BottomDockLayout, RestoreOnStartupBehavior, StatusBarSettings, TabBarSettings,
  133    WorkspaceSettings,
  134};
  135use zed_actions::{Spawn, feedback::FileBugReport};
  136
  137use crate::{
  138    item::ItemBufferKind,
  139    notifications::NotificationId,
  140    utility_pane::{UTILITY_PANE_MIN_WIDTH, utility_slot_for_dock_position},
  141};
  142use crate::{
  143    persistence::{
  144        SerializedAxis,
  145        model::{DockData, DockStructure, SerializedItem, SerializedPane, SerializedPaneGroup},
  146    },
  147    security_modal::SecurityModal,
  148    utility_pane::{DraggedUtilityPane, UtilityPaneFrame, UtilityPaneSlot, UtilityPaneState},
  149};
  150
  151pub const SERIALIZATION_THROTTLE_TIME: Duration = Duration::from_millis(200);
  152
  153static ZED_WINDOW_SIZE: LazyLock<Option<Size<Pixels>>> = LazyLock::new(|| {
  154    env::var("ZED_WINDOW_SIZE")
  155        .ok()
  156        .as_deref()
  157        .and_then(parse_pixel_size_env_var)
  158});
  159
  160static ZED_WINDOW_POSITION: LazyLock<Option<Point<Pixels>>> = LazyLock::new(|| {
  161    env::var("ZED_WINDOW_POSITION")
  162        .ok()
  163        .as_deref()
  164        .and_then(parse_pixel_position_env_var)
  165});
  166
  167pub trait TerminalProvider {
  168    fn spawn(
  169        &self,
  170        task: SpawnInTerminal,
  171        window: &mut Window,
  172        cx: &mut App,
  173    ) -> Task<Option<Result<ExitStatus>>>;
  174}
  175
  176pub trait DebuggerProvider {
  177    // `active_buffer` is used to resolve build task's name against language-specific tasks.
  178    fn start_session(
  179        &self,
  180        definition: DebugScenario,
  181        task_context: TaskContext,
  182        active_buffer: Option<Entity<Buffer>>,
  183        worktree_id: Option<WorktreeId>,
  184        window: &mut Window,
  185        cx: &mut App,
  186    );
  187
  188    fn spawn_task_or_modal(
  189        &self,
  190        workspace: &mut Workspace,
  191        action: &Spawn,
  192        window: &mut Window,
  193        cx: &mut Context<Workspace>,
  194    );
  195
  196    fn task_scheduled(&self, cx: &mut App);
  197    fn debug_scenario_scheduled(&self, cx: &mut App);
  198    fn debug_scenario_scheduled_last(&self, cx: &App) -> bool;
  199
  200    fn active_thread_state(&self, cx: &App) -> Option<ThreadStatus>;
  201}
  202
  203actions!(
  204    workspace,
  205    [
  206        /// Activates the next pane in the workspace.
  207        ActivateNextPane,
  208        /// Activates the previous pane in the workspace.
  209        ActivatePreviousPane,
  210        /// Switches to the next window.
  211        ActivateNextWindow,
  212        /// Switches to the previous window.
  213        ActivatePreviousWindow,
  214        /// Adds a folder to the current project.
  215        AddFolderToProject,
  216        /// Clears all notifications.
  217        ClearAllNotifications,
  218        /// Clears all navigation history, including forward/backward navigation, recently opened files, and recently closed tabs. **This action is irreversible**.
  219        ClearNavigationHistory,
  220        /// Closes the active dock.
  221        CloseActiveDock,
  222        /// Closes all docks.
  223        CloseAllDocks,
  224        /// Toggles all docks.
  225        ToggleAllDocks,
  226        /// Closes the current window.
  227        CloseWindow,
  228        /// Opens the feedback dialog.
  229        Feedback,
  230        /// Follows the next collaborator in the session.
  231        FollowNextCollaborator,
  232        /// Moves the focused panel to the next position.
  233        MoveFocusedPanelToNextPosition,
  234        /// Opens a new terminal in the center.
  235        NewCenterTerminal,
  236        /// Creates a new file.
  237        NewFile,
  238        /// Creates a new file in a vertical split.
  239        NewFileSplitVertical,
  240        /// Creates a new file in a horizontal split.
  241        NewFileSplitHorizontal,
  242        /// Opens a new search.
  243        NewSearch,
  244        /// Opens a new terminal.
  245        NewTerminal,
  246        /// Opens a new window.
  247        NewWindow,
  248        /// Opens a file or directory.
  249        Open,
  250        /// Opens multiple files.
  251        OpenFiles,
  252        /// Opens the current location in terminal.
  253        OpenInTerminal,
  254        /// Opens the component preview.
  255        OpenComponentPreview,
  256        /// Reloads the active item.
  257        ReloadActiveItem,
  258        /// Resets the active dock to its default size.
  259        ResetActiveDockSize,
  260        /// Resets all open docks to their default sizes.
  261        ResetOpenDocksSize,
  262        /// Reloads the application
  263        Reload,
  264        /// Saves the current file with a new name.
  265        SaveAs,
  266        /// Saves without formatting.
  267        SaveWithoutFormat,
  268        /// Shuts down all debug adapters.
  269        ShutdownDebugAdapters,
  270        /// Suppresses the current notification.
  271        SuppressNotification,
  272        /// Toggles the bottom dock.
  273        ToggleBottomDock,
  274        /// Toggles centered layout mode.
  275        ToggleCenteredLayout,
  276        /// Toggles edit prediction feature globally for all files.
  277        ToggleEditPrediction,
  278        /// Toggles the left dock.
  279        ToggleLeftDock,
  280        /// Toggles the right dock.
  281        ToggleRightDock,
  282        /// Toggles zoom on the active pane.
  283        ToggleZoom,
  284        /// Toggles read-only mode for the active item (if supported by that item).
  285        ToggleReadOnlyFile,
  286        /// Zooms in on the active pane.
  287        ZoomIn,
  288        /// Zooms out of the active pane.
  289        ZoomOut,
  290        /// If any worktrees are in restricted mode, shows a modal with possible actions.
  291        /// If the modal is shown already, closes it without trusting any worktree.
  292        ToggleWorktreeSecurity,
  293        /// Clears all trusted worktrees, placing them in restricted mode on next open.
  294        /// Requires restart to take effect on already opened projects.
  295        ClearTrustedWorktrees,
  296        /// Stops following a collaborator.
  297        Unfollow,
  298        /// Restores the banner.
  299        RestoreBanner,
  300        /// Toggles expansion of the selected item.
  301        ToggleExpandItem,
  302    ]
  303);
  304
  305/// Activates a specific pane by its index.
  306#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  307#[action(namespace = workspace)]
  308pub struct ActivatePane(pub usize);
  309
  310/// Moves an item to a specific pane by index.
  311#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  312#[action(namespace = workspace)]
  313#[serde(deny_unknown_fields)]
  314pub struct MoveItemToPane {
  315    #[serde(default = "default_1")]
  316    pub destination: usize,
  317    #[serde(default = "default_true")]
  318    pub focus: bool,
  319    #[serde(default)]
  320    pub clone: bool,
  321}
  322
  323fn default_1() -> usize {
  324    1
  325}
  326
  327/// Moves an item to a pane in the specified direction.
  328#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  329#[action(namespace = workspace)]
  330#[serde(deny_unknown_fields)]
  331pub struct MoveItemToPaneInDirection {
  332    #[serde(default = "default_right")]
  333    pub direction: SplitDirection,
  334    #[serde(default = "default_true")]
  335    pub focus: bool,
  336    #[serde(default)]
  337    pub clone: bool,
  338}
  339
  340/// Creates a new file in a split of the desired direction.
  341#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  342#[action(namespace = workspace)]
  343#[serde(deny_unknown_fields)]
  344pub struct NewFileSplit(pub SplitDirection);
  345
  346fn default_right() -> SplitDirection {
  347    SplitDirection::Right
  348}
  349
  350/// Saves all open files in the workspace.
  351#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  352#[action(namespace = workspace)]
  353#[serde(deny_unknown_fields)]
  354pub struct SaveAll {
  355    #[serde(default)]
  356    pub save_intent: Option<SaveIntent>,
  357}
  358
  359/// Saves the current file with the specified options.
  360#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  361#[action(namespace = workspace)]
  362#[serde(deny_unknown_fields)]
  363pub struct Save {
  364    #[serde(default)]
  365    pub save_intent: Option<SaveIntent>,
  366}
  367
  368/// Closes all items and panes in the workspace.
  369#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  370#[action(namespace = workspace)]
  371#[serde(deny_unknown_fields)]
  372pub struct CloseAllItemsAndPanes {
  373    #[serde(default)]
  374    pub save_intent: Option<SaveIntent>,
  375}
  376
  377/// Closes all inactive tabs and panes in the workspace.
  378#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  379#[action(namespace = workspace)]
  380#[serde(deny_unknown_fields)]
  381pub struct CloseInactiveTabsAndPanes {
  382    #[serde(default)]
  383    pub save_intent: Option<SaveIntent>,
  384}
  385
  386/// Sends a sequence of keystrokes to the active element.
  387#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  388#[action(namespace = workspace)]
  389pub struct SendKeystrokes(pub String);
  390
  391actions!(
  392    project_symbols,
  393    [
  394        /// Toggles the project symbols search.
  395        #[action(name = "Toggle")]
  396        ToggleProjectSymbols
  397    ]
  398);
  399
  400/// Toggles the file finder interface.
  401#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  402#[action(namespace = file_finder, name = "Toggle")]
  403#[serde(deny_unknown_fields)]
  404pub struct ToggleFileFinder {
  405    #[serde(default)]
  406    pub separate_history: bool,
  407}
  408
  409/// Increases size of a currently focused dock by a given amount of pixels.
  410#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  411#[action(namespace = workspace)]
  412#[serde(deny_unknown_fields)]
  413pub struct IncreaseActiveDockSize {
  414    /// For 0px parameter, uses UI font size value.
  415    #[serde(default)]
  416    pub px: u32,
  417}
  418
  419/// Decreases size of a currently focused dock by a given amount of pixels.
  420#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  421#[action(namespace = workspace)]
  422#[serde(deny_unknown_fields)]
  423pub struct DecreaseActiveDockSize {
  424    /// For 0px parameter, uses UI font size value.
  425    #[serde(default)]
  426    pub px: u32,
  427}
  428
  429/// Increases size of all currently visible docks uniformly, by a given amount of pixels.
  430#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  431#[action(namespace = workspace)]
  432#[serde(deny_unknown_fields)]
  433pub struct IncreaseOpenDocksSize {
  434    /// For 0px parameter, uses UI font size value.
  435    #[serde(default)]
  436    pub px: u32,
  437}
  438
  439/// Decreases size of all currently visible docks uniformly, by a given amount of pixels.
  440#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  441#[action(namespace = workspace)]
  442#[serde(deny_unknown_fields)]
  443pub struct DecreaseOpenDocksSize {
  444    /// For 0px parameter, uses UI font size value.
  445    #[serde(default)]
  446    pub px: u32,
  447}
  448
  449actions!(
  450    workspace,
  451    [
  452        /// Activates the pane to the left.
  453        ActivatePaneLeft,
  454        /// Activates the pane to the right.
  455        ActivatePaneRight,
  456        /// Activates the pane above.
  457        ActivatePaneUp,
  458        /// Activates the pane below.
  459        ActivatePaneDown,
  460        /// Swaps the current pane with the one to the left.
  461        SwapPaneLeft,
  462        /// Swaps the current pane with the one to the right.
  463        SwapPaneRight,
  464        /// Swaps the current pane with the one above.
  465        SwapPaneUp,
  466        /// Swaps the current pane with the one below.
  467        SwapPaneDown,
  468        // Swaps the current pane with the first available adjacent pane (searching in order: below, above, right, left) and activates that pane.
  469        SwapPaneAdjacent,
  470        /// Move the current pane to be at the far left.
  471        MovePaneLeft,
  472        /// Move the current pane to be at the far right.
  473        MovePaneRight,
  474        /// Move the current pane to be at the very top.
  475        MovePaneUp,
  476        /// Move the current pane to be at the very bottom.
  477        MovePaneDown,
  478    ]
  479);
  480
  481#[derive(PartialEq, Eq, Debug)]
  482pub enum CloseIntent {
  483    /// Quit the program entirely.
  484    Quit,
  485    /// Close a window.
  486    CloseWindow,
  487    /// Replace the workspace in an existing window.
  488    ReplaceWindow,
  489}
  490
  491#[derive(Clone)]
  492pub struct Toast {
  493    id: NotificationId,
  494    msg: Cow<'static, str>,
  495    autohide: bool,
  496    on_click: Option<(Cow<'static, str>, Arc<dyn Fn(&mut Window, &mut App)>)>,
  497}
  498
  499impl Toast {
  500    pub fn new<I: Into<Cow<'static, str>>>(id: NotificationId, msg: I) -> Self {
  501        Toast {
  502            id,
  503            msg: msg.into(),
  504            on_click: None,
  505            autohide: false,
  506        }
  507    }
  508
  509    pub fn on_click<F, M>(mut self, message: M, on_click: F) -> Self
  510    where
  511        M: Into<Cow<'static, str>>,
  512        F: Fn(&mut Window, &mut App) + 'static,
  513    {
  514        self.on_click = Some((message.into(), Arc::new(on_click)));
  515        self
  516    }
  517
  518    pub fn autohide(mut self) -> Self {
  519        self.autohide = true;
  520        self
  521    }
  522}
  523
  524impl PartialEq for Toast {
  525    fn eq(&self, other: &Self) -> bool {
  526        self.id == other.id
  527            && self.msg == other.msg
  528            && self.on_click.is_some() == other.on_click.is_some()
  529    }
  530}
  531
  532/// Opens a new terminal with the specified working directory.
  533#[derive(Debug, Default, Clone, Deserialize, PartialEq, JsonSchema, Action)]
  534#[action(namespace = workspace)]
  535#[serde(deny_unknown_fields)]
  536pub struct OpenTerminal {
  537    pub working_directory: PathBuf,
  538}
  539
  540#[derive(Clone, Copy, Debug, Default, Hash, PartialEq, Eq, PartialOrd, Ord)]
  541pub struct WorkspaceId(i64);
  542
  543impl StaticColumnCount for WorkspaceId {}
  544impl Bind for WorkspaceId {
  545    fn bind(&self, statement: &Statement, start_index: i32) -> Result<i32> {
  546        self.0.bind(statement, start_index)
  547    }
  548}
  549impl Column for WorkspaceId {
  550    fn column(statement: &mut Statement, start_index: i32) -> Result<(Self, i32)> {
  551        i64::column(statement, start_index)
  552            .map(|(i, next_index)| (Self(i), next_index))
  553            .with_context(|| format!("Failed to read WorkspaceId at index {start_index}"))
  554    }
  555}
  556impl From<WorkspaceId> for i64 {
  557    fn from(val: WorkspaceId) -> Self {
  558        val.0
  559    }
  560}
  561
  562fn prompt_and_open_paths(app_state: Arc<AppState>, options: PathPromptOptions, cx: &mut App) {
  563    let paths = cx.prompt_for_paths(options);
  564    cx.spawn(
  565        async move |cx| match paths.await.anyhow().and_then(|res| res) {
  566            Ok(Some(paths)) => {
  567                cx.update(|cx| {
  568                    open_paths(&paths, app_state, OpenOptions::default(), cx).detach_and_log_err(cx)
  569                })
  570                .ok();
  571            }
  572            Ok(None) => {}
  573            Err(err) => {
  574                util::log_err(&err);
  575                cx.update(|cx| {
  576                    if let Some(workspace_window) = cx
  577                        .active_window()
  578                        .and_then(|window| window.downcast::<Workspace>())
  579                    {
  580                        workspace_window
  581                            .update(cx, |workspace, _, cx| {
  582                                workspace.show_portal_error(err.to_string(), cx);
  583                            })
  584                            .ok();
  585                    }
  586                })
  587                .ok();
  588            }
  589        },
  590    )
  591    .detach();
  592}
  593
  594pub fn init(app_state: Arc<AppState>, cx: &mut App) {
  595    component::init();
  596    theme_preview::init(cx);
  597    toast_layer::init(cx);
  598    history_manager::init(cx);
  599
  600    cx.on_action(|_: &CloseWindow, cx| Workspace::close_global(cx))
  601        .on_action(|_: &Reload, cx| reload(cx))
  602        .on_action({
  603            let app_state = Arc::downgrade(&app_state);
  604            move |_: &Open, cx: &mut App| {
  605                if let Some(app_state) = app_state.upgrade() {
  606                    prompt_and_open_paths(
  607                        app_state,
  608                        PathPromptOptions {
  609                            files: true,
  610                            directories: true,
  611                            multiple: true,
  612                            prompt: None,
  613                        },
  614                        cx,
  615                    );
  616                }
  617            }
  618        })
  619        .on_action({
  620            let app_state = Arc::downgrade(&app_state);
  621            move |_: &OpenFiles, cx: &mut App| {
  622                let directories = cx.can_select_mixed_files_and_dirs();
  623                if let Some(app_state) = app_state.upgrade() {
  624                    prompt_and_open_paths(
  625                        app_state,
  626                        PathPromptOptions {
  627                            files: true,
  628                            directories,
  629                            multiple: true,
  630                            prompt: None,
  631                        },
  632                        cx,
  633                    );
  634                }
  635            }
  636        });
  637}
  638
  639type BuildProjectItemFn =
  640    fn(AnyEntity, Entity<Project>, Option<&Pane>, &mut Window, &mut App) -> Box<dyn ItemHandle>;
  641
  642type BuildProjectItemForPathFn =
  643    fn(
  644        &Entity<Project>,
  645        &ProjectPath,
  646        &mut Window,
  647        &mut App,
  648    ) -> Option<Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>>>;
  649
  650#[derive(Clone, Default)]
  651struct ProjectItemRegistry {
  652    build_project_item_fns_by_type: HashMap<TypeId, BuildProjectItemFn>,
  653    build_project_item_for_path_fns: Vec<BuildProjectItemForPathFn>,
  654}
  655
  656impl ProjectItemRegistry {
  657    fn register<T: ProjectItem>(&mut self) {
  658        self.build_project_item_fns_by_type.insert(
  659            TypeId::of::<T::Item>(),
  660            |item, project, pane, window, cx| {
  661                let item = item.downcast().unwrap();
  662                Box::new(cx.new(|cx| T::for_project_item(project, pane, item, window, cx)))
  663                    as Box<dyn ItemHandle>
  664            },
  665        );
  666        self.build_project_item_for_path_fns
  667            .push(|project, project_path, window, cx| {
  668                let project_path = project_path.clone();
  669                let is_file = project
  670                    .read(cx)
  671                    .entry_for_path(&project_path, cx)
  672                    .is_some_and(|entry| entry.is_file());
  673                let entry_abs_path = project.read(cx).absolute_path(&project_path, cx);
  674                let is_local = project.read(cx).is_local();
  675                let project_item =
  676                    <T::Item as project::ProjectItem>::try_open(project, &project_path, cx)?;
  677                let project = project.clone();
  678                Some(window.spawn(cx, async move |cx| {
  679                    match project_item.await.with_context(|| {
  680                        format!(
  681                            "opening project path {:?}",
  682                            entry_abs_path.as_deref().unwrap_or(&project_path.path.as_std_path())
  683                        )
  684                    }) {
  685                        Ok(project_item) => {
  686                            let project_item = project_item;
  687                            let project_entry_id: Option<ProjectEntryId> =
  688                                project_item.read_with(cx, project::ProjectItem::entry_id)?;
  689                            let build_workspace_item = Box::new(
  690                                |pane: &mut Pane, window: &mut Window, cx: &mut Context<Pane>| {
  691                                    Box::new(cx.new(|cx| {
  692                                        T::for_project_item(
  693                                            project,
  694                                            Some(pane),
  695                                            project_item,
  696                                            window,
  697                                            cx,
  698                                        )
  699                                    })) as Box<dyn ItemHandle>
  700                                },
  701                            ) as Box<_>;
  702                            Ok((project_entry_id, build_workspace_item))
  703                        }
  704                        Err(e) => {
  705                            log::warn!("Failed to open a project item: {e:#}");
  706                            if e.error_code() == ErrorCode::Internal {
  707                                if let Some(abs_path) =
  708                                    entry_abs_path.as_deref().filter(|_| is_file)
  709                                {
  710                                    if let Some(broken_project_item_view) =
  711                                        cx.update(|window, cx| {
  712                                            T::for_broken_project_item(
  713                                                abs_path, is_local, &e, window, cx,
  714                                            )
  715                                        })?
  716                                    {
  717                                        let build_workspace_item = Box::new(
  718                                            move |_: &mut Pane, _: &mut Window, cx: &mut Context<Pane>| {
  719                                                cx.new(|_| broken_project_item_view).boxed_clone()
  720                                            },
  721                                        )
  722                                        as Box<_>;
  723                                        return Ok((None, build_workspace_item));
  724                                    }
  725                                }
  726                            }
  727                            Err(e)
  728                        }
  729                    }
  730                }))
  731            });
  732    }
  733
  734    fn open_path(
  735        &self,
  736        project: &Entity<Project>,
  737        path: &ProjectPath,
  738        window: &mut Window,
  739        cx: &mut App,
  740    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
  741        let Some(open_project_item) = self
  742            .build_project_item_for_path_fns
  743            .iter()
  744            .rev()
  745            .find_map(|open_project_item| open_project_item(project, path, window, cx))
  746        else {
  747            return Task::ready(Err(anyhow!("cannot open file {:?}", path.path)));
  748        };
  749        open_project_item
  750    }
  751
  752    fn build_item<T: project::ProjectItem>(
  753        &self,
  754        item: Entity<T>,
  755        project: Entity<Project>,
  756        pane: Option<&Pane>,
  757        window: &mut Window,
  758        cx: &mut App,
  759    ) -> Option<Box<dyn ItemHandle>> {
  760        let build = self
  761            .build_project_item_fns_by_type
  762            .get(&TypeId::of::<T>())?;
  763        Some(build(item.into_any(), project, pane, window, cx))
  764    }
  765}
  766
  767type WorkspaceItemBuilder =
  768    Box<dyn FnOnce(&mut Pane, &mut Window, &mut Context<Pane>) -> Box<dyn ItemHandle>>;
  769
  770impl Global for ProjectItemRegistry {}
  771
  772/// Registers a [ProjectItem] for the app. When opening a file, all the registered
  773/// items will get a chance to open the file, starting from the project item that
  774/// was added last.
  775pub fn register_project_item<I: ProjectItem>(cx: &mut App) {
  776    cx.default_global::<ProjectItemRegistry>().register::<I>();
  777}
  778
  779#[derive(Default)]
  780pub struct FollowableViewRegistry(HashMap<TypeId, FollowableViewDescriptor>);
  781
  782struct FollowableViewDescriptor {
  783    from_state_proto: fn(
  784        Entity<Workspace>,
  785        ViewId,
  786        &mut Option<proto::view::Variant>,
  787        &mut Window,
  788        &mut App,
  789    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>>,
  790    to_followable_view: fn(&AnyView) -> Box<dyn FollowableItemHandle>,
  791}
  792
  793impl Global for FollowableViewRegistry {}
  794
  795impl FollowableViewRegistry {
  796    pub fn register<I: FollowableItem>(cx: &mut App) {
  797        cx.default_global::<Self>().0.insert(
  798            TypeId::of::<I>(),
  799            FollowableViewDescriptor {
  800                from_state_proto: |workspace, id, state, window, cx| {
  801                    I::from_state_proto(workspace, id, state, window, cx).map(|task| {
  802                        cx.foreground_executor()
  803                            .spawn(async move { Ok(Box::new(task.await?) as Box<_>) })
  804                    })
  805                },
  806                to_followable_view: |view| Box::new(view.clone().downcast::<I>().unwrap()),
  807            },
  808        );
  809    }
  810
  811    pub fn from_state_proto(
  812        workspace: Entity<Workspace>,
  813        view_id: ViewId,
  814        mut state: Option<proto::view::Variant>,
  815        window: &mut Window,
  816        cx: &mut App,
  817    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>> {
  818        cx.update_default_global(|this: &mut Self, cx| {
  819            this.0.values().find_map(|descriptor| {
  820                (descriptor.from_state_proto)(workspace.clone(), view_id, &mut state, window, cx)
  821            })
  822        })
  823    }
  824
  825    pub fn to_followable_view(
  826        view: impl Into<AnyView>,
  827        cx: &App,
  828    ) -> Option<Box<dyn FollowableItemHandle>> {
  829        let this = cx.try_global::<Self>()?;
  830        let view = view.into();
  831        let descriptor = this.0.get(&view.entity_type())?;
  832        Some((descriptor.to_followable_view)(&view))
  833    }
  834}
  835
  836#[derive(Copy, Clone)]
  837struct SerializableItemDescriptor {
  838    deserialize: fn(
  839        Entity<Project>,
  840        WeakEntity<Workspace>,
  841        WorkspaceId,
  842        ItemId,
  843        &mut Window,
  844        &mut Context<Pane>,
  845    ) -> Task<Result<Box<dyn ItemHandle>>>,
  846    cleanup: fn(WorkspaceId, Vec<ItemId>, &mut Window, &mut App) -> Task<Result<()>>,
  847    view_to_serializable_item: fn(AnyView) -> Box<dyn SerializableItemHandle>,
  848}
  849
  850#[derive(Default)]
  851struct SerializableItemRegistry {
  852    descriptors_by_kind: HashMap<Arc<str>, SerializableItemDescriptor>,
  853    descriptors_by_type: HashMap<TypeId, SerializableItemDescriptor>,
  854}
  855
  856impl Global for SerializableItemRegistry {}
  857
  858impl SerializableItemRegistry {
  859    fn deserialize(
  860        item_kind: &str,
  861        project: Entity<Project>,
  862        workspace: WeakEntity<Workspace>,
  863        workspace_id: WorkspaceId,
  864        item_item: ItemId,
  865        window: &mut Window,
  866        cx: &mut Context<Pane>,
  867    ) -> Task<Result<Box<dyn ItemHandle>>> {
  868        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
  869            return Task::ready(Err(anyhow!(
  870                "cannot deserialize {}, descriptor not found",
  871                item_kind
  872            )));
  873        };
  874
  875        (descriptor.deserialize)(project, workspace, workspace_id, item_item, window, cx)
  876    }
  877
  878    fn cleanup(
  879        item_kind: &str,
  880        workspace_id: WorkspaceId,
  881        loaded_items: Vec<ItemId>,
  882        window: &mut Window,
  883        cx: &mut App,
  884    ) -> Task<Result<()>> {
  885        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
  886            return Task::ready(Err(anyhow!(
  887                "cannot cleanup {}, descriptor not found",
  888                item_kind
  889            )));
  890        };
  891
  892        (descriptor.cleanup)(workspace_id, loaded_items, window, cx)
  893    }
  894
  895    fn view_to_serializable_item_handle(
  896        view: AnyView,
  897        cx: &App,
  898    ) -> Option<Box<dyn SerializableItemHandle>> {
  899        let this = cx.try_global::<Self>()?;
  900        let descriptor = this.descriptors_by_type.get(&view.entity_type())?;
  901        Some((descriptor.view_to_serializable_item)(view))
  902    }
  903
  904    fn descriptor(item_kind: &str, cx: &App) -> Option<SerializableItemDescriptor> {
  905        let this = cx.try_global::<Self>()?;
  906        this.descriptors_by_kind.get(item_kind).copied()
  907    }
  908}
  909
  910pub fn register_serializable_item<I: SerializableItem>(cx: &mut App) {
  911    let serialized_item_kind = I::serialized_item_kind();
  912
  913    let registry = cx.default_global::<SerializableItemRegistry>();
  914    let descriptor = SerializableItemDescriptor {
  915        deserialize: |project, workspace, workspace_id, item_id, window, cx| {
  916            let task = I::deserialize(project, workspace, workspace_id, item_id, window, cx);
  917            cx.foreground_executor()
  918                .spawn(async { Ok(Box::new(task.await?) as Box<_>) })
  919        },
  920        cleanup: |workspace_id, loaded_items, window, cx| {
  921            I::cleanup(workspace_id, loaded_items, window, cx)
  922        },
  923        view_to_serializable_item: |view| Box::new(view.downcast::<I>().unwrap()),
  924    };
  925    registry
  926        .descriptors_by_kind
  927        .insert(Arc::from(serialized_item_kind), descriptor);
  928    registry
  929        .descriptors_by_type
  930        .insert(TypeId::of::<I>(), descriptor);
  931}
  932
  933pub struct AppState {
  934    pub languages: Arc<LanguageRegistry>,
  935    pub client: Arc<Client>,
  936    pub user_store: Entity<UserStore>,
  937    pub workspace_store: Entity<WorkspaceStore>,
  938    pub fs: Arc<dyn fs::Fs>,
  939    pub build_window_options: fn(Option<Uuid>, &mut App) -> WindowOptions,
  940    pub node_runtime: NodeRuntime,
  941    pub session: Entity<AppSession>,
  942}
  943
  944struct GlobalAppState(Weak<AppState>);
  945
  946impl Global for GlobalAppState {}
  947
  948pub struct WorkspaceStore {
  949    workspaces: HashSet<WindowHandle<Workspace>>,
  950    client: Arc<Client>,
  951    _subscriptions: Vec<client::Subscription>,
  952}
  953
  954#[derive(Copy, Clone, Debug, Hash, Eq, PartialEq, PartialOrd, Ord)]
  955pub enum CollaboratorId {
  956    PeerId(PeerId),
  957    Agent,
  958}
  959
  960impl From<PeerId> for CollaboratorId {
  961    fn from(peer_id: PeerId) -> Self {
  962        CollaboratorId::PeerId(peer_id)
  963    }
  964}
  965
  966impl From<&PeerId> for CollaboratorId {
  967    fn from(peer_id: &PeerId) -> Self {
  968        CollaboratorId::PeerId(*peer_id)
  969    }
  970}
  971
  972#[derive(PartialEq, Eq, PartialOrd, Ord, Debug)]
  973struct Follower {
  974    project_id: Option<u64>,
  975    peer_id: PeerId,
  976}
  977
  978impl AppState {
  979    #[track_caller]
  980    pub fn global(cx: &App) -> Weak<Self> {
  981        cx.global::<GlobalAppState>().0.clone()
  982    }
  983    pub fn try_global(cx: &App) -> Option<Weak<Self>> {
  984        cx.try_global::<GlobalAppState>()
  985            .map(|state| state.0.clone())
  986    }
  987    pub fn set_global(state: Weak<AppState>, cx: &mut App) {
  988        cx.set_global(GlobalAppState(state));
  989    }
  990
  991    #[cfg(any(test, feature = "test-support"))]
  992    pub fn test(cx: &mut App) -> Arc<Self> {
  993        use fs::Fs;
  994        use node_runtime::NodeRuntime;
  995        use session::Session;
  996        use settings::SettingsStore;
  997
  998        if !cx.has_global::<SettingsStore>() {
  999            let settings_store = SettingsStore::test(cx);
 1000            cx.set_global(settings_store);
 1001        }
 1002
 1003        let fs = fs::FakeFs::new(cx.background_executor().clone());
 1004        <dyn Fs>::set_global(fs.clone(), cx);
 1005        let languages = Arc::new(LanguageRegistry::test(cx.background_executor().clone()));
 1006        let clock = Arc::new(clock::FakeSystemClock::new());
 1007        let http_client = http_client::FakeHttpClient::with_404_response();
 1008        let client = Client::new(clock, http_client, cx);
 1009        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 1010        let user_store = cx.new(|cx| UserStore::new(client.clone(), cx));
 1011        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 1012
 1013        theme::init(theme::LoadThemes::JustBase, cx);
 1014        client::init(&client, cx);
 1015
 1016        Arc::new(Self {
 1017            client,
 1018            fs,
 1019            languages,
 1020            user_store,
 1021            workspace_store,
 1022            node_runtime: NodeRuntime::unavailable(),
 1023            build_window_options: |_, _| Default::default(),
 1024            session,
 1025        })
 1026    }
 1027}
 1028
 1029struct DelayedDebouncedEditAction {
 1030    task: Option<Task<()>>,
 1031    cancel_channel: Option<oneshot::Sender<()>>,
 1032}
 1033
 1034impl DelayedDebouncedEditAction {
 1035    fn new() -> DelayedDebouncedEditAction {
 1036        DelayedDebouncedEditAction {
 1037            task: None,
 1038            cancel_channel: None,
 1039        }
 1040    }
 1041
 1042    fn fire_new<F>(
 1043        &mut self,
 1044        delay: Duration,
 1045        window: &mut Window,
 1046        cx: &mut Context<Workspace>,
 1047        func: F,
 1048    ) where
 1049        F: 'static
 1050            + Send
 1051            + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> Task<Result<()>>,
 1052    {
 1053        if let Some(channel) = self.cancel_channel.take() {
 1054            _ = channel.send(());
 1055        }
 1056
 1057        let (sender, mut receiver) = oneshot::channel::<()>();
 1058        self.cancel_channel = Some(sender);
 1059
 1060        let previous_task = self.task.take();
 1061        self.task = Some(cx.spawn_in(window, async move |workspace, cx| {
 1062            let mut timer = cx.background_executor().timer(delay).fuse();
 1063            if let Some(previous_task) = previous_task {
 1064                previous_task.await;
 1065            }
 1066
 1067            futures::select_biased! {
 1068                _ = receiver => return,
 1069                    _ = timer => {}
 1070            }
 1071
 1072            if let Some(result) = workspace
 1073                .update_in(cx, |workspace, window, cx| (func)(workspace, window, cx))
 1074                .log_err()
 1075            {
 1076                result.await.log_err();
 1077            }
 1078        }));
 1079    }
 1080}
 1081
 1082pub enum Event {
 1083    PaneAdded(Entity<Pane>),
 1084    PaneRemoved,
 1085    ItemAdded {
 1086        item: Box<dyn ItemHandle>,
 1087    },
 1088    ActiveItemChanged,
 1089    ItemRemoved {
 1090        item_id: EntityId,
 1091    },
 1092    UserSavedItem {
 1093        pane: WeakEntity<Pane>,
 1094        item: Box<dyn WeakItemHandle>,
 1095        save_intent: SaveIntent,
 1096    },
 1097    ContactRequestedJoin(u64),
 1098    WorkspaceCreated(WeakEntity<Workspace>),
 1099    OpenBundledFile {
 1100        text: Cow<'static, str>,
 1101        title: &'static str,
 1102        language: &'static str,
 1103    },
 1104    ZoomChanged,
 1105    ModalOpened,
 1106}
 1107
 1108#[derive(Debug)]
 1109pub enum OpenVisible {
 1110    All,
 1111    None,
 1112    OnlyFiles,
 1113    OnlyDirectories,
 1114}
 1115
 1116enum WorkspaceLocation {
 1117    // Valid local paths or SSH project to serialize
 1118    Location(SerializedWorkspaceLocation, PathList),
 1119    // No valid location found hence clear session id
 1120    DetachFromSession,
 1121    // No valid location found to serialize
 1122    None,
 1123}
 1124
 1125type PromptForNewPath = Box<
 1126    dyn Fn(
 1127        &mut Workspace,
 1128        DirectoryLister,
 1129        &mut Window,
 1130        &mut Context<Workspace>,
 1131    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1132>;
 1133
 1134type PromptForOpenPath = Box<
 1135    dyn Fn(
 1136        &mut Workspace,
 1137        DirectoryLister,
 1138        &mut Window,
 1139        &mut Context<Workspace>,
 1140    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1141>;
 1142
 1143#[derive(Default)]
 1144struct DispatchingKeystrokes {
 1145    dispatched: HashSet<Vec<Keystroke>>,
 1146    queue: VecDeque<Keystroke>,
 1147    task: Option<Shared<Task<()>>>,
 1148}
 1149
 1150/// Collects everything project-related for a certain window opened.
 1151/// In some way, is a counterpart of a window, as the [`WindowHandle`] could be downcast into `Workspace`.
 1152///
 1153/// A `Workspace` usually consists of 1 or more projects, a central pane group, 3 docks and a status bar.
 1154/// The `Workspace` owns everybody's state and serves as a default, "global context",
 1155/// that can be used to register a global action to be triggered from any place in the window.
 1156pub struct Workspace {
 1157    weak_self: WeakEntity<Self>,
 1158    workspace_actions: Vec<Box<dyn Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div>>,
 1159    zoomed: Option<AnyWeakView>,
 1160    previous_dock_drag_coordinates: Option<Point<Pixels>>,
 1161    zoomed_position: Option<DockPosition>,
 1162    center: PaneGroup,
 1163    left_dock: Entity<Dock>,
 1164    bottom_dock: Entity<Dock>,
 1165    right_dock: Entity<Dock>,
 1166    panes: Vec<Entity<Pane>>,
 1167    panes_by_item: HashMap<EntityId, WeakEntity<Pane>>,
 1168    active_pane: Entity<Pane>,
 1169    last_active_center_pane: Option<WeakEntity<Pane>>,
 1170    last_active_view_id: Option<proto::ViewId>,
 1171    status_bar: Entity<StatusBar>,
 1172    modal_layer: Entity<ModalLayer>,
 1173    toast_layer: Entity<ToastLayer>,
 1174    titlebar_item: Option<AnyView>,
 1175    notifications: Notifications,
 1176    suppressed_notifications: HashSet<NotificationId>,
 1177    project: Entity<Project>,
 1178    follower_states: HashMap<CollaboratorId, FollowerState>,
 1179    last_leaders_by_pane: HashMap<WeakEntity<Pane>, CollaboratorId>,
 1180    window_edited: bool,
 1181    last_window_title: Option<String>,
 1182    dirty_items: HashMap<EntityId, Subscription>,
 1183    active_call: Option<(Entity<ActiveCall>, Vec<Subscription>)>,
 1184    leader_updates_tx: mpsc::UnboundedSender<(PeerId, proto::UpdateFollowers)>,
 1185    database_id: Option<WorkspaceId>,
 1186    app_state: Arc<AppState>,
 1187    dispatching_keystrokes: Rc<RefCell<DispatchingKeystrokes>>,
 1188    _subscriptions: Vec<Subscription>,
 1189    _apply_leader_updates: Task<Result<()>>,
 1190    _observe_current_user: Task<Result<()>>,
 1191    _schedule_serialize_workspace: Option<Task<()>>,
 1192    _schedule_serialize_ssh_paths: Option<Task<()>>,
 1193    pane_history_timestamp: Arc<AtomicUsize>,
 1194    bounds: Bounds<Pixels>,
 1195    pub centered_layout: bool,
 1196    bounds_save_task_queued: Option<Task<()>>,
 1197    on_prompt_for_new_path: Option<PromptForNewPath>,
 1198    on_prompt_for_open_path: Option<PromptForOpenPath>,
 1199    terminal_provider: Option<Box<dyn TerminalProvider>>,
 1200    debugger_provider: Option<Arc<dyn DebuggerProvider>>,
 1201    serializable_items_tx: UnboundedSender<Box<dyn SerializableItemHandle>>,
 1202    _items_serializer: Task<Result<()>>,
 1203    session_id: Option<String>,
 1204    scheduled_tasks: Vec<Task<()>>,
 1205    last_open_dock_positions: Vec<DockPosition>,
 1206    removing: bool,
 1207    utility_panes: UtilityPaneState,
 1208}
 1209
 1210impl EventEmitter<Event> for Workspace {}
 1211
 1212#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
 1213pub struct ViewId {
 1214    pub creator: CollaboratorId,
 1215    pub id: u64,
 1216}
 1217
 1218pub struct FollowerState {
 1219    center_pane: Entity<Pane>,
 1220    dock_pane: Option<Entity<Pane>>,
 1221    active_view_id: Option<ViewId>,
 1222    items_by_leader_view_id: HashMap<ViewId, FollowerView>,
 1223}
 1224
 1225struct FollowerView {
 1226    view: Box<dyn FollowableItemHandle>,
 1227    location: Option<proto::PanelId>,
 1228}
 1229
 1230impl Workspace {
 1231    pub fn new(
 1232        workspace_id: Option<WorkspaceId>,
 1233        project: Entity<Project>,
 1234        app_state: Arc<AppState>,
 1235        window: &mut Window,
 1236        cx: &mut Context<Self>,
 1237    ) -> Self {
 1238        if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1239            cx.subscribe(&trusted_worktrees, |_, worktrees_store, e, cx| {
 1240                if let TrustedWorktreesEvent::Trusted(..) = e {
 1241                    // Do not persist auto trusted worktrees
 1242                    if !ProjectSettings::get_global(cx).session.trust_all_worktrees {
 1243                        worktrees_store.update(cx, |worktrees_store, cx| {
 1244                            worktrees_store.schedule_serialization(
 1245                                cx,
 1246                                |new_trusted_worktrees, cx| {
 1247                                    let timeout =
 1248                                        cx.background_executor().timer(SERIALIZATION_THROTTLE_TIME);
 1249                                    cx.background_spawn(async move {
 1250                                        timeout.await;
 1251                                        persistence::DB
 1252                                            .save_trusted_worktrees(new_trusted_worktrees)
 1253                                            .await
 1254                                            .log_err();
 1255                                    })
 1256                                },
 1257                            )
 1258                        });
 1259                    }
 1260                }
 1261            })
 1262            .detach();
 1263
 1264            cx.observe_global::<SettingsStore>(|_, cx| {
 1265                if ProjectSettings::get_global(cx).session.trust_all_worktrees {
 1266                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1267                        trusted_worktrees.update(cx, |trusted_worktrees, cx| {
 1268                            trusted_worktrees.auto_trust_all(cx);
 1269                        })
 1270                    }
 1271                }
 1272            })
 1273            .detach();
 1274        }
 1275
 1276        cx.subscribe_in(&project, window, move |this, _, event, window, cx| {
 1277            match event {
 1278                project::Event::RemoteIdChanged(_) => {
 1279                    this.update_window_title(window, cx);
 1280                }
 1281
 1282                project::Event::CollaboratorLeft(peer_id) => {
 1283                    this.collaborator_left(*peer_id, window, cx);
 1284                }
 1285
 1286                project::Event::WorktreeRemoved(_) => {
 1287                    this.update_worktree_data(window, cx);
 1288                }
 1289
 1290                project::Event::WorktreeUpdatedEntries(..) | project::Event::WorktreeAdded(..) => {
 1291                    this.update_worktree_data(window, cx);
 1292                }
 1293
 1294                project::Event::DisconnectedFromHost => {
 1295                    this.update_window_edited(window, cx);
 1296                    let leaders_to_unfollow =
 1297                        this.follower_states.keys().copied().collect::<Vec<_>>();
 1298                    for leader_id in leaders_to_unfollow {
 1299                        this.unfollow(leader_id, window, cx);
 1300                    }
 1301                }
 1302
 1303                project::Event::DisconnectedFromRemote => {
 1304                    this.update_window_edited(window, cx);
 1305                }
 1306
 1307                project::Event::Closed => {
 1308                    window.remove_window();
 1309                }
 1310
 1311                project::Event::DeletedEntry(_, entry_id) => {
 1312                    for pane in this.panes.iter() {
 1313                        pane.update(cx, |pane, cx| {
 1314                            pane.handle_deleted_project_item(*entry_id, window, cx)
 1315                        });
 1316                    }
 1317                }
 1318
 1319                project::Event::Toast {
 1320                    notification_id,
 1321                    message,
 1322                } => this.show_notification(
 1323                    NotificationId::named(notification_id.clone()),
 1324                    cx,
 1325                    |cx| cx.new(|cx| MessageNotification::new(message.clone(), cx)),
 1326                ),
 1327
 1328                project::Event::HideToast { notification_id } => {
 1329                    this.dismiss_notification(&NotificationId::named(notification_id.clone()), cx)
 1330                }
 1331
 1332                project::Event::LanguageServerPrompt(request) => {
 1333                    struct LanguageServerPrompt;
 1334
 1335                    let mut hasher = DefaultHasher::new();
 1336                    request.lsp_name.as_str().hash(&mut hasher);
 1337                    let id = hasher.finish();
 1338
 1339                    this.show_notification(
 1340                        NotificationId::composite::<LanguageServerPrompt>(id as usize),
 1341                        cx,
 1342                        |cx| {
 1343                            cx.new(|cx| {
 1344                                notifications::LanguageServerPrompt::new(request.clone(), cx)
 1345                            })
 1346                        },
 1347                    );
 1348                }
 1349
 1350                project::Event::AgentLocationChanged => {
 1351                    this.handle_agent_location_changed(window, cx)
 1352                }
 1353
 1354                _ => {}
 1355            }
 1356            cx.notify()
 1357        })
 1358        .detach();
 1359
 1360        cx.subscribe_in(
 1361            &project.read(cx).breakpoint_store(),
 1362            window,
 1363            |workspace, _, event, window, cx| match event {
 1364                BreakpointStoreEvent::BreakpointsUpdated(_, _)
 1365                | BreakpointStoreEvent::BreakpointsCleared(_) => {
 1366                    workspace.serialize_workspace(window, cx);
 1367                }
 1368                BreakpointStoreEvent::SetDebugLine | BreakpointStoreEvent::ClearDebugLines => {}
 1369            },
 1370        )
 1371        .detach();
 1372        if let Some(toolchain_store) = project.read(cx).toolchain_store() {
 1373            cx.subscribe_in(
 1374                &toolchain_store,
 1375                window,
 1376                |workspace, _, event, window, cx| match event {
 1377                    ToolchainStoreEvent::CustomToolchainsModified => {
 1378                        workspace.serialize_workspace(window, cx);
 1379                    }
 1380                    _ => {}
 1381                },
 1382            )
 1383            .detach();
 1384        }
 1385
 1386        cx.on_focus_lost(window, |this, window, cx| {
 1387            let focus_handle = this.focus_handle(cx);
 1388            window.focus(&focus_handle, cx);
 1389        })
 1390        .detach();
 1391
 1392        let weak_handle = cx.entity().downgrade();
 1393        let pane_history_timestamp = Arc::new(AtomicUsize::new(0));
 1394
 1395        let center_pane = cx.new(|cx| {
 1396            let mut center_pane = Pane::new(
 1397                weak_handle.clone(),
 1398                project.clone(),
 1399                pane_history_timestamp.clone(),
 1400                None,
 1401                NewFile.boxed_clone(),
 1402                true,
 1403                window,
 1404                cx,
 1405            );
 1406            center_pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 1407            center_pane
 1408        });
 1409        cx.subscribe_in(&center_pane, window, Self::handle_pane_event)
 1410            .detach();
 1411
 1412        window.focus(&center_pane.focus_handle(cx), cx);
 1413
 1414        cx.emit(Event::PaneAdded(center_pane.clone()));
 1415
 1416        let window_handle = window.window_handle().downcast::<Workspace>().unwrap();
 1417        app_state.workspace_store.update(cx, |store, _| {
 1418            store.workspaces.insert(window_handle);
 1419        });
 1420
 1421        let mut current_user = app_state.user_store.read(cx).watch_current_user();
 1422        let mut connection_status = app_state.client.status();
 1423        let _observe_current_user = cx.spawn_in(window, async move |this, cx| {
 1424            current_user.next().await;
 1425            connection_status.next().await;
 1426            let mut stream =
 1427                Stream::map(current_user, drop).merge(Stream::map(connection_status, drop));
 1428
 1429            while stream.recv().await.is_some() {
 1430                this.update(cx, |_, cx| cx.notify())?;
 1431            }
 1432            anyhow::Ok(())
 1433        });
 1434
 1435        // All leader updates are enqueued and then processed in a single task, so
 1436        // that each asynchronous operation can be run in order.
 1437        let (leader_updates_tx, mut leader_updates_rx) =
 1438            mpsc::unbounded::<(PeerId, proto::UpdateFollowers)>();
 1439        let _apply_leader_updates = cx.spawn_in(window, async move |this, cx| {
 1440            while let Some((leader_id, update)) = leader_updates_rx.next().await {
 1441                Self::process_leader_update(&this, leader_id, update, cx)
 1442                    .await
 1443                    .log_err();
 1444            }
 1445
 1446            Ok(())
 1447        });
 1448
 1449        cx.emit(Event::WorkspaceCreated(weak_handle.clone()));
 1450        let modal_layer = cx.new(|_| ModalLayer::new());
 1451        let toast_layer = cx.new(|_| ToastLayer::new());
 1452        cx.subscribe(
 1453            &modal_layer,
 1454            |_, _, _: &modal_layer::ModalOpenedEvent, cx| {
 1455                cx.emit(Event::ModalOpened);
 1456            },
 1457        )
 1458        .detach();
 1459
 1460        let left_dock = Dock::new(DockPosition::Left, modal_layer.clone(), window, cx);
 1461        let bottom_dock = Dock::new(DockPosition::Bottom, modal_layer.clone(), window, cx);
 1462        let right_dock = Dock::new(DockPosition::Right, modal_layer.clone(), window, cx);
 1463        let left_dock_buttons = cx.new(|cx| PanelButtons::new(left_dock.clone(), cx));
 1464        let bottom_dock_buttons = cx.new(|cx| PanelButtons::new(bottom_dock.clone(), cx));
 1465        let right_dock_buttons = cx.new(|cx| PanelButtons::new(right_dock.clone(), cx));
 1466        let status_bar = cx.new(|cx| {
 1467            let mut status_bar = StatusBar::new(&center_pane.clone(), window, cx);
 1468            status_bar.add_left_item(left_dock_buttons, window, cx);
 1469            status_bar.add_right_item(right_dock_buttons, window, cx);
 1470            status_bar.add_right_item(bottom_dock_buttons, window, cx);
 1471            status_bar
 1472        });
 1473
 1474        let session_id = app_state.session.read(cx).id().to_owned();
 1475
 1476        let mut active_call = None;
 1477        if let Some(call) = ActiveCall::try_global(cx) {
 1478            let subscriptions = vec![cx.subscribe_in(&call, window, Self::on_active_call_event)];
 1479            active_call = Some((call, subscriptions));
 1480        }
 1481
 1482        let (serializable_items_tx, serializable_items_rx) =
 1483            mpsc::unbounded::<Box<dyn SerializableItemHandle>>();
 1484        let _items_serializer = cx.spawn_in(window, async move |this, cx| {
 1485            Self::serialize_items(&this, serializable_items_rx, cx).await
 1486        });
 1487
 1488        let subscriptions = vec![
 1489            cx.observe_window_activation(window, Self::on_window_activation_changed),
 1490            cx.observe_window_bounds(window, move |this, window, cx| {
 1491                if this.bounds_save_task_queued.is_some() {
 1492                    return;
 1493                }
 1494                this.bounds_save_task_queued = Some(cx.spawn_in(window, async move |this, cx| {
 1495                    cx.background_executor()
 1496                        .timer(Duration::from_millis(100))
 1497                        .await;
 1498                    this.update_in(cx, |this, window, cx| {
 1499                        if let Some(display) = window.display(cx)
 1500                            && let Ok(display_uuid) = display.uuid()
 1501                        {
 1502                            let window_bounds = window.inner_window_bounds();
 1503                            let has_paths = !this.root_paths(cx).is_empty();
 1504                            if !has_paths {
 1505                                cx.background_executor()
 1506                                    .spawn(persistence::write_default_window_bounds(
 1507                                        window_bounds,
 1508                                        display_uuid,
 1509                                    ))
 1510                                    .detach_and_log_err(cx);
 1511                            }
 1512                            if let Some(database_id) = workspace_id {
 1513                                cx.background_executor()
 1514                                    .spawn(DB.set_window_open_status(
 1515                                        database_id,
 1516                                        SerializedWindowBounds(window_bounds),
 1517                                        display_uuid,
 1518                                    ))
 1519                                    .detach_and_log_err(cx);
 1520                            } else {
 1521                                cx.background_executor()
 1522                                    .spawn(persistence::write_default_window_bounds(
 1523                                        window_bounds,
 1524                                        display_uuid,
 1525                                    ))
 1526                                    .detach_and_log_err(cx);
 1527                            }
 1528                        }
 1529                        this.bounds_save_task_queued.take();
 1530                    })
 1531                    .ok();
 1532                }));
 1533                cx.notify();
 1534            }),
 1535            cx.observe_window_appearance(window, |_, window, cx| {
 1536                let window_appearance = window.appearance();
 1537
 1538                *SystemAppearance::global_mut(cx) = SystemAppearance(window_appearance.into());
 1539
 1540                GlobalTheme::reload_theme(cx);
 1541                GlobalTheme::reload_icon_theme(cx);
 1542            }),
 1543            cx.on_release(move |this, cx| {
 1544                this.app_state.workspace_store.update(cx, move |store, _| {
 1545                    store.workspaces.remove(&window_handle);
 1546                })
 1547            }),
 1548        ];
 1549
 1550        cx.defer_in(window, move |this, window, cx| {
 1551            this.update_window_title(window, cx);
 1552            this.show_initial_notifications(cx);
 1553        });
 1554
 1555        let mut center = PaneGroup::new(center_pane.clone());
 1556        center.set_is_center(true);
 1557        center.mark_positions(cx);
 1558
 1559        Workspace {
 1560            weak_self: weak_handle.clone(),
 1561            zoomed: None,
 1562            zoomed_position: None,
 1563            previous_dock_drag_coordinates: None,
 1564            center,
 1565            panes: vec![center_pane.clone()],
 1566            panes_by_item: Default::default(),
 1567            active_pane: center_pane.clone(),
 1568            last_active_center_pane: Some(center_pane.downgrade()),
 1569            last_active_view_id: None,
 1570            status_bar,
 1571            modal_layer,
 1572            toast_layer,
 1573            titlebar_item: None,
 1574            notifications: Notifications::default(),
 1575            suppressed_notifications: HashSet::default(),
 1576            left_dock,
 1577            bottom_dock,
 1578            right_dock,
 1579            project: project.clone(),
 1580            follower_states: Default::default(),
 1581            last_leaders_by_pane: Default::default(),
 1582            dispatching_keystrokes: Default::default(),
 1583            window_edited: false,
 1584            last_window_title: None,
 1585            dirty_items: Default::default(),
 1586            active_call,
 1587            database_id: workspace_id,
 1588            app_state,
 1589            _observe_current_user,
 1590            _apply_leader_updates,
 1591            _schedule_serialize_workspace: None,
 1592            _schedule_serialize_ssh_paths: None,
 1593            leader_updates_tx,
 1594            _subscriptions: subscriptions,
 1595            pane_history_timestamp,
 1596            workspace_actions: Default::default(),
 1597            // This data will be incorrect, but it will be overwritten by the time it needs to be used.
 1598            bounds: Default::default(),
 1599            centered_layout: false,
 1600            bounds_save_task_queued: None,
 1601            on_prompt_for_new_path: None,
 1602            on_prompt_for_open_path: None,
 1603            terminal_provider: None,
 1604            debugger_provider: None,
 1605            serializable_items_tx,
 1606            _items_serializer,
 1607            session_id: Some(session_id),
 1608
 1609            scheduled_tasks: Vec::new(),
 1610            last_open_dock_positions: Vec::new(),
 1611            removing: false,
 1612            utility_panes: UtilityPaneState::default(),
 1613        }
 1614    }
 1615
 1616    pub fn new_local(
 1617        abs_paths: Vec<PathBuf>,
 1618        app_state: Arc<AppState>,
 1619        requesting_window: Option<WindowHandle<Workspace>>,
 1620        env: Option<HashMap<String, String>>,
 1621        init: Option<Box<dyn FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send>>,
 1622        cx: &mut App,
 1623    ) -> Task<
 1624        anyhow::Result<(
 1625            WindowHandle<Workspace>,
 1626            Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 1627        )>,
 1628    > {
 1629        let project_handle = Project::local(
 1630            app_state.client.clone(),
 1631            app_state.node_runtime.clone(),
 1632            app_state.user_store.clone(),
 1633            app_state.languages.clone(),
 1634            app_state.fs.clone(),
 1635            env,
 1636            true,
 1637            cx,
 1638        );
 1639
 1640        cx.spawn(async move |cx| {
 1641            let mut paths_to_open = Vec::with_capacity(abs_paths.len());
 1642            for path in abs_paths.into_iter() {
 1643                if let Some(canonical) = app_state.fs.canonicalize(&path).await.ok() {
 1644                    paths_to_open.push(canonical)
 1645                } else {
 1646                    paths_to_open.push(path)
 1647                }
 1648            }
 1649
 1650            let serialized_workspace =
 1651                persistence::DB.workspace_for_roots(paths_to_open.as_slice());
 1652
 1653            if let Some(paths) = serialized_workspace.as_ref().map(|ws| &ws.paths) {
 1654                paths_to_open = paths.ordered_paths().cloned().collect();
 1655                if !paths.is_lexicographically_ordered() {
 1656                    project_handle
 1657                        .update(cx, |project, cx| {
 1658                            project.set_worktrees_reordered(true, cx);
 1659                        })
 1660                        .log_err();
 1661                }
 1662            }
 1663
 1664            // Get project paths for all of the abs_paths
 1665            let mut project_paths: Vec<(PathBuf, Option<ProjectPath>)> =
 1666                Vec::with_capacity(paths_to_open.len());
 1667
 1668            for path in paths_to_open.into_iter() {
 1669                if let Some((_, project_entry)) = cx
 1670                    .update(|cx| {
 1671                        Workspace::project_path_for_path(project_handle.clone(), &path, true, cx)
 1672                    })?
 1673                    .await
 1674                    .log_err()
 1675                {
 1676                    project_paths.push((path, Some(project_entry)));
 1677                } else {
 1678                    project_paths.push((path, None));
 1679                }
 1680            }
 1681
 1682            let workspace_id = if let Some(serialized_workspace) = serialized_workspace.as_ref() {
 1683                serialized_workspace.id
 1684            } else {
 1685                DB.next_id().await.unwrap_or_else(|_| Default::default())
 1686            };
 1687
 1688            let toolchains = DB.toolchains(workspace_id).await?;
 1689
 1690            for (toolchain, worktree_path, path) in toolchains {
 1691                let toolchain_path = PathBuf::from(toolchain.path.clone().to_string());
 1692                let Some(worktree_id) = project_handle.read_with(cx, |this, cx| {
 1693                    this.find_worktree(&worktree_path, cx)
 1694                        .and_then(|(worktree, rel_path)| {
 1695                            if rel_path.is_empty() {
 1696                                Some(worktree.read(cx).id())
 1697                            } else {
 1698                                None
 1699                            }
 1700                        })
 1701                })?
 1702                else {
 1703                    // We did not find a worktree with a given path, but that's whatever.
 1704                    continue;
 1705                };
 1706                if !app_state.fs.is_file(toolchain_path.as_path()).await {
 1707                    continue;
 1708                }
 1709
 1710                project_handle
 1711                    .update(cx, |this, cx| {
 1712                        this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 1713                    })?
 1714                    .await;
 1715            }
 1716            if let Some(workspace) = serialized_workspace.as_ref() {
 1717                project_handle.update(cx, |this, cx| {
 1718                    for (scope, toolchains) in &workspace.user_toolchains {
 1719                        for toolchain in toolchains {
 1720                            this.add_toolchain(toolchain.clone(), scope.clone(), cx);
 1721                        }
 1722                    }
 1723                })?;
 1724            }
 1725
 1726            let window = if let Some(window) = requesting_window {
 1727                let centered_layout = serialized_workspace
 1728                    .as_ref()
 1729                    .map(|w| w.centered_layout)
 1730                    .unwrap_or(false);
 1731
 1732                cx.update_window(window.into(), |_, window, cx| {
 1733                    window.replace_root(cx, |window, cx| {
 1734                        let mut workspace = Workspace::new(
 1735                            Some(workspace_id),
 1736                            project_handle.clone(),
 1737                            app_state.clone(),
 1738                            window,
 1739                            cx,
 1740                        );
 1741
 1742                        workspace.centered_layout = centered_layout;
 1743
 1744                        // Call init callback to add items before window renders
 1745                        if let Some(init) = init {
 1746                            init(&mut workspace, window, cx);
 1747                        }
 1748
 1749                        workspace
 1750                    });
 1751                })?;
 1752                window
 1753            } else {
 1754                let window_bounds_override = window_bounds_env_override();
 1755
 1756                let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 1757                    (Some(WindowBounds::Windowed(bounds)), None)
 1758                } else if let Some(workspace) = serialized_workspace.as_ref()
 1759                    && let Some(display) = workspace.display
 1760                    && let Some(bounds) = workspace.window_bounds.as_ref()
 1761                {
 1762                    // Reopening an existing workspace - restore its saved bounds
 1763                    (Some(bounds.0), Some(display))
 1764                } else if let Some((display, bounds)) = persistence::read_default_window_bounds() {
 1765                    // New or empty workspace - use the last known window bounds
 1766                    (Some(bounds), Some(display))
 1767                } else {
 1768                    // New window - let GPUI's default_bounds() handle cascading
 1769                    (None, None)
 1770                };
 1771
 1772                // Use the serialized workspace to construct the new window
 1773                let mut options = cx.update(|cx| (app_state.build_window_options)(display, cx))?;
 1774                options.window_bounds = window_bounds;
 1775                let centered_layout = serialized_workspace
 1776                    .as_ref()
 1777                    .map(|w| w.centered_layout)
 1778                    .unwrap_or(false);
 1779                cx.open_window(options, {
 1780                    let app_state = app_state.clone();
 1781                    let project_handle = project_handle.clone();
 1782                    move |window, cx| {
 1783                        cx.new(|cx| {
 1784                            let mut workspace = Workspace::new(
 1785                                Some(workspace_id),
 1786                                project_handle,
 1787                                app_state,
 1788                                window,
 1789                                cx,
 1790                            );
 1791                            workspace.centered_layout = centered_layout;
 1792
 1793                            // Call init callback to add items before window renders
 1794                            if let Some(init) = init {
 1795                                init(&mut workspace, window, cx);
 1796                            }
 1797
 1798                            workspace
 1799                        })
 1800                    }
 1801                })?
 1802            };
 1803
 1804            notify_if_database_failed(window, cx);
 1805            let opened_items = window
 1806                .update(cx, |_workspace, window, cx| {
 1807                    open_items(serialized_workspace, project_paths, window, cx)
 1808                })?
 1809                .await
 1810                .unwrap_or_default();
 1811
 1812            window
 1813                .update(cx, |workspace, window, cx| {
 1814                    window.activate_window();
 1815                    workspace.update_history(cx);
 1816                })
 1817                .log_err();
 1818            Ok((window, opened_items))
 1819        })
 1820    }
 1821
 1822    pub fn weak_handle(&self) -> WeakEntity<Self> {
 1823        self.weak_self.clone()
 1824    }
 1825
 1826    pub fn left_dock(&self) -> &Entity<Dock> {
 1827        &self.left_dock
 1828    }
 1829
 1830    pub fn bottom_dock(&self) -> &Entity<Dock> {
 1831        &self.bottom_dock
 1832    }
 1833
 1834    pub fn set_bottom_dock_layout(
 1835        &mut self,
 1836        layout: BottomDockLayout,
 1837        window: &mut Window,
 1838        cx: &mut Context<Self>,
 1839    ) {
 1840        let fs = self.project().read(cx).fs();
 1841        settings::update_settings_file(fs.clone(), cx, move |content, _cx| {
 1842            content.workspace.bottom_dock_layout = Some(layout);
 1843        });
 1844
 1845        cx.notify();
 1846        self.serialize_workspace(window, cx);
 1847    }
 1848
 1849    pub fn right_dock(&self) -> &Entity<Dock> {
 1850        &self.right_dock
 1851    }
 1852
 1853    pub fn all_docks(&self) -> [&Entity<Dock>; 3] {
 1854        [&self.left_dock, &self.bottom_dock, &self.right_dock]
 1855    }
 1856
 1857    pub fn dock_at_position(&self, position: DockPosition) -> &Entity<Dock> {
 1858        match position {
 1859            DockPosition::Left => &self.left_dock,
 1860            DockPosition::Bottom => &self.bottom_dock,
 1861            DockPosition::Right => &self.right_dock,
 1862        }
 1863    }
 1864
 1865    pub fn is_edited(&self) -> bool {
 1866        self.window_edited
 1867    }
 1868
 1869    pub fn add_panel<T: Panel>(
 1870        &mut self,
 1871        panel: Entity<T>,
 1872        window: &mut Window,
 1873        cx: &mut Context<Self>,
 1874    ) {
 1875        let focus_handle = panel.panel_focus_handle(cx);
 1876        cx.on_focus_in(&focus_handle, window, Self::handle_panel_focused)
 1877            .detach();
 1878
 1879        let dock_position = panel.position(window, cx);
 1880        let dock = self.dock_at_position(dock_position);
 1881
 1882        dock.update(cx, |dock, cx| {
 1883            dock.add_panel(panel, self.weak_self.clone(), window, cx)
 1884        });
 1885    }
 1886
 1887    pub fn remove_panel<T: Panel>(
 1888        &mut self,
 1889        panel: &Entity<T>,
 1890        window: &mut Window,
 1891        cx: &mut Context<Self>,
 1892    ) {
 1893        let mut found_in_dock = None;
 1894        for dock in [&self.left_dock, &self.bottom_dock, &self.right_dock] {
 1895            let found = dock.update(cx, |dock, cx| dock.remove_panel(panel, window, cx));
 1896
 1897            if found {
 1898                found_in_dock = Some(dock.clone());
 1899            }
 1900        }
 1901        if let Some(found_in_dock) = found_in_dock {
 1902            let position = found_in_dock.read(cx).position();
 1903            let slot = utility_slot_for_dock_position(position);
 1904            self.clear_utility_pane_if_provider(slot, Entity::entity_id(panel), cx);
 1905        }
 1906    }
 1907
 1908    pub fn status_bar(&self) -> &Entity<StatusBar> {
 1909        &self.status_bar
 1910    }
 1911
 1912    pub fn status_bar_visible(&self, cx: &App) -> bool {
 1913        StatusBarSettings::get_global(cx).show
 1914    }
 1915
 1916    pub fn app_state(&self) -> &Arc<AppState> {
 1917        &self.app_state
 1918    }
 1919
 1920    pub fn user_store(&self) -> &Entity<UserStore> {
 1921        &self.app_state.user_store
 1922    }
 1923
 1924    pub fn project(&self) -> &Entity<Project> {
 1925        &self.project
 1926    }
 1927
 1928    pub fn path_style(&self, cx: &App) -> PathStyle {
 1929        self.project.read(cx).path_style(cx)
 1930    }
 1931
 1932    pub fn recently_activated_items(&self, cx: &App) -> HashMap<EntityId, usize> {
 1933        let mut history: HashMap<EntityId, usize> = HashMap::default();
 1934
 1935        for pane_handle in &self.panes {
 1936            let pane = pane_handle.read(cx);
 1937
 1938            for entry in pane.activation_history() {
 1939                history.insert(
 1940                    entry.entity_id,
 1941                    history
 1942                        .get(&entry.entity_id)
 1943                        .cloned()
 1944                        .unwrap_or(0)
 1945                        .max(entry.timestamp),
 1946                );
 1947            }
 1948        }
 1949
 1950        history
 1951    }
 1952
 1953    pub fn recent_active_item_by_type<T: 'static>(&self, cx: &App) -> Option<Entity<T>> {
 1954        let mut recent_item: Option<Entity<T>> = None;
 1955        let mut recent_timestamp = 0;
 1956        for pane_handle in &self.panes {
 1957            let pane = pane_handle.read(cx);
 1958            let item_map: HashMap<EntityId, &Box<dyn ItemHandle>> =
 1959                pane.items().map(|item| (item.item_id(), item)).collect();
 1960            for entry in pane.activation_history() {
 1961                if entry.timestamp > recent_timestamp
 1962                    && let Some(&item) = item_map.get(&entry.entity_id)
 1963                    && let Some(typed_item) = item.act_as::<T>(cx)
 1964                {
 1965                    recent_timestamp = entry.timestamp;
 1966                    recent_item = Some(typed_item);
 1967                }
 1968            }
 1969        }
 1970        recent_item
 1971    }
 1972
 1973    pub fn recent_navigation_history_iter(
 1974        &self,
 1975        cx: &App,
 1976    ) -> impl Iterator<Item = (ProjectPath, Option<PathBuf>)> + use<> {
 1977        let mut abs_paths_opened: HashMap<PathBuf, HashSet<ProjectPath>> = HashMap::default();
 1978        let mut history: HashMap<ProjectPath, (Option<PathBuf>, usize)> = HashMap::default();
 1979
 1980        for pane in &self.panes {
 1981            let pane = pane.read(cx);
 1982
 1983            pane.nav_history()
 1984                .for_each_entry(cx, |entry, (project_path, fs_path)| {
 1985                    if let Some(fs_path) = &fs_path {
 1986                        abs_paths_opened
 1987                            .entry(fs_path.clone())
 1988                            .or_default()
 1989                            .insert(project_path.clone());
 1990                    }
 1991                    let timestamp = entry.timestamp;
 1992                    match history.entry(project_path) {
 1993                        hash_map::Entry::Occupied(mut entry) => {
 1994                            let (_, old_timestamp) = entry.get();
 1995                            if &timestamp > old_timestamp {
 1996                                entry.insert((fs_path, timestamp));
 1997                            }
 1998                        }
 1999                        hash_map::Entry::Vacant(entry) => {
 2000                            entry.insert((fs_path, timestamp));
 2001                        }
 2002                    }
 2003                });
 2004
 2005            if let Some(item) = pane.active_item()
 2006                && let Some(project_path) = item.project_path(cx)
 2007            {
 2008                let fs_path = self.project.read(cx).absolute_path(&project_path, cx);
 2009
 2010                if let Some(fs_path) = &fs_path {
 2011                    abs_paths_opened
 2012                        .entry(fs_path.clone())
 2013                        .or_default()
 2014                        .insert(project_path.clone());
 2015                }
 2016
 2017                history.insert(project_path, (fs_path, std::usize::MAX));
 2018            }
 2019        }
 2020
 2021        history
 2022            .into_iter()
 2023            .sorted_by_key(|(_, (_, order))| *order)
 2024            .map(|(project_path, (fs_path, _))| (project_path, fs_path))
 2025            .rev()
 2026            .filter(move |(history_path, abs_path)| {
 2027                let latest_project_path_opened = abs_path
 2028                    .as_ref()
 2029                    .and_then(|abs_path| abs_paths_opened.get(abs_path))
 2030                    .and_then(|project_paths| {
 2031                        project_paths
 2032                            .iter()
 2033                            .max_by(|b1, b2| b1.worktree_id.cmp(&b2.worktree_id))
 2034                    });
 2035
 2036                latest_project_path_opened.is_none_or(|path| path == history_path)
 2037            })
 2038    }
 2039
 2040    pub fn recent_navigation_history(
 2041        &self,
 2042        limit: Option<usize>,
 2043        cx: &App,
 2044    ) -> Vec<(ProjectPath, Option<PathBuf>)> {
 2045        self.recent_navigation_history_iter(cx)
 2046            .take(limit.unwrap_or(usize::MAX))
 2047            .collect()
 2048    }
 2049
 2050    pub fn clear_navigation_history(&mut self, _window: &mut Window, cx: &mut Context<Workspace>) {
 2051        for pane in &self.panes {
 2052            pane.update(cx, |pane, cx| pane.nav_history_mut().clear(cx));
 2053        }
 2054    }
 2055
 2056    fn navigate_history(
 2057        &mut self,
 2058        pane: WeakEntity<Pane>,
 2059        mode: NavigationMode,
 2060        window: &mut Window,
 2061        cx: &mut Context<Workspace>,
 2062    ) -> Task<Result<()>> {
 2063        let to_load = if let Some(pane) = pane.upgrade() {
 2064            pane.update(cx, |pane, cx| {
 2065                window.focus(&pane.focus_handle(cx), cx);
 2066                loop {
 2067                    // Retrieve the weak item handle from the history.
 2068                    let entry = pane.nav_history_mut().pop(mode, cx)?;
 2069
 2070                    // If the item is still present in this pane, then activate it.
 2071                    if let Some(index) = entry
 2072                        .item
 2073                        .upgrade()
 2074                        .and_then(|v| pane.index_for_item(v.as_ref()))
 2075                    {
 2076                        let prev_active_item_index = pane.active_item_index();
 2077                        pane.nav_history_mut().set_mode(mode);
 2078                        pane.activate_item(index, true, true, window, cx);
 2079                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2080
 2081                        let mut navigated = prev_active_item_index != pane.active_item_index();
 2082                        if let Some(data) = entry.data {
 2083                            navigated |= pane.active_item()?.navigate(data, window, cx);
 2084                        }
 2085
 2086                        if navigated {
 2087                            break None;
 2088                        }
 2089                    } else {
 2090                        // If the item is no longer present in this pane, then retrieve its
 2091                        // path info in order to reopen it.
 2092                        break pane
 2093                            .nav_history()
 2094                            .path_for_item(entry.item.id())
 2095                            .map(|(project_path, abs_path)| (project_path, abs_path, entry));
 2096                    }
 2097                }
 2098            })
 2099        } else {
 2100            None
 2101        };
 2102
 2103        if let Some((project_path, abs_path, entry)) = to_load {
 2104            // If the item was no longer present, then load it again from its previous path, first try the local path
 2105            let open_by_project_path = self.load_path(project_path.clone(), window, cx);
 2106
 2107            cx.spawn_in(window, async move  |workspace, cx| {
 2108                let open_by_project_path = open_by_project_path.await;
 2109                let mut navigated = false;
 2110                match open_by_project_path
 2111                    .with_context(|| format!("Navigating to {project_path:?}"))
 2112                {
 2113                    Ok((project_entry_id, build_item)) => {
 2114                        let prev_active_item_id = pane.update(cx, |pane, _| {
 2115                            pane.nav_history_mut().set_mode(mode);
 2116                            pane.active_item().map(|p| p.item_id())
 2117                        })?;
 2118
 2119                        pane.update_in(cx, |pane, window, cx| {
 2120                            let item = pane.open_item(
 2121                                project_entry_id,
 2122                                project_path,
 2123                                true,
 2124                                entry.is_preview,
 2125                                true,
 2126                                None,
 2127                                window, cx,
 2128                                build_item,
 2129                            );
 2130                            navigated |= Some(item.item_id()) != prev_active_item_id;
 2131                            pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2132                            if let Some(data) = entry.data {
 2133                                navigated |= item.navigate(data, window, cx);
 2134                            }
 2135                        })?;
 2136                    }
 2137                    Err(open_by_project_path_e) => {
 2138                        // Fall back to opening by abs path, in case an external file was opened and closed,
 2139                        // and its worktree is now dropped
 2140                        if let Some(abs_path) = abs_path {
 2141                            let prev_active_item_id = pane.update(cx, |pane, _| {
 2142                                pane.nav_history_mut().set_mode(mode);
 2143                                pane.active_item().map(|p| p.item_id())
 2144                            })?;
 2145                            let open_by_abs_path = workspace.update_in(cx, |workspace, window, cx| {
 2146                                workspace.open_abs_path(abs_path.clone(), OpenOptions { visible: Some(OpenVisible::None), ..Default::default() }, window, cx)
 2147                            })?;
 2148                            match open_by_abs_path
 2149                                .await
 2150                                .with_context(|| format!("Navigating to {abs_path:?}"))
 2151                            {
 2152                                Ok(item) => {
 2153                                    pane.update_in(cx, |pane, window, cx| {
 2154                                        navigated |= Some(item.item_id()) != prev_active_item_id;
 2155                                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2156                                        if let Some(data) = entry.data {
 2157                                            navigated |= item.navigate(data, window, cx);
 2158                                        }
 2159                                    })?;
 2160                                }
 2161                                Err(open_by_abs_path_e) => {
 2162                                    log::error!("Failed to navigate history: {open_by_project_path_e:#} and {open_by_abs_path_e:#}");
 2163                                }
 2164                            }
 2165                        }
 2166                    }
 2167                }
 2168
 2169                if !navigated {
 2170                    workspace
 2171                        .update_in(cx, |workspace, window, cx| {
 2172                            Self::navigate_history(workspace, pane, mode, window, cx)
 2173                        })?
 2174                        .await?;
 2175                }
 2176
 2177                Ok(())
 2178            })
 2179        } else {
 2180            Task::ready(Ok(()))
 2181        }
 2182    }
 2183
 2184    pub fn go_back(
 2185        &mut self,
 2186        pane: WeakEntity<Pane>,
 2187        window: &mut Window,
 2188        cx: &mut Context<Workspace>,
 2189    ) -> Task<Result<()>> {
 2190        self.navigate_history(pane, NavigationMode::GoingBack, window, cx)
 2191    }
 2192
 2193    pub fn go_forward(
 2194        &mut self,
 2195        pane: WeakEntity<Pane>,
 2196        window: &mut Window,
 2197        cx: &mut Context<Workspace>,
 2198    ) -> Task<Result<()>> {
 2199        self.navigate_history(pane, NavigationMode::GoingForward, window, cx)
 2200    }
 2201
 2202    pub fn reopen_closed_item(
 2203        &mut self,
 2204        window: &mut Window,
 2205        cx: &mut Context<Workspace>,
 2206    ) -> Task<Result<()>> {
 2207        self.navigate_history(
 2208            self.active_pane().downgrade(),
 2209            NavigationMode::ReopeningClosedItem,
 2210            window,
 2211            cx,
 2212        )
 2213    }
 2214
 2215    pub fn client(&self) -> &Arc<Client> {
 2216        &self.app_state.client
 2217    }
 2218
 2219    pub fn set_titlebar_item(&mut self, item: AnyView, _: &mut Window, cx: &mut Context<Self>) {
 2220        self.titlebar_item = Some(item);
 2221        cx.notify();
 2222    }
 2223
 2224    pub fn set_prompt_for_new_path(&mut self, prompt: PromptForNewPath) {
 2225        self.on_prompt_for_new_path = Some(prompt)
 2226    }
 2227
 2228    pub fn set_prompt_for_open_path(&mut self, prompt: PromptForOpenPath) {
 2229        self.on_prompt_for_open_path = Some(prompt)
 2230    }
 2231
 2232    pub fn set_terminal_provider(&mut self, provider: impl TerminalProvider + 'static) {
 2233        self.terminal_provider = Some(Box::new(provider));
 2234    }
 2235
 2236    pub fn set_debugger_provider(&mut self, provider: impl DebuggerProvider + 'static) {
 2237        self.debugger_provider = Some(Arc::new(provider));
 2238    }
 2239
 2240    pub fn debugger_provider(&self) -> Option<Arc<dyn DebuggerProvider>> {
 2241        self.debugger_provider.clone()
 2242    }
 2243
 2244    pub fn prompt_for_open_path(
 2245        &mut self,
 2246        path_prompt_options: PathPromptOptions,
 2247        lister: DirectoryLister,
 2248        window: &mut Window,
 2249        cx: &mut Context<Self>,
 2250    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2251        if !lister.is_local(cx) || !WorkspaceSettings::get_global(cx).use_system_path_prompts {
 2252            let prompt = self.on_prompt_for_open_path.take().unwrap();
 2253            let rx = prompt(self, lister, window, cx);
 2254            self.on_prompt_for_open_path = Some(prompt);
 2255            rx
 2256        } else {
 2257            let (tx, rx) = oneshot::channel();
 2258            let abs_path = cx.prompt_for_paths(path_prompt_options);
 2259
 2260            cx.spawn_in(window, async move |workspace, cx| {
 2261                let Ok(result) = abs_path.await else {
 2262                    return Ok(());
 2263                };
 2264
 2265                match result {
 2266                    Ok(result) => {
 2267                        tx.send(result).ok();
 2268                    }
 2269                    Err(err) => {
 2270                        let rx = workspace.update_in(cx, |workspace, window, cx| {
 2271                            workspace.show_portal_error(err.to_string(), cx);
 2272                            let prompt = workspace.on_prompt_for_open_path.take().unwrap();
 2273                            let rx = prompt(workspace, lister, window, cx);
 2274                            workspace.on_prompt_for_open_path = Some(prompt);
 2275                            rx
 2276                        })?;
 2277                        if let Ok(path) = rx.await {
 2278                            tx.send(path).ok();
 2279                        }
 2280                    }
 2281                };
 2282                anyhow::Ok(())
 2283            })
 2284            .detach();
 2285
 2286            rx
 2287        }
 2288    }
 2289
 2290    pub fn prompt_for_new_path(
 2291        &mut self,
 2292        lister: DirectoryLister,
 2293        suggested_name: Option<String>,
 2294        window: &mut Window,
 2295        cx: &mut Context<Self>,
 2296    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2297        if self.project.read(cx).is_via_collab()
 2298            || self.project.read(cx).is_via_remote_server()
 2299            || !WorkspaceSettings::get_global(cx).use_system_path_prompts
 2300        {
 2301            let prompt = self.on_prompt_for_new_path.take().unwrap();
 2302            let rx = prompt(self, lister, window, cx);
 2303            self.on_prompt_for_new_path = Some(prompt);
 2304            return rx;
 2305        }
 2306
 2307        let (tx, rx) = oneshot::channel();
 2308        cx.spawn_in(window, async move |workspace, cx| {
 2309            let abs_path = workspace.update(cx, |workspace, cx| {
 2310                let relative_to = workspace
 2311                    .most_recent_active_path(cx)
 2312                    .and_then(|p| p.parent().map(|p| p.to_path_buf()))
 2313                    .or_else(|| {
 2314                        let project = workspace.project.read(cx);
 2315                        project.visible_worktrees(cx).find_map(|worktree| {
 2316                            Some(worktree.read(cx).as_local()?.abs_path().to_path_buf())
 2317                        })
 2318                    })
 2319                    .or_else(std::env::home_dir)
 2320                    .unwrap_or_else(|| PathBuf::from(""));
 2321                cx.prompt_for_new_path(&relative_to, suggested_name.as_deref())
 2322            })?;
 2323            let abs_path = match abs_path.await? {
 2324                Ok(path) => path,
 2325                Err(err) => {
 2326                    let rx = workspace.update_in(cx, |workspace, window, cx| {
 2327                        workspace.show_portal_error(err.to_string(), cx);
 2328
 2329                        let prompt = workspace.on_prompt_for_new_path.take().unwrap();
 2330                        let rx = prompt(workspace, lister, window, cx);
 2331                        workspace.on_prompt_for_new_path = Some(prompt);
 2332                        rx
 2333                    })?;
 2334                    if let Ok(path) = rx.await {
 2335                        tx.send(path).ok();
 2336                    }
 2337                    return anyhow::Ok(());
 2338                }
 2339            };
 2340
 2341            tx.send(abs_path.map(|path| vec![path])).ok();
 2342            anyhow::Ok(())
 2343        })
 2344        .detach();
 2345
 2346        rx
 2347    }
 2348
 2349    pub fn titlebar_item(&self) -> Option<AnyView> {
 2350        self.titlebar_item.clone()
 2351    }
 2352
 2353    /// Call the given callback with a workspace whose project is local.
 2354    ///
 2355    /// If the given workspace has a local project, then it will be passed
 2356    /// to the callback. Otherwise, a new empty window will be created.
 2357    pub fn with_local_workspace<T, F>(
 2358        &mut self,
 2359        window: &mut Window,
 2360        cx: &mut Context<Self>,
 2361        callback: F,
 2362    ) -> Task<Result<T>>
 2363    where
 2364        T: 'static,
 2365        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2366    {
 2367        if self.project.read(cx).is_local() {
 2368            Task::ready(Ok(callback(self, window, cx)))
 2369        } else {
 2370            let env = self.project.read(cx).cli_environment(cx);
 2371            let task = Self::new_local(Vec::new(), self.app_state.clone(), None, env, None, cx);
 2372            cx.spawn_in(window, async move |_vh, cx| {
 2373                let (workspace, _) = task.await?;
 2374                workspace.update(cx, callback)
 2375            })
 2376        }
 2377    }
 2378
 2379    pub fn worktrees<'a>(&self, cx: &'a App) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2380        self.project.read(cx).worktrees(cx)
 2381    }
 2382
 2383    pub fn visible_worktrees<'a>(
 2384        &self,
 2385        cx: &'a App,
 2386    ) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2387        self.project.read(cx).visible_worktrees(cx)
 2388    }
 2389
 2390    #[cfg(any(test, feature = "test-support"))]
 2391    pub fn worktree_scans_complete(&self, cx: &App) -> impl Future<Output = ()> + 'static + use<> {
 2392        let futures = self
 2393            .worktrees(cx)
 2394            .filter_map(|worktree| worktree.read(cx).as_local())
 2395            .map(|worktree| worktree.scan_complete())
 2396            .collect::<Vec<_>>();
 2397        async move {
 2398            for future in futures {
 2399                future.await;
 2400            }
 2401        }
 2402    }
 2403
 2404    pub fn close_global(cx: &mut App) {
 2405        cx.defer(|cx| {
 2406            cx.windows().iter().find(|window| {
 2407                window
 2408                    .update(cx, |_, window, _| {
 2409                        if window.is_window_active() {
 2410                            //This can only get called when the window's project connection has been lost
 2411                            //so we don't need to prompt the user for anything and instead just close the window
 2412                            window.remove_window();
 2413                            true
 2414                        } else {
 2415                            false
 2416                        }
 2417                    })
 2418                    .unwrap_or(false)
 2419            });
 2420        });
 2421    }
 2422
 2423    pub fn close_window(&mut self, _: &CloseWindow, window: &mut Window, cx: &mut Context<Self>) {
 2424        let prepare = self.prepare_to_close(CloseIntent::CloseWindow, window, cx);
 2425        cx.spawn_in(window, async move |_, cx| {
 2426            if prepare.await? {
 2427                cx.update(|window, _cx| window.remove_window())?;
 2428            }
 2429            anyhow::Ok(())
 2430        })
 2431        .detach_and_log_err(cx)
 2432    }
 2433
 2434    pub fn move_focused_panel_to_next_position(
 2435        &mut self,
 2436        _: &MoveFocusedPanelToNextPosition,
 2437        window: &mut Window,
 2438        cx: &mut Context<Self>,
 2439    ) {
 2440        let docks = self.all_docks();
 2441        let active_dock = docks
 2442            .into_iter()
 2443            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 2444
 2445        if let Some(dock) = active_dock {
 2446            dock.update(cx, |dock, cx| {
 2447                let active_panel = dock
 2448                    .active_panel()
 2449                    .filter(|panel| panel.panel_focus_handle(cx).contains_focused(window, cx));
 2450
 2451                if let Some(panel) = active_panel {
 2452                    panel.move_to_next_position(window, cx);
 2453                }
 2454            })
 2455        }
 2456    }
 2457
 2458    pub fn prepare_to_close(
 2459        &mut self,
 2460        close_intent: CloseIntent,
 2461        window: &mut Window,
 2462        cx: &mut Context<Self>,
 2463    ) -> Task<Result<bool>> {
 2464        let active_call = self.active_call().cloned();
 2465
 2466        cx.spawn_in(window, async move |this, cx| {
 2467            this.update(cx, |this, _| {
 2468                if close_intent == CloseIntent::CloseWindow {
 2469                    this.removing = true;
 2470                }
 2471            })?;
 2472
 2473            let workspace_count = cx.update(|_window, cx| {
 2474                cx.windows()
 2475                    .iter()
 2476                    .filter(|window| window.downcast::<Workspace>().is_some())
 2477                    .count()
 2478            })?;
 2479
 2480            #[cfg(target_os = "macos")]
 2481            let save_last_workspace = false;
 2482
 2483            // On Linux and Windows, closing the last window should restore the last workspace.
 2484            #[cfg(not(target_os = "macos"))]
 2485            let save_last_workspace = {
 2486                let remaining_workspaces = cx.update(|_window, cx| {
 2487                    cx.windows()
 2488                        .iter()
 2489                        .filter_map(|window| window.downcast::<Workspace>())
 2490                        .filter_map(|workspace| {
 2491                            workspace
 2492                                .update(cx, |workspace, _, _| workspace.removing)
 2493                                .ok()
 2494                        })
 2495                        .filter(|removing| !removing)
 2496                        .count()
 2497                })?;
 2498
 2499                close_intent != CloseIntent::ReplaceWindow && remaining_workspaces == 0
 2500            };
 2501
 2502            if let Some(active_call) = active_call
 2503                && workspace_count == 1
 2504                && active_call.read_with(cx, |call, _| call.room().is_some())?
 2505            {
 2506                if close_intent == CloseIntent::CloseWindow {
 2507                    let answer = cx.update(|window, cx| {
 2508                        window.prompt(
 2509                            PromptLevel::Warning,
 2510                            "Do you want to leave the current call?",
 2511                            None,
 2512                            &["Close window and hang up", "Cancel"],
 2513                            cx,
 2514                        )
 2515                    })?;
 2516
 2517                    if answer.await.log_err() == Some(1) {
 2518                        return anyhow::Ok(false);
 2519                    } else {
 2520                        active_call
 2521                            .update(cx, |call, cx| call.hang_up(cx))?
 2522                            .await
 2523                            .log_err();
 2524                    }
 2525                }
 2526                if close_intent == CloseIntent::ReplaceWindow {
 2527                    _ = active_call.update(cx, |this, cx| {
 2528                        let workspace = cx
 2529                            .windows()
 2530                            .iter()
 2531                            .filter_map(|window| window.downcast::<Workspace>())
 2532                            .next()
 2533                            .unwrap();
 2534                        let project = workspace.read(cx)?.project.clone();
 2535                        if project.read(cx).is_shared() {
 2536                            this.unshare_project(project, cx)?;
 2537                        }
 2538                        Ok::<_, anyhow::Error>(())
 2539                    })?;
 2540                }
 2541            }
 2542
 2543            let save_result = this
 2544                .update_in(cx, |this, window, cx| {
 2545                    this.save_all_internal(SaveIntent::Close, window, cx)
 2546                })?
 2547                .await;
 2548
 2549            // If we're not quitting, but closing, we remove the workspace from
 2550            // the current session.
 2551            if close_intent != CloseIntent::Quit
 2552                && !save_last_workspace
 2553                && save_result.as_ref().is_ok_and(|&res| res)
 2554            {
 2555                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))?
 2556                    .await;
 2557            }
 2558
 2559            save_result
 2560        })
 2561    }
 2562
 2563    fn save_all(&mut self, action: &SaveAll, window: &mut Window, cx: &mut Context<Self>) {
 2564        self.save_all_internal(
 2565            action.save_intent.unwrap_or(SaveIntent::SaveAll),
 2566            window,
 2567            cx,
 2568        )
 2569        .detach_and_log_err(cx);
 2570    }
 2571
 2572    fn send_keystrokes(
 2573        &mut self,
 2574        action: &SendKeystrokes,
 2575        window: &mut Window,
 2576        cx: &mut Context<Self>,
 2577    ) {
 2578        let keystrokes: Vec<Keystroke> = action
 2579            .0
 2580            .split(' ')
 2581            .flat_map(|k| Keystroke::parse(k).log_err())
 2582            .map(|k| {
 2583                cx.keyboard_mapper()
 2584                    .map_key_equivalent(k, true)
 2585                    .inner()
 2586                    .clone()
 2587            })
 2588            .collect();
 2589        let _ = self.send_keystrokes_impl(keystrokes, window, cx);
 2590    }
 2591
 2592    pub fn send_keystrokes_impl(
 2593        &mut self,
 2594        keystrokes: Vec<Keystroke>,
 2595        window: &mut Window,
 2596        cx: &mut Context<Self>,
 2597    ) -> Shared<Task<()>> {
 2598        let mut state = self.dispatching_keystrokes.borrow_mut();
 2599        if !state.dispatched.insert(keystrokes.clone()) {
 2600            cx.propagate();
 2601            return state.task.clone().unwrap();
 2602        }
 2603
 2604        state.queue.extend(keystrokes);
 2605
 2606        let keystrokes = self.dispatching_keystrokes.clone();
 2607        if state.task.is_none() {
 2608            state.task = Some(
 2609                window
 2610                    .spawn(cx, async move |cx| {
 2611                        // limit to 100 keystrokes to avoid infinite recursion.
 2612                        for _ in 0..100 {
 2613                            let mut state = keystrokes.borrow_mut();
 2614                            let Some(keystroke) = state.queue.pop_front() else {
 2615                                state.dispatched.clear();
 2616                                state.task.take();
 2617                                return;
 2618                            };
 2619                            drop(state);
 2620                            cx.update(|window, cx| {
 2621                                let focused = window.focused(cx);
 2622                                window.dispatch_keystroke(keystroke.clone(), cx);
 2623                                if window.focused(cx) != focused {
 2624                                    // dispatch_keystroke may cause the focus to change.
 2625                                    // draw's side effect is to schedule the FocusChanged events in the current flush effect cycle
 2626                                    // And we need that to happen before the next keystroke to keep vim mode happy...
 2627                                    // (Note that the tests always do this implicitly, so you must manually test with something like:
 2628                                    //   "bindings": { "g z": ["workspace::SendKeystrokes", ": j <enter> u"]}
 2629                                    // )
 2630                                    window.draw(cx).clear();
 2631                                }
 2632                            })
 2633                            .ok();
 2634                        }
 2635
 2636                        *keystrokes.borrow_mut() = Default::default();
 2637                        log::error!("over 100 keystrokes passed to send_keystrokes");
 2638                    })
 2639                    .shared(),
 2640            );
 2641        }
 2642        state.task.clone().unwrap()
 2643    }
 2644
 2645    fn save_all_internal(
 2646        &mut self,
 2647        mut save_intent: SaveIntent,
 2648        window: &mut Window,
 2649        cx: &mut Context<Self>,
 2650    ) -> Task<Result<bool>> {
 2651        if self.project.read(cx).is_disconnected(cx) {
 2652            return Task::ready(Ok(true));
 2653        }
 2654        let dirty_items = self
 2655            .panes
 2656            .iter()
 2657            .flat_map(|pane| {
 2658                pane.read(cx).items().filter_map(|item| {
 2659                    if item.is_dirty(cx) {
 2660                        item.tab_content_text(0, cx);
 2661                        Some((pane.downgrade(), item.boxed_clone()))
 2662                    } else {
 2663                        None
 2664                    }
 2665                })
 2666            })
 2667            .collect::<Vec<_>>();
 2668
 2669        let project = self.project.clone();
 2670        cx.spawn_in(window, async move |workspace, cx| {
 2671            let dirty_items = if save_intent == SaveIntent::Close && !dirty_items.is_empty() {
 2672                let (serialize_tasks, remaining_dirty_items) =
 2673                    workspace.update_in(cx, |workspace, window, cx| {
 2674                        let mut remaining_dirty_items = Vec::new();
 2675                        let mut serialize_tasks = Vec::new();
 2676                        for (pane, item) in dirty_items {
 2677                            if let Some(task) = item
 2678                                .to_serializable_item_handle(cx)
 2679                                .and_then(|handle| handle.serialize(workspace, true, window, cx))
 2680                            {
 2681                                serialize_tasks.push(task);
 2682                            } else {
 2683                                remaining_dirty_items.push((pane, item));
 2684                            }
 2685                        }
 2686                        (serialize_tasks, remaining_dirty_items)
 2687                    })?;
 2688
 2689                futures::future::try_join_all(serialize_tasks).await?;
 2690
 2691                if remaining_dirty_items.len() > 1 {
 2692                    let answer = workspace.update_in(cx, |_, window, cx| {
 2693                        let detail = Pane::file_names_for_prompt(
 2694                            &mut remaining_dirty_items.iter().map(|(_, handle)| handle),
 2695                            cx,
 2696                        );
 2697                        window.prompt(
 2698                            PromptLevel::Warning,
 2699                            "Do you want to save all changes in the following files?",
 2700                            Some(&detail),
 2701                            &["Save all", "Discard all", "Cancel"],
 2702                            cx,
 2703                        )
 2704                    })?;
 2705                    match answer.await.log_err() {
 2706                        Some(0) => save_intent = SaveIntent::SaveAll,
 2707                        Some(1) => save_intent = SaveIntent::Skip,
 2708                        Some(2) => return Ok(false),
 2709                        _ => {}
 2710                    }
 2711                }
 2712
 2713                remaining_dirty_items
 2714            } else {
 2715                dirty_items
 2716            };
 2717
 2718            for (pane, item) in dirty_items {
 2719                let (singleton, project_entry_ids) = cx.update(|_, cx| {
 2720                    (
 2721                        item.buffer_kind(cx) == ItemBufferKind::Singleton,
 2722                        item.project_entry_ids(cx),
 2723                    )
 2724                })?;
 2725                if (singleton || !project_entry_ids.is_empty())
 2726                    && !Pane::save_item(project.clone(), &pane, &*item, save_intent, cx).await?
 2727                {
 2728                    return Ok(false);
 2729                }
 2730            }
 2731            Ok(true)
 2732        })
 2733    }
 2734
 2735    pub fn open_workspace_for_paths(
 2736        &mut self,
 2737        replace_current_window: bool,
 2738        paths: Vec<PathBuf>,
 2739        window: &mut Window,
 2740        cx: &mut Context<Self>,
 2741    ) -> Task<Result<()>> {
 2742        let window_handle = window.window_handle().downcast::<Self>();
 2743        let is_remote = self.project.read(cx).is_via_collab();
 2744        let has_worktree = self.project.read(cx).worktrees(cx).next().is_some();
 2745        let has_dirty_items = self.items(cx).any(|item| item.is_dirty(cx));
 2746
 2747        let window_to_replace = if replace_current_window {
 2748            window_handle
 2749        } else if is_remote || has_worktree || has_dirty_items {
 2750            None
 2751        } else {
 2752            window_handle
 2753        };
 2754        let app_state = self.app_state.clone();
 2755
 2756        cx.spawn(async move |_, cx| {
 2757            cx.update(|cx| {
 2758                open_paths(
 2759                    &paths,
 2760                    app_state,
 2761                    OpenOptions {
 2762                        replace_window: window_to_replace,
 2763                        ..Default::default()
 2764                    },
 2765                    cx,
 2766                )
 2767            })?
 2768            .await?;
 2769            Ok(())
 2770        })
 2771    }
 2772
 2773    #[allow(clippy::type_complexity)]
 2774    pub fn open_paths(
 2775        &mut self,
 2776        mut abs_paths: Vec<PathBuf>,
 2777        options: OpenOptions,
 2778        pane: Option<WeakEntity<Pane>>,
 2779        window: &mut Window,
 2780        cx: &mut Context<Self>,
 2781    ) -> Task<Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>> {
 2782        let fs = self.app_state.fs.clone();
 2783
 2784        // Sort the paths to ensure we add worktrees for parents before their children.
 2785        abs_paths.sort_unstable();
 2786        cx.spawn_in(window, async move |this, cx| {
 2787            let mut tasks = Vec::with_capacity(abs_paths.len());
 2788
 2789            for abs_path in &abs_paths {
 2790                let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 2791                    OpenVisible::All => Some(true),
 2792                    OpenVisible::None => Some(false),
 2793                    OpenVisible::OnlyFiles => match fs.metadata(abs_path).await.log_err() {
 2794                        Some(Some(metadata)) => Some(!metadata.is_dir),
 2795                        Some(None) => Some(true),
 2796                        None => None,
 2797                    },
 2798                    OpenVisible::OnlyDirectories => match fs.metadata(abs_path).await.log_err() {
 2799                        Some(Some(metadata)) => Some(metadata.is_dir),
 2800                        Some(None) => Some(false),
 2801                        None => None,
 2802                    },
 2803                };
 2804                let project_path = match visible {
 2805                    Some(visible) => match this
 2806                        .update(cx, |this, cx| {
 2807                            Workspace::project_path_for_path(
 2808                                this.project.clone(),
 2809                                abs_path,
 2810                                visible,
 2811                                cx,
 2812                            )
 2813                        })
 2814                        .log_err()
 2815                    {
 2816                        Some(project_path) => project_path.await.log_err(),
 2817                        None => None,
 2818                    },
 2819                    None => None,
 2820                };
 2821
 2822                let this = this.clone();
 2823                let abs_path: Arc<Path> = SanitizedPath::new(&abs_path).as_path().into();
 2824                let fs = fs.clone();
 2825                let pane = pane.clone();
 2826                let task = cx.spawn(async move |cx| {
 2827                    let (worktree, project_path) = project_path?;
 2828                    if fs.is_dir(&abs_path).await {
 2829                        this.update(cx, |workspace, cx| {
 2830                            let worktree = worktree.read(cx);
 2831                            let worktree_abs_path = worktree.abs_path();
 2832                            let entry_id = if abs_path.as_ref() == worktree_abs_path.as_ref() {
 2833                                worktree.root_entry()
 2834                            } else {
 2835                                abs_path
 2836                                    .strip_prefix(worktree_abs_path.as_ref())
 2837                                    .ok()
 2838                                    .and_then(|relative_path| {
 2839                                        let relative_path =
 2840                                            RelPath::new(relative_path, PathStyle::local())
 2841                                                .log_err()?;
 2842                                        worktree.entry_for_path(&relative_path)
 2843                                    })
 2844                            }
 2845                            .map(|entry| entry.id);
 2846                            if let Some(entry_id) = entry_id {
 2847                                workspace.project.update(cx, |_, cx| {
 2848                                    cx.emit(project::Event::ActiveEntryChanged(Some(entry_id)));
 2849                                })
 2850                            }
 2851                        })
 2852                        .ok()?;
 2853                        None
 2854                    } else {
 2855                        Some(
 2856                            this.update_in(cx, |this, window, cx| {
 2857                                this.open_path(
 2858                                    project_path,
 2859                                    pane,
 2860                                    options.focus.unwrap_or(true),
 2861                                    window,
 2862                                    cx,
 2863                                )
 2864                            })
 2865                            .ok()?
 2866                            .await,
 2867                        )
 2868                    }
 2869                });
 2870                tasks.push(task);
 2871            }
 2872
 2873            futures::future::join_all(tasks).await
 2874        })
 2875    }
 2876
 2877    pub fn open_resolved_path(
 2878        &mut self,
 2879        path: ResolvedPath,
 2880        window: &mut Window,
 2881        cx: &mut Context<Self>,
 2882    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 2883        match path {
 2884            ResolvedPath::ProjectPath { project_path, .. } => {
 2885                self.open_path(project_path, None, true, window, cx)
 2886            }
 2887            ResolvedPath::AbsPath { path, .. } => self.open_abs_path(
 2888                PathBuf::from(path),
 2889                OpenOptions {
 2890                    visible: Some(OpenVisible::None),
 2891                    ..Default::default()
 2892                },
 2893                window,
 2894                cx,
 2895            ),
 2896        }
 2897    }
 2898
 2899    pub fn absolute_path_of_worktree(
 2900        &self,
 2901        worktree_id: WorktreeId,
 2902        cx: &mut Context<Self>,
 2903    ) -> Option<PathBuf> {
 2904        self.project
 2905            .read(cx)
 2906            .worktree_for_id(worktree_id, cx)
 2907            // TODO: use `abs_path` or `root_dir`
 2908            .map(|wt| wt.read(cx).abs_path().as_ref().to_path_buf())
 2909    }
 2910
 2911    fn add_folder_to_project(
 2912        &mut self,
 2913        _: &AddFolderToProject,
 2914        window: &mut Window,
 2915        cx: &mut Context<Self>,
 2916    ) {
 2917        let project = self.project.read(cx);
 2918        if project.is_via_collab() {
 2919            self.show_error(
 2920                &anyhow!("You cannot add folders to someone else's project"),
 2921                cx,
 2922            );
 2923            return;
 2924        }
 2925        let paths = self.prompt_for_open_path(
 2926            PathPromptOptions {
 2927                files: false,
 2928                directories: true,
 2929                multiple: true,
 2930                prompt: None,
 2931            },
 2932            DirectoryLister::Project(self.project.clone()),
 2933            window,
 2934            cx,
 2935        );
 2936        cx.spawn_in(window, async move |this, cx| {
 2937            if let Some(paths) = paths.await.log_err().flatten() {
 2938                let results = this
 2939                    .update_in(cx, |this, window, cx| {
 2940                        this.open_paths(
 2941                            paths,
 2942                            OpenOptions {
 2943                                visible: Some(OpenVisible::All),
 2944                                ..Default::default()
 2945                            },
 2946                            None,
 2947                            window,
 2948                            cx,
 2949                        )
 2950                    })?
 2951                    .await;
 2952                for result in results.into_iter().flatten() {
 2953                    result.log_err();
 2954                }
 2955            }
 2956            anyhow::Ok(())
 2957        })
 2958        .detach_and_log_err(cx);
 2959    }
 2960
 2961    pub fn project_path_for_path(
 2962        project: Entity<Project>,
 2963        abs_path: &Path,
 2964        visible: bool,
 2965        cx: &mut App,
 2966    ) -> Task<Result<(Entity<Worktree>, ProjectPath)>> {
 2967        let entry = project.update(cx, |project, cx| {
 2968            project.find_or_create_worktree(abs_path, visible, cx)
 2969        });
 2970        cx.spawn(async move |cx| {
 2971            let (worktree, path) = entry.await?;
 2972            let worktree_id = worktree.read_with(cx, |t, _| t.id())?;
 2973            Ok((
 2974                worktree,
 2975                ProjectPath {
 2976                    worktree_id,
 2977                    path: path,
 2978                },
 2979            ))
 2980        })
 2981    }
 2982
 2983    pub fn items<'a>(&'a self, cx: &'a App) -> impl 'a + Iterator<Item = &'a Box<dyn ItemHandle>> {
 2984        self.panes.iter().flat_map(|pane| pane.read(cx).items())
 2985    }
 2986
 2987    pub fn item_of_type<T: Item>(&self, cx: &App) -> Option<Entity<T>> {
 2988        self.items_of_type(cx).max_by_key(|item| item.item_id())
 2989    }
 2990
 2991    pub fn items_of_type<'a, T: Item>(
 2992        &'a self,
 2993        cx: &'a App,
 2994    ) -> impl 'a + Iterator<Item = Entity<T>> {
 2995        self.panes
 2996            .iter()
 2997            .flat_map(|pane| pane.read(cx).items_of_type())
 2998    }
 2999
 3000    pub fn active_item(&self, cx: &App) -> Option<Box<dyn ItemHandle>> {
 3001        self.active_pane().read(cx).active_item()
 3002    }
 3003
 3004    pub fn active_item_as<I: 'static>(&self, cx: &App) -> Option<Entity<I>> {
 3005        let item = self.active_item(cx)?;
 3006        item.to_any_view().downcast::<I>().ok()
 3007    }
 3008
 3009    fn active_project_path(&self, cx: &App) -> Option<ProjectPath> {
 3010        self.active_item(cx).and_then(|item| item.project_path(cx))
 3011    }
 3012
 3013    pub fn most_recent_active_path(&self, cx: &App) -> Option<PathBuf> {
 3014        self.recent_navigation_history_iter(cx)
 3015            .filter_map(|(path, abs_path)| {
 3016                let worktree = self
 3017                    .project
 3018                    .read(cx)
 3019                    .worktree_for_id(path.worktree_id, cx)?;
 3020                if worktree.read(cx).is_visible() {
 3021                    abs_path
 3022                } else {
 3023                    None
 3024                }
 3025            })
 3026            .next()
 3027    }
 3028
 3029    pub fn save_active_item(
 3030        &mut self,
 3031        save_intent: SaveIntent,
 3032        window: &mut Window,
 3033        cx: &mut App,
 3034    ) -> Task<Result<()>> {
 3035        let project = self.project.clone();
 3036        let pane = self.active_pane();
 3037        let item = pane.read(cx).active_item();
 3038        let pane = pane.downgrade();
 3039
 3040        window.spawn(cx, async move |cx| {
 3041            if let Some(item) = item {
 3042                Pane::save_item(project, &pane, item.as_ref(), save_intent, cx)
 3043                    .await
 3044                    .map(|_| ())
 3045            } else {
 3046                Ok(())
 3047            }
 3048        })
 3049    }
 3050
 3051    pub fn close_inactive_items_and_panes(
 3052        &mut self,
 3053        action: &CloseInactiveTabsAndPanes,
 3054        window: &mut Window,
 3055        cx: &mut Context<Self>,
 3056    ) {
 3057        if let Some(task) = self.close_all_internal(
 3058            true,
 3059            action.save_intent.unwrap_or(SaveIntent::Close),
 3060            window,
 3061            cx,
 3062        ) {
 3063            task.detach_and_log_err(cx)
 3064        }
 3065    }
 3066
 3067    pub fn close_all_items_and_panes(
 3068        &mut self,
 3069        action: &CloseAllItemsAndPanes,
 3070        window: &mut Window,
 3071        cx: &mut Context<Self>,
 3072    ) {
 3073        if let Some(task) = self.close_all_internal(
 3074            false,
 3075            action.save_intent.unwrap_or(SaveIntent::Close),
 3076            window,
 3077            cx,
 3078        ) {
 3079            task.detach_and_log_err(cx)
 3080        }
 3081    }
 3082
 3083    fn close_all_internal(
 3084        &mut self,
 3085        retain_active_pane: bool,
 3086        save_intent: SaveIntent,
 3087        window: &mut Window,
 3088        cx: &mut Context<Self>,
 3089    ) -> Option<Task<Result<()>>> {
 3090        let current_pane = self.active_pane();
 3091
 3092        let mut tasks = Vec::new();
 3093
 3094        if retain_active_pane {
 3095            let current_pane_close = current_pane.update(cx, |pane, cx| {
 3096                pane.close_other_items(
 3097                    &CloseOtherItems {
 3098                        save_intent: None,
 3099                        close_pinned: false,
 3100                    },
 3101                    None,
 3102                    window,
 3103                    cx,
 3104                )
 3105            });
 3106
 3107            tasks.push(current_pane_close);
 3108        }
 3109
 3110        for pane in self.panes() {
 3111            if retain_active_pane && pane.entity_id() == current_pane.entity_id() {
 3112                continue;
 3113            }
 3114
 3115            let close_pane_items = pane.update(cx, |pane: &mut Pane, cx| {
 3116                pane.close_all_items(
 3117                    &CloseAllItems {
 3118                        save_intent: Some(save_intent),
 3119                        close_pinned: false,
 3120                    },
 3121                    window,
 3122                    cx,
 3123                )
 3124            });
 3125
 3126            tasks.push(close_pane_items)
 3127        }
 3128
 3129        if tasks.is_empty() {
 3130            None
 3131        } else {
 3132            Some(cx.spawn_in(window, async move |_, _| {
 3133                for task in tasks {
 3134                    task.await?
 3135                }
 3136                Ok(())
 3137            }))
 3138        }
 3139    }
 3140
 3141    pub fn is_dock_at_position_open(&self, position: DockPosition, cx: &mut Context<Self>) -> bool {
 3142        self.dock_at_position(position).read(cx).is_open()
 3143    }
 3144
 3145    pub fn toggle_dock(
 3146        &mut self,
 3147        dock_side: DockPosition,
 3148        window: &mut Window,
 3149        cx: &mut Context<Self>,
 3150    ) {
 3151        let mut focus_center = false;
 3152        let mut reveal_dock = false;
 3153
 3154        let other_is_zoomed = self.zoomed.is_some() && self.zoomed_position != Some(dock_side);
 3155        let was_visible = self.is_dock_at_position_open(dock_side, cx) && !other_is_zoomed;
 3156        if was_visible {
 3157            self.save_open_dock_positions(cx);
 3158        }
 3159
 3160        let dock = self.dock_at_position(dock_side);
 3161        dock.update(cx, |dock, cx| {
 3162            dock.set_open(!was_visible, window, cx);
 3163
 3164            if dock.active_panel().is_none() {
 3165                let Some(panel_ix) = dock
 3166                    .first_enabled_panel_idx(cx)
 3167                    .log_with_level(log::Level::Info)
 3168                else {
 3169                    return;
 3170                };
 3171                dock.activate_panel(panel_ix, window, cx);
 3172            }
 3173
 3174            if let Some(active_panel) = dock.active_panel() {
 3175                if was_visible {
 3176                    if active_panel
 3177                        .panel_focus_handle(cx)
 3178                        .contains_focused(window, cx)
 3179                    {
 3180                        focus_center = true;
 3181                    }
 3182                } else {
 3183                    let focus_handle = &active_panel.panel_focus_handle(cx);
 3184                    window.focus(focus_handle, cx);
 3185                    reveal_dock = true;
 3186                }
 3187            }
 3188        });
 3189
 3190        if reveal_dock {
 3191            self.dismiss_zoomed_items_to_reveal(Some(dock_side), window, cx);
 3192        }
 3193
 3194        if focus_center {
 3195            self.active_pane
 3196                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3197        }
 3198
 3199        cx.notify();
 3200        self.serialize_workspace(window, cx);
 3201    }
 3202
 3203    fn active_dock(&self, window: &Window, cx: &Context<Self>) -> Option<&Entity<Dock>> {
 3204        self.all_docks().into_iter().find(|&dock| {
 3205            dock.read(cx).is_open() && dock.focus_handle(cx).contains_focused(window, cx)
 3206        })
 3207    }
 3208
 3209    fn close_active_dock(&mut self, window: &mut Window, cx: &mut Context<Self>) -> bool {
 3210        if let Some(dock) = self.active_dock(window, cx).cloned() {
 3211            self.save_open_dock_positions(cx);
 3212            dock.update(cx, |dock, cx| {
 3213                dock.set_open(false, window, cx);
 3214            });
 3215            return true;
 3216        }
 3217        false
 3218    }
 3219
 3220    pub fn close_all_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3221        self.save_open_dock_positions(cx);
 3222        for dock in self.all_docks() {
 3223            dock.update(cx, |dock, cx| {
 3224                dock.set_open(false, window, cx);
 3225            });
 3226        }
 3227
 3228        cx.focus_self(window);
 3229        cx.notify();
 3230        self.serialize_workspace(window, cx);
 3231    }
 3232
 3233    fn get_open_dock_positions(&self, cx: &Context<Self>) -> Vec<DockPosition> {
 3234        self.all_docks()
 3235            .into_iter()
 3236            .filter_map(|dock| {
 3237                let dock_ref = dock.read(cx);
 3238                if dock_ref.is_open() {
 3239                    Some(dock_ref.position())
 3240                } else {
 3241                    None
 3242                }
 3243            })
 3244            .collect()
 3245    }
 3246
 3247    /// Saves the positions of currently open docks.
 3248    ///
 3249    /// Updates `last_open_dock_positions` with positions of all currently open
 3250    /// docks, to later be restored by the 'Toggle All Docks' action.
 3251    fn save_open_dock_positions(&mut self, cx: &mut Context<Self>) {
 3252        let open_dock_positions = self.get_open_dock_positions(cx);
 3253        if !open_dock_positions.is_empty() {
 3254            self.last_open_dock_positions = open_dock_positions;
 3255        }
 3256    }
 3257
 3258    /// Toggles all docks between open and closed states.
 3259    ///
 3260    /// If any docks are open, closes all and remembers their positions. If all
 3261    /// docks are closed, restores the last remembered dock configuration.
 3262    fn toggle_all_docks(
 3263        &mut self,
 3264        _: &ToggleAllDocks,
 3265        window: &mut Window,
 3266        cx: &mut Context<Self>,
 3267    ) {
 3268        let open_dock_positions = self.get_open_dock_positions(cx);
 3269
 3270        if !open_dock_positions.is_empty() {
 3271            self.close_all_docks(window, cx);
 3272        } else if !self.last_open_dock_positions.is_empty() {
 3273            self.restore_last_open_docks(window, cx);
 3274        }
 3275    }
 3276
 3277    /// Reopens docks from the most recently remembered configuration.
 3278    ///
 3279    /// Opens all docks whose positions are stored in `last_open_dock_positions`
 3280    /// and clears the stored positions.
 3281    fn restore_last_open_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3282        let positions_to_open = std::mem::take(&mut self.last_open_dock_positions);
 3283
 3284        for position in positions_to_open {
 3285            let dock = self.dock_at_position(position);
 3286            dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 3287        }
 3288
 3289        cx.focus_self(window);
 3290        cx.notify();
 3291        self.serialize_workspace(window, cx);
 3292    }
 3293
 3294    /// Transfer focus to the panel of the given type.
 3295    pub fn focus_panel<T: Panel>(
 3296        &mut self,
 3297        window: &mut Window,
 3298        cx: &mut Context<Self>,
 3299    ) -> Option<Entity<T>> {
 3300        let panel = self.focus_or_unfocus_panel::<T>(window, cx, |_, _, _| true)?;
 3301        panel.to_any().downcast().ok()
 3302    }
 3303
 3304    /// Focus the panel of the given type if it isn't already focused. If it is
 3305    /// already focused, then transfer focus back to the workspace center.
 3306    pub fn toggle_panel_focus<T: Panel>(
 3307        &mut self,
 3308        window: &mut Window,
 3309        cx: &mut Context<Self>,
 3310    ) -> bool {
 3311        let mut did_focus_panel = false;
 3312        self.focus_or_unfocus_panel::<T>(window, cx, |panel, window, cx| {
 3313            did_focus_panel = !panel.panel_focus_handle(cx).contains_focused(window, cx);
 3314            did_focus_panel
 3315        });
 3316        did_focus_panel
 3317    }
 3318
 3319    pub fn activate_panel_for_proto_id(
 3320        &mut self,
 3321        panel_id: PanelId,
 3322        window: &mut Window,
 3323        cx: &mut Context<Self>,
 3324    ) -> Option<Arc<dyn PanelHandle>> {
 3325        let mut panel = None;
 3326        for dock in self.all_docks() {
 3327            if let Some(panel_index) = dock.read(cx).panel_index_for_proto_id(panel_id) {
 3328                panel = dock.update(cx, |dock, cx| {
 3329                    dock.activate_panel(panel_index, window, cx);
 3330                    dock.set_open(true, window, cx);
 3331                    dock.active_panel().cloned()
 3332                });
 3333                break;
 3334            }
 3335        }
 3336
 3337        if panel.is_some() {
 3338            cx.notify();
 3339            self.serialize_workspace(window, cx);
 3340        }
 3341
 3342        panel
 3343    }
 3344
 3345    /// Focus or unfocus the given panel type, depending on the given callback.
 3346    fn focus_or_unfocus_panel<T: Panel>(
 3347        &mut self,
 3348        window: &mut Window,
 3349        cx: &mut Context<Self>,
 3350        mut should_focus: impl FnMut(&dyn PanelHandle, &mut Window, &mut Context<Dock>) -> bool,
 3351    ) -> Option<Arc<dyn PanelHandle>> {
 3352        let mut result_panel = None;
 3353        let mut serialize = false;
 3354        for dock in self.all_docks() {
 3355            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3356                let mut focus_center = false;
 3357                let panel = dock.update(cx, |dock, cx| {
 3358                    dock.activate_panel(panel_index, window, cx);
 3359
 3360                    let panel = dock.active_panel().cloned();
 3361                    if let Some(panel) = panel.as_ref() {
 3362                        if should_focus(&**panel, window, cx) {
 3363                            dock.set_open(true, window, cx);
 3364                            panel.panel_focus_handle(cx).focus(window, cx);
 3365                        } else {
 3366                            focus_center = true;
 3367                        }
 3368                    }
 3369                    panel
 3370                });
 3371
 3372                if focus_center {
 3373                    self.active_pane
 3374                        .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3375                }
 3376
 3377                result_panel = panel;
 3378                serialize = true;
 3379                break;
 3380            }
 3381        }
 3382
 3383        if serialize {
 3384            self.serialize_workspace(window, cx);
 3385        }
 3386
 3387        cx.notify();
 3388        result_panel
 3389    }
 3390
 3391    /// Open the panel of the given type
 3392    pub fn open_panel<T: Panel>(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3393        for dock in self.all_docks() {
 3394            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3395                dock.update(cx, |dock, cx| {
 3396                    dock.activate_panel(panel_index, window, cx);
 3397                    dock.set_open(true, window, cx);
 3398                });
 3399            }
 3400        }
 3401    }
 3402
 3403    pub fn close_panel<T: Panel>(&self, window: &mut Window, cx: &mut Context<Self>) {
 3404        for dock in self.all_docks().iter() {
 3405            dock.update(cx, |dock, cx| {
 3406                if dock.panel::<T>().is_some() {
 3407                    dock.set_open(false, window, cx)
 3408                }
 3409            })
 3410        }
 3411    }
 3412
 3413    pub fn panel<T: Panel>(&self, cx: &App) -> Option<Entity<T>> {
 3414        self.all_docks()
 3415            .iter()
 3416            .find_map(|dock| dock.read(cx).panel::<T>())
 3417    }
 3418
 3419    fn dismiss_zoomed_items_to_reveal(
 3420        &mut self,
 3421        dock_to_reveal: Option<DockPosition>,
 3422        window: &mut Window,
 3423        cx: &mut Context<Self>,
 3424    ) {
 3425        // If a center pane is zoomed, unzoom it.
 3426        for pane in &self.panes {
 3427            if pane != &self.active_pane || dock_to_reveal.is_some() {
 3428                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 3429            }
 3430        }
 3431
 3432        // If another dock is zoomed, hide it.
 3433        let mut focus_center = false;
 3434        for dock in self.all_docks() {
 3435            dock.update(cx, |dock, cx| {
 3436                if Some(dock.position()) != dock_to_reveal
 3437                    && let Some(panel) = dock.active_panel()
 3438                    && panel.is_zoomed(window, cx)
 3439                {
 3440                    focus_center |= panel.panel_focus_handle(cx).contains_focused(window, cx);
 3441                    dock.set_open(false, window, cx);
 3442                }
 3443            });
 3444        }
 3445
 3446        if focus_center {
 3447            self.active_pane
 3448                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3449        }
 3450
 3451        if self.zoomed_position != dock_to_reveal {
 3452            self.zoomed = None;
 3453            self.zoomed_position = None;
 3454            cx.emit(Event::ZoomChanged);
 3455        }
 3456
 3457        cx.notify();
 3458    }
 3459
 3460    fn add_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 3461        let pane = cx.new(|cx| {
 3462            let mut pane = Pane::new(
 3463                self.weak_handle(),
 3464                self.project.clone(),
 3465                self.pane_history_timestamp.clone(),
 3466                None,
 3467                NewFile.boxed_clone(),
 3468                true,
 3469                window,
 3470                cx,
 3471            );
 3472            pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 3473            pane
 3474        });
 3475        cx.subscribe_in(&pane, window, Self::handle_pane_event)
 3476            .detach();
 3477        self.panes.push(pane.clone());
 3478
 3479        window.focus(&pane.focus_handle(cx), cx);
 3480
 3481        cx.emit(Event::PaneAdded(pane.clone()));
 3482        pane
 3483    }
 3484
 3485    pub fn add_item_to_center(
 3486        &mut self,
 3487        item: Box<dyn ItemHandle>,
 3488        window: &mut Window,
 3489        cx: &mut Context<Self>,
 3490    ) -> bool {
 3491        if let Some(center_pane) = self.last_active_center_pane.clone() {
 3492            if let Some(center_pane) = center_pane.upgrade() {
 3493                center_pane.update(cx, |pane, cx| {
 3494                    pane.add_item(item, true, true, None, window, cx)
 3495                });
 3496                true
 3497            } else {
 3498                false
 3499            }
 3500        } else {
 3501            false
 3502        }
 3503    }
 3504
 3505    pub fn add_item_to_active_pane(
 3506        &mut self,
 3507        item: Box<dyn ItemHandle>,
 3508        destination_index: Option<usize>,
 3509        focus_item: bool,
 3510        window: &mut Window,
 3511        cx: &mut App,
 3512    ) {
 3513        self.add_item(
 3514            self.active_pane.clone(),
 3515            item,
 3516            destination_index,
 3517            false,
 3518            focus_item,
 3519            window,
 3520            cx,
 3521        )
 3522    }
 3523
 3524    pub fn add_item(
 3525        &mut self,
 3526        pane: Entity<Pane>,
 3527        item: Box<dyn ItemHandle>,
 3528        destination_index: Option<usize>,
 3529        activate_pane: bool,
 3530        focus_item: bool,
 3531        window: &mut Window,
 3532        cx: &mut App,
 3533    ) {
 3534        pane.update(cx, |pane, cx| {
 3535            pane.add_item(
 3536                item,
 3537                activate_pane,
 3538                focus_item,
 3539                destination_index,
 3540                window,
 3541                cx,
 3542            )
 3543        });
 3544    }
 3545
 3546    pub fn split_item(
 3547        &mut self,
 3548        split_direction: SplitDirection,
 3549        item: Box<dyn ItemHandle>,
 3550        window: &mut Window,
 3551        cx: &mut Context<Self>,
 3552    ) {
 3553        let new_pane = self.split_pane(self.active_pane.clone(), split_direction, window, cx);
 3554        self.add_item(new_pane, item, None, true, true, window, cx);
 3555    }
 3556
 3557    pub fn open_abs_path(
 3558        &mut self,
 3559        abs_path: PathBuf,
 3560        options: OpenOptions,
 3561        window: &mut Window,
 3562        cx: &mut Context<Self>,
 3563    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3564        cx.spawn_in(window, async move |workspace, cx| {
 3565            let open_paths_task_result = workspace
 3566                .update_in(cx, |workspace, window, cx| {
 3567                    workspace.open_paths(vec![abs_path.clone()], options, None, window, cx)
 3568                })
 3569                .with_context(|| format!("open abs path {abs_path:?} task spawn"))?
 3570                .await;
 3571            anyhow::ensure!(
 3572                open_paths_task_result.len() == 1,
 3573                "open abs path {abs_path:?} task returned incorrect number of results"
 3574            );
 3575            match open_paths_task_result
 3576                .into_iter()
 3577                .next()
 3578                .expect("ensured single task result")
 3579            {
 3580                Some(open_result) => {
 3581                    open_result.with_context(|| format!("open abs path {abs_path:?} task join"))
 3582                }
 3583                None => anyhow::bail!("open abs path {abs_path:?} task returned None"),
 3584            }
 3585        })
 3586    }
 3587
 3588    pub fn split_abs_path(
 3589        &mut self,
 3590        abs_path: PathBuf,
 3591        visible: bool,
 3592        window: &mut Window,
 3593        cx: &mut Context<Self>,
 3594    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3595        let project_path_task =
 3596            Workspace::project_path_for_path(self.project.clone(), &abs_path, visible, cx);
 3597        cx.spawn_in(window, async move |this, cx| {
 3598            let (_, path) = project_path_task.await?;
 3599            this.update_in(cx, |this, window, cx| this.split_path(path, window, cx))?
 3600                .await
 3601        })
 3602    }
 3603
 3604    pub fn open_path(
 3605        &mut self,
 3606        path: impl Into<ProjectPath>,
 3607        pane: Option<WeakEntity<Pane>>,
 3608        focus_item: bool,
 3609        window: &mut Window,
 3610        cx: &mut App,
 3611    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3612        self.open_path_preview(path, pane, focus_item, false, true, window, cx)
 3613    }
 3614
 3615    pub fn open_path_preview(
 3616        &mut self,
 3617        path: impl Into<ProjectPath>,
 3618        pane: Option<WeakEntity<Pane>>,
 3619        focus_item: bool,
 3620        allow_preview: bool,
 3621        activate: bool,
 3622        window: &mut Window,
 3623        cx: &mut App,
 3624    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3625        let pane = pane.unwrap_or_else(|| {
 3626            self.last_active_center_pane.clone().unwrap_or_else(|| {
 3627                self.panes
 3628                    .first()
 3629                    .expect("There must be an active pane")
 3630                    .downgrade()
 3631            })
 3632        });
 3633
 3634        let project_path = path.into();
 3635        let task = self.load_path(project_path.clone(), window, cx);
 3636        window.spawn(cx, async move |cx| {
 3637            let (project_entry_id, build_item) = task.await?;
 3638
 3639            pane.update_in(cx, |pane, window, cx| {
 3640                pane.open_item(
 3641                    project_entry_id,
 3642                    project_path,
 3643                    focus_item,
 3644                    allow_preview,
 3645                    activate,
 3646                    None,
 3647                    window,
 3648                    cx,
 3649                    build_item,
 3650                )
 3651            })
 3652        })
 3653    }
 3654
 3655    pub fn split_path(
 3656        &mut self,
 3657        path: impl Into<ProjectPath>,
 3658        window: &mut Window,
 3659        cx: &mut Context<Self>,
 3660    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3661        self.split_path_preview(path, false, None, window, cx)
 3662    }
 3663
 3664    pub fn split_path_preview(
 3665        &mut self,
 3666        path: impl Into<ProjectPath>,
 3667        allow_preview: bool,
 3668        split_direction: Option<SplitDirection>,
 3669        window: &mut Window,
 3670        cx: &mut Context<Self>,
 3671    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3672        let pane = self.last_active_center_pane.clone().unwrap_or_else(|| {
 3673            self.panes
 3674                .first()
 3675                .expect("There must be an active pane")
 3676                .downgrade()
 3677        });
 3678
 3679        if let Member::Pane(center_pane) = &self.center.root
 3680            && center_pane.read(cx).items_len() == 0
 3681        {
 3682            return self.open_path(path, Some(pane), true, window, cx);
 3683        }
 3684
 3685        let project_path = path.into();
 3686        let task = self.load_path(project_path.clone(), window, cx);
 3687        cx.spawn_in(window, async move |this, cx| {
 3688            let (project_entry_id, build_item) = task.await?;
 3689            this.update_in(cx, move |this, window, cx| -> Option<_> {
 3690                let pane = pane.upgrade()?;
 3691                let new_pane = this.split_pane(
 3692                    pane,
 3693                    split_direction.unwrap_or(SplitDirection::Right),
 3694                    window,
 3695                    cx,
 3696                );
 3697                new_pane.update(cx, |new_pane, cx| {
 3698                    Some(new_pane.open_item(
 3699                        project_entry_id,
 3700                        project_path,
 3701                        true,
 3702                        allow_preview,
 3703                        true,
 3704                        None,
 3705                        window,
 3706                        cx,
 3707                        build_item,
 3708                    ))
 3709                })
 3710            })
 3711            .map(|option| option.context("pane was dropped"))?
 3712        })
 3713    }
 3714
 3715    fn load_path(
 3716        &mut self,
 3717        path: ProjectPath,
 3718        window: &mut Window,
 3719        cx: &mut App,
 3720    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
 3721        let registry = cx.default_global::<ProjectItemRegistry>().clone();
 3722        registry.open_path(self.project(), &path, window, cx)
 3723    }
 3724
 3725    pub fn find_project_item<T>(
 3726        &self,
 3727        pane: &Entity<Pane>,
 3728        project_item: &Entity<T::Item>,
 3729        cx: &App,
 3730    ) -> Option<Entity<T>>
 3731    where
 3732        T: ProjectItem,
 3733    {
 3734        use project::ProjectItem as _;
 3735        let project_item = project_item.read(cx);
 3736        let entry_id = project_item.entry_id(cx);
 3737        let project_path = project_item.project_path(cx);
 3738
 3739        let mut item = None;
 3740        if let Some(entry_id) = entry_id {
 3741            item = pane.read(cx).item_for_entry(entry_id, cx);
 3742        }
 3743        if item.is_none()
 3744            && let Some(project_path) = project_path
 3745        {
 3746            item = pane.read(cx).item_for_path(project_path, cx);
 3747        }
 3748
 3749        item.and_then(|item| item.downcast::<T>())
 3750    }
 3751
 3752    pub fn is_project_item_open<T>(
 3753        &self,
 3754        pane: &Entity<Pane>,
 3755        project_item: &Entity<T::Item>,
 3756        cx: &App,
 3757    ) -> bool
 3758    where
 3759        T: ProjectItem,
 3760    {
 3761        self.find_project_item::<T>(pane, project_item, cx)
 3762            .is_some()
 3763    }
 3764
 3765    pub fn open_project_item<T>(
 3766        &mut self,
 3767        pane: Entity<Pane>,
 3768        project_item: Entity<T::Item>,
 3769        activate_pane: bool,
 3770        focus_item: bool,
 3771        keep_old_preview: bool,
 3772        allow_new_preview: bool,
 3773        window: &mut Window,
 3774        cx: &mut Context<Self>,
 3775    ) -> Entity<T>
 3776    where
 3777        T: ProjectItem,
 3778    {
 3779        let old_item_id = pane.read(cx).active_item().map(|item| item.item_id());
 3780
 3781        if let Some(item) = self.find_project_item(&pane, &project_item, cx) {
 3782            if !keep_old_preview
 3783                && let Some(old_id) = old_item_id
 3784                && old_id != item.item_id()
 3785            {
 3786                // switching to a different item, so unpreview old active item
 3787                pane.update(cx, |pane, _| {
 3788                    pane.unpreview_item_if_preview(old_id);
 3789                });
 3790            }
 3791
 3792            self.activate_item(&item, activate_pane, focus_item, window, cx);
 3793            if !allow_new_preview {
 3794                pane.update(cx, |pane, _| {
 3795                    pane.unpreview_item_if_preview(item.item_id());
 3796                });
 3797            }
 3798            return item;
 3799        }
 3800
 3801        let item = pane.update(cx, |pane, cx| {
 3802            cx.new(|cx| {
 3803                T::for_project_item(self.project().clone(), Some(pane), project_item, window, cx)
 3804            })
 3805        });
 3806        let mut destination_index = None;
 3807        pane.update(cx, |pane, cx| {
 3808            if !keep_old_preview && let Some(old_id) = old_item_id {
 3809                pane.unpreview_item_if_preview(old_id);
 3810            }
 3811            if allow_new_preview {
 3812                destination_index = pane.replace_preview_item_id(item.item_id(), window, cx);
 3813            }
 3814        });
 3815
 3816        self.add_item(
 3817            pane,
 3818            Box::new(item.clone()),
 3819            destination_index,
 3820            activate_pane,
 3821            focus_item,
 3822            window,
 3823            cx,
 3824        );
 3825        item
 3826    }
 3827
 3828    pub fn open_shared_screen(
 3829        &mut self,
 3830        peer_id: PeerId,
 3831        window: &mut Window,
 3832        cx: &mut Context<Self>,
 3833    ) {
 3834        if let Some(shared_screen) =
 3835            self.shared_screen_for_peer(peer_id, &self.active_pane, window, cx)
 3836        {
 3837            self.active_pane.update(cx, |pane, cx| {
 3838                pane.add_item(Box::new(shared_screen), false, true, None, window, cx)
 3839            });
 3840        }
 3841    }
 3842
 3843    pub fn activate_item(
 3844        &mut self,
 3845        item: &dyn ItemHandle,
 3846        activate_pane: bool,
 3847        focus_item: bool,
 3848        window: &mut Window,
 3849        cx: &mut App,
 3850    ) -> bool {
 3851        let result = self.panes.iter().find_map(|pane| {
 3852            pane.read(cx)
 3853                .index_for_item(item)
 3854                .map(|ix| (pane.clone(), ix))
 3855        });
 3856        if let Some((pane, ix)) = result {
 3857            pane.update(cx, |pane, cx| {
 3858                pane.activate_item(ix, activate_pane, focus_item, window, cx)
 3859            });
 3860            true
 3861        } else {
 3862            false
 3863        }
 3864    }
 3865
 3866    fn activate_pane_at_index(
 3867        &mut self,
 3868        action: &ActivatePane,
 3869        window: &mut Window,
 3870        cx: &mut Context<Self>,
 3871    ) {
 3872        let panes = self.center.panes();
 3873        if let Some(pane) = panes.get(action.0).map(|p| (*p).clone()) {
 3874            window.focus(&pane.focus_handle(cx), cx);
 3875        } else {
 3876            self.split_and_clone(self.active_pane.clone(), SplitDirection::Right, window, cx)
 3877                .detach();
 3878        }
 3879    }
 3880
 3881    fn move_item_to_pane_at_index(
 3882        &mut self,
 3883        action: &MoveItemToPane,
 3884        window: &mut Window,
 3885        cx: &mut Context<Self>,
 3886    ) {
 3887        let panes = self.center.panes();
 3888        let destination = match panes.get(action.destination) {
 3889            Some(&destination) => destination.clone(),
 3890            None => {
 3891                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 3892                    return;
 3893                }
 3894                let direction = SplitDirection::Right;
 3895                let split_off_pane = self
 3896                    .find_pane_in_direction(direction, cx)
 3897                    .unwrap_or_else(|| self.active_pane.clone());
 3898                let new_pane = self.add_pane(window, cx);
 3899                if self
 3900                    .center
 3901                    .split(&split_off_pane, &new_pane, direction, cx)
 3902                    .log_err()
 3903                    .is_none()
 3904                {
 3905                    return;
 3906                };
 3907                new_pane
 3908            }
 3909        };
 3910
 3911        if action.clone {
 3912            if self
 3913                .active_pane
 3914                .read(cx)
 3915                .active_item()
 3916                .is_some_and(|item| item.can_split(cx))
 3917            {
 3918                clone_active_item(
 3919                    self.database_id(),
 3920                    &self.active_pane,
 3921                    &destination,
 3922                    action.focus,
 3923                    window,
 3924                    cx,
 3925                );
 3926                return;
 3927            }
 3928        }
 3929        move_active_item(
 3930            &self.active_pane,
 3931            &destination,
 3932            action.focus,
 3933            true,
 3934            window,
 3935            cx,
 3936        )
 3937    }
 3938
 3939    pub fn activate_next_pane(&mut self, window: &mut Window, cx: &mut App) {
 3940        let panes = self.center.panes();
 3941        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 3942            let next_ix = (ix + 1) % panes.len();
 3943            let next_pane = panes[next_ix].clone();
 3944            window.focus(&next_pane.focus_handle(cx), cx);
 3945        }
 3946    }
 3947
 3948    pub fn activate_previous_pane(&mut self, window: &mut Window, cx: &mut App) {
 3949        let panes = self.center.panes();
 3950        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 3951            let prev_ix = cmp::min(ix.wrapping_sub(1), panes.len() - 1);
 3952            let prev_pane = panes[prev_ix].clone();
 3953            window.focus(&prev_pane.focus_handle(cx), cx);
 3954        }
 3955    }
 3956
 3957    pub fn activate_pane_in_direction(
 3958        &mut self,
 3959        direction: SplitDirection,
 3960        window: &mut Window,
 3961        cx: &mut App,
 3962    ) {
 3963        use ActivateInDirectionTarget as Target;
 3964        enum Origin {
 3965            LeftDock,
 3966            RightDock,
 3967            BottomDock,
 3968            Center,
 3969        }
 3970
 3971        let origin: Origin = [
 3972            (&self.left_dock, Origin::LeftDock),
 3973            (&self.right_dock, Origin::RightDock),
 3974            (&self.bottom_dock, Origin::BottomDock),
 3975        ]
 3976        .into_iter()
 3977        .find_map(|(dock, origin)| {
 3978            if dock.focus_handle(cx).contains_focused(window, cx) && dock.read(cx).is_open() {
 3979                Some(origin)
 3980            } else {
 3981                None
 3982            }
 3983        })
 3984        .unwrap_or(Origin::Center);
 3985
 3986        let get_last_active_pane = || {
 3987            let pane = self
 3988                .last_active_center_pane
 3989                .clone()
 3990                .unwrap_or_else(|| {
 3991                    self.panes
 3992                        .first()
 3993                        .expect("There must be an active pane")
 3994                        .downgrade()
 3995                })
 3996                .upgrade()?;
 3997            (pane.read(cx).items_len() != 0).then_some(pane)
 3998        };
 3999
 4000        let try_dock =
 4001            |dock: &Entity<Dock>| dock.read(cx).is_open().then(|| Target::Dock(dock.clone()));
 4002
 4003        let target = match (origin, direction) {
 4004            // We're in the center, so we first try to go to a different pane,
 4005            // otherwise try to go to a dock.
 4006            (Origin::Center, direction) => {
 4007                if let Some(pane) = self.find_pane_in_direction(direction, cx) {
 4008                    Some(Target::Pane(pane))
 4009                } else {
 4010                    match direction {
 4011                        SplitDirection::Up => None,
 4012                        SplitDirection::Down => try_dock(&self.bottom_dock),
 4013                        SplitDirection::Left => try_dock(&self.left_dock),
 4014                        SplitDirection::Right => try_dock(&self.right_dock),
 4015                    }
 4016                }
 4017            }
 4018
 4019            (Origin::LeftDock, SplitDirection::Right) => {
 4020                if let Some(last_active_pane) = get_last_active_pane() {
 4021                    Some(Target::Pane(last_active_pane))
 4022                } else {
 4023                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.right_dock))
 4024                }
 4025            }
 4026
 4027            (Origin::LeftDock, SplitDirection::Down)
 4028            | (Origin::RightDock, SplitDirection::Down) => try_dock(&self.bottom_dock),
 4029
 4030            (Origin::BottomDock, SplitDirection::Up) => get_last_active_pane().map(Target::Pane),
 4031            (Origin::BottomDock, SplitDirection::Left) => try_dock(&self.left_dock),
 4032            (Origin::BottomDock, SplitDirection::Right) => try_dock(&self.right_dock),
 4033
 4034            (Origin::RightDock, SplitDirection::Left) => {
 4035                if let Some(last_active_pane) = get_last_active_pane() {
 4036                    Some(Target::Pane(last_active_pane))
 4037                } else {
 4038                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.left_dock))
 4039                }
 4040            }
 4041
 4042            _ => None,
 4043        };
 4044
 4045        match target {
 4046            Some(ActivateInDirectionTarget::Pane(pane)) => {
 4047                let pane = pane.read(cx);
 4048                if let Some(item) = pane.active_item() {
 4049                    item.item_focus_handle(cx).focus(window, cx);
 4050                } else {
 4051                    log::error!(
 4052                        "Could not find a focus target when in switching focus in {direction} direction for a pane",
 4053                    );
 4054                }
 4055            }
 4056            Some(ActivateInDirectionTarget::Dock(dock)) => {
 4057                // Defer this to avoid a panic when the dock's active panel is already on the stack.
 4058                window.defer(cx, move |window, cx| {
 4059                    let dock = dock.read(cx);
 4060                    if let Some(panel) = dock.active_panel() {
 4061                        panel.panel_focus_handle(cx).focus(window, cx);
 4062                    } else {
 4063                        log::error!("Could not find a focus target when in switching focus in {direction} direction for a {:?} dock", dock.position());
 4064                    }
 4065                })
 4066            }
 4067            None => {}
 4068        }
 4069    }
 4070
 4071    pub fn move_item_to_pane_in_direction(
 4072        &mut self,
 4073        action: &MoveItemToPaneInDirection,
 4074        window: &mut Window,
 4075        cx: &mut Context<Self>,
 4076    ) {
 4077        let destination = match self.find_pane_in_direction(action.direction, cx) {
 4078            Some(destination) => destination,
 4079            None => {
 4080                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 4081                    return;
 4082                }
 4083                let new_pane = self.add_pane(window, cx);
 4084                if self
 4085                    .center
 4086                    .split(&self.active_pane, &new_pane, action.direction, cx)
 4087                    .log_err()
 4088                    .is_none()
 4089                {
 4090                    return;
 4091                };
 4092                new_pane
 4093            }
 4094        };
 4095
 4096        if action.clone {
 4097            if self
 4098                .active_pane
 4099                .read(cx)
 4100                .active_item()
 4101                .is_some_and(|item| item.can_split(cx))
 4102            {
 4103                clone_active_item(
 4104                    self.database_id(),
 4105                    &self.active_pane,
 4106                    &destination,
 4107                    action.focus,
 4108                    window,
 4109                    cx,
 4110                );
 4111                return;
 4112            }
 4113        }
 4114        move_active_item(
 4115            &self.active_pane,
 4116            &destination,
 4117            action.focus,
 4118            true,
 4119            window,
 4120            cx,
 4121        );
 4122    }
 4123
 4124    pub fn bounding_box_for_pane(&self, pane: &Entity<Pane>) -> Option<Bounds<Pixels>> {
 4125        self.center.bounding_box_for_pane(pane)
 4126    }
 4127
 4128    pub fn find_pane_in_direction(
 4129        &mut self,
 4130        direction: SplitDirection,
 4131        cx: &App,
 4132    ) -> Option<Entity<Pane>> {
 4133        self.center
 4134            .find_pane_in_direction(&self.active_pane, direction, cx)
 4135            .cloned()
 4136    }
 4137
 4138    pub fn swap_pane_in_direction(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 4139        if let Some(to) = self.find_pane_in_direction(direction, cx) {
 4140            self.center.swap(&self.active_pane, &to, cx);
 4141            cx.notify();
 4142        }
 4143    }
 4144
 4145    pub fn move_pane_to_border(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 4146        if self
 4147            .center
 4148            .move_to_border(&self.active_pane, direction, cx)
 4149            .unwrap()
 4150        {
 4151            cx.notify();
 4152        }
 4153    }
 4154
 4155    pub fn resize_pane(
 4156        &mut self,
 4157        axis: gpui::Axis,
 4158        amount: Pixels,
 4159        window: &mut Window,
 4160        cx: &mut Context<Self>,
 4161    ) {
 4162        let docks = self.all_docks();
 4163        let active_dock = docks
 4164            .into_iter()
 4165            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 4166
 4167        if let Some(dock) = active_dock {
 4168            let Some(panel_size) = dock.read(cx).active_panel_size(window, cx) else {
 4169                return;
 4170            };
 4171            match dock.read(cx).position() {
 4172                DockPosition::Left => self.resize_left_dock(panel_size + amount, window, cx),
 4173                DockPosition::Bottom => self.resize_bottom_dock(panel_size + amount, window, cx),
 4174                DockPosition::Right => self.resize_right_dock(panel_size + amount, window, cx),
 4175            }
 4176        } else {
 4177            self.center
 4178                .resize(&self.active_pane, axis, amount, &self.bounds, cx);
 4179        }
 4180        cx.notify();
 4181    }
 4182
 4183    pub fn reset_pane_sizes(&mut self, cx: &mut Context<Self>) {
 4184        self.center.reset_pane_sizes(cx);
 4185        cx.notify();
 4186    }
 4187
 4188    fn handle_pane_focused(
 4189        &mut self,
 4190        pane: Entity<Pane>,
 4191        window: &mut Window,
 4192        cx: &mut Context<Self>,
 4193    ) {
 4194        // This is explicitly hoisted out of the following check for pane identity as
 4195        // terminal panel panes are not registered as a center panes.
 4196        self.status_bar.update(cx, |status_bar, cx| {
 4197            status_bar.set_active_pane(&pane, window, cx);
 4198        });
 4199        if self.active_pane != pane {
 4200            self.set_active_pane(&pane, window, cx);
 4201        }
 4202
 4203        if self.last_active_center_pane.is_none() {
 4204            self.last_active_center_pane = Some(pane.downgrade());
 4205        }
 4206
 4207        self.dismiss_zoomed_items_to_reveal(None, window, cx);
 4208        if pane.read(cx).is_zoomed() {
 4209            self.zoomed = Some(pane.downgrade().into());
 4210        } else {
 4211            self.zoomed = None;
 4212        }
 4213        self.zoomed_position = None;
 4214        cx.emit(Event::ZoomChanged);
 4215        self.update_active_view_for_followers(window, cx);
 4216        pane.update(cx, |pane, _| {
 4217            pane.track_alternate_file_items();
 4218        });
 4219
 4220        cx.notify();
 4221    }
 4222
 4223    fn set_active_pane(
 4224        &mut self,
 4225        pane: &Entity<Pane>,
 4226        window: &mut Window,
 4227        cx: &mut Context<Self>,
 4228    ) {
 4229        self.active_pane = pane.clone();
 4230        self.active_item_path_changed(true, window, cx);
 4231        self.last_active_center_pane = Some(pane.downgrade());
 4232    }
 4233
 4234    fn handle_panel_focused(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4235        self.update_active_view_for_followers(window, cx);
 4236    }
 4237
 4238    fn handle_pane_event(
 4239        &mut self,
 4240        pane: &Entity<Pane>,
 4241        event: &pane::Event,
 4242        window: &mut Window,
 4243        cx: &mut Context<Self>,
 4244    ) {
 4245        let mut serialize_workspace = true;
 4246        match event {
 4247            pane::Event::AddItem { item } => {
 4248                item.added_to_pane(self, pane.clone(), window, cx);
 4249                cx.emit(Event::ItemAdded {
 4250                    item: item.boxed_clone(),
 4251                });
 4252            }
 4253            pane::Event::Split { direction, mode } => {
 4254                match mode {
 4255                    SplitMode::ClonePane => {
 4256                        self.split_and_clone(pane.clone(), *direction, window, cx)
 4257                            .detach();
 4258                    }
 4259                    SplitMode::EmptyPane => {
 4260                        self.split_pane(pane.clone(), *direction, window, cx);
 4261                    }
 4262                    SplitMode::MovePane => {
 4263                        self.split_and_move(pane.clone(), *direction, window, cx);
 4264                    }
 4265                };
 4266            }
 4267            pane::Event::JoinIntoNext => {
 4268                self.join_pane_into_next(pane.clone(), window, cx);
 4269            }
 4270            pane::Event::JoinAll => {
 4271                self.join_all_panes(window, cx);
 4272            }
 4273            pane::Event::Remove { focus_on_pane } => {
 4274                self.remove_pane(pane.clone(), focus_on_pane.clone(), window, cx);
 4275            }
 4276            pane::Event::ActivateItem {
 4277                local,
 4278                focus_changed,
 4279            } => {
 4280                window.invalidate_character_coordinates();
 4281
 4282                pane.update(cx, |pane, _| {
 4283                    pane.track_alternate_file_items();
 4284                });
 4285                if *local {
 4286                    self.unfollow_in_pane(pane, window, cx);
 4287                }
 4288                serialize_workspace = *focus_changed || pane != self.active_pane();
 4289                if pane == self.active_pane() {
 4290                    self.active_item_path_changed(*focus_changed, window, cx);
 4291                    self.update_active_view_for_followers(window, cx);
 4292                } else if *local {
 4293                    self.set_active_pane(pane, window, cx);
 4294                }
 4295            }
 4296            pane::Event::UserSavedItem { item, save_intent } => {
 4297                cx.emit(Event::UserSavedItem {
 4298                    pane: pane.downgrade(),
 4299                    item: item.boxed_clone(),
 4300                    save_intent: *save_intent,
 4301                });
 4302                serialize_workspace = false;
 4303            }
 4304            pane::Event::ChangeItemTitle => {
 4305                if *pane == self.active_pane {
 4306                    self.active_item_path_changed(false, window, cx);
 4307                }
 4308                serialize_workspace = false;
 4309            }
 4310            pane::Event::RemovedItem { item } => {
 4311                cx.emit(Event::ActiveItemChanged);
 4312                self.update_window_edited(window, cx);
 4313                if let hash_map::Entry::Occupied(entry) = self.panes_by_item.entry(item.item_id())
 4314                    && entry.get().entity_id() == pane.entity_id()
 4315                {
 4316                    entry.remove();
 4317                }
 4318                cx.emit(Event::ItemRemoved {
 4319                    item_id: item.item_id(),
 4320                });
 4321            }
 4322            pane::Event::Focus => {
 4323                window.invalidate_character_coordinates();
 4324                self.handle_pane_focused(pane.clone(), window, cx);
 4325            }
 4326            pane::Event::ZoomIn => {
 4327                if *pane == self.active_pane {
 4328                    pane.update(cx, |pane, cx| pane.set_zoomed(true, cx));
 4329                    if pane.read(cx).has_focus(window, cx) {
 4330                        self.zoomed = Some(pane.downgrade().into());
 4331                        self.zoomed_position = None;
 4332                        cx.emit(Event::ZoomChanged);
 4333                    }
 4334                    cx.notify();
 4335                }
 4336            }
 4337            pane::Event::ZoomOut => {
 4338                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 4339                if self.zoomed_position.is_none() {
 4340                    self.zoomed = None;
 4341                    cx.emit(Event::ZoomChanged);
 4342                }
 4343                cx.notify();
 4344            }
 4345            pane::Event::ItemPinned | pane::Event::ItemUnpinned => {}
 4346        }
 4347
 4348        if serialize_workspace {
 4349            self.serialize_workspace(window, cx);
 4350        }
 4351    }
 4352
 4353    pub fn unfollow_in_pane(
 4354        &mut self,
 4355        pane: &Entity<Pane>,
 4356        window: &mut Window,
 4357        cx: &mut Context<Workspace>,
 4358    ) -> Option<CollaboratorId> {
 4359        let leader_id = self.leader_for_pane(pane)?;
 4360        self.unfollow(leader_id, window, cx);
 4361        Some(leader_id)
 4362    }
 4363
 4364    pub fn split_pane(
 4365        &mut self,
 4366        pane_to_split: Entity<Pane>,
 4367        split_direction: SplitDirection,
 4368        window: &mut Window,
 4369        cx: &mut Context<Self>,
 4370    ) -> Entity<Pane> {
 4371        let new_pane = self.add_pane(window, cx);
 4372        self.center
 4373            .split(&pane_to_split, &new_pane, split_direction, cx)
 4374            .unwrap();
 4375        cx.notify();
 4376        new_pane
 4377    }
 4378
 4379    pub fn split_and_move(
 4380        &mut self,
 4381        pane: Entity<Pane>,
 4382        direction: SplitDirection,
 4383        window: &mut Window,
 4384        cx: &mut Context<Self>,
 4385    ) {
 4386        let Some(item) = pane.update(cx, |pane, cx| pane.take_active_item(window, cx)) else {
 4387            return;
 4388        };
 4389        let new_pane = self.add_pane(window, cx);
 4390        new_pane.update(cx, |pane, cx| {
 4391            pane.add_item(item, true, true, None, window, cx)
 4392        });
 4393        self.center.split(&pane, &new_pane, direction, cx).unwrap();
 4394        cx.notify();
 4395    }
 4396
 4397    pub fn split_and_clone(
 4398        &mut self,
 4399        pane: Entity<Pane>,
 4400        direction: SplitDirection,
 4401        window: &mut Window,
 4402        cx: &mut Context<Self>,
 4403    ) -> Task<Option<Entity<Pane>>> {
 4404        let Some(item) = pane.read(cx).active_item() else {
 4405            return Task::ready(None);
 4406        };
 4407        if !item.can_split(cx) {
 4408            return Task::ready(None);
 4409        }
 4410        let task = item.clone_on_split(self.database_id(), window, cx);
 4411        cx.spawn_in(window, async move |this, cx| {
 4412            if let Some(clone) = task.await {
 4413                this.update_in(cx, |this, window, cx| {
 4414                    let new_pane = this.add_pane(window, cx);
 4415                    new_pane.update(cx, |pane, cx| {
 4416                        pane.add_item(clone, true, true, None, window, cx)
 4417                    });
 4418                    this.center.split(&pane, &new_pane, direction, cx).unwrap();
 4419                    cx.notify();
 4420                    new_pane
 4421                })
 4422                .ok()
 4423            } else {
 4424                None
 4425            }
 4426        })
 4427    }
 4428
 4429    pub fn join_all_panes(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4430        let active_item = self.active_pane.read(cx).active_item();
 4431        for pane in &self.panes {
 4432            join_pane_into_active(&self.active_pane, pane, window, cx);
 4433        }
 4434        if let Some(active_item) = active_item {
 4435            self.activate_item(active_item.as_ref(), true, true, window, cx);
 4436        }
 4437        cx.notify();
 4438    }
 4439
 4440    pub fn join_pane_into_next(
 4441        &mut self,
 4442        pane: Entity<Pane>,
 4443        window: &mut Window,
 4444        cx: &mut Context<Self>,
 4445    ) {
 4446        let next_pane = self
 4447            .find_pane_in_direction(SplitDirection::Right, cx)
 4448            .or_else(|| self.find_pane_in_direction(SplitDirection::Down, cx))
 4449            .or_else(|| self.find_pane_in_direction(SplitDirection::Left, cx))
 4450            .or_else(|| self.find_pane_in_direction(SplitDirection::Up, cx));
 4451        let Some(next_pane) = next_pane else {
 4452            return;
 4453        };
 4454        move_all_items(&pane, &next_pane, window, cx);
 4455        cx.notify();
 4456    }
 4457
 4458    fn remove_pane(
 4459        &mut self,
 4460        pane: Entity<Pane>,
 4461        focus_on: Option<Entity<Pane>>,
 4462        window: &mut Window,
 4463        cx: &mut Context<Self>,
 4464    ) {
 4465        if self.center.remove(&pane, cx).unwrap() {
 4466            self.force_remove_pane(&pane, &focus_on, window, cx);
 4467            self.unfollow_in_pane(&pane, window, cx);
 4468            self.last_leaders_by_pane.remove(&pane.downgrade());
 4469            for removed_item in pane.read(cx).items() {
 4470                self.panes_by_item.remove(&removed_item.item_id());
 4471            }
 4472
 4473            cx.notify();
 4474        } else {
 4475            self.active_item_path_changed(true, window, cx);
 4476        }
 4477        cx.emit(Event::PaneRemoved);
 4478    }
 4479
 4480    pub fn panes_mut(&mut self) -> &mut [Entity<Pane>] {
 4481        &mut self.panes
 4482    }
 4483
 4484    pub fn panes(&self) -> &[Entity<Pane>] {
 4485        &self.panes
 4486    }
 4487
 4488    pub fn active_pane(&self) -> &Entity<Pane> {
 4489        &self.active_pane
 4490    }
 4491
 4492    pub fn focused_pane(&self, window: &Window, cx: &App) -> Entity<Pane> {
 4493        for dock in self.all_docks() {
 4494            if dock.focus_handle(cx).contains_focused(window, cx)
 4495                && let Some(pane) = dock
 4496                    .read(cx)
 4497                    .active_panel()
 4498                    .and_then(|panel| panel.pane(cx))
 4499            {
 4500                return pane;
 4501            }
 4502        }
 4503        self.active_pane().clone()
 4504    }
 4505
 4506    pub fn adjacent_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 4507        self.find_pane_in_direction(SplitDirection::Right, cx)
 4508            .unwrap_or_else(|| {
 4509                self.split_pane(self.active_pane.clone(), SplitDirection::Right, window, cx)
 4510            })
 4511    }
 4512
 4513    pub fn pane_for(&self, handle: &dyn ItemHandle) -> Option<Entity<Pane>> {
 4514        let weak_pane = self.panes_by_item.get(&handle.item_id())?;
 4515        weak_pane.upgrade()
 4516    }
 4517
 4518    fn collaborator_left(&mut self, peer_id: PeerId, window: &mut Window, cx: &mut Context<Self>) {
 4519        self.follower_states.retain(|leader_id, state| {
 4520            if *leader_id == CollaboratorId::PeerId(peer_id) {
 4521                for item in state.items_by_leader_view_id.values() {
 4522                    item.view.set_leader_id(None, window, cx);
 4523                }
 4524                false
 4525            } else {
 4526                true
 4527            }
 4528        });
 4529        cx.notify();
 4530    }
 4531
 4532    pub fn start_following(
 4533        &mut self,
 4534        leader_id: impl Into<CollaboratorId>,
 4535        window: &mut Window,
 4536        cx: &mut Context<Self>,
 4537    ) -> Option<Task<Result<()>>> {
 4538        let leader_id = leader_id.into();
 4539        let pane = self.active_pane().clone();
 4540
 4541        self.last_leaders_by_pane
 4542            .insert(pane.downgrade(), leader_id);
 4543        self.unfollow(leader_id, window, cx);
 4544        self.unfollow_in_pane(&pane, window, cx);
 4545        self.follower_states.insert(
 4546            leader_id,
 4547            FollowerState {
 4548                center_pane: pane.clone(),
 4549                dock_pane: None,
 4550                active_view_id: None,
 4551                items_by_leader_view_id: Default::default(),
 4552            },
 4553        );
 4554        cx.notify();
 4555
 4556        match leader_id {
 4557            CollaboratorId::PeerId(leader_peer_id) => {
 4558                let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4559                let project_id = self.project.read(cx).remote_id();
 4560                let request = self.app_state.client.request(proto::Follow {
 4561                    room_id,
 4562                    project_id,
 4563                    leader_id: Some(leader_peer_id),
 4564                });
 4565
 4566                Some(cx.spawn_in(window, async move |this, cx| {
 4567                    let response = request.await?;
 4568                    this.update(cx, |this, _| {
 4569                        let state = this
 4570                            .follower_states
 4571                            .get_mut(&leader_id)
 4572                            .context("following interrupted")?;
 4573                        state.active_view_id = response
 4574                            .active_view
 4575                            .as_ref()
 4576                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4577                        anyhow::Ok(())
 4578                    })??;
 4579                    if let Some(view) = response.active_view {
 4580                        Self::add_view_from_leader(this.clone(), leader_peer_id, &view, cx).await?;
 4581                    }
 4582                    this.update_in(cx, |this, window, cx| {
 4583                        this.leader_updated(leader_id, window, cx)
 4584                    })?;
 4585                    Ok(())
 4586                }))
 4587            }
 4588            CollaboratorId::Agent => {
 4589                self.leader_updated(leader_id, window, cx)?;
 4590                Some(Task::ready(Ok(())))
 4591            }
 4592        }
 4593    }
 4594
 4595    pub fn follow_next_collaborator(
 4596        &mut self,
 4597        _: &FollowNextCollaborator,
 4598        window: &mut Window,
 4599        cx: &mut Context<Self>,
 4600    ) {
 4601        let collaborators = self.project.read(cx).collaborators();
 4602        let next_leader_id = if let Some(leader_id) = self.leader_for_pane(&self.active_pane) {
 4603            let mut collaborators = collaborators.keys().copied();
 4604            for peer_id in collaborators.by_ref() {
 4605                if CollaboratorId::PeerId(peer_id) == leader_id {
 4606                    break;
 4607                }
 4608            }
 4609            collaborators.next().map(CollaboratorId::PeerId)
 4610        } else if let Some(last_leader_id) =
 4611            self.last_leaders_by_pane.get(&self.active_pane.downgrade())
 4612        {
 4613            match last_leader_id {
 4614                CollaboratorId::PeerId(peer_id) => {
 4615                    if collaborators.contains_key(peer_id) {
 4616                        Some(*last_leader_id)
 4617                    } else {
 4618                        None
 4619                    }
 4620                }
 4621                CollaboratorId::Agent => Some(CollaboratorId::Agent),
 4622            }
 4623        } else {
 4624            None
 4625        };
 4626
 4627        let pane = self.active_pane.clone();
 4628        let Some(leader_id) = next_leader_id.or_else(|| {
 4629            Some(CollaboratorId::PeerId(
 4630                collaborators.keys().copied().next()?,
 4631            ))
 4632        }) else {
 4633            return;
 4634        };
 4635        if self.unfollow_in_pane(&pane, window, cx) == Some(leader_id) {
 4636            return;
 4637        }
 4638        if let Some(task) = self.start_following(leader_id, window, cx) {
 4639            task.detach_and_log_err(cx)
 4640        }
 4641    }
 4642
 4643    pub fn follow(
 4644        &mut self,
 4645        leader_id: impl Into<CollaboratorId>,
 4646        window: &mut Window,
 4647        cx: &mut Context<Self>,
 4648    ) {
 4649        let leader_id = leader_id.into();
 4650
 4651        if let CollaboratorId::PeerId(peer_id) = leader_id {
 4652            let Some(room) = ActiveCall::global(cx).read(cx).room() else {
 4653                return;
 4654            };
 4655            let room = room.read(cx);
 4656            let Some(remote_participant) = room.remote_participant_for_peer_id(peer_id) else {
 4657                return;
 4658            };
 4659
 4660            let project = self.project.read(cx);
 4661
 4662            let other_project_id = match remote_participant.location {
 4663                call::ParticipantLocation::External => None,
 4664                call::ParticipantLocation::UnsharedProject => None,
 4665                call::ParticipantLocation::SharedProject { project_id } => {
 4666                    if Some(project_id) == project.remote_id() {
 4667                        None
 4668                    } else {
 4669                        Some(project_id)
 4670                    }
 4671                }
 4672            };
 4673
 4674            // if they are active in another project, follow there.
 4675            if let Some(project_id) = other_project_id {
 4676                let app_state = self.app_state.clone();
 4677                crate::join_in_room_project(project_id, remote_participant.user.id, app_state, cx)
 4678                    .detach_and_log_err(cx);
 4679            }
 4680        }
 4681
 4682        // if you're already following, find the right pane and focus it.
 4683        if let Some(follower_state) = self.follower_states.get(&leader_id) {
 4684            window.focus(&follower_state.pane().focus_handle(cx), cx);
 4685
 4686            return;
 4687        }
 4688
 4689        // Otherwise, follow.
 4690        if let Some(task) = self.start_following(leader_id, window, cx) {
 4691            task.detach_and_log_err(cx)
 4692        }
 4693    }
 4694
 4695    pub fn unfollow(
 4696        &mut self,
 4697        leader_id: impl Into<CollaboratorId>,
 4698        window: &mut Window,
 4699        cx: &mut Context<Self>,
 4700    ) -> Option<()> {
 4701        cx.notify();
 4702
 4703        let leader_id = leader_id.into();
 4704        let state = self.follower_states.remove(&leader_id)?;
 4705        for (_, item) in state.items_by_leader_view_id {
 4706            item.view.set_leader_id(None, window, cx);
 4707        }
 4708
 4709        if let CollaboratorId::PeerId(leader_peer_id) = leader_id {
 4710            let project_id = self.project.read(cx).remote_id();
 4711            let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4712            self.app_state
 4713                .client
 4714                .send(proto::Unfollow {
 4715                    room_id,
 4716                    project_id,
 4717                    leader_id: Some(leader_peer_id),
 4718                })
 4719                .log_err();
 4720        }
 4721
 4722        Some(())
 4723    }
 4724
 4725    pub fn is_being_followed(&self, id: impl Into<CollaboratorId>) -> bool {
 4726        self.follower_states.contains_key(&id.into())
 4727    }
 4728
 4729    fn active_item_path_changed(
 4730        &mut self,
 4731        focus_changed: bool,
 4732        window: &mut Window,
 4733        cx: &mut Context<Self>,
 4734    ) {
 4735        cx.emit(Event::ActiveItemChanged);
 4736        let active_entry = self.active_project_path(cx);
 4737        self.project.update(cx, |project, cx| {
 4738            project.set_active_path(active_entry.clone(), cx)
 4739        });
 4740
 4741        if focus_changed && let Some(project_path) = &active_entry {
 4742            let git_store_entity = self.project.read(cx).git_store().clone();
 4743            git_store_entity.update(cx, |git_store, cx| {
 4744                git_store.set_active_repo_for_path(project_path, cx);
 4745            });
 4746        }
 4747
 4748        self.update_window_title(window, cx);
 4749    }
 4750
 4751    fn update_window_title(&mut self, window: &mut Window, cx: &mut App) {
 4752        let project = self.project().read(cx);
 4753        let mut title = String::new();
 4754
 4755        for (i, worktree) in project.visible_worktrees(cx).enumerate() {
 4756            let name = {
 4757                let settings_location = SettingsLocation {
 4758                    worktree_id: worktree.read(cx).id(),
 4759                    path: RelPath::empty(),
 4760                };
 4761
 4762                let settings = WorktreeSettings::get(Some(settings_location), cx);
 4763                match &settings.project_name {
 4764                    Some(name) => name.as_str(),
 4765                    None => worktree.read(cx).root_name_str(),
 4766                }
 4767            };
 4768            if i > 0 {
 4769                title.push_str(", ");
 4770            }
 4771            title.push_str(name);
 4772        }
 4773
 4774        if title.is_empty() {
 4775            title = "empty project".to_string();
 4776        }
 4777
 4778        if let Some(path) = self.active_item(cx).and_then(|item| item.project_path(cx)) {
 4779            let filename = path.path.file_name().or_else(|| {
 4780                Some(
 4781                    project
 4782                        .worktree_for_id(path.worktree_id, cx)?
 4783                        .read(cx)
 4784                        .root_name_str(),
 4785                )
 4786            });
 4787
 4788            if let Some(filename) = filename {
 4789                title.push_str("");
 4790                title.push_str(filename.as_ref());
 4791            }
 4792        }
 4793
 4794        if project.is_via_collab() {
 4795            title.push_str("");
 4796        } else if project.is_shared() {
 4797            title.push_str("");
 4798        }
 4799
 4800        if let Some(last_title) = self.last_window_title.as_ref()
 4801            && &title == last_title
 4802        {
 4803            return;
 4804        }
 4805        window.set_window_title(&title);
 4806        SystemWindowTabController::update_tab_title(
 4807            cx,
 4808            window.window_handle().window_id(),
 4809            SharedString::from(&title),
 4810        );
 4811        self.last_window_title = Some(title);
 4812    }
 4813
 4814    fn update_window_edited(&mut self, window: &mut Window, cx: &mut App) {
 4815        let is_edited = !self.project.read(cx).is_disconnected(cx) && !self.dirty_items.is_empty();
 4816        if is_edited != self.window_edited {
 4817            self.window_edited = is_edited;
 4818            window.set_window_edited(self.window_edited)
 4819        }
 4820    }
 4821
 4822    fn update_item_dirty_state(
 4823        &mut self,
 4824        item: &dyn ItemHandle,
 4825        window: &mut Window,
 4826        cx: &mut App,
 4827    ) {
 4828        let is_dirty = item.is_dirty(cx);
 4829        let item_id = item.item_id();
 4830        let was_dirty = self.dirty_items.contains_key(&item_id);
 4831        if is_dirty == was_dirty {
 4832            return;
 4833        }
 4834        if was_dirty {
 4835            self.dirty_items.remove(&item_id);
 4836            self.update_window_edited(window, cx);
 4837            return;
 4838        }
 4839        if let Some(window_handle) = window.window_handle().downcast::<Self>() {
 4840            let s = item.on_release(
 4841                cx,
 4842                Box::new(move |cx| {
 4843                    window_handle
 4844                        .update(cx, |this, window, cx| {
 4845                            this.dirty_items.remove(&item_id);
 4846                            this.update_window_edited(window, cx)
 4847                        })
 4848                        .ok();
 4849                }),
 4850            );
 4851            self.dirty_items.insert(item_id, s);
 4852            self.update_window_edited(window, cx);
 4853        }
 4854    }
 4855
 4856    fn render_notifications(&self, _window: &mut Window, _cx: &mut Context<Self>) -> Option<Div> {
 4857        if self.notifications.is_empty() {
 4858            None
 4859        } else {
 4860            Some(
 4861                div()
 4862                    .absolute()
 4863                    .right_3()
 4864                    .bottom_3()
 4865                    .w_112()
 4866                    .h_full()
 4867                    .flex()
 4868                    .flex_col()
 4869                    .justify_end()
 4870                    .gap_2()
 4871                    .children(
 4872                        self.notifications
 4873                            .iter()
 4874                            .map(|(_, notification)| notification.clone().into_any()),
 4875                    ),
 4876            )
 4877        }
 4878    }
 4879
 4880    // RPC handlers
 4881
 4882    fn active_view_for_follower(
 4883        &self,
 4884        follower_project_id: Option<u64>,
 4885        window: &mut Window,
 4886        cx: &mut Context<Self>,
 4887    ) -> Option<proto::View> {
 4888        let (item, panel_id) = self.active_item_for_followers(window, cx);
 4889        let item = item?;
 4890        let leader_id = self
 4891            .pane_for(&*item)
 4892            .and_then(|pane| self.leader_for_pane(&pane));
 4893        let leader_peer_id = match leader_id {
 4894            Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 4895            Some(CollaboratorId::Agent) | None => None,
 4896        };
 4897
 4898        let item_handle = item.to_followable_item_handle(cx)?;
 4899        let id = item_handle.remote_id(&self.app_state.client, window, cx)?;
 4900        let variant = item_handle.to_state_proto(window, cx)?;
 4901
 4902        if item_handle.is_project_item(window, cx)
 4903            && (follower_project_id.is_none()
 4904                || follower_project_id != self.project.read(cx).remote_id())
 4905        {
 4906            return None;
 4907        }
 4908
 4909        Some(proto::View {
 4910            id: id.to_proto(),
 4911            leader_id: leader_peer_id,
 4912            variant: Some(variant),
 4913            panel_id: panel_id.map(|id| id as i32),
 4914        })
 4915    }
 4916
 4917    fn handle_follow(
 4918        &mut self,
 4919        follower_project_id: Option<u64>,
 4920        window: &mut Window,
 4921        cx: &mut Context<Self>,
 4922    ) -> proto::FollowResponse {
 4923        let active_view = self.active_view_for_follower(follower_project_id, window, cx);
 4924
 4925        cx.notify();
 4926        proto::FollowResponse {
 4927            views: active_view.iter().cloned().collect(),
 4928            active_view,
 4929        }
 4930    }
 4931
 4932    fn handle_update_followers(
 4933        &mut self,
 4934        leader_id: PeerId,
 4935        message: proto::UpdateFollowers,
 4936        _window: &mut Window,
 4937        _cx: &mut Context<Self>,
 4938    ) {
 4939        self.leader_updates_tx
 4940            .unbounded_send((leader_id, message))
 4941            .ok();
 4942    }
 4943
 4944    async fn process_leader_update(
 4945        this: &WeakEntity<Self>,
 4946        leader_id: PeerId,
 4947        update: proto::UpdateFollowers,
 4948        cx: &mut AsyncWindowContext,
 4949    ) -> Result<()> {
 4950        match update.variant.context("invalid update")? {
 4951            proto::update_followers::Variant::CreateView(view) => {
 4952                let view_id = ViewId::from_proto(view.id.clone().context("invalid view id")?)?;
 4953                let should_add_view = this.update(cx, |this, _| {
 4954                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 4955                        anyhow::Ok(!state.items_by_leader_view_id.contains_key(&view_id))
 4956                    } else {
 4957                        anyhow::Ok(false)
 4958                    }
 4959                })??;
 4960
 4961                if should_add_view {
 4962                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 4963                }
 4964            }
 4965            proto::update_followers::Variant::UpdateActiveView(update_active_view) => {
 4966                let should_add_view = this.update(cx, |this, _| {
 4967                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 4968                        state.active_view_id = update_active_view
 4969                            .view
 4970                            .as_ref()
 4971                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4972
 4973                        if state.active_view_id.is_some_and(|view_id| {
 4974                            !state.items_by_leader_view_id.contains_key(&view_id)
 4975                        }) {
 4976                            anyhow::Ok(true)
 4977                        } else {
 4978                            anyhow::Ok(false)
 4979                        }
 4980                    } else {
 4981                        anyhow::Ok(false)
 4982                    }
 4983                })??;
 4984
 4985                if should_add_view && let Some(view) = update_active_view.view {
 4986                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 4987                }
 4988            }
 4989            proto::update_followers::Variant::UpdateView(update_view) => {
 4990                let variant = update_view.variant.context("missing update view variant")?;
 4991                let id = update_view.id.context("missing update view id")?;
 4992                let mut tasks = Vec::new();
 4993                this.update_in(cx, |this, window, cx| {
 4994                    let project = this.project.clone();
 4995                    if let Some(state) = this.follower_states.get(&leader_id.into()) {
 4996                        let view_id = ViewId::from_proto(id.clone())?;
 4997                        if let Some(item) = state.items_by_leader_view_id.get(&view_id) {
 4998                            tasks.push(item.view.apply_update_proto(
 4999                                &project,
 5000                                variant.clone(),
 5001                                window,
 5002                                cx,
 5003                            ));
 5004                        }
 5005                    }
 5006                    anyhow::Ok(())
 5007                })??;
 5008                try_join_all(tasks).await.log_err();
 5009            }
 5010        }
 5011        this.update_in(cx, |this, window, cx| {
 5012            this.leader_updated(leader_id, window, cx)
 5013        })?;
 5014        Ok(())
 5015    }
 5016
 5017    async fn add_view_from_leader(
 5018        this: WeakEntity<Self>,
 5019        leader_id: PeerId,
 5020        view: &proto::View,
 5021        cx: &mut AsyncWindowContext,
 5022    ) -> Result<()> {
 5023        let this = this.upgrade().context("workspace dropped")?;
 5024
 5025        let Some(id) = view.id.clone() else {
 5026            anyhow::bail!("no id for view");
 5027        };
 5028        let id = ViewId::from_proto(id)?;
 5029        let panel_id = view.panel_id.and_then(proto::PanelId::from_i32);
 5030
 5031        let pane = this.update(cx, |this, _cx| {
 5032            let state = this
 5033                .follower_states
 5034                .get(&leader_id.into())
 5035                .context("stopped following")?;
 5036            anyhow::Ok(state.pane().clone())
 5037        })??;
 5038        let existing_item = pane.update_in(cx, |pane, window, cx| {
 5039            let client = this.read(cx).client().clone();
 5040            pane.items().find_map(|item| {
 5041                let item = item.to_followable_item_handle(cx)?;
 5042                if item.remote_id(&client, window, cx) == Some(id) {
 5043                    Some(item)
 5044                } else {
 5045                    None
 5046                }
 5047            })
 5048        })?;
 5049        let item = if let Some(existing_item) = existing_item {
 5050            existing_item
 5051        } else {
 5052            let variant = view.variant.clone();
 5053            anyhow::ensure!(variant.is_some(), "missing view variant");
 5054
 5055            let task = cx.update(|window, cx| {
 5056                FollowableViewRegistry::from_state_proto(this.clone(), id, variant, window, cx)
 5057            })?;
 5058
 5059            let Some(task) = task else {
 5060                anyhow::bail!(
 5061                    "failed to construct view from leader (maybe from a different version of zed?)"
 5062                );
 5063            };
 5064
 5065            let mut new_item = task.await?;
 5066            pane.update_in(cx, |pane, window, cx| {
 5067                let mut item_to_remove = None;
 5068                for (ix, item) in pane.items().enumerate() {
 5069                    if let Some(item) = item.to_followable_item_handle(cx) {
 5070                        match new_item.dedup(item.as_ref(), window, cx) {
 5071                            Some(item::Dedup::KeepExisting) => {
 5072                                new_item =
 5073                                    item.boxed_clone().to_followable_item_handle(cx).unwrap();
 5074                                break;
 5075                            }
 5076                            Some(item::Dedup::ReplaceExisting) => {
 5077                                item_to_remove = Some((ix, item.item_id()));
 5078                                break;
 5079                            }
 5080                            None => {}
 5081                        }
 5082                    }
 5083                }
 5084
 5085                if let Some((ix, id)) = item_to_remove {
 5086                    pane.remove_item(id, false, false, window, cx);
 5087                    pane.add_item(new_item.boxed_clone(), false, false, Some(ix), window, cx);
 5088                }
 5089            })?;
 5090
 5091            new_item
 5092        };
 5093
 5094        this.update_in(cx, |this, window, cx| {
 5095            let state = this.follower_states.get_mut(&leader_id.into())?;
 5096            item.set_leader_id(Some(leader_id.into()), window, cx);
 5097            state.items_by_leader_view_id.insert(
 5098                id,
 5099                FollowerView {
 5100                    view: item,
 5101                    location: panel_id,
 5102                },
 5103            );
 5104
 5105            Some(())
 5106        })?;
 5107
 5108        Ok(())
 5109    }
 5110
 5111    fn handle_agent_location_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5112        let Some(follower_state) = self.follower_states.get_mut(&CollaboratorId::Agent) else {
 5113            return;
 5114        };
 5115
 5116        if let Some(agent_location) = self.project.read(cx).agent_location() {
 5117            let buffer_entity_id = agent_location.buffer.entity_id();
 5118            let view_id = ViewId {
 5119                creator: CollaboratorId::Agent,
 5120                id: buffer_entity_id.as_u64(),
 5121            };
 5122            follower_state.active_view_id = Some(view_id);
 5123
 5124            let item = match follower_state.items_by_leader_view_id.entry(view_id) {
 5125                hash_map::Entry::Occupied(entry) => Some(entry.into_mut()),
 5126                hash_map::Entry::Vacant(entry) => {
 5127                    let existing_view =
 5128                        follower_state
 5129                            .center_pane
 5130                            .read(cx)
 5131                            .items()
 5132                            .find_map(|item| {
 5133                                let item = item.to_followable_item_handle(cx)?;
 5134                                if item.buffer_kind(cx) == ItemBufferKind::Singleton
 5135                                    && item.project_item_model_ids(cx).as_slice()
 5136                                        == [buffer_entity_id]
 5137                                {
 5138                                    Some(item)
 5139                                } else {
 5140                                    None
 5141                                }
 5142                            });
 5143                    let view = existing_view.or_else(|| {
 5144                        agent_location.buffer.upgrade().and_then(|buffer| {
 5145                            cx.update_default_global(|registry: &mut ProjectItemRegistry, cx| {
 5146                                registry.build_item(buffer, self.project.clone(), None, window, cx)
 5147                            })?
 5148                            .to_followable_item_handle(cx)
 5149                        })
 5150                    });
 5151
 5152                    view.map(|view| {
 5153                        entry.insert(FollowerView {
 5154                            view,
 5155                            location: None,
 5156                        })
 5157                    })
 5158                }
 5159            };
 5160
 5161            if let Some(item) = item {
 5162                item.view
 5163                    .set_leader_id(Some(CollaboratorId::Agent), window, cx);
 5164                item.view
 5165                    .update_agent_location(agent_location.position, window, cx);
 5166            }
 5167        } else {
 5168            follower_state.active_view_id = None;
 5169        }
 5170
 5171        self.leader_updated(CollaboratorId::Agent, window, cx);
 5172    }
 5173
 5174    pub fn update_active_view_for_followers(&mut self, window: &mut Window, cx: &mut App) {
 5175        let mut is_project_item = true;
 5176        let mut update = proto::UpdateActiveView::default();
 5177        if window.is_window_active() {
 5178            let (active_item, panel_id) = self.active_item_for_followers(window, cx);
 5179
 5180            if let Some(item) = active_item
 5181                && item.item_focus_handle(cx).contains_focused(window, cx)
 5182            {
 5183                let leader_id = self
 5184                    .pane_for(&*item)
 5185                    .and_then(|pane| self.leader_for_pane(&pane));
 5186                let leader_peer_id = match leader_id {
 5187                    Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 5188                    Some(CollaboratorId::Agent) | None => None,
 5189                };
 5190
 5191                if let Some(item) = item.to_followable_item_handle(cx) {
 5192                    let id = item
 5193                        .remote_id(&self.app_state.client, window, cx)
 5194                        .map(|id| id.to_proto());
 5195
 5196                    if let Some(id) = id
 5197                        && let Some(variant) = item.to_state_proto(window, cx)
 5198                    {
 5199                        let view = Some(proto::View {
 5200                            id,
 5201                            leader_id: leader_peer_id,
 5202                            variant: Some(variant),
 5203                            panel_id: panel_id.map(|id| id as i32),
 5204                        });
 5205
 5206                        is_project_item = item.is_project_item(window, cx);
 5207                        update = proto::UpdateActiveView { view };
 5208                    };
 5209                }
 5210            }
 5211        }
 5212
 5213        let active_view_id = update.view.as_ref().and_then(|view| view.id.as_ref());
 5214        if active_view_id != self.last_active_view_id.as_ref() {
 5215            self.last_active_view_id = active_view_id.cloned();
 5216            self.update_followers(
 5217                is_project_item,
 5218                proto::update_followers::Variant::UpdateActiveView(update),
 5219                window,
 5220                cx,
 5221            );
 5222        }
 5223    }
 5224
 5225    fn active_item_for_followers(
 5226        &self,
 5227        window: &mut Window,
 5228        cx: &mut App,
 5229    ) -> (Option<Box<dyn ItemHandle>>, Option<proto::PanelId>) {
 5230        let mut active_item = None;
 5231        let mut panel_id = None;
 5232        for dock in self.all_docks() {
 5233            if dock.focus_handle(cx).contains_focused(window, cx)
 5234                && let Some(panel) = dock.read(cx).active_panel()
 5235                && let Some(pane) = panel.pane(cx)
 5236                && let Some(item) = pane.read(cx).active_item()
 5237            {
 5238                active_item = Some(item);
 5239                panel_id = panel.remote_id();
 5240                break;
 5241            }
 5242        }
 5243
 5244        if active_item.is_none() {
 5245            active_item = self.active_pane().read(cx).active_item();
 5246        }
 5247        (active_item, panel_id)
 5248    }
 5249
 5250    fn update_followers(
 5251        &self,
 5252        project_only: bool,
 5253        update: proto::update_followers::Variant,
 5254        _: &mut Window,
 5255        cx: &mut App,
 5256    ) -> Option<()> {
 5257        // If this update only applies to for followers in the current project,
 5258        // then skip it unless this project is shared. If it applies to all
 5259        // followers, regardless of project, then set `project_id` to none,
 5260        // indicating that it goes to all followers.
 5261        let project_id = if project_only {
 5262            Some(self.project.read(cx).remote_id()?)
 5263        } else {
 5264            None
 5265        };
 5266        self.app_state().workspace_store.update(cx, |store, cx| {
 5267            store.update_followers(project_id, update, cx)
 5268        })
 5269    }
 5270
 5271    pub fn leader_for_pane(&self, pane: &Entity<Pane>) -> Option<CollaboratorId> {
 5272        self.follower_states.iter().find_map(|(leader_id, state)| {
 5273            if state.center_pane == *pane || state.dock_pane.as_ref() == Some(pane) {
 5274                Some(*leader_id)
 5275            } else {
 5276                None
 5277            }
 5278        })
 5279    }
 5280
 5281    fn leader_updated(
 5282        &mut self,
 5283        leader_id: impl Into<CollaboratorId>,
 5284        window: &mut Window,
 5285        cx: &mut Context<Self>,
 5286    ) -> Option<Box<dyn ItemHandle>> {
 5287        cx.notify();
 5288
 5289        let leader_id = leader_id.into();
 5290        let (panel_id, item) = match leader_id {
 5291            CollaboratorId::PeerId(peer_id) => self.active_item_for_peer(peer_id, window, cx)?,
 5292            CollaboratorId::Agent => (None, self.active_item_for_agent()?),
 5293        };
 5294
 5295        let state = self.follower_states.get(&leader_id)?;
 5296        let mut transfer_focus = state.center_pane.read(cx).has_focus(window, cx);
 5297        let pane;
 5298        if let Some(panel_id) = panel_id {
 5299            pane = self
 5300                .activate_panel_for_proto_id(panel_id, window, cx)?
 5301                .pane(cx)?;
 5302            let state = self.follower_states.get_mut(&leader_id)?;
 5303            state.dock_pane = Some(pane.clone());
 5304        } else {
 5305            pane = state.center_pane.clone();
 5306            let state = self.follower_states.get_mut(&leader_id)?;
 5307            if let Some(dock_pane) = state.dock_pane.take() {
 5308                transfer_focus |= dock_pane.focus_handle(cx).contains_focused(window, cx);
 5309            }
 5310        }
 5311
 5312        pane.update(cx, |pane, cx| {
 5313            let focus_active_item = pane.has_focus(window, cx) || transfer_focus;
 5314            if let Some(index) = pane.index_for_item(item.as_ref()) {
 5315                pane.activate_item(index, false, false, window, cx);
 5316            } else {
 5317                pane.add_item(item.boxed_clone(), false, false, None, window, cx)
 5318            }
 5319
 5320            if focus_active_item {
 5321                pane.focus_active_item(window, cx)
 5322            }
 5323        });
 5324
 5325        Some(item)
 5326    }
 5327
 5328    fn active_item_for_agent(&self) -> Option<Box<dyn ItemHandle>> {
 5329        let state = self.follower_states.get(&CollaboratorId::Agent)?;
 5330        let active_view_id = state.active_view_id?;
 5331        Some(
 5332            state
 5333                .items_by_leader_view_id
 5334                .get(&active_view_id)?
 5335                .view
 5336                .boxed_clone(),
 5337        )
 5338    }
 5339
 5340    fn active_item_for_peer(
 5341        &self,
 5342        peer_id: PeerId,
 5343        window: &mut Window,
 5344        cx: &mut Context<Self>,
 5345    ) -> Option<(Option<PanelId>, Box<dyn ItemHandle>)> {
 5346        let call = self.active_call()?;
 5347        let room = call.read(cx).room()?.read(cx);
 5348        let participant = room.remote_participant_for_peer_id(peer_id)?;
 5349        let leader_in_this_app;
 5350        let leader_in_this_project;
 5351        match participant.location {
 5352            call::ParticipantLocation::SharedProject { project_id } => {
 5353                leader_in_this_app = true;
 5354                leader_in_this_project = Some(project_id) == self.project.read(cx).remote_id();
 5355            }
 5356            call::ParticipantLocation::UnsharedProject => {
 5357                leader_in_this_app = true;
 5358                leader_in_this_project = false;
 5359            }
 5360            call::ParticipantLocation::External => {
 5361                leader_in_this_app = false;
 5362                leader_in_this_project = false;
 5363            }
 5364        };
 5365        let state = self.follower_states.get(&peer_id.into())?;
 5366        let mut item_to_activate = None;
 5367        if let (Some(active_view_id), true) = (state.active_view_id, leader_in_this_app) {
 5368            if let Some(item) = state.items_by_leader_view_id.get(&active_view_id)
 5369                && (leader_in_this_project || !item.view.is_project_item(window, cx))
 5370            {
 5371                item_to_activate = Some((item.location, item.view.boxed_clone()));
 5372            }
 5373        } else if let Some(shared_screen) =
 5374            self.shared_screen_for_peer(peer_id, &state.center_pane, window, cx)
 5375        {
 5376            item_to_activate = Some((None, Box::new(shared_screen)));
 5377        }
 5378        item_to_activate
 5379    }
 5380
 5381    fn shared_screen_for_peer(
 5382        &self,
 5383        peer_id: PeerId,
 5384        pane: &Entity<Pane>,
 5385        window: &mut Window,
 5386        cx: &mut App,
 5387    ) -> Option<Entity<SharedScreen>> {
 5388        let call = self.active_call()?;
 5389        let room = call.read(cx).room()?.clone();
 5390        let participant = room.read(cx).remote_participant_for_peer_id(peer_id)?;
 5391        let track = participant.video_tracks.values().next()?.clone();
 5392        let user = participant.user.clone();
 5393
 5394        for item in pane.read(cx).items_of_type::<SharedScreen>() {
 5395            if item.read(cx).peer_id == peer_id {
 5396                return Some(item);
 5397            }
 5398        }
 5399
 5400        Some(cx.new(|cx| SharedScreen::new(track, peer_id, user.clone(), room.clone(), window, cx)))
 5401    }
 5402
 5403    pub fn on_window_activation_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5404        if window.is_window_active() {
 5405            self.update_active_view_for_followers(window, cx);
 5406
 5407            if let Some(database_id) = self.database_id {
 5408                cx.background_spawn(persistence::DB.update_timestamp(database_id))
 5409                    .detach();
 5410            }
 5411        } else {
 5412            for pane in &self.panes {
 5413                pane.update(cx, |pane, cx| {
 5414                    if let Some(item) = pane.active_item() {
 5415                        item.workspace_deactivated(window, cx);
 5416                    }
 5417                    for item in pane.items() {
 5418                        if matches!(
 5419                            item.workspace_settings(cx).autosave,
 5420                            AutosaveSetting::OnWindowChange | AutosaveSetting::OnFocusChange
 5421                        ) {
 5422                            Pane::autosave_item(item.as_ref(), self.project.clone(), window, cx)
 5423                                .detach_and_log_err(cx);
 5424                        }
 5425                    }
 5426                });
 5427            }
 5428        }
 5429    }
 5430
 5431    pub fn active_call(&self) -> Option<&Entity<ActiveCall>> {
 5432        self.active_call.as_ref().map(|(call, _)| call)
 5433    }
 5434
 5435    fn on_active_call_event(
 5436        &mut self,
 5437        _: &Entity<ActiveCall>,
 5438        event: &call::room::Event,
 5439        window: &mut Window,
 5440        cx: &mut Context<Self>,
 5441    ) {
 5442        match event {
 5443            call::room::Event::ParticipantLocationChanged { participant_id }
 5444            | call::room::Event::RemoteVideoTracksChanged { participant_id } => {
 5445                self.leader_updated(participant_id, window, cx);
 5446            }
 5447            _ => {}
 5448        }
 5449    }
 5450
 5451    pub fn database_id(&self) -> Option<WorkspaceId> {
 5452        self.database_id
 5453    }
 5454
 5455    pub fn session_id(&self) -> Option<String> {
 5456        self.session_id.clone()
 5457    }
 5458
 5459    pub fn root_paths(&self, cx: &App) -> Vec<Arc<Path>> {
 5460        let project = self.project().read(cx);
 5461        project
 5462            .visible_worktrees(cx)
 5463            .map(|worktree| worktree.read(cx).abs_path())
 5464            .collect::<Vec<_>>()
 5465    }
 5466
 5467    fn remove_panes(&mut self, member: Member, window: &mut Window, cx: &mut Context<Workspace>) {
 5468        match member {
 5469            Member::Axis(PaneAxis { members, .. }) => {
 5470                for child in members.iter() {
 5471                    self.remove_panes(child.clone(), window, cx)
 5472                }
 5473            }
 5474            Member::Pane(pane) => {
 5475                self.force_remove_pane(&pane, &None, window, cx);
 5476            }
 5477        }
 5478    }
 5479
 5480    fn remove_from_session(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 5481        self.session_id.take();
 5482        self.serialize_workspace_internal(window, cx)
 5483    }
 5484
 5485    fn force_remove_pane(
 5486        &mut self,
 5487        pane: &Entity<Pane>,
 5488        focus_on: &Option<Entity<Pane>>,
 5489        window: &mut Window,
 5490        cx: &mut Context<Workspace>,
 5491    ) {
 5492        self.panes.retain(|p| p != pane);
 5493        if let Some(focus_on) = focus_on {
 5494            focus_on.update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 5495        } else if self.active_pane() == pane {
 5496            self.panes
 5497                .last()
 5498                .unwrap()
 5499                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 5500        }
 5501        if self.last_active_center_pane == Some(pane.downgrade()) {
 5502            self.last_active_center_pane = None;
 5503        }
 5504        cx.notify();
 5505    }
 5506
 5507    fn serialize_workspace(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5508        if self._schedule_serialize_workspace.is_none() {
 5509            self._schedule_serialize_workspace =
 5510                Some(cx.spawn_in(window, async move |this, cx| {
 5511                    cx.background_executor()
 5512                        .timer(SERIALIZATION_THROTTLE_TIME)
 5513                        .await;
 5514                    this.update_in(cx, |this, window, cx| {
 5515                        this.serialize_workspace_internal(window, cx).detach();
 5516                        this._schedule_serialize_workspace.take();
 5517                    })
 5518                    .log_err();
 5519                }));
 5520        }
 5521    }
 5522
 5523    fn serialize_workspace_internal(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 5524        let Some(database_id) = self.database_id() else {
 5525            return Task::ready(());
 5526        };
 5527
 5528        fn serialize_pane_handle(
 5529            pane_handle: &Entity<Pane>,
 5530            window: &mut Window,
 5531            cx: &mut App,
 5532        ) -> SerializedPane {
 5533            let (items, active, pinned_count) = {
 5534                let pane = pane_handle.read(cx);
 5535                let active_item_id = pane.active_item().map(|item| item.item_id());
 5536                (
 5537                    pane.items()
 5538                        .filter_map(|handle| {
 5539                            let handle = handle.to_serializable_item_handle(cx)?;
 5540
 5541                            Some(SerializedItem {
 5542                                kind: Arc::from(handle.serialized_item_kind()),
 5543                                item_id: handle.item_id().as_u64(),
 5544                                active: Some(handle.item_id()) == active_item_id,
 5545                                preview: pane.is_active_preview_item(handle.item_id()),
 5546                            })
 5547                        })
 5548                        .collect::<Vec<_>>(),
 5549                    pane.has_focus(window, cx),
 5550                    pane.pinned_count(),
 5551                )
 5552            };
 5553
 5554            SerializedPane::new(items, active, pinned_count)
 5555        }
 5556
 5557        fn build_serialized_pane_group(
 5558            pane_group: &Member,
 5559            window: &mut Window,
 5560            cx: &mut App,
 5561        ) -> SerializedPaneGroup {
 5562            match pane_group {
 5563                Member::Axis(PaneAxis {
 5564                    axis,
 5565                    members,
 5566                    flexes,
 5567                    bounding_boxes: _,
 5568                }) => SerializedPaneGroup::Group {
 5569                    axis: SerializedAxis(*axis),
 5570                    children: members
 5571                        .iter()
 5572                        .map(|member| build_serialized_pane_group(member, window, cx))
 5573                        .collect::<Vec<_>>(),
 5574                    flexes: Some(flexes.lock().clone()),
 5575                },
 5576                Member::Pane(pane_handle) => {
 5577                    SerializedPaneGroup::Pane(serialize_pane_handle(pane_handle, window, cx))
 5578                }
 5579            }
 5580        }
 5581
 5582        fn build_serialized_docks(
 5583            this: &Workspace,
 5584            window: &mut Window,
 5585            cx: &mut App,
 5586        ) -> DockStructure {
 5587            let left_dock = this.left_dock.read(cx);
 5588            let left_visible = left_dock.is_open();
 5589            let left_active_panel = left_dock
 5590                .active_panel()
 5591                .map(|panel| panel.persistent_name().to_string());
 5592            let left_dock_zoom = left_dock
 5593                .active_panel()
 5594                .map(|panel| panel.is_zoomed(window, cx))
 5595                .unwrap_or(false);
 5596
 5597            let right_dock = this.right_dock.read(cx);
 5598            let right_visible = right_dock.is_open();
 5599            let right_active_panel = right_dock
 5600                .active_panel()
 5601                .map(|panel| panel.persistent_name().to_string());
 5602            let right_dock_zoom = right_dock
 5603                .active_panel()
 5604                .map(|panel| panel.is_zoomed(window, cx))
 5605                .unwrap_or(false);
 5606
 5607            let bottom_dock = this.bottom_dock.read(cx);
 5608            let bottom_visible = bottom_dock.is_open();
 5609            let bottom_active_panel = bottom_dock
 5610                .active_panel()
 5611                .map(|panel| panel.persistent_name().to_string());
 5612            let bottom_dock_zoom = bottom_dock
 5613                .active_panel()
 5614                .map(|panel| panel.is_zoomed(window, cx))
 5615                .unwrap_or(false);
 5616
 5617            DockStructure {
 5618                left: DockData {
 5619                    visible: left_visible,
 5620                    active_panel: left_active_panel,
 5621                    zoom: left_dock_zoom,
 5622                },
 5623                right: DockData {
 5624                    visible: right_visible,
 5625                    active_panel: right_active_panel,
 5626                    zoom: right_dock_zoom,
 5627                },
 5628                bottom: DockData {
 5629                    visible: bottom_visible,
 5630                    active_panel: bottom_active_panel,
 5631                    zoom: bottom_dock_zoom,
 5632                },
 5633            }
 5634        }
 5635
 5636        match self.serialize_workspace_location(cx) {
 5637            WorkspaceLocation::Location(location, paths) => {
 5638                let breakpoints = self.project.update(cx, |project, cx| {
 5639                    project
 5640                        .breakpoint_store()
 5641                        .read(cx)
 5642                        .all_source_breakpoints(cx)
 5643                });
 5644                let user_toolchains = self
 5645                    .project
 5646                    .read(cx)
 5647                    .user_toolchains(cx)
 5648                    .unwrap_or_default();
 5649
 5650                let center_group = build_serialized_pane_group(&self.center.root, window, cx);
 5651                let docks = build_serialized_docks(self, window, cx);
 5652                let window_bounds = Some(SerializedWindowBounds(window.window_bounds()));
 5653
 5654                let serialized_workspace = SerializedWorkspace {
 5655                    id: database_id,
 5656                    location,
 5657                    paths,
 5658                    center_group,
 5659                    window_bounds,
 5660                    display: Default::default(),
 5661                    docks,
 5662                    centered_layout: self.centered_layout,
 5663                    session_id: self.session_id.clone(),
 5664                    breakpoints,
 5665                    window_id: Some(window.window_handle().window_id().as_u64()),
 5666                    user_toolchains,
 5667                };
 5668
 5669                window.spawn(cx, async move |_| {
 5670                    persistence::DB.save_workspace(serialized_workspace).await;
 5671                })
 5672            }
 5673            WorkspaceLocation::DetachFromSession => {
 5674                let window_bounds = SerializedWindowBounds(window.window_bounds());
 5675                let display = window.display(cx).and_then(|d| d.uuid().ok());
 5676                window.spawn(cx, async move |_| {
 5677                    persistence::DB
 5678                        .set_window_open_status(
 5679                            database_id,
 5680                            window_bounds,
 5681                            display.unwrap_or_default(),
 5682                        )
 5683                        .await
 5684                        .log_err();
 5685                    persistence::DB
 5686                        .set_session_id(database_id, None)
 5687                        .await
 5688                        .log_err();
 5689                })
 5690            }
 5691            WorkspaceLocation::None => Task::ready(()),
 5692        }
 5693    }
 5694
 5695    fn serialize_workspace_location(&self, cx: &App) -> WorkspaceLocation {
 5696        let paths = PathList::new(&self.root_paths(cx));
 5697        if let Some(connection) = self.project.read(cx).remote_connection_options(cx) {
 5698            WorkspaceLocation::Location(SerializedWorkspaceLocation::Remote(connection), paths)
 5699        } else if self.project.read(cx).is_local() {
 5700            if !paths.is_empty() {
 5701                WorkspaceLocation::Location(SerializedWorkspaceLocation::Local, paths)
 5702            } else {
 5703                WorkspaceLocation::DetachFromSession
 5704            }
 5705        } else {
 5706            WorkspaceLocation::None
 5707        }
 5708    }
 5709
 5710    fn update_history(&self, cx: &mut App) {
 5711        let Some(id) = self.database_id() else {
 5712            return;
 5713        };
 5714        if !self.project.read(cx).is_local() {
 5715            return;
 5716        }
 5717        if let Some(manager) = HistoryManager::global(cx) {
 5718            let paths = PathList::new(&self.root_paths(cx));
 5719            manager.update(cx, |this, cx| {
 5720                this.update_history(id, HistoryManagerEntry::new(id, &paths), cx);
 5721            });
 5722        }
 5723    }
 5724
 5725    async fn serialize_items(
 5726        this: &WeakEntity<Self>,
 5727        items_rx: UnboundedReceiver<Box<dyn SerializableItemHandle>>,
 5728        cx: &mut AsyncWindowContext,
 5729    ) -> Result<()> {
 5730        const CHUNK_SIZE: usize = 200;
 5731
 5732        let mut serializable_items = items_rx.ready_chunks(CHUNK_SIZE);
 5733
 5734        while let Some(items_received) = serializable_items.next().await {
 5735            let unique_items =
 5736                items_received
 5737                    .into_iter()
 5738                    .fold(HashMap::default(), |mut acc, item| {
 5739                        acc.entry(item.item_id()).or_insert(item);
 5740                        acc
 5741                    });
 5742
 5743            // We use into_iter() here so that the references to the items are moved into
 5744            // the tasks and not kept alive while we're sleeping.
 5745            for (_, item) in unique_items.into_iter() {
 5746                if let Ok(Some(task)) = this.update_in(cx, |workspace, window, cx| {
 5747                    item.serialize(workspace, false, window, cx)
 5748                }) {
 5749                    cx.background_spawn(async move { task.await.log_err() })
 5750                        .detach();
 5751                }
 5752            }
 5753
 5754            cx.background_executor()
 5755                .timer(SERIALIZATION_THROTTLE_TIME)
 5756                .await;
 5757        }
 5758
 5759        Ok(())
 5760    }
 5761
 5762    pub(crate) fn enqueue_item_serialization(
 5763        &mut self,
 5764        item: Box<dyn SerializableItemHandle>,
 5765    ) -> Result<()> {
 5766        self.serializable_items_tx
 5767            .unbounded_send(item)
 5768            .map_err(|err| anyhow!("failed to send serializable item over channel: {err}"))
 5769    }
 5770
 5771    pub(crate) fn load_workspace(
 5772        serialized_workspace: SerializedWorkspace,
 5773        paths_to_open: Vec<Option<ProjectPath>>,
 5774        window: &mut Window,
 5775        cx: &mut Context<Workspace>,
 5776    ) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 5777        cx.spawn_in(window, async move |workspace, cx| {
 5778            let project = workspace.read_with(cx, |workspace, _| workspace.project().clone())?;
 5779
 5780            let mut center_group = None;
 5781            let mut center_items = None;
 5782
 5783            // Traverse the splits tree and add to things
 5784            if let Some((group, active_pane, items)) = serialized_workspace
 5785                .center_group
 5786                .deserialize(&project, serialized_workspace.id, workspace.clone(), cx)
 5787                .await
 5788            {
 5789                center_items = Some(items);
 5790                center_group = Some((group, active_pane))
 5791            }
 5792
 5793            let mut items_by_project_path = HashMap::default();
 5794            let mut item_ids_by_kind = HashMap::default();
 5795            let mut all_deserialized_items = Vec::default();
 5796            cx.update(|_, cx| {
 5797                for item in center_items.unwrap_or_default().into_iter().flatten() {
 5798                    if let Some(serializable_item_handle) = item.to_serializable_item_handle(cx) {
 5799                        item_ids_by_kind
 5800                            .entry(serializable_item_handle.serialized_item_kind())
 5801                            .or_insert(Vec::new())
 5802                            .push(item.item_id().as_u64() as ItemId);
 5803                    }
 5804
 5805                    if let Some(project_path) = item.project_path(cx) {
 5806                        items_by_project_path.insert(project_path, item.clone());
 5807                    }
 5808                    all_deserialized_items.push(item);
 5809                }
 5810            })?;
 5811
 5812            let opened_items = paths_to_open
 5813                .into_iter()
 5814                .map(|path_to_open| {
 5815                    path_to_open
 5816                        .and_then(|path_to_open| items_by_project_path.remove(&path_to_open))
 5817                })
 5818                .collect::<Vec<_>>();
 5819
 5820            // Remove old panes from workspace panes list
 5821            workspace.update_in(cx, |workspace, window, cx| {
 5822                if let Some((center_group, active_pane)) = center_group {
 5823                    workspace.remove_panes(workspace.center.root.clone(), window, cx);
 5824
 5825                    // Swap workspace center group
 5826                    workspace.center = PaneGroup::with_root(center_group);
 5827                    workspace.center.set_is_center(true);
 5828                    workspace.center.mark_positions(cx);
 5829
 5830                    if let Some(active_pane) = active_pane {
 5831                        workspace.set_active_pane(&active_pane, window, cx);
 5832                        cx.focus_self(window);
 5833                    } else {
 5834                        workspace.set_active_pane(&workspace.center.first_pane(), window, cx);
 5835                    }
 5836                }
 5837
 5838                let docks = serialized_workspace.docks;
 5839
 5840                for (dock, serialized_dock) in [
 5841                    (&mut workspace.right_dock, docks.right),
 5842                    (&mut workspace.left_dock, docks.left),
 5843                    (&mut workspace.bottom_dock, docks.bottom),
 5844                ]
 5845                .iter_mut()
 5846                {
 5847                    dock.update(cx, |dock, cx| {
 5848                        dock.serialized_dock = Some(serialized_dock.clone());
 5849                        dock.restore_state(window, cx);
 5850                    });
 5851                }
 5852
 5853                cx.notify();
 5854            })?;
 5855
 5856            let _ = project
 5857                .update(cx, |project, cx| {
 5858                    project
 5859                        .breakpoint_store()
 5860                        .update(cx, |breakpoint_store, cx| {
 5861                            breakpoint_store
 5862                                .with_serialized_breakpoints(serialized_workspace.breakpoints, cx)
 5863                        })
 5864                })?
 5865                .await;
 5866
 5867            // Clean up all the items that have _not_ been loaded. Our ItemIds aren't stable. That means
 5868            // after loading the items, we might have different items and in order to avoid
 5869            // the database filling up, we delete items that haven't been loaded now.
 5870            //
 5871            // The items that have been loaded, have been saved after they've been added to the workspace.
 5872            let clean_up_tasks = workspace.update_in(cx, |_, window, cx| {
 5873                item_ids_by_kind
 5874                    .into_iter()
 5875                    .map(|(item_kind, loaded_items)| {
 5876                        SerializableItemRegistry::cleanup(
 5877                            item_kind,
 5878                            serialized_workspace.id,
 5879                            loaded_items,
 5880                            window,
 5881                            cx,
 5882                        )
 5883                        .log_err()
 5884                    })
 5885                    .collect::<Vec<_>>()
 5886            })?;
 5887
 5888            futures::future::join_all(clean_up_tasks).await;
 5889
 5890            workspace
 5891                .update_in(cx, |workspace, window, cx| {
 5892                    // Serialize ourself to make sure our timestamps and any pane / item changes are replicated
 5893                    workspace.serialize_workspace_internal(window, cx).detach();
 5894
 5895                    // Ensure that we mark the window as edited if we did load dirty items
 5896                    workspace.update_window_edited(window, cx);
 5897                })
 5898                .ok();
 5899
 5900            Ok(opened_items)
 5901        })
 5902    }
 5903
 5904    fn actions(&self, div: Div, window: &mut Window, cx: &mut Context<Self>) -> Div {
 5905        self.add_workspace_actions_listeners(div, window, cx)
 5906            .on_action(cx.listener(
 5907                |_workspace, action_sequence: &settings::ActionSequence, window, cx| {
 5908                    for action in &action_sequence.0 {
 5909                        window.dispatch_action(action.boxed_clone(), cx);
 5910                    }
 5911                },
 5912            ))
 5913            .on_action(cx.listener(Self::close_inactive_items_and_panes))
 5914            .on_action(cx.listener(Self::close_all_items_and_panes))
 5915            .on_action(cx.listener(Self::save_all))
 5916            .on_action(cx.listener(Self::send_keystrokes))
 5917            .on_action(cx.listener(Self::add_folder_to_project))
 5918            .on_action(cx.listener(Self::follow_next_collaborator))
 5919            .on_action(cx.listener(Self::close_window))
 5920            .on_action(cx.listener(Self::activate_pane_at_index))
 5921            .on_action(cx.listener(Self::move_item_to_pane_at_index))
 5922            .on_action(cx.listener(Self::move_focused_panel_to_next_position))
 5923            .on_action(cx.listener(Self::toggle_edit_predictions_all_files))
 5924            .on_action(cx.listener(|workspace, _: &Unfollow, window, cx| {
 5925                let pane = workspace.active_pane().clone();
 5926                workspace.unfollow_in_pane(&pane, window, cx);
 5927            }))
 5928            .on_action(cx.listener(|workspace, action: &Save, window, cx| {
 5929                workspace
 5930                    .save_active_item(action.save_intent.unwrap_or(SaveIntent::Save), window, cx)
 5931                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5932            }))
 5933            .on_action(cx.listener(|workspace, _: &SaveWithoutFormat, window, cx| {
 5934                workspace
 5935                    .save_active_item(SaveIntent::SaveWithoutFormat, window, cx)
 5936                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5937            }))
 5938            .on_action(cx.listener(|workspace, _: &SaveAs, window, cx| {
 5939                workspace
 5940                    .save_active_item(SaveIntent::SaveAs, window, cx)
 5941                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5942            }))
 5943            .on_action(
 5944                cx.listener(|workspace, _: &ActivatePreviousPane, window, cx| {
 5945                    workspace.activate_previous_pane(window, cx)
 5946                }),
 5947            )
 5948            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 5949                workspace.activate_next_pane(window, cx)
 5950            }))
 5951            .on_action(
 5952                cx.listener(|workspace, _: &ActivateNextWindow, _window, cx| {
 5953                    workspace.activate_next_window(cx)
 5954                }),
 5955            )
 5956            .on_action(
 5957                cx.listener(|workspace, _: &ActivatePreviousWindow, _window, cx| {
 5958                    workspace.activate_previous_window(cx)
 5959                }),
 5960            )
 5961            .on_action(cx.listener(|workspace, _: &ActivatePaneLeft, window, cx| {
 5962                workspace.activate_pane_in_direction(SplitDirection::Left, window, cx)
 5963            }))
 5964            .on_action(cx.listener(|workspace, _: &ActivatePaneRight, window, cx| {
 5965                workspace.activate_pane_in_direction(SplitDirection::Right, window, cx)
 5966            }))
 5967            .on_action(cx.listener(|workspace, _: &ActivatePaneUp, window, cx| {
 5968                workspace.activate_pane_in_direction(SplitDirection::Up, window, cx)
 5969            }))
 5970            .on_action(cx.listener(|workspace, _: &ActivatePaneDown, window, cx| {
 5971                workspace.activate_pane_in_direction(SplitDirection::Down, window, cx)
 5972            }))
 5973            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 5974                workspace.activate_next_pane(window, cx)
 5975            }))
 5976            .on_action(cx.listener(
 5977                |workspace, action: &MoveItemToPaneInDirection, window, cx| {
 5978                    workspace.move_item_to_pane_in_direction(action, window, cx)
 5979                },
 5980            ))
 5981            .on_action(cx.listener(|workspace, _: &SwapPaneLeft, _, cx| {
 5982                workspace.swap_pane_in_direction(SplitDirection::Left, cx)
 5983            }))
 5984            .on_action(cx.listener(|workspace, _: &SwapPaneRight, _, cx| {
 5985                workspace.swap_pane_in_direction(SplitDirection::Right, cx)
 5986            }))
 5987            .on_action(cx.listener(|workspace, _: &SwapPaneUp, _, cx| {
 5988                workspace.swap_pane_in_direction(SplitDirection::Up, cx)
 5989            }))
 5990            .on_action(cx.listener(|workspace, _: &SwapPaneDown, _, cx| {
 5991                workspace.swap_pane_in_direction(SplitDirection::Down, cx)
 5992            }))
 5993            .on_action(cx.listener(|workspace, _: &SwapPaneAdjacent, window, cx| {
 5994                const DIRECTION_PRIORITY: [SplitDirection; 4] = [
 5995                    SplitDirection::Down,
 5996                    SplitDirection::Up,
 5997                    SplitDirection::Right,
 5998                    SplitDirection::Left,
 5999                ];
 6000                for dir in DIRECTION_PRIORITY {
 6001                    if workspace.find_pane_in_direction(dir, cx).is_some() {
 6002                        workspace.swap_pane_in_direction(dir, cx);
 6003                        workspace.activate_pane_in_direction(dir.opposite(), window, cx);
 6004                        break;
 6005                    }
 6006                }
 6007            }))
 6008            .on_action(cx.listener(|workspace, _: &MovePaneLeft, _, cx| {
 6009                workspace.move_pane_to_border(SplitDirection::Left, cx)
 6010            }))
 6011            .on_action(cx.listener(|workspace, _: &MovePaneRight, _, cx| {
 6012                workspace.move_pane_to_border(SplitDirection::Right, cx)
 6013            }))
 6014            .on_action(cx.listener(|workspace, _: &MovePaneUp, _, cx| {
 6015                workspace.move_pane_to_border(SplitDirection::Up, cx)
 6016            }))
 6017            .on_action(cx.listener(|workspace, _: &MovePaneDown, _, cx| {
 6018                workspace.move_pane_to_border(SplitDirection::Down, cx)
 6019            }))
 6020            .on_action(cx.listener(|this, _: &ToggleLeftDock, window, cx| {
 6021                this.toggle_dock(DockPosition::Left, window, cx);
 6022            }))
 6023            .on_action(cx.listener(
 6024                |workspace: &mut Workspace, _: &ToggleRightDock, window, cx| {
 6025                    workspace.toggle_dock(DockPosition::Right, window, cx);
 6026                },
 6027            ))
 6028            .on_action(cx.listener(
 6029                |workspace: &mut Workspace, _: &ToggleBottomDock, window, cx| {
 6030                    workspace.toggle_dock(DockPosition::Bottom, window, cx);
 6031                },
 6032            ))
 6033            .on_action(cx.listener(
 6034                |workspace: &mut Workspace, _: &CloseActiveDock, window, cx| {
 6035                    if !workspace.close_active_dock(window, cx) {
 6036                        cx.propagate();
 6037                    }
 6038                },
 6039            ))
 6040            .on_action(
 6041                cx.listener(|workspace: &mut Workspace, _: &CloseAllDocks, window, cx| {
 6042                    workspace.close_all_docks(window, cx);
 6043                }),
 6044            )
 6045            .on_action(cx.listener(Self::toggle_all_docks))
 6046            .on_action(cx.listener(
 6047                |workspace: &mut Workspace, _: &ClearAllNotifications, _, cx| {
 6048                    workspace.clear_all_notifications(cx);
 6049                },
 6050            ))
 6051            .on_action(cx.listener(
 6052                |workspace: &mut Workspace, _: &ClearNavigationHistory, window, cx| {
 6053                    workspace.clear_navigation_history(window, cx);
 6054                },
 6055            ))
 6056            .on_action(cx.listener(
 6057                |workspace: &mut Workspace, _: &SuppressNotification, _, cx| {
 6058                    if let Some((notification_id, _)) = workspace.notifications.pop() {
 6059                        workspace.suppress_notification(&notification_id, cx);
 6060                    }
 6061                },
 6062            ))
 6063            .on_action(cx.listener(
 6064                |workspace: &mut Workspace, _: &ToggleWorktreeSecurity, window, cx| {
 6065                    workspace.show_worktree_trust_security_modal(true, window, cx);
 6066                },
 6067            ))
 6068            .on_action(
 6069                cx.listener(|_: &mut Workspace, _: &ClearTrustedWorktrees, _, cx| {
 6070                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 6071                        trusted_worktrees.update(cx, |trusted_worktrees, _| {
 6072                            trusted_worktrees.clear_trusted_paths()
 6073                        });
 6074                        let clear_task = persistence::DB.clear_trusted_worktrees();
 6075                        cx.spawn(async move |_, cx| {
 6076                            if clear_task.await.log_err().is_some() {
 6077                                cx.update(|cx| reload(cx)).ok();
 6078                            }
 6079                        })
 6080                        .detach();
 6081                    }
 6082                }),
 6083            )
 6084            .on_action(cx.listener(
 6085                |workspace: &mut Workspace, _: &ReopenClosedItem, window, cx| {
 6086                    workspace.reopen_closed_item(window, cx).detach();
 6087                },
 6088            ))
 6089            .on_action(cx.listener(
 6090                |workspace: &mut Workspace, _: &ResetActiveDockSize, window, cx| {
 6091                    for dock in workspace.all_docks() {
 6092                        if dock.focus_handle(cx).contains_focused(window, cx) {
 6093                            let Some(panel) = dock.read(cx).active_panel() else {
 6094                                return;
 6095                            };
 6096
 6097                            // Set to `None`, then the size will fall back to the default.
 6098                            panel.clone().set_size(None, window, cx);
 6099
 6100                            return;
 6101                        }
 6102                    }
 6103                },
 6104            ))
 6105            .on_action(cx.listener(
 6106                |workspace: &mut Workspace, _: &ResetOpenDocksSize, window, cx| {
 6107                    for dock in workspace.all_docks() {
 6108                        if let Some(panel) = dock.read(cx).visible_panel() {
 6109                            // Set to `None`, then the size will fall back to the default.
 6110                            panel.clone().set_size(None, window, cx);
 6111                        }
 6112                    }
 6113                },
 6114            ))
 6115            .on_action(cx.listener(
 6116                |workspace: &mut Workspace, act: &IncreaseActiveDockSize, window, cx| {
 6117                    adjust_active_dock_size_by_px(
 6118                        px_with_ui_font_fallback(act.px, cx),
 6119                        workspace,
 6120                        window,
 6121                        cx,
 6122                    );
 6123                },
 6124            ))
 6125            .on_action(cx.listener(
 6126                |workspace: &mut Workspace, act: &DecreaseActiveDockSize, window, cx| {
 6127                    adjust_active_dock_size_by_px(
 6128                        px_with_ui_font_fallback(act.px, cx) * -1.,
 6129                        workspace,
 6130                        window,
 6131                        cx,
 6132                    );
 6133                },
 6134            ))
 6135            .on_action(cx.listener(
 6136                |workspace: &mut Workspace, act: &IncreaseOpenDocksSize, window, cx| {
 6137                    adjust_open_docks_size_by_px(
 6138                        px_with_ui_font_fallback(act.px, cx),
 6139                        workspace,
 6140                        window,
 6141                        cx,
 6142                    );
 6143                },
 6144            ))
 6145            .on_action(cx.listener(
 6146                |workspace: &mut Workspace, act: &DecreaseOpenDocksSize, window, cx| {
 6147                    adjust_open_docks_size_by_px(
 6148                        px_with_ui_font_fallback(act.px, cx) * -1.,
 6149                        workspace,
 6150                        window,
 6151                        cx,
 6152                    );
 6153                },
 6154            ))
 6155            .on_action(cx.listener(Workspace::toggle_centered_layout))
 6156            .on_action(cx.listener(
 6157                |workspace: &mut Workspace, _action: &pane::ActivateNextItem, window, cx| {
 6158                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6159                        let dock = active_dock.read(cx);
 6160                        if let Some(active_panel) = dock.active_panel() {
 6161                            if active_panel.pane(cx).is_none() {
 6162                                let mut recent_pane: Option<Entity<Pane>> = None;
 6163                                let mut recent_timestamp = 0;
 6164                                for pane_handle in workspace.panes() {
 6165                                    let pane = pane_handle.read(cx);
 6166                                    for entry in pane.activation_history() {
 6167                                        if entry.timestamp > recent_timestamp {
 6168                                            recent_timestamp = entry.timestamp;
 6169                                            recent_pane = Some(pane_handle.clone());
 6170                                        }
 6171                                    }
 6172                                }
 6173
 6174                                if let Some(pane) = recent_pane {
 6175                                    pane.update(cx, |pane, cx| {
 6176                                        let current_index = pane.active_item_index();
 6177                                        let items_len = pane.items_len();
 6178                                        if items_len > 0 {
 6179                                            let next_index = if current_index + 1 < items_len {
 6180                                                current_index + 1
 6181                                            } else {
 6182                                                0
 6183                                            };
 6184                                            pane.activate_item(
 6185                                                next_index, false, false, window, cx,
 6186                                            );
 6187                                        }
 6188                                    });
 6189                                    return;
 6190                                }
 6191                            }
 6192                        }
 6193                    }
 6194                    cx.propagate();
 6195                },
 6196            ))
 6197            .on_action(cx.listener(
 6198                |workspace: &mut Workspace, _action: &pane::ActivatePreviousItem, window, cx| {
 6199                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6200                        let dock = active_dock.read(cx);
 6201                        if let Some(active_panel) = dock.active_panel() {
 6202                            if active_panel.pane(cx).is_none() {
 6203                                let mut recent_pane: Option<Entity<Pane>> = None;
 6204                                let mut recent_timestamp = 0;
 6205                                for pane_handle in workspace.panes() {
 6206                                    let pane = pane_handle.read(cx);
 6207                                    for entry in pane.activation_history() {
 6208                                        if entry.timestamp > recent_timestamp {
 6209                                            recent_timestamp = entry.timestamp;
 6210                                            recent_pane = Some(pane_handle.clone());
 6211                                        }
 6212                                    }
 6213                                }
 6214
 6215                                if let Some(pane) = recent_pane {
 6216                                    pane.update(cx, |pane, cx| {
 6217                                        let current_index = pane.active_item_index();
 6218                                        let items_len = pane.items_len();
 6219                                        if items_len > 0 {
 6220                                            let prev_index = if current_index > 0 {
 6221                                                current_index - 1
 6222                                            } else {
 6223                                                items_len.saturating_sub(1)
 6224                                            };
 6225                                            pane.activate_item(
 6226                                                prev_index, false, false, window, cx,
 6227                                            );
 6228                                        }
 6229                                    });
 6230                                    return;
 6231                                }
 6232                            }
 6233                        }
 6234                    }
 6235                    cx.propagate();
 6236                },
 6237            ))
 6238            .on_action(
 6239                cx.listener(|workspace, _: &ToggleReadOnlyFile, window, cx| {
 6240                    let pane = workspace.active_pane().clone();
 6241                    if let Some(item) = pane.read(cx).active_item() {
 6242                        item.toggle_read_only(window, cx);
 6243                    }
 6244                }),
 6245            )
 6246            .on_action(cx.listener(Workspace::cancel))
 6247    }
 6248
 6249    #[cfg(any(test, feature = "test-support"))]
 6250    pub fn set_random_database_id(&mut self) {
 6251        self.database_id = Some(WorkspaceId(Uuid::new_v4().as_u64_pair().0 as i64));
 6252    }
 6253
 6254    #[cfg(any(test, feature = "test-support"))]
 6255    pub fn test_new(project: Entity<Project>, window: &mut Window, cx: &mut Context<Self>) -> Self {
 6256        use node_runtime::NodeRuntime;
 6257        use session::Session;
 6258
 6259        let client = project.read(cx).client();
 6260        let user_store = project.read(cx).user_store();
 6261        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 6262        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 6263        window.activate_window();
 6264        let app_state = Arc::new(AppState {
 6265            languages: project.read(cx).languages().clone(),
 6266            workspace_store,
 6267            client,
 6268            user_store,
 6269            fs: project.read(cx).fs().clone(),
 6270            build_window_options: |_, _| Default::default(),
 6271            node_runtime: NodeRuntime::unavailable(),
 6272            session,
 6273        });
 6274        let workspace = Self::new(Default::default(), project, app_state, window, cx);
 6275        workspace
 6276            .active_pane
 6277            .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 6278        workspace
 6279    }
 6280
 6281    pub fn register_action<A: Action>(
 6282        &mut self,
 6283        callback: impl Fn(&mut Self, &A, &mut Window, &mut Context<Self>) + 'static,
 6284    ) -> &mut Self {
 6285        let callback = Arc::new(callback);
 6286
 6287        self.workspace_actions.push(Box::new(move |div, _, _, cx| {
 6288            let callback = callback.clone();
 6289            div.on_action(cx.listener(move |workspace, event, window, cx| {
 6290                (callback)(workspace, event, window, cx)
 6291            }))
 6292        }));
 6293        self
 6294    }
 6295    pub fn register_action_renderer(
 6296        &mut self,
 6297        callback: impl Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div + 'static,
 6298    ) -> &mut Self {
 6299        self.workspace_actions.push(Box::new(callback));
 6300        self
 6301    }
 6302
 6303    fn add_workspace_actions_listeners(
 6304        &self,
 6305        mut div: Div,
 6306        window: &mut Window,
 6307        cx: &mut Context<Self>,
 6308    ) -> Div {
 6309        for action in self.workspace_actions.iter() {
 6310            div = (action)(div, self, window, cx)
 6311        }
 6312        div
 6313    }
 6314
 6315    pub fn has_active_modal(&self, _: &mut Window, cx: &mut App) -> bool {
 6316        self.modal_layer.read(cx).has_active_modal()
 6317    }
 6318
 6319    pub fn active_modal<V: ManagedView + 'static>(&self, cx: &App) -> Option<Entity<V>> {
 6320        self.modal_layer.read(cx).active_modal()
 6321    }
 6322
 6323    pub fn toggle_modal<V: ModalView, B>(&mut self, window: &mut Window, cx: &mut App, build: B)
 6324    where
 6325        B: FnOnce(&mut Window, &mut Context<V>) -> V,
 6326    {
 6327        self.modal_layer.update(cx, |modal_layer, cx| {
 6328            modal_layer.toggle_modal(window, cx, build)
 6329        })
 6330    }
 6331
 6332    pub fn hide_modal(&mut self, window: &mut Window, cx: &mut App) -> bool {
 6333        self.modal_layer
 6334            .update(cx, |modal_layer, cx| modal_layer.hide_modal(window, cx))
 6335    }
 6336
 6337    pub fn toggle_status_toast<V: ToastView>(&mut self, entity: Entity<V>, cx: &mut App) {
 6338        self.toast_layer
 6339            .update(cx, |toast_layer, cx| toast_layer.toggle_toast(cx, entity))
 6340    }
 6341
 6342    pub fn toggle_centered_layout(
 6343        &mut self,
 6344        _: &ToggleCenteredLayout,
 6345        _: &mut Window,
 6346        cx: &mut Context<Self>,
 6347    ) {
 6348        self.centered_layout = !self.centered_layout;
 6349        if let Some(database_id) = self.database_id() {
 6350            cx.background_spawn(DB.set_centered_layout(database_id, self.centered_layout))
 6351                .detach_and_log_err(cx);
 6352        }
 6353        cx.notify();
 6354    }
 6355
 6356    fn adjust_padding(padding: Option<f32>) -> f32 {
 6357        padding
 6358            .unwrap_or(CenteredPaddingSettings::default().0)
 6359            .clamp(
 6360                CenteredPaddingSettings::MIN_PADDING,
 6361                CenteredPaddingSettings::MAX_PADDING,
 6362            )
 6363    }
 6364
 6365    fn render_dock(
 6366        &self,
 6367        position: DockPosition,
 6368        dock: &Entity<Dock>,
 6369        window: &mut Window,
 6370        cx: &mut App,
 6371    ) -> Option<Div> {
 6372        if self.zoomed_position == Some(position) {
 6373            return None;
 6374        }
 6375
 6376        let leader_border = dock.read(cx).active_panel().and_then(|panel| {
 6377            let pane = panel.pane(cx)?;
 6378            let follower_states = &self.follower_states;
 6379            leader_border_for_pane(follower_states, &pane, window, cx)
 6380        });
 6381
 6382        Some(
 6383            div()
 6384                .flex()
 6385                .flex_none()
 6386                .overflow_hidden()
 6387                .child(dock.clone())
 6388                .children(leader_border),
 6389        )
 6390    }
 6391
 6392    pub fn for_window(window: &mut Window, _: &mut App) -> Option<Entity<Workspace>> {
 6393        window.root().flatten()
 6394    }
 6395
 6396    pub fn zoomed_item(&self) -> Option<&AnyWeakView> {
 6397        self.zoomed.as_ref()
 6398    }
 6399
 6400    pub fn activate_next_window(&mut self, cx: &mut Context<Self>) {
 6401        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 6402            return;
 6403        };
 6404        let windows = cx.windows();
 6405        let next_window =
 6406            SystemWindowTabController::get_next_tab_group_window(cx, current_window_id).or_else(
 6407                || {
 6408                    windows
 6409                        .iter()
 6410                        .cycle()
 6411                        .skip_while(|window| window.window_id() != current_window_id)
 6412                        .nth(1)
 6413                },
 6414            );
 6415
 6416        if let Some(window) = next_window {
 6417            window
 6418                .update(cx, |_, window, _| window.activate_window())
 6419                .ok();
 6420        }
 6421    }
 6422
 6423    pub fn activate_previous_window(&mut self, cx: &mut Context<Self>) {
 6424        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 6425            return;
 6426        };
 6427        let windows = cx.windows();
 6428        let prev_window =
 6429            SystemWindowTabController::get_prev_tab_group_window(cx, current_window_id).or_else(
 6430                || {
 6431                    windows
 6432                        .iter()
 6433                        .rev()
 6434                        .cycle()
 6435                        .skip_while(|window| window.window_id() != current_window_id)
 6436                        .nth(1)
 6437                },
 6438            );
 6439
 6440        if let Some(window) = prev_window {
 6441            window
 6442                .update(cx, |_, window, _| window.activate_window())
 6443                .ok();
 6444        }
 6445    }
 6446
 6447    pub fn cancel(&mut self, _: &menu::Cancel, window: &mut Window, cx: &mut Context<Self>) {
 6448        if cx.stop_active_drag(window) {
 6449        } else if let Some((notification_id, _)) = self.notifications.pop() {
 6450            dismiss_app_notification(&notification_id, cx);
 6451        } else {
 6452            cx.propagate();
 6453        }
 6454    }
 6455
 6456    fn adjust_dock_size_by_px(
 6457        &mut self,
 6458        panel_size: Pixels,
 6459        dock_pos: DockPosition,
 6460        px: Pixels,
 6461        window: &mut Window,
 6462        cx: &mut Context<Self>,
 6463    ) {
 6464        match dock_pos {
 6465            DockPosition::Left => self.resize_left_dock(panel_size + px, window, cx),
 6466            DockPosition::Right => self.resize_right_dock(panel_size + px, window, cx),
 6467            DockPosition::Bottom => self.resize_bottom_dock(panel_size + px, window, cx),
 6468        }
 6469    }
 6470
 6471    fn resize_left_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6472        let size = new_size.min(self.bounds.right() - RESIZE_HANDLE_SIZE);
 6473
 6474        self.left_dock.update(cx, |left_dock, cx| {
 6475            if WorkspaceSettings::get_global(cx)
 6476                .resize_all_panels_in_dock
 6477                .contains(&DockPosition::Left)
 6478            {
 6479                left_dock.resize_all_panels(Some(size), window, cx);
 6480            } else {
 6481                left_dock.resize_active_panel(Some(size), window, cx);
 6482            }
 6483        });
 6484        self.clamp_utility_pane_widths(window, cx);
 6485    }
 6486
 6487    fn resize_right_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6488        let mut size = new_size.max(self.bounds.left() - RESIZE_HANDLE_SIZE);
 6489        self.left_dock.read_with(cx, |left_dock, cx| {
 6490            let left_dock_size = left_dock
 6491                .active_panel_size(window, cx)
 6492                .unwrap_or(Pixels::ZERO);
 6493            if left_dock_size + size > self.bounds.right() {
 6494                size = self.bounds.right() - left_dock_size
 6495            }
 6496        });
 6497        self.right_dock.update(cx, |right_dock, cx| {
 6498            if WorkspaceSettings::get_global(cx)
 6499                .resize_all_panels_in_dock
 6500                .contains(&DockPosition::Right)
 6501            {
 6502                right_dock.resize_all_panels(Some(size), window, cx);
 6503            } else {
 6504                right_dock.resize_active_panel(Some(size), window, cx);
 6505            }
 6506        });
 6507        self.clamp_utility_pane_widths(window, cx);
 6508    }
 6509
 6510    fn resize_bottom_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6511        let size = new_size.min(self.bounds.bottom() - RESIZE_HANDLE_SIZE - self.bounds.top());
 6512        self.bottom_dock.update(cx, |bottom_dock, cx| {
 6513            if WorkspaceSettings::get_global(cx)
 6514                .resize_all_panels_in_dock
 6515                .contains(&DockPosition::Bottom)
 6516            {
 6517                bottom_dock.resize_all_panels(Some(size), window, cx);
 6518            } else {
 6519                bottom_dock.resize_active_panel(Some(size), window, cx);
 6520            }
 6521        });
 6522        self.clamp_utility_pane_widths(window, cx);
 6523    }
 6524
 6525    fn max_utility_pane_width(&self, window: &Window, cx: &App) -> Pixels {
 6526        let left_dock_width = self
 6527            .left_dock
 6528            .read(cx)
 6529            .active_panel_size(window, cx)
 6530            .unwrap_or(px(0.0));
 6531        let right_dock_width = self
 6532            .right_dock
 6533            .read(cx)
 6534            .active_panel_size(window, cx)
 6535            .unwrap_or(px(0.0));
 6536        let center_pane_width = self.bounds.size.width - left_dock_width - right_dock_width;
 6537        center_pane_width - px(10.0)
 6538    }
 6539
 6540    fn clamp_utility_pane_widths(&mut self, window: &mut Window, cx: &mut App) {
 6541        let max_width = self.max_utility_pane_width(window, cx);
 6542
 6543        // Clamp left slot utility pane if it exists
 6544        if let Some(handle) = self.utility_pane(UtilityPaneSlot::Left) {
 6545            let current_width = handle.width(cx);
 6546            if current_width > max_width {
 6547                handle.set_width(Some(max_width.max(UTILITY_PANE_MIN_WIDTH)), cx);
 6548            }
 6549        }
 6550
 6551        // Clamp right slot utility pane if it exists
 6552        if let Some(handle) = self.utility_pane(UtilityPaneSlot::Right) {
 6553            let current_width = handle.width(cx);
 6554            if current_width > max_width {
 6555                handle.set_width(Some(max_width.max(UTILITY_PANE_MIN_WIDTH)), cx);
 6556            }
 6557        }
 6558    }
 6559
 6560    fn toggle_edit_predictions_all_files(
 6561        &mut self,
 6562        _: &ToggleEditPrediction,
 6563        _window: &mut Window,
 6564        cx: &mut Context<Self>,
 6565    ) {
 6566        let fs = self.project().read(cx).fs().clone();
 6567        let show_edit_predictions = all_language_settings(None, cx).show_edit_predictions(None, cx);
 6568        update_settings_file(fs, cx, move |file, _| {
 6569            file.project.all_languages.defaults.show_edit_predictions = Some(!show_edit_predictions)
 6570        });
 6571    }
 6572
 6573    pub fn show_worktree_trust_security_modal(
 6574        &mut self,
 6575        toggle: bool,
 6576        window: &mut Window,
 6577        cx: &mut Context<Self>,
 6578    ) {
 6579        if let Some(security_modal) = self.active_modal::<SecurityModal>(cx) {
 6580            if toggle {
 6581                security_modal.update(cx, |security_modal, cx| {
 6582                    security_modal.dismiss(cx);
 6583                })
 6584            } else {
 6585                security_modal.update(cx, |security_modal, cx| {
 6586                    security_modal.refresh_restricted_paths(cx);
 6587                });
 6588            }
 6589        } else {
 6590            let has_restricted_worktrees = TrustedWorktrees::try_get_global(cx)
 6591                .map(|trusted_worktrees| {
 6592                    trusted_worktrees
 6593                        .read(cx)
 6594                        .has_restricted_worktrees(&self.project().read(cx).worktree_store(), cx)
 6595                })
 6596                .unwrap_or(false);
 6597            if has_restricted_worktrees {
 6598                let project = self.project().read(cx);
 6599                let remote_host = project
 6600                    .remote_connection_options(cx)
 6601                    .map(RemoteHostLocation::from);
 6602                let worktree_store = project.worktree_store().downgrade();
 6603                self.toggle_modal(window, cx, |_, cx| {
 6604                    SecurityModal::new(worktree_store, remote_host, cx)
 6605                });
 6606            }
 6607        }
 6608    }
 6609
 6610    fn update_worktree_data(&mut self, window: &mut Window, cx: &mut Context<'_, Self>) {
 6611        self.update_window_title(window, cx);
 6612        self.serialize_workspace(window, cx);
 6613        // This event could be triggered by `AddFolderToProject` or `RemoveFromProject`.
 6614        self.update_history(cx);
 6615    }
 6616}
 6617
 6618fn leader_border_for_pane(
 6619    follower_states: &HashMap<CollaboratorId, FollowerState>,
 6620    pane: &Entity<Pane>,
 6621    _: &Window,
 6622    cx: &App,
 6623) -> Option<Div> {
 6624    let (leader_id, _follower_state) = follower_states.iter().find_map(|(leader_id, state)| {
 6625        if state.pane() == pane {
 6626            Some((*leader_id, state))
 6627        } else {
 6628            None
 6629        }
 6630    })?;
 6631
 6632    let mut leader_color = match leader_id {
 6633        CollaboratorId::PeerId(leader_peer_id) => {
 6634            let room = ActiveCall::try_global(cx)?.read(cx).room()?.read(cx);
 6635            let leader = room.remote_participant_for_peer_id(leader_peer_id)?;
 6636
 6637            cx.theme()
 6638                .players()
 6639                .color_for_participant(leader.participant_index.0)
 6640                .cursor
 6641        }
 6642        CollaboratorId::Agent => cx.theme().players().agent().cursor,
 6643    };
 6644    leader_color.fade_out(0.3);
 6645    Some(
 6646        div()
 6647            .absolute()
 6648            .size_full()
 6649            .left_0()
 6650            .top_0()
 6651            .border_2()
 6652            .border_color(leader_color),
 6653    )
 6654}
 6655
 6656fn window_bounds_env_override() -> Option<Bounds<Pixels>> {
 6657    ZED_WINDOW_POSITION
 6658        .zip(*ZED_WINDOW_SIZE)
 6659        .map(|(position, size)| Bounds {
 6660            origin: position,
 6661            size,
 6662        })
 6663}
 6664
 6665fn open_items(
 6666    serialized_workspace: Option<SerializedWorkspace>,
 6667    mut project_paths_to_open: Vec<(PathBuf, Option<ProjectPath>)>,
 6668    window: &mut Window,
 6669    cx: &mut Context<Workspace>,
 6670) -> impl 'static + Future<Output = Result<Vec<Option<Result<Box<dyn ItemHandle>>>>>> + use<> {
 6671    let restored_items = serialized_workspace.map(|serialized_workspace| {
 6672        Workspace::load_workspace(
 6673            serialized_workspace,
 6674            project_paths_to_open
 6675                .iter()
 6676                .map(|(_, project_path)| project_path)
 6677                .cloned()
 6678                .collect(),
 6679            window,
 6680            cx,
 6681        )
 6682    });
 6683
 6684    cx.spawn_in(window, async move |workspace, cx| {
 6685        let mut opened_items = Vec::with_capacity(project_paths_to_open.len());
 6686
 6687        if let Some(restored_items) = restored_items {
 6688            let restored_items = restored_items.await?;
 6689
 6690            let restored_project_paths = restored_items
 6691                .iter()
 6692                .filter_map(|item| {
 6693                    cx.update(|_, cx| item.as_ref()?.project_path(cx))
 6694                        .ok()
 6695                        .flatten()
 6696                })
 6697                .collect::<HashSet<_>>();
 6698
 6699            for restored_item in restored_items {
 6700                opened_items.push(restored_item.map(Ok));
 6701            }
 6702
 6703            project_paths_to_open
 6704                .iter_mut()
 6705                .for_each(|(_, project_path)| {
 6706                    if let Some(project_path_to_open) = project_path
 6707                        && restored_project_paths.contains(project_path_to_open)
 6708                    {
 6709                        *project_path = None;
 6710                    }
 6711                });
 6712        } else {
 6713            for _ in 0..project_paths_to_open.len() {
 6714                opened_items.push(None);
 6715            }
 6716        }
 6717        assert!(opened_items.len() == project_paths_to_open.len());
 6718
 6719        let tasks =
 6720            project_paths_to_open
 6721                .into_iter()
 6722                .enumerate()
 6723                .map(|(ix, (abs_path, project_path))| {
 6724                    let workspace = workspace.clone();
 6725                    cx.spawn(async move |cx| {
 6726                        let file_project_path = project_path?;
 6727                        let abs_path_task = workspace.update(cx, |workspace, cx| {
 6728                            workspace.project().update(cx, |project, cx| {
 6729                                project.resolve_abs_path(abs_path.to_string_lossy().as_ref(), cx)
 6730                            })
 6731                        });
 6732
 6733                        // We only want to open file paths here. If one of the items
 6734                        // here is a directory, it was already opened further above
 6735                        // with a `find_or_create_worktree`.
 6736                        if let Ok(task) = abs_path_task
 6737                            && task.await.is_none_or(|p| p.is_file())
 6738                        {
 6739                            return Some((
 6740                                ix,
 6741                                workspace
 6742                                    .update_in(cx, |workspace, window, cx| {
 6743                                        workspace.open_path(
 6744                                            file_project_path,
 6745                                            None,
 6746                                            true,
 6747                                            window,
 6748                                            cx,
 6749                                        )
 6750                                    })
 6751                                    .log_err()?
 6752                                    .await,
 6753                            ));
 6754                        }
 6755                        None
 6756                    })
 6757                });
 6758
 6759        let tasks = tasks.collect::<Vec<_>>();
 6760
 6761        let tasks = futures::future::join_all(tasks);
 6762        for (ix, path_open_result) in tasks.await.into_iter().flatten() {
 6763            opened_items[ix] = Some(path_open_result);
 6764        }
 6765
 6766        Ok(opened_items)
 6767    })
 6768}
 6769
 6770enum ActivateInDirectionTarget {
 6771    Pane(Entity<Pane>),
 6772    Dock(Entity<Dock>),
 6773}
 6774
 6775fn notify_if_database_failed(workspace: WindowHandle<Workspace>, cx: &mut AsyncApp) {
 6776    workspace
 6777        .update(cx, |workspace, _, cx| {
 6778            if (*db::ALL_FILE_DB_FAILED).load(std::sync::atomic::Ordering::Acquire) {
 6779                struct DatabaseFailedNotification;
 6780
 6781                workspace.show_notification(
 6782                    NotificationId::unique::<DatabaseFailedNotification>(),
 6783                    cx,
 6784                    |cx| {
 6785                        cx.new(|cx| {
 6786                            MessageNotification::new("Failed to load the database file.", cx)
 6787                                .primary_message("File an Issue")
 6788                                .primary_icon(IconName::Plus)
 6789                                .primary_on_click(|window, cx| {
 6790                                    window.dispatch_action(Box::new(FileBugReport), cx)
 6791                                })
 6792                        })
 6793                    },
 6794                );
 6795            }
 6796        })
 6797        .log_err();
 6798}
 6799
 6800fn px_with_ui_font_fallback(val: u32, cx: &Context<Workspace>) -> Pixels {
 6801    if val == 0 {
 6802        ThemeSettings::get_global(cx).ui_font_size(cx)
 6803    } else {
 6804        px(val as f32)
 6805    }
 6806}
 6807
 6808fn adjust_active_dock_size_by_px(
 6809    px: Pixels,
 6810    workspace: &mut Workspace,
 6811    window: &mut Window,
 6812    cx: &mut Context<Workspace>,
 6813) {
 6814    let Some(active_dock) = workspace
 6815        .all_docks()
 6816        .into_iter()
 6817        .find(|dock| dock.focus_handle(cx).contains_focused(window, cx))
 6818    else {
 6819        return;
 6820    };
 6821    let dock = active_dock.read(cx);
 6822    let Some(panel_size) = dock.active_panel_size(window, cx) else {
 6823        return;
 6824    };
 6825    let dock_pos = dock.position();
 6826    workspace.adjust_dock_size_by_px(panel_size, dock_pos, px, window, cx);
 6827}
 6828
 6829fn adjust_open_docks_size_by_px(
 6830    px: Pixels,
 6831    workspace: &mut Workspace,
 6832    window: &mut Window,
 6833    cx: &mut Context<Workspace>,
 6834) {
 6835    let docks = workspace
 6836        .all_docks()
 6837        .into_iter()
 6838        .filter_map(|dock| {
 6839            if dock.read(cx).is_open() {
 6840                let dock = dock.read(cx);
 6841                let panel_size = dock.active_panel_size(window, cx)?;
 6842                let dock_pos = dock.position();
 6843                Some((panel_size, dock_pos, px))
 6844            } else {
 6845                None
 6846            }
 6847        })
 6848        .collect::<Vec<_>>();
 6849
 6850    docks
 6851        .into_iter()
 6852        .for_each(|(panel_size, dock_pos, offset)| {
 6853            workspace.adjust_dock_size_by_px(panel_size, dock_pos, offset, window, cx);
 6854        });
 6855}
 6856
 6857impl Focusable for Workspace {
 6858    fn focus_handle(&self, cx: &App) -> FocusHandle {
 6859        self.active_pane.focus_handle(cx)
 6860    }
 6861}
 6862
 6863#[derive(Clone)]
 6864struct DraggedDock(DockPosition);
 6865
 6866impl Render for DraggedDock {
 6867    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
 6868        gpui::Empty
 6869    }
 6870}
 6871
 6872impl Render for Workspace {
 6873    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
 6874        static FIRST_PAINT: AtomicBool = AtomicBool::new(true);
 6875        if FIRST_PAINT.swap(false, std::sync::atomic::Ordering::Relaxed) {
 6876            log::info!("Rendered first frame");
 6877        }
 6878        let mut context = KeyContext::new_with_defaults();
 6879        context.add("Workspace");
 6880        context.set("keyboard_layout", cx.keyboard_layout().name().to_string());
 6881        if let Some(status) = self
 6882            .debugger_provider
 6883            .as_ref()
 6884            .and_then(|provider| provider.active_thread_state(cx))
 6885        {
 6886            match status {
 6887                ThreadStatus::Running | ThreadStatus::Stepping => {
 6888                    context.add("debugger_running");
 6889                }
 6890                ThreadStatus::Stopped => context.add("debugger_stopped"),
 6891                ThreadStatus::Exited | ThreadStatus::Ended => {}
 6892            }
 6893        }
 6894
 6895        if self.left_dock.read(cx).is_open() {
 6896            if let Some(active_panel) = self.left_dock.read(cx).active_panel() {
 6897                context.set("left_dock", active_panel.panel_key());
 6898            }
 6899        }
 6900
 6901        if self.right_dock.read(cx).is_open() {
 6902            if let Some(active_panel) = self.right_dock.read(cx).active_panel() {
 6903                context.set("right_dock", active_panel.panel_key());
 6904            }
 6905        }
 6906
 6907        if self.bottom_dock.read(cx).is_open() {
 6908            if let Some(active_panel) = self.bottom_dock.read(cx).active_panel() {
 6909                context.set("bottom_dock", active_panel.panel_key());
 6910            }
 6911        }
 6912
 6913        let centered_layout = self.centered_layout
 6914            && self.center.panes().len() == 1
 6915            && self.active_item(cx).is_some();
 6916        let render_padding = |size| {
 6917            (size > 0.0).then(|| {
 6918                div()
 6919                    .h_full()
 6920                    .w(relative(size))
 6921                    .bg(cx.theme().colors().editor_background)
 6922                    .border_color(cx.theme().colors().pane_group_border)
 6923            })
 6924        };
 6925        let paddings = if centered_layout {
 6926            let settings = WorkspaceSettings::get_global(cx).centered_layout;
 6927            (
 6928                render_padding(Self::adjust_padding(
 6929                    settings.left_padding.map(|padding| padding.0),
 6930                )),
 6931                render_padding(Self::adjust_padding(
 6932                    settings.right_padding.map(|padding| padding.0),
 6933                )),
 6934            )
 6935        } else {
 6936            (None, None)
 6937        };
 6938        let ui_font = theme::setup_ui_font(window, cx);
 6939
 6940        let theme = cx.theme().clone();
 6941        let colors = theme.colors();
 6942        let notification_entities = self
 6943            .notifications
 6944            .iter()
 6945            .map(|(_, notification)| notification.entity_id())
 6946            .collect::<Vec<_>>();
 6947        let bottom_dock_layout = WorkspaceSettings::get_global(cx).bottom_dock_layout;
 6948
 6949        client_side_decorations(
 6950            self.actions(div(), window, cx)
 6951                .key_context(context)
 6952                .relative()
 6953                .size_full()
 6954                .flex()
 6955                .flex_col()
 6956                .font(ui_font)
 6957                .gap_0()
 6958                .justify_start()
 6959                .items_start()
 6960                .text_color(colors.text)
 6961                .overflow_hidden()
 6962                .children(self.titlebar_item.clone())
 6963                .on_modifiers_changed(move |_, _, cx| {
 6964                    for &id in &notification_entities {
 6965                        cx.notify(id);
 6966                    }
 6967                })
 6968                .child(
 6969                    div()
 6970                        .size_full()
 6971                        .relative()
 6972                        .flex_1()
 6973                        .flex()
 6974                        .flex_col()
 6975                        .child(
 6976                            div()
 6977                                .id("workspace")
 6978                                .bg(colors.background)
 6979                                .relative()
 6980                                .flex_1()
 6981                                .w_full()
 6982                                .flex()
 6983                                .flex_col()
 6984                                .overflow_hidden()
 6985                                .border_t_1()
 6986                                .border_b_1()
 6987                                .border_color(colors.border)
 6988                                .child({
 6989                                    let this = cx.entity();
 6990                                    canvas(
 6991                                        move |bounds, window, cx| {
 6992                                            this.update(cx, |this, cx| {
 6993                                                let bounds_changed = this.bounds != bounds;
 6994                                                this.bounds = bounds;
 6995
 6996                                                if bounds_changed {
 6997                                                    this.left_dock.update(cx, |dock, cx| {
 6998                                                        dock.clamp_panel_size(
 6999                                                            bounds.size.width,
 7000                                                            window,
 7001                                                            cx,
 7002                                                        )
 7003                                                    });
 7004
 7005                                                    this.right_dock.update(cx, |dock, cx| {
 7006                                                        dock.clamp_panel_size(
 7007                                                            bounds.size.width,
 7008                                                            window,
 7009                                                            cx,
 7010                                                        )
 7011                                                    });
 7012
 7013                                                    this.bottom_dock.update(cx, |dock, cx| {
 7014                                                        dock.clamp_panel_size(
 7015                                                            bounds.size.height,
 7016                                                            window,
 7017                                                            cx,
 7018                                                        )
 7019                                                    });
 7020                                                }
 7021                                            })
 7022                                        },
 7023                                        |_, _, _, _| {},
 7024                                    )
 7025                                    .absolute()
 7026                                    .size_full()
 7027                                })
 7028                                .when(self.zoomed.is_none(), |this| {
 7029                                    this.on_drag_move(cx.listener(
 7030                                        move |workspace,
 7031                                              e: &DragMoveEvent<DraggedDock>,
 7032                                              window,
 7033                                              cx| {
 7034                                            if workspace.previous_dock_drag_coordinates
 7035                                                != Some(e.event.position)
 7036                                            {
 7037                                                workspace.previous_dock_drag_coordinates =
 7038                                                    Some(e.event.position);
 7039                                                match e.drag(cx).0 {
 7040                                                    DockPosition::Left => {
 7041                                                        workspace.resize_left_dock(
 7042                                                            e.event.position.x
 7043                                                                - workspace.bounds.left(),
 7044                                                            window,
 7045                                                            cx,
 7046                                                        );
 7047                                                    }
 7048                                                    DockPosition::Right => {
 7049                                                        workspace.resize_right_dock(
 7050                                                            workspace.bounds.right()
 7051                                                                - e.event.position.x,
 7052                                                            window,
 7053                                                            cx,
 7054                                                        );
 7055                                                    }
 7056                                                    DockPosition::Bottom => {
 7057                                                        workspace.resize_bottom_dock(
 7058                                                            workspace.bounds.bottom()
 7059                                                                - e.event.position.y,
 7060                                                            window,
 7061                                                            cx,
 7062                                                        );
 7063                                                    }
 7064                                                };
 7065                                                workspace.serialize_workspace(window, cx);
 7066                                            }
 7067                                        },
 7068                                    ))
 7069                                    .on_drag_move(cx.listener(
 7070                                        move |workspace,
 7071                                              e: &DragMoveEvent<DraggedUtilityPane>,
 7072                                              window,
 7073                                              cx| {
 7074                                            let slot = e.drag(cx).0;
 7075                                            match slot {
 7076                                                UtilityPaneSlot::Left => {
 7077                                                    let left_dock_width = workspace.left_dock.read(cx)
 7078                                                        .active_panel_size(window, cx)
 7079                                                        .unwrap_or(gpui::px(0.0));
 7080                                                    let new_width = e.event.position.x
 7081                                                        - workspace.bounds.left()
 7082                                                        - left_dock_width;
 7083                                                    workspace.resize_utility_pane(slot, new_width, window, cx);
 7084                                                }
 7085                                                UtilityPaneSlot::Right => {
 7086                                                    let right_dock_width = workspace.right_dock.read(cx)
 7087                                                        .active_panel_size(window, cx)
 7088                                                        .unwrap_or(gpui::px(0.0));
 7089                                                    let new_width = workspace.bounds.right()
 7090                                                        - e.event.position.x
 7091                                                        - right_dock_width;
 7092                                                    workspace.resize_utility_pane(slot, new_width, window, cx);
 7093                                                }
 7094                                            }
 7095                                        },
 7096                                    ))
 7097                                })
 7098                                .child({
 7099                                    match bottom_dock_layout {
 7100                                        BottomDockLayout::Full => div()
 7101                                            .flex()
 7102                                            .flex_col()
 7103                                            .h_full()
 7104                                            .child(
 7105                                                div()
 7106                                                    .flex()
 7107                                                    .flex_row()
 7108                                                    .flex_1()
 7109                                                    .overflow_hidden()
 7110                                                    .children(self.render_dock(
 7111                                                        DockPosition::Left,
 7112                                                        &self.left_dock,
 7113                                                        window,
 7114                                                        cx,
 7115                                                    ))
 7116                                                    .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7117                                                        this.when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7118                                                            this.when(pane.expanded(cx), |this| {
 7119                                                                this.child(
 7120                                                                    UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7121                                                                )
 7122                                                            })
 7123                                                        })
 7124                                                    })
 7125                                                    .child(
 7126                                                        div()
 7127                                                            .flex()
 7128                                                            .flex_col()
 7129                                                            .flex_1()
 7130                                                            .overflow_hidden()
 7131                                                            .child(
 7132                                                                h_flex()
 7133                                                                    .flex_1()
 7134                                                                    .when_some(
 7135                                                                        paddings.0,
 7136                                                                        |this, p| {
 7137                                                                            this.child(
 7138                                                                                p.border_r_1(),
 7139                                                                            )
 7140                                                                        },
 7141                                                                    )
 7142                                                                    .child(self.center.render(
 7143                                                                        self.zoomed.as_ref(),
 7144                                                                        &PaneRenderContext {
 7145                                                                            follower_states:
 7146                                                                                &self.follower_states,
 7147                                                                            active_call: self.active_call(),
 7148                                                                            active_pane: &self.active_pane,
 7149                                                                            app_state: &self.app_state,
 7150                                                                            project: &self.project,
 7151                                                                            workspace: &self.weak_self,
 7152                                                                        },
 7153                                                                        window,
 7154                                                                        cx,
 7155                                                                    ))
 7156                                                                    .when_some(
 7157                                                                        paddings.1,
 7158                                                                        |this, p| {
 7159                                                                            this.child(
 7160                                                                                p.border_l_1(),
 7161                                                                            )
 7162                                                                        },
 7163                                                                    ),
 7164                                                            ),
 7165                                                    )
 7166                                                    .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7167                                                        this.when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7168                                                            this.when(pane.expanded(cx), |this| {
 7169                                                                this.child(
 7170                                                                    UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7171                                                                )
 7172                                                            })
 7173                                                        })
 7174                                                    })
 7175                                                    .children(self.render_dock(
 7176                                                        DockPosition::Right,
 7177                                                        &self.right_dock,
 7178                                                        window,
 7179                                                        cx,
 7180                                                    )),
 7181                                            )
 7182                                            .child(div().w_full().children(self.render_dock(
 7183                                                DockPosition::Bottom,
 7184                                                &self.bottom_dock,
 7185                                                window,
 7186                                                cx
 7187                                            ))),
 7188
 7189                                        BottomDockLayout::LeftAligned => div()
 7190                                            .flex()
 7191                                            .flex_row()
 7192                                            .h_full()
 7193                                            .child(
 7194                                                div()
 7195                                                    .flex()
 7196                                                    .flex_col()
 7197                                                    .flex_1()
 7198                                                    .h_full()
 7199                                                    .child(
 7200                                                        div()
 7201                                                            .flex()
 7202                                                            .flex_row()
 7203                                                            .flex_1()
 7204                                                            .children(self.render_dock(DockPosition::Left, &self.left_dock, window, cx))
 7205                                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7206                                                                this.when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7207                                                                    this.when(pane.expanded(cx), |this| {
 7208                                                                        this.child(
 7209                                                                            UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7210                                                                        )
 7211                                                                    })
 7212                                                                })
 7213                                                            })
 7214                                                            .child(
 7215                                                                div()
 7216                                                                    .flex()
 7217                                                                    .flex_col()
 7218                                                                    .flex_1()
 7219                                                                    .overflow_hidden()
 7220                                                                    .child(
 7221                                                                        h_flex()
 7222                                                                            .flex_1()
 7223                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 7224                                                                            .child(self.center.render(
 7225                                                                                self.zoomed.as_ref(),
 7226                                                                                &PaneRenderContext {
 7227                                                                                    follower_states:
 7228                                                                                        &self.follower_states,
 7229                                                                                    active_call: self.active_call(),
 7230                                                                                    active_pane: &self.active_pane,
 7231                                                                                    app_state: &self.app_state,
 7232                                                                                    project: &self.project,
 7233                                                                                    workspace: &self.weak_self,
 7234                                                                                },
 7235                                                                                window,
 7236                                                                                cx,
 7237                                                                            ))
 7238                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 7239                                                                    )
 7240                                                            )
 7241                                                            .when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7242                                                                this.when(pane.expanded(cx), |this| {
 7243                                                                    this.child(
 7244                                                                        UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7245                                                                    )
 7246                                                                })
 7247                                                            })
 7248                                                    )
 7249                                                    .child(
 7250                                                        div()
 7251                                                            .w_full()
 7252                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 7253                                                    ),
 7254                                            )
 7255                                            .children(self.render_dock(
 7256                                                DockPosition::Right,
 7257                                                &self.right_dock,
 7258                                                window,
 7259                                                cx,
 7260                                            )),
 7261
 7262                                        BottomDockLayout::RightAligned => div()
 7263                                            .flex()
 7264                                            .flex_row()
 7265                                            .h_full()
 7266                                            .children(self.render_dock(
 7267                                                DockPosition::Left,
 7268                                                &self.left_dock,
 7269                                                window,
 7270                                                cx,
 7271                                            ))
 7272                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7273                                                this.when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7274                                                    this.when(pane.expanded(cx), |this| {
 7275                                                        this.child(
 7276                                                            UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7277                                                        )
 7278                                                    })
 7279                                                })
 7280                                            })
 7281                                            .child(
 7282                                                div()
 7283                                                    .flex()
 7284                                                    .flex_col()
 7285                                                    .flex_1()
 7286                                                    .h_full()
 7287                                                    .child(
 7288                                                        div()
 7289                                                            .flex()
 7290                                                            .flex_row()
 7291                                                            .flex_1()
 7292                                                            .child(
 7293                                                                div()
 7294                                                                    .flex()
 7295                                                                    .flex_col()
 7296                                                                    .flex_1()
 7297                                                                    .overflow_hidden()
 7298                                                                    .child(
 7299                                                                        h_flex()
 7300                                                                            .flex_1()
 7301                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 7302                                                                            .child(self.center.render(
 7303                                                                                self.zoomed.as_ref(),
 7304                                                                                &PaneRenderContext {
 7305                                                                                    follower_states:
 7306                                                                                        &self.follower_states,
 7307                                                                                    active_call: self.active_call(),
 7308                                                                                    active_pane: &self.active_pane,
 7309                                                                                    app_state: &self.app_state,
 7310                                                                                    project: &self.project,
 7311                                                                                    workspace: &self.weak_self,
 7312                                                                                },
 7313                                                                                window,
 7314                                                                                cx,
 7315                                                                            ))
 7316                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 7317                                                                    )
 7318                                                            )
 7319                                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7320                                                                this.when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7321                                                                    this.when(pane.expanded(cx), |this| {
 7322                                                                        this.child(
 7323                                                                            UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7324                                                                        )
 7325                                                                    })
 7326                                                                })
 7327                                                            })
 7328                                                            .children(self.render_dock(DockPosition::Right, &self.right_dock, window, cx))
 7329                                                    )
 7330                                                    .child(
 7331                                                        div()
 7332                                                            .w_full()
 7333                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 7334                                                    ),
 7335                                            ),
 7336
 7337                                        BottomDockLayout::Contained => div()
 7338                                            .flex()
 7339                                            .flex_row()
 7340                                            .h_full()
 7341                                            .children(self.render_dock(
 7342                                                DockPosition::Left,
 7343                                                &self.left_dock,
 7344                                                window,
 7345                                                cx,
 7346                                            ))
 7347                                            .when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7348                                                this.when(pane.expanded(cx), |this| {
 7349                                                    this.child(
 7350                                                        UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7351                                                    )
 7352                                                })
 7353                                            })
 7354                                            .child(
 7355                                                div()
 7356                                                    .flex()
 7357                                                    .flex_col()
 7358                                                    .flex_1()
 7359                                                    .overflow_hidden()
 7360                                                    .child(
 7361                                                        h_flex()
 7362                                                            .flex_1()
 7363                                                            .when_some(paddings.0, |this, p| {
 7364                                                                this.child(p.border_r_1())
 7365                                                            })
 7366                                                            .child(self.center.render(
 7367                                                                self.zoomed.as_ref(),
 7368                                                                &PaneRenderContext {
 7369                                                                    follower_states:
 7370                                                                        &self.follower_states,
 7371                                                                    active_call: self.active_call(),
 7372                                                                    active_pane: &self.active_pane,
 7373                                                                    app_state: &self.app_state,
 7374                                                                    project: &self.project,
 7375                                                                    workspace: &self.weak_self,
 7376                                                                },
 7377                                                                window,
 7378                                                                cx,
 7379                                                            ))
 7380                                                            .when_some(paddings.1, |this, p| {
 7381                                                                this.child(p.border_l_1())
 7382                                                            }),
 7383                                                    )
 7384                                                    .children(self.render_dock(
 7385                                                        DockPosition::Bottom,
 7386                                                        &self.bottom_dock,
 7387                                                        window,
 7388                                                        cx,
 7389                                                    )),
 7390                                            )
 7391                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7392                                                this.when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7393                                                    this.when(pane.expanded(cx), |this| {
 7394                                                        this.child(
 7395                                                            UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7396                                                        )
 7397                                                    })
 7398                                                })
 7399                                            })
 7400                                            .children(self.render_dock(
 7401                                                DockPosition::Right,
 7402                                                &self.right_dock,
 7403                                                window,
 7404                                                cx,
 7405                                            )),
 7406                                    }
 7407                                })
 7408                                .children(self.zoomed.as_ref().and_then(|view| {
 7409                                    let zoomed_view = view.upgrade()?;
 7410                                    let div = div()
 7411                                        .occlude()
 7412                                        .absolute()
 7413                                        .overflow_hidden()
 7414                                        .border_color(colors.border)
 7415                                        .bg(colors.background)
 7416                                        .child(zoomed_view)
 7417                                        .inset_0()
 7418                                        .shadow_lg();
 7419
 7420                                    if !WorkspaceSettings::get_global(cx).zoomed_padding {
 7421                                       return Some(div);
 7422                                    }
 7423
 7424                                    Some(match self.zoomed_position {
 7425                                        Some(DockPosition::Left) => div.right_2().border_r_1(),
 7426                                        Some(DockPosition::Right) => div.left_2().border_l_1(),
 7427                                        Some(DockPosition::Bottom) => div.top_2().border_t_1(),
 7428                                        None => {
 7429                                            div.top_2().bottom_2().left_2().right_2().border_1()
 7430                                        }
 7431                                    })
 7432                                }))
 7433                                .children(self.render_notifications(window, cx)),
 7434                        )
 7435                        .when(self.status_bar_visible(cx), |parent| {
 7436                            parent.child(self.status_bar.clone())
 7437                        })
 7438                        .child(self.modal_layer.clone())
 7439                        .child(self.toast_layer.clone()),
 7440                ),
 7441            window,
 7442            cx,
 7443        )
 7444    }
 7445}
 7446
 7447impl WorkspaceStore {
 7448    pub fn new(client: Arc<Client>, cx: &mut Context<Self>) -> Self {
 7449        Self {
 7450            workspaces: Default::default(),
 7451            _subscriptions: vec![
 7452                client.add_request_handler(cx.weak_entity(), Self::handle_follow),
 7453                client.add_message_handler(cx.weak_entity(), Self::handle_update_followers),
 7454            ],
 7455            client,
 7456        }
 7457    }
 7458
 7459    pub fn update_followers(
 7460        &self,
 7461        project_id: Option<u64>,
 7462        update: proto::update_followers::Variant,
 7463        cx: &App,
 7464    ) -> Option<()> {
 7465        let active_call = ActiveCall::try_global(cx)?;
 7466        let room_id = active_call.read(cx).room()?.read(cx).id();
 7467        self.client
 7468            .send(proto::UpdateFollowers {
 7469                room_id,
 7470                project_id,
 7471                variant: Some(update),
 7472            })
 7473            .log_err()
 7474    }
 7475
 7476    pub async fn handle_follow(
 7477        this: Entity<Self>,
 7478        envelope: TypedEnvelope<proto::Follow>,
 7479        mut cx: AsyncApp,
 7480    ) -> Result<proto::FollowResponse> {
 7481        this.update(&mut cx, |this, cx| {
 7482            let follower = Follower {
 7483                project_id: envelope.payload.project_id,
 7484                peer_id: envelope.original_sender_id()?,
 7485            };
 7486
 7487            let mut response = proto::FollowResponse::default();
 7488            this.workspaces.retain(|workspace| {
 7489                workspace
 7490                    .update(cx, |workspace, window, cx| {
 7491                        let handler_response =
 7492                            workspace.handle_follow(follower.project_id, window, cx);
 7493                        if let Some(active_view) = handler_response.active_view
 7494                            && workspace.project.read(cx).remote_id() == follower.project_id
 7495                        {
 7496                            response.active_view = Some(active_view)
 7497                        }
 7498                    })
 7499                    .is_ok()
 7500            });
 7501
 7502            Ok(response)
 7503        })?
 7504    }
 7505
 7506    async fn handle_update_followers(
 7507        this: Entity<Self>,
 7508        envelope: TypedEnvelope<proto::UpdateFollowers>,
 7509        mut cx: AsyncApp,
 7510    ) -> Result<()> {
 7511        let leader_id = envelope.original_sender_id()?;
 7512        let update = envelope.payload;
 7513
 7514        this.update(&mut cx, |this, cx| {
 7515            this.workspaces.retain(|workspace| {
 7516                workspace
 7517                    .update(cx, |workspace, window, cx| {
 7518                        let project_id = workspace.project.read(cx).remote_id();
 7519                        if update.project_id != project_id && update.project_id.is_some() {
 7520                            return;
 7521                        }
 7522                        workspace.handle_update_followers(leader_id, update.clone(), window, cx);
 7523                    })
 7524                    .is_ok()
 7525            });
 7526            Ok(())
 7527        })?
 7528    }
 7529
 7530    pub fn workspaces(&self) -> &HashSet<WindowHandle<Workspace>> {
 7531        &self.workspaces
 7532    }
 7533}
 7534
 7535impl ViewId {
 7536    pub(crate) fn from_proto(message: proto::ViewId) -> Result<Self> {
 7537        Ok(Self {
 7538            creator: message
 7539                .creator
 7540                .map(CollaboratorId::PeerId)
 7541                .context("creator is missing")?,
 7542            id: message.id,
 7543        })
 7544    }
 7545
 7546    pub(crate) fn to_proto(self) -> Option<proto::ViewId> {
 7547        if let CollaboratorId::PeerId(peer_id) = self.creator {
 7548            Some(proto::ViewId {
 7549                creator: Some(peer_id),
 7550                id: self.id,
 7551            })
 7552        } else {
 7553            None
 7554        }
 7555    }
 7556}
 7557
 7558impl FollowerState {
 7559    fn pane(&self) -> &Entity<Pane> {
 7560        self.dock_pane.as_ref().unwrap_or(&self.center_pane)
 7561    }
 7562}
 7563
 7564pub trait WorkspaceHandle {
 7565    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath>;
 7566}
 7567
 7568impl WorkspaceHandle for Entity<Workspace> {
 7569    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath> {
 7570        self.read(cx)
 7571            .worktrees(cx)
 7572            .flat_map(|worktree| {
 7573                let worktree_id = worktree.read(cx).id();
 7574                worktree.read(cx).files(true, 0).map(move |f| ProjectPath {
 7575                    worktree_id,
 7576                    path: f.path.clone(),
 7577                })
 7578            })
 7579            .collect::<Vec<_>>()
 7580    }
 7581}
 7582
 7583pub async fn last_opened_workspace_location() -> Option<(SerializedWorkspaceLocation, PathList)> {
 7584    DB.last_workspace().await.log_err().flatten()
 7585}
 7586
 7587pub fn last_session_workspace_locations(
 7588    last_session_id: &str,
 7589    last_session_window_stack: Option<Vec<WindowId>>,
 7590) -> Option<Vec<(SerializedWorkspaceLocation, PathList)>> {
 7591    DB.last_session_workspace_locations(last_session_id, last_session_window_stack)
 7592        .log_err()
 7593}
 7594
 7595actions!(
 7596    collab,
 7597    [
 7598        /// Opens the channel notes for the current call.
 7599        ///
 7600        /// Use `collab_panel::OpenSelectedChannelNotes` to open the channel notes for the selected
 7601        /// channel in the collab panel.
 7602        ///
 7603        /// If you want to open a specific channel, use `zed::OpenZedUrl` with a channel notes URL -
 7604        /// can be copied via "Copy link to section" in the context menu of the channel notes
 7605        /// buffer. These URLs look like `https://zed.dev/channel/channel-name-CHANNEL_ID/notes`.
 7606        OpenChannelNotes,
 7607        /// Mutes your microphone.
 7608        Mute,
 7609        /// Deafens yourself (mute both microphone and speakers).
 7610        Deafen,
 7611        /// Leaves the current call.
 7612        LeaveCall,
 7613        /// Shares the current project with collaborators.
 7614        ShareProject,
 7615        /// Shares your screen with collaborators.
 7616        ScreenShare,
 7617        /// Copies the current room name and session id for debugging purposes.
 7618        CopyRoomId,
 7619    ]
 7620);
 7621actions!(
 7622    zed,
 7623    [
 7624        /// Opens the Zed log file.
 7625        OpenLog,
 7626        /// Reveals the Zed log file in the system file manager.
 7627        RevealLogInFileManager
 7628    ]
 7629);
 7630
 7631async fn join_channel_internal(
 7632    channel_id: ChannelId,
 7633    app_state: &Arc<AppState>,
 7634    requesting_window: Option<WindowHandle<Workspace>>,
 7635    active_call: &Entity<ActiveCall>,
 7636    cx: &mut AsyncApp,
 7637) -> Result<bool> {
 7638    let (should_prompt, open_room) = active_call.update(cx, |active_call, cx| {
 7639        let Some(room) = active_call.room().map(|room| room.read(cx)) else {
 7640            return (false, None);
 7641        };
 7642
 7643        let already_in_channel = room.channel_id() == Some(channel_id);
 7644        let should_prompt = room.is_sharing_project()
 7645            && !room.remote_participants().is_empty()
 7646            && !already_in_channel;
 7647        let open_room = if already_in_channel {
 7648            active_call.room().cloned()
 7649        } else {
 7650            None
 7651        };
 7652        (should_prompt, open_room)
 7653    })?;
 7654
 7655    if let Some(room) = open_room {
 7656        let task = room.update(cx, |room, cx| {
 7657            if let Some((project, host)) = room.most_active_project(cx) {
 7658                return Some(join_in_room_project(project, host, app_state.clone(), cx));
 7659            }
 7660
 7661            None
 7662        })?;
 7663        if let Some(task) = task {
 7664            task.await?;
 7665        }
 7666        return anyhow::Ok(true);
 7667    }
 7668
 7669    if should_prompt {
 7670        if let Some(workspace) = requesting_window {
 7671            let answer = workspace
 7672                .update(cx, |_, window, cx| {
 7673                    window.prompt(
 7674                        PromptLevel::Warning,
 7675                        "Do you want to switch channels?",
 7676                        Some("Leaving this call will unshare your current project."),
 7677                        &["Yes, Join Channel", "Cancel"],
 7678                        cx,
 7679                    )
 7680                })?
 7681                .await;
 7682
 7683            if answer == Ok(1) {
 7684                return Ok(false);
 7685            }
 7686        } else {
 7687            return Ok(false); // unreachable!() hopefully
 7688        }
 7689    }
 7690
 7691    let client = cx.update(|cx| active_call.read(cx).client())?;
 7692
 7693    let mut client_status = client.status();
 7694
 7695    // this loop will terminate within client::CONNECTION_TIMEOUT seconds.
 7696    'outer: loop {
 7697        let Some(status) = client_status.recv().await else {
 7698            anyhow::bail!("error connecting");
 7699        };
 7700
 7701        match status {
 7702            Status::Connecting
 7703            | Status::Authenticating
 7704            | Status::Authenticated
 7705            | Status::Reconnecting
 7706            | Status::Reauthenticating
 7707            | Status::Reauthenticated => continue,
 7708            Status::Connected { .. } => break 'outer,
 7709            Status::SignedOut | Status::AuthenticationError => {
 7710                return Err(ErrorCode::SignedOut.into());
 7711            }
 7712            Status::UpgradeRequired => return Err(ErrorCode::UpgradeRequired.into()),
 7713            Status::ConnectionError | Status::ConnectionLost | Status::ReconnectionError { .. } => {
 7714                return Err(ErrorCode::Disconnected.into());
 7715            }
 7716        }
 7717    }
 7718
 7719    let room = active_call
 7720        .update(cx, |active_call, cx| {
 7721            active_call.join_channel(channel_id, cx)
 7722        })?
 7723        .await?;
 7724
 7725    let Some(room) = room else {
 7726        return anyhow::Ok(true);
 7727    };
 7728
 7729    room.update(cx, |room, _| room.room_update_completed())?
 7730        .await;
 7731
 7732    let task = room.update(cx, |room, cx| {
 7733        if let Some((project, host)) = room.most_active_project(cx) {
 7734            return Some(join_in_room_project(project, host, app_state.clone(), cx));
 7735        }
 7736
 7737        // If you are the first to join a channel, see if you should share your project.
 7738        if room.remote_participants().is_empty()
 7739            && !room.local_participant_is_guest()
 7740            && let Some(workspace) = requesting_window
 7741        {
 7742            let project = workspace.update(cx, |workspace, _, cx| {
 7743                let project = workspace.project.read(cx);
 7744
 7745                if !CallSettings::get_global(cx).share_on_join {
 7746                    return None;
 7747                }
 7748
 7749                if (project.is_local() || project.is_via_remote_server())
 7750                    && project.visible_worktrees(cx).any(|tree| {
 7751                        tree.read(cx)
 7752                            .root_entry()
 7753                            .is_some_and(|entry| entry.is_dir())
 7754                    })
 7755                {
 7756                    Some(workspace.project.clone())
 7757                } else {
 7758                    None
 7759                }
 7760            });
 7761            if let Ok(Some(project)) = project {
 7762                return Some(cx.spawn(async move |room, cx| {
 7763                    room.update(cx, |room, cx| room.share_project(project, cx))?
 7764                        .await?;
 7765                    Ok(())
 7766                }));
 7767            }
 7768        }
 7769
 7770        None
 7771    })?;
 7772    if let Some(task) = task {
 7773        task.await?;
 7774        return anyhow::Ok(true);
 7775    }
 7776    anyhow::Ok(false)
 7777}
 7778
 7779pub fn join_channel(
 7780    channel_id: ChannelId,
 7781    app_state: Arc<AppState>,
 7782    requesting_window: Option<WindowHandle<Workspace>>,
 7783    cx: &mut App,
 7784) -> Task<Result<()>> {
 7785    let active_call = ActiveCall::global(cx);
 7786    cx.spawn(async move |cx| {
 7787        let result =
 7788            join_channel_internal(channel_id, &app_state, requesting_window, &active_call, cx)
 7789                .await;
 7790
 7791        // join channel succeeded, and opened a window
 7792        if matches!(result, Ok(true)) {
 7793            return anyhow::Ok(());
 7794        }
 7795
 7796        // find an existing workspace to focus and show call controls
 7797        let mut active_window = requesting_window.or_else(|| activate_any_workspace_window(cx));
 7798        if active_window.is_none() {
 7799            // no open workspaces, make one to show the error in (blergh)
 7800            let (window_handle, _) = cx
 7801                .update(|cx| {
 7802                    Workspace::new_local(
 7803                        vec![],
 7804                        app_state.clone(),
 7805                        requesting_window,
 7806                        None,
 7807                        None,
 7808                        cx,
 7809                    )
 7810                })?
 7811                .await?;
 7812
 7813            if result.is_ok() {
 7814                cx.update(|cx| {
 7815                    cx.dispatch_action(&OpenChannelNotes);
 7816                })
 7817                .log_err();
 7818            }
 7819
 7820            active_window = Some(window_handle);
 7821        }
 7822
 7823        if let Err(err) = result {
 7824            log::error!("failed to join channel: {}", err);
 7825            if let Some(active_window) = active_window {
 7826                active_window
 7827                    .update(cx, |_, window, cx| {
 7828                        let detail: SharedString = match err.error_code() {
 7829                            ErrorCode::SignedOut => "Please sign in to continue.".into(),
 7830                            ErrorCode::UpgradeRequired => concat!(
 7831                                "Your are running an unsupported version of Zed. ",
 7832                                "Please update to continue."
 7833                            )
 7834                            .into(),
 7835                            ErrorCode::NoSuchChannel => concat!(
 7836                                "No matching channel was found. ",
 7837                                "Please check the link and try again."
 7838                            )
 7839                            .into(),
 7840                            ErrorCode::Forbidden => concat!(
 7841                                "This channel is private, and you do not have access. ",
 7842                                "Please ask someone to add you and try again."
 7843                            )
 7844                            .into(),
 7845                            ErrorCode::Disconnected => {
 7846                                "Please check your internet connection and try again.".into()
 7847                            }
 7848                            _ => format!("{}\n\nPlease try again.", err).into(),
 7849                        };
 7850                        window.prompt(
 7851                            PromptLevel::Critical,
 7852                            "Failed to join channel",
 7853                            Some(&detail),
 7854                            &["Ok"],
 7855                            cx,
 7856                        )
 7857                    })?
 7858                    .await
 7859                    .ok();
 7860            }
 7861        }
 7862
 7863        // return ok, we showed the error to the user.
 7864        anyhow::Ok(())
 7865    })
 7866}
 7867
 7868pub async fn get_any_active_workspace(
 7869    app_state: Arc<AppState>,
 7870    mut cx: AsyncApp,
 7871) -> anyhow::Result<WindowHandle<Workspace>> {
 7872    // find an existing workspace to focus and show call controls
 7873    let active_window = activate_any_workspace_window(&mut cx);
 7874    if active_window.is_none() {
 7875        cx.update(|cx| Workspace::new_local(vec![], app_state.clone(), None, None, None, cx))?
 7876            .await?;
 7877    }
 7878    activate_any_workspace_window(&mut cx).context("could not open zed")
 7879}
 7880
 7881fn activate_any_workspace_window(cx: &mut AsyncApp) -> Option<WindowHandle<Workspace>> {
 7882    cx.update(|cx| {
 7883        if let Some(workspace_window) = cx
 7884            .active_window()
 7885            .and_then(|window| window.downcast::<Workspace>())
 7886        {
 7887            return Some(workspace_window);
 7888        }
 7889
 7890        for window in cx.windows() {
 7891            if let Some(workspace_window) = window.downcast::<Workspace>() {
 7892                workspace_window
 7893                    .update(cx, |_, window, _| window.activate_window())
 7894                    .ok();
 7895                return Some(workspace_window);
 7896            }
 7897        }
 7898        None
 7899    })
 7900    .ok()
 7901    .flatten()
 7902}
 7903
 7904pub fn local_workspace_windows(cx: &App) -> Vec<WindowHandle<Workspace>> {
 7905    cx.windows()
 7906        .into_iter()
 7907        .filter_map(|window| window.downcast::<Workspace>())
 7908        .filter(|workspace| {
 7909            workspace
 7910                .read(cx)
 7911                .is_ok_and(|workspace| workspace.project.read(cx).is_local())
 7912        })
 7913        .collect()
 7914}
 7915
 7916#[derive(Default)]
 7917pub struct OpenOptions {
 7918    pub visible: Option<OpenVisible>,
 7919    pub focus: Option<bool>,
 7920    pub open_new_workspace: Option<bool>,
 7921    pub prefer_focused_window: bool,
 7922    pub replace_window: Option<WindowHandle<Workspace>>,
 7923    pub env: Option<HashMap<String, String>>,
 7924}
 7925
 7926#[allow(clippy::type_complexity)]
 7927pub fn open_paths(
 7928    abs_paths: &[PathBuf],
 7929    app_state: Arc<AppState>,
 7930    open_options: OpenOptions,
 7931    cx: &mut App,
 7932) -> Task<
 7933    anyhow::Result<(
 7934        WindowHandle<Workspace>,
 7935        Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 7936    )>,
 7937> {
 7938    let abs_paths = abs_paths.to_vec();
 7939    let mut existing = None;
 7940    let mut best_match = None;
 7941    let mut open_visible = OpenVisible::All;
 7942    #[cfg(target_os = "windows")]
 7943    let wsl_path = abs_paths
 7944        .iter()
 7945        .find_map(|p| util::paths::WslPath::from_path(p));
 7946
 7947    cx.spawn(async move |cx| {
 7948        if open_options.open_new_workspace != Some(true) {
 7949            let all_paths = abs_paths.iter().map(|path| app_state.fs.metadata(path));
 7950            let all_metadatas = futures::future::join_all(all_paths)
 7951                .await
 7952                .into_iter()
 7953                .filter_map(|result| result.ok().flatten())
 7954                .collect::<Vec<_>>();
 7955
 7956            cx.update(|cx| {
 7957                for window in local_workspace_windows(cx) {
 7958                    if let Ok(workspace) = window.read(cx) {
 7959                        let m = workspace.project.read(cx).visibility_for_paths(
 7960                            &abs_paths,
 7961                            &all_metadatas,
 7962                            open_options.open_new_workspace == None,
 7963                            cx,
 7964                        );
 7965                        if m > best_match {
 7966                            existing = Some(window);
 7967                            best_match = m;
 7968                        } else if best_match.is_none()
 7969                            && open_options.open_new_workspace == Some(false)
 7970                        {
 7971                            existing = Some(window)
 7972                        }
 7973                    }
 7974                }
 7975            })?;
 7976
 7977            if open_options.open_new_workspace.is_none()
 7978                && (existing.is_none() || open_options.prefer_focused_window)
 7979                && all_metadatas.iter().all(|file| !file.is_dir)
 7980            {
 7981                cx.update(|cx| {
 7982                    if let Some(window) = cx
 7983                        .active_window()
 7984                        .and_then(|window| window.downcast::<Workspace>())
 7985                        && let Ok(workspace) = window.read(cx)
 7986                    {
 7987                        let project = workspace.project().read(cx);
 7988                        if project.is_local() && !project.is_via_collab() {
 7989                            existing = Some(window);
 7990                            open_visible = OpenVisible::None;
 7991                            return;
 7992                        }
 7993                    }
 7994                    for window in local_workspace_windows(cx) {
 7995                        if let Ok(workspace) = window.read(cx) {
 7996                            let project = workspace.project().read(cx);
 7997                            if project.is_via_collab() {
 7998                                continue;
 7999                            }
 8000                            existing = Some(window);
 8001                            open_visible = OpenVisible::None;
 8002                            break;
 8003                        }
 8004                    }
 8005                })?;
 8006            }
 8007        }
 8008
 8009        let result = if let Some(existing) = existing {
 8010            let open_task = existing
 8011                .update(cx, |workspace, window, cx| {
 8012                    window.activate_window();
 8013                    workspace.open_paths(
 8014                        abs_paths,
 8015                        OpenOptions {
 8016                            visible: Some(open_visible),
 8017                            ..Default::default()
 8018                        },
 8019                        None,
 8020                        window,
 8021                        cx,
 8022                    )
 8023                })?
 8024                .await;
 8025
 8026            _ = existing.update(cx, |workspace, _, cx| {
 8027                for item in open_task.iter().flatten() {
 8028                    if let Err(e) = item {
 8029                        workspace.show_error(&e, cx);
 8030                    }
 8031                }
 8032            });
 8033
 8034            Ok((existing, open_task))
 8035        } else {
 8036            cx.update(move |cx| {
 8037                Workspace::new_local(
 8038                    abs_paths,
 8039                    app_state.clone(),
 8040                    open_options.replace_window,
 8041                    open_options.env,
 8042                    None,
 8043                    cx,
 8044                )
 8045            })?
 8046            .await
 8047        };
 8048
 8049        #[cfg(target_os = "windows")]
 8050        if let Some(util::paths::WslPath{distro, path}) = wsl_path
 8051            && let Ok((workspace, _)) = &result
 8052        {
 8053            workspace
 8054                .update(cx, move |workspace, _window, cx| {
 8055                    struct OpenInWsl;
 8056                    workspace.show_notification(NotificationId::unique::<OpenInWsl>(), cx, move |cx| {
 8057                        let display_path = util::markdown::MarkdownInlineCode(&path.to_string_lossy());
 8058                        let msg = format!("{display_path} is inside a WSL filesystem, some features may not work unless you open it with WSL remote");
 8059                        cx.new(move |cx| {
 8060                            MessageNotification::new(msg, cx)
 8061                                .primary_message("Open in WSL")
 8062                                .primary_icon(IconName::FolderOpen)
 8063                                .primary_on_click(move |window, cx| {
 8064                                    window.dispatch_action(Box::new(remote::OpenWslPath {
 8065                                            distro: remote::WslConnectionOptions {
 8066                                                    distro_name: distro.clone(),
 8067                                                user: None,
 8068                                            },
 8069                                            paths: vec![path.clone().into()],
 8070                                        }), cx)
 8071                                })
 8072                        })
 8073                    });
 8074                })
 8075                .unwrap();
 8076        };
 8077        result
 8078    })
 8079}
 8080
 8081pub fn open_new(
 8082    open_options: OpenOptions,
 8083    app_state: Arc<AppState>,
 8084    cx: &mut App,
 8085    init: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + 'static + Send,
 8086) -> Task<anyhow::Result<()>> {
 8087    let task = Workspace::new_local(
 8088        Vec::new(),
 8089        app_state,
 8090        None,
 8091        open_options.env,
 8092        Some(Box::new(init)),
 8093        cx,
 8094    );
 8095    cx.spawn(async move |_cx| {
 8096        let (_workspace, _opened_paths) = task.await?;
 8097        // Init callback is called synchronously during workspace creation
 8098        Ok(())
 8099    })
 8100}
 8101
 8102pub fn create_and_open_local_file(
 8103    path: &'static Path,
 8104    window: &mut Window,
 8105    cx: &mut Context<Workspace>,
 8106    default_content: impl 'static + Send + FnOnce() -> Rope,
 8107) -> Task<Result<Box<dyn ItemHandle>>> {
 8108    cx.spawn_in(window, async move |workspace, cx| {
 8109        let fs = workspace.read_with(cx, |workspace, _| workspace.app_state().fs.clone())?;
 8110        if !fs.is_file(path).await {
 8111            fs.create_file(path, Default::default()).await?;
 8112            fs.save(path, &default_content(), Default::default())
 8113                .await?;
 8114        }
 8115
 8116        let mut items = workspace
 8117            .update_in(cx, |workspace, window, cx| {
 8118                workspace.with_local_workspace(window, cx, |workspace, window, cx| {
 8119                    workspace.open_paths(
 8120                        vec![path.to_path_buf()],
 8121                        OpenOptions {
 8122                            visible: Some(OpenVisible::None),
 8123                            ..Default::default()
 8124                        },
 8125                        None,
 8126                        window,
 8127                        cx,
 8128                    )
 8129                })
 8130            })?
 8131            .await?
 8132            .await;
 8133
 8134        let item = items.pop().flatten();
 8135        item.with_context(|| format!("path {path:?} is not a file"))?
 8136    })
 8137}
 8138
 8139pub fn open_remote_project_with_new_connection(
 8140    window: WindowHandle<Workspace>,
 8141    remote_connection: Arc<dyn RemoteConnection>,
 8142    cancel_rx: oneshot::Receiver<()>,
 8143    delegate: Arc<dyn RemoteClientDelegate>,
 8144    app_state: Arc<AppState>,
 8145    paths: Vec<PathBuf>,
 8146    cx: &mut App,
 8147) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 8148    cx.spawn(async move |cx| {
 8149        let (workspace_id, serialized_workspace) =
 8150            deserialize_remote_project(remote_connection.connection_options(), paths.clone(), cx)
 8151                .await?;
 8152
 8153        let session = match cx
 8154            .update(|cx| {
 8155                remote::RemoteClient::new(
 8156                    ConnectionIdentifier::Workspace(workspace_id.0),
 8157                    remote_connection,
 8158                    cancel_rx,
 8159                    delegate,
 8160                    cx,
 8161                )
 8162            })?
 8163            .await?
 8164        {
 8165            Some(result) => result,
 8166            None => return Ok(Vec::new()),
 8167        };
 8168
 8169        let project = cx.update(|cx| {
 8170            project::Project::remote(
 8171                session,
 8172                app_state.client.clone(),
 8173                app_state.node_runtime.clone(),
 8174                app_state.user_store.clone(),
 8175                app_state.languages.clone(),
 8176                app_state.fs.clone(),
 8177                true,
 8178                cx,
 8179            )
 8180        })?;
 8181
 8182        open_remote_project_inner(
 8183            project,
 8184            paths,
 8185            workspace_id,
 8186            serialized_workspace,
 8187            app_state,
 8188            window,
 8189            cx,
 8190        )
 8191        .await
 8192    })
 8193}
 8194
 8195pub fn open_remote_project_with_existing_connection(
 8196    connection_options: RemoteConnectionOptions,
 8197    project: Entity<Project>,
 8198    paths: Vec<PathBuf>,
 8199    app_state: Arc<AppState>,
 8200    window: WindowHandle<Workspace>,
 8201    cx: &mut AsyncApp,
 8202) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 8203    cx.spawn(async move |cx| {
 8204        let (workspace_id, serialized_workspace) =
 8205            deserialize_remote_project(connection_options.clone(), paths.clone(), cx).await?;
 8206
 8207        open_remote_project_inner(
 8208            project,
 8209            paths,
 8210            workspace_id,
 8211            serialized_workspace,
 8212            app_state,
 8213            window,
 8214            cx,
 8215        )
 8216        .await
 8217    })
 8218}
 8219
 8220async fn open_remote_project_inner(
 8221    project: Entity<Project>,
 8222    paths: Vec<PathBuf>,
 8223    workspace_id: WorkspaceId,
 8224    serialized_workspace: Option<SerializedWorkspace>,
 8225    app_state: Arc<AppState>,
 8226    window: WindowHandle<Workspace>,
 8227    cx: &mut AsyncApp,
 8228) -> Result<Vec<Option<Box<dyn ItemHandle>>>> {
 8229    let toolchains = DB.toolchains(workspace_id).await?;
 8230    for (toolchain, worktree_path, path) in toolchains {
 8231        project
 8232            .update(cx, |this, cx| {
 8233                let Some(worktree_id) =
 8234                    this.find_worktree(&worktree_path, cx)
 8235                        .and_then(|(worktree, rel_path)| {
 8236                            if rel_path.is_empty() {
 8237                                Some(worktree.read(cx).id())
 8238                            } else {
 8239                                None
 8240                            }
 8241                        })
 8242                else {
 8243                    return Task::ready(None);
 8244                };
 8245
 8246                this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 8247            })?
 8248            .await;
 8249    }
 8250    let mut project_paths_to_open = vec![];
 8251    let mut project_path_errors = vec![];
 8252
 8253    for path in paths {
 8254        let result = cx
 8255            .update(|cx| Workspace::project_path_for_path(project.clone(), &path, true, cx))?
 8256            .await;
 8257        match result {
 8258            Ok((_, project_path)) => {
 8259                project_paths_to_open.push((path.clone(), Some(project_path)));
 8260            }
 8261            Err(error) => {
 8262                project_path_errors.push(error);
 8263            }
 8264        };
 8265    }
 8266
 8267    if project_paths_to_open.is_empty() {
 8268        return Err(project_path_errors.pop().context("no paths given")?);
 8269    }
 8270
 8271    if let Some(detach_session_task) = window
 8272        .update(cx, |_workspace, window, cx| {
 8273            cx.spawn_in(window, async move |this, cx| {
 8274                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))
 8275            })
 8276        })
 8277        .ok()
 8278    {
 8279        detach_session_task.await.ok();
 8280    }
 8281
 8282    cx.update_window(window.into(), |_, window, cx| {
 8283        window.replace_root(cx, |window, cx| {
 8284            telemetry::event!("SSH Project Opened");
 8285
 8286            let mut workspace =
 8287                Workspace::new(Some(workspace_id), project, app_state.clone(), window, cx);
 8288            workspace.update_history(cx);
 8289
 8290            if let Some(ref serialized) = serialized_workspace {
 8291                workspace.centered_layout = serialized.centered_layout;
 8292            }
 8293
 8294            workspace
 8295        });
 8296    })?;
 8297
 8298    let items = window
 8299        .update(cx, |_, window, cx| {
 8300            window.activate_window();
 8301            open_items(serialized_workspace, project_paths_to_open, window, cx)
 8302        })?
 8303        .await?;
 8304
 8305    window.update(cx, |workspace, _, cx| {
 8306        for error in project_path_errors {
 8307            if error.error_code() == proto::ErrorCode::DevServerProjectPathDoesNotExist {
 8308                if let Some(path) = error.error_tag("path") {
 8309                    workspace.show_error(&anyhow!("'{path}' does not exist"), cx)
 8310                }
 8311            } else {
 8312                workspace.show_error(&error, cx)
 8313            }
 8314        }
 8315    })?;
 8316
 8317    Ok(items.into_iter().map(|item| item?.ok()).collect())
 8318}
 8319
 8320fn deserialize_remote_project(
 8321    connection_options: RemoteConnectionOptions,
 8322    paths: Vec<PathBuf>,
 8323    cx: &AsyncApp,
 8324) -> Task<Result<(WorkspaceId, Option<SerializedWorkspace>)>> {
 8325    cx.background_spawn(async move {
 8326        let remote_connection_id = persistence::DB
 8327            .get_or_create_remote_connection(connection_options)
 8328            .await?;
 8329
 8330        let serialized_workspace =
 8331            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 8332
 8333        let workspace_id = if let Some(workspace_id) =
 8334            serialized_workspace.as_ref().map(|workspace| workspace.id)
 8335        {
 8336            workspace_id
 8337        } else {
 8338            persistence::DB.next_id().await?
 8339        };
 8340
 8341        Ok((workspace_id, serialized_workspace))
 8342    })
 8343}
 8344
 8345pub fn join_in_room_project(
 8346    project_id: u64,
 8347    follow_user_id: u64,
 8348    app_state: Arc<AppState>,
 8349    cx: &mut App,
 8350) -> Task<Result<()>> {
 8351    let windows = cx.windows();
 8352    cx.spawn(async move |cx| {
 8353        let existing_workspace = windows.into_iter().find_map(|window_handle| {
 8354            window_handle
 8355                .downcast::<Workspace>()
 8356                .and_then(|window_handle| {
 8357                    window_handle
 8358                        .update(cx, |workspace, _window, cx| {
 8359                            if workspace.project().read(cx).remote_id() == Some(project_id) {
 8360                                Some(window_handle)
 8361                            } else {
 8362                                None
 8363                            }
 8364                        })
 8365                        .unwrap_or(None)
 8366                })
 8367        });
 8368
 8369        let workspace = if let Some(existing_workspace) = existing_workspace {
 8370            existing_workspace
 8371        } else {
 8372            let active_call = cx.update(|cx| ActiveCall::global(cx))?;
 8373            let room = active_call
 8374                .read_with(cx, |call, _| call.room().cloned())?
 8375                .context("not in a call")?;
 8376            let project = room
 8377                .update(cx, |room, cx| {
 8378                    room.join_project(
 8379                        project_id,
 8380                        app_state.languages.clone(),
 8381                        app_state.fs.clone(),
 8382                        cx,
 8383                    )
 8384                })?
 8385                .await?;
 8386
 8387            let window_bounds_override = window_bounds_env_override();
 8388            cx.update(|cx| {
 8389                let mut options = (app_state.build_window_options)(None, cx);
 8390                options.window_bounds = window_bounds_override.map(WindowBounds::Windowed);
 8391                cx.open_window(options, |window, cx| {
 8392                    cx.new(|cx| {
 8393                        Workspace::new(Default::default(), project, app_state.clone(), window, cx)
 8394                    })
 8395                })
 8396            })??
 8397        };
 8398
 8399        workspace.update(cx, |workspace, window, cx| {
 8400            cx.activate(true);
 8401            window.activate_window();
 8402
 8403            if let Some(room) = ActiveCall::global(cx).read(cx).room().cloned() {
 8404                let follow_peer_id = room
 8405                    .read(cx)
 8406                    .remote_participants()
 8407                    .iter()
 8408                    .find(|(_, participant)| participant.user.id == follow_user_id)
 8409                    .map(|(_, p)| p.peer_id)
 8410                    .or_else(|| {
 8411                        // If we couldn't follow the given user, follow the host instead.
 8412                        let collaborator = workspace
 8413                            .project()
 8414                            .read(cx)
 8415                            .collaborators()
 8416                            .values()
 8417                            .find(|collaborator| collaborator.is_host)?;
 8418                        Some(collaborator.peer_id)
 8419                    });
 8420
 8421                if let Some(follow_peer_id) = follow_peer_id {
 8422                    workspace.follow(follow_peer_id, window, cx);
 8423                }
 8424            }
 8425        })?;
 8426
 8427        anyhow::Ok(())
 8428    })
 8429}
 8430
 8431pub fn reload(cx: &mut App) {
 8432    let should_confirm = WorkspaceSettings::get_global(cx).confirm_quit;
 8433    let mut workspace_windows = cx
 8434        .windows()
 8435        .into_iter()
 8436        .filter_map(|window| window.downcast::<Workspace>())
 8437        .collect::<Vec<_>>();
 8438
 8439    // If multiple windows have unsaved changes, and need a save prompt,
 8440    // prompt in the active window before switching to a different window.
 8441    workspace_windows.sort_by_key(|window| window.is_active(cx) == Some(false));
 8442
 8443    let mut prompt = None;
 8444    if let (true, Some(window)) = (should_confirm, workspace_windows.first()) {
 8445        prompt = window
 8446            .update(cx, |_, window, cx| {
 8447                window.prompt(
 8448                    PromptLevel::Info,
 8449                    "Are you sure you want to restart?",
 8450                    None,
 8451                    &["Restart", "Cancel"],
 8452                    cx,
 8453                )
 8454            })
 8455            .ok();
 8456    }
 8457
 8458    cx.spawn(async move |cx| {
 8459        if let Some(prompt) = prompt {
 8460            let answer = prompt.await?;
 8461            if answer != 0 {
 8462                return Ok(());
 8463            }
 8464        }
 8465
 8466        // If the user cancels any save prompt, then keep the app open.
 8467        for window in workspace_windows {
 8468            if let Ok(should_close) = window.update(cx, |workspace, window, cx| {
 8469                workspace.prepare_to_close(CloseIntent::Quit, window, cx)
 8470            }) && !should_close.await?
 8471            {
 8472                return Ok(());
 8473            }
 8474        }
 8475        cx.update(|cx| cx.restart())
 8476    })
 8477    .detach_and_log_err(cx);
 8478}
 8479
 8480fn parse_pixel_position_env_var(value: &str) -> Option<Point<Pixels>> {
 8481    let mut parts = value.split(',');
 8482    let x: usize = parts.next()?.parse().ok()?;
 8483    let y: usize = parts.next()?.parse().ok()?;
 8484    Some(point(px(x as f32), px(y as f32)))
 8485}
 8486
 8487fn parse_pixel_size_env_var(value: &str) -> Option<Size<Pixels>> {
 8488    let mut parts = value.split(',');
 8489    let width: usize = parts.next()?.parse().ok()?;
 8490    let height: usize = parts.next()?.parse().ok()?;
 8491    Some(size(px(width as f32), px(height as f32)))
 8492}
 8493
 8494/// Add client-side decorations (rounded corners, shadows, resize handling) when appropriate.
 8495pub fn client_side_decorations(
 8496    element: impl IntoElement,
 8497    window: &mut Window,
 8498    cx: &mut App,
 8499) -> Stateful<Div> {
 8500    const BORDER_SIZE: Pixels = px(1.0);
 8501    let decorations = window.window_decorations();
 8502
 8503    match decorations {
 8504        Decorations::Client { .. } => window.set_client_inset(theme::CLIENT_SIDE_DECORATION_SHADOW),
 8505        Decorations::Server => window.set_client_inset(px(0.0)),
 8506    }
 8507
 8508    struct GlobalResizeEdge(ResizeEdge);
 8509    impl Global for GlobalResizeEdge {}
 8510
 8511    div()
 8512        .id("window-backdrop")
 8513        .bg(transparent_black())
 8514        .map(|div| match decorations {
 8515            Decorations::Server => div,
 8516            Decorations::Client { tiling, .. } => div
 8517                .when(!(tiling.top || tiling.right), |div| {
 8518                    div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8519                })
 8520                .when(!(tiling.top || tiling.left), |div| {
 8521                    div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8522                })
 8523                .when(!(tiling.bottom || tiling.right), |div| {
 8524                    div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8525                })
 8526                .when(!(tiling.bottom || tiling.left), |div| {
 8527                    div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8528                })
 8529                .when(!tiling.top, |div| {
 8530                    div.pt(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8531                })
 8532                .when(!tiling.bottom, |div| {
 8533                    div.pb(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8534                })
 8535                .when(!tiling.left, |div| {
 8536                    div.pl(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8537                })
 8538                .when(!tiling.right, |div| {
 8539                    div.pr(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8540                })
 8541                .on_mouse_move(move |e, window, cx| {
 8542                    let size = window.window_bounds().get_bounds().size;
 8543                    let pos = e.position;
 8544
 8545                    let new_edge =
 8546                        resize_edge(pos, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling);
 8547
 8548                    let edge = cx.try_global::<GlobalResizeEdge>();
 8549                    if new_edge != edge.map(|edge| edge.0) {
 8550                        window
 8551                            .window_handle()
 8552                            .update(cx, |workspace, _, cx| {
 8553                                cx.notify(workspace.entity_id());
 8554                            })
 8555                            .ok();
 8556                    }
 8557                })
 8558                .on_mouse_down(MouseButton::Left, move |e, window, _| {
 8559                    let size = window.window_bounds().get_bounds().size;
 8560                    let pos = e.position;
 8561
 8562                    let edge = match resize_edge(
 8563                        pos,
 8564                        theme::CLIENT_SIDE_DECORATION_SHADOW,
 8565                        size,
 8566                        tiling,
 8567                    ) {
 8568                        Some(value) => value,
 8569                        None => return,
 8570                    };
 8571
 8572                    window.start_window_resize(edge);
 8573                }),
 8574        })
 8575        .size_full()
 8576        .child(
 8577            div()
 8578                .cursor(CursorStyle::Arrow)
 8579                .map(|div| match decorations {
 8580                    Decorations::Server => div,
 8581                    Decorations::Client { tiling } => div
 8582                        .border_color(cx.theme().colors().border)
 8583                        .when(!(tiling.top || tiling.right), |div| {
 8584                            div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8585                        })
 8586                        .when(!(tiling.top || tiling.left), |div| {
 8587                            div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8588                        })
 8589                        .when(!(tiling.bottom || tiling.right), |div| {
 8590                            div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8591                        })
 8592                        .when(!(tiling.bottom || tiling.left), |div| {
 8593                            div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8594                        })
 8595                        .when(!tiling.top, |div| div.border_t(BORDER_SIZE))
 8596                        .when(!tiling.bottom, |div| div.border_b(BORDER_SIZE))
 8597                        .when(!tiling.left, |div| div.border_l(BORDER_SIZE))
 8598                        .when(!tiling.right, |div| div.border_r(BORDER_SIZE))
 8599                        .when(!tiling.is_tiled(), |div| {
 8600                            div.shadow(vec![gpui::BoxShadow {
 8601                                color: Hsla {
 8602                                    h: 0.,
 8603                                    s: 0.,
 8604                                    l: 0.,
 8605                                    a: 0.4,
 8606                                },
 8607                                blur_radius: theme::CLIENT_SIDE_DECORATION_SHADOW / 2.,
 8608                                spread_radius: px(0.),
 8609                                offset: point(px(0.0), px(0.0)),
 8610                            }])
 8611                        }),
 8612                })
 8613                .on_mouse_move(|_e, _, cx| {
 8614                    cx.stop_propagation();
 8615                })
 8616                .size_full()
 8617                .child(element),
 8618        )
 8619        .map(|div| match decorations {
 8620            Decorations::Server => div,
 8621            Decorations::Client { tiling, .. } => div.child(
 8622                canvas(
 8623                    |_bounds, window, _| {
 8624                        window.insert_hitbox(
 8625                            Bounds::new(
 8626                                point(px(0.0), px(0.0)),
 8627                                window.window_bounds().get_bounds().size,
 8628                            ),
 8629                            HitboxBehavior::Normal,
 8630                        )
 8631                    },
 8632                    move |_bounds, hitbox, window, cx| {
 8633                        let mouse = window.mouse_position();
 8634                        let size = window.window_bounds().get_bounds().size;
 8635                        let Some(edge) =
 8636                            resize_edge(mouse, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling)
 8637                        else {
 8638                            return;
 8639                        };
 8640                        cx.set_global(GlobalResizeEdge(edge));
 8641                        window.set_cursor_style(
 8642                            match edge {
 8643                                ResizeEdge::Top | ResizeEdge::Bottom => CursorStyle::ResizeUpDown,
 8644                                ResizeEdge::Left | ResizeEdge::Right => {
 8645                                    CursorStyle::ResizeLeftRight
 8646                                }
 8647                                ResizeEdge::TopLeft | ResizeEdge::BottomRight => {
 8648                                    CursorStyle::ResizeUpLeftDownRight
 8649                                }
 8650                                ResizeEdge::TopRight | ResizeEdge::BottomLeft => {
 8651                                    CursorStyle::ResizeUpRightDownLeft
 8652                                }
 8653                            },
 8654                            &hitbox,
 8655                        );
 8656                    },
 8657                )
 8658                .size_full()
 8659                .absolute(),
 8660            ),
 8661        })
 8662}
 8663
 8664fn resize_edge(
 8665    pos: Point<Pixels>,
 8666    shadow_size: Pixels,
 8667    window_size: Size<Pixels>,
 8668    tiling: Tiling,
 8669) -> Option<ResizeEdge> {
 8670    let bounds = Bounds::new(Point::default(), window_size).inset(shadow_size * 1.5);
 8671    if bounds.contains(&pos) {
 8672        return None;
 8673    }
 8674
 8675    let corner_size = size(shadow_size * 1.5, shadow_size * 1.5);
 8676    let top_left_bounds = Bounds::new(Point::new(px(0.), px(0.)), corner_size);
 8677    if !tiling.top && top_left_bounds.contains(&pos) {
 8678        return Some(ResizeEdge::TopLeft);
 8679    }
 8680
 8681    let top_right_bounds = Bounds::new(
 8682        Point::new(window_size.width - corner_size.width, px(0.)),
 8683        corner_size,
 8684    );
 8685    if !tiling.top && top_right_bounds.contains(&pos) {
 8686        return Some(ResizeEdge::TopRight);
 8687    }
 8688
 8689    let bottom_left_bounds = Bounds::new(
 8690        Point::new(px(0.), window_size.height - corner_size.height),
 8691        corner_size,
 8692    );
 8693    if !tiling.bottom && bottom_left_bounds.contains(&pos) {
 8694        return Some(ResizeEdge::BottomLeft);
 8695    }
 8696
 8697    let bottom_right_bounds = Bounds::new(
 8698        Point::new(
 8699            window_size.width - corner_size.width,
 8700            window_size.height - corner_size.height,
 8701        ),
 8702        corner_size,
 8703    );
 8704    if !tiling.bottom && bottom_right_bounds.contains(&pos) {
 8705        return Some(ResizeEdge::BottomRight);
 8706    }
 8707
 8708    if !tiling.top && pos.y < shadow_size {
 8709        Some(ResizeEdge::Top)
 8710    } else if !tiling.bottom && pos.y > window_size.height - shadow_size {
 8711        Some(ResizeEdge::Bottom)
 8712    } else if !tiling.left && pos.x < shadow_size {
 8713        Some(ResizeEdge::Left)
 8714    } else if !tiling.right && pos.x > window_size.width - shadow_size {
 8715        Some(ResizeEdge::Right)
 8716    } else {
 8717        None
 8718    }
 8719}
 8720
 8721fn join_pane_into_active(
 8722    active_pane: &Entity<Pane>,
 8723    pane: &Entity<Pane>,
 8724    window: &mut Window,
 8725    cx: &mut App,
 8726) {
 8727    if pane == active_pane {
 8728    } else if pane.read(cx).items_len() == 0 {
 8729        pane.update(cx, |_, cx| {
 8730            cx.emit(pane::Event::Remove {
 8731                focus_on_pane: None,
 8732            });
 8733        })
 8734    } else {
 8735        move_all_items(pane, active_pane, window, cx);
 8736    }
 8737}
 8738
 8739fn move_all_items(
 8740    from_pane: &Entity<Pane>,
 8741    to_pane: &Entity<Pane>,
 8742    window: &mut Window,
 8743    cx: &mut App,
 8744) {
 8745    let destination_is_different = from_pane != to_pane;
 8746    let mut moved_items = 0;
 8747    for (item_ix, item_handle) in from_pane
 8748        .read(cx)
 8749        .items()
 8750        .enumerate()
 8751        .map(|(ix, item)| (ix, item.clone()))
 8752        .collect::<Vec<_>>()
 8753    {
 8754        let ix = item_ix - moved_items;
 8755        if destination_is_different {
 8756            // Close item from previous pane
 8757            from_pane.update(cx, |source, cx| {
 8758                source.remove_item_and_focus_on_pane(ix, false, to_pane.clone(), window, cx);
 8759            });
 8760            moved_items += 1;
 8761        }
 8762
 8763        // This automatically removes duplicate items in the pane
 8764        to_pane.update(cx, |destination, cx| {
 8765            destination.add_item(item_handle, true, true, None, window, cx);
 8766            window.focus(&destination.focus_handle(cx), cx)
 8767        });
 8768    }
 8769}
 8770
 8771pub fn move_item(
 8772    source: &Entity<Pane>,
 8773    destination: &Entity<Pane>,
 8774    item_id_to_move: EntityId,
 8775    destination_index: usize,
 8776    activate: bool,
 8777    window: &mut Window,
 8778    cx: &mut App,
 8779) {
 8780    let Some((item_ix, item_handle)) = source
 8781        .read(cx)
 8782        .items()
 8783        .enumerate()
 8784        .find(|(_, item_handle)| item_handle.item_id() == item_id_to_move)
 8785        .map(|(ix, item)| (ix, item.clone()))
 8786    else {
 8787        // Tab was closed during drag
 8788        return;
 8789    };
 8790
 8791    if source != destination {
 8792        // Close item from previous pane
 8793        source.update(cx, |source, cx| {
 8794            source.remove_item_and_focus_on_pane(item_ix, false, destination.clone(), window, cx);
 8795        });
 8796    }
 8797
 8798    // This automatically removes duplicate items in the pane
 8799    destination.update(cx, |destination, cx| {
 8800        destination.add_item_inner(
 8801            item_handle,
 8802            activate,
 8803            activate,
 8804            activate,
 8805            Some(destination_index),
 8806            window,
 8807            cx,
 8808        );
 8809        if activate {
 8810            window.focus(&destination.focus_handle(cx), cx)
 8811        }
 8812    });
 8813}
 8814
 8815pub fn move_active_item(
 8816    source: &Entity<Pane>,
 8817    destination: &Entity<Pane>,
 8818    focus_destination: bool,
 8819    close_if_empty: bool,
 8820    window: &mut Window,
 8821    cx: &mut App,
 8822) {
 8823    if source == destination {
 8824        return;
 8825    }
 8826    let Some(active_item) = source.read(cx).active_item() else {
 8827        return;
 8828    };
 8829    source.update(cx, |source_pane, cx| {
 8830        let item_id = active_item.item_id();
 8831        source_pane.remove_item(item_id, false, close_if_empty, window, cx);
 8832        destination.update(cx, |target_pane, cx| {
 8833            target_pane.add_item(
 8834                active_item,
 8835                focus_destination,
 8836                focus_destination,
 8837                Some(target_pane.items_len()),
 8838                window,
 8839                cx,
 8840            );
 8841        });
 8842    });
 8843}
 8844
 8845pub fn clone_active_item(
 8846    workspace_id: Option<WorkspaceId>,
 8847    source: &Entity<Pane>,
 8848    destination: &Entity<Pane>,
 8849    focus_destination: bool,
 8850    window: &mut Window,
 8851    cx: &mut App,
 8852) {
 8853    if source == destination {
 8854        return;
 8855    }
 8856    let Some(active_item) = source.read(cx).active_item() else {
 8857        return;
 8858    };
 8859    if !active_item.can_split(cx) {
 8860        return;
 8861    }
 8862    let destination = destination.downgrade();
 8863    let task = active_item.clone_on_split(workspace_id, window, cx);
 8864    window
 8865        .spawn(cx, async move |cx| {
 8866            let Some(clone) = task.await else {
 8867                return;
 8868            };
 8869            destination
 8870                .update_in(cx, |target_pane, window, cx| {
 8871                    target_pane.add_item(
 8872                        clone,
 8873                        focus_destination,
 8874                        focus_destination,
 8875                        Some(target_pane.items_len()),
 8876                        window,
 8877                        cx,
 8878                    );
 8879                })
 8880                .log_err();
 8881        })
 8882        .detach();
 8883}
 8884
 8885#[derive(Debug)]
 8886pub struct WorkspacePosition {
 8887    pub window_bounds: Option<WindowBounds>,
 8888    pub display: Option<Uuid>,
 8889    pub centered_layout: bool,
 8890}
 8891
 8892pub fn remote_workspace_position_from_db(
 8893    connection_options: RemoteConnectionOptions,
 8894    paths_to_open: &[PathBuf],
 8895    cx: &App,
 8896) -> Task<Result<WorkspacePosition>> {
 8897    let paths = paths_to_open.to_vec();
 8898
 8899    cx.background_spawn(async move {
 8900        let remote_connection_id = persistence::DB
 8901            .get_or_create_remote_connection(connection_options)
 8902            .await
 8903            .context("fetching serialized ssh project")?;
 8904        let serialized_workspace =
 8905            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 8906
 8907        let (window_bounds, display) = if let Some(bounds) = window_bounds_env_override() {
 8908            (Some(WindowBounds::Windowed(bounds)), None)
 8909        } else {
 8910            let restorable_bounds = serialized_workspace
 8911                .as_ref()
 8912                .and_then(|workspace| {
 8913                    Some((workspace.display?, workspace.window_bounds.map(|b| b.0)?))
 8914                })
 8915                .or_else(|| persistence::read_default_window_bounds());
 8916
 8917            if let Some((serialized_display, serialized_bounds)) = restorable_bounds {
 8918                (Some(serialized_bounds), Some(serialized_display))
 8919            } else {
 8920                (None, None)
 8921            }
 8922        };
 8923
 8924        let centered_layout = serialized_workspace
 8925            .as_ref()
 8926            .map(|w| w.centered_layout)
 8927            .unwrap_or(false);
 8928
 8929        Ok(WorkspacePosition {
 8930            window_bounds,
 8931            display,
 8932            centered_layout,
 8933        })
 8934    })
 8935}
 8936
 8937pub fn with_active_or_new_workspace(
 8938    cx: &mut App,
 8939    f: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send + 'static,
 8940) {
 8941    match cx.active_window().and_then(|w| w.downcast::<Workspace>()) {
 8942        Some(workspace) => {
 8943            cx.defer(move |cx| {
 8944                workspace
 8945                    .update(cx, |workspace, window, cx| f(workspace, window, cx))
 8946                    .log_err();
 8947            });
 8948        }
 8949        None => {
 8950            let app_state = AppState::global(cx);
 8951            if let Some(app_state) = app_state.upgrade() {
 8952                open_new(
 8953                    OpenOptions::default(),
 8954                    app_state,
 8955                    cx,
 8956                    move |workspace, window, cx| f(workspace, window, cx),
 8957                )
 8958                .detach_and_log_err(cx);
 8959            }
 8960        }
 8961    }
 8962}
 8963
 8964#[cfg(test)]
 8965mod tests {
 8966    use std::{cell::RefCell, rc::Rc};
 8967
 8968    use super::*;
 8969    use crate::{
 8970        dock::{PanelEvent, test::TestPanel},
 8971        item::{
 8972            ItemBufferKind, ItemEvent,
 8973            test::{TestItem, TestProjectItem},
 8974        },
 8975    };
 8976    use fs::FakeFs;
 8977    use gpui::{
 8978        DismissEvent, Empty, EventEmitter, FocusHandle, Focusable, Render, TestAppContext,
 8979        UpdateGlobal, VisualTestContext, px,
 8980    };
 8981    use project::{Project, ProjectEntryId};
 8982    use serde_json::json;
 8983    use settings::SettingsStore;
 8984    use util::rel_path::rel_path;
 8985
 8986    #[gpui::test]
 8987    async fn test_tab_disambiguation(cx: &mut TestAppContext) {
 8988        init_test(cx);
 8989
 8990        let fs = FakeFs::new(cx.executor());
 8991        let project = Project::test(fs, [], cx).await;
 8992        let (workspace, cx) =
 8993            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8994
 8995        // Adding an item with no ambiguity renders the tab without detail.
 8996        let item1 = cx.new(|cx| {
 8997            let mut item = TestItem::new(cx);
 8998            item.tab_descriptions = Some(vec!["c", "b1/c", "a/b1/c"]);
 8999            item
 9000        });
 9001        workspace.update_in(cx, |workspace, window, cx| {
 9002            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 9003        });
 9004        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(0)));
 9005
 9006        // Adding an item that creates ambiguity increases the level of detail on
 9007        // both tabs.
 9008        let item2 = cx.new_window_entity(|_window, cx| {
 9009            let mut item = TestItem::new(cx);
 9010            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 9011            item
 9012        });
 9013        workspace.update_in(cx, |workspace, window, cx| {
 9014            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9015        });
 9016        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 9017        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 9018
 9019        // Adding an item that creates ambiguity increases the level of detail only
 9020        // on the ambiguous tabs. In this case, the ambiguity can't be resolved so
 9021        // we stop at the highest detail available.
 9022        let item3 = cx.new(|cx| {
 9023            let mut item = TestItem::new(cx);
 9024            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 9025            item
 9026        });
 9027        workspace.update_in(cx, |workspace, window, cx| {
 9028            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 9029        });
 9030        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 9031        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 9032        item3.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 9033    }
 9034
 9035    #[gpui::test]
 9036    async fn test_tracking_active_path(cx: &mut TestAppContext) {
 9037        init_test(cx);
 9038
 9039        let fs = FakeFs::new(cx.executor());
 9040        fs.insert_tree(
 9041            "/root1",
 9042            json!({
 9043                "one.txt": "",
 9044                "two.txt": "",
 9045            }),
 9046        )
 9047        .await;
 9048        fs.insert_tree(
 9049            "/root2",
 9050            json!({
 9051                "three.txt": "",
 9052            }),
 9053        )
 9054        .await;
 9055
 9056        let project = Project::test(fs, ["root1".as_ref()], cx).await;
 9057        let (workspace, cx) =
 9058            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9059        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9060        let worktree_id = project.update(cx, |project, cx| {
 9061            project.worktrees(cx).next().unwrap().read(cx).id()
 9062        });
 9063
 9064        let item1 = cx.new(|cx| {
 9065            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
 9066        });
 9067        let item2 = cx.new(|cx| {
 9068            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "two.txt", cx)])
 9069        });
 9070
 9071        // Add an item to an empty pane
 9072        workspace.update_in(cx, |workspace, window, cx| {
 9073            workspace.add_item_to_active_pane(Box::new(item1), None, true, window, cx)
 9074        });
 9075        project.update(cx, |project, cx| {
 9076            assert_eq!(
 9077                project.active_entry(),
 9078                project
 9079                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
 9080                    .map(|e| e.id)
 9081            );
 9082        });
 9083        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 9084
 9085        // Add a second item to a non-empty pane
 9086        workspace.update_in(cx, |workspace, window, cx| {
 9087            workspace.add_item_to_active_pane(Box::new(item2), None, true, window, cx)
 9088        });
 9089        assert_eq!(cx.window_title().as_deref(), Some("root1 — two.txt"));
 9090        project.update(cx, |project, cx| {
 9091            assert_eq!(
 9092                project.active_entry(),
 9093                project
 9094                    .entry_for_path(&(worktree_id, rel_path("two.txt")).into(), cx)
 9095                    .map(|e| e.id)
 9096            );
 9097        });
 9098
 9099        // Close the active item
 9100        pane.update_in(cx, |pane, window, cx| {
 9101            pane.close_active_item(&Default::default(), window, cx)
 9102        })
 9103        .await
 9104        .unwrap();
 9105        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 9106        project.update(cx, |project, cx| {
 9107            assert_eq!(
 9108                project.active_entry(),
 9109                project
 9110                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
 9111                    .map(|e| e.id)
 9112            );
 9113        });
 9114
 9115        // Add a project folder
 9116        project
 9117            .update(cx, |project, cx| {
 9118                project.find_or_create_worktree("root2", true, cx)
 9119            })
 9120            .await
 9121            .unwrap();
 9122        assert_eq!(cx.window_title().as_deref(), Some("root1, root2 — one.txt"));
 9123
 9124        // Remove a project folder
 9125        project.update(cx, |project, cx| project.remove_worktree(worktree_id, cx));
 9126        assert_eq!(cx.window_title().as_deref(), Some("root2 — one.txt"));
 9127    }
 9128
 9129    #[gpui::test]
 9130    async fn test_close_window(cx: &mut TestAppContext) {
 9131        init_test(cx);
 9132
 9133        let fs = FakeFs::new(cx.executor());
 9134        fs.insert_tree("/root", json!({ "one": "" })).await;
 9135
 9136        let project = Project::test(fs, ["root".as_ref()], cx).await;
 9137        let (workspace, cx) =
 9138            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9139
 9140        // When there are no dirty items, there's nothing to do.
 9141        let item1 = cx.new(TestItem::new);
 9142        workspace.update_in(cx, |w, window, cx| {
 9143            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx)
 9144        });
 9145        let task = workspace.update_in(cx, |w, window, cx| {
 9146            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9147        });
 9148        assert!(task.await.unwrap());
 9149
 9150        // When there are dirty untitled items, prompt to save each one. If the user
 9151        // cancels any prompt, then abort.
 9152        let item2 = cx.new(|cx| TestItem::new(cx).with_dirty(true));
 9153        let item3 = cx.new(|cx| {
 9154            TestItem::new(cx)
 9155                .with_dirty(true)
 9156                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9157        });
 9158        workspace.update_in(cx, |w, window, cx| {
 9159            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9160            w.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 9161        });
 9162        let task = workspace.update_in(cx, |w, window, cx| {
 9163            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9164        });
 9165        cx.executor().run_until_parked();
 9166        cx.simulate_prompt_answer("Cancel"); // cancel save all
 9167        cx.executor().run_until_parked();
 9168        assert!(!cx.has_pending_prompt());
 9169        assert!(!task.await.unwrap());
 9170    }
 9171
 9172    #[gpui::test]
 9173    async fn test_close_window_with_serializable_items(cx: &mut TestAppContext) {
 9174        init_test(cx);
 9175
 9176        // Register TestItem as a serializable item
 9177        cx.update(|cx| {
 9178            register_serializable_item::<TestItem>(cx);
 9179        });
 9180
 9181        let fs = FakeFs::new(cx.executor());
 9182        fs.insert_tree("/root", json!({ "one": "" })).await;
 9183
 9184        let project = Project::test(fs, ["root".as_ref()], cx).await;
 9185        let (workspace, cx) =
 9186            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9187
 9188        // When there are dirty untitled items, but they can serialize, then there is no prompt.
 9189        let item1 = cx.new(|cx| {
 9190            TestItem::new(cx)
 9191                .with_dirty(true)
 9192                .with_serialize(|| Some(Task::ready(Ok(()))))
 9193        });
 9194        let item2 = cx.new(|cx| {
 9195            TestItem::new(cx)
 9196                .with_dirty(true)
 9197                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9198                .with_serialize(|| Some(Task::ready(Ok(()))))
 9199        });
 9200        workspace.update_in(cx, |w, window, cx| {
 9201            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 9202            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9203        });
 9204        let task = workspace.update_in(cx, |w, window, cx| {
 9205            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9206        });
 9207        assert!(task.await.unwrap());
 9208    }
 9209
 9210    #[gpui::test]
 9211    async fn test_close_pane_items(cx: &mut TestAppContext) {
 9212        init_test(cx);
 9213
 9214        let fs = FakeFs::new(cx.executor());
 9215
 9216        let project = Project::test(fs, None, cx).await;
 9217        let (workspace, cx) =
 9218            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9219
 9220        let item1 = cx.new(|cx| {
 9221            TestItem::new(cx)
 9222                .with_dirty(true)
 9223                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
 9224        });
 9225        let item2 = cx.new(|cx| {
 9226            TestItem::new(cx)
 9227                .with_dirty(true)
 9228                .with_conflict(true)
 9229                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
 9230        });
 9231        let item3 = cx.new(|cx| {
 9232            TestItem::new(cx)
 9233                .with_dirty(true)
 9234                .with_conflict(true)
 9235                .with_project_items(&[dirty_project_item(3, "3.txt", cx)])
 9236        });
 9237        let item4 = cx.new(|cx| {
 9238            TestItem::new(cx).with_dirty(true).with_project_items(&[{
 9239                let project_item = TestProjectItem::new_untitled(cx);
 9240                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9241                project_item
 9242            }])
 9243        });
 9244        let pane = workspace.update_in(cx, |workspace, window, cx| {
 9245            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 9246            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9247            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 9248            workspace.add_item_to_active_pane(Box::new(item4.clone()), None, true, window, cx);
 9249            workspace.active_pane().clone()
 9250        });
 9251
 9252        let close_items = pane.update_in(cx, |pane, window, cx| {
 9253            pane.activate_item(1, true, true, window, cx);
 9254            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 9255            let item1_id = item1.item_id();
 9256            let item3_id = item3.item_id();
 9257            let item4_id = item4.item_id();
 9258            pane.close_items(window, cx, SaveIntent::Close, move |id| {
 9259                [item1_id, item3_id, item4_id].contains(&id)
 9260            })
 9261        });
 9262        cx.executor().run_until_parked();
 9263
 9264        assert!(cx.has_pending_prompt());
 9265        cx.simulate_prompt_answer("Save all");
 9266
 9267        cx.executor().run_until_parked();
 9268
 9269        // Item 1 is saved. There's a prompt to save item 3.
 9270        pane.update(cx, |pane, cx| {
 9271            assert_eq!(item1.read(cx).save_count, 1);
 9272            assert_eq!(item1.read(cx).save_as_count, 0);
 9273            assert_eq!(item1.read(cx).reload_count, 0);
 9274            assert_eq!(pane.items_len(), 3);
 9275            assert_eq!(pane.active_item().unwrap().item_id(), item3.item_id());
 9276        });
 9277        assert!(cx.has_pending_prompt());
 9278
 9279        // Cancel saving item 3.
 9280        cx.simulate_prompt_answer("Discard");
 9281        cx.executor().run_until_parked();
 9282
 9283        // Item 3 is reloaded. There's a prompt to save item 4.
 9284        pane.update(cx, |pane, cx| {
 9285            assert_eq!(item3.read(cx).save_count, 0);
 9286            assert_eq!(item3.read(cx).save_as_count, 0);
 9287            assert_eq!(item3.read(cx).reload_count, 1);
 9288            assert_eq!(pane.items_len(), 2);
 9289            assert_eq!(pane.active_item().unwrap().item_id(), item4.item_id());
 9290        });
 9291
 9292        // There's a prompt for a path for item 4.
 9293        cx.simulate_new_path_selection(|_| Some(Default::default()));
 9294        close_items.await.unwrap();
 9295
 9296        // The requested items are closed.
 9297        pane.update(cx, |pane, cx| {
 9298            assert_eq!(item4.read(cx).save_count, 0);
 9299            assert_eq!(item4.read(cx).save_as_count, 1);
 9300            assert_eq!(item4.read(cx).reload_count, 0);
 9301            assert_eq!(pane.items_len(), 1);
 9302            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 9303        });
 9304    }
 9305
 9306    #[gpui::test]
 9307    async fn test_prompting_to_save_only_on_last_item_for_entry(cx: &mut TestAppContext) {
 9308        init_test(cx);
 9309
 9310        let fs = FakeFs::new(cx.executor());
 9311        let project = Project::test(fs, [], cx).await;
 9312        let (workspace, cx) =
 9313            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9314
 9315        // Create several workspace items with single project entries, and two
 9316        // workspace items with multiple project entries.
 9317        let single_entry_items = (0..=4)
 9318            .map(|project_entry_id| {
 9319                cx.new(|cx| {
 9320                    TestItem::new(cx)
 9321                        .with_dirty(true)
 9322                        .with_project_items(&[dirty_project_item(
 9323                            project_entry_id,
 9324                            &format!("{project_entry_id}.txt"),
 9325                            cx,
 9326                        )])
 9327                })
 9328            })
 9329            .collect::<Vec<_>>();
 9330        let item_2_3 = cx.new(|cx| {
 9331            TestItem::new(cx)
 9332                .with_dirty(true)
 9333                .with_buffer_kind(ItemBufferKind::Multibuffer)
 9334                .with_project_items(&[
 9335                    single_entry_items[2].read(cx).project_items[0].clone(),
 9336                    single_entry_items[3].read(cx).project_items[0].clone(),
 9337                ])
 9338        });
 9339        let item_3_4 = cx.new(|cx| {
 9340            TestItem::new(cx)
 9341                .with_dirty(true)
 9342                .with_buffer_kind(ItemBufferKind::Multibuffer)
 9343                .with_project_items(&[
 9344                    single_entry_items[3].read(cx).project_items[0].clone(),
 9345                    single_entry_items[4].read(cx).project_items[0].clone(),
 9346                ])
 9347        });
 9348
 9349        // Create two panes that contain the following project entries:
 9350        //   left pane:
 9351        //     multi-entry items:   (2, 3)
 9352        //     single-entry items:  0, 2, 3, 4
 9353        //   right pane:
 9354        //     single-entry items:  4, 1
 9355        //     multi-entry items:   (3, 4)
 9356        let (left_pane, right_pane) = workspace.update_in(cx, |workspace, window, cx| {
 9357            let left_pane = workspace.active_pane().clone();
 9358            workspace.add_item_to_active_pane(Box::new(item_2_3.clone()), None, true, window, cx);
 9359            workspace.add_item_to_active_pane(
 9360                single_entry_items[0].boxed_clone(),
 9361                None,
 9362                true,
 9363                window,
 9364                cx,
 9365            );
 9366            workspace.add_item_to_active_pane(
 9367                single_entry_items[2].boxed_clone(),
 9368                None,
 9369                true,
 9370                window,
 9371                cx,
 9372            );
 9373            workspace.add_item_to_active_pane(
 9374                single_entry_items[3].boxed_clone(),
 9375                None,
 9376                true,
 9377                window,
 9378                cx,
 9379            );
 9380            workspace.add_item_to_active_pane(
 9381                single_entry_items[4].boxed_clone(),
 9382                None,
 9383                true,
 9384                window,
 9385                cx,
 9386            );
 9387
 9388            let right_pane =
 9389                workspace.split_and_clone(left_pane.clone(), SplitDirection::Right, window, cx);
 9390
 9391            let boxed_clone = single_entry_items[1].boxed_clone();
 9392            let right_pane = window.spawn(cx, async move |cx| {
 9393                right_pane.await.inspect(|right_pane| {
 9394                    right_pane
 9395                        .update_in(cx, |pane, window, cx| {
 9396                            pane.add_item(boxed_clone, true, true, None, window, cx);
 9397                            pane.add_item(Box::new(item_3_4.clone()), true, true, None, window, cx);
 9398                        })
 9399                        .unwrap();
 9400                })
 9401            });
 9402
 9403            (left_pane, right_pane)
 9404        });
 9405        let right_pane = right_pane.await.unwrap();
 9406        cx.focus(&right_pane);
 9407
 9408        let close = right_pane.update_in(cx, |pane, window, cx| {
 9409            pane.close_all_items(&CloseAllItems::default(), window, cx)
 9410                .unwrap()
 9411        });
 9412        cx.executor().run_until_parked();
 9413
 9414        let msg = cx.pending_prompt().unwrap().0;
 9415        assert!(msg.contains("1.txt"));
 9416        assert!(!msg.contains("2.txt"));
 9417        assert!(!msg.contains("3.txt"));
 9418        assert!(!msg.contains("4.txt"));
 9419
 9420        // With best-effort close, cancelling item 1 keeps it open but items 4
 9421        // and (3,4) still close since their entries exist in left pane.
 9422        cx.simulate_prompt_answer("Cancel");
 9423        close.await;
 9424
 9425        right_pane.read_with(cx, |pane, _| {
 9426            assert_eq!(pane.items_len(), 1);
 9427        });
 9428
 9429        // Remove item 3 from left pane, making (2,3) the only item with entry 3.
 9430        left_pane
 9431            .update_in(cx, |left_pane, window, cx| {
 9432                left_pane.close_item_by_id(
 9433                    single_entry_items[3].entity_id(),
 9434                    SaveIntent::Skip,
 9435                    window,
 9436                    cx,
 9437                )
 9438            })
 9439            .await
 9440            .unwrap();
 9441
 9442        let close = left_pane.update_in(cx, |pane, window, cx| {
 9443            pane.close_all_items(&CloseAllItems::default(), window, cx)
 9444                .unwrap()
 9445        });
 9446        cx.executor().run_until_parked();
 9447
 9448        let details = cx.pending_prompt().unwrap().1;
 9449        assert!(details.contains("0.txt"));
 9450        assert!(details.contains("3.txt"));
 9451        assert!(details.contains("4.txt"));
 9452        // Ideally 2.txt wouldn't appear since entry 2 still exists in item 2.
 9453        // But we can only save whole items, so saving (2,3) for entry 3 includes 2.
 9454        // assert!(!details.contains("2.txt"));
 9455
 9456        cx.simulate_prompt_answer("Save all");
 9457        cx.executor().run_until_parked();
 9458        close.await;
 9459
 9460        left_pane.read_with(cx, |pane, _| {
 9461            assert_eq!(pane.items_len(), 0);
 9462        });
 9463    }
 9464
 9465    #[gpui::test]
 9466    async fn test_autosave(cx: &mut gpui::TestAppContext) {
 9467        init_test(cx);
 9468
 9469        let fs = FakeFs::new(cx.executor());
 9470        let project = Project::test(fs, [], cx).await;
 9471        let (workspace, cx) =
 9472            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9473        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9474
 9475        let item = cx.new(|cx| {
 9476            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9477        });
 9478        let item_id = item.entity_id();
 9479        workspace.update_in(cx, |workspace, window, cx| {
 9480            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9481        });
 9482
 9483        // Autosave on window change.
 9484        item.update(cx, |item, cx| {
 9485            SettingsStore::update_global(cx, |settings, cx| {
 9486                settings.update_user_settings(cx, |settings| {
 9487                    settings.workspace.autosave = Some(AutosaveSetting::OnWindowChange);
 9488                })
 9489            });
 9490            item.is_dirty = true;
 9491        });
 9492
 9493        // Deactivating the window saves the file.
 9494        cx.deactivate_window();
 9495        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 9496
 9497        // Re-activating the window doesn't save the file.
 9498        cx.update(|window, _| window.activate_window());
 9499        cx.executor().run_until_parked();
 9500        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 9501
 9502        // Autosave on focus change.
 9503        item.update_in(cx, |item, window, cx| {
 9504            cx.focus_self(window);
 9505            SettingsStore::update_global(cx, |settings, cx| {
 9506                settings.update_user_settings(cx, |settings| {
 9507                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
 9508                })
 9509            });
 9510            item.is_dirty = true;
 9511        });
 9512        // Blurring the item saves the file.
 9513        item.update_in(cx, |_, window, _| window.blur());
 9514        cx.executor().run_until_parked();
 9515        item.read_with(cx, |item, _| assert_eq!(item.save_count, 2));
 9516
 9517        // Deactivating the window still saves the file.
 9518        item.update_in(cx, |item, window, cx| {
 9519            cx.focus_self(window);
 9520            item.is_dirty = true;
 9521        });
 9522        cx.deactivate_window();
 9523        item.update(cx, |item, _| assert_eq!(item.save_count, 3));
 9524
 9525        // Autosave after delay.
 9526        item.update(cx, |item, cx| {
 9527            SettingsStore::update_global(cx, |settings, cx| {
 9528                settings.update_user_settings(cx, |settings| {
 9529                    settings.workspace.autosave = Some(AutosaveSetting::AfterDelay {
 9530                        milliseconds: 500.into(),
 9531                    });
 9532                })
 9533            });
 9534            item.is_dirty = true;
 9535            cx.emit(ItemEvent::Edit);
 9536        });
 9537
 9538        // Delay hasn't fully expired, so the file is still dirty and unsaved.
 9539        cx.executor().advance_clock(Duration::from_millis(250));
 9540        item.read_with(cx, |item, _| assert_eq!(item.save_count, 3));
 9541
 9542        // After delay expires, the file is saved.
 9543        cx.executor().advance_clock(Duration::from_millis(250));
 9544        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
 9545
 9546        // Autosave after delay, should save earlier than delay if tab is closed
 9547        item.update(cx, |item, cx| {
 9548            item.is_dirty = true;
 9549            cx.emit(ItemEvent::Edit);
 9550        });
 9551        cx.executor().advance_clock(Duration::from_millis(250));
 9552        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
 9553
 9554        // // Ensure auto save with delay saves the item on close, even if the timer hasn't yet run out.
 9555        pane.update_in(cx, |pane, window, cx| {
 9556            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9557        })
 9558        .await
 9559        .unwrap();
 9560        assert!(!cx.has_pending_prompt());
 9561        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 9562
 9563        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
 9564        workspace.update_in(cx, |workspace, window, cx| {
 9565            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9566        });
 9567        item.update_in(cx, |item, _window, cx| {
 9568            item.is_dirty = true;
 9569            for project_item in &mut item.project_items {
 9570                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9571            }
 9572        });
 9573        cx.run_until_parked();
 9574        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 9575
 9576        // Autosave on focus change, ensuring closing the tab counts as such.
 9577        item.update(cx, |item, cx| {
 9578            SettingsStore::update_global(cx, |settings, cx| {
 9579                settings.update_user_settings(cx, |settings| {
 9580                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
 9581                })
 9582            });
 9583            item.is_dirty = true;
 9584            for project_item in &mut item.project_items {
 9585                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9586            }
 9587        });
 9588
 9589        pane.update_in(cx, |pane, window, cx| {
 9590            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9591        })
 9592        .await
 9593        .unwrap();
 9594        assert!(!cx.has_pending_prompt());
 9595        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9596
 9597        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
 9598        workspace.update_in(cx, |workspace, window, cx| {
 9599            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9600        });
 9601        item.update_in(cx, |item, window, cx| {
 9602            item.project_items[0].update(cx, |item, _| {
 9603                item.entry_id = None;
 9604            });
 9605            item.is_dirty = true;
 9606            window.blur();
 9607        });
 9608        cx.run_until_parked();
 9609        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9610
 9611        // Ensure autosave is prevented for deleted files also when closing the buffer.
 9612        let _close_items = pane.update_in(cx, |pane, window, cx| {
 9613            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9614        });
 9615        cx.run_until_parked();
 9616        assert!(cx.has_pending_prompt());
 9617        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9618    }
 9619
 9620    #[gpui::test]
 9621    async fn test_pane_navigation(cx: &mut gpui::TestAppContext) {
 9622        init_test(cx);
 9623
 9624        let fs = FakeFs::new(cx.executor());
 9625
 9626        let project = Project::test(fs, [], cx).await;
 9627        let (workspace, cx) =
 9628            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9629
 9630        let item = cx.new(|cx| {
 9631            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9632        });
 9633        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9634        let toolbar = pane.read_with(cx, |pane, _| pane.toolbar().clone());
 9635        let toolbar_notify_count = Rc::new(RefCell::new(0));
 9636
 9637        workspace.update_in(cx, |workspace, window, cx| {
 9638            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9639            let toolbar_notification_count = toolbar_notify_count.clone();
 9640            cx.observe_in(&toolbar, window, move |_, _, _, _| {
 9641                *toolbar_notification_count.borrow_mut() += 1
 9642            })
 9643            .detach();
 9644        });
 9645
 9646        pane.read_with(cx, |pane, _| {
 9647            assert!(!pane.can_navigate_backward());
 9648            assert!(!pane.can_navigate_forward());
 9649        });
 9650
 9651        item.update_in(cx, |item, _, cx| {
 9652            item.set_state("one".to_string(), cx);
 9653        });
 9654
 9655        // Toolbar must be notified to re-render the navigation buttons
 9656        assert_eq!(*toolbar_notify_count.borrow(), 1);
 9657
 9658        pane.read_with(cx, |pane, _| {
 9659            assert!(pane.can_navigate_backward());
 9660            assert!(!pane.can_navigate_forward());
 9661        });
 9662
 9663        workspace
 9664            .update_in(cx, |workspace, window, cx| {
 9665                workspace.go_back(pane.downgrade(), window, cx)
 9666            })
 9667            .await
 9668            .unwrap();
 9669
 9670        assert_eq!(*toolbar_notify_count.borrow(), 2);
 9671        pane.read_with(cx, |pane, _| {
 9672            assert!(!pane.can_navigate_backward());
 9673            assert!(pane.can_navigate_forward());
 9674        });
 9675    }
 9676
 9677    #[gpui::test]
 9678    async fn test_toggle_docks_and_panels(cx: &mut gpui::TestAppContext) {
 9679        init_test(cx);
 9680        let fs = FakeFs::new(cx.executor());
 9681
 9682        let project = Project::test(fs, [], cx).await;
 9683        let (workspace, cx) =
 9684            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9685
 9686        let panel = workspace.update_in(cx, |workspace, window, cx| {
 9687            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
 9688            workspace.add_panel(panel.clone(), window, cx);
 9689
 9690            workspace
 9691                .right_dock()
 9692                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
 9693
 9694            panel
 9695        });
 9696
 9697        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9698        pane.update_in(cx, |pane, window, cx| {
 9699            let item = cx.new(TestItem::new);
 9700            pane.add_item(Box::new(item), true, true, None, window, cx);
 9701        });
 9702
 9703        // Transfer focus from center to panel
 9704        workspace.update_in(cx, |workspace, window, cx| {
 9705            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9706        });
 9707
 9708        workspace.update_in(cx, |workspace, window, cx| {
 9709            assert!(workspace.right_dock().read(cx).is_open());
 9710            assert!(!panel.is_zoomed(window, cx));
 9711            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9712        });
 9713
 9714        // Transfer focus from panel to center
 9715        workspace.update_in(cx, |workspace, window, cx| {
 9716            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9717        });
 9718
 9719        workspace.update_in(cx, |workspace, window, cx| {
 9720            assert!(workspace.right_dock().read(cx).is_open());
 9721            assert!(!panel.is_zoomed(window, cx));
 9722            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9723        });
 9724
 9725        // Close the dock
 9726        workspace.update_in(cx, |workspace, window, cx| {
 9727            workspace.toggle_dock(DockPosition::Right, window, cx);
 9728        });
 9729
 9730        workspace.update_in(cx, |workspace, window, cx| {
 9731            assert!(!workspace.right_dock().read(cx).is_open());
 9732            assert!(!panel.is_zoomed(window, cx));
 9733            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9734        });
 9735
 9736        // Open the dock
 9737        workspace.update_in(cx, |workspace, window, cx| {
 9738            workspace.toggle_dock(DockPosition::Right, window, cx);
 9739        });
 9740
 9741        workspace.update_in(cx, |workspace, window, cx| {
 9742            assert!(workspace.right_dock().read(cx).is_open());
 9743            assert!(!panel.is_zoomed(window, cx));
 9744            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9745        });
 9746
 9747        // Focus and zoom panel
 9748        panel.update_in(cx, |panel, window, cx| {
 9749            cx.focus_self(window);
 9750            panel.set_zoomed(true, window, cx)
 9751        });
 9752
 9753        workspace.update_in(cx, |workspace, window, cx| {
 9754            assert!(workspace.right_dock().read(cx).is_open());
 9755            assert!(panel.is_zoomed(window, cx));
 9756            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9757        });
 9758
 9759        // Transfer focus to the center closes the dock
 9760        workspace.update_in(cx, |workspace, window, cx| {
 9761            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9762        });
 9763
 9764        workspace.update_in(cx, |workspace, window, cx| {
 9765            assert!(!workspace.right_dock().read(cx).is_open());
 9766            assert!(panel.is_zoomed(window, cx));
 9767            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9768        });
 9769
 9770        // Transferring focus back to the panel keeps it zoomed
 9771        workspace.update_in(cx, |workspace, window, cx| {
 9772            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9773        });
 9774
 9775        workspace.update_in(cx, |workspace, window, cx| {
 9776            assert!(workspace.right_dock().read(cx).is_open());
 9777            assert!(panel.is_zoomed(window, cx));
 9778            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9779        });
 9780
 9781        // Close the dock while it is zoomed
 9782        workspace.update_in(cx, |workspace, window, cx| {
 9783            workspace.toggle_dock(DockPosition::Right, window, cx)
 9784        });
 9785
 9786        workspace.update_in(cx, |workspace, window, cx| {
 9787            assert!(!workspace.right_dock().read(cx).is_open());
 9788            assert!(panel.is_zoomed(window, cx));
 9789            assert!(workspace.zoomed.is_none());
 9790            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9791        });
 9792
 9793        // Opening the dock, when it's zoomed, retains focus
 9794        workspace.update_in(cx, |workspace, window, cx| {
 9795            workspace.toggle_dock(DockPosition::Right, window, cx)
 9796        });
 9797
 9798        workspace.update_in(cx, |workspace, window, cx| {
 9799            assert!(workspace.right_dock().read(cx).is_open());
 9800            assert!(panel.is_zoomed(window, cx));
 9801            assert!(workspace.zoomed.is_some());
 9802            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9803        });
 9804
 9805        // Unzoom and close the panel, zoom the active pane.
 9806        panel.update_in(cx, |panel, window, cx| panel.set_zoomed(false, window, cx));
 9807        workspace.update_in(cx, |workspace, window, cx| {
 9808            workspace.toggle_dock(DockPosition::Right, window, cx)
 9809        });
 9810        pane.update_in(cx, |pane, window, cx| {
 9811            pane.toggle_zoom(&Default::default(), window, cx)
 9812        });
 9813
 9814        // Opening a dock unzooms the pane.
 9815        workspace.update_in(cx, |workspace, window, cx| {
 9816            workspace.toggle_dock(DockPosition::Right, window, cx)
 9817        });
 9818        workspace.update_in(cx, |workspace, window, cx| {
 9819            let pane = pane.read(cx);
 9820            assert!(!pane.is_zoomed());
 9821            assert!(!pane.focus_handle(cx).is_focused(window));
 9822            assert!(workspace.right_dock().read(cx).is_open());
 9823            assert!(workspace.zoomed.is_none());
 9824        });
 9825    }
 9826
 9827    #[gpui::test]
 9828    async fn test_pane_zoom_in_out(cx: &mut TestAppContext) {
 9829        init_test(cx);
 9830        let fs = FakeFs::new(cx.executor());
 9831
 9832        let project = Project::test(fs, [], cx).await;
 9833        let (workspace, cx) =
 9834            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9835
 9836        let pane = workspace.update_in(cx, |workspace, _window, _cx| {
 9837            workspace.active_pane().clone()
 9838        });
 9839
 9840        // Add an item to the pane so it can be zoomed
 9841        workspace.update_in(cx, |workspace, window, cx| {
 9842            let item = cx.new(TestItem::new);
 9843            workspace.add_item(pane.clone(), Box::new(item), None, true, true, window, cx);
 9844        });
 9845
 9846        // Initially not zoomed
 9847        workspace.update_in(cx, |workspace, _window, cx| {
 9848            assert!(!pane.read(cx).is_zoomed(), "Pane starts unzoomed");
 9849            assert!(
 9850                workspace.zoomed.is_none(),
 9851                "Workspace should track no zoomed pane"
 9852            );
 9853            assert!(pane.read(cx).items_len() > 0, "Pane should have items");
 9854        });
 9855
 9856        // Zoom In
 9857        pane.update_in(cx, |pane, window, cx| {
 9858            pane.zoom_in(&crate::ZoomIn, window, cx);
 9859        });
 9860
 9861        workspace.update_in(cx, |workspace, window, cx| {
 9862            assert!(
 9863                pane.read(cx).is_zoomed(),
 9864                "Pane should be zoomed after ZoomIn"
 9865            );
 9866            assert!(
 9867                workspace.zoomed.is_some(),
 9868                "Workspace should track the zoomed pane"
 9869            );
 9870            assert!(
 9871                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
 9872                "ZoomIn should focus the pane"
 9873            );
 9874        });
 9875
 9876        // Zoom In again is a no-op
 9877        pane.update_in(cx, |pane, window, cx| {
 9878            pane.zoom_in(&crate::ZoomIn, window, cx);
 9879        });
 9880
 9881        workspace.update_in(cx, |workspace, window, cx| {
 9882            assert!(pane.read(cx).is_zoomed(), "Second ZoomIn keeps pane zoomed");
 9883            assert!(
 9884                workspace.zoomed.is_some(),
 9885                "Workspace still tracks zoomed pane"
 9886            );
 9887            assert!(
 9888                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
 9889                "Pane remains focused after repeated ZoomIn"
 9890            );
 9891        });
 9892
 9893        // Zoom Out
 9894        pane.update_in(cx, |pane, window, cx| {
 9895            pane.zoom_out(&crate::ZoomOut, window, cx);
 9896        });
 9897
 9898        workspace.update_in(cx, |workspace, _window, cx| {
 9899            assert!(
 9900                !pane.read(cx).is_zoomed(),
 9901                "Pane should unzoom after ZoomOut"
 9902            );
 9903            assert!(
 9904                workspace.zoomed.is_none(),
 9905                "Workspace clears zoom tracking after ZoomOut"
 9906            );
 9907        });
 9908
 9909        // Zoom Out again is a no-op
 9910        pane.update_in(cx, |pane, window, cx| {
 9911            pane.zoom_out(&crate::ZoomOut, window, cx);
 9912        });
 9913
 9914        workspace.update_in(cx, |workspace, _window, cx| {
 9915            assert!(
 9916                !pane.read(cx).is_zoomed(),
 9917                "Second ZoomOut keeps pane unzoomed"
 9918            );
 9919            assert!(
 9920                workspace.zoomed.is_none(),
 9921                "Workspace remains without zoomed pane"
 9922            );
 9923        });
 9924    }
 9925
 9926    #[gpui::test]
 9927    async fn test_toggle_all_docks(cx: &mut gpui::TestAppContext) {
 9928        init_test(cx);
 9929        let fs = FakeFs::new(cx.executor());
 9930
 9931        let project = Project::test(fs, [], cx).await;
 9932        let (workspace, cx) =
 9933            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9934        workspace.update_in(cx, |workspace, window, cx| {
 9935            // Open two docks
 9936            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9937            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9938
 9939            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9940            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9941
 9942            assert!(left_dock.read(cx).is_open());
 9943            assert!(right_dock.read(cx).is_open());
 9944        });
 9945
 9946        workspace.update_in(cx, |workspace, window, cx| {
 9947            // Toggle all docks - should close both
 9948            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9949
 9950            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9951            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9952            assert!(!left_dock.read(cx).is_open());
 9953            assert!(!right_dock.read(cx).is_open());
 9954        });
 9955
 9956        workspace.update_in(cx, |workspace, window, cx| {
 9957            // Toggle again - should reopen both
 9958            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9959
 9960            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9961            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9962            assert!(left_dock.read(cx).is_open());
 9963            assert!(right_dock.read(cx).is_open());
 9964        });
 9965    }
 9966
 9967    #[gpui::test]
 9968    async fn test_toggle_all_with_manual_close(cx: &mut gpui::TestAppContext) {
 9969        init_test(cx);
 9970        let fs = FakeFs::new(cx.executor());
 9971
 9972        let project = Project::test(fs, [], cx).await;
 9973        let (workspace, cx) =
 9974            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9975        workspace.update_in(cx, |workspace, window, cx| {
 9976            // Open two docks
 9977            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9978            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9979
 9980            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9981            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9982
 9983            assert!(left_dock.read(cx).is_open());
 9984            assert!(right_dock.read(cx).is_open());
 9985        });
 9986
 9987        workspace.update_in(cx, |workspace, window, cx| {
 9988            // Close them manually
 9989            workspace.toggle_dock(DockPosition::Left, window, cx);
 9990            workspace.toggle_dock(DockPosition::Right, window, cx);
 9991
 9992            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9993            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9994            assert!(!left_dock.read(cx).is_open());
 9995            assert!(!right_dock.read(cx).is_open());
 9996        });
 9997
 9998        workspace.update_in(cx, |workspace, window, cx| {
 9999            // Toggle all docks - only last closed (right dock) should reopen
10000            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10001
10002            let left_dock = workspace.dock_at_position(DockPosition::Left);
10003            let right_dock = workspace.dock_at_position(DockPosition::Right);
10004            assert!(!left_dock.read(cx).is_open());
10005            assert!(right_dock.read(cx).is_open());
10006        });
10007    }
10008
10009    #[gpui::test]
10010    async fn test_toggle_all_docks_after_dock_move(cx: &mut gpui::TestAppContext) {
10011        init_test(cx);
10012        let fs = FakeFs::new(cx.executor());
10013        let project = Project::test(fs, [], cx).await;
10014        let (workspace, cx) =
10015            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10016
10017        // Open two docks (left and right) with one panel each
10018        let (left_panel, right_panel) = workspace.update_in(cx, |workspace, window, cx| {
10019            let left_panel = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
10020            workspace.add_panel(left_panel.clone(), window, cx);
10021
10022            let right_panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
10023            workspace.add_panel(right_panel.clone(), window, cx);
10024
10025            workspace.toggle_dock(DockPosition::Left, window, cx);
10026            workspace.toggle_dock(DockPosition::Right, window, cx);
10027
10028            // Verify initial state
10029            assert!(
10030                workspace.left_dock().read(cx).is_open(),
10031                "Left dock should be open"
10032            );
10033            assert_eq!(
10034                workspace
10035                    .left_dock()
10036                    .read(cx)
10037                    .visible_panel()
10038                    .unwrap()
10039                    .panel_id(),
10040                left_panel.panel_id(),
10041                "Left panel should be visible in left dock"
10042            );
10043            assert!(
10044                workspace.right_dock().read(cx).is_open(),
10045                "Right dock should be open"
10046            );
10047            assert_eq!(
10048                workspace
10049                    .right_dock()
10050                    .read(cx)
10051                    .visible_panel()
10052                    .unwrap()
10053                    .panel_id(),
10054                right_panel.panel_id(),
10055                "Right panel should be visible in right dock"
10056            );
10057            assert!(
10058                !workspace.bottom_dock().read(cx).is_open(),
10059                "Bottom dock should be closed"
10060            );
10061
10062            (left_panel, right_panel)
10063        });
10064
10065        // Focus the left panel and move it to the next position (bottom dock)
10066        workspace.update_in(cx, |workspace, window, cx| {
10067            workspace.toggle_panel_focus::<TestPanel>(window, cx); // Focus left panel
10068            assert!(
10069                left_panel.read(cx).focus_handle(cx).is_focused(window),
10070                "Left panel should be focused"
10071            );
10072        });
10073
10074        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10075
10076        // Verify the left panel has moved to the bottom dock, and the bottom dock is now open
10077        workspace.update(cx, |workspace, cx| {
10078            assert!(
10079                !workspace.left_dock().read(cx).is_open(),
10080                "Left dock should be closed"
10081            );
10082            assert!(
10083                workspace.bottom_dock().read(cx).is_open(),
10084                "Bottom dock should now be open"
10085            );
10086            assert_eq!(
10087                left_panel.read(cx).position,
10088                DockPosition::Bottom,
10089                "Left panel should now be in the bottom dock"
10090            );
10091            assert_eq!(
10092                workspace
10093                    .bottom_dock()
10094                    .read(cx)
10095                    .visible_panel()
10096                    .unwrap()
10097                    .panel_id(),
10098                left_panel.panel_id(),
10099                "Left panel should be the visible panel in the bottom dock"
10100            );
10101        });
10102
10103        // Toggle all docks off
10104        workspace.update_in(cx, |workspace, window, cx| {
10105            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10106            assert!(
10107                !workspace.left_dock().read(cx).is_open(),
10108                "Left dock should be closed"
10109            );
10110            assert!(
10111                !workspace.right_dock().read(cx).is_open(),
10112                "Right dock should be closed"
10113            );
10114            assert!(
10115                !workspace.bottom_dock().read(cx).is_open(),
10116                "Bottom dock should be closed"
10117            );
10118        });
10119
10120        // Toggle all docks back on and verify positions are restored
10121        workspace.update_in(cx, |workspace, window, cx| {
10122            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10123            assert!(
10124                !workspace.left_dock().read(cx).is_open(),
10125                "Left dock should remain closed"
10126            );
10127            assert!(
10128                workspace.right_dock().read(cx).is_open(),
10129                "Right dock should remain open"
10130            );
10131            assert!(
10132                workspace.bottom_dock().read(cx).is_open(),
10133                "Bottom dock should remain open"
10134            );
10135            assert_eq!(
10136                left_panel.read(cx).position,
10137                DockPosition::Bottom,
10138                "Left panel should remain in the bottom dock"
10139            );
10140            assert_eq!(
10141                right_panel.read(cx).position,
10142                DockPosition::Right,
10143                "Right panel should remain in the right dock"
10144            );
10145            assert_eq!(
10146                workspace
10147                    .bottom_dock()
10148                    .read(cx)
10149                    .visible_panel()
10150                    .unwrap()
10151                    .panel_id(),
10152                left_panel.panel_id(),
10153                "Left panel should be the visible panel in the right dock"
10154            );
10155        });
10156    }
10157
10158    #[gpui::test]
10159    async fn test_join_pane_into_next(cx: &mut gpui::TestAppContext) {
10160        init_test(cx);
10161
10162        let fs = FakeFs::new(cx.executor());
10163
10164        let project = Project::test(fs, None, cx).await;
10165        let (workspace, cx) =
10166            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10167
10168        // Let's arrange the panes like this:
10169        //
10170        // +-----------------------+
10171        // |         top           |
10172        // +------+--------+-------+
10173        // | left | center | right |
10174        // +------+--------+-------+
10175        // |        bottom         |
10176        // +-----------------------+
10177
10178        let top_item = cx.new(|cx| {
10179            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "top.txt", cx)])
10180        });
10181        let bottom_item = cx.new(|cx| {
10182            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "bottom.txt", cx)])
10183        });
10184        let left_item = cx.new(|cx| {
10185            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "left.txt", cx)])
10186        });
10187        let right_item = cx.new(|cx| {
10188            TestItem::new(cx).with_project_items(&[TestProjectItem::new(4, "right.txt", cx)])
10189        });
10190        let center_item = cx.new(|cx| {
10191            TestItem::new(cx).with_project_items(&[TestProjectItem::new(5, "center.txt", cx)])
10192        });
10193
10194        let top_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10195            let top_pane_id = workspace.active_pane().entity_id();
10196            workspace.add_item_to_active_pane(Box::new(top_item.clone()), None, false, window, cx);
10197            workspace.split_pane(
10198                workspace.active_pane().clone(),
10199                SplitDirection::Down,
10200                window,
10201                cx,
10202            );
10203            top_pane_id
10204        });
10205        let bottom_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10206            let bottom_pane_id = workspace.active_pane().entity_id();
10207            workspace.add_item_to_active_pane(
10208                Box::new(bottom_item.clone()),
10209                None,
10210                false,
10211                window,
10212                cx,
10213            );
10214            workspace.split_pane(
10215                workspace.active_pane().clone(),
10216                SplitDirection::Up,
10217                window,
10218                cx,
10219            );
10220            bottom_pane_id
10221        });
10222        let left_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10223            let left_pane_id = workspace.active_pane().entity_id();
10224            workspace.add_item_to_active_pane(Box::new(left_item.clone()), None, false, window, cx);
10225            workspace.split_pane(
10226                workspace.active_pane().clone(),
10227                SplitDirection::Right,
10228                window,
10229                cx,
10230            );
10231            left_pane_id
10232        });
10233        let right_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10234            let right_pane_id = workspace.active_pane().entity_id();
10235            workspace.add_item_to_active_pane(
10236                Box::new(right_item.clone()),
10237                None,
10238                false,
10239                window,
10240                cx,
10241            );
10242            workspace.split_pane(
10243                workspace.active_pane().clone(),
10244                SplitDirection::Left,
10245                window,
10246                cx,
10247            );
10248            right_pane_id
10249        });
10250        let center_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10251            let center_pane_id = workspace.active_pane().entity_id();
10252            workspace.add_item_to_active_pane(
10253                Box::new(center_item.clone()),
10254                None,
10255                false,
10256                window,
10257                cx,
10258            );
10259            center_pane_id
10260        });
10261        cx.executor().run_until_parked();
10262
10263        workspace.update_in(cx, |workspace, window, cx| {
10264            assert_eq!(center_pane_id, workspace.active_pane().entity_id());
10265
10266            // Join into next from center pane into right
10267            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10268        });
10269
10270        workspace.update_in(cx, |workspace, window, cx| {
10271            let active_pane = workspace.active_pane();
10272            assert_eq!(right_pane_id, active_pane.entity_id());
10273            assert_eq!(2, active_pane.read(cx).items_len());
10274            let item_ids_in_pane =
10275                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10276            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10277            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10278
10279            // Join into next from right pane into bottom
10280            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10281        });
10282
10283        workspace.update_in(cx, |workspace, window, cx| {
10284            let active_pane = workspace.active_pane();
10285            assert_eq!(bottom_pane_id, active_pane.entity_id());
10286            assert_eq!(3, active_pane.read(cx).items_len());
10287            let item_ids_in_pane =
10288                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10289            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10290            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10291            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
10292
10293            // Join into next from bottom pane into left
10294            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10295        });
10296
10297        workspace.update_in(cx, |workspace, window, cx| {
10298            let active_pane = workspace.active_pane();
10299            assert_eq!(left_pane_id, active_pane.entity_id());
10300            assert_eq!(4, active_pane.read(cx).items_len());
10301            let item_ids_in_pane =
10302                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10303            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10304            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10305            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
10306            assert!(item_ids_in_pane.contains(&left_item.item_id()));
10307
10308            // Join into next from left pane into top
10309            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10310        });
10311
10312        workspace.update_in(cx, |workspace, window, cx| {
10313            let active_pane = workspace.active_pane();
10314            assert_eq!(top_pane_id, active_pane.entity_id());
10315            assert_eq!(5, active_pane.read(cx).items_len());
10316            let item_ids_in_pane =
10317                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10318            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10319            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10320            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
10321            assert!(item_ids_in_pane.contains(&left_item.item_id()));
10322            assert!(item_ids_in_pane.contains(&top_item.item_id()));
10323
10324            // Single pane left: no-op
10325            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx)
10326        });
10327
10328        workspace.update(cx, |workspace, _cx| {
10329            let active_pane = workspace.active_pane();
10330            assert_eq!(top_pane_id, active_pane.entity_id());
10331        });
10332    }
10333
10334    fn add_an_item_to_active_pane(
10335        cx: &mut VisualTestContext,
10336        workspace: &Entity<Workspace>,
10337        item_id: u64,
10338    ) -> Entity<TestItem> {
10339        let item = cx.new(|cx| {
10340            TestItem::new(cx).with_project_items(&[TestProjectItem::new(
10341                item_id,
10342                "item{item_id}.txt",
10343                cx,
10344            )])
10345        });
10346        workspace.update_in(cx, |workspace, window, cx| {
10347            workspace.add_item_to_active_pane(Box::new(item.clone()), None, false, window, cx);
10348        });
10349        item
10350    }
10351
10352    fn split_pane(cx: &mut VisualTestContext, workspace: &Entity<Workspace>) -> Entity<Pane> {
10353        workspace.update_in(cx, |workspace, window, cx| {
10354            workspace.split_pane(
10355                workspace.active_pane().clone(),
10356                SplitDirection::Right,
10357                window,
10358                cx,
10359            )
10360        })
10361    }
10362
10363    #[gpui::test]
10364    async fn test_join_all_panes(cx: &mut gpui::TestAppContext) {
10365        init_test(cx);
10366        let fs = FakeFs::new(cx.executor());
10367        let project = Project::test(fs, None, cx).await;
10368        let (workspace, cx) =
10369            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10370
10371        add_an_item_to_active_pane(cx, &workspace, 1);
10372        split_pane(cx, &workspace);
10373        add_an_item_to_active_pane(cx, &workspace, 2);
10374        split_pane(cx, &workspace); // empty pane
10375        split_pane(cx, &workspace);
10376        let last_item = add_an_item_to_active_pane(cx, &workspace, 3);
10377
10378        cx.executor().run_until_parked();
10379
10380        workspace.update(cx, |workspace, cx| {
10381            let num_panes = workspace.panes().len();
10382            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
10383            let active_item = workspace
10384                .active_pane()
10385                .read(cx)
10386                .active_item()
10387                .expect("item is in focus");
10388
10389            assert_eq!(num_panes, 4);
10390            assert_eq!(num_items_in_current_pane, 1);
10391            assert_eq!(active_item.item_id(), last_item.item_id());
10392        });
10393
10394        workspace.update_in(cx, |workspace, window, cx| {
10395            workspace.join_all_panes(window, cx);
10396        });
10397
10398        workspace.update(cx, |workspace, cx| {
10399            let num_panes = workspace.panes().len();
10400            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
10401            let active_item = workspace
10402                .active_pane()
10403                .read(cx)
10404                .active_item()
10405                .expect("item is in focus");
10406
10407            assert_eq!(num_panes, 1);
10408            assert_eq!(num_items_in_current_pane, 3);
10409            assert_eq!(active_item.item_id(), last_item.item_id());
10410        });
10411    }
10412    struct TestModal(FocusHandle);
10413
10414    impl TestModal {
10415        fn new(_: &mut Window, cx: &mut Context<Self>) -> Self {
10416            Self(cx.focus_handle())
10417        }
10418    }
10419
10420    impl EventEmitter<DismissEvent> for TestModal {}
10421
10422    impl Focusable for TestModal {
10423        fn focus_handle(&self, _cx: &App) -> FocusHandle {
10424            self.0.clone()
10425        }
10426    }
10427
10428    impl ModalView for TestModal {}
10429
10430    impl Render for TestModal {
10431        fn render(
10432            &mut self,
10433            _window: &mut Window,
10434            _cx: &mut Context<TestModal>,
10435        ) -> impl IntoElement {
10436            div().track_focus(&self.0)
10437        }
10438    }
10439
10440    #[gpui::test]
10441    async fn test_panels(cx: &mut gpui::TestAppContext) {
10442        init_test(cx);
10443        let fs = FakeFs::new(cx.executor());
10444
10445        let project = Project::test(fs, [], cx).await;
10446        let (workspace, cx) =
10447            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10448
10449        let (panel_1, panel_2) = workspace.update_in(cx, |workspace, window, cx| {
10450            let panel_1 = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
10451            workspace.add_panel(panel_1.clone(), window, cx);
10452            workspace.toggle_dock(DockPosition::Left, window, cx);
10453            let panel_2 = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
10454            workspace.add_panel(panel_2.clone(), window, cx);
10455            workspace.toggle_dock(DockPosition::Right, window, cx);
10456
10457            let left_dock = workspace.left_dock();
10458            assert_eq!(
10459                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10460                panel_1.panel_id()
10461            );
10462            assert_eq!(
10463                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
10464                panel_1.size(window, cx)
10465            );
10466
10467            left_dock.update(cx, |left_dock, cx| {
10468                left_dock.resize_active_panel(Some(px(1337.)), window, cx)
10469            });
10470            assert_eq!(
10471                workspace
10472                    .right_dock()
10473                    .read(cx)
10474                    .visible_panel()
10475                    .unwrap()
10476                    .panel_id(),
10477                panel_2.panel_id(),
10478            );
10479
10480            (panel_1, panel_2)
10481        });
10482
10483        // Move panel_1 to the right
10484        panel_1.update_in(cx, |panel_1, window, cx| {
10485            panel_1.set_position(DockPosition::Right, window, cx)
10486        });
10487
10488        workspace.update_in(cx, |workspace, window, cx| {
10489            // Since panel_1 was visible on the left, it should now be visible now that it's been moved to the right.
10490            // Since it was the only panel on the left, the left dock should now be closed.
10491            assert!(!workspace.left_dock().read(cx).is_open());
10492            assert!(workspace.left_dock().read(cx).visible_panel().is_none());
10493            let right_dock = workspace.right_dock();
10494            assert_eq!(
10495                right_dock.read(cx).visible_panel().unwrap().panel_id(),
10496                panel_1.panel_id()
10497            );
10498            assert_eq!(
10499                right_dock.read(cx).active_panel_size(window, cx).unwrap(),
10500                px(1337.)
10501            );
10502
10503            // Now we move panel_2 to the left
10504            panel_2.set_position(DockPosition::Left, window, cx);
10505        });
10506
10507        workspace.update(cx, |workspace, cx| {
10508            // Since panel_2 was not visible on the right, we don't open the left dock.
10509            assert!(!workspace.left_dock().read(cx).is_open());
10510            // And the right dock is unaffected in its displaying of panel_1
10511            assert!(workspace.right_dock().read(cx).is_open());
10512            assert_eq!(
10513                workspace
10514                    .right_dock()
10515                    .read(cx)
10516                    .visible_panel()
10517                    .unwrap()
10518                    .panel_id(),
10519                panel_1.panel_id(),
10520            );
10521        });
10522
10523        // Move panel_1 back to the left
10524        panel_1.update_in(cx, |panel_1, window, cx| {
10525            panel_1.set_position(DockPosition::Left, window, cx)
10526        });
10527
10528        workspace.update_in(cx, |workspace, window, cx| {
10529            // Since panel_1 was visible on the right, we open the left dock and make panel_1 active.
10530            let left_dock = workspace.left_dock();
10531            assert!(left_dock.read(cx).is_open());
10532            assert_eq!(
10533                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10534                panel_1.panel_id()
10535            );
10536            assert_eq!(
10537                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
10538                px(1337.)
10539            );
10540            // And the right dock should be closed as it no longer has any panels.
10541            assert!(!workspace.right_dock().read(cx).is_open());
10542
10543            // Now we move panel_1 to the bottom
10544            panel_1.set_position(DockPosition::Bottom, window, cx);
10545        });
10546
10547        workspace.update_in(cx, |workspace, window, cx| {
10548            // Since panel_1 was visible on the left, we close the left dock.
10549            assert!(!workspace.left_dock().read(cx).is_open());
10550            // The bottom dock is sized based on the panel's default size,
10551            // since the panel orientation changed from vertical to horizontal.
10552            let bottom_dock = workspace.bottom_dock();
10553            assert_eq!(
10554                bottom_dock.read(cx).active_panel_size(window, cx).unwrap(),
10555                panel_1.size(window, cx),
10556            );
10557            // Close bottom dock and move panel_1 back to the left.
10558            bottom_dock.update(cx, |bottom_dock, cx| {
10559                bottom_dock.set_open(false, window, cx)
10560            });
10561            panel_1.set_position(DockPosition::Left, window, cx);
10562        });
10563
10564        // Emit activated event on panel 1
10565        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Activate));
10566
10567        // Now the left dock is open and panel_1 is active and focused.
10568        workspace.update_in(cx, |workspace, window, cx| {
10569            let left_dock = workspace.left_dock();
10570            assert!(left_dock.read(cx).is_open());
10571            assert_eq!(
10572                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10573                panel_1.panel_id(),
10574            );
10575            assert!(panel_1.focus_handle(cx).is_focused(window));
10576        });
10577
10578        // Emit closed event on panel 2, which is not active
10579        panel_2.update(cx, |_, cx| cx.emit(PanelEvent::Close));
10580
10581        // Wo don't close the left dock, because panel_2 wasn't the active panel
10582        workspace.update(cx, |workspace, cx| {
10583            let left_dock = workspace.left_dock();
10584            assert!(left_dock.read(cx).is_open());
10585            assert_eq!(
10586                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10587                panel_1.panel_id(),
10588            );
10589        });
10590
10591        // Emitting a ZoomIn event shows the panel as zoomed.
10592        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomIn));
10593        workspace.read_with(cx, |workspace, _| {
10594            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10595            assert_eq!(workspace.zoomed_position, Some(DockPosition::Left));
10596        });
10597
10598        // Move panel to another dock while it is zoomed
10599        panel_1.update_in(cx, |panel, window, cx| {
10600            panel.set_position(DockPosition::Right, window, cx)
10601        });
10602        workspace.read_with(cx, |workspace, _| {
10603            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10604
10605            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10606        });
10607
10608        // This is a helper for getting a:
10609        // - valid focus on an element,
10610        // - that isn't a part of the panes and panels system of the Workspace,
10611        // - and doesn't trigger the 'on_focus_lost' API.
10612        let focus_other_view = {
10613            let workspace = workspace.clone();
10614            move |cx: &mut VisualTestContext| {
10615                workspace.update_in(cx, |workspace, window, cx| {
10616                    if workspace.active_modal::<TestModal>(cx).is_some() {
10617                        workspace.toggle_modal(window, cx, TestModal::new);
10618                        workspace.toggle_modal(window, cx, TestModal::new);
10619                    } else {
10620                        workspace.toggle_modal(window, cx, TestModal::new);
10621                    }
10622                })
10623            }
10624        };
10625
10626        // If focus is transferred to another view that's not a panel or another pane, we still show
10627        // the panel as zoomed.
10628        focus_other_view(cx);
10629        workspace.read_with(cx, |workspace, _| {
10630            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10631            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10632        });
10633
10634        // If focus is transferred elsewhere in the workspace, the panel is no longer zoomed.
10635        workspace.update_in(cx, |_workspace, window, cx| {
10636            cx.focus_self(window);
10637        });
10638        workspace.read_with(cx, |workspace, _| {
10639            assert_eq!(workspace.zoomed, None);
10640            assert_eq!(workspace.zoomed_position, None);
10641        });
10642
10643        // If focus is transferred again to another view that's not a panel or a pane, we won't
10644        // show the panel as zoomed because it wasn't zoomed before.
10645        focus_other_view(cx);
10646        workspace.read_with(cx, |workspace, _| {
10647            assert_eq!(workspace.zoomed, None);
10648            assert_eq!(workspace.zoomed_position, None);
10649        });
10650
10651        // When the panel is activated, it is zoomed again.
10652        cx.dispatch_action(ToggleRightDock);
10653        workspace.read_with(cx, |workspace, _| {
10654            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10655            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10656        });
10657
10658        // Emitting a ZoomOut event unzooms the panel.
10659        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomOut));
10660        workspace.read_with(cx, |workspace, _| {
10661            assert_eq!(workspace.zoomed, None);
10662            assert_eq!(workspace.zoomed_position, None);
10663        });
10664
10665        // Emit closed event on panel 1, which is active
10666        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Close));
10667
10668        // Now the left dock is closed, because panel_1 was the active panel
10669        workspace.update(cx, |workspace, cx| {
10670            let right_dock = workspace.right_dock();
10671            assert!(!right_dock.read(cx).is_open());
10672        });
10673    }
10674
10675    #[gpui::test]
10676    async fn test_no_save_prompt_when_multi_buffer_dirty_items_closed(cx: &mut TestAppContext) {
10677        init_test(cx);
10678
10679        let fs = FakeFs::new(cx.background_executor.clone());
10680        let project = Project::test(fs, [], cx).await;
10681        let (workspace, cx) =
10682            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10683        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10684
10685        let dirty_regular_buffer = cx.new(|cx| {
10686            TestItem::new(cx)
10687                .with_dirty(true)
10688                .with_label("1.txt")
10689                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10690        });
10691        let dirty_regular_buffer_2 = cx.new(|cx| {
10692            TestItem::new(cx)
10693                .with_dirty(true)
10694                .with_label("2.txt")
10695                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10696        });
10697        let dirty_multi_buffer_with_both = cx.new(|cx| {
10698            TestItem::new(cx)
10699                .with_dirty(true)
10700                .with_buffer_kind(ItemBufferKind::Multibuffer)
10701                .with_label("Fake Project Search")
10702                .with_project_items(&[
10703                    dirty_regular_buffer.read(cx).project_items[0].clone(),
10704                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
10705                ])
10706        });
10707        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
10708        workspace.update_in(cx, |workspace, window, cx| {
10709            workspace.add_item(
10710                pane.clone(),
10711                Box::new(dirty_regular_buffer.clone()),
10712                None,
10713                false,
10714                false,
10715                window,
10716                cx,
10717            );
10718            workspace.add_item(
10719                pane.clone(),
10720                Box::new(dirty_regular_buffer_2.clone()),
10721                None,
10722                false,
10723                false,
10724                window,
10725                cx,
10726            );
10727            workspace.add_item(
10728                pane.clone(),
10729                Box::new(dirty_multi_buffer_with_both.clone()),
10730                None,
10731                false,
10732                false,
10733                window,
10734                cx,
10735            );
10736        });
10737
10738        pane.update_in(cx, |pane, window, cx| {
10739            pane.activate_item(2, true, true, window, cx);
10740            assert_eq!(
10741                pane.active_item().unwrap().item_id(),
10742                multi_buffer_with_both_files_id,
10743                "Should select the multi buffer in the pane"
10744            );
10745        });
10746        let close_all_but_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10747            pane.close_other_items(
10748                &CloseOtherItems {
10749                    save_intent: Some(SaveIntent::Save),
10750                    close_pinned: true,
10751                },
10752                None,
10753                window,
10754                cx,
10755            )
10756        });
10757        cx.background_executor.run_until_parked();
10758        assert!(!cx.has_pending_prompt());
10759        close_all_but_multi_buffer_task
10760            .await
10761            .expect("Closing all buffers but the multi buffer failed");
10762        pane.update(cx, |pane, cx| {
10763            assert_eq!(dirty_regular_buffer.read(cx).save_count, 1);
10764            assert_eq!(dirty_multi_buffer_with_both.read(cx).save_count, 0);
10765            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 1);
10766            assert_eq!(pane.items_len(), 1);
10767            assert_eq!(
10768                pane.active_item().unwrap().item_id(),
10769                multi_buffer_with_both_files_id,
10770                "Should have only the multi buffer left in the pane"
10771            );
10772            assert!(
10773                dirty_multi_buffer_with_both.read(cx).is_dirty,
10774                "The multi buffer containing the unsaved buffer should still be dirty"
10775            );
10776        });
10777
10778        dirty_regular_buffer.update(cx, |buffer, cx| {
10779            buffer.project_items[0].update(cx, |pi, _| pi.is_dirty = true)
10780        });
10781
10782        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10783            pane.close_active_item(
10784                &CloseActiveItem {
10785                    save_intent: Some(SaveIntent::Close),
10786                    close_pinned: false,
10787                },
10788                window,
10789                cx,
10790            )
10791        });
10792        cx.background_executor.run_until_parked();
10793        assert!(
10794            cx.has_pending_prompt(),
10795            "Dirty multi buffer should prompt a save dialog"
10796        );
10797        cx.simulate_prompt_answer("Save");
10798        cx.background_executor.run_until_parked();
10799        close_multi_buffer_task
10800            .await
10801            .expect("Closing the multi buffer failed");
10802        pane.update(cx, |pane, cx| {
10803            assert_eq!(
10804                dirty_multi_buffer_with_both.read(cx).save_count,
10805                1,
10806                "Multi buffer item should get be saved"
10807            );
10808            // Test impl does not save inner items, so we do not assert them
10809            assert_eq!(
10810                pane.items_len(),
10811                0,
10812                "No more items should be left in the pane"
10813            );
10814            assert!(pane.active_item().is_none());
10815        });
10816    }
10817
10818    #[gpui::test]
10819    async fn test_save_prompt_when_dirty_multi_buffer_closed_with_some_of_its_dirty_items_not_present_in_the_pane(
10820        cx: &mut TestAppContext,
10821    ) {
10822        init_test(cx);
10823
10824        let fs = FakeFs::new(cx.background_executor.clone());
10825        let project = Project::test(fs, [], cx).await;
10826        let (workspace, cx) =
10827            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10828        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10829
10830        let dirty_regular_buffer = cx.new(|cx| {
10831            TestItem::new(cx)
10832                .with_dirty(true)
10833                .with_label("1.txt")
10834                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10835        });
10836        let dirty_regular_buffer_2 = cx.new(|cx| {
10837            TestItem::new(cx)
10838                .with_dirty(true)
10839                .with_label("2.txt")
10840                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10841        });
10842        let clear_regular_buffer = cx.new(|cx| {
10843            TestItem::new(cx)
10844                .with_label("3.txt")
10845                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
10846        });
10847
10848        let dirty_multi_buffer_with_both = cx.new(|cx| {
10849            TestItem::new(cx)
10850                .with_dirty(true)
10851                .with_buffer_kind(ItemBufferKind::Multibuffer)
10852                .with_label("Fake Project Search")
10853                .with_project_items(&[
10854                    dirty_regular_buffer.read(cx).project_items[0].clone(),
10855                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
10856                    clear_regular_buffer.read(cx).project_items[0].clone(),
10857                ])
10858        });
10859        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
10860        workspace.update_in(cx, |workspace, window, cx| {
10861            workspace.add_item(
10862                pane.clone(),
10863                Box::new(dirty_regular_buffer.clone()),
10864                None,
10865                false,
10866                false,
10867                window,
10868                cx,
10869            );
10870            workspace.add_item(
10871                pane.clone(),
10872                Box::new(dirty_multi_buffer_with_both.clone()),
10873                None,
10874                false,
10875                false,
10876                window,
10877                cx,
10878            );
10879        });
10880
10881        pane.update_in(cx, |pane, window, cx| {
10882            pane.activate_item(1, true, true, window, cx);
10883            assert_eq!(
10884                pane.active_item().unwrap().item_id(),
10885                multi_buffer_with_both_files_id,
10886                "Should select the multi buffer in the pane"
10887            );
10888        });
10889        let _close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10890            pane.close_active_item(
10891                &CloseActiveItem {
10892                    save_intent: None,
10893                    close_pinned: false,
10894                },
10895                window,
10896                cx,
10897            )
10898        });
10899        cx.background_executor.run_until_parked();
10900        assert!(
10901            cx.has_pending_prompt(),
10902            "With one dirty item from the multi buffer not being in the pane, a save prompt should be shown"
10903        );
10904    }
10905
10906    /// Tests that when `close_on_file_delete` is enabled, files are automatically
10907    /// closed when they are deleted from disk.
10908    #[gpui::test]
10909    async fn test_close_on_disk_deletion_enabled(cx: &mut TestAppContext) {
10910        init_test(cx);
10911
10912        // Enable the close_on_disk_deletion setting
10913        cx.update_global(|store: &mut SettingsStore, cx| {
10914            store.update_user_settings(cx, |settings| {
10915                settings.workspace.close_on_file_delete = Some(true);
10916            });
10917        });
10918
10919        let fs = FakeFs::new(cx.background_executor.clone());
10920        let project = Project::test(fs, [], cx).await;
10921        let (workspace, cx) =
10922            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10923        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10924
10925        // Create a test item that simulates a file
10926        let item = cx.new(|cx| {
10927            TestItem::new(cx)
10928                .with_label("test.txt")
10929                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
10930        });
10931
10932        // Add item to workspace
10933        workspace.update_in(cx, |workspace, window, cx| {
10934            workspace.add_item(
10935                pane.clone(),
10936                Box::new(item.clone()),
10937                None,
10938                false,
10939                false,
10940                window,
10941                cx,
10942            );
10943        });
10944
10945        // Verify the item is in the pane
10946        pane.read_with(cx, |pane, _| {
10947            assert_eq!(pane.items().count(), 1);
10948        });
10949
10950        // Simulate file deletion by setting the item's deleted state
10951        item.update(cx, |item, _| {
10952            item.set_has_deleted_file(true);
10953        });
10954
10955        // Emit UpdateTab event to trigger the close behavior
10956        cx.run_until_parked();
10957        item.update(cx, |_, cx| {
10958            cx.emit(ItemEvent::UpdateTab);
10959        });
10960
10961        // Allow the close operation to complete
10962        cx.run_until_parked();
10963
10964        // Verify the item was automatically closed
10965        pane.read_with(cx, |pane, _| {
10966            assert_eq!(
10967                pane.items().count(),
10968                0,
10969                "Item should be automatically closed when file is deleted"
10970            );
10971        });
10972    }
10973
10974    /// Tests that when `close_on_file_delete` is disabled (default), files remain
10975    /// open with a strikethrough when they are deleted from disk.
10976    #[gpui::test]
10977    async fn test_close_on_disk_deletion_disabled(cx: &mut TestAppContext) {
10978        init_test(cx);
10979
10980        // Ensure close_on_disk_deletion is disabled (default)
10981        cx.update_global(|store: &mut SettingsStore, cx| {
10982            store.update_user_settings(cx, |settings| {
10983                settings.workspace.close_on_file_delete = Some(false);
10984            });
10985        });
10986
10987        let fs = FakeFs::new(cx.background_executor.clone());
10988        let project = Project::test(fs, [], cx).await;
10989        let (workspace, cx) =
10990            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10991        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10992
10993        // Create a test item that simulates a file
10994        let item = cx.new(|cx| {
10995            TestItem::new(cx)
10996                .with_label("test.txt")
10997                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
10998        });
10999
11000        // Add item to workspace
11001        workspace.update_in(cx, |workspace, window, cx| {
11002            workspace.add_item(
11003                pane.clone(),
11004                Box::new(item.clone()),
11005                None,
11006                false,
11007                false,
11008                window,
11009                cx,
11010            );
11011        });
11012
11013        // Verify the item is in the pane
11014        pane.read_with(cx, |pane, _| {
11015            assert_eq!(pane.items().count(), 1);
11016        });
11017
11018        // Simulate file deletion
11019        item.update(cx, |item, _| {
11020            item.set_has_deleted_file(true);
11021        });
11022
11023        // Emit UpdateTab event
11024        cx.run_until_parked();
11025        item.update(cx, |_, cx| {
11026            cx.emit(ItemEvent::UpdateTab);
11027        });
11028
11029        // Allow any potential close operation to complete
11030        cx.run_until_parked();
11031
11032        // Verify the item remains open (with strikethrough)
11033        pane.read_with(cx, |pane, _| {
11034            assert_eq!(
11035                pane.items().count(),
11036                1,
11037                "Item should remain open when close_on_disk_deletion is disabled"
11038            );
11039        });
11040
11041        // Verify the item shows as deleted
11042        item.read_with(cx, |item, _| {
11043            assert!(
11044                item.has_deleted_file,
11045                "Item should be marked as having deleted file"
11046            );
11047        });
11048    }
11049
11050    /// Tests that dirty files are not automatically closed when deleted from disk,
11051    /// even when `close_on_file_delete` is enabled. This ensures users don't lose
11052    /// unsaved changes without being prompted.
11053    #[gpui::test]
11054    async fn test_close_on_disk_deletion_with_dirty_file(cx: &mut TestAppContext) {
11055        init_test(cx);
11056
11057        // Enable the close_on_file_delete setting
11058        cx.update_global(|store: &mut SettingsStore, cx| {
11059            store.update_user_settings(cx, |settings| {
11060                settings.workspace.close_on_file_delete = Some(true);
11061            });
11062        });
11063
11064        let fs = FakeFs::new(cx.background_executor.clone());
11065        let project = Project::test(fs, [], cx).await;
11066        let (workspace, cx) =
11067            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11068        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11069
11070        // Create a dirty test item
11071        let item = cx.new(|cx| {
11072            TestItem::new(cx)
11073                .with_dirty(true)
11074                .with_label("test.txt")
11075                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
11076        });
11077
11078        // Add item to workspace
11079        workspace.update_in(cx, |workspace, window, cx| {
11080            workspace.add_item(
11081                pane.clone(),
11082                Box::new(item.clone()),
11083                None,
11084                false,
11085                false,
11086                window,
11087                cx,
11088            );
11089        });
11090
11091        // Simulate file deletion
11092        item.update(cx, |item, _| {
11093            item.set_has_deleted_file(true);
11094        });
11095
11096        // Emit UpdateTab event to trigger the close behavior
11097        cx.run_until_parked();
11098        item.update(cx, |_, cx| {
11099            cx.emit(ItemEvent::UpdateTab);
11100        });
11101
11102        // Allow any potential close operation to complete
11103        cx.run_until_parked();
11104
11105        // Verify the item remains open (dirty files are not auto-closed)
11106        pane.read_with(cx, |pane, _| {
11107            assert_eq!(
11108                pane.items().count(),
11109                1,
11110                "Dirty items should not be automatically closed even when file is deleted"
11111            );
11112        });
11113
11114        // Verify the item is marked as deleted and still dirty
11115        item.read_with(cx, |item, _| {
11116            assert!(
11117                item.has_deleted_file,
11118                "Item should be marked as having deleted file"
11119            );
11120            assert!(item.is_dirty, "Item should still be dirty");
11121        });
11122    }
11123
11124    /// Tests that navigation history is cleaned up when files are auto-closed
11125    /// due to deletion from disk.
11126    #[gpui::test]
11127    async fn test_close_on_disk_deletion_cleans_navigation_history(cx: &mut TestAppContext) {
11128        init_test(cx);
11129
11130        // Enable the close_on_file_delete setting
11131        cx.update_global(|store: &mut SettingsStore, cx| {
11132            store.update_user_settings(cx, |settings| {
11133                settings.workspace.close_on_file_delete = Some(true);
11134            });
11135        });
11136
11137        let fs = FakeFs::new(cx.background_executor.clone());
11138        let project = Project::test(fs, [], cx).await;
11139        let (workspace, cx) =
11140            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11141        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11142
11143        // Create test items
11144        let item1 = cx.new(|cx| {
11145            TestItem::new(cx)
11146                .with_label("test1.txt")
11147                .with_project_items(&[TestProjectItem::new(1, "test1.txt", cx)])
11148        });
11149        let item1_id = item1.item_id();
11150
11151        let item2 = cx.new(|cx| {
11152            TestItem::new(cx)
11153                .with_label("test2.txt")
11154                .with_project_items(&[TestProjectItem::new(2, "test2.txt", cx)])
11155        });
11156
11157        // Add items to workspace
11158        workspace.update_in(cx, |workspace, window, cx| {
11159            workspace.add_item(
11160                pane.clone(),
11161                Box::new(item1.clone()),
11162                None,
11163                false,
11164                false,
11165                window,
11166                cx,
11167            );
11168            workspace.add_item(
11169                pane.clone(),
11170                Box::new(item2.clone()),
11171                None,
11172                false,
11173                false,
11174                window,
11175                cx,
11176            );
11177        });
11178
11179        // Activate item1 to ensure it gets navigation entries
11180        pane.update_in(cx, |pane, window, cx| {
11181            pane.activate_item(0, true, true, window, cx);
11182        });
11183
11184        // Switch to item2 and back to create navigation history
11185        pane.update_in(cx, |pane, window, cx| {
11186            pane.activate_item(1, true, true, window, cx);
11187        });
11188        cx.run_until_parked();
11189
11190        pane.update_in(cx, |pane, window, cx| {
11191            pane.activate_item(0, true, true, window, cx);
11192        });
11193        cx.run_until_parked();
11194
11195        // Simulate file deletion for item1
11196        item1.update(cx, |item, _| {
11197            item.set_has_deleted_file(true);
11198        });
11199
11200        // Emit UpdateTab event to trigger the close behavior
11201        item1.update(cx, |_, cx| {
11202            cx.emit(ItemEvent::UpdateTab);
11203        });
11204        cx.run_until_parked();
11205
11206        // Verify item1 was closed
11207        pane.read_with(cx, |pane, _| {
11208            assert_eq!(
11209                pane.items().count(),
11210                1,
11211                "Should have 1 item remaining after auto-close"
11212            );
11213        });
11214
11215        // Check navigation history after close
11216        let has_item = pane.read_with(cx, |pane, cx| {
11217            let mut has_item = false;
11218            pane.nav_history().for_each_entry(cx, |entry, _| {
11219                if entry.item.id() == item1_id {
11220                    has_item = true;
11221                }
11222            });
11223            has_item
11224        });
11225
11226        assert!(
11227            !has_item,
11228            "Navigation history should not contain closed item entries"
11229        );
11230    }
11231
11232    #[gpui::test]
11233    async fn test_no_save_prompt_when_dirty_multi_buffer_closed_with_all_of_its_dirty_items_present_in_the_pane(
11234        cx: &mut TestAppContext,
11235    ) {
11236        init_test(cx);
11237
11238        let fs = FakeFs::new(cx.background_executor.clone());
11239        let project = Project::test(fs, [], cx).await;
11240        let (workspace, cx) =
11241            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11242        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11243
11244        let dirty_regular_buffer = cx.new(|cx| {
11245            TestItem::new(cx)
11246                .with_dirty(true)
11247                .with_label("1.txt")
11248                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
11249        });
11250        let dirty_regular_buffer_2 = cx.new(|cx| {
11251            TestItem::new(cx)
11252                .with_dirty(true)
11253                .with_label("2.txt")
11254                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
11255        });
11256        let clear_regular_buffer = cx.new(|cx| {
11257            TestItem::new(cx)
11258                .with_label("3.txt")
11259                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
11260        });
11261
11262        let dirty_multi_buffer = cx.new(|cx| {
11263            TestItem::new(cx)
11264                .with_dirty(true)
11265                .with_buffer_kind(ItemBufferKind::Multibuffer)
11266                .with_label("Fake Project Search")
11267                .with_project_items(&[
11268                    dirty_regular_buffer.read(cx).project_items[0].clone(),
11269                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
11270                    clear_regular_buffer.read(cx).project_items[0].clone(),
11271                ])
11272        });
11273        workspace.update_in(cx, |workspace, window, cx| {
11274            workspace.add_item(
11275                pane.clone(),
11276                Box::new(dirty_regular_buffer.clone()),
11277                None,
11278                false,
11279                false,
11280                window,
11281                cx,
11282            );
11283            workspace.add_item(
11284                pane.clone(),
11285                Box::new(dirty_regular_buffer_2.clone()),
11286                None,
11287                false,
11288                false,
11289                window,
11290                cx,
11291            );
11292            workspace.add_item(
11293                pane.clone(),
11294                Box::new(dirty_multi_buffer.clone()),
11295                None,
11296                false,
11297                false,
11298                window,
11299                cx,
11300            );
11301        });
11302
11303        pane.update_in(cx, |pane, window, cx| {
11304            pane.activate_item(2, true, true, window, cx);
11305            assert_eq!(
11306                pane.active_item().unwrap().item_id(),
11307                dirty_multi_buffer.item_id(),
11308                "Should select the multi buffer in the pane"
11309            );
11310        });
11311        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
11312            pane.close_active_item(
11313                &CloseActiveItem {
11314                    save_intent: None,
11315                    close_pinned: false,
11316                },
11317                window,
11318                cx,
11319            )
11320        });
11321        cx.background_executor.run_until_parked();
11322        assert!(
11323            !cx.has_pending_prompt(),
11324            "All dirty items from the multi buffer are in the pane still, no save prompts should be shown"
11325        );
11326        close_multi_buffer_task
11327            .await
11328            .expect("Closing multi buffer failed");
11329        pane.update(cx, |pane, cx| {
11330            assert_eq!(dirty_regular_buffer.read(cx).save_count, 0);
11331            assert_eq!(dirty_multi_buffer.read(cx).save_count, 0);
11332            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 0);
11333            assert_eq!(
11334                pane.items()
11335                    .map(|item| item.item_id())
11336                    .sorted()
11337                    .collect::<Vec<_>>(),
11338                vec![
11339                    dirty_regular_buffer.item_id(),
11340                    dirty_regular_buffer_2.item_id(),
11341                ],
11342                "Should have no multi buffer left in the pane"
11343            );
11344            assert!(dirty_regular_buffer.read(cx).is_dirty);
11345            assert!(dirty_regular_buffer_2.read(cx).is_dirty);
11346        });
11347    }
11348
11349    #[gpui::test]
11350    async fn test_move_focused_panel_to_next_position(cx: &mut gpui::TestAppContext) {
11351        init_test(cx);
11352        let fs = FakeFs::new(cx.executor());
11353        let project = Project::test(fs, [], cx).await;
11354        let (workspace, cx) =
11355            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11356
11357        // Add a new panel to the right dock, opening the dock and setting the
11358        // focus to the new panel.
11359        let panel = workspace.update_in(cx, |workspace, window, cx| {
11360            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
11361            workspace.add_panel(panel.clone(), window, cx);
11362
11363            workspace
11364                .right_dock()
11365                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
11366
11367            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11368
11369            panel
11370        });
11371
11372        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
11373        // panel to the next valid position which, in this case, is the left
11374        // dock.
11375        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11376        workspace.update(cx, |workspace, cx| {
11377            assert!(workspace.left_dock().read(cx).is_open());
11378            assert_eq!(panel.read(cx).position, DockPosition::Left);
11379        });
11380
11381        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
11382        // panel to the next valid position which, in this case, is the bottom
11383        // dock.
11384        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11385        workspace.update(cx, |workspace, cx| {
11386            assert!(workspace.bottom_dock().read(cx).is_open());
11387            assert_eq!(panel.read(cx).position, DockPosition::Bottom);
11388        });
11389
11390        // Dispatch the `MoveFocusedPanelToNextPosition` action again, this time
11391        // around moving the panel to its initial position, the right dock.
11392        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11393        workspace.update(cx, |workspace, cx| {
11394            assert!(workspace.right_dock().read(cx).is_open());
11395            assert_eq!(panel.read(cx).position, DockPosition::Right);
11396        });
11397
11398        // Remove focus from the panel, ensuring that, if the panel is not
11399        // focused, the `MoveFocusedPanelToNextPosition` action does not update
11400        // the panel's position, so the panel is still in the right dock.
11401        workspace.update_in(cx, |workspace, window, cx| {
11402            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11403        });
11404
11405        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11406        workspace.update(cx, |workspace, cx| {
11407            assert!(workspace.right_dock().read(cx).is_open());
11408            assert_eq!(panel.read(cx).position, DockPosition::Right);
11409        });
11410    }
11411
11412    #[gpui::test]
11413    async fn test_moving_items_create_panes(cx: &mut TestAppContext) {
11414        init_test(cx);
11415
11416        let fs = FakeFs::new(cx.executor());
11417        let project = Project::test(fs, [], cx).await;
11418        let (workspace, cx) =
11419            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11420
11421        let item_1 = cx.new(|cx| {
11422            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
11423        });
11424        workspace.update_in(cx, |workspace, window, cx| {
11425            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
11426            workspace.move_item_to_pane_in_direction(
11427                &MoveItemToPaneInDirection {
11428                    direction: SplitDirection::Right,
11429                    focus: true,
11430                    clone: false,
11431                },
11432                window,
11433                cx,
11434            );
11435            workspace.move_item_to_pane_at_index(
11436                &MoveItemToPane {
11437                    destination: 3,
11438                    focus: true,
11439                    clone: false,
11440                },
11441                window,
11442                cx,
11443            );
11444
11445            assert_eq!(workspace.panes.len(), 1, "No new panes were created");
11446            assert_eq!(
11447                pane_items_paths(&workspace.active_pane, cx),
11448                vec!["first.txt".to_string()],
11449                "Single item was not moved anywhere"
11450            );
11451        });
11452
11453        let item_2 = cx.new(|cx| {
11454            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "second.txt", cx)])
11455        });
11456        workspace.update_in(cx, |workspace, window, cx| {
11457            workspace.add_item_to_active_pane(Box::new(item_2), None, true, window, cx);
11458            assert_eq!(
11459                pane_items_paths(&workspace.panes[0], cx),
11460                vec!["first.txt".to_string(), "second.txt".to_string()],
11461            );
11462            workspace.move_item_to_pane_in_direction(
11463                &MoveItemToPaneInDirection {
11464                    direction: SplitDirection::Right,
11465                    focus: true,
11466                    clone: false,
11467                },
11468                window,
11469                cx,
11470            );
11471
11472            assert_eq!(workspace.panes.len(), 2, "A new pane should be created");
11473            assert_eq!(
11474                pane_items_paths(&workspace.panes[0], cx),
11475                vec!["first.txt".to_string()],
11476                "After moving, one item should be left in the original pane"
11477            );
11478            assert_eq!(
11479                pane_items_paths(&workspace.panes[1], cx),
11480                vec!["second.txt".to_string()],
11481                "New item should have been moved to the new pane"
11482            );
11483        });
11484
11485        let item_3 = cx.new(|cx| {
11486            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "third.txt", cx)])
11487        });
11488        workspace.update_in(cx, |workspace, window, cx| {
11489            let original_pane = workspace.panes[0].clone();
11490            workspace.set_active_pane(&original_pane, window, cx);
11491            workspace.add_item_to_active_pane(Box::new(item_3), None, true, window, cx);
11492            assert_eq!(workspace.panes.len(), 2, "No new panes were created");
11493            assert_eq!(
11494                pane_items_paths(&workspace.active_pane, cx),
11495                vec!["first.txt".to_string(), "third.txt".to_string()],
11496                "New pane should be ready to move one item out"
11497            );
11498
11499            workspace.move_item_to_pane_at_index(
11500                &MoveItemToPane {
11501                    destination: 3,
11502                    focus: true,
11503                    clone: false,
11504                },
11505                window,
11506                cx,
11507            );
11508            assert_eq!(workspace.panes.len(), 3, "A new pane should be created");
11509            assert_eq!(
11510                pane_items_paths(&workspace.active_pane, cx),
11511                vec!["first.txt".to_string()],
11512                "After moving, one item should be left in the original pane"
11513            );
11514            assert_eq!(
11515                pane_items_paths(&workspace.panes[1], cx),
11516                vec!["second.txt".to_string()],
11517                "Previously created pane should be unchanged"
11518            );
11519            assert_eq!(
11520                pane_items_paths(&workspace.panes[2], cx),
11521                vec!["third.txt".to_string()],
11522                "New item should have been moved to the new pane"
11523            );
11524        });
11525    }
11526
11527    #[gpui::test]
11528    async fn test_moving_items_can_clone_panes(cx: &mut TestAppContext) {
11529        init_test(cx);
11530
11531        let fs = FakeFs::new(cx.executor());
11532        let project = Project::test(fs, [], cx).await;
11533        let (workspace, cx) =
11534            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11535
11536        let item_1 = cx.new(|cx| {
11537            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
11538        });
11539        workspace.update_in(cx, |workspace, window, cx| {
11540            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
11541            workspace.move_item_to_pane_in_direction(
11542                &MoveItemToPaneInDirection {
11543                    direction: SplitDirection::Right,
11544                    focus: true,
11545                    clone: true,
11546                },
11547                window,
11548                cx,
11549            );
11550            workspace.move_item_to_pane_at_index(
11551                &MoveItemToPane {
11552                    destination: 3,
11553                    focus: true,
11554                    clone: true,
11555                },
11556                window,
11557                cx,
11558            );
11559        });
11560        cx.run_until_parked();
11561
11562        workspace.update(cx, |workspace, cx| {
11563            assert_eq!(workspace.panes.len(), 3, "Two new panes were created");
11564            for pane in workspace.panes() {
11565                assert_eq!(
11566                    pane_items_paths(pane, cx),
11567                    vec!["first.txt".to_string()],
11568                    "Single item exists in all panes"
11569                );
11570            }
11571        });
11572
11573        // verify that the active pane has been updated after waiting for the
11574        // pane focus event to fire and resolve
11575        workspace.read_with(cx, |workspace, _app| {
11576            assert_eq!(
11577                workspace.active_pane(),
11578                &workspace.panes[2],
11579                "The third pane should be the active one: {:?}",
11580                workspace.panes
11581            );
11582        })
11583    }
11584
11585    mod register_project_item_tests {
11586
11587        use super::*;
11588
11589        // View
11590        struct TestPngItemView {
11591            focus_handle: FocusHandle,
11592        }
11593        // Model
11594        struct TestPngItem {}
11595
11596        impl project::ProjectItem for TestPngItem {
11597            fn try_open(
11598                _project: &Entity<Project>,
11599                path: &ProjectPath,
11600                cx: &mut App,
11601            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
11602                if path.path.extension().unwrap() == "png" {
11603                    Some(cx.spawn(async move |cx| cx.new(|_| TestPngItem {})))
11604                } else {
11605                    None
11606                }
11607            }
11608
11609            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
11610                None
11611            }
11612
11613            fn project_path(&self, _: &App) -> Option<ProjectPath> {
11614                None
11615            }
11616
11617            fn is_dirty(&self) -> bool {
11618                false
11619            }
11620        }
11621
11622        impl Item for TestPngItemView {
11623            type Event = ();
11624            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11625                "".into()
11626            }
11627        }
11628        impl EventEmitter<()> for TestPngItemView {}
11629        impl Focusable for TestPngItemView {
11630            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11631                self.focus_handle.clone()
11632            }
11633        }
11634
11635        impl Render for TestPngItemView {
11636            fn render(
11637                &mut self,
11638                _window: &mut Window,
11639                _cx: &mut Context<Self>,
11640            ) -> impl IntoElement {
11641                Empty
11642            }
11643        }
11644
11645        impl ProjectItem for TestPngItemView {
11646            type Item = TestPngItem;
11647
11648            fn for_project_item(
11649                _project: Entity<Project>,
11650                _pane: Option<&Pane>,
11651                _item: Entity<Self::Item>,
11652                _: &mut Window,
11653                cx: &mut Context<Self>,
11654            ) -> Self
11655            where
11656                Self: Sized,
11657            {
11658                Self {
11659                    focus_handle: cx.focus_handle(),
11660                }
11661            }
11662        }
11663
11664        // View
11665        struct TestIpynbItemView {
11666            focus_handle: FocusHandle,
11667        }
11668        // Model
11669        struct TestIpynbItem {}
11670
11671        impl project::ProjectItem for TestIpynbItem {
11672            fn try_open(
11673                _project: &Entity<Project>,
11674                path: &ProjectPath,
11675                cx: &mut App,
11676            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
11677                if path.path.extension().unwrap() == "ipynb" {
11678                    Some(cx.spawn(async move |cx| cx.new(|_| TestIpynbItem {})))
11679                } else {
11680                    None
11681                }
11682            }
11683
11684            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
11685                None
11686            }
11687
11688            fn project_path(&self, _: &App) -> Option<ProjectPath> {
11689                None
11690            }
11691
11692            fn is_dirty(&self) -> bool {
11693                false
11694            }
11695        }
11696
11697        impl Item for TestIpynbItemView {
11698            type Event = ();
11699            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11700                "".into()
11701            }
11702        }
11703        impl EventEmitter<()> for TestIpynbItemView {}
11704        impl Focusable for TestIpynbItemView {
11705            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11706                self.focus_handle.clone()
11707            }
11708        }
11709
11710        impl Render for TestIpynbItemView {
11711            fn render(
11712                &mut self,
11713                _window: &mut Window,
11714                _cx: &mut Context<Self>,
11715            ) -> impl IntoElement {
11716                Empty
11717            }
11718        }
11719
11720        impl ProjectItem for TestIpynbItemView {
11721            type Item = TestIpynbItem;
11722
11723            fn for_project_item(
11724                _project: Entity<Project>,
11725                _pane: Option<&Pane>,
11726                _item: Entity<Self::Item>,
11727                _: &mut Window,
11728                cx: &mut Context<Self>,
11729            ) -> Self
11730            where
11731                Self: Sized,
11732            {
11733                Self {
11734                    focus_handle: cx.focus_handle(),
11735                }
11736            }
11737        }
11738
11739        struct TestAlternatePngItemView {
11740            focus_handle: FocusHandle,
11741        }
11742
11743        impl Item for TestAlternatePngItemView {
11744            type Event = ();
11745            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11746                "".into()
11747            }
11748        }
11749
11750        impl EventEmitter<()> for TestAlternatePngItemView {}
11751        impl Focusable for TestAlternatePngItemView {
11752            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11753                self.focus_handle.clone()
11754            }
11755        }
11756
11757        impl Render for TestAlternatePngItemView {
11758            fn render(
11759                &mut self,
11760                _window: &mut Window,
11761                _cx: &mut Context<Self>,
11762            ) -> impl IntoElement {
11763                Empty
11764            }
11765        }
11766
11767        impl ProjectItem for TestAlternatePngItemView {
11768            type Item = TestPngItem;
11769
11770            fn for_project_item(
11771                _project: Entity<Project>,
11772                _pane: Option<&Pane>,
11773                _item: Entity<Self::Item>,
11774                _: &mut Window,
11775                cx: &mut Context<Self>,
11776            ) -> Self
11777            where
11778                Self: Sized,
11779            {
11780                Self {
11781                    focus_handle: cx.focus_handle(),
11782                }
11783            }
11784        }
11785
11786        #[gpui::test]
11787        async fn test_register_project_item(cx: &mut TestAppContext) {
11788            init_test(cx);
11789
11790            cx.update(|cx| {
11791                register_project_item::<TestPngItemView>(cx);
11792                register_project_item::<TestIpynbItemView>(cx);
11793            });
11794
11795            let fs = FakeFs::new(cx.executor());
11796            fs.insert_tree(
11797                "/root1",
11798                json!({
11799                    "one.png": "BINARYDATAHERE",
11800                    "two.ipynb": "{ totally a notebook }",
11801                    "three.txt": "editing text, sure why not?"
11802                }),
11803            )
11804            .await;
11805
11806            let project = Project::test(fs, ["root1".as_ref()], cx).await;
11807            let (workspace, cx) =
11808                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11809
11810            let worktree_id = project.update(cx, |project, cx| {
11811                project.worktrees(cx).next().unwrap().read(cx).id()
11812            });
11813
11814            let handle = workspace
11815                .update_in(cx, |workspace, window, cx| {
11816                    let project_path = (worktree_id, rel_path("one.png"));
11817                    workspace.open_path(project_path, None, true, window, cx)
11818                })
11819                .await
11820                .unwrap();
11821
11822            // Now we can check if the handle we got back errored or not
11823            assert_eq!(
11824                handle.to_any_view().entity_type(),
11825                TypeId::of::<TestPngItemView>()
11826            );
11827
11828            let handle = workspace
11829                .update_in(cx, |workspace, window, cx| {
11830                    let project_path = (worktree_id, rel_path("two.ipynb"));
11831                    workspace.open_path(project_path, None, true, window, cx)
11832                })
11833                .await
11834                .unwrap();
11835
11836            assert_eq!(
11837                handle.to_any_view().entity_type(),
11838                TypeId::of::<TestIpynbItemView>()
11839            );
11840
11841            let handle = workspace
11842                .update_in(cx, |workspace, window, cx| {
11843                    let project_path = (worktree_id, rel_path("three.txt"));
11844                    workspace.open_path(project_path, None, true, window, cx)
11845                })
11846                .await;
11847            assert!(handle.is_err());
11848        }
11849
11850        #[gpui::test]
11851        async fn test_register_project_item_two_enter_one_leaves(cx: &mut TestAppContext) {
11852            init_test(cx);
11853
11854            cx.update(|cx| {
11855                register_project_item::<TestPngItemView>(cx);
11856                register_project_item::<TestAlternatePngItemView>(cx);
11857            });
11858
11859            let fs = FakeFs::new(cx.executor());
11860            fs.insert_tree(
11861                "/root1",
11862                json!({
11863                    "one.png": "BINARYDATAHERE",
11864                    "two.ipynb": "{ totally a notebook }",
11865                    "three.txt": "editing text, sure why not?"
11866                }),
11867            )
11868            .await;
11869            let project = Project::test(fs, ["root1".as_ref()], cx).await;
11870            let (workspace, cx) =
11871                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11872            let worktree_id = project.update(cx, |project, cx| {
11873                project.worktrees(cx).next().unwrap().read(cx).id()
11874            });
11875
11876            let handle = workspace
11877                .update_in(cx, |workspace, window, cx| {
11878                    let project_path = (worktree_id, rel_path("one.png"));
11879                    workspace.open_path(project_path, None, true, window, cx)
11880                })
11881                .await
11882                .unwrap();
11883
11884            // This _must_ be the second item registered
11885            assert_eq!(
11886                handle.to_any_view().entity_type(),
11887                TypeId::of::<TestAlternatePngItemView>()
11888            );
11889
11890            let handle = workspace
11891                .update_in(cx, |workspace, window, cx| {
11892                    let project_path = (worktree_id, rel_path("three.txt"));
11893                    workspace.open_path(project_path, None, true, window, cx)
11894                })
11895                .await;
11896            assert!(handle.is_err());
11897        }
11898    }
11899
11900    #[gpui::test]
11901    async fn test_status_bar_visibility(cx: &mut TestAppContext) {
11902        init_test(cx);
11903
11904        let fs = FakeFs::new(cx.executor());
11905        let project = Project::test(fs, [], cx).await;
11906        let (workspace, _cx) =
11907            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11908
11909        // Test with status bar shown (default)
11910        workspace.read_with(cx, |workspace, cx| {
11911            let visible = workspace.status_bar_visible(cx);
11912            assert!(visible, "Status bar should be visible by default");
11913        });
11914
11915        // Test with status bar hidden
11916        cx.update_global(|store: &mut SettingsStore, cx| {
11917            store.update_user_settings(cx, |settings| {
11918                settings.status_bar.get_or_insert_default().show = Some(false);
11919            });
11920        });
11921
11922        workspace.read_with(cx, |workspace, cx| {
11923            let visible = workspace.status_bar_visible(cx);
11924            assert!(!visible, "Status bar should be hidden when show is false");
11925        });
11926
11927        // Test with status bar shown explicitly
11928        cx.update_global(|store: &mut SettingsStore, cx| {
11929            store.update_user_settings(cx, |settings| {
11930                settings.status_bar.get_or_insert_default().show = Some(true);
11931            });
11932        });
11933
11934        workspace.read_with(cx, |workspace, cx| {
11935            let visible = workspace.status_bar_visible(cx);
11936            assert!(visible, "Status bar should be visible when show is true");
11937        });
11938    }
11939
11940    fn pane_items_paths(pane: &Entity<Pane>, cx: &App) -> Vec<String> {
11941        pane.read(cx)
11942            .items()
11943            .flat_map(|item| {
11944                item.project_paths(cx)
11945                    .into_iter()
11946                    .map(|path| path.path.display(PathStyle::local()).into_owned())
11947            })
11948            .collect()
11949    }
11950
11951    pub fn init_test(cx: &mut TestAppContext) {
11952        cx.update(|cx| {
11953            let settings_store = SettingsStore::test(cx);
11954            cx.set_global(settings_store);
11955            theme::init(theme::LoadThemes::JustBase, cx);
11956        });
11957    }
11958
11959    fn dirty_project_item(id: u64, path: &str, cx: &mut App) -> Entity<TestProjectItem> {
11960        let item = TestProjectItem::new(id, path, cx);
11961        item.update(cx, |item, _| {
11962            item.is_dirty = true;
11963        });
11964        item
11965    }
11966}