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;
   12pub mod shared_screen;
   13mod status_bar;
   14pub mod tasks;
   15mod theme_preview;
   16mod toast_layer;
   17mod toolbar;
   18mod workspace_settings;
   19
   20pub use crate::notifications::NotificationFrame;
   21pub use dock::Panel;
   22pub use path_list::PathList;
   23pub use toast_layer::{ToastAction, ToastLayer, ToastView};
   24
   25use anyhow::{Context as _, Result, anyhow};
   26use call::{ActiveCall, call_settings::CallSettings};
   27use client::{
   28    ChannelId, Client, ErrorExt, Status, TypedEnvelope, UserStore,
   29    proto::{self, ErrorCode, PanelId, PeerId},
   30};
   31use collections::{HashMap, HashSet, hash_map};
   32use dock::{Dock, DockPosition, PanelButtons, PanelHandle, RESIZE_HANDLE_SIZE};
   33use futures::{
   34    Future, FutureExt, StreamExt,
   35    channel::{
   36        mpsc::{self, UnboundedReceiver, UnboundedSender},
   37        oneshot,
   38    },
   39    future::{Shared, try_join_all},
   40};
   41use gpui::{
   42    Action, AnyEntity, AnyView, AnyWeakView, App, AsyncApp, AsyncWindowContext, Bounds, Context,
   43    CursorStyle, Decorations, DragMoveEvent, Entity, EntityId, EventEmitter, FocusHandle,
   44    Focusable, Global, HitboxBehavior, Hsla, KeyContext, Keystroke, ManagedView, MouseButton,
   45    PathPromptOptions, Point, PromptLevel, Render, ResizeEdge, Size, Stateful, Subscription,
   46    SystemWindowTabController, Task, Tiling, WeakEntity, WindowBounds, WindowHandle, WindowId,
   47    WindowOptions, actions, canvas, point, relative, size, transparent_black,
   48};
   49pub use history_manager::*;
   50pub use item::{
   51    FollowableItem, FollowableItemHandle, Item, ItemHandle, ItemSettings, PreviewTabsSettings,
   52    ProjectItem, SerializableItem, SerializableItemHandle, WeakItemHandle,
   53};
   54use itertools::Itertools;
   55use language::{Buffer, LanguageRegistry, Rope, language_settings::all_language_settings};
   56pub use modal_layer::*;
   57use node_runtime::NodeRuntime;
   58use notifications::{
   59    DetachAndPromptErr, Notifications, dismiss_app_notification,
   60    simple_message_notification::MessageNotification,
   61};
   62pub use pane::*;
   63pub use pane_group::{
   64    ActivePaneDecorator, HANDLE_HITBOX_SIZE, Member, PaneAxis, PaneGroup, PaneRenderContext,
   65    SplitDirection,
   66};
   67use persistence::{DB, SerializedWindowBounds, model::SerializedWorkspace};
   68pub use persistence::{
   69    DB as WORKSPACE_DB, WorkspaceDb, delete_unloaded_items,
   70    model::{ItemId, SerializedWorkspaceLocation},
   71};
   72use postage::stream::Stream;
   73use project::{
   74    DirectoryLister, Project, ProjectEntryId, ProjectPath, ResolvedPath, Worktree, WorktreeId,
   75    WorktreeSettings,
   76    debugger::{breakpoint_store::BreakpointStoreEvent, session::ThreadStatus},
   77    toolchain_store::ToolchainStoreEvent,
   78};
   79use remote::{
   80    RemoteClientDelegate, RemoteConnection, RemoteConnectionOptions,
   81    remote_client::ConnectionIdentifier,
   82};
   83use schemars::JsonSchema;
   84use serde::Deserialize;
   85use session::AppSession;
   86use settings::{CenteredPaddingSettings, Settings, SettingsLocation, update_settings_file};
   87use shared_screen::SharedScreen;
   88use sqlez::{
   89    bindable::{Bind, Column, StaticColumnCount},
   90    statement::Statement,
   91};
   92use status_bar::StatusBar;
   93pub use status_bar::StatusItemView;
   94use std::{
   95    any::TypeId,
   96    borrow::Cow,
   97    cell::RefCell,
   98    cmp,
   99    collections::{VecDeque, hash_map::DefaultHasher},
  100    env,
  101    hash::{Hash, Hasher},
  102    path::{Path, PathBuf},
  103    process::ExitStatus,
  104    rc::Rc,
  105    sync::{
  106        Arc, LazyLock, Weak,
  107        atomic::{AtomicBool, AtomicUsize},
  108    },
  109    time::Duration,
  110};
  111use task::{DebugScenario, SpawnInTerminal, TaskContext};
  112use theme::{ActiveTheme, GlobalTheme, SystemAppearance, ThemeSettings};
  113pub use toolbar::{Toolbar, ToolbarItemEvent, ToolbarItemLocation, ToolbarItemView};
  114pub use ui;
  115use ui::{Window, prelude::*};
  116use util::{
  117    ResultExt, TryFutureExt,
  118    paths::{PathStyle, SanitizedPath},
  119    rel_path::RelPath,
  120    serde::default_true,
  121};
  122use uuid::Uuid;
  123pub use workspace_settings::{
  124    AutosaveSetting, BottomDockLayout, RestoreOnStartupBehavior, StatusBarSettings, TabBarSettings,
  125    WorkspaceSettings,
  126};
  127use zed_actions::{Spawn, feedback::FileBugReport};
  128
  129use crate::persistence::{
  130    SerializedAxis,
  131    model::{DockData, DockStructure, SerializedItem, SerializedPane, SerializedPaneGroup},
  132};
  133use crate::{item::ItemBufferKind, notifications::NotificationId};
  134
  135pub const SERIALIZATION_THROTTLE_TIME: Duration = Duration::from_millis(200);
  136
  137static ZED_WINDOW_SIZE: LazyLock<Option<Size<Pixels>>> = LazyLock::new(|| {
  138    env::var("ZED_WINDOW_SIZE")
  139        .ok()
  140        .as_deref()
  141        .and_then(parse_pixel_size_env_var)
  142});
  143
  144static ZED_WINDOW_POSITION: LazyLock<Option<Point<Pixels>>> = LazyLock::new(|| {
  145    env::var("ZED_WINDOW_POSITION")
  146        .ok()
  147        .as_deref()
  148        .and_then(parse_pixel_position_env_var)
  149});
  150
  151pub trait TerminalProvider {
  152    fn spawn(
  153        &self,
  154        task: SpawnInTerminal,
  155        window: &mut Window,
  156        cx: &mut App,
  157    ) -> Task<Option<Result<ExitStatus>>>;
  158}
  159
  160pub trait DebuggerProvider {
  161    // `active_buffer` is used to resolve build task's name against language-specific tasks.
  162    fn start_session(
  163        &self,
  164        definition: DebugScenario,
  165        task_context: TaskContext,
  166        active_buffer: Option<Entity<Buffer>>,
  167        worktree_id: Option<WorktreeId>,
  168        window: &mut Window,
  169        cx: &mut App,
  170    );
  171
  172    fn spawn_task_or_modal(
  173        &self,
  174        workspace: &mut Workspace,
  175        action: &Spawn,
  176        window: &mut Window,
  177        cx: &mut Context<Workspace>,
  178    );
  179
  180    fn task_scheduled(&self, cx: &mut App);
  181    fn debug_scenario_scheduled(&self, cx: &mut App);
  182    fn debug_scenario_scheduled_last(&self, cx: &App) -> bool;
  183
  184    fn active_thread_state(&self, cx: &App) -> Option<ThreadStatus>;
  185}
  186
  187actions!(
  188    workspace,
  189    [
  190        /// Activates the next pane in the workspace.
  191        ActivateNextPane,
  192        /// Activates the previous pane in the workspace.
  193        ActivatePreviousPane,
  194        /// Switches to the next window.
  195        ActivateNextWindow,
  196        /// Switches to the previous window.
  197        ActivatePreviousWindow,
  198        /// Adds a folder to the current project.
  199        AddFolderToProject,
  200        /// Clears all notifications.
  201        ClearAllNotifications,
  202        /// Closes the active dock.
  203        CloseActiveDock,
  204        /// Closes all docks.
  205        CloseAllDocks,
  206        /// Toggles all docks.
  207        ToggleAllDocks,
  208        /// Closes the current window.
  209        CloseWindow,
  210        /// Opens the feedback dialog.
  211        Feedback,
  212        /// Follows the next collaborator in the session.
  213        FollowNextCollaborator,
  214        /// Moves the focused panel to the next position.
  215        MoveFocusedPanelToNextPosition,
  216        /// Opens a new terminal in the center.
  217        NewCenterTerminal,
  218        /// Creates a new file.
  219        NewFile,
  220        /// Creates a new file in a vertical split.
  221        NewFileSplitVertical,
  222        /// Creates a new file in a horizontal split.
  223        NewFileSplitHorizontal,
  224        /// Opens a new search.
  225        NewSearch,
  226        /// Opens a new terminal.
  227        NewTerminal,
  228        /// Opens a new window.
  229        NewWindow,
  230        /// Opens a file or directory.
  231        Open,
  232        /// Opens multiple files.
  233        OpenFiles,
  234        /// Opens the current location in terminal.
  235        OpenInTerminal,
  236        /// Opens the component preview.
  237        OpenComponentPreview,
  238        /// Reloads the active item.
  239        ReloadActiveItem,
  240        /// Resets the active dock to its default size.
  241        ResetActiveDockSize,
  242        /// Resets all open docks to their default sizes.
  243        ResetOpenDocksSize,
  244        /// Reloads the application
  245        Reload,
  246        /// Saves the current file with a new name.
  247        SaveAs,
  248        /// Saves without formatting.
  249        SaveWithoutFormat,
  250        /// Shuts down all debug adapters.
  251        ShutdownDebugAdapters,
  252        /// Suppresses the current notification.
  253        SuppressNotification,
  254        /// Toggles the bottom dock.
  255        ToggleBottomDock,
  256        /// Toggles centered layout mode.
  257        ToggleCenteredLayout,
  258        /// Toggles edit prediction feature globally for all files.
  259        ToggleEditPrediction,
  260        /// Toggles the left dock.
  261        ToggleLeftDock,
  262        /// Toggles the right dock.
  263        ToggleRightDock,
  264        /// Toggles zoom on the active pane.
  265        ToggleZoom,
  266        /// Stops following a collaborator.
  267        Unfollow,
  268        /// Restores the banner.
  269        RestoreBanner,
  270        /// Toggles expansion of the selected item.
  271        ToggleExpandItem,
  272    ]
  273);
  274
  275/// Activates a specific pane by its index.
  276#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  277#[action(namespace = workspace)]
  278pub struct ActivatePane(pub usize);
  279
  280/// Moves an item to a specific pane by index.
  281#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  282#[action(namespace = workspace)]
  283#[serde(deny_unknown_fields)]
  284pub struct MoveItemToPane {
  285    #[serde(default = "default_1")]
  286    pub destination: usize,
  287    #[serde(default = "default_true")]
  288    pub focus: bool,
  289    #[serde(default)]
  290    pub clone: bool,
  291}
  292
  293fn default_1() -> usize {
  294    1
  295}
  296
  297/// Moves an item to a pane in the specified direction.
  298#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  299#[action(namespace = workspace)]
  300#[serde(deny_unknown_fields)]
  301pub struct MoveItemToPaneInDirection {
  302    #[serde(default = "default_right")]
  303    pub direction: SplitDirection,
  304    #[serde(default = "default_true")]
  305    pub focus: bool,
  306    #[serde(default)]
  307    pub clone: bool,
  308}
  309
  310/// Creates a new file in a split of the desired direction.
  311#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  312#[action(namespace = workspace)]
  313#[serde(deny_unknown_fields)]
  314pub struct NewFileSplit(pub SplitDirection);
  315
  316fn default_right() -> SplitDirection {
  317    SplitDirection::Right
  318}
  319
  320/// Saves all open files in the workspace.
  321#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  322#[action(namespace = workspace)]
  323#[serde(deny_unknown_fields)]
  324pub struct SaveAll {
  325    #[serde(default)]
  326    pub save_intent: Option<SaveIntent>,
  327}
  328
  329/// Saves the current file with the specified options.
  330#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  331#[action(namespace = workspace)]
  332#[serde(deny_unknown_fields)]
  333pub struct Save {
  334    #[serde(default)]
  335    pub save_intent: Option<SaveIntent>,
  336}
  337
  338/// Closes all items and panes in the workspace.
  339#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  340#[action(namespace = workspace)]
  341#[serde(deny_unknown_fields)]
  342pub struct CloseAllItemsAndPanes {
  343    #[serde(default)]
  344    pub save_intent: Option<SaveIntent>,
  345}
  346
  347/// Closes all inactive tabs and panes in the workspace.
  348#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  349#[action(namespace = workspace)]
  350#[serde(deny_unknown_fields)]
  351pub struct CloseInactiveTabsAndPanes {
  352    #[serde(default)]
  353    pub save_intent: Option<SaveIntent>,
  354}
  355
  356/// Sends a sequence of keystrokes to the active element.
  357#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  358#[action(namespace = workspace)]
  359pub struct SendKeystrokes(pub String);
  360
  361actions!(
  362    project_symbols,
  363    [
  364        /// Toggles the project symbols search.
  365        #[action(name = "Toggle")]
  366        ToggleProjectSymbols
  367    ]
  368);
  369
  370/// Toggles the file finder interface.
  371#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  372#[action(namespace = file_finder, name = "Toggle")]
  373#[serde(deny_unknown_fields)]
  374pub struct ToggleFileFinder {
  375    #[serde(default)]
  376    pub separate_history: bool,
  377}
  378
  379/// Increases size of a currently focused dock by a given amount of pixels.
  380#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  381#[action(namespace = workspace)]
  382#[serde(deny_unknown_fields)]
  383pub struct IncreaseActiveDockSize {
  384    /// For 0px parameter, uses UI font size value.
  385    #[serde(default)]
  386    pub px: u32,
  387}
  388
  389/// Decreases size of a currently focused dock by a given amount of pixels.
  390#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  391#[action(namespace = workspace)]
  392#[serde(deny_unknown_fields)]
  393pub struct DecreaseActiveDockSize {
  394    /// For 0px parameter, uses UI font size value.
  395    #[serde(default)]
  396    pub px: u32,
  397}
  398
  399/// Increases size of all currently visible docks uniformly, by a given amount of pixels.
  400#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  401#[action(namespace = workspace)]
  402#[serde(deny_unknown_fields)]
  403pub struct IncreaseOpenDocksSize {
  404    /// For 0px parameter, uses UI font size value.
  405    #[serde(default)]
  406    pub px: u32,
  407}
  408
  409/// Decreases size of all currently visible docks uniformly, by a given amount of pixels.
  410#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  411#[action(namespace = workspace)]
  412#[serde(deny_unknown_fields)]
  413pub struct DecreaseOpenDocksSize {
  414    /// For 0px parameter, uses UI font size value.
  415    #[serde(default)]
  416    pub px: u32,
  417}
  418
  419actions!(
  420    workspace,
  421    [
  422        /// Activates the pane to the left.
  423        ActivatePaneLeft,
  424        /// Activates the pane to the right.
  425        ActivatePaneRight,
  426        /// Activates the pane above.
  427        ActivatePaneUp,
  428        /// Activates the pane below.
  429        ActivatePaneDown,
  430        /// Swaps the current pane with the one to the left.
  431        SwapPaneLeft,
  432        /// Swaps the current pane with the one to the right.
  433        SwapPaneRight,
  434        /// Swaps the current pane with the one above.
  435        SwapPaneUp,
  436        /// Swaps the current pane with the one below.
  437        SwapPaneDown,
  438        /// Move the current pane to be at the far left.
  439        MovePaneLeft,
  440        /// Move the current pane to be at the far right.
  441        MovePaneRight,
  442        /// Move the current pane to be at the very top.
  443        MovePaneUp,
  444        /// Move the current pane to be at the very bottom.
  445        MovePaneDown,
  446    ]
  447);
  448
  449#[derive(PartialEq, Eq, Debug)]
  450pub enum CloseIntent {
  451    /// Quit the program entirely.
  452    Quit,
  453    /// Close a window.
  454    CloseWindow,
  455    /// Replace the workspace in an existing window.
  456    ReplaceWindow,
  457}
  458
  459#[derive(Clone)]
  460pub struct Toast {
  461    id: NotificationId,
  462    msg: Cow<'static, str>,
  463    autohide: bool,
  464    on_click: Option<(Cow<'static, str>, Arc<dyn Fn(&mut Window, &mut App)>)>,
  465}
  466
  467impl Toast {
  468    pub fn new<I: Into<Cow<'static, str>>>(id: NotificationId, msg: I) -> Self {
  469        Toast {
  470            id,
  471            msg: msg.into(),
  472            on_click: None,
  473            autohide: false,
  474        }
  475    }
  476
  477    pub fn on_click<F, M>(mut self, message: M, on_click: F) -> Self
  478    where
  479        M: Into<Cow<'static, str>>,
  480        F: Fn(&mut Window, &mut App) + 'static,
  481    {
  482        self.on_click = Some((message.into(), Arc::new(on_click)));
  483        self
  484    }
  485
  486    pub fn autohide(mut self) -> Self {
  487        self.autohide = true;
  488        self
  489    }
  490}
  491
  492impl PartialEq for Toast {
  493    fn eq(&self, other: &Self) -> bool {
  494        self.id == other.id
  495            && self.msg == other.msg
  496            && self.on_click.is_some() == other.on_click.is_some()
  497    }
  498}
  499
  500/// Opens a new terminal with the specified working directory.
  501#[derive(Debug, Default, Clone, Deserialize, PartialEq, JsonSchema, Action)]
  502#[action(namespace = workspace)]
  503#[serde(deny_unknown_fields)]
  504pub struct OpenTerminal {
  505    pub working_directory: PathBuf,
  506}
  507
  508#[derive(Clone, Copy, Debug, Default, Hash, PartialEq, Eq, PartialOrd, Ord)]
  509pub struct WorkspaceId(i64);
  510
  511impl StaticColumnCount for WorkspaceId {}
  512impl Bind for WorkspaceId {
  513    fn bind(&self, statement: &Statement, start_index: i32) -> Result<i32> {
  514        self.0.bind(statement, start_index)
  515    }
  516}
  517impl Column for WorkspaceId {
  518    fn column(statement: &mut Statement, start_index: i32) -> Result<(Self, i32)> {
  519        i64::column(statement, start_index)
  520            .map(|(i, next_index)| (Self(i), next_index))
  521            .with_context(|| format!("Failed to read WorkspaceId at index {start_index}"))
  522    }
  523}
  524impl From<WorkspaceId> for i64 {
  525    fn from(val: WorkspaceId) -> Self {
  526        val.0
  527    }
  528}
  529
  530pub fn init_settings(cx: &mut App) {
  531    WorkspaceSettings::register(cx);
  532    ItemSettings::register(cx);
  533    PreviewTabsSettings::register(cx);
  534    TabBarSettings::register(cx);
  535    StatusBarSettings::register(cx);
  536}
  537
  538fn prompt_and_open_paths(app_state: Arc<AppState>, options: PathPromptOptions, cx: &mut App) {
  539    let paths = cx.prompt_for_paths(options);
  540    cx.spawn(
  541        async move |cx| match paths.await.anyhow().and_then(|res| res) {
  542            Ok(Some(paths)) => {
  543                cx.update(|cx| {
  544                    open_paths(&paths, app_state, OpenOptions::default(), cx).detach_and_log_err(cx)
  545                })
  546                .ok();
  547            }
  548            Ok(None) => {}
  549            Err(err) => {
  550                util::log_err(&err);
  551                cx.update(|cx| {
  552                    if let Some(workspace_window) = cx
  553                        .active_window()
  554                        .and_then(|window| window.downcast::<Workspace>())
  555                    {
  556                        workspace_window
  557                            .update(cx, |workspace, _, cx| {
  558                                workspace.show_portal_error(err.to_string(), cx);
  559                            })
  560                            .ok();
  561                    }
  562                })
  563                .ok();
  564            }
  565        },
  566    )
  567    .detach();
  568}
  569
  570pub fn init(app_state: Arc<AppState>, cx: &mut App) {
  571    init_settings(cx);
  572    component::init();
  573    theme_preview::init(cx);
  574    toast_layer::init(cx);
  575    history_manager::init(cx);
  576
  577    cx.on_action(|_: &CloseWindow, cx| Workspace::close_global(cx));
  578    cx.on_action(|_: &Reload, cx| reload(cx));
  579
  580    cx.on_action({
  581        let app_state = Arc::downgrade(&app_state);
  582        move |_: &Open, cx: &mut App| {
  583            if let Some(app_state) = app_state.upgrade() {
  584                prompt_and_open_paths(
  585                    app_state,
  586                    PathPromptOptions {
  587                        files: true,
  588                        directories: true,
  589                        multiple: true,
  590                        prompt: None,
  591                    },
  592                    cx,
  593                );
  594            }
  595        }
  596    });
  597    cx.on_action({
  598        let app_state = Arc::downgrade(&app_state);
  599        move |_: &OpenFiles, cx: &mut App| {
  600            let directories = cx.can_select_mixed_files_and_dirs();
  601            if let Some(app_state) = app_state.upgrade() {
  602                prompt_and_open_paths(
  603                    app_state,
  604                    PathPromptOptions {
  605                        files: true,
  606                        directories,
  607                        multiple: true,
  608                        prompt: None,
  609                    },
  610                    cx,
  611                );
  612            }
  613        }
  614    });
  615}
  616
  617type BuildProjectItemFn =
  618    fn(AnyEntity, Entity<Project>, Option<&Pane>, &mut Window, &mut App) -> Box<dyn ItemHandle>;
  619
  620type BuildProjectItemForPathFn =
  621    fn(
  622        &Entity<Project>,
  623        &ProjectPath,
  624        &mut Window,
  625        &mut App,
  626    ) -> Option<Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>>>;
  627
  628#[derive(Clone, Default)]
  629struct ProjectItemRegistry {
  630    build_project_item_fns_by_type: HashMap<TypeId, BuildProjectItemFn>,
  631    build_project_item_for_path_fns: Vec<BuildProjectItemForPathFn>,
  632}
  633
  634impl ProjectItemRegistry {
  635    fn register<T: ProjectItem>(&mut self) {
  636        self.build_project_item_fns_by_type.insert(
  637            TypeId::of::<T::Item>(),
  638            |item, project, pane, window, cx| {
  639                let item = item.downcast().unwrap();
  640                Box::new(cx.new(|cx| T::for_project_item(project, pane, item, window, cx)))
  641                    as Box<dyn ItemHandle>
  642            },
  643        );
  644        self.build_project_item_for_path_fns
  645            .push(|project, project_path, window, cx| {
  646                let project_path = project_path.clone();
  647                let is_file = project
  648                    .read(cx)
  649                    .entry_for_path(&project_path, cx)
  650                    .is_some_and(|entry| entry.is_file());
  651                let entry_abs_path = project.read(cx).absolute_path(&project_path, cx);
  652                let is_local = project.read(cx).is_local();
  653                let project_item =
  654                    <T::Item as project::ProjectItem>::try_open(project, &project_path, cx)?;
  655                let project = project.clone();
  656                Some(window.spawn(cx, async move |cx| {
  657                    match project_item.await.with_context(|| {
  658                        format!(
  659                            "opening project path {:?}",
  660                            entry_abs_path.as_deref().unwrap_or(&project_path.path.as_std_path())
  661                        )
  662                    }) {
  663                        Ok(project_item) => {
  664                            let project_item = project_item;
  665                            let project_entry_id: Option<ProjectEntryId> =
  666                                project_item.read_with(cx, project::ProjectItem::entry_id)?;
  667                            let build_workspace_item = Box::new(
  668                                |pane: &mut Pane, window: &mut Window, cx: &mut Context<Pane>| {
  669                                    Box::new(cx.new(|cx| {
  670                                        T::for_project_item(
  671                                            project,
  672                                            Some(pane),
  673                                            project_item,
  674                                            window,
  675                                            cx,
  676                                        )
  677                                    })) as Box<dyn ItemHandle>
  678                                },
  679                            ) as Box<_>;
  680                            Ok((project_entry_id, build_workspace_item))
  681                        }
  682                        Err(e) => {
  683                            if e.error_code() == ErrorCode::Internal {
  684                                if let Some(abs_path) =
  685                                    entry_abs_path.as_deref().filter(|_| is_file)
  686                                {
  687                                    if let Some(broken_project_item_view) =
  688                                        cx.update(|window, cx| {
  689                                            T::for_broken_project_item(
  690                                                abs_path, is_local, &e, window, cx,
  691                                            )
  692                                        })?
  693                                    {
  694                                        let build_workspace_item = Box::new(
  695                                            move |_: &mut Pane, _: &mut Window, cx: &mut Context<Pane>| {
  696                                                cx.new(|_| broken_project_item_view).boxed_clone()
  697                                            },
  698                                        )
  699                                        as Box<_>;
  700                                        return Ok((None, build_workspace_item));
  701                                    }
  702                                }
  703                            }
  704                            Err(e)
  705                        }
  706                    }
  707                }))
  708            });
  709    }
  710
  711    fn open_path(
  712        &self,
  713        project: &Entity<Project>,
  714        path: &ProjectPath,
  715        window: &mut Window,
  716        cx: &mut App,
  717    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
  718        let Some(open_project_item) = self
  719            .build_project_item_for_path_fns
  720            .iter()
  721            .rev()
  722            .find_map(|open_project_item| open_project_item(project, path, window, cx))
  723        else {
  724            return Task::ready(Err(anyhow!("cannot open file {:?}", path.path)));
  725        };
  726        open_project_item
  727    }
  728
  729    fn build_item<T: project::ProjectItem>(
  730        &self,
  731        item: Entity<T>,
  732        project: Entity<Project>,
  733        pane: Option<&Pane>,
  734        window: &mut Window,
  735        cx: &mut App,
  736    ) -> Option<Box<dyn ItemHandle>> {
  737        let build = self
  738            .build_project_item_fns_by_type
  739            .get(&TypeId::of::<T>())?;
  740        Some(build(item.into_any(), project, pane, window, cx))
  741    }
  742}
  743
  744type WorkspaceItemBuilder =
  745    Box<dyn FnOnce(&mut Pane, &mut Window, &mut Context<Pane>) -> Box<dyn ItemHandle>>;
  746
  747impl Global for ProjectItemRegistry {}
  748
  749/// Registers a [ProjectItem] for the app. When opening a file, all the registered
  750/// items will get a chance to open the file, starting from the project item that
  751/// was added last.
  752pub fn register_project_item<I: ProjectItem>(cx: &mut App) {
  753    cx.default_global::<ProjectItemRegistry>().register::<I>();
  754}
  755
  756#[derive(Default)]
  757pub struct FollowableViewRegistry(HashMap<TypeId, FollowableViewDescriptor>);
  758
  759struct FollowableViewDescriptor {
  760    from_state_proto: fn(
  761        Entity<Workspace>,
  762        ViewId,
  763        &mut Option<proto::view::Variant>,
  764        &mut Window,
  765        &mut App,
  766    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>>,
  767    to_followable_view: fn(&AnyView) -> Box<dyn FollowableItemHandle>,
  768}
  769
  770impl Global for FollowableViewRegistry {}
  771
  772impl FollowableViewRegistry {
  773    pub fn register<I: FollowableItem>(cx: &mut App) {
  774        cx.default_global::<Self>().0.insert(
  775            TypeId::of::<I>(),
  776            FollowableViewDescriptor {
  777                from_state_proto: |workspace, id, state, window, cx| {
  778                    I::from_state_proto(workspace, id, state, window, cx).map(|task| {
  779                        cx.foreground_executor()
  780                            .spawn(async move { Ok(Box::new(task.await?) as Box<_>) })
  781                    })
  782                },
  783                to_followable_view: |view| Box::new(view.clone().downcast::<I>().unwrap()),
  784            },
  785        );
  786    }
  787
  788    pub fn from_state_proto(
  789        workspace: Entity<Workspace>,
  790        view_id: ViewId,
  791        mut state: Option<proto::view::Variant>,
  792        window: &mut Window,
  793        cx: &mut App,
  794    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>> {
  795        cx.update_default_global(|this: &mut Self, cx| {
  796            this.0.values().find_map(|descriptor| {
  797                (descriptor.from_state_proto)(workspace.clone(), view_id, &mut state, window, cx)
  798            })
  799        })
  800    }
  801
  802    pub fn to_followable_view(
  803        view: impl Into<AnyView>,
  804        cx: &App,
  805    ) -> Option<Box<dyn FollowableItemHandle>> {
  806        let this = cx.try_global::<Self>()?;
  807        let view = view.into();
  808        let descriptor = this.0.get(&view.entity_type())?;
  809        Some((descriptor.to_followable_view)(&view))
  810    }
  811}
  812
  813#[derive(Copy, Clone)]
  814struct SerializableItemDescriptor {
  815    deserialize: fn(
  816        Entity<Project>,
  817        WeakEntity<Workspace>,
  818        WorkspaceId,
  819        ItemId,
  820        &mut Window,
  821        &mut Context<Pane>,
  822    ) -> Task<Result<Box<dyn ItemHandle>>>,
  823    cleanup: fn(WorkspaceId, Vec<ItemId>, &mut Window, &mut App) -> Task<Result<()>>,
  824    view_to_serializable_item: fn(AnyView) -> Box<dyn SerializableItemHandle>,
  825}
  826
  827#[derive(Default)]
  828struct SerializableItemRegistry {
  829    descriptors_by_kind: HashMap<Arc<str>, SerializableItemDescriptor>,
  830    descriptors_by_type: HashMap<TypeId, SerializableItemDescriptor>,
  831}
  832
  833impl Global for SerializableItemRegistry {}
  834
  835impl SerializableItemRegistry {
  836    fn deserialize(
  837        item_kind: &str,
  838        project: Entity<Project>,
  839        workspace: WeakEntity<Workspace>,
  840        workspace_id: WorkspaceId,
  841        item_item: ItemId,
  842        window: &mut Window,
  843        cx: &mut Context<Pane>,
  844    ) -> Task<Result<Box<dyn ItemHandle>>> {
  845        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
  846            return Task::ready(Err(anyhow!(
  847                "cannot deserialize {}, descriptor not found",
  848                item_kind
  849            )));
  850        };
  851
  852        (descriptor.deserialize)(project, workspace, workspace_id, item_item, window, cx)
  853    }
  854
  855    fn cleanup(
  856        item_kind: &str,
  857        workspace_id: WorkspaceId,
  858        loaded_items: Vec<ItemId>,
  859        window: &mut Window,
  860        cx: &mut App,
  861    ) -> Task<Result<()>> {
  862        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
  863            return Task::ready(Err(anyhow!(
  864                "cannot cleanup {}, descriptor not found",
  865                item_kind
  866            )));
  867        };
  868
  869        (descriptor.cleanup)(workspace_id, loaded_items, window, cx)
  870    }
  871
  872    fn view_to_serializable_item_handle(
  873        view: AnyView,
  874        cx: &App,
  875    ) -> Option<Box<dyn SerializableItemHandle>> {
  876        let this = cx.try_global::<Self>()?;
  877        let descriptor = this.descriptors_by_type.get(&view.entity_type())?;
  878        Some((descriptor.view_to_serializable_item)(view))
  879    }
  880
  881    fn descriptor(item_kind: &str, cx: &App) -> Option<SerializableItemDescriptor> {
  882        let this = cx.try_global::<Self>()?;
  883        this.descriptors_by_kind.get(item_kind).copied()
  884    }
  885}
  886
  887pub fn register_serializable_item<I: SerializableItem>(cx: &mut App) {
  888    let serialized_item_kind = I::serialized_item_kind();
  889
  890    let registry = cx.default_global::<SerializableItemRegistry>();
  891    let descriptor = SerializableItemDescriptor {
  892        deserialize: |project, workspace, workspace_id, item_id, window, cx| {
  893            let task = I::deserialize(project, workspace, workspace_id, item_id, window, cx);
  894            cx.foreground_executor()
  895                .spawn(async { Ok(Box::new(task.await?) as Box<_>) })
  896        },
  897        cleanup: |workspace_id, loaded_items, window, cx| {
  898            I::cleanup(workspace_id, loaded_items, window, cx)
  899        },
  900        view_to_serializable_item: |view| Box::new(view.downcast::<I>().unwrap()),
  901    };
  902    registry
  903        .descriptors_by_kind
  904        .insert(Arc::from(serialized_item_kind), descriptor);
  905    registry
  906        .descriptors_by_type
  907        .insert(TypeId::of::<I>(), descriptor);
  908}
  909
  910pub struct AppState {
  911    pub languages: Arc<LanguageRegistry>,
  912    pub client: Arc<Client>,
  913    pub user_store: Entity<UserStore>,
  914    pub workspace_store: Entity<WorkspaceStore>,
  915    pub fs: Arc<dyn fs::Fs>,
  916    pub build_window_options: fn(Option<Uuid>, &mut App) -> WindowOptions,
  917    pub node_runtime: NodeRuntime,
  918    pub session: Entity<AppSession>,
  919}
  920
  921struct GlobalAppState(Weak<AppState>);
  922
  923impl Global for GlobalAppState {}
  924
  925pub struct WorkspaceStore {
  926    workspaces: HashSet<WindowHandle<Workspace>>,
  927    client: Arc<Client>,
  928    _subscriptions: Vec<client::Subscription>,
  929}
  930
  931#[derive(Copy, Clone, Debug, Hash, Eq, PartialEq, PartialOrd, Ord)]
  932pub enum CollaboratorId {
  933    PeerId(PeerId),
  934    Agent,
  935}
  936
  937impl From<PeerId> for CollaboratorId {
  938    fn from(peer_id: PeerId) -> Self {
  939        CollaboratorId::PeerId(peer_id)
  940    }
  941}
  942
  943impl From<&PeerId> for CollaboratorId {
  944    fn from(peer_id: &PeerId) -> Self {
  945        CollaboratorId::PeerId(*peer_id)
  946    }
  947}
  948
  949#[derive(PartialEq, Eq, PartialOrd, Ord, Debug)]
  950struct Follower {
  951    project_id: Option<u64>,
  952    peer_id: PeerId,
  953}
  954
  955impl AppState {
  956    #[track_caller]
  957    pub fn global(cx: &App) -> Weak<Self> {
  958        cx.global::<GlobalAppState>().0.clone()
  959    }
  960    pub fn try_global(cx: &App) -> Option<Weak<Self>> {
  961        cx.try_global::<GlobalAppState>()
  962            .map(|state| state.0.clone())
  963    }
  964    pub fn set_global(state: Weak<AppState>, cx: &mut App) {
  965        cx.set_global(GlobalAppState(state));
  966    }
  967
  968    #[cfg(any(test, feature = "test-support"))]
  969    pub fn test(cx: &mut App) -> Arc<Self> {
  970        use node_runtime::NodeRuntime;
  971        use session::Session;
  972        use settings::SettingsStore;
  973
  974        if !cx.has_global::<SettingsStore>() {
  975            let settings_store = SettingsStore::test(cx);
  976            cx.set_global(settings_store);
  977        }
  978
  979        let fs = fs::FakeFs::new(cx.background_executor().clone());
  980        let languages = Arc::new(LanguageRegistry::test(cx.background_executor().clone()));
  981        let clock = Arc::new(clock::FakeSystemClock::new());
  982        let http_client = http_client::FakeHttpClient::with_404_response();
  983        let client = Client::new(clock, http_client, cx);
  984        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
  985        let user_store = cx.new(|cx| UserStore::new(client.clone(), cx));
  986        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
  987
  988        theme::init(theme::LoadThemes::JustBase, cx);
  989        client::init(&client, cx);
  990        crate::init_settings(cx);
  991
  992        Arc::new(Self {
  993            client,
  994            fs,
  995            languages,
  996            user_store,
  997            workspace_store,
  998            node_runtime: NodeRuntime::unavailable(),
  999            build_window_options: |_, _| Default::default(),
 1000            session,
 1001        })
 1002    }
 1003}
 1004
 1005struct DelayedDebouncedEditAction {
 1006    task: Option<Task<()>>,
 1007    cancel_channel: Option<oneshot::Sender<()>>,
 1008}
 1009
 1010impl DelayedDebouncedEditAction {
 1011    fn new() -> DelayedDebouncedEditAction {
 1012        DelayedDebouncedEditAction {
 1013            task: None,
 1014            cancel_channel: None,
 1015        }
 1016    }
 1017
 1018    fn fire_new<F>(
 1019        &mut self,
 1020        delay: Duration,
 1021        window: &mut Window,
 1022        cx: &mut Context<Workspace>,
 1023        func: F,
 1024    ) where
 1025        F: 'static
 1026            + Send
 1027            + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> Task<Result<()>>,
 1028    {
 1029        if let Some(channel) = self.cancel_channel.take() {
 1030            _ = channel.send(());
 1031        }
 1032
 1033        let (sender, mut receiver) = oneshot::channel::<()>();
 1034        self.cancel_channel = Some(sender);
 1035
 1036        let previous_task = self.task.take();
 1037        self.task = Some(cx.spawn_in(window, async move |workspace, cx| {
 1038            let mut timer = cx.background_executor().timer(delay).fuse();
 1039            if let Some(previous_task) = previous_task {
 1040                previous_task.await;
 1041            }
 1042
 1043            futures::select_biased! {
 1044                _ = receiver => return,
 1045                    _ = timer => {}
 1046            }
 1047
 1048            if let Some(result) = workspace
 1049                .update_in(cx, |workspace, window, cx| (func)(workspace, window, cx))
 1050                .log_err()
 1051            {
 1052                result.await.log_err();
 1053            }
 1054        }));
 1055    }
 1056}
 1057
 1058pub enum Event {
 1059    PaneAdded(Entity<Pane>),
 1060    PaneRemoved,
 1061    ItemAdded {
 1062        item: Box<dyn ItemHandle>,
 1063    },
 1064    ActiveItemChanged,
 1065    ItemRemoved {
 1066        item_id: EntityId,
 1067    },
 1068    UserSavedItem {
 1069        pane: WeakEntity<Pane>,
 1070        item: Box<dyn WeakItemHandle>,
 1071        save_intent: SaveIntent,
 1072    },
 1073    ContactRequestedJoin(u64),
 1074    WorkspaceCreated(WeakEntity<Workspace>),
 1075    OpenBundledFile {
 1076        text: Cow<'static, str>,
 1077        title: &'static str,
 1078        language: &'static str,
 1079    },
 1080    ZoomChanged,
 1081    ModalOpened,
 1082}
 1083
 1084#[derive(Debug)]
 1085pub enum OpenVisible {
 1086    All,
 1087    None,
 1088    OnlyFiles,
 1089    OnlyDirectories,
 1090}
 1091
 1092enum WorkspaceLocation {
 1093    // Valid local paths or SSH project to serialize
 1094    Location(SerializedWorkspaceLocation, PathList),
 1095    // No valid location found hence clear session id
 1096    DetachFromSession,
 1097    // No valid location found to serialize
 1098    None,
 1099}
 1100
 1101type PromptForNewPath = Box<
 1102    dyn Fn(
 1103        &mut Workspace,
 1104        DirectoryLister,
 1105        &mut Window,
 1106        &mut Context<Workspace>,
 1107    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1108>;
 1109
 1110type PromptForOpenPath = Box<
 1111    dyn Fn(
 1112        &mut Workspace,
 1113        DirectoryLister,
 1114        &mut Window,
 1115        &mut Context<Workspace>,
 1116    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1117>;
 1118
 1119#[derive(Default)]
 1120struct DispatchingKeystrokes {
 1121    dispatched: HashSet<Vec<Keystroke>>,
 1122    queue: VecDeque<Keystroke>,
 1123    task: Option<Shared<Task<()>>>,
 1124}
 1125
 1126/// Collects everything project-related for a certain window opened.
 1127/// In some way, is a counterpart of a window, as the [`WindowHandle`] could be downcast into `Workspace`.
 1128///
 1129/// A `Workspace` usually consists of 1 or more projects, a central pane group, 3 docks and a status bar.
 1130/// The `Workspace` owns everybody's state and serves as a default, "global context",
 1131/// that can be used to register a global action to be triggered from any place in the window.
 1132pub struct Workspace {
 1133    weak_self: WeakEntity<Self>,
 1134    workspace_actions: Vec<Box<dyn Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div>>,
 1135    zoomed: Option<AnyWeakView>,
 1136    previous_dock_drag_coordinates: Option<Point<Pixels>>,
 1137    zoomed_position: Option<DockPosition>,
 1138    center: PaneGroup,
 1139    left_dock: Entity<Dock>,
 1140    bottom_dock: Entity<Dock>,
 1141    right_dock: Entity<Dock>,
 1142    panes: Vec<Entity<Pane>>,
 1143    panes_by_item: HashMap<EntityId, WeakEntity<Pane>>,
 1144    active_pane: Entity<Pane>,
 1145    last_active_center_pane: Option<WeakEntity<Pane>>,
 1146    last_active_view_id: Option<proto::ViewId>,
 1147    status_bar: Entity<StatusBar>,
 1148    modal_layer: Entity<ModalLayer>,
 1149    toast_layer: Entity<ToastLayer>,
 1150    titlebar_item: Option<AnyView>,
 1151    notifications: Notifications,
 1152    suppressed_notifications: HashSet<NotificationId>,
 1153    project: Entity<Project>,
 1154    follower_states: HashMap<CollaboratorId, FollowerState>,
 1155    last_leaders_by_pane: HashMap<WeakEntity<Pane>, CollaboratorId>,
 1156    window_edited: bool,
 1157    last_window_title: Option<String>,
 1158    dirty_items: HashMap<EntityId, Subscription>,
 1159    active_call: Option<(Entity<ActiveCall>, Vec<Subscription>)>,
 1160    leader_updates_tx: mpsc::UnboundedSender<(PeerId, proto::UpdateFollowers)>,
 1161    database_id: Option<WorkspaceId>,
 1162    app_state: Arc<AppState>,
 1163    dispatching_keystrokes: Rc<RefCell<DispatchingKeystrokes>>,
 1164    _subscriptions: Vec<Subscription>,
 1165    _apply_leader_updates: Task<Result<()>>,
 1166    _observe_current_user: Task<Result<()>>,
 1167    _schedule_serialize_workspace: Option<Task<()>>,
 1168    _schedule_serialize_ssh_paths: Option<Task<()>>,
 1169    pane_history_timestamp: Arc<AtomicUsize>,
 1170    bounds: Bounds<Pixels>,
 1171    pub centered_layout: bool,
 1172    bounds_save_task_queued: Option<Task<()>>,
 1173    on_prompt_for_new_path: Option<PromptForNewPath>,
 1174    on_prompt_for_open_path: Option<PromptForOpenPath>,
 1175    terminal_provider: Option<Box<dyn TerminalProvider>>,
 1176    debugger_provider: Option<Arc<dyn DebuggerProvider>>,
 1177    serializable_items_tx: UnboundedSender<Box<dyn SerializableItemHandle>>,
 1178    _items_serializer: Task<Result<()>>,
 1179    session_id: Option<String>,
 1180    scheduled_tasks: Vec<Task<()>>,
 1181    last_open_dock_positions: Vec<DockPosition>,
 1182    removing: bool,
 1183}
 1184
 1185impl EventEmitter<Event> for Workspace {}
 1186
 1187#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
 1188pub struct ViewId {
 1189    pub creator: CollaboratorId,
 1190    pub id: u64,
 1191}
 1192
 1193pub struct FollowerState {
 1194    center_pane: Entity<Pane>,
 1195    dock_pane: Option<Entity<Pane>>,
 1196    active_view_id: Option<ViewId>,
 1197    items_by_leader_view_id: HashMap<ViewId, FollowerView>,
 1198}
 1199
 1200struct FollowerView {
 1201    view: Box<dyn FollowableItemHandle>,
 1202    location: Option<proto::PanelId>,
 1203}
 1204
 1205impl Workspace {
 1206    pub fn new(
 1207        workspace_id: Option<WorkspaceId>,
 1208        project: Entity<Project>,
 1209        app_state: Arc<AppState>,
 1210        window: &mut Window,
 1211        cx: &mut Context<Self>,
 1212    ) -> Self {
 1213        cx.subscribe_in(&project, window, move |this, _, event, window, cx| {
 1214            match event {
 1215                project::Event::RemoteIdChanged(_) => {
 1216                    this.update_window_title(window, cx);
 1217                }
 1218
 1219                project::Event::CollaboratorLeft(peer_id) => {
 1220                    this.collaborator_left(*peer_id, window, cx);
 1221                }
 1222
 1223                project::Event::WorktreeRemoved(_) | project::Event::WorktreeAdded(_) => {
 1224                    this.update_window_title(window, cx);
 1225                    this.serialize_workspace(window, cx);
 1226                    // This event could be triggered by `AddFolderToProject` or `RemoveFromProject`.
 1227                    this.update_history(cx);
 1228                }
 1229
 1230                project::Event::DisconnectedFromHost => {
 1231                    this.update_window_edited(window, cx);
 1232                    let leaders_to_unfollow =
 1233                        this.follower_states.keys().copied().collect::<Vec<_>>();
 1234                    for leader_id in leaders_to_unfollow {
 1235                        this.unfollow(leader_id, window, cx);
 1236                    }
 1237                }
 1238
 1239                project::Event::DisconnectedFromSshRemote => {
 1240                    this.update_window_edited(window, cx);
 1241                }
 1242
 1243                project::Event::Closed => {
 1244                    window.remove_window();
 1245                }
 1246
 1247                project::Event::DeletedEntry(_, entry_id) => {
 1248                    for pane in this.panes.iter() {
 1249                        pane.update(cx, |pane, cx| {
 1250                            pane.handle_deleted_project_item(*entry_id, window, cx)
 1251                        });
 1252                    }
 1253                }
 1254
 1255                project::Event::Toast {
 1256                    notification_id,
 1257                    message,
 1258                } => this.show_notification(
 1259                    NotificationId::named(notification_id.clone()),
 1260                    cx,
 1261                    |cx| cx.new(|cx| MessageNotification::new(message.clone(), cx)),
 1262                ),
 1263
 1264                project::Event::HideToast { notification_id } => {
 1265                    this.dismiss_notification(&NotificationId::named(notification_id.clone()), cx)
 1266                }
 1267
 1268                project::Event::LanguageServerPrompt(request) => {
 1269                    struct LanguageServerPrompt;
 1270
 1271                    let mut hasher = DefaultHasher::new();
 1272                    request.lsp_name.as_str().hash(&mut hasher);
 1273                    let id = hasher.finish();
 1274
 1275                    this.show_notification(
 1276                        NotificationId::composite::<LanguageServerPrompt>(id as usize),
 1277                        cx,
 1278                        |cx| {
 1279                            cx.new(|cx| {
 1280                                notifications::LanguageServerPrompt::new(request.clone(), cx)
 1281                            })
 1282                        },
 1283                    );
 1284                }
 1285
 1286                project::Event::AgentLocationChanged => {
 1287                    this.handle_agent_location_changed(window, cx)
 1288                }
 1289
 1290                _ => {}
 1291            }
 1292            cx.notify()
 1293        })
 1294        .detach();
 1295
 1296        cx.subscribe_in(
 1297            &project.read(cx).breakpoint_store(),
 1298            window,
 1299            |workspace, _, event, window, cx| match event {
 1300                BreakpointStoreEvent::BreakpointsUpdated(_, _)
 1301                | BreakpointStoreEvent::BreakpointsCleared(_) => {
 1302                    workspace.serialize_workspace(window, cx);
 1303                }
 1304                BreakpointStoreEvent::SetDebugLine | BreakpointStoreEvent::ClearDebugLines => {}
 1305            },
 1306        )
 1307        .detach();
 1308        if let Some(toolchain_store) = project.read(cx).toolchain_store() {
 1309            cx.subscribe_in(
 1310                &toolchain_store,
 1311                window,
 1312                |workspace, _, event, window, cx| match event {
 1313                    ToolchainStoreEvent::CustomToolchainsModified => {
 1314                        workspace.serialize_workspace(window, cx);
 1315                    }
 1316                    _ => {}
 1317                },
 1318            )
 1319            .detach();
 1320        }
 1321
 1322        cx.on_focus_lost(window, |this, window, cx| {
 1323            let focus_handle = this.focus_handle(cx);
 1324            window.focus(&focus_handle);
 1325        })
 1326        .detach();
 1327
 1328        let weak_handle = cx.entity().downgrade();
 1329        let pane_history_timestamp = Arc::new(AtomicUsize::new(0));
 1330
 1331        let center_pane = cx.new(|cx| {
 1332            let mut center_pane = Pane::new(
 1333                weak_handle.clone(),
 1334                project.clone(),
 1335                pane_history_timestamp.clone(),
 1336                None,
 1337                NewFile.boxed_clone(),
 1338                true,
 1339                window,
 1340                cx,
 1341            );
 1342            center_pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 1343            center_pane
 1344        });
 1345        cx.subscribe_in(&center_pane, window, Self::handle_pane_event)
 1346            .detach();
 1347
 1348        window.focus(&center_pane.focus_handle(cx));
 1349
 1350        cx.emit(Event::PaneAdded(center_pane.clone()));
 1351
 1352        let window_handle = window.window_handle().downcast::<Workspace>().unwrap();
 1353        app_state.workspace_store.update(cx, |store, _| {
 1354            store.workspaces.insert(window_handle);
 1355        });
 1356
 1357        let mut current_user = app_state.user_store.read(cx).watch_current_user();
 1358        let mut connection_status = app_state.client.status();
 1359        let _observe_current_user = cx.spawn_in(window, async move |this, cx| {
 1360            current_user.next().await;
 1361            connection_status.next().await;
 1362            let mut stream =
 1363                Stream::map(current_user, drop).merge(Stream::map(connection_status, drop));
 1364
 1365            while stream.recv().await.is_some() {
 1366                this.update(cx, |_, cx| cx.notify())?;
 1367            }
 1368            anyhow::Ok(())
 1369        });
 1370
 1371        // All leader updates are enqueued and then processed in a single task, so
 1372        // that each asynchronous operation can be run in order.
 1373        let (leader_updates_tx, mut leader_updates_rx) =
 1374            mpsc::unbounded::<(PeerId, proto::UpdateFollowers)>();
 1375        let _apply_leader_updates = cx.spawn_in(window, async move |this, cx| {
 1376            while let Some((leader_id, update)) = leader_updates_rx.next().await {
 1377                Self::process_leader_update(&this, leader_id, update, cx)
 1378                    .await
 1379                    .log_err();
 1380            }
 1381
 1382            Ok(())
 1383        });
 1384
 1385        cx.emit(Event::WorkspaceCreated(weak_handle.clone()));
 1386        let modal_layer = cx.new(|_| ModalLayer::new());
 1387        let toast_layer = cx.new(|_| ToastLayer::new());
 1388        cx.subscribe(
 1389            &modal_layer,
 1390            |_, _, _: &modal_layer::ModalOpenedEvent, cx| {
 1391                cx.emit(Event::ModalOpened);
 1392            },
 1393        )
 1394        .detach();
 1395
 1396        let left_dock = Dock::new(DockPosition::Left, modal_layer.clone(), window, cx);
 1397        let bottom_dock = Dock::new(DockPosition::Bottom, modal_layer.clone(), window, cx);
 1398        let right_dock = Dock::new(DockPosition::Right, modal_layer.clone(), window, cx);
 1399        let left_dock_buttons = cx.new(|cx| PanelButtons::new(left_dock.clone(), cx));
 1400        let bottom_dock_buttons = cx.new(|cx| PanelButtons::new(bottom_dock.clone(), cx));
 1401        let right_dock_buttons = cx.new(|cx| PanelButtons::new(right_dock.clone(), cx));
 1402        let status_bar = cx.new(|cx| {
 1403            let mut status_bar = StatusBar::new(&center_pane.clone(), window, cx);
 1404            status_bar.add_left_item(left_dock_buttons, window, cx);
 1405            status_bar.add_right_item(right_dock_buttons, window, cx);
 1406            status_bar.add_right_item(bottom_dock_buttons, window, cx);
 1407            status_bar
 1408        });
 1409
 1410        let session_id = app_state.session.read(cx).id().to_owned();
 1411
 1412        let mut active_call = None;
 1413        if let Some(call) = ActiveCall::try_global(cx) {
 1414            let subscriptions = vec![cx.subscribe_in(&call, window, Self::on_active_call_event)];
 1415            active_call = Some((call, subscriptions));
 1416        }
 1417
 1418        let (serializable_items_tx, serializable_items_rx) =
 1419            mpsc::unbounded::<Box<dyn SerializableItemHandle>>();
 1420        let _items_serializer = cx.spawn_in(window, async move |this, cx| {
 1421            Self::serialize_items(&this, serializable_items_rx, cx).await
 1422        });
 1423
 1424        let subscriptions = vec![
 1425            cx.observe_window_activation(window, Self::on_window_activation_changed),
 1426            cx.observe_window_bounds(window, move |this, window, cx| {
 1427                if this.bounds_save_task_queued.is_some() {
 1428                    return;
 1429                }
 1430                this.bounds_save_task_queued = Some(cx.spawn_in(window, async move |this, cx| {
 1431                    cx.background_executor()
 1432                        .timer(Duration::from_millis(100))
 1433                        .await;
 1434                    this.update_in(cx, |this, window, cx| {
 1435                        if let Some(display) = window.display(cx)
 1436                            && let Ok(display_uuid) = display.uuid()
 1437                        {
 1438                            let window_bounds = window.inner_window_bounds();
 1439                            if let Some(database_id) = workspace_id {
 1440                                cx.background_executor()
 1441                                    .spawn(DB.set_window_open_status(
 1442                                        database_id,
 1443                                        SerializedWindowBounds(window_bounds),
 1444                                        display_uuid,
 1445                                    ))
 1446                                    .detach_and_log_err(cx);
 1447                            }
 1448                        }
 1449                        this.bounds_save_task_queued.take();
 1450                    })
 1451                    .ok();
 1452                }));
 1453                cx.notify();
 1454            }),
 1455            cx.observe_window_appearance(window, |_, window, cx| {
 1456                let window_appearance = window.appearance();
 1457
 1458                *SystemAppearance::global_mut(cx) = SystemAppearance(window_appearance.into());
 1459
 1460                GlobalTheme::reload_theme(cx);
 1461                GlobalTheme::reload_icon_theme(cx);
 1462            }),
 1463            cx.on_release(move |this, cx| {
 1464                this.app_state.workspace_store.update(cx, move |store, _| {
 1465                    store.workspaces.remove(&window_handle);
 1466                })
 1467            }),
 1468        ];
 1469
 1470        cx.defer_in(window, |this, window, cx| {
 1471            this.update_window_title(window, cx);
 1472            this.show_initial_notifications(cx);
 1473        });
 1474        Workspace {
 1475            weak_self: weak_handle.clone(),
 1476            zoomed: None,
 1477            zoomed_position: None,
 1478            previous_dock_drag_coordinates: None,
 1479            center: PaneGroup::new(center_pane.clone()),
 1480            panes: vec![center_pane.clone()],
 1481            panes_by_item: Default::default(),
 1482            active_pane: center_pane.clone(),
 1483            last_active_center_pane: Some(center_pane.downgrade()),
 1484            last_active_view_id: None,
 1485            status_bar,
 1486            modal_layer,
 1487            toast_layer,
 1488            titlebar_item: None,
 1489            notifications: Notifications::default(),
 1490            suppressed_notifications: HashSet::default(),
 1491            left_dock,
 1492            bottom_dock,
 1493            right_dock,
 1494            project: project.clone(),
 1495            follower_states: Default::default(),
 1496            last_leaders_by_pane: Default::default(),
 1497            dispatching_keystrokes: Default::default(),
 1498            window_edited: false,
 1499            last_window_title: None,
 1500            dirty_items: Default::default(),
 1501            active_call,
 1502            database_id: workspace_id,
 1503            app_state,
 1504            _observe_current_user,
 1505            _apply_leader_updates,
 1506            _schedule_serialize_workspace: None,
 1507            _schedule_serialize_ssh_paths: None,
 1508            leader_updates_tx,
 1509            _subscriptions: subscriptions,
 1510            pane_history_timestamp,
 1511            workspace_actions: Default::default(),
 1512            // This data will be incorrect, but it will be overwritten by the time it needs to be used.
 1513            bounds: Default::default(),
 1514            centered_layout: false,
 1515            bounds_save_task_queued: None,
 1516            on_prompt_for_new_path: None,
 1517            on_prompt_for_open_path: None,
 1518            terminal_provider: None,
 1519            debugger_provider: None,
 1520            serializable_items_tx,
 1521            _items_serializer,
 1522            session_id: Some(session_id),
 1523
 1524            scheduled_tasks: Vec::new(),
 1525            last_open_dock_positions: Vec::new(),
 1526            removing: false,
 1527        }
 1528    }
 1529
 1530    pub fn new_local(
 1531        abs_paths: Vec<PathBuf>,
 1532        app_state: Arc<AppState>,
 1533        requesting_window: Option<WindowHandle<Workspace>>,
 1534        env: Option<HashMap<String, String>>,
 1535        cx: &mut App,
 1536    ) -> Task<
 1537        anyhow::Result<(
 1538            WindowHandle<Workspace>,
 1539            Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 1540        )>,
 1541    > {
 1542        let project_handle = Project::local(
 1543            app_state.client.clone(),
 1544            app_state.node_runtime.clone(),
 1545            app_state.user_store.clone(),
 1546            app_state.languages.clone(),
 1547            app_state.fs.clone(),
 1548            env,
 1549            cx,
 1550        );
 1551
 1552        cx.spawn(async move |cx| {
 1553            let mut paths_to_open = Vec::with_capacity(abs_paths.len());
 1554            for path in abs_paths.into_iter() {
 1555                if let Some(canonical) = app_state.fs.canonicalize(&path).await.ok() {
 1556                    paths_to_open.push(canonical)
 1557                } else {
 1558                    paths_to_open.push(path)
 1559                }
 1560            }
 1561
 1562            let serialized_workspace =
 1563                persistence::DB.workspace_for_roots(paths_to_open.as_slice());
 1564
 1565            if let Some(paths) = serialized_workspace.as_ref().map(|ws| &ws.paths) {
 1566                paths_to_open = paths.ordered_paths().cloned().collect();
 1567                if !paths.is_lexicographically_ordered() {
 1568                    project_handle
 1569                        .update(cx, |project, cx| {
 1570                            project.set_worktrees_reordered(true, cx);
 1571                        })
 1572                        .log_err();
 1573                }
 1574            }
 1575
 1576            // Get project paths for all of the abs_paths
 1577            let mut project_paths: Vec<(PathBuf, Option<ProjectPath>)> =
 1578                Vec::with_capacity(paths_to_open.len());
 1579
 1580            for path in paths_to_open.into_iter() {
 1581                if let Some((_, project_entry)) = cx
 1582                    .update(|cx| {
 1583                        Workspace::project_path_for_path(project_handle.clone(), &path, true, cx)
 1584                    })?
 1585                    .await
 1586                    .log_err()
 1587                {
 1588                    project_paths.push((path, Some(project_entry)));
 1589                } else {
 1590                    project_paths.push((path, None));
 1591                }
 1592            }
 1593
 1594            let workspace_id = if let Some(serialized_workspace) = serialized_workspace.as_ref() {
 1595                serialized_workspace.id
 1596            } else {
 1597                DB.next_id().await.unwrap_or_else(|_| Default::default())
 1598            };
 1599
 1600            let toolchains = DB.toolchains(workspace_id).await?;
 1601
 1602            for (toolchain, worktree_id, path) in toolchains {
 1603                let toolchain_path = PathBuf::from(toolchain.path.clone().to_string());
 1604                if !app_state.fs.is_file(toolchain_path.as_path()).await {
 1605                    continue;
 1606                }
 1607
 1608                project_handle
 1609                    .update(cx, |this, cx| {
 1610                        this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 1611                    })?
 1612                    .await;
 1613            }
 1614            if let Some(workspace) = serialized_workspace.as_ref() {
 1615                project_handle.update(cx, |this, cx| {
 1616                    for (scope, toolchains) in &workspace.user_toolchains {
 1617                        for toolchain in toolchains {
 1618                            this.add_toolchain(toolchain.clone(), scope.clone(), cx);
 1619                        }
 1620                    }
 1621                })?;
 1622            }
 1623
 1624            let window = if let Some(window) = requesting_window {
 1625                let centered_layout = serialized_workspace
 1626                    .as_ref()
 1627                    .map(|w| w.centered_layout)
 1628                    .unwrap_or(false);
 1629
 1630                cx.update_window(window.into(), |_, window, cx| {
 1631                    window.replace_root(cx, |window, cx| {
 1632                        let mut workspace = Workspace::new(
 1633                            Some(workspace_id),
 1634                            project_handle.clone(),
 1635                            app_state.clone(),
 1636                            window,
 1637                            cx,
 1638                        );
 1639
 1640                        workspace.centered_layout = centered_layout;
 1641                        workspace
 1642                    });
 1643                })?;
 1644                window
 1645            } else {
 1646                let window_bounds_override = window_bounds_env_override();
 1647
 1648                let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 1649                    (Some(WindowBounds::Windowed(bounds)), None)
 1650                } else {
 1651                    let restorable_bounds = serialized_workspace
 1652                        .as_ref()
 1653                        .and_then(|workspace| Some((workspace.display?, workspace.window_bounds?)))
 1654                        .or_else(|| {
 1655                            let (display, window_bounds) = DB.last_window().log_err()?;
 1656                            Some((display?, window_bounds?))
 1657                        });
 1658
 1659                    if let Some((serialized_display, serialized_status)) = restorable_bounds {
 1660                        (Some(serialized_status.0), Some(serialized_display))
 1661                    } else {
 1662                        (None, None)
 1663                    }
 1664                };
 1665
 1666                // Use the serialized workspace to construct the new window
 1667                let mut options = cx.update(|cx| (app_state.build_window_options)(display, cx))?;
 1668                options.window_bounds = window_bounds;
 1669                let centered_layout = serialized_workspace
 1670                    .as_ref()
 1671                    .map(|w| w.centered_layout)
 1672                    .unwrap_or(false);
 1673                cx.open_window(options, {
 1674                    let app_state = app_state.clone();
 1675                    let project_handle = project_handle.clone();
 1676                    move |window, cx| {
 1677                        cx.new(|cx| {
 1678                            let mut workspace = Workspace::new(
 1679                                Some(workspace_id),
 1680                                project_handle,
 1681                                app_state,
 1682                                window,
 1683                                cx,
 1684                            );
 1685                            workspace.centered_layout = centered_layout;
 1686                            workspace
 1687                        })
 1688                    }
 1689                })?
 1690            };
 1691
 1692            notify_if_database_failed(window, cx);
 1693            let opened_items = window
 1694                .update(cx, |_workspace, window, cx| {
 1695                    open_items(serialized_workspace, project_paths, window, cx)
 1696                })?
 1697                .await
 1698                .unwrap_or_default();
 1699
 1700            window
 1701                .update(cx, |workspace, window, cx| {
 1702                    window.activate_window();
 1703                    workspace.update_history(cx);
 1704                })
 1705                .log_err();
 1706            Ok((window, opened_items))
 1707        })
 1708    }
 1709
 1710    pub fn weak_handle(&self) -> WeakEntity<Self> {
 1711        self.weak_self.clone()
 1712    }
 1713
 1714    pub fn left_dock(&self) -> &Entity<Dock> {
 1715        &self.left_dock
 1716    }
 1717
 1718    pub fn bottom_dock(&self) -> &Entity<Dock> {
 1719        &self.bottom_dock
 1720    }
 1721
 1722    pub fn set_bottom_dock_layout(
 1723        &mut self,
 1724        layout: BottomDockLayout,
 1725        window: &mut Window,
 1726        cx: &mut Context<Self>,
 1727    ) {
 1728        let fs = self.project().read(cx).fs();
 1729        settings::update_settings_file(fs.clone(), cx, move |content, _cx| {
 1730            content.workspace.bottom_dock_layout = Some(layout);
 1731        });
 1732
 1733        cx.notify();
 1734        self.serialize_workspace(window, cx);
 1735    }
 1736
 1737    pub fn right_dock(&self) -> &Entity<Dock> {
 1738        &self.right_dock
 1739    }
 1740
 1741    pub fn all_docks(&self) -> [&Entity<Dock>; 3] {
 1742        [&self.left_dock, &self.bottom_dock, &self.right_dock]
 1743    }
 1744
 1745    pub fn dock_at_position(&self, position: DockPosition) -> &Entity<Dock> {
 1746        match position {
 1747            DockPosition::Left => &self.left_dock,
 1748            DockPosition::Bottom => &self.bottom_dock,
 1749            DockPosition::Right => &self.right_dock,
 1750        }
 1751    }
 1752
 1753    pub fn is_edited(&self) -> bool {
 1754        self.window_edited
 1755    }
 1756
 1757    pub fn add_panel<T: Panel>(
 1758        &mut self,
 1759        panel: Entity<T>,
 1760        window: &mut Window,
 1761        cx: &mut Context<Self>,
 1762    ) {
 1763        let focus_handle = panel.panel_focus_handle(cx);
 1764        cx.on_focus_in(&focus_handle, window, Self::handle_panel_focused)
 1765            .detach();
 1766
 1767        let dock_position = panel.position(window, cx);
 1768        let dock = self.dock_at_position(dock_position);
 1769
 1770        dock.update(cx, |dock, cx| {
 1771            dock.add_panel(panel, self.weak_self.clone(), window, cx)
 1772        });
 1773    }
 1774
 1775    pub fn remove_panel<T: Panel>(
 1776        &mut self,
 1777        panel: &Entity<T>,
 1778        window: &mut Window,
 1779        cx: &mut Context<Self>,
 1780    ) {
 1781        for dock in [&self.left_dock, &self.bottom_dock, &self.right_dock] {
 1782            dock.update(cx, |dock, cx| {
 1783                dock.remove_panel(panel, window, cx);
 1784            })
 1785        }
 1786    }
 1787
 1788    pub fn status_bar(&self) -> &Entity<StatusBar> {
 1789        &self.status_bar
 1790    }
 1791
 1792    pub fn status_bar_visible(&self, cx: &App) -> bool {
 1793        StatusBarSettings::get_global(cx).show
 1794    }
 1795
 1796    pub fn app_state(&self) -> &Arc<AppState> {
 1797        &self.app_state
 1798    }
 1799
 1800    pub fn user_store(&self) -> &Entity<UserStore> {
 1801        &self.app_state.user_store
 1802    }
 1803
 1804    pub fn project(&self) -> &Entity<Project> {
 1805        &self.project
 1806    }
 1807
 1808    pub fn path_style(&self, cx: &App) -> PathStyle {
 1809        self.project.read(cx).path_style(cx)
 1810    }
 1811
 1812    pub fn recently_activated_items(&self, cx: &App) -> HashMap<EntityId, usize> {
 1813        let mut history: HashMap<EntityId, usize> = HashMap::default();
 1814
 1815        for pane_handle in &self.panes {
 1816            let pane = pane_handle.read(cx);
 1817
 1818            for entry in pane.activation_history() {
 1819                history.insert(
 1820                    entry.entity_id,
 1821                    history
 1822                        .get(&entry.entity_id)
 1823                        .cloned()
 1824                        .unwrap_or(0)
 1825                        .max(entry.timestamp),
 1826                );
 1827            }
 1828        }
 1829
 1830        history
 1831    }
 1832
 1833    pub fn recent_active_item_by_type<T: 'static>(&self, cx: &App) -> Option<Entity<T>> {
 1834        let mut recent_item: Option<Entity<T>> = None;
 1835        let mut recent_timestamp = 0;
 1836        for pane_handle in &self.panes {
 1837            let pane = pane_handle.read(cx);
 1838            let item_map: HashMap<EntityId, &Box<dyn ItemHandle>> =
 1839                pane.items().map(|item| (item.item_id(), item)).collect();
 1840            for entry in pane.activation_history() {
 1841                if entry.timestamp > recent_timestamp
 1842                    && let Some(&item) = item_map.get(&entry.entity_id)
 1843                    && let Some(typed_item) = item.act_as::<T>(cx)
 1844                {
 1845                    recent_timestamp = entry.timestamp;
 1846                    recent_item = Some(typed_item);
 1847                }
 1848            }
 1849        }
 1850        recent_item
 1851    }
 1852
 1853    pub fn recent_navigation_history_iter(
 1854        &self,
 1855        cx: &App,
 1856    ) -> impl Iterator<Item = (ProjectPath, Option<PathBuf>)> {
 1857        let mut abs_paths_opened: HashMap<PathBuf, HashSet<ProjectPath>> = HashMap::default();
 1858        let mut history: HashMap<ProjectPath, (Option<PathBuf>, usize)> = HashMap::default();
 1859
 1860        for pane in &self.panes {
 1861            let pane = pane.read(cx);
 1862
 1863            pane.nav_history()
 1864                .for_each_entry(cx, |entry, (project_path, fs_path)| {
 1865                    if let Some(fs_path) = &fs_path {
 1866                        abs_paths_opened
 1867                            .entry(fs_path.clone())
 1868                            .or_default()
 1869                            .insert(project_path.clone());
 1870                    }
 1871                    let timestamp = entry.timestamp;
 1872                    match history.entry(project_path) {
 1873                        hash_map::Entry::Occupied(mut entry) => {
 1874                            let (_, old_timestamp) = entry.get();
 1875                            if &timestamp > old_timestamp {
 1876                                entry.insert((fs_path, timestamp));
 1877                            }
 1878                        }
 1879                        hash_map::Entry::Vacant(entry) => {
 1880                            entry.insert((fs_path, timestamp));
 1881                        }
 1882                    }
 1883                });
 1884
 1885            if let Some(item) = pane.active_item()
 1886                && let Some(project_path) = item.project_path(cx)
 1887            {
 1888                let fs_path = self.project.read(cx).absolute_path(&project_path, cx);
 1889
 1890                if let Some(fs_path) = &fs_path {
 1891                    abs_paths_opened
 1892                        .entry(fs_path.clone())
 1893                        .or_default()
 1894                        .insert(project_path.clone());
 1895                }
 1896
 1897                history.insert(project_path, (fs_path, std::usize::MAX));
 1898            }
 1899        }
 1900
 1901        history
 1902            .into_iter()
 1903            .sorted_by_key(|(_, (_, order))| *order)
 1904            .map(|(project_path, (fs_path, _))| (project_path, fs_path))
 1905            .rev()
 1906            .filter(move |(history_path, abs_path)| {
 1907                let latest_project_path_opened = abs_path
 1908                    .as_ref()
 1909                    .and_then(|abs_path| abs_paths_opened.get(abs_path))
 1910                    .and_then(|project_paths| {
 1911                        project_paths
 1912                            .iter()
 1913                            .max_by(|b1, b2| b1.worktree_id.cmp(&b2.worktree_id))
 1914                    });
 1915
 1916                latest_project_path_opened.is_none_or(|path| path == history_path)
 1917            })
 1918    }
 1919
 1920    pub fn recent_navigation_history(
 1921        &self,
 1922        limit: Option<usize>,
 1923        cx: &App,
 1924    ) -> Vec<(ProjectPath, Option<PathBuf>)> {
 1925        self.recent_navigation_history_iter(cx)
 1926            .take(limit.unwrap_or(usize::MAX))
 1927            .collect()
 1928    }
 1929
 1930    fn navigate_history(
 1931        &mut self,
 1932        pane: WeakEntity<Pane>,
 1933        mode: NavigationMode,
 1934        window: &mut Window,
 1935        cx: &mut Context<Workspace>,
 1936    ) -> Task<Result<()>> {
 1937        let to_load = if let Some(pane) = pane.upgrade() {
 1938            pane.update(cx, |pane, cx| {
 1939                window.focus(&pane.focus_handle(cx));
 1940                loop {
 1941                    // Retrieve the weak item handle from the history.
 1942                    let entry = pane.nav_history_mut().pop(mode, cx)?;
 1943
 1944                    // If the item is still present in this pane, then activate it.
 1945                    if let Some(index) = entry
 1946                        .item
 1947                        .upgrade()
 1948                        .and_then(|v| pane.index_for_item(v.as_ref()))
 1949                    {
 1950                        let prev_active_item_index = pane.active_item_index();
 1951                        pane.nav_history_mut().set_mode(mode);
 1952                        pane.activate_item(index, true, true, window, cx);
 1953                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 1954
 1955                        let mut navigated = prev_active_item_index != pane.active_item_index();
 1956                        if let Some(data) = entry.data {
 1957                            navigated |= pane.active_item()?.navigate(data, window, cx);
 1958                        }
 1959
 1960                        if navigated {
 1961                            break None;
 1962                        }
 1963                    } else {
 1964                        // If the item is no longer present in this pane, then retrieve its
 1965                        // path info in order to reopen it.
 1966                        break pane
 1967                            .nav_history()
 1968                            .path_for_item(entry.item.id())
 1969                            .map(|(project_path, abs_path)| (project_path, abs_path, entry));
 1970                    }
 1971                }
 1972            })
 1973        } else {
 1974            None
 1975        };
 1976
 1977        if let Some((project_path, abs_path, entry)) = to_load {
 1978            // If the item was no longer present, then load it again from its previous path, first try the local path
 1979            let open_by_project_path = self.load_path(project_path.clone(), window, cx);
 1980
 1981            cx.spawn_in(window, async move  |workspace, cx| {
 1982                let open_by_project_path = open_by_project_path.await;
 1983                let mut navigated = false;
 1984                match open_by_project_path
 1985                    .with_context(|| format!("Navigating to {project_path:?}"))
 1986                {
 1987                    Ok((project_entry_id, build_item)) => {
 1988                        let prev_active_item_id = pane.update(cx, |pane, _| {
 1989                            pane.nav_history_mut().set_mode(mode);
 1990                            pane.active_item().map(|p| p.item_id())
 1991                        })?;
 1992
 1993                        pane.update_in(cx, |pane, window, cx| {
 1994                            let item = pane.open_item(
 1995                                project_entry_id,
 1996                                project_path,
 1997                                true,
 1998                                entry.is_preview,
 1999                                true,
 2000                                None,
 2001                                window, cx,
 2002                                build_item,
 2003                            );
 2004                            navigated |= Some(item.item_id()) != prev_active_item_id;
 2005                            pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2006                            if let Some(data) = entry.data {
 2007                                navigated |= item.navigate(data, window, cx);
 2008                            }
 2009                        })?;
 2010                    }
 2011                    Err(open_by_project_path_e) => {
 2012                        // Fall back to opening by abs path, in case an external file was opened and closed,
 2013                        // and its worktree is now dropped
 2014                        if let Some(abs_path) = abs_path {
 2015                            let prev_active_item_id = pane.update(cx, |pane, _| {
 2016                                pane.nav_history_mut().set_mode(mode);
 2017                                pane.active_item().map(|p| p.item_id())
 2018                            })?;
 2019                            let open_by_abs_path = workspace.update_in(cx, |workspace, window, cx| {
 2020                                workspace.open_abs_path(abs_path.clone(), OpenOptions { visible: Some(OpenVisible::None), ..Default::default() }, window, cx)
 2021                            })?;
 2022                            match open_by_abs_path
 2023                                .await
 2024                                .with_context(|| format!("Navigating to {abs_path:?}"))
 2025                            {
 2026                                Ok(item) => {
 2027                                    pane.update_in(cx, |pane, window, cx| {
 2028                                        navigated |= Some(item.item_id()) != prev_active_item_id;
 2029                                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2030                                        if let Some(data) = entry.data {
 2031                                            navigated |= item.navigate(data, window, cx);
 2032                                        }
 2033                                    })?;
 2034                                }
 2035                                Err(open_by_abs_path_e) => {
 2036                                    log::error!("Failed to navigate history: {open_by_project_path_e:#} and {open_by_abs_path_e:#}");
 2037                                }
 2038                            }
 2039                        }
 2040                    }
 2041                }
 2042
 2043                if !navigated {
 2044                    workspace
 2045                        .update_in(cx, |workspace, window, cx| {
 2046                            Self::navigate_history(workspace, pane, mode, window, cx)
 2047                        })?
 2048                        .await?;
 2049                }
 2050
 2051                Ok(())
 2052            })
 2053        } else {
 2054            Task::ready(Ok(()))
 2055        }
 2056    }
 2057
 2058    pub fn go_back(
 2059        &mut self,
 2060        pane: WeakEntity<Pane>,
 2061        window: &mut Window,
 2062        cx: &mut Context<Workspace>,
 2063    ) -> Task<Result<()>> {
 2064        self.navigate_history(pane, NavigationMode::GoingBack, window, cx)
 2065    }
 2066
 2067    pub fn go_forward(
 2068        &mut self,
 2069        pane: WeakEntity<Pane>,
 2070        window: &mut Window,
 2071        cx: &mut Context<Workspace>,
 2072    ) -> Task<Result<()>> {
 2073        self.navigate_history(pane, NavigationMode::GoingForward, window, cx)
 2074    }
 2075
 2076    pub fn reopen_closed_item(
 2077        &mut self,
 2078        window: &mut Window,
 2079        cx: &mut Context<Workspace>,
 2080    ) -> Task<Result<()>> {
 2081        self.navigate_history(
 2082            self.active_pane().downgrade(),
 2083            NavigationMode::ReopeningClosedItem,
 2084            window,
 2085            cx,
 2086        )
 2087    }
 2088
 2089    pub fn client(&self) -> &Arc<Client> {
 2090        &self.app_state.client
 2091    }
 2092
 2093    pub fn set_titlebar_item(&mut self, item: AnyView, _: &mut Window, cx: &mut Context<Self>) {
 2094        self.titlebar_item = Some(item);
 2095        cx.notify();
 2096    }
 2097
 2098    pub fn set_prompt_for_new_path(&mut self, prompt: PromptForNewPath) {
 2099        self.on_prompt_for_new_path = Some(prompt)
 2100    }
 2101
 2102    pub fn set_prompt_for_open_path(&mut self, prompt: PromptForOpenPath) {
 2103        self.on_prompt_for_open_path = Some(prompt)
 2104    }
 2105
 2106    pub fn set_terminal_provider(&mut self, provider: impl TerminalProvider + 'static) {
 2107        self.terminal_provider = Some(Box::new(provider));
 2108    }
 2109
 2110    pub fn set_debugger_provider(&mut self, provider: impl DebuggerProvider + 'static) {
 2111        self.debugger_provider = Some(Arc::new(provider));
 2112    }
 2113
 2114    pub fn debugger_provider(&self) -> Option<Arc<dyn DebuggerProvider>> {
 2115        self.debugger_provider.clone()
 2116    }
 2117
 2118    pub fn prompt_for_open_path(
 2119        &mut self,
 2120        path_prompt_options: PathPromptOptions,
 2121        lister: DirectoryLister,
 2122        window: &mut Window,
 2123        cx: &mut Context<Self>,
 2124    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2125        if !lister.is_local(cx) || !WorkspaceSettings::get_global(cx).use_system_path_prompts {
 2126            let prompt = self.on_prompt_for_open_path.take().unwrap();
 2127            let rx = prompt(self, lister, window, cx);
 2128            self.on_prompt_for_open_path = Some(prompt);
 2129            rx
 2130        } else {
 2131            let (tx, rx) = oneshot::channel();
 2132            let abs_path = cx.prompt_for_paths(path_prompt_options);
 2133
 2134            cx.spawn_in(window, async move |workspace, cx| {
 2135                let Ok(result) = abs_path.await else {
 2136                    return Ok(());
 2137                };
 2138
 2139                match result {
 2140                    Ok(result) => {
 2141                        tx.send(result).ok();
 2142                    }
 2143                    Err(err) => {
 2144                        let rx = workspace.update_in(cx, |workspace, window, cx| {
 2145                            workspace.show_portal_error(err.to_string(), cx);
 2146                            let prompt = workspace.on_prompt_for_open_path.take().unwrap();
 2147                            let rx = prompt(workspace, lister, window, cx);
 2148                            workspace.on_prompt_for_open_path = Some(prompt);
 2149                            rx
 2150                        })?;
 2151                        if let Ok(path) = rx.await {
 2152                            tx.send(path).ok();
 2153                        }
 2154                    }
 2155                };
 2156                anyhow::Ok(())
 2157            })
 2158            .detach();
 2159
 2160            rx
 2161        }
 2162    }
 2163
 2164    pub fn prompt_for_new_path(
 2165        &mut self,
 2166        lister: DirectoryLister,
 2167        suggested_name: Option<String>,
 2168        window: &mut Window,
 2169        cx: &mut Context<Self>,
 2170    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2171        if self.project.read(cx).is_via_collab()
 2172            || self.project.read(cx).is_via_remote_server()
 2173            || !WorkspaceSettings::get_global(cx).use_system_path_prompts
 2174        {
 2175            let prompt = self.on_prompt_for_new_path.take().unwrap();
 2176            let rx = prompt(self, lister, window, cx);
 2177            self.on_prompt_for_new_path = Some(prompt);
 2178            return rx;
 2179        }
 2180
 2181        let (tx, rx) = oneshot::channel();
 2182        cx.spawn_in(window, async move |workspace, cx| {
 2183            let abs_path = workspace.update(cx, |workspace, cx| {
 2184                let relative_to = workspace
 2185                    .most_recent_active_path(cx)
 2186                    .and_then(|p| p.parent().map(|p| p.to_path_buf()))
 2187                    .or_else(|| {
 2188                        let project = workspace.project.read(cx);
 2189                        project.visible_worktrees(cx).find_map(|worktree| {
 2190                            Some(worktree.read(cx).as_local()?.abs_path().to_path_buf())
 2191                        })
 2192                    })
 2193                    .or_else(std::env::home_dir)
 2194                    .unwrap_or_else(|| PathBuf::from(""));
 2195                cx.prompt_for_new_path(&relative_to, suggested_name.as_deref())
 2196            })?;
 2197            let abs_path = match abs_path.await? {
 2198                Ok(path) => path,
 2199                Err(err) => {
 2200                    let rx = workspace.update_in(cx, |workspace, window, cx| {
 2201                        workspace.show_portal_error(err.to_string(), cx);
 2202
 2203                        let prompt = workspace.on_prompt_for_new_path.take().unwrap();
 2204                        let rx = prompt(workspace, lister, window, cx);
 2205                        workspace.on_prompt_for_new_path = Some(prompt);
 2206                        rx
 2207                    })?;
 2208                    if let Ok(path) = rx.await {
 2209                        tx.send(path).ok();
 2210                    }
 2211                    return anyhow::Ok(());
 2212                }
 2213            };
 2214
 2215            tx.send(abs_path.map(|path| vec![path])).ok();
 2216            anyhow::Ok(())
 2217        })
 2218        .detach();
 2219
 2220        rx
 2221    }
 2222
 2223    pub fn titlebar_item(&self) -> Option<AnyView> {
 2224        self.titlebar_item.clone()
 2225    }
 2226
 2227    /// Call the given callback with a workspace whose project is local.
 2228    ///
 2229    /// If the given workspace has a local project, then it will be passed
 2230    /// to the callback. Otherwise, a new empty window will be created.
 2231    pub fn with_local_workspace<T, F>(
 2232        &mut self,
 2233        window: &mut Window,
 2234        cx: &mut Context<Self>,
 2235        callback: F,
 2236    ) -> Task<Result<T>>
 2237    where
 2238        T: 'static,
 2239        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2240    {
 2241        if self.project.read(cx).is_local() {
 2242            Task::ready(Ok(callback(self, window, cx)))
 2243        } else {
 2244            let env = self.project.read(cx).cli_environment(cx);
 2245            let task = Self::new_local(Vec::new(), self.app_state.clone(), None, env, cx);
 2246            cx.spawn_in(window, async move |_vh, cx| {
 2247                let (workspace, _) = task.await?;
 2248                workspace.update(cx, callback)
 2249            })
 2250        }
 2251    }
 2252
 2253    pub fn worktrees<'a>(&self, cx: &'a App) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2254        self.project.read(cx).worktrees(cx)
 2255    }
 2256
 2257    pub fn visible_worktrees<'a>(
 2258        &self,
 2259        cx: &'a App,
 2260    ) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2261        self.project.read(cx).visible_worktrees(cx)
 2262    }
 2263
 2264    #[cfg(any(test, feature = "test-support"))]
 2265    pub fn worktree_scans_complete(&self, cx: &App) -> impl Future<Output = ()> + 'static + use<> {
 2266        let futures = self
 2267            .worktrees(cx)
 2268            .filter_map(|worktree| worktree.read(cx).as_local())
 2269            .map(|worktree| worktree.scan_complete())
 2270            .collect::<Vec<_>>();
 2271        async move {
 2272            for future in futures {
 2273                future.await;
 2274            }
 2275        }
 2276    }
 2277
 2278    pub fn close_global(cx: &mut App) {
 2279        cx.defer(|cx| {
 2280            cx.windows().iter().find(|window| {
 2281                window
 2282                    .update(cx, |_, window, _| {
 2283                        if window.is_window_active() {
 2284                            //This can only get called when the window's project connection has been lost
 2285                            //so we don't need to prompt the user for anything and instead just close the window
 2286                            window.remove_window();
 2287                            true
 2288                        } else {
 2289                            false
 2290                        }
 2291                    })
 2292                    .unwrap_or(false)
 2293            });
 2294        });
 2295    }
 2296
 2297    pub fn close_window(&mut self, _: &CloseWindow, window: &mut Window, cx: &mut Context<Self>) {
 2298        let prepare = self.prepare_to_close(CloseIntent::CloseWindow, window, cx);
 2299        cx.spawn_in(window, async move |_, cx| {
 2300            if prepare.await? {
 2301                cx.update(|window, _cx| window.remove_window())?;
 2302            }
 2303            anyhow::Ok(())
 2304        })
 2305        .detach_and_log_err(cx)
 2306    }
 2307
 2308    pub fn move_focused_panel_to_next_position(
 2309        &mut self,
 2310        _: &MoveFocusedPanelToNextPosition,
 2311        window: &mut Window,
 2312        cx: &mut Context<Self>,
 2313    ) {
 2314        let docks = self.all_docks();
 2315        let active_dock = docks
 2316            .into_iter()
 2317            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 2318
 2319        if let Some(dock) = active_dock {
 2320            dock.update(cx, |dock, cx| {
 2321                let active_panel = dock
 2322                    .active_panel()
 2323                    .filter(|panel| panel.panel_focus_handle(cx).contains_focused(window, cx));
 2324
 2325                if let Some(panel) = active_panel {
 2326                    panel.move_to_next_position(window, cx);
 2327                }
 2328            })
 2329        }
 2330    }
 2331
 2332    pub fn prepare_to_close(
 2333        &mut self,
 2334        close_intent: CloseIntent,
 2335        window: &mut Window,
 2336        cx: &mut Context<Self>,
 2337    ) -> Task<Result<bool>> {
 2338        let active_call = self.active_call().cloned();
 2339
 2340        cx.spawn_in(window, async move |this, cx| {
 2341            this.update(cx, |this, _| {
 2342                if close_intent == CloseIntent::CloseWindow {
 2343                    this.removing = true;
 2344                }
 2345            })?;
 2346
 2347            let workspace_count = cx.update(|_window, cx| {
 2348                cx.windows()
 2349                    .iter()
 2350                    .filter(|window| window.downcast::<Workspace>().is_some())
 2351                    .count()
 2352            })?;
 2353
 2354            #[cfg(target_os = "macos")]
 2355            let save_last_workspace = false;
 2356
 2357            // On Linux and Windows, closing the last window should restore the last workspace.
 2358            #[cfg(not(target_os = "macos"))]
 2359            let save_last_workspace = {
 2360                let remaining_workspaces = cx.update(|_window, cx| {
 2361                    cx.windows()
 2362                        .iter()
 2363                        .filter_map(|window| window.downcast::<Workspace>())
 2364                        .filter_map(|workspace| {
 2365                            workspace
 2366                                .update(cx, |workspace, _, _| workspace.removing)
 2367                                .ok()
 2368                        })
 2369                        .filter(|removing| !removing)
 2370                        .count()
 2371                })?;
 2372
 2373                close_intent != CloseIntent::ReplaceWindow && remaining_workspaces == 0
 2374            };
 2375
 2376            if let Some(active_call) = active_call
 2377                && workspace_count == 1
 2378                && active_call.read_with(cx, |call, _| call.room().is_some())?
 2379            {
 2380                if close_intent == CloseIntent::CloseWindow {
 2381                    let answer = cx.update(|window, cx| {
 2382                        window.prompt(
 2383                            PromptLevel::Warning,
 2384                            "Do you want to leave the current call?",
 2385                            None,
 2386                            &["Close window and hang up", "Cancel"],
 2387                            cx,
 2388                        )
 2389                    })?;
 2390
 2391                    if answer.await.log_err() == Some(1) {
 2392                        return anyhow::Ok(false);
 2393                    } else {
 2394                        active_call
 2395                            .update(cx, |call, cx| call.hang_up(cx))?
 2396                            .await
 2397                            .log_err();
 2398                    }
 2399                }
 2400                if close_intent == CloseIntent::ReplaceWindow {
 2401                    _ = active_call.update(cx, |this, cx| {
 2402                        let workspace = cx
 2403                            .windows()
 2404                            .iter()
 2405                            .filter_map(|window| window.downcast::<Workspace>())
 2406                            .next()
 2407                            .unwrap();
 2408                        let project = workspace.read(cx)?.project.clone();
 2409                        if project.read(cx).is_shared() {
 2410                            this.unshare_project(project, cx)?;
 2411                        }
 2412                        Ok::<_, anyhow::Error>(())
 2413                    })?;
 2414                }
 2415            }
 2416
 2417            let save_result = this
 2418                .update_in(cx, |this, window, cx| {
 2419                    this.save_all_internal(SaveIntent::Close, window, cx)
 2420                })?
 2421                .await;
 2422
 2423            // If we're not quitting, but closing, we remove the workspace from
 2424            // the current session.
 2425            if close_intent != CloseIntent::Quit
 2426                && !save_last_workspace
 2427                && save_result.as_ref().is_ok_and(|&res| res)
 2428            {
 2429                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))?
 2430                    .await;
 2431            }
 2432
 2433            save_result
 2434        })
 2435    }
 2436
 2437    fn save_all(&mut self, action: &SaveAll, window: &mut Window, cx: &mut Context<Self>) {
 2438        self.save_all_internal(
 2439            action.save_intent.unwrap_or(SaveIntent::SaveAll),
 2440            window,
 2441            cx,
 2442        )
 2443        .detach_and_log_err(cx);
 2444    }
 2445
 2446    fn send_keystrokes(
 2447        &mut self,
 2448        action: &SendKeystrokes,
 2449        window: &mut Window,
 2450        cx: &mut Context<Self>,
 2451    ) {
 2452        let keystrokes: Vec<Keystroke> = action
 2453            .0
 2454            .split(' ')
 2455            .flat_map(|k| Keystroke::parse(k).log_err())
 2456            .collect();
 2457        let _ = self.send_keystrokes_impl(keystrokes, window, cx);
 2458    }
 2459
 2460    pub fn send_keystrokes_impl(
 2461        &mut self,
 2462        keystrokes: Vec<Keystroke>,
 2463        window: &mut Window,
 2464        cx: &mut Context<Self>,
 2465    ) -> Shared<Task<()>> {
 2466        let mut state = self.dispatching_keystrokes.borrow_mut();
 2467        if !state.dispatched.insert(keystrokes.clone()) {
 2468            cx.propagate();
 2469            return state.task.clone().unwrap();
 2470        }
 2471
 2472        state.queue.extend(keystrokes);
 2473
 2474        let keystrokes = self.dispatching_keystrokes.clone();
 2475        if state.task.is_none() {
 2476            state.task = Some(
 2477                window
 2478                    .spawn(cx, async move |cx| {
 2479                        // limit to 100 keystrokes to avoid infinite recursion.
 2480                        for _ in 0..100 {
 2481                            let mut state = keystrokes.borrow_mut();
 2482                            let Some(keystroke) = state.queue.pop_front() else {
 2483                                state.dispatched.clear();
 2484                                state.task.take();
 2485                                return;
 2486                            };
 2487                            drop(state);
 2488                            cx.update(|window, cx| {
 2489                                let focused = window.focused(cx);
 2490                                window.dispatch_keystroke(keystroke.clone(), cx);
 2491                                if window.focused(cx) != focused {
 2492                                    // dispatch_keystroke may cause the focus to change.
 2493                                    // draw's side effect is to schedule the FocusChanged events in the current flush effect cycle
 2494                                    // And we need that to happen before the next keystroke to keep vim mode happy...
 2495                                    // (Note that the tests always do this implicitly, so you must manually test with something like:
 2496                                    //   "bindings": { "g z": ["workspace::SendKeystrokes", ": j <enter> u"]}
 2497                                    // )
 2498                                    window.draw(cx).clear();
 2499                                }
 2500                            })
 2501                            .ok();
 2502                        }
 2503
 2504                        *keystrokes.borrow_mut() = Default::default();
 2505                        log::error!("over 100 keystrokes passed to send_keystrokes");
 2506                    })
 2507                    .shared(),
 2508            );
 2509        }
 2510        state.task.clone().unwrap()
 2511    }
 2512
 2513    fn save_all_internal(
 2514        &mut self,
 2515        mut save_intent: SaveIntent,
 2516        window: &mut Window,
 2517        cx: &mut Context<Self>,
 2518    ) -> Task<Result<bool>> {
 2519        if self.project.read(cx).is_disconnected(cx) {
 2520            return Task::ready(Ok(true));
 2521        }
 2522        let dirty_items = self
 2523            .panes
 2524            .iter()
 2525            .flat_map(|pane| {
 2526                pane.read(cx).items().filter_map(|item| {
 2527                    if item.is_dirty(cx) {
 2528                        item.tab_content_text(0, cx);
 2529                        Some((pane.downgrade(), item.boxed_clone()))
 2530                    } else {
 2531                        None
 2532                    }
 2533                })
 2534            })
 2535            .collect::<Vec<_>>();
 2536
 2537        let project = self.project.clone();
 2538        cx.spawn_in(window, async move |workspace, cx| {
 2539            let dirty_items = if save_intent == SaveIntent::Close && !dirty_items.is_empty() {
 2540                let (serialize_tasks, remaining_dirty_items) =
 2541                    workspace.update_in(cx, |workspace, window, cx| {
 2542                        let mut remaining_dirty_items = Vec::new();
 2543                        let mut serialize_tasks = Vec::new();
 2544                        for (pane, item) in dirty_items {
 2545                            if let Some(task) = item
 2546                                .to_serializable_item_handle(cx)
 2547                                .and_then(|handle| handle.serialize(workspace, true, window, cx))
 2548                            {
 2549                                serialize_tasks.push(task);
 2550                            } else {
 2551                                remaining_dirty_items.push((pane, item));
 2552                            }
 2553                        }
 2554                        (serialize_tasks, remaining_dirty_items)
 2555                    })?;
 2556
 2557                futures::future::try_join_all(serialize_tasks).await?;
 2558
 2559                if remaining_dirty_items.len() > 1 {
 2560                    let answer = workspace.update_in(cx, |_, window, cx| {
 2561                        let detail = Pane::file_names_for_prompt(
 2562                            &mut remaining_dirty_items.iter().map(|(_, handle)| handle),
 2563                            cx,
 2564                        );
 2565                        window.prompt(
 2566                            PromptLevel::Warning,
 2567                            "Do you want to save all changes in the following files?",
 2568                            Some(&detail),
 2569                            &["Save all", "Discard all", "Cancel"],
 2570                            cx,
 2571                        )
 2572                    })?;
 2573                    match answer.await.log_err() {
 2574                        Some(0) => save_intent = SaveIntent::SaveAll,
 2575                        Some(1) => save_intent = SaveIntent::Skip,
 2576                        Some(2) => return Ok(false),
 2577                        _ => {}
 2578                    }
 2579                }
 2580
 2581                remaining_dirty_items
 2582            } else {
 2583                dirty_items
 2584            };
 2585
 2586            for (pane, item) in dirty_items {
 2587                let (singleton, project_entry_ids) = cx.update(|_, cx| {
 2588                    (
 2589                        item.buffer_kind(cx) == ItemBufferKind::Singleton,
 2590                        item.project_entry_ids(cx),
 2591                    )
 2592                })?;
 2593                if (singleton || !project_entry_ids.is_empty())
 2594                    && !Pane::save_item(project.clone(), &pane, &*item, save_intent, cx).await?
 2595                {
 2596                    return Ok(false);
 2597                }
 2598            }
 2599            Ok(true)
 2600        })
 2601    }
 2602
 2603    pub fn open_workspace_for_paths(
 2604        &mut self,
 2605        replace_current_window: bool,
 2606        paths: Vec<PathBuf>,
 2607        window: &mut Window,
 2608        cx: &mut Context<Self>,
 2609    ) -> Task<Result<()>> {
 2610        let window_handle = window.window_handle().downcast::<Self>();
 2611        let is_remote = self.project.read(cx).is_via_collab();
 2612        let has_worktree = self.project.read(cx).worktrees(cx).next().is_some();
 2613        let has_dirty_items = self.items(cx).any(|item| item.is_dirty(cx));
 2614
 2615        let window_to_replace = if replace_current_window {
 2616            window_handle
 2617        } else if is_remote || has_worktree || has_dirty_items {
 2618            None
 2619        } else {
 2620            window_handle
 2621        };
 2622        let app_state = self.app_state.clone();
 2623
 2624        cx.spawn(async move |_, cx| {
 2625            cx.update(|cx| {
 2626                open_paths(
 2627                    &paths,
 2628                    app_state,
 2629                    OpenOptions {
 2630                        replace_window: window_to_replace,
 2631                        ..Default::default()
 2632                    },
 2633                    cx,
 2634                )
 2635            })?
 2636            .await?;
 2637            Ok(())
 2638        })
 2639    }
 2640
 2641    #[allow(clippy::type_complexity)]
 2642    pub fn open_paths(
 2643        &mut self,
 2644        mut abs_paths: Vec<PathBuf>,
 2645        options: OpenOptions,
 2646        pane: Option<WeakEntity<Pane>>,
 2647        window: &mut Window,
 2648        cx: &mut Context<Self>,
 2649    ) -> Task<Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>> {
 2650        let fs = self.app_state.fs.clone();
 2651
 2652        // Sort the paths to ensure we add worktrees for parents before their children.
 2653        abs_paths.sort_unstable();
 2654        cx.spawn_in(window, async move |this, cx| {
 2655            let mut tasks = Vec::with_capacity(abs_paths.len());
 2656
 2657            for abs_path in &abs_paths {
 2658                let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 2659                    OpenVisible::All => Some(true),
 2660                    OpenVisible::None => Some(false),
 2661                    OpenVisible::OnlyFiles => match fs.metadata(abs_path).await.log_err() {
 2662                        Some(Some(metadata)) => Some(!metadata.is_dir),
 2663                        Some(None) => Some(true),
 2664                        None => None,
 2665                    },
 2666                    OpenVisible::OnlyDirectories => match fs.metadata(abs_path).await.log_err() {
 2667                        Some(Some(metadata)) => Some(metadata.is_dir),
 2668                        Some(None) => Some(false),
 2669                        None => None,
 2670                    },
 2671                };
 2672                let project_path = match visible {
 2673                    Some(visible) => match this
 2674                        .update(cx, |this, cx| {
 2675                            Workspace::project_path_for_path(
 2676                                this.project.clone(),
 2677                                abs_path,
 2678                                visible,
 2679                                cx,
 2680                            )
 2681                        })
 2682                        .log_err()
 2683                    {
 2684                        Some(project_path) => project_path.await.log_err(),
 2685                        None => None,
 2686                    },
 2687                    None => None,
 2688                };
 2689
 2690                let this = this.clone();
 2691                let abs_path: Arc<Path> = SanitizedPath::new(&abs_path).as_path().into();
 2692                let fs = fs.clone();
 2693                let pane = pane.clone();
 2694                let task = cx.spawn(async move |cx| {
 2695                    let (worktree, project_path) = project_path?;
 2696                    if fs.is_dir(&abs_path).await {
 2697                        this.update(cx, |workspace, cx| {
 2698                            let worktree = worktree.read(cx);
 2699                            let worktree_abs_path = worktree.abs_path();
 2700                            let entry_id = if abs_path.as_ref() == worktree_abs_path.as_ref() {
 2701                                worktree.root_entry()
 2702                            } else {
 2703                                abs_path
 2704                                    .strip_prefix(worktree_abs_path.as_ref())
 2705                                    .ok()
 2706                                    .and_then(|relative_path| {
 2707                                        let relative_path =
 2708                                            RelPath::new(relative_path, PathStyle::local())
 2709                                                .log_err()?;
 2710                                        worktree.entry_for_path(&relative_path)
 2711                                    })
 2712                            }
 2713                            .map(|entry| entry.id);
 2714                            if let Some(entry_id) = entry_id {
 2715                                workspace.project.update(cx, |_, cx| {
 2716                                    cx.emit(project::Event::ActiveEntryChanged(Some(entry_id)));
 2717                                })
 2718                            }
 2719                        })
 2720                        .ok()?;
 2721                        None
 2722                    } else {
 2723                        Some(
 2724                            this.update_in(cx, |this, window, cx| {
 2725                                this.open_path(
 2726                                    project_path,
 2727                                    pane,
 2728                                    options.focus.unwrap_or(true),
 2729                                    window,
 2730                                    cx,
 2731                                )
 2732                            })
 2733                            .ok()?
 2734                            .await,
 2735                        )
 2736                    }
 2737                });
 2738                tasks.push(task);
 2739            }
 2740
 2741            futures::future::join_all(tasks).await
 2742        })
 2743    }
 2744
 2745    pub fn open_resolved_path(
 2746        &mut self,
 2747        path: ResolvedPath,
 2748        window: &mut Window,
 2749        cx: &mut Context<Self>,
 2750    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 2751        match path {
 2752            ResolvedPath::ProjectPath { project_path, .. } => {
 2753                self.open_path(project_path, None, true, window, cx)
 2754            }
 2755            ResolvedPath::AbsPath { path, .. } => self.open_abs_path(
 2756                PathBuf::from(path),
 2757                OpenOptions {
 2758                    visible: Some(OpenVisible::None),
 2759                    ..Default::default()
 2760                },
 2761                window,
 2762                cx,
 2763            ),
 2764        }
 2765    }
 2766
 2767    pub fn absolute_path_of_worktree(
 2768        &self,
 2769        worktree_id: WorktreeId,
 2770        cx: &mut Context<Self>,
 2771    ) -> Option<PathBuf> {
 2772        self.project
 2773            .read(cx)
 2774            .worktree_for_id(worktree_id, cx)
 2775            // TODO: use `abs_path` or `root_dir`
 2776            .map(|wt| wt.read(cx).abs_path().as_ref().to_path_buf())
 2777    }
 2778
 2779    fn add_folder_to_project(
 2780        &mut self,
 2781        _: &AddFolderToProject,
 2782        window: &mut Window,
 2783        cx: &mut Context<Self>,
 2784    ) {
 2785        let project = self.project.read(cx);
 2786        if project.is_via_collab() {
 2787            self.show_error(
 2788                &anyhow!("You cannot add folders to someone else's project"),
 2789                cx,
 2790            );
 2791            return;
 2792        }
 2793        let paths = self.prompt_for_open_path(
 2794            PathPromptOptions {
 2795                files: false,
 2796                directories: true,
 2797                multiple: true,
 2798                prompt: None,
 2799            },
 2800            DirectoryLister::Project(self.project.clone()),
 2801            window,
 2802            cx,
 2803        );
 2804        cx.spawn_in(window, async move |this, cx| {
 2805            if let Some(paths) = paths.await.log_err().flatten() {
 2806                let results = this
 2807                    .update_in(cx, |this, window, cx| {
 2808                        this.open_paths(
 2809                            paths,
 2810                            OpenOptions {
 2811                                visible: Some(OpenVisible::All),
 2812                                ..Default::default()
 2813                            },
 2814                            None,
 2815                            window,
 2816                            cx,
 2817                        )
 2818                    })?
 2819                    .await;
 2820                for result in results.into_iter().flatten() {
 2821                    result.log_err();
 2822                }
 2823            }
 2824            anyhow::Ok(())
 2825        })
 2826        .detach_and_log_err(cx);
 2827    }
 2828
 2829    pub fn project_path_for_path(
 2830        project: Entity<Project>,
 2831        abs_path: &Path,
 2832        visible: bool,
 2833        cx: &mut App,
 2834    ) -> Task<Result<(Entity<Worktree>, ProjectPath)>> {
 2835        let entry = project.update(cx, |project, cx| {
 2836            project.find_or_create_worktree(abs_path, visible, cx)
 2837        });
 2838        cx.spawn(async move |cx| {
 2839            let (worktree, path) = entry.await?;
 2840            let worktree_id = worktree.read_with(cx, |t, _| t.id())?;
 2841            Ok((
 2842                worktree,
 2843                ProjectPath {
 2844                    worktree_id,
 2845                    path: path,
 2846                },
 2847            ))
 2848        })
 2849    }
 2850
 2851    pub fn items<'a>(&'a self, cx: &'a App) -> impl 'a + Iterator<Item = &'a Box<dyn ItemHandle>> {
 2852        self.panes.iter().flat_map(|pane| pane.read(cx).items())
 2853    }
 2854
 2855    pub fn item_of_type<T: Item>(&self, cx: &App) -> Option<Entity<T>> {
 2856        self.items_of_type(cx).max_by_key(|item| item.item_id())
 2857    }
 2858
 2859    pub fn items_of_type<'a, T: Item>(
 2860        &'a self,
 2861        cx: &'a App,
 2862    ) -> impl 'a + Iterator<Item = Entity<T>> {
 2863        self.panes
 2864            .iter()
 2865            .flat_map(|pane| pane.read(cx).items_of_type())
 2866    }
 2867
 2868    pub fn active_item(&self, cx: &App) -> Option<Box<dyn ItemHandle>> {
 2869        self.active_pane().read(cx).active_item()
 2870    }
 2871
 2872    pub fn active_item_as<I: 'static>(&self, cx: &App) -> Option<Entity<I>> {
 2873        let item = self.active_item(cx)?;
 2874        item.to_any().downcast::<I>().ok()
 2875    }
 2876
 2877    fn active_project_path(&self, cx: &App) -> Option<ProjectPath> {
 2878        self.active_item(cx).and_then(|item| item.project_path(cx))
 2879    }
 2880
 2881    pub fn most_recent_active_path(&self, cx: &App) -> Option<PathBuf> {
 2882        self.recent_navigation_history_iter(cx)
 2883            .filter_map(|(path, abs_path)| {
 2884                let worktree = self
 2885                    .project
 2886                    .read(cx)
 2887                    .worktree_for_id(path.worktree_id, cx)?;
 2888                if worktree.read(cx).is_visible() {
 2889                    abs_path
 2890                } else {
 2891                    None
 2892                }
 2893            })
 2894            .next()
 2895    }
 2896
 2897    pub fn save_active_item(
 2898        &mut self,
 2899        save_intent: SaveIntent,
 2900        window: &mut Window,
 2901        cx: &mut App,
 2902    ) -> Task<Result<()>> {
 2903        let project = self.project.clone();
 2904        let pane = self.active_pane();
 2905        let item = pane.read(cx).active_item();
 2906        let pane = pane.downgrade();
 2907
 2908        window.spawn(cx, async move |cx| {
 2909            if let Some(item) = item {
 2910                Pane::save_item(project, &pane, item.as_ref(), save_intent, cx)
 2911                    .await
 2912                    .map(|_| ())
 2913            } else {
 2914                Ok(())
 2915            }
 2916        })
 2917    }
 2918
 2919    pub fn close_inactive_items_and_panes(
 2920        &mut self,
 2921        action: &CloseInactiveTabsAndPanes,
 2922        window: &mut Window,
 2923        cx: &mut Context<Self>,
 2924    ) {
 2925        if let Some(task) = self.close_all_internal(
 2926            true,
 2927            action.save_intent.unwrap_or(SaveIntent::Close),
 2928            window,
 2929            cx,
 2930        ) {
 2931            task.detach_and_log_err(cx)
 2932        }
 2933    }
 2934
 2935    pub fn close_all_items_and_panes(
 2936        &mut self,
 2937        action: &CloseAllItemsAndPanes,
 2938        window: &mut Window,
 2939        cx: &mut Context<Self>,
 2940    ) {
 2941        if let Some(task) = self.close_all_internal(
 2942            false,
 2943            action.save_intent.unwrap_or(SaveIntent::Close),
 2944            window,
 2945            cx,
 2946        ) {
 2947            task.detach_and_log_err(cx)
 2948        }
 2949    }
 2950
 2951    fn close_all_internal(
 2952        &mut self,
 2953        retain_active_pane: bool,
 2954        save_intent: SaveIntent,
 2955        window: &mut Window,
 2956        cx: &mut Context<Self>,
 2957    ) -> Option<Task<Result<()>>> {
 2958        let current_pane = self.active_pane();
 2959
 2960        let mut tasks = Vec::new();
 2961
 2962        if retain_active_pane {
 2963            let current_pane_close = current_pane.update(cx, |pane, cx| {
 2964                pane.close_other_items(
 2965                    &CloseOtherItems {
 2966                        save_intent: None,
 2967                        close_pinned: false,
 2968                    },
 2969                    None,
 2970                    window,
 2971                    cx,
 2972                )
 2973            });
 2974
 2975            tasks.push(current_pane_close);
 2976        }
 2977
 2978        for pane in self.panes() {
 2979            if retain_active_pane && pane.entity_id() == current_pane.entity_id() {
 2980                continue;
 2981            }
 2982
 2983            let close_pane_items = pane.update(cx, |pane: &mut Pane, cx| {
 2984                pane.close_all_items(
 2985                    &CloseAllItems {
 2986                        save_intent: Some(save_intent),
 2987                        close_pinned: false,
 2988                    },
 2989                    window,
 2990                    cx,
 2991                )
 2992            });
 2993
 2994            tasks.push(close_pane_items)
 2995        }
 2996
 2997        if tasks.is_empty() {
 2998            None
 2999        } else {
 3000            Some(cx.spawn_in(window, async move |_, _| {
 3001                for task in tasks {
 3002                    task.await?
 3003                }
 3004                Ok(())
 3005            }))
 3006        }
 3007    }
 3008
 3009    pub fn is_dock_at_position_open(&self, position: DockPosition, cx: &mut Context<Self>) -> bool {
 3010        self.dock_at_position(position).read(cx).is_open()
 3011    }
 3012
 3013    pub fn toggle_dock(
 3014        &mut self,
 3015        dock_side: DockPosition,
 3016        window: &mut Window,
 3017        cx: &mut Context<Self>,
 3018    ) {
 3019        let mut focus_center = false;
 3020        let mut reveal_dock = false;
 3021
 3022        let other_is_zoomed = self.zoomed.is_some() && self.zoomed_position != Some(dock_side);
 3023        let was_visible = self.is_dock_at_position_open(dock_side, cx) && !other_is_zoomed;
 3024        if was_visible {
 3025            self.save_open_dock_positions(cx);
 3026        }
 3027
 3028        let dock = self.dock_at_position(dock_side);
 3029        dock.update(cx, |dock, cx| {
 3030            dock.set_open(!was_visible, window, cx);
 3031
 3032            if dock.active_panel().is_none() {
 3033                let Some(panel_ix) = dock
 3034                    .first_enabled_panel_idx(cx)
 3035                    .log_with_level(log::Level::Info)
 3036                else {
 3037                    return;
 3038                };
 3039                dock.activate_panel(panel_ix, window, cx);
 3040            }
 3041
 3042            if let Some(active_panel) = dock.active_panel() {
 3043                if was_visible {
 3044                    if active_panel
 3045                        .panel_focus_handle(cx)
 3046                        .contains_focused(window, cx)
 3047                    {
 3048                        focus_center = true;
 3049                    }
 3050                } else {
 3051                    let focus_handle = &active_panel.panel_focus_handle(cx);
 3052                    window.focus(focus_handle);
 3053                    reveal_dock = true;
 3054                }
 3055            }
 3056        });
 3057
 3058        if reveal_dock {
 3059            self.dismiss_zoomed_items_to_reveal(Some(dock_side), window, cx);
 3060        }
 3061
 3062        if focus_center {
 3063            self.active_pane
 3064                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)))
 3065        }
 3066
 3067        cx.notify();
 3068        self.serialize_workspace(window, cx);
 3069    }
 3070
 3071    fn active_dock(&self, window: &Window, cx: &Context<Self>) -> Option<&Entity<Dock>> {
 3072        self.all_docks().into_iter().find(|&dock| {
 3073            dock.read(cx).is_open() && dock.focus_handle(cx).contains_focused(window, cx)
 3074        })
 3075    }
 3076
 3077    fn close_active_dock(&mut self, window: &mut Window, cx: &mut Context<Self>) -> bool {
 3078        if let Some(dock) = self.active_dock(window, cx).cloned() {
 3079            self.save_open_dock_positions(cx);
 3080            dock.update(cx, |dock, cx| {
 3081                dock.set_open(false, window, cx);
 3082            });
 3083            return true;
 3084        }
 3085        false
 3086    }
 3087
 3088    pub fn close_all_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3089        self.save_open_dock_positions(cx);
 3090        for dock in self.all_docks() {
 3091            dock.update(cx, |dock, cx| {
 3092                dock.set_open(false, window, cx);
 3093            });
 3094        }
 3095
 3096        cx.focus_self(window);
 3097        cx.notify();
 3098        self.serialize_workspace(window, cx);
 3099    }
 3100
 3101    fn get_open_dock_positions(&self, cx: &Context<Self>) -> Vec<DockPosition> {
 3102        self.all_docks()
 3103            .into_iter()
 3104            .filter_map(|dock| {
 3105                let dock_ref = dock.read(cx);
 3106                if dock_ref.is_open() {
 3107                    Some(dock_ref.position())
 3108                } else {
 3109                    None
 3110                }
 3111            })
 3112            .collect()
 3113    }
 3114
 3115    /// Saves the positions of currently open docks.
 3116    ///
 3117    /// Updates `last_open_dock_positions` with positions of all currently open
 3118    /// docks, to later be restored by the 'Toggle All Docks' action.
 3119    fn save_open_dock_positions(&mut self, cx: &mut Context<Self>) {
 3120        let open_dock_positions = self.get_open_dock_positions(cx);
 3121        if !open_dock_positions.is_empty() {
 3122            self.last_open_dock_positions = open_dock_positions;
 3123        }
 3124    }
 3125
 3126    /// Toggles all docks between open and closed states.
 3127    ///
 3128    /// If any docks are open, closes all and remembers their positions. If all
 3129    /// docks are closed, restores the last remembered dock configuration.
 3130    fn toggle_all_docks(
 3131        &mut self,
 3132        _: &ToggleAllDocks,
 3133        window: &mut Window,
 3134        cx: &mut Context<Self>,
 3135    ) {
 3136        let open_dock_positions = self.get_open_dock_positions(cx);
 3137
 3138        if !open_dock_positions.is_empty() {
 3139            self.close_all_docks(window, cx);
 3140        } else if !self.last_open_dock_positions.is_empty() {
 3141            self.restore_last_open_docks(window, cx);
 3142        }
 3143    }
 3144
 3145    /// Reopens docks from the most recently remembered configuration.
 3146    ///
 3147    /// Opens all docks whose positions are stored in `last_open_dock_positions`
 3148    /// and clears the stored positions.
 3149    fn restore_last_open_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3150        let positions_to_open = std::mem::take(&mut self.last_open_dock_positions);
 3151
 3152        for position in positions_to_open {
 3153            let dock = self.dock_at_position(position);
 3154            dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 3155        }
 3156
 3157        cx.focus_self(window);
 3158        cx.notify();
 3159        self.serialize_workspace(window, cx);
 3160    }
 3161
 3162    /// Transfer focus to the panel of the given type.
 3163    pub fn focus_panel<T: Panel>(
 3164        &mut self,
 3165        window: &mut Window,
 3166        cx: &mut Context<Self>,
 3167    ) -> Option<Entity<T>> {
 3168        let panel = self.focus_or_unfocus_panel::<T>(window, cx, |_, _, _| true)?;
 3169        panel.to_any().downcast().ok()
 3170    }
 3171
 3172    /// Focus the panel of the given type if it isn't already focused. If it is
 3173    /// already focused, then transfer focus back to the workspace center.
 3174    pub fn toggle_panel_focus<T: Panel>(
 3175        &mut self,
 3176        window: &mut Window,
 3177        cx: &mut Context<Self>,
 3178    ) -> bool {
 3179        let mut did_focus_panel = false;
 3180        self.focus_or_unfocus_panel::<T>(window, cx, |panel, window, cx| {
 3181            did_focus_panel = !panel.panel_focus_handle(cx).contains_focused(window, cx);
 3182            did_focus_panel
 3183        });
 3184        did_focus_panel
 3185    }
 3186
 3187    pub fn activate_panel_for_proto_id(
 3188        &mut self,
 3189        panel_id: PanelId,
 3190        window: &mut Window,
 3191        cx: &mut Context<Self>,
 3192    ) -> Option<Arc<dyn PanelHandle>> {
 3193        let mut panel = None;
 3194        for dock in self.all_docks() {
 3195            if let Some(panel_index) = dock.read(cx).panel_index_for_proto_id(panel_id) {
 3196                panel = dock.update(cx, |dock, cx| {
 3197                    dock.activate_panel(panel_index, window, cx);
 3198                    dock.set_open(true, window, cx);
 3199                    dock.active_panel().cloned()
 3200                });
 3201                break;
 3202            }
 3203        }
 3204
 3205        if panel.is_some() {
 3206            cx.notify();
 3207            self.serialize_workspace(window, cx);
 3208        }
 3209
 3210        panel
 3211    }
 3212
 3213    /// Focus or unfocus the given panel type, depending on the given callback.
 3214    fn focus_or_unfocus_panel<T: Panel>(
 3215        &mut self,
 3216        window: &mut Window,
 3217        cx: &mut Context<Self>,
 3218        mut should_focus: impl FnMut(&dyn PanelHandle, &mut Window, &mut Context<Dock>) -> bool,
 3219    ) -> Option<Arc<dyn PanelHandle>> {
 3220        let mut result_panel = None;
 3221        let mut serialize = false;
 3222        for dock in self.all_docks() {
 3223            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3224                let mut focus_center = false;
 3225                let panel = dock.update(cx, |dock, cx| {
 3226                    dock.activate_panel(panel_index, window, cx);
 3227
 3228                    let panel = dock.active_panel().cloned();
 3229                    if let Some(panel) = panel.as_ref() {
 3230                        if should_focus(&**panel, window, cx) {
 3231                            dock.set_open(true, window, cx);
 3232                            panel.panel_focus_handle(cx).focus(window);
 3233                        } else {
 3234                            focus_center = true;
 3235                        }
 3236                    }
 3237                    panel
 3238                });
 3239
 3240                if focus_center {
 3241                    self.active_pane
 3242                        .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)))
 3243                }
 3244
 3245                result_panel = panel;
 3246                serialize = true;
 3247                break;
 3248            }
 3249        }
 3250
 3251        if serialize {
 3252            self.serialize_workspace(window, cx);
 3253        }
 3254
 3255        cx.notify();
 3256        result_panel
 3257    }
 3258
 3259    /// Open the panel of the given type
 3260    pub fn open_panel<T: Panel>(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3261        for dock in self.all_docks() {
 3262            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3263                dock.update(cx, |dock, cx| {
 3264                    dock.activate_panel(panel_index, window, cx);
 3265                    dock.set_open(true, window, cx);
 3266                });
 3267            }
 3268        }
 3269    }
 3270
 3271    pub fn close_panel<T: Panel>(&self, window: &mut Window, cx: &mut Context<Self>) {
 3272        for dock in self.all_docks().iter() {
 3273            dock.update(cx, |dock, cx| {
 3274                if dock.panel::<T>().is_some() {
 3275                    dock.set_open(false, window, cx)
 3276                }
 3277            })
 3278        }
 3279    }
 3280
 3281    pub fn panel<T: Panel>(&self, cx: &App) -> Option<Entity<T>> {
 3282        self.all_docks()
 3283            .iter()
 3284            .find_map(|dock| dock.read(cx).panel::<T>())
 3285    }
 3286
 3287    fn dismiss_zoomed_items_to_reveal(
 3288        &mut self,
 3289        dock_to_reveal: Option<DockPosition>,
 3290        window: &mut Window,
 3291        cx: &mut Context<Self>,
 3292    ) {
 3293        // If a center pane is zoomed, unzoom it.
 3294        for pane in &self.panes {
 3295            if pane != &self.active_pane || dock_to_reveal.is_some() {
 3296                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 3297            }
 3298        }
 3299
 3300        // If another dock is zoomed, hide it.
 3301        let mut focus_center = false;
 3302        for dock in self.all_docks() {
 3303            dock.update(cx, |dock, cx| {
 3304                if Some(dock.position()) != dock_to_reveal
 3305                    && let Some(panel) = dock.active_panel()
 3306                    && panel.is_zoomed(window, cx)
 3307                {
 3308                    focus_center |= panel.panel_focus_handle(cx).contains_focused(window, cx);
 3309                    dock.set_open(false, window, cx);
 3310                }
 3311            });
 3312        }
 3313
 3314        if focus_center {
 3315            self.active_pane
 3316                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)))
 3317        }
 3318
 3319        if self.zoomed_position != dock_to_reveal {
 3320            self.zoomed = None;
 3321            self.zoomed_position = None;
 3322            cx.emit(Event::ZoomChanged);
 3323        }
 3324
 3325        cx.notify();
 3326    }
 3327
 3328    fn add_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 3329        let pane = cx.new(|cx| {
 3330            let mut pane = Pane::new(
 3331                self.weak_handle(),
 3332                self.project.clone(),
 3333                self.pane_history_timestamp.clone(),
 3334                None,
 3335                NewFile.boxed_clone(),
 3336                true,
 3337                window,
 3338                cx,
 3339            );
 3340            pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 3341            pane
 3342        });
 3343        cx.subscribe_in(&pane, window, Self::handle_pane_event)
 3344            .detach();
 3345        self.panes.push(pane.clone());
 3346
 3347        window.focus(&pane.focus_handle(cx));
 3348
 3349        cx.emit(Event::PaneAdded(pane.clone()));
 3350        pane
 3351    }
 3352
 3353    pub fn add_item_to_center(
 3354        &mut self,
 3355        item: Box<dyn ItemHandle>,
 3356        window: &mut Window,
 3357        cx: &mut Context<Self>,
 3358    ) -> bool {
 3359        if let Some(center_pane) = self.last_active_center_pane.clone() {
 3360            if let Some(center_pane) = center_pane.upgrade() {
 3361                center_pane.update(cx, |pane, cx| {
 3362                    pane.add_item(item, true, true, None, window, cx)
 3363                });
 3364                true
 3365            } else {
 3366                false
 3367            }
 3368        } else {
 3369            false
 3370        }
 3371    }
 3372
 3373    pub fn add_item_to_active_pane(
 3374        &mut self,
 3375        item: Box<dyn ItemHandle>,
 3376        destination_index: Option<usize>,
 3377        focus_item: bool,
 3378        window: &mut Window,
 3379        cx: &mut App,
 3380    ) {
 3381        self.add_item(
 3382            self.active_pane.clone(),
 3383            item,
 3384            destination_index,
 3385            false,
 3386            focus_item,
 3387            window,
 3388            cx,
 3389        )
 3390    }
 3391
 3392    pub fn add_item(
 3393        &mut self,
 3394        pane: Entity<Pane>,
 3395        item: Box<dyn ItemHandle>,
 3396        destination_index: Option<usize>,
 3397        activate_pane: bool,
 3398        focus_item: bool,
 3399        window: &mut Window,
 3400        cx: &mut App,
 3401    ) {
 3402        pane.update(cx, |pane, cx| {
 3403            pane.add_item(
 3404                item,
 3405                activate_pane,
 3406                focus_item,
 3407                destination_index,
 3408                window,
 3409                cx,
 3410            )
 3411        });
 3412    }
 3413
 3414    pub fn split_item(
 3415        &mut self,
 3416        split_direction: SplitDirection,
 3417        item: Box<dyn ItemHandle>,
 3418        window: &mut Window,
 3419        cx: &mut Context<Self>,
 3420    ) {
 3421        let new_pane = self.split_pane(self.active_pane.clone(), split_direction, window, cx);
 3422        self.add_item(new_pane, item, None, true, true, window, cx);
 3423    }
 3424
 3425    pub fn open_abs_path(
 3426        &mut self,
 3427        abs_path: PathBuf,
 3428        options: OpenOptions,
 3429        window: &mut Window,
 3430        cx: &mut Context<Self>,
 3431    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3432        cx.spawn_in(window, async move |workspace, cx| {
 3433            let open_paths_task_result = workspace
 3434                .update_in(cx, |workspace, window, cx| {
 3435                    workspace.open_paths(vec![abs_path.clone()], options, None, window, cx)
 3436                })
 3437                .with_context(|| format!("open abs path {abs_path:?} task spawn"))?
 3438                .await;
 3439            anyhow::ensure!(
 3440                open_paths_task_result.len() == 1,
 3441                "open abs path {abs_path:?} task returned incorrect number of results"
 3442            );
 3443            match open_paths_task_result
 3444                .into_iter()
 3445                .next()
 3446                .expect("ensured single task result")
 3447            {
 3448                Some(open_result) => {
 3449                    open_result.with_context(|| format!("open abs path {abs_path:?} task join"))
 3450                }
 3451                None => anyhow::bail!("open abs path {abs_path:?} task returned None"),
 3452            }
 3453        })
 3454    }
 3455
 3456    pub fn split_abs_path(
 3457        &mut self,
 3458        abs_path: PathBuf,
 3459        visible: bool,
 3460        window: &mut Window,
 3461        cx: &mut Context<Self>,
 3462    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3463        let project_path_task =
 3464            Workspace::project_path_for_path(self.project.clone(), &abs_path, visible, cx);
 3465        cx.spawn_in(window, async move |this, cx| {
 3466            let (_, path) = project_path_task.await?;
 3467            this.update_in(cx, |this, window, cx| this.split_path(path, window, cx))?
 3468                .await
 3469        })
 3470    }
 3471
 3472    pub fn open_path(
 3473        &mut self,
 3474        path: impl Into<ProjectPath>,
 3475        pane: Option<WeakEntity<Pane>>,
 3476        focus_item: bool,
 3477        window: &mut Window,
 3478        cx: &mut App,
 3479    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3480        self.open_path_preview(path, pane, focus_item, false, true, window, cx)
 3481    }
 3482
 3483    pub fn open_path_preview(
 3484        &mut self,
 3485        path: impl Into<ProjectPath>,
 3486        pane: Option<WeakEntity<Pane>>,
 3487        focus_item: bool,
 3488        allow_preview: bool,
 3489        activate: bool,
 3490        window: &mut Window,
 3491        cx: &mut App,
 3492    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3493        let pane = pane.unwrap_or_else(|| {
 3494            self.last_active_center_pane.clone().unwrap_or_else(|| {
 3495                self.panes
 3496                    .first()
 3497                    .expect("There must be an active pane")
 3498                    .downgrade()
 3499            })
 3500        });
 3501
 3502        let project_path = path.into();
 3503        let task = self.load_path(project_path.clone(), window, cx);
 3504        window.spawn(cx, async move |cx| {
 3505            let (project_entry_id, build_item) = task.await?;
 3506
 3507            pane.update_in(cx, |pane, window, cx| {
 3508                pane.open_item(
 3509                    project_entry_id,
 3510                    project_path,
 3511                    focus_item,
 3512                    allow_preview,
 3513                    activate,
 3514                    None,
 3515                    window,
 3516                    cx,
 3517                    build_item,
 3518                )
 3519            })
 3520        })
 3521    }
 3522
 3523    pub fn split_path(
 3524        &mut self,
 3525        path: impl Into<ProjectPath>,
 3526        window: &mut Window,
 3527        cx: &mut Context<Self>,
 3528    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3529        self.split_path_preview(path, false, None, window, cx)
 3530    }
 3531
 3532    pub fn split_path_preview(
 3533        &mut self,
 3534        path: impl Into<ProjectPath>,
 3535        allow_preview: bool,
 3536        split_direction: Option<SplitDirection>,
 3537        window: &mut Window,
 3538        cx: &mut Context<Self>,
 3539    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3540        let pane = self.last_active_center_pane.clone().unwrap_or_else(|| {
 3541            self.panes
 3542                .first()
 3543                .expect("There must be an active pane")
 3544                .downgrade()
 3545        });
 3546
 3547        if let Member::Pane(center_pane) = &self.center.root
 3548            && center_pane.read(cx).items_len() == 0
 3549        {
 3550            return self.open_path(path, Some(pane), true, window, cx);
 3551        }
 3552
 3553        let project_path = path.into();
 3554        let task = self.load_path(project_path.clone(), window, cx);
 3555        cx.spawn_in(window, async move |this, cx| {
 3556            let (project_entry_id, build_item) = task.await?;
 3557            this.update_in(cx, move |this, window, cx| -> Option<_> {
 3558                let pane = pane.upgrade()?;
 3559                let new_pane = this.split_pane(
 3560                    pane,
 3561                    split_direction.unwrap_or(SplitDirection::Right),
 3562                    window,
 3563                    cx,
 3564                );
 3565                new_pane.update(cx, |new_pane, cx| {
 3566                    Some(new_pane.open_item(
 3567                        project_entry_id,
 3568                        project_path,
 3569                        true,
 3570                        allow_preview,
 3571                        true,
 3572                        None,
 3573                        window,
 3574                        cx,
 3575                        build_item,
 3576                    ))
 3577                })
 3578            })
 3579            .map(|option| option.context("pane was dropped"))?
 3580        })
 3581    }
 3582
 3583    fn load_path(
 3584        &mut self,
 3585        path: ProjectPath,
 3586        window: &mut Window,
 3587        cx: &mut App,
 3588    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
 3589        let registry = cx.default_global::<ProjectItemRegistry>().clone();
 3590        registry.open_path(self.project(), &path, window, cx)
 3591    }
 3592
 3593    pub fn find_project_item<T>(
 3594        &self,
 3595        pane: &Entity<Pane>,
 3596        project_item: &Entity<T::Item>,
 3597        cx: &App,
 3598    ) -> Option<Entity<T>>
 3599    where
 3600        T: ProjectItem,
 3601    {
 3602        use project::ProjectItem as _;
 3603        let project_item = project_item.read(cx);
 3604        let entry_id = project_item.entry_id(cx);
 3605        let project_path = project_item.project_path(cx);
 3606
 3607        let mut item = None;
 3608        if let Some(entry_id) = entry_id {
 3609            item = pane.read(cx).item_for_entry(entry_id, cx);
 3610        }
 3611        if item.is_none()
 3612            && let Some(project_path) = project_path
 3613        {
 3614            item = pane.read(cx).item_for_path(project_path, cx);
 3615        }
 3616
 3617        item.and_then(|item| item.downcast::<T>())
 3618    }
 3619
 3620    pub fn is_project_item_open<T>(
 3621        &self,
 3622        pane: &Entity<Pane>,
 3623        project_item: &Entity<T::Item>,
 3624        cx: &App,
 3625    ) -> bool
 3626    where
 3627        T: ProjectItem,
 3628    {
 3629        self.find_project_item::<T>(pane, project_item, cx)
 3630            .is_some()
 3631    }
 3632
 3633    pub fn open_project_item<T>(
 3634        &mut self,
 3635        pane: Entity<Pane>,
 3636        project_item: Entity<T::Item>,
 3637        activate_pane: bool,
 3638        focus_item: bool,
 3639        window: &mut Window,
 3640        cx: &mut Context<Self>,
 3641    ) -> Entity<T>
 3642    where
 3643        T: ProjectItem,
 3644    {
 3645        if let Some(item) = self.find_project_item(&pane, &project_item, cx) {
 3646            self.activate_item(&item, activate_pane, focus_item, window, cx);
 3647            return item;
 3648        }
 3649
 3650        let item = pane.update(cx, |pane, cx| {
 3651            cx.new(|cx| {
 3652                T::for_project_item(self.project().clone(), Some(pane), project_item, window, cx)
 3653            })
 3654        });
 3655        let item_id = item.item_id();
 3656        let mut destination_index = None;
 3657        pane.update(cx, |pane, cx| {
 3658            if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation
 3659                && let Some(preview_item_id) = pane.preview_item_id()
 3660                && preview_item_id != item_id
 3661            {
 3662                destination_index = pane.close_current_preview_item(window, cx);
 3663            }
 3664            pane.set_preview_item_id(Some(item.item_id()), cx)
 3665        });
 3666
 3667        self.add_item(
 3668            pane,
 3669            Box::new(item.clone()),
 3670            destination_index,
 3671            activate_pane,
 3672            focus_item,
 3673            window,
 3674            cx,
 3675        );
 3676        item
 3677    }
 3678
 3679    pub fn open_shared_screen(
 3680        &mut self,
 3681        peer_id: PeerId,
 3682        window: &mut Window,
 3683        cx: &mut Context<Self>,
 3684    ) {
 3685        if let Some(shared_screen) =
 3686            self.shared_screen_for_peer(peer_id, &self.active_pane, window, cx)
 3687        {
 3688            self.active_pane.update(cx, |pane, cx| {
 3689                pane.add_item(Box::new(shared_screen), false, true, None, window, cx)
 3690            });
 3691        }
 3692    }
 3693
 3694    pub fn activate_item(
 3695        &mut self,
 3696        item: &dyn ItemHandle,
 3697        activate_pane: bool,
 3698        focus_item: bool,
 3699        window: &mut Window,
 3700        cx: &mut App,
 3701    ) -> bool {
 3702        let result = self.panes.iter().find_map(|pane| {
 3703            pane.read(cx)
 3704                .index_for_item(item)
 3705                .map(|ix| (pane.clone(), ix))
 3706        });
 3707        if let Some((pane, ix)) = result {
 3708            pane.update(cx, |pane, cx| {
 3709                pane.activate_item(ix, activate_pane, focus_item, window, cx)
 3710            });
 3711            true
 3712        } else {
 3713            false
 3714        }
 3715    }
 3716
 3717    fn activate_pane_at_index(
 3718        &mut self,
 3719        action: &ActivatePane,
 3720        window: &mut Window,
 3721        cx: &mut Context<Self>,
 3722    ) {
 3723        let panes = self.center.panes();
 3724        if let Some(pane) = panes.get(action.0).map(|p| (*p).clone()) {
 3725            window.focus(&pane.focus_handle(cx));
 3726        } else {
 3727            self.split_and_clone(self.active_pane.clone(), SplitDirection::Right, window, cx)
 3728                .detach();
 3729        }
 3730    }
 3731
 3732    fn move_item_to_pane_at_index(
 3733        &mut self,
 3734        action: &MoveItemToPane,
 3735        window: &mut Window,
 3736        cx: &mut Context<Self>,
 3737    ) {
 3738        let panes = self.center.panes();
 3739        let destination = match panes.get(action.destination) {
 3740            Some(&destination) => destination.clone(),
 3741            None => {
 3742                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 3743                    return;
 3744                }
 3745                let direction = SplitDirection::Right;
 3746                let split_off_pane = self
 3747                    .find_pane_in_direction(direction, cx)
 3748                    .unwrap_or_else(|| self.active_pane.clone());
 3749                let new_pane = self.add_pane(window, cx);
 3750                if self
 3751                    .center
 3752                    .split(&split_off_pane, &new_pane, direction)
 3753                    .log_err()
 3754                    .is_none()
 3755                {
 3756                    return;
 3757                };
 3758                new_pane
 3759            }
 3760        };
 3761
 3762        if action.clone {
 3763            if self
 3764                .active_pane
 3765                .read(cx)
 3766                .active_item()
 3767                .is_some_and(|item| item.can_split(cx))
 3768            {
 3769                clone_active_item(
 3770                    self.database_id(),
 3771                    &self.active_pane,
 3772                    &destination,
 3773                    action.focus,
 3774                    window,
 3775                    cx,
 3776                );
 3777                return;
 3778            }
 3779        }
 3780        move_active_item(
 3781            &self.active_pane,
 3782            &destination,
 3783            action.focus,
 3784            true,
 3785            window,
 3786            cx,
 3787        )
 3788    }
 3789
 3790    pub fn activate_next_pane(&mut self, window: &mut Window, cx: &mut App) {
 3791        let panes = self.center.panes();
 3792        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 3793            let next_ix = (ix + 1) % panes.len();
 3794            let next_pane = panes[next_ix].clone();
 3795            window.focus(&next_pane.focus_handle(cx));
 3796        }
 3797    }
 3798
 3799    pub fn activate_previous_pane(&mut self, window: &mut Window, cx: &mut App) {
 3800        let panes = self.center.panes();
 3801        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 3802            let prev_ix = cmp::min(ix.wrapping_sub(1), panes.len() - 1);
 3803            let prev_pane = panes[prev_ix].clone();
 3804            window.focus(&prev_pane.focus_handle(cx));
 3805        }
 3806    }
 3807
 3808    pub fn activate_pane_in_direction(
 3809        &mut self,
 3810        direction: SplitDirection,
 3811        window: &mut Window,
 3812        cx: &mut App,
 3813    ) {
 3814        use ActivateInDirectionTarget as Target;
 3815        enum Origin {
 3816            LeftDock,
 3817            RightDock,
 3818            BottomDock,
 3819            Center,
 3820        }
 3821
 3822        let origin: Origin = [
 3823            (&self.left_dock, Origin::LeftDock),
 3824            (&self.right_dock, Origin::RightDock),
 3825            (&self.bottom_dock, Origin::BottomDock),
 3826        ]
 3827        .into_iter()
 3828        .find_map(|(dock, origin)| {
 3829            if dock.focus_handle(cx).contains_focused(window, cx) && dock.read(cx).is_open() {
 3830                Some(origin)
 3831            } else {
 3832                None
 3833            }
 3834        })
 3835        .unwrap_or(Origin::Center);
 3836
 3837        let get_last_active_pane = || {
 3838            let pane = self
 3839                .last_active_center_pane
 3840                .clone()
 3841                .unwrap_or_else(|| {
 3842                    self.panes
 3843                        .first()
 3844                        .expect("There must be an active pane")
 3845                        .downgrade()
 3846                })
 3847                .upgrade()?;
 3848            (pane.read(cx).items_len() != 0).then_some(pane)
 3849        };
 3850
 3851        let try_dock =
 3852            |dock: &Entity<Dock>| dock.read(cx).is_open().then(|| Target::Dock(dock.clone()));
 3853
 3854        let target = match (origin, direction) {
 3855            // We're in the center, so we first try to go to a different pane,
 3856            // otherwise try to go to a dock.
 3857            (Origin::Center, direction) => {
 3858                if let Some(pane) = self.find_pane_in_direction(direction, cx) {
 3859                    Some(Target::Pane(pane))
 3860                } else {
 3861                    match direction {
 3862                        SplitDirection::Up => None,
 3863                        SplitDirection::Down => try_dock(&self.bottom_dock),
 3864                        SplitDirection::Left => try_dock(&self.left_dock),
 3865                        SplitDirection::Right => try_dock(&self.right_dock),
 3866                    }
 3867                }
 3868            }
 3869
 3870            (Origin::LeftDock, SplitDirection::Right) => {
 3871                if let Some(last_active_pane) = get_last_active_pane() {
 3872                    Some(Target::Pane(last_active_pane))
 3873                } else {
 3874                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.right_dock))
 3875                }
 3876            }
 3877
 3878            (Origin::LeftDock, SplitDirection::Down)
 3879            | (Origin::RightDock, SplitDirection::Down) => try_dock(&self.bottom_dock),
 3880
 3881            (Origin::BottomDock, SplitDirection::Up) => get_last_active_pane().map(Target::Pane),
 3882            (Origin::BottomDock, SplitDirection::Left) => try_dock(&self.left_dock),
 3883            (Origin::BottomDock, SplitDirection::Right) => try_dock(&self.right_dock),
 3884
 3885            (Origin::RightDock, SplitDirection::Left) => {
 3886                if let Some(last_active_pane) = get_last_active_pane() {
 3887                    Some(Target::Pane(last_active_pane))
 3888                } else {
 3889                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.left_dock))
 3890                }
 3891            }
 3892
 3893            _ => None,
 3894        };
 3895
 3896        match target {
 3897            Some(ActivateInDirectionTarget::Pane(pane)) => {
 3898                let pane = pane.read(cx);
 3899                if let Some(item) = pane.active_item() {
 3900                    item.item_focus_handle(cx).focus(window);
 3901                } else {
 3902                    log::error!(
 3903                        "Could not find a focus target when in switching focus in {direction} direction for a pane",
 3904                    );
 3905                }
 3906            }
 3907            Some(ActivateInDirectionTarget::Dock(dock)) => {
 3908                // Defer this to avoid a panic when the dock's active panel is already on the stack.
 3909                window.defer(cx, move |window, cx| {
 3910                    let dock = dock.read(cx);
 3911                    if let Some(panel) = dock.active_panel() {
 3912                        panel.panel_focus_handle(cx).focus(window);
 3913                    } else {
 3914                        log::error!("Could not find a focus target when in switching focus in {direction} direction for a {:?} dock", dock.position());
 3915                    }
 3916                })
 3917            }
 3918            None => {}
 3919        }
 3920    }
 3921
 3922    pub fn move_item_to_pane_in_direction(
 3923        &mut self,
 3924        action: &MoveItemToPaneInDirection,
 3925        window: &mut Window,
 3926        cx: &mut Context<Self>,
 3927    ) {
 3928        let destination = match self.find_pane_in_direction(action.direction, cx) {
 3929            Some(destination) => destination,
 3930            None => {
 3931                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 3932                    return;
 3933                }
 3934                let new_pane = self.add_pane(window, cx);
 3935                if self
 3936                    .center
 3937                    .split(&self.active_pane, &new_pane, action.direction)
 3938                    .log_err()
 3939                    .is_none()
 3940                {
 3941                    return;
 3942                };
 3943                new_pane
 3944            }
 3945        };
 3946
 3947        if action.clone {
 3948            if self
 3949                .active_pane
 3950                .read(cx)
 3951                .active_item()
 3952                .is_some_and(|item| item.can_split(cx))
 3953            {
 3954                clone_active_item(
 3955                    self.database_id(),
 3956                    &self.active_pane,
 3957                    &destination,
 3958                    action.focus,
 3959                    window,
 3960                    cx,
 3961                );
 3962                return;
 3963            }
 3964        }
 3965        move_active_item(
 3966            &self.active_pane,
 3967            &destination,
 3968            action.focus,
 3969            true,
 3970            window,
 3971            cx,
 3972        );
 3973    }
 3974
 3975    pub fn bounding_box_for_pane(&self, pane: &Entity<Pane>) -> Option<Bounds<Pixels>> {
 3976        self.center.bounding_box_for_pane(pane)
 3977    }
 3978
 3979    pub fn find_pane_in_direction(
 3980        &mut self,
 3981        direction: SplitDirection,
 3982        cx: &App,
 3983    ) -> Option<Entity<Pane>> {
 3984        self.center
 3985            .find_pane_in_direction(&self.active_pane, direction, cx)
 3986            .cloned()
 3987    }
 3988
 3989    pub fn swap_pane_in_direction(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 3990        if let Some(to) = self.find_pane_in_direction(direction, cx) {
 3991            self.center.swap(&self.active_pane, &to);
 3992            cx.notify();
 3993        }
 3994    }
 3995
 3996    pub fn move_pane_to_border(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 3997        if self
 3998            .center
 3999            .move_to_border(&self.active_pane, direction)
 4000            .unwrap()
 4001        {
 4002            cx.notify();
 4003        }
 4004    }
 4005
 4006    pub fn resize_pane(
 4007        &mut self,
 4008        axis: gpui::Axis,
 4009        amount: Pixels,
 4010        window: &mut Window,
 4011        cx: &mut Context<Self>,
 4012    ) {
 4013        let docks = self.all_docks();
 4014        let active_dock = docks
 4015            .into_iter()
 4016            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 4017
 4018        if let Some(dock) = active_dock {
 4019            let Some(panel_size) = dock.read(cx).active_panel_size(window, cx) else {
 4020                return;
 4021            };
 4022            match dock.read(cx).position() {
 4023                DockPosition::Left => self.resize_left_dock(panel_size + amount, window, cx),
 4024                DockPosition::Bottom => self.resize_bottom_dock(panel_size + amount, window, cx),
 4025                DockPosition::Right => self.resize_right_dock(panel_size + amount, window, cx),
 4026            }
 4027        } else {
 4028            self.center
 4029                .resize(&self.active_pane, axis, amount, &self.bounds);
 4030        }
 4031        cx.notify();
 4032    }
 4033
 4034    pub fn reset_pane_sizes(&mut self, cx: &mut Context<Self>) {
 4035        self.center.reset_pane_sizes();
 4036        cx.notify();
 4037    }
 4038
 4039    fn handle_pane_focused(
 4040        &mut self,
 4041        pane: Entity<Pane>,
 4042        window: &mut Window,
 4043        cx: &mut Context<Self>,
 4044    ) {
 4045        // This is explicitly hoisted out of the following check for pane identity as
 4046        // terminal panel panes are not registered as a center panes.
 4047        self.status_bar.update(cx, |status_bar, cx| {
 4048            status_bar.set_active_pane(&pane, window, cx);
 4049        });
 4050        if self.active_pane != pane {
 4051            self.set_active_pane(&pane, window, cx);
 4052        }
 4053
 4054        if self.last_active_center_pane.is_none() {
 4055            self.last_active_center_pane = Some(pane.downgrade());
 4056        }
 4057
 4058        self.dismiss_zoomed_items_to_reveal(None, window, cx);
 4059        if pane.read(cx).is_zoomed() {
 4060            self.zoomed = Some(pane.downgrade().into());
 4061        } else {
 4062            self.zoomed = None;
 4063        }
 4064        self.zoomed_position = None;
 4065        cx.emit(Event::ZoomChanged);
 4066        self.update_active_view_for_followers(window, cx);
 4067        pane.update(cx, |pane, _| {
 4068            pane.track_alternate_file_items();
 4069        });
 4070
 4071        cx.notify();
 4072    }
 4073
 4074    fn set_active_pane(
 4075        &mut self,
 4076        pane: &Entity<Pane>,
 4077        window: &mut Window,
 4078        cx: &mut Context<Self>,
 4079    ) {
 4080        self.active_pane = pane.clone();
 4081        self.active_item_path_changed(window, cx);
 4082        self.last_active_center_pane = Some(pane.downgrade());
 4083    }
 4084
 4085    fn handle_panel_focused(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4086        self.update_active_view_for_followers(window, cx);
 4087    }
 4088
 4089    fn handle_pane_event(
 4090        &mut self,
 4091        pane: &Entity<Pane>,
 4092        event: &pane::Event,
 4093        window: &mut Window,
 4094        cx: &mut Context<Self>,
 4095    ) {
 4096        let mut serialize_workspace = true;
 4097        match event {
 4098            pane::Event::AddItem { item } => {
 4099                item.added_to_pane(self, pane.clone(), window, cx);
 4100                cx.emit(Event::ItemAdded {
 4101                    item: item.boxed_clone(),
 4102                });
 4103            }
 4104            pane::Event::Split {
 4105                direction,
 4106                clone_active_item,
 4107            } => {
 4108                if *clone_active_item {
 4109                    self.split_and_clone(pane.clone(), *direction, window, cx)
 4110                        .detach();
 4111                } else {
 4112                    self.split_and_move(pane.clone(), *direction, window, cx);
 4113                }
 4114            }
 4115            pane::Event::JoinIntoNext => {
 4116                self.join_pane_into_next(pane.clone(), window, cx);
 4117            }
 4118            pane::Event::JoinAll => {
 4119                self.join_all_panes(window, cx);
 4120            }
 4121            pane::Event::Remove { focus_on_pane } => {
 4122                self.remove_pane(pane.clone(), focus_on_pane.clone(), window, cx);
 4123            }
 4124            pane::Event::ActivateItem {
 4125                local,
 4126                focus_changed,
 4127            } => {
 4128                window.invalidate_character_coordinates();
 4129
 4130                pane.update(cx, |pane, _| {
 4131                    pane.track_alternate_file_items();
 4132                });
 4133                if *local {
 4134                    self.unfollow_in_pane(pane, window, cx);
 4135                }
 4136                serialize_workspace = *focus_changed || pane != self.active_pane();
 4137                if pane == self.active_pane() {
 4138                    self.active_item_path_changed(window, cx);
 4139                    self.update_active_view_for_followers(window, cx);
 4140                } else if *local {
 4141                    self.set_active_pane(pane, window, cx);
 4142                }
 4143            }
 4144            pane::Event::UserSavedItem { item, save_intent } => {
 4145                cx.emit(Event::UserSavedItem {
 4146                    pane: pane.downgrade(),
 4147                    item: item.boxed_clone(),
 4148                    save_intent: *save_intent,
 4149                });
 4150                serialize_workspace = false;
 4151            }
 4152            pane::Event::ChangeItemTitle => {
 4153                if *pane == self.active_pane {
 4154                    self.active_item_path_changed(window, cx);
 4155                }
 4156                serialize_workspace = false;
 4157            }
 4158            pane::Event::RemovedItem { item } => {
 4159                cx.emit(Event::ActiveItemChanged);
 4160                self.update_window_edited(window, cx);
 4161                if let hash_map::Entry::Occupied(entry) = self.panes_by_item.entry(item.item_id())
 4162                    && entry.get().entity_id() == pane.entity_id()
 4163                {
 4164                    entry.remove();
 4165                }
 4166                cx.emit(Event::ItemRemoved {
 4167                    item_id: item.item_id(),
 4168                });
 4169            }
 4170            pane::Event::Focus => {
 4171                window.invalidate_character_coordinates();
 4172                self.handle_pane_focused(pane.clone(), window, cx);
 4173            }
 4174            pane::Event::ZoomIn => {
 4175                if *pane == self.active_pane {
 4176                    pane.update(cx, |pane, cx| pane.set_zoomed(true, cx));
 4177                    if pane.read(cx).has_focus(window, cx) {
 4178                        self.zoomed = Some(pane.downgrade().into());
 4179                        self.zoomed_position = None;
 4180                        cx.emit(Event::ZoomChanged);
 4181                    }
 4182                    cx.notify();
 4183                }
 4184            }
 4185            pane::Event::ZoomOut => {
 4186                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 4187                if self.zoomed_position.is_none() {
 4188                    self.zoomed = None;
 4189                    cx.emit(Event::ZoomChanged);
 4190                }
 4191                cx.notify();
 4192            }
 4193            pane::Event::ItemPinned | pane::Event::ItemUnpinned => {}
 4194        }
 4195
 4196        if serialize_workspace {
 4197            self.serialize_workspace(window, cx);
 4198        }
 4199    }
 4200
 4201    pub fn unfollow_in_pane(
 4202        &mut self,
 4203        pane: &Entity<Pane>,
 4204        window: &mut Window,
 4205        cx: &mut Context<Workspace>,
 4206    ) -> Option<CollaboratorId> {
 4207        let leader_id = self.leader_for_pane(pane)?;
 4208        self.unfollow(leader_id, window, cx);
 4209        Some(leader_id)
 4210    }
 4211
 4212    pub fn split_pane(
 4213        &mut self,
 4214        pane_to_split: Entity<Pane>,
 4215        split_direction: SplitDirection,
 4216        window: &mut Window,
 4217        cx: &mut Context<Self>,
 4218    ) -> Entity<Pane> {
 4219        let new_pane = self.add_pane(window, cx);
 4220        self.center
 4221            .split(&pane_to_split, &new_pane, split_direction)
 4222            .unwrap();
 4223        cx.notify();
 4224        new_pane
 4225    }
 4226
 4227    pub fn split_and_move(
 4228        &mut self,
 4229        pane: Entity<Pane>,
 4230        direction: SplitDirection,
 4231        window: &mut Window,
 4232        cx: &mut Context<Self>,
 4233    ) {
 4234        let Some(item) = pane.update(cx, |pane, cx| pane.take_active_item(window, cx)) else {
 4235            return;
 4236        };
 4237        let new_pane = self.add_pane(window, cx);
 4238        new_pane.update(cx, |pane, cx| {
 4239            pane.add_item(item, true, true, None, window, cx)
 4240        });
 4241        self.center.split(&pane, &new_pane, direction).unwrap();
 4242        cx.notify();
 4243    }
 4244
 4245    pub fn split_and_clone(
 4246        &mut self,
 4247        pane: Entity<Pane>,
 4248        direction: SplitDirection,
 4249        window: &mut Window,
 4250        cx: &mut Context<Self>,
 4251    ) -> Task<Option<Entity<Pane>>> {
 4252        let Some(item) = pane.read(cx).active_item() else {
 4253            return Task::ready(None);
 4254        };
 4255        if !item.can_split(cx) {
 4256            return Task::ready(None);
 4257        }
 4258        let task = item.clone_on_split(self.database_id(), window, cx);
 4259        cx.spawn_in(window, async move |this, cx| {
 4260            if let Some(clone) = task.await {
 4261                this.update_in(cx, |this, window, cx| {
 4262                    let new_pane = this.add_pane(window, cx);
 4263                    new_pane.update(cx, |pane, cx| {
 4264                        pane.add_item(clone, true, true, None, window, cx)
 4265                    });
 4266                    this.center.split(&pane, &new_pane, direction).unwrap();
 4267                    cx.notify();
 4268                    new_pane
 4269                })
 4270                .ok()
 4271            } else {
 4272                None
 4273            }
 4274        })
 4275    }
 4276
 4277    pub fn join_all_panes(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4278        let active_item = self.active_pane.read(cx).active_item();
 4279        for pane in &self.panes {
 4280            join_pane_into_active(&self.active_pane, pane, window, cx);
 4281        }
 4282        if let Some(active_item) = active_item {
 4283            self.activate_item(active_item.as_ref(), true, true, window, cx);
 4284        }
 4285        cx.notify();
 4286    }
 4287
 4288    pub fn join_pane_into_next(
 4289        &mut self,
 4290        pane: Entity<Pane>,
 4291        window: &mut Window,
 4292        cx: &mut Context<Self>,
 4293    ) {
 4294        let next_pane = self
 4295            .find_pane_in_direction(SplitDirection::Right, cx)
 4296            .or_else(|| self.find_pane_in_direction(SplitDirection::Down, cx))
 4297            .or_else(|| self.find_pane_in_direction(SplitDirection::Left, cx))
 4298            .or_else(|| self.find_pane_in_direction(SplitDirection::Up, cx));
 4299        let Some(next_pane) = next_pane else {
 4300            return;
 4301        };
 4302        move_all_items(&pane, &next_pane, window, cx);
 4303        cx.notify();
 4304    }
 4305
 4306    fn remove_pane(
 4307        &mut self,
 4308        pane: Entity<Pane>,
 4309        focus_on: Option<Entity<Pane>>,
 4310        window: &mut Window,
 4311        cx: &mut Context<Self>,
 4312    ) {
 4313        if self.center.remove(&pane).unwrap() {
 4314            self.force_remove_pane(&pane, &focus_on, window, cx);
 4315            self.unfollow_in_pane(&pane, window, cx);
 4316            self.last_leaders_by_pane.remove(&pane.downgrade());
 4317            for removed_item in pane.read(cx).items() {
 4318                self.panes_by_item.remove(&removed_item.item_id());
 4319            }
 4320
 4321            cx.notify();
 4322        } else {
 4323            self.active_item_path_changed(window, cx);
 4324        }
 4325        cx.emit(Event::PaneRemoved);
 4326    }
 4327
 4328    pub fn panes_mut(&mut self) -> &mut [Entity<Pane>] {
 4329        &mut self.panes
 4330    }
 4331
 4332    pub fn panes(&self) -> &[Entity<Pane>] {
 4333        &self.panes
 4334    }
 4335
 4336    pub fn active_pane(&self) -> &Entity<Pane> {
 4337        &self.active_pane
 4338    }
 4339
 4340    pub fn focused_pane(&self, window: &Window, cx: &App) -> Entity<Pane> {
 4341        for dock in self.all_docks() {
 4342            if dock.focus_handle(cx).contains_focused(window, cx)
 4343                && let Some(pane) = dock
 4344                    .read(cx)
 4345                    .active_panel()
 4346                    .and_then(|panel| panel.pane(cx))
 4347            {
 4348                return pane;
 4349            }
 4350        }
 4351        self.active_pane().clone()
 4352    }
 4353
 4354    pub fn adjacent_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 4355        self.find_pane_in_direction(SplitDirection::Right, cx)
 4356            .unwrap_or_else(|| {
 4357                self.split_pane(self.active_pane.clone(), SplitDirection::Right, window, cx)
 4358            })
 4359    }
 4360
 4361    pub fn pane_for(&self, handle: &dyn ItemHandle) -> Option<Entity<Pane>> {
 4362        let weak_pane = self.panes_by_item.get(&handle.item_id())?;
 4363        weak_pane.upgrade()
 4364    }
 4365
 4366    fn collaborator_left(&mut self, peer_id: PeerId, window: &mut Window, cx: &mut Context<Self>) {
 4367        self.follower_states.retain(|leader_id, state| {
 4368            if *leader_id == CollaboratorId::PeerId(peer_id) {
 4369                for item in state.items_by_leader_view_id.values() {
 4370                    item.view.set_leader_id(None, window, cx);
 4371                }
 4372                false
 4373            } else {
 4374                true
 4375            }
 4376        });
 4377        cx.notify();
 4378    }
 4379
 4380    pub fn start_following(
 4381        &mut self,
 4382        leader_id: impl Into<CollaboratorId>,
 4383        window: &mut Window,
 4384        cx: &mut Context<Self>,
 4385    ) -> Option<Task<Result<()>>> {
 4386        let leader_id = leader_id.into();
 4387        let pane = self.active_pane().clone();
 4388
 4389        self.last_leaders_by_pane
 4390            .insert(pane.downgrade(), leader_id);
 4391        self.unfollow(leader_id, window, cx);
 4392        self.unfollow_in_pane(&pane, window, cx);
 4393        self.follower_states.insert(
 4394            leader_id,
 4395            FollowerState {
 4396                center_pane: pane.clone(),
 4397                dock_pane: None,
 4398                active_view_id: None,
 4399                items_by_leader_view_id: Default::default(),
 4400            },
 4401        );
 4402        cx.notify();
 4403
 4404        match leader_id {
 4405            CollaboratorId::PeerId(leader_peer_id) => {
 4406                let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4407                let project_id = self.project.read(cx).remote_id();
 4408                let request = self.app_state.client.request(proto::Follow {
 4409                    room_id,
 4410                    project_id,
 4411                    leader_id: Some(leader_peer_id),
 4412                });
 4413
 4414                Some(cx.spawn_in(window, async move |this, cx| {
 4415                    let response = request.await?;
 4416                    this.update(cx, |this, _| {
 4417                        let state = this
 4418                            .follower_states
 4419                            .get_mut(&leader_id)
 4420                            .context("following interrupted")?;
 4421                        state.active_view_id = response
 4422                            .active_view
 4423                            .as_ref()
 4424                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4425                        anyhow::Ok(())
 4426                    })??;
 4427                    if let Some(view) = response.active_view {
 4428                        Self::add_view_from_leader(this.clone(), leader_peer_id, &view, cx).await?;
 4429                    }
 4430                    this.update_in(cx, |this, window, cx| {
 4431                        this.leader_updated(leader_id, window, cx)
 4432                    })?;
 4433                    Ok(())
 4434                }))
 4435            }
 4436            CollaboratorId::Agent => {
 4437                self.leader_updated(leader_id, window, cx)?;
 4438                Some(Task::ready(Ok(())))
 4439            }
 4440        }
 4441    }
 4442
 4443    pub fn follow_next_collaborator(
 4444        &mut self,
 4445        _: &FollowNextCollaborator,
 4446        window: &mut Window,
 4447        cx: &mut Context<Self>,
 4448    ) {
 4449        let collaborators = self.project.read(cx).collaborators();
 4450        let next_leader_id = if let Some(leader_id) = self.leader_for_pane(&self.active_pane) {
 4451            let mut collaborators = collaborators.keys().copied();
 4452            for peer_id in collaborators.by_ref() {
 4453                if CollaboratorId::PeerId(peer_id) == leader_id {
 4454                    break;
 4455                }
 4456            }
 4457            collaborators.next().map(CollaboratorId::PeerId)
 4458        } else if let Some(last_leader_id) =
 4459            self.last_leaders_by_pane.get(&self.active_pane.downgrade())
 4460        {
 4461            match last_leader_id {
 4462                CollaboratorId::PeerId(peer_id) => {
 4463                    if collaborators.contains_key(peer_id) {
 4464                        Some(*last_leader_id)
 4465                    } else {
 4466                        None
 4467                    }
 4468                }
 4469                CollaboratorId::Agent => Some(CollaboratorId::Agent),
 4470            }
 4471        } else {
 4472            None
 4473        };
 4474
 4475        let pane = self.active_pane.clone();
 4476        let Some(leader_id) = next_leader_id.or_else(|| {
 4477            Some(CollaboratorId::PeerId(
 4478                collaborators.keys().copied().next()?,
 4479            ))
 4480        }) else {
 4481            return;
 4482        };
 4483        if self.unfollow_in_pane(&pane, window, cx) == Some(leader_id) {
 4484            return;
 4485        }
 4486        if let Some(task) = self.start_following(leader_id, window, cx) {
 4487            task.detach_and_log_err(cx)
 4488        }
 4489    }
 4490
 4491    pub fn follow(
 4492        &mut self,
 4493        leader_id: impl Into<CollaboratorId>,
 4494        window: &mut Window,
 4495        cx: &mut Context<Self>,
 4496    ) {
 4497        let leader_id = leader_id.into();
 4498
 4499        if let CollaboratorId::PeerId(peer_id) = leader_id {
 4500            let Some(room) = ActiveCall::global(cx).read(cx).room() else {
 4501                return;
 4502            };
 4503            let room = room.read(cx);
 4504            let Some(remote_participant) = room.remote_participant_for_peer_id(peer_id) else {
 4505                return;
 4506            };
 4507
 4508            let project = self.project.read(cx);
 4509
 4510            let other_project_id = match remote_participant.location {
 4511                call::ParticipantLocation::External => None,
 4512                call::ParticipantLocation::UnsharedProject => None,
 4513                call::ParticipantLocation::SharedProject { project_id } => {
 4514                    if Some(project_id) == project.remote_id() {
 4515                        None
 4516                    } else {
 4517                        Some(project_id)
 4518                    }
 4519                }
 4520            };
 4521
 4522            // if they are active in another project, follow there.
 4523            if let Some(project_id) = other_project_id {
 4524                let app_state = self.app_state.clone();
 4525                crate::join_in_room_project(project_id, remote_participant.user.id, app_state, cx)
 4526                    .detach_and_log_err(cx);
 4527            }
 4528        }
 4529
 4530        // if you're already following, find the right pane and focus it.
 4531        if let Some(follower_state) = self.follower_states.get(&leader_id) {
 4532            window.focus(&follower_state.pane().focus_handle(cx));
 4533
 4534            return;
 4535        }
 4536
 4537        // Otherwise, follow.
 4538        if let Some(task) = self.start_following(leader_id, window, cx) {
 4539            task.detach_and_log_err(cx)
 4540        }
 4541    }
 4542
 4543    pub fn unfollow(
 4544        &mut self,
 4545        leader_id: impl Into<CollaboratorId>,
 4546        window: &mut Window,
 4547        cx: &mut Context<Self>,
 4548    ) -> Option<()> {
 4549        cx.notify();
 4550
 4551        let leader_id = leader_id.into();
 4552        let state = self.follower_states.remove(&leader_id)?;
 4553        for (_, item) in state.items_by_leader_view_id {
 4554            item.view.set_leader_id(None, window, cx);
 4555        }
 4556
 4557        if let CollaboratorId::PeerId(leader_peer_id) = leader_id {
 4558            let project_id = self.project.read(cx).remote_id();
 4559            let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4560            self.app_state
 4561                .client
 4562                .send(proto::Unfollow {
 4563                    room_id,
 4564                    project_id,
 4565                    leader_id: Some(leader_peer_id),
 4566                })
 4567                .log_err();
 4568        }
 4569
 4570        Some(())
 4571    }
 4572
 4573    pub fn is_being_followed(&self, id: impl Into<CollaboratorId>) -> bool {
 4574        self.follower_states.contains_key(&id.into())
 4575    }
 4576
 4577    fn active_item_path_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4578        cx.emit(Event::ActiveItemChanged);
 4579        let active_entry = self.active_project_path(cx);
 4580        self.project.update(cx, |project, cx| {
 4581            project.set_active_path(active_entry.clone(), cx)
 4582        });
 4583
 4584        if let Some(project_path) = &active_entry {
 4585            let git_store_entity = self.project.read(cx).git_store().clone();
 4586            git_store_entity.update(cx, |git_store, cx| {
 4587                git_store.set_active_repo_for_path(project_path, cx);
 4588            });
 4589        }
 4590
 4591        self.update_window_title(window, cx);
 4592    }
 4593
 4594    fn update_window_title(&mut self, window: &mut Window, cx: &mut App) {
 4595        let project = self.project().read(cx);
 4596        let mut title = String::new();
 4597
 4598        for (i, worktree) in project.visible_worktrees(cx).enumerate() {
 4599            let name = {
 4600                let settings_location = SettingsLocation {
 4601                    worktree_id: worktree.read(cx).id(),
 4602                    path: RelPath::empty(),
 4603                };
 4604
 4605                let settings = WorktreeSettings::get(Some(settings_location), cx);
 4606                match &settings.project_name {
 4607                    Some(name) => name.as_str(),
 4608                    None => worktree.read(cx).root_name_str(),
 4609                }
 4610            };
 4611            if i > 0 {
 4612                title.push_str(", ");
 4613            }
 4614            title.push_str(name);
 4615        }
 4616
 4617        if title.is_empty() {
 4618            title = "empty project".to_string();
 4619        }
 4620
 4621        if let Some(path) = self.active_item(cx).and_then(|item| item.project_path(cx)) {
 4622            let filename = path.path.file_name().or_else(|| {
 4623                Some(
 4624                    project
 4625                        .worktree_for_id(path.worktree_id, cx)?
 4626                        .read(cx)
 4627                        .root_name_str(),
 4628                )
 4629            });
 4630
 4631            if let Some(filename) = filename {
 4632                title.push_str("");
 4633                title.push_str(filename.as_ref());
 4634            }
 4635        }
 4636
 4637        if project.is_via_collab() {
 4638            title.push_str("");
 4639        } else if project.is_shared() {
 4640            title.push_str("");
 4641        }
 4642
 4643        if let Some(last_title) = self.last_window_title.as_ref()
 4644            && &title == last_title
 4645        {
 4646            return;
 4647        }
 4648        window.set_window_title(&title);
 4649        SystemWindowTabController::update_tab_title(
 4650            cx,
 4651            window.window_handle().window_id(),
 4652            SharedString::from(&title),
 4653        );
 4654        self.last_window_title = Some(title);
 4655    }
 4656
 4657    fn update_window_edited(&mut self, window: &mut Window, cx: &mut App) {
 4658        let is_edited = !self.project.read(cx).is_disconnected(cx) && !self.dirty_items.is_empty();
 4659        if is_edited != self.window_edited {
 4660            self.window_edited = is_edited;
 4661            window.set_window_edited(self.window_edited)
 4662        }
 4663    }
 4664
 4665    fn update_item_dirty_state(
 4666        &mut self,
 4667        item: &dyn ItemHandle,
 4668        window: &mut Window,
 4669        cx: &mut App,
 4670    ) {
 4671        let is_dirty = item.is_dirty(cx);
 4672        let item_id = item.item_id();
 4673        let was_dirty = self.dirty_items.contains_key(&item_id);
 4674        if is_dirty == was_dirty {
 4675            return;
 4676        }
 4677        if was_dirty {
 4678            self.dirty_items.remove(&item_id);
 4679            self.update_window_edited(window, cx);
 4680            return;
 4681        }
 4682        if let Some(window_handle) = window.window_handle().downcast::<Self>() {
 4683            let s = item.on_release(
 4684                cx,
 4685                Box::new(move |cx| {
 4686                    window_handle
 4687                        .update(cx, |this, window, cx| {
 4688                            this.dirty_items.remove(&item_id);
 4689                            this.update_window_edited(window, cx)
 4690                        })
 4691                        .ok();
 4692                }),
 4693            );
 4694            self.dirty_items.insert(item_id, s);
 4695            self.update_window_edited(window, cx);
 4696        }
 4697    }
 4698
 4699    fn render_notifications(&self, _window: &mut Window, _cx: &mut Context<Self>) -> Option<Div> {
 4700        if self.notifications.is_empty() {
 4701            None
 4702        } else {
 4703            Some(
 4704                div()
 4705                    .absolute()
 4706                    .right_3()
 4707                    .bottom_3()
 4708                    .w_112()
 4709                    .h_full()
 4710                    .flex()
 4711                    .flex_col()
 4712                    .justify_end()
 4713                    .gap_2()
 4714                    .children(
 4715                        self.notifications
 4716                            .iter()
 4717                            .map(|(_, notification)| notification.clone().into_any()),
 4718                    ),
 4719            )
 4720        }
 4721    }
 4722
 4723    // RPC handlers
 4724
 4725    fn active_view_for_follower(
 4726        &self,
 4727        follower_project_id: Option<u64>,
 4728        window: &mut Window,
 4729        cx: &mut Context<Self>,
 4730    ) -> Option<proto::View> {
 4731        let (item, panel_id) = self.active_item_for_followers(window, cx);
 4732        let item = item?;
 4733        let leader_id = self
 4734            .pane_for(&*item)
 4735            .and_then(|pane| self.leader_for_pane(&pane));
 4736        let leader_peer_id = match leader_id {
 4737            Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 4738            Some(CollaboratorId::Agent) | None => None,
 4739        };
 4740
 4741        let item_handle = item.to_followable_item_handle(cx)?;
 4742        let id = item_handle.remote_id(&self.app_state.client, window, cx)?;
 4743        let variant = item_handle.to_state_proto(window, cx)?;
 4744
 4745        if item_handle.is_project_item(window, cx)
 4746            && (follower_project_id.is_none()
 4747                || follower_project_id != self.project.read(cx).remote_id())
 4748        {
 4749            return None;
 4750        }
 4751
 4752        Some(proto::View {
 4753            id: id.to_proto(),
 4754            leader_id: leader_peer_id,
 4755            variant: Some(variant),
 4756            panel_id: panel_id.map(|id| id as i32),
 4757        })
 4758    }
 4759
 4760    fn handle_follow(
 4761        &mut self,
 4762        follower_project_id: Option<u64>,
 4763        window: &mut Window,
 4764        cx: &mut Context<Self>,
 4765    ) -> proto::FollowResponse {
 4766        let active_view = self.active_view_for_follower(follower_project_id, window, cx);
 4767
 4768        cx.notify();
 4769        proto::FollowResponse {
 4770            // TODO: Remove after version 0.145.x stabilizes.
 4771            active_view_id: active_view.as_ref().and_then(|view| view.id.clone()),
 4772            views: active_view.iter().cloned().collect(),
 4773            active_view,
 4774        }
 4775    }
 4776
 4777    fn handle_update_followers(
 4778        &mut self,
 4779        leader_id: PeerId,
 4780        message: proto::UpdateFollowers,
 4781        _window: &mut Window,
 4782        _cx: &mut Context<Self>,
 4783    ) {
 4784        self.leader_updates_tx
 4785            .unbounded_send((leader_id, message))
 4786            .ok();
 4787    }
 4788
 4789    async fn process_leader_update(
 4790        this: &WeakEntity<Self>,
 4791        leader_id: PeerId,
 4792        update: proto::UpdateFollowers,
 4793        cx: &mut AsyncWindowContext,
 4794    ) -> Result<()> {
 4795        match update.variant.context("invalid update")? {
 4796            proto::update_followers::Variant::CreateView(view) => {
 4797                let view_id = ViewId::from_proto(view.id.clone().context("invalid view id")?)?;
 4798                let should_add_view = this.update(cx, |this, _| {
 4799                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 4800                        anyhow::Ok(!state.items_by_leader_view_id.contains_key(&view_id))
 4801                    } else {
 4802                        anyhow::Ok(false)
 4803                    }
 4804                })??;
 4805
 4806                if should_add_view {
 4807                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 4808                }
 4809            }
 4810            proto::update_followers::Variant::UpdateActiveView(update_active_view) => {
 4811                let should_add_view = this.update(cx, |this, _| {
 4812                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 4813                        state.active_view_id = update_active_view
 4814                            .view
 4815                            .as_ref()
 4816                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4817
 4818                        if state.active_view_id.is_some_and(|view_id| {
 4819                            !state.items_by_leader_view_id.contains_key(&view_id)
 4820                        }) {
 4821                            anyhow::Ok(true)
 4822                        } else {
 4823                            anyhow::Ok(false)
 4824                        }
 4825                    } else {
 4826                        anyhow::Ok(false)
 4827                    }
 4828                })??;
 4829
 4830                if should_add_view && let Some(view) = update_active_view.view {
 4831                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 4832                }
 4833            }
 4834            proto::update_followers::Variant::UpdateView(update_view) => {
 4835                let variant = update_view.variant.context("missing update view variant")?;
 4836                let id = update_view.id.context("missing update view id")?;
 4837                let mut tasks = Vec::new();
 4838                this.update_in(cx, |this, window, cx| {
 4839                    let project = this.project.clone();
 4840                    if let Some(state) = this.follower_states.get(&leader_id.into()) {
 4841                        let view_id = ViewId::from_proto(id.clone())?;
 4842                        if let Some(item) = state.items_by_leader_view_id.get(&view_id) {
 4843                            tasks.push(item.view.apply_update_proto(
 4844                                &project,
 4845                                variant.clone(),
 4846                                window,
 4847                                cx,
 4848                            ));
 4849                        }
 4850                    }
 4851                    anyhow::Ok(())
 4852                })??;
 4853                try_join_all(tasks).await.log_err();
 4854            }
 4855        }
 4856        this.update_in(cx, |this, window, cx| {
 4857            this.leader_updated(leader_id, window, cx)
 4858        })?;
 4859        Ok(())
 4860    }
 4861
 4862    async fn add_view_from_leader(
 4863        this: WeakEntity<Self>,
 4864        leader_id: PeerId,
 4865        view: &proto::View,
 4866        cx: &mut AsyncWindowContext,
 4867    ) -> Result<()> {
 4868        let this = this.upgrade().context("workspace dropped")?;
 4869
 4870        let Some(id) = view.id.clone() else {
 4871            anyhow::bail!("no id for view");
 4872        };
 4873        let id = ViewId::from_proto(id)?;
 4874        let panel_id = view.panel_id.and_then(proto::PanelId::from_i32);
 4875
 4876        let pane = this.update(cx, |this, _cx| {
 4877            let state = this
 4878                .follower_states
 4879                .get(&leader_id.into())
 4880                .context("stopped following")?;
 4881            anyhow::Ok(state.pane().clone())
 4882        })??;
 4883        let existing_item = pane.update_in(cx, |pane, window, cx| {
 4884            let client = this.read(cx).client().clone();
 4885            pane.items().find_map(|item| {
 4886                let item = item.to_followable_item_handle(cx)?;
 4887                if item.remote_id(&client, window, cx) == Some(id) {
 4888                    Some(item)
 4889                } else {
 4890                    None
 4891                }
 4892            })
 4893        })?;
 4894        let item = if let Some(existing_item) = existing_item {
 4895            existing_item
 4896        } else {
 4897            let variant = view.variant.clone();
 4898            anyhow::ensure!(variant.is_some(), "missing view variant");
 4899
 4900            let task = cx.update(|window, cx| {
 4901                FollowableViewRegistry::from_state_proto(this.clone(), id, variant, window, cx)
 4902            })?;
 4903
 4904            let Some(task) = task else {
 4905                anyhow::bail!(
 4906                    "failed to construct view from leader (maybe from a different version of zed?)"
 4907                );
 4908            };
 4909
 4910            let mut new_item = task.await?;
 4911            pane.update_in(cx, |pane, window, cx| {
 4912                let mut item_to_remove = None;
 4913                for (ix, item) in pane.items().enumerate() {
 4914                    if let Some(item) = item.to_followable_item_handle(cx) {
 4915                        match new_item.dedup(item.as_ref(), window, cx) {
 4916                            Some(item::Dedup::KeepExisting) => {
 4917                                new_item =
 4918                                    item.boxed_clone().to_followable_item_handle(cx).unwrap();
 4919                                break;
 4920                            }
 4921                            Some(item::Dedup::ReplaceExisting) => {
 4922                                item_to_remove = Some((ix, item.item_id()));
 4923                                break;
 4924                            }
 4925                            None => {}
 4926                        }
 4927                    }
 4928                }
 4929
 4930                if let Some((ix, id)) = item_to_remove {
 4931                    pane.remove_item(id, false, false, window, cx);
 4932                    pane.add_item(new_item.boxed_clone(), false, false, Some(ix), window, cx);
 4933                }
 4934            })?;
 4935
 4936            new_item
 4937        };
 4938
 4939        this.update_in(cx, |this, window, cx| {
 4940            let state = this.follower_states.get_mut(&leader_id.into())?;
 4941            item.set_leader_id(Some(leader_id.into()), window, cx);
 4942            state.items_by_leader_view_id.insert(
 4943                id,
 4944                FollowerView {
 4945                    view: item,
 4946                    location: panel_id,
 4947                },
 4948            );
 4949
 4950            Some(())
 4951        })?;
 4952
 4953        Ok(())
 4954    }
 4955
 4956    fn handle_agent_location_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4957        let Some(follower_state) = self.follower_states.get_mut(&CollaboratorId::Agent) else {
 4958            return;
 4959        };
 4960
 4961        if let Some(agent_location) = self.project.read(cx).agent_location() {
 4962            let buffer_entity_id = agent_location.buffer.entity_id();
 4963            let view_id = ViewId {
 4964                creator: CollaboratorId::Agent,
 4965                id: buffer_entity_id.as_u64(),
 4966            };
 4967            follower_state.active_view_id = Some(view_id);
 4968
 4969            let item = match follower_state.items_by_leader_view_id.entry(view_id) {
 4970                hash_map::Entry::Occupied(entry) => Some(entry.into_mut()),
 4971                hash_map::Entry::Vacant(entry) => {
 4972                    let existing_view =
 4973                        follower_state
 4974                            .center_pane
 4975                            .read(cx)
 4976                            .items()
 4977                            .find_map(|item| {
 4978                                let item = item.to_followable_item_handle(cx)?;
 4979                                if item.buffer_kind(cx) == ItemBufferKind::Singleton
 4980                                    && item.project_item_model_ids(cx).as_slice()
 4981                                        == [buffer_entity_id]
 4982                                {
 4983                                    Some(item)
 4984                                } else {
 4985                                    None
 4986                                }
 4987                            });
 4988                    let view = existing_view.or_else(|| {
 4989                        agent_location.buffer.upgrade().and_then(|buffer| {
 4990                            cx.update_default_global(|registry: &mut ProjectItemRegistry, cx| {
 4991                                registry.build_item(buffer, self.project.clone(), None, window, cx)
 4992                            })?
 4993                            .to_followable_item_handle(cx)
 4994                        })
 4995                    });
 4996
 4997                    view.map(|view| {
 4998                        entry.insert(FollowerView {
 4999                            view,
 5000                            location: None,
 5001                        })
 5002                    })
 5003                }
 5004            };
 5005
 5006            if let Some(item) = item {
 5007                item.view
 5008                    .set_leader_id(Some(CollaboratorId::Agent), window, cx);
 5009                item.view
 5010                    .update_agent_location(agent_location.position, window, cx);
 5011            }
 5012        } else {
 5013            follower_state.active_view_id = None;
 5014        }
 5015
 5016        self.leader_updated(CollaboratorId::Agent, window, cx);
 5017    }
 5018
 5019    pub fn update_active_view_for_followers(&mut self, window: &mut Window, cx: &mut App) {
 5020        let mut is_project_item = true;
 5021        let mut update = proto::UpdateActiveView::default();
 5022        if window.is_window_active() {
 5023            let (active_item, panel_id) = self.active_item_for_followers(window, cx);
 5024
 5025            if let Some(item) = active_item
 5026                && item.item_focus_handle(cx).contains_focused(window, cx)
 5027            {
 5028                let leader_id = self
 5029                    .pane_for(&*item)
 5030                    .and_then(|pane| self.leader_for_pane(&pane));
 5031                let leader_peer_id = match leader_id {
 5032                    Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 5033                    Some(CollaboratorId::Agent) | None => None,
 5034                };
 5035
 5036                if let Some(item) = item.to_followable_item_handle(cx) {
 5037                    let id = item
 5038                        .remote_id(&self.app_state.client, window, cx)
 5039                        .map(|id| id.to_proto());
 5040
 5041                    if let Some(id) = id
 5042                        && let Some(variant) = item.to_state_proto(window, cx)
 5043                    {
 5044                        let view = Some(proto::View {
 5045                            id: id.clone(),
 5046                            leader_id: leader_peer_id,
 5047                            variant: Some(variant),
 5048                            panel_id: panel_id.map(|id| id as i32),
 5049                        });
 5050
 5051                        is_project_item = item.is_project_item(window, cx);
 5052                        update = proto::UpdateActiveView {
 5053                            view,
 5054                            // TODO: Remove after version 0.145.x stabilizes.
 5055                            id,
 5056                            leader_id: leader_peer_id,
 5057                        };
 5058                    };
 5059                }
 5060            }
 5061        }
 5062
 5063        let active_view_id = update.view.as_ref().and_then(|view| view.id.as_ref());
 5064        if active_view_id != self.last_active_view_id.as_ref() {
 5065            self.last_active_view_id = active_view_id.cloned();
 5066            self.update_followers(
 5067                is_project_item,
 5068                proto::update_followers::Variant::UpdateActiveView(update),
 5069                window,
 5070                cx,
 5071            );
 5072        }
 5073    }
 5074
 5075    fn active_item_for_followers(
 5076        &self,
 5077        window: &mut Window,
 5078        cx: &mut App,
 5079    ) -> (Option<Box<dyn ItemHandle>>, Option<proto::PanelId>) {
 5080        let mut active_item = None;
 5081        let mut panel_id = None;
 5082        for dock in self.all_docks() {
 5083            if dock.focus_handle(cx).contains_focused(window, cx)
 5084                && let Some(panel) = dock.read(cx).active_panel()
 5085                && let Some(pane) = panel.pane(cx)
 5086                && let Some(item) = pane.read(cx).active_item()
 5087            {
 5088                active_item = Some(item);
 5089                panel_id = panel.remote_id();
 5090                break;
 5091            }
 5092        }
 5093
 5094        if active_item.is_none() {
 5095            active_item = self.active_pane().read(cx).active_item();
 5096        }
 5097        (active_item, panel_id)
 5098    }
 5099
 5100    fn update_followers(
 5101        &self,
 5102        project_only: bool,
 5103        update: proto::update_followers::Variant,
 5104        _: &mut Window,
 5105        cx: &mut App,
 5106    ) -> Option<()> {
 5107        // If this update only applies to for followers in the current project,
 5108        // then skip it unless this project is shared. If it applies to all
 5109        // followers, regardless of project, then set `project_id` to none,
 5110        // indicating that it goes to all followers.
 5111        let project_id = if project_only {
 5112            Some(self.project.read(cx).remote_id()?)
 5113        } else {
 5114            None
 5115        };
 5116        self.app_state().workspace_store.update(cx, |store, cx| {
 5117            store.update_followers(project_id, update, cx)
 5118        })
 5119    }
 5120
 5121    pub fn leader_for_pane(&self, pane: &Entity<Pane>) -> Option<CollaboratorId> {
 5122        self.follower_states.iter().find_map(|(leader_id, state)| {
 5123            if state.center_pane == *pane || state.dock_pane.as_ref() == Some(pane) {
 5124                Some(*leader_id)
 5125            } else {
 5126                None
 5127            }
 5128        })
 5129    }
 5130
 5131    fn leader_updated(
 5132        &mut self,
 5133        leader_id: impl Into<CollaboratorId>,
 5134        window: &mut Window,
 5135        cx: &mut Context<Self>,
 5136    ) -> Option<Box<dyn ItemHandle>> {
 5137        cx.notify();
 5138
 5139        let leader_id = leader_id.into();
 5140        let (panel_id, item) = match leader_id {
 5141            CollaboratorId::PeerId(peer_id) => self.active_item_for_peer(peer_id, window, cx)?,
 5142            CollaboratorId::Agent => (None, self.active_item_for_agent()?),
 5143        };
 5144
 5145        let state = self.follower_states.get(&leader_id)?;
 5146        let mut transfer_focus = state.center_pane.read(cx).has_focus(window, cx);
 5147        let pane;
 5148        if let Some(panel_id) = panel_id {
 5149            pane = self
 5150                .activate_panel_for_proto_id(panel_id, window, cx)?
 5151                .pane(cx)?;
 5152            let state = self.follower_states.get_mut(&leader_id)?;
 5153            state.dock_pane = Some(pane.clone());
 5154        } else {
 5155            pane = state.center_pane.clone();
 5156            let state = self.follower_states.get_mut(&leader_id)?;
 5157            if let Some(dock_pane) = state.dock_pane.take() {
 5158                transfer_focus |= dock_pane.focus_handle(cx).contains_focused(window, cx);
 5159            }
 5160        }
 5161
 5162        pane.update(cx, |pane, cx| {
 5163            let focus_active_item = pane.has_focus(window, cx) || transfer_focus;
 5164            if let Some(index) = pane.index_for_item(item.as_ref()) {
 5165                pane.activate_item(index, false, false, window, cx);
 5166            } else {
 5167                pane.add_item(item.boxed_clone(), false, false, None, window, cx)
 5168            }
 5169
 5170            if focus_active_item {
 5171                pane.focus_active_item(window, cx)
 5172            }
 5173        });
 5174
 5175        Some(item)
 5176    }
 5177
 5178    fn active_item_for_agent(&self) -> Option<Box<dyn ItemHandle>> {
 5179        let state = self.follower_states.get(&CollaboratorId::Agent)?;
 5180        let active_view_id = state.active_view_id?;
 5181        Some(
 5182            state
 5183                .items_by_leader_view_id
 5184                .get(&active_view_id)?
 5185                .view
 5186                .boxed_clone(),
 5187        )
 5188    }
 5189
 5190    fn active_item_for_peer(
 5191        &self,
 5192        peer_id: PeerId,
 5193        window: &mut Window,
 5194        cx: &mut Context<Self>,
 5195    ) -> Option<(Option<PanelId>, Box<dyn ItemHandle>)> {
 5196        let call = self.active_call()?;
 5197        let room = call.read(cx).room()?.read(cx);
 5198        let participant = room.remote_participant_for_peer_id(peer_id)?;
 5199        let leader_in_this_app;
 5200        let leader_in_this_project;
 5201        match participant.location {
 5202            call::ParticipantLocation::SharedProject { project_id } => {
 5203                leader_in_this_app = true;
 5204                leader_in_this_project = Some(project_id) == self.project.read(cx).remote_id();
 5205            }
 5206            call::ParticipantLocation::UnsharedProject => {
 5207                leader_in_this_app = true;
 5208                leader_in_this_project = false;
 5209            }
 5210            call::ParticipantLocation::External => {
 5211                leader_in_this_app = false;
 5212                leader_in_this_project = false;
 5213            }
 5214        };
 5215        let state = self.follower_states.get(&peer_id.into())?;
 5216        let mut item_to_activate = None;
 5217        if let (Some(active_view_id), true) = (state.active_view_id, leader_in_this_app) {
 5218            if let Some(item) = state.items_by_leader_view_id.get(&active_view_id)
 5219                && (leader_in_this_project || !item.view.is_project_item(window, cx))
 5220            {
 5221                item_to_activate = Some((item.location, item.view.boxed_clone()));
 5222            }
 5223        } else if let Some(shared_screen) =
 5224            self.shared_screen_for_peer(peer_id, &state.center_pane, window, cx)
 5225        {
 5226            item_to_activate = Some((None, Box::new(shared_screen)));
 5227        }
 5228        item_to_activate
 5229    }
 5230
 5231    fn shared_screen_for_peer(
 5232        &self,
 5233        peer_id: PeerId,
 5234        pane: &Entity<Pane>,
 5235        window: &mut Window,
 5236        cx: &mut App,
 5237    ) -> Option<Entity<SharedScreen>> {
 5238        let call = self.active_call()?;
 5239        let room = call.read(cx).room()?.clone();
 5240        let participant = room.read(cx).remote_participant_for_peer_id(peer_id)?;
 5241        let track = participant.video_tracks.values().next()?.clone();
 5242        let user = participant.user.clone();
 5243
 5244        for item in pane.read(cx).items_of_type::<SharedScreen>() {
 5245            if item.read(cx).peer_id == peer_id {
 5246                return Some(item);
 5247            }
 5248        }
 5249
 5250        Some(cx.new(|cx| SharedScreen::new(track, peer_id, user.clone(), room.clone(), window, cx)))
 5251    }
 5252
 5253    pub fn on_window_activation_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5254        if window.is_window_active() {
 5255            self.update_active_view_for_followers(window, cx);
 5256
 5257            if let Some(database_id) = self.database_id {
 5258                cx.background_spawn(persistence::DB.update_timestamp(database_id))
 5259                    .detach();
 5260            }
 5261        } else {
 5262            for pane in &self.panes {
 5263                pane.update(cx, |pane, cx| {
 5264                    if let Some(item) = pane.active_item() {
 5265                        item.workspace_deactivated(window, cx);
 5266                    }
 5267                    for item in pane.items() {
 5268                        if matches!(
 5269                            item.workspace_settings(cx).autosave,
 5270                            AutosaveSetting::OnWindowChange | AutosaveSetting::OnFocusChange
 5271                        ) {
 5272                            Pane::autosave_item(item.as_ref(), self.project.clone(), window, cx)
 5273                                .detach_and_log_err(cx);
 5274                        }
 5275                    }
 5276                });
 5277            }
 5278        }
 5279    }
 5280
 5281    pub fn active_call(&self) -> Option<&Entity<ActiveCall>> {
 5282        self.active_call.as_ref().map(|(call, _)| call)
 5283    }
 5284
 5285    fn on_active_call_event(
 5286        &mut self,
 5287        _: &Entity<ActiveCall>,
 5288        event: &call::room::Event,
 5289        window: &mut Window,
 5290        cx: &mut Context<Self>,
 5291    ) {
 5292        match event {
 5293            call::room::Event::ParticipantLocationChanged { participant_id }
 5294            | call::room::Event::RemoteVideoTracksChanged { participant_id } => {
 5295                self.leader_updated(participant_id, window, cx);
 5296            }
 5297            _ => {}
 5298        }
 5299    }
 5300
 5301    pub fn database_id(&self) -> Option<WorkspaceId> {
 5302        self.database_id
 5303    }
 5304
 5305    pub fn session_id(&self) -> Option<String> {
 5306        self.session_id.clone()
 5307    }
 5308
 5309    pub fn root_paths(&self, cx: &App) -> Vec<Arc<Path>> {
 5310        let project = self.project().read(cx);
 5311        project
 5312            .visible_worktrees(cx)
 5313            .map(|worktree| worktree.read(cx).abs_path())
 5314            .collect::<Vec<_>>()
 5315    }
 5316
 5317    fn remove_panes(&mut self, member: Member, window: &mut Window, cx: &mut Context<Workspace>) {
 5318        match member {
 5319            Member::Axis(PaneAxis { members, .. }) => {
 5320                for child in members.iter() {
 5321                    self.remove_panes(child.clone(), window, cx)
 5322                }
 5323            }
 5324            Member::Pane(pane) => {
 5325                self.force_remove_pane(&pane, &None, window, cx);
 5326            }
 5327        }
 5328    }
 5329
 5330    fn remove_from_session(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 5331        self.session_id.take();
 5332        self.serialize_workspace_internal(window, cx)
 5333    }
 5334
 5335    fn force_remove_pane(
 5336        &mut self,
 5337        pane: &Entity<Pane>,
 5338        focus_on: &Option<Entity<Pane>>,
 5339        window: &mut Window,
 5340        cx: &mut Context<Workspace>,
 5341    ) {
 5342        self.panes.retain(|p| p != pane);
 5343        if let Some(focus_on) = focus_on {
 5344            focus_on.update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)));
 5345        } else if self.active_pane() == pane {
 5346            self.panes
 5347                .last()
 5348                .unwrap()
 5349                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)));
 5350        }
 5351        if self.last_active_center_pane == Some(pane.downgrade()) {
 5352            self.last_active_center_pane = None;
 5353        }
 5354        cx.notify();
 5355    }
 5356
 5357    fn serialize_workspace(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5358        if self._schedule_serialize_workspace.is_none() {
 5359            self._schedule_serialize_workspace =
 5360                Some(cx.spawn_in(window, async move |this, cx| {
 5361                    cx.background_executor()
 5362                        .timer(SERIALIZATION_THROTTLE_TIME)
 5363                        .await;
 5364                    this.update_in(cx, |this, window, cx| {
 5365                        this.serialize_workspace_internal(window, cx).detach();
 5366                        this._schedule_serialize_workspace.take();
 5367                    })
 5368                    .log_err();
 5369                }));
 5370        }
 5371    }
 5372
 5373    fn serialize_workspace_internal(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 5374        let Some(database_id) = self.database_id() else {
 5375            return Task::ready(());
 5376        };
 5377
 5378        fn serialize_pane_handle(
 5379            pane_handle: &Entity<Pane>,
 5380            window: &mut Window,
 5381            cx: &mut App,
 5382        ) -> SerializedPane {
 5383            let (items, active, pinned_count) = {
 5384                let pane = pane_handle.read(cx);
 5385                let active_item_id = pane.active_item().map(|item| item.item_id());
 5386                (
 5387                    pane.items()
 5388                        .filter_map(|handle| {
 5389                            let handle = handle.to_serializable_item_handle(cx)?;
 5390
 5391                            Some(SerializedItem {
 5392                                kind: Arc::from(handle.serialized_item_kind()),
 5393                                item_id: handle.item_id().as_u64(),
 5394                                active: Some(handle.item_id()) == active_item_id,
 5395                                preview: pane.is_active_preview_item(handle.item_id()),
 5396                            })
 5397                        })
 5398                        .collect::<Vec<_>>(),
 5399                    pane.has_focus(window, cx),
 5400                    pane.pinned_count(),
 5401                )
 5402            };
 5403
 5404            SerializedPane::new(items, active, pinned_count)
 5405        }
 5406
 5407        fn build_serialized_pane_group(
 5408            pane_group: &Member,
 5409            window: &mut Window,
 5410            cx: &mut App,
 5411        ) -> SerializedPaneGroup {
 5412            match pane_group {
 5413                Member::Axis(PaneAxis {
 5414                    axis,
 5415                    members,
 5416                    flexes,
 5417                    bounding_boxes: _,
 5418                }) => SerializedPaneGroup::Group {
 5419                    axis: SerializedAxis(*axis),
 5420                    children: members
 5421                        .iter()
 5422                        .map(|member| build_serialized_pane_group(member, window, cx))
 5423                        .collect::<Vec<_>>(),
 5424                    flexes: Some(flexes.lock().clone()),
 5425                },
 5426                Member::Pane(pane_handle) => {
 5427                    SerializedPaneGroup::Pane(serialize_pane_handle(pane_handle, window, cx))
 5428                }
 5429            }
 5430        }
 5431
 5432        fn build_serialized_docks(
 5433            this: &Workspace,
 5434            window: &mut Window,
 5435            cx: &mut App,
 5436        ) -> DockStructure {
 5437            let left_dock = this.left_dock.read(cx);
 5438            let left_visible = left_dock.is_open();
 5439            let left_active_panel = left_dock
 5440                .active_panel()
 5441                .map(|panel| panel.persistent_name().to_string());
 5442            let left_dock_zoom = left_dock
 5443                .active_panel()
 5444                .map(|panel| panel.is_zoomed(window, cx))
 5445                .unwrap_or(false);
 5446
 5447            let right_dock = this.right_dock.read(cx);
 5448            let right_visible = right_dock.is_open();
 5449            let right_active_panel = right_dock
 5450                .active_panel()
 5451                .map(|panel| panel.persistent_name().to_string());
 5452            let right_dock_zoom = right_dock
 5453                .active_panel()
 5454                .map(|panel| panel.is_zoomed(window, cx))
 5455                .unwrap_or(false);
 5456
 5457            let bottom_dock = this.bottom_dock.read(cx);
 5458            let bottom_visible = bottom_dock.is_open();
 5459            let bottom_active_panel = bottom_dock
 5460                .active_panel()
 5461                .map(|panel| panel.persistent_name().to_string());
 5462            let bottom_dock_zoom = bottom_dock
 5463                .active_panel()
 5464                .map(|panel| panel.is_zoomed(window, cx))
 5465                .unwrap_or(false);
 5466
 5467            DockStructure {
 5468                left: DockData {
 5469                    visible: left_visible,
 5470                    active_panel: left_active_panel,
 5471                    zoom: left_dock_zoom,
 5472                },
 5473                right: DockData {
 5474                    visible: right_visible,
 5475                    active_panel: right_active_panel,
 5476                    zoom: right_dock_zoom,
 5477                },
 5478                bottom: DockData {
 5479                    visible: bottom_visible,
 5480                    active_panel: bottom_active_panel,
 5481                    zoom: bottom_dock_zoom,
 5482                },
 5483            }
 5484        }
 5485
 5486        match self.serialize_workspace_location(cx) {
 5487            WorkspaceLocation::Location(location, paths) => {
 5488                let breakpoints = self.project.update(cx, |project, cx| {
 5489                    project
 5490                        .breakpoint_store()
 5491                        .read(cx)
 5492                        .all_source_breakpoints(cx)
 5493                });
 5494                let user_toolchains = self
 5495                    .project
 5496                    .read(cx)
 5497                    .user_toolchains(cx)
 5498                    .unwrap_or_default();
 5499
 5500                let center_group = build_serialized_pane_group(&self.center.root, window, cx);
 5501                let docks = build_serialized_docks(self, window, cx);
 5502                let window_bounds = Some(SerializedWindowBounds(window.window_bounds()));
 5503
 5504                let serialized_workspace = SerializedWorkspace {
 5505                    id: database_id,
 5506                    location,
 5507                    paths,
 5508                    center_group,
 5509                    window_bounds,
 5510                    display: Default::default(),
 5511                    docks,
 5512                    centered_layout: self.centered_layout,
 5513                    session_id: self.session_id.clone(),
 5514                    breakpoints,
 5515                    window_id: Some(window.window_handle().window_id().as_u64()),
 5516                    user_toolchains,
 5517                };
 5518
 5519                window.spawn(cx, async move |_| {
 5520                    persistence::DB.save_workspace(serialized_workspace).await;
 5521                })
 5522            }
 5523            WorkspaceLocation::DetachFromSession => window.spawn(cx, async move |_| {
 5524                persistence::DB
 5525                    .set_session_id(database_id, None)
 5526                    .await
 5527                    .log_err();
 5528            }),
 5529            WorkspaceLocation::None => Task::ready(()),
 5530        }
 5531    }
 5532
 5533    fn serialize_workspace_location(&self, cx: &App) -> WorkspaceLocation {
 5534        let paths = PathList::new(&self.root_paths(cx));
 5535        if let Some(connection) = self.project.read(cx).remote_connection_options(cx) {
 5536            WorkspaceLocation::Location(SerializedWorkspaceLocation::Remote(connection), paths)
 5537        } else if self.project.read(cx).is_local() {
 5538            if !paths.is_empty() {
 5539                WorkspaceLocation::Location(SerializedWorkspaceLocation::Local, paths)
 5540            } else {
 5541                WorkspaceLocation::DetachFromSession
 5542            }
 5543        } else {
 5544            WorkspaceLocation::None
 5545        }
 5546    }
 5547
 5548    fn update_history(&self, cx: &mut App) {
 5549        let Some(id) = self.database_id() else {
 5550            return;
 5551        };
 5552        if !self.project.read(cx).is_local() {
 5553            return;
 5554        }
 5555        if let Some(manager) = HistoryManager::global(cx) {
 5556            let paths = PathList::new(&self.root_paths(cx));
 5557            manager.update(cx, |this, cx| {
 5558                this.update_history(id, HistoryManagerEntry::new(id, &paths), cx);
 5559            });
 5560        }
 5561    }
 5562
 5563    async fn serialize_items(
 5564        this: &WeakEntity<Self>,
 5565        items_rx: UnboundedReceiver<Box<dyn SerializableItemHandle>>,
 5566        cx: &mut AsyncWindowContext,
 5567    ) -> Result<()> {
 5568        const CHUNK_SIZE: usize = 200;
 5569
 5570        let mut serializable_items = items_rx.ready_chunks(CHUNK_SIZE);
 5571
 5572        while let Some(items_received) = serializable_items.next().await {
 5573            let unique_items =
 5574                items_received
 5575                    .into_iter()
 5576                    .fold(HashMap::default(), |mut acc, item| {
 5577                        acc.entry(item.item_id()).or_insert(item);
 5578                        acc
 5579                    });
 5580
 5581            // We use into_iter() here so that the references to the items are moved into
 5582            // the tasks and not kept alive while we're sleeping.
 5583            for (_, item) in unique_items.into_iter() {
 5584                if let Ok(Some(task)) = this.update_in(cx, |workspace, window, cx| {
 5585                    item.serialize(workspace, false, window, cx)
 5586                }) {
 5587                    cx.background_spawn(async move { task.await.log_err() })
 5588                        .detach();
 5589                }
 5590            }
 5591
 5592            cx.background_executor()
 5593                .timer(SERIALIZATION_THROTTLE_TIME)
 5594                .await;
 5595        }
 5596
 5597        Ok(())
 5598    }
 5599
 5600    pub(crate) fn enqueue_item_serialization(
 5601        &mut self,
 5602        item: Box<dyn SerializableItemHandle>,
 5603    ) -> Result<()> {
 5604        self.serializable_items_tx
 5605            .unbounded_send(item)
 5606            .map_err(|err| anyhow!("failed to send serializable item over channel: {err}"))
 5607    }
 5608
 5609    pub(crate) fn load_workspace(
 5610        serialized_workspace: SerializedWorkspace,
 5611        paths_to_open: Vec<Option<ProjectPath>>,
 5612        window: &mut Window,
 5613        cx: &mut Context<Workspace>,
 5614    ) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 5615        cx.spawn_in(window, async move |workspace, cx| {
 5616            let project = workspace.read_with(cx, |workspace, _| workspace.project().clone())?;
 5617
 5618            let mut center_group = None;
 5619            let mut center_items = None;
 5620
 5621            // Traverse the splits tree and add to things
 5622            if let Some((group, active_pane, items)) = serialized_workspace
 5623                .center_group
 5624                .deserialize(&project, serialized_workspace.id, workspace.clone(), cx)
 5625                .await
 5626            {
 5627                center_items = Some(items);
 5628                center_group = Some((group, active_pane))
 5629            }
 5630
 5631            let mut items_by_project_path = HashMap::default();
 5632            let mut item_ids_by_kind = HashMap::default();
 5633            let mut all_deserialized_items = Vec::default();
 5634            cx.update(|_, cx| {
 5635                for item in center_items.unwrap_or_default().into_iter().flatten() {
 5636                    if let Some(serializable_item_handle) = item.to_serializable_item_handle(cx) {
 5637                        item_ids_by_kind
 5638                            .entry(serializable_item_handle.serialized_item_kind())
 5639                            .or_insert(Vec::new())
 5640                            .push(item.item_id().as_u64() as ItemId);
 5641                    }
 5642
 5643                    if let Some(project_path) = item.project_path(cx) {
 5644                        items_by_project_path.insert(project_path, item.clone());
 5645                    }
 5646                    all_deserialized_items.push(item);
 5647                }
 5648            })?;
 5649
 5650            let opened_items = paths_to_open
 5651                .into_iter()
 5652                .map(|path_to_open| {
 5653                    path_to_open
 5654                        .and_then(|path_to_open| items_by_project_path.remove(&path_to_open))
 5655                })
 5656                .collect::<Vec<_>>();
 5657
 5658            // Remove old panes from workspace panes list
 5659            workspace.update_in(cx, |workspace, window, cx| {
 5660                if let Some((center_group, active_pane)) = center_group {
 5661                    workspace.remove_panes(workspace.center.root.clone(), window, cx);
 5662
 5663                    // Swap workspace center group
 5664                    workspace.center = PaneGroup::with_root(center_group);
 5665                    if let Some(active_pane) = active_pane {
 5666                        workspace.set_active_pane(&active_pane, window, cx);
 5667                        cx.focus_self(window);
 5668                    } else {
 5669                        workspace.set_active_pane(&workspace.center.first_pane(), window, cx);
 5670                    }
 5671                }
 5672
 5673                let docks = serialized_workspace.docks;
 5674
 5675                for (dock, serialized_dock) in [
 5676                    (&mut workspace.right_dock, docks.right),
 5677                    (&mut workspace.left_dock, docks.left),
 5678                    (&mut workspace.bottom_dock, docks.bottom),
 5679                ]
 5680                .iter_mut()
 5681                {
 5682                    dock.update(cx, |dock, cx| {
 5683                        dock.serialized_dock = Some(serialized_dock.clone());
 5684                        dock.restore_state(window, cx);
 5685                    });
 5686                }
 5687
 5688                cx.notify();
 5689            })?;
 5690
 5691            let _ = project
 5692                .update(cx, |project, cx| {
 5693                    project
 5694                        .breakpoint_store()
 5695                        .update(cx, |breakpoint_store, cx| {
 5696                            breakpoint_store
 5697                                .with_serialized_breakpoints(serialized_workspace.breakpoints, cx)
 5698                        })
 5699                })?
 5700                .await;
 5701
 5702            // Clean up all the items that have _not_ been loaded. Our ItemIds aren't stable. That means
 5703            // after loading the items, we might have different items and in order to avoid
 5704            // the database filling up, we delete items that haven't been loaded now.
 5705            //
 5706            // The items that have been loaded, have been saved after they've been added to the workspace.
 5707            let clean_up_tasks = workspace.update_in(cx, |_, window, cx| {
 5708                item_ids_by_kind
 5709                    .into_iter()
 5710                    .map(|(item_kind, loaded_items)| {
 5711                        SerializableItemRegistry::cleanup(
 5712                            item_kind,
 5713                            serialized_workspace.id,
 5714                            loaded_items,
 5715                            window,
 5716                            cx,
 5717                        )
 5718                        .log_err()
 5719                    })
 5720                    .collect::<Vec<_>>()
 5721            })?;
 5722
 5723            futures::future::join_all(clean_up_tasks).await;
 5724
 5725            workspace
 5726                .update_in(cx, |workspace, window, cx| {
 5727                    // Serialize ourself to make sure our timestamps and any pane / item changes are replicated
 5728                    workspace.serialize_workspace_internal(window, cx).detach();
 5729
 5730                    // Ensure that we mark the window as edited if we did load dirty items
 5731                    workspace.update_window_edited(window, cx);
 5732                })
 5733                .ok();
 5734
 5735            Ok(opened_items)
 5736        })
 5737    }
 5738
 5739    fn actions(&self, div: Div, window: &mut Window, cx: &mut Context<Self>) -> Div {
 5740        self.add_workspace_actions_listeners(div, window, cx)
 5741            .on_action(cx.listener(
 5742                |_workspace, action_sequence: &settings::ActionSequence, window, cx| {
 5743                    for action in &action_sequence.0 {
 5744                        window.dispatch_action(action.boxed_clone(), cx);
 5745                    }
 5746                },
 5747            ))
 5748            .on_action(cx.listener(Self::close_inactive_items_and_panes))
 5749            .on_action(cx.listener(Self::close_all_items_and_panes))
 5750            .on_action(cx.listener(Self::save_all))
 5751            .on_action(cx.listener(Self::send_keystrokes))
 5752            .on_action(cx.listener(Self::add_folder_to_project))
 5753            .on_action(cx.listener(Self::follow_next_collaborator))
 5754            .on_action(cx.listener(Self::close_window))
 5755            .on_action(cx.listener(Self::activate_pane_at_index))
 5756            .on_action(cx.listener(Self::move_item_to_pane_at_index))
 5757            .on_action(cx.listener(Self::move_focused_panel_to_next_position))
 5758            .on_action(cx.listener(Self::toggle_edit_predictions_all_files))
 5759            .on_action(cx.listener(|workspace, _: &Unfollow, window, cx| {
 5760                let pane = workspace.active_pane().clone();
 5761                workspace.unfollow_in_pane(&pane, window, cx);
 5762            }))
 5763            .on_action(cx.listener(|workspace, action: &Save, window, cx| {
 5764                workspace
 5765                    .save_active_item(action.save_intent.unwrap_or(SaveIntent::Save), window, cx)
 5766                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5767            }))
 5768            .on_action(cx.listener(|workspace, _: &SaveWithoutFormat, window, cx| {
 5769                workspace
 5770                    .save_active_item(SaveIntent::SaveWithoutFormat, window, cx)
 5771                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5772            }))
 5773            .on_action(cx.listener(|workspace, _: &SaveAs, window, cx| {
 5774                workspace
 5775                    .save_active_item(SaveIntent::SaveAs, window, cx)
 5776                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5777            }))
 5778            .on_action(
 5779                cx.listener(|workspace, _: &ActivatePreviousPane, window, cx| {
 5780                    workspace.activate_previous_pane(window, cx)
 5781                }),
 5782            )
 5783            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 5784                workspace.activate_next_pane(window, cx)
 5785            }))
 5786            .on_action(
 5787                cx.listener(|workspace, _: &ActivateNextWindow, _window, cx| {
 5788                    workspace.activate_next_window(cx)
 5789                }),
 5790            )
 5791            .on_action(
 5792                cx.listener(|workspace, _: &ActivatePreviousWindow, _window, cx| {
 5793                    workspace.activate_previous_window(cx)
 5794                }),
 5795            )
 5796            .on_action(cx.listener(|workspace, _: &ActivatePaneLeft, window, cx| {
 5797                workspace.activate_pane_in_direction(SplitDirection::Left, window, cx)
 5798            }))
 5799            .on_action(cx.listener(|workspace, _: &ActivatePaneRight, window, cx| {
 5800                workspace.activate_pane_in_direction(SplitDirection::Right, window, cx)
 5801            }))
 5802            .on_action(cx.listener(|workspace, _: &ActivatePaneUp, window, cx| {
 5803                workspace.activate_pane_in_direction(SplitDirection::Up, window, cx)
 5804            }))
 5805            .on_action(cx.listener(|workspace, _: &ActivatePaneDown, window, cx| {
 5806                workspace.activate_pane_in_direction(SplitDirection::Down, window, cx)
 5807            }))
 5808            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 5809                workspace.activate_next_pane(window, cx)
 5810            }))
 5811            .on_action(cx.listener(
 5812                |workspace, action: &MoveItemToPaneInDirection, window, cx| {
 5813                    workspace.move_item_to_pane_in_direction(action, window, cx)
 5814                },
 5815            ))
 5816            .on_action(cx.listener(|workspace, _: &SwapPaneLeft, _, cx| {
 5817                workspace.swap_pane_in_direction(SplitDirection::Left, cx)
 5818            }))
 5819            .on_action(cx.listener(|workspace, _: &SwapPaneRight, _, cx| {
 5820                workspace.swap_pane_in_direction(SplitDirection::Right, cx)
 5821            }))
 5822            .on_action(cx.listener(|workspace, _: &SwapPaneUp, _, cx| {
 5823                workspace.swap_pane_in_direction(SplitDirection::Up, cx)
 5824            }))
 5825            .on_action(cx.listener(|workspace, _: &SwapPaneDown, _, cx| {
 5826                workspace.swap_pane_in_direction(SplitDirection::Down, cx)
 5827            }))
 5828            .on_action(cx.listener(|workspace, _: &MovePaneLeft, _, cx| {
 5829                workspace.move_pane_to_border(SplitDirection::Left, cx)
 5830            }))
 5831            .on_action(cx.listener(|workspace, _: &MovePaneRight, _, cx| {
 5832                workspace.move_pane_to_border(SplitDirection::Right, cx)
 5833            }))
 5834            .on_action(cx.listener(|workspace, _: &MovePaneUp, _, cx| {
 5835                workspace.move_pane_to_border(SplitDirection::Up, cx)
 5836            }))
 5837            .on_action(cx.listener(|workspace, _: &MovePaneDown, _, cx| {
 5838                workspace.move_pane_to_border(SplitDirection::Down, cx)
 5839            }))
 5840            .on_action(cx.listener(|this, _: &ToggleLeftDock, window, cx| {
 5841                this.toggle_dock(DockPosition::Left, window, cx);
 5842            }))
 5843            .on_action(cx.listener(
 5844                |workspace: &mut Workspace, _: &ToggleRightDock, window, cx| {
 5845                    workspace.toggle_dock(DockPosition::Right, window, cx);
 5846                },
 5847            ))
 5848            .on_action(cx.listener(
 5849                |workspace: &mut Workspace, _: &ToggleBottomDock, window, cx| {
 5850                    workspace.toggle_dock(DockPosition::Bottom, window, cx);
 5851                },
 5852            ))
 5853            .on_action(cx.listener(
 5854                |workspace: &mut Workspace, _: &CloseActiveDock, window, cx| {
 5855                    if !workspace.close_active_dock(window, cx) {
 5856                        cx.propagate();
 5857                    }
 5858                },
 5859            ))
 5860            .on_action(
 5861                cx.listener(|workspace: &mut Workspace, _: &CloseAllDocks, window, cx| {
 5862                    workspace.close_all_docks(window, cx);
 5863                }),
 5864            )
 5865            .on_action(cx.listener(Self::toggle_all_docks))
 5866            .on_action(cx.listener(
 5867                |workspace: &mut Workspace, _: &ClearAllNotifications, _, cx| {
 5868                    workspace.clear_all_notifications(cx);
 5869                },
 5870            ))
 5871            .on_action(cx.listener(
 5872                |workspace: &mut Workspace, _: &SuppressNotification, _, cx| {
 5873                    if let Some((notification_id, _)) = workspace.notifications.pop() {
 5874                        workspace.suppress_notification(&notification_id, cx);
 5875                    }
 5876                },
 5877            ))
 5878            .on_action(cx.listener(
 5879                |workspace: &mut Workspace, _: &ReopenClosedItem, window, cx| {
 5880                    workspace.reopen_closed_item(window, cx).detach();
 5881                },
 5882            ))
 5883            .on_action(cx.listener(
 5884                |workspace: &mut Workspace, _: &ResetActiveDockSize, window, cx| {
 5885                    for dock in workspace.all_docks() {
 5886                        if dock.focus_handle(cx).contains_focused(window, cx) {
 5887                            let Some(panel) = dock.read(cx).active_panel() else {
 5888                                return;
 5889                            };
 5890
 5891                            // Set to `None`, then the size will fall back to the default.
 5892                            panel.clone().set_size(None, window, cx);
 5893
 5894                            return;
 5895                        }
 5896                    }
 5897                },
 5898            ))
 5899            .on_action(cx.listener(
 5900                |workspace: &mut Workspace, _: &ResetOpenDocksSize, window, cx| {
 5901                    for dock in workspace.all_docks() {
 5902                        if let Some(panel) = dock.read(cx).visible_panel() {
 5903                            // Set to `None`, then the size will fall back to the default.
 5904                            panel.clone().set_size(None, window, cx);
 5905                        }
 5906                    }
 5907                },
 5908            ))
 5909            .on_action(cx.listener(
 5910                |workspace: &mut Workspace, act: &IncreaseActiveDockSize, window, cx| {
 5911                    adjust_active_dock_size_by_px(
 5912                        px_with_ui_font_fallback(act.px, cx),
 5913                        workspace,
 5914                        window,
 5915                        cx,
 5916                    );
 5917                },
 5918            ))
 5919            .on_action(cx.listener(
 5920                |workspace: &mut Workspace, act: &DecreaseActiveDockSize, window, cx| {
 5921                    adjust_active_dock_size_by_px(
 5922                        px_with_ui_font_fallback(act.px, cx) * -1.,
 5923                        workspace,
 5924                        window,
 5925                        cx,
 5926                    );
 5927                },
 5928            ))
 5929            .on_action(cx.listener(
 5930                |workspace: &mut Workspace, act: &IncreaseOpenDocksSize, window, cx| {
 5931                    adjust_open_docks_size_by_px(
 5932                        px_with_ui_font_fallback(act.px, cx),
 5933                        workspace,
 5934                        window,
 5935                        cx,
 5936                    );
 5937                },
 5938            ))
 5939            .on_action(cx.listener(
 5940                |workspace: &mut Workspace, act: &DecreaseOpenDocksSize, window, cx| {
 5941                    adjust_open_docks_size_by_px(
 5942                        px_with_ui_font_fallback(act.px, cx) * -1.,
 5943                        workspace,
 5944                        window,
 5945                        cx,
 5946                    );
 5947                },
 5948            ))
 5949            .on_action(cx.listener(Workspace::toggle_centered_layout))
 5950            .on_action(cx.listener(Workspace::cancel))
 5951    }
 5952
 5953    #[cfg(any(test, feature = "test-support"))]
 5954    pub fn test_new(project: Entity<Project>, window: &mut Window, cx: &mut Context<Self>) -> Self {
 5955        use node_runtime::NodeRuntime;
 5956        use session::Session;
 5957
 5958        let client = project.read(cx).client();
 5959        let user_store = project.read(cx).user_store();
 5960        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 5961        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 5962        window.activate_window();
 5963        let app_state = Arc::new(AppState {
 5964            languages: project.read(cx).languages().clone(),
 5965            workspace_store,
 5966            client,
 5967            user_store,
 5968            fs: project.read(cx).fs().clone(),
 5969            build_window_options: |_, _| Default::default(),
 5970            node_runtime: NodeRuntime::unavailable(),
 5971            session,
 5972        });
 5973        let workspace = Self::new(Default::default(), project, app_state, window, cx);
 5974        workspace
 5975            .active_pane
 5976            .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)));
 5977        workspace
 5978    }
 5979
 5980    pub fn register_action<A: Action>(
 5981        &mut self,
 5982        callback: impl Fn(&mut Self, &A, &mut Window, &mut Context<Self>) + 'static,
 5983    ) -> &mut Self {
 5984        let callback = Arc::new(callback);
 5985
 5986        self.workspace_actions.push(Box::new(move |div, _, _, cx| {
 5987            let callback = callback.clone();
 5988            div.on_action(cx.listener(move |workspace, event, window, cx| {
 5989                (callback)(workspace, event, window, cx)
 5990            }))
 5991        }));
 5992        self
 5993    }
 5994    pub fn register_action_renderer(
 5995        &mut self,
 5996        callback: impl Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div + 'static,
 5997    ) -> &mut Self {
 5998        self.workspace_actions.push(Box::new(callback));
 5999        self
 6000    }
 6001
 6002    fn add_workspace_actions_listeners(
 6003        &self,
 6004        mut div: Div,
 6005        window: &mut Window,
 6006        cx: &mut Context<Self>,
 6007    ) -> Div {
 6008        for action in self.workspace_actions.iter() {
 6009            div = (action)(div, self, window, cx)
 6010        }
 6011        div
 6012    }
 6013
 6014    pub fn has_active_modal(&self, _: &mut Window, cx: &mut App) -> bool {
 6015        self.modal_layer.read(cx).has_active_modal()
 6016    }
 6017
 6018    pub fn active_modal<V: ManagedView + 'static>(&self, cx: &App) -> Option<Entity<V>> {
 6019        self.modal_layer.read(cx).active_modal()
 6020    }
 6021
 6022    pub fn toggle_modal<V: ModalView, B>(&mut self, window: &mut Window, cx: &mut App, build: B)
 6023    where
 6024        B: FnOnce(&mut Window, &mut Context<V>) -> V,
 6025    {
 6026        self.modal_layer.update(cx, |modal_layer, cx| {
 6027            modal_layer.toggle_modal(window, cx, build)
 6028        })
 6029    }
 6030
 6031    pub fn hide_modal(&mut self, window: &mut Window, cx: &mut App) -> bool {
 6032        self.modal_layer
 6033            .update(cx, |modal_layer, cx| modal_layer.hide_modal(window, cx))
 6034    }
 6035
 6036    pub fn toggle_status_toast<V: ToastView>(&mut self, entity: Entity<V>, cx: &mut App) {
 6037        self.toast_layer
 6038            .update(cx, |toast_layer, cx| toast_layer.toggle_toast(cx, entity))
 6039    }
 6040
 6041    pub fn toggle_centered_layout(
 6042        &mut self,
 6043        _: &ToggleCenteredLayout,
 6044        _: &mut Window,
 6045        cx: &mut Context<Self>,
 6046    ) {
 6047        self.centered_layout = !self.centered_layout;
 6048        if let Some(database_id) = self.database_id() {
 6049            cx.background_spawn(DB.set_centered_layout(database_id, self.centered_layout))
 6050                .detach_and_log_err(cx);
 6051        }
 6052        cx.notify();
 6053    }
 6054
 6055    fn adjust_padding(padding: Option<f32>) -> f32 {
 6056        padding
 6057            .unwrap_or(CenteredPaddingSettings::default().0)
 6058            .clamp(
 6059                CenteredPaddingSettings::MIN_PADDING,
 6060                CenteredPaddingSettings::MAX_PADDING,
 6061            )
 6062    }
 6063
 6064    fn render_dock(
 6065        &self,
 6066        position: DockPosition,
 6067        dock: &Entity<Dock>,
 6068        window: &mut Window,
 6069        cx: &mut App,
 6070    ) -> Option<Div> {
 6071        if self.zoomed_position == Some(position) {
 6072            return None;
 6073        }
 6074
 6075        let leader_border = dock.read(cx).active_panel().and_then(|panel| {
 6076            let pane = panel.pane(cx)?;
 6077            let follower_states = &self.follower_states;
 6078            leader_border_for_pane(follower_states, &pane, window, cx)
 6079        });
 6080
 6081        Some(
 6082            div()
 6083                .flex()
 6084                .flex_none()
 6085                .overflow_hidden()
 6086                .child(dock.clone())
 6087                .children(leader_border),
 6088        )
 6089    }
 6090
 6091    pub fn for_window(window: &mut Window, _: &mut App) -> Option<Entity<Workspace>> {
 6092        window.root().flatten()
 6093    }
 6094
 6095    pub fn zoomed_item(&self) -> Option<&AnyWeakView> {
 6096        self.zoomed.as_ref()
 6097    }
 6098
 6099    pub fn activate_next_window(&mut self, cx: &mut Context<Self>) {
 6100        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 6101            return;
 6102        };
 6103        let windows = cx.windows();
 6104        let next_window =
 6105            SystemWindowTabController::get_next_tab_group_window(cx, current_window_id).or_else(
 6106                || {
 6107                    windows
 6108                        .iter()
 6109                        .cycle()
 6110                        .skip_while(|window| window.window_id() != current_window_id)
 6111                        .nth(1)
 6112                },
 6113            );
 6114
 6115        if let Some(window) = next_window {
 6116            window
 6117                .update(cx, |_, window, _| window.activate_window())
 6118                .ok();
 6119        }
 6120    }
 6121
 6122    pub fn activate_previous_window(&mut self, cx: &mut Context<Self>) {
 6123        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 6124            return;
 6125        };
 6126        let windows = cx.windows();
 6127        let prev_window =
 6128            SystemWindowTabController::get_prev_tab_group_window(cx, current_window_id).or_else(
 6129                || {
 6130                    windows
 6131                        .iter()
 6132                        .rev()
 6133                        .cycle()
 6134                        .skip_while(|window| window.window_id() != current_window_id)
 6135                        .nth(1)
 6136                },
 6137            );
 6138
 6139        if let Some(window) = prev_window {
 6140            window
 6141                .update(cx, |_, window, _| window.activate_window())
 6142                .ok();
 6143        }
 6144    }
 6145
 6146    pub fn cancel(&mut self, _: &menu::Cancel, window: &mut Window, cx: &mut Context<Self>) {
 6147        if cx.stop_active_drag(window) {
 6148        } else if let Some((notification_id, _)) = self.notifications.pop() {
 6149            dismiss_app_notification(&notification_id, cx);
 6150        } else {
 6151            cx.propagate();
 6152        }
 6153    }
 6154
 6155    fn adjust_dock_size_by_px(
 6156        &mut self,
 6157        panel_size: Pixels,
 6158        dock_pos: DockPosition,
 6159        px: Pixels,
 6160        window: &mut Window,
 6161        cx: &mut Context<Self>,
 6162    ) {
 6163        match dock_pos {
 6164            DockPosition::Left => self.resize_left_dock(panel_size + px, window, cx),
 6165            DockPosition::Right => self.resize_right_dock(panel_size + px, window, cx),
 6166            DockPosition::Bottom => self.resize_bottom_dock(panel_size + px, window, cx),
 6167        }
 6168    }
 6169
 6170    fn resize_left_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6171        let size = new_size.min(self.bounds.right() - RESIZE_HANDLE_SIZE);
 6172
 6173        self.left_dock.update(cx, |left_dock, cx| {
 6174            if WorkspaceSettings::get_global(cx)
 6175                .resize_all_panels_in_dock
 6176                .contains(&DockPosition::Left)
 6177            {
 6178                left_dock.resize_all_panels(Some(size), window, cx);
 6179            } else {
 6180                left_dock.resize_active_panel(Some(size), window, cx);
 6181            }
 6182        });
 6183    }
 6184
 6185    fn resize_right_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6186        let mut size = new_size.max(self.bounds.left() - RESIZE_HANDLE_SIZE);
 6187        self.left_dock.read_with(cx, |left_dock, cx| {
 6188            let left_dock_size = left_dock
 6189                .active_panel_size(window, cx)
 6190                .unwrap_or(Pixels::ZERO);
 6191            if left_dock_size + size > self.bounds.right() {
 6192                size = self.bounds.right() - left_dock_size
 6193            }
 6194        });
 6195        self.right_dock.update(cx, |right_dock, cx| {
 6196            if WorkspaceSettings::get_global(cx)
 6197                .resize_all_panels_in_dock
 6198                .contains(&DockPosition::Right)
 6199            {
 6200                right_dock.resize_all_panels(Some(size), window, cx);
 6201            } else {
 6202                right_dock.resize_active_panel(Some(size), window, cx);
 6203            }
 6204        });
 6205    }
 6206
 6207    fn resize_bottom_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6208        let size = new_size.min(self.bounds.bottom() - RESIZE_HANDLE_SIZE - self.bounds.top());
 6209        self.bottom_dock.update(cx, |bottom_dock, cx| {
 6210            if WorkspaceSettings::get_global(cx)
 6211                .resize_all_panels_in_dock
 6212                .contains(&DockPosition::Bottom)
 6213            {
 6214                bottom_dock.resize_all_panels(Some(size), window, cx);
 6215            } else {
 6216                bottom_dock.resize_active_panel(Some(size), window, cx);
 6217            }
 6218        });
 6219    }
 6220
 6221    fn toggle_edit_predictions_all_files(
 6222        &mut self,
 6223        _: &ToggleEditPrediction,
 6224        _window: &mut Window,
 6225        cx: &mut Context<Self>,
 6226    ) {
 6227        let fs = self.project().read(cx).fs().clone();
 6228        let show_edit_predictions = all_language_settings(None, cx).show_edit_predictions(None, cx);
 6229        update_settings_file(fs, cx, move |file, _| {
 6230            file.project.all_languages.defaults.show_edit_predictions = Some(!show_edit_predictions)
 6231        });
 6232    }
 6233}
 6234
 6235fn leader_border_for_pane(
 6236    follower_states: &HashMap<CollaboratorId, FollowerState>,
 6237    pane: &Entity<Pane>,
 6238    _: &Window,
 6239    cx: &App,
 6240) -> Option<Div> {
 6241    let (leader_id, _follower_state) = follower_states.iter().find_map(|(leader_id, state)| {
 6242        if state.pane() == pane {
 6243            Some((*leader_id, state))
 6244        } else {
 6245            None
 6246        }
 6247    })?;
 6248
 6249    let mut leader_color = match leader_id {
 6250        CollaboratorId::PeerId(leader_peer_id) => {
 6251            let room = ActiveCall::try_global(cx)?.read(cx).room()?.read(cx);
 6252            let leader = room.remote_participant_for_peer_id(leader_peer_id)?;
 6253
 6254            cx.theme()
 6255                .players()
 6256                .color_for_participant(leader.participant_index.0)
 6257                .cursor
 6258        }
 6259        CollaboratorId::Agent => cx.theme().players().agent().cursor,
 6260    };
 6261    leader_color.fade_out(0.3);
 6262    Some(
 6263        div()
 6264            .absolute()
 6265            .size_full()
 6266            .left_0()
 6267            .top_0()
 6268            .border_2()
 6269            .border_color(leader_color),
 6270    )
 6271}
 6272
 6273fn window_bounds_env_override() -> Option<Bounds<Pixels>> {
 6274    ZED_WINDOW_POSITION
 6275        .zip(*ZED_WINDOW_SIZE)
 6276        .map(|(position, size)| Bounds {
 6277            origin: position,
 6278            size,
 6279        })
 6280}
 6281
 6282fn open_items(
 6283    serialized_workspace: Option<SerializedWorkspace>,
 6284    mut project_paths_to_open: Vec<(PathBuf, Option<ProjectPath>)>,
 6285    window: &mut Window,
 6286    cx: &mut Context<Workspace>,
 6287) -> impl 'static + Future<Output = Result<Vec<Option<Result<Box<dyn ItemHandle>>>>>> + use<> {
 6288    let restored_items = serialized_workspace.map(|serialized_workspace| {
 6289        Workspace::load_workspace(
 6290            serialized_workspace,
 6291            project_paths_to_open
 6292                .iter()
 6293                .map(|(_, project_path)| project_path)
 6294                .cloned()
 6295                .collect(),
 6296            window,
 6297            cx,
 6298        )
 6299    });
 6300
 6301    cx.spawn_in(window, async move |workspace, cx| {
 6302        let mut opened_items = Vec::with_capacity(project_paths_to_open.len());
 6303
 6304        if let Some(restored_items) = restored_items {
 6305            let restored_items = restored_items.await?;
 6306
 6307            let restored_project_paths = restored_items
 6308                .iter()
 6309                .filter_map(|item| {
 6310                    cx.update(|_, cx| item.as_ref()?.project_path(cx))
 6311                        .ok()
 6312                        .flatten()
 6313                })
 6314                .collect::<HashSet<_>>();
 6315
 6316            for restored_item in restored_items {
 6317                opened_items.push(restored_item.map(Ok));
 6318            }
 6319
 6320            project_paths_to_open
 6321                .iter_mut()
 6322                .for_each(|(_, project_path)| {
 6323                    if let Some(project_path_to_open) = project_path
 6324                        && restored_project_paths.contains(project_path_to_open)
 6325                    {
 6326                        *project_path = None;
 6327                    }
 6328                });
 6329        } else {
 6330            for _ in 0..project_paths_to_open.len() {
 6331                opened_items.push(None);
 6332            }
 6333        }
 6334        assert!(opened_items.len() == project_paths_to_open.len());
 6335
 6336        let tasks =
 6337            project_paths_to_open
 6338                .into_iter()
 6339                .enumerate()
 6340                .map(|(ix, (abs_path, project_path))| {
 6341                    let workspace = workspace.clone();
 6342                    cx.spawn(async move |cx| {
 6343                        let file_project_path = project_path?;
 6344                        let abs_path_task = workspace.update(cx, |workspace, cx| {
 6345                            workspace.project().update(cx, |project, cx| {
 6346                                project.resolve_abs_path(abs_path.to_string_lossy().as_ref(), cx)
 6347                            })
 6348                        });
 6349
 6350                        // We only want to open file paths here. If one of the items
 6351                        // here is a directory, it was already opened further above
 6352                        // with a `find_or_create_worktree`.
 6353                        if let Ok(task) = abs_path_task
 6354                            && task.await.is_none_or(|p| p.is_file())
 6355                        {
 6356                            return Some((
 6357                                ix,
 6358                                workspace
 6359                                    .update_in(cx, |workspace, window, cx| {
 6360                                        workspace.open_path(
 6361                                            file_project_path,
 6362                                            None,
 6363                                            true,
 6364                                            window,
 6365                                            cx,
 6366                                        )
 6367                                    })
 6368                                    .log_err()?
 6369                                    .await,
 6370                            ));
 6371                        }
 6372                        None
 6373                    })
 6374                });
 6375
 6376        let tasks = tasks.collect::<Vec<_>>();
 6377
 6378        let tasks = futures::future::join_all(tasks);
 6379        for (ix, path_open_result) in tasks.await.into_iter().flatten() {
 6380            opened_items[ix] = Some(path_open_result);
 6381        }
 6382
 6383        Ok(opened_items)
 6384    })
 6385}
 6386
 6387enum ActivateInDirectionTarget {
 6388    Pane(Entity<Pane>),
 6389    Dock(Entity<Dock>),
 6390}
 6391
 6392fn notify_if_database_failed(workspace: WindowHandle<Workspace>, cx: &mut AsyncApp) {
 6393    workspace
 6394        .update(cx, |workspace, _, cx| {
 6395            if (*db::ALL_FILE_DB_FAILED).load(std::sync::atomic::Ordering::Acquire) {
 6396                struct DatabaseFailedNotification;
 6397
 6398                workspace.show_notification(
 6399                    NotificationId::unique::<DatabaseFailedNotification>(),
 6400                    cx,
 6401                    |cx| {
 6402                        cx.new(|cx| {
 6403                            MessageNotification::new("Failed to load the database file.", cx)
 6404                                .primary_message("File an Issue")
 6405                                .primary_icon(IconName::Plus)
 6406                                .primary_on_click(|window, cx| {
 6407                                    window.dispatch_action(Box::new(FileBugReport), cx)
 6408                                })
 6409                        })
 6410                    },
 6411                );
 6412            }
 6413        })
 6414        .log_err();
 6415}
 6416
 6417fn px_with_ui_font_fallback(val: u32, cx: &Context<Workspace>) -> Pixels {
 6418    if val == 0 {
 6419        ThemeSettings::get_global(cx).ui_font_size(cx)
 6420    } else {
 6421        px(val as f32)
 6422    }
 6423}
 6424
 6425fn adjust_active_dock_size_by_px(
 6426    px: Pixels,
 6427    workspace: &mut Workspace,
 6428    window: &mut Window,
 6429    cx: &mut Context<Workspace>,
 6430) {
 6431    let Some(active_dock) = workspace
 6432        .all_docks()
 6433        .into_iter()
 6434        .find(|dock| dock.focus_handle(cx).contains_focused(window, cx))
 6435    else {
 6436        return;
 6437    };
 6438    let dock = active_dock.read(cx);
 6439    let Some(panel_size) = dock.active_panel_size(window, cx) else {
 6440        return;
 6441    };
 6442    let dock_pos = dock.position();
 6443    workspace.adjust_dock_size_by_px(panel_size, dock_pos, px, window, cx);
 6444}
 6445
 6446fn adjust_open_docks_size_by_px(
 6447    px: Pixels,
 6448    workspace: &mut Workspace,
 6449    window: &mut Window,
 6450    cx: &mut Context<Workspace>,
 6451) {
 6452    let docks = workspace
 6453        .all_docks()
 6454        .into_iter()
 6455        .filter_map(|dock| {
 6456            if dock.read(cx).is_open() {
 6457                let dock = dock.read(cx);
 6458                let panel_size = dock.active_panel_size(window, cx)?;
 6459                let dock_pos = dock.position();
 6460                Some((panel_size, dock_pos, px))
 6461            } else {
 6462                None
 6463            }
 6464        })
 6465        .collect::<Vec<_>>();
 6466
 6467    docks
 6468        .into_iter()
 6469        .for_each(|(panel_size, dock_pos, offset)| {
 6470            workspace.adjust_dock_size_by_px(panel_size, dock_pos, offset, window, cx);
 6471        });
 6472}
 6473
 6474impl Focusable for Workspace {
 6475    fn focus_handle(&self, cx: &App) -> FocusHandle {
 6476        self.active_pane.focus_handle(cx)
 6477    }
 6478}
 6479
 6480#[derive(Clone)]
 6481struct DraggedDock(DockPosition);
 6482
 6483impl Render for DraggedDock {
 6484    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
 6485        gpui::Empty
 6486    }
 6487}
 6488
 6489impl Render for Workspace {
 6490    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
 6491        static FIRST_PAINT: AtomicBool = AtomicBool::new(true);
 6492        if FIRST_PAINT.swap(false, std::sync::atomic::Ordering::Relaxed) {
 6493            log::info!("Rendered first frame");
 6494        }
 6495        let mut context = KeyContext::new_with_defaults();
 6496        context.add("Workspace");
 6497        context.set("keyboard_layout", cx.keyboard_layout().name().to_string());
 6498        if let Some(status) = self
 6499            .debugger_provider
 6500            .as_ref()
 6501            .and_then(|provider| provider.active_thread_state(cx))
 6502        {
 6503            match status {
 6504                ThreadStatus::Running | ThreadStatus::Stepping => {
 6505                    context.add("debugger_running");
 6506                }
 6507                ThreadStatus::Stopped => context.add("debugger_stopped"),
 6508                ThreadStatus::Exited | ThreadStatus::Ended => {}
 6509            }
 6510        }
 6511
 6512        if self.left_dock.read(cx).is_open() {
 6513            if let Some(active_panel) = self.left_dock.read(cx).active_panel() {
 6514                context.set("left_dock", active_panel.panel_key());
 6515            }
 6516        }
 6517
 6518        if self.right_dock.read(cx).is_open() {
 6519            if let Some(active_panel) = self.right_dock.read(cx).active_panel() {
 6520                context.set("right_dock", active_panel.panel_key());
 6521            }
 6522        }
 6523
 6524        if self.bottom_dock.read(cx).is_open() {
 6525            if let Some(active_panel) = self.bottom_dock.read(cx).active_panel() {
 6526                context.set("bottom_dock", active_panel.panel_key());
 6527            }
 6528        }
 6529
 6530        let centered_layout = self.centered_layout
 6531            && self.center.panes().len() == 1
 6532            && self.active_item(cx).is_some();
 6533        let render_padding = |size| {
 6534            (size > 0.0).then(|| {
 6535                div()
 6536                    .h_full()
 6537                    .w(relative(size))
 6538                    .bg(cx.theme().colors().editor_background)
 6539                    .border_color(cx.theme().colors().pane_group_border)
 6540            })
 6541        };
 6542        let paddings = if centered_layout {
 6543            let settings = WorkspaceSettings::get_global(cx).centered_layout;
 6544            (
 6545                render_padding(Self::adjust_padding(
 6546                    settings.left_padding.map(|padding| padding.0),
 6547                )),
 6548                render_padding(Self::adjust_padding(
 6549                    settings.right_padding.map(|padding| padding.0),
 6550                )),
 6551            )
 6552        } else {
 6553            (None, None)
 6554        };
 6555        let ui_font = theme::setup_ui_font(window, cx);
 6556
 6557        let theme = cx.theme().clone();
 6558        let colors = theme.colors();
 6559        let notification_entities = self
 6560            .notifications
 6561            .iter()
 6562            .map(|(_, notification)| notification.entity_id())
 6563            .collect::<Vec<_>>();
 6564        let bottom_dock_layout = WorkspaceSettings::get_global(cx).bottom_dock_layout;
 6565
 6566        client_side_decorations(
 6567            self.actions(div(), window, cx)
 6568                .key_context(context)
 6569                .relative()
 6570                .size_full()
 6571                .flex()
 6572                .flex_col()
 6573                .font(ui_font)
 6574                .gap_0()
 6575                .justify_start()
 6576                .items_start()
 6577                .text_color(colors.text)
 6578                .overflow_hidden()
 6579                .children(self.titlebar_item.clone())
 6580                .on_modifiers_changed(move |_, _, cx| {
 6581                    for &id in &notification_entities {
 6582                        cx.notify(id);
 6583                    }
 6584                })
 6585                .child(
 6586                    div()
 6587                        .size_full()
 6588                        .relative()
 6589                        .flex_1()
 6590                        .flex()
 6591                        .flex_col()
 6592                        .child(
 6593                            div()
 6594                                .id("workspace")
 6595                                .bg(colors.background)
 6596                                .relative()
 6597                                .flex_1()
 6598                                .w_full()
 6599                                .flex()
 6600                                .flex_col()
 6601                                .overflow_hidden()
 6602                                .border_t_1()
 6603                                .border_b_1()
 6604                                .border_color(colors.border)
 6605                                .child({
 6606                                    let this = cx.entity();
 6607                                    canvas(
 6608                                        move |bounds, window, cx| {
 6609                                            this.update(cx, |this, cx| {
 6610                                                let bounds_changed = this.bounds != bounds;
 6611                                                this.bounds = bounds;
 6612
 6613                                                if bounds_changed {
 6614                                                    this.left_dock.update(cx, |dock, cx| {
 6615                                                        dock.clamp_panel_size(
 6616                                                            bounds.size.width,
 6617                                                            window,
 6618                                                            cx,
 6619                                                        )
 6620                                                    });
 6621
 6622                                                    this.right_dock.update(cx, |dock, cx| {
 6623                                                        dock.clamp_panel_size(
 6624                                                            bounds.size.width,
 6625                                                            window,
 6626                                                            cx,
 6627                                                        )
 6628                                                    });
 6629
 6630                                                    this.bottom_dock.update(cx, |dock, cx| {
 6631                                                        dock.clamp_panel_size(
 6632                                                            bounds.size.height,
 6633                                                            window,
 6634                                                            cx,
 6635                                                        )
 6636                                                    });
 6637                                                }
 6638                                            })
 6639                                        },
 6640                                        |_, _, _, _| {},
 6641                                    )
 6642                                    .absolute()
 6643                                    .size_full()
 6644                                })
 6645                                .when(self.zoomed.is_none(), |this| {
 6646                                    this.on_drag_move(cx.listener(
 6647                                        move |workspace,
 6648                                              e: &DragMoveEvent<DraggedDock>,
 6649                                              window,
 6650                                              cx| {
 6651                                            if workspace.previous_dock_drag_coordinates
 6652                                                != Some(e.event.position)
 6653                                            {
 6654                                                workspace.previous_dock_drag_coordinates =
 6655                                                    Some(e.event.position);
 6656                                                match e.drag(cx).0 {
 6657                                                    DockPosition::Left => {
 6658                                                        workspace.resize_left_dock(
 6659                                                            e.event.position.x
 6660                                                                - workspace.bounds.left(),
 6661                                                            window,
 6662                                                            cx,
 6663                                                        );
 6664                                                    }
 6665                                                    DockPosition::Right => {
 6666                                                        workspace.resize_right_dock(
 6667                                                            workspace.bounds.right()
 6668                                                                - e.event.position.x,
 6669                                                            window,
 6670                                                            cx,
 6671                                                        );
 6672                                                    }
 6673                                                    DockPosition::Bottom => {
 6674                                                        workspace.resize_bottom_dock(
 6675                                                            workspace.bounds.bottom()
 6676                                                                - e.event.position.y,
 6677                                                            window,
 6678                                                            cx,
 6679                                                        );
 6680                                                    }
 6681                                                };
 6682                                                workspace.serialize_workspace(window, cx);
 6683                                            }
 6684                                        },
 6685                                    ))
 6686                                })
 6687                                .child({
 6688                                    match bottom_dock_layout {
 6689                                        BottomDockLayout::Full => div()
 6690                                            .flex()
 6691                                            .flex_col()
 6692                                            .h_full()
 6693                                            .child(
 6694                                                div()
 6695                                                    .flex()
 6696                                                    .flex_row()
 6697                                                    .flex_1()
 6698                                                    .overflow_hidden()
 6699                                                    .children(self.render_dock(
 6700                                                        DockPosition::Left,
 6701                                                        &self.left_dock,
 6702                                                        window,
 6703                                                        cx,
 6704                                                    ))
 6705                                                    .child(
 6706                                                        div()
 6707                                                            .flex()
 6708                                                            .flex_col()
 6709                                                            .flex_1()
 6710                                                            .overflow_hidden()
 6711                                                            .child(
 6712                                                                h_flex()
 6713                                                                    .flex_1()
 6714                                                                    .when_some(
 6715                                                                        paddings.0,
 6716                                                                        |this, p| {
 6717                                                                            this.child(
 6718                                                                                p.border_r_1(),
 6719                                                                            )
 6720                                                                        },
 6721                                                                    )
 6722                                                                    .child(self.center.render(
 6723                                                                        self.zoomed.as_ref(),
 6724                                                                        &PaneRenderContext {
 6725                                                                            follower_states:
 6726                                                                                &self.follower_states,
 6727                                                                            active_call: self.active_call(),
 6728                                                                            active_pane: &self.active_pane,
 6729                                                                            app_state: &self.app_state,
 6730                                                                            project: &self.project,
 6731                                                                            workspace: &self.weak_self,
 6732                                                                        },
 6733                                                                        window,
 6734                                                                        cx,
 6735                                                                    ))
 6736                                                                    .when_some(
 6737                                                                        paddings.1,
 6738                                                                        |this, p| {
 6739                                                                            this.child(
 6740                                                                                p.border_l_1(),
 6741                                                                            )
 6742                                                                        },
 6743                                                                    ),
 6744                                                            ),
 6745                                                    )
 6746                                                    .children(self.render_dock(
 6747                                                        DockPosition::Right,
 6748                                                        &self.right_dock,
 6749                                                        window,
 6750                                                        cx,
 6751                                                    )),
 6752                                            )
 6753                                            .child(div().w_full().children(self.render_dock(
 6754                                                DockPosition::Bottom,
 6755                                                &self.bottom_dock,
 6756                                                window,
 6757                                                cx
 6758                                            ))),
 6759
 6760                                        BottomDockLayout::LeftAligned => div()
 6761                                            .flex()
 6762                                            .flex_row()
 6763                                            .h_full()
 6764                                            .child(
 6765                                                div()
 6766                                                    .flex()
 6767                                                    .flex_col()
 6768                                                    .flex_1()
 6769                                                    .h_full()
 6770                                                    .child(
 6771                                                        div()
 6772                                                            .flex()
 6773                                                            .flex_row()
 6774                                                            .flex_1()
 6775                                                            .children(self.render_dock(DockPosition::Left, &self.left_dock, window, cx))
 6776                                                            .child(
 6777                                                                div()
 6778                                                                    .flex()
 6779                                                                    .flex_col()
 6780                                                                    .flex_1()
 6781                                                                    .overflow_hidden()
 6782                                                                    .child(
 6783                                                                        h_flex()
 6784                                                                            .flex_1()
 6785                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 6786                                                                            .child(self.center.render(
 6787                                                                                self.zoomed.as_ref(),
 6788                                                                                &PaneRenderContext {
 6789                                                                                    follower_states:
 6790                                                                                        &self.follower_states,
 6791                                                                                    active_call: self.active_call(),
 6792                                                                                    active_pane: &self.active_pane,
 6793                                                                                    app_state: &self.app_state,
 6794                                                                                    project: &self.project,
 6795                                                                                    workspace: &self.weak_self,
 6796                                                                                },
 6797                                                                                window,
 6798                                                                                cx,
 6799                                                                            ))
 6800                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 6801                                                                    )
 6802                                                            )
 6803                                                    )
 6804                                                    .child(
 6805                                                        div()
 6806                                                            .w_full()
 6807                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 6808                                                    ),
 6809                                            )
 6810                                            .children(self.render_dock(
 6811                                                DockPosition::Right,
 6812                                                &self.right_dock,
 6813                                                window,
 6814                                                cx,
 6815                                            )),
 6816
 6817                                        BottomDockLayout::RightAligned => div()
 6818                                            .flex()
 6819                                            .flex_row()
 6820                                            .h_full()
 6821                                            .children(self.render_dock(
 6822                                                DockPosition::Left,
 6823                                                &self.left_dock,
 6824                                                window,
 6825                                                cx,
 6826                                            ))
 6827                                            .child(
 6828                                                div()
 6829                                                    .flex()
 6830                                                    .flex_col()
 6831                                                    .flex_1()
 6832                                                    .h_full()
 6833                                                    .child(
 6834                                                        div()
 6835                                                            .flex()
 6836                                                            .flex_row()
 6837                                                            .flex_1()
 6838                                                            .child(
 6839                                                                div()
 6840                                                                    .flex()
 6841                                                                    .flex_col()
 6842                                                                    .flex_1()
 6843                                                                    .overflow_hidden()
 6844                                                                    .child(
 6845                                                                        h_flex()
 6846                                                                            .flex_1()
 6847                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 6848                                                                            .child(self.center.render(
 6849                                                                                self.zoomed.as_ref(),
 6850                                                                                &PaneRenderContext {
 6851                                                                                    follower_states:
 6852                                                                                        &self.follower_states,
 6853                                                                                    active_call: self.active_call(),
 6854                                                                                    active_pane: &self.active_pane,
 6855                                                                                    app_state: &self.app_state,
 6856                                                                                    project: &self.project,
 6857                                                                                    workspace: &self.weak_self,
 6858                                                                                },
 6859                                                                                window,
 6860                                                                                cx,
 6861                                                                            ))
 6862                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 6863                                                                    )
 6864                                                            )
 6865                                                            .children(self.render_dock(DockPosition::Right, &self.right_dock, window, cx))
 6866                                                    )
 6867                                                    .child(
 6868                                                        div()
 6869                                                            .w_full()
 6870                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 6871                                                    ),
 6872                                            ),
 6873
 6874                                        BottomDockLayout::Contained => div()
 6875                                            .flex()
 6876                                            .flex_row()
 6877                                            .h_full()
 6878                                            .children(self.render_dock(
 6879                                                DockPosition::Left,
 6880                                                &self.left_dock,
 6881                                                window,
 6882                                                cx,
 6883                                            ))
 6884                                            .child(
 6885                                                div()
 6886                                                    .flex()
 6887                                                    .flex_col()
 6888                                                    .flex_1()
 6889                                                    .overflow_hidden()
 6890                                                    .child(
 6891                                                        h_flex()
 6892                                                            .flex_1()
 6893                                                            .when_some(paddings.0, |this, p| {
 6894                                                                this.child(p.border_r_1())
 6895                                                            })
 6896                                                            .child(self.center.render(
 6897                                                                self.zoomed.as_ref(),
 6898                                                                &PaneRenderContext {
 6899                                                                    follower_states:
 6900                                                                        &self.follower_states,
 6901                                                                    active_call: self.active_call(),
 6902                                                                    active_pane: &self.active_pane,
 6903                                                                    app_state: &self.app_state,
 6904                                                                    project: &self.project,
 6905                                                                    workspace: &self.weak_self,
 6906                                                                },
 6907                                                                window,
 6908                                                                cx,
 6909                                                            ))
 6910                                                            .when_some(paddings.1, |this, p| {
 6911                                                                this.child(p.border_l_1())
 6912                                                            }),
 6913                                                    )
 6914                                                    .children(self.render_dock(
 6915                                                        DockPosition::Bottom,
 6916                                                        &self.bottom_dock,
 6917                                                        window,
 6918                                                        cx,
 6919                                                    )),
 6920                                            )
 6921                                            .children(self.render_dock(
 6922                                                DockPosition::Right,
 6923                                                &self.right_dock,
 6924                                                window,
 6925                                                cx,
 6926                                            )),
 6927                                    }
 6928                                })
 6929                                .children(self.zoomed.as_ref().and_then(|view| {
 6930                                    let zoomed_view = view.upgrade()?;
 6931                                    let div = div()
 6932                                        .occlude()
 6933                                        .absolute()
 6934                                        .overflow_hidden()
 6935                                        .border_color(colors.border)
 6936                                        .bg(colors.background)
 6937                                        .child(zoomed_view)
 6938                                        .inset_0()
 6939                                        .shadow_lg();
 6940
 6941                                    if !WorkspaceSettings::get_global(cx).zoomed_padding {
 6942                                       return Some(div);
 6943                                    }
 6944
 6945                                    Some(match self.zoomed_position {
 6946                                        Some(DockPosition::Left) => div.right_2().border_r_1(),
 6947                                        Some(DockPosition::Right) => div.left_2().border_l_1(),
 6948                                        Some(DockPosition::Bottom) => div.top_2().border_t_1(),
 6949                                        None => {
 6950                                            div.top_2().bottom_2().left_2().right_2().border_1()
 6951                                        }
 6952                                    })
 6953                                }))
 6954                                .children(self.render_notifications(window, cx)),
 6955                        )
 6956                        .when(self.status_bar_visible(cx), |parent| {
 6957                            parent.child(self.status_bar.clone())
 6958                        })
 6959                        .child(self.modal_layer.clone())
 6960                        .child(self.toast_layer.clone()),
 6961                ),
 6962            window,
 6963            cx,
 6964        )
 6965    }
 6966}
 6967
 6968impl WorkspaceStore {
 6969    pub fn new(client: Arc<Client>, cx: &mut Context<Self>) -> Self {
 6970        Self {
 6971            workspaces: Default::default(),
 6972            _subscriptions: vec![
 6973                client.add_request_handler(cx.weak_entity(), Self::handle_follow),
 6974                client.add_message_handler(cx.weak_entity(), Self::handle_update_followers),
 6975            ],
 6976            client,
 6977        }
 6978    }
 6979
 6980    pub fn update_followers(
 6981        &self,
 6982        project_id: Option<u64>,
 6983        update: proto::update_followers::Variant,
 6984        cx: &App,
 6985    ) -> Option<()> {
 6986        let active_call = ActiveCall::try_global(cx)?;
 6987        let room_id = active_call.read(cx).room()?.read(cx).id();
 6988        self.client
 6989            .send(proto::UpdateFollowers {
 6990                room_id,
 6991                project_id,
 6992                variant: Some(update),
 6993            })
 6994            .log_err()
 6995    }
 6996
 6997    pub async fn handle_follow(
 6998        this: Entity<Self>,
 6999        envelope: TypedEnvelope<proto::Follow>,
 7000        mut cx: AsyncApp,
 7001    ) -> Result<proto::FollowResponse> {
 7002        this.update(&mut cx, |this, cx| {
 7003            let follower = Follower {
 7004                project_id: envelope.payload.project_id,
 7005                peer_id: envelope.original_sender_id()?,
 7006            };
 7007
 7008            let mut response = proto::FollowResponse::default();
 7009            this.workspaces.retain(|workspace| {
 7010                workspace
 7011                    .update(cx, |workspace, window, cx| {
 7012                        let handler_response =
 7013                            workspace.handle_follow(follower.project_id, window, cx);
 7014                        if let Some(active_view) = handler_response.active_view
 7015                            && workspace.project.read(cx).remote_id() == follower.project_id
 7016                        {
 7017                            response.active_view = Some(active_view)
 7018                        }
 7019                    })
 7020                    .is_ok()
 7021            });
 7022
 7023            Ok(response)
 7024        })?
 7025    }
 7026
 7027    async fn handle_update_followers(
 7028        this: Entity<Self>,
 7029        envelope: TypedEnvelope<proto::UpdateFollowers>,
 7030        mut cx: AsyncApp,
 7031    ) -> Result<()> {
 7032        let leader_id = envelope.original_sender_id()?;
 7033        let update = envelope.payload;
 7034
 7035        this.update(&mut cx, |this, cx| {
 7036            this.workspaces.retain(|workspace| {
 7037                workspace
 7038                    .update(cx, |workspace, window, cx| {
 7039                        let project_id = workspace.project.read(cx).remote_id();
 7040                        if update.project_id != project_id && update.project_id.is_some() {
 7041                            return;
 7042                        }
 7043                        workspace.handle_update_followers(leader_id, update.clone(), window, cx);
 7044                    })
 7045                    .is_ok()
 7046            });
 7047            Ok(())
 7048        })?
 7049    }
 7050
 7051    pub fn workspaces(&self) -> &HashSet<WindowHandle<Workspace>> {
 7052        &self.workspaces
 7053    }
 7054}
 7055
 7056impl ViewId {
 7057    pub(crate) fn from_proto(message: proto::ViewId) -> Result<Self> {
 7058        Ok(Self {
 7059            creator: message
 7060                .creator
 7061                .map(CollaboratorId::PeerId)
 7062                .context("creator is missing")?,
 7063            id: message.id,
 7064        })
 7065    }
 7066
 7067    pub(crate) fn to_proto(self) -> Option<proto::ViewId> {
 7068        if let CollaboratorId::PeerId(peer_id) = self.creator {
 7069            Some(proto::ViewId {
 7070                creator: Some(peer_id),
 7071                id: self.id,
 7072            })
 7073        } else {
 7074            None
 7075        }
 7076    }
 7077}
 7078
 7079impl FollowerState {
 7080    fn pane(&self) -> &Entity<Pane> {
 7081        self.dock_pane.as_ref().unwrap_or(&self.center_pane)
 7082    }
 7083}
 7084
 7085pub trait WorkspaceHandle {
 7086    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath>;
 7087}
 7088
 7089impl WorkspaceHandle for Entity<Workspace> {
 7090    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath> {
 7091        self.read(cx)
 7092            .worktrees(cx)
 7093            .flat_map(|worktree| {
 7094                let worktree_id = worktree.read(cx).id();
 7095                worktree.read(cx).files(true, 0).map(move |f| ProjectPath {
 7096                    worktree_id,
 7097                    path: f.path.clone(),
 7098                })
 7099            })
 7100            .collect::<Vec<_>>()
 7101    }
 7102}
 7103
 7104pub async fn last_opened_workspace_location() -> Option<(SerializedWorkspaceLocation, PathList)> {
 7105    DB.last_workspace().await.log_err().flatten()
 7106}
 7107
 7108pub fn last_session_workspace_locations(
 7109    last_session_id: &str,
 7110    last_session_window_stack: Option<Vec<WindowId>>,
 7111) -> Option<Vec<(SerializedWorkspaceLocation, PathList)>> {
 7112    DB.last_session_workspace_locations(last_session_id, last_session_window_stack)
 7113        .log_err()
 7114}
 7115
 7116actions!(
 7117    collab,
 7118    [
 7119        /// Opens the channel notes for the current call.
 7120        ///
 7121        /// Use `collab_panel::OpenSelectedChannelNotes` to open the channel notes for the selected
 7122        /// channel in the collab panel.
 7123        ///
 7124        /// If you want to open a specific channel, use `zed::OpenZedUrl` with a channel notes URL -
 7125        /// can be copied via "Copy link to section" in the context menu of the channel notes
 7126        /// buffer. These URLs look like `https://zed.dev/channel/channel-name-CHANNEL_ID/notes`.
 7127        OpenChannelNotes,
 7128        /// Mutes your microphone.
 7129        Mute,
 7130        /// Deafens yourself (mute both microphone and speakers).
 7131        Deafen,
 7132        /// Leaves the current call.
 7133        LeaveCall,
 7134        /// Shares the current project with collaborators.
 7135        ShareProject,
 7136        /// Shares your screen with collaborators.
 7137        ScreenShare
 7138    ]
 7139);
 7140actions!(
 7141    zed,
 7142    [
 7143        /// Opens the Zed log file.
 7144        OpenLog,
 7145        /// Reveals the Zed log file in the system file manager.
 7146        RevealLogInFileManager
 7147    ]
 7148);
 7149
 7150async fn join_channel_internal(
 7151    channel_id: ChannelId,
 7152    app_state: &Arc<AppState>,
 7153    requesting_window: Option<WindowHandle<Workspace>>,
 7154    active_call: &Entity<ActiveCall>,
 7155    cx: &mut AsyncApp,
 7156) -> Result<bool> {
 7157    let (should_prompt, open_room) = active_call.update(cx, |active_call, cx| {
 7158        let Some(room) = active_call.room().map(|room| room.read(cx)) else {
 7159            return (false, None);
 7160        };
 7161
 7162        let already_in_channel = room.channel_id() == Some(channel_id);
 7163        let should_prompt = room.is_sharing_project()
 7164            && !room.remote_participants().is_empty()
 7165            && !already_in_channel;
 7166        let open_room = if already_in_channel {
 7167            active_call.room().cloned()
 7168        } else {
 7169            None
 7170        };
 7171        (should_prompt, open_room)
 7172    })?;
 7173
 7174    if let Some(room) = open_room {
 7175        let task = room.update(cx, |room, cx| {
 7176            if let Some((project, host)) = room.most_active_project(cx) {
 7177                return Some(join_in_room_project(project, host, app_state.clone(), cx));
 7178            }
 7179
 7180            None
 7181        })?;
 7182        if let Some(task) = task {
 7183            task.await?;
 7184        }
 7185        return anyhow::Ok(true);
 7186    }
 7187
 7188    if should_prompt {
 7189        if let Some(workspace) = requesting_window {
 7190            let answer = workspace
 7191                .update(cx, |_, window, cx| {
 7192                    window.prompt(
 7193                        PromptLevel::Warning,
 7194                        "Do you want to switch channels?",
 7195                        Some("Leaving this call will unshare your current project."),
 7196                        &["Yes, Join Channel", "Cancel"],
 7197                        cx,
 7198                    )
 7199                })?
 7200                .await;
 7201
 7202            if answer == Ok(1) {
 7203                return Ok(false);
 7204            }
 7205        } else {
 7206            return Ok(false); // unreachable!() hopefully
 7207        }
 7208    }
 7209
 7210    let client = cx.update(|cx| active_call.read(cx).client())?;
 7211
 7212    let mut client_status = client.status();
 7213
 7214    // this loop will terminate within client::CONNECTION_TIMEOUT seconds.
 7215    'outer: loop {
 7216        let Some(status) = client_status.recv().await else {
 7217            anyhow::bail!("error connecting");
 7218        };
 7219
 7220        match status {
 7221            Status::Connecting
 7222            | Status::Authenticating
 7223            | Status::Authenticated
 7224            | Status::Reconnecting
 7225            | Status::Reauthenticating
 7226            | Status::Reauthenticated => continue,
 7227            Status::Connected { .. } => break 'outer,
 7228            Status::SignedOut | Status::AuthenticationError => {
 7229                return Err(ErrorCode::SignedOut.into());
 7230            }
 7231            Status::UpgradeRequired => return Err(ErrorCode::UpgradeRequired.into()),
 7232            Status::ConnectionError | Status::ConnectionLost | Status::ReconnectionError { .. } => {
 7233                return Err(ErrorCode::Disconnected.into());
 7234            }
 7235        }
 7236    }
 7237
 7238    let room = active_call
 7239        .update(cx, |active_call, cx| {
 7240            active_call.join_channel(channel_id, cx)
 7241        })?
 7242        .await?;
 7243
 7244    let Some(room) = room else {
 7245        return anyhow::Ok(true);
 7246    };
 7247
 7248    room.update(cx, |room, _| room.room_update_completed())?
 7249        .await;
 7250
 7251    let task = room.update(cx, |room, cx| {
 7252        if let Some((project, host)) = room.most_active_project(cx) {
 7253            return Some(join_in_room_project(project, host, app_state.clone(), cx));
 7254        }
 7255
 7256        // If you are the first to join a channel, see if you should share your project.
 7257        if room.remote_participants().is_empty()
 7258            && !room.local_participant_is_guest()
 7259            && let Some(workspace) = requesting_window
 7260        {
 7261            let project = workspace.update(cx, |workspace, _, cx| {
 7262                let project = workspace.project.read(cx);
 7263
 7264                if !CallSettings::get_global(cx).share_on_join {
 7265                    return None;
 7266                }
 7267
 7268                if (project.is_local() || project.is_via_remote_server())
 7269                    && project.visible_worktrees(cx).any(|tree| {
 7270                        tree.read(cx)
 7271                            .root_entry()
 7272                            .is_some_and(|entry| entry.is_dir())
 7273                    })
 7274                {
 7275                    Some(workspace.project.clone())
 7276                } else {
 7277                    None
 7278                }
 7279            });
 7280            if let Ok(Some(project)) = project {
 7281                return Some(cx.spawn(async move |room, cx| {
 7282                    room.update(cx, |room, cx| room.share_project(project, cx))?
 7283                        .await?;
 7284                    Ok(())
 7285                }));
 7286            }
 7287        }
 7288
 7289        None
 7290    })?;
 7291    if let Some(task) = task {
 7292        task.await?;
 7293        return anyhow::Ok(true);
 7294    }
 7295    anyhow::Ok(false)
 7296}
 7297
 7298pub fn join_channel(
 7299    channel_id: ChannelId,
 7300    app_state: Arc<AppState>,
 7301    requesting_window: Option<WindowHandle<Workspace>>,
 7302    cx: &mut App,
 7303) -> Task<Result<()>> {
 7304    let active_call = ActiveCall::global(cx);
 7305    cx.spawn(async move |cx| {
 7306        let result = join_channel_internal(
 7307            channel_id,
 7308            &app_state,
 7309            requesting_window,
 7310            &active_call,
 7311             cx,
 7312        )
 7313            .await;
 7314
 7315        // join channel succeeded, and opened a window
 7316        if matches!(result, Ok(true)) {
 7317            return anyhow::Ok(());
 7318        }
 7319
 7320        // find an existing workspace to focus and show call controls
 7321        let mut active_window =
 7322            requesting_window.or_else(|| activate_any_workspace_window( cx));
 7323        if active_window.is_none() {
 7324            // no open workspaces, make one to show the error in (blergh)
 7325            let (window_handle, _) = cx
 7326                .update(|cx| {
 7327                    Workspace::new_local(vec![], app_state.clone(), requesting_window, None, cx)
 7328                })?
 7329                .await?;
 7330
 7331            if result.is_ok() {
 7332                cx.update(|cx| {
 7333                    cx.dispatch_action(&OpenChannelNotes);
 7334                }).log_err();
 7335            }
 7336
 7337            active_window = Some(window_handle);
 7338        }
 7339
 7340        if let Err(err) = result {
 7341            log::error!("failed to join channel: {}", err);
 7342            if let Some(active_window) = active_window {
 7343                active_window
 7344                    .update(cx, |_, window, cx| {
 7345                        let detail: SharedString = match err.error_code() {
 7346                            ErrorCode::SignedOut => {
 7347                                "Please sign in to continue.".into()
 7348                            }
 7349                            ErrorCode::UpgradeRequired => {
 7350                                "Your are running an unsupported version of Zed. Please update to continue.".into()
 7351                            }
 7352                            ErrorCode::NoSuchChannel => {
 7353                                "No matching channel was found. Please check the link and try again.".into()
 7354                            }
 7355                            ErrorCode::Forbidden => {
 7356                                "This channel is private, and you do not have access. Please ask someone to add you and try again.".into()
 7357                            }
 7358                            ErrorCode::Disconnected => "Please check your internet connection and try again.".into(),
 7359                            _ => format!("{}\n\nPlease try again.", err).into(),
 7360                        };
 7361                        window.prompt(
 7362                            PromptLevel::Critical,
 7363                            "Failed to join channel",
 7364                            Some(&detail),
 7365                            &["Ok"],
 7366                        cx)
 7367                    })?
 7368                    .await
 7369                    .ok();
 7370            }
 7371        }
 7372
 7373        // return ok, we showed the error to the user.
 7374        anyhow::Ok(())
 7375    })
 7376}
 7377
 7378pub async fn get_any_active_workspace(
 7379    app_state: Arc<AppState>,
 7380    mut cx: AsyncApp,
 7381) -> anyhow::Result<WindowHandle<Workspace>> {
 7382    // find an existing workspace to focus and show call controls
 7383    let active_window = activate_any_workspace_window(&mut cx);
 7384    if active_window.is_none() {
 7385        cx.update(|cx| Workspace::new_local(vec![], app_state.clone(), None, None, cx))?
 7386            .await?;
 7387    }
 7388    activate_any_workspace_window(&mut cx).context("could not open zed")
 7389}
 7390
 7391fn activate_any_workspace_window(cx: &mut AsyncApp) -> Option<WindowHandle<Workspace>> {
 7392    cx.update(|cx| {
 7393        if let Some(workspace_window) = cx
 7394            .active_window()
 7395            .and_then(|window| window.downcast::<Workspace>())
 7396        {
 7397            return Some(workspace_window);
 7398        }
 7399
 7400        for window in cx.windows() {
 7401            if let Some(workspace_window) = window.downcast::<Workspace>() {
 7402                workspace_window
 7403                    .update(cx, |_, window, _| window.activate_window())
 7404                    .ok();
 7405                return Some(workspace_window);
 7406            }
 7407        }
 7408        None
 7409    })
 7410    .ok()
 7411    .flatten()
 7412}
 7413
 7414pub fn local_workspace_windows(cx: &App) -> Vec<WindowHandle<Workspace>> {
 7415    cx.windows()
 7416        .into_iter()
 7417        .filter_map(|window| window.downcast::<Workspace>())
 7418        .filter(|workspace| {
 7419            workspace
 7420                .read(cx)
 7421                .is_ok_and(|workspace| workspace.project.read(cx).is_local())
 7422        })
 7423        .collect()
 7424}
 7425
 7426#[derive(Default)]
 7427pub struct OpenOptions {
 7428    pub visible: Option<OpenVisible>,
 7429    pub focus: Option<bool>,
 7430    pub open_new_workspace: Option<bool>,
 7431    pub prefer_focused_window: bool,
 7432    pub replace_window: Option<WindowHandle<Workspace>>,
 7433    pub env: Option<HashMap<String, String>>,
 7434}
 7435
 7436#[allow(clippy::type_complexity)]
 7437pub fn open_paths(
 7438    abs_paths: &[PathBuf],
 7439    app_state: Arc<AppState>,
 7440    open_options: OpenOptions,
 7441    cx: &mut App,
 7442) -> Task<
 7443    anyhow::Result<(
 7444        WindowHandle<Workspace>,
 7445        Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 7446    )>,
 7447> {
 7448    let abs_paths = abs_paths.to_vec();
 7449    let mut existing = None;
 7450    let mut best_match = None;
 7451    let mut open_visible = OpenVisible::All;
 7452    #[cfg(target_os = "windows")]
 7453    let wsl_path = abs_paths
 7454        .iter()
 7455        .find_map(|p| util::paths::WslPath::from_path(p));
 7456
 7457    cx.spawn(async move |cx| {
 7458        if open_options.open_new_workspace != Some(true) {
 7459            let all_paths = abs_paths.iter().map(|path| app_state.fs.metadata(path));
 7460            let all_metadatas = futures::future::join_all(all_paths)
 7461                .await
 7462                .into_iter()
 7463                .filter_map(|result| result.ok().flatten())
 7464                .collect::<Vec<_>>();
 7465
 7466            cx.update(|cx| {
 7467                for window in local_workspace_windows(cx) {
 7468                    if let Ok(workspace) = window.read(cx) {
 7469                        let m = workspace.project.read(cx).visibility_for_paths(
 7470                            &abs_paths,
 7471                            &all_metadatas,
 7472                            open_options.open_new_workspace == None,
 7473                            cx,
 7474                        );
 7475                        if m > best_match {
 7476                            existing = Some(window);
 7477                            best_match = m;
 7478                        } else if best_match.is_none()
 7479                            && open_options.open_new_workspace == Some(false)
 7480                        {
 7481                            existing = Some(window)
 7482                        }
 7483                    }
 7484                }
 7485            })?;
 7486
 7487            if open_options.open_new_workspace.is_none()
 7488                && (existing.is_none() || open_options.prefer_focused_window)
 7489                && all_metadatas.iter().all(|file| !file.is_dir)
 7490            {
 7491                cx.update(|cx| {
 7492                    if let Some(window) = cx
 7493                        .active_window()
 7494                        .and_then(|window| window.downcast::<Workspace>())
 7495                        && let Ok(workspace) = window.read(cx)
 7496                    {
 7497                        let project = workspace.project().read(cx);
 7498                        if project.is_local() && !project.is_via_collab() {
 7499                            existing = Some(window);
 7500                            open_visible = OpenVisible::None;
 7501                            return;
 7502                        }
 7503                    }
 7504                    for window in local_workspace_windows(cx) {
 7505                        if let Ok(workspace) = window.read(cx) {
 7506                            let project = workspace.project().read(cx);
 7507                            if project.is_via_collab() {
 7508                                continue;
 7509                            }
 7510                            existing = Some(window);
 7511                            open_visible = OpenVisible::None;
 7512                            break;
 7513                        }
 7514                    }
 7515                })?;
 7516            }
 7517        }
 7518
 7519        let result = if let Some(existing) = existing {
 7520            let open_task = existing
 7521                .update(cx, |workspace, window, cx| {
 7522                    window.activate_window();
 7523                    workspace.open_paths(
 7524                        abs_paths,
 7525                        OpenOptions {
 7526                            visible: Some(open_visible),
 7527                            ..Default::default()
 7528                        },
 7529                        None,
 7530                        window,
 7531                        cx,
 7532                    )
 7533                })?
 7534                .await;
 7535
 7536            _ = existing.update(cx, |workspace, _, cx| {
 7537                for item in open_task.iter().flatten() {
 7538                    if let Err(e) = item {
 7539                        workspace.show_error(&e, cx);
 7540                    }
 7541                }
 7542            });
 7543
 7544            Ok((existing, open_task))
 7545        } else {
 7546            cx.update(move |cx| {
 7547                Workspace::new_local(
 7548                    abs_paths,
 7549                    app_state.clone(),
 7550                    open_options.replace_window,
 7551                    open_options.env,
 7552                    cx,
 7553                )
 7554            })?
 7555            .await
 7556        };
 7557
 7558        #[cfg(target_os = "windows")]
 7559        if let Some(util::paths::WslPath{distro, path}) = wsl_path
 7560            && let Ok((workspace, _)) = &result
 7561        {
 7562            workspace
 7563                .update(cx, move |workspace, _window, cx| {
 7564                    struct OpenInWsl;
 7565                    workspace.show_notification(NotificationId::unique::<OpenInWsl>(), cx, move |cx| {
 7566                        let display_path = util::markdown::MarkdownInlineCode(&path.to_string_lossy());
 7567                        let msg = format!("{display_path} is inside a WSL filesystem, some features may not work unless you open it with WSL remote");
 7568                        cx.new(move |cx| {
 7569                            MessageNotification::new(msg, cx)
 7570                                .primary_message("Open in WSL")
 7571                                .primary_icon(IconName::FolderOpen)
 7572                                .primary_on_click(move |window, cx| {
 7573                                    window.dispatch_action(Box::new(remote::OpenWslPath {
 7574                                            distro: remote::WslConnectionOptions {
 7575                                                    distro_name: distro.clone(),
 7576                                                user: None,
 7577                                            },
 7578                                            paths: vec![path.clone().into()],
 7579                                        }), cx)
 7580                                })
 7581                        })
 7582                    });
 7583                })
 7584                .unwrap();
 7585        };
 7586        result
 7587    })
 7588}
 7589
 7590pub fn open_new(
 7591    open_options: OpenOptions,
 7592    app_state: Arc<AppState>,
 7593    cx: &mut App,
 7594    init: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + 'static + Send,
 7595) -> Task<anyhow::Result<()>> {
 7596    let task = Workspace::new_local(Vec::new(), app_state, None, open_options.env, cx);
 7597    cx.spawn(async move |cx| {
 7598        let (workspace, opened_paths) = task.await?;
 7599        workspace.update(cx, |workspace, window, cx| {
 7600            if opened_paths.is_empty() {
 7601                init(workspace, window, cx)
 7602            }
 7603        })?;
 7604        Ok(())
 7605    })
 7606}
 7607
 7608pub fn create_and_open_local_file(
 7609    path: &'static Path,
 7610    window: &mut Window,
 7611    cx: &mut Context<Workspace>,
 7612    default_content: impl 'static + Send + FnOnce() -> Rope,
 7613) -> Task<Result<Box<dyn ItemHandle>>> {
 7614    cx.spawn_in(window, async move |workspace, cx| {
 7615        let fs = workspace.read_with(cx, |workspace, _| workspace.app_state().fs.clone())?;
 7616        if !fs.is_file(path).await {
 7617            fs.create_file(path, Default::default()).await?;
 7618            fs.save(path, &default_content(), Default::default())
 7619                .await?;
 7620        }
 7621
 7622        let mut items = workspace
 7623            .update_in(cx, |workspace, window, cx| {
 7624                workspace.with_local_workspace(window, cx, |workspace, window, cx| {
 7625                    workspace.open_paths(
 7626                        vec![path.to_path_buf()],
 7627                        OpenOptions {
 7628                            visible: Some(OpenVisible::None),
 7629                            ..Default::default()
 7630                        },
 7631                        None,
 7632                        window,
 7633                        cx,
 7634                    )
 7635                })
 7636            })?
 7637            .await?
 7638            .await;
 7639
 7640        let item = items.pop().flatten();
 7641        item.with_context(|| format!("path {path:?} is not a file"))?
 7642    })
 7643}
 7644
 7645pub fn open_remote_project_with_new_connection(
 7646    window: WindowHandle<Workspace>,
 7647    remote_connection: Arc<dyn RemoteConnection>,
 7648    cancel_rx: oneshot::Receiver<()>,
 7649    delegate: Arc<dyn RemoteClientDelegate>,
 7650    app_state: Arc<AppState>,
 7651    paths: Vec<PathBuf>,
 7652    cx: &mut App,
 7653) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 7654    cx.spawn(async move |cx| {
 7655        let (workspace_id, serialized_workspace) =
 7656            serialize_remote_project(remote_connection.connection_options(), paths.clone(), cx)
 7657                .await?;
 7658
 7659        let session = match cx
 7660            .update(|cx| {
 7661                remote::RemoteClient::new(
 7662                    ConnectionIdentifier::Workspace(workspace_id.0),
 7663                    remote_connection,
 7664                    cancel_rx,
 7665                    delegate,
 7666                    cx,
 7667                )
 7668            })?
 7669            .await?
 7670        {
 7671            Some(result) => result,
 7672            None => return Ok(Vec::new()),
 7673        };
 7674
 7675        let project = cx.update(|cx| {
 7676            project::Project::remote(
 7677                session,
 7678                app_state.client.clone(),
 7679                app_state.node_runtime.clone(),
 7680                app_state.user_store.clone(),
 7681                app_state.languages.clone(),
 7682                app_state.fs.clone(),
 7683                cx,
 7684            )
 7685        })?;
 7686
 7687        open_remote_project_inner(
 7688            project,
 7689            paths,
 7690            workspace_id,
 7691            serialized_workspace,
 7692            app_state,
 7693            window,
 7694            cx,
 7695        )
 7696        .await
 7697    })
 7698}
 7699
 7700pub fn open_remote_project_with_existing_connection(
 7701    connection_options: RemoteConnectionOptions,
 7702    project: Entity<Project>,
 7703    paths: Vec<PathBuf>,
 7704    app_state: Arc<AppState>,
 7705    window: WindowHandle<Workspace>,
 7706    cx: &mut AsyncApp,
 7707) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 7708    cx.spawn(async move |cx| {
 7709        let (workspace_id, serialized_workspace) =
 7710            serialize_remote_project(connection_options.clone(), paths.clone(), cx).await?;
 7711
 7712        open_remote_project_inner(
 7713            project,
 7714            paths,
 7715            workspace_id,
 7716            serialized_workspace,
 7717            app_state,
 7718            window,
 7719            cx,
 7720        )
 7721        .await
 7722    })
 7723}
 7724
 7725async fn open_remote_project_inner(
 7726    project: Entity<Project>,
 7727    paths: Vec<PathBuf>,
 7728    workspace_id: WorkspaceId,
 7729    serialized_workspace: Option<SerializedWorkspace>,
 7730    app_state: Arc<AppState>,
 7731    window: WindowHandle<Workspace>,
 7732    cx: &mut AsyncApp,
 7733) -> Result<Vec<Option<Box<dyn ItemHandle>>>> {
 7734    let toolchains = DB.toolchains(workspace_id).await?;
 7735    for (toolchain, worktree_id, path) in toolchains {
 7736        project
 7737            .update(cx, |this, cx| {
 7738                this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 7739            })?
 7740            .await;
 7741    }
 7742    let mut project_paths_to_open = vec![];
 7743    let mut project_path_errors = vec![];
 7744
 7745    for path in paths {
 7746        let result = cx
 7747            .update(|cx| Workspace::project_path_for_path(project.clone(), &path, true, cx))?
 7748            .await;
 7749        match result {
 7750            Ok((_, project_path)) => {
 7751                project_paths_to_open.push((path.clone(), Some(project_path)));
 7752            }
 7753            Err(error) => {
 7754                project_path_errors.push(error);
 7755            }
 7756        };
 7757    }
 7758
 7759    if project_paths_to_open.is_empty() {
 7760        return Err(project_path_errors.pop().context("no paths given")?);
 7761    }
 7762
 7763    if let Some(detach_session_task) = window
 7764        .update(cx, |_workspace, window, cx| {
 7765            cx.spawn_in(window, async move |this, cx| {
 7766                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))
 7767            })
 7768        })
 7769        .ok()
 7770    {
 7771        detach_session_task.await.ok();
 7772    }
 7773
 7774    cx.update_window(window.into(), |_, window, cx| {
 7775        window.replace_root(cx, |window, cx| {
 7776            telemetry::event!("SSH Project Opened");
 7777
 7778            let mut workspace =
 7779                Workspace::new(Some(workspace_id), project, app_state.clone(), window, cx);
 7780            workspace.update_history(cx);
 7781
 7782            if let Some(ref serialized) = serialized_workspace {
 7783                workspace.centered_layout = serialized.centered_layout;
 7784            }
 7785
 7786            workspace
 7787        });
 7788    })?;
 7789
 7790    let items = window
 7791        .update(cx, |_, window, cx| {
 7792            window.activate_window();
 7793            open_items(serialized_workspace, project_paths_to_open, window, cx)
 7794        })?
 7795        .await?;
 7796
 7797    window.update(cx, |workspace, _, cx| {
 7798        for error in project_path_errors {
 7799            if error.error_code() == proto::ErrorCode::DevServerProjectPathDoesNotExist {
 7800                if let Some(path) = error.error_tag("path") {
 7801                    workspace.show_error(&anyhow!("'{path}' does not exist"), cx)
 7802                }
 7803            } else {
 7804                workspace.show_error(&error, cx)
 7805            }
 7806        }
 7807    })?;
 7808
 7809    Ok(items.into_iter().map(|item| item?.ok()).collect())
 7810}
 7811
 7812fn serialize_remote_project(
 7813    connection_options: RemoteConnectionOptions,
 7814    paths: Vec<PathBuf>,
 7815    cx: &AsyncApp,
 7816) -> Task<Result<(WorkspaceId, Option<SerializedWorkspace>)>> {
 7817    cx.background_spawn(async move {
 7818        let remote_connection_id = persistence::DB
 7819            .get_or_create_remote_connection(connection_options)
 7820            .await?;
 7821
 7822        let serialized_workspace =
 7823            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 7824
 7825        let workspace_id = if let Some(workspace_id) =
 7826            serialized_workspace.as_ref().map(|workspace| workspace.id)
 7827        {
 7828            workspace_id
 7829        } else {
 7830            persistence::DB.next_id().await?
 7831        };
 7832
 7833        Ok((workspace_id, serialized_workspace))
 7834    })
 7835}
 7836
 7837pub fn join_in_room_project(
 7838    project_id: u64,
 7839    follow_user_id: u64,
 7840    app_state: Arc<AppState>,
 7841    cx: &mut App,
 7842) -> Task<Result<()>> {
 7843    let windows = cx.windows();
 7844    cx.spawn(async move |cx| {
 7845        let existing_workspace = windows.into_iter().find_map(|window_handle| {
 7846            window_handle
 7847                .downcast::<Workspace>()
 7848                .and_then(|window_handle| {
 7849                    window_handle
 7850                        .update(cx, |workspace, _window, cx| {
 7851                            if workspace.project().read(cx).remote_id() == Some(project_id) {
 7852                                Some(window_handle)
 7853                            } else {
 7854                                None
 7855                            }
 7856                        })
 7857                        .unwrap_or(None)
 7858                })
 7859        });
 7860
 7861        let workspace = if let Some(existing_workspace) = existing_workspace {
 7862            existing_workspace
 7863        } else {
 7864            let active_call = cx.update(|cx| ActiveCall::global(cx))?;
 7865            let room = active_call
 7866                .read_with(cx, |call, _| call.room().cloned())?
 7867                .context("not in a call")?;
 7868            let project = room
 7869                .update(cx, |room, cx| {
 7870                    room.join_project(
 7871                        project_id,
 7872                        app_state.languages.clone(),
 7873                        app_state.fs.clone(),
 7874                        cx,
 7875                    )
 7876                })?
 7877                .await?;
 7878
 7879            let window_bounds_override = window_bounds_env_override();
 7880            cx.update(|cx| {
 7881                let mut options = (app_state.build_window_options)(None, cx);
 7882                options.window_bounds = window_bounds_override.map(WindowBounds::Windowed);
 7883                cx.open_window(options, |window, cx| {
 7884                    cx.new(|cx| {
 7885                        Workspace::new(Default::default(), project, app_state.clone(), window, cx)
 7886                    })
 7887                })
 7888            })??
 7889        };
 7890
 7891        workspace.update(cx, |workspace, window, cx| {
 7892            cx.activate(true);
 7893            window.activate_window();
 7894
 7895            if let Some(room) = ActiveCall::global(cx).read(cx).room().cloned() {
 7896                let follow_peer_id = room
 7897                    .read(cx)
 7898                    .remote_participants()
 7899                    .iter()
 7900                    .find(|(_, participant)| participant.user.id == follow_user_id)
 7901                    .map(|(_, p)| p.peer_id)
 7902                    .or_else(|| {
 7903                        // If we couldn't follow the given user, follow the host instead.
 7904                        let collaborator = workspace
 7905                            .project()
 7906                            .read(cx)
 7907                            .collaborators()
 7908                            .values()
 7909                            .find(|collaborator| collaborator.is_host)?;
 7910                        Some(collaborator.peer_id)
 7911                    });
 7912
 7913                if let Some(follow_peer_id) = follow_peer_id {
 7914                    workspace.follow(follow_peer_id, window, cx);
 7915                }
 7916            }
 7917        })?;
 7918
 7919        anyhow::Ok(())
 7920    })
 7921}
 7922
 7923pub fn reload(cx: &mut App) {
 7924    let should_confirm = WorkspaceSettings::get_global(cx).confirm_quit;
 7925    let mut workspace_windows = cx
 7926        .windows()
 7927        .into_iter()
 7928        .filter_map(|window| window.downcast::<Workspace>())
 7929        .collect::<Vec<_>>();
 7930
 7931    // If multiple windows have unsaved changes, and need a save prompt,
 7932    // prompt in the active window before switching to a different window.
 7933    workspace_windows.sort_by_key(|window| window.is_active(cx) == Some(false));
 7934
 7935    let mut prompt = None;
 7936    if let (true, Some(window)) = (should_confirm, workspace_windows.first()) {
 7937        prompt = window
 7938            .update(cx, |_, window, cx| {
 7939                window.prompt(
 7940                    PromptLevel::Info,
 7941                    "Are you sure you want to restart?",
 7942                    None,
 7943                    &["Restart", "Cancel"],
 7944                    cx,
 7945                )
 7946            })
 7947            .ok();
 7948    }
 7949
 7950    cx.spawn(async move |cx| {
 7951        if let Some(prompt) = prompt {
 7952            let answer = prompt.await?;
 7953            if answer != 0 {
 7954                return Ok(());
 7955            }
 7956        }
 7957
 7958        // If the user cancels any save prompt, then keep the app open.
 7959        for window in workspace_windows {
 7960            if let Ok(should_close) = window.update(cx, |workspace, window, cx| {
 7961                workspace.prepare_to_close(CloseIntent::Quit, window, cx)
 7962            }) && !should_close.await?
 7963            {
 7964                return Ok(());
 7965            }
 7966        }
 7967        cx.update(|cx| cx.restart())
 7968    })
 7969    .detach_and_log_err(cx);
 7970}
 7971
 7972fn parse_pixel_position_env_var(value: &str) -> Option<Point<Pixels>> {
 7973    let mut parts = value.split(',');
 7974    let x: usize = parts.next()?.parse().ok()?;
 7975    let y: usize = parts.next()?.parse().ok()?;
 7976    Some(point(px(x as f32), px(y as f32)))
 7977}
 7978
 7979fn parse_pixel_size_env_var(value: &str) -> Option<Size<Pixels>> {
 7980    let mut parts = value.split(',');
 7981    let width: usize = parts.next()?.parse().ok()?;
 7982    let height: usize = parts.next()?.parse().ok()?;
 7983    Some(size(px(width as f32), px(height as f32)))
 7984}
 7985
 7986/// Add client-side decorations (rounded corners, shadows, resize handling) when appropriate.
 7987pub fn client_side_decorations(
 7988    element: impl IntoElement,
 7989    window: &mut Window,
 7990    cx: &mut App,
 7991) -> Stateful<Div> {
 7992    const BORDER_SIZE: Pixels = px(1.0);
 7993    let decorations = window.window_decorations();
 7994
 7995    match decorations {
 7996        Decorations::Client { .. } => window.set_client_inset(theme::CLIENT_SIDE_DECORATION_SHADOW),
 7997        Decorations::Server => window.set_client_inset(px(0.0)),
 7998    }
 7999
 8000    struct GlobalResizeEdge(ResizeEdge);
 8001    impl Global for GlobalResizeEdge {}
 8002
 8003    div()
 8004        .id("window-backdrop")
 8005        .bg(transparent_black())
 8006        .map(|div| match decorations {
 8007            Decorations::Server => div,
 8008            Decorations::Client { tiling, .. } => div
 8009                .when(!(tiling.top || tiling.right), |div| {
 8010                    div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8011                })
 8012                .when(!(tiling.top || tiling.left), |div| {
 8013                    div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8014                })
 8015                .when(!(tiling.bottom || tiling.right), |div| {
 8016                    div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8017                })
 8018                .when(!(tiling.bottom || tiling.left), |div| {
 8019                    div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8020                })
 8021                .when(!tiling.top, |div| {
 8022                    div.pt(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8023                })
 8024                .when(!tiling.bottom, |div| {
 8025                    div.pb(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8026                })
 8027                .when(!tiling.left, |div| {
 8028                    div.pl(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8029                })
 8030                .when(!tiling.right, |div| {
 8031                    div.pr(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8032                })
 8033                .on_mouse_move(move |e, window, cx| {
 8034                    let size = window.window_bounds().get_bounds().size;
 8035                    let pos = e.position;
 8036
 8037                    let new_edge =
 8038                        resize_edge(pos, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling);
 8039
 8040                    let edge = cx.try_global::<GlobalResizeEdge>();
 8041                    if new_edge != edge.map(|edge| edge.0) {
 8042                        window
 8043                            .window_handle()
 8044                            .update(cx, |workspace, _, cx| {
 8045                                cx.notify(workspace.entity_id());
 8046                            })
 8047                            .ok();
 8048                    }
 8049                })
 8050                .on_mouse_down(MouseButton::Left, move |e, window, _| {
 8051                    let size = window.window_bounds().get_bounds().size;
 8052                    let pos = e.position;
 8053
 8054                    let edge = match resize_edge(
 8055                        pos,
 8056                        theme::CLIENT_SIDE_DECORATION_SHADOW,
 8057                        size,
 8058                        tiling,
 8059                    ) {
 8060                        Some(value) => value,
 8061                        None => return,
 8062                    };
 8063
 8064                    window.start_window_resize(edge);
 8065                }),
 8066        })
 8067        .size_full()
 8068        .child(
 8069            div()
 8070                .cursor(CursorStyle::Arrow)
 8071                .map(|div| match decorations {
 8072                    Decorations::Server => div,
 8073                    Decorations::Client { tiling } => div
 8074                        .border_color(cx.theme().colors().border)
 8075                        .when(!(tiling.top || tiling.right), |div| {
 8076                            div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8077                        })
 8078                        .when(!(tiling.top || tiling.left), |div| {
 8079                            div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8080                        })
 8081                        .when(!(tiling.bottom || tiling.right), |div| {
 8082                            div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8083                        })
 8084                        .when(!(tiling.bottom || tiling.left), |div| {
 8085                            div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8086                        })
 8087                        .when(!tiling.top, |div| div.border_t(BORDER_SIZE))
 8088                        .when(!tiling.bottom, |div| div.border_b(BORDER_SIZE))
 8089                        .when(!tiling.left, |div| div.border_l(BORDER_SIZE))
 8090                        .when(!tiling.right, |div| div.border_r(BORDER_SIZE))
 8091                        .when(!tiling.is_tiled(), |div| {
 8092                            div.shadow(vec![gpui::BoxShadow {
 8093                                color: Hsla {
 8094                                    h: 0.,
 8095                                    s: 0.,
 8096                                    l: 0.,
 8097                                    a: 0.4,
 8098                                },
 8099                                blur_radius: theme::CLIENT_SIDE_DECORATION_SHADOW / 2.,
 8100                                spread_radius: px(0.),
 8101                                offset: point(px(0.0), px(0.0)),
 8102                            }])
 8103                        }),
 8104                })
 8105                .on_mouse_move(|_e, _, cx| {
 8106                    cx.stop_propagation();
 8107                })
 8108                .size_full()
 8109                .child(element),
 8110        )
 8111        .map(|div| match decorations {
 8112            Decorations::Server => div,
 8113            Decorations::Client { tiling, .. } => div.child(
 8114                canvas(
 8115                    |_bounds, window, _| {
 8116                        window.insert_hitbox(
 8117                            Bounds::new(
 8118                                point(px(0.0), px(0.0)),
 8119                                window.window_bounds().get_bounds().size,
 8120                            ),
 8121                            HitboxBehavior::Normal,
 8122                        )
 8123                    },
 8124                    move |_bounds, hitbox, window, cx| {
 8125                        let mouse = window.mouse_position();
 8126                        let size = window.window_bounds().get_bounds().size;
 8127                        let Some(edge) =
 8128                            resize_edge(mouse, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling)
 8129                        else {
 8130                            return;
 8131                        };
 8132                        cx.set_global(GlobalResizeEdge(edge));
 8133                        window.set_cursor_style(
 8134                            match edge {
 8135                                ResizeEdge::Top | ResizeEdge::Bottom => CursorStyle::ResizeUpDown,
 8136                                ResizeEdge::Left | ResizeEdge::Right => {
 8137                                    CursorStyle::ResizeLeftRight
 8138                                }
 8139                                ResizeEdge::TopLeft | ResizeEdge::BottomRight => {
 8140                                    CursorStyle::ResizeUpLeftDownRight
 8141                                }
 8142                                ResizeEdge::TopRight | ResizeEdge::BottomLeft => {
 8143                                    CursorStyle::ResizeUpRightDownLeft
 8144                                }
 8145                            },
 8146                            &hitbox,
 8147                        );
 8148                    },
 8149                )
 8150                .size_full()
 8151                .absolute(),
 8152            ),
 8153        })
 8154}
 8155
 8156fn resize_edge(
 8157    pos: Point<Pixels>,
 8158    shadow_size: Pixels,
 8159    window_size: Size<Pixels>,
 8160    tiling: Tiling,
 8161) -> Option<ResizeEdge> {
 8162    let bounds = Bounds::new(Point::default(), window_size).inset(shadow_size * 1.5);
 8163    if bounds.contains(&pos) {
 8164        return None;
 8165    }
 8166
 8167    let corner_size = size(shadow_size * 1.5, shadow_size * 1.5);
 8168    let top_left_bounds = Bounds::new(Point::new(px(0.), px(0.)), corner_size);
 8169    if !tiling.top && top_left_bounds.contains(&pos) {
 8170        return Some(ResizeEdge::TopLeft);
 8171    }
 8172
 8173    let top_right_bounds = Bounds::new(
 8174        Point::new(window_size.width - corner_size.width, px(0.)),
 8175        corner_size,
 8176    );
 8177    if !tiling.top && top_right_bounds.contains(&pos) {
 8178        return Some(ResizeEdge::TopRight);
 8179    }
 8180
 8181    let bottom_left_bounds = Bounds::new(
 8182        Point::new(px(0.), window_size.height - corner_size.height),
 8183        corner_size,
 8184    );
 8185    if !tiling.bottom && bottom_left_bounds.contains(&pos) {
 8186        return Some(ResizeEdge::BottomLeft);
 8187    }
 8188
 8189    let bottom_right_bounds = Bounds::new(
 8190        Point::new(
 8191            window_size.width - corner_size.width,
 8192            window_size.height - corner_size.height,
 8193        ),
 8194        corner_size,
 8195    );
 8196    if !tiling.bottom && bottom_right_bounds.contains(&pos) {
 8197        return Some(ResizeEdge::BottomRight);
 8198    }
 8199
 8200    if !tiling.top && pos.y < shadow_size {
 8201        Some(ResizeEdge::Top)
 8202    } else if !tiling.bottom && pos.y > window_size.height - shadow_size {
 8203        Some(ResizeEdge::Bottom)
 8204    } else if !tiling.left && pos.x < shadow_size {
 8205        Some(ResizeEdge::Left)
 8206    } else if !tiling.right && pos.x > window_size.width - shadow_size {
 8207        Some(ResizeEdge::Right)
 8208    } else {
 8209        None
 8210    }
 8211}
 8212
 8213fn join_pane_into_active(
 8214    active_pane: &Entity<Pane>,
 8215    pane: &Entity<Pane>,
 8216    window: &mut Window,
 8217    cx: &mut App,
 8218) {
 8219    if pane == active_pane {
 8220    } else if pane.read(cx).items_len() == 0 {
 8221        pane.update(cx, |_, cx| {
 8222            cx.emit(pane::Event::Remove {
 8223                focus_on_pane: None,
 8224            });
 8225        })
 8226    } else {
 8227        move_all_items(pane, active_pane, window, cx);
 8228    }
 8229}
 8230
 8231fn move_all_items(
 8232    from_pane: &Entity<Pane>,
 8233    to_pane: &Entity<Pane>,
 8234    window: &mut Window,
 8235    cx: &mut App,
 8236) {
 8237    let destination_is_different = from_pane != to_pane;
 8238    let mut moved_items = 0;
 8239    for (item_ix, item_handle) in from_pane
 8240        .read(cx)
 8241        .items()
 8242        .enumerate()
 8243        .map(|(ix, item)| (ix, item.clone()))
 8244        .collect::<Vec<_>>()
 8245    {
 8246        let ix = item_ix - moved_items;
 8247        if destination_is_different {
 8248            // Close item from previous pane
 8249            from_pane.update(cx, |source, cx| {
 8250                source.remove_item_and_focus_on_pane(ix, false, to_pane.clone(), window, cx);
 8251            });
 8252            moved_items += 1;
 8253        }
 8254
 8255        // This automatically removes duplicate items in the pane
 8256        to_pane.update(cx, |destination, cx| {
 8257            destination.add_item(item_handle, true, true, None, window, cx);
 8258            window.focus(&destination.focus_handle(cx))
 8259        });
 8260    }
 8261}
 8262
 8263pub fn move_item(
 8264    source: &Entity<Pane>,
 8265    destination: &Entity<Pane>,
 8266    item_id_to_move: EntityId,
 8267    destination_index: usize,
 8268    activate: bool,
 8269    window: &mut Window,
 8270    cx: &mut App,
 8271) {
 8272    let Some((item_ix, item_handle)) = source
 8273        .read(cx)
 8274        .items()
 8275        .enumerate()
 8276        .find(|(_, item_handle)| item_handle.item_id() == item_id_to_move)
 8277        .map(|(ix, item)| (ix, item.clone()))
 8278    else {
 8279        // Tab was closed during drag
 8280        return;
 8281    };
 8282
 8283    if source != destination {
 8284        // Close item from previous pane
 8285        source.update(cx, |source, cx| {
 8286            source.remove_item_and_focus_on_pane(item_ix, false, destination.clone(), window, cx);
 8287        });
 8288    }
 8289
 8290    // This automatically removes duplicate items in the pane
 8291    destination.update(cx, |destination, cx| {
 8292        destination.add_item_inner(
 8293            item_handle,
 8294            activate,
 8295            activate,
 8296            activate,
 8297            Some(destination_index),
 8298            window,
 8299            cx,
 8300        );
 8301        if activate {
 8302            window.focus(&destination.focus_handle(cx))
 8303        }
 8304    });
 8305}
 8306
 8307pub fn move_active_item(
 8308    source: &Entity<Pane>,
 8309    destination: &Entity<Pane>,
 8310    focus_destination: bool,
 8311    close_if_empty: bool,
 8312    window: &mut Window,
 8313    cx: &mut App,
 8314) {
 8315    if source == destination {
 8316        return;
 8317    }
 8318    let Some(active_item) = source.read(cx).active_item() else {
 8319        return;
 8320    };
 8321    source.update(cx, |source_pane, cx| {
 8322        let item_id = active_item.item_id();
 8323        source_pane.remove_item(item_id, false, close_if_empty, window, cx);
 8324        destination.update(cx, |target_pane, cx| {
 8325            target_pane.add_item(
 8326                active_item,
 8327                focus_destination,
 8328                focus_destination,
 8329                Some(target_pane.items_len()),
 8330                window,
 8331                cx,
 8332            );
 8333        });
 8334    });
 8335}
 8336
 8337pub fn clone_active_item(
 8338    workspace_id: Option<WorkspaceId>,
 8339    source: &Entity<Pane>,
 8340    destination: &Entity<Pane>,
 8341    focus_destination: bool,
 8342    window: &mut Window,
 8343    cx: &mut App,
 8344) {
 8345    if source == destination {
 8346        return;
 8347    }
 8348    let Some(active_item) = source.read(cx).active_item() else {
 8349        return;
 8350    };
 8351    if !active_item.can_split(cx) {
 8352        return;
 8353    }
 8354    let destination = destination.downgrade();
 8355    let task = active_item.clone_on_split(workspace_id, window, cx);
 8356    window
 8357        .spawn(cx, async move |cx| {
 8358            let Some(clone) = task.await else {
 8359                return;
 8360            };
 8361            destination
 8362                .update_in(cx, |target_pane, window, cx| {
 8363                    target_pane.add_item(
 8364                        clone,
 8365                        focus_destination,
 8366                        focus_destination,
 8367                        Some(target_pane.items_len()),
 8368                        window,
 8369                        cx,
 8370                    );
 8371                })
 8372                .log_err();
 8373        })
 8374        .detach();
 8375}
 8376
 8377#[derive(Debug)]
 8378pub struct WorkspacePosition {
 8379    pub window_bounds: Option<WindowBounds>,
 8380    pub display: Option<Uuid>,
 8381    pub centered_layout: bool,
 8382}
 8383
 8384pub fn remote_workspace_position_from_db(
 8385    connection_options: RemoteConnectionOptions,
 8386    paths_to_open: &[PathBuf],
 8387    cx: &App,
 8388) -> Task<Result<WorkspacePosition>> {
 8389    let paths = paths_to_open.to_vec();
 8390
 8391    cx.background_spawn(async move {
 8392        let remote_connection_id = persistence::DB
 8393            .get_or_create_remote_connection(connection_options)
 8394            .await
 8395            .context("fetching serialized ssh project")?;
 8396        let serialized_workspace =
 8397            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 8398
 8399        let (window_bounds, display) = if let Some(bounds) = window_bounds_env_override() {
 8400            (Some(WindowBounds::Windowed(bounds)), None)
 8401        } else {
 8402            let restorable_bounds = serialized_workspace
 8403                .as_ref()
 8404                .and_then(|workspace| Some((workspace.display?, workspace.window_bounds?)))
 8405                .or_else(|| {
 8406                    let (display, window_bounds) = DB.last_window().log_err()?;
 8407                    Some((display?, window_bounds?))
 8408                });
 8409
 8410            if let Some((serialized_display, serialized_status)) = restorable_bounds {
 8411                (Some(serialized_status.0), Some(serialized_display))
 8412            } else {
 8413                (None, None)
 8414            }
 8415        };
 8416
 8417        let centered_layout = serialized_workspace
 8418            .as_ref()
 8419            .map(|w| w.centered_layout)
 8420            .unwrap_or(false);
 8421
 8422        Ok(WorkspacePosition {
 8423            window_bounds,
 8424            display,
 8425            centered_layout,
 8426        })
 8427    })
 8428}
 8429
 8430pub fn with_active_or_new_workspace(
 8431    cx: &mut App,
 8432    f: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send + 'static,
 8433) {
 8434    match cx.active_window().and_then(|w| w.downcast::<Workspace>()) {
 8435        Some(workspace) => {
 8436            cx.defer(move |cx| {
 8437                workspace
 8438                    .update(cx, |workspace, window, cx| f(workspace, window, cx))
 8439                    .log_err();
 8440            });
 8441        }
 8442        None => {
 8443            let app_state = AppState::global(cx);
 8444            if let Some(app_state) = app_state.upgrade() {
 8445                open_new(
 8446                    OpenOptions::default(),
 8447                    app_state,
 8448                    cx,
 8449                    move |workspace, window, cx| f(workspace, window, cx),
 8450                )
 8451                .detach_and_log_err(cx);
 8452            }
 8453        }
 8454    }
 8455}
 8456
 8457#[cfg(test)]
 8458mod tests {
 8459    use std::{cell::RefCell, rc::Rc};
 8460
 8461    use super::*;
 8462    use crate::{
 8463        dock::{PanelEvent, test::TestPanel},
 8464        item::{
 8465            ItemBufferKind, ItemEvent,
 8466            test::{TestItem, TestProjectItem},
 8467        },
 8468    };
 8469    use fs::FakeFs;
 8470    use gpui::{
 8471        DismissEvent, Empty, EventEmitter, FocusHandle, Focusable, Render, TestAppContext,
 8472        UpdateGlobal, VisualTestContext, px,
 8473    };
 8474    use project::{Project, ProjectEntryId};
 8475    use serde_json::json;
 8476    use settings::SettingsStore;
 8477    use util::rel_path::rel_path;
 8478
 8479    #[gpui::test]
 8480    async fn test_tab_disambiguation(cx: &mut TestAppContext) {
 8481        init_test(cx);
 8482
 8483        let fs = FakeFs::new(cx.executor());
 8484        let project = Project::test(fs, [], cx).await;
 8485        let (workspace, cx) =
 8486            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8487
 8488        // Adding an item with no ambiguity renders the tab without detail.
 8489        let item1 = cx.new(|cx| {
 8490            let mut item = TestItem::new(cx);
 8491            item.tab_descriptions = Some(vec!["c", "b1/c", "a/b1/c"]);
 8492            item
 8493        });
 8494        workspace.update_in(cx, |workspace, window, cx| {
 8495            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 8496        });
 8497        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(0)));
 8498
 8499        // Adding an item that creates ambiguity increases the level of detail on
 8500        // both tabs.
 8501        let item2 = cx.new_window_entity(|_window, cx| {
 8502            let mut item = TestItem::new(cx);
 8503            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 8504            item
 8505        });
 8506        workspace.update_in(cx, |workspace, window, cx| {
 8507            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 8508        });
 8509        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 8510        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 8511
 8512        // Adding an item that creates ambiguity increases the level of detail only
 8513        // on the ambiguous tabs. In this case, the ambiguity can't be resolved so
 8514        // we stop at the highest detail available.
 8515        let item3 = cx.new(|cx| {
 8516            let mut item = TestItem::new(cx);
 8517            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 8518            item
 8519        });
 8520        workspace.update_in(cx, |workspace, window, cx| {
 8521            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 8522        });
 8523        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 8524        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 8525        item3.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 8526    }
 8527
 8528    #[gpui::test]
 8529    async fn test_tracking_active_path(cx: &mut TestAppContext) {
 8530        init_test(cx);
 8531
 8532        let fs = FakeFs::new(cx.executor());
 8533        fs.insert_tree(
 8534            "/root1",
 8535            json!({
 8536                "one.txt": "",
 8537                "two.txt": "",
 8538            }),
 8539        )
 8540        .await;
 8541        fs.insert_tree(
 8542            "/root2",
 8543            json!({
 8544                "three.txt": "",
 8545            }),
 8546        )
 8547        .await;
 8548
 8549        let project = Project::test(fs, ["root1".as_ref()], cx).await;
 8550        let (workspace, cx) =
 8551            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8552        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 8553        let worktree_id = project.update(cx, |project, cx| {
 8554            project.worktrees(cx).next().unwrap().read(cx).id()
 8555        });
 8556
 8557        let item1 = cx.new(|cx| {
 8558            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
 8559        });
 8560        let item2 = cx.new(|cx| {
 8561            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "two.txt", cx)])
 8562        });
 8563
 8564        // Add an item to an empty pane
 8565        workspace.update_in(cx, |workspace, window, cx| {
 8566            workspace.add_item_to_active_pane(Box::new(item1), None, true, window, cx)
 8567        });
 8568        project.update(cx, |project, cx| {
 8569            assert_eq!(
 8570                project.active_entry(),
 8571                project
 8572                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
 8573                    .map(|e| e.id)
 8574            );
 8575        });
 8576        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 8577
 8578        // Add a second item to a non-empty pane
 8579        workspace.update_in(cx, |workspace, window, cx| {
 8580            workspace.add_item_to_active_pane(Box::new(item2), None, true, window, cx)
 8581        });
 8582        assert_eq!(cx.window_title().as_deref(), Some("root1 — two.txt"));
 8583        project.update(cx, |project, cx| {
 8584            assert_eq!(
 8585                project.active_entry(),
 8586                project
 8587                    .entry_for_path(&(worktree_id, rel_path("two.txt")).into(), cx)
 8588                    .map(|e| e.id)
 8589            );
 8590        });
 8591
 8592        // Close the active item
 8593        pane.update_in(cx, |pane, window, cx| {
 8594            pane.close_active_item(&Default::default(), window, cx)
 8595        })
 8596        .await
 8597        .unwrap();
 8598        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 8599        project.update(cx, |project, cx| {
 8600            assert_eq!(
 8601                project.active_entry(),
 8602                project
 8603                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
 8604                    .map(|e| e.id)
 8605            );
 8606        });
 8607
 8608        // Add a project folder
 8609        project
 8610            .update(cx, |project, cx| {
 8611                project.find_or_create_worktree("root2", true, cx)
 8612            })
 8613            .await
 8614            .unwrap();
 8615        assert_eq!(cx.window_title().as_deref(), Some("root1, root2 — one.txt"));
 8616
 8617        // Remove a project folder
 8618        project.update(cx, |project, cx| project.remove_worktree(worktree_id, cx));
 8619        assert_eq!(cx.window_title().as_deref(), Some("root2 — one.txt"));
 8620    }
 8621
 8622    #[gpui::test]
 8623    async fn test_close_window(cx: &mut TestAppContext) {
 8624        init_test(cx);
 8625
 8626        let fs = FakeFs::new(cx.executor());
 8627        fs.insert_tree("/root", json!({ "one": "" })).await;
 8628
 8629        let project = Project::test(fs, ["root".as_ref()], cx).await;
 8630        let (workspace, cx) =
 8631            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8632
 8633        // When there are no dirty items, there's nothing to do.
 8634        let item1 = cx.new(TestItem::new);
 8635        workspace.update_in(cx, |w, window, cx| {
 8636            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx)
 8637        });
 8638        let task = workspace.update_in(cx, |w, window, cx| {
 8639            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 8640        });
 8641        assert!(task.await.unwrap());
 8642
 8643        // When there are dirty untitled items, prompt to save each one. If the user
 8644        // cancels any prompt, then abort.
 8645        let item2 = cx.new(|cx| TestItem::new(cx).with_dirty(true));
 8646        let item3 = cx.new(|cx| {
 8647            TestItem::new(cx)
 8648                .with_dirty(true)
 8649                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 8650        });
 8651        workspace.update_in(cx, |w, window, cx| {
 8652            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 8653            w.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 8654        });
 8655        let task = workspace.update_in(cx, |w, window, cx| {
 8656            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 8657        });
 8658        cx.executor().run_until_parked();
 8659        cx.simulate_prompt_answer("Cancel"); // cancel save all
 8660        cx.executor().run_until_parked();
 8661        assert!(!cx.has_pending_prompt());
 8662        assert!(!task.await.unwrap());
 8663    }
 8664
 8665    #[gpui::test]
 8666    async fn test_close_window_with_serializable_items(cx: &mut TestAppContext) {
 8667        init_test(cx);
 8668
 8669        // Register TestItem as a serializable item
 8670        cx.update(|cx| {
 8671            register_serializable_item::<TestItem>(cx);
 8672        });
 8673
 8674        let fs = FakeFs::new(cx.executor());
 8675        fs.insert_tree("/root", json!({ "one": "" })).await;
 8676
 8677        let project = Project::test(fs, ["root".as_ref()], cx).await;
 8678        let (workspace, cx) =
 8679            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8680
 8681        // When there are dirty untitled items, but they can serialize, then there is no prompt.
 8682        let item1 = cx.new(|cx| {
 8683            TestItem::new(cx)
 8684                .with_dirty(true)
 8685                .with_serialize(|| Some(Task::ready(Ok(()))))
 8686        });
 8687        let item2 = cx.new(|cx| {
 8688            TestItem::new(cx)
 8689                .with_dirty(true)
 8690                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 8691                .with_serialize(|| Some(Task::ready(Ok(()))))
 8692        });
 8693        workspace.update_in(cx, |w, window, cx| {
 8694            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 8695            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 8696        });
 8697        let task = workspace.update_in(cx, |w, window, cx| {
 8698            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 8699        });
 8700        assert!(task.await.unwrap());
 8701    }
 8702
 8703    #[gpui::test]
 8704    async fn test_close_pane_items(cx: &mut TestAppContext) {
 8705        init_test(cx);
 8706
 8707        let fs = FakeFs::new(cx.executor());
 8708
 8709        let project = Project::test(fs, None, cx).await;
 8710        let (workspace, cx) =
 8711            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8712
 8713        let item1 = cx.new(|cx| {
 8714            TestItem::new(cx)
 8715                .with_dirty(true)
 8716                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
 8717        });
 8718        let item2 = cx.new(|cx| {
 8719            TestItem::new(cx)
 8720                .with_dirty(true)
 8721                .with_conflict(true)
 8722                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
 8723        });
 8724        let item3 = cx.new(|cx| {
 8725            TestItem::new(cx)
 8726                .with_dirty(true)
 8727                .with_conflict(true)
 8728                .with_project_items(&[dirty_project_item(3, "3.txt", cx)])
 8729        });
 8730        let item4 = cx.new(|cx| {
 8731            TestItem::new(cx).with_dirty(true).with_project_items(&[{
 8732                let project_item = TestProjectItem::new_untitled(cx);
 8733                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 8734                project_item
 8735            }])
 8736        });
 8737        let pane = workspace.update_in(cx, |workspace, window, cx| {
 8738            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 8739            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 8740            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 8741            workspace.add_item_to_active_pane(Box::new(item4.clone()), None, true, window, cx);
 8742            workspace.active_pane().clone()
 8743        });
 8744
 8745        let close_items = pane.update_in(cx, |pane, window, cx| {
 8746            pane.activate_item(1, true, true, window, cx);
 8747            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 8748            let item1_id = item1.item_id();
 8749            let item3_id = item3.item_id();
 8750            let item4_id = item4.item_id();
 8751            pane.close_items(window, cx, SaveIntent::Close, move |id| {
 8752                [item1_id, item3_id, item4_id].contains(&id)
 8753            })
 8754        });
 8755        cx.executor().run_until_parked();
 8756
 8757        assert!(cx.has_pending_prompt());
 8758        cx.simulate_prompt_answer("Save all");
 8759
 8760        cx.executor().run_until_parked();
 8761
 8762        // Item 1 is saved. There's a prompt to save item 3.
 8763        pane.update(cx, |pane, cx| {
 8764            assert_eq!(item1.read(cx).save_count, 1);
 8765            assert_eq!(item1.read(cx).save_as_count, 0);
 8766            assert_eq!(item1.read(cx).reload_count, 0);
 8767            assert_eq!(pane.items_len(), 3);
 8768            assert_eq!(pane.active_item().unwrap().item_id(), item3.item_id());
 8769        });
 8770        assert!(cx.has_pending_prompt());
 8771
 8772        // Cancel saving item 3.
 8773        cx.simulate_prompt_answer("Discard");
 8774        cx.executor().run_until_parked();
 8775
 8776        // Item 3 is reloaded. There's a prompt to save item 4.
 8777        pane.update(cx, |pane, cx| {
 8778            assert_eq!(item3.read(cx).save_count, 0);
 8779            assert_eq!(item3.read(cx).save_as_count, 0);
 8780            assert_eq!(item3.read(cx).reload_count, 1);
 8781            assert_eq!(pane.items_len(), 2);
 8782            assert_eq!(pane.active_item().unwrap().item_id(), item4.item_id());
 8783        });
 8784
 8785        // There's a prompt for a path for item 4.
 8786        cx.simulate_new_path_selection(|_| Some(Default::default()));
 8787        close_items.await.unwrap();
 8788
 8789        // The requested items are closed.
 8790        pane.update(cx, |pane, cx| {
 8791            assert_eq!(item4.read(cx).save_count, 0);
 8792            assert_eq!(item4.read(cx).save_as_count, 1);
 8793            assert_eq!(item4.read(cx).reload_count, 0);
 8794            assert_eq!(pane.items_len(), 1);
 8795            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 8796        });
 8797    }
 8798
 8799    #[gpui::test]
 8800    async fn test_prompting_to_save_only_on_last_item_for_entry(cx: &mut TestAppContext) {
 8801        init_test(cx);
 8802
 8803        let fs = FakeFs::new(cx.executor());
 8804        let project = Project::test(fs, [], cx).await;
 8805        let (workspace, cx) =
 8806            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8807
 8808        // Create several workspace items with single project entries, and two
 8809        // workspace items with multiple project entries.
 8810        let single_entry_items = (0..=4)
 8811            .map(|project_entry_id| {
 8812                cx.new(|cx| {
 8813                    TestItem::new(cx)
 8814                        .with_dirty(true)
 8815                        .with_project_items(&[dirty_project_item(
 8816                            project_entry_id,
 8817                            &format!("{project_entry_id}.txt"),
 8818                            cx,
 8819                        )])
 8820                })
 8821            })
 8822            .collect::<Vec<_>>();
 8823        let item_2_3 = cx.new(|cx| {
 8824            TestItem::new(cx)
 8825                .with_dirty(true)
 8826                .with_buffer_kind(ItemBufferKind::Multibuffer)
 8827                .with_project_items(&[
 8828                    single_entry_items[2].read(cx).project_items[0].clone(),
 8829                    single_entry_items[3].read(cx).project_items[0].clone(),
 8830                ])
 8831        });
 8832        let item_3_4 = cx.new(|cx| {
 8833            TestItem::new(cx)
 8834                .with_dirty(true)
 8835                .with_buffer_kind(ItemBufferKind::Multibuffer)
 8836                .with_project_items(&[
 8837                    single_entry_items[3].read(cx).project_items[0].clone(),
 8838                    single_entry_items[4].read(cx).project_items[0].clone(),
 8839                ])
 8840        });
 8841
 8842        // Create two panes that contain the following project entries:
 8843        //   left pane:
 8844        //     multi-entry items:   (2, 3)
 8845        //     single-entry items:  0, 2, 3, 4
 8846        //   right pane:
 8847        //     single-entry items:  4, 1
 8848        //     multi-entry items:   (3, 4)
 8849        let (left_pane, right_pane) = workspace.update_in(cx, |workspace, window, cx| {
 8850            let left_pane = workspace.active_pane().clone();
 8851            workspace.add_item_to_active_pane(Box::new(item_2_3.clone()), None, true, window, cx);
 8852            workspace.add_item_to_active_pane(
 8853                single_entry_items[0].boxed_clone(),
 8854                None,
 8855                true,
 8856                window,
 8857                cx,
 8858            );
 8859            workspace.add_item_to_active_pane(
 8860                single_entry_items[2].boxed_clone(),
 8861                None,
 8862                true,
 8863                window,
 8864                cx,
 8865            );
 8866            workspace.add_item_to_active_pane(
 8867                single_entry_items[3].boxed_clone(),
 8868                None,
 8869                true,
 8870                window,
 8871                cx,
 8872            );
 8873            workspace.add_item_to_active_pane(
 8874                single_entry_items[4].boxed_clone(),
 8875                None,
 8876                true,
 8877                window,
 8878                cx,
 8879            );
 8880
 8881            let right_pane =
 8882                workspace.split_and_clone(left_pane.clone(), SplitDirection::Right, window, cx);
 8883
 8884            let boxed_clone = single_entry_items[1].boxed_clone();
 8885            let right_pane = window.spawn(cx, async move |cx| {
 8886                right_pane.await.inspect(|right_pane| {
 8887                    right_pane
 8888                        .update_in(cx, |pane, window, cx| {
 8889                            pane.add_item(boxed_clone, true, true, None, window, cx);
 8890                            pane.add_item(Box::new(item_3_4.clone()), true, true, None, window, cx);
 8891                        })
 8892                        .unwrap();
 8893                })
 8894            });
 8895
 8896            (left_pane, right_pane)
 8897        });
 8898        let right_pane = right_pane.await.unwrap();
 8899        cx.focus(&right_pane);
 8900
 8901        let mut close = right_pane.update_in(cx, |pane, window, cx| {
 8902            pane.close_all_items(&CloseAllItems::default(), window, cx)
 8903                .unwrap()
 8904        });
 8905        cx.executor().run_until_parked();
 8906
 8907        let msg = cx.pending_prompt().unwrap().0;
 8908        assert!(msg.contains("1.txt"));
 8909        assert!(!msg.contains("2.txt"));
 8910        assert!(!msg.contains("3.txt"));
 8911        assert!(!msg.contains("4.txt"));
 8912
 8913        cx.simulate_prompt_answer("Cancel");
 8914        close.await;
 8915
 8916        left_pane
 8917            .update_in(cx, |left_pane, window, cx| {
 8918                left_pane.close_item_by_id(
 8919                    single_entry_items[3].entity_id(),
 8920                    SaveIntent::Skip,
 8921                    window,
 8922                    cx,
 8923                )
 8924            })
 8925            .await
 8926            .unwrap();
 8927
 8928        close = right_pane.update_in(cx, |pane, window, cx| {
 8929            pane.close_all_items(&CloseAllItems::default(), window, cx)
 8930                .unwrap()
 8931        });
 8932        cx.executor().run_until_parked();
 8933
 8934        let details = cx.pending_prompt().unwrap().1;
 8935        assert!(details.contains("1.txt"));
 8936        assert!(!details.contains("2.txt"));
 8937        assert!(details.contains("3.txt"));
 8938        // ideally this assertion could be made, but today we can only
 8939        // save whole items not project items, so the orphaned item 3 causes
 8940        // 4 to be saved too.
 8941        // assert!(!details.contains("4.txt"));
 8942
 8943        cx.simulate_prompt_answer("Save all");
 8944
 8945        cx.executor().run_until_parked();
 8946        close.await;
 8947        right_pane.read_with(cx, |pane, _| {
 8948            assert_eq!(pane.items_len(), 0);
 8949        });
 8950    }
 8951
 8952    #[gpui::test]
 8953    async fn test_autosave(cx: &mut gpui::TestAppContext) {
 8954        init_test(cx);
 8955
 8956        let fs = FakeFs::new(cx.executor());
 8957        let project = Project::test(fs, [], cx).await;
 8958        let (workspace, cx) =
 8959            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8960        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 8961
 8962        let item = cx.new(|cx| {
 8963            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 8964        });
 8965        let item_id = item.entity_id();
 8966        workspace.update_in(cx, |workspace, window, cx| {
 8967            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 8968        });
 8969
 8970        // Autosave on window change.
 8971        item.update(cx, |item, cx| {
 8972            SettingsStore::update_global(cx, |settings, cx| {
 8973                settings.update_user_settings(cx, |settings| {
 8974                    settings.workspace.autosave = Some(AutosaveSetting::OnWindowChange);
 8975                })
 8976            });
 8977            item.is_dirty = true;
 8978        });
 8979
 8980        // Deactivating the window saves the file.
 8981        cx.deactivate_window();
 8982        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 8983
 8984        // Re-activating the window doesn't save the file.
 8985        cx.update(|window, _| window.activate_window());
 8986        cx.executor().run_until_parked();
 8987        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 8988
 8989        // Autosave on focus change.
 8990        item.update_in(cx, |item, window, cx| {
 8991            cx.focus_self(window);
 8992            SettingsStore::update_global(cx, |settings, cx| {
 8993                settings.update_user_settings(cx, |settings| {
 8994                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
 8995                })
 8996            });
 8997            item.is_dirty = true;
 8998        });
 8999        // Blurring the item saves the file.
 9000        item.update_in(cx, |_, window, _| window.blur());
 9001        cx.executor().run_until_parked();
 9002        item.read_with(cx, |item, _| assert_eq!(item.save_count, 2));
 9003
 9004        // Deactivating the window still saves the file.
 9005        item.update_in(cx, |item, window, cx| {
 9006            cx.focus_self(window);
 9007            item.is_dirty = true;
 9008        });
 9009        cx.deactivate_window();
 9010        item.update(cx, |item, _| assert_eq!(item.save_count, 3));
 9011
 9012        // Autosave after delay.
 9013        item.update(cx, |item, cx| {
 9014            SettingsStore::update_global(cx, |settings, cx| {
 9015                settings.update_user_settings(cx, |settings| {
 9016                    settings.workspace.autosave = Some(AutosaveSetting::AfterDelay {
 9017                        milliseconds: 500.into(),
 9018                    });
 9019                })
 9020            });
 9021            item.is_dirty = true;
 9022            cx.emit(ItemEvent::Edit);
 9023        });
 9024
 9025        // Delay hasn't fully expired, so the file is still dirty and unsaved.
 9026        cx.executor().advance_clock(Duration::from_millis(250));
 9027        item.read_with(cx, |item, _| assert_eq!(item.save_count, 3));
 9028
 9029        // After delay expires, the file is saved.
 9030        cx.executor().advance_clock(Duration::from_millis(250));
 9031        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
 9032
 9033        // Autosave after delay, should save earlier than delay if tab is closed
 9034        item.update(cx, |item, cx| {
 9035            item.is_dirty = true;
 9036            cx.emit(ItemEvent::Edit);
 9037        });
 9038        cx.executor().advance_clock(Duration::from_millis(250));
 9039        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
 9040
 9041        // // Ensure auto save with delay saves the item on close, even if the timer hasn't yet run out.
 9042        pane.update_in(cx, |pane, window, cx| {
 9043            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9044        })
 9045        .await
 9046        .unwrap();
 9047        assert!(!cx.has_pending_prompt());
 9048        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 9049
 9050        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
 9051        workspace.update_in(cx, |workspace, window, cx| {
 9052            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9053        });
 9054        item.update_in(cx, |item, _window, cx| {
 9055            item.is_dirty = true;
 9056            for project_item in &mut item.project_items {
 9057                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9058            }
 9059        });
 9060        cx.run_until_parked();
 9061        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 9062
 9063        // Autosave on focus change, ensuring closing the tab counts as such.
 9064        item.update(cx, |item, cx| {
 9065            SettingsStore::update_global(cx, |settings, cx| {
 9066                settings.update_user_settings(cx, |settings| {
 9067                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
 9068                })
 9069            });
 9070            item.is_dirty = true;
 9071            for project_item in &mut item.project_items {
 9072                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9073            }
 9074        });
 9075
 9076        pane.update_in(cx, |pane, window, cx| {
 9077            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9078        })
 9079        .await
 9080        .unwrap();
 9081        assert!(!cx.has_pending_prompt());
 9082        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9083
 9084        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
 9085        workspace.update_in(cx, |workspace, window, cx| {
 9086            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9087        });
 9088        item.update_in(cx, |item, window, cx| {
 9089            item.project_items[0].update(cx, |item, _| {
 9090                item.entry_id = None;
 9091            });
 9092            item.is_dirty = true;
 9093            window.blur();
 9094        });
 9095        cx.run_until_parked();
 9096        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9097
 9098        // Ensure autosave is prevented for deleted files also when closing the buffer.
 9099        let _close_items = pane.update_in(cx, |pane, window, cx| {
 9100            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9101        });
 9102        cx.run_until_parked();
 9103        assert!(cx.has_pending_prompt());
 9104        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9105    }
 9106
 9107    #[gpui::test]
 9108    async fn test_pane_navigation(cx: &mut gpui::TestAppContext) {
 9109        init_test(cx);
 9110
 9111        let fs = FakeFs::new(cx.executor());
 9112
 9113        let project = Project::test(fs, [], cx).await;
 9114        let (workspace, cx) =
 9115            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9116
 9117        let item = cx.new(|cx| {
 9118            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9119        });
 9120        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9121        let toolbar = pane.read_with(cx, |pane, _| pane.toolbar().clone());
 9122        let toolbar_notify_count = Rc::new(RefCell::new(0));
 9123
 9124        workspace.update_in(cx, |workspace, window, cx| {
 9125            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9126            let toolbar_notification_count = toolbar_notify_count.clone();
 9127            cx.observe_in(&toolbar, window, move |_, _, _, _| {
 9128                *toolbar_notification_count.borrow_mut() += 1
 9129            })
 9130            .detach();
 9131        });
 9132
 9133        pane.read_with(cx, |pane, _| {
 9134            assert!(!pane.can_navigate_backward());
 9135            assert!(!pane.can_navigate_forward());
 9136        });
 9137
 9138        item.update_in(cx, |item, _, cx| {
 9139            item.set_state("one".to_string(), cx);
 9140        });
 9141
 9142        // Toolbar must be notified to re-render the navigation buttons
 9143        assert_eq!(*toolbar_notify_count.borrow(), 1);
 9144
 9145        pane.read_with(cx, |pane, _| {
 9146            assert!(pane.can_navigate_backward());
 9147            assert!(!pane.can_navigate_forward());
 9148        });
 9149
 9150        workspace
 9151            .update_in(cx, |workspace, window, cx| {
 9152                workspace.go_back(pane.downgrade(), window, cx)
 9153            })
 9154            .await
 9155            .unwrap();
 9156
 9157        assert_eq!(*toolbar_notify_count.borrow(), 2);
 9158        pane.read_with(cx, |pane, _| {
 9159            assert!(!pane.can_navigate_backward());
 9160            assert!(pane.can_navigate_forward());
 9161        });
 9162    }
 9163
 9164    #[gpui::test]
 9165    async fn test_toggle_docks_and_panels(cx: &mut gpui::TestAppContext) {
 9166        init_test(cx);
 9167        let fs = FakeFs::new(cx.executor());
 9168
 9169        let project = Project::test(fs, [], cx).await;
 9170        let (workspace, cx) =
 9171            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9172
 9173        let panel = workspace.update_in(cx, |workspace, window, cx| {
 9174            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, cx));
 9175            workspace.add_panel(panel.clone(), window, cx);
 9176
 9177            workspace
 9178                .right_dock()
 9179                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
 9180
 9181            panel
 9182        });
 9183
 9184        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9185        pane.update_in(cx, |pane, window, cx| {
 9186            let item = cx.new(TestItem::new);
 9187            pane.add_item(Box::new(item), true, true, None, window, cx);
 9188        });
 9189
 9190        // Transfer focus from center to panel
 9191        workspace.update_in(cx, |workspace, window, cx| {
 9192            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9193        });
 9194
 9195        workspace.update_in(cx, |workspace, window, cx| {
 9196            assert!(workspace.right_dock().read(cx).is_open());
 9197            assert!(!panel.is_zoomed(window, cx));
 9198            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9199        });
 9200
 9201        // Transfer focus from panel to center
 9202        workspace.update_in(cx, |workspace, window, cx| {
 9203            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9204        });
 9205
 9206        workspace.update_in(cx, |workspace, window, cx| {
 9207            assert!(workspace.right_dock().read(cx).is_open());
 9208            assert!(!panel.is_zoomed(window, cx));
 9209            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9210        });
 9211
 9212        // Close the dock
 9213        workspace.update_in(cx, |workspace, window, cx| {
 9214            workspace.toggle_dock(DockPosition::Right, window, cx);
 9215        });
 9216
 9217        workspace.update_in(cx, |workspace, window, cx| {
 9218            assert!(!workspace.right_dock().read(cx).is_open());
 9219            assert!(!panel.is_zoomed(window, cx));
 9220            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9221        });
 9222
 9223        // Open the dock
 9224        workspace.update_in(cx, |workspace, window, cx| {
 9225            workspace.toggle_dock(DockPosition::Right, window, cx);
 9226        });
 9227
 9228        workspace.update_in(cx, |workspace, window, cx| {
 9229            assert!(workspace.right_dock().read(cx).is_open());
 9230            assert!(!panel.is_zoomed(window, cx));
 9231            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9232        });
 9233
 9234        // Focus and zoom panel
 9235        panel.update_in(cx, |panel, window, cx| {
 9236            cx.focus_self(window);
 9237            panel.set_zoomed(true, window, cx)
 9238        });
 9239
 9240        workspace.update_in(cx, |workspace, window, cx| {
 9241            assert!(workspace.right_dock().read(cx).is_open());
 9242            assert!(panel.is_zoomed(window, cx));
 9243            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9244        });
 9245
 9246        // Transfer focus to the center closes the dock
 9247        workspace.update_in(cx, |workspace, window, cx| {
 9248            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9249        });
 9250
 9251        workspace.update_in(cx, |workspace, window, cx| {
 9252            assert!(!workspace.right_dock().read(cx).is_open());
 9253            assert!(panel.is_zoomed(window, cx));
 9254            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9255        });
 9256
 9257        // Transferring focus back to the panel keeps it zoomed
 9258        workspace.update_in(cx, |workspace, window, cx| {
 9259            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9260        });
 9261
 9262        workspace.update_in(cx, |workspace, window, cx| {
 9263            assert!(workspace.right_dock().read(cx).is_open());
 9264            assert!(panel.is_zoomed(window, cx));
 9265            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9266        });
 9267
 9268        // Close the dock while it is zoomed
 9269        workspace.update_in(cx, |workspace, window, cx| {
 9270            workspace.toggle_dock(DockPosition::Right, window, cx)
 9271        });
 9272
 9273        workspace.update_in(cx, |workspace, window, cx| {
 9274            assert!(!workspace.right_dock().read(cx).is_open());
 9275            assert!(panel.is_zoomed(window, cx));
 9276            assert!(workspace.zoomed.is_none());
 9277            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9278        });
 9279
 9280        // Opening the dock, when it's zoomed, retains focus
 9281        workspace.update_in(cx, |workspace, window, cx| {
 9282            workspace.toggle_dock(DockPosition::Right, window, cx)
 9283        });
 9284
 9285        workspace.update_in(cx, |workspace, window, cx| {
 9286            assert!(workspace.right_dock().read(cx).is_open());
 9287            assert!(panel.is_zoomed(window, cx));
 9288            assert!(workspace.zoomed.is_some());
 9289            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9290        });
 9291
 9292        // Unzoom and close the panel, zoom the active pane.
 9293        panel.update_in(cx, |panel, window, cx| panel.set_zoomed(false, window, cx));
 9294        workspace.update_in(cx, |workspace, window, cx| {
 9295            workspace.toggle_dock(DockPosition::Right, window, cx)
 9296        });
 9297        pane.update_in(cx, |pane, window, cx| {
 9298            pane.toggle_zoom(&Default::default(), window, cx)
 9299        });
 9300
 9301        // Opening a dock unzooms the pane.
 9302        workspace.update_in(cx, |workspace, window, cx| {
 9303            workspace.toggle_dock(DockPosition::Right, window, cx)
 9304        });
 9305        workspace.update_in(cx, |workspace, window, cx| {
 9306            let pane = pane.read(cx);
 9307            assert!(!pane.is_zoomed());
 9308            assert!(!pane.focus_handle(cx).is_focused(window));
 9309            assert!(workspace.right_dock().read(cx).is_open());
 9310            assert!(workspace.zoomed.is_none());
 9311        });
 9312    }
 9313
 9314    #[gpui::test]
 9315    async fn test_toggle_all_docks(cx: &mut gpui::TestAppContext) {
 9316        init_test(cx);
 9317        let fs = FakeFs::new(cx.executor());
 9318
 9319        let project = Project::test(fs, [], cx).await;
 9320        let (workspace, cx) =
 9321            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9322        workspace.update_in(cx, |workspace, window, cx| {
 9323            // Open two docks
 9324            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9325            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9326
 9327            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9328            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9329
 9330            assert!(left_dock.read(cx).is_open());
 9331            assert!(right_dock.read(cx).is_open());
 9332        });
 9333
 9334        workspace.update_in(cx, |workspace, window, cx| {
 9335            // Toggle all docks - should close both
 9336            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9337
 9338            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9339            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9340            assert!(!left_dock.read(cx).is_open());
 9341            assert!(!right_dock.read(cx).is_open());
 9342        });
 9343
 9344        workspace.update_in(cx, |workspace, window, cx| {
 9345            // Toggle again - should reopen both
 9346            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9347
 9348            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9349            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9350            assert!(left_dock.read(cx).is_open());
 9351            assert!(right_dock.read(cx).is_open());
 9352        });
 9353    }
 9354
 9355    #[gpui::test]
 9356    async fn test_toggle_all_with_manual_close(cx: &mut gpui::TestAppContext) {
 9357        init_test(cx);
 9358        let fs = FakeFs::new(cx.executor());
 9359
 9360        let project = Project::test(fs, [], cx).await;
 9361        let (workspace, cx) =
 9362            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9363        workspace.update_in(cx, |workspace, window, cx| {
 9364            // Open two docks
 9365            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9366            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9367
 9368            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9369            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9370
 9371            assert!(left_dock.read(cx).is_open());
 9372            assert!(right_dock.read(cx).is_open());
 9373        });
 9374
 9375        workspace.update_in(cx, |workspace, window, cx| {
 9376            // Close them manually
 9377            workspace.toggle_dock(DockPosition::Left, window, cx);
 9378            workspace.toggle_dock(DockPosition::Right, window, cx);
 9379
 9380            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9381            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9382            assert!(!left_dock.read(cx).is_open());
 9383            assert!(!right_dock.read(cx).is_open());
 9384        });
 9385
 9386        workspace.update_in(cx, |workspace, window, cx| {
 9387            // Toggle all docks - only last closed (right dock) should reopen
 9388            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9389
 9390            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9391            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9392            assert!(!left_dock.read(cx).is_open());
 9393            assert!(right_dock.read(cx).is_open());
 9394        });
 9395    }
 9396
 9397    #[gpui::test]
 9398    async fn test_toggle_all_docks_after_dock_move(cx: &mut gpui::TestAppContext) {
 9399        init_test(cx);
 9400        let fs = FakeFs::new(cx.executor());
 9401        let project = Project::test(fs, [], cx).await;
 9402        let (workspace, cx) =
 9403            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9404
 9405        // Open two docks (left and right) with one panel each
 9406        let (left_panel, right_panel) = workspace.update_in(cx, |workspace, window, cx| {
 9407            let left_panel = cx.new(|cx| TestPanel::new(DockPosition::Left, cx));
 9408            workspace.add_panel(left_panel.clone(), window, cx);
 9409
 9410            let right_panel = cx.new(|cx| TestPanel::new(DockPosition::Right, cx));
 9411            workspace.add_panel(right_panel.clone(), window, cx);
 9412
 9413            workspace.toggle_dock(DockPosition::Left, window, cx);
 9414            workspace.toggle_dock(DockPosition::Right, window, cx);
 9415
 9416            // Verify initial state
 9417            assert!(
 9418                workspace.left_dock().read(cx).is_open(),
 9419                "Left dock should be open"
 9420            );
 9421            assert_eq!(
 9422                workspace
 9423                    .left_dock()
 9424                    .read(cx)
 9425                    .visible_panel()
 9426                    .unwrap()
 9427                    .panel_id(),
 9428                left_panel.panel_id(),
 9429                "Left panel should be visible in left dock"
 9430            );
 9431            assert!(
 9432                workspace.right_dock().read(cx).is_open(),
 9433                "Right dock should be open"
 9434            );
 9435            assert_eq!(
 9436                workspace
 9437                    .right_dock()
 9438                    .read(cx)
 9439                    .visible_panel()
 9440                    .unwrap()
 9441                    .panel_id(),
 9442                right_panel.panel_id(),
 9443                "Right panel should be visible in right dock"
 9444            );
 9445            assert!(
 9446                !workspace.bottom_dock().read(cx).is_open(),
 9447                "Bottom dock should be closed"
 9448            );
 9449
 9450            (left_panel, right_panel)
 9451        });
 9452
 9453        // Focus the left panel and move it to the next position (bottom dock)
 9454        workspace.update_in(cx, |workspace, window, cx| {
 9455            workspace.toggle_panel_focus::<TestPanel>(window, cx); // Focus left panel
 9456            assert!(
 9457                left_panel.read(cx).focus_handle(cx).is_focused(window),
 9458                "Left panel should be focused"
 9459            );
 9460        });
 9461
 9462        cx.dispatch_action(MoveFocusedPanelToNextPosition);
 9463
 9464        // Verify the left panel has moved to the bottom dock, and the bottom dock is now open
 9465        workspace.update(cx, |workspace, cx| {
 9466            assert!(
 9467                !workspace.left_dock().read(cx).is_open(),
 9468                "Left dock should be closed"
 9469            );
 9470            assert!(
 9471                workspace.bottom_dock().read(cx).is_open(),
 9472                "Bottom dock should now be open"
 9473            );
 9474            assert_eq!(
 9475                left_panel.read(cx).position,
 9476                DockPosition::Bottom,
 9477                "Left panel should now be in the bottom dock"
 9478            );
 9479            assert_eq!(
 9480                workspace
 9481                    .bottom_dock()
 9482                    .read(cx)
 9483                    .visible_panel()
 9484                    .unwrap()
 9485                    .panel_id(),
 9486                left_panel.panel_id(),
 9487                "Left panel should be the visible panel in the bottom dock"
 9488            );
 9489        });
 9490
 9491        // Toggle all docks off
 9492        workspace.update_in(cx, |workspace, window, cx| {
 9493            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9494            assert!(
 9495                !workspace.left_dock().read(cx).is_open(),
 9496                "Left dock should be closed"
 9497            );
 9498            assert!(
 9499                !workspace.right_dock().read(cx).is_open(),
 9500                "Right dock should be closed"
 9501            );
 9502            assert!(
 9503                !workspace.bottom_dock().read(cx).is_open(),
 9504                "Bottom dock should be closed"
 9505            );
 9506        });
 9507
 9508        // Toggle all docks back on and verify positions are restored
 9509        workspace.update_in(cx, |workspace, window, cx| {
 9510            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9511            assert!(
 9512                !workspace.left_dock().read(cx).is_open(),
 9513                "Left dock should remain closed"
 9514            );
 9515            assert!(
 9516                workspace.right_dock().read(cx).is_open(),
 9517                "Right dock should remain open"
 9518            );
 9519            assert!(
 9520                workspace.bottom_dock().read(cx).is_open(),
 9521                "Bottom dock should remain open"
 9522            );
 9523            assert_eq!(
 9524                left_panel.read(cx).position,
 9525                DockPosition::Bottom,
 9526                "Left panel should remain in the bottom dock"
 9527            );
 9528            assert_eq!(
 9529                right_panel.read(cx).position,
 9530                DockPosition::Right,
 9531                "Right panel should remain in the right dock"
 9532            );
 9533            assert_eq!(
 9534                workspace
 9535                    .bottom_dock()
 9536                    .read(cx)
 9537                    .visible_panel()
 9538                    .unwrap()
 9539                    .panel_id(),
 9540                left_panel.panel_id(),
 9541                "Left panel should be the visible panel in the right dock"
 9542            );
 9543        });
 9544    }
 9545
 9546    #[gpui::test]
 9547    async fn test_join_pane_into_next(cx: &mut gpui::TestAppContext) {
 9548        init_test(cx);
 9549
 9550        let fs = FakeFs::new(cx.executor());
 9551
 9552        let project = Project::test(fs, None, cx).await;
 9553        let (workspace, cx) =
 9554            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9555
 9556        // Let's arrange the panes like this:
 9557        //
 9558        // +-----------------------+
 9559        // |         top           |
 9560        // +------+--------+-------+
 9561        // | left | center | right |
 9562        // +------+--------+-------+
 9563        // |        bottom         |
 9564        // +-----------------------+
 9565
 9566        let top_item = cx.new(|cx| {
 9567            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "top.txt", cx)])
 9568        });
 9569        let bottom_item = cx.new(|cx| {
 9570            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "bottom.txt", cx)])
 9571        });
 9572        let left_item = cx.new(|cx| {
 9573            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "left.txt", cx)])
 9574        });
 9575        let right_item = cx.new(|cx| {
 9576            TestItem::new(cx).with_project_items(&[TestProjectItem::new(4, "right.txt", cx)])
 9577        });
 9578        let center_item = cx.new(|cx| {
 9579            TestItem::new(cx).with_project_items(&[TestProjectItem::new(5, "center.txt", cx)])
 9580        });
 9581
 9582        let top_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 9583            let top_pane_id = workspace.active_pane().entity_id();
 9584            workspace.add_item_to_active_pane(Box::new(top_item.clone()), None, false, window, cx);
 9585            workspace.split_pane(
 9586                workspace.active_pane().clone(),
 9587                SplitDirection::Down,
 9588                window,
 9589                cx,
 9590            );
 9591            top_pane_id
 9592        });
 9593        let bottom_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 9594            let bottom_pane_id = workspace.active_pane().entity_id();
 9595            workspace.add_item_to_active_pane(
 9596                Box::new(bottom_item.clone()),
 9597                None,
 9598                false,
 9599                window,
 9600                cx,
 9601            );
 9602            workspace.split_pane(
 9603                workspace.active_pane().clone(),
 9604                SplitDirection::Up,
 9605                window,
 9606                cx,
 9607            );
 9608            bottom_pane_id
 9609        });
 9610        let left_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 9611            let left_pane_id = workspace.active_pane().entity_id();
 9612            workspace.add_item_to_active_pane(Box::new(left_item.clone()), None, false, window, cx);
 9613            workspace.split_pane(
 9614                workspace.active_pane().clone(),
 9615                SplitDirection::Right,
 9616                window,
 9617                cx,
 9618            );
 9619            left_pane_id
 9620        });
 9621        let right_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 9622            let right_pane_id = workspace.active_pane().entity_id();
 9623            workspace.add_item_to_active_pane(
 9624                Box::new(right_item.clone()),
 9625                None,
 9626                false,
 9627                window,
 9628                cx,
 9629            );
 9630            workspace.split_pane(
 9631                workspace.active_pane().clone(),
 9632                SplitDirection::Left,
 9633                window,
 9634                cx,
 9635            );
 9636            right_pane_id
 9637        });
 9638        let center_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 9639            let center_pane_id = workspace.active_pane().entity_id();
 9640            workspace.add_item_to_active_pane(
 9641                Box::new(center_item.clone()),
 9642                None,
 9643                false,
 9644                window,
 9645                cx,
 9646            );
 9647            center_pane_id
 9648        });
 9649        cx.executor().run_until_parked();
 9650
 9651        workspace.update_in(cx, |workspace, window, cx| {
 9652            assert_eq!(center_pane_id, workspace.active_pane().entity_id());
 9653
 9654            // Join into next from center pane into right
 9655            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 9656        });
 9657
 9658        workspace.update_in(cx, |workspace, window, cx| {
 9659            let active_pane = workspace.active_pane();
 9660            assert_eq!(right_pane_id, active_pane.entity_id());
 9661            assert_eq!(2, active_pane.read(cx).items_len());
 9662            let item_ids_in_pane =
 9663                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 9664            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 9665            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 9666
 9667            // Join into next from right pane into bottom
 9668            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 9669        });
 9670
 9671        workspace.update_in(cx, |workspace, window, cx| {
 9672            let active_pane = workspace.active_pane();
 9673            assert_eq!(bottom_pane_id, active_pane.entity_id());
 9674            assert_eq!(3, active_pane.read(cx).items_len());
 9675            let item_ids_in_pane =
 9676                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 9677            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 9678            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 9679            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
 9680
 9681            // Join into next from bottom pane into left
 9682            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 9683        });
 9684
 9685        workspace.update_in(cx, |workspace, window, cx| {
 9686            let active_pane = workspace.active_pane();
 9687            assert_eq!(left_pane_id, active_pane.entity_id());
 9688            assert_eq!(4, active_pane.read(cx).items_len());
 9689            let item_ids_in_pane =
 9690                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 9691            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 9692            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 9693            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
 9694            assert!(item_ids_in_pane.contains(&left_item.item_id()));
 9695
 9696            // Join into next from left pane into top
 9697            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 9698        });
 9699
 9700        workspace.update_in(cx, |workspace, window, cx| {
 9701            let active_pane = workspace.active_pane();
 9702            assert_eq!(top_pane_id, active_pane.entity_id());
 9703            assert_eq!(5, active_pane.read(cx).items_len());
 9704            let item_ids_in_pane =
 9705                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 9706            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 9707            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 9708            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
 9709            assert!(item_ids_in_pane.contains(&left_item.item_id()));
 9710            assert!(item_ids_in_pane.contains(&top_item.item_id()));
 9711
 9712            // Single pane left: no-op
 9713            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx)
 9714        });
 9715
 9716        workspace.update(cx, |workspace, _cx| {
 9717            let active_pane = workspace.active_pane();
 9718            assert_eq!(top_pane_id, active_pane.entity_id());
 9719        });
 9720    }
 9721
 9722    fn add_an_item_to_active_pane(
 9723        cx: &mut VisualTestContext,
 9724        workspace: &Entity<Workspace>,
 9725        item_id: u64,
 9726    ) -> Entity<TestItem> {
 9727        let item = cx.new(|cx| {
 9728            TestItem::new(cx).with_project_items(&[TestProjectItem::new(
 9729                item_id,
 9730                "item{item_id}.txt",
 9731                cx,
 9732            )])
 9733        });
 9734        workspace.update_in(cx, |workspace, window, cx| {
 9735            workspace.add_item_to_active_pane(Box::new(item.clone()), None, false, window, cx);
 9736        });
 9737        item
 9738    }
 9739
 9740    fn split_pane(cx: &mut VisualTestContext, workspace: &Entity<Workspace>) -> Entity<Pane> {
 9741        workspace.update_in(cx, |workspace, window, cx| {
 9742            workspace.split_pane(
 9743                workspace.active_pane().clone(),
 9744                SplitDirection::Right,
 9745                window,
 9746                cx,
 9747            )
 9748        })
 9749    }
 9750
 9751    #[gpui::test]
 9752    async fn test_join_all_panes(cx: &mut gpui::TestAppContext) {
 9753        init_test(cx);
 9754        let fs = FakeFs::new(cx.executor());
 9755        let project = Project::test(fs, None, cx).await;
 9756        let (workspace, cx) =
 9757            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9758
 9759        add_an_item_to_active_pane(cx, &workspace, 1);
 9760        split_pane(cx, &workspace);
 9761        add_an_item_to_active_pane(cx, &workspace, 2);
 9762        split_pane(cx, &workspace); // empty pane
 9763        split_pane(cx, &workspace);
 9764        let last_item = add_an_item_to_active_pane(cx, &workspace, 3);
 9765
 9766        cx.executor().run_until_parked();
 9767
 9768        workspace.update(cx, |workspace, cx| {
 9769            let num_panes = workspace.panes().len();
 9770            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
 9771            let active_item = workspace
 9772                .active_pane()
 9773                .read(cx)
 9774                .active_item()
 9775                .expect("item is in focus");
 9776
 9777            assert_eq!(num_panes, 4);
 9778            assert_eq!(num_items_in_current_pane, 1);
 9779            assert_eq!(active_item.item_id(), last_item.item_id());
 9780        });
 9781
 9782        workspace.update_in(cx, |workspace, window, cx| {
 9783            workspace.join_all_panes(window, cx);
 9784        });
 9785
 9786        workspace.update(cx, |workspace, cx| {
 9787            let num_panes = workspace.panes().len();
 9788            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
 9789            let active_item = workspace
 9790                .active_pane()
 9791                .read(cx)
 9792                .active_item()
 9793                .expect("item is in focus");
 9794
 9795            assert_eq!(num_panes, 1);
 9796            assert_eq!(num_items_in_current_pane, 3);
 9797            assert_eq!(active_item.item_id(), last_item.item_id());
 9798        });
 9799    }
 9800    struct TestModal(FocusHandle);
 9801
 9802    impl TestModal {
 9803        fn new(_: &mut Window, cx: &mut Context<Self>) -> Self {
 9804            Self(cx.focus_handle())
 9805        }
 9806    }
 9807
 9808    impl EventEmitter<DismissEvent> for TestModal {}
 9809
 9810    impl Focusable for TestModal {
 9811        fn focus_handle(&self, _cx: &App) -> FocusHandle {
 9812            self.0.clone()
 9813        }
 9814    }
 9815
 9816    impl ModalView for TestModal {}
 9817
 9818    impl Render for TestModal {
 9819        fn render(
 9820            &mut self,
 9821            _window: &mut Window,
 9822            _cx: &mut Context<TestModal>,
 9823        ) -> impl IntoElement {
 9824            div().track_focus(&self.0)
 9825        }
 9826    }
 9827
 9828    #[gpui::test]
 9829    async fn test_panels(cx: &mut gpui::TestAppContext) {
 9830        init_test(cx);
 9831        let fs = FakeFs::new(cx.executor());
 9832
 9833        let project = Project::test(fs, [], cx).await;
 9834        let (workspace, cx) =
 9835            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9836
 9837        let (panel_1, panel_2) = workspace.update_in(cx, |workspace, window, cx| {
 9838            let panel_1 = cx.new(|cx| TestPanel::new(DockPosition::Left, cx));
 9839            workspace.add_panel(panel_1.clone(), window, cx);
 9840            workspace.toggle_dock(DockPosition::Left, window, cx);
 9841            let panel_2 = cx.new(|cx| TestPanel::new(DockPosition::Right, cx));
 9842            workspace.add_panel(panel_2.clone(), window, cx);
 9843            workspace.toggle_dock(DockPosition::Right, window, cx);
 9844
 9845            let left_dock = workspace.left_dock();
 9846            assert_eq!(
 9847                left_dock.read(cx).visible_panel().unwrap().panel_id(),
 9848                panel_1.panel_id()
 9849            );
 9850            assert_eq!(
 9851                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
 9852                panel_1.size(window, cx)
 9853            );
 9854
 9855            left_dock.update(cx, |left_dock, cx| {
 9856                left_dock.resize_active_panel(Some(px(1337.)), window, cx)
 9857            });
 9858            assert_eq!(
 9859                workspace
 9860                    .right_dock()
 9861                    .read(cx)
 9862                    .visible_panel()
 9863                    .unwrap()
 9864                    .panel_id(),
 9865                panel_2.panel_id(),
 9866            );
 9867
 9868            (panel_1, panel_2)
 9869        });
 9870
 9871        // Move panel_1 to the right
 9872        panel_1.update_in(cx, |panel_1, window, cx| {
 9873            panel_1.set_position(DockPosition::Right, window, cx)
 9874        });
 9875
 9876        workspace.update_in(cx, |workspace, window, cx| {
 9877            // Since panel_1 was visible on the left, it should now be visible now that it's been moved to the right.
 9878            // Since it was the only panel on the left, the left dock should now be closed.
 9879            assert!(!workspace.left_dock().read(cx).is_open());
 9880            assert!(workspace.left_dock().read(cx).visible_panel().is_none());
 9881            let right_dock = workspace.right_dock();
 9882            assert_eq!(
 9883                right_dock.read(cx).visible_panel().unwrap().panel_id(),
 9884                panel_1.panel_id()
 9885            );
 9886            assert_eq!(
 9887                right_dock.read(cx).active_panel_size(window, cx).unwrap(),
 9888                px(1337.)
 9889            );
 9890
 9891            // Now we move panel_2 to the left
 9892            panel_2.set_position(DockPosition::Left, window, cx);
 9893        });
 9894
 9895        workspace.update(cx, |workspace, cx| {
 9896            // Since panel_2 was not visible on the right, we don't open the left dock.
 9897            assert!(!workspace.left_dock().read(cx).is_open());
 9898            // And the right dock is unaffected in its displaying of panel_1
 9899            assert!(workspace.right_dock().read(cx).is_open());
 9900            assert_eq!(
 9901                workspace
 9902                    .right_dock()
 9903                    .read(cx)
 9904                    .visible_panel()
 9905                    .unwrap()
 9906                    .panel_id(),
 9907                panel_1.panel_id(),
 9908            );
 9909        });
 9910
 9911        // Move panel_1 back to the left
 9912        panel_1.update_in(cx, |panel_1, window, cx| {
 9913            panel_1.set_position(DockPosition::Left, window, cx)
 9914        });
 9915
 9916        workspace.update_in(cx, |workspace, window, cx| {
 9917            // Since panel_1 was visible on the right, we open the left dock and make panel_1 active.
 9918            let left_dock = workspace.left_dock();
 9919            assert!(left_dock.read(cx).is_open());
 9920            assert_eq!(
 9921                left_dock.read(cx).visible_panel().unwrap().panel_id(),
 9922                panel_1.panel_id()
 9923            );
 9924            assert_eq!(
 9925                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
 9926                px(1337.)
 9927            );
 9928            // And the right dock should be closed as it no longer has any panels.
 9929            assert!(!workspace.right_dock().read(cx).is_open());
 9930
 9931            // Now we move panel_1 to the bottom
 9932            panel_1.set_position(DockPosition::Bottom, window, cx);
 9933        });
 9934
 9935        workspace.update_in(cx, |workspace, window, cx| {
 9936            // Since panel_1 was visible on the left, we close the left dock.
 9937            assert!(!workspace.left_dock().read(cx).is_open());
 9938            // The bottom dock is sized based on the panel's default size,
 9939            // since the panel orientation changed from vertical to horizontal.
 9940            let bottom_dock = workspace.bottom_dock();
 9941            assert_eq!(
 9942                bottom_dock.read(cx).active_panel_size(window, cx).unwrap(),
 9943                panel_1.size(window, cx),
 9944            );
 9945            // Close bottom dock and move panel_1 back to the left.
 9946            bottom_dock.update(cx, |bottom_dock, cx| {
 9947                bottom_dock.set_open(false, window, cx)
 9948            });
 9949            panel_1.set_position(DockPosition::Left, window, cx);
 9950        });
 9951
 9952        // Emit activated event on panel 1
 9953        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Activate));
 9954
 9955        // Now the left dock is open and panel_1 is active and focused.
 9956        workspace.update_in(cx, |workspace, window, cx| {
 9957            let left_dock = workspace.left_dock();
 9958            assert!(left_dock.read(cx).is_open());
 9959            assert_eq!(
 9960                left_dock.read(cx).visible_panel().unwrap().panel_id(),
 9961                panel_1.panel_id(),
 9962            );
 9963            assert!(panel_1.focus_handle(cx).is_focused(window));
 9964        });
 9965
 9966        // Emit closed event on panel 2, which is not active
 9967        panel_2.update(cx, |_, cx| cx.emit(PanelEvent::Close));
 9968
 9969        // Wo don't close the left dock, because panel_2 wasn't the active panel
 9970        workspace.update(cx, |workspace, cx| {
 9971            let left_dock = workspace.left_dock();
 9972            assert!(left_dock.read(cx).is_open());
 9973            assert_eq!(
 9974                left_dock.read(cx).visible_panel().unwrap().panel_id(),
 9975                panel_1.panel_id(),
 9976            );
 9977        });
 9978
 9979        // Emitting a ZoomIn event shows the panel as zoomed.
 9980        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomIn));
 9981        workspace.read_with(cx, |workspace, _| {
 9982            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
 9983            assert_eq!(workspace.zoomed_position, Some(DockPosition::Left));
 9984        });
 9985
 9986        // Move panel to another dock while it is zoomed
 9987        panel_1.update_in(cx, |panel, window, cx| {
 9988            panel.set_position(DockPosition::Right, window, cx)
 9989        });
 9990        workspace.read_with(cx, |workspace, _| {
 9991            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
 9992
 9993            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
 9994        });
 9995
 9996        // This is a helper for getting a:
 9997        // - valid focus on an element,
 9998        // - that isn't a part of the panes and panels system of the Workspace,
 9999        // - and doesn't trigger the 'on_focus_lost' API.
10000        let focus_other_view = {
10001            let workspace = workspace.clone();
10002            move |cx: &mut VisualTestContext| {
10003                workspace.update_in(cx, |workspace, window, cx| {
10004                    if workspace.active_modal::<TestModal>(cx).is_some() {
10005                        workspace.toggle_modal(window, cx, TestModal::new);
10006                        workspace.toggle_modal(window, cx, TestModal::new);
10007                    } else {
10008                        workspace.toggle_modal(window, cx, TestModal::new);
10009                    }
10010                })
10011            }
10012        };
10013
10014        // If focus is transferred to another view that's not a panel or another pane, we still show
10015        // the panel as zoomed.
10016        focus_other_view(cx);
10017        workspace.read_with(cx, |workspace, _| {
10018            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10019            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10020        });
10021
10022        // If focus is transferred elsewhere in the workspace, the panel is no longer zoomed.
10023        workspace.update_in(cx, |_workspace, window, cx| {
10024            cx.focus_self(window);
10025        });
10026        workspace.read_with(cx, |workspace, _| {
10027            assert_eq!(workspace.zoomed, None);
10028            assert_eq!(workspace.zoomed_position, None);
10029        });
10030
10031        // If focus is transferred again to another view that's not a panel or a pane, we won't
10032        // show the panel as zoomed because it wasn't zoomed before.
10033        focus_other_view(cx);
10034        workspace.read_with(cx, |workspace, _| {
10035            assert_eq!(workspace.zoomed, None);
10036            assert_eq!(workspace.zoomed_position, None);
10037        });
10038
10039        // When the panel is activated, it is zoomed again.
10040        cx.dispatch_action(ToggleRightDock);
10041        workspace.read_with(cx, |workspace, _| {
10042            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10043            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10044        });
10045
10046        // Emitting a ZoomOut event unzooms the panel.
10047        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomOut));
10048        workspace.read_with(cx, |workspace, _| {
10049            assert_eq!(workspace.zoomed, None);
10050            assert_eq!(workspace.zoomed_position, None);
10051        });
10052
10053        // Emit closed event on panel 1, which is active
10054        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Close));
10055
10056        // Now the left dock is closed, because panel_1 was the active panel
10057        workspace.update(cx, |workspace, cx| {
10058            let right_dock = workspace.right_dock();
10059            assert!(!right_dock.read(cx).is_open());
10060        });
10061    }
10062
10063    #[gpui::test]
10064    async fn test_no_save_prompt_when_multi_buffer_dirty_items_closed(cx: &mut TestAppContext) {
10065        init_test(cx);
10066
10067        let fs = FakeFs::new(cx.background_executor.clone());
10068        let project = Project::test(fs, [], cx).await;
10069        let (workspace, cx) =
10070            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10071        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10072
10073        let dirty_regular_buffer = cx.new(|cx| {
10074            TestItem::new(cx)
10075                .with_dirty(true)
10076                .with_label("1.txt")
10077                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10078        });
10079        let dirty_regular_buffer_2 = cx.new(|cx| {
10080            TestItem::new(cx)
10081                .with_dirty(true)
10082                .with_label("2.txt")
10083                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10084        });
10085        let dirty_multi_buffer_with_both = cx.new(|cx| {
10086            TestItem::new(cx)
10087                .with_dirty(true)
10088                .with_buffer_kind(ItemBufferKind::Multibuffer)
10089                .with_label("Fake Project Search")
10090                .with_project_items(&[
10091                    dirty_regular_buffer.read(cx).project_items[0].clone(),
10092                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
10093                ])
10094        });
10095        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
10096        workspace.update_in(cx, |workspace, window, cx| {
10097            workspace.add_item(
10098                pane.clone(),
10099                Box::new(dirty_regular_buffer.clone()),
10100                None,
10101                false,
10102                false,
10103                window,
10104                cx,
10105            );
10106            workspace.add_item(
10107                pane.clone(),
10108                Box::new(dirty_regular_buffer_2.clone()),
10109                None,
10110                false,
10111                false,
10112                window,
10113                cx,
10114            );
10115            workspace.add_item(
10116                pane.clone(),
10117                Box::new(dirty_multi_buffer_with_both.clone()),
10118                None,
10119                false,
10120                false,
10121                window,
10122                cx,
10123            );
10124        });
10125
10126        pane.update_in(cx, |pane, window, cx| {
10127            pane.activate_item(2, true, true, window, cx);
10128            assert_eq!(
10129                pane.active_item().unwrap().item_id(),
10130                multi_buffer_with_both_files_id,
10131                "Should select the multi buffer in the pane"
10132            );
10133        });
10134        let close_all_but_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10135            pane.close_other_items(
10136                &CloseOtherItems {
10137                    save_intent: Some(SaveIntent::Save),
10138                    close_pinned: true,
10139                },
10140                None,
10141                window,
10142                cx,
10143            )
10144        });
10145        cx.background_executor.run_until_parked();
10146        assert!(!cx.has_pending_prompt());
10147        close_all_but_multi_buffer_task
10148            .await
10149            .expect("Closing all buffers but the multi buffer failed");
10150        pane.update(cx, |pane, cx| {
10151            assert_eq!(dirty_regular_buffer.read(cx).save_count, 1);
10152            assert_eq!(dirty_multi_buffer_with_both.read(cx).save_count, 0);
10153            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 1);
10154            assert_eq!(pane.items_len(), 1);
10155            assert_eq!(
10156                pane.active_item().unwrap().item_id(),
10157                multi_buffer_with_both_files_id,
10158                "Should have only the multi buffer left in the pane"
10159            );
10160            assert!(
10161                dirty_multi_buffer_with_both.read(cx).is_dirty,
10162                "The multi buffer containing the unsaved buffer should still be dirty"
10163            );
10164        });
10165
10166        dirty_regular_buffer.update(cx, |buffer, cx| {
10167            buffer.project_items[0].update(cx, |pi, _| pi.is_dirty = true)
10168        });
10169
10170        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10171            pane.close_active_item(
10172                &CloseActiveItem {
10173                    save_intent: Some(SaveIntent::Close),
10174                    close_pinned: false,
10175                },
10176                window,
10177                cx,
10178            )
10179        });
10180        cx.background_executor.run_until_parked();
10181        assert!(
10182            cx.has_pending_prompt(),
10183            "Dirty multi buffer should prompt a save dialog"
10184        );
10185        cx.simulate_prompt_answer("Save");
10186        cx.background_executor.run_until_parked();
10187        close_multi_buffer_task
10188            .await
10189            .expect("Closing the multi buffer failed");
10190        pane.update(cx, |pane, cx| {
10191            assert_eq!(
10192                dirty_multi_buffer_with_both.read(cx).save_count,
10193                1,
10194                "Multi buffer item should get be saved"
10195            );
10196            // Test impl does not save inner items, so we do not assert them
10197            assert_eq!(
10198                pane.items_len(),
10199                0,
10200                "No more items should be left in the pane"
10201            );
10202            assert!(pane.active_item().is_none());
10203        });
10204    }
10205
10206    #[gpui::test]
10207    async fn test_save_prompt_when_dirty_multi_buffer_closed_with_some_of_its_dirty_items_not_present_in_the_pane(
10208        cx: &mut TestAppContext,
10209    ) {
10210        init_test(cx);
10211
10212        let fs = FakeFs::new(cx.background_executor.clone());
10213        let project = Project::test(fs, [], cx).await;
10214        let (workspace, cx) =
10215            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10216        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10217
10218        let dirty_regular_buffer = cx.new(|cx| {
10219            TestItem::new(cx)
10220                .with_dirty(true)
10221                .with_label("1.txt")
10222                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10223        });
10224        let dirty_regular_buffer_2 = cx.new(|cx| {
10225            TestItem::new(cx)
10226                .with_dirty(true)
10227                .with_label("2.txt")
10228                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10229        });
10230        let clear_regular_buffer = cx.new(|cx| {
10231            TestItem::new(cx)
10232                .with_label("3.txt")
10233                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
10234        });
10235
10236        let dirty_multi_buffer_with_both = cx.new(|cx| {
10237            TestItem::new(cx)
10238                .with_dirty(true)
10239                .with_buffer_kind(ItemBufferKind::Multibuffer)
10240                .with_label("Fake Project Search")
10241                .with_project_items(&[
10242                    dirty_regular_buffer.read(cx).project_items[0].clone(),
10243                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
10244                    clear_regular_buffer.read(cx).project_items[0].clone(),
10245                ])
10246        });
10247        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
10248        workspace.update_in(cx, |workspace, window, cx| {
10249            workspace.add_item(
10250                pane.clone(),
10251                Box::new(dirty_regular_buffer.clone()),
10252                None,
10253                false,
10254                false,
10255                window,
10256                cx,
10257            );
10258            workspace.add_item(
10259                pane.clone(),
10260                Box::new(dirty_multi_buffer_with_both.clone()),
10261                None,
10262                false,
10263                false,
10264                window,
10265                cx,
10266            );
10267        });
10268
10269        pane.update_in(cx, |pane, window, cx| {
10270            pane.activate_item(1, true, true, window, cx);
10271            assert_eq!(
10272                pane.active_item().unwrap().item_id(),
10273                multi_buffer_with_both_files_id,
10274                "Should select the multi buffer in the pane"
10275            );
10276        });
10277        let _close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10278            pane.close_active_item(
10279                &CloseActiveItem {
10280                    save_intent: None,
10281                    close_pinned: false,
10282                },
10283                window,
10284                cx,
10285            )
10286        });
10287        cx.background_executor.run_until_parked();
10288        assert!(
10289            cx.has_pending_prompt(),
10290            "With one dirty item from the multi buffer not being in the pane, a save prompt should be shown"
10291        );
10292    }
10293
10294    /// Tests that when `close_on_file_delete` is enabled, files are automatically
10295    /// closed when they are deleted from disk.
10296    #[gpui::test]
10297    async fn test_close_on_disk_deletion_enabled(cx: &mut TestAppContext) {
10298        init_test(cx);
10299
10300        // Enable the close_on_disk_deletion setting
10301        cx.update_global(|store: &mut SettingsStore, cx| {
10302            store.update_user_settings(cx, |settings| {
10303                settings.workspace.close_on_file_delete = Some(true);
10304            });
10305        });
10306
10307        let fs = FakeFs::new(cx.background_executor.clone());
10308        let project = Project::test(fs, [], cx).await;
10309        let (workspace, cx) =
10310            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10311        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10312
10313        // Create a test item that simulates a file
10314        let item = cx.new(|cx| {
10315            TestItem::new(cx)
10316                .with_label("test.txt")
10317                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
10318        });
10319
10320        // Add item to workspace
10321        workspace.update_in(cx, |workspace, window, cx| {
10322            workspace.add_item(
10323                pane.clone(),
10324                Box::new(item.clone()),
10325                None,
10326                false,
10327                false,
10328                window,
10329                cx,
10330            );
10331        });
10332
10333        // Verify the item is in the pane
10334        pane.read_with(cx, |pane, _| {
10335            assert_eq!(pane.items().count(), 1);
10336        });
10337
10338        // Simulate file deletion by setting the item's deleted state
10339        item.update(cx, |item, _| {
10340            item.set_has_deleted_file(true);
10341        });
10342
10343        // Emit UpdateTab event to trigger the close behavior
10344        cx.run_until_parked();
10345        item.update(cx, |_, cx| {
10346            cx.emit(ItemEvent::UpdateTab);
10347        });
10348
10349        // Allow the close operation to complete
10350        cx.run_until_parked();
10351
10352        // Verify the item was automatically closed
10353        pane.read_with(cx, |pane, _| {
10354            assert_eq!(
10355                pane.items().count(),
10356                0,
10357                "Item should be automatically closed when file is deleted"
10358            );
10359        });
10360    }
10361
10362    /// Tests that when `close_on_file_delete` is disabled (default), files remain
10363    /// open with a strikethrough when they are deleted from disk.
10364    #[gpui::test]
10365    async fn test_close_on_disk_deletion_disabled(cx: &mut TestAppContext) {
10366        init_test(cx);
10367
10368        // Ensure close_on_disk_deletion is disabled (default)
10369        cx.update_global(|store: &mut SettingsStore, cx| {
10370            store.update_user_settings(cx, |settings| {
10371                settings.workspace.close_on_file_delete = Some(false);
10372            });
10373        });
10374
10375        let fs = FakeFs::new(cx.background_executor.clone());
10376        let project = Project::test(fs, [], cx).await;
10377        let (workspace, cx) =
10378            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10379        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10380
10381        // Create a test item that simulates a file
10382        let item = cx.new(|cx| {
10383            TestItem::new(cx)
10384                .with_label("test.txt")
10385                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
10386        });
10387
10388        // Add item to workspace
10389        workspace.update_in(cx, |workspace, window, cx| {
10390            workspace.add_item(
10391                pane.clone(),
10392                Box::new(item.clone()),
10393                None,
10394                false,
10395                false,
10396                window,
10397                cx,
10398            );
10399        });
10400
10401        // Verify the item is in the pane
10402        pane.read_with(cx, |pane, _| {
10403            assert_eq!(pane.items().count(), 1);
10404        });
10405
10406        // Simulate file deletion
10407        item.update(cx, |item, _| {
10408            item.set_has_deleted_file(true);
10409        });
10410
10411        // Emit UpdateTab event
10412        cx.run_until_parked();
10413        item.update(cx, |_, cx| {
10414            cx.emit(ItemEvent::UpdateTab);
10415        });
10416
10417        // Allow any potential close operation to complete
10418        cx.run_until_parked();
10419
10420        // Verify the item remains open (with strikethrough)
10421        pane.read_with(cx, |pane, _| {
10422            assert_eq!(
10423                pane.items().count(),
10424                1,
10425                "Item should remain open when close_on_disk_deletion is disabled"
10426            );
10427        });
10428
10429        // Verify the item shows as deleted
10430        item.read_with(cx, |item, _| {
10431            assert!(
10432                item.has_deleted_file,
10433                "Item should be marked as having deleted file"
10434            );
10435        });
10436    }
10437
10438    /// Tests that dirty files are not automatically closed when deleted from disk,
10439    /// even when `close_on_file_delete` is enabled. This ensures users don't lose
10440    /// unsaved changes without being prompted.
10441    #[gpui::test]
10442    async fn test_close_on_disk_deletion_with_dirty_file(cx: &mut TestAppContext) {
10443        init_test(cx);
10444
10445        // Enable the close_on_file_delete setting
10446        cx.update_global(|store: &mut SettingsStore, cx| {
10447            store.update_user_settings(cx, |settings| {
10448                settings.workspace.close_on_file_delete = Some(true);
10449            });
10450        });
10451
10452        let fs = FakeFs::new(cx.background_executor.clone());
10453        let project = Project::test(fs, [], cx).await;
10454        let (workspace, cx) =
10455            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10456        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10457
10458        // Create a dirty test item
10459        let item = cx.new(|cx| {
10460            TestItem::new(cx)
10461                .with_dirty(true)
10462                .with_label("test.txt")
10463                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
10464        });
10465
10466        // Add item to workspace
10467        workspace.update_in(cx, |workspace, window, cx| {
10468            workspace.add_item(
10469                pane.clone(),
10470                Box::new(item.clone()),
10471                None,
10472                false,
10473                false,
10474                window,
10475                cx,
10476            );
10477        });
10478
10479        // Simulate file deletion
10480        item.update(cx, |item, _| {
10481            item.set_has_deleted_file(true);
10482        });
10483
10484        // Emit UpdateTab event to trigger the close behavior
10485        cx.run_until_parked();
10486        item.update(cx, |_, cx| {
10487            cx.emit(ItemEvent::UpdateTab);
10488        });
10489
10490        // Allow any potential close operation to complete
10491        cx.run_until_parked();
10492
10493        // Verify the item remains open (dirty files are not auto-closed)
10494        pane.read_with(cx, |pane, _| {
10495            assert_eq!(
10496                pane.items().count(),
10497                1,
10498                "Dirty items should not be automatically closed even when file is deleted"
10499            );
10500        });
10501
10502        // Verify the item is marked as deleted and still dirty
10503        item.read_with(cx, |item, _| {
10504            assert!(
10505                item.has_deleted_file,
10506                "Item should be marked as having deleted file"
10507            );
10508            assert!(item.is_dirty, "Item should still be dirty");
10509        });
10510    }
10511
10512    /// Tests that navigation history is cleaned up when files are auto-closed
10513    /// due to deletion from disk.
10514    #[gpui::test]
10515    async fn test_close_on_disk_deletion_cleans_navigation_history(cx: &mut TestAppContext) {
10516        init_test(cx);
10517
10518        // Enable the close_on_file_delete setting
10519        cx.update_global(|store: &mut SettingsStore, cx| {
10520            store.update_user_settings(cx, |settings| {
10521                settings.workspace.close_on_file_delete = Some(true);
10522            });
10523        });
10524
10525        let fs = FakeFs::new(cx.background_executor.clone());
10526        let project = Project::test(fs, [], cx).await;
10527        let (workspace, cx) =
10528            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10529        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10530
10531        // Create test items
10532        let item1 = cx.new(|cx| {
10533            TestItem::new(cx)
10534                .with_label("test1.txt")
10535                .with_project_items(&[TestProjectItem::new(1, "test1.txt", cx)])
10536        });
10537        let item1_id = item1.item_id();
10538
10539        let item2 = cx.new(|cx| {
10540            TestItem::new(cx)
10541                .with_label("test2.txt")
10542                .with_project_items(&[TestProjectItem::new(2, "test2.txt", cx)])
10543        });
10544
10545        // Add items to workspace
10546        workspace.update_in(cx, |workspace, window, cx| {
10547            workspace.add_item(
10548                pane.clone(),
10549                Box::new(item1.clone()),
10550                None,
10551                false,
10552                false,
10553                window,
10554                cx,
10555            );
10556            workspace.add_item(
10557                pane.clone(),
10558                Box::new(item2.clone()),
10559                None,
10560                false,
10561                false,
10562                window,
10563                cx,
10564            );
10565        });
10566
10567        // Activate item1 to ensure it gets navigation entries
10568        pane.update_in(cx, |pane, window, cx| {
10569            pane.activate_item(0, true, true, window, cx);
10570        });
10571
10572        // Switch to item2 and back to create navigation history
10573        pane.update_in(cx, |pane, window, cx| {
10574            pane.activate_item(1, true, true, window, cx);
10575        });
10576        cx.run_until_parked();
10577
10578        pane.update_in(cx, |pane, window, cx| {
10579            pane.activate_item(0, true, true, window, cx);
10580        });
10581        cx.run_until_parked();
10582
10583        // Simulate file deletion for item1
10584        item1.update(cx, |item, _| {
10585            item.set_has_deleted_file(true);
10586        });
10587
10588        // Emit UpdateTab event to trigger the close behavior
10589        item1.update(cx, |_, cx| {
10590            cx.emit(ItemEvent::UpdateTab);
10591        });
10592        cx.run_until_parked();
10593
10594        // Verify item1 was closed
10595        pane.read_with(cx, |pane, _| {
10596            assert_eq!(
10597                pane.items().count(),
10598                1,
10599                "Should have 1 item remaining after auto-close"
10600            );
10601        });
10602
10603        // Check navigation history after close
10604        let has_item = pane.read_with(cx, |pane, cx| {
10605            let mut has_item = false;
10606            pane.nav_history().for_each_entry(cx, |entry, _| {
10607                if entry.item.id() == item1_id {
10608                    has_item = true;
10609                }
10610            });
10611            has_item
10612        });
10613
10614        assert!(
10615            !has_item,
10616            "Navigation history should not contain closed item entries"
10617        );
10618    }
10619
10620    #[gpui::test]
10621    async fn test_no_save_prompt_when_dirty_multi_buffer_closed_with_all_of_its_dirty_items_present_in_the_pane(
10622        cx: &mut TestAppContext,
10623    ) {
10624        init_test(cx);
10625
10626        let fs = FakeFs::new(cx.background_executor.clone());
10627        let project = Project::test(fs, [], cx).await;
10628        let (workspace, cx) =
10629            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10630        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10631
10632        let dirty_regular_buffer = cx.new(|cx| {
10633            TestItem::new(cx)
10634                .with_dirty(true)
10635                .with_label("1.txt")
10636                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10637        });
10638        let dirty_regular_buffer_2 = cx.new(|cx| {
10639            TestItem::new(cx)
10640                .with_dirty(true)
10641                .with_label("2.txt")
10642                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10643        });
10644        let clear_regular_buffer = cx.new(|cx| {
10645            TestItem::new(cx)
10646                .with_label("3.txt")
10647                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
10648        });
10649
10650        let dirty_multi_buffer = cx.new(|cx| {
10651            TestItem::new(cx)
10652                .with_dirty(true)
10653                .with_buffer_kind(ItemBufferKind::Multibuffer)
10654                .with_label("Fake Project Search")
10655                .with_project_items(&[
10656                    dirty_regular_buffer.read(cx).project_items[0].clone(),
10657                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
10658                    clear_regular_buffer.read(cx).project_items[0].clone(),
10659                ])
10660        });
10661        workspace.update_in(cx, |workspace, window, cx| {
10662            workspace.add_item(
10663                pane.clone(),
10664                Box::new(dirty_regular_buffer.clone()),
10665                None,
10666                false,
10667                false,
10668                window,
10669                cx,
10670            );
10671            workspace.add_item(
10672                pane.clone(),
10673                Box::new(dirty_regular_buffer_2.clone()),
10674                None,
10675                false,
10676                false,
10677                window,
10678                cx,
10679            );
10680            workspace.add_item(
10681                pane.clone(),
10682                Box::new(dirty_multi_buffer.clone()),
10683                None,
10684                false,
10685                false,
10686                window,
10687                cx,
10688            );
10689        });
10690
10691        pane.update_in(cx, |pane, window, cx| {
10692            pane.activate_item(2, true, true, window, cx);
10693            assert_eq!(
10694                pane.active_item().unwrap().item_id(),
10695                dirty_multi_buffer.item_id(),
10696                "Should select the multi buffer in the pane"
10697            );
10698        });
10699        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10700            pane.close_active_item(
10701                &CloseActiveItem {
10702                    save_intent: None,
10703                    close_pinned: false,
10704                },
10705                window,
10706                cx,
10707            )
10708        });
10709        cx.background_executor.run_until_parked();
10710        assert!(
10711            !cx.has_pending_prompt(),
10712            "All dirty items from the multi buffer are in the pane still, no save prompts should be shown"
10713        );
10714        close_multi_buffer_task
10715            .await
10716            .expect("Closing multi buffer failed");
10717        pane.update(cx, |pane, cx| {
10718            assert_eq!(dirty_regular_buffer.read(cx).save_count, 0);
10719            assert_eq!(dirty_multi_buffer.read(cx).save_count, 0);
10720            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 0);
10721            assert_eq!(
10722                pane.items()
10723                    .map(|item| item.item_id())
10724                    .sorted()
10725                    .collect::<Vec<_>>(),
10726                vec![
10727                    dirty_regular_buffer.item_id(),
10728                    dirty_regular_buffer_2.item_id(),
10729                ],
10730                "Should have no multi buffer left in the pane"
10731            );
10732            assert!(dirty_regular_buffer.read(cx).is_dirty);
10733            assert!(dirty_regular_buffer_2.read(cx).is_dirty);
10734        });
10735    }
10736
10737    #[gpui::test]
10738    async fn test_move_focused_panel_to_next_position(cx: &mut gpui::TestAppContext) {
10739        init_test(cx);
10740        let fs = FakeFs::new(cx.executor());
10741        let project = Project::test(fs, [], cx).await;
10742        let (workspace, cx) =
10743            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10744
10745        // Add a new panel to the right dock, opening the dock and setting the
10746        // focus to the new panel.
10747        let panel = workspace.update_in(cx, |workspace, window, cx| {
10748            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, cx));
10749            workspace.add_panel(panel.clone(), window, cx);
10750
10751            workspace
10752                .right_dock()
10753                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
10754
10755            workspace.toggle_panel_focus::<TestPanel>(window, cx);
10756
10757            panel
10758        });
10759
10760        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
10761        // panel to the next valid position which, in this case, is the left
10762        // dock.
10763        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10764        workspace.update(cx, |workspace, cx| {
10765            assert!(workspace.left_dock().read(cx).is_open());
10766            assert_eq!(panel.read(cx).position, DockPosition::Left);
10767        });
10768
10769        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
10770        // panel to the next valid position which, in this case, is the bottom
10771        // dock.
10772        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10773        workspace.update(cx, |workspace, cx| {
10774            assert!(workspace.bottom_dock().read(cx).is_open());
10775            assert_eq!(panel.read(cx).position, DockPosition::Bottom);
10776        });
10777
10778        // Dispatch the `MoveFocusedPanelToNextPosition` action again, this time
10779        // around moving the panel to its initial position, the right dock.
10780        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10781        workspace.update(cx, |workspace, cx| {
10782            assert!(workspace.right_dock().read(cx).is_open());
10783            assert_eq!(panel.read(cx).position, DockPosition::Right);
10784        });
10785
10786        // Remove focus from the panel, ensuring that, if the panel is not
10787        // focused, the `MoveFocusedPanelToNextPosition` action does not update
10788        // the panel's position, so the panel is still in the right dock.
10789        workspace.update_in(cx, |workspace, window, cx| {
10790            workspace.toggle_panel_focus::<TestPanel>(window, cx);
10791        });
10792
10793        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10794        workspace.update(cx, |workspace, cx| {
10795            assert!(workspace.right_dock().read(cx).is_open());
10796            assert_eq!(panel.read(cx).position, DockPosition::Right);
10797        });
10798    }
10799
10800    #[gpui::test]
10801    async fn test_moving_items_create_panes(cx: &mut TestAppContext) {
10802        init_test(cx);
10803
10804        let fs = FakeFs::new(cx.executor());
10805        let project = Project::test(fs, [], cx).await;
10806        let (workspace, cx) =
10807            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10808
10809        let item_1 = cx.new(|cx| {
10810            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
10811        });
10812        workspace.update_in(cx, |workspace, window, cx| {
10813            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
10814            workspace.move_item_to_pane_in_direction(
10815                &MoveItemToPaneInDirection {
10816                    direction: SplitDirection::Right,
10817                    focus: true,
10818                    clone: false,
10819                },
10820                window,
10821                cx,
10822            );
10823            workspace.move_item_to_pane_at_index(
10824                &MoveItemToPane {
10825                    destination: 3,
10826                    focus: true,
10827                    clone: false,
10828                },
10829                window,
10830                cx,
10831            );
10832
10833            assert_eq!(workspace.panes.len(), 1, "No new panes were created");
10834            assert_eq!(
10835                pane_items_paths(&workspace.active_pane, cx),
10836                vec!["first.txt".to_string()],
10837                "Single item was not moved anywhere"
10838            );
10839        });
10840
10841        let item_2 = cx.new(|cx| {
10842            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "second.txt", cx)])
10843        });
10844        workspace.update_in(cx, |workspace, window, cx| {
10845            workspace.add_item_to_active_pane(Box::new(item_2), None, true, window, cx);
10846            assert_eq!(
10847                pane_items_paths(&workspace.panes[0], cx),
10848                vec!["first.txt".to_string(), "second.txt".to_string()],
10849            );
10850            workspace.move_item_to_pane_in_direction(
10851                &MoveItemToPaneInDirection {
10852                    direction: SplitDirection::Right,
10853                    focus: true,
10854                    clone: false,
10855                },
10856                window,
10857                cx,
10858            );
10859
10860            assert_eq!(workspace.panes.len(), 2, "A new pane should be created");
10861            assert_eq!(
10862                pane_items_paths(&workspace.panes[0], cx),
10863                vec!["first.txt".to_string()],
10864                "After moving, one item should be left in the original pane"
10865            );
10866            assert_eq!(
10867                pane_items_paths(&workspace.panes[1], cx),
10868                vec!["second.txt".to_string()],
10869                "New item should have been moved to the new pane"
10870            );
10871        });
10872
10873        let item_3 = cx.new(|cx| {
10874            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "third.txt", cx)])
10875        });
10876        workspace.update_in(cx, |workspace, window, cx| {
10877            let original_pane = workspace.panes[0].clone();
10878            workspace.set_active_pane(&original_pane, window, cx);
10879            workspace.add_item_to_active_pane(Box::new(item_3), None, true, window, cx);
10880            assert_eq!(workspace.panes.len(), 2, "No new panes were created");
10881            assert_eq!(
10882                pane_items_paths(&workspace.active_pane, cx),
10883                vec!["first.txt".to_string(), "third.txt".to_string()],
10884                "New pane should be ready to move one item out"
10885            );
10886
10887            workspace.move_item_to_pane_at_index(
10888                &MoveItemToPane {
10889                    destination: 3,
10890                    focus: true,
10891                    clone: false,
10892                },
10893                window,
10894                cx,
10895            );
10896            assert_eq!(workspace.panes.len(), 3, "A new pane should be created");
10897            assert_eq!(
10898                pane_items_paths(&workspace.active_pane, cx),
10899                vec!["first.txt".to_string()],
10900                "After moving, one item should be left in the original pane"
10901            );
10902            assert_eq!(
10903                pane_items_paths(&workspace.panes[1], cx),
10904                vec!["second.txt".to_string()],
10905                "Previously created pane should be unchanged"
10906            );
10907            assert_eq!(
10908                pane_items_paths(&workspace.panes[2], cx),
10909                vec!["third.txt".to_string()],
10910                "New item should have been moved to the new pane"
10911            );
10912        });
10913    }
10914
10915    #[gpui::test]
10916    async fn test_moving_items_can_clone_panes(cx: &mut TestAppContext) {
10917        init_test(cx);
10918
10919        let fs = FakeFs::new(cx.executor());
10920        let project = Project::test(fs, [], cx).await;
10921        let (workspace, cx) =
10922            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10923
10924        let item_1 = cx.new(|cx| {
10925            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
10926        });
10927        workspace.update_in(cx, |workspace, window, cx| {
10928            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
10929            workspace.move_item_to_pane_in_direction(
10930                &MoveItemToPaneInDirection {
10931                    direction: SplitDirection::Right,
10932                    focus: true,
10933                    clone: true,
10934                },
10935                window,
10936                cx,
10937            );
10938            workspace.move_item_to_pane_at_index(
10939                &MoveItemToPane {
10940                    destination: 3,
10941                    focus: true,
10942                    clone: true,
10943                },
10944                window,
10945                cx,
10946            );
10947        });
10948        cx.run_until_parked();
10949
10950        workspace.update(cx, |workspace, cx| {
10951            assert_eq!(workspace.panes.len(), 3, "Two new panes were created");
10952            for pane in workspace.panes() {
10953                assert_eq!(
10954                    pane_items_paths(pane, cx),
10955                    vec!["first.txt".to_string()],
10956                    "Single item exists in all panes"
10957                );
10958            }
10959        });
10960
10961        // verify that the active pane has been updated after waiting for the
10962        // pane focus event to fire and resolve
10963        workspace.read_with(cx, |workspace, _app| {
10964            assert_eq!(
10965                workspace.active_pane(),
10966                &workspace.panes[2],
10967                "The third pane should be the active one: {:?}",
10968                workspace.panes
10969            );
10970        })
10971    }
10972
10973    mod register_project_item_tests {
10974
10975        use super::*;
10976
10977        // View
10978        struct TestPngItemView {
10979            focus_handle: FocusHandle,
10980        }
10981        // Model
10982        struct TestPngItem {}
10983
10984        impl project::ProjectItem for TestPngItem {
10985            fn try_open(
10986                _project: &Entity<Project>,
10987                path: &ProjectPath,
10988                cx: &mut App,
10989            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
10990                if path.path.extension().unwrap() == "png" {
10991                    Some(cx.spawn(async move |cx| cx.new(|_| TestPngItem {})))
10992                } else {
10993                    None
10994                }
10995            }
10996
10997            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
10998                None
10999            }
11000
11001            fn project_path(&self, _: &App) -> Option<ProjectPath> {
11002                None
11003            }
11004
11005            fn is_dirty(&self) -> bool {
11006                false
11007            }
11008        }
11009
11010        impl Item for TestPngItemView {
11011            type Event = ();
11012            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11013                "".into()
11014            }
11015        }
11016        impl EventEmitter<()> for TestPngItemView {}
11017        impl Focusable for TestPngItemView {
11018            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11019                self.focus_handle.clone()
11020            }
11021        }
11022
11023        impl Render for TestPngItemView {
11024            fn render(
11025                &mut self,
11026                _window: &mut Window,
11027                _cx: &mut Context<Self>,
11028            ) -> impl IntoElement {
11029                Empty
11030            }
11031        }
11032
11033        impl ProjectItem for TestPngItemView {
11034            type Item = TestPngItem;
11035
11036            fn for_project_item(
11037                _project: Entity<Project>,
11038                _pane: Option<&Pane>,
11039                _item: Entity<Self::Item>,
11040                _: &mut Window,
11041                cx: &mut Context<Self>,
11042            ) -> Self
11043            where
11044                Self: Sized,
11045            {
11046                Self {
11047                    focus_handle: cx.focus_handle(),
11048                }
11049            }
11050        }
11051
11052        // View
11053        struct TestIpynbItemView {
11054            focus_handle: FocusHandle,
11055        }
11056        // Model
11057        struct TestIpynbItem {}
11058
11059        impl project::ProjectItem for TestIpynbItem {
11060            fn try_open(
11061                _project: &Entity<Project>,
11062                path: &ProjectPath,
11063                cx: &mut App,
11064            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
11065                if path.path.extension().unwrap() == "ipynb" {
11066                    Some(cx.spawn(async move |cx| cx.new(|_| TestIpynbItem {})))
11067                } else {
11068                    None
11069                }
11070            }
11071
11072            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
11073                None
11074            }
11075
11076            fn project_path(&self, _: &App) -> Option<ProjectPath> {
11077                None
11078            }
11079
11080            fn is_dirty(&self) -> bool {
11081                false
11082            }
11083        }
11084
11085        impl Item for TestIpynbItemView {
11086            type Event = ();
11087            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11088                "".into()
11089            }
11090        }
11091        impl EventEmitter<()> for TestIpynbItemView {}
11092        impl Focusable for TestIpynbItemView {
11093            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11094                self.focus_handle.clone()
11095            }
11096        }
11097
11098        impl Render for TestIpynbItemView {
11099            fn render(
11100                &mut self,
11101                _window: &mut Window,
11102                _cx: &mut Context<Self>,
11103            ) -> impl IntoElement {
11104                Empty
11105            }
11106        }
11107
11108        impl ProjectItem for TestIpynbItemView {
11109            type Item = TestIpynbItem;
11110
11111            fn for_project_item(
11112                _project: Entity<Project>,
11113                _pane: Option<&Pane>,
11114                _item: Entity<Self::Item>,
11115                _: &mut Window,
11116                cx: &mut Context<Self>,
11117            ) -> Self
11118            where
11119                Self: Sized,
11120            {
11121                Self {
11122                    focus_handle: cx.focus_handle(),
11123                }
11124            }
11125        }
11126
11127        struct TestAlternatePngItemView {
11128            focus_handle: FocusHandle,
11129        }
11130
11131        impl Item for TestAlternatePngItemView {
11132            type Event = ();
11133            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11134                "".into()
11135            }
11136        }
11137
11138        impl EventEmitter<()> for TestAlternatePngItemView {}
11139        impl Focusable for TestAlternatePngItemView {
11140            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11141                self.focus_handle.clone()
11142            }
11143        }
11144
11145        impl Render for TestAlternatePngItemView {
11146            fn render(
11147                &mut self,
11148                _window: &mut Window,
11149                _cx: &mut Context<Self>,
11150            ) -> impl IntoElement {
11151                Empty
11152            }
11153        }
11154
11155        impl ProjectItem for TestAlternatePngItemView {
11156            type Item = TestPngItem;
11157
11158            fn for_project_item(
11159                _project: Entity<Project>,
11160                _pane: Option<&Pane>,
11161                _item: Entity<Self::Item>,
11162                _: &mut Window,
11163                cx: &mut Context<Self>,
11164            ) -> Self
11165            where
11166                Self: Sized,
11167            {
11168                Self {
11169                    focus_handle: cx.focus_handle(),
11170                }
11171            }
11172        }
11173
11174        #[gpui::test]
11175        async fn test_register_project_item(cx: &mut TestAppContext) {
11176            init_test(cx);
11177
11178            cx.update(|cx| {
11179                register_project_item::<TestPngItemView>(cx);
11180                register_project_item::<TestIpynbItemView>(cx);
11181            });
11182
11183            let fs = FakeFs::new(cx.executor());
11184            fs.insert_tree(
11185                "/root1",
11186                json!({
11187                    "one.png": "BINARYDATAHERE",
11188                    "two.ipynb": "{ totally a notebook }",
11189                    "three.txt": "editing text, sure why not?"
11190                }),
11191            )
11192            .await;
11193
11194            let project = Project::test(fs, ["root1".as_ref()], cx).await;
11195            let (workspace, cx) =
11196                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11197
11198            let worktree_id = project.update(cx, |project, cx| {
11199                project.worktrees(cx).next().unwrap().read(cx).id()
11200            });
11201
11202            let handle = workspace
11203                .update_in(cx, |workspace, window, cx| {
11204                    let project_path = (worktree_id, rel_path("one.png"));
11205                    workspace.open_path(project_path, None, true, window, cx)
11206                })
11207                .await
11208                .unwrap();
11209
11210            // Now we can check if the handle we got back errored or not
11211            assert_eq!(
11212                handle.to_any().entity_type(),
11213                TypeId::of::<TestPngItemView>()
11214            );
11215
11216            let handle = workspace
11217                .update_in(cx, |workspace, window, cx| {
11218                    let project_path = (worktree_id, rel_path("two.ipynb"));
11219                    workspace.open_path(project_path, None, true, window, cx)
11220                })
11221                .await
11222                .unwrap();
11223
11224            assert_eq!(
11225                handle.to_any().entity_type(),
11226                TypeId::of::<TestIpynbItemView>()
11227            );
11228
11229            let handle = workspace
11230                .update_in(cx, |workspace, window, cx| {
11231                    let project_path = (worktree_id, rel_path("three.txt"));
11232                    workspace.open_path(project_path, None, true, window, cx)
11233                })
11234                .await;
11235            assert!(handle.is_err());
11236        }
11237
11238        #[gpui::test]
11239        async fn test_register_project_item_two_enter_one_leaves(cx: &mut TestAppContext) {
11240            init_test(cx);
11241
11242            cx.update(|cx| {
11243                register_project_item::<TestPngItemView>(cx);
11244                register_project_item::<TestAlternatePngItemView>(cx);
11245            });
11246
11247            let fs = FakeFs::new(cx.executor());
11248            fs.insert_tree(
11249                "/root1",
11250                json!({
11251                    "one.png": "BINARYDATAHERE",
11252                    "two.ipynb": "{ totally a notebook }",
11253                    "three.txt": "editing text, sure why not?"
11254                }),
11255            )
11256            .await;
11257            let project = Project::test(fs, ["root1".as_ref()], cx).await;
11258            let (workspace, cx) =
11259                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11260            let worktree_id = project.update(cx, |project, cx| {
11261                project.worktrees(cx).next().unwrap().read(cx).id()
11262            });
11263
11264            let handle = workspace
11265                .update_in(cx, |workspace, window, cx| {
11266                    let project_path = (worktree_id, rel_path("one.png"));
11267                    workspace.open_path(project_path, None, true, window, cx)
11268                })
11269                .await
11270                .unwrap();
11271
11272            // This _must_ be the second item registered
11273            assert_eq!(
11274                handle.to_any().entity_type(),
11275                TypeId::of::<TestAlternatePngItemView>()
11276            );
11277
11278            let handle = workspace
11279                .update_in(cx, |workspace, window, cx| {
11280                    let project_path = (worktree_id, rel_path("three.txt"));
11281                    workspace.open_path(project_path, None, true, window, cx)
11282                })
11283                .await;
11284            assert!(handle.is_err());
11285        }
11286    }
11287
11288    #[gpui::test]
11289    async fn test_status_bar_visibility(cx: &mut TestAppContext) {
11290        init_test(cx);
11291
11292        let fs = FakeFs::new(cx.executor());
11293        let project = Project::test(fs, [], cx).await;
11294        let (workspace, _cx) =
11295            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11296
11297        // Test with status bar shown (default)
11298        workspace.read_with(cx, |workspace, cx| {
11299            let visible = workspace.status_bar_visible(cx);
11300            assert!(visible, "Status bar should be visible by default");
11301        });
11302
11303        // Test with status bar hidden
11304        cx.update_global(|store: &mut SettingsStore, cx| {
11305            store.update_user_settings(cx, |settings| {
11306                settings.status_bar.get_or_insert_default().show = Some(false);
11307            });
11308        });
11309
11310        workspace.read_with(cx, |workspace, cx| {
11311            let visible = workspace.status_bar_visible(cx);
11312            assert!(!visible, "Status bar should be hidden when show is false");
11313        });
11314
11315        // Test with status bar shown explicitly
11316        cx.update_global(|store: &mut SettingsStore, cx| {
11317            store.update_user_settings(cx, |settings| {
11318                settings.status_bar.get_or_insert_default().show = Some(true);
11319            });
11320        });
11321
11322        workspace.read_with(cx, |workspace, cx| {
11323            let visible = workspace.status_bar_visible(cx);
11324            assert!(visible, "Status bar should be visible when show is true");
11325        });
11326    }
11327
11328    fn pane_items_paths(pane: &Entity<Pane>, cx: &App) -> Vec<String> {
11329        pane.read(cx)
11330            .items()
11331            .flat_map(|item| {
11332                item.project_paths(cx)
11333                    .into_iter()
11334                    .map(|path| path.path.display(PathStyle::local()).into_owned())
11335            })
11336            .collect()
11337    }
11338
11339    pub fn init_test(cx: &mut TestAppContext) {
11340        cx.update(|cx| {
11341            let settings_store = SettingsStore::test(cx);
11342            cx.set_global(settings_store);
11343            theme::init(theme::LoadThemes::JustBase, cx);
11344            language::init(cx);
11345            crate::init_settings(cx);
11346            Project::init_settings(cx);
11347        });
11348    }
11349
11350    fn dirty_project_item(id: u64, path: &str, cx: &mut App) -> Entity<TestProjectItem> {
11351        let item = TestProjectItem::new(id, path, cx);
11352        item.update(cx, |item, _| {
11353            item.is_dirty = true;
11354        });
11355        item
11356    }
11357}