workspace.rs

    1pub mod dock;
    2pub mod history_manager;
    3pub mod item;
    4mod modal_layer;
    5pub mod notifications;
    6pub mod pane;
    7pub mod pane_group;
    8mod persistence;
    9pub mod searchable;
   10pub mod shared_screen;
   11mod status_bar;
   12pub mod tasks;
   13mod theme_preview;
   14mod toast_layer;
   15mod toolbar;
   16mod workspace_settings;
   17
   18pub use crate::notifications::NotificationFrame;
   19pub use dock::Panel;
   20pub use toast_layer::{ToastAction, ToastLayer, ToastView};
   21
   22use anyhow::{Context as _, Result, anyhow};
   23use call::{ActiveCall, call_settings::CallSettings};
   24use client::{
   25    ChannelId, Client, ErrorExt, Status, TypedEnvelope, UserStore,
   26    proto::{self, ErrorCode, PanelId, PeerId},
   27};
   28use collections::{HashMap, HashSet, hash_map};
   29use dock::{Dock, DockPosition, PanelButtons, PanelHandle, RESIZE_HANDLE_SIZE};
   30use futures::{
   31    Future, FutureExt, StreamExt,
   32    channel::{
   33        mpsc::{self, UnboundedReceiver, UnboundedSender},
   34        oneshot,
   35    },
   36    future::{Shared, try_join_all},
   37};
   38use gpui::{
   39    Action, AnyEntity, AnyView, AnyWeakView, App, AsyncApp, AsyncWindowContext, Bounds, Context,
   40    CursorStyle, Decorations, DragMoveEvent, Entity, EntityId, EventEmitter, FocusHandle,
   41    Focusable, Global, HitboxBehavior, Hsla, KeyContext, Keystroke, ManagedView, MouseButton,
   42    PathPromptOptions, Point, PromptLevel, Render, ResizeEdge, Size, Stateful, Subscription, Task,
   43    Tiling, WeakEntity, WindowBounds, WindowHandle, WindowId, WindowOptions, actions, canvas,
   44    point, relative, size, transparent_black,
   45};
   46pub use history_manager::*;
   47pub use item::{
   48    FollowableItem, FollowableItemHandle, Item, ItemHandle, ItemSettings, PreviewTabsSettings,
   49    ProjectItem, SerializableItem, SerializableItemHandle, WeakItemHandle,
   50};
   51use itertools::Itertools;
   52use language::{
   53    Buffer, LanguageRegistry, Rope,
   54    language_settings::{AllLanguageSettings, all_language_settings},
   55};
   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::*;
   64use persistence::{
   65    DB, SerializedWindowBounds,
   66    model::{SerializedSshProject, SerializedWorkspace},
   67};
   68pub use persistence::{
   69    DB as WORKSPACE_DB, WorkspaceDb, delete_unloaded_items,
   70    model::{ItemId, LocalPaths, SerializedWorkspaceLocation},
   71};
   72use postage::stream::Stream;
   73use project::{
   74    DirectoryLister, Project, ProjectEntryId, ProjectPath, ResolvedPath, Worktree, WorktreeId,
   75    debugger::{breakpoint_store::BreakpointStoreEvent, session::ThreadStatus},
   76};
   77use remote::{SshClientDelegate, SshConnectionOptions, ssh_session::ConnectionIdentifier};
   78use schemars::JsonSchema;
   79use serde::Deserialize;
   80use session::AppSession;
   81use settings::{Settings, update_settings_file};
   82use shared_screen::SharedScreen;
   83use sqlez::{
   84    bindable::{Bind, Column, StaticColumnCount},
   85    statement::Statement,
   86};
   87use status_bar::StatusBar;
   88pub use status_bar::StatusItemView;
   89use std::{
   90    any::TypeId,
   91    borrow::Cow,
   92    cell::RefCell,
   93    cmp,
   94    collections::{VecDeque, hash_map::DefaultHasher},
   95    env,
   96    hash::{Hash, Hasher},
   97    path::{Path, PathBuf},
   98    process::ExitStatus,
   99    rc::Rc,
  100    sync::{Arc, LazyLock, Weak, atomic::AtomicUsize},
  101    time::Duration,
  102};
  103use task::{DebugScenario, SpawnInTerminal, TaskContext};
  104use theme::{ActiveTheme, SystemAppearance, ThemeSettings};
  105pub use toolbar::{Toolbar, ToolbarItemEvent, ToolbarItemLocation, ToolbarItemView};
  106pub use ui;
  107use ui::{Window, prelude::*};
  108use util::{ResultExt, TryFutureExt, paths::SanitizedPath, serde::default_true};
  109use uuid::Uuid;
  110pub use workspace_settings::{
  111    AutosaveSetting, BottomDockLayout, RestoreOnStartupBehavior, TabBarSettings, WorkspaceSettings,
  112};
  113use zed_actions::{Spawn, feedback::FileBugReport};
  114
  115use crate::notifications::NotificationId;
  116use crate::persistence::{
  117    SerializedAxis,
  118    model::{DockData, DockStructure, SerializedItem, SerializedPane, SerializedPaneGroup},
  119};
  120
  121pub const SERIALIZATION_THROTTLE_TIME: Duration = Duration::from_millis(200);
  122
  123static ZED_WINDOW_SIZE: LazyLock<Option<Size<Pixels>>> = LazyLock::new(|| {
  124    env::var("ZED_WINDOW_SIZE")
  125        .ok()
  126        .as_deref()
  127        .and_then(parse_pixel_size_env_var)
  128});
  129
  130static ZED_WINDOW_POSITION: LazyLock<Option<Point<Pixels>>> = LazyLock::new(|| {
  131    env::var("ZED_WINDOW_POSITION")
  132        .ok()
  133        .as_deref()
  134        .and_then(parse_pixel_position_env_var)
  135});
  136
  137pub trait TerminalProvider {
  138    fn spawn(
  139        &self,
  140        task: SpawnInTerminal,
  141        window: &mut Window,
  142        cx: &mut App,
  143    ) -> Task<Option<Result<ExitStatus>>>;
  144}
  145
  146pub trait DebuggerProvider {
  147    // `active_buffer` is used to resolve build task's name against language-specific tasks.
  148    fn start_session(
  149        &self,
  150        definition: DebugScenario,
  151        task_context: TaskContext,
  152        active_buffer: Option<Entity<Buffer>>,
  153        worktree_id: Option<WorktreeId>,
  154        window: &mut Window,
  155        cx: &mut App,
  156    );
  157
  158    fn spawn_task_or_modal(
  159        &self,
  160        workspace: &mut Workspace,
  161        action: &Spawn,
  162        window: &mut Window,
  163        cx: &mut Context<Workspace>,
  164    );
  165
  166    fn task_scheduled(&self, cx: &mut App);
  167    fn debug_scenario_scheduled(&self, cx: &mut App);
  168    fn debug_scenario_scheduled_last(&self, cx: &App) -> bool;
  169
  170    fn active_thread_state(&self, cx: &App) -> Option<ThreadStatus>;
  171}
  172
  173actions!(
  174    workspace,
  175    [
  176        /// Activates the next pane in the workspace.
  177        ActivateNextPane,
  178        /// Activates the previous pane in the workspace.
  179        ActivatePreviousPane,
  180        /// Switches to the next window.
  181        ActivateNextWindow,
  182        /// Switches to the previous window.
  183        ActivatePreviousWindow,
  184        /// Adds a folder to the current project.
  185        AddFolderToProject,
  186        /// Clears all notifications.
  187        ClearAllNotifications,
  188        /// Closes the active dock.
  189        CloseActiveDock,
  190        /// Closes all docks.
  191        CloseAllDocks,
  192        /// Closes the current window.
  193        CloseWindow,
  194        /// Opens the feedback dialog.
  195        Feedback,
  196        /// Follows the next collaborator in the session.
  197        FollowNextCollaborator,
  198        /// Moves the focused panel to the next position.
  199        MoveFocusedPanelToNextPosition,
  200        /// Opens a new terminal in the center.
  201        NewCenterTerminal,
  202        /// Creates a new file.
  203        NewFile,
  204        /// Creates a new file in a vertical split.
  205        NewFileSplitVertical,
  206        /// Creates a new file in a horizontal split.
  207        NewFileSplitHorizontal,
  208        /// Opens a new search.
  209        NewSearch,
  210        /// Opens a new terminal.
  211        NewTerminal,
  212        /// Opens a new window.
  213        NewWindow,
  214        /// Opens a file or directory.
  215        Open,
  216        /// Opens multiple files.
  217        OpenFiles,
  218        /// Opens the current location in terminal.
  219        OpenInTerminal,
  220        /// Opens the component preview.
  221        OpenComponentPreview,
  222        /// Reloads the active item.
  223        ReloadActiveItem,
  224        /// Resets the active dock to its default size.
  225        ResetActiveDockSize,
  226        /// Resets all open docks to their default sizes.
  227        ResetOpenDocksSize,
  228        /// Reloads the application
  229        Reload,
  230        /// Saves the current file with a new name.
  231        SaveAs,
  232        /// Saves without formatting.
  233        SaveWithoutFormat,
  234        /// Shuts down all debug adapters.
  235        ShutdownDebugAdapters,
  236        /// Suppresses the current notification.
  237        SuppressNotification,
  238        /// Toggles the bottom dock.
  239        ToggleBottomDock,
  240        /// Toggles centered layout mode.
  241        ToggleCenteredLayout,
  242        /// Toggles edit prediction feature globally for all files.
  243        ToggleEditPrediction,
  244        /// Toggles the left dock.
  245        ToggleLeftDock,
  246        /// Toggles the right dock.
  247        ToggleRightDock,
  248        /// Toggles zoom on the active pane.
  249        ToggleZoom,
  250        /// Stops following a collaborator.
  251        Unfollow,
  252        /// Restores the banner.
  253        RestoreBanner,
  254        /// Toggles expansion of the selected item.
  255        ToggleExpandItem,
  256    ]
  257);
  258
  259#[derive(Clone, PartialEq)]
  260pub struct OpenPaths {
  261    pub paths: Vec<PathBuf>,
  262}
  263
  264/// Activates a specific pane by its index.
  265#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  266#[action(namespace = workspace)]
  267pub struct ActivatePane(pub usize);
  268
  269/// Moves an item to a specific pane by index.
  270#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  271#[action(namespace = workspace)]
  272#[serde(deny_unknown_fields)]
  273pub struct MoveItemToPane {
  274    #[serde(default = "default_1")]
  275    pub destination: usize,
  276    #[serde(default = "default_true")]
  277    pub focus: bool,
  278    #[serde(default)]
  279    pub clone: bool,
  280}
  281
  282fn default_1() -> usize {
  283    1
  284}
  285
  286/// Moves an item to a pane in the specified direction.
  287#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  288#[action(namespace = workspace)]
  289#[serde(deny_unknown_fields)]
  290pub struct MoveItemToPaneInDirection {
  291    #[serde(default = "default_right")]
  292    pub direction: SplitDirection,
  293    #[serde(default = "default_true")]
  294    pub focus: bool,
  295    #[serde(default)]
  296    pub clone: bool,
  297}
  298
  299fn default_right() -> SplitDirection {
  300    SplitDirection::Right
  301}
  302
  303/// Saves all open files in the workspace.
  304#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  305#[action(namespace = workspace)]
  306#[serde(deny_unknown_fields)]
  307pub struct SaveAll {
  308    #[serde(default)]
  309    pub save_intent: Option<SaveIntent>,
  310}
  311
  312/// Saves the current file with the specified options.
  313#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  314#[action(namespace = workspace)]
  315#[serde(deny_unknown_fields)]
  316pub struct Save {
  317    #[serde(default)]
  318    pub save_intent: Option<SaveIntent>,
  319}
  320
  321/// Closes all items and panes in the workspace.
  322#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  323#[action(namespace = workspace)]
  324#[serde(deny_unknown_fields)]
  325pub struct CloseAllItemsAndPanes {
  326    #[serde(default)]
  327    pub save_intent: Option<SaveIntent>,
  328}
  329
  330/// Closes all inactive tabs and panes in the workspace.
  331#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  332#[action(namespace = workspace)]
  333#[serde(deny_unknown_fields)]
  334pub struct CloseInactiveTabsAndPanes {
  335    #[serde(default)]
  336    pub save_intent: Option<SaveIntent>,
  337}
  338
  339/// Sends a sequence of keystrokes to the active element.
  340#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  341#[action(namespace = workspace)]
  342pub struct SendKeystrokes(pub String);
  343
  344actions!(
  345    project_symbols,
  346    [
  347        /// Toggles the project symbols search.
  348        #[action(name = "Toggle")]
  349        ToggleProjectSymbols
  350    ]
  351);
  352
  353/// Toggles the file finder interface.
  354#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  355#[action(namespace = file_finder, name = "Toggle")]
  356#[serde(deny_unknown_fields)]
  357pub struct ToggleFileFinder {
  358    #[serde(default)]
  359    pub separate_history: bool,
  360}
  361
  362/// Increases size of a currently focused dock by a given amount of pixels.
  363#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  364#[action(namespace = workspace)]
  365#[serde(deny_unknown_fields)]
  366pub struct IncreaseActiveDockSize {
  367    /// For 0px parameter, uses UI font size value.
  368    #[serde(default)]
  369    pub px: u32,
  370}
  371
  372/// Decreases size of a currently focused dock by a given amount of pixels.
  373#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  374#[action(namespace = workspace)]
  375#[serde(deny_unknown_fields)]
  376pub struct DecreaseActiveDockSize {
  377    /// For 0px parameter, uses UI font size value.
  378    #[serde(default)]
  379    pub px: u32,
  380}
  381
  382/// Increases size of all currently visible docks uniformly, by a given amount of pixels.
  383#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  384#[action(namespace = workspace)]
  385#[serde(deny_unknown_fields)]
  386pub struct IncreaseOpenDocksSize {
  387    /// For 0px parameter, uses UI font size value.
  388    #[serde(default)]
  389    pub px: u32,
  390}
  391
  392/// Decreases size of all currently visible docks uniformly, by a given amount of pixels.
  393#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  394#[action(namespace = workspace)]
  395#[serde(deny_unknown_fields)]
  396pub struct DecreaseOpenDocksSize {
  397    /// For 0px parameter, uses UI font size value.
  398    #[serde(default)]
  399    pub px: u32,
  400}
  401
  402actions!(
  403    workspace,
  404    [
  405        /// Activates the pane to the left.
  406        ActivatePaneLeft,
  407        /// Activates the pane to the right.
  408        ActivatePaneRight,
  409        /// Activates the pane above.
  410        ActivatePaneUp,
  411        /// Activates the pane below.
  412        ActivatePaneDown,
  413        /// Swaps the current pane with the one to the left.
  414        SwapPaneLeft,
  415        /// Swaps the current pane with the one to the right.
  416        SwapPaneRight,
  417        /// Swaps the current pane with the one above.
  418        SwapPaneUp,
  419        /// Swaps the current pane with the one below.
  420        SwapPaneDown,
  421    ]
  422);
  423
  424#[derive(PartialEq, Eq, Debug)]
  425pub enum CloseIntent {
  426    /// Quit the program entirely.
  427    Quit,
  428    /// Close a window.
  429    CloseWindow,
  430    /// Replace the workspace in an existing window.
  431    ReplaceWindow,
  432}
  433
  434#[derive(Clone)]
  435pub struct Toast {
  436    id: NotificationId,
  437    msg: Cow<'static, str>,
  438    autohide: bool,
  439    on_click: Option<(Cow<'static, str>, Arc<dyn Fn(&mut Window, &mut App)>)>,
  440}
  441
  442impl Toast {
  443    pub fn new<I: Into<Cow<'static, str>>>(id: NotificationId, msg: I) -> Self {
  444        Toast {
  445            id,
  446            msg: msg.into(),
  447            on_click: None,
  448            autohide: false,
  449        }
  450    }
  451
  452    pub fn on_click<F, M>(mut self, message: M, on_click: F) -> Self
  453    where
  454        M: Into<Cow<'static, str>>,
  455        F: Fn(&mut Window, &mut App) + 'static,
  456    {
  457        self.on_click = Some((message.into(), Arc::new(on_click)));
  458        self
  459    }
  460
  461    pub fn autohide(mut self) -> Self {
  462        self.autohide = true;
  463        self
  464    }
  465}
  466
  467impl PartialEq for Toast {
  468    fn eq(&self, other: &Self) -> bool {
  469        self.id == other.id
  470            && self.msg == other.msg
  471            && self.on_click.is_some() == other.on_click.is_some()
  472    }
  473}
  474
  475/// Opens a new terminal with the specified working directory.
  476#[derive(Debug, Default, Clone, Deserialize, PartialEq, JsonSchema, Action)]
  477#[action(namespace = workspace)]
  478#[serde(deny_unknown_fields)]
  479pub struct OpenTerminal {
  480    pub working_directory: PathBuf,
  481}
  482
  483#[derive(Clone, Copy, Debug, Default, Hash, PartialEq, Eq, PartialOrd, Ord)]
  484pub struct WorkspaceId(i64);
  485
  486impl StaticColumnCount for WorkspaceId {}
  487impl Bind for WorkspaceId {
  488    fn bind(&self, statement: &Statement, start_index: i32) -> Result<i32> {
  489        self.0.bind(statement, start_index)
  490    }
  491}
  492impl Column for WorkspaceId {
  493    fn column(statement: &mut Statement, start_index: i32) -> Result<(Self, i32)> {
  494        i64::column(statement, start_index)
  495            .map(|(i, next_index)| (Self(i), next_index))
  496            .with_context(|| format!("Failed to read WorkspaceId at index {start_index}"))
  497    }
  498}
  499impl From<WorkspaceId> for i64 {
  500    fn from(val: WorkspaceId) -> Self {
  501        val.0
  502    }
  503}
  504
  505pub fn init_settings(cx: &mut App) {
  506    WorkspaceSettings::register(cx);
  507    ItemSettings::register(cx);
  508    PreviewTabsSettings::register(cx);
  509    TabBarSettings::register(cx);
  510}
  511
  512fn prompt_and_open_paths(app_state: Arc<AppState>, options: PathPromptOptions, cx: &mut App) {
  513    let paths = cx.prompt_for_paths(options);
  514    cx.spawn(
  515        async move |cx| match paths.await.anyhow().and_then(|res| res) {
  516            Ok(Some(paths)) => {
  517                cx.update(|cx| {
  518                    open_paths(&paths, app_state, OpenOptions::default(), cx).detach_and_log_err(cx)
  519                })
  520                .ok();
  521            }
  522            Ok(None) => {}
  523            Err(err) => {
  524                util::log_err(&err);
  525                cx.update(|cx| {
  526                    if let Some(workspace_window) = cx
  527                        .active_window()
  528                        .and_then(|window| window.downcast::<Workspace>())
  529                    {
  530                        workspace_window
  531                            .update(cx, |workspace, _, cx| {
  532                                workspace.show_portal_error(err.to_string(), cx);
  533                            })
  534                            .ok();
  535                    }
  536                })
  537                .ok();
  538            }
  539        },
  540    )
  541    .detach();
  542}
  543
  544pub fn init(app_state: Arc<AppState>, cx: &mut App) {
  545    init_settings(cx);
  546    component::init();
  547    theme_preview::init(cx);
  548    toast_layer::init(cx);
  549    history_manager::init(cx);
  550
  551    cx.on_action(|_: &CloseWindow, cx| Workspace::close_global(cx));
  552    cx.on_action(|_: &Reload, cx| reload(cx));
  553
  554    cx.on_action({
  555        let app_state = Arc::downgrade(&app_state);
  556        move |_: &Open, cx: &mut App| {
  557            if let Some(app_state) = app_state.upgrade() {
  558                prompt_and_open_paths(
  559                    app_state,
  560                    PathPromptOptions {
  561                        files: true,
  562                        directories: true,
  563                        multiple: true,
  564                        prompt: None,
  565                    },
  566                    cx,
  567                );
  568            }
  569        }
  570    });
  571    cx.on_action({
  572        let app_state = Arc::downgrade(&app_state);
  573        move |_: &OpenFiles, cx: &mut App| {
  574            let directories = cx.can_select_mixed_files_and_dirs();
  575            if let Some(app_state) = app_state.upgrade() {
  576                prompt_and_open_paths(
  577                    app_state,
  578                    PathPromptOptions {
  579                        files: true,
  580                        directories,
  581                        multiple: true,
  582                        prompt: None,
  583                    },
  584                    cx,
  585                );
  586            }
  587        }
  588    });
  589}
  590
  591type BuildProjectItemFn =
  592    fn(AnyEntity, Entity<Project>, Option<&Pane>, &mut Window, &mut App) -> Box<dyn ItemHandle>;
  593
  594type BuildProjectItemForPathFn =
  595    fn(
  596        &Entity<Project>,
  597        &ProjectPath,
  598        &mut Window,
  599        &mut App,
  600    ) -> Option<Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>>>;
  601
  602#[derive(Clone, Default)]
  603struct ProjectItemRegistry {
  604    build_project_item_fns_by_type: HashMap<TypeId, BuildProjectItemFn>,
  605    build_project_item_for_path_fns: Vec<BuildProjectItemForPathFn>,
  606}
  607
  608impl ProjectItemRegistry {
  609    fn register<T: ProjectItem>(&mut self) {
  610        self.build_project_item_fns_by_type.insert(
  611            TypeId::of::<T::Item>(),
  612            |item, project, pane, window, cx| {
  613                let item = item.downcast().unwrap();
  614                Box::new(cx.new(|cx| T::for_project_item(project, pane, item, window, cx)))
  615                    as Box<dyn ItemHandle>
  616            },
  617        );
  618        self.build_project_item_for_path_fns
  619            .push(|project, project_path, window, cx| {
  620                let project_item =
  621                    <T::Item as project::ProjectItem>::try_open(project, project_path, cx)?;
  622                let project = project.clone();
  623                Some(window.spawn(cx, async move |cx| {
  624                    let project_item = project_item.await?;
  625                    let project_entry_id: Option<ProjectEntryId> =
  626                        project_item.read_with(cx, project::ProjectItem::entry_id)?;
  627                    let build_workspace_item = Box::new(
  628                        |pane: &mut Pane, window: &mut Window, cx: &mut Context<Pane>| {
  629                            Box::new(cx.new(|cx| {
  630                                T::for_project_item(project, Some(pane), project_item, window, cx)
  631                            })) as Box<dyn ItemHandle>
  632                        },
  633                    ) as Box<_>;
  634                    Ok((project_entry_id, build_workspace_item))
  635                }))
  636            });
  637    }
  638
  639    fn open_path(
  640        &self,
  641        project: &Entity<Project>,
  642        path: &ProjectPath,
  643        window: &mut Window,
  644        cx: &mut App,
  645    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
  646        let Some(open_project_item) = self
  647            .build_project_item_for_path_fns
  648            .iter()
  649            .rev()
  650            .find_map(|open_project_item| open_project_item(project, path, window, cx))
  651        else {
  652            return Task::ready(Err(anyhow!("cannot open file {:?}", path.path)));
  653        };
  654        open_project_item
  655    }
  656
  657    fn build_item<T: project::ProjectItem>(
  658        &self,
  659        item: Entity<T>,
  660        project: Entity<Project>,
  661        pane: Option<&Pane>,
  662        window: &mut Window,
  663        cx: &mut App,
  664    ) -> Option<Box<dyn ItemHandle>> {
  665        let build = self
  666            .build_project_item_fns_by_type
  667            .get(&TypeId::of::<T>())?;
  668        Some(build(item.into_any(), project, pane, window, cx))
  669    }
  670}
  671
  672type WorkspaceItemBuilder =
  673    Box<dyn FnOnce(&mut Pane, &mut Window, &mut Context<Pane>) -> Box<dyn ItemHandle>>;
  674
  675impl Global for ProjectItemRegistry {}
  676
  677/// Registers a [ProjectItem] for the app. When opening a file, all the registered
  678/// items will get a chance to open the file, starting from the project item that
  679/// was added last.
  680pub fn register_project_item<I: ProjectItem>(cx: &mut App) {
  681    cx.default_global::<ProjectItemRegistry>().register::<I>();
  682}
  683
  684#[derive(Default)]
  685pub struct FollowableViewRegistry(HashMap<TypeId, FollowableViewDescriptor>);
  686
  687struct FollowableViewDescriptor {
  688    from_state_proto: fn(
  689        Entity<Workspace>,
  690        ViewId,
  691        &mut Option<proto::view::Variant>,
  692        &mut Window,
  693        &mut App,
  694    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>>,
  695    to_followable_view: fn(&AnyView) -> Box<dyn FollowableItemHandle>,
  696}
  697
  698impl Global for FollowableViewRegistry {}
  699
  700impl FollowableViewRegistry {
  701    pub fn register<I: FollowableItem>(cx: &mut App) {
  702        cx.default_global::<Self>().0.insert(
  703            TypeId::of::<I>(),
  704            FollowableViewDescriptor {
  705                from_state_proto: |workspace, id, state, window, cx| {
  706                    I::from_state_proto(workspace, id, state, window, cx).map(|task| {
  707                        cx.foreground_executor()
  708                            .spawn(async move { Ok(Box::new(task.await?) as Box<_>) })
  709                    })
  710                },
  711                to_followable_view: |view| Box::new(view.clone().downcast::<I>().unwrap()),
  712            },
  713        );
  714    }
  715
  716    pub fn from_state_proto(
  717        workspace: Entity<Workspace>,
  718        view_id: ViewId,
  719        mut state: Option<proto::view::Variant>,
  720        window: &mut Window,
  721        cx: &mut App,
  722    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>> {
  723        cx.update_default_global(|this: &mut Self, cx| {
  724            this.0.values().find_map(|descriptor| {
  725                (descriptor.from_state_proto)(workspace.clone(), view_id, &mut state, window, cx)
  726            })
  727        })
  728    }
  729
  730    pub fn to_followable_view(
  731        view: impl Into<AnyView>,
  732        cx: &App,
  733    ) -> Option<Box<dyn FollowableItemHandle>> {
  734        let this = cx.try_global::<Self>()?;
  735        let view = view.into();
  736        let descriptor = this.0.get(&view.entity_type())?;
  737        Some((descriptor.to_followable_view)(&view))
  738    }
  739}
  740
  741#[derive(Copy, Clone)]
  742struct SerializableItemDescriptor {
  743    deserialize: fn(
  744        Entity<Project>,
  745        WeakEntity<Workspace>,
  746        WorkspaceId,
  747        ItemId,
  748        &mut Window,
  749        &mut Context<Pane>,
  750    ) -> Task<Result<Box<dyn ItemHandle>>>,
  751    cleanup: fn(WorkspaceId, Vec<ItemId>, &mut Window, &mut App) -> Task<Result<()>>,
  752    view_to_serializable_item: fn(AnyView) -> Box<dyn SerializableItemHandle>,
  753}
  754
  755#[derive(Default)]
  756struct SerializableItemRegistry {
  757    descriptors_by_kind: HashMap<Arc<str>, SerializableItemDescriptor>,
  758    descriptors_by_type: HashMap<TypeId, SerializableItemDescriptor>,
  759}
  760
  761impl Global for SerializableItemRegistry {}
  762
  763impl SerializableItemRegistry {
  764    fn deserialize(
  765        item_kind: &str,
  766        project: Entity<Project>,
  767        workspace: WeakEntity<Workspace>,
  768        workspace_id: WorkspaceId,
  769        item_item: ItemId,
  770        window: &mut Window,
  771        cx: &mut Context<Pane>,
  772    ) -> Task<Result<Box<dyn ItemHandle>>> {
  773        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
  774            return Task::ready(Err(anyhow!(
  775                "cannot deserialize {}, descriptor not found",
  776                item_kind
  777            )));
  778        };
  779
  780        (descriptor.deserialize)(project, workspace, workspace_id, item_item, window, cx)
  781    }
  782
  783    fn cleanup(
  784        item_kind: &str,
  785        workspace_id: WorkspaceId,
  786        loaded_items: Vec<ItemId>,
  787        window: &mut Window,
  788        cx: &mut App,
  789    ) -> Task<Result<()>> {
  790        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
  791            return Task::ready(Err(anyhow!(
  792                "cannot cleanup {}, descriptor not found",
  793                item_kind
  794            )));
  795        };
  796
  797        (descriptor.cleanup)(workspace_id, loaded_items, window, cx)
  798    }
  799
  800    fn view_to_serializable_item_handle(
  801        view: AnyView,
  802        cx: &App,
  803    ) -> Option<Box<dyn SerializableItemHandle>> {
  804        let this = cx.try_global::<Self>()?;
  805        let descriptor = this.descriptors_by_type.get(&view.entity_type())?;
  806        Some((descriptor.view_to_serializable_item)(view))
  807    }
  808
  809    fn descriptor(item_kind: &str, cx: &App) -> Option<SerializableItemDescriptor> {
  810        let this = cx.try_global::<Self>()?;
  811        this.descriptors_by_kind.get(item_kind).copied()
  812    }
  813}
  814
  815pub fn register_serializable_item<I: SerializableItem>(cx: &mut App) {
  816    let serialized_item_kind = I::serialized_item_kind();
  817
  818    let registry = cx.default_global::<SerializableItemRegistry>();
  819    let descriptor = SerializableItemDescriptor {
  820        deserialize: |project, workspace, workspace_id, item_id, window, cx| {
  821            let task = I::deserialize(project, workspace, workspace_id, item_id, window, cx);
  822            cx.foreground_executor()
  823                .spawn(async { Ok(Box::new(task.await?) as Box<_>) })
  824        },
  825        cleanup: |workspace_id, loaded_items, window, cx| {
  826            I::cleanup(workspace_id, loaded_items, window, cx)
  827        },
  828        view_to_serializable_item: |view| Box::new(view.downcast::<I>().unwrap()),
  829    };
  830    registry
  831        .descriptors_by_kind
  832        .insert(Arc::from(serialized_item_kind), descriptor);
  833    registry
  834        .descriptors_by_type
  835        .insert(TypeId::of::<I>(), descriptor);
  836}
  837
  838pub struct AppState {
  839    pub languages: Arc<LanguageRegistry>,
  840    pub client: Arc<Client>,
  841    pub user_store: Entity<UserStore>,
  842    pub workspace_store: Entity<WorkspaceStore>,
  843    pub fs: Arc<dyn fs::Fs>,
  844    pub build_window_options: fn(Option<Uuid>, &mut App) -> WindowOptions,
  845    pub node_runtime: NodeRuntime,
  846    pub session: Entity<AppSession>,
  847}
  848
  849struct GlobalAppState(Weak<AppState>);
  850
  851impl Global for GlobalAppState {}
  852
  853pub struct WorkspaceStore {
  854    workspaces: HashSet<WindowHandle<Workspace>>,
  855    client: Arc<Client>,
  856    _subscriptions: Vec<client::Subscription>,
  857}
  858
  859#[derive(Copy, Clone, Debug, Hash, Eq, PartialEq, PartialOrd, Ord)]
  860pub enum CollaboratorId {
  861    PeerId(PeerId),
  862    Agent,
  863}
  864
  865impl From<PeerId> for CollaboratorId {
  866    fn from(peer_id: PeerId) -> Self {
  867        CollaboratorId::PeerId(peer_id)
  868    }
  869}
  870
  871impl From<&PeerId> for CollaboratorId {
  872    fn from(peer_id: &PeerId) -> Self {
  873        CollaboratorId::PeerId(*peer_id)
  874    }
  875}
  876
  877#[derive(PartialEq, Eq, PartialOrd, Ord, Debug)]
  878struct Follower {
  879    project_id: Option<u64>,
  880    peer_id: PeerId,
  881}
  882
  883impl AppState {
  884    #[track_caller]
  885    pub fn global(cx: &App) -> Weak<Self> {
  886        cx.global::<GlobalAppState>().0.clone()
  887    }
  888    pub fn try_global(cx: &App) -> Option<Weak<Self>> {
  889        cx.try_global::<GlobalAppState>()
  890            .map(|state| state.0.clone())
  891    }
  892    pub fn set_global(state: Weak<AppState>, cx: &mut App) {
  893        cx.set_global(GlobalAppState(state));
  894    }
  895
  896    #[cfg(any(test, feature = "test-support"))]
  897    pub fn test(cx: &mut App) -> Arc<Self> {
  898        use node_runtime::NodeRuntime;
  899        use session::Session;
  900        use settings::SettingsStore;
  901
  902        if !cx.has_global::<SettingsStore>() {
  903            let settings_store = SettingsStore::test(cx);
  904            cx.set_global(settings_store);
  905        }
  906
  907        let fs = fs::FakeFs::new(cx.background_executor().clone());
  908        let languages = Arc::new(LanguageRegistry::test(cx.background_executor().clone()));
  909        let clock = Arc::new(clock::FakeSystemClock::new());
  910        let http_client = http_client::FakeHttpClient::with_404_response();
  911        let client = Client::new(clock, http_client.clone(), cx);
  912        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
  913        let user_store = cx.new(|cx| UserStore::new(client.clone(), cx));
  914        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
  915
  916        theme::init(theme::LoadThemes::JustBase, cx);
  917        client::init(&client, cx);
  918        crate::init_settings(cx);
  919
  920        Arc::new(Self {
  921            client,
  922            fs,
  923            languages,
  924            user_store,
  925            workspace_store,
  926            node_runtime: NodeRuntime::unavailable(),
  927            build_window_options: |_, _| Default::default(),
  928            session,
  929        })
  930    }
  931}
  932
  933struct DelayedDebouncedEditAction {
  934    task: Option<Task<()>>,
  935    cancel_channel: Option<oneshot::Sender<()>>,
  936}
  937
  938impl DelayedDebouncedEditAction {
  939    fn new() -> DelayedDebouncedEditAction {
  940        DelayedDebouncedEditAction {
  941            task: None,
  942            cancel_channel: None,
  943        }
  944    }
  945
  946    fn fire_new<F>(
  947        &mut self,
  948        delay: Duration,
  949        window: &mut Window,
  950        cx: &mut Context<Workspace>,
  951        func: F,
  952    ) where
  953        F: 'static
  954            + Send
  955            + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> Task<Result<()>>,
  956    {
  957        if let Some(channel) = self.cancel_channel.take() {
  958            _ = channel.send(());
  959        }
  960
  961        let (sender, mut receiver) = oneshot::channel::<()>();
  962        self.cancel_channel = Some(sender);
  963
  964        let previous_task = self.task.take();
  965        self.task = Some(cx.spawn_in(window, async move |workspace, cx| {
  966            let mut timer = cx.background_executor().timer(delay).fuse();
  967            if let Some(previous_task) = previous_task {
  968                previous_task.await;
  969            }
  970
  971            futures::select_biased! {
  972                _ = receiver => return,
  973                    _ = timer => {}
  974            }
  975
  976            if let Some(result) = workspace
  977                .update_in(cx, |workspace, window, cx| (func)(workspace, window, cx))
  978                .log_err()
  979            {
  980                result.await.log_err();
  981            }
  982        }));
  983    }
  984}
  985
  986pub enum Event {
  987    PaneAdded(Entity<Pane>),
  988    PaneRemoved,
  989    ItemAdded {
  990        item: Box<dyn ItemHandle>,
  991    },
  992    ItemRemoved,
  993    ActiveItemChanged,
  994    UserSavedItem {
  995        pane: WeakEntity<Pane>,
  996        item: Box<dyn WeakItemHandle>,
  997        save_intent: SaveIntent,
  998    },
  999    ContactRequestedJoin(u64),
 1000    WorkspaceCreated(WeakEntity<Workspace>),
 1001    OpenBundledFile {
 1002        text: Cow<'static, str>,
 1003        title: &'static str,
 1004        language: &'static str,
 1005    },
 1006    ZoomChanged,
 1007    ModalOpened,
 1008    ClearActivityIndicator,
 1009}
 1010
 1011#[derive(Debug)]
 1012pub enum OpenVisible {
 1013    All,
 1014    None,
 1015    OnlyFiles,
 1016    OnlyDirectories,
 1017}
 1018
 1019enum WorkspaceLocation {
 1020    // Valid local paths or SSH project to serialize
 1021    Location(SerializedWorkspaceLocation),
 1022    // No valid location found hence clear session id
 1023    DetachFromSession,
 1024    // No valid location found to serialize
 1025    None,
 1026}
 1027
 1028type PromptForNewPath = Box<
 1029    dyn Fn(
 1030        &mut Workspace,
 1031        DirectoryLister,
 1032        &mut Window,
 1033        &mut Context<Workspace>,
 1034    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1035>;
 1036
 1037type PromptForOpenPath = Box<
 1038    dyn Fn(
 1039        &mut Workspace,
 1040        DirectoryLister,
 1041        &mut Window,
 1042        &mut Context<Workspace>,
 1043    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1044>;
 1045
 1046#[derive(Default)]
 1047struct DispatchingKeystrokes {
 1048    dispatched: HashSet<Vec<Keystroke>>,
 1049    queue: VecDeque<Keystroke>,
 1050    task: Option<Shared<Task<()>>>,
 1051}
 1052
 1053/// Collects everything project-related for a certain window opened.
 1054/// In some way, is a counterpart of a window, as the [`WindowHandle`] could be downcast into `Workspace`.
 1055///
 1056/// A `Workspace` usually consists of 1 or more projects, a central pane group, 3 docks and a status bar.
 1057/// The `Workspace` owns everybody's state and serves as a default, "global context",
 1058/// that can be used to register a global action to be triggered from any place in the window.
 1059pub struct Workspace {
 1060    weak_self: WeakEntity<Self>,
 1061    workspace_actions: Vec<Box<dyn Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div>>,
 1062    zoomed: Option<AnyWeakView>,
 1063    previous_dock_drag_coordinates: Option<Point<Pixels>>,
 1064    zoomed_position: Option<DockPosition>,
 1065    center: PaneGroup,
 1066    left_dock: Entity<Dock>,
 1067    bottom_dock: Entity<Dock>,
 1068    right_dock: Entity<Dock>,
 1069    panes: Vec<Entity<Pane>>,
 1070    panes_by_item: HashMap<EntityId, WeakEntity<Pane>>,
 1071    active_pane: Entity<Pane>,
 1072    last_active_center_pane: Option<WeakEntity<Pane>>,
 1073    last_active_view_id: Option<proto::ViewId>,
 1074    status_bar: Entity<StatusBar>,
 1075    modal_layer: Entity<ModalLayer>,
 1076    toast_layer: Entity<ToastLayer>,
 1077    titlebar_item: Option<AnyView>,
 1078    notifications: Notifications,
 1079    suppressed_notifications: HashSet<NotificationId>,
 1080    project: Entity<Project>,
 1081    follower_states: HashMap<CollaboratorId, FollowerState>,
 1082    last_leaders_by_pane: HashMap<WeakEntity<Pane>, CollaboratorId>,
 1083    window_edited: bool,
 1084    last_window_title: Option<String>,
 1085    dirty_items: HashMap<EntityId, Subscription>,
 1086    active_call: Option<(Entity<ActiveCall>, Vec<Subscription>)>,
 1087    leader_updates_tx: mpsc::UnboundedSender<(PeerId, proto::UpdateFollowers)>,
 1088    database_id: Option<WorkspaceId>,
 1089    app_state: Arc<AppState>,
 1090    dispatching_keystrokes: Rc<RefCell<DispatchingKeystrokes>>,
 1091    _subscriptions: Vec<Subscription>,
 1092    _apply_leader_updates: Task<Result<()>>,
 1093    _observe_current_user: Task<Result<()>>,
 1094    _schedule_serialize_workspace: Option<Task<()>>,
 1095    _schedule_serialize_ssh_paths: Option<Task<()>>,
 1096    pane_history_timestamp: Arc<AtomicUsize>,
 1097    bounds: Bounds<Pixels>,
 1098    pub centered_layout: bool,
 1099    bounds_save_task_queued: Option<Task<()>>,
 1100    on_prompt_for_new_path: Option<PromptForNewPath>,
 1101    on_prompt_for_open_path: Option<PromptForOpenPath>,
 1102    terminal_provider: Option<Box<dyn TerminalProvider>>,
 1103    debugger_provider: Option<Arc<dyn DebuggerProvider>>,
 1104    serializable_items_tx: UnboundedSender<Box<dyn SerializableItemHandle>>,
 1105    serialized_ssh_project: Option<SerializedSshProject>,
 1106    _items_serializer: Task<Result<()>>,
 1107    session_id: Option<String>,
 1108    scheduled_tasks: Vec<Task<()>>,
 1109}
 1110
 1111impl EventEmitter<Event> for Workspace {}
 1112
 1113#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
 1114pub struct ViewId {
 1115    pub creator: CollaboratorId,
 1116    pub id: u64,
 1117}
 1118
 1119pub struct FollowerState {
 1120    center_pane: Entity<Pane>,
 1121    dock_pane: Option<Entity<Pane>>,
 1122    active_view_id: Option<ViewId>,
 1123    items_by_leader_view_id: HashMap<ViewId, FollowerView>,
 1124}
 1125
 1126struct FollowerView {
 1127    view: Box<dyn FollowableItemHandle>,
 1128    location: Option<proto::PanelId>,
 1129}
 1130
 1131impl Workspace {
 1132    const DEFAULT_PADDING: f32 = 0.2;
 1133    const MAX_PADDING: f32 = 0.4;
 1134
 1135    pub fn new(
 1136        workspace_id: Option<WorkspaceId>,
 1137        project: Entity<Project>,
 1138        app_state: Arc<AppState>,
 1139        window: &mut Window,
 1140        cx: &mut Context<Self>,
 1141    ) -> Self {
 1142        cx.subscribe_in(&project, window, move |this, _, event, window, cx| {
 1143            match event {
 1144                project::Event::RemoteIdChanged(_) => {
 1145                    this.update_window_title(window, cx);
 1146                }
 1147
 1148                project::Event::CollaboratorLeft(peer_id) => {
 1149                    this.collaborator_left(*peer_id, window, cx);
 1150                }
 1151
 1152                project::Event::WorktreeRemoved(_) | project::Event::WorktreeAdded(_) => {
 1153                    this.update_window_title(window, cx);
 1154                    this.update_ssh_paths(cx);
 1155                    this.serialize_ssh_paths(window, cx);
 1156                    this.serialize_workspace(window, cx);
 1157                    // This event could be triggered by `AddFolderToProject` or `RemoveFromProject`.
 1158                    this.update_history(cx);
 1159                }
 1160
 1161                project::Event::DisconnectedFromHost => {
 1162                    this.update_window_edited(window, cx);
 1163                    let leaders_to_unfollow =
 1164                        this.follower_states.keys().copied().collect::<Vec<_>>();
 1165                    for leader_id in leaders_to_unfollow {
 1166                        this.unfollow(leader_id, window, cx);
 1167                    }
 1168                }
 1169
 1170                project::Event::DisconnectedFromSshRemote => {
 1171                    this.update_window_edited(window, cx);
 1172                }
 1173
 1174                project::Event::Closed => {
 1175                    window.remove_window();
 1176                }
 1177
 1178                project::Event::DeletedEntry(_, entry_id) => {
 1179                    for pane in this.panes.iter() {
 1180                        pane.update(cx, |pane, cx| {
 1181                            pane.handle_deleted_project_item(*entry_id, window, cx)
 1182                        });
 1183                    }
 1184                }
 1185
 1186                project::Event::Toast {
 1187                    notification_id,
 1188                    message,
 1189                } => this.show_notification(
 1190                    NotificationId::named(notification_id.clone()),
 1191                    cx,
 1192                    |cx| cx.new(|cx| MessageNotification::new(message.clone(), cx)),
 1193                ),
 1194
 1195                project::Event::HideToast { notification_id } => {
 1196                    this.dismiss_notification(&NotificationId::named(notification_id.clone()), cx)
 1197                }
 1198
 1199                project::Event::LanguageServerPrompt(request) => {
 1200                    struct LanguageServerPrompt;
 1201
 1202                    let mut hasher = DefaultHasher::new();
 1203                    request.lsp_name.as_str().hash(&mut hasher);
 1204                    let id = hasher.finish();
 1205
 1206                    this.show_notification(
 1207                        NotificationId::composite::<LanguageServerPrompt>(id as usize),
 1208                        cx,
 1209                        |cx| {
 1210                            cx.new(|cx| {
 1211                                notifications::LanguageServerPrompt::new(request.clone(), cx)
 1212                            })
 1213                        },
 1214                    );
 1215                }
 1216
 1217                project::Event::AgentLocationChanged => {
 1218                    this.handle_agent_location_changed(window, cx)
 1219                }
 1220
 1221                _ => {}
 1222            }
 1223            cx.notify()
 1224        })
 1225        .detach();
 1226
 1227        cx.subscribe_in(
 1228            &project.read(cx).breakpoint_store(),
 1229            window,
 1230            |workspace, _, event, window, cx| match event {
 1231                BreakpointStoreEvent::BreakpointsUpdated(_, _)
 1232                | BreakpointStoreEvent::BreakpointsCleared(_) => {
 1233                    workspace.serialize_workspace(window, cx);
 1234                }
 1235                BreakpointStoreEvent::SetDebugLine | BreakpointStoreEvent::ClearDebugLines => {}
 1236            },
 1237        )
 1238        .detach();
 1239
 1240        cx.on_focus_lost(window, |this, window, cx| {
 1241            let focus_handle = this.focus_handle(cx);
 1242            window.focus(&focus_handle);
 1243        })
 1244        .detach();
 1245
 1246        let weak_handle = cx.entity().downgrade();
 1247        let pane_history_timestamp = Arc::new(AtomicUsize::new(0));
 1248
 1249        let center_pane = cx.new(|cx| {
 1250            let mut center_pane = Pane::new(
 1251                weak_handle.clone(),
 1252                project.clone(),
 1253                pane_history_timestamp.clone(),
 1254                None,
 1255                NewFile.boxed_clone(),
 1256                window,
 1257                cx,
 1258            );
 1259            center_pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 1260            center_pane
 1261        });
 1262        cx.subscribe_in(&center_pane, window, Self::handle_pane_event)
 1263            .detach();
 1264
 1265        window.focus(&center_pane.focus_handle(cx));
 1266
 1267        cx.emit(Event::PaneAdded(center_pane.clone()));
 1268
 1269        let window_handle = window.window_handle().downcast::<Workspace>().unwrap();
 1270        app_state.workspace_store.update(cx, |store, _| {
 1271            store.workspaces.insert(window_handle);
 1272        });
 1273
 1274        let mut current_user = app_state.user_store.read(cx).watch_current_user();
 1275        let mut connection_status = app_state.client.status();
 1276        let _observe_current_user = cx.spawn_in(window, async move |this, cx| {
 1277            current_user.next().await;
 1278            connection_status.next().await;
 1279            let mut stream =
 1280                Stream::map(current_user, drop).merge(Stream::map(connection_status, drop));
 1281
 1282            while stream.recv().await.is_some() {
 1283                this.update(cx, |_, cx| cx.notify())?;
 1284            }
 1285            anyhow::Ok(())
 1286        });
 1287
 1288        // All leader updates are enqueued and then processed in a single task, so
 1289        // that each asynchronous operation can be run in order.
 1290        let (leader_updates_tx, mut leader_updates_rx) =
 1291            mpsc::unbounded::<(PeerId, proto::UpdateFollowers)>();
 1292        let _apply_leader_updates = cx.spawn_in(window, async move |this, cx| {
 1293            while let Some((leader_id, update)) = leader_updates_rx.next().await {
 1294                Self::process_leader_update(&this, leader_id, update, cx)
 1295                    .await
 1296                    .log_err();
 1297            }
 1298
 1299            Ok(())
 1300        });
 1301
 1302        cx.emit(Event::WorkspaceCreated(weak_handle.clone()));
 1303        let modal_layer = cx.new(|_| ModalLayer::new());
 1304        let toast_layer = cx.new(|_| ToastLayer::new());
 1305        cx.subscribe(
 1306            &modal_layer,
 1307            |_, _, _: &modal_layer::ModalOpenedEvent, cx| {
 1308                cx.emit(Event::ModalOpened);
 1309            },
 1310        )
 1311        .detach();
 1312
 1313        let left_dock = Dock::new(DockPosition::Left, modal_layer.clone(), window, cx);
 1314        let bottom_dock = Dock::new(DockPosition::Bottom, modal_layer.clone(), window, cx);
 1315        let right_dock = Dock::new(DockPosition::Right, modal_layer.clone(), window, cx);
 1316        let left_dock_buttons = cx.new(|cx| PanelButtons::new(left_dock.clone(), cx));
 1317        let bottom_dock_buttons = cx.new(|cx| PanelButtons::new(bottom_dock.clone(), cx));
 1318        let right_dock_buttons = cx.new(|cx| PanelButtons::new(right_dock.clone(), cx));
 1319        let status_bar = cx.new(|cx| {
 1320            let mut status_bar = StatusBar::new(&center_pane.clone(), window, cx);
 1321            status_bar.add_left_item(left_dock_buttons, window, cx);
 1322            status_bar.add_right_item(right_dock_buttons, window, cx);
 1323            status_bar.add_right_item(bottom_dock_buttons, window, cx);
 1324            status_bar
 1325        });
 1326
 1327        let session_id = app_state.session.read(cx).id().to_owned();
 1328
 1329        let mut active_call = None;
 1330        if let Some(call) = ActiveCall::try_global(cx) {
 1331            let call = call.clone();
 1332            let subscriptions = vec![cx.subscribe_in(&call, window, Self::on_active_call_event)];
 1333            active_call = Some((call, subscriptions));
 1334        }
 1335
 1336        let (serializable_items_tx, serializable_items_rx) =
 1337            mpsc::unbounded::<Box<dyn SerializableItemHandle>>();
 1338        let _items_serializer = cx.spawn_in(window, async move |this, cx| {
 1339            Self::serialize_items(&this, serializable_items_rx, cx).await
 1340        });
 1341
 1342        let subscriptions = vec![
 1343            cx.observe_window_activation(window, Self::on_window_activation_changed),
 1344            cx.observe_window_bounds(window, move |this, window, cx| {
 1345                if this.bounds_save_task_queued.is_some() {
 1346                    return;
 1347                }
 1348                this.bounds_save_task_queued = Some(cx.spawn_in(window, async move |this, cx| {
 1349                    cx.background_executor()
 1350                        .timer(Duration::from_millis(100))
 1351                        .await;
 1352                    this.update_in(cx, |this, window, cx| {
 1353                        if let Some(display) = window.display(cx) {
 1354                            if let Ok(display_uuid) = display.uuid() {
 1355                                let window_bounds = window.inner_window_bounds();
 1356                                if let Some(database_id) = workspace_id {
 1357                                    cx.background_executor()
 1358                                        .spawn(DB.set_window_open_status(
 1359                                            database_id,
 1360                                            SerializedWindowBounds(window_bounds),
 1361                                            display_uuid,
 1362                                        ))
 1363                                        .detach_and_log_err(cx);
 1364                                }
 1365                            }
 1366                        }
 1367                        this.bounds_save_task_queued.take();
 1368                    })
 1369                    .ok();
 1370                }));
 1371                cx.notify();
 1372            }),
 1373            cx.observe_window_appearance(window, |_, window, cx| {
 1374                let window_appearance = window.appearance();
 1375
 1376                *SystemAppearance::global_mut(cx) = SystemAppearance(window_appearance.into());
 1377
 1378                ThemeSettings::reload_current_theme(cx);
 1379                ThemeSettings::reload_current_icon_theme(cx);
 1380            }),
 1381            cx.on_release(move |this, cx| {
 1382                this.app_state.workspace_store.update(cx, move |store, _| {
 1383                    store.workspaces.remove(&window_handle.clone());
 1384                })
 1385            }),
 1386        ];
 1387
 1388        cx.defer_in(window, |this, window, cx| {
 1389            this.update_window_title(window, cx);
 1390            this.show_initial_notifications(cx);
 1391        });
 1392        Workspace {
 1393            weak_self: weak_handle.clone(),
 1394            zoomed: None,
 1395            zoomed_position: None,
 1396            previous_dock_drag_coordinates: None,
 1397            center: PaneGroup::new(center_pane.clone()),
 1398            panes: vec![center_pane.clone()],
 1399            panes_by_item: Default::default(),
 1400            active_pane: center_pane.clone(),
 1401            last_active_center_pane: Some(center_pane.downgrade()),
 1402            last_active_view_id: None,
 1403            status_bar,
 1404            modal_layer,
 1405            toast_layer,
 1406            titlebar_item: None,
 1407            notifications: Notifications::default(),
 1408            suppressed_notifications: HashSet::default(),
 1409            left_dock,
 1410            bottom_dock,
 1411            right_dock,
 1412            project: project.clone(),
 1413            follower_states: Default::default(),
 1414            last_leaders_by_pane: Default::default(),
 1415            dispatching_keystrokes: Default::default(),
 1416            window_edited: false,
 1417            last_window_title: None,
 1418            dirty_items: Default::default(),
 1419            active_call,
 1420            database_id: workspace_id,
 1421            app_state,
 1422            _observe_current_user,
 1423            _apply_leader_updates,
 1424            _schedule_serialize_workspace: None,
 1425            _schedule_serialize_ssh_paths: None,
 1426            leader_updates_tx,
 1427            _subscriptions: subscriptions,
 1428            pane_history_timestamp,
 1429            workspace_actions: Default::default(),
 1430            // This data will be incorrect, but it will be overwritten by the time it needs to be used.
 1431            bounds: Default::default(),
 1432            centered_layout: false,
 1433            bounds_save_task_queued: None,
 1434            on_prompt_for_new_path: None,
 1435            on_prompt_for_open_path: None,
 1436            terminal_provider: None,
 1437            debugger_provider: None,
 1438            serializable_items_tx,
 1439            _items_serializer,
 1440            session_id: Some(session_id),
 1441            serialized_ssh_project: None,
 1442            scheduled_tasks: Vec::new(),
 1443        }
 1444    }
 1445
 1446    pub fn new_local(
 1447        abs_paths: Vec<PathBuf>,
 1448        app_state: Arc<AppState>,
 1449        requesting_window: Option<WindowHandle<Workspace>>,
 1450        env: Option<HashMap<String, String>>,
 1451        cx: &mut App,
 1452    ) -> Task<
 1453        anyhow::Result<(
 1454            WindowHandle<Workspace>,
 1455            Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 1456        )>,
 1457    > {
 1458        let project_handle = Project::local(
 1459            app_state.client.clone(),
 1460            app_state.node_runtime.clone(),
 1461            app_state.user_store.clone(),
 1462            app_state.languages.clone(),
 1463            app_state.fs.clone(),
 1464            env,
 1465            cx,
 1466        );
 1467
 1468        cx.spawn(async move |cx| {
 1469            let mut paths_to_open = Vec::with_capacity(abs_paths.len());
 1470            for path in abs_paths.into_iter() {
 1471                if let Some(canonical) = app_state.fs.canonicalize(&path).await.ok() {
 1472                    paths_to_open.push(canonical)
 1473                } else {
 1474                    paths_to_open.push(path)
 1475                }
 1476            }
 1477
 1478            let serialized_workspace =
 1479                persistence::DB.workspace_for_roots(paths_to_open.as_slice());
 1480
 1481            let workspace_location = serialized_workspace
 1482                .as_ref()
 1483                .map(|ws| &ws.location)
 1484                .and_then(|loc| match loc {
 1485                    SerializedWorkspaceLocation::Local(_, order) => {
 1486                        Some((loc.sorted_paths(), order.order()))
 1487                    }
 1488                    _ => None,
 1489                });
 1490
 1491            if let Some((paths, order)) = workspace_location {
 1492                paths_to_open = paths.iter().cloned().collect();
 1493
 1494                if order.iter().enumerate().any(|(i, &j)| i != j) {
 1495                    project_handle
 1496                        .update(cx, |project, cx| {
 1497                            project.set_worktrees_reordered(true, cx);
 1498                        })
 1499                        .log_err();
 1500                }
 1501            }
 1502
 1503            // Get project paths for all of the abs_paths
 1504            let mut project_paths: Vec<(PathBuf, Option<ProjectPath>)> =
 1505                Vec::with_capacity(paths_to_open.len());
 1506
 1507            for path in paths_to_open.into_iter() {
 1508                if let Some((_, project_entry)) = cx
 1509                    .update(|cx| {
 1510                        Workspace::project_path_for_path(project_handle.clone(), &path, true, cx)
 1511                    })?
 1512                    .await
 1513                    .log_err()
 1514                {
 1515                    project_paths.push((path, Some(project_entry)));
 1516                } else {
 1517                    project_paths.push((path, None));
 1518                }
 1519            }
 1520
 1521            let workspace_id = if let Some(serialized_workspace) = serialized_workspace.as_ref() {
 1522                serialized_workspace.id
 1523            } else {
 1524                DB.next_id().await.unwrap_or_else(|_| Default::default())
 1525            };
 1526
 1527            let toolchains = DB.toolchains(workspace_id).await?;
 1528
 1529            for (toolchain, worktree_id, path) in toolchains {
 1530                let toolchain_path = PathBuf::from(toolchain.path.clone().to_string());
 1531                if !app_state.fs.is_file(toolchain_path.as_path()).await {
 1532                    continue;
 1533                }
 1534
 1535                project_handle
 1536                    .update(cx, |this, cx| {
 1537                        this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 1538                    })?
 1539                    .await;
 1540            }
 1541            let window = if let Some(window) = requesting_window {
 1542                let centered_layout = serialized_workspace
 1543                    .as_ref()
 1544                    .map(|w| w.centered_layout)
 1545                    .unwrap_or(false);
 1546
 1547                cx.update_window(window.into(), |_, window, cx| {
 1548                    window.replace_root(cx, |window, cx| {
 1549                        let mut workspace = Workspace::new(
 1550                            Some(workspace_id),
 1551                            project_handle.clone(),
 1552                            app_state.clone(),
 1553                            window,
 1554                            cx,
 1555                        );
 1556
 1557                        workspace.centered_layout = centered_layout;
 1558                        workspace
 1559                    });
 1560                })?;
 1561                window
 1562            } else {
 1563                let window_bounds_override = window_bounds_env_override();
 1564
 1565                let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 1566                    (Some(WindowBounds::Windowed(bounds)), None)
 1567                } else {
 1568                    let restorable_bounds = serialized_workspace
 1569                        .as_ref()
 1570                        .and_then(|workspace| Some((workspace.display?, workspace.window_bounds?)))
 1571                        .or_else(|| {
 1572                            let (display, window_bounds) = DB.last_window().log_err()?;
 1573                            Some((display?, window_bounds?))
 1574                        });
 1575
 1576                    if let Some((serialized_display, serialized_status)) = restorable_bounds {
 1577                        (Some(serialized_status.0), Some(serialized_display))
 1578                    } else {
 1579                        (None, None)
 1580                    }
 1581                };
 1582
 1583                // Use the serialized workspace to construct the new window
 1584                let mut options = cx.update(|cx| (app_state.build_window_options)(display, cx))?;
 1585                options.window_bounds = window_bounds;
 1586                let centered_layout = serialized_workspace
 1587                    .as_ref()
 1588                    .map(|w| w.centered_layout)
 1589                    .unwrap_or(false);
 1590                cx.open_window(options, {
 1591                    let app_state = app_state.clone();
 1592                    let project_handle = project_handle.clone();
 1593                    move |window, cx| {
 1594                        cx.new(|cx| {
 1595                            let mut workspace = Workspace::new(
 1596                                Some(workspace_id),
 1597                                project_handle,
 1598                                app_state,
 1599                                window,
 1600                                cx,
 1601                            );
 1602                            workspace.centered_layout = centered_layout;
 1603                            workspace
 1604                        })
 1605                    }
 1606                })?
 1607            };
 1608
 1609            notify_if_database_failed(window, cx);
 1610            let opened_items = window
 1611                .update(cx, |_workspace, window, cx| {
 1612                    open_items(serialized_workspace, project_paths, window, cx)
 1613                })?
 1614                .await
 1615                .unwrap_or_default();
 1616
 1617            window
 1618                .update(cx, |workspace, window, cx| {
 1619                    window.activate_window();
 1620                    workspace.update_history(cx);
 1621                })
 1622                .log_err();
 1623            Ok((window, opened_items))
 1624        })
 1625    }
 1626
 1627    pub fn weak_handle(&self) -> WeakEntity<Self> {
 1628        self.weak_self.clone()
 1629    }
 1630
 1631    pub fn left_dock(&self) -> &Entity<Dock> {
 1632        &self.left_dock
 1633    }
 1634
 1635    pub fn bottom_dock(&self) -> &Entity<Dock> {
 1636        &self.bottom_dock
 1637    }
 1638
 1639    pub fn set_bottom_dock_layout(
 1640        &mut self,
 1641        layout: BottomDockLayout,
 1642        window: &mut Window,
 1643        cx: &mut Context<Self>,
 1644    ) {
 1645        let fs = self.project().read(cx).fs();
 1646        settings::update_settings_file::<WorkspaceSettings>(fs.clone(), cx, move |content, _cx| {
 1647            content.bottom_dock_layout = Some(layout);
 1648        });
 1649
 1650        cx.notify();
 1651        self.serialize_workspace(window, cx);
 1652    }
 1653
 1654    pub fn right_dock(&self) -> &Entity<Dock> {
 1655        &self.right_dock
 1656    }
 1657
 1658    pub fn all_docks(&self) -> [&Entity<Dock>; 3] {
 1659        [&self.left_dock, &self.bottom_dock, &self.right_dock]
 1660    }
 1661
 1662    pub fn dock_at_position(&self, position: DockPosition) -> &Entity<Dock> {
 1663        match position {
 1664            DockPosition::Left => &self.left_dock,
 1665            DockPosition::Bottom => &self.bottom_dock,
 1666            DockPosition::Right => &self.right_dock,
 1667        }
 1668    }
 1669
 1670    pub fn is_edited(&self) -> bool {
 1671        self.window_edited
 1672    }
 1673
 1674    pub fn add_panel<T: Panel>(
 1675        &mut self,
 1676        panel: Entity<T>,
 1677        window: &mut Window,
 1678        cx: &mut Context<Self>,
 1679    ) {
 1680        let focus_handle = panel.panel_focus_handle(cx);
 1681        cx.on_focus_in(&focus_handle, window, Self::handle_panel_focused)
 1682            .detach();
 1683
 1684        let dock_position = panel.position(window, cx);
 1685        let dock = self.dock_at_position(dock_position);
 1686
 1687        dock.update(cx, |dock, cx| {
 1688            dock.add_panel(panel, self.weak_self.clone(), window, cx)
 1689        });
 1690    }
 1691
 1692    pub fn status_bar(&self) -> &Entity<StatusBar> {
 1693        &self.status_bar
 1694    }
 1695
 1696    pub fn app_state(&self) -> &Arc<AppState> {
 1697        &self.app_state
 1698    }
 1699
 1700    pub fn user_store(&self) -> &Entity<UserStore> {
 1701        &self.app_state.user_store
 1702    }
 1703
 1704    pub fn project(&self) -> &Entity<Project> {
 1705        &self.project
 1706    }
 1707
 1708    pub fn recently_activated_items(&self, cx: &App) -> HashMap<EntityId, usize> {
 1709        let mut history: HashMap<EntityId, usize> = HashMap::default();
 1710
 1711        for pane_handle in &self.panes {
 1712            let pane = pane_handle.read(cx);
 1713
 1714            for entry in pane.activation_history() {
 1715                history.insert(
 1716                    entry.entity_id,
 1717                    history
 1718                        .get(&entry.entity_id)
 1719                        .cloned()
 1720                        .unwrap_or(0)
 1721                        .max(entry.timestamp),
 1722                );
 1723            }
 1724        }
 1725
 1726        history
 1727    }
 1728
 1729    pub fn recent_active_item_by_type<T: 'static>(&self, cx: &App) -> Option<Entity<T>> {
 1730        let mut recent_item: Option<Entity<T>> = None;
 1731        let mut recent_timestamp = 0;
 1732        for pane_handle in &self.panes {
 1733            let pane = pane_handle.read(cx);
 1734            let item_map: HashMap<EntityId, &Box<dyn ItemHandle>> =
 1735                pane.items().map(|item| (item.item_id(), item)).collect();
 1736            for entry in pane.activation_history() {
 1737                if entry.timestamp > recent_timestamp {
 1738                    if let Some(&item) = item_map.get(&entry.entity_id) {
 1739                        if let Some(typed_item) = item.act_as::<T>(cx) {
 1740                            recent_timestamp = entry.timestamp;
 1741                            recent_item = Some(typed_item);
 1742                        }
 1743                    }
 1744                }
 1745            }
 1746        }
 1747        recent_item
 1748    }
 1749
 1750    pub fn recent_navigation_history_iter(
 1751        &self,
 1752        cx: &App,
 1753    ) -> impl Iterator<Item = (ProjectPath, Option<PathBuf>)> {
 1754        let mut abs_paths_opened: HashMap<PathBuf, HashSet<ProjectPath>> = HashMap::default();
 1755        let mut history: HashMap<ProjectPath, (Option<PathBuf>, usize)> = HashMap::default();
 1756
 1757        for pane in &self.panes {
 1758            let pane = pane.read(cx);
 1759
 1760            pane.nav_history()
 1761                .for_each_entry(cx, |entry, (project_path, fs_path)| {
 1762                    if let Some(fs_path) = &fs_path {
 1763                        abs_paths_opened
 1764                            .entry(fs_path.clone())
 1765                            .or_default()
 1766                            .insert(project_path.clone());
 1767                    }
 1768                    let timestamp = entry.timestamp;
 1769                    match history.entry(project_path) {
 1770                        hash_map::Entry::Occupied(mut entry) => {
 1771                            let (_, old_timestamp) = entry.get();
 1772                            if &timestamp > old_timestamp {
 1773                                entry.insert((fs_path, timestamp));
 1774                            }
 1775                        }
 1776                        hash_map::Entry::Vacant(entry) => {
 1777                            entry.insert((fs_path, timestamp));
 1778                        }
 1779                    }
 1780                });
 1781
 1782            if let Some(item) = pane.active_item() {
 1783                if let Some(project_path) = item.project_path(cx) {
 1784                    let fs_path = self.project.read(cx).absolute_path(&project_path, cx);
 1785
 1786                    if let Some(fs_path) = &fs_path {
 1787                        abs_paths_opened
 1788                            .entry(fs_path.clone())
 1789                            .or_default()
 1790                            .insert(project_path.clone());
 1791                    }
 1792
 1793                    history.insert(project_path, (fs_path, std::usize::MAX));
 1794                }
 1795            }
 1796        }
 1797
 1798        history
 1799            .into_iter()
 1800            .sorted_by_key(|(_, (_, order))| *order)
 1801            .map(|(project_path, (fs_path, _))| (project_path, fs_path))
 1802            .rev()
 1803            .filter(move |(history_path, abs_path)| {
 1804                let latest_project_path_opened = abs_path
 1805                    .as_ref()
 1806                    .and_then(|abs_path| abs_paths_opened.get(abs_path))
 1807                    .and_then(|project_paths| {
 1808                        project_paths
 1809                            .iter()
 1810                            .max_by(|b1, b2| b1.worktree_id.cmp(&b2.worktree_id))
 1811                    });
 1812
 1813                latest_project_path_opened.map_or(true, |path| path == history_path)
 1814            })
 1815    }
 1816
 1817    pub fn recent_navigation_history(
 1818        &self,
 1819        limit: Option<usize>,
 1820        cx: &App,
 1821    ) -> Vec<(ProjectPath, Option<PathBuf>)> {
 1822        self.recent_navigation_history_iter(cx)
 1823            .take(limit.unwrap_or(usize::MAX))
 1824            .collect()
 1825    }
 1826
 1827    fn navigate_history(
 1828        &mut self,
 1829        pane: WeakEntity<Pane>,
 1830        mode: NavigationMode,
 1831        window: &mut Window,
 1832        cx: &mut Context<Workspace>,
 1833    ) -> Task<Result<()>> {
 1834        let to_load = if let Some(pane) = pane.upgrade() {
 1835            pane.update(cx, |pane, cx| {
 1836                window.focus(&pane.focus_handle(cx));
 1837                loop {
 1838                    // Retrieve the weak item handle from the history.
 1839                    let entry = pane.nav_history_mut().pop(mode, cx)?;
 1840
 1841                    // If the item is still present in this pane, then activate it.
 1842                    if let Some(index) = entry
 1843                        .item
 1844                        .upgrade()
 1845                        .and_then(|v| pane.index_for_item(v.as_ref()))
 1846                    {
 1847                        let prev_active_item_index = pane.active_item_index();
 1848                        pane.nav_history_mut().set_mode(mode);
 1849                        pane.activate_item(index, true, true, window, cx);
 1850                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 1851
 1852                        let mut navigated = prev_active_item_index != pane.active_item_index();
 1853                        if let Some(data) = entry.data {
 1854                            navigated |= pane.active_item()?.navigate(data, window, cx);
 1855                        }
 1856
 1857                        if navigated {
 1858                            break None;
 1859                        }
 1860                    } else {
 1861                        // If the item is no longer present in this pane, then retrieve its
 1862                        // path info in order to reopen it.
 1863                        break pane
 1864                            .nav_history()
 1865                            .path_for_item(entry.item.id())
 1866                            .map(|(project_path, abs_path)| (project_path, abs_path, entry));
 1867                    }
 1868                }
 1869            })
 1870        } else {
 1871            None
 1872        };
 1873
 1874        if let Some((project_path, abs_path, entry)) = to_load {
 1875            // If the item was no longer present, then load it again from its previous path, first try the local path
 1876            let open_by_project_path = self.load_path(project_path.clone(), window, cx);
 1877
 1878            cx.spawn_in(window, async move  |workspace, cx| {
 1879                let open_by_project_path = open_by_project_path.await;
 1880                let mut navigated = false;
 1881                match open_by_project_path
 1882                    .with_context(|| format!("Navigating to {project_path:?}"))
 1883                {
 1884                    Ok((project_entry_id, build_item)) => {
 1885                        let prev_active_item_id = pane.update(cx, |pane, _| {
 1886                            pane.nav_history_mut().set_mode(mode);
 1887                            pane.active_item().map(|p| p.item_id())
 1888                        })?;
 1889
 1890                        pane.update_in(cx, |pane, window, cx| {
 1891                            let item = pane.open_item(
 1892                                project_entry_id,
 1893                                project_path,
 1894                                true,
 1895                                entry.is_preview,
 1896                                true,
 1897                                None,
 1898                                window, cx,
 1899                                build_item,
 1900                            );
 1901                            navigated |= Some(item.item_id()) != prev_active_item_id;
 1902                            pane.nav_history_mut().set_mode(NavigationMode::Normal);
 1903                            if let Some(data) = entry.data {
 1904                                navigated |= item.navigate(data, window, cx);
 1905                            }
 1906                        })?;
 1907                    }
 1908                    Err(open_by_project_path_e) => {
 1909                        // Fall back to opening by abs path, in case an external file was opened and closed,
 1910                        // and its worktree is now dropped
 1911                        if let Some(abs_path) = abs_path {
 1912                            let prev_active_item_id = pane.update(cx, |pane, _| {
 1913                                pane.nav_history_mut().set_mode(mode);
 1914                                pane.active_item().map(|p| p.item_id())
 1915                            })?;
 1916                            let open_by_abs_path = workspace.update_in(cx, |workspace, window, cx| {
 1917                                workspace.open_abs_path(abs_path.clone(), OpenOptions { visible: Some(OpenVisible::None), ..Default::default() }, window, cx)
 1918                            })?;
 1919                            match open_by_abs_path
 1920                                .await
 1921                                .with_context(|| format!("Navigating to {abs_path:?}"))
 1922                            {
 1923                                Ok(item) => {
 1924                                    pane.update_in(cx, |pane, window, cx| {
 1925                                        navigated |= Some(item.item_id()) != prev_active_item_id;
 1926                                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 1927                                        if let Some(data) = entry.data {
 1928                                            navigated |= item.navigate(data, window, cx);
 1929                                        }
 1930                                    })?;
 1931                                }
 1932                                Err(open_by_abs_path_e) => {
 1933                                    log::error!("Failed to navigate history: {open_by_project_path_e:#} and {open_by_abs_path_e:#}");
 1934                                }
 1935                            }
 1936                        }
 1937                    }
 1938                }
 1939
 1940                if !navigated {
 1941                    workspace
 1942                        .update_in(cx, |workspace, window, cx| {
 1943                            Self::navigate_history(workspace, pane, mode, window, cx)
 1944                        })?
 1945                        .await?;
 1946                }
 1947
 1948                Ok(())
 1949            })
 1950        } else {
 1951            Task::ready(Ok(()))
 1952        }
 1953    }
 1954
 1955    pub fn go_back(
 1956        &mut self,
 1957        pane: WeakEntity<Pane>,
 1958        window: &mut Window,
 1959        cx: &mut Context<Workspace>,
 1960    ) -> Task<Result<()>> {
 1961        self.navigate_history(pane, NavigationMode::GoingBack, window, cx)
 1962    }
 1963
 1964    pub fn go_forward(
 1965        &mut self,
 1966        pane: WeakEntity<Pane>,
 1967        window: &mut Window,
 1968        cx: &mut Context<Workspace>,
 1969    ) -> Task<Result<()>> {
 1970        self.navigate_history(pane, NavigationMode::GoingForward, window, cx)
 1971    }
 1972
 1973    pub fn reopen_closed_item(
 1974        &mut self,
 1975        window: &mut Window,
 1976        cx: &mut Context<Workspace>,
 1977    ) -> Task<Result<()>> {
 1978        self.navigate_history(
 1979            self.active_pane().downgrade(),
 1980            NavigationMode::ReopeningClosedItem,
 1981            window,
 1982            cx,
 1983        )
 1984    }
 1985
 1986    pub fn client(&self) -> &Arc<Client> {
 1987        &self.app_state.client
 1988    }
 1989
 1990    pub fn set_titlebar_item(&mut self, item: AnyView, _: &mut Window, cx: &mut Context<Self>) {
 1991        self.titlebar_item = Some(item);
 1992        cx.notify();
 1993    }
 1994
 1995    pub fn set_prompt_for_new_path(&mut self, prompt: PromptForNewPath) {
 1996        self.on_prompt_for_new_path = Some(prompt)
 1997    }
 1998
 1999    pub fn set_prompt_for_open_path(&mut self, prompt: PromptForOpenPath) {
 2000        self.on_prompt_for_open_path = Some(prompt)
 2001    }
 2002
 2003    pub fn set_terminal_provider(&mut self, provider: impl TerminalProvider + 'static) {
 2004        self.terminal_provider = Some(Box::new(provider));
 2005    }
 2006
 2007    pub fn set_debugger_provider(&mut self, provider: impl DebuggerProvider + 'static) {
 2008        self.debugger_provider = Some(Arc::new(provider));
 2009    }
 2010
 2011    pub fn debugger_provider(&self) -> Option<Arc<dyn DebuggerProvider>> {
 2012        self.debugger_provider.clone()
 2013    }
 2014
 2015    pub fn serialized_ssh_project(&self) -> Option<SerializedSshProject> {
 2016        self.serialized_ssh_project.clone()
 2017    }
 2018
 2019    pub fn set_serialized_ssh_project(&mut self, serialized_ssh_project: SerializedSshProject) {
 2020        self.serialized_ssh_project = Some(serialized_ssh_project);
 2021    }
 2022
 2023    pub fn prompt_for_open_path(
 2024        &mut self,
 2025        path_prompt_options: PathPromptOptions,
 2026        lister: DirectoryLister,
 2027        window: &mut Window,
 2028        cx: &mut Context<Self>,
 2029    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2030        if !lister.is_local(cx) || !WorkspaceSettings::get_global(cx).use_system_path_prompts {
 2031            let prompt = self.on_prompt_for_open_path.take().unwrap();
 2032            let rx = prompt(self, lister, window, cx);
 2033            self.on_prompt_for_open_path = Some(prompt);
 2034            rx
 2035        } else {
 2036            let (tx, rx) = oneshot::channel();
 2037            let abs_path = cx.prompt_for_paths(path_prompt_options);
 2038
 2039            cx.spawn_in(window, async move |workspace, cx| {
 2040                let Ok(result) = abs_path.await else {
 2041                    return Ok(());
 2042                };
 2043
 2044                match result {
 2045                    Ok(result) => {
 2046                        tx.send(result).ok();
 2047                    }
 2048                    Err(err) => {
 2049                        let rx = workspace.update_in(cx, |workspace, window, cx| {
 2050                            workspace.show_portal_error(err.to_string(), cx);
 2051                            let prompt = workspace.on_prompt_for_open_path.take().unwrap();
 2052                            let rx = prompt(workspace, lister, window, cx);
 2053                            workspace.on_prompt_for_open_path = Some(prompt);
 2054                            rx
 2055                        })?;
 2056                        if let Ok(path) = rx.await {
 2057                            tx.send(path).ok();
 2058                        }
 2059                    }
 2060                };
 2061                anyhow::Ok(())
 2062            })
 2063            .detach();
 2064
 2065            rx
 2066        }
 2067    }
 2068
 2069    pub fn prompt_for_new_path(
 2070        &mut self,
 2071        lister: DirectoryLister,
 2072        suggested_name: Option<String>,
 2073        window: &mut Window,
 2074        cx: &mut Context<Self>,
 2075    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2076        if self.project.read(cx).is_via_collab()
 2077            || self.project.read(cx).is_via_ssh()
 2078            || !WorkspaceSettings::get_global(cx).use_system_path_prompts
 2079        {
 2080            let prompt = self.on_prompt_for_new_path.take().unwrap();
 2081            let rx = prompt(self, lister, window, cx);
 2082            self.on_prompt_for_new_path = Some(prompt);
 2083            return rx;
 2084        }
 2085
 2086        let (tx, rx) = oneshot::channel();
 2087        cx.spawn_in(window, async move |workspace, cx| {
 2088            let abs_path = workspace.update(cx, |workspace, cx| {
 2089                let relative_to = workspace
 2090                    .most_recent_active_path(cx)
 2091                    .and_then(|p| p.parent().map(|p| p.to_path_buf()))
 2092                    .or_else(|| {
 2093                        let project = workspace.project.read(cx);
 2094                        project.visible_worktrees(cx).find_map(|worktree| {
 2095                            Some(worktree.read(cx).as_local()?.abs_path().to_path_buf())
 2096                        })
 2097                    })
 2098                    .or_else(std::env::home_dir)
 2099                    .unwrap_or_else(|| PathBuf::from(""));
 2100                cx.prompt_for_new_path(&relative_to, suggested_name.as_deref())
 2101            })?;
 2102            let abs_path = match abs_path.await? {
 2103                Ok(path) => path,
 2104                Err(err) => {
 2105                    let rx = workspace.update_in(cx, |workspace, window, cx| {
 2106                        workspace.show_portal_error(err.to_string(), cx);
 2107
 2108                        let prompt = workspace.on_prompt_for_new_path.take().unwrap();
 2109                        let rx = prompt(workspace, lister, window, cx);
 2110                        workspace.on_prompt_for_new_path = Some(prompt);
 2111                        rx
 2112                    })?;
 2113                    if let Ok(path) = rx.await {
 2114                        tx.send(path).ok();
 2115                    }
 2116                    return anyhow::Ok(());
 2117                }
 2118            };
 2119
 2120            tx.send(abs_path.map(|path| vec![path])).ok();
 2121            anyhow::Ok(())
 2122        })
 2123        .detach();
 2124
 2125        rx
 2126    }
 2127
 2128    pub fn titlebar_item(&self) -> Option<AnyView> {
 2129        self.titlebar_item.clone()
 2130    }
 2131
 2132    /// Call the given callback with a workspace whose project is local.
 2133    ///
 2134    /// If the given workspace has a local project, then it will be passed
 2135    /// to the callback. Otherwise, a new empty window will be created.
 2136    pub fn with_local_workspace<T, F>(
 2137        &mut self,
 2138        window: &mut Window,
 2139        cx: &mut Context<Self>,
 2140        callback: F,
 2141    ) -> Task<Result<T>>
 2142    where
 2143        T: 'static,
 2144        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2145    {
 2146        if self.project.read(cx).is_local() {
 2147            Task::ready(Ok(callback(self, window, cx)))
 2148        } else {
 2149            let env = self.project.read(cx).cli_environment(cx);
 2150            let task = Self::new_local(Vec::new(), self.app_state.clone(), None, env, cx);
 2151            cx.spawn_in(window, async move |_vh, cx| {
 2152                let (workspace, _) = task.await?;
 2153                workspace.update(cx, callback)
 2154            })
 2155        }
 2156    }
 2157
 2158    pub fn worktrees<'a>(&self, cx: &'a App) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2159        self.project.read(cx).worktrees(cx)
 2160    }
 2161
 2162    pub fn visible_worktrees<'a>(
 2163        &self,
 2164        cx: &'a App,
 2165    ) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2166        self.project.read(cx).visible_worktrees(cx)
 2167    }
 2168
 2169    #[cfg(any(test, feature = "test-support"))]
 2170    pub fn worktree_scans_complete(&self, cx: &App) -> impl Future<Output = ()> + 'static + use<> {
 2171        let futures = self
 2172            .worktrees(cx)
 2173            .filter_map(|worktree| worktree.read(cx).as_local())
 2174            .map(|worktree| worktree.scan_complete())
 2175            .collect::<Vec<_>>();
 2176        async move {
 2177            for future in futures {
 2178                future.await;
 2179            }
 2180        }
 2181    }
 2182
 2183    pub fn close_global(cx: &mut App) {
 2184        cx.defer(|cx| {
 2185            cx.windows().iter().find(|window| {
 2186                window
 2187                    .update(cx, |_, window, _| {
 2188                        if window.is_window_active() {
 2189                            //This can only get called when the window's project connection has been lost
 2190                            //so we don't need to prompt the user for anything and instead just close the window
 2191                            window.remove_window();
 2192                            true
 2193                        } else {
 2194                            false
 2195                        }
 2196                    })
 2197                    .unwrap_or(false)
 2198            });
 2199        });
 2200    }
 2201
 2202    pub fn close_window(&mut self, _: &CloseWindow, window: &mut Window, cx: &mut Context<Self>) {
 2203        let prepare = self.prepare_to_close(CloseIntent::CloseWindow, window, cx);
 2204        cx.spawn_in(window, async move |_, cx| {
 2205            if prepare.await? {
 2206                cx.update(|window, _cx| window.remove_window())?;
 2207            }
 2208            anyhow::Ok(())
 2209        })
 2210        .detach_and_log_err(cx)
 2211    }
 2212
 2213    pub fn move_focused_panel_to_next_position(
 2214        &mut self,
 2215        _: &MoveFocusedPanelToNextPosition,
 2216        window: &mut Window,
 2217        cx: &mut Context<Self>,
 2218    ) {
 2219        let docks = self.all_docks();
 2220        let active_dock = docks
 2221            .into_iter()
 2222            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 2223
 2224        if let Some(dock) = active_dock {
 2225            dock.update(cx, |dock, cx| {
 2226                let active_panel = dock
 2227                    .active_panel()
 2228                    .filter(|panel| panel.panel_focus_handle(cx).contains_focused(window, cx));
 2229
 2230                if let Some(panel) = active_panel {
 2231                    panel.move_to_next_position(window, cx);
 2232                }
 2233            })
 2234        }
 2235    }
 2236
 2237    pub fn prepare_to_close(
 2238        &mut self,
 2239        close_intent: CloseIntent,
 2240        window: &mut Window,
 2241        cx: &mut Context<Self>,
 2242    ) -> Task<Result<bool>> {
 2243        let active_call = self.active_call().cloned();
 2244
 2245        // On Linux and Windows, closing the last window should restore the last workspace.
 2246        let save_last_workspace = cfg!(not(target_os = "macos"))
 2247            && close_intent != CloseIntent::ReplaceWindow
 2248            && cx.windows().len() == 1;
 2249
 2250        cx.spawn_in(window, async move |this, cx| {
 2251            let workspace_count = cx.update(|_window, cx| {
 2252                cx.windows()
 2253                    .iter()
 2254                    .filter(|window| window.downcast::<Workspace>().is_some())
 2255                    .count()
 2256            })?;
 2257
 2258            if let Some(active_call) = active_call {
 2259                if close_intent != CloseIntent::Quit
 2260                    && workspace_count == 1
 2261                    && active_call.read_with(cx, |call, _| call.room().is_some())?
 2262                {
 2263                    let answer = cx.update(|window, cx| {
 2264                        window.prompt(
 2265                            PromptLevel::Warning,
 2266                            "Do you want to leave the current call?",
 2267                            None,
 2268                            &["Close window and hang up", "Cancel"],
 2269                            cx,
 2270                        )
 2271                    })?;
 2272
 2273                    if answer.await.log_err() == Some(1) {
 2274                        return anyhow::Ok(false);
 2275                    } else {
 2276                        active_call
 2277                            .update(cx, |call, cx| call.hang_up(cx))?
 2278                            .await
 2279                            .log_err();
 2280                    }
 2281                }
 2282            }
 2283
 2284            let save_result = this
 2285                .update_in(cx, |this, window, cx| {
 2286                    this.save_all_internal(SaveIntent::Close, window, cx)
 2287                })?
 2288                .await;
 2289
 2290            // If we're not quitting, but closing, we remove the workspace from
 2291            // the current session.
 2292            if close_intent != CloseIntent::Quit
 2293                && !save_last_workspace
 2294                && save_result.as_ref().map_or(false, |&res| res)
 2295            {
 2296                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))?
 2297                    .await;
 2298            }
 2299
 2300            save_result
 2301        })
 2302    }
 2303
 2304    fn save_all(&mut self, action: &SaveAll, window: &mut Window, cx: &mut Context<Self>) {
 2305        self.save_all_internal(
 2306            action.save_intent.unwrap_or(SaveIntent::SaveAll),
 2307            window,
 2308            cx,
 2309        )
 2310        .detach_and_log_err(cx);
 2311    }
 2312
 2313    fn send_keystrokes(
 2314        &mut self,
 2315        action: &SendKeystrokes,
 2316        window: &mut Window,
 2317        cx: &mut Context<Self>,
 2318    ) {
 2319        let keystrokes: Vec<Keystroke> = action
 2320            .0
 2321            .split(' ')
 2322            .flat_map(|k| Keystroke::parse(k).log_err())
 2323            .collect();
 2324        let _ = self.send_keystrokes_impl(keystrokes, window, cx);
 2325    }
 2326
 2327    pub fn send_keystrokes_impl(
 2328        &mut self,
 2329        keystrokes: Vec<Keystroke>,
 2330        window: &mut Window,
 2331        cx: &mut Context<Self>,
 2332    ) -> Shared<Task<()>> {
 2333        let mut state = self.dispatching_keystrokes.borrow_mut();
 2334        if !state.dispatched.insert(keystrokes.clone()) {
 2335            cx.propagate();
 2336            return state.task.clone().unwrap();
 2337        }
 2338
 2339        state.queue.extend(keystrokes);
 2340
 2341        let keystrokes = self.dispatching_keystrokes.clone();
 2342        if state.task.is_none() {
 2343            state.task = Some(
 2344                window
 2345                    .spawn(cx, async move |cx| {
 2346                        // limit to 100 keystrokes to avoid infinite recursion.
 2347                        for _ in 0..100 {
 2348                            let mut state = keystrokes.borrow_mut();
 2349                            let Some(keystroke) = state.queue.pop_front() else {
 2350                                state.dispatched.clear();
 2351                                state.task.take();
 2352                                return;
 2353                            };
 2354                            drop(state);
 2355                            cx.update(|window, cx| {
 2356                                let focused = window.focused(cx);
 2357                                window.dispatch_keystroke(keystroke.clone(), cx);
 2358                                if window.focused(cx) != focused {
 2359                                    // dispatch_keystroke may cause the focus to change.
 2360                                    // draw's side effect is to schedule the FocusChanged events in the current flush effect cycle
 2361                                    // And we need that to happen before the next keystroke to keep vim mode happy...
 2362                                    // (Note that the tests always do this implicitly, so you must manually test with something like:
 2363                                    //   "bindings": { "g z": ["workspace::SendKeystrokes", ": j <enter> u"]}
 2364                                    // )
 2365                                    window.draw(cx).clear();
 2366                                }
 2367                            })
 2368                            .ok();
 2369                        }
 2370
 2371                        *keystrokes.borrow_mut() = Default::default();
 2372                        log::error!("over 100 keystrokes passed to send_keystrokes");
 2373                    })
 2374                    .shared(),
 2375            );
 2376        }
 2377        state.task.clone().unwrap()
 2378    }
 2379
 2380    fn save_all_internal(
 2381        &mut self,
 2382        mut save_intent: SaveIntent,
 2383        window: &mut Window,
 2384        cx: &mut Context<Self>,
 2385    ) -> Task<Result<bool>> {
 2386        if self.project.read(cx).is_disconnected(cx) {
 2387            return Task::ready(Ok(true));
 2388        }
 2389        let dirty_items = self
 2390            .panes
 2391            .iter()
 2392            .flat_map(|pane| {
 2393                pane.read(cx).items().filter_map(|item| {
 2394                    if item.is_dirty(cx) {
 2395                        item.tab_content_text(0, cx);
 2396                        Some((pane.downgrade(), item.boxed_clone()))
 2397                    } else {
 2398                        None
 2399                    }
 2400                })
 2401            })
 2402            .collect::<Vec<_>>();
 2403
 2404        let project = self.project.clone();
 2405        cx.spawn_in(window, async move |workspace, cx| {
 2406            let dirty_items = if save_intent == SaveIntent::Close && !dirty_items.is_empty() {
 2407                let (serialize_tasks, remaining_dirty_items) =
 2408                    workspace.update_in(cx, |workspace, window, cx| {
 2409                        let mut remaining_dirty_items = Vec::new();
 2410                        let mut serialize_tasks = Vec::new();
 2411                        for (pane, item) in dirty_items {
 2412                            if let Some(task) = item
 2413                                .to_serializable_item_handle(cx)
 2414                                .and_then(|handle| handle.serialize(workspace, true, window, cx))
 2415                            {
 2416                                serialize_tasks.push(task);
 2417                            } else {
 2418                                remaining_dirty_items.push((pane, item));
 2419                            }
 2420                        }
 2421                        (serialize_tasks, remaining_dirty_items)
 2422                    })?;
 2423
 2424                futures::future::try_join_all(serialize_tasks).await?;
 2425
 2426                if remaining_dirty_items.len() > 1 {
 2427                    let answer = workspace.update_in(cx, |_, window, cx| {
 2428                        let detail = Pane::file_names_for_prompt(
 2429                            &mut remaining_dirty_items.iter().map(|(_, handle)| handle),
 2430                            cx,
 2431                        );
 2432                        window.prompt(
 2433                            PromptLevel::Warning,
 2434                            "Do you want to save all changes in the following files?",
 2435                            Some(&detail),
 2436                            &["Save all", "Discard all", "Cancel"],
 2437                            cx,
 2438                        )
 2439                    })?;
 2440                    match answer.await.log_err() {
 2441                        Some(0) => save_intent = SaveIntent::SaveAll,
 2442                        Some(1) => save_intent = SaveIntent::Skip,
 2443                        Some(2) => return Ok(false),
 2444                        _ => {}
 2445                    }
 2446                }
 2447
 2448                remaining_dirty_items
 2449            } else {
 2450                dirty_items
 2451            };
 2452
 2453            for (pane, item) in dirty_items {
 2454                let (singleton, project_entry_ids) =
 2455                    cx.update(|_, cx| (item.is_singleton(cx), item.project_entry_ids(cx)))?;
 2456                if singleton || !project_entry_ids.is_empty() {
 2457                    if !Pane::save_item(project.clone(), &pane, &*item, save_intent, cx).await? {
 2458                        return Ok(false);
 2459                    }
 2460                }
 2461            }
 2462            Ok(true)
 2463        })
 2464    }
 2465
 2466    pub fn open_workspace_for_paths(
 2467        &mut self,
 2468        replace_current_window: bool,
 2469        paths: Vec<PathBuf>,
 2470        window: &mut Window,
 2471        cx: &mut Context<Self>,
 2472    ) -> Task<Result<()>> {
 2473        let window_handle = window.window_handle().downcast::<Self>();
 2474        let is_remote = self.project.read(cx).is_via_collab();
 2475        let has_worktree = self.project.read(cx).worktrees(cx).next().is_some();
 2476        let has_dirty_items = self.items(cx).any(|item| item.is_dirty(cx));
 2477
 2478        let window_to_replace = if replace_current_window {
 2479            window_handle
 2480        } else if is_remote || has_worktree || has_dirty_items {
 2481            None
 2482        } else {
 2483            window_handle
 2484        };
 2485        let app_state = self.app_state.clone();
 2486
 2487        cx.spawn(async move |_, cx| {
 2488            cx.update(|cx| {
 2489                open_paths(
 2490                    &paths,
 2491                    app_state,
 2492                    OpenOptions {
 2493                        replace_window: window_to_replace,
 2494                        ..Default::default()
 2495                    },
 2496                    cx,
 2497                )
 2498            })?
 2499            .await?;
 2500            Ok(())
 2501        })
 2502    }
 2503
 2504    #[allow(clippy::type_complexity)]
 2505    pub fn open_paths(
 2506        &mut self,
 2507        mut abs_paths: Vec<PathBuf>,
 2508        options: OpenOptions,
 2509        pane: Option<WeakEntity<Pane>>,
 2510        window: &mut Window,
 2511        cx: &mut Context<Self>,
 2512    ) -> Task<Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>> {
 2513        log::info!("open paths {abs_paths:?}");
 2514
 2515        let fs = self.app_state.fs.clone();
 2516
 2517        // Sort the paths to ensure we add worktrees for parents before their children.
 2518        abs_paths.sort_unstable();
 2519        cx.spawn_in(window, async move |this, cx| {
 2520            let mut tasks = Vec::with_capacity(abs_paths.len());
 2521
 2522            for abs_path in &abs_paths {
 2523                let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 2524                    OpenVisible::All => Some(true),
 2525                    OpenVisible::None => Some(false),
 2526                    OpenVisible::OnlyFiles => match fs.metadata(abs_path).await.log_err() {
 2527                        Some(Some(metadata)) => Some(!metadata.is_dir),
 2528                        Some(None) => Some(true),
 2529                        None => None,
 2530                    },
 2531                    OpenVisible::OnlyDirectories => match fs.metadata(abs_path).await.log_err() {
 2532                        Some(Some(metadata)) => Some(metadata.is_dir),
 2533                        Some(None) => Some(false),
 2534                        None => None,
 2535                    },
 2536                };
 2537                let project_path = match visible {
 2538                    Some(visible) => match this
 2539                        .update(cx, |this, cx| {
 2540                            Workspace::project_path_for_path(
 2541                                this.project.clone(),
 2542                                abs_path,
 2543                                visible,
 2544                                cx,
 2545                            )
 2546                        })
 2547                        .log_err()
 2548                    {
 2549                        Some(project_path) => project_path.await.log_err(),
 2550                        None => None,
 2551                    },
 2552                    None => None,
 2553                };
 2554
 2555                let this = this.clone();
 2556                let abs_path: Arc<Path> = SanitizedPath::from(abs_path.clone()).into();
 2557                let fs = fs.clone();
 2558                let pane = pane.clone();
 2559                let task = cx.spawn(async move |cx| {
 2560                    let (worktree, project_path) = project_path?;
 2561                    if fs.is_dir(&abs_path).await {
 2562                        this.update(cx, |workspace, cx| {
 2563                            let worktree = worktree.read(cx);
 2564                            let worktree_abs_path = worktree.abs_path();
 2565                            let entry_id = if abs_path.as_ref() == worktree_abs_path.as_ref() {
 2566                                worktree.root_entry()
 2567                            } else {
 2568                                abs_path
 2569                                    .strip_prefix(worktree_abs_path.as_ref())
 2570                                    .ok()
 2571                                    .and_then(|relative_path| {
 2572                                        worktree.entry_for_path(relative_path)
 2573                                    })
 2574                            }
 2575                            .map(|entry| entry.id);
 2576                            if let Some(entry_id) = entry_id {
 2577                                workspace.project.update(cx, |_, cx| {
 2578                                    cx.emit(project::Event::ActiveEntryChanged(Some(entry_id)));
 2579                                })
 2580                            }
 2581                        })
 2582                        .ok()?;
 2583                        None
 2584                    } else {
 2585                        Some(
 2586                            this.update_in(cx, |this, window, cx| {
 2587                                this.open_path(
 2588                                    project_path,
 2589                                    pane,
 2590                                    options.focus.unwrap_or(true),
 2591                                    window,
 2592                                    cx,
 2593                                )
 2594                            })
 2595                            .ok()?
 2596                            .await,
 2597                        )
 2598                    }
 2599                });
 2600                tasks.push(task);
 2601            }
 2602
 2603            futures::future::join_all(tasks).await
 2604        })
 2605    }
 2606
 2607    pub fn open_resolved_path(
 2608        &mut self,
 2609        path: ResolvedPath,
 2610        window: &mut Window,
 2611        cx: &mut Context<Self>,
 2612    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 2613        match path {
 2614            ResolvedPath::ProjectPath { project_path, .. } => {
 2615                self.open_path(project_path, None, true, window, cx)
 2616            }
 2617            ResolvedPath::AbsPath { path, .. } => self.open_abs_path(
 2618                path,
 2619                OpenOptions {
 2620                    visible: Some(OpenVisible::None),
 2621                    ..Default::default()
 2622                },
 2623                window,
 2624                cx,
 2625            ),
 2626        }
 2627    }
 2628
 2629    pub fn absolute_path_of_worktree(
 2630        &self,
 2631        worktree_id: WorktreeId,
 2632        cx: &mut Context<Self>,
 2633    ) -> Option<PathBuf> {
 2634        self.project
 2635            .read(cx)
 2636            .worktree_for_id(worktree_id, cx)
 2637            // TODO: use `abs_path` or `root_dir`
 2638            .map(|wt| wt.read(cx).abs_path().as_ref().to_path_buf())
 2639    }
 2640
 2641    fn add_folder_to_project(
 2642        &mut self,
 2643        _: &AddFolderToProject,
 2644        window: &mut Window,
 2645        cx: &mut Context<Self>,
 2646    ) {
 2647        let project = self.project.read(cx);
 2648        if project.is_via_collab() {
 2649            self.show_error(
 2650                &anyhow!("You cannot add folders to someone else's project"),
 2651                cx,
 2652            );
 2653            return;
 2654        }
 2655        let paths = self.prompt_for_open_path(
 2656            PathPromptOptions {
 2657                files: false,
 2658                directories: true,
 2659                multiple: true,
 2660                prompt: None,
 2661            },
 2662            DirectoryLister::Project(self.project.clone()),
 2663            window,
 2664            cx,
 2665        );
 2666        cx.spawn_in(window, async move |this, cx| {
 2667            if let Some(paths) = paths.await.log_err().flatten() {
 2668                let results = this
 2669                    .update_in(cx, |this, window, cx| {
 2670                        this.open_paths(
 2671                            paths,
 2672                            OpenOptions {
 2673                                visible: Some(OpenVisible::All),
 2674                                ..Default::default()
 2675                            },
 2676                            None,
 2677                            window,
 2678                            cx,
 2679                        )
 2680                    })?
 2681                    .await;
 2682                for result in results.into_iter().flatten() {
 2683                    result.log_err();
 2684                }
 2685            }
 2686            anyhow::Ok(())
 2687        })
 2688        .detach_and_log_err(cx);
 2689    }
 2690
 2691    pub fn project_path_for_path(
 2692        project: Entity<Project>,
 2693        abs_path: &Path,
 2694        visible: bool,
 2695        cx: &mut App,
 2696    ) -> Task<Result<(Entity<Worktree>, ProjectPath)>> {
 2697        let entry = project.update(cx, |project, cx| {
 2698            project.find_or_create_worktree(abs_path, visible, cx)
 2699        });
 2700        cx.spawn(async move |cx| {
 2701            let (worktree, path) = entry.await?;
 2702            let worktree_id = worktree.read_with(cx, |t, _| t.id())?;
 2703            Ok((
 2704                worktree,
 2705                ProjectPath {
 2706                    worktree_id,
 2707                    path: path.into(),
 2708                },
 2709            ))
 2710        })
 2711    }
 2712
 2713    pub fn items<'a>(&'a self, cx: &'a App) -> impl 'a + Iterator<Item = &'a Box<dyn ItemHandle>> {
 2714        self.panes.iter().flat_map(|pane| pane.read(cx).items())
 2715    }
 2716
 2717    pub fn item_of_type<T: Item>(&self, cx: &App) -> Option<Entity<T>> {
 2718        self.items_of_type(cx).max_by_key(|item| item.item_id())
 2719    }
 2720
 2721    pub fn items_of_type<'a, T: Item>(
 2722        &'a self,
 2723        cx: &'a App,
 2724    ) -> impl 'a + Iterator<Item = Entity<T>> {
 2725        self.panes
 2726            .iter()
 2727            .flat_map(|pane| pane.read(cx).items_of_type())
 2728    }
 2729
 2730    pub fn active_item(&self, cx: &App) -> Option<Box<dyn ItemHandle>> {
 2731        self.active_pane().read(cx).active_item()
 2732    }
 2733
 2734    pub fn active_item_as<I: 'static>(&self, cx: &App) -> Option<Entity<I>> {
 2735        let item = self.active_item(cx)?;
 2736        item.to_any().downcast::<I>().ok()
 2737    }
 2738
 2739    fn active_project_path(&self, cx: &App) -> Option<ProjectPath> {
 2740        self.active_item(cx).and_then(|item| item.project_path(cx))
 2741    }
 2742
 2743    pub fn most_recent_active_path(&self, cx: &App) -> Option<PathBuf> {
 2744        self.recent_navigation_history_iter(cx)
 2745            .filter_map(|(path, abs_path)| {
 2746                let worktree = self
 2747                    .project
 2748                    .read(cx)
 2749                    .worktree_for_id(path.worktree_id, cx)?;
 2750                if worktree.read(cx).is_visible() {
 2751                    abs_path
 2752                } else {
 2753                    None
 2754                }
 2755            })
 2756            .next()
 2757    }
 2758
 2759    pub fn save_active_item(
 2760        &mut self,
 2761        save_intent: SaveIntent,
 2762        window: &mut Window,
 2763        cx: &mut App,
 2764    ) -> Task<Result<()>> {
 2765        let project = self.project.clone();
 2766        let pane = self.active_pane();
 2767        let item = pane.read(cx).active_item();
 2768        let pane = pane.downgrade();
 2769
 2770        window.spawn(cx, async move |cx| {
 2771            if let Some(item) = item {
 2772                Pane::save_item(project, &pane, item.as_ref(), save_intent, cx)
 2773                    .await
 2774                    .map(|_| ())
 2775            } else {
 2776                Ok(())
 2777            }
 2778        })
 2779    }
 2780
 2781    pub fn close_inactive_items_and_panes(
 2782        &mut self,
 2783        action: &CloseInactiveTabsAndPanes,
 2784        window: &mut Window,
 2785        cx: &mut Context<Self>,
 2786    ) {
 2787        if let Some(task) = self.close_all_internal(
 2788            true,
 2789            action.save_intent.unwrap_or(SaveIntent::Close),
 2790            window,
 2791            cx,
 2792        ) {
 2793            task.detach_and_log_err(cx)
 2794        }
 2795    }
 2796
 2797    pub fn close_all_items_and_panes(
 2798        &mut self,
 2799        action: &CloseAllItemsAndPanes,
 2800        window: &mut Window,
 2801        cx: &mut Context<Self>,
 2802    ) {
 2803        if let Some(task) = self.close_all_internal(
 2804            false,
 2805            action.save_intent.unwrap_or(SaveIntent::Close),
 2806            window,
 2807            cx,
 2808        ) {
 2809            task.detach_and_log_err(cx)
 2810        }
 2811    }
 2812
 2813    fn close_all_internal(
 2814        &mut self,
 2815        retain_active_pane: bool,
 2816        save_intent: SaveIntent,
 2817        window: &mut Window,
 2818        cx: &mut Context<Self>,
 2819    ) -> Option<Task<Result<()>>> {
 2820        let current_pane = self.active_pane();
 2821
 2822        let mut tasks = Vec::new();
 2823
 2824        if retain_active_pane {
 2825            let current_pane_close = current_pane.update(cx, |pane, cx| {
 2826                pane.close_other_items(
 2827                    &CloseOtherItems {
 2828                        save_intent: None,
 2829                        close_pinned: false,
 2830                    },
 2831                    None,
 2832                    window,
 2833                    cx,
 2834                )
 2835            });
 2836
 2837            tasks.push(current_pane_close);
 2838        }
 2839
 2840        for pane in self.panes() {
 2841            if retain_active_pane && pane.entity_id() == current_pane.entity_id() {
 2842                continue;
 2843            }
 2844
 2845            let close_pane_items = pane.update(cx, |pane: &mut Pane, cx| {
 2846                pane.close_all_items(
 2847                    &CloseAllItems {
 2848                        save_intent: Some(save_intent),
 2849                        close_pinned: false,
 2850                    },
 2851                    window,
 2852                    cx,
 2853                )
 2854            });
 2855
 2856            tasks.push(close_pane_items)
 2857        }
 2858
 2859        if tasks.is_empty() {
 2860            None
 2861        } else {
 2862            Some(cx.spawn_in(window, async move |_, _| {
 2863                for task in tasks {
 2864                    task.await?
 2865                }
 2866                Ok(())
 2867            }))
 2868        }
 2869    }
 2870
 2871    pub fn is_dock_at_position_open(&self, position: DockPosition, cx: &mut Context<Self>) -> bool {
 2872        self.dock_at_position(position).read(cx).is_open()
 2873    }
 2874
 2875    pub fn toggle_dock(
 2876        &mut self,
 2877        dock_side: DockPosition,
 2878        window: &mut Window,
 2879        cx: &mut Context<Self>,
 2880    ) {
 2881        let dock = self.dock_at_position(dock_side);
 2882        let mut focus_center = false;
 2883        let mut reveal_dock = false;
 2884        dock.update(cx, |dock, cx| {
 2885            let other_is_zoomed = self.zoomed.is_some() && self.zoomed_position != Some(dock_side);
 2886            let was_visible = dock.is_open() && !other_is_zoomed;
 2887            dock.set_open(!was_visible, window, cx);
 2888
 2889            if dock.active_panel().is_none() {
 2890                let Some(panel_ix) = dock
 2891                    .first_enabled_panel_idx(cx)
 2892                    .log_with_level(log::Level::Info)
 2893                else {
 2894                    return;
 2895                };
 2896                dock.activate_panel(panel_ix, window, cx);
 2897            }
 2898
 2899            if let Some(active_panel) = dock.active_panel() {
 2900                if was_visible {
 2901                    if active_panel
 2902                        .panel_focus_handle(cx)
 2903                        .contains_focused(window, cx)
 2904                    {
 2905                        focus_center = true;
 2906                    }
 2907                } else {
 2908                    let focus_handle = &active_panel.panel_focus_handle(cx);
 2909                    window.focus(focus_handle);
 2910                    reveal_dock = true;
 2911                }
 2912            }
 2913        });
 2914
 2915        if reveal_dock {
 2916            self.dismiss_zoomed_items_to_reveal(Some(dock_side), window, cx);
 2917        }
 2918
 2919        if focus_center {
 2920            self.active_pane
 2921                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)))
 2922        }
 2923
 2924        cx.notify();
 2925        self.serialize_workspace(window, cx);
 2926    }
 2927
 2928    fn active_dock(&self, window: &Window, cx: &Context<Self>) -> Option<&Entity<Dock>> {
 2929        self.all_docks().into_iter().find(|&dock| {
 2930            dock.read(cx).is_open() && dock.focus_handle(cx).contains_focused(window, cx)
 2931        })
 2932    }
 2933
 2934    fn close_active_dock(&mut self, window: &mut Window, cx: &mut Context<Self>) -> bool {
 2935        if let Some(dock) = self.active_dock(window, cx) {
 2936            dock.update(cx, |dock, cx| {
 2937                dock.set_open(false, window, cx);
 2938            });
 2939            return true;
 2940        }
 2941        false
 2942    }
 2943
 2944    pub fn close_all_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 2945        for dock in self.all_docks() {
 2946            dock.update(cx, |dock, cx| {
 2947                dock.set_open(false, window, cx);
 2948            });
 2949        }
 2950
 2951        cx.focus_self(window);
 2952        cx.notify();
 2953        self.serialize_workspace(window, cx);
 2954    }
 2955
 2956    /// Transfer focus to the panel of the given type.
 2957    pub fn focus_panel<T: Panel>(
 2958        &mut self,
 2959        window: &mut Window,
 2960        cx: &mut Context<Self>,
 2961    ) -> Option<Entity<T>> {
 2962        let panel = self.focus_or_unfocus_panel::<T>(window, cx, |_, _, _| true)?;
 2963        panel.to_any().downcast().ok()
 2964    }
 2965
 2966    /// Focus the panel of the given type if it isn't already focused. If it is
 2967    /// already focused, then transfer focus back to the workspace center.
 2968    pub fn toggle_panel_focus<T: Panel>(
 2969        &mut self,
 2970        window: &mut Window,
 2971        cx: &mut Context<Self>,
 2972    ) -> bool {
 2973        let mut did_focus_panel = false;
 2974        self.focus_or_unfocus_panel::<T>(window, cx, |panel, window, cx| {
 2975            did_focus_panel = !panel.panel_focus_handle(cx).contains_focused(window, cx);
 2976            did_focus_panel
 2977        });
 2978        did_focus_panel
 2979    }
 2980
 2981    pub fn activate_panel_for_proto_id(
 2982        &mut self,
 2983        panel_id: PanelId,
 2984        window: &mut Window,
 2985        cx: &mut Context<Self>,
 2986    ) -> Option<Arc<dyn PanelHandle>> {
 2987        let mut panel = None;
 2988        for dock in self.all_docks() {
 2989            if let Some(panel_index) = dock.read(cx).panel_index_for_proto_id(panel_id) {
 2990                panel = dock.update(cx, |dock, cx| {
 2991                    dock.activate_panel(panel_index, window, cx);
 2992                    dock.set_open(true, window, cx);
 2993                    dock.active_panel().cloned()
 2994                });
 2995                break;
 2996            }
 2997        }
 2998
 2999        if panel.is_some() {
 3000            cx.notify();
 3001            self.serialize_workspace(window, cx);
 3002        }
 3003
 3004        panel
 3005    }
 3006
 3007    /// Focus or unfocus the given panel type, depending on the given callback.
 3008    fn focus_or_unfocus_panel<T: Panel>(
 3009        &mut self,
 3010        window: &mut Window,
 3011        cx: &mut Context<Self>,
 3012        mut should_focus: impl FnMut(&dyn PanelHandle, &mut Window, &mut Context<Dock>) -> bool,
 3013    ) -> Option<Arc<dyn PanelHandle>> {
 3014        let mut result_panel = None;
 3015        let mut serialize = false;
 3016        for dock in self.all_docks() {
 3017            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3018                let mut focus_center = false;
 3019                let panel = dock.update(cx, |dock, cx| {
 3020                    dock.activate_panel(panel_index, window, cx);
 3021
 3022                    let panel = dock.active_panel().cloned();
 3023                    if let Some(panel) = panel.as_ref() {
 3024                        if should_focus(&**panel, window, cx) {
 3025                            dock.set_open(true, window, cx);
 3026                            panel.panel_focus_handle(cx).focus(window);
 3027                        } else {
 3028                            focus_center = true;
 3029                        }
 3030                    }
 3031                    panel
 3032                });
 3033
 3034                if focus_center {
 3035                    self.active_pane
 3036                        .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)))
 3037                }
 3038
 3039                result_panel = panel;
 3040                serialize = true;
 3041                break;
 3042            }
 3043        }
 3044
 3045        if serialize {
 3046            self.serialize_workspace(window, cx);
 3047        }
 3048
 3049        cx.notify();
 3050        result_panel
 3051    }
 3052
 3053    /// Open the panel of the given type
 3054    pub fn open_panel<T: Panel>(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3055        for dock in self.all_docks() {
 3056            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3057                dock.update(cx, |dock, cx| {
 3058                    dock.activate_panel(panel_index, window, cx);
 3059                    dock.set_open(true, window, cx);
 3060                });
 3061            }
 3062        }
 3063    }
 3064
 3065    pub fn panel<T: Panel>(&self, cx: &App) -> Option<Entity<T>> {
 3066        self.all_docks()
 3067            .iter()
 3068            .find_map(|dock| dock.read(cx).panel::<T>())
 3069    }
 3070
 3071    fn dismiss_zoomed_items_to_reveal(
 3072        &mut self,
 3073        dock_to_reveal: Option<DockPosition>,
 3074        window: &mut Window,
 3075        cx: &mut Context<Self>,
 3076    ) {
 3077        // If a center pane is zoomed, unzoom it.
 3078        for pane in &self.panes {
 3079            if pane != &self.active_pane || dock_to_reveal.is_some() {
 3080                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 3081            }
 3082        }
 3083
 3084        // If another dock is zoomed, hide it.
 3085        let mut focus_center = false;
 3086        for dock in self.all_docks() {
 3087            dock.update(cx, |dock, cx| {
 3088                if Some(dock.position()) != dock_to_reveal {
 3089                    if let Some(panel) = dock.active_panel() {
 3090                        if panel.is_zoomed(window, cx) {
 3091                            focus_center |=
 3092                                panel.panel_focus_handle(cx).contains_focused(window, cx);
 3093                            dock.set_open(false, window, cx);
 3094                        }
 3095                    }
 3096                }
 3097            });
 3098        }
 3099
 3100        if focus_center {
 3101            self.active_pane
 3102                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)))
 3103        }
 3104
 3105        if self.zoomed_position != dock_to_reveal {
 3106            self.zoomed = None;
 3107            self.zoomed_position = None;
 3108            cx.emit(Event::ZoomChanged);
 3109        }
 3110
 3111        cx.notify();
 3112    }
 3113
 3114    fn add_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 3115        let pane = cx.new(|cx| {
 3116            let mut pane = Pane::new(
 3117                self.weak_handle(),
 3118                self.project.clone(),
 3119                self.pane_history_timestamp.clone(),
 3120                None,
 3121                NewFile.boxed_clone(),
 3122                window,
 3123                cx,
 3124            );
 3125            pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 3126            pane
 3127        });
 3128        cx.subscribe_in(&pane, window, Self::handle_pane_event)
 3129            .detach();
 3130        self.panes.push(pane.clone());
 3131
 3132        window.focus(&pane.focus_handle(cx));
 3133
 3134        cx.emit(Event::PaneAdded(pane.clone()));
 3135        pane
 3136    }
 3137
 3138    pub fn add_item_to_center(
 3139        &mut self,
 3140        item: Box<dyn ItemHandle>,
 3141        window: &mut Window,
 3142        cx: &mut Context<Self>,
 3143    ) -> bool {
 3144        if let Some(center_pane) = self.last_active_center_pane.clone() {
 3145            if let Some(center_pane) = center_pane.upgrade() {
 3146                center_pane.update(cx, |pane, cx| {
 3147                    pane.add_item(item, true, true, None, window, cx)
 3148                });
 3149                true
 3150            } else {
 3151                false
 3152            }
 3153        } else {
 3154            false
 3155        }
 3156    }
 3157
 3158    pub fn add_item_to_active_pane(
 3159        &mut self,
 3160        item: Box<dyn ItemHandle>,
 3161        destination_index: Option<usize>,
 3162        focus_item: bool,
 3163        window: &mut Window,
 3164        cx: &mut App,
 3165    ) {
 3166        self.add_item(
 3167            self.active_pane.clone(),
 3168            item,
 3169            destination_index,
 3170            false,
 3171            focus_item,
 3172            window,
 3173            cx,
 3174        )
 3175    }
 3176
 3177    pub fn add_item(
 3178        &mut self,
 3179        pane: Entity<Pane>,
 3180        item: Box<dyn ItemHandle>,
 3181        destination_index: Option<usize>,
 3182        activate_pane: bool,
 3183        focus_item: bool,
 3184        window: &mut Window,
 3185        cx: &mut App,
 3186    ) {
 3187        if let Some(text) = item.telemetry_event_text(cx) {
 3188            telemetry::event!(text);
 3189        }
 3190
 3191        pane.update(cx, |pane, cx| {
 3192            pane.add_item(
 3193                item,
 3194                activate_pane,
 3195                focus_item,
 3196                destination_index,
 3197                window,
 3198                cx,
 3199            )
 3200        });
 3201    }
 3202
 3203    pub fn split_item(
 3204        &mut self,
 3205        split_direction: SplitDirection,
 3206        item: Box<dyn ItemHandle>,
 3207        window: &mut Window,
 3208        cx: &mut Context<Self>,
 3209    ) {
 3210        let new_pane = self.split_pane(self.active_pane.clone(), split_direction, window, cx);
 3211        self.add_item(new_pane, item, None, true, true, window, cx);
 3212    }
 3213
 3214    pub fn open_abs_path(
 3215        &mut self,
 3216        abs_path: PathBuf,
 3217        options: OpenOptions,
 3218        window: &mut Window,
 3219        cx: &mut Context<Self>,
 3220    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3221        cx.spawn_in(window, async move |workspace, cx| {
 3222            let open_paths_task_result = workspace
 3223                .update_in(cx, |workspace, window, cx| {
 3224                    workspace.open_paths(vec![abs_path.clone()], options, None, window, cx)
 3225                })
 3226                .with_context(|| format!("open abs path {abs_path:?} task spawn"))?
 3227                .await;
 3228            anyhow::ensure!(
 3229                open_paths_task_result.len() == 1,
 3230                "open abs path {abs_path:?} task returned incorrect number of results"
 3231            );
 3232            match open_paths_task_result
 3233                .into_iter()
 3234                .next()
 3235                .expect("ensured single task result")
 3236            {
 3237                Some(open_result) => {
 3238                    open_result.with_context(|| format!("open abs path {abs_path:?} task join"))
 3239                }
 3240                None => anyhow::bail!("open abs path {abs_path:?} task returned None"),
 3241            }
 3242        })
 3243    }
 3244
 3245    pub fn split_abs_path(
 3246        &mut self,
 3247        abs_path: PathBuf,
 3248        visible: bool,
 3249        window: &mut Window,
 3250        cx: &mut Context<Self>,
 3251    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3252        let project_path_task =
 3253            Workspace::project_path_for_path(self.project.clone(), &abs_path, visible, cx);
 3254        cx.spawn_in(window, async move |this, cx| {
 3255            let (_, path) = project_path_task.await?;
 3256            this.update_in(cx, |this, window, cx| this.split_path(path, window, cx))?
 3257                .await
 3258        })
 3259    }
 3260
 3261    pub fn open_path(
 3262        &mut self,
 3263        path: impl Into<ProjectPath>,
 3264        pane: Option<WeakEntity<Pane>>,
 3265        focus_item: bool,
 3266        window: &mut Window,
 3267        cx: &mut App,
 3268    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3269        self.open_path_preview(path, pane, focus_item, false, true, window, cx)
 3270    }
 3271
 3272    pub fn open_path_preview(
 3273        &mut self,
 3274        path: impl Into<ProjectPath>,
 3275        pane: Option<WeakEntity<Pane>>,
 3276        focus_item: bool,
 3277        allow_preview: bool,
 3278        activate: bool,
 3279        window: &mut Window,
 3280        cx: &mut App,
 3281    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3282        let pane = pane.unwrap_or_else(|| {
 3283            self.last_active_center_pane.clone().unwrap_or_else(|| {
 3284                self.panes
 3285                    .first()
 3286                    .expect("There must be an active pane")
 3287                    .downgrade()
 3288            })
 3289        });
 3290
 3291        let project_path = path.into();
 3292        let task = self.load_path(project_path.clone(), window, cx);
 3293        window.spawn(cx, async move |cx| {
 3294            let (project_entry_id, build_item) = task.await?;
 3295            let result = pane.update_in(cx, |pane, window, cx| {
 3296                pane.open_item(
 3297                    project_entry_id,
 3298                    project_path,
 3299                    focus_item,
 3300                    allow_preview,
 3301                    activate,
 3302                    None,
 3303                    window,
 3304                    cx,
 3305                    build_item,
 3306                )
 3307            });
 3308            result
 3309        })
 3310    }
 3311
 3312    pub fn split_path(
 3313        &mut self,
 3314        path: impl Into<ProjectPath>,
 3315        window: &mut Window,
 3316        cx: &mut Context<Self>,
 3317    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3318        self.split_path_preview(path, false, None, window, cx)
 3319    }
 3320
 3321    pub fn split_path_preview(
 3322        &mut self,
 3323        path: impl Into<ProjectPath>,
 3324        allow_preview: bool,
 3325        split_direction: Option<SplitDirection>,
 3326        window: &mut Window,
 3327        cx: &mut Context<Self>,
 3328    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3329        let pane = self.last_active_center_pane.clone().unwrap_or_else(|| {
 3330            self.panes
 3331                .first()
 3332                .expect("There must be an active pane")
 3333                .downgrade()
 3334        });
 3335
 3336        if let Member::Pane(center_pane) = &self.center.root {
 3337            if center_pane.read(cx).items_len() == 0 {
 3338                return self.open_path(path, Some(pane), true, window, cx);
 3339            }
 3340        }
 3341
 3342        let project_path = path.into();
 3343        let task = self.load_path(project_path.clone(), window, cx);
 3344        cx.spawn_in(window, async move |this, cx| {
 3345            let (project_entry_id, build_item) = task.await?;
 3346            this.update_in(cx, move |this, window, cx| -> Option<_> {
 3347                let pane = pane.upgrade()?;
 3348                let new_pane = this.split_pane(
 3349                    pane,
 3350                    split_direction.unwrap_or(SplitDirection::Right),
 3351                    window,
 3352                    cx,
 3353                );
 3354                new_pane.update(cx, |new_pane, cx| {
 3355                    Some(new_pane.open_item(
 3356                        project_entry_id,
 3357                        project_path,
 3358                        true,
 3359                        allow_preview,
 3360                        true,
 3361                        None,
 3362                        window,
 3363                        cx,
 3364                        build_item,
 3365                    ))
 3366                })
 3367            })
 3368            .map(|option| option.context("pane was dropped"))?
 3369        })
 3370    }
 3371
 3372    fn load_path(
 3373        &mut self,
 3374        path: ProjectPath,
 3375        window: &mut Window,
 3376        cx: &mut App,
 3377    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
 3378        let project = self.project().clone();
 3379        let registry = cx.default_global::<ProjectItemRegistry>().clone();
 3380        registry.open_path(&project, &path, window, cx)
 3381    }
 3382
 3383    pub fn find_project_item<T>(
 3384        &self,
 3385        pane: &Entity<Pane>,
 3386        project_item: &Entity<T::Item>,
 3387        cx: &App,
 3388    ) -> Option<Entity<T>>
 3389    where
 3390        T: ProjectItem,
 3391    {
 3392        use project::ProjectItem as _;
 3393        let project_item = project_item.read(cx);
 3394        let entry_id = project_item.entry_id(cx);
 3395        let project_path = project_item.project_path(cx);
 3396
 3397        let mut item = None;
 3398        if let Some(entry_id) = entry_id {
 3399            item = pane.read(cx).item_for_entry(entry_id, cx);
 3400        }
 3401        if item.is_none() {
 3402            if let Some(project_path) = project_path {
 3403                item = pane.read(cx).item_for_path(project_path, cx);
 3404            }
 3405        }
 3406
 3407        item.and_then(|item| item.downcast::<T>())
 3408    }
 3409
 3410    pub fn is_project_item_open<T>(
 3411        &self,
 3412        pane: &Entity<Pane>,
 3413        project_item: &Entity<T::Item>,
 3414        cx: &App,
 3415    ) -> bool
 3416    where
 3417        T: ProjectItem,
 3418    {
 3419        self.find_project_item::<T>(pane, project_item, cx)
 3420            .is_some()
 3421    }
 3422
 3423    pub fn open_project_item<T>(
 3424        &mut self,
 3425        pane: Entity<Pane>,
 3426        project_item: Entity<T::Item>,
 3427        activate_pane: bool,
 3428        focus_item: bool,
 3429        window: &mut Window,
 3430        cx: &mut Context<Self>,
 3431    ) -> Entity<T>
 3432    where
 3433        T: ProjectItem,
 3434    {
 3435        if let Some(item) = self.find_project_item(&pane, &project_item, cx) {
 3436            self.activate_item(&item, activate_pane, focus_item, window, cx);
 3437            return item;
 3438        }
 3439
 3440        let item = pane.update(cx, |pane, cx| {
 3441            cx.new(|cx| {
 3442                T::for_project_item(self.project().clone(), Some(pane), project_item, window, cx)
 3443            })
 3444        });
 3445        let item_id = item.item_id();
 3446        let mut destination_index = None;
 3447        pane.update(cx, |pane, cx| {
 3448            if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
 3449                if let Some(preview_item_id) = pane.preview_item_id() {
 3450                    if preview_item_id != item_id {
 3451                        destination_index = pane.close_current_preview_item(window, cx);
 3452                    }
 3453                }
 3454            }
 3455            pane.set_preview_item_id(Some(item.item_id()), cx)
 3456        });
 3457
 3458        self.add_item(
 3459            pane,
 3460            Box::new(item.clone()),
 3461            destination_index,
 3462            activate_pane,
 3463            focus_item,
 3464            window,
 3465            cx,
 3466        );
 3467        item
 3468    }
 3469
 3470    pub fn open_shared_screen(
 3471        &mut self,
 3472        peer_id: PeerId,
 3473        window: &mut Window,
 3474        cx: &mut Context<Self>,
 3475    ) {
 3476        if let Some(shared_screen) =
 3477            self.shared_screen_for_peer(peer_id, &self.active_pane, window, cx)
 3478        {
 3479            self.active_pane.update(cx, |pane, cx| {
 3480                pane.add_item(Box::new(shared_screen), false, true, None, window, cx)
 3481            });
 3482        }
 3483    }
 3484
 3485    pub fn activate_item(
 3486        &mut self,
 3487        item: &dyn ItemHandle,
 3488        activate_pane: bool,
 3489        focus_item: bool,
 3490        window: &mut Window,
 3491        cx: &mut App,
 3492    ) -> bool {
 3493        let result = self.panes.iter().find_map(|pane| {
 3494            pane.read(cx)
 3495                .index_for_item(item)
 3496                .map(|ix| (pane.clone(), ix))
 3497        });
 3498        if let Some((pane, ix)) = result {
 3499            pane.update(cx, |pane, cx| {
 3500                pane.activate_item(ix, activate_pane, focus_item, window, cx)
 3501            });
 3502            true
 3503        } else {
 3504            false
 3505        }
 3506    }
 3507
 3508    fn activate_pane_at_index(
 3509        &mut self,
 3510        action: &ActivatePane,
 3511        window: &mut Window,
 3512        cx: &mut Context<Self>,
 3513    ) {
 3514        let panes = self.center.panes();
 3515        if let Some(pane) = panes.get(action.0).map(|p| (*p).clone()) {
 3516            window.focus(&pane.focus_handle(cx));
 3517        } else {
 3518            self.split_and_clone(self.active_pane.clone(), SplitDirection::Right, window, cx);
 3519        }
 3520    }
 3521
 3522    fn move_item_to_pane_at_index(
 3523        &mut self,
 3524        action: &MoveItemToPane,
 3525        window: &mut Window,
 3526        cx: &mut Context<Self>,
 3527    ) {
 3528        let panes = self.center.panes();
 3529        let destination = match panes.get(action.destination) {
 3530            Some(&destination) => destination.clone(),
 3531            None => {
 3532                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 3533                    return;
 3534                }
 3535                let direction = SplitDirection::Right;
 3536                let split_off_pane = self
 3537                    .find_pane_in_direction(direction, cx)
 3538                    .unwrap_or_else(|| self.active_pane.clone());
 3539                let new_pane = self.add_pane(window, cx);
 3540                if self
 3541                    .center
 3542                    .split(&split_off_pane, &new_pane, direction)
 3543                    .log_err()
 3544                    .is_none()
 3545                {
 3546                    return;
 3547                };
 3548                new_pane
 3549            }
 3550        };
 3551
 3552        if action.clone {
 3553            clone_active_item(
 3554                self.database_id(),
 3555                &self.active_pane,
 3556                &destination,
 3557                action.focus,
 3558                window,
 3559                cx,
 3560            )
 3561        } else {
 3562            move_active_item(
 3563                &self.active_pane,
 3564                &destination,
 3565                action.focus,
 3566                true,
 3567                window,
 3568                cx,
 3569            )
 3570        }
 3571    }
 3572
 3573    pub fn activate_next_pane(&mut self, window: &mut Window, cx: &mut App) {
 3574        let panes = self.center.panes();
 3575        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 3576            let next_ix = (ix + 1) % panes.len();
 3577            let next_pane = panes[next_ix].clone();
 3578            window.focus(&next_pane.focus_handle(cx));
 3579        }
 3580    }
 3581
 3582    pub fn activate_previous_pane(&mut self, window: &mut Window, cx: &mut App) {
 3583        let panes = self.center.panes();
 3584        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 3585            let prev_ix = cmp::min(ix.wrapping_sub(1), panes.len() - 1);
 3586            let prev_pane = panes[prev_ix].clone();
 3587            window.focus(&prev_pane.focus_handle(cx));
 3588        }
 3589    }
 3590
 3591    pub fn activate_pane_in_direction(
 3592        &mut self,
 3593        direction: SplitDirection,
 3594        window: &mut Window,
 3595        cx: &mut App,
 3596    ) {
 3597        use ActivateInDirectionTarget as Target;
 3598        enum Origin {
 3599            LeftDock,
 3600            RightDock,
 3601            BottomDock,
 3602            Center,
 3603        }
 3604
 3605        let origin: Origin = [
 3606            (&self.left_dock, Origin::LeftDock),
 3607            (&self.right_dock, Origin::RightDock),
 3608            (&self.bottom_dock, Origin::BottomDock),
 3609        ]
 3610        .into_iter()
 3611        .find_map(|(dock, origin)| {
 3612            if dock.focus_handle(cx).contains_focused(window, cx) && dock.read(cx).is_open() {
 3613                Some(origin)
 3614            } else {
 3615                None
 3616            }
 3617        })
 3618        .unwrap_or(Origin::Center);
 3619
 3620        let get_last_active_pane = || {
 3621            let pane = self
 3622                .last_active_center_pane
 3623                .clone()
 3624                .unwrap_or_else(|| {
 3625                    self.panes
 3626                        .first()
 3627                        .expect("There must be an active pane")
 3628                        .downgrade()
 3629                })
 3630                .upgrade()?;
 3631            (pane.read(cx).items_len() != 0).then_some(pane)
 3632        };
 3633
 3634        let try_dock =
 3635            |dock: &Entity<Dock>| dock.read(cx).is_open().then(|| Target::Dock(dock.clone()));
 3636
 3637        let target = match (origin, direction) {
 3638            // We're in the center, so we first try to go to a different pane,
 3639            // otherwise try to go to a dock.
 3640            (Origin::Center, direction) => {
 3641                if let Some(pane) = self.find_pane_in_direction(direction, cx) {
 3642                    Some(Target::Pane(pane))
 3643                } else {
 3644                    match direction {
 3645                        SplitDirection::Up => None,
 3646                        SplitDirection::Down => try_dock(&self.bottom_dock),
 3647                        SplitDirection::Left => try_dock(&self.left_dock),
 3648                        SplitDirection::Right => try_dock(&self.right_dock),
 3649                    }
 3650                }
 3651            }
 3652
 3653            (Origin::LeftDock, SplitDirection::Right) => {
 3654                if let Some(last_active_pane) = get_last_active_pane() {
 3655                    Some(Target::Pane(last_active_pane))
 3656                } else {
 3657                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.right_dock))
 3658                }
 3659            }
 3660
 3661            (Origin::LeftDock, SplitDirection::Down)
 3662            | (Origin::RightDock, SplitDirection::Down) => try_dock(&self.bottom_dock),
 3663
 3664            (Origin::BottomDock, SplitDirection::Up) => get_last_active_pane().map(Target::Pane),
 3665            (Origin::BottomDock, SplitDirection::Left) => try_dock(&self.left_dock),
 3666            (Origin::BottomDock, SplitDirection::Right) => try_dock(&self.right_dock),
 3667
 3668            (Origin::RightDock, SplitDirection::Left) => {
 3669                if let Some(last_active_pane) = get_last_active_pane() {
 3670                    Some(Target::Pane(last_active_pane))
 3671                } else {
 3672                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.left_dock))
 3673                }
 3674            }
 3675
 3676            _ => None,
 3677        };
 3678
 3679        match target {
 3680            Some(ActivateInDirectionTarget::Pane(pane)) => {
 3681                let pane = pane.read(cx);
 3682                if let Some(item) = pane.active_item() {
 3683                    item.item_focus_handle(cx).focus(window);
 3684                } else {
 3685                    log::error!(
 3686                        "Could not find a focus target when in switching focus in {direction} direction for a pane",
 3687                    );
 3688                }
 3689            }
 3690            Some(ActivateInDirectionTarget::Dock(dock)) => {
 3691                // Defer this to avoid a panic when the dock's active panel is already on the stack.
 3692                window.defer(cx, move |window, cx| {
 3693                    let dock = dock.read(cx);
 3694                    if let Some(panel) = dock.active_panel() {
 3695                        panel.panel_focus_handle(cx).focus(window);
 3696                    } else {
 3697                        log::error!("Could not find a focus target when in switching focus in {direction} direction for a {:?} dock", dock.position());
 3698                    }
 3699                })
 3700            }
 3701            None => {}
 3702        }
 3703    }
 3704
 3705    pub fn move_item_to_pane_in_direction(
 3706        &mut self,
 3707        action: &MoveItemToPaneInDirection,
 3708        window: &mut Window,
 3709        cx: &mut Context<Self>,
 3710    ) {
 3711        let destination = match self.find_pane_in_direction(action.direction, cx) {
 3712            Some(destination) => destination,
 3713            None => {
 3714                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 3715                    return;
 3716                }
 3717                let new_pane = self.add_pane(window, cx);
 3718                if self
 3719                    .center
 3720                    .split(&self.active_pane, &new_pane, action.direction)
 3721                    .log_err()
 3722                    .is_none()
 3723                {
 3724                    return;
 3725                };
 3726                new_pane
 3727            }
 3728        };
 3729
 3730        if action.clone {
 3731            clone_active_item(
 3732                self.database_id(),
 3733                &self.active_pane,
 3734                &destination,
 3735                action.focus,
 3736                window,
 3737                cx,
 3738            )
 3739        } else {
 3740            move_active_item(
 3741                &self.active_pane,
 3742                &destination,
 3743                action.focus,
 3744                true,
 3745                window,
 3746                cx,
 3747            );
 3748        }
 3749    }
 3750
 3751    pub fn bounding_box_for_pane(&self, pane: &Entity<Pane>) -> Option<Bounds<Pixels>> {
 3752        self.center.bounding_box_for_pane(pane)
 3753    }
 3754
 3755    pub fn find_pane_in_direction(
 3756        &mut self,
 3757        direction: SplitDirection,
 3758        cx: &App,
 3759    ) -> Option<Entity<Pane>> {
 3760        self.center
 3761            .find_pane_in_direction(&self.active_pane, direction, cx)
 3762            .cloned()
 3763    }
 3764
 3765    pub fn swap_pane_in_direction(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 3766        if let Some(to) = self.find_pane_in_direction(direction, cx) {
 3767            self.center.swap(&self.active_pane, &to);
 3768            cx.notify();
 3769        }
 3770    }
 3771
 3772    pub fn resize_pane(
 3773        &mut self,
 3774        axis: gpui::Axis,
 3775        amount: Pixels,
 3776        window: &mut Window,
 3777        cx: &mut Context<Self>,
 3778    ) {
 3779        let docks = self.all_docks();
 3780        let active_dock = docks
 3781            .into_iter()
 3782            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 3783
 3784        if let Some(dock) = active_dock {
 3785            let Some(panel_size) = dock.read(cx).active_panel_size(window, cx) else {
 3786                return;
 3787            };
 3788            match dock.read(cx).position() {
 3789                DockPosition::Left => self.resize_left_dock(panel_size + amount, window, cx),
 3790                DockPosition::Bottom => self.resize_bottom_dock(panel_size + amount, window, cx),
 3791                DockPosition::Right => self.resize_right_dock(panel_size + amount, window, cx),
 3792            }
 3793        } else {
 3794            self.center
 3795                .resize(&self.active_pane, axis, amount, &self.bounds);
 3796        }
 3797        cx.notify();
 3798    }
 3799
 3800    pub fn reset_pane_sizes(&mut self, cx: &mut Context<Self>) {
 3801        self.center.reset_pane_sizes();
 3802        cx.notify();
 3803    }
 3804
 3805    fn handle_pane_focused(
 3806        &mut self,
 3807        pane: Entity<Pane>,
 3808        window: &mut Window,
 3809        cx: &mut Context<Self>,
 3810    ) {
 3811        // This is explicitly hoisted out of the following check for pane identity as
 3812        // terminal panel panes are not registered as a center panes.
 3813        self.status_bar.update(cx, |status_bar, cx| {
 3814            status_bar.set_active_pane(&pane, window, cx);
 3815        });
 3816        if self.active_pane != pane {
 3817            self.set_active_pane(&pane, window, cx);
 3818        }
 3819
 3820        if self.last_active_center_pane.is_none() {
 3821            self.last_active_center_pane = Some(pane.downgrade());
 3822        }
 3823
 3824        self.dismiss_zoomed_items_to_reveal(None, window, cx);
 3825        if pane.read(cx).is_zoomed() {
 3826            self.zoomed = Some(pane.downgrade().into());
 3827        } else {
 3828            self.zoomed = None;
 3829        }
 3830        self.zoomed_position = None;
 3831        cx.emit(Event::ZoomChanged);
 3832        self.update_active_view_for_followers(window, cx);
 3833        pane.update(cx, |pane, _| {
 3834            pane.track_alternate_file_items();
 3835        });
 3836
 3837        cx.notify();
 3838    }
 3839
 3840    fn set_active_pane(
 3841        &mut self,
 3842        pane: &Entity<Pane>,
 3843        window: &mut Window,
 3844        cx: &mut Context<Self>,
 3845    ) {
 3846        self.active_pane = pane.clone();
 3847        self.active_item_path_changed(window, cx);
 3848        self.last_active_center_pane = Some(pane.downgrade());
 3849    }
 3850
 3851    fn handle_panel_focused(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3852        self.update_active_view_for_followers(window, cx);
 3853    }
 3854
 3855    fn handle_pane_event(
 3856        &mut self,
 3857        pane: &Entity<Pane>,
 3858        event: &pane::Event,
 3859        window: &mut Window,
 3860        cx: &mut Context<Self>,
 3861    ) {
 3862        let mut serialize_workspace = true;
 3863        match event {
 3864            pane::Event::AddItem { item } => {
 3865                item.added_to_pane(self, pane.clone(), window, cx);
 3866                cx.emit(Event::ItemAdded {
 3867                    item: item.boxed_clone(),
 3868                });
 3869            }
 3870            pane::Event::Split(direction) => {
 3871                self.split_and_clone(pane.clone(), *direction, window, cx);
 3872            }
 3873            pane::Event::JoinIntoNext => {
 3874                self.join_pane_into_next(pane.clone(), window, cx);
 3875            }
 3876            pane::Event::JoinAll => {
 3877                self.join_all_panes(window, cx);
 3878            }
 3879            pane::Event::Remove { focus_on_pane } => {
 3880                self.remove_pane(pane.clone(), focus_on_pane.clone(), window, cx);
 3881            }
 3882            pane::Event::ActivateItem {
 3883                local,
 3884                focus_changed,
 3885            } => {
 3886                window.invalidate_character_coordinates();
 3887
 3888                pane.update(cx, |pane, _| {
 3889                    pane.track_alternate_file_items();
 3890                });
 3891                if *local {
 3892                    self.unfollow_in_pane(pane, window, cx);
 3893                }
 3894                serialize_workspace = *focus_changed || pane != self.active_pane();
 3895                if pane == self.active_pane() {
 3896                    self.active_item_path_changed(window, cx);
 3897                    self.update_active_view_for_followers(window, cx);
 3898                } else if *local {
 3899                    self.set_active_pane(pane, window, cx);
 3900                }
 3901            }
 3902            pane::Event::UserSavedItem { item, save_intent } => {
 3903                cx.emit(Event::UserSavedItem {
 3904                    pane: pane.downgrade(),
 3905                    item: item.boxed_clone(),
 3906                    save_intent: *save_intent,
 3907                });
 3908                serialize_workspace = false;
 3909            }
 3910            pane::Event::ChangeItemTitle => {
 3911                if *pane == self.active_pane {
 3912                    self.active_item_path_changed(window, cx);
 3913                }
 3914                serialize_workspace = false;
 3915            }
 3916            pane::Event::RemoveItem { .. } => {}
 3917            pane::Event::RemovedItem { item } => {
 3918                cx.emit(Event::ActiveItemChanged);
 3919                self.update_window_edited(window, cx);
 3920                if let hash_map::Entry::Occupied(entry) = self.panes_by_item.entry(item.item_id()) {
 3921                    if entry.get().entity_id() == pane.entity_id() {
 3922                        entry.remove();
 3923                    }
 3924                }
 3925            }
 3926            pane::Event::Focus => {
 3927                window.invalidate_character_coordinates();
 3928                self.handle_pane_focused(pane.clone(), window, cx);
 3929            }
 3930            pane::Event::ZoomIn => {
 3931                if *pane == self.active_pane {
 3932                    pane.update(cx, |pane, cx| pane.set_zoomed(true, cx));
 3933                    if pane.read(cx).has_focus(window, cx) {
 3934                        self.zoomed = Some(pane.downgrade().into());
 3935                        self.zoomed_position = None;
 3936                        cx.emit(Event::ZoomChanged);
 3937                    }
 3938                    cx.notify();
 3939                }
 3940            }
 3941            pane::Event::ZoomOut => {
 3942                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 3943                if self.zoomed_position.is_none() {
 3944                    self.zoomed = None;
 3945                    cx.emit(Event::ZoomChanged);
 3946                }
 3947                cx.notify();
 3948            }
 3949            pane::Event::ItemPinned | pane::Event::ItemUnpinned => {}
 3950        }
 3951
 3952        if serialize_workspace {
 3953            self.serialize_workspace(window, cx);
 3954        }
 3955    }
 3956
 3957    pub fn unfollow_in_pane(
 3958        &mut self,
 3959        pane: &Entity<Pane>,
 3960        window: &mut Window,
 3961        cx: &mut Context<Workspace>,
 3962    ) -> Option<CollaboratorId> {
 3963        let leader_id = self.leader_for_pane(pane)?;
 3964        self.unfollow(leader_id, window, cx);
 3965        Some(leader_id)
 3966    }
 3967
 3968    pub fn split_pane(
 3969        &mut self,
 3970        pane_to_split: Entity<Pane>,
 3971        split_direction: SplitDirection,
 3972        window: &mut Window,
 3973        cx: &mut Context<Self>,
 3974    ) -> Entity<Pane> {
 3975        let new_pane = self.add_pane(window, cx);
 3976        self.center
 3977            .split(&pane_to_split, &new_pane, split_direction)
 3978            .unwrap();
 3979        cx.notify();
 3980        new_pane
 3981    }
 3982
 3983    pub fn split_and_clone(
 3984        &mut self,
 3985        pane: Entity<Pane>,
 3986        direction: SplitDirection,
 3987        window: &mut Window,
 3988        cx: &mut Context<Self>,
 3989    ) -> Option<Entity<Pane>> {
 3990        let item = pane.read(cx).active_item()?;
 3991        let maybe_pane_handle =
 3992            if let Some(clone) = item.clone_on_split(self.database_id(), window, cx) {
 3993                let new_pane = self.add_pane(window, cx);
 3994                new_pane.update(cx, |pane, cx| {
 3995                    pane.add_item(clone, true, true, None, window, cx)
 3996                });
 3997                self.center.split(&pane, &new_pane, direction).unwrap();
 3998                Some(new_pane)
 3999            } else {
 4000                None
 4001            };
 4002        cx.notify();
 4003        maybe_pane_handle
 4004    }
 4005
 4006    pub fn split_pane_with_item(
 4007        &mut self,
 4008        pane_to_split: WeakEntity<Pane>,
 4009        split_direction: SplitDirection,
 4010        from: WeakEntity<Pane>,
 4011        item_id_to_move: EntityId,
 4012        window: &mut Window,
 4013        cx: &mut Context<Self>,
 4014    ) {
 4015        let Some(pane_to_split) = pane_to_split.upgrade() else {
 4016            return;
 4017        };
 4018        let Some(from) = from.upgrade() else {
 4019            return;
 4020        };
 4021
 4022        let new_pane = self.add_pane(window, cx);
 4023        move_item(&from, &new_pane, item_id_to_move, 0, true, window, cx);
 4024        self.center
 4025            .split(&pane_to_split, &new_pane, split_direction)
 4026            .unwrap();
 4027        cx.notify();
 4028    }
 4029
 4030    pub fn split_pane_with_project_entry(
 4031        &mut self,
 4032        pane_to_split: WeakEntity<Pane>,
 4033        split_direction: SplitDirection,
 4034        project_entry: ProjectEntryId,
 4035        window: &mut Window,
 4036        cx: &mut Context<Self>,
 4037    ) -> Option<Task<Result<()>>> {
 4038        let pane_to_split = pane_to_split.upgrade()?;
 4039        let new_pane = self.add_pane(window, cx);
 4040        self.center
 4041            .split(&pane_to_split, &new_pane, split_direction)
 4042            .unwrap();
 4043
 4044        let path = self.project.read(cx).path_for_entry(project_entry, cx)?;
 4045        let task = self.open_path(path, Some(new_pane.downgrade()), true, window, cx);
 4046        Some(cx.foreground_executor().spawn(async move {
 4047            task.await?;
 4048            Ok(())
 4049        }))
 4050    }
 4051
 4052    pub fn join_all_panes(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4053        let active_item = self.active_pane.read(cx).active_item();
 4054        for pane in &self.panes {
 4055            join_pane_into_active(&self.active_pane, pane, window, cx);
 4056        }
 4057        if let Some(active_item) = active_item {
 4058            self.activate_item(active_item.as_ref(), true, true, window, cx);
 4059        }
 4060        cx.notify();
 4061    }
 4062
 4063    pub fn join_pane_into_next(
 4064        &mut self,
 4065        pane: Entity<Pane>,
 4066        window: &mut Window,
 4067        cx: &mut Context<Self>,
 4068    ) {
 4069        let next_pane = self
 4070            .find_pane_in_direction(SplitDirection::Right, cx)
 4071            .or_else(|| self.find_pane_in_direction(SplitDirection::Down, cx))
 4072            .or_else(|| self.find_pane_in_direction(SplitDirection::Left, cx))
 4073            .or_else(|| self.find_pane_in_direction(SplitDirection::Up, cx));
 4074        let Some(next_pane) = next_pane else {
 4075            return;
 4076        };
 4077        move_all_items(&pane, &next_pane, window, cx);
 4078        cx.notify();
 4079    }
 4080
 4081    fn remove_pane(
 4082        &mut self,
 4083        pane: Entity<Pane>,
 4084        focus_on: Option<Entity<Pane>>,
 4085        window: &mut Window,
 4086        cx: &mut Context<Self>,
 4087    ) {
 4088        if self.center.remove(&pane).unwrap() {
 4089            self.force_remove_pane(&pane, &focus_on, window, cx);
 4090            self.unfollow_in_pane(&pane, window, cx);
 4091            self.last_leaders_by_pane.remove(&pane.downgrade());
 4092            for removed_item in pane.read(cx).items() {
 4093                self.panes_by_item.remove(&removed_item.item_id());
 4094            }
 4095
 4096            cx.notify();
 4097        } else {
 4098            self.active_item_path_changed(window, cx);
 4099        }
 4100        cx.emit(Event::PaneRemoved);
 4101    }
 4102
 4103    pub fn panes(&self) -> &[Entity<Pane>] {
 4104        &self.panes
 4105    }
 4106
 4107    pub fn active_pane(&self) -> &Entity<Pane> {
 4108        &self.active_pane
 4109    }
 4110
 4111    pub fn focused_pane(&self, window: &Window, cx: &App) -> Entity<Pane> {
 4112        for dock in self.all_docks() {
 4113            if dock.focus_handle(cx).contains_focused(window, cx) {
 4114                if let Some(pane) = dock
 4115                    .read(cx)
 4116                    .active_panel()
 4117                    .and_then(|panel| panel.pane(cx))
 4118                {
 4119                    return pane;
 4120                }
 4121            }
 4122        }
 4123        self.active_pane().clone()
 4124    }
 4125
 4126    pub fn adjacent_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 4127        self.find_pane_in_direction(SplitDirection::Right, cx)
 4128            .or_else(|| self.find_pane_in_direction(SplitDirection::Left, cx))
 4129            .unwrap_or_else(|| {
 4130                self.split_pane(self.active_pane.clone(), SplitDirection::Right, window, cx)
 4131            })
 4132            .clone()
 4133    }
 4134
 4135    pub fn pane_for(&self, handle: &dyn ItemHandle) -> Option<Entity<Pane>> {
 4136        let weak_pane = self.panes_by_item.get(&handle.item_id())?;
 4137        weak_pane.upgrade()
 4138    }
 4139
 4140    fn collaborator_left(&mut self, peer_id: PeerId, window: &mut Window, cx: &mut Context<Self>) {
 4141        self.follower_states.retain(|leader_id, state| {
 4142            if *leader_id == CollaboratorId::PeerId(peer_id) {
 4143                for item in state.items_by_leader_view_id.values() {
 4144                    item.view.set_leader_id(None, window, cx);
 4145                }
 4146                false
 4147            } else {
 4148                true
 4149            }
 4150        });
 4151        cx.notify();
 4152    }
 4153
 4154    pub fn start_following(
 4155        &mut self,
 4156        leader_id: impl Into<CollaboratorId>,
 4157        window: &mut Window,
 4158        cx: &mut Context<Self>,
 4159    ) -> Option<Task<Result<()>>> {
 4160        let leader_id = leader_id.into();
 4161        let pane = self.active_pane().clone();
 4162
 4163        self.last_leaders_by_pane
 4164            .insert(pane.downgrade(), leader_id);
 4165        self.unfollow(leader_id, window, cx);
 4166        self.unfollow_in_pane(&pane, window, cx);
 4167        self.follower_states.insert(
 4168            leader_id,
 4169            FollowerState {
 4170                center_pane: pane.clone(),
 4171                dock_pane: None,
 4172                active_view_id: None,
 4173                items_by_leader_view_id: Default::default(),
 4174            },
 4175        );
 4176        cx.notify();
 4177
 4178        match leader_id {
 4179            CollaboratorId::PeerId(leader_peer_id) => {
 4180                let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4181                let project_id = self.project.read(cx).remote_id();
 4182                let request = self.app_state.client.request(proto::Follow {
 4183                    room_id,
 4184                    project_id,
 4185                    leader_id: Some(leader_peer_id),
 4186                });
 4187
 4188                Some(cx.spawn_in(window, async move |this, cx| {
 4189                    let response = request.await?;
 4190                    this.update(cx, |this, _| {
 4191                        let state = this
 4192                            .follower_states
 4193                            .get_mut(&leader_id)
 4194                            .context("following interrupted")?;
 4195                        state.active_view_id = response
 4196                            .active_view
 4197                            .as_ref()
 4198                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4199                        anyhow::Ok(())
 4200                    })??;
 4201                    if let Some(view) = response.active_view {
 4202                        Self::add_view_from_leader(this.clone(), leader_peer_id, &view, cx).await?;
 4203                    }
 4204                    this.update_in(cx, |this, window, cx| {
 4205                        this.leader_updated(leader_id, window, cx)
 4206                    })?;
 4207                    Ok(())
 4208                }))
 4209            }
 4210            CollaboratorId::Agent => {
 4211                self.leader_updated(leader_id, window, cx)?;
 4212                Some(Task::ready(Ok(())))
 4213            }
 4214        }
 4215    }
 4216
 4217    pub fn follow_next_collaborator(
 4218        &mut self,
 4219        _: &FollowNextCollaborator,
 4220        window: &mut Window,
 4221        cx: &mut Context<Self>,
 4222    ) {
 4223        let collaborators = self.project.read(cx).collaborators();
 4224        let next_leader_id = if let Some(leader_id) = self.leader_for_pane(&self.active_pane) {
 4225            let mut collaborators = collaborators.keys().copied();
 4226            for peer_id in collaborators.by_ref() {
 4227                if CollaboratorId::PeerId(peer_id) == leader_id {
 4228                    break;
 4229                }
 4230            }
 4231            collaborators.next().map(CollaboratorId::PeerId)
 4232        } else if let Some(last_leader_id) =
 4233            self.last_leaders_by_pane.get(&self.active_pane.downgrade())
 4234        {
 4235            match last_leader_id {
 4236                CollaboratorId::PeerId(peer_id) => {
 4237                    if collaborators.contains_key(peer_id) {
 4238                        Some(*last_leader_id)
 4239                    } else {
 4240                        None
 4241                    }
 4242                }
 4243                CollaboratorId::Agent => Some(CollaboratorId::Agent),
 4244            }
 4245        } else {
 4246            None
 4247        };
 4248
 4249        let pane = self.active_pane.clone();
 4250        let Some(leader_id) = next_leader_id.or_else(|| {
 4251            Some(CollaboratorId::PeerId(
 4252                collaborators.keys().copied().next()?,
 4253            ))
 4254        }) else {
 4255            return;
 4256        };
 4257        if self.unfollow_in_pane(&pane, window, cx) == Some(leader_id) {
 4258            return;
 4259        }
 4260        if let Some(task) = self.start_following(leader_id, window, cx) {
 4261            task.detach_and_log_err(cx)
 4262        }
 4263    }
 4264
 4265    pub fn follow(
 4266        &mut self,
 4267        leader_id: impl Into<CollaboratorId>,
 4268        window: &mut Window,
 4269        cx: &mut Context<Self>,
 4270    ) {
 4271        let leader_id = leader_id.into();
 4272
 4273        if let CollaboratorId::PeerId(peer_id) = leader_id {
 4274            let Some(room) = ActiveCall::global(cx).read(cx).room() else {
 4275                return;
 4276            };
 4277            let room = room.read(cx);
 4278            let Some(remote_participant) = room.remote_participant_for_peer_id(peer_id) else {
 4279                return;
 4280            };
 4281
 4282            let project = self.project.read(cx);
 4283
 4284            let other_project_id = match remote_participant.location {
 4285                call::ParticipantLocation::External => None,
 4286                call::ParticipantLocation::UnsharedProject => None,
 4287                call::ParticipantLocation::SharedProject { project_id } => {
 4288                    if Some(project_id) == project.remote_id() {
 4289                        None
 4290                    } else {
 4291                        Some(project_id)
 4292                    }
 4293                }
 4294            };
 4295
 4296            // if they are active in another project, follow there.
 4297            if let Some(project_id) = other_project_id {
 4298                let app_state = self.app_state.clone();
 4299                crate::join_in_room_project(project_id, remote_participant.user.id, app_state, cx)
 4300                    .detach_and_log_err(cx);
 4301            }
 4302        }
 4303
 4304        // if you're already following, find the right pane and focus it.
 4305        if let Some(follower_state) = self.follower_states.get(&leader_id) {
 4306            window.focus(&follower_state.pane().focus_handle(cx));
 4307
 4308            return;
 4309        }
 4310
 4311        // Otherwise, follow.
 4312        if let Some(task) = self.start_following(leader_id, window, cx) {
 4313            task.detach_and_log_err(cx)
 4314        }
 4315    }
 4316
 4317    pub fn unfollow(
 4318        &mut self,
 4319        leader_id: impl Into<CollaboratorId>,
 4320        window: &mut Window,
 4321        cx: &mut Context<Self>,
 4322    ) -> Option<()> {
 4323        cx.notify();
 4324
 4325        let leader_id = leader_id.into();
 4326        let state = self.follower_states.remove(&leader_id)?;
 4327        for (_, item) in state.items_by_leader_view_id {
 4328            item.view.set_leader_id(None, window, cx);
 4329        }
 4330
 4331        if let CollaboratorId::PeerId(leader_peer_id) = leader_id {
 4332            let project_id = self.project.read(cx).remote_id();
 4333            let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4334            self.app_state
 4335                .client
 4336                .send(proto::Unfollow {
 4337                    room_id,
 4338                    project_id,
 4339                    leader_id: Some(leader_peer_id),
 4340                })
 4341                .log_err();
 4342        }
 4343
 4344        Some(())
 4345    }
 4346
 4347    pub fn is_being_followed(&self, id: impl Into<CollaboratorId>) -> bool {
 4348        self.follower_states.contains_key(&id.into())
 4349    }
 4350
 4351    fn active_item_path_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4352        cx.emit(Event::ActiveItemChanged);
 4353        let active_entry = self.active_project_path(cx);
 4354        self.project
 4355            .update(cx, |project, cx| project.set_active_path(active_entry, cx));
 4356
 4357        self.update_window_title(window, cx);
 4358    }
 4359
 4360    fn update_window_title(&mut self, window: &mut Window, cx: &mut App) {
 4361        let project = self.project().read(cx);
 4362        let mut title = String::new();
 4363
 4364        for (i, name) in project.worktree_root_names(cx).enumerate() {
 4365            if i > 0 {
 4366                title.push_str(", ");
 4367            }
 4368            title.push_str(name);
 4369        }
 4370
 4371        if title.is_empty() {
 4372            title = "empty project".to_string();
 4373        }
 4374
 4375        if let Some(path) = self.active_item(cx).and_then(|item| item.project_path(cx)) {
 4376            let filename = path
 4377                .path
 4378                .file_name()
 4379                .map(|s| s.to_string_lossy())
 4380                .or_else(|| {
 4381                    Some(Cow::Borrowed(
 4382                        project
 4383                            .worktree_for_id(path.worktree_id, cx)?
 4384                            .read(cx)
 4385                            .root_name(),
 4386                    ))
 4387                });
 4388
 4389            if let Some(filename) = filename {
 4390                title.push_str("");
 4391                title.push_str(filename.as_ref());
 4392            }
 4393        }
 4394
 4395        if project.is_via_collab() {
 4396            title.push_str("");
 4397        } else if project.is_shared() {
 4398            title.push_str("");
 4399        }
 4400
 4401        if let Some(last_title) = self.last_window_title.as_ref() {
 4402            if &title == last_title {
 4403                return;
 4404            }
 4405        }
 4406        window.set_window_title(&title);
 4407        self.last_window_title = Some(title);
 4408    }
 4409
 4410    fn update_window_edited(&mut self, window: &mut Window, cx: &mut App) {
 4411        let is_edited = !self.project.read(cx).is_disconnected(cx) && !self.dirty_items.is_empty();
 4412        if is_edited != self.window_edited {
 4413            self.window_edited = is_edited;
 4414            window.set_window_edited(self.window_edited)
 4415        }
 4416    }
 4417
 4418    fn update_item_dirty_state(
 4419        &mut self,
 4420        item: &dyn ItemHandle,
 4421        window: &mut Window,
 4422        cx: &mut App,
 4423    ) {
 4424        let is_dirty = item.is_dirty(cx);
 4425        let item_id = item.item_id();
 4426        let was_dirty = self.dirty_items.contains_key(&item_id);
 4427        if is_dirty == was_dirty {
 4428            return;
 4429        }
 4430        if was_dirty {
 4431            self.dirty_items.remove(&item_id);
 4432            self.update_window_edited(window, cx);
 4433            return;
 4434        }
 4435        if let Some(window_handle) = window.window_handle().downcast::<Self>() {
 4436            let s = item.on_release(
 4437                cx,
 4438                Box::new(move |cx| {
 4439                    window_handle
 4440                        .update(cx, |this, window, cx| {
 4441                            this.dirty_items.remove(&item_id);
 4442                            this.update_window_edited(window, cx)
 4443                        })
 4444                        .ok();
 4445                }),
 4446            );
 4447            self.dirty_items.insert(item_id, s);
 4448            self.update_window_edited(window, cx);
 4449        }
 4450    }
 4451
 4452    fn render_notifications(&self, _window: &mut Window, _cx: &mut Context<Self>) -> Option<Div> {
 4453        if self.notifications.is_empty() {
 4454            None
 4455        } else {
 4456            Some(
 4457                div()
 4458                    .absolute()
 4459                    .right_3()
 4460                    .bottom_3()
 4461                    .w_112()
 4462                    .h_full()
 4463                    .flex()
 4464                    .flex_col()
 4465                    .justify_end()
 4466                    .gap_2()
 4467                    .children(
 4468                        self.notifications
 4469                            .iter()
 4470                            .map(|(_, notification)| notification.clone().into_any()),
 4471                    ),
 4472            )
 4473        }
 4474    }
 4475
 4476    // RPC handlers
 4477
 4478    fn active_view_for_follower(
 4479        &self,
 4480        follower_project_id: Option<u64>,
 4481        window: &mut Window,
 4482        cx: &mut Context<Self>,
 4483    ) -> Option<proto::View> {
 4484        let (item, panel_id) = self.active_item_for_followers(window, cx);
 4485        let item = item?;
 4486        let leader_id = self
 4487            .pane_for(&*item)
 4488            .and_then(|pane| self.leader_for_pane(&pane));
 4489        let leader_peer_id = match leader_id {
 4490            Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 4491            Some(CollaboratorId::Agent) | None => None,
 4492        };
 4493
 4494        let item_handle = item.to_followable_item_handle(cx)?;
 4495        let id = item_handle.remote_id(&self.app_state.client, window, cx)?;
 4496        let variant = item_handle.to_state_proto(window, cx)?;
 4497
 4498        if item_handle.is_project_item(window, cx)
 4499            && (follower_project_id.is_none()
 4500                || follower_project_id != self.project.read(cx).remote_id())
 4501        {
 4502            return None;
 4503        }
 4504
 4505        Some(proto::View {
 4506            id: id.to_proto(),
 4507            leader_id: leader_peer_id,
 4508            variant: Some(variant),
 4509            panel_id: panel_id.map(|id| id as i32),
 4510        })
 4511    }
 4512
 4513    fn handle_follow(
 4514        &mut self,
 4515        follower_project_id: Option<u64>,
 4516        window: &mut Window,
 4517        cx: &mut Context<Self>,
 4518    ) -> proto::FollowResponse {
 4519        let active_view = self.active_view_for_follower(follower_project_id, window, cx);
 4520
 4521        cx.notify();
 4522        proto::FollowResponse {
 4523            // TODO: Remove after version 0.145.x stabilizes.
 4524            active_view_id: active_view.as_ref().and_then(|view| view.id.clone()),
 4525            views: active_view.iter().cloned().collect(),
 4526            active_view,
 4527        }
 4528    }
 4529
 4530    fn handle_update_followers(
 4531        &mut self,
 4532        leader_id: PeerId,
 4533        message: proto::UpdateFollowers,
 4534        _window: &mut Window,
 4535        _cx: &mut Context<Self>,
 4536    ) {
 4537        self.leader_updates_tx
 4538            .unbounded_send((leader_id, message))
 4539            .ok();
 4540    }
 4541
 4542    async fn process_leader_update(
 4543        this: &WeakEntity<Self>,
 4544        leader_id: PeerId,
 4545        update: proto::UpdateFollowers,
 4546        cx: &mut AsyncWindowContext,
 4547    ) -> Result<()> {
 4548        match update.variant.context("invalid update")? {
 4549            proto::update_followers::Variant::CreateView(view) => {
 4550                let view_id = ViewId::from_proto(view.id.clone().context("invalid view id")?)?;
 4551                let should_add_view = this.update(cx, |this, _| {
 4552                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 4553                        anyhow::Ok(!state.items_by_leader_view_id.contains_key(&view_id))
 4554                    } else {
 4555                        anyhow::Ok(false)
 4556                    }
 4557                })??;
 4558
 4559                if should_add_view {
 4560                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 4561                }
 4562            }
 4563            proto::update_followers::Variant::UpdateActiveView(update_active_view) => {
 4564                let should_add_view = this.update(cx, |this, _| {
 4565                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 4566                        state.active_view_id = update_active_view
 4567                            .view
 4568                            .as_ref()
 4569                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4570
 4571                        if state.active_view_id.is_some_and(|view_id| {
 4572                            !state.items_by_leader_view_id.contains_key(&view_id)
 4573                        }) {
 4574                            anyhow::Ok(true)
 4575                        } else {
 4576                            anyhow::Ok(false)
 4577                        }
 4578                    } else {
 4579                        anyhow::Ok(false)
 4580                    }
 4581                })??;
 4582
 4583                if should_add_view {
 4584                    if let Some(view) = update_active_view.view {
 4585                        Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 4586                    }
 4587                }
 4588            }
 4589            proto::update_followers::Variant::UpdateView(update_view) => {
 4590                let variant = update_view.variant.context("missing update view variant")?;
 4591                let id = update_view.id.context("missing update view id")?;
 4592                let mut tasks = Vec::new();
 4593                this.update_in(cx, |this, window, cx| {
 4594                    let project = this.project.clone();
 4595                    if let Some(state) = this.follower_states.get(&leader_id.into()) {
 4596                        let view_id = ViewId::from_proto(id.clone())?;
 4597                        if let Some(item) = state.items_by_leader_view_id.get(&view_id) {
 4598                            tasks.push(item.view.apply_update_proto(
 4599                                &project,
 4600                                variant.clone(),
 4601                                window,
 4602                                cx,
 4603                            ));
 4604                        }
 4605                    }
 4606                    anyhow::Ok(())
 4607                })??;
 4608                try_join_all(tasks).await.log_err();
 4609            }
 4610        }
 4611        this.update_in(cx, |this, window, cx| {
 4612            this.leader_updated(leader_id, window, cx)
 4613        })?;
 4614        Ok(())
 4615    }
 4616
 4617    async fn add_view_from_leader(
 4618        this: WeakEntity<Self>,
 4619        leader_id: PeerId,
 4620        view: &proto::View,
 4621        cx: &mut AsyncWindowContext,
 4622    ) -> Result<()> {
 4623        let this = this.upgrade().context("workspace dropped")?;
 4624
 4625        let Some(id) = view.id.clone() else {
 4626            anyhow::bail!("no id for view");
 4627        };
 4628        let id = ViewId::from_proto(id)?;
 4629        let panel_id = view.panel_id.and_then(proto::PanelId::from_i32);
 4630
 4631        let pane = this.update(cx, |this, _cx| {
 4632            let state = this
 4633                .follower_states
 4634                .get(&leader_id.into())
 4635                .context("stopped following")?;
 4636            anyhow::Ok(state.pane().clone())
 4637        })??;
 4638        let existing_item = pane.update_in(cx, |pane, window, cx| {
 4639            let client = this.read(cx).client().clone();
 4640            pane.items().find_map(|item| {
 4641                let item = item.to_followable_item_handle(cx)?;
 4642                if item.remote_id(&client, window, cx) == Some(id) {
 4643                    Some(item)
 4644                } else {
 4645                    None
 4646                }
 4647            })
 4648        })?;
 4649        let item = if let Some(existing_item) = existing_item {
 4650            existing_item
 4651        } else {
 4652            let variant = view.variant.clone();
 4653            anyhow::ensure!(variant.is_some(), "missing view variant");
 4654
 4655            let task = cx.update(|window, cx| {
 4656                FollowableViewRegistry::from_state_proto(this.clone(), id, variant, window, cx)
 4657            })?;
 4658
 4659            let Some(task) = task else {
 4660                anyhow::bail!(
 4661                    "failed to construct view from leader (maybe from a different version of zed?)"
 4662                );
 4663            };
 4664
 4665            let mut new_item = task.await?;
 4666            pane.update_in(cx, |pane, window, cx| {
 4667                let mut item_to_remove = None;
 4668                for (ix, item) in pane.items().enumerate() {
 4669                    if let Some(item) = item.to_followable_item_handle(cx) {
 4670                        match new_item.dedup(item.as_ref(), window, cx) {
 4671                            Some(item::Dedup::KeepExisting) => {
 4672                                new_item =
 4673                                    item.boxed_clone().to_followable_item_handle(cx).unwrap();
 4674                                break;
 4675                            }
 4676                            Some(item::Dedup::ReplaceExisting) => {
 4677                                item_to_remove = Some((ix, item.item_id()));
 4678                                break;
 4679                            }
 4680                            None => {}
 4681                        }
 4682                    }
 4683                }
 4684
 4685                if let Some((ix, id)) = item_to_remove {
 4686                    pane.remove_item(id, false, false, window, cx);
 4687                    pane.add_item(new_item.boxed_clone(), false, false, Some(ix), window, cx);
 4688                }
 4689            })?;
 4690
 4691            new_item
 4692        };
 4693
 4694        this.update_in(cx, |this, window, cx| {
 4695            let state = this.follower_states.get_mut(&leader_id.into())?;
 4696            item.set_leader_id(Some(leader_id.into()), window, cx);
 4697            state.items_by_leader_view_id.insert(
 4698                id,
 4699                FollowerView {
 4700                    view: item,
 4701                    location: panel_id,
 4702                },
 4703            );
 4704
 4705            Some(())
 4706        })?;
 4707
 4708        Ok(())
 4709    }
 4710
 4711    fn handle_agent_location_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4712        let Some(follower_state) = self.follower_states.get_mut(&CollaboratorId::Agent) else {
 4713            return;
 4714        };
 4715
 4716        if let Some(agent_location) = self.project.read(cx).agent_location() {
 4717            let buffer_entity_id = agent_location.buffer.entity_id();
 4718            let view_id = ViewId {
 4719                creator: CollaboratorId::Agent,
 4720                id: buffer_entity_id.as_u64(),
 4721            };
 4722            follower_state.active_view_id = Some(view_id);
 4723
 4724            let item = match follower_state.items_by_leader_view_id.entry(view_id) {
 4725                hash_map::Entry::Occupied(entry) => Some(entry.into_mut()),
 4726                hash_map::Entry::Vacant(entry) => {
 4727                    let existing_view =
 4728                        follower_state
 4729                            .center_pane
 4730                            .read(cx)
 4731                            .items()
 4732                            .find_map(|item| {
 4733                                let item = item.to_followable_item_handle(cx)?;
 4734                                if item.is_singleton(cx)
 4735                                    && item.project_item_model_ids(cx).as_slice()
 4736                                        == [buffer_entity_id]
 4737                                {
 4738                                    Some(item)
 4739                                } else {
 4740                                    None
 4741                                }
 4742                            });
 4743                    let view = existing_view.or_else(|| {
 4744                        agent_location.buffer.upgrade().and_then(|buffer| {
 4745                            cx.update_default_global(|registry: &mut ProjectItemRegistry, cx| {
 4746                                registry.build_item(buffer, self.project.clone(), None, window, cx)
 4747                            })?
 4748                            .to_followable_item_handle(cx)
 4749                        })
 4750                    });
 4751
 4752                    if let Some(view) = view {
 4753                        Some(entry.insert(FollowerView {
 4754                            view,
 4755                            location: None,
 4756                        }))
 4757                    } else {
 4758                        None
 4759                    }
 4760                }
 4761            };
 4762
 4763            if let Some(item) = item {
 4764                item.view
 4765                    .set_leader_id(Some(CollaboratorId::Agent), window, cx);
 4766                item.view
 4767                    .update_agent_location(agent_location.position, window, cx);
 4768            }
 4769        } else {
 4770            follower_state.active_view_id = None;
 4771        }
 4772
 4773        self.leader_updated(CollaboratorId::Agent, window, cx);
 4774    }
 4775
 4776    pub fn update_active_view_for_followers(&mut self, window: &mut Window, cx: &mut App) {
 4777        let mut is_project_item = true;
 4778        let mut update = proto::UpdateActiveView::default();
 4779        if window.is_window_active() {
 4780            let (active_item, panel_id) = self.active_item_for_followers(window, cx);
 4781
 4782            if let Some(item) = active_item {
 4783                if item.item_focus_handle(cx).contains_focused(window, cx) {
 4784                    let leader_id = self
 4785                        .pane_for(&*item)
 4786                        .and_then(|pane| self.leader_for_pane(&pane));
 4787                    let leader_peer_id = match leader_id {
 4788                        Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 4789                        Some(CollaboratorId::Agent) | None => None,
 4790                    };
 4791
 4792                    if let Some(item) = item.to_followable_item_handle(cx) {
 4793                        let id = item
 4794                            .remote_id(&self.app_state.client, window, cx)
 4795                            .map(|id| id.to_proto());
 4796
 4797                        if let Some(id) = id {
 4798                            if let Some(variant) = item.to_state_proto(window, cx) {
 4799                                let view = Some(proto::View {
 4800                                    id: id.clone(),
 4801                                    leader_id: leader_peer_id,
 4802                                    variant: Some(variant),
 4803                                    panel_id: panel_id.map(|id| id as i32),
 4804                                });
 4805
 4806                                is_project_item = item.is_project_item(window, cx);
 4807                                update = proto::UpdateActiveView {
 4808                                    view,
 4809                                    // TODO: Remove after version 0.145.x stabilizes.
 4810                                    id,
 4811                                    leader_id: leader_peer_id,
 4812                                };
 4813                            }
 4814                        };
 4815                    }
 4816                }
 4817            }
 4818        }
 4819
 4820        let active_view_id = update.view.as_ref().and_then(|view| view.id.as_ref());
 4821        if active_view_id != self.last_active_view_id.as_ref() {
 4822            self.last_active_view_id = active_view_id.cloned();
 4823            self.update_followers(
 4824                is_project_item,
 4825                proto::update_followers::Variant::UpdateActiveView(update),
 4826                window,
 4827                cx,
 4828            );
 4829        }
 4830    }
 4831
 4832    fn active_item_for_followers(
 4833        &self,
 4834        window: &mut Window,
 4835        cx: &mut App,
 4836    ) -> (Option<Box<dyn ItemHandle>>, Option<proto::PanelId>) {
 4837        let mut active_item = None;
 4838        let mut panel_id = None;
 4839        for dock in self.all_docks() {
 4840            if dock.focus_handle(cx).contains_focused(window, cx) {
 4841                if let Some(panel) = dock.read(cx).active_panel() {
 4842                    if let Some(pane) = panel.pane(cx) {
 4843                        if let Some(item) = pane.read(cx).active_item() {
 4844                            active_item = Some(item);
 4845                            panel_id = panel.remote_id();
 4846                            break;
 4847                        }
 4848                    }
 4849                }
 4850            }
 4851        }
 4852
 4853        if active_item.is_none() {
 4854            active_item = self.active_pane().read(cx).active_item();
 4855        }
 4856        (active_item, panel_id)
 4857    }
 4858
 4859    fn update_followers(
 4860        &self,
 4861        project_only: bool,
 4862        update: proto::update_followers::Variant,
 4863        _: &mut Window,
 4864        cx: &mut App,
 4865    ) -> Option<()> {
 4866        // If this update only applies to for followers in the current project,
 4867        // then skip it unless this project is shared. If it applies to all
 4868        // followers, regardless of project, then set `project_id` to none,
 4869        // indicating that it goes to all followers.
 4870        let project_id = if project_only {
 4871            Some(self.project.read(cx).remote_id()?)
 4872        } else {
 4873            None
 4874        };
 4875        self.app_state().workspace_store.update(cx, |store, cx| {
 4876            store.update_followers(project_id, update, cx)
 4877        })
 4878    }
 4879
 4880    pub fn leader_for_pane(&self, pane: &Entity<Pane>) -> Option<CollaboratorId> {
 4881        self.follower_states.iter().find_map(|(leader_id, state)| {
 4882            if state.center_pane == *pane || state.dock_pane.as_ref() == Some(pane) {
 4883                Some(*leader_id)
 4884            } else {
 4885                None
 4886            }
 4887        })
 4888    }
 4889
 4890    fn leader_updated(
 4891        &mut self,
 4892        leader_id: impl Into<CollaboratorId>,
 4893        window: &mut Window,
 4894        cx: &mut Context<Self>,
 4895    ) -> Option<Box<dyn ItemHandle>> {
 4896        cx.notify();
 4897
 4898        let leader_id = leader_id.into();
 4899        let (panel_id, item) = match leader_id {
 4900            CollaboratorId::PeerId(peer_id) => self.active_item_for_peer(peer_id, window, cx)?,
 4901            CollaboratorId::Agent => (None, self.active_item_for_agent()?),
 4902        };
 4903
 4904        let state = self.follower_states.get(&leader_id)?;
 4905        let mut transfer_focus = state.center_pane.read(cx).has_focus(window, cx);
 4906        let pane;
 4907        if let Some(panel_id) = panel_id {
 4908            pane = self
 4909                .activate_panel_for_proto_id(panel_id, window, cx)?
 4910                .pane(cx)?;
 4911            let state = self.follower_states.get_mut(&leader_id)?;
 4912            state.dock_pane = Some(pane.clone());
 4913        } else {
 4914            pane = state.center_pane.clone();
 4915            let state = self.follower_states.get_mut(&leader_id)?;
 4916            if let Some(dock_pane) = state.dock_pane.take() {
 4917                transfer_focus |= dock_pane.focus_handle(cx).contains_focused(window, cx);
 4918            }
 4919        }
 4920
 4921        pane.update(cx, |pane, cx| {
 4922            let focus_active_item = pane.has_focus(window, cx) || transfer_focus;
 4923            if let Some(index) = pane.index_for_item(item.as_ref()) {
 4924                pane.activate_item(index, false, false, window, cx);
 4925            } else {
 4926                pane.add_item(item.boxed_clone(), false, false, None, window, cx)
 4927            }
 4928
 4929            if focus_active_item {
 4930                pane.focus_active_item(window, cx)
 4931            }
 4932        });
 4933
 4934        Some(item)
 4935    }
 4936
 4937    fn active_item_for_agent(&self) -> Option<Box<dyn ItemHandle>> {
 4938        let state = self.follower_states.get(&CollaboratorId::Agent)?;
 4939        let active_view_id = state.active_view_id?;
 4940        Some(
 4941            state
 4942                .items_by_leader_view_id
 4943                .get(&active_view_id)?
 4944                .view
 4945                .boxed_clone(),
 4946        )
 4947    }
 4948
 4949    fn active_item_for_peer(
 4950        &self,
 4951        peer_id: PeerId,
 4952        window: &mut Window,
 4953        cx: &mut Context<Self>,
 4954    ) -> Option<(Option<PanelId>, Box<dyn ItemHandle>)> {
 4955        let call = self.active_call()?;
 4956        let room = call.read(cx).room()?.read(cx);
 4957        let participant = room.remote_participant_for_peer_id(peer_id)?;
 4958        let leader_in_this_app;
 4959        let leader_in_this_project;
 4960        match participant.location {
 4961            call::ParticipantLocation::SharedProject { project_id } => {
 4962                leader_in_this_app = true;
 4963                leader_in_this_project = Some(project_id) == self.project.read(cx).remote_id();
 4964            }
 4965            call::ParticipantLocation::UnsharedProject => {
 4966                leader_in_this_app = true;
 4967                leader_in_this_project = false;
 4968            }
 4969            call::ParticipantLocation::External => {
 4970                leader_in_this_app = false;
 4971                leader_in_this_project = false;
 4972            }
 4973        };
 4974        let state = self.follower_states.get(&peer_id.into())?;
 4975        let mut item_to_activate = None;
 4976        if let (Some(active_view_id), true) = (state.active_view_id, leader_in_this_app) {
 4977            if let Some(item) = state.items_by_leader_view_id.get(&active_view_id) {
 4978                if leader_in_this_project || !item.view.is_project_item(window, cx) {
 4979                    item_to_activate = Some((item.location, item.view.boxed_clone()));
 4980                }
 4981            }
 4982        } else if let Some(shared_screen) =
 4983            self.shared_screen_for_peer(peer_id, &state.center_pane, window, cx)
 4984        {
 4985            item_to_activate = Some((None, Box::new(shared_screen)));
 4986        }
 4987        item_to_activate
 4988    }
 4989
 4990    fn shared_screen_for_peer(
 4991        &self,
 4992        peer_id: PeerId,
 4993        pane: &Entity<Pane>,
 4994        window: &mut Window,
 4995        cx: &mut App,
 4996    ) -> Option<Entity<SharedScreen>> {
 4997        let call = self.active_call()?;
 4998        let room = call.read(cx).room()?.clone();
 4999        let participant = room.read(cx).remote_participant_for_peer_id(peer_id)?;
 5000        let track = participant.video_tracks.values().next()?.clone();
 5001        let user = participant.user.clone();
 5002
 5003        for item in pane.read(cx).items_of_type::<SharedScreen>() {
 5004            if item.read(cx).peer_id == peer_id {
 5005                return Some(item);
 5006            }
 5007        }
 5008
 5009        Some(cx.new(|cx| SharedScreen::new(track, peer_id, user.clone(), room.clone(), window, cx)))
 5010    }
 5011
 5012    pub fn on_window_activation_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5013        if window.is_window_active() {
 5014            self.update_active_view_for_followers(window, cx);
 5015
 5016            if let Some(database_id) = self.database_id {
 5017                cx.background_spawn(persistence::DB.update_timestamp(database_id))
 5018                    .detach();
 5019            }
 5020        } else {
 5021            for pane in &self.panes {
 5022                pane.update(cx, |pane, cx| {
 5023                    if let Some(item) = pane.active_item() {
 5024                        item.workspace_deactivated(window, cx);
 5025                    }
 5026                    for item in pane.items() {
 5027                        if matches!(
 5028                            item.workspace_settings(cx).autosave,
 5029                            AutosaveSetting::OnWindowChange | AutosaveSetting::OnFocusChange
 5030                        ) {
 5031                            Pane::autosave_item(item.as_ref(), self.project.clone(), window, cx)
 5032                                .detach_and_log_err(cx);
 5033                        }
 5034                    }
 5035                });
 5036            }
 5037        }
 5038    }
 5039
 5040    pub fn active_call(&self) -> Option<&Entity<ActiveCall>> {
 5041        self.active_call.as_ref().map(|(call, _)| call)
 5042    }
 5043
 5044    fn on_active_call_event(
 5045        &mut self,
 5046        _: &Entity<ActiveCall>,
 5047        event: &call::room::Event,
 5048        window: &mut Window,
 5049        cx: &mut Context<Self>,
 5050    ) {
 5051        match event {
 5052            call::room::Event::ParticipantLocationChanged { participant_id }
 5053            | call::room::Event::RemoteVideoTracksChanged { participant_id } => {
 5054                self.leader_updated(participant_id, window, cx);
 5055            }
 5056            _ => {}
 5057        }
 5058    }
 5059
 5060    pub fn database_id(&self) -> Option<WorkspaceId> {
 5061        self.database_id
 5062    }
 5063
 5064    pub fn session_id(&self) -> Option<String> {
 5065        self.session_id.clone()
 5066    }
 5067
 5068    fn local_paths(&self, cx: &App) -> Option<Vec<Arc<Path>>> {
 5069        let project = self.project().read(cx);
 5070
 5071        if project.is_local() {
 5072            Some(
 5073                project
 5074                    .visible_worktrees(cx)
 5075                    .map(|worktree| worktree.read(cx).abs_path())
 5076                    .collect::<Vec<_>>(),
 5077            )
 5078        } else {
 5079            None
 5080        }
 5081    }
 5082
 5083    fn update_ssh_paths(&mut self, cx: &App) {
 5084        let project = self.project().read(cx);
 5085        if !project.is_local() {
 5086            let paths: Vec<String> = project
 5087                .visible_worktrees(cx)
 5088                .map(|worktree| worktree.read(cx).abs_path().to_string_lossy().to_string())
 5089                .collect();
 5090            if let Some(ssh_project) = &mut self.serialized_ssh_project {
 5091                ssh_project.paths = paths;
 5092            }
 5093        }
 5094    }
 5095
 5096    fn serialize_ssh_paths(&mut self, window: &mut Window, cx: &mut Context<Workspace>) {
 5097        if self._schedule_serialize_ssh_paths.is_none() {
 5098            self._schedule_serialize_ssh_paths =
 5099                Some(cx.spawn_in(window, async move |this, cx| {
 5100                    cx.background_executor()
 5101                        .timer(SERIALIZATION_THROTTLE_TIME)
 5102                        .await;
 5103                    this.update_in(cx, |this, window, cx| {
 5104                        let task = if let Some(ssh_project) = &this.serialized_ssh_project {
 5105                            let ssh_project_id = ssh_project.id;
 5106                            let ssh_project_paths = ssh_project.paths.clone();
 5107                            window.spawn(cx, async move |_| {
 5108                                persistence::DB
 5109                                    .update_ssh_project_paths(ssh_project_id, ssh_project_paths)
 5110                                    .await
 5111                            })
 5112                        } else {
 5113                            Task::ready(Err(anyhow::anyhow!("No SSH project to serialize")))
 5114                        };
 5115                        task.detach();
 5116                        this._schedule_serialize_ssh_paths.take();
 5117                    })
 5118                    .log_err();
 5119                }));
 5120        }
 5121    }
 5122
 5123    fn remove_panes(&mut self, member: Member, window: &mut Window, cx: &mut Context<Workspace>) {
 5124        match member {
 5125            Member::Axis(PaneAxis { members, .. }) => {
 5126                for child in members.iter() {
 5127                    self.remove_panes(child.clone(), window, cx)
 5128                }
 5129            }
 5130            Member::Pane(pane) => {
 5131                self.force_remove_pane(&pane, &None, window, cx);
 5132            }
 5133        }
 5134    }
 5135
 5136    fn remove_from_session(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 5137        self.session_id.take();
 5138        self.serialize_workspace_internal(window, cx)
 5139    }
 5140
 5141    fn force_remove_pane(
 5142        &mut self,
 5143        pane: &Entity<Pane>,
 5144        focus_on: &Option<Entity<Pane>>,
 5145        window: &mut Window,
 5146        cx: &mut Context<Workspace>,
 5147    ) {
 5148        self.panes.retain(|p| p != pane);
 5149        if let Some(focus_on) = focus_on {
 5150            focus_on.update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)));
 5151        } else {
 5152            if self.active_pane() == pane {
 5153                self.panes
 5154                    .last()
 5155                    .unwrap()
 5156                    .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)));
 5157            }
 5158        }
 5159        if self.last_active_center_pane == Some(pane.downgrade()) {
 5160            self.last_active_center_pane = None;
 5161        }
 5162        cx.notify();
 5163    }
 5164
 5165    fn serialize_workspace(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5166        if self._schedule_serialize_workspace.is_none() {
 5167            self._schedule_serialize_workspace =
 5168                Some(cx.spawn_in(window, async move |this, cx| {
 5169                    cx.background_executor()
 5170                        .timer(SERIALIZATION_THROTTLE_TIME)
 5171                        .await;
 5172                    this.update_in(cx, |this, window, cx| {
 5173                        this.serialize_workspace_internal(window, cx).detach();
 5174                        this._schedule_serialize_workspace.take();
 5175                    })
 5176                    .log_err();
 5177                }));
 5178        }
 5179    }
 5180
 5181    fn serialize_workspace_internal(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 5182        let Some(database_id) = self.database_id() else {
 5183            return Task::ready(());
 5184        };
 5185
 5186        fn serialize_pane_handle(
 5187            pane_handle: &Entity<Pane>,
 5188            window: &mut Window,
 5189            cx: &mut App,
 5190        ) -> SerializedPane {
 5191            let (items, active, pinned_count) = {
 5192                let pane = pane_handle.read(cx);
 5193                let active_item_id = pane.active_item().map(|item| item.item_id());
 5194                (
 5195                    pane.items()
 5196                        .filter_map(|handle| {
 5197                            let handle = handle.to_serializable_item_handle(cx)?;
 5198
 5199                            Some(SerializedItem {
 5200                                kind: Arc::from(handle.serialized_item_kind()),
 5201                                item_id: handle.item_id().as_u64(),
 5202                                active: Some(handle.item_id()) == active_item_id,
 5203                                preview: pane.is_active_preview_item(handle.item_id()),
 5204                            })
 5205                        })
 5206                        .collect::<Vec<_>>(),
 5207                    pane.has_focus(window, cx),
 5208                    pane.pinned_count(),
 5209                )
 5210            };
 5211
 5212            SerializedPane::new(items, active, pinned_count)
 5213        }
 5214
 5215        fn build_serialized_pane_group(
 5216            pane_group: &Member,
 5217            window: &mut Window,
 5218            cx: &mut App,
 5219        ) -> SerializedPaneGroup {
 5220            match pane_group {
 5221                Member::Axis(PaneAxis {
 5222                    axis,
 5223                    members,
 5224                    flexes,
 5225                    bounding_boxes: _,
 5226                }) => SerializedPaneGroup::Group {
 5227                    axis: SerializedAxis(*axis),
 5228                    children: members
 5229                        .iter()
 5230                        .map(|member| build_serialized_pane_group(member, window, cx))
 5231                        .collect::<Vec<_>>(),
 5232                    flexes: Some(flexes.lock().clone()),
 5233                },
 5234                Member::Pane(pane_handle) => {
 5235                    SerializedPaneGroup::Pane(serialize_pane_handle(pane_handle, window, cx))
 5236                }
 5237            }
 5238        }
 5239
 5240        fn build_serialized_docks(
 5241            this: &Workspace,
 5242            window: &mut Window,
 5243            cx: &mut App,
 5244        ) -> DockStructure {
 5245            let left_dock = this.left_dock.read(cx);
 5246            let left_visible = left_dock.is_open();
 5247            let left_active_panel = left_dock
 5248                .active_panel()
 5249                .map(|panel| panel.persistent_name().to_string());
 5250            let left_dock_zoom = left_dock
 5251                .active_panel()
 5252                .map(|panel| panel.is_zoomed(window, cx))
 5253                .unwrap_or(false);
 5254
 5255            let right_dock = this.right_dock.read(cx);
 5256            let right_visible = right_dock.is_open();
 5257            let right_active_panel = right_dock
 5258                .active_panel()
 5259                .map(|panel| panel.persistent_name().to_string());
 5260            let right_dock_zoom = right_dock
 5261                .active_panel()
 5262                .map(|panel| panel.is_zoomed(window, cx))
 5263                .unwrap_or(false);
 5264
 5265            let bottom_dock = this.bottom_dock.read(cx);
 5266            let bottom_visible = bottom_dock.is_open();
 5267            let bottom_active_panel = bottom_dock
 5268                .active_panel()
 5269                .map(|panel| panel.persistent_name().to_string());
 5270            let bottom_dock_zoom = bottom_dock
 5271                .active_panel()
 5272                .map(|panel| panel.is_zoomed(window, cx))
 5273                .unwrap_or(false);
 5274
 5275            DockStructure {
 5276                left: DockData {
 5277                    visible: left_visible,
 5278                    active_panel: left_active_panel,
 5279                    zoom: left_dock_zoom,
 5280                },
 5281                right: DockData {
 5282                    visible: right_visible,
 5283                    active_panel: right_active_panel,
 5284                    zoom: right_dock_zoom,
 5285                },
 5286                bottom: DockData {
 5287                    visible: bottom_visible,
 5288                    active_panel: bottom_active_panel,
 5289                    zoom: bottom_dock_zoom,
 5290                },
 5291            }
 5292        }
 5293
 5294        match self.serialize_workspace_location(cx) {
 5295            WorkspaceLocation::Location(location) => {
 5296                let breakpoints = self.project.update(cx, |project, cx| {
 5297                    project
 5298                        .breakpoint_store()
 5299                        .read(cx)
 5300                        .all_source_breakpoints(cx)
 5301                });
 5302
 5303                let center_group = build_serialized_pane_group(&self.center.root, window, cx);
 5304                let docks = build_serialized_docks(self, window, cx);
 5305                let window_bounds = Some(SerializedWindowBounds(window.window_bounds()));
 5306                let serialized_workspace = SerializedWorkspace {
 5307                    id: database_id,
 5308                    location,
 5309                    center_group,
 5310                    window_bounds,
 5311                    display: Default::default(),
 5312                    docks,
 5313                    centered_layout: self.centered_layout,
 5314                    session_id: self.session_id.clone(),
 5315                    breakpoints,
 5316                    window_id: Some(window.window_handle().window_id().as_u64()),
 5317                };
 5318
 5319                window.spawn(cx, async move |_| {
 5320                    persistence::DB.save_workspace(serialized_workspace).await;
 5321                })
 5322            }
 5323            WorkspaceLocation::DetachFromSession => window.spawn(cx, async move |_| {
 5324                persistence::DB
 5325                    .set_session_id(database_id, None)
 5326                    .await
 5327                    .log_err();
 5328            }),
 5329            WorkspaceLocation::None => Task::ready(()),
 5330        }
 5331    }
 5332
 5333    fn serialize_workspace_location(&self, cx: &App) -> WorkspaceLocation {
 5334        if let Some(ssh_project) = &self.serialized_ssh_project {
 5335            WorkspaceLocation::Location(SerializedWorkspaceLocation::Ssh(ssh_project.clone()))
 5336        } else if let Some(local_paths) = self.local_paths(cx) {
 5337            if !local_paths.is_empty() {
 5338                WorkspaceLocation::Location(SerializedWorkspaceLocation::from_local_paths(
 5339                    local_paths,
 5340                ))
 5341            } else {
 5342                WorkspaceLocation::DetachFromSession
 5343            }
 5344        } else {
 5345            WorkspaceLocation::None
 5346        }
 5347    }
 5348
 5349    fn update_history(&self, cx: &mut App) {
 5350        let Some(id) = self.database_id() else {
 5351            return;
 5352        };
 5353        let location = match self.serialize_workspace_location(cx) {
 5354            WorkspaceLocation::Location(location) => location,
 5355            _ => return,
 5356        };
 5357        if let Some(manager) = HistoryManager::global(cx) {
 5358            manager.update(cx, |this, cx| {
 5359                this.update_history(id, HistoryManagerEntry::new(id, &location), cx);
 5360            });
 5361        }
 5362    }
 5363
 5364    async fn serialize_items(
 5365        this: &WeakEntity<Self>,
 5366        items_rx: UnboundedReceiver<Box<dyn SerializableItemHandle>>,
 5367        cx: &mut AsyncWindowContext,
 5368    ) -> Result<()> {
 5369        const CHUNK_SIZE: usize = 200;
 5370
 5371        let mut serializable_items = items_rx.ready_chunks(CHUNK_SIZE);
 5372
 5373        while let Some(items_received) = serializable_items.next().await {
 5374            let unique_items =
 5375                items_received
 5376                    .into_iter()
 5377                    .fold(HashMap::default(), |mut acc, item| {
 5378                        acc.entry(item.item_id()).or_insert(item);
 5379                        acc
 5380                    });
 5381
 5382            // We use into_iter() here so that the references to the items are moved into
 5383            // the tasks and not kept alive while we're sleeping.
 5384            for (_, item) in unique_items.into_iter() {
 5385                if let Ok(Some(task)) = this.update_in(cx, |workspace, window, cx| {
 5386                    item.serialize(workspace, false, window, cx)
 5387                }) {
 5388                    cx.background_spawn(async move { task.await.log_err() })
 5389                        .detach();
 5390                }
 5391            }
 5392
 5393            cx.background_executor()
 5394                .timer(SERIALIZATION_THROTTLE_TIME)
 5395                .await;
 5396        }
 5397
 5398        Ok(())
 5399    }
 5400
 5401    pub(crate) fn enqueue_item_serialization(
 5402        &mut self,
 5403        item: Box<dyn SerializableItemHandle>,
 5404    ) -> Result<()> {
 5405        self.serializable_items_tx
 5406            .unbounded_send(item)
 5407            .map_err(|err| anyhow!("failed to send serializable item over channel: {err}"))
 5408    }
 5409
 5410    pub(crate) fn load_workspace(
 5411        serialized_workspace: SerializedWorkspace,
 5412        paths_to_open: Vec<Option<ProjectPath>>,
 5413        window: &mut Window,
 5414        cx: &mut Context<Workspace>,
 5415    ) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 5416        cx.spawn_in(window, async move |workspace, cx| {
 5417            let project = workspace.read_with(cx, |workspace, _| workspace.project().clone())?;
 5418
 5419            let mut center_group = None;
 5420            let mut center_items = None;
 5421
 5422            // Traverse the splits tree and add to things
 5423            if let Some((group, active_pane, items)) = serialized_workspace
 5424                .center_group
 5425                .deserialize(&project, serialized_workspace.id, workspace.clone(), cx)
 5426                .await
 5427            {
 5428                center_items = Some(items);
 5429                center_group = Some((group, active_pane))
 5430            }
 5431
 5432            let mut items_by_project_path = HashMap::default();
 5433            let mut item_ids_by_kind = HashMap::default();
 5434            let mut all_deserialized_items = Vec::default();
 5435            cx.update(|_, cx| {
 5436                for item in center_items.unwrap_or_default().into_iter().flatten() {
 5437                    if let Some(serializable_item_handle) = item.to_serializable_item_handle(cx) {
 5438                        item_ids_by_kind
 5439                            .entry(serializable_item_handle.serialized_item_kind())
 5440                            .or_insert(Vec::new())
 5441                            .push(item.item_id().as_u64() as ItemId);
 5442                    }
 5443
 5444                    if let Some(project_path) = item.project_path(cx) {
 5445                        items_by_project_path.insert(project_path, item.clone());
 5446                    }
 5447                    all_deserialized_items.push(item);
 5448                }
 5449            })?;
 5450
 5451            let opened_items = paths_to_open
 5452                .into_iter()
 5453                .map(|path_to_open| {
 5454                    path_to_open
 5455                        .and_then(|path_to_open| items_by_project_path.remove(&path_to_open))
 5456                })
 5457                .collect::<Vec<_>>();
 5458
 5459            // Remove old panes from workspace panes list
 5460            workspace.update_in(cx, |workspace, window, cx| {
 5461                if let Some((center_group, active_pane)) = center_group {
 5462                    workspace.remove_panes(workspace.center.root.clone(), window, cx);
 5463
 5464                    // Swap workspace center group
 5465                    workspace.center = PaneGroup::with_root(center_group);
 5466                    if let Some(active_pane) = active_pane {
 5467                        workspace.set_active_pane(&active_pane, window, cx);
 5468                        cx.focus_self(window);
 5469                    } else {
 5470                        workspace.set_active_pane(&workspace.center.first_pane(), window, cx);
 5471                    }
 5472                }
 5473
 5474                let docks = serialized_workspace.docks;
 5475
 5476                for (dock, serialized_dock) in [
 5477                    (&mut workspace.right_dock, docks.right),
 5478                    (&mut workspace.left_dock, docks.left),
 5479                    (&mut workspace.bottom_dock, docks.bottom),
 5480                ]
 5481                .iter_mut()
 5482                {
 5483                    dock.update(cx, |dock, cx| {
 5484                        dock.serialized_dock = Some(serialized_dock.clone());
 5485                        dock.restore_state(window, cx);
 5486                    });
 5487                }
 5488
 5489                cx.notify();
 5490            })?;
 5491
 5492            let _ = project
 5493                .update(cx, |project, cx| {
 5494                    project
 5495                        .breakpoint_store()
 5496                        .update(cx, |breakpoint_store, cx| {
 5497                            breakpoint_store
 5498                                .with_serialized_breakpoints(serialized_workspace.breakpoints, cx)
 5499                        })
 5500                })?
 5501                .await;
 5502
 5503            // Clean up all the items that have _not_ been loaded. Our ItemIds aren't stable. That means
 5504            // after loading the items, we might have different items and in order to avoid
 5505            // the database filling up, we delete items that haven't been loaded now.
 5506            //
 5507            // The items that have been loaded, have been saved after they've been added to the workspace.
 5508            let clean_up_tasks = workspace.update_in(cx, |_, window, cx| {
 5509                item_ids_by_kind
 5510                    .into_iter()
 5511                    .map(|(item_kind, loaded_items)| {
 5512                        SerializableItemRegistry::cleanup(
 5513                            item_kind,
 5514                            serialized_workspace.id,
 5515                            loaded_items,
 5516                            window,
 5517                            cx,
 5518                        )
 5519                        .log_err()
 5520                    })
 5521                    .collect::<Vec<_>>()
 5522            })?;
 5523
 5524            futures::future::join_all(clean_up_tasks).await;
 5525
 5526            workspace
 5527                .update_in(cx, |workspace, window, cx| {
 5528                    // Serialize ourself to make sure our timestamps and any pane / item changes are replicated
 5529                    workspace.serialize_workspace_internal(window, cx).detach();
 5530
 5531                    // Ensure that we mark the window as edited if we did load dirty items
 5532                    workspace.update_window_edited(window, cx);
 5533                })
 5534                .ok();
 5535
 5536            Ok(opened_items)
 5537        })
 5538    }
 5539
 5540    fn actions(&self, div: Div, window: &mut Window, cx: &mut Context<Self>) -> Div {
 5541        self.add_workspace_actions_listeners(div, window, cx)
 5542            .on_action(cx.listener(Self::close_inactive_items_and_panes))
 5543            .on_action(cx.listener(Self::close_all_items_and_panes))
 5544            .on_action(cx.listener(Self::save_all))
 5545            .on_action(cx.listener(Self::send_keystrokes))
 5546            .on_action(cx.listener(Self::add_folder_to_project))
 5547            .on_action(cx.listener(Self::follow_next_collaborator))
 5548            .on_action(cx.listener(Self::close_window))
 5549            .on_action(cx.listener(Self::activate_pane_at_index))
 5550            .on_action(cx.listener(Self::move_item_to_pane_at_index))
 5551            .on_action(cx.listener(Self::move_focused_panel_to_next_position))
 5552            .on_action(cx.listener(Self::toggle_edit_predictions_all_files))
 5553            .on_action(cx.listener(|workspace, _: &Unfollow, window, cx| {
 5554                let pane = workspace.active_pane().clone();
 5555                workspace.unfollow_in_pane(&pane, window, cx);
 5556            }))
 5557            .on_action(cx.listener(|workspace, action: &Save, window, cx| {
 5558                workspace
 5559                    .save_active_item(action.save_intent.unwrap_or(SaveIntent::Save), window, cx)
 5560                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5561            }))
 5562            .on_action(cx.listener(|workspace, _: &SaveWithoutFormat, window, cx| {
 5563                workspace
 5564                    .save_active_item(SaveIntent::SaveWithoutFormat, window, cx)
 5565                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5566            }))
 5567            .on_action(cx.listener(|workspace, _: &SaveAs, window, cx| {
 5568                workspace
 5569                    .save_active_item(SaveIntent::SaveAs, window, cx)
 5570                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5571            }))
 5572            .on_action(
 5573                cx.listener(|workspace, _: &ActivatePreviousPane, window, cx| {
 5574                    workspace.activate_previous_pane(window, cx)
 5575                }),
 5576            )
 5577            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 5578                workspace.activate_next_pane(window, cx)
 5579            }))
 5580            .on_action(
 5581                cx.listener(|workspace, _: &ActivateNextWindow, _window, cx| {
 5582                    workspace.activate_next_window(cx)
 5583                }),
 5584            )
 5585            .on_action(
 5586                cx.listener(|workspace, _: &ActivatePreviousWindow, _window, cx| {
 5587                    workspace.activate_previous_window(cx)
 5588                }),
 5589            )
 5590            .on_action(cx.listener(|workspace, _: &ActivatePaneLeft, window, cx| {
 5591                workspace.activate_pane_in_direction(SplitDirection::Left, window, cx)
 5592            }))
 5593            .on_action(cx.listener(|workspace, _: &ActivatePaneRight, window, cx| {
 5594                workspace.activate_pane_in_direction(SplitDirection::Right, window, cx)
 5595            }))
 5596            .on_action(cx.listener(|workspace, _: &ActivatePaneUp, window, cx| {
 5597                workspace.activate_pane_in_direction(SplitDirection::Up, window, cx)
 5598            }))
 5599            .on_action(cx.listener(|workspace, _: &ActivatePaneDown, window, cx| {
 5600                workspace.activate_pane_in_direction(SplitDirection::Down, window, cx)
 5601            }))
 5602            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 5603                workspace.activate_next_pane(window, cx)
 5604            }))
 5605            .on_action(cx.listener(
 5606                |workspace, action: &MoveItemToPaneInDirection, window, cx| {
 5607                    workspace.move_item_to_pane_in_direction(action, window, cx)
 5608                },
 5609            ))
 5610            .on_action(cx.listener(|workspace, _: &SwapPaneLeft, _, cx| {
 5611                workspace.swap_pane_in_direction(SplitDirection::Left, cx)
 5612            }))
 5613            .on_action(cx.listener(|workspace, _: &SwapPaneRight, _, cx| {
 5614                workspace.swap_pane_in_direction(SplitDirection::Right, cx)
 5615            }))
 5616            .on_action(cx.listener(|workspace, _: &SwapPaneUp, _, cx| {
 5617                workspace.swap_pane_in_direction(SplitDirection::Up, cx)
 5618            }))
 5619            .on_action(cx.listener(|workspace, _: &SwapPaneDown, _, cx| {
 5620                workspace.swap_pane_in_direction(SplitDirection::Down, cx)
 5621            }))
 5622            .on_action(cx.listener(|this, _: &ToggleLeftDock, window, cx| {
 5623                this.toggle_dock(DockPosition::Left, window, cx);
 5624            }))
 5625            .on_action(cx.listener(
 5626                |workspace: &mut Workspace, _: &ToggleRightDock, window, cx| {
 5627                    workspace.toggle_dock(DockPosition::Right, window, cx);
 5628                },
 5629            ))
 5630            .on_action(cx.listener(
 5631                |workspace: &mut Workspace, _: &ToggleBottomDock, window, cx| {
 5632                    workspace.toggle_dock(DockPosition::Bottom, window, cx);
 5633                },
 5634            ))
 5635            .on_action(cx.listener(
 5636                |workspace: &mut Workspace, _: &CloseActiveDock, window, cx| {
 5637                    if !workspace.close_active_dock(window, cx) {
 5638                        cx.propagate();
 5639                    }
 5640                },
 5641            ))
 5642            .on_action(
 5643                cx.listener(|workspace: &mut Workspace, _: &CloseAllDocks, window, cx| {
 5644                    workspace.close_all_docks(window, cx);
 5645                }),
 5646            )
 5647            .on_action(cx.listener(
 5648                |workspace: &mut Workspace, _: &ClearAllNotifications, _, cx| {
 5649                    workspace.clear_all_notifications(cx);
 5650                },
 5651            ))
 5652            .on_action(cx.listener(
 5653                |workspace: &mut Workspace, _: &SuppressNotification, _, cx| {
 5654                    if let Some((notification_id, _)) = workspace.notifications.pop() {
 5655                        workspace.suppress_notification(&notification_id, cx);
 5656                    }
 5657                },
 5658            ))
 5659            .on_action(cx.listener(
 5660                |workspace: &mut Workspace, _: &ReopenClosedItem, window, cx| {
 5661                    workspace.reopen_closed_item(window, cx).detach();
 5662                },
 5663            ))
 5664            .on_action(cx.listener(
 5665                |workspace: &mut Workspace, _: &ResetActiveDockSize, window, cx| {
 5666                    for dock in workspace.all_docks() {
 5667                        if dock.focus_handle(cx).contains_focused(window, cx) {
 5668                            let Some(panel) = dock.read(cx).active_panel() else {
 5669                                return;
 5670                            };
 5671
 5672                            // Set to `None`, then the size will fall back to the default.
 5673                            panel.clone().set_size(None, window, cx);
 5674
 5675                            return;
 5676                        }
 5677                    }
 5678                },
 5679            ))
 5680            .on_action(cx.listener(
 5681                |workspace: &mut Workspace, _: &ResetOpenDocksSize, window, cx| {
 5682                    for dock in workspace.all_docks() {
 5683                        if let Some(panel) = dock.read(cx).visible_panel() {
 5684                            // Set to `None`, then the size will fall back to the default.
 5685                            panel.clone().set_size(None, window, cx);
 5686                        }
 5687                    }
 5688                },
 5689            ))
 5690            .on_action(cx.listener(
 5691                |workspace: &mut Workspace, act: &IncreaseActiveDockSize, window, cx| {
 5692                    adjust_active_dock_size_by_px(
 5693                        px_with_ui_font_fallback(act.px, cx),
 5694                        workspace,
 5695                        window,
 5696                        cx,
 5697                    );
 5698                },
 5699            ))
 5700            .on_action(cx.listener(
 5701                |workspace: &mut Workspace, act: &DecreaseActiveDockSize, window, cx| {
 5702                    adjust_active_dock_size_by_px(
 5703                        px_with_ui_font_fallback(act.px, cx) * -1.,
 5704                        workspace,
 5705                        window,
 5706                        cx,
 5707                    );
 5708                },
 5709            ))
 5710            .on_action(cx.listener(
 5711                |workspace: &mut Workspace, act: &IncreaseOpenDocksSize, window, cx| {
 5712                    adjust_open_docks_size_by_px(
 5713                        px_with_ui_font_fallback(act.px, cx),
 5714                        workspace,
 5715                        window,
 5716                        cx,
 5717                    );
 5718                },
 5719            ))
 5720            .on_action(cx.listener(
 5721                |workspace: &mut Workspace, act: &DecreaseOpenDocksSize, window, cx| {
 5722                    adjust_open_docks_size_by_px(
 5723                        px_with_ui_font_fallback(act.px, cx) * -1.,
 5724                        workspace,
 5725                        window,
 5726                        cx,
 5727                    );
 5728                },
 5729            ))
 5730            .on_action(cx.listener(Workspace::toggle_centered_layout))
 5731            .on_action(cx.listener(Workspace::cancel))
 5732    }
 5733
 5734    #[cfg(any(test, feature = "test-support"))]
 5735    pub fn test_new(project: Entity<Project>, window: &mut Window, cx: &mut Context<Self>) -> Self {
 5736        use node_runtime::NodeRuntime;
 5737        use session::Session;
 5738
 5739        let client = project.read(cx).client();
 5740        let user_store = project.read(cx).user_store();
 5741        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 5742        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 5743        window.activate_window();
 5744        let app_state = Arc::new(AppState {
 5745            languages: project.read(cx).languages().clone(),
 5746            workspace_store,
 5747            client,
 5748            user_store,
 5749            fs: project.read(cx).fs().clone(),
 5750            build_window_options: |_, _| Default::default(),
 5751            node_runtime: NodeRuntime::unavailable(),
 5752            session,
 5753        });
 5754        let workspace = Self::new(Default::default(), project, app_state, window, cx);
 5755        workspace
 5756            .active_pane
 5757            .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)));
 5758        workspace
 5759    }
 5760
 5761    pub fn register_action<A: Action>(
 5762        &mut self,
 5763        callback: impl Fn(&mut Self, &A, &mut Window, &mut Context<Self>) + 'static,
 5764    ) -> &mut Self {
 5765        let callback = Arc::new(callback);
 5766
 5767        self.workspace_actions.push(Box::new(move |div, _, _, cx| {
 5768            let callback = callback.clone();
 5769            div.on_action(cx.listener(move |workspace, event, window, cx| {
 5770                (callback)(workspace, event, window, cx)
 5771            }))
 5772        }));
 5773        self
 5774    }
 5775    pub fn register_action_renderer(
 5776        &mut self,
 5777        callback: impl Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div + 'static,
 5778    ) -> &mut Self {
 5779        self.workspace_actions.push(Box::new(callback));
 5780        self
 5781    }
 5782
 5783    fn add_workspace_actions_listeners(
 5784        &self,
 5785        mut div: Div,
 5786        window: &mut Window,
 5787        cx: &mut Context<Self>,
 5788    ) -> Div {
 5789        for action in self.workspace_actions.iter() {
 5790            div = (action)(div, self, window, cx)
 5791        }
 5792        div
 5793    }
 5794
 5795    pub fn has_active_modal(&self, _: &mut Window, cx: &mut App) -> bool {
 5796        self.modal_layer.read(cx).has_active_modal()
 5797    }
 5798
 5799    pub fn active_modal<V: ManagedView + 'static>(&self, cx: &App) -> Option<Entity<V>> {
 5800        self.modal_layer.read(cx).active_modal()
 5801    }
 5802
 5803    pub fn toggle_modal<V: ModalView, B>(&mut self, window: &mut Window, cx: &mut App, build: B)
 5804    where
 5805        B: FnOnce(&mut Window, &mut Context<V>) -> V,
 5806    {
 5807        self.modal_layer.update(cx, |modal_layer, cx| {
 5808            modal_layer.toggle_modal(window, cx, build)
 5809        })
 5810    }
 5811
 5812    pub fn toggle_status_toast<V: ToastView>(&mut self, entity: Entity<V>, cx: &mut App) {
 5813        self.toast_layer
 5814            .update(cx, |toast_layer, cx| toast_layer.toggle_toast(cx, entity))
 5815    }
 5816
 5817    pub fn toggle_centered_layout(
 5818        &mut self,
 5819        _: &ToggleCenteredLayout,
 5820        _: &mut Window,
 5821        cx: &mut Context<Self>,
 5822    ) {
 5823        self.centered_layout = !self.centered_layout;
 5824        if let Some(database_id) = self.database_id() {
 5825            cx.background_spawn(DB.set_centered_layout(database_id, self.centered_layout))
 5826                .detach_and_log_err(cx);
 5827        }
 5828        cx.notify();
 5829    }
 5830
 5831    fn adjust_padding(padding: Option<f32>) -> f32 {
 5832        padding
 5833            .unwrap_or(Self::DEFAULT_PADDING)
 5834            .clamp(0.0, Self::MAX_PADDING)
 5835    }
 5836
 5837    fn render_dock(
 5838        &self,
 5839        position: DockPosition,
 5840        dock: &Entity<Dock>,
 5841        window: &mut Window,
 5842        cx: &mut App,
 5843    ) -> Option<Div> {
 5844        if self.zoomed_position == Some(position) {
 5845            return None;
 5846        }
 5847
 5848        let leader_border = dock.read(cx).active_panel().and_then(|panel| {
 5849            let pane = panel.pane(cx)?;
 5850            let follower_states = &self.follower_states;
 5851            leader_border_for_pane(follower_states, &pane, window, cx)
 5852        });
 5853
 5854        Some(
 5855            div()
 5856                .flex()
 5857                .flex_none()
 5858                .overflow_hidden()
 5859                .child(dock.clone())
 5860                .children(leader_border),
 5861        )
 5862    }
 5863
 5864    pub fn for_window(window: &mut Window, _: &mut App) -> Option<Entity<Workspace>> {
 5865        window.root().flatten()
 5866    }
 5867
 5868    pub fn zoomed_item(&self) -> Option<&AnyWeakView> {
 5869        self.zoomed.as_ref()
 5870    }
 5871
 5872    pub fn activate_next_window(&mut self, cx: &mut Context<Self>) {
 5873        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 5874            return;
 5875        };
 5876        let windows = cx.windows();
 5877        let Some(next_window) = windows
 5878            .iter()
 5879            .cycle()
 5880            .skip_while(|window| window.window_id() != current_window_id)
 5881            .nth(1)
 5882        else {
 5883            return;
 5884        };
 5885        next_window
 5886            .update(cx, |_, window, _| window.activate_window())
 5887            .ok();
 5888    }
 5889
 5890    pub fn activate_previous_window(&mut self, cx: &mut Context<Self>) {
 5891        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 5892            return;
 5893        };
 5894        let windows = cx.windows();
 5895        let Some(prev_window) = windows
 5896            .iter()
 5897            .rev()
 5898            .cycle()
 5899            .skip_while(|window| window.window_id() != current_window_id)
 5900            .nth(1)
 5901        else {
 5902            return;
 5903        };
 5904        prev_window
 5905            .update(cx, |_, window, _| window.activate_window())
 5906            .ok();
 5907    }
 5908
 5909    pub fn cancel(&mut self, _: &menu::Cancel, window: &mut Window, cx: &mut Context<Self>) {
 5910        if cx.stop_active_drag(window) {
 5911            return;
 5912        } else if let Some((notification_id, _)) = self.notifications.pop() {
 5913            dismiss_app_notification(&notification_id, cx);
 5914        } else {
 5915            cx.propagate();
 5916        }
 5917    }
 5918
 5919    fn adjust_dock_size_by_px(
 5920        &mut self,
 5921        panel_size: Pixels,
 5922        dock_pos: DockPosition,
 5923        px: Pixels,
 5924        window: &mut Window,
 5925        cx: &mut Context<Self>,
 5926    ) {
 5927        match dock_pos {
 5928            DockPosition::Left => self.resize_left_dock(panel_size + px, window, cx),
 5929            DockPosition::Right => self.resize_right_dock(panel_size + px, window, cx),
 5930            DockPosition::Bottom => self.resize_bottom_dock(panel_size + px, window, cx),
 5931        }
 5932    }
 5933
 5934    fn resize_left_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 5935        let size = new_size.min(self.bounds.right() - RESIZE_HANDLE_SIZE);
 5936
 5937        self.left_dock.update(cx, |left_dock, cx| {
 5938            if WorkspaceSettings::get_global(cx)
 5939                .resize_all_panels_in_dock
 5940                .contains(&DockPosition::Left)
 5941            {
 5942                left_dock.resize_all_panels(Some(size), window, cx);
 5943            } else {
 5944                left_dock.resize_active_panel(Some(size), window, cx);
 5945            }
 5946        });
 5947    }
 5948
 5949    fn resize_right_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 5950        let mut size = new_size.max(self.bounds.left() - RESIZE_HANDLE_SIZE);
 5951        self.left_dock.read_with(cx, |left_dock, cx| {
 5952            let left_dock_size = left_dock
 5953                .active_panel_size(window, cx)
 5954                .unwrap_or(Pixels(0.0));
 5955            if left_dock_size + size > self.bounds.right() {
 5956                size = self.bounds.right() - left_dock_size
 5957            }
 5958        });
 5959        self.right_dock.update(cx, |right_dock, cx| {
 5960            if WorkspaceSettings::get_global(cx)
 5961                .resize_all_panels_in_dock
 5962                .contains(&DockPosition::Right)
 5963            {
 5964                right_dock.resize_all_panels(Some(size), window, cx);
 5965            } else {
 5966                right_dock.resize_active_panel(Some(size), window, cx);
 5967            }
 5968        });
 5969    }
 5970
 5971    fn resize_bottom_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 5972        let size = new_size.min(self.bounds.bottom() - RESIZE_HANDLE_SIZE - self.bounds.top());
 5973        self.bottom_dock.update(cx, |bottom_dock, cx| {
 5974            if WorkspaceSettings::get_global(cx)
 5975                .resize_all_panels_in_dock
 5976                .contains(&DockPosition::Bottom)
 5977            {
 5978                bottom_dock.resize_all_panels(Some(size), window, cx);
 5979            } else {
 5980                bottom_dock.resize_active_panel(Some(size), window, cx);
 5981            }
 5982        });
 5983    }
 5984
 5985    fn toggle_edit_predictions_all_files(
 5986        &mut self,
 5987        _: &ToggleEditPrediction,
 5988        _window: &mut Window,
 5989        cx: &mut Context<Self>,
 5990    ) {
 5991        let fs = self.project().read(cx).fs().clone();
 5992        let show_edit_predictions = all_language_settings(None, cx).show_edit_predictions(None, cx);
 5993        update_settings_file::<AllLanguageSettings>(fs, cx, move |file, _| {
 5994            file.defaults.show_edit_predictions = Some(!show_edit_predictions)
 5995        });
 5996    }
 5997}
 5998
 5999fn leader_border_for_pane(
 6000    follower_states: &HashMap<CollaboratorId, FollowerState>,
 6001    pane: &Entity<Pane>,
 6002    _: &Window,
 6003    cx: &App,
 6004) -> Option<Div> {
 6005    let (leader_id, _follower_state) = follower_states.iter().find_map(|(leader_id, state)| {
 6006        if state.pane() == pane {
 6007            Some((*leader_id, state))
 6008        } else {
 6009            None
 6010        }
 6011    })?;
 6012
 6013    let mut leader_color = match leader_id {
 6014        CollaboratorId::PeerId(leader_peer_id) => {
 6015            let room = ActiveCall::try_global(cx)?.read(cx).room()?.read(cx);
 6016            let leader = room.remote_participant_for_peer_id(leader_peer_id)?;
 6017
 6018            cx.theme()
 6019                .players()
 6020                .color_for_participant(leader.participant_index.0)
 6021                .cursor
 6022        }
 6023        CollaboratorId::Agent => cx.theme().players().agent().cursor,
 6024    };
 6025    leader_color.fade_out(0.3);
 6026    Some(
 6027        div()
 6028            .absolute()
 6029            .size_full()
 6030            .left_0()
 6031            .top_0()
 6032            .border_2()
 6033            .border_color(leader_color),
 6034    )
 6035}
 6036
 6037fn window_bounds_env_override() -> Option<Bounds<Pixels>> {
 6038    ZED_WINDOW_POSITION
 6039        .zip(*ZED_WINDOW_SIZE)
 6040        .map(|(position, size)| Bounds {
 6041            origin: position,
 6042            size,
 6043        })
 6044}
 6045
 6046fn open_items(
 6047    serialized_workspace: Option<SerializedWorkspace>,
 6048    mut project_paths_to_open: Vec<(PathBuf, Option<ProjectPath>)>,
 6049    window: &mut Window,
 6050    cx: &mut Context<Workspace>,
 6051) -> impl 'static + Future<Output = Result<Vec<Option<Result<Box<dyn ItemHandle>>>>>> + use<> {
 6052    let restored_items = serialized_workspace.map(|serialized_workspace| {
 6053        Workspace::load_workspace(
 6054            serialized_workspace,
 6055            project_paths_to_open
 6056                .iter()
 6057                .map(|(_, project_path)| project_path)
 6058                .cloned()
 6059                .collect(),
 6060            window,
 6061            cx,
 6062        )
 6063    });
 6064
 6065    cx.spawn_in(window, async move |workspace, cx| {
 6066        let mut opened_items = Vec::with_capacity(project_paths_to_open.len());
 6067
 6068        if let Some(restored_items) = restored_items {
 6069            let restored_items = restored_items.await?;
 6070
 6071            let restored_project_paths = restored_items
 6072                .iter()
 6073                .filter_map(|item| {
 6074                    cx.update(|_, cx| item.as_ref()?.project_path(cx))
 6075                        .ok()
 6076                        .flatten()
 6077                })
 6078                .collect::<HashSet<_>>();
 6079
 6080            for restored_item in restored_items {
 6081                opened_items.push(restored_item.map(Ok));
 6082            }
 6083
 6084            project_paths_to_open
 6085                .iter_mut()
 6086                .for_each(|(_, project_path)| {
 6087                    if let Some(project_path_to_open) = project_path {
 6088                        if restored_project_paths.contains(project_path_to_open) {
 6089                            *project_path = None;
 6090                        }
 6091                    }
 6092                });
 6093        } else {
 6094            for _ in 0..project_paths_to_open.len() {
 6095                opened_items.push(None);
 6096            }
 6097        }
 6098        assert!(opened_items.len() == project_paths_to_open.len());
 6099
 6100        let tasks =
 6101            project_paths_to_open
 6102                .into_iter()
 6103                .enumerate()
 6104                .map(|(ix, (abs_path, project_path))| {
 6105                    let workspace = workspace.clone();
 6106                    cx.spawn(async move |cx| {
 6107                        let file_project_path = project_path?;
 6108                        let abs_path_task = workspace.update(cx, |workspace, cx| {
 6109                            workspace.project().update(cx, |project, cx| {
 6110                                project.resolve_abs_path(abs_path.to_string_lossy().as_ref(), cx)
 6111                            })
 6112                        });
 6113
 6114                        // We only want to open file paths here. If one of the items
 6115                        // here is a directory, it was already opened further above
 6116                        // with a `find_or_create_worktree`.
 6117                        if let Ok(task) = abs_path_task {
 6118                            if task.await.map_or(true, |p| p.is_file()) {
 6119                                return Some((
 6120                                    ix,
 6121                                    workspace
 6122                                        .update_in(cx, |workspace, window, cx| {
 6123                                            workspace.open_path(
 6124                                                file_project_path,
 6125                                                None,
 6126                                                true,
 6127                                                window,
 6128                                                cx,
 6129                                            )
 6130                                        })
 6131                                        .log_err()?
 6132                                        .await,
 6133                                ));
 6134                            }
 6135                        }
 6136                        None
 6137                    })
 6138                });
 6139
 6140        let tasks = tasks.collect::<Vec<_>>();
 6141
 6142        let tasks = futures::future::join_all(tasks);
 6143        for (ix, path_open_result) in tasks.await.into_iter().flatten() {
 6144            opened_items[ix] = Some(path_open_result);
 6145        }
 6146
 6147        Ok(opened_items)
 6148    })
 6149}
 6150
 6151enum ActivateInDirectionTarget {
 6152    Pane(Entity<Pane>),
 6153    Dock(Entity<Dock>),
 6154}
 6155
 6156fn notify_if_database_failed(workspace: WindowHandle<Workspace>, cx: &mut AsyncApp) {
 6157    workspace
 6158        .update(cx, |workspace, _, cx| {
 6159            if (*db::ALL_FILE_DB_FAILED).load(std::sync::atomic::Ordering::Acquire) {
 6160                struct DatabaseFailedNotification;
 6161
 6162                workspace.show_notification(
 6163                    NotificationId::unique::<DatabaseFailedNotification>(),
 6164                    cx,
 6165                    |cx| {
 6166                        cx.new(|cx| {
 6167                            MessageNotification::new("Failed to load the database file.", cx)
 6168                                .primary_message("File an Issue")
 6169                                .primary_icon(IconName::Plus)
 6170                                .primary_on_click(|window, cx| {
 6171                                    window.dispatch_action(Box::new(FileBugReport), cx)
 6172                                })
 6173                        })
 6174                    },
 6175                );
 6176            }
 6177        })
 6178        .log_err();
 6179}
 6180
 6181fn px_with_ui_font_fallback(val: u32, cx: &Context<Workspace>) -> Pixels {
 6182    if val == 0 {
 6183        ThemeSettings::get_global(cx).ui_font_size(cx)
 6184    } else {
 6185        px(val as f32)
 6186    }
 6187}
 6188
 6189fn adjust_active_dock_size_by_px(
 6190    px: Pixels,
 6191    workspace: &mut Workspace,
 6192    window: &mut Window,
 6193    cx: &mut Context<Workspace>,
 6194) {
 6195    let Some(active_dock) = workspace
 6196        .all_docks()
 6197        .into_iter()
 6198        .find(|dock| dock.focus_handle(cx).contains_focused(window, cx))
 6199    else {
 6200        return;
 6201    };
 6202    let dock = active_dock.read(cx);
 6203    let Some(panel_size) = dock.active_panel_size(window, cx) else {
 6204        return;
 6205    };
 6206    let dock_pos = dock.position();
 6207    workspace.adjust_dock_size_by_px(panel_size, dock_pos, px, window, cx);
 6208}
 6209
 6210fn adjust_open_docks_size_by_px(
 6211    px: Pixels,
 6212    workspace: &mut Workspace,
 6213    window: &mut Window,
 6214    cx: &mut Context<Workspace>,
 6215) {
 6216    let docks = workspace
 6217        .all_docks()
 6218        .into_iter()
 6219        .filter_map(|dock| {
 6220            if dock.read(cx).is_open() {
 6221                let dock = dock.read(cx);
 6222                let panel_size = dock.active_panel_size(window, cx)?;
 6223                let dock_pos = dock.position();
 6224                Some((panel_size, dock_pos, px))
 6225            } else {
 6226                None
 6227            }
 6228        })
 6229        .collect::<Vec<_>>();
 6230
 6231    docks
 6232        .into_iter()
 6233        .for_each(|(panel_size, dock_pos, offset)| {
 6234            workspace.adjust_dock_size_by_px(panel_size, dock_pos, offset, window, cx);
 6235        });
 6236}
 6237
 6238impl Focusable for Workspace {
 6239    fn focus_handle(&self, cx: &App) -> FocusHandle {
 6240        self.active_pane.focus_handle(cx)
 6241    }
 6242}
 6243
 6244#[derive(Clone)]
 6245struct DraggedDock(DockPosition);
 6246
 6247impl Render for DraggedDock {
 6248    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
 6249        gpui::Empty
 6250    }
 6251}
 6252
 6253impl Render for Workspace {
 6254    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
 6255        let mut context = KeyContext::new_with_defaults();
 6256        context.add("Workspace");
 6257        context.set("keyboard_layout", cx.keyboard_layout().name().to_string());
 6258        if let Some(status) = self
 6259            .debugger_provider
 6260            .as_ref()
 6261            .and_then(|provider| provider.active_thread_state(cx))
 6262        {
 6263            match status {
 6264                ThreadStatus::Running | ThreadStatus::Stepping => {
 6265                    context.add("debugger_running");
 6266                }
 6267                ThreadStatus::Stopped => context.add("debugger_stopped"),
 6268                ThreadStatus::Exited | ThreadStatus::Ended => {}
 6269            }
 6270        }
 6271
 6272        let centered_layout = self.centered_layout
 6273            && self.center.panes().len() == 1
 6274            && self.active_item(cx).is_some();
 6275        let render_padding = |size| {
 6276            (size > 0.0).then(|| {
 6277                div()
 6278                    .h_full()
 6279                    .w(relative(size))
 6280                    .bg(cx.theme().colors().editor_background)
 6281                    .border_color(cx.theme().colors().pane_group_border)
 6282            })
 6283        };
 6284        let paddings = if centered_layout {
 6285            let settings = WorkspaceSettings::get_global(cx).centered_layout;
 6286            (
 6287                render_padding(Self::adjust_padding(settings.left_padding)),
 6288                render_padding(Self::adjust_padding(settings.right_padding)),
 6289            )
 6290        } else {
 6291            (None, None)
 6292        };
 6293        let ui_font = theme::setup_ui_font(window, cx);
 6294
 6295        let theme = cx.theme().clone();
 6296        let colors = theme.colors();
 6297        let notification_entities = self
 6298            .notifications
 6299            .iter()
 6300            .map(|(_, notification)| notification.entity_id())
 6301            .collect::<Vec<_>>();
 6302        let bottom_dock_layout = WorkspaceSettings::get_global(cx).bottom_dock_layout;
 6303
 6304        client_side_decorations(
 6305            self.actions(div(), window, cx)
 6306                .key_context(context)
 6307                .relative()
 6308                .size_full()
 6309                .flex()
 6310                .flex_col()
 6311                .font(ui_font)
 6312                .gap_0()
 6313                .justify_start()
 6314                .items_start()
 6315                .text_color(colors.text)
 6316                .overflow_hidden()
 6317                .children(self.titlebar_item.clone())
 6318                .on_modifiers_changed(move |_, _, cx| {
 6319                    for &id in &notification_entities {
 6320                        cx.notify(id);
 6321                    }
 6322                })
 6323                .child(
 6324                    div()
 6325                        .size_full()
 6326                        .relative()
 6327                        .flex_1()
 6328                        .flex()
 6329                        .flex_col()
 6330                        .child(
 6331                            div()
 6332                                .id("workspace")
 6333                                .bg(colors.background)
 6334                                .relative()
 6335                                .flex_1()
 6336                                .w_full()
 6337                                .flex()
 6338                                .flex_col()
 6339                                .overflow_hidden()
 6340                                .border_t_1()
 6341                                .border_b_1()
 6342                                .border_color(colors.border)
 6343                                .child({
 6344                                    let this = cx.entity();
 6345                                    canvas(
 6346                                        move |bounds, window, cx| {
 6347                                            this.update(cx, |this, cx| {
 6348                                                let bounds_changed = this.bounds != bounds;
 6349                                                this.bounds = bounds;
 6350
 6351                                                if bounds_changed {
 6352                                                    this.left_dock.update(cx, |dock, cx| {
 6353                                                        dock.clamp_panel_size(
 6354                                                            bounds.size.width,
 6355                                                            window,
 6356                                                            cx,
 6357                                                        )
 6358                                                    });
 6359
 6360                                                    this.right_dock.update(cx, |dock, cx| {
 6361                                                        dock.clamp_panel_size(
 6362                                                            bounds.size.width,
 6363                                                            window,
 6364                                                            cx,
 6365                                                        )
 6366                                                    });
 6367
 6368                                                    this.bottom_dock.update(cx, |dock, cx| {
 6369                                                        dock.clamp_panel_size(
 6370                                                            bounds.size.height,
 6371                                                            window,
 6372                                                            cx,
 6373                                                        )
 6374                                                    });
 6375                                                }
 6376                                            })
 6377                                        },
 6378                                        |_, _, _, _| {},
 6379                                    )
 6380                                    .absolute()
 6381                                    .size_full()
 6382                                })
 6383                                .when(self.zoomed.is_none(), |this| {
 6384                                    this.on_drag_move(cx.listener(
 6385                                        move |workspace,
 6386                                              e: &DragMoveEvent<DraggedDock>,
 6387                                              window,
 6388                                              cx| {
 6389                                            if workspace.previous_dock_drag_coordinates
 6390                                                != Some(e.event.position)
 6391                                            {
 6392                                                workspace.previous_dock_drag_coordinates =
 6393                                                    Some(e.event.position);
 6394                                                match e.drag(cx).0 {
 6395                                                    DockPosition::Left => {
 6396                                                        workspace.resize_left_dock(
 6397                                                            e.event.position.x
 6398                                                                - workspace.bounds.left(),
 6399                                                            window,
 6400                                                            cx,
 6401                                                        );
 6402                                                    }
 6403                                                    DockPosition::Right => {
 6404                                                        workspace.resize_right_dock(
 6405                                                            workspace.bounds.right()
 6406                                                                - e.event.position.x,
 6407                                                            window,
 6408                                                            cx,
 6409                                                        );
 6410                                                    }
 6411                                                    DockPosition::Bottom => {
 6412                                                        workspace.resize_bottom_dock(
 6413                                                            workspace.bounds.bottom()
 6414                                                                - e.event.position.y,
 6415                                                            window,
 6416                                                            cx,
 6417                                                        );
 6418                                                    }
 6419                                                };
 6420                                                workspace.serialize_workspace(window, cx);
 6421                                            }
 6422                                        },
 6423                                    ))
 6424                                })
 6425                                .child({
 6426                                    match bottom_dock_layout {
 6427                                        BottomDockLayout::Full => div()
 6428                                            .flex()
 6429                                            .flex_col()
 6430                                            .h_full()
 6431                                            .child(
 6432                                                div()
 6433                                                    .flex()
 6434                                                    .flex_row()
 6435                                                    .flex_1()
 6436                                                    .overflow_hidden()
 6437                                                    .children(self.render_dock(
 6438                                                        DockPosition::Left,
 6439                                                        &self.left_dock,
 6440                                                        window,
 6441                                                        cx,
 6442                                                    ))
 6443                                                    .child(
 6444                                                        div()
 6445                                                            .flex()
 6446                                                            .flex_col()
 6447                                                            .flex_1()
 6448                                                            .overflow_hidden()
 6449                                                            .child(
 6450                                                                h_flex()
 6451                                                                    .flex_1()
 6452                                                                    .when_some(
 6453                                                                        paddings.0,
 6454                                                                        |this, p| {
 6455                                                                            this.child(
 6456                                                                                p.border_r_1(),
 6457                                                                            )
 6458                                                                        },
 6459                                                                    )
 6460                                                                    .child(self.center.render(
 6461                                                                        self.zoomed.as_ref(),
 6462                                                                        &PaneRenderContext {
 6463                                                                            follower_states:
 6464                                                                                &self.follower_states,
 6465                                                                            active_call: self.active_call(),
 6466                                                                            active_pane: &self.active_pane,
 6467                                                                            app_state: &self.app_state,
 6468                                                                            project: &self.project,
 6469                                                                            workspace: &self.weak_self,
 6470                                                                        },
 6471                                                                        window,
 6472                                                                        cx,
 6473                                                                    ))
 6474                                                                    .when_some(
 6475                                                                        paddings.1,
 6476                                                                        |this, p| {
 6477                                                                            this.child(
 6478                                                                                p.border_l_1(),
 6479                                                                            )
 6480                                                                        },
 6481                                                                    ),
 6482                                                            ),
 6483                                                    )
 6484                                                    .children(self.render_dock(
 6485                                                        DockPosition::Right,
 6486                                                        &self.right_dock,
 6487                                                        window,
 6488                                                        cx,
 6489                                                    )),
 6490                                            )
 6491                                            .child(div().w_full().children(self.render_dock(
 6492                                                DockPosition::Bottom,
 6493                                                &self.bottom_dock,
 6494                                                window,
 6495                                                cx
 6496                                            ))),
 6497
 6498                                        BottomDockLayout::LeftAligned => div()
 6499                                            .flex()
 6500                                            .flex_row()
 6501                                            .h_full()
 6502                                            .child(
 6503                                                div()
 6504                                                    .flex()
 6505                                                    .flex_col()
 6506                                                    .flex_1()
 6507                                                    .h_full()
 6508                                                    .child(
 6509                                                        div()
 6510                                                            .flex()
 6511                                                            .flex_row()
 6512                                                            .flex_1()
 6513                                                            .children(self.render_dock(DockPosition::Left, &self.left_dock, window, cx))
 6514                                                            .child(
 6515                                                                div()
 6516                                                                    .flex()
 6517                                                                    .flex_col()
 6518                                                                    .flex_1()
 6519                                                                    .overflow_hidden()
 6520                                                                    .child(
 6521                                                                        h_flex()
 6522                                                                            .flex_1()
 6523                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 6524                                                                            .child(self.center.render(
 6525                                                                                self.zoomed.as_ref(),
 6526                                                                                &PaneRenderContext {
 6527                                                                                    follower_states:
 6528                                                                                        &self.follower_states,
 6529                                                                                    active_call: self.active_call(),
 6530                                                                                    active_pane: &self.active_pane,
 6531                                                                                    app_state: &self.app_state,
 6532                                                                                    project: &self.project,
 6533                                                                                    workspace: &self.weak_self,
 6534                                                                                },
 6535                                                                                window,
 6536                                                                                cx,
 6537                                                                            ))
 6538                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 6539                                                                    )
 6540                                                            )
 6541                                                    )
 6542                                                    .child(
 6543                                                        div()
 6544                                                            .w_full()
 6545                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 6546                                                    ),
 6547                                            )
 6548                                            .children(self.render_dock(
 6549                                                DockPosition::Right,
 6550                                                &self.right_dock,
 6551                                                window,
 6552                                                cx,
 6553                                            )),
 6554
 6555                                        BottomDockLayout::RightAligned => div()
 6556                                            .flex()
 6557                                            .flex_row()
 6558                                            .h_full()
 6559                                            .children(self.render_dock(
 6560                                                DockPosition::Left,
 6561                                                &self.left_dock,
 6562                                                window,
 6563                                                cx,
 6564                                            ))
 6565                                            .child(
 6566                                                div()
 6567                                                    .flex()
 6568                                                    .flex_col()
 6569                                                    .flex_1()
 6570                                                    .h_full()
 6571                                                    .child(
 6572                                                        div()
 6573                                                            .flex()
 6574                                                            .flex_row()
 6575                                                            .flex_1()
 6576                                                            .child(
 6577                                                                div()
 6578                                                                    .flex()
 6579                                                                    .flex_col()
 6580                                                                    .flex_1()
 6581                                                                    .overflow_hidden()
 6582                                                                    .child(
 6583                                                                        h_flex()
 6584                                                                            .flex_1()
 6585                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 6586                                                                            .child(self.center.render(
 6587                                                                                self.zoomed.as_ref(),
 6588                                                                                &PaneRenderContext {
 6589                                                                                    follower_states:
 6590                                                                                        &self.follower_states,
 6591                                                                                    active_call: self.active_call(),
 6592                                                                                    active_pane: &self.active_pane,
 6593                                                                                    app_state: &self.app_state,
 6594                                                                                    project: &self.project,
 6595                                                                                    workspace: &self.weak_self,
 6596                                                                                },
 6597                                                                                window,
 6598                                                                                cx,
 6599                                                                            ))
 6600                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 6601                                                                    )
 6602                                                            )
 6603                                                            .children(self.render_dock(DockPosition::Right, &self.right_dock, window, cx))
 6604                                                    )
 6605                                                    .child(
 6606                                                        div()
 6607                                                            .w_full()
 6608                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 6609                                                    ),
 6610                                            ),
 6611
 6612                                        BottomDockLayout::Contained => div()
 6613                                            .flex()
 6614                                            .flex_row()
 6615                                            .h_full()
 6616                                            .children(self.render_dock(
 6617                                                DockPosition::Left,
 6618                                                &self.left_dock,
 6619                                                window,
 6620                                                cx,
 6621                                            ))
 6622                                            .child(
 6623                                                div()
 6624                                                    .flex()
 6625                                                    .flex_col()
 6626                                                    .flex_1()
 6627                                                    .overflow_hidden()
 6628                                                    .child(
 6629                                                        h_flex()
 6630                                                            .flex_1()
 6631                                                            .when_some(paddings.0, |this, p| {
 6632                                                                this.child(p.border_r_1())
 6633                                                            })
 6634                                                            .child(self.center.render(
 6635                                                                self.zoomed.as_ref(),
 6636                                                                &PaneRenderContext {
 6637                                                                    follower_states:
 6638                                                                        &self.follower_states,
 6639                                                                    active_call: self.active_call(),
 6640                                                                    active_pane: &self.active_pane,
 6641                                                                    app_state: &self.app_state,
 6642                                                                    project: &self.project,
 6643                                                                    workspace: &self.weak_self,
 6644                                                                },
 6645                                                                window,
 6646                                                                cx,
 6647                                                            ))
 6648                                                            .when_some(paddings.1, |this, p| {
 6649                                                                this.child(p.border_l_1())
 6650                                                            }),
 6651                                                    )
 6652                                                    .children(self.render_dock(
 6653                                                        DockPosition::Bottom,
 6654                                                        &self.bottom_dock,
 6655                                                        window,
 6656                                                        cx,
 6657                                                    )),
 6658                                            )
 6659                                            .children(self.render_dock(
 6660                                                DockPosition::Right,
 6661                                                &self.right_dock,
 6662                                                window,
 6663                                                cx,
 6664                                            )),
 6665                                    }
 6666                                })
 6667                                .children(self.zoomed.as_ref().and_then(|view| {
 6668                                    Some(div()
 6669                                        .occlude()
 6670                                        .absolute()
 6671                                        .overflow_hidden()
 6672                                        .border_color(colors.border)
 6673                                        .bg(colors.background)
 6674                                        .child(view.upgrade()?)
 6675                                        .inset_0()
 6676                                        .shadow_lg())
 6677                                }))
 6678                                .children(self.render_notifications(window, cx)),
 6679                        )
 6680                        .child(self.status_bar.clone())
 6681                        .child(self.modal_layer.clone())
 6682                        .child(self.toast_layer.clone()),
 6683                ),
 6684            window,
 6685            cx,
 6686        )
 6687    }
 6688}
 6689
 6690impl WorkspaceStore {
 6691    pub fn new(client: Arc<Client>, cx: &mut Context<Self>) -> Self {
 6692        Self {
 6693            workspaces: Default::default(),
 6694            _subscriptions: vec![
 6695                client.add_request_handler(cx.weak_entity(), Self::handle_follow),
 6696                client.add_message_handler(cx.weak_entity(), Self::handle_update_followers),
 6697            ],
 6698            client,
 6699        }
 6700    }
 6701
 6702    pub fn update_followers(
 6703        &self,
 6704        project_id: Option<u64>,
 6705        update: proto::update_followers::Variant,
 6706        cx: &App,
 6707    ) -> Option<()> {
 6708        let active_call = ActiveCall::try_global(cx)?;
 6709        let room_id = active_call.read(cx).room()?.read(cx).id();
 6710        self.client
 6711            .send(proto::UpdateFollowers {
 6712                room_id,
 6713                project_id,
 6714                variant: Some(update),
 6715            })
 6716            .log_err()
 6717    }
 6718
 6719    pub async fn handle_follow(
 6720        this: Entity<Self>,
 6721        envelope: TypedEnvelope<proto::Follow>,
 6722        mut cx: AsyncApp,
 6723    ) -> Result<proto::FollowResponse> {
 6724        this.update(&mut cx, |this, cx| {
 6725            let follower = Follower {
 6726                project_id: envelope.payload.project_id,
 6727                peer_id: envelope.original_sender_id()?,
 6728            };
 6729
 6730            let mut response = proto::FollowResponse::default();
 6731            this.workspaces.retain(|workspace| {
 6732                workspace
 6733                    .update(cx, |workspace, window, cx| {
 6734                        let handler_response =
 6735                            workspace.handle_follow(follower.project_id, window, cx);
 6736                        if let Some(active_view) = handler_response.active_view.clone() {
 6737                            if workspace.project.read(cx).remote_id() == follower.project_id {
 6738                                response.active_view = Some(active_view)
 6739                            }
 6740                        }
 6741                    })
 6742                    .is_ok()
 6743            });
 6744
 6745            Ok(response)
 6746        })?
 6747    }
 6748
 6749    async fn handle_update_followers(
 6750        this: Entity<Self>,
 6751        envelope: TypedEnvelope<proto::UpdateFollowers>,
 6752        mut cx: AsyncApp,
 6753    ) -> Result<()> {
 6754        let leader_id = envelope.original_sender_id()?;
 6755        let update = envelope.payload;
 6756
 6757        this.update(&mut cx, |this, cx| {
 6758            this.workspaces.retain(|workspace| {
 6759                workspace
 6760                    .update(cx, |workspace, window, cx| {
 6761                        let project_id = workspace.project.read(cx).remote_id();
 6762                        if update.project_id != project_id && update.project_id.is_some() {
 6763                            return;
 6764                        }
 6765                        workspace.handle_update_followers(leader_id, update.clone(), window, cx);
 6766                    })
 6767                    .is_ok()
 6768            });
 6769            Ok(())
 6770        })?
 6771    }
 6772
 6773    pub fn workspaces(&self) -> &HashSet<WindowHandle<Workspace>> {
 6774        &self.workspaces
 6775    }
 6776}
 6777
 6778impl ViewId {
 6779    pub(crate) fn from_proto(message: proto::ViewId) -> Result<Self> {
 6780        Ok(Self {
 6781            creator: message
 6782                .creator
 6783                .map(CollaboratorId::PeerId)
 6784                .context("creator is missing")?,
 6785            id: message.id,
 6786        })
 6787    }
 6788
 6789    pub(crate) fn to_proto(self) -> Option<proto::ViewId> {
 6790        if let CollaboratorId::PeerId(peer_id) = self.creator {
 6791            Some(proto::ViewId {
 6792                creator: Some(peer_id),
 6793                id: self.id,
 6794            })
 6795        } else {
 6796            None
 6797        }
 6798    }
 6799}
 6800
 6801impl FollowerState {
 6802    fn pane(&self) -> &Entity<Pane> {
 6803        self.dock_pane.as_ref().unwrap_or(&self.center_pane)
 6804    }
 6805}
 6806
 6807pub trait WorkspaceHandle {
 6808    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath>;
 6809}
 6810
 6811impl WorkspaceHandle for Entity<Workspace> {
 6812    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath> {
 6813        self.read(cx)
 6814            .worktrees(cx)
 6815            .flat_map(|worktree| {
 6816                let worktree_id = worktree.read(cx).id();
 6817                worktree.read(cx).files(true, 0).map(move |f| ProjectPath {
 6818                    worktree_id,
 6819                    path: f.path.clone(),
 6820                })
 6821            })
 6822            .collect::<Vec<_>>()
 6823    }
 6824}
 6825
 6826impl std::fmt::Debug for OpenPaths {
 6827    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
 6828        f.debug_struct("OpenPaths")
 6829            .field("paths", &self.paths)
 6830            .finish()
 6831    }
 6832}
 6833
 6834pub async fn last_opened_workspace_location() -> Option<SerializedWorkspaceLocation> {
 6835    DB.last_workspace().await.log_err().flatten()
 6836}
 6837
 6838pub fn last_session_workspace_locations(
 6839    last_session_id: &str,
 6840    last_session_window_stack: Option<Vec<WindowId>>,
 6841) -> Option<Vec<SerializedWorkspaceLocation>> {
 6842    DB.last_session_workspace_locations(last_session_id, last_session_window_stack)
 6843        .log_err()
 6844}
 6845
 6846actions!(
 6847    collab,
 6848    [
 6849        /// Opens the channel notes for the current call.
 6850        ///
 6851        /// If you want to open a specific channel, use `zed::OpenZedUrl` with a channel notes URL -
 6852        /// can be copied via "Copy link to section" in the context menu of the channel notes
 6853        /// buffer. These URLs look like `https://zed.dev/channel/channel-name-CHANNEL_ID/notes`.
 6854        OpenChannelNotes,
 6855        /// Mutes your microphone.
 6856        Mute,
 6857        /// Deafens yourself (mute both microphone and speakers).
 6858        Deafen,
 6859        /// Leaves the current call.
 6860        LeaveCall,
 6861        /// Shares the current project with collaborators.
 6862        ShareProject,
 6863        /// Shares your screen with collaborators.
 6864        ScreenShare
 6865    ]
 6866);
 6867actions!(
 6868    zed,
 6869    [
 6870        /// Opens the Zed log file.
 6871        OpenLog
 6872    ]
 6873);
 6874
 6875async fn join_channel_internal(
 6876    channel_id: ChannelId,
 6877    app_state: &Arc<AppState>,
 6878    requesting_window: Option<WindowHandle<Workspace>>,
 6879    active_call: &Entity<ActiveCall>,
 6880    cx: &mut AsyncApp,
 6881) -> Result<bool> {
 6882    let (should_prompt, open_room) = active_call.update(cx, |active_call, cx| {
 6883        let Some(room) = active_call.room().map(|room| room.read(cx)) else {
 6884            return (false, None);
 6885        };
 6886
 6887        let already_in_channel = room.channel_id() == Some(channel_id);
 6888        let should_prompt = room.is_sharing_project()
 6889            && !room.remote_participants().is_empty()
 6890            && !already_in_channel;
 6891        let open_room = if already_in_channel {
 6892            active_call.room().cloned()
 6893        } else {
 6894            None
 6895        };
 6896        (should_prompt, open_room)
 6897    })?;
 6898
 6899    if let Some(room) = open_room {
 6900        let task = room.update(cx, |room, cx| {
 6901            if let Some((project, host)) = room.most_active_project(cx) {
 6902                return Some(join_in_room_project(project, host, app_state.clone(), cx));
 6903            }
 6904
 6905            None
 6906        })?;
 6907        if let Some(task) = task {
 6908            task.await?;
 6909        }
 6910        return anyhow::Ok(true);
 6911    }
 6912
 6913    if should_prompt {
 6914        if let Some(workspace) = requesting_window {
 6915            let answer = workspace
 6916                .update(cx, |_, window, cx| {
 6917                    window.prompt(
 6918                        PromptLevel::Warning,
 6919                        "Do you want to switch channels?",
 6920                        Some("Leaving this call will unshare your current project."),
 6921                        &["Yes, Join Channel", "Cancel"],
 6922                        cx,
 6923                    )
 6924                })?
 6925                .await;
 6926
 6927            if answer == Ok(1) {
 6928                return Ok(false);
 6929            }
 6930        } else {
 6931            return Ok(false); // unreachable!() hopefully
 6932        }
 6933    }
 6934
 6935    let client = cx.update(|cx| active_call.read(cx).client())?;
 6936
 6937    let mut client_status = client.status();
 6938
 6939    // this loop will terminate within client::CONNECTION_TIMEOUT seconds.
 6940    'outer: loop {
 6941        let Some(status) = client_status.recv().await else {
 6942            anyhow::bail!("error connecting");
 6943        };
 6944
 6945        match status {
 6946            Status::Connecting
 6947            | Status::Authenticating
 6948            | Status::Authenticated
 6949            | Status::Reconnecting
 6950            | Status::Reauthenticating => continue,
 6951            Status::Connected { .. } => break 'outer,
 6952            Status::SignedOut | Status::AuthenticationError => {
 6953                return Err(ErrorCode::SignedOut.into());
 6954            }
 6955            Status::UpgradeRequired => return Err(ErrorCode::UpgradeRequired.into()),
 6956            Status::ConnectionError | Status::ConnectionLost | Status::ReconnectionError { .. } => {
 6957                return Err(ErrorCode::Disconnected.into());
 6958            }
 6959        }
 6960    }
 6961
 6962    let room = active_call
 6963        .update(cx, |active_call, cx| {
 6964            active_call.join_channel(channel_id, cx)
 6965        })?
 6966        .await?;
 6967
 6968    let Some(room) = room else {
 6969        return anyhow::Ok(true);
 6970    };
 6971
 6972    room.update(cx, |room, _| room.room_update_completed())?
 6973        .await;
 6974
 6975    let task = room.update(cx, |room, cx| {
 6976        if let Some((project, host)) = room.most_active_project(cx) {
 6977            return Some(join_in_room_project(project, host, app_state.clone(), cx));
 6978        }
 6979
 6980        // If you are the first to join a channel, see if you should share your project.
 6981        if room.remote_participants().is_empty() && !room.local_participant_is_guest() {
 6982            if let Some(workspace) = requesting_window {
 6983                let project = workspace.update(cx, |workspace, _, cx| {
 6984                    let project = workspace.project.read(cx);
 6985
 6986                    if !CallSettings::get_global(cx).share_on_join {
 6987                        return None;
 6988                    }
 6989
 6990                    if (project.is_local() || project.is_via_ssh())
 6991                        && project.visible_worktrees(cx).any(|tree| {
 6992                            tree.read(cx)
 6993                                .root_entry()
 6994                                .map_or(false, |entry| entry.is_dir())
 6995                        })
 6996                    {
 6997                        Some(workspace.project.clone())
 6998                    } else {
 6999                        None
 7000                    }
 7001                });
 7002                if let Ok(Some(project)) = project {
 7003                    return Some(cx.spawn(async move |room, cx| {
 7004                        room.update(cx, |room, cx| room.share_project(project, cx))?
 7005                            .await?;
 7006                        Ok(())
 7007                    }));
 7008                }
 7009            }
 7010        }
 7011
 7012        None
 7013    })?;
 7014    if let Some(task) = task {
 7015        task.await?;
 7016        return anyhow::Ok(true);
 7017    }
 7018    anyhow::Ok(false)
 7019}
 7020
 7021pub fn join_channel(
 7022    channel_id: ChannelId,
 7023    app_state: Arc<AppState>,
 7024    requesting_window: Option<WindowHandle<Workspace>>,
 7025    cx: &mut App,
 7026) -> Task<Result<()>> {
 7027    let active_call = ActiveCall::global(cx);
 7028    cx.spawn(async move |cx| {
 7029        let result = join_channel_internal(
 7030            channel_id,
 7031            &app_state,
 7032            requesting_window,
 7033            &active_call,
 7034             cx,
 7035        )
 7036            .await;
 7037
 7038        // join channel succeeded, and opened a window
 7039        if matches!(result, Ok(true)) {
 7040            return anyhow::Ok(());
 7041        }
 7042
 7043        // find an existing workspace to focus and show call controls
 7044        let mut active_window =
 7045            requesting_window.or_else(|| activate_any_workspace_window( cx));
 7046        if active_window.is_none() {
 7047            // no open workspaces, make one to show the error in (blergh)
 7048            let (window_handle, _) = cx
 7049                .update(|cx| {
 7050                    Workspace::new_local(vec![], app_state.clone(), requesting_window, None, cx)
 7051                })?
 7052                .await?;
 7053
 7054            if result.is_ok() {
 7055                cx.update(|cx| {
 7056                    cx.dispatch_action(&OpenChannelNotes);
 7057                }).log_err();
 7058            }
 7059
 7060            active_window = Some(window_handle);
 7061        }
 7062
 7063        if let Err(err) = result {
 7064            log::error!("failed to join channel: {}", err);
 7065            if let Some(active_window) = active_window {
 7066                active_window
 7067                    .update(cx, |_, window, cx| {
 7068                        let detail: SharedString = match err.error_code() {
 7069                            ErrorCode::SignedOut => {
 7070                                "Please sign in to continue.".into()
 7071                            }
 7072                            ErrorCode::UpgradeRequired => {
 7073                                "Your are running an unsupported version of Zed. Please update to continue.".into()
 7074                            }
 7075                            ErrorCode::NoSuchChannel => {
 7076                                "No matching channel was found. Please check the link and try again.".into()
 7077                            }
 7078                            ErrorCode::Forbidden => {
 7079                                "This channel is private, and you do not have access. Please ask someone to add you and try again.".into()
 7080                            }
 7081                            ErrorCode::Disconnected => "Please check your internet connection and try again.".into(),
 7082                            _ => format!("{}\n\nPlease try again.", err).into(),
 7083                        };
 7084                        window.prompt(
 7085                            PromptLevel::Critical,
 7086                            "Failed to join channel",
 7087                            Some(&detail),
 7088                            &["Ok"],
 7089                        cx)
 7090                    })?
 7091                    .await
 7092                    .ok();
 7093            }
 7094        }
 7095
 7096        // return ok, we showed the error to the user.
 7097        anyhow::Ok(())
 7098    })
 7099}
 7100
 7101pub async fn get_any_active_workspace(
 7102    app_state: Arc<AppState>,
 7103    mut cx: AsyncApp,
 7104) -> anyhow::Result<WindowHandle<Workspace>> {
 7105    // find an existing workspace to focus and show call controls
 7106    let active_window = activate_any_workspace_window(&mut cx);
 7107    if active_window.is_none() {
 7108        cx.update(|cx| Workspace::new_local(vec![], app_state.clone(), None, None, cx))?
 7109            .await?;
 7110    }
 7111    activate_any_workspace_window(&mut cx).context("could not open zed")
 7112}
 7113
 7114fn activate_any_workspace_window(cx: &mut AsyncApp) -> Option<WindowHandle<Workspace>> {
 7115    cx.update(|cx| {
 7116        if let Some(workspace_window) = cx
 7117            .active_window()
 7118            .and_then(|window| window.downcast::<Workspace>())
 7119        {
 7120            return Some(workspace_window);
 7121        }
 7122
 7123        for window in cx.windows() {
 7124            if let Some(workspace_window) = window.downcast::<Workspace>() {
 7125                workspace_window
 7126                    .update(cx, |_, window, _| window.activate_window())
 7127                    .ok();
 7128                return Some(workspace_window);
 7129            }
 7130        }
 7131        None
 7132    })
 7133    .ok()
 7134    .flatten()
 7135}
 7136
 7137pub fn local_workspace_windows(cx: &App) -> Vec<WindowHandle<Workspace>> {
 7138    cx.windows()
 7139        .into_iter()
 7140        .filter_map(|window| window.downcast::<Workspace>())
 7141        .filter(|workspace| {
 7142            workspace
 7143                .read(cx)
 7144                .is_ok_and(|workspace| workspace.project.read(cx).is_local())
 7145        })
 7146        .collect()
 7147}
 7148
 7149#[derive(Default)]
 7150pub struct OpenOptions {
 7151    pub visible: Option<OpenVisible>,
 7152    pub focus: Option<bool>,
 7153    pub open_new_workspace: Option<bool>,
 7154    pub replace_window: Option<WindowHandle<Workspace>>,
 7155    pub env: Option<HashMap<String, String>>,
 7156}
 7157
 7158#[allow(clippy::type_complexity)]
 7159pub fn open_paths(
 7160    abs_paths: &[PathBuf],
 7161    app_state: Arc<AppState>,
 7162    open_options: OpenOptions,
 7163    cx: &mut App,
 7164) -> Task<
 7165    anyhow::Result<(
 7166        WindowHandle<Workspace>,
 7167        Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 7168    )>,
 7169> {
 7170    let abs_paths = abs_paths.to_vec();
 7171    let mut existing = None;
 7172    let mut best_match = None;
 7173    let mut open_visible = OpenVisible::All;
 7174
 7175    cx.spawn(async move |cx| {
 7176        if open_options.open_new_workspace != Some(true) {
 7177            let all_paths = abs_paths.iter().map(|path| app_state.fs.metadata(path));
 7178            let all_metadatas = futures::future::join_all(all_paths)
 7179                .await
 7180                .into_iter()
 7181                .filter_map(|result| result.ok().flatten())
 7182                .collect::<Vec<_>>();
 7183
 7184            cx.update(|cx| {
 7185                for window in local_workspace_windows(cx) {
 7186                    if let Ok(workspace) = window.read(cx) {
 7187                        let m = workspace.project.read(cx).visibility_for_paths(
 7188                            &abs_paths,
 7189                            &all_metadatas,
 7190                            open_options.open_new_workspace == None,
 7191                            cx,
 7192                        );
 7193                        if m > best_match {
 7194                            existing = Some(window);
 7195                            best_match = m;
 7196                        } else if best_match.is_none()
 7197                            && open_options.open_new_workspace == Some(false)
 7198                        {
 7199                            existing = Some(window)
 7200                        }
 7201                    }
 7202                }
 7203            })?;
 7204
 7205            if open_options.open_new_workspace.is_none() && existing.is_none() {
 7206                if all_metadatas.iter().all(|file| !file.is_dir) {
 7207                    cx.update(|cx| {
 7208                        if let Some(window) = cx
 7209                            .active_window()
 7210                            .and_then(|window| window.downcast::<Workspace>())
 7211                        {
 7212                            if let Ok(workspace) = window.read(cx) {
 7213                                let project = workspace.project().read(cx);
 7214                                if project.is_local() && !project.is_via_collab() {
 7215                                    existing = Some(window);
 7216                                    open_visible = OpenVisible::None;
 7217                                    return;
 7218                                }
 7219                            }
 7220                        }
 7221                        for window in local_workspace_windows(cx) {
 7222                            if let Ok(workspace) = window.read(cx) {
 7223                                let project = workspace.project().read(cx);
 7224                                if project.is_via_collab() {
 7225                                    continue;
 7226                                }
 7227                                existing = Some(window);
 7228                                open_visible = OpenVisible::None;
 7229                                break;
 7230                            }
 7231                        }
 7232                    })?;
 7233                }
 7234            }
 7235        }
 7236
 7237        if let Some(existing) = existing {
 7238            let open_task = existing
 7239                .update(cx, |workspace, window, cx| {
 7240                    window.activate_window();
 7241                    workspace.open_paths(
 7242                        abs_paths,
 7243                        OpenOptions {
 7244                            visible: Some(open_visible),
 7245                            ..Default::default()
 7246                        },
 7247                        None,
 7248                        window,
 7249                        cx,
 7250                    )
 7251                })?
 7252                .await;
 7253
 7254            _ = existing.update(cx, |workspace, _, cx| {
 7255                for item in open_task.iter().flatten() {
 7256                    if let Err(e) = item {
 7257                        workspace.show_error(&e, cx);
 7258                    }
 7259                }
 7260            });
 7261
 7262            Ok((existing, open_task))
 7263        } else {
 7264            cx.update(move |cx| {
 7265                Workspace::new_local(
 7266                    abs_paths,
 7267                    app_state.clone(),
 7268                    open_options.replace_window,
 7269                    open_options.env,
 7270                    cx,
 7271                )
 7272            })?
 7273            .await
 7274        }
 7275    })
 7276}
 7277
 7278pub fn open_new(
 7279    open_options: OpenOptions,
 7280    app_state: Arc<AppState>,
 7281    cx: &mut App,
 7282    init: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + 'static + Send,
 7283) -> Task<anyhow::Result<()>> {
 7284    let task = Workspace::new_local(Vec::new(), app_state, None, open_options.env, cx);
 7285    cx.spawn(async move |cx| {
 7286        let (workspace, opened_paths) = task.await?;
 7287        workspace.update(cx, |workspace, window, cx| {
 7288            if opened_paths.is_empty() {
 7289                init(workspace, window, cx)
 7290            }
 7291        })?;
 7292        Ok(())
 7293    })
 7294}
 7295
 7296pub fn create_and_open_local_file(
 7297    path: &'static Path,
 7298    window: &mut Window,
 7299    cx: &mut Context<Workspace>,
 7300    default_content: impl 'static + Send + FnOnce() -> Rope,
 7301) -> Task<Result<Box<dyn ItemHandle>>> {
 7302    cx.spawn_in(window, async move |workspace, cx| {
 7303        let fs = workspace.read_with(cx, |workspace, _| workspace.app_state().fs.clone())?;
 7304        if !fs.is_file(path).await {
 7305            fs.create_file(path, Default::default()).await?;
 7306            fs.save(path, &default_content(), Default::default())
 7307                .await?;
 7308        }
 7309
 7310        let mut items = workspace
 7311            .update_in(cx, |workspace, window, cx| {
 7312                workspace.with_local_workspace(window, cx, |workspace, window, cx| {
 7313                    workspace.open_paths(
 7314                        vec![path.to_path_buf()],
 7315                        OpenOptions {
 7316                            visible: Some(OpenVisible::None),
 7317                            ..Default::default()
 7318                        },
 7319                        None,
 7320                        window,
 7321                        cx,
 7322                    )
 7323                })
 7324            })?
 7325            .await?
 7326            .await;
 7327
 7328        let item = items.pop().flatten();
 7329        item.with_context(|| format!("path {path:?} is not a file"))?
 7330    })
 7331}
 7332
 7333pub fn open_ssh_project_with_new_connection(
 7334    window: WindowHandle<Workspace>,
 7335    connection_options: SshConnectionOptions,
 7336    cancel_rx: oneshot::Receiver<()>,
 7337    delegate: Arc<dyn SshClientDelegate>,
 7338    app_state: Arc<AppState>,
 7339    paths: Vec<PathBuf>,
 7340    cx: &mut App,
 7341) -> Task<Result<()>> {
 7342    cx.spawn(async move |cx| {
 7343        let (serialized_ssh_project, workspace_id, serialized_workspace) =
 7344            serialize_ssh_project(connection_options.clone(), paths.clone(), cx).await?;
 7345
 7346        let session = match cx
 7347            .update(|cx| {
 7348                remote::SshRemoteClient::new(
 7349                    ConnectionIdentifier::Workspace(workspace_id.0),
 7350                    connection_options,
 7351                    cancel_rx,
 7352                    delegate,
 7353                    cx,
 7354                )
 7355            })?
 7356            .await?
 7357        {
 7358            Some(result) => result,
 7359            None => return Ok(()),
 7360        };
 7361
 7362        let project = cx.update(|cx| {
 7363            project::Project::ssh(
 7364                session,
 7365                app_state.client.clone(),
 7366                app_state.node_runtime.clone(),
 7367                app_state.user_store.clone(),
 7368                app_state.languages.clone(),
 7369                app_state.fs.clone(),
 7370                cx,
 7371            )
 7372        })?;
 7373
 7374        open_ssh_project_inner(
 7375            project,
 7376            paths,
 7377            serialized_ssh_project,
 7378            workspace_id,
 7379            serialized_workspace,
 7380            app_state,
 7381            window,
 7382            cx,
 7383        )
 7384        .await
 7385    })
 7386}
 7387
 7388pub fn open_ssh_project_with_existing_connection(
 7389    connection_options: SshConnectionOptions,
 7390    project: Entity<Project>,
 7391    paths: Vec<PathBuf>,
 7392    app_state: Arc<AppState>,
 7393    window: WindowHandle<Workspace>,
 7394    cx: &mut AsyncApp,
 7395) -> Task<Result<()>> {
 7396    cx.spawn(async move |cx| {
 7397        let (serialized_ssh_project, workspace_id, serialized_workspace) =
 7398            serialize_ssh_project(connection_options.clone(), paths.clone(), cx).await?;
 7399
 7400        open_ssh_project_inner(
 7401            project,
 7402            paths,
 7403            serialized_ssh_project,
 7404            workspace_id,
 7405            serialized_workspace,
 7406            app_state,
 7407            window,
 7408            cx,
 7409        )
 7410        .await
 7411    })
 7412}
 7413
 7414async fn open_ssh_project_inner(
 7415    project: Entity<Project>,
 7416    paths: Vec<PathBuf>,
 7417    serialized_ssh_project: SerializedSshProject,
 7418    workspace_id: WorkspaceId,
 7419    serialized_workspace: Option<SerializedWorkspace>,
 7420    app_state: Arc<AppState>,
 7421    window: WindowHandle<Workspace>,
 7422    cx: &mut AsyncApp,
 7423) -> Result<()> {
 7424    let toolchains = DB.toolchains(workspace_id).await?;
 7425    for (toolchain, worktree_id, path) in toolchains {
 7426        project
 7427            .update(cx, |this, cx| {
 7428                this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 7429            })?
 7430            .await;
 7431    }
 7432    let mut project_paths_to_open = vec![];
 7433    let mut project_path_errors = vec![];
 7434
 7435    for path in paths {
 7436        let result = cx
 7437            .update(|cx| Workspace::project_path_for_path(project.clone(), &path, true, cx))?
 7438            .await;
 7439        match result {
 7440            Ok((_, project_path)) => {
 7441                project_paths_to_open.push((path.clone(), Some(project_path)));
 7442            }
 7443            Err(error) => {
 7444                project_path_errors.push(error);
 7445            }
 7446        };
 7447    }
 7448
 7449    if project_paths_to_open.is_empty() {
 7450        return Err(project_path_errors.pop().context("no paths given")?);
 7451    }
 7452
 7453    if let Some(detach_session_task) = window
 7454        .update(cx, |_workspace, window, cx| {
 7455            cx.spawn_in(window, async move |this, cx| {
 7456                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))
 7457            })
 7458        })
 7459        .ok()
 7460    {
 7461        detach_session_task.await.ok();
 7462    }
 7463
 7464    cx.update_window(window.into(), |_, window, cx| {
 7465        window.replace_root(cx, |window, cx| {
 7466            telemetry::event!("SSH Project Opened");
 7467
 7468            let mut workspace =
 7469                Workspace::new(Some(workspace_id), project, app_state.clone(), window, cx);
 7470            workspace.set_serialized_ssh_project(serialized_ssh_project);
 7471            workspace.update_history(cx);
 7472
 7473            if let Some(ref serialized) = serialized_workspace {
 7474                workspace.centered_layout = serialized.centered_layout;
 7475            }
 7476
 7477            workspace
 7478        });
 7479    })?;
 7480
 7481    window
 7482        .update(cx, |_, window, cx| {
 7483            window.activate_window();
 7484            open_items(serialized_workspace, project_paths_to_open, window, cx)
 7485        })?
 7486        .await?;
 7487
 7488    window.update(cx, |workspace, _, cx| {
 7489        for error in project_path_errors {
 7490            if error.error_code() == proto::ErrorCode::DevServerProjectPathDoesNotExist {
 7491                if let Some(path) = error.error_tag("path") {
 7492                    workspace.show_error(&anyhow!("'{path}' does not exist"), cx)
 7493                }
 7494            } else {
 7495                workspace.show_error(&error, cx)
 7496            }
 7497        }
 7498    })?;
 7499
 7500    Ok(())
 7501}
 7502
 7503fn serialize_ssh_project(
 7504    connection_options: SshConnectionOptions,
 7505    paths: Vec<PathBuf>,
 7506    cx: &AsyncApp,
 7507) -> Task<
 7508    Result<(
 7509        SerializedSshProject,
 7510        WorkspaceId,
 7511        Option<SerializedWorkspace>,
 7512    )>,
 7513> {
 7514    cx.background_spawn(async move {
 7515        let serialized_ssh_project = persistence::DB
 7516            .get_or_create_ssh_project(
 7517                connection_options.host.clone(),
 7518                connection_options.port,
 7519                paths
 7520                    .iter()
 7521                    .map(|path| path.to_string_lossy().to_string())
 7522                    .collect::<Vec<_>>(),
 7523                connection_options.username.clone(),
 7524            )
 7525            .await?;
 7526
 7527        let serialized_workspace =
 7528            persistence::DB.workspace_for_ssh_project(&serialized_ssh_project);
 7529
 7530        let workspace_id = if let Some(workspace_id) =
 7531            serialized_workspace.as_ref().map(|workspace| workspace.id)
 7532        {
 7533            workspace_id
 7534        } else {
 7535            persistence::DB.next_id().await?
 7536        };
 7537
 7538        Ok((serialized_ssh_project, workspace_id, serialized_workspace))
 7539    })
 7540}
 7541
 7542pub fn join_in_room_project(
 7543    project_id: u64,
 7544    follow_user_id: u64,
 7545    app_state: Arc<AppState>,
 7546    cx: &mut App,
 7547) -> Task<Result<()>> {
 7548    let windows = cx.windows();
 7549    cx.spawn(async move |cx| {
 7550        let existing_workspace = windows.into_iter().find_map(|window_handle| {
 7551            window_handle
 7552                .downcast::<Workspace>()
 7553                .and_then(|window_handle| {
 7554                    window_handle
 7555                        .update(cx, |workspace, _window, cx| {
 7556                            if workspace.project().read(cx).remote_id() == Some(project_id) {
 7557                                Some(window_handle)
 7558                            } else {
 7559                                None
 7560                            }
 7561                        })
 7562                        .unwrap_or(None)
 7563                })
 7564        });
 7565
 7566        let workspace = if let Some(existing_workspace) = existing_workspace {
 7567            existing_workspace
 7568        } else {
 7569            let active_call = cx.update(|cx| ActiveCall::global(cx))?;
 7570            let room = active_call
 7571                .read_with(cx, |call, _| call.room().cloned())?
 7572                .context("not in a call")?;
 7573            let project = room
 7574                .update(cx, |room, cx| {
 7575                    room.join_project(
 7576                        project_id,
 7577                        app_state.languages.clone(),
 7578                        app_state.fs.clone(),
 7579                        cx,
 7580                    )
 7581                })?
 7582                .await?;
 7583
 7584            let window_bounds_override = window_bounds_env_override();
 7585            cx.update(|cx| {
 7586                let mut options = (app_state.build_window_options)(None, cx);
 7587                options.window_bounds = window_bounds_override.map(WindowBounds::Windowed);
 7588                cx.open_window(options, |window, cx| {
 7589                    cx.new(|cx| {
 7590                        Workspace::new(Default::default(), project, app_state.clone(), window, cx)
 7591                    })
 7592                })
 7593            })??
 7594        };
 7595
 7596        workspace.update(cx, |workspace, window, cx| {
 7597            cx.activate(true);
 7598            window.activate_window();
 7599
 7600            if let Some(room) = ActiveCall::global(cx).read(cx).room().cloned() {
 7601                let follow_peer_id = room
 7602                    .read(cx)
 7603                    .remote_participants()
 7604                    .iter()
 7605                    .find(|(_, participant)| participant.user.id == follow_user_id)
 7606                    .map(|(_, p)| p.peer_id)
 7607                    .or_else(|| {
 7608                        // If we couldn't follow the given user, follow the host instead.
 7609                        let collaborator = workspace
 7610                            .project()
 7611                            .read(cx)
 7612                            .collaborators()
 7613                            .values()
 7614                            .find(|collaborator| collaborator.is_host)?;
 7615                        Some(collaborator.peer_id)
 7616                    });
 7617
 7618                if let Some(follow_peer_id) = follow_peer_id {
 7619                    workspace.follow(follow_peer_id, window, cx);
 7620                }
 7621            }
 7622        })?;
 7623
 7624        anyhow::Ok(())
 7625    })
 7626}
 7627
 7628pub fn reload(cx: &mut App) {
 7629    let should_confirm = WorkspaceSettings::get_global(cx).confirm_quit;
 7630    let mut workspace_windows = cx
 7631        .windows()
 7632        .into_iter()
 7633        .filter_map(|window| window.downcast::<Workspace>())
 7634        .collect::<Vec<_>>();
 7635
 7636    // If multiple windows have unsaved changes, and need a save prompt,
 7637    // prompt in the active window before switching to a different window.
 7638    workspace_windows.sort_by_key(|window| window.is_active(cx) == Some(false));
 7639
 7640    let mut prompt = None;
 7641    if let (true, Some(window)) = (should_confirm, workspace_windows.first()) {
 7642        prompt = window
 7643            .update(cx, |_, window, cx| {
 7644                window.prompt(
 7645                    PromptLevel::Info,
 7646                    "Are you sure you want to restart?",
 7647                    None,
 7648                    &["Restart", "Cancel"],
 7649                    cx,
 7650                )
 7651            })
 7652            .ok();
 7653    }
 7654
 7655    cx.spawn(async move |cx| {
 7656        if let Some(prompt) = prompt {
 7657            let answer = prompt.await?;
 7658            if answer != 0 {
 7659                return Ok(());
 7660            }
 7661        }
 7662
 7663        // If the user cancels any save prompt, then keep the app open.
 7664        for window in workspace_windows {
 7665            if let Ok(should_close) = window.update(cx, |workspace, window, cx| {
 7666                workspace.prepare_to_close(CloseIntent::Quit, window, cx)
 7667            }) {
 7668                if !should_close.await? {
 7669                    return Ok(());
 7670                }
 7671            }
 7672        }
 7673        cx.update(|cx| cx.restart())
 7674    })
 7675    .detach_and_log_err(cx);
 7676}
 7677
 7678fn parse_pixel_position_env_var(value: &str) -> Option<Point<Pixels>> {
 7679    let mut parts = value.split(',');
 7680    let x: usize = parts.next()?.parse().ok()?;
 7681    let y: usize = parts.next()?.parse().ok()?;
 7682    Some(point(px(x as f32), px(y as f32)))
 7683}
 7684
 7685fn parse_pixel_size_env_var(value: &str) -> Option<Size<Pixels>> {
 7686    let mut parts = value.split(',');
 7687    let width: usize = parts.next()?.parse().ok()?;
 7688    let height: usize = parts.next()?.parse().ok()?;
 7689    Some(size(px(width as f32), px(height as f32)))
 7690}
 7691
 7692/// Add client-side decorations (rounded corners, shadows, resize handling) when appropriate.
 7693pub fn client_side_decorations(
 7694    element: impl IntoElement,
 7695    window: &mut Window,
 7696    cx: &mut App,
 7697) -> Stateful<Div> {
 7698    const BORDER_SIZE: Pixels = px(1.0);
 7699    let decorations = window.window_decorations();
 7700
 7701    match decorations {
 7702        Decorations::Client { .. } => window.set_client_inset(theme::CLIENT_SIDE_DECORATION_SHADOW),
 7703        Decorations::Server { .. } => window.set_client_inset(px(0.0)),
 7704    }
 7705
 7706    struct GlobalResizeEdge(ResizeEdge);
 7707    impl Global for GlobalResizeEdge {}
 7708
 7709    div()
 7710        .id("window-backdrop")
 7711        .bg(transparent_black())
 7712        .map(|div| match decorations {
 7713            Decorations::Server => div,
 7714            Decorations::Client { tiling, .. } => div
 7715                .when(!(tiling.top || tiling.right), |div| {
 7716                    div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7717                })
 7718                .when(!(tiling.top || tiling.left), |div| {
 7719                    div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7720                })
 7721                .when(!(tiling.bottom || tiling.right), |div| {
 7722                    div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7723                })
 7724                .when(!(tiling.bottom || tiling.left), |div| {
 7725                    div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7726                })
 7727                .when(!tiling.top, |div| {
 7728                    div.pt(theme::CLIENT_SIDE_DECORATION_SHADOW)
 7729                })
 7730                .when(!tiling.bottom, |div| {
 7731                    div.pb(theme::CLIENT_SIDE_DECORATION_SHADOW)
 7732                })
 7733                .when(!tiling.left, |div| {
 7734                    div.pl(theme::CLIENT_SIDE_DECORATION_SHADOW)
 7735                })
 7736                .when(!tiling.right, |div| {
 7737                    div.pr(theme::CLIENT_SIDE_DECORATION_SHADOW)
 7738                })
 7739                .on_mouse_move(move |e, window, cx| {
 7740                    let size = window.window_bounds().get_bounds().size;
 7741                    let pos = e.position;
 7742
 7743                    let new_edge =
 7744                        resize_edge(pos, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling);
 7745
 7746                    let edge = cx.try_global::<GlobalResizeEdge>();
 7747                    if new_edge != edge.map(|edge| edge.0) {
 7748                        window
 7749                            .window_handle()
 7750                            .update(cx, |workspace, _, cx| {
 7751                                cx.notify(workspace.entity_id());
 7752                            })
 7753                            .ok();
 7754                    }
 7755                })
 7756                .on_mouse_down(MouseButton::Left, move |e, window, _| {
 7757                    let size = window.window_bounds().get_bounds().size;
 7758                    let pos = e.position;
 7759
 7760                    let edge = match resize_edge(
 7761                        pos,
 7762                        theme::CLIENT_SIDE_DECORATION_SHADOW,
 7763                        size,
 7764                        tiling,
 7765                    ) {
 7766                        Some(value) => value,
 7767                        None => return,
 7768                    };
 7769
 7770                    window.start_window_resize(edge);
 7771                }),
 7772        })
 7773        .size_full()
 7774        .child(
 7775            div()
 7776                .cursor(CursorStyle::Arrow)
 7777                .map(|div| match decorations {
 7778                    Decorations::Server => div,
 7779                    Decorations::Client { tiling } => div
 7780                        .border_color(cx.theme().colors().border)
 7781                        .when(!(tiling.top || tiling.right), |div| {
 7782                            div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7783                        })
 7784                        .when(!(tiling.top || tiling.left), |div| {
 7785                            div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7786                        })
 7787                        .when(!(tiling.bottom || tiling.right), |div| {
 7788                            div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7789                        })
 7790                        .when(!(tiling.bottom || tiling.left), |div| {
 7791                            div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 7792                        })
 7793                        .when(!tiling.top, |div| div.border_t(BORDER_SIZE))
 7794                        .when(!tiling.bottom, |div| div.border_b(BORDER_SIZE))
 7795                        .when(!tiling.left, |div| div.border_l(BORDER_SIZE))
 7796                        .when(!tiling.right, |div| div.border_r(BORDER_SIZE))
 7797                        .when(!tiling.is_tiled(), |div| {
 7798                            div.shadow(vec![gpui::BoxShadow {
 7799                                color: Hsla {
 7800                                    h: 0.,
 7801                                    s: 0.,
 7802                                    l: 0.,
 7803                                    a: 0.4,
 7804                                },
 7805                                blur_radius: theme::CLIENT_SIDE_DECORATION_SHADOW / 2.,
 7806                                spread_radius: px(0.),
 7807                                offset: point(px(0.0), px(0.0)),
 7808                            }])
 7809                        }),
 7810                })
 7811                .on_mouse_move(|_e, _, cx| {
 7812                    cx.stop_propagation();
 7813                })
 7814                .size_full()
 7815                .child(element),
 7816        )
 7817        .map(|div| match decorations {
 7818            Decorations::Server => div,
 7819            Decorations::Client { tiling, .. } => div.child(
 7820                canvas(
 7821                    |_bounds, window, _| {
 7822                        window.insert_hitbox(
 7823                            Bounds::new(
 7824                                point(px(0.0), px(0.0)),
 7825                                window.window_bounds().get_bounds().size,
 7826                            ),
 7827                            HitboxBehavior::Normal,
 7828                        )
 7829                    },
 7830                    move |_bounds, hitbox, window, cx| {
 7831                        let mouse = window.mouse_position();
 7832                        let size = window.window_bounds().get_bounds().size;
 7833                        let Some(edge) =
 7834                            resize_edge(mouse, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling)
 7835                        else {
 7836                            return;
 7837                        };
 7838                        cx.set_global(GlobalResizeEdge(edge));
 7839                        window.set_cursor_style(
 7840                            match edge {
 7841                                ResizeEdge::Top | ResizeEdge::Bottom => CursorStyle::ResizeUpDown,
 7842                                ResizeEdge::Left | ResizeEdge::Right => {
 7843                                    CursorStyle::ResizeLeftRight
 7844                                }
 7845                                ResizeEdge::TopLeft | ResizeEdge::BottomRight => {
 7846                                    CursorStyle::ResizeUpLeftDownRight
 7847                                }
 7848                                ResizeEdge::TopRight | ResizeEdge::BottomLeft => {
 7849                                    CursorStyle::ResizeUpRightDownLeft
 7850                                }
 7851                            },
 7852                            &hitbox,
 7853                        );
 7854                    },
 7855                )
 7856                .size_full()
 7857                .absolute(),
 7858            ),
 7859        })
 7860}
 7861
 7862fn resize_edge(
 7863    pos: Point<Pixels>,
 7864    shadow_size: Pixels,
 7865    window_size: Size<Pixels>,
 7866    tiling: Tiling,
 7867) -> Option<ResizeEdge> {
 7868    let bounds = Bounds::new(Point::default(), window_size).inset(shadow_size * 1.5);
 7869    if bounds.contains(&pos) {
 7870        return None;
 7871    }
 7872
 7873    let corner_size = size(shadow_size * 1.5, shadow_size * 1.5);
 7874    let top_left_bounds = Bounds::new(Point::new(px(0.), px(0.)), corner_size);
 7875    if !tiling.top && top_left_bounds.contains(&pos) {
 7876        return Some(ResizeEdge::TopLeft);
 7877    }
 7878
 7879    let top_right_bounds = Bounds::new(
 7880        Point::new(window_size.width - corner_size.width, px(0.)),
 7881        corner_size,
 7882    );
 7883    if !tiling.top && top_right_bounds.contains(&pos) {
 7884        return Some(ResizeEdge::TopRight);
 7885    }
 7886
 7887    let bottom_left_bounds = Bounds::new(
 7888        Point::new(px(0.), window_size.height - corner_size.height),
 7889        corner_size,
 7890    );
 7891    if !tiling.bottom && bottom_left_bounds.contains(&pos) {
 7892        return Some(ResizeEdge::BottomLeft);
 7893    }
 7894
 7895    let bottom_right_bounds = Bounds::new(
 7896        Point::new(
 7897            window_size.width - corner_size.width,
 7898            window_size.height - corner_size.height,
 7899        ),
 7900        corner_size,
 7901    );
 7902    if !tiling.bottom && bottom_right_bounds.contains(&pos) {
 7903        return Some(ResizeEdge::BottomRight);
 7904    }
 7905
 7906    if !tiling.top && pos.y < shadow_size {
 7907        Some(ResizeEdge::Top)
 7908    } else if !tiling.bottom && pos.y > window_size.height - shadow_size {
 7909        Some(ResizeEdge::Bottom)
 7910    } else if !tiling.left && pos.x < shadow_size {
 7911        Some(ResizeEdge::Left)
 7912    } else if !tiling.right && pos.x > window_size.width - shadow_size {
 7913        Some(ResizeEdge::Right)
 7914    } else {
 7915        None
 7916    }
 7917}
 7918
 7919fn join_pane_into_active(
 7920    active_pane: &Entity<Pane>,
 7921    pane: &Entity<Pane>,
 7922    window: &mut Window,
 7923    cx: &mut App,
 7924) {
 7925    if pane == active_pane {
 7926        return;
 7927    } else if pane.read(cx).items_len() == 0 {
 7928        pane.update(cx, |_, cx| {
 7929            cx.emit(pane::Event::Remove {
 7930                focus_on_pane: None,
 7931            });
 7932        })
 7933    } else {
 7934        move_all_items(pane, active_pane, window, cx);
 7935    }
 7936}
 7937
 7938fn move_all_items(
 7939    from_pane: &Entity<Pane>,
 7940    to_pane: &Entity<Pane>,
 7941    window: &mut Window,
 7942    cx: &mut App,
 7943) {
 7944    let destination_is_different = from_pane != to_pane;
 7945    let mut moved_items = 0;
 7946    for (item_ix, item_handle) in from_pane
 7947        .read(cx)
 7948        .items()
 7949        .enumerate()
 7950        .map(|(ix, item)| (ix, item.clone()))
 7951        .collect::<Vec<_>>()
 7952    {
 7953        let ix = item_ix - moved_items;
 7954        if destination_is_different {
 7955            // Close item from previous pane
 7956            from_pane.update(cx, |source, cx| {
 7957                source.remove_item_and_focus_on_pane(ix, false, to_pane.clone(), window, cx);
 7958            });
 7959            moved_items += 1;
 7960        }
 7961
 7962        // This automatically removes duplicate items in the pane
 7963        to_pane.update(cx, |destination, cx| {
 7964            destination.add_item(item_handle, true, true, None, window, cx);
 7965            window.focus(&destination.focus_handle(cx))
 7966        });
 7967    }
 7968}
 7969
 7970pub fn move_item(
 7971    source: &Entity<Pane>,
 7972    destination: &Entity<Pane>,
 7973    item_id_to_move: EntityId,
 7974    destination_index: usize,
 7975    activate: bool,
 7976    window: &mut Window,
 7977    cx: &mut App,
 7978) {
 7979    let Some((item_ix, item_handle)) = source
 7980        .read(cx)
 7981        .items()
 7982        .enumerate()
 7983        .find(|(_, item_handle)| item_handle.item_id() == item_id_to_move)
 7984        .map(|(ix, item)| (ix, item.clone()))
 7985    else {
 7986        // Tab was closed during drag
 7987        return;
 7988    };
 7989
 7990    if source != destination {
 7991        // Close item from previous pane
 7992        source.update(cx, |source, cx| {
 7993            source.remove_item_and_focus_on_pane(item_ix, false, destination.clone(), window, cx);
 7994        });
 7995    }
 7996
 7997    // This automatically removes duplicate items in the pane
 7998    destination.update(cx, |destination, cx| {
 7999        destination.add_item_inner(
 8000            item_handle,
 8001            activate,
 8002            activate,
 8003            activate,
 8004            Some(destination_index),
 8005            window,
 8006            cx,
 8007        );
 8008        if activate {
 8009            window.focus(&destination.focus_handle(cx))
 8010        }
 8011    });
 8012}
 8013
 8014pub fn move_active_item(
 8015    source: &Entity<Pane>,
 8016    destination: &Entity<Pane>,
 8017    focus_destination: bool,
 8018    close_if_empty: bool,
 8019    window: &mut Window,
 8020    cx: &mut App,
 8021) {
 8022    if source == destination {
 8023        return;
 8024    }
 8025    let Some(active_item) = source.read(cx).active_item() else {
 8026        return;
 8027    };
 8028    source.update(cx, |source_pane, cx| {
 8029        let item_id = active_item.item_id();
 8030        source_pane.remove_item(item_id, false, close_if_empty, window, cx);
 8031        destination.update(cx, |target_pane, cx| {
 8032            target_pane.add_item(
 8033                active_item,
 8034                focus_destination,
 8035                focus_destination,
 8036                Some(target_pane.items_len()),
 8037                window,
 8038                cx,
 8039            );
 8040        });
 8041    });
 8042}
 8043
 8044pub fn clone_active_item(
 8045    workspace_id: Option<WorkspaceId>,
 8046    source: &Entity<Pane>,
 8047    destination: &Entity<Pane>,
 8048    focus_destination: bool,
 8049    window: &mut Window,
 8050    cx: &mut App,
 8051) {
 8052    if source == destination {
 8053        return;
 8054    }
 8055    let Some(active_item) = source.read(cx).active_item() else {
 8056        return;
 8057    };
 8058    destination.update(cx, |target_pane, cx| {
 8059        let Some(clone) = active_item.clone_on_split(workspace_id, window, cx) else {
 8060            return;
 8061        };
 8062        target_pane.add_item(
 8063            clone,
 8064            focus_destination,
 8065            focus_destination,
 8066            Some(target_pane.items_len()),
 8067            window,
 8068            cx,
 8069        );
 8070    });
 8071}
 8072
 8073#[derive(Debug)]
 8074pub struct WorkspacePosition {
 8075    pub window_bounds: Option<WindowBounds>,
 8076    pub display: Option<Uuid>,
 8077    pub centered_layout: bool,
 8078}
 8079
 8080pub fn ssh_workspace_position_from_db(
 8081    host: String,
 8082    port: Option<u16>,
 8083    user: Option<String>,
 8084    paths_to_open: &[PathBuf],
 8085    cx: &App,
 8086) -> Task<Result<WorkspacePosition>> {
 8087    let paths = paths_to_open
 8088        .iter()
 8089        .map(|path| path.to_string_lossy().to_string())
 8090        .collect::<Vec<_>>();
 8091
 8092    cx.background_spawn(async move {
 8093        let serialized_ssh_project = persistence::DB
 8094            .get_or_create_ssh_project(host, port, paths, user)
 8095            .await
 8096            .context("fetching serialized ssh project")?;
 8097        let serialized_workspace =
 8098            persistence::DB.workspace_for_ssh_project(&serialized_ssh_project);
 8099
 8100        let (window_bounds, display) = if let Some(bounds) = window_bounds_env_override() {
 8101            (Some(WindowBounds::Windowed(bounds)), None)
 8102        } else {
 8103            let restorable_bounds = serialized_workspace
 8104                .as_ref()
 8105                .and_then(|workspace| Some((workspace.display?, workspace.window_bounds?)))
 8106                .or_else(|| {
 8107                    let (display, window_bounds) = DB.last_window().log_err()?;
 8108                    Some((display?, window_bounds?))
 8109                });
 8110
 8111            if let Some((serialized_display, serialized_status)) = restorable_bounds {
 8112                (Some(serialized_status.0), Some(serialized_display))
 8113            } else {
 8114                (None, None)
 8115            }
 8116        };
 8117
 8118        let centered_layout = serialized_workspace
 8119            .as_ref()
 8120            .map(|w| w.centered_layout)
 8121            .unwrap_or(false);
 8122
 8123        Ok(WorkspacePosition {
 8124            window_bounds,
 8125            display,
 8126            centered_layout,
 8127        })
 8128    })
 8129}
 8130
 8131pub fn with_active_or_new_workspace(
 8132    cx: &mut App,
 8133    f: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send + 'static,
 8134) {
 8135    match cx.active_window().and_then(|w| w.downcast::<Workspace>()) {
 8136        Some(workspace) => {
 8137            cx.defer(move |cx| {
 8138                workspace
 8139                    .update(cx, |workspace, window, cx| f(workspace, window, cx))
 8140                    .log_err();
 8141            });
 8142        }
 8143        None => {
 8144            let app_state = AppState::global(cx);
 8145            if let Some(app_state) = app_state.upgrade() {
 8146                open_new(
 8147                    OpenOptions::default(),
 8148                    app_state,
 8149                    cx,
 8150                    move |workspace, window, cx| f(workspace, window, cx),
 8151                )
 8152                .detach_and_log_err(cx);
 8153            }
 8154        }
 8155    }
 8156}
 8157
 8158#[cfg(test)]
 8159mod tests {
 8160    use std::{cell::RefCell, rc::Rc};
 8161
 8162    use super::*;
 8163    use crate::{
 8164        dock::{PanelEvent, test::TestPanel},
 8165        item::{
 8166            ItemEvent,
 8167            test::{TestItem, TestProjectItem},
 8168        },
 8169    };
 8170    use fs::FakeFs;
 8171    use gpui::{
 8172        DismissEvent, Empty, EventEmitter, FocusHandle, Focusable, Render, TestAppContext,
 8173        UpdateGlobal, VisualTestContext, px,
 8174    };
 8175    use project::{Project, ProjectEntryId};
 8176    use serde_json::json;
 8177    use settings::SettingsStore;
 8178
 8179    #[gpui::test]
 8180    async fn test_tab_disambiguation(cx: &mut TestAppContext) {
 8181        init_test(cx);
 8182
 8183        let fs = FakeFs::new(cx.executor());
 8184        let project = Project::test(fs, [], cx).await;
 8185        let (workspace, cx) =
 8186            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8187
 8188        // Adding an item with no ambiguity renders the tab without detail.
 8189        let item1 = cx.new(|cx| {
 8190            let mut item = TestItem::new(cx);
 8191            item.tab_descriptions = Some(vec!["c", "b1/c", "a/b1/c"]);
 8192            item
 8193        });
 8194        workspace.update_in(cx, |workspace, window, cx| {
 8195            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 8196        });
 8197        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(0)));
 8198
 8199        // Adding an item that creates ambiguity increases the level of detail on
 8200        // both tabs.
 8201        let item2 = cx.new_window_entity(|_window, cx| {
 8202            let mut item = TestItem::new(cx);
 8203            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 8204            item
 8205        });
 8206        workspace.update_in(cx, |workspace, window, cx| {
 8207            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 8208        });
 8209        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 8210        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 8211
 8212        // Adding an item that creates ambiguity increases the level of detail only
 8213        // on the ambiguous tabs. In this case, the ambiguity can't be resolved so
 8214        // we stop at the highest detail available.
 8215        let item3 = cx.new(|cx| {
 8216            let mut item = TestItem::new(cx);
 8217            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 8218            item
 8219        });
 8220        workspace.update_in(cx, |workspace, window, cx| {
 8221            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 8222        });
 8223        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 8224        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 8225        item3.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 8226    }
 8227
 8228    #[gpui::test]
 8229    async fn test_tracking_active_path(cx: &mut TestAppContext) {
 8230        init_test(cx);
 8231
 8232        let fs = FakeFs::new(cx.executor());
 8233        fs.insert_tree(
 8234            "/root1",
 8235            json!({
 8236                "one.txt": "",
 8237                "two.txt": "",
 8238            }),
 8239        )
 8240        .await;
 8241        fs.insert_tree(
 8242            "/root2",
 8243            json!({
 8244                "three.txt": "",
 8245            }),
 8246        )
 8247        .await;
 8248
 8249        let project = Project::test(fs, ["root1".as_ref()], cx).await;
 8250        let (workspace, cx) =
 8251            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8252        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 8253        let worktree_id = project.update(cx, |project, cx| {
 8254            project.worktrees(cx).next().unwrap().read(cx).id()
 8255        });
 8256
 8257        let item1 = cx.new(|cx| {
 8258            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
 8259        });
 8260        let item2 = cx.new(|cx| {
 8261            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "two.txt", cx)])
 8262        });
 8263
 8264        // Add an item to an empty pane
 8265        workspace.update_in(cx, |workspace, window, cx| {
 8266            workspace.add_item_to_active_pane(Box::new(item1), None, true, window, cx)
 8267        });
 8268        project.update(cx, |project, cx| {
 8269            assert_eq!(
 8270                project.active_entry(),
 8271                project
 8272                    .entry_for_path(&(worktree_id, "one.txt").into(), cx)
 8273                    .map(|e| e.id)
 8274            );
 8275        });
 8276        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 8277
 8278        // Add a second item to a non-empty pane
 8279        workspace.update_in(cx, |workspace, window, cx| {
 8280            workspace.add_item_to_active_pane(Box::new(item2), None, true, window, cx)
 8281        });
 8282        assert_eq!(cx.window_title().as_deref(), Some("root1 — two.txt"));
 8283        project.update(cx, |project, cx| {
 8284            assert_eq!(
 8285                project.active_entry(),
 8286                project
 8287                    .entry_for_path(&(worktree_id, "two.txt").into(), cx)
 8288                    .map(|e| e.id)
 8289            );
 8290        });
 8291
 8292        // Close the active item
 8293        pane.update_in(cx, |pane, window, cx| {
 8294            pane.close_active_item(&Default::default(), window, cx)
 8295        })
 8296        .await
 8297        .unwrap();
 8298        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 8299        project.update(cx, |project, cx| {
 8300            assert_eq!(
 8301                project.active_entry(),
 8302                project
 8303                    .entry_for_path(&(worktree_id, "one.txt").into(), cx)
 8304                    .map(|e| e.id)
 8305            );
 8306        });
 8307
 8308        // Add a project folder
 8309        project
 8310            .update(cx, |project, cx| {
 8311                project.find_or_create_worktree("root2", true, cx)
 8312            })
 8313            .await
 8314            .unwrap();
 8315        assert_eq!(cx.window_title().as_deref(), Some("root1, root2 — one.txt"));
 8316
 8317        // Remove a project folder
 8318        project.update(cx, |project, cx| project.remove_worktree(worktree_id, cx));
 8319        assert_eq!(cx.window_title().as_deref(), Some("root2 — one.txt"));
 8320    }
 8321
 8322    #[gpui::test]
 8323    async fn test_close_window(cx: &mut TestAppContext) {
 8324        init_test(cx);
 8325
 8326        let fs = FakeFs::new(cx.executor());
 8327        fs.insert_tree("/root", json!({ "one": "" })).await;
 8328
 8329        let project = Project::test(fs, ["root".as_ref()], cx).await;
 8330        let (workspace, cx) =
 8331            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8332
 8333        // When there are no dirty items, there's nothing to do.
 8334        let item1 = cx.new(TestItem::new);
 8335        workspace.update_in(cx, |w, window, cx| {
 8336            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx)
 8337        });
 8338        let task = workspace.update_in(cx, |w, window, cx| {
 8339            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 8340        });
 8341        assert!(task.await.unwrap());
 8342
 8343        // When there are dirty untitled items, prompt to save each one. If the user
 8344        // cancels any prompt, then abort.
 8345        let item2 = cx.new(|cx| TestItem::new(cx).with_dirty(true));
 8346        let item3 = cx.new(|cx| {
 8347            TestItem::new(cx)
 8348                .with_dirty(true)
 8349                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 8350        });
 8351        workspace.update_in(cx, |w, window, cx| {
 8352            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 8353            w.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 8354        });
 8355        let task = workspace.update_in(cx, |w, window, cx| {
 8356            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 8357        });
 8358        cx.executor().run_until_parked();
 8359        cx.simulate_prompt_answer("Cancel"); // cancel save all
 8360        cx.executor().run_until_parked();
 8361        assert!(!cx.has_pending_prompt());
 8362        assert!(!task.await.unwrap());
 8363    }
 8364
 8365    #[gpui::test]
 8366    async fn test_close_window_with_serializable_items(cx: &mut TestAppContext) {
 8367        init_test(cx);
 8368
 8369        // Register TestItem as a serializable item
 8370        cx.update(|cx| {
 8371            register_serializable_item::<TestItem>(cx);
 8372        });
 8373
 8374        let fs = FakeFs::new(cx.executor());
 8375        fs.insert_tree("/root", json!({ "one": "" })).await;
 8376
 8377        let project = Project::test(fs, ["root".as_ref()], cx).await;
 8378        let (workspace, cx) =
 8379            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8380
 8381        // When there are dirty untitled items, but they can serialize, then there is no prompt.
 8382        let item1 = cx.new(|cx| {
 8383            TestItem::new(cx)
 8384                .with_dirty(true)
 8385                .with_serialize(|| Some(Task::ready(Ok(()))))
 8386        });
 8387        let item2 = cx.new(|cx| {
 8388            TestItem::new(cx)
 8389                .with_dirty(true)
 8390                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 8391                .with_serialize(|| Some(Task::ready(Ok(()))))
 8392        });
 8393        workspace.update_in(cx, |w, window, cx| {
 8394            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 8395            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 8396        });
 8397        let task = workspace.update_in(cx, |w, window, cx| {
 8398            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 8399        });
 8400        assert!(task.await.unwrap());
 8401    }
 8402
 8403    #[gpui::test]
 8404    async fn test_close_pane_items(cx: &mut TestAppContext) {
 8405        init_test(cx);
 8406
 8407        let fs = FakeFs::new(cx.executor());
 8408
 8409        let project = Project::test(fs, None, cx).await;
 8410        let (workspace, cx) =
 8411            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8412
 8413        let item1 = cx.new(|cx| {
 8414            TestItem::new(cx)
 8415                .with_dirty(true)
 8416                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
 8417        });
 8418        let item2 = cx.new(|cx| {
 8419            TestItem::new(cx)
 8420                .with_dirty(true)
 8421                .with_conflict(true)
 8422                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
 8423        });
 8424        let item3 = cx.new(|cx| {
 8425            TestItem::new(cx)
 8426                .with_dirty(true)
 8427                .with_conflict(true)
 8428                .with_project_items(&[dirty_project_item(3, "3.txt", cx)])
 8429        });
 8430        let item4 = cx.new(|cx| {
 8431            TestItem::new(cx).with_dirty(true).with_project_items(&[{
 8432                let project_item = TestProjectItem::new_untitled(cx);
 8433                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 8434                project_item
 8435            }])
 8436        });
 8437        let pane = workspace.update_in(cx, |workspace, window, cx| {
 8438            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 8439            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 8440            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 8441            workspace.add_item_to_active_pane(Box::new(item4.clone()), None, true, window, cx);
 8442            workspace.active_pane().clone()
 8443        });
 8444
 8445        let close_items = pane.update_in(cx, |pane, window, cx| {
 8446            pane.activate_item(1, true, true, window, cx);
 8447            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 8448            let item1_id = item1.item_id();
 8449            let item3_id = item3.item_id();
 8450            let item4_id = item4.item_id();
 8451            pane.close_items(window, cx, SaveIntent::Close, move |id| {
 8452                [item1_id, item3_id, item4_id].contains(&id)
 8453            })
 8454        });
 8455        cx.executor().run_until_parked();
 8456
 8457        assert!(cx.has_pending_prompt());
 8458        cx.simulate_prompt_answer("Save all");
 8459
 8460        cx.executor().run_until_parked();
 8461
 8462        // Item 1 is saved. There's a prompt to save item 3.
 8463        pane.update(cx, |pane, cx| {
 8464            assert_eq!(item1.read(cx).save_count, 1);
 8465            assert_eq!(item1.read(cx).save_as_count, 0);
 8466            assert_eq!(item1.read(cx).reload_count, 0);
 8467            assert_eq!(pane.items_len(), 3);
 8468            assert_eq!(pane.active_item().unwrap().item_id(), item3.item_id());
 8469        });
 8470        assert!(cx.has_pending_prompt());
 8471
 8472        // Cancel saving item 3.
 8473        cx.simulate_prompt_answer("Discard");
 8474        cx.executor().run_until_parked();
 8475
 8476        // Item 3 is reloaded. There's a prompt to save item 4.
 8477        pane.update(cx, |pane, cx| {
 8478            assert_eq!(item3.read(cx).save_count, 0);
 8479            assert_eq!(item3.read(cx).save_as_count, 0);
 8480            assert_eq!(item3.read(cx).reload_count, 1);
 8481            assert_eq!(pane.items_len(), 2);
 8482            assert_eq!(pane.active_item().unwrap().item_id(), item4.item_id());
 8483        });
 8484
 8485        // There's a prompt for a path for item 4.
 8486        cx.simulate_new_path_selection(|_| Some(Default::default()));
 8487        close_items.await.unwrap();
 8488
 8489        // The requested items are closed.
 8490        pane.update(cx, |pane, cx| {
 8491            assert_eq!(item4.read(cx).save_count, 0);
 8492            assert_eq!(item4.read(cx).save_as_count, 1);
 8493            assert_eq!(item4.read(cx).reload_count, 0);
 8494            assert_eq!(pane.items_len(), 1);
 8495            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 8496        });
 8497    }
 8498
 8499    #[gpui::test]
 8500    async fn test_prompting_to_save_only_on_last_item_for_entry(cx: &mut TestAppContext) {
 8501        init_test(cx);
 8502
 8503        let fs = FakeFs::new(cx.executor());
 8504        let project = Project::test(fs, [], cx).await;
 8505        let (workspace, cx) =
 8506            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8507
 8508        // Create several workspace items with single project entries, and two
 8509        // workspace items with multiple project entries.
 8510        let single_entry_items = (0..=4)
 8511            .map(|project_entry_id| {
 8512                cx.new(|cx| {
 8513                    TestItem::new(cx)
 8514                        .with_dirty(true)
 8515                        .with_project_items(&[dirty_project_item(
 8516                            project_entry_id,
 8517                            &format!("{project_entry_id}.txt"),
 8518                            cx,
 8519                        )])
 8520                })
 8521            })
 8522            .collect::<Vec<_>>();
 8523        let item_2_3 = cx.new(|cx| {
 8524            TestItem::new(cx)
 8525                .with_dirty(true)
 8526                .with_singleton(false)
 8527                .with_project_items(&[
 8528                    single_entry_items[2].read(cx).project_items[0].clone(),
 8529                    single_entry_items[3].read(cx).project_items[0].clone(),
 8530                ])
 8531        });
 8532        let item_3_4 = cx.new(|cx| {
 8533            TestItem::new(cx)
 8534                .with_dirty(true)
 8535                .with_singleton(false)
 8536                .with_project_items(&[
 8537                    single_entry_items[3].read(cx).project_items[0].clone(),
 8538                    single_entry_items[4].read(cx).project_items[0].clone(),
 8539                ])
 8540        });
 8541
 8542        // Create two panes that contain the following project entries:
 8543        //   left pane:
 8544        //     multi-entry items:   (2, 3)
 8545        //     single-entry items:  0, 2, 3, 4
 8546        //   right pane:
 8547        //     single-entry items:  4, 1
 8548        //     multi-entry items:   (3, 4)
 8549        let (left_pane, right_pane) = workspace.update_in(cx, |workspace, window, cx| {
 8550            let left_pane = workspace.active_pane().clone();
 8551            workspace.add_item_to_active_pane(Box::new(item_2_3.clone()), None, true, window, cx);
 8552            workspace.add_item_to_active_pane(
 8553                single_entry_items[0].boxed_clone(),
 8554                None,
 8555                true,
 8556                window,
 8557                cx,
 8558            );
 8559            workspace.add_item_to_active_pane(
 8560                single_entry_items[2].boxed_clone(),
 8561                None,
 8562                true,
 8563                window,
 8564                cx,
 8565            );
 8566            workspace.add_item_to_active_pane(
 8567                single_entry_items[3].boxed_clone(),
 8568                None,
 8569                true,
 8570                window,
 8571                cx,
 8572            );
 8573            workspace.add_item_to_active_pane(
 8574                single_entry_items[4].boxed_clone(),
 8575                None,
 8576                true,
 8577                window,
 8578                cx,
 8579            );
 8580
 8581            let right_pane = workspace
 8582                .split_and_clone(left_pane.clone(), SplitDirection::Right, window, cx)
 8583                .unwrap();
 8584
 8585            right_pane.update(cx, |pane, cx| {
 8586                pane.add_item(
 8587                    single_entry_items[1].boxed_clone(),
 8588                    true,
 8589                    true,
 8590                    None,
 8591                    window,
 8592                    cx,
 8593                );
 8594                pane.add_item(Box::new(item_3_4.clone()), true, true, None, window, cx);
 8595            });
 8596
 8597            (left_pane, right_pane)
 8598        });
 8599
 8600        cx.focus(&right_pane);
 8601
 8602        let mut close = right_pane.update_in(cx, |pane, window, cx| {
 8603            pane.close_all_items(&CloseAllItems::default(), window, cx)
 8604                .unwrap()
 8605        });
 8606        cx.executor().run_until_parked();
 8607
 8608        let msg = cx.pending_prompt().unwrap().0;
 8609        assert!(msg.contains("1.txt"));
 8610        assert!(!msg.contains("2.txt"));
 8611        assert!(!msg.contains("3.txt"));
 8612        assert!(!msg.contains("4.txt"));
 8613
 8614        cx.simulate_prompt_answer("Cancel");
 8615        close.await;
 8616
 8617        left_pane
 8618            .update_in(cx, |left_pane, window, cx| {
 8619                left_pane.close_item_by_id(
 8620                    single_entry_items[3].entity_id(),
 8621                    SaveIntent::Skip,
 8622                    window,
 8623                    cx,
 8624                )
 8625            })
 8626            .await
 8627            .unwrap();
 8628
 8629        close = right_pane.update_in(cx, |pane, window, cx| {
 8630            pane.close_all_items(&CloseAllItems::default(), window, cx)
 8631                .unwrap()
 8632        });
 8633        cx.executor().run_until_parked();
 8634
 8635        let details = cx.pending_prompt().unwrap().1;
 8636        assert!(details.contains("1.txt"));
 8637        assert!(!details.contains("2.txt"));
 8638        assert!(details.contains("3.txt"));
 8639        // ideally this assertion could be made, but today we can only
 8640        // save whole items not project items, so the orphaned item 3 causes
 8641        // 4 to be saved too.
 8642        // assert!(!details.contains("4.txt"));
 8643
 8644        cx.simulate_prompt_answer("Save all");
 8645
 8646        cx.executor().run_until_parked();
 8647        close.await;
 8648        right_pane.read_with(cx, |pane, _| {
 8649            assert_eq!(pane.items_len(), 0);
 8650        });
 8651    }
 8652
 8653    #[gpui::test]
 8654    async fn test_autosave(cx: &mut gpui::TestAppContext) {
 8655        init_test(cx);
 8656
 8657        let fs = FakeFs::new(cx.executor());
 8658        let project = Project::test(fs, [], cx).await;
 8659        let (workspace, cx) =
 8660            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8661        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 8662
 8663        let item = cx.new(|cx| {
 8664            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 8665        });
 8666        let item_id = item.entity_id();
 8667        workspace.update_in(cx, |workspace, window, cx| {
 8668            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 8669        });
 8670
 8671        // Autosave on window change.
 8672        item.update(cx, |item, cx| {
 8673            SettingsStore::update_global(cx, |settings, cx| {
 8674                settings.update_user_settings::<WorkspaceSettings>(cx, |settings| {
 8675                    settings.autosave = Some(AutosaveSetting::OnWindowChange);
 8676                })
 8677            });
 8678            item.is_dirty = true;
 8679        });
 8680
 8681        // Deactivating the window saves the file.
 8682        cx.deactivate_window();
 8683        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 8684
 8685        // Re-activating the window doesn't save the file.
 8686        cx.update(|window, _| window.activate_window());
 8687        cx.executor().run_until_parked();
 8688        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 8689
 8690        // Autosave on focus change.
 8691        item.update_in(cx, |item, window, cx| {
 8692            cx.focus_self(window);
 8693            SettingsStore::update_global(cx, |settings, cx| {
 8694                settings.update_user_settings::<WorkspaceSettings>(cx, |settings| {
 8695                    settings.autosave = Some(AutosaveSetting::OnFocusChange);
 8696                })
 8697            });
 8698            item.is_dirty = true;
 8699        });
 8700
 8701        // Blurring the item saves the file.
 8702        item.update_in(cx, |_, window, _| window.blur());
 8703        cx.executor().run_until_parked();
 8704        item.read_with(cx, |item, _| assert_eq!(item.save_count, 2));
 8705
 8706        // Deactivating the window still saves the file.
 8707        item.update_in(cx, |item, window, cx| {
 8708            cx.focus_self(window);
 8709            item.is_dirty = true;
 8710        });
 8711        cx.deactivate_window();
 8712        item.update(cx, |item, _| assert_eq!(item.save_count, 3));
 8713
 8714        // Autosave after delay.
 8715        item.update(cx, |item, cx| {
 8716            SettingsStore::update_global(cx, |settings, cx| {
 8717                settings.update_user_settings::<WorkspaceSettings>(cx, |settings| {
 8718                    settings.autosave = Some(AutosaveSetting::AfterDelay { milliseconds: 500 });
 8719                })
 8720            });
 8721            item.is_dirty = true;
 8722            cx.emit(ItemEvent::Edit);
 8723        });
 8724
 8725        // Delay hasn't fully expired, so the file is still dirty and unsaved.
 8726        cx.executor().advance_clock(Duration::from_millis(250));
 8727        item.read_with(cx, |item, _| assert_eq!(item.save_count, 3));
 8728
 8729        // After delay expires, the file is saved.
 8730        cx.executor().advance_clock(Duration::from_millis(250));
 8731        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
 8732
 8733        // Autosave on focus change, ensuring closing the tab counts as such.
 8734        item.update(cx, |item, cx| {
 8735            SettingsStore::update_global(cx, |settings, cx| {
 8736                settings.update_user_settings::<WorkspaceSettings>(cx, |settings| {
 8737                    settings.autosave = Some(AutosaveSetting::OnFocusChange);
 8738                })
 8739            });
 8740            item.is_dirty = true;
 8741            for project_item in &mut item.project_items {
 8742                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 8743            }
 8744        });
 8745
 8746        pane.update_in(cx, |pane, window, cx| {
 8747            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 8748        })
 8749        .await
 8750        .unwrap();
 8751        assert!(!cx.has_pending_prompt());
 8752        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 8753
 8754        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
 8755        workspace.update_in(cx, |workspace, window, cx| {
 8756            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 8757        });
 8758        item.update_in(cx, |item, window, cx| {
 8759            item.project_items[0].update(cx, |item, _| {
 8760                item.entry_id = None;
 8761            });
 8762            item.is_dirty = true;
 8763            window.blur();
 8764        });
 8765        cx.run_until_parked();
 8766        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 8767
 8768        // Ensure autosave is prevented for deleted files also when closing the buffer.
 8769        let _close_items = pane.update_in(cx, |pane, window, cx| {
 8770            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 8771        });
 8772        cx.run_until_parked();
 8773        assert!(cx.has_pending_prompt());
 8774        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 8775    }
 8776
 8777    #[gpui::test]
 8778    async fn test_pane_navigation(cx: &mut gpui::TestAppContext) {
 8779        init_test(cx);
 8780
 8781        let fs = FakeFs::new(cx.executor());
 8782
 8783        let project = Project::test(fs, [], cx).await;
 8784        let (workspace, cx) =
 8785            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8786
 8787        let item = cx.new(|cx| {
 8788            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 8789        });
 8790        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 8791        let toolbar = pane.read_with(cx, |pane, _| pane.toolbar().clone());
 8792        let toolbar_notify_count = Rc::new(RefCell::new(0));
 8793
 8794        workspace.update_in(cx, |workspace, window, cx| {
 8795            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 8796            let toolbar_notification_count = toolbar_notify_count.clone();
 8797            cx.observe_in(&toolbar, window, move |_, _, _, _| {
 8798                *toolbar_notification_count.borrow_mut() += 1
 8799            })
 8800            .detach();
 8801        });
 8802
 8803        pane.read_with(cx, |pane, _| {
 8804            assert!(!pane.can_navigate_backward());
 8805            assert!(!pane.can_navigate_forward());
 8806        });
 8807
 8808        item.update_in(cx, |item, _, cx| {
 8809            item.set_state("one".to_string(), cx);
 8810        });
 8811
 8812        // Toolbar must be notified to re-render the navigation buttons
 8813        assert_eq!(*toolbar_notify_count.borrow(), 1);
 8814
 8815        pane.read_with(cx, |pane, _| {
 8816            assert!(pane.can_navigate_backward());
 8817            assert!(!pane.can_navigate_forward());
 8818        });
 8819
 8820        workspace
 8821            .update_in(cx, |workspace, window, cx| {
 8822                workspace.go_back(pane.downgrade(), window, cx)
 8823            })
 8824            .await
 8825            .unwrap();
 8826
 8827        assert_eq!(*toolbar_notify_count.borrow(), 2);
 8828        pane.read_with(cx, |pane, _| {
 8829            assert!(!pane.can_navigate_backward());
 8830            assert!(pane.can_navigate_forward());
 8831        });
 8832    }
 8833
 8834    #[gpui::test]
 8835    async fn test_toggle_docks_and_panels(cx: &mut gpui::TestAppContext) {
 8836        init_test(cx);
 8837        let fs = FakeFs::new(cx.executor());
 8838
 8839        let project = Project::test(fs, [], cx).await;
 8840        let (workspace, cx) =
 8841            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8842
 8843        let panel = workspace.update_in(cx, |workspace, window, cx| {
 8844            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, cx));
 8845            workspace.add_panel(panel.clone(), window, cx);
 8846
 8847            workspace
 8848                .right_dock()
 8849                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
 8850
 8851            panel
 8852        });
 8853
 8854        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 8855        pane.update_in(cx, |pane, window, cx| {
 8856            let item = cx.new(TestItem::new);
 8857            pane.add_item(Box::new(item), true, true, None, window, cx);
 8858        });
 8859
 8860        // Transfer focus from center to panel
 8861        workspace.update_in(cx, |workspace, window, cx| {
 8862            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 8863        });
 8864
 8865        workspace.update_in(cx, |workspace, window, cx| {
 8866            assert!(workspace.right_dock().read(cx).is_open());
 8867            assert!(!panel.is_zoomed(window, cx));
 8868            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8869        });
 8870
 8871        // Transfer focus from panel to center
 8872        workspace.update_in(cx, |workspace, window, cx| {
 8873            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 8874        });
 8875
 8876        workspace.update_in(cx, |workspace, window, cx| {
 8877            assert!(workspace.right_dock().read(cx).is_open());
 8878            assert!(!panel.is_zoomed(window, cx));
 8879            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8880        });
 8881
 8882        // Close the dock
 8883        workspace.update_in(cx, |workspace, window, cx| {
 8884            workspace.toggle_dock(DockPosition::Right, window, cx);
 8885        });
 8886
 8887        workspace.update_in(cx, |workspace, window, cx| {
 8888            assert!(!workspace.right_dock().read(cx).is_open());
 8889            assert!(!panel.is_zoomed(window, cx));
 8890            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8891        });
 8892
 8893        // Open the dock
 8894        workspace.update_in(cx, |workspace, window, cx| {
 8895            workspace.toggle_dock(DockPosition::Right, window, cx);
 8896        });
 8897
 8898        workspace.update_in(cx, |workspace, window, cx| {
 8899            assert!(workspace.right_dock().read(cx).is_open());
 8900            assert!(!panel.is_zoomed(window, cx));
 8901            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8902        });
 8903
 8904        // Focus and zoom panel
 8905        panel.update_in(cx, |panel, window, cx| {
 8906            cx.focus_self(window);
 8907            panel.set_zoomed(true, window, cx)
 8908        });
 8909
 8910        workspace.update_in(cx, |workspace, window, cx| {
 8911            assert!(workspace.right_dock().read(cx).is_open());
 8912            assert!(panel.is_zoomed(window, cx));
 8913            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8914        });
 8915
 8916        // Transfer focus to the center closes the dock
 8917        workspace.update_in(cx, |workspace, window, cx| {
 8918            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 8919        });
 8920
 8921        workspace.update_in(cx, |workspace, window, cx| {
 8922            assert!(!workspace.right_dock().read(cx).is_open());
 8923            assert!(panel.is_zoomed(window, cx));
 8924            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8925        });
 8926
 8927        // Transferring focus back to the panel keeps it zoomed
 8928        workspace.update_in(cx, |workspace, window, cx| {
 8929            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 8930        });
 8931
 8932        workspace.update_in(cx, |workspace, window, cx| {
 8933            assert!(workspace.right_dock().read(cx).is_open());
 8934            assert!(panel.is_zoomed(window, cx));
 8935            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8936        });
 8937
 8938        // Close the dock while it is zoomed
 8939        workspace.update_in(cx, |workspace, window, cx| {
 8940            workspace.toggle_dock(DockPosition::Right, window, cx)
 8941        });
 8942
 8943        workspace.update_in(cx, |workspace, window, cx| {
 8944            assert!(!workspace.right_dock().read(cx).is_open());
 8945            assert!(panel.is_zoomed(window, cx));
 8946            assert!(workspace.zoomed.is_none());
 8947            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8948        });
 8949
 8950        // Opening the dock, when it's zoomed, retains focus
 8951        workspace.update_in(cx, |workspace, window, cx| {
 8952            workspace.toggle_dock(DockPosition::Right, window, cx)
 8953        });
 8954
 8955        workspace.update_in(cx, |workspace, window, cx| {
 8956            assert!(workspace.right_dock().read(cx).is_open());
 8957            assert!(panel.is_zoomed(window, cx));
 8958            assert!(workspace.zoomed.is_some());
 8959            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 8960        });
 8961
 8962        // Unzoom and close the panel, zoom the active pane.
 8963        panel.update_in(cx, |panel, window, cx| panel.set_zoomed(false, window, cx));
 8964        workspace.update_in(cx, |workspace, window, cx| {
 8965            workspace.toggle_dock(DockPosition::Right, window, cx)
 8966        });
 8967        pane.update_in(cx, |pane, window, cx| {
 8968            pane.toggle_zoom(&Default::default(), window, cx)
 8969        });
 8970
 8971        // Opening a dock unzooms the pane.
 8972        workspace.update_in(cx, |workspace, window, cx| {
 8973            workspace.toggle_dock(DockPosition::Right, window, cx)
 8974        });
 8975        workspace.update_in(cx, |workspace, window, cx| {
 8976            let pane = pane.read(cx);
 8977            assert!(!pane.is_zoomed());
 8978            assert!(!pane.focus_handle(cx).is_focused(window));
 8979            assert!(workspace.right_dock().read(cx).is_open());
 8980            assert!(workspace.zoomed.is_none());
 8981        });
 8982    }
 8983
 8984    #[gpui::test]
 8985    async fn test_join_pane_into_next(cx: &mut gpui::TestAppContext) {
 8986        init_test(cx);
 8987
 8988        let fs = FakeFs::new(cx.executor());
 8989
 8990        let project = Project::test(fs, None, cx).await;
 8991        let (workspace, cx) =
 8992            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 8993
 8994        // Let's arrange the panes like this:
 8995        //
 8996        // +-----------------------+
 8997        // |         top           |
 8998        // +------+--------+-------+
 8999        // | left | center | right |
 9000        // +------+--------+-------+
 9001        // |        bottom         |
 9002        // +-----------------------+
 9003
 9004        let top_item = cx.new(|cx| {
 9005            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "top.txt", cx)])
 9006        });
 9007        let bottom_item = cx.new(|cx| {
 9008            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "bottom.txt", cx)])
 9009        });
 9010        let left_item = cx.new(|cx| {
 9011            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "left.txt", cx)])
 9012        });
 9013        let right_item = cx.new(|cx| {
 9014            TestItem::new(cx).with_project_items(&[TestProjectItem::new(4, "right.txt", cx)])
 9015        });
 9016        let center_item = cx.new(|cx| {
 9017            TestItem::new(cx).with_project_items(&[TestProjectItem::new(5, "center.txt", cx)])
 9018        });
 9019
 9020        let top_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 9021            let top_pane_id = workspace.active_pane().entity_id();
 9022            workspace.add_item_to_active_pane(Box::new(top_item.clone()), None, false, window, cx);
 9023            workspace.split_pane(
 9024                workspace.active_pane().clone(),
 9025                SplitDirection::Down,
 9026                window,
 9027                cx,
 9028            );
 9029            top_pane_id
 9030        });
 9031        let bottom_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 9032            let bottom_pane_id = workspace.active_pane().entity_id();
 9033            workspace.add_item_to_active_pane(
 9034                Box::new(bottom_item.clone()),
 9035                None,
 9036                false,
 9037                window,
 9038                cx,
 9039            );
 9040            workspace.split_pane(
 9041                workspace.active_pane().clone(),
 9042                SplitDirection::Up,
 9043                window,
 9044                cx,
 9045            );
 9046            bottom_pane_id
 9047        });
 9048        let left_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 9049            let left_pane_id = workspace.active_pane().entity_id();
 9050            workspace.add_item_to_active_pane(Box::new(left_item.clone()), None, false, window, cx);
 9051            workspace.split_pane(
 9052                workspace.active_pane().clone(),
 9053                SplitDirection::Right,
 9054                window,
 9055                cx,
 9056            );
 9057            left_pane_id
 9058        });
 9059        let right_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 9060            let right_pane_id = workspace.active_pane().entity_id();
 9061            workspace.add_item_to_active_pane(
 9062                Box::new(right_item.clone()),
 9063                None,
 9064                false,
 9065                window,
 9066                cx,
 9067            );
 9068            workspace.split_pane(
 9069                workspace.active_pane().clone(),
 9070                SplitDirection::Left,
 9071                window,
 9072                cx,
 9073            );
 9074            right_pane_id
 9075        });
 9076        let center_pane_id = workspace.update_in(cx, |workspace, window, cx| {
 9077            let center_pane_id = workspace.active_pane().entity_id();
 9078            workspace.add_item_to_active_pane(
 9079                Box::new(center_item.clone()),
 9080                None,
 9081                false,
 9082                window,
 9083                cx,
 9084            );
 9085            center_pane_id
 9086        });
 9087        cx.executor().run_until_parked();
 9088
 9089        workspace.update_in(cx, |workspace, window, cx| {
 9090            assert_eq!(center_pane_id, workspace.active_pane().entity_id());
 9091
 9092            // Join into next from center pane into right
 9093            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 9094        });
 9095
 9096        workspace.update_in(cx, |workspace, window, cx| {
 9097            let active_pane = workspace.active_pane();
 9098            assert_eq!(right_pane_id, active_pane.entity_id());
 9099            assert_eq!(2, active_pane.read(cx).items_len());
 9100            let item_ids_in_pane =
 9101                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 9102            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 9103            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 9104
 9105            // Join into next from right pane into bottom
 9106            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 9107        });
 9108
 9109        workspace.update_in(cx, |workspace, window, cx| {
 9110            let active_pane = workspace.active_pane();
 9111            assert_eq!(bottom_pane_id, active_pane.entity_id());
 9112            assert_eq!(3, active_pane.read(cx).items_len());
 9113            let item_ids_in_pane =
 9114                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 9115            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 9116            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 9117            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
 9118
 9119            // Join into next from bottom pane into left
 9120            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 9121        });
 9122
 9123        workspace.update_in(cx, |workspace, window, cx| {
 9124            let active_pane = workspace.active_pane();
 9125            assert_eq!(left_pane_id, active_pane.entity_id());
 9126            assert_eq!(4, active_pane.read(cx).items_len());
 9127            let item_ids_in_pane =
 9128                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 9129            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 9130            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 9131            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
 9132            assert!(item_ids_in_pane.contains(&left_item.item_id()));
 9133
 9134            // Join into next from left pane into top
 9135            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
 9136        });
 9137
 9138        workspace.update_in(cx, |workspace, window, cx| {
 9139            let active_pane = workspace.active_pane();
 9140            assert_eq!(top_pane_id, active_pane.entity_id());
 9141            assert_eq!(5, active_pane.read(cx).items_len());
 9142            let item_ids_in_pane =
 9143                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
 9144            assert!(item_ids_in_pane.contains(&center_item.item_id()));
 9145            assert!(item_ids_in_pane.contains(&right_item.item_id()));
 9146            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
 9147            assert!(item_ids_in_pane.contains(&left_item.item_id()));
 9148            assert!(item_ids_in_pane.contains(&top_item.item_id()));
 9149
 9150            // Single pane left: no-op
 9151            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx)
 9152        });
 9153
 9154        workspace.update(cx, |workspace, _cx| {
 9155            let active_pane = workspace.active_pane();
 9156            assert_eq!(top_pane_id, active_pane.entity_id());
 9157        });
 9158    }
 9159
 9160    fn add_an_item_to_active_pane(
 9161        cx: &mut VisualTestContext,
 9162        workspace: &Entity<Workspace>,
 9163        item_id: u64,
 9164    ) -> Entity<TestItem> {
 9165        let item = cx.new(|cx| {
 9166            TestItem::new(cx).with_project_items(&[TestProjectItem::new(
 9167                item_id,
 9168                "item{item_id}.txt",
 9169                cx,
 9170            )])
 9171        });
 9172        workspace.update_in(cx, |workspace, window, cx| {
 9173            workspace.add_item_to_active_pane(Box::new(item.clone()), None, false, window, cx);
 9174        });
 9175        return item;
 9176    }
 9177
 9178    fn split_pane(cx: &mut VisualTestContext, workspace: &Entity<Workspace>) -> Entity<Pane> {
 9179        return workspace.update_in(cx, |workspace, window, cx| {
 9180            let new_pane = workspace.split_pane(
 9181                workspace.active_pane().clone(),
 9182                SplitDirection::Right,
 9183                window,
 9184                cx,
 9185            );
 9186            new_pane
 9187        });
 9188    }
 9189
 9190    #[gpui::test]
 9191    async fn test_join_all_panes(cx: &mut gpui::TestAppContext) {
 9192        init_test(cx);
 9193        let fs = FakeFs::new(cx.executor());
 9194        let project = Project::test(fs, None, cx).await;
 9195        let (workspace, cx) =
 9196            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9197
 9198        add_an_item_to_active_pane(cx, &workspace, 1);
 9199        split_pane(cx, &workspace);
 9200        add_an_item_to_active_pane(cx, &workspace, 2);
 9201        split_pane(cx, &workspace); // empty pane
 9202        split_pane(cx, &workspace);
 9203        let last_item = add_an_item_to_active_pane(cx, &workspace, 3);
 9204
 9205        cx.executor().run_until_parked();
 9206
 9207        workspace.update(cx, |workspace, cx| {
 9208            let num_panes = workspace.panes().len();
 9209            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
 9210            let active_item = workspace
 9211                .active_pane()
 9212                .read(cx)
 9213                .active_item()
 9214                .expect("item is in focus");
 9215
 9216            assert_eq!(num_panes, 4);
 9217            assert_eq!(num_items_in_current_pane, 1);
 9218            assert_eq!(active_item.item_id(), last_item.item_id());
 9219        });
 9220
 9221        workspace.update_in(cx, |workspace, window, cx| {
 9222            workspace.join_all_panes(window, cx);
 9223        });
 9224
 9225        workspace.update(cx, |workspace, cx| {
 9226            let num_panes = workspace.panes().len();
 9227            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
 9228            let active_item = workspace
 9229                .active_pane()
 9230                .read(cx)
 9231                .active_item()
 9232                .expect("item is in focus");
 9233
 9234            assert_eq!(num_panes, 1);
 9235            assert_eq!(num_items_in_current_pane, 3);
 9236            assert_eq!(active_item.item_id(), last_item.item_id());
 9237        });
 9238    }
 9239    struct TestModal(FocusHandle);
 9240
 9241    impl TestModal {
 9242        fn new(_: &mut Window, cx: &mut Context<Self>) -> Self {
 9243            Self(cx.focus_handle())
 9244        }
 9245    }
 9246
 9247    impl EventEmitter<DismissEvent> for TestModal {}
 9248
 9249    impl Focusable for TestModal {
 9250        fn focus_handle(&self, _cx: &App) -> FocusHandle {
 9251            self.0.clone()
 9252        }
 9253    }
 9254
 9255    impl ModalView for TestModal {}
 9256
 9257    impl Render for TestModal {
 9258        fn render(
 9259            &mut self,
 9260            _window: &mut Window,
 9261            _cx: &mut Context<TestModal>,
 9262        ) -> impl IntoElement {
 9263            div().track_focus(&self.0)
 9264        }
 9265    }
 9266
 9267    #[gpui::test]
 9268    async fn test_panels(cx: &mut gpui::TestAppContext) {
 9269        init_test(cx);
 9270        let fs = FakeFs::new(cx.executor());
 9271
 9272        let project = Project::test(fs, [], cx).await;
 9273        let (workspace, cx) =
 9274            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9275
 9276        let (panel_1, panel_2) = workspace.update_in(cx, |workspace, window, cx| {
 9277            let panel_1 = cx.new(|cx| TestPanel::new(DockPosition::Left, cx));
 9278            workspace.add_panel(panel_1.clone(), window, cx);
 9279            workspace.toggle_dock(DockPosition::Left, window, cx);
 9280            let panel_2 = cx.new(|cx| TestPanel::new(DockPosition::Right, cx));
 9281            workspace.add_panel(panel_2.clone(), window, cx);
 9282            workspace.toggle_dock(DockPosition::Right, window, cx);
 9283
 9284            let left_dock = workspace.left_dock();
 9285            assert_eq!(
 9286                left_dock.read(cx).visible_panel().unwrap().panel_id(),
 9287                panel_1.panel_id()
 9288            );
 9289            assert_eq!(
 9290                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
 9291                panel_1.size(window, cx)
 9292            );
 9293
 9294            left_dock.update(cx, |left_dock, cx| {
 9295                left_dock.resize_active_panel(Some(px(1337.)), window, cx)
 9296            });
 9297            assert_eq!(
 9298                workspace
 9299                    .right_dock()
 9300                    .read(cx)
 9301                    .visible_panel()
 9302                    .unwrap()
 9303                    .panel_id(),
 9304                panel_2.panel_id(),
 9305            );
 9306
 9307            (panel_1, panel_2)
 9308        });
 9309
 9310        // Move panel_1 to the right
 9311        panel_1.update_in(cx, |panel_1, window, cx| {
 9312            panel_1.set_position(DockPosition::Right, window, cx)
 9313        });
 9314
 9315        workspace.update_in(cx, |workspace, window, cx| {
 9316            // Since panel_1 was visible on the left, it should now be visible now that it's been moved to the right.
 9317            // Since it was the only panel on the left, the left dock should now be closed.
 9318            assert!(!workspace.left_dock().read(cx).is_open());
 9319            assert!(workspace.left_dock().read(cx).visible_panel().is_none());
 9320            let right_dock = workspace.right_dock();
 9321            assert_eq!(
 9322                right_dock.read(cx).visible_panel().unwrap().panel_id(),
 9323                panel_1.panel_id()
 9324            );
 9325            assert_eq!(
 9326                right_dock.read(cx).active_panel_size(window, cx).unwrap(),
 9327                px(1337.)
 9328            );
 9329
 9330            // Now we move panel_2 to the left
 9331            panel_2.set_position(DockPosition::Left, window, cx);
 9332        });
 9333
 9334        workspace.update(cx, |workspace, cx| {
 9335            // Since panel_2 was not visible on the right, we don't open the left dock.
 9336            assert!(!workspace.left_dock().read(cx).is_open());
 9337            // And the right dock is unaffected in its displaying of panel_1
 9338            assert!(workspace.right_dock().read(cx).is_open());
 9339            assert_eq!(
 9340                workspace
 9341                    .right_dock()
 9342                    .read(cx)
 9343                    .visible_panel()
 9344                    .unwrap()
 9345                    .panel_id(),
 9346                panel_1.panel_id(),
 9347            );
 9348        });
 9349
 9350        // Move panel_1 back to the left
 9351        panel_1.update_in(cx, |panel_1, window, cx| {
 9352            panel_1.set_position(DockPosition::Left, window, cx)
 9353        });
 9354
 9355        workspace.update_in(cx, |workspace, window, cx| {
 9356            // Since panel_1 was visible on the right, we open the left dock and make panel_1 active.
 9357            let left_dock = workspace.left_dock();
 9358            assert!(left_dock.read(cx).is_open());
 9359            assert_eq!(
 9360                left_dock.read(cx).visible_panel().unwrap().panel_id(),
 9361                panel_1.panel_id()
 9362            );
 9363            assert_eq!(
 9364                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
 9365                px(1337.)
 9366            );
 9367            // And the right dock should be closed as it no longer has any panels.
 9368            assert!(!workspace.right_dock().read(cx).is_open());
 9369
 9370            // Now we move panel_1 to the bottom
 9371            panel_1.set_position(DockPosition::Bottom, window, cx);
 9372        });
 9373
 9374        workspace.update_in(cx, |workspace, window, cx| {
 9375            // Since panel_1 was visible on the left, we close the left dock.
 9376            assert!(!workspace.left_dock().read(cx).is_open());
 9377            // The bottom dock is sized based on the panel's default size,
 9378            // since the panel orientation changed from vertical to horizontal.
 9379            let bottom_dock = workspace.bottom_dock();
 9380            assert_eq!(
 9381                bottom_dock.read(cx).active_panel_size(window, cx).unwrap(),
 9382                panel_1.size(window, cx),
 9383            );
 9384            // Close bottom dock and move panel_1 back to the left.
 9385            bottom_dock.update(cx, |bottom_dock, cx| {
 9386                bottom_dock.set_open(false, window, cx)
 9387            });
 9388            panel_1.set_position(DockPosition::Left, window, cx);
 9389        });
 9390
 9391        // Emit activated event on panel 1
 9392        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Activate));
 9393
 9394        // Now the left dock is open and panel_1 is active and focused.
 9395        workspace.update_in(cx, |workspace, window, cx| {
 9396            let left_dock = workspace.left_dock();
 9397            assert!(left_dock.read(cx).is_open());
 9398            assert_eq!(
 9399                left_dock.read(cx).visible_panel().unwrap().panel_id(),
 9400                panel_1.panel_id(),
 9401            );
 9402            assert!(panel_1.focus_handle(cx).is_focused(window));
 9403        });
 9404
 9405        // Emit closed event on panel 2, which is not active
 9406        panel_2.update(cx, |_, cx| cx.emit(PanelEvent::Close));
 9407
 9408        // Wo don't close the left dock, because panel_2 wasn't the active panel
 9409        workspace.update(cx, |workspace, cx| {
 9410            let left_dock = workspace.left_dock();
 9411            assert!(left_dock.read(cx).is_open());
 9412            assert_eq!(
 9413                left_dock.read(cx).visible_panel().unwrap().panel_id(),
 9414                panel_1.panel_id(),
 9415            );
 9416        });
 9417
 9418        // Emitting a ZoomIn event shows the panel as zoomed.
 9419        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomIn));
 9420        workspace.read_with(cx, |workspace, _| {
 9421            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
 9422            assert_eq!(workspace.zoomed_position, Some(DockPosition::Left));
 9423        });
 9424
 9425        // Move panel to another dock while it is zoomed
 9426        panel_1.update_in(cx, |panel, window, cx| {
 9427            panel.set_position(DockPosition::Right, window, cx)
 9428        });
 9429        workspace.read_with(cx, |workspace, _| {
 9430            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
 9431
 9432            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
 9433        });
 9434
 9435        // This is a helper for getting a:
 9436        // - valid focus on an element,
 9437        // - that isn't a part of the panes and panels system of the Workspace,
 9438        // - and doesn't trigger the 'on_focus_lost' API.
 9439        let focus_other_view = {
 9440            let workspace = workspace.clone();
 9441            move |cx: &mut VisualTestContext| {
 9442                workspace.update_in(cx, |workspace, window, cx| {
 9443                    if let Some(_) = workspace.active_modal::<TestModal>(cx) {
 9444                        workspace.toggle_modal(window, cx, TestModal::new);
 9445                        workspace.toggle_modal(window, cx, TestModal::new);
 9446                    } else {
 9447                        workspace.toggle_modal(window, cx, TestModal::new);
 9448                    }
 9449                })
 9450            }
 9451        };
 9452
 9453        // If focus is transferred to another view that's not a panel or another pane, we still show
 9454        // the panel as zoomed.
 9455        focus_other_view(cx);
 9456        workspace.read_with(cx, |workspace, _| {
 9457            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
 9458            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
 9459        });
 9460
 9461        // If focus is transferred elsewhere in the workspace, the panel is no longer zoomed.
 9462        workspace.update_in(cx, |_workspace, window, cx| {
 9463            cx.focus_self(window);
 9464        });
 9465        workspace.read_with(cx, |workspace, _| {
 9466            assert_eq!(workspace.zoomed, None);
 9467            assert_eq!(workspace.zoomed_position, None);
 9468        });
 9469
 9470        // If focus is transferred again to another view that's not a panel or a pane, we won't
 9471        // show the panel as zoomed because it wasn't zoomed before.
 9472        focus_other_view(cx);
 9473        workspace.read_with(cx, |workspace, _| {
 9474            assert_eq!(workspace.zoomed, None);
 9475            assert_eq!(workspace.zoomed_position, None);
 9476        });
 9477
 9478        // When the panel is activated, it is zoomed again.
 9479        cx.dispatch_action(ToggleRightDock);
 9480        workspace.read_with(cx, |workspace, _| {
 9481            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
 9482            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
 9483        });
 9484
 9485        // Emitting a ZoomOut event unzooms the panel.
 9486        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomOut));
 9487        workspace.read_with(cx, |workspace, _| {
 9488            assert_eq!(workspace.zoomed, None);
 9489            assert_eq!(workspace.zoomed_position, None);
 9490        });
 9491
 9492        // Emit closed event on panel 1, which is active
 9493        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Close));
 9494
 9495        // Now the left dock is closed, because panel_1 was the active panel
 9496        workspace.update(cx, |workspace, cx| {
 9497            let right_dock = workspace.right_dock();
 9498            assert!(!right_dock.read(cx).is_open());
 9499        });
 9500    }
 9501
 9502    #[gpui::test]
 9503    async fn test_no_save_prompt_when_multi_buffer_dirty_items_closed(cx: &mut TestAppContext) {
 9504        init_test(cx);
 9505
 9506        let fs = FakeFs::new(cx.background_executor.clone());
 9507        let project = Project::test(fs, [], cx).await;
 9508        let (workspace, cx) =
 9509            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9510        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9511
 9512        let dirty_regular_buffer = cx.new(|cx| {
 9513            TestItem::new(cx)
 9514                .with_dirty(true)
 9515                .with_label("1.txt")
 9516                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
 9517        });
 9518        let dirty_regular_buffer_2 = cx.new(|cx| {
 9519            TestItem::new(cx)
 9520                .with_dirty(true)
 9521                .with_label("2.txt")
 9522                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
 9523        });
 9524        let dirty_multi_buffer_with_both = cx.new(|cx| {
 9525            TestItem::new(cx)
 9526                .with_dirty(true)
 9527                .with_singleton(false)
 9528                .with_label("Fake Project Search")
 9529                .with_project_items(&[
 9530                    dirty_regular_buffer.read(cx).project_items[0].clone(),
 9531                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
 9532                ])
 9533        });
 9534        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
 9535        workspace.update_in(cx, |workspace, window, cx| {
 9536            workspace.add_item(
 9537                pane.clone(),
 9538                Box::new(dirty_regular_buffer.clone()),
 9539                None,
 9540                false,
 9541                false,
 9542                window,
 9543                cx,
 9544            );
 9545            workspace.add_item(
 9546                pane.clone(),
 9547                Box::new(dirty_regular_buffer_2.clone()),
 9548                None,
 9549                false,
 9550                false,
 9551                window,
 9552                cx,
 9553            );
 9554            workspace.add_item(
 9555                pane.clone(),
 9556                Box::new(dirty_multi_buffer_with_both.clone()),
 9557                None,
 9558                false,
 9559                false,
 9560                window,
 9561                cx,
 9562            );
 9563        });
 9564
 9565        pane.update_in(cx, |pane, window, cx| {
 9566            pane.activate_item(2, true, true, window, cx);
 9567            assert_eq!(
 9568                pane.active_item().unwrap().item_id(),
 9569                multi_buffer_with_both_files_id,
 9570                "Should select the multi buffer in the pane"
 9571            );
 9572        });
 9573        let close_all_but_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
 9574            pane.close_other_items(
 9575                &CloseOtherItems {
 9576                    save_intent: Some(SaveIntent::Save),
 9577                    close_pinned: true,
 9578                },
 9579                None,
 9580                window,
 9581                cx,
 9582            )
 9583        });
 9584        cx.background_executor.run_until_parked();
 9585        assert!(!cx.has_pending_prompt());
 9586        close_all_but_multi_buffer_task
 9587            .await
 9588            .expect("Closing all buffers but the multi buffer failed");
 9589        pane.update(cx, |pane, cx| {
 9590            assert_eq!(dirty_regular_buffer.read(cx).save_count, 1);
 9591            assert_eq!(dirty_multi_buffer_with_both.read(cx).save_count, 0);
 9592            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 1);
 9593            assert_eq!(pane.items_len(), 1);
 9594            assert_eq!(
 9595                pane.active_item().unwrap().item_id(),
 9596                multi_buffer_with_both_files_id,
 9597                "Should have only the multi buffer left in the pane"
 9598            );
 9599            assert!(
 9600                dirty_multi_buffer_with_both.read(cx).is_dirty,
 9601                "The multi buffer containing the unsaved buffer should still be dirty"
 9602            );
 9603        });
 9604
 9605        dirty_regular_buffer.update(cx, |buffer, cx| {
 9606            buffer.project_items[0].update(cx, |pi, _| pi.is_dirty = true)
 9607        });
 9608
 9609        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
 9610            pane.close_active_item(
 9611                &CloseActiveItem {
 9612                    save_intent: Some(SaveIntent::Close),
 9613                    close_pinned: false,
 9614                },
 9615                window,
 9616                cx,
 9617            )
 9618        });
 9619        cx.background_executor.run_until_parked();
 9620        assert!(
 9621            cx.has_pending_prompt(),
 9622            "Dirty multi buffer should prompt a save dialog"
 9623        );
 9624        cx.simulate_prompt_answer("Save");
 9625        cx.background_executor.run_until_parked();
 9626        close_multi_buffer_task
 9627            .await
 9628            .expect("Closing the multi buffer failed");
 9629        pane.update(cx, |pane, cx| {
 9630            assert_eq!(
 9631                dirty_multi_buffer_with_both.read(cx).save_count,
 9632                1,
 9633                "Multi buffer item should get be saved"
 9634            );
 9635            // Test impl does not save inner items, so we do not assert them
 9636            assert_eq!(
 9637                pane.items_len(),
 9638                0,
 9639                "No more items should be left in the pane"
 9640            );
 9641            assert!(pane.active_item().is_none());
 9642        });
 9643    }
 9644
 9645    #[gpui::test]
 9646    async fn test_save_prompt_when_dirty_multi_buffer_closed_with_some_of_its_dirty_items_not_present_in_the_pane(
 9647        cx: &mut TestAppContext,
 9648    ) {
 9649        init_test(cx);
 9650
 9651        let fs = FakeFs::new(cx.background_executor.clone());
 9652        let project = Project::test(fs, [], cx).await;
 9653        let (workspace, cx) =
 9654            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9655        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9656
 9657        let dirty_regular_buffer = cx.new(|cx| {
 9658            TestItem::new(cx)
 9659                .with_dirty(true)
 9660                .with_label("1.txt")
 9661                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
 9662        });
 9663        let dirty_regular_buffer_2 = cx.new(|cx| {
 9664            TestItem::new(cx)
 9665                .with_dirty(true)
 9666                .with_label("2.txt")
 9667                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
 9668        });
 9669        let clear_regular_buffer = cx.new(|cx| {
 9670            TestItem::new(cx)
 9671                .with_label("3.txt")
 9672                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
 9673        });
 9674
 9675        let dirty_multi_buffer_with_both = cx.new(|cx| {
 9676            TestItem::new(cx)
 9677                .with_dirty(true)
 9678                .with_singleton(false)
 9679                .with_label("Fake Project Search")
 9680                .with_project_items(&[
 9681                    dirty_regular_buffer.read(cx).project_items[0].clone(),
 9682                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
 9683                    clear_regular_buffer.read(cx).project_items[0].clone(),
 9684                ])
 9685        });
 9686        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
 9687        workspace.update_in(cx, |workspace, window, cx| {
 9688            workspace.add_item(
 9689                pane.clone(),
 9690                Box::new(dirty_regular_buffer.clone()),
 9691                None,
 9692                false,
 9693                false,
 9694                window,
 9695                cx,
 9696            );
 9697            workspace.add_item(
 9698                pane.clone(),
 9699                Box::new(dirty_multi_buffer_with_both.clone()),
 9700                None,
 9701                false,
 9702                false,
 9703                window,
 9704                cx,
 9705            );
 9706        });
 9707
 9708        pane.update_in(cx, |pane, window, cx| {
 9709            pane.activate_item(1, true, true, window, cx);
 9710            assert_eq!(
 9711                pane.active_item().unwrap().item_id(),
 9712                multi_buffer_with_both_files_id,
 9713                "Should select the multi buffer in the pane"
 9714            );
 9715        });
 9716        let _close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
 9717            pane.close_active_item(
 9718                &CloseActiveItem {
 9719                    save_intent: None,
 9720                    close_pinned: false,
 9721                },
 9722                window,
 9723                cx,
 9724            )
 9725        });
 9726        cx.background_executor.run_until_parked();
 9727        assert!(
 9728            cx.has_pending_prompt(),
 9729            "With one dirty item from the multi buffer not being in the pane, a save prompt should be shown"
 9730        );
 9731    }
 9732
 9733    /// Tests that when `close_on_file_delete` is enabled, files are automatically
 9734    /// closed when they are deleted from disk.
 9735    #[gpui::test]
 9736    async fn test_close_on_disk_deletion_enabled(cx: &mut TestAppContext) {
 9737        init_test(cx);
 9738
 9739        // Enable the close_on_disk_deletion setting
 9740        cx.update_global(|store: &mut SettingsStore, cx| {
 9741            store.update_user_settings::<WorkspaceSettings>(cx, |settings| {
 9742                settings.close_on_file_delete = Some(true);
 9743            });
 9744        });
 9745
 9746        let fs = FakeFs::new(cx.background_executor.clone());
 9747        let project = Project::test(fs, [], cx).await;
 9748        let (workspace, cx) =
 9749            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9750        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9751
 9752        // Create a test item that simulates a file
 9753        let item = cx.new(|cx| {
 9754            TestItem::new(cx)
 9755                .with_label("test.txt")
 9756                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
 9757        });
 9758
 9759        // Add item to workspace
 9760        workspace.update_in(cx, |workspace, window, cx| {
 9761            workspace.add_item(
 9762                pane.clone(),
 9763                Box::new(item.clone()),
 9764                None,
 9765                false,
 9766                false,
 9767                window,
 9768                cx,
 9769            );
 9770        });
 9771
 9772        // Verify the item is in the pane
 9773        pane.read_with(cx, |pane, _| {
 9774            assert_eq!(pane.items().count(), 1);
 9775        });
 9776
 9777        // Simulate file deletion by setting the item's deleted state
 9778        item.update(cx, |item, _| {
 9779            item.set_has_deleted_file(true);
 9780        });
 9781
 9782        // Emit UpdateTab event to trigger the close behavior
 9783        cx.run_until_parked();
 9784        item.update(cx, |_, cx| {
 9785            cx.emit(ItemEvent::UpdateTab);
 9786        });
 9787
 9788        // Allow the close operation to complete
 9789        cx.run_until_parked();
 9790
 9791        // Verify the item was automatically closed
 9792        pane.read_with(cx, |pane, _| {
 9793            assert_eq!(
 9794                pane.items().count(),
 9795                0,
 9796                "Item should be automatically closed when file is deleted"
 9797            );
 9798        });
 9799    }
 9800
 9801    /// Tests that when `close_on_file_delete` is disabled (default), files remain
 9802    /// open with a strikethrough when they are deleted from disk.
 9803    #[gpui::test]
 9804    async fn test_close_on_disk_deletion_disabled(cx: &mut TestAppContext) {
 9805        init_test(cx);
 9806
 9807        // Ensure close_on_disk_deletion is disabled (default)
 9808        cx.update_global(|store: &mut SettingsStore, cx| {
 9809            store.update_user_settings::<WorkspaceSettings>(cx, |settings| {
 9810                settings.close_on_file_delete = Some(false);
 9811            });
 9812        });
 9813
 9814        let fs = FakeFs::new(cx.background_executor.clone());
 9815        let project = Project::test(fs, [], cx).await;
 9816        let (workspace, cx) =
 9817            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9818        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9819
 9820        // Create a test item that simulates a file
 9821        let item = cx.new(|cx| {
 9822            TestItem::new(cx)
 9823                .with_label("test.txt")
 9824                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
 9825        });
 9826
 9827        // Add item to workspace
 9828        workspace.update_in(cx, |workspace, window, cx| {
 9829            workspace.add_item(
 9830                pane.clone(),
 9831                Box::new(item.clone()),
 9832                None,
 9833                false,
 9834                false,
 9835                window,
 9836                cx,
 9837            );
 9838        });
 9839
 9840        // Verify the item is in the pane
 9841        pane.read_with(cx, |pane, _| {
 9842            assert_eq!(pane.items().count(), 1);
 9843        });
 9844
 9845        // Simulate file deletion
 9846        item.update(cx, |item, _| {
 9847            item.set_has_deleted_file(true);
 9848        });
 9849
 9850        // Emit UpdateTab event
 9851        cx.run_until_parked();
 9852        item.update(cx, |_, cx| {
 9853            cx.emit(ItemEvent::UpdateTab);
 9854        });
 9855
 9856        // Allow any potential close operation to complete
 9857        cx.run_until_parked();
 9858
 9859        // Verify the item remains open (with strikethrough)
 9860        pane.read_with(cx, |pane, _| {
 9861            assert_eq!(
 9862                pane.items().count(),
 9863                1,
 9864                "Item should remain open when close_on_disk_deletion is disabled"
 9865            );
 9866        });
 9867
 9868        // Verify the item shows as deleted
 9869        item.read_with(cx, |item, _| {
 9870            assert!(
 9871                item.has_deleted_file,
 9872                "Item should be marked as having deleted file"
 9873            );
 9874        });
 9875    }
 9876
 9877    /// Tests that dirty files are not automatically closed when deleted from disk,
 9878    /// even when `close_on_file_delete` is enabled. This ensures users don't lose
 9879    /// unsaved changes without being prompted.
 9880    #[gpui::test]
 9881    async fn test_close_on_disk_deletion_with_dirty_file(cx: &mut TestAppContext) {
 9882        init_test(cx);
 9883
 9884        // Enable the close_on_file_delete setting
 9885        cx.update_global(|store: &mut SettingsStore, cx| {
 9886            store.update_user_settings::<WorkspaceSettings>(cx, |settings| {
 9887                settings.close_on_file_delete = Some(true);
 9888            });
 9889        });
 9890
 9891        let fs = FakeFs::new(cx.background_executor.clone());
 9892        let project = Project::test(fs, [], cx).await;
 9893        let (workspace, cx) =
 9894            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9895        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9896
 9897        // Create a dirty test item
 9898        let item = cx.new(|cx| {
 9899            TestItem::new(cx)
 9900                .with_dirty(true)
 9901                .with_label("test.txt")
 9902                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
 9903        });
 9904
 9905        // Add item to workspace
 9906        workspace.update_in(cx, |workspace, window, cx| {
 9907            workspace.add_item(
 9908                pane.clone(),
 9909                Box::new(item.clone()),
 9910                None,
 9911                false,
 9912                false,
 9913                window,
 9914                cx,
 9915            );
 9916        });
 9917
 9918        // Simulate file deletion
 9919        item.update(cx, |item, _| {
 9920            item.set_has_deleted_file(true);
 9921        });
 9922
 9923        // Emit UpdateTab event to trigger the close behavior
 9924        cx.run_until_parked();
 9925        item.update(cx, |_, cx| {
 9926            cx.emit(ItemEvent::UpdateTab);
 9927        });
 9928
 9929        // Allow any potential close operation to complete
 9930        cx.run_until_parked();
 9931
 9932        // Verify the item remains open (dirty files are not auto-closed)
 9933        pane.read_with(cx, |pane, _| {
 9934            assert_eq!(
 9935                pane.items().count(),
 9936                1,
 9937                "Dirty items should not be automatically closed even when file is deleted"
 9938            );
 9939        });
 9940
 9941        // Verify the item is marked as deleted and still dirty
 9942        item.read_with(cx, |item, _| {
 9943            assert!(
 9944                item.has_deleted_file,
 9945                "Item should be marked as having deleted file"
 9946            );
 9947            assert!(item.is_dirty, "Item should still be dirty");
 9948        });
 9949    }
 9950
 9951    /// Tests that navigation history is cleaned up when files are auto-closed
 9952    /// due to deletion from disk.
 9953    #[gpui::test]
 9954    async fn test_close_on_disk_deletion_cleans_navigation_history(cx: &mut TestAppContext) {
 9955        init_test(cx);
 9956
 9957        // Enable the close_on_file_delete setting
 9958        cx.update_global(|store: &mut SettingsStore, cx| {
 9959            store.update_user_settings::<WorkspaceSettings>(cx, |settings| {
 9960                settings.close_on_file_delete = Some(true);
 9961            });
 9962        });
 9963
 9964        let fs = FakeFs::new(cx.background_executor.clone());
 9965        let project = Project::test(fs, [], cx).await;
 9966        let (workspace, cx) =
 9967            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9968        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9969
 9970        // Create test items
 9971        let item1 = cx.new(|cx| {
 9972            TestItem::new(cx)
 9973                .with_label("test1.txt")
 9974                .with_project_items(&[TestProjectItem::new(1, "test1.txt", cx)])
 9975        });
 9976        let item1_id = item1.item_id();
 9977
 9978        let item2 = cx.new(|cx| {
 9979            TestItem::new(cx)
 9980                .with_label("test2.txt")
 9981                .with_project_items(&[TestProjectItem::new(2, "test2.txt", cx)])
 9982        });
 9983
 9984        // Add items to workspace
 9985        workspace.update_in(cx, |workspace, window, cx| {
 9986            workspace.add_item(
 9987                pane.clone(),
 9988                Box::new(item1.clone()),
 9989                None,
 9990                false,
 9991                false,
 9992                window,
 9993                cx,
 9994            );
 9995            workspace.add_item(
 9996                pane.clone(),
 9997                Box::new(item2.clone()),
 9998                None,
 9999                false,
10000                false,
10001                window,
10002                cx,
10003            );
10004        });
10005
10006        // Activate item1 to ensure it gets navigation entries
10007        pane.update_in(cx, |pane, window, cx| {
10008            pane.activate_item(0, true, true, window, cx);
10009        });
10010
10011        // Switch to item2 and back to create navigation history
10012        pane.update_in(cx, |pane, window, cx| {
10013            pane.activate_item(1, true, true, window, cx);
10014        });
10015        cx.run_until_parked();
10016
10017        pane.update_in(cx, |pane, window, cx| {
10018            pane.activate_item(0, true, true, window, cx);
10019        });
10020        cx.run_until_parked();
10021
10022        // Simulate file deletion for item1
10023        item1.update(cx, |item, _| {
10024            item.set_has_deleted_file(true);
10025        });
10026
10027        // Emit UpdateTab event to trigger the close behavior
10028        item1.update(cx, |_, cx| {
10029            cx.emit(ItemEvent::UpdateTab);
10030        });
10031        cx.run_until_parked();
10032
10033        // Verify item1 was closed
10034        pane.read_with(cx, |pane, _| {
10035            assert_eq!(
10036                pane.items().count(),
10037                1,
10038                "Should have 1 item remaining after auto-close"
10039            );
10040        });
10041
10042        // Check navigation history after close
10043        let has_item = pane.read_with(cx, |pane, cx| {
10044            let mut has_item = false;
10045            pane.nav_history().for_each_entry(cx, |entry, _| {
10046                if entry.item.id() == item1_id {
10047                    has_item = true;
10048                }
10049            });
10050            has_item
10051        });
10052
10053        assert!(
10054            !has_item,
10055            "Navigation history should not contain closed item entries"
10056        );
10057    }
10058
10059    #[gpui::test]
10060    async fn test_no_save_prompt_when_dirty_multi_buffer_closed_with_all_of_its_dirty_items_present_in_the_pane(
10061        cx: &mut TestAppContext,
10062    ) {
10063        init_test(cx);
10064
10065        let fs = FakeFs::new(cx.background_executor.clone());
10066        let project = Project::test(fs, [], cx).await;
10067        let (workspace, cx) =
10068            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10069        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10070
10071        let dirty_regular_buffer = cx.new(|cx| {
10072            TestItem::new(cx)
10073                .with_dirty(true)
10074                .with_label("1.txt")
10075                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10076        });
10077        let dirty_regular_buffer_2 = cx.new(|cx| {
10078            TestItem::new(cx)
10079                .with_dirty(true)
10080                .with_label("2.txt")
10081                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10082        });
10083        let clear_regular_buffer = cx.new(|cx| {
10084            TestItem::new(cx)
10085                .with_label("3.txt")
10086                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
10087        });
10088
10089        let dirty_multi_buffer = cx.new(|cx| {
10090            TestItem::new(cx)
10091                .with_dirty(true)
10092                .with_singleton(false)
10093                .with_label("Fake Project Search")
10094                .with_project_items(&[
10095                    dirty_regular_buffer.read(cx).project_items[0].clone(),
10096                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
10097                    clear_regular_buffer.read(cx).project_items[0].clone(),
10098                ])
10099        });
10100        workspace.update_in(cx, |workspace, window, cx| {
10101            workspace.add_item(
10102                pane.clone(),
10103                Box::new(dirty_regular_buffer.clone()),
10104                None,
10105                false,
10106                false,
10107                window,
10108                cx,
10109            );
10110            workspace.add_item(
10111                pane.clone(),
10112                Box::new(dirty_regular_buffer_2.clone()),
10113                None,
10114                false,
10115                false,
10116                window,
10117                cx,
10118            );
10119            workspace.add_item(
10120                pane.clone(),
10121                Box::new(dirty_multi_buffer.clone()),
10122                None,
10123                false,
10124                false,
10125                window,
10126                cx,
10127            );
10128        });
10129
10130        pane.update_in(cx, |pane, window, cx| {
10131            pane.activate_item(2, true, true, window, cx);
10132            assert_eq!(
10133                pane.active_item().unwrap().item_id(),
10134                dirty_multi_buffer.item_id(),
10135                "Should select the multi buffer in the pane"
10136            );
10137        });
10138        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10139            pane.close_active_item(
10140                &CloseActiveItem {
10141                    save_intent: None,
10142                    close_pinned: false,
10143                },
10144                window,
10145                cx,
10146            )
10147        });
10148        cx.background_executor.run_until_parked();
10149        assert!(
10150            !cx.has_pending_prompt(),
10151            "All dirty items from the multi buffer are in the pane still, no save prompts should be shown"
10152        );
10153        close_multi_buffer_task
10154            .await
10155            .expect("Closing multi buffer failed");
10156        pane.update(cx, |pane, cx| {
10157            assert_eq!(dirty_regular_buffer.read(cx).save_count, 0);
10158            assert_eq!(dirty_multi_buffer.read(cx).save_count, 0);
10159            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 0);
10160            assert_eq!(
10161                pane.items()
10162                    .map(|item| item.item_id())
10163                    .sorted()
10164                    .collect::<Vec<_>>(),
10165                vec![
10166                    dirty_regular_buffer.item_id(),
10167                    dirty_regular_buffer_2.item_id(),
10168                ],
10169                "Should have no multi buffer left in the pane"
10170            );
10171            assert!(dirty_regular_buffer.read(cx).is_dirty);
10172            assert!(dirty_regular_buffer_2.read(cx).is_dirty);
10173        });
10174    }
10175
10176    #[gpui::test]
10177    async fn test_move_focused_panel_to_next_position(cx: &mut gpui::TestAppContext) {
10178        init_test(cx);
10179        let fs = FakeFs::new(cx.executor());
10180        let project = Project::test(fs, [], cx).await;
10181        let (workspace, cx) =
10182            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10183
10184        // Add a new panel to the right dock, opening the dock and setting the
10185        // focus to the new panel.
10186        let panel = workspace.update_in(cx, |workspace, window, cx| {
10187            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, cx));
10188            workspace.add_panel(panel.clone(), window, cx);
10189
10190            workspace
10191                .right_dock()
10192                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
10193
10194            workspace.toggle_panel_focus::<TestPanel>(window, cx);
10195
10196            panel
10197        });
10198
10199        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
10200        // panel to the next valid position which, in this case, is the left
10201        // dock.
10202        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10203        workspace.update(cx, |workspace, cx| {
10204            assert!(workspace.left_dock().read(cx).is_open());
10205            assert_eq!(panel.read(cx).position, DockPosition::Left);
10206        });
10207
10208        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
10209        // panel to the next valid position which, in this case, is the bottom
10210        // dock.
10211        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10212        workspace.update(cx, |workspace, cx| {
10213            assert!(workspace.bottom_dock().read(cx).is_open());
10214            assert_eq!(panel.read(cx).position, DockPosition::Bottom);
10215        });
10216
10217        // Dispatch the `MoveFocusedPanelToNextPosition` action again, this time
10218        // around moving the panel to its initial position, the right dock.
10219        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10220        workspace.update(cx, |workspace, cx| {
10221            assert!(workspace.right_dock().read(cx).is_open());
10222            assert_eq!(panel.read(cx).position, DockPosition::Right);
10223        });
10224
10225        // Remove focus from the panel, ensuring that, if the panel is not
10226        // focused, the `MoveFocusedPanelToNextPosition` action does not update
10227        // the panel's position, so the panel is still in the right dock.
10228        workspace.update_in(cx, |workspace, window, cx| {
10229            workspace.toggle_panel_focus::<TestPanel>(window, cx);
10230        });
10231
10232        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10233        workspace.update(cx, |workspace, cx| {
10234            assert!(workspace.right_dock().read(cx).is_open());
10235            assert_eq!(panel.read(cx).position, DockPosition::Right);
10236        });
10237    }
10238
10239    #[gpui::test]
10240    async fn test_moving_items_create_panes(cx: &mut TestAppContext) {
10241        init_test(cx);
10242
10243        let fs = FakeFs::new(cx.executor());
10244        let project = Project::test(fs, [], cx).await;
10245        let (workspace, cx) =
10246            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10247
10248        let item_1 = cx.new(|cx| {
10249            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
10250        });
10251        workspace.update_in(cx, |workspace, window, cx| {
10252            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
10253            workspace.move_item_to_pane_in_direction(
10254                &MoveItemToPaneInDirection {
10255                    direction: SplitDirection::Right,
10256                    focus: true,
10257                    clone: false,
10258                },
10259                window,
10260                cx,
10261            );
10262            workspace.move_item_to_pane_at_index(
10263                &MoveItemToPane {
10264                    destination: 3,
10265                    focus: true,
10266                    clone: false,
10267                },
10268                window,
10269                cx,
10270            );
10271
10272            assert_eq!(workspace.panes.len(), 1, "No new panes were created");
10273            assert_eq!(
10274                pane_items_paths(&workspace.active_pane, cx),
10275                vec!["first.txt".to_string()],
10276                "Single item was not moved anywhere"
10277            );
10278        });
10279
10280        let item_2 = cx.new(|cx| {
10281            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "second.txt", cx)])
10282        });
10283        workspace.update_in(cx, |workspace, window, cx| {
10284            workspace.add_item_to_active_pane(Box::new(item_2), None, true, window, cx);
10285            assert_eq!(
10286                pane_items_paths(&workspace.panes[0], cx),
10287                vec!["first.txt".to_string(), "second.txt".to_string()],
10288            );
10289            workspace.move_item_to_pane_in_direction(
10290                &MoveItemToPaneInDirection {
10291                    direction: SplitDirection::Right,
10292                    focus: true,
10293                    clone: false,
10294                },
10295                window,
10296                cx,
10297            );
10298
10299            assert_eq!(workspace.panes.len(), 2, "A new pane should be created");
10300            assert_eq!(
10301                pane_items_paths(&workspace.panes[0], cx),
10302                vec!["first.txt".to_string()],
10303                "After moving, one item should be left in the original pane"
10304            );
10305            assert_eq!(
10306                pane_items_paths(&workspace.panes[1], cx),
10307                vec!["second.txt".to_string()],
10308                "New item should have been moved to the new pane"
10309            );
10310        });
10311
10312        let item_3 = cx.new(|cx| {
10313            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "third.txt", cx)])
10314        });
10315        workspace.update_in(cx, |workspace, window, cx| {
10316            let original_pane = workspace.panes[0].clone();
10317            workspace.set_active_pane(&original_pane, window, cx);
10318            workspace.add_item_to_active_pane(Box::new(item_3), None, true, window, cx);
10319            assert_eq!(workspace.panes.len(), 2, "No new panes were created");
10320            assert_eq!(
10321                pane_items_paths(&workspace.active_pane, cx),
10322                vec!["first.txt".to_string(), "third.txt".to_string()],
10323                "New pane should be ready to move one item out"
10324            );
10325
10326            workspace.move_item_to_pane_at_index(
10327                &MoveItemToPane {
10328                    destination: 3,
10329                    focus: true,
10330                    clone: false,
10331                },
10332                window,
10333                cx,
10334            );
10335            assert_eq!(workspace.panes.len(), 3, "A new pane should be created");
10336            assert_eq!(
10337                pane_items_paths(&workspace.active_pane, cx),
10338                vec!["first.txt".to_string()],
10339                "After moving, one item should be left in the original pane"
10340            );
10341            assert_eq!(
10342                pane_items_paths(&workspace.panes[1], cx),
10343                vec!["second.txt".to_string()],
10344                "Previously created pane should be unchanged"
10345            );
10346            assert_eq!(
10347                pane_items_paths(&workspace.panes[2], cx),
10348                vec!["third.txt".to_string()],
10349                "New item should have been moved to the new pane"
10350            );
10351        });
10352    }
10353
10354    #[gpui::test]
10355    async fn test_moving_items_can_clone_panes(cx: &mut TestAppContext) {
10356        init_test(cx);
10357
10358        let fs = FakeFs::new(cx.executor());
10359        let project = Project::test(fs, [], cx).await;
10360        let (workspace, cx) =
10361            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10362
10363        let item_1 = cx.new(|cx| {
10364            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
10365        });
10366        workspace.update_in(cx, |workspace, window, cx| {
10367            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
10368            workspace.move_item_to_pane_in_direction(
10369                &MoveItemToPaneInDirection {
10370                    direction: SplitDirection::Right,
10371                    focus: true,
10372                    clone: true,
10373                },
10374                window,
10375                cx,
10376            );
10377            workspace.move_item_to_pane_at_index(
10378                &MoveItemToPane {
10379                    destination: 3,
10380                    focus: true,
10381                    clone: true,
10382                },
10383                window,
10384                cx,
10385            );
10386
10387            assert_eq!(workspace.panes.len(), 3, "Two new panes were created");
10388            for pane in workspace.panes() {
10389                assert_eq!(
10390                    pane_items_paths(pane, cx),
10391                    vec!["first.txt".to_string()],
10392                    "Single item exists in all panes"
10393                );
10394            }
10395        });
10396
10397        // verify that the active pane has been updated after waiting for the
10398        // pane focus event to fire and resolve
10399        workspace.read_with(cx, |workspace, _app| {
10400            assert_eq!(
10401                workspace.active_pane(),
10402                &workspace.panes[2],
10403                "The third pane should be the active one: {:?}",
10404                workspace.panes
10405            );
10406        })
10407    }
10408
10409    mod register_project_item_tests {
10410
10411        use super::*;
10412
10413        // View
10414        struct TestPngItemView {
10415            focus_handle: FocusHandle,
10416        }
10417        // Model
10418        struct TestPngItem {}
10419
10420        impl project::ProjectItem for TestPngItem {
10421            fn try_open(
10422                _project: &Entity<Project>,
10423                path: &ProjectPath,
10424                cx: &mut App,
10425            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
10426                if path.path.extension().unwrap() == "png" {
10427                    Some(cx.spawn(async move |cx| cx.new(|_| TestPngItem {})))
10428                } else {
10429                    None
10430                }
10431            }
10432
10433            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
10434                None
10435            }
10436
10437            fn project_path(&self, _: &App) -> Option<ProjectPath> {
10438                None
10439            }
10440
10441            fn is_dirty(&self) -> bool {
10442                false
10443            }
10444        }
10445
10446        impl Item for TestPngItemView {
10447            type Event = ();
10448            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
10449                "".into()
10450            }
10451        }
10452        impl EventEmitter<()> for TestPngItemView {}
10453        impl Focusable for TestPngItemView {
10454            fn focus_handle(&self, _cx: &App) -> FocusHandle {
10455                self.focus_handle.clone()
10456            }
10457        }
10458
10459        impl Render for TestPngItemView {
10460            fn render(
10461                &mut self,
10462                _window: &mut Window,
10463                _cx: &mut Context<Self>,
10464            ) -> impl IntoElement {
10465                Empty
10466            }
10467        }
10468
10469        impl ProjectItem for TestPngItemView {
10470            type Item = TestPngItem;
10471
10472            fn for_project_item(
10473                _project: Entity<Project>,
10474                _pane: Option<&Pane>,
10475                _item: Entity<Self::Item>,
10476                _: &mut Window,
10477                cx: &mut Context<Self>,
10478            ) -> Self
10479            where
10480                Self: Sized,
10481            {
10482                Self {
10483                    focus_handle: cx.focus_handle(),
10484                }
10485            }
10486        }
10487
10488        // View
10489        struct TestIpynbItemView {
10490            focus_handle: FocusHandle,
10491        }
10492        // Model
10493        struct TestIpynbItem {}
10494
10495        impl project::ProjectItem for TestIpynbItem {
10496            fn try_open(
10497                _project: &Entity<Project>,
10498                path: &ProjectPath,
10499                cx: &mut App,
10500            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
10501                if path.path.extension().unwrap() == "ipynb" {
10502                    Some(cx.spawn(async move |cx| cx.new(|_| TestIpynbItem {})))
10503                } else {
10504                    None
10505                }
10506            }
10507
10508            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
10509                None
10510            }
10511
10512            fn project_path(&self, _: &App) -> Option<ProjectPath> {
10513                None
10514            }
10515
10516            fn is_dirty(&self) -> bool {
10517                false
10518            }
10519        }
10520
10521        impl Item for TestIpynbItemView {
10522            type Event = ();
10523            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
10524                "".into()
10525            }
10526        }
10527        impl EventEmitter<()> for TestIpynbItemView {}
10528        impl Focusable for TestIpynbItemView {
10529            fn focus_handle(&self, _cx: &App) -> FocusHandle {
10530                self.focus_handle.clone()
10531            }
10532        }
10533
10534        impl Render for TestIpynbItemView {
10535            fn render(
10536                &mut self,
10537                _window: &mut Window,
10538                _cx: &mut Context<Self>,
10539            ) -> impl IntoElement {
10540                Empty
10541            }
10542        }
10543
10544        impl ProjectItem for TestIpynbItemView {
10545            type Item = TestIpynbItem;
10546
10547            fn for_project_item(
10548                _project: Entity<Project>,
10549                _pane: Option<&Pane>,
10550                _item: Entity<Self::Item>,
10551                _: &mut Window,
10552                cx: &mut Context<Self>,
10553            ) -> Self
10554            where
10555                Self: Sized,
10556            {
10557                Self {
10558                    focus_handle: cx.focus_handle(),
10559                }
10560            }
10561        }
10562
10563        struct TestAlternatePngItemView {
10564            focus_handle: FocusHandle,
10565        }
10566
10567        impl Item for TestAlternatePngItemView {
10568            type Event = ();
10569            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
10570                "".into()
10571            }
10572        }
10573
10574        impl EventEmitter<()> for TestAlternatePngItemView {}
10575        impl Focusable for TestAlternatePngItemView {
10576            fn focus_handle(&self, _cx: &App) -> FocusHandle {
10577                self.focus_handle.clone()
10578            }
10579        }
10580
10581        impl Render for TestAlternatePngItemView {
10582            fn render(
10583                &mut self,
10584                _window: &mut Window,
10585                _cx: &mut Context<Self>,
10586            ) -> impl IntoElement {
10587                Empty
10588            }
10589        }
10590
10591        impl ProjectItem for TestAlternatePngItemView {
10592            type Item = TestPngItem;
10593
10594            fn for_project_item(
10595                _project: Entity<Project>,
10596                _pane: Option<&Pane>,
10597                _item: Entity<Self::Item>,
10598                _: &mut Window,
10599                cx: &mut Context<Self>,
10600            ) -> Self
10601            where
10602                Self: Sized,
10603            {
10604                Self {
10605                    focus_handle: cx.focus_handle(),
10606                }
10607            }
10608        }
10609
10610        #[gpui::test]
10611        async fn test_register_project_item(cx: &mut TestAppContext) {
10612            init_test(cx);
10613
10614            cx.update(|cx| {
10615                register_project_item::<TestPngItemView>(cx);
10616                register_project_item::<TestIpynbItemView>(cx);
10617            });
10618
10619            let fs = FakeFs::new(cx.executor());
10620            fs.insert_tree(
10621                "/root1",
10622                json!({
10623                    "one.png": "BINARYDATAHERE",
10624                    "two.ipynb": "{ totally a notebook }",
10625                    "three.txt": "editing text, sure why not?"
10626                }),
10627            )
10628            .await;
10629
10630            let project = Project::test(fs, ["root1".as_ref()], cx).await;
10631            let (workspace, cx) =
10632                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10633
10634            let worktree_id = project.update(cx, |project, cx| {
10635                project.worktrees(cx).next().unwrap().read(cx).id()
10636            });
10637
10638            let handle = workspace
10639                .update_in(cx, |workspace, window, cx| {
10640                    let project_path = (worktree_id, "one.png");
10641                    workspace.open_path(project_path, None, true, window, cx)
10642                })
10643                .await
10644                .unwrap();
10645
10646            // Now we can check if the handle we got back errored or not
10647            assert_eq!(
10648                handle.to_any().entity_type(),
10649                TypeId::of::<TestPngItemView>()
10650            );
10651
10652            let handle = workspace
10653                .update_in(cx, |workspace, window, cx| {
10654                    let project_path = (worktree_id, "two.ipynb");
10655                    workspace.open_path(project_path, None, true, window, cx)
10656                })
10657                .await
10658                .unwrap();
10659
10660            assert_eq!(
10661                handle.to_any().entity_type(),
10662                TypeId::of::<TestIpynbItemView>()
10663            );
10664
10665            let handle = workspace
10666                .update_in(cx, |workspace, window, cx| {
10667                    let project_path = (worktree_id, "three.txt");
10668                    workspace.open_path(project_path, None, true, window, cx)
10669                })
10670                .await;
10671            assert!(handle.is_err());
10672        }
10673
10674        #[gpui::test]
10675        async fn test_register_project_item_two_enter_one_leaves(cx: &mut TestAppContext) {
10676            init_test(cx);
10677
10678            cx.update(|cx| {
10679                register_project_item::<TestPngItemView>(cx);
10680                register_project_item::<TestAlternatePngItemView>(cx);
10681            });
10682
10683            let fs = FakeFs::new(cx.executor());
10684            fs.insert_tree(
10685                "/root1",
10686                json!({
10687                    "one.png": "BINARYDATAHERE",
10688                    "two.ipynb": "{ totally a notebook }",
10689                    "three.txt": "editing text, sure why not?"
10690                }),
10691            )
10692            .await;
10693            let project = Project::test(fs, ["root1".as_ref()], cx).await;
10694            let (workspace, cx) =
10695                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10696            let worktree_id = project.update(cx, |project, cx| {
10697                project.worktrees(cx).next().unwrap().read(cx).id()
10698            });
10699
10700            let handle = workspace
10701                .update_in(cx, |workspace, window, cx| {
10702                    let project_path = (worktree_id, "one.png");
10703                    workspace.open_path(project_path, None, true, window, cx)
10704                })
10705                .await
10706                .unwrap();
10707
10708            // This _must_ be the second item registered
10709            assert_eq!(
10710                handle.to_any().entity_type(),
10711                TypeId::of::<TestAlternatePngItemView>()
10712            );
10713
10714            let handle = workspace
10715                .update_in(cx, |workspace, window, cx| {
10716                    let project_path = (worktree_id, "three.txt");
10717                    workspace.open_path(project_path, None, true, window, cx)
10718                })
10719                .await;
10720            assert!(handle.is_err());
10721        }
10722    }
10723
10724    fn pane_items_paths(pane: &Entity<Pane>, cx: &App) -> Vec<String> {
10725        pane.read(cx)
10726            .items()
10727            .flat_map(|item| {
10728                item.project_paths(cx)
10729                    .into_iter()
10730                    .map(|path| path.path.to_string_lossy().to_string())
10731            })
10732            .collect()
10733    }
10734
10735    pub fn init_test(cx: &mut TestAppContext) {
10736        cx.update(|cx| {
10737            let settings_store = SettingsStore::test(cx);
10738            cx.set_global(settings_store);
10739            theme::init(theme::LoadThemes::JustBase, cx);
10740            language::init(cx);
10741            crate::init_settings(cx);
10742            Project::init_settings(cx);
10743        });
10744    }
10745
10746    fn dirty_project_item(id: u64, path: &str, cx: &mut App) -> Entity<TestProjectItem> {
10747        let item = TestProjectItem::new(id, path, cx);
10748        item.update(cx, |item, _| {
10749            item.is_dirty = true;
10750        });
10751        item
10752    }
10753}