add workspace

crates/workspace/src/views/mod.rs

@@ -1,3 +1,5 @@
 mod repo_list;
+mod sidebar;
 
 pub use repo_list::RepoListView;
+pub use sidebar::SidebarPanel;

crates/workspace/src/views/repo_list.rs

@@ -1,8 +1,9 @@
 use gpui::prelude::*;
 use gpui::{
-    AnyElement, App, Context, Entity, Render, SharedString, Subscription, Window, div, px,
-    uniform_list,
+    AnyElement, App, Context, Entity, EventEmitter, FocusHandle, Focusable, Render, SharedString,
+    Subscription, Window, div, px, uniform_list,
 };
+use gpui_component::dock::{Panel, PanelEvent};
 use gpui_component::{ActiveTheme, StyledExt};
 use signed_core::Announcement;
 use signed_state::{ProfileStore, RepoListStore};
@@ -10,6 +11,7 @@ use signed_state::{ProfileStore, RepoListStore};
 /// Browse all announced repositories (works anonymously).
 pub struct RepoListView {
     store: Entity<RepoListStore>,
+    focus_handle: FocusHandle,
     _subscription: Subscription,
 }
 
@@ -20,11 +22,30 @@ impl RepoListView {
 
         Self {
             store,
+            focus_handle: cx.focus_handle(),
             _subscription: subscription,
         }
     }
 }
 
+impl Panel for RepoListView {
+    fn panel_name(&self) -> &'static str {
+        "repo_list"
+    }
+
+    fn title(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
+        "Explore"
+    }
+}
+
+impl EventEmitter<PanelEvent> for RepoListView {}
+
+impl Focusable for RepoListView {
+    fn focus_handle(&self, _cx: &App) -> FocusHandle {
+        self.focus_handle.clone()
+    }
+}
+
 fn render_card(announcement: &Announcement, cx: &mut App) -> AnyElement {
     let name = announcement
         .name

crates/workspace/src/views/sidebar.rs

@@ -0,0 +1,77 @@
+use std::sync::Arc;
+
+use gpui::prelude::*;
+use gpui::{App, Context, EventEmitter, FocusHandle, Focusable, Render, WeakEntity, Window};
+use gpui_component::button::Button;
+use gpui_component::dock::{DockArea, DockPlacement, Panel, PanelEvent};
+use gpui_component::v_flex;
+
+use crate::views::RepoListView;
+
+/// Left-dock panel with navigation entries. Entries open content panels in
+/// the dock area.
+pub struct SidebarPanel {
+    focus_handle: FocusHandle,
+    dock_area: WeakEntity<DockArea>,
+    explore: Option<WeakEntity<RepoListView>>,
+}
+
+impl SidebarPanel {
+    pub fn new(dock_area: WeakEntity<DockArea>, cx: &mut Context<Self>) -> Self {
+        Self {
+            focus_handle: cx.focus_handle(),
+            dock_area,
+            explore: None,
+        }
+    }
+
+    /// Open the Explore (repository list) panel in the center of the dock
+    /// area. No-op if it's already open.
+    pub fn open_explore(&mut self, window: &mut Window, cx: &mut Context<Self>) {
+        if self.explore.as_ref().and_then(WeakEntity::upgrade).is_some() {
+            return;
+        }
+
+        let panel = cx.new(|cx| RepoListView::new(window, cx));
+        self.explore = Some(panel.downgrade());
+
+        self.dock_area
+            .update(cx, |dock_area, cx| {
+                dock_area.add_panel(Arc::new(panel), DockPlacement::Center, None, window, cx);
+            })
+            .ok();
+    }
+}
+
+impl Panel for SidebarPanel {
+    fn panel_name(&self) -> &'static str {
+        "sidebar"
+    }
+
+    fn title(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
+        "Navigation"
+    }
+
+    fn closable(&self, _cx: &App) -> bool {
+        false
+    }
+}
+
+impl EventEmitter<PanelEvent> for SidebarPanel {}
+
+impl Focusable for SidebarPanel {
+    fn focus_handle(&self, _cx: &App) -> FocusHandle {
+        self.focus_handle.clone()
+    }
+}
+
+impl Render for SidebarPanel {
+    fn render(&mut self, _window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
+        v_flex().gap_2().p_2().child(
+            Button::new("explore")
+                .label("Explore")
+                .w_full()
+                .on_click(cx.listener(|this, _, window, cx| this.open_explore(window, cx))),
+        )
+    }
+}