feat: redesign the dock and tabbar (#22)

Reviewed-on: #22

crates/dock/src/dock_area.rs

@@ -11,22 +11,19 @@ use gpui::{
 };
 use gpui_base::dock::{
     DockArea, DockAreaRenderer, DockContext, DockEvent, DockPlacement, NodeId, PanelState,
-    PanelView, TabGroupRenderer, TilesRenderer,
+    PanelView, TabGroupRenderer,
 };
 use gpui_base::resize_handle;
-use gpui_component::scroll::ScrollbarMode;
 use gpui_component::{ActiveTheme as _, Side};
 
 use crate::invalid_panel::InvalidPanel;
+use crate::panel_handle;
 use crate::tab_panel::SignedTabGroupSkin;
-use crate::tiles::SignedTilesSkin;
-use crate::{TAB_BAR_HEIGHT, panel_handle};
 
 /// State the skin shares with its per-container renderers.
 pub(crate) struct SkinShared {
     area: WeakEntity<DockArea>,
     toggle_button_visible: Cell<bool>,
-    tiles_scrollbar_mode: Cell<Option<ScrollbarMode>>,
     /// The dock whose resize handle is being dragged, if any. Only one can be.
     resizing_dock: Cell<Option<DockPlacement>>,
 }
@@ -40,10 +37,6 @@ impl SkinShared {
         self.toggle_button_visible.get()
     }
 
-    pub(crate) fn tiles_scrollbar_mode(&self) -> Option<ScrollbarMode> {
-        self.tiles_scrollbar_mode.get()
-    }
-
     pub(crate) fn resizing_dock(&self) -> &Cell<Option<DockPlacement>> {
         &self.resizing_dock
     }
@@ -73,7 +66,6 @@ impl SignedDockSkin {
             shared: Rc::new(SkinShared {
                 area: cx.weak_entity(),
                 toggle_button_visible: Cell::new(true),
-                tiles_scrollbar_mode: Cell::new(None),
                 resizing_dock: Cell::new(None),
             }),
         })
@@ -92,16 +84,6 @@ impl SignedDockSkin {
         self.shared.toggle_button_visible.set(visible);
         self.shared.notify(cx);
     }
-
-    /// When a tiles canvas shows its scrollbar. `None` follows the theme.
-    pub fn tiles_scrollbar_mode(&self) -> Option<ScrollbarMode> {
-        self.shared.tiles_scrollbar_mode()
-    }
-
-    pub fn set_tiles_scrollbar_mode(&self, mode: Option<ScrollbarMode>, cx: &mut App) {
-        self.shared.tiles_scrollbar_mode.set(mode);
-        self.shared.notify(cx);
-    }
 }
 
 /// Payload a dock's resize handle drags.
@@ -154,16 +136,10 @@ impl DockAreaRenderer for SignedDockSkin {
         window: &mut Window,
         cx: &mut App,
     ) -> AnyElement {
-        let placement = dock.placement();
-
         div()
             .flex()
             .size_full()
             .relative()
-            // A closed bottom dock keeps a strip, and that strip is the tab bar.
-            .when(!dock.is_open() && placement.is_bottom(), |this| {
-                this.h(TAB_BAR_HEIGHT)
-            })
             .child(content)
             .child(self.render_resize_handle(dock, window, cx))
             .child(DockResizeTracker {
@@ -190,10 +166,6 @@ impl DockAreaRenderer for SignedDockSkin {
     fn tab_group_renderer(&self) -> Rc<dyn TabGroupRenderer> {
         Rc::new(SignedTabGroupSkin::new(self.shared().clone()))
     }
-
-    fn tiles_renderer(&self) -> Rc<dyn TilesRenderer> {
-        Rc::new(SignedTilesSkin::new(self.shared().clone()))
-    }
 }
 
 impl SignedDockSkin {