WIP visual keyboard hints

crates/gpui/src/platform/linux/x11/client.rs

@@ -824,7 +824,7 @@ impl X11Client {
             Event::XkbStateNotify(event) => {
                 let mut state = self.0.borrow_mut();
                 state.xkb.update_mask(
-                    event.base_mods.into(),
+                    dbg!(event).base_mods.into(),
                     event.latched_mods.into(),
                     event.locked_mods.into(),
                     event.base_group as u32,
@@ -836,7 +836,7 @@ impl X11Client {
                     latched_layout: event.latched_group as u32,
                     locked_layout: event.locked_group.into(),
                 };
-                let modifiers = Modifiers::from_xkb(&state.xkb);
+                let modifiers = dbg!(Modifiers::from_xkb(&state.xkb));
                 if state.modifiers == modifiers {
                     drop(state);
                 } else {
@@ -919,7 +919,7 @@ impl X11Client {
                 }));
             }
             Event::KeyRelease(event) => {
-                let window = self.get_window(event.event)?;
+                let window = self.get_window(dbg!(event).event)?;
                 let mut state = self.0.borrow_mut();
 
                 let modifiers = modifiers_from_state(event.state);

crates/gpui/src/window.rs

@@ -3216,24 +3216,11 @@ impl<'a> WindowContext<'a> {
             self.draw();
         }
 
-        let node_id = self
-            .window
-            .focus
-            .and_then(|focus_id| {
-                self.window
-                    .rendered_frame
-                    .dispatch_tree
-                    .focusable_node_id(focus_id)
-            })
-            .unwrap_or_else(|| self.window.rendered_frame.dispatch_tree.root_node_id());
-
         let dispatch_path = self
             .window
             .rendered_frame
             .dispatch_tree
-            .dispatch_path(node_id);
-
-        let mut keystroke: Option<Keystroke> = None;
+            .dispatch_path(self.focused_node_id());
 
         if let Some(event) = event.downcast_ref::<ModifiersChangedEvent>() {
             if event.modifiers.number_of_modifiers() == 0
@@ -3249,30 +3236,36 @@ impl<'a> WindowContext<'a> {
                     _ => None,
                 };
                 if let Some(key) = key {
-                    keystroke = Some(Keystroke {
+                    let keystroke = Keystroke {
                         key: key.to_string(),
                         ime_key: None,
                         modifiers: Modifiers::default(),
-                    });
+                    };
+                    self.finish_dispatch_keystroke(keystroke, &dispatch_path);
                 }
             }
 
             if self.window.pending_modifier.modifiers.number_of_modifiers() == 0
                 && event.modifiers.number_of_modifiers() == 1
             {
-                self.window.pending_modifier.saw_keystroke = false
+                self.window.pending_modifier.saw_keystroke = false;
             }
-            self.window.pending_modifier.modifiers = event.modifiers
+            self.window.pending_modifier.modifiers = event.modifiers;
+
+            self.finish_dispatch_key_event(event, &dispatch_path);
         } else if let Some(key_down_event) = event.downcast_ref::<KeyDownEvent>() {
             self.window.pending_modifier.saw_keystroke = true;
-            keystroke = Some(key_down_event.keystroke.clone());
+            self.finish_dispatch_keystroke(key_down_event.keystroke.clone(), &dispatch_path);
+        } else {
+            self.finish_dispatch_key_event(event, &dispatch_path);
         }
+    }
 
-        let Some(keystroke) = keystroke else {
-            self.finish_dispatch_key_event(event, dispatch_path);
-            return;
-        };
-
+    fn finish_dispatch_keystroke(
+        &self,
+        keystroke: Keystroke,
+        dispatch_path: &SmallVec<[DispatchNodeId; 32]>,
+    ) {
         let mut currently_pending = self.window.pending_input.take().unwrap_or_default();
         if currently_pending.focus.is_some() && currently_pending.focus != self.window.focus {
             currently_pending = PendingInput::default();
@@ -3306,7 +3299,8 @@ impl<'a> WindowContext<'a> {
                         .window
                         .rendered_frame
                         .dispatch_tree
-                        .dispatch_path(node_id);
+                        // FIXME: valid?
+                        .dispatch_path(cx.focused_node_id());
 
                     let to_replay = cx
                         .window
@@ -3334,13 +3328,13 @@ impl<'a> WindowContext<'a> {
             }
         }
 
-        self.finish_dispatch_key_event(event, dispatch_path)
+        self.finish_dispatch_key_event(event, &dispatch_path)
     }
 
     fn finish_dispatch_key_event(
         &mut self,
         event: &dyn Any,
-        dispatch_path: SmallVec<[DispatchNodeId; 32]>,
+        dispatch_path: &SmallVec<[DispatchNodeId; 32]>,
     ) {
         self.dispatch_key_down_up_event(event, &dispatch_path);
         if !self.propagate_event {

crates/tab_switcher/src/tab_switcher.rs

@@ -372,7 +372,7 @@ impl PickerDelegate for TabSwitcherDelegate {
             icon.color(git_status_color.unwrap_or_default())
         });
 
-        let indicator = render_item_indicator(tab_match.item.boxed_clone(), cx);
+        let indicator = render_item_indicator(tab_match.item.boxed_clone(), None, cx);
         let indicator_color = if let Some(ref indicator) = indicator {
             indicator.color
         } else {

crates/ui/src/components/indicator.rs

@@ -7,6 +7,7 @@ enum IndicatorKind {
     Dot,
     Bar,
     Icon(AnyIcon),
+    Character(char),
 }
 
 #[derive(IntoElement)]
@@ -37,12 +38,18 @@ impl Indicator {
         }
     }
 
+    pub fn character(character: char) -> Self {
+        Self {
+            kind: IndicatorKind::Character(character),
+            color: Color::Default,
+        }
+    }
+
     pub fn color(mut self, color: Color) -> Self {
         self.color = color;
         self
     }
 }
-
 impl RenderOnce for Indicator {
     fn render(self, cx: &mut WindowContext) -> impl IntoElement {
         let container = div().flex_none();
@@ -60,6 +67,9 @@ impl RenderOnce for Indicator {
                 .h_1p5()
                 .rounded_t_md()
                 .bg(self.color.color(cx)),
+            IndicatorKind::Character(character) => container
+                .text_color(self.color.color(cx))
+                .child(character.to_string()),
         }
     }
 }

crates/workspace/src/pane.rs

@@ -1835,6 +1835,18 @@ impl Pane {
         focus_handle: &FocusHandle,
         cx: &mut ViewContext<'_, Pane>,
     ) -> impl IntoElement {
+        let pending_keystrokes = cx.pending_input_keystrokes().unwrap_or(&[]);
+        let char_to_type = cx.bindings_for_action(&ActivateItem(ix)).iter().find_map(
+            |keybinding| match keybinding.remaining_keystrokes(pending_keystrokes) {
+                Some([keystroke])
+                    if keystroke.modifiers == cx.modifiers() && keystroke.key.len() == 1 =>
+                {
+                    keystroke.key.chars().next()
+                }
+                _ => None,
+            },
+        );
+
         let project_path = item.project_path(cx);
 
         let is_active = ix == self.active_item_index;
@@ -1866,7 +1878,7 @@ impl Pane {
 
         let icon = item.tab_icon(cx);
         let close_side = &ItemSettings::get_global(cx).close_position;
-        let indicator = render_item_indicator(item.boxed_clone(), cx);
+        let indicator = render_item_indicator(item.boxed_clone(), char_to_type, cx);
         let item_id = item.item_id();
         let is_first_item = ix == 0;
         let is_last_item = ix == self.items.len() - 1;
@@ -2997,16 +3009,22 @@ pub fn tab_details(items: &[Box<dyn ItemHandle>], cx: &AppContext) -> Vec<usize>
     tab_details
 }
 
-pub fn render_item_indicator(item: Box<dyn ItemHandle>, cx: &WindowContext) -> Option<Indicator> {
-    maybe!({
-        let indicator_color = match (item.has_conflict(cx), item.is_dirty(cx)) {
-            (true, _) => Color::Warning,
-            (_, true) => Color::Accent,
-            (false, false) => return None,
-        };
+pub fn render_item_indicator(
+    item: Box<dyn ItemHandle>,
+    char_to_type: Option<char>,
+    cx: &WindowContext,
+) -> Option<Indicator> {
+    if let Some(char) = char_to_type {
+        return Some(Indicator::character(char));
+    }
 
-        Some(Indicator::dot().color(indicator_color))
-    })
+    let indicator_color = match (item.has_conflict(cx), item.is_dirty(cx)) {
+        (true, _) => Color::Warning,
+        (_, true) => Color::Accent,
+        (false, false) => return None,
+    };
+
+    Some(Indicator::dot().color(indicator_color))
 }
 
 impl Render for DraggedTab {