debugger: Add console indicator and resolve debug configs from NewSessionModal (#28489)

The debug console will now show an indicator when it's unopened and
there's unread messages.

`NewSessionModal` attempts to resolve debug configurations before using
the config to start debugging. This allows users to use zed's task
variables in the modal prompt.

I had to invert tasks_ui dependency on debugger_ui so `NewSessionModal`
could get the correct `TaskContexts` by calling tasks_ui functions. A
consequence of this workspace has a new event `ShowAttachModal` that I'm
not a big fan of. @osiewicz if you have time could you please take a
look to see if there's a way around adding the event. I'm open to pair
on it too.

Release Notes:

- N/A

crates/debugger_ui/src/session/running.rs

@@ -26,8 +26,8 @@ use rpc::proto::ViewId;
 use settings::Settings;
 use stack_frame_list::StackFrameList;
 use ui::{
-    App, Context, ContextMenu, DropdownMenu, InteractiveElement, IntoElement, ParentElement,
-    Render, SharedString, Styled, Window, div, h_flex, v_flex,
+    AnyElement, App, Context, ContextMenu, DropdownMenu, InteractiveElement, IntoElement, Label,
+    LabelCommon as _, ParentElement, Render, SharedString, Styled, Window, div, h_flex, v_flex,
 };
 use util::ResultExt;
 use variable_list::VariableList;
@@ -86,6 +86,7 @@ struct SubView {
     inner: AnyView,
     pane_focus_handle: FocusHandle,
     tab_name: SharedString,
+    show_indicator: Box<dyn Fn(&App) -> bool>,
 }
 
 impl SubView {
@@ -93,12 +94,14 @@ impl SubView {
         pane_focus_handle: FocusHandle,
         view: AnyView,
         tab_name: SharedString,
+        show_indicator: Option<Box<dyn Fn(&App) -> bool>>,
         cx: &mut App,
     ) -> Entity<Self> {
         cx.new(|_| Self {
             tab_name,
             inner: view,
             pane_focus_handle,
+            show_indicator: show_indicator.unwrap_or(Box::new(|_| false)),
         })
     }
 }
@@ -110,8 +113,27 @@ impl Focusable for SubView {
 impl EventEmitter<()> for SubView {}
 impl Item for SubView {
     type Event = ();
-    fn tab_content_text(&self, _window: &Window, _cx: &App) -> Option<SharedString> {
-        Some(self.tab_name.clone())
+
+    fn tab_content(
+        &self,
+        params: workspace::item::TabContentParams,
+        _: &Window,
+        cx: &App,
+    ) -> AnyElement {
+        let label = Label::new(self.tab_name.clone())
+            .color(params.text_color())
+            .into_any_element();
+
+        if !params.selected && self.show_indicator.as_ref()(cx) {
+            return h_flex()
+                .justify_between()
+                .child(ui::Indicator::dot())
+                .gap_2()
+                .child(label)
+                .into_any_element();
+        }
+
+        label
     }
 }
 
@@ -315,6 +337,7 @@ impl RunningState {
                     this.focus_handle(cx),
                     stack_frame_list.clone().into(),
                     SharedString::new_static("Frames"),
+                    None,
                     cx,
                 )),
                 true,
@@ -329,6 +352,7 @@ impl RunningState {
                     breakpoints.focus_handle(cx),
                     breakpoints.into(),
                     SharedString::new_static("Breakpoints"),
+                    None,
                     cx,
                 )),
                 true,
@@ -346,6 +370,7 @@ impl RunningState {
                     variable_list.focus_handle(cx),
                     variable_list.clone().into(),
                     SharedString::new_static("Variables"),
+                    None,
                     cx,
                 )),
                 true,
@@ -359,6 +384,7 @@ impl RunningState {
                     this.focus_handle(cx),
                     module_list.clone().into(),
                     SharedString::new_static("Modules"),
+                    None,
                     cx,
                 )),
                 false,
@@ -371,11 +397,17 @@ impl RunningState {
         });
         let rightmost_pane = new_debugger_pane(workspace.clone(), project.clone(), window, cx);
         rightmost_pane.update(cx, |this, cx| {
+            let weak_console = console.downgrade();
             this.add_item(
                 Box::new(SubView::new(
                     this.focus_handle(cx),
                     console.clone().into(),
                     SharedString::new_static("Console"),
+                    Some(Box::new(move |cx| {
+                        weak_console
+                            .read_with(cx, |console, cx| console.show_indicator(cx))
+                            .unwrap_or_default()
+                    })),
                     cx,
                 )),
                 true,