Improve ActiveTheme trait to impl ViewContent and ModelContext to support auto import. (#49)

crates/ui/src/dropdown.rs

@@ -25,7 +25,7 @@ use crate::{
     h_flex,
     list::{self, List, ListDelegate, ListItem},
     styled_ext::Sizeful,
-    theme::ActiveTheme,
+    theme::ActiveTheme as _,
     Clickable as _, Icon, IconName, Size, StyledExt,
 };
 

crates/ui/src/theme.rs

@@ -1,5 +1,8 @@
+use std::ops::Deref;
+
 use gpui::{
-    hsla, point, AppContext, BoxShadow, Global, Hsla, Pixels, SharedString, WindowAppearance,
+    hsla, point, AppContext, BoxShadow, Global, Hsla, ModelContext, Pixels, SharedString,
+    ViewContext, WindowAppearance,
 };
 
 pub trait ActiveTheme {
@@ -12,6 +15,18 @@ impl ActiveTheme for AppContext {
     }
 }
 
+impl<'a, V> ActiveTheme for ViewContext<'a, V> {
+    fn theme(&self) -> &Theme {
+        self.deref().theme()
+    }
+}
+
+impl<'a, V> ActiveTheme for ModelContext<'a, V> {
+    fn theme(&self) -> &Theme {
+        self.deref().theme()
+    }
+}
+
 /// Make a [gpui::Hsla] color.
 ///
 /// h - 0 - 360.0