Add mouse support to radio view

src/views/radio.rs

@@ -1,6 +1,6 @@
 use {Printer, With};
 use direction::Direction;
-use event::{Event, EventResult, Key};
+use event::{Event, EventResult, Key, MouseButton, MouseEvent};
 use std::cell::RefCell;
 use std::rc::Rc;
 use theme::ColorStyle;
@@ -144,16 +144,20 @@ impl<T> RadioButton<T> {
             printer.print((4, 0), &self.label);
         }
     }
-}
 
-impl<T> View for RadioButton<T> {
+    fn req_size(&self) -> Vec2 {
-    fn required_size(&mut self, _: Vec2) -> Vec2 {
         if self.label.is_empty() {
             Vec2::new(3, 1)
         } else {
             Vec2::new(3 + 1 + self.label.len(), 1)
         }
     }
+}
+
+impl<T> View for RadioButton<T> {
+    fn required_size(&mut self, _: Vec2) -> Vec2 {
+        self.req_size()
+    }
 
     fn take_focus(&mut self, _: Direction) -> bool {
         self.enabled
@@ -179,6 +183,15 @@ impl<T> View for RadioButton<T> {
                 self.select();
                 EventResult::Consumed(None)
             }
+            Event::Mouse {
+                event: MouseEvent::Release(MouseButton::Left),
+                position,
+                offset,
+            } if position.fits_in_rect(offset, self.req_size()) =>
+            {
+                self.select();
+                EventResult::Consumed(None)
+            }
             _ => EventResult::Ignored,
         }
     }