Remove push_maybe from stack widget

devtools/src/lib.rs

@@ -344,11 +344,10 @@ where
                     .background(Color::BLACK.scale_alpha(0.8))
             });
 
-            Some(setup)
+            Some(themer(theme(), Element::from(setup).map(Event::Message)))
         } else {
             None
-        }
+        };
-        .map(|setup| themer(theme(), Element::from(setup).map(Event::Message)));
 
         let notification = self
             .show_notification
@@ -359,12 +358,8 @@ where
                         "Types have changed. Restart to re-enable hotpatching.",
                     )
                 })
-            });
+            })
-
+            .map(|notification| {
-        stack![view]
-            .height(Fill)
-            .push_maybe(setup.map(opaque))
-            .push_maybe(notification.map(|notification| {
                 themer(
                     theme(),
                     bottom_right(opaque(
@@ -373,7 +368,11 @@ where
                             .style(container::dark),
                     )),
                 )
-            }))
+            });
+
+        stack![view, setup, notification]
+            .width(Fill)
+            .height(Fill)
             .into()
     }
 

widget/src/stack.rs

@@ -84,30 +84,20 @@ where
         child: impl Into<Element<'a, Message, Theme, Renderer>>,
     ) -> Self {
         let child = child.into();
+        let child_size = child.as_widget().size_hint();
 
-        if self.children.is_empty() {
+        if !child_size.is_void() {
-            let child_size = child.as_widget().size_hint();
+            if self.children.is_empty() {
+                self.width = self.width.enclose(child_size.width);
+                self.height = self.height.enclose(child_size.height);
+            }
 
-            self.width = self.width.enclose(child_size.width);
+            self.children.push(child);
-            self.height = self.height.enclose(child_size.height);
         }
 
-        self.children.push(child);
         self
     }
 
-    /// Adds an element to the [`Stack`], if `Some`.
-    pub fn push_maybe(
-        self,
-        child: Option<impl Into<Element<'a, Message, Theme, Renderer>>>,
-    ) -> Self {
-        if let Some(child) = child {
-            self.push(child)
-        } else {
-            self
-        }
-    }
-
     /// Extends the [`Stack`] with the given children.
     pub fn extend(
         self,