Prevent multiple code action popups

helix-term/src/commands.rs

@@ -2792,11 +2792,7 @@ pub mod cmd {
                         Box::new(move |editor: &mut Editor, compositor: &mut Compositor| {
                             let contents = ui::Markdown::new(contents, editor.syn_loader.clone());
                             let popup = Popup::new("hover", contents);
-                            if let Some(doc_popup) = compositor.find_id("hover") {
+                            compositor.replace_or_push("hover", Box::new(popup));
-                                *doc_popup = popup;
-                            } else {
-                                compositor.push(Box::new(popup));
-                            }
                         });
                     Ok(call)
                 };
@@ -3537,7 +3533,7 @@ pub fn code_action(cx: &mut Context) {
                 vertical: 1,
                 horizontal: 1,
             });
-            compositor.push(Box::new(popup))
+            compositor.replace_or_push("code-action", Box::new(popup));
         },
     )
 }
@@ -5465,11 +5461,7 @@ fn hover(cx: &mut Context) {
                 let contents =
                     ui::Markdown::new(contents, editor.syn_loader.clone()).style_group("hover");
                 let popup = Popup::new("hover", contents);
-                if let Some(doc_popup) = compositor.find_id("hover") {
+                compositor.replace_or_push("hover", Box::new(popup));
-                    *doc_popup = popup;
-                } else {
-                    compositor.push(Box::new(popup));
-                }
             }
         },
     );

helix-term/src/compositor.rs

@@ -126,6 +126,16 @@ impl Compositor {
         self.layers.push(layer);
     }
 
+    /// Replace a component that has the given `id` with the new layer and if
+    /// no component is found, push the layer normally.
+    pub fn replace_or_push(&mut self, id: &'static str, layer: Box<dyn Component>) {
+        if let Some(component) = self.find_id(id) {
+            *component = layer;
+        } else {
+            self.push(layer)
+        }
+    }
+
     pub fn pop(&mut self) -> Option<Box<dyn Component>> {
         self.layers.pop()
     }