Add flatten_tabs_in_tabs

src/lib.rs

@@ -171,6 +171,9 @@ pub struct SimplificationOptions {
     /// If a horizontal container contain another horizontal container, join them?
     /// Same for vertical containers. Does NOT apply to grid container or tab containers.
     pub join_nested_linear_containers: bool,
+
+    // Flatten tabs in tabs?
+    pub flatten_tabs_in_tabs: bool,
 }
 
 impl SimplificationOptions {
@@ -192,6 +195,7 @@ impl SimplificationOptions {
         prune_single_child_containers: false,
         all_panes_must_have_tabs: false,
         join_nested_linear_containers: false,
+        flatten_tabs_in_tabs: false,
     };
 }
 
@@ -204,6 +208,7 @@ impl Default for SimplificationOptions {
             prune_single_child_containers: true,
             all_panes_must_have_tabs: false,
             join_nested_linear_containers: true,
+            flatten_tabs_in_tabs: false,
         }
     }
 }

src/tiles.rs

@@ -461,6 +461,28 @@ impl<Pane> Tiles<Pane> {
                         }
                     }
                 }
+
+                if options.flatten_tabs_in_tabs {
+                    let mut found = false;
+                    let mut new_children = Vec::new();
+
+                    for &child_id in container.children() {
+                        if let Some(Tile::Container(Container::Tabs(child_tabs))) =
+                            self.get(child_id)
+                        {
+                            new_children.extend(child_tabs.children.iter().copied());
+                            found = true;
+                        } else {
+                            new_children.push(child_id);
+                        }
+                    }
+
+                    if found {
+                        let new_container =
+                            self.insert_new(Tile::Container(Container::new_tabs(new_children)));
+                        return SimplifyAction::Replace(new_container);
+                    }
+                }
             } else {
                 if options.join_nested_linear_containers {
                     if let Container::Linear(parent) = container {