Detach active split panes

crates/ely_browser_core/src/state/commands.rs

@@ -173,6 +173,9 @@ impl BrowserCore {
             "split-grid" | "split grid" => {
                 Ok(self.set_active_split_axis(SplitAxis::Grid)?.is_some())
             }
+            "detach-split-pane" | "detach split pane" | "detach-pane" | "detach pane" => {
+                self.detach_active_split_pane()
+            }
             "save-split-view" | "save split view" => Ok(self.save_active_split_view()?.is_some()),
             "split-tab-group" | "split tab group" | "tab-group-to-split" | "tab group to split" => {
                 Ok(self.split_active_tab_group()?.is_some())

crates/ely_browser_core/src/state/splits.rs

@@ -82,6 +82,21 @@ impl BrowserCore {
         Ok(Some(split_id))
     }
 
+    pub fn detach_active_split_pane(&mut self) -> Result<bool, CoreError> {
+        let active_tab = self.active_tab()?;
+        let active_tab_id = active_tab.id().clone();
+        let Some(split_id) = active_tab.split_id().cloned() else {
+            return Ok(false);
+        };
+        if !self.split_layouts.iter().any(|layout| layout.id() == &split_id) {
+            return Err(CoreError::SplitNotFound { id: split_id });
+        }
+
+        self.detach_tab_from_split(&active_tab_id);
+        self.refresh_saved_split_title(&split_id)?;
+        Ok(true)
+    }
+
     pub fn split_active_tab_right(&mut self) -> Result<SplitId, CoreError> {
         let active_index = self.active_tab_index()?;
         let active_tab_id = self.tabs[active_index].id().clone();
@@ -200,6 +215,21 @@ impl BrowserCore {
         })
     }
 
+    fn refresh_saved_split_title(&mut self, split_id: &SplitId) -> Result<(), CoreError> {
+        let Some(layout_index) =
+            self.split_layouts.iter().position(|layout| layout.id() == split_id)
+        else {
+            return Ok(());
+        };
+        if !self.split_layouts[layout_index].saved() {
+            return Ok(());
+        }
+
+        let title = self.active_split_title(split_id)?;
+        self.split_layouts[layout_index].save(title);
+        Ok(())
+    }
+
     pub(super) fn saved_split_id_for_tab(&self, tab_id: &TabId) -> Option<SplitId> {
         let split_id =
             self.tabs.iter().find(|tab| tab.id() == tab_id).and_then(|tab| tab.split_id())?;