add action for floating panes

Author: DawidPietrykowski

zellij-server/src/panes/floating_panes/mod.rs

@@ -635,6 +635,13 @@ impl FloatingPanes {
         }
     }
 
+    pub fn focus_last_pane(&mut self, client_id: ClientId) {
+        if let Some(pane_id) = self.active_panes.get_last(&client_id).copied() {
+            self.focus_pane(pane_id, client_id);
+            self.set_force_render();
+        }
+    }
+
     pub fn move_active_pane_down(&mut self, client_id: ClientId) {
         if let Some(active_pane_id) = self.active_panes.get(&client_id) {
             self.move_pane_down(*active_pane_id);
@@ -829,6 +836,11 @@ impl FloatingPanes {
         self.set_force_render();
     }
     pub fn focus_pane(&mut self, pane_id: PaneId, client_id: ClientId) {
+        if let Some(focused_pane) = self.active_panes.get(&client_id) {
+            if pane_id != *focused_pane {
+                self.active_panes.set_last_pane(client_id, *focused_pane);
+            }
+        }
         let pane_is_selectable = self
             .panes
             .get(&pane_id)

zellij-server/src/tab/mod.rs

@@ -3000,7 +3000,10 @@ impl Tab {
         if !self.has_selectable_panes() {
             return;
         }
-        if self.tiled_panes.fullscreen_is_active() {
+        if self.floating_panes.panes_are_visible() {
+            self.floating_panes.focus_last_pane(client_id);
+        }
+        else if self.tiled_panes.fullscreen_is_active() {
             self.switch_last_pane_fullscreen(client_id);
             return;
         }
@@ -4999,7 +5002,11 @@ impl Tab {
                 .with_context(err_context)?;
             self.floating_panes.add_pane(pane_id, pane);
             if should_focus_new_pane {
-                self.floating_panes.focus_pane_for_all_clients(pane_id);
+                if let Some(client_id) = client_id {
+                    self.floating_panes.focus_pane(pane_id, client_id);
+                } else {
+                    self.floating_panes.focus_pane_for_all_clients(pane_id);
+                }
             }
         }
         if self.auto_layout && !self.swap_layouts.is_floating_damaged() {