layout: Return bool from activate_window()

Avoid an extra has_window() call.

src/layout/mod.rs

@@ -1372,9 +1372,8 @@ impl<W: LayoutElement> Layout<W> {
 
         for (monitor_idx, mon) in monitors.iter_mut().enumerate() {
             for (workspace_idx, ws) in mon.workspaces.iter_mut().enumerate() {
-                if ws.has_window(window) {
+                if ws.activate_window(window) {
                     *active_monitor_idx = monitor_idx;
-                    ws.activate_window(window);
 
                     // If currently in the middle of a vertical swipe between the target workspace
                     // and some other, don't switch the workspace.

src/layout/scrolling.rs

@@ -1175,16 +1175,17 @@ impl<W: LayoutElement> ScrollingSpace<W> {
         (from_view_offset - new_view_offset).abs() / self.working_area.size.w
     }
 
-    pub fn activate_window(&mut self, window: &W::Id) {
-        let column_idx = self
-            .columns
-            .iter()
-            .position(|col| col.contains(window))
-            .unwrap();
+    pub fn activate_window(&mut self, window: &W::Id) -> bool {
+        let column_idx = self.columns.iter().position(|col| col.contains(window));
+        let Some(column_idx) = column_idx else {
+            return false;
+        };
         let column = &mut self.columns[column_idx];
 
         column.activate_window(window);
         self.activate_column(column_idx);
+
+        true
     }
 
     pub fn start_close_animation_for_window(

src/layout/workspace.rs

@@ -840,8 +840,8 @@ impl<W: LayoutElement> Workspace<W> {
         self.scrolling.scroll_amount_to_activate(window)
     }
 
-    pub fn activate_window(&mut self, window: &W::Id) {
-        self.scrolling.activate_window(window);
+    pub fn activate_window(&mut self, window: &W::Id) -> bool {
+        self.scrolling.activate_window(window)
     }
 
     pub fn set_insert_hint(&mut self, insert_hint: InsertHint) {