Todo example using modality in C++

Author: ogoffart

examples/todo/cpp/app.cpp

@@ -35,20 +35,31 @@ AppState create_ui()
         }
     });
 
-    demo->on_popup_confirmed(
-            [demo = slint::ComponentWeakHandle(demo)] { (*demo.lock())->window().hide(); });
-
-    demo->window().on_close_requested([todo_model, demo = slint::ComponentWeakHandle(demo)] {
-        int count = todo_model->row_count();
-        for (int i = 0; i < count; ++i) {
-            if (!todo_model->row_data(i)->checked) {
-                (*demo.lock())->invoke_show_confirm_popup();
-                return slint::CloseRequestResponse::KeepWindowShown;
-            }
+    auto confirm_dialog = todo_ui::ConfirmDialog::create();
+    confirm_dialog->window().set_modality(demo->window());
+    confirm_dialog->on_yes_clicked([demo = slint::ComponentWeakHandle(demo),
+                                    confirm_dialog = slint::ComponentWeakHandle(confirm_dialog)] {
+        if (auto d = demo.lock()) {
+            (*d)->window().hide();
         }
-        return slint::CloseRequestResponse::HideWindow;
+        (*confirm_dialog.lock())->window().hide();
+    });
+    confirm_dialog->on_no_clicked([confirm_dialog = slint::ComponentWeakHandle(confirm_dialog)] {
+        (*confirm_dialog.lock())->window().hide();
     });
 
+    demo->window().on_close_requested(
+            [todo_model, demo = slint::ComponentWeakHandle(demo), confirm_dialog] {
+                int count = todo_model->row_count();
+                for (int i = 0; i < count; ++i) {
+                    if (!todo_model->row_data(i)->checked) {
+                        confirm_dialog->window().show();
+                        return slint::CloseRequestResponse::KeepWindowShown;
+                    }
+                }
+                return slint::CloseRequestResponse::HideWindow;
+            });
+
     demo->set_show_header(true);
 
     demo->on_apply_sorting_and_filtering([todo_model, demo = slint::ComponentWeakHandle(demo)] {