Address Book example: Correctly update "Edit entry" and "Remove entry" actions

They are not updated after switching tabs. Thus they can be enabled even
when no entry is selected: select an entry on the current tab and then
switch to an empty tab.

Emit AddressWidget::selectionChanged() signal after changing the current tab
to update these actions.

Change-Id: I00da15ed6c3d3839210ae3ffbe1436e234695522
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>

1 files changed, 6 insertions, 0 deletions

diff --git a/examples/widgets/itemviews/addressbook/addresswidget.cpp b/examples/widgets/itemviews/addressbook/addresswidget.cpp
index 9480d2ca8e..143f6266dd 100644
--- a/examples/widgets/itemviews/addressbook/addresswidget.cpp
+++ b/examples/widgets/itemviews/addressbook/addresswidget.cpp
@@ -192,6 +192,12 @@ void AddressWidget::setupTabs()
             &QItemSelectionModel::selectionChanged,
             this, &AddressWidget::selectionChanged);
 
+        connect(this, &QTabWidget::currentChanged, this, [this](int tabIndex) {
+            auto *tableView = qobject_cast<QTableView *>(widget(tabIndex));
+            if (tableView)
+                emit selectionChanged(tableView->selectionModel()->selection());
+        });
+
         addTab(tableView, str);
     }
 }