diff options
| -rw-r--r-- | src/widgets/util/qcompleter.cpp | 2 | ||||
| -rw-r--r-- | tests/auto/widgets/widgets/qcombobox/tst_qcombobox.cpp | 10 |
2 files changed, 12 insertions, 0 deletions
diff --git a/src/widgets/util/qcompleter.cpp b/src/widgets/util/qcompleter.cpp index 85abcca0d7..727d1231aa 100644 --- a/src/widgets/util/qcompleter.cpp +++ b/src/widgets/util/qcompleter.cpp @@ -1120,6 +1120,8 @@ void QCompleter::setModel(QAbstractItemModel *model) { Q_D(QCompleter); QAbstractItemModel *oldModel = d->proxy->sourceModel(); + if (oldModel == model) + return; #if QT_CONFIG(filesystemmodel) if (qobject_cast<const QFileSystemModel *>(oldModel)) setCompletionRole(Qt::EditRole); // QTBUG-54642, clear FileNameRole set by QFileSystemModel diff --git a/tests/auto/widgets/widgets/qcombobox/tst_qcombobox.cpp b/tests/auto/widgets/widgets/qcombobox/tst_qcombobox.cpp index 32437050f5..7af60ed757 100644 --- a/tests/auto/widgets/widgets/qcombobox/tst_qcombobox.cpp +++ b/tests/auto/widgets/widgets/qcombobox/tst_qcombobox.cpp @@ -1682,6 +1682,16 @@ void tst_QComboBox::setModel() QCOMPARE(box.rootModelIndex(), rootModelIndex); box.setModel(box.model()); QCOMPARE(box.rootModelIndex(), rootModelIndex); + + // check that setting the same model as the completer's doesn't crash + QCompleter *completer = new QCompleter(&box); + box.setEditable(true); + box.setCompleter(completer); + auto *listModel = new QStringListModel({ "one", "two" }, completer); + completer->setModel(listModel); + QCOMPARE(listModel->rowCount(), 2); // make sure it wasn't deleted + box.setModel(listModel); + QCOMPARE(listModel->rowCount(), 2); // make sure it wasn't deleted } void tst_QComboBox::setCustomModelAndView() |