Fix handling of QCompleter in SmInputDialog

setCompleter() assumed that QLineEdit always had a valid completer and
schedule it for later deletion. This caused random crashes when there
was no deleter. So make sure that mLE always a valid deleter and set the
model instead of a new completer.

3 files changed, 8 insertions, 8 deletions

diff --git a/moviepropertiesdialog.cpp b/moviepropertiesdialog.cpp
index 4042d36..0361681 100644
--- a/moviepropertiesdialog.cpp
+++ b/moviepropertiesdialog.cpp
@@ -182,15 +182,13 @@ void MoviePropertiesDialog::init(int seriesPartsId){
     while(allActorsQ.next()){
         actorNames << allActorsQ.value(0).toString();
     }
-    QCompleter *actorCompleter = new QCompleter(actorNames, mActorDlg);
-    mActorDlg->setCompleter(actorCompleter);
+    mActorDlg->setCompleterModel(actorNames);
     QStringList genreNames;
     QSqlQuery allGenresQ("SELECT tgenrename FROM genres", db);
     while(allGenresQ.next()){
         genreNames << allGenresQ.value(0).toString();
     }
-    QCompleter *genreCompleter = new QCompleter(genreNames, mGenreDlg);
-    mGenreDlg->setCompleter(genreCompleter);
+    mGenreDlg->setCompleterModel(genreNames);
 }
 
 void MoviePropertiesDialog::addItem(SmInputDialog *dlg, QStandardItemModel *model, QIcon icon){
diff --git a/sminputdialog.cpp b/sminputdialog.cpp
index f078141..ecd43c2 100644
--- a/sminputdialog.cpp
+++ b/sminputdialog.cpp
@@ -3,12 +3,15 @@
 #include <QCompleter>
 #include <QHBoxLayout>
 #include <QVBoxLayout>
+#include <QStringListModel>
 
 #include "sminputdialog.h"
 
 SmInputDialog::SmInputDialog(const QString &label, QWidget *parent) : QDialog(parent){
     QLabel *thisL = new QLabel(label);
     mLE = new QLineEdit;
+    mCompleter = new QCompleter(this);
+    mLE->setCompleter(mCompleter);
     QPushButton *cancelPB = new QPushButton(tr("Cancel"));
     connect(cancelPB, &QPushButton::clicked, this, &SmInputDialog::reject);
     QPushButton *acceptPB = new QPushButton(tr("OK"));
@@ -30,7 +33,6 @@ void SmInputDialog::setText(QString &text){
     mLE->setText(text);
 }
 
-void SmInputDialog::setCompleter(QCompleter *completer){
-    mLE->completer()->deleteLater();
-    mLE->setCompleter(completer);
+void SmInputDialog::setCompleterModel(const QStringList &model){
+    mCompleter->setModel(new QStringListModel(model));
 }
diff --git a/sminputdialog.h b/sminputdialog.h
index 4f2eb7e..43f3e53 100644
--- a/sminputdialog.h
+++ b/sminputdialog.h
@@ -12,7 +12,7 @@ class SmInputDialog : public QDialog {
         explicit SmInputDialog(const QString &label, QWidget *parent = nullptr);
         void setText(QString &text);
         const QString text() const { return mLE->text(); }
-        void setCompleter(QCompleter *completer);
+        void setCompleterModel(const QStringList &model);
 
     private:
         void setupDialog();