Introduced gui.setTextItems() method

This utility function can be used to populate a Qt control which is
backed by some QAbstractItemModel with a list of strings. E.g. this can
be used to populate a QComboBox or any QAbstractItemView with some
items.

This is very useful since in many cases, the methods for adding elements
to such controls are neither slots, nor marked with Q_INVOKABLE and such
unreachable from the script code.

Change-Id: I2195f41e53765ef3a798477ed08d8f09ab5c4379
Reviewed-by: Katja Marttila <katja.marttila@qt.io>

4 files changed, 33 insertions, 0 deletions

diff --git a/src/libs/installer/packagemanagergui.cpp b/src/libs/installer/packagemanagergui.cpp
index 408ef0cbc..ec558a7ab 100644
--- a/src/libs/installer/packagemanagergui.cpp
+++ b/src/libs/installer/packagemanagergui.cpp
@@ -54,7 +54,9 @@
 #include <QtCore/QProcess>
 #include <QtCore/QTimer>
 
+#include <QAbstractItemView>
 #include <QCheckBox>
+#include <QComboBox>
 #include <QDesktopServices>
 #include <QFileDialog>
 #include <QGridLayout>
@@ -68,6 +70,7 @@
 #include <QProgressBar>
 #include <QPushButton>
 #include <QRadioButton>
+#include <QStringListModel>
 #include <QTextBrowser>
 #include <QTreeView>
 #include <QVBoxLayout>
@@ -436,6 +439,26 @@ bool PackageManagerGui::isSilent() const
 }
 
 /*!
+    Updates the model of \a object (which must be a QComboBox or
+    QAbstractItemView) such that it contains the given \a items.
+*/
+void PackageManagerGui::setTextItems(QObject *object, const QStringList &items)
+{
+    if (QComboBox *comboBox = qobject_cast<QComboBox*>(object)) {
+        comboBox->setModel(new QStringListModel(items));
+        return;
+    }
+
+    if (QAbstractItemView *view = qobject_cast<QAbstractItemView*>(object)) {
+        view->setModel(new QStringListModel(items));
+        return;
+    }
+
+    qDebug() << "Cannot set text items on object of type"
+             << object->metaObject()->className() << ".";
+}
+
+/*!
     Enables automatic page switching when \a request is \c true.
 */
 void PackageManagerGui::setAutomatedPageSwitchEnabled(bool request)
diff --git a/src/libs/installer/packagemanagergui.h b/src/libs/installer/packagemanagergui.h
index 8faa75263..2940df052 100644
--- a/src/libs/installer/packagemanagergui.h
+++ b/src/libs/installer/packagemanagergui.h
@@ -96,6 +96,8 @@ public:
     void setSilent(bool silent);
     bool isSilent() const;
 
+    void setTextItems(QObject *object, const QStringList &items);
+
 Q_SIGNALS:
     void interrupted();
     void languageChanged();
diff --git a/src/libs/installer/scriptengine.cpp b/src/libs/installer/scriptengine.cpp
index adf841bde..79f813572 100644
--- a/src/libs/installer/scriptengine.cpp
+++ b/src/libs/installer/scriptengine.cpp
@@ -212,6 +212,12 @@ void GuiProxy::setSilent(bool silent)
       m_gui->setSilent(silent);
 }
 
+void GuiProxy::setTextItems(QObject *object, const QStringList &items)
+{
+    if (m_gui)
+        m_gui->setTextItems(object, items);
+}
+
 void GuiProxy::cancelButtonClicked()
 {
     if (m_gui)
diff --git a/src/libs/installer/scriptengine_p.h b/src/libs/installer/scriptengine_p.h
index b15478680..90ff56475 100644
--- a/src/libs/installer/scriptengine_p.h
+++ b/src/libs/installer/scriptengine_p.h
@@ -160,6 +160,8 @@ public:
 
     Q_INVOKABLE void setSilent(bool silent);
 
+    Q_INVOKABLE void setTextItems(QObject *object, const QStringList &items);
+
 signals:
     void interrupted();
     void languageChanged();