Core: add combo info to info bar entry

This allows user to show a combo box for a
stringlist. Every time the user changes the selection
a callback is called.

Change-Id: I27e16843465e6006cccdc3502e76be852b584dfa
Reviewed-by: Eike Ziller <eike.ziller@qt.io>

src/plugins/coreplugin/infobar.cpp

@@ -36,6 +36,7 @@
 #include <QVBoxLayout>
 #include <QLabel>
 #include <QToolButton>
+#include <QComboBox>
 
 static const char C_SUPPRESSED_WARNINGS[] = "SuppressedWarnings";
 
@@ -73,6 +74,12 @@ void InfoBarEntry::setCancelButtonInfo(const QString &_cancelButtonText, CallBac
     m_cancelButtonCallBack = callBack;
 }
 
+void InfoBarEntry::setComboInfo(const QStringList &list, InfoBarEntry::ComboCallBack callBack)
+{
+    m_comboCallBack = callBack;
+    m_comboInfo = list;
+}
+
 void InfoBarEntry::removeCancelButton()
 {
     m_useCancelButton = false;
@@ -242,7 +249,7 @@ void InfoBarDisplay::update()
 
         QLabel *infoWidgetLabel = new QLabel(info.m_infoText);
         infoWidgetLabel->setWordWrap(true);
-        hbox->addWidget(infoWidgetLabel);
+        hbox->addWidget(infoWidgetLabel, 1);
 
         if (info.m_detailsWidgetCreator) {
             if (m_isShowingDetailsWidget) {
@@ -270,6 +277,16 @@ void InfoBarDisplay::update()
             m_isShowingDetailsWidget = false;
         }
 
+        if (!info.m_comboInfo.isEmpty()) {
+            auto cb = new QComboBox();
+            cb->addItems(info.m_comboInfo);
+            connect(cb, &QComboBox::currentTextChanged, [info](const QString &text) {
+                info.m_comboCallBack(text);
+            });
+
+            hbox->addWidget(cb);
+        }
+
         if (!info.m_buttonText.isEmpty()) {
             auto infoWidgetButton = new QToolButton;
             infoWidgetButton->setText(info.m_buttonText);

src/plugins/coreplugin/infobar.h

@@ -61,6 +61,8 @@ public:
     void setCustomButtonInfo(const QString &_buttonText, CallBack callBack);
     void setCancelButtonInfo(CallBack callBack);
     void setCancelButtonInfo(const QString &_cancelButtonText, CallBack callBack);
+    using ComboCallBack = std::function<void(const QString &)>;
+    void setComboInfo(const QStringList &list, ComboCallBack callBack);
     void removeCancelButton();
 
     using DetailsWidgetCreator = std::function<QWidget*()>;
@@ -76,6 +78,8 @@ private:
     GlobalSuppressionMode m_globalSuppression;
     DetailsWidgetCreator m_detailsWidgetCreator;
     bool m_useCancelButton = true;
+    ComboCallBack m_comboCallBack;
+    QStringList m_comboInfo;
     friend class InfoBar;
     friend class InfoBarDisplay;
 };