Make the "prompt to submit" setting a per-plugin one.

Provide a checkable message box to be able to turn
prompting off when asked.

src/libs/utils/checkablemessagebox.h

@@ -0,0 +1,77 @@
+#ifndef CHECKABLEMESSAGEBOX_H
+#define CHECKABLEMESSAGEBOX_H
+
+#include "utils_global.h"
+
+#include <QtGui/QDialogButtonBox>
+#include <QtGui/QMessageBox>
+#include <QtGui/QDialog>
+
+namespace Core {
+namespace Utils {
+
+struct CheckableMessageBoxPrivate;
+
+/* A messagebox suitable for questions with a
+ * "Do not ask me again" checkbox. Emulates the QMessageBox API with
+ * static conveniences. */
+
+class QTCREATOR_UTILS_EXPORT CheckableMessageBox : public QDialog
+{
+    Q_OBJECT
+    Q_PROPERTY(QString text READ text WRITE setText)
+    Q_PROPERTY(QPixmap iconPixmap READ iconPixmap WRITE setIconPixmap)
+    Q_PROPERTY(bool isChecked READ isChecked WRITE setChecked)
+    Q_PROPERTY(QString checkBoxText READ checkBoxText WRITE setCheckBoxText)
+    Q_PROPERTY(QDialogButtonBox::StandardButtons buttons READ standardButtons WRITE setStandardButtons)
+    Q_PROPERTY(QDialogButtonBox::StandardButton defaultButton READ defaultButton WRITE setDefaultButton)
+public:
+    explicit CheckableMessageBox(QWidget *parent);
+    virtual ~CheckableMessageBox();
+
+    static QDialogButtonBox::StandardButton
+        question(QWidget *parent,
+                 const QString &title,
+                 const QString &question,
+                 const QString &checkBoxText,
+                 bool *checkBoxSetting,
+                 QDialogButtonBox::StandardButtons buttons = QDialogButtonBox::Yes|QDialogButtonBox::No,
+                 QDialogButtonBox::StandardButton defaultButton = QDialogButtonBox::No);
+
+    QString text() const;
+    void setText(const QString &);
+
+    bool isChecked() const;
+    void setChecked(bool s);
+
+    QString checkBoxText() const;
+    void setCheckBoxText(const QString &);
+
+   QDialogButtonBox::StandardButtons standardButtons() const;
+   void setStandardButtons(QDialogButtonBox::StandardButtons s);
+
+   QDialogButtonBox::StandardButton defaultButton() const;
+   void setDefaultButton(QDialogButtonBox::StandardButton s);
+
+    // see static QMessageBox::standardPixmap()
+    QPixmap iconPixmap() const;
+    void setIconPixmap (const QPixmap &p);
+
+   // Query the result
+   QAbstractButton *clickedButton() const;
+   QDialogButtonBox::StandardButton clickedStandardButton() const;
+
+   // Conversion convenience
+   static QMessageBox::StandardButton dialogButtonBoxToMessageBoxButton(QDialogButtonBox::StandardButton);
+
+private slots:
+   void slotClicked(QAbstractButton *b);
+
+private:
+   CheckableMessageBoxPrivate *m_d;
+};
+
+} // namespace Utils
+} // namespace Core
+
+#endif // CHECKABLEMESSAGEBOX_H