Add the additional action to form

core/form.cpp

@@ -73,6 +73,19 @@ void FormField::setActivationAction( Action *action )
     d->m_activateAction = action;
 }
 
+Action* FormField::additionalAction( AdditionalActionType type ) const
+{
+    Q_D( const FormField );
+    return d->m_additionalActions.value(type);
+}
+
+void FormField::setAdditionalAction( AdditionalActionType type, Action *action )
+{
+    Q_D( FormField );
+    delete d->m_additionalActions.value(type);
+    d->m_additionalActions[type] = action;
+}
+
 
 class Okular::FormFieldButtonPrivate : public Okular::FormFieldPrivate
 {

core/form.h

@@ -93,6 +93,26 @@ class OKULARCORE_EXPORT FormField
 
         Action* activationAction() const;
 
+        /**
+         * Describes the type of form additional action.
+         *
+         * @since 1.1
+         */
+        enum AdditionalActionType
+        {
+            FieldModified,   ///< An action to be performed when the user modifies the field
+            FormatField,     ///< An action to be performed before the field is formatted to display its value
+            ValidateField,   ///< An action to be performed when the field value changes
+            CalculateField,  ///< An action to be performed when the field needs to be recalculated
+        };
+
+        /**
+         * Returns the additional action of the given @p type or @c nullptr if no action has been defined.
+         *
+         * @since 1.1
+        */
+        Action* additionalAction( AdditionalActionType type ) const;
+
     protected:
         /// @cond PRIVATE
         FormField( FormFieldPrivate &dd );
@@ -101,6 +121,7 @@ class OKULARCORE_EXPORT FormField
         /// @endcond
 
         void setActivationAction( Action *action );
+        void setAdditionalAction( AdditionalActionType type, Action *action );
 
     private:
         Q_DISABLE_COPY( FormField )

core/form_p.h

@@ -33,6 +33,7 @@ class FormFieldPrivate
         FormField::FieldType m_type;
         QString m_default;
         Action *m_activateAction;
+        QHash<int, Action*> m_additionalActions;
 
         Q_DECLARE_PUBLIC( FormField )
         FormField *q_ptr;