rework message hierarchy

Rework message hierarchy with the final objective
of splitting libqtappfw into several libraries.
This commit carries the following changes:
- Simplify message hierarchy, keeping abstract
Message class, adding specialization for call and
event messages, keeping ResponseMessage, and
removing all module specific specializations.
- Add MessageFactory class to create message
objects.
- Change messages life cycle: using smart pointers
and removing QObject from message hierarchy (a
Message is not a QObject anymore and thus
'deleteLater()' is not available).
- Adapt all modules to use new message hierarchy.
- Keep ResponseMessage original constructor to
avoid breaking TaskManager.
- Message constructors have been kept public, but
will go private on a follow-up patch (once
TaskManager class has been modified to use new
MessageFactory).

Bug-AGL: SPEC-3112
Signed-off-by: Raquel Medina <raquel.medina@konsulko.com>
Change-Id: I3a7a6325209ddeca2293f1ac745371861a947bfb

1 files changed, 2 insertions, 3 deletions

diff --git a/mediaplayer/mediaplayer.h b/mediaplayer/mediaplayer.h
index f3930f4..374ab06 100644
--- a/mediaplayer/mediaplayer.h
+++ b/mediaplayer/mediaplayer.h
@@ -17,6 +17,7 @@
 #ifndef MEDIAPLAYER_H
 #define MEDIAPLAYER_H
 
+#include <memory>
 #include <QObject>
 #include <QtQml/QQmlContext>
 #include <QtQml/QQmlListProperty>
@@ -24,8 +25,6 @@
 class MessageEngine;
 class Message;
 
-enum class MessageType;
-
 class Playlist : public QObject
 {
     Q_OBJECT
@@ -106,7 +105,7 @@ class Mediaplayer : public QObject
 
         void onConnected();
         void onDisconnected();
-        void onMessageReceived(MessageType, Message*);
+        void onMessageReceived(std::shared_ptr<Message>);
 
         const QStringList events {
             "playlist",