Change examples to follow best practices

Adding QObjects as context properties to QML engines is not the best
way to interoperate between QML and C++. This change exposes all state
machines as proper QML components and instantiates them from QML. Also,
it drops all the now unnecessary init() calls.

Change-Id: Id44b4038542dd9469e02831c1bb54f096af1b6ff
Reviewed-by: Erik Verbruggen <erik.verbruggen@theqtcompany.com>

2 files changed, 6 insertions, 5 deletions

diff --git a/examples/scxml/mediaplayer-qml-static/mediaplayer-qml-static.cpp b/examples/scxml/mediaplayer-qml-static/mediaplayer-qml-static.cpp
index 9aa1ea3..6dd263e 100644
--- a/examples/scxml/mediaplayer-qml-static/mediaplayer-qml-static.cpp
+++ b/examples/scxml/mediaplayer-qml-static/mediaplayer-qml-static.cpp
@@ -58,12 +58,9 @@ int main(int argc, char *argv[])
 {
     QGuiApplication app(argc, argv);
 
-    MediaPlayerStateMachine stateMachine;
-    stateMachine.init();
-    stateMachine.start();
+    qmlRegisterType<MediaPlayerStateMachine>("MediaPlayerStateMachine", 1, 0, "MediaPlayerStateMachine");
 
     QQmlApplicationEngine engine;
-    engine.rootContext()->setContextProperty(QStringLiteral("mediaPlayerStateMachine"), &stateMachine);
     engine.load(QUrl(QStringLiteral("qrc:///mediaplayer-qml-static.qml")));
     if (engine.rootObjects().isEmpty())
         return -1;
diff --git a/examples/scxml/mediaplayer-qml-static/mediaplayer-qml-static.qml b/examples/scxml/mediaplayer-qml-static/mediaplayer-qml-static.qml
index 252d69b..170b938 100644
--- a/examples/scxml/mediaplayer-qml-static/mediaplayer-qml-static.qml
+++ b/examples/scxml/mediaplayer-qml-static/mediaplayer-qml-static.qml
@@ -48,6 +48,10 @@
 **
 ****************************************************************************/
 
+import MediaPlayerStateMachine 1.0
+
 Mediaplayer {
-    stateMachine: mediaPlayerStateMachine
+    stateMachine: MediaPlayerStateMachine {
+        running: true
+    }
 }