QmlDesigner: Track time spend in design mode

Change-Id: Iabe982dcf2fc8c4ef3d10cf3d3df5b9e9b826548
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Thomas Hartmann <thomas.hartmann@qt.io>

src/plugins/qmldesigner/qmldesignerconstants.h

@@ -123,6 +123,7 @@ const char EVENT_PROPERTYEDITOR_TIME[] = "propertyEditor";
 const char EVENT_ASSETSLIBRARY_TIME[] = "assetsLibrary";
 const char EVENT_ITEMLIBRARY_TIME[] = "itemLibrary";
 const char EVENT_TRANSLATIONVIEW_TIME[] = "translationView";
+const char EVENT_DESIGNMODE_TIME[] = "designMode";
 
 const char PROPERTY_EDITOR_CLASSNAME_PROPERTY[] = "__classNamePrivateInternal";
 

src/plugins/qmldesigner/qmldesignerplugin.cpp

@@ -482,6 +482,8 @@ void QmlDesignerPlugin::showDesigner()
     }
 
     d->shortCutManager.updateUndoActions(currentDesignDocument());
+
+    m_usageTimer.restart();
 }
 
 void QmlDesignerPlugin::hideDesigner()
@@ -494,6 +496,7 @@ void QmlDesignerPlugin::hideDesigner()
     d->shortCutManager.disconnectUndoActions(currentDesignDocument());
     d->documentManager.setCurrentDesignDocument(nullptr);
     d->shortCutManager.updateUndoActions(nullptr);
+    emitUsageStatisticsTime(QmlDesigner::Constants::EVENT_DESIGNMODE_TIME, m_usageTimer.elapsed());
 }
 
 void QmlDesignerPlugin::changeEditor()

src/plugins/qmldesigner/qmldesignerplugin.h

@@ -35,6 +35,8 @@
 #include "shortcutmanager.h"
 #include <designeractionmanager.h>
 
+#include <QElapsedTimer>
+
 QT_FORWARD_DECLARE_CLASS(QQmlEngine)
 
 namespace Core {
@@ -116,6 +118,7 @@ private: // functions
 private: // variables
     QmlDesignerPluginPrivate *d = nullptr;
     static QmlDesignerPlugin *m_instance;
+    QElapsedTimer m_usageTimer;
 };
 
 } // namespace QmlDesigner