QmlDesigner: Split messaging and process for puppets

This will make it easier to implement custom puppets. The new connection
manager will restucture the code and it add a mechanism to capture data
too.

Task-number: QDS-2529
Change-Id: I5d15c3303ef1c9a3e25ba197d350e0d561ce813a
Reviewed-by: Thomas Hartmann <thomas.hartmann@qt.io>

share/qtcreator/qml/qmlpuppet/commands/captureddatacommand.h

@@ -0,0 +1,107 @@
+/****************************************************************************
+**
+** Copyright (C) 2020 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#pragma once
+
+#include <QMetaType>
+
+#include "imagecontainer.h"
+
+namespace QmlDesigner {
+
+class CapturedDataCommand
+{
+public:
+    struct NodeData
+    {
+        friend QDataStream &operator<<(QDataStream &out, const NodeData &data)
+        {
+            out << data.nodeId;
+            out << data.contentRect;
+            out << data.sceneTransform;
+            out << data.text;
+
+            return out;
+        }
+
+        friend QDataStream &operator>>(QDataStream &in, NodeData &data)
+        {
+            in >> data.nodeId;
+            in >> data.contentRect;
+            in >> data.sceneTransform;
+            in >> data.text;
+
+            return in;
+        }
+
+        qint32 nodeId = -1;
+        QRectF contentRect;
+        QTransform sceneTransform;
+        QString text;
+    };
+
+    struct StateData
+    {
+        friend QDataStream &operator<<(QDataStream &out, const StateData &data)
+        {
+            out << data.image;
+            out << data.nodeData;
+
+            return out;
+        }
+
+        friend QDataStream &operator>>(QDataStream &in, StateData &data)
+        {
+            in >> data.image;
+            in >> data.nodeData;
+
+            return in;
+        }
+
+        ImageContainer image;
+        QVector<NodeData> nodeData;
+    };
+
+    friend QDataStream &operator<<(QDataStream &out, const CapturedDataCommand &command)
+    {
+        out << command.stateData;
+
+        return out;
+    }
+
+    friend QDataStream &operator>>(QDataStream &in, CapturedDataCommand &command)
+    {
+        in >> command.stateData;
+
+        return in;
+    }
+
+public:
+    QVector<StateData> stateData;
+};
+
+} // namespace QmlDesigner
+
+Q_DECLARE_METATYPE(QmlDesigner::CapturedDataCommand)

share/qtcreator/qml/qmlpuppet/commands/commands.pri

@@ -1,69 +1,70 @@
-INCLUDEPATH += $$PWD/
+INCLUDEPATH += $$PWD
 
-HEADERS += $$PWD/synchronizecommand.h
-HEADERS += $$PWD/changepreviewimagesizecommand.h
-HEADERS += $$PWD/changelanguagecommand.h
-HEADERS += $$PWD//debugoutputcommand.h
-HEADERS += $$PWD/endpuppetcommand.h
-HEADERS += $$PWD/tokencommand.h
-HEADERS += $$PWD/componentcompletedcommand.h
-HEADERS += $$PWD/completecomponentcommand.h
-HEADERS += $$PWD/statepreviewimagechangedcommand.h
-HEADERS += $$PWD/childrenchangedcommand.h
-HEADERS += $$PWD/changebindingscommand.h
-HEADERS += $$PWD/changefileurlcommand.h
-HEADERS += $$PWD/changeidscommand.h
-HEADERS += $$PWD/changenodesourcecommand.h
-HEADERS += $$PWD/changestatecommand.h
-HEADERS += $$PWD/changevaluescommand.h
-HEADERS += $$PWD/createscenecommand.h
-HEADERS += $$PWD/clearscenecommand.h
-HEADERS += $$PWD/createinstancescommand.h
-HEADERS += $$PWD/informationchangedcommand.h
-HEADERS += $$PWD/pixmapchangedcommand.h
-HEADERS += $$PWD/removeinstancescommand.h
-HEADERS += $$PWD/removepropertiescommand.h
-HEADERS += $$PWD/reparentinstancescommand.h
-HEADERS += $$PWD/valueschangedcommand.h
-HEADERS += $$PWD/changeauxiliarycommand.h
-HEADERS += $$PWD/removesharedmemorycommand.h
-HEADERS += $$PWD/puppetalivecommand.h
-HEADERS += $$PWD/changeselectioncommand.h
-HEADERS += $$PWD/update3dviewstatecommand.h
-HEADERS += $$PWD/puppettocreatorcommand.h
-HEADERS += $$PWD/inputeventcommand.h
-HEADERS += $$PWD/view3dactioncommand.h
+HEADERS += $$PWD/synchronizecommand.h \ \
+    $$PWD/captureddatacommand.h \
+    $$PWD/changepreviewimagesizecommand.h \
+    $$PWD/changelanguagecommand.h \
+    $$PWD//debugoutputcommand.h \
+    $$PWD/endpuppetcommand.h \
+    $$PWD/tokencommand.h \
+    $$PWD/componentcompletedcommand.h \
+    $$PWD/completecomponentcommand.h \
+    $$PWD/statepreviewimagechangedcommand.h \
+    $$PWD/childrenchangedcommand.h \
+    $$PWD/changebindingscommand.h \
+    $$PWD/changefileurlcommand.h \
+    $$PWD/changeidscommand.h \
+    $$PWD/changenodesourcecommand.h \
+    $$PWD/changestatecommand.h \
+    $$PWD/changevaluescommand.h \
+    $$PWD/createscenecommand.h \
+    $$PWD/clearscenecommand.h \
+    $$PWD/createinstancescommand.h \
+    $$PWD/informationchangedcommand.h \
+    $$PWD/pixmapchangedcommand.h \
+    $$PWD/removeinstancescommand.h \
+    $$PWD/removepropertiescommand.h \
+    $$PWD/reparentinstancescommand.h \
+    $$PWD/valueschangedcommand.h \
+    $$PWD/changeauxiliarycommand.h \
+    $$PWD/removesharedmemorycommand.h \
+    $$PWD/puppetalivecommand.h \
+    $$PWD/changeselectioncommand.h \
+    $$PWD/update3dviewstatecommand.h \
+    $$PWD/puppettocreatorcommand.h \
+    $$PWD/inputeventcommand.h \
+    $$PWD/view3dactioncommand.h
 
-SOURCES += $$PWD/synchronizecommand.cpp
-SOURCES += $$PWD/changepreviewimagesizecommand.cpp
-SOURCES += $$PWD/changelanguagecommand.cpp
-SOURCES += $$PWD/debugoutputcommand.cpp
-SOURCES += $$PWD/endpuppetcommand.cpp
-SOURCES += $$PWD/tokencommand.cpp
-SOURCES += $$PWD/componentcompletedcommand.cpp
-SOURCES += $$PWD/completecomponentcommand.cpp
-SOURCES += $$PWD/statepreviewimagechangedcommand.cpp
-SOURCES += $$PWD/childrenchangedcommand.cpp
-SOURCES += $$PWD/changebindingscommand.cpp
-SOURCES += $$PWD/changefileurlcommand.cpp
-SOURCES += $$PWD/changeidscommand.cpp
-SOURCES += $$PWD/changenodesourcecommand.cpp
-SOURCES += $$PWD/changestatecommand.cpp
-SOURCES += $$PWD/changevaluescommand.cpp
-SOURCES += $$PWD/informationchangedcommand.cpp
-SOURCES += $$PWD/removeinstancescommand.cpp
-SOURCES += $$PWD/removepropertiescommand.cpp
-SOURCES += $$PWD/reparentinstancescommand.cpp
-SOURCES += $$PWD/valueschangedcommand.cpp
-SOURCES += $$PWD/clearscenecommand.cpp
-SOURCES += $$PWD/createinstancescommand.cpp
-SOURCES += $$PWD/createscenecommand.cpp
-SOURCES += $$PWD/pixmapchangedcommand.cpp
-SOURCES += $$PWD/changeauxiliarycommand.cpp
-SOURCES += $$PWD/removesharedmemorycommand.cpp
-SOURCES += $$PWD/puppetalivecommand.cpp
-SOURCES += $$PWD/changeselectioncommand.cpp
-SOURCES += $$PWD/update3dviewstatecommand.cpp
-SOURCES += $$PWD/puppettocreatorcommand.cpp
-SOURCES += $$PWD/inputeventcommand.cpp
-SOURCES += $$PWD/view3dactioncommand.cpp
+SOURCES += $$PWD/synchronizecommand.cpp \
+    $$PWD/changepreviewimagesizecommand.cpp \
+    $$PWD/changelanguagecommand.cpp \
+    $$PWD/debugoutputcommand.cpp \
+    $$PWD/endpuppetcommand.cpp \
+    $$PWD/tokencommand.cpp \
+    $$PWD/componentcompletedcommand.cpp \
+    $$PWD/completecomponentcommand.cpp \
+    $$PWD/statepreviewimagechangedcommand.cpp \
+    $$PWD/childrenchangedcommand.cpp \
+    $$PWD/changebindingscommand.cpp \
+    $$PWD/changefileurlcommand.cpp \
+    $$PWD/changeidscommand.cpp \
+    $$PWD/changenodesourcecommand.cpp \
+    $$PWD/changestatecommand.cpp \
+    $$PWD/changevaluescommand.cpp \
+    $$PWD/informationchangedcommand.cpp \
+    $$PWD/removeinstancescommand.cpp \
+    $$PWD/removepropertiescommand.cpp \
+    $$PWD/reparentinstancescommand.cpp \
+    $$PWD/valueschangedcommand.cpp \
+    $$PWD/clearscenecommand.cpp \
+    $$PWD/createinstancescommand.cpp \
+    $$PWD/createscenecommand.cpp \
+    $$PWD/pixmapchangedcommand.cpp \
+    $$PWD/changeauxiliarycommand.cpp \
+    $$PWD/removesharedmemorycommand.cpp \
+    $$PWD/puppetalivecommand.cpp \
+    $$PWD/changeselectioncommand.cpp \
+    $$PWD/update3dviewstatecommand.cpp \
+    $$PWD/puppettocreatorcommand.cpp \
+    $$PWD/inputeventcommand.cpp \
+    $$PWD/view3dactioncommand.cpp

share/qtcreator/qml/qmlpuppet/instances/nodeinstanceclientproxy.cpp

@@ -35,6 +35,7 @@
 
 #include "nodeinstanceserverinterface.h"
 
+#include "captureddatacommand.h"
 #include "changeauxiliarycommand.h"
 #include "changebindingscommand.h"
 #include "changefileurlcommand.h"
@@ -84,12 +85,11 @@ constexpr void (QLocalSocket::*LocalSocketErrorFunction)(QLocalSocket::LocalSock
 #endif
 
 NodeInstanceClientProxy::NodeInstanceClientProxy(QObject *parent)
-    : QObject(parent),
-      m_inputIoDevice(nullptr),
-      m_outputIoDevice(nullptr),
-      m_nodeInstanceServer(nullptr),
-      m_writeCommandCounter(0),
-      m_synchronizeId(-1)
+    : QObject(parent)
+    , m_inputIoDevice(nullptr)
+    , m_outputIoDevice(nullptr)
+    , m_writeCommandCounter(0)
+    , m_synchronizeId(-1)
 {
     connect(&m_puppetAliveTimer, &QTimer::timeout, this, &NodeInstanceClientProxy::sendPuppetAliveCommand);
     m_puppetAliveTimer.setInterval(2000);
@@ -174,7 +174,8 @@ bool compareCommands(const QVariant &command, const QVariant &controlCommand)
         else if (command.userType() == debugOutputCommandType)
             return command.value<DebugOutputCommand>() == controlCommand.value<DebugOutputCommand>();
         else if (command.userType() == changeSelectionCommandType)
-            return command.value<ChangeSelectionCommand>() == controlCommand.value<ChangeSelectionCommand>();
+            return command.value<ChangeSelectionCommand>()
+                   == controlCommand.value<ChangeSelectionCommand>();
     }
 
     return false;
@@ -267,6 +268,11 @@ void NodeInstanceClientProxy::handlePuppetToCreatorCommand(const PuppetToCreator
     writeCommand(QVariant::fromValue(command));
 }
 
+void NodeInstanceClientProxy::capturedData(const CapturedDataCommand &command)
+{
+    writeCommand(QVariant::fromValue(command));
+}
+
 void NodeInstanceClientProxy::flush()
 {
 }
@@ -365,12 +371,13 @@ void NodeInstanceClientProxy::sendPuppetAliveCommand()
 
 NodeInstanceServerInterface *NodeInstanceClientProxy::nodeInstanceServer() const
 {
-    return m_nodeInstanceServer;
+    return m_nodeInstanceServer.get();
 }
 
-void NodeInstanceClientProxy::setNodeInstanceServer(NodeInstanceServerInterface *nodeInstanceServer)
+void NodeInstanceClientProxy::setNodeInstanceServer(
+    std::unique_ptr<NodeInstanceServerInterface> nodeInstanceServer)
 {
-    m_nodeInstanceServer = nodeInstanceServer;
+    m_nodeInstanceServer = std::move(nodeInstanceServer);
 }
 
 void NodeInstanceClientProxy::createInstances(const CreateInstancesCommand &command)

share/qtcreator/qml/qmlpuppet/instances/nodeinstanceclientproxy.h

@@ -69,7 +69,7 @@ class NodeInstanceClientProxy : public QObject, public NodeInstanceClientInterfa
     Q_OBJECT
 
 public:
-    NodeInstanceClientProxy(QObject *parent = nullptr);
+    NodeInstanceClientProxy(QObject *parent);
 
     void informationChanged(const InformationChangedCommand &command) override;
     void valuesChanged(const ValuesChangedCommand &command) override;
@@ -83,6 +83,7 @@ public:
     void puppetAlive(const PuppetAliveCommand &command);
     void selectionChanged(const ChangeSelectionCommand &command) override;
     void handlePuppetToCreatorCommand(const PuppetToCreatorCommand &command) override;
+    void capturedData(const CapturedDataCommand &capturedData) override;
 
     void flush() override;
     void synchronizeWithClientProcess() override;
@@ -94,7 +95,7 @@ protected:
     void writeCommand(const QVariant &command);
     void dispatchCommand(const QVariant &command);
     NodeInstanceServerInterface *nodeInstanceServer() const;
-    void setNodeInstanceServer(NodeInstanceServerInterface *nodeInstanceServer);
+    void setNodeInstanceServer(std::unique_ptr<NodeInstanceServerInterface> nodeInstanceServer);
 
     void createInstances(const CreateInstancesCommand &command);
     void changeFileUrl(const ChangeFileUrlCommand &command);
@@ -130,7 +131,7 @@ private:
     QTimer m_puppetAliveTimer;
     QIODevice *m_inputIoDevice;
     QIODevice *m_outputIoDevice;
-    NodeInstanceServerInterface *m_nodeInstanceServer;
+    std::unique_ptr<NodeInstanceServerInterface> m_nodeInstanceServer;
     quint32 m_writeCommandCounter;
     int m_synchronizeId;
 };

share/qtcreator/qml/qmlpuppet/interfaces/nodeinstanceclientinterface.h

@@ -42,6 +42,7 @@ class DebugOutputCommand;
 class PuppetAliveCommand;
 class ChangeSelectionCommand;
 class PuppetToCreatorCommand;
+class CapturedDataCommand;
 
 class NodeInstanceClientInterface
 {
@@ -57,6 +58,7 @@ public:
     virtual void debugOutput(const DebugOutputCommand &command) = 0;
     virtual void selectionChanged(const ChangeSelectionCommand &command) = 0;
     virtual void handlePuppetToCreatorCommand(const PuppetToCreatorCommand &command) = 0;
+    virtual void capturedData(const CapturedDataCommand &command) = 0;
 
     virtual void flush() {}
     virtual void synchronizeWithClientProcess() {}

share/qtcreator/qml/qmlpuppet/interfaces/nodeinstanceserverinterface.cpp

@@ -27,16 +27,17 @@
 #include <qmetatype.h>
 
 #include "addimportcontainer.h"
+#include "captureddatacommand.h"
 #include "changeauxiliarycommand.h"
 #include "changebindingscommand.h"
 #include "changefileurlcommand.h"
 #include "changeidscommand.h"
 #include "changelanguagecommand.h"
 #include "changenodesourcecommand.h"
+#include "changepreviewimagesizecommand.h"
 #include "changeselectioncommand.h"
 #include "changestatecommand.h"
 #include "changevaluescommand.h"
-#include "changepreviewimagesizecommand.h"
 #include "childrenchangedcommand.h"
 #include "clearscenecommand.h"
 #include "completecomponentcommand.h"
@@ -219,6 +220,9 @@ void NodeInstanceServerInterface::registerCommands()
 
     qRegisterMetaType<ChangePreviewImageSizeCommand>("ChangePreviewImageSizeCommand");
     qRegisterMetaTypeStreamOperators<ChangePreviewImageSizeCommand>("ChangePreviewImageSizeCommand");
+
+    qRegisterMetaType<CapturedDataCommand>("CapturedDataCommand");
+    qRegisterMetaTypeStreamOperators<CapturedDataCommand>("CapturedDataCommand");
 }
 
 }

share/qtcreator/qml/qmlpuppet/interfaces/nodeinstanceserverinterface.h

@@ -60,11 +60,6 @@ class NodeInstanceServerInterface : public QObject
 {
     Q_OBJECT
 public:
-    enum RunModus {
-        NormalModus,
-        TestModus // No preview images and synchronized
-    };
-
     explicit NodeInstanceServerInterface(QObject *parent = nullptr);
 
     virtual void createInstances(const CreateInstancesCommand &command) = 0;

share/qtcreator/qml/qmlpuppet/qml2puppet/instances/instances.pri

@@ -5,52 +5,54 @@ versionAtLeast(QT_VERSION, 5.15.0):qtHaveModule(quick3d) {
     DEFINES *= QUICK3D_MODULE
 }
 
-HEADERS += $$PWD/qt5nodeinstanceserver.h
-HEADERS += $$PWD/qt5testnodeinstanceserver.h
-HEADERS += $$PWD/qt5informationnodeinstanceserver.h
-HEADERS += $$PWD/qt5rendernodeinstanceserver.h
-HEADERS += $$PWD/qt5previewnodeinstanceserver.h
-HEADERS += $$PWD/qt5nodeinstanceclientproxy.h
-HEADERS += $$PWD/quickitemnodeinstance.h
-HEADERS += $$PWD/behaviornodeinstance.h
-HEADERS += $$PWD/dummycontextobject.h
-HEADERS += $$PWD/childrenchangeeventfilter.h
-HEADERS += $$PWD/componentnodeinstance.h
-HEADERS += $$PWD/dummynodeinstance.h
-HEADERS += $$PWD/nodeinstanceserver.h
-HEADERS += $$PWD/nodeinstancesignalspy.h
-HEADERS += $$PWD/objectnodeinstance.h
-HEADERS += $$PWD/qmlpropertychangesnodeinstance.h
-HEADERS += $$PWD/qmlstatenodeinstance.h
-HEADERS += $$PWD/qmltransitionnodeinstance.h
-HEADERS += $$PWD/servernodeinstance.h
-HEADERS += $$PWD/anchorchangesnodeinstance.h
-HEADERS += $$PWD/positionernodeinstance.h
-HEADERS += $$PWD/layoutnodeinstance.h
-HEADERS += $$PWD/qt3dpresentationnodeinstance.h
-HEADERS += $$PWD/quick3dnodeinstance.h
+HEADERS += $$PWD/qt5nodeinstanceserver.h \
+    $$PWD/qt5capturenodeinstanceserver.h \
+    $$PWD/qt5testnodeinstanceserver.h \
+    $$PWD/qt5informationnodeinstanceserver.h \
+    $$PWD/qt5rendernodeinstanceserver.h \
+    $$PWD/qt5previewnodeinstanceserver.h \
+    $$PWD/qt5nodeinstanceclientproxy.h \
+    $$PWD/quickitemnodeinstance.h \
+    $$PWD/behaviornodeinstance.h \
+    $$PWD/dummycontextobject.h \
+    $$PWD/childrenchangeeventfilter.h \
+    $$PWD/componentnodeinstance.h \
+    $$PWD/dummynodeinstance.h \
+    $$PWD/nodeinstanceserver.h \
+    $$PWD/nodeinstancesignalspy.h \
+    $$PWD/objectnodeinstance.h \
+    $$PWD/qmlpropertychangesnodeinstance.h \
+    $$PWD/qmlstatenodeinstance.h \
+    $$PWD/qmltransitionnodeinstance.h \
+    $$PWD/servernodeinstance.h \
+    $$PWD/anchorchangesnodeinstance.h \
+    $$PWD/positionernodeinstance.h \
+    $$PWD/layoutnodeinstance.h \
+    $$PWD/qt3dpresentationnodeinstance.h \
+    $$PWD/quick3dnodeinstance.h
 
-SOURCES += $$PWD/qt5nodeinstanceserver.cpp
-SOURCES += $$PWD/qt5testnodeinstanceserver.cpp
-SOURCES += $$PWD/qt5informationnodeinstanceserver.cpp
-SOURCES += $$PWD/qt5rendernodeinstanceserver.cpp
-SOURCES += $$PWD/qt5previewnodeinstanceserver.cpp
-SOURCES += $$PWD/qt5nodeinstanceclientproxy.cpp
-SOURCES += $$PWD/quickitemnodeinstance.cpp
-SOURCES += $$PWD/behaviornodeinstance.cpp
-SOURCES += $$PWD/dummycontextobject.cpp
-SOURCES += $$PWD/childrenchangeeventfilter.cpp
-SOURCES += $$PWD/componentnodeinstance.cpp
-SOURCES += $$PWD/dummynodeinstance.cpp
-SOURCES += $$PWD/nodeinstanceserver.cpp
-SOURCES += $$PWD/nodeinstancesignalspy.cpp
-SOURCES += $$PWD/objectnodeinstance.cpp
-SOURCES += $$PWD/qmlpropertychangesnodeinstance.cpp
-SOURCES += $$PWD/qmlstatenodeinstance.cpp
-SOURCES += $$PWD/qmltransitionnodeinstance.cpp
-SOURCES += $$PWD/servernodeinstance.cpp
-SOURCES += $$PWD/anchorchangesnodeinstance.cpp
-SOURCES += $$PWD/positionernodeinstance.cpp
-SOURCES += $$PWD/layoutnodeinstance.cpp
-SOURCES += $$PWD/qt3dpresentationnodeinstance.cpp
-SOURCES += $$PWD/quick3dnodeinstance.cpp
+SOURCES += $$PWD/qt5nodeinstanceserver.cpp \
+    $$PWD/qt5capturenodeinstanceserver.cpp \
+    $$PWD/qt5testnodeinstanceserver.cpp \
+    $$PWD/qt5informationnodeinstanceserver.cpp \
+    $$PWD/qt5rendernodeinstanceserver.cpp \
+    $$PWD/qt5previewnodeinstanceserver.cpp \
+    $$PWD/qt5nodeinstanceclientproxy.cpp \
+    $$PWD/quickitemnodeinstance.cpp \
+    $$PWD/behaviornodeinstance.cpp \
+    $$PWD/dummycontextobject.cpp \
+    $$PWD/childrenchangeeventfilter.cpp \
+    $$PWD/componentnodeinstance.cpp \
+    $$PWD/dummynodeinstance.cpp \
+    $$PWD/nodeinstanceserver.cpp \
+    $$PWD/nodeinstancesignalspy.cpp \
+    $$PWD/objectnodeinstance.cpp \
+    $$PWD/qmlpropertychangesnodeinstance.cpp \
+    $$PWD/qmlstatenodeinstance.cpp \
+    $$PWD/qmltransitionnodeinstance.cpp \
+    $$PWD/servernodeinstance.cpp \
+    $$PWD/anchorchangesnodeinstance.cpp \
+    $$PWD/positionernodeinstance.cpp \
+    $$PWD/layoutnodeinstance.cpp \
+    $$PWD/qt3dpresentationnodeinstance.cpp \
+    $$PWD/quick3dnodeinstance.cpp

share/qtcreator/qml/qmlpuppet/qml2puppet/instances/nodeinstanceserver.cpp

@@ -179,6 +179,8 @@ NodeInstanceServer::NodeInstanceServer(NodeInstanceClientInterface *nodeInstance
     m_childrenChangeEventFilter(new Internal::ChildrenChangeEventFilter(this)),
     m_nodeInstanceClient(nodeInstanceClient)
 {
+    m_idInstances.reserve(1000);
+
     qmlRegisterType<DummyContextObject>("QmlDesigner", 1, 0, "DummyContextObject");
 
     connect(m_childrenChangeEventFilter.data(), &Internal::ChildrenChangeEventFilter::childrenChanged, this, &NodeInstanceServer::emitParentChanged);
@@ -226,8 +228,8 @@ ServerNodeInstance NodeInstanceServer::instanceForId(qint32 id) const
     if (id < 0)
         return ServerNodeInstance();
 
-    Q_ASSERT(m_idInstanceHash.contains(id));
-    return m_idInstanceHash.value(id);
+    Q_ASSERT(m_idInstances.size() > id);
+    return m_idInstances[id];
 }
 
 bool NodeInstanceServer::hasInstanceForId(qint32 id) const
@@ -235,7 +237,7 @@ bool NodeInstanceServer::hasInstanceForId(qint32 id) const
     if (id < 0)
         return false;
 
-    return m_idInstanceHash.contains(id) && m_idInstanceHash.value(id).isValid();
+    return m_idInstances.size() > id && m_idInstances[id].isValid();
 }
 
 ServerNodeInstance NodeInstanceServer::instanceForObject(QObject *object) const
@@ -790,7 +792,7 @@ void NodeInstanceServer::removeAllInstanceRelationships()
         instance.makeInvalid();
     }
 
-    m_idInstanceHash.clear();
+    m_idInstances.clear();
     m_objectInstanceHash.clear();
 }
 
@@ -1243,10 +1245,11 @@ void NodeInstanceServer::notifyPropertyChange(qint32 instanceid, const PropertyN
 void NodeInstanceServer::insertInstanceRelationship(const ServerNodeInstance &instance)
 {
     Q_ASSERT(instance.isValid());
-    Q_ASSERT(!m_idInstanceHash.contains(instance.instanceId()));
     Q_ASSERT(!m_objectInstanceHash.contains(instance.internalObject()));
     m_objectInstanceHash.insert(instance.internalObject(), instance);
-    m_idInstanceHash.insert(instance.instanceId(), instance);
+    if (instance.instanceId() >= m_idInstances.size())
+        m_idInstances.resize(instance.instanceId() + 1);
+    m_idInstances[instance.instanceId()] = instance;
 }
 
 void NodeInstanceServer::removeInstanceRelationsip(qint32 instanceId)
@@ -1255,7 +1258,7 @@ void NodeInstanceServer::removeInstanceRelationsip(qint32 instanceId)
         ServerNodeInstance instance = instanceForId(instanceId);
         if (instance.isValid())
             instance.setId(QString());
-        m_idInstanceHash.remove(instanceId);
+        m_idInstances[instanceId] = ServerNodeInstance{};
         m_objectInstanceHash.remove(instance.internalObject());
         instance.makeInvalid();
     }
@@ -1383,8 +1386,8 @@ void NodeInstanceServer::removeInstanceRelationsipForDeletedObject(QObject *obje
         ServerNodeInstance instance = instanceForObject(object);
         m_objectInstanceHash.remove(object);
 
-        if (m_idInstanceHash.contains(instance.instanceId()))
-            m_idInstanceHash.remove(instance.instanceId());
+        if (instance.instanceId() >= 0 && m_idInstances.size() > instance.instanceId())
+            m_idInstances[instance.instanceId()] = ServerNodeInstance{};
     }
 }
 

share/qtcreator/qml/qmlpuppet/qml2puppet/instances/nodeinstanceserver.h

@@ -160,6 +160,8 @@ public:
     ServerNodeInstance instanceForObject(QObject *object) const;
     bool hasInstanceForObject(QObject *object) const;
 
+    const QVector<ServerNodeInstance> &nodeInstances() const { return m_idInstances; }
+
     virtual QQmlEngine *engine() const = 0;
     QQmlContext *context() const;
 
@@ -272,7 +274,7 @@ private:
     void setupOnlyWorkingImports(const QStringList &workingImportStatementList);
     ServerNodeInstance m_rootNodeInstance;
     ServerNodeInstance m_activeStateInstance;
-    QHash<qint32, ServerNodeInstance> m_idInstanceHash;
+    QVector<ServerNodeInstance> m_idInstances;
     QHash<QObject*, ServerNodeInstance> m_objectInstanceHash;
     QMultiHash<QString, ObjectPropertyPair> m_fileSystemWatcherHash;
     QList<QPair<QString, QPointer<QObject> > > m_dummyObjectList;

share/qtcreator/qml/qmlpuppet/qml2puppet/instances/qt5capturenodeinstanceserver.cpp

@@ -0,0 +1,105 @@
+/****************************************************************************
+**
+** Copyright (C) 2020 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#include "qt5capturenodeinstanceserver.h"
+#include "servernodeinstance.h"
+
+#include <captureddatacommand.h>
+#include <createscenecommand.h>
+#include <nodeinstanceclientinterface.h>
+
+#include <QImage>
+#include <QQuickView>
+
+namespace QmlDesigner {
+
+namespace {
+
+QImage renderPreviewImage(ServerNodeInstance rootNodeInstance)
+{
+    rootNodeInstance.updateDirtyNodeRecursive();
+
+    QSize previewImageSize = rootNodeInstance.boundingRect().size().toSize();
+
+    QImage previewImage = rootNodeInstance.renderPreviewImage(previewImageSize);
+
+    return previewImage;
+}
+
+CapturedDataCommand::StateData collectStateData(ServerNodeInstance rootNodeInstance,
+                                                const QVector<ServerNodeInstance> &nodeInstances,
+                                                qint32 stateInstanceId)
+{
+    CapturedDataCommand::StateData stateData;
+    stateData.image = ImageContainer(stateInstanceId,
+                                     QmlDesigner::renderPreviewImage(rootNodeInstance),
+                                     stateInstanceId);
+
+    for (const ServerNodeInstance &instance : nodeInstances) {
+        auto textProperty = instance.property("text");
+        if (!textProperty.isNull() && instance.holdsGraphical()) {
+            CapturedDataCommand::NodeData nodeData;
+            nodeData.nodeId = instance.instanceId();
+            nodeData.contentRect = instance.contentItemBoundingRect();
+            nodeData.sceneTransform = instance.sceneTransform();
+            nodeData.text = textProperty.toString();
+            stateData.nodeData.push_back(std::move(nodeData));
+        }
+    }
+
+    return stateData;
+}
+} // namespace
+
+void Qt5CaptureNodeInstanceServer::collectItemChangesAndSendChangeCommands()
+{
+    static bool inFunction = false;
+
+    if (!rootNodeInstance().holdsGraphical())
+        return;
+
+    if (!inFunction) {
+        inFunction = true;
+
+        DesignerSupport::polishItems(quickView());
+
+        QVector<CapturedDataCommand::StateData> stateDatas;
+        stateDatas.push_back(collectStateData(rootNodeInstance(), nodeInstances(), 0));
+
+        for (ServerNodeInstance stateInstance : rootNodeInstance().stateInstances()) {
+            stateInstance.activateState();
+            stateDatas.push_back(
+                collectStateData(rootNodeInstance(), nodeInstances(), stateInstance.instanceId()));
+            stateInstance.deactivateState();
+        }
+
+        nodeInstanceClient()->capturedData(CapturedDataCommand{stateDatas});
+
+        slowDownRenderTimer();
+        inFunction = false;
+    }
+}
+
+} // namespace QmlDesigner

share/qtcreator/qml/qmlpuppet/qml2puppet/instances/qt5capturenodeinstanceserver.h

@@ -0,0 +1,45 @@
+/****************************************************************************
+**
+** Copyright (C) 2020 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#pragma once
+
+#include <qt5previewnodeinstanceserver.h>
+
+namespace QmlDesigner {
+
+class Qt5CaptureNodeInstanceServer : public Qt5PreviewNodeInstanceServer
+{
+public:
+    explicit Qt5CaptureNodeInstanceServer(NodeInstanceClientInterface *nodeInstanceClient)
+        : Qt5PreviewNodeInstanceServer(nodeInstanceClient)
+    {}
+
+protected:
+    void collectItemChangesAndSendChangeCommands() override;
+
+private:
+};
+
+} // namespace QmlDesigner

share/qtcreator/qml/qmlpuppet/qml2puppet/instances/qt5nodeinstanceclientproxy.cpp

@@ -27,6 +27,7 @@
 
 #include <QCoreApplication>
 
+#include "qt5capturenodeinstanceserver.h"
 #include "qt5informationnodeinstanceserver.h"
 #include "qt5previewnodeinstanceserver.h"
 #include "qt5rendernodeinstanceserver.h"
@@ -37,7 +38,7 @@
 #if defined(Q_OS_UNIX)
 #include <unistd.h>
 #elif defined(Q_OS_WIN)
-#include <windows.h>
+#include <Windows.h>
 #endif
 
 namespace QmlDesigner {
@@ -57,18 +58,21 @@ Qt5NodeInstanceClientProxy::Qt5NodeInstanceClientProxy(QObject *parent) :
     DesignerSupport::activateDesignerWindowManager();
     if (QCoreApplication::arguments().at(1) == QLatin1String("--readcapturedstream")) {
         qputenv("DESIGNER_DONT_USE_SHARED_MEMORY", "1");
-        setNodeInstanceServer(new Qt5TestNodeInstanceServer(this));
+        setNodeInstanceServer(std::make_unique<Qt5TestNodeInstanceServer>(this));
         initializeCapturedStream(QCoreApplication::arguments().at(2));
         readDataStream();
         QCoreApplication::exit();
     } else if (QCoreApplication::arguments().at(2) == QLatin1String("previewmode")) {
-        setNodeInstanceServer(new Qt5PreviewNodeInstanceServer(this));
+        setNodeInstanceServer(std::make_unique<Qt5PreviewNodeInstanceServer>(this));
         initializeSocket();
     } else if (QCoreApplication::arguments().at(2) == QLatin1String("editormode")) {
-        setNodeInstanceServer(new Qt5InformationNodeInstanceServer(this));
+        setNodeInstanceServer(std::make_unique<Qt5InformationNodeInstanceServer>(this));
         initializeSocket();
     } else if (QCoreApplication::arguments().at(2) == QLatin1String("rendermode")) {
-        setNodeInstanceServer(new Qt5RenderNodeInstanceServer(this));
+        setNodeInstanceServer(std::make_unique<Qt5RenderNodeInstanceServer>(this));
+        initializeSocket();
+    } else if (QCoreApplication::arguments().at(2) == QLatin1String("capturemode")) {
+        setNodeInstanceServer(std::make_unique<Qt5CaptureNodeInstanceServer>(this));
         initializeSocket();
     }
 }

share/qtcreator/qml/qmlpuppet/qml2puppet/instances/qt5previewnodeinstanceserver.cpp

@@ -84,7 +84,8 @@ void Qt5PreviewNodeInstanceServer::collectItemChangesAndSendChangeCommands()
             instance.deactivateState();
         }
 
-        nodeInstanceClient()->statePreviewImagesChanged(StatePreviewImageChangedCommand(imageContainerVector));
+        nodeInstanceClient()->statePreviewImagesChanged(
+            StatePreviewImageChangedCommand(imageContainerVector));
 
         slowDownRenderTimer();
         inFunction = false;

share/qtcreator/qml/qmlpuppet/qml2puppet/instances/servernodeinstance.h

@@ -71,6 +71,7 @@ class ServerNodeInstance
     friend class Qt5InformationNodeInstanceServer;
     friend class Qt5NodeInstanceServer;
     friend class Qt5PreviewNodeInstanceServer;
+    friend class Qt5CaptureNodeInstanceServer;
     friend class Qt5TestNodeInstanceServer;
     friend class QHash<qint32, ServerNodeInstance>;
     friend uint qHash(const ServerNodeInstance &instance);
@@ -169,6 +170,8 @@ public:
     static bool isSubclassOf(QObject *object, const QByteArray &superTypeName);
 
     void setModifiedFlag(bool b);
+    void updateDirtyNodeRecursive();
+    bool holdsGraphical() const;
 
 private: // functions
     ServerNodeInstance(const QSharedPointer<Internal::ObjectNodeInstance> &abstractInstance);
@@ -195,7 +198,6 @@ private: // functions
     void setDeleteHeldInstance(bool deleteInstance);
     void reparent(const ServerNodeInstance &oldParentInstance, const PropertyName &oldParentProperty, const ServerNodeInstance &newParentInstance, const PropertyName &newParentProperty);
 
-
     void setId(const QString &id);
 
     static QSharedPointer<Internal::ObjectNodeInstance> createInstance(QObject *objectToBeWrapped);
@@ -204,10 +206,6 @@ private: // functions
 
     void setNodeSource(const QString &source);
 
-    bool holdsGraphical() const;
-
-    void updateDirtyNodeRecursive();
-
     QObject *internalObject() const; // should be not used outside of the nodeinstances!!!!
 
 private: // variables

src/plugins/qmldesigner/CMakeLists.txt

@@ -505,6 +505,12 @@ extend_qtc_plugin(QmlDesigner
     puppetbuildprogressdialog.cpp puppetbuildprogressdialog.h puppetbuildprogressdialog.ui
     puppetcreator.cpp puppetcreator.h
     puppetdialog.cpp puppetdialog.h puppetdialog.ui
+    connectionmanagerinterface.cpp connectionmanagerinterface.h
+    baseconnectionmanager.cpp baseconnectionmanager.h
+    connectionmanager.cpp connectionmanager.h
+    capturingconnectionmanager.cpp capturingconnectionmanager.h
+    interactiveconnectionmanager.cpp interactiveconnectionmanager.h
+    qprocessuniqueptr.h
 )
 
 extend_qtc_plugin(QmlDesigner

src/plugins/qmldesigner/components/itemlibrary/itemlibraryassetimporter.cpp

@@ -86,7 +86,7 @@ void ItemLibraryAssetImporter::importQuick3D(const QStringList &inputFiles,
 
     if (!isCancelled()) {
         // Wait for icon generation processes to finish
-        if (m_qmlPuppetProcesses.isEmpty()) {
+        if (m_qmlPuppetProcesses.empty()) {
             finalizeQuick3DImport();
         } else {
             m_qmlPuppetCount = m_qmlPuppetProcesses.size();
@@ -186,10 +186,12 @@ void ItemLibraryAssetImporter::processFinished(int exitCode, QProcess::ExitStatu
 
     auto process = qobject_cast<QProcess *>(sender());
     if (process) {
-        m_qmlPuppetProcesses.remove(process);
-        process->deleteLater();
+        m_qmlPuppetProcesses.erase(
+            std::remove_if(m_qmlPuppetProcesses.begin(),
+                           m_qmlPuppetProcesses.end(),
+                           [&](const auto &entry) { return entry.get() == process; }));
         const QString progressTitle = tr("Generating icons.");
-        if (m_qmlPuppetProcesses.isEmpty()) {
+        if (m_qmlPuppetProcesses.empty()) {
             notifyProgress(100, progressTitle);
             finalizeQuick3DImport();
         } else {
@@ -215,7 +217,6 @@ void ItemLibraryAssetImporter::reset()
     m_tempDir = new QTemporaryDir;
     m_importFiles.clear();
     m_overwrittenImports.clear();
-    qDeleteAll(m_qmlPuppetProcesses);
     m_qmlPuppetProcesses.clear();
     m_qmlPuppetCount = 0;
 #endif
@@ -498,16 +499,21 @@ bool ItemLibraryAssetImporter::generateComponentIcon(int size, const QString &ic
         puppetCreator.createQml2PuppetExecutableIfMissing();
         QStringList puppetArgs;
         puppetArgs << "--rendericon" << QString::number(size) << iconFile << iconSource;
-        QProcess *process = puppetCreator.createPuppetProcess(
-                    "custom", {}, this, "", SLOT(processFinished(int, QProcess::ExitStatus)), puppetArgs);
+        QProcessUniquePointer process = puppetCreator.createPuppetProcess(
+            "custom",
+            {},
+            this,
+            std::function<void()>(),
+            [&](int exitCode, QProcess::ExitStatus exitStatus) {
+                processFinished(exitCode, exitStatus);
+            },
+            puppetArgs);
 
         if (process->waitForStarted(5000)) {
-            connect(process, QOverload<int, QProcess::ExitStatus>::of(&QProcess::finished),
-                    process, &QProcess::deleteLater);
-            m_qmlPuppetProcesses << process;
+            m_qmlPuppetProcesses.push_back(std::move(process));
             return true;
         } else {
-            delete process;
+            process.reset();
         }
     }
     return false;

src/plugins/qmldesigner/components/itemlibrary/itemlibraryassetimporter.h

@@ -24,14 +24,16 @@
 ****************************************************************************/
 #pragma once
 
+#include "import.h"
+
+#include <qprocessuniqueptr.h>
+
 #include <QSet>
-#include <QtCore/qobject.h>
-#include <QtCore/qstringlist.h>
 #include <QtCore/qhash.h>
 #include <QtCore/qjsonobject.h>
+#include <QtCore/qobject.h>
 #include <QtCore/qprocess.h>
-
-#include "import.h"
+#include <QtCore/qstringlist.h>
 
 QT_BEGIN_NAMESPACE
 class QSSGAssetImportManager;
@@ -99,7 +101,7 @@ private:
     bool m_cancelled = false;
     QString m_importPath;
     QTemporaryDir *m_tempDir = nullptr;
-    QSet<QProcess *> m_qmlPuppetProcesses;
+    std::vector<QProcessUniquePointer> m_qmlPuppetProcesses;
     int m_qmlPuppetCount = 0;
 };
 } // QmlDesigner

src/plugins/qmldesigner/designercore/include/nodeinstanceview.h

@@ -62,6 +62,7 @@ class RemovePropertiesCommand;
 class CompleteComponentCommand;
 class InformationContainer;
 class TokenCommand;
+class ConnectionManagerInterface;
 
 class QMLDESIGNERCORE_EXPORT NodeInstanceView : public AbstractView, public NodeInstanceClientInterface
 {
@@ -72,7 +73,7 @@ class QMLDESIGNERCORE_EXPORT NodeInstanceView : public AbstractView, public Node
 public:
     using Pointer = QWeakPointer<NodeInstanceView>;
 
-    explicit NodeInstanceView(QObject *parent = nullptr, NodeInstanceServerInterface::RunModus runModus = NodeInstanceServerInterface::NormalModus);
+    explicit NodeInstanceView(ConnectionManagerInterface &connectionManager);
     ~NodeInstanceView() override;
 
     void modelAttached(Model *model) override;
@@ -94,7 +95,7 @@ public:
     void auxiliaryDataChanged(const ModelNode &node, const PropertyName &name, const QVariant &data) override;
     void customNotification(const AbstractView *view, const QString &identifier, const QList<ModelNode> &nodeList, const QList<QVariant> &data) override;
     void nodeSourceChanged(const ModelNode &modelNode, const QString &newNodeSource) override;
-
+    void capturedData(const CapturedDataCommand &capturedData) override;
     void currentStateChanged(const ModelNode &node) override;
 
     QList<NodeInstance> instances() const;
@@ -142,6 +143,7 @@ protected:
     void timerEvent(QTimerEvent *event) override;
 
 private: // functions
+    std::unique_ptr<NodeInstanceServerProxy> createNodeInstanceServerProxy();
     void activateState(const NodeInstance &instance);
     void activateBaseState();
 
@@ -161,9 +163,8 @@ private: // functions
     void setStateInstance(const NodeInstance &stateInstance);
     void clearStateInstance();
 
-    NodeInstanceServerInterface *nodeInstanceServer() const;
-    QMultiHash<ModelNode, InformationName> informationChanged(const QVector<InformationContainer> &containerVector);
-
+    QMultiHash<ModelNode, InformationName> informationChanged(
+        const QVector<InformationContainer> &containerVector);
 
     CreateSceneCommand createCreateSceneCommand();
     ClearSceneCommand createClearSceneCommand() const;
@@ -196,16 +197,15 @@ private: // functions
     // puppet to creator command handlers
     void handlePuppetKeyPress(int key, Qt::KeyboardModifiers modifiers);
 
+private:
     NodeInstance m_rootNodeInstance;
     NodeInstance m_activeStateInstance;
-
     QHash<ModelNode, NodeInstance> m_nodeInstanceHash;
     QHash<ModelNode, QImage> m_statePreviewImage;
-
-    QPointer<NodeInstanceServerProxy> m_nodeInstanceServer;
+    ConnectionManagerInterface &m_connectionManager;
+    std::unique_ptr<NodeInstanceServerProxy> m_nodeInstanceServer;
     QImage m_baseStatePreviewImage;
     QElapsedTimer m_lastCrashTime;
-    NodeInstanceServerInterface::RunModus m_runModus;
     ProjectExplorer::Target *m_currentTarget = nullptr;
     int m_restartProcessTimerId;
     RewriterTransaction m_puppetTransaction;

src/plugins/qmldesigner/designercore/include/viewmanager.h

@@ -122,7 +122,7 @@ private: // functions
     QList<QPointer<AbstractView>> standardViews() const;
 
 private: // variables
-    ViewManagerData *d;
+    std::unique_ptr<ViewManagerData> d;
 };
 
 } // namespace QmlDesigner

src/plugins/qmldesigner/designercore/instances/baseconnectionmanager.cpp

@@ -0,0 +1,126 @@
+/****************************************************************************
+**
+** Copyright (C) 2020 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#include "baseconnectionmanager.h"
+#include "endpuppetcommand.h"
+#include "nodeinstanceserverproxy.h"
+#include "nodeinstanceview.h"
+
+#include <QLocalSocket>
+
+namespace QmlDesigner {
+
+void BaseConnectionManager::setUp(NodeInstanceServerProxy *nodeInstanceServerProxy,
+                                  const QString &,
+                                  ProjectExplorer::Target *)
+{
+    m_nodeInstanceServerProxy = nodeInstanceServerProxy;
+    m_isActive = true;
+}
+
+void BaseConnectionManager::shutDown()
+{
+    m_isActive = false;
+
+    writeCommand(QVariant::fromValue(EndPuppetCommand()));
+
+    m_nodeInstanceServerProxy = nullptr;
+}
+
+bool BaseConnectionManager::isActive() const
+{
+    return m_isActive;
+}
+
+void BaseConnectionManager::showCannotConnectToPuppetWarningAndSwitchToEditMode() {}
+
+void BaseConnectionManager::processFinished()
+{
+    processFinished(-1, QProcess::CrashExit);
+}
+
+void BaseConnectionManager::writeCommandToIODevice(const QVariant &command,
+                                                   QIODevice *ioDevice,
+                                                   unsigned int commandCounter)
+{
+    if (ioDevice) {
+        QByteArray block;
+        QDataStream out(&block, QIODevice::WriteOnly);
+        out.setVersion(QDataStream::Qt_4_8);
+        out << quint32(0);
+        out << quint32(commandCounter);
+        out << command;
+        out.device()->seek(0);
+        out << quint32(static_cast<unsigned long long>(block.size()) - sizeof(quint32));
+
+        ioDevice->write(block);
+    }
+}
+
+void BaseConnectionManager::dispatchCommand(const QVariant &command, Connection &)
+{
+    if (!isActive())
+        return;
+
+    m_nodeInstanceServerProxy->dispatchCommand(command);
+}
+
+void BaseConnectionManager::readDataStream(Connection &connection)
+{
+    QList<QVariant> commandList;
+
+    while (!connection.socket->atEnd()) {
+        if (connection.socket->bytesAvailable() < int(sizeof(quint32)))
+            break;
+
+        QDataStream in(connection.socket.get());
+        in.setVersion(QDataStream::Qt_4_8);
+
+        if (connection.blockSize == 0)
+            in >> connection.blockSize;
+
+        if (connection.socket->bytesAvailable() < connection.blockSize)
+            break;
+
+        quint32 commandCounter = 0;
+        in >> commandCounter;
+        bool commandLost = !((connection.lastReadCommandCounter == 0 && commandCounter == 0)
+                             || (connection.lastReadCommandCounter + 1 == commandCounter));
+        if (commandLost)
+            qDebug() << "server command lost: " << connection.lastReadCommandCounter << commandCounter;
+        connection.lastReadCommandCounter = commandCounter;
+
+        QVariant command;
+        in >> command;
+        connection.blockSize = 0;
+
+        commandList.append(command);
+    }
+
+    for (const QVariant &command : commandList)
+        dispatchCommand(command, connection);
+}
+} // namespace QmlDesigner
+

src/plugins/qmldesigner/designercore/instances/baseconnectionmanager.h

@@ -0,0 +1,76 @@
+/****************************************************************************
+**
+** Copyright (C) 2020 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#pragma once
+
+#include "connectionmanagerinterface.h"
+
+#include <QProcess>
+
+QT_BEGIN_NAMESPACE
+class QLocalSocket;
+QT_END_NAMESPACE
+
+namespace ProjectExplorer {
+class Target;
+}
+
+namespace QmlDesigner {
+
+class AbstractView;
+class NodeInstanceServerProxy;
+
+class QMLDESIGNERCORE_EXPORT BaseConnectionManager : public QObject, public ConnectionManagerInterface
+{
+    Q_OBJECT
+
+public:
+    BaseConnectionManager() = default;
+
+    void setUp(NodeInstanceServerProxy *nodeInstanceServerProxy,
+               const QString &qrcMappingString,
+               ProjectExplorer::Target *target) override;
+    void shutDown() override;
+
+    bool isActive() const;
+
+protected:
+    void dispatchCommand(const QVariant &command, Connection &connection) override;
+    virtual void showCannotConnectToPuppetWarningAndSwitchToEditMode();
+    using ConnectionManagerInterface::processFinished;
+    void processFinished();
+    void writeCommandToIODevice(const QVariant &command,
+                                QIODevice *ioDevice,
+                                unsigned int commandCounter);
+    void readDataStream(Connection &connection);
+
+    NodeInstanceServerProxy *nodeInstanceServerProxy() const { return m_nodeInstanceServerProxy; }
+
+private:
+    NodeInstanceServerProxy *m_nodeInstanceServerProxy{};
+    bool m_isActive = false;
+};
+
+} // namespace QmlDesigner

src/plugins/qmldesigner/designercore/instances/capturingconnectionmanager.cpp

@@ -0,0 +1,61 @@
+/****************************************************************************
+**
+** Copyright (C) 2020 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#include "capturingconnectionmanager.h"
+
+#include <coreplugin/messagebox.h>
+
+namespace QmlDesigner {
+
+void CapturingConnectionManager::setUp(NodeInstanceServerProxy *nodeInstanceServerProxy,
+                                       const QString &qrcMappingString,
+                                       ProjectExplorer::Target *target)
+{
+    InteractiveConnectionManager::setUp(nodeInstanceServerProxy, qrcMappingString, target);
+
+    int indexOfCapturePuppetStream = QCoreApplication::arguments().indexOf(
+        "-capture-puppet-stream");
+    if (indexOfCapturePuppetStream > 0) {
+        m_captureFileForTest.setFileName(
+            QCoreApplication::arguments().at(indexOfCapturePuppetStream + 1));
+        bool isOpen = m_captureFileForTest.open(QIODevice::WriteOnly);
+        qDebug() << "file is open: " << isOpen;
+    }
+}
+
+void CapturingConnectionManager::processFinished(int exitCode, QProcess::ExitStatus exitStatus)
+{
+    if (m_captureFileForTest.isOpen()) {
+        m_captureFileForTest.close();
+        Core::AsynchronousMessageBox::warning(
+            tr("QML Emulation Layer (QML Puppet) Crashed"),
+            tr("You are recording a puppet stream and the emulations layer crashed. "
+               "It is recommended to reopen the Qt Quick Designer and start again."));
+    }
+
+    InteractiveConnectionManager::processFinished(exitCode, exitStatus);
+}
+
+} // namespace QmlDesigner

src/plugins/qmldesigner/designercore/instances/capturingconnectionmanager.h

@@ -0,0 +1,46 @@
+/****************************************************************************
+**
+** Copyright (C) 2020 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#pragma once
+
+#include <interactiveconnectionmanager.h>
+
+namespace QmlDesigner {
+
+class CapturingConnectionManager : public InteractiveConnectionManager
+{
+public:
+    void setUp(NodeInstanceServerProxy *nodeInstanceServerProxy,
+               const QString &qrcMappingString,
+               ProjectExplorer::Target *target) override;
+
+    void processFinished(int exitCode, QProcess::ExitStatus exitStatus) override;
+
+private:
+    QFile m_captureFileForTest;
+};
+
+} // namespace QmlDesigner
+

src/plugins/qmldesigner/designercore/instances/connectionmanager.cpp

@@ -0,0 +1,177 @@
+/****************************************************************************
+**
+** Copyright (C) 2020 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#include "connectionmanager.h"
+#include "endpuppetcommand.h"
+#include "nodeinstanceserverproxy.h"
+#include "nodeinstanceview.h"
+#include "puppetcreator.h"
+
+#ifndef QMLDESIGNER_TEST
+#include <qmldesignerplugin.h>
+#endif
+
+#include <projectexplorer/target.h>
+
+#include <QLocalServer>
+#include <QLocalSocket>
+#include <QUuid>
+
+namespace QmlDesigner {
+
+ConnectionManager::ConnectionManager() = default;
+
+ConnectionManager::~ConnectionManager() = default;
+
+void ConnectionManager::setUp(NodeInstanceServerProxy *nodeInstanceServerProxy,
+                              const QString &qrcMappingString,
+                              ProjectExplorer::Target *target)
+{
+    BaseConnectionManager::setUp(nodeInstanceServerProxy, qrcMappingString, target);
+
+    m_localServer = std::make_unique<QLocalServer>();
+    QString socketToken(QUuid::createUuid().toString());
+    m_localServer->listen(socketToken);
+    m_localServer->setMaxPendingConnections(3);
+
+    NodeInstanceView *nodeInstanceView = nodeInstanceServerProxy->nodeInstanceView();
+    PuppetCreator puppetCreator(target, nodeInstanceView->model());
+    puppetCreator.setQrcMappingString(qrcMappingString);
+
+    puppetCreator.createQml2PuppetExecutableIfMissing();
+
+    for (Connection &connection : m_connections) {
+        connection.qmlPuppetProcess = puppetCreator.createPuppetProcess(
+            connection.mode,
+            socketToken,
+            nodeInstanceView,
+            [&] { printProcessOutput(connection.qmlPuppetProcess.get(), connection.name); },
+            [&](int exitCode, QProcess::ExitStatus exitStatus) {
+                processFinished(exitCode, exitStatus);
+            });
+
+        const int second = 1000;
+        int waitConstant = 8 * second;
+
+        if (!connection.qmlPuppetProcess->waitForStarted(waitConstant)) {
+            closeSocketsAndKillProcesses();
+            showCannotConnectToPuppetWarningAndSwitchToEditMode();
+            return;
+        }
+
+        waitConstant /= 2;
+
+        bool connectedToPuppet = true;
+        if (!m_localServer->hasPendingConnections())
+            connectedToPuppet = m_localServer->waitForNewConnection(waitConstant);
+
+        if (connectedToPuppet) {
+            connection.socket.reset(m_localServer->nextPendingConnection());
+            QObject::connect(connection.socket.get(), &QIODevice::readyRead, [&] {
+                readDataStream(connection);
+            });
+        } else {
+            closeSocketsAndKillProcesses();
+            showCannotConnectToPuppetWarningAndSwitchToEditMode();
+            return;
+        }
+    }
+
+    m_localServer->close();
+
+    connect(this,
+            &ConnectionManager::processCrashed,
+            nodeInstanceServerProxy,
+            &NodeInstanceServerProxy::processCrashed);
+}
+
+void ConnectionManager::shutDown()
+{
+    BaseConnectionManager::shutDown();
+
+    closeSocketsAndKillProcesses();
+
+    m_localServer.reset();
+
+    for (Connection &connection : m_connections)
+        connection.clear();
+}
+
+void ConnectionManager::writeCommand(const QVariant &command)
+{
+    for (Connection &connection : m_connections)
+        writeCommandToIODevice(command, connection.socket.get(), m_writeCommandCounter);
+
+    m_writeCommandCounter++;
+}
+
+void ConnectionManager::processFinished(int exitCode, QProcess::ExitStatus exitStatus)
+{
+    auto finishedProcess = qobject_cast<QProcess *>(sender());
+    if (finishedProcess)
+        qWarning() << "Process" << (exitStatus == QProcess::CrashExit ? "crashed:" : "finished:")
+                   << finishedProcess->arguments() << "exitCode:" << exitCode;
+    else
+        qWarning() << "Process" << (exitStatus == QProcess::CrashExit ? "crashed:" : "finished:")
+                   << sender() << "exitCode:" << exitCode;
+
+    writeCommand(QVariant::fromValue(EndPuppetCommand()));
+
+    closeSocketsAndKillProcesses();
+
+    if (exitStatus == QProcess::CrashExit)
+        emit processCrashed();
+}
+
+void ConnectionManager::closeSocketsAndKillProcesses()
+{
+    for (Connection &connection : m_connections) {
+        if (connection.socket) {
+            disconnect(connection.socket.get());
+            disconnect(connection.qmlPuppetProcess.get());
+            connection.socket->waitForBytesWritten(1000);
+            connection.socket->abort();
+        }
+
+        if (connection.qmlPuppetProcess) {
+            QTimer::singleShot(3000, connection.qmlPuppetProcess.get(), &QProcess::terminate);
+            QTimer::singleShot(6000, connection.qmlPuppetProcess.get(), &QProcess::kill);
+        }
+
+        connection.clear();
+    }
+}
+
+void ConnectionManager::printProcessOutput(QProcess *process, const QString &connectionName)
+{
+    while (process && process->canReadLine()) {
+        QByteArray line = process->readLine();
+        line.chop(1);
+        qDebug().nospace() << connectionName << " Puppet: " << line;
+    }
+    qDebug() << "\n";
+}
+
+} // namespace QmlDesigner

src/plugins/qmldesigner/designercore/instances/connectionmanager.h

@@ -0,0 +1,77 @@
+/****************************************************************************
+**
+** Copyright (C) 2020 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#pragma once
+
+#include "baseconnectionmanager.h"
+#include "nodeinstanceserverinterface.h"
+
+#include <QElapsedTimer>
+#include <QFile>
+#include <QProcess>
+
+QT_BEGIN_NAMESPACE
+class QLocalServer;
+class QLocalSocket;
+QT_END_NAMESPACE
+
+namespace QmlDesigner {
+
+class QMLDESIGNERCORE_EXPORT ConnectionManager : public BaseConnectionManager
+{
+    Q_OBJECT
+
+public:
+    ConnectionManager();
+    ~ConnectionManager() override;
+    enum PuppetStreamType { FirstPuppetStream, SecondPuppetStream, ThirdPuppetStream };
+
+    void setUp(NodeInstanceServerProxy *nodeInstanceServerProxy,
+               const QString &qrcMappingString,
+               ProjectExplorer::Target *target) override;
+    void shutDown() override;
+
+    void writeCommand(const QVariant &command) override;
+
+signals:
+    void processCrashed();
+
+protected:
+    using BaseConnectionManager::processFinished;
+    void processFinished(int exitCode, QProcess::ExitStatus exitStatus) override;
+
+private:
+    void printProcessOutput(QProcess *process, const QString &connectionName);
+    void closeSocketsAndKillProcesses();
+
+protected:
+    std::vector<Connection> m_connections;
+    quint32 m_writeCommandCounter = 0;
+
+private:
+    std::unique_ptr<QLocalServer> m_localServer;
+};
+
+} // namespace QmlDesigner

src/plugins/qmldesigner/designercore/instances/connectionmanagerinterface.cpp

@@ -0,0 +1,54 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#include "connectionmanagerinterface.h"
+
+#include <QLocalSocket>
+#include <QProcess>
+
+namespace QmlDesigner {
+
+ConnectionManagerInterface::~ConnectionManagerInterface() = default;
+
+ConnectionManagerInterface::Connection::~Connection() = default;
+
+ConnectionManagerInterface::Connection::Connection(const QString &name, const QString &mode)
+    : name{name}
+    , mode{mode}
+    , timer{std::make_unique<QTimer>()}
+{}
+
+ConnectionManagerInterface::Connection::Connection(Connection &&connection) = default;
+
+void ConnectionManagerInterface::Connection::clear()
+{
+    qmlPuppetProcess.reset();
+    socket.reset();
+    blockSize = 0;
+    lastReadCommandCounter = 0;
+    timer->stop();
+}
+
+} // namespace QmlDesigner

src/plugins/qmldesigner/designercore/instances/connectionmanagerinterface.h

@@ -0,0 +1,80 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#include "qprocessuniqueptr.h"
+#include <qmldesignercorelib_global.h>
+
+
+QT_BEGIN_NAMESPACE
+class QLocalSocket;
+QT_END_NAMESPACE
+
+namespace ProjectExplorer {
+class Target;
+}
+
+namespace QmlDesigner {
+
+class NodeInstanceServerProxy;
+
+class QMLDESIGNERCORE_EXPORT ConnectionManagerInterface
+{
+public:
+    class QMLDESIGNERCORE_EXPORT Connection final
+    {
+    public:
+        Connection(const QString &name, const QString &mode);
+        Connection(Connection &&connection);
+
+        ~Connection();
+
+        void clear();
+
+    public:
+        QString name;
+        QString mode;
+        QProcessUniquePointer qmlPuppetProcess;
+        std::unique_ptr<QLocalSocket> socket;
+        quint32 blockSize = 0;
+        quint32 lastReadCommandCounter = 0;
+        std::unique_ptr<QTimer> timer;
+    };
+
+    virtual ~ConnectionManagerInterface();
+
+    virtual void setUp(NodeInstanceServerProxy *nodeInstanceServerProxy,
+                       const QString &qrcMappingString,
+                       ProjectExplorer::Target *target)
+        = 0;
+    virtual void shutDown() = 0;
+
+    virtual void writeCommand(const QVariant &command) = 0;
+
+protected:
+    virtual void dispatchCommand(const QVariant &command, Connection &connection) = 0;
+    virtual void processFinished(int exitCode, QProcess::ExitStatus exitStatus) = 0;
+};
+
+} // namespace QmlDesigner

src/plugins/qmldesigner/designercore/instances/instances.pri

@@ -1,14 +1,25 @@
 INCLUDEPATH += $$PWD/
 
-HEADERS += $$PWD/../include/nodeinstance.h
-HEADERS += $$PWD/nodeinstanceserverproxy.h
-HEADERS += $$PWD/puppetcreator.h
-HEADERS += $$PWD/puppetbuildprogressdialog.h
+HEADERS += $$PWD/../include/nodeinstance.h \
+    $$PWD/baseconnectionmanager.h \
+    $$PWD/capturingconnectionmanager.h \
+    $$PWD/connectionmanager.h \
+    $$PWD/connectionmanagerinterface.h \
+    $$PWD/interactiveconnectionmanager.h \
+    $$PWD/nodeinstanceserverproxy.h \
+    $$PWD/puppetcreator.h \
+    $$PWD/puppetbuildprogressdialog.h \
+    $$PWD/qprocessuniqueptr.h
 
-SOURCES +=  $$PWD/nodeinstanceserverproxy.cpp
-SOURCES +=  $$PWD/nodeinstance.cpp
-SOURCES +=  $$PWD/nodeinstanceview.cpp
-SOURCES += $$PWD/puppetcreator.cpp
-SOURCES += $$PWD/puppetbuildprogressdialog.cpp
+SOURCES +=  $$PWD/nodeinstanceserverproxy.cpp \
+    $$PWD/baseconnectionmanager.cpp \
+    $$PWD/capturingconnectionmanager.cpp \
+    $$PWD/connectionmanager.cpp \
+    $$PWD/connectionmanagerinterface.cpp \
+    $$PWD/interactiveconnectionmanager.cpp \
+    $$PWD/nodeinstance.cpp \
+    $$PWD/nodeinstanceview.cpp \
+    $$PWD/puppetcreator.cpp \
+    $$PWD/puppetbuildprogressdialog.cpp
 
 FORMS += $$PWD/puppetbuildprogressdialog.ui

src/plugins/qmldesigner/designercore/instances/interactiveconnectionmanager.cpp

@@ -0,0 +1,109 @@
+/****************************************************************************
+**
+** Copyright (C) 2020 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#include "interactiveconnectionmanager.h"
+#include "nodeinstanceserverproxy.h"
+#include "nodeinstanceview.h"
+
+#include <qmldesignerplugin.h>
+
+#include <coreplugin/messagebox.h>
+
+#include <QLocalSocket>
+
+namespace QmlDesigner {
+
+InteractiveConnectionManager::InteractiveConnectionManager()
+{
+    m_connections.emplace_back("Editor", "editormode");
+    m_connections.emplace_back("Render", "rendermode");
+    m_connections.emplace_back("Preview", "previewmode");
+}
+
+void InteractiveConnectionManager::setUp(NodeInstanceServerProxy *nodeInstanceServerProxy,
+                                         const QString &qrcMappingString,
+                                         ProjectExplorer::Target *target)
+{
+    ConnectionManager::setUp(nodeInstanceServerProxy, qrcMappingString, target);
+
+    DesignerSettings settings = QmlDesignerPlugin::instance()->settings();
+    int timeOutTime = settings.value(DesignerSettingsKey::PUPPET_KILL_TIMEOUT).toInt();
+    for (Connection &connection : m_connections)
+        connection.timer->setInterval(timeOutTime);
+
+    if (QmlDesignerPlugin::instance()
+            ->settings()
+            .value(DesignerSettingsKey::DEBUG_PUPPET)
+            .toString()
+            .isEmpty()) {
+        for (Connection &connection : m_connections) {
+            QObject::connect(connection.timer.get(), &QTimer::timeout, [&]() {
+                puppetTimeout(connection);
+            });
+        }
+    }
+}
+
+void InteractiveConnectionManager::showCannotConnectToPuppetWarningAndSwitchToEditMode()
+{
+    Core::AsynchronousMessageBox::warning(
+        tr("Cannot Connect to QML Emulation Layer (QML Puppet)"),
+        tr("The executable of the QML emulation layer (QML Puppet) may not be responding. "
+           "Switching to another kit might help."));
+
+    QmlDesignerPlugin::instance()->switchToTextModeDeferred();
+    nodeInstanceServerProxy()->nodeInstanceView()->emitDocumentMessage(
+        tr("Cannot Connect to QML Emulation Layer (QML Puppet)"));
+}
+
+void InteractiveConnectionManager::dispatchCommand(const QVariant &command, Connection &connection)
+{
+    static const int puppetAliveCommandType = QMetaType::type("PuppetAliveCommand");
+
+    if (command.userType() == puppetAliveCommandType) {
+        puppetAlive(connection);
+    } else {
+        BaseConnectionManager::dispatchCommand(command, connection);
+    }
+}
+
+void InteractiveConnectionManager::puppetTimeout(Connection &connection)
+{
+    if (connection.socket && connection.socket->waitForReadyRead(10)) {
+        connection.timer->stop();
+        connection.timer->start();
+        return;
+    }
+
+    processFinished();
+}
+
+void InteractiveConnectionManager::puppetAlive(Connection &connection)
+{
+    connection.timer->stop();
+    connection.timer->start();
+}
+
+} // namespace QmlDesigner

src/plugins/qmldesigner/designercore/instances/interactiveconnectionmanager.h

@@ -0,0 +1,51 @@
+/****************************************************************************
+**
+** Copyright (C) 2020 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#pragma once
+
+#include "connectionmanager.h"
+
+namespace QmlDesigner {
+
+class InteractiveConnectionManager : public ConnectionManager
+{
+public:
+    InteractiveConnectionManager();
+
+    void setUp(NodeInstanceServerProxy *nodeInstanceServerProxy,
+               const QString &qrcMappingString,
+               ProjectExplorer::Target *target) override;
+
+    void showCannotConnectToPuppetWarningAndSwitchToEditMode() override;
+
+protected:
+    void dispatchCommand(const QVariant &command, Connection &connection) override;
+
+private:
+    void puppetTimeout(Connection &connection);
+    void puppetAlive(Connection &connection);
+};
+
+} // namespace QmlDesigner

src/plugins/qmldesigner/designercore/instances/nodeinstanceserverproxy.cpp

@@ -25,6 +25,7 @@
 
 #include "nodeinstanceserverproxy.h"
 
+#include "connectionmanagerinterface.h"
 #include "puppetcreator.h"
 
 #include <changeauxiliarycommand.h>
@@ -60,218 +61,55 @@
 #include <valueschangedcommand.h>
 #include <view3dactioncommand.h>
 
-#include <nodeinstanceview.h>
 #include <import.h>
+#include <nodeinstanceview.h>
 #include <rewriterview.h>
 
-#ifndef QMLDESIGNER_TEST
-#include <qmldesignerplugin.h>
-#endif
-
-#include <coreplugin/icore.h>
-#include <utils/hostosinfo.h>
-#include <coreplugin/messagebox.h>
 #include <coreplugin/editormanager/editormanager.h>
+#include <coreplugin/icore.h>
 #include <projectexplorer/kit.h>
-#include <qtsupport/qtkitinformation.h>
+#include <utils/hostosinfo.h>
 #include <qtsupport/baseqtversion.h>
+#include <qtsupport/qtkitinformation.h>
 #include <qtsupport/qtsupportconstants.h>
 
+#include <QCoreApplication>
+#include <QDir>
+#include <QFileInfo>
 #include <QLocalServer>
 #include <QLocalSocket>
 #include <QLoggingCategory>
-#include <QProcess>
-#include <QCoreApplication>
-#include <QUuid>
-#include <QFileInfo>
-#include <QDir>
-#include <QTimer>
-#include <QTextStream>
 #include <QMessageBox>
+#include <QProcess>
+#include <QTextStream>
+#include <QTimer>
+#include <QUuid>
 
 namespace QmlDesigner {
 
-static Q_LOGGING_CATEGORY(instanceViewBenchmark, "qtc.nodeinstances.init", QtWarningMsg)
-
-void NodeInstanceServerProxy::showCannotConnectToPuppetWarningAndSwitchToEditMode()
-{
-#ifndef QMLDESIGNER_TEST
-    Core::AsynchronousMessageBox::warning(tr("Cannot Connect to QML Emulation Layer (QML Puppet)"),
-                                          tr("The executable of the QML emulation layer (QML Puppet) may not be responding. "
-                                             "Switching to another kit might help."));
-
-    QmlDesignerPlugin::instance()->switchToTextModeDeferred();
-    m_nodeInstanceView->emitDocumentMessage(tr("Cannot Connect to QML Emulation Layer (QML Puppet)"));
-#endif
-
-}
+static Q_LOGGING_CATEGORY(instanceViewBenchmark, "qtc.nodeinstances.init", QtWarningMsg);
 
 NodeInstanceServerProxy::NodeInstanceServerProxy(NodeInstanceView *nodeInstanceView,
-                                                 RunModus runModus,
-                                                 ProjectExplorer::Target *target)
-    : NodeInstanceServerInterface(nodeInstanceView),
-      m_localServer(new QLocalServer(this)),
-      m_nodeInstanceView(nodeInstanceView),
-      m_runModus(runModus)
+                                                 ProjectExplorer::Target *target,
+                                                 ConnectionManagerInterface &connectionManager)
+    : m_nodeInstanceView(nodeInstanceView)
+    , m_connectionManager{connectionManager}
+
 {
     if (instanceViewBenchmark().isInfoEnabled())
         m_benchmarkTimer.start();
 
-   QString socketToken(QUuid::createUuid().toString());
-   m_localServer->listen(socketToken);
-   m_localServer->setMaxPendingConnections(3);
+    m_connectionManager.setUp(this, qrcMappingString(), target);
 
-   PuppetCreator puppetCreator(target, nodeInstanceView->model());
-   puppetCreator.setQrcMappingString(qrcMappingString());
-
-   puppetCreator.createQml2PuppetExecutableIfMissing();
-
-   m_qmlPuppetEditorProcess = puppetCreator.createPuppetProcess("editormode",
-                                                              socketToken,
-                                                              this,
-                                                              SLOT(printEditorProcessOutput()),
-                                                              SLOT(processFinished(int,QProcess::ExitStatus)));
-
-   if (runModus == NormalModus) {
-       m_qmlPuppetRenderProcess = puppetCreator.createPuppetProcess("rendermode",
-                                                                    socketToken,
-                                                                    this,
-                                                                    SLOT(printRenderProcessOutput()),
-                                                                    SLOT(processFinished(int,QProcess::ExitStatus)));
-       m_qmlPuppetPreviewProcess = puppetCreator.createPuppetProcess("previewmode",
-                                                                     socketToken,
-                                                                     this,
-                                                                     SLOT(printPreviewProcessOutput()),
-                                                                     SLOT(processFinished(int,QProcess::ExitStatus)));
-   }
-
-   const int second = 1000;
-   const int waitConstant = 8 * second;
-   if (m_qmlPuppetEditorProcess->waitForStarted(waitConstant)) {
-       connect(m_qmlPuppetEditorProcess.data(), QOverload<int, QProcess::ExitStatus>::of(&QProcess::finished),
-            m_qmlPuppetEditorProcess.data(), &QProcess::deleteLater);
-    qCInfo(instanceViewBenchmark) << "puppets started:" << m_benchmarkTimer.elapsed();
-
-       if (runModus == NormalModus) {
-           m_qmlPuppetPreviewProcess->waitForStarted(waitConstant / 2);
-           connect(m_qmlPuppetPreviewProcess.data(), QOverload<int, QProcess::ExitStatus>::of(&QProcess::finished),
-                m_qmlPuppetPreviewProcess.data(), &QProcess::deleteLater);
-
-           m_qmlPuppetRenderProcess->waitForStarted(waitConstant / 2);
-           connect(m_qmlPuppetRenderProcess.data(), QOverload<int, QProcess::ExitStatus>::of(&QProcess::finished),
-                m_qmlPuppetRenderProcess.data(), &QProcess::deleteLater);
-       }
-
-       bool connectedToPuppet = true;
-
-       if (!m_localServer->hasPendingConnections())
-           connectedToPuppet = m_localServer->waitForNewConnection(waitConstant / 4);
-
-       if (connectedToPuppet) {
-           m_firstSocket = m_localServer->nextPendingConnection();
-           connect(m_firstSocket.data(), &QIODevice::readyRead, this,
-                   &NodeInstanceServerProxy::readFirstDataStream);
-
-           if (runModus == NormalModus) {
-               if (!m_localServer->hasPendingConnections())
-                   connectedToPuppet = m_localServer->waitForNewConnection(waitConstant / 4);
-
-               if (connectedToPuppet) {
-                   m_secondSocket = m_localServer->nextPendingConnection();
-                   connect(m_secondSocket.data(), &QIODevice::readyRead, this, &NodeInstanceServerProxy::readSecondDataStream);
-
-                   if (!m_localServer->hasPendingConnections())
-                        connectedToPuppet = m_localServer->waitForNewConnection(waitConstant / 4);
-
-    qCInfo(instanceViewBenchmark) << "puppets connected:" << m_benchmarkTimer.elapsed();
-                   if (connectedToPuppet) {
-                       m_thirdSocket = m_localServer->nextPendingConnection();
-                       connect(m_thirdSocket.data(), &QIODevice::readyRead, this, &NodeInstanceServerProxy::readThirdDataStream);
-                   } else {
-                       showCannotConnectToPuppetWarningAndSwitchToEditMode();
-                   }
-               } else {
-                   showCannotConnectToPuppetWarningAndSwitchToEditMode();
-               }
-           }
-       } else {
-           showCannotConnectToPuppetWarningAndSwitchToEditMode();
-       }
-
-   } else {
-       showCannotConnectToPuppetWarningAndSwitchToEditMode();
-   }
-
-   m_localServer->close();
-
-
-   int indexOfCapturePuppetStream = QCoreApplication::arguments().indexOf("-capture-puppet-stream");
-   if (indexOfCapturePuppetStream > 0) {
-       m_captureFileForTest.setFileName(QCoreApplication::arguments().at(indexOfCapturePuppetStream + 1));
-       bool isOpen = m_captureFileForTest.open(QIODevice::WriteOnly);
-       qDebug() << "file is open: " << isOpen;
-   }
-
-#ifndef QMLDESIGNER_TEST
-   DesignerSettings settings = QmlDesignerPlugin::instance()->settings();
-   int timeOutTime = settings.value(DesignerSettingsKey::PUPPET_KILL_TIMEOUT).toInt();
-   m_firstTimer.setInterval(timeOutTime);
-   m_secondTimer.setInterval(timeOutTime);
-   m_thirdTimer.setInterval(timeOutTime);
-
-    if (QmlDesignerPlugin::instance()->settings().value(DesignerSettingsKey::
-            DEBUG_PUPPET).toString().isEmpty()) {
-
-       connect(&m_firstTimer, &QTimer::timeout, this,
-               [this](){ NodeInstanceServerProxy::puppetTimeout(FirstPuppetStream); });
-       connect(&m_secondTimer, &QTimer::timeout, this,
-               [this](){ NodeInstanceServerProxy::puppetTimeout(SecondPuppetStream); });
-       connect(&m_thirdTimer, &QTimer::timeout, this,
-               [this](){ NodeInstanceServerProxy::puppetTimeout(ThirdPuppetStream); });
-   }
-#endif
+    qCInfo(instanceViewBenchmark) << "puppets setup:" << m_benchmarkTimer.elapsed();
 }
 
 NodeInstanceServerProxy::~NodeInstanceServerProxy()
 {
-    m_destructing = true;
-
-    disconnect(this, SLOT(processFinished(int,QProcess::ExitStatus)));
-
-    writeCommand(QVariant::fromValue(EndPuppetCommand()));
-
-    if (m_firstSocket) {
-        m_firstSocket->waitForBytesWritten(1000);
-        m_firstSocket->abort();
-    }
-
-    if (m_secondSocket) {
-        m_secondSocket->waitForBytesWritten(1000);
-        m_secondSocket->abort();
-    }
-
-    if (m_thirdSocket) {
-        m_thirdSocket->waitForBytesWritten(1000);
-        m_thirdSocket->abort();
-    }
-
-    if (m_qmlPuppetEditorProcess) {
-        QTimer::singleShot(3000, m_qmlPuppetEditorProcess.data(), &QProcess::terminate);
-        QTimer::singleShot(6000, m_qmlPuppetEditorProcess.data(), &QProcess::kill);
-    }
-
-    if (m_qmlPuppetPreviewProcess) {
-        QTimer::singleShot(3000, m_qmlPuppetPreviewProcess.data(), &QProcess::terminate);
-        QTimer::singleShot(6000, m_qmlPuppetPreviewProcess.data(), &QProcess::kill);
-    }
-
-    if (m_qmlPuppetRenderProcess) {
-         QTimer::singleShot(3000, m_qmlPuppetRenderProcess.data(), &QProcess::terminate);
-         QTimer::singleShot(6000, m_qmlPuppetRenderProcess.data(), &QProcess::kill);
-    }
+    m_connectionManager.shutDown();
 }
 
-void NodeInstanceServerProxy::dispatchCommand(const QVariant &command, PuppetStreamType puppetStreamType)
+void NodeInstanceServerProxy::dispatchCommand(const QVariant &command)
 {
     static const int informationChangedCommandType = QMetaType::type("InformationChangedCommand");
     static const int valuesChangedCommandType = QMetaType::type("ValuesChangedCommand");
@@ -280,15 +118,10 @@ void NodeInstanceServerProxy::dispatchCommand(const QVariant &command, PuppetStr
     static const int childrenChangedCommandType = QMetaType::type("ChildrenChangedCommand");
     static const int statePreviewImageChangedCommandType = QMetaType::type("StatePreviewImageChangedCommand");
     static const int componentCompletedCommandType = QMetaType::type("ComponentCompletedCommand");
-    static const int synchronizeCommandType = QMetaType::type("SynchronizeCommand");
     static const int tokenCommandType = QMetaType::type("TokenCommand");
     static const int debugOutputCommandType = QMetaType::type("DebugOutputCommand");
-    static const int puppetAliveCommandType = QMetaType::type("PuppetAliveCommand");
     static const int changeSelectionCommandType = QMetaType::type("ChangeSelectionCommand");
-    static const int puppetToCreatorCommand = QMetaType::type("PuppetToCreatorCommand");
-
-    if (m_destructing)
-        return;
+    static const int puppetToCreatorCommandType = QMetaType::type("PuppetToCreatorCommand");
 
     qCInfo(instanceViewBenchmark) << "dispatching command" << command.userType() << command.typeName();
     if (command.userType() == informationChangedCommandType) {
@@ -311,13 +144,8 @@ void NodeInstanceServerProxy::dispatchCommand(const QVariant &command, PuppetStr
         nodeInstanceClient()->debugOutput(command.value<DebugOutputCommand>());
     } else if (command.userType() == changeSelectionCommandType) {
         nodeInstanceClient()->selectionChanged(command.value<ChangeSelectionCommand>());
-    } else if (command.userType() == puppetToCreatorCommand) {
+    } else if (command.userType() == puppetToCreatorCommandType) {
         nodeInstanceClient()->handlePuppetToCreatorCommand(command.value<PuppetToCreatorCommand>());
-    } else if (command.userType() == puppetAliveCommandType) {
-        puppetAlive(puppetStreamType);
-    } else if (command.userType() == synchronizeCommandType) {
-        SynchronizeCommand synchronizeCommand = command.value<SynchronizeCommand>();
-        m_synchronizeId = synchronizeCommand.synchronizeId();
     } else {
         Q_ASSERT(false);
     }
@@ -327,33 +155,13 @@ void NodeInstanceServerProxy::dispatchCommand(const QVariant &command, PuppetStr
 
 NodeInstanceClientInterface *NodeInstanceServerProxy::nodeInstanceClient() const
 {
-    return m_nodeInstanceView.data();
-}
-
-void NodeInstanceServerProxy::puppetAlive(NodeInstanceServerProxy::PuppetStreamType puppetStreamType)
-{
-    switch (puppetStreamType) {
-    case FirstPuppetStream:
-        m_firstTimer.stop();
-        m_firstTimer.start();
-        break;
-    case SecondPuppetStream:
-        m_secondTimer.stop();
-        m_secondTimer.start();
-        break;
-    case ThirdPuppetStream:
-        m_thirdTimer.stop();
-        m_thirdTimer.start();
-        break;
-    default:
-        break;
-    }
+    return m_nodeInstanceView;
 }
 
 QString NodeInstanceServerProxy::qrcMappingString() const
 {
-    if (m_nodeInstanceView && m_nodeInstanceView.data()->model()) {
-        RewriterView *rewriterView = m_nodeInstanceView.data()->model()->rewriterView();
+    if (m_nodeInstanceView && m_nodeInstanceView->model()) {
+        RewriterView *rewriterView = m_nodeInstanceView->model()->rewriterView();
         if (rewriterView) {
             QString mappingString;
 
@@ -374,265 +182,9 @@ QString NodeInstanceServerProxy::qrcMappingString() const
     return QString();
 }
 
-void NodeInstanceServerProxy::processFinished()
-{
-    processFinished(-1, QProcess::CrashExit);
-}
-
-void NodeInstanceServerProxy::puppetTimeout(PuppetStreamType puppetStreamType)
-{
-    switch (puppetStreamType) {
-    case FirstPuppetStream:
-        if (m_firstSocket->waitForReadyRead(10)) {
-            m_firstTimer.stop();
-            m_firstTimer.start();
-            return;
-        }
-        break;
-    case SecondPuppetStream:
-        if (m_secondSocket->waitForReadyRead(10)) {
-            m_secondTimer.stop();
-            m_secondTimer.start();
-            return;
-        }
-        break;
-    case ThirdPuppetStream:
-        if (m_thirdSocket->waitForReadyRead(10)) {
-            m_thirdTimer.stop();
-            m_thirdTimer.start();
-            return;
-        }
-        break;
-    default:
-        break;
-    }
-
-    processFinished();
-}
-
-static void writeCommandToIODecive(const QVariant &command, QIODevice *ioDevice, unsigned int commandCounter)
-{
-    if (ioDevice) {
-        QByteArray block;
-        QDataStream out(&block, QIODevice::WriteOnly);
-        out.setVersion(QDataStream::Qt_4_8);
-        out << quint32(0);
-        out << quint32(commandCounter);
-        out << command;
-        out.device()->seek(0);
-        out << quint32(block.size() - sizeof(quint32));
-
-        ioDevice->write(block);
-    }
-}
-
 void NodeInstanceServerProxy::writeCommand(const QVariant &command)
 {
-    writeCommandToIODecive(command, m_firstSocket.data(), m_writeCommandCounter);
-    writeCommandToIODecive(command, m_secondSocket.data(), m_writeCommandCounter);
-    writeCommandToIODecive(command, m_thirdSocket.data(), m_writeCommandCounter);
-
-    if (m_captureFileForTest.isWritable()) {
-        qDebug() << "Write stream to file: " << m_captureFileForTest.fileName();
-        writeCommandToIODecive(command, &m_captureFileForTest, m_writeCommandCounter);
-        qDebug() << "\twrite file: " << m_captureFileForTest.pos();
-    }
-
-    m_writeCommandCounter++;
-    if (m_runModus == TestModus) {
-        static int synchronizeId = 0;
-        synchronizeId++;
-        SynchronizeCommand synchronizeCommand(synchronizeId);
-
-        writeCommandToIODecive(QVariant::fromValue(synchronizeCommand), m_firstSocket.data(), m_writeCommandCounter);
-        m_writeCommandCounter++;
-
-        while (m_firstSocket->waitForReadyRead(100)) {
-                readFirstDataStream();
-                if (m_synchronizeId == synchronizeId)
-                    return;
-        }
-    }
-}
-
-void NodeInstanceServerProxy::processFinished(int exitCode, QProcess::ExitStatus exitStatus)
-{
-    auto finishedProcess = qobject_cast<QProcess*>(sender());
-    if (finishedProcess)
-        qWarning() << "Process" << (exitStatus == QProcess::CrashExit ? "crashed:" : "finished:") << finishedProcess->arguments() << "exitCode:" << exitCode;
-    else
-        qWarning() << "Process" << (exitStatus == QProcess::CrashExit ? "crashed:" : "finished:") << sender() << "exitCode:" << exitCode;
-
-    if (m_captureFileForTest.isOpen()) {
-        m_captureFileForTest.close();
-        Core::AsynchronousMessageBox::warning(tr("QML Emulation Layer (QML Puppet) Crashed"),
-                             tr("You are recording a puppet stream and the emulations layer crashed. "
-                                "It is recommended to reopen the Qt Quick Designer and start again."));
-    }
-
-
-    writeCommand(QVariant::fromValue(EndPuppetCommand()));
-
-    if (m_firstSocket) {
-        m_firstSocket->waitForBytesWritten(1000);
-        m_firstSocket->abort();
-    }
-
-    if (m_secondSocket) {
-        m_secondSocket->waitForBytesWritten(1000);
-        m_secondSocket->abort();
-    }
-
-    if (m_thirdSocket) {
-        m_thirdSocket->waitForBytesWritten(1000);
-        m_thirdSocket->abort();
-    }
-
-    if (exitStatus == QProcess::CrashExit)
-        emit processCrashed();
-}
-
-
-void NodeInstanceServerProxy::readFirstDataStream()
-{
-    QList<QVariant> commandList;
-
-    while (!m_firstSocket->atEnd()) {
-        if (m_firstSocket->bytesAvailable() < int(sizeof(quint32)))
-            break;
-
-        QDataStream in(m_firstSocket.data());
-        in.setVersion(QDataStream::Qt_4_8);
-
-        if (m_firstBlockSize == 0)
-            in >> m_firstBlockSize;
-
-        if (m_firstSocket->bytesAvailable() < m_firstBlockSize)
-            break;
-
-        quint32 commandCounter;
-        in >> commandCounter;
-        bool commandLost = !((m_firstLastReadCommandCounter == 0 && commandCounter == 0) || (m_firstLastReadCommandCounter + 1 == commandCounter));
-        if (commandLost)
-            qDebug() << "server command lost: " << m_firstLastReadCommandCounter <<  commandCounter;
-        m_firstLastReadCommandCounter = commandCounter;
-
-
-        QVariant command;
-        in >> command;
-        m_firstBlockSize = 0;
-
-        commandList.append(command);
-    }
-
-    foreach (const QVariant &command, commandList) {
-        dispatchCommand(command, FirstPuppetStream);
-    }
-}
-
-void NodeInstanceServerProxy::readSecondDataStream()
-{
-    QList<QVariant> commandList;
-
-    while (!m_secondSocket->atEnd()) {
-        if (m_secondSocket->bytesAvailable() < int(sizeof(quint32)))
-            break;
-
-        QDataStream in(m_secondSocket.data());
-        in.setVersion(QDataStream::Qt_4_8);
-
-        if (m_secondBlockSize == 0)
-            in >> m_secondBlockSize;
-
-        if (m_secondSocket->bytesAvailable() < m_secondBlockSize)
-            break;
-
-        quint32 commandCounter;
-        in >> commandCounter;
-        bool commandLost = !((m_secondLastReadCommandCounter == 0 && commandCounter == 0) || (m_secondLastReadCommandCounter + 1 == commandCounter));
-        if (commandLost)
-            qDebug() << "server command lost: " << m_secondLastReadCommandCounter <<  commandCounter;
-        m_secondLastReadCommandCounter = commandCounter;
-
-
-        QVariant command;
-        in >> command;
-        m_secondBlockSize = 0;
-
-        commandList.append(command);
-    }
-
-    foreach (const QVariant &command, commandList) {
-        dispatchCommand(command, SecondPuppetStream);
-    }
-}
-
-void NodeInstanceServerProxy::readThirdDataStream()
-{
-    QList<QVariant> commandList;
-
-    while (!m_thirdSocket->atEnd()) {
-        if (m_thirdSocket->bytesAvailable() < int(sizeof(quint32)))
-            break;
-
-        QDataStream in(m_thirdSocket.data());
-        in.setVersion(QDataStream::Qt_4_8);
-
-        if (m_thirdBlockSize == 0)
-            in >> m_thirdBlockSize;
-
-        if (m_thirdSocket->bytesAvailable() < m_thirdBlockSize)
-            break;
-
-        quint32 commandCounter;
-        in >> commandCounter;
-        bool commandLost = !((m_thirdLastReadCommandCounter == 0 && commandCounter == 0) || (m_thirdLastReadCommandCounter + 1 == commandCounter));
-        if (commandLost)
-            qDebug() << "server command lost: " << m_thirdLastReadCommandCounter <<  commandCounter;
-        m_thirdLastReadCommandCounter = commandCounter;
-
-
-        QVariant command;
-        in >> command;
-        m_thirdBlockSize = 0;
-
-        commandList.append(command);
-    }
-
-    foreach (const QVariant &command, commandList) {
-        dispatchCommand(command, ThirdPuppetStream);
-    }
-}
-
-void NodeInstanceServerProxy::printEditorProcessOutput()
-{
-    while (m_qmlPuppetEditorProcess && m_qmlPuppetEditorProcess->canReadLine()) {
-        QByteArray line = m_qmlPuppetEditorProcess->readLine();
-        line.chop(1);
-        qDebug().nospace() << "Editor Puppet: " << line;
-    }
-    qDebug() << "\n";
-}
-
-void NodeInstanceServerProxy::printPreviewProcessOutput()
-{
-    while (m_qmlPuppetPreviewProcess && m_qmlPuppetPreviewProcess->canReadLine()) {
-        QByteArray line = m_qmlPuppetPreviewProcess->readLine();
-        line.chop(1);
-        qDebug().nospace() << "Preview Puppet: " << line;
-    }
-    qDebug() << "\n";
-}
-
-void NodeInstanceServerProxy::printRenderProcessOutput()
-{
-    while (m_qmlPuppetRenderProcess && m_qmlPuppetRenderProcess->canReadLine()) {
-        QByteArray line = m_qmlPuppetRenderProcess->readLine();
-        line.chop(1);
-        qDebug().nospace() << "Render Puppet: " << line;
-    }
-
-    qDebug() << "\n";
+    m_connectionManager.writeCommand(command);
 }
 
 void NodeInstanceServerProxy::createInstances(const CreateInstancesCommand &command)

src/plugins/qmldesigner/designercore/instances/nodeinstanceserverproxy.h

@@ -48,21 +48,17 @@ namespace QmlDesigner {
 class NodeInstanceClientInterface;
 class NodeInstanceView;
 class NodeInstanceClientProxy;
+class ConnectionManagerInterface;
 
 class NodeInstanceServerProxy : public NodeInstanceServerInterface
 {
+    friend class BaseConnectionManager;
     Q_OBJECT
 
 public:
-    enum PuppetStreamType {
-        FirstPuppetStream,
-        SecondPuppetStream,
-        ThirdPuppetStream,
-    };
-
     explicit NodeInstanceServerProxy(NodeInstanceView *nodeInstanceView,
-                                     RunModus runModus,
-                                     ProjectExplorer::Target *target);
+                                     ProjectExplorer::Target *target,
+                                     ConnectionManagerInterface &connectionManager);
     ~NodeInstanceServerProxy() override;
     void createInstances(const CreateInstancesCommand &command) override;
     void changeFileUrl(const ChangeFileUrlCommand &command) override;
@@ -88,52 +84,22 @@ public:
     void changeLanguage(const ChangeLanguageCommand &command) override;
     void changePreviewImageSize(const ChangePreviewImageSizeCommand &command) override;
 
+    NodeInstanceView *nodeInstanceView() const { return m_nodeInstanceView; }
+
+    QString qrcMappingString() const;
+
 protected:
     void writeCommand(const QVariant &command);
-    void dispatchCommand(const QVariant &command, PuppetStreamType puppetStreamType);
+    void dispatchCommand(const QVariant &command);
     NodeInstanceClientInterface *nodeInstanceClient() const;
-    void puppetAlive(PuppetStreamType puppetStreamType);
-    QString qrcMappingString() const;
 
 signals:
     void processCrashed();
 
-private slots:
-    void processFinished();
-    void puppetTimeout(PuppetStreamType puppetStreamType);
-    void processFinished(int exitCode, QProcess::ExitStatus exitStatus);
-    void readFirstDataStream();
-    void readSecondDataStream();
-    void readThirdDataStream();
-
-    void printEditorProcessOutput();
-    void printPreviewProcessOutput();
-    void printRenderProcessOutput();
-    void showCannotConnectToPuppetWarningAndSwitchToEditMode();
 private:
-    QFile m_captureFileForTest;
-    QTimer m_firstTimer;
-    QTimer m_secondTimer;
-    QTimer m_thirdTimer;
-    QPointer<QLocalServer> m_localServer;
-    QPointer<QLocalSocket> m_firstSocket;
-    QPointer<QLocalSocket> m_secondSocket;
-    QPointer<QLocalSocket> m_thirdSocket;
-    QPointer<NodeInstanceView> m_nodeInstanceView;
-    QPointer<QProcess> m_qmlPuppetEditorProcess;
-    QPointer<QProcess> m_qmlPuppetPreviewProcess;
-    QPointer<QProcess> m_qmlPuppetRenderProcess;
-    quint32 m_firstBlockSize = 0;
-    quint32 m_secondBlockSize = 0;
-    quint32 m_thirdBlockSize = 0;
-    quint32 m_writeCommandCounter = 0;
-    quint32 m_firstLastReadCommandCounter = 0;
-    quint32 m_secondLastReadCommandCounter = 0;
-    quint32 m_thirdLastReadCommandCounter = 0;
-    RunModus m_runModus;
-    int m_synchronizeId = -1;
+    NodeInstanceView *m_nodeInstanceView{};
     QElapsedTimer m_benchmarkTimer;
-    bool m_destructing = false;
+    ConnectionManagerInterface &m_connectionManager;
 };
 
 } // namespace QmlDesigner

src/plugins/qmldesigner/designercore/instances/nodeinstanceview.cpp

@@ -27,6 +27,7 @@
 
 #include "abstractproperty.h"
 #include "bindingproperty.h"
+#include "captureddatacommand.h"
 #include "changeauxiliarycommand.h"
 #include "changebindingscommand.h"
 #include "changefileurlcommand.h"
@@ -41,6 +42,7 @@
 #include "clearscenecommand.h"
 #include "completecomponentcommand.h"
 #include "componentcompletedcommand.h"
+#include "connectionmanagerinterface.h"
 #include "createinstancescommand.h"
 #include "createscenecommand.h"
 #include "debugoutputcommand.h"
@@ -124,11 +126,10 @@ namespace QmlDesigner {
 
     \sa ~NodeInstanceView, setRenderOffScreen()
 */
-NodeInstanceView::NodeInstanceView(QObject *parent, NodeInstanceServerInterface::RunModus runModus)
-        : AbstractView(parent),
-          m_baseStatePreviewImage(QSize(100, 100), QImage::Format_ARGB32),
-          m_runModus(runModus),
-          m_restartProcessTimerId(0)
+NodeInstanceView::NodeInstanceView(ConnectionManagerInterface &connectionManager)
+    : m_connectionManager(connectionManager)
+    , m_baseStatePreviewImage(QSize(100, 100), QImage::Format_ARGB32)
+    , m_restartProcessTimerId(0)
 {
     m_baseStatePreviewImage.fill(0xFFFFFF);
 }
@@ -140,7 +141,6 @@ NodeInstanceView::NodeInstanceView(QObject *parent, NodeInstanceServerInterface:
 NodeInstanceView::~NodeInstanceView()
 {
     removeAllInstanceNodeRelationships();
-    delete nodeInstanceServer();
     m_currentTarget = nullptr;
 }
 
@@ -191,14 +191,16 @@ bool static parentTakesOverRendering(const ModelNode &modelNode)
 void NodeInstanceView::modelAttached(Model *model)
 {
     AbstractView::modelAttached(model);
-    auto server = new NodeInstanceServerProxy(this, m_runModus, m_currentTarget);
-    m_nodeInstanceServer = server;
+    m_nodeInstanceServer = createNodeInstanceServerProxy();
     m_lastCrashTime.start();
-    connect(server, &NodeInstanceServerProxy::processCrashed, this, &NodeInstanceView::handleCrash);
+    connect(m_nodeInstanceServer.get(),
+            &NodeInstanceServerProxy::processCrashed,
+            this,
+            &NodeInstanceView::handleCrash);
 
     if (!isSkippedRootNode(rootModelNode())) {
-        nodeInstanceServer()->createScene(createCreateSceneCommand());
-        nodeInstanceServer()->changeSelection(createChangeSelectionCommand(model->selectedNodes(this)));
+        m_nodeInstanceServer->createScene(createCreateSceneCommand());
+        m_nodeInstanceServer->changeSelection(createChangeSelectionCommand(model->selectedNodes(this)));
     }
 
     ModelNode stateNode = currentStateNode();
@@ -206,15 +208,14 @@ void NodeInstanceView::modelAttached(Model *model)
         NodeInstance newStateInstance = instanceForModelNode(stateNode);
         activateState(newStateInstance);
     }
-
 }
 
 void NodeInstanceView::modelAboutToBeDetached(Model * model)
 {
     removeAllInstanceNodeRelationships();
-    if (nodeInstanceServer()) {
-        nodeInstanceServer()->clearScene(createClearSceneCommand());
-        delete nodeInstanceServer();
+    if (m_nodeInstanceServer) {
+        m_nodeInstanceServer->clearScene(createClearSceneCommand());
+        m_nodeInstanceServer.reset();
     }
     m_statePreviewImage.clear();
     m_baseStatePreviewImage = QImage();
@@ -274,15 +275,18 @@ void NodeInstanceView::restartProcess()
         killTimer(m_restartProcessTimerId);
 
     if (model()) {
-        delete nodeInstanceServer();
+        m_nodeInstanceServer.reset();
+        m_nodeInstanceServer = createNodeInstanceServerProxy();
 
-        auto server = new NodeInstanceServerProxy(this, m_runModus, m_currentTarget);
-        m_nodeInstanceServer = server;
-        connect(server, &NodeInstanceServerProxy::processCrashed, this, &NodeInstanceView::handleCrash);
+        connect(m_nodeInstanceServer.get(),
+                &NodeInstanceServerProxy::processCrashed,
+                this,
+                &NodeInstanceView::handleCrash);
 
         if (!isSkippedRootNode(rootModelNode())) {
-            nodeInstanceServer()->createScene(createCreateSceneCommand());
-            nodeInstanceServer()->changeSelection(createChangeSelectionCommand(model()->selectedNodes(this)));
+            m_nodeInstanceServer->createScene(createCreateSceneCommand());
+            m_nodeInstanceServer->changeSelection(
+                createChangeSelectionCommand(model()->selectedNodes(this)));
         }
 
         ModelNode stateNode = currentStateNode();
@@ -313,17 +317,19 @@ void NodeInstanceView::nodeCreated(const ModelNode &createdNode)
     propertyList.append(createdNode.variantProperty("y"));
     updatePosition(propertyList);
 
-    nodeInstanceServer()->createInstances(createCreateInstancesCommand({instance}));
-    nodeInstanceServer()->changePropertyValues(createChangeValueCommand(createdNode.variantProperties()));
-    nodeInstanceServer()->completeComponent(createComponentCompleteCommand({instance}));
+    m_nodeInstanceServer->createInstances(createCreateInstancesCommand({instance}));
+    m_nodeInstanceServer->changePropertyValues(
+        createChangeValueCommand(createdNode.variantProperties()));
+    m_nodeInstanceServer->completeComponent(createComponentCompleteCommand({instance}));
 }
 
 /*! Notifies the view that \a removedNode will be removed.
 */
 void NodeInstanceView::nodeAboutToBeRemoved(const ModelNode &removedNode)
 {
-    nodeInstanceServer()->removeInstances(createRemoveInstancesCommand(removedNode));
-    nodeInstanceServer()->removeSharedMemory(createRemoveSharedMemoryCommand("Image", removedNode.internalId()));
+    m_nodeInstanceServer->removeInstances(createRemoveInstancesCommand(removedNode));
+    m_nodeInstanceServer->removeSharedMemory(
+        createRemoveSharedMemoryCommand("Image", removedNode.internalId()));
     removeInstanceAndSubInstances(removedNode);
 }
 
@@ -343,11 +349,10 @@ void NodeInstanceView::resetHorizontalAnchors(const ModelNode &modelNode)
         valueList.append(modelNode.variantProperty("width"));
 
     if (!valueList.isEmpty())
-        nodeInstanceServer()->changePropertyValues(createChangeValueCommand(valueList));
+        m_nodeInstanceServer->changePropertyValues(createChangeValueCommand(valueList));
 
     if (!bindingList.isEmpty())
-        nodeInstanceServer()->changePropertyBindings(createChangeBindingCommand(bindingList));
-
+        m_nodeInstanceServer->changePropertyBindings(createChangeBindingCommand(bindingList));
 }
 
 void NodeInstanceView::resetVerticalAnchors(const ModelNode &modelNode)
@@ -366,10 +371,10 @@ void NodeInstanceView::resetVerticalAnchors(const ModelNode &modelNode)
         valueList.append(modelNode.variantProperty("height"));
 
     if (!valueList.isEmpty())
-        nodeInstanceServer()->changePropertyValues(createChangeValueCommand(valueList));
+        m_nodeInstanceServer->changePropertyValues(createChangeValueCommand(valueList));
 
     if (!bindingList.isEmpty())
-        nodeInstanceServer()->changePropertyBindings(createChangeBindingCommand(bindingList));
+        m_nodeInstanceServer->changePropertyBindings(createChangeBindingCommand(bindingList));
 }
 
 void NodeInstanceView::propertiesAboutToBeRemoved(const QList<AbstractProperty>& propertyList)
@@ -388,10 +393,10 @@ void NodeInstanceView::propertiesAboutToBeRemoved(const QList<AbstractProperty>&
     RemoveInstancesCommand removeInstancesCommand = createRemoveInstancesCommand(nodeList);
 
     if (!removeInstancesCommand.instanceIds().isEmpty())
-        nodeInstanceServer()->removeInstances(removeInstancesCommand);
+        m_nodeInstanceServer->removeInstances(removeInstancesCommand);
 
-    nodeInstanceServer()->removeSharedMemory(createRemoveSharedMemoryCommand("Image", nodeList));
-    nodeInstanceServer()->removeProperties(createRemovePropertiesCommand(nonNodePropertyList));
+    m_nodeInstanceServer->removeSharedMemory(createRemoveSharedMemoryCommand("Image", nodeList));
+    m_nodeInstanceServer->removeProperties(createRemovePropertiesCommand(nonNodePropertyList));
 
     foreach (const AbstractProperty &property, propertyList) {
         const PropertyName &name = property.name();
@@ -445,7 +450,7 @@ void NodeInstanceView::nodeTypeChanged(const ModelNode &, const TypeName &, int,
 
 void NodeInstanceView::bindingPropertiesChanged(const QList<BindingProperty>& propertyList, PropertyChangeFlags /*propertyChange*/)
 {
-    nodeInstanceServer()->changePropertyBindings(createChangeBindingCommand(propertyList));
+    m_nodeInstanceServer->changePropertyBindings(createChangeBindingCommand(propertyList));
 }
 
 /*!
@@ -460,7 +465,7 @@ void NodeInstanceView::bindingPropertiesChanged(const QList<BindingProperty>& pr
 void NodeInstanceView::variantPropertiesChanged(const QList<VariantProperty>& propertyList, PropertyChangeFlags /*propertyChange*/)
 {
     updatePosition(propertyList);
-    nodeInstanceServer()->changePropertyValues(createChangeValueCommand(propertyList));
+    m_nodeInstanceServer->changePropertyValues(createChangeValueCommand(propertyList));
 }
 /*!
   Notifies the view that the property parent of the model node \a node has
@@ -476,20 +481,21 @@ void NodeInstanceView::nodeReparented(const ModelNode &node, const NodeAbstractP
 {
     if (!isSkippedNode(node)) {
         updateChildren(newPropertyParent);
-        nodeInstanceServer()->reparentInstances(createReparentInstancesCommand(node, newPropertyParent, oldPropertyParent));
+        m_nodeInstanceServer->reparentInstances(
+            createReparentInstancesCommand(node, newPropertyParent, oldPropertyParent));
     }
 }
 
 void NodeInstanceView::fileUrlChanged(const QUrl &/*oldUrl*/, const QUrl &newUrl)
 {
-    nodeInstanceServer()->changeFileUrl(createChangeFileUrlCommand(newUrl));
+    m_nodeInstanceServer->changeFileUrl(createChangeFileUrlCommand(newUrl));
 }
 
 void NodeInstanceView::nodeIdChanged(const ModelNode& node, const QString& /*newId*/, const QString& /*oldId*/)
 {
     if (hasInstanceForModelNode(node)) {
         NodeInstance instance = instanceForModelNode(node);
-        nodeInstanceServer()->changeIds(createChangeIdsCommand({instance}));
+        m_nodeInstanceServer->changeIds(createChangeIdsCommand({instance}));
     }
 }
 
@@ -512,7 +518,7 @@ void NodeInstanceView::nodeOrderChanged(const NodeListProperty & listProperty,
         }
     }
 
-    nodeInstanceServer()->reparentInstances(ReparentInstancesCommand(containerList));
+    m_nodeInstanceServer->reparentInstances(ReparentInstancesCommand(containerList));
 }
 
 void NodeInstanceView::importsChanged(const QList<Import> &/*addedImports*/, const QList<Import> &/*removedImports*/)
@@ -531,16 +537,16 @@ void NodeInstanceView::auxiliaryDataChanged(const ModelNode &node,
             if (value.isValid() || name == "invisible") {
                 PropertyValueContainer container(instance.instanceId(), name, value, TypeName());
                 ChangeAuxiliaryCommand changeAuxiliaryCommand({container});
-                nodeInstanceServer()->changeAuxiliaryValues(changeAuxiliaryCommand);
+                m_nodeInstanceServer->changeAuxiliaryValues(changeAuxiliaryCommand);
             } else {
                 if (node.hasVariantProperty(name)) {
                     PropertyValueContainer container(instance.instanceId(), name, node.variantProperty(name).value(), TypeName());
                     ChangeValuesCommand changeValueCommand({container});
-                    nodeInstanceServer()->changePropertyValues(changeValueCommand);
+                    m_nodeInstanceServer->changePropertyValues(changeValueCommand);
                 } else if (node.hasBindingProperty(name)) {
                     PropertyBindingContainer container(instance.instanceId(), name, node.bindingProperty(name).expression(), TypeName());
                     ChangeBindingsCommand changeValueCommand({container});
-                    nodeInstanceServer()->changePropertyBindings(changeValueCommand);
+                    m_nodeInstanceServer->changePropertyBindings(changeValueCommand);
                 }
             }
         }
@@ -548,9 +554,9 @@ void NodeInstanceView::auxiliaryDataChanged(const ModelNode &node,
         const QString languageAsString = value.toString();
         if (auto multiLanguageAspect = QmlProjectManager::QmlMultiLanguageAspect::current(m_currentTarget))
             multiLanguageAspect->setCurrentLocale(languageAsString);
-        nodeInstanceServer()->changeLanguage({languageAsString});
+        m_nodeInstanceServer->changeLanguage({languageAsString});
     } else if (node.isRootNode() && name == "previewSize@Internal") {
-        nodeInstanceServer()->changePreviewImageSize(value.toSize());
+        m_nodeInstanceServer->changePreviewImageSize(value.toSize());
     }
 }
 
@@ -565,10 +571,12 @@ void NodeInstanceView::nodeSourceChanged(const ModelNode &node, const QString &
      if (hasInstanceForModelNode(node)) {
          NodeInstance instance = instanceForModelNode(node);
          ChangeNodeSourceCommand changeNodeSourceCommand(instance.instanceId(), newNodeSource);
-         nodeInstanceServer()->changeNodeSource(changeNodeSourceCommand);
+         m_nodeInstanceServer->changeNodeSource(changeNodeSourceCommand);
      }
 }
 
+void NodeInstanceView::capturedData(const CapturedDataCommand &) {}
+
 void NodeInstanceView::currentStateChanged(const ModelNode &node)
 {
     NodeInstance newStateInstance = instanceForModelNode(node);
@@ -790,12 +798,6 @@ void NodeInstanceView::updatePosition(const QList<VariantProperty> &propertyList
         emitInstanceInformationsChange(informationChangeHash);
 }
 
-NodeInstanceServerInterface *NodeInstanceView::nodeInstanceServer() const
-{
-    return m_nodeInstanceServer.data();
-}
-
-
 NodeInstance NodeInstanceView::loadNode(const ModelNode &node)
 {
     NodeInstance instance(NodeInstance::create(node));
@@ -810,12 +812,12 @@ NodeInstance NodeInstanceView::loadNode(const ModelNode &node)
 
 void NodeInstanceView::activateState(const NodeInstance &instance)
 {
-    nodeInstanceServer()->changeState(ChangeStateCommand(instance.instanceId()));
+    m_nodeInstanceServer->changeState(ChangeStateCommand(instance.instanceId()));
 }
 
 void NodeInstanceView::activateBaseState()
 {
-    nodeInstanceServer()->changeState(ChangeStateCommand(-1));
+    m_nodeInstanceServer->changeState(ChangeStateCommand(-1));
 }
 
 void NodeInstanceView::removeRecursiveChildRelationship(const ModelNode &removedNode)
@@ -1248,7 +1250,8 @@ void NodeInstanceView::valuesChanged(const ValuesChangedCommand &command)
         }
     }
 
-    nodeInstanceServer()->removeSharedMemory(createRemoveSharedMemoryCommand(QStringLiteral("Values"), command.keyNumber()));
+    m_nodeInstanceServer->removeSharedMemory(
+        createRemoveSharedMemoryCommand(QStringLiteral("Values"), command.keyNumber()));
 
     if (!valuePropertyChangeList.isEmpty())
         emitInstancePropertyChange(valuePropertyChangeList);
@@ -1456,7 +1459,7 @@ void NodeInstanceView::sendToken(const QString &token, int number, const QVector
     foreach (const ModelNode &node, nodeVector)
         instanceIdVector.append(node.internalId());
 
-    nodeInstanceServer()->token(TokenCommand(token, number, instanceIdVector));
+    m_nodeInstanceServer->token(TokenCommand(token, number, instanceIdVector));
 }
 
 void NodeInstanceView::selectionChanged(const ChangeSelectionCommand &command)
@@ -1471,7 +1474,7 @@ void NodeInstanceView::selectionChanged(const ChangeSelectionCommand &command)
 void NodeInstanceView::handlePuppetToCreatorCommand(const PuppetToCreatorCommand &command)
 {
     if (command.type() == PuppetToCreatorCommand::Edit3DToolState) {
-        if (!m_nodeInstanceServer.isNull()) {
+        if (m_nodeInstanceServer) {
             auto data = qvariant_cast<QVariantList>(command.data());
             if (data.size() == 3) {
                 QString qmlId = data[0].toString();
@@ -1488,25 +1491,30 @@ void NodeInstanceView::handlePuppetToCreatorCommand(const PuppetToCreatorCommand
     }
 }
 
+std::unique_ptr<NodeInstanceServerProxy> NodeInstanceView::createNodeInstanceServerProxy()
+{
+    return std::make_unique<NodeInstanceServerProxy>(this, m_currentTarget, m_connectionManager);
+}
+
 void NodeInstanceView::selectedNodesChanged(const QList<ModelNode> &selectedNodeList,
                                             const QList<ModelNode> & /*lastSelectedNodeList*/)
 {
-    nodeInstanceServer()->changeSelection(createChangeSelectionCommand(selectedNodeList));
+    m_nodeInstanceServer->changeSelection(createChangeSelectionCommand(selectedNodeList));
 }
 
 void NodeInstanceView::sendInputEvent(QInputEvent *e) const
 {
-    nodeInstanceServer()->inputEvent(InputEventCommand(e));
+    m_nodeInstanceServer->inputEvent(InputEventCommand(e));
 }
 
 void NodeInstanceView::view3DAction(const View3DActionCommand &command)
 {
-    nodeInstanceServer()->view3DAction(command);
+    m_nodeInstanceServer->view3DAction(command);
 }
 
 void NodeInstanceView::edit3DViewResized(const QSize &size) const
 {
-    nodeInstanceServer()->update3DViewState(Update3dViewStateCommand(size));
+    m_nodeInstanceServer->update3DViewState(Update3dViewStateCommand(size));
 }
 
 void NodeInstanceView::timerEvent(QTimerEvent *event)

src/plugins/qmldesigner/designercore/instances/puppetcreator.cpp

@@ -176,39 +176,46 @@ PuppetCreator::PuppetCreator(ProjectExplorer::Target *target, const Model *model
 {
 }
 
-QProcess *PuppetCreator::createPuppetProcess(const QString &puppetMode,
-                                             const QString &socketToken,
-                                             QObject *handlerObject,
-                                             const char *outputSlot,
-                                             const char *finishSlot,
-                                             const QStringList &customOptions) const
+QProcessUniquePointer PuppetCreator::createPuppetProcess(
+    const QString &puppetMode,
+    const QString &socketToken,
+    QObject *handlerObject,
+    std::function<void()> processOutputCallback,
+    std::function<void(int, QProcess::ExitStatus)> processFinishCallback,
+    const QStringList &customOptions) const
 {
     return puppetProcess(qml2PuppetPath(m_availablePuppetType),
                          qmlPuppetDirectory(m_availablePuppetType),
                          puppetMode,
                          socketToken,
                          handlerObject,
-                         outputSlot,
-                         finishSlot,
+                         processOutputCallback,
+                         processFinishCallback,
                          customOptions);
 }
 
-
-QProcess *PuppetCreator::puppetProcess(const QString &puppetPath,
-                                       const QString &workingDirectory,
-                                       const QString &puppetMode,
-                                       const QString &socketToken,
-                                       QObject *handlerObject,
-                                       const char *outputSlot,
-                                       const char *finishSlot,
-                                       const QStringList &customOptions) const
+QProcessUniquePointer PuppetCreator::puppetProcess(
+    const QString &puppetPath,
+    const QString &workingDirectory,
+    const QString &puppetMode,
+    const QString &socketToken,
+    QObject *handlerObject,
+    std::function<void()> processOutputCallback,
+    std::function<void(int, QProcess::ExitStatus)> processFinishCallback,
+    const QStringList &customOptions) const
 {
-    auto puppetProcess = new QProcess;
+    QProcessUniquePointer puppetProcess{new QProcess};
     puppetProcess->setObjectName(puppetMode);
     puppetProcess->setProcessEnvironment(processEnvironment());
 
-    QObject::connect(QCoreApplication::instance(), &QCoreApplication::aboutToQuit, puppetProcess, &QProcess::kill);
-    QObject::connect(puppetProcess, SIGNAL(finished(int,QProcess::ExitStatus)), handlerObject, finishSlot);
+    QObject::connect(QCoreApplication::instance(),
+                     &QCoreApplication::aboutToQuit,
+                     puppetProcess.get(),
+                     &QProcess::kill);
+    QObject::connect(puppetProcess.get(),
+                     static_cast<void (QProcess::*)(int, QProcess::ExitStatus)>(&QProcess::finished),
+                     handlerObject,
+                     processFinishCallback);
 
 #ifndef QMLDESIGNER_TEST
     QString forwardOutput = m_designerSettings.value(DesignerSettingsKey::
@@ -218,7 +225,7 @@ QProcess *PuppetCreator::puppetProcess(const QString &puppetPath,
 #endif
     if (forwardOutput == puppetMode || forwardOutput == "all") {
         puppetProcess->setProcessChannelMode(QProcess::MergedChannels);
-        QObject::connect(puppetProcess, SIGNAL(readyRead()), handlerObject, outputSlot);
+        QObject::connect(puppetProcess.get(), &QProcess::readyRead, handlerObject, processOutputCallback);
     }
     puppetProcess->setWorkingDirectory(workingDirectory);
 

src/plugins/qmldesigner/designercore/instances/puppetcreator.h

@@ -25,6 +25,8 @@
 
 #pragma once
 
+#include "qprocessuniqueptr.h"
+
 #include <QString>
 #include <QProcessEnvironment>
 
@@ -53,12 +55,13 @@ public:
 
     void createQml2PuppetExecutableIfMissing();
 
-    QProcess *createPuppetProcess(const QString &puppetMode,
-                                  const QString &socketToken,
-                                  QObject *handlerObject,
-                                  const char *outputSlot,
-                                  const char *finishSlot,
-                                  const QStringList &customOptions = {}) const;
+    QProcessUniquePointer createPuppetProcess(
+        const QString &puppetMode,
+        const QString &socketToken,
+        QObject *handlerObject,
+        std::function<void()> processOutputCallback,
+        std::function<void(int, QProcess::ExitStatus)> processFinishCallback,
+        const QStringList &customOptions = {}) const;
 
     void setQrcMappingString(const QString qrcMapping);
 
@@ -82,14 +85,14 @@ protected:
 
     bool checkPuppetIsReady(const QString &puppetPath) const;
     bool qtIsSupported() const;
-    QProcess *puppetProcess(const QString &puppetPath,
-                            const QString &workingDirectory,
-                            const QString &puppetMode,
-                            const QString &socketToken,
-                            QObject *handlerObject,
-                            const char *outputSlot,
-                            const char *finishSlot,
-                            const QStringList &customOptions) const;
+    QProcessUniquePointer puppetProcess(const QString &puppetPath,
+                                        const QString &workingDirectory,
+                                        const QString &puppetMode,
+                                        const QString &socketToken,
+                                        QObject *handlerObject,
+                                        std::function<void()> processOutputCallback,
+                                        std::function<void(int, QProcess::ExitStatus)> processFinishCallback,
+                                        const QStringList &customOptions) const;
 
     QProcessEnvironment processEnvironment() const;
 

src/plugins/qmldesigner/designercore/instances/qprocessuniqueptr.h

@@ -0,0 +1,53 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#pragma once
+
+#include <QProcess>
+
+#include <memory>
+
+namespace QmlDesigner {
+
+class QProcessUniquePointerDeleter
+{
+public:
+    void operator()(QProcess *process)
+    {
+        process->disconnect();
+        QObject::connect(process,
+                         QOverload<int, QProcess::ExitStatus>::of(&QProcess::finished),
+                         process,
+                         &QProcess::deleteLater);
+
+        process->terminate();
+
+        process->deleteLater();
+    }
+};
+
+using QProcessUniquePointer = std::unique_ptr<QProcess, QProcessUniquePointerDeleter>;
+
+} // namespace QmlDesigner

src/plugins/qmldesigner/designercore/model/viewmanager.cpp

@@ -27,23 +27,24 @@
 
 #ifndef QMLDESIGNER_TEST
 
-#include <componentaction.h>
-#include <designmodewidget.h>
-#include <crumblebar.h>
 #include <abstractview.h>
-#include <rewriterview.h>
-#include <nodeinstanceview.h>
-#include <itemlibraryview.h>
-#include <navigatorview.h>
-#include <stateseditorview.h>
+#include <componentaction.h>
+#include <componentview.h>
+#include <crumblebar.h>
+#include <debugview.h>
+#include <designeractionmanagerview.h>
+#include <designmodewidget.h>
 #include <edit3dview.h>
 #include <formeditorview.h>
-#include <texteditorview.h>
-#include <propertyeditorview.h>
-#include <componentview.h>
-#include <debugview.h>
 #include <importmanagerview.h>
-#include <designeractionmanagerview.h>
+#include <interactiveconnectionmanager.h>
+#include <itemlibraryview.h>
+#include <navigatorview.h>
+#include <nodeinstanceview.h>
+#include <propertyeditorview.h>
+#include <rewriterview.h>
+#include <stateseditorview.h>
+#include <texteditorview.h>
 #include <qmldesignerplugin.h>
 
 #include <utils/algorithm.h>
@@ -59,10 +60,11 @@ static Q_LOGGING_CATEGORY(viewBenchmark, "qtc.viewmanager.attach", QtWarningMsg)
 class ViewManagerData
 {
 public:
+    InteractiveConnectionManager connectionManager;
     QmlModelState savedState;
     Internal::DebugView debugView;
     DesignerActionManagerView designerActionManagerView;
-    NodeInstanceView nodeInstanceView;
+    NodeInstanceView nodeInstanceView{connectionManager};
     ComponentView componentView;
     Edit3DView edit3DView;
     FormEditorView formEditorView;
@@ -81,7 +83,7 @@ static CrumbleBar *crumbleBar() {
 }
 
 ViewManager::ViewManager()
-    : d(new ViewManagerData)
+    : d(std::make_unique<ViewManagerData>())
 {
     d->formEditorView.setGotoErrorCallback([this](int line, int column) {
         d->textEditorView.gotoCursorPosition(line, column);
@@ -92,10 +94,9 @@ ViewManager::ViewManager()
 
 ViewManager::~ViewManager()
 {
-    foreach (const QPointer<AbstractView> &view, d->additionalViews)
+    for (const QPointer<AbstractView> &view : d->additionalViews)
         delete view.data();
 
-    delete d;
 }
 
 DesignDocument *ViewManager::currentDesignDocument() const

src/plugins/qmldesigner/qmldesignerplugin.qbs

@@ -321,6 +321,17 @@ Project {
                 "instances/puppetdialog.cpp",
                 "instances/puppetdialog.h",
                 "instances/puppetdialog.ui",
+                "instances/connectionmanagerinterface.cpp",
+                "instances/connectionmanagerinterface.h",
+                "instances/baseconnectionmanager.cpp ",
+                "instances/baseconnectionmanager.h",
+                "instances/connectionmanager.cpp",
+                "instances/connectionmanager.h",
+                "instances/capturingconnectionmanager.cpp",
+                "instances/capturingconnectionmanager.h",
+                "instances/interactiveconnectionmanager.cpp",
+                "instances/interactiveconnectionmanager.h",
+                "instances/qprocessuniqueptr.h",
                 "metainfo/itemlibraryinfo.cpp",
                 "metainfo/metainfo.cpp",
                 "metainfo/metainforeader.cpp",

src/tools/qml2puppet/CMakeLists.txt

@@ -52,6 +52,7 @@ extend_qtc_executable(qml2puppet
     inputeventcommand.cpp inputeventcommand.h
     view3dactioncommand.cpp view3dactioncommand.h
     valueschangedcommand.cpp
+    captureddatacommand.cpp captureddatacommand.h
 )
 
 extend_qtc_executable(qml2puppet
@@ -156,6 +157,7 @@ extend_qtc_executable(qml2puppet
     quick3dnodeinstance.cpp quick3dnodeinstance.h
     quickitemnodeinstance.cpp quickitemnodeinstance.h
     servernodeinstance.cpp servernodeinstance.h
+    qt5capturenodeinstanceserver.cpp qt5capturenodeinstanceserver.h
 )
 
 extend_qtc_executable(qml2puppet

src/tools/qml2puppet/qml2puppet.qbs

@@ -107,6 +107,8 @@ QtcTool {
             "commands/inputeventcommand.h",
             "commands/view3dactioncommand.cpp",
             "commands/view3dactioncommand.h",
+            "commands/captureddatacommand.cpp",
+            "commands/captureddatacommand.h",
             "container/addimportcontainer.cpp",
             "container/addimportcontainer.h",
             "container/idcontainer.cpp",
@@ -207,6 +209,8 @@ QtcTool {
             "instances/qt5testnodeinstanceserver.h",
             "instances/servernodeinstance.cpp",
             "instances/servernodeinstance.h",
+            "instances/qt5capturenodeinstanceserver.cpp",
+            "instances/qt5capturenodeinstanceserver.h",
             "editor3d/generalhelper.cpp",
             "editor3d/generalhelper.h",
             "editor3d/mousearea3d.cpp",

tests/auto/qml/qmldesigner/coretests/CMakeLists.txt

@@ -17,4 +17,5 @@ add_qtc_test(tst_qml_testcore
     ../testview.cpp ../testview.h
     testrewriterview.cpp testrewriterview.h
     tst_testcore.cpp tst_testcore.h
+    ../testconnectionmanager.cpp    ../testconnectionmanager.h
 )

tests/auto/qml/qmldesigner/coretests/coretests.pro

@@ -60,11 +60,13 @@ TEMPLATE = app
 SOURCES += \
     ../testview.cpp \
     testrewriterview.cpp \
-    tst_testcore.cpp
+    tst_testcore.cpp \
+    ../testconnectionmanager.cpp
 
 HEADERS += \
     ../testview.h \
     testrewriterview.h \
-    tst_testcore.h
+    tst_testcore.h \
+    ../testconnectionmanager.h
 
 RESOURCES += ../data/testfiles.qrc

tests/auto/qml/qmldesigner/coretests/tst_testcore.cpp

@@ -46,11 +46,12 @@
 #include <stylesheetmerger.h>
 #include <QDebug>
 
+#include "../testconnectionmanager.h"
 #include "../testview.h"
-#include <variantproperty.h>
 #include <abstractproperty.h>
 #include <bindingproperty.h>
 #include <nodeproperty.h>
+#include <variantproperty.h>
 
 #include <nodelistproperty.h>
 #include <nodeabstractproperty.h>
@@ -1999,8 +2000,9 @@ void tst_TestCore::testModelRemoveNode()
     QVERIFY(view.data());
     model->attachView(view.data());
 
-    NodeInstanceView *nodeInstanceView = new NodeInstanceView(model.data(), NodeInstanceServerInterface::TestModus);
-    model->attachView(nodeInstanceView);
+    TestConnectionManager connectionManager;
+    NodeInstanceView nodeInstanceView{connectionManager};
+    model->attachView(&nodeInstanceView);
 
     QCOMPARE(view->rootModelNode().directSubModelNodes().count(), 0);
 
@@ -2051,7 +2053,7 @@ void tst_TestCore::testModelRemoveNode()
     childNode = view->createModelNode("QtQuick.Item", 1, 1);
     childNode.destroy();
 
-    model->detachView(nodeInstanceView);
+    model->detachView(&nodeInstanceView);
 }
 
 void tst_TestCore::reparentingNode()
@@ -6140,17 +6142,21 @@ void tst_TestCore::testInstancesAttachToExistingModel()
 
     // Attach NodeInstanceView
 
-    QScopedPointer<NodeInstanceView> instanceView(new NodeInstanceView(0, NodeInstanceServerInterface::TestModus));
-    QVERIFY(instanceView.data());
-    model->attachView(instanceView.data());
+    TestConnectionManager connectionManager;
 
-    NodeInstance rootInstance = instanceView->instanceForModelNode(rootNode);
-    NodeInstance rectangleInstance = instanceView->instanceForModelNode(rectangleNode);
+    NodeInstanceView instanceView{connectionManager};
+
+    model->attachView(&instanceView);
+
+    NodeInstance rootInstance = instanceView.instanceForModelNode(rootNode);
+    NodeInstance rectangleInstance = instanceView.instanceForModelNode(rectangleNode);
     QVERIFY(rootInstance.isValid());
     QVERIFY(rectangleInstance.isValid());
     QCOMPARE(QVariant(100), rectangleInstance.property("width"));
     QVERIFY(rootInstance.instanceId() >= 0);
     QVERIFY(rectangleInstance.instanceId() >= 0);
+
+    model->detachView(&instanceView);
 }
 
 void tst_TestCore::testQmlModelAddMultipleStates()

tests/auto/qml/qmldesigner/testconnectionmanager.cpp

@@ -0,0 +1,72 @@
+/****************************************************************************
+**
+** Copyright (C) 2020 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#include "testconnectionmanager.h"
+#include "synchronizecommand.h"
+
+#include <QLocalSocket>
+
+namespace QmlDesigner {
+
+TestConnectionManager::TestConnectionManager()
+{
+    m_connections.emplace_back("Editor", "editormode");
+}
+
+void TestConnectionManager::writeCommand(const QVariant &command)
+{
+    TestConnectionManager::writeCommand(command);
+
+    m_writeCommandCounter++;
+
+    static int synchronizeId = 0;
+    synchronizeId++;
+    SynchronizeCommand synchronizeCommand(synchronizeId);
+
+    QLocalSocket *socket = m_connections.front().socket.get();
+
+    writeCommandToIODevice(QVariant::fromValue(synchronizeCommand), socket, m_writeCommandCounter);
+    m_writeCommandCounter++;
+
+    while (socket->waitForReadyRead(100)) {
+        readDataStream(m_connections.front());
+        if (m_synchronizeId == synchronizeId)
+            return;
+    }
+}
+
+void TestConnectionManager::dispatchCommand(const QVariant &command, Connection &connection)
+{
+    static const int synchronizeCommandType = QMetaType::type("SynchronizeCommand");
+
+    if (command.userType() == synchronizeCommandType) {
+        SynchronizeCommand synchronizeCommand = command.value<SynchronizeCommand>();
+        m_synchronizeId = synchronizeCommand.synchronizeId();
+    } else {
+        ConnectionManager::dispatchCommand(command, connection);
+    }
+}
+
+} // namespace QmlDesigner

tests/auto/qml/qmldesigner/testconnectionmanager.h

@@ -0,0 +1,56 @@
+/****************************************************************************
+**
+** Copyright (C) 2020 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#pragma once
+
+#include <connectionmanager.h>
+
+#include <QFile>
+#include <QPointer>
+#include <QProcess>
+#include <QTimer>
+
+QT_BEGIN_NAMESPACE
+class QLocalServer;
+class QLocalSocket;
+QT_END_NAMESPACE
+
+namespace QmlDesigner {
+
+class TestConnectionManager final : public ConnectionManager
+{
+public:
+    TestConnectionManager();
+
+    void writeCommand(const QVariant &command) override;
+
+protected:
+    void dispatchCommand(const QVariant &command, Connection &connection) override;
+
+private:
+    int m_synchronizeId = -1;
+};
+
+} // namespace QmlDesigner