nodeinstanceserverproxy.cpp 14 KB
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/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** No Commercial Usage
**
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
**
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights.  These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**************************************************************************/

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#include "nodeinstanceserverproxy.h"

#include <QLocalServer>
#include <QLocalSocket>
#include <QProcess>
#include <QCoreApplication>
#include <QUuid>

#include "propertyabstractcontainer.h"
#include "propertyvaluecontainer.h"
#include "propertybindingcontainer.h"
#include "instancecontainer.h"
#include "createinstancescommand.h"
#include "createscenecommand.h"
#include "changevaluescommand.h"
#include "changebindingscommand.h"
#include "changefileurlcommand.h"
#include "removeinstancescommand.h"
#include "clearscenecommand.h"
#include "removepropertiescommand.h"
#include "reparentinstancescommand.h"
#include "changeidscommand.h"
#include "changestatecommand.h"
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#include "addimportcommand.h"
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#include "completecomponentcommand.h"
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#include "informationchangedcommand.h"
#include "pixmapchangedcommand.h"
#include "valueschangedcommand.h"
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#include "childrenchangedcommand.h"
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#include "imagecontainer.h"
#include "statepreviewimagechangedcommand.h"
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#include "componentcompletedcommand.h"
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#include "synchronizecommand.h"

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#include "nodeinstanceview.h"
#include "nodeinstanceclientproxy.h"

namespace QmlDesigner {

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NodeInstanceServerProxy::NodeInstanceServerProxy(NodeInstanceView *nodeInstanceView, RunModus runModus)
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    : NodeInstanceServerInterface(nodeInstanceView),
      m_localServer(new QLocalServer(this)),
      m_nodeInstanceView(nodeInstanceView),
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      m_firstBlockSize(0),
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      m_secondBlockSize(0),
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      m_thirdBlockSize(0),
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      m_runModus(runModus),
      m_synchronizeId(-1)
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{
   QString socketToken(QUuid::createUuid().toString());

   m_localServer->listen(socketToken);
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   m_localServer->setMaxPendingConnections(3);
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   QString applicationPath =  QCoreApplication::applicationDirPath();
   if (runModus == TestModus)
       applicationPath += "/../../../../../bin";
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#ifdef Q_OS_MACX
   applicationPath += "/qmlpuppet.app/Contents/MacOS";
#endif
   applicationPath += "/qmlpuppet";

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   m_qmlPuppetEditorProcess = new QProcess;
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   connect(m_qmlPuppetEditorProcess.data(), SIGNAL(finished(int,QProcess::ExitStatus)), this, SLOT(processFinished(int,QProcess::ExitStatus)));
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   connect(QCoreApplication::instance(), SIGNAL(aboutToQuit()), m_qmlPuppetEditorProcess.data(), SLOT(kill()));
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   bool fowardQmlpuppetOutput = !qgetenv("FORWARD_QMLPUPPET_OUTPUT").isEmpty();
   if (fowardQmlpuppetOutput)
       m_qmlPuppetEditorProcess->setProcessChannelMode(QProcess::ForwardedChannels);
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   m_qmlPuppetEditorProcess->start(applicationPath, QStringList() << socketToken << "editormode" << "-graphicssystem raster");
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   if (runModus == NormalModus) {
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       m_qmlPuppetPreviewProcess = new QProcess;
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       connect(m_qmlPuppetPreviewProcess.data(), SIGNAL(finished(int,QProcess::ExitStatus)), this, SLOT(processFinished(int,QProcess::ExitStatus)));
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       connect(QCoreApplication::instance(), SIGNAL(aboutToQuit()), m_qmlPuppetPreviewProcess.data(), SLOT(kill()));
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       if (fowardQmlpuppetOutput)
           m_qmlPuppetPreviewProcess->setProcessChannelMode(QProcess::ForwardedChannels);
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       m_qmlPuppetPreviewProcess->start(applicationPath, QStringList() << socketToken << "previewmode" << "-graphicssystem raster");
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       m_qmlPuppetRenderProcess = new QProcess;
       connect(m_qmlPuppetRenderProcess.data(), SIGNAL(finished(int,QProcess::ExitStatus)), this, SLOT(processFinished(int,QProcess::ExitStatus)));
       connect(QCoreApplication::instance(), SIGNAL(aboutToQuit()), m_qmlPuppetRenderProcess.data(), SLOT(kill()));
       if (fowardQmlpuppetOutput)
           m_qmlPuppetRenderProcess->setProcessChannelMode(QProcess::ForwardedChannels);
       m_qmlPuppetRenderProcess->start(applicationPath, QStringList() << socketToken << "rendermode" << "-graphicssystem raster");

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   }
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   connect(QCoreApplication::instance(), SIGNAL(aboutToQuit()), this, SLOT(deleteLater()));
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   m_qmlPuppetEditorProcess->waitForStarted();
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   connect(m_qmlPuppetEditorProcess.data(), SIGNAL(finished(int)), m_qmlPuppetEditorProcess.data(),SLOT(deleteLater()));

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   if (runModus == NormalModus) {
       m_qmlPuppetPreviewProcess->waitForStarted();
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       connect(m_qmlPuppetPreviewProcess.data(), SIGNAL(finished(int)), m_qmlPuppetPreviewProcess.data(),SLOT(deleteLater()));
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       m_qmlPuppetRenderProcess->waitForStarted();
       connect(m_qmlPuppetRenderProcess.data(), SIGNAL(finished(int)), m_qmlPuppetRenderProcess.data(),SLOT(deleteLater()));
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   }
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   if (!m_localServer->hasPendingConnections())
       m_localServer->waitForNewConnection(-1);

   m_firstSocket = m_localServer->nextPendingConnection();
   connect(m_firstSocket.data(), SIGNAL(readyRead()), this, SLOT(readFirstDataStream()));
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   if (runModus == NormalModus) {
       if (!m_localServer->hasPendingConnections())
           m_localServer->waitForNewConnection(-1);
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       m_secondSocket = m_localServer->nextPendingConnection();
       connect(m_secondSocket.data(), SIGNAL(readyRead()), this, SLOT(readSecondDataStream()));
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       if (!m_localServer->hasPendingConnections())
           m_localServer->waitForNewConnection(-1);

       m_thirdSocket = m_localServer->nextPendingConnection();
       connect(m_thirdSocket.data(), SIGNAL(readyRead()), this, SLOT(readThirdDataStream()));

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   }
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   m_localServer->close();
}

NodeInstanceServerProxy::~NodeInstanceServerProxy()
{
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    disconnect(this, SLOT(processFinished(int,QProcess::ExitStatus)));

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    if (m_firstSocket)
        m_firstSocket->close();

    if (m_secondSocket)
        m_secondSocket->close();

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    if(m_thirdSocket)
        m_thirdSocket->close();

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    if (m_qmlPuppetEditorProcess)
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        m_qmlPuppetEditorProcess->kill();

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    if (m_qmlPuppetPreviewProcess)
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        m_qmlPuppetPreviewProcess->kill();
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    if (m_qmlPuppetRenderProcess)
        m_qmlPuppetRenderProcess->kill();
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}

void NodeInstanceServerProxy::dispatchCommand(const QVariant &command)
{
    static const int informationChangedCommandType = QMetaType::type("InformationChangedCommand");
    static const int valuesChangedCommandType = QMetaType::type("ValuesChangedCommand");
    static const int pixmapChangedCommandType = QMetaType::type("PixmapChangedCommand");
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    static const int childrenChangedCommandType = QMetaType::type("ChildrenChangedCommand");
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    static const int statePreviewImageChangedCommandType = QMetaType::type("StatePreviewImageChangedCommand");
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    static const int componentCompletedCommandType = QMetaType::type("ComponentCompletedCommand");
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    static const int synchronizeCommandType = QMetaType::type("SynchronizeCommand");
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    if (command.userType() ==  informationChangedCommandType)
        nodeInstanceClient()->informationChanged(command.value<InformationChangedCommand>());
    else if (command.userType() ==  valuesChangedCommandType)
        nodeInstanceClient()->valuesChanged(command.value<ValuesChangedCommand>());
    else if (command.userType() ==  pixmapChangedCommandType)
        nodeInstanceClient()->pixmapChanged(command.value<PixmapChangedCommand>());
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    else if (command.userType() == childrenChangedCommandType)
        nodeInstanceClient()->childrenChanged(command.value<ChildrenChangedCommand>());
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    else if (command.userType() == statePreviewImageChangedCommandType)
        nodeInstanceClient()->statePreviewImagesChanged(command.value<StatePreviewImageChangedCommand>());
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    else if (command.userType() == componentCompletedCommandType)
        nodeInstanceClient()->componentCompleted(command.value<ComponentCompletedCommand>());
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    else if (command.userType() == synchronizeCommandType) {
        SynchronizeCommand synchronizeCommand = command.value<SynchronizeCommand>();
        m_synchronizeId = synchronizeCommand.synchronizeId();
    }  else
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        Q_ASSERT(false);
}

NodeInstanceClientInterface *NodeInstanceServerProxy::nodeInstanceClient() const
{
    return m_nodeInstanceView.data();
}

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static void writeCommandToSocket(const QVariant &command, QLocalSocket *socket)
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{
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    if(socket) {
        QByteArray block;
        QDataStream out(&block, QIODevice::WriteOnly);
        out << quint32(0);
        out << command;
        out.device()->seek(0);
        out << quint32(block.size() - sizeof(quint32));

        socket->write(block);
    }
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}

void NodeInstanceServerProxy::writeCommand(const QVariant &command)
{
    writeCommandToSocket(command, m_firstSocket.data());
    writeCommandToSocket(command, m_secondSocket.data());
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    writeCommandToSocket(command, m_thirdSocket.data());
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    if (m_runModus == TestModus) {
        static int synchronizeId = 0;
        synchronizeId++;
        SynchronizeCommand synchronizeCommand(synchronizeId);

        writeCommandToSocket(QVariant::fromValue(synchronizeCommand), m_firstSocket.data());

        while(m_firstSocket->waitForReadyRead()) {
                readFirstDataStream();
                if (m_synchronizeId == synchronizeId)
                    return;
        }
    }
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}

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void NodeInstanceServerProxy::processFinished(int /*exitCode*/, QProcess::ExitStatus exitStatus)
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{
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    if (m_firstSocket)
        m_firstSocket->close();
    if (m_secondSocket)
        m_secondSocket->close();
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    if (m_thirdSocket)
        m_thirdSocket->close();

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    if (exitStatus == QProcess::CrashExit)
        emit processCrashed();
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}

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void NodeInstanceServerProxy::readFirstDataStream()
{
    QList<QVariant> commandList;

    while (!m_firstSocket->atEnd()) {
        if (m_firstSocket->bytesAvailable() < int(sizeof(quint32)))
            break;

        QDataStream in(m_firstSocket.data());

        if (m_firstBlockSize == 0) {
            in >> m_firstBlockSize;
        }

        if (m_firstSocket->bytesAvailable() < m_firstBlockSize)
            break;

        QVariant command;
        in >> command;
        m_firstBlockSize = 0;

        commandList.append(command);
    }

    foreach (const QVariant &command, commandList) {
        dispatchCommand(command);
    }
}

void NodeInstanceServerProxy::readSecondDataStream()
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{
    QList<QVariant> commandList;

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    while (!m_secondSocket->atEnd()) {
        if (m_secondSocket->bytesAvailable() < int(sizeof(quint32)))
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            break;

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        QDataStream in(m_secondSocket.data());
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        if (m_secondBlockSize == 0) {
            in >> m_secondBlockSize;
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        }

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        if (m_secondSocket->bytesAvailable() < m_secondBlockSize)
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            break;

        QVariant command;
        in >> command;
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        m_secondBlockSize = 0;
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        commandList.append(command);
    }

    foreach (const QVariant &command, commandList) {
        dispatchCommand(command);
    }
}

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void NodeInstanceServerProxy::readThirdDataStream()
{
    QList<QVariant> commandList;

    while (!m_thirdSocket->atEnd()) {
        if (m_thirdSocket->bytesAvailable() < int(sizeof(quint32)))
            break;

        QDataStream in(m_thirdSocket.data());

        if (m_thirdBlockSize == 0) {
            in >> m_thirdBlockSize;
        }

        if (m_thirdSocket->bytesAvailable() < m_thirdBlockSize)
            break;

        QVariant command;
        in >> command;
        m_thirdBlockSize = 0;

        commandList.append(command);
    }

    foreach (const QVariant &command, commandList) {
        dispatchCommand(command);
    }
}


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void NodeInstanceServerProxy::createInstances(const CreateInstancesCommand &command)
{
    writeCommand(QVariant::fromValue(command));
}

void NodeInstanceServerProxy::changeFileUrl(const ChangeFileUrlCommand &command)
{
    writeCommand(QVariant::fromValue(command));
}

void NodeInstanceServerProxy::createScene(const CreateSceneCommand &command)
{
    writeCommand(QVariant::fromValue(command));
}

void NodeInstanceServerProxy::clearScene(const ClearSceneCommand &command)
{
    writeCommand(QVariant::fromValue(command));
}

void NodeInstanceServerProxy::removeInstances(const RemoveInstancesCommand &command)
{
    writeCommand(QVariant::fromValue(command));
}

void NodeInstanceServerProxy::removeProperties(const RemovePropertiesCommand &command)
{
    writeCommand(QVariant::fromValue(command));
}

void NodeInstanceServerProxy::changePropertyBindings(const ChangeBindingsCommand &command)
{
    writeCommand(QVariant::fromValue(command));
}

void NodeInstanceServerProxy::changePropertyValues(const ChangeValuesCommand &command)
{
    writeCommand(QVariant::fromValue(command));
}

void NodeInstanceServerProxy::reparentInstances(const ReparentInstancesCommand &command)
{
    writeCommand(QVariant::fromValue(command));
}

void NodeInstanceServerProxy::changeIds(const ChangeIdsCommand &command)
{
    writeCommand(QVariant::fromValue(command));
}

void NodeInstanceServerProxy::changeState(const ChangeStateCommand &command)
{
    writeCommand(QVariant::fromValue(command));
}

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void NodeInstanceServerProxy::addImport(const AddImportCommand &command)
{
    writeCommand(QVariant::fromValue(command));
}
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void NodeInstanceServerProxy::completeComponent(const CompleteComponentCommand &command)
{
    writeCommand(QVariant::fromValue(command));
}
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} // namespace QmlDesigner