Merge branch 'master' of scm.dev.nokia.troll.no:qt/qt-qml into master-integration

* 'master' of scm.dev.nokia.troll.no:qt/qt-qml: (3342 commits)
  Add getter functions to QAbstractDynamicMetaObject and QmlOpenMetaObjectType
  Changed define name to reflect change in Creator.
  re-enable QT_USE_FAST_CONCATENATION
  XMLHttpRequest collection bug
  The virtual keyboard is now working for TextEdit and TextInput components.
  Fix viewport size update.
  Make transformOrigin Center by default
  Better documentation of "model" and "modelData" in delegates.
  clip if tile mode is 'PreserveAspectCrop' and 'clip' property is true.
  Fix test.
  Allow objects to be shared between QmlEngines
  Use QUrl::fromLocalFile() instead of "file://" (i.e. only 2 slashes).
  Fix item removal.
  Fixes: make qt-creator compile
  Make atBeginning/viewArea calculations account for min extent.
  Fix private header include.
  Fix autotest.
  Fix test.
  Fix test.
  Remove hacky fix (breaks autotest).
  ...

1 files changed, 1031 insertions, 0 deletions

diff --git a/src/declarative/qml/qmlworkerscript.cpp b/src/declarative/qml/qmlworkerscript.cpp
new file mode 100644
index 0000000..f58aa8b
--- /dev/null
+++ b/src/declarative/qml/qmlworkerscript.cpp
@@ -0,0 +1,1031 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtDeclarative module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qmlworkerscript_p.h"
+
+#include "qmlengine_p.h"
+
+#include <QtCore/qcoreevent.h>
+#include <QtCore/qcoreapplication.h>
+#include <QtCore/qdebug.h>
+#include <QtScript/qscriptengine.h>
+#include <QtCore/qmutex.h>
+#include <QtCore/qwaitcondition.h>
+#include <QtScript/qscriptvalueiterator.h>
+#include <QtCore/qfile.h>
+#include <QtNetwork/qnetworkaccessmanager.h>
+#include <QtDeclarative/qmlinfo.h>
+
+QT_BEGIN_NAMESPACE
+
+class WorkerDataEvent : public QEvent
+{
+public:
+    enum Type { WorkerData = QEvent::User };
+
+    WorkerDataEvent(int workerId, const QVariant &data);
+    virtual ~WorkerDataEvent();
+
+    int workerId() const;
+    QVariant data() const;
+
+private:
+    int m_id;
+    QVariant m_data;
+};
+
+class WorkerLoadEvent : public QEvent
+{
+public:
+    enum Type { WorkerLoad = WorkerDataEvent::WorkerData + 1 };
+
+    WorkerLoadEvent(int workerId, const QUrl &url);
+
+    int workerId() const;
+    QUrl url() const;
+
+private:
+    int m_id;
+    QUrl m_url;
+};
+
+class WorkerRemoveEvent : public QEvent
+{
+public:
+    enum Type { WorkerRemove = WorkerLoadEvent::WorkerLoad + 1 };
+
+    WorkerRemoveEvent(int workerId);
+
+    int workerId() const;
+
+private:
+    int m_id;
+};
+
+class QmlWorkerScriptEnginePrivate : public QObject
+{
+public:
+    QmlWorkerScriptEnginePrivate();
+
+    struct ScriptEngine : public QmlScriptEngine 
+    {
+        ScriptEngine(QmlWorkerScriptEnginePrivate *parent) : QmlScriptEngine(0), p(parent) {}
+        ~ScriptEngine() { delete manager; };
+        QmlWorkerScriptEnginePrivate *p;
+        QNetworkAccessManager *manager;
+
+        virtual QNetworkAccessManager *networkAccessManager() { 
+            if (!manager) manager = new QNetworkAccessManager;
+            return manager;
+        }
+    };
+    ScriptEngine *workerEngine;
+    static QmlWorkerScriptEnginePrivate *get(QScriptEngine *e) {
+        return static_cast<ScriptEngine *>(e)->p;
+    }
+
+    QMutex m_lock;
+    QWaitCondition m_wait;
+
+    struct WorkerScript {
+        WorkerScript();
+
+        int id;
+        bool initialized;
+        QmlWorkerScript *owner;
+        QScriptValue object;
+
+        QScriptValue callback;
+    };
+
+    QNetworkAccessManager *networkAccessManager;
+    QNetworkAccessManager *getNetworkAccessManager();
+
+    QHash<int, WorkerScript *> workers;
+    QScriptValue getWorker(int);
+
+    int m_nextId;
+
+    static QVariant scriptValueToVariant(const QScriptValue &);
+    static QScriptValue variantToScriptValue(const QVariant &, QScriptEngine *);
+
+    static QScriptValue onMessage(QScriptContext *ctxt, QScriptEngine *engine);
+    static QScriptValue sendMessage(QScriptContext *ctxt, QScriptEngine *engine);
+
+protected:
+    virtual bool event(QEvent *);
+
+private:
+    void processMessage(int, const QVariant &);
+    void processLoad(int, const QUrl &);
+};
+
+// Currently this will leak as no-one releases it in the worker thread 
+class QmlWorkerListModelAgent : public QObject
+{
+    Q_OBJECT
+    Q_PROPERTY(int count READ count);
+
+public:
+    QmlWorkerListModelAgent(QmlWorkerListModel *);
+    ~QmlWorkerListModelAgent();
+
+    void addref();
+    void release();
+
+    int count() const;
+
+    Q_INVOKABLE void clear();
+    Q_INVOKABLE void remove(int index);
+    Q_INVOKABLE void append(const QScriptValue &);
+    Q_INVOKABLE void insert(int index, const QScriptValue&);
+    Q_INVOKABLE QScriptValue get(int index) const;
+    Q_INVOKABLE void set(int index, const QScriptValue &);
+    Q_INVOKABLE void sync();
+
+    struct VariantRef
+    {
+        VariantRef() : a(0) {}
+        VariantRef(const VariantRef &r) : a(r.a) { if (a) a->addref(); }
+        VariantRef(QmlWorkerListModelAgent *_a) : a(_a) { if (a) a->addref(); }
+        ~VariantRef() { if (a) a->release(); }
+
+        VariantRef &operator=(const VariantRef &o) { 
+            if (o.a) o.a->addref(); 
+            if (a) a->release(); a = o.a; 
+            return *this; 
+        }
+
+        QmlWorkerListModelAgent *a;
+    };
+protected:
+    virtual bool event(QEvent *);
+
+private:
+    friend class QmlWorkerScriptEnginePrivate;
+    friend class QmlWorkerListModel;
+    QScriptEngine *m_engine;
+
+    struct Change {
+        enum { Inserted, Removed, Moved, Changed } type;
+        int index; // Inserted/Removed/Moved/Changed
+        int count; // Inserted/Removed/Moved/Changed
+        int to;    // Moved
+    };
+
+    struct Data {
+        QHash<int, QString> roles;
+        QHash<QString, int> strings;
+        QList<QHash<int, QVariant> > values;
+        QList<Change> changes;
+
+        void clearChange();
+        void insertChange(int index, int count);
+        void removeChange(int index, int count);
+        void changedChange(int index, int count);
+    };
+    Data data;
+
+    struct Sync : public QEvent {
+        Sync() : QEvent(QEvent::User) {}
+        Data data;
+    };
+
+    QAtomicInt m_ref;
+    QmlWorkerListModel *m_model;
+};
+Q_DECLARE_METATYPE(QmlWorkerListModelAgent::VariantRef);
+
+QmlWorkerScriptEnginePrivate::QmlWorkerScriptEnginePrivate()
+: workerEngine(0), networkAccessManager(0), m_nextId(0)
+{
+}
+
+QScriptValue QmlWorkerScriptEnginePrivate::onMessage(QScriptContext *ctxt, QScriptEngine *engine)
+{
+    QmlWorkerScriptEnginePrivate *p = QmlWorkerScriptEnginePrivate::get(engine);
+
+    int id = ctxt->thisObject().data().toVariant().toInt();
+
+    WorkerScript *script = p->workers.value(id);
+    if (!script)
+        return engine->undefinedValue();
+
+    if (ctxt->argumentCount() >= 1) 
+        script->callback = ctxt->argument(0);
+
+    return script->callback;
+}
+
+QScriptValue QmlWorkerScriptEnginePrivate::sendMessage(QScriptContext *ctxt, QScriptEngine *engine)
+{
+    if (!ctxt->argumentCount())
+        return engine->undefinedValue();
+
+    QmlWorkerScriptEnginePrivate *p = QmlWorkerScriptEnginePrivate::get(engine);
+
+    int id = ctxt->thisObject().data().toVariant().toInt();
+
+    WorkerScript *script = p->workers.value(id);
+    if (!script) 
+        return engine->undefinedValue();
+
+    p->m_lock.lock();
+    if (script->owner) 
+        QCoreApplication::postEvent(script->owner, 
+                                    new WorkerDataEvent(0, scriptValueToVariant(ctxt->argument(0))));
+    p->m_lock.unlock();
+
+    return engine->undefinedValue();
+}
+
+QScriptValue QmlWorkerScriptEnginePrivate::getWorker(int id)
+{
+    QHash<int, WorkerScript *>::ConstIterator iter = workers.find(id);
+
+    if (iter == workers.end())
+        return workerEngine->nullValue();
+
+    WorkerScript *script = *iter;
+    if (!script->initialized) {
+
+        script->initialized = true;
+        script->object = workerEngine->newObject();
+
+        QScriptValue api = workerEngine->newObject();
+        api.setData(script->id);
+
+        api.setProperty(QLatin1String("onMessage"), workerEngine->newFunction(onMessage), 
+                        QScriptValue::PropertyGetter | QScriptValue::PropertySetter);
+        api.setProperty(QLatin1String("sendMessage"), workerEngine->newFunction(sendMessage));
+
+        script->object.setProperty(QLatin1String("WorkerScript"), api);
+    }
+
+    return script->object;
+}
+
+bool QmlWorkerScriptEnginePrivate::event(QEvent *event)
+{
+    if (event->type() == (QEvent::Type)WorkerDataEvent::WorkerData) {
+        WorkerDataEvent *workerEvent = static_cast<WorkerDataEvent *>(event);
+        processMessage(workerEvent->workerId(), workerEvent->data());
+        return true;
+    } else if (event->type() == (QEvent::Type)WorkerLoadEvent::WorkerLoad) {
+        WorkerLoadEvent *workerEvent = static_cast<WorkerLoadEvent *>(event);
+        processLoad(workerEvent->workerId(), workerEvent->url());
+        return true;
+    } else {
+        return QObject::event(event);
+    }
+}
+
+void QmlWorkerScriptEnginePrivate::processMessage(int id, const QVariant &data)
+{
+    WorkerScript *script = workers.value(id);
+    if (!script)
+        return;
+
+    if (script->callback.isFunction()) {
+        QScriptValue args = workerEngine->newArray(1);
+        args.setProperty(0, variantToScriptValue(data, workerEngine));
+
+        script->callback.call(script->object, args);
+    }
+}
+
+void QmlWorkerScriptEnginePrivate::processLoad(int id, const QUrl &url)
+{
+    if (url.isRelative() || url.scheme() != QLatin1String("file"))
+        return;
+
+    QString fileName = url.toLocalFile();
+
+    QFile f(fileName);
+    if (f.open(QIODevice::ReadOnly)) {
+        QByteArray data = f.readAll();
+        QString script = QString::fromUtf8(data);
+
+        QScriptValue activation = getWorker(id);
+
+        QScriptContext *ctxt = workerEngine->pushContext();
+        ctxt->setActivationObject(activation);
+
+        workerEngine->baseUrl = url;
+        workerEngine->evaluate(script);
+
+        workerEngine->popContext();
+    }
+}
+
+QVariant QmlWorkerScriptEnginePrivate::scriptValueToVariant(const QScriptValue &value)
+{
+    if (value.isBool()) {
+        return QVariant(value.toBool());
+    } else if (value.isString()) {
+        return QVariant(value.toString());
+    } else if (value.isNumber()) {
+        return QVariant((qreal)value.toNumber());
+    } else if (value.isArray()) {
+        QVariantList list;
+
+        quint32 length = (quint32)value.property(QLatin1String("length")).toNumber();
+
+        for (quint32 ii = 0; ii < length; ++ii) {
+            QVariant v = scriptValueToVariant(ii);
+            list << v;
+        }
+
+        return QVariant(list);
+    } else if (value.isQObject()) {
+        QmlWorkerListModel *lm = qobject_cast<QmlWorkerListModel *>(value.toQObject());
+        if (lm) {
+            QmlWorkerListModelAgent::VariantRef v(lm->agent());
+            return qVariantFromValue(v);
+        } else {
+            // No other QObject's are allowed to be sent
+            return QVariant();
+        }
+    } else if (value.isObject()) {
+        QVariantHash hash;
+
+        QScriptValueIterator iter(value);
+
+        while (iter.hasNext()) {
+            iter.next();
+            hash.insert(iter.name(), scriptValueToVariant(iter.value()));
+        }
+
+        return QVariant(hash);
+    }
+
+    return QVariant();
+
+}
+
+QScriptValue QmlWorkerScriptEnginePrivate::variantToScriptValue(const QVariant &value, QScriptEngine *engine)
+{
+    if (value.userType() == QVariant::Bool) {
+        return QScriptValue(value.toBool());
+    } else if (value.userType() == QVariant::String) {
+        return QScriptValue(value.toString());
+    } else if (value.userType() == QMetaType::QReal) {
+        return QScriptValue(value.toReal());
+    } else if (value.userType() == qMetaTypeId<QmlWorkerListModelAgent::VariantRef>()) {
+        QmlWorkerListModelAgent::VariantRef vr = qvariant_cast<QmlWorkerListModelAgent::VariantRef>(value);
+        if (vr.a->m_engine == 0)
+            vr.a->m_engine = engine;
+        else if (vr.a->m_engine != engine)
+            return engine->nullValue();
+        QScriptValue o = engine->newQObject(vr.a);
+        o.setData(engine->newVariant(value)); // Keeps the agent ref so that it is cleaned up on gc
+        return o;
+    } else if (value.userType() == QMetaType::QVariantList) {
+        QVariantList list = qvariant_cast<QVariantList>(value);
+        QScriptValue rv = engine->newArray(list.count());
+
+        for (quint32 ii = 0; ii < quint32(list.count()); ++ii) 
+            rv.setProperty(ii, variantToScriptValue(list.at(ii), engine));
+
+        return rv;
+    } else if (value.userType() == QMetaType::QVariantHash) {
+
+        QVariantHash hash = qvariant_cast<QVariantHash>(value);
+
+        QScriptValue rv = engine->newObject();
+
+        for (QVariantHash::ConstIterator iter = hash.begin(); iter != hash.end(); ++iter) 
+            rv.setProperty(iter.key(), variantToScriptValue(iter.value(), engine));
+
+        return rv;
+    } else {
+        return engine->nullValue();
+    }
+}
+
+WorkerDataEvent::WorkerDataEvent(int workerId, const QVariant &data)
+: QEvent((QEvent::Type)WorkerData), m_id(workerId), m_data(data)
+{
+}
+
+WorkerDataEvent::~WorkerDataEvent()
+{
+}
+
+int WorkerDataEvent::workerId() const
+{
+    return m_id;
+}
+
+QVariant WorkerDataEvent::data() const
+{
+    return m_data;
+}
+
+WorkerLoadEvent::WorkerLoadEvent(int workerId, const QUrl &url)
+: QEvent((QEvent::Type)WorkerLoad), m_id(workerId), m_url(url)
+{
+}
+
+int WorkerLoadEvent::workerId() const
+{
+    return m_id;
+}
+
+QUrl WorkerLoadEvent::url() const
+{
+    return m_url;
+}
+
+WorkerRemoveEvent::WorkerRemoveEvent(int workerId)
+: QEvent((QEvent::Type)WorkerRemove), m_id(workerId)
+{
+}
+
+int WorkerRemoveEvent::workerId() const
+{
+    return m_id;
+}
+
+QmlWorkerScriptEngine::QmlWorkerScriptEngine(QObject *parent)
+: QThread(parent), d(new QmlWorkerScriptEnginePrivate)
+{
+    d->m_lock.lock();
+    start(QThread::LowPriority);
+    d->m_wait.wait(&d->m_lock);
+    d->moveToThread(this);
+    d->m_lock.unlock();
+}
+
+QmlWorkerScriptEngine::~QmlWorkerScriptEngine()
+{
+    qDeleteAll(d->workers);
+    delete d; d = 0;
+}
+
+QmlWorkerScriptEnginePrivate::WorkerScript::WorkerScript()
+: id(-1), initialized(false), owner(0)
+{
+}
+
+int QmlWorkerScriptEngine::registerWorkerScript(QmlWorkerScript *owner)
+{
+    QmlWorkerScriptEnginePrivate::WorkerScript *script = new QmlWorkerScriptEnginePrivate::WorkerScript;
+    script->id = d->m_nextId++;
+    script->owner = owner;
+
+    d->m_lock.lock();
+    d->workers.insert(script->id, script);
+    d->m_lock.unlock();
+
+    return script->id;
+}
+
+void QmlWorkerScriptEngine::removeWorkerScript(int id)
+{
+    QCoreApplication::postEvent(d, new WorkerRemoveEvent(id));
+}
+
+void QmlWorkerScriptEngine::executeUrl(int id, const QUrl &url)
+{
+    QCoreApplication::postEvent(d, new WorkerLoadEvent(id, url));
+}
+
+void QmlWorkerScriptEngine::sendMessage(int id, const QVariant &data)
+{
+    QCoreApplication::postEvent(d, new WorkerDataEvent(id, data));
+}
+
+void QmlWorkerScriptEngine::run()
+{
+    d->m_lock.lock();
+
+    d->workerEngine = new QmlWorkerScriptEnginePrivate::ScriptEngine(d);
+
+    d->m_wait.wakeAll();
+
+    d->m_lock.unlock();
+
+    exec();
+
+    delete d->workerEngine; d->workerEngine = 0;
+}
+
+QmlWorkerScript::QmlWorkerScript(QObject *parent)
+: QObject(parent), m_engine(0), m_scriptId(-1)
+{
+}
+
+QmlWorkerScript::~QmlWorkerScript()
+{
+    if (m_scriptId != -1) m_engine->removeWorkerScript(m_scriptId);
+}
+
+QUrl QmlWorkerScript::source() const
+{
+    return m_source;
+}
+
+void QmlWorkerScript::setSource(const QUrl &source)
+{
+    if (m_source == source)
+        return;
+
+    m_source = source;
+
+    if (m_engine) 
+        m_engine->executeUrl(m_scriptId, m_source);
+
+    emit sourceChanged();
+}
+
+void QmlWorkerScript::sendMessage(const QScriptValue &message)
+{
+    if (!m_engine) {
+        qWarning("QmlWorkerScript: Attempt to send message before WorkerScript establishment");
+        return;
+    }
+
+    m_engine->sendMessage(m_scriptId, QmlWorkerScriptEnginePrivate::scriptValueToVariant(message));
+}
+
+void QmlWorkerScript::componentComplete()
+{
+    if (!m_engine) {
+        QmlEngine *engine = qmlEngine(this);
+        if (!engine) {
+            qWarning("QmlWorkerScript: componentComplete() called without qmlEngine() set");
+            return;
+        }
+
+        m_engine = QmlEnginePrivate::get(engine)->getWorkerScriptEngine();
+        m_scriptId = m_engine->registerWorkerScript(this);
+
+        if (m_source.isValid())
+            m_engine->executeUrl(m_scriptId, m_source);
+    }
+}
+
+bool QmlWorkerScript::event(QEvent *event)
+{
+    if (event->type() == (QEvent::Type)WorkerDataEvent::WorkerData) {
+        QmlEngine *engine = qmlEngine(this);
+        if (engine) {
+            QScriptEngine *scriptEngine = QmlEnginePrivate::getScriptEngine(engine);
+            WorkerDataEvent *workerEvent = static_cast<WorkerDataEvent *>(event);
+            QScriptValue value = 
+                QmlWorkerScriptEnginePrivate::variantToScriptValue(workerEvent->data(), scriptEngine);
+            emit message(value);
+        }
+        return true;
+    } else {
+        return QObject::event(event);
+    }
+}
+
+QML_DEFINE_TYPE(Qt, 4, 6, WorkerScript, QmlWorkerScript);
+
+void QmlWorkerListModelAgent::Data::clearChange() 
+{ 
+    changes.clear(); 
+}
+
+void QmlWorkerListModelAgent::Data::insertChange(int index, int count) 
+{
+    Change c = { Change::Inserted, index, count, 0 };
+    changes << c;
+}
+
+void QmlWorkerListModelAgent::Data::removeChange(int index, int count) 
+{
+    Change c = { Change::Removed, index, count, 0 };
+    changes << c;
+}
+
+void QmlWorkerListModelAgent::Data::changedChange(int index, int count)
+{
+    Change c = { Change::Changed, index, count, 0 };
+    changes << c;
+}
+
+QmlWorkerListModelAgent::QmlWorkerListModelAgent(QmlWorkerListModel *m)
+: m_engine(0), m_ref(1), m_model(m)
+{
+    data.roles = m_model->m_roles;
+    data.strings = m_model->m_strings;
+    data.values = m_model->m_values;
+}
+
+QmlWorkerListModelAgent::~QmlWorkerListModelAgent()
+{
+}
+
+void QmlWorkerListModelAgent::addref()
+{
+    m_ref.ref();
+}
+
+void QmlWorkerListModelAgent::release()
+{
+    bool del = !m_ref.deref();
+
+    if (del)
+        delete this;
+}
+
+int QmlWorkerListModelAgent::count() const
+{
+    return data.values.count();
+}
+
+void QmlWorkerListModelAgent::clear()
+{
+    data.clearChange();
+    data.removeChange(0, data.values.count());
+    data.values.clear();
+}
+
+void QmlWorkerListModelAgent::remove(int index)
+{
+    if (data.values.count() <= index)
+        return;
+
+    data.values.removeAt(index);
+    data.removeChange(index, 1);
+}
+
+void QmlWorkerListModelAgent::append(const QScriptValue &value)
+{
+    QHash<int, QVariant> row;
+
+    QScriptValueIterator it(value);
+    while (it.hasNext()) {
+        it.next();
+        QString name = it.name();
+        QVariant v = it.value().toVariant();
+
+        QHash<QString, int>::Iterator iter = data.strings.find(name);
+        if (iter == data.strings.end()) {
+            int role = data.roles.count();
+            data.roles.insert(role, name);
+            iter = data.strings.insert(name, role);
+        }
+        row.insert(*iter, v);
+    }
+
+    data.values.append(row);
+    data.insertChange(data.values.count() - 1, 1);
+}
+
+void QmlWorkerListModelAgent::insert(int index, const QScriptValue &value)
+{
+    if (index > data.values.count())
+        return;
+
+    QHash<int, QVariant> row;
+
+    QScriptValueIterator it(value);
+    while (it.hasNext()) {
+        it.next();
+        QString name = it.name();
+        QVariant v = it.value().toVariant();
+
+        QHash<QString, int>::Iterator iter = data.strings.find(name);
+        if (iter == data.strings.end()) {
+            int role = data.roles.count();
+            data.roles.insert(role, name);
+            iter = data.strings.insert(name, role);
+        }
+        row.insert(*iter, v);
+    }
+
+    data.values.insert(index, row);
+    data.insertChange(index, 1);
+}
+
+void QmlWorkerListModelAgent::set(int index, const QScriptValue &value)
+{
+    if (data.values.count() <= index)
+        return;
+
+    QHash<int, QVariant> row;
+
+    QScriptValueIterator it(value);
+    while (it.hasNext()) {
+        it.next();
+        QString name = it.name();
+        QVariant v = it.value().toVariant();
+
+        QHash<QString, int>::Iterator iter = data.strings.find(name);
+        if (iter == data.strings.end()) {
+            int role = data.roles.count();
+            data.roles.insert(role, name);
+            iter = data.strings.insert(name, role);
+        }
+        row.insert(*iter, v);
+    }
+
+    if (data.values.at(index) != row) {
+        data.values[index] = row;
+        data.changedChange(index, 1);
+    }
+}
+
+QScriptValue QmlWorkerListModelAgent::get(int index) const
+{
+    if (data.values.count() <= index)
+        return m_engine->undefinedValue();
+
+    QScriptValue rv = m_engine->newObject();
+
+    QHash<int, QVariant> row = data.values.at(index);
+    for (QHash<int, QVariant>::ConstIterator iter = row.begin(); iter != row.end(); ++iter) 
+        rv.setProperty(data.roles.value(iter.key()), qScriptValueFromValue(m_engine, iter.value()));
+
+    return rv;
+}
+
+void QmlWorkerListModelAgent::sync()
+{
+    Sync *s = new Sync;
+    s->data = data;
+    data.changes.clear();
+    QCoreApplication::postEvent(this, s);
+}
+
+bool QmlWorkerListModelAgent::event(QEvent *e)
+{
+    if (e->type() == QEvent::User) {
+        Sync *s = static_cast<Sync *>(e);
+
+        const QList<Change> &changes = s->data.changes;
+
+        if (m_model) {
+            bool cc = m_model->m_values.count() != s->data.values.count();
+
+            m_model->m_roles = s->data.roles;
+            m_model->m_strings = s->data.strings;
+            m_model->m_values = s->data.values;
+
+            for (int ii = 0; ii < changes.count(); ++ii) {
+                const Change &change = changes.at(ii);
+                switch (change.type) {
+                case Change::Inserted:
+                    emit m_model->itemsInserted(change.index, change.count);
+                    break;
+                case Change::Removed:
+                    emit m_model->itemsRemoved(change.index, change.count);
+                    break;
+                case Change::Moved:
+                    emit m_model->itemsMoved(change.index, change.to, change.count);
+                    break;
+                case Change::Changed:
+                    emit m_model->itemsMoved(change.index, change.to, change.count);
+                    break;
+                }
+            }
+
+            if (cc)
+                emit m_model->countChanged();
+        }
+    }
+
+    return QObject::event(e);
+}
+
+QmlWorkerListModel::QmlWorkerListModel(QObject *parent)
+: QListModelInterface(parent), m_agent(0)
+{
+}
+
+QmlWorkerListModel::~QmlWorkerListModel()
+{
+    if (m_agent) {
+        m_agent->m_model = 0;
+        m_agent->release();
+    }
+}
+
+void QmlWorkerListModel::clear()
+{
+    if (m_agent) {
+        qmlInfo(this) << "List can only be modified from a WorkerScript";
+        return;
+    }
+
+    int count = m_values.count();
+    m_values.clear();
+    if (count) {
+        emit itemsRemoved(0, count);
+        emit countChanged();
+    }
+}
+
+void QmlWorkerListModel::remove(int index)
+{
+    if (m_agent) {
+        qmlInfo(this) << "List can only be modified from a WorkerScript";
+        return;
+    }
+
+    if (m_values.count() <= index)
+        return;
+
+    m_values.removeAt(index);
+    emit itemsRemoved(index, 1);
+    emit countChanged();
+}
+
+void QmlWorkerListModel::append(const QScriptValue &value)
+{
+    if (m_agent) {
+        qmlInfo(this) << "List can only be modified from a WorkerScript";
+        return;
+    }
+
+    QHash<int, QVariant> data;
+
+    QScriptValueIterator it(value);
+    while (it.hasNext()) {
+        it.next();
+        QString name = it.name();
+        QVariant v = it.value().toVariant();
+
+        QHash<QString, int>::Iterator iter = m_strings.find(name);
+        if (iter == m_strings.end()) {
+            int role = m_roles.count();
+            m_roles.insert(role, name);
+            iter = m_strings.insert(name, role);
+        }
+        data.insert(*iter, v);
+    }
+
+    m_values.append(data);
+
+    emit itemsInserted(m_values.count() - 1, 1);
+    emit countChanged();
+}
+
+void QmlWorkerListModel::insert(int index, const QScriptValue &value)
+{
+    if (m_agent) {
+        qmlInfo(this) << "List can only be modified from a WorkerScript";
+        return;
+    }
+
+    if (index > m_values.count())
+        return;
+
+    QHash<int, QVariant> data;
+
+    QScriptValueIterator it(value);
+    while (it.hasNext()) {
+        it.next();
+        QString name = it.name();
+        QVariant v = it.value().toVariant();
+
+        QHash<QString, int>::Iterator iter = m_strings.find(name);
+        if (iter == m_strings.end()) {
+            int role = m_roles.count();
+            m_roles.insert(role, name);
+            iter = m_strings.insert(name, role);
+        }
+        data.insert(*iter, v);
+    }
+
+    m_values.insert(index, data);
+    emit itemsInserted(index, 1);
+    emit countChanged();
+}
+
+QScriptValue QmlWorkerListModel::get(int index) const
+{
+    QmlEngine *engine = qmlEngine(this);
+    if (!engine || m_values.count() <= index)
+        return QScriptValue();
+
+    QScriptEngine *scriptEngine = QmlEnginePrivate::getScriptEngine(engine);
+    QScriptValue rv = scriptEngine->newObject();
+
+    QHash<int, QVariant> data = m_values.at(index);
+    for (QHash<int, QVariant>::ConstIterator iter = data.begin(); iter != data.end(); ++iter) 
+        rv.setProperty(m_roles.value(iter.key()), qScriptValueFromValue(scriptEngine, iter.value()));
+
+    return rv;
+}
+
+void QmlWorkerListModel::set(int index, const QScriptValue &value)
+{
+    if (m_agent) {
+        qmlInfo(this) << "List can only be modified from a WorkerScript";
+        return;
+    }
+
+    if (m_values.count() <= index)
+        return;
+
+    QHash<int, QVariant> data;
+
+    QScriptValueIterator it(value);
+    while (it.hasNext()) {
+        it.next();
+        QString name = it.name();
+        QVariant v = it.value().toVariant();
+
+        QHash<QString, int>::Iterator iter = m_strings.find(name);
+        if (iter == m_strings.end()) {
+            int role = m_roles.count();
+            m_roles.insert(role, name);
+            iter = m_strings.insert(name, role);
+        }
+        data.insert(*iter, v);
+    }
+
+    if (m_values.at(index) != data) {
+        m_values[index] = data;
+        emit itemsChanged(index, 1, m_roles.keys());
+    }
+}
+
+QmlWorkerListModelAgent *QmlWorkerListModel::agent()
+{
+    if (!m_agent) 
+        m_agent = new QmlWorkerListModelAgent(this);
+
+    return m_agent;
+}
+
+QList<int> QmlWorkerListModel::roles() const
+{
+    return m_roles.keys();
+}
+
+QString QmlWorkerListModel::toString(int role) const
+{
+    return m_roles.value(role);
+}
+
+int QmlWorkerListModel::count() const
+{
+    return m_values.count();
+}
+
+QHash<int,QVariant> QmlWorkerListModel::data(int index, const QList<int> &) const
+{
+    if (m_values.count() <= index)
+        return QHash<int, QVariant>();
+    else
+        return m_values.at(index);
+}
+
+QVariant QmlWorkerListModel::data(int index, int role) const
+{
+    if (m_values.count() <= index)
+        return QVariant();
+    else
+        return m_values.at(index).value(role);
+}
+
+QML_DEFINE_TYPE(Qt,4,6,WorkerListModel,QmlWorkerListModel)
+
+#include "qmlworkerscript.moc"
+
+QT_END_NAMESPACE