qdeclarativeengine.cpp

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#include "private/qdeclarativeengine_p.h"
#include "qdeclarativeengine.h"

#include "private/qdeclarativeboundsignal_p.h"
#include "private/qdeclarativecontext_p.h"
#include "private/qdeclarativecompiler_p.h"
#include "private/qdeclarativeglobalscriptclass_p.h"
#include "qdeclarative.h"
#include "qdeclarativecontext.h"
#include "qdeclarativeexpression.h"
#include "qdeclarativecomponent.h"
#include "private/qdeclarativebinding_p_p.h"
#include "private/qdeclarativevme_p.h"
#include "private/qdeclarativeenginedebugservice_p.h"
#include "private/qdeclarativestringconverters_p.h"
#include "private/qdeclarativexmlhttprequest_p.h"
#include "private/qdeclarativesqldatabase_p.h"
#include "private/qdeclarativetypenamescriptclass_p.h"
#include "private/qdeclarativelistscriptclass_p.h"
#include "qdeclarativescriptstring.h"
#include "private/qdeclarativeglobal_p.h"
#include "private/qdeclarativeworkerscript_p.h"
#include "private/qdeclarativecomponent_p.h"
#include "qdeclarativenetworkaccessmanagerfactory.h"
#include "qdeclarativeimageprovider.h"
#include "private/qdeclarativedirparser_p.h"
#include "qdeclarativeextensioninterface.h"
#include "private/qdeclarativelist_p.h"
#include "private/qdeclarativetypenamecache_p.h"
#include "private/qdeclarativeinclude_p.h"
#include "private/qdeclarativenotifier_p.h"
#include "private/qdeclarativedebugtrace_p.h"
#include "private/qdeclarativeapplication_p.h"
#include "private/qjsdebugservice_p.h"

#include <QtCore/qmetaobject.h>
#include <QScriptClass>
#include <QNetworkReply>
#include <QNetworkRequest>
#include <QNetworkAccessManager>
#include <QDesktopServices>
#include <QTimer>
#include <QList>
#include <QPair>
#include <QDebug>
#include <QMetaObject>
#include <QStack>
#include <QMap>
#include <QPluginLoader>
#include <QtGui/qapplication.h>
#include <QtGui/qfontdatabase.h>
#include <QtCore/qlibraryinfo.h>
#include <QtCore/qthreadstorage.h>
#include <QtCore/qthread.h>
#include <QtCore/qcoreapplication.h>
#include <QtCore/qdir.h>
#include <QtCore/qmutex.h>
#include <QtGui/qcolor.h>
#include <QtGui/qvector3d.h>
#include <QtGui/qsound.h>
#include <QtCore/qcryptographichash.h>

#include <private/qobject_p.h>
#include <private/qscriptdeclarativeclass_p.h>

#include <private/qdeclarativeitemsmodule_p.h>
#include <private/qdeclarativeutilmodule_p.h>

#ifdef Q_OS_WIN // for %APPDATA%
#include <qt_windows.h>
#include <qlibrary.h>
#include <windows.h>

#define CSIDL_APPDATA       0x001a  // <username>\Application Data
#endif

Q_DECLARE_METATYPE(QDeclarativeProperty)

QT_BEGIN_NAMESPACE

struct StaticQtMetaObject : public QObject
{
    static const QMetaObject *get()
        { return &static_cast<StaticQtMetaObject*> (0)->staticQtMetaObject; }
};

static bool qt_QmlQtModule_registered = false;
bool QDeclarativeEnginePrivate::qml_debugging_enabled = false;

void QDeclarativeEnginePrivate::defineModule()
{
    qmlRegisterType<QDeclarativeComponent>("QtQuick",1,0,"Component");
    qmlRegisterType<QObject>("QtQuick",1,0,"QtObject");
    qmlRegisterType<QDeclarativeWorkerScript>("QtQuick",1,0,"WorkerScript");

    qmlRegisterType<QDeclarativeBinding>();
}

void QDeclarativeEnginePrivate::defineModuleCompat()
{
    qmlRegisterType<QDeclarativeComponent>("Qt",4,7,"Component");
    qmlRegisterType<QObject>("Qt",4,7,"QtObject");
    qmlRegisterType<QDeclarativeWorkerScript>("Qt",4,7,"WorkerScript");
}

// Qt.include() is implemented in qdeclarativeinclude.cpp


QDeclarativeEnginePrivate::QDeclarativeEnginePrivate(QDeclarativeEngine *e)
: captureProperties(false), rootContext(0), isDebugging(false),
  outputWarningsToStdErr(true), contextClass(0), sharedContext(0), sharedScope(0),
  objectClass(0), valueTypeClass(0), globalClass(0), cleanup(0), erroredBindings(0),
  inProgressCreations(0), scriptEngine(this), workerScriptEngine(0), componentAttached(0),
  inBeginCreate(false), networkAccessManager(0), networkAccessManagerFactory(0),
  typeLoader(e), importDatabase(e), uniqueId(1)
{
    if (!qt_QmlQtModule_registered) {
        qt_QmlQtModule_registered = true;
        QDeclarativeEnginePrivate::defineModule();
        QDeclarativeItemModule::defineModule();
        QDeclarativeValueTypeFactory::registerValueTypes();
        QDeclarativeUtilModule::defineModule();
    }
    globalClass = new QDeclarativeGlobalScriptClass(&scriptEngine);
}

QUrl QDeclarativeScriptEngine::resolvedUrl(QScriptContext *context, const QUrl& url)
{
    if (p) {
        QDeclarativeContextData *ctxt = p->getContext(context);
        if (ctxt)
            return ctxt->resolvedUrl(url);
        else
            return p->getUrl(context).resolved(url);
    }
    return baseUrl.resolved(url);
}

QDeclarativeScriptEngine::QDeclarativeScriptEngine(QDeclarativeEnginePrivate *priv)
: p(priv), sqlQueryClass(0), namedNodeMapClass(0), nodeListClass(0)
{
    // Note that all documentation for stuff put on the global object goes in
    // doc/src/declarative/globalobject.qdoc

    bool mainthread = priv != 0;

    QScriptValue qtObject =
        newQMetaObject(StaticQtMetaObject::get());
    globalObject().setProperty(QLatin1String("Qt"), qtObject);

#ifndef QT_NO_DESKTOPSERVICES
    offlineStoragePath = QDesktopServices::storageLocation(QDesktopServices::DataLocation).replace(QLatin1Char('/'), QDir::separator())
        + QDir::separator() + QLatin1String("QML")
        + QDir::separator() + QLatin1String("OfflineStorage");
#endif

#ifndef QT_NO_XMLSTREAMREADER
    qt_add_qmlxmlhttprequest(this);
#endif
    qt_add_qmlsqldatabase(this);
    // XXX A Multimedia "Qt.Sound" class also needs to be made available,
    // XXX but we don't want a dependency in that cirection.
    // XXX When the above a done some better way, that way should also be
    // XXX used to add Qt.Sound class.

    //types
    if (mainthread)
        qtObject.setProperty(QLatin1String("include"), newFunction(QDeclarativeInclude::include, 2));
    else
        qtObject.setProperty(QLatin1String("include"), newFunction(QDeclarativeInclude::worker_include, 2));

    qtObject.setProperty(QLatin1String("isQtObject"), newFunction(QDeclarativeEnginePrivate::isQtObject, 1));
    qtObject.setProperty(QLatin1String("rgba"), newFunction(QDeclarativeEnginePrivate::rgba, 4));
    qtObject.setProperty(QLatin1String("hsla"), newFunction(QDeclarativeEnginePrivate::hsla, 4));
    qtObject.setProperty(QLatin1String("rect"), newFunction(QDeclarativeEnginePrivate::rect, 4));
    qtObject.setProperty(QLatin1String("point"), newFunction(QDeclarativeEnginePrivate::point, 2));
    qtObject.setProperty(QLatin1String("size"), newFunction(QDeclarativeEnginePrivate::size, 2));
    qtObject.setProperty(QLatin1String("vector3d"), newFunction(QDeclarativeEnginePrivate::vector3d, 3));

    if (mainthread) {
        //color helpers
        qtObject.setProperty(QLatin1String("lighter"), newFunction(QDeclarativeEnginePrivate::lighter, 1));
        qtObject.setProperty(QLatin1String("darker"), newFunction(QDeclarativeEnginePrivate::darker, 1));
        qtObject.setProperty(QLatin1String("tint"), newFunction(QDeclarativeEnginePrivate::tint, 2));
    }

#ifndef QT_NO_DATESTRING
    //date/time formatting
    qtObject.setProperty(QLatin1String("formatDate"),newFunction(QDeclarativeEnginePrivate::formatDate, 2));
    qtObject.setProperty(QLatin1String("formatTime"),newFunction(QDeclarativeEnginePrivate::formatTime, 2));
    qtObject.setProperty(QLatin1String("formatDateTime"),newFunction(QDeclarativeEnginePrivate::formatDateTime, 2));
#endif

    //misc methods
    qtObject.setProperty(QLatin1String("openUrlExternally"),newFunction(QDeclarativeEnginePrivate::desktopOpenUrl, 1));
    qtObject.setProperty(QLatin1String("fontFamilies"),newFunction(QDeclarativeEnginePrivate::fontFamilies, 0));
    qtObject.setProperty(QLatin1String("md5"),newFunction(QDeclarativeEnginePrivate::md5, 1));
    qtObject.setProperty(QLatin1String("btoa"),newFunction(QDeclarativeEnginePrivate::btoa, 1));
    qtObject.setProperty(QLatin1String("atob"),newFunction(QDeclarativeEnginePrivate::atob, 1));
    qtObject.setProperty(QLatin1String("quit"), newFunction(QDeclarativeEnginePrivate::quit, 0));
    qtObject.setProperty(QLatin1String("resolvedUrl"),newFunction(QDeclarativeScriptEngine::resolvedUrl, 1));

    if (mainthread) {
        qtObject.setProperty(QLatin1String("createQmlObject"),
                newFunction(QDeclarativeEnginePrivate::createQmlObject, 1));
        qtObject.setProperty(QLatin1String("createComponent"),
                newFunction(QDeclarativeEnginePrivate::createComponent, 1));
    }

    //firebug/webkit compat
    QScriptValue consoleObject = newObject();
    consoleObject.setProperty(QLatin1String("log"),newFunction(QDeclarativeEnginePrivate::consoleLog, 1));
    consoleObject.setProperty(QLatin1String("debug"),newFunction(QDeclarativeEnginePrivate::consoleLog, 1));
    globalObject().setProperty(QLatin1String("console"), consoleObject);

    // translation functions need to be installed
    // before the global script class is constructed (QTBUG-6437)
    installTranslatorFunctions();
}

QDeclarativeScriptEngine::~QDeclarativeScriptEngine()
{
    delete sqlQueryClass;
    delete nodeListClass;
    delete namedNodeMapClass;
}

QScriptValue QDeclarativeScriptEngine::resolvedUrl(QScriptContext *ctxt, QScriptEngine *engine)
{
    QString arg = ctxt->argument(0).toString();
    QUrl r = QDeclarativeScriptEngine::get(engine)->resolvedUrl(ctxt,QUrl(arg));
    return QScriptValue(r.toString());
}

QNetworkAccessManager *QDeclarativeScriptEngine::networkAccessManager()
{
    return p->getNetworkAccessManager();
}

QDeclarativeEnginePrivate::~QDeclarativeEnginePrivate()
{
    Q_ASSERT(inProgressCreations == 0);
    Q_ASSERT(bindValues.isEmpty());
    Q_ASSERT(parserStatus.isEmpty());

    while (cleanup) {
        QDeclarativeCleanup *c = cleanup;
        cleanup = c->next;
        if (cleanup) cleanup->prev = &cleanup;
        c->next = 0;
        c->prev = 0;
        c->clear();
    }

    delete rootContext;
    rootContext = 0;
    delete contextClass;
    contextClass = 0;
    delete objectClass;
    objectClass = 0;
    delete valueTypeClass;
    valueTypeClass = 0;
    delete typeNameClass;
    typeNameClass = 0;
    delete listClass;
    listClass = 0;
    delete globalClass;
    globalClass = 0;

    for(QHash<int, QDeclarativeCompiledData*>::ConstIterator iter = m_compositeTypes.constBegin(); iter != m_compositeTypes.constEnd(); ++iter)
        (*iter)->release();
    for(QHash<const QMetaObject *, QDeclarativePropertyCache *>::Iterator iter = propertyCache.begin(); iter != propertyCache.end(); ++iter)
        (*iter)->release();
    for(QHash<QPair<QDeclarativeType *, int>, QDeclarativePropertyCache *>::Iterator iter = typePropertyCache.begin(); iter != typePropertyCache.end(); ++iter)
        (*iter)->release();

}

void QDeclarativeEnginePrivate::clear(SimpleList<QDeclarativeAbstractBinding> &bvs)
{
    bvs.clear();
}

void QDeclarativeEnginePrivate::clear(SimpleList<QDeclarativeParserStatus> &pss)
{
    for (int ii = 0; ii < pss.count; ++ii) {
        QDeclarativeParserStatus *ps = pss.at(ii);
        if(ps)
            ps->d = 0;
    }
    pss.clear();
}

void QDeclarativePrivate::qdeclarativeelement_destructor(QObject *o)
{
    QObjectPrivate *p = QObjectPrivate::get(o);
    if (p->declarativeData) {
        QDeclarativeData *d = static_cast<QDeclarativeData*>(p->declarativeData);
        if (d->ownContext && d->context) {
            d->context->destroy();
            d->context = 0;
        }

        // Disconnect the notifiers now - during object destruction this would be too late, since
        // the disconnect call wouldn't be able to call disconnectNotify(), as it isn't possible to
        // get the metaobject anymore.
        d->disconnectNotifiers();
    }
}

void QDeclarativeData::destroyed(QAbstractDeclarativeData *d, QObject *o)
{
    static_cast<QDeclarativeData *>(d)->destroyed(o);
}

void QDeclarativeData::parentChanged(QAbstractDeclarativeData *d, QObject *o, QObject *p)
{
    static_cast<QDeclarativeData *>(d)->parentChanged(o, p);
}

void QDeclarativeData::objectNameChanged(QAbstractDeclarativeData *d, QObject *o)
{
    static_cast<QDeclarativeData *>(d)->objectNameChanged(o);
}

void QDeclarativeEnginePrivate::init()
{
    Q_Q(QDeclarativeEngine);
    qRegisterMetaType<QVariant>("QVariant");
    qRegisterMetaType<QDeclarativeScriptString>("QDeclarativeScriptString");
    qRegisterMetaType<QScriptValue>("QScriptValue");
    qRegisterMetaType<QDeclarativeComponent::Status>("QDeclarativeComponent::Status");

    QDeclarativeData::init();

    contextClass = new QDeclarativeContextScriptClass(q);
    objectClass = new QDeclarativeObjectScriptClass(q);
    valueTypeClass = new QDeclarativeValueTypeScriptClass(q);
    typeNameClass = new QDeclarativeTypeNameScriptClass(q);
    listClass = new QDeclarativeListScriptClass(q);
    rootContext = new QDeclarativeContext(q,true);

    QScriptValue applicationObject = objectClass->newQObject(new QDeclarativeApplication(q));
    scriptEngine.globalObject().property(QLatin1String("Qt")).setProperty(QLatin1String("application"), applicationObject);

    if (QCoreApplication::instance()->thread() == q->thread() &&
        QDeclarativeEngineDebugService::isDebuggingEnabled()) {
        isDebugging = true;
        QDeclarativeEngineDebugService::instance()->addEngine(q);
        QJSDebugService::instance()->addEngine(q);
    }
}

QDeclarativeWorkerScriptEngine *QDeclarativeEnginePrivate::getWorkerScriptEngine()
{
    Q_Q(QDeclarativeEngine);
    if (!workerScriptEngine)
        workerScriptEngine = new QDeclarativeWorkerScriptEngine(q);
    return workerScriptEngine;
}

QDeclarativeEngine::QDeclarativeEngine(QObject *parent)
: QObject(*new QDeclarativeEnginePrivate(this), parent)
{
    Q_D(QDeclarativeEngine);
    d->init();
}

QDeclarativeEngine::~QDeclarativeEngine()
{
    Q_D(QDeclarativeEngine);
    if (d->isDebugging) {
        QDeclarativeEngineDebugService::instance()->remEngine(this);
        QJSDebugService::instance()->removeEngine(this);
    }
}

void QDeclarativeEngine::clearComponentCache()
{
    Q_D(QDeclarativeEngine);
    d->typeLoader.clearCache();
}

QDeclarativeContext *QDeclarativeEngine::rootContext() const
{
    Q_D(const QDeclarativeEngine);
    return d->rootContext;
}

void QDeclarativeEngine::setNetworkAccessManagerFactory(QDeclarativeNetworkAccessManagerFactory *factory)
{
    Q_D(QDeclarativeEngine);
    QMutexLocker locker(&d->mutex);
    d->networkAccessManagerFactory = factory;
}

QDeclarativeNetworkAccessManagerFactory *QDeclarativeEngine::networkAccessManagerFactory() const
{
    Q_D(const QDeclarativeEngine);
    return d->networkAccessManagerFactory;
}

QNetworkAccessManager *QDeclarativeEnginePrivate::createNetworkAccessManager(QObject *parent) const
{
    QMutexLocker locker(&mutex);
    QNetworkAccessManager *nam;
    if (networkAccessManagerFactory) {
        nam = networkAccessManagerFactory->create(parent);
    } else {
        nam = new QNetworkAccessManager(parent);
    }

    return nam;
}

QNetworkAccessManager *QDeclarativeEnginePrivate::getNetworkAccessManager() const
{
    Q_Q(const QDeclarativeEngine);
    if (!networkAccessManager)
        networkAccessManager = createNetworkAccessManager(const_cast<QDeclarativeEngine*>(q));
    return networkAccessManager;
}

QNetworkAccessManager *QDeclarativeEngine::networkAccessManager() const
{
    Q_D(const QDeclarativeEngine);
    return d->getNetworkAccessManager();
}

void QDeclarativeEngine::addImageProvider(const QString &providerId, QDeclarativeImageProvider *provider)
{
    Q_D(QDeclarativeEngine);
    QMutexLocker locker(&d->mutex);
    d->imageProviders.insert(providerId.toLower(), QSharedPointer<QDeclarativeImageProvider>(provider));
}

QDeclarativeImageProvider *QDeclarativeEngine::imageProvider(const QString &providerId) const
{
    Q_D(const QDeclarativeEngine);
    QMutexLocker locker(&d->mutex);
    return d->imageProviders.value(providerId).data();
}

void QDeclarativeEngine::removeImageProvider(const QString &providerId)
{
    Q_D(QDeclarativeEngine);
    QMutexLocker locker(&d->mutex);
    d->imageProviders.take(providerId);
}

QDeclarativeImageProvider::ImageType QDeclarativeEnginePrivate::getImageProviderType(const QUrl &url)
{
    QMutexLocker locker(&mutex);
    QSharedPointer<QDeclarativeImageProvider> provider = imageProviders.value(url.host());
    locker.unlock();
    if (provider)
        return provider->imageType();
    return static_cast<QDeclarativeImageProvider::ImageType>(-1);
}

QImage QDeclarativeEnginePrivate::getImageFromProvider(const QUrl &url, QSize *size, const QSize& req_size)
{
    QMutexLocker locker(&mutex);
    QImage image;
    QSharedPointer<QDeclarativeImageProvider> provider = imageProviders.value(url.host());
    locker.unlock();
    if (provider) {
        QString imageId = url.toString(QUrl::RemoveScheme | QUrl::RemoveAuthority).mid(1);
        image = provider->requestImage(imageId, size, req_size);
    }
    return image;
}

QPixmap QDeclarativeEnginePrivate::getPixmapFromProvider(const QUrl &url, QSize *size, const QSize& req_size)
{
    QMutexLocker locker(&mutex);
    QPixmap pixmap;
    QSharedPointer<QDeclarativeImageProvider> provider = imageProviders.value(url.host());
    locker.unlock();
    if (provider) {
        QString imageId = url.toString(QUrl::RemoveScheme | QUrl::RemoveAuthority).mid(1);
        pixmap = provider->requestPixmap(imageId, size, req_size);
    }
    return pixmap;
}

QUrl QDeclarativeEngine::baseUrl() const
{
    Q_D(const QDeclarativeEngine);
    if (d->baseUrl.isEmpty()) {
        return QUrl::fromLocalFile(QDir::currentPath() + QDir::separator());
    } else {
        return d->baseUrl;
    }
}

void QDeclarativeEngine::setBaseUrl(const QUrl &url)
{
    Q_D(QDeclarativeEngine);
    d->baseUrl = url;
}

bool QDeclarativeEngine::outputWarningsToStandardError() const
{
    Q_D(const QDeclarativeEngine);
    return d->outputWarningsToStdErr;
}

void QDeclarativeEngine::setOutputWarningsToStandardError(bool enabled)
{
    Q_D(QDeclarativeEngine);
    d->outputWarningsToStdErr = enabled;
}

QDeclarativeContext *QDeclarativeEngine::contextForObject(const QObject *object)
{
    if(!object)
        return 0;

    QObjectPrivate *priv = QObjectPrivate::get(const_cast<QObject *>(object));

    QDeclarativeData *data =
        static_cast<QDeclarativeData *>(priv->declarativeData);

    if (!data)
        return 0;
    else if (data->outerContext)
        return data->outerContext->asQDeclarativeContext();
    else
        return 0;
}

void QDeclarativeEngine::setContextForObject(QObject *object, QDeclarativeContext *context)
{
    if (!object || !context)
        return;

    QDeclarativeData *data = QDeclarativeData::get(object, true);
    if (data->context) {
        qWarning("QDeclarativeEngine::setContextForObject(): Object already has a QDeclarativeContext");
        return;
    }

    QDeclarativeContextData *contextData = QDeclarativeContextData::get(context);
    contextData->addObject(object);
}

void QDeclarativeEngine::setObjectOwnership(QObject *object, ObjectOwnership ownership)
{
    if (!object)
        return;

    QDeclarativeData *ddata = QDeclarativeData::get(object, true);
    if (!ddata)
        return;

    ddata->indestructible = (ownership == CppOwnership)?true:false;
    ddata->explicitIndestructibleSet = true;
}

QDeclarativeEngine::ObjectOwnership QDeclarativeEngine::objectOwnership(QObject *object)
{
    if (!object)
        return CppOwnership;

    QDeclarativeData *ddata = QDeclarativeData::get(object, false);
    if (!ddata)
        return CppOwnership;
    else
        return ddata->indestructible?CppOwnership:JavaScriptOwnership;
}

Q_AUTOTEST_EXPORT void qmlExecuteDeferred(QObject *object)
{
    QDeclarativeData *data = QDeclarativeData::get(object);

    if (data && data->deferredComponent) {
        if (QDeclarativeDebugService::isDebuggingEnabled()) {
            QDeclarativeDebugTrace::startRange(QDeclarativeDebugTrace::Creating);
            QDeclarativeType *type = QDeclarativeMetaType::qmlType(object->metaObject());
            QString typeName = type ? QLatin1String(type->qmlTypeName()) : QString::fromLatin1(object->metaObject()->className());
            QDeclarativeDebugTrace::rangeData(QDeclarativeDebugTrace::Creating, typeName);
            if (data->outerContext)
                QDeclarativeDebugTrace::rangeLocation(QDeclarativeDebugTrace::Creating, data->outerContext->url, data->lineNumber);
        }
        QDeclarativeEnginePrivate *ep = QDeclarativeEnginePrivate::get(data->context->engine);

        QDeclarativeComponentPrivate::ConstructionState state;
        QDeclarativeComponentPrivate::beginDeferred(ep, object, &state);

        data->deferredComponent->release();
        data->deferredComponent = 0;

        QDeclarativeComponentPrivate::complete(ep, &state);
        QDeclarativeDebugTrace::endRange(QDeclarativeDebugTrace::Creating);
    }
}

QDeclarativeContext *qmlContext(const QObject *obj)
{
    return QDeclarativeEngine::contextForObject(obj);
}

QDeclarativeEngine *qmlEngine(const QObject *obj)
{
    QDeclarativeContext *context = QDeclarativeEngine::contextForObject(obj);
    return context?context->engine():0;
}

QObject *qmlAttachedPropertiesObjectById(int id, const QObject *object, bool create)
{
    QDeclarativeData *data = QDeclarativeData::get(object);
    if (!data)
        return 0; // Attached properties are only on objects created by QML

    QObject *rv = data->hasExtendedData()?data->attachedProperties()->value(id):0;
    if (rv || !create)
        return rv;

    QDeclarativeAttachedPropertiesFunc pf = QDeclarativeMetaType::attachedPropertiesFuncById(id);
    if (!pf)
        return 0;

    rv = pf(const_cast<QObject *>(object));

    if (rv)
        data->attachedProperties()->insert(id, rv);

    return rv;
}

QObject *qmlAttachedPropertiesObject(int *idCache, const QObject *object,
                                     const QMetaObject *attachedMetaObject, bool create)
{
    if (*idCache == -1)
        *idCache = QDeclarativeMetaType::attachedPropertiesFuncId(attachedMetaObject);

    if (*idCache == -1 || !object)
        return 0;

    return qmlAttachedPropertiesObjectById(*idCache, object, create);
}

QDeclarativeDebuggingEnabler::QDeclarativeDebuggingEnabler()
{
#ifndef QDECLARATIVE_NO_DEBUG_PROTOCOL
    if (!QDeclarativeEnginePrivate::qml_debugging_enabled) {
        qDebug("Qml debugging is enabled. Only use this in a safe environment!");
    }
    QDeclarativeEnginePrivate::qml_debugging_enabled = true;
#endif
}


class QDeclarativeDataExtended {
public:
    QDeclarativeDataExtended();
    ~QDeclarativeDataExtended();

    QHash<int, QObject *> attachedProperties;
    QDeclarativeNotifier objectNameNotifier;
    QList<QDeclarativeAbstractBoundSignal *> boundSignals;
};

QDeclarativeDataExtended::QDeclarativeDataExtended()
{
}

QDeclarativeDataExtended::~QDeclarativeDataExtended()
{
}

QDeclarativeNotifier *QDeclarativeData::objectNameNotifier() const
{
    if (!extendedData) extendedData = new QDeclarativeDataExtended;
    return &extendedData->objectNameNotifier;
}

QHash<int, QObject *> *QDeclarativeData::attachedProperties() const
{
    if (!extendedData) extendedData = new QDeclarativeDataExtended;
    return &extendedData->attachedProperties;
}

void QDeclarativeData::addBoundSignal(QDeclarativeAbstractBoundSignal *signal)
{
    if (!extendedData) extendedData = new QDeclarativeDataExtended;
    extendedData->boundSignals.append(signal);
}

void QDeclarativeData::removeBoundSignal(QDeclarativeAbstractBoundSignal *signal)
{
    if (extendedData)
        extendedData->boundSignals.removeAll(signal);
}

void QDeclarativeData::disconnectNotifiers()
{
    QDeclarativeAbstractBinding *binding = bindings;
    while (binding) {
        binding->disconnect(QDeclarativeAbstractBinding::DisconnectAll);
        binding = binding->m_nextBinding;
    }

    if (extendedData) {
        Q_FOREACH (QDeclarativeAbstractBoundSignal *signal, extendedData->boundSignals)
            signal->disconnect();
    }
}

void QDeclarativeData::destroyed(QObject *object)
{
    if (deferredComponent)
        deferredComponent->release();

    if (nextContextObject)
        nextContextObject->prevContextObject = prevContextObject;
    if (prevContextObject)
        *prevContextObject = nextContextObject;

    QDeclarativeAbstractBinding *binding = bindings;
    while (binding) {
        QDeclarativeAbstractBinding *next = binding->m_nextBinding;
        binding->m_prevBinding = 0;
        binding->m_nextBinding = 0;
        binding->destroy(QDeclarativeAbstractBinding::KeepBindingConnected);
        binding = next;
    }

    if (bindingBits)
        free(bindingBits);

    if (propertyCache)
        propertyCache->release();

    if (ownContext && context)
        context->destroy();

    while (guards) {
        QDeclarativeGuard<QObject> *guard = static_cast<QDeclarativeGuard<QObject> *>(guards);
        *guard = (QObject *)0;
        guard->objectDestroyed(object);
    }

    if (scriptValue)
        delete scriptValue;

    if (extendedData)
        delete extendedData;

    if (ownMemory)
        delete this;
}

void QDeclarativeData::parentChanged(QObject *, QObject *parent)
{
    if (!parent && scriptValue) { delete scriptValue; scriptValue = 0; }
}

void QDeclarativeData::objectNameChanged(QObject *)
{
    if (extendedData) objectNameNotifier()->notify();
}

bool QDeclarativeData::hasBindingBit(int bit) const
{
    if (bindingBitsSize > bit)
        return bindingBits[bit / 32] & (1 << (bit % 32));
    else
        return false;
}

void QDeclarativeData::clearBindingBit(int bit)
{
    if (bindingBitsSize > bit)
        bindingBits[bit / 32] &= ~(1 << (bit % 32));
}

void QDeclarativeData::setBindingBit(QObject *obj, int bit)
{
    if (bindingBitsSize <= bit) {
        int props = obj->metaObject()->propertyCount();
        Q_ASSERT(bit < props);

        int arraySize = (props + 31) / 32;
        int oldArraySize = bindingBitsSize / 32;

        bindingBits = (quint32 *)q_check_ptr(realloc(bindingBits,
                                         arraySize * sizeof(quint32)));

        memset(bindingBits + oldArraySize,
               0x00,
               sizeof(quint32) * (arraySize - oldArraySize));

        bindingBitsSize = arraySize * 32;
    }

    bindingBits[bit / 32] |= (1 << (bit % 32));
}

QScriptValue QDeclarativeEnginePrivate::qmlScriptObject(QObject* object,
                                               QDeclarativeEngine* engine)
{
    QDeclarativeEnginePrivate *enginePriv = QDeclarativeEnginePrivate::get(engine);
    return enginePriv->objectClass->newQObject(object);
}

QDeclarativeContextData *QDeclarativeEnginePrivate::getContext(QScriptContext *ctxt)
{
    QScriptValue scopeNode = QScriptDeclarativeClass::scopeChainValue(ctxt, -3);
    Q_ASSERT(scopeNode.isValid());
    Q_ASSERT(QScriptDeclarativeClass::scriptClass(scopeNode) == contextClass);
    return contextClass->contextFromValue(scopeNode);
}

QUrl QDeclarativeEnginePrivate::getUrl(QScriptContext *ctxt)
{
    QScriptValue scopeNode = QScriptDeclarativeClass::scopeChainValue(ctxt, -3);
    Q_ASSERT(scopeNode.isValid());
    Q_ASSERT(QScriptDeclarativeClass::scriptClass(scopeNode) == contextClass);
    return contextClass->urlFromValue(scopeNode);
}

QString QDeclarativeEnginePrivate::urlToLocalFileOrQrc(const QUrl& url)
{
    if (url.scheme().compare(QLatin1String("qrc"), Qt::CaseInsensitive) == 0) {
        if (url.authority().isEmpty())
            return QLatin1Char(':') + url.path();
        return QString();
    }
    return url.toLocalFile();
}

QScriptValue QDeclarativeEnginePrivate::createComponent(QScriptContext *ctxt, QScriptEngine *engine)
{
    QDeclarativeEnginePrivate *activeEnginePriv =
        static_cast<QDeclarativeScriptEngine*>(engine)->p;
    QDeclarativeEngine* activeEngine = activeEnginePriv->q_func();

    if(ctxt->argumentCount() != 1) {
        return ctxt->throwError(QLatin1String("Qt.createComponent(): Invalid arguments"));
    } else {

        QString arg = ctxt->argument(0).toString();
        if (arg.isEmpty())
            return engine->nullValue();
        QUrl url = QDeclarativeScriptEngine::get(engine)->resolvedUrl(ctxt, QUrl(arg));
        QDeclarativeContextData* context = activeEnginePriv->getContext(ctxt);
        QDeclarativeComponent *c = new QDeclarativeComponent(activeEngine, url, activeEngine);
        QDeclarativeComponentPrivate::get(c)->creationContext = context;
        QDeclarativeData::get(c, true)->setImplicitDestructible();
        return activeEnginePriv->objectClass->newQObject(c, qMetaTypeId<QDeclarativeComponent*>());
    }
}

QScriptValue QDeclarativeEnginePrivate::createQmlObject(QScriptContext *ctxt, QScriptEngine *engine)
{
    QDeclarativeEnginePrivate *activeEnginePriv =
        static_cast<QDeclarativeScriptEngine*>(engine)->p;
    QDeclarativeEngine* activeEngine = activeEnginePriv->q_func();

    if(ctxt->argumentCount() < 2 || ctxt->argumentCount() > 3)
        return ctxt->throwError(QLatin1String("Qt.createQmlObject(): Invalid arguments"));

    QDeclarativeContextData* context = activeEnginePriv->getContext(ctxt);
    Q_ASSERT(context);

    QString qml = ctxt->argument(0).toString();
    if (qml.isEmpty())
        return engine->nullValue();

    QUrl url;
    if(ctxt->argumentCount() > 2)
        url = QUrl(ctxt->argument(2).toString());
    else
        url = QUrl(QLatin1String("inline"));

    if (url.isValid() && url.isRelative())
        url = context->resolvedUrl(url);

    QObject *parentArg = activeEnginePriv->objectClass->toQObject(ctxt->argument(1));
    if(!parentArg)
        return ctxt->throwError(QLatin1String("Qt.createQmlObject(): Missing parent object"));

    QDeclarativeComponent component(activeEngine);
    component.setData(qml.toUtf8(), url);

    if(component.isError()) {
        QList<QDeclarativeError> errors = component.errors();
        QString errstr = QLatin1String("Qt.createQmlObject() failed to create object: ");
        QScriptValue arr = ctxt->engine()->newArray(errors.length());
        int i = 0;
        foreach (const QDeclarativeError &error, errors){
            errstr += QLatin1String("    ") + error.toString() + QLatin1String("\n");
            QScriptValue qmlErrObject = ctxt->engine()->newObject();
            qmlErrObject.setProperty(QLatin1String("lineNumber"), QScriptValue(error.line()));
            qmlErrObject.setProperty(QLatin1String("columnNumber"), QScriptValue(error.column()));
            qmlErrObject.setProperty(QLatin1String("fileName"), QScriptValue(error.url().toString()));
            qmlErrObject.setProperty(QLatin1String("message"), QScriptValue(error.description()));
            arr.setProperty(i++, qmlErrObject);
        }
        QScriptValue err = ctxt->throwError(errstr);
        err.setProperty(QLatin1String("qmlErrors"),arr);
        return err;
    }

    if (!component.isReady())
        return ctxt->throwError(QLatin1String("Qt.createQmlObject(): Component is not ready"));

    QObject *obj = component.beginCreate(context->asQDeclarativeContext());
    if(obj)
        QDeclarativeData::get(obj, true)->setImplicitDestructible();
    component.completeCreate();

    if(component.isError()) {
        QList<QDeclarativeError> errors = component.errors();
        QString errstr = QLatin1String("Qt.createQmlObject() failed to create object: ");
        QScriptValue arr = ctxt->engine()->newArray(errors.length());
        int i = 0;
        foreach (const QDeclarativeError &error, errors){
            errstr += QLatin1String("    ") + error.toString() + QLatin1String("\n");
            QScriptValue qmlErrObject = ctxt->engine()->newObject();
            qmlErrObject.setProperty(QLatin1String("lineNumber"), QScriptValue(error.line()));
            qmlErrObject.setProperty(QLatin1String("columnNumber"), QScriptValue(error.column()));
            qmlErrObject.setProperty(QLatin1String("fileName"), QScriptValue(error.url().toString()));
            qmlErrObject.setProperty(QLatin1String("message"), QScriptValue(error.description()));
            arr.setProperty(i++, qmlErrObject);
        }
        QScriptValue err = ctxt->throwError(errstr);
        err.setProperty(QLatin1String("qmlErrors"),arr);
        return err;
    }

    Q_ASSERT(obj);

    obj->setParent(parentArg);

    QList<QDeclarativePrivate::AutoParentFunction> functions = QDeclarativeMetaType::parentFunctions();
    for (int ii = 0; ii < functions.count(); ++ii) {
        if (QDeclarativePrivate::Parented == functions.at(ii)(obj, parentArg))
            break;
    }

    QDeclarativeData::get(obj, true)->setImplicitDestructible();
    return activeEnginePriv->objectClass->newQObject(obj, QMetaType::QObjectStar);
}

QScriptValue QDeclarativeEnginePrivate::isQtObject(QScriptContext *ctxt, QScriptEngine *engine)
{
    if (ctxt->argumentCount() == 0)
        return QScriptValue(engine, false);

    return QScriptValue(engine, 0 != ctxt->argument(0).toQObject());
}

QScriptValue QDeclarativeEnginePrivate::vector3d(QScriptContext *ctxt, QScriptEngine *engine)
{
    if(ctxt->argumentCount() != 3)
        return ctxt->throwError(QLatin1String("Qt.vector(): Invalid arguments"));
    qsreal x = ctxt->argument(0).toNumber();
    qsreal y = ctxt->argument(1).toNumber();
    qsreal z = ctxt->argument(2).toNumber();
    return QDeclarativeEnginePrivate::get(engine)->scriptValueFromVariant(QVariant::fromValue(QVector3D(x, y, z)));
}

#ifndef QT_NO_DATESTRING
QScriptValue QDeclarativeEnginePrivate::formatDate(QScriptContext*ctxt, QScriptEngine*engine)
{
    int argCount = ctxt->argumentCount();
    if(argCount == 0 || argCount > 2)
        return ctxt->throwError(QLatin1String("Qt.formatDate(): Invalid arguments"));

    QDate date = ctxt->argument(0).toDateTime().date();
    Qt::DateFormat enumFormat = Qt::DefaultLocaleShortDate;
    if (argCount == 2) {
        QScriptValue formatArg = ctxt->argument(1);
        if (formatArg.isString()) {
            QString format = formatArg.toString();
            return engine->newVariant(QVariant::fromValue(date.toString(format)));
        } else if (formatArg.isNumber()) {
            enumFormat = Qt::DateFormat(formatArg.toUInt32());
        } else {
            return ctxt->throwError(QLatin1String("Qt.formatDate(): Invalid date format"));
        }
    }
    return engine->newVariant(QVariant::fromValue(date.toString(enumFormat)));
}

QScriptValue QDeclarativeEnginePrivate::formatTime(QScriptContext*ctxt, QScriptEngine*engine)
{
    int argCount = ctxt->argumentCount();
    if(argCount == 0 || argCount > 2)
        return ctxt->throwError(QLatin1String("Qt.formatTime(): Invalid arguments"));

    QTime time;
    QScriptValue sv = ctxt->argument(0);
    if (sv.isDate())
        time = sv.toDateTime().time();
    else if (sv.toVariant().type() == QVariant::Time)
        time = sv.toVariant().toTime();

    Qt::DateFormat enumFormat = Qt::DefaultLocaleShortDate;
    if (argCount == 2) {
        QScriptValue formatArg = ctxt->argument(1);
        if (formatArg.isString()) {
            QString format = formatArg.toString();
            return engine->newVariant(QVariant::fromValue(time.toString(format)));
        } else if (formatArg.isNumber()) {
            enumFormat = Qt::DateFormat(formatArg.toUInt32());
        } else {
            return ctxt->throwError(QLatin1String("Qt.formatTime(): Invalid time format"));
        }
    }
    return engine->newVariant(QVariant::fromValue(time.toString(enumFormat)));
}

QScriptValue QDeclarativeEnginePrivate::formatDateTime(QScriptContext*ctxt, QScriptEngine*engine)
{
    int argCount = ctxt->argumentCount();
    if(argCount == 0 || argCount > 2)
        return ctxt->throwError(QLatin1String("Qt.formatDateTime(): Invalid arguments"));

    QDateTime date = ctxt->argument(0).toDateTime();
    Qt::DateFormat enumFormat = Qt::DefaultLocaleShortDate;
    if (argCount == 2) {
        QScriptValue formatArg = ctxt->argument(1);
        if (formatArg.isString()) {
            QString format = formatArg.toString();
            return engine->newVariant(QVariant::fromValue(date.toString(format)));
        } else if (formatArg.isNumber()) {
            enumFormat = Qt::DateFormat(formatArg.toUInt32());
        } else {
            return ctxt->throwError(QLatin1String("Qt.formatDateTime(): Invalid datetime format"));
        }
    }
    return engine->newVariant(QVariant::fromValue(date.toString(enumFormat)));
}
#endif // QT_NO_DATESTRING

QScriptValue QDeclarativeEnginePrivate::rgba(QScriptContext *ctxt, QScriptEngine *engine)
{
    int argCount = ctxt->argumentCount();
    if(argCount < 3 || argCount > 4)
        return ctxt->throwError(QLatin1String("Qt.rgba(): Invalid arguments"));
    qsreal r = ctxt->argument(0).toNumber();
    qsreal g = ctxt->argument(1).toNumber();
    qsreal b = ctxt->argument(2).toNumber();
    qsreal a = (argCount == 4) ? ctxt->argument(3).toNumber() : 1;

    if (r < 0.0) r=0.0;
    if (r > 1.0) r=1.0;
    if (g < 0.0) g=0.0;
    if (g > 1.0) g=1.0;
    if (b < 0.0) b=0.0;
    if (b > 1.0) b=1.0;
    if (a < 0.0) a=0.0;
    if (a > 1.0) a=1.0;

    return engine->toScriptValue(QVariant::fromValue(QColor::fromRgbF(r, g, b, a)));
}

QScriptValue QDeclarativeEnginePrivate::hsla(QScriptContext *ctxt, QScriptEngine *engine)
{
    int argCount = ctxt->argumentCount();
    if(argCount < 3 || argCount > 4)
        return ctxt->throwError(QLatin1String("Qt.hsla(): Invalid arguments"));
    qsreal h = ctxt->argument(0).toNumber();
    qsreal s = ctxt->argument(1).toNumber();
    qsreal l = ctxt->argument(2).toNumber();
    qsreal a = (argCount == 4) ? ctxt->argument(3).toNumber() : 1;

    if (h < 0.0) h=0.0;
    if (h > 1.0) h=1.0;
    if (s < 0.0) s=0.0;
    if (s > 1.0) s=1.0;
    if (l < 0.0) l=0.0;
    if (l > 1.0) l=1.0;
    if (a < 0.0) a=0.0;
    if (a > 1.0) a=1.0;

    return engine->toScriptValue(QVariant::fromValue(QColor::fromHslF(h, s, l, a)));
}

QScriptValue QDeclarativeEnginePrivate::rect(QScriptContext *ctxt, QScriptEngine *engine)
{
    if(ctxt->argumentCount() != 4)
        return ctxt->throwError(QLatin1String("Qt.rect(): Invalid arguments"));

    qsreal x = ctxt->argument(0).toNumber();
    qsreal y = ctxt->argument(1).toNumber();
    qsreal w = ctxt->argument(2).toNumber();
    qsreal h = ctxt->argument(3).toNumber();

    return QDeclarativeEnginePrivate::get(engine)->scriptValueFromVariant(QVariant::fromValue(QRectF(x, y, w, h)));
}

QScriptValue QDeclarativeEnginePrivate::point(QScriptContext *ctxt, QScriptEngine *engine)
{
    if(ctxt->argumentCount() != 2)
        return ctxt->throwError(QLatin1String("Qt.point(): Invalid arguments"));
    qsreal x = ctxt->argument(0).toNumber();
    qsreal y = ctxt->argument(1).toNumber();
    return QDeclarativeEnginePrivate::get(engine)->scriptValueFromVariant(QVariant::fromValue(QPointF(x, y)));
}

QScriptValue QDeclarativeEnginePrivate::size(QScriptContext *ctxt, QScriptEngine *engine)
{
    if(ctxt->argumentCount() != 2)
        return ctxt->throwError(QLatin1String("Qt.size(): Invalid arguments"));
    qsreal w = ctxt->argument(0).toNumber();
    qsreal h = ctxt->argument(1).toNumber();
    return QDeclarativeEnginePrivate::get(engine)->scriptValueFromVariant(QVariant::fromValue(QSizeF(w, h)));
}

QScriptValue QDeclarativeEnginePrivate::lighter(QScriptContext *ctxt, QScriptEngine *engine)
{
    if(ctxt->argumentCount() != 1 && ctxt->argumentCount() != 2)
        return ctxt->throwError(QLatin1String("Qt.lighter(): Invalid arguments"));
    QVariant v = ctxt->argument(0).toVariant();
    QColor color;
    if (v.userType() == QVariant::Color)
        color = v.value<QColor>();
    else if (v.userType() == QVariant::String) {
        bool ok;
        color = QDeclarativeStringConverters::colorFromString(v.toString(), &ok);
        if (!ok)
            return engine->nullValue();
    } else
        return engine->nullValue();
    qsreal factor = 1.5;
    if (ctxt->argumentCount() == 2)
        factor = ctxt->argument(1).toNumber();
    color = color.lighter(int(qRound(factor*100.)));
    return engine->toScriptValue(QVariant::fromValue(color));
}

QScriptValue QDeclarativeEnginePrivate::darker(QScriptContext *ctxt, QScriptEngine *engine)
{
    if(ctxt->argumentCount() != 1 && ctxt->argumentCount() != 2)
        return ctxt->throwError(QLatin1String("Qt.darker(): Invalid arguments"));
    QVariant v = ctxt->argument(0).toVariant();
    QColor color;
    if (v.userType() == QVariant::Color)
        color = v.value<QColor>();
    else if (v.userType() == QVariant::String) {
        bool ok;
        color = QDeclarativeStringConverters::colorFromString(v.toString(), &ok);
        if (!ok)
            return engine->nullValue();
    } else
        return engine->nullValue();
    qsreal factor = 2.0;
    if (ctxt->argumentCount() == 2)
        factor = ctxt->argument(1).toNumber();
    color = color.darker(int(qRound(factor*100.)));
    return engine->toScriptValue(QVariant::fromValue(color));
}

QScriptValue QDeclarativeEnginePrivate::desktopOpenUrl(QScriptContext *ctxt, QScriptEngine *e)
{
    if(ctxt->argumentCount() < 1)
        return QScriptValue(e, false);
    bool ret = false;
#ifndef QT_NO_DESKTOPSERVICES
    ret = QDesktopServices::openUrl(QDeclarativeScriptEngine::get(e)->resolvedUrl(ctxt, QUrl(ctxt->argument(0).toString())));
#endif
    return QScriptValue(e, ret);
}

QScriptValue QDeclarativeEnginePrivate::fontFamilies(QScriptContext *ctxt, QScriptEngine *e)
{
    if(ctxt->argumentCount() != 0)
        return ctxt->throwError(QLatin1String("Qt.fontFamilies(): Invalid arguments"));

    QDeclarativeEnginePrivate *p = QDeclarativeEnginePrivate::get(e);
    QFontDatabase database;
    return p->scriptValueFromVariant(database.families());
}

QScriptValue QDeclarativeEnginePrivate::md5(QScriptContext *ctxt, QScriptEngine *)
{
    if (ctxt->argumentCount() != 1)
        return ctxt->throwError(QLatin1String("Qt.md5(): Invalid arguments"));

    QByteArray data = ctxt->argument(0).toString().toUtf8();
    QByteArray result = QCryptographicHash::hash(data, QCryptographicHash::Md5);

    return QScriptValue(QLatin1String(result.toHex()));
}

QScriptValue QDeclarativeEnginePrivate::btoa(QScriptContext *ctxt, QScriptEngine *)
{
    if (ctxt->argumentCount() != 1)
        return ctxt->throwError(QLatin1String("Qt.btoa(): Invalid arguments"));

    QByteArray data = ctxt->argument(0).toString().toUtf8();

    return QScriptValue(QLatin1String(data.toBase64()));
}

QScriptValue QDeclarativeEnginePrivate::atob(QScriptContext *ctxt, QScriptEngine *)
{
    if (ctxt->argumentCount() != 1)
        return ctxt->throwError(QLatin1String("Qt.atob(): Invalid arguments"));

    QByteArray data = ctxt->argument(0).toString().toUtf8();

    return QScriptValue(QLatin1String(QByteArray::fromBase64(data)));
}

QScriptValue QDeclarativeEnginePrivate::consoleLog(QScriptContext *ctxt, QScriptEngine *e)
{
    if(ctxt->argumentCount() < 1)
        return e->newVariant(QVariant(false));

    QByteArray msg;

    for (int i=0; i<ctxt->argumentCount(); ++i) {
        if (!msg.isEmpty()) msg += ' ';
        msg += ctxt->argument(i).toString().toLocal8Bit();
        // does not support firebug "%[a-z]" formatting, since firebug really
        // does just ignore the format letter, which makes it pointless.
    }

    qDebug("%s",msg.constData());

    return e->newVariant(QVariant(true));
}

void QDeclarativeEnginePrivate::sendQuit()
{
    Q_Q(QDeclarativeEngine);
    emit q->quit();
    if (q->receivers(SIGNAL(quit())) == 0) {
        qWarning("Signal QDeclarativeEngine::quit() emitted, but no receivers connected to handle it.");
    }
}

static void dumpwarning(const QDeclarativeError &error)
{
    qWarning().nospace() << qPrintable(error.toString());
}

static void dumpwarning(const QList<QDeclarativeError> &errors)
{
    for (int ii = 0; ii < errors.count(); ++ii)
        dumpwarning(errors.at(ii));
}

void QDeclarativeEnginePrivate::warning(const QDeclarativeError &error)
{
    Q_Q(QDeclarativeEngine);
    q->warnings(QList<QDeclarativeError>() << error);
    if (outputWarningsToStdErr)
        dumpwarning(error);
}

void QDeclarativeEnginePrivate::warning(const QList<QDeclarativeError> &errors)
{
    Q_Q(QDeclarativeEngine);
    q->warnings(errors);
    if (outputWarningsToStdErr)
        dumpwarning(errors);
}

void QDeclarativeEnginePrivate::warning(QDeclarativeEngine *engine, const QDeclarativeError &error)
{
    if (engine)
        QDeclarativeEnginePrivate::get(engine)->warning(error);
    else
        dumpwarning(error);
}

void QDeclarativeEnginePrivate::warning(QDeclarativeEngine *engine, const QList<QDeclarativeError> &error)
{
    if (engine)
        QDeclarativeEnginePrivate::get(engine)->warning(error);
    else
        dumpwarning(error);
}

void QDeclarativeEnginePrivate::warning(QDeclarativeEnginePrivate *engine, const QDeclarativeError &error)
{
    if (engine)
        engine->warning(error);
    else
        dumpwarning(error);
}

void QDeclarativeEnginePrivate::warning(QDeclarativeEnginePrivate *engine, const QList<QDeclarativeError> &error)
{
    if (engine)
        engine->warning(error);
    else
        dumpwarning(error);
}

QScriptValue QDeclarativeEnginePrivate::quit(QScriptContext * /*ctxt*/, QScriptEngine *e)
{
    QDeclarativeEnginePrivate *qe = get (e);
    qe->sendQuit();
    return QScriptValue();
}

QScriptValue QDeclarativeEnginePrivate::tint(QScriptContext *ctxt, QScriptEngine *engine)
{
    if(ctxt->argumentCount() != 2)
        return ctxt->throwError(QLatin1String("Qt.tint(): Invalid arguments"));
    //get color
    QVariant v = ctxt->argument(0).toVariant();
    QColor color;
    if (v.userType() == QVariant::Color)
        color = v.value<QColor>();
    else if (v.userType() == QVariant::String) {
        bool ok;
        color = QDeclarativeStringConverters::colorFromString(v.toString(), &ok);
        if (!ok)
            return engine->nullValue();
    } else
        return engine->nullValue();

    //get tint color
    v = ctxt->argument(1).toVariant();
    QColor tintColor;
    if (v.userType() == QVariant::Color)
        tintColor = v.value<QColor>();
    else if (v.userType() == QVariant::String) {
        bool ok;
        tintColor = QDeclarativeStringConverters::colorFromString(v.toString(), &ok);
        if (!ok)
            return engine->nullValue();
    } else
        return engine->nullValue();

    //tint
    QColor finalColor;
    int a = tintColor.alpha();
    if (a == 0xFF)
        finalColor = tintColor;
    else if (a == 0x00)
        finalColor = color;
    else {
        qreal a = tintColor.alphaF();
        qreal inv_a = 1.0 - a;

        finalColor.setRgbF(tintColor.redF() * a + color.redF() * inv_a,
                           tintColor.greenF() * a + color.greenF() * inv_a,
                           tintColor.blueF() * a + color.blueF() * inv_a,
                           a + inv_a * color.alphaF());
    }

    return engine->toScriptValue(QVariant::fromValue(finalColor));
}

QScriptValue QDeclarativeEnginePrivate::scriptValueFromVariant(const QVariant &val)
{
    if (val.userType() == qMetaTypeId<QDeclarativeListReference>()) {
        QDeclarativeListReferencePrivate *p =
            QDeclarativeListReferencePrivate::get((QDeclarativeListReference*)val.constData());
        if (p->object) {
            return listClass->newList(p->property, p->propertyType);
        } else {
            return scriptEngine.nullValue();
        }
    } else if (val.userType() == qMetaTypeId<QList<QObject *> >()) {
        const QList<QObject *> &list = *(QList<QObject *>*)val.constData();
        QScriptValue rv = scriptEngine.newArray(list.count());
        for (int ii = 0; ii < list.count(); ++ii) {
            QObject *object = list.at(ii);
            rv.setProperty(ii, objectClass->newQObject(object));
        }
        return rv;
    } else if (QDeclarativeValueType *vt = valueTypes[val.userType()]) {
        return valueTypeClass->newObject(val, vt);
    }

    bool objOk;
    QObject *obj = QDeclarativeMetaType::toQObject(val, &objOk);
    if (objOk) {
        return objectClass->newQObject(obj);
    } else {
        return scriptEngine.toScriptValue(val);
    }
}

QVariant QDeclarativeEnginePrivate::scriptValueToVariant(const QScriptValue &val, int hint)
{
    QScriptDeclarativeClass *dc = QScriptDeclarativeClass::scriptClass(val);
    if (dc == objectClass)
        return QVariant::fromValue(objectClass->toQObject(val));
    else if (dc == valueTypeClass)
        return valueTypeClass->toVariant(val);
    else if (dc == contextClass)
        return QVariant();

    // Convert to a QList<QObject*> only if val is an array and we were explicitly hinted
    if (hint == qMetaTypeId<QList<QObject *> >() && val.isArray()) {
        QList<QObject *> list;
        int length = val.property(QLatin1String("length")).toInt32();
        for (int ii = 0; ii < length; ++ii) {
            QScriptValue arrayItem = val.property(ii);
            QObject *d = arrayItem.toQObject();
            list << d;
        }
        return QVariant::fromValue(list);
    }

    return val.toVariant();
}

void QDeclarativeEngine::addImportPath(const QString& path)
{
    Q_D(QDeclarativeEngine);
    d->importDatabase.addImportPath(path);
}

QStringList QDeclarativeEngine::importPathList() const
{
    Q_D(const QDeclarativeEngine);
    return d->importDatabase.importPathList();
}

void QDeclarativeEngine::setImportPathList(const QStringList &paths)
{
    Q_D(QDeclarativeEngine);
    d->importDatabase.setImportPathList(paths);
}


void QDeclarativeEngine::addPluginPath(const QString& path)
{
    Q_D(QDeclarativeEngine);
    d->importDatabase.addPluginPath(path);
}


QStringList QDeclarativeEngine::pluginPathList() const
{
    Q_D(const QDeclarativeEngine);
    return d->importDatabase.pluginPathList();
}

void QDeclarativeEngine::setPluginPathList(const QStringList &paths)
{
    Q_D(QDeclarativeEngine);
    d->importDatabase.setPluginPathList(paths);
}


bool QDeclarativeEngine::importPlugin(const QString &filePath, const QString &uri, QString *errorString)
{
    Q_D(QDeclarativeEngine);
    return d->importDatabase.importPlugin(filePath, uri, errorString);
}

void QDeclarativeEngine::setOfflineStoragePath(const QString& dir)
{
    Q_D(QDeclarativeEngine);
    d->scriptEngine.offlineStoragePath = dir;
}

QString QDeclarativeEngine::offlineStoragePath() const
{
    Q_D(const QDeclarativeEngine);
    return d->scriptEngine.offlineStoragePath;
}

static void voidptr_destructor(void *v)
{
    void **ptr = (void **)v;
    delete ptr;
}

static void *voidptr_constructor(const void *v)
{
    if (!v) {
        return new void*;
    } else {
        return new void*(*(void **)v);
    }
}

QDeclarativePropertyCache *QDeclarativeEnginePrivate::createCache(const QMetaObject *mo)
{
    Q_Q(QDeclarativeEngine);

    if (!mo->superClass()) {
        QDeclarativePropertyCache *rv = new QDeclarativePropertyCache(q, mo);
        propertyCache.insert(mo, rv);
        return rv;
    } else {
        QDeclarativePropertyCache *super = cache(mo->superClass());
        QDeclarativePropertyCache *rv = super->copy();
        rv->append(q, mo);
        propertyCache.insert(mo, rv);
        return rv;
    }
}

QDeclarativePropertyCache *QDeclarativeEnginePrivate::createCache(QDeclarativeType *type, int minorVersion,
                                                                  QDeclarativeError &error)
{
    QList<QDeclarativeType *> types;

    int maxMinorVersion = 0;

    const QMetaObject *metaObject = type->metaObject();
    while (metaObject) {
        QDeclarativeType *t = QDeclarativeMetaType::qmlType(metaObject, type->module(),
                                                            type->majorVersion(), minorVersion);
        if (t) {
            maxMinorVersion = qMax(maxMinorVersion, t->minorVersion());
            types << t;
        } else {
            types << 0;
        }

        metaObject = metaObject->superClass();
    }

    if (QDeclarativePropertyCache *c = typePropertyCache.value(qMakePair(type, maxMinorVersion))) {
        c->addref();
        typePropertyCache.insert(qMakePair(type, minorVersion), c);
        return c;
    }

    QDeclarativePropertyCache *raw = cache(type->metaObject());

    bool hasCopied = false;

    for (int ii = 0; ii < types.count(); ++ii) {
        QDeclarativeType *currentType = types.at(ii);
        if (!currentType)
            continue;

        int rev = currentType->metaObjectRevision();
        int moIndex = types.count() - 1 - ii;

        if (raw->allowedRevisionCache[moIndex] != rev) {
            if (!hasCopied) {
                raw = raw->copy();
                hasCopied = true;
            }
            raw->allowedRevisionCache[moIndex] = rev;
        }
    }

    // Test revision compatibility - the basic rule is:
    //    * Anything that is excluded, cannot overload something that is not excluded *

    // Signals override:
    //    * other signals and methods of the same name.
    //    * properties named on<Signal Name>
    //    * automatic <property name>Changed notify signals

    // Methods override:
    //    * other methods of the same name

    // Properties override:
    //    * other elements of the same name

    bool overloadError = false;
    QString overloadName;

#if 0
    for (QDeclarativePropertyCache::StringCache::ConstIterator iter = raw->stringCache.begin();
         !overloadError && iter != raw->stringCache.end();
         ++iter) {

        QDeclarativePropertyCache::Data *d = *iter;
        if (raw->isAllowedInRevision(d))
            continue; // Not excluded - no problems

        // check that a regular "name" overload isn't happening
        QDeclarativePropertyCache::Data *current = d;
        while (!overloadError && current) {
            current = d->overrideData(current);
            if (current && raw->isAllowedInRevision(current))
                overloadError = true;
        }
    }
#endif

    if (overloadError) {
        if (hasCopied) raw->release();

        error.setDescription(QLatin1String("Type ") + QString::fromUtf8(type->qmlTypeName()) + QLatin1String(" ") + QString::number(type->majorVersion()) + QLatin1String(".") + QString::number(minorVersion) + QLatin1String(" contains an illegal property \"") + overloadName + QLatin1String("\".  This is an error in the type's implementation."));
        return 0;
    }

    if (!hasCopied) raw->addref();
    typePropertyCache.insert(qMakePair(type, minorVersion), raw);

    if (minorVersion != maxMinorVersion) {
        raw->addref();
        typePropertyCache.insert(qMakePair(type, maxMinorVersion), raw);
    }

    return raw;
}

void QDeclarativeEnginePrivate::registerCompositeType(QDeclarativeCompiledData *data)
{
    QByteArray name = data->root->className();

    QByteArray ptr = name + '*';
    QByteArray lst = "QDeclarativeListProperty<" + name + '>';

    int ptr_type = QMetaType::registerType(ptr.constData(), voidptr_destructor,
                                           voidptr_constructor);
    int lst_type = QMetaType::registerType(lst.constData(), voidptr_destructor,
                                           voidptr_constructor);

    m_qmlLists.insert(lst_type, ptr_type);
    m_compositeTypes.insert(ptr_type, data);
    data->addref();
}

bool QDeclarativeEnginePrivate::isList(int t) const
{
    return m_qmlLists.contains(t) || QDeclarativeMetaType::isList(t);
}

int QDeclarativeEnginePrivate::listType(int t) const
{
    QHash<int, int>::ConstIterator iter = m_qmlLists.find(t);
    if (iter != m_qmlLists.end())
        return *iter;
    else
        return QDeclarativeMetaType::listType(t);
}

bool QDeclarativeEnginePrivate::isQObject(int t)
{
    return m_compositeTypes.contains(t) || QDeclarativeMetaType::isQObject(t);
}

QObject *QDeclarativeEnginePrivate::toQObject(const QVariant &v, bool *ok) const
{
    int t = v.userType();
    if (t == QMetaType::QObjectStar || m_compositeTypes.contains(t)) {
        if (ok) *ok = true;
        return *(QObject **)(v.constData());
    } else {
        return QDeclarativeMetaType::toQObject(v, ok);
    }
}

QDeclarativeMetaType::TypeCategory QDeclarativeEnginePrivate::typeCategory(int t) const
{
    if (m_compositeTypes.contains(t))
        return QDeclarativeMetaType::Object;
    else if (m_qmlLists.contains(t))
        return QDeclarativeMetaType::List;
    else
        return QDeclarativeMetaType::typeCategory(t);
}

const QMetaObject *QDeclarativeEnginePrivate::rawMetaObjectForType(int t) const
{
    QHash<int, QDeclarativeCompiledData*>::ConstIterator iter = m_compositeTypes.find(t);
    if (iter != m_compositeTypes.end()) {
        return (*iter)->root;
    } else {
        QDeclarativeType *type = QDeclarativeMetaType::qmlType(t);
        return type?type->baseMetaObject():0;
    }
}

const QMetaObject *QDeclarativeEnginePrivate::metaObjectForType(int t) const
{
    QHash<int, QDeclarativeCompiledData*>::ConstIterator iter = m_compositeTypes.find(t);
    if (iter != m_compositeTypes.end()) {
        return (*iter)->root;
    } else {
        QDeclarativeType *type = QDeclarativeMetaType::qmlType(t);
        return type?type->metaObject():0;
    }
}

bool QDeclarative_isFileCaseCorrect(const QString &fileName)
{
#if defined(Q_OS_MAC) || defined(Q_OS_WIN32)
    QFileInfo info(fileName);

    QString absolute = info.absoluteFilePath();

#if defined(Q_OS_MAC)
    QString canonical = info.canonicalFilePath();
#elif defined(Q_OS_WIN32)
    wchar_t buffer[1024];

    DWORD rv = ::GetShortPathName((wchar_t*)absolute.utf16(), buffer, 1024);
    if (rv == 0 || rv >= 1024) return true;
    rv = ::GetLongPathName(buffer, buffer, 1024);
    if (rv == 0 || rv >= 1024) return true;

    QString canonical((QChar *)buffer);
#endif

    int absoluteLength = absolute.length();
    int canonicalLength = canonical.length();

    int length = qMin(absoluteLength, canonicalLength);
    for (int ii = 0; ii < length; ++ii) {
        const QChar &a = absolute.at(absoluteLength - 1 - ii);
        const QChar &c = canonical.at(canonicalLength - 1 - ii);

        if (a.toLower() != c.toLower())
            return true;
        if (a != c)
            return false;
    }
#else
    Q_UNUSED(fileName)
#endif
    return true;
}

QT_END_NAMESPACE