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Diffstat (limited to 'src/declarative/qml/qmlengine.cpp')
| -rw-r--r-- | src/declarative/qml/qmlengine.cpp | 1623 |
1 files changed, 1623 insertions, 0 deletions
diff --git a/src/declarative/qml/qmlengine.cpp b/src/declarative/qml/qmlengine.cpp new file mode 100644 index 0000000..ea0c054 --- /dev/null +++ b/src/declarative/qml/qmlengine.cpp @@ -0,0 +1,1623 @@ +/**************************************************************************** +** +** 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 "qmlengine_p.h" +#include "qmlengine.h" + +#include "qmlcontext_p.h" +#include "qmlcompiler_p.h" +#include "qmlglobalscriptclass_p.h" +#include "qml.h" +#include "qmlcontext.h" +#include "qmlexpression.h" +#include "qmlcomponent.h" +#include "qmlmetaproperty_p.h" +#include "qmlmoduleplugin.h" +#include "qmlbinding_p.h" +#include "qmlvme_p.h" +#include "qmlenginedebug_p.h" +#include "qmlstringconverters_p.h" +#include "qmlxmlhttprequest_p.h" +#include "qmlsqldatabase_p.h" +#include "qmltypenamescriptclass_p.h" +#include "qmllistscriptclass_p.h" +#include "qmlscriptstring.h" +#include "qmlglobal_p.h" +#include "qmlworkerscript_p.h" +#include "qmlcomponent_p.h" +#include "qmlscriptclass_p.h" +#include "qmlnetworkaccessmanagerfactory.h" + +#include <qfxperf_p_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 <QtCore/qlibraryinfo.h> +#include <QtCore/qthreadstorage.h> +#include <QtCore/qthread.h> +#include <QtCore/qcoreapplication.h> +#include <QtCore/qdir.h> +#include <QtGui/qcolor.h> +#include <QtGui/qvector3d.h> +#include <QtGui/qsound.h> +#include <QGraphicsObject> +#include <QtCore/qcryptographichash.h> + +#include <private/qfactoryloader_p.h> +#include <private/qobject_p.h> +#include <private/qscriptdeclarativeclass_p.h> + +#ifdef Q_OS_WIN // for %APPDATA% +#include <qt_windows.h> +#include <qlibrary.h> + +#define CSIDL_APPDATA 0x001a // <username>\Application Data +#endif + +Q_DECLARE_METATYPE(QmlMetaProperty) +Q_DECLARE_METATYPE(QList<QObject *>); + +QT_BEGIN_NAMESPACE + +DEFINE_BOOL_CONFIG_OPTION(qmlImportTrace, QML_IMPORT_TRACE) + +QML_DEFINE_TYPE(Qt,4,6,QtObject,QObject) + +struct StaticQtMetaObject : public QObject +{ + static const QMetaObject *get() + { return &static_cast<StaticQtMetaObject*> (0)->staticQtMetaObject; } +}; + +QmlEnginePrivate::QmlEnginePrivate(QmlEngine *e) +: captureProperties(false), rootContext(0), currentExpression(0), isDebugging(false), + contextClass(0), sharedContext(0), sharedScope(0), objectClass(0), valueTypeClass(0), + globalClass(0), cleanup(0), erroredBindings(0), inProgressCreations(0), + scriptEngine(this), workerScriptEngine(0), componentAttacheds(0), inBeginCreate(false), + networkAccessManager(0), networkAccessManagerFactory(0), + typeManager(e), uniqueId(1) +{ + globalClass = new QmlGlobalScriptClass(&scriptEngine); + fileImportPath.append(QLibraryInfo::location(QLibraryInfo::DataPath)+QDir::separator()+QLatin1String("qml")); +} + +QUrl QmlScriptEngine::resolvedUrl(QScriptContext *context, const QUrl& url) +{ + if (p) { + QmlContext *ctxt = QmlEnginePrivate::get(this)->getContext(context); + Q_ASSERT(ctxt); + return ctxt->resolvedUrl(url); + } + return baseUrl.resolved(url); +} + +QmlScriptEngine::QmlScriptEngine(QmlEnginePrivate *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); + + offlineStoragePath = QDesktopServices::storageLocation(QDesktopServices::DataLocation).replace(QLatin1Char('/'), QDir::separator()) + + QDir::separator() + QLatin1String("QML") + + QDir::separator() + QLatin1String("OfflineStorage"); + + + qt_add_qmlxmlhttprequest(this); + 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 + qtObject.setProperty(QLatin1String("rgba"), newFunction(QmlEnginePrivate::rgba, 4)); + qtObject.setProperty(QLatin1String("hsla"), newFunction(QmlEnginePrivate::hsla, 4)); + qtObject.setProperty(QLatin1String("rect"), newFunction(QmlEnginePrivate::rect, 4)); + qtObject.setProperty(QLatin1String("point"), newFunction(QmlEnginePrivate::point, 2)); + qtObject.setProperty(QLatin1String("size"), newFunction(QmlEnginePrivate::size, 2)); + qtObject.setProperty(QLatin1String("vector3d"), newFunction(QmlEnginePrivate::vector, 3)); + + if (mainthread) { + //color helpers + qtObject.setProperty(QLatin1String("lighter"), newFunction(QmlEnginePrivate::lighter, 1)); + qtObject.setProperty(QLatin1String("darker"), newFunction(QmlEnginePrivate::darker, 1)); + qtObject.setProperty(QLatin1String("tint"), newFunction(QmlEnginePrivate::tint, 2)); + } + + //misc methods + qtObject.setProperty(QLatin1String("closestAngle"), newFunction(QmlEnginePrivate::closestAngle, 2)); + qtObject.setProperty(QLatin1String("playSound"), newFunction(QmlEnginePrivate::playSound, 1)); + qtObject.setProperty(QLatin1String("openUrlExternally"),newFunction(QmlEnginePrivate::desktopOpenUrl, 1)); + qtObject.setProperty(QLatin1String("md5"),newFunction(QmlEnginePrivate::md5, 1)); + qtObject.setProperty(QLatin1String("btoa"),newFunction(QmlEnginePrivate::btoa, 1)); + qtObject.setProperty(QLatin1String("atob"),newFunction(QmlEnginePrivate::atob, 1)); + qtObject.setProperty(QLatin1String("quit"), newFunction(QmlEnginePrivate::quit, 0)); + qtObject.setProperty(QLatin1String("resolvedUrl"),newFunction(QmlScriptEngine::resolvedUrl, 1)); + + //firebug/webkit compat + QScriptValue consoleObject = newObject(); + consoleObject.setProperty(QLatin1String("log"),newFunction(QmlEnginePrivate::consoleLog, 1)); + consoleObject.setProperty(QLatin1String("debug"),newFunction(QmlEnginePrivate::consoleLog, 1)); + globalObject().setProperty(QLatin1String("console"), consoleObject); + + if (mainthread) { + globalObject().setProperty(QLatin1String("createQmlObject"), + newFunction(QmlEnginePrivate::createQmlObject, 1)); + globalObject().setProperty(QLatin1String("createComponent"), + newFunction(QmlEnginePrivate::createComponent, 1)); + } + + // translation functions need to be installed + // before the global script class is constructed (QTBUG-6437) + installTranslatorFunctions(); +} + +QmlScriptEngine::~QmlScriptEngine() +{ + delete sqlQueryClass; + delete nodeListClass; + delete namedNodeMapClass; +} + +QScriptValue QmlScriptEngine::resolvedUrl(QScriptContext *ctxt, QScriptEngine *engine) +{ + QString arg = ctxt->argument(0).toString(); + QUrl r = QmlScriptEngine::get(engine)->resolvedUrl(ctxt,QUrl(arg)); + return QScriptValue(r.toString()); +} + +QNetworkAccessManager *QmlScriptEngine::networkAccessManager() +{ + return p->getNetworkAccessManager(); +} + +QmlEnginePrivate::~QmlEnginePrivate() +{ + while (cleanup) { + QmlCleanup *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(int ii = 0; ii < bindValues.count(); ++ii) + clear(bindValues[ii]); + for(int ii = 0; ii < parserStatus.count(); ++ii) + clear(parserStatus[ii]); + for(QHash<int, QmlCompiledData*>::ConstIterator iter = m_compositeTypes.constBegin(); iter != m_compositeTypes.constEnd(); ++iter) + (*iter)->release(); + for(QHash<const QMetaObject *, QmlPropertyCache *>::Iterator iter = propertyCache.begin(); iter != propertyCache.end(); ++iter) + (*iter)->release(); + +} + +void QmlEnginePrivate::clear(SimpleList<QmlAbstractBinding> &bvs) +{ + bvs.clear(); +} + +void QmlEnginePrivate::clear(SimpleList<QmlParserStatus> &pss) +{ + for (int ii = 0; ii < pss.count; ++ii) { + QmlParserStatus *ps = pss.at(ii); + if(ps) + ps->d = 0; + } + pss.clear(); +} + +Q_GLOBAL_STATIC(QmlEngineDebugServer, qmlEngineDebugServer); + +void QmlEnginePrivate::init() +{ + Q_Q(QmlEngine); + qRegisterMetaType<QVariant>("QVariant"); + qRegisterMetaType<QmlScriptString>("QmlScriptString"); + qRegisterMetaType<QScriptValue>("QScriptValue"); + + contextClass = new QmlContextScriptClass(q); + objectClass = new QmlObjectScriptClass(q); + valueTypeClass = new QmlValueTypeScriptClass(q); + typeNameClass = new QmlTypeNameScriptClass(q); + listClass = new QmlListScriptClass(q); + rootContext = new QmlContext(q,true); + + if (QCoreApplication::instance()->thread() == q->thread() && + QmlEngineDebugServer::isDebuggingEnabled()) { + qmlEngineDebugServer(); + isDebugging = true; + QmlEngineDebugServer::addEngine(q); + + qmlEngineDebugServer()->waitForClients(); + } +} + +QmlWorkerScriptEngine *QmlEnginePrivate::getWorkerScriptEngine() +{ + Q_Q(QmlEngine); + if (!workerScriptEngine) + workerScriptEngine = new QmlWorkerScriptEngine(q); + return workerScriptEngine; +} + +/*! + \class QmlEngine + \brief The QmlEngine class provides an environment for instantiating QML components. + \mainclass + + Each QML component is instantiated in a QmlContext. QmlContext's are + essential for passing data to QML components. In QML, contexts are arranged + hierarchically and this hierarchy is managed by the QmlEngine. + + Prior to creating any QML components, an application must have created a + QmlEngine to gain access to a QML context. The following example shows how + to create a simple Text item. + + \code + QmlEngine engine; + QmlComponent component(&engine); + component.setData("import Qt 4.6\nText { text: \"Hello world!\" }", QUrl()); + QmlGraphicsItem *item = qobject_cast<QmlGraphicsItem *>(component.create()); + + //add item to view, etc + ... + \endcode + + In this case, the Text item will be created in the engine's + \l {QmlEngine::rootContext()}{root context}. + + \sa QmlComponent QmlContext +*/ + +/*! + Create a new QmlEngine with the given \a parent. +*/ +QmlEngine::QmlEngine(QObject *parent) +: QObject(*new QmlEnginePrivate(this), parent) +{ + Q_D(QmlEngine); + d->init(); +} + +/*! + Destroys the QmlEngine. + + Any QmlContext's created on this engine will be invalidated, but not + destroyed (unless they are parented to the QmlEngine object). +*/ +QmlEngine::~QmlEngine() +{ + Q_D(QmlEngine); + if (d->isDebugging) + QmlEngineDebugServer::remEngine(this); +} + +/*! + Clears the engine's internal component cache. + + Normally the QmlEngine caches components loaded from qml files. This method + clears this cache and forces the component to be reloaded. + */ +void QmlEngine::clearComponentCache() +{ + Q_D(QmlEngine); + d->typeManager.clearCache(); +} + +/*! + Returns the engine's root context. + + The root context is automatically created by the QmlEngine. Data that + should be available to all QML component instances instantiated by the + engine should be put in the root context. + + Additional data that should only be available to a subset of component + instances should be added to sub-contexts parented to the root context. +*/ +QmlContext *QmlEngine::rootContext() +{ + Q_D(QmlEngine); + return d->rootContext; +} + +/*! + Sets the \a factory to use for creating QNetworkAccessManager(s). + + QNetworkAccessManager is used for all network access by QML. + By implementing a factory it is possible to create custom + QNetworkAccessManager with specialized caching, proxy and + cookie support. +*/ +void QmlEngine::setNetworkAccessManagerFactory(QmlNetworkAccessManagerFactory *factory) +{ + Q_D(QmlEngine); + d->networkAccessManagerFactory = factory; +} + +/*! + Returns the current QmlNetworkAccessManagerFactory. + + \sa setNetworkAccessManagerFactory() +*/ +QmlNetworkAccessManagerFactory *QmlEngine::networkAccessManagerFactory() const +{ + Q_D(const QmlEngine); + return d->networkAccessManagerFactory; +} + +QNetworkAccessManager *QmlEnginePrivate::getNetworkAccessManager() const +{ + Q_Q(const QmlEngine); + + if (!networkAccessManager) { + if (networkAccessManagerFactory) { + networkAccessManager = networkAccessManagerFactory->create(const_cast<QmlEngine*>(q)); + } else { + networkAccessManager = new QNetworkAccessManager(const_cast<QmlEngine*>(q)); + } + } + return networkAccessManager; +} + +/*! + Returns a common QNetworkAccessManager which can be used by any QML element + instantiated by this engine. + + If a QmlNetworkAccessManagerFactory has been set and a QNetworkAccessManager + has not yet been created, the QmlNetworkAccessManagerFactory will be used + to create the QNetworkAccessManager; otherwise the returned QNetworkAccessManager + will have no proxy or cache set. + + \sa setNetworkAccessManagerFactory() +*/ +QNetworkAccessManager *QmlEngine::networkAccessManager() const +{ + Q_D(const QmlEngine); + return d->getNetworkAccessManager(); +} + +/*! + Return the base URL for this engine. The base URL is only used to resolve + components when a relative URL is passed to the QmlComponent constructor. + + If a base URL has not been explicitly set, this method returns the + application's current working directory. + + \sa setBaseUrl() +*/ +QUrl QmlEngine::baseUrl() const +{ + Q_D(const QmlEngine); + if (d->baseUrl.isEmpty()) { + return QUrl::fromLocalFile(QDir::currentPath() + QDir::separator()); + } else { + return d->baseUrl; + } +} + +/*! + Set the base URL for this engine to \a url. + + \sa baseUrl() +*/ +void QmlEngine::setBaseUrl(const QUrl &url) +{ + Q_D(QmlEngine); + d->baseUrl = url; +} + +/*! + Returns the QmlContext for the \a object, or 0 if no context has been set. + + When the QmlEngine instantiates a QObject, the context is set automatically. + */ +QmlContext *QmlEngine::contextForObject(const QObject *object) +{ + if(!object) + return 0; + + QObjectPrivate *priv = QObjectPrivate::get(const_cast<QObject *>(object)); + + QmlDeclarativeData *data = + static_cast<QmlDeclarativeData *>(priv->declarativeData); + + if (!data) + return 0; + else if (data->outerContext) + return data->outerContext; + else + return data->context; +} + +/*! + Sets the QmlContext for the \a object to \a context. + If the \a object already has a context, a warning is + output, but the context is not changed. + + When the QmlEngine instantiates a QObject, the context is set automatically. + */ +void QmlEngine::setContextForObject(QObject *object, QmlContext *context) +{ + if (!object || !context) + return; + + QmlDeclarativeData *data = QmlDeclarativeData::get(object, true); + if (data->context) { + qWarning("QmlEngine::setContextForObject(): Object already has a QmlContext"); + return; + } + + data->context = context; + data->nextContextObject = context->d_func()->contextObjects; + data->prevContextObject = &context->d_func()->contextObjects; +} + +void qmlExecuteDeferred(QObject *object) +{ + QmlDeclarativeData *data = QmlDeclarativeData::get(object); + + if (data && data->deferredComponent) { + + QmlEnginePrivate *ep = QmlEnginePrivate::get(data->context->engine()); + + QmlComponentPrivate::ConstructionState state; + QmlComponentPrivate::beginDeferred(data->context, ep, object, &state); + + data->deferredComponent->release(); + data->deferredComponent = 0; + + QmlComponentPrivate::complete(ep, &state); + + if (!state.errors.isEmpty()) + qWarning() << state.errors; + + } +} + +QmlContext *qmlContext(const QObject *obj) +{ + return QmlEngine::contextForObject(obj); +} + +QmlEngine *qmlEngine(const QObject *obj) +{ + QmlContext *context = QmlEngine::contextForObject(obj); + return context?context->engine():0; +} + +QObject *qmlAttachedPropertiesObjectById(int id, const QObject *object, bool create) +{ + QmlDeclarativeData *data = QmlDeclarativeData::get(object); + if (!data) + return 0; // Attached properties are only on objects created by QML + + QObject *rv = data->attachedProperties?data->attachedProperties->value(id):0; + if (rv || !create) + return rv; + + QmlAttachedPropertiesFunc pf = QmlMetaType::attachedPropertiesFuncById(id); + if (!pf) + return 0; + + rv = pf(const_cast<QObject *>(object)); + + if (rv) { + if (!data->attachedProperties) + data->attachedProperties = new QHash<int, QObject *>(); + data->attachedProperties->insert(id, rv); + } + + return rv; +} + +void QmlDeclarativeData::destroyed(QObject *object) +{ + if (deferredComponent) + deferredComponent->release(); + if (attachedProperties) + delete attachedProperties; + + if (nextContextObject) + nextContextObject->prevContextObject = prevContextObject; + if (prevContextObject) + *prevContextObject = nextContextObject; + + QmlAbstractBinding *binding = bindings; + while (binding) { + QmlAbstractBinding *next = binding->m_nextBinding; + binding->m_prevBinding = 0; + binding->m_nextBinding = 0; + binding->destroy(); + binding = next; + } + + if (bindingBits) + free(bindingBits); + + if (propertyCache) + propertyCache->release(); + + QmlGuard<QObject> *guard = guards; + while (guard) { + QmlGuard<QObject> *g = guard; + guard = guard->next; + g->o = 0; + g->prev = 0; + g->next = 0; + g->objectDestroyed(object); + } + + delete this; +} + +bool QmlDeclarativeData::hasBindingBit(int bit) const +{ + if (bindingBitsSize > bit) + return bindingBits[bit / 32] & (1 << (bit % 32)); + else + return false; +} + +void QmlDeclarativeData::clearBindingBit(int bit) +{ + if (bindingBitsSize > bit) + bindingBits[bit / 32] &= ~(1 << (bit % 32)); +} + +void QmlDeclarativeData::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 *)realloc(bindingBits, + arraySize * sizeof(quint32)); + + memset(bindingBits + oldArraySize, + 0x00, + sizeof(quint32) * (arraySize - oldArraySize)); + + bindingBitsSize = arraySize * 32; + } + + bindingBits[bit / 32] |= (1 << (bit % 32)); +} + +/*! + Creates a QScriptValue allowing you to use \a object in QML script. + \a engine is the QmlEngine it is to be created in. + + The QScriptValue returned is a QtScript Object, not a QtScript QObject, due + to the special needs of QML requiring more functionality than a standard + QtScript QObject. +*/ +QScriptValue QmlEnginePrivate::qmlScriptObject(QObject* object, + QmlEngine* engine) +{ + QmlEnginePrivate *enginePriv = QmlEnginePrivate::get(engine); + return enginePriv->objectClass->newQObject(object); +} + +/*! + Returns the QmlContext for the executing QScript \a ctxt. +*/ +QmlContext *QmlEnginePrivate::getContext(QScriptContext *ctxt) +{ + QScriptValue scopeNode = QScriptDeclarativeClass::scopeChainValue(ctxt, -3); + Q_ASSERT(scopeNode.isValid()); + Q_ASSERT(QScriptDeclarativeClass::scriptClass(scopeNode) == contextClass); + return contextClass->contextFromValue(scopeNode); +} + +QScriptValue QmlEnginePrivate::createComponent(QScriptContext *ctxt, + QScriptEngine *engine) +{ + QmlEnginePrivate *activeEnginePriv = + static_cast<QmlScriptEngine*>(engine)->p; + QmlEngine* activeEngine = activeEnginePriv->q_func(); + + QmlContext* context = activeEnginePriv->getContext(ctxt); + Q_ASSERT(context); + if(ctxt->argumentCount() != 1) { + return engine->nullValue(); + }else{ + QString arg = ctxt->argument(0).toString(); + if (arg.isEmpty()) + return engine->nullValue(); + QUrl url = QUrl(context->resolvedUrl(QUrl(arg))); + QmlComponent *c = new QmlComponent(activeEngine, url, activeEngine); + c->setCreationContext(context); + return activeEnginePriv->objectClass->newQObject(c, qMetaTypeId<QmlComponent*>()); + } +} + +QScriptValue QmlEnginePrivate::createQmlObject(QScriptContext *ctxt, QScriptEngine *engine) +{ + QmlEnginePrivate *activeEnginePriv = + static_cast<QmlScriptEngine*>(engine)->p; + QmlEngine* activeEngine = activeEnginePriv->q_func(); + + if(ctxt->argumentCount() < 2 || ctxt->argumentCount() > 3) + return engine->nullValue(); + + QmlContext* 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 engine->nullValue(); + + QmlComponent component(activeEngine); + component.setData(qml.toUtf8(), url); + + if(component.isError()) { + QList<QmlError> errors = component.errors(); + qWarning().nospace() << "QmlEngine::createQmlObject():"; + foreach (const QmlError &error, errors) + qWarning().nospace() << " " << error; + + return engine->nullValue(); + } + + if (!component.isReady()) { + qWarning().nospace() << "QmlEngine::createQmlObject(): Component is not ready"; + + return engine->nullValue(); + } + + QObject *obj = component.create(context); + + if(component.isError()) { + QList<QmlError> errors = component.errors(); + qWarning().nospace() << "QmlEngine::createQmlObject():"; + foreach (const QmlError &error, errors) + qWarning().nospace() << " " << error; + + return engine->nullValue(); + } + + Q_ASSERT(obj); + + obj->setParent(parentArg); + QGraphicsObject* gobj = qobject_cast<QGraphicsObject*>(obj); + QGraphicsObject* gparent = qobject_cast<QGraphicsObject*>(parentArg); + if(gobj && gparent) + gobj->setParentItem(gparent); + + return qmlScriptObject(obj, activeEngine); +} + +QScriptValue QmlEnginePrivate::vector(QScriptContext *ctxt, QScriptEngine *engine) +{ + if(ctxt->argumentCount() != 3) + return engine->nullValue(); + qsreal x = ctxt->argument(0).toNumber(); + qsreal y = ctxt->argument(1).toNumber(); + qsreal z = ctxt->argument(2).toNumber(); + return engine->newVariant(qVariantFromValue(QVector3D(x, y, z))); +} + +QScriptValue QmlEnginePrivate::rgba(QScriptContext *ctxt, QScriptEngine *engine) +{ + int argCount = ctxt->argumentCount(); + if(argCount < 3 || argCount > 4) + return engine->nullValue(); + 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 || r > 1 || g < 0 || g > 1 || b < 0 || b > 1 || a < 0 || a > 1) + return engine->nullValue(); + + return qScriptValueFromValue(engine, qVariantFromValue(QColor::fromRgbF(r, g, b, a))); +} + +QScriptValue QmlEnginePrivate::hsla(QScriptContext *ctxt, QScriptEngine *engine) +{ + int argCount = ctxt->argumentCount(); + if(argCount < 3 || argCount > 4) + return engine->nullValue(); + 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 || h > 1 || s < 0 || s > 1 || l < 0 || l > 1 || a < 0 || a > 1) + return engine->nullValue(); + + return qScriptValueFromValue(engine, qVariantFromValue(QColor::fromHslF(h, s, l, a))); +} + +QScriptValue QmlEnginePrivate::rect(QScriptContext *ctxt, QScriptEngine *engine) +{ + if(ctxt->argumentCount() != 4) + return engine->nullValue(); + + qsreal x = ctxt->argument(0).toNumber(); + qsreal y = ctxt->argument(1).toNumber(); + qsreal w = ctxt->argument(2).toNumber(); + qsreal h = ctxt->argument(3).toNumber(); + + if (w < 0 || h < 0) + return engine->nullValue(); + + return qScriptValueFromValue(engine, qVariantFromValue(QRectF(x, y, w, h))); +} + +QScriptValue QmlEnginePrivate::point(QScriptContext *ctxt, QScriptEngine *engine) +{ + if(ctxt->argumentCount() != 2) + return engine->nullValue(); + qsreal x = ctxt->argument(0).toNumber(); + qsreal y = ctxt->argument(1).toNumber(); + return qScriptValueFromValue(engine, qVariantFromValue(QPointF(x, y))); +} + +QScriptValue QmlEnginePrivate::size(QScriptContext *ctxt, QScriptEngine *engine) +{ + if(ctxt->argumentCount() != 2) + return engine->nullValue(); + qsreal w = ctxt->argument(0).toNumber(); + qsreal h = ctxt->argument(1).toNumber(); + return qScriptValueFromValue(engine, qVariantFromValue(QSizeF(w, h))); +} + +QScriptValue QmlEnginePrivate::lighter(QScriptContext *ctxt, QScriptEngine *engine) +{ + if(ctxt->argumentCount() != 1) + return engine->nullValue(); + 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 = QmlStringConverters::colorFromString(v.toString(), &ok); + if (!ok) + return engine->nullValue(); + } else + return engine->nullValue(); + color = color.lighter(); + return qScriptValueFromValue(engine, qVariantFromValue(color)); +} + +QScriptValue QmlEnginePrivate::darker(QScriptContext *ctxt, QScriptEngine *engine) +{ + if(ctxt->argumentCount() != 1) + return engine->nullValue(); + 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 = QmlStringConverters::colorFromString(v.toString(), &ok); + if (!ok) + return engine->nullValue(); + } else + return engine->nullValue(); + color = color.darker(); + return qScriptValueFromValue(engine, qVariantFromValue(color)); +} + +QScriptValue QmlEnginePrivate::playSound(QScriptContext *ctxt, QScriptEngine *engine) +{ + if (ctxt->argumentCount() != 1) + return engine->undefinedValue(); + + QUrl url(ctxt->argument(0).toString()); + + QmlEnginePrivate *enginePriv = QmlEnginePrivate::get(engine); + if (url.isRelative()) { + QmlContext *context = enginePriv->getContext(ctxt); + if (!context) + return engine->undefinedValue(); + + url = context->resolvedUrl(url); + } + + if (url.scheme() == QLatin1String("file")) { + + QSound::play(url.toLocalFile()); + + } + return engine->undefinedValue(); +} + +QScriptValue QmlEnginePrivate::desktopOpenUrl(QScriptContext *ctxt, QScriptEngine *e) +{ + if(ctxt->argumentCount() < 1) + return e->newVariant(QVariant(false)); + bool ret = QDesktopServices::openUrl(QUrl(ctxt->argument(0).toString())); + return e->newVariant(QVariant(ret)); +} + +QScriptValue QmlEnginePrivate::md5(QScriptContext *ctxt, QScriptEngine *) +{ + QByteArray data; + + if (ctxt->argumentCount() >= 1) + data = ctxt->argument(0).toString().toUtf8(); + + QByteArray result = QCryptographicHash::hash(data, QCryptographicHash::Md5); + + return QScriptValue(QLatin1String(result.toHex())); +} + +QScriptValue QmlEnginePrivate::btoa(QScriptContext *ctxt, QScriptEngine *) +{ + QByteArray data; + + if (ctxt->argumentCount() >= 1) + data = ctxt->argument(0).toString().toUtf8(); + + return QScriptValue(QLatin1String(data.toBase64())); +} + +QScriptValue QmlEnginePrivate::atob(QScriptContext *ctxt, QScriptEngine *) +{ + QByteArray data; + + if (ctxt->argumentCount() >= 1) + data = ctxt->argument(0).toString().toUtf8(); + + return QScriptValue(QLatin1String(QByteArray::fromBase64(data))); +} + +QScriptValue QmlEnginePrivate::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 QmlEnginePrivate::sendQuit () +{ + Q_Q(QmlEngine); + emit q->quit (); +} + +QScriptValue QmlEnginePrivate::quit(QScriptContext * /*ctxt*/, QScriptEngine *e) +{ + QmlEnginePrivate *qe = get (e); + qe->sendQuit (); + return QScriptValue(); +} + +QScriptValue QmlEnginePrivate::closestAngle(QScriptContext *ctxt, QScriptEngine *e) +{ + if(ctxt->argumentCount() < 2) + return e->newVariant(QVariant(0.0)); + qreal a = ctxt->argument(0).toNumber(); + qreal b = ctxt->argument(1).toNumber(); + qreal ret = b; + qreal diff = b-a; + while(diff > 180.0){ + ret -= 360.0; + diff -= 360.0; + } + while(diff < -180.0){ + ret += 360.0; + diff += 360.0; + } + return e->newVariant(QVariant(ret)); +} + +QScriptValue QmlEnginePrivate::tint(QScriptContext *ctxt, QScriptEngine *engine) +{ + if(ctxt->argumentCount() != 2) + return engine->nullValue(); + //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 = QmlStringConverters::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 = QmlStringConverters::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 { + uint src = tintColor.rgba(); + uint dest = color.rgba(); + + uint res = (((a * (src & 0xFF00FF)) + + ((0xFF - a) * (dest & 0xFF00FF))) >> 8) & 0xFF00FF; + res |= (((a * ((src >> 8) & 0xFF00FF)) + + ((0xFF - a) * ((dest >> 8) & 0xFF00FF)))) & 0xFF00FF00; + if ((src & 0xFF000000) == 0xFF000000) + res |= 0xFF000000; + + finalColor = QColor::fromRgba(res); + } + + return qScriptValueFromValue(engine, qVariantFromValue(finalColor)); +} + + +QScriptValue QmlEnginePrivate::scriptValueFromVariant(const QVariant &val) +{ + if (QmlMetaType::isObject(val.userType())) { + QObject *rv = *(QObject **)val.constData(); + return objectClass->newQObject(rv); + } else { + return qScriptValueFromValue(&scriptEngine, val); + } +} + +QVariant QmlEnginePrivate::scriptValueToVariant(const QScriptValue &val) +{ + QScriptDeclarativeClass *dc = QScriptDeclarativeClass::scriptClass(val); + if (dc == objectClass) + return QVariant::fromValue(objectClass->toQObject(val)); + else if (dc == contextClass) + return QVariant(); + + QScriptDeclarativeClass *sc = QScriptDeclarativeClass::scriptClass(val); + if (!sc) { + return val.toVariant(); + } else if (sc == valueTypeClass) { + return valueTypeClass->toVariant(val); + } else { + return QVariant(); + } +} + +QmlScriptClass::QmlScriptClass(QScriptEngine *engine) +: QScriptDeclarativeClass(engine) +{ +} + +QVariant QmlScriptClass::toVariant(QmlEngine *engine, const QScriptValue &val) +{ + QmlEnginePrivate *ep = + static_cast<QmlEnginePrivate *>(QObjectPrivate::get(engine)); + + return ep->scriptValueToVariant(val); +} + +// XXX this beyonds in QUrl::toLocalFile() +static QString toLocalFileOrQrc(const QUrl& url) +{ + QString r = url.toLocalFile(); + if (r.isEmpty() && url.scheme() == QLatin1String("qrc")) + r = QLatin1Char(':') + url.path(); + return r; +} + +///////////////////////////////////////////////////////////// +struct QmlEnginePrivate::ImportedNamespace { + QStringList uris; + QStringList urls; + QList<int> majversions; + QList<int> minversions; + QList<bool> isLibrary; + QList<bool> isBuiltin; // Types provided by C++ code (including plugins) + QList<QString> qmlDirContent; + + bool find(const QByteArray& type, int *vmajor, int *vminor, QmlType** type_return, QUrl* url_return) const + { + for (int i=0; i<urls.count(); ++i) { + int vmaj = majversions.at(i); + int vmin = minversions.at(i); + + if (isBuiltin.at(i)) { + QByteArray qt = uris.at(i).toUtf8(); + qt += '/'; + qt += type; + if (qmlImportTrace()) + qDebug() << "Look in" << qt; + QmlType *t = QmlMetaType::qmlType(qt,vmaj,vmin); + if (vmajor) *vmajor = vmaj; + if (vminor) *vminor = vmin; + if (t) { + if (qmlImportTrace()) + qDebug() << "Found" << qt; + if (type_return) + *type_return = t; + return true; + } + } + QUrl url = QUrl(urls.at(i) + QLatin1Char('/') + QString::fromUtf8(type) + QLatin1String(".qml")); + QString qmldircontent = qmlDirContent.at(i); + if (vmaj>=0 || !qmldircontent.isEmpty()) { + // Check version file - XXX cache these in QmlEngine! + if (qmldircontent.isEmpty()) { + QFile qmldir(toLocalFileOrQrc(QUrl(urls.at(i)+QLatin1String("/qmldir")))); + if (qmldir.open(QIODevice::ReadOnly)) { + qmldircontent = QString::fromUtf8(qmldir.readAll()); + } + } + QString typespace = QString::fromUtf8(type)+QLatin1Char(' '); + QStringList lines = qmldircontent.split(QLatin1Char('\n')); + foreach (QString line, lines) { + if (line.isEmpty() || line.at(0) == QLatin1Char('#')) + continue; + if (line.startsWith(typespace)) { + int space1 = line.indexOf(QLatin1Char(' ')); + int space2 = space1 >=0 ? line.indexOf(QLatin1Char(' '),space1+1) : -1; + QString mapversions = line.mid(space1+1,space2<0?line.length()-space1-1:space2-space1-1); + int dot = mapversions.indexOf(QLatin1Char('.')); + int mapvmaj = mapversions.left(dot).toInt(); + if (mapvmaj<=vmaj) { + if (mapvmaj<vmaj || vmin >= mapversions.mid(dot+1).toInt()) { + QStringRef mapfile = space2<0 ? QStringRef() : line.midRef(space2+1,line.length()-space2-1); + if (url_return) + *url_return = url.resolved(QUrl(mapfile.toString())); + return true; + } + } + } + } + } else { + // XXX search non-files too! (eg. zip files, see QT-524) + QFileInfo f(toLocalFileOrQrc(url)); + if (f.exists()) { + if (url_return) + *url_return = url; + return true; + } + } + } + return false; + } +}; + +Q_GLOBAL_STATIC_WITH_ARGS(QFactoryLoader, loader, + (QmlModuleFactoryInterface_iid, QLatin1String("/qmlmodules"))) + +class QmlImportsPrivate { +public: + QmlImportsPrivate() : ref(1) + { + } + + ~QmlImportsPrivate() + { + foreach (QmlEnginePrivate::ImportedNamespace* s, set.values()) + delete s; + } + + bool add(const QUrl& base, const QString& qmldircontent, const QString& uri, const QString& prefix, int vmaj, int vmin, QmlScriptParser::Import::Type importType, const QStringList& importPath) + { + QmlEnginePrivate::ImportedNamespace *s; + if (prefix.isEmpty()) { + s = &unqualifiedset; + } else { + s = set.value(prefix); + if (!s) + set.insert(prefix,(s=new QmlEnginePrivate::ImportedNamespace)); + } + QString url = uri; + bool isbuiltin = false; + if (importType == QmlScriptParser::Import::Library) { + url.replace(QLatin1Char('.'),QLatin1Char('/')); + bool found = false; + foreach (QString p, importPath) { + QString dir = p+QLatin1Char('/')+url; + QFileInfo fi(dir+QLatin1String("/qmldir")); + if (fi.isFile()) { + url = QUrl::fromLocalFile(fi.absolutePath()).toString(); + found = true; + break; + } + } + if (!found) { + // XXX assume it is a built-in type qualifier + isbuiltin = true; + } + QFactoryLoader *l = loader(); + QmlModuleFactoryInterface *factory = + qobject_cast<QmlModuleFactoryInterface*>(l->instance(uri)); + if (factory) { + factory->defineModuleOnce(uri); + isbuiltin = true; + } + } else { + url = base.resolved(QUrl(url)).toString(); + } + s->uris.prepend(uri); + s->urls.prepend(url); + s->majversions.prepend(vmaj); + s->minversions.prepend(vmin); + s->isLibrary.prepend(importType == QmlScriptParser::Import::Library); + s->isBuiltin.prepend(isbuiltin); + s->qmlDirContent.prepend(qmldircontent); + return true; + } + + bool find(const QByteArray& type, int *vmajor, int *vminor, QmlType** type_return, QUrl* url_return) + { + QmlEnginePrivate::ImportedNamespace *s = 0; + int slash = type.indexOf('/'); + if (slash >= 0) { + while (!s) { + s = set.value(QString::fromUtf8(type.left(slash))); + int nslash = type.indexOf('/',slash+1); + if (nslash > 0) + slash = nslash; + else + break; + } + } else { + s = &unqualifiedset; + } + QByteArray unqualifiedtype = slash < 0 ? type : type.mid(slash+1); // common-case opt (QString::mid works fine, but slower) + if (s) { + if (s->find(unqualifiedtype,vmajor,vminor,type_return,url_return)) + return true; + if (s->urls.count() == 1 && !s->isBuiltin[0] && !s->isLibrary[0] && url_return) { + *url_return = QUrl(s->urls[0]+QLatin1Char('/')).resolved(QUrl(QString::fromUtf8(unqualifiedtype) + QLatin1String(".qml"))); + return true; + } + } + if (url_return) { + *url_return = base.resolved(QUrl(QString::fromUtf8(type + ".qml"))); + return true; + } else { + return false; + } + } + + QmlEnginePrivate::ImportedNamespace *findNamespace(const QString& type) + { + return set.value(type); + } + + QUrl base; + int ref; + +private: + friend struct QmlEnginePrivate::Imports; + QmlEnginePrivate::ImportedNamespace unqualifiedset; + QHash<QString,QmlEnginePrivate::ImportedNamespace* > set; +}; + +QmlEnginePrivate::Imports::Imports(const Imports ©) : + d(copy.d) +{ + ++d->ref; +} + +QmlEnginePrivate::Imports &QmlEnginePrivate::Imports::operator =(const Imports ©) +{ + ++copy.d->ref; + if (--d->ref == 0) + delete d; + d = copy.d; + return *this; +} + +QmlEnginePrivate::Imports::Imports() : + d(new QmlImportsPrivate) +{ +} + +QmlEnginePrivate::Imports::~Imports() +{ + if (--d->ref == 0) + delete d; +} + +#include "qmlmetatype.h" +#include "qmltypenamecache_p.h" + +static QmlTypeNameCache *cacheForNamespace(QmlEngine *engine, const QmlEnginePrivate::ImportedNamespace &set, QmlTypeNameCache *cache) +{ + if (!cache) + cache = new QmlTypeNameCache(engine); + + QList<QmlType *> types = QmlMetaType::qmlTypes(); + + for (int ii = 0; ii < set.uris.count(); ++ii) { + if (!set.isBuiltin.at(ii)) + continue; + + QByteArray base = set.uris.at(ii).toUtf8() + '/'; + int major = set.majversions.at(ii); + int minor = set.minversions.at(ii); + + foreach (QmlType *type, types) { + if (type->qmlTypeName().startsWith(base) && + type->qmlTypeName().lastIndexOf('/') == (base.length() - 1) && + type->availableInVersion(major,minor)) + { + QString name = QString::fromUtf8(type->qmlTypeName().mid(base.length())); + + cache->add(name, type); + } + } + } + + return cache; +} + +QmlTypeNameCache *QmlEnginePrivate::Imports::cache(QmlEngine *engine) const +{ + const QmlEnginePrivate::ImportedNamespace &set = d->unqualifiedset; + + QmlTypeNameCache *cache = new QmlTypeNameCache(engine); + + for (QHash<QString,QmlEnginePrivate::ImportedNamespace* >::ConstIterator iter = d->set.begin(); + iter != d->set.end(); ++iter) { + + QmlTypeNameCache::Data *d = cache->data(iter.key()); + if (d) { + if (!d->typeNamespace) + cacheForNamespace(engine, *(*iter), d->typeNamespace); + } else { + QmlTypeNameCache *nc = cacheForNamespace(engine, *(*iter), 0); + cache->add(iter.key(), nc); + nc->release(); + } + } + + cacheForNamespace(engine, set, cache); + + return cache; +} + +/* +QStringList QmlEnginePrivate::Imports::unqualifiedSet() const +{ + QStringList rv; + + const QmlEnginePrivate::ImportedNamespace &set = d->unqualifiedset; + + for (int ii = 0; ii < set.urls.count(); ++ii) { + if (set.isBuiltin.at(ii)) + rv << set.urls.at(ii); + } + + return rv; +} +*/ + +/*! + Sets the base URL to be used for all relative file imports added. +*/ +void QmlEnginePrivate::Imports::setBaseUrl(const QUrl& url) +{ + d->base = url; +} + +/*! + Returns the base URL to be used for all relative file imports added. +*/ +QUrl QmlEnginePrivate::Imports::baseUrl() const +{ + return d->base; +} + +/*! + Adds \a path as a directory where installed QML components are + defined in a URL-based directory structure. + + For example, if you add \c /opt/MyApp/lib/qml and then load QML + that imports \c com.mycompany.Feature, then QmlEngine will look + in \c /opt/MyApp/lib/qml/com/mycompany/Feature/ for the components + provided by that module (and in the case of versioned imports, + for the \c qmldir file definiting the type version mapping. + + By default, only the "qml" subdirectory of QLibraryInfo::location(QLibraryInfo::DataPath) + is included on the import path. +*/ +void QmlEngine::addImportPath(const QString& path) +{ + if (qmlImportTrace()) + qDebug() << "QmlEngine::addImportPath" << path; + Q_D(QmlEngine); + d->fileImportPath.prepend(path); +} + +/*! + \property QmlEngine::offlineStoragePath + \brief the directory for storing offline user data + + Returns the directory where SQL and other offline + storage is placed. + + QmlGraphicsWebView and the SQL databases created with openDatabase() + are stored here. + + The default is QML/OfflineStorage in the platform-standard + user application data directory. + + Note that the path may not currently exist on the filesystem, so + callers wanting to \e create new files at this location should create + it first - see QDir::mkpath(). +*/ +void QmlEngine::setOfflineStoragePath(const QString& dir) +{ + Q_D(QmlEngine); + d->scriptEngine.offlineStoragePath = dir; +} + +QString QmlEngine::offlineStoragePath() const +{ + Q_D(const QmlEngine); + return d->scriptEngine.offlineStoragePath; +} + + +/*! + \internal + + Adds information to \a imports such that subsequent calls to resolveType() + will resolve types qualified by \a prefix by considering types found at the given \a uri. + + The uri is either a directory (if importType is FileImport), or a URI resolved using paths + added via addImportPath() (if importType is LibraryImport). + + The \a prefix may be empty, in which case the import location is considered for + unqualified types. + + The base URL must already have been set with Import::setBaseUrl(). +*/ +bool QmlEnginePrivate::addToImport(Imports* imports, const QString& qmldircontent, const QString& uri, const QString& prefix, int vmaj, int vmin, QmlScriptParser::Import::Type importType) const +{ + bool ok = imports->d->add(imports->d->base,qmldircontent,uri,prefix,vmaj,vmin,importType,fileImportPath); + if (qmlImportTrace()) + qDebug() << "QmlEngine::addToImport(" << imports << uri << prefix << vmaj << '.' << vmin << (importType==QmlScriptParser::Import::Library? "Library" : "File") << ": " << ok; + return ok; +} + +/*! + \internal + + Using the given \a imports, the given (namespace qualified) \a type is resolved to either + an ImportedNamespace stored at \a ns_return, + a QmlType stored at \a type_return, or + a component located at \a url_return. + + If any return pointer is 0, the corresponding search is not done. + + \sa addToImport() +*/ +bool QmlEnginePrivate::resolveType(const Imports& imports, const QByteArray& type, QmlType** type_return, QUrl* url_return, int *vmaj, int *vmin, ImportedNamespace** ns_return) const +{ + ImportedNamespace* ns = imports.d->findNamespace(QString::fromUtf8(type)); + if (ns) { + if (qmlImportTrace()) + qDebug() << "QmlEngine::resolveType" << type << "is namespace for" << ns->urls; + if (ns_return) + *ns_return = ns; + return true; + } + if (type_return || url_return) { + if (imports.d->find(type,vmaj,vmin,type_return,url_return)) { + if (qmlImportTrace()) { + if (type_return && *type_return) + qDebug() << "QmlEngine::resolveType" << type << '=' << (*type_return)->typeName(); + if (url_return) + qDebug() << "QmlEngine::resolveType" << type << '=' << *url_return; + } + return true; + } + if (qmlImportTrace()) + qDebug() << "QmlEngine::resolveType" << type << "not found"; + } + return false; +} + +/*! + \internal + + Searching \e only in the namespace \a ns (previously returned in a call to + resolveType(), \a type is found and returned to either + a QmlType stored at \a type_return, or + a component located at \a url_return. + + If either return pointer is 0, the corresponding search is not done. +*/ +void QmlEnginePrivate::resolveTypeInNamespace(ImportedNamespace* ns, const QByteArray& type, QmlType** type_return, QUrl* url_return, int *vmaj, int *vmin ) const +{ + ns->find(type,vmaj,vmin,type_return,url_return); +} + +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); + } +} + +void QmlEnginePrivate::registerCompositeType(QmlCompiledData *data) +{ + QByteArray name = data->root->className(); + + QByteArray ptr = name + '*'; + QByteArray lst = "QmlList<" + ptr + ">*"; + + 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 QmlEnginePrivate::isQmlList(int t) const +{ + return m_qmlLists.contains(t) || QmlMetaType::isQmlList(t); +} + +bool QmlEnginePrivate::isObject(int t) +{ + return m_compositeTypes.contains(t) || QmlMetaType::isObject(t); +} + +int QmlEnginePrivate::qmlListType(int t) const +{ + QHash<int, int>::ConstIterator iter = m_qmlLists.find(t); + if (iter != m_qmlLists.end()) + return *iter; + else + return QmlMetaType::qmlListType(t); +} + +QmlMetaType::TypeCategory QmlEnginePrivate::typeCategory(int t) const +{ + if (m_compositeTypes.contains(t)) + return QmlMetaType::Object; + else if (m_qmlLists.contains(t)) + return QmlMetaType::QmlList; + else + return QmlMetaType::typeCategory(t); +} + +const QMetaObject *QmlEnginePrivate::rawMetaObjectForType(int t) const +{ + QHash<int, QmlCompiledData*>::ConstIterator iter = m_compositeTypes.find(t); + if (iter != m_compositeTypes.end()) { + return (*iter)->root; + } else { + return QmlMetaType::rawMetaObjectForType(t); + } +} + +const QMetaObject *QmlEnginePrivate::metaObjectForType(int t) const +{ + QHash<int, QmlCompiledData*>::ConstIterator iter = m_compositeTypes.find(t); + if (iter != m_compositeTypes.end()) { + return (*iter)->root; + } else { + return QmlMetaType::metaObjectForType(t); + } +} + +QT_END_NAMESPACE |