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Diffstat (limited to 'src/qml/qml/qqmlvmemetaobject_p.h')
| -rw-r--r-- | src/qml/qml/qqmlvmemetaobject_p.h | 221 |
1 files changed, 221 insertions, 0 deletions
diff --git a/src/qml/qml/qqmlvmemetaobject_p.h b/src/qml/qml/qqmlvmemetaobject_p.h new file mode 100644 index 0000000000..deee989383 --- /dev/null +++ b/src/qml/qml/qqmlvmemetaobject_p.h @@ -0,0 +1,221 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/ +** +** This file is part of the QtQml module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** GNU Lesser General Public License Usage +** 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. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU General +** Public License version 3.0 as published by the Free Software Foundation +** and appearing in the file LICENSE.GPL included in the packaging of this +** file. Please review the following information to ensure the GNU General +** Public License version 3.0 requirements will be met: +** http://www.gnu.org/copyleft/gpl.html. +** +** Other Usage +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QQMLVMEMETAOBJECT_P_H +#define QQMLVMEMETAOBJECT_P_H + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists purely as an +// implementation detail. This header file may change from version to +// version without notice, or even be removed. +// +// We mean it. +// + +#include "qqml.h" + +#include <QtCore/QMetaObject> +#include <QtCore/QBitArray> +#include <QtCore/QPair> +#include <QtGui/QColor> +#include <QtCore/QDate> +#include <QtCore/qlist.h> +#include <QtCore/qdebug.h> + +#include <private/qobject_p.h> + +#include "qqmlguard_p.h" +#include "qqmlcompiler_p.h" +#include "qqmlcontext_p.h" + +#include <private/qv8engine_p.h> + +#include <private/qv8_p.h> + +QT_BEGIN_NAMESPACE + +#define QML_ALIAS_FLAG_PTR 0x00000001 + +struct QQmlVMEMetaData +{ + short varPropertyCount; + short propertyCount; + short aliasCount; + short signalCount; + short methodCount; + short dummyForAlignment; // Add padding to ensure that the following + // AliasData/PropertyData/MethodData is int aligned. + + struct AliasData { + int contextIdx; + int propertyIdx; + int flags; + + bool isObjectAlias() const { + return propertyIdx == -1; + } + bool isPropertyAlias() const { + return !isObjectAlias() && !(propertyIdx & 0xFF000000); + } + bool isValueTypeAlias() const { + return !isObjectAlias() && (propertyIdx & 0xFF000000); + } + int propertyIndex() const { + return propertyIdx & 0x0000FFFF; + } + int valueTypeIndex() const { + return (propertyIdx & 0x00FF0000) >> 16; + } + int valueType() const { + return ((unsigned int)propertyIdx) >> 24; + } + }; + + struct PropertyData { + int propertyType; + }; + + struct MethodData { + int parameterCount; + int bodyOffset; + int bodyLength; + int lineNumber; + }; + + PropertyData *propertyData() const { + return (PropertyData *)(((const char *)this) + sizeof(QQmlVMEMetaData)); + } + + AliasData *aliasData() const { + return (AliasData *)(propertyData() + propertyCount); + } + + MethodData *methodData() const { + return (MethodData *)(aliasData() + aliasCount); + } +}; + +class QV8QObjectWrapper; +class QQmlVMEVariant; +class QQmlRefCount; +class QQmlVMEMetaObjectEndpoint; +class Q_AUTOTEST_EXPORT QQmlVMEMetaObject : public QAbstractDynamicMetaObject, + public QV8GCCallback::Node +{ +public: + QQmlVMEMetaObject(QObject *obj, const QMetaObject *other, const QQmlVMEMetaData *data, + QQmlCompiledData *compiledData); + ~QQmlVMEMetaObject(); + + bool aliasTarget(int index, QObject **target, int *coreIndex, int *valueTypeIndex) const; + void registerInterceptor(int index, int valueIndex, QQmlPropertyValueInterceptor *interceptor); + v8::Handle<v8::Function> vmeMethod(int index); + int vmeMethodLineNumber(int index); + void setVmeMethod(int index, v8::Persistent<v8::Function>); + v8::Handle<v8::Value> vmeProperty(int index); + void setVMEProperty(int index, v8::Handle<v8::Value> v); + + void connectAliasSignal(int index); + +protected: + virtual int metaCall(QMetaObject::Call _c, int _id, void **_a); + +private: + friend class QQmlVMEMetaObjectEndpoint; + + QObject *object; + QQmlCompiledData *compiledData; + QQmlGuardedContextData ctxt; + + const QQmlVMEMetaData *metaData; + int propOffset; + int methodOffset; + + QQmlVMEVariant *data; + QQmlVMEMetaObjectEndpoint *aliasEndpoints; + + v8::Persistent<v8::Array> varProperties; + int firstVarPropertyIndex; + bool varPropertiesInitialized; + static void VarPropertiesWeakReferenceCallback(v8::Persistent<v8::Value> object, void* parameter); + static void GcPrologueCallback(QV8GCCallback::Node *node); + inline void allocateVarPropertiesArray(); + inline void ensureVarPropertiesAllocated(); + + void connectAlias(int aliasId); + QBitArray aConnected; + QBitArray aInterceptors; + QHash<int, QPair<int, QQmlPropertyValueInterceptor*> > interceptors; + + v8::Persistent<v8::Function> *v8methods; + v8::Handle<v8::Function> method(int); + + v8::Handle<v8::Value> readVarProperty(int); + void writeVarProperty(int, v8::Handle<v8::Value>); + QVariant readPropertyAsVariant(int); + void writeProperty(int, const QVariant &); + + QAbstractDynamicMetaObject *parent; + + void listChanged(int); + class List : public QList<QObject*> + { + public: + List(int lpi) : notifyIndex(lpi) {} + int notifyIndex; + }; + QList<List> listProperties; + + static void list_append(QQmlListProperty<QObject> *, QObject *); + static int list_count(QQmlListProperty<QObject> *); + static QObject *list_at(QQmlListProperty<QObject> *, int); + static void list_clear(QQmlListProperty<QObject> *); + + friend class QV8GCCallback; + friend class QV8QObjectWrapper; +}; + +QT_END_NAMESPACE + +#endif // QQMLVMEMETAOBJECT_P_H |