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Diffstat (limited to 'src/script/api/qscriptvalue_p.h')
| -rw-r--r-- | src/script/api/qscriptvalue_p.h | 172 |
1 files changed, 172 insertions, 0 deletions
diff --git a/src/script/api/qscriptvalue_p.h b/src/script/api/qscriptvalue_p.h new file mode 100644 index 0000000..3359cba --- /dev/null +++ b/src/script/api/qscriptvalue_p.h @@ -0,0 +1,172 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the QtScript 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 either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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 1.0, 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. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at http://www.qtsoftware.com/contact. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QSCRIPTVALUE_P_H +#define QSCRIPTVALUE_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 <QtCore/qobjectdefs.h> + +QT_BEGIN_NAMESPACE + +#include "wtf/Platform.h" +#include "JSValue.h" +#include "qscriptengine.h" + +class QString; +class QScriptValue; + + +class QScriptValuePrivate +{ + /** Helper class used only in QScriptValuePrivate. Supports atomatic invalidation of all script + values evaluated and contained by QScriptEngine when the engine is above to be deleted. + On change it call QScriptEnginePrivate to unregister old and register new pointer value. + It should behave as pointer to QScriptEngine. + */ + class QScriptValueAutoRegister + { + QScriptValuePrivate *val; + QScriptEngine *ptr; + public: + QScriptValueAutoRegister(QScriptValuePrivate *value) : val(value), ptr(0) {}; + QScriptValueAutoRegister(QScriptValuePrivate *value, const QScriptEngine *engine); + ~QScriptValueAutoRegister(); + + QScriptValueAutoRegister& operator=(const QScriptEngine* pointer); + + operator QScriptEngine*() const + { + return ptr; + } + + operator bool() const + { + return ptr; + } + + bool operator==(const int i) const + { + return ptr == (void *)i; + } + + bool operator!=(const int i) const + { + return ptr != (void *)i; + } + + private: + QScriptValueAutoRegister(QScriptValueAutoRegister &/*enigne*/){}; //block it + }; + +public: + enum Type { + JSC, + Number, + String + }; + + QScriptValuePrivate(); + ~QScriptValuePrivate(); + + void initFromJSCValue(JSC::JSValue value); + void initFromNumber(double value); + void initFromString(const QString &value); + + static void initFromJSCValue(QScriptValue &result, + QScriptEngine *engine, + JSC::JSValue value); + + bool isJSC() const; + + QVariant &variantValue() const; + void setVariantValue(const QVariant &value); + + static QScriptValuePrivate *get(const QScriptValue &q); + + QScriptValue property(const JSC::Identifier &id, int resolveMode) const; + QScriptValue property(const QString &, int resolveMode) const; + QScriptValue property(quint32 index, int resolveMode) const; + + QScriptValue toPublic() { + QScriptValue tmp; + tmp.d_ptr = this; + return tmp; + }; + + bool isValid() const {return valid;} + void detachEngine() + { + // if type is not developed in js engine there is no + // need to invalidate the object + if (isJSC()) valid=false; + engine=0; + } + + static void saveException(JSC::ExecState*, JSC::JSValue*); + static void restoreException(JSC::ExecState*, JSC::JSValue); + + QScriptValueAutoRegister engine; + Type type; + JSC::JSValue jscValue; + double numberValue; + QString stringValue; + + QBasicAtomicInt ref; + bool valid; //object is valid ? + + qint64 id; //object unique id number +}; + + +QT_END_NAMESPACE + +#endif |