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Diffstat (limited to 'src/script/qscriptextvariant.cpp')
| -rw-r--r-- | src/script/qscriptextvariant.cpp | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/src/script/qscriptextvariant.cpp b/src/script/qscriptextvariant.cpp new file mode 100644 index 0000000..33c5edd --- /dev/null +++ b/src/script/qscriptextvariant.cpp @@ -0,0 +1,169 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (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 qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qscriptextvariant_p.h" + +#ifndef QT_NO_SCRIPT + +#include "qscriptengine_p.h" +#include "qscriptvalueimpl_p.h" +#include "qscriptcontext_p.h" +#include "qscriptmember_p.h" +#include "qscriptobject_p.h" + +#include <QtCore/QtDebug> + +#include <QtCore/QStringList> + +#include <limits.h> + +QT_BEGIN_NAMESPACE + +namespace QScript { namespace Ext { + +Variant::Variant(QScriptEnginePrivate *eng): + Ecma::Core(eng, QLatin1String("QVariant"), QScriptClassInfo::VariantType) +{ + newVariant(&publicPrototype, QVariant()); + + eng->newConstructor(&ctor, this, publicPrototype); + + addPrototypeFunction(QLatin1String("toString"), method_toString, 0); + addPrototypeFunction(QLatin1String("valueOf"), method_valueOf, 0); +} + +Variant::~Variant() +{ +} + +Variant::Instance *Variant::Instance::get(const QScriptValueImpl &object, QScriptClassInfo *klass) +{ + if (! klass || klass == object.classInfo()) + return static_cast<Instance*> (object.objectData()); + + return 0; +} + +void Variant::execute(QScriptContextPrivate *context) +{ + QScriptValueImpl tmp; + newVariant(&tmp, QVariant()); + context->setReturnValue(tmp); +} + +void Variant::newVariant(QScriptValueImpl *result, const QVariant &value) +{ + Instance *instance; + if (!result->isValid()) { + engine()->newObject(result, publicPrototype, classInfo()); + instance = new Instance(); + result->setObjectData(instance); + } else { + Q_ASSERT(result->isObject()); + if (result->classInfo() != classInfo()) { + result->destroyObjectData(); + result->setClassInfo(classInfo()); + instance = new Instance(); + result->setObjectData(instance); + } else { + instance = Instance::get(*result, classInfo()); + } + } + instance->value = value; +} + +QScriptValueImpl Variant::method_toString(QScriptContextPrivate *context, QScriptEnginePrivate *eng, QScriptClassInfo *classInfo) +{ + if (Instance *instance = Instance::get(context->thisObject(), classInfo)) { + QString result; + QScriptValueImpl value = method_valueOf(context, eng, classInfo); + if (value.isObject()) { + result = instance->value.toString(); + if (result.isEmpty()) { + result = QString::fromLatin1("QVariant(%0)") + .arg(QLatin1String(instance->value.typeName())); + } + } else { + result = value.toString(); + } + return QScriptValueImpl(eng, result); + } + return context->throwError(QScriptContext::TypeError, + QLatin1String("QVariant.prototype.toString")); +} + +QScriptValueImpl Variant::method_valueOf(QScriptContextPrivate *context, QScriptEnginePrivate *eng, QScriptClassInfo *classInfo) +{ + if (Instance *instance = Instance::get(context->thisObject(), classInfo)) { + QVariant v = instance->value; + switch (v.type ()) { + case QVariant::Invalid: + return eng->undefinedValue(); + case QVariant::String: + return (QScriptValueImpl(eng, v.toString())); + + case QVariant::Int: + return (QScriptValueImpl(v.toInt())); + + case QVariant::Bool: + return (QScriptValueImpl(v.toBool())); + + case QVariant::Double: + return (QScriptValueImpl(v.toDouble())); // ### hmmm + + case QVariant::Char: + return (QScriptValueImpl(v.toChar().unicode())); + + case QVariant::UInt: + return (QScriptValueImpl(v.toUInt())); + + default: + return context->thisObject(); + } // switch + } + return context->thisObject(); +} + +} } // namespace QScript::Ecma + +QT_END_NAMESPACE + +#endif // QT_NO_SCRIPT |