1 files changed, 308 insertions, 0 deletions
diff --git a/examples/script/customclass/bytearrayclass.cpp b/examples/script/customclass/bytearrayclass.cpp
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+++ b/examples/script/customclass/bytearrayclass.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+**     the names of its contributors may be used to endorse or promote
+**     products derived from this software without specific prior written
+**     permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtScript/QScriptClassPropertyIterator>
+#include <QtScript/QScriptEngine>
+#include "bytearrayclass.h"
+#include "bytearrayprototype.h"
+
+#include <stdlib.h>
+
+Q_DECLARE_METATYPE(QByteArray*)
+Q_DECLARE_METATYPE(ByteArrayClass*)
+
+class ByteArrayClassPropertyIterator : public QScriptClassPropertyIterator
+{
+public:
+    ByteArrayClassPropertyIterator(const QScriptValue &object);
+    ~ByteArrayClassPropertyIterator();
+
+    bool hasNext() const;
+    void next();
+
+    bool hasPrevious() const;
+    void previous();
+
+    void toFront();
+    void toBack();
+
+    QScriptString name() const;
+    uint id() const;
+
+private:
+    int m_index;
+    int m_last;
+};
+
+//! [0]
+ByteArrayClass::ByteArrayClass(QScriptEngine *engine)
+    : QObject(engine), QScriptClass(engine)
+{
+    qScriptRegisterMetaType<QByteArray>(engine, toScriptValue, fromScriptValue);
+
+    length = engine->toStringHandle(QLatin1String("length"));
+
+    proto = engine->newQObject(new ByteArrayPrototype(this),
+                               QScriptEngine::QtOwnership,
+                               QScriptEngine::SkipMethodsInEnumeration
+                               | QScriptEngine::ExcludeSuperClassMethods
+                               | QScriptEngine::ExcludeSuperClassProperties);
+    QScriptValue global = engine->globalObject();
+    proto.setPrototype(global.property("Object").property("prototype"));
+
+    ctor = engine->newFunction(construct, proto);
+    ctor.setData(engine->toScriptValue(this));
+}
+//! [0]
+
+ByteArrayClass::~ByteArrayClass()
+{
+}
+
+//! [3]
+QScriptClass::QueryFlags ByteArrayClass::queryProperty(const QScriptValue &object,
+                                                       const QScriptString &name,
+                                                       QueryFlags flags, uint *id)
+{
+    QByteArray *ba = qscriptvalue_cast<QByteArray*>(object.data());
+    if (!ba)
+        return 0;
+    if (name == length) {
+        return flags;
+    } else {
+        bool isArrayIndex;
+        qint32 pos = name.toArrayIndex(&isArrayIndex);
+        if (!isArrayIndex)
+            return 0;
+        *id = pos;
+        if ((flags & HandlesReadAccess) && (pos >= ba->size()))
+            flags &= ~HandlesReadAccess;
+        return flags;
+    }
+}
+//! [3]
+
+//! [4]
+QScriptValue ByteArrayClass::property(const QScriptValue &object,
+                                      const QScriptString &name, uint id)
+{
+    QByteArray *ba = qscriptvalue_cast<QByteArray*>(object.data());
+    if (!ba)
+        return QScriptValue();
+    if (name == length) {
+        return ba->length();
+    } else {
+        qint32 pos = id;
+        if ((pos < 0) || (pos >= ba->size()))
+            return QScriptValue();
+        return uint(ba->at(pos)) & 255;
+    }
+    return QScriptValue();
+}
+//! [4]
+
+//! [5]
+void ByteArrayClass::setProperty(QScriptValue &object,
+                                 const QScriptString &name,
+                                 uint id, const QScriptValue &value)
+{
+    QByteArray *ba = qscriptvalue_cast<QByteArray*>(object.data());
+    if (!ba)
+        return;
+    if (name == length) {
+        resize(*ba, value.toInt32());
+    } else {
+        qint32 pos = id;
+        if (pos < 0)
+            return;
+        if (ba->size() <= pos)
+            resize(*ba, pos + 1);
+        (*ba)[pos] = char(value.toInt32());
+    }
+}
+//! [5]
+
+//! [6]
+QScriptValue::PropertyFlags ByteArrayClass::propertyFlags(
+    const QScriptValue &/*object*/, const QScriptString &name, uint /*id*/)
+{
+    if (name == length) {
+        return QScriptValue::Undeletable
+            | QScriptValue::SkipInEnumeration;
+    }
+    return QScriptValue::Undeletable;
+}
+//! [6]
+
+//! [7]
+QScriptClassPropertyIterator *ByteArrayClass::newIterator(const QScriptValue &object)
+{
+    return new ByteArrayClassPropertyIterator(object);
+}
+//! [7]
+
+QString ByteArrayClass::name() const
+{
+    return QLatin1String("ByteArray");
+}
+
+QScriptValue ByteArrayClass::prototype() const
+{
+    return proto;
+}
+
+QScriptValue ByteArrayClass::constructor()
+{
+    return ctor;
+}
+
+//! [10]
+QScriptValue ByteArrayClass::newInstance(int size)
+{
+    engine()->reportAdditionalMemoryCost(size);
+    return newInstance(QByteArray(size, /*ch=*/0));
+}
+//! [10]
+
+//! [1]
+QScriptValue ByteArrayClass::newInstance(const QByteArray &ba)
+{
+    QScriptValue data = engine()->newVariant(QVariant::fromValue(ba));
+    return engine()->newObject(this, data);
+}
+//! [1]
+
+//! [2]
+QScriptValue ByteArrayClass::construct(QScriptContext *ctx, QScriptEngine *)
+{
+    ByteArrayClass *cls = qscriptvalue_cast<ByteArrayClass*>(ctx->callee().data());
+    if (!cls)
+        return QScriptValue();
+    QScriptValue arg = ctx->argument(0);
+    if (arg.instanceOf(ctx->callee()))
+        return cls->newInstance(qscriptvalue_cast<QByteArray>(arg));
+    int size = arg.toInt32();
+    return cls->newInstance(size);
+}
+//! [2]
+
+QScriptValue ByteArrayClass::toScriptValue(QScriptEngine *eng, const QByteArray &ba)
+{
+    QScriptValue ctor = eng->globalObject().property("ByteArray");
+    ByteArrayClass *cls = qscriptvalue_cast<ByteArrayClass*>(ctor.data());
+    if (!cls)
+        return eng->newVariant(QVariant::fromValue(ba));
+    return cls->newInstance(ba);
+}
+
+void ByteArrayClass::fromScriptValue(const QScriptValue &obj, QByteArray &ba)
+{
+    ba = qvariant_cast<QByteArray>(obj.data().toVariant());
+}
+
+//! [9]
+void ByteArrayClass::resize(QByteArray &ba, int newSize)
+{
+    int oldSize = ba.size();
+    ba.resize(newSize);
+    if (newSize > oldSize)
+        engine()->reportAdditionalMemoryCost(newSize - oldSize);
+}
+//! [9]
+
+
+
+ByteArrayClassPropertyIterator::ByteArrayClassPropertyIterator(const QScriptValue &object)
+    : QScriptClassPropertyIterator(object)
+{
+    toFront();
+}
+
+ByteArrayClassPropertyIterator::~ByteArrayClassPropertyIterator()
+{
+}
+
+//! [8]
+bool ByteArrayClassPropertyIterator::hasNext() const
+{
+    QByteArray *ba = qscriptvalue_cast<QByteArray*>(object().data());
+    return m_index < ba->size();
+}
+
+void ByteArrayClassPropertyIterator::next()
+{
+    m_last = m_index;
+    ++m_index;
+}
+
+bool ByteArrayClassPropertyIterator::hasPrevious() const
+{
+    return (m_index > 0);
+}
+
+void ByteArrayClassPropertyIterator::previous()
+{
+    --m_index;
+    m_last = m_index;
+}
+
+void ByteArrayClassPropertyIterator::toFront()
+{
+    m_index = 0;
+    m_last = -1;
+}
+
+void ByteArrayClassPropertyIterator::toBack()
+{
+    QByteArray *ba = qscriptvalue_cast<QByteArray*>(object().data());
+    m_index = ba->size();
+    m_last = -1;
+}
+
+QScriptString ByteArrayClassPropertyIterator::name() const
+{
+    return object().engine()->toStringHandle(QString::number(m_last));
+}
+
+uint ByteArrayClassPropertyIterator::id() const
+{
+    return m_last;
+}
+//! [8]