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      1 /*
      2  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
      3  *
      4  *  This library is free software; you can redistribute it and/or
      5  *  modify it under the terms of the GNU Lesser General Public
      6  *  License as published by the Free Software Foundation; either
      7  *  version 2 of the License, or (at your option) any later version.
      8  *
      9  *  This library is distributed in the hope that it will be useful,
     10  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
     11  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     12  *  Lesser General Public License for more details.
     13  *
     14  *  You should have received a copy of the GNU Lesser General Public
     15  *  License along with this library; if not, write to the Free Software
     16  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
     17  *
     18  */
     19 
     20 #ifndef BINDINGS_QT_INSTANCE_H_
     21 #define BINDINGS_QT_INSTANCE_H_
     22 
     23 #include "Bridge.h"
     24 #include "runtime_root.h"
     25 #include <QtScript/qscriptengine.h>
     26 #include <qhash.h>
     27 #include <qpointer.h>
     28 #include <qset.h>
     29 
     30 namespace JSC {
     31 
     32 namespace Bindings {
     33 
     34 class QtClass;
     35 class QtField;
     36 class QtRuntimeMetaMethod;
     37 
     38 class QtInstance : public Instance {
     39 public:
     40     ~QtInstance();
     41 
     42     virtual Class* getClass() const;
     43     virtual RuntimeObjectImp* newRuntimeObject(ExecState*);
     44 
     45     virtual void begin();
     46     virtual void end();
     47 
     48     virtual JSValue valueOf(ExecState*) const;
     49     virtual JSValue defaultValue(ExecState*, PreferredPrimitiveType) const;
     50 
     51     void markAggregate(MarkStack&);
     52 
     53     virtual JSValue invokeMethod(ExecState*, const MethodList&, const ArgList&);
     54 
     55     virtual void getPropertyNames(ExecState*, PropertyNameArray&);
     56 
     57     JSValue stringValue(ExecState* exec) const;
     58     JSValue numberValue(ExecState* exec) const;
     59     JSValue booleanValue() const;
     60 
     61     QObject* getObject() const { return m_object; }
     62     QObject* hashKey() const { return m_hashkey; }
     63 
     64     static PassRefPtr<QtInstance> getQtInstance(QObject*, PassRefPtr<RootObject>, QScriptEngine::ValueOwnership ownership);
     65 
     66     virtual bool getOwnPropertySlot(JSObject*, ExecState*, const Identifier&, PropertySlot&);
     67     virtual void put(JSObject*, ExecState*, const Identifier&, JSValue, PutPropertySlot&);
     68 
     69     void removeCachedMethod(JSObject*);
     70 
     71     static QtInstance* getInstance(JSObject*);
     72 
     73 private:
     74     static PassRefPtr<QtInstance> create(QObject *instance, PassRefPtr<RootObject> rootObject, QScriptEngine::ValueOwnership ownership)
     75     {
     76         return adoptRef(new QtInstance(instance, rootObject, ownership));
     77     }
     78 
     79     friend class QtClass;
     80     friend class QtField;
     81     QtInstance(QObject*, PassRefPtr<RootObject>, QScriptEngine::ValueOwnership ownership); // Factory produced only..
     82     mutable QtClass* m_class;
     83     QPointer<QObject> m_object;
     84     QObject* m_hashkey;
     85     mutable QHash<QByteArray, JSObject*> m_methods;
     86     mutable QHash<QString, QtField*> m_fields;
     87     mutable QtRuntimeMetaMethod* m_defaultMethod;
     88     QScriptEngine::ValueOwnership m_ownership;
     89 };
     90 
     91 } // namespace Bindings
     92 
     93 } // namespace JSC
     94 
     95 #endif
     96