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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 qt_instance_h
     21 #define qt_instance_h
     22 
     23 #include "BridgeJSC.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 RuntimeObject* 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 getMethod(ExecState* exec, const Identifier& propertyName);
     54     virtual JSValue invokeMethod(ExecState*, RuntimeMethod*);
     55 
     56     virtual void getPropertyNames(ExecState*, PropertyNameArray&);
     57 
     58     JSValue stringValue(ExecState* exec) const;
     59     JSValue numberValue(ExecState* exec) const;
     60     JSValue booleanValue() const;
     61 
     62     QObject* getObject() const { return m_object; }
     63     QObject* hashKey() const { return m_hashkey; }
     64 
     65     static PassRefPtr<QtInstance> getQtInstance(QObject*, PassRefPtr<RootObject>, QScriptEngine::ValueOwnership ownership);
     66 
     67     virtual bool getOwnPropertySlot(JSObject*, ExecState*, const Identifier&, PropertySlot&);
     68     virtual void put(JSObject*, ExecState*, const Identifier&, JSValue, PutPropertySlot&);
     69 
     70     void removeCachedMethod(JSObject*);
     71 
     72     static QtInstance* getInstance(JSObject*);
     73 
     74 private:
     75     static PassRefPtr<QtInstance> create(QObject *instance, PassRefPtr<RootObject> rootObject, QScriptEngine::ValueOwnership ownership)
     76     {
     77         return adoptRef(new QtInstance(instance, rootObject, ownership));
     78     }
     79 
     80     friend class QtClass;
     81     friend class QtField;
     82     QtInstance(QObject*, PassRefPtr<RootObject>, QScriptEngine::ValueOwnership ownership); // Factory produced only..
     83     mutable QtClass* m_class;
     84     QPointer<QObject> m_object;
     85     QObject* m_hashkey;
     86     mutable QHash<QByteArray, WriteBarrier<JSObject> > m_methods;
     87     mutable QHash<QString, QtField*> m_fields;
     88     mutable WriteBarrier<QtRuntimeMetaMethod> m_defaultMethod;
     89     QScriptEngine::ValueOwnership m_ownership;
     90 };
     91 
     92 } // namespace Bindings
     93 
     94 } // namespace JSC
     95 
     96 #endif
     97