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      1 /*
      2  * Copyright (C) 2009, 2010 Apple Inc. All Rights Reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
     14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
     17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #if USE(PLUGIN_HOST_PROCESS)
     27 
     28 #ifndef ProxyInstance_h
     29 #define ProxyInstance_h
     30 
     31 #import "NetscapePluginInstanceProxy.h"
     32 #import "WebKitPluginHostTypes.h"
     33 #import <WebCore/BridgeJSC.h>
     34 #import <WebCore/runtime_root.h>
     35 #import <wtf/OwnPtr.h>
     36 
     37 namespace WebKit {
     38 
     39 class ProxyClass;
     40 
     41 class ProxyInstance : public JSC::Bindings::Instance {
     42 public:
     43     static PassRefPtr<ProxyInstance> create(PassRefPtr<JSC::Bindings::RootObject> rootObject, NetscapePluginInstanceProxy* instanceProxy, uint32_t objectID)
     44     {
     45         return adoptRef(new ProxyInstance(rootObject, instanceProxy, objectID));
     46     }
     47     ~ProxyInstance();
     48 
     49     JSC::Bindings::MethodList methodsNamed(const JSC::Identifier&);
     50     JSC::Bindings::Field* fieldNamed(const JSC::Identifier&);
     51 
     52     JSC::JSValue fieldValue(JSC::ExecState*, const JSC::Bindings::Field*) const;
     53     void setFieldValue(JSC::ExecState*, const JSC::Bindings::Field*, JSC::JSValue) const;
     54 
     55     void invalidate();
     56 
     57     uint32_t objectID() const { return m_objectID; }
     58 
     59 private:
     60     ProxyInstance(PassRefPtr<JSC::Bindings::RootObject>, NetscapePluginInstanceProxy*, uint32_t objectID);
     61 
     62     virtual JSC::Bindings::RuntimeObject* newRuntimeObject(JSC::ExecState*);
     63 
     64     virtual JSC::Bindings::Class* getClass() const;
     65 
     66     virtual JSC::JSValue getMethod(JSC::ExecState* exec, const JSC::Identifier& propertyName);
     67     virtual JSC::JSValue invokeMethod(JSC::ExecState*, JSC::RuntimeMethod*);
     68 
     69     virtual bool supportsInvokeDefaultMethod() const;
     70     virtual JSC::JSValue invokeDefaultMethod(JSC::ExecState*);
     71 
     72     virtual bool supportsConstruct() const;
     73     virtual JSC::JSValue invokeConstruct(JSC::ExecState*, const JSC::ArgList&);
     74 
     75     virtual JSC::JSValue defaultValue(JSC::ExecState*, JSC::PreferredPrimitiveType) const;
     76     virtual JSC::JSValue valueOf(JSC::ExecState*) const;
     77 
     78     virtual void getPropertyNames(JSC::ExecState*, JSC::PropertyNameArray&);
     79 
     80     JSC::JSValue stringValue(JSC::ExecState*) const;
     81     JSC::JSValue numberValue(JSC::ExecState*) const;
     82     JSC::JSValue booleanValue() const;
     83 
     84     JSC::JSValue invoke(JSC::ExecState*, InvokeType, uint64_t identifier, const JSC::ArgList&);
     85 
     86     template <typename T>
     87     std::auto_ptr<T> waitForReply(uint32_t requestID) const {
     88         std::auto_ptr<T> reply = m_instanceProxy->waitForReply<T>(requestID);
     89 
     90         // If the instance proxy was invalidated, just return a null reply.
     91         if (!m_instanceProxy)
     92             return std::auto_ptr<T>();
     93 
     94         return reply;
     95     }
     96 
     97     NetscapePluginInstanceProxy* m_instanceProxy;
     98     uint32_t m_objectID;
     99     JSC::Bindings::FieldMap m_fields;
    100     JSC::Bindings::MethodMap m_methods;
    101 };
    102 
    103 }
    104 
    105 #endif // ProxyInstance_h
    106 #endif // USE(PLUGIN_HOST_PROCESS)
    107