/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef nsJSNPRuntime_h_

#define nsJSNPRuntime_h_

#include "nscore.h"

#include "npapi.h"

#include "npruntime.h"

#include "PLDHashTable.h"

#include "js/RootingAPI.h"

class nsJSNPRuntime

{

public:

  static void OnPluginDestroy(NPP npp);

  static void OnPluginDestroyPending(NPP npp);

};

class nsJSObjWrapperKey

{

public:

  nsJSObjWrapperKey(JSObject *obj, NPP npp)

    : mJSObj(obj), mNpp(npp)

  {

  }

  bool operator==(const nsJSObjWrapperKey& other) const {

    return mJSObj == other.mJSObj && mNpp == other.mNpp;

  }

  bool operator!=(const nsJSObjWrapperKey& other) const {

    return !(*this == other);

  }

  void trace(JSTracer* trc) {

      JS::TraceEdge(trc, &mJSObj, "nsJSObjWrapperKey");

  }

  nsJSObjWrapperKey(const nsJSObjWrapperKey& other)

    : mJSObj(other.mJSObj),

      mNpp(other.mNpp)

  {}

  void operator=(const nsJSObjWrapperKey& other) {

    mJSObj = other.mJSObj;

    mNpp = other.mNpp;

  }

  JS::Heap<JSObject*> mJSObj;

  NPP mNpp;

};

class nsJSObjWrapper : public NPObject

{

public:

  JS::Heap<JSObject*> mJSObj;

  // Because mJSObj might be a cross-compartment wrapper, we can't use it to

  // enter the target realm. We use this global instead (it's always

  // same-compartment with mJSObj).

  JS::Heap<JSObject*> mJSObjGlobal;

  const NPP mNpp;

  bool mDestroyPending;

  static NPObject* GetNewOrUsed(NPP npp, JS::Handle<JSObject*> obj,

                                JS::Handle<JSObject*> objGlobal);

  void trace(JSTracer* trc) {

      JS::TraceEdge(trc, &mJSObj, "nsJSObjWrapper::mJSObj");

      JS::TraceEdge(trc, &mJSObjGlobal, "nsJSObjWrapper::mJSObjGlobal");

  }

protected:

  explicit nsJSObjWrapper(NPP npp);

  ~nsJSObjWrapper();

  static NPObject * NP_Allocate(NPP npp, NPClass *aClass);

  static void NP_Deallocate(NPObject *obj);

  static void NP_Invalidate(NPObject *obj);

  static bool NP_HasMethod(NPObject *, NPIdentifier identifier);

  static bool NP_Invoke(NPObject *obj, NPIdentifier method,

                        const NPVariant *args, uint32_t argCount,

                        NPVariant *result);

  static bool NP_InvokeDefault(NPObject *obj, const NPVariant *args,

                               uint32_t argCount, NPVariant *result);

  static bool NP_HasProperty(NPObject * obj, NPIdentifier property);

  static bool NP_GetProperty(NPObject *obj, NPIdentifier property,

                             NPVariant *result);

  static bool NP_SetProperty(NPObject *obj, NPIdentifier property,

                             const NPVariant *value);

  static bool NP_RemoveProperty(NPObject *obj, NPIdentifier property);

  static bool NP_Enumerate(NPObject *npobj, NPIdentifier **identifier,

                           uint32_t *count);

  static bool NP_Construct(NPObject *obj, const NPVariant *args,

                           uint32_t argCount, NPVariant *result);

public:

  static NPClass sJSObjWrapperNPClass;

};

class nsNPObjWrapper

{

public:

  static bool IsWrapper(JSObject *obj);

  static void OnDestroy(NPObject *npobj);

  static JSObject *GetNewOrUsed(NPP npp, JSContext *cx, NPObject *npobj);

};

bool

JSValToNPVariant(NPP npp, JSContext *cx, const JS::Value& val, NPVariant *variant);

#endif // nsJSNPRuntime_h_