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/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Java XPCOM Bindings.
*
* The Initial Developer of the Original Code is
* IBM Corporation.
* Portions created by the Initial Developer are Copyright (C) 2005
* IBM Corporation. All Rights Reserved.
*
* Contributor(s):
* Javier Pedemonte (jhpedemonte@gmail.com)
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef _nsJavaXPTCStub_h_
#define _nsJavaXPTCStub_h_
#include "nsXPTCUtils.h"
#include "jni.h"
#include "nsVoidArray.h"
#include "nsIInterfaceInfo.h"
#include "nsCOMPtr.h"
#include "nsWeakReference.h"
#include "nsJavaXPTCStubWeakRef.h"
#define NS_JAVAXPTCSTUB_IID \
{0x88dd8130, 0xebe6, 0x4431, {0x9d, 0xa7, 0xe6, 0xb7, 0x54, 0x74, 0xfb, 0x21}}
class nsJavaXPTCStub : protected nsAutoXPTCStub,
public nsSupportsWeakReference
{
friend class nsJavaXPTCStubWeakRef;
public:
NS_DECL_ISUPPORTS
NS_DECL_NSISUPPORTSWEAKREFERENCE
NS_DECLARE_STATIC_IID_ACCESSOR(NS_JAVAXPTCSTUB_IID)
nsJavaXPTCStub(jobject aJavaObject, nsIInterfaceInfo *aIInfo,
nsresult *rv);
virtual ~nsJavaXPTCStub();
// call this method and return result
NS_IMETHOD CallMethod(PRUint16 aMethodIndex,
const XPTMethodDescriptor *aInfo,
nsXPTCMiniVariant *aParams);
nsISomeInterface* GetStub() { return mXPTCStub; }
// getter for mJavaObject
jobject GetJavaObject();
// Deletes the strong global ref for the Java object, so it can be garbage
// collected if necessary. See DestroyXPTCMappingEnum().
void DeleteStrongRef();
/**
* Finds the associated nsJavaXPTCStub for the given Java object and IID.
* If no such stub exists, then a new one is created.
*
* @param env Java environment pointer
* @param aJavaObject Java object for which to find/create nsJavaXPTCStub
* @param aIID desired interface IID for nsJavaXPTCStub
* @param aResult on success, holds AddRef'd reference to nsJavaXPTCStub
*
* @return NS_OK if succeeded; all other return values are error codes.
*/
static nsresult GetNewOrUsed(JNIEnv* env, jobject aJavaObject,
const nsIID& aIID, void** aResult);
private:
NS_IMETHOD_(nsrefcnt) AddRefInternal();
NS_IMETHOD_(nsrefcnt) ReleaseInternal();
// Deletes this object and its members. Called by ReleaseInternal() and
// ReleaseWeakRef().
void Destroy();
// When a nsJavaXPTCStubWeakRef associated with this object is released, it
// calls this function to let this object know that there is one less weak
// ref. If there are no more weakrefs referencing this object, and no one
// holds a strong ref, then this function takes care of deleting the object.
void ReleaseWeakRef();
// returns a weak reference to a child supporting the specified interface
nsJavaXPTCStub * FindStubSupportingIID(const nsID &aIID);
// returns true if this stub supports the specified interface
PRBool SupportsIID(const nsID &aIID);
nsresult SetupJavaParams(const nsXPTParamInfo &aParamInfo,
const XPTMethodDescriptor* aMethodInfo,
PRUint16 aMethodIndex,
nsXPTCMiniVariant* aDispatchParams,
nsXPTCMiniVariant &aVariant,
jvalue &aJValue, nsACString &aMethodSig);
nsresult GetRetvalSig(const nsXPTParamInfo* aParamInfo,
const XPTMethodDescriptor* aMethodInfo,
PRUint16 aMethodIndex,
nsXPTCMiniVariant* aDispatchParams,
nsACString &aRetvalSig);
nsresult FinalizeJavaParams(const nsXPTParamInfo &aParamInfo,
const XPTMethodDescriptor* aMethodInfo,
PRUint16 aMethodIndex,
nsXPTCMiniVariant* aDispatchParams,
nsXPTCMiniVariant &aVariant,
jvalue &aJValue);
nsresult SetXPCOMRetval();
jobject mJavaWeakRef;
jobject mJavaStrongRef;
jint mJavaRefHashCode;
nsCOMPtr<nsIInterfaceInfo> mIInfo;
nsVoidArray mChildren; // weak references (cleared by the children)
nsJavaXPTCStub *mMaster; // strong reference
nsAutoRefCnt mWeakRefCnt; // count for number of associated weak refs
};
#ifdef VBOX
NS_DEFINE_STATIC_IID_ACCESSOR2(nsJavaXPTCStub, NS_JAVAXPTCSTUB_IID)
#else
NS_DEFINE_STATIC_IID_ACCESSOR2(nsJavaXPTCStub, NS_JAVAXPTCSTUB_IID)
#endif
#endif // _nsJavaXPTCStub_h_
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