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Diffstat (limited to 'src/libs/xpcom18a4/java/src/nsXPTCUtils.h')
-rw-r--r-- | src/libs/xpcom18a4/java/src/nsXPTCUtils.h | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/src/libs/xpcom18a4/java/src/nsXPTCUtils.h b/src/libs/xpcom18a4/java/src/nsXPTCUtils.h new file mode 100644 index 00000000..9a1fe3cc --- /dev/null +++ b/src/libs/xpcom18a4/java/src/nsXPTCUtils.h @@ -0,0 +1,128 @@ +/* ***** 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 Mozilla XPCOM. + * + * The Initial Developer of the Original Code is + * the Mozilla Foundation <http://www.mozilla.org/>. + * Portions created by the Initial Developer are Copyright (C) 2006 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Benjamin Smedberg <benjamin@smedbergs.us> - New code + * + * 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 nsXPTCUtils_h__ +#define nsXPTCUtils_h__ + +#include "xptcall.h" + +#ifdef VBOX + +#define NS_DECLARE_STATIC_IID_ACCESSOR(the_iid) \ + template <class Dummy> \ + struct COMTypeInfo \ + { \ + static const nsIID kIID NS_HIDDEN; \ + }; \ + static const nsIID& GetIID() {return COMTypeInfo<int>::kIID;} + + +#define NS_DEFINE_STATIC_IID_ACCESSOR2(the_interface, the_iid) \ + template <class Dummy> \ + const nsIID the_interface::COMTypeInfo<Dummy>::kIID NS_HIDDEN = the_iid; + + +class nsIXPTCProxy : public nsISupports +{ +public: + NS_IMETHOD CallMethod(PRUint16 aMethodIndex, + const XPTMethodDescriptor *aInfo, + nsXPTCMiniVariant *aParams) = 0; +}; + +/** + * This is a typedef to avoid confusion between the canonical + * nsISupports* that provides object identity and an interface pointer + * for inheriting interfaces that aren't known at compile-time. + */ +typedef nsISupports nsISomeInterface; + +/** + * Get a proxy object to implement the specified interface. + * + * @param aIID The IID of the interface to implement. + * @param aOuter An object to receive method calls from the proxy object. + * The stub forwards QueryInterface/AddRef/Release to the + * outer object. The proxy object does not hold a reference to + * the outer object; it is the caller's responsibility to + * ensure that this pointer remains valid until the stub has + * been destroyed. + * @param aStub Out parameter for the new proxy object. The object is + * not addrefed. The object never destroys itself. It must be + * explicitly destroyed by calling + * NS_DestroyXPTCallStub when it is no longer needed. + */ +XPTC_PUBLIC_API(nsresult) +NS_GetXPTCallStub(REFNSIID aIID, nsIXPTCProxy* aOuter, + nsISomeInterface* *aStub); + +/** + * Destroys an XPTCall stub previously created with NS_GetXPTCallStub. + */ +XPTC_PUBLIC_API(void) +NS_DestroyXPTCallStub(nsISomeInterface* aStub); + + +#endif + + +/** + * A helper class that initializes an xptcall helper at construction + * and releases it at destruction. + */ +class nsAutoXPTCStub : protected nsIXPTCProxy +{ +public: + nsISomeInterface* mXPTCStub; + +protected: + nsAutoXPTCStub() : mXPTCStub(nsnull) { } + + nsresult + InitStub(const nsIID& aIID) + { + return NS_GetXPTCallStub(aIID, this, &mXPTCStub); + } + + ~nsAutoXPTCStub() + { + if (mXPTCStub) + NS_DestroyXPTCallStub(mXPTCStub); + } +}; + +#endif // nsXPTCUtils_h__ |