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292 lines
10 KiB
C++
292 lines
10 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.1 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#ifndef nsComponentManagerUtils_h__
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#define nsComponentManagerUtils_h__
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#ifndef nsCOMPtr_h__
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#include "nsCOMPtr.h"
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#endif
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#ifndef OBSOLETE_MODULE_LOADING
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/*
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* Prototypes for dynamic library export functions. Your DLL/DSO needs to export
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* these methods to play in the component world.
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*
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* THIS IS OBSOLETE. Look at nsIModule.idl
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*/
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extern "C" NS_EXPORT nsresult NSGetFactory(nsISupports* aServMgr,
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const nsCID &aClass,
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const char *aClassName,
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const char *aContractID,
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nsIFactory **aFactory);
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extern "C" NS_EXPORT PRBool NSCanUnload(nsISupports* aServMgr);
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extern "C" NS_EXPORT nsresult NSRegisterSelf(nsISupports* aServMgr, const char *fullpath);
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extern "C" NS_EXPORT nsresult NSUnregisterSelf(nsISupports* aServMgr, const char *fullpath);
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typedef nsresult (*nsFactoryProc)(nsISupports* aServMgr,
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const nsCID &aClass,
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const char *aClassName,
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const char *aContractID,
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nsIFactory **aFactory);
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typedef PRBool (*nsCanUnloadProc)(nsISupports* aServMgr);
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typedef nsresult (*nsRegisterProc)(nsISupports* aServMgr, const char *path);
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typedef nsresult (*nsUnregisterProc)(nsISupports* aServMgr, const char *path);
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#endif /* OBSOLETE_MODULE_LOADING */
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#define NS_COMPONENTMANAGER_CID \
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{ /* 91775d60-d5dc-11d2-92fb-00e09805570f */ \
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0x91775d60, \
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0xd5dc, \
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0x11d2, \
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{0x92, 0xfb, 0x00, 0xe0, 0x98, 0x05, 0x57, 0x0f} \
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}
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#define NS_COMPONENTMANAGER_CONTRACTID "@mozilla.org/xpcom/componentmanager;1"
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extern NS_COM nsresult
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NS_GetGlobalComponentManager(nsIComponentManager* *result);
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////////////////////////////////////////////////////////////////////////////////
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// Global Static Component Manager Methods
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// (for when you need to link with xpcom)
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class NS_COM nsComponentManager {
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public:
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static nsresult Initialize(void);
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// Finds a factory for a specific class ID
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static nsresult FindFactory(const nsCID &aClass,
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nsIFactory **aFactory);
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// Get the singleton class object that implements the CID aClass
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static nsresult GetClassObject(const nsCID &aClass, const nsIID &aIID,
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void **aResult);
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// Finds a class ID for a specific Program ID
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static nsresult ContractIDToClassID(const char *aContractID,
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nsCID *aClass);
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// Finds a Program ID for a specific class ID
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// caller frees the result with delete[]
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static nsresult CLSIDToContractID(nsCID *aClass,
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char* *aClassName,
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char* *aContractID);
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// Creates a class instance for a specific class ID
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static nsresult CreateInstance(const nsCID &aClass,
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nsISupports *aDelegate,
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const nsIID &aIID,
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void **aResult);
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// Convenience routine, creates a class instance for a specific ContractID
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static nsresult CreateInstance(const char *aContractID,
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nsISupports *aDelegate,
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const nsIID &aIID,
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void **aResult);
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// Manually registry a factory for a class
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static nsresult RegisterFactory(const nsCID &aClass,
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const char *aClassName,
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const char *aContractID,
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nsIFactory *aFactory,
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PRBool aReplace);
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// Manually register a dynamically loaded component.
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// The libraryPersistentDescriptor is what gets passed to the library
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// self register function from ComponentManager. The format of this string
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// is the same as nsIFile::GetPath()
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//
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// This function will go away in favour of RegisterComponentSpec. In fact,
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// it internally turns around and calls RegisterComponentSpec.
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static nsresult RegisterComponent(const nsCID &aClass,
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const char *aClassName,
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const char *aContractID,
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const char *aLibraryPersistentDescriptor,
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PRBool aReplace,
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PRBool aPersist);
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// Register a component using its FileSpec as its identification
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// This is the more prevalent use.
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static nsresult RegisterComponentSpec(const nsCID &aClass,
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const char *aClassName,
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const char *aContractID,
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nsIFile *aLibrary,
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PRBool aReplace,
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PRBool aPersist);
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// Register a component using its dllName. This could be a dll name with
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// no path so that LD_LIBRARY_PATH on unix or PATH on win can load it. Or
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// this could be a code fragment name on the Mac.
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static nsresult RegisterComponentLib(const nsCID &aClass,
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const char *aClassName,
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const char *aContractID,
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const char *adllName,
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PRBool aReplace,
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PRBool aPersist);
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// Manually unregister a factory for a class
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static nsresult UnregisterFactory(const nsCID &aClass,
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nsIFactory *aFactory);
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// Manually unregister a dynamically loaded component
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static nsresult UnregisterComponent(const nsCID &aClass,
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const char *aLibrary);
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// Manually unregister a dynamically loaded component
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static nsresult UnregisterComponentSpec(const nsCID &aClass,
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nsIFile *aLibrarySpec);
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// Unload dynamically loaded factories that are not in use
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static nsresult FreeLibraries(void);
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//////////////////////////////////////////////////////////////////////////////
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// DLL registration support
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// If directory is NULL, then AutoRegister will try registering components
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// in the default components directory.
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static nsresult AutoRegister(PRInt32 when, nsIFile* directory);
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static nsresult AutoRegisterComponent(PRInt32 when, nsIFile *component);
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static nsresult AutoUnregisterComponent(PRInt32 when, nsIFile *component);
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// Is the given CID currently registered?
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static nsresult IsRegistered(const nsCID &aClass,
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PRBool *aRegistered);
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// Get an enumeration of all the CIDs
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static nsresult EnumerateCLSIDs(nsIEnumerator** aEmumerator);
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// Get an enumeration of all the ContractIDs
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static nsresult EnumerateContractIDs(nsIEnumerator** aEmumerator);
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};
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class NS_COM nsCreateInstanceByCID : public nsCOMPtr_helper
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{
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public:
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nsCreateInstanceByCID( const nsCID& aCID, nsISupports* aOuter, nsresult* aErrorPtr )
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: mCID(aCID),
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mOuter(aOuter),
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mErrorPtr(aErrorPtr)
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{
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// nothing else to do here
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}
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virtual nsresult operator()( const nsIID&, void** ) const;
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private:
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const nsCID& mCID;
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nsISupports* mOuter;
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nsresult* mErrorPtr;
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};
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class NS_COM nsCreateInstanceByContractID : public nsCOMPtr_helper
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{
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public:
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nsCreateInstanceByContractID( const char* aContractID, nsISupports* aOuter, nsresult* aErrorPtr )
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: mContractID(aContractID),
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mOuter(aOuter),
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mErrorPtr(aErrorPtr)
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{
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// nothing else to do here
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}
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virtual nsresult operator()( const nsIID&, void** ) const;
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private:
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const char* mContractID;
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nsISupports* mOuter;
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nsresult* mErrorPtr;
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};
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class NS_COM nsCreateInstanceFromCategory : public nsCOMPtr_helper
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{
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public:
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nsCreateInstanceFromCategory(const char *aCategory, const char *aEntry,
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nsISupports *aOuter, nsresult *aErrorPtr)
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: mCategory(aCategory),
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mEntry(aEntry),
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mErrorPtr(aErrorPtr)
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{
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// nothing else to do;
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}
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virtual nsresult operator()( const nsIID&, void** ) const;
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virtual ~nsCreateInstanceFromCategory() {};
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private:
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const char *mCategory;
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const char *mEntry;
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nsISupports *mOuter;
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nsresult *mErrorPtr;
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};
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inline
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const nsCreateInstanceByCID
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do_CreateInstance( const nsCID& aCID, nsresult* error = 0 )
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{
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return nsCreateInstanceByCID(aCID, 0, error);
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}
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inline
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const nsCreateInstanceByCID
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do_CreateInstance( const nsCID& aCID, nsISupports* aOuter, nsresult* error = 0 )
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{
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return nsCreateInstanceByCID(aCID, aOuter, error);
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}
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inline
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const nsCreateInstanceByContractID
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do_CreateInstance( const char* aContractID, nsresult* error = 0 )
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{
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return nsCreateInstanceByContractID(aContractID, 0, error);
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}
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inline
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const nsCreateInstanceByContractID
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do_CreateInstance( const char* aContractID, nsISupports* aOuter, nsresult* error = 0 )
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{
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return nsCreateInstanceByContractID(aContractID, aOuter, error);
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}
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inline
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const nsCreateInstanceFromCategory
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do_CreateInstanceFromCategory( const char *aCategory, const char *aEntry,
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nsresult *aErrorPtr = 0)
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{
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return nsCreateInstanceFromCategory(aCategory, aEntry, 0, aErrorPtr);
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}
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inline
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const nsCreateInstanceFromCategory
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do_CreateInstanceFromCategory( const char *aCategory, const char *aEntry,
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nsISupports *aOuter, nsresult *aErrorPtr = 0)
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{
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return nsCreateInstanceFromCategory(aCategory, aEntry, aOuter, aErrorPtr);
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}
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/* keys for registry use */
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extern const char xpcomKeyName[];
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extern const char xpcomComponentsKeyName[];
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extern const char lastModValueName[];
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extern const char fileSizeValueName[];
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extern const char nativeComponentType[];
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#endif /* nsComponentManagerUtils_h__ */
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