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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** 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.org Code.
 *
 * The Initial Developer of the Original Code is
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 1998
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either of 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 ***** */

#include "nsISupports.idl"
#include "nsIFactory.idl"

interface nsIFile;
interface nsIEnumerator;

[scriptable, uuid(8458a740-d5dc-11d2-92fb-00e09805570f)]
interface nsIComponentManagerObsolete : nsISupports
{
    /**
     * findFactory
     *
     * Returns the factory object that can be used to create instances of
     * CID aClass
     *
     * @param aClass The classid of the factory that is being requested
     */
    nsIFactory findFactory(in nsCIDRef aClass);

    /**
     * getClassObject
     *
     * @param aClass : CID of the class whose class object is requested
     * @param aIID : IID of an interface that the class object is known to
     *               to implement. nsISupports and nsIFactory are known to
     *               be implemented by the class object.
     */
    [noscript] voidPtr getClassObject(in nsCIDRef aClass, in nsIIDRef aIID);

    /**
     * contractIDToClassID
     *
     * Get the ClassID for a given ContractID. Many ClassIDs may implement a
     * ContractID. In such a situation, this returns the preferred ClassID, which
     * happens to be the last registered ClassID.
     * 
     * @param aContractID : Contractid for which ClassID is requested
     * @return aClass : ClassID return
     */
    [notxpcom] nsresult contractIDToClassID(in string aContractID, out nsCID aClass);

    /**
     * classIDToContractid
     *
     * Get the ContractID for a given ClassID. A ClassIDs may implement multiple
     * ContractIDs. This function return the last registered ContractID.
     *
     * @param aClass : ClassID for which ContractID is requested.
     * @return aClassName : returns class name asssociated with aClass
     * @return : ContractID last registered for aClass
     */
    string CLSIDToContractID(in nsCIDRef aClass, out string aClassName);

    /**
     * createInstance
     *
     * Create an instance of the CID aClass and return the interface aIID.
     *
     * @param aClass : ClassID of object instance requested
     * @param aDelegate : Used for aggregation
     * @param aIID : IID of interface requested
     */
    [noscript] voidPtr createInstance(in nsCIDRef aClass,
                                      in nsISupports aDelegate,
                                      in nsIIDRef aIID);

    /**
     * createInstanceByContractID
     *
     * Create an instance of the CID that implements aContractID and return the
     * interface aIID. This is a convenience function that effectively does
     * ContractIDToClassID() followed by CreateInstance().
     *
     * @param aContractID : aContractID of object instance requested
     * @param aDelegate : Used for aggregation
     * @param aIID : IID of interface requested
     */
    [noscript] voidPtr createInstanceByContractID(in string aContractID,
                                              in nsISupports aDelegate,
                                              in nsIIDRef IID);
    /**
     * registryLocationForSpec
     *
     * Given a file specification, return the registry representation of
     * the filename. Files that are found relative to the components
     * directory will have a registry representation
     * "rel:<relative-native-path>" while filenames that are not, will have
     * "abs:<full-native-path>".
     */
    string registryLocationForSpec(in nsIFile aSpec);

    /**
     * specForRegistyLocation
     *
     * Create a file specification for the registry representation (rel:/abs:)
     * got via registryLocationForSpec.
     */
    nsIFile specForRegistryLocation(in string aLocation);
    
    /**
     * registerFactory
     *
     * Register a factory and ContractID associated with CID aClass
     *
     * @param aClass : CID of object
     * @param aClassName : Class Name of CID
     * @param aContractID : ContractID associated with CID aClass
     * @param aFactory : Factory that will be registered for CID aClass
     * @param aReplace : Boolean that indicates whether to replace a previous
     *                   registration for the CID aClass.
     */
    void registerFactory(in nsCIDRef aClass, in string aClassName,
                         in string aContractID, in nsIFactory aFactory,
                         in boolean aReplace);

    /**
     * registerComponent
     *
     * Register a native dll module via its registry representation as returned
     * by registryLocationForSpec() as the container of CID implemenation
     * aClass and associate aContractID and aClassName to the CID aClass. Native
     * dll component type is assumed.
     *
     * @param aClass : CID implemenation contained in module
     * @param aClassName : Class name associated with CID aClass
     * @param aContractID : ContractID associated with CID aClass
     * @param aLocation : Location of module (dll). Format of this is the
     *                    registry representation as returned by
     *                    registryLocationForSpec()
     * @param aReplace : Boolean that indicates whether to replace a previous
     *                   module registration for aClass.
     * @param aPersist : Remember this registration across sessions.
     */
    void registerComponent(in nsCIDRef aClass, in string aClassName,
                           in string aContractID, in string aLocation,
                           in boolean aReplace, in boolean aPersist);

    /**
     * registerComponentWithType
     *
     * Register a module's location via its registry representation
     * as returned by registryLocationForSpec() as the container of CID implemenation
     * aClass of type aType and associate aContractID and aClassName to the CID aClass.
     *
     * @param aClass : CID implemenation contained in module
     * @param aClassName : Class name associated with CID aClass
     * @param aContractID : ContractID associated with CID aClass
     * @param aSpec : Filename spec for module's location.
     * @param aLocation : Location of module of type aType. Format of this string
     *                    is the registry representation as returned by
     *                    registryLocationForSpec()
     * @param aReplace : Boolean that indicates whether to replace a previous
     *                   loader registration for aClass.
     * @param aPersist : Remember this registration across sessions.
     * @param aType : Component Type of CID aClass.
     */
    void registerComponentWithType(in nsCIDRef aClass, in string aClassName,
                                   in string aContractID, in nsIFile aSpec,
                                   in string aLocation, in boolean aReplace,
                                   in boolean aPersist, in string aType);

    /**
     * registerComponentSpec
     *
     * Register a native dll module via its file specification as the container
     * of CID implemenation aClass and associate aContractID and aClassName to the
     * CID aClass. Native dll component type is assumed.
     *
     * @param aClass : CID implemenation contained in module
     * @param aClassName : Class name associated with CID aClass
     * @param aContractID : ContractID associated with CID aClass
     * @param aLibrary : File specification Location of module (dll).
     * @param aReplace : Boolean that indicates whether to replace a previous
     *                   module registration for aClass.
     * @param aPersist : Remember this registration across sessions.
     */
    void registerComponentSpec(in nsCIDRef aClass, in string aClassName,
                               in string aContractID, in nsIFile aLibrary,
                               in boolean aReplace, in boolean aPersist);

    /**
     * registerComponentLib
     *
     * Register a native dll module via its dll name (not full path) as the
     * container of CID implemenation aClass and associate aContractID and aClassName
     * to the CID aClass. Native dll component type is assumed and the system
     * services will be used to load this dll.
     *
     * @param aClass : CID implemenation contained in module
     * @param aClassName : Class name associated with CID aClass
     * @param aContractID : ContractID associated with CID aClass
     * @param aDllNameLocation : Dll name of module.
     * @param aReplace : Boolean that indicates whether to replace a previous
     *                   module registration for aClass.
     * @param aPersist : Remember this registration across sessions.
     */
    void registerComponentLib(in nsCIDRef aClass, in string aClassName,
                              in string aContractID, in string aDllName,
                              in boolean aReplace, in boolean aPersist);

    /**
     * unregisterFactory
     *
     * Unregister a factory associated with CID aClass.
     *
     * @param aClass : ClassID being unregistered
     * @param aFactory : Factory previously registered to create instances of
     *                   ClassID aClass.
     */    
    void unregisterFactory(in nsCIDRef aClass, in nsIFactory aFactory);

    /**
     * unregisterComponent
     *
     * Disassociate module aLocation represented as registry location as returned
     * by registryLocationForSpec() as containing ClassID aClass.
     *
     * @param aClass : ClassID being unregistered
     * @param aLocation : Location of module. Format of this is the registry
     *                    representation as returned by registryLocationForSpec().
     *                    Components of any type will be unregistered.
     */
    void unregisterComponent(in nsCIDRef aClass, in string aLocation);

    /**
     * unregisterComponentSpec
     *
     * Disassociate module references by file specification aLibrarySpec as
     * containing ClassID aClass.
     */
    void unregisterComponentSpec(in nsCIDRef aClass, in nsIFile aLibrarySpec);

    /**
     * freeLibraries
     *
     * Enumerates all loaded modules and unloads unused modules.
     */
    void freeLibraries();

    /**
     * ID values for 'when'
     */
    const long NS_Startup = 0;
    const long NS_Script = 1;
    const long NS_Timer = 2;
    const long NS_Shutdown = 3;

    /**
     * autoRegister
     *
     * Enumerates directory looking for modules of all types and registers
     * modules who have changed (modtime or size) since the last time
     * autoRegister() was invoked.
     *
     * @param when : ID values of when the call is being made.
     * @param directory : Directory the will be enumerated.
     */
    void autoRegister(in long when, in nsIFile directory);

    /**
     * autoRegisterComponent
     *
     * Loads module using appropriate loader and gives it an opportunity to
     * register its CIDs if module's modtime or size changed since the last
     * time this was called.
     *
     * @param when : ID values of when the call is being made.
     * @param aFileLocation : File specification of module.
     */
    void autoRegisterComponent(in long when, in nsIFile aFileLocation);

    /**
     * autoUnregisterComponent
     *
     * Loads module using approriate loader and gives it an opportunity to
     * unregister its CIDs
     */
    void autoUnregisterComponent(in long when, in nsIFile aFileLocation);

    /**
     * isRegistered
     *
     * Returns true if a factory or module is registered for CID aClass.
     *
     * @param aClass : ClassID queried for registeration
     * @return : true if a factory or module is registered for CID aClass.
     *           false otherwise.
     */
    boolean isRegistered(in nsCIDRef aClass);

    /**
     * enumerateCLSIDs
     *
     * Enumerate the list of all registered ClassIDs.
     *
     * @return : enumerator for ClassIDs.
     */
    nsIEnumerator enumerateCLSIDs();

    /**
     * enumerateContractIDs
     *
     * Enumerate the list of all registered ContractIDs.
     *
     * @return : enumerator for ContractIDs.
     */
    nsIEnumerator enumerateContractIDs();
};

%{ C++
/* include after the class def'n, because it needs to see it. */
#include "nsComponentManagerUtils.h"
%} C++