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Add CallCreateInstance and CallGetService. b=87735 r=jaggernaut sr=scc

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This commit is contained in:
dbaron%fas.harvard.edu 2001-07-04 18:55:14 +00:00
parent 17bc9725da
commit 1758134ebc
3 changed files with 154 additions and 1 deletions
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57
xpcom/components/nsComponentManagerUtils.h
View File

@ -281,6 +281,63 @@ do_CreateInstanceFromCategory( const char *aCategory, const char *aEntry,
return nsCreateInstanceFromCategory(aCategory, aEntry, aOuter, aErrorPtr);
}
// type-safe shortcuts for calling |CreateInstance|
template <class DestinationType>
inline
nsresult
CallCreateInstance( const nsCID &aClass,
nsISupports *aDelegate,
DestinationType** aDestination )
{
NS_PRECONDITION(aDestination, "null parameter");
return nsComponentManager::CreateInstance(aClass, aDelegate,
NS_GET_IID(DestinationType),
NS_REINTERPRET_CAST(void**, aDestination));
}
template <class DestinationType>
inline
nsresult
CallCreateInstance( const nsCID &aClass,
DestinationType** aDestination )
{
NS_PRECONDITION(aDestination, "null parameter");
return nsComponentManager::CreateInstance(aClass, nsnull,
NS_GET_IID(DestinationType),
NS_REINTERPRET_CAST(void**, aDestination));
}
template <class DestinationType>
inline
nsresult
CallCreateInstance( const char *aContractID,
nsISupports *aDelegate,
DestinationType** aDestination )
{
NS_PRECONDITION(aContractID, "null parameter");
NS_PRECONDITION(aDestination, "null parameter");
return nsComponentManager::CreateInstance(aContractID, aDelegate,
NS_GET_IID(DestinationType),
NS_REINTERPRET_CAST(void**, aDestination));
}
template <class DestinationType>
inline
nsresult
CallCreateInstance( const char *aContractID,
DestinationType** aDestination )
{
NS_PRECONDITION(aContractID, "null parameter");
NS_PRECONDITION(aDestination, "null parameter");
return nsComponentManager::CreateInstance(aContractID, nsnull,
NS_GET_IID(DestinationType),
NS_REINTERPRET_CAST(void**, aDestination));
}
/* keys for registry use */
extern const char xpcomKeyName[];
extern const char xpcomComponentsKeyName[];

41
xpcom/components/nsIServiceManager.h
View File

@ -318,6 +318,37 @@ do_GetServiceFromCategory( const char* category, const char* entry,
return nsGetServiceFromCategory(category, entry, 0, error);
}
// type-safe shortcuts for calling |GetService|
template <class DestinationType>
inline
nsresult
CallGetService( const nsCID &aClass,
DestinationType** aDestination,
nsIShutdownListener* shutdownListener = nsnull)
{
NS_PRECONDITION(aDestination, "null parameter");
return nsServiceManager::GetService(aClass,
NS_GET_IID(DestinationType),
NS_REINTERPRET_CAST(nsISupports**, aDestination),
shutdownListener);
}
template <class DestinationType>
inline
nsresult
CallGetService( const char *aContractID,
DestinationType** aDestination,
nsIShutdownListener* shutdownListener = nsnull)
{
NS_PRECONDITION(aContractID, "null parameter");
NS_PRECONDITION(aDestination, "null parameter");
return nsServiceManager::GetService(aContractID,
NS_GET_IID(DestinationType),
NS_REINTERPRET_CAST(nsISupports**, aDestination),
shutdownListener);
}
////////////////////////////////////////////////////////////////////////////////
// NS_WITH_SERVICE: macro to make using services easier.
//
@ -326,7 +357,15 @@ do_GetServiceFromCategory( const char* category, const char* entry,
//
// NOTE: ReleaseService() is OBSOLETE.
//
// Now you can replace this:
// NOTE: NS_WITH_SERVICE is deprecated. This:
// {
// nsCOMPtr<nsIMyService> service( do_GetService(NS_MYSERVICE_CONTRACTID, &rv) );
// if (NS_FAILED(rv)) return rv;
// service->Doit(...); // use my service
// }
// is preferred over either of the blocks of code below.
//
// Back when NS_WITH_SERVICE wasn't deprecated you could replace this:
// {
// nsIMyService* service;
// rv = nsServiceManager::GetService(kMyServiceCID, NS_GET_IID(nsIMyService),

57
xpcom/glue/nsComponentManagerUtils.h
View File

@ -281,6 +281,63 @@ do_CreateInstanceFromCategory( const char *aCategory, const char *aEntry,
return nsCreateInstanceFromCategory(aCategory, aEntry, aOuter, aErrorPtr);
}
// type-safe shortcuts for calling |CreateInstance|
template <class DestinationType>
inline
nsresult
CallCreateInstance( const nsCID &aClass,
nsISupports *aDelegate,
DestinationType** aDestination )
{
NS_PRECONDITION(aDestination, "null parameter");
return nsComponentManager::CreateInstance(aClass, aDelegate,
NS_GET_IID(DestinationType),
NS_REINTERPRET_CAST(void**, aDestination));
}
template <class DestinationType>
inline
nsresult
CallCreateInstance( const nsCID &aClass,
DestinationType** aDestination )
{
NS_PRECONDITION(aDestination, "null parameter");
return nsComponentManager::CreateInstance(aClass, nsnull,
NS_GET_IID(DestinationType),
NS_REINTERPRET_CAST(void**, aDestination));
}
template <class DestinationType>
inline
nsresult
CallCreateInstance( const char *aContractID,
nsISupports *aDelegate,
DestinationType** aDestination )
{
NS_PRECONDITION(aContractID, "null parameter");
NS_PRECONDITION(aDestination, "null parameter");
return nsComponentManager::CreateInstance(aContractID, aDelegate,
NS_GET_IID(DestinationType),
NS_REINTERPRET_CAST(void**, aDestination));
}
template <class DestinationType>
inline
nsresult
CallCreateInstance( const char *aContractID,
DestinationType** aDestination )
{
NS_PRECONDITION(aContractID, "null parameter");
NS_PRECONDITION(aDestination, "null parameter");
return nsComponentManager::CreateInstance(aContractID, nsnull,
NS_GET_IID(DestinationType),
NS_REINTERPRET_CAST(void**, aDestination));
}
/* keys for registry use */
extern const char xpcomKeyName[];
extern const char xpcomComponentsKeyName[];