gecko-dev/xpcom/glue/nsComponentManagerUtils.cpp

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#ifndef nsXPCOM_h__
#include "nsXPCOM.h"
#endif

#ifndef nsCOMPtr_h__
#include "nsCOMPtr.h"
#endif

#include "nsComponentManagerUtils.h"
#include "nsIServiceManagerUtils.h"

nsresult
nsCreateInstanceByCID::operator()( const nsIID& aIID, void** aInstancePtr ) const
{
    nsCOMPtr<nsIComponentManager> compMgr;
    NS_GetComponentManager(getter_AddRefs(compMgr));
    if (!compMgr)
        return NS_ERROR_FAILURE;
    nsresult status = compMgr->CreateInstance(mCID, 
                                              mOuter, 
                                              aIID, 
                                              aInstancePtr);
    if ( NS_FAILED(status) )
        *aInstancePtr = 0;
    
    if ( mErrorPtr )
        *mErrorPtr = status;
    return status;
}

nsresult
nsCreateInstanceByContractID::operator()( const nsIID& aIID, void** aInstancePtr ) const
{
    nsresult status;
    if ( mContractID ) {
        nsCOMPtr<nsIComponentManager> compMgr;
        NS_GetComponentManager(getter_AddRefs(compMgr));
        if (!compMgr)
            return NS_ERROR_FAILURE;
        nsresult status = compMgr->CreateInstanceByContractID(mContractID, 
                                                              mOuter, 
                                                              aIID, 
                                                              aInstancePtr);
        if (NS_FAILED(status))
            *aInstancePtr = 0;
    }
    else
        status = NS_ERROR_NULL_POINTER;
    
    if ( mErrorPtr )
        *mErrorPtr = status;
    return status;
}


nsresult
nsGetServiceByCID::operator()( const nsIID& aIID, void** aInstancePtr ) const
{
    nsresult status = NS_ERROR_FAILURE;
    if ( mServiceManager ) {
        status = mServiceManager->GetService(mCID, aIID, (void**)aInstancePtr);
    } else {
        nsCOMPtr<nsIServiceManager> mgr;
        NS_GetServiceManager(getter_AddRefs(mgr));
        if (mgr)
            status = mgr->GetService(mCID, aIID, (void**)aInstancePtr);
    }
    if ( NS_FAILED(status) )
        *aInstancePtr = 0;
    
    if ( mErrorPtr )
        *mErrorPtr = status;
    return status;
}

nsresult
nsGetServiceByContractID::operator()( const nsIID& aIID, void** aInstancePtr ) const
{
    nsresult status = NS_ERROR_FAILURE;
    if ( mServiceManager ) {
        status = mServiceManager->GetServiceByContractID(mContractID, aIID, (void**)aInstancePtr);
    } else {
        nsCOMPtr<nsIServiceManager> mgr;
        NS_GetServiceManager(getter_AddRefs(mgr));
        if (mgr)
            status = mgr->GetServiceByContractID(mContractID, aIID, (void**)aInstancePtr);
    }
    
    if ( NS_FAILED(status) )
        *aInstancePtr = 0;
    
    if ( mErrorPtr )
        *mErrorPtr = status;
    return status;
}