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;
    nsresult status = NS_GetComponentManager(getter_AddRefs(compMgr));
    if (compMgr)
        status = compMgr->CreateInstance(mCID, mOuter, aIID, aInstancePtr);
    else if (NS_SUCCEEDED(status))
        status = NS_ERROR_UNEXPECTED;

    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;
        status = NS_GetComponentManager(getter_AddRefs(compMgr));
        if (compMgr)
            status = compMgr->CreateInstanceByContractID(mContractID, mOuter,
                                                         aIID, aInstancePtr);
        else if (NS_SUCCEEDED(status))
            status = NS_ERROR_UNEXPECTED;
    }
    else
        status = NS_ERROR_NULL_POINTER;
    
    if (NS_FAILED(status))
        *aInstancePtr = 0;
    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;
}