gecko-dev/xpcom/components/nsCategoryManagerUtils.h

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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#ifndef nsCategoryManagerUtils_h__
#define nsCategoryManagerUtils_h__
#include "nsICategoryManager.h"
#include "nsCOMPtr.h"
NS_COM nsresult
NS_CreateServicesFromCategory(const char *category,
nsISupports *origin,
const char *observerTopic);
class NS_COM nsCreateInstanceFromCategory : public nsCOMPtr_helper
{
public:
nsCreateInstanceFromCategory(const char *aCategory, const char *aEntry,
nsISupports *aOuter, nsresult *aErrorPtr)
: mCategory(aCategory),
mEntry(aEntry),
mErrorPtr(aErrorPtr)
{
// nothing else to do;
}
virtual nsresult operator()( const nsIID& aIID, void** aInstancePtr) const;
virtual ~nsCreateInstanceFromCategory() {};
private:
const char *mCategory; // Do not free. This char * is not owned.
const char *mEntry; // Do not free. This char * is not owned.
nsISupports *mOuter;
nsresult *mErrorPtr;
};
inline
const nsCreateInstanceFromCategory
do_CreateInstanceFromCategory( const char *aCategory, const char *aEntry,
nsresult *aErrorPtr = 0)
{
return nsCreateInstanceFromCategory(aCategory, aEntry, 0, aErrorPtr);
}
inline
const nsCreateInstanceFromCategory
do_CreateInstanceFromCategory( const char *aCategory, const char *aEntry,
nsISupports *aOuter, nsresult *aErrorPtr = 0)
{
return nsCreateInstanceFromCategory(aCategory, aEntry, aOuter, aErrorPtr);
}
#endif