michael@0: #ifndef Converters_h___
michael@0: #define Converters_h___
michael@0: 
michael@0: #include "nsIStreamConverter.h"
michael@0: #include "nsIFactory.h"
michael@0: #include "nsCOMPtr.h"
michael@0: #include "nsStringAPI.h"
michael@0: 
michael@0: #include <algorithm>
michael@0: 
michael@0: /* This file defines stream converter components, and their accompanying factory class.
michael@0:  * These converters implement the nsIStreamConverter interface and support both
michael@0:  * asynchronous and synchronous stream conversion.
michael@0:  */
michael@0: 
michael@0: ///////////////////////////////////////////////
michael@0: // TestConverter
michael@0: 
michael@0: extern const nsCID kTestConverterCID;
michael@0: 
michael@0: class TestConverter : public nsIStreamConverter {
michael@0: public:
michael@0:     NS_DECL_ISUPPORTS
michael@0:     NS_DECL_NSIREQUESTOBSERVER
michael@0:     NS_DECL_NSISTREAMLISTENER
michael@0: 
michael@0:     TestConverter();
michael@0:     virtual ~TestConverter() {}
michael@0: 
michael@0:     // nsIStreamConverter methods
michael@0:     NS_IMETHOD Convert(nsIInputStream *aFromStream, const char *aFromType, 
michael@0:                        const char *aToType, nsISupports *ctxt, nsIInputStream **_retval);
michael@0: 
michael@0: 
michael@0:     NS_IMETHOD AsyncConvertData(const char *aFromType, const char *aToType, 
michael@0:                                 nsIStreamListener *aListener, nsISupports *ctxt);
michael@0: 
michael@0:     // member data
michael@0:     nsCOMPtr<nsIStreamListener> mListener;
michael@0:     nsCString fromType;
michael@0:     nsCString toType;
michael@0: };
michael@0: 
michael@0: nsresult CreateTestConverter(nsISupports* aOuter, REFNSIID aIID, void** aResult);
michael@0: 
michael@0: static inline uint32_t
michael@0: saturated(uint64_t aValue)
michael@0: {
michael@0:     return (uint32_t) std::min(aValue, (uint64_t) UINT32_MAX);
michael@0: }
michael@0: 
michael@0: #endif /* !Converters_h___ */