gecko/netwerk/protocol/about/nsAboutProtocolUtils.h

50 lines
1.4 KiB
C

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsIURI.h"
#include "nsString.h"
#include "nsReadableUtils.h"
#include "nsIAboutModule.h"
#include "nsServiceManagerUtils.h"
inline nsresult
NS_GetAboutModuleName(nsIURI *aAboutURI, nsCString& aModule)
{
#ifdef DEBUG
{
bool isAbout;
NS_ASSERTION(NS_SUCCEEDED(aAboutURI->SchemeIs("about", &isAbout)) &&
isAbout,
"should be used only on about: URIs");
}
#endif
nsresult rv = aAboutURI->GetPath(aModule);
NS_ENSURE_SUCCESS(rv, rv);
int32_t f = aModule.FindCharInSet(NS_LITERAL_CSTRING("#?"));
if (f != kNotFound) {
aModule.Truncate(f);
}
// convert to lowercase, as all about: modules are lowercase
ToLowerCase(aModule);
return NS_OK;
}
inline nsresult
NS_GetAboutModule(nsIURI *aAboutURI, nsIAboutModule** aModule)
{
NS_PRECONDITION(aAboutURI, "Must have URI");
nsAutoCString contractID;
nsresult rv = NS_GetAboutModuleName(aAboutURI, contractID);
if (NS_FAILED(rv)) return rv;
// look up a handler to deal with "what"
contractID.Insert(NS_LITERAL_CSTRING(NS_ABOUT_MODULE_CONTRACTID_PREFIX), 0);
return CallGetService(contractID.get(), aModule);
}