gecko-dev/uriloader/exthandler/unix/nsGNOMERegistry.cpp

110 строки
3.0 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 "nsGNOMERegistry.h"
#include "nsString.h"
#include "nsIComponentManager.h"
#include "nsMIMEInfoUnix.h"
#include "nsAutoPtr.h"
#include "nsIGIOService.h"
/* static */ bool
nsGNOMERegistry::HandlerExists(const char *aProtocolScheme)
{
nsCOMPtr<nsIGIOService> giovfs = do_GetService(NS_GIOSERVICE_CONTRACTID);
if (!giovfs) {
return false;
}
nsCOMPtr<nsIGIOMimeApp> app;
return NS_SUCCEEDED(giovfs->GetAppForURIScheme(nsDependentCString(aProtocolScheme),
getter_AddRefs(app)));
}
// XXX Check HandlerExists() before calling LoadURL.
/* static */ nsresult
nsGNOMERegistry::LoadURL(nsIURI *aURL)
{
nsCOMPtr<nsIGIOService> giovfs = do_GetService(NS_GIOSERVICE_CONTRACTID);
if (!giovfs) {
return NS_ERROR_FAILURE;
}
return giovfs->ShowURI(aURL);
}
/* static */ void
nsGNOMERegistry::GetAppDescForScheme(const nsACString& aScheme,
nsAString& aDesc)
{
nsCOMPtr<nsIGIOService> giovfs = do_GetService(NS_GIOSERVICE_CONTRACTID);
if (!giovfs)
return;
nsAutoCString name;
nsCOMPtr<nsIGIOMimeApp> app;
if (NS_FAILED(giovfs->GetAppForURIScheme(aScheme, getter_AddRefs(app))))
return;
app->GetName(name);
CopyUTF8toUTF16(name, aDesc);
}
/* static */ already_AddRefed<nsMIMEInfoBase>
nsGNOMERegistry::GetFromExtension(const nsACString& aFileExt)
{
nsAutoCString mimeType;
nsCOMPtr<nsIGIOService> giovfs = do_GetService(NS_GIOSERVICE_CONTRACTID);
if (!giovfs) {
return nullptr;
}
// Get the MIME type from the extension, then call GetFromType to
// fill in the MIMEInfo.
if (NS_FAILED(giovfs->GetMimeTypeFromExtension(aFileExt, mimeType)) ||
mimeType.EqualsLiteral("application/octet-stream")) {
return nullptr;
}
RefPtr<nsMIMEInfoBase> mi = GetFromType(mimeType);
if (mi) {
mi->AppendExtension(aFileExt);
}
return mi.forget();
}
/* static */ already_AddRefed<nsMIMEInfoBase>
nsGNOMERegistry::GetFromType(const nsACString& aMIMEType)
{
RefPtr<nsMIMEInfoUnix> mimeInfo = new nsMIMEInfoUnix(aMIMEType);
NS_ENSURE_TRUE(mimeInfo, nullptr);
nsAutoCString name;
nsAutoCString description;
nsCOMPtr<nsIGIOService> giovfs = do_GetService(NS_GIOSERVICE_CONTRACTID);
if (!giovfs) {
return nullptr;
}
nsCOMPtr<nsIGIOMimeApp> gioHandlerApp;
if (NS_FAILED(giovfs->GetAppForMimeType(aMIMEType, getter_AddRefs(gioHandlerApp))) ||
!gioHandlerApp) {
return nullptr;
}
gioHandlerApp->GetName(name);
giovfs->GetDescriptionForMimeType(aMIMEType, description);
mimeInfo->SetDefaultDescription(NS_ConvertUTF8toUTF16(name));
mimeInfo->SetPreferredAction(nsIMIMEInfo::useSystemDefault);
mimeInfo->SetDescription(NS_ConvertUTF8toUTF16(description));
return mimeInfo.forget();
}