gecko/uriloader/exthandler/unix/nsGNOMERegistry.cpp
2010-02-09 11:02:11 -08:00

213 lines
7.0 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is the GNOME helper app implementation.
*
* The Initial Developer of the Original Code is
* IBM Corporation.
* Portions created by the Initial Developer are Copyright (C) 2003
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Brian Ryner <bryner@brianryner.com> (Original Author)
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "nsGNOMERegistry.h"
#include "prlink.h"
#include "prmem.h"
#include "nsString.h"
#include "nsIComponentManager.h"
#include "nsILocalFile.h"
#include "nsMIMEInfoUnix.h"
#include "nsAutoPtr.h"
#include "nsIGConfService.h"
#include "nsIGnomeVFSService.h"
#include "nsIGIOService.h"
#ifdef MOZ_WIDGET_GTK2
#include <glib.h>
#include <glib-object.h>
#endif
#ifdef MOZ_PLATFORM_MAEMO
#include <libintl.h>
#endif
/* static */ PRBool
nsGNOMERegistry::HandlerExists(const char *aProtocolScheme)
{
nsCOMPtr<nsIGConfService> gconf = do_GetService(NS_GCONFSERVICE_CONTRACTID);
if (!gconf)
return PR_FALSE;
PRBool isEnabled;
nsCAutoString handler;
if (NS_FAILED(gconf->GetAppForProtocol(nsDependentCString(aProtocolScheme), &isEnabled, handler)))
return PR_FALSE;
return isEnabled;
}
// XXX Check HandlerExists() before calling LoadURL.
//
// If there is not a registered handler for the protocol, gnome_url_show()
// falls back to using gnomevfs modules. See bug 389632. We don't want
// this fallback to happen as we are not sure of the safety of all gnomevfs
// modules and MIME-default applications. (gnomevfs should be handled in
// nsGnomeVFSProtocolHandler.)
/* static */ nsresult
nsGNOMERegistry::LoadURL(nsIURI *aURL)
{
nsCOMPtr<nsIGIOService> giovfs = do_GetService(NS_GIOSERVICE_CONTRACTID);
nsCOMPtr<nsIGnomeVFSService> gnomevfs = do_GetService(NS_GNOMEVFSSERVICE_CONTRACTID);
if (giovfs) {
return giovfs->ShowURI(aURL);
} else if (gnomevfs) {
/* Fallback to GnomeVFS */
return gnomevfs->ShowURI(aURL);
}
return NS_ERROR_FAILURE;
}
/* static */ void
nsGNOMERegistry::GetAppDescForScheme(const nsACString& aScheme,
nsAString& aDesc)
{
nsCOMPtr<nsIGConfService> gconf = do_GetService(NS_GCONFSERVICE_CONTRACTID);
if (!gconf)
return;
PRBool isEnabled;
nsCAutoString app;
if (NS_FAILED(gconf->GetAppForProtocol(aScheme, &isEnabled, app)))
return;
if (!app.IsEmpty()) {
// Try to only provide the executable name, as it is much simpler than with the path and arguments
PRInt32 firstSpace = app.FindChar(' ');
if (firstSpace != kNotFound) {
app.Truncate(firstSpace);
PRInt32 lastSlash = app.RFindChar('/');
if (lastSlash != kNotFound) {
app.Cut(0, lastSlash + 1);
}
}
CopyUTF8toUTF16(app, aDesc);
}
}
/* static */ already_AddRefed<nsMIMEInfoBase>
nsGNOMERegistry::GetFromExtension(const nsACString& aFileExt)
{
NS_ASSERTION(aFileExt[0] != '.', "aFileExt shouldn't start with a dot");
nsCAutoString mimeType;
nsCOMPtr<nsIGnomeVFSService> gnomevfs = do_GetService(NS_GNOMEVFSSERVICE_CONTRACTID);
nsCOMPtr<nsIGIOService> giovfs = do_GetService(NS_GIOSERVICE_CONTRACTID);
if (!gnomevfs && !giovfs)
return nsnull;
if (giovfs) {
// 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 nsnull;
} else if (gnomevfs) {
/* Fallback to GnomeVFS */
if (NS_FAILED(gnomevfs->GetMimeTypeFromExtension(aFileExt, mimeType)) ||
mimeType.EqualsLiteral("application/octet-stream"))
return nsnull;
}
return GetFromType(mimeType);
}
/* static */ already_AddRefed<nsMIMEInfoBase>
nsGNOMERegistry::GetFromType(const nsACString& aMIMEType)
{
nsCOMPtr<nsIGIOService> giovfs = do_GetService(NS_GIOSERVICE_CONTRACTID);
nsCOMPtr<nsIGnomeVFSService> gnomevfs = do_GetService(NS_GNOMEVFSSERVICE_CONTRACTID);
nsCOMPtr<nsIGIOMimeApp> gioHandlerApp;
nsCOMPtr<nsIGnomeVFSMimeApp> gnomeHandlerApp;
if (!giovfs && !gnomevfs)
return nsnull;
if (giovfs) {
if (NS_FAILED(giovfs->GetAppForMimeType(aMIMEType, getter_AddRefs(gioHandlerApp))) ||
!gioHandlerApp)
return nsnull;
} else {
/* Fallback to GnomeVFS*/
if (NS_FAILED(gnomevfs->GetAppForMimeType(aMIMEType, getter_AddRefs(gnomeHandlerApp))) ||
!gnomeHandlerApp)
return nsnull;
}
nsRefPtr<nsMIMEInfoUnix> mimeInfo = new nsMIMEInfoUnix(aMIMEType);
NS_ENSURE_TRUE(mimeInfo, nsnull);
nsCAutoString description;
if (giovfs)
giovfs->GetDescriptionForMimeType(aMIMEType, description);
else
gnomevfs->GetDescriptionForMimeType(aMIMEType, description);
mimeInfo->SetDescription(NS_ConvertUTF8toUTF16(description));
nsCAutoString name;
if (giovfs)
gioHandlerApp->GetName(name);
else
gnomeHandlerApp->GetName(name);
#ifdef MOZ_PLATFORM_MAEMO
// On Maemo/Hildon, GetName ends up calling gnome_vfs_mime_application_get_name,
// which happens to return a non-localized message-id for the application. To
// get the localized name for the application, we have to call dgettext with
// the default maemo domain-name to try and translate the string into the operating
// system's native language.
const char kDefaultTextDomain [] = "maemo-af-desktop";
nsCAutoString realName (dgettext(kDefaultTextDomain, PromiseFlatCString(name).get()));
mimeInfo->SetDefaultDescription(NS_ConvertUTF8toUTF16(realName));
#else
mimeInfo->SetDefaultDescription(NS_ConvertUTF8toUTF16(name));
#endif
mimeInfo->SetPreferredAction(nsIMIMEInfo::useSystemDefault);
nsMIMEInfoBase* retval;
NS_ADDREF((retval = mimeInfo));
return retval;
}