michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "mozilla/ArrayUtils.h"
michael@0: 
michael@0: #include "nsCOMPtr.h"
michael@0: #include "nsGNOMEShellService.h"
michael@0: #include "nsShellService.h"
michael@0: #include "nsIServiceManager.h"
michael@0: #include "nsIFile.h"
michael@0: #include "nsIProperties.h"
michael@0: #include "nsDirectoryServiceDefs.h"
michael@0: #include "nsIPrefService.h"
michael@0: #include "prenv.h"
michael@0: #include "nsStringAPI.h"
michael@0: #include "nsIGConfService.h"
michael@0: #include "nsIGIOService.h"
michael@0: #include "nsIGSettingsService.h"
michael@0: #include "nsIStringBundle.h"
michael@0: #include "nsIOutputStream.h"
michael@0: #include "nsIProcess.h"
michael@0: #include "nsNetUtil.h"
michael@0: #include "nsIDOMHTMLImageElement.h"
michael@0: #include "nsIImageLoadingContent.h"
michael@0: #include "imgIRequest.h"
michael@0: #include "imgIContainer.h"
michael@0: #include "prprf.h"
michael@0: #if defined(MOZ_WIDGET_GTK)
michael@0: #include "nsIImageToPixbuf.h"
michael@0: #endif
michael@0: #include "nsXULAppAPI.h"
michael@0: 
michael@0: #include <glib.h>
michael@0: #include <glib-object.h>
michael@0: #include <gtk/gtk.h>
michael@0: #include <gdk/gdk.h>
michael@0: #include <gdk-pixbuf/gdk-pixbuf.h>
michael@0: #include <limits.h>
michael@0: #include <stdlib.h>
michael@0: 
michael@0: using namespace mozilla;
michael@0: 
michael@0: struct ProtocolAssociation
michael@0: {
michael@0:   const char *name;
michael@0:   bool essential;
michael@0: };
michael@0: 
michael@0: struct MimeTypeAssociation
michael@0: {
michael@0:   const char *mimeType;
michael@0:   const char *extensions;
michael@0: };
michael@0: 
michael@0: static const ProtocolAssociation appProtocols[] = {
michael@0:   { "http",   true     },
michael@0:   { "https",  true     },
michael@0:   { "ftp",    false },
michael@0:   { "chrome", false }
michael@0: };
michael@0: 
michael@0: static const MimeTypeAssociation appTypes[] = {
michael@0:   { "text/html",             "htm html shtml" },
michael@0:   { "application/xhtml+xml", "xhtml xht"      }
michael@0: };
michael@0: 
michael@0: // GConf registry key constants
michael@0: #define DG_BACKGROUND "/desktop/gnome/background"
michael@0: 
michael@0: static const char kDesktopImageKey[] = DG_BACKGROUND "/picture_filename";
michael@0: static const char kDesktopOptionsKey[] = DG_BACKGROUND "/picture_options";
michael@0: static const char kDesktopDrawBGKey[] = DG_BACKGROUND "/draw_background";
michael@0: static const char kDesktopColorKey[] = DG_BACKGROUND "/primary_color";
michael@0: 
michael@0: static const char kDesktopBGSchema[] = "org.gnome.desktop.background";
michael@0: static const char kDesktopImageGSKey[] = "picture-uri";
michael@0: static const char kDesktopOptionGSKey[] = "picture-options";
michael@0: static const char kDesktopDrawBGGSKey[] = "draw-background";
michael@0: static const char kDesktopColorGSKey[] = "primary-color";
michael@0: 
michael@0: nsresult
michael@0: nsGNOMEShellService::Init()
michael@0: {
michael@0:   nsresult rv;
michael@0: 
michael@0:   // GConf, GSettings or GIO _must_ be available, or we do not allow
michael@0:   // CreateInstance to succeed.
michael@0: 
michael@0:   nsCOMPtr<nsIGConfService> gconf = do_GetService(NS_GCONFSERVICE_CONTRACTID);
michael@0:   nsCOMPtr<nsIGIOService> giovfs =
michael@0:     do_GetService(NS_GIOSERVICE_CONTRACTID);
michael@0:   nsCOMPtr<nsIGSettingsService> gsettings =
michael@0:     do_GetService(NS_GSETTINGSSERVICE_CONTRACTID);
michael@0: 
michael@0:   if (!gconf && !giovfs && !gsettings)
michael@0:     return NS_ERROR_NOT_AVAILABLE;
michael@0: 
michael@0:   // Check G_BROKEN_FILENAMES.  If it's set, then filenames in glib use
michael@0:   // the locale encoding.  If it's not set, they use UTF-8.
michael@0:   mUseLocaleFilenames = PR_GetEnv("G_BROKEN_FILENAMES") != nullptr;
michael@0: 
michael@0:   if (GetAppPathFromLauncher())
michael@0:     return NS_OK;
michael@0: 
michael@0:   nsCOMPtr<nsIProperties> dirSvc
michael@0:     (do_GetService("@mozilla.org/file/directory_service;1"));
michael@0:   NS_ENSURE_TRUE(dirSvc, NS_ERROR_NOT_AVAILABLE);
michael@0: 
michael@0:   nsCOMPtr<nsIFile> appPath;
michael@0:   rv = dirSvc->Get(XRE_EXECUTABLE_FILE, NS_GET_IID(nsIFile),
michael@0:                    getter_AddRefs(appPath));
michael@0:   NS_ENSURE_SUCCESS(rv, rv);
michael@0: 
michael@0:   return appPath->GetNativePath(mAppPath);
michael@0: }
michael@0: 
michael@0: NS_IMPL_ISUPPORTS(nsGNOMEShellService, nsIShellService)
michael@0: 
michael@0: bool
michael@0: nsGNOMEShellService::GetAppPathFromLauncher()
michael@0: {
michael@0:   gchar *tmp;
michael@0: 
michael@0:   const char *launcher = PR_GetEnv("MOZ_APP_LAUNCHER");
michael@0:   if (!launcher)
michael@0:     return false;
michael@0: 
michael@0:   if (g_path_is_absolute(launcher)) {
michael@0:     mAppPath = launcher;
michael@0:     tmp = g_path_get_basename(launcher);
michael@0:     gchar *fullpath = g_find_program_in_path(tmp);
michael@0:     if (fullpath && mAppPath.Equals(fullpath))
michael@0:       mAppIsInPath = true;
michael@0:     g_free(fullpath);
michael@0:   } else {
michael@0:     tmp = g_find_program_in_path(launcher);
michael@0:     if (!tmp)
michael@0:       return false;
michael@0:     mAppPath = tmp;
michael@0:     mAppIsInPath = true;
michael@0:   }
michael@0: 
michael@0:   g_free(tmp);
michael@0:   return true;
michael@0: }
michael@0: 
michael@0: bool
michael@0: nsGNOMEShellService::KeyMatchesAppName(const char *aKeyValue) const
michael@0: {
michael@0: 
michael@0:   gchar *commandPath;
michael@0:   if (mUseLocaleFilenames) {
michael@0:     gchar *nativePath = g_filename_from_utf8(aKeyValue, -1,
michael@0:                                              nullptr, nullptr, nullptr);
michael@0:     if (!nativePath) {
michael@0:       NS_ERROR("Error converting path to filesystem encoding");
michael@0:       return false;
michael@0:     }
michael@0: 
michael@0:     commandPath = g_find_program_in_path(nativePath);
michael@0:     g_free(nativePath);
michael@0:   } else {
michael@0:     commandPath = g_find_program_in_path(aKeyValue);
michael@0:   }
michael@0: 
michael@0:   if (!commandPath)
michael@0:     return false;
michael@0: 
michael@0:   bool matches = mAppPath.Equals(commandPath);
michael@0:   g_free(commandPath);
michael@0:   return matches;
michael@0: }
michael@0: 
michael@0: bool
michael@0: nsGNOMEShellService::CheckHandlerMatchesAppName(const nsACString &handler) const
michael@0: {
michael@0:   gint argc;
michael@0:   gchar **argv;
michael@0:   nsAutoCString command(handler);
michael@0: 
michael@0:   // The string will be something of the form: [/path/to/]browser "%s"
michael@0:   // We want to remove all of the parameters and get just the binary name.
michael@0: 
michael@0:   if (g_shell_parse_argv(command.get(), &argc, &argv, nullptr) && argc > 0) {
michael@0:     command.Assign(argv[0]);
michael@0:     g_strfreev(argv);
michael@0:   }
michael@0: 
michael@0:   if (!KeyMatchesAppName(command.get()))
michael@0:     return false; // the handler is set to another app
michael@0: 
michael@0:   return true;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsGNOMEShellService::IsDefaultBrowser(bool aStartupCheck,
michael@0:                                       bool aForAllTypes,
michael@0:                                       bool* aIsDefaultBrowser)
michael@0: {
michael@0:   *aIsDefaultBrowser = false;
michael@0:   if (aStartupCheck)
michael@0:     mCheckedThisSession = true;
michael@0: 
michael@0:   nsCOMPtr<nsIGConfService> gconf = do_GetService(NS_GCONFSERVICE_CONTRACTID);
michael@0:   nsCOMPtr<nsIGIOService> giovfs = do_GetService(NS_GIOSERVICE_CONTRACTID);
michael@0: 
michael@0:   bool enabled;
michael@0:   nsAutoCString handler;
michael@0:   nsCOMPtr<nsIGIOMimeApp> gioApp;
michael@0: 
michael@0:   for (unsigned int i = 0; i < ArrayLength(appProtocols); ++i) {
michael@0:     if (!appProtocols[i].essential)
michael@0:       continue;
michael@0: 
michael@0:     if (gconf) {
michael@0:       handler.Truncate();
michael@0:       gconf->GetAppForProtocol(nsDependentCString(appProtocols[i].name),
michael@0:                                &enabled, handler);
michael@0: 
michael@0:       if (!CheckHandlerMatchesAppName(handler) || !enabled)
michael@0:         return NS_OK; // the handler is disabled or set to another app
michael@0:     }
michael@0: 
michael@0:     if (giovfs) {
michael@0:       handler.Truncate();
michael@0:       giovfs->GetAppForURIScheme(nsDependentCString(appProtocols[i].name),
michael@0:                                  getter_AddRefs(gioApp));
michael@0:       if (!gioApp)
michael@0:         return NS_OK;
michael@0: 
michael@0:       gioApp->GetCommand(handler);
michael@0: 
michael@0:       if (!CheckHandlerMatchesAppName(handler))
michael@0:         return NS_OK; // the handler is set to another app
michael@0:     }
michael@0:   }
michael@0: 
michael@0:   *aIsDefaultBrowser = true;
michael@0: 
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsGNOMEShellService::SetDefaultBrowser(bool aClaimAllTypes,
michael@0:                                        bool aForAllUsers)
michael@0: {
michael@0: #ifdef DEBUG
michael@0:   if (aForAllUsers)
michael@0:     NS_WARNING("Setting the default browser for all users is not yet supported");
michael@0: #endif
michael@0: 
michael@0:   nsCOMPtr<nsIGConfService> gconf = do_GetService(NS_GCONFSERVICE_CONTRACTID);
michael@0:   nsCOMPtr<nsIGIOService> giovfs = do_GetService(NS_GIOSERVICE_CONTRACTID);
michael@0:   if (gconf) {
michael@0:     nsAutoCString appKeyValue;
michael@0:     if (mAppIsInPath) {
michael@0:       // mAppPath is in the users path, so use only the basename as the launcher
michael@0:       gchar *tmp = g_path_get_basename(mAppPath.get());
michael@0:       appKeyValue = tmp;
michael@0:       g_free(tmp);
michael@0:     } else {
michael@0:       appKeyValue = mAppPath;
michael@0:     }
michael@0: 
michael@0:     appKeyValue.AppendLiteral(" %s");
michael@0: 
michael@0:     for (unsigned int i = 0; i < ArrayLength(appProtocols); ++i) {
michael@0:       if (appProtocols[i].essential || aClaimAllTypes) {
michael@0:         gconf->SetAppForProtocol(nsDependentCString(appProtocols[i].name),
michael@0:                                  appKeyValue);
michael@0:       }
michael@0:     }
michael@0:   }
michael@0: 
michael@0:   if (giovfs) {
michael@0:     nsresult rv;
michael@0:     nsCOMPtr<nsIStringBundleService> bundleService =
michael@0:       do_GetService(NS_STRINGBUNDLE_CONTRACTID, &rv);
michael@0:     NS_ENSURE_SUCCESS(rv, rv);
michael@0: 
michael@0:     nsCOMPtr<nsIStringBundle> brandBundle;
michael@0:     rv = bundleService->CreateBundle(BRAND_PROPERTIES, getter_AddRefs(brandBundle));
michael@0:     NS_ENSURE_SUCCESS(rv, rv);
michael@0: 
michael@0:     nsString brandShortName;
michael@0:     brandBundle->GetStringFromName(MOZ_UTF16("brandShortName"),
michael@0:                                    getter_Copies(brandShortName));
michael@0: 
michael@0:     // use brandShortName as the application id.
michael@0:     NS_ConvertUTF16toUTF8 id(brandShortName);
michael@0:     nsCOMPtr<nsIGIOMimeApp> appInfo;
michael@0:     rv = giovfs->CreateAppFromCommand(mAppPath,
michael@0:                                       id,
michael@0:                                       getter_AddRefs(appInfo));
michael@0:     NS_ENSURE_SUCCESS(rv, rv);
michael@0: 
michael@0:     // set handler for the protocols
michael@0:     for (unsigned int i = 0; i < ArrayLength(appProtocols); ++i) {
michael@0:       if (appProtocols[i].essential || aClaimAllTypes) {
michael@0:         appInfo->SetAsDefaultForURIScheme(nsDependentCString(appProtocols[i].name));
michael@0:       }
michael@0:     }
michael@0: 
michael@0:     // set handler for .html and xhtml files and MIME types:
michael@0:     if (aClaimAllTypes) {
michael@0:       // Add mime types for html, xhtml extension and set app to just created appinfo.
michael@0:       for (unsigned int i = 0; i < ArrayLength(appTypes); ++i) {
michael@0:         appInfo->SetAsDefaultForMimeType(nsDependentCString(appTypes[i].mimeType));
michael@0:         appInfo->SetAsDefaultForFileExtensions(nsDependentCString(appTypes[i].extensions));
michael@0:       }
michael@0:     }
michael@0:   }
michael@0: 
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsGNOMEShellService::GetShouldCheckDefaultBrowser(bool* aResult)
michael@0: {
michael@0:   // If we've already checked, the browser has been started and this is a 
michael@0:   // new window open, and we don't want to check again.
michael@0:   if (mCheckedThisSession) {
michael@0:     *aResult = false;
michael@0:     return NS_OK;
michael@0:   }
michael@0: 
michael@0:   nsCOMPtr<nsIPrefBranch> prefs;
michael@0:   nsCOMPtr<nsIPrefService> pserve(do_GetService(NS_PREFSERVICE_CONTRACTID));
michael@0:   if (pserve)
michael@0:     pserve->GetBranch("", getter_AddRefs(prefs));
michael@0: 
michael@0:   if (prefs)
michael@0:     prefs->GetBoolPref(PREF_CHECKDEFAULTBROWSER, aResult);
michael@0: 
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsGNOMEShellService::SetShouldCheckDefaultBrowser(bool aShouldCheck)
michael@0: {
michael@0:   nsCOMPtr<nsIPrefBranch> prefs;
michael@0:   nsCOMPtr<nsIPrefService> pserve(do_GetService(NS_PREFSERVICE_CONTRACTID));
michael@0:   if (pserve)
michael@0:     pserve->GetBranch("", getter_AddRefs(prefs));
michael@0: 
michael@0:   if (prefs)
michael@0:     prefs->SetBoolPref(PREF_CHECKDEFAULTBROWSER, aShouldCheck);
michael@0: 
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsGNOMEShellService::GetCanSetDesktopBackground(bool* aResult)
michael@0: {
michael@0:   // setting desktop background is currently only supported
michael@0:   // for Gnome or desktops using the same GSettings and GConf keys
michael@0:   const char* gnomeSession = getenv("GNOME_DESKTOP_SESSION_ID");
michael@0:   if (gnomeSession) {
michael@0:     *aResult = true;
michael@0:   } else {
michael@0:     *aResult = false;
michael@0:   }
michael@0: 
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: static nsresult
michael@0: WriteImage(const nsCString& aPath, imgIContainer* aImage)
michael@0: {
michael@0: #if !defined(MOZ_WIDGET_GTK)
michael@0:   return NS_ERROR_NOT_AVAILABLE;
michael@0: #else
michael@0:   nsCOMPtr<nsIImageToPixbuf> imgToPixbuf =
michael@0:     do_GetService("@mozilla.org/widget/image-to-gdk-pixbuf;1");
michael@0:   if (!imgToPixbuf)
michael@0:       return NS_ERROR_NOT_AVAILABLE;
michael@0: 
michael@0:   GdkPixbuf* pixbuf = imgToPixbuf->ConvertImageToPixbuf(aImage);
michael@0:   if (!pixbuf)
michael@0:       return NS_ERROR_NOT_AVAILABLE;
michael@0: 
michael@0:   gboolean res = gdk_pixbuf_save(pixbuf, aPath.get(), "png", nullptr, nullptr);
michael@0: 
michael@0:   g_object_unref(pixbuf);
michael@0:   return res ? NS_OK : NS_ERROR_FAILURE;
michael@0: #endif
michael@0: }
michael@0:                  
michael@0: NS_IMETHODIMP
michael@0: nsGNOMEShellService::SetDesktopBackground(nsIDOMElement* aElement, 
michael@0:                                           int32_t aPosition)
michael@0: {
michael@0:   nsresult rv;
michael@0:   nsCOMPtr<nsIImageLoadingContent> imageContent = do_QueryInterface(aElement, &rv);
michael@0:   if (!imageContent) return rv;
michael@0: 
michael@0:   // get the image container
michael@0:   nsCOMPtr<imgIRequest> request;
michael@0:   rv = imageContent->GetRequest(nsIImageLoadingContent::CURRENT_REQUEST,
michael@0:                                 getter_AddRefs(request));
michael@0:   if (!request) return rv;
michael@0:   nsCOMPtr<imgIContainer> container;
michael@0:   rv = request->GetImage(getter_AddRefs(container));
michael@0:   if (!container) return rv;
michael@0: 
michael@0:   // Set desktop wallpaper filling style
michael@0:   nsAutoCString options;
michael@0:   if (aPosition == BACKGROUND_TILE)
michael@0:     options.Assign("wallpaper");
michael@0:   else if (aPosition == BACKGROUND_STRETCH)
michael@0:     options.Assign("stretched");
michael@0:   else if (aPosition == BACKGROUND_FILL)
michael@0:     options.Assign("zoom");
michael@0:   else if (aPosition == BACKGROUND_FIT)
michael@0:     options.Assign("scaled");
michael@0:   else
michael@0:     options.Assign("centered");
michael@0: 
michael@0:   // Write the background file to the home directory.
michael@0:   nsAutoCString filePath(PR_GetEnv("HOME"));
michael@0: 
michael@0:   // get the product brand name from localized strings
michael@0:   nsString brandName;
michael@0:   nsCID bundleCID = NS_STRINGBUNDLESERVICE_CID;
michael@0:   nsCOMPtr<nsIStringBundleService> bundleService(do_GetService(bundleCID));
michael@0:   if (bundleService) {
michael@0:     nsCOMPtr<nsIStringBundle> brandBundle;
michael@0:     rv = bundleService->CreateBundle(BRAND_PROPERTIES,
michael@0:                                      getter_AddRefs(brandBundle));
michael@0:     if (NS_SUCCEEDED(rv) && brandBundle) {
michael@0:       rv = brandBundle->GetStringFromName(MOZ_UTF16("brandShortName"),
michael@0:                                           getter_Copies(brandName));
michael@0:       NS_ENSURE_SUCCESS(rv, rv);
michael@0:     }
michael@0:   }
michael@0: 
michael@0:   // build the file name
michael@0:   filePath.Append('/');
michael@0:   filePath.Append(NS_ConvertUTF16toUTF8(brandName));
michael@0:   filePath.Append("_wallpaper.png");
michael@0: 
michael@0:   // write the image to a file in the home dir
michael@0:   rv = WriteImage(filePath, container);
michael@0:   NS_ENSURE_SUCCESS(rv, rv);
michael@0: 
michael@0:   // Try GSettings first. If we don't have GSettings or the right schema, fall back
michael@0:   // to using GConf instead. Note that if GSettings works ok, the changes get
michael@0:   // mirrored to GConf by the gsettings->gconf bridge in gnome-settings-daemon
michael@0:   nsCOMPtr<nsIGSettingsService> gsettings = 
michael@0:     do_GetService(NS_GSETTINGSSERVICE_CONTRACTID);
michael@0:   if (gsettings) {
michael@0:     nsCOMPtr<nsIGSettingsCollection> background_settings;
michael@0:     gsettings->GetCollectionForSchema(
michael@0:       NS_LITERAL_CSTRING(kDesktopBGSchema), getter_AddRefs(background_settings));
michael@0:     if (background_settings) {
michael@0:       gchar *file_uri = g_filename_to_uri(filePath.get(), nullptr, nullptr);
michael@0:       if (!file_uri)
michael@0:          return NS_ERROR_FAILURE;
michael@0: 
michael@0:       background_settings->SetString(NS_LITERAL_CSTRING(kDesktopOptionGSKey),
michael@0:                                      options);
michael@0: 
michael@0:       background_settings->SetString(NS_LITERAL_CSTRING(kDesktopImageGSKey),
michael@0:                                      nsDependentCString(file_uri));
michael@0:       g_free(file_uri);
michael@0:       background_settings->SetBoolean(NS_LITERAL_CSTRING(kDesktopDrawBGGSKey),
michael@0:                                       true);
michael@0:       return rv;
michael@0:     }
michael@0:   }
michael@0: 
michael@0:   // if the file was written successfully, set it as the system wallpaper
michael@0:   nsCOMPtr<nsIGConfService> gconf = do_GetService(NS_GCONFSERVICE_CONTRACTID);
michael@0: 
michael@0:   if (gconf) {
michael@0:     gconf->SetString(NS_LITERAL_CSTRING(kDesktopOptionsKey), options);
michael@0: 
michael@0:     // Set the image to an empty string first to force a refresh
michael@0:     // (since we could be writing a new image on top of an existing
michael@0:     // Firefox_wallpaper.png and nautilus doesn't monitor the file for changes)
michael@0:     gconf->SetString(NS_LITERAL_CSTRING(kDesktopImageKey),
michael@0:                      EmptyCString());
michael@0: 
michael@0:     gconf->SetString(NS_LITERAL_CSTRING(kDesktopImageKey), filePath);
michael@0:     gconf->SetBool(NS_LITERAL_CSTRING(kDesktopDrawBGKey), true);
michael@0:   }
michael@0: 
michael@0:   return rv;
michael@0: }
michael@0: 
michael@0: #define COLOR_16_TO_8_BIT(_c) ((_c) >> 8)
michael@0: #define COLOR_8_TO_16_BIT(_c) ((_c) << 8 | (_c))
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsGNOMEShellService::GetDesktopBackgroundColor(uint32_t *aColor)
michael@0: {
michael@0:   nsCOMPtr<nsIGSettingsService> gsettings = 
michael@0:     do_GetService(NS_GSETTINGSSERVICE_CONTRACTID);
michael@0:   nsCOMPtr<nsIGSettingsCollection> background_settings;
michael@0:   nsAutoCString background;
michael@0: 
michael@0:   if (gsettings) {
michael@0:     gsettings->GetCollectionForSchema(
michael@0:       NS_LITERAL_CSTRING(kDesktopBGSchema), getter_AddRefs(background_settings));
michael@0:     if (background_settings) {
michael@0:       background_settings->GetString(NS_LITERAL_CSTRING(kDesktopColorGSKey),
michael@0:                                      background);
michael@0:     }
michael@0:   }
michael@0: 
michael@0:   if (!background_settings) {
michael@0:     nsCOMPtr<nsIGConfService> gconf = do_GetService(NS_GCONFSERVICE_CONTRACTID);
michael@0:     if (gconf)
michael@0:       gconf->GetString(NS_LITERAL_CSTRING(kDesktopColorKey), background);
michael@0:   }
michael@0: 
michael@0:   if (background.IsEmpty()) {
michael@0:     *aColor = 0;
michael@0:     return NS_OK;
michael@0:   }
michael@0: 
michael@0:   GdkColor color;
michael@0:   gboolean success = gdk_color_parse(background.get(), &color);
michael@0: 
michael@0:   NS_ENSURE_TRUE(success, NS_ERROR_FAILURE);
michael@0: 
michael@0:   *aColor = COLOR_16_TO_8_BIT(color.red) << 16 |
michael@0:             COLOR_16_TO_8_BIT(color.green) << 8 |
michael@0:             COLOR_16_TO_8_BIT(color.blue);
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: static void
michael@0: ColorToCString(uint32_t aColor, nsCString& aResult)
michael@0: {
michael@0:   // The #rrrrggggbbbb format is used to match gdk_color_to_string()
michael@0:   char *buf = aResult.BeginWriting(13);
michael@0:   if (!buf)
michael@0:     return;
michael@0: 
michael@0:   uint16_t red = COLOR_8_TO_16_BIT((aColor >> 16) & 0xff);
michael@0:   uint16_t green = COLOR_8_TO_16_BIT((aColor >> 8) & 0xff);
michael@0:   uint16_t blue = COLOR_8_TO_16_BIT(aColor & 0xff);
michael@0: 
michael@0:   PR_snprintf(buf, 14, "#%04x%04x%04x", red, green, blue);
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsGNOMEShellService::SetDesktopBackgroundColor(uint32_t aColor)
michael@0: {
michael@0:   NS_ASSERTION(aColor <= 0xffffff, "aColor has extra bits");
michael@0:   nsAutoCString colorString;
michael@0:   ColorToCString(aColor, colorString);
michael@0: 
michael@0:   nsCOMPtr<nsIGSettingsService> gsettings =
michael@0:     do_GetService(NS_GSETTINGSSERVICE_CONTRACTID);
michael@0:   if (gsettings) {
michael@0:     nsCOMPtr<nsIGSettingsCollection> background_settings;
michael@0:     gsettings->GetCollectionForSchema(
michael@0:       NS_LITERAL_CSTRING(kDesktopBGSchema), getter_AddRefs(background_settings));
michael@0:     if (background_settings) {
michael@0:       background_settings->SetString(NS_LITERAL_CSTRING(kDesktopColorGSKey),
michael@0:                                      colorString);
michael@0:       return NS_OK;
michael@0:     }
michael@0:   }
michael@0: 
michael@0:   nsCOMPtr<nsIGConfService> gconf = do_GetService(NS_GCONFSERVICE_CONTRACTID);
michael@0: 
michael@0:   if (gconf) {
michael@0:     gconf->SetString(NS_LITERAL_CSTRING(kDesktopColorKey), colorString);
michael@0:   }
michael@0: 
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsGNOMEShellService::OpenApplication(int32_t aApplication)
michael@0: {
michael@0:   nsAutoCString scheme;
michael@0:   if (aApplication == APPLICATION_MAIL)
michael@0:     scheme.Assign("mailto");
michael@0:   else if (aApplication == APPLICATION_NEWS)
michael@0:     scheme.Assign("news");
michael@0:   else
michael@0:     return NS_ERROR_NOT_AVAILABLE;
michael@0: 
michael@0:   nsCOMPtr<nsIGIOService> giovfs = do_GetService(NS_GIOSERVICE_CONTRACTID);
michael@0:   if (giovfs) {
michael@0:     nsCOMPtr<nsIGIOMimeApp> gioApp;
michael@0:     giovfs->GetAppForURIScheme(scheme, getter_AddRefs(gioApp));
michael@0:     if (gioApp)
michael@0:       return gioApp->Launch(EmptyCString());
michael@0:   }
michael@0: 
michael@0:   nsCOMPtr<nsIGConfService> gconf = do_GetService(NS_GCONFSERVICE_CONTRACTID);
michael@0:   if (!gconf)
michael@0:     return NS_ERROR_FAILURE;
michael@0: 
michael@0:   bool enabled;
michael@0:   nsAutoCString appCommand;
michael@0:   gconf->GetAppForProtocol(scheme, &enabled, appCommand);
michael@0: 
michael@0:   if (!enabled)
michael@0:     return NS_ERROR_FAILURE;
michael@0: 
michael@0:   // XXX we don't currently handle launching a terminal window.
michael@0:   // If the handler requires a terminal, bail.
michael@0:   bool requiresTerminal;
michael@0:   gconf->HandlerRequiresTerminal(scheme, &requiresTerminal);
michael@0:   if (requiresTerminal)
michael@0:     return NS_ERROR_FAILURE;
michael@0: 
michael@0:   // Perform shell argument expansion
michael@0:   int argc;
michael@0:   char **argv;
michael@0:   if (!g_shell_parse_argv(appCommand.get(), &argc, &argv, nullptr))
michael@0:     return NS_ERROR_FAILURE;
michael@0: 
michael@0:   char **newArgv = new char*[argc + 1];
michael@0:   int newArgc = 0;
michael@0: 
michael@0:   // Run through the list of arguments.  Copy all of them to the new
michael@0:   // argv except for %s, which we skip.
michael@0:   for (int i = 0; i < argc; ++i) {
michael@0:     if (strcmp(argv[i], "%s") != 0)
michael@0:       newArgv[newArgc++] = argv[i];
michael@0:   }
michael@0: 
michael@0:   newArgv[newArgc] = nullptr;
michael@0: 
michael@0:   gboolean err = g_spawn_async(nullptr, newArgv, nullptr, G_SPAWN_SEARCH_PATH,
michael@0:                                nullptr, nullptr, nullptr, nullptr);
michael@0: 
michael@0:   g_strfreev(argv);
michael@0:   delete[] newArgv;
michael@0: 
michael@0:   return err ? NS_OK : NS_ERROR_FAILURE;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsGNOMEShellService::OpenApplicationWithURI(nsIFile* aApplication, const nsACString& aURI)
michael@0: {
michael@0:   nsresult rv;
michael@0:   nsCOMPtr<nsIProcess> process = 
michael@0:     do_CreateInstance("@mozilla.org/process/util;1", &rv);
michael@0:   if (NS_FAILED(rv))
michael@0:     return rv;
michael@0:   
michael@0:   rv = process->Init(aApplication);
michael@0:   if (NS_FAILED(rv))
michael@0:     return rv;
michael@0: 
michael@0:   const nsCString spec(aURI);
michael@0:   const char* specStr = spec.get();
michael@0:   return process->Run(false, &specStr, 1);
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsGNOMEShellService::GetDefaultFeedReader(nsIFile** _retval)
michael@0: {
michael@0:   return NS_ERROR_NOT_IMPLEMENTED;
michael@0: }