toolkit/xre/nsNativeAppSupportUnix.cpp

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /* ***** BEGIN LICENSE BLOCK *****
   3  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
   4  *
   5  * The contents of this file are subject to the Mozilla Public License Version
   6  * 1.1 (the "License"); you may not use this file except in compliance with
   7  * the License. You may obtain a copy of the License at
   8  * http://www.mozilla.org/MPL/
   9  *
  10  * Software distributed under the License is distributed on an "AS IS" basis,
  11  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  12  * for the specific language governing rights and limitations under the
  13  * License.
  14  *
  15  * The Original Code is Unix Native App Support.
  16  *
  17  * The Initial Developer of the Original Code is
  18  * Mozilla Corporation.
  19  * Portions created by the Initial Developer are Copyright (C) 2007
  20  * the Initial Developer. All Rights Reserved.
  21  *
  22  * Contributor(s):
  23  *   Michael Wu <flamingice@sourmilk.net>    (original author)
  24  *   Michael Ventnor <m.ventnor@gmail.com>
  25  *
  26  * Alternatively, the contents of this file may be used under the terms of
  27  * either the GNU General Public License Version 2 or later (the "GPL"), or
  28  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
  29  * in which case the provisions of the GPL or the LGPL are applicable instead
  30  * of those above. If you wish to allow use of your version of this file only
  31  * under the terms of either the GPL or the LGPL, and not to allow others to
  32  * use your version of this file under the terms of the MPL, indicate your
  33  * decision by deleting the provisions above and replace them with the notice
  34  * and other provisions required by the GPL or the LGPL. If you do not delete
  35  * the provisions above, a recipient may use your version of this file under
  36  * the terms of any one of the MPL, the GPL or the LGPL.
  37  *
  38  * ***** END LICENSE BLOCK ***** */
  39
  40 #include "nsNativeAppSupportBase.h"
  41 #include "nsCOMPtr.h"
  42 #include "nsXPCOM.h"
  43 #include "nsISupportsPrimitives.h"
  44 #include "nsIObserverService.h"
  45 #include "nsIAppStartup.h"
  46 #include "nsServiceManagerUtils.h"
  47 #include "prlink.h"
  48 #include "nsXREDirProvider.h"
  49 #include "nsReadableUtils.h"
  50
  51 #include "nsIFile.h"
  52 #include "nsDirectoryServiceDefs.h"
  53 #include "nsICommandLineRunner.h"
  54 #include "nsIWindowMediator.h"
  55 #include "nsIDOMWindowInternal.h"
  56 #include "nsPIDOMWindow.h"
  57 #include "nsIDocShell.h"
  58 #include "nsIBaseWindow.h"
  59 #include "nsIWidget.h"
  60 #include "nsIWritablePropertyBag2.h"
  61 #include "nsIPrefService.h"
  62 #include "mozilla/Services.h"
  63
  64 #include <stdlib.h>
  65 #include <glib.h>
  66 #include <glib-object.h>
  67 #include <gtk/gtk.h>
  68
  69 #ifdef MOZ_X11
  70 #include <gdk/gdkx.h>
  71 #include <X11/Xatom.h>
  72 #endif
  73
  74 #ifdef MOZ_PLATFORM_MAEMO
  75 struct DBusMessage;  /* libosso.h references internals of dbus */
  76
  77 #include <dbus/dbus.h>
  78 #include <dbus/dbus-protocol.h>
  79 #include <libosso.h>
  80
  81 // These come from <mce/dbus-names.h> (maemo sdk 5+)
  82 #define MCE_SERVICE "com.nokia.mce"
  83 #define MCE_REQUEST_IF "com.nokia.mce.request"
  84 #define MCE_REQUEST_PATH "/com/nokia/mce/request"
  85 #define MCE_SIGNAL_IF "com.nokia.mce.signal"
  86 #define MCE_DEVICE_ORIENTATION_SIG "sig_device_orientation_ind"
  87 #define MCE_MATCH_RULE "type='signal',interface='" MCE_SIGNAL_IF "',member='" MCE_DEVICE_ORIENTATION_SIG "'"
  88 #endif
  89
  90 #define MIN_GTK_MAJOR_VERSION 2
  91 #define MIN_GTK_MINOR_VERSION 10
  92 #define UNSUPPORTED_GTK_MSG "We're sorry, this application requires a version of the GTK+ library that is not installed on your computer.\n\n\
  93 You have GTK+ %d.%d.\nThis application requires GTK+ %d.%d or newer.\n\n\
  94 Please upgrade your GTK+ library if you wish to use this application."
  95
  96 typedef struct _GnomeProgram GnomeProgram;
  97 typedef struct _GnomeModuleInfo GnomeModuleInfo;
  98 typedef struct _GnomeClient GnomeClient;
  99
 100 typedef enum {
 101   GNOME_SAVE_GLOBAL,
 102   GNOME_SAVE_LOCAL,
 103   GNOME_SAVE_BOTH
 104 } GnomeSaveStyle;
 105
 106 typedef enum {
 107   GNOME_INTERACT_NONE,
 108   GNOME_INTERACT_ERRORS,
 109   GNOME_INTERACT_ANY
 110 } GnomeInteractStyle;
 111
 112 typedef enum {
 113   GNOME_DIALOG_ERROR,
 114   GNOME_DIALOG_NORMAL
 115 } GnomeDialogType;
 116
 117 typedef GnomeProgram * (*_gnome_program_init_fn)(const char *, const char *,
 118                                                  const GnomeModuleInfo *, int,
 119                                                  char **, const char *, ...);
 120 typedef GnomeProgram * (*_gnome_program_get_fn)(void);
 121 typedef const GnomeModuleInfo * (*_libgnomeui_module_info_get_fn)();
 122 typedef GnomeClient * (*_gnome_master_client_fn)(void);
 123 typedef void (*_gnome_client_set_restart_command_fn)(GnomeClient*, gint, gchar*[]);
 124
 125 static _gnome_client_set_restart_command_fn gnome_client_set_restart_command;
 126
 127 gboolean save_yourself_cb(GnomeClient *client, gint phase,
 128                           GnomeSaveStyle style, gboolean shutdown,
 129                           GnomeInteractStyle interact, gboolean fast,
 130                           gpointer user_data)
 131 {
 132   nsCOMPtr<nsIObserverService> obsServ =
 133     mozilla::services::GetObserverService();
 134
 135   nsCOMPtr<nsISupportsPRBool> didSaveSession =
 136     do_CreateInstance(NS_SUPPORTS_PRBOOL_CONTRACTID);
 137
 138   if (!obsServ || !didSaveSession)
 139     return TRUE; // OOM
 140
 141   // Notify observers to save the session state
 142   didSaveSession->SetData(PR_FALSE);
 143   obsServ->NotifyObservers(didSaveSession, "session-save", nsnull);
 144
 145   PRBool status;
 146   didSaveSession->GetData(&status);
 147
 148   // If there was no session saved and the save_yourself request is
 149   // caused by upcoming shutdown we like to prepare for it
 150   if (!status && shutdown) {
 151     nsCOMPtr<nsISupportsPRBool> cancelQuit =
 152       do_CreateInstance(NS_SUPPORTS_PRBOOL_CONTRACTID);
 153
 154     cancelQuit->SetData(PR_FALSE);
 155     obsServ->NotifyObservers(cancelQuit, "quit-application-requested", nsnull);
 156
 157     PRBool abortQuit;
 158     cancelQuit->GetData(&abortQuit);
 159   }
 160
 161   return TRUE;
 162 }
 163
 164 void die_cb(GnomeClient *client, gpointer user_data)
 165 {
 166   nsCOMPtr<nsIAppStartup> appService =
 167     do_GetService("@mozilla.org/toolkit/app-startup;1");
 168
 169   if (appService)
 170     appService->Quit(nsIAppStartup::eForceQuit);
 171 }
 172
 173 class nsNativeAppSupportUnix : public nsNativeAppSupportBase
 174 {
 175 public:
 176   NS_IMETHOD Start(PRBool* aRetVal);
 177   NS_IMETHOD Stop(PRBool *aResult);
 178   NS_IMETHOD Enable();
 179
 180 private:
 181 #ifdef MOZ_PLATFORM_MAEMO
 182   osso_context_t *m_osso_context;
 183   /* A note about why we need to have m_hw_state:
 184      the osso hardware callback does not tell us what changed, just
 185      that something has changed.  We need to keep track of state so
 186      that we can determine what has changed.
 187   */
 188   osso_hw_state_t m_hw_state;
 189 #endif
 190 };
 191
 192 #ifdef MOZ_PLATFORM_MAEMO
 193 static nsresult
 194 GetMostRecentWindow(const PRUnichar* aType, nsIDOMWindowInternal** aWindow)
 195 {
 196   nsCOMPtr<nsIWindowMediator> wm = do_GetService("@mozilla.org/appshell/window-mediator;1");
 197   if (wm)
 198     return wm->GetMostRecentWindow(aType, aWindow);
 199   return NS_ERROR_FAILURE;
 200 }
 201
 202 static GtkWidget*
 203 WidgetForDOMWindow(nsISupports *aWindow)
 204 {
 205   nsCOMPtr<nsPIDOMWindow> domWindow(do_QueryInterface(aWindow));
 206   if (!domWindow)
 207     return NULL;
 208
 209   nsCOMPtr<nsIBaseWindow> baseWindow = do_QueryInterface(domWindow->GetDocShell());
 210   if (!baseWindow)
 211     return NULL;
 212
 213   nsCOMPtr<nsIWidget> widget;
 214   baseWindow->GetMainWidget(getter_AddRefs(widget));
 215   if (!widget)
 216     return NULL;
 217
 218   return (GtkWidget*)(widget->GetNativeData(NS_NATIVE_SHELLWIDGET));
 219 }
 220
 221 static void
 222 OssoSetWindowOrientation(PRBool aPortrait)
 223 {
 224   // If we locked the screen, ignore any orientation changes
 225   PRBool lockScreen = PR_FALSE;
 226   nsCOMPtr<nsIPrefBranch> prefs = do_GetService(NS_PREFSERVICE_CONTRACTID);
 227   if (prefs)
 228     prefs->GetBoolPref("toolkit.screen.lock", &lockScreen);
 229
 230   if (lockScreen)
 231     return;
 232
 233   // Tell Hildon desktop to force our window to be either portrait or landscape,
 234   // depending on the current rotation
 235   // NOTE: We only update the most recent top-level window so this is only
 236   //       suitable for apps with only one window.
 237   nsCOMPtr<nsIDOMWindowInternal> window;
 238   GetMostRecentWindow(EmptyString().get(), getter_AddRefs(window));
 239   GtkWidget* widget = WidgetForDOMWindow(window);
 240   if (widget && widget->window) {
 241     GdkWindow *gdk = widget->window;
 242     GdkAtom request = gdk_atom_intern("_HILDON_PORTRAIT_MODE_REQUEST", FALSE);
 243
 244     if (aPortrait) {
 245       gulong portrait_set = 1;
 246       gdk_property_change(gdk, request, gdk_x11_xatom_to_atom(XA_CARDINAL),
 247                           32, GDK_PROP_MODE_REPLACE, (const guchar *) &portrait_set, 1);
 248     }
 249     else {
 250       gdk_property_delete(gdk, request);
 251     }
 252   }
 253
 254   // Update the system info property
 255   nsCOMPtr<nsIWritablePropertyBag2> info = do_GetService("@mozilla.org/system-info;1");
 256   if (info) {
 257     info->SetPropertyAsAString(NS_LITERAL_STRING("screen-orientation"),
 258                                aPortrait ? NS_LITERAL_STRING("portrait") : NS_LITERAL_STRING("landscape"));
 259   }
 260 }
 261
 262 static PRBool OssoIsScreenOn(osso_context_t* ctx)
 263 {
 264   osso_return_t rv;
 265   osso_rpc_t ret;
 266   PRBool result = PR_FALSE;
 267
 268   rv = osso_rpc_run_system(ctx, MCE_SERVICE, MCE_REQUEST_PATH, MCE_REQUEST_IF,
 269                            "get_display_status", &ret, DBUS_TYPE_INVALID);
 270   if (rv == OSSO_OK) {
 271       if (strcmp(ret.value.s, "on") == 0)
 272           result = PR_TRUE;
 273
 274       osso_rpc_free_val(&ret);
 275   }
 276   return result;
 277 }
 278
 279 static void OssoRequestAccelerometer(osso_context_t *ctx, PRBool aEnabled)
 280 {
 281   osso_return_t rv;
 282   osso_rpc_t ret;
 283
 284   rv = osso_rpc_run_system(ctx,
 285                            MCE_SERVICE,
 286                            MCE_REQUEST_PATH, MCE_REQUEST_IF,
 287                            aEnabled ? "req_accelerometer_enable" : "req_accelerometer_disable",
 288                            aEnabled ? &ret : NULL,
 289                            DBUS_TYPE_INVALID);
 290
 291   // Orientation might changed while the accelerometer was off, so let's update
 292   // the window's orientation
 293   if (rv == OSSO_OK && aEnabled) {
 294       OssoSetWindowOrientation(strcmp(ret.value.s, "portrait") == 0);
 295       osso_rpc_free_val(&ret);
 296   }
 297 }
 298
 299 static void OssoDisplayCallback(osso_display_state_t state, gpointer data)
 300 {
 301   nsCOMPtr<nsIObserverService> os = mozilla::services::GetObserverService();
 302   if (!os)
 303       return;
 304
 305   osso_context_t* context = (osso_context_t*) data;
 306
 307   if (state == OSSO_DISPLAY_ON) {
 308       os->NotifyObservers(nsnull, "system-display-on", nsnull);
 309       OssoRequestAccelerometer(context, PR_TRUE);
 310   } else {
 311       os->NotifyObservers(nsnull, "system-display-dimmed-or-off", nsnull);
 312       OssoRequestAccelerometer(context, PR_FALSE);
 313   }
 314 }
 315
 316 static void OssoHardwareCallback(osso_hw_state_t *state, gpointer data)
 317 {
 318   NS_ASSERTION(state, "osso_hw_state_t must not be null.");
 319   NS_ASSERTION(data, "data must not be null.");
 320
 321   osso_hw_state_t* ourState = (osso_hw_state_t*) data;
 322
 323   if (state->shutdown_ind) {
 324     nsCOMPtr<nsIAppStartup> appService = do_GetService("@mozilla.org/toolkit/app-startup;1");
 325     if (appService)
 326       appService->Quit(nsIAppStartup::eForceQuit);
 327     return;
 328   }
 329
 330   if (state->memory_low_ind && !ourState->memory_low_ind) {
 331     nsCOMPtr<nsIObserverService> os = mozilla::services::GetObserverService();
 332     if (os)
 333       os->NotifyObservers(nsnull, "memory-pressure", NS_LITERAL_STRING("low-memory").get());
 334   }
 335
 336   if (state->system_inactivity_ind != ourState->system_inactivity_ind) {
 337       nsCOMPtr<nsIObserverService> os = mozilla::services::GetObserverService();
 338       if (!os)
 339         return;
 340
 341       if (state->system_inactivity_ind)
 342           os->NotifyObservers(nsnull, "system-idle", nsnull);
 343       else
 344           os->NotifyObservers(nsnull, "system-active", nsnull);
 345   }
 346
 347   memcpy(ourState, state, sizeof(osso_hw_state_t));
 348 }
 349
 350 static gint
 351 OssoDbusCallback(const gchar *interface, const gchar *method,
 352                  GArray *arguments, gpointer data, osso_rpc_t *retval)
 353 {
 354   retval->type = DBUS_TYPE_INVALID;
 355
 356   // The "top_application" method just wants us to focus the top-most window.
 357   if (!strcmp("top_application", method)) {
 358     nsCOMPtr<nsIDOMWindowInternal> window;
 359     GetMostRecentWindow(NS_LITERAL_STRING("").get(), getter_AddRefs(window));
 360     if (window)
 361       window->Focus();
 362
 363     return OSSO_OK;
 364   }
 365
 366   if (!strcmp("quit", method)) {
 367     nsCOMPtr<nsIAppStartup> appService = do_GetService("@mozilla.org/toolkit/app-startup;1");
 368     if (appService)
 369       appService->Quit(nsIAppStartup::eForceQuit);
 370
 371     return OSSO_OK;
 372   }
 373
 374   // Other methods can have arguments, which we convert and send to commandline
 375   // handlers.
 376   nsCOMPtr<nsICommandLineRunner> cmdLine
 377     (do_CreateInstance("@mozilla.org/toolkit/command-line;1"));
 378
 379   nsCOMPtr<nsIFile> workingDir;
 380   NS_GetSpecialDirectory(NS_XPCOM_CURRENT_PROCESS_DIR,
 381                          getter_AddRefs(workingDir));
 382
 383   char** argv = 0;
 384   int argc = 0;
 385
 386   // Not all DBus methods pass arguments
 387   if (arguments && arguments->len > 0) {
 388     // Create argument list with a dummy argv[0]
 389     argc = arguments->len + 1;
 390     argv = (char**)calloc(1, argc * sizeof(*argv));
 391
 392     // Start at 1 to skip the dummy argv[0]
 393     for (int i = 1; i < argc; i++) {
 394       osso_rpc_t* entry = (osso_rpc_t*)&g_array_index(arguments, osso_rpc_t, i - 1);
 395       if (entry->type != DBUS_TYPE_STRING)
 396         continue;
 397
 398       argv[i] = strdup(entry->value.s);
 399     }
 400   }
 401
 402   cmdLine->Init(argc, argv, workingDir, nsICommandLine::STATE_REMOTE_AUTO);
 403
 404   // Cleanup argument list
 405   while (argc) {
 406     free(argv[--argc]);
 407   }
 408   free(argv);
 409
 410   cmdLine->Run();
 411
 412   return OSSO_OK;
 413 }
 414
 415 static DBusHandlerResult
 416 OssoModeControlCallback(DBusConnection *con, DBusMessage *msg, gpointer data)
 417 {
 418   if (dbus_message_is_signal(msg, MCE_SIGNAL_IF, MCE_DEVICE_ORIENTATION_SIG)) {
 419     DBusMessageIter iter;
 420     if (dbus_message_iter_init(msg, &iter)) {
 421       const gchar *mode = NULL;
 422       dbus_message_iter_get_basic(&iter, &mode);
 423
 424       OssoSetWindowOrientation(strcmp(mode, "portrait") == 0);
 425     }
 426   }
 427   return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 428 }
 429
 430 #endif
 431
 432 NS_IMETHODIMP
 433 nsNativeAppSupportUnix::Start(PRBool *aRetVal)
 434 {
 435   NS_ASSERTION(gAppData, "gAppData must not be null.");
 436
 437   if (gtk_major_version < MIN_GTK_MAJOR_VERSION ||
 438       (gtk_major_version == MIN_GTK_MAJOR_VERSION && gtk_minor_version < MIN_GTK_MINOR_VERSION)) {
 439     GtkWidget* versionErrDialog = gtk_message_dialog_new(NULL,
 440                      GtkDialogFlags(GTK_DIALOG_MODAL |
 441                                     GTK_DIALOG_DESTROY_WITH_PARENT),
 442                      GTK_MESSAGE_ERROR,
 443                      GTK_BUTTONS_OK,
 444                      UNSUPPORTED_GTK_MSG,
 445                      gtk_major_version,
 446                      gtk_minor_version,
 447                      MIN_GTK_MAJOR_VERSION,
 448                      MIN_GTK_MINOR_VERSION);
 449     gtk_dialog_run(GTK_DIALOG(versionErrDialog));
 450     gtk_widget_destroy(versionErrDialog);
 451     exit(0);
 452   }
 453
 454 #ifdef MOZ_PLATFORM_MAEMO
 455   /* zero state out. */
 456   memset(&m_hw_state, 0, sizeof(osso_hw_state_t));
 457
 458   /* Initialize maemo application
 459
 460      The initalization name will be of the form "Vendor.Name".
 461      If a Vendor isn't given, then we will just use "Name".
 462
 463      Note that this value must match your X-Osso-Service name
 464      defined in your desktop file.  If it doesn't, the OSSO
 465      system will happily kill your process.
 466   */
 467   nsCAutoString applicationName;
 468   if (gAppData->vendor) {
 469       applicationName.Append(gAppData->vendor);
 470       applicationName.Append(".");
 471   }
 472   applicationName.Append(gAppData->name);
 473   ToLowerCase(applicationName);
 474
 475   m_osso_context = osso_initialize(applicationName.get(),
 476                                    gAppData->version ? gAppData->version : "1.0",
 477                                    PR_TRUE,
 478                                    nsnull);
 479
 480   /* Check that initilialization was ok */
 481   if (m_osso_context == nsnull) {
 482       return NS_ERROR_FAILURE;
 483   }
 484
 485   osso_hw_set_event_cb(m_osso_context, nsnull, OssoHardwareCallback, &m_hw_state);
 486   osso_hw_set_display_event_cb(m_osso_context, OssoDisplayCallback, m_osso_context);
 487   osso_rpc_set_default_cb_f(m_osso_context, OssoDbusCallback, nsnull);
 488
 489   // Setup an MCE callback to monitor orientation
 490   DBusConnection *connnection = (DBusConnection*)osso_get_sys_dbus_connection(m_osso_context);
 491   dbus_bus_add_match(connnection, MCE_MATCH_RULE, nsnull);
 492   dbus_connection_add_filter(connnection, OssoModeControlCallback, nsnull, nsnull);
 493 #endif
 494
 495   *aRetVal = PR_TRUE;
 496
 497 #ifdef MOZ_X11
 498
 499   PRLibrary *gnomeuiLib = PR_LoadLibrary("libgnomeui-2.so.0");
 500   if (!gnomeuiLib)
 501     return NS_OK;
 502
 503   PRLibrary *gnomeLib = PR_LoadLibrary("libgnome-2.so.0");
 504   if (!gnomeLib) {
 505     PR_UnloadLibrary(gnomeuiLib);
 506     return NS_OK;
 507   }
 508
 509   _gnome_program_init_fn gnome_program_init =
 510     (_gnome_program_init_fn)PR_FindFunctionSymbol(gnomeLib, "gnome_program_init");
 511   _gnome_program_get_fn gnome_program_get =
 512     (_gnome_program_get_fn)PR_FindFunctionSymbol(gnomeLib, "gnome_program_get");
 513  _libgnomeui_module_info_get_fn libgnomeui_module_info_get = (_libgnomeui_module_info_get_fn)PR_FindFunctionSymbol(gnomeuiLib, "libgnomeui_module_info_get");
 514   if (!gnome_program_init || !gnome_program_get || !libgnomeui_module_info_get) {
 515     PR_UnloadLibrary(gnomeuiLib);
 516     PR_UnloadLibrary(gnomeLib);
 517     return NS_OK;
 518   }
 519
 520 #endif /* MOZ_X11 */
 521
 522 #ifdef ACCESSIBILITY
 523   // We will load gail, atk-bridge by ourself later
 524   // We can't run atk-bridge init here, because gail get the control
 525   // Set GNOME_ACCESSIBILITY to 0 can avoid this
 526   static const char *accEnv = "GNOME_ACCESSIBILITY";
 527   const char *accOldValue = getenv(accEnv);
 528   setenv(accEnv, "0", 1);
 529 #endif
 530
 531 #ifdef MOZ_X11
 532   if (!gnome_program_get()) {
 533     gnome_program_init("Gecko", "1.0", libgnomeui_module_info_get(), gArgc, gArgv, NULL);
 534   }
 535 #endif /* MOZ_X11 */
 536
 537 #ifdef ACCESSIBILITY
 538   if (accOldValue) {
 539     setenv(accEnv, accOldValue, 1);
 540   } else {
 541     unsetenv(accEnv);
 542   }
 543 #endif
 544
 545   // Careful! These libraries cannot be unloaded after this point because
 546   // gnome_program_init causes atexit handlers to be registered. Strange
 547   // crashes will occur if these libraries are unloaded.
 548
 549 #ifdef MOZ_X11
 550   gnome_client_set_restart_command = (_gnome_client_set_restart_command_fn)
 551     PR_FindFunctionSymbol(gnomeuiLib, "gnome_client_set_restart_command");
 552
 553   _gnome_master_client_fn gnome_master_client = (_gnome_master_client_fn)
 554     PR_FindFunctionSymbol(gnomeuiLib, "gnome_master_client");
 555
 556   GnomeClient *client = gnome_master_client();
 557   g_signal_connect(client, "save-yourself", G_CALLBACK(save_yourself_cb), NULL);
 558   g_signal_connect(client, "die", G_CALLBACK(die_cb), NULL);
 559
 560   // Set the correct/requested restart command in any case.
 561
 562   // Is there a request to suppress default binary launcher?
 563   nsCAutoString path;
 564   char* argv1 = getenv("MOZ_APP_LAUNCHER");
 565
 566   if(!argv1) {
 567     // Tell the desktop the command for restarting us so that we can be part of XSMP session restore
 568     NS_ASSERTION(gDirServiceProvider, "gDirServiceProvider is NULL! This shouldn't happen!");
 569     nsCOMPtr<nsIFile> executablePath;
 570     nsresult rv;
 571
 572     PRBool dummy;
 573     rv = gDirServiceProvider->GetFile(XRE_EXECUTABLE_FILE, &dummy, getter_AddRefs(executablePath));
 574
 575     if (NS_SUCCEEDED(rv)) {
 576       // Strip off the -bin suffix to get the shell script we should run; this is what Breakpad does
 577       nsCAutoString leafName;
 578       rv = executablePath->GetNativeLeafName(leafName);
 579       if (NS_SUCCEEDED(rv) && StringEndsWith(leafName, NS_LITERAL_CSTRING("-bin"))) {
 580         leafName.SetLength(leafName.Length() - strlen("-bin"));
 581         executablePath->SetNativeLeafName(leafName);
 582       }
 583
 584       executablePath->GetNativePath(path);
 585       argv1 = (char*)(path.get());
 586     }
 587   }
 588
 589   if (argv1) {
 590     gnome_client_set_restart_command(client, 1, &argv1);
 591   }
 592 #endif /* MOZ_X11 */
 593
 594   return NS_OK;
 595 }
 596
 597 NS_IMETHODIMP
 598 nsNativeAppSupportUnix::Stop(PRBool *aResult)
 599 {
 600   NS_ENSURE_ARG(aResult);
 601   *aResult = PR_TRUE;
 602
 603 #ifdef MOZ_PLATFORM_MAEMO
 604   if (m_osso_context) {
 605     // Disable the accelerometer when closing
 606     OssoRequestAccelerometer(m_osso_context, PR_FALSE);
 607
 608     // Remove the MCE callback filter
 609     DBusConnection *connnection = (DBusConnection*)osso_get_sys_dbus_connection(m_osso_context);
 610     dbus_connection_remove_filter(connnection, OssoModeControlCallback, nsnull);
 611
 612     osso_hw_unset_event_cb(m_osso_context, nsnull);
 613     osso_rpc_unset_default_cb_f(m_osso_context, OssoDbusCallback, nsnull);
 614     osso_deinitialize(m_osso_context);
 615     m_osso_context = nsnull;
 616   }
 617 #endif
 618   return NS_OK;
 619 }
 620
 621 NS_IMETHODIMP
 622 nsNativeAppSupportUnix::Enable()
 623 {
 624 #ifdef MOZ_PLATFORM_MAEMO
 625   // Enable the accelerometer for orientation support
 626   if (OssoIsScreenOn(m_osso_context))
 627       OssoRequestAccelerometer(m_osso_context, PR_TRUE);
 628 #endif
 629   return NS_OK;
 630 }
 631
 632 nsresult
 633 NS_CreateNativeAppSupport(nsINativeAppSupport **aResult)
 634 {
 635   nsNativeAppSupportBase* native = new nsNativeAppSupportUnix();
 636   if (!native)
 637     return NS_ERROR_OUT_OF_MEMORY;
 638
 639   *aResult = native;
 640   NS_ADDREF(*aResult);
 641
 642   return NS_OK;
 643 }