vcs.maemo.org Git - hildon/blob - hildon/hildon-program.c

   1 /*
   2  * This file is a part of hildon
   3  *
   4  * Copyright (C) 2006 Nokia Corporation, all rights reserved.
   5  *
   6  * Contact: Rodrigo Novo <rodrigo.novo@nokia.com>
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public License
  10  * as published by the Free Software Foundation; version 2.1 of
  11  * the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful, but
  14  * WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  21  * 02110-1301 USA
  22  *
  23  */
  24
  25 /**
  26  * SECTION:hildon-program
  27  * @short_description: Application abstraction in the Hildon framework.
  28  * @see_also: #HildonWindow, #HildonStackableWindow
  29  *
  30  * #HildonProgram is an object used to represent an application running
  31  * in the Hildon framework.
  32  *
  33  * Applications can have one or more #HildonWindow<!-- -->s. These
  34  * can be registered in the #HildonProgram with hildon_program_add_window(),
  35  * and can be unregistered similarly with hildon_program_remove_window().
  36  *
  37  * #HildonProgram provides the programmer with commodities such
  38  * as applying a common toolbar and menu to all registered
  39  * #HildonWindow<!-- -->s. This is done with hildon_program_set_common_menu(),
  40  * hildon_program_set_common_app_menu() and hildon_program_set_common_toolbar().
  41  *
  42  * #HildonProgram is also used to apply program-wide properties that
  43  * are specific to the Hildon framework. For instance
  44  * hildon_program_set_can_hibernate() sets whether or not an application
  45  * can be set to hibernate by the Hildon task navigator, in situations of
  46  * low memory.
  47  *
  48  * <example>
  49  * <programlisting>
  50  * HildonProgram *program;
  51  * HildonWindow *window1;
  52  * HildonWindow *window2;
  53  * GtkToolbar *common_toolbar, *window_specific_toolbar;
  54  * HildonAppMenu *menu;
  55  * <!-- -->
  56  * program = HILDON_PROGRAM (hildon_program_get_instance ());
  57  * <!-- -->
  58  * window1 = HILDON_WINDOW (hildon_window_new ());
  59  * window2 = HILDON_WINDOW (hildon_window_new ());
  60  * <!-- -->
  61  * common_toolbar = create_common_toolbar ();
  62  * window_specific_toolbar = create_window_specific_toolbar ();
  63  * <!-- -->
  64  * menu = create_menu ();
  65  * <!-- -->
  66  * hildon_program_add_window (program, window1);
  67  * hildon_program_add_window (program, window2);
  68  * <!-- -->
  69  * hildon_program_set_common_app_menu (program, menu);
  70  * <!-- -->
  71  * hildon_program_set_common_toolbar (program, common_toolbar);
  72  * hildon_window_add_toolbar (window1, window_specific_toolbar);
  73  * <!-- -->
  74  * hildon_program_set_can_hibernate (program, TRUE);
  75  * </programlisting>
  76  * </example>
  77  */
  78
  79 #undef                                          HILDON_DISABLE_DEPRECATED
  80
  81 #ifdef                                          HAVE_CONFIG_H
  82 #include                                        <config.h>
  83 #endif
  84
  85 #include                                        <X11/Xatom.h>
  86
  87 #include                                        "hildon-program.h"
  88 #include                                        "hildon-program-private.h"
  89 #include                                        "hildon-window-private.h"
  90 #include                                        "hildon-window-stack.h"
  91 #include                                        "hildon-app-menu-private.h"
  92
  93 static void
  94 hildon_program_init                             (HildonProgram *self);
  95
  96 static void
  97 hildon_program_finalize                         (GObject *self);
  98
  99 static void
 100 hildon_program_class_init                       (HildonProgramClass *self);
 101
 102 static void
 103 hildon_program_get_property                     (GObject *object,
 104                                                  guint property_id,
 105                                                  GValue *value,
 106                                                  GParamSpec *pspec);
 107 static void
 108 hildon_program_set_property                     (GObject *object,
 109                                                  guint property_id,
 110                                                  const GValue *value,
 111                                                  GParamSpec *pspec);
 112
 113 enum
 114 {
 115     PROP_0,
 116     PROP_IS_TOPMOST,
 117     PROP_KILLABLE
 118 };
 119
 120 GType G_GNUC_CONST
 121 hildon_program_get_type                         (void)
 122 {
 123     static GType program_type = 0;
 124
 125     if (! program_type)
 126     {
 127         static const GTypeInfo program_info =
 128         {
 129             sizeof (HildonProgramClass),
 130             NULL,       /* base_init */
 131             NULL,       /* base_finalize */
 132             (GClassInitFunc) hildon_program_class_init,
 133             NULL,       /* class_finalize */
 134             NULL,       /* class_data */
 135             sizeof (HildonProgram),
 136             0,  /* n_preallocs */
 137             (GInstanceInitFunc) hildon_program_init,
 138         };
 139         program_type = g_type_register_static(G_TYPE_OBJECT,
 140                 "HildonProgram", &program_info, 0);
 141     }
 142     return program_type;
 143 }
 144
 145 static void
 146 hildon_program_init                             (HildonProgram *self)
 147 {
 148     HildonProgramPrivate *priv = HILDON_PROGRAM_GET_PRIVATE (self);
 149     g_assert (priv);
 150
 151     priv->killable = FALSE;
 152     priv->window_count = 0;
 153     priv->is_topmost = FALSE;
 154     priv->window_group = GDK_WINDOW_XID (gdk_display_get_default_group (gdk_display_get_default()));
 155     priv->common_menu = NULL;
 156     priv->common_app_menu = NULL;
 157     priv->common_toolbar = NULL;
 158     priv->windows = NULL;
 159 }
 160
 161 static void
 162 hildon_program_finalize                         (GObject *self)
 163 {
 164     HildonProgramPrivate *priv = HILDON_PROGRAM_GET_PRIVATE (HILDON_PROGRAM (self));
 165     g_assert (priv);
 166
 167     if (priv->common_toolbar)
 168     {
 169         g_object_unref (priv->common_toolbar);
 170         priv->common_toolbar = NULL;
 171     }
 172
 173     if (priv->common_menu)
 174     {
 175         g_object_unref (priv->common_menu);
 176         priv->common_menu = NULL;
 177     }
 178 }
 179
 180 static void
 181 hildon_program_class_init                       (HildonProgramClass *self)
 182 {
 183     GObjectClass *object_class = G_OBJECT_CLASS (self);
 184
 185     g_type_class_add_private (self, sizeof (HildonProgramPrivate));
 186
 187     /* Set up object virtual functions */
 188     object_class->finalize      = hildon_program_finalize;
 189     object_class->set_property  = hildon_program_set_property;
 190     object_class->get_property  = hildon_program_get_property;
 191
 192     /* Install properties */
 193
 194     /**
 195      * HildonProgram:is-topmost:
 196      *
 197      * Whether one of the program's window or dialog currently
 198      * is activated by window manager.
 199      */
 200     g_object_class_install_property (object_class, PROP_IS_TOPMOST,
 201                 g_param_spec_boolean ("is-topmost",
 202                 "Is top-most",
 203                 "Whether one of the program's window or dialog currently "
 204                 "is activated by window manager",
 205                 FALSE,
 206                 G_PARAM_READABLE));
 207
 208     /**
 209      * HildonProgram:can-hibernate:
 210      *
 211      * Whether the program should be set to hibernate by the Task
 212      * Navigator in low memory situation.
 213      */
 214     g_object_class_install_property (object_class, PROP_KILLABLE,
 215                 g_param_spec_boolean ("can-hibernate",
 216                 "Can hibernate",
 217                 "Whether the program should be set to hibernate by the Task "
 218                 "Navigator in low memory situation",
 219                 FALSE,
 220                 G_PARAM_READWRITE));
 221     return;
 222 }
 223
 224 static void
 225 hildon_program_set_property                     (GObject *object,
 226                                                  guint property_id,
 227                                                  const GValue *value,
 228                                                  GParamSpec *pspec)
 229 {
 230     switch (property_id) {
 231
 232         case PROP_KILLABLE:
 233             hildon_program_set_can_hibernate (HILDON_PROGRAM (object), g_value_get_boolean (value));
 234             break;
 235
 236         default:
 237             G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
 238             break;
 239     }
 240
 241 }
 242
 243 static void
 244 hildon_program_get_property                     (GObject *object,
 245                                                  guint property_id,
 246                                                  GValue *value,
 247                                                  GParamSpec *pspec)
 248 {
 249     HildonProgramPrivate *priv = HILDON_PROGRAM_GET_PRIVATE (object);
 250     g_assert (priv);
 251
 252     switch (property_id)
 253     {
 254         case PROP_KILLABLE:
 255             g_value_set_boolean (value, priv->killable);
 256             break;
 257
 258         case PROP_IS_TOPMOST:
 259             g_value_set_boolean (value, priv->is_topmost);
 260             break;
 261
 262         default:
 263             G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
 264             break;
 265     }
 266 }
 267
 268 /**
 269  * hildon_program_pop_window_stack:
 270  * @self: A #HildonProgram
 271  *
 272  * Pops a window from the stack.
 273  *
 274  * Deprecated: Use hildon_window_stack_pop() instead
 275  *
 276  * Returns: A #HildonStackableWindow, or %NULL
 277  *
 278  * Since: 2.2
 279  */
 280 HildonStackableWindow *
 281 hildon_program_pop_window_stack                 (HildonProgram *self)
 282 {
 283     HildonWindowStack *stack = hildon_window_stack_get_default ();
 284     GtkWidget *win = hildon_window_stack_pop_1 (stack);
 285     g_warning ("%s: this function is deprecated. Use hildon_window_stack_pop() instead", __FUNCTION__);
 286     return win ? HILDON_STACKABLE_WINDOW (win) : NULL;
 287 }
 288
 289 /**
 290  * hildon_program_peek_window_stack:
 291  * @self: A #HildonProgram
 292  *
 293  * Deprecated: Use hildon_window_stack_peek() instead
 294  *
 295  * Returns: A #HildonStackableWindow, or %NULL
 296  *
 297  * Since: 2.2
 298  */
 299 HildonStackableWindow *
 300 hildon_program_peek_window_stack                (HildonProgram *self)
 301 {
 302     HildonWindowStack *stack = hildon_window_stack_get_default ();
 303     GtkWidget *win = hildon_window_stack_peek (stack);
 304     g_warning ("%s: this function is deprecated. Use hildon_window_stack_peek() instead", __FUNCTION__);
 305     return win ? HILDON_STACKABLE_WINDOW (win) : NULL;
 306 }
 307
 308 /* Utilities */
 309 static gint
 310 hildon_program_window_list_compare              (gconstpointer window_a,
 311                                                  gconstpointer window_b)
 312 {
 313     g_return_val_if_fail (HILDON_IS_WINDOW(window_a) &&
 314                           HILDON_IS_WINDOW(window_b), 1);
 315
 316     return window_a != window_b;
 317 }
 318
 319 /*
 320  * foreach function, checks if a window is topmost and acts consequently
 321  */
 322 static void
 323 hildon_program_window_list_is_is_topmost        (gpointer data,
 324                                                  gpointer window_id_)
 325 {
 326     if (data && HILDON_IS_WINDOW (data))
 327     {
 328         HildonWindow *window = HILDON_WINDOW (data);
 329         Window window_id = * (Window*)window_id_;
 330
 331         hildon_window_update_topmost (window, window_id);
 332     }
 333 }
 334
 335 /*
 336  * Check the _MB_CURRENT_APP_WINDOW on the root window, and update
 337  * the top_most status accordingly
 338  */
 339 static void
 340 hildon_program_update_top_most                  (HildonProgram *program)
 341 {
 342     gboolean is_topmost;
 343     Window active_window;
 344     HildonProgramPrivate *priv;
 345
 346     priv = HILDON_PROGRAM_GET_PRIVATE (program);
 347     g_assert (priv);
 348
 349     active_window = hildon_window_get_active_window();
 350     is_topmost = FALSE;
 351
 352     if (active_window)
 353     {
 354       gint xerror;
 355       XWMHints *wm_hints;
 356
 357       gdk_error_trap_push ();
 358       wm_hints = XGetWMHints (GDK_DISPLAY (), active_window);
 359       xerror = gdk_error_trap_pop ();
 360       if (xerror && xerror != BadWindow)
 361       {
 362         if (wm_hints)
 363           XFree (wm_hints);
 364         return;
 365       }
 366
 367       if (wm_hints)
 368       {
 369         is_topmost = (wm_hints->window_group == priv->window_group);
 370         XFree (wm_hints);
 371       }
 372     }
 373
 374     /* Send notification if is_topmost has changed */
 375     if (!priv->is_topmost != !is_topmost)
 376     {
 377       priv->is_topmost = is_topmost;
 378       g_object_notify (G_OBJECT (program), "is-topmost");
 379     }
 380
 381     /* Check each window if it was is_topmost */
 382     g_slist_foreach (priv->windows,
 383             (GFunc)hildon_program_window_list_is_is_topmost, &active_window);
 384 }
 385
 386 /*
 387  * We keep track of the _MB_CURRENT_APP_WINDOW property on the root window,
 388  * to detect when a window belonging to this program was is_topmost. This
 389  * is based on the window group WM hint.
 390  */
 391 static GdkFilterReturn
 392 hildon_program_root_window_event_filter         (GdkXEvent *xevent,
 393                                                  GdkEvent *event,
 394                                                  gpointer data)
 395 {
 396     XAnyEvent *eventti = xevent;
 397     HildonProgram *program = HILDON_PROGRAM (data);
 398     Atom active_app_atom =
 399             XInternAtom (GDK_DISPLAY (), "_MB_CURRENT_APP_WINDOW", False);
 400
 401     if (eventti->type == PropertyNotify)
 402     {
 403         XPropertyEvent *pevent = xevent;
 404
 405         if (pevent->atom == active_app_atom)
 406         {
 407             hildon_program_update_top_most (program);
 408         }
 409     }
 410
 411     return GDK_FILTER_CONTINUE;
 412 }
 413
 414 static void
 415 hildon_program_window_set_common_menu_flag (HildonWindow *window,
 416                                             gboolean common_menu)
 417 {
 418     if (HILDON_IS_WINDOW (window))
 419     {
 420         gboolean has_menu = hildon_window_get_app_menu (window) ||
 421             hildon_window_get_main_menu (window);
 422
 423         if (!has_menu) {
 424             hildon_window_set_menu_flag (window, common_menu);
 425         }
 426     }
 427 }
 428
 429 static void
 430 hildon_program_set_common_menu_flag (HildonProgram *self,
 431                                      gboolean common_menu)
 432 {
 433     HildonProgramPrivate *priv = HILDON_PROGRAM_GET_PRIVATE (self);
 434
 435     g_slist_foreach (priv->windows,
 436                      (GFunc) hildon_program_window_set_common_menu_flag,
 437                      GINT_TO_POINTER (common_menu));
 438 }
 439
 440 /*
 441  * Checks if the window is the topmost window of the program and in
 442  * that case forces the window to take the common toolbar.
 443  */
 444 static void
 445 hildon_program_common_toolbar_topmost_window    (gpointer window,
 446                                                  gpointer data)
 447 {
 448     if (HILDON_IS_WINDOW (window) && hildon_window_get_is_topmost (HILDON_WINDOW (window)))
 449         hildon_window_take_common_toolbar (HILDON_WINDOW (window));
 450 }
 451
 452 /**
 453  * hildon_program_get_instance:
 454  *
 455  * Returns the #HildonProgram for the current process. The object is
 456  * created on the first call. Note that you're not supposed to unref
 457  * the returned object since it's not reffed in the first place.
 458  *
 459  * Return value: the #HildonProgram.
 460  **/
 461 HildonProgram*
 462 hildon_program_get_instance                     (void)
 463 {
 464     static HildonProgram *program = NULL;
 465
 466     if (! program)
 467     {
 468         program = g_object_new (HILDON_TYPE_PROGRAM, NULL);
 469     }
 470
 471     return program;
 472 }
 473
 474 /**
 475  * hildon_program_add_window:
 476  * @self: The #HildonProgram to which the window should be registered
 477  * @window: A #HildonWindow to be added
 478  *
 479  * Registers a #HildonWindow as belonging to a given #HildonProgram. This
 480  * allows to apply program-wide settings as all the registered windows,
 481  * such as hildon_program_set_common_menu(), hildon_program_set_common_app_menu()
 482  * and hildon_program_set_common_toolbar().
 483  **/
 484 void
 485 hildon_program_add_window                       (HildonProgram *self,
 486                                                  HildonWindow *window)
 487 {
 488     HildonProgramPrivate *priv;
 489
 490     g_return_if_fail (HILDON_IS_PROGRAM (self));
 491     g_return_if_fail (HILDON_IS_WINDOW (window));
 492
 493     priv = HILDON_PROGRAM_GET_PRIVATE (self);
 494     g_assert (priv);
 495
 496     if (g_slist_find_custom (priv->windows, window,
 497            hildon_program_window_list_compare) )
 498     {
 499         /* We already have that window */
 500         return;
 501     }
 502
 503     if (!priv->window_count)
 504     {
 505         hildon_program_update_top_most (self);
 506
 507         /* Now that we have a window we should start keeping track of
 508          * the root window */
 509         gdk_window_set_events (gdk_get_default_root_window (),
 510                 gdk_window_get_events (gdk_get_default_root_window ()) | GDK_PROPERTY_CHANGE_MASK);
 511
 512         gdk_window_add_filter (gdk_get_default_root_window (),
 513                 hildon_program_root_window_event_filter, self );
 514     }
 515
 516     hildon_window_set_can_hibernate_property (window, &priv->killable);
 517
 518     hildon_window_set_program (window, G_OBJECT (self));
 519
 520     if (priv->common_menu || priv->common_app_menu)
 521         hildon_program_window_set_common_menu_flag (window, TRUE);
 522
 523     priv->windows = g_slist_append (priv->windows, window);
 524     priv->window_count ++;
 525 }
 526
 527 /**
 528  * hildon_program_remove_window:
 529  * @self: The #HildonProgram to which the window should be unregistered
 530  * @window: The #HildonWindow to unregister
 531  *
 532  * Used to unregister a window from the program. Subsequent calls to
 533  * hildon_program_set_common_menu(), hildon_program_set_common_app_menu()
 534  * and hildon_program_set_common_toolbar() will not affect the window.
 535  **/
 536 void
 537 hildon_program_remove_window                    (HildonProgram *self,
 538                                                  HildonWindow *window)
 539 {
 540     HildonProgramPrivate *priv;
 541
 542     g_return_if_fail (HILDON_IS_PROGRAM (self));
 543     g_return_if_fail (HILDON_IS_WINDOW (window));
 544
 545     priv = HILDON_PROGRAM_GET_PRIVATE (self);
 546     g_assert (priv);
 547
 548     g_return_if_fail (g_slist_find (priv->windows, window));
 549
 550     hildon_window_unset_program (window);
 551
 552     priv->windows = g_slist_remove (priv->windows, window);
 553
 554     priv->window_count --;
 555
 556     if (! priv->window_count)
 557         gdk_window_remove_filter (gdk_get_default_root_window(),
 558                 hildon_program_root_window_event_filter,
 559                 self);
 560
 561     if (priv->common_menu || priv->common_app_menu)
 562         hildon_program_window_set_common_menu_flag (window, FALSE);
 563 }
 564
 565 /**
 566  * hildon_program_set_can_hibernate:
 567  * @self: The #HildonProgram which can hibernate or not
 568  * @can_hibernate: whether or not the #HildonProgram can hibernate
 569  *
 570  * Used to set whether or not the Hildon task navigator should
 571  * be able to set the program to hibernation in case of low memory
 572  **/
 573 void
 574 hildon_program_set_can_hibernate                (HildonProgram *self,
 575                                                  gboolean can_hibernate)
 576 {
 577     HildonProgramPrivate *priv;
 578
 579     g_return_if_fail (HILDON_IS_PROGRAM (self));
 580
 581     priv = HILDON_PROGRAM_GET_PRIVATE (self);
 582     g_assert (priv);
 583
 584     if (priv->killable != can_hibernate)
 585     {
 586         g_slist_foreach (priv->windows,
 587                 (GFunc) hildon_window_set_can_hibernate_property, &can_hibernate);
 588     }
 589
 590     priv->killable = can_hibernate;
 591 }
 592
 593 /**
 594  * hildon_program_get_can_hibernate:
 595  * @self: The #HildonProgram which can hibernate or not
 596  *
 597  * Returns whether the #HildonProgram is set to be support hibernation
 598  * from the Hildon task navigator
 599  *
 600  * Return value: %TRUE if the program can hibernate, %FALSE otherwise.
 601  **/
 602 gboolean
 603 hildon_program_get_can_hibernate                (HildonProgram *self)
 604 {
 605     HildonProgramPrivate *priv;
 606
 607     g_return_val_if_fail (HILDON_IS_PROGRAM (self), FALSE);
 608
 609     priv = HILDON_PROGRAM_GET_PRIVATE (self);
 610     g_assert (priv);
 611
 612     return priv->killable;
 613 }
 614
 615 /**
 616  * hildon_program_set_common_menu:
 617  * @self: The #HildonProgram in which the common menu should be used
 618  * @menu: A #GtkMenu to use as common menu for the program
 619  *
 620  * Sets a #GtkMenu that will appear in all #HildonWindow<!-- -->s
 621  * registered with the #HildonProgram. Only one common #GtkMenu can be
 622  * set, further calls will detach the previous common #GtkMenu. A
 623  * #HildonWindow can use its own #GtkMenu with
 624  * hildon_window_set_menu()
 625  *
 626  * This method does not support #HildonAppMenu<!-- -->s. See
 627  * hildon_program_set_common_app_menu() for that.
 628  **/
 629 void
 630 hildon_program_set_common_menu                  (HildonProgram *self,
 631                                                  GtkMenu *menu)
 632 {
 633     HildonProgramPrivate *priv;
 634
 635     g_return_if_fail (HILDON_IS_PROGRAM (self));
 636
 637     priv = HILDON_PROGRAM_GET_PRIVATE (self);
 638     g_assert (priv);
 639
 640     if (priv->common_menu)
 641     {
 642         if (GTK_WIDGET_VISIBLE (priv->common_menu))
 643         {
 644             gtk_menu_popdown (priv->common_menu);
 645             gtk_menu_shell_deactivate (GTK_MENU_SHELL (priv->common_menu));
 646         }
 647
 648         if (gtk_menu_get_attach_widget (priv->common_menu))
 649         {
 650             gtk_menu_detach (priv->common_menu);
 651         }
 652         else
 653         {
 654             g_object_unref (priv->common_menu);
 655         }
 656     }
 657
 658     /* Only set the menu flag if there was no common menu and
 659        we are setting one. If we are unsetting the current common menu,
 660        remove the commmon menu flag. Otherwise, nothing to do. */
 661     if (!priv->common_menu && menu) {
 662         hildon_program_set_common_menu_flag (self, TRUE);
 663     } else if (priv->common_menu && !menu) {
 664         hildon_program_set_common_menu_flag (self, FALSE);
 665     }
 666
 667     priv->common_menu = menu;
 668
 669     if (priv->common_menu)
 670     {
 671         g_object_ref (menu);
 672         gtk_object_sink (GTK_OBJECT (menu));
 673         gtk_widget_show_all (GTK_WIDGET (menu));
 674     }
 675 }
 676
 677 /**
 678  * hildon_program_get_common_menu:
 679  * @self: The #HildonProgram from which to retrieve the common menu
 680  *
 681  * Returns the #GtkMenu that was set as common menu for this
 682  * #HildonProgram.
 683  *
 684  * Return value: the #GtkMenu or %NULL of no common menu was set.
 685  **/
 686 GtkMenu*
 687 hildon_program_get_common_menu                  (HildonProgram *self)
 688 {
 689     HildonProgramPrivate *priv;
 690
 691     g_return_val_if_fail (HILDON_IS_PROGRAM (self), NULL);
 692
 693     priv = HILDON_PROGRAM_GET_PRIVATE (self);
 694     g_assert (priv);
 695
 696     return priv->common_menu;
 697 }
 698
 699 static void
 700 hildon_program_on_common_app_menu_changed       (HildonAppMenu *menu,
 701                                                  HildonProgram *program)
 702 {
 703     hildon_program_set_common_menu_flag (program,
 704                                          hildon_app_menu_has_visible_children (menu));
 705 }
 706
 707 /**
 708  * hildon_program_set_common_app_menu:
 709  * @self: The #HildonProgram in which the common menu should be used
 710  * @menu: A #HildonAppMenu to use as common menu for the program
 711  *
 712  * Sets a #HildonAppMenu that will appear in all
 713  * #HildonWindow<!-- -->s registered with the #HildonProgram. Only
 714  * one common #HildonAppMenu can be set, further calls will detach the
 715  * previous common #HildonAppMenu. A #HildonWindow can use its own
 716  * #HildonAppMenu with hildon_window_set_app_menu()
 717  *
 718  * This method does not support #GtkMenu<!-- -->s. See
 719  * hildon_program_set_common_menu() for that.
 720  *
 721  * Since: 2.2
 722  **/
 723 void
 724 hildon_program_set_common_app_menu              (HildonProgram *self,
 725                                                  HildonAppMenu *menu)
 726 {
 727     HildonProgramPrivate *priv;
 728     HildonAppMenu *old_menu;
 729
 730     g_return_if_fail (HILDON_IS_PROGRAM (self));
 731     g_return_if_fail (menu == NULL || HILDON_IS_APP_MENU (menu));
 732
 733     priv = HILDON_PROGRAM_GET_PRIVATE (self);
 734     g_assert (priv);
 735
 736     old_menu = priv->common_app_menu;
 737
 738     /* Only set the menu flag if there was no common menu and
 739        we are setting one. If we are unsetting the current common menu,
 740        remove the commmon menu flag. Otherwise, nothing to do. */
 741     if (!priv->common_app_menu
 742         && menu && hildon_app_menu_has_visible_children (menu)) {
 743         hildon_program_set_common_menu_flag (self, TRUE);
 744     } else if (priv->common_app_menu &&
 745                (!menu || !hildon_app_menu_has_visible_children (menu))) {
 746         hildon_program_set_common_menu_flag (self, FALSE);
 747     }
 748
 749     /* Set new menu */
 750     priv->common_app_menu = menu;
 751     if (menu) {
 752         g_signal_connect (menu, "changed",
 753                           G_CALLBACK (hildon_program_on_common_app_menu_changed), self);
 754         g_object_ref_sink (menu);
 755     }
 756
 757     /* Hide and unref old menu */
 758     if (old_menu) {
 759         hildon_app_menu_set_parent_window (old_menu, NULL);
 760         g_signal_handlers_disconnect_by_func (old_menu,
 761                                               hildon_program_on_common_app_menu_changed,
 762                                               self);
 763         g_object_unref (old_menu);
 764     }
 765 }
 766
 767 /**
 768  * hildon_program_get_common_app_menu:
 769  * @self: The #HildonProgram from which to retrieve the common app menu
 770  *
 771  * Returns the #HildonAppMenu that was set as common menu for this
 772  * #HildonProgram.
 773  *
 774  * Return value: the #HildonAppMenu or %NULL of no common app menu was
 775  * set.
 776  *
 777  * Since: 2.2
 778  **/
 779 HildonAppMenu*
 780 hildon_program_get_common_app_menu              (HildonProgram *self)
 781 {
 782     HildonProgramPrivate *priv;
 783
 784     g_return_val_if_fail (HILDON_IS_PROGRAM (self), NULL);
 785
 786     priv = HILDON_PROGRAM_GET_PRIVATE (self);
 787     g_assert (priv);
 788
 789     return priv->common_app_menu;
 790 }
 791
 792 /**
 793  * hildon_program_set_common_toolbar:
 794  * @self: The #HildonProgram in which the common toolbar should be used
 795  * @toolbar: A #GtkToolbar to use as common toolbar for the program
 796  *
 797  * Sets a #GtkToolbar that will appear in all the #HildonWindow registered
 798  * to the #HildonProgram. Only one common #GtkToolbar can be set, further
 799  * call will detach the previous common #GtkToolbar. A #HildonWindow
 800  * can use its own #GtkToolbar with hildon_window_add_toolbar(). Both
 801  * #HildonProgram and #HildonWindow specific toolbars will be shown
 802  **/
 803 void
 804 hildon_program_set_common_toolbar               (HildonProgram *self,
 805                                                  GtkToolbar *toolbar)
 806 {
 807     HildonProgramPrivate *priv;
 808
 809     g_return_if_fail (HILDON_IS_PROGRAM (self));
 810
 811     priv = HILDON_PROGRAM_GET_PRIVATE (self);
 812     g_assert (priv);
 813
 814     if (priv->common_toolbar)
 815     {
 816         if (priv->common_toolbar->parent)
 817         {
 818             gtk_container_remove (GTK_CONTAINER (priv->common_toolbar->parent),
 819                                   priv->common_toolbar);
 820         }
 821
 822         g_object_unref (priv->common_toolbar);
 823     }
 824
 825     priv->common_toolbar = GTK_WIDGET (toolbar);
 826
 827     if (priv->common_toolbar)
 828     {
 829         g_object_ref (priv->common_toolbar);
 830         gtk_object_sink (GTK_OBJECT (priv->common_toolbar) );
 831     }
 832
 833     /* if the program is the topmost we have to update the common
 834        toolbar right now for the topmost window */
 835     if (priv->is_topmost)
 836       {
 837         g_slist_foreach (priv->windows,
 838                          (GFunc) hildon_program_common_toolbar_topmost_window, NULL);
 839       }
 840 }
 841
 842 /**
 843  * hildon_program_get_common_toolbar:
 844  * @self: The #HildonProgram from which to retrieve the common toolbar
 845  *
 846  * Returns the #GtkToolbar that was set as common toolbar for this
 847  * #HildonProgram.
 848  *
 849  * Return value: the #GtkToolbar or %NULL of no common toolbar was
 850  * set.
 851  **/
 852 GtkToolbar*
 853 hildon_program_get_common_toolbar               (HildonProgram *self)
 854 {
 855     HildonProgramPrivate *priv;
 856
 857     g_return_val_if_fail (HILDON_IS_PROGRAM (self), NULL);
 858
 859     priv = HILDON_PROGRAM_GET_PRIVATE (self);
 860     g_assert (priv);
 861
 862     return priv->common_toolbar ? GTK_TOOLBAR (priv->common_toolbar) : NULL;
 863 }
 864
 865 /**
 866  * hildon_program_get_is_topmost:
 867  * @self: A #HildonWindow
 868  *
 869  * Returns whether one of the program's windows or dialogs is
 870  * currently activated by the window manager.
 871  *
 872  * Return value: %TRUE if a window or dialog is topmost, %FALSE
 873  * otherwise.
 874  **/
 875 gboolean
 876 hildon_program_get_is_topmost                   (HildonProgram *self)
 877 {
 878     HildonProgramPrivate *priv;
 879
 880     g_return_val_if_fail (HILDON_IS_PROGRAM (self), FALSE);
 881
 882     priv = HILDON_PROGRAM_GET_PRIVATE (self);
 883     g_assert (priv);
 884
 885     return priv->is_topmost;
 886 }
 887
 888 /**
 889  * hildon_program_go_to_root_window:
 890  * @self: A #HildonProgram
 891  *
 892  * Goes to the root window of the stack.
 893  *
 894  * Deprecated: See #HildonWindowStack
 895  *
 896  * Since: 2.2
 897  */
 898 void
 899 hildon_program_go_to_root_window                (HildonProgram *self)
 900 {
 901     HildonWindowStack *stack = hildon_window_stack_get_default ();
 902     gint n = hildon_window_stack_size (stack);
 903     g_warning ("%s: this function is deprecated. Use hildon_window_stack_pop() instead.", __FUNCTION__);
 904     if (n > 1) {
 905         hildon_window_stack_pop (stack, n-1, NULL);
 906     }
 907 }