Pileus Git - ~andy/gtk/blob - gtk/gtkplug.c

   1 /* GTK - The GIMP Toolkit
   2  * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free
  16  * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17  */
  18
  19 /* By Owen Taylor <otaylor@gtk.org>              98/4/4 */
  20
  21 /*
  22  * Modified by the GTK+ Team and others 1997-2000.  See the AUTHORS
  23  * file for a list of people on the GTK+ Team.  See the ChangeLog
  24  * files for a list of changes.  These files are distributed with
  25  * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
  26  */
  27
  28 #include "config.h"
  29
  30 #include "gtkmain.h"
  31 #include "gtkmarshalers.h"
  32 #include "gtkplug.h"
  33 #include "gtkintl.h"
  34 #include "gtkprivate.h"
  35 #include "gtkplugprivate.h"
  36
  37 #include "gtkalias.h"
  38
  39 static void            gtk_plug_get_property          (GObject     *object,
  40                                                        guint        prop_id,
  41                                                        GValue      *value,
  42                                                        GParamSpec  *pspec);
  43 static void            gtk_plug_finalize              (GObject          *object);
  44 static void            gtk_plug_realize               (GtkWidget        *widget);
  45 static void            gtk_plug_unrealize             (GtkWidget        *widget);
  46 static void            gtk_plug_show                  (GtkWidget        *widget);
  47 static void            gtk_plug_hide                  (GtkWidget        *widget);
  48 static void            gtk_plug_map                   (GtkWidget        *widget);
  49 static void            gtk_plug_unmap                 (GtkWidget        *widget);
  50 static void            gtk_plug_size_allocate         (GtkWidget        *widget,
  51                                                        GtkAllocation    *allocation);
  52 static gboolean        gtk_plug_key_press_event       (GtkWidget        *widget,
  53                                                        GdkEventKey      *event);
  54 static gboolean        gtk_plug_focus_event           (GtkWidget        *widget,
  55                                                        GdkEventFocus    *event);
  56 static void            gtk_plug_set_focus             (GtkWindow        *window,
  57                                                        GtkWidget        *focus);
  58 static gboolean        gtk_plug_focus                 (GtkWidget        *widget,
  59                                                        GtkDirectionType  direction);
  60 static void            gtk_plug_check_resize          (GtkContainer     *container);
  61 static void            gtk_plug_keys_changed          (GtkWindow        *window);
  62
  63 static GtkBinClass *bin_class = NULL;
  64
  65 typedef struct
  66 {
  67   guint                  accelerator_key;
  68   GdkModifierType        accelerator_mods;
  69 } GrabbedKey;
  70
  71 enum {
  72   PROP_0,
  73   PROP_EMBEDDED,
  74   PROP_SOCKET_WINDOW
  75 };
  76
  77 enum {
  78   EMBEDDED,
  79   LAST_SIGNAL
  80 };
  81
  82 static guint plug_signals[LAST_SIGNAL] = { 0 };
  83
  84 G_DEFINE_TYPE (GtkPlug, gtk_plug, GTK_TYPE_WINDOW)
  85
  86 static void
  87 gtk_plug_get_property (GObject    *object,
  88                        guint       prop_id,
  89                        GValue     *value,
  90                        GParamSpec *pspec)
  91 {
  92   GtkPlug *plug = GTK_PLUG (object);
  93
  94   switch (prop_id)
  95     {
  96     case PROP_EMBEDDED:
  97       g_value_set_boolean (value, plug->socket_window != NULL);
  98       break;
  99     case PROP_SOCKET_WINDOW:
 100       g_value_set_object (value, plug->socket_window);
 101       break;
 102     default:
 103       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 104       break;
 105     }
 106 }
 107
 108 static void
 109 gtk_plug_class_init (GtkPlugClass *class)
 110 {
 111   GObjectClass *gobject_class = (GObjectClass *)class;
 112   GtkWidgetClass *widget_class = (GtkWidgetClass *)class;
 113   GtkWindowClass *window_class = (GtkWindowClass *)class;
 114   GtkContainerClass *container_class = (GtkContainerClass *)class;
 115
 116   bin_class = g_type_class_peek (GTK_TYPE_BIN);
 117
 118   gobject_class->get_property = gtk_plug_get_property;
 119   gobject_class->finalize = gtk_plug_finalize;
 120
 121   widget_class->realize = gtk_plug_realize;
 122   widget_class->unrealize = gtk_plug_unrealize;
 123   widget_class->key_press_event = gtk_plug_key_press_event;
 124   widget_class->focus_in_event = gtk_plug_focus_event;
 125   widget_class->focus_out_event = gtk_plug_focus_event;
 126
 127   widget_class->show = gtk_plug_show;
 128   widget_class->hide = gtk_plug_hide;
 129   widget_class->map = gtk_plug_map;
 130   widget_class->unmap = gtk_plug_unmap;
 131   widget_class->size_allocate = gtk_plug_size_allocate;
 132
 133   widget_class->focus = gtk_plug_focus;
 134
 135   container_class->check_resize = gtk_plug_check_resize;
 136
 137   window_class->set_focus = gtk_plug_set_focus;
 138   window_class->keys_changed = gtk_plug_keys_changed;
 139
 140   /**
 141    * GtkPlug:embedded:
 142    *
 143    * %TRUE if the plug is embedded in a socket.
 144    *
 145    * Since: 2.12
 146    */
 147   g_object_class_install_property (gobject_class,
 148                                    PROP_EMBEDDED,
 149                                    g_param_spec_boolean ("embedded",
 150                                                          P_("Embedded"),
 151                                                          P_("Whether or not the plug is embedded"),
 152                                                          FALSE,
 153                                                          GTK_PARAM_READABLE));
 154
 155   /**
 156    * GtkPlug:socket-window:
 157    *
 158    * The window of the socket the plug is embedded in.
 159    *
 160    * Since: 2.14
 161    */
 162   g_object_class_install_property (gobject_class,
 163                                    PROP_SOCKET_WINDOW,
 164                                    g_param_spec_object ("socket-window",
 165                                                         P_("Socket Window"),
 166                                                         P_("The window of the socket the plug is embedded in"),
 167                                                         GDK_TYPE_WINDOW,
 168                                                         GTK_PARAM_READABLE));
 169
 170   /**
 171    * GtkPlug::embedded:
 172    * @plug: the object on which the signal was emitted
 173    *
 174    * Gets emitted when the plug becomes embedded in a socket.
 175    */
 176   plug_signals[EMBEDDED] =
 177     g_signal_new (I_("embedded"),
 178                   G_OBJECT_CLASS_TYPE (class),
 179                   G_SIGNAL_RUN_LAST,
 180                   G_STRUCT_OFFSET (GtkPlugClass, embedded),
 181                   NULL, NULL,
 182                   _gtk_marshal_VOID__VOID,
 183                   G_TYPE_NONE, 0);
 184 }
 185
 186 static void
 187 gtk_plug_init (GtkPlug *plug)
 188 {
 189   GtkWindow *window;
 190
 191   window = GTK_WINDOW (plug);
 192
 193   window->type = GTK_WINDOW_TOPLEVEL;
 194 }
 195
 196 static void
 197 gtk_plug_set_is_child (GtkPlug  *plug,
 198                        gboolean  is_child)
 199 {
 200   g_assert (!GTK_WIDGET (plug)->parent);
 201
 202   if (is_child)
 203     {
 204       if (plug->modality_window)
 205         _gtk_plug_handle_modality_off (plug);
 206
 207       if (plug->modality_group)
 208         {
 209           gtk_window_group_remove_window (plug->modality_group, GTK_WINDOW (plug));
 210           g_object_unref (plug->modality_group);
 211           plug->modality_group = NULL;
 212         }
 213
 214       /* As a toplevel, the MAPPED flag doesn't correspond
 215        * to whether the widget->window is mapped; we unmap
 216        * here, but don't bother remapping -- we will get mapped
 217        * by gtk_widget_set_parent ().
 218        */
 219       if (gtk_widget_get_mapped (GTK_WIDGET (plug)))
 220         gtk_widget_unmap (GTK_WIDGET (plug));
 221
 222       _gtk_window_set_is_toplevel (GTK_WINDOW (plug), FALSE);
 223       gtk_container_set_resize_mode (GTK_CONTAINER (plug), GTK_RESIZE_PARENT);
 224
 225       _gtk_widget_propagate_hierarchy_changed (GTK_WIDGET (plug), GTK_WIDGET (plug));
 226     }
 227   else
 228     {
 229       if (GTK_WINDOW (plug)->focus_widget)
 230         gtk_window_set_focus (GTK_WINDOW (plug), NULL);
 231       if (GTK_WINDOW (plug)->default_widget)
 232         gtk_window_set_default (GTK_WINDOW (plug), NULL);
 233
 234       plug->modality_group = gtk_window_group_new ();
 235       gtk_window_group_add_window (plug->modality_group, GTK_WINDOW (plug));
 236
 237       _gtk_window_set_is_toplevel (GTK_WINDOW (plug), TRUE);
 238       gtk_container_set_resize_mode (GTK_CONTAINER (plug), GTK_RESIZE_QUEUE);
 239
 240       _gtk_widget_propagate_hierarchy_changed (GTK_WIDGET (plug), NULL);
 241     }
 242 }
 243
 244 /**
 245  * gtk_plug_get_id:
 246  * @plug: a #GtkPlug.
 247  *
 248  * Gets the window ID of a #GtkPlug widget, which can then
 249  * be used to embed this window inside another window, for
 250  * instance with gtk_socket_add_id().
 251  *
 252  * Return value: the window ID for the plug
 253  **/
 254 GdkNativeWindow
 255 gtk_plug_get_id (GtkPlug *plug)
 256 {
 257   g_return_val_if_fail (GTK_IS_PLUG (plug), 0);
 258
 259   if (!GTK_WIDGET_REALIZED (plug))
 260     gtk_widget_realize (GTK_WIDGET (plug));
 261
 262   return _gtk_plug_windowing_get_id (plug);
 263 }
 264
 265 /**
 266  * gtk_plug_get_embedded:
 267  * @plug: a #GtkPlug
 268  *
 269  * Determines whether the plug is embedded in a socket.
 270  *
 271  * Return value: %TRUE if the plug is embedded in a socket
 272  *
 273  * Since: 2.14
 274  **/
 275 gboolean
 276 gtk_plug_get_embedded (GtkPlug *plug)
 277 {
 278   g_return_val_if_fail (GTK_IS_PLUG (plug), FALSE);
 279
 280   return plug->socket_window != NULL;
 281 }
 282
 283 /**
 284  * gtk_plug_get_socket_window:
 285  * @plug: a #GtkPlug
 286  *
 287  * Retrieves the socket the plug is embedded in.
 288  *
 289  * Return value: the window of the socket, or %NULL
 290  *
 291  * Since: 2.14
 292  **/
 293 GdkWindow *
 294 gtk_plug_get_socket_window (GtkPlug *plug)
 295 {
 296   g_return_val_if_fail (GTK_IS_PLUG (plug), NULL);
 297
 298   return plug->socket_window;
 299 }
 300
 301 /**
 302  * _gtk_plug_add_to_socket:
 303  * @plug: a #GtkPlug
 304  * @socket_: a #GtkSocket
 305  *
 306  * Adds a plug to a socket within the same application.
 307  **/
 308 void
 309 _gtk_plug_add_to_socket (GtkPlug   *plug,
 310                          GtkSocket *socket_)
 311 {
 312   GtkWidget *widget;
 313   gint w, h;
 314
 315   g_return_if_fail (GTK_IS_PLUG (plug));
 316   g_return_if_fail (GTK_IS_SOCKET (socket_));
 317   g_return_if_fail (GTK_WIDGET_REALIZED (socket_));
 318
 319   widget = GTK_WIDGET (plug);
 320
 321   gtk_plug_set_is_child (plug, TRUE);
 322   plug->same_app = TRUE;
 323   socket_->same_app = TRUE;
 324   socket_->plug_widget = widget;
 325
 326   plug->socket_window = GTK_WIDGET (socket_)->window;
 327   g_object_ref (plug->socket_window);
 328   g_signal_emit (plug, plug_signals[EMBEDDED], 0);
 329   g_object_notify (G_OBJECT (plug), "embedded");
 330
 331   if (GTK_WIDGET_REALIZED (widget))
 332     {
 333       gdk_drawable_get_size (GDK_DRAWABLE (widget->window), &w, &h);
 334       gdk_window_reparent (widget->window, plug->socket_window, -w, -h);
 335     }
 336
 337   gtk_widget_set_parent (widget, GTK_WIDGET (socket_));
 338
 339   g_signal_emit_by_name (socket_, "plug-added");
 340 }
 341
 342 /**
 343  * _gtk_plug_send_delete_event:
 344  * @widget: a #GtkWidget
 345  *
 346  * Send a GDK_DELETE event to the @widget and destroy it if
 347  * necessary. Internal GTK function, called from this file or the
 348  * backend-specific GtkPlug implementation.
 349  */
 350 void
 351 _gtk_plug_send_delete_event (GtkWidget *widget)
 352 {
 353   GdkEvent *event = gdk_event_new (GDK_DELETE);
 354
 355   event->any.window = g_object_ref (widget->window);
 356   event->any.send_event = FALSE;
 357
 358   g_object_ref (widget);
 359
 360   if (!gtk_widget_event (widget, event))
 361     gtk_widget_destroy (widget);
 362
 363   g_object_unref (widget);
 364
 365   gdk_event_free (event);
 366 }
 367
 368 /**
 369  * _gtk_plug_remove_from_socket:
 370  * @plug: a #GtkPlug
 371  * @socket_: a #GtkSocket
 372  *
 373  * Removes a plug from a socket within the same application.
 374  **/
 375 void
 376 _gtk_plug_remove_from_socket (GtkPlug   *plug,
 377                               GtkSocket *socket_)
 378 {
 379   GtkWidget *widget;
 380   gboolean result;
 381   gboolean widget_was_visible;
 382
 383   g_return_if_fail (GTK_IS_PLUG (plug));
 384   g_return_if_fail (GTK_IS_SOCKET (socket_));
 385   g_return_if_fail (GTK_WIDGET_REALIZED (plug));
 386
 387   widget = GTK_WIDGET (plug);
 388
 389   if (GTK_WIDGET_IN_REPARENT (widget))
 390     return;
 391
 392   g_object_ref (plug);
 393   g_object_ref (socket_);
 394
 395   widget_was_visible = gtk_widget_get_visible (widget);
 396
 397   gdk_window_hide (widget->window);
 398   GTK_PRIVATE_SET_FLAG (plug, GTK_IN_REPARENT);
 399   gdk_window_reparent (widget->window,
 400                        gtk_widget_get_root_window (widget),
 401                        0, 0);
 402   gtk_widget_unparent (GTK_WIDGET (plug));
 403   GTK_PRIVATE_UNSET_FLAG (plug, GTK_IN_REPARENT);
 404
 405   socket_->plug_widget = NULL;
 406   if (socket_->plug_window != NULL)
 407     {
 408       g_object_unref (socket_->plug_window);
 409       socket_->plug_window = NULL;
 410     }
 411
 412   socket_->same_app = FALSE;
 413
 414   plug->same_app = FALSE;
 415   if (plug->socket_window != NULL)
 416     {
 417       g_object_unref (plug->socket_window);
 418       plug->socket_window = NULL;
 419     }
 420   gtk_plug_set_is_child (plug, FALSE);
 421
 422   g_signal_emit_by_name (socket_, "plug-removed", &result);
 423   if (!result)
 424     gtk_widget_destroy (GTK_WIDGET (socket_));
 425
 426   if (widget->window)
 427     _gtk_plug_send_delete_event (widget);
 428
 429   g_object_unref (plug);
 430
 431   if (widget_was_visible && gtk_widget_get_visible (GTK_WIDGET (socket_)))
 432     gtk_widget_queue_resize (GTK_WIDGET (socket_));
 433
 434   g_object_unref (socket_);
 435 }
 436
 437 /**
 438  * gtk_plug_construct:
 439  * @plug: a #GtkPlug.
 440  * @socket_id: the XID of the socket's window.
 441  *
 442  * Finish the initialization of @plug for a given #GtkSocket identified by
 443  * @socket_id. This function will generally only be used by classes deriving from #GtkPlug.
 444  **/
 445 void
 446 gtk_plug_construct (GtkPlug         *plug,
 447                     GdkNativeWindow  socket_id)
 448 {
 449   gtk_plug_construct_for_display (plug, gdk_display_get_default (), socket_id);
 450 }
 451
 452 /**
 453  * gtk_plug_construct_for_display:
 454  * @plug: a #GtkPlug.
 455  * @display: the #GdkDisplay associated with @socket_id's
 456  *           #GtkSocket.
 457  * @socket_id: the XID of the socket's window.
 458  *
 459  * Finish the initialization of @plug for a given #GtkSocket identified by
 460  * @socket_id which is currently displayed on @display.
 461  * This function will generally only be used by classes deriving from #GtkPlug.
 462  *
 463  * Since: 2.2
 464  **/
 465 void
 466 gtk_plug_construct_for_display (GtkPlug         *plug,
 467                                 GdkDisplay      *display,
 468                                 GdkNativeWindow  socket_id)
 469 {
 470   if (socket_id)
 471     {
 472       gpointer user_data = NULL;
 473
 474       plug->socket_window = gdk_window_lookup_for_display (display, socket_id);
 475       if (plug->socket_window)
 476         {
 477           gdk_window_get_user_data (plug->socket_window, &user_data);
 478
 479           if (user_data)
 480             {
 481               if (GTK_IS_SOCKET (user_data))
 482                 _gtk_plug_add_to_socket (plug, user_data);
 483               else
 484                 {
 485                   g_warning (G_STRLOC "Can't create GtkPlug as child of non-GtkSocket");
 486                   plug->socket_window = NULL;
 487                 }
 488             }
 489           else
 490             g_object_ref (plug->socket_window);
 491         }
 492       else
 493         plug->socket_window = gdk_window_foreign_new_for_display (display, socket_id);
 494
 495       if (plug->socket_window) {
 496         g_signal_emit (plug, plug_signals[EMBEDDED], 0);
 497
 498         g_object_notify (G_OBJECT (plug), "embedded");
 499       }
 500     }
 501 }
 502
 503 /**
 504  * gtk_plug_new:
 505  * @socket_id:  the window ID of the socket, or 0.
 506  *
 507  * Creates a new plug widget inside the #GtkSocket identified
 508  * by @socket_id. If @socket_id is 0, the plug is left "unplugged" and
 509  * can later be plugged into a #GtkSocket by  gtk_socket_add_id().
 510  *
 511  * Return value: the new #GtkPlug widget.
 512  **/
 513 GtkWidget*
 514 gtk_plug_new (GdkNativeWindow socket_id)
 515 {
 516   return gtk_plug_new_for_display (gdk_display_get_default (), socket_id);
 517 }
 518
 519 /**
 520  * gtk_plug_new_for_display:
 521  * @display : the #GdkDisplay on which @socket_id is displayed
 522  * @socket_id: the XID of the socket's window.
 523  *
 524  * Create a new plug widget inside the #GtkSocket identified by socket_id.
 525  *
 526  * Return value: the new #GtkPlug widget.
 527  *
 528  * Since: 2.2
 529  */
 530 GtkWidget*
 531 gtk_plug_new_for_display (GdkDisplay      *display,
 532                           GdkNativeWindow  socket_id)
 533 {
 534   GtkPlug *plug;
 535
 536   plug = g_object_new (GTK_TYPE_PLUG, NULL);
 537   gtk_plug_construct_for_display (plug, display, socket_id);
 538   return GTK_WIDGET (plug);
 539 }
 540
 541 static void
 542 gtk_plug_finalize (GObject *object)
 543 {
 544   GtkPlug *plug = GTK_PLUG (object);
 545
 546   if (plug->grabbed_keys)
 547     {
 548       g_hash_table_destroy (plug->grabbed_keys);
 549       plug->grabbed_keys = NULL;
 550     }
 551
 552   G_OBJECT_CLASS (gtk_plug_parent_class)->finalize (object);
 553 }
 554
 555 static void
 556 gtk_plug_unrealize (GtkWidget *widget)
 557 {
 558   GtkPlug *plug = GTK_PLUG (widget);
 559
 560   if (plug->socket_window != NULL)
 561     {
 562       gdk_window_set_user_data (plug->socket_window, NULL);
 563       g_object_unref (plug->socket_window);
 564       plug->socket_window = NULL;
 565
 566       g_object_notify (G_OBJECT (widget), "embedded");
 567     }
 568
 569   if (!plug->same_app)
 570     {
 571       if (plug->modality_window)
 572         _gtk_plug_handle_modality_off (plug);
 573
 574       gtk_window_group_remove_window (plug->modality_group, GTK_WINDOW (plug));
 575       g_object_unref (plug->modality_group);
 576     }
 577
 578   GTK_WIDGET_CLASS (gtk_plug_parent_class)->unrealize (widget);
 579 }
 580
 581 static void
 582 gtk_plug_realize (GtkWidget *widget)
 583 {
 584   GtkWindow *window = GTK_WINDOW (widget);
 585   GtkPlug *plug = GTK_PLUG (widget);
 586   GdkWindowAttr attributes;
 587   gint attributes_mask;
 588
 589   GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
 590
 591   attributes.window_type = GDK_WINDOW_CHILD;    /* XXX GDK_WINDOW_PLUG ? */
 592   attributes.title = window->title;
 593   attributes.wmclass_name = window->wmclass_name;
 594   attributes.wmclass_class = window->wmclass_class;
 595   attributes.width = widget->allocation.width;
 596   attributes.height = widget->allocation.height;
 597   attributes.wclass = GDK_INPUT_OUTPUT;
 598
 599   /* this isn't right - we should match our parent's visual/colormap.
 600    * though that will require handling "foreign" colormaps */
 601   attributes.visual = gtk_widget_get_visual (widget);
 602   attributes.colormap = gtk_widget_get_colormap (widget);
 603   attributes.event_mask = gtk_widget_get_events (widget);
 604   attributes.event_mask |= (GDK_EXPOSURE_MASK |
 605                             GDK_KEY_PRESS_MASK |
 606                             GDK_KEY_RELEASE_MASK |
 607                             GDK_ENTER_NOTIFY_MASK |
 608                             GDK_LEAVE_NOTIFY_MASK |
 609                             GDK_STRUCTURE_MASK);
 610
 611   attributes_mask = GDK_WA_VISUAL | GDK_WA_COLORMAP;
 612   attributes_mask |= (window->title ? GDK_WA_TITLE : 0);
 613   attributes_mask |= (window->wmclass_name ? GDK_WA_WMCLASS : 0);
 614
 615   if (gtk_widget_is_toplevel (widget))
 616     {
 617       attributes.window_type = GDK_WINDOW_TOPLEVEL;
 618
 619       gdk_error_trap_push ();
 620       if (plug->socket_window)
 621         widget->window = gdk_window_new (plug->socket_window,
 622                                          &attributes, attributes_mask);
 623       else /* If it's a passive plug, we use the root window */
 624         widget->window = gdk_window_new (gtk_widget_get_root_window (widget),
 625                                          &attributes, attributes_mask);
 626
 627       gdk_display_sync (gtk_widget_get_display (widget));
 628       if (gdk_error_trap_pop ()) /* Uh-oh */
 629         {
 630           gdk_error_trap_push ();
 631           gdk_window_destroy (widget->window);
 632           gdk_flush ();
 633           gdk_error_trap_pop ();
 634           widget->window = gdk_window_new (gtk_widget_get_root_window (widget),
 635                                            &attributes, attributes_mask);
 636         }
 637
 638       gdk_window_add_filter (widget->window,
 639                              _gtk_plug_windowing_filter_func,
 640                              widget);
 641
 642       plug->modality_group = gtk_window_group_new ();
 643       gtk_window_group_add_window (plug->modality_group, window);
 644
 645       _gtk_plug_windowing_realize_toplevel (plug);
 646     }
 647   else
 648     widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
 649                                      &attributes, attributes_mask);
 650
 651   gdk_window_set_user_data (widget->window, window);
 652
 653   widget->style = gtk_style_attach (widget->style, widget->window);
 654   gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
 655
 656   gdk_window_enable_synchronized_configure (widget->window);
 657 }
 658
 659 static void
 660 gtk_plug_show (GtkWidget *widget)
 661 {
 662   if (gtk_widget_is_toplevel (widget))
 663     GTK_WIDGET_CLASS (gtk_plug_parent_class)->show (widget);
 664   else
 665     GTK_WIDGET_CLASS (bin_class)->show (widget);
 666 }
 667
 668 static void
 669 gtk_plug_hide (GtkWidget *widget)
 670 {
 671   if (gtk_widget_is_toplevel (widget))
 672     GTK_WIDGET_CLASS (gtk_plug_parent_class)->hide (widget);
 673   else
 674     GTK_WIDGET_CLASS (bin_class)->hide (widget);
 675 }
 676
 677 /* From gdkinternals.h */
 678 void gdk_synthesize_window_state (GdkWindow     *window,
 679                                   GdkWindowState unset_flags,
 680                                   GdkWindowState set_flags);
 681
 682 static void
 683 gtk_plug_map (GtkWidget *widget)
 684 {
 685   if (gtk_widget_is_toplevel (widget))
 686     {
 687       GtkBin *bin = GTK_BIN (widget);
 688       GtkPlug *plug = GTK_PLUG (widget);
 689
 690       GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
 691
 692       if (bin->child &&
 693           gtk_widget_get_visible (bin->child) &&
 694           !gtk_widget_get_mapped (bin->child))
 695         gtk_widget_map (bin->child);
 696
 697       _gtk_plug_windowing_map_toplevel (plug);
 698
 699       gdk_synthesize_window_state (widget->window,
 700                                    GDK_WINDOW_STATE_WITHDRAWN,
 701                                    0);
 702     }
 703   else
 704     GTK_WIDGET_CLASS (bin_class)->map (widget);
 705 }
 706
 707 static void
 708 gtk_plug_unmap (GtkWidget *widget)
 709 {
 710   if (gtk_widget_is_toplevel (widget))
 711     {
 712       GtkPlug *plug = GTK_PLUG (widget);
 713
 714       GTK_WIDGET_UNSET_FLAGS (widget, GTK_MAPPED);
 715
 716       gdk_window_hide (widget->window);
 717
 718       _gtk_plug_windowing_unmap_toplevel (plug);
 719
 720       gdk_synthesize_window_state (widget->window,
 721                                    0,
 722                                    GDK_WINDOW_STATE_WITHDRAWN);
 723     }
 724   else
 725     GTK_WIDGET_CLASS (bin_class)->unmap (widget);
 726 }
 727
 728 static void
 729 gtk_plug_size_allocate (GtkWidget     *widget,
 730                         GtkAllocation *allocation)
 731 {
 732   if (gtk_widget_is_toplevel (widget))
 733     GTK_WIDGET_CLASS (gtk_plug_parent_class)->size_allocate (widget, allocation);
 734   else
 735     {
 736       GtkBin *bin = GTK_BIN (widget);
 737
 738       widget->allocation = *allocation;
 739
 740       if (GTK_WIDGET_REALIZED (widget))
 741         gdk_window_move_resize (widget->window,
 742                                 allocation->x, allocation->y,
 743                                 allocation->width, allocation->height);
 744
 745       if (bin->child && gtk_widget_get_visible (bin->child))
 746         {
 747           GtkAllocation child_allocation;
 748
 749           child_allocation.x = child_allocation.y = GTK_CONTAINER (widget)->border_width;
 750           child_allocation.width =
 751             MAX (1, (gint)allocation->width - child_allocation.x * 2);
 752           child_allocation.height =
 753             MAX (1, (gint)allocation->height - child_allocation.y * 2);
 754
 755           gtk_widget_size_allocate (bin->child, &child_allocation);
 756         }
 757
 758     }
 759 }
 760
 761 static gboolean
 762 gtk_plug_key_press_event (GtkWidget   *widget,
 763                           GdkEventKey *event)
 764 {
 765   if (gtk_widget_is_toplevel (widget))
 766     return GTK_WIDGET_CLASS (gtk_plug_parent_class)->key_press_event (widget, event);
 767   else
 768     return FALSE;
 769 }
 770
 771 static gboolean
 772 gtk_plug_focus_event (GtkWidget      *widget,
 773                       GdkEventFocus  *event)
 774 {
 775   /* We eat focus-in events and focus-out events, since they
 776    * can be generated by something like a keyboard grab on
 777    * a child of the plug.
 778    */
 779   return FALSE;
 780 }
 781
 782 static void
 783 gtk_plug_set_focus (GtkWindow *window,
 784                     GtkWidget *focus)
 785 {
 786   GtkPlug *plug = GTK_PLUG (window);
 787
 788   GTK_WINDOW_CLASS (gtk_plug_parent_class)->set_focus (window, focus);
 789
 790   /* Ask for focus from embedder
 791    */
 792
 793   if (focus && !window->has_toplevel_focus)
 794     _gtk_plug_windowing_set_focus (plug);
 795 }
 796
 797 static guint
 798 grabbed_key_hash (gconstpointer a)
 799 {
 800   const GrabbedKey *key = a;
 801   guint h;
 802
 803   h = key->accelerator_key << 16;
 804   h ^= key->accelerator_key >> 16;
 805   h ^= key->accelerator_mods;
 806
 807   return h;
 808 }
 809
 810 static gboolean
 811 grabbed_key_equal (gconstpointer a, gconstpointer b)
 812 {
 813   const GrabbedKey *keya = a;
 814   const GrabbedKey *keyb = b;
 815
 816   return (keya->accelerator_key == keyb->accelerator_key &&
 817           keya->accelerator_mods == keyb->accelerator_mods);
 818 }
 819
 820 static void
 821 add_grabbed_key (gpointer key, gpointer val, gpointer data)
 822 {
 823   GrabbedKey *grabbed_key = key;
 824   GtkPlug *plug = data;
 825
 826   if (!plug->grabbed_keys ||
 827       !g_hash_table_lookup (plug->grabbed_keys, grabbed_key))
 828     {
 829       _gtk_plug_windowing_add_grabbed_key (plug,
 830                                            grabbed_key->accelerator_key,
 831                                            grabbed_key->accelerator_mods);
 832     }
 833 }
 834
 835 static void
 836 add_grabbed_key_always (gpointer key,
 837                         gpointer val,
 838                         gpointer data)
 839 {
 840   GrabbedKey *grabbed_key = key;
 841   GtkPlug *plug = data;
 842
 843   _gtk_plug_windowing_add_grabbed_key (plug,
 844                                        grabbed_key->accelerator_key,
 845                                        grabbed_key->accelerator_mods);
 846 }
 847
 848 /**
 849  * _gtk_plug_add_all_grabbed_keys:
 850  *
 851  * @plug: a #GtkPlug
 852  *
 853  * Calls _gtk_plug_windowing_add_grabbed_key() on all the grabbed keys
 854  * in the @plug.
 855  */
 856 void
 857 _gtk_plug_add_all_grabbed_keys (GtkPlug *plug)
 858 {
 859   if (plug->grabbed_keys)
 860     g_hash_table_foreach (plug->grabbed_keys, add_grabbed_key_always, plug);
 861 }
 862
 863 static void
 864 remove_grabbed_key (gpointer key, gpointer val, gpointer data)
 865 {
 866   GrabbedKey *grabbed_key = key;
 867   GtkPlug *plug = data;
 868
 869   if (!plug->grabbed_keys ||
 870       !g_hash_table_lookup (plug->grabbed_keys, grabbed_key))
 871     {
 872       _gtk_plug_windowing_remove_grabbed_key (plug,
 873                                               grabbed_key->accelerator_key,
 874                                               grabbed_key->accelerator_mods);
 875     }
 876 }
 877
 878 static void
 879 keys_foreach (GtkWindow      *window,
 880               guint           keyval,
 881               GdkModifierType modifiers,
 882               gboolean        is_mnemonic,
 883               gpointer        data)
 884 {
 885   GHashTable *new_grabbed_keys = data;
 886   GrabbedKey *key = g_slice_new (GrabbedKey);
 887
 888   key->accelerator_key = keyval;
 889   key->accelerator_mods = modifiers;
 890
 891   g_hash_table_replace (new_grabbed_keys, key, key);
 892 }
 893
 894 static void
 895 grabbed_key_free (gpointer data)
 896 {
 897   g_slice_free (GrabbedKey, data);
 898 }
 899
 900 static void
 901 gtk_plug_keys_changed (GtkWindow *window)
 902 {
 903   GHashTable *new_grabbed_keys, *old_grabbed_keys;
 904   GtkPlug *plug = GTK_PLUG (window);
 905
 906   new_grabbed_keys = g_hash_table_new_full (grabbed_key_hash, grabbed_key_equal, (GDestroyNotify)grabbed_key_free, NULL);
 907   _gtk_window_keys_foreach (window, keys_foreach, new_grabbed_keys);
 908
 909   if (plug->socket_window)
 910     g_hash_table_foreach (new_grabbed_keys, add_grabbed_key, plug);
 911
 912   old_grabbed_keys = plug->grabbed_keys;
 913   plug->grabbed_keys = new_grabbed_keys;
 914
 915   if (old_grabbed_keys)
 916     {
 917       if (plug->socket_window)
 918         g_hash_table_foreach (old_grabbed_keys, remove_grabbed_key, plug);
 919       g_hash_table_destroy (old_grabbed_keys);
 920     }
 921 }
 922
 923 static gboolean
 924 gtk_plug_focus (GtkWidget        *widget,
 925                 GtkDirectionType  direction)
 926 {
 927   GtkBin *bin = GTK_BIN (widget);
 928   GtkPlug *plug = GTK_PLUG (widget);
 929   GtkWindow *window = GTK_WINDOW (widget);
 930   GtkContainer *container = GTK_CONTAINER (widget);
 931   GtkWidget *old_focus_child = container->focus_child;
 932   GtkWidget *parent;
 933
 934   /* We override GtkWindow's behavior, since we don't want wrapping here.
 935    */
 936   if (old_focus_child)
 937     {
 938       if (gtk_widget_child_focus (old_focus_child, direction))
 939         return TRUE;
 940
 941       if (window->focus_widget)
 942         {
 943           /* Wrapped off the end, clear the focus setting for the toplevel */
 944           parent = window->focus_widget->parent;
 945           while (parent)
 946             {
 947               gtk_container_set_focus_child (GTK_CONTAINER (parent), NULL);
 948               parent = GTK_WIDGET (parent)->parent;
 949             }
 950
 951           gtk_window_set_focus (GTK_WINDOW (container), NULL);
 952         }
 953     }
 954   else
 955     {
 956       /* Try to focus the first widget in the window */
 957       if (bin->child && gtk_widget_child_focus (bin->child, direction))
 958         return TRUE;
 959     }
 960
 961   if (!GTK_CONTAINER (window)->focus_child)
 962     _gtk_plug_windowing_focus_to_parent (plug, direction);
 963
 964   return FALSE;
 965 }
 966
 967 static void
 968 gtk_plug_check_resize (GtkContainer *container)
 969 {
 970   if (gtk_widget_is_toplevel (GTK_WIDGET (container)))
 971     GTK_CONTAINER_CLASS (gtk_plug_parent_class)->check_resize (container);
 972   else
 973     GTK_CONTAINER_CLASS (bin_class)->check_resize (container);
 974 }
 975
 976 /**
 977  * _gtk_plug_handle_modality_on:
 978  *
 979  * @plug: a #GtkPlug
 980  *
 981  * Called from the GtkPlug backend when the corresponding socket has
 982  * told the plug that it modality has toggled on.
 983  */
 984 void
 985 _gtk_plug_handle_modality_on (GtkPlug *plug)
 986 {
 987   if (!plug->modality_window)
 988     {
 989       plug->modality_window = gtk_window_new (GTK_WINDOW_POPUP);
 990       gtk_window_set_screen (GTK_WINDOW (plug->modality_window),
 991                              gtk_widget_get_screen (GTK_WIDGET (plug)));
 992       gtk_widget_realize (plug->modality_window);
 993       gtk_window_group_add_window (plug->modality_group, GTK_WINDOW (plug->modality_window));
 994       gtk_grab_add (plug->modality_window);
 995     }
 996 }
 997
 998 /**
 999  * _gtk_plug_handle_modality_off:
1000  *
1001  * @plug: a #GtkPlug
1002  *
1003  * Called from the GtkPlug backend when the corresponding socket has
1004  * told the plug that it modality has toggled off.
1005  */
1006 void
1007 _gtk_plug_handle_modality_off (GtkPlug *plug)
1008 {
1009   if (plug->modality_window)
1010     {
1011       gtk_widget_destroy (plug->modality_window);
1012       plug->modality_window = NULL;
1013     }
1014 }
1015
1016 /**
1017  * _gtk_plug_focus_first_last:
1018  *
1019  * @plug: a #GtkPlug
1020  * @direction: a direction
1021  *
1022  * Called from the GtkPlug backend when the corresponding socket has
1023  * told the plug that it has received the focus.
1024  */
1025 void
1026 _gtk_plug_focus_first_last (GtkPlug          *plug,
1027                             GtkDirectionType  direction)
1028 {
1029   GtkWindow *window = GTK_WINDOW (plug);
1030   GtkWidget *parent;
1031
1032   if (window->focus_widget)
1033     {
1034       parent = window->focus_widget->parent;
1035       while (parent)
1036         {
1037           gtk_container_set_focus_child (GTK_CONTAINER (parent), NULL);
1038           parent = GTK_WIDGET (parent)->parent;
1039         }
1040
1041       gtk_window_set_focus (GTK_WINDOW (plug), NULL);
1042     }
1043
1044   gtk_widget_child_focus (GTK_WIDGET (plug), direction);
1045 }
1046
1047 #define __GTK_PLUG_C__
1048 #include "gtkaliasdef.c"