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

   1 /* GTK - The GTK+ 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    * and when the embedding ends.
 176    */
 177   plug_signals[EMBEDDED] =
 178     g_signal_new (I_("embedded"),
 179                   G_OBJECT_CLASS_TYPE (class),
 180                   G_SIGNAL_RUN_LAST,
 181                   G_STRUCT_OFFSET (GtkPlugClass, embedded),
 182                   NULL, NULL,
 183                   _gtk_marshal_VOID__VOID,
 184                   G_TYPE_NONE, 0);
 185 }
 186
 187 static void
 188 gtk_plug_init (GtkPlug *plug)
 189 {
 190   GtkWindow *window;
 191
 192   window = GTK_WINDOW (plug);
 193
 194   window->type = GTK_WINDOW_TOPLEVEL;
 195 }
 196
 197 static void
 198 gtk_plug_set_is_child (GtkPlug  *plug,
 199                        gboolean  is_child)
 200 {
 201   g_assert (!GTK_WIDGET (plug)->parent);
 202
 203   if (is_child)
 204     {
 205       if (plug->modality_window)
 206         _gtk_plug_handle_modality_off (plug);
 207
 208       if (plug->modality_group)
 209         {
 210           gtk_window_group_remove_window (plug->modality_group, GTK_WINDOW (plug));
 211           g_object_unref (plug->modality_group);
 212           plug->modality_group = NULL;
 213         }
 214
 215       /* As a toplevel, the MAPPED flag doesn't correspond
 216        * to whether the widget->window is mapped; we unmap
 217        * here, but don't bother remapping -- we will get mapped
 218        * by gtk_widget_set_parent ().
 219        */
 220       if (GTK_WIDGET_MAPPED (plug))
 221         gtk_widget_unmap (GTK_WIDGET (plug));
 222
 223       GTK_WIDGET_UNSET_FLAGS (plug, GTK_TOPLEVEL);
 224       gtk_container_set_resize_mode (GTK_CONTAINER (plug), GTK_RESIZE_PARENT);
 225
 226       _gtk_widget_propagate_hierarchy_changed (GTK_WIDGET (plug), GTK_WIDGET (plug));
 227     }
 228   else
 229     {
 230       if (GTK_WINDOW (plug)->focus_widget)
 231         gtk_window_set_focus (GTK_WINDOW (plug), NULL);
 232       if (GTK_WINDOW (plug)->default_widget)
 233         gtk_window_set_default (GTK_WINDOW (plug), NULL);
 234
 235       plug->modality_group = gtk_window_group_new ();
 236       gtk_window_group_add_window (plug->modality_group, GTK_WINDOW (plug));
 237
 238       GTK_WIDGET_SET_FLAGS (plug, GTK_TOPLEVEL);
 239       gtk_container_set_resize_mode (GTK_CONTAINER (plug), GTK_RESIZE_QUEUE);
 240
 241       _gtk_widget_propagate_hierarchy_changed (GTK_WIDGET (plug), NULL);
 242     }
 243 }
 244
 245 /**
 246  * gtk_plug_get_id:
 247  * @plug: a #GtkPlug.
 248  *
 249  * Gets the window ID of a #GtkPlug widget, which can then
 250  * be used to embed this window inside another window, for
 251  * instance with gtk_socket_add_id().
 252  *
 253  * Return value: the window ID for the plug
 254  **/
 255 GdkNativeWindow
 256 gtk_plug_get_id (GtkPlug *plug)
 257 {
 258   g_return_val_if_fail (GTK_IS_PLUG (plug), 0);
 259
 260   if (!GTK_WIDGET_REALIZED (plug))
 261     gtk_widget_realize (GTK_WIDGET (plug));
 262
 263   return _gtk_plug_windowing_get_id (plug);
 264 }
 265
 266 /**
 267  * gtk_plug_get_embedded:
 268  * @plug: a #GtkPlug
 269  *
 270  * Determines whether the plug is embedded in a socket.
 271  *
 272  * Return value: %TRUE if the plug is embedded in a socket
 273  *
 274  * Since: 2.14
 275  **/
 276 gboolean
 277 gtk_plug_get_embedded (GtkPlug *plug)
 278 {
 279   g_return_val_if_fail (GTK_IS_PLUG (plug), FALSE);
 280
 281   return plug->socket_window != NULL;
 282 }
 283
 284 /**
 285  * gtk_plug_get_socket_window:
 286  * @plug: a #GtkPlug
 287  *
 288  * Retrieves the socket the plug is embedded in.
 289  *
 290  * Return value: the window of the socket, or %NULL
 291  *
 292  * Since: 2.14
 293  **/
 294 GdkWindow *
 295 gtk_plug_get_socket_window (GtkPlug *plug)
 296 {
 297   g_return_val_if_fail (GTK_IS_PLUG (plug), NULL);
 298
 299   return plug->socket_window;
 300 }
 301
 302 /**
 303  * _gtk_plug_add_to_socket:
 304  * @plug: a #GtkPlug
 305  * @socket_: a #GtkSocket
 306  *
 307  * Adds a plug to a socket within the same application.
 308  **/
 309 void
 310 _gtk_plug_add_to_socket (GtkPlug   *plug,
 311                          GtkSocket *socket_)
 312 {
 313   GtkWidget *widget;
 314   gint w, h;
 315
 316   g_return_if_fail (GTK_IS_PLUG (plug));
 317   g_return_if_fail (GTK_IS_SOCKET (socket_));
 318   g_return_if_fail (GTK_WIDGET_REALIZED (socket_));
 319
 320   widget = GTK_WIDGET (plug);
 321
 322   gtk_plug_set_is_child (plug, TRUE);
 323   plug->same_app = TRUE;
 324   socket_->same_app = TRUE;
 325   socket_->plug_widget = widget;
 326
 327   plug->socket_window = GTK_WIDGET (socket_)->window;
 328
 329   if (GTK_WIDGET_REALIZED (widget))
 330     {
 331       gdk_drawable_get_size (GDK_DRAWABLE (widget->window), &w, &h);
 332       gdk_window_reparent (widget->window, plug->socket_window, -w, -h);
 333     }
 334
 335   gtk_widget_set_parent (widget, GTK_WIDGET (socket_));
 336
 337   g_signal_emit_by_name (socket_, "plug_added");
 338 }
 339
 340 /**
 341  * _gtk_plug_send_delete_event:
 342  * @widget: a #GtkWidget
 343  *
 344  * Send a GDK_DELETE event to the @widget and destroy it if
 345  * necessary. Internal GTK function, called from this file or the
 346  * backend-specific GtkPlug implementation.
 347  */
 348 void
 349 _gtk_plug_send_delete_event (GtkWidget *widget)
 350 {
 351   GdkEvent *event = gdk_event_new (GDK_DELETE);
 352
 353   event->any.window = g_object_ref (widget->window);
 354   event->any.send_event = FALSE;
 355
 356   g_object_ref (widget);
 357
 358   if (!gtk_widget_event (widget, event))
 359     gtk_widget_destroy (widget);
 360
 361   g_object_unref (widget);
 362
 363   gdk_event_free (event);
 364 }
 365
 366 /**
 367  * _gtk_plug_remove_from_socket:
 368  * @plug: a #GtkPlug
 369  * @socket_: a #GtkSocket
 370  *
 371  * Removes a plug from a socket within the same application.
 372  **/
 373 void
 374 _gtk_plug_remove_from_socket (GtkPlug   *plug,
 375                               GtkSocket *socket_)
 376 {
 377   GtkWidget *widget;
 378   gboolean result;
 379   gboolean widget_was_visible;
 380
 381   g_return_if_fail (GTK_IS_PLUG (plug));
 382   g_return_if_fail (GTK_IS_SOCKET (socket_));
 383   g_return_if_fail (GTK_WIDGET_REALIZED (plug));
 384
 385   widget = GTK_WIDGET (plug);
 386
 387   if (GTK_WIDGET_IN_REPARENT (widget))
 388     return;
 389
 390   g_object_ref (plug);
 391   g_object_ref (socket_);
 392
 393   widget_was_visible = GTK_WIDGET_VISIBLE (plug);
 394
 395   gdk_window_hide (widget->window);
 396   GTK_PRIVATE_SET_FLAG (plug, GTK_IN_REPARENT);
 397   gdk_window_reparent (widget->window,
 398                        gtk_widget_get_root_window (widget),
 399                        0, 0);
 400   gtk_widget_unparent (GTK_WIDGET (plug));
 401   GTK_PRIVATE_UNSET_FLAG (plug, GTK_IN_REPARENT);
 402
 403   socket_->plug_widget = NULL;
 404   if (socket_->plug_window != NULL)
 405     {
 406       g_object_unref (socket_->plug_window);
 407       socket_->plug_window = NULL;
 408     }
 409
 410   socket_->same_app = FALSE;
 411
 412   plug->same_app = FALSE;
 413   plug->socket_window = NULL;
 414
 415   gtk_plug_set_is_child (plug, FALSE);
 416
 417   g_signal_emit_by_name (socket_, "plug_removed", &result);
 418   if (!result)
 419     gtk_widget_destroy (GTK_WIDGET (socket_));
 420
 421   if (widget->window)
 422     _gtk_plug_send_delete_event (widget);
 423
 424   g_object_unref (plug);
 425
 426   if (widget_was_visible && GTK_WIDGET_VISIBLE (socket_))
 427     gtk_widget_queue_resize (GTK_WIDGET (socket_));
 428
 429   g_object_unref (socket_);
 430 }
 431
 432 /**
 433  * gtk_plug_construct:
 434  * @plug: a #GtkPlug.
 435  * @socket_id: the XID of the socket's window.
 436  *
 437  * Finish the initialization of @plug for a given #GtkSocket identified by
 438  * @socket_id. This function will generally only be used by classes deriving from #GtkPlug.
 439  **/
 440 void
 441 gtk_plug_construct (GtkPlug         *plug,
 442                     GdkNativeWindow  socket_id)
 443 {
 444   gtk_plug_construct_for_display (plug, gdk_display_get_default (), socket_id);
 445 }
 446
 447 /**
 448  * gtk_plug_construct_for_display:
 449  * @plug: a #GtkPlug.
 450  * @display: the #GdkDisplay associated with @socket_id's
 451  *           #GtkSocket.
 452  * @socket_id: the XID of the socket's window.
 453  *
 454  * Finish the initialization of @plug for a given #GtkSocket identified by
 455  * @socket_id which is currently displayed on @display.
 456  * This function will generally only be used by classes deriving from #GtkPlug.
 457  *
 458  * Since: 2.2
 459  **/
 460 void
 461 gtk_plug_construct_for_display (GtkPlug         *plug,
 462                                 GdkDisplay      *display,
 463                                 GdkNativeWindow  socket_id)
 464 {
 465   if (socket_id)
 466     {
 467       gpointer user_data = NULL;
 468
 469       plug->socket_window = gdk_window_lookup_for_display (display, socket_id);
 470
 471       if (plug->socket_window)
 472         gdk_window_get_user_data (plug->socket_window, &user_data);
 473       else
 474         plug->socket_window = gdk_window_foreign_new_for_display (display, socket_id);
 475
 476       if (user_data)
 477         {
 478           if (GTK_IS_SOCKET (user_data))
 479             _gtk_plug_add_to_socket (plug, user_data);
 480           else
 481             {
 482               g_warning (G_STRLOC "Can't create GtkPlug as child of non-GtkSocket");
 483               plug->socket_window = NULL;
 484             }
 485         }
 486
 487       if (plug->socket_window) {
 488         g_signal_emit (plug, plug_signals[EMBEDDED], 0);
 489
 490         g_object_notify (G_OBJECT (plug), "embedded");
 491       }
 492     }
 493 }
 494
 495 /**
 496  * gtk_plug_new:
 497  * @socket_id:  the window ID of the socket, or 0.
 498  *
 499  * Creates a new plug widget inside the #GtkSocket identified
 500  * by @socket_id. If @socket_id is 0, the plug is left "unplugged" and
 501  * can later be plugged into a #GtkSocket by  gtk_socket_add_id().
 502  *
 503  * Return value: the new #GtkPlug widget.
 504  **/
 505 GtkWidget*
 506 gtk_plug_new (GdkNativeWindow socket_id)
 507 {
 508   return gtk_plug_new_for_display (gdk_display_get_default (), socket_id);
 509 }
 510
 511 /**
 512  * gtk_plug_new_for_display:
 513  * @display : the #GdkDisplay on which @socket_id is displayed
 514  * @socket_id: the XID of the socket's window.
 515  *
 516  * Create a new plug widget inside the #GtkSocket identified by socket_id.
 517  *
 518  * Return value: the new #GtkPlug widget.
 519  *
 520  * Since: 2.2
 521  */
 522 GtkWidget*
 523 gtk_plug_new_for_display (GdkDisplay      *display,
 524                           GdkNativeWindow  socket_id)
 525 {
 526   GtkPlug *plug;
 527
 528   plug = g_object_new (GTK_TYPE_PLUG, NULL);
 529   gtk_plug_construct_for_display (plug, display, socket_id);
 530   return GTK_WIDGET (plug);
 531 }
 532
 533 static void
 534 gtk_plug_finalize (GObject *object)
 535 {
 536   GtkPlug *plug = GTK_PLUG (object);
 537
 538   if (plug->grabbed_keys)
 539     {
 540       g_hash_table_destroy (plug->grabbed_keys);
 541       plug->grabbed_keys = NULL;
 542     }
 543
 544   G_OBJECT_CLASS (gtk_plug_parent_class)->finalize (object);
 545 }
 546
 547 static void
 548 gtk_plug_unrealize (GtkWidget *widget)
 549 {
 550   GtkPlug *plug = GTK_PLUG (widget);
 551
 552   if (plug->socket_window != NULL)
 553     {
 554       gdk_window_set_user_data (plug->socket_window, NULL);
 555       g_object_unref (plug->socket_window);
 556       plug->socket_window = NULL;
 557
 558       g_object_notify (G_OBJECT (widget), "embedded");
 559     }
 560
 561   if (!plug->same_app)
 562     {
 563       if (plug->modality_window)
 564         _gtk_plug_handle_modality_off (plug);
 565
 566       gtk_window_group_remove_window (plug->modality_group, GTK_WINDOW (plug));
 567       g_object_unref (plug->modality_group);
 568     }
 569
 570   if (GTK_WIDGET_CLASS (gtk_plug_parent_class)->unrealize)
 571     (* GTK_WIDGET_CLASS (gtk_plug_parent_class)->unrealize) (widget);
 572 }
 573
 574 static void
 575 gtk_plug_realize (GtkWidget *widget)
 576 {
 577   GtkWindow *window = GTK_WINDOW (widget);
 578   GtkPlug *plug = GTK_PLUG (widget);
 579   GdkWindowAttr attributes;
 580   gint attributes_mask;
 581
 582   GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
 583
 584   attributes.window_type = GDK_WINDOW_CHILD;    /* XXX GDK_WINDOW_PLUG ? */
 585   attributes.title = window->title;
 586   attributes.wmclass_name = window->wmclass_name;
 587   attributes.wmclass_class = window->wmclass_class;
 588   attributes.width = widget->allocation.width;
 589   attributes.height = widget->allocation.height;
 590   attributes.wclass = GDK_INPUT_OUTPUT;
 591
 592   /* this isn't right - we should match our parent's visual/colormap.
 593    * though that will require handling "foreign" colormaps */
 594   attributes.visual = gtk_widget_get_visual (widget);
 595   attributes.colormap = gtk_widget_get_colormap (widget);
 596   attributes.event_mask = gtk_widget_get_events (widget);
 597   attributes.event_mask |= (GDK_EXPOSURE_MASK |
 598                             GDK_KEY_PRESS_MASK |
 599                             GDK_KEY_RELEASE_MASK |
 600                             GDK_ENTER_NOTIFY_MASK |
 601                             GDK_LEAVE_NOTIFY_MASK |
 602                             GDK_STRUCTURE_MASK);
 603
 604   attributes_mask = GDK_WA_VISUAL | GDK_WA_COLORMAP;
 605   attributes_mask |= (window->title ? GDK_WA_TITLE : 0);
 606   attributes_mask |= (window->wmclass_name ? GDK_WA_WMCLASS : 0);
 607
 608   if (GTK_WIDGET_TOPLEVEL (widget))
 609     {
 610       attributes.window_type = GDK_WINDOW_TOPLEVEL;
 611
 612       gdk_error_trap_push ();
 613       if (plug->socket_window)
 614         widget->window = gdk_window_new (plug->socket_window,
 615                                          &attributes, attributes_mask);
 616       else /* If it's a passive plug, we use the root window */
 617         widget->window = gdk_window_new (gtk_widget_get_root_window (widget),
 618                                          &attributes, attributes_mask);
 619
 620       gdk_display_sync (gtk_widget_get_display (widget));
 621       if (gdk_error_trap_pop ()) /* Uh-oh */
 622         {
 623           gdk_error_trap_push ();
 624           gdk_window_destroy (widget->window);
 625           gdk_flush ();
 626           gdk_error_trap_pop ();
 627           widget->window = gdk_window_new (gtk_widget_get_root_window (widget),
 628                                            &attributes, attributes_mask);
 629         }
 630
 631       gdk_window_add_filter (widget->window,
 632                              _gtk_plug_windowing_filter_func,
 633                              widget);
 634
 635       plug->modality_group = gtk_window_group_new ();
 636       gtk_window_group_add_window (plug->modality_group, window);
 637
 638       _gtk_plug_windowing_realize_toplevel (plug);
 639     }
 640   else
 641     widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
 642                                      &attributes, attributes_mask);
 643
 644   gdk_window_set_user_data (widget->window, window);
 645
 646   widget->style = gtk_style_attach (widget->style, widget->window);
 647   gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
 648
 649   gdk_window_enable_synchronized_configure (widget->window);
 650 }
 651
 652 static void
 653 gtk_plug_show (GtkWidget *widget)
 654 {
 655   if (GTK_WIDGET_TOPLEVEL (widget))
 656     GTK_WIDGET_CLASS (gtk_plug_parent_class)->show (widget);
 657   else
 658     GTK_WIDGET_CLASS (bin_class)->show (widget);
 659 }
 660
 661 static void
 662 gtk_plug_hide (GtkWidget *widget)
 663 {
 664   if (GTK_WIDGET_TOPLEVEL (widget))
 665     GTK_WIDGET_CLASS (gtk_plug_parent_class)->hide (widget);
 666   else
 667     GTK_WIDGET_CLASS (bin_class)->hide (widget);
 668 }
 669
 670 /* From gdkinternals.h */
 671 void gdk_synthesize_window_state (GdkWindow     *window,
 672                                   GdkWindowState unset_flags,
 673                                   GdkWindowState set_flags);
 674
 675 static void
 676 gtk_plug_map (GtkWidget *widget)
 677 {
 678   if (GTK_WIDGET_TOPLEVEL (widget))
 679     {
 680       GtkBin *bin = GTK_BIN (widget);
 681       GtkPlug *plug = GTK_PLUG (widget);
 682
 683       GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
 684
 685       if (bin->child &&
 686           GTK_WIDGET_VISIBLE (bin->child) &&
 687           !GTK_WIDGET_MAPPED (bin->child))
 688         gtk_widget_map (bin->child);
 689
 690       _gtk_plug_windowing_map_toplevel (plug);
 691
 692       gdk_synthesize_window_state (widget->window,
 693                                    GDK_WINDOW_STATE_WITHDRAWN,
 694                                    0);
 695     }
 696   else
 697     GTK_WIDGET_CLASS (bin_class)->map (widget);
 698 }
 699
 700 static void
 701 gtk_plug_unmap (GtkWidget *widget)
 702 {
 703   if (GTK_WIDGET_TOPLEVEL (widget))
 704     {
 705       GtkPlug *plug = GTK_PLUG (widget);
 706
 707       GTK_WIDGET_UNSET_FLAGS (widget, GTK_MAPPED);
 708
 709       gdk_window_hide (widget->window);
 710
 711       _gtk_plug_windowing_unmap_toplevel (plug);
 712
 713       gdk_synthesize_window_state (widget->window,
 714                                    0,
 715                                    GDK_WINDOW_STATE_WITHDRAWN);
 716     }
 717   else
 718     GTK_WIDGET_CLASS (bin_class)->unmap (widget);
 719 }
 720
 721 static void
 722 gtk_plug_size_allocate (GtkWidget     *widget,
 723                         GtkAllocation *allocation)
 724 {
 725   if (GTK_WIDGET_TOPLEVEL (widget))
 726     GTK_WIDGET_CLASS (gtk_plug_parent_class)->size_allocate (widget, allocation);
 727   else
 728     {
 729       GtkBin *bin = GTK_BIN (widget);
 730
 731       widget->allocation = *allocation;
 732
 733       if (GTK_WIDGET_REALIZED (widget))
 734         gdk_window_move_resize (widget->window,
 735                                 allocation->x, allocation->y,
 736                                 allocation->width, allocation->height);
 737
 738       if (bin->child && GTK_WIDGET_VISIBLE (bin->child))
 739         {
 740           GtkAllocation child_allocation;
 741
 742           child_allocation.x = child_allocation.y = GTK_CONTAINER (widget)->border_width;
 743           child_allocation.width =
 744             MAX (1, (gint)allocation->width - child_allocation.x * 2);
 745           child_allocation.height =
 746             MAX (1, (gint)allocation->height - child_allocation.y * 2);
 747
 748           gtk_widget_size_allocate (bin->child, &child_allocation);
 749         }
 750
 751     }
 752 }
 753
 754 static gboolean
 755 gtk_plug_key_press_event (GtkWidget   *widget,
 756                           GdkEventKey *event)
 757 {
 758   if (GTK_WIDGET_TOPLEVEL (widget))
 759     return GTK_WIDGET_CLASS (gtk_plug_parent_class)->key_press_event (widget, event);
 760   else
 761     return FALSE;
 762 }
 763
 764 static gboolean
 765 gtk_plug_focus_event (GtkWidget      *widget,
 766                       GdkEventFocus  *event)
 767 {
 768   /* We eat focus-in events and focus-out events, since they
 769    * can be generated by something like a keyboard grab on
 770    * a child of the plug.
 771    */
 772   return FALSE;
 773 }
 774
 775 static void
 776 gtk_plug_set_focus (GtkWindow *window,
 777                     GtkWidget *focus)
 778 {
 779   GtkPlug *plug = GTK_PLUG (window);
 780
 781   GTK_WINDOW_CLASS (gtk_plug_parent_class)->set_focus (window, focus);
 782
 783   /* Ask for focus from embedder
 784    */
 785
 786   if (focus && !window->has_toplevel_focus)
 787     _gtk_plug_windowing_set_focus (plug);
 788 }
 789
 790 static guint
 791 grabbed_key_hash (gconstpointer a)
 792 {
 793   const GrabbedKey *key = a;
 794   guint h;
 795
 796   h = key->accelerator_key << 16;
 797   h ^= key->accelerator_key >> 16;
 798   h ^= key->accelerator_mods;
 799
 800   return h;
 801 }
 802
 803 static gboolean
 804 grabbed_key_equal (gconstpointer a, gconstpointer b)
 805 {
 806   const GrabbedKey *keya = a;
 807   const GrabbedKey *keyb = b;
 808
 809   return (keya->accelerator_key == keyb->accelerator_key &&
 810           keya->accelerator_mods == keyb->accelerator_mods);
 811 }
 812
 813 static void
 814 add_grabbed_key (gpointer key, gpointer val, gpointer data)
 815 {
 816   GrabbedKey *grabbed_key = key;
 817   GtkPlug *plug = data;
 818
 819   if (!plug->grabbed_keys ||
 820       !g_hash_table_lookup (plug->grabbed_keys, grabbed_key))
 821     {
 822       _gtk_plug_windowing_add_grabbed_key (plug,
 823                                            grabbed_key->accelerator_key,
 824                                            grabbed_key->accelerator_mods);
 825     }
 826 }
 827
 828 static void
 829 add_grabbed_key_always (gpointer key,
 830                         gpointer val,
 831                         gpointer data)
 832 {
 833   GrabbedKey *grabbed_key = key;
 834   GtkPlug *plug = data;
 835
 836   _gtk_plug_windowing_add_grabbed_key (plug,
 837                                        grabbed_key->accelerator_key,
 838                                        grabbed_key->accelerator_mods);
 839 }
 840
 841 /**
 842  * _gtk_plug_add_all_grabbed_keys:
 843  *
 844  * @plug: a #GtkPlug
 845  *
 846  * Calls _gtk_plug_windowing_add_grabbed_key() on all the grabbed keys
 847  * in the @plug.
 848  */
 849 void
 850 _gtk_plug_add_all_grabbed_keys (GtkPlug *plug)
 851 {
 852   if (plug->grabbed_keys)
 853     g_hash_table_foreach (plug->grabbed_keys, add_grabbed_key_always, plug);
 854 }
 855
 856 static void
 857 remove_grabbed_key (gpointer key, gpointer val, gpointer data)
 858 {
 859   GrabbedKey *grabbed_key = key;
 860   GtkPlug *plug = data;
 861
 862   if (!plug->grabbed_keys ||
 863       !g_hash_table_lookup (plug->grabbed_keys, grabbed_key))
 864     {
 865       _gtk_plug_windowing_remove_grabbed_key (plug,
 866                                               grabbed_key->accelerator_key,
 867                                               grabbed_key->accelerator_mods);
 868     }
 869 }
 870
 871 static void
 872 keys_foreach (GtkWindow      *window,
 873               guint           keyval,
 874               GdkModifierType modifiers,
 875               gboolean        is_mnemonic,
 876               gpointer        data)
 877 {
 878   GHashTable *new_grabbed_keys = data;
 879   GrabbedKey *key = g_slice_new (GrabbedKey);
 880
 881   key->accelerator_key = keyval;
 882   key->accelerator_mods = modifiers;
 883
 884   g_hash_table_replace (new_grabbed_keys, key, key);
 885 }
 886
 887 static void
 888 grabbed_key_free (gpointer data)
 889 {
 890   g_slice_free (GrabbedKey, data);
 891 }
 892
 893 static void
 894 gtk_plug_keys_changed (GtkWindow *window)
 895 {
 896   GHashTable *new_grabbed_keys, *old_grabbed_keys;
 897   GtkPlug *plug = GTK_PLUG (window);
 898
 899   new_grabbed_keys = g_hash_table_new_full (grabbed_key_hash, grabbed_key_equal, (GDestroyNotify)grabbed_key_free, NULL);
 900   _gtk_window_keys_foreach (window, keys_foreach, new_grabbed_keys);
 901
 902   if (plug->socket_window)
 903     g_hash_table_foreach (new_grabbed_keys, add_grabbed_key, plug);
 904
 905   old_grabbed_keys = plug->grabbed_keys;
 906   plug->grabbed_keys = new_grabbed_keys;
 907
 908   if (old_grabbed_keys)
 909     {
 910       if (plug->socket_window)
 911         g_hash_table_foreach (old_grabbed_keys, remove_grabbed_key, plug);
 912       g_hash_table_destroy (old_grabbed_keys);
 913     }
 914 }
 915
 916 static gboolean
 917 gtk_plug_focus (GtkWidget        *widget,
 918                 GtkDirectionType  direction)
 919 {
 920   GtkBin *bin = GTK_BIN (widget);
 921   GtkPlug *plug = GTK_PLUG (widget);
 922   GtkWindow *window = GTK_WINDOW (widget);
 923   GtkContainer *container = GTK_CONTAINER (widget);
 924   GtkWidget *old_focus_child = container->focus_child;
 925   GtkWidget *parent;
 926
 927   /* We override GtkWindow's behavior, since we don't want wrapping here.
 928    */
 929   if (old_focus_child)
 930     {
 931       if (gtk_widget_child_focus (old_focus_child, direction))
 932         return TRUE;
 933
 934       if (window->focus_widget)
 935         {
 936           /* Wrapped off the end, clear the focus setting for the toplevel */
 937           parent = window->focus_widget->parent;
 938           while (parent)
 939             {
 940               gtk_container_set_focus_child (GTK_CONTAINER (parent), NULL);
 941               parent = GTK_WIDGET (parent)->parent;
 942             }
 943
 944           gtk_window_set_focus (GTK_WINDOW (container), NULL);
 945         }
 946     }
 947   else
 948     {
 949       /* Try to focus the first widget in the window */
 950       if (bin->child && gtk_widget_child_focus (bin->child, direction))
 951         return TRUE;
 952     }
 953
 954   if (!GTK_CONTAINER (window)->focus_child)
 955     _gtk_plug_windowing_focus_to_parent (plug, direction);
 956
 957   return FALSE;
 958 }
 959
 960 static void
 961 gtk_plug_check_resize (GtkContainer *container)
 962 {
 963   if (GTK_WIDGET_TOPLEVEL (container))
 964     GTK_CONTAINER_CLASS (gtk_plug_parent_class)->check_resize (container);
 965   else
 966     GTK_CONTAINER_CLASS (bin_class)->check_resize (container);
 967 }
 968
 969 /**
 970  * _gtk_plug_handle_modality_on:
 971  *
 972  * @plug: a #GtkPlug
 973  *
 974  * Called from the GtkPlug backend when the corresponding socket has
 975  * told the plug that it modality has toggled on.
 976  */
 977 void
 978 _gtk_plug_handle_modality_on (GtkPlug *plug)
 979 {
 980   if (!plug->modality_window)
 981     {
 982       plug->modality_window = gtk_window_new (GTK_WINDOW_POPUP);
 983       gtk_window_set_screen (GTK_WINDOW (plug->modality_window),
 984                              gtk_widget_get_screen (GTK_WIDGET (plug)));
 985       gtk_widget_realize (plug->modality_window);
 986       gtk_window_group_add_window (plug->modality_group, GTK_WINDOW (plug->modality_window));
 987       gtk_grab_add (plug->modality_window);
 988     }
 989 }
 990
 991 /**
 992  * _gtk_plug_handle_modality_off:
 993  *
 994  * @plug: a #GtkPlug
 995  *
 996  * Called from the GtkPlug backend when the corresponding socket has
 997  * told the plug that it modality has toggled off.
 998  */
 999 void
1000 _gtk_plug_handle_modality_off (GtkPlug *plug)
1001 {
1002   if (plug->modality_window)
1003     {
1004       gtk_widget_destroy (plug->modality_window);
1005       plug->modality_window = NULL;
1006     }
1007 }
1008
1009 /**
1010  * _gtk_plug_focus_first_last:
1011  *
1012  * @plug: a #GtkPlug
1013  * @direction: a direction
1014  *
1015  * Called from the GtkPlug backend when the corresponding socket has
1016  * told the plug that it has received the focus.
1017  */
1018 void
1019 _gtk_plug_focus_first_last (GtkPlug          *plug,
1020                             GtkDirectionType  direction)
1021 {
1022   GtkWindow *window = GTK_WINDOW (plug);
1023   GtkWidget *parent;
1024
1025   if (window->focus_widget)
1026     {
1027       parent = window->focus_widget->parent;
1028       while (parent)
1029         {
1030           gtk_container_set_focus_child (GTK_CONTAINER (parent), NULL);
1031           parent = GTK_WIDGET (parent)->parent;
1032         }
1033
1034       gtk_window_set_focus (GTK_WINDOW (plug), NULL);
1035     }
1036
1037   gtk_widget_child_focus (GTK_WIDGET (plug), direction);
1038 }
1039
1040 #define __GTK_PLUG_C__
1041 #include "gtkaliasdef.c"