Pileus Git - ~andy/gtk/blob - gtk/gtkdialog.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
  16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17  * Boston, MA 02111-1307, USA.
  18  */
  19
  20 /*
  21  * Modified by the GTK+ Team and others 1997-2000.  See the AUTHORS
  22  * file for a list of people on the GTK+ Team.  See the ChangeLog
  23  * files for a list of changes.  These files are distributed with
  24  * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
  25  */
  26
  27 #include <stdlib.h>
  28 #include <string.h>
  29 #include "config.h"
  30 #include "gtkbutton.h"
  31 #include "gtkdialog.h"
  32 #include "gtkhbbox.h"
  33 #include "gtklabel.h"
  34 #include "gtkhseparator.h"
  35 #include "gtkmarshalers.h"
  36 #include "gtkvbox.h"
  37 #include "gdkkeysyms.h"
  38 #include "gtkmain.h"
  39 #include "gtkintl.h"
  40 #include "gtkbindings.h"
  41 #include "gtkprivate.h"
  42 #include "gtkbuildable.h"
  43
  44
  45 struct _GtkDialogPriv
  46 {
  47   GtkWidget *vbox;
  48   GtkWidget *action_area;
  49
  50   GtkWidget *separator;
  51
  52   guint ignore_separator : 1;
  53 };
  54
  55 typedef struct _ResponseData ResponseData;
  56
  57 struct _ResponseData
  58 {
  59   gint response_id;
  60 };
  61
  62 static void      gtk_dialog_add_buttons_valist   (GtkDialog    *dialog,
  63                                                   const gchar  *first_button_text,
  64                                                   va_list       args);
  65
  66 static gboolean  gtk_dialog_delete_event_handler (GtkWidget    *widget,
  67                                                   GdkEventAny  *event,
  68                                                   gpointer      user_data);
  69
  70 static void      gtk_dialog_set_property         (GObject      *object,
  71                                                   guint         prop_id,
  72                                                   const GValue *value,
  73                                                   GParamSpec   *pspec);
  74 static void      gtk_dialog_get_property         (GObject      *object,
  75                                                   guint         prop_id,
  76                                                   GValue       *value,
  77                                                   GParamSpec   *pspec);
  78 static void      gtk_dialog_style_set            (GtkWidget    *widget,
  79                                                   GtkStyle     *prev_style);
  80 static void      gtk_dialog_map                  (GtkWidget    *widget);
  81
  82 static void      gtk_dialog_close                (GtkDialog    *dialog);
  83
  84 static ResponseData * get_response_data          (GtkWidget    *widget,
  85                                                   gboolean      create);
  86
  87 static void      gtk_dialog_buildable_interface_init     (GtkBuildableIface *iface);
  88 static GObject * gtk_dialog_buildable_get_internal_child (GtkBuildable  *buildable,
  89                                                           GtkBuilder    *builder,
  90                                                           const gchar   *childname);
  91 static gboolean  gtk_dialog_buildable_custom_tag_start   (GtkBuildable  *buildable,
  92                                                           GtkBuilder    *builder,
  93                                                           GObject       *child,
  94                                                           const gchar   *tagname,
  95                                                           GMarkupParser *parser,
  96                                                           gpointer      *data);
  97 static void      gtk_dialog_buildable_custom_finished    (GtkBuildable  *buildable,
  98                                                           GtkBuilder    *builder,
  99                                                           GObject       *child,
 100                                                           const gchar   *tagname,
 101                                                           gpointer       user_data);
 102
 103
 104 enum {
 105   PROP_0,
 106   PROP_HAS_SEPARATOR
 107 };
 108
 109 enum {
 110   RESPONSE,
 111   CLOSE,
 112   LAST_SIGNAL
 113 };
 114
 115 static guint dialog_signals[LAST_SIGNAL];
 116
 117 G_DEFINE_TYPE_WITH_CODE (GtkDialog, gtk_dialog, GTK_TYPE_WINDOW,
 118                          G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
 119                                                 gtk_dialog_buildable_interface_init))
 120
 121 static void
 122 gtk_dialog_class_init (GtkDialogClass *class)
 123 {
 124   GObjectClass *gobject_class;
 125   GtkWidgetClass *widget_class;
 126   GtkBindingSet *binding_set;
 127
 128   gobject_class = G_OBJECT_CLASS (class);
 129   widget_class = GTK_WIDGET_CLASS (class);
 130
 131   gobject_class->set_property = gtk_dialog_set_property;
 132   gobject_class->get_property = gtk_dialog_get_property;
 133
 134   widget_class->map = gtk_dialog_map;
 135   widget_class->style_set = gtk_dialog_style_set;
 136
 137   class->close = gtk_dialog_close;
 138
 139   g_type_class_add_private (gobject_class, sizeof (GtkDialogPriv));
 140
 141   /**
 142    * GtkDialog:has-separator:
 143    *
 144    * When %TRUE, the dialog has a separator bar above its buttons.
 145    */
 146   g_object_class_install_property (gobject_class,
 147                                    PROP_HAS_SEPARATOR,
 148                                    g_param_spec_boolean ("has-separator",
 149                                                          P_("Has separator"),
 150                                                          P_("The dialog has a separator bar above its buttons"),
 151                                                          TRUE,
 152                                                          GTK_PARAM_READWRITE));
 153
 154   /**
 155    * GtkDialog::response:
 156    * @dialog: the object on which the signal is emitted
 157    * @response_id: the response ID
 158    *
 159    * Emitted when an action widget is clicked, the dialog receives a
 160    * delete event, or the application programmer calls gtk_dialog_response().
 161    * On a delete event, the response ID is #GTK_RESPONSE_DELETE_EVENT.
 162    * Otherwise, it depends on which action widget was clicked.
 163    */
 164   dialog_signals[RESPONSE] =
 165     g_signal_new (I_("response"),
 166                   G_OBJECT_CLASS_TYPE (class),
 167                   G_SIGNAL_RUN_LAST,
 168                   G_STRUCT_OFFSET (GtkDialogClass, response),
 169                   NULL, NULL,
 170                   _gtk_marshal_VOID__INT,
 171                   G_TYPE_NONE, 1,
 172                   G_TYPE_INT);
 173
 174   /**
 175    * GtkDialog::close:
 176    *
 177    * The ::close signal is a
 178    * <link linkend="keybinding-signals">keybinding signal</link>
 179    * which gets emitted when the user uses a keybinding to close
 180    * the dialog.
 181    *
 182    * The default binding for this signal is the Escape key.
 183    */
 184   dialog_signals[CLOSE] =
 185     g_signal_new (I_("close"),
 186                   G_OBJECT_CLASS_TYPE (class),
 187                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
 188                   G_STRUCT_OFFSET (GtkDialogClass, close),
 189                   NULL, NULL,
 190                   _gtk_marshal_VOID__VOID,
 191                   G_TYPE_NONE, 0);
 192
 193   gtk_widget_class_install_style_property (widget_class,
 194                                            g_param_spec_int ("content-area-border",
 195                                                              P_("Content area border"),
 196                                                              P_("Width of border around the main dialog area"),
 197                                                              0,
 198                                                              G_MAXINT,
 199                                                              2,
 200                                                              GTK_PARAM_READABLE));
 201   /**
 202    * GtkDialog:content-area-spacing:
 203    *
 204    * The default spacing used between elements of the
 205    * content area of the dialog, as returned by
 206    * gtk_dialog_get_content_area(), unless gtk_box_set_spacing()
 207    * was called on that widget directly.
 208    *
 209    * Since: 2.16
 210    */
 211   gtk_widget_class_install_style_property (widget_class,
 212                                            g_param_spec_int ("content-area-spacing",
 213                                                              P_("Content area spacing"),
 214                                                              P_("Spacing between elements of the main dialog area"),
 215                                                              0,
 216                                                              G_MAXINT,
 217                                                              0,
 218                                                              GTK_PARAM_READABLE));
 219   gtk_widget_class_install_style_property (widget_class,
 220                                            g_param_spec_int ("button-spacing",
 221                                                              P_("Button spacing"),
 222                                                              P_("Spacing between buttons"),
 223                                                              0,
 224                                                              G_MAXINT,
 225                                                              6,
 226                                                              GTK_PARAM_READABLE));
 227
 228   gtk_widget_class_install_style_property (widget_class,
 229                                            g_param_spec_int ("action-area-border",
 230                                                              P_("Action area border"),
 231                                                              P_("Width of border around the button area at the bottom of the dialog"),
 232                                                              0,
 233                                                              G_MAXINT,
 234                                                              5,
 235                                                              GTK_PARAM_READABLE));
 236
 237   binding_set = gtk_binding_set_by_class (class);
 238
 239   gtk_binding_entry_add_signal (binding_set, GDK_Escape, 0, "close", 0);
 240 }
 241
 242 static void
 243 update_spacings (GtkDialog *dialog)
 244 {
 245   GtkDialogPriv *priv = dialog->priv;
 246   gint content_area_border;
 247   gint content_area_spacing;
 248   gint button_spacing;
 249   gint action_area_border;
 250
 251   gtk_widget_style_get (GTK_WIDGET (dialog),
 252                         "content-area-border", &content_area_border,
 253                         "content-area-spacing", &content_area_spacing,
 254                         "button-spacing", &button_spacing,
 255                         "action-area-border", &action_area_border,
 256                         NULL);
 257
 258   gtk_container_set_border_width (GTK_CONTAINER (priv->vbox),
 259                                   content_area_border);
 260   if (!_gtk_box_get_spacing_set (GTK_BOX (priv->vbox)))
 261     {
 262       gtk_box_set_spacing (GTK_BOX (priv->vbox), content_area_spacing);
 263       _gtk_box_set_spacing_set (GTK_BOX (priv->vbox), FALSE);
 264     }
 265   gtk_box_set_spacing (GTK_BOX (priv->action_area),
 266                        button_spacing);
 267   gtk_container_set_border_width (GTK_CONTAINER (priv->action_area),
 268                                   action_area_border);
 269 }
 270
 271 static void
 272 gtk_dialog_init (GtkDialog *dialog)
 273 {
 274   GtkDialogPriv *priv;
 275
 276   dialog->priv = G_TYPE_INSTANCE_GET_PRIVATE (dialog,
 277                                               GTK_TYPE_DIALOG,
 278                                               GtkDialogPriv);
 279   priv = dialog->priv;
 280
 281   priv->ignore_separator = FALSE;
 282
 283   /* To avoid breaking old code that prevents destroy on delete event
 284    * by connecting a handler, we have to have the FIRST signal
 285    * connection on the dialog.
 286    */
 287   g_signal_connect (dialog,
 288                     "delete-event",
 289                     G_CALLBACK (gtk_dialog_delete_event_handler),
 290                     NULL);
 291
 292   priv->vbox = gtk_vbox_new (FALSE, 0);
 293
 294   gtk_container_add (GTK_CONTAINER (dialog), priv->vbox);
 295   gtk_widget_show (priv->vbox);
 296
 297   priv->action_area = gtk_hbutton_box_new ();
 298
 299   gtk_button_box_set_layout (GTK_BUTTON_BOX (priv->action_area),
 300                              GTK_BUTTONBOX_END);
 301
 302   gtk_box_pack_end (GTK_BOX (priv->vbox), priv->action_area,
 303                     FALSE, TRUE, 0);
 304   gtk_widget_show (priv->action_area);
 305
 306   priv->separator = gtk_hseparator_new ();
 307   gtk_box_pack_end (GTK_BOX (priv->vbox), priv->separator, FALSE, TRUE, 0);
 308   gtk_widget_show (priv->separator);
 309
 310   gtk_window_set_type_hint (GTK_WINDOW (dialog),
 311                             GDK_WINDOW_TYPE_HINT_DIALOG);
 312   gtk_window_set_position (GTK_WINDOW (dialog), GTK_WIN_POS_CENTER_ON_PARENT);
 313 }
 314
 315 static GtkBuildableIface *parent_buildable_iface;
 316
 317 static void
 318 gtk_dialog_buildable_interface_init (GtkBuildableIface *iface)
 319 {
 320   parent_buildable_iface = g_type_interface_peek_parent (iface);
 321   iface->get_internal_child = gtk_dialog_buildable_get_internal_child;
 322   iface->custom_tag_start = gtk_dialog_buildable_custom_tag_start;
 323   iface->custom_finished = gtk_dialog_buildable_custom_finished;
 324 }
 325
 326 static GObject *
 327 gtk_dialog_buildable_get_internal_child (GtkBuildable *buildable,
 328                                          GtkBuilder   *builder,
 329                                          const gchar  *childname)
 330 {
 331   GtkDialogPriv *priv = GTK_DIALOG (buildable)->priv;
 332
 333   if (strcmp (childname, "vbox") == 0)
 334     return G_OBJECT (priv->vbox);
 335   else if (strcmp (childname, "action_area") == 0)
 336     return G_OBJECT (priv->action_area);
 337
 338   return parent_buildable_iface->get_internal_child (buildable,
 339                                                      builder,
 340                                                      childname);
 341 }
 342
 343 static void
 344 gtk_dialog_set_property (GObject      *object,
 345                          guint         prop_id,
 346                          const GValue *value,
 347                          GParamSpec   *pspec)
 348 {
 349   GtkDialog *dialog;
 350
 351   dialog = GTK_DIALOG (object);
 352
 353   switch (prop_id)
 354     {
 355     case PROP_HAS_SEPARATOR:
 356       gtk_dialog_set_has_separator (dialog, g_value_get_boolean (value));
 357       break;
 358
 359     default:
 360       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 361       break;
 362     }
 363 }
 364
 365 static void
 366 gtk_dialog_get_property (GObject     *object,
 367                          guint        prop_id,
 368                          GValue      *value,
 369                          GParamSpec  *pspec)
 370 {
 371   GtkDialog *dialog = GTK_DIALOG (object);
 372   GtkDialogPriv *priv = dialog->priv;
 373
 374   switch (prop_id)
 375     {
 376     case PROP_HAS_SEPARATOR:
 377       g_value_set_boolean (value, priv->separator != NULL);
 378       break;
 379
 380     default:
 381       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 382       break;
 383     }
 384 }
 385
 386 static gboolean
 387 gtk_dialog_delete_event_handler (GtkWidget   *widget,
 388                                  GdkEventAny *event,
 389                                  gpointer     user_data)
 390 {
 391   /* emit response signal */
 392   gtk_dialog_response (GTK_DIALOG (widget), GTK_RESPONSE_DELETE_EVENT);
 393
 394   /* Do the destroy by default */
 395   return FALSE;
 396 }
 397
 398 /* A far too tricky heuristic for getting the right initial
 399  * focus widget if none was set. What we do is we focus the first
 400  * widget in the tab chain, but if this results in the focus
 401  * ending up on one of the response widgets _other_ than the
 402  * default response, we focus the default response instead.
 403  *
 404  * Additionally, skip selectable labels when looking for the
 405  * right initial focus widget.
 406  */
 407 static void
 408 gtk_dialog_map (GtkWidget *widget)
 409 {
 410   GtkWidget *default_widget, *focus;
 411   GtkWindow *window = GTK_WINDOW (widget);
 412   GtkDialog *dialog = GTK_DIALOG (widget);
 413   GtkDialogPriv *priv = dialog->priv;
 414
 415   GTK_WIDGET_CLASS (gtk_dialog_parent_class)->map (widget);
 416
 417   focus = gtk_window_get_focus (window);
 418   if (!focus)
 419     {
 420       GList *children, *tmp_list;
 421       GtkWidget *first_focus = NULL;
 422
 423       do
 424         {
 425           g_signal_emit_by_name (window, "move_focus", GTK_DIR_TAB_FORWARD);
 426
 427           focus = gtk_window_get_focus (window);
 428           if (first_focus == NULL)
 429             first_focus = focus;
 430           else if (first_focus == focus)
 431             break;
 432           if (!GTK_IS_LABEL (focus))
 433             break;
 434           if (!gtk_label_get_current_uri (GTK_LABEL (focus)))
 435             gtk_label_select_region (GTK_LABEL (focus), 0, 0);
 436         }
 437       while (TRUE);
 438
 439       tmp_list = children = gtk_container_get_children (GTK_CONTAINER (priv->action_area));
 440
 441       while (tmp_list)
 442         {
 443           GtkWidget *child = tmp_list->data;
 444
 445           default_widget = gtk_window_get_default_widget (window);
 446           if ((focus == NULL || child == focus) &&
 447               child != default_widget &&
 448               default_widget)
 449             {
 450               gtk_widget_grab_focus (default_widget);
 451               break;
 452             }
 453
 454           tmp_list = tmp_list->next;
 455         }
 456
 457       g_list_free (children);
 458     }
 459 }
 460
 461 static void
 462 gtk_dialog_style_set (GtkWidget *widget,
 463                       GtkStyle  *prev_style)
 464 {
 465   update_spacings (GTK_DIALOG (widget));
 466 }
 467
 468 static GtkWidget *
 469 dialog_find_button (GtkDialog *dialog,
 470                     gint       response_id)
 471 {
 472   GtkDialogPriv *priv = dialog->priv;
 473   GtkWidget *child = NULL;
 474   GList *children, *tmp_list;
 475
 476   children = gtk_container_get_children (GTK_CONTAINER (priv->action_area));
 477
 478   for (tmp_list = children; tmp_list; tmp_list = tmp_list->next)
 479     {
 480       ResponseData *rd = get_response_data (tmp_list->data, FALSE);
 481
 482       if (rd && rd->response_id == response_id)
 483         {
 484           child = tmp_list->data;
 485           break;
 486         }
 487     }
 488
 489   g_list_free (children);
 490
 491   return child;
 492 }
 493
 494 static void
 495 gtk_dialog_close (GtkDialog *dialog)
 496 {
 497   /* Synthesize delete_event to close dialog. */
 498
 499   GtkWidget *widget = GTK_WIDGET (dialog);
 500   GdkEvent *event;
 501
 502   event = gdk_event_new (GDK_DELETE);
 503
 504   event->any.window = g_object_ref (gtk_widget_get_window (widget));
 505   event->any.send_event = TRUE;
 506
 507   gtk_main_do_event (event);
 508   gdk_event_free (event);
 509 }
 510
 511 GtkWidget*
 512 gtk_dialog_new (void)
 513 {
 514   return g_object_new (GTK_TYPE_DIALOG, NULL);
 515 }
 516
 517 static GtkWidget*
 518 gtk_dialog_new_empty (const gchar     *title,
 519                       GtkWindow       *parent,
 520                       GtkDialogFlags   flags)
 521 {
 522   GtkDialog *dialog;
 523
 524   dialog = g_object_new (GTK_TYPE_DIALOG, NULL);
 525
 526   if (title)
 527     gtk_window_set_title (GTK_WINDOW (dialog), title);
 528
 529   if (parent)
 530     gtk_window_set_transient_for (GTK_WINDOW (dialog), parent);
 531
 532   if (flags & GTK_DIALOG_MODAL)
 533     gtk_window_set_modal (GTK_WINDOW (dialog), TRUE);
 534
 535   if (flags & GTK_DIALOG_DESTROY_WITH_PARENT)
 536     gtk_window_set_destroy_with_parent (GTK_WINDOW (dialog), TRUE);
 537
 538   if (flags & GTK_DIALOG_NO_SEPARATOR)
 539     gtk_dialog_set_has_separator (dialog, FALSE);
 540
 541   return GTK_WIDGET (dialog);
 542 }
 543
 544 /**
 545  * gtk_dialog_new_with_buttons:
 546  * @title: (allow-none): Title of the dialog, or %NULL
 547  * @parent: (allow-none): Transient parent of the dialog, or %NULL
 548  * @flags: from #GtkDialogFlags
 549  * @first_button_text: (allow-none): stock ID or text to go in first button, or %NULL
 550  * @Varargs: response ID for first button, then additional buttons, ending with %NULL
 551  *
 552  * Creates a new #GtkDialog with title @title (or %NULL for the default
 553  * title; see gtk_window_set_title()) and transient parent @parent (or
 554  * %NULL for none; see gtk_window_set_transient_for()). The @flags
 555  * argument can be used to make the dialog modal (#GTK_DIALOG_MODAL)
 556  * and/or to have it destroyed along with its transient parent
 557  * (#GTK_DIALOG_DESTROY_WITH_PARENT). After @flags, button
 558  * text/response ID pairs should be listed, with a %NULL pointer ending
 559  * the list. Button text can be either a stock ID such as
 560  * #GTK_STOCK_OK, or some arbitrary text. A response ID can be
 561  * any positive number, or one of the values in the #GtkResponseType
 562  * enumeration. If the user clicks one of these dialog buttons,
 563  * #GtkDialog will emit the #GtkDialog::response signal with the corresponding
 564  * response ID. If a #GtkDialog receives the #GtkWidget::delete-event signal,
 565  * it will emit ::response with a response ID of #GTK_RESPONSE_DELETE_EVENT.
 566  * However, destroying a dialog does not emit the ::response signal;
 567  * so be careful relying on ::response when using the
 568  * #GTK_DIALOG_DESTROY_WITH_PARENT flag. Buttons are from left to right,
 569  * so the first button in the list will be the leftmost button in the dialog.
 570  *
 571  * Here's a simple example:
 572  * |[
 573  *  GtkWidget *dialog = gtk_dialog_new_with_buttons ("My dialog",
 574  *                                                   main_app_window,
 575  *                                                   GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,
 576  *                                                   GTK_STOCK_OK,
 577  *                                                   GTK_RESPONSE_ACCEPT,
 578  *                                                   GTK_STOCK_CANCEL,
 579  *                                                   GTK_RESPONSE_REJECT,
 580  *                                                   NULL);
 581  * ]|
 582  *
 583  * Return value: a new #GtkDialog
 584  **/
 585 GtkWidget*
 586 gtk_dialog_new_with_buttons (const gchar    *title,
 587                              GtkWindow      *parent,
 588                              GtkDialogFlags  flags,
 589                              const gchar    *first_button_text,
 590                              ...)
 591 {
 592   GtkDialog *dialog;
 593   va_list args;
 594
 595   dialog = GTK_DIALOG (gtk_dialog_new_empty (title, parent, flags));
 596
 597   va_start (args, first_button_text);
 598
 599   gtk_dialog_add_buttons_valist (dialog,
 600                                  first_button_text,
 601                                  args);
 602
 603   va_end (args);
 604
 605   return GTK_WIDGET (dialog);
 606 }
 607
 608 static void
 609 response_data_free (gpointer data)
 610 {
 611   g_slice_free (ResponseData, data);
 612 }
 613
 614 static ResponseData*
 615 get_response_data (GtkWidget *widget,
 616                    gboolean   create)
 617 {
 618   ResponseData *ad = g_object_get_data (G_OBJECT (widget),
 619                                         "gtk-dialog-response-data");
 620
 621   if (ad == NULL && create)
 622     {
 623       ad = g_slice_new (ResponseData);
 624
 625       g_object_set_data_full (G_OBJECT (widget),
 626                               I_("gtk-dialog-response-data"),
 627                               ad,
 628                               response_data_free);
 629     }
 630
 631   return ad;
 632 }
 633
 634 static void
 635 action_widget_activated (GtkWidget *widget, GtkDialog *dialog)
 636 {
 637   gint response_id;
 638
 639   response_id = gtk_dialog_get_response_for_widget (dialog, widget);
 640
 641   gtk_dialog_response (dialog, response_id);
 642 }
 643
 644 /**
 645  * gtk_dialog_add_action_widget:
 646  * @dialog: a #GtkDialog
 647  * @child: an activatable widget
 648  * @response_id: response ID for @child
 649  *
 650  * Adds an activatable widget to the action area of a #GtkDialog,
 651  * connecting a signal handler that will emit the #GtkDialog::response
 652  * signal on the dialog when the widget is activated. The widget is
 653  * appended to the end of the dialog's action area. If you want to add a
 654  * non-activatable widget, simply pack it into the @action_area field
 655  * of the #GtkDialog struct.
 656  **/
 657 void
 658 gtk_dialog_add_action_widget (GtkDialog *dialog,
 659                               GtkWidget *child,
 660                               gint       response_id)
 661 {
 662   GtkDialogPriv *priv;
 663   ResponseData *ad;
 664   guint signal_id;
 665
 666   g_return_if_fail (GTK_IS_DIALOG (dialog));
 667   g_return_if_fail (GTK_IS_WIDGET (child));
 668
 669   priv = dialog->priv;
 670
 671   ad = get_response_data (child, TRUE);
 672
 673   ad->response_id = response_id;
 674
 675   if (GTK_IS_BUTTON (child))
 676     signal_id = g_signal_lookup ("clicked", GTK_TYPE_BUTTON);
 677   else
 678     signal_id = GTK_WIDGET_GET_CLASS (child)->activate_signal;
 679
 680   if (signal_id)
 681     {
 682       GClosure *closure;
 683
 684       closure = g_cclosure_new_object (G_CALLBACK (action_widget_activated),
 685                                        G_OBJECT (dialog));
 686       g_signal_connect_closure_by_id (child,
 687                                       signal_id,
 688                                       0,
 689                                       closure,
 690                                       FALSE);
 691     }
 692   else
 693     g_warning ("Only 'activatable' widgets can be packed into the action area of a GtkDialog");
 694
 695   gtk_box_pack_end (GTK_BOX (priv->action_area),
 696                     child,
 697                     FALSE, TRUE, 0);
 698
 699   if (response_id == GTK_RESPONSE_HELP)
 700     gtk_button_box_set_child_secondary (GTK_BUTTON_BOX (priv->action_area), child, TRUE);
 701 }
 702
 703 /**
 704  * gtk_dialog_add_button:
 705  * @dialog: a #GtkDialog
 706  * @button_text: text of button, or stock ID
 707  * @response_id: response ID for the button
 708  *
 709  * Adds a button with the given text (or a stock button, if @button_text is a
 710  * stock ID) and sets things up so that clicking the button will emit the
 711  * #GtkDialog::response signal with the given @response_id. The button is
 712  * appended to the end of the dialog's action area. The button widget is
 713  * returned, but usually you don't need it.
 714  *
 715  * Return value: the button widget that was added
 716  **/
 717 GtkWidget*
 718 gtk_dialog_add_button (GtkDialog   *dialog,
 719                        const gchar *button_text,
 720                        gint         response_id)
 721 {
 722   GtkWidget *button;
 723
 724   g_return_val_if_fail (GTK_IS_DIALOG (dialog), NULL);
 725   g_return_val_if_fail (button_text != NULL, NULL);
 726
 727   button = gtk_button_new_from_stock (button_text);
 728
 729   gtk_widget_set_can_default (button, TRUE);
 730
 731   gtk_widget_show (button);
 732
 733   gtk_dialog_add_action_widget (dialog,
 734                                 button,
 735                                 response_id);
 736
 737   return button;
 738 }
 739
 740 static void
 741 gtk_dialog_add_buttons_valist (GtkDialog      *dialog,
 742                                const gchar    *first_button_text,
 743                                va_list         args)
 744 {
 745   const gchar* text;
 746   gint response_id;
 747
 748   g_return_if_fail (GTK_IS_DIALOG (dialog));
 749
 750   if (first_button_text == NULL)
 751     return;
 752
 753   text = first_button_text;
 754   response_id = va_arg (args, gint);
 755
 756   while (text != NULL)
 757     {
 758       gtk_dialog_add_button (dialog, text, response_id);
 759
 760       text = va_arg (args, gchar*);
 761       if (text == NULL)
 762         break;
 763       response_id = va_arg (args, int);
 764     }
 765 }
 766
 767 /**
 768  * gtk_dialog_add_buttons:
 769  * @dialog: a #GtkDialog
 770  * @first_button_text: button text or stock ID
 771  * @Varargs: response ID for first button, then more text-response_id pairs
 772  *
 773  * Adds more buttons, same as calling gtk_dialog_add_button()
 774  * repeatedly.  The variable argument list should be %NULL-terminated
 775  * as with gtk_dialog_new_with_buttons(). Each button must have both
 776  * text and response ID.
 777  **/
 778 void
 779 gtk_dialog_add_buttons (GtkDialog   *dialog,
 780                         const gchar *first_button_text,
 781                         ...)
 782 {
 783   va_list args;
 784
 785   va_start (args, first_button_text);
 786
 787   gtk_dialog_add_buttons_valist (dialog,
 788                                  first_button_text,
 789                                  args);
 790
 791   va_end (args);
 792 }
 793
 794 /**
 795  * gtk_dialog_set_response_sensitive:
 796  * @dialog: a #GtkDialog
 797  * @response_id: a response ID
 798  * @setting: %TRUE for sensitive
 799  *
 800  * Calls <literal>gtk_widget_set_sensitive (widget, @setting)</literal>
 801  * for each widget in the dialog's action area with the given @response_id.
 802  * A convenient way to sensitize/desensitize dialog buttons.
 803  **/
 804 void
 805 gtk_dialog_set_response_sensitive (GtkDialog *dialog,
 806                                    gint       response_id,
 807                                    gboolean   setting)
 808 {
 809   GtkDialogPriv *priv;
 810   GList *children;
 811   GList *tmp_list;
 812
 813   g_return_if_fail (GTK_IS_DIALOG (dialog));
 814
 815   priv = dialog->priv;
 816
 817   children = gtk_container_get_children (GTK_CONTAINER (priv->action_area));
 818
 819   tmp_list = children;
 820   while (tmp_list != NULL)
 821     {
 822       GtkWidget *widget = tmp_list->data;
 823       ResponseData *rd = get_response_data (widget, FALSE);
 824
 825       if (rd && rd->response_id == response_id)
 826         gtk_widget_set_sensitive (widget, setting);
 827
 828       tmp_list = g_list_next (tmp_list);
 829     }
 830
 831   g_list_free (children);
 832 }
 833
 834 /**
 835  * gtk_dialog_set_default_response:
 836  * @dialog: a #GtkDialog
 837  * @response_id: a response ID
 838  *
 839  * Sets the last widget in the dialog's action area with the given @response_id
 840  * as the default widget for the dialog. Pressing "Enter" normally activates
 841  * the default widget.
 842  **/
 843 void
 844 gtk_dialog_set_default_response (GtkDialog *dialog,
 845                                  gint       response_id)
 846 {
 847   GtkDialogPriv *priv;
 848   GList *children;
 849   GList *tmp_list;
 850
 851   g_return_if_fail (GTK_IS_DIALOG (dialog));
 852
 853   priv = dialog->priv;
 854
 855   children = gtk_container_get_children (GTK_CONTAINER (priv->action_area));
 856
 857   tmp_list = children;
 858   while (tmp_list != NULL)
 859     {
 860       GtkWidget *widget = tmp_list->data;
 861       ResponseData *rd = get_response_data (widget, FALSE);
 862
 863       if (rd && rd->response_id == response_id)
 864         gtk_widget_grab_default (widget);
 865
 866       tmp_list = g_list_next (tmp_list);
 867     }
 868
 869   g_list_free (children);
 870 }
 871
 872 /**
 873  * gtk_dialog_set_has_separator:
 874  * @dialog: a #GtkDialog
 875  * @setting: %TRUE to have a separator
 876  *
 877  * Sets whether the dialog has a separator above the buttons.
 878  * %TRUE by default.
 879  **/
 880 void
 881 gtk_dialog_set_has_separator (GtkDialog *dialog,
 882                               gboolean   setting)
 883 {
 884   GtkDialogPriv *priv;
 885
 886   g_return_if_fail (GTK_IS_DIALOG (dialog));
 887
 888   priv = dialog->priv;
 889
 890   /* this might fail if we get called before _init() somehow */
 891   g_assert (priv->vbox != NULL);
 892
 893   if (priv->ignore_separator)
 894     {
 895       g_warning ("Ignoring the separator setting");
 896       return;
 897     }
 898
 899   if (setting && priv->separator == NULL)
 900     {
 901       priv->separator = gtk_hseparator_new ();
 902       gtk_box_pack_end (GTK_BOX (priv->vbox), priv->separator, FALSE, TRUE, 0);
 903
 904       /* The app programmer could screw this up, but, their own fault.
 905        * Moves the separator just above the action area.
 906        */
 907       gtk_box_reorder_child (GTK_BOX (priv->vbox), priv->separator, 1);
 908       gtk_widget_show (priv->separator);
 909     }
 910   else if (!setting && priv->separator != NULL)
 911     {
 912       gtk_widget_destroy (priv->separator);
 913       priv->separator = NULL;
 914     }
 915
 916   g_object_notify (G_OBJECT (dialog), "has-separator");
 917 }
 918
 919 /**
 920  * gtk_dialog_get_has_separator:
 921  * @dialog: a #GtkDialog
 922  *
 923  * Accessor for whether the dialog has a separator.
 924  *
 925  * Return value: %TRUE if the dialog has a separator
 926  **/
 927 gboolean
 928 gtk_dialog_get_has_separator (GtkDialog *dialog)
 929 {
 930   g_return_val_if_fail (GTK_IS_DIALOG (dialog), FALSE);
 931
 932   return dialog->priv->separator != NULL;
 933 }
 934
 935 /**
 936  * gtk_dialog_response:
 937  * @dialog: a #GtkDialog
 938  * @response_id: response ID
 939  *
 940  * Emits the #GtkDialog::response signal with the given response ID.
 941  * Used to indicate that the user has responded to the dialog in some way;
 942  * typically either you or gtk_dialog_run() will be monitoring the
 943  * ::response signal and take appropriate action.
 944  **/
 945 void
 946 gtk_dialog_response (GtkDialog *dialog,
 947                      gint       response_id)
 948 {
 949   g_return_if_fail (GTK_IS_DIALOG (dialog));
 950
 951   g_signal_emit (dialog,
 952                  dialog_signals[RESPONSE],
 953                  0,
 954                  response_id);
 955 }
 956
 957 typedef struct
 958 {
 959   GtkDialog *dialog;
 960   gint response_id;
 961   GMainLoop *loop;
 962   gboolean destroyed;
 963 } RunInfo;
 964
 965 static void
 966 shutdown_loop (RunInfo *ri)
 967 {
 968   if (g_main_loop_is_running (ri->loop))
 969     g_main_loop_quit (ri->loop);
 970 }
 971
 972 static void
 973 run_unmap_handler (GtkDialog *dialog, gpointer data)
 974 {
 975   RunInfo *ri = data;
 976
 977   shutdown_loop (ri);
 978 }
 979
 980 static void
 981 run_response_handler (GtkDialog *dialog,
 982                       gint response_id,
 983                       gpointer data)
 984 {
 985   RunInfo *ri;
 986
 987   ri = data;
 988
 989   ri->response_id = response_id;
 990
 991   shutdown_loop (ri);
 992 }
 993
 994 static gint
 995 run_delete_handler (GtkDialog *dialog,
 996                     GdkEventAny *event,
 997                     gpointer data)
 998 {
 999   RunInfo *ri = data;
1000
1001   shutdown_loop (ri);
1002
1003   return TRUE; /* Do not destroy */
1004 }
1005
1006 static void
1007 run_destroy_handler (GtkDialog *dialog, gpointer data)
1008 {
1009   RunInfo *ri = data;
1010
1011   /* shutdown_loop will be called by run_unmap_handler */
1012
1013   ri->destroyed = TRUE;
1014 }
1015
1016 /**
1017  * gtk_dialog_run:
1018  * @dialog: a #GtkDialog
1019  *
1020  * Blocks in a recursive main loop until the @dialog either emits the
1021  * #GtkDialog::response signal, or is destroyed. If the dialog is
1022  * destroyed during the call to gtk_dialog_run(), gtk_dialog_run() returns
1023  * #GTK_RESPONSE_NONE. Otherwise, it returns the response ID from the
1024  * ::response signal emission.
1025  *
1026  * Before entering the recursive main loop, gtk_dialog_run() calls
1027  * gtk_widget_show() on the dialog for you. Note that you still
1028  * need to show any children of the dialog yourself.
1029  *
1030  * During gtk_dialog_run(), the default behavior of #GtkWidget::delete-event
1031  * is disabled; if the dialog receives ::delete_event, it will not be
1032  * destroyed as windows usually are, and gtk_dialog_run() will return
1033  * #GTK_RESPONSE_DELETE_EVENT. Also, during gtk_dialog_run() the dialog
1034  * will be modal. You can force gtk_dialog_run() to return at any time by
1035  * calling gtk_dialog_response() to emit the ::response signal. Destroying
1036  * the dialog during gtk_dialog_run() is a very bad idea, because your
1037  * post-run code won't know whether the dialog was destroyed or not.
1038  *
1039  * After gtk_dialog_run() returns, you are responsible for hiding or
1040  * destroying the dialog if you wish to do so.
1041  *
1042  * Typical usage of this function might be:
1043  * |[
1044  *   gint result = gtk_dialog_run (GTK_DIALOG (dialog));
1045  *   switch (result)
1046  *     {
1047  *       case GTK_RESPONSE_ACCEPT:
1048  *          do_application_specific_something ();
1049  *          break;
1050  *       default:
1051  *          do_nothing_since_dialog_was_cancelled ();
1052  *          break;
1053  *     }
1054  *   gtk_widget_destroy (dialog);
1055  * ]|
1056  *
1057  * Note that even though the recursive main loop gives the effect of a
1058  * modal dialog (it prevents the user from interacting with other
1059  * windows in the same window group while the dialog is run), callbacks
1060  * such as timeouts, IO channel watches, DND drops, etc, <emphasis>will</emphasis>
1061  * be triggered during a gtk_dialog_run() call.
1062  *
1063  * Return value: response ID
1064  **/
1065 gint
1066 gtk_dialog_run (GtkDialog *dialog)
1067 {
1068   RunInfo ri = { NULL, GTK_RESPONSE_NONE, NULL, FALSE };
1069   gboolean was_modal;
1070   gulong response_handler;
1071   gulong unmap_handler;
1072   gulong destroy_handler;
1073   gulong delete_handler;
1074
1075   g_return_val_if_fail (GTK_IS_DIALOG (dialog), -1);
1076
1077   g_object_ref (dialog);
1078
1079   was_modal = gtk_window_get_modal (GTK_WINDOW (dialog));
1080   if (!was_modal)
1081     gtk_window_set_modal (GTK_WINDOW (dialog), TRUE);
1082
1083   if (!gtk_widget_get_visible (GTK_WIDGET (dialog)))
1084     gtk_widget_show (GTK_WIDGET (dialog));
1085
1086   response_handler =
1087     g_signal_connect (dialog,
1088                       "response",
1089                       G_CALLBACK (run_response_handler),
1090                       &ri);
1091
1092   unmap_handler =
1093     g_signal_connect (dialog,
1094                       "unmap",
1095                       G_CALLBACK (run_unmap_handler),
1096                       &ri);
1097
1098   delete_handler =
1099     g_signal_connect (dialog,
1100                       "delete-event",
1101                       G_CALLBACK (run_delete_handler),
1102                       &ri);
1103
1104   destroy_handler =
1105     g_signal_connect (dialog,
1106                       "destroy",
1107                       G_CALLBACK (run_destroy_handler),
1108                       &ri);
1109
1110   ri.loop = g_main_loop_new (NULL, FALSE);
1111
1112   GDK_THREADS_LEAVE ();
1113   g_main_loop_run (ri.loop);
1114   GDK_THREADS_ENTER ();
1115
1116   g_main_loop_unref (ri.loop);
1117
1118   ri.loop = NULL;
1119
1120   if (!ri.destroyed)
1121     {
1122       if (!was_modal)
1123         gtk_window_set_modal (GTK_WINDOW(dialog), FALSE);
1124
1125       g_signal_handler_disconnect (dialog, response_handler);
1126       g_signal_handler_disconnect (dialog, unmap_handler);
1127       g_signal_handler_disconnect (dialog, delete_handler);
1128       g_signal_handler_disconnect (dialog, destroy_handler);
1129     }
1130
1131   g_object_unref (dialog);
1132
1133   return ri.response_id;
1134 }
1135
1136 void
1137 _gtk_dialog_set_ignore_separator (GtkDialog *dialog,
1138                                   gboolean   ignore_separator)
1139 {
1140   GtkDialogPriv *priv = dialog->priv;
1141
1142   priv->ignore_separator = ignore_separator;
1143 }
1144
1145 /**
1146  * gtk_dialog_get_widget_for_response:
1147  * @dialog: a #GtkDialog
1148  * @response_id: the response ID used by the @dialog widget
1149  *
1150  * Gets the widget button that uses the given response ID in the action area
1151  * of a dialog.
1152  *
1153  * Returns: the @widget button that uses the given @response_id, or %NULL.
1154  *
1155  * Since: 2.20
1156  */
1157 GtkWidget*
1158 gtk_dialog_get_widget_for_response (GtkDialog *dialog,
1159                                     gint       response_id)
1160 {
1161   GtkDialogPriv *priv;
1162   GList *children;
1163   GList *tmp_list;
1164
1165   g_return_val_if_fail (GTK_IS_DIALOG (dialog), NULL);
1166
1167   priv = dialog->priv;
1168
1169   children = gtk_container_get_children (GTK_CONTAINER (priv->action_area));
1170
1171   tmp_list = children;
1172   while (tmp_list != NULL)
1173     {
1174       GtkWidget *widget = tmp_list->data;
1175       ResponseData *rd = get_response_data (widget, FALSE);
1176
1177       if (rd && rd->response_id == response_id)
1178         {
1179           g_list_free (children);
1180           return widget;
1181         }
1182
1183       tmp_list = g_list_next (tmp_list);
1184     }
1185
1186   g_list_free (children);
1187
1188   return NULL;
1189 }
1190
1191 /**
1192  * gtk_dialog_get_response_for_widget:
1193  * @dialog: a #GtkDialog
1194  * @widget: a widget in the action area of @dialog
1195  *
1196  * Gets the response id of a widget in the action area
1197  * of a dialog.
1198  *
1199  * Returns: the response id of @widget, or %GTK_RESPONSE_NONE
1200  *  if @widget doesn't have a response id set.
1201  *
1202  * Since: 2.8
1203  */
1204 gint
1205 gtk_dialog_get_response_for_widget (GtkDialog *dialog,
1206                                     GtkWidget *widget)
1207 {
1208   ResponseData *rd;
1209
1210   rd = get_response_data (widget, FALSE);
1211   if (!rd)
1212     return GTK_RESPONSE_NONE;
1213   else
1214     return rd->response_id;
1215 }
1216
1217 /**
1218  * gtk_alternative_dialog_button_order:
1219  * @screen: (allow-none): a #GdkScreen, or %NULL to use the default screen
1220  *
1221  * Returns %TRUE if dialogs are expected to use an alternative
1222  * button order on the screen @screen. See
1223  * gtk_dialog_set_alternative_button_order() for more details
1224  * about alternative button order.
1225  *
1226  * If you need to use this function, you should probably connect
1227  * to the ::notify:gtk-alternative-button-order signal on the
1228  * #GtkSettings object associated to @screen, in order to be
1229  * notified if the button order setting changes.
1230  *
1231  * Returns: Whether the alternative button order should be used
1232  *
1233  * Since: 2.6
1234  */
1235 gboolean
1236 gtk_alternative_dialog_button_order (GdkScreen *screen)
1237 {
1238   GtkSettings *settings;
1239   gboolean result;
1240
1241   if (screen)
1242     settings = gtk_settings_get_for_screen (screen);
1243   else
1244     settings = gtk_settings_get_default ();
1245
1246   g_object_get (settings,
1247                 "gtk-alternative-button-order", &result, NULL);
1248
1249   return result;
1250 }
1251
1252 static void
1253 gtk_dialog_set_alternative_button_order_valist (GtkDialog *dialog,
1254                                                 gint       first_response_id,
1255                                                 va_list    args)
1256 {
1257   GtkDialogPriv *priv = dialog->priv;
1258   GtkWidget *child;
1259   gint response_id;
1260   gint position;
1261
1262   response_id = first_response_id;
1263   position = 0;
1264   while (response_id != -1)
1265     {
1266       /* reorder child with response_id to position */
1267       child = dialog_find_button (dialog, response_id);
1268       gtk_box_reorder_child (GTK_BOX (priv->action_area), child, position);
1269
1270       response_id = va_arg (args, gint);
1271       position++;
1272     }
1273 }
1274
1275 /**
1276  * gtk_dialog_set_alternative_button_order:
1277  * @dialog: a #GtkDialog
1278  * @first_response_id: a response id used by one @dialog's buttons
1279  * @Varargs: a list of more response ids of @dialog's buttons, terminated by -1
1280  *
1281  * Sets an alternative button order. If the
1282  * #GtkSettings:gtk-alternative-button-order setting is set to %TRUE,
1283  * the dialog buttons are reordered according to the order of the
1284  * response ids passed to this function.
1285  *
1286  * By default, GTK+ dialogs use the button order advocated by the Gnome
1287  * <ulink url="http://developer.gnome.org/projects/gup/hig/2.0/">Human
1288  * Interface Guidelines</ulink> with the affirmative button at the far
1289  * right, and the cancel button left of it. But the builtin GTK+ dialogs
1290  * and #GtkMessageDialog<!-- -->s do provide an alternative button order,
1291  * which is more suitable on some platforms, e.g. Windows.
1292  *
1293  * Use this function after adding all the buttons to your dialog, as the
1294  * following example shows:
1295  * |[
1296  * cancel_button = gtk_dialog_add_button (GTK_DIALOG (dialog),
1297  *                                        GTK_STOCK_CANCEL,
1298  *                                        GTK_RESPONSE_CANCEL);
1299  *
1300  * ok_button = gtk_dialog_add_button (GTK_DIALOG (dialog),
1301  *                                    GTK_STOCK_OK,
1302  *                                    GTK_RESPONSE_OK);
1303  *
1304  * gtk_widget_grab_default (ok_button);
1305  *
1306  * help_button = gtk_dialog_add_button (GTK_DIALOG (dialog),
1307  *                                      GTK_STOCK_HELP,
1308  *                                      GTK_RESPONSE_HELP);
1309  *
1310  * gtk_dialog_set_alternative_button_order (GTK_DIALOG (dialog),
1311  *                                          GTK_RESPONSE_OK,
1312  *                                          GTK_RESPONSE_CANCEL,
1313  *                                          GTK_RESPONSE_HELP,
1314  *                                          -1);
1315  * ]|
1316  *
1317  * Since: 2.6
1318  */
1319 void
1320 gtk_dialog_set_alternative_button_order (GtkDialog *dialog,
1321                                          gint       first_response_id,
1322                                          ...)
1323 {
1324   GdkScreen *screen;
1325   va_list args;
1326
1327   g_return_if_fail (GTK_IS_DIALOG (dialog));
1328
1329   screen = gtk_widget_get_screen (GTK_WIDGET (dialog));
1330   if (!gtk_alternative_dialog_button_order (screen))
1331       return;
1332
1333   va_start (args, first_response_id);
1334
1335   gtk_dialog_set_alternative_button_order_valist (dialog,
1336                                                   first_response_id,
1337                                                   args);
1338   va_end (args);
1339 }
1340 /**
1341  * gtk_dialog_set_alternative_button_order_from_array:
1342  * @dialog: a #GtkDialog
1343  * @n_params: the number of response ids in @new_order
1344  * @new_order: an array of response ids of @dialog's buttons
1345  *
1346  * Sets an alternative button order. If the
1347  * #GtkSettings:gtk-alternative-button-order setting is set to %TRUE,
1348  * the dialog buttons are reordered according to the order of the
1349  * response ids in @new_order.
1350  *
1351  * See gtk_dialog_set_alternative_button_order() for more information.
1352  *
1353  * This function is for use by language bindings.
1354  *
1355  * Since: 2.6
1356  */
1357 void
1358 gtk_dialog_set_alternative_button_order_from_array (GtkDialog *dialog,
1359                                                     gint       n_params,
1360                                                     gint      *new_order)
1361 {
1362   GtkDialogPriv *priv = dialog->priv;
1363   GdkScreen *screen;
1364   GtkWidget *child;
1365   gint position;
1366
1367   g_return_if_fail (GTK_IS_DIALOG (dialog));
1368   g_return_if_fail (new_order != NULL);
1369
1370   screen = gtk_widget_get_screen (GTK_WIDGET (dialog));
1371   if (!gtk_alternative_dialog_button_order (screen))
1372       return;
1373
1374   for (position = 0; position < n_params; position++)
1375   {
1376       /* reorder child with response_id to position */
1377       child = dialog_find_button (dialog, new_order[position]);
1378       gtk_box_reorder_child (GTK_BOX (priv->action_area), child, position);
1379     }
1380 }
1381
1382 typedef struct {
1383   gchar *widget_name;
1384   gchar *response_id;
1385 } ActionWidgetInfo;
1386
1387 typedef struct {
1388   GtkDialog *dialog;
1389   GtkBuilder *builder;
1390   GSList *items;
1391   gchar *response;
1392 } ActionWidgetsSubParserData;
1393
1394 static void
1395 attributes_start_element (GMarkupParseContext *context,
1396                           const gchar         *element_name,
1397                           const gchar        **names,
1398                           const gchar        **values,
1399                           gpointer             user_data,
1400                           GError             **error)
1401 {
1402   ActionWidgetsSubParserData *parser_data = (ActionWidgetsSubParserData*)user_data;
1403   guint i;
1404
1405   if (strcmp (element_name, "action-widget") == 0)
1406     {
1407       for (i = 0; names[i]; i++)
1408         if (strcmp (names[i], "response") == 0)
1409           parser_data->response = g_strdup (values[i]);
1410     }
1411   else if (strcmp (element_name, "action-widgets") == 0)
1412     return;
1413   else
1414     g_warning ("Unsupported tag for GtkDialog: %s\n", element_name);
1415 }
1416
1417 static void
1418 attributes_text_element (GMarkupParseContext *context,
1419                          const gchar         *text,
1420                          gsize                text_len,
1421                          gpointer             user_data,
1422                          GError             **error)
1423 {
1424   ActionWidgetsSubParserData *parser_data = (ActionWidgetsSubParserData*)user_data;
1425   ActionWidgetInfo *item;
1426
1427   if (!parser_data->response)
1428     return;
1429
1430   item = g_new (ActionWidgetInfo, 1);
1431   item->widget_name = g_strndup (text, text_len);
1432   item->response_id = parser_data->response;
1433   parser_data->items = g_slist_prepend (parser_data->items, item);
1434   parser_data->response = NULL;
1435 }
1436
1437 static const GMarkupParser attributes_parser =
1438   {
1439     attributes_start_element,
1440     NULL,
1441     attributes_text_element,
1442   };
1443
1444 static gboolean
1445 gtk_dialog_buildable_custom_tag_start (GtkBuildable  *buildable,
1446                                        GtkBuilder    *builder,
1447                                        GObject       *child,
1448                                        const gchar   *tagname,
1449                                        GMarkupParser *parser,
1450                                        gpointer      *data)
1451 {
1452   ActionWidgetsSubParserData *parser_data;
1453
1454   if (child)
1455     return FALSE;
1456
1457   if (strcmp (tagname, "action-widgets") == 0)
1458     {
1459       parser_data = g_slice_new0 (ActionWidgetsSubParserData);
1460       parser_data->dialog = GTK_DIALOG (buildable);
1461       parser_data->items = NULL;
1462
1463       *parser = attributes_parser;
1464       *data = parser_data;
1465       return TRUE;
1466     }
1467
1468   return parent_buildable_iface->custom_tag_start (buildable, builder, child,
1469                                                    tagname, parser, data);
1470 }
1471
1472 static void
1473 gtk_dialog_buildable_custom_finished (GtkBuildable *buildable,
1474                                       GtkBuilder   *builder,
1475                                       GObject      *child,
1476                                       const gchar  *tagname,
1477                                       gpointer      user_data)
1478 {
1479   GtkDialog *dialog = GTK_DIALOG (buildable);
1480   GtkDialogPriv *priv = dialog->priv;
1481   GSList *l;
1482   ActionWidgetsSubParserData *parser_data;
1483   GObject *object;
1484   ResponseData *ad;
1485   guint signal_id;
1486
1487   if (strcmp (tagname, "action-widgets"))
1488     {
1489     parent_buildable_iface->custom_finished (buildable, builder, child,
1490                                              tagname, user_data);
1491     return;
1492     }
1493
1494   parser_data = (ActionWidgetsSubParserData*)user_data;
1495   parser_data->items = g_slist_reverse (parser_data->items);
1496
1497   for (l = parser_data->items; l; l = l->next)
1498     {
1499       ActionWidgetInfo *item = l->data;
1500
1501       object = gtk_builder_get_object (builder, item->widget_name);
1502       if (!object)
1503         {
1504           g_warning ("Unknown object %s specified in action-widgets of %s",
1505                      item->widget_name,
1506                      gtk_buildable_get_name (GTK_BUILDABLE (buildable)));
1507           continue;
1508         }
1509
1510       ad = get_response_data (GTK_WIDGET (object), TRUE);
1511       ad->response_id = atoi (item->response_id);
1512
1513       if (GTK_IS_BUTTON (object))
1514         signal_id = g_signal_lookup ("clicked", GTK_TYPE_BUTTON);
1515       else
1516         signal_id = GTK_WIDGET_GET_CLASS (object)->activate_signal;
1517
1518       if (signal_id)
1519         {
1520           GClosure *closure;
1521
1522           closure = g_cclosure_new_object (G_CALLBACK (action_widget_activated),
1523                                            G_OBJECT (dialog));
1524           g_signal_connect_closure_by_id (object,
1525                                           signal_id,
1526                                           0,
1527                                           closure,
1528                                           FALSE);
1529         }
1530
1531       if (ad->response_id == GTK_RESPONSE_HELP)
1532         gtk_button_box_set_child_secondary (GTK_BUTTON_BOX (priv->action_area),
1533                                             GTK_WIDGET (object), TRUE);
1534
1535       g_free (item->widget_name);
1536       g_free (item->response_id);
1537       g_free (item);
1538     }
1539   g_slist_free (parser_data->items);
1540   g_slice_free (ActionWidgetsSubParserData, parser_data);
1541 }
1542
1543 /**
1544  * gtk_dialog_get_action_area:
1545  * @dialog: a #GtkDialog
1546  *
1547  * Returns the action area of @dialog.
1548  *
1549  * Returns: (transfer none): the action area.
1550  *
1551  * Since: 2.14
1552  **/
1553 GtkWidget *
1554 gtk_dialog_get_action_area (GtkDialog *dialog)
1555 {
1556   g_return_val_if_fail (GTK_IS_DIALOG (dialog), NULL);
1557
1558   return dialog->priv->action_area;
1559 }
1560
1561 /**
1562  * gtk_dialog_get_content_area:
1563  * @dialog: a #GtkDialog
1564  *
1565  * Returns the content area of @dialog.
1566  *
1567  * Returns: (transfer none): the content area #GtkVBox.
1568  *
1569  * Since: 2.14
1570  **/
1571 GtkWidget *
1572 gtk_dialog_get_content_area (GtkDialog *dialog)
1573 {
1574   g_return_val_if_fail (GTK_IS_DIALOG (dialog), NULL);
1575
1576   return dialog->priv->vbox;
1577 }