gtkinfobar.c 39.1 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
/*
 * gtkinfobar.c
 * This file is part of GTK+
 *
 * Copyright (C) 2005 - Paolo Maggi
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
Javier Jardón's avatar
Javier Jardón committed
18
 * License along with this library. If not, see <http://www.gnu.org/licenses/>.
19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36
 */

/*
 * Modified by the gedit Team, 2005. See the AUTHORS file for a
 * list of people on the gtk Team.
 * See the gedit ChangeLog files for a list of changes.
 *
 * Modified by the GTK+ team, 2008-2009.
 */


#include "config.h"

#include <stdlib.h>

#include "gtkinfobar.h"
#include "gtkaccessible.h"
#include "gtkbuildable.h"
Matthias Clasen's avatar
Matthias Clasen committed
37
#include "gtkbbox.h"
38 39 40 41 42 43
#include "gtkbox.h"
#include "gtklabel.h"
#include "gtkbutton.h"
#include "gtkenums.h"
#include "gtkbindings.h"
#include "gtkdialog.h"
44
#include "gtkrevealer.h"
45 46
#include "gtkintl.h"
#include "gtkprivate.h"
47
#include "gtkorientable.h"
48
#include "gtktypebuiltins.h"
49
#include "deprecated/gtkstock.h"
50 51 52 53 54 55 56 57 58 59

/**
 * SECTION:gtkinfobar
 * @short_description: Report important messages to the user
 * @include: gtk/gtk.h
 * @see_also: #GtkStatusbar, #GtkMessageDialog
 *
 * #GtkInfoBar is a widget that can be used to show messages to
 * the user without showing a dialog. It is often temporarily shown
 * at the top or bottom of a document. In contrast to #GtkDialog, which
60 61
 * has a action area at the bottom, #GtkInfoBar has an action area
 * at the side.
62 63 64 65 66 67
 *
 * The API of #GtkInfoBar is very similar to #GtkDialog, allowing you
 * to add buttons to the action area with gtk_info_bar_add_button() or
 * gtk_info_bar_new_with_buttons(). The sensitivity of action widgets
 * can be controlled with gtk_info_bar_set_response_sensitive().
 * To add widgets to the main content area of a #GtkInfoBar, use
68
 * gtk_info_bar_get_content_area() and add your widgets to the container.
69 70 71
 *
 * Similar to #GtkMessageDialog, the contents of a #GtkInfoBar can by
 * classified as error message, warning, informational message, etc,
72 73
 * by using gtk_info_bar_set_message_type(). GTK+ may use the message type
 * to determine how the message is displayed.
74
 *
75
 * A simple example for using a GtkInfoBar:
76
 * |[<!-- language="C" -->
77
 * // set up info bar
78 79 80 81 82 83 84
 * GtkWidget *widget;
 * GtkInfoBar *bar;
 *
 * widget = gtk_info_bar_new ();
 * bar = GTK_INFO_BAR (bar);
 *
 * gtk_widget_set_no_show_all (widget, TRUE);
85 86
 * message_label = gtk_label_new ("");
 * gtk_widget_show (message_label);
87 88 89 90 91 92 93 94 95 96
 * content_area = gtk_info_bar_get_content_area (bar);
 * gtk_container_add (GTK_CONTAINER (content_area),
 *                    message_label);
 * gtk_info_bar_add_button (bar,
 *                          _("_OK"),
 *                          GTK_RESPONSE_OK);
 * g_signal_connect (bar,
 *                   "response",
 *                   G_CALLBACK (gtk_widget_hide),
 *                   NULL);
97
 * gtk_grid_attach (GTK_GRID (grid),
98
 *                  widget,
99
 *                  0, 2, 1, 1);
100
 *
101
 * ...
102
 *
103
 * // show an error message
104 105
 * gtk_label_set_text (GTK_LABEL (message_label), message);
 * gtk_info_bar_set_message_type (bar,
106
 *                                GTK_MESSAGE_ERROR);
107
 * gtk_widget_show (bar);
108
 * ]|
109
 *
110
 * # GtkInfoBar as GtkBuildable
111
 *
112 113
 * The GtkInfoBar implementation of the GtkBuildable interface exposes
 * the content area and action area as internal children with the names
114
 * “content_area” and “action_area”.
115
 *
116 117 118 119
 * GtkInfoBar supports a custom <action-widgets> element, which can contain
 * multiple <action-widget> elements. The “response” attribute specifies a
 * numeric response, and the content of the element is the id of widget
 * (which should be a child of the dialogs @action_area).
120 121 122 123 124
 */

enum
{
  PROP_0,
125 126
  PROP_MESSAGE_TYPE,
  PROP_SHOW_CLOSE_BUTTON
127 128 129 130 131 132
};

struct _GtkInfoBarPrivate
{
  GtkWidget *content_area;
  GtkWidget *action_area;
133
  GtkWidget *close_button;
134
  GtkWidget *revealer;
135

136
  gboolean show_close_button;
137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155
  GtkMessageType message_type;
};

typedef struct _ResponseData ResponseData;

struct _ResponseData
{
  gint response_id;
};

enum
{
  RESPONSE,
  CLOSE,
  LAST_SIGNAL
};

static guint signals[LAST_SIGNAL];

156 157 158 159
#define ACTION_AREA_DEFAULT_BORDER 5
#define ACTION_AREA_DEFAULT_SPACING 6
#define CONTENT_AREA_DEFAULT_BORDER 8
#define CONTENT_AREA_DEFAULT_SPACING 16
160 161 162 163 164 165 166 167 168

static void     gtk_info_bar_set_property (GObject        *object,
                                           guint           prop_id,
                                           const GValue   *value,
                                           GParamSpec     *pspec);
static void     gtk_info_bar_get_property (GObject        *object,
                                           guint           prop_id,
                                           GValue         *value,
                                           GParamSpec     *pspec);
Paolo Borelli's avatar
Paolo Borelli committed
169 170 171 172 173 174 175 176
static void     gtk_info_bar_get_preferred_width          (GtkWidget *widget,
                                                           gint      *minimum_width,
                                                           gint      *natural_width);
static void     gtk_info_bar_get_preferred_height         (GtkWidget *widget,
                                                           gint      *minimum_height,
                                                           gint      *natural_height);
static gboolean gtk_info_bar_draw                         (GtkWidget      *widget,
                                                           cairo_t        *cr);
177 178 179 180 181 182 183 184 185 186 187 188 189 190
static void     gtk_info_bar_buildable_interface_init     (GtkBuildableIface *iface);
static gboolean  gtk_info_bar_buildable_custom_tag_start   (GtkBuildable  *buildable,
                                                            GtkBuilder    *builder,
                                                            GObject       *child,
                                                            const gchar   *tagname,
                                                            GMarkupParser *parser,
                                                            gpointer      *data);
static void      gtk_info_bar_buildable_custom_finished    (GtkBuildable  *buildable,
                                                            GtkBuilder    *builder,
                                                            GObject       *child,
                                                            const gchar   *tagname,
                                                            gpointer       user_data);


191
G_DEFINE_TYPE_WITH_CODE (GtkInfoBar, gtk_info_bar, GTK_TYPE_BOX,
192
                         G_ADD_PRIVATE (GtkInfoBar)
193 194 195 196 197 198 199 200 201
                         G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
                                                gtk_info_bar_buildable_interface_init))

static void
gtk_info_bar_set_property (GObject      *object,
                           guint         prop_id,
                           const GValue *value,
                           GParamSpec   *pspec)
{
202
  GtkInfoBar *info_bar = GTK_INFO_BAR (object);
203 204 205 206 207 208

  switch (prop_id)
    {
    case PROP_MESSAGE_TYPE:
      gtk_info_bar_set_message_type (info_bar, g_value_get_enum (value));
      break;
209 210 211
    case PROP_SHOW_CLOSE_BUTTON:
      gtk_info_bar_set_show_close_button (info_bar, g_value_get_boolean (value));
      break;
212 213 214 215 216 217 218 219 220 221 222 223
    default:
      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
      break;
    }
}

static void
gtk_info_bar_get_property (GObject    *object,
                           guint       prop_id,
                           GValue     *value,
                           GParamSpec *pspec)
{
224
  GtkInfoBar *info_bar = GTK_INFO_BAR (object);
225 226 227 228 229 230

  switch (prop_id)
    {
    case PROP_MESSAGE_TYPE:
      g_value_set_enum (value, gtk_info_bar_get_message_type (info_bar));
      break;
231 232 233
    case PROP_SHOW_CLOSE_BUTTON:
      g_value_set_boolean (value, gtk_info_bar_get_show_close_button (info_bar));
      break;
234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299
    default:
      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
      break;
    }
}

static void
gtk_info_bar_finalize (GObject *object)
{
  G_OBJECT_CLASS (gtk_info_bar_parent_class)->finalize (object);
}

static void
response_data_free (gpointer data)
{
  g_slice_free (ResponseData, data);
}

static ResponseData *
get_response_data (GtkWidget *widget,
                   gboolean   create)
{
  ResponseData *ad = g_object_get_data (G_OBJECT (widget),
                                        "gtk-info-bar-response-data");

  if (ad == NULL && create)
    {
      ad = g_slice_new (ResponseData);

      g_object_set_data_full (G_OBJECT (widget),
                              I_("gtk-info-bar-response-data"),
                              ad,
                              response_data_free);
    }

  return ad;
}

static GtkWidget *
find_button (GtkInfoBar *info_bar,
             gint        response_id)
{
  GList *children, *list;
  GtkWidget *child = NULL;

  children = gtk_container_get_children (GTK_CONTAINER (info_bar->priv->action_area));

  for (list = children; list; list = list->next)
    {
      ResponseData *rd = get_response_data (list->data, FALSE);

      if (rd && rd->response_id == response_id)
        {
          child = list->data;
          break;
        }
    }

  g_list_free (children);

  return child;
}

static void
gtk_info_bar_close (GtkInfoBar *info_bar)
{
300 301
  if (!gtk_widget_get_visible (info_bar->priv->close_button)
      && !find_button (info_bar, GTK_RESPONSE_CANCEL))
302 303 304 305 306 307
    return;

  gtk_info_bar_response (GTK_INFO_BAR (info_bar),
                         GTK_RESPONSE_CANCEL);
}

Paolo Borelli's avatar
Paolo Borelli committed
308 309 310
static void
get_padding_and_border (GtkWidget *widget,
                        GtkBorder *border)
311
{
Paolo Borelli's avatar
Paolo Borelli committed
312 313 314 315 316 317 318 319 320 321 322 323 324 325
  GtkStyleContext *context;
  GtkStateFlags state;
  GtkBorder tmp;

  context = gtk_widget_get_style_context (widget);
  state = gtk_widget_get_state_flags (widget);

  gtk_style_context_get_padding (context, state, border);
  gtk_style_context_get_border (context, state, &tmp);
  border->top += tmp.top;
  border->right += tmp.right;
  border->bottom += tmp.bottom;
  border->left += tmp.left;
}
326

Paolo Borelli's avatar
Paolo Borelli committed
327 328 329 330 331 332
static void
gtk_info_bar_get_preferred_width (GtkWidget *widget,
                                  gint      *minimum_width,
                                  gint      *natural_width)
{
  GtkBorder border;
333

Paolo Borelli's avatar
Paolo Borelli committed
334
  get_padding_and_border (widget, &border);
335

Paolo Borelli's avatar
Paolo Borelli committed
336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378
  GTK_WIDGET_CLASS (gtk_info_bar_parent_class)->get_preferred_width (widget,
                                                                     minimum_width,
                                                                     natural_width);

  if (minimum_width)
    *minimum_width += border.left + border.right;
  if (natural_width)
    *natural_width += border.left + border.right;
}

static void
gtk_info_bar_get_preferred_height (GtkWidget *widget,
                                   gint      *minimum_height,
                                   gint      *natural_height)
{
  GtkBorder border;

  get_padding_and_border (widget, &border);

  GTK_WIDGET_CLASS (gtk_info_bar_parent_class)->get_preferred_height (widget,
                                                                      minimum_height,
                                                                      natural_height);

  if (minimum_height)
    *minimum_height += border.top + border.bottom;
  if (natural_height)
    *natural_height += border.top + border.bottom;
}

static gboolean
gtk_info_bar_draw (GtkWidget *widget,
                   cairo_t   *cr)
{
  GtkStyleContext *context;

  context = gtk_widget_get_style_context (widget);

  gtk_render_background (context, cr, 0, 0,
                         gtk_widget_get_allocated_width (widget),
                         gtk_widget_get_allocated_height (widget));
  gtk_render_frame (context, cr, 0, 0,
                    gtk_widget_get_allocated_width (widget),
                    gtk_widget_get_allocated_height (widget));
379

Paolo Borelli's avatar
Paolo Borelli committed
380
  GTK_WIDGET_CLASS (gtk_info_bar_parent_class)->draw (widget, cr);
381 382 383 384

  return FALSE;
}

385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411
static void
gtk_info_bar_show (GtkWidget *widget)
{
  GtkInfoBarPrivate *priv = GTK_INFO_BAR (widget)->priv;

  GTK_WIDGET_CLASS (gtk_info_bar_parent_class)->show (widget);

  gtk_revealer_set_reveal_child (GTK_REVEALER (priv->revealer), TRUE);
}

static void
child_revealed (GObject *object, GParamSpec *pspec, gpointer data)
{
  GtkWidget *widget = data;

  GTK_WIDGET_CLASS (gtk_info_bar_parent_class)->hide (widget);
  g_signal_handlers_disconnect_by_func (object, child_revealed, widget);
  g_object_notify (G_OBJECT (widget), "visible");
}

static void
gtk_info_bar_hide (GtkWidget *widget)
{
  GtkInfoBarPrivate *priv = GTK_INFO_BAR (widget)->priv;

  g_signal_connect_object (priv->revealer, "notify::child-revealed",
                           G_CALLBACK (child_revealed), widget, 0);
412
  gtk_revealer_set_reveal_child (GTK_REVEALER (priv->revealer), FALSE);
413 414
}

415 416 417 418 419 420 421 422 423 424 425 426 427 428
static void
gtk_info_bar_class_init (GtkInfoBarClass *klass)
{
  GtkWidgetClass *widget_class;
  GObjectClass *object_class;
  GtkBindingSet *binding_set;

  widget_class = GTK_WIDGET_CLASS (klass);
  object_class = G_OBJECT_CLASS (klass);

  object_class->get_property = gtk_info_bar_get_property;
  object_class->set_property = gtk_info_bar_set_property;
  object_class->finalize = gtk_info_bar_finalize;

Paolo Borelli's avatar
Paolo Borelli committed
429 430
  widget_class->get_preferred_width = gtk_info_bar_get_preferred_width;
  widget_class->get_preferred_height = gtk_info_bar_get_preferred_height;
431
  widget_class->draw = gtk_info_bar_draw;
432 433
  widget_class->show = gtk_info_bar_show;
  widget_class->hide = gtk_info_bar_hide;
434 435 436 437 438 439 440 441

  klass->close = gtk_info_bar_close;

  /**
   * GtkInfoBar:message-type:
   *
   * The type of the message.
   *
442
   * The type may be used to determine the appearance of the info bar.
443
   *
444 445 446 447 448 449 450 451
   * Since: 2.18
   */
  g_object_class_install_property (object_class,
                                   PROP_MESSAGE_TYPE,
                                   g_param_spec_enum ("message-type",
                                                      P_("Message Type"),
                                                      P_("The type of message"),
                                                      GTK_TYPE_MESSAGE_TYPE,
452
                                                      GTK_MESSAGE_INFO,
453
                                                      GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT));
454 455 456 457 458 459 460 461 462 463 464 465 466 467 468

  /**
   * GtkInfoBar:show-close-button:
   *
   * Whether to include a standard close button.
   *
   * Since: 3.10
   */
  g_object_class_install_property (object_class,
                                   PROP_SHOW_CLOSE_BUTTON,
                                   g_param_spec_boolean ("show-close-button",
                                                         P_("Show Close Button"),
                                                         P_("Whether to include a standard close button"),
                                                         FALSE,
                                                         GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT));
469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492
  /**
   * GtkInfoBar::response:
   * @info_bar: the object on which the signal is emitted
   * @response_id: the response ID
   *
   * Emitted when an action widget is clicked or the application programmer
   * calls gtk_dialog_response(). The @response_id depends on which action
   * widget was clicked.
   *
   * Since: 2.18
   */
  signals[RESPONSE] = g_signal_new (I_("response"),
                                    G_OBJECT_CLASS_TYPE (klass),
                                    G_SIGNAL_RUN_LAST,
                                    G_STRUCT_OFFSET (GtkInfoBarClass, response),
                                    NULL, NULL,
                                    g_cclosure_marshal_VOID__INT,
                                    G_TYPE_NONE, 1,
                                    G_TYPE_INT);

  /**
   * GtkInfoBar::close:
   *
   * The ::close signal is a
493
   * [keybinding signal][GtkBindingSignal]
494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515
   * which gets emitted when the user uses a keybinding to dismiss
   * the info bar.
   *
   * The default binding for this signal is the Escape key.
   *
   * Since: 2.18
   */
  signals[CLOSE] =  g_signal_new (I_("close"),
                                  G_OBJECT_CLASS_TYPE (klass),
                                  G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
                                  G_STRUCT_OFFSET (GtkInfoBarClass, close),
                                  NULL, NULL,
                                  g_cclosure_marshal_VOID__VOID,
                                  G_TYPE_NONE, 0);

  /**
   * GtkInfoBar:content-area-border:
   *
   * The width of the border around the content
   * content area of the info bar.
   *
   * Since: 2.18
516
   * Deprecated: 3.6: Use gtk_container_set_border_width()
517 518 519 520 521 522 523
   */
  gtk_widget_class_install_style_property (widget_class,
                                           g_param_spec_int ("content-area-border",
                                                             P_("Content area border"),
                                                             P_("Width of border around the content area"),
                                                             0,
                                                             G_MAXINT,
524
                                                             CONTENT_AREA_DEFAULT_BORDER,
525 526 527 528 529 530 531 532 533
                                                             GTK_PARAM_READABLE));

  /**
   * GtkInfoBar:content-area-spacing:
   *
   * The default spacing used between elements of the
   * content area of the info bar.
   *
   * Since: 2.18
534
   * Deprecated: 3.6: Use gtk_box_set_spacing()
535 536 537 538 539 540 541
   */
  gtk_widget_class_install_style_property (widget_class,
                                           g_param_spec_int ("content-area-spacing",
                                                             P_("Content area spacing"),
                                                             P_("Spacing between elements of the area"),
                                                             0,
                                                             G_MAXINT,
542
                                                             CONTENT_AREA_DEFAULT_SPACING,
543 544 545 546 547 548 549 550
                                                             GTK_PARAM_READABLE));

  /**
   * GtkInfoBar:button-spacing:
   *
   * Spacing between buttons in the action area of the info bar.
   *
   * Since: 2.18
551
   * Deprecated: 3.6: Use gtk_box_set_spacing()
552 553 554 555 556 557 558
   */
  gtk_widget_class_install_style_property (widget_class,
                                           g_param_spec_int ("button-spacing",
                                                             P_("Button spacing"),
                                                             P_("Spacing between buttons"),
                                                             0,
                                                             G_MAXINT,
559
                                                             ACTION_AREA_DEFAULT_SPACING,
560 561 562 563 564 565 566 567
                                                             GTK_PARAM_READABLE));

  /**
   * GtkInfoBar:action-area-border:
   *
   * Width of the border around the action area of the info bar.
   *
   * Since: 2.18
568
   * Deprecated: 3.6: Use gtk_container_set_border_width()
569 570 571 572 573 574 575
   */
  gtk_widget_class_install_style_property (widget_class,
                                           g_param_spec_int ("action-area-border",
                                                             P_("Action area border"),
                                                             P_("Width of border around the action area"),
                                                             0,
                                                             G_MAXINT,
576
                                                             ACTION_AREA_DEFAULT_BORDER,
577 578 579 580
                                                             GTK_PARAM_READABLE));

  binding_set = gtk_binding_set_by_class (klass);

581
  gtk_binding_entry_add_signal (binding_set, GDK_KEY_Escape, 0, "close", 0);
582

583 584
  /* Bind class to template
   */
585
  gtk_widget_class_set_template_from_resource (widget_class, "/org/gtk/libgtk/ui/gtkinfobar.ui");
586 587 588
  gtk_widget_class_bind_template_child_internal_private (widget_class, GtkInfoBar, content_area);
  gtk_widget_class_bind_template_child_internal_private (widget_class, GtkInfoBar, action_area);
  gtk_widget_class_bind_template_child_internal_private (widget_class, GtkInfoBar, close_button);
589
  gtk_widget_class_bind_template_child_internal_private (widget_class, GtkInfoBar, revealer);
590 591 592 593 594 595 596 597
}

static void
close_button_clicked_cb (GtkWidget  *button,
                         GtkInfoBar *info_bar)
{
  gtk_info_bar_response (GTK_INFO_BAR (info_bar),
                         GTK_RESPONSE_CLOSE);
598 599 600 601 602
}

static void
gtk_info_bar_init (GtkInfoBar *info_bar)
{
Matthias Clasen's avatar
Matthias Clasen committed
603
  GtkWidget *widget = GTK_WIDGET (info_bar);
604

605
  info_bar->priv = gtk_info_bar_get_instance_private (info_bar);
606

Matthias Clasen's avatar
Matthias Clasen committed
607
  gtk_widget_set_redraw_on_allocate (widget, TRUE);
608

609 610 611 612 613
  /* message-type is a CONSTRUCT property, so we init to a value
   * different from its default to trigger its property setter
   * during construction */
  info_bar->priv->message_type = GTK_MESSAGE_OTHER;

614
  gtk_widget_init_template (GTK_WIDGET (info_bar));
615 616 617 618

  gtk_widget_set_no_show_all (info_bar->priv->close_button, TRUE);
  g_signal_connect (info_bar->priv->close_button, "clicked",
                    G_CALLBACK (close_button_clicked_cb), info_bar);
619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710
}

static GtkBuildableIface *parent_buildable_iface;

static void
gtk_info_bar_buildable_interface_init (GtkBuildableIface *iface)
{
  parent_buildable_iface = g_type_interface_peek_parent (iface);
  iface->custom_tag_start = gtk_info_bar_buildable_custom_tag_start;
  iface->custom_finished = gtk_info_bar_buildable_custom_finished;
}

static gint
get_response_for_widget (GtkInfoBar *info_bar,
                         GtkWidget  *widget)
{
  ResponseData *rd;

  rd = get_response_data (widget, FALSE);
  if (!rd)
    return GTK_RESPONSE_NONE;
  else
    return rd->response_id;
}

static void
action_widget_activated (GtkWidget  *widget,
                         GtkInfoBar *info_bar)
{
  gint response_id;

  response_id = get_response_for_widget (info_bar, widget);
  gtk_info_bar_response (info_bar, response_id);
}

/**
 * gtk_info_bar_add_action_widget:
 * @info_bar: a #GtkInfoBar
 * @child: an activatable widget
 * @response_id: response ID for @child
 *
 * Add an activatable widget to the action area of a #GtkInfoBar,
 * connecting a signal handler that will emit the #GtkInfoBar::response
 * signal on the message area when the widget is activated. The widget
 * is appended to the end of the message areas action area.
 *
 * Since: 2.18
 */
void
gtk_info_bar_add_action_widget (GtkInfoBar *info_bar,
                                GtkWidget  *child,
                                gint        response_id)
{
  ResponseData *ad;
  guint signal_id;

  g_return_if_fail (GTK_IS_INFO_BAR (info_bar));
  g_return_if_fail (GTK_IS_WIDGET (child));

  ad = get_response_data (child, TRUE);

  ad->response_id = response_id;

  if (GTK_IS_BUTTON (child))
    signal_id = g_signal_lookup ("clicked", GTK_TYPE_BUTTON);
  else
    signal_id = GTK_WIDGET_GET_CLASS (child)->activate_signal;

  if (signal_id)
    {
      GClosure *closure;

      closure = g_cclosure_new_object (G_CALLBACK (action_widget_activated),
                                       G_OBJECT (info_bar));
      g_signal_connect_closure_by_id (child, signal_id, 0, closure, FALSE);
    }
  else
    g_warning ("Only 'activatable' widgets can be packed into the action area of a GtkInfoBar");

  gtk_box_pack_end (GTK_BOX (info_bar->priv->action_area),
                    child, FALSE, FALSE, 0);
  if (response_id == GTK_RESPONSE_HELP)
    gtk_button_box_set_child_secondary (GTK_BUTTON_BOX (info_bar->priv->action_area),
                                        child, TRUE);
}

/**
 * gtk_info_bar_get_action_area:
 * @info_bar: a #GtkInfoBar
 *
 * Returns the action area of @info_bar.
 *
711
 * Returns: (transfer none): the action area
712 713 714 715 716 717
 *
 * Since: 2.18
 */
GtkWidget*
gtk_info_bar_get_action_area (GtkInfoBar *info_bar)
{
718
  g_return_val_if_fail (GTK_IS_INFO_BAR (info_bar), NULL);
719 720 721 722 723 724 725 726 727 728

  return info_bar->priv->action_area;
}

/**
 * gtk_info_bar_get_content_area:
 * @info_bar: a #GtkInfoBar
 *
 * Returns the content area of @info_bar.
 *
729
 * Returns: (transfer none): the content area
730 731 732 733 734 735
 *
 * Since: 2.18
 */
GtkWidget*
gtk_info_bar_get_content_area (GtkInfoBar *info_bar)
{
736
  g_return_val_if_fail (GTK_IS_INFO_BAR (info_bar), NULL);
737 738 739 740 741 742 743

  return info_bar->priv->content_area;
}

/**
 * gtk_info_bar_add_button:
 * @info_bar: a #GtkInfoBar
744
 * @button_text: text of button
745 746
 * @response_id: response ID for the button
 *
747
 * Adds a button with the given text and sets things up so that
748
 * clicking the button will emit the “response” signal with the given
749 750 751
 * response_id. The button is appended to the end of the info bars's
 * action area. The button widget is returned, but usually you don't
 * need it.
752
 *
753
 * Returns: (transfer none): the #GtkButton widget that was added
754 755 756 757 758 759 760 761 762 763 764 765 766
 *
 * Since: 2.18
 */
GtkWidget*
gtk_info_bar_add_button (GtkInfoBar  *info_bar,
                         const gchar *button_text,
                         gint         response_id)
{
  GtkWidget *button;

  g_return_val_if_fail (GTK_IS_INFO_BAR (info_bar), NULL);
  g_return_val_if_fail (button_text != NULL, NULL);

767 768 769
  button = gtk_button_new_with_label (button_text);
  gtk_button_set_use_underline (GTK_BUTTON (button), TRUE);

770 771
  G_GNUC_BEGIN_IGNORE_DEPRECATIONS;

772 773 774 775 776 777
  if (button_text)
    {
      GtkStockItem item;
      if (gtk_stock_lookup (button_text, &item))
        g_object_set (button, "use-stock", TRUE, NULL);
    }
778

779 780
  G_GNUC_END_IGNORE_DEPRECATIONS;

781
  gtk_widget_set_can_default (button, TRUE);
782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860

  gtk_widget_show (button);

  gtk_info_bar_add_action_widget (info_bar, button, response_id);

  return button;
}

static void
add_buttons_valist (GtkInfoBar  *info_bar,
                    const gchar *first_button_text,
                    va_list      args)
{
  const gchar* text;
  gint response_id;

  g_return_if_fail (GTK_IS_INFO_BAR (info_bar));

  if (first_button_text == NULL)
    return;

  text = first_button_text;
  response_id = va_arg (args, gint);

  while (text != NULL)
    {
      gtk_info_bar_add_button (info_bar, text, response_id);

      text = va_arg (args, gchar*);
      if (text == NULL)
        break;

      response_id = va_arg (args, int);
    }
}

/**
 * gtk_info_bar_add_buttons:
 * @info_bar: a #GtkInfoBar
 * @first_button_text: button text or stock ID
 * @...: response ID for first button, then more text-response_id pairs,
 *     ending with %NULL
 *
 * Adds more buttons, same as calling gtk_info_bar_add_button()
 * repeatedly. The variable argument list should be %NULL-terminated
 * as with gtk_info_bar_new_with_buttons(). Each button must have both
 * text and response ID.
 *
 * Since: 2.18
 */
void
gtk_info_bar_add_buttons (GtkInfoBar  *info_bar,
                          const gchar *first_button_text,
                          ...)
{
  va_list args;

  va_start (args, first_button_text);
  add_buttons_valist (info_bar, first_button_text, args);
  va_end (args);
}

/**
 * gtk_info_bar_new:
 *
 * Creates a new #GtkInfoBar object.
 *
 * Returns: a new #GtkInfoBar object
 *
 * Since: 2.18
 */
GtkWidget *
gtk_info_bar_new (void)
{
   return g_object_new (GTK_TYPE_INFO_BAR, NULL);
}

/**
 * gtk_info_bar_new_with_buttons:
861
 * @first_button_text: (allow-none): stock ID or text to go in first button, or %NULL
862 863 864 865 866 867 868 869 870
 * @...: response ID for first button, then additional buttons, ending
 *    with %NULL
 *
 * Creates a new #GtkInfoBar with buttons. Button text/response ID
 * pairs should be listed, with a %NULL pointer ending the list.
 * Button text can be either a stock ID such as %GTK_STOCK_OK, or
 * some arbitrary text. A response ID can be any positive number,
 * or one of the values in the #GtkResponseType enumeration. If the
 * user clicks one of these dialog buttons, GtkInfoBar will emit
871
 * the “response” signal with the corresponding response ID.
872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897
 *
 * Returns: a new #GtkInfoBar
 */
GtkWidget*
gtk_info_bar_new_with_buttons (const gchar *first_button_text,
                               ...)
{
  GtkInfoBar *info_bar;
  va_list args;

  info_bar = GTK_INFO_BAR (gtk_info_bar_new ());

  va_start (args, first_button_text);
  add_buttons_valist (info_bar, first_button_text, args);
  va_end (args);

  return GTK_WIDGET (info_bar);
}

/**
 * gtk_info_bar_set_response_sensitive:
 * @info_bar: a #GtkInfoBar
 * @response_id: a response ID
 * @setting: TRUE for sensitive
 *
 * Calls gtk_widget_set_sensitive (widget, setting) for each
898
 * widget in the info bars’s action area with the given response_id.
899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930
 * A convenient way to sensitize/desensitize dialog buttons.
 *
 * Since: 2.18
 */
void
gtk_info_bar_set_response_sensitive (GtkInfoBar *info_bar,
                                     gint        response_id,
                                     gboolean    setting)
{
  GList *children, *list;

  g_return_if_fail (GTK_IS_INFO_BAR (info_bar));

  children = gtk_container_get_children (GTK_CONTAINER (info_bar->priv->action_area));

  for (list = children; list; list = list->next)
    {
      GtkWidget *widget = list->data;
      ResponseData *rd = get_response_data (widget, FALSE);

      if (rd && rd->response_id == response_id)
        gtk_widget_set_sensitive (widget, setting);
    }

  g_list_free (children);
}

/**
 * gtk_info_bar_set_default_response:
 * @info_bar: a #GtkInfoBar
 * @response_id: a response ID
 *
931
 * Sets the last widget in the info bar’s action area with
932
 * the given response_id as the default widget for the dialog.
933
 * Pressing “Enter” normally activates the default widget.
934
 *
935 936 937
 * Note that this function currently requires @info_bar to
 * be added to a widget hierarchy. 
 *
938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962
 * Since: 2.18
 */
void
gtk_info_bar_set_default_response (GtkInfoBar *info_bar,
                                   gint        response_id)
{
  GList *children, *list;

  g_return_if_fail (GTK_IS_INFO_BAR (info_bar));

  children = gtk_container_get_children (GTK_CONTAINER (info_bar->priv->action_area));

  for (list = children; list; list = list->next)
    {
      GtkWidget *widget = list->data;
      ResponseData *rd = get_response_data (widget, FALSE);

      if (rd && rd->response_id == response_id)
        gtk_widget_grab_default (widget);
    }

  g_list_free (children);
}

/**
963
 * gtk_info_bar_response:
964 965 966
 * @info_bar: a #GtkInfoBar
 * @response_id: a response ID
 *
967
 * Emits the “response” signal with the given @response_id.
968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053
 *
 * Since: 2.18
 */
void
gtk_info_bar_response (GtkInfoBar *info_bar,
                       gint        response_id)
{
  g_return_if_fail (GTK_IS_INFO_BAR (info_bar));

  g_signal_emit (info_bar, signals[RESPONSE], 0, response_id);
}

typedef struct
{
  gchar *widget_name;
  gchar *response_id;
} ActionWidgetInfo;

typedef struct
{
  GtkInfoBar *info_bar;
  GtkBuilder *builder;
  GSList *items;
  gchar *response;
} ActionWidgetsSubParserData;

static void
attributes_start_element (GMarkupParseContext  *context,
                          const gchar          *element_name,
                          const gchar         **names,
                          const gchar         **values,
                          gpointer              user_data,
                          GError              **error)
{
  ActionWidgetsSubParserData *parser_data = (ActionWidgetsSubParserData*)user_data;
  guint i;

  if (strcmp (element_name, "action-widget") == 0)
    {
      for (i = 0; names[i]; i++)
        if (strcmp (names[i], "response") == 0)
          parser_data->response = g_strdup (values[i]);
    }
  else if (strcmp (element_name, "action-widgets") == 0)
    return;
  else
    g_warning ("Unsupported tag for GtkInfoBar: %s\n", element_name);
}

static void
attributes_text_element (GMarkupParseContext  *context,
                         const gchar          *text,
                         gsize                 text_len,
                         gpointer              user_data,
                         GError              **error)
{
  ActionWidgetsSubParserData *parser_data = (ActionWidgetsSubParserData*)user_data;
  ActionWidgetInfo *item;

  if (!parser_data->response)
    return;

  item = g_new (ActionWidgetInfo, 1);
  item->widget_name = g_strndup (text, text_len);
  item->response_id = parser_data->response;
  parser_data->items = g_slist_prepend (parser_data->items, item);
  parser_data->response = NULL;
}

static const GMarkupParser attributes_parser =
{
  attributes_start_element,
  NULL,
  attributes_text_element,
};

gboolean
gtk_info_bar_buildable_custom_tag_start (GtkBuildable  *buildable,
                                         GtkBuilder    *builder,
                                         GObject       *child,
                                         const gchar   *tagname,
                                         GMarkupParser *parser,
                                         gpointer      *data)
{
  ActionWidgetsSubParserData *parser_data;

1054 1055 1056
  if (parent_buildable_iface->custom_tag_start (buildable, builder, child,
                                                tagname, parser, data))
    return TRUE;
1057

1058
  if (!child && strcmp (tagname, "action-widgets") == 0)
1059 1060 1061 1062 1063 1064 1065 1066 1067 1068
    {
      parser_data = g_slice_new0 (ActionWidgetsSubParserData);
      parser_data->info_bar = GTK_INFO_BAR (buildable);
      parser_data->items = NULL;

      *parser = attributes_parser;
      *data = parser_data;
      return TRUE;
    }

1069
  return FALSE;
1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161
}

static void
gtk_info_bar_buildable_custom_finished (GtkBuildable *buildable,
                                        GtkBuilder   *builder,
                                        GObject      *child,
                                        const gchar  *tagname,
                                        gpointer      user_data)
{
  GSList *l;
  ActionWidgetsSubParserData *parser_data;
  GObject *object;
  GtkInfoBar *info_bar;
  ResponseData *ad;
  guint signal_id;

  if (strcmp (tagname, "action-widgets"))
    {
      parent_buildable_iface->custom_finished (buildable, builder, child,
                                               tagname, user_data);
      return;
    }

  info_bar = GTK_INFO_BAR (buildable);
  parser_data = (ActionWidgetsSubParserData*)user_data;
  parser_data->items = g_slist_reverse (parser_data->items);

  for (l = parser_data->items; l; l = l->next)
    {
      ActionWidgetInfo *item = l->data;

      object = gtk_builder_get_object (builder, item->widget_name);
      if (!object)
        {
          g_warning ("Unknown object %s specified in action-widgets of %s",
                     item->widget_name,
                     gtk_buildable_get_name (GTK_BUILDABLE (buildable)));
          continue;
        }

      ad = get_response_data (GTK_WIDGET (object), TRUE);
      ad->response_id = atoi (item->response_id);

      if (GTK_IS_BUTTON (object))
        signal_id = g_signal_lookup ("clicked", GTK_TYPE_BUTTON);
      else
        signal_id = GTK_WIDGET_GET_CLASS (object)->activate_signal;

      if (signal_id)
        {
          GClosure *closure;

          closure = g_cclosure_new_object (G_CALLBACK (action_widget_activated),
                                           G_OBJECT (info_bar));
          g_signal_connect_closure_by_id (object,
                                          signal_id,
                                          0,
                                          closure,
                                          FALSE);
        }

      if (ad->response_id == GTK_RESPONSE_HELP)
        gtk_button_box_set_child_secondary (GTK_BUTTON_BOX (info_bar->priv->action_area),
                                            GTK_WIDGET (object), TRUE);

      g_free (item->widget_name);
      g_free (item->response_id);
      g_free (item);
    }
  g_slist_free (parser_data->items);
  g_slice_free (ActionWidgetsSubParserData, parser_data);
}

/**
 * gtk_info_bar_set_message_type:
 * @info_bar: a #GtkInfoBar
 * @message_type: a #GtkMessageType
 *
 * Sets the message type of the message area.
 * GTK+ uses this type to determine what color to use
 * when drawing the message area.
 *
 * Since: 2.18
 */
void
gtk_info_bar_set_message_type (GtkInfoBar     *info_bar,
                               GtkMessageType  message_type)
{
  GtkInfoBarPrivate *priv;

  g_return_if_fail (GTK_IS_INFO_BAR (info_bar));

1162
  priv = info_bar->priv;
1163 1164 1165

  if (priv->message_type != message_type)
    {
1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180
      GtkStyleContext *context;
      AtkObject *atk_obj;
      const char *type_class[] = {
        GTK_STYLE_CLASS_INFO,
        GTK_STYLE_CLASS_WARNING,
        GTK_STYLE_CLASS_QUESTION,
        GTK_STYLE_CLASS_ERROR,
        NULL
      };

      context = gtk_widget_get_style_context (GTK_WIDGET (info_bar));

      if (type_class[priv->message_type])
        gtk_style_context_remove_class (context, type_class[priv->message_type]);

1181 1182 1183 1184 1185 1186 1187
      priv->message_type = message_type;

      gtk_widget_queue_draw (GTK_WIDGET (info_bar));

      atk_obj = gtk_widget_get_accessible (GTK_WIDGET (info_bar));
      if (GTK_IS_ACCESSIBLE (atk_obj))
        {
1188
          const char *name = NULL;
1189

1190
          atk_object_set_role (atk_obj, ATK_ROLE_INFO_BAR);
1191 1192 1193 1194

          switch (message_type)
            {
            case GTK_MESSAGE_INFO:
1195
              name = _("Information");
1196 1197 1198
              break;

            case GTK_MESSAGE_QUESTION:
1199
              name = _("Question");
1200 1201 1202
              break;

            case GTK_MESSAGE_WARNING:
1203
              name = _("Warning");
1204 1205 1206
              break;

            case GTK_MESSAGE_ERROR:
1207
              name = _("Error");
1208 1209 1210 1211 1212 1213 1214 1215 1216 1217
              break;

            case GTK_MESSAGE_OTHER:
              break;

            default:
              g_warning ("Unknown GtkMessageType %u", message_type);
              break;
            }

1218
          if (name)
1219
            atk_object_set_name (atk_obj, name);
1220 1221
        }

1222 1223 1224
      if (type_class[priv->message_type])
        gtk_style_context_add_class (context, type_class[priv->message_type]);

1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241
      g_object_notify (G_OBJECT (info_bar), "message-type");
    }
}

/**
 * gtk_info_bar_get_message_type:
 * @info_bar: a #GtkInfoBar
 *
 * Returns the message type of the message area.
 *
 * Returns: the message type of the message area.
 *
 * Since: 2.18
 */
GtkMessageType
gtk_info_bar_get_message_type (GtkInfoBar *info_bar)
{
1242
  g_return_val_if_fail (GTK_IS_INFO_BAR (info_bar), GTK_MESSAGE_OTHER);
1243

1244
  return info_bar->priv->message_type;
1245
}
1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288


/**
 * gtk_info_bar_set_show_close_button:
 * @info_bar: a #GtkInfoBar
 * @setting: %TRUE to include a close button
 *
 * If true, a standard close button is shown. When clicked it emits
 * the response %GTK_RESPONSE_CLOSE.
 *
 * Since: 3.10
 */
void
gtk_info_bar_set_show_close_button (GtkInfoBar *info_bar,
                                    gboolean    setting)
{
  g_return_if_fail (GTK_IS_INFO_BAR (info_bar));

  if (setting != info_bar->priv->show_close_button)
    {
      info_bar->priv->show_close_button = setting;
      gtk_widget_set_visible (info_bar->priv->close_button, setting);
      g_object_notify (G_OBJECT (info_bar), "show-close-button");
    }
}

/**
 * gtk_info_bar_get_show_close_button:
 * @info_bar: a #GtkInfoBar
 *
 * Returns whether the widget will display a standard close button.
 *
 * Returns: %TRUE if the widget displays standard close button
 *
 * Since: 3.10
 */
gboolean
gtk_info_bar_get_show_close_button (GtkInfoBar *info_bar)
{
  g_return_val_if_fail (GTK_IS_INFO_BAR (info_bar), FALSE);

  return info_bar->priv->show_close_button;
}