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

   1 /*
   2  * gtkinfobar.c
   3  * This file is part of GTK+
   4  *
   5  * Copyright (C) 2005 - Paolo Maggi
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the
  19  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  20  * Boston, MA 02111-1307, USA.
  21  */
  22
  23 /*
  24  * Modified by the gedit Team, 2005. See the AUTHORS file for a
  25  * list of people on the gtk Team.
  26  * See the gedit ChangeLog files for a list of changes.
  27  *
  28  * Modified by the GTK+ team, 2008-2009.
  29  */
  30
  31
  32 #include "config.h"
  33
  34 #include <stdlib.h>
  35
  36 #include "gtkinfobar.h"
  37 #include "gtkaccessible.h"
  38 #include "gtkbuildable.h"
  39 #include "gtkbox.h"
  40 #include "gtkvbbox.h"
  41 #include "gtklabel.h"
  42 #include "gtkbutton.h"
  43 #include "gtkenums.h"
  44 #include "gtkbindings.h"
  45 #include "gtkdialog.h"
  46 #include "gtkintl.h"
  47 #include "gtkprivate.h"
  48 #include "gtkstock.h"
  49 #include "gdkkeysyms.h"
  50 #include "gtkalias.h"
  51
  52
  53 /**
  54  * SECTION:gtkinfobar
  55  * @short_description: Report important messages to the user
  56  * @include: gtk/gtk.h
  57  * @see_also: #GtkStatusbar, #GtkMessageDialog
  58  *
  59  * #GtkInfoBar is a widget that can be used to show messages to
  60  * the user without showing a dialog. It is often temporarily shown
  61  * at the top or bottom of a document. In contrast to #GtkDialog, which
  62  * has a horizontal action area at the bottom, #GtkInfoBar has a
  63  * vertical action area at the side.
  64  *
  65  * The API of #GtkInfoBar is very similar to #GtkDialog, allowing you
  66  * to add buttons to the action area with gtk_info_bar_add_button() or
  67  * gtk_info_bar_new_with_buttons(). The sensitivity of action widgets
  68  * can be controlled with gtk_info_bar_set_response_sensitive().
  69  * To add widgets to the main content area of a #GtkInfoBar, use
  70  * gtk_info_bar_get_content_area() and add your widgets to the container.
  71  *
  72  * Similar to #GtkMessageDialog, the contents of a #GtkInfoBar can by
  73  * classified as error message, warning, informational message, etc,
  74  * by using gtk_info_bar_set_message_type(). GTK+ uses the message type
  75  * to determine the background color of the message area.
  76  *
  77  * <example>
  78  * <title>Simple GtkInfoBar usage.</title>
  79  * <programlisting>
  80  * /&ast; set up info bar &ast;/
  81  * info_bar = gtk_info_bar_new ();
  82  * gtk_widget_set_no_show_all (info_bar, TRUE);
  83  * message_label = gtk_label_new ("");
  84  * gtk_widget_show (message_label);
  85  * content_area = gtk_info_bar_get_content_area (GTK_INFO_BAR (info_bar));
  86  * gtk_container_add (GTK_CONTAINER (content_area), message_label);
  87  * gtk_info_bar_add_button (GTK_INFO_BAR (info_bar),
  88  *                          GTK_STOCK_OK, GTK_RESPONSE_OK);
  89  * g_signal_connect (info_bar, "response",
  90  *                   G_CALLBACK (gtk_widget_hide), NULL);
  91  * gtk_table_attach (GTK_TABLE (table),
  92  *                   info_bar,
  93  *                   0, 1, 2, 3,
  94  *                   GTK_EXPAND | GTK_FILL,  0,
  95  *                   0,                      0);
  96  *
  97  * /&ast; ... &ast;/
  98  *
  99  * /&ast; show an error message &ast;/
 100  * gtk_label_set_text (GTK_LABEL (message_label), error_message);
 101  * gtk_info_bar_set_message_type (GTK_INFO_BAR (info_bar),
 102  *                                GTK_MESSAGE_ERROR);
 103  * gtk_widget_show (info_bar);
 104  * </programlisting>
 105  * </example>
 106  *
 107  * <refsect2 id="GtkInfoBar-BUILDER-UI">
 108  * <title>GtkInfoBar as GtkBuildable</title>
 109  * <para>
 110  * The GtkInfoBar implementation of the GtkBuildable interface exposes
 111  * the content area and action area as internal children with the names
 112  * "content_area" and "action_area".
 113  * </para>
 114  * <para>
 115  * GtkInfoBar supports a custom &lt;action-widgets&gt; element, which
 116  * can contain multiple &lt;action-widget&gt; elements. The "response"
 117  * attribute specifies a numeric response, and the content of the element
 118  * is the id of widget (which should be a child of the dialogs @action_area).
 119  * </para>
 120  * </refsect2>
 121  */
 122
 123 #define GTK_INFO_BAR_GET_PRIVATE(object) \
 124   (G_TYPE_INSTANCE_GET_PRIVATE ((object), \
 125                                 GTK_TYPE_INFO_BAR, \
 126                                 GtkInfoBarPrivate))
 127
 128 enum
 129 {
 130   PROP_0,
 131   PROP_MESSAGE_TYPE
 132 };
 133
 134 struct _GtkInfoBarPrivate
 135 {
 136   GtkWidget *content_area;
 137   GtkWidget *action_area;
 138
 139   GtkMessageType message_type;
 140 };
 141
 142 typedef struct _ResponseData ResponseData;
 143
 144 struct _ResponseData
 145 {
 146   gint response_id;
 147 };
 148
 149 enum
 150 {
 151   RESPONSE,
 152   CLOSE,
 153   LAST_SIGNAL
 154 };
 155
 156 static guint signals[LAST_SIGNAL];
 157
 158
 159 static void     gtk_info_bar_set_property (GObject        *object,
 160                                            guint           prop_id,
 161                                            const GValue   *value,
 162                                            GParamSpec     *pspec);
 163 static void     gtk_info_bar_get_property (GObject        *object,
 164                                            guint           prop_id,
 165                                            GValue         *value,
 166                                            GParamSpec     *pspec);
 167 static void     gtk_info_bar_style_set    (GtkWidget      *widget,
 168                                            GtkStyle       *prev_style);
 169 static gboolean gtk_info_bar_expose       (GtkWidget      *widget,
 170                                            GdkEventExpose *event);
 171 static void     gtk_info_bar_buildable_interface_init     (GtkBuildableIface *iface);
 172 static GObject *gtk_info_bar_buildable_get_internal_child (GtkBuildable  *buildable,
 173                                                            GtkBuilder    *builder,
 174                                                            const gchar   *childname);
 175 static gboolean  gtk_info_bar_buildable_custom_tag_start   (GtkBuildable  *buildable,
 176                                                             GtkBuilder    *builder,
 177                                                             GObject       *child,
 178                                                             const gchar   *tagname,
 179                                                             GMarkupParser *parser,
 180                                                             gpointer      *data);
 181 static void      gtk_info_bar_buildable_custom_finished    (GtkBuildable  *buildable,
 182                                                             GtkBuilder    *builder,
 183                                                             GObject       *child,
 184                                                             const gchar   *tagname,
 185                                                             gpointer       user_data);
 186
 187
 188 G_DEFINE_TYPE_WITH_CODE (GtkInfoBar, gtk_info_bar, GTK_TYPE_HBOX,
 189                          G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
 190                                                 gtk_info_bar_buildable_interface_init))
 191
 192 static void
 193 gtk_info_bar_set_property (GObject      *object,
 194                            guint         prop_id,
 195                            const GValue *value,
 196                            GParamSpec   *pspec)
 197 {
 198   GtkInfoBar *info_bar;
 199   GtkInfoBarPrivate *priv;
 200
 201   info_bar = GTK_INFO_BAR (object);
 202   priv = GTK_INFO_BAR_GET_PRIVATE (info_bar);
 203
 204   switch (prop_id)
 205     {
 206     case PROP_MESSAGE_TYPE:
 207       gtk_info_bar_set_message_type (info_bar, g_value_get_enum (value));
 208       break;
 209     default:
 210       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 211       break;
 212     }
 213 }
 214
 215 static void
 216 gtk_info_bar_get_property (GObject    *object,
 217                            guint       prop_id,
 218                            GValue     *value,
 219                            GParamSpec *pspec)
 220 {
 221   GtkInfoBar *info_bar;
 222   GtkInfoBarPrivate *priv;
 223
 224   info_bar = GTK_INFO_BAR (object);
 225   priv = GTK_INFO_BAR_GET_PRIVATE (info_bar);
 226
 227   switch (prop_id)
 228     {
 229     case PROP_MESSAGE_TYPE:
 230       g_value_set_enum (value, gtk_info_bar_get_message_type (info_bar));
 231       break;
 232     default:
 233       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 234       break;
 235     }
 236 }
 237
 238 static void
 239 gtk_info_bar_finalize (GObject *object)
 240 {
 241   G_OBJECT_CLASS (gtk_info_bar_parent_class)->finalize (object);
 242 }
 243
 244 static void
 245 response_data_free (gpointer data)
 246 {
 247   g_slice_free (ResponseData, data);
 248 }
 249
 250 static ResponseData *
 251 get_response_data (GtkWidget *widget,
 252                    gboolean   create)
 253 {
 254   ResponseData *ad = g_object_get_data (G_OBJECT (widget),
 255                                         "gtk-info-bar-response-data");
 256
 257   if (ad == NULL && create)
 258     {
 259       ad = g_slice_new (ResponseData);
 260
 261       g_object_set_data_full (G_OBJECT (widget),
 262                               I_("gtk-info-bar-response-data"),
 263                               ad,
 264                               response_data_free);
 265     }
 266
 267   return ad;
 268 }
 269
 270 static GtkWidget *
 271 find_button (GtkInfoBar *info_bar,
 272              gint        response_id)
 273 {
 274   GList *children, *list;
 275   GtkWidget *child = NULL;
 276
 277   children = gtk_container_get_children (GTK_CONTAINER (info_bar->priv->action_area));
 278
 279   for (list = children; list; list = list->next)
 280     {
 281       ResponseData *rd = get_response_data (list->data, FALSE);
 282
 283       if (rd && rd->response_id == response_id)
 284         {
 285           child = list->data;
 286           break;
 287         }
 288     }
 289
 290   g_list_free (children);
 291
 292   return child;
 293 }
 294
 295 static void
 296 gtk_info_bar_close (GtkInfoBar *info_bar)
 297 {
 298   if (!find_button (info_bar, GTK_RESPONSE_CANCEL))
 299     return;
 300
 301   gtk_info_bar_response (GTK_INFO_BAR (info_bar),
 302                          GTK_RESPONSE_CANCEL);
 303 }
 304
 305 static gboolean
 306 gtk_info_bar_expose (GtkWidget      *widget,
 307                      GdkEventExpose *event)
 308 {
 309   GtkInfoBarPrivate *priv = GTK_INFO_BAR_GET_PRIVATE (widget);
 310   gboolean use_tooltip_style;
 311   const char* type_detail[] = {
 312     "infobar-info",
 313     "infobar-warning",
 314     "infobar-question",
 315     "infobar-error",
 316     "infobar"
 317   };
 318   const char *detail;
 319
 320   gtk_widget_style_get (widget,
 321                         "use-tooltip-style", &use_tooltip_style,
 322                         NULL);
 323
 324   if (use_tooltip_style)
 325     detail = "toolbar";
 326   else
 327     detail = type_detail[priv->message_type];
 328
 329   gtk_paint_flat_box (widget->style,
 330                       widget->window,
 331                       GTK_STATE_NORMAL,
 332                       GTK_SHADOW_OUT,
 333                       NULL,
 334                       widget,
 335                       detail,
 336                       widget->allocation.x,
 337                       widget->allocation.y,
 338                       widget->allocation.width + 1,
 339                       widget->allocation.height + 1);
 340
 341   if (GTK_WIDGET_CLASS (gtk_info_bar_parent_class)->expose_event)
 342     GTK_WIDGET_CLASS (gtk_info_bar_parent_class)->expose_event (widget, event);
 343
 344   return FALSE;
 345 }
 346
 347 static void
 348 gtk_info_bar_class_init (GtkInfoBarClass *klass)
 349 {
 350   GtkWidgetClass *widget_class;
 351   GObjectClass *object_class;
 352   GtkBindingSet *binding_set;
 353
 354   widget_class = GTK_WIDGET_CLASS (klass);
 355   object_class = G_OBJECT_CLASS (klass);
 356
 357   object_class->get_property = gtk_info_bar_get_property;
 358   object_class->set_property = gtk_info_bar_set_property;
 359   object_class->finalize = gtk_info_bar_finalize;
 360
 361   widget_class->style_set = gtk_info_bar_style_set;
 362   widget_class->expose_event = gtk_info_bar_expose;
 363
 364   klass->close = gtk_info_bar_close;
 365
 366   /**
 367    * GtkInfoBar:message-type:
 368    *
 369    * The type of the message.
 370    *
 371    * The type is used to determine the colors to use in the info bar.
 372    * The following symbolic color names can by used to customize
 373    * these colors:
 374    * "info_fg_color", "info_bg_color",
 375    * "warning_fg_color", "warning_bg_color",
 376    * "question_fg_color", "question_bg_color",
 377    * "error_fg_color", "error_bg_color",
 378    * "other_fg_color", "other_bg_color".
 379    *
 380    * Since: 2.18
 381    */
 382   g_object_class_install_property (object_class,
 383                                    PROP_MESSAGE_TYPE,
 384                                    g_param_spec_enum ("message-type",
 385                                                       P_("Message Type"),
 386                                                       P_("The type of message"),
 387                                                       GTK_TYPE_MESSAGE_TYPE,
 388                                                       GTK_MESSAGE_OTHER,
 389                                                       GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT));
 390   /**
 391    * GtkInfoBar::response:
 392    * @info_bar: the object on which the signal is emitted
 393    * @response_id: the response ID
 394    *
 395    * Emitted when an action widget is clicked or the application programmer
 396    * calls gtk_dialog_response(). The @response_id depends on which action
 397    * widget was clicked.
 398    *
 399    * Since: 2.18
 400    */
 401   signals[RESPONSE] = g_signal_new (I_("response"),
 402                                     G_OBJECT_CLASS_TYPE (klass),
 403                                     G_SIGNAL_RUN_LAST,
 404                                     G_STRUCT_OFFSET (GtkInfoBarClass, response),
 405                                     NULL, NULL,
 406                                     g_cclosure_marshal_VOID__INT,
 407                                     G_TYPE_NONE, 1,
 408                                     G_TYPE_INT);
 409
 410   /**
 411    * GtkInfoBar::close:
 412    *
 413    * The ::close signal is a
 414    * <link linkend="keybinding-signals">keybinding signal</link>
 415    * which gets emitted when the user uses a keybinding to dismiss
 416    * the info bar.
 417    *
 418    * The default binding for this signal is the Escape key.
 419    *
 420    * Since: 2.18
 421    */
 422   signals[CLOSE] =  g_signal_new (I_("close"),
 423                                   G_OBJECT_CLASS_TYPE (klass),
 424                                   G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
 425                                   G_STRUCT_OFFSET (GtkInfoBarClass, close),
 426                                   NULL, NULL,
 427                                   g_cclosure_marshal_VOID__VOID,
 428                                   G_TYPE_NONE, 0);
 429
 430   /**
 431    * GtkInfoBar:content-area-border:
 432    *
 433    * The width of the border around the content
 434    * content area of the info bar.
 435    *
 436    * Since: 2.18
 437    */
 438   gtk_widget_class_install_style_property (widget_class,
 439                                            g_param_spec_int ("content-area-border",
 440                                                              P_("Content area border"),
 441                                                              P_("Width of border around the content area"),
 442                                                              0,
 443                                                              G_MAXINT,
 444                                                              8,
 445                                                              GTK_PARAM_READABLE));
 446
 447   /**
 448    * GtkInfoBar:content-area-spacing:
 449    *
 450    * The default spacing used between elements of the
 451    * content area of the info bar.
 452    *
 453    * Since: 2.18
 454    */
 455   gtk_widget_class_install_style_property (widget_class,
 456                                            g_param_spec_int ("content-area-spacing",
 457                                                              P_("Content area spacing"),
 458                                                              P_("Spacing between elements of the area"),
 459                                                              0,
 460                                                              G_MAXINT,
 461                                                              16,
 462                                                              GTK_PARAM_READABLE));
 463
 464   /**
 465    * GtkInfoBar:button-spacing:
 466    *
 467    * Spacing between buttons in the action area of the info bar.
 468    *
 469    * Since: 2.18
 470    */
 471   gtk_widget_class_install_style_property (widget_class,
 472                                            g_param_spec_int ("button-spacing",
 473                                                              P_("Button spacing"),
 474                                                              P_("Spacing between buttons"),
 475                                                              0,
 476                                                              G_MAXINT,
 477                                                              6,
 478                                                              GTK_PARAM_READABLE));
 479
 480   /**
 481    * GtkInfoBar:action-area-border:
 482    *
 483    * Width of the border around the action area of the info bar.
 484    *
 485    * Since: 2.18
 486    */
 487   gtk_widget_class_install_style_property (widget_class,
 488                                            g_param_spec_int ("action-area-border",
 489                                                              P_("Action area border"),
 490                                                              P_("Width of border around the action area"),
 491                                                              0,
 492                                                              G_MAXINT,
 493                                                              5,
 494                                                              GTK_PARAM_READABLE));
 495
 496   /**
 497    * GtkInfoBar:use-tooltip-style:
 498    *
 499    * When %TRUE, use the same background/foreground color as #GtkTooltip.
 500    * Otherwise, GTK+ uses #GtkInfoBar::message-type to determine which
 501    * symbolic colors to use.
 502    *
 503    * Since: 2.18
 504    */
 505   gtk_widget_class_install_style_property (widget_class,
 506                                            g_param_spec_boolean ("use-tooltip-style",
 507                                                                  P_("Use tooltip style"),
 508                                                                  P_("Wether to use the same style as GtkTooltip for drawing"),
 509                                                                  TRUE,
 510                                                                  GTK_PARAM_READABLE));
 511
 512   binding_set = gtk_binding_set_by_class (klass);
 513
 514   gtk_binding_entry_add_signal (binding_set, GDK_Escape, 0, "close", 0);
 515
 516   g_type_class_add_private (object_class, sizeof (GtkInfoBarPrivate));
 517 }
 518
 519 static void
 520 gtk_info_bar_update_colors (GtkInfoBar *info_bar)
 521 {
 522   GtkWidget *widget = (GtkWidget*)info_bar;
 523   GtkInfoBarPrivate *priv;
 524   GdkColor default_border_color = { 0, 0xb800, 0xad00, 0x9d00 };
 525   GdkColor default_fill_color = { 0, 0xff00, 0xff00, 0xbf00 };
 526   GdkColor *fg, *bg;
 527   GdkColor sym_fg, sym_bg;
 528   gboolean use_tooltip_style;
 529   GtkStyle *style;
 530   const char* fg_color_name[] = {
 531     "info_fg_color",
 532     "warning_fg_color",
 533     "question_fg_color",
 534     "error_fg_color",
 535     "other_fg_color"
 536   };
 537   const char* bg_color_name[] = {
 538     "info_bg_color",
 539     "warning_bg_color",
 540     "question_bg_color",
 541     "error_bg_color",
 542     "other_bg_color"
 543   };
 544   gboolean has_color;
 545
 546   priv = GTK_INFO_BAR_GET_PRIVATE (info_bar);
 547   style = gtk_widget_get_style (widget);
 548
 549   gtk_widget_style_get (widget,
 550                         "use-tooltip-style", &use_tooltip_style, NULL);
 551
 552   has_color = FALSE;
 553
 554   if (gtk_style_lookup_color (style, fg_color_name[priv->message_type], &sym_fg) &&
 555       gtk_style_lookup_color (style, bg_color_name[priv->message_type], &sym_bg))
 556     {
 557       fg = &sym_fg;
 558       bg = &sym_bg;
 559       has_color = TRUE;
 560     }
 561   else if (use_tooltip_style)
 562     {
 563       style = gtk_rc_get_style_by_paths (gtk_widget_get_settings (widget),
 564                                          "gtk-tooltip", "GtkTooltip", G_TYPE_NONE);
 565       if (style)
 566         {
 567           fg = &style->fg[GTK_STATE_NORMAL];
 568           bg = &style->bg[GTK_STATE_NORMAL];
 569         }
 570       else
 571         {
 572           fg = &default_border_color;
 573           bg = &default_fill_color;
 574         }
 575
 576       has_color = TRUE;
 577     }
 578
 579   if (has_color)
 580     {
 581       if (!gdk_color_equal (bg, &widget->style->bg[GTK_STATE_NORMAL]))
 582         gtk_widget_modify_bg (widget, GTK_STATE_NORMAL, bg);
 583       if (!gdk_color_equal (fg, &widget->style->fg[GTK_STATE_NORMAL]))
 584         gtk_widget_modify_fg (widget, GTK_STATE_NORMAL, fg);
 585     }
 586 }
 587
 588 static void
 589 gtk_info_bar_style_set (GtkWidget *widget,
 590                         GtkStyle  *prev_style)
 591 {
 592   GtkInfoBar *info_bar = GTK_INFO_BAR (widget);
 593   gint button_spacing;
 594   gint action_area_border;
 595   gint content_area_spacing;
 596   gint content_area_border;
 597
 598   gtk_widget_style_get (widget,
 599                         "button-spacing", &button_spacing,
 600                         "action-area-border", &action_area_border,
 601                         "content-area-spacing", &content_area_spacing,
 602                         "content-area-border", &content_area_border,
 603                         NULL);
 604
 605   gtk_box_set_spacing (GTK_BOX (info_bar->priv->action_area), button_spacing);
 606   gtk_container_set_border_width (GTK_CONTAINER (info_bar->priv->action_area),
 607                                   action_area_border);
 608   gtk_box_set_spacing (GTK_BOX (info_bar->priv->content_area), content_area_spacing);
 609   gtk_container_set_border_width (GTK_CONTAINER (info_bar->priv->content_area),
 610                                   content_area_border);
 611
 612   gtk_info_bar_update_colors (info_bar);
 613 }
 614
 615 static void
 616 gtk_info_bar_init (GtkInfoBar *info_bar)
 617 {
 618   GtkWidget *content_area;
 619   GtkWidget *action_area;
 620
 621   gtk_widget_push_composite_child ();
 622
 623   info_bar->priv = GTK_INFO_BAR_GET_PRIVATE (info_bar);
 624
 625   content_area = gtk_hbox_new (FALSE, 0);
 626   gtk_widget_show (content_area);
 627   gtk_box_pack_start (GTK_BOX (info_bar), content_area, TRUE, TRUE, 0);
 628
 629   action_area = gtk_vbutton_box_new ();
 630   gtk_widget_show (action_area);
 631   gtk_button_box_set_layout (GTK_BUTTON_BOX (action_area), GTK_BUTTONBOX_END);
 632   gtk_box_pack_start (GTK_BOX (info_bar), action_area, FALSE, TRUE, 0);
 633
 634   gtk_widget_set_app_paintable (GTK_WIDGET (info_bar), TRUE);
 635
 636   info_bar->priv->content_area = content_area;
 637   info_bar->priv->action_area = action_area;
 638
 639   gtk_widget_pop_composite_child ();
 640 }
 641
 642 static GtkBuildableIface *parent_buildable_iface;
 643
 644 static void
 645 gtk_info_bar_buildable_interface_init (GtkBuildableIface *iface)
 646 {
 647   parent_buildable_iface = g_type_interface_peek_parent (iface);
 648   iface->get_internal_child = gtk_info_bar_buildable_get_internal_child;
 649   iface->custom_tag_start = gtk_info_bar_buildable_custom_tag_start;
 650   iface->custom_finished = gtk_info_bar_buildable_custom_finished;
 651 }
 652
 653 static GObject *
 654 gtk_info_bar_buildable_get_internal_child (GtkBuildable *buildable,
 655                                            GtkBuilder   *builder,
 656                                            const gchar  *childname)
 657 {
 658   if (strcmp (childname, "content_area") == 0)
 659     return G_OBJECT (GTK_INFO_BAR (buildable)->priv->content_area);
 660   else if (strcmp (childname, "action_area") == 0)
 661     return G_OBJECT (GTK_INFO_BAR (buildable)->priv->action_area);
 662
 663   return parent_buildable_iface->get_internal_child (buildable,
 664                                                      builder,
 665                                                      childname);
 666 }
 667
 668 static gint
 669 get_response_for_widget (GtkInfoBar *info_bar,
 670                          GtkWidget  *widget)
 671 {
 672   ResponseData *rd;
 673
 674   rd = get_response_data (widget, FALSE);
 675   if (!rd)
 676     return GTK_RESPONSE_NONE;
 677   else
 678     return rd->response_id;
 679 }
 680
 681 static void
 682 action_widget_activated (GtkWidget  *widget,
 683                          GtkInfoBar *info_bar)
 684 {
 685   gint response_id;
 686
 687   response_id = get_response_for_widget (info_bar, widget);
 688   gtk_info_bar_response (info_bar, response_id);
 689 }
 690
 691 /**
 692  * gtk_info_bar_add_action_widget:
 693  * @info_bar: a #GtkInfoBar
 694  * @child: an activatable widget
 695  * @response_id: response ID for @child
 696  *
 697  * Add an activatable widget to the action area of a #GtkInfoBar,
 698  * connecting a signal handler that will emit the #GtkInfoBar::response
 699  * signal on the message area when the widget is activated. The widget
 700  * is appended to the end of the message areas action area.
 701  *
 702  * Since: 2.18
 703  */
 704 void
 705 gtk_info_bar_add_action_widget (GtkInfoBar *info_bar,
 706                                 GtkWidget  *child,
 707                                 gint        response_id)
 708 {
 709   ResponseData *ad;
 710   guint signal_id;
 711
 712   g_return_if_fail (GTK_IS_INFO_BAR (info_bar));
 713   g_return_if_fail (GTK_IS_WIDGET (child));
 714
 715   ad = get_response_data (child, TRUE);
 716
 717   ad->response_id = response_id;
 718
 719   if (GTK_IS_BUTTON (child))
 720     signal_id = g_signal_lookup ("clicked", GTK_TYPE_BUTTON);
 721   else
 722     signal_id = GTK_WIDGET_GET_CLASS (child)->activate_signal;
 723
 724   if (signal_id)
 725     {
 726       GClosure *closure;
 727
 728       closure = g_cclosure_new_object (G_CALLBACK (action_widget_activated),
 729                                        G_OBJECT (info_bar));
 730       g_signal_connect_closure_by_id (child, signal_id, 0, closure, FALSE);
 731     }
 732   else
 733     g_warning ("Only 'activatable' widgets can be packed into the action area of a GtkInfoBar");
 734
 735   gtk_box_pack_end (GTK_BOX (info_bar->priv->action_area),
 736                     child, FALSE, FALSE, 0);
 737   if (response_id == GTK_RESPONSE_HELP)
 738     gtk_button_box_set_child_secondary (GTK_BUTTON_BOX (info_bar->priv->action_area),
 739                                         child, TRUE);
 740 }
 741
 742 /**
 743  * gtk_info_bar_get_action_area:
 744  * @info_bar: a #GtkInfoBar
 745  *
 746  * Returns the action area of @info_bar.
 747  *
 748  * Returns: the action area.
 749  *
 750  * Since: 2.18
 751  */
 752 GtkWidget*
 753 gtk_info_bar_get_action_area (GtkInfoBar *info_bar)
 754 {
 755   g_return_if_fail (GTK_IS_INFO_BAR (info_bar));
 756
 757   return info_bar->priv->action_area;
 758 }
 759
 760 /**
 761  * gtk_info_bar_get_content_area:
 762  * @info_bar: a #GtkInfoBar
 763  *
 764  * Returns the content area of @info_bar.
 765  *
 766  * Returns: the content area.
 767  *
 768  * Since: 2.18
 769  */
 770 GtkWidget*
 771 gtk_info_bar_get_content_area (GtkInfoBar *info_bar)
 772 {
 773   g_return_if_fail (GTK_IS_INFO_BAR (info_bar));
 774
 775   return info_bar->priv->content_area;
 776 }
 777
 778 /**
 779  * gtk_info_bar_add_button:
 780  * @info_bar: a #GtkInfoBar
 781  * @button_text: text of button, or stock ID
 782  * @response_id: response ID for the button
 783  *
 784  * Adds a button with the given text (or a stock button, if button_text
 785  * is a stock ID) and sets things up so that clicking the button will emit
 786  * the "response" signal with the given response_id. The button is appended
 787  * to the end of the info bars's action area. The button widget is
 788  * returned, but usually you don't need it.
 789  *
 790  * Returns: the button widget that was added
 791  *
 792  * Since: 2.18
 793  */
 794 GtkWidget*
 795 gtk_info_bar_add_button (GtkInfoBar  *info_bar,
 796                          const gchar *button_text,
 797                          gint         response_id)
 798 {
 799   GtkWidget *button;
 800
 801   g_return_val_if_fail (GTK_IS_INFO_BAR (info_bar), NULL);
 802   g_return_val_if_fail (button_text != NULL, NULL);
 803
 804   button = gtk_button_new_from_stock (button_text);
 805
 806   GTK_WIDGET_SET_FLAGS (button, GTK_CAN_DEFAULT);
 807
 808   gtk_widget_show (button);
 809
 810   gtk_info_bar_add_action_widget (info_bar, button, response_id);
 811
 812   return button;
 813 }
 814
 815 static void
 816 add_buttons_valist (GtkInfoBar  *info_bar,
 817                     const gchar *first_button_text,
 818                     va_list      args)
 819 {
 820   const gchar* text;
 821   gint response_id;
 822
 823   g_return_if_fail (GTK_IS_INFO_BAR (info_bar));
 824
 825   if (first_button_text == NULL)
 826     return;
 827
 828   text = first_button_text;
 829   response_id = va_arg (args, gint);
 830
 831   while (text != NULL)
 832     {
 833       gtk_info_bar_add_button (info_bar, text, response_id);
 834
 835       text = va_arg (args, gchar*);
 836       if (text == NULL)
 837         break;
 838
 839       response_id = va_arg (args, int);
 840     }
 841 }
 842
 843 /**
 844  * gtk_info_bar_add_buttons:
 845  * @info_bar: a #GtkInfoBar
 846  * @first_button_text: button text or stock ID
 847  * @...: response ID for first button, then more text-response_id pairs,
 848  *     ending with %NULL
 849  *
 850  * Adds more buttons, same as calling gtk_info_bar_add_button()
 851  * repeatedly. The variable argument list should be %NULL-terminated
 852  * as with gtk_info_bar_new_with_buttons(). Each button must have both
 853  * text and response ID.
 854  *
 855  * Since: 2.18
 856  */
 857 void
 858 gtk_info_bar_add_buttons (GtkInfoBar  *info_bar,
 859                           const gchar *first_button_text,
 860                           ...)
 861 {
 862   va_list args;
 863
 864   va_start (args, first_button_text);
 865   add_buttons_valist (info_bar, first_button_text, args);
 866   va_end (args);
 867 }
 868
 869 /**
 870  * gtk_info_bar_new:
 871  *
 872  * Creates a new #GtkInfoBar object.
 873  *
 874  * Returns: a new #GtkInfoBar object
 875  *
 876  * Since: 2.18
 877  */
 878 GtkWidget *
 879 gtk_info_bar_new (void)
 880 {
 881    return g_object_new (GTK_TYPE_INFO_BAR, NULL);
 882 }
 883
 884 /**
 885  * gtk_info_bar_new_with_buttons:
 886  * @first_button_text: stock ID or text to go in first button, or %NULL
 887  * @...: response ID for first button, then additional buttons, ending
 888  *    with %NULL
 889  *
 890  * Creates a new #GtkInfoBar with buttons. Button text/response ID
 891  * pairs should be listed, with a %NULL pointer ending the list.
 892  * Button text can be either a stock ID such as %GTK_STOCK_OK, or
 893  * some arbitrary text. A response ID can be any positive number,
 894  * or one of the values in the #GtkResponseType enumeration. If the
 895  * user clicks one of these dialog buttons, GtkInfoBar will emit
 896  * the "response" signal with the corresponding response ID.
 897  *
 898  * Returns: a new #GtkInfoBar
 899  */
 900 GtkWidget*
 901 gtk_info_bar_new_with_buttons (const gchar *first_button_text,
 902                                ...)
 903 {
 904   GtkInfoBar *info_bar;
 905   va_list args;
 906
 907   info_bar = GTK_INFO_BAR (gtk_info_bar_new ());
 908
 909   va_start (args, first_button_text);
 910   add_buttons_valist (info_bar, first_button_text, args);
 911   va_end (args);
 912
 913   return GTK_WIDGET (info_bar);
 914 }
 915
 916 /**
 917  * gtk_info_bar_set_response_sensitive:
 918  * @info_bar: a #GtkInfoBar
 919  * @response_id: a response ID
 920  * @setting: TRUE for sensitive
 921  *
 922  * Calls gtk_widget_set_sensitive (widget, setting) for each
 923  * widget in the info bars's action area with the given response_id.
 924  * A convenient way to sensitize/desensitize dialog buttons.
 925  *
 926  * Since: 2.18
 927  */
 928 void
 929 gtk_info_bar_set_response_sensitive (GtkInfoBar *info_bar,
 930                                      gint        response_id,
 931                                      gboolean    setting)
 932 {
 933   GList *children, *list;
 934
 935   g_return_if_fail (GTK_IS_INFO_BAR (info_bar));
 936
 937   children = gtk_container_get_children (GTK_CONTAINER (info_bar->priv->action_area));
 938
 939   for (list = children; list; list = list->next)
 940     {
 941       GtkWidget *widget = list->data;
 942       ResponseData *rd = get_response_data (widget, FALSE);
 943
 944       if (rd && rd->response_id == response_id)
 945         gtk_widget_set_sensitive (widget, setting);
 946     }
 947
 948   g_list_free (children);
 949 }
 950
 951 /**
 952  * gtk_info_bar_set_default_response:
 953  * @info_bar: a #GtkInfoBar
 954  * @response_id: a response ID
 955  *
 956  * Sets the last widget in the info bar's action area with
 957  * the given response_id as the default widget for the dialog.
 958  * Pressing "Enter" normally activates the default widget.
 959  *
 960  * Since: 2.18
 961  */
 962 void
 963 gtk_info_bar_set_default_response (GtkInfoBar *info_bar,
 964                                    gint        response_id)
 965 {
 966   GList *children, *list;
 967
 968   g_return_if_fail (GTK_IS_INFO_BAR (info_bar));
 969
 970   children = gtk_container_get_children (GTK_CONTAINER (info_bar->priv->action_area));
 971
 972   for (list = children; list; list = list->next)
 973     {
 974       GtkWidget *widget = list->data;
 975       ResponseData *rd = get_response_data (widget, FALSE);
 976
 977       if (rd && rd->response_id == response_id)
 978         gtk_widget_grab_default (widget);
 979     }
 980
 981   g_list_free (children);
 982 }
 983
 984 /**
 985  * gtk_info_bar_set_default_response:
 986  * @info_bar: a #GtkInfoBar
 987  * @response_id: a response ID
 988  *
 989  * Emits the 'response' signal with the given @response_id.
 990  *
 991  * Since: 2.18
 992  */
 993 void
 994 gtk_info_bar_response (GtkInfoBar *info_bar,
 995                        gint        response_id)
 996 {
 997   g_return_if_fail (GTK_IS_INFO_BAR (info_bar));
 998
 999   g_signal_emit (info_bar, signals[RESPONSE], 0, response_id);
1000 }
1001
1002 typedef struct
1003 {
1004   gchar *widget_name;
1005   gchar *response_id;
1006 } ActionWidgetInfo;
1007
1008 typedef struct
1009 {
1010   GtkInfoBar *info_bar;
1011   GtkBuilder *builder;
1012   GSList *items;
1013   gchar *response;
1014 } ActionWidgetsSubParserData;
1015
1016 static void
1017 attributes_start_element (GMarkupParseContext  *context,
1018                           const gchar          *element_name,
1019                           const gchar         **names,
1020                           const gchar         **values,
1021                           gpointer              user_data,
1022                           GError              **error)
1023 {
1024   ActionWidgetsSubParserData *parser_data = (ActionWidgetsSubParserData*)user_data;
1025   guint i;
1026
1027   if (strcmp (element_name, "action-widget") == 0)
1028     {
1029       for (i = 0; names[i]; i++)
1030         if (strcmp (names[i], "response") == 0)
1031           parser_data->response = g_strdup (values[i]);
1032     }
1033   else if (strcmp (element_name, "action-widgets") == 0)
1034     return;
1035   else
1036     g_warning ("Unsupported tag for GtkInfoBar: %s\n", element_name);
1037 }
1038
1039 static void
1040 attributes_text_element (GMarkupParseContext  *context,
1041                          const gchar          *text,
1042                          gsize                 text_len,
1043                          gpointer              user_data,
1044                          GError              **error)
1045 {
1046   ActionWidgetsSubParserData *parser_data = (ActionWidgetsSubParserData*)user_data;
1047   ActionWidgetInfo *item;
1048
1049   if (!parser_data->response)
1050     return;
1051
1052   item = g_new (ActionWidgetInfo, 1);
1053   item->widget_name = g_strndup (text, text_len);
1054   item->response_id = parser_data->response;
1055   parser_data->items = g_slist_prepend (parser_data->items, item);
1056   parser_data->response = NULL;
1057 }
1058
1059 static const GMarkupParser attributes_parser =
1060 {
1061   attributes_start_element,
1062   NULL,
1063   attributes_text_element,
1064 };
1065
1066 gboolean
1067 gtk_info_bar_buildable_custom_tag_start (GtkBuildable  *buildable,
1068                                          GtkBuilder    *builder,
1069                                          GObject       *child,
1070                                          const gchar   *tagname,
1071                                          GMarkupParser *parser,
1072                                          gpointer      *data)
1073 {
1074   ActionWidgetsSubParserData *parser_data;
1075
1076   if (child)
1077     return FALSE;
1078
1079   if (strcmp (tagname, "action-widgets") == 0)
1080     {
1081       parser_data = g_slice_new0 (ActionWidgetsSubParserData);
1082       parser_data->info_bar = GTK_INFO_BAR (buildable);
1083       parser_data->items = NULL;
1084
1085       *parser = attributes_parser;
1086       *data = parser_data;
1087       return TRUE;
1088     }
1089
1090   return parent_buildable_iface->custom_tag_start (buildable, builder, child,
1091                                                    tagname, parser, data);
1092 }
1093
1094 static void
1095 gtk_info_bar_buildable_custom_finished (GtkBuildable *buildable,
1096                                         GtkBuilder   *builder,
1097                                         GObject      *child,
1098                                         const gchar  *tagname,
1099                                         gpointer      user_data)
1100 {
1101   GSList *l;
1102   ActionWidgetsSubParserData *parser_data;
1103   GObject *object;
1104   GtkInfoBar *info_bar;
1105   ResponseData *ad;
1106   guint signal_id;
1107
1108   if (strcmp (tagname, "action-widgets"))
1109     {
1110       parent_buildable_iface->custom_finished (buildable, builder, child,
1111                                                tagname, user_data);
1112       return;
1113     }
1114
1115   info_bar = GTK_INFO_BAR (buildable);
1116   parser_data = (ActionWidgetsSubParserData*)user_data;
1117   parser_data->items = g_slist_reverse (parser_data->items);
1118
1119   for (l = parser_data->items; l; l = l->next)
1120     {
1121       ActionWidgetInfo *item = l->data;
1122
1123       object = gtk_builder_get_object (builder, item->widget_name);
1124       if (!object)
1125         {
1126           g_warning ("Unknown object %s specified in action-widgets of %s",
1127                      item->widget_name,
1128                      gtk_buildable_get_name (GTK_BUILDABLE (buildable)));
1129           continue;
1130         }
1131
1132       ad = get_response_data (GTK_WIDGET (object), TRUE);
1133       ad->response_id = atoi (item->response_id);
1134
1135       if (GTK_IS_BUTTON (object))
1136         signal_id = g_signal_lookup ("clicked", GTK_TYPE_BUTTON);
1137       else
1138         signal_id = GTK_WIDGET_GET_CLASS (object)->activate_signal;
1139
1140       if (signal_id)
1141         {
1142           GClosure *closure;
1143
1144           closure = g_cclosure_new_object (G_CALLBACK (action_widget_activated),
1145                                            G_OBJECT (info_bar));
1146           g_signal_connect_closure_by_id (object,
1147                                           signal_id,
1148                                           0,
1149                                           closure,
1150                                           FALSE);
1151         }
1152
1153       if (ad->response_id == GTK_RESPONSE_HELP)
1154         gtk_button_box_set_child_secondary (GTK_BUTTON_BOX (info_bar->priv->action_area),
1155                                             GTK_WIDGET (object), TRUE);
1156
1157       g_free (item->widget_name);
1158       g_free (item->response_id);
1159       g_free (item);
1160     }
1161   g_slist_free (parser_data->items);
1162   g_slice_free (ActionWidgetsSubParserData, parser_data);
1163 }
1164
1165 /**
1166  * gtk_info_bar_set_message_type:
1167  * @info_bar: a #GtkInfoBar
1168  * @message_type: a #GtkMessageType
1169  *
1170  * Sets the message type of the message area.
1171  * GTK+ uses this type to determine what color to use
1172  * when drawing the message area.
1173  *
1174  * Since: 2.18
1175  */
1176 void
1177 gtk_info_bar_set_message_type (GtkInfoBar     *info_bar,
1178                                GtkMessageType  message_type)
1179 {
1180   GtkInfoBarPrivate *priv;
1181   AtkObject *atk_obj;
1182
1183   g_return_if_fail (GTK_IS_INFO_BAR (info_bar));
1184
1185   priv = GTK_INFO_BAR_GET_PRIVATE (info_bar);
1186
1187   if (priv->message_type != message_type)
1188     {
1189       priv->message_type = message_type;
1190
1191       gtk_info_bar_update_colors (info_bar);
1192       gtk_widget_queue_draw (GTK_WIDGET (info_bar));
1193
1194       atk_obj = gtk_widget_get_accessible (GTK_WIDGET (info_bar));
1195       if (GTK_IS_ACCESSIBLE (atk_obj))
1196         {
1197           GtkStockItem item;
1198           const char *stock_id = NULL;
1199
1200           atk_object_set_role (atk_obj, ATK_ROLE_ALERT);
1201
1202           switch (message_type)
1203             {
1204             case GTK_MESSAGE_INFO:
1205               stock_id = GTK_STOCK_DIALOG_INFO;
1206               break;
1207
1208             case GTK_MESSAGE_QUESTION:
1209               stock_id = GTK_STOCK_DIALOG_QUESTION;
1210               break;
1211
1212             case GTK_MESSAGE_WARNING:
1213               stock_id = GTK_STOCK_DIALOG_WARNING;
1214               break;
1215
1216             case GTK_MESSAGE_ERROR:
1217               stock_id = GTK_STOCK_DIALOG_ERROR;
1218               break;
1219
1220             case GTK_MESSAGE_OTHER:
1221               break;
1222
1223             default:
1224               g_warning ("Unknown GtkMessageType %u", message_type);
1225               break;
1226             }
1227
1228           if (stock_id)
1229             {
1230               gtk_stock_lookup (stock_id, &item);
1231               atk_object_set_name (atk_obj, item.label);
1232             }
1233         }
1234
1235       g_object_notify (G_OBJECT (info_bar), "message-type");
1236     }
1237 }
1238
1239 /**
1240  * gtk_info_bar_get_message_type:
1241  * @info_bar: a #GtkInfoBar
1242  *
1243  * Returns the message type of the message area.
1244  *
1245  * Returns: the message type of the message area.
1246  *
1247  * Since: 2.18
1248  */
1249 GtkMessageType
1250 gtk_info_bar_get_message_type (GtkInfoBar *info_bar)
1251 {
1252   GtkInfoBarPrivate *priv;
1253
1254   g_return_if_fail (GTK_IS_INFO_BAR (info_bar));
1255
1256   priv = GTK_INFO_BAR_GET_PRIVATE (info_bar);
1257
1258   return priv->message_type;
1259 }
1260
1261
1262 #define __GTK_INFO_BAR_C__
1263 #include "gtkaliasdef.c"