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

   1 /*
   2  * GTK - The GIMP Toolkit
   3  * Copyright (C) 1998, 1999 Red Hat, Inc.
   4  * All rights reserved.
   5  *
   6  * This Library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Library General Public License as
   8  * published by the Free Software Foundation; either version 2 of the
   9  * License, or (at your option) any later version.
  10  *
  11  * This Library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Library General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Library General Public
  17  * License along with the Gnome Library; see the file COPYING.LIB.  If not,
  18  * write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  19  * Boston, MA 02111-1307, USA.
  20  */
  21
  22 /*
  23  * Author: James Henstridge <james@daa.com.au>
  24  *
  25  * Modified by the GTK+ Team and others 2003.  See the AUTHORS
  26  * file for a list of people on the GTK+ Team.  See the ChangeLog
  27  * files for a list of changes.  These files are distributed with
  28  * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
  29  */
  30
  31 #include <config.h>
  32
  33 #include "gtkaction.h"
  34 #include "gtkactiongroup.h"
  35 #include "gtkaccellabel.h"
  36 #include "gtkbutton.h"
  37 #include "gtkiconfactory.h"
  38 #include "gtkimage.h"
  39 #include "gtkimagemenuitem.h"
  40 #include "gtkintl.h"
  41 #include "gtklabel.h"
  42 #include "gtkmarshalers.h"
  43 #include "gtkmenuitem.h"
  44 #include "gtkstock.h"
  45 #include "gtktearoffmenuitem.h"
  46 #include "gtktoolbutton.h"
  47 #include "gtktoolbar.h"
  48 #include "gtkprivate.h"
  49 #include "gtkbuildable.h"
  50 #include "gtkalias.h"
  51
  52
  53 #define GTK_ACTION_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GTK_TYPE_ACTION, GtkActionPrivate))
  54
  55 struct _GtkActionPrivate
  56 {
  57   const gchar *name; /* interned */
  58   gchar *label;
  59   gchar *short_label;
  60   gchar *tooltip;
  61   gchar *stock_id; /* stock icon */
  62   gchar *icon_name; /* themed icon */
  63
  64   guint sensitive          : 1;
  65   guint visible            : 1;
  66   guint label_set          : 1; /* these two used so we can set label */
  67   guint short_label_set    : 1; /* based on stock id */
  68   guint visible_horizontal : 1;
  69   guint visible_vertical   : 1;
  70   guint is_important       : 1;
  71   guint hide_if_empty      : 1;
  72   guint visible_overflown  : 1;
  73
  74   /* accelerator */
  75   guint          accel_count;
  76   GtkAccelGroup *accel_group;
  77   GClosure      *accel_closure;
  78   GQuark         accel_quark;
  79
  80   GtkActionGroup *action_group;
  81
  82   /* list of proxy widgets */
  83   GSList *proxies;
  84 };
  85
  86 enum
  87 {
  88   ACTIVATE,
  89   LAST_SIGNAL
  90 };
  91
  92 enum
  93 {
  94   PROP_0,
  95   PROP_NAME,
  96   PROP_LABEL,
  97   PROP_SHORT_LABEL,
  98   PROP_TOOLTIP,
  99   PROP_STOCK_ID,
 100   PROP_ICON_NAME,
 101   PROP_VISIBLE_HORIZONTAL,
 102   PROP_VISIBLE_VERTICAL,
 103   PROP_VISIBLE_OVERFLOWN,
 104   PROP_IS_IMPORTANT,
 105   PROP_HIDE_IF_EMPTY,
 106   PROP_SENSITIVE,
 107   PROP_VISIBLE,
 108   PROP_ACTION_GROUP
 109 };
 110
 111 /* GtkBuildable */
 112 static void gtk_action_buildable_init             (GtkBuildableIface *iface);
 113 static void gtk_action_buildable_set_name         (GtkBuildable *buildable,
 114                                                    const gchar  *name);
 115 static const gchar* gtk_action_buildable_get_name (GtkBuildable *buildable);
 116
 117 G_DEFINE_TYPE_WITH_CODE (GtkAction, gtk_action, G_TYPE_OBJECT,
 118                          G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
 119                                                 gtk_action_buildable_init))
 120
 121
 122 static GQuark      accel_path_id  = 0;
 123 static GQuark      quark_gtk_action_proxy  = 0;
 124 static const gchar accel_path_key[] = "GtkAction::accel_path";
 125 static const gchar gtk_action_proxy_key[] = "gtk-action";
 126
 127 static void gtk_action_finalize     (GObject *object);
 128 static void gtk_action_set_property (GObject         *object,
 129                                      guint            prop_id,
 130                                      const GValue    *value,
 131                                      GParamSpec      *pspec);
 132 static void gtk_action_get_property (GObject         *object,
 133                                      guint            prop_id,
 134                                      GValue          *value,
 135                                      GParamSpec      *pspec);
 136 static void gtk_action_set_action_group (GtkAction      *action,
 137                                          GtkActionGroup *action_group);
 138 static void gtk_action_set_is_important (GtkAction      *action,
 139                                          gboolean        is_important);
 140 static void gtk_action_set_label        (GtkAction      *action,
 141                                          const gchar    *label);
 142 static void gtk_action_set_short_label  (GtkAction      *action,
 143                                          const gchar    *label);
 144 static void gtk_action_set_visible_horizontal (GtkAction *action,
 145                                                gboolean   visible_horizontal);
 146 static void gtk_action_set_visible_vertical   (GtkAction *action,
 147                                                gboolean   visible_vertical);
 148 static void gtk_action_set_tooltip      (GtkAction      *action,
 149                                          const gchar    *tooltip);
 150 static void gtk_action_set_stock_id     (GtkAction      *action,
 151                                          const gchar    *stock_id);
 152 static void gtk_action_set_icon_name     (GtkAction     *action,
 153                                          const gchar    *icon_name);
 154 static void gtk_action_sync_tooltip     (GtkAction      *action,
 155                                          GtkWidget      *proxy);
 156
 157 static GtkWidget *create_menu_item    (GtkAction *action);
 158 static GtkWidget *create_tool_item    (GtkAction *action);
 159 static void       connect_proxy       (GtkAction *action,
 160                                        GtkWidget *proxy);
 161 static void       disconnect_proxy    (GtkAction *action,
 162                                        GtkWidget *proxy);
 163
 164 static void       closure_accel_activate (GClosure     *closure,
 165                                           GValue       *return_value,
 166                                           guint         n_param_values,
 167                                           const GValue *param_values,
 168                                           gpointer      invocation_hint,
 169                                           gpointer      marshal_data);
 170
 171 static guint         action_signals[LAST_SIGNAL] = { 0 };
 172
 173
 174 static void
 175 gtk_action_class_init (GtkActionClass *klass)
 176 {
 177   GObjectClass *gobject_class;
 178
 179   accel_path_id = g_quark_from_static_string (accel_path_key);
 180   quark_gtk_action_proxy = g_quark_from_static_string (gtk_action_proxy_key);
 181
 182   gobject_class = G_OBJECT_CLASS (klass);
 183
 184   gobject_class->finalize     = gtk_action_finalize;
 185   gobject_class->set_property = gtk_action_set_property;
 186   gobject_class->get_property = gtk_action_get_property;
 187
 188   klass->activate = NULL;
 189
 190   klass->create_menu_item = create_menu_item;
 191   klass->create_tool_item = create_tool_item;
 192   klass->create_menu = NULL;
 193   klass->connect_proxy = connect_proxy;
 194   klass->disconnect_proxy = disconnect_proxy;
 195
 196   klass->menu_item_type = GTK_TYPE_IMAGE_MENU_ITEM;
 197   klass->toolbar_item_type = GTK_TYPE_TOOL_BUTTON;
 198
 199   g_object_class_install_property (gobject_class,
 200                                    PROP_NAME,
 201                                    g_param_spec_string ("name",
 202                                                         P_("Name"),
 203                                                         P_("A unique name for the action."),
 204                                                         NULL,
 205                                                         GTK_PARAM_READWRITE |
 206                                                         G_PARAM_CONSTRUCT_ONLY));
 207
 208   /**
 209    * GtkAction:label:
 210    *
 211    * The label used for menu items and buttons that activate
 212    * this action. If the label is %NULL, GTK+ uses the stock
 213    * label specified via the stock-id property.
 214    */
 215   g_object_class_install_property (gobject_class,
 216                                    PROP_LABEL,
 217                                    g_param_spec_string ("label",
 218                                                         P_("Label"),
 219                                                         P_("The label used for menu items and buttons "
 220                                                            "that activate this action."),
 221                                                         NULL,
 222                                                         GTK_PARAM_READWRITE));
 223   g_object_class_install_property (gobject_class,
 224                                    PROP_SHORT_LABEL,
 225                                    g_param_spec_string ("short-label",
 226                                                         P_("Short label"),
 227                                                         P_("A shorter label that may be used on toolbar buttons."),
 228                                                         NULL,
 229                                                         GTK_PARAM_READWRITE));
 230   g_object_class_install_property (gobject_class,
 231                                    PROP_TOOLTIP,
 232                                    g_param_spec_string ("tooltip",
 233                                                         P_("Tooltip"),
 234                                                         P_("A tooltip for this action."),
 235                                                         NULL,
 236                                                         GTK_PARAM_READWRITE));
 237   g_object_class_install_property (gobject_class,
 238                                    PROP_STOCK_ID,
 239                                    g_param_spec_string ("stock-id",
 240                                                         P_("Stock Icon"),
 241                                                         P_("The stock icon displayed in widgets representing "
 242                                                            "this action."),
 243                                                         NULL,
 244                                                         GTK_PARAM_READWRITE));
 245   /**
 246    * GtkAction:icon-name:
 247    *
 248    * The name of the icon from the icon theme.
 249    * Note that the stock icon is preferred, if
 250    * the ::stock-id property holds the id of an
 251    * existing stock icon.
 252    *
 253    * Since: 2.10
 254    */
 255   g_object_class_install_property (gobject_class,
 256                                    PROP_ICON_NAME,
 257                                    g_param_spec_string ("icon-name",
 258                                                         P_("Icon Name"),
 259                                                         P_("The name of the icon from the icon theme"),
 260                                                         NULL,
 261                                                         GTK_PARAM_READWRITE));
 262   g_object_class_install_property (gobject_class,
 263                                    PROP_VISIBLE_HORIZONTAL,
 264                                    g_param_spec_boolean ("visible-horizontal",
 265                                                          P_("Visible when horizontal"),
 266                                                          P_("Whether the toolbar item is visible when the toolbar "
 267                                                             "is in a horizontal orientation."),
 268                                                          TRUE,
 269                                                          GTK_PARAM_READWRITE));
 270   /**
 271    * GtkAction:visible-overflown:
 272    *
 273    * When %TRUE, toolitem proxies for this action are represented in the
 274    * toolbar overflow menu.
 275    *
 276    * Since: 2.6
 277    */
 278   g_object_class_install_property (gobject_class,
 279                                    PROP_VISIBLE_OVERFLOWN,
 280                                    g_param_spec_boolean ("visible-overflown",
 281                                                          P_("Visible when overflown"),
 282                                                          P_("When TRUE, toolitem proxies for this action "
 283                                                             "are represented in the toolbar overflow menu."),
 284                                                          TRUE,
 285                                                          GTK_PARAM_READWRITE));
 286   g_object_class_install_property (gobject_class,
 287                                    PROP_VISIBLE_VERTICAL,
 288                                    g_param_spec_boolean ("visible-vertical",
 289                                                          P_("Visible when vertical"),
 290                                                          P_("Whether the toolbar item is visible when the toolbar "
 291                                                             "is in a vertical orientation."),
 292                                                          TRUE,
 293                                                          GTK_PARAM_READWRITE));
 294   g_object_class_install_property (gobject_class,
 295                                    PROP_IS_IMPORTANT,
 296                                    g_param_spec_boolean ("is-important",
 297                                                          P_("Is important"),
 298                                                          P_("Whether the action is considered important. "
 299                                                             "When TRUE, toolitem proxies for this action "
 300                                                             "show text in GTK_TOOLBAR_BOTH_HORIZ mode."),
 301                                                          FALSE,
 302                                                          GTK_PARAM_READWRITE));
 303   g_object_class_install_property (gobject_class,
 304                                    PROP_HIDE_IF_EMPTY,
 305                                    g_param_spec_boolean ("hide-if-empty",
 306                                                          P_("Hide if empty"),
 307                                                          P_("When TRUE, empty menu proxies for this action are hidden."),
 308                                                          TRUE,
 309                                                          GTK_PARAM_READWRITE));
 310   g_object_class_install_property (gobject_class,
 311                                    PROP_SENSITIVE,
 312                                    g_param_spec_boolean ("sensitive",
 313                                                          P_("Sensitive"),
 314                                                          P_("Whether the action is enabled."),
 315                                                          TRUE,
 316                                                          GTK_PARAM_READWRITE));
 317   g_object_class_install_property (gobject_class,
 318                                    PROP_VISIBLE,
 319                                    g_param_spec_boolean ("visible",
 320                                                          P_("Visible"),
 321                                                          P_("Whether the action is visible."),
 322                                                          TRUE,
 323                                                          GTK_PARAM_READWRITE));
 324   g_object_class_install_property (gobject_class,
 325                                    PROP_ACTION_GROUP,
 326                                    g_param_spec_object ("action-group",
 327                                                          P_("Action Group"),
 328                                                          P_("The GtkActionGroup this GtkAction is associated with, or NULL (for internal use)."),
 329                                                          GTK_TYPE_ACTION_GROUP,
 330                                                          GTK_PARAM_READWRITE));
 331
 332   /**
 333    * GtkAction::activate:
 334    * @action: the #GtkAction
 335    *
 336    * The "activate" signal is emitted when the action is activated.
 337    *
 338    * Since: 2.4
 339    */
 340   action_signals[ACTIVATE] =
 341     g_signal_new (I_("activate"),
 342                   G_OBJECT_CLASS_TYPE (klass),
 343                   G_SIGNAL_RUN_FIRST | G_SIGNAL_NO_RECURSE,
 344                   G_STRUCT_OFFSET (GtkActionClass, activate),  NULL, NULL,
 345                   g_cclosure_marshal_VOID__VOID,
 346                   G_TYPE_NONE, 0);
 347
 348   g_type_class_add_private (gobject_class, sizeof (GtkActionPrivate));
 349 }
 350
 351
 352 static void
 353 gtk_action_init (GtkAction *action)
 354 {
 355   action->private_data = GTK_ACTION_GET_PRIVATE (action);
 356
 357   action->private_data->name = NULL;
 358   action->private_data->label = NULL;
 359   action->private_data->short_label = NULL;
 360   action->private_data->tooltip = NULL;
 361   action->private_data->stock_id = NULL;
 362   action->private_data->icon_name = NULL;
 363   action->private_data->visible_horizontal = TRUE;
 364   action->private_data->visible_vertical   = TRUE;
 365   action->private_data->visible_overflown  = TRUE;
 366   action->private_data->is_important = FALSE;
 367   action->private_data->hide_if_empty = TRUE;
 368
 369   action->private_data->sensitive = TRUE;
 370   action->private_data->visible = TRUE;
 371
 372   action->private_data->label_set = FALSE;
 373   action->private_data->short_label_set = FALSE;
 374
 375   action->private_data->accel_count = 0;
 376   action->private_data->accel_group = NULL;
 377   action->private_data->accel_quark = 0;
 378   action->private_data->accel_closure =
 379     g_closure_new_object (sizeof (GClosure), G_OBJECT (action));
 380   g_closure_set_marshal (action->private_data->accel_closure,
 381                          closure_accel_activate);
 382   g_closure_ref (action->private_data->accel_closure);
 383   g_closure_sink (action->private_data->accel_closure);
 384
 385   action->private_data->action_group = NULL;
 386
 387   action->private_data->proxies = NULL;
 388 }
 389
 390 static void
 391 gtk_action_buildable_init (GtkBuildableIface *iface)
 392 {
 393   iface->set_name = gtk_action_buildable_set_name;
 394   iface->get_name = gtk_action_buildable_get_name;
 395 }
 396
 397 static void
 398 gtk_action_buildable_set_name (GtkBuildable *buildable,
 399                                const gchar  *name)
 400 {
 401   GtkAction *action = GTK_ACTION (buildable);
 402
 403   action->private_data->name = g_intern_string (name);
 404 }
 405
 406 static const gchar *
 407 gtk_action_buildable_get_name (GtkBuildable *buildable)
 408 {
 409   GtkAction *action = GTK_ACTION (buildable);
 410
 411   return action->private_data->name;
 412 }
 413
 414 /**
 415  * gtk_action_new:
 416  * @name: A unique name for the action
 417  * @label: the label displayed in menu items and on buttons
 418  * @tooltip: a tooltip for the action
 419  * @stock_id: the stock icon to display in widgets representing the action
 420  *
 421  * Creates a new #GtkAction object. To add the action to a
 422  * #GtkActionGroup and set the accelerator for the action,
 423  * call gtk_action_group_add_action_with_accel().
 424  * See <xref linkend="XML-UI"/> for information on allowed action
 425  * names.
 426  *
 427  * Return value: a new #GtkAction
 428  *
 429  * Since: 2.4
 430  */
 431 GtkAction *
 432 gtk_action_new (const gchar *name,
 433                 const gchar *label,
 434                 const gchar *tooltip,
 435                 const gchar *stock_id)
 436 {
 437   GtkAction *action;
 438
 439   action = g_object_new (GTK_TYPE_ACTION,
 440                          "name", name,
 441                          "label", label,
 442                          "tooltip", tooltip,
 443                          "stock-id", stock_id,
 444                          NULL);
 445
 446   return action;
 447 }
 448
 449 static void
 450 gtk_action_finalize (GObject *object)
 451 {
 452   GtkAction *action;
 453   action = GTK_ACTION (object);
 454
 455   g_free (action->private_data->label);
 456   g_free (action->private_data->short_label);
 457   g_free (action->private_data->tooltip);
 458   g_free (action->private_data->stock_id);
 459   g_free (action->private_data->icon_name);
 460
 461   g_closure_unref (action->private_data->accel_closure);
 462   if (action->private_data->accel_group)
 463     g_object_unref (action->private_data->accel_group);
 464
 465   G_OBJECT_CLASS (gtk_action_parent_class)->finalize (object);
 466 }
 467
 468 static void
 469 gtk_action_set_property (GObject         *object,
 470                          guint            prop_id,
 471                          const GValue    *value,
 472                          GParamSpec      *pspec)
 473 {
 474   GtkAction *action;
 475
 476   action = GTK_ACTION (object);
 477
 478   switch (prop_id)
 479     {
 480     case PROP_NAME:
 481       action->private_data->name = g_intern_string (g_value_get_string (value));
 482       break;
 483     case PROP_LABEL:
 484       gtk_action_set_label (action, g_value_get_string (value));
 485       break;
 486     case PROP_SHORT_LABEL:
 487       gtk_action_set_short_label (action, g_value_get_string (value));
 488       break;
 489     case PROP_TOOLTIP:
 490       gtk_action_set_tooltip (action, g_value_get_string (value));
 491       break;
 492     case PROP_STOCK_ID:
 493       gtk_action_set_stock_id (action, g_value_get_string (value));
 494       break;
 495     case PROP_ICON_NAME:
 496       gtk_action_set_icon_name (action, g_value_get_string (value));
 497       break;
 498     case PROP_VISIBLE_HORIZONTAL:
 499       gtk_action_set_visible_horizontal (action, g_value_get_boolean (value));
 500       break;
 501     case PROP_VISIBLE_VERTICAL:
 502       gtk_action_set_visible_vertical (action, g_value_get_boolean (value));
 503       break;
 504     case PROP_VISIBLE_OVERFLOWN:
 505       action->private_data->visible_overflown = g_value_get_boolean (value);
 506       break;
 507     case PROP_IS_IMPORTANT:
 508       gtk_action_set_is_important (action, g_value_get_boolean (value));
 509       break;
 510     case PROP_HIDE_IF_EMPTY:
 511       action->private_data->hide_if_empty = g_value_get_boolean (value);
 512       break;
 513     case PROP_SENSITIVE:
 514       gtk_action_set_sensitive (action, g_value_get_boolean (value));
 515       break;
 516     case PROP_VISIBLE:
 517       gtk_action_set_visible (action, g_value_get_boolean (value));
 518       break;
 519     case PROP_ACTION_GROUP:
 520       gtk_action_set_action_group (action, g_value_get_object (value));
 521       break;
 522     default:
 523       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 524       break;
 525     }
 526 }
 527
 528 static void
 529 gtk_action_get_property (GObject    *object,
 530                          guint       prop_id,
 531                          GValue     *value,
 532                          GParamSpec *pspec)
 533 {
 534   GtkAction *action;
 535
 536   action = GTK_ACTION (object);
 537
 538   switch (prop_id)
 539     {
 540     case PROP_NAME:
 541       g_value_set_static_string (value, action->private_data->name);
 542       break;
 543     case PROP_LABEL:
 544       g_value_set_string (value, action->private_data->label);
 545       break;
 546     case PROP_SHORT_LABEL:
 547       g_value_set_string (value, action->private_data->short_label);
 548       break;
 549     case PROP_TOOLTIP:
 550       g_value_set_string (value, action->private_data->tooltip);
 551       break;
 552     case PROP_STOCK_ID:
 553       g_value_set_string (value, action->private_data->stock_id);
 554       break;
 555     case PROP_ICON_NAME:
 556       g_value_set_string (value, action->private_data->icon_name);
 557       break;
 558     case PROP_VISIBLE_HORIZONTAL:
 559       g_value_set_boolean (value, action->private_data->visible_horizontal);
 560       break;
 561     case PROP_VISIBLE_VERTICAL:
 562       g_value_set_boolean (value, action->private_data->visible_vertical);
 563       break;
 564     case PROP_VISIBLE_OVERFLOWN:
 565       g_value_set_boolean (value, action->private_data->visible_overflown);
 566       break;
 567     case PROP_IS_IMPORTANT:
 568       g_value_set_boolean (value, action->private_data->is_important);
 569       break;
 570     case PROP_HIDE_IF_EMPTY:
 571       g_value_set_boolean (value, action->private_data->hide_if_empty);
 572       break;
 573     case PROP_SENSITIVE:
 574       g_value_set_boolean (value, action->private_data->sensitive);
 575       break;
 576     case PROP_VISIBLE:
 577       g_value_set_boolean (value, action->private_data->visible);
 578       break;
 579     case PROP_ACTION_GROUP:
 580       g_value_set_object (value, action->private_data->action_group);
 581       break;
 582     default:
 583       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 584       break;
 585     }
 586 }
 587
 588 static GtkWidget *
 589 create_menu_item (GtkAction *action)
 590 {
 591   GType menu_item_type;
 592
 593   menu_item_type = GTK_ACTION_GET_CLASS (action)->menu_item_type;
 594
 595   return g_object_new (menu_item_type, NULL);
 596 }
 597
 598 static GtkWidget *
 599 create_tool_item (GtkAction *action)
 600 {
 601   GType toolbar_item_type;
 602
 603   toolbar_item_type = GTK_ACTION_GET_CLASS (action)->toolbar_item_type;
 604
 605   return g_object_new (toolbar_item_type, NULL);
 606 }
 607
 608 static void
 609 remove_proxy (GtkAction *action,
 610               GtkWidget *proxy)
 611 {
 612   if (GTK_IS_MENU_ITEM (proxy))
 613     gtk_action_disconnect_accelerator (action);
 614
 615   action->private_data->proxies = g_slist_remove (action->private_data->proxies, proxy);
 616 }
 617
 618 /**
 619  * _gtk_action_sync_menu_visible:
 620  * @action: a #GtkAction, or %NULL to determine the action from @proxy
 621  * @proxy: a proxy menu item
 622  * @empty: whether the submenu attached to @proxy is empty
 623  *
 624  * Updates the visibility of @proxy from the visibility of @action
 625  * according to the following rules:
 626  * <itemizedlist>
 627  * <listitem><para>if @action is invisible, @proxy is too
 628  * </para></listitem>
 629  * <listitem><para>if @empty is %TRUE, hide @proxy unless the "hide-if-empty"
 630  *   property of @action indicates otherwise
 631  * </para></listitem>
 632  * </itemizedlist>
 633  *
 634  * This function is used in the implementation of #GtkUIManager.
 635  **/
 636 void
 637 _gtk_action_sync_menu_visible (GtkAction *action,
 638                                GtkWidget *proxy,
 639                                gboolean   empty)
 640 {
 641   gboolean visible, hide_if_empty;
 642
 643   g_return_if_fail (GTK_IS_MENU_ITEM (proxy));
 644   g_return_if_fail (action == NULL || GTK_IS_ACTION (action));
 645
 646   if (action == NULL)
 647     action = g_object_get_qdata (G_OBJECT (proxy), quark_gtk_action_proxy);
 648
 649   visible = gtk_action_is_visible (action);
 650   hide_if_empty = action->private_data->hide_if_empty;
 651
 652   if (visible && !(empty && hide_if_empty))
 653     gtk_widget_show (proxy);
 654   else
 655     gtk_widget_hide (proxy);
 656 }
 657
 658 gboolean _gtk_menu_is_empty (GtkWidget *menu);
 659
 660 static gboolean
 661 gtk_action_create_menu_proxy (GtkToolItem *tool_item,
 662                               GtkAction   *action)
 663 {
 664   GtkWidget *menu_item;
 665
 666   if (action->private_data->visible_overflown)
 667     {
 668       menu_item = gtk_action_create_menu_item (action);
 669
 670       g_object_ref_sink (menu_item);
 671
 672       gtk_tool_item_set_proxy_menu_item (tool_item,
 673                                          "gtk-action-menu-item", menu_item);
 674       g_object_unref (menu_item);
 675     }
 676   else
 677     gtk_tool_item_set_proxy_menu_item (tool_item,
 678                                        "gtk-action-menu-item", NULL);
 679
 680   return TRUE;
 681 }
 682
 683 static void
 684 connect_proxy (GtkAction     *action,
 685                GtkWidget     *proxy)
 686 {
 687   g_object_ref (action);
 688   g_object_set_qdata_full (G_OBJECT (proxy), quark_gtk_action_proxy, action,
 689                            g_object_unref);
 690
 691   /* add this widget to the list of proxies */
 692   action->private_data->proxies = g_slist_prepend (action->private_data->proxies, proxy);
 693   g_object_weak_ref (G_OBJECT (proxy), (GWeakNotify)remove_proxy, action);
 694
 695   gtk_widget_set_sensitive (proxy, gtk_action_is_sensitive (action));
 696   if (gtk_action_is_visible (action))
 697     gtk_widget_show (proxy);
 698   else
 699     gtk_widget_hide (proxy);
 700   gtk_widget_set_no_show_all (proxy, TRUE);
 701
 702   if (GTK_IS_MENU_ITEM (proxy))
 703     {
 704       GtkWidget *label;
 705       /* menu item specific synchronisers ... */
 706
 707       if (action->private_data->accel_quark)
 708         {
 709           gtk_action_connect_accelerator (action);
 710           gtk_menu_item_set_accel_path (GTK_MENU_ITEM (proxy),
 711                                         g_quark_to_string (action->private_data->accel_quark));
 712         }
 713
 714       label = GTK_BIN (proxy)->child;
 715
 716       /* make sure label is a label */
 717       if (label && !GTK_IS_LABEL (label))
 718         {
 719           gtk_container_remove (GTK_CONTAINER (proxy), label);
 720           label = NULL;
 721         }
 722
 723       if (!label)
 724         label = g_object_new (GTK_TYPE_ACCEL_LABEL,
 725                               "use-underline", TRUE,
 726                               "xalign", 0.0,
 727                               "visible", TRUE,
 728                               "parent", proxy,
 729                               NULL);
 730
 731       if (GTK_IS_ACCEL_LABEL (label) && action->private_data->accel_quark)
 732         g_object_set (label,
 733                       "accel-closure", action->private_data->accel_closure,
 734                       NULL);
 735
 736       gtk_label_set_label (GTK_LABEL (label), action->private_data->label);
 737
 738       if (GTK_IS_IMAGE_MENU_ITEM (proxy))
 739         {
 740           GtkWidget *image;
 741
 742           image = gtk_image_menu_item_get_image (GTK_IMAGE_MENU_ITEM (proxy));
 743           if (image && !GTK_IS_IMAGE (image))
 744             {
 745               gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (proxy), NULL);
 746               image = NULL;
 747             }
 748           if (!image)
 749             {
 750               image = gtk_image_new ();
 751               gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (proxy),
 752                                              image);
 753               gtk_widget_show (image);
 754             }
 755
 756           if (action->private_data->stock_id &&
 757               gtk_icon_factory_lookup_default (action->private_data->stock_id))
 758             gtk_image_set_from_stock (GTK_IMAGE (image),
 759                                       action->private_data->stock_id, GTK_ICON_SIZE_MENU);
 760           else if (action->private_data->icon_name)
 761             gtk_image_set_from_icon_name (GTK_IMAGE (image),
 762                                           action->private_data->icon_name, GTK_ICON_SIZE_MENU);
 763         }
 764
 765       if (gtk_menu_item_get_submenu (GTK_MENU_ITEM (proxy)) == NULL)
 766         g_signal_connect_object (proxy, "activate",
 767                                  G_CALLBACK (gtk_action_activate), action,
 768                                  G_CONNECT_SWAPPED);
 769
 770     }
 771   else if (GTK_IS_TOOL_ITEM (proxy))
 772     {
 773       /* toolbar button specific synchronisers ... */
 774       if (GTK_IS_TOOL_BUTTON (proxy))
 775         {
 776           g_object_set (proxy,
 777                         "visible-horizontal", action->private_data->visible_horizontal,
 778                         "visible-vertical", action->private_data->visible_vertical,
 779                         "is-important", action->private_data->is_important,
 780                         "label", action->private_data->short_label,
 781                         "use-underline", TRUE,
 782                         "stock-id", action->private_data->stock_id,
 783                         "icon-name", action->private_data->icon_name,
 784                         NULL);
 785
 786           g_signal_connect_object (proxy, "clicked",
 787                                    G_CALLBACK (gtk_action_activate), action,
 788                                    G_CONNECT_SWAPPED);
 789         }
 790       else
 791         {
 792            g_object_set (proxy,
 793                          "visible-horizontal", action->private_data->visible_horizontal,
 794                          "visible-vertical", action->private_data->visible_vertical,
 795                          "is-important", action->private_data->is_important,
 796                          NULL);
 797        }
 798
 799       gtk_action_sync_tooltip (action, proxy);
 800
 801       g_signal_connect_object (proxy, "create_menu_proxy",
 802                                G_CALLBACK (gtk_action_create_menu_proxy),
 803                                action, 0);
 804
 805       gtk_tool_item_rebuild_menu (GTK_TOOL_ITEM (proxy));
 806     }
 807   else if (GTK_IS_BUTTON (proxy))
 808     {
 809       /* button specific synchronisers ... */
 810       if (gtk_button_get_use_stock (GTK_BUTTON (proxy)))
 811         {
 812           /* synchronise stock-id */
 813           g_object_set (proxy,
 814                         "label", action->private_data->stock_id,
 815                         NULL);
 816         }
 817       else
 818         {
 819           if (GTK_BIN (proxy)->child == NULL ||
 820               GTK_IS_LABEL (GTK_BIN (proxy)->child))
 821             {
 822               /* synchronise the label */
 823               g_object_set (proxy,
 824                             "label", action->private_data->short_label,
 825                             "use-underline", TRUE,
 826                             NULL);
 827             }
 828         }
 829       /* we leave the button alone if there is a custom child */
 830       g_signal_connect_object (proxy, "clicked",
 831                                G_CALLBACK (gtk_action_activate), action,
 832                                G_CONNECT_SWAPPED);
 833     }
 834
 835   if (action->private_data->action_group)
 836     _gtk_action_group_emit_connect_proxy (action->private_data->action_group, action, proxy);
 837 }
 838
 839 static void
 840 disconnect_proxy (GtkAction *action,
 841                   GtkWidget *proxy)
 842 {
 843   g_object_set_qdata (G_OBJECT (proxy), quark_gtk_action_proxy, NULL);
 844
 845   g_object_weak_unref (G_OBJECT (proxy), (GWeakNotify)remove_proxy, action);
 846   remove_proxy (action, proxy);
 847
 848   /* disconnect the activate handler */
 849   g_signal_handlers_disconnect_by_func (proxy,
 850                                         G_CALLBACK (gtk_action_activate),
 851                                         action);
 852
 853   /* toolbar button specific synchronisers ... */
 854   g_signal_handlers_disconnect_by_func (proxy,
 855                                         G_CALLBACK (gtk_action_create_menu_proxy),
 856                                         action);
 857
 858   if (action->private_data->action_group)
 859     _gtk_action_group_emit_disconnect_proxy (action->private_data->action_group, action, proxy);
 860 }
 861
 862 void
 863 _gtk_action_emit_activate (GtkAction *action)
 864 {
 865   GtkActionGroup *group = action->private_data->action_group;
 866
 867   if (group != NULL)
 868     {
 869       g_object_ref (group);
 870       _gtk_action_group_emit_pre_activate (group, action);
 871     }
 872
 873     g_signal_emit (action, action_signals[ACTIVATE], 0);
 874
 875   if (group != NULL)
 876     {
 877       _gtk_action_group_emit_post_activate (group, action);
 878       g_object_unref (group);
 879     }
 880 }
 881
 882 /**
 883  * gtk_action_activate:
 884  * @action: the action object
 885  *
 886  * Emits the "activate" signal on the specified action, if it isn't
 887  * insensitive. This gets called by the proxy widgets when they get
 888  * activated.
 889  *
 890  * It can also be used to manually activate an action.
 891  *
 892  * Since: 2.4
 893  */
 894 void
 895 gtk_action_activate (GtkAction *action)
 896 {
 897   g_return_if_fail (GTK_IS_ACTION (action));
 898
 899   if (gtk_action_is_sensitive (action))
 900     _gtk_action_emit_activate (action);
 901 }
 902
 903 /**
 904  * gtk_action_create_icon:
 905  * @action: the action object
 906  * @icon_size: the size of the icon that should be created.
 907  *
 908  * This function is intended for use by action implementations to
 909  * create icons displayed in the proxy widgets.
 910  *
 911  * Returns: a widget that displays the icon for this action.
 912  *
 913  * Since: 2.4
 914  */
 915 GtkWidget *
 916 gtk_action_create_icon (GtkAction *action, GtkIconSize icon_size)
 917 {
 918   g_return_val_if_fail (GTK_IS_ACTION (action), NULL);
 919
 920   if (action->private_data->stock_id)
 921     return gtk_image_new_from_stock (action->private_data->stock_id, icon_size);
 922   else if (action->private_data->icon_name)
 923     return gtk_image_new_from_icon_name (action->private_data->icon_name, icon_size);
 924   else
 925     return NULL;
 926 }
 927
 928 /**
 929  * gtk_action_create_menu_item:
 930  * @action: the action object
 931  *
 932  * Creates a menu item widget that proxies for the given action.
 933  *
 934  * Returns: a menu item connected to the action.
 935  *
 936  * Since: 2.4
 937  */
 938 GtkWidget *
 939 gtk_action_create_menu_item (GtkAction *action)
 940 {
 941   GtkWidget *menu_item;
 942
 943   g_return_val_if_fail (GTK_IS_ACTION (action), NULL);
 944
 945   menu_item = (* GTK_ACTION_GET_CLASS (action)->create_menu_item) (action);
 946
 947   (* GTK_ACTION_GET_CLASS (action)->connect_proxy) (action, menu_item);
 948
 949   return menu_item;
 950 }
 951
 952 /**
 953  * gtk_action_create_tool_item:
 954  * @action: the action object
 955  *
 956  * Creates a toolbar item widget that proxies for the given action.
 957  *
 958  * Returns: a toolbar item connected to the action.
 959  *
 960  * Since: 2.4
 961  */
 962 GtkWidget *
 963 gtk_action_create_tool_item (GtkAction *action)
 964 {
 965   GtkWidget *button;
 966
 967   g_return_val_if_fail (GTK_IS_ACTION (action), NULL);
 968
 969   button = (* GTK_ACTION_GET_CLASS (action)->create_tool_item) (action);
 970
 971   (* GTK_ACTION_GET_CLASS (action)->connect_proxy) (action, button);
 972
 973   return button;
 974 }
 975
 976 /**
 977  * gtk_action_connect_proxy:
 978  * @action: the action object
 979  * @proxy: the proxy widget
 980  *
 981  * Connects a widget to an action object as a proxy.  Synchronises
 982  * various properties of the action with the widget (such as label
 983  * text, icon, tooltip, etc), and attaches a callback so that the
 984  * action gets activated when the proxy widget does.
 985  *
 986  * If the widget is already connected to an action, it is disconnected
 987  * first.
 988  *
 989  * Since: 2.4
 990  */
 991 void
 992 gtk_action_connect_proxy (GtkAction *action,
 993                           GtkWidget *proxy)
 994 {
 995   GtkAction *prev_action;
 996
 997   g_return_if_fail (GTK_IS_ACTION (action));
 998   g_return_if_fail (GTK_IS_WIDGET (proxy));
 999
1000   prev_action = g_object_get_qdata (G_OBJECT (proxy), quark_gtk_action_proxy);
1001
1002   if (prev_action)
1003     (* GTK_ACTION_GET_CLASS (action)->disconnect_proxy) (prev_action, proxy);
1004
1005   (* GTK_ACTION_GET_CLASS (action)->connect_proxy) (action, proxy);
1006 }
1007
1008 /**
1009  * gtk_action_disconnect_proxy:
1010  * @action: the action object
1011  * @proxy: the proxy widget
1012  *
1013  * Disconnects a proxy widget from an action.
1014  * Does <emphasis>not</emphasis> destroy the widget, however.
1015  *
1016  * Since: 2.4
1017  */
1018 void
1019 gtk_action_disconnect_proxy (GtkAction *action,
1020                              GtkWidget *proxy)
1021 {
1022   g_return_if_fail (GTK_IS_ACTION (action));
1023   g_return_if_fail (GTK_IS_WIDGET (proxy));
1024
1025   g_return_if_fail (g_object_get_qdata (G_OBJECT (proxy), quark_gtk_action_proxy) == action);
1026
1027   (* GTK_ACTION_GET_CLASS (action)->disconnect_proxy) (action, proxy);
1028 }
1029
1030 /**
1031  * gtk_action_get_proxies:
1032  * @action: the action object
1033  *
1034  * Returns the proxy widgets for an action.
1035  * See also gtk_widget_get_action().
1036  *
1037  * Return value: a #GSList of proxy widgets. The list is owned by GTK+
1038  * and must not be modified.
1039  *
1040  * Since: 2.4
1041  **/
1042 GSList*
1043 gtk_action_get_proxies (GtkAction *action)
1044 {
1045   g_return_val_if_fail (GTK_IS_ACTION (action), NULL);
1046
1047   return action->private_data->proxies;
1048 }
1049
1050
1051 /**
1052  * gtk_widget_get_action:
1053  * @widget: a #GtkWidget
1054  *
1055  * Returns the #GtkAction that @widget is a proxy for.
1056  * See also gtk_action_get_proxies().
1057  *
1058  * Returns: the action that a widget is a proxy for, or
1059  *  %NULL, if it is not attached to an action.
1060  *
1061  * Since: 2.10
1062  */
1063 GtkAction*
1064 gtk_widget_get_action (GtkWidget *widget)
1065 {
1066   g_return_val_if_fail (GTK_IS_WIDGET (widget), NULL);
1067
1068   return g_object_get_qdata (G_OBJECT (widget), quark_gtk_action_proxy);
1069 }
1070
1071
1072 /**
1073  * gtk_action_get_name:
1074  * @action: the action object
1075  *
1076  * Returns the name of the action.
1077  *
1078  * Return value: the name of the action. The string belongs to GTK+ and should not
1079  *   be freed.
1080  *
1081  * Since: 2.4
1082  **/
1083 G_CONST_RETURN gchar *
1084 gtk_action_get_name (GtkAction *action)
1085 {
1086   g_return_val_if_fail (GTK_IS_ACTION (action), NULL);
1087
1088   return action->private_data->name;
1089 }
1090
1091 /**
1092  * gtk_action_is_sensitive:
1093  * @action: the action object
1094  *
1095  * Returns whether the action is effectively sensitive.
1096  *
1097  * Return value: %TRUE if the action and its associated action group
1098  * are both sensitive.
1099  *
1100  * Since: 2.4
1101  **/
1102 gboolean
1103 gtk_action_is_sensitive (GtkAction *action)
1104 {
1105   GtkActionPrivate *priv;
1106   g_return_val_if_fail (GTK_IS_ACTION (action), FALSE);
1107
1108   priv = action->private_data;
1109   return priv->sensitive &&
1110     (priv->action_group == NULL ||
1111      gtk_action_group_get_sensitive (priv->action_group));
1112 }
1113
1114 /**
1115  * gtk_action_get_sensitive:
1116  * @action: the action object
1117  *
1118  * Returns whether the action itself is sensitive. Note that this doesn't
1119  * necessarily mean effective sensitivity. See gtk_action_is_sensitive()
1120  * for that.
1121  *
1122  * Return value: %TRUE if the action itself is sensitive.
1123  *
1124  * Since: 2.4
1125  **/
1126 gboolean
1127 gtk_action_get_sensitive (GtkAction *action)
1128 {
1129   g_return_val_if_fail (GTK_IS_ACTION (action), FALSE);
1130
1131   return action->private_data->sensitive;
1132 }
1133
1134 void
1135 _gtk_action_sync_sensitive (GtkAction *action)
1136 {
1137   GSList *p;
1138   GtkWidget *proxy;
1139   gboolean sensitive;
1140
1141   sensitive = gtk_action_is_sensitive (action);
1142
1143   for (p = action->private_data->proxies; p; p = p->next)
1144     {
1145       proxy = (GtkWidget *)p->data;
1146       gtk_widget_set_sensitive (proxy, sensitive);
1147     }
1148 }
1149
1150 /**
1151  * gtk_action_set_sensitive:
1152  * @action: the action object
1153  * @sensitive: %TRUE to make the action sensitive
1154  *
1155  * Sets the ::sensitive property of the action to @sensitive. Note that
1156  * this doesn't necessarily mean effective sensitivity. See
1157  * gtk_action_is_sensitive()
1158  * for that.
1159  *
1160  * Since: 2.6
1161  **/
1162 void
1163 gtk_action_set_sensitive (GtkAction *action,
1164                           gboolean   sensitive)
1165 {
1166   g_return_if_fail (GTK_IS_ACTION (action));
1167
1168   sensitive = sensitive != FALSE;
1169
1170   if (action->private_data->sensitive != sensitive)
1171     {
1172       action->private_data->sensitive = sensitive;
1173
1174       _gtk_action_sync_sensitive (action);
1175
1176       g_object_notify (G_OBJECT (action), "sensitive");
1177     }
1178 }
1179
1180 /**
1181  * gtk_action_is_visible:
1182  * @action: the action object
1183  *
1184  * Returns whether the action is effectively visible.
1185  *
1186  * Return value: %TRUE if the action and its associated action group
1187  * are both visible.
1188  *
1189  * Since: 2.4
1190  **/
1191 gboolean
1192 gtk_action_is_visible (GtkAction *action)
1193 {
1194   GtkActionPrivate *priv;
1195   g_return_val_if_fail (GTK_IS_ACTION (action), FALSE);
1196
1197   priv = action->private_data;
1198   return priv->visible &&
1199     (priv->action_group == NULL ||
1200      gtk_action_group_get_visible (priv->action_group));
1201 }
1202
1203 /**
1204  * gtk_action_get_visible:
1205  * @action: the action object
1206  *
1207  * Returns whether the action itself is visible. Note that this doesn't
1208  * necessarily mean effective visibility. See gtk_action_is_sensitive()
1209  * for that.
1210  *
1211  * Return value: %TRUE if the action itself is visible.
1212  *
1213  * Since: 2.4
1214  **/
1215 gboolean
1216 gtk_action_get_visible (GtkAction *action)
1217 {
1218   g_return_val_if_fail (GTK_IS_ACTION (action), FALSE);
1219
1220   return action->private_data->visible;
1221 }
1222
1223 void
1224 _gtk_action_sync_visible (GtkAction *action)
1225 {
1226   GSList *p;
1227   GtkWidget *proxy;
1228   GtkWidget *menu;
1229   gboolean visible;
1230
1231   visible = gtk_action_is_visible (action);
1232
1233   for (p = action->private_data->proxies; p; p = p->next)
1234     {
1235       proxy = (GtkWidget *)p->data;
1236
1237       if (GTK_IS_MENU_ITEM (proxy))
1238         {
1239           menu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (proxy));
1240
1241           _gtk_action_sync_menu_visible (action, proxy, _gtk_menu_is_empty (menu));
1242         }
1243       else
1244         {
1245           if (visible)
1246             gtk_widget_show (proxy);
1247           else
1248             gtk_widget_hide (proxy);
1249         }
1250     }
1251 }
1252
1253 /**
1254  * gtk_action_set_visible:
1255  * @action: the action object
1256  * @visible: %TRUE to make the action visible
1257  *
1258  * Sets the ::visible property of the action to @visible. Note that
1259  * this doesn't necessarily mean effective visibility. See
1260  * gtk_action_is_visible()
1261  * for that.
1262  *
1263  * Since: 2.6
1264  **/
1265 void
1266 gtk_action_set_visible (GtkAction *action,
1267                         gboolean   visible)
1268 {
1269   g_return_if_fail (GTK_IS_ACTION (action));
1270
1271   visible = visible != FALSE;
1272
1273   if (action->private_data->visible != visible)
1274     {
1275       action->private_data->visible = visible;
1276
1277       _gtk_action_sync_visible (action);
1278
1279       g_object_notify (G_OBJECT (action), "visible");
1280     }
1281 }
1282
1283 static void
1284 gtk_action_set_is_important (GtkAction *action,
1285                              gboolean   is_important)
1286 {
1287   GSList *p;
1288   GtkWidget *proxy;
1289
1290   is_important = is_important != FALSE;
1291
1292   if (action->private_data->is_important != is_important)
1293     {
1294       action->private_data->is_important = is_important;
1295
1296       for (p = action->private_data->proxies; p; p = p->next)
1297         {
1298           proxy = (GtkWidget *)p->data;
1299
1300           if (GTK_IS_TOOL_ITEM (proxy))
1301             gtk_tool_item_set_is_important (GTK_TOOL_ITEM (proxy),
1302                                             is_important);
1303         }
1304
1305       g_object_notify (G_OBJECT (action), "is-important");
1306     }
1307 }
1308
1309 static void
1310 gtk_action_set_label (GtkAction   *action,
1311                       const gchar *label)
1312 {
1313   GSList *p;
1314   GtkWidget *proxy, *child;
1315   gchar *tmp;
1316
1317   tmp = action->private_data->label;
1318   action->private_data->label = g_strdup (label);
1319   g_free (tmp);
1320   action->private_data->label_set = (action->private_data->label != NULL);
1321   /* if label is unset, then use the label from the stock item */
1322   if (!action->private_data->label_set && action->private_data->stock_id)
1323     {
1324       GtkStockItem stock_item;
1325
1326       if (gtk_stock_lookup (action->private_data->stock_id, &stock_item))
1327         action->private_data->label = g_strdup (stock_item.label);
1328     }
1329
1330   for (p = action->private_data->proxies; p; p = p->next)
1331     {
1332       proxy = (GtkWidget *)p->data;
1333
1334       if (GTK_IS_MENU_ITEM (proxy))
1335         {
1336           child = GTK_BIN (proxy)->child;
1337
1338           if (GTK_IS_LABEL (child))
1339             gtk_label_set_label (GTK_LABEL (child),
1340                                  action->private_data->label);
1341         }
1342     }
1343
1344   g_object_notify (G_OBJECT (action), "label");
1345
1346   /* if short_label is unset, set short_label=label */
1347   if (!action->private_data->short_label_set)
1348     {
1349       gtk_action_set_short_label (action, action->private_data->label);
1350       action->private_data->short_label_set = FALSE;
1351     }
1352 }
1353
1354 static void
1355 gtk_action_set_short_label (GtkAction   *action,
1356                             const gchar *label)
1357 {
1358   GSList *p;
1359   GtkWidget *proxy, *child;
1360   gchar *tmp;
1361
1362   tmp = action->private_data->short_label;
1363   action->private_data->short_label = g_strdup (label);
1364   g_free (tmp);
1365   action->private_data->short_label_set = (action->private_data->short_label != NULL);
1366   /* if short_label is unset, then use the value of label */
1367   if (!action->private_data->short_label_set)
1368     action->private_data->short_label = g_strdup (action->private_data->label);
1369
1370   for (p = action->private_data->proxies; p; p = p->next)
1371     {
1372       proxy = (GtkWidget *)p->data;
1373
1374       if (GTK_IS_TOOL_BUTTON (proxy))
1375         gtk_tool_button_set_label (GTK_TOOL_BUTTON (proxy),
1376                                    action->private_data->short_label);
1377       else if (GTK_IS_BUTTON (proxy) &&
1378                !gtk_button_get_use_stock (GTK_BUTTON (proxy)))
1379         {
1380           child = GTK_BIN (proxy)->child;
1381
1382           if (child == NULL || GTK_IS_LABEL (child))
1383             gtk_button_set_label (GTK_BUTTON (proxy),
1384                                   action->private_data->short_label);
1385         }
1386     }
1387
1388   g_object_notify (G_OBJECT (action), "short-label");
1389 }
1390
1391 static void
1392 gtk_action_set_visible_horizontal (GtkAction *action,
1393                                    gboolean   visible_horizontal)
1394 {
1395   GSList *p;
1396   GtkWidget *proxy;
1397
1398   visible_horizontal = visible_horizontal != FALSE;
1399
1400   if (action->private_data->visible_horizontal != visible_horizontal)
1401     {
1402       action->private_data->visible_horizontal = visible_horizontal;
1403
1404       for (p = action->private_data->proxies; p; p = p->next)
1405         {
1406           proxy = (GtkWidget *)p->data;
1407
1408           if (GTK_IS_TOOL_ITEM (proxy))
1409             gtk_tool_item_set_visible_horizontal (GTK_TOOL_ITEM (proxy),
1410                                                   visible_horizontal);
1411         }
1412
1413       g_object_notify (G_OBJECT (action), "visible-horizontal");
1414     }
1415 }
1416
1417 static void
1418 gtk_action_set_visible_vertical (GtkAction *action,
1419                                  gboolean   visible_vertical)
1420 {
1421   GSList *p;
1422   GtkWidget *proxy;
1423
1424   visible_vertical = visible_vertical != FALSE;
1425
1426   if (action->private_data->visible_vertical != visible_vertical)
1427     {
1428       action->private_data->visible_vertical = visible_vertical;
1429
1430       for (p = action->private_data->proxies; p; p = p->next)
1431         {
1432           proxy = (GtkWidget *)p->data;
1433
1434           if (GTK_IS_TOOL_ITEM (proxy))
1435             gtk_tool_item_set_visible_vertical (GTK_TOOL_ITEM (proxy),
1436                                                 visible_vertical);
1437         }
1438
1439       g_object_notify (G_OBJECT (action), "visible-vertical");
1440     }
1441 }
1442
1443 static void
1444 gtk_action_sync_tooltip (GtkAction *action,
1445                          GtkWidget *proxy)
1446 {
1447   gtk_tool_item_set_tooltip_text (GTK_TOOL_ITEM (proxy),
1448                                   action->private_data->tooltip);
1449 }
1450
1451 static void
1452 gtk_action_set_tooltip (GtkAction   *action,
1453                         const gchar *tooltip)
1454 {
1455   GSList *p;
1456   GtkWidget *proxy;
1457   gchar *tmp;
1458
1459   tmp = action->private_data->tooltip;
1460   action->private_data->tooltip = g_strdup (tooltip);
1461   g_free (tmp);
1462
1463   for (p = action->private_data->proxies; p; p = p->next)
1464     {
1465       proxy = (GtkWidget *)p->data;
1466
1467       if (GTK_IS_TOOL_ITEM (proxy))
1468         gtk_action_sync_tooltip (action, proxy);
1469     }
1470
1471   g_object_notify (G_OBJECT (action), "tooltip");
1472 }
1473
1474 static void
1475 gtk_action_set_stock_id (GtkAction   *action,
1476                          const gchar *stock_id)
1477 {
1478   GSList *p;
1479   GtkWidget *proxy, *image;
1480   gchar *tmp;
1481
1482   tmp = action->private_data->stock_id;
1483   action->private_data->stock_id = g_strdup (stock_id);
1484   g_free (tmp);
1485
1486   for (p = action->private_data->proxies; p; p = p->next)
1487     {
1488       proxy = (GtkWidget *)p->data;
1489
1490       if (GTK_IS_IMAGE_MENU_ITEM (proxy))
1491         {
1492           image = gtk_image_menu_item_get_image (GTK_IMAGE_MENU_ITEM (proxy));
1493
1494           if (GTK_IS_IMAGE (image))
1495             gtk_image_set_from_stock (GTK_IMAGE (image),
1496                                       action->private_data->stock_id, GTK_ICON_SIZE_MENU);
1497         }
1498       else if (GTK_IS_TOOL_BUTTON (proxy))
1499         {
1500           gtk_tool_button_set_stock_id (GTK_TOOL_BUTTON (proxy),
1501                                         action->private_data->stock_id);
1502         }
1503       else if (GTK_IS_BUTTON (proxy) &&
1504                gtk_button_get_use_stock (GTK_BUTTON (proxy)))
1505         {
1506           gtk_button_set_label (GTK_BUTTON (proxy),
1507                                 action->private_data->stock_id);
1508         }
1509     }
1510
1511   g_object_notify (G_OBJECT (action), "stock-id");
1512
1513   /* update label and short_label if appropriate */
1514   if (!action->private_data->label_set)
1515     {
1516       GtkStockItem stock_item;
1517
1518       if (action->private_data->stock_id &&
1519           gtk_stock_lookup (action->private_data->stock_id, &stock_item))
1520         gtk_action_set_label (action, stock_item.label);
1521       else
1522         gtk_action_set_label (action, NULL);
1523
1524       action->private_data->label_set = FALSE;
1525     }
1526 }
1527
1528 static void
1529 gtk_action_set_icon_name (GtkAction   *action,
1530                           const gchar *icon_name)
1531 {
1532   GSList *p;
1533   GtkWidget *proxy, *image;
1534   gchar *tmp;
1535
1536   tmp = action->private_data->icon_name;
1537   action->private_data->icon_name = g_strdup (icon_name);
1538   g_free (tmp);
1539
1540   for (p = action->private_data->proxies; p; p = p->next)
1541     {
1542       proxy = (GtkWidget *)p->data;
1543
1544       if (GTK_IS_IMAGE_MENU_ITEM (proxy))
1545         {
1546           image = gtk_image_menu_item_get_image (GTK_IMAGE_MENU_ITEM (proxy));
1547
1548           if (GTK_IS_IMAGE (image) &&
1549               (gtk_image_get_storage_type (GTK_IMAGE (image)) == GTK_IMAGE_EMPTY ||
1550                gtk_image_get_storage_type (GTK_IMAGE (image)) == GTK_IMAGE_ICON_NAME))
1551             gtk_image_set_from_icon_name (GTK_IMAGE (image),
1552                                           action->private_data->icon_name, GTK_ICON_SIZE_MENU);
1553         }
1554       else if (GTK_IS_TOOL_BUTTON (proxy))
1555         {
1556           gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON (proxy),
1557                                          action->private_data->icon_name);
1558         }
1559       else if (GTK_IS_BUTTON (proxy) &&
1560                !gtk_button_get_use_stock (GTK_BUTTON (proxy)))
1561         {
1562           image = gtk_button_get_image (GTK_BUTTON (proxy));
1563
1564           if (GTK_IS_IMAGE (image) &&
1565               (gtk_image_get_storage_type (GTK_IMAGE (image)) == GTK_IMAGE_EMPTY ||
1566                gtk_image_get_storage_type (GTK_IMAGE (image)) == GTK_IMAGE_ICON_NAME))
1567             gtk_image_set_from_icon_name (GTK_IMAGE (image),
1568                                           action->private_data->icon_name, GTK_ICON_SIZE_MENU);
1569         }
1570     }
1571
1572   g_object_notify (G_OBJECT (action), "icon-name");
1573 }
1574
1575
1576 /**
1577  * gtk_action_block_activate_from:
1578  * @action: the action object
1579  * @proxy: a proxy widget
1580  *
1581  * Disables calls to the gtk_action_activate()
1582  * function by signals on the given proxy widget.  This is used to
1583  * break notification loops for things like check or radio actions.
1584  *
1585  * This function is intended for use by action implementations.
1586  *
1587  * Since: 2.4
1588  */
1589 void
1590 gtk_action_block_activate_from (GtkAction *action,
1591                                 GtkWidget *proxy)
1592 {
1593   g_return_if_fail (GTK_IS_ACTION (action));
1594
1595   g_signal_handlers_block_by_func (proxy, G_CALLBACK (gtk_action_activate),
1596                                    action);
1597 }
1598
1599 /**
1600  * gtk_action_unblock_activate_from:
1601  * @action: the action object
1602  * @proxy: a proxy widget
1603  *
1604  * Re-enables calls to the gtk_action_activate()
1605  * function by signals on the given proxy widget.  This undoes the
1606  * blocking done by gtk_action_block_activate_from().
1607  *
1608  * This function is intended for use by action implementations.
1609  *
1610  * Since: 2.4
1611  */
1612 void
1613 gtk_action_unblock_activate_from (GtkAction *action,
1614                                   GtkWidget *proxy)
1615 {
1616   g_return_if_fail (GTK_IS_ACTION (action));
1617
1618   g_signal_handlers_unblock_by_func (proxy, G_CALLBACK (gtk_action_activate),
1619                                      action);
1620 }
1621
1622 static void
1623 closure_accel_activate (GClosure     *closure,
1624                         GValue       *return_value,
1625                         guint         n_param_values,
1626                         const GValue *param_values,
1627                         gpointer      invocation_hint,
1628                         gpointer      marshal_data)
1629 {
1630   if (gtk_action_is_sensitive (GTK_ACTION (closure->data)))
1631     {
1632       _gtk_action_emit_activate (GTK_ACTION (closure->data));
1633
1634       /* we handled the accelerator */
1635       g_value_set_boolean (return_value, TRUE);
1636     }
1637 }
1638
1639 static void
1640 gtk_action_set_action_group (GtkAction      *action,
1641                              GtkActionGroup *action_group)
1642 {
1643   g_return_if_fail (GTK_IS_ACTION (action));
1644
1645   if (action->private_data->action_group == NULL)
1646     g_return_if_fail (GTK_IS_ACTION_GROUP (action_group));
1647   else
1648     g_return_if_fail (action_group == NULL);
1649
1650   action->private_data->action_group = action_group;
1651 }
1652
1653 /**
1654  * gtk_action_set_accel_path:
1655  * @action: the action object
1656  * @accel_path: the accelerator path
1657  *
1658  * Sets the accel path for this action.  All proxy widgets associated
1659  * with the action will have this accel path, so that their
1660  * accelerators are consistent.
1661  *
1662  * Since: 2.4
1663  */
1664 void
1665 gtk_action_set_accel_path (GtkAction   *action,
1666                            const gchar *accel_path)
1667 {
1668   g_return_if_fail (GTK_IS_ACTION (action));
1669
1670   action->private_data->accel_quark = g_quark_from_string (accel_path);
1671 }
1672
1673 /**
1674  * gtk_action_get_accel_path:
1675  * @action: the action object
1676  *
1677  * Returns the accel path for this action.
1678  *
1679  * Since: 2.6
1680  *
1681  * Returns: the accel path for this action, or %NULL
1682  *   if none is set. The returned string is owned by GTK+
1683  *   and must not be freed or modified.
1684  */
1685 G_CONST_RETURN gchar *
1686 gtk_action_get_accel_path (GtkAction *action)
1687 {
1688   g_return_val_if_fail (GTK_IS_ACTION (action), NULL);
1689
1690   if (action->private_data->accel_quark)
1691     return g_quark_to_string (action->private_data->accel_quark);
1692   else
1693     return NULL;
1694 }
1695
1696 /**
1697  * gtk_action_get_accel_closure:
1698  * @action: the action object
1699  *
1700  * Returns the accel closure for this action.
1701  *
1702  * Since: 2.8
1703  *
1704  * Returns: the accel closure for this action. The returned closure is
1705  *          owned by GTK+ and must not be unreffed or modified.
1706  */
1707 GClosure *
1708 gtk_action_get_accel_closure (GtkAction *action)
1709 {
1710   g_return_val_if_fail (GTK_IS_ACTION (action), NULL);
1711
1712   return action->private_data->accel_closure;
1713 }
1714
1715
1716 /**
1717  * gtk_action_set_accel_group:
1718  * @action: the action object
1719  * @accel_group: a #GtkAccelGroup or %NULL
1720  *
1721  * Sets the #GtkAccelGroup in which the accelerator for this action
1722  * will be installed.
1723  *
1724  * Since: 2.4
1725  **/
1726 void
1727 gtk_action_set_accel_group (GtkAction     *action,
1728                             GtkAccelGroup *accel_group)
1729 {
1730   g_return_if_fail (GTK_IS_ACTION (action));
1731   g_return_if_fail (accel_group == NULL || GTK_IS_ACCEL_GROUP (accel_group));
1732
1733   if (accel_group)
1734     g_object_ref (accel_group);
1735   if (action->private_data->accel_group)
1736     g_object_unref (action->private_data->accel_group);
1737
1738   action->private_data->accel_group = accel_group;
1739 }
1740
1741 /**
1742  * gtk_action_connect_accelerator:
1743  * @action: a #GtkAction
1744  *
1745  * Installs the accelerator for @action if @action has an
1746  * accel path and group. See gtk_action_set_accel_path() and
1747  * gtk_action_set_accel_group()
1748  *
1749  * Since multiple proxies may independently trigger the installation
1750  * of the accelerator, the @action counts the number of times this
1751  * function has been called and doesn't remove the accelerator until
1752  * gtk_action_disconnect_accelerator() has been called as many times.
1753  *
1754  * Since: 2.4
1755  **/
1756 void
1757 gtk_action_connect_accelerator (GtkAction *action)
1758 {
1759   g_return_if_fail (GTK_IS_ACTION (action));
1760
1761   if (!action->private_data->accel_quark ||
1762       !action->private_data->accel_group)
1763     return;
1764
1765   if (action->private_data->accel_count == 0)
1766     {
1767       const gchar *accel_path =
1768         g_quark_to_string (action->private_data->accel_quark);
1769
1770       gtk_accel_group_connect_by_path (action->private_data->accel_group,
1771                                        accel_path,
1772                                        action->private_data->accel_closure);
1773     }
1774
1775   action->private_data->accel_count++;
1776 }
1777
1778 /**
1779  * gtk_action_disconnect_accelerator:
1780  * @action: a #GtkAction
1781  *
1782  * Undoes the effect of one call to gtk_action_connect_accelerator().
1783  *
1784  * Since: 2.4
1785  **/
1786 void
1787 gtk_action_disconnect_accelerator (GtkAction *action)
1788 {
1789   g_return_if_fail (GTK_IS_ACTION (action));
1790
1791   if (!action->private_data->accel_quark ||
1792       !action->private_data->accel_group)
1793     return;
1794
1795   action->private_data->accel_count--;
1796
1797   if (action->private_data->accel_count == 0)
1798     gtk_accel_group_disconnect (action->private_data->accel_group,
1799                                 action->private_data->accel_closure);
1800 }
1801
1802 /**
1803  * gtk_action_create_menu:
1804  * @action: a #GtkAction
1805  *
1806  * If @action provides a #GtkMenu widget as a submenu for the menu
1807  * item or the toolbar item it creates, this function returns an
1808  * instance of that menu.
1809  *
1810  * Return value: the menu item provided by the action, or %NULL.
1811  *
1812  * Since: 2.12
1813  */
1814 GtkWidget *
1815 gtk_action_create_menu (GtkAction *action)
1816 {
1817   g_return_val_if_fail (GTK_IS_ACTION (action), NULL);
1818
1819   if (GTK_ACTION_GET_CLASS (action)->create_menu)
1820     return GTK_ACTION_GET_CLASS (action)->create_menu (action);
1821
1822   return NULL;
1823 }
1824
1825 #define __GTK_ACTION_C__
1826 #include "gtkaliasdef.c"