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   gchar *name;
  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   gchar *tmp;
 402   GtkAction *action = GTK_ACTION (buildable);
 403
 404   tmp = action->private_data->name;
 405   action->private_data->name = g_strdup (name);
 406   g_free (tmp);
 407 }
 408
 409 static const gchar *
 410 gtk_action_buildable_get_name (GtkBuildable *buildable)
 411 {
 412   GtkAction *action = GTK_ACTION (buildable);
 413
 414   return action->private_data->name;
 415 }
 416
 417 /**
 418  * gtk_action_new:
 419  * @name: A unique name for the action
 420  * @label: the label displayed in menu items and on buttons
 421  * @tooltip: a tooltip for the action
 422  * @stock_id: the stock icon to display in widgets representing the action
 423  *
 424  * Creates a new #GtkAction object. To add the action to a
 425  * #GtkActionGroup and set the accelerator for the action,
 426  * call gtk_action_group_add_action_with_accel().
 427  * See <xref linkend="XML-UI"/> for information on allowed action
 428  * names.
 429  *
 430  * Return value: a new #GtkAction
 431  *
 432  * Since: 2.4
 433  */
 434 GtkAction *
 435 gtk_action_new (const gchar *name,
 436                 const gchar *label,
 437                 const gchar *tooltip,
 438                 const gchar *stock_id)
 439 {
 440   GtkAction *action;
 441
 442   action = g_object_new (GTK_TYPE_ACTION,
 443                          "name", name,
 444                          "label", label,
 445                          "tooltip", tooltip,
 446                          "stock-id", stock_id,
 447                          NULL);
 448
 449   return action;
 450 }
 451
 452 static void
 453 gtk_action_finalize (GObject *object)
 454 {
 455   GtkAction *action;
 456   action = GTK_ACTION (object);
 457
 458   g_free (action->private_data->name);
 459   g_free (action->private_data->label);
 460   g_free (action->private_data->short_label);
 461   g_free (action->private_data->tooltip);
 462   g_free (action->private_data->stock_id);
 463   g_free (action->private_data->icon_name);
 464
 465   g_closure_unref (action->private_data->accel_closure);
 466   if (action->private_data->accel_group)
 467     g_object_unref (action->private_data->accel_group);
 468
 469   G_OBJECT_CLASS (gtk_action_parent_class)->finalize (object);
 470 }
 471
 472 static void
 473 gtk_action_set_property (GObject         *object,
 474                          guint            prop_id,
 475                          const GValue    *value,
 476                          GParamSpec      *pspec)
 477 {
 478   GtkAction *action;
 479   gchar *tmp;
 480
 481   action = GTK_ACTION (object);
 482
 483   switch (prop_id)
 484     {
 485     case PROP_NAME:
 486       tmp = action->private_data->name;
 487       action->private_data->name = g_value_dup_string (value);
 488       g_free (tmp);
 489       break;
 490     case PROP_LABEL:
 491       gtk_action_set_label (action, g_value_get_string (value));
 492       break;
 493     case PROP_SHORT_LABEL:
 494       gtk_action_set_short_label (action, g_value_get_string (value));
 495       break;
 496     case PROP_TOOLTIP:
 497       gtk_action_set_tooltip (action, g_value_get_string (value));
 498       break;
 499     case PROP_STOCK_ID:
 500       gtk_action_set_stock_id (action, g_value_get_string (value));
 501       break;
 502     case PROP_ICON_NAME:
 503       gtk_action_set_icon_name (action, g_value_get_string (value));
 504       break;
 505     case PROP_VISIBLE_HORIZONTAL:
 506       gtk_action_set_visible_horizontal (action, g_value_get_boolean (value));
 507       break;
 508     case PROP_VISIBLE_VERTICAL:
 509       gtk_action_set_visible_vertical (action, g_value_get_boolean (value));
 510       break;
 511     case PROP_VISIBLE_OVERFLOWN:
 512       action->private_data->visible_overflown = g_value_get_boolean (value);
 513       break;
 514     case PROP_IS_IMPORTANT:
 515       gtk_action_set_is_important (action, g_value_get_boolean (value));
 516       break;
 517     case PROP_HIDE_IF_EMPTY:
 518       action->private_data->hide_if_empty = g_value_get_boolean (value);
 519       break;
 520     case PROP_SENSITIVE:
 521       gtk_action_set_sensitive (action, g_value_get_boolean (value));
 522       break;
 523     case PROP_VISIBLE:
 524       gtk_action_set_visible (action, g_value_get_boolean (value));
 525       break;
 526     case PROP_ACTION_GROUP:
 527       gtk_action_set_action_group (action, g_value_get_object (value));
 528       break;
 529     default:
 530       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 531       break;
 532     }
 533 }
 534
 535 static void
 536 gtk_action_get_property (GObject    *object,
 537                          guint       prop_id,
 538                          GValue     *value,
 539                          GParamSpec *pspec)
 540 {
 541   GtkAction *action;
 542
 543   action = GTK_ACTION (object);
 544
 545   switch (prop_id)
 546     {
 547     case PROP_NAME:
 548       g_value_set_string (value, action->private_data->name);
 549       break;
 550     case PROP_LABEL:
 551       g_value_set_string (value, action->private_data->label);
 552       break;
 553     case PROP_SHORT_LABEL:
 554       g_value_set_string (value, action->private_data->short_label);
 555       break;
 556     case PROP_TOOLTIP:
 557       g_value_set_string (value, action->private_data->tooltip);
 558       break;
 559     case PROP_STOCK_ID:
 560       g_value_set_string (value, action->private_data->stock_id);
 561       break;
 562     case PROP_ICON_NAME:
 563       g_value_set_string (value, action->private_data->icon_name);
 564       break;
 565     case PROP_VISIBLE_HORIZONTAL:
 566       g_value_set_boolean (value, action->private_data->visible_horizontal);
 567       break;
 568     case PROP_VISIBLE_VERTICAL:
 569       g_value_set_boolean (value, action->private_data->visible_vertical);
 570       break;
 571     case PROP_VISIBLE_OVERFLOWN:
 572       g_value_set_boolean (value, action->private_data->visible_overflown);
 573       break;
 574     case PROP_IS_IMPORTANT:
 575       g_value_set_boolean (value, action->private_data->is_important);
 576       break;
 577     case PROP_HIDE_IF_EMPTY:
 578       g_value_set_boolean (value, action->private_data->hide_if_empty);
 579       break;
 580     case PROP_SENSITIVE:
 581       g_value_set_boolean (value, action->private_data->sensitive);
 582       break;
 583     case PROP_VISIBLE:
 584       g_value_set_boolean (value, action->private_data->visible);
 585       break;
 586     case PROP_ACTION_GROUP:
 587       g_value_set_object (value, action->private_data->action_group);
 588       break;
 589     default:
 590       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 591       break;
 592     }
 593 }
 594
 595 static GtkWidget *
 596 create_menu_item (GtkAction *action)
 597 {
 598   GType menu_item_type;
 599
 600   menu_item_type = GTK_ACTION_GET_CLASS (action)->menu_item_type;
 601
 602   return g_object_new (menu_item_type, NULL);
 603 }
 604
 605 static GtkWidget *
 606 create_tool_item (GtkAction *action)
 607 {
 608   GType toolbar_item_type;
 609
 610   toolbar_item_type = GTK_ACTION_GET_CLASS (action)->toolbar_item_type;
 611
 612   return g_object_new (toolbar_item_type, NULL);
 613 }
 614
 615 static void
 616 remove_proxy (GtkAction *action,
 617               GtkWidget *proxy)
 618 {
 619   if (GTK_IS_MENU_ITEM (proxy))
 620     gtk_action_disconnect_accelerator (action);
 621
 622   action->private_data->proxies = g_slist_remove (action->private_data->proxies, proxy);
 623 }
 624
 625 /**
 626  * _gtk_action_sync_menu_visible:
 627  * @action: a #GtkAction, or %NULL to determine the action from @proxy
 628  * @proxy: a proxy menu item
 629  * @empty: whether the submenu attached to @proxy is empty
 630  *
 631  * Updates the visibility of @proxy from the visibility of @action
 632  * according to the following rules:
 633  * <itemizedlist>
 634  * <listitem><para>if @action is invisible, @proxy is too
 635  * </para></listitem>
 636  * <listitem><para>if @empty is %TRUE, hide @proxy unless the "hide-if-empty"
 637  *   property of @action indicates otherwise
 638  * </para></listitem>
 639  * </itemizedlist>
 640  *
 641  * This function is used in the implementation of #GtkUIManager.
 642  **/
 643 void
 644 _gtk_action_sync_menu_visible (GtkAction *action,
 645                                GtkWidget *proxy,
 646                                gboolean   empty)
 647 {
 648   gboolean visible, hide_if_empty;
 649
 650   g_return_if_fail (GTK_IS_MENU_ITEM (proxy));
 651   g_return_if_fail (action == NULL || GTK_IS_ACTION (action));
 652
 653   if (action == NULL)
 654     action = g_object_get_qdata (G_OBJECT (proxy), quark_gtk_action_proxy);
 655
 656   visible = gtk_action_is_visible (action);
 657   hide_if_empty = action->private_data->hide_if_empty;
 658
 659   if (visible && !(empty && hide_if_empty))
 660     gtk_widget_show (proxy);
 661   else
 662     gtk_widget_hide (proxy);
 663 }
 664
 665 gboolean _gtk_menu_is_empty (GtkWidget *menu);
 666
 667 static gboolean
 668 gtk_action_create_menu_proxy (GtkToolItem *tool_item,
 669                               GtkAction   *action)
 670 {
 671   GtkWidget *menu_item;
 672
 673   if (action->private_data->visible_overflown)
 674     {
 675       menu_item = gtk_action_create_menu_item (action);
 676
 677       g_object_ref_sink (menu_item);
 678
 679       gtk_tool_item_set_proxy_menu_item (tool_item,
 680                                          "gtk-action-menu-item", menu_item);
 681       g_object_unref (menu_item);
 682     }
 683   else
 684     gtk_tool_item_set_proxy_menu_item (tool_item,
 685                                        "gtk-action-menu-item", NULL);
 686
 687   return TRUE;
 688 }
 689
 690 static void
 691 connect_proxy (GtkAction     *action,
 692                GtkWidget     *proxy)
 693 {
 694   g_object_ref (action);
 695   g_object_set_qdata_full (G_OBJECT (proxy), quark_gtk_action_proxy, action,
 696                            g_object_unref);
 697
 698   /* add this widget to the list of proxies */
 699   action->private_data->proxies = g_slist_prepend (action->private_data->proxies, proxy);
 700   g_object_weak_ref (G_OBJECT (proxy), (GWeakNotify)remove_proxy, action);
 701
 702   gtk_widget_set_sensitive (proxy, gtk_action_is_sensitive (action));
 703   if (gtk_action_is_visible (action))
 704     gtk_widget_show (proxy);
 705   else
 706     gtk_widget_hide (proxy);
 707   gtk_widget_set_no_show_all (proxy, TRUE);
 708
 709   if (GTK_IS_MENU_ITEM (proxy))
 710     {
 711       GtkWidget *label;
 712       /* menu item specific synchronisers ... */
 713
 714       if (action->private_data->accel_quark)
 715         {
 716           gtk_action_connect_accelerator (action);
 717           gtk_menu_item_set_accel_path (GTK_MENU_ITEM (proxy),
 718                                         g_quark_to_string (action->private_data->accel_quark));
 719         }
 720
 721       label = GTK_BIN (proxy)->child;
 722
 723       /* make sure label is a label */
 724       if (label && !GTK_IS_LABEL (label))
 725         {
 726           gtk_container_remove (GTK_CONTAINER (proxy), label);
 727           label = NULL;
 728         }
 729
 730       if (!label)
 731         label = g_object_new (GTK_TYPE_ACCEL_LABEL,
 732                               "use-underline", TRUE,
 733                               "xalign", 0.0,
 734                               "visible", TRUE,
 735                               "parent", proxy,
 736                               NULL);
 737
 738       if (GTK_IS_ACCEL_LABEL (label) && action->private_data->accel_quark)
 739         g_object_set (label,
 740                       "accel-closure", action->private_data->accel_closure,
 741                       NULL);
 742
 743       gtk_label_set_label (GTK_LABEL (label), action->private_data->label);
 744
 745       if (GTK_IS_IMAGE_MENU_ITEM (proxy))
 746         {
 747           GtkWidget *image;
 748
 749           image = gtk_image_menu_item_get_image (GTK_IMAGE_MENU_ITEM (proxy));
 750           if (image && !GTK_IS_IMAGE (image))
 751             {
 752               gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (proxy), NULL);
 753               image = NULL;
 754             }
 755           if (!image)
 756             {
 757               image = gtk_image_new ();
 758               gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (proxy),
 759                                              image);
 760               gtk_widget_show (image);
 761             }
 762
 763           if (action->private_data->stock_id &&
 764               gtk_icon_factory_lookup_default (action->private_data->stock_id))
 765             gtk_image_set_from_stock (GTK_IMAGE (image),
 766                                       action->private_data->stock_id, GTK_ICON_SIZE_MENU);
 767           else if (action->private_data->icon_name)
 768             gtk_image_set_from_icon_name (GTK_IMAGE (image),
 769                                           action->private_data->icon_name, GTK_ICON_SIZE_MENU);
 770         }
 771
 772       if (gtk_menu_item_get_submenu (GTK_MENU_ITEM (proxy)) == NULL)
 773         g_signal_connect_object (proxy, "activate",
 774                                  G_CALLBACK (gtk_action_activate), action,
 775                                  G_CONNECT_SWAPPED);
 776
 777     }
 778   else if (GTK_IS_TOOL_ITEM (proxy))
 779     {
 780       /* toolbar button specific synchronisers ... */
 781       if (GTK_IS_TOOL_BUTTON (proxy))
 782         {
 783           g_object_set (proxy,
 784                         "visible-horizontal", action->private_data->visible_horizontal,
 785                         "visible-vertical", action->private_data->visible_vertical,
 786                         "is-important", action->private_data->is_important,
 787                         "label", action->private_data->short_label,
 788                         "use-underline", TRUE,
 789                         "stock-id", action->private_data->stock_id,
 790                         "icon-name", action->private_data->icon_name,
 791                         NULL);
 792
 793           g_signal_connect_object (proxy, "clicked",
 794                                    G_CALLBACK (gtk_action_activate), action,
 795                                    G_CONNECT_SWAPPED);
 796         }
 797       else
 798         {
 799            g_object_set (proxy,
 800                          "visible-horizontal", action->private_data->visible_horizontal,
 801                          "visible-vertical", action->private_data->visible_vertical,
 802                          "is-important", action->private_data->is_important,
 803                          NULL);
 804        }
 805
 806       gtk_action_sync_tooltip (action, proxy);
 807
 808       g_signal_connect_object (proxy, "create_menu_proxy",
 809                                G_CALLBACK (gtk_action_create_menu_proxy),
 810                                action, 0);
 811
 812       gtk_tool_item_rebuild_menu (GTK_TOOL_ITEM (proxy));
 813     }
 814   else if (GTK_IS_BUTTON (proxy))
 815     {
 816       /* button specific synchronisers ... */
 817       if (gtk_button_get_use_stock (GTK_BUTTON (proxy)))
 818         {
 819           /* synchronise stock-id */
 820           g_object_set (proxy,
 821                         "label", action->private_data->stock_id,
 822                         NULL);
 823         }
 824       else
 825         {
 826           if (GTK_BIN (proxy)->child == NULL ||
 827               GTK_IS_LABEL (GTK_BIN (proxy)->child))
 828             {
 829               /* synchronise the label */
 830               g_object_set (proxy,
 831                             "label", action->private_data->short_label,
 832                             "use-underline", TRUE,
 833                             NULL);
 834             }
 835         }
 836       /* we leave the button alone if there is a custom child */
 837       g_signal_connect_object (proxy, "clicked",
 838                                G_CALLBACK (gtk_action_activate), action,
 839                                G_CONNECT_SWAPPED);
 840     }
 841
 842   if (action->private_data->action_group)
 843     _gtk_action_group_emit_connect_proxy (action->private_data->action_group, action, proxy);
 844 }
 845
 846 static void
 847 disconnect_proxy (GtkAction *action,
 848                   GtkWidget *proxy)
 849 {
 850   g_object_set_qdata (G_OBJECT (proxy), quark_gtk_action_proxy, NULL);
 851
 852   g_object_weak_unref (G_OBJECT (proxy), (GWeakNotify)remove_proxy, action);
 853   remove_proxy (action, proxy);
 854
 855   /* disconnect the activate handler */
 856   g_signal_handlers_disconnect_by_func (proxy,
 857                                         G_CALLBACK (gtk_action_activate),
 858                                         action);
 859
 860   /* toolbar button specific synchronisers ... */
 861   g_signal_handlers_disconnect_by_func (proxy,
 862                                         G_CALLBACK (gtk_action_create_menu_proxy),
 863                                         action);
 864
 865   if (action->private_data->action_group)
 866     _gtk_action_group_emit_disconnect_proxy (action->private_data->action_group, action, proxy);
 867 }
 868
 869 void
 870 _gtk_action_emit_activate (GtkAction *action)
 871 {
 872   GtkActionGroup *group = action->private_data->action_group;
 873
 874   if (group != NULL)
 875     {
 876       g_object_ref (group);
 877       _gtk_action_group_emit_pre_activate (group, action);
 878     }
 879
 880     g_signal_emit (action, action_signals[ACTIVATE], 0);
 881
 882   if (group != NULL)
 883     {
 884       _gtk_action_group_emit_post_activate (group, action);
 885       g_object_unref (group);
 886     }
 887 }
 888
 889 /**
 890  * gtk_action_activate:
 891  * @action: the action object
 892  *
 893  * Emits the "activate" signal on the specified action, if it isn't
 894  * insensitive. This gets called by the proxy widgets when they get
 895  * activated.
 896  *
 897  * It can also be used to manually activate an action.
 898  *
 899  * Since: 2.4
 900  */
 901 void
 902 gtk_action_activate (GtkAction *action)
 903 {
 904   g_return_if_fail (GTK_IS_ACTION (action));
 905
 906   if (gtk_action_is_sensitive (action))
 907     _gtk_action_emit_activate (action);
 908 }
 909
 910 /**
 911  * gtk_action_create_icon:
 912  * @action: the action object
 913  * @icon_size: the size of the icon that should be created.
 914  *
 915  * This function is intended for use by action implementations to
 916  * create icons displayed in the proxy widgets.
 917  *
 918  * Returns: a widget that displays the icon for this action.
 919  *
 920  * Since: 2.4
 921  */
 922 GtkWidget *
 923 gtk_action_create_icon (GtkAction *action, GtkIconSize icon_size)
 924 {
 925   g_return_val_if_fail (GTK_IS_ACTION (action), NULL);
 926
 927   if (action->private_data->stock_id)
 928     return gtk_image_new_from_stock (action->private_data->stock_id, icon_size);
 929   else if (action->private_data->icon_name)
 930     return gtk_image_new_from_icon_name (action->private_data->icon_name, icon_size);
 931   else
 932     return NULL;
 933 }
 934
 935 /**
 936  * gtk_action_create_menu_item:
 937  * @action: the action object
 938  *
 939  * Creates a menu item widget that proxies for the given action.
 940  *
 941  * Returns: a menu item connected to the action.
 942  *
 943  * Since: 2.4
 944  */
 945 GtkWidget *
 946 gtk_action_create_menu_item (GtkAction *action)
 947 {
 948   GtkWidget *menu_item;
 949
 950   g_return_val_if_fail (GTK_IS_ACTION (action), NULL);
 951
 952   menu_item = (* GTK_ACTION_GET_CLASS (action)->create_menu_item) (action);
 953
 954   (* GTK_ACTION_GET_CLASS (action)->connect_proxy) (action, menu_item);
 955
 956   return menu_item;
 957 }
 958
 959 /**
 960  * gtk_action_create_tool_item:
 961  * @action: the action object
 962  *
 963  * Creates a toolbar item widget that proxies for the given action.
 964  *
 965  * Returns: a toolbar item connected to the action.
 966  *
 967  * Since: 2.4
 968  */
 969 GtkWidget *
 970 gtk_action_create_tool_item (GtkAction *action)
 971 {
 972   GtkWidget *button;
 973
 974   g_return_val_if_fail (GTK_IS_ACTION (action), NULL);
 975
 976   button = (* GTK_ACTION_GET_CLASS (action)->create_tool_item) (action);
 977
 978   (* GTK_ACTION_GET_CLASS (action)->connect_proxy) (action, button);
 979
 980   return button;
 981 }
 982
 983 /**
 984  * gtk_action_connect_proxy:
 985  * @action: the action object
 986  * @proxy: the proxy widget
 987  *
 988  * Connects a widget to an action object as a proxy.  Synchronises
 989  * various properties of the action with the widget (such as label
 990  * text, icon, tooltip, etc), and attaches a callback so that the
 991  * action gets activated when the proxy widget does.
 992  *
 993  * If the widget is already connected to an action, it is disconnected
 994  * first.
 995  *
 996  * Since: 2.4
 997  */
 998 void
 999 gtk_action_connect_proxy (GtkAction *action,
1000                           GtkWidget *proxy)
1001 {
1002   GtkAction *prev_action;
1003
1004   g_return_if_fail (GTK_IS_ACTION (action));
1005   g_return_if_fail (GTK_IS_WIDGET (proxy));
1006
1007   prev_action = g_object_get_qdata (G_OBJECT (proxy), quark_gtk_action_proxy);
1008
1009   if (prev_action)
1010     (* GTK_ACTION_GET_CLASS (action)->disconnect_proxy) (prev_action, proxy);
1011
1012   (* GTK_ACTION_GET_CLASS (action)->connect_proxy) (action, proxy);
1013 }
1014
1015 /**
1016  * gtk_action_disconnect_proxy:
1017  * @action: the action object
1018  * @proxy: the proxy widget
1019  *
1020  * Disconnects a proxy widget from an action.
1021  * Does <emphasis>not</emphasis> destroy the widget, however.
1022  *
1023  * Since: 2.4
1024  */
1025 void
1026 gtk_action_disconnect_proxy (GtkAction *action,
1027                              GtkWidget *proxy)
1028 {
1029   g_return_if_fail (GTK_IS_ACTION (action));
1030   g_return_if_fail (GTK_IS_WIDGET (proxy));
1031
1032   g_return_if_fail (g_object_get_qdata (G_OBJECT (proxy), quark_gtk_action_proxy) == action);
1033
1034   (* GTK_ACTION_GET_CLASS (action)->disconnect_proxy) (action, proxy);
1035 }
1036
1037 /**
1038  * gtk_action_get_proxies:
1039  * @action: the action object
1040  *
1041  * Returns the proxy widgets for an action.
1042  * See also gtk_widget_get_action().
1043  *
1044  * Return value: a #GSList of proxy widgets. The list is owned by GTK+
1045  * and must not be modified.
1046  *
1047  * Since: 2.4
1048  **/
1049 GSList*
1050 gtk_action_get_proxies (GtkAction *action)
1051 {
1052   g_return_val_if_fail (GTK_IS_ACTION (action), NULL);
1053
1054   return action->private_data->proxies;
1055 }
1056
1057
1058 /**
1059  * gtk_widget_get_action:
1060  * @widget: a #GtkWidget
1061  *
1062  * Returns the #GtkAction that @widget is a proxy for.
1063  * See also gtk_action_get_proxies().
1064  *
1065  * Returns: the action that a widget is a proxy for, or
1066  *  %NULL, if it is not attached to an action.
1067  *
1068  * Since: 2.10
1069  */
1070 GtkAction*
1071 gtk_widget_get_action (GtkWidget *widget)
1072 {
1073   g_return_val_if_fail (GTK_IS_WIDGET (widget), NULL);
1074
1075   return g_object_get_qdata (G_OBJECT (widget), quark_gtk_action_proxy);
1076 }
1077
1078
1079 /**
1080  * gtk_action_get_name:
1081  * @action: the action object
1082  *
1083  * Returns the name of the action.
1084  *
1085  * Return value: the name of the action. The string belongs to GTK+ and should not
1086  *   be freed.
1087  *
1088  * Since: 2.4
1089  **/
1090 G_CONST_RETURN gchar *
1091 gtk_action_get_name (GtkAction *action)
1092 {
1093   g_return_val_if_fail (GTK_IS_ACTION (action), NULL);
1094
1095   return action->private_data->name;
1096 }
1097
1098 /**
1099  * gtk_action_is_sensitive:
1100  * @action: the action object
1101  *
1102  * Returns whether the action is effectively sensitive.
1103  *
1104  * Return value: %TRUE if the action and its associated action group
1105  * are both sensitive.
1106  *
1107  * Since: 2.4
1108  **/
1109 gboolean
1110 gtk_action_is_sensitive (GtkAction *action)
1111 {
1112   GtkActionPrivate *priv;
1113   g_return_val_if_fail (GTK_IS_ACTION (action), FALSE);
1114
1115   priv = action->private_data;
1116   return priv->sensitive &&
1117     (priv->action_group == NULL ||
1118      gtk_action_group_get_sensitive (priv->action_group));
1119 }
1120
1121 /**
1122  * gtk_action_get_sensitive:
1123  * @action: the action object
1124  *
1125  * Returns whether the action itself is sensitive. Note that this doesn't
1126  * necessarily mean effective sensitivity. See gtk_action_is_sensitive()
1127  * for that.
1128  *
1129  * Return value: %TRUE if the action itself is sensitive.
1130  *
1131  * Since: 2.4
1132  **/
1133 gboolean
1134 gtk_action_get_sensitive (GtkAction *action)
1135 {
1136   g_return_val_if_fail (GTK_IS_ACTION (action), FALSE);
1137
1138   return action->private_data->sensitive;
1139 }
1140
1141 void
1142 _gtk_action_sync_sensitive (GtkAction *action)
1143 {
1144   GSList *p;
1145   GtkWidget *proxy;
1146   gboolean sensitive;
1147
1148   sensitive = gtk_action_is_sensitive (action);
1149
1150   for (p = action->private_data->proxies; p; p = p->next)
1151     {
1152       proxy = (GtkWidget *)p->data;
1153       gtk_widget_set_sensitive (proxy, sensitive);
1154     }
1155 }
1156
1157 /**
1158  * gtk_action_set_sensitive:
1159  * @action: the action object
1160  * @sensitive: %TRUE to make the action sensitive
1161  *
1162  * Sets the ::sensitive property of the action to @sensitive. Note that
1163  * this doesn't necessarily mean effective sensitivity. See
1164  * gtk_action_is_sensitive()
1165  * for that.
1166  *
1167  * Since: 2.6
1168  **/
1169 void
1170 gtk_action_set_sensitive (GtkAction *action,
1171                           gboolean   sensitive)
1172 {
1173   g_return_if_fail (GTK_IS_ACTION (action));
1174
1175   sensitive = sensitive != FALSE;
1176
1177   if (action->private_data->sensitive != sensitive)
1178     {
1179       action->private_data->sensitive = sensitive;
1180
1181       _gtk_action_sync_sensitive (action);
1182
1183       g_object_notify (G_OBJECT (action), "sensitive");
1184     }
1185 }
1186
1187 /**
1188  * gtk_action_is_visible:
1189  * @action: the action object
1190  *
1191  * Returns whether the action is effectively visible.
1192  *
1193  * Return value: %TRUE if the action and its associated action group
1194  * are both visible.
1195  *
1196  * Since: 2.4
1197  **/
1198 gboolean
1199 gtk_action_is_visible (GtkAction *action)
1200 {
1201   GtkActionPrivate *priv;
1202   g_return_val_if_fail (GTK_IS_ACTION (action), FALSE);
1203
1204   priv = action->private_data;
1205   return priv->visible &&
1206     (priv->action_group == NULL ||
1207      gtk_action_group_get_visible (priv->action_group));
1208 }
1209
1210 /**
1211  * gtk_action_get_visible:
1212  * @action: the action object
1213  *
1214  * Returns whether the action itself is visible. Note that this doesn't
1215  * necessarily mean effective visibility. See gtk_action_is_sensitive()
1216  * for that.
1217  *
1218  * Return value: %TRUE if the action itself is visible.
1219  *
1220  * Since: 2.4
1221  **/
1222 gboolean
1223 gtk_action_get_visible (GtkAction *action)
1224 {
1225   g_return_val_if_fail (GTK_IS_ACTION (action), FALSE);
1226
1227   return action->private_data->visible;
1228 }
1229
1230 void
1231 _gtk_action_sync_visible (GtkAction *action)
1232 {
1233   GSList *p;
1234   GtkWidget *proxy;
1235   GtkWidget *menu;
1236   gboolean visible;
1237
1238   visible = gtk_action_is_visible (action);
1239
1240   for (p = action->private_data->proxies; p; p = p->next)
1241     {
1242       proxy = (GtkWidget *)p->data;
1243
1244       if (GTK_IS_MENU_ITEM (proxy))
1245         {
1246           menu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (proxy));
1247
1248           _gtk_action_sync_menu_visible (action, proxy, _gtk_menu_is_empty (menu));
1249         }
1250       else
1251         {
1252           if (visible)
1253             gtk_widget_show (proxy);
1254           else
1255             gtk_widget_hide (proxy);
1256         }
1257     }
1258 }
1259
1260 /**
1261  * gtk_action_set_visible:
1262  * @action: the action object
1263  * @visible: %TRUE to make the action visible
1264  *
1265  * Sets the ::visible property of the action to @visible. Note that
1266  * this doesn't necessarily mean effective visibility. See
1267  * gtk_action_is_visible()
1268  * for that.
1269  *
1270  * Since: 2.6
1271  **/
1272 void
1273 gtk_action_set_visible (GtkAction *action,
1274                         gboolean   visible)
1275 {
1276   g_return_if_fail (GTK_IS_ACTION (action));
1277
1278   visible = visible != FALSE;
1279
1280   if (action->private_data->visible != visible)
1281     {
1282       action->private_data->visible = visible;
1283
1284       _gtk_action_sync_visible (action);
1285
1286       g_object_notify (G_OBJECT (action), "visible");
1287     }
1288 }
1289
1290 static void
1291 gtk_action_set_is_important (GtkAction *action,
1292                              gboolean   is_important)
1293 {
1294   GSList *p;
1295   GtkWidget *proxy;
1296
1297   is_important = is_important != FALSE;
1298
1299   if (action->private_data->is_important != is_important)
1300     {
1301       action->private_data->is_important = is_important;
1302
1303       for (p = action->private_data->proxies; p; p = p->next)
1304         {
1305           proxy = (GtkWidget *)p->data;
1306
1307           if (GTK_IS_TOOL_ITEM (proxy))
1308             gtk_tool_item_set_is_important (GTK_TOOL_ITEM (proxy),
1309                                             is_important);
1310         }
1311
1312       g_object_notify (G_OBJECT (action), "is-important");
1313     }
1314 }
1315
1316 static void
1317 gtk_action_set_label (GtkAction   *action,
1318                       const gchar *label)
1319 {
1320   GSList *p;
1321   GtkWidget *proxy, *child;
1322   gchar *tmp;
1323
1324   tmp = action->private_data->label;
1325   action->private_data->label = g_strdup (label);
1326   g_free (tmp);
1327   action->private_data->label_set = (action->private_data->label != NULL);
1328   /* if label is unset, then use the label from the stock item */
1329   if (!action->private_data->label_set && action->private_data->stock_id)
1330     {
1331       GtkStockItem stock_item;
1332
1333       if (gtk_stock_lookup (action->private_data->stock_id, &stock_item))
1334         action->private_data->label = g_strdup (stock_item.label);
1335     }
1336
1337   for (p = action->private_data->proxies; p; p = p->next)
1338     {
1339       proxy = (GtkWidget *)p->data;
1340
1341       if (GTK_IS_MENU_ITEM (proxy))
1342         {
1343           child = GTK_BIN (proxy)->child;
1344
1345           if (GTK_IS_LABEL (child))
1346             gtk_label_set_label (GTK_LABEL (child),
1347                                  action->private_data->label);
1348         }
1349     }
1350
1351   g_object_notify (G_OBJECT (action), "label");
1352
1353   /* if short_label is unset, set short_label=label */
1354   if (!action->private_data->short_label_set)
1355     {
1356       gtk_action_set_short_label (action, action->private_data->label);
1357       action->private_data->short_label_set = FALSE;
1358     }
1359 }
1360
1361 static void
1362 gtk_action_set_short_label (GtkAction   *action,
1363                             const gchar *label)
1364 {
1365   GSList *p;
1366   GtkWidget *proxy, *child;
1367   gchar *tmp;
1368
1369   tmp = action->private_data->short_label;
1370   action->private_data->short_label = g_strdup (label);
1371   g_free (tmp);
1372   action->private_data->short_label_set = (action->private_data->short_label != NULL);
1373   /* if short_label is unset, then use the value of label */
1374   if (!action->private_data->short_label_set)
1375     action->private_data->short_label = g_strdup (action->private_data->label);
1376
1377   for (p = action->private_data->proxies; p; p = p->next)
1378     {
1379       proxy = (GtkWidget *)p->data;
1380
1381       if (GTK_IS_TOOL_BUTTON (proxy))
1382         gtk_tool_button_set_label (GTK_TOOL_BUTTON (proxy),
1383                                    action->private_data->short_label);
1384       else if (GTK_IS_BUTTON (proxy) &&
1385                !gtk_button_get_use_stock (GTK_BUTTON (proxy)))
1386         {
1387           child = GTK_BIN (proxy)->child;
1388
1389           if (child == NULL || GTK_IS_LABEL (child))
1390             gtk_button_set_label (GTK_BUTTON (proxy),
1391                                   action->private_data->short_label);
1392         }
1393     }
1394
1395   g_object_notify (G_OBJECT (action), "short-label");
1396 }
1397
1398 static void
1399 gtk_action_set_visible_horizontal (GtkAction *action,
1400                                    gboolean   visible_horizontal)
1401 {
1402   GSList *p;
1403   GtkWidget *proxy;
1404
1405   visible_horizontal = visible_horizontal != FALSE;
1406
1407   if (action->private_data->visible_horizontal != visible_horizontal)
1408     {
1409       action->private_data->visible_horizontal = visible_horizontal;
1410
1411       for (p = action->private_data->proxies; p; p = p->next)
1412         {
1413           proxy = (GtkWidget *)p->data;
1414
1415           if (GTK_IS_TOOL_ITEM (proxy))
1416             gtk_tool_item_set_visible_horizontal (GTK_TOOL_ITEM (proxy),
1417                                                   visible_horizontal);
1418         }
1419
1420       g_object_notify (G_OBJECT (action), "visible-horizontal");
1421     }
1422 }
1423
1424 static void
1425 gtk_action_set_visible_vertical (GtkAction *action,
1426                                  gboolean   visible_vertical)
1427 {
1428   GSList *p;
1429   GtkWidget *proxy;
1430
1431   visible_vertical = visible_vertical != FALSE;
1432
1433   if (action->private_data->visible_vertical != visible_vertical)
1434     {
1435       action->private_data->visible_vertical = visible_vertical;
1436
1437       for (p = action->private_data->proxies; p; p = p->next)
1438         {
1439           proxy = (GtkWidget *)p->data;
1440
1441           if (GTK_IS_TOOL_ITEM (proxy))
1442             gtk_tool_item_set_visible_vertical (GTK_TOOL_ITEM (proxy),
1443                                                 visible_vertical);
1444         }
1445
1446       g_object_notify (G_OBJECT (action), "visible-vertical");
1447     }
1448 }
1449
1450 static void
1451 gtk_action_sync_tooltip (GtkAction *action,
1452                          GtkWidget *proxy)
1453 {
1454   GtkWidget *parent;
1455
1456   parent = gtk_widget_get_parent (proxy);
1457
1458   if (GTK_IS_TOOL_ITEM (proxy) && GTK_IS_TOOLBAR (parent))
1459     gtk_tool_item_set_tooltip_text (GTK_TOOL_ITEM (proxy),
1460                                     action->private_data->tooltip);
1461 }
1462
1463 static void
1464 gtk_action_set_tooltip (GtkAction   *action,
1465                         const gchar *tooltip)
1466 {
1467   GSList *p;
1468   GtkWidget *proxy;
1469   gchar *tmp;
1470
1471   tmp = action->private_data->tooltip;
1472   action->private_data->tooltip = g_strdup (tooltip);
1473   g_free (tmp);
1474
1475   for (p = action->private_data->proxies; p; p = p->next)
1476     {
1477       proxy = (GtkWidget *)p->data;
1478
1479       gtk_action_sync_tooltip (action, proxy);
1480     }
1481
1482   g_object_notify (G_OBJECT (action), "tooltip");
1483 }
1484
1485 static void
1486 gtk_action_set_stock_id (GtkAction   *action,
1487                          const gchar *stock_id)
1488 {
1489   GSList *p;
1490   GtkWidget *proxy, *image;
1491   gchar *tmp;
1492
1493   tmp = action->private_data->stock_id;
1494   action->private_data->stock_id = g_strdup (stock_id);
1495   g_free (tmp);
1496
1497   for (p = action->private_data->proxies; p; p = p->next)
1498     {
1499       proxy = (GtkWidget *)p->data;
1500
1501       if (GTK_IS_IMAGE_MENU_ITEM (proxy))
1502         {
1503           image = gtk_image_menu_item_get_image (GTK_IMAGE_MENU_ITEM (proxy));
1504
1505           if (GTK_IS_IMAGE (image))
1506             gtk_image_set_from_stock (GTK_IMAGE (image),
1507                                       action->private_data->stock_id, GTK_ICON_SIZE_MENU);
1508         }
1509       else if (GTK_IS_TOOL_BUTTON (proxy))
1510         {
1511           gtk_tool_button_set_stock_id (GTK_TOOL_BUTTON (proxy),
1512                                         action->private_data->stock_id);
1513         }
1514       else if (GTK_IS_BUTTON (proxy) &&
1515                gtk_button_get_use_stock (GTK_BUTTON (proxy)))
1516         {
1517           gtk_button_set_label (GTK_BUTTON (proxy),
1518                                 action->private_data->stock_id);
1519         }
1520     }
1521
1522   g_object_notify (G_OBJECT (action), "stock-id");
1523
1524   /* update label and short_label if appropriate */
1525   if (!action->private_data->label_set)
1526     {
1527       GtkStockItem stock_item;
1528
1529       if (action->private_data->stock_id &&
1530           gtk_stock_lookup (action->private_data->stock_id, &stock_item))
1531         gtk_action_set_label (action, stock_item.label);
1532       else
1533         gtk_action_set_label (action, NULL);
1534
1535       action->private_data->label_set = FALSE;
1536     }
1537 }
1538
1539 static void
1540 gtk_action_set_icon_name (GtkAction   *action,
1541                           const gchar *icon_name)
1542 {
1543   GSList *p;
1544   GtkWidget *proxy, *image;
1545   gchar *tmp;
1546
1547   tmp = action->private_data->icon_name;
1548   action->private_data->icon_name = g_strdup (icon_name);
1549   g_free (tmp);
1550
1551   for (p = action->private_data->proxies; p; p = p->next)
1552     {
1553       proxy = (GtkWidget *)p->data;
1554
1555       if (GTK_IS_IMAGE_MENU_ITEM (proxy))
1556         {
1557           image = gtk_image_menu_item_get_image (GTK_IMAGE_MENU_ITEM (proxy));
1558
1559           if (GTK_IS_IMAGE (image) &&
1560               (gtk_image_get_storage_type (GTK_IMAGE (image)) == GTK_IMAGE_EMPTY ||
1561                gtk_image_get_storage_type (GTK_IMAGE (image)) == GTK_IMAGE_ICON_NAME))
1562             gtk_image_set_from_icon_name (GTK_IMAGE (image),
1563                                           action->private_data->icon_name, GTK_ICON_SIZE_MENU);
1564         }
1565       else if (GTK_IS_TOOL_BUTTON (proxy))
1566         {
1567           gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON (proxy),
1568                                          action->private_data->icon_name);
1569         }
1570       else if (GTK_IS_BUTTON (proxy) &&
1571                !gtk_button_get_use_stock (GTK_BUTTON (proxy)))
1572         {
1573           image = gtk_button_get_image (GTK_BUTTON (proxy));
1574
1575           if (GTK_IS_IMAGE (image) &&
1576               (gtk_image_get_storage_type (GTK_IMAGE (image)) == GTK_IMAGE_EMPTY ||
1577                gtk_image_get_storage_type (GTK_IMAGE (image)) == GTK_IMAGE_ICON_NAME))
1578             gtk_image_set_from_icon_name (GTK_IMAGE (image),
1579                                           action->private_data->icon_name, GTK_ICON_SIZE_MENU);
1580         }
1581     }
1582
1583   g_object_notify (G_OBJECT (action), "icon-name");
1584 }
1585
1586
1587 /**
1588  * gtk_action_block_activate_from:
1589  * @action: the action object
1590  * @proxy: a proxy widget
1591  *
1592  * Disables calls to the gtk_action_activate()
1593  * function by signals on the given proxy widget.  This is used to
1594  * break notification loops for things like check or radio actions.
1595  *
1596  * This function is intended for use by action implementations.
1597  *
1598  * Since: 2.4
1599  */
1600 void
1601 gtk_action_block_activate_from (GtkAction *action,
1602                                 GtkWidget *proxy)
1603 {
1604   g_return_if_fail (GTK_IS_ACTION (action));
1605
1606   g_signal_handlers_block_by_func (proxy, G_CALLBACK (gtk_action_activate),
1607                                    action);
1608 }
1609
1610 /**
1611  * gtk_action_unblock_activate_from:
1612  * @action: the action object
1613  * @proxy: a proxy widget
1614  *
1615  * Re-enables calls to the gtk_action_activate()
1616  * function by signals on the given proxy widget.  This undoes the
1617  * blocking done by gtk_action_block_activate_from().
1618  *
1619  * This function is intended for use by action implementations.
1620  *
1621  * Since: 2.4
1622  */
1623 void
1624 gtk_action_unblock_activate_from (GtkAction *action,
1625                                   GtkWidget *proxy)
1626 {
1627   g_return_if_fail (GTK_IS_ACTION (action));
1628
1629   g_signal_handlers_unblock_by_func (proxy, G_CALLBACK (gtk_action_activate),
1630                                      action);
1631 }
1632
1633 static void
1634 closure_accel_activate (GClosure     *closure,
1635                         GValue       *return_value,
1636                         guint         n_param_values,
1637                         const GValue *param_values,
1638                         gpointer      invocation_hint,
1639                         gpointer      marshal_data)
1640 {
1641   if (gtk_action_is_sensitive (GTK_ACTION (closure->data)))
1642     {
1643       _gtk_action_emit_activate (GTK_ACTION (closure->data));
1644
1645       /* we handled the accelerator */
1646       g_value_set_boolean (return_value, TRUE);
1647     }
1648 }
1649
1650 static void
1651 gtk_action_set_action_group (GtkAction      *action,
1652                              GtkActionGroup *action_group)
1653 {
1654   g_return_if_fail (GTK_IS_ACTION (action));
1655
1656   if (action->private_data->action_group == NULL)
1657     g_return_if_fail (GTK_IS_ACTION_GROUP (action_group));
1658   else
1659     g_return_if_fail (action_group == NULL);
1660
1661   action->private_data->action_group = action_group;
1662 }
1663
1664 /**
1665  * gtk_action_set_accel_path:
1666  * @action: the action object
1667  * @accel_path: the accelerator path
1668  *
1669  * Sets the accel path for this action.  All proxy widgets associated
1670  * with the action will have this accel path, so that their
1671  * accelerators are consistent.
1672  *
1673  * Since: 2.4
1674  */
1675 void
1676 gtk_action_set_accel_path (GtkAction   *action,
1677                            const gchar *accel_path)
1678 {
1679   g_return_if_fail (GTK_IS_ACTION (action));
1680
1681   action->private_data->accel_quark = g_quark_from_string (accel_path);
1682 }
1683
1684 /**
1685  * gtk_action_get_accel_path:
1686  * @action: the action object
1687  *
1688  * Returns the accel path for this action.
1689  *
1690  * Since: 2.6
1691  *
1692  * Returns: the accel path for this action, or %NULL
1693  *   if none is set. The returned string is owned by GTK+
1694  *   and must not be freed or modified.
1695  */
1696 G_CONST_RETURN gchar *
1697 gtk_action_get_accel_path (GtkAction *action)
1698 {
1699   g_return_val_if_fail (GTK_IS_ACTION (action), NULL);
1700
1701   if (action->private_data->accel_quark)
1702     return g_quark_to_string (action->private_data->accel_quark);
1703   else
1704     return NULL;
1705 }
1706
1707 /**
1708  * gtk_action_get_accel_closure:
1709  * @action: the action object
1710  *
1711  * Returns the accel closure for this action.
1712  *
1713  * Since: 2.8
1714  *
1715  * Returns: the accel closure for this action. The returned closure is
1716  *          owned by GTK+ and must not be unreffed or modified.
1717  */
1718 GClosure *
1719 gtk_action_get_accel_closure (GtkAction *action)
1720 {
1721   g_return_val_if_fail (GTK_IS_ACTION (action), NULL);
1722
1723   return action->private_data->accel_closure;
1724 }
1725
1726
1727 /**
1728  * gtk_action_set_accel_group:
1729  * @action: the action object
1730  * @accel_group: a #GtkAccelGroup or %NULL
1731  *
1732  * Sets the #GtkAccelGroup in which the accelerator for this action
1733  * will be installed.
1734  *
1735  * Since: 2.4
1736  **/
1737 void
1738 gtk_action_set_accel_group (GtkAction     *action,
1739                             GtkAccelGroup *accel_group)
1740 {
1741   g_return_if_fail (GTK_IS_ACTION (action));
1742   g_return_if_fail (accel_group == NULL || GTK_IS_ACCEL_GROUP (accel_group));
1743
1744   if (accel_group)
1745     g_object_ref (accel_group);
1746   if (action->private_data->accel_group)
1747     g_object_unref (action->private_data->accel_group);
1748
1749   action->private_data->accel_group = accel_group;
1750 }
1751
1752 /**
1753  * gtk_action_connect_accelerator:
1754  * @action: a #GtkAction
1755  *
1756  * Installs the accelerator for @action if @action has an
1757  * accel path and group. See gtk_action_set_accel_path() and
1758  * gtk_action_set_accel_group()
1759  *
1760  * Since multiple proxies may independently trigger the installation
1761  * of the accelerator, the @action counts the number of times this
1762  * function has been called and doesn't remove the accelerator until
1763  * gtk_action_disconnect_accelerator() has been called as many times.
1764  *
1765  * Since: 2.4
1766  **/
1767 void
1768 gtk_action_connect_accelerator (GtkAction *action)
1769 {
1770   g_return_if_fail (GTK_IS_ACTION (action));
1771
1772   if (!action->private_data->accel_quark ||
1773       !action->private_data->accel_group)
1774     return;
1775
1776   if (action->private_data->accel_count == 0)
1777     {
1778       const gchar *accel_path =
1779         g_quark_to_string (action->private_data->accel_quark);
1780
1781       gtk_accel_group_connect_by_path (action->private_data->accel_group,
1782                                        accel_path,
1783                                        action->private_data->accel_closure);
1784     }
1785
1786   action->private_data->accel_count++;
1787 }
1788
1789 /**
1790  * gtk_action_disconnect_accelerator:
1791  * @action: a #GtkAction
1792  *
1793  * Undoes the effect of one call to gtk_action_connect_accelerator().
1794  *
1795  * Since: 2.4
1796  **/
1797 void
1798 gtk_action_disconnect_accelerator (GtkAction *action)
1799 {
1800   g_return_if_fail (GTK_IS_ACTION (action));
1801
1802   if (!action->private_data->accel_quark ||
1803       !action->private_data->accel_group)
1804     return;
1805
1806   action->private_data->accel_count--;
1807
1808   if (action->private_data->accel_count == 0)
1809     gtk_accel_group_disconnect (action->private_data->accel_group,
1810                                 action->private_data->accel_closure);
1811 }
1812
1813 /**
1814  * gtk_action_create_menu:
1815  * @action: a #GtkAction
1816  *
1817  * If @action provides a #GtkMenu widget as a submenu for the menu
1818  * item or the toolbar item it creates, this function returns an
1819  * instance of that menu.
1820  *
1821  * Return value: the menu item provided by the action, or %NULL.
1822  *
1823  * Since: 2.12
1824  */
1825 GtkWidget *
1826 gtk_action_create_menu (GtkAction *action)
1827 {
1828   g_return_val_if_fail (GTK_IS_ACTION (action), NULL);
1829
1830   if (GTK_ACTION_GET_CLASS (action)->create_menu)
1831     return GTK_ACTION_GET_CLASS (action)->create_menu (action);
1832
1833   return NULL;
1834 }
1835
1836 #define __GTK_ACTION_C__
1837 #include "gtkaliasdef.c"