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gtk2/gtk/gtkaction.c
Matthias Clasen a93cee89c2 Sync tooltips on toolitems. 
2003-09-24  Matthias Clasen  <maclas@gmx.de>

	* gtk/gtkaction.c (connect_proxy): Sync tooltips on toolitems.

	* gtk/gtkuimanager.c (update_node): Don't complain about missing
	actions on popups. Re-set "tooltip" property on toolitems after
	adding them to parent to trigger proxy update.
2003-09-23 23:42:39 +00:00

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/*
* GTK - The GIMP Toolkit
* Copyright (C) 1998, 1999 Red Hat, Inc.
* All rights reserved.
*
* This Library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This Library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with the Gnome Library; see the file COPYING.LIB. If not,
* write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* Author: James Henstridge <james@daa.com.au>
*
* Modified by the GTK+ Team and others 2003. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#include <config.h>
#include "gtkaction.h"
#include "gtkaccellabel.h"
#include "gtkbutton.h"
#include "gtkimage.h"
#include "gtkimagemenuitem.h"
#include "gtkintl.h"
#include "gtklabel.h"
#include "gtkmenuitem.h"
#include "gtkstock.h"
#include "gtktoolbutton.h"
#include "gtktoolbar.h"
#define GTK_ACTION_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GTK_TYPE_ACTION, GtkActionPrivate))
struct _GtkActionPrivate
{
gchar *name;
gchar *label;
gchar *short_label;
gchar *tooltip;
gchar *stock_id; /* icon */
guint sensitive : 1;
guint visible : 1;
guint label_set : 1; /* these two used so we can set label */
guint short_label_set : 1; /* based on stock id */
guint is_important : 1;
/* accelerator */
guint accel_count;
GtkAccelGroup *accel_group;
GClosure *accel_closure;
GQuark accel_quark;
/* list of proxy widgets */
GSList *proxies;
};
enum
{
ACTIVATE,
LAST_SIGNAL
};
enum
{
PROP_0,
PROP_NAME,
PROP_LABEL,
PROP_SHORT_LABEL,
PROP_TOOLTIP,
PROP_STOCK_ID,
PROP_IS_IMPORTANT,
PROP_SENSITIVE,
PROP_VISIBLE,
};
static void gtk_action_init (GtkAction *action);
static void gtk_action_class_init (GtkActionClass *class);
static GQuark accel_path_id = 0;
static const gchar *accel_path_key = "GtkAction::accel_path";
GType
gtk_action_get_type (void)
{
static GtkType type = 0;
if (!type)
{
static const GTypeInfo type_info =
{
sizeof (GtkActionClass),
(GBaseInitFunc) NULL,
(GBaseFinalizeFunc) NULL,
(GClassInitFunc) gtk_action_class_init,
(GClassFinalizeFunc) NULL,
NULL,
sizeof (GtkAction),
0, /* n_preallocs */
(GInstanceInitFunc) gtk_action_init,
};
type = g_type_register_static (G_TYPE_OBJECT,
"GtkAction",
&type_info, 0);
}
return type;
}
static void gtk_action_finalize (GObject *object);
static void gtk_action_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec);
static void gtk_action_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
static GtkWidget *create_menu_item (GtkAction *action);
static GtkWidget *create_tool_item (GtkAction *action);
static void connect_proxy (GtkAction *action,
GtkWidget *proxy);
static void disconnect_proxy (GtkAction *action,
GtkWidget *proxy);
static void closure_accel_activate (GClosure *closure,
GValue *return_value,
guint n_param_values,
const GValue *param_values,
gpointer invocation_hint,
gpointer marshal_data);
static GObjectClass *parent_class = NULL;
static guint action_signals[LAST_SIGNAL] = { 0 };
static void
gtk_action_class_init (GtkActionClass *klass)
{
GObjectClass *gobject_class;
accel_path_id = g_quark_from_static_string (accel_path_key);
parent_class = g_type_class_peek_parent (klass);
gobject_class = G_OBJECT_CLASS (klass);
gobject_class->finalize = gtk_action_finalize;
gobject_class->set_property = gtk_action_set_property;
gobject_class->get_property = gtk_action_get_property;
klass->activate = NULL;
klass->create_menu_item = create_menu_item;
klass->create_tool_item = create_tool_item;
klass->connect_proxy = connect_proxy;
klass->disconnect_proxy = disconnect_proxy;
klass->menu_item_type = GTK_TYPE_IMAGE_MENU_ITEM;
klass->toolbar_item_type = GTK_TYPE_TOOL_BUTTON;
g_object_class_install_property (gobject_class,
PROP_NAME,
g_param_spec_string ("name",
_("Name"),
_("A unique name for the action."),
NULL,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY));
g_object_class_install_property (gobject_class,
PROP_LABEL,
g_param_spec_string ("label",
_("Label"),
_("The label used for menu items and buttons that activate this action."),
NULL,
G_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_SHORT_LABEL,
g_param_spec_string ("short_label",
_("Short label"),
_("A shorter label that may be used on toolbar buttons."),
NULL,
G_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_TOOLTIP,
g_param_spec_string ("tooltip",
_("Tooltip"),
_("A tooltip for this action."),
NULL,
G_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_STOCK_ID,
g_param_spec_string ("stock_id",
_("Stock Icon"),
_("The stock icon displayed in widgets representing this action."),
NULL,
G_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_IS_IMPORTANT,
g_param_spec_boolean ("is_important",
_("Is important"),
_("Whether the action is considered important. When TRUE, toolitem proxies for this action show text in GTK_TOOLBAR_BOTH_HORIZ mode"),
FALSE,
G_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_SENSITIVE,
g_param_spec_boolean ("sensitive",
_("Sensitive"),
_("Whether the action is enabled."),
TRUE,
G_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_VISIBLE,
g_param_spec_boolean ("visible",
_("Visible"),
_("Whether the action is visible."),
TRUE,
G_PARAM_READWRITE));
/**
* GtkAction::activate:
* @action: the #GtkAction
*
* The "activate" signal is emitted when the action is activated.
*
* Since: 2.4
*/
action_signals[ACTIVATE] =
g_signal_new ("activate",
G_OBJECT_CLASS_TYPE (klass),
G_SIGNAL_RUN_FIRST | G_SIGNAL_NO_RECURSE,
G_STRUCT_OFFSET (GtkActionClass, activate), NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
g_type_class_add_private (gobject_class, sizeof (GtkActionPrivate));
}
static void
gtk_action_init (GtkAction *action)
{
action->private_data = GTK_ACTION_GET_PRIVATE (action);
action->private_data->name = NULL;
action->private_data->label = NULL;
action->private_data->short_label = NULL;
action->private_data->tooltip = NULL;
action->private_data->stock_id = NULL;
action->private_data->is_important = FALSE;
action->private_data->sensitive = TRUE;
action->private_data->visible = TRUE;
action->private_data->label_set = FALSE;
action->private_data->short_label_set = FALSE;
action->private_data->accel_count = 0;
action->private_data->accel_closure =
g_closure_new_object (sizeof (GClosure), G_OBJECT (action));
g_closure_set_marshal (action->private_data->accel_closure,
closure_accel_activate);
g_closure_ref (action->private_data->accel_closure);
g_closure_sink (action->private_data->accel_closure);
action->private_data->accel_quark = 0;
action->private_data->accel_count = 0;
action->private_data->accel_group = NULL;
action->private_data->proxies = NULL;
}
static void
gtk_action_finalize (GObject *object)
{
GtkAction *action;
action = GTK_ACTION (object);
g_free (action->private_data->name);
g_free (action->private_data->label);
g_free (action->private_data->short_label);
g_free (action->private_data->tooltip);
g_free (action->private_data->stock_id);
g_closure_unref (action->private_data->accel_closure);
if (action->private_data->accel_group)
g_object_unref (action->private_data->accel_group);
}
static void
gtk_action_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkAction *action;
gchar *tmp;
action = GTK_ACTION (object);
switch (prop_id)
{
case PROP_NAME:
tmp = action->private_data->name;
action->private_data->name = g_value_dup_string (value);
g_free (tmp);
break;
case PROP_LABEL:
tmp = action->private_data->label;
action->private_data->label = g_value_dup_string (value);
g_free (tmp);
action->private_data->label_set = (action->private_data->label != NULL);
/* if label is unset, then use the label from the stock item */
if (!action->private_data->label_set && action->private_data->stock_id)
{
GtkStockItem stock_item;
if (gtk_stock_lookup (action->private_data->stock_id, &stock_item))
action->private_data->label = g_strdup (stock_item.label);
}
/* if short_label is unset, set short_label=label */
if (!action->private_data->short_label_set)
{
tmp = action->private_data->short_label;
action->private_data->short_label = g_strdup (action->private_data->label);
g_free (tmp);
g_object_notify (object, "short_label");
}
break;
case PROP_SHORT_LABEL:
tmp = action->private_data->short_label;
action->private_data->short_label = g_value_dup_string (value);
g_free (tmp);
action->private_data->short_label_set = (action->private_data->short_label != NULL);
/* if short_label is unset, then use the value of label */
if (!action->private_data->short_label_set)
{
action->private_data->short_label = g_strdup (action->private_data->label);
}
break;
case PROP_TOOLTIP:
tmp = action->private_data->tooltip;
action->private_data->tooltip = g_value_dup_string (value);
g_free (tmp);
break;
case PROP_STOCK_ID:
tmp = action->private_data->stock_id;
action->private_data->stock_id = g_value_dup_string (value);
g_free (tmp);
/* update label and short_label if appropriate */
if (!action->private_data->label_set)
{
GtkStockItem stock_item;
g_free (action->private_data->label);
if (gtk_stock_lookup (action->private_data->stock_id, &stock_item))
action->private_data->label = g_strdup (stock_item.label);
else
action->private_data->label = NULL;
g_object_notify (object, "label");
}
if (!action->private_data->short_label_set)
{
tmp = action->private_data->short_label;
action->private_data->short_label = g_strdup (action->private_data->label);
g_free (tmp);
g_object_notify (object, "short_label");
}
break;
case PROP_IS_IMPORTANT:
action->private_data->is_important = g_value_get_boolean (value);
break;
case PROP_SENSITIVE:
action->private_data->sensitive = g_value_get_boolean (value);
break;
case PROP_VISIBLE:
action->private_data->visible = g_value_get_boolean (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_action_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GtkAction *action;
action = GTK_ACTION (object);
switch (prop_id)
{
case PROP_NAME:
g_value_set_string (value, action->private_data->name);
break;
case PROP_LABEL:
g_value_set_string (value, action->private_data->label);
break;
case PROP_SHORT_LABEL:
g_value_set_string (value, action->private_data->short_label);
break;
case PROP_TOOLTIP:
g_value_set_string (value, action->private_data->tooltip);
break;
case PROP_STOCK_ID:
g_value_set_string (value, action->private_data->stock_id);
break;
case PROP_IS_IMPORTANT:
g_value_set_boolean (value, action->private_data->is_important);
break;
case PROP_SENSITIVE:
g_value_set_boolean (value, action->private_data->sensitive);
break;
case PROP_VISIBLE:
g_value_set_boolean (value, action->private_data->visible);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static GtkWidget *
create_menu_item (GtkAction *action)
{
GType menu_item_type;
menu_item_type = GTK_ACTION_GET_CLASS (action)->menu_item_type;
return g_object_new (menu_item_type, NULL);
}
static GtkWidget *
create_tool_item (GtkAction *action)
{
GType toolbar_item_type;
toolbar_item_type = GTK_ACTION_GET_CLASS (action)->toolbar_item_type;
return g_object_new (toolbar_item_type, NULL);
}
static void
remove_proxy (GtkWidget *proxy,
GtkAction *action)
{
if (GTK_IS_MENU_ITEM (proxy))
gtk_action_disconnect_accelerator (action);
action->private_data->proxies = g_slist_remove (action->private_data->proxies, proxy);
}
static void
gtk_action_sync_property (GtkAction *action,
GParamSpec *pspec,
GtkWidget *proxy)
{
const gchar *property;
GValue value = { 0, };
property = g_param_spec_get_name (pspec);
g_value_init (&value, G_PARAM_SPEC_VALUE_TYPE (pspec));
g_object_get_property (G_OBJECT (action), property, &value);
g_object_set_property (G_OBJECT (proxy), property, &value);
g_value_unset (&value);
}
static void
gtk_action_sync_label (GtkAction *action,
GParamSpec *pspec,
GtkWidget *proxy)
{
GtkWidget *label = NULL;
g_return_if_fail (GTK_IS_MENU_ITEM (proxy));
label = GTK_BIN (proxy)->child;
if (GTK_IS_LABEL (label))
gtk_label_set_label (GTK_LABEL (label), action->private_data->label);
}
static void
gtk_action_sync_short_label (GtkAction *action,
GParamSpec *pspec,
GtkWidget *proxy)
{
GValue value = { 0, };
g_value_init (&value, G_TYPE_STRING);
g_object_get_property (G_OBJECT (action), "short_label", &value);
g_object_set_property (G_OBJECT (proxy), "label", &value);
g_value_unset (&value);
}
static void
gtk_action_sync_stock_id (GtkAction *action,
GParamSpec *pspec,
GtkWidget *proxy)
{
GtkWidget *image = NULL;
if (GTK_IS_IMAGE_MENU_ITEM (proxy))
{
image = gtk_image_menu_item_get_image (GTK_IMAGE_MENU_ITEM (proxy));
if (GTK_IS_IMAGE (image))
gtk_image_set_from_stock (GTK_IMAGE (image),
action->private_data->stock_id, GTK_ICON_SIZE_MENU);
}
}
static void
gtk_action_sync_tooltip (GtkAction *action,
GParamSpec *pspec,
GtkWidget *proxy)
{
g_return_if_fail (GTK_IS_TOOL_ITEM (proxy));
if (GTK_IS_TOOLBAR (gtk_widget_get_parent (proxy)))
{
GtkToolbar *toolbar = GTK_TOOLBAR (gtk_widget_get_parent (proxy));
gtk_tool_item_set_tooltip (GTK_TOOL_ITEM (proxy),
toolbar->tooltips,
action->private_data->tooltip,
NULL);
}
}
static gboolean
gtk_action_create_menu_proxy (GtkToolItem *tool_item,
GtkAction *action)
{
GtkWidget *menu_item = gtk_action_create_menu_item (action);
g_object_ref (menu_item);
gtk_object_sink (GTK_OBJECT (menu_item));
gtk_tool_item_set_proxy_menu_item (tool_item, "gtk-action-menu-item", menu_item);
g_object_unref (menu_item);
return TRUE;
}
static void
connect_proxy (GtkAction *action,
GtkWidget *proxy)
{
g_object_ref (action);
g_object_set_data_full (G_OBJECT (proxy), "gtk-action", action,
g_object_unref);
/* add this widget to the list of proxies */
action->private_data->proxies = g_slist_prepend (action->private_data->proxies, proxy);
g_signal_connect (proxy, "destroy",
G_CALLBACK (remove_proxy), action);
g_signal_connect_object (action, "notify::sensitive",
G_CALLBACK (gtk_action_sync_property), proxy, 0);
gtk_widget_set_sensitive (proxy, action->private_data->sensitive);
g_signal_connect_object (action, "notify::visible",
G_CALLBACK (gtk_action_sync_property), proxy, 0);
if (action->private_data->visible)
gtk_widget_show (proxy);
else
gtk_widget_hide (proxy);
gtk_widget_set_no_show_all (proxy, TRUE);
if (GTK_IS_MENU_ITEM (proxy))
{
GtkWidget *label;
/* menu item specific synchronisers ... */
if (action->private_data->accel_quark)
{
gtk_action_connect_accelerator (action);
gtk_menu_item_set_accel_path (GTK_MENU_ITEM (proxy),
g_quark_to_string (action->private_data->accel_quark));
}
label = GTK_BIN (proxy)->child;
/* make sure label is a label */
if (label && !GTK_IS_LABEL (label))
{
gtk_container_remove (GTK_CONTAINER (proxy), label);
label = NULL;
}
if (!label)
label = g_object_new (GTK_TYPE_ACCEL_LABEL,
"use_underline", TRUE,
"xalign", 0.0,
"visible", TRUE,
"parent", proxy,
NULL);
if (GTK_IS_ACCEL_LABEL (label) && action->private_data->accel_quark)
g_object_set (G_OBJECT (label),
"accel_closure", action->private_data->accel_closure,
NULL);
gtk_label_set_label (GTK_LABEL (label), action->private_data->label);
g_signal_connect_object (action, "notify::label",
G_CALLBACK (gtk_action_sync_label), proxy, 0);
if (GTK_IS_IMAGE_MENU_ITEM (proxy))
{
GtkWidget *image;
image = gtk_image_menu_item_get_image (GTK_IMAGE_MENU_ITEM (proxy));
if (image && !GTK_IS_IMAGE (image))
{
gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (proxy), NULL);
image = NULL;
}
if (!image)
{
image = gtk_image_new_from_stock (NULL,
GTK_ICON_SIZE_MENU);
gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (proxy),
image);
gtk_widget_show (image);
}
gtk_image_set_from_stock (GTK_IMAGE (image),
action->private_data->stock_id, GTK_ICON_SIZE_MENU);
g_signal_connect_object (action, "notify::stock_id",
G_CALLBACK (gtk_action_sync_stock_id),
proxy, 0);
}
g_signal_connect_object (proxy, "activate",
G_CALLBACK (gtk_action_activate), action,
G_CONNECT_SWAPPED);
}
else if (GTK_IS_TOOL_BUTTON (proxy))
{
/* toolbar button specific synchronisers ... */
g_object_set (G_OBJECT (proxy),
"label", action->private_data->short_label,
"use_underline", TRUE,
"stock_id", action->private_data->stock_id,
"is_important", action->private_data->is_important,
NULL);
/* FIXME: we should set the tooltip here, but the current api
* doesn't allow it before the item is added to a toolbar.
*/
g_signal_connect_object (action, "notify::short_label",
G_CALLBACK (gtk_action_sync_short_label),
proxy, 0);
g_signal_connect_object (action, "notify::stock_id",
G_CALLBACK (gtk_action_sync_property),
proxy, 0);
g_signal_connect_object (action, "notify::is_important",
G_CALLBACK (gtk_action_sync_property),
proxy, 0);
g_signal_connect_object (action, "notify::tooltip",
G_CALLBACK (gtk_action_sync_tooltip),
proxy, 0);
g_signal_connect_object (proxy, "create_menu_proxy",
G_CALLBACK (gtk_action_create_menu_proxy),
action, 0);
g_signal_connect_object (proxy, "clicked",
G_CALLBACK (gtk_action_activate), action,
G_CONNECT_SWAPPED);
}
else if (GTK_IS_BUTTON (proxy))
{
/* button specific synchronisers ... */
/* synchronise the label */
g_object_set (G_OBJECT (proxy),
"label", action->private_data->short_label,
"use_underline", TRUE,
NULL);
g_signal_connect_object (action, "notify::short_label",
G_CALLBACK (gtk_action_sync_short_label),
proxy, 0);
g_signal_connect_object (proxy, "clicked",
G_CALLBACK (gtk_action_activate), action,
G_CONNECT_SWAPPED);
}
}
static void
disconnect_proxy (GtkAction *action,
GtkWidget *proxy)
{
g_object_set_data (G_OBJECT (proxy), "gtk-action", NULL);
/* remove proxy from list of proxies */
g_signal_handlers_disconnect_by_func (proxy,
G_CALLBACK (remove_proxy),
action);
remove_proxy (proxy, action);
/* disconnect the activate handler */
g_signal_handlers_disconnect_by_func (proxy,
G_CALLBACK (gtk_action_activate),
action);
/* disconnect handlers for notify::* signals */
g_signal_handlers_disconnect_by_func (proxy,
G_CALLBACK (gtk_action_sync_property),
action);
g_signal_handlers_disconnect_by_func (action,
G_CALLBACK (gtk_action_sync_stock_id), proxy);
/* menu item specific synchronisers ... */
g_signal_handlers_disconnect_by_func (action,
G_CALLBACK (gtk_action_sync_label),
proxy);
/* toolbar button specific synchronisers ... */
g_signal_handlers_disconnect_by_func (action,
G_CALLBACK (gtk_action_sync_short_label),
proxy);
g_signal_handlers_disconnect_by_func (proxy,
G_CALLBACK (gtk_action_create_menu_proxy),
action);
}
/**
* gtk_action_activate:
* @action: the action object
*
* Emits the "activate" signal on the specified action.
* This gets called by the proxy widgets when they get activated.
*
* It can also be used to manually activate an action.
*
* Since: 2.4
*/
void
gtk_action_activate (GtkAction *action)
{
g_signal_emit (action, action_signals[ACTIVATE], 0);
}
/**
* gtk_action_create_icon:
* @action: the action object
* @icon_size: the size of the icon that should be created.
*
* This function is intended for use by action implementations to
* create icons displayed in the proxy widgets.
*
* Returns: a widget that displays the icon for this action.
*
* Since: 2.4
*/
GtkWidget *
gtk_action_create_icon (GtkAction *action, GtkIconSize icon_size)
{
g_return_val_if_fail (GTK_IS_ACTION (action), NULL);
if (action->private_data->stock_id)
return gtk_image_new_from_stock (action->private_data->stock_id, icon_size);
else
return NULL;
}
/**
* gtk_action_create_menu_item:
* @action: the action object
*
* Creates a menu item widget that proxies for the given action.
*
* Returns: a menu item connected to the action.
*
* Since: 2.4
*/
GtkWidget *
gtk_action_create_menu_item (GtkAction *action)
{
GtkWidget *menu_item;
g_return_val_if_fail (GTK_IS_ACTION (action), NULL);
menu_item = (* GTK_ACTION_GET_CLASS (action)->create_menu_item) (action);
(* GTK_ACTION_GET_CLASS (action)->connect_proxy) (action, menu_item);
return menu_item;
}
/**
* gtk_action_create_tool_item:
* @action: the action object
*
* Creates a toolbar item widget that proxies for the given action.
*
* Returns: a toolbar item connected to the action.
*
* Since: 2.4
*/
GtkWidget *
gtk_action_create_tool_item (GtkAction *action)
{
GtkWidget *button;
g_return_val_if_fail (GTK_IS_ACTION (action), NULL);
button = (* GTK_ACTION_GET_CLASS (action)->create_tool_item) (action);
(* GTK_ACTION_GET_CLASS (action)->connect_proxy) (action, button);
return button;
}
/**
* gtk_action_connect_proxy:
* @action: the action object
* @proxy: the proxy widget
*
* Connects a widget to an action object as a proxy. Synchronises
* various properties of the action with the widget (such as label
* text, icon, tooltip, etc), and attaches a callback so that the
* action gets activated when the proxy widget does.
*
* If the widget is already connected to an action, it is disconnected
* first.
*
* Since: 2.4
*/
void
gtk_action_connect_proxy (GtkAction *action,
GtkWidget *proxy)
{
GtkAction *prev_action;
g_return_if_fail (GTK_IS_ACTION (action));
g_return_if_fail (GTK_IS_WIDGET (proxy));
prev_action = g_object_get_data (G_OBJECT (proxy), "gtk-action");
if (prev_action)
(* GTK_ACTION_GET_CLASS (action)->disconnect_proxy) (prev_action, proxy);
(* GTK_ACTION_GET_CLASS (action)->connect_proxy) (action, proxy);
}
/**
* gtk_action_disconnect_proxy:
* @action: the action object
* @proxy: the proxy widget
*
* Disconnects a proxy widget from an action.
* Does <emphasis>not</emphasis> destroy the widget, however.
*
* Since: 2.4
*/
void
gtk_action_disconnect_proxy (GtkAction *action,
GtkWidget *proxy)
{
g_return_if_fail (GTK_IS_ACTION (action));
g_return_if_fail (GTK_IS_WIDGET (proxy));
g_return_if_fail (g_object_get_data (G_OBJECT (proxy), "gtk-action") == action);
(* GTK_ACTION_GET_CLASS (action)->disconnect_proxy) (action, proxy);
}
/**
* gtk_action_get_proxies:
* @action: the action object
*
* Returns the proxy widgets for an action.
*
* Return value: a #GSList of proxy widgets. The list is owned by the action and
* must not be modified.
*
* Since: 2.4
**/
GSList*
gtk_action_get_proxies (GtkAction *action)
{
g_return_val_if_fail (GTK_IS_ACTION (action), NULL);
return action->private_data->proxies;
}
/**
* gtk_action_get_name:
* @action: the action object
*
* Returns the name of the action.
*
* Return value: the name of the action. The string belongs to GTK+ and should not
* be freed.
*
* Since: 2.4
**/
const gchar *
gtk_action_get_name (GtkAction *action)
{
g_return_val_if_fail (GTK_IS_ACTION (action), NULL);
return action->private_data->name;
}
/**
* gtk_action_block_activate_from:
* @action: the action object
* @proxy: a proxy widget
*
* Disables calls to the gtk_action_activate()
* function by signals on the given proxy widget. This is used to
* break notification loops for things like check or radio actions.
*
* This function is intended for use by action implementations.
*
* Since: 2.4
*/
void
gtk_action_block_activate_from (GtkAction *action,
GtkWidget *proxy)
{
g_return_if_fail (GTK_IS_ACTION (action));
g_signal_handlers_block_by_func (proxy, G_CALLBACK (gtk_action_activate),
action);
}
/**
* gtk_action_unblock_activate_from:
* @action: the action object
* @proxy: a proxy widget
*
* Re-enables calls to the gtk_action_activate()
* function by signals on the given proxy widget. This undoes the
* blocking done by gtk_action_block_activate_from().
*
* This function is intended for use by action implementations.
*
* Since: 2.4
*/
void
gtk_action_unblock_activate_from (GtkAction *action,
GtkWidget *proxy)
{
g_return_if_fail (GTK_IS_ACTION (action));
g_signal_handlers_unblock_by_func (proxy, G_CALLBACK (gtk_action_activate),
action);
}
static void
closure_accel_activate (GClosure *closure,
GValue *return_value,
guint n_param_values,
const GValue *param_values,
gpointer invocation_hint,
gpointer marshal_data)
{
if (GTK_ACTION (closure->data)->private_data->sensitive)
g_signal_emit (closure->data, action_signals[ACTIVATE], 0);
/* we handled the accelerator */
g_value_set_boolean (return_value, TRUE);
}
/**
* gtk_action_set_accel_path:
* @action: the action object
* @accel_path: the accelerator path
*
* Sets the accel path for this action. All proxy widgets associated
* with the action will have this accel path, so that their
* accelerators are consistent.
*
* Since: 2.4
*/
void
gtk_action_set_accel_path (GtkAction *action,
const gchar *accel_path)
{
g_return_if_fail (GTK_IS_ACTION (action));
action->private_data->accel_quark = g_quark_from_string (accel_path);
}
/**
* gtk_action_set_accel_group:
* @action: the action object
* @accel_group: a #GtkAccelGroup or %NULL
*
* Sets the #GtkAccelGroup in which the accelerator for this action
* will be installed.
*
* Since: 2.4
**/
void
gtk_action_set_accel_group (GtkAction *action,
GtkAccelGroup *accel_group)
{
g_return_if_fail (GTK_IS_ACTION (action));
g_return_if_fail (accel_group == NULL || GTK_IS_ACCEL_GROUP (accel_group));
if (accel_group)
g_object_ref (accel_group);
if (action->private_data->accel_group)
g_object_unref (action->private_data->accel_group);
action->private_data->accel_group = accel_group;
}
/**
* gtk_action_connect_accelerator:
* @action: a #GtkAction
*
* Installs the accelerator for @action if @action has an
* accel path and group. See gtk_action_set_accel_path() and
* gtk_action_set_accel_group()
*
* Since multiple proxies may independently trigger the installation
* of the accelerator, the @action counts the number of times this
* function has been called and doesn't remove the accelerator until
* gtk_action_disconnect_accelerator() has been called as many times.
*
* Since: 2.4
**/
void
gtk_action_connect_accelerator (GtkAction *action)
{
g_return_if_fail (GTK_IS_ACTION (action));
if (!action->private_data->accel_quark ||
!action->private_data->accel_group)
return;
if (action->private_data->accel_count == 0)
{
const gchar *accel_path =
g_quark_to_string (action->private_data->accel_quark);
gtk_accel_group_connect_by_path (action->private_data->accel_group,
accel_path,
action->private_data->accel_closure);
}
action->private_data->accel_count++;
}
/**
* gtk_action_disconnect_accelerator:
* @action: a #GtkAction
*
* Undoes the effect of one call to gtk_action_connect_accelerator().
*
* Since: 2.4
**/
void
gtk_action_disconnect_accelerator (GtkAction *action)
{
g_return_if_fail (GTK_IS_ACTION (action));
if (!action->private_data->accel_quark ||
!action->private_data->accel_group)
return;
action->private_data->accel_count--;
if (action->private_data->accel_count == 0)
gtk_accel_group_disconnect (action->private_data->accel_group,
action->private_data->accel_closure);
}
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