gtk2/gtk/gtkmodelmenuitem.c
Ryan Lortie 778aa7ade0 GtkAccelLabel: add manual accel API
Add an API to GtkAccelLabel for hardcoding the accel key to be displayed
(ie: allowing us to bypass the GtkAccelGroup lookup).

Use that from the GMenuModel-based GtkMenu construction code instead of
passing around the accel group.

This makes accel labels work in bloatpad again.

This patch effectively removes any hope of automatic runtime accel
changes in GMenuModel-based menus without additional application
support but it leaves the door open for this to be supported again in
the future (if we decide that it's important).

https://bugzilla.gnome.org/show_bug.cgi?id=683738
2012-09-17 12:31:22 -04:00

293 lines
9.0 KiB
C

/*
* Copyright © 2011 Canonical Limited
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the licence, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
* Author: Ryan Lortie <desrt@desrt.ca>
*/
#include "config.h"
#include "gtkmodelmenuitem.h"
#include "gtkaccelmapprivate.h"
#include "gtkactionhelper.h"
#include "gtkmodelmenu.h"
#include "gtkwidgetprivate.h"
#include "gtkaccellabel.h"
struct _GtkModelMenuItem
{
GtkCheckMenuItem parent_instance;
GtkActionHelperRole role;
gboolean has_indicator;
};
typedef GtkCheckMenuItemClass GtkModelMenuItemClass;
G_DEFINE_TYPE (GtkModelMenuItem, gtk_model_menu_item, GTK_TYPE_CHECK_MENU_ITEM)
#define PROP_ACTION_ROLE 1
static void
gtk_model_menu_item_toggle_size_request (GtkMenuItem *menu_item,
gint *requisition)
{
GtkModelMenuItem *item = GTK_MODEL_MENU_ITEM (menu_item);
if (item->has_indicator)
GTK_MENU_ITEM_CLASS (gtk_model_menu_item_parent_class)
->toggle_size_request (menu_item, requisition);
else
*requisition = 0;
}
static void
gtk_model_menu_item_draw_indicator (GtkCheckMenuItem *check_item,
cairo_t *cr)
{
GtkModelMenuItem *item = GTK_MODEL_MENU_ITEM (check_item);
if (item->has_indicator)
GTK_CHECK_MENU_ITEM_CLASS (gtk_model_menu_item_parent_class)
->draw_indicator (check_item, cr);
}
static void
gtk_actionable_set_namespaced_action_name (GtkActionable *actionable,
const gchar *namespace,
const gchar *action_name)
{
if (namespace)
{
gchar *name = g_strdup_printf ("%s.%s", namespace, action_name);
gtk_actionable_set_action_name (actionable, name);
g_free (name);
}
else
{
gtk_actionable_set_action_name (actionable, action_name);
}
}
static void
gtk_model_menu_item_submenu_shown (GtkWidget *widget,
gpointer user_data)
{
const gchar *action_name = user_data;
GActionMuxer *muxer;
muxer = _gtk_widget_get_action_muxer (widget);
g_action_group_change_action_state (G_ACTION_GROUP (muxer), action_name, g_variant_new_boolean (TRUE));
}
static void
gtk_model_menu_item_submenu_hidden (GtkWidget *widget,
gpointer user_data)
{
const gchar *action_name = user_data;
GActionMuxer *muxer;
muxer = _gtk_widget_get_action_muxer (widget);
g_action_group_change_action_state (G_ACTION_GROUP (muxer), action_name, g_variant_new_boolean (FALSE));
}
static void
gtk_model_menu_item_setup (GtkModelMenuItem *item,
GMenuModel *model,
gint item_index,
const gchar *action_namespace)
{
GMenuAttributeIter *iter;
GMenuModel *submenu;
const gchar *key;
GVariant *value;
if ((submenu = g_menu_model_get_item_link (model, item_index, "submenu")))
{
gchar *section_namespace = NULL;
GtkWidget *menu;
g_menu_model_get_item_attribute (model, item_index, "action-namespace", "s", &section_namespace);
if (action_namespace)
{
gchar *namespace = g_strjoin (".", action_namespace, section_namespace, NULL);
menu = gtk_model_menu_create_menu (submenu, namespace);
g_free (namespace);
}
else
{
menu = gtk_model_menu_create_menu (submenu, section_namespace);
}
gtk_menu_item_set_submenu (GTK_MENU_ITEM (item), menu);
g_free (section_namespace);
g_object_unref (submenu);
}
iter = g_menu_model_iterate_item_attributes (model, item_index);
while (g_menu_attribute_iter_get_next (iter, &key, &value))
{
if (g_str_equal (key, "label") && g_variant_is_of_type (value, G_VARIANT_TYPE_STRING))
gtk_menu_item_set_label (GTK_MENU_ITEM (item), g_variant_get_string (value, NULL));
else if (g_str_equal (key, "accel") && g_variant_is_of_type (value, G_VARIANT_TYPE_STRING))
{
GdkModifierType modifiers;
guint key;
gtk_accelerator_parse (g_variant_get_string (value, NULL), &key, &modifiers);
if (key)
{
GtkAccelLabel *accel_label;
/* Ensure that the GtkAccelLabel has been created... */
(void) gtk_menu_item_get_label (GTK_MENU_ITEM (item));
accel_label = GTK_ACCEL_LABEL (gtk_bin_get_child (GTK_BIN (item)));
g_assert (accel_label);
gtk_accel_label_set_accel (accel_label, key, modifiers);
}
}
else if (g_str_equal (key, "action") && g_variant_is_of_type (value, G_VARIANT_TYPE_STRING))
gtk_actionable_set_namespaced_action_name (GTK_ACTIONABLE (item), action_namespace,
g_variant_get_string (value, NULL));
else if (g_str_equal (key, "target"))
gtk_actionable_set_action_target_value (GTK_ACTIONABLE (item), value);
else if (g_str_equal (key, "submenu-action") && g_variant_is_of_type (value, G_VARIANT_TYPE_STRING))
{
GtkWidget *submenu;
submenu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (item));
if (submenu != NULL)
{
const gchar *action = g_variant_get_string (value, NULL);
gchar *full_action;
if (action_namespace)
full_action = g_strjoin (".", action_namespace, action, NULL);
else
full_action = g_strdup (action);
g_object_set_data_full (G_OBJECT (submenu), "gtkmodelmenu-visibility-action", full_action, g_free);
g_signal_connect (submenu, "show", G_CALLBACK (gtk_model_menu_item_submenu_shown), full_action);
g_signal_connect (submenu, "hide", G_CALLBACK (gtk_model_menu_item_submenu_hidden), full_action);
}
}
g_variant_unref (value);
}
g_object_unref (iter);
gtk_menu_item_set_use_underline (GTK_MENU_ITEM (item), TRUE);
}
static void
gtk_model_menu_item_set_has_indicator (GtkModelMenuItem *item,
gboolean has_indicator)
{
if (has_indicator == item->has_indicator)
return;
item->has_indicator = has_indicator;
gtk_widget_queue_resize (GTK_WIDGET (item));
}
static void
gtk_model_menu_item_set_property (GObject *object, guint prop_id,
const GValue *value, GParamSpec *pspec)
{
GtkModelMenuItem *item = GTK_MODEL_MENU_ITEM (object);
GtkActionHelperRole role;
AtkObject *accessible;
AtkRole a11y_role;
g_assert (prop_id == PROP_ACTION_ROLE);
role = g_value_get_uint (value);
if (role == item->role)
return;
gtk_check_menu_item_set_draw_as_radio (GTK_CHECK_MENU_ITEM (item), role == GTK_ACTION_HELPER_ROLE_RADIO);
gtk_model_menu_item_set_has_indicator (item, role != GTK_ACTION_HELPER_ROLE_NORMAL);
accessible = gtk_widget_get_accessible (GTK_WIDGET (item));
switch (role)
{
case GTK_ACTION_HELPER_ROLE_NORMAL:
a11y_role = ATK_ROLE_MENU_ITEM;
break;
case GTK_ACTION_HELPER_ROLE_TOGGLE:
a11y_role = ATK_ROLE_CHECK_MENU_ITEM;
break;
case GTK_ACTION_HELPER_ROLE_RADIO:
a11y_role = ATK_ROLE_RADIO_MENU_ITEM;
break;
default:
g_assert_not_reached ();
}
atk_object_set_role (accessible, a11y_role);
}
static void
gtk_model_menu_item_init (GtkModelMenuItem *item)
{
}
static void
gtk_model_menu_item_class_init (GtkModelMenuItemClass *class)
{
GtkCheckMenuItemClass *check_class = GTK_CHECK_MENU_ITEM_CLASS (class);
GtkMenuItemClass *item_class = GTK_MENU_ITEM_CLASS (class);
GObjectClass *object_class = G_OBJECT_CLASS (class);
check_class->draw_indicator = gtk_model_menu_item_draw_indicator;
item_class->toggle_size_request = gtk_model_menu_item_toggle_size_request;
object_class->set_property = gtk_model_menu_item_set_property;
g_object_class_install_property (object_class, PROP_ACTION_ROLE,
g_param_spec_uint ("action-role", "action role", "action role",
0, 2, 0, G_PARAM_WRITABLE | G_PARAM_STATIC_STRINGS));
}
GtkMenuItem *
gtk_model_menu_item_new (GMenuModel *model,
gint item_index,
const gchar *action_namespace)
{
GtkModelMenuItem *item;
item = g_object_new (GTK_TYPE_MODEL_MENU_ITEM, NULL);
gtk_model_menu_item_setup (item, model, item_index, action_namespace);
return GTK_MENU_ITEM (item);
}