forked from AuroraMiddleware/gtk
357 lines
10 KiB
C
357 lines
10 KiB
C
/* GAIL - The GNOME Accessibility Implementation Library
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* Copyright 2001, 2002, 2003 Sun Microsystems Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include "config.h"
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#include <string.h>
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#undef GTK_DISABLE_DEPRECATED
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#include <gtk/gtk.h>
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#include <gdk/gdkkeysyms.h>
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#include "gailoptionmenu.h"
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static void gail_option_menu_class_init (GailOptionMenuClass *klass);
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static void gail_option_menu_init (GailOptionMenu *menu);
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static void gail_option_menu_real_initialize (AtkObject *obj,
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gpointer data);
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static gint gail_option_menu_get_n_children (AtkObject *obj);
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static AtkObject* gail_option_menu_ref_child (AtkObject *obj,
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gint i);
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static gint gail_option_menu_real_add_gtk (GtkContainer *container,
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GtkWidget *widget,
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gpointer data);
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static gint gail_option_menu_real_remove_gtk (GtkContainer *container,
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GtkWidget *widget,
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gpointer data);
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static void atk_action_interface_init (AtkActionIface *iface);
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static gboolean gail_option_menu_do_action (AtkAction *action,
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gint i);
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static gboolean idle_do_action (gpointer data);
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static gint gail_option_menu_get_n_actions (AtkAction *action);
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static G_CONST_RETURN gchar* gail_option_menu_get_description (AtkAction *action,
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gint i);
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static G_CONST_RETURN gchar* gail_option_menu_action_get_name (AtkAction *action,
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gint i);
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static gboolean gail_option_menu_set_description (AtkAction *action,
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gint i,
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const gchar *desc);
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static void gail_option_menu_changed (GtkOptionMenu *option_menu);
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G_DEFINE_TYPE_WITH_CODE (GailOptionMenu, gail_option_menu, GAIL_TYPE_BUTTON,
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G_IMPLEMENT_INTERFACE (ATK_TYPE_ACTION, atk_action_interface_init))
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static void
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gail_option_menu_class_init (GailOptionMenuClass *klass)
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{
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AtkObjectClass *class = ATK_OBJECT_CLASS (klass);
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GailContainerClass *container_class;
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container_class = (GailContainerClass *) klass;
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class->get_n_children = gail_option_menu_get_n_children;
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class->ref_child = gail_option_menu_ref_child;
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class->initialize = gail_option_menu_real_initialize;
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container_class->add_gtk = gail_option_menu_real_add_gtk;
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container_class->remove_gtk = gail_option_menu_real_remove_gtk;
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}
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static void
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gail_option_menu_init (GailOptionMenu *menu)
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{
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}
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static void
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gail_option_menu_real_initialize (AtkObject *obj,
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gpointer data)
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{
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GtkOptionMenu *option_menu;
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ATK_OBJECT_CLASS (gail_option_menu_parent_class)->initialize (obj, data);
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option_menu = GTK_OPTION_MENU (data);
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g_signal_connect (option_menu, "changed",
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G_CALLBACK (gail_option_menu_changed), NULL);
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obj->role = ATK_ROLE_COMBO_BOX;
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}
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static gint
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gail_option_menu_get_n_children (AtkObject *obj)
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{
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GtkWidget *widget;
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GtkOptionMenu *option_menu;
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gint n_children = 0;
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g_return_val_if_fail (GAIL_IS_OPTION_MENU (obj), 0);
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widget = GTK_ACCESSIBLE (obj)->widget;
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if (widget == NULL)
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/*
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* State is defunct
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*/
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return 0;
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option_menu = GTK_OPTION_MENU (widget);
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if (gtk_option_menu_get_menu (option_menu))
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n_children++;
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return n_children;;
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}
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static AtkObject*
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gail_option_menu_ref_child (AtkObject *obj,
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gint i)
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{
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GtkWidget *widget;
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AtkObject *accessible;
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g_return_val_if_fail (GAIL_IS_OPTION_MENU (obj), NULL);
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widget = GTK_ACCESSIBLE (obj)->widget;
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if (widget == NULL)
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/*
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* State is defunct
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*/
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return NULL;
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if (i == 0)
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accessible = g_object_ref (gtk_widget_get_accessible (gtk_option_menu_get_menu (GTK_OPTION_MENU (widget))));
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else
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accessible = NULL;
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return accessible;
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}
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static gint
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gail_option_menu_real_add_gtk (GtkContainer *container,
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GtkWidget *widget,
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gpointer data)
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{
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AtkObject* atk_parent = ATK_OBJECT (data);
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AtkObject* atk_child = gtk_widget_get_accessible (widget);
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GAIL_CONTAINER_CLASS (gail_option_menu_parent_class)->add_gtk (container, widget, data);
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g_object_notify (G_OBJECT (atk_child), "accessible_parent");
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g_signal_emit_by_name (atk_parent, "children_changed::add",
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1, atk_child, NULL);
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return 1;
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}
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static gint
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gail_option_menu_real_remove_gtk (GtkContainer *container,
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GtkWidget *widget,
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gpointer data)
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{
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AtkPropertyValues values = { NULL };
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AtkObject* atk_parent = ATK_OBJECT (data);
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AtkObject *atk_child = gtk_widget_get_accessible (widget);
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g_value_init (&values.old_value, G_TYPE_POINTER);
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g_value_set_pointer (&values.old_value, atk_parent);
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values.property_name = "accessible-parent";
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g_signal_emit_by_name (atk_child,
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"property_change::accessible-parent", &values, NULL);
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g_signal_emit_by_name (atk_parent, "children_changed::remove",
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1, atk_child, NULL);
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return 1;
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}
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static void
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atk_action_interface_init (AtkActionIface *iface)
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{
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iface->do_action = gail_option_menu_do_action;
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iface->get_n_actions = gail_option_menu_get_n_actions;
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iface->get_description = gail_option_menu_get_description;
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iface->get_name = gail_option_menu_action_get_name;
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iface->set_description = gail_option_menu_set_description;
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}
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static gboolean
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gail_option_menu_do_action (AtkAction *action,
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gint i)
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{
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GtkWidget *widget;
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GailButton *button;
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gboolean return_value = TRUE;
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button = GAIL_BUTTON (action);
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widget = GTK_ACCESSIBLE (action)->widget;
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if (widget == NULL)
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/*
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* State is defunct
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*/
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return FALSE;
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if (!gtk_widget_get_sensitive (widget) || !gtk_widget_get_visible (widget))
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return FALSE;
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switch (i)
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{
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case 0:
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if (button->action_idle_handler)
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return_value = FALSE;
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else
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button->action_idle_handler = gdk_threads_add_idle (idle_do_action, button);
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break;
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default:
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return_value = FALSE;
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break;
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}
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return return_value;
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}
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static gboolean
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idle_do_action (gpointer data)
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{
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GtkButton *button;
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GtkWidget *widget;
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GdkEvent tmp_event;
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GailButton *gail_button;
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gail_button = GAIL_BUTTON (data);
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gail_button->action_idle_handler = 0;
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widget = GTK_ACCESSIBLE (gail_button)->widget;
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if (widget == NULL /* State is defunct */ ||
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!gtk_widget_get_sensitive (widget) || !gtk_widget_get_visible (widget))
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return FALSE;
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button = GTK_BUTTON (widget);
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button->in_button = TRUE;
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g_signal_emit_by_name (button, "enter");
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/*
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* Simulate a button press event. calling gtk_button_pressed() does
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* not get the job done for a GtkOptionMenu.
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*/
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tmp_event.button.type = GDK_BUTTON_PRESS;
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tmp_event.button.window = widget->window;
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tmp_event.button.button = 1;
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tmp_event.button.send_event = TRUE;
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tmp_event.button.time = GDK_CURRENT_TIME;
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tmp_event.button.axes = NULL;
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gtk_widget_event (widget, &tmp_event);
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return FALSE;
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}
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static gint
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gail_option_menu_get_n_actions (AtkAction *action)
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{
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return 1;
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}
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static G_CONST_RETURN gchar*
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gail_option_menu_get_description (AtkAction *action,
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gint i)
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{
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GailButton *button;
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G_CONST_RETURN gchar *return_value;
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button = GAIL_BUTTON (action);
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switch (i)
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{
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case 0:
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return_value = button->press_description;
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break;
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default:
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return_value = NULL;
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break;
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}
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return return_value;
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}
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static G_CONST_RETURN gchar*
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gail_option_menu_action_get_name (AtkAction *action,
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gint i)
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{
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G_CONST_RETURN gchar *return_value;
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switch (i)
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{
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case 0:
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/*
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* This action simulates a button press by simulating moving the
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* mouse into the button followed by pressing the left mouse button.
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*/
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return_value = "press";
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break;
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default:
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return_value = NULL;
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break;
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}
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return return_value;
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}
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static gboolean
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gail_option_menu_set_description (AtkAction *action,
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gint i,
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const gchar *desc)
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{
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GailButton *button;
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gchar **value;
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button = GAIL_BUTTON (action);
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switch (i)
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{
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case 0:
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value = &button->press_description;
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break;
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default:
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value = NULL;
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break;
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}
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if (value)
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{
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g_free (*value);
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*value = g_strdup (desc);
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return TRUE;
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}
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else
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return FALSE;
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}
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static void
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gail_option_menu_changed (GtkOptionMenu *option_menu)
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{
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GailOptionMenu *gail_option_menu;
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gail_option_menu = GAIL_OPTION_MENU (gtk_widget_get_accessible (GTK_WIDGET (option_menu)));
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g_object_notify (G_OBJECT (gail_option_menu), "accessible-name");
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}
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