forked from AuroraMiddleware/gtk
287 lines
7.7 KiB
C
287 lines
7.7 KiB
C
/* GAIL - The GNOME Accessibility Implementation Library
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* Copyright 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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#include <gtk/gtk.h>
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#include "gtkexpanderaccessible.h"
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static void atk_action_interface_init (AtkActionIface *iface);
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G_DEFINE_TYPE_WITH_CODE (GtkExpanderAccessible, gtk_expander_accessible, GTK_TYPE_CONTAINER_ACCESSIBLE,
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G_IMPLEMENT_INTERFACE (ATK_TYPE_ACTION, atk_action_interface_init))
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static const gchar *
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gtk_expander_accessible_get_full_text (GtkExpander *widget)
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{
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GtkWidget *label_widget;
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label_widget = gtk_expander_get_label_widget (widget);
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if (!GTK_IS_LABEL (label_widget))
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return NULL;
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return gtk_label_get_text (GTK_LABEL (label_widget));
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}
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static const gchar *
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gtk_expander_accessible_get_name (AtkObject *obj)
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{
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GtkWidget *widget;
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const gchar *name;
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widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (obj));
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if (widget == NULL)
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return NULL;
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name = ATK_OBJECT_CLASS (gtk_expander_accessible_parent_class)->get_name (obj);
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if (name != NULL)
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return name;
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return gtk_expander_accessible_get_full_text (GTK_EXPANDER (widget));
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}
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static gint
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gtk_expander_accessible_get_n_children (AtkObject *obj)
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{
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GtkWidget *widget;
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GList *children;
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gint count = 0;
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widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (obj));
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if (widget == NULL)
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return 0;
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children = gtk_container_get_children (GTK_CONTAINER(widget));
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count = g_list_length (children);
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g_list_free (children);
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/* See if there is a label - if there is, reduce our count by 1
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* since we don't want the label included with the children.
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*/
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if (gtk_expander_get_label_widget (GTK_EXPANDER (widget)))
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count -= 1;
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return count;
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}
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static AtkObject *
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gtk_expander_accessible_ref_child (AtkObject *obj,
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gint i)
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{
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GList *children, *tmp_list;
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AtkObject *accessible;
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GtkWidget *widget;
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GtkWidget *label;
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gint index;
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widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (obj));
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if (widget == NULL)
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return NULL;
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children = gtk_container_get_children (GTK_CONTAINER (widget));
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/* See if there is a label - if there is, we need to skip it
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* since we don't want the label included with the children.
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*/
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label = gtk_expander_get_label_widget (GTK_EXPANDER (widget));
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if (label)
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{
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for (index = 0; index <= i; index++)
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{
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tmp_list = g_list_nth (children, index);
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if (label == GTK_WIDGET (tmp_list->data))
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{
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i += 1;
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break;
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}
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}
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}
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tmp_list = g_list_nth (children, i);
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if (!tmp_list)
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{
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g_list_free (children);
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return NULL;
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}
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accessible = gtk_widget_get_accessible (GTK_WIDGET (tmp_list->data));
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g_list_free (children);
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g_object_ref (accessible);
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return accessible;
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}
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static void
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gtk_expander_accessible_initialize (AtkObject *obj,
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gpointer data)
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{
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ATK_OBJECT_CLASS (gtk_expander_accessible_parent_class)->initialize (obj, data);
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obj->role = ATK_ROLE_TOGGLE_BUTTON;
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}
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static void
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gtk_expander_accessible_notify_gtk (GObject *obj,
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GParamSpec *pspec)
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{
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AtkObject* atk_obj;
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GtkExpander *expander;
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expander = GTK_EXPANDER (obj);
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atk_obj = gtk_widget_get_accessible (GTK_WIDGET (expander));
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;
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if (strcmp (pspec->name, "label") == 0)
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{
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if (atk_obj->name == NULL)
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g_object_notify (G_OBJECT (atk_obj), "accessible-name");
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g_signal_emit_by_name (atk_obj, "visible_data_changed");
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}
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else if (strcmp (pspec->name, "expanded") == 0)
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{
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atk_object_notify_state_change (atk_obj, ATK_STATE_CHECKED,
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gtk_expander_get_expanded (expander));
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atk_object_notify_state_change (atk_obj, ATK_STATE_EXPANDED,
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gtk_expander_get_expanded (expander));
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g_signal_emit_by_name (atk_obj, "visible_data_changed");
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}
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else
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GTK_WIDGET_ACCESSIBLE_CLASS (gtk_expander_accessible_parent_class)->notify_gtk (obj, pspec);
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}
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static AtkStateSet*
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gtk_expander_accessible_ref_state_set (AtkObject *obj)
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{
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AtkStateSet *state_set;
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GtkWidget *widget;
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GtkExpander *expander;
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widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (obj));
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if (widget == NULL)
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return NULL;
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state_set = ATK_OBJECT_CLASS (gtk_expander_accessible_parent_class)->ref_state_set (obj);
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expander = GTK_EXPANDER (widget);
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atk_state_set_add_state (state_set, ATK_STATE_EXPANDABLE);
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if (gtk_expander_get_expanded (expander))
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{
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atk_state_set_add_state (state_set, ATK_STATE_CHECKED);
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atk_state_set_add_state (state_set, ATK_STATE_EXPANDED);
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}
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return state_set;
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}
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static void
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gtk_expander_accessible_class_init (GtkExpanderAccessibleClass *klass)
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{
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AtkObjectClass *class = ATK_OBJECT_CLASS (klass);
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GtkWidgetAccessibleClass *widget_class = (GtkWidgetAccessibleClass*)klass;
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widget_class->notify_gtk = gtk_expander_accessible_notify_gtk;
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class->get_name = gtk_expander_accessible_get_name;
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class->get_n_children = gtk_expander_accessible_get_n_children;
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class->ref_child = gtk_expander_accessible_ref_child;
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class->ref_state_set = gtk_expander_accessible_ref_state_set;
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class->initialize = gtk_expander_accessible_initialize;
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}
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static void
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gtk_expander_accessible_init (GtkExpanderAccessible *expander)
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{
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}
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static gboolean
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gtk_expander_accessible_do_action (AtkAction *action,
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gint i)
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{
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GtkWidget *widget;
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widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (action));
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if (widget == NULL)
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return FALSE;
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if (!gtk_widget_is_sensitive (widget) || !gtk_widget_get_visible (widget))
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return FALSE;
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if (i != 0)
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return FALSE;
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gtk_widget_activate (widget);
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return TRUE;
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}
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static gint
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gtk_expander_accessible_get_n_actions (AtkAction *action)
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{
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return 1;
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}
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static const gchar *
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gtk_expander_accessible_get_keybinding (AtkAction *action,
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gint i)
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{
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gchar *return_value = NULL;
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GtkWidget *widget;
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GtkWidget *label;
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widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (action));
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if (widget == NULL)
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return NULL;
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if (i != 0)
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return NULL;
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label = gtk_expander_get_label_widget (GTK_EXPANDER (widget));
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if (GTK_IS_LABEL (label))
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{
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guint key_val;
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key_val = gtk_label_get_mnemonic_keyval (GTK_LABEL (label));
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if (key_val != GDK_KEY_VoidSymbol)
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return_value = gtk_accelerator_name (key_val, GDK_MOD1_MASK);
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}
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return return_value;
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}
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static const gchar *
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gtk_expander_accessible_action_get_name (AtkAction *action,
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gint i)
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{
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if (i != 0)
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return NULL;
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return "activate";
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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 = gtk_expander_accessible_do_action;
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iface->get_n_actions = gtk_expander_accessible_get_n_actions;
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iface->get_keybinding = gtk_expander_accessible_get_keybinding;
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iface->get_name = gtk_expander_accessible_action_get_name;
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}
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