gtkexpanderaccessible.c 7.61 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14
/* GAIL - The GNOME Accessibility Implementation Library
 * Copyright 2003 Sun Microsystems Inc.
 *
 * 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 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
Javier Jardón's avatar
Javier Jardón committed
15
 * License along with this library. If not, see <http://www.gnu.org/licenses/>.
16 17 18 19 20 21 22 23 24
 */

#include "config.h"

#include <gtk/gtk.h>
#include "gtkexpanderaccessible.h"

static void atk_action_interface_init (AtkActionIface *iface);

25
G_DEFINE_TYPE_WITH_CODE (GtkExpanderAccessible, _gtk_expander_accessible, GTK_TYPE_CONTAINER_ACCESSIBLE,
26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
                         G_IMPLEMENT_INTERFACE (ATK_TYPE_ACTION, atk_action_interface_init))

static const gchar *
gtk_expander_accessible_get_full_text (GtkExpander *widget)
{
  GtkWidget *label_widget;

  label_widget = gtk_expander_get_label_widget (widget);

  if (!GTK_IS_LABEL (label_widget))
    return NULL;

  return gtk_label_get_text (GTK_LABEL (label_widget));
}

static const gchar *
gtk_expander_accessible_get_name (AtkObject *obj)
{
  GtkWidget *widget;
  const gchar *name;

  widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (obj));
  if (widget == NULL)
    return NULL;

51
  name = ATK_OBJECT_CLASS (_gtk_expander_accessible_parent_class)->get_name (obj);
52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78
  if (name != NULL)
    return name;

  return gtk_expander_accessible_get_full_text (GTK_EXPANDER (widget));
}

static gint
gtk_expander_accessible_get_n_children (AtkObject *obj)
{
  GtkWidget *widget;
  GList *children;
  gint count = 0;

  widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (obj));
  if (widget == NULL)
    return 0;

  children = gtk_container_get_children (GTK_CONTAINER(widget));
  count = g_list_length (children);
  g_list_free (children);

  /* See if there is a label - if there is, reduce our count by 1
   * since we don't want the label included with the children.
   */
  if (gtk_expander_get_label_widget (GTK_EXPANDER (widget)))
    count -= 1;

79
  return count;
80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131
}

static AtkObject *
gtk_expander_accessible_ref_child (AtkObject *obj,
                                   gint       i)
{
  GList *children, *tmp_list;
  AtkObject *accessible;
  GtkWidget *widget;
  GtkWidget *label;
  gint index;

  widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (obj));
  if (widget == NULL)
    return NULL;

  children = gtk_container_get_children (GTK_CONTAINER (widget));

  /* See if there is a label - if there is, we need to skip it
   * since we don't want the label included with the children.
   */
  label = gtk_expander_get_label_widget (GTK_EXPANDER (widget));
  if (label)
    {
      for (index = 0; index <= i; index++)
        {
          tmp_list = g_list_nth (children, index);
          if (label == GTK_WIDGET (tmp_list->data))
            {
              i += 1;
              break;
            }
        }
    }

  tmp_list = g_list_nth (children, i);
  if (!tmp_list)
    {
      g_list_free (children);
      return NULL;
    }
  accessible = gtk_widget_get_accessible (GTK_WIDGET (tmp_list->data));

  g_list_free (children);
  g_object_ref (accessible);
  return accessible;
}

static void
gtk_expander_accessible_initialize (AtkObject *obj,
                                    gpointer   data)
{
132
  ATK_OBJECT_CLASS (_gtk_expander_accessible_parent_class)->initialize (obj, data);
133 134 135 136 137 138 139 140 141 142 143 144 145 146

  obj->role = ATK_ROLE_TOGGLE_BUTTON;
}

static void
gtk_expander_accessible_notify_gtk (GObject    *obj,
                                    GParamSpec *pspec)
{
  AtkObject* atk_obj;
  GtkExpander *expander;

  expander = GTK_EXPANDER (obj);
  atk_obj = gtk_widget_get_accessible (GTK_WIDGET (expander));
;
Matthias Clasen's avatar
Matthias Clasen committed
147
  if (g_strcmp0 (pspec->name, "label") == 0)
148 149 150
    {
      if (atk_obj->name == NULL)
        g_object_notify (G_OBJECT (atk_obj), "accessible-name");
Matthias Clasen's avatar
Matthias Clasen committed
151
      g_signal_emit_by_name (atk_obj, "visible-data-changed");
152
    }
Matthias Clasen's avatar
Matthias Clasen committed
153
  else if (g_strcmp0 (pspec->name, "expanded") == 0)
154 155 156 157 158
    {
      atk_object_notify_state_change (atk_obj, ATK_STATE_CHECKED,
                                      gtk_expander_get_expanded (expander));
      atk_object_notify_state_change (atk_obj, ATK_STATE_EXPANDED,
                                      gtk_expander_get_expanded (expander));
Matthias Clasen's avatar
Matthias Clasen committed
159
      g_signal_emit_by_name (atk_obj, "visible-data-changed");
160 161
    }
  else
162
    GTK_WIDGET_ACCESSIBLE_CLASS (_gtk_expander_accessible_parent_class)->notify_gtk (obj, pspec);
163 164
}

165
static AtkStateSet *
166 167 168 169 170 171 172 173 174 175
gtk_expander_accessible_ref_state_set (AtkObject *obj)
{
  AtkStateSet *state_set;
  GtkWidget *widget;
  GtkExpander *expander;

  widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (obj));
  if (widget == NULL)
    return NULL;

176
  state_set = ATK_OBJECT_CLASS (_gtk_expander_accessible_parent_class)->ref_state_set (obj);
177 178 179 180 181 182 183 184 185 186 187 188 189 190 191

  expander = GTK_EXPANDER (widget);

  atk_state_set_add_state (state_set, ATK_STATE_EXPANDABLE);

  if (gtk_expander_get_expanded (expander))
    {
      atk_state_set_add_state (state_set, ATK_STATE_CHECKED);
      atk_state_set_add_state (state_set, ATK_STATE_EXPANDED);
    }

  return state_set;
}

static void
192
_gtk_expander_accessible_class_init (GtkExpanderAccessibleClass *klass)
193 194
{
  AtkObjectClass *class = ATK_OBJECT_CLASS (klass);
195
  GtkWidgetAccessibleClass *widget_class = (GtkWidgetAccessibleClass*)klass;
196 197 198 199 200 201 202 203 204 205 206 207

  widget_class->notify_gtk = gtk_expander_accessible_notify_gtk;

  class->get_name = gtk_expander_accessible_get_name;
  class->get_n_children = gtk_expander_accessible_get_n_children;
  class->ref_child = gtk_expander_accessible_ref_child;
  class->ref_state_set = gtk_expander_accessible_ref_state_set;

  class->initialize = gtk_expander_accessible_initialize;
}

static void
208
_gtk_expander_accessible_init (GtkExpanderAccessible *expander)
209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225
{
}

static gboolean
gtk_expander_accessible_do_action (AtkAction *action,
                                   gint       i)
{
  GtkWidget *widget;

  widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (action));
  if (widget == NULL)
    return FALSE;

  if (!gtk_widget_is_sensitive (widget) || !gtk_widget_get_visible (widget))
    return FALSE;

  if (i != 0)
226
    return FALSE;
227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283

  gtk_widget_activate (widget);
  return TRUE;
}

static gint
gtk_expander_accessible_get_n_actions (AtkAction *action)
{
  return 1;
}

static const gchar *
gtk_expander_accessible_get_keybinding (AtkAction *action,
                                        gint       i)
{
  gchar *return_value = NULL;
  GtkWidget *widget;
  GtkWidget *label;

  widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (action));
  if (widget == NULL)
    return NULL;

  if (i != 0)
    return NULL;

  label = gtk_expander_get_label_widget (GTK_EXPANDER (widget));
  if (GTK_IS_LABEL (label))
    {
      guint key_val;

      key_val = gtk_label_get_mnemonic_keyval (GTK_LABEL (label));
      if (key_val != GDK_KEY_VoidSymbol)
        return_value = gtk_accelerator_name (key_val, GDK_MOD1_MASK);
    }

  return return_value;
}

static const gchar *
gtk_expander_accessible_action_get_name (AtkAction *action,
                                         gint       i)
{
  if (i != 0)
    return NULL;

  return "activate";
}

static void
atk_action_interface_init (AtkActionIface *iface)
{
  iface->do_action = gtk_expander_accessible_do_action;
  iface->get_n_actions = gtk_expander_accessible_get_n_actions;
  iface->get_keybinding = gtk_expander_accessible_get_keybinding;
  iface->get_name = gtk_expander_accessible_action_get_name;
}