gtkflowboxaccessible.c 6.61 KB
Newer Older
Matthias Clasen's avatar
Matthias Clasen committed
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 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 51 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 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254
/*
 * Copyright (C) 2013 Red Hat, 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
 * License along with this library. If not, see <http://www.gnu.org/licenses/>.
 */

#include "config.h"

#include "gtkflowboxaccessibleprivate.h"

#include "gtk/gtkflowbox.h"

static void atk_selection_interface_init (AtkSelectionIface *iface);

G_DEFINE_TYPE_WITH_CODE (GtkFlowBoxAccessible, gtk_flow_box_accessible, GTK_TYPE_CONTAINER_ACCESSIBLE,
                         G_IMPLEMENT_INTERFACE (ATK_TYPE_SELECTION, atk_selection_interface_init))

static void
gtk_flow_box_accessible_init (GtkFlowBoxAccessible *accessible)
{
}

static void
gtk_flow_box_accessible_initialize (AtkObject *obj,
                                    gpointer   data)
{
  ATK_OBJECT_CLASS (gtk_flow_box_accessible_parent_class)->initialize (obj, data);

  obj->role = ATK_ROLE_TABLE;
}

static AtkStateSet*
gtk_flow_box_accessible_ref_state_set (AtkObject *obj)
{
  AtkStateSet *state_set;
  GtkWidget *widget;

  state_set = ATK_OBJECT_CLASS (gtk_flow_box_accessible_parent_class)->ref_state_set (obj);
  widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (obj));

  if (widget != NULL)
    atk_state_set_add_state (state_set, ATK_STATE_MANAGES_DESCENDANTS);

  return state_set;
}

static void
gtk_flow_box_accessible_class_init (GtkFlowBoxAccessibleClass *klass)
{
  AtkObjectClass *object_class = ATK_OBJECT_CLASS (klass);

  object_class->initialize = gtk_flow_box_accessible_initialize;
  object_class->ref_state_set = gtk_flow_box_accessible_ref_state_set;
}

static gboolean
gtk_flow_box_accessible_add_selection (AtkSelection *selection,
                                       gint          idx)
{
  GtkWidget *box;
  GList *children;
  GtkWidget *child;

  box = gtk_accessible_get_widget (GTK_ACCESSIBLE (selection));
  if (box == NULL)
    return FALSE;

  children = gtk_container_get_children (GTK_CONTAINER (box));
  child = g_list_nth_data (children, idx);
  g_list_free (children);
  if (child)
    {
      gtk_flow_box_select_child (GTK_FLOW_BOX (box), GTK_FLOW_BOX_CHILD (child));
      return TRUE;
    }
  return FALSE;
}

static gboolean
gtk_flow_box_accessible_remove_selection (AtkSelection *selection,
                                          gint          idx)
{
  GtkWidget *box;
  GList *children;
  GtkWidget *child;

  box = gtk_accessible_get_widget (GTK_ACCESSIBLE (selection));
  if (box == NULL)
    return FALSE;

  children = gtk_container_get_children (GTK_CONTAINER (box));
  child = g_list_nth_data (children, idx);
  g_list_free (children);
  if (child)
    {
      gtk_flow_box_unselect_child (GTK_FLOW_BOX (box), GTK_FLOW_BOX_CHILD (child));
      return TRUE;
    }
  return FALSE;
}

static gboolean
gtk_flow_box_accessible_clear_selection (AtkSelection *selection)
{
  GtkWidget *box;

  box = gtk_accessible_get_widget (GTK_ACCESSIBLE (selection));
  if (box == NULL)
    return FALSE;

  gtk_flow_box_unselect_all (GTK_FLOW_BOX (box));
  return TRUE;
}

static gboolean
gtk_flow_box_accessible_select_all (AtkSelection *selection)
{
  GtkWidget *box;

  box = gtk_accessible_get_widget (GTK_ACCESSIBLE (selection));
  if (box == NULL)
    return FALSE;

  gtk_flow_box_select_all (GTK_FLOW_BOX (box));
  return TRUE;
}

typedef struct
{
  gint idx;
  GtkWidget *child;
} FindSelectedData;

static void
find_selected_child (GtkFlowBox      *box,
                     GtkFlowBoxChild *child,
                     gpointer         data)
{
  FindSelectedData *d = data;

  if (d->idx == 0)
    {
      if (d->child == NULL)
        d->child = GTK_WIDGET (child);
    }
  else
    d->idx -= 1;
}

static AtkObject *
gtk_flow_box_accessible_ref_selection (AtkSelection *selection,
                                       gint          idx)
{
  GtkWidget *box;
  AtkObject *accessible;
  FindSelectedData data;

  box = gtk_accessible_get_widget (GTK_ACCESSIBLE (selection));
  if (box == NULL)
    return NULL;

  data.idx = idx;
  data.child = NULL;
  gtk_flow_box_selected_foreach (GTK_FLOW_BOX (box), find_selected_child, &data);

  if (data.child == NULL)
    return NULL;

  accessible = gtk_widget_get_accessible (data.child);
  g_object_ref (accessible);
  return accessible;
}

static void
count_selected (GtkFlowBox      *box,
                GtkFlowBoxChild *child,
                gpointer         data)
{
  gint *count = data;
  *count += 1;
}

static gint
gtk_flow_box_accessible_get_selection_count (AtkSelection *selection)
{
  GtkWidget *box;
  gint count;

  box = gtk_accessible_get_widget (GTK_ACCESSIBLE (selection));
  if (box == NULL)
    return 0;

  count = 0;
  gtk_flow_box_selected_foreach (GTK_FLOW_BOX (box), count_selected, &count);

  return count;
}

static gboolean
gtk_flow_box_accessible_is_child_selected (AtkSelection *selection,
                                           gint          idx)
{
  GtkWidget *box;
  GtkFlowBoxChild *child;

  box = gtk_accessible_get_widget (GTK_ACCESSIBLE (selection));
  if (box == NULL)
    return FALSE;

  child = gtk_flow_box_get_child_at_index (GTK_FLOW_BOX (box), idx);

  return gtk_flow_box_child_is_selected (child);
}

static void atk_selection_interface_init (AtkSelectionIface *iface)
{
  iface->add_selection = gtk_flow_box_accessible_add_selection;
  iface->remove_selection = gtk_flow_box_accessible_remove_selection;
  iface->clear_selection = gtk_flow_box_accessible_clear_selection;
  iface->ref_selection = gtk_flow_box_accessible_ref_selection;
  iface->get_selection_count = gtk_flow_box_accessible_get_selection_count;
  iface->is_child_selected = gtk_flow_box_accessible_is_child_selected;
  iface->select_all_selection = gtk_flow_box_accessible_select_all;
}

void
_gtk_flow_box_accessible_selection_changed (GtkWidget *box)
{
  AtkObject *accessible;
  accessible = gtk_widget_get_accessible (box);
  g_signal_emit_by_name (accessible, "selection-changed");
}

void
_gtk_flow_box_accessible_update_cursor (GtkWidget *box,
                                        GtkWidget *child)
{
  AtkObject *accessible;
  AtkObject *descendant;
  accessible = gtk_widget_get_accessible (box);
  descendant = child ? gtk_widget_get_accessible (child) : NULL;
  g_signal_emit_by_name (accessible, "active-descendant-changed", descendant);
}