spi-common/spi-stateset.c

   1 /*
   2  * AT-SPI - Assistive Technology Service Provider Interface
   3  * (Gnome Accessibility Project; http://developer.gnome.org/projects/gap)
   4  *
   5  * Copyright 2001, 2002 Sun Microsystems Inc.,
   6  * Copyright 2001, 2002 Ximian, Inc.
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Library General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Library General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Library General Public
  19  * License along with this library; if not, write to the
  20  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  21  * Boston, MA 02111-1307, USA.
  22  */
  23
  24 /* stateset.c : implements the StateSet interface */
  25
  26 #include <config.h>
  27 #include <stdio.h>
  28 #include "spi-stateset.h"
  29 #include "bitarray.h"
  30
  31
  32 static Accessibility_StateType *accessible_state_types = NULL;
  33 static AtkStateType *atk_state_types = NULL;
  34
  35
  36 static gboolean
  37 spi_init_state_type_tables (void)
  38 {
  39   gint i;
  40
  41   if (accessible_state_types || atk_state_types)
  42     return FALSE;
  43   if (!accessible_state_types)
  44     accessible_state_types = g_new (Accessibility_StateType, ATK_STATE_LAST_DEFINED);
  45   if (!atk_state_types)
  46     atk_state_types = g_new (AtkStateType, Accessibility_STATE_LAST_DEFINED);
  47   g_return_val_if_fail (accessible_state_types, FALSE);
  48   g_return_val_if_fail (atk_state_types, FALSE);
  49
  50   for (i = 0; i < Accessibility_STATE_LAST_DEFINED; i++)
  51     {
  52       atk_state_types[i] = ATK_STATE_INVALID;
  53     }
  54
  55   for (i=0; i < ATK_STATE_LAST_DEFINED; i++)
  56     {
  57       accessible_state_types[i] = Accessibility_STATE_INVALID;
  58     }
  59
  60   accessible_state_types[ATK_STATE_ACTIVE] = Accessibility_STATE_ACTIVE;
  61   atk_state_types[Accessibility_STATE_ACTIVE] = ATK_STATE_ACTIVE;
  62   accessible_state_types[ATK_STATE_ARMED] = Accessibility_STATE_ARMED;
  63   atk_state_types[Accessibility_STATE_ARMED] = ATK_STATE_ARMED;
  64   accessible_state_types[ATK_STATE_BUSY] = Accessibility_STATE_BUSY;
  65   atk_state_types[Accessibility_STATE_BUSY] = ATK_STATE_BUSY;
  66   accessible_state_types[ATK_STATE_CHECKED] = Accessibility_STATE_CHECKED;
  67   atk_state_types[Accessibility_STATE_CHECKED] = ATK_STATE_CHECKED;
  68   accessible_state_types[ATK_STATE_DEFUNCT] = Accessibility_STATE_DEFUNCT;
  69   atk_state_types[Accessibility_STATE_DEFUNCT] = ATK_STATE_DEFUNCT;
  70   accessible_state_types[ATK_STATE_EDITABLE] = Accessibility_STATE_EDITABLE;
  71   atk_state_types[Accessibility_STATE_EDITABLE] = ATK_STATE_EDITABLE;
  72   accessible_state_types[ATK_STATE_ENABLED] = Accessibility_STATE_ENABLED;
  73   atk_state_types[Accessibility_STATE_ENABLED] = ATK_STATE_ENABLED;
  74   accessible_state_types[ATK_STATE_EXPANDABLE] = Accessibility_STATE_EXPANDABLE;
  75   atk_state_types[Accessibility_STATE_EXPANDABLE] = ATK_STATE_EXPANDABLE;
  76   accessible_state_types[ATK_STATE_EXPANDED] = Accessibility_STATE_EXPANDED;
  77   atk_state_types[Accessibility_STATE_EXPANDED] = ATK_STATE_EXPANDED;
  78   accessible_state_types[ATK_STATE_FOCUSABLE] = Accessibility_STATE_FOCUSABLE;
  79   atk_state_types[Accessibility_STATE_FOCUSABLE] = ATK_STATE_FOCUSABLE;
  80   accessible_state_types[ATK_STATE_FOCUSED] = Accessibility_STATE_FOCUSED;
  81   atk_state_types[Accessibility_STATE_FOCUSED] = ATK_STATE_FOCUSED;
  82   accessible_state_types[ATK_STATE_HORIZONTAL] = Accessibility_STATE_HORIZONTAL;
  83   atk_state_types[Accessibility_STATE_HORIZONTAL] = ATK_STATE_HORIZONTAL;
  84   accessible_state_types[ATK_STATE_ICONIFIED] = Accessibility_STATE_ICONIFIED;
  85   atk_state_types[Accessibility_STATE_ICONIFIED] = ATK_STATE_ICONIFIED;
  86   accessible_state_types[ATK_STATE_MODAL] = Accessibility_STATE_MODAL;
  87   atk_state_types[Accessibility_STATE_MODAL] = ATK_STATE_MODAL;
  88   accessible_state_types[ATK_STATE_MULTI_LINE] = Accessibility_STATE_MULTI_LINE;
  89   atk_state_types[Accessibility_STATE_MULTI_LINE] = ATK_STATE_MULTI_LINE;
  90   accessible_state_types[ATK_STATE_MULTISELECTABLE] = Accessibility_STATE_MULTISELECTABLE;
  91   atk_state_types[Accessibility_STATE_MULTISELECTABLE] = ATK_STATE_MULTISELECTABLE;
  92   accessible_state_types[ATK_STATE_OPAQUE] = Accessibility_STATE_OPAQUE;
  93   atk_state_types[Accessibility_STATE_OPAQUE] = ATK_STATE_OPAQUE;
  94   accessible_state_types[ATK_STATE_PRESSED] = Accessibility_STATE_PRESSED;
  95   atk_state_types[Accessibility_STATE_PRESSED] = ATK_STATE_PRESSED;
  96   accessible_state_types[ATK_STATE_RESIZABLE] = Accessibility_STATE_RESIZABLE;
  97   atk_state_types[Accessibility_STATE_RESIZABLE] = ATK_STATE_RESIZABLE;
  98   accessible_state_types[ATK_STATE_SELECTABLE] = Accessibility_STATE_SELECTABLE;
  99   atk_state_types[Accessibility_STATE_SELECTABLE] = ATK_STATE_SELECTABLE;
 100   accessible_state_types[ATK_STATE_SELECTED] = Accessibility_STATE_SELECTED;
 101   atk_state_types[Accessibility_STATE_SELECTED] = ATK_STATE_SELECTED;
 102   accessible_state_types[ATK_STATE_SENSITIVE] = Accessibility_STATE_SENSITIVE;
 103   atk_state_types[Accessibility_STATE_SENSITIVE] = ATK_STATE_SENSITIVE;
 104   accessible_state_types[ATK_STATE_SHOWING] = Accessibility_STATE_SHOWING;
 105   atk_state_types[Accessibility_STATE_SHOWING] = ATK_STATE_SHOWING;
 106   accessible_state_types[ATK_STATE_SINGLE_LINE] = Accessibility_STATE_SINGLE_LINE;
 107   atk_state_types[Accessibility_STATE_SINGLE_LINE] = ATK_STATE_SINGLE_LINE;
 108   accessible_state_types[ATK_STATE_STALE] = Accessibility_STATE_STALE;
 109   atk_state_types[Accessibility_STATE_STALE] = ATK_STATE_STALE;
 110   accessible_state_types[ATK_STATE_TRANSIENT] = Accessibility_STATE_TRANSIENT;
 111   atk_state_types[Accessibility_STATE_TRANSIENT] = ATK_STATE_TRANSIENT;
 112   accessible_state_types[ATK_STATE_VERTICAL] = Accessibility_STATE_VERTICAL;
 113   atk_state_types[Accessibility_STATE_VERTICAL] = ATK_STATE_VERTICAL;
 114   accessible_state_types[ATK_STATE_VISIBLE] = Accessibility_STATE_VISIBLE;
 115   atk_state_types[Accessibility_STATE_VISIBLE] = ATK_STATE_VISIBLE;
 116   accessible_state_types[ATK_STATE_MANAGES_DESCENDANTS] = Accessibility_STATE_MANAGES_DESCENDANTS;
 117   atk_state_types[Accessibility_STATE_MANAGES_DESCENDANTS] = ATK_STATE_MANAGES_DESCENDANTS;
 118   accessible_state_types[ATK_STATE_INDETERMINATE] = Accessibility_STATE_INDETERMINATE;
 119   atk_state_types[Accessibility_STATE_INDETERMINATE] = ATK_STATE_INDETERMINATE;
 120   accessible_state_types[ATK_STATE_TRUNCATED] = Accessibility_STATE_TRUNCATED;
 121   atk_state_types[Accessibility_STATE_TRUNCATED] = ATK_STATE_TRUNCATED;
 122   accessible_state_types[ATK_STATE_REQUIRED] = Accessibility_STATE_REQUIRED;
 123   atk_state_types[Accessibility_STATE_REQUIRED] = ATK_STATE_REQUIRED;
 124   accessible_state_types[ATK_STATE_INVALID_ENTRY] = Accessibility_STATE_INVALID_ENTRY;
 125   atk_state_types[Accessibility_STATE_INVALID_ENTRY] = ATK_STATE_INVALID_ENTRY;
 126   accessible_state_types[ATK_STATE_SUPPORTS_AUTOCOMPLETION] = Accessibility_STATE_SUPPORTS_AUTOCOMPLETION;
 127   atk_state_types[Accessibility_STATE_SUPPORTS_AUTOCOMPLETION] = ATK_STATE_SUPPORTS_AUTOCOMPLETION;
 128   accessible_state_types[ATK_STATE_SELECTABLE_TEXT] = Accessibility_STATE_SELECTABLE_TEXT;
 129   atk_state_types[Accessibility_STATE_SELECTABLE_TEXT] = ATK_STATE_SELECTABLE_TEXT;
 130   accessible_state_types[ATK_STATE_DEFAULT] = Accessibility_STATE_IS_DEFAULT;
 131   atk_state_types[Accessibility_STATE_IS_DEFAULT] = ATK_STATE_DEFAULT;
 132   accessible_state_types[ATK_STATE_VISITED] = Accessibility_STATE_VISITED;
 133   atk_state_types[Accessibility_STATE_VISITED] = ATK_STATE_VISITED;
 134
 135
 136   return TRUE;
 137 }
 138
 139 static inline AtkState
 140 state_spi_to_atk (Accessibility_StateType state)
 141 {
 142   guint idx = state;
 143   if (idx < Accessibility_STATE_LAST_DEFINED)
 144     return atk_state_types [idx];
 145   else
 146     return ATK_STATE_INVALID;
 147 }
 148
 149 AtkState
 150 spi_atk_state_from_spi_state (Accessibility_StateType state)
 151 {
 152   spi_init_state_type_tables ();
 153   return state_spi_to_atk (state);
 154 }
 155
 156 AtkStateSet *
 157 spi_state_set_cache_from_sequence (const GArray *seq)
 158 {
 159   int i;
 160   AtkStateSet *set;
 161   AtkStateType *states;
 162
 163   spi_init_state_type_tables ();
 164
 165   states = g_newa (AtkStateType, seq->len);
 166   for (i = 0; i < seq->len; i++)
 167     states [i] = state_spi_to_atk (g_array_index (seq, dbus_int32_t, i));
 168
 169   set = atk_state_set_new ();
 170   atk_state_set_add_states (set, states, seq->len);
 171
 172   g_array_free (seq, TRUE);
 173   return set;
 174 }
 175
 176 void
 177 spi_atk_state_to_dbus_array (AtkObject * object, dbus_uint32_t * array)
 178 {
 179   AtkStateSet *set = atk_object_ref_state_set (object);
 180   int i;
 181
 182   array[0] = 0;
 183   array[1] = 0;
 184   if (!set)
 185     return;
 186   spi_init_state_type_tables ();
 187
 188   g_assert (ATK_STATE_LAST_DEFINED <= 64);
 189   for (i = 0; i < ATK_STATE_LAST_DEFINED; i++)
 190     {
 191       if (atk_state_set_contains_state (set, i))
 192         {
 193           int a = accessible_state_types[i];
 194           g_assert (a < 64);
 195           BITARRAY_SET (array, a);
 196         }
 197     }
 198   g_object_unref (set);
 199 }