libspi/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 Sun Microsystems Inc.
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Library General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Library General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Library General Public
  18  * License along with this library; if not, write to the
  19  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  20  * Boston, MA 02111-1307, USA.
  21  */
  22
  23 /* stateset.c : implements the StateSet interface */
  24
  25 #include <config.h>
  26 #include <stdio.h>
  27 #include <libspi/stateset.h>
  28
  29
  30 static Accessibility_StateType *accessible_state_types = NULL;
  31 static AtkStateType *atk_state_types = NULL;
  32
  33
  34 static gboolean
  35 spi_init_state_type_tables (void)
  36 {
  37   gint i;
  38
  39   g_return_val_if_fail (accessible_state_types, FALSE);
  40   g_return_val_if_fail (atk_state_types, FALSE);
  41
  42   accessible_state_types = g_new (Accessibility_StateType, ATK_STATE_LAST_DEFINED);
  43   atk_state_types = g_new (AtkStateType, ATK_STATE_LAST_DEFINED);
  44
  45   for (i = 0; i < ATK_STATE_LAST_DEFINED; i++)
  46     {
  47       atk_state_types[i] = ATK_STATE_INVALID;
  48       accessible_state_types[i] = Accessibility_STATE_INVALID;
  49     }
  50
  51   accessible_state_types[ATK_STATE_ACTIVE] = Accessibility_STATE_ACTIVE;
  52   atk_state_types[Accessibility_STATE_ACTIVE] = ATK_STATE_ACTIVE;
  53   accessible_state_types[ATK_STATE_ARMED] = Accessibility_STATE_ARMED;
  54   atk_state_types[Accessibility_STATE_ARMED] = ATK_STATE_ARMED;
  55   accessible_state_types[ATK_STATE_BUSY] = Accessibility_STATE_BUSY;
  56   atk_state_types[Accessibility_STATE_BUSY] = ATK_STATE_BUSY;
  57   accessible_state_types[ATK_STATE_CHECKED] = Accessibility_STATE_CHECKED;
  58   atk_state_types[Accessibility_STATE_CHECKED] = ATK_STATE_CHECKED;
  59   accessible_state_types[ATK_STATE_DEFUNCT] = Accessibility_STATE_DEFUNCT;
  60   atk_state_types[Accessibility_STATE_DEFUNCT] = ATK_STATE_DEFUNCT;
  61   accessible_state_types[ATK_STATE_EDITABLE] = Accessibility_STATE_EDITABLE;
  62   atk_state_types[Accessibility_STATE_EDITABLE] = ATK_STATE_EDITABLE;
  63   accessible_state_types[ATK_STATE_ENABLED] = Accessibility_STATE_ENABLED;
  64   atk_state_types[Accessibility_STATE_ENABLED] = ATK_STATE_ENABLED;
  65   accessible_state_types[ATK_STATE_EXPANDABLE] = Accessibility_STATE_EXPANDABLE;
  66   atk_state_types[Accessibility_STATE_EXPANDABLE] = ATK_STATE_EXPANDABLE;
  67   accessible_state_types[ATK_STATE_EXPANDED] = Accessibility_STATE_EXPANDED;
  68   atk_state_types[Accessibility_STATE_EXPANDED] = ATK_STATE_EXPANDED;
  69   accessible_state_types[ATK_STATE_FOCUSABLE] = Accessibility_STATE_FOCUSABLE;
  70   atk_state_types[Accessibility_STATE_FOCUSABLE] = ATK_STATE_FOCUSABLE;
  71   accessible_state_types[ATK_STATE_FOCUSED] = Accessibility_STATE_FOCUSED;
  72   atk_state_types[Accessibility_STATE_FOCUSED] = ATK_STATE_FOCUSED;
  73   accessible_state_types[ATK_STATE_HORIZONTAL] = Accessibility_STATE_HORIZONTAL;
  74   atk_state_types[Accessibility_STATE_HORIZONTAL] = ATK_STATE_HORIZONTAL;
  75   accessible_state_types[ATK_STATE_ICONIFIED] = Accessibility_STATE_ICONIFIED;
  76   atk_state_types[Accessibility_STATE_ICONIFIED] = ATK_STATE_ICONIFIED;
  77   accessible_state_types[ATK_STATE_MODAL] = Accessibility_STATE_MODAL;
  78   atk_state_types[Accessibility_STATE_MODAL] = ATK_STATE_MODAL;
  79   accessible_state_types[ATK_STATE_MULTI_LINE] = Accessibility_STATE_MULTI_LINE;
  80   atk_state_types[Accessibility_STATE_MULTI_LINE] = ATK_STATE_MULTI_LINE;
  81   accessible_state_types[ATK_STATE_MULTISELECTABLE] = Accessibility_STATE_MULTISELECTABLE;
  82   atk_state_types[Accessibility_STATE_MULTISELECTABLE] = ATK_STATE_MULTISELECTABLE;
  83   accessible_state_types[ATK_STATE_OPAQUE] = Accessibility_STATE_OPAQUE;
  84   atk_state_types[Accessibility_STATE_OPAQUE] = ATK_STATE_OPAQUE;
  85   accessible_state_types[ATK_STATE_PRESSED] = Accessibility_STATE_PRESSED;
  86   atk_state_types[Accessibility_STATE_PRESSED] = ATK_STATE_PRESSED;
  87   accessible_state_types[ATK_STATE_RESIZABLE] = Accessibility_STATE_RESIZABLE;
  88   atk_state_types[Accessibility_STATE_RESIZABLE] = ATK_STATE_RESIZABLE;
  89   accessible_state_types[ATK_STATE_SELECTABLE] = Accessibility_STATE_SELECTABLE;
  90   atk_state_types[Accessibility_STATE_SELECTABLE] = ATK_STATE_SELECTABLE;
  91   accessible_state_types[ATK_STATE_SELECTED] = Accessibility_STATE_SELECTED;
  92   atk_state_types[Accessibility_STATE_SELECTED] = ATK_STATE_SELECTED;
  93   accessible_state_types[ATK_STATE_SENSITIVE] = Accessibility_STATE_SENSITIVE;
  94   atk_state_types[Accessibility_STATE_SENSITIVE] = ATK_STATE_SENSITIVE;
  95   accessible_state_types[ATK_STATE_SHOWING] = Accessibility_STATE_SHOWING;
  96   atk_state_types[Accessibility_STATE_SHOWING] = ATK_STATE_SHOWING;
  97   accessible_state_types[ATK_STATE_SINGLE_LINE] = Accessibility_STATE_SINGLE_LINE;
  98   atk_state_types[Accessibility_STATE_SINGLE_LINE] = ATK_STATE_SINGLE_LINE;
  99   accessible_state_types[ATK_STATE_STALE] = Accessibility_STATE_STALE;
 100   atk_state_types[Accessibility_STATE_STALE] = ATK_STATE_STALE;
 101   accessible_state_types[ATK_STATE_TRANSIENT] = Accessibility_STATE_TRANSIENT;
 102   atk_state_types[Accessibility_STATE_TRANSIENT] = ATK_STATE_TRANSIENT;
 103   accessible_state_types[ATK_STATE_VERTICAL] = Accessibility_STATE_VERTICAL;
 104   atk_state_types[Accessibility_STATE_VERTICAL] = ATK_STATE_VERTICAL;
 105   accessible_state_types[ATK_STATE_VISIBLE] = Accessibility_STATE_VISIBLE;
 106   atk_state_types[Accessibility_STATE_VISIBLE] = ATK_STATE_VISIBLE;
 107
 108   return TRUE;
 109 }
 110
 111
 112
 113 static AtkStateSet *
 114 atk_state_set_from_servant (PortableServer_Servant servant)
 115 {
 116   SpiBase *base = SPI_BASE (bonobo_object_from_servant(servant));
 117
 118   g_return_val_if_fail (base, NULL);
 119   return  ATK_STATE_SET(base->gobj);
 120 }
 121
 122
 123
 124 static AtkStateSet *
 125 atk_state_set_from_accessibility_state_set (Accessibility_StateSet set, CORBA_Environment *ev)
 126 {
 127   AtkStateType *states, *tmp;
 128   AtkStateSet *rv;
 129   gint i;
 130   Accessibility_StateSeq *seq;
 131
 132   seq = Accessibility_StateSet_getStates (set, ev);
 133   states = tmp = g_new (AtkStateType, seq->_length);
 134   for (i = 0; i < seq->_length; i++)
 135     *tmp++ = atk_state_types[seq->_buffer[i]];
 136   rv = atk_state_set_new ();
 137   atk_state_set_add_states (rv, states, seq->_length);
 138   CORBA_free (seq);
 139   g_free (states);
 140   return rv;
 141 }
 142
 143
 144
 145 SpiStateSet *
 146 spi_state_set_new (AtkStateSet *obj)
 147 {
 148   SpiStateSet *new_set = g_object_new (SPI_STATE_SET_TYPE, NULL);
 149   spi_base_construct (SPI_BASE (new_set), G_OBJECT (obj));
 150   return new_set;
 151 }
 152
 153
 154
 155 static CORBA_boolean
 156 impl_contains (PortableServer_Servant servant,
 157                const Accessibility_StateType state,
 158                CORBA_Environment * ev)
 159 {
 160   AtkStateSet *set = atk_state_set_from_servant (servant);
 161
 162   g_return_val_if_fail (set, FALSE);
 163   return (CORBA_boolean)
 164     atk_state_set_contains_state (set, atk_state_types[state]);
 165 }
 166
 167
 168
 169 static void
 170 impl_add(PortableServer_Servant servant,
 171     const Accessibility_StateType state,
 172     CORBA_Environment * ev)
 173 {
 174   AtkStateSet *set = atk_state_set_from_servant (servant);
 175
 176   g_return_if_fail (set);
 177   atk_state_set_add_state (set, atk_state_types[state]);
 178 }
 179
 180
 181
 182 static void
 183 impl_remove (PortableServer_Servant servant,
 184              const Accessibility_StateType state,
 185              CORBA_Environment * ev)
 186 {
 187   AtkStateSet *set = atk_state_set_from_servant (servant);
 188
 189   g_return_if_fail (set);
 190   atk_state_set_remove_state (set, atk_state_types[state]);
 191 }
 192
 193
 194
 195 static CORBA_boolean
 196 impl_equals (PortableServer_Servant servant,
 197              const Accessibility_StateSet stateSet,
 198              CORBA_Environment * ev)
 199 {
 200   AtkStateSet *set = atk_state_set_from_servant (servant);
 201   AtkStateSet *set2, *return_set;
 202   CORBA_boolean rv;
 203
 204   g_return_val_if_fail (set, FALSE);
 205
 206   set2 = atk_state_set_from_accessibility_state_set (stateSet, ev);
 207   g_return_val_if_fail (set2, FALSE);
 208
 209   return_set = atk_state_set_xor_sets (set, set2);
 210   g_object_unref (G_OBJECT(set2));
 211   if (return_set)
 212     {
 213       rv = (CORBA_boolean)
 214         atk_state_set_is_empty (return_set);
 215       g_object_unref (G_OBJECT(return_set));
 216     }
 217   else
 218     rv = FALSE;
 219   return rv;
 220 }
 221
 222
 223
 224 static Accessibility_StateSet
 225 impl_compare (PortableServer_Servant servant,
 226               const Accessibility_StateSet compareState,
 227               CORBA_Environment * ev)
 228 {
 229   AtkStateSet *set = atk_state_set_from_servant (servant);
 230   AtkStateSet *set2, *return_set;
 231   SpiStateSet *spi_set;
 232
 233   g_return_val_if_fail (set, FALSE);
 234
 235   set2 = atk_state_set_from_accessibility_state_set (compareState, ev);
 236   g_return_val_if_fail (set2, CORBA_OBJECT_NIL);
 237
 238   return_set = atk_state_set_xor_sets (set, set2);
 239   g_object_unref (G_OBJECT(set2));
 240   spi_set = spi_state_set_new (return_set);
 241   return bonobo_object_corba_objref (BONOBO_OBJECT(spi_set));
 242 }
 243
 244
 245
 246 static CORBA_boolean
 247 impl_isEmpty (PortableServer_Servant servant,
 248               CORBA_Environment * ev)
 249 {
 250   AtkStateSet *set = atk_state_set_from_servant (servant);
 251
 252   g_return_val_if_fail (set, TRUE);
 253   return (CORBA_boolean)
 254     atk_state_set_is_empty (set);
 255 }
 256
 257
 258
 259 static Accessibility_StateSeq *
 260 impl_getStates (PortableServer_Servant servant,
 261                 CORBA_Environment * ev)
 262 {
 263   AtkStateSet *set = atk_state_set_from_servant (servant);
 264   GSList *states = NULL;
 265   GSList *tmp;
 266   gint i = 0;
 267   Accessibility_StateSeq *rv;
 268
 269   g_return_val_if_fail (set, CORBA_OBJECT_NIL);
 270
 271   /* Argh-- this is bad!!! */
 272
 273   if (atk_state_set_contains_state (set, ATK_STATE_ACTIVE))
 274     states = g_slist_append (states, (gpointer) Accessibility_STATE_ACTIVE);
 275   if (atk_state_set_contains_state (set, ATK_STATE_ARMED))
 276     states = g_slist_append (states, (gpointer) Accessibility_STATE_ARMED);
 277   if (atk_state_set_contains_state (set, ATK_STATE_BUSY))
 278     states = g_slist_append (states, (gpointer) Accessibility_STATE_BUSY);
 279   if (atk_state_set_contains_state (set, ATK_STATE_CHECKED))
 280     states = g_slist_append (states, (gpointer) Accessibility_STATE_CHECKED);
 281   if (atk_state_set_contains_state (set, ATK_STATE_DEFUNCT))
 282     states = g_slist_append (states, (gpointer) Accessibility_STATE_DEFUNCT);
 283   if (atk_state_set_contains_state (set, ATK_STATE_EDITABLE))
 284     states = g_slist_append (states, (gpointer) Accessibility_STATE_EDITABLE);
 285   if (atk_state_set_contains_state (set, ATK_STATE_ENABLED))
 286     states = g_slist_append (states, (gpointer) Accessibility_STATE_ENABLED);
 287   if (atk_state_set_contains_state (set, ATK_STATE_EXPANDABLE))
 288     states = g_slist_append (states, (gpointer) Accessibility_STATE_EXPANDABLE);
 289   if (atk_state_set_contains_state (set, ATK_STATE_EXPANDED))
 290     states = g_slist_append (states, (gpointer) Accessibility_STATE_EXPANDED);
 291   if (atk_state_set_contains_state (set, ATK_STATE_FOCUSABLE))
 292     states = g_slist_append (states, (gpointer) Accessibility_STATE_FOCUSABLE);
 293   if (atk_state_set_contains_state (set, ATK_STATE_FOCUSED))
 294     states = g_slist_append (states, (gpointer) Accessibility_STATE_FOCUSED);
 295   if (atk_state_set_contains_state (set, ATK_STATE_HORIZONTAL))
 296     states = g_slist_append (states, (gpointer) Accessibility_STATE_HORIZONTAL);
 297   if (atk_state_set_contains_state (set, ATK_STATE_ICONIFIED))
 298     states = g_slist_append (states, (gpointer) Accessibility_STATE_ICONIFIED);
 299   if (atk_state_set_contains_state (set, ATK_STATE_MODAL))
 300     states = g_slist_append (states, (gpointer) Accessibility_STATE_MODAL);
 301   if (atk_state_set_contains_state (set, ATK_STATE_MULTI_LINE))
 302     states = g_slist_append (states, (gpointer) Accessibility_STATE_MULTI_LINE);
 303   if (atk_state_set_contains_state (set, ATK_STATE_MULTISELECTABLE))
 304     states = g_slist_append (states, (gpointer) Accessibility_STATE_MULTISELECTABLE);
 305   if (atk_state_set_contains_state (set, ATK_STATE_OPAQUE))
 306     states = g_slist_append (states, (gpointer) Accessibility_STATE_OPAQUE);
 307   if (atk_state_set_contains_state (set, ATK_STATE_PRESSED))
 308     states = g_slist_append (states, (gpointer) Accessibility_STATE_PRESSED);
 309   if (atk_state_set_contains_state (set, ATK_STATE_RESIZABLE))
 310     states = g_slist_append (states, (gpointer) Accessibility_STATE_RESIZABLE);
 311   if (atk_state_set_contains_state (set, ATK_STATE_SELECTABLE))
 312     states = g_slist_append (states, (gpointer) Accessibility_STATE_SELECTABLE);
 313   if (atk_state_set_contains_state (set, ATK_STATE_SELECTED))
 314     states = g_slist_append (states, (gpointer) Accessibility_STATE_SELECTED);
 315   if (atk_state_set_contains_state (set, ATK_STATE_SENSITIVE))
 316     states = g_slist_append (states, (gpointer) Accessibility_STATE_SENSITIVE);
 317   if (atk_state_set_contains_state (set, ATK_STATE_SHOWING))
 318     states = g_slist_append (states, (gpointer) Accessibility_STATE_SHOWING);
 319   if (atk_state_set_contains_state (set, ATK_STATE_SINGLE_LINE))
 320     states = g_slist_append (states, (gpointer) Accessibility_STATE_SINGLE_LINE);
 321   if (atk_state_set_contains_state (set, ATK_STATE_STALE))
 322     states = g_slist_append (states, (gpointer) Accessibility_STATE_STALE);
 323   if (atk_state_set_contains_state (set, ATK_STATE_TRANSIENT))
 324     states = g_slist_append (states, (gpointer) Accessibility_STATE_TRANSIENT);
 325   if (atk_state_set_contains_state (set, ATK_STATE_VERTICAL))
 326     states = g_slist_append (states, (gpointer) Accessibility_STATE_VERTICAL);
 327   if (atk_state_set_contains_state (set, ATK_STATE_VISIBLE))
 328     states = g_slist_append (states, (gpointer) Accessibility_STATE_VISIBLE);
 329
 330   rv = Accessibility_StateSeq__alloc ();
 331   rv->_length = rv->_maximum = g_slist_length (states);
 332   rv->_buffer = Accessibility_StateSeq_allocbuf (rv->_length);
 333   tmp = states;
 334   while (tmp)
 335     {
 336       rv->_buffer[i++] = (Accessibility_StateType) tmp->data;
 337       tmp = tmp->next;
 338     }
 339   g_slist_free (states);
 340   return rv;
 341 }
 342
 343
 344
 345 static void
 346 spi_state_set_class_init (SpiStateSetClass *klass)
 347 {
 348   POA_Accessibility_StateSet__epv *epv = &klass->epv;
 349
 350   epv->contains = impl_contains;
 351   epv->add = impl_add;
 352   epv->remove = impl_remove;
 353   epv->equals = impl_equals;
 354   epv->compare = impl_compare;
 355   epv->isEmpty = impl_isEmpty;
 356   epv->getStates = impl_getStates;
 357 }
 358
 359
 360 static void
 361 spi_state_set_init (SpiStateSet *set)
 362 {
 363 }
 364
 365
 366 BONOBO_TYPE_FUNC_FULL (SpiStateSet,
 367                        Accessibility_StateSet,
 368                        SPI_TYPE_BASE,
 369                        spi_state_set);