2 * AT-SPI - Assistive Technology Service Provider Interface
3 * (Gnome Accessibility Project; http://developer.gnome.org/projects/gap)
5 * Copyright 2001 Sun Microsystems Inc.
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.
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.
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.
24 #include <sys/socket.h>
28 static void report_focus_event (void *fp);
29 static void report_button_press (void *fp);
30 static boolean report_key_event (void *fp);
31 static void check_property_change (void *fp);
32 static void get_environment_vars (void);
34 static int _festival_init ();
35 static void _festival_say (const char *text, const char *voice, boolean shutup);
36 static void _festival_write (const char *buff, int fd);
38 static boolean use_magnifier = FALSE;
39 static boolean use_festival = FALSE;
40 static boolean festival_chatty = FALSE;
42 static AccessibleEventListener *focus_listener;
43 static AccessibleEventListener *property_listener;
44 static AccessibleEventListener *button_listener;
45 static AccessibleKeystrokeListener *key_listener;
48 main(int argc, char **argv)
54 Accessible *application;
56 if ((argc > 1) && (!strncmp(argv[1],"-h",2)))
58 printf ("Usage: simple-at\n");
59 printf ("\tEnvironment variables used:\n\t\tFESTIVAL\n\t\tMAGNIFIER\n\t\tFESTIVAL_CHATTY\n");
65 focus_listener = createAccessibleEventListener (report_focus_event);
66 property_listener = createAccessibleEventListener (check_property_change);
67 button_listener = createAccessibleEventListener (report_button_press);
68 registerGlobalEventListener (focus_listener, "focus:");
69 registerGlobalEventListener (property_listener, "object:property-change:accessible-selection");
70 registerGlobalEventListener (button_listener, "Gtk:GtkWidget:button-press-event");
71 n_desktops = getDesktopCount ();
73 for (i=0; i<n_desktops; ++i)
75 desktop = getDesktop (i);
76 fprintf (stderr, "desktop %d name: %s\n", i, Accessible_getName (desktop));
77 n_apps = Accessible_getChildCount (desktop);
78 for (j=0; j<n_apps; ++j)
80 application = Accessible_getChildAtIndex (desktop, j);
81 fprintf (stderr, "app %d name: %s\n", j, Accessible_getName (application));
82 Accessible_unref (application);
86 /* prepare the keyboard snoopers */
87 key_listener = createAccessibleKeystrokeListener(report_key_event);
88 /* will listen only to Alt-key combinations */
89 registerAccessibleKeystrokeListener(key_listener,
90 (AccessibleKeySet *) SPI_KEYSET_ALL_KEYS,
92 (unsigned long) ( KeyPress | KeyRelease),
93 SPI_KEYLISTENER_ALL_WINDOWS);
95 get_environment_vars();
101 get_environment_vars()
103 if (getenv ("FESTIVAL"))
106 if (getenv ("FESTIVAL_CHATTY"))
108 festival_chatty = TRUE;
111 if (getenv("MAGNIFIER"))
113 use_magnifier = TRUE;
118 report_focussed_accessible (Accessible *obj, boolean shutup_previous_speech)
124 _festival_say (Accessible_getRole (obj), "voice_don_diphone", shutup_previous_speech);
126 fprintf (stderr, "getting Name\n");
127 _festival_say (Accessible_getName (obj), "voice_kal_diphone",
128 shutup_previous_speech || festival_chatty);
131 if (Accessible_isComponent (obj))
133 long x, y, width, height;
134 AccessibleComponent *component = Accessible_getComponent (obj);
135 AccessibleComponent_getExtents (component, &x, &y, &width, &height,
136 SPI_COORD_TYPE_SCREEN);
137 fprintf (stderr, "Bounding box: (%ld, %ld) ; (%ld, %ld)\n",
138 x, y, x+width, y+height);
140 magnifier_set_roi ((short) 0, x, y, width, height);
143 /* if this is a text object, speak the first sentence. */
145 if (Accessible_isText(obj))
148 AccessibleText *text_interface;
149 long start_offset, end_offset;
150 char *first_sentence = "empty";
151 text_interface = Accessible_getText (obj);
152 fprintf (stderr, "isText...%p %p\n", text_interface, (void *)*text_interface);
153 first_sentence = AccessibleText_getTextAtOffset (
154 text_interface, (long) 0, SPI_TEXT_BOUNDARY_SENTENCE_START, &start_offset, &end_offset);
155 if (first_sentence) _festival_say(first_sentence, "voice_don_diphone", FALSE);
156 fprintf (stderr, "done reporting on focussed object\n");
161 report_focus_event (void *p)
163 AccessibleEvent *ev = (AccessibleEvent *) p;
164 fprintf (stderr, "%s event from %s\n", ev->type,
165 Accessible_getName (&ev->source));
166 report_focussed_accessible (&ev->source, TRUE);
170 report_button_press (void *p)
172 AccessibleEvent *ev = (AccessibleEvent *) p;
173 fprintf (stderr, "%s event from %s\n", ev->type,
174 Accessible_getName (&ev->source));
179 check_property_change (void *p)
181 AccessibleEvent *ev = (AccessibleEvent *) p;
182 AccessibleSelection *selection = Accessible_getSelection (&ev->source);
187 n_selections = (int) AccessibleSelection_getNSelectedChildren (selection);
188 fprintf (stderr, "(Property) %s event from %s, %d selected children\n", ev->type,
189 Accessible_getName (&ev->source), n_selections);
190 /* for now, speak entire selection set */
191 for (i=0; i<n_selections; ++i)
193 Accessible *obj = AccessibleSelection_getSelectedChild (selection, (long) i);
194 g_return_if_fail (obj);
195 fprintf (stderr, "Child %d, name=%s\n", i, Accessible_getName (obj));
196 report_focussed_accessible (obj, i==0);
204 deregisterGlobalEventListenerAll (focus_listener);
205 deregisterGlobalEventListenerAll (property_listener);
206 deregisterGlobalEventListenerAll (button_listener);
207 deregisterAccessibleKeystrokeListener (key_listener, SPI_KEYMASK_ALT );
213 is_command_key (AccessibleKeyStroke *key)
220 return TRUE; /* not reached */
223 use_magnifier = ! use_magnifier;
227 use_festival = ! use_festival;
235 report_key_event (void *p)
237 AccessibleKeyStroke *key = (AccessibleKeyStroke *) p;
238 fprintf(stderr, "KeyEvent %s%c (keycode %d)\n",
239 (key->modifiers & SPI_KEYMASK_ALT)?"Alt-":"",
240 ((key->modifiers & SPI_KEYMASK_SHIFT)^(key->modifiers & SPI_KEYMASK_SHIFTLOCK))?
241 (char) toupper((int) key->keyID) : (char) tolower((int) key->keyID),
243 return is_command_key (key);
246 static int _festival_init ()
249 struct sockaddr_in name;
252 name.sin_family = AF_INET;
253 name.sin_port = htons (1314);
254 name.sin_addr.s_addr = htonl(INADDR_ANY);
255 fd = socket (PF_INET, SOCK_STREAM, 0);
257 while (connect(fd, (struct sockaddr *) &name, sizeof (name)) < 0) {
264 _festival_write ("(audio_mode'async)\n", fd);
265 _festival_write ("(Parameter.set 'Duration_Model 'Tree_ZScore)\n", fd);
266 _festival_write ("(Parameter.set 'Duration_Stretch 0.75)\n", fd);
270 static void _festival_say (const char *text, const char *voice, boolean shutup)
276 static gchar voice_spec[32];
280 fd = _festival_init ();
283 fprintf (stderr, "saying text: %s\n", text);
285 quoted = g_malloc(64+strlen(text)*2);
287 sprintf (prefix, "(SayText \"");
289 strncpy(quoted, prefix, 10);
290 p = quoted+strlen(prefix);
292 if ( *text == '\\' || *text == '"' )
301 if (shutup) _festival_write ("(audio_mode'shutup)\n", fd);
302 if (voice && (strncmp (voice, (char *) (voice_spec+1), strlen(voice))))
304 snprintf (voice_spec, 32, "(%s)\n", voice);
305 _festival_write (voice_spec, fd);
306 _festival_write ("(Parameter.set 'Duration_Model 'Tree_ZScore)\n", fd);
307 _festival_write ("(Parameter.set 'Duration_Stretch 0.75)\n", fd);
310 _festival_write (quoted, fd);
315 static void _festival_write (const gchar *command_string, int fd)
317 fprintf(stderr, command_string);
322 write(fd, command_string, strlen(command_string));