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;
43 main(int argc, char **argv)
49 Accessible *application;
50 AccessibleEventListener *focus_listener;
51 AccessibleEventListener *property_listener;
52 AccessibleEventListener *button_listener;
53 KeystrokeListener *key_listener;
55 if ((argc > 1) && (!strncmp(argv[1],"-h",2)))
57 printf ("Usage: simple-at\n");
58 printf ("\tEnvironment variables used:\n\t\tFESTIVAL\n\t\tMAGNIFIER\n\t\tFESTIVAL_CHATTY\n");
64 focus_listener = createEventListener (report_focus_event);
65 property_listener = createEventListener (check_property_change);
66 button_listener = createEventListener (report_button_press);
67 registerGlobalEventListener (focus_listener, "focus:");
68 registerGlobalEventListener (property_listener, "object:property-change:accessible-selection");
69 registerGlobalEventListener (button_listener, "Gtk:GtkWidget:button-press-event");
70 n_desktops = getDesktopCount ();
72 for (i=0; i<n_desktops; ++i)
74 desktop = getDesktop (i);
75 fprintf (stderr, "desktop %d name: %s\n", i, Accessible_getName (desktop));
76 n_apps = Accessible_getChildCount (desktop);
77 for (j=0; j<n_apps; ++j)
79 application = Accessible_getChildAtIndex (desktop, j);
80 fprintf (stderr, "app %d name: %s\n", j, Accessible_getName (application));
81 Accessible_unref (application);
85 /* prepare the keyboard snoopers */
86 /* key_listener = createKeystrokeListener(report_key_event);
87 registerKeystrokeListener(key_listener, KEYMASK_SHIFT); */
89 get_environment_vars();
91 SPI_event_main(FALSE);
95 get_environment_vars()
97 if (getenv ("FESTIVAL"))
100 if (getenv ("FESTIVAL_CHATTY"))
102 festival_chatty = TRUE;
105 if (getenv("MAGNIFIER"))
107 use_magnifier = TRUE;
112 report_focussed_accessible (Accessible *obj, boolean shutup_previous_speech)
118 _festival_say (Accessible_getRole (obj), "voice_don_diphone", shutup_previous_speech);
120 fprintf (stderr, "getting Name\n");
121 _festival_say (Accessible_getName (obj), "voice_kal_diphone",
122 shutup_previous_speech || festival_chatty);
125 if (Accessible_isComponent (obj))
127 long x, y, width, height;
128 AccessibleComponent *component = Accessible_getComponent (obj);
129 AccessibleComponent_getExtents (component, &x, &y, &width, &height,
131 fprintf (stderr, "Bounding box: (%ld, %ld) ; (%ld, %ld)\n",
132 x, y, x+width, y+height);
134 magnifier_set_roi (x, y, width, height);
137 /* if this is a text object, speak the first sentence. */
138 if (Accessible_isText(obj))
140 AccessibleText *text_interface;
141 long start_offset, end_offset;
142 char *first_sentence = "empty";
143 text_interface = Accessible_getText (obj);
144 fprintf (stderr, "isText...%p %p\n", text_interface, (void *)*text_interface);
145 first_sentence = AccessibleText_getTextAtOffset (
146 text_interface, (long) 0, TEXT_BOUNDARY_SENTENCE_START, &start_offset, &end_offset);
147 if (first_sentence) _festival_say(first_sentence, "voice_don_diphone", FALSE);
148 fprintf (stderr, "done reporting on focussed object\n");
153 report_focus_event (void *p)
155 AccessibleEvent *ev = (AccessibleEvent *) p;
156 fprintf (stderr, "%s event from %s\n", ev->type,
157 Accessible_getName (&ev->source));
158 report_focussed_accessible (&ev->source, TRUE);
162 report_button_press (void *p)
164 AccessibleEvent *ev = (AccessibleEvent *) p;
165 fprintf (stderr, "%s event from %s\n", ev->type,
166 Accessible_getName (&ev->source));
171 check_property_change (void *p)
173 AccessibleEvent *ev = (AccessibleEvent *) p;
174 AccessibleSelection *selection = Accessible_getSelection (&ev->source);
179 n_selections = (int) AccessibleSelection_getNSelectedChildren (selection);
180 fprintf (stderr, "(Property) %s event from %s, %d selected children\n", ev->type,
181 Accessible_getName (&ev->source), n_selections);
182 /* for now, speak entire selection set */
183 for (i=0; i<n_selections; ++i)
185 Accessible *obj = AccessibleSelection_getSelectedChild (selection, (long) i);
186 g_return_if_fail (obj);
187 fprintf (stderr, "Child %d, name=%s\n", i, Accessible_getName (obj));
188 report_focussed_accessible (obj, i==0);
194 report_key_event (void *p)
196 KeyStroke *key = (KeyStroke *) p;
197 fprintf (stderr, ".");
201 static int _festival_init ()
204 struct sockaddr_in name;
207 name.sin_family = AF_INET;
208 name.sin_port = htons (1314);
209 name.sin_addr.s_addr = htonl(INADDR_ANY);
210 fd = socket (PF_INET, SOCK_STREAM, 0);
212 while (connect(fd, (struct sockaddr *) &name, sizeof (name)) < 0) {
219 _festival_write ("(audio_mode'async)\n", fd);
220 _festival_write ("(Parameter.set 'Duration_Model 'Tree_ZScore)\n", fd);
221 _festival_write ("(Parameter.set 'Duration_Stretch 0.75)\n", fd);
225 static void _festival_say (const char *text, const char *voice, boolean shutup)
231 static gchar voice_spec[32];
235 fd = _festival_init ();
238 fprintf (stderr, "saying text: %s\n", text);
240 quoted = g_malloc(64+strlen(text)*2);
242 sprintf (prefix, "(SayText \"");
244 strncpy(quoted, prefix, 10);
245 p = quoted+strlen(prefix);
247 if ( *text == '\\' || *text == '"' )
256 if (shutup) _festival_write ("(audio_mode'shutup)\n", fd);
257 if (voice && (strncmp (voice, (char *) (voice_spec+1), strlen(voice))))
259 snprintf (voice_spec, 32, "(%s)\n", voice);
260 _festival_write (voice_spec, fd);
261 _festival_write ("(Parameter.set 'Duration_Model 'Tree_ZScore)\n", fd);
262 _festival_write ("(Parameter.set 'Duration_Stretch 0.75)\n", fd);
265 _festival_write (quoted, fd);
270 static void _festival_write (const gchar *command_string, int fd)
272 fprintf(stderr, command_string);
277 write(fd, command_string, strlen(command_string));