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1 /*
2 * This program is free software; you can redistribute it and/or
3 * modify it under the terms of the GNU Lesser General Public
4 * License as published by the Free Software Foundation; either
5 * version 2 of the License, or (at your option) version 3.
6 *
7 * This program is distributed in the hope that it will be useful,
8 * but WITHOUT ANY WARRANTY; without even the implied warranty of
9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
10 * Lesser General Public License for more details.
11 *
12 * You should have received a copy of the GNU Lesser General Public
13 * License along with the program; if not, see <http://www.gnu.org/licenses/>
14 *
15 *
16 * Authors:
17 * Bolian Yin <bolian.yin@sun.com>
18 *
19 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
20 *
21 */
22
23 #ifdef HAVE_CONFIG_H
24 #include <config.h>
25 #endif
26
27 #include <text/e-text.h>
28 #include <libgnomecanvas/libgnomecanvas.h>
29 #include "ea-calendar-helpers.h"
30 #include "a11y/ea-factory.h"
31 #include "ea-calendar.h"
32
33 #include "calendar/gui/ea-cal-view.h"
34 #include "calendar/gui/ea-cal-view-event.h"
35 #include "calendar/gui/ea-day-view.h"
36 #include "calendar/gui/ea-day-view-main-item.h"
37 #include "calendar/gui/ea-week-view.h"
38 #include "calendar/gui/ea-week-view-main-item.h"
39 #include "calendar/gui/ea-gnome-calendar.h"
40
41 EA_FACTORY (EA_TYPE_CAL_VIEW, ea_cal_view, ea_cal_view_new)
42 EA_FACTORY (EA_TYPE_DAY_VIEW, ea_day_view, ea_day_view_new)
43 EA_FACTORY_GOBJECT (
44 EA_TYPE_DAY_VIEW_MAIN_ITEM,
45 ea_day_view_main_item, ea_day_view_main_item_new)
46 EA_FACTORY (EA_TYPE_WEEK_VIEW, ea_week_view, ea_week_view_new)
47 EA_FACTORY_GOBJECT (
48 EA_TYPE_WEEK_VIEW_MAIN_ITEM,
49 ea_week_view_main_item, ea_week_view_main_item_new)
50 EA_FACTORY (EA_TYPE_GNOME_CALENDAR, ea_gnome_calendar, ea_gnome_calendar_new)
51
52 static gboolean ea_calendar_focus_watcher (GSignalInvocationHint *ihint,
53 guint n_param_values,
54 const GValue *param_values,
55 gpointer data);
56
57 static gpointer e_text_type, pixbuf_type, e_day_view_type, e_week_view_type;
58 static gpointer e_day_view_main_item_type, e_week_view_main_item_type;
59
60 void
61 gnome_calendar_a11y_init (void)
62 {
63 /* we only add focus watcher when accessibility is enabled
64 */
65 if (atk_get_root ()) {
66 GtkWidget *gnome_canvas;
67
68 /* first initialize ATK support in gnome-canvas and also gail-canvas */
69 gnome_canvas = gnome_canvas_new ();
70 gtk_widget_destroy (gnome_canvas);
71
72 EA_SET_FACTORY (gnome_calendar_get_type (), ea_gnome_calendar);
73
74 /* force loading some types */
75 e_text_type = g_type_class_ref (E_TYPE_TEXT);
76 pixbuf_type = g_type_class_ref (GNOME_TYPE_CANVAS_PIXBUF);
77 e_day_view_type = g_type_class_ref (e_day_view_get_type ());
78 e_week_view_type = g_type_class_ref (E_TYPE_WEEK_VIEW);
79 e_day_view_main_item_type = g_type_class_ref (
80 e_day_view_main_item_get_type ());
81 e_week_view_main_item_type = g_type_class_ref (
82 e_week_view_main_item_get_type ());
83
84 g_signal_add_emission_hook (
85 g_signal_lookup ("event", E_TYPE_TEXT),
86 0, ea_calendar_focus_watcher,
87 NULL, (GDestroyNotify) NULL);
88 g_signal_add_emission_hook (
89 g_signal_lookup ("event", GNOME_TYPE_CANVAS_PIXBUF),
90 0, ea_calendar_focus_watcher,
91 NULL, (GDestroyNotify) NULL);
92 g_signal_add_emission_hook (
93 g_signal_lookup ("event-after", E_TYPE_DAY_VIEW),
94 0, ea_calendar_focus_watcher,
95 NULL, (GDestroyNotify) NULL);
96 g_signal_add_emission_hook (
97 g_signal_lookup ("event", E_TYPE_DAY_VIEW_MAIN_ITEM),
98 0, ea_calendar_focus_watcher,
99 NULL, (GDestroyNotify) NULL);
100 g_signal_add_emission_hook (
101 g_signal_lookup ("event-after", E_TYPE_WEEK_VIEW),
102 0, ea_calendar_focus_watcher,
103 NULL, (GDestroyNotify) NULL);
104 g_signal_add_emission_hook (
105 g_signal_lookup ("event", E_TYPE_WEEK_VIEW_MAIN_ITEM),
106 0, ea_calendar_focus_watcher,
107 NULL, (GDestroyNotify) NULL);
108 }
109 }
110
111 void
112 e_cal_view_a11y_init (void)
113 {
114 EA_SET_FACTORY (e_calendar_view_get_type (), ea_cal_view);
115 }
116
117 void
118 e_day_view_a11y_init (void)
119 {
120 EA_SET_FACTORY (e_day_view_get_type (), ea_day_view);
121 }
122
123 void
124 e_day_view_main_item_a11y_init (void)
125 {
126 EA_SET_FACTORY (e_day_view_main_item_get_type (), ea_day_view_main_item);
127 }
128
129 void
130 e_week_view_a11y_init (void)
131 {
132 EA_SET_FACTORY (E_TYPE_WEEK_VIEW, ea_week_view);
133 }
134
135 void
136 e_week_view_main_item_a11y_init (void)
137 {
138 EA_SET_FACTORY (e_week_view_main_item_get_type (), ea_week_view_main_item);
139 }
140
141 static gboolean
142 ea_calendar_focus_watcher (GSignalInvocationHint *ihint,
143 guint n_param_values,
144 const GValue *param_values,
145 gpointer data)
146 {
147 GObject *object;
148 GdkEvent *event;
149 AtkObject *ea_event = NULL;
150
151 object = g_value_get_object (param_values + 0);
152 event = g_value_get_boxed (param_values + 1);
153
154 if ((E_IS_TEXT (object)) || (GNOME_IS_CANVAS_PIXBUF (object))) {
155 /* "event" signal on canvas item
156 */
157 GnomeCanvasItem *canvas_item;
158
159 canvas_item = GNOME_CANVAS_ITEM (object);
160 if (event->type == GDK_FOCUS_CHANGE) {
161 if (event->focus_change.in) {
162 ea_event =
163 ea_calendar_helpers_get_accessible_for (canvas_item);
164 if (!ea_event)
165 /* not canvas item we want */
166 return TRUE;
167
168 }
169 atk_focus_tracker_notify (ea_event);
170 }
171 }
172 else if (E_IS_DAY_VIEW (object)) {
173 EDayView *day_view = E_DAY_VIEW (object);
174 if (event->type == GDK_FOCUS_CHANGE) {
175 if (event->focus_change.in) {
176 /* give main item chance to emit focus */
177 gnome_canvas_item_grab_focus (day_view->main_canvas_item);
178 }
179 }
180 }
181 else if (E_IS_DAY_VIEW_MAIN_ITEM (object)) {
182 if (event->type == GDK_FOCUS_CHANGE) {
183 if (event->focus_change.in) {
184 /* we should emit focus on main item */
185 ea_event = atk_gobject_accessible_for_object (object);
186 }
187 else
188 /* focus out */
189 ea_event = NULL;
190 #ifdef ACC_DEBUG
191 printf ("EvoAcc: focus notify on day main item %p\n", (gpointer) object);
192 #endif
193 atk_focus_tracker_notify (ea_event);
194 }
195 } else if (E_IS_WEEK_VIEW (object)) {
196 EWeekView *week_view = E_WEEK_VIEW (object);
197 if (event->type == GDK_FOCUS_CHANGE) {
198 if (event->focus_change.in) {
199 /* give main item chance to emit focus */
200 gnome_canvas_item_grab_focus (week_view->main_canvas_item);
201 }
202 }
203 }
204 else if (E_IS_WEEK_VIEW_MAIN_ITEM (object)) {
205 if (event->type == GDK_FOCUS_CHANGE) {
206 if (event->focus_change.in) {
207 /* we should emit focus on main item */
208 ea_event = atk_gobject_accessible_for_object (object);
209 }
210 else
211 /* focus out */
212 ea_event = NULL;
213 atk_focus_tracker_notify (ea_event);
214 }
215 }
216 return TRUE;
217 }