94c26ac583579cd8f1ec9882bb709135b1450f0a
[claws.git] / src / manual.c
1 /*
2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
3  * Copyright (C) 1999-2012 Hiroyuki Yamamoto and the Claws Mail team
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License as published by
7  * the Free Software Foundation; either version 3 of the License, or
8  * (at your option) any later version.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with this program. If not, see <http://www.gnu.org/licenses/>.
17  * 
18  */
19
20 #ifdef HAVE_CONFIG_H
21 #  include "config.h"
22 #include "claws-features.h"
23 #endif
24
25 #include "defs.h"
26
27 #include <glib.h>
28 #include <string.h>
29
30 #if HAVE_LOCALE_H
31 #  include <locale.h>
32 #endif
33
34 #if !defined(LC_MESSAGES) && defined(G_OS_WIN32)
35 #include <libintl.h>
36 #endif
37
38
39 #include "prefs_common.h"
40 #include "manual.h"
41 #include "utils.h"
42
43
44 static gchar *get_language()
45 {
46         gchar *language;
47         gchar *c;
48
49 #ifdef G_OS_WIN32
50         language = g_strdup(gtk_set_locale());
51 #else
52         /* FIXME: Why not using gtk_set_locale here too? -wk */
53         language = g_strdup(setlocale(LC_MESSAGES, NULL));
54 #endif
55         /* At least under W32 it is possible that gtk_set_locate
56            returns NULL.  This is not documented but well, it happens
57            and g_strdup is happy with a NULL argument.  We return a
58            standard language string in this case. */
59         if (!language)
60                 return g_strdup("en");
61         if((c = strchr(language, ',')) != NULL)
62                 *c = '\0';
63         if((c = strchr(language, '_')) != NULL)
64                 *c = '\0';
65
66         return language;
67 }
68
69 static gchar *get_local_path_with_locale(gchar *rootpath)
70 {
71         gchar *lang_str, *dir;
72
73         lang_str = get_language();
74         dir = g_strconcat(rootpath, G_DIR_SEPARATOR_S, 
75                           lang_str, NULL);
76         g_free(lang_str);
77         if(!is_dir_exist(dir)) {
78                 g_free(dir);
79                 dir = g_strconcat(rootpath, G_DIR_SEPARATOR_S,
80                                   "en", NULL);
81                 if(!is_dir_exist(dir)) {
82                         g_free(dir);
83                         dir = NULL;
84                 }
85         }
86
87         return dir;
88 }
89
90 gboolean manual_available(ManualType type)
91 {
92         gboolean ret = FALSE;
93         gchar *dir = NULL, *uri = NULL;
94         
95         switch (type) {
96                 case MANUAL_MANUAL_CLAWS:
97                         dir = get_local_path_with_locale(MANUALDIR);
98                         if (dir != NULL) {
99                                 uri = g_strconcat(dir, G_DIR_SEPARATOR_S, MANUAL_HTML_INDEX, NULL);
100                                 g_free(dir);
101                                 if (is_file_exist(uri))
102                                         ret = TRUE;
103                                 else
104                                         ret = FALSE;
105                                 g_free(uri);
106                         }
107                         break;
108                 default:
109                         ret = FALSE;
110         }
111
112         return ret;
113 }
114
115 void manual_open(ManualType type, gchar *url_anchor)
116 {
117         gchar *uri = NULL;
118         gchar *dir;
119
120         switch (type) {
121                 case MANUAL_MANUAL_CLAWS:
122                         dir = get_local_path_with_locale(MANUALDIR);
123                         if (dir != NULL) {
124                                 gchar *tmp_anchor = NULL;
125                                 if (url_anchor && *url_anchor != '\0')
126                                         tmp_anchor = g_strconcat("#", url_anchor, NULL);
127                                 uri = g_strconcat("file://",
128                                                 dir, G_DIR_SEPARATOR_S, MANUAL_HTML_INDEX,
129                                                 tmp_anchor,
130                                                 NULL);
131                                 g_free(tmp_anchor);
132                                 g_free(dir);
133                         } else {
134                                 uri = g_strconcat(MANUAL_URI, NULL);
135                         }
136                         break;
137                 case MANUAL_FAQ_CLAWS:
138                         uri = g_strconcat(FAQ_URI, NULL);
139                         break;
140
141                 default:
142                         break;
143         }
144         open_uri(uri, prefs_common_get_uri_cmd());
145         g_free(uri);
146 }
147
148 void manual_open_with_anchor_cb(GtkWidget *widget, gchar *url_anchor)
149 {
150         manual_open(MANUAL_MANUAL_CLAWS, url_anchor);
151 }