1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; c-indent-level: 8 -*- */
3 * Copyright (C) 2005, Red Hat, Inc.
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 2, or (at your option)
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.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
28 #include <glib/gstdio.h>
29 #include <glib/gi18n.h>
30 #include <gtk/gtkfilechooserdialog.h>
32 #include "ev-backends-manager.h"
33 #include "ev-document-factory.h"
34 #include "ev-file-helpers.h"
38 gdk_pixbuf_mime_type_list ()
40 GSList *formats, *list;
43 formats = gdk_pixbuf_get_formats ();
44 for (list = formats; list != NULL; list = list->next) {
45 GdkPixbufFormat *format = list->data;
48 if (gdk_pixbuf_format_is_disabled (format))
51 mime_types = gdk_pixbuf_format_get_mime_types (format);
52 result = g_list_prepend (result, mime_types);
54 g_slist_free (formats);
59 /* Would be nice to have this in gdk-pixbuf */
61 mime_type_supported_by_gdk_pixbuf (const gchar *mime_type)
65 gboolean retval = FALSE;
67 mime_types = gdk_pixbuf_mime_type_list ();
68 for (list = mime_types; list; list = list->next) {
69 gchar **mtypes = (gchar **)list->data;
73 while ((mtype = mtypes[i++])) {
74 if (strcmp (mtype, mime_type) == 0) {
81 g_list_foreach (mime_types, (GFunc)g_strfreev, NULL);
82 g_list_free (mime_types);
86 #endif /* ENABLE_PIXBUF */
88 static EvCompressionType
89 get_compression_from_mime_type (const gchar *mime_type)
94 if (!(p = g_strrstr (mime_type, "/")))
95 return EV_COMPRESSION_NONE;
97 if (sscanf (++p, "x-%2s%*s", type) == 1) {
98 if (g_ascii_strcasecmp (type, "gz") == 0)
99 return EV_COMPRESSION_GZIP;
100 else if (g_ascii_strcasecmp (type, "bz") == 0)
101 return EV_COMPRESSION_BZIP2;
104 return EV_COMPRESSION_NONE;
108 get_mime_type_from_uri (const gchar *uri, GError **error)
111 GFileInfo *file_info;
114 file = g_file_new_for_uri (uri);
115 file_info = g_file_query_info (file,
116 G_FILE_ATTRIBUTE_STANDARD_CONTENT_TYPE,
118 g_object_unref (file);
120 if (file_info == NULL)
123 mime_type = g_strdup (g_file_info_get_content_type (file_info));
124 g_object_unref (file_info);
130 get_mime_type_from_data (const gchar *uri, GError **error)
133 GFileInputStream *input_stream;
137 file = g_file_new_for_uri (uri);
139 input_stream = g_file_read (file, NULL, error);
141 g_object_unref (file);
145 size_read = g_input_stream_read (G_INPUT_STREAM (input_stream),
146 buffer, 1024, NULL, NULL);
147 g_input_stream_close (G_INPUT_STREAM (input_stream), NULL, error);
149 g_object_unref (file);
154 return g_content_type_guess (NULL, /* no filename */
160 get_document_from_uri (const char *uri,
162 EvCompressionType *compression,
165 EvDocument *document = NULL;
166 gchar *mime_type = NULL;
168 *compression = EV_COMPRESSION_NONE;
171 get_mime_type_from_data (uri, error) :
172 get_mime_type_from_uri (uri, error);
174 if (mime_type == NULL) {
177 if (*error == NULL) {
181 _("Unknown MIME Type"));
187 document = ev_backends_manager_get_document (mime_type);
190 if (!document && mime_type_supported_by_gdk_pixbuf (mime_type))
191 document = ev_backends_manager_get_document ("image/*");
192 #endif /* ENABLE_PIXBUF */
194 if (document == NULL) {
197 mime_desc = g_content_type_get_description (mime_type);
201 _("File type %s (%s) is not supported"),
202 mime_desc, mime_type);
209 *compression = get_compression_from_mime_type (mime_type);
217 free_uncompressed_uri (gchar *uri_unc)
222 ev_tmp_uri_unlink (uri_unc);
227 ev_document_factory_get_document (const char *uri, GError **error)
229 EvDocument *document;
231 EvCompressionType compression;
232 gchar *uri_unc = NULL;
234 document = get_document_from_uri (uri, FALSE, &compression, error);
235 if (*error == NULL) {
236 uri_unc = ev_file_uncompress (uri, compression, error);
238 g_object_set_data_full (G_OBJECT (document),
241 (GDestroyNotify) free_uncompressed_uri);
244 if (*error != NULL) {
245 /* Error uncompressing file */
247 g_object_unref (document);
251 result = ev_document_load (document, uri_unc ? uri_unc : uri, error);
253 if (result == FALSE || *error) {
255 (*error)->domain == EV_DOCUMENT_ERROR &&
256 (*error)->code == EV_DOCUMENT_ERROR_ENCRYPTED)
263 /* Try again with slow mime detection */
265 g_object_unref (document);
269 g_error_free (*error);
274 document = get_document_from_uri (uri, TRUE, &compression, error);
276 if (*error != NULL) {
280 uri_unc = ev_file_uncompress (uri, compression, error);
282 g_object_set_data_full (G_OBJECT (document),
285 (GDestroyNotify) free_uncompressed_uri);
288 if (*error != NULL) {
289 /* Error uncompressing file */
291 g_object_unref (document);
295 result = ev_document_load (document, uri_unc ? uri_unc : uri, error);
297 if (result == FALSE) {
298 if (*error == NULL) {
302 _("Unknown MIME Type"));
303 } else if ((*error)->domain == EV_DOCUMENT_ERROR &&
304 (*error)->code == EV_DOCUMENT_ERROR_ENCRYPTED) {
309 g_object_unref (document);
317 file_filter_add_mime_types (EvTypeInfo *info, GtkFileFilter *filter)
319 const gchar *mime_type;
323 if (g_ascii_strcasecmp (info->mime_types[0], "image/*") == 0) {
324 GList *pixbuf_types, *l;
326 pixbuf_types = gdk_pixbuf_mime_type_list ();
327 for (l = pixbuf_types; l; l = g_list_next (l)) {
328 gchar **mime_types = (gchar **)l->data;
331 while ((mime_type = mime_types[j++]))
332 gtk_file_filter_add_mime_type (filter, mime_type);
334 g_strfreev (mime_types);
336 g_list_free (pixbuf_types);
340 #endif /* ENABLE_PIXBUF */
342 while ((mime_type = info->mime_types[i++]))
343 gtk_file_filter_add_mime_type (filter, mime_type);
347 ev_document_factory_add_filters (GtkWidget *chooser, EvDocument *document)
350 GtkFileFilter *filter;
351 GtkFileFilter *default_filter;
352 GtkFileFilter *document_filter;
354 all_types = ev_backends_manager_get_all_types_info ();
356 default_filter = document_filter = filter = gtk_file_filter_new ();
357 gtk_file_filter_set_name (filter, _("All Documents"));
358 g_list_foreach (all_types, (GFunc)file_filter_add_mime_types, filter);
359 gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (chooser), filter);
364 info = ev_backends_manager_get_document_type_info (document);
365 default_filter = filter = gtk_file_filter_new ();
366 gtk_file_filter_set_name (filter, info->desc);
367 file_filter_add_mime_types (info, filter);
369 gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (chooser), filter);
373 for (l = all_types; l; l = g_list_next (l)){
376 info = (EvTypeInfo *)l->data;
378 default_filter = filter = gtk_file_filter_new ();
379 gtk_file_filter_set_name (filter, info->desc);
380 file_filter_add_mime_types (info, filter);
381 gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (chooser), filter);
385 g_list_foreach (all_types, (GFunc)g_free, NULL);
386 g_list_free (all_types);
388 filter = gtk_file_filter_new ();
389 gtk_file_filter_set_name (filter, _("All Files"));
390 gtk_file_filter_add_pattern (filter, "*");
391 gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (chooser), filter);
393 gtk_file_chooser_set_filter (GTK_FILE_CHOOSER (chooser),
394 document == NULL ? document_filter : default_filter);