*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#endif
#include <string.h>
+
#include <gio/gio.h>
#include <glib/gstdio.h>
-#include <glib/gi18n.h>
-#include <gtk/gtkfilechooserdialog.h>
+#include <glib/gi18n-lib.h>
+#include <gtk/gtk.h>
#include "ev-backends-manager.h"
#include "ev-document-factory.h"
return EV_COMPRESSION_NONE;
}
-static gchar *
-get_mime_type_from_uri (const gchar *uri, GError **error)
-{
- GFile *file;
- GFileInfo *file_info;
- gchar *mime_type;
-
- file = g_file_new_for_uri (uri);
- file_info = g_file_query_info (file,
- G_FILE_ATTRIBUTE_STANDARD_CONTENT_TYPE,
- 0, NULL, error);
- g_object_unref (file);
-
- if (file_info == NULL)
- return NULL;
-
- mime_type = g_strdup (g_file_info_get_content_type (file_info));
- g_object_unref (file_info);
-
- return mime_type;
-}
-
-static gchar *
-get_mime_type_from_data (const gchar *uri, GError **error)
-{
- GFile *file;
- GFileInputStream *input_stream;
- gssize size_read;
- guchar buffer[1024];
-
- file = g_file_new_for_uri (uri);
-
- input_stream = g_file_read (file, NULL, error);
- if (!input_stream) {
- g_object_unref (file);
- return NULL;
- }
-
- size_read = g_input_stream_read (G_INPUT_STREAM (input_stream),
- buffer, 1024, NULL, NULL);
- g_input_stream_close (G_INPUT_STREAM (input_stream), NULL, NULL);
-
- g_object_unref (file);
-
- if (size_read == -1)
- return NULL;
-
- return g_content_type_guess (NULL, /* no filename */
- buffer, 1024,
- NULL);
-}
+/*
+ * get_document_from_uri:
+ * @uri: the document URI
+ * @fast: whether to use fast MIME type detection
+ * @compression: a location to store the document's compression type
+ * @error: a #GError location to store an error, or %NULL
+ *
+ * Creates a #EvDocument instance for the document at @uri, using either
+ * fast or slow MIME type detection. If a document could be created,
+ * @compression is filled in with the document's compression type.
+ * On error, %NULL is returned and @error filled in.
+ *
+ * Returns: a new #EvDocument instance, or %NULL on error with @error filled in
+ */
static EvDocument *
get_document_from_uri (const char *uri,
- gboolean slow,
+ gboolean fast,
EvCompressionType *compression,
GError **error)
{
EvDocument *document = NULL;
gchar *mime_type = NULL;
+ GError *err = NULL;
*compression = EV_COMPRESSION_NONE;
- mime_type = slow ?
- get_mime_type_from_data (uri, error) :
- get_mime_type_from_uri (uri, error);
+ mime_type = ev_file_get_mime_type (uri, fast, &err);
if (mime_type == NULL) {
g_free (mime_type);
+
+ if (err == NULL) {
+ g_set_error_literal (error,
+ EV_DOCUMENT_ERROR,
+ EV_DOCUMENT_ERROR_INVALID,
+ _("Unknown MIME Type"));
+ } else {
+ g_propagate_error (error, err);
+ }
return NULL;
}
#endif /* ENABLE_PIXBUF */
if (document == NULL) {
- gchar *mime_desc;
+ gchar *content_type, *mime_desc = NULL;
+
+ content_type = g_content_type_from_mime_type (mime_type);
+ if (content_type)
+ mime_desc = g_content_type_get_description (content_type);
- mime_desc = g_content_type_get_description (mime_type);
g_set_error (error,
EV_DOCUMENT_ERROR,
- 0,
+ EV_DOCUMENT_ERROR_INVALID,
_("File type %s (%s) is not supported"),
- mime_desc, mime_type);
+ mime_desc ? mime_desc : "-", mime_type);
g_free (mime_desc);
+ g_free (content_type);
g_free (mime_type);
return NULL;
g_free (uri_unc);
}
+/**
+ * ev_document_factory_get_document:
+ * @uri: an URI
+ * @error: a #GError location to store an error, or %NULL
+ *
+ * Creates a #EvDocument for the document at @uri; or, if no backend handling
+ * the document's type is found, or an error occurred on opening the document,
+ * returns %NULL and fills in @error.
+ * If the document is encrypted, it is returned but also @error is set to
+ * %EV_DOCUMENT_ERROR_ENCRYPTED.
+ *
+ * Returns: a new #EvDocument, or %NULL.
+ */
EvDocument *
ev_document_factory_get_document (const char *uri, GError **error)
{
int result;
EvCompressionType compression;
gchar *uri_unc = NULL;
+ GError *err = NULL;
+
+ g_return_val_if_fail (uri != NULL, NULL);
+
+ document = get_document_from_uri (uri, TRUE, &compression, &err);
+ g_assert (document != NULL || err != NULL);
- document = get_document_from_uri (uri, FALSE, &compression, error);
- if (*error == NULL) {
- uri_unc = ev_file_uncompress (uri, compression, error);
+ if (document != NULL) {
+ uri_unc = ev_file_uncompress (uri, compression, &err);
if (uri_unc) {
g_object_set_data_full (G_OBJECT (document),
"uri-uncompressed",
uri_unc,
(GDestroyNotify) free_uncompressed_uri);
- }
-
- if (*error != NULL) {
+ } else if (err != NULL) {
/* Error uncompressing file */
- if (document)
- g_object_unref (document);
+ g_object_unref (document);
+ g_propagate_error (error, err);
return NULL;
}
- result = ev_document_load (document, uri_unc ? uri_unc : uri, error);
+ result = ev_document_load (document, uri_unc ? uri_unc : uri, &err);
- if (result == FALSE || *error) {
- if (*error &&
- (*error)->domain == EV_DOCUMENT_ERROR &&
- (*error)->code == EV_DOCUMENT_ERROR_ENCRYPTED)
+ if (result == FALSE || err) {
+ if (err &&
+ g_error_matches (err, EV_DOCUMENT_ERROR, EV_DOCUMENT_ERROR_ENCRYPTED)) {
+ g_propagate_error (error, err);
return document;
+ }
+ /* else fall through to slow mime code section below */
} else {
return document;
}
+
+ g_object_unref (document);
+ document = NULL;
}
/* Try again with slow mime detection */
- if (document)
- g_object_unref (document);
- document = NULL;
-
- if (*error)
- g_error_free (*error);
- *error = NULL;
-
+ g_clear_error (&err);
uri_unc = NULL;
- document = get_document_from_uri (uri, TRUE, &compression, error);
-
- if (*error != NULL) {
+ document = get_document_from_uri (uri, FALSE, &compression, &err);
+ if (document == NULL) {
+ g_assert (err != NULL);
+ g_propagate_error (error, err);
return NULL;
}
- uri_unc = ev_file_uncompress (uri, compression, error);
+ uri_unc = ev_file_uncompress (uri, compression, &err);
if (uri_unc) {
g_object_set_data_full (G_OBJECT (document),
"uri-uncompressed",
uri_unc,
(GDestroyNotify) free_uncompressed_uri);
- }
-
- if (*error != NULL) {
+ } else if (err != NULL) {
/* Error uncompressing file */
- if (document)
- g_object_unref (document);
+ g_propagate_error (error, err);
+
+ g_object_unref (document);
return NULL;
}
- result = ev_document_load (document, uri_unc ? uri_unc : uri, error);
-
+ result = ev_document_load (document, uri_unc ? uri_unc : uri, &err);
if (result == FALSE) {
- if (*error == NULL) {
- g_set_error (error,
- EV_DOCUMENT_ERROR,
- 0,
- _("Unknown MIME Type"));
- } else if ((*error)->domain == EV_DOCUMENT_ERROR &&
- (*error)->code == EV_DOCUMENT_ERROR_ENCRYPTED) {
+ if (err == NULL) {
+ /* FIXME: this really should not happen; the backend should
+ * always return a meaningful error.
+ */
+ g_set_error_literal (&err,
+ EV_DOCUMENT_ERROR,
+ EV_DOCUMENT_ERROR_INVALID,
+ _("Unknown MIME Type"));
+ } else if (g_error_matches (err, EV_DOCUMENT_ERROR, EV_DOCUMENT_ERROR_ENCRYPTED)) {
+ g_propagate_error (error, err);
return document;
}
- if (document)
- g_object_unref (document);
+ g_object_unref (document);
document = NULL;
+
+ g_propagate_error (error, err);
}
return document;
gtk_file_filter_add_mime_type (filter, mime_type);
}
-void
+/**
+ * ev_document_factory_add_filters:
+ * @chooser: a #GtkFileChooser
+ * @document: a #EvDocument, or %NULL
+ *
+ * Adds some file filters to @chooser.
+
+ * Always add a "All documents" format.
+ *
+ * If @document is not %NULL, adds a #GtkFileFilter for @document's MIME type.
+ *
+ * If @document is %NULL, adds a #GtkFileFilter for each document type that evince
+ * can handle.
+ */
+void
ev_document_factory_add_filters (GtkWidget *chooser, EvDocument *document)
{
GList *all_types;
GtkFileFilter *default_filter;
GtkFileFilter *document_filter;
+ g_return_if_fail (GTK_IS_FILE_CHOOSER (chooser));
+ g_return_if_fail (document == NULL || EV_IS_DOCUMENT (document));
+
all_types = ev_backends_manager_get_all_types_info ();
default_filter = document_filter = filter = gtk_file_filter_new ();