[gnome-epub-thumbnailer] Update skeleton to fix crash with trash/recent files

[Bastien Nocera <hadess src gnome org>]

commit 53d83c1a4a7f140149fec7f2aecf91034dbb3546
Author: Bastien Nocera <hadess hadess net>
Date:   Mon Jan 6 12:45:24 2014 +0100

    Update skeleton to fix crash with trash/recent files

 gnome-thumbnailer-skeleton.c |   41 ++++++++++++++++++++++++++++++++++++++++-
 1 files changed, 40 insertions(+), 1 deletions(-)
---
diff --git a/gnome-thumbnailer-skeleton.c b/gnome-thumbnailer-skeleton.c
index b7ec3ec..e4c11a6 100644
--- a/gnome-thumbnailer-skeleton.c
+++ b/gnome-thumbnailer-skeleton.c
@@ -34,6 +34,40 @@ static int output_size = 256;
 static gboolean g_fatal_warnings = FALSE;
 static char **filenames = NULL;
 
+static char *
+get_target_uri (GFile *file)
+{
+       GFileInfo *info;
+       char *target;
+
+       info = g_file_query_info (file, G_FILE_ATTRIBUTE_STANDARD_TARGET_URI, G_FILE_QUERY_INFO_NONE, NULL, 
NULL);
+       if (info == NULL)
+               return NULL;
+       target = g_strdup (g_file_info_get_attribute_string (info, G_FILE_ATTRIBUTE_STANDARD_TARGET_URI));
+       g_object_unref (info);
+
+       return target;
+}
+
+static char *
+get_target_path (GFile *input)
+{
+       if (g_file_has_uri_scheme (input, "trash") != FALSE ||
+           g_file_has_uri_scheme (input, "recent") != FALSE) {
+               GFile *file;
+               char *input_uri;
+               char *input_path;
+
+               input_uri = get_target_uri (input);
+               file = g_file_new_for_uri (input_uri);
+               g_free (input_uri);
+               input_path = g_file_get_path (file);
+               g_object_unref (file);
+               return input_path;
+       }
+       return g_file_get_path (input);
+}
+
 static const GOptionEntry entries[] = {
        { "size", 's', 0, G_OPTION_ARG_INT, &output_size, "Size of the thumbnail in pixels", NULL },
        {"g-fatal-warnings", 0, 0, G_OPTION_ARG_NONE, &g_fatal_warnings, "Make all warnings fatal", NULL},
@@ -84,9 +118,14 @@ int main (int argc, char **argv)
        }
 
        input = g_file_new_for_commandline_arg (filenames[0]);
-       input_filename = g_file_get_path (input);
+       input_filename = get_target_path (input);
        g_object_unref (input);
 
+       if (input_filename == NULL) {
+               g_warning ("Could not get file path for %s", filenames[0]);
+               return 1;
+       }
+
        output = filenames[1];
 
 #ifdef THUMBNAILER_RETURNS_PIXBUF