/* ev-convert-metadata.c * this file is part of atril, a mate document viewer * * Copyright (C) 2009 Carlos Garcia Campos <carlosgc@gnome.org> * * Atril is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * Atril is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ //#include <config.h> #include <gtk/gtk.h> #include <glib.h> #include <gio/gio.h> #include <glib/gi18n.h> #include <string.h> #include <libxml/tree.h> #define EV_METADATA_NAMESPACE "metadata::atril" typedef struct { xmlNodePtr cur; xmlChar *uri; } DocItem; typedef struct { GtkWidget *progress; GtkWidget *label; xmlDocPtr doc; GList *items; GList *current; guint n_item; } ConvertData; static void free_doc_item (DocItem *item) { xmlFree (item->uri); g_free (item); } static void convert_finish (ConvertData *data) { g_list_foreach (data->items, (GFunc)free_doc_item, NULL); g_list_free (data->items); xmlFreeDoc (data->doc); g_free (data); gtk_main_quit (); } static gboolean convert_file (ConvertData *data) { GFile *file; DocItem *item; const gchar *uri; xmlNodePtr node; xmlNodePtr cur; gint total, current; gchar *text; if (!data->current) return FALSE; item = (DocItem *) data->current->data; uri = (const gchar *)item->uri; node = item->cur; data->current = g_list_next (data->current); /* Update progress information */ total = g_list_length (data->items); current = ++(data->n_item); text = g_strdup_printf (_("Converting %s"), uri); gtk_label_set_text (GTK_LABEL (data->label), text); g_free (text); text = g_strdup_printf (_("%d of %d documents converted"), current, total); gtk_progress_bar_set_text (GTK_PROGRESS_BAR (data->progress), text); g_free (text); gtk_progress_bar_set_fraction (GTK_PROGRESS_BAR (data->progress), (gdouble)(current - 1) / total); file = g_file_new_for_uri (uri); if (!g_file_query_exists (file, NULL)) { g_printerr ("Uri %s does not exist\n", uri); g_object_unref (file); return data->current != NULL; } for (cur = node->xmlChildrenNode; cur != NULL; cur = cur->next) { xmlChar *key; xmlChar *value; if (xmlStrcmp (cur->name, (const xmlChar *)"entry") != 0) continue; key = xmlGetProp (cur, (const xmlChar *)"key"); value = xmlGetProp (cur, (const xmlChar *)"value"); if (key && value) { GFileInfo *info; gchar *gio_key; GError *error = NULL; info = g_file_info_new (); gio_key = g_strconcat (EV_METADATA_NAMESPACE"::", key, NULL); g_file_info_set_attribute_string (info, gio_key, (const gchar *)value); g_free (gio_key); if (!g_file_set_attributes_from_info (file, info, 0, NULL, &error)) { g_printerr ("Error setting metadata for %s: %s\n", uri, error->message); g_error_free (error); } g_object_unref (info); } if (key) xmlFree (key); if (value) xmlFree (value); } g_object_unref (file); return data->current != NULL; } static void convert_metadata_cancel (GtkDialog *dialog, gint response_id, ConvertData *data) { convert_finish (data); exit (1); } static void show_progress_dialog (ConvertData *data) { GtkWidget *dialog; GtkWidget *action_area; GtkWidget *vbox, *pbox; GtkWidget *label; GtkWidget *progress; gchar *text; dialog = gtk_dialog_new_with_buttons (_("Converting metadata"), NULL, GTK_DIALOG_NO_SEPARATOR, GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL, NULL); action_area = gtk_dialog_get_action_area (GTK_DIALOG (dialog)); gtk_container_set_border_width (GTK_CONTAINER (dialog), 5); gtk_container_set_border_width (GTK_CONTAINER (action_area), 5); gtk_box_set_spacing (GTK_BOX (action_area), 6); vbox = gtk_dialog_get_content_area (GTK_DIALOG (dialog)); gtk_box_set_spacing (GTK_BOX (vbox), 12); label = gtk_label_new (NULL); gtk_label_set_line_wrap (GTK_LABEL (label), TRUE); gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.0); text = g_strdup_printf ("<b>%s</b>", _("Converting metadata")); gtk_label_set_markup (GTK_LABEL (label), text); g_free (text); gtk_box_pack_start (GTK_BOX (vbox), label, FALSE, FALSE, 0); gtk_widget_show (label); label = gtk_label_new (_("The metadata format used by Atril " "has changed, and hence it needs to be migrated. " "If the migration is cancelled the metadata " "storage will not work.")); gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.0); gtk_label_set_line_wrap (GTK_LABEL (label), TRUE); gtk_box_pack_start (GTK_BOX (vbox), label, TRUE, TRUE, 0); gtk_widget_show (label); pbox = gtk_vbox_new (FALSE, 6); progress = gtk_progress_bar_new (); data->progress = progress; gtk_box_pack_start (GTK_BOX (pbox), progress, TRUE, TRUE, 0); gtk_widget_show (progress); label = gtk_label_new (NULL); data->label = label; gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.0); gtk_label_set_ellipsize (GTK_LABEL (label), PANGO_ELLIPSIZE_END); gtk_box_pack_start (GTK_BOX (pbox), label, FALSE, FALSE, 0); gtk_widget_show (label); gtk_box_pack_start (GTK_BOX (vbox), pbox, TRUE, TRUE, 0); gtk_widget_show (pbox); g_signal_connect (dialog, "response", G_CALLBACK (convert_metadata_cancel), data); gtk_widget_show (dialog); } static gboolean convert_metadata_file (const gchar *filename) { ConvertData *data; xmlDocPtr doc; xmlNodePtr cur; if (!g_file_test (filename, G_FILE_TEST_EXISTS)) return FALSE; doc = xmlParseFile (filename); if (!doc) { g_printerr ("Error loading metadata file %s\n", filename); return FALSE; } cur = xmlDocGetRootElement (doc); if (!cur) { g_printerr ("Metadata file %s is empty\n", filename); xmlFreeDoc (doc); return TRUE; } if (xmlStrcmp (cur->name, (const xmlChar *) "metadata")) { g_printerr ("File %s is not a valid atril metadata file\n", filename); xmlFreeDoc (doc); return FALSE; } data = g_new0 (ConvertData, 1); data->doc = doc; for (cur = cur->xmlChildrenNode; cur != NULL; cur = cur->next) { xmlChar *uri; DocItem *item; if (xmlStrcmp (cur->name, (const xmlChar *)"document") != 0) continue; uri = xmlGetProp (cur, (const xmlChar *)"uri"); if (!uri) continue; item = g_new (DocItem, 1); item->uri = uri; item->cur = cur; data->items = g_list_prepend (data->items, item); } if (!data->items) { xmlFreeDoc (data->doc); g_free (data); return TRUE; } show_progress_dialog (data); data->current = data->items; g_idle_add_full (G_PRIORITY_DEFAULT_IDLE, (GSourceFunc)convert_file, data, (GDestroyNotify)convert_finish); return TRUE; } gint main (gint argc, gchar **argv) { if (argc != 2) { g_printerr ("%s\n", "Usage: atril-convert-metadata FILE"); return 1; } gtk_init (&argc, &argv); if (!convert_metadata_file (argv[1])) return 1; gtk_main (); return 0; }