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/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*-
nautilus-link-set.c: xml-based link file sets.
Copyright (C) 2000 Eazel, Inc.
This program 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.
This program 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., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
Author: Andy Hertzfeld <andy@eazel.com>
*/
#include <config.h>
#include "nautilus-link-set.h"
#include "nautilus-file-utilities.h"
#include "nautilus-file.h"
#include "nautilus-glib-extensions.h"
#include "nautilus-global-preferences.h"
#include "nautilus-link.h"
#include "nautilus-metadata.h"
#include "nautilus-preferences.h"
#include "nautilus-string.h"
#include "nautilus-xml-extensions.h"
#include <gnome-xml/parser.h>
#include <gnome-xml/xmlmemory.h>
#include <gtk/gtktogglebutton.h>
#include <gtk/gtkwindow.h>
#include <libgnome/gnome-util.h>
#include <libgnomevfs/gnome-vfs.h>
#include <stdlib.h>
#include <unistd.h>
/* routine to create a new link file in the specified directory */
static gboolean
create_new_link (const char *directory_path, const char *name, const char *image, const char *uri)
{
xmlDocPtr output_document;
xmlNodePtr root_node;
char *file_name;
int result;
/* create a new xml document */
output_document = xmlNewDoc ("1.0");
/* add the root node to the output document */
root_node = xmlNewDocNode (output_document, NULL, "nautilus_object", NULL);
xmlDocSetRootElement (output_document, root_node);
/* Add mime magic string so that the mime sniffer can recognize us.
* Note: The value of the tag has no meaning. */
xmlSetProp (root_node, "nautilus_link", "Nautilus Link");
/* Add link and custom icon tags */
xmlSetProp (root_node, "custom_icon", image);
xmlSetProp (root_node, "link", uri);
/* all done, so save the xml document as a link file */
file_name = nautilus_make_path (directory_path, name);
result = xmlSaveFile (file_name, output_document);
g_free (file_name);
xmlFreeDoc (output_document);
return result > 0;
}
/* utility to return link set path */
static xmlDocPtr
get_link_set_document(const char *link_set_name)
{
char *link_set_path;
xmlDocPtr document;
link_set_path = g_strdup_printf ("%s/linksets/%s.xml",
NAUTILUS_DATADIR,
link_set_name);
document = xmlParseFile (link_set_path);
g_free (link_set_path);
return document;
}
/* install a link set into the specified directory */
gboolean
nautilus_link_set_install (const char *directory_path, const char *link_set_name)
{
xmlDocPtr document;
xmlNodePtr node;
char *link_name, *image_name, *uri, *full_uri;
gboolean created;
/* load and parse the link set document */
document = get_link_set_document (link_set_name);
if (document == NULL) {
g_warning ("could not load %s", link_set_name);
return FALSE;
}
/* loop through the entries, generating link files */
for (node = nautilus_xml_get_children (xmlDocGetRootElement (document));
node != NULL; node = node->next) {
if (strcmp (node->name, "link") == 0) {
link_name = nautilus_xml_get_property_translated (node, "name");
image_name = xmlGetProp (node, "image");
uri = xmlGetProp (node, "uri");
/* Expand special URIs */
full_uri = gnome_vfs_expand_initial_tilde (uri);
/* create the link file */
created = create_new_link (directory_path, link_name,
image_name, full_uri);
xmlFree (link_name);
xmlFree (image_name);
xmlFree (uri);
g_free (full_uri);
if (!created) {
xmlFreeDoc (document);
return FALSE;
}
}
}
xmlFreeDoc (document);
return TRUE;
}
/* test to see if a link set is installed. Return TRUE if all of the members are installed, false otherwise */
gboolean
nautilus_link_set_is_installed (const char *directory_path, const char *link_set_name)
{
xmlDocPtr document;
xmlNodePtr node;
char *link_name, *file_name;
/* load and parse the link set document */
document = get_link_set_document (link_set_name);
if (document == NULL) {
g_warning ("could not load %s", link_set_name);
return FALSE;
}
/* loop through the entries, testing to see if any are present */
for (node = nautilus_xml_get_children (xmlDocGetRootElement (document));
node != NULL; node = node->next) {
if (strcmp (node->name, "link") == 0) {
link_name = nautilus_xml_get_property_translated (node, "name");
file_name = nautilus_make_path (directory_path, link_name);
xmlFree (link_name);
if (!g_file_exists (file_name)) {
g_free (file_name);
xmlFreeDoc (document);
return FALSE;
}
g_free (file_name);
}
}
xmlFreeDoc (document);
return TRUE;
}
/* remove a link set from the specified directory */
void
nautilus_link_set_remove (const char *directory_path, const char *link_set_name)
{
xmlDocPtr document;
xmlNodePtr node;
char *link_name, *file_name;
document = get_link_set_document(link_set_name);
if (document == NULL) {
g_message ("could not load %s", link_set_name);
return;
}
/* loop through the entries in the xml file, formulating the names of the link files and
deleting them or decrementing their reference count */
for (node = nautilus_xml_get_children (xmlDocGetRootElement (document));
node != NULL; node = node->next) {
if (strcmp (node->name, "link") == 0) {
/* formulate the link file path name */
link_name = nautilus_xml_get_property_translated (node, "name");
file_name = nautilus_make_path (directory_path, link_name);
xmlFree (link_name);
/* delete the file */
unlink (file_name);
g_free (link_name);
}
}
xmlFreeDoc (document);
}
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