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midori/midori/midori-array.c
Christian Dywan dbc4c3f743 Move array loading and saving to midori_array_{from,to}_file 
This not only takes the code out of main but in the future
will allow extensions to use and enhance it.
2009-03-31 18:09:04 +02:00

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/*
Copyright (C) 2007-2009 Christian Dywan <christian@twotoasts.de>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
See the file COPYING for the full license text.
*/
#include <katze/katze.h>
#if HAVE_CONFIG_H
#include <config.h>
#endif
#include <glib/gi18n.h>
#if HAVE_LIBXML
#include <libxml/parser.h>
#include <libxml/tree.h>
#endif
#if HAVE_LIBXML
static KatzeItem*
katze_item_from_xmlNodePtr (xmlNodePtr cur)
{
KatzeItem* item;
xmlChar* key;
item = katze_item_new ();
key = xmlGetProp (cur, (xmlChar*)"href");
katze_item_set_uri (item, (gchar*)key);
g_free (key);
cur = cur->xmlChildrenNode;
while (cur)
{
if (!xmlStrcmp (cur->name, (const xmlChar*)"title"))
{
key = xmlNodeGetContent (cur);
katze_item_set_name (item, g_strstrip ((gchar*)key));
g_free (key);
}
else if (!xmlStrcmp (cur->name, (const xmlChar*)"desc"))
{
key = xmlNodeGetContent (cur);
katze_item_set_text (item, g_strstrip ((gchar*)key));
g_free (key);
}
cur = cur->next;
}
return item;
}
/* Create an array from an xmlNodePtr */
static KatzeArray*
katze_array_from_xmlNodePtr (xmlNodePtr cur)
{
KatzeArray* array;
xmlChar* key;
KatzeItem* item;
array = katze_array_new (KATZE_TYPE_ARRAY);
key = xmlGetProp (cur, (xmlChar*)"folded");
if (key)
{
/* if (!g_ascii_strncasecmp ((gchar*)key, "yes", 3))
folder->folded = TRUE;
else if (!g_ascii_strncasecmp ((gchar*)key, "no", 2))
folder->folded = FALSE;
else
g_warning ("XBEL: Unknown value for folded."); */
xmlFree (key);
}
cur = cur->xmlChildrenNode;
while (cur)
{
if (!xmlStrcmp (cur->name, (const xmlChar*)"title"))
{
key = xmlNodeGetContent (cur);
katze_item_set_name (KATZE_ITEM (array), g_strstrip ((gchar*)key));
}
else if (!xmlStrcmp (cur->name, (const xmlChar*)"desc"))
{
key = xmlNodeGetContent (cur);
katze_item_set_text (KATZE_ITEM (array), g_strstrip ((gchar*)key));
}
else if (!xmlStrcmp (cur->name, (const xmlChar*)"folder"))
{
item = (KatzeItem*)katze_array_from_xmlNodePtr (cur);
katze_array_add_item (array, item);
}
else if (!xmlStrcmp (cur->name, (const xmlChar*)"bookmark"))
{
item = katze_item_from_xmlNodePtr (cur);
katze_array_add_item (array, item);
}
else if (!xmlStrcmp (cur->name, (const xmlChar*)"separator"))
{
item = katze_item_new ();
katze_array_add_item (array, item);
}
cur = cur->next;
}
return array;
}
/* Loads the contents from an xmlNodePtr into an array. */
static gboolean
katze_array_from_xmlDocPtr (KatzeArray* array,
xmlDocPtr doc)
{
xmlNodePtr cur;
xmlChar* version;
gchar* value;
KatzeItem* item;
cur = xmlDocGetRootElement (doc);
version = xmlGetProp (cur, (xmlChar*)"version");
if (xmlStrcmp (version, (xmlChar*)"1.0"))
g_warning ("XBEL version is not 1.0.");
xmlFree (version);
value = (gchar*)xmlGetProp (cur, (xmlChar*)"title");
katze_item_set_name (KATZE_ITEM (array), value);
g_free (value);
value = (gchar*)xmlGetProp (cur, (xmlChar*)"desc");
katze_item_set_text (KATZE_ITEM (array), value);
g_free (value);
if ((cur = xmlDocGetRootElement (doc)) == NULL)
{
/* Empty document */
return FALSE;
}
if (xmlStrcmp (cur->name, (const xmlChar*)"xbel"))
{
/* Wrong document kind */
return FALSE;
}
cur = cur->xmlChildrenNode;
while (cur)
{
item = NULL;
if (!xmlStrcmp (cur->name, (const xmlChar*)"folder"))
item = (KatzeItem*)katze_array_from_xmlNodePtr (cur);
else if (!xmlStrcmp (cur->name, (const xmlChar*)"bookmark"))
item = katze_item_from_xmlNodePtr (cur);
else if (!xmlStrcmp (cur->name, (const xmlChar*)"separator"))
item = katze_item_new ();
/*else if (!xmlStrcmp (cur->name, (const xmlChar*)"info"))
item = katze_xbel_parse_info (xbel, cur);*/
if (item)
katze_array_add_item (array, item);
cur = cur->next;
}
return TRUE;
}
/**
* midori_array_from_file:
* @array: a #KatzeArray
* @filename: a filename to load from
* @format: the desired format
* @error: a #GError or %NULL
*
* Loads the contents of a file in the specified format.
*
* Return value: %TRUE on success, %FALSE otherwise
*
* Since: 0.1.6
**/
gboolean
midori_array_from_file (KatzeArray* array,
const gchar* filename,
const gchar* format,
GError** error)
{
xmlDocPtr doc;
g_return_val_if_fail (katze_array_is_a (array, KATZE_TYPE_ITEM), FALSE);
g_return_val_if_fail (filename != NULL, FALSE);
g_return_val_if_fail (!g_strcmp0 (format, "xbel"), FALSE);
g_return_val_if_fail (!error || !*error, FALSE);
if (!g_file_test (filename, G_FILE_TEST_EXISTS))
{
/* File doesn't exist */
*error = g_error_new_literal (G_FILE_ERROR, G_FILE_ERROR_NOENT,
_("File not found."));
return FALSE;
}
if ((doc = xmlParseFile (filename)) == NULL)
{
/* No valid xml or broken encoding */
*error = g_error_new_literal (G_FILE_ERROR, G_FILE_ERROR_FAILED,
_("Malformed document."));
return FALSE;
}
if (!katze_array_from_xmlDocPtr (array, doc))
{
/* Parsing failed */
xmlFreeDoc (doc);
*error = g_error_new_literal (G_FILE_ERROR, G_FILE_ERROR_FAILED,
_("Malformed document."));
return FALSE;
}
xmlFreeDoc (doc);
return TRUE;
}
#endif
static gchar*
_simple_xml_element (const gchar* name,
const gchar* value)
{
gchar* value_escaped;
gchar* markup;
if (!value)
return g_strdup ("");
value_escaped = g_markup_escape_text (value, -1);
markup = g_strdup_printf ("<%s>%s</%s>\n", name, value_escaped, name);
g_free (value_escaped);
return markup;
}
static gchar*
katze_item_to_data (KatzeItem* item)
{
gchar* markup;
g_return_val_if_fail (KATZE_IS_ITEM (item), NULL);
markup = NULL;
if (KATZE_IS_ARRAY (item))
{
GString* _markup = g_string_new (NULL);
guint i = 0;
KatzeItem* _item;
while ((_item = katze_array_get_nth_item (KATZE_ARRAY (item), i++)))
{
gchar* item_markup = katze_item_to_data (_item);
g_string_append (_markup, item_markup);
g_free (item_markup);
}
/* gchar* folded = item->folded ? NULL : g_strdup_printf (" folded=\"no\""); */
gchar* title = _simple_xml_element ("title", katze_item_get_name (item));
gchar* desc = _simple_xml_element ("desc", katze_item_get_text (item));
markup = g_strdup_printf ("<folder%s>\n%s%s%s</folder>\n",
"" /* folded ? folded : "" */,
title, desc,
g_string_free (_markup, FALSE));
/* g_free (folded); */
g_free (title);
g_free (desc);
}
else if (katze_item_get_uri (item))
{
gchar* href_escaped = g_markup_escape_text (katze_item_get_uri (item), -1);
gchar* href = g_strdup_printf (" href=\"%s\"", href_escaped);
g_free (href_escaped);
gchar* title = _simple_xml_element ("title", katze_item_get_name (item));
gchar* desc = _simple_xml_element ("desc", katze_item_get_text (item));
markup = g_strdup_printf ("<bookmark%s>\n%s%s%s</bookmark>\n",
href,
title, desc,
"");
g_free (href);
g_free (title);
g_free (desc);
}
else
markup = g_strdup ("<separator/>\n");
return markup;
}
static gchar*
katze_array_to_xbel (KatzeArray* array,
GError** error)
{
GString* inner_markup;
guint i;
KatzeItem* item;
gchar* item_xml;
gchar* title;
gchar* desc;
gchar* outer_markup;
inner_markup = g_string_new (NULL);
i = 0;
while ((item = katze_array_get_nth_item (array, i++)))
{
item_xml = katze_item_to_data (item);
g_string_append (inner_markup, item_xml);
g_free (item_xml);
}
title = _simple_xml_element ("title", katze_item_get_name (KATZE_ITEM (array)));
desc = _simple_xml_element ("desc", katze_item_get_text (KATZE_ITEM (array)));
outer_markup = g_strdup_printf (
"%s%s<xbel version=\"1.0\">\n%s%s%s</xbel>\n",
"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n",
"<!DOCTYPE xbel PUBLIC \"+//IDN python.org//DTD "
"XML Bookmark Exchange Language 1.0//EN//XML\" "
"\"http://www.python.org/topics/xml/dtds/xbel-1.0.dtd\">\n",
title,
desc,
g_string_free (inner_markup, FALSE));
g_free (title);
g_free (desc);
return outer_markup;
}
static gboolean
midori_array_to_file_xbel (KatzeArray* array,
const gchar* filename,
GError** error)
{
gchar* data;
FILE* fp;
if (!(data = katze_array_to_xbel (array, error)))
return FALSE;
if (!(fp = fopen (filename, "w")))
{
*error = g_error_new_literal (G_FILE_ERROR, G_FILE_ERROR_ACCES,
_("Writing failed."));
return FALSE;
}
fputs (data, fp);
fclose (fp);
g_free (data);
return TRUE;
}
/**
* midori_array_to_file:
* @array: a #KatzeArray
* @filename: a filename to load from
* @format: the desired format
* @error: a #GError or %NULL
*
* Saves the contents to a file in the specified format.
*
* Return value: %TRUE on success, %FALSE otherwise
*
* Since: 0.1.6
**/
gboolean
midori_array_to_file (KatzeArray* array,
const gchar* filename,
const gchar* format,
GError** error)
{
g_return_val_if_fail (katze_array_is_a (array, KATZE_TYPE_ITEM), FALSE);
g_return_val_if_fail (filename, FALSE);
g_return_val_if_fail (!error || !*error, FALSE);
if (!g_strcmp0 (format, "xbel"))
return midori_array_to_file_xbel (array, filename, error);
g_critical ("Cannot write KatzeArray to unknown format '%s'.", format);
return FALSE;
}
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