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midori/katze/katze-xbel.c
Christian Dywan e91d077a84 Enhance Web Settings greatly with new properties. 
A lot of new properties are added, which are going to
be the basis of the coming configuration replacement.

Also a little cleanup is done in a few places.
2008-04-13 11:36:42 +02:00

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/*
Copyright (C) 2007-2008 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.
*/
/**
* TODO:
* - Support info > metadata, alias, added, modified, visited
* - Compatibility: The Nokia 770 *requires* metadata and folder
* - Compatibility: Kazehakase's bookmarks
* - Compatibility: Epiphany's bookmarks
* - XML Indentation
**/
#include "katze-xbel.h"
#include <stdio.h>
#include <string.h>
#include <libxml/parser.h>
#include <libxml/tree.h>
#include <glib/gi18n.h>
#include "katze-utils.h"
struct _KatzeXbelItemPrivate
{
guint refs;
KatzeXbelItemKind kind;
KatzeXbelItem* parent;
GList* items; // folder
gboolean folded; // foolder
gchar* title; // !separator
gchar* desc; // folder and bookmark
gchar* href; // bookmark
//time_t added; // !separator
//time_t modfied; // bookmark
//time_t visited; // bookmark
} ;
#define KATZE_XBEL_ITEM_GET_PRIVATE(item) \
item->priv
// Private: Create a new item of a certain type
static KatzeXbelItem*
katze_xbel_item_new (KatzeXbelItemKind kind)
{
KatzeXbelItem* item = g_new (KatzeXbelItem, 1);
KATZE_XBEL_ITEM_GET_PRIVATE (item) = g_new (KatzeXbelItemPrivate, 1);
KatzeXbelItemPrivate* priv = KATZE_XBEL_ITEM_GET_PRIVATE (item);
priv->refs = 1;
priv->parent = NULL;
priv->kind = kind;
if (kind == KATZE_XBEL_ITEM_KIND_FOLDER)
{
priv->items = NULL;
priv->folded = TRUE;
}
if (kind != KATZE_XBEL_ITEM_KIND_SEPARATOR)
{
priv->title = NULL;
priv->desc = NULL;
}
if (kind == KATZE_XBEL_ITEM_KIND_BOOKMARK)
priv->href = g_strdup ("");
return item;
}
/**
* katze_xbel_bookmark_new:
*
* Create a new empty bookmark.
*
* Return value: a newly allocated bookmark
**/
KatzeXbelItem*
katze_xbel_bookmark_new (void)
{
return katze_xbel_item_new (KATZE_XBEL_ITEM_KIND_BOOKMARK);
}
static KatzeXbelItem*
katze_xbel_bookmark_from_xmlNodePtr (xmlNodePtr cur)
{
g_return_val_if_fail (cur, NULL);
KatzeXbelItem* bookmark = katze_xbel_bookmark_new ();
xmlChar* key = xmlGetProp (cur, (xmlChar*)"href");
katze_xbel_bookmark_set_href (bookmark, (gchar*)key);
cur = cur->xmlChildrenNode;
while (cur)
{
if (!xmlStrcmp (cur->name, (const xmlChar*)"title"))
{
xmlChar* key = xmlNodeGetContent (cur);
katze_xbel_item_set_title (bookmark, g_strstrip ((gchar*)key));
}
else if (!xmlStrcmp (cur->name, (const xmlChar*)"desc"))
{
xmlChar* key = xmlNodeGetContent (cur);
katze_xbel_item_set_desc (bookmark, g_strstrip ((gchar*)key));
}
cur = cur->next;
}
return bookmark;
}
/**
* katze_katze_xbel_separator_new:
*
* Create a new separator.
*
* The returned item must be freed eventually.
*
* Return value: a newly allocated separator.
**/
KatzeXbelItem*
katze_xbel_separator_new (void)
{
return katze_xbel_item_new (KATZE_XBEL_ITEM_KIND_SEPARATOR);
}
/**
* katze_xbel_folder_new:
*
* Create a new empty folder.
*
* The returned item must be freed eventually.
*
* Return value: a newly allocated folder.
**/
KatzeXbelItem*
katze_xbel_folder_new (void)
{
return katze_xbel_item_new (KATZE_XBEL_ITEM_KIND_FOLDER);
}
// Private: Create a folder from an xmlNodePtr
static KatzeXbelItem*
katze_xbel_folder_from_xmlNodePtr (xmlNodePtr cur)
{
g_return_val_if_fail (cur, NULL);
KatzeXbelItem* folder = katze_xbel_folder_new ();
KatzeXbelItemPrivate* priv = KATZE_XBEL_ITEM_GET_PRIVATE (folder);
xmlChar* key = xmlGetProp (cur, (xmlChar*)"folded");
if (key)
{
if (!g_ascii_strncasecmp ((gchar*)key, "yes", 3))
priv->folded = TRUE;
else if (!g_ascii_strncasecmp ((gchar*)key, "no", 2))
priv->folded = FALSE;
else
g_warning ("XBEL: Unknown value for folded.");
xmlFree (key);
}
cur = cur->xmlChildrenNode;
while (cur)
{
if (!xmlStrcmp (cur->name, (const xmlChar*)"title"))
{
xmlChar* key = xmlNodeGetContent (cur);
katze_assign (priv->title, g_strstrip ((gchar*)key));
}
else if (!xmlStrcmp (cur->name, (const xmlChar*)"desc"))
{
xmlChar* key = xmlNodeGetContent (cur);
katze_assign (priv->desc, g_strstrip ((gchar*)key));
}
else if (!xmlStrcmp (cur->name, (const xmlChar*)"folder"))
{
KatzeXbelItem* item = katze_xbel_folder_from_xmlNodePtr (cur);
KATZE_XBEL_ITEM_GET_PRIVATE (item)->parent = folder;
priv->items = g_list_prepend (priv->items, item);
}
else if (!xmlStrcmp (cur->name, (const xmlChar*)"bookmark"))
{
KatzeXbelItem* item = katze_xbel_bookmark_from_xmlNodePtr (cur);
KATZE_XBEL_ITEM_GET_PRIVATE (item)->parent = folder;
priv->items = g_list_prepend (priv->items, item);
}
else if (!xmlStrcmp (cur->name, (const xmlChar*)"separator"))
{
KatzeXbelItem* item = katze_xbel_separator_new ();
KATZE_XBEL_ITEM_GET_PRIVATE (item)->parent = folder;
priv->items = g_list_prepend (priv->items, item);
}
cur = cur->next;
}
// Prepending and reversing is faster than appending
priv->items = g_list_reverse (priv->items);
return folder;
}
// Private: Loads the contents from an xmlNodePtr into a folder.
static gboolean
katze_xbel_folder_from_xmlDocPtr (KatzeXbelItem* folder,
xmlDocPtr doc)
{
g_return_val_if_fail (katze_xbel_folder_is_empty (folder), FALSE);
g_return_val_if_fail (doc, FALSE);
KatzeXbelItemPrivate* priv = KATZE_XBEL_ITEM_GET_PRIVATE (folder);
xmlNodePtr cur = xmlDocGetRootElement (doc);
xmlChar* version = xmlGetProp (cur, (xmlChar*)"version");
if (xmlStrcmp (version, (xmlChar*)"1.0"))
g_warning ("XBEL version is not 1.0.");
xmlFree (version);
katze_assign (priv->title, (gchar*)xmlGetProp (cur, (xmlChar*)"title"));
katze_assign (priv->desc, (gchar*)xmlGetProp (cur, (xmlChar*)"desc"));
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)
{
KatzeXbelItem* item = NULL;
if (!xmlStrcmp (cur->name, (const xmlChar*)"folder"))
item = katze_xbel_folder_from_xmlNodePtr (cur);
else if (!xmlStrcmp (cur->name, (const xmlChar*)"bookmark"))
item = katze_xbel_bookmark_from_xmlNodePtr (cur);
else if (!xmlStrcmp (cur->name, (const xmlChar*)"separator"))
item = katze_xbel_separator_new ();
/*else if (!xmlStrcmp (cur->name, (const xmlChar*)"info"))
item = katze_xbel_parse_info (xbel, cur);*/
if (item)
{
KATZE_XBEL_ITEM_GET_PRIVATE (item)->parent = folder;
priv->items = g_list_prepend (priv->items, item);
}
cur = cur->next;
}
// Prepending and reversing is faster than appending
priv->items = g_list_reverse (priv->items);
return TRUE;
}
/**
* katze_xbel_item_ref:
* @item: a valid item
*
* Ref an KatzeXbelItem.
*
* Ref means that the reference count is increased by one.
*
* This has no effect on children of a folder.
**/
void
katze_xbel_item_ref (KatzeXbelItem* item)
{
g_return_if_fail (item);
KatzeXbelItemPrivate* priv = KATZE_XBEL_ITEM_GET_PRIVATE (item);
priv->refs++;
}
/**
* katze_xbel_item_unref:
* @item: a valid item
*
* Unref an KatzeXbelItem. If @item is a folder all of its children will also
* be unreffed automatically.
*
* Unref means that the reference count is decreased. If there are no
* references left, the memory will be freed and if needed removed from
* its containing folder.
**/
void
katze_xbel_item_unref (KatzeXbelItem* item)
{
g_return_if_fail (item);
KatzeXbelItemPrivate* priv = KATZE_XBEL_ITEM_GET_PRIVATE (item);
priv->refs--;
if (priv->refs)
return;
if (priv->parent)
katze_xbel_folder_remove_item (priv->parent, item);
if (priv->kind == KATZE_XBEL_ITEM_KIND_FOLDER)
{
guint n = katze_xbel_folder_get_n_items (item);
guint i;
for (i = 0; i < n; i++)
{
KatzeXbelItem* _item = katze_xbel_folder_get_nth_item (item, i);
KATZE_XBEL_ITEM_GET_PRIVATE (_item)->parent = NULL;
katze_xbel_item_unref (_item);
}
g_list_free (priv->items);
}
if (priv->kind != KATZE_XBEL_ITEM_KIND_SEPARATOR)
{
g_free (priv->title);
g_free (priv->desc);
}
if (priv->kind == KATZE_XBEL_ITEM_KIND_BOOKMARK)
g_free (priv->href);
g_free (item);
}
/**
* katze_xbel_item_copy:
* @item: the item to copy
*
* Copy an KatzeXbelItem.
*
* The returned item must be unreffed eventually.
*
* Return value: a copy of @item
**/
KatzeXbelItem*
katze_xbel_item_copy (KatzeXbelItem* item)
{
g_return_val_if_fail (item, NULL);
KatzeXbelItemPrivate* priv = KATZE_XBEL_ITEM_GET_PRIVATE (item);
KatzeXbelItem* copy = katze_xbel_item_new (priv->kind);
if (katze_xbel_item_is_folder (item))
{
guint n = katze_xbel_folder_get_n_items (item);
guint i;
for (i = 0; i < n; i++)
{
KatzeXbelItem* _item = katze_xbel_folder_get_nth_item (item, i);
katze_xbel_folder_append_item (copy, katze_xbel_item_copy (_item));
}
}
if (priv->kind != KATZE_XBEL_ITEM_KIND_SEPARATOR)
{
katze_xbel_item_set_title (copy, priv->title);
katze_xbel_item_set_desc (copy, priv->desc);
}
if (priv->kind == KATZE_XBEL_ITEM_KIND_BOOKMARK)
katze_xbel_bookmark_set_href (copy, priv->href);
return copy;
}
GType
katze_xbel_item_get_type (void)
{
static GType type = 0;
if (!type)
type = g_pointer_type_register_static ("katze_xbel_item");
return type;
}
/**
* katze_xbel_folder_append_item:
* @folder: a folder
* @item: the item to append
*
* Append the given item to a folder.
*
* The item is actually moved and must not be contained in another folder.
*
**/
void
katze_xbel_folder_append_item (KatzeXbelItem* folder,
KatzeXbelItem* item)
{
g_return_if_fail (!katze_xbel_item_get_parent (item));
g_return_if_fail (katze_xbel_item_is_folder (folder));
KatzeXbelItemPrivate* priv = KATZE_XBEL_ITEM_GET_PRIVATE (folder);
priv->items = g_list_append (priv->items, item);
KATZE_XBEL_ITEM_GET_PRIVATE (item)->parent = folder;
}
/**
* katze_xbel_folder_prepend_item:
* @folder: a folder
* @item: the item to prepend
*
* Prepend the given item to a folder.
*
* The item is actually moved and must not be contained in another folder.
*
**/
void
katze_xbel_folder_prepend_item (KatzeXbelItem* folder,
KatzeXbelItem* item)
{
g_return_if_fail (!katze_xbel_item_get_parent (item));
g_return_if_fail (katze_xbel_item_is_folder (folder));
KatzeXbelItemPrivate* priv = KATZE_XBEL_ITEM_GET_PRIVATE (folder);
priv->items = g_list_prepend (priv->items, item);
KATZE_XBEL_ITEM_GET_PRIVATE (item)->parent = folder;
}
/**
* katze_xbel_folder_remove_item:
* @folder: a folder
* @item: the item to remove
*
* Remove the given @item from a @folder.
**/
void
katze_xbel_folder_remove_item (KatzeXbelItem* folder,
KatzeXbelItem* item)
{
g_return_if_fail (item);
g_return_if_fail (katze_xbel_item_get_parent(folder) != item);
KatzeXbelItemPrivate* priv = KATZE_XBEL_ITEM_GET_PRIVATE (folder);
// Fortunately we know that items are unique
priv->items = g_list_remove (priv->items, item);
KATZE_XBEL_ITEM_GET_PRIVATE (item)->parent = NULL;
}
/**
* katze_xbel_folder_get_n_items:
* @folder: a folder
*
* Retrieve the number of items contained in the given @folder.
*
* Return value: number of items
**/
guint
katze_xbel_folder_get_n_items (KatzeXbelItem* folder)
{
g_return_val_if_fail (katze_xbel_item_is_folder (folder), 0);
KatzeXbelItemPrivate* priv = KATZE_XBEL_ITEM_GET_PRIVATE (folder);
return g_list_length (priv->items);
}
/**
* katze_xbel_folder_get_nth_item:
* @folder: a folder
* @n: the index of an item
*
* Retrieve an item contained in the given @folder by its index.
*
* Return value: the item at the given index or %NULL
**/
KatzeXbelItem*
katze_xbel_folder_get_nth_item (KatzeXbelItem* folder,
guint n)
{
g_return_val_if_fail (katze_xbel_item_is_folder(folder), NULL);
KatzeXbelItemPrivate* priv = KATZE_XBEL_ITEM_GET_PRIVATE (folder);
return (KatzeXbelItem*) g_list_nth_data (priv->items, n);
}
/**
* katze_xbel_folder_is_empty:
* @folder: A folder.
*
* Determines wether or not a folder contains no items. This is significantly
* faster than katze_xbel_folder_get_n_items for this particular purpose.
*
* Return value: Wether the given @folder is folded.
**/
gboolean
katze_xbel_folder_is_empty (KatzeXbelItem* folder)
{
return !katze_xbel_folder_get_nth_item (folder, 0);
}
/**
* katze_xbel_folder_get_folded:
* @folder: A folder.
*
* Determines wether or not a folder is folded. If a folder is not folded
* it should not be exposed in a user interface.
*
* New folders are folded by default.
*
* Return value: Wether the given @folder is folded.
**/
gboolean
katze_xbel_folder_get_folded (KatzeXbelItem* folder)
{
g_return_val_if_fail (katze_xbel_item_is_folder (folder), TRUE);
KatzeXbelItemPrivate* priv = KATZE_XBEL_ITEM_GET_PRIVATE (folder);
return priv->folded;
}
/**
* katze_xbel_item_get_kind:
* @item: A item.
*
* Determines the kind of an item.
*
* Return value: The kind of the given @item.
**/
KatzeXbelItemKind
katze_xbel_item_get_kind (KatzeXbelItem* item)
{
KatzeXbelItemPrivate* priv = KATZE_XBEL_ITEM_GET_PRIVATE (item);
return priv->kind;
}
/**
* katze_xbel_item_get_parent:
* @item: A valid item.
*
* Retrieves the parent folder of an item.
*
* Return value: The parent folder of the given @item or %NULL.
**/
KatzeXbelItem*
katze_xbel_item_get_parent (KatzeXbelItem* item)
{
g_return_val_if_fail (item, NULL);
KatzeXbelItemPrivate* priv = KATZE_XBEL_ITEM_GET_PRIVATE (item);
return priv->parent;
}
/**
* katze_xbel_item_get_title:
* @item: A valid item.
*
* Retrieves the title of an item.
*
* Return value: The title of the given @item or %NULL.
**/
G_CONST_RETURN gchar*
katze_xbel_item_get_title (KatzeXbelItem* item)
{
g_return_val_if_fail (!katze_xbel_item_is_separator (item), NULL);
KatzeXbelItemPrivate* priv = KATZE_XBEL_ITEM_GET_PRIVATE (item);
return priv->title;
}
/**
* katze_xbel_item_get_desc:
* @item: A valid item.
*
* Retrieves the description of an item.
*
* Return value: The description of the @item or %NULL.
**/
G_CONST_RETURN gchar*
katze_xbel_item_get_desc (KatzeXbelItem* item)
{
g_return_val_if_fail (!katze_xbel_item_is_separator (item), NULL);
KatzeXbelItemPrivate* priv = KATZE_XBEL_ITEM_GET_PRIVATE (item);
return priv->desc;
}
/**
* katze_xbel_bookmark_get_href:
* @bookmark: A bookmark.
*
* Retrieves the uri of a bookmark. The value is guaranteed to not be %NULL.
*
* Return value: The uri of the @bookmark.
**/
G_CONST_RETURN gchar*
katze_xbel_bookmark_get_href (KatzeXbelItem* bookmark)
{
g_return_val_if_fail (katze_xbel_item_is_bookmark (bookmark), NULL);
KatzeXbelItemPrivate* priv = KATZE_XBEL_ITEM_GET_PRIVATE (bookmark);
return priv->href;
}
/**
* katze_xbel_item_is_bookmark:
* @item: A valid item.
*
* Determines wether or not an item is a bookmark.
*
* Return value: %TRUE if the @item is a bookmark.
**/
gboolean
katze_xbel_item_is_bookmark (KatzeXbelItem* item)
{
g_return_val_if_fail (item, FALSE);
KatzeXbelItemPrivate* priv = KATZE_XBEL_ITEM_GET_PRIVATE (item);
return priv->kind == KATZE_XBEL_ITEM_KIND_BOOKMARK;
}
/**
* katze_xbel_item_is_separator:
* @item: A valid item.
*
* Determines wether or not an item is a separator.
*
* Return value: %TRUE if the @item is a separator.
**/
gboolean katze_xbel_item_is_separator (KatzeXbelItem* item)
{
g_return_val_if_fail (item, FALSE);
KatzeXbelItemPrivate* priv = KATZE_XBEL_ITEM_GET_PRIVATE (item);
return priv->kind == KATZE_XBEL_ITEM_KIND_SEPARATOR;
}
/**
* katze_xbel_item_is_folder:
* @item: A valid item.
*
* Determines wether or not an item is a folder.
*
* Return value: %TRUE if the item is a folder.
**/
gboolean
katze_xbel_item_is_folder (KatzeXbelItem* item)
{
g_return_val_if_fail (item, FALSE);
KatzeXbelItemPrivate* priv = KATZE_XBEL_ITEM_GET_PRIVATE (item);
return priv->kind == KATZE_XBEL_ITEM_KIND_FOLDER;
}
/**
* katze_xbel_folder_set_folded:
* @folder: A folder.
* @folded: TRUE if the folder is folded.
*
* Sets the foldedness of the @folder.
**/
void
katze_xbel_folder_set_folded (KatzeXbelItem* folder,
gboolean folded)
{
g_return_if_fail (katze_xbel_item_is_folder (folder));
KatzeXbelItemPrivate* priv = KATZE_XBEL_ITEM_GET_PRIVATE (folder);
priv->folded = folded;
}
/**
* katze_xbel_item_set_title:
* @item: A valid item.
* @title: A string to use for the title.
*
* Sets the title of the @item.
**/
void
katze_xbel_item_set_title (KatzeXbelItem* item,
const gchar* title)
{
g_return_if_fail (!katze_xbel_item_is_separator (item));
KatzeXbelItemPrivate* priv = KATZE_XBEL_ITEM_GET_PRIVATE (item);
katze_assign (priv->title, g_strdup (title));
}
/**
* katze_xbel_item_set_desc:
* @item: A valid item.
* @title: A string to use for the description.
*
* Sets the description of the @item.
**/
void
katze_xbel_item_set_desc (KatzeXbelItem* item,
const gchar* desc)
{
g_return_if_fail (!katze_xbel_item_is_separator (item));
KatzeXbelItemPrivate* priv = KATZE_XBEL_ITEM_GET_PRIVATE (item);
katze_assign (priv->desc, g_strdup (desc));
}
/**
* katze_xbel_bookmark_set_href:
* @bookmark: A bookmark.
* @href: A string containing a valid uri.
*
* Sets the uri of the bookmark.
*
* The uri must not be %NULL.
*
* This uri is not currently validated in any way. This may change in the future.
**/
void
katze_xbel_bookmark_set_href (KatzeXbelItem* bookmark,
const gchar* href)
{
g_return_if_fail (katze_xbel_item_is_bookmark (bookmark));
g_return_if_fail (href);
KatzeXbelItemPrivate* priv = KATZE_XBEL_ITEM_GET_PRIVATE (bookmark);
katze_assign (priv->href, g_strdup (href));
}
gboolean
katze_xbel_folder_from_data (KatzeXbelItem* folder,
const gchar* data,
GError** error)
{
g_return_val_if_fail (katze_xbel_folder_is_empty (folder), FALSE);
g_return_val_if_fail (data, FALSE);
xmlDocPtr doc;
if((doc = xmlParseMemory (data, strlen (data))) == NULL)
{
// No valid xml or broken encoding
*error = g_error_new_literal (KATZE_XBEL_ERROR, KATZE_XBEL_ERROR_READ,
_("Malformed document."));
return FALSE;
}
if (!katze_xbel_folder_from_xmlDocPtr (folder, doc))
{
// Parsing failed
xmlFreeDoc(doc);
*error = g_error_new_literal (KATZE_XBEL_ERROR, KATZE_XBEL_ERROR_READ,
_("Malformed document."));
return FALSE;
}
xmlFreeDoc(doc);
return TRUE;
}
/**
* katze_xbel_folder_from_file:
* @folder: An empty folder.
* @file: A relative path to a file.
* @error: return location for a GError or %NULL
*
* Tries to load @file.
*
* Return value: %TRUE on success or %FALSE when an error occured.
**/
gboolean
katze_xbel_folder_from_file (KatzeXbelItem* folder,
const gchar* file,
GError** error)
{
g_return_val_if_fail (katze_xbel_folder_is_empty (folder), FALSE);
g_return_val_if_fail (file, FALSE);
if (!g_file_test (file, 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;
}
xmlDocPtr doc;
if ((doc = xmlParseFile (file)) == NULL)
{
// No valid xml or broken encoding
*error = g_error_new_literal (KATZE_XBEL_ERROR, KATZE_XBEL_ERROR_READ,
_("Malformed document."));
return FALSE;
}
if (!katze_xbel_folder_from_xmlDocPtr (folder, doc))
{
// Parsing failed
xmlFreeDoc (doc);
*error = g_error_new_literal (KATZE_XBEL_ERROR, KATZE_XBEL_ERROR_READ,
_("Malformed document."));
return FALSE;
}
xmlFreeDoc (doc);
return TRUE;
}
/**
* katze_xbel_folder_from_data_dirs:
* @folder: An empty folder.
* @file: A relative path to a file.
* @full_path: return location for the full path of the file or %NULL
* @error: return location for a GError or %NULL
*
* Tries to load @file from the user data dir or any of the system data dirs.
*
* Return value: %TRUE on success or %FALSE when an error occured.
**/
gboolean
katze_xbel_folder_from_data_dirs (KatzeXbelItem* folder,
const gchar* file,
gchar** full_path,
GError** error)
{
g_return_val_if_fail (katze_xbel_folder_is_empty (folder), FALSE);
g_return_val_if_fail (file, FALSE);
// FIXME: Essentially unimplemented
*error = g_error_new_literal (KATZE_XBEL_ERROR, KATZE_XBEL_ERROR_READ,
_("Malformed document."));
return FALSE;
}
static gchar*
katze_xbel_xml_element (const gchar* name,
const gchar* value)
{
if (!value)
return g_strdup ("");
gchar* valueEscaped = g_markup_escape_text (value, -1);
gchar* markup = g_strdup_printf ("<%s>%s</%s>\n",
name, valueEscaped, name);
g_free (valueEscaped);
return markup;
}
static gchar*
katze_xbel_item_to_data (KatzeXbelItem* item)
{
g_return_val_if_fail (item, NULL);
KatzeXbelItemPrivate* priv = KATZE_XBEL_ITEM_GET_PRIVATE (item);
gchar* markup = NULL;
switch (priv->kind)
{
case KATZE_XBEL_ITEM_KIND_FOLDER:
{
GString* _markup = g_string_new (NULL);
guint n = katze_xbel_folder_get_n_items (item);
guint i;
for (i = 0; i < n; i++)
{
KatzeXbelItem* _item = katze_xbel_folder_get_nth_item (item, i);
gchar* item_markup = katze_xbel_item_to_data (_item);
g_string_append (_markup, item_markup);
g_free (item_markup);
}
gchar* folded = priv->folded ? NULL : g_strdup_printf (" folded=\"no\"");
gchar* title = katze_xbel_xml_element ("title", priv->title);
gchar* desc = katze_xbel_xml_element ("desc", priv->desc);
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);
break;
}
case KATZE_XBEL_ITEM_KIND_BOOKMARK:
{
gchar* href_escaped = g_markup_escape_text (priv->href, -1);
gchar* href = g_strdup_printf (" href=\"%s\"", href_escaped);
g_free (href_escaped);
gchar* title = katze_xbel_xml_element ("title", priv->title);
gchar* desc = katze_xbel_xml_element ("desc", priv->desc);
markup = g_strdup_printf ("<bookmark%s>\n%s%s%s</bookmark>\n",
href,
title, desc,
"");
g_free (href);
g_free (title);
g_free (desc);
break;
}
case KATZE_XBEL_ITEM_KIND_SEPARATOR:
markup = g_strdup ("<separator/>\n");
break;
default:
g_warning ("XBEL: Unknown item kind");
}
return markup;
}
/**
* katze_xbel_folder_to_data:
* @folder: A folder.
* @length: return location for the length of the created string or %NULL
* @error: return location for a GError or %NULL
*
* Retrieve the contents of @folder as a string.
*
* Return value: %TRUE on success or %FALSE when an error occured.
**/
gchar*
katze_xbel_folder_to_data (KatzeXbelItem* folder,
gsize* length,
GError** error)
{
g_return_val_if_fail (katze_xbel_item_is_folder (folder), FALSE);
KatzeXbelItemPrivate* priv = KATZE_XBEL_ITEM_GET_PRIVATE (folder);
GString* inner_markup = g_string_new (NULL);
guint n = katze_xbel_folder_get_n_items (folder);
guint i;
for (i = 0; i < n; i++)
{
KatzeXbelItem* item = katze_xbel_folder_get_nth_item (folder, i);
gchar* sItem = katze_xbel_item_to_data (item);
g_string_append (inner_markup, sItem);
g_free (sItem);
}
gchar* title = katze_xbel_xml_element ("title", priv->title);
gchar* desc = katze_xbel_xml_element ("desc", priv->desc);
gchar* outer_markup;
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);
if (length)
*length = strlen (outer_markup);
return outer_markup;
}
/**
* katze_xbel_folder_to_file:
* @folder: A folder.
* @file: The destination filename.
* @error: return location for a GError or %NULL
*
* Write the contents of @folder to the specified file, creating it if necessary.
*
* Return value: %TRUE on success or %FALSE when an error occured.
**/
gboolean
katze_xbel_folder_to_file (KatzeXbelItem* folder,
const gchar* file,
GError** error)
{
g_return_val_if_fail (file, FALSE);
gchar* data;
if (!(data = katze_xbel_folder_to_data (folder, NULL, error)))
return FALSE;
FILE* fp;
if (!(fp = fopen (file, "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;
}
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