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kz-smart-bookmark.c

/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */

/*
 *  Copyright (C) 2004 Takuro Ashie
 *  Copyright (C) 2004 Hiroyuki Ikezoe
 *
 *  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, 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.
 *
 *  $Id: kz-smart-bookmark.c,v 1.2 2004/11/22 01:08:41 ikezoe Exp $
 */

#include "kz-smart-bookmark.h"

#include <glib/gi18n.h>
#include <string.h>

#include "gobject-utils.h"
#include "eggregex.h"
#include "utils.h"

enum {
      PROP_0,
      PROP_SMART_LIST
};

static void     kz_smart_bookmark_class_init  (KzSmartBookmarkClass *klass);
static void     kz_smart_bookmark_init        (KzSmartBookmark *bookmark);
static void     kz_smart_bookmark_dispose     (GObject *object);
static void kz_smart_bookmark_set_property (GObject         *object,
                              guint            prop_id,
                              const GValue    *value,
                              GParamSpec      *pspec);
static void kz_smart_bookmark_get_property (GObject         *object,
                              guint            prop_id,
                              GValue          *value,
                              GParamSpec      *pspec);


static KzBookmarkClass *parent_class;


KZ_OBJECT_GET_TYPE(kz_smart_bookmark, "KzSmartBookmark", KzSmartBookmark,
               kz_smart_bookmark_class_init, kz_smart_bookmark_init,
               KZ_TYPE_BOOKMARK)

static GQuark smart_list_quark  = 0;

static void
kz_smart_bookmark_class_init (KzSmartBookmarkClass *klass)
{
      GObjectClass *object_class;

      parent_class = g_type_class_peek_parent(klass);
      object_class = (GObjectClass *) klass;

      object_class->dispose      = kz_smart_bookmark_dispose;
      object_class->set_property = kz_smart_bookmark_set_property;
      object_class->get_property = kz_smart_bookmark_get_property;
      
      g_object_class_install_property(
            object_class,
             PROP_SMART_LIST,
             g_param_spec_pointer(
                   "smart-list",
                   _("Smart List"),
                   _("The List for the Smart Bookmark"),
                   G_PARAM_READWRITE));

      smart_list_quark  = g_quark_from_string("KzBookmark::SmartBookmarkList");
}


static void
kz_smart_bookmark_init (KzSmartBookmark *smart)
{
}


static void
free_smart_list (GList *list)
{
      GList *node;

      if (!list) return;

      for (node = list; node; node = g_list_next(node))
      {
            KzSmartBookmarkProperty *prop = node->data;
            if (!prop) continue;
      
            if (prop->regex)
                  g_free(prop->regex);
            if (prop->uri)
                  g_free(prop->uri);
            if (prop->encode)
                  g_free(prop->encode);
            g_free(prop);
      }
      g_list_free(list);
      list = NULL;
}

static void
kz_smart_bookmark_dispose (GObject *object)
{
      KzSmartBookmark *smart;
      GList *smart_list;

      g_return_if_fail(KZ_IS_SMART_BOOKMARK(object));

      smart = KZ_SMART_BOOKMARK(object);

      /* smart property */
      smart_list = g_object_get_qdata(object, smart_list_quark);
      free_smart_list(smart_list);
      g_object_set_qdata(object, smart_list_quark, NULL);

      if (G_OBJECT_CLASS (parent_class)->dispose)
            G_OBJECT_CLASS (parent_class)->dispose(object);
}


static void
kz_smart_bookmark_set_property (GObject *object,
                    guint prop_id,
                    const GValue *value,
                    GParamSpec *pspec)
{
      switch (prop_id) {
      case PROP_SMART_LIST:
            g_object_set_qdata(object, smart_list_quark, 
                           g_value_get_pointer(value));
            break;
      default:
            G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
            break;
      }
}


static void
kz_smart_bookmark_get_property (GObject *object,
                 guint prop_id,
                 GValue *value,
                 GParamSpec *pspec)
{
      switch (prop_id) {
      case PROP_SMART_LIST:
            g_value_set_pointer(value, 
                            g_object_get_qdata(object, smart_list_quark));
            break;
      default:
            G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
            break;
      }
}


KzBookmark *
kz_smart_bookmark_new (void)
{
      KzSmartBookmark *smart;

      smart = g_object_new(KZ_TYPE_SMART_BOOKMARK, NULL);

      return KZ_BOOKMARK(smart);
}


void
kz_smart_bookmark_append_property (KzSmartBookmark *bookmark,
                                 const gchar *regex,
                                 const gchar *uri,
                                 const gchar *encode,
                                 gboolean urlencode)
{
      GList *smart_list;
      KzSmartBookmarkProperty *prop;

      g_return_if_fail(KZ_IS_BOOKMARK(bookmark));

      prop = g_new0(KzSmartBookmarkProperty, 1);
      if (regex)
            prop->regex = g_strdup(regex);
      if (uri)
            prop->uri   = g_strdup(uri);
      if (encode)
            prop->encode = g_strdup(encode);
      prop->urlencode = urlencode;

      smart_list = g_object_get_qdata(G_OBJECT(bookmark),
                              smart_list_quark);
      smart_list = g_list_append(smart_list, prop);

      g_object_set(G_OBJECT(bookmark), "smart-list", smart_list, NULL);
}

void
kz_smart_bookmark_remove_property (KzSmartBookmark *bookmark)
{
}

#define MAX_GROUPSTRING 9
gchar *
kz_smart_bookmark_get_smart_uri (KzSmartBookmark *bookmark, const gchar *text)
{
      gchar *smart_uri;
      GList *smart_list, *node;
      KzSmartBookmarkProperty *match = NULL;
      gint n_match = 0;
      EggRegex *egg_regex;
      GError *error = NULL;

      g_return_val_if_fail(KZ_IS_BOOKMARK(bookmark), NULL);

      if (!text) 
            return g_strdup("");

      if (!KZ_IS_SMART_BOOKMARK(bookmark))
      {
            const gchar *link;
            link = kz_bookmark_get_link(KZ_BOOKMARK(bookmark));
            if (link)
                  return g_strdup(link);
            else 
                  return g_strdup(text);
      }

      smart_list = g_object_get_qdata(G_OBJECT(bookmark),
                              smart_list_quark);

      for (node = smart_list; node; node = g_list_next(node))
      {
            gchar *regex;
            KzSmartBookmarkProperty *prop;
            
            prop = node->data;      
            regex = prop->regex;

            egg_regex = egg_regex_new(regex, 0, 0, &error);

            if (error)
            {
                  g_warning("KzBookmark: Regular Expression Error");
                  g_error_free(error);
                  return g_strdup(text);
            }

            n_match = egg_regex_match(egg_regex, text, -1, 0);

            if (n_match > 0)        
            {
                  match = prop;
                  break;
            }
            egg_regex_free(egg_regex);
      }

      if(match)
      {
            gboolean urlencode = match->urlencode;
            gchar *uri = match->uri;
            gchar *encode = match->encode;
            gchar **strings = NULL;
            gchar *url_strings[MAX_GROUPSTRING];
            guint i, n = 0;
            GString *str;

            strings = egg_regex_fetch_all(egg_regex, text);
      
            if (strings)
            {
                  while (strings[n] && n < MAX_GROUPSTRING)
                  {
                        url_strings[n] = ensure_encode_string(strings[n], 
                                         encode,
                                         urlencode);
                        n++;
                  }
            }
            g_strfreev(strings);    

            /* %s is placed whole of the text */
            str = g_string_new_len(uri, strlen(uri));
            if (strstr(uri, "%s"))
            {
                  gchar *url;
                  url = ensure_encode_string(text, encode,
                                       urlencode);
                  g_string_printf(str, uri, url);
                  g_free(url);
            }

            /* \1, \2 ... is replaced matching sub pattern */
            for (i = 0; i < n; i++)
            {
                  gchar *pos;
                  gchar *index;
                  index = g_strdup_printf("\\%d", i);
                  pos = strstr(str->str, index); 
                  while (pos)
                  {
                        gssize p = pos - str->str;
                        str = g_string_erase(str, p, strlen(index));
                        str = g_string_insert(str, p, url_strings[i]); 
                        pos = strstr(str->str, index);
                  }
                  g_free(index);
            }

            smart_uri = g_strndup(str->str, str->len);      
            g_string_free(str, TRUE);

            egg_regex_free(egg_regex);
      }
      else
      {
                /* match nothing so nothing to do... */
            smart_uri = g_strdup(text);
      }

      return smart_uri;
}

void
kz_smart_bookmark_set_smart_list (KzSmartBookmark *bookmark, GList *list)
{
      GList *old_list;
      g_return_if_fail(KZ_IS_SMART_BOOKMARK(bookmark));
      
      old_list = g_object_get_qdata(G_OBJECT(bookmark),
                              smart_list_quark);
      free_smart_list(old_list);

      g_object_set(G_OBJECT(bookmark), "smart-list", list, NULL);
}


const GList *
kz_smart_bookmark_get_smart_list (KzSmartBookmark *bookmark)
{
      const GList *list;

      g_return_val_if_fail(KZ_IS_SMART_BOOKMARK(bookmark), NULL);
      
      list = g_object_get_qdata(G_OBJECT(bookmark),
                          smart_list_quark);

      return list;
}


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