path: root/src/ephy-encoding-menu.c

/*
 *  Copyright (C) 2002  Ricardo Fernández Pascual
 *
 *  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.
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include "ephy-encoding-menu.h"
#include "ephy-string.h"
#include "egg-menu-merge.h"
#include "ephy-shell.h"
#include "ephy-debug.h"

#include <bonobo/bonobo-i18n.h>

#include <string.h>

/**
 * Private data
 */
struct _EphyEncodingMenuPrivate
{
    EphyWindow *window;
    EggActionGroup *action_group;
};

/**
 * Private functions, only availble from this file
 */
static void ephy_encoding_menu_class_init     (EphyEncodingMenuClass *klass);
static void ephy_encoding_menu_init   (EphyEncodingMenu *wrhm);
static void ephy_encoding_menu_finalize_impl (GObject *o);
static void ephy_encoding_menu_rebuild    (EphyEncodingMenu *wrhm);
static void     ephy_encoding_menu_set_property  (GObject *object,
                           guint prop_id,
                           const GValue *value,
                           GParamSpec *pspec);
static void ephy_encoding_menu_get_property  (GObject *object,
                           guint prop_id,
                           GValue *value,
                           GParamSpec *pspec);

enum
{
    PROP_0,
    PROP_EPHY_WINDOW
};

static gpointer g_object_class;

GType
ephy_encoding_menu_get_type (void)
{
    static GType ephy_encoding_menu_type = 0;

    if (ephy_encoding_menu_type == 0)
    {
        static const GTypeInfo our_info =
        {
            sizeof (EphyEncodingMenuClass),
            NULL,
            NULL,
            (GClassInitFunc) ephy_encoding_menu_class_init,
            NULL,
            NULL,
            sizeof (EphyEncodingMenu),
            0,
            (GInstanceInitFunc) ephy_encoding_menu_init
        };

        ephy_encoding_menu_type = g_type_register_static (G_TYPE_OBJECT,
                                      "EphyEncodingMenu",
                                      &our_info, 0);
    }

    return ephy_encoding_menu_type;
}
static void
ephy_encoding_menu_class_init (EphyEncodingMenuClass *klass)
{
    GObjectClass *object_class = G_OBJECT_CLASS (klass);

    G_OBJECT_CLASS (klass)->finalize = ephy_encoding_menu_finalize_impl;
    g_object_class = g_type_class_peek_parent (klass);

    object_class->set_property = ephy_encoding_menu_set_property;
    object_class->get_property = ephy_encoding_menu_get_property;

    g_object_class_install_property (object_class,
                                         PROP_EPHY_WINDOW,
                                         g_param_spec_object ("EphyWindow",
                                                              "EphyWindow",
                                                              "Parent window",
                                                              EPHY_WINDOW_TYPE,
                                                              G_PARAM_READWRITE));
}

static void
ephy_encoding_menu_init (EphyEncodingMenu *wrhm)
{
    EphyEncodingMenuPrivate *p = g_new0 (EphyEncodingMenuPrivate, 1);
    wrhm->priv = p;

    wrhm->priv->action_group = NULL;
}

static void
ephy_encoding_menu_finalize_impl (GObject *o)
{
    EphyEncodingMenu *wrhm = EPHY_ENCODING_MENU (o);
    EphyEncodingMenuPrivate *p = wrhm->priv;

    if (p->action_group != NULL)
    {
        egg_menu_merge_remove_action_group
            (EGG_MENU_MERGE (p->window->ui_merge),
             p->action_group);
        g_object_unref (p->action_group);
    }

    g_free (p);

    G_OBJECT_CLASS (g_object_class)->finalize (o);
}

static void
ephy_encoding_menu_set_property (GObject *object,
                  guint prop_id,
                  const GValue *value,
                  GParamSpec *pspec)
{
        EphyEncodingMenu *m = EPHY_ENCODING_MENU (object);

        switch (prop_id)
        {
                case PROP_EPHY_WINDOW:
                        m->priv->window = g_value_get_object (value);
            ephy_encoding_menu_rebuild (m);
                        break;
        }
}

static void
ephy_encoding_menu_get_property (GObject *object,
                                  guint prop_id,
                                  GValue *value,
                                  GParamSpec *pspec)
{
        EphyEncodingMenu *m = EPHY_ENCODING_MENU (object);

        switch (prop_id)
        {
                case PROP_EPHY_WINDOW:
                        g_value_set_object (value, m->priv->window);
                        break;
        }
}

EphyEncodingMenu *
ephy_encoding_menu_new (EphyWindow *window)
{
    EphyEncodingMenu *ret = g_object_new (EPHY_TYPE_ENCODING_MENU,
                           "EphyWindow", window,
                           NULL);
    return ret;
}

static void
ephy_encoding_menu_verb_cb (EggAction *action,
                EphyEncodingMenu *menu)
{
    EphyWindow *window;
    EphyEmbed *embed;
    gchar *encoding;

    window = menu->priv->window;

    embed = ephy_window_get_active_embed (window);
    g_return_if_fail (embed != NULL);

    if (strncmp (action->name, "Encoding", 8) == 0)
    {
        encoding = action->name + 8;

        LOG ("Switching to encoding %s", encoding)

        ephy_embed_set_encoding (embed, encoding);
    }
}

static void
build_group (EggActionGroup *action_group,
         GString *xml_string,
         const LanguageGroupInfo *info)
{
    gchar *tmp;
    gchar *verb;
    EggAction *action;

    verb = g_strdup_printf ("EncodingGroup%d", info->group);

    action = g_object_new (EGG_TYPE_ACTION,
                   "name", verb,
                   "label", info->title,
                   NULL);
    egg_action_group_add_action (action_group, action);
    g_object_unref (action);

    tmp = g_strdup_printf ("<submenu name=\"%sItem\" verb=\"%s\">\n",
                   verb, verb);
    xml_string = g_string_append (xml_string, tmp);
    g_free (tmp);
    g_free (verb);
}

static void
build_encoding (EphyEncodingMenu *menu,
        EggActionGroup *action_group,
        GString *xml_string,
        const EncodingInfo *info)
{
    char *tmp;
    char *verb;
    EggAction *action;

    verb = g_strdup_printf ("Encoding%s", info->encoding);
    action = g_object_new (EGG_TYPE_ACTION,
                   "name", verb,
                   "label", info->title,
                   NULL);
    g_signal_connect (action, "activate",
              G_CALLBACK (ephy_encoding_menu_verb_cb),
              menu);

    egg_action_group_add_action (action_group, action);
    g_object_unref (action);

    tmp = g_strdup_printf ("<menuitem name=\"%sItem\" verb=\"%s\"/>\n",
                   verb, verb);
    xml_string = g_string_append (xml_string, tmp);

    g_free (tmp);
    g_free (verb);
}

static void
ephy_encoding_menu_rebuild (EphyEncodingMenu *wrhm)
{
    EphyEmbedSingle *single;
    EphyEncodingMenuPrivate *p = wrhm->priv;
    EggMenuMerge *merge = EGG_MENU_MERGE (p->window->ui_merge);
    GString *xml;
    GList *groups, *lg, *encodings, *enc;

    p->action_group = NULL;

    LOG ("Rebuilding encoding menu")

    single = ephy_embed_shell_get_embed_single (EPHY_EMBED_SHELL (ephy_shell));
    g_return_if_fail (single != NULL);

    ephy_embed_single_get_language_groups (single, &groups);

    xml = g_string_new (NULL);
    g_string_append (xml, "<Root><menu><submenu name=\"ViewMenu\">"
                  "<placeholder name=\"ViewEncodingsPlaceholder\">"
                  "<submenu name=\"ViewEncodingMenu\" verb=\"ViewEncoding\">");

    p->action_group = egg_action_group_new ("EncodingActions");
    egg_menu_merge_insert_action_group (merge, p->action_group, 0);

    for (lg = groups; lg != NULL; lg = lg->next)
        {
        const LanguageGroupInfo *lang_info = (LanguageGroupInfo *) lg->data;

        build_group (p->action_group, xml, lang_info);

        ephy_embed_single_get_encodings (single, lang_info->group,
                        FALSE, &encodings);

        for (enc = encodings; enc != NULL; enc = enc->next)
                {
            const EncodingInfo *info = (EncodingInfo *) enc->data;

            build_encoding (wrhm, p->action_group, xml, info);
        }

        g_list_foreach (encodings, (GFunc) encoding_info_free, NULL);
        g_list_free (encodings);
        
        g_string_append (xml, "</submenu>");
    }

    g_list_foreach (groups, (GFunc) language_group_info_free, NULL);
    g_list_free (groups);

    g_string_append (xml, "</submenu></placeholder></submenu></menu></Root>");

    egg_menu_merge_add_ui_from_string (merge, xml->str, -1, NULL);

    g_string_free (xml, TRUE);
}