path: root/lib/toolbar/ephy-tbi-navigation-history.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 <libgnome/gnome-i18n.h>
#include <bonobo/bonobo-ui-toolbar-button-item.h>
#include <bonobo/bonobo-property-bag.h>
#include <gtk/gtktogglebutton.h>
#include <gtk/gtkstock.h>
#include <string.h>

#include "ephy-tbi-navigation-history.h"
#include "ephy-gobject-misc.h"
#include "ephy-marshal.h"
#include "ephy-bonobo-extensions.h"

#define NOT_IMPLEMENTED g_warning ("not implemented: " G_STRLOC);
//#define DEBUG_MSG(x) g_print x
#define DEBUG_MSG(x)

/**
 * Private data
 */
struct _EphyTbiNavigationHistoryPrivate
{
    GtkWidget *widget;

    EphyTbiNavigationHistoryDirection direction;
};

enum
{
        TOOLBAR_ITEM_STYLE_PROP,
        TOOLBAR_ITEM_ORIENTATION_PROP,
    TOOLBAR_ITEM_PRIORITY_PROP
};

/**
 * Private functions, only availble from this file
 */
static void     ephy_tbi_navigation_history_class_init      (EphyTbiNavigationHistoryClass *klass);
static void     ephy_tbi_navigation_history_init        (EphyTbiNavigationHistory *tb);
static void     ephy_tbi_navigation_history_finalize_impl   (GObject *o);
static GtkWidget *  ephy_tbi_navigation_history_get_widget_impl (EphyTbItem *i);
static GdkPixbuf *  ephy_tbi_navigation_history_get_icon_impl   (EphyTbItem *i);
static gchar *      ephy_tbi_navigation_history_get_name_human_impl (EphyTbItem *i);
static gchar *      ephy_tbi_navigation_history_to_string_impl  (EphyTbItem *i);
static gboolean     ephy_tbi_navigation_history_is_unique_impl  (EphyTbItem *i);
static EphyTbItem * ephy_tbi_navigation_history_clone_impl      (EphyTbItem *i);
static void     ephy_tbi_navigation_history_parse_properties_impl (EphyTbItem *i, const gchar *props);
static void     ephy_tbi_navigation_history_add_to_bonobo_tb_impl (EphyTbItem *i,
                                      BonoboUIComponent *ui,
                                      const char *container_path,
                                      guint index);

static gpointer ephy_tb_item_class;

/**
 * TbiNavigationHistory object
 */

MAKE_GET_TYPE (ephy_tbi_navigation_history, "EphyTbiNavigationHistory", EphyTbiNavigationHistory,
           ephy_tbi_navigation_history_class_init,
           ephy_tbi_navigation_history_init, EPHY_TYPE_TB_ITEM);

static void
ephy_tbi_navigation_history_class_init (EphyTbiNavigationHistoryClass *klass)
{
    G_OBJECT_CLASS (klass)->finalize = ephy_tbi_navigation_history_finalize_impl;

    EPHY_TB_ITEM_CLASS (klass)->get_widget = ephy_tbi_navigation_history_get_widget_impl;
    EPHY_TB_ITEM_CLASS (klass)->get_icon = ephy_tbi_navigation_history_get_icon_impl;
    EPHY_TB_ITEM_CLASS (klass)->get_name_human = ephy_tbi_navigation_history_get_name_human_impl;
    EPHY_TB_ITEM_CLASS (klass)->to_string = ephy_tbi_navigation_history_to_string_impl;
    EPHY_TB_ITEM_CLASS (klass)->is_unique = ephy_tbi_navigation_history_is_unique_impl;
    EPHY_TB_ITEM_CLASS (klass)->clone = ephy_tbi_navigation_history_clone_impl;
    EPHY_TB_ITEM_CLASS (klass)->parse_properties = ephy_tbi_navigation_history_parse_properties_impl;
    EPHY_TB_ITEM_CLASS (klass)->add_to_bonobo_tb = ephy_tbi_navigation_history_add_to_bonobo_tb_impl;

    ephy_tb_item_class = g_type_class_peek_parent (klass);
}

static void
ephy_tbi_navigation_history_init (EphyTbiNavigationHistory *tb)
{
    EphyTbiNavigationHistoryPrivate *p = g_new0 (EphyTbiNavigationHistoryPrivate, 1);
    tb->priv = p;

    p->direction = EPHY_TBI_NAVIGATION_HISTORY_BACK;
}

EphyTbiNavigationHistory *
ephy_tbi_navigation_history_new (void)
{
    EphyTbiNavigationHistory *ret = g_object_new (EPHY_TYPE_TBI_NAVIGATION_HISTORY, NULL);
    return ret;
}

static void
ephy_tbi_navigation_history_finalize_impl (GObject *o)
{
    EphyTbiNavigationHistory *it = EPHY_TBI_NAVIGATION_HISTORY (o);
    EphyTbiNavigationHistoryPrivate *p = it->priv;

    if (p->widget)
    {
        g_object_unref (p->widget);
    }

    g_free (p);

    DEBUG_MSG (("EphyTbiNavigationHistory finalized\n"));

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

static GtkWidget *
ephy_tbi_navigation_history_get_widget_impl (EphyTbItem *i)
{
    EphyTbiNavigationHistory *iz = EPHY_TBI_NAVIGATION_HISTORY (i);
    EphyTbiNavigationHistoryPrivate *p = iz->priv;

    DEBUG_MSG (("in ephy_tbi_navigation_history_get_widget_impl\n"));
    if (!p->widget)
    {
        DEBUG_MSG (("in ephy_tbi_navigation_history_get_widget_impl, really\n"));

        p->widget = gtk_toggle_button_new ();
        gtk_button_set_relief (GTK_BUTTON (p->widget), GTK_RELIEF_NONE);

        gtk_container_add (GTK_CONTAINER (p->widget),
                   gtk_arrow_new (GTK_ARROW_DOWN, GTK_SHADOW_OUT));

        g_object_ref (p->widget);
        gtk_object_sink (GTK_OBJECT (p->widget));
    }

    return p->widget;
}

static GdkPixbuf *
ephy_tbi_navigation_history_get_icon_impl (EphyTbItem *i)
{
        return NULL;
}

static gchar *
ephy_tbi_navigation_history_get_name_human_impl (EphyTbItem *i)
{
    EphyTbiNavigationHistoryPrivate *p = EPHY_TBI_NAVIGATION_HISTORY (i)->priv;
    const gchar *ret;

    switch (p->direction)
    {
    case EPHY_TBI_NAVIGATION_HISTORY_BACK:
        ret = _("Back History");
        break;
    case EPHY_TBI_NAVIGATION_HISTORY_FORWARD:
        ret = _("Forward History");
        break;
    case EPHY_TBI_NAVIGATION_HISTORY_UP:
        ret = _("Up Several Levels");
        break;
    default:
        g_assert_not_reached ();
        ret = "unknown";
    }

    return g_strdup (ret);
}

static gchar *
ephy_tbi_navigation_history_to_string_impl (EphyTbItem *i)
{
    EphyTbiNavigationHistoryPrivate *p = EPHY_TBI_NAVIGATION_HISTORY (i)->priv;

    /* if it had any properties, the string should include them */
    const char *sdir;

    switch (p->direction)
    {
    case EPHY_TBI_NAVIGATION_HISTORY_BACK:
        sdir = "back";
        break;
    case EPHY_TBI_NAVIGATION_HISTORY_FORWARD:
        sdir = "forward";
        break;
    case EPHY_TBI_NAVIGATION_HISTORY_UP:
        sdir = "up";
        break;
    default:
        g_assert_not_reached ();
        sdir = "unknown";
    }

    return g_strdup_printf ("%s=navigation_history(direction=%s)", i->id, sdir);
}

static gboolean
ephy_tbi_navigation_history_is_unique_impl (EphyTbItem *i)
{
    return TRUE;
}

static EphyTbItem *
ephy_tbi_navigation_history_clone_impl (EphyTbItem *i)
{
    EphyTbiNavigationHistoryPrivate *p = EPHY_TBI_NAVIGATION_HISTORY (i)->priv;
    EphyTbItem *ret = EPHY_TB_ITEM (ephy_tbi_navigation_history_new ());

    ephy_tb_item_set_id (ret, i->id);

    /* should copy properties too, if any */
    ephy_tbi_navigation_history_set_direction (EPHY_TBI_NAVIGATION_HISTORY (ret), p->direction);

    return ret;
}

static void
ephy_tbi_navigation_history_property_set_cb (BonoboPropertyBag *bag,
                         const BonoboArg   *arg,
                         guint              arg_id,
                         CORBA_Environment *ev,
                         gpointer           user_data)
{
    BonoboControl *control;
    BonoboUIToolbarItem *item;
    GtkOrientation orientation;
    BonoboUIToolbarItemStyle style;

    control = BONOBO_CONTROL (user_data);
    item = BONOBO_UI_TOOLBAR_ITEM (bonobo_control_get_widget (control));

    switch (arg_id) {
    case TOOLBAR_ITEM_ORIENTATION_PROP:
        orientation = BONOBO_ARG_GET_INT (arg);
        bonobo_ui_toolbar_item_set_orientation (item, orientation);

        if (GTK_WIDGET (item)->parent) {
            gtk_widget_queue_resize (GTK_WIDGET (item)->parent);
        }
        break;
    case TOOLBAR_ITEM_STYLE_PROP:
        style = BONOBO_ARG_GET_INT (arg);
        bonobo_ui_toolbar_item_set_style (item, style);
        break;
    }
}

static void
ephy_tbi_navigation_history_add_to_bonobo_tb_impl (EphyTbItem *i, BonoboUIComponent *ui,
                           const char *container_path, guint index)
{
    BonoboPropertyBag *pb;
    BonoboControl *wrapper;
    BonoboUIToolbarItem *item;
    GtkWidget *button;

    DEBUG_MSG (("in ephy_tbi_navigation_history_add_to_bonobo_tb_impl\n"));

    item = BONOBO_UI_TOOLBAR_ITEM (bonobo_ui_toolbar_item_new ());

    button = ephy_tb_item_get_widget (i);
    gtk_container_add (GTK_CONTAINER (item), button);
    gtk_widget_show_all (GTK_WIDGET (item));

    wrapper = ephy_bonobo_add_numbered_control (ui, GTK_WIDGET (item), index, container_path);

    pb = bonobo_property_bag_new
        (NULL, ephy_tbi_navigation_history_property_set_cb, wrapper);
    bonobo_property_bag_add (pb, "style",
                 TOOLBAR_ITEM_STYLE_PROP,
                 BONOBO_ARG_INT, NULL, NULL,
                 Bonobo_PROPERTY_WRITEABLE);
    bonobo_property_bag_add (pb, "orientation",
                 TOOLBAR_ITEM_ORIENTATION_PROP,
                 BONOBO_ARG_INT, NULL, NULL,
                 Bonobo_PROPERTY_WRITEABLE);
    bonobo_control_set_properties (wrapper, BONOBO_OBJREF (pb), NULL);
    bonobo_object_unref (pb);
}

static void
ephy_tbi_navigation_history_parse_properties_impl (EphyTbItem *it, const gchar *props)
{
    EphyTbiNavigationHistory *a = EPHY_TBI_NAVIGATION_HISTORY (it);

    /* yes, this is quite hacky, but works */

    /* we have aproperty, the direction */
    const gchar *direc_prop;

    direc_prop = strstr (props, "direction=");
    if (direc_prop)
    {
        direc_prop += strlen ("direction=");
        if (!strncmp (direc_prop, "back", 4))
        {
            ephy_tbi_navigation_history_set_direction (a, EPHY_TBI_NAVIGATION_HISTORY_BACK);
        }
        else if (!strncmp (direc_prop, "forward", 4))
        {
            ephy_tbi_navigation_history_set_direction (a, EPHY_TBI_NAVIGATION_HISTORY_FORWARD);
        }
        else if (!strncmp (direc_prop, "up", 2))
        {
            ephy_tbi_navigation_history_set_direction (a, EPHY_TBI_NAVIGATION_HISTORY_UP);
        }
    }
}

void
ephy_tbi_navigation_history_set_direction (EphyTbiNavigationHistory *a, EphyTbiNavigationHistoryDirection d)
{
    EphyTbiNavigationHistoryPrivate *p = a->priv;

    g_return_if_fail (d == EPHY_TBI_NAVIGATION_HISTORY_UP
              || d == EPHY_TBI_NAVIGATION_HISTORY_BACK
              || d == EPHY_TBI_NAVIGATION_HISTORY_FORWARD);

    p->direction = d;

}