path: root/lib/ephy-dialog.c

/*
 *  Copyright (C) 2000, 2001, 2002 Marco Pesenti Gritti
 *
 *  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.
 */

#include "ephy-dialog.h"
#include "ephy-glade.h"
#include "ephy-state.h"
#include "ephy-gui.h"
#include "eel-gconf-extensions.h"

#include <string.h>
#include <gtk/gtktogglebutton.h>

static void
ephy_dialog_class_init (EphyDialogClass *klass);
static void
ephy_dialog_init (EphyDialog *window);
static void
ephy_dialog_finalize (GObject *object);
static void
ephy_dialog_get_property (GObject *object,
              guint prop_id,
                          GValue *value,
                          GParamSpec *pspec);
static void
ephy_dialog_set_property (GObject *object,
              guint prop_id,
                          const GValue *value,
                          GParamSpec *pspec);

static void
ephy_dialog_set_parent (EphyDialog *dialog,
            GtkWidget *parent);

static void
impl_construct (EphyDialog *dialog,
        const EphyDialogProperty *properties,
        const char *file,
        const char *name);

static void
impl_destruct (EphyDialog *dialog);

static GtkWidget *
impl_get_control (EphyDialog *dialog,
                  int property_id);
static void
impl_get_value (EphyDialog *dialog,
                int property_id,
                GValue *value);
static gint
impl_run (EphyDialog *dialog);
static void
impl_show (EphyDialog *dialog);
void
ephy_dialog_destroy_cb (GtkWidget *widget,
            EphyDialog *dialog);

enum
{
    PROP_0,
    PROP_PARENT_WINDOW,
    PROP_MODAL
};

typedef enum
{
        PT_TOGGLEBUTTON,
        PT_RADIOBUTTON,
        PT_SPINBUTTON,
        PT_COLOR,
        PT_OPTIONMENU,
        PT_ENTRY,
    PT_UNKNOWN
} PrefType;

typedef struct
{
    int id;
    GtkWidget *widget;
    const char *pref;
    int *sg;
    PropertyType type;
    GList *string_enum;
} PropertyInfo;

struct EphyDialogPrivate
{
    GtkWidget *parent;
    GtkWidget *dialog;
    GtkWidget *container;
    PropertyInfo *props;
    gboolean modal;
    char *name;

    int spin_item_id;
    GTimer *spin_timer;
    gboolean initialized;
};

#define SPIN_DELAY 0.20

static GObjectClass *parent_class = NULL;

GType
ephy_dialog_get_type (void)
{
        static GType ephy_dialog_type = 0;

        if (ephy_dialog_type == 0)
        {
                static const GTypeInfo our_info =
                {
                        sizeof (EphyDialogClass),
                        NULL, /* base_init */
                        NULL, /* base_finalize */
                        (GClassInitFunc) ephy_dialog_class_init,
                        NULL,
                        NULL, /* class_data */
                        sizeof (EphyDialog),
                        0, /* n_preallocs */
                        (GInstanceInitFunc) ephy_dialog_init
                };

                ephy_dialog_type = g_type_register_static (G_TYPE_OBJECT,
                                                           "EphyDialog",
                                                           &our_info, 0);
        }

        return ephy_dialog_type;
}

static void
ephy_dialog_class_init (EphyDialogClass *klass)
{
        GObjectClass *object_class = G_OBJECT_CLASS (klass);

        parent_class = g_type_class_peek_parent (klass);

        object_class->finalize = ephy_dialog_finalize;
    object_class->set_property = ephy_dialog_set_property;
    object_class->get_property = ephy_dialog_get_property;

    klass->construct = impl_construct;
    klass->get_control = impl_get_control;
    klass->get_value = impl_get_value;
    klass->run = impl_run;
    klass->show = impl_show;
    klass->destruct = impl_destruct;

    g_object_class_install_property (object_class,
                                         PROP_PARENT_WINDOW,
                                         g_param_spec_object ("ParentWindow",
                                                              "ParentWindow",
                                                              "Parent window",
                                                              GTK_TYPE_WIDGET,
                                                              G_PARAM_READWRITE));

    g_object_class_install_property (object_class,
                                         PROP_MODAL,
                                         g_param_spec_boolean ("Modal",
                                                               "Modal",
                                                               "Modal dialog",
                                                               FALSE,
                                                               G_PARAM_READWRITE));
}

static void
set_config_from_editable (GtkWidget *editable, const char *config_name)
{
    GConfValue *gcvalue = eel_gconf_get_value (config_name);
    GConfValueType value_type;
    char *value;
    gint ivalue;
    gfloat fvalue;

    if (gcvalue == NULL) {
        /* ugly hack around what appears to be a gconf bug
         * it returns a NULL GConfValue for a valid string pref
         * which is "" by default */
        value_type = GCONF_VALUE_STRING;
    } else {
        value_type = gcvalue->type;
        gconf_value_free (gcvalue);
    }

    /* get all the text into a new string */
    value = gtk_editable_get_chars (GTK_EDITABLE(editable), 0, -1);

    switch (value_type) {
    case GCONF_VALUE_STRING:
        eel_gconf_set_string (config_name,
                      value);
        break;
    /* FIXME : handle possible errors in the input for int and float */
    case GCONF_VALUE_INT:
        ivalue = atoi (value);
        eel_gconf_set_integer (config_name, ivalue);
        break;
    case GCONF_VALUE_FLOAT:
        fvalue = strtod (value, (char**)NULL);
        eel_gconf_set_float (config_name, fvalue);
        break;
    default:
        break;
    }

    /* free the allocated strings */
    g_free (value);
}

static void
set_config_from_optionmenu (GtkWidget *optionmenu, const char *config_name, GList *senum)
{
    int index = gtk_option_menu_get_history (GTK_OPTION_MENU (optionmenu));

    if (senum)
    {
        eel_gconf_set_string (config_name, g_list_nth_data (senum, index));
    }
    else
    {
        eel_gconf_set_integer (config_name, index);
    }
}

static void
set_config_from_radiobuttongroup (GtkWidget *radiobutton, const char *config_name, GList *senum)
{
    gint index;

    /* get value from radio button group */
    index = ephy_gui_gtk_radio_button_get (GTK_RADIO_BUTTON (radiobutton));

    if (senum)
    {
        eel_gconf_set_string (config_name, g_list_nth_data (senum, index));
    }
    else
    {
        eel_gconf_set_integer (config_name, index);
    }
}

static void
set_config_from_spin_button (GtkWidget *spinbutton, const char *config_name)
{
    gdouble value;
    gboolean use_int;

    /* read the value as an integer */
    value = gtk_spin_button_get_value (GTK_SPIN_BUTTON(spinbutton));

    use_int = (gtk_spin_button_get_digits (GTK_SPIN_BUTTON(spinbutton)) == 0);

    if (use_int)
    {
        eel_gconf_set_integer (config_name, value);
    }
    else
    {
        eel_gconf_set_float (config_name, value);
    }
}

static void
set_config_from_togglebutton (GtkWidget *togglebutton, const char *config_name)
{
    gboolean value;

    /* read the value */
    value = gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON(togglebutton));

    eel_gconf_set_boolean (config_name, value);
}

static void
set_config_from_color (GtkWidget *colorpicker, const char *config_name)
{
    guint8 r, g, b, a;
    gchar color_string[9];

    /* get color values from color picker */
    gnome_color_picker_get_i8 (GNOME_COLOR_PICKER (colorpicker),
                   &r, &g, &b, &a);

    /* write into string (bounded size) */
    snprintf (color_string, 9, "#%02X%02X%02X", r, g, b);

    /* set the configuration value */
    eel_gconf_set_string (config_name, color_string);
}

static void
set_editable_from_config (GtkWidget *editable, const char *config_name)
{
    GConfValue *gcvalue = eel_gconf_get_value (config_name);
    GConfValueType value_type;
    gchar *value;

    if (gcvalue == NULL)
    {
        /* ugly hack around what appears to be a gconf bug
         * it returns a NULL GConfValue for a valid string pref
         * which is "" by default */
        value_type = GCONF_VALUE_STRING;
    }
    else
    {
        value_type = gcvalue->type;
        gconf_value_free (gcvalue);
    }

    switch (value_type)
    {
    case GCONF_VALUE_STRING:
        value = eel_gconf_get_string (config_name);
        break;
    case GCONF_VALUE_INT:
        value = g_strdup_printf ("%d",eel_gconf_get_integer (config_name));
        break;
    case GCONF_VALUE_FLOAT:
        value = g_strdup_printf ("%.2f",eel_gconf_get_float (config_name));
        break;
    default:
        value = NULL;
    }

    /* set this string value in the widget */
    if (value)
    {
        gtk_entry_set_text(GTK_ENTRY(editable), value);
    }


    /* free the allocated string */
    g_free (value);
}

static void
set_optionmenu_from_config (GtkWidget *optionmenu, const char *config_name, GList *senum)
{
    int index;

    if (senum)
    {
        char *val;
        GList *s;

        val = eel_gconf_get_string (config_name);

        s = g_list_find_custom (senum, val, (GCompareFunc)strcmp);

        index = g_list_position (senum, s);
    }
    else
    {
        index = eel_gconf_get_integer (config_name);
    }

    gtk_option_menu_set_history (GTK_OPTION_MENU (optionmenu), index);
}

static void
set_radiobuttongroup_from_config (GtkWidget *radiobutton, const char *config_name, GList *senum)
{
    int index;

    if (senum)
    {
        char *val;
        GList *s;

        val = eel_gconf_get_string (config_name);

        s = g_list_find_custom (senum, val, (GCompareFunc)strcmp);

        index = g_list_position (senum, s);
    }
    else
    {
        index = eel_gconf_get_integer (config_name);
    }

    /* set it (finds the group for us) */
    ephy_gui_gtk_radio_button_set (GTK_RADIO_BUTTON (radiobutton), index);
}

static void
set_spin_button_from_config (GtkWidget *spinbutton, const char *config_name)
{
    gdouble value;
    gint use_int;

    use_int = (gtk_spin_button_get_digits (GTK_SPIN_BUTTON(spinbutton)) == 0);

    if (use_int)
    {
        /* get the current value from the configuration space */
        value = eel_gconf_get_integer (config_name);
    }
    else
    {
        /* get the current value from the configuration space */
        value = eel_gconf_get_float (config_name);
    }

    /* set this option value in the widget */
    gtk_spin_button_set_value(GTK_SPIN_BUTTON(spinbutton), value);
}

static void
set_togglebutton_from_config (GtkWidget *togglebutton, const char *config_name)
{
    gboolean value;

    /* get the current value from the configuration space */
    value = eel_gconf_get_boolean (config_name);

    /* set this option value in the widget */
    gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (togglebutton), value);
}

static void
set_color_from_config (GtkWidget *colorpicker, const char *config_name)
{
    gchar *color_string;
    guint r, g, b;

    /* get the string from config */
    color_string = eel_gconf_get_string (config_name);

    if (color_string)
    {
        /* parse it and setup the color picker */
        sscanf (color_string, "#%2X%2X%2X", &r, &g, &b);
        gnome_color_picker_set_i8 (GNOME_COLOR_PICKER (colorpicker),
                       r, g, b, 0);
        /* free the string */
        g_free (color_string);
    }
}

static PrefType
get_pref_type_from_widget (GtkWidget *widget)
{
    if (GTK_IS_OPTION_MENU (widget))
    {
        return PT_OPTIONMENU;
    }
    else if (GTK_IS_SPIN_BUTTON (widget))
    {
        return PT_SPINBUTTON;
    }
    else if (GTK_IS_RADIO_BUTTON (widget))
    {
        return PT_RADIOBUTTON;
    }
    else if (GTK_IS_TOGGLE_BUTTON (widget))
    {
        return PT_TOGGLEBUTTON;
    }
    else if (GTK_IS_ENTRY (widget))
    {
        return PT_ENTRY;
    }
    else if (GNOME_IS_COLOR_PICKER (widget))
    {
        return PT_COLOR;
    }

    return PT_UNKNOWN;
}

static int *
set_controls_sensitivity (EphyDialog *dialog,
              int *sg, gboolean s)
{
    GtkWidget *widget;

    while (*sg != SY_END_GROUP)
    {
        widget = ephy_dialog_get_control (dialog,
                            *sg);
        gtk_widget_set_sensitive (widget, s);

        sg++;
    }

    return sg;
}

static void
prefs_set_group_sensitivity (GtkWidget *widget,
                 PrefType type, int *sg)
{
    int group = -1;
    EphyDialog *dialog;
    int i = 0;

    if (sg == NULL) return;

    dialog = EPHY_DIALOG (g_object_get_data
                (G_OBJECT(widget), "dialog"));

    if (GTK_IS_RADIO_BUTTON (widget))
    {
        group = ephy_gui_gtk_radio_button_get
            (GTK_RADIO_BUTTON(widget));
    }
    else if (GTK_IS_TOGGLE_BUTTON (widget))
    {
        group = !gtk_toggle_button_get_active
            (GTK_TOGGLE_BUTTON(widget));
    }
    else
    {
        g_assert (FALSE);
    }

    while (*sg != SY_END)
    {
        if ((*sg == SY_BEGIN_GROUP) ||
            (*sg == SY_BEGIN_GROUP_INVERSE))
        {
            gboolean b;

            b = (i == group);
            if (*sg == SY_BEGIN_GROUP_INVERSE) b = !b;

            sg++;
            sg = set_controls_sensitivity
                (dialog, sg, b);
        }

        i++;
        sg++;
    }
}

static void
prefs_togglebutton_clicked_cb (GtkWidget *widget, PropertyInfo *pi)
{
    if (pi->type == PT_AUTOAPPLY)
    {
        set_config_from_togglebutton (widget, pi->pref);
    }

    prefs_set_group_sensitivity (widget, pi->type, pi->sg);
}

static void
prefs_radiobutton_clicked_cb (GtkWidget *widget, PropertyInfo *pi)
{
    if (!gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON(widget)))
    {
        return;
    }

    if (pi->type == PT_AUTOAPPLY)
    {
        set_config_from_radiobuttongroup (widget, pi->pref, pi->string_enum);
    }

    prefs_set_group_sensitivity (widget, pi->type, pi->sg);
}

static gint
prefs_spinbutton_timeout_cb (EphyDialog *dialog)
{
    PropertyInfo pi = dialog->priv->props[dialog->priv->spin_item_id];

        /* timer still valid? */
        if (dialog->priv->spin_timer == NULL)
        {
                return FALSE;
        }

        /* okay, we're ready to set */
        if (g_timer_elapsed (dialog->priv->spin_timer, NULL) >= SPIN_DELAY)
        {
                /* kill off the timer */
                g_timer_destroy (dialog->priv->spin_timer);
                dialog->priv->spin_timer = NULL;

        /* HACK update the spinbutton here so that the
         * changes made directly in the entry are accepted
         * and set in the pref. Otherwise the old value is used */
        gtk_spin_button_update (GTK_SPIN_BUTTON(pi.widget));

        /* set */
                set_config_from_spin_button (pi.widget, pi.pref);

                /* done now */
                return FALSE;
        }

        /* call me again */
        return TRUE;
}

static void
prefs_spinbutton_changed_cb (GtkWidget *widget, PropertyInfo *pi)
{
    EphyDialog *dialog;

    if (pi->type != PT_AUTOAPPLY) return;

    dialog = EPHY_DIALOG (g_object_get_data
                (G_OBJECT(widget), "dialog"));

    dialog->priv->spin_item_id = pi->id;

    /* destroy any existing timer */
    if (dialog->priv->spin_timer != NULL)
    {
        g_timer_destroy (dialog->priv->spin_timer);
    }

    /* start the new one */
    dialog->priv->spin_timer = g_timer_new();
    g_timer_start (dialog->priv->spin_timer);
    g_timeout_add (50, (GSourceFunc) prefs_spinbutton_timeout_cb,
               dialog);
}

static void
prefs_color_changed_cb (GtkWidget *widget, guint r, guint g,
            guint b, guint a, const PropertyInfo *pi)
{
    if (pi->type == PT_AUTOAPPLY)
    {
        set_config_from_color (widget,  pi->pref);
    }
}

static void
prefs_entry_changed_cb (GtkWidget *widget, PropertyInfo *pi)
{
    if (pi->type == PT_AUTOAPPLY)
    {
        set_config_from_editable (widget,  pi->pref);
    }
}

static void
prefs_optionmenu_selected_cb (GtkWidget *widget, PropertyInfo *pi)
{
    if (pi->type == PT_AUTOAPPLY)
    {
        set_config_from_optionmenu (widget, pi->pref, pi->string_enum);
    }
}

static void
prefs_connect_signals (EphyDialog *dialog)
{
    int i;
    GSList *list;
    PropertyInfo *props = dialog->priv->props;

    for (i = 0; props[i].widget != NULL; i++)
    {
        PrefType type;
        PropertyInfo *info;

        if ((props[i].type != PT_AUTOAPPLY) &&
            (props[i].sg == NULL))
            continue;

        info = &dialog->priv->props[i];
        type = get_pref_type_from_widget
            (dialog->priv->props[i].widget);

        switch (type)
        {
        case PT_TOGGLEBUTTON:
            g_object_set_data (G_OBJECT(info->widget), "dialog", dialog);
            g_signal_connect (G_OBJECT (info->widget), "clicked",
                      G_CALLBACK(prefs_togglebutton_clicked_cb),
                      (gpointer)info);
            break;
        case PT_RADIOBUTTON:
            list = gtk_radio_button_get_group
                (GTK_RADIO_BUTTON(info->widget));
            for (; list != NULL; list = list->next)
            {
                g_object_set_data (G_OBJECT(list->data),
                           "dialog", dialog);
                g_signal_connect
                    (G_OBJECT (list->data), "clicked",
                     G_CALLBACK(prefs_radiobutton_clicked_cb),
                     (gpointer)info);
            }
            break;
        case PT_SPINBUTTON:
            g_object_set_data (G_OBJECT(info->widget), "dialog", dialog);
            g_signal_connect (G_OBJECT (info->widget), "changed",
                      G_CALLBACK(prefs_spinbutton_changed_cb),
                      (gpointer)info);
            break;
        case PT_COLOR:
            g_signal_connect (G_OBJECT (info->widget), "color_set",
                      G_CALLBACK(prefs_color_changed_cb),
                      (gpointer)info);
            break;
        case PT_OPTIONMENU:
            g_signal_connect (G_OBJECT (info->widget),
                      "changed",
                      G_CALLBACK(prefs_optionmenu_selected_cb),
                      (gpointer)info);
            break;
        case PT_ENTRY:
            g_signal_connect (G_OBJECT (info->widget), "changed",
                      G_CALLBACK(prefs_entry_changed_cb),
                      (gpointer)info);
            break;
        case PT_UNKNOWN:
            break;
        }
    }
}

static void
ephy_dialog_init (EphyDialog *dialog)
{
        dialog->priv = g_new0 (EphyDialogPrivate, 1);

    dialog->priv->parent = NULL;
    dialog->priv->dialog = NULL;
    dialog->priv->props = NULL;
    dialog->priv->spin_timer = NULL;
    dialog->priv->name = NULL;
    dialog->priv->initialized = FALSE;
}

static void
prefs_set_sensitivity (PropertyInfo *props)
{
    int i;

    for (i=0 ; props[i].id >= 0; i++)
    {
        if (props[i].sg == NULL) continue;

        g_return_if_fail (props[i].widget != NULL);

        if (GTK_IS_RADIO_BUTTON(props[i].widget) ||
            GTK_IS_TOGGLE_BUTTON(props[i].widget))
        {
            prefs_set_group_sensitivity (props[i].widget,
                             props[i].type,
                             props[i].sg);
        }
    }
}

static void
load_props (PropertyInfo *props)
{
    int i;

    for (i=0 ; props[i].id >= 0; i++)
    {
        if (props[i].pref == NULL) continue;

        g_return_if_fail (props[i].widget != NULL);

        if (GTK_IS_SPIN_BUTTON(props[i].widget))
        {
            set_spin_button_from_config (props[i].widget,
                             props[i].pref);
        }
        else if (GTK_IS_RADIO_BUTTON(props[i].widget))
        {
            set_radiobuttongroup_from_config (props[i].widget,
                                  props[i].pref,
                              props[i].string_enum);
        }
        else if (GTK_IS_TOGGLE_BUTTON(props[i].widget))
        {
             set_togglebutton_from_config (props[i].widget,
                               props[i].pref);
        }
        else if (GTK_IS_EDITABLE(props[i].widget))
        {
            set_editable_from_config (props[i].widget,
                          props[i].pref);
        }
        else if (GTK_IS_OPTION_MENU(props[i].widget))
        {
            set_optionmenu_from_config (props[i].widget,
                            props[i].pref,
                            props[i].string_enum);
        }
        else if (GNOME_IS_COLOR_PICKER(props[i].widget))
        {
            set_color_from_config (props[i].widget,
                           props[i].pref);
        }
    }

}

static void
save_props (PropertyInfo *props)
{
    int i;

    for (i=0 ; props[i].id >= 0; i++)
    {
        if ((props[i].pref == NULL) ||
            (props[i].type != PT_NORMAL)) continue;
        g_return_if_fail (props[i].widget != NULL);

        if (GTK_IS_SPIN_BUTTON(props[i].widget))
        {
            set_config_from_spin_button (props[i].widget,
                             props[i].pref);
        }
        else if (GTK_IS_RADIO_BUTTON(props[i].widget))
        {
            set_config_from_radiobuttongroup (props[i].widget,
                              props[i].pref,
                              props[i].string_enum);
        }
        else if (GTK_IS_TOGGLE_BUTTON(props[i].widget))
        {
             set_config_from_togglebutton (props[i].widget,
                               props[i].pref);
        }
        else if (GTK_IS_EDITABLE(props[i].widget))
        {
            set_config_from_editable (props[i].widget,
                          props[i].pref);
        }
        else if (GTK_IS_OPTION_MENU(props[i].widget))
        {
            set_config_from_optionmenu (props[i].widget,
                            props[i].pref,
                            props[i].string_enum);
        }
        else if (GNOME_IS_COLOR_PICKER(props[i].widget))
        {
            set_config_from_color (props[i].widget,
                           props[i].pref);
        }
    }
}

static void
free_props (PropertyInfo *properties)
{
    int i;

    for (i = 0; properties[i].string_enum != NULL; i++)
    {
        g_list_foreach (properties[i].string_enum, (GFunc)g_free, NULL);
        g_list_free (properties[i].string_enum);
    }
}

static void
ephy_dialog_finalize (GObject *object)
{
        EphyDialog *dialog;

        g_return_if_fail (object != NULL);
        g_return_if_fail (IS_EPHY_DIALOG (object));

        dialog = EPHY_DIALOG (object);

        g_return_if_fail (dialog->priv != NULL);

    if (dialog->priv->dialog)
    {
        ephy_dialog_destruct (dialog);
    }

    free_props (dialog->priv->props);

    g_free (dialog->priv->name);
    g_free (dialog->priv->props);
        g_free (dialog->priv);

        G_OBJECT_CLASS (parent_class)->finalize (object);
}

static void
ephy_dialog_set_property (GObject *object,
                          guint prop_id,
                          const GValue *value,
                          GParamSpec *pspec)
{
        EphyDialog *d = EPHY_DIALOG (object);

        switch (prop_id)
        {
                case PROP_PARENT_WINDOW:
                        ephy_dialog_set_parent (d, g_value_get_object (value));
                        break;
        case PROP_MODAL:
            ephy_dialog_set_modal (d, g_value_get_boolean (value));
            break;
        }
}

static void
ephy_dialog_get_property (GObject *object,
              guint prop_id,
                          GValue *value,
                          GParamSpec *pspec)
{
        EphyDialog *d = EPHY_DIALOG (object);

        switch (prop_id)
        {
                case PROP_PARENT_WINDOW:
                        g_value_set_object (value, d->priv->parent);
                        break;
        case PROP_MODAL:
            g_value_set_boolean (value, d->priv->modal);
        }
}

static void
ephy_dialog_set_parent (EphyDialog *dialog,
              GtkWidget *parent)
{
    g_return_if_fail (dialog->priv->parent == NULL);
        g_return_if_fail (GTK_IS_WINDOW(parent));
    g_return_if_fail (GTK_IS_WINDOW(dialog->priv->dialog));

        dialog->priv->parent = parent;

    gtk_window_set_transient_for (GTK_WINDOW (dialog->priv->dialog),
                                      GTK_WINDOW (parent));
}

EphyDialog *
ephy_dialog_new (void)
{
    return EPHY_DIALOG (g_object_new (EPHY_DIALOG_TYPE, NULL));
}

EphyDialog *
ephy_dialog_new_with_parent (GtkWidget *parent_window)
{
    return EPHY_DIALOG (g_object_new (EPHY_DIALOG_TYPE,
                        "ParentWindow", parent_window,
                        NULL));
}

void
ephy_dialog_add_enum (EphyDialog *dialog,
              int id,
              guint n_items,
              const char **items)
{
    int i = 0;
    GList *l = NULL;

    for (i = 0; i < n_items; i++)
    {
        l = g_list_append (l, g_strdup (items[i]));
    }

    dialog->priv->props[id].string_enum = l;
}

static PropertyInfo *
init_props (const EphyDialogProperty *properties, GladeXML *gxml)
{
    PropertyInfo *props;
    int i;

    for (i=0 ; properties[i].control_name != NULL; i++);

    props = g_new0 (PropertyInfo, i+1);

    for (i=0 ; properties[i].control_name != NULL; i++)
    {
        props[i].id = properties[i].id;
        props[i].widget = glade_xml_get_widget
                    (gxml, properties[i].control_name);
        props[i].pref = properties[i].state_pref;
        props[i].sg = properties[i].sg;
        props[i].type = properties[i].type;
        props[i].string_enum = NULL;
    }

    props[i].id = -1;
    props[i].widget = NULL;
    props[i].pref = NULL;
    props[i].sg = NULL;
    props[i].type = 0;
    props[i].string_enum = NULL;

    return props;
}

static void
dialog_destruction_notify (EphyDialog *dialog,
                           GObject *where_the_object_was)
{
    dialog->priv->dialog = NULL;
    ephy_dialog_destruct (dialog);
    g_object_unref (dialog);
}

static void
dialog_destroy_cb (GtkWidget *widget, EphyDialog *dialog)
{
    if (dialog->priv->props &&
        dialog->priv->dialog)
    {
        save_props (dialog->priv->props);
    }
}

static void
impl_construct (EphyDialog *dialog,
        const EphyDialogProperty *properties,
        const char *file,
        const char *name)
{
    GladeXML *gxml;

    gxml = ephy_glade_widget_new
        (file, name, &(dialog->priv->dialog), dialog);

    if (dialog->priv->name == NULL)
    {
        dialog->priv->name = g_strdup (name);
    }

    if (properties)
    {
        dialog->priv->props = init_props (properties, gxml);
    }

    g_signal_connect (dialog->priv->dialog,
              "destroy",
              G_CALLBACK(dialog_destroy_cb),
              dialog);

    g_object_unref (gxml);

    g_object_weak_ref (G_OBJECT(dialog->priv->dialog),
               (GWeakNotify)dialog_destruction_notify,
               dialog);
}

static void
impl_destruct (EphyDialog *dialog)
{
    if (dialog->priv->dialog)
    {
        g_object_weak_unref (G_OBJECT(dialog->priv->dialog),
                     (GWeakNotify)dialog_destruction_notify,
                     dialog);
        gtk_widget_destroy (dialog->priv->dialog);
        dialog->priv->dialog = NULL;
    }
}

static GtkWidget *
impl_get_control (EphyDialog *dialog,
                  int property_id)
{
    return dialog->priv->props[property_id].widget;
}

static void
impl_get_value (EphyDialog *dialog,
                int property_id,
                GValue *value)
{
    GtkWidget *widget = ephy_dialog_get_control (dialog,
                               property_id);

    if (GTK_IS_SPIN_BUTTON (widget))
    {
        float val;
        g_value_init (value, G_TYPE_FLOAT);
        val = gtk_spin_button_get_value (GTK_SPIN_BUTTON(widget));
        g_value_set_float (value, val);
    }
    else if (GTK_IS_RADIO_BUTTON (widget))
    {
        int val;
        g_value_init (value, G_TYPE_INT);
        val = ephy_gui_gtk_radio_button_get (GTK_RADIO_BUTTON(widget));
        g_value_set_int (value, val);
    }
    else if (GTK_IS_TOGGLE_BUTTON (widget))
    {
        g_value_init (value, G_TYPE_BOOLEAN);
        g_value_set_boolean (value, gtk_toggle_button_get_active
                                     (GTK_TOGGLE_BUTTON(widget)));
    }
    else if (GTK_IS_EDITABLE (widget))
    {
        gchar *text = gtk_editable_get_chars (GTK_EDITABLE (widget), 0, -1);
        g_value_init (value, G_TYPE_STRING);
        g_value_set_string (value, text);
        g_free (text);
    }
    else if (GTK_IS_OPTION_MENU (widget))
    {
        int val;
        g_value_init (value, G_TYPE_INT);
        val = gtk_option_menu_get_history (GTK_OPTION_MENU(widget));
        g_value_set_int (value, val);
    }
}

static void
setup_default_size (EphyDialog *dialog)
{
    ephy_state_add_window (dialog->priv->dialog,
                   dialog->priv->name, -1, -1,
                   EPHY_STATE_WINDOW_SAVE_SIZE);
}

static gint
impl_run (EphyDialog *dialog)
{
    setup_default_size (dialog);

    return gtk_dialog_run (GTK_DIALOG(dialog->priv->dialog));
}

static void
impl_show (EphyDialog *dialog)
{
    if (dialog->priv->props && !dialog->priv->initialized)
    {
        load_props (dialog->priv->props);
        prefs_connect_signals (dialog);
        prefs_set_sensitivity (dialog->priv->props);
        dialog->priv->initialized = TRUE;
    }

    setup_default_size (dialog);

    if (dialog->priv->parent)
    {
        /* make the dialog transient again, because it seems to get
         * forgotten after gtk_widget_hide
         */
        gtk_window_set_transient_for (GTK_WINDOW (dialog->priv->dialog),
                          GTK_WINDOW (dialog->priv->parent));
    }
    gtk_window_present (GTK_WINDOW(dialog->priv->dialog));
}

void
ephy_dialog_set_modal (EphyDialog *dialog,
               gboolean is_modal)
{
    dialog->priv->modal = is_modal;

    gtk_window_set_modal (GTK_WINDOW(dialog->priv->dialog),
                  is_modal);
}

void
ephy_dialog_construct (EphyDialog *dialog,
             const EphyDialogProperty *properties,
             const char *file,
             const char *name)
{
    EphyDialogClass *klass = EPHY_DIALOG_GET_CLASS (dialog);
        return klass->construct (dialog, properties, file, name);
}

void
ephy_dialog_destruct (EphyDialog *dialog)
{
    EphyDialogClass *klass = EPHY_DIALOG_GET_CLASS (dialog);
        klass->destruct (dialog);
}

gint
ephy_dialog_run (EphyDialog *dialog)
{
    EphyDialogClass *klass = EPHY_DIALOG_GET_CLASS (dialog);
        return klass->run (dialog);
}

void
ephy_dialog_show (EphyDialog *dialog)
{
    EphyDialogClass *klass = EPHY_DIALOG_GET_CLASS (dialog);
        klass->show (dialog);
}

GtkWidget *
ephy_dialog_get_control (EphyDialog *dialog,
             int property_id)
{
    EphyDialogClass *klass = EPHY_DIALOG_GET_CLASS (dialog);
        return klass->get_control (dialog, property_id);
}

void
ephy_dialog_get_value (EphyDialog *dialog,
               int property_id,
               GValue *value)
{
    EphyDialogClass *klass = EPHY_DIALOG_GET_CLASS (dialog);
        return klass->get_value (dialog, property_id, value);
}