#include "e.h"

static void *_create_data(E_Config_Dialog *cfd);
static void _fill_data(E_Config_Dialog_Data *cfdata);
static void _free_data(E_Config_Dialog *cfd, E_Config_Dialog_Data *cfdata);
static int _basic_apply_data(E_Config_Dialog *cfd, E_Config_Dialog_Data *cfdata);
static Evas_Object *_basic_create_widgets(E_Config_Dialog *cfd, Evas *evas, E_Config_Dialog_Data *cfdata);
static int _basic_check_changed(E_Config_Dialog *cfd, E_Config_Dialog_Data *cfdata);
static void _cb_shaped_change(void *data, Evas_Object *obj);
static void _cb_confirm_yes(void *data);
static void _cb_confirm_no(void *data);

struct _E_Config_Dialog_Data
{
   E_Config_Dialog *cfd;

   int use_shaped_win;
   Evas_Object *o_shaped;
};

E_Config_Dialog *
e_int_config_engine(E_Container *con, const char *params __UNUSED__)
{
   E_Config_Dialog *cfd;
   E_Config_Dialog_View *v;

   if (e_config_dialog_find("E", "advanced/engine")) return NULL;

   v = E_NEW(E_Config_Dialog_View, 1);
   if (!v) return NULL;
   v->create_cfdata = _create_data;
   v->free_cfdata = _free_data;
   v->basic.apply_cfdata = _basic_apply_data;
   v->basic.create_widgets = _basic_create_widgets;
   v->basic.check_changed = _basic_check_changed;

   cfd = e_config_dialog_new(con, _("Engine Settings"), "E", "advanced/engine",
			     "preferences-engine", 0, v, NULL);
   return cfd;
}

static void *
_create_data(E_Config_Dialog *cfd)
{
   E_Config_Dialog_Data *cfdata;

   cfdata = E_NEW(E_Config_Dialog_Data, 1);
   _fill_data(cfdata);
   cfdata->cfd = cfd;
   return cfdata;
}

static void
_fill_data(E_Config_Dialog_Data *cfdata)
{
   cfdata->use_shaped_win = e_config->use_shaped_win;
}

static void
_free_data(E_Config_Dialog *cfd __UNUSED__, E_Config_Dialog_Data *cfdata)
{
   E_FREE(cfdata);
}

static int
_basic_apply_data(E_Config_Dialog *cfd __UNUSED__, E_Config_Dialog_Data *cfdata)
{
   e_config->use_shaped_win = cfdata->use_shaped_win;
   e_config_save_queue();
   return 1;
}

static int
_basic_check_changed(E_Config_Dialog *cfd __UNUSED__, E_Config_Dialog_Data *cfdata)
{
   return !(cfdata->use_shaped_win == e_config->use_shaped_win);
}

static Evas_Object *
_basic_create_widgets(E_Config_Dialog *cfd __UNUSED__, Evas *evas, E_Config_Dialog_Data *cfdata)
{
   Evas_Object *o, *ob, *of;

   o = e_widget_list_add(evas, 0, 0);

   of = e_widget_framelist_add(evas, _("General Settings"), 0);
   ob = e_widget_check_add(evas, _("Use shaped windows instead of ARGB"),
                           &(cfdata->use_shaped_win));
   cfdata->o_shaped = ob;
   e_widget_on_change_hook_set(ob, _cb_shaped_change, cfdata);
   e_widget_framelist_object_append(of, ob);
   e_widget_list_object_append(o, of, 1, 0, 0.5);

   return o;
}

static void
_cb_shaped_change(void *data, Evas_Object *obj __UNUSED__)
{
   E_Config_Dialog_Data *cfdata = NULL;

   if (!(cfdata = data)) return;
   if (cfdata->use_shaped_win)
     {
        if (ecore_x_screen_is_composited(0))
          {
             /* pop dialog */
             e_confirm_dialog_show(_("Use shaped windows instead of ARGB"),
                                   "preferences-engine",
                                   _("You have chosen to use shaped windows<br>"
                                     "but your current screen is composited."
                                     "<br><br>"
                                     "Are you really sure you wish to use<br>"
                                     "shaped windows?"),
                                   NULL, NULL, _cb_confirm_yes,
                                   _cb_confirm_no, cfdata, cfdata, NULL, NULL);
          }
     }
}

static void
_cb_confirm_yes(void *data)
{
   E_Config_Dialog_Data *cfdata = NULL;

   if (!(cfdata = data)) return;
   cfdata->use_shaped_win = 1;

   e_config_dialog_changed_set(cfdata->cfd, _basic_check_changed(cfdata->cfd, cfdata));
}

static void
_cb_confirm_no(void *data)
{
   E_Config_Dialog_Data *cfdata = NULL;

   if (!(cfdata = data)) return;
   cfdata->use_shaped_win = 0;
   e_widget_check_checked_set(cfdata->o_shaped, 0);

   e_config_dialog_changed_set(cfdata->cfd, _basic_check_changed(cfdata->cfd, cfdata));
}