enlightenment/src/modules/pager_plain/e_mod_main.c

#include "e.h"
#include "e_mod_main.h"

/* gadcon requirements */
static E_Gadcon_Client *_gc_init(E_Gadcon *gc, const char *name, const char *id, const char *style);
static void             _gc_shutdown(E_Gadcon_Client *gcc);
static void             _gc_orient(E_Gadcon_Client *gcc, E_Gadcon_Orient orient EINA_UNUSED);
static const char      *_gc_label(const E_Gadcon_Client_Class *client_class EINA_UNUSED);
static Evas_Object     *_gc_icon(const E_Gadcon_Client_Class *client_class EINA_UNUSED, Evas *evas);
static const char      *_gc_id_new(const E_Gadcon_Client_Class *client_class EINA_UNUSED);

/* and actually define the gadcon class that this module provides (just 1) */
static const E_Gadcon_Client_Class _gadcon_class =
{
   GADCON_CLIENT_CLASS_VERSION,
   "pager",
   {
      _gc_init, _gc_shutdown, _gc_orient, _gc_label, _gc_icon, _gc_id_new, NULL,
      e_gadcon_site_is_not_toolbar
   },
   E_GADCON_CLIENT_STYLE_INSET
};

/* actual module specifics */
typedef struct _Instance    Instance;
typedef struct _Pager       Pager;
typedef struct _Pager_Desk  Pager_Desk;
typedef struct _Pager_Win   Pager_Win;
typedef struct _Pager_Popup Pager_Popup;

struct _Instance
{
   E_Gadcon_Client *gcc;
   Evas_Object     *o_pager; /* table */
   Pager           *pager;
};

struct _Pager
{
   Instance       *inst;
   E_Drop_Handler *drop_handler;
   Pager_Popup    *popup;
   Evas_Object    *o_table;
   E_Zone         *zone;
   int             xnum, ynum;
   Eina_List      *desks;
   Pager_Desk     *active_pd;
   unsigned char   dragging : 1;
   unsigned char   just_dragged : 1;
   Evas_Coord      dnd_x, dnd_y;
   Pager_Desk     *active_drop_pd;
   Eina_Bool invert : 1;
};

struct _Pager_Desk
{
   Pager       *pager;
   E_Desk      *desk;
   Eina_List   *wins;
   Evas_Object *o_desk;
   Evas_Object *o_layout;
   Evas_Object *o_bg;
   int          xpos, ypos, urgent;
   int          current : 1;
   struct
   {
      Pager        *from_pager;
      unsigned char in_pager : 1;
      unsigned char start : 1;
      int           x, y, dx, dy, button;
   } drag;
};

struct _Pager_Win
{
   E_Client     *client;
   Pager_Desk   *desk;
   Evas_Object  *o_window;
   Evas_Object  *o_icon;
   unsigned char skip_winlist : 1;
   struct
   {
      Pager        *from_pager;
      unsigned char start : 1;
      unsigned char in_pager : 1;
      unsigned char desktop  : 1;
      int           x, y, dx, dy, button;
   } drag;
};

struct _Pager_Popup
{
   Evas_Object  *popup;
   Pager        *pager;
   Evas_Object  *o_bg;
   Ecore_Timer  *timer;
   unsigned char urgent : 1;
};

static void             _pager_desk_livethumb_setup(Pager_Desk *pd);
static void             _pager_cb_obj_moveresize(void *data, Evas *e EINA_UNUSED, Evas_Object *obj EINA_UNUSED, void *event_info EINA_UNUSED);
static void             _button_cb_mouse_down(void *data, Evas *e EINA_UNUSED, Evas_Object *obj EINA_UNUSED, void *event_info);
static void             _pager_inst_cb_menu_configure(void *data EINA_UNUSED, E_Menu *m EINA_UNUSED, E_Menu_Item *mi EINA_UNUSED);
static void             _pager_inst_cb_menu_virtual_desktops_dialog(void *data, E_Menu *m EINA_UNUSED, E_Menu_Item *mi EINA_UNUSED);
static void             _pager_instance_drop_zone_recalc(Instance *inst);
static Eina_Bool        _pager_cb_event_bg_update(void *data EINA_UNUSED, int type EINA_UNUSED, void *event);
static Eina_Bool        _pager_cb_event_client_resize(void *data EINA_UNUSED, int type EINA_UNUSED, void *event);
static Eina_Bool        _pager_cb_event_client_move(void *data EINA_UNUSED, int type EINA_UNUSED, void *event);
static Eina_Bool        _pager_cb_event_client_add(void *data EINA_UNUSED, int type EINA_UNUSED, void *event);
static Eina_Bool        _pager_cb_event_client_remove(void *data EINA_UNUSED, int type EINA_UNUSED, void *event);
static Eina_Bool        _pager_cb_event_client_iconify(void *data EINA_UNUSED, int type EINA_UNUSED, void *event);
static Eina_Bool        _pager_cb_event_client_uniconify(void *data EINA_UNUSED, int type EINA_UNUSED, void *event);
static Eina_Bool        _pager_cb_event_client_stick(void *data EINA_UNUSED, int type EINA_UNUSED, void *event);
static Eina_Bool        _pager_cb_event_client_unstick(void *data EINA_UNUSED, int type EINA_UNUSED, void *event);
static Eina_Bool        _pager_cb_event_client_desk_set(void *data EINA_UNUSED, int type EINA_UNUSED, void *event);
static Eina_Bool        _pager_cb_event_client_stack(void *data EINA_UNUSED, int type EINA_UNUSED, void *event);
static Eina_Bool        _pager_cb_event_client_icon_change(void *data EINA_UNUSED, int type EINA_UNUSED, void *event);
static Eina_Bool        _pager_cb_event_client_urgent_change(void *data EINA_UNUSED, int type EINA_UNUSED, void *event);
static Eina_Bool        _pager_cb_event_client_focus_in(void *data EINA_UNUSED, int type EINA_UNUSED, void *event);
static Eina_Bool        _pager_cb_event_client_focus_out(void *data EINA_UNUSED, int type EINA_UNUSED, void *event);
static Eina_Bool        _pager_cb_event_client_property(void *data EINA_UNUSED, int type EINA_UNUSED, void *event);
static Eina_Bool        _pager_cb_event_zone_desk_count_set(void *data EINA_UNUSED, int type EINA_UNUSED, void *event);
static Eina_Bool        _pager_cb_event_desk_show(void *data EINA_UNUSED, int type EINA_UNUSED, void *event);
static Eina_Bool        _pager_cb_event_desk_name_change(void *data EINA_UNUSED, int type EINA_UNUSED, void *event);
static Eina_Bool        _pager_cb_event_compositor_resize(void *data EINA_UNUSED, int type EINA_UNUSED, void *event);
static void             _pager_window_cb_mouse_down(void *data, Evas *e EINA_UNUSED, Evas_Object *obj EINA_UNUSED, void *event_info);
static void             _pager_window_cb_mouse_up(void *data, Evas *e EINA_UNUSED, Evas_Object *obj EINA_UNUSED, void *event_info);
static void             _pager_window_cb_mouse_move(void *data, Evas *e EINA_UNUSED, Evas_Object *obj EINA_UNUSED, void *event_info);
static void            *_pager_window_cb_drag_convert(E_Drag *drag, const char *type);
static void             _pager_window_cb_drag_finished(E_Drag *drag, int dropped);
static void             _pager_drop_cb_enter(void *data, const char *type EINA_UNUSED, void *event_info);
static void             _pager_drop_cb_move(void *data, const char *type EINA_UNUSED, void *event_info);
static void             _pager_drop_cb_leave(void *data, const char *type EINA_UNUSED, void *event_info EINA_UNUSED);
static void             _pager_drop_cb_drop(void *data, const char *type, void *event_info);
static void             _pager_inst_cb_scroll(void *data);
static void             _pager_update_drop_position(Pager *p, Evas_Coord x, Evas_Coord y);
static void             _pager_desk_cb_mouse_down(void *data, Evas *e EINA_UNUSED, Evas_Object *obj EINA_UNUSED, void *event_info);
static void             _pager_desk_cb_mouse_up(void *data, Evas *e EINA_UNUSED, Evas_Object *obj EINA_UNUSED, void *event_info);
static void             _pager_desk_cb_mouse_move(void *data, Evas *e EINA_UNUSED, Evas_Object *obj EINA_UNUSED, void *event_info);
static void             _pager_desk_cb_drag_finished(E_Drag *drag, int dropped);
static void             _pager_desk_cb_mouse_wheel(void *data, Evas *e EINA_UNUSED, Evas_Object *obj EINA_UNUSED, void *event_info);
static Eina_Bool        _pager_popup_cb_timeout(void *data);
static Pager           *_pager_new(Evas *evas, E_Zone *zone, E_Gadcon *gc);
static void             _pager_free(Pager *p);
static void             _pager_fill(Pager *p, E_Gadcon *gc);
static void             _pager_empty(Pager *p);
static Pager_Desk      *_pager_desk_new(Pager *p, E_Desk *desk, int xpos, int ypos, Eina_Bool invert);
static void             _pager_desk_free(Pager_Desk *pd);
static Pager_Desk      *_pager_desk_at_coord(Pager *p, Evas_Coord x, Evas_Coord y);
static void             _pager_desk_select(Pager_Desk *pd);
static Pager_Desk      *_pager_desk_find(Pager *p, E_Desk *desk);
static void             _pager_desk_switch(Pager_Desk *pd1, Pager_Desk *pd2);
static Pager_Win       *_pager_window_new(Pager_Desk *pd, E_Client *client);
static void             _pager_window_free(Pager_Win *pw);
static void             _pager_window_move(Pager_Win *pw);
static Pager_Win       *_pager_window_find(Pager *p, E_Client *client);
static Pager_Win       *_pager_desk_window_find(Pager_Desk *pd, E_Client *client);
static Pager_Popup     *_pager_popup_new(E_Zone *zone, int keyaction);
static void             _pager_popup_free(Pager_Popup *pp);
static Pager_Popup     *_pager_popup_find(E_Zone *zone);

/* functions for pager popup on key actions */
static int              _pager_popup_show(void);
static void             _pager_popup_hide(int switch_desk);
static Eina_Bool        _pager_popup_cb_mouse_down(void *data EINA_UNUSED, int type EINA_UNUSED, void *event);
static Eina_Bool        _pager_popup_cb_mouse_up(void *data EINA_UNUSED, int type EINA_UNUSED, void *event);
static Eina_Bool        _pager_popup_cb_mouse_move(void *data EINA_UNUSED, int type EINA_UNUSED, void *event);
static Eina_Bool        _pager_popup_cb_mouse_wheel(void *data EINA_UNUSED, int type EINA_UNUSED, void *event);
static void             _pager_popup_desk_switch(int x, int y);
static void             _pager_popup_modifiers_set(int mod);
static Eina_Bool        _pager_popup_cb_key_down(void *data EINA_UNUSED, int type EINA_UNUSED, void *event);
static Eina_Bool        _pager_popup_cb_key_up(void *data EINA_UNUSED, int type EINA_UNUSED, void *event);
static void             _pager_popup_cb_action_show(E_Object *obj EINA_UNUSED, const char *params EINA_UNUSED, Ecore_Event_Key *ev EINA_UNUSED);
static void             _pager_popup_cb_action_switch(E_Object *obj EINA_UNUSED, const char *params, Ecore_Event_Key *ev);

/* variables for pager popup on key actions */
static E_Action *act_popup_show = NULL;
static E_Action *act_popup_switch = NULL;
static Ecore_Window input_window = 0;
static Eina_List *handlers = NULL;
static Pager_Popup *act_popup = NULL; /* active popup */
static int hold_count = 0;
static int hold_mod = 0;
static E_Desk *current_desk = NULL;
static E_Config_DD *conf_edd = NULL;
static Eina_List *pagers = NULL;

Config *pager_config = NULL;

static E_Gadcon_Client *
_gc_init(E_Gadcon *gc, const char *name, const char *id, const char *style)
{
   Pager *p;
   Evas_Object *o;
   E_Gadcon_Client *gcc;
   Instance *inst;
   Evas_Coord x, y, w, h;
   const char *drop[] =
   {
      "enlightenment/pager_win", "enlightenment/border",
      "enlightenment/vdesktop"
   };

   inst = E_NEW(Instance, 1);

   p = _pager_new(gc->evas, gc->zone, gc);
   p->inst = inst;
   inst->pager = p;
   o = p->o_table;
   gcc = e_gadcon_client_new(gc, name, id, style, o);
   gcc->data = inst;

   inst->gcc = gcc;
   inst->o_pager = o;

   evas_object_geometry_get(o, &x, &y, &w, &h);
   p->drop_handler =
     e_drop_handler_add(E_OBJECT(inst->gcc), NULL, p,
                        _pager_drop_cb_enter, _pager_drop_cb_move,
                        _pager_drop_cb_leave, _pager_drop_cb_drop,
                        drop, 3, x, y, w, h);
   evas_object_event_callback_add(o, EVAS_CALLBACK_MOVE,
                                  _pager_cb_obj_moveresize, inst);
   evas_object_event_callback_add(o, EVAS_CALLBACK_RESIZE,
                                  _pager_cb_obj_moveresize, inst);
   evas_object_event_callback_add(o, EVAS_CALLBACK_MOUSE_DOWN,
                                  _button_cb_mouse_down, inst);
   pager_config->instances = eina_list_append(pager_config->instances, inst);
   return gcc;
}

static void
_gc_shutdown(E_Gadcon_Client *gcc)
{
   Instance *inst;

   inst = gcc->data;
   pager_config->instances = eina_list_remove(pager_config->instances, inst);
   e_drop_handler_del(inst->pager->drop_handler);
   _pager_free(inst->pager);
   free(inst);
}

static void
_gc_orient(E_Gadcon_Client *gcc, E_Gadcon_Orient orient EINA_UNUSED)
{
   Instance *inst;
   int aspect_w, aspect_h;
   double aspect_ratio;

   inst = gcc->data;
   if (inst->pager->invert)
     {
        aspect_w = inst->pager->ynum * inst->pager->zone->w;
        aspect_h = inst->pager->xnum * inst->pager->zone->h;
     }
   else
     {
        aspect_w = inst->pager->xnum * inst->pager->zone->w;
        aspect_h = inst->pager->ynum * inst->pager->zone->h;
     }

   e_gadcon_client_aspect_set(gcc, aspect_w, aspect_h);
   aspect_ratio = (double)aspect_w / (double)aspect_h;

   if (aspect_ratio > 1.0)
     e_gadcon_client_min_size_set(gcc, 16 * aspect_ratio, 16);
   else
     e_gadcon_client_min_size_set(gcc, 16, 16 * aspect_ratio);
}

static const char *
_gc_label(const E_Gadcon_Client_Class *client_class EINA_UNUSED)
{
   return _("Pager");
}

static Evas_Object *
_gc_icon(const E_Gadcon_Client_Class *client_class EINA_UNUSED, Evas *evas)
{
   Evas_Object *o;
   char buf[PATH_MAX];

   o = edje_object_add(evas);
   snprintf(buf, sizeof(buf), "%s/e-module-pager-plain.edj",
            e_module_dir_get(pager_config->module));
   edje_object_file_set(o, buf, "icon");
   return o;
}

static const char *
_gc_id_new(const E_Gadcon_Client_Class *client_class)
{
   static char buf[4096];

   snprintf(buf, sizeof(buf), "%s.%d", client_class->name,
            eina_list_count(pager_config->instances) + 1);
   return buf;
}

static Pager *
_pager_new(Evas *evas, E_Zone *zone, E_Gadcon *gc)
{
   Pager *p;

   p = E_NEW(Pager, 1);
   p->inst = NULL;
   p->popup = NULL;
   p->o_table = elm_table_add(e_win_evas_win_get(evas));
   E_FILL(p->o_table);
   elm_table_homogeneous_set(p->o_table, 1);
   p->zone = zone;
   _pager_fill(p, gc);
   pagers = eina_list_append(pagers, p);
   return p;
}

static void
_pager_free(Pager *p)
{
   _pager_empty(p);
   evas_object_del(p->o_table);
   pagers = eina_list_remove(pagers, p);
   free(p);
}

static void
_pager_fill(Pager *p, E_Gadcon *gc)
{
   int x, y;

   if (gc)
     {
        switch (gc->orient)
          {

             case E_GADCON_ORIENT_TOP:
             case E_GADCON_ORIENT_BOTTOM:
             case E_GADCON_ORIENT_CORNER_TL:
             case E_GADCON_ORIENT_CORNER_TR:
             case E_GADCON_ORIENT_CORNER_BL:
             case E_GADCON_ORIENT_CORNER_BR:
             case E_GADCON_ORIENT_HORIZ:
             case E_GADCON_ORIENT_FLOAT:
               p->invert = EINA_FALSE;
               break;
             case E_GADCON_ORIENT_VERT:
             case E_GADCON_ORIENT_LEFT:
             case E_GADCON_ORIENT_RIGHT:
             case E_GADCON_ORIENT_CORNER_LT:
             case E_GADCON_ORIENT_CORNER_RT:
             case E_GADCON_ORIENT_CORNER_LB:
             case E_GADCON_ORIENT_CORNER_RB:
             default:
               p->invert = EINA_TRUE;
          }
     }
   e_zone_desk_count_get(p->zone, &(p->xnum), &(p->ynum));
   if (p->ynum != 1) p->invert = EINA_FALSE;
   for (x = 0; x < p->xnum; x++)
     {
        for (y = 0; y < p->ynum; y++)
          {
             Pager_Desk *pd;
             E_Desk *desk;

             desk = e_desk_at_xy_get(p->zone, x, y);
             if (desk)
               {
                  pd = _pager_desk_new(p, desk, x, y, p->invert);
                  if (pd)
                    {
                       p->desks = eina_list_append(p->desks, pd);
                       if (desk == e_desk_current_get(desk->zone))
                         _pager_desk_select(pd);
                    }
               }
          }
     }
}

static void
_pager_empty(Pager *p)
{
   p->active_pd = NULL;
   while (p->desks)
     {
        _pager_desk_free(p->desks->data);
        p->desks = eina_list_remove_list(p->desks, p->desks);
     }
}

static void
_pager_desk_livethumb_setup(Pager_Desk *pd)
{
   const char *bgfile;
   Evas *e;
   Evas_Object *o;

   e = evas_object_evas_get(pd->pager->o_table);

   if (!pd->o_bg)
     {
        pd->o_bg = e_livethumb_add(e);
        e_livethumb_vsize_set(pd->o_bg, pd->desk->zone->w / 16, pd->desk->zone->h / 16);
//        edje_extern_object_aspect_set(pd->o_bg, EDJE_ASPECT_CONTROL_NEITHER,
//                                      pd->desk->zone->w / 16, pd->desk->zone->h / 16);
        edje_object_part_swallow(pd->o_desk, "e.background", pd->o_bg);
     }

   o = e_livethumb_thumb_get(pd->o_bg);
   if (!o) o = edje_object_add(e_livethumb_evas_get(pd->o_bg));
   bgfile = e_bg_file_get(pd->desk->zone->num, pd->desk->x, pd->desk->y);
   edje_object_file_set(o, bgfile, "e/desktop/background");
   e_livethumb_thumb_set(pd->o_bg, o);
   eina_stringshare_del(bgfile);
}

static Pager_Desk *
_pager_desk_new(Pager *p, E_Desk *desk, int xpos, int ypos, Eina_Bool invert)
{
   Pager_Desk *pd;
   Evas_Object *o, *evo;
   E_Client *ec;
   int w, h;
   Evas *e;

   if (!desk) return NULL;
   pd = E_NEW(Pager_Desk, 1);
   if (!pd) return NULL;

   pd->xpos = xpos;
   pd->ypos = ypos;
   pd->urgent = 0;
   pd->desk = desk;
   e_object_ref(E_OBJECT(desk));
   pd->pager = p;

   e = evas_object_evas_get(p->o_table);
   o = edje_object_add(e);
   pd->o_desk = o;
   e_theme_edje_object_set(o, "base/theme/modules/pager",
                           "e/modules/pager/desk");
   edje_object_part_text_set(o, "e.text.label", desk->name);
   if (pager_config->show_desk_names)
     edje_object_signal_emit(o, "e,name,show", "e");

   if (pager_config->disable_live_preview)
     edje_object_signal_emit(pd->o_desk, "e,preview,off", "e");
   else
     {
        _pager_desk_livethumb_setup(pd);
        edje_object_signal_emit(pd->o_desk, "e,preview,on", "e");
     }

   edje_object_size_min_calc(o, &w, &h);
   E_EXPAND(o);
   E_FILL(o);
   evas_object_size_hint_min_set(o, w, h);
   if (invert)
     elm_table_pack(p->o_table, o, ypos, xpos, 1, 1);
   else
     elm_table_pack(p->o_table, o, xpos, ypos, 1, 1);

   evo = (Evas_Object *)edje_object_part_object_get(o, "e.eventarea");
   if (!evo) evo = o;

   evas_object_event_callback_add(evo, EVAS_CALLBACK_MOUSE_DOWN,
                                  _pager_desk_cb_mouse_down, pd);
   evas_object_event_callback_add(evo, EVAS_CALLBACK_MOUSE_UP,
                                  _pager_desk_cb_mouse_up, pd);
   evas_object_event_callback_add(evo, EVAS_CALLBACK_MOUSE_MOVE,
                                  _pager_desk_cb_mouse_move, pd);
   evas_object_event_callback_add(evo, EVAS_CALLBACK_MOUSE_WHEEL,
                                  _pager_desk_cb_mouse_wheel, pd);
   evas_object_show(o);

   o = e_layout_add(e);
   pd->o_layout = o;

   e_layout_virtual_size_set(o, desk->zone->w, desk->zone->h);
   edje_object_part_swallow(pd->o_desk, "e.swallow.content", pd->o_layout);
   evas_object_show(o);

   E_CLIENT_FOREACH(ec)
     {
        Pager_Win *pw;

        if (e_client_util_ignored_get(ec)) continue;
        if ((ec->new_client) || (ec->zone != desk->zone) ||
            ((ec->desk != desk) && (!ec->sticky)))
          continue;
        pw = _pager_window_new(pd, ec);
        if (pw) pd->wins = eina_list_append(pd->wins, pw);
     }
   return pd;
}

static void
_pager_desk_free(Pager_Desk *pd)
{
   Pager_Win *w;

   evas_object_del(pd->o_desk);
   evas_object_del(pd->o_bg);
   evas_object_del(pd->o_layout);
   EINA_LIST_FREE(pd->wins, w)
     _pager_window_free(w);
   e_object_unref(E_OBJECT(pd->desk));
   free(pd);
}

static Pager_Desk *
_pager_desk_at_coord(Pager *p, Evas_Coord x, Evas_Coord y)
{
   Eina_List *l;
   Pager_Desk *pd;

   EINA_LIST_FOREACH(p->desks, l, pd)
     {
        Evas_Coord dx, dy, dw, dh;

        evas_object_geometry_get(pd->o_desk, &dx, &dy, &dw, &dh);
        if (E_INSIDE(x, y, dx, dy, dw, dh)) return pd;
     }
   return NULL;
}

static void
_pager_desk_select(Pager_Desk *pd)
{
   if (pd->current) return;
   if (pd->pager->active_pd)
     {
        pd->pager->active_pd->current = 0;
        edje_object_signal_emit(pd->pager->active_pd->o_desk, "e,state,unselected", "e");
     }
   pd->current = 1;
   evas_object_raise(pd->o_desk);
   edje_object_signal_emit(pd->o_desk, "e,state,selected", "e");
   pd->pager->active_pd = pd;
}

static Pager_Desk *
_pager_desk_find(Pager *p, E_Desk *desk)
{
   Eina_List *l;
   Pager_Desk *pd;

   EINA_LIST_FOREACH(p->desks, l, pd)
     if (pd->desk == desk) return pd;

   return NULL;
}

static void
_pager_desk_switch(Pager_Desk *pd1, Pager_Desk *pd2)
{
   int c;
   E_Zone *zone1, *zone2;
   E_Desk *desk1, *desk2;
   Pager_Win *pw;
   Eina_List *l;

   if ((!pd1) || (!pd2) || (!pd1->desk) || (!pd2->desk)) return;
   if (pd1 == pd2) return;

   desk1 = pd1->desk;
   desk2 = pd2->desk;
   zone1 = pd1->desk->zone;
   zone2 = pd2->desk->zone;

   /* Move opened windows from on desk to the other */
   EINA_LIST_FOREACH(pd1->wins, l, pw)
     {
        if ((!pw) || (!pw->client) || (pw->client->iconic)) continue;
        pw->client->hidden = 0;
        e_client_desk_set(pw->client, desk2);
     }
   EINA_LIST_FOREACH(pd2->wins, l, pw)
     {
        if ((!pw) || (!pw->client) || (pw->client->iconic)) continue;
        pw->client->hidden = 0;
        e_client_desk_set(pw->client, desk1);
     }

   /* Modify desktop names in the config */
   for (l = e_config->desktop_names, c = 0; l && c < 2; l = l->next)
     {
        E_Config_Desktop_Name *tmp_dn;

        tmp_dn = l->data;
        if (!tmp_dn) continue;
        if ((tmp_dn->desk_x == desk1->x) &&
            (tmp_dn->desk_y == desk1->y) &&
            (tmp_dn->zone == (int)desk1->zone->num))
          {
             tmp_dn->desk_x = desk2->x;
             tmp_dn->desk_y = desk2->y;
             tmp_dn->zone = desk2->zone->num;
             c++;
          }
        else if ((tmp_dn->desk_x == desk2->x) &&
                 (tmp_dn->desk_y == desk2->y) &&
                 (tmp_dn->zone == (int)desk2->zone->num))
          {
             tmp_dn->desk_x = desk1->x;
             tmp_dn->desk_y = desk1->y;
             tmp_dn->zone = desk1->zone->num;
             c++;
          }
     }
   if (c > 0) e_config_save();
   e_desk_name_update();

   /* Modify desktop backgrounds in the config */
   for (l = e_config->desktop_backgrounds, c = 0; l && c < 2; l = l->next)
     {
        E_Config_Desktop_Background *tmp_db;

        tmp_db = l->data;
        if (!tmp_db) continue;
        if ((tmp_db->desk_x == desk1->x) &&
            (tmp_db->desk_y == desk1->y) &&
            (tmp_db->zone == (int)desk1->zone->num))
          {
             tmp_db->desk_x = desk2->x;
             tmp_db->desk_y = desk2->y;
             tmp_db->zone = desk2->zone->num;
             c++;
          }
        else if ((tmp_db->desk_x == desk2->x) &&
                 (tmp_db->desk_y == desk2->y) &&
                 (tmp_db->zone == (int)desk2->zone->num))
          {
             tmp_db->desk_x = desk1->x;
             tmp_db->desk_y = desk1->y;
             tmp_db->zone = desk1->zone->num;
             c++;
          }
     }
   if (c > 0) e_config_save();

   /* If the current desktop has been switched, force to update of the screen */
   if (desk2 == e_desk_current_get(zone2))
     {
        desk2->visible = 0;
        e_desk_show(desk2);
     }
   if (desk1 == e_desk_current_get(zone1))
     {
        desk1->visible = 0;
        e_desk_show(desk1);
     }
}

static Pager_Win *
_pager_window_new(Pager_Desk *pd, E_Client *client)
{
   Pager_Win *pw;
   Evas_Object *o;
   int visible;

   if (!client) return NULL;
   pw = E_NEW(Pager_Win, 1);
   if (!pw) return NULL;

   pw->client = client;
   e_object_ref(E_OBJECT(client));

   visible = ((!client->iconic) && (!client->netwm.state.skip_pager));
   pw->skip_winlist = client->netwm.state.skip_pager;
   pw->desk = pd;

   o = edje_object_add(evas_object_evas_get(pd->pager->o_table));
   pw->o_window = o;
   e_theme_edje_object_set(o, "base/theme/modules/pager",
                           "e/modules/pager/window");
   if (visible) evas_object_show(o);

   e_layout_pack(pd->o_layout, pw->o_window);
   e_layout_child_raise(pw->o_window);

   evas_object_event_callback_add(o, EVAS_CALLBACK_MOUSE_DOWN,
                                  _pager_window_cb_mouse_down, pw);
   evas_object_event_callback_add(o, EVAS_CALLBACK_MOUSE_UP,
                                  _pager_window_cb_mouse_up, pw);
   evas_object_event_callback_add(o, EVAS_CALLBACK_MOUSE_MOVE,
                                  _pager_window_cb_mouse_move, pw);

   o = e_client_icon_add(client, evas_object_evas_get(pd->pager->o_table));
   if (o)
     {
        pw->o_icon = o;
        evas_object_show(o);
        edje_object_part_swallow(pw->o_window, "e.swallow.icon", o);
     }

   if (client->urgent)
     {
        if (!(client->iconic))
          edje_object_signal_emit(pd->o_desk, "e,state,urgent", "e");
        edje_object_signal_emit(pw->o_window, "e,state,urgent", "e");
     }

   evas_object_show(o);

   _pager_window_move(pw);
   return pw;
}

static void
_pager_window_free(Pager_Win *pw)
{
   if ((pw->drag.from_pager) && (pw->desk->pager->dragging))
     pw->desk->pager->dragging = 0;
   if (pw->o_window) evas_object_del(pw->o_window);
   if (pw->o_icon) evas_object_del(pw->o_icon);
   e_object_unref(E_OBJECT(pw->client));
   free(pw);
}

static void
_pager_window_move(Pager_Win *pw)
{
   e_layout_child_move(pw->o_window,
                       pw->client->x - pw->client->zone->x,
                       pw->client->y - pw->client->zone->y);
   e_layout_child_resize(pw->o_window, pw->client->w, pw->client->h);
}

static Pager_Win *
_pager_window_find(Pager *p, E_Client *client)
{
   Eina_List *l;
   Pager_Desk *pd;

   EINA_LIST_FOREACH(p->desks, l, pd)
     {
        Pager_Win *pw;

        pw = _pager_desk_window_find(pd, client);
        if (pw) return pw;
     }
   return NULL;
}

static Pager_Win *
_pager_desk_window_find(Pager_Desk *pd, E_Client *client)
{
   Eina_List *l;
   Pager_Win *pw;

   EINA_LIST_FOREACH(pd->wins, l, pw)
     if (pw->client == client) return pw;

   return NULL;
}

static void
_pager_popup_cb_del(void *data, Evas *e EINA_UNUSED, Evas_Object *obj EINA_UNUSED, void *event_info EINA_UNUSED)
{
   Pager_Popup *pp = data;
   E_FREE_FUNC(pp->timer, ecore_timer_del);
   _pager_free(pp->pager);
   free(pp);
}

static Pager_Popup *
_pager_popup_new(E_Zone *zone, int keyaction)
{
   Pager_Popup *pp;
   Evas_Coord w, h, zx, zy, zw, zh;
   int x, y, height, width;
   E_Desk *desk;

   pp = E_NEW(Pager_Popup, 1);
   if (!pp) return NULL;

   /* Show popup */
   pp->pager = _pager_new(e_comp->evas, zone, NULL);

   pp->pager->popup = pp;
   pp->urgent = 0;

   e_zone_desk_count_get(zone, &x, &y);

   if (keyaction)
     height = pager_config->popup_act_height * y;
   else
     height = pager_config->popup_height * y;

   width = height * (zone->w * x) / (zone->h * y);

   evas_object_move(pp->pager->o_table, 0, 0);
   evas_object_resize(pp->pager->o_table, width, height);

   pp->o_bg = edje_object_add(e_comp->evas);
   evas_object_name_set(pp->o_bg, "pager_popup");
   e_theme_edje_object_set(pp->o_bg, "base/theme/modules/pager",
                           "e/modules/pager/popup");
   desk = e_desk_current_get(zone);
   if (desk)
     edje_object_part_text_set(pp->o_bg, "e.text.label", desk->name);

   evas_object_size_hint_min_set(pp->pager->o_table, width, height);
   edje_object_part_swallow(pp->o_bg, "e.swallow.content", pp->pager->o_table);
   edje_object_size_min_calc(pp->o_bg, &w, &h);

   pp->popup = e_comp_object_util_add(pp->o_bg, E_COMP_OBJECT_TYPE_POPUP);
   evas_object_layer_set(pp->popup, E_LAYER_CLIENT_POPUP);
   evas_object_pass_events_set(pp->popup, 1);
   e_zone_useful_geometry_get(zone, &zx, &zy, &zw, &zh);
   evas_object_geometry_set(pp->popup, zx, zy, w, h);
   e_comp_object_util_center(pp->popup);
   evas_object_event_callback_add(pp->popup, EVAS_CALLBACK_DEL, _pager_popup_cb_del, pp);
   evas_object_show(pp->popup);

   pp->timer = NULL;

   return pp;
}

static void
_pager_popup_free(Pager_Popup *pp)
{
   E_FREE_FUNC(pp->timer, ecore_timer_del);
   evas_object_hide(pp->popup);
   evas_object_del(pp->popup);
}

static Pager_Popup *
_pager_popup_find(E_Zone *zone)
{
   Eina_List *l;
   Pager *p;

   EINA_LIST_FOREACH(pagers, l, p)
     if ((p->popup) && (p->zone == zone))
       return p->popup;

   return NULL;
}

static void
_pager_cb_obj_moveresize(void *data, Evas *e EINA_UNUSED, Evas_Object *obj EINA_UNUSED, void *event_info EINA_UNUSED)
{
   Instance *inst;

   inst = data;
   _pager_instance_drop_zone_recalc(inst);
}

static void
_button_cb_mouse_down(void *data, Evas *e EINA_UNUSED, Evas_Object *obj EINA_UNUSED, void *event_info)
{
   Instance *inst;
   Evas_Event_Mouse_Down *ev;
   E_Menu *m;
   E_Menu_Item *mi;
   int cx, cy;

   inst = data;
   ev = event_info;
   if (ev->button != 3) return;
   if (inst->gcc->menu) return;

   m = e_menu_new();
   mi = e_menu_item_new(m);
   e_menu_item_label_set(mi, _("Settings"));
   e_util_menu_item_theme_icon_set(mi, "configure");
   e_menu_item_callback_set(mi, _pager_inst_cb_menu_configure, NULL);

   m = e_gadcon_client_util_menu_items_append(inst->gcc, m, 0);
   if (e_configure_registry_exists("screen/virtual_desktops"))
     {
        mi = e_menu_item_new_relative(m, NULL);
        e_menu_item_label_set(mi, _("Virtual Desktops Settings"));
        e_util_menu_item_theme_icon_set(mi, "preferences-desktop");
        e_menu_item_callback_set(mi, _pager_inst_cb_menu_virtual_desktops_dialog, inst);
     }

   e_gadcon_canvas_zone_geometry_get(inst->gcc->gadcon, &cx, &cy,
                                     NULL, NULL);
   e_menu_activate_mouse(m, e_zone_current_get(),
                         cx + ev->output.x, cy + ev->output.y, 1, 1,
                         E_MENU_POP_DIRECTION_DOWN, ev->timestamp);
   evas_event_feed_mouse_up(inst->gcc->gadcon->evas, ev->button,
                            EVAS_BUTTON_NONE, ev->timestamp, NULL);
}

static void
_pager_inst_cb_menu_configure(void *data EINA_UNUSED, E_Menu *m EINA_UNUSED, E_Menu_Item *mi EINA_UNUSED)