add gadget_site_(un)locked smart callbacks for forcing gadget site visibility

useful for cases where the gadget site has no popups to manage but visibility must
be maintained

ref T4732

src/bin/e_bryce.c

@@ -783,6 +783,26 @@ _bryce_gadget_popup(void *data, Evas_Object *obj EINA_UNUSED, void *event_info)
    _bryce_popup(data, event_info);
 }
 
+static void
+_bryce_gadget_locked(void *data, Evas_Object *obj EINA_UNUSED, void *event_info EINA_UNUSED)
+{
+   Bryce *b = data;
+
+   b->autohide_blocked++;
+   if (b->autohide)
+     _bryce_autohide_show(b);
+}
+
+static void
+_bryce_gadget_unlocked(void *data, Evas_Object *obj EINA_UNUSED, void *event_info EINA_UNUSED)
+{
+   Bryce *b = data;
+
+   b->autohide_blocked--;
+   if (b->autohide && (!b->mouse_in))
+     _bryce_autohide_hide(b);
+}
+
 static void
 _bryce_site_anchor(void *data, Evas_Object *obj, void *event_info EINA_UNUSED)
 {
@@ -814,6 +834,8 @@ _bryce_orient(Bryce *b)
    evas_object_smart_callback_add(b->site, "gadget_site_style_menu", _bryce_style_menu, b);
    evas_object_smart_callback_add(b->site, "gadget_site_owner_menu", _bryce_owner_menu, b);
    evas_object_smart_callback_add(b->site, "gadget_site_popup", _bryce_gadget_popup, b);
+   evas_object_smart_callback_add(b->site, "gadget_site_locked", _bryce_gadget_locked, b);
+   evas_object_smart_callback_add(b->site, "gadget_site_unlocked", _bryce_gadget_unlocked, b);
 }
 
 static void

src/bin/e_gadget.c

@@ -291,6 +291,7 @@ _gadget_wizard_end(void *data, int id)
    E_Gadget_Config *zgc = data;
 
    zgc->id = id;
+   evas_object_smart_callback_call(zgc->site->layout, "gadget_site_unlocked", NULL);
    _gadget_object_finalize(zgc);
 }
 
@@ -307,6 +308,7 @@ _gadget_object_create(E_Gadget_Config *zgc)
      {
         if (t->wizard)
           {
+             evas_object_smart_callback_call(zgc->site->layout, "gadget_site_locked", NULL);
              t->wizard(_gadget_wizard_end, zgc);
              added = 1;
              return EINA_TRUE;

src/bin/e_gadget.h

@@ -29,6 +29,10 @@
        - the anchor of the gadget site changed
       "gadget_site_gravity"
        - the gravity of the gadget site changed
+      "gadget_site_locked"
+       - the gadget site's visibility has been locked (must be visible)
+      "gadget_site_unlocked"
+       - the gadget site's visibility has been unlocked (can be hidden)
  * }
 
  * have E_Menu as event_info