core: emit view decoration updated signal even for unmapped views (#2350

)

This fixes problems with views like Steam's dialogs which map and unmap
and change their decoration state in the meantime. Plus, it makes no
sense not to emit the signal.

src/view/xdg-shell/xdg-toplevel-view.cpp

@@ -355,7 +355,7 @@ void wf::xdg_toplevel_view_t::set_decoration_mode(bool use_csd)
 {
     bool was_decorated = should_be_decorated();
     this->has_client_decoration = use_csd;
-    if ((was_decorated != should_be_decorated()) && is_mapped())
+    if (was_decorated != should_be_decorated())
     {
         wf::view_decoration_state_updated_signal data;
         data.view = {this};

src/view/xwayland/xwayland-toplevel-view.hpp

@@ -486,7 +486,7 @@ class wayfire_xwayland_view : public wf::toplevel_view_interface_t, public wayfi
     {
         bool was_decorated = should_be_decorated();
         this->has_client_decoration = use_csd;
-        if ((was_decorated != should_be_decorated()) && is_mapped())
+        if (was_decorated != should_be_decorated())
         {
             wf::view_decoration_state_updated_signal data;
             data.view = {this};