remove focus_changed flag

include/nana/gui/detail/basic_window.hpp

@@ -76,11 +76,6 @@ namespace detail
 	{
 		using container = std::vector<basic_window*>;
 
-		struct root_context
-		{
-			bool focus_changed;
-		};
-
 		enum class update_state
 		{
 			none, lazy, refresh
@@ -203,7 +198,6 @@ namespace detail
 				std::vector<edge_nimbus_action> effects_edge_nimbus;
 				basic_window*	focus{nullptr};
 				basic_window*	menubar{nullptr};
-				root_context	context;
 				bool			ime_enabled{false};
 #if defined(NANA_WINDOWS)
 				cursor			running_cursor{ nana::cursor::arrow };
@@ -211,7 +205,7 @@ namespace detail
 				cursor			state_cursor{nana::cursor::arrow};
 				basic_window*	state_cursor_window{ nullptr };
 
-				std::function<void()> draw_through;	///< A draw through renderer for root widgets.
+				std::function<void()> draw_through;	// A draw through renderer for root widgets.
 			};
 
 			const category::flags category;

source/gui/detail/basic_window.cpp

@@ -195,7 +195,6 @@ namespace nana
 					{
 					case category::root_tag::value:
 						attribute.root = new attr_root_tag;
-						attribute.root->context.focus_changed = false;
 						break;
 					case category::frame_tag::value:
 						attribute.frame = new attr_frame_tag;

source/gui/detail/linux_X11/bedrock.cpp

@@ -664,7 +664,6 @@ namespace detail
 					auto focus = msgwnd->other.attribute.root->focus;
 					if(focus && focus->together.caret)
 						focus->together.caret->set_active(true);
-					msgwnd->root_widget->other.attribute.root->context.focus_changed = true;
 
 					arg_focus arg;
 					arg.window_handle = reinterpret_cast<window>(focus);
@@ -733,8 +732,8 @@ namespace detail
 						if(kill_focus != new_focus)
 							brock.wd_manager.do_lazy_refresh(kill_focus, false);
 					}
+
 					auto retain = msgwnd->together.events_ptr;
-					msgwnd->root_widget->other.attribute.root->context.focus_changed = false;
 					context.event_window = msgwnd;
 
 					pressed_wd = nullptr;
@@ -748,7 +747,7 @@ namespace detail
 						{
 							pressed_wd = msgwnd;
 							//If a root window is created during the mouse_down event, Nana.GUI will ignore the mouse_up event.
-							if(msgwnd->root_widget->other.attribute.root->context.focus_changed)
+							if (msgwnd->root != native_interface::get_focus_window())
 							{
 								//call the drawer mouse up event for restoring the surface graphics
 								msgwnd->flags.action = mouse_action::normal;

source/gui/detail/win32/bedrock.cpp

@@ -863,8 +863,6 @@ namespace detail
 					if(focus && focus->together.caret)
 						focus->together.caret->set_active(true);
 
-					msgwnd->root_widget->other.attribute.root->context.focus_changed = true;
-
 					arg_focus arg;
 					assign_arg(arg, focus, native_window, true);
 					if (!brock.emit(event_code::focus, focus, arg, true, &context))
@@ -888,9 +886,6 @@ namespace detail
 					//wParam indicates a handle of window that receives the focus.
 					brock.close_menu_if_focus_other_window(reinterpret_cast<native_window_type>(wParam));
 				}
-				//focus_changed means that during an event procedure if the focus is changed
-				if(brock.wd_manager.available(msgwnd))
-					msgwnd->root_widget->other.attribute.root->context.focus_changed = true;
 
 				def_window_proc = true;
 				break;
@@ -909,10 +904,7 @@ namespace detail
 					{
 						auto killed = brock.wd_manager.set_focus(msgwnd, false);
 						if (killed != msgwnd)
-						{
 							brock.wd_manager.do_lazy_refresh(killed, false);
-							msgwnd->root_widget->other.attribute.root->context.focus_changed = false;
-						}
 					}
 
 					arg_mouse arg;
@@ -946,10 +938,7 @@ namespace detail
 					{
 						auto kill_focus = brock.wd_manager.set_focus(new_focus, false);
 						if(kill_focus != new_focus)
-						{
 							brock.wd_manager.do_lazy_refresh(kill_focus, false);
-							msgwnd->root_widget->other.attribute.root->context.focus_changed = false;
-						}
 					}
 
 					arg_mouse arg;
@@ -960,7 +949,7 @@ namespace detail
 					if (brock.emit(event_code::mouse_down, msgwnd, arg, true, &context))
 					{
 						//If a root_window is created during the mouse_down event, Nana.GUI will ignore the mouse_up event.
-						if(msgwnd->root_widget->other.attribute.root->context.focus_changed)
+						if (msgwnd->root != native_interface::get_focus_window())
 						{
 							auto pos = native_interface::cursor_position();
 							auto rootwd = native_interface::find_window(pos.x, pos.y);