Fix focus workaround

awesome/keys.lua

@@ -24,6 +24,37 @@ local modkey = "Mod4"
 -- define module table
 local keys = {}
 
+-- AwesomeWM Vim Tmux Navigator
+
+local focus_bydirection = function(direction)
+    awful.client.focus.global_bydirection(direction)
+    if client.focus then
+        -- focus on the client
+        client.focus:raise()
+    end
+
+    -- BUG: focus across screens is wonky when there are no clients on the destination screen
+    -- https://github.com/awesomeWM/awesome/issues/3638
+    -- Workaround: manually unfocus client after moving focus to an empty screen
+    local is_empty_destination = #awful.screen.focused().clients < 1
+
+    if is_empty_destination then
+        -- manually unfocus the current focused client
+        client.focus = nil
+    end
+end
+
+require("awesomewm-vim-tmux-navigator") {
+     up = {"Up", "k"},
+     down = {"Down", "j"},
+     left = {"Left", "h"},
+     right = {"Right", "l"},
+     mod = "Mod4",
+     mod_keysym = "Super_L",
+     experimental = true,
+     focus = focus_bydirection
+}
+
 
 -- ===================================================================
 -- Movement Functions (Called by some keybinds)

awesome/rc.lua

@@ -132,16 +132,6 @@ screen.connect_signal("property::geometry", awesome.restart)
 collectgarbage("setpause", 110)
 collectgarbage("setstepmul", 1000)
 
-require("awesomewm-vim-tmux-navigator") {
-     up = {"Up", "k"},
-     down = {"Down", "j"},
-     left = {"Left", "h"},
-     right = {"Right", "l"},
-     mod = "Mod4",
-     mod_keysym = "Super_L",
-     experimental = true
-}
-
 local function move_mouse_onto_focused_client()
     local c = client.focus
 	if c then