no flip flop between last used workspace

i3_workspaces.nim

@@ -26,6 +26,7 @@ type
     urgent: bool
 
 var my_workspaces: seq[Workspace]
+var current_workspace: int = 0
 
 proc showWorkspaces()
 
@@ -37,6 +38,7 @@ proc buildString(ws: Workspace): string =
   else:
     str &= " "
   if ws.focused or ws.application.focused:
+    current_workspace = ws.num
     str &= FOCUSED
 #  elif ws.visible:
 #    str &= VISIBLE
@@ -60,6 +62,8 @@ proc switchWorkspace(workspace: string) =
   if workspace.contains("%"):
     return
   let ws = findWorkspace(workspace)
+  if ws.num == current_workspace:
+    return
   let cmd = "i3-msg workspace " & $ws.num
   discard execCmd(cmd)
   showWorkspaces()