fix(hammerspoon): suppress duplicate app name toasts

Co-Authored-By: Claude <noreply@anthropic.com>

hammerspoon/.hammerspoon/init.lua

@@ -8,7 +8,7 @@ local appNameToast = AppNameToast.new(config.appNameToast)
 local windowHighlight = WindowHighlight.new(config.windowHighlight, {
   onWindowFocused = function()
     if config.appNameToast.showOnFocus then
-      appNameToast:show()
+      appNameToast:showOnFocus()
     end
   end,
 })

hammerspoon/.hammerspoon/modules/app_name_toast.lua

@@ -8,6 +8,7 @@ function AppNameToast.new(config)
     optionKeyDown = false,
     optionKeyWatcher = nil,
     shouldShow = nil,
+    focusedAppPid = nil,
   }, AppNameToast)
 end
 
@@ -15,7 +16,7 @@ function AppNameToast:setShouldShow(predicate)
   self.shouldShow = predicate
 end
 
-function AppNameToast:show()
+function AppNameToast:_show(skipIfAppUnchanged)
   if not self.config.enabled then return end
   if self.shouldShow and not self.shouldShow() then return end
 
@@ -23,6 +24,10 @@ function AppNameToast:show()
   local app = win and win:application() or nil
   if not app then return end
 
+  local appPid = app:pid()
+  if skipIfAppUnchanged and appPid == self.focusedAppPid then return end
+  self.focusedAppPid = appPid
+
   if self.alertId then
     hs.alert.closeSpecific(self.alertId, 0)
   end
@@ -35,6 +40,14 @@ function AppNameToast:show()
   )
 end
 
+function AppNameToast:show()
+  self:_show(false)
+end
+
+function AppNameToast:showOnFocus()
+  self:_show(true)
+end
+
 function AppNameToast:start()
   if not self.config.showOnOption then return self end