I was looking for this too, and I came up with the following workaround. Messages allows you to use AppleScript to handle incoming messages, so I wrote an AppleScript to create a notification when messages arrive. It may be possible to get the dock icon to bounce with this approach as well, but I was happy with it as is.
1) Run Script Edtor, create a new file, and paste in the below file. Save it in this location:
/Users/<your username here>/Library/Application Scripts/com.apple.iChat/Show Notification
2) In the Messages app open Preferences and under "AppleScript handler" select "Show Notification"
3) Now a notification should be displayed when new messages (among other things) arrive.
Regards,
Jeremy
Here is what you paste into the script in step 1:
(*
Based on "Speak Events.applescript"
*)
using terms from application "Messages"
on message senttheMessagewitheventDescription
# say eventDescription
end message sent
on message receivedtheMessagefromtheBuddywitheventDescription
notify_me(theBuddy, eventDescription)
end message received
on chat room message receivedfromtheBuddywitheventDescription
notify_me(theBuddy, eventDescription)
end chat room message received
on active chat message receivedfromtheBuddywitheventDescription
notify_me(theBuddy, eventDescription)
end active chat message received
on addressed message receivedtheMessagefromtheBuddyfortheChatwitheventDescription
notify_me(theBuddy, eventDescription)
end addressed message received
on received text invitationfromtheBuddywitheventDescription
notify_me(theBuddy, eventDescription)
end received text invitation
on received audio invitationtheTextfromtheBuddyfortheChatwitheventDescription
notify_me(theBuddy, eventDescription)
end received audio invitation
on received video invitationtheTextfromtheBuddyfortheChatwitheventDescription
notify_me(theBuddy, eventDescription)
end received video invitation
on received local screen sharing invitationfromtheBuddyfortheChatwitheventDescription
notify_me(theBuddy, eventDescription)
end received local screen sharing invitation
on buddy authorization requestedwitheventDescription
notify_me("buddy auth requested", eventDescription)
end buddy authorization requested
on addressed chat room message receivedfromtheBuddywitheventDescription
notify_me(theBuddy, eventDescription)
end addressed chat room message received
on received remote screen sharing invitationfromtheBuddywitheventDescription
notify_me(theBuddy, eventDescription)
end received remote screen sharing invitation
# The following are unused but need to be defined to avoid an error
on login finishedwitheventDescription
# say eventDescription
end login finished
on logout finishedwitheventDescription
# say eventDescription
end logout finished
on buddy became availablewitheventDescription
# say eventDescription
end buddy became available
on buddy became unavailablewitheventDescription
# say eventDescription
end buddy became unavailable
on received file transfer invitationtheFileTransferwitheventDescription
# say eventDescription
end received file transfer invitation
on av chat startedwitheventDescription
# say eventDescription
end av chat started
on av chat endedwitheventDescription
# say eventDescription
end av chat ended
on completed file transferwitheventDescription
# say eventDescription
end completed file transfer
end using terms from
on notify_me(theBuddy, eventDescription)
set buddyHandle to name of theBuddy
display notificationeventDescriptionwith title "Incoming message" subtitlebuddyHandle
delay 1 --one online source said we can't show notifications as the last thing we do, so adding delay here
end notify_me
