How I can set auto paste clipboard, when input is active ? Is it possible to do it when page is ready ?
Allowing an automatically triggered paste event from a browser standpoint is a security risk so browsers don't support it. Using JavaScript you can manipulate the on paste event but that's obviously after the fact.
Here's an altered fiddle from a similar post http://jsfiddle.net/5bNx4/287/
it shows the $(ele).on("paste")
event in action if you're interested.