Mercurial > urweb
diff tests/updateErr.ur @ 729:7c6b6c3c7b79
Some client-side error handling
| author | Adam Chlipala <adamc@hcoop.net> |
|---|---|
| date | Thu, 16 Apr 2009 13:47:20 -0400 |
| parents | |
| children | abb0e95dcaa1 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/tests/updateErr.ur Thu Apr 16 13:47:20 2009 -0400 @@ -0,0 +1,17 @@ +fun main () : transaction page = + s <- source ""; + b <- Buffer.create; + txt <- source ""; + + return <xml><body onload={onError (fn xml => Buffer.write b (show xml)); + onFail (fn s => alert ("FAIL! " ^ s))}> + <dyn signal={s <- signal s; return <xml>{[s]}</xml>}/><br/> + <dyn signal={s <- signal s; if s = "" then return <xml>Init</xml> else error <xml>Crapky</xml>}/><br/> + <dyn signal={s <- signal s; return <xml>"{[s]}"</xml>}/><br/> + + <ctextbox source={txt}/> <button onclick={s' <- get txt; set s s'; set txt ""}/> + + <hr/> + + <dyn signal={Buffer.render b}/> + </body></xml>