Hi sorry, here is the thing, inside my application an user could
upload documents. Then in some other time if he wants to see any of
this documents he select it from a table and click on a view button on
the selected row. There the AsyncCallback that I've wrote is called,
this makes a local copy of the file in the machine and returns the
path where this local copy was saved.
So now that i wrote some context, I will try to give more information:
1) pdfLink is the path were that local copy of the document is saved.
2) Yes but the thing is that I can't do it outside the callback
because I must be sure that the file is already created and also the
callback is what returns to me that local url where the file is.
Unless I sincronize the asyncronic call but I don't know how to do
that.
3) I'm sure that the link its correct because just for be sure i test
to show it in an alert message and it's ok.
4) I will try with generics but I don't think it's the problem because
this should work on previous versions that doesn't support java 5.
Thanks for the help, any suggestions will be very helpful
Federico.
On Apr 7, 10:13 am, Jason Essington <jason.essing...@gmail.com> wrote:
> O.K.
>
> 1) what is pdfLink? is that supposed to be link?
> 2) if you have any kind of Popup blocker, attempting to open a window
> from the callback will fail. if you want to open a window, it has to
> happen as a direct result of a user action (onClick, etc)
> 3) if link is a path to a filesystem file are you sure it is correct?
> (this is sneaky, but just might work)
>
> 4) Technically not causing a problem but, use generics.
>
> AsyncCallback<String> cb = new AsyncCallback<String>{
> public void onSuccess(String result) ...
>
> }
>
> -jason
>
> On Apr 7, 2009, at 5:04 AM,ffs1985wrote:
>
>
>
> > Hi I'm trying to make a function that let the user download a file
> > from my application and see it. I could copy the file from server to a
> > local root but when I've tried to open it, does it work on hosted mode
> > but in web mode fails always, no matter what browser I try(IE 7,
> > Firefox and Chrome).
> > My code is the next one:
>
> > private void openDocument(String documentName) {
> > final ManagerExportAsync manejador =
> > ManagerExport.Util.getInstance
> > ();
> > AsyncCallback callback = new AsyncCallback(){
> > String link;
> > public void onSuccess(final Object result) {
> > link = (String)result;
> > Window.open(pdfLink,"_blank","");
> > }
> > public void onFailure(Throwable caught){}
> > };
>
> > manejador.openDocument("User",userId, documentName,callback);
> > }
>
> > The String link result is something like this "file///:C:/test.jpg"
> > I don't know what it's wrong. I read somewhere that the problem could
> > be that I'm calling the Window.open inside the callback but I really
> > don't know what is wrong coul someone give me a hand?
>
> > Any suggestions?
> > Thanks!
> > Federico.
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