date:20120605

How to get default loading indicator for DataGrid

2012-06-05 Thread dayanandabv

Hi all,

How to get default loading indicator for DataGrid?
Is Default blinking 3 boxes while loading data is animated image?

I tried to use  Widget defaultWidget =  getLoadingIndicator();
but it gives me null value.

what i want is i need to show static text before the 3 boxes.

i tried overriding setLoadingIndicator  but no help, any help
regarding the same
public void setLoadingIndicator()
{
//giving null value here
Widget defaultWidget =  getLoadingIndicator();
HorizontalPanel hp = new HorizontalPanel();

hp.add(new Label(Please wait loading));
hp.add(defaultWidget);
super.setLoadingIndicator(hp);
}

Thanks in advance
Daya

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Re: Authentification With Selenium

2012-06-05 Thread alaa aadil

hello ,

what i want to do is :
 i want to create an application of monitoring
with GWT , and the first view of this application should be an
Athentification view  of the user .
 when i was searching in the Net , i found that some people suggest
to
use Selenium to do this Authentification part.
i don't know if i can do this witout Selenium , just with GWT ?

please, what do you advice me to use ?
thanks
best regards Adil

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Re: Resubmitting RequestFactory request when server side logic requires it

2012-06-05 Thread Thomas Broyer

On Monday, June 4, 2012 10:17:52 PM UTC+2, Ryan McFall wrote:

I am having issues when I want to resubmit some requests to the server
when the server-side logic indicates it should happen. In particular,
here's what happens:

1. The user logins in, which causes an object (SurveyResponseHeader)
to be created on the server-side, and sent back to the client. edit
is then called on the client side on that object.

2. The user fills in a set of SurveyResponse objects into a list
contained by the SurveyResponseHeader object (and a corresponding
request is made to save the object on the server).

3. The user submits the survey responses, but the session has timed
out on the server. An error code is sent back to the client, and the
user is asked to re-authenticate.

At this point, I want to resubmit the request that caused the error;
it should succeed on the server now because the session has been
restarted. However, I can't use the same request object because I'll
get the request is already in progress error message.

Rather than tell you everything I've tried, I'd like to hear what
people think is the right way to accomplish this. I can provide more
details if needed, but I want to keep the description simple at least
to start.

You have to make sure you convey the session-expiry-error as a transport
error or general failure, and not as a service method return value.
Using the DefaultRequestTransport, any non-200 response from the server
will be a transport error, so handling session expiration from a servlet
filter on the server and responding with a non-200 status code (let's say,
for instance, a 401, or 400; make sure you don't redirect to your login
page though!) should Just Work(tm).
To tell the difference between a real server failure and session expiration
though, you'll have to make your own RequestTransport on the client
(possibly extending DefaultRequestTransport) and define some kind of
protocol (shared knowledge) with the server. Have a look at how it's done
in the MobileWebApp sample in the GWT SDK:
http://code.google.com/p/google-web-toolkit/source/browse/trunk/samples/mobilewebapp/src/main/java/com/google/gwt/sample/gaerequest/
It's
specific to Google AppEngine but is really easy to adapt to whatever you
use. The trick is to make sure you don't set a security-constraint on the
RequestFactoryServlet in your web.xml, and instead handle the absence of
authenticated user from code (in a servlet filter is the easiest)

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