Re: create project component

[Andy Stevko]

Not exactly sure what you are looking for but I'll give it a shot.
You may be looking for how to create a gwt module which can be referenced
by another gwt project.
Here is one way of creating a module which consists of a reusable widget.
http://davidmaddison.blogspot.com/2009/01/creating-gwt-component.html
One detail to be aware of - when you create a jar of the module, be sure to
include both the source and binary files.


On Tue, Jun 5, 2012 at 10:03 PM, thiago borges martins <
tborgesmart...@gmail.com> wrote:

> How do I create a gwt project which are the components (jar) for a web
> project?
>
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===
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Andretti

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Re: How to get default loading indicator for DataGrid

[dayanandabv]

Hi all,

The below code worked

private void setLoadingIndicator(DataGrid grid)
{
VerticalPanel vp = new VerticalPanel();
AbsolutePanel ap = new AbsolutePanel();
Image image = new Image("loadingboxes.gif");
HorizontalPanel hp = new HorizontalPanel();
AbsolutePanel ap1 = new AbsolutePanel();

ap1.setWidth("30px");
hp.add(ap1);
hp.add(image);

ap.setHeight("50px");
vp.add(ap);
vp.add(new Label("Searching Please wait..."));
vp.add(hp);
vp.setSpacing(10);
grid.setLoadingIndicator(vp);
}

On Jun 5, 2:59 am, dayanandabv  wrote:
> 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: synchronized object int GWT

[Ashton Thomas]

You might want to consider the use of synchronized methods when dealing 
with async rpcs request. The blog post linked below shows one use case 
involving synchronized methods

http://www.summa-tech.com/blog/2010/11/29/parallel-asynchronous-calls-in-gwt/

http://www.bennorthrop.com/code/gwt-parallel-async/ParentCallback.java


On Thursday, May 24, 2012 4:22:28 PM UTC-4, Rand wrote:
>
> hello all 
> i am new in GWT ..and i have one question : 
> dose it enabled to apply the concept od synchronized objects java in 
> GWT ?? in way that i can synchronize the client and the server ? 
>
> thank

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create project component

[thiago borges martins]

How do I create a gwt project which are the components (jar) for a web
project?

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Re: 3-tier architecture /gwt

[Thomas Broyer]

On Wednesday, June 6, 2012 1:53:39 AM UTC+2, Juan Pablo Gardella wrote:
>
> Thanks Thomas, but is not what I need. I want to run with dev mode, the 
> RPC services for example. In the way that you say, is not dev mode. I will 
> investigate if exists a way to do this (only if I have all in one module)
>

The archetype is designed to run the server and client code separately, 
side-by-side: run the server code using "mvn jetty:start -Ddev" (or Eclipse 
WTP or Sonatype's M2Eclipse Webby) and run the client code in GWT DevMode 
in -noserver mode (or SuperDevMode).
BTW, SuperDevMode only hosts your client code, so this approach of running 
server and client separately is "future-proof".

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Re: Setting focus on a Anchor button

[Joseph Lust]

Qrunk,

Anchor uses AnchorElement to set its focus, firing the *.focus()* method. 
The anchor tag  has a focus event 
which I was able to observer working in Chrome v19 just using the dev 
console.

What exactly are you expecting to see and what browser you're using it on? 
This issue might be that your browser has not implemented the focus event 
on the anchor element as this is not quite yet a standard behavior.


Sincerely,
Joseph

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Re: 3-tier architecture /gwt

[Juan Pablo Gardella]

Thanks Thomas, but is not what I need. I want to run with dev mode, the RPC
services for example. In the way that you say, is not dev mode. I will
investigate if exists a way to do this (only if I have all in one module)

Cheers,
Juan

2012/6/5 Juan Pablo Gardella 

> Thanks Thomas! I will try it
>
>
> 2012/6/5 Thomas Broyer 
>
>> I'm still looking for the best / most productive way to do it (see
>> https://plus.google.com/113945685385052458154/posts/3VKPRDU2xZz) but you
>> can simply “Run as… → Maven build…” on the server project, and select the
>> "jetty:start" goal with a “dev” property (set to whatever value, “true” is
>> fine); i.e. the exact equivalent to “cd *-server && mvn jetty:start -Ddev”.
>>
>>
>> On Tuesday, June 5, 2012 3:23:18 AM UTC+2, Juan Pablo Gardella wrote:
>>>
>>> Hi,
>>>
>>> I have problems to run the project inside eclipse. I add this to the
>>> parent pom.xml:
>>>
>>> 
>>> org.apache.maven.**plugins
>>>  maven-eclipse-**plugin
>>> 2.9
>>>  
>>> true
>>> true
>>>  ${basedir}/src/main/**resources/META-INF/MANIFEST.MF
>>> 
>>>  
>>> [artifactId]
>>> 
>>>  2.0
>>> ${workspace.path}
>>>  true
>>> 
>>>  
>>>
>>> So, the project is added as a dependency in the eclipse. With this I can
>>> run the *client* module, I change in shared project, refresh the
>>> browser and the changes happens. So I can remove in client module the part
>>> where use build-helper-maven-plugin to add sources. I don't know why, but
>>> in eclipse doesn't found this sources folder.
>>>
>>> The problem that I facing now is, how I can run the server code too
>>> inside eclipse? I want to click on Run -> Web application and run in dev
>>> mode all modules to test server code too.
>>>
>>> If run server module fails because don't found entry module:
>>> Missing required argument 'module[s]'
>>> Google Web Toolkit 2.4.0
>>> DevMode [-noserver] [-port port-number | "auto"] [-whitelist
>>> whitelist-string] [-blacklist blacklist-string] [-logdir directory]
>>> [-logLevel level] [-gen dir] [-bindAddress host-name-or-address]
>>> [-codeServerPort port-number | "auto"] [-server servletContainerLauncher[:
>>> **args]] [-startupUrl url] [-war dir] [-deploy dir] [-extra dir]
>>> [-workDir dir] module[s]
>>>
>>> And if run client module fail because:
>>>
>>> [WARN] 404 - POST /app/greet (127.0.0.1) 1395 bytes
>>>
>>> And in my server module has:
>>>
>>> 
>>> greetServlet
>>> /app/greet
>>>   
>>>
>>> Can someone help me to run inside Eclipse?
>>>
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>>
>
>

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Using the Frame class, and adding Elements to it directly - doesn't display?

[Thomas Broyer]

You're adding your elements as children of the frame, which is used as a 
fallback in case the browser does support frames. You should add them to the 
document that's displayed within the frame.

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Re: Celltable performance issue

[kim young ill]

check out the showcase & this:

https://developers.google.com/web-toolkit/doc/latest/DevGuideUiCellWidgets#data-provider



On Mon, Jun 4, 2012 at 1:23 PM, lucky  wrote:

>
>
> Could you please provide me the sample example for this?
>
>
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Using the Frame class, and adding Elements to it directly - doesn't display?

[King_V]

All,

I've got this very short program, and I don't understand why it's not
working.  I am creating a Frame object, trying to append element
children to it, and while the Frame instance seems to be aware of its
children, they do not get displayed.

Here is what I have.  What am I doing wrong?  When I attach to the
RootPanel, I get a blank rectangular square with nothing in it.
Inspection with Firebug also shows that the head and body elements are
empty.


public class TestFrameAndElement implements EntryPoint {

  public void onModuleLoad() {
Frame frame = new Frame();
Element html = DOM.createElement("html");
Element head = DOM.createElement("head");
Element body = DOM.createElement("body");
Element element = DOM.createElement("div");
element.setInnerHTML("hellogoodbye");
html.appendChild(head);
html.appendChild(body);
body.appendChild(element);
frame.getElement().appendChild(html);
RootPanel.get().add(frame);
System.out.println("Frame children: " +
frame.getElement().getChildCount());
System.out.println("HTML children : " +
frame.getElement().getChild(0).getChildCount());
System.out.println("HEAD children : " +
frame.getElement().getChild(0).getChild(0).getChildCount());
System.out.println("BODY children : " +
frame.getElement().getChild(0).getChild(1).getChildCount());
System.out.println("DIV  children : " +
frame.getElement().getChild(0).getChild(1).getChild(0).getChildCount());
  }
}

I've also noticed that if I do NOT add any elements, there is still an
html/head/body in the Frame section when I inspect with Firebug, but
in the code, the first sysout returns 0 and of course I have to
comment out the rest of the sysout statements.

How do I correctly work with this?

Thanks.

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Re: Firefox 13 DevMode Plugin

[Stefano Ciccarelli]

Thanks.  
I hope you could put it on the official download page because I'm still stuck 
on Firefox 11.  

--  
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Il giorno martedì 5 giugno 2012, alle ore 20:05, Alan Leung ha scritto:  

> If anyone is wondering, I am aware and working on it.
>  
> -Alan
>  
>  
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Re: Firefox 13 DevMode Plugin

[James Wendel]

As always, thanks for the heads up Alan.

On Jun 5, 1:05 pm, Alan Leung  wrote:
> If anyone is wondering, I am aware and working on it.
>
> -Alan

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Firefox 13 DevMode Plugin

[Alan Leung]

If anyone is wondering, I am aware and working on it.

-Alan

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Re: Resubmitting RequestFactory request when server side logic requires it

[Ashwin Desikan]

Thomas is correct. I had tried the route of creating two separate RF's. But 
that involves more work in comparison to annotations. In fact I changed my 
approach post Thomas suggestion in this forum quite sometime bac 

~Ashwin

Sent from my iPhone

On Jun 5, 2012, at 7:38 PM, Thomas Broyer  wrote:

> 
> 
> On Tuesday, June 5, 2012 3:58:22 PM UTC+2, Ryan McFall wrote:
> After I wrote my original follow-up to Thomas' message, I thought of 
> having different services - one for methods that require 
> authentication, and one for those that don't.  Then I can map my 
> ServletFilter to the URL for the service that requires authentication, 
> and not map it to those that don't. 
> 
> That seems easier to me than the annotation route.  Anyone have any 
> reasons to think otherwise?
> 
> It won't work. RequestFactoryServlet loads from the classpath, so unless you 
> somehow constrain the classpath of each servlet to only contain the classes 
> you want to expose, the unauthenticated servlet would be able to load the 
> "services requiring authentication", therefore allowing unauthenticated 
> access to them.
> In other words, that's not how RF has been designed. 
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Re: Resubmitting RequestFactory request when server side logic requires it

[Thomas Broyer]

On Tuesday, June 5, 2012 3:58:22 PM UTC+2, Ryan McFall wrote:
>
> After I wrote my original follow-up to Thomas' message, I thought of 
> having different services - one for methods that require 
> authentication, and one for those that don't.  Then I can map my 
> ServletFilter to the URL for the service that requires authentication, 
> and not map it to those that don't. 
>
> That seems easier to me than the annotation route.  Anyone have any 
> reasons to think otherwise?


It won't work. RequestFactoryServlet loads from the classpath, so unless 
you somehow constrain the classpath of each servlet to only contain the 
classes you want to expose, the unauthenticated servlet would be able to 
load the "services requiring authentication", therefore allowing 
unauthenticated access to them.
In other words, that's not how RF has been designed. 

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Re: Resubmitting RequestFactory request when server side logic requires it

[Ryan McFall]

After I wrote my original follow-up to Thomas' message, I thought of
having different services - one for methods that require
authentication, and one for those that don't.  Then I can map my
ServletFilter to the URL for the service that requires authentication,
and not map it to those that don't.

That seems easier to me than the annotation route.  Anyone have any
reasons to think otherwise?

Ryan

On Jun 5, 8:22 am, Jens  wrote:
> > You can create your own custom annotation (for example : LoggedIn). Apply
> > this on all methods you want to authenticate the user/ session to be
> > validated.
>
> Better do it the opposite way if you only have few methods that are allowed
> for unauthenticated users (I think thats more typically), e.g. create a
> @AllowUnauthenticated annotation and if its absent assume the user must be
> logged in. That way you have few "opt-out" methods instead of many "opt-in"
> methods.
>
> -- J.

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Re: Resubmitting RequestFactory request when server side logic requires it

[Jens]

>
> You can create your own custom annotation (for example : LoggedIn). Apply 
> this on all methods you want to authenticate the user/ session to be 
> validated. 
>

Better do it the opposite way if you only have few methods that are allowed 
for unauthenticated users (I think thats more typically), e.g. create a 
@AllowUnauthenticated annotation and if its absent assume the user must be 
logged in. That way you have few "opt-out" methods instead of many "opt-in" 
methods.

-- J.

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Setting focus on a Anchor button

[Qrunk]

Hi

Can some one help me understand why we can't set focus on Anchor button 
though its a focus-able widget.
We are using Anchor button as a Composite widget wrapped around a 
FlowPanel. We are unable to setFocus(true) on Anchor button.

A sample code on this would be nice. :)

Thanks.

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Re: 3-tier architecture /gwt

[Juan Pablo Gardella]

Thanks Thomas! I will try it

2012/6/5 Thomas Broyer 

> I'm still looking for the best / most productive way to do it (see
> https://plus.google.com/113945685385052458154/posts/3VKPRDU2xZz) but you
> can simply “Run as… → Maven build…” on the server project, and select the
> "jetty:start" goal with a “dev” property (set to whatever value, “true” is
> fine); i.e. the exact equivalent to “cd *-server && mvn jetty:start -Ddev”.
>
>
> On Tuesday, June 5, 2012 3:23:18 AM UTC+2, Juan Pablo Gardella wrote:
>>
>> Hi,
>>
>> I have problems to run the project inside eclipse. I add this to the
>> parent pom.xml:
>>
>> 
>> org.apache.maven.**plugins
>>  maven-eclipse-**plugin
>> 2.9
>>  
>> true
>> true
>>  ${basedir}/src/main/**resources/META-INF/MANIFEST.MF
>> 
>>  
>> [artifactId]
>> 
>>  2.0
>> ${workspace.path}
>>  true
>> 
>>  
>>
>> So, the project is added as a dependency in the eclipse. With this I can
>> run the *client* module, I change in shared project, refresh the browser
>> and the changes happens. So I can remove in client module the part where
>> use build-helper-maven-plugin to add sources. I don't know why, but in
>> eclipse doesn't found this sources folder.
>>
>> The problem that I facing now is, how I can run the server code too
>> inside eclipse? I want to click on Run -> Web application and run in dev
>> mode all modules to test server code too.
>>
>> If run server module fails because don't found entry module:
>> Missing required argument 'module[s]'
>> Google Web Toolkit 2.4.0
>> DevMode [-noserver] [-port port-number | "auto"] [-whitelist
>> whitelist-string] [-blacklist blacklist-string] [-logdir directory]
>> [-logLevel level] [-gen dir] [-bindAddress host-name-or-address]
>> [-codeServerPort port-number | "auto"] [-server servletContainerLauncher[:
>> **args]] [-startupUrl url] [-war dir] [-deploy dir] [-extra dir]
>> [-workDir dir] module[s]
>>
>> And if run client module fail because:
>>
>> [WARN] 404 - POST /app/greet (127.0.0.1) 1395 bytes
>>
>> And in my server module has:
>>
>> 
>> greetServlet
>> /app/greet
>>   
>>
>> Can someone help me to run inside Eclipse?
>>
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Re: Resubmitting RequestFactory request when server side logic requires it

[ashwin.desi...@gmail.com]

Ryan,

You can create your own custom annotation (for example : LoggedIn). Apply
this on all methods you want to authenticate the user/ session to be
validated.

Define your own ApplicationRequestFactoryServlet and
ApplicationServiceLayerDecorators. Override the invoke method under
ServiceLayerDecorator and validate for the presence of @LoggedIn
annotation. If present, check if the user session is valid.

regards
Ashwin



On Tue, Jun 5, 2012 at 4:08 PM, Ryan McFall  wrote:

> Thanks for the ideas, Thomas.
>
> Two questions on the response:
> 1.  I was hoping to detect this within my service method, rather than
> at a higher level like a servlet filter.  Is it possible to return a
> non-200 error code from within the service method?  I tried getting
> the thread local HttpResponse object and changing its status code, but
> this had no effect.
>



>
> 2.  If I do write a servlet filter, there are only certain service
> methods that I want this code to apply to (for example, I use a
> service method, rather than the built in servlet authentication to
> authenticate the user, and I certainly don't want to require a valid
> session during this call).  From what I see in the sample code you
> posted, it looks like that application is doing this on every
> request.  What is the best way to differentiate which service
> method(s) are being called as part of the request?  Are there classes
> available that will help me parse the request payload on the server
> and identify the methods being called?
>
> Ryan
>





>
> On Jun 5, 5:21 am, Thomas Broyer  wrote:
> > 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/sampl...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  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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Re: Resubmitting RequestFactory request when server side logic requires it

[Ryan McFall]

Thanks for the ideas, Thomas.

Two questions on the response:
1.  I was hoping to detect this within my service method, rather than
at a higher level like a servlet filter.  Is it possible to return a
non-200 error code from within the service method?  I tried getting
the thread local HttpResponse object and changing its status code, but
this had no effect.

2.  If I do write a servlet filter, there are only certain service
methods that I want this code to apply to (for example, I use a
service method, rather than the built in servlet authentication to
authenticate the user, and I certainly don't want to require a valid
session during this call).  From what I see in the sample code you
posted, it looks like that application is doing this on every
request.  What is the best way to differentiate which service
method(s) are being called as part of the request?  Are there classes
available that will help me parse the request payload on the server
and identify the methods being called?

Ryan

On Jun 5, 5:21 am, Thomas Broyer  wrote:
> 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/sampl...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  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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Re: SOP, GWT, and XMLHTTPRequest Calls

[zorro]

Dne neděle, 27. května 2012 13:12:41 UTC+2 zorro napsal(a):
>
> I just read the  
> https://developers.google.com/web-toolkit/doc/latest/FAQ_Server after 
> unsuccessful attempt to run local appengine server separately from my GWT 
> junit integration tests of GWT RPC. I am getting SOP error SEVERE: 
> runtimeError: message=[Access to restricted URI denied] 
> sourceName=[injected script] line=[93] lineSource=[null] lineOffset=[0].
>
> Now my question is, is it possible to achieve this somehow?
>
> If not, regarding aforementioned link, can you guys make it possible to 
> set up different hosts not breaking SOP for GWT development? This is 
> possible for Chrome extensions. This feature would make testing much easier 
> for me.
>
>
>

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Re: if use mouse wheel to scroll, the speed is slower?

[Thomas Broyer]

It could be due 
to http://code.google.com/p/google-web-toolkit/issues/detail?id=6167
When dragging the scrollbar thumb, you're not over the CellTable, so it has 
no mouse event to process.

On Tuesday, June 5, 2012 11:30:39 AM UTC+2, tong123123 wrote:
>
> as attached, if I drag the scrollbar in the upper right, the flow is very 
> fluency, but if I use the mouse wheel to scroll, the speed is slower and 
> always has some lags (that is, the scrolling is sometimes slower and 
> sometimes sudden faster, and sometimes not scroll even scroll the mouse 
> wheel)
> what is the problem come from? or it is default behavior of gwt celltable 
> and scrollbar( the upper part is a scrollpanel enclose a celltable)?
>

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Re: GWT JSNI Callback

[Thomas Broyer]

On Tuesday, June 5, 2012 3:42:36 AM UTC+2, zorro wrote:
>
> I am trying to implement a callback using JSNI. 
>  1. I don't know if changing "this" is allowed in the way I do it.
>

No.
BTW, you're not doing much.
 

>  2. I don't know if such an assignment is advisable from the perspective 
> of JSNI functionality
>

No.
 

>  3. The compiler in Eclispe does not seem to grasp that as well and I 
> don't know the right syntax 
>
> for
> this.@com.roamtopix.client.StaticFacad.JsCallback::callback.execute(Lcom/google/gwt/core/client/JavaScriptObject;)(jsObject);
>  with 
> "callback.execute" it says 
> "JavaScript parsing: Missing ) after argument list"
>
> for 
> this.@com.roamtopix.client.StaticFacad.JsCallback::callback::execute(Lcom/google/gwt/core/client/JavaScriptObject;)(jsObject);with
>  
> "callback::execute" it says
> "JavaScript parsing: Invalid label"
>


var callback = this.@com.roamtopix.client.StaticFacad.JsCallback::callback;
callback.@com.roamtopix.client.StaticFacad.JavaCallback::execute(Lcom/google/gwt/core/client/JavaScriptObject;)(jsObject);

But there's simpler.
It depends how you (intend to) use your callback though.
Have a look 
at 
https://code.google.com/p/gwt-in-the-air/source/browse/trunk/src/net/ltgt/gwt/browserplus/core/client/BrowserPlus.java#145
 
(the createNativeCallback method) for a way of wrapping a Java callback 
into a JS function to be passed as a "callback" to some API.

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Re: 3-tier architecture /gwt

[Thomas Broyer]

I'm still looking for the best / most productive way to do it 
(see https://plus.google.com/113945685385052458154/posts/3VKPRDU2xZz) but 
you can simply “Run as… → Maven build…” on the server project, and select 
the "jetty:start" goal with a “dev” property (set to whatever value, “true” 
is fine); i.e. the exact equivalent to “cd *-server && mvn jetty:start 
-Ddev”.

On Tuesday, June 5, 2012 3:23:18 AM UTC+2, Juan Pablo Gardella wrote:
>
> Hi,
>
> I have problems to run the project inside eclipse. I add this to the 
> parent pom.xml:
>
> 
> org.apache.maven.plugins
>  maven-eclipse-plugin
> 2.9
>  
> true
> true
>  ${basedir}/src/main/resources/META-INF/MANIFEST.MF
> 
>  
> [artifactId]
> 
>  2.0
> ${workspace.path}
>  true
> 
>  
>
> So, the project is added as a dependency in the eclipse. With this I can 
> run the *client* module, I change in shared project, refresh the browser 
> and the changes happens. So I can remove in client module the part where 
> use build-helper-maven-plugin to add sources. I don't know why, but in 
> eclipse doesn't found this sources folder.
>
> The problem that I facing now is, how I can run the server code too inside 
> eclipse? I want to click on Run -> Web application and run in dev mode all 
> modules to test server code too.
>
> If run server module fails because don't found entry module:
> Missing required argument 'module[s]'
> Google Web Toolkit 2.4.0
> DevMode [-noserver] [-port port-number | "auto"] [-whitelist 
> whitelist-string] [-blacklist blacklist-string] [-logdir directory] 
> [-logLevel level] [-gen dir] [-bindAddress host-name-or-address] 
> [-codeServerPort port-number | "auto"] [-server 
> servletContainerLauncher[:args]] [-startupUrl url] [-war dir] [-deploy dir] 
> [-extra dir] [-workDir dir] module[s] 
>
> And if run client module fail because:
>
> [WARN] 404 - POST /app/greet (127.0.0.1) 1395 bytes
>
> And in my server module has:
>
> 
> greetServlet
> /app/greet
>   
>
> Can someone help me to run inside Eclipse? 
>

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Re: Resubmitting RequestFactory request when server side logic requires it

[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  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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Re: Authentification With Selenium

[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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