from:"lineman78"

It is not possible to convert POJO to XML without using some sort of
library, but Jersey does have the ability to do JSON.  I use JAXB to
generate my server side classes and JAX-RS to marshal to XML and JSON
depending on the Accepts header.  This is fairly easy to do using a
services context resolver annotated with provider and consumes/
produces application/json.  I then have written a generator(no I can't
provide it, but it is possible) so that I can write an interface for a
POJO and it will generate the overlay type for me, but if you are
working on a smaller project manually writing the overlay types is the
best solution.

On Jul 15, 8:27 am, chris chris.hins...@gmail.com wrote:
 Thank you for the advice and it appears that this would work for
 server but not for client marshalling. I have been investigating a way
 to use JAXB to marshall soap requests on the client side but have not
 found a way as of yet. I would love to get rid of soap all together
 but unfortunately that will not be possible. Has anyone found a way to
 marshall the POJO to XML on the client?

 Thanks,
 Chris Hinshaw

 On Jul 15, 1:27 am, Frederic Conrotte frederic.conro...@gmail.com
 wrote:

  There is no problem in using JAXB along with GWT.

  See this thread for 
  explanations:http://code.google.com/p/google-web-toolkit/issues/detail?id=4020q=J...

  On Jul 15, 2:57 am, Shyam Visamsetty shyamsunder...@gmail.com wrote:

   I think you cannot use JAXB with GWT. JAXB uses a lot of classes which
   GWT cant compile. So, you may not be able to use it. You can use the
   standard xml packages that come with GWT.

   Thanks,
   Shyam Visamsetty.

   On Jul 14, 8:29 am, Alberto Rugnone arugnonechemi...@gmail.com
   wrote:

Hi all,
I have to use classes with jaxb annotation on client side, but GWT
compiler refuse to work throwing following exception

No source code is available for type javax.xml.namespace.QName
 No source code is available for type javax.xml.bind.JAXBElementT

etc...

someone can help me

Thank you very much in advanced

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Re: is there any json parser that can parse UTF-8 json text

Jersey is a project for implementing REST services, but would probably
be overkill for your situation.  You could simply write a servlet with
a doGet method if you are handling any marshaling yourself.  The
Jersey project allows you to expose methods to specific URLs and any
marshaling/unmarshaling is handled under the covers by these things
called providers.  It is intended to be used with JAXB to write an XSD
from which you generate POJOs with JAXB and Jersey serializes them to
XML, but custom providers can also serialize to JSON or you can write
custom message body writers for your own protocol.  For the simple
case you are talking about I would just write a class that extends
HttpServlet and overrides the doGet method and writes to the response
directly.

http://www.javafaq.nu/java-example-code-1022.html

On Jul 15, 1:05 am, Alex monsterno...@gmail.com wrote:
 for client side i have alwasy use
 com.google.gwt.json.client.JSONParser without any problem.

 its for my server side.

 im not trying to convert the json string into java class, but rather i
 just need to send the string representation of a json object that was
 extracted from a json array to client side.

 so its like i have a txt file that contains json array, inside the
 array has many json object, i just need to randomly pick any one of
 the json object in that array and send it to client app.

 does the jersey project thingy able to do that?

 On Jul 15, 2:39 am, lineman78 linema...@gmail.com wrote:

  I use overlay types via the javascript JSON.parse method for the
  client side, which is available in newer browsers and you need to
  include json2.js for older browsers(eval is also an alternative).  For
  server side, I suggest using the Jersey project with a JSON context
  provider as shown here:

 http://blogs.sun.com/enterprisetechtips/entry/configuring_json_for_re...

  On Jul 14, 7:56 am, Jaroslav Záruba jaroslav.zar...@gmail.com wrote:

   Have you tried these?
   for server-side (GAE)
   *com.google.appengine.repackaged.org.json.JSONObject.JSONObject(String
   arg0)*
   for client *com.google.gwt.json.client.JSONParser*

   I haven't tried japanese or chinese characters though, rather stuff like
   this: Pøíli¹ ¾lu»ouèký kuò úpìl ïábìlské ódy

   On Wed, Jul 14, 2010 at 3:43 PM, Alex monsterno...@gmail.com wrote:
i tried gson, but it give me error.
this is the code i used

public class Test {
       private static final String charEncoding=UTF-8;

       private static final String fileName=c:\\test.txt;
       public static void main(String args[]){
               try{
                       File file=new File(fileName);
                       if(file.canRead()){
                               FileInputStream inStream=new
FileInputStream(file);
                               InputStreamReader reader=new
InputStreamReader(inStream,
charEncoding);
                               JsonParser parser=new JsonParser();
                               JsonElement jsonA=parser.parse(new
BufferedReader(reader));
                               System.out.println(jsonA.isJsonArray());
                               System.out.println(jsonA.toString());
                       }
               }catch(IOException e){
                       e.printStackTrace();
               }
       }

}

the jar from json.org dun work too.

so is there any json parser that can parse UTF-8 json text (japanese
and chinese character in particular)

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Re: Caution: SmartGwt loadup size is big

SmartGWT is only a GWT wrapper on a javascript library so it is
expected that you would have this problem.  If you can stand the
licensing, GXT is supposed to be a pure GWT implementation of their
javascript library, so unused portions of the library are not
included.  Due to licensing I have not used it, so I can't speak to
it's effectiveness.  The best solution would be to try and find a
project that has the specific widget you want without the overhead.

On Jul 14, 5:22 pm, mk munna.kaka.ch...@gmail.com wrote:
 We have a tiny widget from SmartClient's SmartGwt. And it had
 increased the intial loadup size between webserver and browser by 2.3MB
 +.( js, css)

 Thus be cautious if you think this can hamper performance.

 (If anybody has solution to above than plz share ).

 FYI: We do changed header of script to cache all SmartClient's scripts
 forever.

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Re: GWT Navigation Problem

Look at the history api

On Jul 14, 4:16 pm, Ahmed Shoeib ahmedelsayed.sho...@gmail.com
wrote:
 Hi all ,
 i face a problem With Navigation .

 now i have multiple panel added to the RootPanel ( clear the panel and
 add the next panel )

 now i want to support next  back for these panels

 how i can do it ???

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Re: JAXB GWT How I can use JAXB generated classes on client side

Personally, I prefer to use Jersey vs GWT RPC because it is more
flexible and exposes standard interfaces.  For instance, in our group
there are both Java and C# guys, so if our webservices have the
ability to support multiple standards everyone can use them.  I have
Jersey set up so that depending on the Accept header it will serve
your either XML, JSON or Java serialization.  Also, with very little
work I can also create SOAP services.  I think GWT-RPC is a very nice
protocol and is nice for people on small project or don't have to
worry about flexability or external interfaces and have complete
control of all design decisions in their project, but when you are
working in large groups where you don't always have a say in all
potential interfaces, then it is better to just use open standards.  I
have done a few personal GWT projects where I have used RPC, so I am
not against it by any means.

On Jul 15, 12:10 pm, David Vree david.h.v...@gmail.com wrote:
 I don't want to hijack your thread, but I am new to this and am
 wondering why you don't use GWT-RPC to do the client/server
 communication?

 On Jul 15, 12:40 pm, lineman78 linema...@gmail.com wrote:

  It is not possible to convert POJO to XML without using some sort of
  library, but Jersey does have the ability to do JSON.  I use JAXB to
  generate my server side classes and JAX-RS to marshal to XML and JSON
  depending on the Accepts header.  This is fairly easy to do using a
  services context resolver annotated with provider and consumes/
  produces application/json.  I then have written a generator(no I can't
  provide it, but it is possible) so that I can write an interface for a
  POJO and it will generate the overlay type for me, but if you are
  working on a smaller project manually writing the overlay types is the
  best solution.

  On Jul 15, 8:27 am, chris chris.hins...@gmail.com wrote:

   Thank you for the advice and it appears that this would work for
   server but not for client marshalling. I have been investigating a way
   to use JAXB to marshall soap requests on the client side but have not
   found a way as of yet. I would love to get rid of soap all together
   but unfortunately that will not be possible. Has anyone found a way to
   marshall the POJO to XML on the client?

   Thanks,
   Chris Hinshaw

   On Jul 15, 1:27 am, Frederic Conrotte frederic.conro...@gmail.com
   wrote:

There is no problem in using JAXB along with GWT.

See this thread for 
explanations:http://code.google.com/p/google-web-toolkit/issues/detail?id=4020q=J...

On Jul 15, 2:57 am, Shyam Visamsetty shyamsunder...@gmail.com wrote:

 I think you cannot use JAXB with GWT. JAXB uses a lot of classes which
 GWT cant compile. So, you may not be able to use it. You can use the
 standard xml packages that come with GWT.

 Thanks,
 Shyam Visamsetty.

 On Jul 14, 8:29 am, Alberto Rugnone arugnonechemi...@gmail.com
 wrote:

  Hi all,
  I have to use classes with jaxb annotation on client side, but GWT
  compiler refuse to work throwing following exception

  No source code is available for type javax.xml.namespace.QName
   No source code is available for type javax.xml.bind.JAXBElementT

  etc...

  someone can help me

  Thank you very much in advanced

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Re: Eclipse debugger not running in hosted mode?

Are you running in the embedded server?

On Jul 15, 2:05 pm, David Vree david.h.v...@gmail.com wrote:
 I have tried to use the Eclipse debugger with the sample application
 in hosted mode, so I know it works.  But in my own application (a
 multi-module maven project) the stop point I put on OnModuleLoad isn't
 triggering.

 I've tried many different things.  Any ideas?

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Re: Eclipse debugger not running in hosted mode?

You have to make sure you start it with Debug As not Run As

On Jul 15, 8:20 pm, David Vree david.h.v...@gmail.com wrote:
 I believe so, but I don't know how to tell for sure.  I can tell you
 that the Development Mode tab in Eclipse gets focus, and provides me
 the following URL:

 http://127.0.0.1:/index.html?gwt.codesvr=127.0.0.1:9997

 When I put that URL in the browser the app runs.  But no stopping from
 within Eclipse!

 On Jul 15, 8:38 pm, lineman78 linema...@gmail.com wrote:



  Are you running in the embedded server?

  On Jul 15, 2:05 pm, David Vree david.h.v...@gmail.com wrote:

   I have tried to use the Eclipse debugger with the sample application
   in hosted mode, so I know it works.  But in my own application (a
   multi-module maven project) the stop point I put on OnModuleLoad isn't
   triggering.

   I've tried many different things.  Any ideas?

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Re: Mixed content warning on Chrome (skull and bones)

I believe this is expected behavior, even gmail does this if you have
https turned on.  What is keeping you from using https for loading the
js?  The browser doesn't know that the request you are sending doesn't
contain any sensitive data, therefore this is a desired behavior as
usually there is not real reason not to make a request once an SSL
session has been established because at that point a symmetric block
cipher is used which has very little overhead.

On Jul 14, 10:17 am, Danny Goovaerts danny.goovae...@gmail.com
wrote:
 I've deployed my GWT application over https. To allow caching of the
 javascript files, I load the bootstrap script over http :

 script language=javascript src=http://www.cellamea.eu/cellamea/
 cellamea.nocache.js/script

 As expected, this gives amixed content warning on Internet Explorer.
 On Firefox and Safari, the site loads normally.
 On Chrome (version 6.0.458.1 dev) however, I get a red skull and
 bones icon in the URL address bar instead of the green padlock icon.
 I think that this is even more scary for the users than the mixed
 content warning on IE.

 Is this the expected behaviour on Chrome or do should I do something
 different?

 Thanks in advance,

 Danny

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Re: is there any json parser that can parse UTF-8 json text

I use overlay types via the javascript JSON.parse method for the
client side, which is available in newer browsers and you need to
include json2.js for older browsers(eval is also an alternative).  For
server side, I suggest using the Jersey project with a JSON context
provider as shown here:

http://blogs.sun.com/enterprisetechtips/entry/configuring_json_for_restful_web

On Jul 14, 7:56 am, Jaroslav Záruba jaroslav.zar...@gmail.com wrote:
 Have you tried these?
 for server-side (GAE)
 *com.google.appengine.repackaged.org.json.JSONObject.JSONObject(String
 arg0)*
 for client *com.google.gwt.json.client.JSONParser*

 I haven't tried japanese or chinese characters though, rather stuff like
 this: Příliš žluťoučký kuň úpěl ďábělské ódy

 On Wed, Jul 14, 2010 at 3:43 PM, Alex monsterno...@gmail.com wrote:
  i tried gson, but it give me error.
  this is the code i used

  public class Test {
         private static final String charEncoding=UTF-8;

         private static final String fileName=c:\\test.txt;
         public static void main(String args[]){
                 try{
                         File file=new File(fileName);
                         if(file.canRead()){
                                 FileInputStream inStream=new
  FileInputStream(file);
                                 InputStreamReader reader=new
  InputStreamReader(inStream,
  charEncoding);
                                 JsonParser parser=new JsonParser();
                                 JsonElement jsonA=parser.parse(new
  BufferedReader(reader));
                                 System.out.println(jsonA.isJsonArray());
                                 System.out.println(jsonA.toString());
                         }
                 }catch(IOException e){
                         e.printStackTrace();
                 }
         }

  }

  the jar from json.org dun work too.

  so is there any json parser that can parse UTF-8 json text (japanese
  and chinese character in particular)

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Re: How can i debug an GWT application in IE 7?

There are a few options.  There is the new IE developer toolbar:

http://www.microsoft.com/downloads/details.aspx?familyid=e59c3964-672d-4511-bb3e-2d5e1db91038displaylang=en

The other option is to compile detailed and get the line number and
browse to it using VIM(don't use notepad, large files tend to freeze
your computer, download GVIM).  This method has been successful for me
in the past.

On Jul 13, 11:23 pm, nacho vela.igna...@gmail.com wrote:
 I'm getting an error in the generated js in my app running on ie7.

 And all i get in the ie console is Argument not valid an the line of
 the script that is causing the trouble: 44756 :P

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Re: Mixed content warning on Chrome (skull and bones)

Agreed, I had not thought of the caching issue, although this could
also be fixed by having your server set the cache-control header to
public when serving static content(doesn't work in FF2).  An example
of how to do this can be seen here:

http://onjava.com/pub/a/onjava/2004/03/03/filters.html

While I agree that the icon may be a little scary to uninformed users,
I think it is probably better that way for the reasons I specified
before.  At the same time, I wish both IE and Chrome would specify
which parts of the page are not secure so that advanced users can know
if there is something fishy going on.  Just last night I had 2 of my
friends who are very non-technical ask me about security when it comes
to using free wifi.  They have no clue what SSL is and it is much
easier for me to tell them to not put in any sensitive information
unless there is a lock icon on their screen.  In your purposes you are
only loading javascript that has not data through an unencrypted
connection, but what is to keep you from doing jsonp and sending
unencrypted data, which from the browsers perspective looks exactly
the same, loading a javascript file.  But from the users perspective
one is sending personal information over an unencrypted connection and
they should be notified because it is fairly serious.

On Jul 14, 1:51 pm, Danny Goovaerts danny.goovae...@gmail.com wrote:
 I'm not worried about the overhead for the encryption. I want to load
 the js over http because browsers do not cache content  that is loaded
 over https. As my application is fairly large (800k, split into
 several deferred pieces, some of which are 200k) I want to have it
 cached as much as possible. This is not such an issue when using the
 application over Wifi, but it can be an issue when using it on mobile
 devices, provided they that they do caching of decent sized components
 (seehttp://www.yuiblog.com/blog/2010/06/28/mobile-browser-cache-limits/
 ).

 I'd just whish that Google had picked another icon than the red skull
 and bones.

 On 14 jul, 20:30, lineman78 linema...@gmail.com wrote:

  I believe this is expected behavior, even gmail does this if you have
  https turned on.  What is keeping you from using https for loading the
  js?  The browser doesn't know that the request you are sending doesn't
  contain any sensitive data, therefore this is a desired behavior as
  usually there is not real reason not to make a request once an SSL
  session has been established because at that point a symmetric block
  cipher is used which has very little overhead.

  On Jul 14, 10:17 am, Danny Goovaerts danny.goovae...@gmail.com
  wrote:

   I've deployed my GWT application over https. To allow caching of the
   javascript files, I load the bootstrap script over http :

   script language=javascript src=http://www.cellamea.eu/cellamea/
   cellamea.nocache.js/script

   As expected, this gives amixed content warning on Internet Explorer.
   On Firefox and Safari, the site loads normally.
   On Chrome (version 6.0.458.1 dev) however, I get a red skull and
   bones icon in the URL address bar instead of the green padlock icon.
   I think that this is even more scary for the users than the mixed
   content warning on IE.

   Is this the expected behaviour on Chrome or do should I do something
   different?

   Thanks in advance,

   Danny

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Re: TablayoutPanel - how to align tabs on right (top)

2010-07-13 Thread lineman78

As far as I can tell, there is no official way to do this, and there
is no way to do it in CSS due to the layout being set directly on the
elements.  I have developed a bit of a workaround but this could be
broken by subsequent GWT releases as they make changes to the way the
tab panel lays itself out.  This is only a partial solution, but you
can take the idea and run with it.  If you are dynamically adding tabs
you will need to change the float when they are created.

public TabPanelRight()
{
// INIT TABS HERE

// set the tab divs to float:right instead of float:left
for (Element el:getChildElementsWithClass(tabPanel.getElement(),
gwt-TabLayoutPanelTab))
el.setAttribute(style, float:right;);

// clearing left gets overriden by the layout, there is probably a
better way to do this
tabPanel.setVisible(false);
DeferredCommand.addCommand(new Command(){
@Override
public void execute()
{
getChildElementsWithClass(tabPanel.getElement(), gwt-
TabLayoutPanelTabs).get(0).getStyle().clearLeft();
tabPanel.setVisible(true);
}});
}

private ListElement getChildElementsWithClass(Element parent, String
styleClass)
{
ListElement toReturn = new ArrayListElement();
NodeListNode children = parent.getChildNodes();
for (int i = 0; i  children.getLength(); i++)
{
Node child = children.getItem(i);
if (child.getNodeType() == Node.ELEMENT_NODE)
{
for (String className:
((Element)child).getAttribute(class).split( ))
if (className.equals(styleClass))
toReturn.add((Element)child);
 
toReturn.addAll(getChildElementsWithClass((Element)child,
styleClass));
}
}
return toReturn;
}

On Jul 13, 9:49 am, Trevis trevistho...@gmail.com wrote:
 I would also like to know the answer to this question.  My ui drafts
 are mocked that way.  I figured that by the time I got around to doing
 layout that I'd stumble into the answer.  I have t dug I to it myself
 yet but I am geting close to needing to know.  I'm sure that I could
 just change the standard.css file but I hope that there is an
 official  way to do this.

 On Jul 12, 2:48 pm, Akshay Kumar kumar.aks...@gmail.com wrote:

  Hi,
  I assume, by rtl, you meant right-to-left. Then, no, my UI designer gave me
  this design to have the tab-headers on the right.
  I do not want to go back to UI-designer that its not possible, unless I have
  tried my options.
  thanks,
  Tkshay

  On 13 July 2010 00:19, Stefan Bachert stefanbach...@yahoo.de wrote: Hi,

   Did you want  to support a rtl language?
   When yes, try to switch to it.
   Some widget support it.

   Stefan Bachert
  http://gwtworld.de

   On 11 Jul., 13:46, Akshay  Kumar kumar.aks...@gmail.com wrote:
I am using TabLayoutPanel (in UiBinder xml), and the tab handles
( headers) are by default on top-left. Cant seem to figure out any api
option to align the tab-headers on the top-right. I tried TabPanel
also but without any luck.

something like this:

[ Tab1 ]_[ Tab2 ]_[ Tab3 ]_
|
|
|
|
|
|
|
|
|
|
|_|

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Re: Deploy static content in Webserver and Dynamic in App server

2010-07-13 Thread lineman78

Please be more specific on the form of communication you would like to
do and how you are handling the DNS for having 2 servers handling
requests(i.e. different subdomains, ports, etc.).  Remember, because
of the SOP you can only make data requests to the same server and port
the page originated from, unless you are willing to play around with
JSONP.

On Jul 13, 6:24 pm, my explo...@gmail.com wrote:
 I am trying to deploy an application built with GWT.  Would like to
 know how to create a build so that I can deploy static content on the
 Webserver and dynamic content on app server.

 I use Websphere(App Server),  IBM Httpd server(Webserver).

 Please do not suggest me that I can put all into one war file and
 deploy into App Server. My real question is separation of duties
 between Web  App Server.

 Thanks in Advance for the support.
 -MY

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Re: difference in alignment on different browsers

2010-07-12 Thread lineman78

Sorry for the late response,

align is not a valid css property, use text-align:left;

On Jul 10, 11:31 pm, Vik vik@gmail.com wrote:
any help on this plz...

Thankx and Regards

Vik
Founderwww.sakshum.comwww.sakshum.blogspot.com

On Fri, Jul 9, 2010 at 10:35 AM, Vik vik@gmail.com wrote:
hie

thanks looks helpful...

The firebug shows following layout

td align=center
fieldset

table

clogroup/colgroup
tbody
.
.
.
and so on /tbody

in firebug i add align=left to tbody then it fixes the issue.

However, in css if add following it doesn't work:
fieldset table tbody {
align: left;
}

any advise plz

Thankx and Regards

Vik
Founder
www.sakshum.com
www.sakshum.blogspot.com

On Thu, Jul 8, 2010 at 9:40 PM, lineman78 linema...@gmail.com wrote:

IE seems to be inheriting the align=center from the parent td. the
simple way is to add align=left on the form table, but you could add
it to each cell individually using the cell formatter. Depending on
the GWT panels you are using there are multiple different ways to
solve this. Essentially the difference is inheritance in IE vs Gecko/
Webkit.

On Jul 8, 9:43 am, Vik vik@gmail.com wrote:
Hie

Check out pleasehttp://
1.latest.sakshumweb20.appspot.com/ui/page/DonorRegister.jsp

and notice the alignment of fields in IE Vs chrome/firefox

The one coming in chrome or firefox is the desired one. So how to fix it
for
IE? And I thought i dont need to take care cross browser stuff using gwt

Thankx and Regards

Vik
Founderwww.sakshum.comwww.sakshum.blogspot.com

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Re: Passing data between modules - MVP architecture

2010-07-12 Thread lineman78

May I also suggest that you look at an approach based on GWT exporter
so you can make calls between the modules directly.  I have been
playing around with making a GWT based plugable portal architecture
based on this approach and have been partially successful in my
limited experimentation.

On Jul 9, 9:35 am, grandanat marian.strug...@gmail.com wrote:
 Hello all.
 I Have a simple scenario:
 -a GWT application with an application controller that handles history
 and initialize modules. ( a module is an entity formed by a presenter
 + view - classic MVP, nothing special)
 -from a module should be opened another module and pass init data to
 it, and then after child module finishes its job to return another
 response data.

 I followed two approaches and i would like to comment them.

 1.eventBuss approach - pass data within events.
 i have StartChildModuleEvent event that encapsulates a module parent
 ID, and some init data, and an ExitChildModuleEvent event that
 encapsulates some return data.

 2 callback approach.
 i added to my modules a callBack handler

 public abstract class ModuleCallBackHandlerD, T implements
 DataCallBackHandlerT {

   private ModuleID parentID;

   private D initData;
   private T returnData;

   public ModuleCallBackHandler(ModuleID parentID) {
     this.parentID = parentID;
   }

   public ModuleCallBackHandler(ModuleID parentID, D initData) {
     this.parentID = parentID;
     this.initData = initData;
   }

   public void onCancel(){
   }

   public void onFailure(Throwable caught){
     Window.alert(AppGin.injector.getAppConstants().msg_moduleError() +
  :  + caught.getMessage());
 //    caught.printStackTrace();
   }

   public ModuleID getParentID() {
     return parentID;
   }

   public D getInitData() {
     return initData;
   }

   public T getReturnData() {
     return returnData;
   }

 }

 and when i want to init a child module i instantiate a new callback

 AppGin.injector.getAppController().doStartChildModule(ModuleID.ITEMSEARCH,
             new ModuleCallBackHandlerString, Item(getModuleID(),
 itemID) {

               @Override
               public void onSuccess(Item result) {
                 //do some stuff - update this module with received
 data
               }

             });

 I would like some opinions regarding this two approaches.

 Thanks all

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Re: How to get the loading symbol while the application is loading in gwt 2.0.3

2010-07-09 Thread lineman78

You will need to implement it in html and hide it once the application
loads.  You might have to move the script tag out of the head to the
bottom of the body to allow it to paint the page before fetching.

On Jul 9, 2:44 pm, gourineni rakesh rg...@msstate.edu wrote:
 Hi,
    I am using gwt 2.0.3 in an Eclipse project. When I run the java code in
 eclipse I get the url n by pasting it in the web browser I need to wait for
 some time to get the application.So I need to get The application is
  loading while I wait for the appliocation to load .  I have no idea how to
 do this plz help me.
   thanls in advance.

 Regards,
 Rakesh.

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Re: Shared CSS

2010-07-09 Thread lineman78

Yeah, all you need is a simple EntryPoint class that just calls
StyleInjector.injectCss in the onModuleLoad method.

On Jul 8, 8:48 pm, Hethcox heth...@gmail.com wrote:
 Thanks for all the great suggestions. The shared library has a gwt.xml
 file but is not an EntryPoint. Can I just pick a class in the library
 and have it implement EntryPoint to get the shared CSS loaded?

 To answer the other follow-up questions, I am deploying each app as a
 separate war file. All of the styles are set through code, so the
 class names can be obfuscated.

 John

 On Jul 8, 6:25 pm, lineman78 linema...@gmail.com wrote:



  There are many possible solutions for the generic problem you face.
  You will need to be more specific about your final deployment
  architecture if you would like a more specific answer of which is
  best.  Are these GWT apps all going to be deployed within the same
  WAR? EAR? Separate EARs?  Is the only thing referencing these classes
  GWT objects, or do the class names need to remain unobfuscated?  If
  you are willing to go through using a CssResource and obfuscating the
  class names I would suggest creating a common module and inherit the
  module whenever you need to use the classes.  In the entry point for
  the common module you would inject the style.  If the css must remain
  unobfuscated, it depends on your final deployment.  If they are in
  different WARs, then I would again create a common module, but add a
  public path to the module so that if you inherit the module it will
  write the script to it:

  module
      inherits name=com.google.gwt.user.User /
      source path=client/
      public path=www/
      stylesheet src=Library.css/
      entry-point
  class=com.ams.common.client.gwt.client.CommonEntryPoint/
  /module

  Put the file Library.css into com/ams/common/client/gwt/www

  If they are all in 1 WAR, the best method would be to manually copy
  the file to the WAR root and add the link to your html files.

  On Jul 7, 10:27 am, Hethcox heth...@gmail.com wrote:

   Hello,
   I have a GUI library that is used by several GWT apps. I would like
   the widgets in the library to use a standard sets of CSS classes from
   the library so that they don't have to be copied and maintained in the
   apps that  use the library. The library is deployed as a jar
   currently, but that can change.

   I've read a lot of posts on this topic, but none of them seems to do
   the trick. My target platform is JBoss and the closest solution I've
   found so far is to put the library CSS file in ROOT.war/css at deploy-
   time. Is there a build-time trick to get the GWT apps to deploy the
   CSS file when it cross-compiles the library widgets?

   Cheers,
   John

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Re: difference in alignment on different browsers

2010-07-08 Thread lineman78

IE seems to be inheriting the align=center from the parent td.  the
simple way is to add align=left on the form table, but you could add
it to each cell individually using the cell formatter.  Depending on
the GWT panels you are using there are multiple different ways to
solve this.  Essentially the difference is inheritance in IE vs Gecko/
Webkit.

On Jul 8, 9:43 am, Vik vik@gmail.com wrote:
 Hie

 Check out 
 pleasehttp://1.latest.sakshumweb20.appspot.com/ui/page/DonorRegister.jsp

 and notice the alignment of fields in IE Vs chrome/firefox

 The one coming in chrome or firefox is the desired one. So how to fix it for
 IE? And I thought i dont need to take care cross browser stuff using gwt

 Thankx and Regards

 Vik
 Founderwww.sakshum.comwww.sakshum.blogspot.com

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Re: Shared CSS

2010-07-08 Thread lineman78

There are many possible solutions for the generic problem you face.
You will need to be more specific about your final deployment
architecture if you would like a more specific answer of which is
best.  Are these GWT apps all going to be deployed within the same
WAR? EAR? Separate EARs?  Is the only thing referencing these classes
GWT objects, or do the class names need to remain unobfuscated?  If
you are willing to go through using a CssResource and obfuscating the
class names I would suggest creating a common module and inherit the
module whenever you need to use the classes.  In the entry point for
the common module you would inject the style.  If the css must remain
unobfuscated, it depends on your final deployment.  If they are in
different WARs, then I would again create a common module, but add a
public path to the module so that if you inherit the module it will
write the script to it:

module
inherits name=com.google.gwt.user.User /
source path=client/
public path=www/
stylesheet src=Library.css/
entry-point
class=com.ams.common.client.gwt.client.CommonEntryPoint/
/module

Put the file Library.css into com/ams/common/client/gwt/www

If they are all in 1 WAR, the best method would be to manually copy
the file to the WAR root and add the link to your html files.

On Jul 7, 10:27 am, Hethcox heth...@gmail.com wrote:
 Hello,
 I have a GUI library that is used by several GWT apps. I would like
 the widgets in the library to use a standard sets of CSS classes from
 the library so that they don't have to be copied and maintained in the
 apps that  use the library. The library is deployed as a jar
 currently, but that can change.

 I've read a lot of posts on this topic, but none of them seems to do
 the trick. My target platform is JBoss and the closest solution I've
 found so far is to put the library CSS file in ROOT.war/css at deploy-
 time. Is there a build-time trick to get the GWT apps to deploy the
 CSS file when it cross-compiles the library widgets?

 Cheers,
 John

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Re: gson module problem

2010-07-07 Thread lineman78

The easiest way to convert between JSON and GWT objects is to use
overlay objects.  Unfortunately, there is no type checking by doing
this, but you get the best performance.  Now, if you need to support
older versions of IE you will need to include json2.js in your
project, but you can use the JSON.parse and JSON.stringify functions
to convert between javascript objects and a JSON string.

http://code.google.com/p/google-web-toolkit/wiki/OverlayTypes


On Jul 7, 10:41 am, Ahmed Shoeib ahmedelsayed.sho...@gmail.com
wrote:
 i need to convert JSON to/From Java Object

 how to do it ?
 i don't know how to use this way

 On Jul 6, 10:35 pm, eggsy84 jimbob...@hotmail.com wrote:

  Hi all,

  With the latest versions of GWT you don't have to use any other
  libraries.

  GWT now comes with something known as Javascript Overlays that you can
  utilise to convert JSON into Objects.

  See here:

 http://code.google.com/webtoolkit/doc/latest/DevGuideCodingBasicsOver...

  Also I have made a bit of a discussion on my blog here:

 http://eggsylife.co.uk/2010/04/22/gwt-2-jsonp-and-javascript-overlays...

  Hope this helps,

  Eggsy

  On Jul 6, 1:38 pm, Harald Pehl harald.p...@googlemail.com wrote:

   You cannot use gson in GWT. 
   Seehttp://groups.google.com/group/google-gson/browse_thread/thread/6c3d6...
   for more infos.

   If you need a JSON parser for GWT take a look at Piriti (http://
   code.google.com/p/piriti/).

   - Harald

   On 6 Jul., 12:30, Ahmed Shoeib ahmedelsayed.sho...@gmail.com wrote:

Welcome ,

i add gson lib version 1.4

and i face a problem when trying to inherit it in the gwt.xml file

how i can fix this problem ???

thanks ,
ahmed shoeib

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Re: gson module problem

2010-07-07 Thread lineman78

Looks like you are using client side code on the server.  You need to
make sure you have a clear understanding of how you are handling
communications.  It looks to me that you have JSNI is a server class.
Remember, anything that has a nitave method cannot be loaded by the
server unless that native method is JNI not JSNI.  My preferred method
of communication is to use Jersey(JAX-RS) for the server-side JSON
generation and use the RequestBuilder/OverlayType method for the
client side.  This is not the only way to do this, this is just the
method that I have chosen to use the most modular and open approach.
If you are only going to be communicating back and forthe between your
own application, why not use GWT's RPC.  But if you are set on JSON, I
would suggest not writing any client code first, just the server and
use your browser to access the webservice and ensure that you are
indeed getting the expected JSON, then once you have verified that you
can use RequestBuilder to access the same URL and get the JSON as a
string at which point you can process it into an overlay type and use
it within GWT.

On Jul 7, 5:05 pm, Ahmed Shoeib ahmedelsayed.sho...@gmail.com wrote:
 The Problem line

 java.lang.UnsatisfiedLinkError:
 com.apphuset.eventbuddy.server.MembersServiceImpl.asArrayOfMember_JSON(Ljava/
 lang/String;)Lcom/google/gwt/core/client/JsArray;
         at
 com.apphuset.eventbuddy.server.MembersServiceImpl.asArrayOfMember_JSON(Native
 Method)
         at
 com.apphuset.eventbuddy.server.MembersServiceImpl.doPost(MembersServiceImpl.java:
 43)
         at javax.servlet.http.HttpServlet.service(HttpServlet.java:713)
         at javax.servlet.http.HttpServlet.service(HttpServlet.java:806)
         at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:
 511)
         at org.mortbay.jetty.servlet.ServletHandler
 $CachedChain.doFilter(ServletHandler.java:1166)
         at
 com.google.appengine.api.blobstore.dev.ServeBlobFilter.doFilter(ServeBlobFilter.java:
 51)
         at org.mortbay.jetty.servlet.ServletHandler
 $CachedChain.doFilter(ServletHandler.java:1157)
         at
 com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:
 43)
         at org.mortbay.jetty.servlet.ServletHandler
 $CachedChain.doFilter(ServletHandler.java:1157)
         at
 com.google.appengine.tools.development.StaticFileFilter.doFilter(StaticFileFilter.java:
 122)
         at org.mortbay.jetty.servlet.ServletHandler
 $CachedChain.doFilter(ServletHandler.java:1157)
         at
 org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:
 388)
         at
 org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:
 216)
         at
 org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:
 182)
         at
 org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:
 765)
         at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:
 418)
         at
 com.google.apphosting.utils.jetty.DevAppEngineWebAppContext.handle(DevAppEngineWebAppContext.java:
 70)
         at
 org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:
 152)
         at com.google.appengine.tools.development.JettyContainerService
 $ApiProxyHandler.handle(JettyContainerService.java:349)
         at
 org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:
 152)
         at org.mortbay.jetty.Server.handle(Server.java:326)
         at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:
 542)
         at org.mortbay.jetty.HttpConnection
 $RequestHandler.content(HttpConnection.java:938)
         at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:755)
         at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:218)
         at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
         at
 org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:
 409)
         at org.mortbay.thread.QueuedThreadPool
 $PoolThread.run(QueuedThreadPool.java:582)

 On Jul 7, 8:29 pm, Marcus Vinícius Bastos de Andrade

 mynameisf...@gmail.com wrote:
  Use JSON in GWT ? It looks like PHP programming!

  On Wed, Jul 7, 2010 at 1:41 PM, Ahmed Shoeib
  ahmedelsayed.sho...@gmail.comwrote:

   i need to convert JSON to/From Java Object

   how to do it ?
   i don't know how to use this way

   On Jul 6, 10:35 pm, eggsy84 jimbob...@hotmail.com wrote:
Hi all,

With the latest versions of GWT you don't have to use any other
libraries.

GWT now comes with something known as Javascript Overlays that you can
utilise to convert JSON into Objects.

See here:

   http://code.google.com/webtoolkit/doc/latest/DevGuideCodingBasicsOver...

Also I have made a bit of a discussion on my blog here:

   http://eggsylife.co.uk/2010/04/22/gwt-2-jsonp-and-javascript-overlays...

Hope this helps,

Eggsy

On Jul 6, 1:38 pm, Harald Pehl harald.p...@googlemail.com wrote:

 You

Re: Urgent!!!!!!!!!!!!!!!!!!!!!!!!!!! GWT 2 Memory leak

2010-07-07 Thread lineman78

If it is an obvious problem in your code, you should be seeing memory
leaks in all browsers(which I believe you said you have). If that is
the case, you should be able to use the Speed Tracer plugin for
chrome. It tells you how many instances of which objects are being
created so that you can try and debug where you are holding a
reference to the object. Remember, in javascript there is no concept
of weak or soft references, so you have to be holding on to an object
somewhere in the DOM in order for there to be a memory leak. A memory
leak is not something that people here will be able to help you solve
directly, we can only give you pointers on ways to narrow down the
search. Also, if you are using flash, it is a common source of memory
leaks and it would explain the leaks persisting beyond the single
page(this could also be explained by a Java applet because only one
JVM is used throughout the entire browser).

On Jul 6, 6:15 pm, tarik kandil tarikkan...@gmail.com wrote:
First, I would like to mention that I am using GWT2.0. I have a problem in a
data table that I have developed using JQuery, I have many widgets, and I am
using gwittir binding. Besides, I am using bindable collection in my
datatable. After analysing my application, I found that there are some
elements that are not deleted in IE6. Also, the memory keeps incrceasing all
the time. Even if i change to a new page or i refresh the memory keeps
increasing when i filtre or go to another page or I do any action(memory
leak). Can you please tell me how to avoid the increasing of the memory
through the whole application, add methods to delete elements when i go from
page to page, or something like this. Thank you in advance.

2010/7/6 Matthias Groß f0r7y@googlemail.com

Hi,

I doubt that you will get any definite answers if you don't provide a
more thorough analysis of your problem.

Generally just try to release all references to heavy-weight objects
you don't need anymore as soon as possible. This holds true especially
for global instances, e.g. singletons.
If that doesn't help consider using weak references (see
http://java.sun.com/j2se/1.4.2/docs/api/java/lang/ref/WeakReference.html).

/Matthias

P.S.:
Also use less exclamation marks please.

--
Tarik Kandil
Consultant Informatique

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Standards Mode + Decorated Popup Panel + IE == FAIL

2010-07-06 Thread lineman78

I am having a problem where I have changed to standards mode in order
to use layout panels, but it seems to have broken decorated popup
panel in IE(the popup shows, but the rest of the screen turns white
behind it).  I have taken a very rough look with Firebug Lite and
didn't see anything obvious and was just wondering if anyone else has
seen this problem.  Again, I have not done a whole lot of debugging
yet, but I am in standards mode with IE6 and a DockLayoutPanel as my
root.  When I click on the button to pop up the popup shows up, but
everything else goes white, but as soon as you resize the window
everything paints correctly again.  Is there a way to tell the browser
to manually do a repaint maybe?

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Re: Layout UI Objects and GWT Themes

2010-06-15 Thread lineman78

Yeah, I am using the webkit and moz border radius for now.  I
understand that I could use decorated panel inside the tabs, but from
what I know you can't tell decorated panel to do just rounded corners
on the top.  I think what I may do is just use css3 stuff and when it
comes to browser selection use that to push a modern browser.  I just
wish that the GWT themes was fully supported with all the 2.0 stuff
including ClientBundle.

On Jun 15, 8:05 am, Stefan Bachert stefanbach...@yahoo.de wrote:
 Hi,

 Old widgets uses a 9-box (a table with 3x3 entry).

 CSS3 allows to similate a 9 box with border images.
 However, images inccrease download time.

 And CSS3 allows to apply rounded corner (-o/-moz/-webkit/-border-
 radius)

 Without a modern browser you still have to take 9 box.

 Stefan Bacherthttp://gwtworld.de

 On Jun 14, 7:57 pm, lineman78 linema...@gmail.com wrote:

  Does anyone know if there is a way to theme the new layout-based
  panels?  I.E. TabLayoutPanel to look like DecoratedTabPanel.  I know
  that they limited the amount of style classes involved in the new tab
  panel, so I cannot figure out a way to retrofit the DecoratedTabPanel
  styles to the TabLayoutPanel, such as rounded corner tabs.

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Layout UI Objects and GWT Themes

2010-06-14 Thread lineman78

Does anyone know if there is a way to theme the new layout-based
panels?  I.E. TabLayoutPanel to look like DecoratedTabPanel.  I know
that they limited the amount of style classes involved in the new tab
panel, so I cannot figure out a way to retrofit the DecoratedTabPanel
styles to the TabLayoutPanel, such as rounded corner tabs.

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Re: Exchange datas between modules

2010-05-12 Thread lineman78

See GWT Exporter.  This allows you to inject unobfuscated javascript
functions so you can call them through JSNI from the other module.  If
you don't want to include exporter, all you have to do is inject the
functions through JSNI on module load. DISCLAIMER: this is untested,
you might have to modify to get it to work/compile.

public abstract class ModuleEntryPoint implements EntryPoint {
protected abstract String getModuleId();

public abstract void recieveData(String data);

public void onModuleLoad() {
injectCallback(this, getModuleId());
}

private native void injectCallback(ModuleEntryPoint instance,
String moduleId)/*-{
if ($wnd.moduleDataInterfaces == undefined)
$wnd.moduleDataInterfaces = [];
$wnd.moduleDataInterfaces[moduleId] = function(data) {
return
instan...@com.google.example.moduleentrypoint::recieveData(Ljava/lang/
String;)(data);
}
}-*/;

public static native void sendData(String moduleId, String data)/*-
{
if ($wnd.moduleDataInterfaces != undefined)
$wnd.moduleDataInterfaces[moduleId](data) ;
}-*/;
}

On May 12, 8:36 am, djd alex.dobjans...@gmail.com wrote:
 No easy way to do this,

 One way is to use JSNI, write to DOM in one module, read in the 2nd.
 The problem here is serialization of these 2 events (read  write) -
 meaning u should be sure the data was actually written before reading
 them.
 Another way is to set a callback to DOM that listens to data :) (in
 the module that needs reading). And write with the 2nd module (after
 you have set the callback).

 Or you could eliminate these indirect methods and use a 3rd module
 that connects those 2 :) - which I actually suggest.

 Regards



  package module1
  method1 (Data data)
  {
     module2.class2.method2 (data);

  }

  when you consider a more complex case, you need to explain what you
  are going to do?.

  Stefan Bacherthttp://gwtworld.de

  On 12 Mai, 08:43, Stefan Ludwig tapir0...@gmail.com wrote:

   Hi,

   how I can exchange datas between two GWT modules? I there a way? Or/
   and how can I dispatch an event in another module (like button click)?

   Thanks
   Stefan

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Widget from DOM element

2010-05-11 Thread lineman78

I have had difficulty finding this and figure it must be something
stupid I can't find, but how do you create a widget from an element
already in the DOM so you can get eventing, or one not in the DOM so
you can add it to a panel?

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Re: How can I override gwt standard stylesheet with ClientBundle

2010-04-21 Thread lineman78

Use the @external annotations in your css.

On Apr 20, 3:52 pm, Vaibhav vkaka...@gmail.com wrote:
 If I want to change DatePicker object look and feel with ClientBundle
 how can I do this? How can I override gwt standard stylesheet of other
 gwt objects using ClientBundle?

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Re: Issue with deferred binding

2010-04-21 Thread lineman78

The underlying class is not using deferred binding, therefore your
replace-with is never considered.  In order for deferred binding to
work, you must use GWT.create();  What I would suggest you do is do
your own request builder implementation. There are many ways you can
do this, but to do defferred binding you have to call GWT.create
somewhere along the way and it must match or be a sub class of the
class listed in when-type-is.

On Apr 16, 12:41 pm, snctln catlin.s...@gmail.com wrote:
 [Sorry in advance for the lengthy post, I just posted this question
 over on stack overflow and copy/pasted the question here for more
 visibilty, so this is formatted with markup and all links referenced
 are at the bottom of the post]

 I developed a web app using GWT about 2 years ago, since then the
 application has evolved.  In its current state it relies on fetching a
 single XML file and parsing the information from it.  Overall this
 works great.  A requirement of this app is that it needs to be able to
 be ran from the filesystem (file:///..) as well as the traditional
 model of running from a webserver (http://...)

 Fetching this file from a webserver works exactly as expected using a
 [RequestBuilder][1] object.  When running the app from the filesystem
 Firefox, Opera, Safari, and Chrome all behave as expected.  When
 running the app from the filesystem using IE7 or IE8 the
 [RequestBuilder.send()][2] call fails, the information about the error
 suggests that there is a problem accessing the file due to violating
 the [same origin policy][3].
 The app worked as expected in IE6 but not in IE7 or IE8.

 So I looked at the source code of [RequestBuilder.java][4] and saw
 that the actual request was being executed with an XMLHttpRequest GWT
 object.  So I looked at the source code for [XMLHttpRequest.java][5]
 and found out some information.

 Here is the code (starts at line 83 in XMLHttpRequest.java)

       public static native XMLHttpRequest create() /*-{
         if ($wnd.XMLHttpRequest) {
           return new XMLHttpRequest();
         } else {
           try {
             return new ActiveXObject('MSXML2.XMLHTTP.3.0');
           } catch (e) {
             return new ActiveXObject(Microsoft.XMLHTTP);
           }
         }
       }-*/;

 So basically if an XMLHttpRequest cannot be created (like in IE6
 because it is not available) an ActiveXObject is used instead.

 I read up a little bit more on the IE implementation of
 XMLHttpRequest, and it appears that it is only supported for
 interacting with files on a webserver.

 I found a setting in IE8 (Tools-Internet Options-Advanced-Security-Enable 
 native XMLHTTP support), when I uncheck this box my app

 works.  I assume this is because I am more of less telling IE to not
 use their implementation of XmlHttpRequest, so GWT just uses an
 ActiveXObject because it doesn't think the native XmlHttpRequest is
 available.

 This fixes the problem, but is hardly a long term solution.

 I can currently catch a failed send request and verify that it was
 trying to fetch the XML file from the filesystem using normal GWT.
 What I would like to do in this case is catch the IE7 and IE8 case and
 have them use a ActiveXObject instead of a native XmlHttpRequest
 object.

 There was a posting on the GWT google group that had a supposed
 solution for this problem ([link][6]).  Looking at it I can tell that
 it was created for an older version of GWT.  I am using the latest
 release and think that this is more or less what I would like to do
 (use [GWT deferred binding][7] to detect a specific browser type and
 run my own implementation of XMLHttpRequest.java in place of the built
 in GWT implementation).

 Here is the code that I am trying to use

     package com.mycompany.myapp.client;

     import com.google.gwt.xhr.client.XMLHttpRequest;

     public class XMLHttpRequestIE7or8 extends XMLHttpRequest
     {
         // commented out the override so that eclipse and the ant
 build script don't throw errors
         //@Override
         public static native XMLHttpRequest create()
         /*-{
             try
            {
                 return new ActiveXObject('MSXML2.XMLHTTP.3.0');
            }
            catch (e)
            {
                return new ActiveXObject(Microsoft.XMLHTTP);
            }
         }-*/;

         // have an empty protected constructor so the ant build script
 doesn't throw errors
         // the actual XMLHttpRequest constructor is empty as well so
 this shouldn't cause any problems
         protected XMLHttpRequestIE7or8()
         {
         }
     };

 And here are the lines that I added to my module xml

     replace-with
 class=com.mycompany.myapp.client.XMLHttpRequestIE7or8
         when-type-is class=com.google.gwt.xhr.client.XMLHttpRequest/

         any
             when-property-is name=user.agent value=ie7 /
             when-property-is name=user.agent value=ie8 /
         /any
     /replace-with

 From what I can tell

Re: GWT Login/ Logout/ Remember Me (with concern in preventing Cross-Site Request Forgeries) Example

2010-04-21 Thread lineman78

I suggest using container managed security so that you don't have to
deal with most of this. I have implemented a GWT-based form login,
but it required some hackery because of the way tomcat/glassfish
handle redirecting for form login using request dispatching, therefore
causing your moduleBaseUrl to be off and not being able to load any of
the successive resource files. I was able to work around this using a
jsp to do a meta redirect so that the browser would go to the real
url.

On Apr 7, 3:57 pm, Sripathi Krishnan sripathikrish...@gmail.com
wrote:
For general ideas on how to implement remember me, the thread you started on
stackoverflowhttp://stackoverflow.com/questions/2594960/best-pratice-to-implement-...should
get you answers. I will try to answer the GWT specific things you
should be doing over here.

If you haven't already, please
readhttp://groups.google.com/group/Google-Web-Toolkit/web/security-for-gw
Its a bit dated, and will perhaps take you a while to go through it, but it
is definitely worth reading if you are concerned about security.

Once you have implemented remember-me, it is important that your website
doesn't have XSS (cross site scripting) or CSRF (cross site request forgery)
loopholes. Additionally, you must use a SSL certificate (https) to protect
the cookie from a man-in-the-middle attack.

Some suggestions for XSS and CSRF from a GWT perspective -

*Cross Site Scripting*

- Within GWT code, be wary of innerHTML() and eval() methods. Make sure
that whatever string you pass to these methods is trusted. If its not
trusted, you'd have to escape the
stringshttp://www.530geeks.com/encode.jspappropriately. GWT takes
care of things everywhere else.
- If you are using JSNI, make sure you don't insert untrusted content
into the dom. Same as above, use escaping if the strings are not trusted.
- If you use an external javascript library, make sure it doesn't have
loopholes.
- Finally, if you use a jsp/servlet to generate the html, make sure that
it doesn't echo input parameters without first escaping them.

*Cross Site Request Forgery*

- If you use GWT RPC (whether the legacy one or the new deRPC), you are
already protected. GWT sets custom request headers before making a RPC
call.
It also uses post with a custom content type. These cannot be forged using
a
script/image/iframe/form from another domain.
- If you use RequestBuilder to download JSON / XML, then you are on your
own. Follow the best practices laid down by
OWASPhttp://www.owasp.org/index.php/Cross-Site_Request_Forgery_%28CSRF%29_
GWTs security
noteshttp://groups.google.com/group/Google-Web-Toolkit/web/security-for-gw...also
has notes on how to protect against csrf.

--Sri

On 8 April 2010 02:36, Manuel Carrasco Moñino man...@apache.org wrote:

GWT (client side) has nothing to do with HttpOnly cookies because the
browser can not read them using javascript.

You have to face it in the server side, sending a cookie from your
servlet to the browser with the HttpOnly attribute set, the browser
will remember it, and the next time it loads the GWT application it
has to ask the server via RPC to know if the user has the appropriate
cookies, if not you have to show the login screen.

-Manolo

On Wed, Apr 7, 2010 at 8:17 PM, yccheok yancheng.ch...@gmail.com wrote:
Does anyone have a good code example, on how to implement login/logout/
remember me feature, using GWT, with concern on Cross-Site Request
Forgeries.

My plan is to use HttpOnly :
http://www.codinghorror.com/blog/2008/08/protecting-your-cookies-http...

However, I am not sure whether that will be sufficient enough.

Thanks.

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Re: gwt rpc - Client did not send 199 bytes as expected - RPCServletUtils.readContentAsUtf8

I remember having this problem with IE6 on older versions of GWT, I'm
not sure it is fixed as since OOPHM I don't use IE anymore.

On Apr 14, 12:25 pm, Simon Botting simon.bott...@enbuenosaires.com
wrote:
 Hi,

 The following exception is thrown for around 5% of the requests that
 are made through gwt rpc on our production server - the number of
 bytes changes (in this case its 199)

 04/13 21:36:20 ERROR in
 web.HibernateSessionRequestFilter.doFilter(line:57): Exception while
 dispatching incoming RPC call
 javax.servlet.ServletException: Client did not send 199 bytes as expected
         at 
 com.google.gwt.user.server.rpc.RPCServletUtils.readContentAsUtf8(RPCServletUtils.java:185)
         at 
 com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.readContent(AbstractRemoteServiceServlet.java:179)
         at 
 com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:215)
         at 
 com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:62)
         at javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
         at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
         at 
 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
         at 
 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)

 I think this is the version of the src file:

 http://code.google.com/p/google-web-toolkit/source/browse/branches/sn...

 I suspect that it's something to do with the fact that the html page
 that hosts the gwt module is in charset iso-8859-1 and not in utf-8,
 although I'm surprised that it only happens periodically in 5% of the
 cases, perhaps its a particular browser / version combination.  The
 site is a spanish language site, so its very possible that the
 information sent would have characters with accents.  Has anyone else
 had this problem is there a way that I can indicate to GWT that the
 charset of the page is iso-88591.

 Any suggestions greatly appreciated.

 Cheers
 Simon

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Re: Loading please wait + Animated GIF

I have noticed the same issue.  I know that javascript runs single
threaded, but I believe that the gif animation should run on a
seperate thread.  Have you run this experiment on browsers that use a
different threading model like the newer version of Chrome (soon
coming to FF).  Just because javascript is single threaded doesn't
mean that the rendering engine needs to be on that same thread.

On Apr 13, 4:30 am, Yogesh yogeshrn...@gmail.com wrote:
 Hi,
 I am showing a Loading, please wait.. message along with an animated
 gif.
 For this I have added following in my host page.
 div id=loadingimg src=loading.gif/ Loading Please wait../div
 I have usedhttp://www.ajaxload.info/ to generate a simple loading
 GIF image.
 And onModuleLoad() I am am removing this div before adding actual
 components into Rool Panel. This is working fine.

 The issue is that the animation of the GIF is not displayed. I found
 out that when javascript code in mymodule.nocache.js starts running in
 browser, the animation of GIF stops.

 I even wrote following HTML page to test this. When I click on Click
 me button, I just run some big for loop in javascript. When the
 javascript is running, the animation of GIF is stopped.

 script
 function bigJS()
 {
         for (var i=1; i=1000; i++);
         alert('done');}

 /script
 BODY
 div id=loadingimg src=loading.gif/ Loading Please wait../div
 input id=btnClick name=btnClick type=button value=Click me!
 onclick=bigJS() /
 /BODY

 Anyone know how to display the animated GIF properly?

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Re: -port keeps disappearing

I have had not problems with the following changes to the default
settings:

Server Tab: Uncheck Run built-in server
GWT Tab: Change the url to the URL of the html file associated with
the module.
(http://localhost:8080/ams/index.html)

There should be no need to modify the arguments directly if you just
change those 2 settings. The other stuff is internal eclipse plugin
stuff that you shouldn't be messing with.

On Apr 13, 4:55 am, Ian Bambury ianbamb...@gmail.com wrote:
So why doesn't the embedded server do it that way? Still seems like a bug to
me.

Ian

http://examples.roughian.com

On 13 April 2010 10:24, Thomas Broyer t.bro...@gmail.com wrote:

On Apr 13, 7:19 am, Abdullah Shaikh abdullah.shaik...@gmail.com
wrote:
OK, but is it not required to specify the port no. of my external server
? I
am using port 8080.

Not at all.
You can specify a -startupUrl so the DevMode appends the ?gwt.codesrv=
and you just have to copy/paste it to your browser; e.g. -startupUrl
http://myserver:8080/myapp.php

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Re: Scrollbars for VerticalPanel?

I don't see why you would need this.  Whenever you use RootPanel is
adds it directly to the document body.  I suggest using firebug to
debug this problem and check out the html directly.  Make sure you or
one of your inherited modules is not calling
Window.enableScrolling(false);.   RootLayoutPanel, from my
understanding will give you the effect that you specified, but if you
do not use layout panels you should not experience this issue.  A
VerticalPanel is essentially a one columned table.  The html in
firebug from calling RootPanel.get().add(new VerticalPanel()); should
look like this:

body
  table/
/body

On Apr 12, 2:37 am, Gilbert Corrales gcorra...@gmail.com wrote:
 good timing, we just went thru the same headache a couple of days ago
 as we are using GWT to build our admin website.

 the problem that you are facing is that by default the RootPanel and
 the RootLayoutPanel will wrap everything you put on with a couple of
 divs that will intentionally remove any scroll from your components
 while at same time expecting your root widget to take over all of the
 screen, at least this is what we found out checking the html it
 generates... and this might not fit everyone's wishes.

 now to fix this, we found that adding a ScrollPanel as the root widget
 and then inside of it the VerticalPanel get things rolling.

 if you use UiBinder it will look something like this:

 !DOCTYPE ui:UiBinder SYSTEM http://dl.google.com/gwt/DTD/xhtml.ent;
 ui:UiBinder
   xmlns:ui='urn:ui:com.google.gwt.uibinder'
   xmlns:g='urn:import:com.google.gwt.user.client.ui'
   g:ScrollPanel
                 g:VerticalPanel 
                         g:LabelMake it grow and grow/g:Label
                 /g:VerticalPanel
   /g:ScrollPanel
 /ui:UiBinder

 if not you can pretty much do the same with code.

 hope this helps :)

 cheers!

 p.s we are putting a blog post right now with a little bit more detail
 on this as we found no help elsewhere, will update when it's live.

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Re: How to download a JSON object from my GWT server?

2010-04-09 Thread lineman78

I would suggest using jersey services with a custom services context
resolver.  Put the following file in the same package as your jersey
services and replace **SerializableObject** with all of your root
elements.  Then check out the getting started guide on
jersey.dev.java.net

@Provider
public abstract class ServicesContextResolver implements
ContextResolverJAXBContext
{
private JAXBContext jsonContext;
private static final Class?[] types =
{**SerializableObject**.class};

public ServicesContextResolver()
{
try
{
jsonContext = new
JSONJAXBContext(JSONConfiguration.natural().build(), types);
}
catch (JAXBException e)
{
e.printStackTrace();
}
}

@Override
public JAXBContext getContext(Class? objectType)
{
return jsonContext();
}
}

On Apr 9, 8:23 am, Sripathi Krishnan sripathikrish...@gmail.com
wrote:
 You need to set the HTTP header
 *addHeader(Content-Disposition,attachment; filename=some-file-name.json*
 );

 --Sri

 On 8 April 2010 23:36, Sherry mywacco...@gmail.com wrote:

  Hi,
  I would like to have my application return a JSON object for
  download.

  I'm trying to simulate the behavior that happens when I access the
  page: http://search.twitter.com/trends/current.json?exclude=hashtags;
  in which the Chrome browser automatically downloads a file
  current.json . I've tried to print the JSON string into the output or
  through a JSP but it doesn't work (I need to return this JSON file
  into an XMLHttpRequest object).

  I've copied the current.json file I downloaded from the twitter link
  above into my WAR folder, but when I access it through Chrome it just
  opens its contents in the browser, and I would like to be able to
  download it, as in the twitter link.
  Can anyone direct me how to force this download to happen?
  Thank you
  Sherry.

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Hosted mode problem with JSO

2010-04-08 Thread lineman78

I am trying to write a generator to handle JSON overlay types for me,
but have run into a problem in hosted mode.  I have an object that
contains an array of JSOs so i do JavaScriptObject jso =
messages.getMessages[0]; and I get the following problem:

java.lang.ClassCastException:
com.google.gwt.core.client.JavaScriptObject$ cannot be cast to
[Lcom.google.gwt.core.client.JavaScriptObject;

I think it has something to do with some trick OOPHM does to get it to
work, but I was hoping someone familiar with hosted mode and OOPHM
could help me find a fix for this.

public interface LogMessages extends JSONObject
{
  public JavaScriptObject[] getLogMessages();
}

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Re: Single Origin Policy ByPass With IE8

2010-04-06 Thread lineman78

Yes, it will also inherit any authentication/sessions from the
browser. All you need to do is make your servlets support it and
inject scripts with the servlet's urls into the page.

On Apr 6, 8:11 am, Abdullah Shaikh abdullah.shaik...@gmail.com
wrote:
Does that mean that I can even call https using JSONP ?

- Abdullah

On Tue, Apr 6, 2010 at 1:47 AM, lineman78 linema...@gmail.com wrote:
You should switch your project over to use JSONP. I was able to do so
with minimal headaches assuming you can add the capability server
side. I developed a solution based on the code posted here:

http://www.gwtsite.com/how-to-access-web-services-with-gwt/

By using JSONP you will never have to worry about SOP problems on any
browser instead of exploiting what I believe is a security hole in IE8
because all other browsers consider different ports to violate SOP. I
wouldn't be surprised if this is patched.

On Apr 5, 12:47 pm, powwow jimmy.w...@gmail.com wrote:
OMG! This one nearly killed our project. When SOP was introduced in
development mode for GWT 2.0 our project screeched to a halt. We have
a huge application with a GWT front end communicating with a Rails
server doing JSON requests. We had GWT running onhttp://127.0.0.1:
and needed to connect to the rails server which ran onhttp://
127.0.0.1:3000.
The only difference was the port. Our application HAD to run in IE
(no Firefox or Chome). We had hundreds of JSON calls doing GET,
POST, PUT, DELETE all using RequestBuilder to communicate.

We tried ProxyServer scripts to forward urls to the Rails server, but
many were just too basic not being able to handle PUTs, DELETEs, form
uploads, headers and everything else. Half the calls worked, and half
the calls failed. We didn't have time to program the perfect
ProxyServer servlet.

We tried all the hacks including the Eclipse built in proxy server,
enabling cross domain communication in IE in the options, lowering
browser security levels, installing and uninstalling software, etc.,
all with no luck.

But we found something that did work for the time being. Here is a
work around if you need to bypass SOP: Use IE 8! We used IE7 and it
didn't work, but IE8 works!

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Re: Architectural ideas for a multi-app/module project

2010-04-06 Thread lineman78

You can use the GWT Exporter project to create interfaces between them
all and include the modules separately.  I have been playing with a
similar path, but unfortunately am unable to share the code.
Essentially each sub-module populates an Element and the underlying
software asks for that element through some JSNI calls and the element
is then added to the UI.

On Apr 6, 4:58 am, Jon Vaughan jsvaug...@gmail.com wrote:
 Hi all.

 I'm beginning to build a set of GWT applications for a client.

 The clients customers will purchase a set of these applications (not
 necessarily all of them) and when deployed these applications will
 work together (imagine, for example, a 'Contacts' app, a 'Billing'
 app, 'Timerecording' etc), linking back and forward between
 information in each.

 The client has a requirement that each app is independently
 deployable.  This would rule out the option of a monolithic compile
 despite its many advantages (optimization, memory footprint etc)

 - However they would also like the apps to all exist in a single
 window, to prevent confusion about pop-ups etc
 - And all of this has to work on relatively low powered machines and
 be IE6 compatible

 Possible options are iframes or a portal framework but in my view both
 of those are fairly horrible.  Iframes are going to mean history and
 inter app communication issues.  Portal frameworks mean an extra layer
 of effort, especially working out how to integrate the inter-portal
 communication with gwt.

 Alternatively I need to work out how to circumvent their independently
 deployable requirement.  Certainly there are enormous advantages to
 the single GWT compile.  The problem for the client is that if the UI
 has a common custom widget used in a couple of the apps, modifying it
 would mean retesting all apps that make use of it.  One solution to
 this I suppose is total codebase independence, with no common
 dependencies, or versioned widgets somehow, and I could argue for that
 style of approach.

 So I was wondering, does anyone have any alternative ideas, or
 thoughts about how they would approach the same situation

 Thanks

 Jon

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Re: JavaScriptObject deep copy.

2010-04-06 Thread lineman78

I would think this would be easier:

public static final native JavaScriptObject deepCopy(JavaScriptObject
obj) /*-{
return eval('{'+JSON.stringify(obj)+'}');
}-*/;

I haven't tested the above code, but it should work.


On Apr 4, 8:51 pm, Dean Huffman huffman.d...@gmail.com wrote:
 Since it took me 3 hours to figure out why this doesn't work and I
 could not find any other post on the subject, here is one way to do a
 deep copy of a JavaScriptObject using JSNI.

 public static final native JavaScriptObject deepCopy(JavaScriptObject
 obj) /*-{
   if (Object.prototype.toString.call(obj) === '[object Array]') {
     var out = [], i = 0, len = obj.length;
     for ( ; i  len; i++ ) {
       out[i] = arguments.callee(obj[i]);
     }
     return out;
   }
   if (typeof obj === 'object') {
     var out = {}, i;
     for ( i in obj ) {
       if (i != __gwt_ObjectId) {
         out[i] = arguments.callee(obj[i]);
       }
     }
     return out;
   }
   return obj;

 }-*/;

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Re: Single Origin Policy ByPass With IE8

2010-04-05 Thread lineman78

You should switch your project over to use JSONP.  I was able to do so
with minimal headaches assuming you can add the capability server
side.  I developed a solution based on the code posted here:

http://www.gwtsite.com/how-to-access-web-services-with-gwt/

By using JSONP you will never have to worry about SOP problems on any
browser instead of exploiting what I believe is a security hole in IE8
because all other browsers consider different ports to violate SOP.  I
wouldn't be surprised if this is patched.

On Apr 5, 12:47 pm, powwow jimmy.w...@gmail.com wrote:
 OMG!  This one nearly killed our project.  When SOP was introduced in
 development mode for GWT 2.0 our project screeched to a halt.  We have
 a huge application with a GWT front end communicating with a Rails
 server doing JSON requests.  We had GWT running onhttp://127.0.0.1:
 and needed to connect to the rails server which ran onhttp://127.0.0.1:3000.
 The only difference was the port.  Our application HAD to run in IE
 (no Firefox or Chome).   We had hundreds of JSON calls doing GET,
 POST, PUT, DELETE all using RequestBuilder to communicate.

 We tried ProxyServer scripts to forward urls to the Rails server, but
 many were just too basic not being able to handle PUTs, DELETEs, form
 uploads, headers and everything else.  Half the calls worked, and half
 the calls failed.  We didn't have time to program the perfect
 ProxyServer servlet.

 We tried all the hacks including the Eclipse built in proxy server,
 enabling cross domain communication in IE in the options, lowering
 browser security levels, installing and uninstalling software, etc.,
 all with no luck.

 But we found something that did work for the time being.  Here is a
 work around if you need to bypass SOP:  Use IE 8!  We used IE7 and it
 didn't work, but IE8 works!

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Generated CSSResource not injected when using UIBinder

2010-04-05 Thread lineman78

I am using the UIBinder sample code that is generated by eclipse and I
have run into one minor problem.  The CSS is not being injected.  Here
is the code:

!DOCTYPE ui:UiBinder SYSTEM http://dl.google.com/gwt/DTD/xhtml.ent;
ui:UiBinder xmlns:ui=urn:ui:com.google.gwt.uibinder
ui:style
.important {
font-weight: bold;
}
/ui:style
div
Hello,
span class={style.important} ui:field=nameSpan /
/div
/ui:UiBinder

public class SubModulePanel extends UIObject {
private static SubModulePanelUiBinder uiBinder = GWT
.create(SubModulePanelUiBinder.class);

interface SubModulePanelUiBinder extends UiBinderElement,
SubModulePanel {
}

@UiField
SpanElement nameSpan;

public SubModulePanel(String firstName) {
setElement(uiBinder.createAndBindUi(this));
nameSpan.setInnerText(firstName);
}
}

getFrontEndRootPanel().getElement().appendChild(
new SubModulePanel(Plugin 1; Instance:
+ 
getArgs().get(Instance)).getElement());

I checked it with firebug and it does have an obfuscated class name,
but the CSS is never injected.  I don't know if it matters but all
this is called through a runAsync.  Is there a way to inspect the
generated classes with eclipse?  I tried to inject the CssResource
into the SubModulePanel class so I could inject it manually, but also
had problems with that.

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Re: Generated CSSResource not injected when using UIBinder

2010-04-05 Thread lineman78

I just compiled this and the problem seems to only exist in hosted
mode.

On Apr 5, 2:25 pm, lineman78 linema...@gmail.com wrote:
 I am using the UIBinder sample code that is generated by eclipse and I
 have run into one minor problem.  The CSS is not being injected.  Here
 is the code:

 !DOCTYPE ui:UiBinder SYSTEM http://dl.google.com/gwt/DTD/xhtml.ent;
 ui:UiBinder xmlns:ui=urn:ui:com.google.gwt.uibinder
         ui:style
                 .important {
                         font-weight: bold;
                 }
         /ui:style
         div
                 Hello,
                 span class={style.important} ui:field=nameSpan /
         /div
 /ui:UiBinder

 public class SubModulePanel extends UIObject {
         private static SubModulePanelUiBinder uiBinder = GWT
                         .create(SubModulePanelUiBinder.class);

         interface SubModulePanelUiBinder extends UiBinderElement,
 SubModulePanel {
         }

         @UiField
         SpanElement nameSpan;

         public SubModulePanel(String firstName) {
                 setElement(uiBinder.createAndBindUi(this));
                 nameSpan.setInnerText(firstName);
         }

 }

 getFrontEndRootPanel().getElement().appendChild(
                                 new SubModulePanel(Plugin 1; Instance:
                                                 + 
 getArgs().get(Instance)).getElement());

 I checked it with firebug and it does have an obfuscated class name,
 but the CSS is never injected.  I don't know if it matters but all
 this is called through a runAsync.  Is there a way to inspect the
 generated classes with eclipse?  I tried to inject the CssResource
 into the SubModulePanel class so I could inject it manually, but also
 had problems with that.

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Re: Restlet GWT Client example

2010-04-02 Thread lineman78

You will most likely have to add a submit listener and build up the
json object and then use code similar to that found here:
http://wiki.restlet.org/docs_1.1/13-restlet/144-restlet/190-restlet.html

There is no automatic mappings... only projects like GXT and smartGWT
have direct mapping for their pro versions.  You can probably abstract
it out if you would like.  From the quick look at this API it looks
very inefficient.  The more efficient approach in my opinion is to use
Jersey(which it looks like this uses as the base for its server side
code) and Object Overlays like i mentioned before.  It doesn't offer
any type protection, but if you are controlling both ends you should
be fine.

On Apr 2, 3:44 am, dgiscool dgisc...@gmail.com wrote:
 I am using RESTLET for my REST implementation both on client and
 server side. I will be using JSON. So the GWT client will be
 communicating with RESTLET based web services using JSON. I want to
 understand:

 If I use FormPanel in GWT then how can I pass the parameters and Form
 data using POST ?
 Does any one have a sample code ?

 Thanks,
 Deep

 On Apr 2, 4:19 am, lineman78 linema...@gmail.com wrote:



  You have to be more specific on how you want to send the data.  Are
  you using Jersey for your REST implementation.  Are you restricting it
  to XML, or are you capable of doing JSON.  If you can do JSON it is
  very nice cause GWT has a direct loading method that has low
  overhead.  If you want to use XML you will have to build the DOM
  manually.  To use with the form object you will want to add a submit
  listener from which you will build the data object you are going to
  send and use the RequestBuilder to send it.  You can also make it use
  the default html form functionality by setting the action of the form,
  but this method is generally not used in an AJAX application.

  This wiki shows both the old and new way to implement JSON overlay
  types.http://code.google.com/p/google-web-toolkit/wiki/OverlayTypes

  All you need to do is create a native static method like this:
  class Customer extends JavaScriptObject{
    public static native Customer fromJson(String jsonString) /*-{
      return eval('{'+jsonString+'}');
    }-*/;

  }

  On Mar 31, 10:58 pm, dgiscool dgisc...@gmail.com wrote:

   Hi,

   I am trying to develop a GWT client that will call RESTful web
   services on the server side. Can some one please provide a example
   code that demonstrates how to send a POST HTTP request using GWT
   FormPanel ? Any help will be appreciated. On Restlet site, I do not
   find such examples. Thanks in advance for your help.

   -Deep Chand

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Re: Calling JSNI function from another JSNI function

2010-04-01 Thread lineman78

It should work... assuming myFunction in your first JSNI method is
actually a call to desktopShare I can only see one problem in this
code.  desktopShare is a static method and as such doesn't require the
instance when making the JSNI call.  Just remove the x before the @.

On Apr 1, 2:28 am, Ajith ajith.ad.ku...@gmail.com wrote:
 HI,

 Is it possible to call one JSNI function from another JSNI function?
 I have a  method setShowTrigger(this,elem,screenURL,inputStr,true);
 which I am calling in Moduleload of a GWT class.
 I wrote show trigger like
 public native void setShowTrigger(MainLayout x, Element elem, String
 screenURL, String inputStr, boolean b)/*-{

                         $wnd.showBlueApp = function () {

                         
 x...@com.mypackage.ui.client.mainlayout::myFunction(Lcom/google/gwt/
 user/client/Element;Ljava/lang/String;Ljava/lang/String;Z)
 (elem,screenURL,inputStr,b);

                         };

                         }-*/;

 My function is implimented as
  public static native int desktopShare(Element elem, String
 screenURLValue,
                     String actionURL,boolean wholeDesktop)/*-{

             var shareWholeDesktop = 0;
                 var returnVal = -1;
              if (elem != null)
              {
                 if (wholeDesktop)
                 {
                         shareWholeDesktop = 1;
                 }

                 var screenURL =screenURLValue ;

                 alert(Inside the perform function);

                 //alert(rtmpUrl+ rtmpUrl);

                 //alert(rtmpStream+ rtmpStream);
                 //alert(recordingFlags+ recordingFlags);
                 //alert(publisherId+ publisherId);

                 //alert(screen url  = +{screenURL:\+screenURL+\});
                 elem.setProperty({screenURL:\+screenURL+\});

                 var inputStr = actionURL;

                 //alert(inputStr+reg=+publisherId);
                 returnVal = elem.performAction(actionURL);
                 alert(returnVal from share+ returnVal);
                 return returnVal;
              }

 }-*/;

 Is it possible to make call like this? Is there any way? I have a html
 page witha button , Onclick of that I need to call showBlueApp ()
 function . I have included GWT script in the HTML page also.
 Please help me on this.

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Re: Restlet GWT Client example

2010-04-01 Thread lineman78

You have to be more specific on how you want to send the data.  Are
you using Jersey for your REST implementation.  Are you restricting it
to XML, or are you capable of doing JSON.  If you can do JSON it is
very nice cause GWT has a direct loading method that has low
overhead.  If you want to use XML you will have to build the DOM
manually.  To use with the form object you will want to add a submit
listener from which you will build the data object you are going to
send and use the RequestBuilder to send it.  You can also make it use
the default html form functionality by setting the action of the form,
but this method is generally not used in an AJAX application.

This wiki shows both the old and new way to implement JSON overlay
types.
http://code.google.com/p/google-web-toolkit/wiki/OverlayTypes

All you need to do is create a native static method like this:
class Customer extends JavaScriptObject{
  public static native Customer fromJson(String jsonString) /*-{
return eval('{'+jsonString+'}');
  }-*/;
}

On Mar 31, 10:58 pm, dgiscool dgisc...@gmail.com wrote:
 Hi,

 I am trying to develop a GWT client that will call RESTful web
 services on the server side. Can some one please provide a example
 code that demonstrates how to send a POST HTTP request using GWT
 FormPanel ? Any help will be appreciated. On Restlet site, I do not
 find such examples. Thanks in advance for your help.

 -Deep Chand

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Re: Dynamic Module Loading

2010-03-31 Thread lineman78

Yeah, there is 1 problem I have with your solution and a separate
issue your solution doesn't address.  The problem I have with your
solution is that iFrames can't inherit size.  One behavior I like is
that you can stack the modules and they will fit tightly against the
other and the one below will move if the upper one's height changes,
i.e. a disclosure panel.  The issue that your issue doesn't seem to
resolve is that I would like to dynamically add the modules to the
page as they are added and would like the main module to not know
anything about them other than the fact that they extend an abstract
sub module and the location of the module's nocache.js.

On Mar 31, 2:14 am, Olivier Monaco olivier.mon...@free.fr wrote:
 Hi,

 I don't know if I'll answer your question but we working on a main GWT-
 module with pluggable sub-modules. Each sub-modules is an ui-
 independant part of the whole application. To avoid interferences,
 each module loads into its own iframe. I wrote a messaging system that
 allow each module to communicate with each other (JSON serialization,
 auto-discovery of other modules...).

 Olivier

 On 31 mar, 03:10, lineman78 linema...@gmail.com wrote:

  I know this is a common request of people trying to make pluggable
  applications.  It seems that every time someone comes up with a
  solution to this problem the GWT team changes the way the core linkers
  work and break the solution.  I was wondering if anyone knows a way to
  dynamically load a module either with a new linker, or a different
  method than the traditional appending a new script element to the end
  of the body.  I try to append a script element to the end of the body
  and it completely blows the document away and freezes the page in a
  loading mode.  I found an email exchange between members of the GWT
  contributors group in December where they discuss new methods for the
  default linkers using dynamic iframes.  I have been exploring this
  capability since 1.5 and every time I revisit it the method(hack job)
  I used the last time will not work.  I would really like a more
  consistent method.

  Every forum I have seen where someone asks this someone inevitably
  asks why, so let me head off this question by explaining.  I have run
  into this in a few different situations, one when trying to integrate
  GWT portlets into Liferay(Java portlet).  The second situation is in
  trying to create a dynamic binding of sorts.  I have been trying to
  figure out a way to create a GWT portal where you could install
  modules and they could be added and removed dynamically without having
  to recompile the core, creating something similar to iGoogle or
  Liferay in a GWT/J2EE implementation.

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Re: Dynamic Module Loading

2010-03-31 Thread lineman78

I agree with everything you have said and this is the approach I am
experimenting with except for one problem.  Since 2.0 it is not
possible to load modules dynamically.  I have written a jsp that will
add all the installed plug-ins' scripts to the head when the page is
loaded, but unfortunately this causes a lot of unnecessary start-up
loading.  I am going to look into putting the entire instantiation
under a runAsync and that should hopefully fix the problem.  It would
still be nice to load the modules dynamically, but i guess it isn't a
huge deal to make them reload after installing a plug-in.

On Mar 31, 12:12 pm, Sripathi Krishnan sripathikrish...@gmail.com
wrote:
 GWT's architecture is orthogonal to your requirement of dynamic module
 loading / pluggable sub-modules, so whatever solution you find will be a
 hack and not maintainable.

 One of the core philosophies of GWT - *If something can be done at compile
 time, do it*. The key benefit of such a philosophy is performance. GWT
 scores over a lot of other frameworks because of its monolithic,
 closed-world compile. Any framework for dynamic module loading needs to
 defer a few operations to runtime, and that is a cost GWT core is unwilling
 to pay (thats what I understand).

 Having said that, you can still achieve what you want. Define an API (in
 terms of javascript methods) for your module, and use GWT
 Exporterhttp://code.google.com/p/gwt-exporter/to export the methods.
 That way, your GWT modules can inter-operate with
 hand-written javascript or with other pre-compiled GWT code. You can also
 dynamically add new modules to a page if you wish to do so. Any
 shared/common will however get download multiple times as part of each
 modules nocache.js + guid.cache.html, and there is nothing you can do about
 it.

 --Sri

 On 31 March 2010 21:48, lineman78 linema...@gmail.com wrote:

  Yeah, there is 1 problem I have with your solution and a separate
  issue your solution doesn't address.  The problem I have with your
  solution is that iFrames can't inherit size.  One behavior I like is
  that you can stack the modules and they will fit tightly against the
  other and the one below will move if the upper one's height changes,
  i.e. a disclosure panel.  The issue that your issue doesn't seem to
  resolve is that I would like to dynamically add the modules to the
  page as they are added and would like the main module to not know
  anything about them other than the fact that they extend an abstract
  sub module and the location of the module's nocache.js.

  On Mar 31, 2:14 am, Olivier Monaco olivier.mon...@free.fr wrote:
   Hi,

   I don't know if I'll answer your question but we working on a main GWT-
   module with pluggable sub-modules. Each sub-modules is an ui-
   independant part of the whole application. To avoid interferences,
   each module loads into its own iframe. I wrote a messaging system that
   allow each module to communicate with each other (JSON serialization,
   auto-discovery of other modules...).

   Olivier

   On 31 mar, 03:10, lineman78 linema...@gmail.com wrote:

I know this is a common request of people trying to make pluggable
applications.  It seems that every time someone comes up with a
solution to this problem the GWT team changes the way the core linkers
work and break the solution.  I was wondering if anyone knows a way to
dynamically load a module either with a new linker, or a different
method than the traditional appending a new script element to the end
of the body.  I try to append a script element to the end of the body
and it completely blows the document away and freezes the page in a
loading mode.  I found an email exchange between members of the GWT
contributors group in December where they discuss new methods for the
default linkers using dynamic iframes.  I have been exploring this
capability since 1.5 and every time I revisit it the method(hack job)
I used the last time will not work.  I would really like a more
consistent method.

Every forum I have seen where someone asks this someone inevitably
asks why, so let me head off this question by explaining.  I have run
into this in a few different situations, one when trying to integrate
GWT portlets into Liferay(Java portlet).  The second situation is in
trying to create a dynamic binding of sorts.  I have been trying to
figure out a way to create a GWT portal where you could install
modules and they could be added and removed dynamically without having
to recompile the core, creating something similar to iGoogle or
Liferay in a GWT/J2EE implementation.

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Re: Problem using java projects in GWT

2010-03-31 Thread lineman78

I think the 2 of us are answering different questions.  I believe the
problem he is having is that the GWT compiler is not allowing him to
use objects from a previous Java project he had done(I am assuming it
has some algorithms or POJOs that he doesn't want to replicate).  The
GWT compiler won't allow you to reference these objects even if they
are in the classpath because they are not part of an included module.
Your responses assume his problem is a classpath problem, but eclipse
would be yelling at you for that one, not just the compiler.  Also,
Lucas I forgot to mention, my approach will still not work if the
source(*.java) files are not in your classpath as the GWT compiler
requires the uncompiled source.

On Mar 30, 9:33 pm, Neil neiltol...@gmail.com wrote:
 In our projects, we just use our source code path directly.

 When launching the project in DevMode from within Eclipse, the launch
 config's classpath contains both the default classpath plus the /src
 directory.

 When compiling the project in Ant, we reference the source path
 directly in the gwt Compiler call:
       java classname=com.google.gwt.dev.Compiler fork=true
 maxmemory=512M failonerror=true 
          arg line=-war ${temp.war} /
          arg value=com.x.ModuleName /
          classpath
             path location=src /
             path location=${temp.classes}/
          /classpath
       /java

 Basically, the GWT Compiler needs both the compiled code and the
 source code to successfully compile the module.

 Hope that helps.

 Neil Olsonhttp://www.intertech.com/blog

 On Mar 30, 8:23 pm, lineman78 linema...@gmail.com wrote:

  You cannot use source code from a java project in GWT directly.  All
  GWT code must be in the client path of a module.  i.e.
  sura.ticketcheck.bo.Instancia is not part of a GWT module.  There is
  one workaround I have gotten to work(only once, so no guarantee).

  1) Create a file BoModule.gwt.xml in your source folder under the
  following path: sura/ticketcheck
  2) Put the following text into the file:
      ?xml version=1.0 encoding=UTF-8?
      !DOCTYPE module PUBLIC -//Google Inc.//DTD Google Web Toolkit
  2.0.3//EN http://google-web-toolkit.googlecode.com/svn/tags/2.0.3/
  distro-source/core/src/gwt-module.dtd
      module
          inherits name=com.google.gwt.user.User /
          source path=bo /
      /module
  3) In your src/ticketcheckGWT/xxx.gwt.xml put inherits
  name=sura.ticketcheck.BoModule/

  Essentially what you are doing is tricking the GWT compiler into
  thinking that sura.ticketcheck has a module who's source is in the
  folder 'bo'.  This should work as long as all files within package
  sura.ticketcheck.bo don't import outside of that package except
  standard java objects that are available through the
  com.google.gwt.user.User module.  I have run into this several times
  and sometimes you just have to rewrite(copy and paste) stuff into a
  GWT project.

  On Mar 30, 1:25 pm, Lucas Rios lucasri...@gmail.com wrote:

   Hi everybody

   I'm trying to use a Java project in GWT but I have had some problems 
   because
   I can't compile the GWT project.

   I have done this:

   1.Make a xxx.gwt.xml in the java project.
   2. Add a external JAR (java project) in the java build path of the GWT
   project. In Projects and libraries tabs.
   3. Reference a xxx.gwt.xml in GWT projects (gwt.xml)
   4. And last compile the GWT project... showing me those errors

   Compiling module ticketcheckGWT.Ticketcheck_GWT
      Validating newly compiled units
         [ERROR] Errors in
   'file:/D:/Sura_desarrollo/Ticketcheck%20GWT/src/ticketcheckGWT/client/Ticketcheck_GWT.java'
            [ERROR] Line 488: No source code is available for type
   sura.ticketcheck.bo.Instancia; did you forget to inherit a required 
   module?
         [ERROR] Errors in
   'file:/D:/Sura_desarrollo/Ticketcheck%20GWT/src/ticketcheckGWT/client/ServiciosTicketcheck.java'
            [ERROR] Line 13: No source code is available for type
   sura.ticketcheck.bo.Instancia; did you forget to inherit a required 
   module?
         [ERROR] Errors in
   'file:/D:/Sura_desarrollo/Ticketcheck%20GWT/src/ticketcheckGWT/client/ServiciosTicketcheckAsync.java'
            [ERROR] Line 12: No source code is available for type
   sura.ticketcheck.bo.Instancia; did you forget to inherit a required 
   module?
         [ERROR] Errors in
   'jar:file:/D:/Lucas%20Ríos/GWT/gwanted/gwanted-core.jar!/org/gwanted/gwt/core/client/logger/TimeLoggerImpl.java'
            [ERROR] Line 92: Parameter 'widgetLoadTime': type 'long' is not
   safe to access in JSNI code
            For additional info see:
   file:/D:/Escritorio/eclipse-jee-galileo-win32/eclipse/plugins/com.google.gwt.eclipse.sdkbundle.2.0.1_2.0.1.v201002021445/gwt-2.0.1/doc/helpInfo/longJsniRestriction.html
      Finding entry point classes
         [ERROR] Unable to find type 'ticketcheckGWT.client.Ticketcheck_GWT'
            [ERROR] Hint: Previous compiler errors may have

Dynamic Module Loading

2010-03-30 Thread lineman78

I know this is a common request of people trying to make pluggable
applications.  It seems that every time someone comes up with a
solution to this problem the GWT team changes the way the core linkers
work and break the solution.  I was wondering if anyone knows a way to
dynamically load a module either with a new linker, or a different
method than the traditional appending a new script element to the end
of the body.  I try to append a script element to the end of the body
and it completely blows the document away and freezes the page in a
loading mode.  I found an email exchange between members of the GWT
contributors group in December where they discuss new methods for the
default linkers using dynamic iframes.  I have been exploring this
capability since 1.5 and every time I revisit it the method(hack job)
I used the last time will not work.  I would really like a more
consistent method.

Every forum I have seen where someone asks this someone inevitably
asks why, so let me head off this question by explaining.  I have run
into this in a few different situations, one when trying to integrate
GWT portlets into Liferay(Java portlet).  The second situation is in
trying to create a dynamic binding of sorts.  I have been trying to
figure out a way to create a GWT portal where you could install
modules and they could be added and removed dynamically without having
to recompile the core, creating something similar to iGoogle or
Liferay in a GWT/J2EE implementation.

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Re: Problem using java projects in GWT

2010-03-30 Thread lineman78

You cannot use source code from a java project in GWT directly. All
GWT code must be in the client path of a module. i.e.
sura.ticketcheck.bo.Instancia is not part of a GWT module. There is
one workaround I have gotten to work(only once, so no guarantee).

1) Create a file BoModule.gwt.xml in your source folder under the
following path: sura/ticketcheck
2) Put the following text into the file:
?xml version=1.0 encoding=UTF-8?
!DOCTYPE module PUBLIC -//Google Inc.//DTD Google Web Toolkit
2.0.3//EN http://google-web-toolkit.googlecode.com/svn/tags/2.0.3/
distro-source/core/src/gwt-module.dtd
module
inherits name=com.google.gwt.user.User /
source path=bo /
/module
3) In your src/ticketcheckGWT/xxx.gwt.xml put inherits
name=sura.ticketcheck.BoModule/

Essentially what you are doing is tricking the GWT compiler into
thinking that sura.ticketcheck has a module who's source is in the
folder 'bo'. This should work as long as all files within package
sura.ticketcheck.bo don't import outside of that package except
standard java objects that are available through the
com.google.gwt.user.User module. I have run into this several times
and sometimes you just have to rewrite(copy and paste) stuff into a
GWT project.

On Mar 30, 1:25 pm, Lucas Rios lucasri...@gmail.com wrote:
Hi everybody

I'm trying to use a Java project in GWT but I have had some problems because
I can't compile the GWT project.

I have done this:

1.Make a xxx.gwt.xml in the java project.
2. Add a external JAR (java project) in the java build path of the GWT
project. In Projects and libraries tabs.
3. Reference a xxx.gwt.xml in GWT projects (gwt.xml)
4. And last compile the GWT project... showing me those errors

Compiling module ticketcheckGWT.Ticketcheck_GWT
Validating newly compiled units
[ERROR] Errors in
'file:/D:/Sura_desarrollo/Ticketcheck%20GWT/src/ticketcheckGWT/client/Ticketcheck_GWT.java'
[ERROR] Line 488: No source code is available for type
sura.ticketcheck.bo.Instancia; did you forget to inherit a required module?
[ERROR] Errors in
'file:/D:/Sura_desarrollo/Ticketcheck%20GWT/src/ticketcheckGWT/client/ServiciosTicketcheck.java'
[ERROR] Line 13: No source code is available for type
sura.ticketcheck.bo.Instancia; did you forget to inherit a required module?
[ERROR] Errors in
'file:/D:/Sura_desarrollo/Ticketcheck%20GWT/src/ticketcheckGWT/client/ServiciosTicketcheckAsync.java'
[ERROR] Line 12: No source code is available for type
sura.ticketcheck.bo.Instancia; did you forget to inherit a required module?
[ERROR] Errors in
'jar:file:/D:/Lucas%20Ríos/GWT/gwanted/gwanted-core.jar!/org/gwanted/gwt/core/client/logger/TimeLoggerImpl.java'
[ERROR] Line 92: Parameter 'widgetLoadTime': type 'long' is not
safe to access in JSNI code
For additional info see:
file:/D:/Escritorio/eclipse-jee-galileo-win32/eclipse/plugins/com.google.gwt.eclipse.sdkbundle.2.0.1_2.0.1.v201002021445/gwt-2.0.1/doc/helpInfo/longJsniRestriction.html
Finding entry point classes
[ERROR] Unable to find type 'ticketcheckGWT.client.Ticketcheck_GWT'
[ERROR] Hint: Previous compiler errors may have made this type
unavailable
[ERROR] Hint: Check the inheritance chain from your module; it may
not be inheriting a required module or a module may not be adding its source
path entries properly

If somebody know how I can solve it please help me

Thank for all

Regards

LucasRR

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Re: Can't load the same module twice???

2009-12-30 Thread lineman78

I am considering 2 usecases.  The first being an integration with the
Liferay Java portal where we would essentially have many portlets all
with the same portlet wrapper all using different deferred binding.
For instance, I would write one module to wrap all of our portlets and
write an ant script to change the module.gwt.xml's replace-with line
and recompile to produce all of our components.  We essentially have 2
possible ways of displaying our portlets.  One is a custom portlet
with no user management completely written in GWT, and the other is
Liferay (JSR Portlet spec).  I would like to have them all use the
same code with minimal wrapper work, which is why I decided on the
approach I just explained.  Also, I have been contemplating a way to
write a pure GWT portal implementation that would be completely
plugable.  From the (limited) research I have done, I cannot find an
easy way to make GWT pluggable without seperating it into several
modules, and I could see a case where someone would like to put the
same portlet on the page twice with different data/configuration.  I
have been working on a way to make this work, and I believe I have.  I
think this could also be modified for all the work to be done as a
Linker, but I am not familiar enough with them to do that yet,

private static native JavaScriptObject fixWnd()/*-{
orig_wnd = $wnd;
while($wnd.parent != $wnd)
  $wnd = $wnd.parent;
if (orig_wnd == $wnd)
  return null;
$doc = $wnd.document;
return orig_wnd;
  }-*/;

  private static final JavaScriptObject originalWindow = fixWnd();

  public static native String getQueryParam(String queryParam)
  /*-{
return @com.gwt.client.GWTClient::originalWindow.gup(queryParam);
  }-*/;

  public void onModuleLoad()
  {
if (originalWindow == null)
  throw new RuntimeException(not meant to be run as a
standalone);
Alerter alerter = ((Alerter) GWT.create(Alerter.class));
RootPanel.get(container_ + getQueryParam(uuid)).add
(alerter.getWidget());
  }

/tester/GWTTester.html
!DOCTYPE HTML PUBLIC -//W3C//DTD HTML 4.01 Transitional//EN
html
  head
meta http-equiv=content-type content=text/html;
charset=UTF-8
titleindex/title
script type=text/javascript
function gup( name )
{
  name = name.replace(/[\[]/,\\\[).replace(/[\]]/,\\\]);
  var regexS = [\\?]+name+=([^#]*);
  var regex = new RegExp( regexS );
  var results = regex.exec( window.location.href );
  if( results == null )
return ;
  else
return results[1];
}
/script
  /head
  body style=margin:0;
script type=text/javascript language=javascript
src=tester.nocache.js/script
  /body
/html

/index.html
!DOCTYPE HTML PUBLIC -//W3C//DTD HTML 4.01 Transitional//EN
html
  head
meta http-equiv=content-type content=text/html;
charset=UTF-8
titleindex/title
  /head
  body style=margin:0;
iframe src=tester/GWTTester.html?alerter=hellouuid=1
style=display:none;/iframe
iframe src=tester/GWTTester.html?alerter=goodbyeuuid=2
style=display:none;/iframe
iframe src=tester/GWTTester.html?uuid=3 style=display:none;/
iframe
div id=container_3/div
div id=container_2/div
div id=container_1/div
  /body
/html

On Dec 30, 9:39 am, Jason Essington jas...@greenrivercomputing.com
wrote:
 I can't think of a single usecase where it would be appropriate to load a 
 module twice ... It would be effectively the same as loading YUI, or Dojo, or 
 jQuery twice, Once it is there the first time there's no need to load it 
 again, the code is already there.

 If you are simply trying to place a panel in multiple places on the page, 
 that can be done from the single invocation of your module, look for the 
 container elements in the DOM and add your panel (widgets)

 RootPanel.get(contianer1).add(myStuff); 
 RootPanel.get(container2).add(anotherInstanceOfMyStuff);

 -jason

 On Dec 29, 2009, at 6:39 PM, Ian Bambury wrote:

  Why would you want to run it twice? What effect are you trying to produce?

  Ian

 http://examples.roughian.com

  2009/12/30 lineman78 linema...@gmail.com
  Can someone please tell me if it is possible to load the same module
  twice.  If so, how?  I have tried including the script tag twice,
  which used to work in older versions of gwt, but no longer works.  I
  was thinking that once it is loaded you could call the onModuleLoad
  function manually, but cannot find how that would work.  Another thing
  I noticed is that if you do include the script tag twice, it writes
  the code to the dom twice, but it is only executed once.  If it is by
  design that you can only run a module once by including the script
  tag, maybe this ought to be prevented.  I also tried using the cross
  site linker, which is what i believe i used before to get this to
  work.

  module
         define-linker name=xs class=com.google.gwt.core.linker.XSLinker/

         add-linker name=xs/

         inherits name=com.google.gwt.user.User

Can't load the same module twice???

2009-12-29 Thread lineman78

Can someone please tell me if it is possible to load the same module
twice.  If so, how?  I have tried including the script tag twice,
which used to work in older versions of gwt, but no longer works.  I
was thinking that once it is loaded you could call the onModuleLoad
function manually, but cannot find how that would work.  Another thing
I noticed is that if you do include the script tag twice, it writes
the code to the dom twice, but it is only executed once.  If it is by
design that you can only run a module once by including the script
tag, maybe this ought to be prevented.  I also tried using the cross
site linker, which is what i believe i used before to get this to
work.

module
define-linker name=xs class=com.google.gwt.core.linker.XSLinker/

add-linker name=xs/

inherits name=com.google.gwt.user.User /
source path=client /

define-property values=hello,goodbye,default name=alerter /

property-provider name=alerter
![CDATA[
var alerter = $wnd.gwttester_alerter;
if (alerter == null){
alerter = default;
}
return alerter;
]]
/property-provider

replace-with class=com.gwt.client.alert.impl.HelloAlerter
when-type-is class=com.gwt.client.alert.Alerter /
when-property-is name=alerter value=hello /
/replace-with

replace-with class=com.gwt.client.alert.impl.GoodbyeAlerter
when-type-is class=com.gwt.client.alert.Alerter /
when-property-is name=alerter value=goodbye /
/replace-with

replace-with class=com.gwt.client.alert.impl.DefaultAlerter
when-type-is class=com.gwt.client.alert.Alerter /
when-property-is name=alerter value=default /
/replace-with

entry-point class=com.gwt.client.GWTClient/entry-point
/module

html
  head
meta http-equiv=content-type content=text/html;
charset=UTF-8
titleindex/title
  /head
  body
div
script type=text/javascriptvar gwttester_alerter = 
'hello';/
script
script type=text/javascript language=javascript
src=com.gwt.GWTTester.nocache.js/
/div
div
script type=text/javascriptvar gwttester_alerter = 
'goodbye';/
script
script type=text/javascript language=javascript
src=com.gwt.GWTTester.nocache.js/
/div
  /body
/html

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Re: How to run GWT 2.0 RC2's hosted mode with another server?

2009-12-15 Thread lineman78

I have been having an issue with my project setup running in --
noServer since 1.6.? that I'm hoping you could help me with.  I am
getting the error
17:01:38.826 [ERROR] [dashboard] Unable to find 'dashboard.gwt.xml'
on your classpath; could be a typo, or maybe you forgot to include a
classpath entry for source?
with the following module:

?xml version=1.0 encoding=UTF-8?
!DOCTYPE module PUBLIC -//Google Inc.//DTD Google Web Toolkit 1.7.1//
EN http://google-web-toolkit.googlecode.com/svn/tags/1.7.1/distro-
source/core/src/gwt-module.dtd
module rename-to=dashboard
entry-point class='com.example.dashboard.client.Dashboard'/

inherits name=com.google.gwt.user.User /
inherits name=com.google.gwt.visualization.Visualization /
inherits name=com.google.gwt.http.HTTP/
inherits name=com.google.gwt.maps.GoogleMaps /

stylesheet src=common.css/
/module

Using the following dashboard.html:

html
head
titleDashboard/title
/head
body style=margin: 0;
!-- OPTIONAL: include this if you want history support --
iframe src=javascript:'' id=__gwt_historyFrame
style=width: 0; height: 0; border: 0/iframe

script type=text/javascript language=javascript
src=dashboard.nocache.js/script
/body
/html

On Dec 4, 3:13 pm, Chris Ramsdale cramsd...@google.com wrote:
 Jan,

 It looks like you found an issue on our side. Given your project settings,
 the GPE is attempting to load GwtShell with the -style arg which has been
 removed.

 We have a fix in place for the 2.0 launch and in the meantime, if you want
 to continue using the RC2 plugin and SDK, you can do the following:

 1. Uncheck the Use Google Web Toolkit setting within your project
 properties
 2. Add a war/WEB-INF directory structure to your app
 3. Add a web.xml to the WEB-INF directory with the following contents:

 ?xml version=1.0 encoding=UTF-8?
 !DOCTYPE web-app
     PUBLIC -//Sun Microsystems, Inc.//DTD Web Application 2.3//EN
     http://java.sun.com/dtd/web-app_2_3.dtd;

 web-app
 /web-app

 4. Check the Use  Google Web Toolkit settings within your project
 properties

 This workaround will trigger the plugin to launch DevMode (instead of
 GwtShell) without the -style arg.

 - Chris

 On Thu, Dec 3, 2009 at 7:07 AM, Jan Ehrhardt 
 jan.ehrha...@googlemail.comwrote:

  The idea was, to prevent the existences of 'war/*' in my GWT project. With
  the current stable version of the plugin and GWT 1.7.1 everything works
  well.
  So the problem is, that my GWT project does not have any server code and no
  host page or anything else. The current version works the following way:

     - GWT (Web App launch configuration) app is launched in hosted mode
     without the build in server.
     - Instead of a host page in the same project, the host page comes from
     an independent server.
     - The hosted browser loads the host page (from the specified URL),
     detects the existence of a GWT module (included as JavaScript) and 
  replaces
     the JavaScript with the Java Code from the classpath.

  The interesting point is, that the text field to specify the URL is removed
  from the GWT tab in the web app launch configuration (plugin version for GWT
  2.0 RC2). So the question is, how can I point the OOPHM to my host page's
  URL (on any server)?

  At least some words on what I'm currently doing in Eclipse 3.5 with the
  released version of the plugin and GWT 1.7.1:
  I've got a plain Java project and make a GWT project out of it by right
  click on the project - Google - WebToolkit Settings. In these GWT settings
  I check 'Use Google Web Toolkit' and then OK. This makes my Java project a
  GWT project. I create a new Web App launch configuration for this project,
  disable 'Run build in server' and on the GWT tab I insert my host pages URL
  (http://localhost:8080/my-app-which-runs-totaly-independent-on-a-tomcat).
  That's it. It works.
  Interestingly it's not required to specify any GWT module in any
  configuration so far. The presence of the module's XML configuration on the
  classpath and the presence of a previously compiled version of the module in
  the loaded HTML page is enough to tell hosted browser, what to do. The GWT
  Eclipse plugin doesn't even recognize the XML file since the included module
  isn't shown in any settings or configuration interface. But it works.

  Regards
  Jan Ehrhardt

  On Tue, Dec 1, 2009 at 5:03 PM, Chris Ramsdale cramsd...@google.comwrote:

  Based on the fact that the plugin is attempting to launch GWTShell, it may
  not recognize your app as a web app. This is typically the case when it
  doesn't find a war/WEB-INF/web.xml file in the project root. Can you 
  confirm
  that this directory structure is in place? Also, what version of GWT and 
  GPE
  were you using to previously build your application?

  On Tue, Dec 1, 2009 at 1:56 AM, Jan Ehrhardt jan.ehrha...@googlemail.com
   wrote:

  I'm using the Web App launch configuration and the plugin version, which

Code Splitting

2009-08-18 Thread lineman78


Is code splitting available yet in some sort of semi-finished form.  I
am about to start a rather large portlet project that is going to have
several main applications (known as components to those familiar with
Joomla) and would like to defer the loading of each of the components
until that area of the application is accessed.  I found some examples
of this for pre 1.4 with dynamic module loading, but I don't think
differed binding would work correctly for my application, as from what
I understand the code to decide the implementation class is only run
once and not every time gwt.create is run.  If code splitting is
available, could someone please provide an example of how I might
write my factory class.  Here is my first instinct of how it should be
used.

public final class ComponentFactory {
  public static Component getComponent(String pageArg, String[]
otherArgs)
  {
if (arg == null)
  return new BlogComponent(otherArgs);
  }
}

public final class ComponentWrapper extends Panel implements
HistoryListener {
  ...

  public void onHistoryChanged(HistoryEvent e)
  {
GWT.runAsync(){
  public void run()
  {
clear();
add(ComponentFactory.getComponent(HistoryManager.getPageArg(),
HistoryManager.getArgs()));
  }
};
  }
}
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GWT Compiler Question

2009-06-09 Thread lineman78


Is there any way to tell the compiler not to put the files in a folder
named after the package name.  i.e., if my module is
com.google.test.TestApp and I compile with -war www, it puts all the
files under ./www/com.google.test.TestApp.  I was wondering if there
is a way to get it to just put all the files in ./www?  I am building
a rather large project that I am building with an ant script and I am
having to move all the files after they are compiled and moving over
6000 files is taking a long time.
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JSNI Special Character Problem

2009-04-08 Thread lineman78


Hello all,

I am currently working with using JAX-RS to retrieve data from my
server in JSON format, and the default marshaller adds the '@' symbol
to the beginning of variable names for attributes.  I am using the
method of casting the JSON to a JavaScriptObject using the eval(json)
function.  The problem is that the object looks like this:

{
  '@firstName':'Ted'
}

and I am using the native method to get the object:

public final native String getFirstName()/*-{ return
th...@firstname; }-*/;

which of course gives an error because it is expecting a package
name:variable after that @ symbol.  My question is if there is a way
to escape the character so that the JSNI parser will ignore it and
pass the literal, because we are having some issues getting JAX-RS to
use a different JSON format.  Basically the overall structure of this
portion of the project follows that described here:
http://code.google.com/webtoolkit/tutorials/1.5/JSON.html
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GWT Portlet Load problem


I have been working on integrating GWT into a Liferay portlet and am
having one major problem.  When I drop the code on the page the screen
goes blank, in debugging this I have been able to determine the
problem through my access logs.  Even though the context of the
portlet is /GWTTest, it tries to load the javascript from /web/guest.
If I go to another url and come back to the portal the js is loading
from the right location.  I had read that using the cross-site linker
solved some of these problems, but I cannot see any difference between
the std linker and the xs and am unsure if it is even working.  If
someone could give me some pointers on how to go about solving this
problem, it would be helpful.

Thanks

module
inherits name=com.google.gwt.core.Core /
add-linker name=xs/
inherits name='com.google.gwt.user.User'/
entry-point class='com.*.portal.client.GWTTest'/
servlet path=/GWTTestService
class=com.*.portal.server.GWTTestServiceImpl/
/module
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Re: GWT RPC Security Concern


I believe that if you use container managed security for your entire
GWT app it will require authentication to access the servlets too.  In
fact I just tested it and that is correct(FROM ACCESS LOG:
'127.0.0.1 matt 06/Mar/2009:18:17:36 + POST /SEESuite/
rssParser HTTP/1.1 200 3082' notice this request is authenticated as
the user matt).  We are doing this Unfortunately if you are handling
your own security within your module, you will have to somehow handle
your own security in the servlets also, which in turn creates a lot of
security issues.  I believe if you call the application with SSL the
RPC calls will also use SSL, but I have not tested this.  Also, I know
RPC has a lot of built in security and error checking that would make
it difficult for the person trying to access the servlets directly
without intemate knowledge of the RPC package structure because I know
every once in a while I get traces in my logs that say expected xx
bits and recieved xx, aborting rpc call.

On Mar 6, 9:22 am, erincarikan erincari...@gmail.com wrote:
 Excuse my illiteracy about gwt, I just started working on GWT last
 week. Yesterday I implemented my first rpc application and one thing
 makes me worried a little bit. I will compile and all the content will
 work on client and it will rpc server code without any authentication
 if I am not mistaken. So can anyone who figures out the url consume
 this service? If so, This is definitely not what I wanted, because I
 have to add rpc functionality to a pci compliant system which will
 break the requirements. I read the security article but I didn't see
 any references to this situation at all, so I thought maybe I am
 missing something it's not a problem but still not sure about it. Also
 without authentication and object validation system will be open to
 object injections. If I am right about my concerns, Can anybody give
 me a security model example?
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Re: GWT RPC Security Concern


Yes, this approach can work, but there is one small drawback.  If you
aren't planning on making it a ssl application you will have to use
ssl for the rpc/json authentication request.  This is so that the
packets cannot be intercepted on unsecure wireless.  I believe
container managed security has this built in.  There are some
approaches that work around this, such as md5 hashing on the client
side before sending, all make it more difficult, but none are as
secure as ssl.  The drawback to container managed security is that the
default authenticator is not friendly and ugly.  You would have to
deploy an unauthenticated jsp or jsf to do pretty authentication that
would forward you once authenticated.  You might also consider LDAP,
CAS or Open SSO as other forms of authentication that have a lot of
infrastructure provided.

On Mar 6, 11:56 am, erincarikan erincari...@gmail.com wrote:
 Thanks for the reply, Frankly I never used container managed security
 before, but now I am reading about it. Another approach I was thinking
 about was checking encrypted passwords in servlet from the db,  I
 found something like this in the wiki which looks like a simple and
 good approach to me:

 http://code.google.com/p/google-web-toolkit-incubator/wiki/LoginSecur...

 On Mar 6, 1:20 pm, lineman78 linema...@gmail.com wrote:

  I believe that if you use container managed security for your entire
  GWT app it will require authentication to access the servlets too.  In
  fact I just tested it and that is correct(FROM ACCESS LOG:
  '127.0.0.1 matt 06/Mar/2009:18:17:36 + POST /SEESuite/
  rssParser HTTP/1.1 200 3082' notice this request is authenticated as
  the user matt).  We are doing this Unfortunately if you are handling
  your own security within your module, you will have to somehow handle
  your own security in the servlets also, which in turn creates a lot of
  security issues.  I believe if you call the application with SSL the
  RPC calls will also use SSL, but I have not tested this.  Also, I know
  RPC has a lot of built in security and error checking that would make
  it difficult for the person trying to access the servlets directly
  without intemate knowledge of the RPC package structure because I know
  every once in a while I get traces in my logs that say expected xx
  bits and recieved xx, aborting rpc call.

  On Mar 6, 9:22 am, erincarikan erincari...@gmail.com wrote:

   Excuse my illiteracy about gwt, I just started working on GWT last
   week. Yesterday I implemented my first rpc application and one thing
   makes me worried a little bit. I will compile and all the content will
   work on client and it will rpc server code without any authentication
   if I am not mistaken. So can anyone who figures out the url consume
   this service? If so, This is definitely not what I wanted, because I
   have to add rpc functionality to a pci compliant system which will
   break the requirements. I read the security article but I didn't see
   any references to this situation at all, so I thought maybe I am
   missing something it's not a problem but still not sure about it. Also
   without authentication and object validation system will be open to
   object injections. If I am right about my concerns, Can anybody give
   me a security model example?- Hide quoted text -

  - Show quoted text -


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Re: GWT RPC Security Concern