date:20100527



On 27 mai, 01:46, Tom Davies tgdav...@gmail.com wrote:
 I'd like to use an HTMLPanel widget with its HTML provided by a
 UiBinder template.

 Unfortunately, HTMLPanel always calls setElement() in its constructor.

Just like any widget.

 Is there any way around this other than extending ComplexPanel and
 copying the parts of HTMLPanel which I want?

I really don't understand how you'd like to use HTMLPanel and what
prevents you just using it.

Just so you know, because it isn't documented, you can choose the tag
name of the root element with UiBinder (the HTMLPanel(String,String)
constructor), just use a tag= attribute, e.g.

g:HTMLPanelThis will use a div element/g:HTMLPanel

g:HTMLPanel tag='p'While this will use a p element/g:HTMLPanel

You can then use an HTMLPanel as the root of your UiBinder and build
your widget as a Composite, passing the HTMLPanel built by UiBinder to
the initWidget method.

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Re: onLoad?



On 27 mai, 06:43, spierce7 spier...@gmail.com wrote:
 Hey guys, I'm creating a class that extends Label, and for some reason
 whenever I create an instance of it, it doesn't load the onLoad()
 class when it's instantiated. I've got it set up the exact same way I
 have a class that extends grid, that properly uses onLoad, but for
 some reason this isn't.

 The idea occurred to me that I don't even really know what onLoad does
 exactly. What is the difference between onLoad and a constructor, and
 how should I be using them differently? (yes I did a search).

From the JavaDoc: This method is called immediately after a widget
becomes attached to the browser's document.
This is has nothing to do with the time you create the widget (you can
create a widget and just keep it in a variable, and add it to another
widget later, or never; this is not really a good practice but it's
possible); it can be called at different times:
 - when you add the widget to another widget which is already attached
to the browser's document
 - when you attach a parent widget to the browser's document (onLoad
propagates to children)
Widgets that are attached without the need to add them to other
widgets are:
 - RootPanel
 - RootLayoutPanel
 - any widget that you created using its wrap(Element) static method

 Out of curiosity how does onModuleLoad() fit into the mix also?

Again totally a different thing. This is called to start our app.
Nothing will ever be called before onModuleLoad (except the
constructor of your EntryPoint class, of course)

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Re: How to achieve traditional website behavior with layout panels?

I use both. My goal is to be IE8+ compliant, so many problems go away.
Then, for others, I use GWT to avoid writing CSS hacks.

Be aware that Panels are for Quirks Mode and Layout are for Compliant/
Standard Mode. In the first mode, browser have many differences, which
Panels try to correct. In the second mode, there are, for recent
browser, less differences. I always write my pages as XHTML (strict if
possible) so I don't need many GWT complex component.

Finally, for website, I never use Panels like Stack, Dock... because
its not for website, it's for app. That the reason there must be
replaced by there Layout counterparts.

Olivier

On 27 mai, 09:51, googelybear googelyb...@gmail.com wrote:
 I also prefer to do the styling with CSS and not via gwt methods. But
 I still use the panels as one of the strengths of gwt is that it knows
 best how to create them in a cross-platform/ cross-browser way and
 deals with the browser differences for me (at least in theory). I then
 just style them with CSS to look the way I want.
 If I would implement everything with html tags I would have to deal
 with browser differences again and start implementing browser hacks
 which I want to avoid at all cost. What do  you think?

 Dennis

 On May 26, 10:06 pm, Olivier Monaco olivier.mon...@free.fr wrote:

  When I want to create a website like app, I use as many HTML tags as
  possible with UiBinder. Then, I use CSS to sets the position, border,
  color... and never the GWT methods. That way, I have a true web site
  but using GWT. I don't like to create a website-like app (something
  that looks like a web site but with widgets like in app): you want a
  website (HTML + CSS) or an app (Widgets + Layout).

  Olivier

  On 26 mai, 13:53, googelybear googelyb...@gmail.com wrote:

   Are you not afraid that they will get removed soon?
   I always get deprecated warnings when using them: StackPanel is
   deprecated. Use the StackLayoutPanel instead. and same for others
   (DockPanel, TabPanel, ...).

   What's the official policy on this?

   On May 26, 11:49 am, Olivier Monaco olivier.mon...@free.fr wrote:

For a traditionnallayout, I use the old schoolpanels. It's not
really a old school, it just has another goal.

Olivier

On 26 mai, 10:33, googelybear googelyb...@gmail.com wrote:

 Hi,

 I am developing a webapp that should behave like atraditionalweb
 page, meaning that when the content grows in height the browser should
 display a vertical scroll bar. Unfortunately I was foolish and jumped
 right in on the new, shinylayoutpanels. As I found out later these
 are not suitable for me, as they create a more application-like look
 and feel with scrollbars displayed in the individual gwtpanels
 instead of the browser (try resizing e.g. google wave - When the
 available area is too small scrollbars will appear inside all the
panels, the browser will never display any scrollbars) and also they
 are working with lots of fixed sizes (in my case the content is
 dynamic).
 I tried toachievethetraditionalbehaviorwith my LayoutPanels but
 failed. I couldn't get the browser to display scrollbars, only inner-
 panel scrolling, and stuffing a layoutpanel inside a scrollpanel is
 not the desirable approach (stuffinglayoutpanelsinside non-layout
panelsusually ended badly for me..).
 So my conclusion is to revert to the old schoolpanels. But I am
 afraid that support of these will be dropped soon. What do you think?
 Are there better alternatives? Anyone fought with a similar problem?

 thanks for any suggestions,
 Dennis



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Re: UIObject getOffsetWidth() method returning absurd value for IE

http://google-web-toolkit.googlecode.com/svn/javadoc/2.0/com/google/gwt/user/client/ui/Widget.html#isAttached()

On 27 mai, 08:00, Tapas Adhikary tapas4...@gmail.com wrote:
 Hi mmoossen,
 Thanks for the reply. If u can explain it little more , it will be  a great
 help. I didn't get this part of your mail ,

  our widget is attached to the doc when calling that method, *AND*
  that it is also visible!

 What do I need to check exactly ?

 Thanks,
 -tapas

 On Tue, May 25, 2010 at 5:43 PM, mmoossen mmoos...@gmail.com wrote:
  Hi tapas!

  that is most likely a timing issue. what i mean is that you have to
  check that:
  - your widget is attached to the doc when calling that method, *AND*
  - that it is also visible!

  HTH
  Michael

  On May 25, 7:09 am, Tapas Adhikary tapas4...@gmail.com wrote:
   Hi all,,

   Can anybody give any clue on this ?

   On Mon, May 24, 2010 at 1:05 PM, Tapas Adhikary tapas4...@gmail.com
  wrote:
I am using GWT 2.0 . In my application , I am using a logic to
randomly/correctly position the pop-up when I click an anchor link. I
  am
setting the position of the popup using the UiObject's OffsetWidth and
OffsetHeight property.

I am calling ,

popupPanel.setPopupPositionAndShow( new PopupPanel.PositionCallback()
{
public void setPosition(
 int iOffsetWidth,
int iOffsetHeight)
 {
                               // Some code
                        }
               }
The position callback happens from the PopupPanel.java which in turn
  gets
the offsetHeight and offset width from the UIObject's
 public int getOffsetWidth() {
    return DOM.getElementPropertyInt(getElement(), offsetWidth);
  }

The problem happens when I click on one specific anchor link. The
  pop-up
width is returned correctly in mozilla but in IE it gives me a huge
value(only for this anchor link, for all the other anchors it gives
  back the
proper width).

Is the width of the anchor responsible for this as it only happening
  for a
particular link and on IE?
Is it a kind of known issue that I am not aware of ?

Thanks in advance.

-Tapas

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Re: Flextable memory usage

2010-05-27 Thread Austen

Thanks Bradley, I'll check that out.

The leak was across browsers but FF and Chrome handled it pretty
gracefully and seems to do a decent job of managing memory usage. The
big issue was with IE6 which kept consuming memory until it crashed.


On May 26, 11:32 pm, Bradley bljf...@gmail.com wrote:
 From one of the talks at this year's Google I/O, it is pretty clear
 that widgets are expensive to create and it is much better to keep and
 resume them.  For more information, see the talk titled Measured in
 milliseconds redux

 Did you notice that the memory leak occurred on just one browser or
 across browsers?

 On May 26, 8:40 am, Austen awconsta...@gmail.com wrote:



  To answer my own question, the following seems to be a far better way
  of doing things. Save creating all those new objects...

  public class Memoryleaktest implements EntryPoint {

          private FlexTable flexTable = new FlexTable();
          private HashMapInteger, FlexTableRow rows = new HashMapInteger,
  FlexTableRow();

          public void onModuleLoad() {

                  RootPanel.get().add(flexTable);

                  setupTable();

                  Timer timer = new Timer() {
                          public void run() {
                                  updateTable();
                          }
                  };

                  timer.scheduleRepeating(1); // 10 seconds
          }

          private void setupTable() {
                  for (Integer i = 0; i  50; i++) {
                          FlexTableRow row = new FlexTableRow();

                          flexTable.setWidget(i, 0, row.getTitle());
                          flexTable.setWidget(i, 1, row.getHtml());
                          flexTable.setWidget(i, 2, row.getLabel());

                          rows.put(i, row);
                  }
          }

          private void updateTable() {
                  for (Integer i = 0; i  50; i++) {
                          FlexTableRow row = rows.get(i);

                          row.getTitle().setText(ROW- + i.toString());
                          row.getHtml().setHTML(HTML Test  + i.toString());
                          row.getLabel().setText(Label Test  + 
  i.toString());
                  }
          }

  Any comments/ideas about this approach?

  Thanks

  On May 26, 3:34 pm, Austen awconsta...@gmail.com wrote:

   Hi All,

   We have a problem with memory usage on all browsers when using a
   flextable.

   The table periodically updates over rpc and if left long enough will
   consume all available ram.

   The following example displays the issue.

   public class Memoryleaktest implements EntryPoint {

           private FlexTable flexTable = new FlexTable();

           public void onModuleLoad() {

                   RootPanel.get().add(flexTable);

                   Timer timer = new Timer() {
                           public void run() {
                                   updateTable();
                           }
                   };
                   timer.scheduleRepeating(1); // 10 seconds
           }

           private void updateTable() {
                   flexTable.clear();

                   for (Integer i = 0; i  50; i++) {
                           flexTable.setWidget(i, 0, new InlineLabel(ROW - 
+
   i.toString()));
                           flexTable.setWidget(i, 1, new HTML(Test HTML 
   Widget 1- +
   i.toString()));
                           flexTable.setWidget(i, 2, new InlineLabel(Test 
   InlineLabel Widget
   2- + i.toString()));
                   }
           }

   }

   Now I understand that we're probably going about this all wrong but
   how should we do it?

   Thanks in advance

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Re: How to parse CSS

2010-05-27 Thread Amine Ouahman

Thanks for your answer :)

Does the CssResource feature allow me to get access to a property
value of a selector in the CSS??
Explanation : I want to get the width and the height that I set in my
css, to use them in the java side.

Thank you

On 27 mai, 00:55, Thomas Broyer t.bro...@gmail.com wrote:
 On 26 mai, 16:48, Amine Ouahman amine.aitouah...@gmail.com wrote:

  Hi everybody,

  I'm seeking some ideas about how to parse my CSS files and generate a
  java class.

 If your goal is to generate a CssResource interface, GWT already gives
 you the com.google.gwt.resources.css.InterfaceGenerator tool (launch
 it as java -cp gwt-user.jar
 com.google.gwt.resources.css.InterfaceGenerator)

 Otherwise, you can use CSSParser or Flute (GWT uses a patched version
 of Flute).

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UiBinder performance: Impacted by Dependency Injection (provided=true)?

Hi,

one of the advantages of UiBinder is, that it's building DOM
structures by cramming big strings of HTML into innerHTML attributes
than by a bunch of API calls (http://code.google.com/webtoolkit/doc/
latest/DevGuideUiBinder.html#Overview).

First of all, I want to admit that I don't yet fully understand, at
which point this is done: Is the HTML string produced at compile time
(as far as possible), or only at runtime?

Now my question: I have several nested UiBinder composites, and I'd
prefer to build them in Dependency Injection style [*]. Does this
approach have a negative impact on the performance advantage of
UiBinder?

Thanks
Chris


[*] Here's some simplified code:


public class Outer extends Composite {
...

@UiField(provided=true)
Inner inner;

public Outer(Inner inner) {
 this.inner = inner;
 initWidget(uiBinder.createAndBindUi(this));
}
}

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Re: New open source MVP(UiBinder) GWT Framework with GIN - Handlebars

2010-05-27 Thread Tristan

Hey Wil,

I added a wiki on how to use Place Service in Handlebars, but it's
also a good HOWTO for Place Service implementation in general.

http://code.google.com/p/handlebars/wiki/PlaceServiceOverview

I'd be happy to answer any questions.

On May 26, 7:30 pm, wil.pannell wpann...@pillartechnology.com
wrote:
 Hey Tristan,

 I'm particularly interested in how you implemented the place service.
 What I've seen in other APIs seem excessively overly complex.

 Thanks for your reply,

 Wil

 On May 25, 12:51 pm, Tristan tristan.slomin...@gmail.com wrote:



  Hey Wil,

  Actually it sounds like it ran perfectly :) . That's all it did
  initially. Since it is not very interesting, today, because of your
  feedback, I added a very rudimentary login presenter to the landing
  page which will now take you (no matter what credentials you provide)
  to the dashboard page (and all that says is At Dashboard!). But it
  illustrates how the presenters get hooked into the pages, etc. Is
  there particular functionality you would like to see implemented? That
  will give me a focus area as I continue developing the starter
  project.

  Cheers!

  Tristan

  On May 25, 4:37 am, wil.pannell wpann...@pillartechnology.com
  wrote:

   Tristan,

   Your work looks interesting and I'd like to find out more, but I was
   unable to get your sample app to run correctly.  All I see is a sample
   page that says, Welcome to Handlebars.

   Can you upload eclipse project settings or a maven pom?

   Wil

   On May 1, 4:58 pm, Tristan tristan.slomin...@gmail.com wrote:

First, thanks. Glad to see there's some interest.

I have limited resources, so I want to focus on the important things.
Hence, if you have questions or suggestions, please let me know, that
way I know what to spend time on first.

@Stephen

Unfortunately I'm not an Eclipse Plugin developer, so there's no code
generation going on... yet. Having said that, the whole thing was put
together with code generation in mind by being as declarative as
possible. The specific code for some functionality goes into well
defined areas like onAtPlace() method in presenter for example. So, in
theory, you can declare your entire page, presenter, and view
architecture and then just fill in the bits where they need to go and
it will work. Been doing it by hand and have have a checklist I
follow, but all the boiler plate can (and should) be code generated.
The Eclipse Plugin is definitely on the roadmap (I'll post that on
there soon), but for now it still provides a nice framework for the
client side app.

Handlebars Roadmap:
- Setup a starter handlebars project
- Open source the server side App Engine code

Future Plans:
- Eclipse Plugin

Tristan

On May 1, 8:35 am, Stephen Haberman stephen.haber...@gmail.com
wrote:

 http://code.google.com/p/handlebars/

 Spiffy. The page mentions using Eclipse code generation--I like that.
 What sort of files are you generating?

 - Stephen

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A way to implement place service in GWT

2010-05-27 Thread Tristan

I've written a wiki on how Place Service is implemented in Handlebars.
However, after the fact I realized that it's also a HOWTO document of
a way to implement a place service in general that is fairly robust.

I hope you'll find this document useful, and I'd be happy to answer
any questions or hear your comments.

http://code.google.com/p/handlebars/wiki/PlaceServiceOverview

Cheers!

Tristan

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Re: MVP Framework in GWT 2.1 M1 ?

2010-05-27 Thread pjulien

It exists but the javadoc wasn't included for some reason.  A
presenter is called Activity.  I'm guessing to make it more familiar
to Android development.

You can see the code for activities and places here:

http://code.google.com/p/google-web-toolkit/source/browse/branches/2.1/bikeshed/src/com/google/gwt/?r=8009#gwt/app/place%3Fstate%3Dclosed

On May 20, 4:44 am, metrixon metri...@gmail.com wrote:
 I just downloaded the M1 release ofGWT2.1and was wondering where I
 can find more information on the MVP framework that will be part ofGWT2.1.
 I looked around the Javadocs but did not find anything like it. Is the
 MVP framework already part of the M1 release ?

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Guice and RpcServlet

2010-05-27 Thread hbf

Hi,

I would like to use the new and experimental [1] Direct-Eval RPC of
GWT 2 with server-side Guice. However, I could only find information
on configuring Guice and GWT for the old RPC, see [2]. To inject the
service, the latter blog suggests:

@Singleton
public class GuiceRemoteServiceServlet extends RemoteServiceServlet {
  @Inject
  private Injector injector;

  @Override
  public String processCall(String payload) throws
SerializationException {
try {
  RPCRequest req = RPC.decodeRequest(payload, null, this);

  RemoteService service = getServiceInstance(
req.getMethod().getDeclaringClass());

  return RPC.invokeAndEncodeResponse(service, req.getMethod(),
req.getParameters(), req.getSerializationPolicy());
} catch (IncompatibleRemoteServiceException ex) {
  log(IncompatibleRemoteServiceException in the
processCall(String) method.,
  ex);
  return RPC.encodeResponseForFailure(null, ex);
}
  }

  @SuppressWarnings({unchecked})
  private RemoteService getServiceInstance(Class serviceClass) {
return (RemoteService) injector.getInstance(serviceClass);
  }
}

What is the recommended way to do this with the new RpcServlet instead
of RemoteServiceServlet?

Many thanks,
Kaspar

[1] 
http://code.google.com/webtoolkit/doc/latest/DevGuideServerCommunication.html#DevGuideDeRPC
[2] http://stuffthathappens.com/blog/2009/09/14/guice-with-gwt/

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Re: How to parse CSS

Yup, fairly heavily documented here:
http://code.google.com/webtoolkit/doc/latest/DevGuideClientBundle.html#CssResource

On May 27, 3:45 am, Amine Ouahman amine.aitouah...@gmail.com wrote:
 Thanks for your answer :)

 Does the CssResource feature allow me to get access to a property
 value of a selector in the CSS??
 Explanation : I want to get the width and the height that I set in my
 css, to use them in the java side.

 Thank you

 On 27 mai, 00:55, Thomas Broyer t.bro...@gmail.com wrote:

  On 26 mai, 16:48, Amine Ouahman amine.aitouah...@gmail.com wrote:

   Hi everybody,

   I'm seeking some ideas about how to parse my CSS files and generate a
   java class.

  If your goal is to generate a CssResource interface, GWT already gives
  you the com.google.gwt.resources.css.InterfaceGenerator tool (launch
  it as java -cp gwt-user.jar
  com.google.gwt.resources.css.InterfaceGenerator)

  Otherwise, you can use CSSParser or Flute (GWT uses a patched version
  of Flute).

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GWT 2.1m1/DateTimeFormat - format for full time has changed

Hi,

Some of my unit test failed after switching to GWT 2.1m1. This is due
to the following change:
http://code.google.com/p/google-web-toolkit/source/diff?spec=svn8214r=7629format=sidepath=/trunk/user/src/com/google/gwt/i18n/client/constants/DateTimeConstantsImpl.propertiesold_path=/trunk/user/src/com/google/gwt/i18n/client/constants/DateTimeConstantsImpl.propertiesold=4905

The full format for time has changed from h:mm:ss a v to h:mm:ss
a . The first give me 1:00:00 AM Etc/GMT-1 but the second
1:00:00 AM UTC+1, so the same as the long format.

Is it a regression? or was there a bug before?

Olivier

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Re: Unable to get upload results from FileUpload

Hi Fahim:

Check your server error log.

On Thu, May 27, 2010 at 1:05 AM, Fahim fahimr...@gmail.com wrote:

Hi All,

I am using FileUpload widget to upload a file. Either file is being
uploaded successfully or failed I am not able to get the results using
event.getResults() in onSubmitComplete event because it is always
null. The response type of the service which I am calling to upload is
text/xml. Here is the response copied from fiddler:

HTTP/1.1 200 OK
Date: Wed, 26 May 2010 19:16:42 GMT
Server: Apache
X-UA-Compatible: IE=EmulateIE7
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-
check=0
Connection: close
Content-Type: text/xml

xmlResponsestatuscode500/codemessageAn unknown system error
occurred while processing the request./messagesubcode500/
subcode/status/xmlResponse

Any thoughts why am I not getting the above xml in in
event.getResults()?

Thanks,
Fahim

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Re: Triggering download in GWT via RPC

Hi Andreas:

It's quite possible to ... trigger a download via GWT... You don't say
what MIME type you're wanting. For example, I trigger a download of PDF
document. GWT code cannot handle that, so the trigger is a GWT write to an
IFrame URL. The browser then renders the PDF in that frame.

Perhaps you want to download HTML? If so, you have to stuff those results
into some GWT widget. I usually do something like a MIME type of text/json,
which can be handled using a Javascript overlay type.
{ status:%S-Success, cargo:divstuff/div}

which can handle situations like
{status:%F-Fail,cargo:divrequested data not found/div}

On Thu, May 27, 2010 at 7:17 AM, andreas horst.andrea...@googlemail.comwrote:

Hi,

I'm trying to trigger a download via GWT rpc and/or GWT
RequestBuilder. The motivation of using rpc and/or RequestBuilder is
the ability to send data required for the on-the-fly generated
download files that way.

I already managed to modify the underlying request by using
RequestBuilder as return value of the rpc service method. The request
is routed to a HttpServlet implementing the doPost method. GWT utility
classes are used to obtain the RPCRequest instance and the given
parameters of the rpc service call successfully out of the
HttpRequest. After using the parameters and assembling the file on the
servlet in the doPost method the HttpResponse instance is used to
write that file. Headers 'content-disposition' and 'content-type' are
set accordingly to trigger a download in the browser.

However a download does not start. The response is accessible in the
RequestCallback instance assigned to the request. The point I do not
get about this is why the browser does not react to the content
disposition by downloading the file and instead passing the response
back to the ajax-world. I know that the rpc or request would fail
otherwise but that would be perfectly fine, since no response is
desired but a download.

http://groups.google.com/group/google-web-toolkit/browse_thread/thread/be6f95db3a4313c2/8f10a1c1e6500ccf?lnk=gstq=download#8f10a1c1e6500ccf

http://groups.google.com/group/google-web-toolkit/browse_thread/thread/388e72fb8e652122/dea4693ce6642f2c?lnk=gstq=download#dea4693ce6642f2c

I know that there are solutions with backposts and passing data via
parameters in the request url, but i would love to just stick to one
mechanism which is GWT rpc. I read a lot about that doing what i would
like to do is not possible but no one really said why. I especially
wonder why the browser does not do its thing since it is surely the
one that gets the response before the ajax code doesn't he?

I would like to hear about other solutions and if possible about why
exactly it is not possible to trigger download via GWT rpc. After all
escaping the GWT rpc mechanism on the server side works fine but on
the browser side not. Any ideas?

Greetings,
Andreas

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Add a Widget into/onto Grid without resizing Grid Cell/Column

2010-05-27 Thread spierce7

Hey, I'm making a calendar-like application, and right now I'm just
messing around with different options. One of the things I absolutely
need is to be able to place a group of widgets/panel on a panel on or
over a table/grid that I've set up with click listeners, and have the
Grid not resize to accomodate the size of the widgets/panel. Up until
now I've just been using a single widget for tests, so I've been using
a SimplePanel(), but I need to add a top and a bottom to the widget
now, so I need to use a VerticalPanel(). I've got the program set up
so that when I click a blank cell on the table, it creates a label and
places it there. It's been doing what I wanted it to do, as in adding
the label to the Grid, and not re-sizing the row to fit it's size
(Here is an example: http://internetexample.appspot.com/ If you view
it in Firefox, it does what I want it too, but if you do it in chrome,
it doesn't do what I want it to). How can I properly get it to work in
all browsers, preferably with a label and a few widgets within a
VerticalPanel. Thanks!

~Scott

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Re: How to parse CSS

2010-05-27 Thread Amine Ouahman

I already read the hole doc but still cannot find a solution to my
problem, I'm surely missing something.
here is why I've done : this is an exemple of how I used the
CSSResource feature to retrieve a constant from the css file and use
it in the java side, and it works

public interface Resources extends ClientBundle{
@Source(TestParser.css)
public MyCSSResources css();

}

public interface MyCSSResources extends CssResource{
String testsize();
String small();
}

TestParser.css =
@def small 1px;
.testsize {
font-size: 40px;
}

Somewhere in a java class =
Resources resources = GWT.create(Resources.class);
label1.setStyleName(resources.css().testsize());
label1.setText(resources.css().small());
resources.css().ensureInjected();



Now what I want to do somehow is to retrieve the font-size value
instead of the constant!!
A simple example plz will be great!

Thanks

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Re: onLoad?

Hi,

you find the current javadocs here

http://google-web-toolkit.googlecode.com/svn/javadoc/2.1/index.html?overview-summary.html

http://google-web-toolkit.googlecode.com/svn/javadoc/2.1/com/google/gwt/user/client/ui/Widget.html

and in your downloaded SDK

the behaviour of onLoad and onUnload are documented


Stefan Bachert
http://gwtworld.de

On 27 Mai, 06:43, spierce7 spier...@gmail.com wrote:
 Hey guys, I'm creating a class that extends Label, and for some reason
 whenever I create an instance of it, it doesn't load the onLoad()
 class when it's instantiated. I've got it set up the exact same way I
 have a class that extends grid, that properly uses onLoad, but for
 some reason this isn't.

 The idea occurred to me that I don't even really know what onLoad does
 exactly. What is the difference between onLoad and a constructor, and
 how should I be using them differently? (yes I did a search). Out of
 curiosity how does onModuleLoad() fit into the mix also? Thanks!

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Re: Triggering download in GWT via RPC

2010-05-27 Thread Sripathi Krishnan

The point I do not get about this is why the browser does not react to the
content disposition by downloading the file and instead passing the
response back to the ajax-world... snip ... I read a lot about that doing
what i would like to do is not possible but no one really said why.

Browsers don't allow it because it is a major security issue. If it were
possible, websites would start delivering malware using these mechanisms.
Many people are stupid to just click okay.

There is no way to automatically trigger a file download in a browser. File
download can only begin when the user explicitly takes an action - such as
clicking on a link.

--Sri

On 27 May 2010 19:47, andreas horst.andrea...@googlemail.com wrote:

Hi,

http://groups.google.com/group/google-web-toolkit/browse_thread/thread/be6f95db3a4313c2/8f10a1c1e6500ccf?lnk=gstq=download#8f10a1c1e6500ccf

http://groups.google.com/group/google-web-toolkit/browse_thread/thread/388e72fb8e652122/dea4693ce6642f2c?lnk=gstq=download#dea4693ce6642f2c

Greetings,
Andreas

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Re: Activation of Minimised firefox browser

2010-05-27 Thread Sripathi Krishnan

I don't think it is possible to minimize or maximize a browser through
javascript.

--Sri


On 26 May 2010 09:54, Subbu siva.subraman...@gmail.com wrote:

 Hi,

  If the browser is minimised, I am looking for an solution which
 should activate and show the firefox browser by an event from the
 server.

If the browser overlapped by any other applications, it should
 bring to the forefront of the user immediately.
 Please let me know how to deal this problem with Gwt in firefox.

 Thanks in advance.

 br
 Subbu.

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Re: UiBinder performance: Impacted by Dependency Injection (provided=true)?



On 27 mai, 13:13, Chris Lercher cl_for_mail...@gmx.net wrote:
 Hi,

 one of the advantages of UiBinder is, that it's building DOM
 structures by cramming big strings of HTML into innerHTML attributes
 than by a bunch of API calls (http://code.google.com/webtoolkit/doc/
 latest/DevGuideUiBinder.html#Overview).

 First of all, I want to admit that I don't yet fully understand, at
 which point this is done: Is the HTML string produced at compile time
 (as far as possible), or only at runtime?

Compile-time!
Hint: pass the -gen argument to Compiler and go look at the generated
Java classes.

 Now my question: I have several nested UiBinder composites, and I'd
 prefer to build them in Dependency Injection style [*]. Does this
 approach have a negative impact on the performance advantage of
 UiBinder?

Neither negative nor positive.

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Re: How to parse CSS

Hi Amine,

when you want to get the font-size value, you should do an @def for
this value

.css

@def myFontSize 40px;
..
.testsize {
  font-size: myFontSize;
}

.java
..
label1.setText(resources.css().myFontSize());

or you do it like the way a1decor it does

.css
@eval MyFontSize my.classesWithStaticFunctions.getFontSize();
..
.testsize {
  font-size: MyFontSize;
}

.java
my.classesWithStaticFunctions.getFontSize()  {return 40px;}
...
   label1.setText(my.classesWithStaticFunctions.getFontSize());

With the later you are able to change it before injecting the css.

Stefan Bachert
http://gwtworld.de


On 27 Mai, 17:19, Amine Ouahman amine.aitouah...@gmail.com wrote:
 I already read the hole doc but still cannot find a solution to my
 problem, I'm surely missing something.
 here is why I've done : this is an exemple of how I used the
 CSSResource feature to retrieve a constant from the css file and use
 it in the java side, and it works

 public interface Resources extends ClientBundle{
         @Source(TestParser.css)
         public MyCSSResources css();

 }

 public interface MyCSSResources extends CssResource{
         String testsize();
         String small();

 }

 TestParser.css =
 @def small 1px;
 .testsize {
 font-size: 40px;

 }

 Somewhere in a java class =
 Resources resources = GWT.create(Resources.class);
                 label1.setStyleName(resources.css().testsize());
                 label1.setText(resources.css().small());
                 resources.css().ensureInjected();

 Now what I want to do somehow is to retrieve the font-size value
 instead of the constant!!
 A simple example plz will be great!

 Thanks

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Re: How to parse CSS

2010-05-27 Thread Amine Ouahman

Thank you Stefan :)

On 27 mai, 17:59, Stefan Bachert stefanbach...@yahoo.de wrote:
 Hi Amine,

 when you want to get the font-size value, you should do an @def for
 this value

 .css

 @def myFontSize 40px;
 ..
 .testsize {
   font-size: myFontSize;

 }

 .java
 ..
                 label1.setText(resources.css().myFontSize());

 or you do it like the way a1decor it does

 .css
 @eval MyFontSize my.classesWithStaticFunctions.getFontSize();
 ..
 .testsize {
   font-size: MyFontSize;

 }

 .java
     my.classesWithStaticFunctions.getFontSize()  {return 40px;}
 ...
    label1.setText(my.classesWithStaticFunctions.getFontSize());

 With the later you are able to change it before injecting the css.

 Stefan Bacherthttp://gwtworld.de

 On 27 Mai, 17:19, Amine Ouahman amine.aitouah...@gmail.com wrote:



  I already read the hole doc but still cannot find a solution to my
  problem, I'm surely missing something.
  here is why I've done : this is an exemple of how I used the
  CSSResource feature to retrieve a constant from the css file and use
  it in the java side, and it works

  public interface Resources extends ClientBundle{
          @Source(TestParser.css)
          public MyCSSResources css();

  }

  public interface MyCSSResources extends CssResource{
          String testsize();
          String small();

  }

  TestParser.css =
  @def small 1px;
  .testsize {
  font-size: 40px;

  }

  Somewhere in a java class =
  Resources resources = GWT.create(Resources.class);
                  label1.setStyleName(resources.css().testsize());
                  label1.setText(resources.css().small());
                  resources.css().ensureInjected();

  Now what I want to do somehow is to retrieve the font-size value
  instead of the constant!!
  A simple example plz will be great!

  Thanks

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Re: A way to implement place service in GWT



On 27 mai, 13:41, Tristan tristan.slomin...@gmail.com wrote:
 I've written a wiki on how Place Service is implemented in Handlebars.
 However, after the fact I realized that it's also a HOWTO document of
 a way to implement a place service in general that is fairly robust.

 I hope you'll find this document useful, and I'd be happy to answer
 any questions or hear your comments.

 http://code.google.com/p/handlebars/wiki/PlaceServiceOverview

 Cheers!

Have you measured using a GWT event per place vs. a single GWT event
carrying a Place object? (BTW it would cut the number of classes by 4
--no need for both a AtLandingPage and GoToLandingPage events, and
their corresponding EventHandler interfaces, just a LandingPage place)

I also notice that:
 - the GoToPlace is only used to talk to the place service, how about
having the place service injected and call a goTo() method on it
directly?
 - the GoToPlace request is imperative, it cannot be cancelled (e.g.
you changed some field values and you want to ask the user
confirmation before leaving without saving his changes); this would be
fixed if it wasn't an event fired by the class that triggers it but
by the PlaceService itself.
 - you're forcing everyone to use your #sometoken?
some=querystring=likename=valuepair=parameters kind of history
tokens, what if I'd prefer something like #/documents/some/folder for
instance?

Have you seen the work being done in GWT itself in the bikeshed
project? (look into the branches/2.1 branch in SVN, not the trunk) It
does not yet link places to the browser history but allows previewing
(and cancelling) the GoToPlace event (or equivalent). My own
PlaceManager (at work, not open source) does the same too.

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Re: GWT 2.1m1/DateTimeFormat - format for full time has changed



On 27 mai, 16:02, Olivier Monaco olivier.mon...@free.fr wrote:
 Hi,

 Some of my unit test failed after switching to GWT 2.1m1. This is due
 to the following 
 change:http://code.google.com/p/google-web-toolkit/source/diff?spec=svn8214;...

 The full format for time has changed from h:mm:ss a v to h:mm:ss
 a . The first give me 1:00:00 AM Etc/GMT-1 but the second
 1:00:00 AM UTC+1, so the same as the long format.

 Is it a regression? or was there a bug before?

I suspect locale data has been updated to the latest Unicode CLDR
data.
http://cldr.unicode.org/

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the dropdown menubar on the top of a frame cannot be collapsed

2010-05-27 Thread Mike J

I have a screen with a menu bar on the top of the screen. Below the
menu bar there is a frame within a vertical panel. If clicking one
menu with multiple menuitems and select one item the frame loads a
specified web page, for example, www.google.com. Then the problem
occurred: when I clicked the menu again and the menu dropped down and
the drop down menu is over the top of the frame, the drop down menu
would not  collapse back even if I clicked any where on the frame just
outside of the drop down menu.

The problem would not occur if the frame is replaced by another
widget, for example, a FlexTable.

How can I get the drop down collapse back in that case?

Thanks,

Mike J.

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Re: GWT and Python

2010-05-27 Thread kunal ghosh

was reading about pyjamas.
Quoting from the site mentioned by nacho 
http://ajaxian.com/archives/pyjamas-gwt-for-python
Pyjamas, a sort of GWT for Python
or is pyjamas a complete port of GWT, which can be used from python.

On May 27, 1:29 am, nacho vela.igna...@gmail.com wrote:
 It's not gwt but you can try 
 thishttp://ajaxian.com/archives/pyjamas-gwt-for-python

 On 22 mayo, 23:06, kunal ghosh kunal...@gmail.com wrote: Hi all,
  I was following the Google IO keynotes this year and having done so last
  year also noticed a few things with respect to App
  engine.

  Google has been making a lot of announcements and adding a lot of features
  to GWT, a java based framework. Python on the
  other hand doesn't feature anywhere in google's announcements :( . Does this
  mean that Google is trying to promote GWT+java
  for appengine, in the long run ?

  Also how can i use the features available in GWT using python as a language
  of my choice for app-engine.
  --
  regards
  ---
  Kunal Ghosh
  Dept of Computer Sc.  Engineering.
  Sir MVIT
  Bangalore,India

  Blog:kunalghosh.wordpress.com
  Website:www.kunalghosh.net46.net
  V-card:http://tinyurl.com/86qjyk

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Where to place new Widget class?

2010-05-27 Thread Magnus

Hello,

I am absolutely new to GWT and I would like to start with a generic
panel as a container for my GUI.

So I created a new Panel derived from SimplePanel and added it to my
host page:

final MyPanel p = new MyPanel ();
RootPanel.get(TestContainer).add(p);

Within the panel constructor I create a text box, so that I can verify
that everything works.

However, I wonder where to place my panel class: I placed a class
ClientPanel in the client directory and a class ServerPanel in the
server directory within the eclipse project directory tree.

When I use the ClientPanel, it works. When I use the ServerPanel, I
get errors within eclipse, e. g.
[ERROR] [firstwebapp] Unable to find type
'fwa.Application.client.FirstWebApp'

Any hints?

Thank you
Magnus

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Re: How to achieve traditional website behavior with layout panels?

Hi Dennis,

I still think what traditional behaviour should be. (? not following
the standards?)

However, you don't want scrollbars at your LayoutPanel.

The reason why any widget gets a scrollbar is because it is larger
than its parent and the style overflow is set to auto or scroll.
When the wrong widget get a scrollbar you have to change the size of
the panel (div) hierarchy.
Or you have to allow the parents to grow with its child.

When you do not succeed you need to show us your code or at least the
hierarchy of panels.

Stefan Bachert
http://gwtworld.de

On 26 Mai, 10:33, googelybear googelyb...@gmail.com wrote:
 Hi,

 I am developing a webapp that should behave like a traditional web
 page, meaning that when the content grows in height the browser should
 display a vertical scroll bar. Unfortunately I was foolish and jumped
 right in on the new, shiny layout panels. As I found out later these
 are not suitable for me, as they create a more application-like look
 and feel with scrollbars displayed in the individual gwt panels
 instead of the browser (try resizing e.g. google wave - When the
 available area is too small scrollbars will appear inside all the
 panels, the browser will never display any scrollbars) and also they
 are working with lots of fixed sizes (in my case the content is
 dynamic).
 I tried to achieve the traditional behavior with my LayoutPanels but
 failed. I couldn't get the browser to display scrollbars, only inner-
 panel scrolling, and stuffing a layoutpanel inside a scrollpanel is
 not the desirable approach (stuffing layout panels inside non-layout
 panels usually ended badly for me..).
 So my conclusion is to revert to the old school panels. But I am
 afraid that support of these will be dropped soon. What do you think?
 Are there better alternatives? Anyone fought with a similar problem?

 thanks for any suggestions,
 Dennis

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Re: UIBinder, Refresh and binding

2010-05-27 Thread Artem

I am not looking for 2 lines solution for whole problem. I am looking
for solution which can be implemented once and then allow to bind
objects in 2 lines... And from what I understand - changing code of
UIBinder would be one of the ways to make this solution.

Can you help me with some links/examples/descriptions of changing
UiBinder code and/or implementing my own UiBinder?

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Re: Where to place new Widget class?

2010-05-27 Thread Pavel Byles

Could you say what the purpose of a ServerPanel is?
Everything for GWT afaik should be placed in the client or shared directory.
I don't think there is much sense in using client-side ui objects on the
server.

On Thu, May 27, 2010 at 11:55 AM, Magnus alpineblas...@googlemail.comwrote:

Hello,

I am absolutely new to GWT and I would like to start with a generic
panel as a container for my GUI.

So I created a new Panel derived from SimplePanel and added it to my
host page:

final MyPanel p = new MyPanel ();
RootPanel.get(TestContainer).add(p);

Within the panel constructor I create a text box, so that I can verify
that everything works.

However, I wonder where to place my panel class: I placed a class
ClientPanel in the client directory and a class ServerPanel in the
server directory within the eclipse project directory tree.

When I use the ClientPanel, it works. When I use the ServerPanel, I
get errors within eclipse, e. g.
[ERROR] [firstwebapp] Unable to find type
'fwa.Application.client.FirstWebApp'

Any hints?

Thank you
Magnus

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Re: Where to place new Widget class?

2010-05-27 Thread Magnus

As I said, I am absolutely new to GWT. I don't know, which code to put
on the server and which on the client. Is there a basic rule, then
please let me know.

In general, I would try to put as much as possible to the server, but
I cannot really judge, what fits where best...

Thank you
Magnus

On May 27, 7:10 pm, Pavel Byles pavelby...@gmail.com wrote:
Could you say what the purpose of a ServerPanel is?
Everything for GWT afaik should be placed in the client or shared directory.
I don't think there is much sense in using client-side ui objects on the
server.

On Thu, May 27, 2010 at 11:55 AM, Magnus alpineblas...@googlemail.comwrote:

Hello,

I am absolutely new to GWT and I would like to start with a generic
panel as a container for my GUI.

So I created a new Panel derived from SimplePanel and added it to my
host page:

final MyPanel p = new MyPanel ();
RootPanel.get(TestContainer).add(p);

Within the panel constructor I create a text box, so that I can verify
that everything works.

However, I wonder where to place my panel class: I placed a class
ClientPanel in the client directory and a class ServerPanel in the
server directory within the eclipse project directory tree.

When I use the ClientPanel, it works. When I use the ServerPanel, I
get errors within eclipse, e. g.
[ERROR] [firstwebapp] Unable to find type
'fwa.Application.client.FirstWebApp'

Any hints?

Thank you
Magnus

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Re: GWT with JPA - no persistence provider

Hi,

go to the warnings (e.g. panel Markers), use Quick Fix, then you can
choose to include your jpa-project into WEB-INF/lib

Stefan Bachert
http://gwtworld.de

On 13 Mai, 14:25, maliniak malini...@gmail.com wrote:
 GWT with JPA

 There are two projects in my eclipse workspace, let's name them:

 -JPAProject
 -GWTProject

 JPAProject contains JPA configuration stuff (persistence.xml, entity
 classes and so on). GWTProject is an examplary GWT project (taken from
 official GWT tutorial).

 Both projects work fine alone. That is, I can create EMF
 (EntityManagerFactory) in JPAProject and get entities from the
 database. GWTProject works fine too, I can run it, fill the field text
 in the browser and get the response.

 My goal is to call JPAProject from GWTProject to get entities. But the
 problem is that when calling DAO, I get the following exception:

 -
 [WARN] Server class
 'com.emergit.service.dao.profile.ProfileDaoService' could not be found
 in the web app, but was found on the system classpath
    [WARN] Adding classpath entry 'file:/home/maliniak/workspace/
 emergit/build/classes/' to the web app classpath for this session
    For additional info see: file:/home/maliniak/.eclipse/
 org.eclipse.platform_3.5.0_155965261/plugins/
 com.google.gwt.eclipse.sdkbundle.2.0.3_2.0.3.v201002191036/gwt-2.0.3/
 doc/helpInfo/webAppClassPath.html
 [WARN] Server class 'javax.persistence.Persistence' could not be found
 in the web app, but was found on the system classpath
    [WARN] Adding classpath entry 'file:/home/maliniak/workspace/
 libraries/EclipseLink%202.0.2/eclipselink/jlib/jpa/
 javax.persistence_2.0.0.v201002051058.jar' to the web app classpath
 for this session
    For additional info see: file:/home/maliniak/.eclipse/
 org.eclipse.platform_3.5.0_155965261/plugins/
 com.google.gwt.eclipse.sdkbundle.2.0.3_2.0.3.v201002191036/gwt-2.0.3/
 doc/helpInfo/webAppClassPath.html
 [WARN] /gwttest/greet
 javax.persistence.PersistenceException: No Persistence provider for
 EntityManager named emergitPU
         at javax.persistence.Persistence.createEntityManagerFactory(Unknown
 Source)
         at javax.persistence.Persistence.createEntityManagerFactory(Unknown
 Source)
         at
 com.emergit.service.dao.profile.JpaProfileDaoService.init(JpaProfileDaoService.java:
 19)
         at
 pl.maliniak.server.GreetingServiceImpl.init(GreetingServiceImpl.java:
 21)
         at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
 Method)
         at
 sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:
 39)
         at
 sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:
 27)
         at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
         at java.lang.Class.newInstance0(Class.java:355)
         at java.lang.Class.newInstance(Class.java:308)
         at org.mortbay.jetty.servlet.Holder.newInstance(Holder.java:153)
         at
 org.mortbay.jetty.servlet.ServletHolder.getServlet(ServletHolder.java:
 339)
         at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:
 463)
         at
 org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:
 362)
         at
 org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:
 216)
         at
 org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:
 181)
         at
 org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:
 729)
         at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:
 405)
         at
 org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:
 152)
         at
 org.mortbay.jetty.handler.RequestLogHandler.handle(RequestLogHandler.java:
 49)
         at
 org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:
 152)
         at org.mortbay.jetty.Server.handle(Server.java:324)
         at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:
 505)
         at org.mortbay.jetty.HttpConnection
 $RequestHandler.content(HttpConnection.java:843)
         at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:647)
         at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211)
         at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:380)
         at
 org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:
 395)
         at org.mortbay.thread.QueuedThreadPool
 $PoolThread.run(QueuedThreadPool.java:488)
 [ERROR] 500 - POST /gwttest/greet (127.0.0.1) 3812 bytes
    Request headers
       Host: 127.0.0.1:
       User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:
 1.9.2.3) Gecko/20100423 Ubuntu/10.04 (lucid) Firefox/3.6.3
       Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/
 *;q=0.8
       Accept-Language: en-us,en;q=0.5
       Accept-Encoding:

Re: A way to implement place service in GWT

2010-05-27 Thread Tristan

Thanks Thomas,

Lots to consider here, let me take a look at the references you
pointed out and then I'll be better able to respond. I'm all for
making things simpler.

On May 27, 11:08 am, Thomas Broyer t.bro...@gmail.com wrote:
 On 27 mai, 13:41, Tristan tristan.slomin...@gmail.com wrote:

  I've written a wiki on how Place Service is implemented in Handlebars.
  However, after the fact I realized that it's also a HOWTO document of
  a way to implement a place service in general that is fairly robust.

  I hope you'll find this document useful, and I'd be happy to answer
  any questions or hear your comments.

 http://code.google.com/p/handlebars/wiki/PlaceServiceOverview

  Cheers!

 Have you measured using a GWT event per place vs. a single GWT event
 carrying a Place object? (BTW it would cut the number of classes by 4
 --no need for both a AtLandingPage and GoToLandingPage events, and
 their corresponding EventHandler interfaces, just a LandingPage place)

 I also notice that:
  - the GoToPlace is only used to talk to the place service, how about
 having the place service injected and call a goTo() method on it
 directly?
  - the GoToPlace request is imperative, it cannot be cancelled (e.g.
 you changed some field values and you want to ask the user
 confirmation before leaving without saving his changes); this would be
 fixed if it wasn't an event fired by the class that triggers it but
 by the PlaceService itself.
  - you're forcing everyone to use your #sometoken?
 some=querystring=likename=valuepair=parameters kind of history
 tokens, what if I'd prefer something like #/documents/some/folder for
 instance?

 Have you seen the work being done in GWT itself in the bikeshed
 project? (look into the branches/2.1 branch in SVN, not the trunk) It
 does not yet link places to the browser history but allows previewing
 (and cancelling) the GoToPlace event (or equivalent). My own
 PlaceManager (at work, not open source) does the same too.

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Re: UiBinder performance: Impacted by Dependency Injection (provided=true)?

Thanks.


On May 27, 5:53 pm, Thomas Broyer t.bro...@gmail.com wrote:
 On 27 mai, 13:13, Chris Lercher cl_for_mail...@gmx.net wrote:

  Hi,

  one of the advantages of UiBinder is, that it's building DOM
  structures by cramming big strings of HTML into innerHTML attributes
  than by a bunch of API calls (http://code.google.com/webtoolkit/doc/
  latest/DevGuideUiBinder.html#Overview).

  First of all, I want to admit that I don't yet fully understand, at
  which point this is done: Is the HTML string produced at compile time
  (as far as possible), or only at runtime?

 Compile-time!
 Hint: pass the -gen argument to Compiler and go look at the generated
 Java classes.

  Now my question: I have several nested UiBinder composites, and I'd
  prefer to build them in Dependency Injection style [*]. Does this
  approach have a negative impact on the performance advantage of
  UiBinder?

 Neither negative nor positive.

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Preliminary tech evaluation results

2010-05-27 Thread Donald McLean

I just wanted to say that we were able to implement our limited set of
functionality with very little trouble. GWT gets a full pass.

We're going to try two other technologies before we make our choice.

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Re: MVP Framework in GWT 2.1 M1 ?

2010-05-27 Thread Anton Tanasenko

Actually, it is on the javadoc page at
http://google-web-toolkit.googlecode.com/svn/javadoc/2.1/index.html
under com.google.gwt.app.place package.
It also includes PlaceManager, Activity (presenter) mappings

Bikeshed example, though clumpy, sheds plenty of light on how it can
be used.

On May 27, 3:24 pm, pjulien pjul...@gmail.com wrote:
 It exists but the javadoc wasn't included for some reason.  A
 presenter is called Activity.  I'm guessing to make it more familiar
 to Android development.

 You can see the code for activities and places here:

 http://code.google.com/p/google-web-toolkit/source/browse/branches/2

 On May 20, 4:44 am, metrixon metri...@gmail.com wrote:



  I just downloaded the M1 release ofGWT2.1and was wondering where I
  can find more information on the MVP framework that will be part ofGWT2.1.
  I looked around the Javadocs but did not find anything like it. Is the
  MVP framework already part of the M1 release ?

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How to create a large table?

2010-05-27 Thread csaba

Hello there,

I'm guessing this is a simple problem, but I can't solve it for days
and I don't know what else to do.

i'm creating a new widget. I'm using the UiBinder with a HTMLPanel,
and in this panel I've created a table. This table has around 50 rows
and 4 columns. I need to have access to each cell to be able to set
its content.

So first I've tried with a simple approach: each cell contains a span
id=xxx/span. On the Java side, I initialize the widget with
initWidget(uiBinder.createAndBindUi(this)); and then set the content
of each span with

RootPanel.get(xxx).add(new Label(xxx));

The problem was that RootPanel.get(xxx) will always return null. I
was thinking that this is because the widget hasn't yet been added to
its parent component (at that point), so the xxx field hasn't been
attached to the DOM tree.

I've tried a different approach. First I've added the widget, and then
I called something like an initInternalComponents() method, which did
the RootPanel.get(xxx) thing. In this case, I got an exception A
widget that has an existing parent widget may not be added to the
detach list

After several hours of trying to fix this, I gave up and tried another
approach.

I replaced all the span tags with g:Label ui:field=xxx/. On the
Java side, I declared all 200+ components as a @UiField Label xxx.
This did work.

The problem now is how to access each field. Let's say I want to set
the text of the cell in row 35, column 2. In that case, I'd have a
label with the name field35by2 declared as an @UiField. What I was
thinking of doing is using reflection:

getClass().getField(field+row+by+column).get(this)

This would actually work in a normal Java application, but GWT doesn't
support reflection, so now I'm back to where I've started 2 days ago.

So can anyone help me how to solve this problem? I've tried a table
component but it wasn't what I wanted, it restricted me too much in
accessing a specific cell, or adding random components to different
cells (in the end, I'd also have TextFields, Buttons, ListBoxes in
this tables).

An ideal solution would be to have
Table table = new Table();
for (int row=0; row50; row++) {
  table.newRow();
  for (int col=0; col50; col++) {
  Cell cell = table.newCell();
  cell.add( new Label(xxx ) );
  }
}

and after that, I'd just do table.getCell(35, 2).getWidget() to obtain
the Label or whatever.

How to do this?

Thanks in advance for any help!
Csaba

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Re: gwt-html5-media

2010-05-27 Thread Denglin Chen

Are you Qi Jiang?

This is Denglin Chen from CO

From: Mike Jiang mikej1...@gmail.com
To: google-web-toolkit@googlegroups.com
Sent: Wed, May 26, 2010 2:45:09 PM
Subject: Re: gwt-html5-media

It's a very good try. I was wondering how I can get the whole thing as a 
project from within the Eclipse without downloading them piece by piece?

Thanks,

Mike J. 

On Wed, May 26, 2010 at 4:16 PM, Mark  Renouf mark.ren...@gmail.com wrote:

I've been sitting on a couple widgets I developed for a little bit but
haven't yet put to good use, so I decided to put them out there and
see if people find them useful. With HTML5 media capabilities now in
nearly every modern browser (And IE9 on the way), I felt it's time to
get this out there.

This library handles the Audio and Video tags, as introduced by the
HTML5 specification. Each have a large number of events which can be
used to build very responsive custom controls. All of the documented
events are implemented using the standard GWT 1.6+ Event Handler
mechanisms. Events include information on content metadata, buffering,
playback position, and even methods to adjust the playback speed (if
your browser properly implements this).

The code is available from GitHub.

http://github.com/tweakt/gwt-html5-media

Please take a look, try it out and let me know if you find this
useful. I'd love some feedback and patches of course are always
welcome.

Thanks!

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Is there a way to wait a RequestBuilder action finished and then do next RequstBuilder action?

2010-05-27 Thread recoco

I'm using writing a login process from a remote server with GWT. The
process is that client get a token first and then use this token and
username to login in the server. So I wrote two methods. One is
getToken , another is postLogin. Both use RequestBuider to communate
to the remote server and should be executed orderly. But I found that
POST action which is postLogin always execute before getLogin. The
postLogin method will fail because the token is still not returned
from the server.
So, how to wait the first action finished and the perform the second
one? Thanks in advance.

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How to center a VerticalPanel on page with UiBinder

2010-05-27 Thread Mark

Hello,

I am new to gwt and I hope you can help me. I want to center a
VerticalPanel on the page.

g:VerticalPanel ui:field=vertialPanel !-- this panel should be in
the middle of the page --
g:Label Login Settings/g:Label
g:Labeltitle/g:Label
g:Labelplaceholder/g:Label
g:TextAreatext1/g:TextArea
g:TextAreatext2/g:TextArea
g:Labelstats/g:Label
/g:VerticalPanel

I tried several things like:

ui:style
.centerStyle {
width: 800px;
margin: 0 auto 0 auto;
}
/ui:style
g:VerticalPanel ui:field=vertialPanel class='{style.centerStyle}'

or

@UiField
VerticalPanel vertialPanel;

public void onModuleLoad() {

vertialPanel.setHorizontalAlignment(HasHorizontalAlignment.ALIGN_CENTER);
vertialPanel.setWidth(100%);
RootLayoutPanel.get().add(uiBinder.createAndBindUi(this));
}

My solutions all ended up with a page showing nothing...
Can you perhaps give me a hint where to read more about this hole Ui
Binder stuff? I think the google page is not very detailed...

Thank you very much.

Mark

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Re: GWT, database connection on the server side

2010-05-27 Thread Yau

1. Make sure you are NOT using app engine.  It took me a damn whole
day to find out that app engine doesn't support db connection other
than big table.
2. Try putting the mysql connector jar under war\web-inf\lib.


On May 26, 3:22 am, LucHub luca.abb...@gmail.com wrote:
 Hi all,

 I have a RPC to get data from the server. On the client side I ask for
 the 'server' method. On the server side, once called, the service has
 to read a DB, let's say a mysql db. The Java driver is on my
 classpath. When on the server side I write Class.forName(...the
 driver class...) I get the java.lang.ClassNotFoundException for the
 driver's class. Where ma I wrong? The server side is not compiled to
 javascript, so it should work. Does GWT behave in a different way from
 the 'classpath' point of view compared to a Desktop application?

 Thanks a lot

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No new web application project button

2010-05-27 Thread Andrew

I just recently installed Eclipse 3.5 on Windows 7. I followed the
instructions on installing GWT plugin and SDK and it seems to have
worked fine, however I do not have the option to create a new web
application project or anything associated with GWT. What could I have
done wrong to cause this and what can I do to fix it?

Thanks,

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GWT List box help

2010-05-27 Thread Pinzine

Hi,

I am having issue with GWT List box. I want to move the selected item
from one list box to other list box.After adding into the other
listbox , i am removing from the source.But it is not working as
expected. can you please let me know what needs to corrected in this
code.


Code:

ListBox source = new ListBox(true);
ListBox destination = new ListBox(true);

for (int i = 0; i  5; ++i) {
source.add(i);
}

onchange event, I am doing the following:

for (int i = 0; i  source.getItemCount(); ++i) {

if (source.isItemSelected(i)) {

destination.addItem(source.getItemText(i));
source.removeItem(i);
}
else
{
GWT.log(non selected Item :  + 
source.getItemText(i)) ;
}
}

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Re: GWT Hibernate Project Structure

2010-05-27 Thread Yau

I haven't tried Maven but I'm using GWT + Hibernate3 + Gilead.  It's
very difficult to setup Gilead as the example provided by GWT is very
very outdated and no longer compatible.  It took me 2 days to figure
out how to set it up with the correct jar, import path and syntax.  If
you're still interested in Gilead, I can provide some info.

On May 25, 9:38 pm, Maurice Nee lyden...@gmail.com wrote:
 Thanks Gabriel,

 I've read differing opinions on whether client and server code should
 be split into two projects. At this point,
 I really don't care which about which approach I use as long as I get
 something up and running that is error
 free. Could someone explain to me a specific procedure for setting up
 a GWT + Maven2 + Hibernate3
 project in Eclipse? For instance, if I were to use only one project,
 do I create a new GWT project with the
 GWT Eclipse plugin and then modify its directory structure to conform
 to Maven's standard directory layout?
 Or, do I create a Maven project with the m2eclipse plugin and then
 enable GWT in that project? Frankly, I'm
 not sure where the best place to start is. This is my first project
 using multiple technologies together, and
 although I feel like I understand a good deal of how these
 technologies work individually, I don't understand
 how to make them work together. Any help would be most appreciated.

 On May 22, 10:07 am, Gabriel guz...@gmail.com wrote:





  Hi,

  Do you have a reason for splitting the application into two projects?
  If not, there is nothing preventing you from using a single project
  for both client and server. If you do need to have two projects, you
  can use two (server and client) or three (server, client and common)
  modules under one maven project and define the dependencies among them
  (if you hadn't used Maven, you could have used the IDE to define the
  dependencies between projects). I suggest you read the documentation
  here:http://code.google.com/eclipse/docs/users_guide.html

  On May 21, 6:20 am, Maurice Nee lyden...@gmail.com wrote:

   Hi,

   This is my first ever forum post. I really need some help with
   understanding how to setup aGWT2.0 Hibernate3 project. I understand
   theGWTRPC mechanism and the problems with serializingHibernate
   POJOs. I would prefer to use DTO's rather than Gilead or Dozer. So
   far, I have aHibernateProject built with Maven2 in Eclipse using the
   m2eclipse plugin and the HibernateTools plugin for Eclipse. I also
   have aGWT2.0 project built with theGWTplugin for Eclipse. I'm
   using MySql as the RDBMS. What I don't understand is how to setup,
   configure, and deploy the two projects in such a way that they can
   communicate with each other.

   Let's say with the above setup, I'm trying to persist a Person object
   that has only an id, and a name as fields. In myHibernateproject, I
   would create a Person.hbm.xmlHibernatemapping document, and then
   generate the correspondingHibernateJava POJO and MySql table. Then,
   in myGWTproject, I would create a serializable PersonDTO.java class
   that can be sent 'across the wire' to and from the server viaGWTRPC.
   Then, for simplicity's sake, let's say that in the client package of
   myGWTproject I create a CreatePersonService.java interface and a
   CreatePersonServiceAsync.java interface with one method, void
   createPerson(). I would then need a CreatePersonServiceImp.java class
   on the server side that implements createPerson(). Fine, but here's
   where I get confused.

   If the createPersonServiceImp.java class is going to transform a
   PersonDTO.java class into itsHibernatePOJO equivalent, then it needs
   to utilize classes from both myGWTEclipse project andHibernate
   Eclipse project. So which project do I put it in? It needs to have
   access toGWTclasses like PersonDTO, AsyncCallback and other RPC
   classes. It also needs access toHibernateclasses like
   SessionFactory, Transaction, etc. So it needs to have access to myGWT
   jars andHibernatejars which are in two separate projects. How do do
   I link them so that CreatePersonServiceImp.java has access to all the
   libraries it needs. Finally, how do I correctly merge both of these
   projects into one WAR file for deploying onto a server? Or am I way
   off track?

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Do all classes in the a project need to be under a specific folder?

2010-05-27 Thread Karl San Gabriel

Hi Team,

I am new to GWT and we are trying to port one of our smallest web
application to GWT.

We have the file Project.gwt.xml which was created via the
webAppCreator with the following entry-point:

entry-point class='com.project.web.client.Project'/

Some of the other classes are located in com.project.hr.bean package.

The following is the error I get during build process:

D:\Profiles\user1\workspace\projectant
D:\Program Files\Java\jdk1.6.0_20
Buildfile: build.xml
libs:
javac:
gwtc:
 [java] Compiling module com.onlineoffice.web.OnlineOffice
 [java]Validating newly compiled units
 [java]   [ERROR] Errors in 'file:/D:/Profiles/user1/workspace/
project/src/com/project/web/client/DepartmentService.java'
 [java]  [ERROR] Line 8: No source code is available for
type com.project.hr.bean.DepartmentBean; did you forget to inherit a
required module?
 [java]Finding entry point classes

In this case, does gwtc look for class files only in
com.onlineoffice.web path?
How can I reference the com.project.hr.bean.DepartmentBean so that I
can use it in DepartmentService.java?

Thank You,
Karl



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Re: Extending the 'Contact: MVP' example

2010-05-27 Thread Josh

I to would like to use MVP but find that i'm unable to present more
than one view on the screen at a time. I would like to have 3-5 panels
loading widgets based on selections in other panels. I attempted to
create a presenter/view (just to test) that had both contact edit and
contact list. The issue i ran into was the RPC fired i believe but the
view never updated with the data. I haven't use GWT long enough to
know the best way to ask the question but has anyone found a way to
allow more than one View Presenter without creating a single Presenter
to manage each of the views? I Was looking into HMVC but still unsure
how to approach this.

On Apr 13, 10:15 am, Sean C. sean.cra...@gmail.com wrote:
 The problem is that only one presenter can be active at a given time.
 If a presenter is controlling the left, right and center column, even
 handing the center column container to another presenter will not
 result in the original presenter giving up control or you get the
 effect of one view being drawn followed by the second view quickly
 replacing it.

 I ended up implementing the left and right columns as pure HTML+CSS
 and used JSNI or the History mechanism to trigger the appropriate View
 +Presenter to affect the center column. This way no presenter is
 controlling the left and right columns.

 Sean C.

 On Apr 12, 2:13 pm, Brian Reilly brian.irei...@gmail.com wrote:



  I think you should be able to do this pretty easily by putting
  something that implements HasWidgets (such as SimplePanel, FlowPanel,
  etc.) in your center column. You can then pass that container into
  your presenter as the place where its content should live. That should
  leave the other things that you've added to the RootPanel in place
  when you switch presenters for the center column.

  -Brian

  On Apr 10, 3:24 pm, Sean C. sean.cra...@gmail.com wrote:

   Having a similar problem with creating Composite Views backed by their
   respective Presenters.

   The bug in DockPanelLayoutPanel for Java 5 does not help and I don't
   have the option to switch to Java 6 but that is a separate 
   discussion:http://code.google.com/p/google-web-toolkit/issues/detail?id=4254

   Back to the problem: the Home Page is composed of three columns with
   the East and West columns being static HTML + CSS as well as some
   dynamic content (Vertical Panels), that affects the content of the
   Center column. Yes, JSNI is being used here.

   E.g: clicking the Login button in the West column presents a Login
   form in the Center column. The Home Page is one View + Presenter but
   the Login form is a separate View + Presenter. They do not play
   together and the Home View + Presenter always override the other Views
   + Presenters. Even tried placing separate DIV hooks in the HTML page
   to get the different views to attach to different nodes in the DOM but
   to no avail.

   Several options that are being tried and tested:
   1. Play directly with the DOM (class) to swap widgets but then you
   just end up having one View + Presenter and a lot of widgets.
   2. Creating a parent class for all Views and Presenters that contains
   the logic and content for the East and West Panels and then attach the
   new Views directly to the RootPanel. This is defeating the purpose of
   AJAX as it is equivalent to redrawing the page with the exception of
   the static parts.
   3. Go back to the drawing board by looking at the options 
   available:http://martinfowler.com/eaaDev/uiArchs.html

   Derek Greer has something that might 
   inspire:http://www.aspiringcraftsman.com/2007/08/interactive-application-arch...

   A .NET centric post about 
   this:http://bradwilson.typepad.com/blog/2008/06/composite-views.html

   Dolphin SmallTalk based discussion on 
   CompositeMVP:http://www.mimuw.edu.pl/~sl/teaching/00_01/Delfin_EC/Patterns/Composi

   Sean C.

   On Mar 18, 1:29 pm, Fabio Kaminski fabiokamin...@gmail.com wrote:

As far as i understand you have windows that contain widgets... like:

MainWidgetContainer (which owns) LoginWidget, HeaderWidget and so on..
LogoutWidgetContainer (owns) LogoutWidget, ComeBackSoonMessageWidget, 
etc..

if is that the case, you would only call the go() which means
RootPanel.get().add()
when you wanna change from one widget container to another...
MainWidgetContainer - LogoutWidgetContainer
not LoginWidget  HeaderWidget or LogoutWidget...

as soon you establish this rule (you can even restrict go() method to
allowing only widget containers)
if you dont do it yet.. the only thing you need ins to assemble the
Containers.. like:

public class MainView extends Composite implements Display {

   final LoginView loginView;
   final HeaderView headerView;

  (add those to this widget)
  (...)

}

Fabio Kaminski

On Thu, Mar 18, 2010 at 2:06 PM, Brian Reilly 
brian.irei...@gmail.comwrote:

 It seems to me like you need a supervising

Re: Do all classes in the a project need to be under a specific folder?

All client side code, including any imported classes, must either
reside in the client directory below the Project.gwt.xml file, or in
other paths indicated in that file using the directive source
path=.../.  Importantly, all client code must adhere to the
restrictions of the GWT compiler, such as only using JRE classes it
emulates, indicated here: 
http://code.google.com/webtoolkit/doc/latest/RefJreEmulation.html.
So, first ensure that you actually intend these classes to be on the
client side, and if so include them in your xml module definition
using the source directive.

This is documented here:
http://code.google.com/webtoolkit/doc/latest/DevGuideOrganizingProjects.html#DevGuideModuleXml

On May 26, 3:53 pm, Karl San Gabriel karl.sangabr...@gmail.com
wrote:
 Hi Team,

 I am new to GWT and we are trying to port one of our smallest web
 application to GWT.

 We have the file Project.gwt.xml which was created via the
 webAppCreator with the following entry-point:

 entry-point class='com.project.web.client.Project'/

 Some of the other classes are located in com.project.hr.bean package.

 The following is the error I get during build process:

 D:\Profiles\user1\workspace\projectant
 D:\Program Files\Java\jdk1.6.0_20
 Buildfile: build.xml
 libs:
 javac:
 gwtc:
      [java] Compiling module com.onlineoffice.web.OnlineOffice
      [java]    Validating newly compiled units
      [java]       [ERROR] Errors in 'file:/D:/Profiles/user1/workspace/
 project/src/com/project/web/client/DepartmentService.java'
      [java]          [ERROR] Line 8: No source code is available for
 type com.project.hr.bean.DepartmentBean; did you forget to inherit a
 required module?
      [java]    Finding entry point classes

 In this case, does gwtc look for class files only in
 com.onlineoffice.web path?
 How can I reference the com.project.hr.bean.DepartmentBean so that I
 can use it in DepartmentService.java?

 Thank You,
 Karl

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Re: How to create a large table?

Wow seems you're doing this the really hard way..

Grid grid = new Grid(50, 4);
for (int row = 0; row  50; row++)
{
  for (int col = 0; col  4; col++)
  {
grid.setWidget(row, col, new Label(row +  x  + col));
  }
}

On May 27, 2:28 am, csaba gcsa...@gmail.com wrote:
 Hello there,

 I'm guessing this is a simple problem, but I can't solve it for days
 and I don't know what else to do.

 i'm creating a new widget. I'm using the UiBinder with a HTMLPanel,
 and in this panel I've created a table. This table has around 50 rows
 and 4 columns. I need to have access to each cell to be able to set
 its content.

 So first I've tried with a simple approach: each cell contains a span
 id=xxx/span. On the Java side, I initialize the widget with
 initWidget(uiBinder.createAndBindUi(this)); and then set the content
 of each span with

 RootPanel.get(xxx).add(new Label(xxx));

 The problem was that RootPanel.get(xxx) will always return null. I
 was thinking that this is because the widget hasn't yet been added to
 its parent component (at that point), so the xxx field hasn't been
 attached to the DOM tree.

 I've tried a different approach. First I've added the widget, and then
 I called something like an initInternalComponents() method, which did
 the RootPanel.get(xxx) thing. In this case, I got an exception A
 widget that has an existing parent widget may not be added to the
 detach list

 After several hours of trying to fix this, I gave up and tried another
 approach.

 I replaced all the span tags with g:Label ui:field=xxx/. On the
 Java side, I declared all 200+ components as a @UiField Label xxx.
 This did work.

 The problem now is how to access each field. Let's say I want to set
 the text of the cell in row 35, column 2. In that case, I'd have a
 label with the name field35by2 declared as an @UiField. What I was
 thinking of doing is using reflection:

 getClass().getField(field+row+by+column).get(this)

 This would actually work in a normal Java application, but GWT doesn't
 support reflection, so now I'm back to where I've started 2 days ago.

 So can anyone help me how to solve this problem? I've tried a table
 component but it wasn't what I wanted, it restricted me too much in
 accessing a specific cell, or adding random components to different
 cells (in the end, I'd also have TextFields, Buttons, ListBoxes in
 this tables).

 An ideal solution would be to have
 Table table = new Table();
 for (int row=0; row50; row++) {
   table.newRow();
   for (int col=0; col50; col++) {
       Cell cell = table.newCell();
       cell.add( new Label(xxx ) );
   }

 }

 and after that, I'd just do table.getCell(35, 2).getWidget() to obtain
 the Label or whatever.

 How to do this?

 Thanks in advance for any help!
 Csaba

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Re: GWT List box help

You're incrementing i while removing items, so always skip checking an
item right after one gets removed.  You can just traverse the selected
items directly:

int i;
while ((i = source.getSelectedItem()) = 0)
...

On May 27, 1:31 am, Pinzine emailtomu...@gmail.com wrote:
 Hi,

 I am having issue with GWT List box. I want to move the selected item
 from one list box to other list box.After adding into the other
 listbox , i am removing from the source.But it is not working as
 expected. can you please let me know what needs to corrected in this
 code.

 Code:

         ListBox source = new ListBox(true);
         ListBox destination = new ListBox(true);

         for (int i = 0; i  5; ++i) {
         source.add(i);
         }

         onchange event, I am doing the following:

                         for (int i = 0; i  source.getItemCount(); ++i) {

                                 if (source.isItemSelected(i)) {
                                         
 destination.addItem(source.getItemText(i));
                                         source.removeItem(i);
                                 }
                                 else
                                 {
                                         GWT.log(non selected Item :  + 
 source.getItemText(i))       ;
                                 }
                         }

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Disable/Enable CSS obfuscating in gwt.xml ?

2010-05-27 Thread Ed

How is it possible to disable/enable CSS obfuscating in the gwt.xml
file ?

This should be very handy as I have many css styles that aren't
allowed to be obfuscated during testing as they are used by Selenium.
At the moment I disable obfuscating with the annotation @external, but
that is fixed. I would love if this would be adjustable in the gwt.xml
file.

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Fastest way to create lots of similar elements

Hi,

I need to create lots (hundreds) of image tags, and attach them
dynamically to several plain div class=xy/div elements:

div class=xy
  img src=images/a.gif style=top: 1em;/
  img src=images/a.gif style=top: 2em;/
  img src=images/b.gif style=top: 3em;/
  ...
/div
...


The img tags can have only two different src urls. But each needs
individual style attributes (for absolute positioning).

Question:
What would be the fastest (and preferably clean) way to do that?

   A) GwtQuery (aka GQuery)?
   B) UiBinder?
   C) Other?


A) The GwtQuery approach:

As a first pretty clueless attempt, I'm currently using GwtQuery code
similar to this:

@UiField
HTML div1;

void attachImages(...) {
  for (...) {
$(div1.getElement()).append(
img src='images/ + (flag ? a : b) + .gif' style='top:
+ i + em'/);
  }
}

@UiHandler(div1)
void onDivClicked(final ClickEvent event) {
 ...
}

This works, but a) it's obviously ugly, and b) I don't know, if
there's a faster/better way.


B) The UiBinder approach:

I chose the HTML class, to get a clean div, and still be able to use
@UiHandler. But it doesn't seem to be possible to attach (UiBinder)
Composites to it. What else should I choose? Unfortunately, HTMLPanel
isn't a subclass of HasClickHandlers, so it doesn't work with
@UiHandler.


C) Other approaches:

?

Thanks
Chris

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IE Sprite Error in Development mode ?

2010-05-27 Thread Ed

I think there goes something wrong using sprites in IE in development
mode.

I use Clientbundles with sprites in my CSS files. I think I have them
configured well now after a few hints found in the forum. They all
look ok at least, apart that that in IE, at some pages of my app, the
whole sprite is shown at some places in the screen, which only occurs
in Development mode.
I am running in noserver mode btw.

See for your self:
-In development mode: http://sub.ited.nl/gwt/error.png
-In web mode: http://sub.ited.nl/gwt/ok.png

Even if I remove the content of my CSS files, such that only the
ImageResource can be used from the ClientBundle.

Any idea how this happens?

A snippet of my CSS file:
public interface DeclareClientBundle extends CommonClientBundle {

@Source( {styles/gwt-declare.css, styles/gwt-default.css })
@CssResource.NotStrict
DeclareCssResource getCss();

@Source(images/help-enabled.gif)
@ImageOptions(repeatStyle = RepeatStyle.None)
ImageResource helpEnabled();

@Source(images/help-disabled.gif)
@ImageOptions(repeatStyle = RepeatStyle.None)
ImageResource helpDisabled();
 ..
..
..

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Re: Unable to get upload results from FileUpload

2010-05-27 Thread Fahim

Hi Jeff,

Thanks for your response.

Actually server is not in my control. Though I can send request for
log file but it will take some time. And I don't think that there is
any issue on server side. We use the same service call for file upload
in our silverlight client, which we are porting to GWT now, and it
work just fine there.

I guess there is something wrong with the behavior of GWT FileUpload
control. Does it accept/return the response text of type text/xml?
May be it only supports the content type of text/html. Any ideas?

Thanks,
Fahim

On May 27, 7:05 pm, Jeff Chimene jchim...@gmail.com wrote:
Hi Fahim:

Check your server error log.

On Thu, May 27, 2010 at 1:05 AM, Fahim fahimr...@gmail.com wrote:
Hi All,

xmlResponsestatuscode500/codemessageAn unknown system error
occurred while processing the request./messagesubcode500/
subcode/status/xmlResponse

Any thoughts why am I not getting the above xml in in
event.getResults()?

Thanks,
Fahim

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Re: Unable to get upload results from FileUpload

On 05/27/2010 01:17 PM, Fahim wrote:
Hi Jeff,

Thanks for your response.

Actually server is not in my control. Though I can send request for
log file but it will take some time.

You don't have any access to the server? Even via a web management
interface? How did you install the server-side code to respond to the
upload request?

And I don't think that there is any issue on server side.

I must respectfully disagree. The error message clearly indicates an
error on the server. The 500 error code is generated by the http
daemon. Until you've examined the error log, there is no basis in fact
for your statement.

An unknown system error occurred while processing the request.

We use the same service call for file upload
in our silverlight client, which we are porting to GWT now, and it
work just fine there.

I guess there is something wrong with the behavior of GWT FileUpload
control.

It's not the GWT upload control.

Does it accept/return the response text of type text/xml?

Accept: yes. That's how the upload status widget works

Return: Yes N.B. I cannot speak for the Java side of things, as I only
use the jsupload.cgi script.

May be it only supports the content type of text/html.

No.

Any ideas?

Yes. Check your server error logs. Additionally, are you using the
jsupload.cgi script or the Java server-side code?

Thanks,
Fahim

You're welcome,
Jeff

On May 27, 7:05 pm, Jeff Chimene jchim...@gmail.com wrote:
Hi Fahim:

Check your server error log.

On Thu, May 27, 2010 at 1:05 AM, Fahim fahimr...@gmail.com wrote:
Hi All,

xmlResponsestatuscode500/codemessageAn unknown system error
occurred while processing the request./messagesubcode500/
subcode/status/xmlResponse

Any thoughts why am I not getting the above xml in in
event.getResults()?

Thanks,
Fahim

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Re: Unable to get upload results from FileUpload

On 05/27/2010 01:17 PM, Fahim wrote:
Hi Jeff,

Thanks for your response.

Thanks,
Fahim

On May 27, 7:05 pm, Jeff Chimene jchim...@gmail.com wrote:
Hi Fahim:

Check your server error log.

On Thu, May 27, 2010 at 1:05 AM, Fahim fahimr...@gmail.com wrote:
Hi All,

xmlResponsestatuscode500/codemessageAn unknown system error
occurred while processing the request./messagesubcode500/
subcode/status/xmlResponse

Any thoughts why am I not getting the above xml in in
event.getResults()?

Thanks,
Fahim

Hi Fahim:

I have to admit that the above puzzles me. Why are you looking in
event.getResults()? The server response will be found in
response.getText(). See
http://google-web-toolkit.googlecode.com/svn/javadoc/2.0/com/google/gwt/http/client/Response.html#getText()

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Re: Guice with client-side GWT

2010-05-27 Thread david.herv...@gmail.com

As Kevin mentionned, Gin is the dependency injection framework for
GWT.
There are some subtleties compared to Guice as the java code is
transformed in JS (for example you can not request an injector for an
instance of a class). But it is quite the same idea (Gin is partially
based on Guice) and the addressed topic is the same : dependencies
injection.
Cheers

On 27 mai, 06:21, Kevin Qiu kevin.jing@gmail.com wrote:
 Is thishttp://code.google.com/p/google-gin/what you're looking for?



 On Wed, May 26, 2010 at 9:11 PM, Blessed Geek blessedg...@gmail.com wrote:
  Nope, I am not asking about Guice with RemoteServiceServlet for RPC.

  Is it possible to use Guice on GWT widgets and related client-side
  manoeuvres?

  I don't expect the answer to be yes because the native code for GWT
  client is javascript not JVM byte-code.

  So, any plans for Guice on client-side GWT? One that works with
  annotation on Java code but performs injection on javascript
  generation hand-in-hand with GWT compiler?

  Are there already any dependency injection frameworks somewhere out
  there for GWT clients?

  It would be a feature specifically useful when working with ext-gwt
  Controller and View.

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Re: FlexTable

2010-05-27 Thread mark babcock

Did you look at the DynaTable in the samples folder?   It has an example of
using a flex table with dynamic data.

On Wed, May 26, 2010 at 12:59 AM, ravjot ravjot@gmail.com wrote:

 i want to add a table to my application, wherein i can add rows and
 columns at the runtime nd further append the no of rows dynamically
 with every successive entry in the map ... where the data being
 entered onto the map is retrieved from the kml file using the xml
 parsing method.

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Re: Fastest way to create lots of similar elements

2010-05-27 Thread George Georgovassilis

Hello Chris,

I think, especially with respect to IE, the fastest way is still to
construct a string and assign it to div's innerHTML... provided that
you can find an intelligent and fast way to create that string, as IE
(at least prior to 8) has a notoriously slow string concatenation.

On May 27, 9:33 pm, Chris Lercher cl_for_mail...@gmx.net wrote:
 Hi,

 I need to create lots (hundreds) of image tags, and attach them
 dynamically to several plain div class=xy/div elements:

 div class=xy
   img src=images/a.gif style=top: 1em;/
   img src=images/a.gif style=top: 2em;/
   img src=images/b.gif style=top: 3em;/
   ...
 /div
 ...

 The img tags can have only two different src urls. But each needs
 individual style attributes (for absolute positioning).

 Question:
 What would be the fastest (and preferably clean) way to do that?

    A) GwtQuery (aka GQuery)?
    B) UiBinder?
    C) Other?

 
 A) The GwtQuery approach:

 As a first pretty clueless attempt, I'm currently using GwtQuery code
 similar to this:

 @UiField
 HTML div1;

 void attachImages(...) {
   for (...) {
     $(div1.getElement()).append(
         img src='images/ + (flag ? a : b) + .gif' style='top:
 + i + em'/);
   }

 }

 @UiHandler(div1)
 void onDivClicked(final ClickEvent event) {
  ...

 }

 This works, but a) it's obviously ugly, and b) I don't know, if
 there's a faster/better way.

 
 B) The UiBinder approach:

 I chose the HTML class, to get a clean div, and still be able to use
 @UiHandler. But it doesn't seem to be possible to attach (UiBinder)
 Composites to it. What else should I choose? Unfortunately, HTMLPanel
 isn't a subclass of HasClickHandlers, so it doesn't work with
 @UiHandler.

 
 C) Other approaches:

 ?

 Thanks
 Chris

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Re: Is there a way to wait a RequestBuilder action finished and then do next RequstBuilder action?

When the first request ends, the onSuccess method of the
RequestCallback is called. Send the second request from here. Example:

public void phase1() {
  // first request
  RequestBuilder b = ...;
  ...
  b.setCallback(new RequestCallback() {
public void onSuccess(...) {
  phase2();
}
  });
  ...
}

public void phase2()
{
  // second request
  ...
}

On 27 mai, 09:31, recoco recoco.zh...@gmail.com wrote:
 I'm using writing a login process from a remote server with GWT. The
 process is that client get a token first and then use this token and
 username to login in the server. So I wrote two methods. One is
 getToken , another is postLogin. Both use RequestBuider to communate
 to the remote server and should be executed orderly. But I found that
 POST action which is postLogin always execute before getLogin. The
 postLogin method will fail because the token is still not returned
 from the server.
 So, how to wait the first action finished and the perform the second
 one? Thanks in advance.

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Re: GWT 2.1m1/DateTimeFormat - format for full time has changed

Okay, make sense.

Thanks.

On 27 mai, 18:11, Thomas Broyer t.bro...@gmail.com wrote:
 On 27 mai, 16:02, Olivier Monaco olivier.mon...@free.fr wrote:

  Hi,

  Some of my unit test failed after switching to GWT 2.1m1. This is due
  to the following 
  change:http://code.google.com/p/google-web-toolkit/source/diff?spec=svn8214;...

  The full format for time has changed from h:mm:ss a v to h:mm:ss
  a . The first give me 1:00:00 AM Etc/GMT-1 but the second
  1:00:00 AM UTC+1, so the same as the long format.

  Is it a regression? or was there a bug before?

 I suspect locale data has been updated to the latest Unicode CLDR
 data.http://cldr.unicode.org/

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Re: GWT Hibernate Project Structure

2010-05-27 Thread Maurice Nee

Thanks Yau,

That would be great. Any info you could give me on how you setup your
project would be great. Are you using Eclipse? Also, is it the correct
procedure to place your Hibernate jars and dependencies in the war/WEB-
INF/lib directory and then add them to the build path?

Thanks for your help!

On May 26, 9:34 pm, Yau kvle...@gmail.com wrote:
 I haven't tried Maven but I'm using GWT + Hibernate3 + Gilead.  It's
 very difficult to setup Gilead as the example provided by GWT is very
 very outdated and no longer compatible.  It took me 2 days to figure
 out how to set it up with the correct jar, import path and syntax.  If
 you're still interested in Gilead, I can provide some info.

 On May 25, 9:38 pm, Maurice Nee lyden...@gmail.com wrote:



  Thanks Gabriel,

  I've read differing opinions on whether client and server code should
  be split into two projects. At this point,
  I really don't care which about which approach I use as long as I get
  something up and running that is error
  free. Could someone explain to me a specific procedure for setting up
  a GWT + Maven2 + Hibernate3
 projectin Eclipse? For instance, if I were to use only oneproject,
  do I create a new GWTprojectwith the
  GWT Eclipse plugin and then modify its directorystructureto conform
  to Maven's standard directory layout?
  Or, do I create a Mavenprojectwith the m2eclipse plugin and then
  enable GWT in thatproject? Frankly, I'm
  not sure where the best place to start is. This is my firstproject
  using multiple technologies together, and
  although I feel like I understand a good deal of how these
  technologies work individually, I don't understand
  how to make them work together. Any help would be most appreciated.

  On May 22, 10:07 am, Gabriel guz...@gmail.com wrote:

   Hi,

   Do you have a reason for splitting the application into two projects?
   If not, there is nothing preventing you from using a singleproject
   for both client and server. If you do need to have two projects, you
   can use two (server and client) or three (server, client and common)
   modules under one mavenprojectand define the dependencies among them
   (if you hadn't used Maven, you could have used the IDE to define the
   dependencies between projects). I suggest you read the documentation
   here:http://code.google.com/eclipse/docs/users_guide.html

   On May 21, 6:20 am, Maurice Nee lyden...@gmail.com wrote:

Hi,

This is my first ever forum post. I really need some help with
understanding how to setup aGWT2.0 Hibernate3project. I understand
theGWTRPC mechanism and the problems with serializingHibernate
POJOs. I would prefer to use DTO's rather than Gilead or Dozer. So
far, I have aHibernateProject built with Maven2 in Eclipse using the
m2eclipse plugin and the HibernateTools plugin for Eclipse. I also
have aGWT2.0projectbuilt with theGWTplugin for Eclipse. I'm
using MySql as the RDBMS. What I don't understand is how to setup,
configure, and deploy the two projects in such a way that they can
communicate with each other.

Let's say with the above setup, I'm trying to persist a Person object
that has only an id, and a name as fields. In myHibernateproject, I
would create a Person.hbm.xmlHibernatemapping document, and then
generate the correspondingHibernateJava POJO and MySql table. Then,
in myGWTproject, I would create a serializable PersonDTO.java class
that can be sent 'across the wire' to and from the server viaGWTRPC.
Then, for simplicity's sake, let's say that in the client package of
myGWTproject I create a CreatePersonService.java interface and a
CreatePersonServiceAsync.java interface with one method, void
createPerson(). I would then need a CreatePersonServiceImp.java class
on the server side that implements createPerson(). Fine, but here's
where I get confused.

If the createPersonServiceImp.java class is going to transform a
PersonDTO.java class into itsHibernatePOJO equivalent, then it needs
to utilize classes from both myGWTEclipseprojectandHibernate
Eclipseproject. So whichprojectdo I put it in? It needs to have
access toGWTclasses like PersonDTO, AsyncCallback and other RPC
classes. It also needs access toHibernateclasses like
SessionFactory, Transaction, etc. So it needs to have access to myGWT
jars andHibernatejars which are in two separate projects. How do do
I link them so that CreatePersonServiceImp.java has access to all the
libraries it needs. Finally, how do I correctly merge both of these
projects into one WAR file for deploying onto a server? Or am I way
off track?

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Re: Using HTMLPanel with UiBinder

2010-05-27 Thread Tom Davies

Thanks for the reply Thomas.

Perhaps what I'm doing is premature optimisation.

I'm trying to make my widget simpler, by not using a composite. What I
have looks like this:

Foo.java:

class Foo extends ComplexPanel {
  ...ui binder boilerplate...
  @UiField
  Element childLocation;
  public Foo() {
  setElement(ui.createAndBindUi(this));
  }

  @Override
  public void add(Widget child) {
   // record the child widget for attachment during onLoad()
   this.child = child;
  }
  @Override
  protected void onLoad() {
addAndReplaceElement(child,
childLocation.com.google.gwt.user.client.Elementcast());
  }
  private void addAndReplaceElement(Widget widget,
com.google.gwt.user.client.Element toReplace) {
  ... copied from HTMLPanel ...
  }
}

Foo.ui.xml:

ui:UiBinder
xmlns:ui='urn:ui:com.google.gwt.uibinder'
xmlns:g='urn:import:com.google.gwt.user.client.ui'


div
...plain html...
span ui:field=childLocation/
...more html...
/div

/ui:UiBinder

So my template is simpler than a Composite would be.

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Re: Fastest way to create lots of similar elements

Hi George,

absolutely - the other browsers are fine with simple DOM manipulation.

Inspired by the (a little bit outdated) benchmark [1], I changed my
code to join arrays instead of strings:

--
void attachImages(...) {
  final JsArrayString array = JavaScriptObject.createArray().cast();
  for (...) {
 boolean flag = ...;
 array.push(flag ? img src='images/a.gif' style='left: : img
src='images/b.gif' style='top:);
 array.push(String.valueOf(i));
 array.push(em'/);
  }
  div1.setHTML(array.join());
}

--

This also only calls setHTML() once at the end of the loop.

Does anybody see possibilities for optimization - either improving
performance or resulting in cleaner code?

[1]: http://www.quirksmode.org/dom/innerhtml.html


On May 28, 12:31 am, George Georgovassilis
g.georgovassi...@gmail.com wrote:
 Hello Chris,

 I think, especially with respect to IE, the fastest way is still to
 construct a string and assign it to div's innerHTML... provided that
 you can find an intelligent and fast way to create that string, as IE
 (at least prior to 8) has a notoriously slow string concatenation.

 On May 27, 9:33 pm, Chris Lercher cl_for_mail...@gmx.net wrote:

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how to use one panel for the whole browser window?

2010-05-27 Thread Magnus

Hello,

I would like to build my GUI within one panel that fills the whole
browser window.

What do I have to do in the host page and/or in the panel to stretch
it to this dimensions?

Thank you!
Magnus

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Re: how to use one panel for the whole browser window?