date:20110704

Re: Blocking client side execution until server executes the service completely

2011-07-04 Thread ankit

Hey...Thanks 4 all ur repliesmy problem is solved now

On Jun 17, 3:23 pm, Jens jens.nehlme...@gmail.com wrote:
 See Pauls answer. In addition if you do not want to hide the combo box, just
 set a message to it and disable it. Then load you combo box data and when
 its done clear the combo box, fill in the data and re-enable it.

 -- J.

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Re: Issue in method anonymous class in GWT

2011-07-04 Thread ankit

Thank u all 4 ur replies..my problem is soloved now.

On Jun 7, 5:16 pm, Jens jens.nehlme...@gmail.com wrote:
 You only have a problem if you use GWT.runAsync in your method. If so,
 everything that is inside the RunAsyncCallback.onSuccess method will be
 downloaded as a separate javascript file once your app reaches this point.
 The download will happen in parallel/async in production mode. In dev mode
 you won't see a difference as it will be executed synchronous.

 Basically if you take my previous example and wrap the Label creation and
 the label.setText() call into a GWT.runAsync it can happen that onModuleLoad
 finishes and later on the additional code download finishes and the
 onSuccess method is called. Thus onSuccess gets called after onModuleLoad
 finishes. That would result in:

 onModuleLoad(): started

 onModuleLoad(): finished

 Label.setText(): hello world

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how to add resource folder to webappcreator (-maven) project

2011-07-04 Thread tanteanni

i need a resource folder (maven) in my project (created by webappcreator 
-maven). for some reason webappcreator didn't generate them. the problem is 
simply adding new folders doesn't work (in eclipse). the resource folders 
need special settings in java bild path/source. is there a way to generate 
such folders afterwards?

(gwt-maven-plugin archetype generates them but has different project layout 
- i hope in future there will be one gwt-maven project layout and one 
gwt-maven-eclipse-project layout)

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Re: Using GWT-FX to fade one image into another

2011-07-04 Thread stymie

Haha I know what opacity is :-).

I did take a hint and created two images though faded one in the other
out.

Thanks

On Jul 4, 1:38 am, Jeffrey Chimene jchim...@gmail.com wrote:
 On 7/3/2011 6:35 PM, stymie wrote: Not very helpful.

  On Jul 3, 6:02 pm, Jeffrey Chimene jchim...@gmail.com wrote:
  On 7/3/2011 5:12 PM, stymie wrote: I am using the code below to fade an 
  image in gwt.

  Fade theFade = new Fade();
  theFade.addEffectElement(image_1.getElement());
  theFade.play()
  I was wondering what the best way to fade one image into another would
  be?
  opacity

 It's an opaque answer!

 Increase the opacity on the image to fade out and decrease the opacity
 on the image to fade in. If you still don't understand, see your CSS
 reference.

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Re: RootPanel.clear() method slows down after multiple use

2011-07-04 Thread Thomas Broyer

You're adding a ClickHandler each time you switchView, that might very well 
be your issue.

You should separate building views and showing/hiding them.

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Re: Pluggable modules

2011-07-04 Thread manstis

Hi Berto,

I've stuck everything on github; git://github.com/manstis/gwt-plugins.git

plugin - the plugin
pluginserver - the framework
plugincommon contains my common model

There's only about 10 files in all; so it's not so ominous.

I thought this would be easier than trying to explain directly - I'm
not expecting you to fix anything, it's just so you can see what I
have and give some suggestions.

As it stands, I can pass the common model class to the framework,
but all attributes are undefined:
http://stackoverflow.com/questions/6535303/gwt-gwt-exporter-passing-objects

If you decided to try and run it; plugin and pluginserver WARs can be
deployed to Tomcat (I use 6.0) and select the URL for the server
portion.

Cheers,

Mike






On Jul 3, 10:14 am, lemaiol lema...@gmail.com wrote:
 Hi Mike,

 How are the modules loaded and how are they invoked?

 Berto

 On Jun 22, 2:10 pm, manstis michael.ans...@gmail.com wrote: Great, lots to 
 play with :)

  Before I look into writing my own JSNI bridge, I've still been trying
  to use gwt-exporter, but.

  I've three GWT applications:-
  (1) Plugin (inherits Common)
  (2) Backend (inherits Common)
  (3) Common

  Plugin
  
  Contains:-

    ...
    echoButton.addClickHandler(new ClickHandler() {

      public void onClick(ClickEvent event) {
        //Debugging statements shown -- shows 'callback' is not null
        PluginCallbackString callback = getPluginCallback();
        Window.alert(Plugin.onModuleLoad.onClick.callback is  +
  (callback != null ? not  : ) + null);

        echo(text.getText(), callback);
      }

    });
    ...

    private native void echo(String text, PluginCallbackString
  callback) /*-{
      //Debugging statements shown -- shows 'callback' is not null
      alert(Plugin.echo.callback is  + (callback != null ? not  :
  ) + null);

      $wnd.com.anstis.pluginserver.CommonService.echo(text, callback);
    }-*/;

  Backend
  
  Contains:-

    public void onModuleLoad() {
      //Use gwt-exporter to generate the JSNI for CommonService.class
      GWT.create(CommonService.class);
    }

  CommonService is:-

    @Export
    public class CommonService implements Exportable {

      private static final EchoServiceAsync echoService =
  GWT.create(EchoService.class);

      public static void echo(String input, PluginCallbackString
  callback) {
        //Debugging statements shown -- shows 'callback' is null
        Window.alert(CommonService.echo.callback is  + (callback !=
  null ? not  : ) + null);
        try {

          //The guts of the method, invoke a GWT-RPC call -- RTE, as
  'callback' is null
          echoService.echo(input, callback);

        } catch (Exception e) {
          e.fillInStackTrace();
          e.printStackTrace(System.out);
          Window.alert(e.getMessage());
        }
      }

    }

  Common
  
  Simply defines PluginCallback, as follows:-

    public class PluginCallbackT implements AsyncCallbackT {
      public void onFailure(Throwable caught) {}
      public void onSuccess(T result) {}
    }

  My problem is that the PluginCallback instance is proven to be non-
  null in Plugin (both Java and JSNI methods), but is reported as null
  in Backends CommonService.

  Somewhere it is getting munged, but I only pass a Java Object from
  Plugin to JSNI (echo) to Java (CommonService) so don't understand
  why it's being nulled?!?!

  Any ideas (I'll post as a new question if you don't see anything
  wrong, so it gets seen by a new audience as opposed to those just
  following this thread).

  Thanks,

  Mike

  On Jun 21, 7:32 pm,lemaiollema...@gmail.com wrote:

   Hi Mike,

I am growing to believe I need to deploy each plug-in as a separate
WAR on a web-server. Is this true, or have I missed something?

   In the case of my architecture, it is even a requirement that every
   plugin will be deployed as an own WAR file. It allows different teams
   working in parallel in completely independent applications (plugins)
   which have a common message data model. When inside the plugins
   container, they receive messages with this common data model. When
   out of the plugins container, the show a simplified UI to let the
   developer pass a message generated by hand and therefore test the
   application.

I am also using gwt-exporter to make the JSNI messaging mechanism;
i.e. I just write an Exportable class and use the resulting JS API
from my plugins. I am hoping to use gwt-api-interop to remove the need
to use the JS API.

   I have seen gwt-exporter but do not know gwt-api-interop.

I assume the JS bridge between GWT applications handles the
messaging between them (i.e. plugins register callbacks to handle
messages sent from the host?)

   Yes.

If I understand correctly, adding additional script tags to my
loader page and having each plug-in as a separate WAR I avoid the
need to inherit in my gwt.xml file?

   My common model and

Re: avoiding web.xml configuration for rpc servlet

2011-07-04 Thread Thomas Broyer



On Monday, July 4, 2011 7:31:41 AM UTC+2, Elhanan wrote:

 and does jetty support that?


Jetty 8 will.
 

 btw what DOES jetty support in terms of jee?


http://wiki.eclipse.org/Jetty/Reference/Web_Profile
That's for Jetty 8 though. AFAIK, Jetty 7 is almost the same, just without 
servlet 3. Jetty 6 (bundled in GWT SDK) only supports common annotations: 
http://docs.codehaus.org/display/JETTY/Annotations

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cannot deserialize arraylist - but why?

2011-07-04 Thread Dennis Haupt

this is the error message i get:
Caused by: com.google.gwt.user.client.rpc.SerializationException:
java.util.ArrayList/4159755760
at
com.google.gwt.user.client.rpc.impl.SerializerBase.getTypeHandler(SerializerBase.java:153)
at
com.google.gwt.user.client.rpc.impl.SerializerBase.instantiate(SerializerBase.java:114)
at
com.google.gwt.user.client.rpc.impl.ClientSerializationStreamReader.deserialize(ClientSerializationStreamReader.java:111)
at
com.google.gwt.user.client.rpc.impl.AbstractSerializationStreamReader.readObject(AbstractSerializationStreamReader.java:119)
at
com.webfair.gwt.components.genericforms.shared.ButtonRow_FieldSerializer.deserialize(ButtonRow_FieldSerializer.java:18)
at
com.webfair.gwt.components.genericforms.shared.ButtonRow_FieldSerializer.deserial(ButtonRow_FieldSerializer.java:36)
at
com.google.gwt.user.client.rpc.impl.SerializerBase.deserialize(SerializerBase.java:95)

how to find out what exactly is causing the error? the arraylist itself
obviously cannot be the problem, i've sent a lot of them back and forth.
everything the list contains implements isserializable...

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Re: cannot deserialize arraylist - but why?

2011-07-04 Thread Prashant

Hi,

I think Class of the object your want to send via GWTRPC must have default
constructure. And, if you are putting different kind of objects in one
linked list, it will not be deserialised. I faced this issues long back and
I am not very sure about the solution ...

--
Prashant
code.google.com/p/claymus/

On Mon, Jul 4, 2011 at 2:26 PM, Dennis Haupt d.haup...@googlemail.comwrote:

this is the error message i get:
Caused by: com.google.gwt.user.client.rpc.SerializationException:
java.util.ArrayList/4159755760
at
com.google.gwt.user.client.rpc.impl.SerializerBase.getTypeHandler(SerializerBase.java:153)
at
com.google.gwt.user.client.rpc.impl.SerializerBase.instantiate(SerializerBase.java:114)
at
com.google.gwt.user.client.rpc.impl.ClientSerializationStreamReader.deserialize(ClientSerializationStreamReader.java:111)
at
com.google.gwt.user.client.rpc.impl.AbstractSerializationStreamReader.readObject(AbstractSerializationStreamReader.java:119)
at
com.webfair.gwt.components.genericforms.shared.ButtonRow_FieldSerializer.deserialize(ButtonRow_FieldSerializer.java:18)
at
com.webfair.gwt.components.genericforms.shared.ButtonRow_FieldSerializer.deserial(ButtonRow_FieldSerializer.java:36)
at
com.google.gwt.user.client.rpc.impl.SerializerBase.deserialize(SerializerBase.java:95)

how to find out what exactly is causing the error? the arraylist itself
obviously cannot be the problem, i've sent a lot of them back and forth.
everything the list contains implements isserializable...

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Re: gwt-servlet.jar size 200KB to 4MB?

2011-07-04 Thread Craig Mitchell

After realizing that JNLP tricked me (the big gwt-servlet.jar was still 
being included), it turns out that the old small gwt-servlet.jar doesn't 
work.

I tried Thomas's idea to cut down the correct version gwt-servlet.jar, 
however, I really didn't know what I could and couldn't cut, and I cut 
something that I shouldn't have, and it failed.

Finally I tried Davids idea and built from source to get the 
requestfactory-server.jar. 
 Turns out that the server needs 
com/google/gwt/user/client/rpc/RemoteService which isn't in there.  It also 
isn't in requestfactory-client.jar either.  The only place I can find it is 
in gwt-servlet.jar.

Is there not a jar file with just the RPC stuff somewhere?

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Re: CellTable and GAE Datastore cursors

2011-07-04 Thread gadev

Hi (Kalimera)

I am in the same situation, I am trying to display datastore data on a 
celltable. To avoid having to page back and store cursors I place the 
celltable in a scrollpanel and when scroll reaches the end I change the 
range and the asyncdataprovider makes a new call to get new records. 
Finally, I add new records at the end of the list being displayed.

However, If I wanted to use pagination and page back I would probably store 
the cursors in the asyncdataprovider.

G :-)

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Re: Request Builder

2011-07-04 Thread Robert W

After some research i can say that there is general problem with
advanced communication outside servlet/app engine. Problem is easy
serialization. I created own based solution on JavascriptObject and
amfphp. Serializaing transparently but I write java DTO by hand.
JavascriptObject is problematic in this regard that cant have useful
constructor and no more than one class can implement interface and
there is no reflections java methods in gwt client side that
summarized now I write javascript code to send as hint for server
deserializiation. it should be created by gwt Generator but generator
must form complete classes (more work for me now).
On Jul 3, 5:05 am, sanjay kanwar sanj.kan...@gmail.com wrote:
 Hi There,

 I have a task in which i hav to use Request Builder and JSON to fetch the
 data frm the php server and show it in the screen in the form of image
 representating tht data. I am new to jst a recent graduate and new to this
 technology any help about how to proceed  would be very helpful.

 Thanks in Advance
 Sanjay Kanwar

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Re: Request Builder

2011-07-04 Thread Elhanan Maayan

actually we've decided to abandon RequestFactory framework for the reason
that it cannot be ported elsewhere.
that is if we decided to have other clients such as silverlight/flex, those
won't have request factory capabilities . so it kinda binds us to gwt.

On Mon, Jul 4, 2011 at 12:56 PM, Robert W riasol@gmail.com wrote:

 After some research i can say that there is general problem with
 advanced communication outside servlet/app engine. Problem is easy
 serialization. I created own based solution on JavascriptObject and
 amfphp. Serializaing transparently but I write java DTO by hand.
 JavascriptObject is problematic in this regard that cant have useful
 constructor and no more than one class can implement interface and
 there is no reflections java methods in gwt client side that
 summarized now I write javascript code to send as hint for server
 deserializiation. it should be created by gwt Generator but generator
 must form complete classes (more work for me now).
 On Jul 3, 5:05 am, sanjay kanwar sanj.kan...@gmail.com wrote:
  Hi There,
 
  I have a task in which i hav to use Request Builder and JSON to fetch the
  data frm the php server and show it in the screen in the form of image
  representating tht data. I am new to jst a recent graduate and new to
 this
  technology any help about how to proceed  would be very helpful.
 
  Thanks in Advance
  Sanjay Kanwar

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Enlarge the image of a PushButton

2011-07-04 Thread aliwa

Hello,

To put an image on a PushButton I use the method :
myPushButton.getUpFace().setImage(myImage);. The image does not take
all the space, there are many gray space below and above the image. I
wanted the image takes all the space of the button. Could you help me?

Thank you in advance.

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Canceling a ClickEvent

2011-07-04 Thread Eugen Paraschiv

I have a button with 2 ClickHandlers. After the first handler executes, I 
would like to cancel the event, so that it doesn't reach the second handler 
(based on some internal logic). Is there any way to cancel an event at this 
point? 
I have tried: event.stopPropagation(); but it has no effect. 
Any help is appreciated. 
Thanks. 
Eugen. 

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GPE makes GWT projects build extremely long

2011-07-04 Thread Marko Vuksanovic

When building GWT project it takes like approximately 1.30h to build. If I 
turn off GWT and Google AppEngine nature for the project it takes only a few 
seconds to build.

I'm using Eclipse Indigo + m2e 1.0 + GPE 2.3.2. I have also tried using 
Eclipse Helios + m2e 1.0 + GPE 2.3.2

A screenshot of memory heap usage can be found here:
https://picasaweb.google.com/lh/photo/9TO8cY-XEpLvtAWAUu1J6OLZadJo0K1gwox6XuxJ2b0?feat=directlink

I tried deleting workspace, creating new one, deleting projects and 
importing again, reinstalling eclipse but I always end up with extremely 
long build cycle

Has anyone else had similar issues?

Marko

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Re: GWT Development Enviorment

2011-07-04 Thread Yannis Bres

See 
http://code.google.com/webtoolkit/doc/latest/DevGuideCompilingAndDebugging.html.

Best regards,
  Yannis

On Mon, Jun 20, 2011 at 6:31 AM, Juhi jbha...@entrib.com wrote:
 Hi,

 I am developing a gwt/smartgwt - maven app. In case I make changes to
 my code , I have to recompile my entire app and this takes a lot of
 time. Searching on the internet, I got GWT Development mode plugin.
 But there is no clear idea as how to use it.

 Can anyone please help me with it?

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Re: JQuery like animation

2011-07-04 Thread Christian Goudreau

Have you ever heard of Gwt-Query ? :D

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

Cheers,

On Sun, Jul 3, 2011 at 11:58 AM, Guy Nirpaz g...@totango.com wrote:

 Hey,

 Any idea how to get functionality similar to JQuery:
 $(p.neat).addClass(ohmy).*show(slow);*
 *
 *
 *
 *
 I'm referring to the { .show(slow) } part.

 I'm looking to find an extensive set of animation capabilities which can be
 used with GWT (not ext-GWT or other non native GWT libraries)

 Any tips will help
 Guy

 *
 *

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-- 
Christian Goudreau
www.arcbees.com

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Re: cannot deserialize arraylist - but why?

2011-07-04 Thread Dennis Haupt

neither the missing default constructor nor different element types are the
problem. i suddenly can't deserialize any arraylist, no matter what's
inside. is there a way to debug it to see what's wrong?

2011/7/4 Prashant antsh...@gmail.com

Hi,

--
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On Mon, Jul 4, 2011 at 2:26 PM, Dennis Haupt d.haup...@googlemail.comwrote:

Re: problems using ScrollPanel and layout panels

2011-07-04 Thread Ioan Agopian

Williame, thanks for your response, I really hope we can find an
elegant solution.

I don't think that your approach works well for dynamic content. I
don't really know the size of the cell tree in advance so I can't
adjust the size of the containing panel when placing the cell tree in
it.

At first, I used like you a HtmlPanel as my main container, and I had
outside scrolling working fine, but I had to switch from it when I
started to use a SplitLayoutPanel for one of my views, because the
split panel worked only when specifying the exact height for it, I
couldn't get it to work with a height of 100%.

So I switched to using RootLayoutPanel and converted all my outer
panels to layout panels and the SplitLayoutPanel started to work
correctly (not surprisingly, as the documentation for layout panels
clearly says that you have to attach them only to other layout
panels). Having solved that I bumped into this inner scrolling
problem.

From the layout panels documentation:

ScrollPanel... works well in layout panels (see below), which provide
it with the explicit size it needs to scroll properly.

And below we have this example:

g:DockLayoutPanel unit='EM'
  g:north size='4'
g:LabelHeader/g:Label
  /g:north

  g:west size='16'
g:LabelNavigation/g:Label
  /g:west

  g:center
g:ScrollPanel
  g:LabelContent Area/g:Label
/g:ScrollPanel
  /g:center
/g:DockLayoutPanel

Which is like my code, except they use static content for the scroll
panel.

I suppose an elegant solution must exist, because almost all web apps
will use dynamic content.


On Jul 3, 4:22 am, Williame william.eub...@uah.edu wrote:
 I feel your pain.  I've spent hours trying to make my center docklayoutpanel
 scrollable while at the same time make it replacable by new widgets based on
 menu choices.  Most things worked fine by putting a Scrollpanel in the
 center block, except TabLayoutPanel put a few level inside it would never
 show the tab headers.  I found that ResizeLayoutPanel can help.  Hope it
 never gets deprecated.

 You can use Window.getClientWidth() and Window.getclientHeight() to get the
 visible window size in pixel, then subtract the size of the other screen
 elements.  But this did not resize well for me and I did not want to write a
 lot of code to handle and propagate onResize.

 In the end I went with an html panel for my main outer interface, so I could
 use simple div elements for the top(north) elements, and used a
 ResizeLayoutPanel for the placeholder for content.  In the java side of the
 uibinder code I put in a call to a ResizeLayoutPanel size adjustment after
 clearing and placing new panels into the ResizeLayoutPanel widget.

 g:HTMLPanel styleName={style.mainPanel}
 div class={style.header}My Company name/div

 div ...
 !-- content widget placeholder --
 g:ResizeLayoutPanel ui:field=uberContent title=Content
 styleName={style.appcontent} height=384px width=681px/

 /g:HTMLPanel

 In the code to replace the content widget with a different widget, the panel
 size of the new widget can be used to resize the placeholder widget if the
 new panel is a fixed size layout panel.  If it is not, you need to
 explicitly specify the size of the new panel:

 uberContent.clear()
 MyPanel panel = new MyPanel();
 uberContent.add(panel);
 adjustContent(panel.getOffsetHeight(),panel.getOffsetWidth());

 In adjustContent(int height, int width) method, reset placeholder widget
 size to just a little bigger than the new panel added to it:

 uberContent.setHeight(height + 50 + px);
 uberContent.setWidth(width + 20 + px);

 The css for the placeholder widget, uberContent, sets margin-bottom to keep
 the panel below the header div's.  The scrolling seems to work like a normal
 web app, resizes work pretty well too.  Tested with latest of each: IE,
 firefox, chrome, safari and opera.  Even iPad(safari).  The overflow css
 attribute seems to wreak havok on layout panels, especially tablayoutpanel.  
 I have it set to overflow: scroll; for the style.mainpanel, outer
 htmlpanel.  But not set at all for the ResizeLayoutPanel style.  
 DockLayoutpanel sets overflow: hidden by design.

 I wouldn't be surprised if there are several better, more elegant solutions,
 which I would love to know of, but this worked for me.  Hope it helps.
 Discalimer I am neither java, css or gwt expert.  But do love gwt.  Thank
 you Google!! /Disclaimer
 -William

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Re: cannot deserialize arraylist - but why?

2011-07-04 Thread Prashant

Did you add anything to your class which is not serializable ? ... don't
know much about debugging GWT .. :(

On Mon, Jul 4, 2011 at 6:13 PM, Dennis Haupt d.haup...@googlemail.comwrote:

2011/7/4 Prashant antsh...@gmail.com

Hi,

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On Mon, Jul 4, 2011 at 2:26 PM, Dennis Haupt d.haup...@googlemail.comwrote:

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Re: Disposable activities

2011-07-04 Thread koma

Thx for the comments.

I guess pragmatism is the rule that you never break :-)

For now, I turned one of  the Activties/presenters into a singleton, so no 
longer disposable. 
This presenter works with the main view of the app and would be (almost) 
always present anyway.
Since it is never disponsed, of, this presenter never misses any of the 
events it is subscribed for.
It takes me one extra call to init this activity. The activity mgr returns 
MainActvity.getInstance() when necessary.

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Re: cannot deserialize arraylist - but why?

2011-07-04 Thread Juan Pablo Gardella

Paste the complete stack trace

2011/7/4 Dennis Haupt d.haup...@googlemail.com

2011/7/4 Prashant antsh...@gmail.com

Hi,

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Re: JQuery like animation

2011-07-04 Thread Uemit

If you don't care much about old browsers you can also use CSS3 
transitions/animations for simple stuff. 
I used it in a GWT project (i.e. ProgressBar) and it works really well. 
i.e.: http://aatiis.me/demos/pure-css-progress-bar



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Re: Canceling a ClickEvent

2011-07-04 Thread Jeffrey Chimene

On 7/4/2011 3:45 AM, Eugen Paraschiv wrote:
 I have a button with 2 ClickHandlers. After the first handler
 executes, I would like to cancel the event, so that it doesn't reach
 the second handler (based on some internal logic). Is there any way to
 cancel an event at this point?
 I have tried: event.stopPropagation(); but it has no effect.
 Any help is appreciated.
 Thanks.
 Eugen.
Were it me, it's structure this so that a single click handler fires
either one or two events.  Move the decision logic into the single click
handler, and cause it to fire either one or two events. Distribute the
logic of the two current click handlers among two new event handlers.
There may be determinism issues, so synchronization logic may be required.

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Re: Canceling a ClickEvent

2011-07-04 Thread Eugen Paraschiv

I don't have any control over the firing of the events. It's a Button and
when clicked it's going to fire events to the handlers registered with it,
if the event is not stopped. If it were my own logic, I could indeed control
the firing logic and I could perhaps do what you suggest, but seeing how
this is GWT code (and the default behavior for any entity firing events), I
don't have that option.
Thanks for the feedback.
Eugen.

On Mon, Jul 4, 2011 at 5:28 PM, Jeffrey Chimene jchim...@gmail.com wrote:

 On 7/4/2011 3:45 AM, Eugen Paraschiv wrote:
  I have a button with 2 ClickHandlers. After the first handler
  executes, I would like to cancel the event, so that it doesn't reach
  the second handler (based on some internal logic). Is there any way to
  cancel an event at this point?
  I have tried: event.stopPropagation(); but it has no effect.
  Any help is appreciated.
  Thanks.
  Eugen.
 Were it me, it's structure this so that a single click handler fires
 either one or two events.  Move the decision logic into the single click
 handler, and cause it to fire either one or two events. Distribute the
 logic of the two current click handlers among two new event handlers.
 There may be determinism issues, so synchronization logic may be required.

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Parvez Chauhan wants to chat

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class path issues with mixing projects..

2011-07-04 Thread Elhanan Maayan

hi..


assume that i have a Dynamic Web Project configured with google sdk, which
references another project for domain classes, which itself references a 3rd
project for persistence utility classes.

i'm trying to use tomcat as debug servlet , but the only way i'm able to
reslove ClassNotFoundExceptions, is to actually add to the server the
referenced projects ,which is a shame is the classpath info is allready
there in the project, i've tried using the export option of the build path
but it's still won't work.

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Re: Disable/Enable CSS obfuscating in gwt.xml ?

2011-07-04 Thread Chris Lercher

@karthik: The problem is, that in general you can't simply retain the 
original names. A very important (probably the most important) feature of 
CssResources is, that each of them effectively gets its own namespace. If 
you remove that concept (even just for testing), you will create conflicts, 
if the same style class name is used in different CssResources.

If you don't care about that feature, then it's probably best, if you 
actually use @external on all your style classes, or if you put everything 
in external CSS files.

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LineChart -need to change chart's width on resizing the splitter in SplitLayoutPanel

2011-07-04 Thread kalpana anbalagan

Hello,

I am using GWT 2.2 SplitLayoutPanel. I am using GWT Visualization
LineChart(CoreChart) in one of the region. The requirement is that
when we re-size the splitter, the current width of that region(which
holds the chart) should be applied to the chart. I tried applying the
dynamic width of the region to the chart but only the chart area's
width got affected but not the x-axis. We need to apply the dynamic
width to the options that we pass to the chart. In that case we may
need to redraw the chart whenever we do resizing. Can anyone provide
is there any other option we can set dynamic width to the charts. And
also to change the x-axis date formats to our desired date formats.

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Re: Canceling a ClickEvent

2011-07-04 Thread Thomas Broyer

You should add a single ClickHandler that has its own logic, and the 
ClickHandler you'd like to be called conditionally would be known by this 
specific ClickHandler, which would choose whether to call or not.
Events in GWT (as in the DOM for instance) are dispatched to all 
handlers/listeners; even throwing an exception wouldn't stop the dispatch. 
If you need another behavior, you have to implement it yourself.

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how to handle resources on server side (maven gwt)

2011-07-04 Thread tanteanni

i need some files on sever side but the normal: put it in 
resources-Folder(i created one because webappcreator didn't) and use 
MyClass.class.getResourceAsStream(/ 
+ filename); does not work?! i allways get null. usind FileInputStream and 
absolute path works. gwt-maven-plugin copies the file to target but it seems 
that it is not part of classpath?!
what is the normal way to use resources on server side in a gwt/maven 
project?

thx in advance

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Re: Latest GWT 2.4 Beta zip Download with HTML5 DnD Support fixed

2011-07-04 Thread PShenoy

Thanks

On Jun 30, 7:34 pm, Jeff Larsen larse...@gmail.com wrote:
 You can always build from trunk.

 http://code.google.com/webtoolkit/makinggwtbetter.html

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Help : Memory Leak Problem

2011-07-04 Thread Alberto Rugnone

Hello everybody,
In my office we are experiencing a very bad problem of memory leak. We
are developing an application with GWT based on MVP architecture.
Each widget is a MVP and each MVP is based on a own class named
DefaultWidgetPresenter.  The applicaion has to create periodically new
Presenters (subclass of the first) and deletes periodically olders.
Anyway application memory grows up. Profiling the application with
developer tools provided by Chrome or Safari we registered that
Presenter keeps their number increasing slowly and
DefaultWidgetPresenter still growing up rapidly, and we don't
understand why? We checked if we deleted correctly the presenter and
sincerely I can't say yes because our probably no deep understanding
of GWT technology.
This is the application procedure in a nutshell
1) Application create a Presenter dynamically
2) Then it put its displays in a panel
3) Then after a certain time it creates a new Presenter
4) It clears the panel then add the new display.
... and so on

I expected old presenters are garbage collected in some way. In
addition I don't understand why we have difference between number of
Presenters instances  and parents classes instance. I took
measurements also from chrome's task manager but I can't understand
the relation between profiling and that. In fact when I use profiling
the memory grows in  a strange way probably because profiling
instrument the memory in some way.

There is some one that can help us and explain those behaviours? I am
wondering also if a key to understand the problem could be understand
how GWT implements inheritage and garbage collecting? ?

Thank you in advance for any help, this problem is very important.

Regards
Alberto

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Re: Help : Memory Leak Problem

2011-07-04 Thread Rob Coops

On Mon, Jul 4, 2011 at 6:00 PM, Alberto Rugnone
arugnonechemi...@gmail.comwrote:

 Hello everybody,
 In my office we are experiencing a very bad problem of memory leak. We
 are developing an application with GWT based on MVP architecture.
 Each widget is a MVP and each MVP is based on a own class named
 DefaultWidgetPresenter.  The applicaion has to create periodically new
 Presenters (subclass of the first) and deletes periodically olders.
 Anyway application memory grows up. Profiling the application with
 developer tools provided by Chrome or Safari we registered that
 Presenter keeps their number increasing slowly and
 DefaultWidgetPresenter still growing up rapidly, and we don't
 understand why? We checked if we deleted correctly the presenter and
 sincerely I can't say yes because our probably no deep understanding
 of GWT technology.
 This is the application procedure in a nutshell
 1) Application create a Presenter dynamically
 2) Then it put its displays in a panel
 3) Then after a certain time it creates a new Presenter
 4) It clears the panel then add the new display.
 ... and so on

 I expected old presenters are garbage collected in some way. In
 addition I don't understand why we have difference between number of
 Presenters instances  and parents classes instance. I took
 measurements also from chrome's task manager but I can't understand
 the relation between profiling and that. In fact when I use profiling
 the memory grows in  a strange way probably because profiling
 instrument the memory in some way.

 There is some one that can help us and explain those behaviours? I am
 wondering also if a key to understand the problem could be understand
 how GWT implements inheritage and garbage collecting? ?

 Thank you in advance for any help, this problem is very important.

 Regards
 Alberto

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 Hi Alberto,

Being an absolute novice in Java development but having spend many years
supporting Java based applications and working with many other programming
languages I would say there is a relatively simple reason for this behavior.

Usually the garbage collector will kill what ever is considered old enough
(there are various stages in the objects life cycle but who cares right
unused objects will die in the end). What you are doing to kill of the
object in your code is not working as you expect it to. As long as there is
a single reference to the object the garbage collector will see this as a
object that's in use and thus will not remove it.

So what I understand form your post you are simply deleting the presenter
from the panel. This works well for static things like a button or an image
but as soon as you are talking a widget that is displaying data the data
that you are displaying will still be updated in that widget as all you did
is remove the widget from the display part of your program the code that is
updating the widget will happily continue to work. I would say you will need
to build a destroy method for your presenter that will remove all links to
the data to be displayed. If you call this after you delete the presenter
you should see the garbage collector clean it up nicely.

Now as I said before I am a complete novice in Java/GWT so I cannot make any
promises about the sanity of my comments but from what I know from other
languages and from supporting Java based systems for many years; the usual
reason a garbage collector misses an object is because the developer forgot
to remove all references to that object. ;-)

Regards,

Rob

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Hacked Simple Sanitizer, added tags and style

2011-07-04 Thread Brandon Donnelson

I hacked the simple sanitizer to be more useful for me. I think it needs 
more tags including the style tag, that is minus the possibility of 
javascript in the style tag which I clean at the end. I also fixed the 
sanitizer so it could have attributes in the tag.
 
Check out the code here:
http://code.google.com/p/gwt-examples/wiki/SafeHtml?ts=1309798060updated=SafeHtml#Sanitizing_HTML

Did I miss a tag?

Brandon Donnelson
http://gwt-examples.googlecode.com

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Re: how to handle resources on server side (maven gwt)

2011-07-04 Thread Hilco Wijbenga

On 4 July 2011 08:35, tanteanni tantea...@hotmail.com wrote:
 i need some files on sever side but the normal: put it in
 resources-Folder(i created one because webappcreator didn't) and use
 MyClass.class.getResourceAsStream(/ + filename); does not work?! i
 allways get null. usind FileInputStream and absolute path works.
 gwt-maven-plugin copies the file to target but it seems that it is not part
 of classpath?!
 what is the normal way to use resources on server side in a gwt/maven
 project?

GWT is mostly client side so I doubt it has anything to do with this problem.

Server side everything Java should work normally. Is this code in a
web app (i.e. a WAR)? Or standalone? If a WAR then note the difference
between src/main/resources and src/main/webapp. Check what ends up in
your WAR and where.

Also, if a WAR, you should use
Thread.currentThread().getContextClassLoader().getResourceAsStream()
or this.getClass().getResourceAsStream(). The leading slash might be
implied, i.e. the filename is treated as being absolute (I read that
somewhere, I haven't checked whether it's true).

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richfaces ajax-call and embedded gwt widget

2011-07-04 Thread denis56

Hello,

This is actually a cross post from stackoverflow (http://
stackoverflow.com/questions/6574174/richfaces-ajax-call-and-embedded-
gwt-widget). Wasn't sure where I could get a quicker suggestion, hope
you don't mind :)

I am using a4j:function call from richfaces library to rerender a
segment on a website every 20 seconds. The problem is that there is a
div element in this segment, that contains gwt widgets. So that
everytime the richfaces ajax call is made and replaces the old html
code I need to tell GWT that it has to reattach the widget (is a
native call to GWT from within the rerendered area). This reattaching
results in flickering behavior, you see the richfaces content first
and in half a second GWT widgets appear.

Does anyone know if there is a more elegant solution to make it user
friendly (I cannot get rid of GWT/Richfaces mixture:)). I would like
to have my GWT widgets be reattached first before the segment is
displayed so that users dont see any blinking/resizing/flickering on
the website. Guess, that there should be a hook in richfaces to call
external code that would make changes to the new dom tree before it is
displayed in the browser.

Thank you.

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Re: השב: Re: building custom event differently to avoid boiler plate coding?

2011-07-04 Thread lemaiol

I just published an article on this topic. Maybe you want to have a
look at it: 
http://www.canoo.com/blog/2011/07/04/code-generation-in-gwt-with-deferred-binding-cdi-like-events/

Feedback is welcome!

cheers,
Berto

On Jun 22, 5:03 am, Elhanan Maayan elh.maa...@gmail.com wrote:
 first off  you probably mean the strong type definitions provided by GWT,
 not java right?

 second, that's not what i'm suggesting, i don't want to use events for
 enable disable buttons, but i  do want to use to create logical
 messages, that a work process has ended/started, or basically whatever
 causes you to leave a view and enter another one.

 i'm also not working with just Object or string, i'm doing exactly the same
 thing gwt does only with less code, i'm providing strong typed events, with
 generics, only without the need to actually create a new class for it every
 single time

 i can do this:

 private final MessageFactoryEntity ENTITY_CREATED=new
 MessageFactoryEntity()
 private final MessageFactoryEntity ENTITY_DELETED  =new
 MessageFactoryEntity();

 ...
 addHandler(ENTITY_CREATED=new MessageHandlerEntity{

 }

 fire(ENTITY_CREATED.fire(entity))

 i get a strong typed custom event just like before, only with much less
 code..







 On Tue, Jun 21, 2011 at 10:46 PM, Alex D. alex.dobjans...@gmail.com wrote:
  You shouldn't use custom events for every possible event in your app, imo
  -- or, even better, identify the best events that match as much as possible.

  What you're suggesting by this is removing the strong-type event
  definitions provided by Java.

  Of couse, you can work with a class called Event, that merely has a String
  name and Object data, but this defeats the purpose of what GWT is
  suggesting

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Handling transaction roll-back in RequestFactory service implementations

2011-07-04 Thread Ryan McFall

Some background:  I'm using Hibernate on the server side to implement
data retrieval/update operations, with RequestFactory service methods
to handle interaction between the client and server.

Suppose that an error condition is encountered during a service
implementation, and to handle that error a database transaction is
rolled back.  If I do this, then calls to the Locator's find method
fail, after my service method completes, due to the Hibernate session
being closed .  I think that the RF framework is trying to load the
objects that were sent as parameters to my service method, in order to
determine if they have changed or not.  RF encounters exceptions
starting at line 268 of SimpleRequestProcessor (in method
createReturnOperations).

I think that I can work around this by starting a new transaction in
my service method after rolling back the one that failed, but I'm
wondering if there is a better way to handle this.  Since my service
doesn't have any way to communicate with the RF framework, I think the
answer is no, but I thought I would check.

Thanks!
Ryan

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Re: השב: Re: building custom event differentlyto avoid boiler plate coding?

2011-07-04 Thread elh.maa...@gmail.com

hi. while I didn't understand much of above and ill look into it further to 
understand code generation,   I fail to see why not resorting to a factory 
approach which requires only 2 classes. defined once and no di framework

Sent from my HTC

- Reply message -
From: lemaiol lema...@gmail.com
To: Google Web Toolkit google-web-toolkit@googlegroups.com
Subject: השב: Re: building custom event differentlyto avoid boiler plate coding?
Date: Mon, Jul 4, 2011 21:08

I just published an article on this topic. Maybe you want to have a
look at it: 
http://www.canoo.com/blog/2011/07/04/code-generation-in-gwt-with-deferred-binding-cdi-like-events/

Feedback is welcome!

cheers,
Berto

On Jun 22, 5:03 am, Elhanan Maayan elh.maa...@gmail.com wrote:
 first off  you probably mean the strong type definitions provided by GWT,
 not java right?

 second, that's not what i'm suggesting, i don't want to use events for
 enable disable buttons, but i  do want to use to create logical
 messages, that a work process has ended/started, or basically whatever
 causes you to leave a view and enter another one.

 i'm also not working with just Object or string, i'm doing exactly the same
 thing gwt does only with less code, i'm providing strong typed events, with
 generics, only without the need to actually create a new class for it every
 single time

 i can do this:

 private final MessageFactoryEntity ENTITY_CREATED=new
 MessageFactoryEntity()
 private final MessageFactoryEntity ENTITY_DELETED  =new
 MessageFactoryEntity();

 ...
 addHandler(ENTITY_CREATED=new MessageHandlerEntity{

 }

 fire(ENTITY_CREATED.fire(entity))

 i get a strong typed custom event just like before, only with much less
 code..

 On Tue, Jun 21, 2011 at 10:46 PM, Alex D. alex.dobjans...@gmail.com wrote:
  You shouldn't use custom events for every possible event in your app, imo
  -- or, even better, identify the best events that match as much as possible.

  What you're suggesting by this is removing the strong-type event
  definitions provided by Java.

  Of couse, you can work with a class called Event, that merely has a String
  name and Object data, but this defeats the purpose of what GWT is
  suggesting

  --
  You received this message because you are subscribed to the Google Groups
  Google Web Toolkit group.
  To view this discussion on the web visit
 https://groups.google.com/d/msg/google-web-toolkit/-/Y_ZKLyl29DkJ.

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Re: cannot deserialize arraylist - but why?

2011-07-04 Thread Dennis Haupt

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

the problem lurked deep in my project settings. i mixed up gwt 2.3 and 2.2

Am 04.07.2011 16:05, schrieb Juan Pablo Gardella:
Paste the complete stack trace

2011/7/4 Dennis Haupt d.haup...@googlemail.com
mailto:d.haup...@googlemail.com

neither the missing default constructor nor different element types
are the problem. i suddenly can't deserialize any arraylist, no
matter what's inside. is there a way to debug it to see what's wrong?

2011/7/4 Prashant antsh...@gmail.com mailto:antsh...@gmail.com

Hi,

I think Class of the object your want to send via GWTRPC must
have default constructure. And, if you are putting different
kind of objects in one linked list, it will not be deserialised.
I faced this issues long back and I am not very sure about the
solution ...

--
Prashant
code.google.com/p/claymus/ http://code.google.com/p/claymus/

On Mon, Jul 4, 2011 at 2:26 PM, Dennis Haupt
d.haup...@googlemail.com mailto:d.haup...@googlemail.com wrote:

this is the error message i get:
Caused by:
com.google.gwt.user.client.rpc.SerializationException:
java.util.ArrayList/4159755760
at

com.google.gwt.user.client.rpc.impl.SerializerBase.getTypeHandler(SerializerBase.java:153)
at

com.google.gwt.user.client.rpc.impl.SerializerBase.instantiate(SerializerBase.java:114)
at

com.google.gwt.user.client.rpc.impl.ClientSerializationStreamReader.deserialize(ClientSerializationStreamReader.java:111)
at

com.google.gwt.user.client.rpc.impl.AbstractSerializationStreamReader.readObject(AbstractSerializationStreamReader.java:119)
at

com.webfair.gwt.components.genericforms.shared.ButtonRow_FieldSerializer.deserialize(ButtonRow_FieldSerializer.java:18)
at

com.webfair.gwt.components.genericforms.shared.ButtonRow_FieldSerializer.deserial(ButtonRow_FieldSerializer.java:36)
at

com.google.gwt.user.client.rpc.impl.SerializerBase.deserialize(SerializerBase.java:95)

how to find out what exactly is causing the error? the
arraylist itself obviously cannot be the problem, i've sent
a lot of them back and forth.
everything the list contains implements isserializable...

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- --
Mit freundlichen Grüßen,

Dennis Haupt
Plettstrasse 73
81735 München
Handy 0176/80130332
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Questions about complex UI events in MVP mode

2011-07-04 Thread Victor Zhang

Now I'm using MVP and one question about complex UI. I've a flowpanel
and will add or remove some child widgets(say button or listbox).
Because child widgets are dynamically created so I've to capture the
event at their parent that is the flowpanel value, once triggered the
system will be able to decide which child is the source of the event.
But the flowpanel hasn't implemented hasclickhandlers nor
hasselectionahandlers, then how can I implement it with presenter and
view?
I know there is some nested presenter but I would prefer not to go
that way.

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Re: RequestFactoryEditorDriver example?

2011-07-04 Thread David Sanders

I'm getting the same problem as George when I tried setting up a create 
entity form - the entity sent to the server is blank even though I fill out 
the fields.  The thing is I copied the code from a Spring Roo app but I just 
cannot get it to work.

I had a look inside the generated delegate code and the methods 
initialiseSubDelegates() and accept() are empty.  Does this mean I'm not 
adhering to the editor contract properly?

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How to used data binding types generated by Axis2 ADB for communication between browser and web server?

2011-07-04 Thread laolaoyu

Hi,

I am working on a project to create a web-based client for some
existing web services using GWT.

At the web server side, I use Axis2 ADB to generate the web service
client stub to interface with the existing web services. This part
works fine.

But the problem comes when I try to forward the data binding objects
generated by Axis2 to the web browser or the client side through GWT-
RPC, as there's no GWT-translated code for all the library
dependencies like javax.xml.*, org.apache.axis2.databinding.ADBBean,
etc on the client side.

Currently, the solutions I can think of is:
1. Manually create the GWT-RPC compatible versions of all the Axis2
data binding types that need to be communicated to the web browser.
(This will be a huge amount of work which I would like to automate.)

2. Include all the dependencies using super-source in a GWT module
definition file.


Both ways are not nice to me. So I am wondering if there is a more
elegant  and automatic way to resolve the problem?

Thanks

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Does GWT 2.3 provide Synchronous RPC?

2011-07-04 Thread Gunz

Hi,
I was trying to understand and implement RPC in GWT. In the
StockWatcher example provide at GWT official website they implement
the syncronous interface and also the asyncronous interface. However
it also mentions that-  It is not possible to call this version of
the RPC directly from the client. You must create an asynchronous
interface to all your services as shown below.

My questions:
1. Does GWT 2.3 support synchronous RPC?
2. If not, why are we supposed to have the synchronous interface in
the client package?

Thanks

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New Web Application Wizard omits GWT Builder.

2011-07-04 Thread David Lee

I'm creating a new GWT application for App Engine and I find that GWT 
Builder is missing from the list of builders.

GWT Builder is required for the GWT Remote Service wizard to function 
properly.

I manually added this to my .profile
buildCommand
  namecom.google.gdt.eclipse.designer.GWTBuilder/name
  arguments
  /arguments
  /buildCommand
and
naturecom.google.gdt.eclipse.designer.GWTNature/nature

That seemed to fix the Remote Service wizard.

David



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Can't install Google Web Toolkit Developer Plugin under Chrome

2011-07-04 Thread Vlad

I was starting coding with GWT following the tutorial at

   http://code.google.com/intl/it/webtoolkit/doc/latest/tutorial/create.html

when the tutorial tells to connect to the 'development mode code
server' the browser ask to install a plugin.
With Firefox everything works fine, but with Chrome every time I try
to connect to the server it asks to install it

  
http://code.google.com/intl/it/webtoolkit/doc/latest/tutorial/images/MissingPlugin.png

even if it is listed under

  chrome://extensions/

I'd like to know what am I missing.

TIA

Something useful
GWT developer pulgin version: 1.0.9738
Chrome versione  :  12.0.742.112

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Re: Does GWT 2.3 provide Synchronous RPC?

2011-07-04 Thread Kevin Jordan

1.  It does not.
2.  The synchronous interface is the contract that your server-side
must implement.  GWT.create also uses that class to find the Async
class.

On Jul 4, 10:38 am, Gunz ganeshma...@gmail.com wrote:
 Hi,
 I was trying to understand and implement RPC in GWT. In the
 StockWatcher example provide at GWT official website they implement
 the syncronous interface and also the asyncronous interface. However
 it also mentions that-  It is not possible to call this version of
 the RPC directly from the client. You must create an asynchronous
 interface to all your services as shown below.

 My questions:
 1. Does GWT 2.3 support synchronous RPC?
 2. If not, why are we supposed to have the synchronous interface in
 the client package?

 Thanks

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Re: GPE makes GWT projects build extremely long

2011-07-04 Thread Marko Vuksanovic

It seems like I have found a solution that brings down compile time to 
something reasonable (~3 mins). From 1.5h (not 1.30 as I initially wrote :)) 
to 3 mins!!!

I have downloaded xhtml.ent and added the file to User Specified Entries in 
Eclipse's XML Catalog.

Could somebody explain why this can effect compile time this much?

I think this is the same bug as described here 
- http://code.google.com/p/google-web-toolkit/issues/detail?id=5773 

Marko

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Re: Does GWT 2.3 provide Synchronous RPC?

2011-07-04 Thread Dennis Haupt

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

you can fake synchronous execution by calling the next thing at the
end of your async callback handling

Am 04.07.2011 23:31, schrieb Kevin Jordan:
 1.  It does not.
 2.  The synchronous interface is the contract that your server-side
 must implement.  GWT.create also uses that class to find the Async
 class.
 
 On Jul 4, 10:38 am, Gunz ganeshma...@gmail.com wrote:
 Hi,
 I was trying to understand and implement RPC in GWT. In the
 StockWatcher example provide at GWT official website they implement
 the syncronous interface and also the asyncronous interface. However
 it also mentions that-  It is not possible to call this version of
 the RPC directly from the client. You must create an asynchronous
 interface to all your services as shown below.

 My questions:
 1. Does GWT 2.3 support synchronous RPC?
 2. If not, why are we supposed to have the synchronous interface in
 the client package?

 Thanks
 

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Re: Canceling a ClickEvent

2011-07-04 Thread Eugen Paraschiv

My logic was split with the purpose of decoupling two unrelated
functionalities, but seeing how there is no way to do what I was trying to
do, I created a custom event for one of the 2 functionalities. What could
help though is to add a field to the ClickEvent, settable from the outside,
so that at least data can be passed from one place to another (assuming the
event object stays the same - if it doesn't then that's that).
Thanks for the help.
Eugen.

On Mon, Jul 4, 2011 at 6:37 PM, Thomas Broyer t.bro...@gmail.com wrote:

 You should add a single ClickHandler that has its own logic, and the
 ClickHandler you'd like to be called conditionally would be known by this
 specific ClickHandler, which would choose whether to call or not.
 Events in GWT (as in the DOM for instance) are dispatched to all
 handlers/listeners; even throwing an exception wouldn't stop the dispatch.
 If you need another behavior, you have to implement it yourself.

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Re: Does GWT 2.3 provide Synchronous RPC?

2011-07-04 Thread Alain Ekambi

What is actually the reason of making a synchronus call ?
Is there any use case where that s necessary ?

2011/7/4 Dennis Haupt d.haup...@googlemail.com

 -BEGIN PGP SIGNED MESSAGE-
 Hash: SHA1

 you can fake synchronous execution by calling the next thing at the
 end of your async callback handling

 Am 04.07.2011 23:31, schrieb Kevin Jordan:
  1.  It does not.
  2.  The synchronous interface is the contract that your server-side
  must implement.  GWT.create also uses that class to find the Async
  class.
 
  On Jul 4, 10:38 am, Gunz ganeshma...@gmail.com wrote:
  Hi,
  I was trying to understand and implement RPC in GWT. In the
  StockWatcher example provide at GWT official website they implement
  the syncronous interface and also the asyncronous interface. However
  it also mentions that-  It is not possible to call this version of
  the RPC directly from the client. You must create an asynchronous
  interface to all your services as shown below.
 
  My questions:
  1. Does GWT 2.3 support synchronous RPC?
  2. If not, why are we supposed to have the synchronous interface in
  the client package?
 
  Thanks
 

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http://code.google.com/p/gwt4air/
http://www.gwt4air.appspot.com/

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Re: ListEditor doesn't detect changes in sub-editors if using RequestFactory driver

2011-07-04 Thread Thomas Broyer

See http://code.google.com/p/google-web-toolkit/issues/detail?id=6081
This is a regression in 2.3. Hopefully it'll be fixed in 2.4 (honestly, I 
don't mind, I don't run official releases)

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Re: Does GWT 2.3 provide Synchronous RPC?

2011-07-04 Thread Ganesh Magal

Thanks all for the help. There isn't any specific use case where I would
want to implement sync.RPC. I was trying to understand the GWT stockwatcher
example and was wondering if sync interface could directly be used by
creating an object of the sync. interface instead of the Async. interface.

On Mon, Jul 4, 2011 at 4:44 PM, Alain Ekambi jazzmatad...@googlemail.comwrote:

 What is actually the reason of making a synchronus call ?
 Is there any use case where that s necessary ?


 2011/7/4 Dennis Haupt d.haup...@googlemail.com

 -BEGIN PGP SIGNED MESSAGE-
 Hash: SHA1

 you can fake synchronous execution by calling the next thing at the
 end of your async callback handling

 Am 04.07.2011 23:31, schrieb Kevin Jordan:
  1.  It does not.
  2.  The synchronous interface is the contract that your server-side
  must implement.  GWT.create also uses that class to find the Async
  class.
 
  On Jul 4, 10:38 am, Gunz ganeshma...@gmail.com wrote:
  Hi,
  I was trying to understand and implement RPC in GWT. In the
  StockWatcher example provide at GWT official website they implement
  the syncronous interface and also the asyncronous interface. However
  it also mentions that-  It is not possible to call this version of
  the RPC directly from the client. You must create an asynchronous
  interface to all your services as shown below.
 
  My questions:
  1. Does GWT 2.3 support synchronous RPC?
  2. If not, why are we supposed to have the synchronous interface in
  the client package?
 
  Thanks
 

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 http://www.gwt4air.appspot.com/


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Re: ListEditor doesn't detect changes in sub-editors if using RequestFactory driver

2011-07-04 Thread Ignacio Baca Moreno-Torres

Thanks! Your patch look perfect, but GWT developers won't seem to apply it 
in the next release. I'm currently using GWT 2.4.0beta. I hope this will 
change in final release.

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Re: ListEditor doesn't detect changes in sub-editors if using RequestFactory driver

2011-07-04 Thread Thomas Broyer

Feel free to ping in the issue; but it might be better to wait a few days, 
as BobV is on vacation the early part of [this] week and will be studiously 
avoiding the computer

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Re: RootPanel.clear() method slows down after multiple use

2011-07-04 Thread Neil Williams

Thank you, that worked fine.  Guess I got lazy since the garbage collection
under the Java VM is so good.

Thanks for your prompt response.

Neil Williams

On Mon, Jul 4, 2011 at 5:40 PM, Thomas Broyer t.bro...@gmail.com wrote:

 You're adding a ClickHandler each time you switchView, that might very well
 be your issue.

 You should separate building views and showing/hiding them.

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Removing ClickHandler from Button?

2011-07-04 Thread Milan Cvejic

Hi,
I am trying to find a way how to remove ClickHandler from Button,
there is no any method related to this. I see that we can remove
ClickListener with removeClickListener(), but there is no way to
remove ClickHandler.

I am using following code:

Button b = new Button(test);
b.addClickHandler(new ClickHandler() {
@Override
public void onClick(ClickEvent event) {
Window.alert(test);
   }
});

Is there any way to remove ClickHandler?

Thanks.

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Re: Removing ClickHandler from Button?

2011-07-04 Thread Rob Coops

removeClickListner() is deprecated if I am not mistaken...

Anyway the big question is why remove the clickHandler from your button in
the first place a button that can not be clicked is nothing more then a
label with a border...
I would suggest disabling the button or simply have the clickHandler return
instead of doing anything... in both cases for the user nothing will happen
once they click the button.

just my 2 cents.

Regards,

Rob

On Tue, Jul 5, 2011 at 1:05 AM, Milan Cvejic liquidbra...@gmail.com wrote:

 Hi,
 I am trying to find a way how to remove ClickHandler from Button,
 there is no any method related to this. I see that we can remove
 ClickListener with removeClickListener(), but there is no way to
 remove ClickHandler.

 I am using following code:

 Button b = new Button(test);
 b.addClickHandler(new ClickHandler() {
@Override
public void onClick(ClickEvent event) {
Window.alert(test);
   }
 });

 Is there any way to remove ClickHandler?

 Thanks.

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Java 7

2011-07-04 Thread Magno Machado

Java 7 is going to be released in a few days and will introduce some changes
on the java syntax

Is there any current work on supporting java 7 syntax on gwt? Will it be
available on GWT 2.4?

-- 
Magno Machado Paulo
http://blog.magnomachado.com.br
http://code.google.com/p/emballo/

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Re: Removing ClickHandler from Button?

2011-07-04 Thread Milan Cvejic

Yes, removeClickListener() is depricated, and that is why I am trying
to find solution on how to remove ClickHandler.

Just to explain my use case. I am same view with editor framework, so
I need different functionality when button is clicked.
Since button is initialized only once (in view that is constructed
only once) i need to handle event differently.

So now on start of activity i attach Listener and on stop I remove
Listener, and everything works as it should. If I don't remove
Listener, I am having
situation that event is triggered twice or more times.

I can change code to create new instance of View each time, but that
is more cpu intensive than adding and removing listeners.

Cheers.


On Jul 5, 1:14 am, Rob Coops rco...@gmail.com wrote:
 removeClickListner() is deprecated if I am not mistaken...

 Anyway the big question is why remove the clickHandler from your button in
 the first place a button that can not be clicked is nothing more then a
 label with a border...
 I would suggest disabling the button or simply have the clickHandler return
 instead of doing anything... in both cases for the user nothing will happen
 once they click the button.

 just my 2 cents.

 Regards,

 Rob

 On Tue, Jul 5, 2011 at 1:05 AM, Milan Cvejic liquidbra...@gmail.com wrote:
  Hi,
  I am trying to find a way how to remove ClickHandler from Button,
  there is no any method related to this. I see that we can remove
  ClickListener with removeClickListener(), but there is no way to
  remove ClickHandler.

  I am using following code:

  Button b = new Button(test);
  b.addClickHandler(new ClickHandler() {
     @Override
     public void onClick(ClickEvent event) {
         Window.alert(test);
    }
  });

  Is there any way to remove ClickHandler?

  Thanks.

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Resizing parent element when child change size

2011-07-04 Thread Milan Cvejic

Hi Everyone,
can anyone give me a hint how can I implement following situation:

I have SimplePanel with child FlowPanel. What I want to do is to
resize SimplePanel in order to fit
FlowPanel when I add new widgets to the FlowPanel.

Is best way to fire some event when i add new widget to FlowPanel and
than catch that event in SimplePanel
implementation?

Or is there any native support for this?

Thank you,
Cheers

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Re: How to redirect HTML inside a dialogbox

2011-07-04 Thread Oscar

Hi again!

Thanks for your reply. 

If I am understanding it right, I should use the anchor for the links 
contained inside the iframe, right? 

The thing is that I don't have access to the embedded content. I want to 
show an external website inside the iframe but I don't want it to send users 
away from my site.

Is it possible?

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Re: Does GWT 2.3 provide Synchronous RPC?

2011-07-04 Thread mP

You dont want a sync interface for the simple reason that javascript
in the browser is single threaded. If requests back to the server were
sync and not async, your browser would freeze until the response from
the server completed. Even if the request was fast the user would
notice a freeze for even a fraction of second. Imagine a browser that
froze for a second or more each time a request went back to the server
- that would be a disaster.

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Re: Questions about complex UI events in MVP mode

2011-07-04 Thread Victor Zhang

Any ideas buddies?

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Re: Questions about complex UI events in MVP mode

2011-07-04 Thread ashwin.desi...@gmail.com

Victor,

based on what I read, your flowpanel is part of a view which is mapped to a
presenter. You are dynamically adding buttons to the flowpanel. You can
setup click handlers for each of your buttons. if the button is present and
clicked, its handler would be invoked. Inside the handler call the presenter
of the view to perform what ever operation you want to

for example :

interface view {


void setDelegate(Delegate delegate);

interface Delegate {
void save();
}

}


public class MyView extends Composite implements view {

Delegate delegate;


public void setDelegate(Delegate delegate) {
   this.delegate = delegate;

}

public OnLoad() {

FlowPanel panel = new FlowPanel();

Button btn = new Button(Click Me);

panle.add(btn);

btn.addClickHandler( new ClickHandler() {

public void onClick(ClickEvent event) {

delegate.save();
}

});

}

}


Thanks
Ashwin

On Tue, Jul 5, 2011 at 7:41 AM, Victor Zhang victor.rel...@gmail.comwrote:

 Any ideas buddies?

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Handy way of using Google Fonts in GWT

2011-07-04 Thread Brandon Donnelson

I put together some notes on how I'm using Google Fonts in my project. The 
difficulty I had was dealing with css style sheet precedence/inheritance. I 
solved this by putting them into the project.gwt.xml file. I couldn't 
directly include the file, so I copied and pasted the page the google fonts 
include loads.

Find the source here:
http://code.google.com/p/gwt-examples/wiki/GoogleFontsInGwt - wiki with 
source

Brandon Donnelson
http://gwt-examples.googlecode.com

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Re: Standalone zip download of GWT Designer

2011-07-04 Thread Eckhard Rimkus

Dear Eric

when trying to download this zip-File, I receive only an error
message. What is my problem?

Best regards

Eckhard

On 16 Jun., 22:47, Eric Clayberg clayb...@google.com wrote:
 For Eclipse 3.6...

 http://dl.google.com/eclipse/inst/d2gwt/latest/3.6/GWTDesigner_v2.3.1...

 On Jun 14, 5:29 pm, beluga enalp...@yahoo.com wrote:







  Hi -

  I don't get through the corporate firewall with eclipse updater but I
  can transfer azipfile if I get hold of it. Does anyone know how to
  get hold of theGWTDesignerstandalonezip? Ideally the beta, since
  I'm struggling with the type not found bug in the currentGWTrelease.

  Thanks!

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[gwt-contrib] Re: Implements UiBinder rendering for Cells. (issue1466809)

2011-07-04 Thread rdcastro


Ok, I think I have some more useful feedback now. Nice document, I think
we must add support in RenderablePanel to have UiRenderer objects added
to them, that'd be awesome. Components that don't have to be widgets :-)


http://gwt-code-reviews.appspot.com/1466809/diff/6001/user/src/com/google/gwt/uibinder/rebind/UiBinderParser.java
File user/src/com/google/gwt/uibinder/rebind/UiBinderParser.java
(right):

http://gwt-code-reviews.appspot.com/1466809/diff/6001/user/src/com/google/gwt/uibinder/rebind/UiBinderParser.java#newcode279
user/src/com/google/gwt/uibinder/rebind/UiBinderParser.java:279: 
!resourceType.getErasedType().equals(matchingResourceType.getErasedType()))
{
do you need equals? Could it just be assignable?

http://gwt-code-reviews.appspot.com/1466809/diff/6001/user/src/com/google/gwt/uibinder/rebind/UiBinderParser.java#newcode284
user/src/com/google/gwt/uibinder/rebind/UiBinderParser.java:284:
resourceType = matchingResourceType.getErasedType();
you don't need to do this, right? You could just pass
matchingResourceType.getErasedType() to registerField below. I'm just
mentioning because it throw me off a bit and I kept trying to find where
you used this value afterwards and overlooked the return

http://gwt-code-reviews.appspot.com/1466809/diff/6001/user/src/com/google/gwt/uibinder/rebind/UiBinderParser.java#newcode295
user/src/com/google/gwt/uibinder/rebind/UiBinderParser.java:295: if
(writer.getOwnerClass() != null
How about breaking each of these if blocks into its own method? This is
getting really hard to follow.

http://gwt-code-reviews.appspot.com/1466809/diff/6001/user/src/com/google/gwt/uibinder/rebind/UiBinderParser.java#newcode295
user/src/com/google/gwt/uibinder/rebind/UiBinderParser.java:295: if
(writer.getOwnerClass() != null
Can we return or die here if writer.getOwnerClass() == null? It would
make the following code simpler (and the old code seems to assume it's
!= null.

http://gwt-code-reviews.appspot.com/1466809/diff/6001/user/src/com/google/gwt/uibinder/rebind/UiBinderParser.java#newcode423
user/src/com/google/gwt/uibinder/rebind/UiBinderParser.java:423: private
JClassType findRenderParameterType(String resourceName) {
part of this logic is repeated in UiBinderWriter.findRenderParameters().
In particular there you allow multiple render() methods as long as only
one of them has SafeHtmlBuilder as the first parameter. Here you make no
such check.

http://gwt-code-reviews.appspot.com/1466809/diff/6001/user/src/com/google/gwt/uibinder/rebind/UiBinderWriter.java
File user/src/com/google/gwt/uibinder/rebind/UiBinderWriter.java
(right):

http://gwt-code-reviews.appspot.com/1466809/diff/6001/user/src/com/google/gwt/uibinder/rebind/UiBinderWriter.java#newcode458
user/src/com/google/gwt/uibinder/rebind/UiBinderWriter.java:458: *
@return that variable's name.
@param fieldName ...

http://gwt-code-reviews.appspot.com/1466809/diff/6001/user/src/com/google/gwt/uibinder/rebind/UiBinderWriter.java#newcode460
user/src/com/google/gwt/uibinder/rebind/UiBinderWriter.java:460: public
String declareDomIdHolder(String fieldName) throws
UnableToCompleteException {
Don't know if you guys use @Nullable much in GWT code, but this would be
a good place to put that.

http://gwt-code-reviews.appspot.com/1466809/diff/6001/user/src/com/google/gwt/uibinder/rebind/UiBinderWriter.java#newcode1094
user/src/com/google/gwt/uibinder/rebind/UiBinderWriter.java:1094:
private ListJMethod findGetterNames(JClassType owner) {
this method could be static.
In fact, how do you guys feel about adding a utility class to this
directory. UiBinderWriter is huge already, maybe we can clean it up a
bit..

http://gwt-code-reviews.appspot.com/1466809/diff/6001/user/src/com/google/gwt/uibinder/rebind/UiBinderWriter.java#newcode1379
user/src/com/google/gwt/uibinder/rebind/UiBinderWriter.java:1379:
private String renderMethodParameters(JParameter[] renderParameters) {
this too could be static.

http://gwt-code-reviews.appspot.com/1466809/diff/6001/user/src/com/google/gwt/uibinder/rebind/UiBinderWriter.java#newcode1706
user/src/com/google/gwt/uibinder/rebind/UiBinderWriter.java:1706:
fieldManager.initializeWidgetsInnerClass(w, getOwnerClass());
Yeah, I think it is. What this does is generate the block of
build_fieldX(); calls that initialize all fields you've declared. I
think you need it here.

http://gwt-code-reviews.appspot.com/1466809/diff/6001/user/src/com/google/gwt/uibinder/rebind/UiBinderWriter.java#newcode1721
user/src/com/google/gwt/uibinder/rebind/UiBinderWriter.java:1721:
writeRenderParameterDefinitions(w, renderParameters);
wouldn't it be better to declare these before the render() method? Just
because that's probably how we'd right it if it was normal code.

http://gwt-code-reviews.appspot.com/1466809/diff/6001/user/src/com/google/gwt/uibinder/rebind/UiBinderWriter.java#newcode1745
user/src/com/google/gwt/uibinder/rebind/UiBinderWriter.java:1745:
w.write(return (%s) UiRendererUtils.findInnerField(%s, \%s\,

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