from:"Matt"

@ProxyFor(value = Person.class, locator = PersonLocator.class)

then having a PersonLocator which implements LocatorPerson would fix this 
for you.

But in order to get your static service methods (besides just the find 
method), you need a ServiceLocator for your service:

@Service(value = PersonService.class, locator = MyServiceLocator.class)

I'm not sure if the locator for the service is necessary if it has a default 
constructor. We use Spring, so we have a service locator that just pulls the 
bean out of spring.

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Re: Idea of RequestFactory

You could add the with(address) to the findAll call:

requestFactory.personRequest().findAll().with(address).fire(...); 

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RequestFactory entity proxies can't be cloned.

I posted this in gwt-contributors but I feel this might be the more 
appropriate group.

I'm attempting to switch to using RequestFactory instead of GWT-RPC 
and manually creating DTOs. It's been going pretty well, except I've hit 
one use-case that is just a brick wall.
 
I have a panel that is an EditorDocumentProxy which uses 
a RequestFactoryEditorDriver to handle the editing. One of the properties 
of DocumentProxy is another proxy, which I want to edit in a dialog box 
that shows when a button is clicked in the panel. The dialog is another 
Editor.
 
The problem is that anytime something changes in this dialog, I want 
to flush the editor, send the current values to the server for validation, 
and report any errors right away. This works fine, but the dialog box has 
a cancel button, which should revert any changes made in the dialog box.
 
I was able to do this before by storing the original value when it's 
set, and editing a clone while in the dialog box. But entity proxies can't 
be usefully cloned in any way that I currently see, so I'm at a loss as to 
how to get this behavior.
 
Any suggestions? I'm currently on GWT 2.1.1rc1, should be upgrading to 
2.1.1 soon.

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Re: RequestFactory entity proxies can't be cloned.

I can kind of see how your proposed solution would work, and I guess that 
could be done if necessary. I was trying to use separate request contexts, 
and got the aforementioned crossing streams error, but I was editing the 
whole document.

The solution you suggest is hardly ideal though, so I'm wondering if someone 
has another idea.

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[gwt-contrib] RequestFactory entity proxies can't be cloned

2010-12-20 Thread Matt Moriarity

I'm attempting to switch to using RequestFactory instead of GWT-RPC and 
manually creating DTOs. It's been going pretty well, except I've hit one 
use-case that is just a brick wall.

I have a panel that is an EditorDocumentProxy which uses a 
RequestFactoryEditorDriver to handle the editing. One of the properties of 
DocumentProxy is another proxy, which I want to edit in a dialog box that 
shows when a button is clicked in the panel. The dialog is another Editor.

The problem is that anytime something changes in this dialog, I want to 
flush the editor, send the current values to the server for validation, and 
report any errors right away. This works fine, but the dialog box has a 
cancel button, which should revert any changes made in the dialog box.

I was able to do this before by storing the original value when it's set, 
and editing a clone while in the dialog box. But entity proxies can't be 
usefully cloned in any way that I currently see, so I'm at a loss as to how 
to get this behavior.

Any suggestions? I'm currently on GWT 2.1.1rc1, should be upgrading to 2.1.1 
soon.

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Re: To GWT or Not to GWT

2010-12-17 Thread Matt Hill

I don't understand the discussion of widgets here because GWT is clearly not 
designed to be used for multiple embedded widgets on the same page.

You can do it, but it'll require using some lesser-known features and maybe 
even hacks to get it to run as get the initial download for all of the 
gadgets as small as it would be with other libraries. As GWT clearly isn't 
designed for gadgets this discussion is meaningless.

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How to load data BEFORE showing view/presenter?

2010-12-01 Thread Matt H

Hi.

If you poke around some of Google's GWT apps, you'll find that when
you click on anything which requires more data to be loaded, that a
'loading' sign is displayed at the top of the screen, and while
loading, it stays on the current view, and then when the data for the
next view has been downloaded, the loading sign is removed and the new
view is shown.

How can I implement this behavior?

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Re: How to load data BEFORE showing view/presenter?

2010-12-01 Thread Matt H

Anyone? Surely it's simple enough to do?

On Dec 1, 1:27 am, Matt H matt2...@gmail.com wrote:
 Hi.

 If you poke around some of Google's GWT apps, you'll find that when
 you click on anything which requires more data to be loaded, that a
 'loading' sign is displayed at the top of the screen, and while
 loading, it stays on the current view, and then when the data for the
 next view has been downloaded, the loading sign is removed and the new
 view is shown.

 How can I implement this behavior?

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Re: TabLayoutPanel does not listen to width

2010-11-30 Thread Matt H

Yes, the UI widgets are all terrible. Google Closure has much better
widgets.

On Nov 30, 10:10 am, Baloe nielsba...@gmail.com wrote:
 Hi all,

 I'm using a tabLayoutPanel with three tabs. However, the total width
 is now dynamicly created by the width of the content of the current
 tab. But, my first and second tabs are not that wide, so the third tab
 always hangs a bit outside of the tab. How can I set the width of the
 TabLayoutPanel?

 I tried several things, but I can't seem to set the width.
 tabLayoutPanel.setWidth(700px);
 tabLayoutPanel.setSize(700px, 500px);
 tabLayoutPanel.setPixelSize(700, 500);
 with and without tabLayoutPanel.onResize();

 uibinder file:
         g:FlowPanel
                 g:TabLayoutPanel ui:field=tabLayoutPanel
                         barHeight=50 height=600px
                 /g:TabLayoutPanel
                 g:Button ui:field=buttonAdd text={i18n.save} /
         /g:FlowPanel

 I'm adding the tabs in java code after binding.
         tabGeneral = new FlexTable();
         .
         tabLayoutPanel.add(tabGeneral, i18nGeneral.name());

 I really like GWT a lot, but I must say that the ui pieces are really
 quite bad. You can't use certain widgets because it's standard mode
 (or not) without warnings, setting sizes and other basic stuff doesn't
 always work, examples often work in java code but not in the uibinder,
 etc. It would be nice if the widgets themselves were better. It feels
 like temporary broken, or just beta sourcecode. If you can make such a
 good java2javascript compiler, why not create proper widgets as well?

 Thanks!
 Niels

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GWT Integration Test with Spring

2010-08-25 Thread Matt

Hi,

we've built our GWT app using the technique desribe here:

http://pgt.de/2009/07/17/non-invasive-gwt-and-spring-integration-reloaded/

The application context is loaded by referencing it in web.xml, the
servlets have their dependecies injected using a common base class.

When running in integration test mode using a GWTTestCase, we
substitute the Spring context with a test context that provides stubs
for all beans that would otherwise require some backend access:

if
(servletContext.getAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE)
== null) {
  /* Load test context */
} else {
  context =
WebApplicationContextUtils.getRequiredWebApplicationContext(servletContext);
}

This worked very well until GWT 2.1. Has anyone had the same problem
and found a good solution yet? All we've come up is some hacks to find
out whether we're running in integration test mode yet.

Best regards,
Matt

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Re: Is Google a quitter ... Wave is dead

2010-08-19 Thread Matt H

The new Orkut is made with GWT as are many other Google products. I'd
say it's extremely safe.

On Aug 10, 4:39 pm, rudolf michael roud...@gmail.com wrote:
 hey i have paid a license for that exe but didn't use it much as most of the
 website had dynamic UI Generation ;)...so i guess by now it is LGPL ?



 On Tue, Aug 10, 2010 at 6:08 PM, Ashton Thomas ash...@acrinta.com wrote:
  GWT is here to stay. Wave just really help push GWT along as well as
  other technologies within Google. I wish they would have stuck with it
  longer. People aren't ready for wave yet but I think it does serve a
  purpose.

  Yes it’s true. Instantiations’ award-winning Java and Ajax
  development tools and our incredible Eclipse team have been acquired
  by Google. We are all very excited about taking our technology and
  team to the next level - and there is no bigger step up than Google!
  We very much appreciate your patronage and interest through the years.
  As part of Google, we look forward to continuing to work with you.
  Please stay tuned for exciting new announcements coming soon on the
  Google Web Toolkit blog.

 http://www.instantiations.com/

  On Aug 10, 10:34 am, André Moraes andr...@gmail.com wrote:
   This forum has more than 23000 people and the GWT compiler is pretty
  mature.

   Since the compiler is the single most important piece of the entire GWT
   project even if google don't support GWT the community can continue the
   work.

   Google also released the Closure Toolkit (used in almost all applications
  at
   google: gmail, docs, blogger, reader, ...) and the community has little
   momentum and the project is maintained only by 20% people and GWT have
  it's
   own team to work.

   So GWT will have a good path.

   :)

   --
   André Moraes
   Analista de Desenvolvimento de Sistemas
   andr...@gmail.comhttp://andredevchannel.blogspot.com/

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Re: Wave Demise.........sad day for GWT

2010-08-19 Thread Matt H

GWT is used in LOTS of Google products nowadays, and I'd bet that
they're keen to use it more. They clearly love it, so I reckon it's
here to stay.

On Aug 6, 7:24 pm, Arthur Kalmenson arthur.k...@gmail.com wrote:
 I think it's important to remember that GWT was used to rebuild the
 AdWords UI, which is the primary driver of revenue for Google. I'm
 hoping that this will keep GWT top of mind for Googlers for a long
 time to come.

 Also, AFAIK, the mobile Gmail app is also built with GWT.

 --
 Arthur Kalmenson



 On Fri, Aug 6, 2010 at 4:10 AM, hummh hhu...@gmail.com wrote:
  I would expect an official announcement from Google, what impact that
  decision has to the future of GWT. On the one side,  I see many
  companies switching from classic server based web frameworks to GWT.
  On the other side one of the major innovation drivers of GWT is gone.
  So the questions are: what are the long term plans of Google for GWT?
  Are there plans to use it in other Google applications (would be the
  best sign that Google itself believes in GWT)? Are the companies
  investments in GWT future proof? ...

  On 5 Aug., 17:57, Chris Ramsdale cramsd...@google.com wrote:
  Thanks for all of the responses, even the criticism is highly
  beneficial. In regard to theWaveannouncement, we're certainly sad,
  but do realize that many features (Code Splitting, SOYC, another spin
  on MVP+GWT) were born out of the experiment. Where possible, we're
  definitely interested in pulling in some of theWavefunctionality
  into GWT (widgets obviously being top of mind).

  Re: Instantiations, we're extremely excited to have the team joining.
  Right now, we're heads down integrating the team and the products, but
  we'll keep the GWT community posted when we have more information.

  -- Chris

  On Aug 5, 12:04 am, Steve Wart st...@wart.ca wrote:

   Holy smokes, first SpringSource acquires GemStone, now this.

   Did someone in Silicon Valley suddenly figure out that Smalltalk is 
   cool? :)

   FWIW, I've had far more success getting JSON to work with Smalltalk
   and GWT than we ever had with 13 years of Java and XML. Coincidence?

   On Wed, Aug 4, 2010 at 6:21 PM, Shawn Brown big.coffee.lo...@gmail.com 
   wrote:
I just worry about GWT itself.  Google may kill GWT some day. Our
project heavy uses it:(.

Not anytime soon I imagine.

Look Google just acquired instantiations which makes the gwtdesigner.

   http://www.instantiations.com/

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Re: Introducing Guit: a next generation gwt framework

2010-08-19 Thread Matt H

Well, it's made with GWT of course!

On Aug 19, 12:18 am, Thomas Broyer t.bro...@gmail.com wrote:
 On 18 août, 15:17, Joe Hudson joe...@gmail.com wrote:

  Hi Gal,

  Please consider registering this project with GWT Marketplace 
  (http://www.gwtmarketplace.com).
  I'm hoping this website will help GWT
  developers find GWT-based products that they are looking for but it
  only works, of course, if people register.  Thanks.

 How is GWT Marketplace different from Google's GWT 
 Gallery?http://gwtgallery.appspot.com/

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Re: [gwt-contrib] Phasing in a new, unified linker

2010-07-29 Thread Matt Mastracci

On 2010-07-26, at 4:56 PM, John Tamplin wrote:

 Is the new linker designed to curtail extension, or to sanely encourage it?  
 The existing primary linkers ended up getting extended in brittle ways.
 
 That's a good point. Let's make it a final class to start with, and open up 
 extension points later as issues come up. There are no known needs for 
 extensions at this point.
 
 Well, we do know there will be other linkers, and if there aren't extension 
 points defined they will be done via cut-and-paste, which is what led to the 
 current state we are in.

I'd prefer if these classes weren't final, with a big warning that they may 
have breaking changes, even in minor revisions. I don't know if it's possible 
to predict every tweak that developers might want to make to the primary 
linker, but allowing a subclass to just specify a different template script 
certain covers a great deal of ground.

With the current hybrid JS/Java approach to linking, I think it would be very 
difficult to properly support any extensibility. 

I think it might be possible to move the template JS files to GWT-translated 
code with extension points managed through rebinding and overriding. Until 
then, making changes that involve JS modifications effectively require you to 
cut and paste the whole file. 

Matt.

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[gwt-contrib] Re: Adds a new CrossSiteIframeLinker. This linker works cross-site, (issue726802)

2010-07-29 Thread Matt Mastracci

[manually forwarding to list due to subscription bug...]

Wow, this looks great. This is exactly what I had imagined.

Once dev mode is in place we should be able to switch dotspots over to
this from our current custom linker.

I was looking through the latest SelectionScriptLinker in trunk and
didn't see where __COMPUTE_SCRIPT_BASE__ was defined. Is that new?


http://gwt-code-reviews.appspot.com/726802/diff/1/3
File dev/core/src/com/google/gwt/core/linker/CrossSiteIframeTemplate.js
(right):

http://gwt-code-reviews.appspot.com/726802/diff/1/3#newcode88
dev/core/src/com/google/gwt/core/linker/CrossSiteIframeTemplate.js:88:
(query.indexOf('gwt.hybrid') == -1);
Is it worth trimming the old gwt.hosted baggage from here?

http://gwt-code-reviews.appspot.com/726802/diff/1/3#newcode110
dev/core/src/com/google/gwt/core/linker/CrossSiteIframeTemplate.js:110:
scriptFrame.style.cssText = 'position:absolute; width:0; height:0;
border:none';
These should probably be !important to avoid user CSS accidentally
styling them. Also, left: -1000px and top: -1000px, since absolute by
default will place them at the end of the document potentially causing
sizing issues.

http://gwt-code-reviews.appspot.com/726802/diff/1/3#newcode265
dev/core/src/com/google/gwt/core/linker/CrossSiteIframeTemplate.js:265:
softPermutationId = Number(strongName.substring(idx + 1));
This code is probably from the older linker, but Number(x) can also be
written as +(x).

http://gwt-code-reviews.appspot.com/726802/show

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Web server magic?

2010-06-17 Thread Matt

When I run a GWT application in eclipse, what is serving the web
page?  I haven't installed a web server, yet something is answering
requests on port  when I run the application through eclipse. Does
the eclipse plugin include a web server?

I'm having problems loading pages now... says:

HTTP ERROR: 503

Problem accessing /. Reason:

SERVICE_UNAVAILABLE
Powered by Jetty://


So I guess Jetty is running somehow... but I don't know how to fix
this problem since everything is magic and hidden from me.

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Re: TabLayoutPanel with scroll buttons

2010-05-31 Thread Matt

Hi,

you won't be able to use this custom widget directly within an
UiBinder file due to this issue: 
http://code.google.com/p/google-web-toolkit/issues/detail?id=4342.

You should be able to wrap it into a Composite and then reference that
Composite in your UiBinder file though.

Hth,
Matt

On 18 Mai, 15:58, rkvaja rikesh.v...@gmail.com wrote:
 I'm trying to use this with UIBinder but getting issues telling me
 that I am missing required attributes barUnit, barHeight etc. Has
 anybody got this working with UIBinder?

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Limit generator invocation count

2010-05-26 Thread Matt

Hi,

I've written a custom generator, which functionally works fine. The
only slightly nagging point is that the generator generates the same
source code for all permutations, but still gets invoked once per
permutation (which means quite a few times for an app with i18n...).
This increases build time - is there any way to only invoke the
generator once, or to somehow cache the generated code so speed things
up?

Thanks for any help,
Matt

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Re: DockLayoutPanel Sample Code No Style Issue

2010-05-24 Thread Matt

I'm really surprised no one else has chimed in on this.  I was
thinking it should be just as simple as a missing CSS.

Any suggestions are greatly appreciated.
-m

On May 21, 11:42 am, Matt ima...@gmail.com wrote:
 Yep, I have !doctype html at the top of my html file..

 On May 21, 11:40 am, kozura koz...@gmail.com wrote:





  You have !DOCTYPE html at the top of your HTML file to set the
  browser to standards mode?

  On May 21, 10:01 am, Matt ima...@gmail.com wrote:

   I tried the DockLayoutCode which is presented in the 
   Javadoc:http://google-web-toolkit.googlecode.com/svn/javadoc/2.0/com/google/g...
   DockLayoutPanel p = new DockLayoutPanel(Unit.EM);
   p.addNorth(new HTML(header), 2);
   p.addSouth(new HTML(footer), 2);
   p.addWest(new HTML(navigation), 10);
   p.add(new HTML(some content));

   // I added this:
   RootLayoutPanel.get().add(p);
   All this code was obviously placed inside the onModuleLoad
   substituting the sample Eclipse startup code when you create a new
   GWT app. The output looked nothing like what was presented on
   DockLayoutPanel in the Developer's 
   Guide:http://code.google.com/webtoolkit/doc/latest/DevGuideUiPanels.html

   Am I missing a css or something else really simple?
   Thanks!
   -m

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DockLayoutPanel Sample Code No Style Issue

2010-05-21 Thread Matt

I tried the DockLayoutCode which is presented in the Javadoc:
http://google-web-toolkit.googlecode.com/svn/javadoc/2.0/com/google/gwt/user/client/ui/DockLayoutPanel.html
DockLayoutPanel p = new DockLayoutPanel(Unit.EM);
p.addNorth(new HTML(header), 2);
p.addSouth(new HTML(footer), 2);
p.addWest(new HTML(navigation), 10);
p.add(new HTML(some content));

// I added this:
RootLayoutPanel.get().add(p);
All this code was obviously placed inside the onModuleLoad
substituting the sample Eclipse startup code when you create a new
GWT app. The output looked nothing like what was presented on
DockLayoutPanel in the Developer's Guide:
http://code.google.com/webtoolkit/doc/latest/DevGuideUiPanels.html

Am I missing a css or something else really simple?
Thanks!
-m

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Re: DockLayoutPanel Sample Code No Style Issue

2010-05-21 Thread Matt

Yep, I have !doctype html at the top of my html file..

On May 21, 11:40 am, kozura koz...@gmail.com wrote:
 You have !DOCTYPE html at the top of your HTML file to set the
 browser to standards mode?

 On May 21, 10:01 am, Matt ima...@gmail.com wrote:





  I tried the DockLayoutCode which is presented in the 
  Javadoc:http://google-web-toolkit.googlecode.com/svn/javadoc/2.0/com/google/g...
  DockLayoutPanel p = new DockLayoutPanel(Unit.EM);
  p.addNorth(new HTML(header), 2);
  p.addSouth(new HTML(footer), 2);
  p.addWest(new HTML(navigation), 10);
  p.add(new HTML(some content));

  // I added this:
  RootLayoutPanel.get().add(p);
  All this code was obviously placed inside the onModuleLoad
  substituting the sample Eclipse startup code when you create a new
  GWT app. The output looked nothing like what was presented on
  DockLayoutPanel in the Developer's 
  Guide:http://code.google.com/webtoolkit/doc/latest/DevGuideUiPanels.html

  Am I missing a css or something else really simple?
  Thanks!
  -m

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Re: accents problem

2010-05-18 Thread Matt

Hi,

with your problem description being a bit vague, there are a few
points where you might be going wrong:

1) The encoding of the file you're reading - you said you changed it
to iso-8859-1, which might be fine - you can check if it displays
correctly in e.g. Eclipse. However, when working with GWT I would
suggest always working with UTF-8 if possible to avoid most encoding
problems

2) I guess you're reading the file on the server. It will quite
probably run using UTF-8 as default encoding, which you can check e.g.
with System.getProperty(file.encoding). The encoding when reading
the file needs to match the encoding of the file itself, you can
specify that in your InputStreamReader's (or however you read the
file) constructor.

3) The encoding of data coming from the server needs to match the
content-type meta tag in your app's HTML page

Hth,
Matt

On 18 Mai, 10:46, laurent bagno_laur...@hotmail.com wrote:
 I've a problem when i try to print accents.My application parse a csv
 file with the persons(first-lastName).Some having like
 Véronique,Benoît,...
 With Eclipse, doing click-droit, 'properties', 'Resources', i change
 to iso-8859-1.It's the same for firefox but never doing. I've a
 printing with a question mark inside a little square.

 Thanks for your request

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GWT, SmartGWT, Google Visualization Help

2010-05-12 Thread Matt

I'm trying to draw a Google Column Chart into SmartGWT draggable
window.  I can draw the chart correctly.  I can draw the window
correctly.  I am just having trouble drawing the chart into the
window.  Does anyone have any examples or tutorials of doing this?

Thanks!
-m

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Re: GWT, SmartGWT, Google Visualization Help

2010-05-12 Thread Matt

I've solved my problem but am wondering if anyone else is doing
similar development..

On May 12, 2:10 pm, Matt ima...@gmail.com wrote:
 I'm trying to draw a Google Column Chart into SmartGWT draggable
 window.  I can draw the chart correctly.  I can draw the window
 correctly.  I am just having trouble drawing the chart into the
 window.  Does anyone have any examples or tutorials of doing this?

 Thanks!
 -m

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TabLayoutPanel with scroll buttons

2010-05-06 Thread Matt

Hi,

the GWT TabLayoutPanel doesn't show scroll buttons if the visible
panel bar becomes smaller then width of all open tab headers.

There is an enhacement request issue pending that might be implemented
in a future version of GWT, until then you might find the attached
code snippet useful that extends TabLayoutPanel to show scroll buttons
if necessary.

Cheers,
Matt

package com.gwtscrolledtablayoutpanel.ui;

import com.google.gwt.dom.client.Style.Unit;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.event.logical.shared.ResizeEvent;
import com.google.gwt.event.logical.shared.ResizeHandler;
import com.google.gwt.event.shared.HandlerRegistration;
import com.google.gwt.resources.client.ImageResource;
import com.google.gwt.user.client.Command;
import com.google.gwt.user.client.DeferredCommand;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.ui.FlowPanel;
import com.google.gwt.user.client.ui.Image;
import com.google.gwt.user.client.ui.LayoutPanel;
import com.google.gwt.user.client.ui.TabLayoutPanel;
import com.google.gwt.user.client.ui.Widget;

/**
 * A {...@link TabLayoutPanel} that shows scroll buttons if necessary
 */
public class ScrolledTabLayoutPanel extends TabLayoutPanel {

private static final int IMAGE_PADDING_PIXELS = 4;

private LayoutPanel panel;
private FlowPanel tabBar;
private Image scrollLeftButton;
private Image scrollRightButton;
private HandlerRegistration windowResizeHandler;

private ImageResource leftArrowImage;
private ImageResource rightArrowImage;

public ScrolledTabLayoutPanel(double barHeight, Unit barUnit,
ImageResource leftArrowImage, ImageResource rightArrowImage) {
super(barHeight, barUnit);

// The main widget wrapped by this composite, which is a 
LayoutPanel
with the tab bar  the tab content
panel = (LayoutPanel) getWidget();

// Find the tab bar, which is the first flow panel in the
LayoutPanel
for (int i = 0; i  panel.getWidgetCount(); ++i) {
Widget widget = panel.getWidget(i);
if (widget instanceof FlowPanel) {
tabBar = (FlowPanel) widget;
break; // tab bar found
}
}

initScrollButtons();
}

@Override
public void add(Widget child, Widget tab) {
super.add(child, tab);
checkIfScrollButtonsNecessary();
}

@Override
public boolean remove(Widget w) {
boolean b = super.remove(w);
checkIfScrollButtonsNecessary();
return b;
}

@Override
protected void onLoad() {
super.onLoad();

if (windowResizeHandler == null) {
windowResizeHandler = Window.addResizeHandler(new 
ResizeHandler() {
@Override
public void onResize(ResizeEvent event) {
checkIfScrollButtonsNecessary();
}
});
}
}

@Override
protected void onUnload() {
super.onUnload();

if (windowResizeHandler != null) {
windowResizeHandler.removeHandler();
windowResizeHandler = null;
}
}

private ClickHandler createScrollClickHandler(final int diff) {
return new ClickHandler() {
@Override
public void onClick(ClickEvent event) {
Widget lastTab = getLastTab();
if (lastTab == null)
return;

int newLeft =
parsePosition(tabBar.getElement().getStyle().getLeft()) + diff;
int rightOfLastTab = getRightOfWidget(lastTab);

// Prevent scrolling the last tab too far away 
form the right
border,
// or the first tab further than the left 
border position
if (newLeft = 0  (getTabBarWidth() - newLeft 
 (rightOfLastTab
+ 20))) {
scrollTo(newLeft);
}
}
};
}

/** Create and attach the scroll button images with a click handler
*/
private void initScrollButtons() {
scrollLeftButton = new Image(leftArrowImage);
int leftImageWidth = scrollLeftButton.getWidth();
panel.insert(scrollLeftButton, 0

minimizing latency

2010-04-23 Thread Matt Rosencrantz

Hello,

I'm trying to write a gwt application and it's very latency
sensitive.  In order to get back to the client faster I would like to
respond to the client in the middle of my GWT implementation
function.  Also I'm using appengine so I can't just spawn a thread to
do the work.

Normally in a servlet I would get called with a response object that
lets me write back to the client whenever I want:

doGet(request, response) {
  ... Do lots of time consuming work ...
  response.write_output_to_client();
  response.close_stream();
  .. Do lots more time consuming work...
}

But in GWT the normal flow is to do all the work in your function and
the clients get the data at the very end.

I'm sure I could overload doGet/Post and hack something together, but
I was wondering if anyone had already tackled this?  I'd really like
to get to something like:

void myRPCMethod(...normal method params...,
   RPCResponderRPCReturnType responder) {
... Do lots of time consuming work ...
responder.respond(result);
   ... Do lots more time consuming work...
}

Thanks,
Matt

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[gwt-contrib] GPE JSNI formatting issues

2010-04-02 Thread Matt Mastracci

Hey all,

I've been fighting this JSNI formatting bug for a while now. The Google Plugin 
for Eclipse is basically flattening the indents on all my JSNI methods when 
using the format command. With the 'format on save' option chosen in Eclipse, 
it unformats all the JSNI in the file after a save operation:

http://code.google.com/p/google-web-toolkit/issues/detail?id=4369

Any possibility of getting this on the roadmap for a quick fix?  I've included 
a repro case in the bug that should demonstrate it in a clean Eclipse workspace.

Thanks,
Matt.



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[gwt-contrib] Re: GPE JSNI formatting issues

2010-04-02 Thread Matt Mastracci

I think I worded this more clearly in the bug, but it's actually the format 
save action that causes the JSNI to be unformatted, not the regular format 
action.  The regular format action correctly ignores JSNI formatting, while the 
format save action seems to eat all of the leading whitespace.

I had to paste the entire contents of an ancient version of Douglas Crockford's 
JSON library into a JSNI function earlier today as part of a unit test and I 
ended up with a few hundred lines of unindented circa-2005 Javascript after 
saving. :)

On 2010-04-02, at 10:13 AM, Matt Mastracci wrote:

 Hey all,
 
 I've been fighting this JSNI formatting bug for a while now. The Google 
 Plugin for Eclipse is basically flattening the indents on all my JSNI methods 
 when using the format command. With the 'format on save' option chosen in 
 Eclipse, it unformats all the JSNI in the file after a save operation:
 
 http://code.google.com/p/google-web-toolkit/issues/detail?id=4369
 
 Any possibility of getting this on the roadmap for a quick fix?  I've 
 included a repro case in the bug that should demonstrate it in a clean 
 Eclipse workspace.
 
 Thanks,
 Matt.
 
 
 

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Re: [gwt-contrib] Proposal for including easyXDM as a new cross-domain Transport/RPC

2010-03-22 Thread Matt Mastracci

Quickly browsing easyXDM and comparing to gwt-rpc-plus, it looks like the 
designs of both are very similar. easyXDM uses the term 'socket'  where 
gwt-rpc-plus uses the term 'transport'. Both of them allow you to plug in the 
appropriate transport behind a socket-like interface. easyXDM adds some 
interesting additional functionality like automatic reliability and fragmenting.

I believe that the current transport-focused interface used in both of these 
libraries is too limited to deal with some of the future technologies coming 
out of the HTML5 camp and too inflexible to deal with the use cases outside of 
being a dumb transport client for an RPC server somewhere else.  I think that 
it would be beneficial to the GWT community if whatever transport layer makes 
it into GWT starts from the drawing board.  

Here's a brain-dump of some of the issues facing anyone attempting to tackle a 
generic transport library:

1. Unless a transport explicitly provides send and receive channels internally 
(ie: XMLHttpRequest), it's best to keep it as separate Sender/Receiver 
interfaces. There are a number of places where it's useful to compose two 
different transports (ie: see the next item - POST to send, postMessage to 
receive). This also allows you to handle inter-window RPC where requests come 
in through a receive channel and are sent back out over a send channel.

2. The best way I've found to deal with a cross-domain transport in HTML is to 
do a POST to a hidden iframe or ActiveXObject which either uses postMessage 
or window.name to send back its result. This transport needs to switch at 
runtime between the two methods: many of the browsers shipping today have 
supported versions out that don't do postMessage. Additionally, window.name 
won't be supported in modern browsers in the future: the spec mandates that it 
gets cleared during cross-domain navigation.

3. Channel metadata is very important to expose to clients. In the case of 
HTTP, this includes status codes and headers. In the case of postMessage, this 
includes the message domain and the sending window. In some cases you'll want 
to tunnel that metadata overtop of another transport via JSON. For instance, 
when you have a background page in a Chrome extension that accepts events over 
Chrome's internal messaging and converts them into XMLHttpRequest events to 
work around the cross-domain restrictions, you'll want to get back something 
equivalent to having done the RPC directly yourself.

4. Some transports send live JSON objects, while others send text. In the case 
of web workers, some (but not all) browsers will automatically parse and 
instantiate JSON on the receiving end if it's sent in that form, while others 
will accept the JSON objects and emit them as strings on the receiving end. 

5. Some send/receive pairs of channels correlate messages internally, while 
others have no concept of correlation. In gwt-rpc-plus, correlation is managed 
internally by each transport, but it would be a lot cleaner if there was 
something you could layer on top of a send and receive channel that turns it 
into a bidirectional channel with message correlation.

6. There are some interesting transport concepts that need to be validated 
against any design. For instance: the W3C's crazy MessageChannel spec requires 
both a half post-message transport (a sender or receiver to send a port 
reference) and a sender/receiver pair for the entangled channel.

Matt.

On 2010-03-22, at 8:42 AM, Joel Webber wrote:

 [+matt]
 
 I can't speak to any experience with either of these libraries, but this also 
 sounds like the work Matt's been doing here:
   http://code.google.com/p/gwt-rpc-plus/
 
 Can anyone speak to the relationship between these libraries? I'd love to see 
 a standard way of dealing with XDM make it into the GWT core.
 
 On Sun, Mar 21, 2010 at 10:59 AM, Sean Kinsey okin...@gmail.com wrote:
 I've seen many questions on the net on how to enable cross-domain
 requests with GWT, and most of the solutions I've seen mentioned has
 been less efficient than what I know the easyXDM library can offer.
 
 For those who has never heard of it, easyXDM is a library that
 conveniently abstracts away all the hassle of hash/fragments,
 window.name and postMessage, and that exposes a simple and reliable
 Socket that allows strings to be passed between two documents (no
 reloads, so both documents can keep state).
 Whatever kind of transport being used internally (based on what the
 browser offers etc) the stack will provide _reliability_, queuing (and
 fragmenting if necessary) and security.
 
 Whats interesting with the library is that it also contains an Rpc
 class, that allows you to invoke methods, with complex arguments
 (JSON), and with or without return values.
 
 From the consumers calling an RPC method is as easy as doing
 //set up rpc object, only a few simple lines
 var rpc = new easyXDM.Rpc(...
 
 
 rpc.nameOfMethod(arg1, arg2, arg3, function

Re: [gwt-contrib] IE9 preview support ?

2010-03-21 Thread Matt Mastracci

I'm seeing the same thing in our application. I haven't had time to dig into 
it, but I'm seeing 'unknown event DOMContentLoaded' in the developer tools 
console.  The GWT Showcase example works, however.  Maybe some sort of doctype 
issue?

On 2010-03-20, at 4:53 AM, nicolas.deloof wrote:

 Hi,
 
 I tried my GWT 2.0 webapp with the recent test build of IE9 and it
 doesn't display. I wonder IE9 is not recognized as IE, event whit IE8
 mode set.
 
 The browser may use a unsuported user-agent ID, is there allready any
 test done on this new browser ? roadmap to support its better
 support for standards ?
 
 Cheers,
 Nicolas
 
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Re: [gwt-contrib] deRPC experiences

2010-03-18 Thread Matt Mastracci

On 2010-03-18, at 12:15 PM, BobV wrote:

  - If the GWT module base path URL isn't absolute, getRequestModuleBasePath 
 fails. We use relative base paths to simplify our hosted mode development.
 
 Can you describe this setup in more detail?  What is the canonical URL
 that the request's url should be evaluated against?

Our setup is pretty complex - we've got our own version of XSLinker that 
supports development mode, fragments and being embedded inline in the host 
page. Because we're inlining the selection script, we ripped out the existing 
code to compute the module base. It was replaced with a single meta tag read by 
the inlined selection script. 

At development time, we have a custom servlet filter that generates the host 
pages dynamically from a set of templates and content files (based on the same 
code that generates these files statically for deployment to our website). The 
filter writes out the script to load the selection script dynamically, as 
well as a header that gets picked up by our custom cross-domain linker. This 
filter currently writes the base URL relatively, ie:

meta name=ds:base content=/com.dotspots.ModuleName/ /

I can work around it by picking up the hostname and port from the request in 
the servlet filter and prefixing the base URL we write with those. I've never 
had an issue with the relative base URL before and haven't run across code 
anywhere in the user library that assumes the base URL is absolute. It's pretty 
simple to fix on our end, however.

  - WebModePayloadSink seems to throw an NPE when push a null 
 constructorIdent. I'm still digging into this, but it might be related to 
 the fact that we're sending enums with enum value methods across the wire:
 
 The code that you posted is about creating a payload for a object that
 has custom serialization.  What does looking at the fields of the
 InvokeCustomFieldSerializerCommand object show?

I don't have an easy way to debug our server against a compiled web mode (we 
have a launch target for that, but it was so infrequently used that it 
bitrotted). It might be easier for me to try to reproduce this in a standalone 
project. I'll give that a shot and report back.

 RpcServlet is much nicer to work with that RemoveServiceServlet, kudos. It 
 would be nice if the service object (passed into decodeRequest and 
 invokeAndStreamResponse) were retrieved via a protected method, rather than 
 assumed to be 'this'. We wire the service object into the servlet at 
 configuration time via Spring, so I had to duplicate the contents of 
 processCall.
 
 How about a
 
 protected Object getRequestTargetObject() {
  return this;
 }

That would be perfect, thanks!

Matt.


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Re: [gwt-contrib] deRPC experiences

2010-03-18 Thread Matt Mastracci

On 2010-03-18, at 12:15 PM, BobV wrote:

 The code that you posted is about creating a payload for a object that
 has custom serialization.  What does looking at the fields of the
 InvokeCustomFieldSerializerCommand object show?

I can reproduce this in a barebones project. It looks like it's this class 
we're using to avoid RPC pulling in all the subclasses of HashMap. We have 
similar classes for ArrayList and HashSet, but those all have custom 
serializers. I don't know why I didn't create a custom serializer for this 
class as well (though there aren't any ill effects with standard RPC).

public final class RpcMapT, V extends HashMapT, V implements IsSerializable 
{
private static final long serialVersionUID = 0L;

public RpcMap() {
}

public RpcMap(final MapT, V map) {
super(map);
}

public static X, Y RpcMapX, Y wrap(final MapX, Y map) {
return map == null ? null : new RpcMapX, Y(map);
}
}

Here are the fields of InvokeCustomFieldSerializerCommand:

x   InvokeCustomFieldSerializerCommand  (id=59) 
instantiatedTypeClassT (com.dotspots.rpctest.client.RpcMap) 
(id=102)  
manuallySerializedType  ClassT (java.util.HashMap) (id=107)   
serializer  ClassT 
(com.google.gwt.user.client.rpc.core.java.util.HashMap_CustomFieldSerializer) 
(id=108) 
setters ArrayListE  (id=109)  
values  ArrayListE  (id=116)  

Matt.

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Re: [gwt-contrib] Re: Avira and HTML/CryptedGen (again)

2010-03-17 Thread Matt Mastracci

My previous attempt to submit our code as a false positive disappeared into a 
black hole. I did get back a note saying it was acknowledged as a false 
positive and our user reports disappeared for a while. Unfortunately, it looks 
like they just hacked around the issue - the reports showed up again a few days 
ago.

The original goal was to figure out what in the code was tickling the signature 
to see if it was RPC-related (which might look malicious to some). When I got 
the signature down to a handful of byte strings that matched string operations, 
I just ended up shaking my head.

I found a technical support number that I can try calling and seeing if I can 
get escalated. If that doesn't work, it might be easier to submit a minimal, 
harmless testcase from those keywords as a false positive. :)

Matt.

On 2010-03-17, at 8:48 AM, Joel Webber wrote:

 This is Avira, isn't it? Ddi you ever hear anything back from them about 
 this? It seems like it really ought to be fixed on their end, though I 
 applaud your spelunking for a workaround :)
 
 On Tue, Mar 16, 2010 at 3:08 PM, Matt Mastracci matt...@mastracci.com wrote:
 On Mar 16, 12:42 pm, Matt Mastracci matt...@mastracci.com wrote:
 
   Holy cow -- how do they think that is an acceptable measure?  Surely they 
   could at least change the warning to say potentially dangerous JS or 
   something rather than declaring it a virus.
 
  This probably will likely affect a significant number GWT applications that 
  use RPC. Avira seems to check files ending in .js* and .html* for this 
  pattern.  I verified that the scanner intercepts these patterns in HTTP 
  traffic and detects them in IE cache files.  There might be some negative 
  patterns as well: Avira doesn't block my message in the Google Groups web 
  interface, but it does block it when viewing the raw message source.
 
 Even better: it turns out that if you put the string google anywhere
 in the file matching CryptedGen, it no longer matches the heuristic. I
 imagine that it would pick up the string from the class metadata for
 those not using -XdisableClassMetadata.
 
 So this is a virus:
 
 for eval .fromcharcode .charcodeat math.min 0,0,0,0,0,0
 
 And this is not:
 
 google for eval .fromcharcode .charcodeat math.min 0,0,0,0,0,0
 
 The easiest solution for us seems to be putting the string Google Web
 Toolkit in a comment in our header.
 
 Matt.
 
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Re: [gwt-contrib] Re: Avira and HTML/CryptedGen (again)

2010-03-17 Thread Matt Mastracci

 
 I found a technical support number that I can try calling and seeing if I can 
 get escalated. If that doesn't work, it might be easier to submit a minimal, 
 harmless testcase from those keywords as a false positive. :)
 
 Given their approach, that seems likely to get that exact source added to a 
 whitelist :).


That might not be far from the truth. :)

I called their tech support line and left a message to be passed on to their 
technical team, but the tech's solution was you'll have to submit your code 
again every time it changes. He said he'd pass on the message, but wouldn't 
guarantee that anyone would contact me with anything more than use the false 
positive form again.  Gah.

Matt.

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Re: [gwt-contrib] Re: Avira and HTML/CryptedGen (again)

2010-03-17 Thread Matt Mastracci

On 2010-03-17, at 1:15 PM, John Tamplin wrote:

 I called their tech support line and left a message to be passed on to their 
 technical team, but the tech's solution was you'll have to submit your code 
 again every time it changes. He said he'd pass on the message, but wouldn't 
 guarantee that anyone would contact me with anything more than use the false 
 positive form again.  Gah.
 
 Are you a customer or know someone who is?  If so, perhaps calling customer 
 support with I am going to stop using this because of bogus false positives 
 would get a better response.

Unfortunately not. I first heard about this company's anti-virus through some 
of our users (who are basically anonymous commenters on our Chrome extension 
page). I ran the heuristic tests against a trial version that I downloaded.

If anyone on this list is an Avira customer and wants to try contacting 
tech-support to help add some pressure, their USA toll-free number is: +1 888 
880 2925. 

cc'd dflorey, t.broyer and fatompa as three people who mentioned these false 
positives before and appear to be Avira customers (or know someone who is).

Matt.

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[gwt-contrib] Avira and HTML/CryptedGen (again)

We started getting reports of the HTML/Crypted.Gen being detected in our 
Chrome extension again. I've managed to reproduce it - the signature seems to 
be the exact set of strings they use:


.fromCharCode
.charCodeAt
nodeValue
for
0,0,0,0,0,0
Math.min


I kid you not - this is their signature for an encrypted JS virus. I can't seem 
to remove a single character from any of these tokens without turning it from a 
dangerous virus to a harmless bit of JS.  Order doesn't seem to be important 
(although I haven't experimented with this that much).

I think I'll be able to work around this by replacing any sequence of six zeros 
separated by commas with the sequence 0,0,0,[space]0,0,0.

Matt.

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Re: [gwt-contrib] Avira and HTML/CryptedGen (again)

 I kid you not - this is their signature for an encrypted JS virus. I can't 
 seem to remove a single character from any of these tokens without turning it 
 from a dangerous virus to a harmless bit of JS.  Order doesn't seem to be 
 important (although I haven't experimented with this that much).
 
 I think I'll be able to work around this by replacing any sequence of six 
 zeros separated by commas with the sequence 0,0,0,[space]0,0,0.
 
 Holy cow -- how do they think that is an acceptable measure?  Surely they 
 could at least change the warning to say potentially dangerous JS or 
 something rather than declaring it a virus.

This is pretty unbelievable to me as well. I imagine that the process involved 
someone finding a mutating JS virus, found six strings that it always 
contained, put them in and figured that it was safe after surfing around for a 
bit without any false positives.

After experimenting a bit further, I discovered that nodeValue is actually 
matching case insensitively for eval (which makes a little more sense).  This 
means that the signature is something like for eval .fromcharcode .charcodeat 
math.min 0,0,0,0,0,0

This probably will likely affect a significant number GWT applications that use 
RPC. Avira seems to check files ending in .js* and .html* for this pattern.  I 
verified that the scanner intercepts these patterns in HTTP traffic and detects 
them in IE cache files.  There might be some negative patterns as well: Avira 
doesn't block my message in the Google Groups web interface, but it does block 
it when viewing the raw message source.

Matt.

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[gwt-contrib] Re: Avira and HTML/CryptedGen (again)

On Mar 16, 12:42 pm, Matt Mastracci matt...@mastracci.com wrote:

  Holy cow -- how do they think that is an acceptable measure?  Surely they 
  could at least change the warning to say potentially dangerous JS or 
  something rather than declaring it a virus.

 This probably will likely affect a significant number GWT applications that 
 use RPC. Avira seems to check files ending in .js* and .html* for this 
 pattern.  I verified that the scanner intercepts these patterns in HTTP 
 traffic and detects them in IE cache files.  There might be some negative 
 patterns as well: Avira doesn't block my message in the Google Groups web 
 interface, but it does block it when viewing the raw message source.

Even better: it turns out that if you put the string google anywhere
in the file matching CryptedGen, it no longer matches the heuristic. I
imagine that it would pick up the string from the class metadata for
those not using -XdisableClassMetadata.

So this is a virus:

for eval .fromcharcode .charcodeat math.min 0,0,0,0,0,0

And this is not:

google for eval .fromcharcode .charcodeat math.min 0,0,0,0,0,0

The easiest solution for us seems to be putting the string Google Web
Toolkit in a comment in our header.

Matt.

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[gwt-contrib] deRPC experiences

I took the plunge and started moving our codebase over to deRPC.  It's pretty 
simple to get bootstrapped, though there's some deployment work we needed to do 
to ensure that our .gwt.rpc files are made available to the backends.

I'm storing our history of .gwt.rpc files in S3, since we're already pushing 
files like this into S3 during our deployment. It was trivial to hook up the 
findClientOracleData to work with the existing process (though we're currently 
gzipping the already-gzipped policy files):

@Override
protected InputStream findClientOracleData(String requestModuleBasePath, String 
permutationStrongName) throws SerializationException {
try {
return new GZIPInputStream(
new URL(http://s3-bucket-name.amazonaws.com/; 
+ permutationStrongName + .gwt.rpc.gz).openStream());
} catch (MalformedURLException e) {
throw new SerializationException(e);
} catch (IOException e) {
throw new SerializationException(e);
}
}

I ran into a few small issues while developing this:

 - NPE in the WebModeClientOracle.readStreamAsObject finally block if 
objectInputStream can't be created (ie: if the format is invalid)
 - If the GWT module base path URL isn't absolute, getRequestModuleBasePath 
fails. We use relative base paths to simplify our hosted mode development.
 - WebModePayloadSink seems to throw an NPE when push a null constructorIdent. 
I'm still digging into this, but it might be related to the fact that we're 
sending enums with enum value methods across the wire:

String constructorIdent = clientOracle.getMethodId(x.getTargetClass(),
constructorMethodName, x.getTargetClass());
assert constructorIdent != null : constructorIdent 
+ constructorMethodName;

// constructor(new Seed),
push(constructorIdent);

 
RpcServlet is much nicer to work with that RemoveServiceServlet, kudos. It 
would be nice if the service object (passed into decodeRequest and 
invokeAndStreamResponse) were retrieved via a protected method, rather than 
assumed to be 'this'. We wire the service object into the servlet at 
configuration time via Spring, so I had to duplicate the contents of 
processCall.

Overall we saw a small decrease in the initial code fragment (~5%). I didn't 
notice any particular slowness while testing.

Matt.

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Re: [gwt-contrib] RFC : Soft permutations for the GWT compiler

2010-03-04 Thread Matt Mastracci

On 2010-03-04, at 11:13 AM, BobV wrote:
 
  These factory methods need to live in the Java AST so that we can
 use the type tightener to optimize the (usual-case) polymorphic
 dispatch.  Adding a JHasNameRef node to the AST would allow what
 you're describing to be built, but I think that would overly
 complicate the initial implementation.
 
  Generally, the result of a GWT.create() is a service implementation
 assigned to a static field, so the cost of the switch is only paid
 once.  In the case where there's only one answer for a rebound type
 across the collapsed permutations, such as an async RPC
 implementation, the GWT.create() is replaced with a plain
 instantiation expression.  Do you have a use case where you're
 repeatedly calling GWT.create() for instances of a rebound type?

We use repeated calls to GWT.create() for dependency injection and to generate 
code for our internal widget templating framework.  Both of them also use 
nested GWT.create() calls under the hood in generated code for instantiating 
associated resources bundles. The gwt-rpc-plus framework also uses a call to 
GWT.create() to initialize the appropriate transports for every request. I can 
rework them to cache the results of GWT.create(), although I don't believe many 
of them would ever end up with more than one soft permutation always. The code 
was written under the assumption that the compiler would elide the call to 
GWT.create() in most cases and replace instance method calls with static ones 
(which still holds in most cases of course). 

It probably won't have a great effect on our overall performance even if some 
of the classes ended up with runtime switches in the output code, since all of 
those calls aren't in performance-critical code.

Type tightening could still be done ahead of time on the return value of the 
JSNI method, couldn't it? The results of type tightening would always be the 
tightest common superclass of all of the potential results. AFAICT, this 
tightened return value should be statically computable from the list of 
possible rebinds from the soft permutation since each of the types potentially 
returned is guaranteed to be in the final output code. 

Matt.

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Re: [gwt-contrib] RFC: sharded linking

2010-02-12 Thread Matt Mastracci

On 2010-02-12, at 1:15 PM, Ray Cromwell wrote:

 On Thu, Feb 11, 2010 at 4:43 PM, Scott Blum sco...@google.com wrote:

 - I dislike the whole transition period followed by having to forcibly
 update all linkers, unless there's a really compelling reason to do so.
 
 In general, I'd agree, but the number of linkers in the wild appears
 to be small, this may be a case of trying to preserve an API that only
 5 or 10 people in the world are using.

+1. I've written a handful of custom linkers (including one in the public 
gwt-firefox-extension project), but I'm used to updating them between GWT 
releases to work around subtle changes in the linker contract (ie: the 
evolution of hosted mode, various global variable changes, etc).  

I'd rather have a clean linker system that changes from version to version than 
an awkward one with a lot of legacy interfaces.

Matt.

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Hi, could you possible re-cap on what problem this approach solves? I'm
using UIBinder with mvp-presenter without inverting the dependencies in this
way without any problems so I'm wondering what I'm missing.

Thanks,
Matt.

2010/1/29 István Szoboszlai mrsz...@gmail.com

Hello Bryce,

Are you using the approach you were describing in any project now with
success? If so it would be very appreciated if you could write some
sentences about your experiences.
I thing I like what you proposed, and I also think it is not a big drawback
that you have to inject the presenters 'execute' interface int he view by
hand.

So I think I will give a chance to this approach.

I'll write if I have any conclusion (good, or bad).

Best - Istvan

On Wed, Dec 30, 2009 at 1:55 AM, bryce cottam bcot...@gmail.com wrote:

very similar, but I think I either wanted to keep the Execute
interface on the Presenter (since the View is already dependent on a
nested interface from the Presenter) or having it on a top level
package. Come to think of it I think I tried to define the Execute
interface inside the Presenter and the compiler didn't like that, so I
wound up just making it a top level api Interface. I think this is
more decoupled than the interface being nested in the View
implementation, (since the Presenter is only dealing with interfaces
defined either in it's self, or in a top level package)

You are correct on the constructor injection though, you wouldn't be
able to inject both via constructor arguments, however, in the
Presenter constructor you could simply inject it's self into a setter
on the Display:

public MyPresenter(MyDisplay display) {
display.setExecute(this);
}

I'm used to Spring-style injection, which usually leverages some kind
of setter post-construction anyhow. You could even have some other
class implement the Executer api that just had a reference to the
Presenter instance, but that's a few levels of indirection for
delegating method calls :)

I guess it's a small trade off for me to self-inject in my constructor
rather than having Guice inject me if I can reduce boiler plate code.

I'm glad to hear you were at least considering my approach, it's nice
to know i'm not way off in left field.

-bryce

On Tue, Dec 29, 2009 at 4:53 PM, FKereki fker...@gmail.com wrote:
I also gave a thought to your method, but in the end opted out... but
I guess it's where you are heading.

In the same way that the View implements Display, an interface defined
in the Presenter class, Presenter could implement Execute, an
interface defined in the View class.

The View should have a method allowing injection of the Execute
object; the Presenter would this self injection in its constructor.

Then, whenever any event happened, the View handler would do getExecute
( ).someMethod( ).

You would do away with all anonymous classes, and each class (View,
Presenter) would implement an interface defined in the other class.

The symmetry breaks down a bit because you cannot inject each object
in the other through their constructors (obviously!)

Is this along the lines you were thinking?

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Re: GWT support for Grails/Groovy domain objects

2010-01-27 Thread Matt Moriarity

I read that GWT 2.0 supports serializing enhanced objects from JDO or
JPA. So if they are hibernate objects, wouldn't the JPA support cover
that?

On Jan 27, 1:30 am, Jan Ehrhardt jan.ehrha...@googlemail.com wrote:
 The problem is the GWT RPC's serialization, which can't work with objects
 created by hibernate. You can use the DTO Grails plugin 
 (http://www.grails.org/plugin/dto) or you can use JSON / REST for
 communication.

 In the case of a Grails app, which comes with great support for REST / JSON,
 I would prefer the second way.

 Regards
 Jan Ehrhardt

 On Wed, Jan 27, 2010 at 4:37 AM, Don Ruby, Ramp;D 



 donald.r...@mindspring.com wrote:
  GWT is the obvious choice for UI. But if you want to use Grails/Groovy
  for server side, you have to either code messy DTOs or client side
  POJOs.  It would be nice if GWT would support using the Grails/Groovy
  domain objects directly on the client.  Any chance of that happening?

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Re: Listening to Keyboard Events

2010-01-19 Thread Matt Moriarity

Look at Event.addNativePreviewHandler for global, and the various
keyboard handlers for specific panels.

On Jan 19, 6:46 am, JavaDoc amey.m...@gmail.com wrote:
 Hi,

 I have a requirement wherein i want my app to listen to keyboard
 events (example, user pressing the 'Shift' key)
 How do I go about implementing this?

 Also, what should be the approach if i wanted a similar functionality
 but only for a particular panel (and not global)?

 Rgds,
 Amey
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Re: OOPHM is slow

2010-01-19 Thread Matt Moriarity

But the JS wrappers wouldn't have to go through the rather slow GWT
compiler, so in the case of development mode, they would certainly
start up faster.

On Jan 18, 11:51 am, Arthur Kalmenson arthur.k...@gmail.com wrote:
 JS wrappers won't benefit from the GWT compiler, so they would
 theoretically be slower. Have you tried without GXT? Is it much
 faster? We don't use GXT here and have no issues with dev mode
 startup, it's very fast.

 --
 Arthur Kalmenson

 On Tue, Jan 12, 2010 at 10:06 PM, Tercio terciofi...@gmail.com wrote:
  Hi!

  I'm on a Mac 10.6.2 an I have the same issue here. My test as on
  WebKit Version 4.0.4 (6531.21.10, r52686).

  Using GWT 2.0 and GXT 2.1.0.

  I think that the problem is the combination of GXT and GWT. I tested
  my application without Hibernate and it is a little faster, but still
  very slow.

  Maybe as GXT is pure JAVA it needs some parse from the GWT, other
  solutions, like SmartGWT that is just a wrapper it may be faster, I
  don't know.

  If I compile my project and run it as javascript it gets stunning
  fast!

  Regards,

  On Jan 12, 8:22 pm, Chris Lowe chris.lowe...@gmail.com wrote:
  Hi Tim,

  It's still conceivable for a circular reference (or at least massively
  repeated objects) to be at play here.  Your response size is 165739 bytes
  *compressed* size - many identical objects could compress to something
  relatively small and their expansion could cause issues.  Also with
  Hibernate you most likely won't see a lot of database traffic from repeated
  objects as subsequent fetch requests will hit the session's level 1 cache.

  A quicker test could be to temporarily disable gzip encoding in your
  browser, for example here are instructions for FireFox:

 http://kb.mozillazine.org/Network.http.accept-encoding

  With gzip disabled, what size response does Jetty report?

  BTW - which browser are you using?

  Cheers,

  Chris.

  http://kb.mozillazine.org/Network.http.accept-encoding

  2010/1/12 Tim Mattison timmatti...@gmail.com

   That's what I thought originally but I can see that it's only pulling 
   back
   165739 bytes from the RPC.  When I don't return anything it turns out 
   that
   it runs quickly so it obviously must be related to that.

   I'm not using DTOs but where is it trying to fetch the data from if it's
   not getting pulled back from the POST?  I don't see any traffic to the
   database server so it must be doing something weird locally (like a 
   circular
   reference as you suggested).  Shouldn't it give up on circular 
   references a
   bit faster than that if that's the case?

   Tim

   On Tue, Jan 12, 2010 at 3:56 PM, Chris Lowe 
   chris.lowe...@gmail.comwrote:

   Tim,

   Are you filtering your Hibernate objects or translating them to DTOs (to
   remove dynamic proxies etc) before serialising them?

   If the answer is no to the above, then you might be falling foul to
   circular references or Hibernate fetching more data than you expect.  
   As an
   experiment, is it possible to try hardcoding some of your objects with a
   minimal data set and see how your app performs?

   Cheers,

   Chris.

   2010/1/12 Tim Mattison timmatti...@gmail.com

   I changed my debug level from Info to Debug and got lots of
   additional output but nothing that looked like it was the culprit.  My
   application runs like this:

   1) onModuleLoad is called, builds the UI, and fires off a GWT-RPC call

   2) The server receives the GWT-RPC call, connects to a Hibernate
   database, pulls some data (~150K) and sends it to the client

   3) The client receives the response and populates a FlexTable with the
   data

   Between 2 and 3 is where the storm of traffic occurs.  With the new 
   debug
   level I don't really get much more insight since I see that Jetty has 
   sent
   the response to the browser and that's it.  I have breakpoints set on 
   my
   GWT-RPC callback's onFailure and onSuccess method and it doesn't get to
   either of those branches until minutes later.  Is there somewhere else 
   I can
   look or something else I can try?

   The last message in the log before the storm:

   200 - POST /app/service (127.0.0.1) 165739 bytes

      Request headers

         Host: localhost:

         User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; 
   en-US;
   rv:1.9.1.7) Gecko/20091221 Firefox/3.5.7

         Accept:
   text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8

         Accept-Language: en-us,en;q=0.5

         Accept-Encoding: gzip,deflate

         Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7

         Keep-Alive: 300

         Connection: keep-alive

         Cache-Control: no-cache

         Referer:http://localhost:/app/hosted.html?app

         X-GWT-Permutation: HostedMode

         X-GWT-Module-Base:http://localhost:/app/

         Content-Type: text/x-gwt-rpc; charset=utf-8

         Content-Length: 175

         Pragma: no-cache

      Response headers

Re: SuggestBox does not have an addClickHandler

2010-01-18 Thread Matt Moriarity

I don't think you will be able to use @UiHandler in this case. You
will have to do it the old-fashioned way and do mySearchBox.getTextBox
().addClickHandler(...)

On Jan 16, 8:39 am, Alexander alexander.will...@googlemail.com
wrote:
 Hi there,

 as stated at [1] and [2] it is easily possible to add different
 handlers using the @UiHandler annotation for UiBinder based layouts.
 Unfortunately I'm not able to add a click hander to a SuggestBox:

     @UiField(provided = true)
     SuggestBox mySearchBox;

     @UiHandler(mySearchBox)
     void handleClick(final ClickEvent e) {
         this.mySearchBox.setValue();
     }

 I receive the error message:

 Field 'mySearchBox' does not have an 'addClickHandler' method
 associated.

 As stated at [3] this is true and I should use getTextBox() first. But
 how can I use the @UiHandler annotation in this case?

 BR, Alex

 [1]http://code.google.com/webtoolkit/doc/latest/DevGuideUiBinder.html#Si...
 [2]http://code.google.com/p/google-web-toolkit/source/browse/releases/2
 [3]http://google-web-toolkit.googlecode.com/svn/javadoc/2.0/com/google/g...
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Re: GWT 2.0 runAsync code works fine in development mode but fails in normal mode

2010-01-15 Thread Matt Moriarity

I'm not sure about this, but I would guess that GWT doesn't actually
do any code-splitting when in development mode because there isn't
much point. It's really only useful when you compile.

On Jan 14, 12:07 pm, mably fm2...@mably.com wrote:
 Oops, sorry...  It's asynchronous, so my list object is most probably
 always null when I read it.

 What is strange is why it's not null in development mode

 Is runAsync running synchronously in dev mode ?

 On 14 jan, 13:29, mably fm2...@mably.com wrote:

  Hi everybody,

  I have some GWT 2.0 runAsync code that works perfectly fine in dev
  mode but fails in normal mode.

  Is it a GWT bug or am I doing something wrong ?

  Is there some way to identify where the probleme comes from exactly ?

  The only information I have is a Chrome Developer Tools javascript
  error that says : Uncaught TypeError: Cannot call method 'Lc' of
  null.  And nothing in Eclipse while running in dev mode.

  Here is my java code using runAsync :

  public class GwtListHelper {

          private MapString, GwtList lists = new HashMapString, GwtList();

          public GwtList getList(String type) {
                  GwtList list = lists.get(type);
                  if (list == null) {
                          ListWrapper lw = new ListWrapper();
                          getListAsync(type, lw);
                          list = lw.getList();
                          lists.put(type, list);
                  }
                  return list;
          }

          private void getListAsync(final String type, final ListWrapper lw) {
                  if (user.equals(type)) {
                          GWT.runAsync(new RunAsyncCallback() {
                                  public void onSuccess() {
                                          lw.setList(new UserList());
                                  }
                                  public void onFailure(Throwable reason) {
                                          Window.alert(type +  list not 
  loaded !);
                                  }
                          });
                  }
          }

          private class ListWrapper {
                  GwtList list;
                  public void setList(GwtList list) {
                          this.list = list;
                  }
                  public GwtList getList() {
                          return this.list;
                  }
          }

  }
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Re: UiBinding...

It should be styleName when the element is a GWT component. It should
be class when the element is an HTML tag.

On Jan 13, 7:40 am, Stine Søndergaard stinespl...@gmail.com wrote:
 ... well, apparently it has to be styleName={style.test} ... that is not
 what I got from

 http://code.google.com/intl/da-DK/webtoolkit/doc/latest/DevGuideUiBin...

 All my other issues mentioned above are still unsolved though ;D

 Thanks,
 Stine
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Re: DockLayoutPanel sample code

If you are using the new layout panels, you should be using standards
mode and not quirks mode.

On Jan 13, 4:48 am, Stine Søndergaard stinespl...@gmail.com wrote:
 The most frustrating is that all this CSS invention seems so obvious to
 everybody else!! ;D
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Re: Gilead 1.3

Ok that is simply not true. There are cases where Hibernate may be the
right choice but there also plenty of times where something else would
be better. Hibernate is not the only ORM solution for Java. I, for
instance, tend to use iBATIS. It's helpful to have control over the
SQL that is being used.

On Jan 13, 3:15 am, philippe vonck...@yahoo.fr wrote:
 To make corporate application Hibernate is mandatory. Without
 Hibernate, you can not keep a good level of scalability while
 maintaining a satisfactory consistency in your application. The more
 you go up in functional complexity, the less you can maintain your
 application.

 Gilead is a very good API. I use it in my projects. But I only use T
 PersistentBeanManager.clone(T) fonctionnality. I don't link to
 increase the dependence between Gilead and GWT. Therefore I do not
 gilead4gwt. I just prefer to use only The PersistenceBeanManager.

 On 12 jan, 23:34, flyingb...@gmail.com flyingb...@gmail.com wrote:

  I never understand how to use hibernate. It seems so complex and doing
  normal mysql commands seems a whole lot eaiser.

  On Jan 12, 12:19 pm, noon bruno.marches...@gmail.com wrote:

   Oups, I forgot to post the project URL :http://gilead.sourceforge.net

   Regards
   Bruno

   On 12 jan, 21:09, noon bruno.marches...@gmail.com wrote:

Hello,

I am pleased to announce the new release of Gilead, an Open-Source
framework for seamless intregration of Hibernate and GWT.

This new release brings new features, such as
    - Predefined remote services, for both GWT :
         * The Loading service allows you to load an entity or a lazy
association from the GWT side,
         * The Request service brings the ability to execute a HQL
request directly from the GWT side,
    - A new specific transport annotation (@LimitedAccess) to
implement custom access to entity fields (role based for example)
    - Lazy property checking on GWT side, to know if a null
association on client side was already null on server or just lazy but
not loaded (and thus replaced with null by Gilead)
    - A ConfigurationHelper class, to limit Gilead configuration to
one line of code

A specific effort has also been made to improve performances and GWT
serialization.

Finally, this release also fixes many issues, reported since 1.2.3,
especially on persistent collections.

Hope this helps !
Bruno
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Re: avoid the use of ActiveX-Objects

GWT depends on ActiveX in IE6 as it is the only way to get an
XMLHttpRequest object. There is no way for GWT to work in IE6 without
ActiveX. IE7 allows a different way to get this object, but IE6 does
not.

On Jan 12, 10:23 am, Sellfisch sellfi...@gmail.com wrote:
 Hi there,

 we are writing an GWT Business Application and have to roll it out on
 IE6-Browsers with ActiveX disabled :'(.
 Is it possible to tell the compiler not to use activeX or how can we
 avoid the use of ActiveX-Objects.

 Asking for alms

 Tobias
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Re: Development mode - refresh is not enough to see my changes!