date:20110201

Re: Developer Guide on writing with GWT a reusable javascript widget

2011-02-01 Thread Thomas Lefort

@Chris, many thanks for the link. I had managed with the Vizu example
and I learned a couple of things along the way. I also thought about
writing some Generators to automate it, no need anymore! It looks
great.

@Eric, OK I understand better now. However I don't want to create a
GMap2 object, what I need is to pass the GMap2 object to my GWT
widget. Not sure how to do that.

Cheers

Thomas


On Feb 1, 10:36 pm, Eric Ayers  wrote:
> A gwt-google-apis MapWidget object is not a javascript GMap2 object.
> A MapWidget is a GWT Widget and contains a GMap2 object inside of it,
> so you need to use the MapWidget constructor to create it.
>
>
>
>
>
>
>
>
>
> On Tue, Feb 1, 2011 at 2:10 PM, Thomas Lefort  wrote:
> > Me again, there doesn't seem to be much interest in generating
> > reusable javascript widgets with GWT. If there is let me know, I'll
> > try to write something about my (painful) experience on this subject.
> > Anyway, I am now stuck on passing a Map argument to my widget. I use
> > MapWidget in GWT and the Maps API v2 in the javascript part. I get a
> > Class cast exception. I am unsure whether or not MapWidget is the
> > right class to use.
> > The function specific JSNI:
>
> >  private static native void registerPlayMapFunctions(JavaScriptObject
> > jso) /*-{
> >                jso.play = function(map) {
> >                  return
> > this.gwt_widg...@com.metaaps.webapps.gwt.playmap.client.PlayMap::play(Lcom/
> > google/gwt/maps/client/MapWidget;)(map);
> >                }
> >  }-*/;
> > The javascript:
> >        var map = new GMap2(document.getElementById("map_canvas"));
> >        var playMap = new PlayMap();
> >        playMap.play(map);
>
> > Any help would be highly appreciated.
>
> > Thanks,
>
> > Thomas
>
> > On Feb 1, 1:26 pm, Thomas Lefort  wrote:
> >>http://code.google.com/p/gwt-google-apis/wiki/VisualizationCustomVisu...,
> >> gives some insight BTW but you still have to check the code source
> >> above. And then it looks like the html page will load in two stages in
> >> any case, with the bootstrap. Might not be very optimum for small
> >> widgets... I am already on 5k + 90k for a small widget that would
> >> require just 5k in js. There has to be some optimisation left to be
> >> done ;-)
>
> >> On Feb 1, 11:04 am, Thomas Lefort  wrote:
>
> >> > Looks like this is a pointer to start with:
>
> >> >http://code.google.com/p/gwt-google-apis/source/browse/trunk/visualiz...
>
> >> > No doc/guide found so far.
>
> >> > On Jan 31, 1:12 pm, Thomas Lefort  wrote:
>
> >> > > I want to write a widget with GWT that can be reused by a javascript
> >> > > program (in its compiled form). Is there any guide on how to proceed,
> >> > > eg which classes and methods will be exposed to the user?
>
> >> > > Thanks,
>
> >> > > Thomas
>
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> Google Web Toolkit, Atlanta, GA USA

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Re: Can CellWidgets contain custom composite widgets ?

2011-02-01 Thread zixzigma

I realized what I was doing wrong.

I was trying to do everything in the custom cell.
I decided to handle things at CelLTable level, instead of cell level.
so I defined a SingleSelectionModel, and when the row is selected,
I change the flag within this selectionModel, which is related to the 
CellTable,
instead of capturing low level click event in the cell.

still I need to work on some of its details, 
since there are some minor problems.

Thank you for your insights, it helped a lot.

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Re: CellTable and GAE Datastore cursors

2011-02-01 Thread Miroslav Genov

I think that they are not suitable each other, due the lack of rewind of 
datastore cursors, i.e you can seek to the next offset but you are not 
allowed to move back. To do that you have to make some kind of hack that 
keeps all previous cursor positions. For more information about paging you 
can take a look at 
http://sites.google.com/site/io/building-scalable-web-applications-with-google-app-engine
 (Slide 
33-34). 

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Re: Can CellWidgets contain custom composite widgets ?

2011-02-01 Thread zixzigma

Thank You,
I tried your suggestion.

In the onBrowseEvent, I capture the click event, 
but just capturing event does not result in re-rendering the table.

I assume I need to somehow update the table for the re-rendering to happen,
but I don't know how 
">> If your click event, updates the table in some fashion that leads to 
re-rendering of the table"


I also put a flag(conditional) inside onBrowseEvent method, and changed it 
upon click event,
and directly called render from within onBrowseEvent (as you can see below).
to somehow force the render method.
with this explicit call to render, upon on click, the flag is set and log 
statements in render method
confirm that the flag is actually set, but the table remains the same.
in other words the table is not re-rendered.

do you know how I can make the click event to update the table ?
or how is it possible to re-render just a row of the table ?
is it wrong to call render from within onBrowseEvent ?
 public void onBrowserEvent(.

if ("click".equals(event.getType())) {

isFieldXVisible = true; // setting a flag so that render method can check 
for it
render(context,value,null); // forcing to re-rerender, does not seem to work 


}

}

Thank You

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Re: Can CellWidgets contain custom composite widgets ?

2011-02-01 Thread Prashant Hegde

>From what I know (hope others can comment/correct):

You get influence rendering in the "render" method of a cell. If your click
event, updates the table in some fashion that leads to re-rendering of the
table then you should get the control to render method of the cell. Based on
a conditional logic inside the render method, should be able to plug in a
different widget HTML in the same cell area ( should work, never tried ).

Prashant

On Wed, Feb 2, 2011 at 11:54 AM, zixzigma  wrote:

> THANK YOU!
> it worked !!
> what a wonderful solution !
>
> one other question,
> in your experience,
> - do you think it is possible to change a cell once it's rendered ?
> for example, implement onClick event, in a way that upon a click,
> another widget is added to the currently displayed row.
>
> I am trying to implement something similar to this:
>
> http://code.google.com/p/google-web-toolkit/updates/list
>
> which is basically a celltable, when you click on a row,
> the row expands.
>
> I am not asking for the solution, although any tips are really appreciated,
> I want to know if it is possible with CellTable.
>
> Thank you for the solution you offered.
>
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Re: Can CellWidgets contain custom composite widgets ?

2011-02-01 Thread zixzigma

THANK YOU!
it worked !!
what a wonderful solution !

one other question,
in your experience,
- do you think it is possible to change a cell once it's rendered ?
for example, implement onClick event, in a way that upon a click,
another widget is added to the currently displayed row.

I am trying to implement something similar to this:
http://code.google.com/p/google-web-toolkit/updates/list

which is basically a celltable, when you click on a row,
the row expands.

I am not asking for the solution, although any tips are really appreciated,
I want to know if it is possible with CellTable.

Thank you for the solution you offered.

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Re: Can CellWidgets contain custom composite widgets ?

2011-02-01 Thread Prashant Hegde

Sorry, I should have been more clearer. Its not getHTML as I had stated.
Should have said getInnerHtml(). Your custom widget need not implement
HasHTML. Instead, its basically a standard UiBinder based composite with
public methods to set the required  data to be rendered ( not the markup
just the data like any other setters/getters of a view ). Your markup is
inside the UIBinder XML. Once you set the data, you can call
getElement().getInnerHTML() on the composite to get the HTML equivalent of
the composite.

One more improvement (more lightweight I guess) over the above approach is,
You need not extend the UiBinder widget from Composite. You can just have a
reference to a Widget inside the UiBinder Java file. Initialize this
reference to the  object returned from createAndBindUi. In this case, you
will have to call widget.getElement().getInnerHtml() for the HTML
equivalent.

Hope this helps.

Prashant

On Wed, Feb 2, 2011 at 10:20 AM, zixzigma  wrote:

> Thank You.
>
> Prashant, I am following your suggestion,
> I am a bit unclear about this part of your comment: "set the data and
> getHTML"
>
> should my custom widget implement HasHTML ?
>
> http://google-web-toolkit.googlecode.com/svn/javadoc/1.5/com/google/gwt/user/client/ui/HasHTML.html
>
> could you please explain that part a bit more ?
> I see that HasHTML has methods setHTML getText that I need to implement.
> do you think I need to put html markup in this setHTML ?
>
> Thank You
>
>
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Re: Can CellWidgets contain custom composite widgets ?

2011-02-01 Thread zixzigma

Thank You.

Prashant, I am following your suggestion,
I am a bit unclear about this part of your comment: "set the data and 
getHTML"

should my custom widget implement HasHTML ?
http://google-web-toolkit.googlecode.com/svn/javadoc/1.5/com/google/gwt/user/client/ui/HasHTML.html

could you please explain that part a bit more ?
I see that HasHTML has methods setHTML getText that I need to implement.
do you think I need to put html markup in this setHTML ?

Thank You


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Re: avoid row selection on cell click in CellTable

2011-02-01 Thread Torgeir

Thx, I also just found that simply having my Cells implementing the 
handlesSelection method fixes it;

@Override public boolean handlesSelection() { return true; }

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Re: Bug: CompositeCell containing EditTextCell

2011-02-01 Thread Jason

Yes, the offending code lies in line 430 of
DefaultSelectionEventManager. It tries to toggle the cell selection
when you push the space key. CellList extends AbstractHasData which in
turn uses the DefaultSelectionEventManager.

The behaviour seems even stranger if you don't have a SelectionModel
set for your CellList. If you set one (you can use 'new
SingleSelectionModel' on your CellList object, where T is your
model class) and you will see that the space key event toggles the row
selection..

I'm not sure if there is a bug report for this yet? We will need to
wait for it to be fixed / explained but until then I developed this
little hack :) Paste it anywhere.. it's static. Tested on Chrome and
FF4 but probably won't work on some older browsers.

Event.addNativePreviewHandler(new NativePreviewHandler() {

@Override
public void onPreviewNativeEvent(NativePreviewEvent 
event) {
NativeEvent nativeEvent = 
event.getNativeEvent();
final int keyCode = nativeEvent.getKeyCode();

final boolean isNotAnInputElement = 
!InputElement

.is(nativeEvent.getEventTarget());
final boolean isNotTheSpaceKey = keyCode != 32;

if (isNotAnInputElement || isNotTheSpaceKey) {
return;
}
String type = nativeEvent.getType();
event.cancel();
if (("keyup".equals(type))) {
InputElement element = 
nativeEvent.getEventTarget().cast();
final int start = 
element.getPropertyInt("selectionStart");
final int end = 
element.getPropertyInt("selectionEnd");
if (start == end) {
String before = 
element.getValue();
String after = 
before.substring(0, start) + " "
+ 
before.substring(start);
element.setValue(after);

element.setPropertyInt("selectionStart", start + 1);

element.setPropertyInt("selectionEnd", start + 1);
}

}
}
});


On Jan 24, 11:06 am, Bernd  wrote:
> Please try the following: Put an EditTextCell into a CompositeCell and
> add the CompositeCell to a CellTable Column. Now enter the
> EditTextCells edit mode to change the text and try to add a space-char
> by pressing your space key. Unfortunately, this doesn't work for me
> (Firefox 3.5).
> I checked the events which are forwarded by the Browser to the
> CompositeCell. Interestingly, there is no "downkey" event delivered
> for the space key. Maybe this has something to do with it?
>
> Here is the sample code i used to generate the CellTable Column:
>
>                final EditTextCell editTexCell = new EditTextCell();
>
>                HasCell hasC = new HasCell String>() {
>
>                         @Override
>                         public Cell getCell() {
>                                 return editTexCell;
>                         }
>
>                         @Override
>                         public FieldUpdater getFieldUpdater() 
> {
>                                 return null;
>                         }
>
>                         @Override
>                         public String getValue(String object) {
>                                 return object;
>                         }
>
>                 };
>
>                 List> listHC = new 
> ArrayList>();
>
>                 listHC.add(hasC);
>                 CompositeCell compCell = new CompositeCell(listHC);
>
>                 Column compCellColumn = new 
> Column String>(compCell) {
>                         @Override
>                         public String getValue(RowOfData object) {
>                                 return "test123";
>                         }
>                 };
>
> Is there a way to fix this problem?
> A positive answer would help me a lot :)
> Thanks!
> Bernd

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Re: Can CellWidgets contain custom composite widgets ?

2011-02-01 Thread Prashant Hegde

We have extended the AbstractCell and did the following.

Have a widget created using UiBinder XML for the content of a cell. In the
render method,  instantiate the widget, set the data and getHTML. Once you
get HTML, it is business as usual. You can also respond to the events inside
the widget by overriding onBrowserEvent. We only had anchors inside the
widget, so we listened to "click" events and responded it to it by
delegating the event to presenters. This approach eliminated having to write
HTML mark up in Java code.

Not sure if this is the answer you are looking for.

Prashant

On Wed, Feb 2, 2011 at 4:10 AM, zixzigma  wrote:

> after investigating CompositeCell or directly extending AbstractCell,
> it is my understanding that to create custom cell,
> the only option at the moment is to embed HTML markup in the render method
> as below.
>
> in other words, we cannot create a custom composite widget with UiBinder,
> and add it to the cell.
>
> am I correct on this ?
>
>
>
> @Override
> public void render(Context context, Contact value, SafeHtmlBuilder sb)
> {
>   /*
>* Always do a null check on the value. Cell widgets can pass null to
>* cells if the underlying data contains a null, or if the data
> arrives
>* out of order.
>*/
>   if (value == null) {
> return;
>   }
>
>   // Add a checkbox. If the contact is a favorite, the box will be
> checked.
>   sb.appendHtmlConstant("");
>   if (favorites.contains(value)) {
> sb.appendHtmlConstant(" checked=checked/>");
>   } else {
> sb.appendHtmlConstant("");
>   }
>   sb.appendHtmlConstant("");
>
>   // Display the name in big letters.
>   sb.appendHtmlConstant("");
>   sb.appendEscaped(value.name);
>   sb.appendHtmlConstant("");
>
>   // Display the address in normal text.
>   sb.appendHtmlConstant("");
>   sb.appendEscaped(value.address);
>   sb.appendHtmlConstant("");
>
>   sb.appendHtmlConstant("");
>
> }
>
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Help on using JSNI from within a GWTTestCase

2011-02-01 Thread Christopher

Hi there,

I'm trying to use JSNI from within a GWTTestCase. The JavaScript object is 
returned via a JSON response from a servlet I have running for the test. I 
then eval the JSON and assert the corresponding overlay object's value. 
Firstly, does this sound like a reasonable thing to do from within 
GWTTestCase?

Here's my relevant bits of code. I have declared a parameterised class to 
handle JSON payloads with the parameter representing the type of 
JavaScriptObject I want to evaluate to:

public abstract class JSONRequestCallback

implements RequestCallback {


  private final native T evalJSON(String jsonText) /*-{

return eval(jsonText);

  }-*/;


  @Override

  public void onResponseReceived(Request request, Response response) {

String responseText = response.getText();

onResponseReceived(request, evalJSON(responseText));

  }


  /**

   * Handle a JSON payload response.

   * 

   * @param request

   *the original request object.

   * @param response

   *the JSON response marshalled as a JavaScript object.

   */

  public abstract void onResponseReceived(Request request, T response);


}

To call it I issue an HTTP request with the callback provided like this in 
my test:

new JSONRequestCallback>() {

  @Override

  public void onError(Request request, Throwable exception) {

fail("Should not get here.");

  }


  @Override

  public void onResponseReceived(Request request,

  JsArray deals) {

// TODO Validate the response.


assertEquals(1, deals.length());


SomeModelObject bo = deals.get(0);

assertEquals("A", bo.getAccountProductType());


finishTest();

  }

});

SomeBusinessObject is an overlay class with getAccountProductType declared 
as follows:

  public final native String getAccountProductType() /*-{

return this.accountProductType;

  }-*/;

Unfortunately for me, the second assertion (for "A") fails. The servlet 
definitely responds correctly and I can see via the debugger that eval is 
being performed on the JSON response.

Any guidance is most appreciated.

Kind regards,
Christopher

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RequestFactory with EJB Beans, how??

2011-02-01 Thread Bálint Kriván

Hi!

Did anybody tried to use RequestFactory with EJB Beans using
Locator/ServiceLocator?

I'm having a little issue here.

My stateless session bean extends Locator. For my
RequestContext I use a ServiceLocator which uses InitialContext.doLookup();
to lookup the EJB (I can't use @EJB because the ServiceLocator instance
isn't container-managed -- btw. is there any solution for this? lookup looks
ugly). Everything looks fine, but in my Bean, the entityManager instance is
null (I'm using @PersistenceContext annotation on it) when GWT wants to
invoke find(Class, Long) method: here I use simple em.find(). It's
strange because invoking from a servlet, using @EJB, it works fine. What am
I doing wrong?

I've created a gist for it: https://gist.github.com/807082

So in this file: https://gist.github.com/807082#file_group_manager.java Line
#29, the em is null, but using this servlet:
https://gist.github.com/807082#file_test_servlet.java it works perfectly.

Has anybody experience with this problem? I would like to use EJBs, because
I would like to have JTA and Container-managed transactions. Thanks for any
advice!

-- 
Regards,
Bálint Kriván

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RequestFactory EntityProxy and AutoBean category

2011-02-01 Thread Krishna

Hi,

Does RequestFactory EntityProxy supports AutoBean category (http://
code.google.com/p/google-web-toolkit/wiki/AutoBean#Categories) ?
i. e. Can I define a category for an EnitityProxy? If yes, how can I
do that?

Thanks!
Krishna Caldas

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Re: any Tips on fine-tuning Packet Analyzers for GWT client-server communication ?

2011-02-01 Thread Chris Conroy

http://code.google.com/p/google-web-toolkit/source/browse/#svn%2Ftrunk%2Fplugins%2Fwireshark

On Tue, Feb 1, 2011 at 3:33 PM, zixzigma  wrote:

> I was thinking of using a Packet Analyzer like Wireshark, to monitor what
> is being sent over the wire from client to server and back
> when using GWT in development mode.
>
> However I am getting all kinds of low level bits and have not been
> successful in applying some kind of filters,
> to display only GWT related meaningful data. I activate "follow TCP
> Stream", but still its not easy to follow.
>
> Do you have any tips on fine-tuning Packet-Analyzers for use with GWT
> client-server communication mechanisms ?
>
> Thank You
>
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Re: Can CellWidgets contain custom composite widgets ?

2011-02-01 Thread Thomas Broyer



On Tuesday, February 1, 2011 11:40:27 PM UTC+1, zixzigma wrote:
>
> after investigating CompositeCell or directly extending AbstractCell,
> it is my understanding that to create custom cell,
> the only option at the moment is to embed HTML markup in the render method 
> as below.
>
> in other words, we cannot create a custom composite widget with UiBinder,
> and add it to the cell.
>
> am I correct on this ?
>

Yes, Cell widgets are much more low-level than widget containers. They're 
built with performance in mind, and it rules out using child widgets. 

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Re: Are servlets available when performing GWT Unit Tests?

2011-02-01 Thread Christopher Hunt

Ah ha - thanks for that. All good now. I'll raise a ticket so that the doco can 
be updated.

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Re: 2 Modules in 1 GWT-App, both starting the onModuleLoad?

2011-02-01 Thread Colin Alworth

> [ERROR] Hint: Previous compiler errors may have made this 
type unavailable 
Which type? Which error? If you are missing code in your Child1/2 projects 
that disappears only when the Parent module is missing, something is not set 
up correctly, or perhaps you are still attempting to compile the new-deleted 
module?

If a module with an entry-point inherits another module with another 
entry-point, the finished product will run both entry-points. That is what 
your original post seemed to indicate, though I still don't see how. This 
compiler error seems to suggest that there is some other mixed up 
dependency.

-Colin

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Re: any Tips on fine-tuning Packet Analyzers for GWT client-server communication ?

2011-02-01 Thread Thomas Broyer

Er, limit to the port your server listens on ( by default for the 
DevMode, 80 as the default for HTTP) and use an HTTP dissector? (requires 
specific configuration if not on port 80: 
http://www.wireshark.org/docs/wsug_html_chunked/ChCustProtocolDissectionSection.html#ChAdvDecodeAsFig
 )

I haven't used Wireshark a whole lot, but that was enough for me. I never 
used the "follow TCP stream" so I can't tell.

That being said, Firebug and similar tools, or Fiddler2 (Windows only) have 
always worked well for me (bonus point for Fiddler2 which can also work if 
your server requires HTTPS)

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Re: 2 Modules in 1 GWT-App, both starting the onModuleLoad?

2011-02-01 Thread newnoise

I get this error-message trying to compile after deleting the
Parent.gwt.xml:
   [ERROR] Hint: Previous compiler errors may have made this type
unavailable
 [ERROR] Hint: Check the inheritance chain from your module;
it may not be inheriting a required module or a module may not be
adding its source path entries properly

Thanks!



On 2 Feb., 00:18, newnoise  wrote:
> Ok. But don't I need some module like parent? If I delete parent I
> can't compile the project no more.
> Both .html-files point to the right .nocache.js files! I doublechecked
> it several times :)
>
> Thanks
> noise
>
> On 1 Feb., 23:24, Colin Alworth  wrote:
>
> > From the little information here, it seems that either Child2.html has a
> > script tag loading Child1.nocache.js or Parent.nocache.js
>
> > Parent serves no purpose in your setup - if it were compiled and run, it
> > would try to start both applications at once.

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Re: 2 Modules in 1 GWT-App, both starting the onModuleLoad?

2011-02-01 Thread newnoise

Ok. But don't I need some module like parent? If I delete parent I
can't compile the project no more.
Both .html-files point to the right .nocache.js files! I doublechecked
it several times :)

Thanks
noise

On 1 Feb., 23:24, Colin Alworth  wrote:
> From the little information here, it seems that either Child2.html has a
> script tag loading Child1.nocache.js or Parent.nocache.js
>
> Parent serves no purpose in your setup - if it were compiled and run, it
> would try to start both applications at once.

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Re: TextBox width percentage in Standards Mode

2011-02-01 Thread Craig Mitchell

Sorry, I should have been more clear.  100% of its parent.  In my
case, a table.  Eg:




Title







First name







Without the res.css.textBoxPadding (which puts padding-right:8px;),
the firstNameTextBox will be 8px wider then the titleListBox.

Cheers.


On Feb 1, 9:42 pm, Jeff Schwartz  wrote:
> 100% of what? Your problem has nothing to do with doctypes. If there is no
> immediate parent with a specific width set then there is nothing to
> constrain the width of the text box.
>
>
>
>
>
>
>
>
>
> On Mon, Jan 31, 2011 at 10:55 PM, Craig Mitchell  wrote:
> > Hi,
>
> > If I set a TextBox width percentage (say 100%) in standards mode (Ie:
> > ), the total width will be larger then 100% due to the
> > TextBox's padding, and border.
>
> > I can get the width back to 100% by removing them with css like this:
> > .noPadding {
> >        padding: 0px;
> >        margin: 0px;
> >        border: 0px;
> >        background-color: #ee;
> > }
>
> > However, I want the padding and border around the TextBox.
>
> > How can I set a percentage width on a TextBox, and get it to actually
> > go to that width?
>
> > The reason I would like to do this, is so it works like ListBox, which
> > doesn't seem to have any padding or border.
>
> > Thanks.
>
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>
> --
> *Jeff Schwartz*

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Re: Are servlets available when performing GWT Unit Tests?

2011-02-01 Thread Thomas Broyer

You can use servlets, but your web.xml isn't read, you have to declare them 
in your gwt.xml using a  element ("the old way"). You'll 
generally create a specific gwt.xml that  the module you want to 
test and adds the  declarations.
Have a look at GWT's own unit tests, e.g. 
http://code.google.com/p/google-web-toolkit/source/browse/trunk/user/test/com/google/gwt/user/FormPanelTest.gwt.xml

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Re: Can CellWidgets contain custom composite widgets ?

2011-02-01 Thread zixzigma

after investigating CompositeCell or directly extending AbstractCell,
it is my understanding that to create custom cell,
the only option at the moment is to embed HTML markup in the render method 
as below.

in other words, we cannot create a custom composite widget with UiBinder,
and add it to the cell.

am I correct on this ?



@Override
public void render(Context context, Contact value, SafeHtmlBuilder sb) {
  /*
   * Always do a null check on the value. Cell widgets can pass null to
   * cells if the underlying data contains a null, or if the data 
arrives
   * out of order.
   */
  if (value == null) {
return;
  }

  // Add a checkbox. If the contact is a favorite, the box will be 
checked.
  sb.appendHtmlConstant("");
  if (favorites.contains(value)) {
sb.appendHtmlConstant("");
  } else {
sb.appendHtmlConstant("");
  }
  sb.appendHtmlConstant("");

  // Display the name in big letters.
  sb.appendHtmlConstant("");
  sb.appendEscaped(value.name);
  sb.appendHtmlConstant("");

  // Display the address in normal text.
  sb.appendHtmlConstant("");
  sb.appendEscaped(value.address);
  sb.appendHtmlConstant("");

  sb.appendHtmlConstant("");
}

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Re: 2 Modules in 1 GWT-App, both starting the onModuleLoad?

2011-02-01 Thread Colin Alworth

>From the little information here, it seems that either Child2.html has a 
script tag loading Child1.nocache.js or Parent.nocache.js

Parent serves no purpose in your setup - if it were compiled and run, it 
would try to start both applications at once.

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Re: Help, UIBinder and mixed mode HTML

2011-02-01 Thread John Gentilin

My bad... My java code was generic but I started with a copy
of the java code + template from an exiting source which had
constructor code of

initWidget(uiBinder.createAndBindUi(null));
vs
initWidget(uiBinder.createAndBindUi(this));

Which works till you bind something :-)

-John G

On 2/1/11 1:22 AM, John Gentilin wrote:

My Java class is just the plain vanilla code when you use the wizard to
create a UIBinder object, I have not added any functionality. The only
changes I have done is to comment out the @UIField definitions that
the WindowsBuilder editor inserted. Including any one of the 6 fields
I defined results in the widget not rendering..

I am running this on GWT 2.1.1 and I also tried 2.1.0 if fails the same
in both modes.

-John G

On 2/1/11 12:34 AM, Jan Mostert wrote:
Maybe post the code that you use to bind the component, problem is
most likely there.

--
Jan Vladimir Mostert
BEngSci

Mail: j...@mycee.com
MyCee Technologies

On Tue, Feb 1, 2011 at 10:20 AM, John Gentilin > wrote:

I have a UIBinder file that specifies a HTMLPanel that contains a mix
of plain HTML and GWT widgets.
If I don't bind any of the variables, the Widget will load correctly
and display. As soon as I bind a UI field
in my code including the @UIField definition, @UiField TextBox
userid; then initializing the Widget fails in a NPE.

Thanks for any help in advance.
John Gentilin

This is the exception
java.lang.NullPointerException: null at

com.CloudTvApps.PicRollr.client.Modules.Registration.RegistrationController_UIDefaultImpl.createAndBindUi(RegistrationController_UIDefaultImpl.java:
61) at

com.CloudTvApps.PicRollr.client.Modules.Registration.RegistrationController_UIDefaultImpl.createAndBindUi(RegistrationController_UIDefaultImpl.java:
1) at

com.CloudTvApps.PicRollr.client.Modules.Registration.RegistrationController.
(RegistrationController.java:37)
at

com.CloudTvApps.PicRollr.client.PicRollrEntryPoint.onModuleLoad(PicRollrEntryPoint.java:
32)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:
39)
at

sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:
25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.google.gwt.dev.shell.ModuleSpace.onLoad(ModuleSpace.java:
396)
at

com.google.gwt.dev.shell.OophmSessionHandler.loadModule(OophmSessionHandler.java:
183)
at

com.google.gwt.dev.shell.BrowserChannelServer.processConnection(BrowserChannelServer.java:
510)
at
com.google.gwt.dev.shell.BrowserChannelServer.run(BrowserChannelServer.java:
352)
at java.lang.Thread.run(Thread.java:680)

UIBinder definition

http://dl.google.com/gwt/DTD/xhtml.ent";>

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