How to use UIBinder with customized composite widget

[Rick]

Hi all

As GWT is adding widgets in Horizontal panel, in the same way I want
to get element in my composite widgets so that I can manage their
layout in onAttach means I want to get label and html in RComposite
widget's on attach.

ui.xml
<ui:UiBinder xmlns:ui='urn:ui:com.google.gwt.uibinder'
xmlns:g='urn:import:com.google.gwt.user.client.ui'
xmlns:my='urn:import:gwt.testui.client'>

<my:RCompositeWidget>

<g:Label>My Widgets</g:Label>
<g:HTML>in a row</g:HTML>

</my:RCompositeWidget>

</ui:UiBinder>
-->RCompositeWidget
public class RCompositeWidget extends Composite {
public RCompositeWidget() {
HorizontalPanel hp = new HorizontalPanel();
initWidget(hp);
}

}

But I am getting following exception:
In com.google.gwt.uibinder.rebind.XMLElement$1@870aad, found
unexpected child "<g:Label>"

Regards

Rick

[Thomas Broyer]

RCompositeWidget has to implement HasWidgets if it's meant to be a
widget container, otherwise how would UiBinder add the widgets to it?
Actually, UiBinder does not know that RCompositeWidget internally uses
an HorizontalPanel.

[Rick]

Thanks Thomas

Widgets are now adding by implementing HasWidgets interface.

But I need to do a little more. As there are tags in DockLayoutPanel
-- <g:north>, <g:west>, in the same way, I want to create my own
customized tags like <my:left>,<my:right> etc so that I can arrange my
layout accordingly. Can it be possible. If it is, kindly let me know
as it will be a great help for me to design my UI with more
flexibility,

On Dec 21, 7:44 pm, Thomas Broyer <t.bro...@gmail.com> wrote:
> On Dec 21, 12:13 pm, Rick <rick4...@gmail.com> wrote:
>
>
>
> > Hi all
>
> > As GWT is adding widgets in Horizontal panel, in the same way I want
> > to get element in my composite widgets so that I can manage their
> > layout in onAttach means I want to get label and html in RComposite
> > widget's on attach.
>
> > ui.xml

> > <ui:UiBinderxmlns:ui='urn:ui:com.google.gwt.uibinder'

> >         xmlns:g='urn:import:com.google.gwt.user.client.ui'
> >         xmlns:my='urn:import:gwt.testui.client'>
>
> >         <my:RCompositeWidget>
>
> >         <g:Label>My Widgets</g:Label>
> >         <g:HTML>in a row</g:HTML>
>
> >         </my:RCompositeWidget>
>
> > </ui:UiBinder>
> > -->RCompositeWidget
> > public class RCompositeWidget extends Composite {
> >         public RCompositeWidget() {
> >                 HorizontalPanel hp = new HorizontalPanel();
> >                 initWidget(hp);
> >         }
>
> > }
>
> > But I am getting following exception:
> >         In com.google.gwt.uibinder.rebind.XMLElement$1@870aad, found
> > unexpected child "<g:Label>"
>
> RCompositeWidget has to implement HasWidgets if it's meant to be a
> widget container, otherwise how wouldUiBinderadd the widgets to it?

> Actually,UiBinderdoes not know that RCompositeWidget internally uses
> an HorizontalPanel.

[Rick]

Any idea friends???

I request from GWT members to reply this post please.

Regards

Rick

[Thomas Broyer]

On Dec 22, 5:28 am, Rick <rick4...@gmail.com> wrote:
> Thanks Thomas
>
> Widgets are now adding by implementing HasWidgets interface.
>
> But I need to do a little more. As there are tags in DockLayoutPanel
> -- <g:north>, <g:west>,  in the same way, I want to create my own
> customized tags like <my:left>,<my:right> etc so that I can arrange my
> layout accordingly. Can it be possible. If it is, kindly let me know
> as it will be a great help for me to design my UI with more
> flexibility,

This is planned, but not yet available (there's a TODO in the code),
unless of course you patch GWT.

[Rick]

Thanks Thomas

I am successful to create my customized tag by patching UIBinderWriter
-> registerParsers() method. I think GWT has done most of the work for
supporting customized tag but keeping it private.

[Hans Speijer]

Any news on this topic? Could you be a bit more specific on how you
patched UIBinderWriter?

On Dec 24 2009, 5:15 am, Rick <rick4...@gmail.com> wrote:
> Thanks Thomas
>

[Rick]

Hi

You need to write your own parser taking clue from
DockLayoutPanelParser. Then You need to register this parser in
UIBinderWriter's registerParsers() method.

Feel free if I can further help.

Thanks and regards

Rick

On Jan 4, 6:11 pm, Hans Speijer <hans.spei...@gmail.com> wrote:
> Any news on this topic? Could you be a bit more specific on how you
> patched UIBinderWriter?
>
> On Dec 24 2009, 5:15 am, Rick <rick4...@gmail.com> wrote:
>
>
>
> > Thanks Thomas
>

> > I am successful to create mycustomizedtag by patching UIBinderWriter