Thanks for the reply Thomas.
Perhaps what I'm doing is premature optimisation.
I'm trying to make my widget simpler, by not using a composite. What I
have looks like this:
Foo.java:
class Foo extends ComplexPanel {
...ui binder boilerplate...
@UiField
Element childLocation;
public Foo() {
setElement(ui.createAndBindUi(this));
}
@Override
public void add(Widget child) {
// record the child widget for attachment during onLoad()
this.child = child;
}
@Override
protected void onLoad() {
addAndReplaceElement(child,
childLocation.<com.google.gwt.user.client.Element>cast());
}
private void addAndReplaceElement(Widget widget,
com.google.gwt.user.client.Element toReplace) {
... copied from HTMLPanel ...
}
}
Foo.ui.xml:
<ui:UiBinder
xmlns:ui='urn:ui:com.google.gwt.uibinder'
xmlns:g='urn:import:com.google.gwt.user.client.ui'
>
<div>
...plain html...
<span ui:field="childLocation"/>
...more html...
</div>
</ui:UiBinder>
So my template is simpler than a Composite would be.
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