right. Firstly you shouldn't have to call super.onAttach(), the real
problem is you are effectively bypassing GWT's widget/event system by
trying to get the widget's element and attach it directly. In effect
you're mixing GWT and Javascipt and it's not being done correctly.
By adding to the DOM I think you mean add to the <body> element,
rather than adding to a particular element.
You give the example:
RootPanel.get("myId").add(testWidget );
... but if you want to add to the body, just do:
RootPanel.get().add(testWidget );
... and get rid of that super.onAttach()
On Jun 22, 1:03 am, kuku <kukuda...@googlemail.com> wrote:
> Heres my example (a custom widget):
>
> public class TestWidget extends Composite {
>
> private static TestWidgetUiBinder uiBinder = GWT
> .create(TestWidgetUiBinder.class);
>
> interface TestWidgetUiBinder extends UiBinder<Widget, TestWidget> {
> }
>
> @UiField
> Button button;
>
> public TestWidget(String firstName) {
> initWidget(uiBinder.createAndBindUi(this));
> button.setText(firstName);
> super.onAttach();
> }
>
> @UiHandler("button")
> void onClick(ClickEvent e) {
> Window.alert("Hello!");
> }
>
> }
>
> And here the code to add the Widget to a Panel:
>
> TestWidget testWidget = new TestWidget("myTestWidget");
> RootPanel.getBodyElement().appendChild(testWidget.getElement());
> mainPanel.getElement().appendChild(testWidget.getElement());
>
> I know that it is possible to add an Widget directly to an RootPanel
> like this:
> RootPanel.get("myId").add(testWidget );
>
> However lets say i want to add widgets directly to the DOM. I don't
> really understand why i have to call super.onAattch(); to get my
> ClickEvent to work. If i don't execute that line it won't fire. I'm
> not sure if this is the right way maybe somebody can give me more
> information.
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