XML Template (GWT UI Binder)

<!DOCTYPE ui:UiBinder SYSTEM "http://dl.google.com/gwt/DTD/xhtml.ent">
<ui:UiBinder xmlns:ui="urn:ui:com.google.gwt.uibinder"
	xmlns:g="urn:import:com.google.gwt.user.client.ui"
	xmlns:m="urn:import:de.swm.commons.mobile.client.widgets">
	<ui:style>
	</ui:style>
	<g:HTMLPanel>
		<m:HeaderPanel ui:field="header" leftButton="Back">
			<m:OnlyDesktopLabel>Header Panel</m:OnlyDesktopLabel>
		</m:HeaderPanel>
		<m:HeaderPanel>
			<g:Label>No Button</g:Label>
		</m:HeaderPanel>
		<m:HeaderPanel leftButton="Menu">
			<g:Label>Left Btn.</g:Label>
		</m:HeaderPanel>
		<m:HeaderPanel rightButton="Menu">
			<g:Label>Right Btn.</g:Label>
		</m:HeaderPanel>
		<m:HeaderPanel leftButton="Back" rightButton="Next"/>
	</g:HTMLPanel>	
</ui:UiBinder>