Hello,
I am trying to extend a data table to be able to respond to clicks
anywhere on the row table:
public interface ClickHandler<T> extends Serializable {
public void onClick( Item<T> item );
}
public class CustomDataTable<T> extends DataTable<T> {
private FilterForm filterForm;
private ISortableDataProvider<T> dataProvider;
private ClickHandler<T> rowClickHandler;
public ClickHandler<T> getRowClickHandler() {
return rowClickHandler;
}
public void setRowClickHandler( ClickHandler<T> rowClickHandler ) {
this.rowClickHandler = rowClickHandler;
}
public boolean isClickable() {
return rowClickHandler != null;
}
public CustomDataTable( String id, IColumn<T>[] columns,
ISortableDataProvider<T> dataProvider, int rowsPerPage,
FilterForm filterForm )
{
super( id, columns, dataProvider, rowsPerPage );
this.dataProvider = dataProvider;
this.filterForm = filterForm;
createToolbars();
}
private void createToolbars() {
addTopToolbar( new NavigationToolbar( this ) );
if ( this.filterForm != null )
addTopToolbar( new FilterToolbar( this, filterForm,
(IFilterStateLocator) dataProvider ) );
addTopToolbar( new HeadersToolbar( this, dataProvider ) );
addBottomToolbar( new NoRecordsToolbar( this ) );
addBottomToolbar( new NavigationToolbar( this ) );
}
public CustomDataTable( String id, IColumn<T>[] columns,
ISortableDataProvider<T> dataProvider, int rowsPerPage ) {
this( id, columns, dataProvider, rowsPerPage, null );
}
@Override
protected Item<T> newRowItem( String id, int index, IModel<T> model ) {
return isClickable() ? new ClickableItem<T>( id, index, model,
rowClickHandler ) : new OddEvenItem<T>( id,
index, model );
}
}
public class ClickableItem<T> extends OddEvenItem<T> implements ILinkListener {
private ClickHandler<T> handler;
public ClickableItem( String id, int index, IModel<T> model,
ClickHandler<T> handler ) {
super( id, index, model );
this.handler = handler;
}
@Override
public void onLinkClicked() {
handler.onClick( this );
}
@Override
protected void onComponentTag( ComponentTag tag ) {
super.onComponentTag( tag );
tag.put( "onclick",
String.format(
"window.location.href='%1$s';return false",
urlFor(
ILinkListener.INTERFACE ) ) );
String cls = "clickable";
String currentClass = tag.getAttributes().getString( "class" );
if ( currentClass != null )
cls += " " + currentClass;
tag.put( "class",
cls );
}
}
Now the problem:
the links created for clicks on table row look like this:
http://localhost/app/properties/wicket:interface/:3:properties:filterForm:dataTable:rows:2::ILinkListener::/
while the url for "normal" Link is:
http://localhost/app/properties.3.2?wicket:interface=:3:properties:filterForm:dataTable:rows:3:cells:3:cell:edit:2:ILinkListener::
Clicking on the table row makes no redirect. Usually there is a redirect
to: http://localhost/app/properties.3.2
When I hit refresh I get:
WicketMessage: unable to find component with path
properties:filterForm:dataTable:rows:5 on stateless page [Page class =
eu.org.squash.appcomponents.properties.example.PropertiesPage, id = 3,
version = 5, ajax = 0] it could be that the component is inside a
repeater make your component return false in getStatelessHint()
the row index "properties:filterForm:dataTable:rows:5" keeps advancing
every time. There are only 2 rows in my test DataTable.
Could anyone comment? Maybe I am simply building the link for the row
incorrectly.
--
Leszek Gawron
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