AutoCompleteItemDefinitionPanel.java

package com.evolveum.midpoint.gui.api.component.autocomplete;

import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;

import javax.xml.namespace.QName;

import org.apache.commons.lang3.StringUtils;
import org.apache.wicket.ajax.AjaxRequestTarget;
import org.apache.wicket.ajax.form.OnChangeAjaxBehavior;
import org.apache.wicket.extensions.ajax.markup.html.autocomplete.AutoCompleteTextField;
import org.apache.wicket.markup.html.form.FormComponent;
import org.apache.wicket.model.IModel;
import org.apache.wicket.model.Model;
import org.apache.wicket.util.convert.IConverter;

import com.evolveum.midpoint.gui.api.component.path.ItemPathDto;
import com.evolveum.midpoint.prism.ItemDefinition;

public class AutoCompleteItemDefinitionPanel extends AbstractAutoCompletePanel {

	
	private static final long serialVersionUID = 1L;
	private static final String ID_INPUT = "input";
	
	 public AutoCompleteItemDefinitionPanel(String id, final IModel<ItemDefinition<?>> model) {
	    	super(id);
	    	initLayout(model);
	    }
	
	private void initLayout(final IModel<ItemDefinition<?>> model) {
		final Model<String> itemDefinitionAsStringModel = new Model<String>(null);
		AutoCompleteTextField<String> input = new AutoCompleteTextField<String>(
				ID_INPUT, itemDefinitionAsStringModel, String.class, createAutoCompleteSettings()) {

			private static final long serialVersionUID = 1L;

			@Override
			protected Iterator<String> getChoices(String input) {
				List<String> defsAsString = new ArrayList<>();
				for (ItemDefinition<?> def : listChoices(input).values()) {
					defsAsString.add(def.getName().getLocalPart());
				}
				return defsAsString.iterator();
				
			}
			
			@Override
					protected void onConfigure() {
						itemDefinitionAsStringModel.setObject(null);
					}
			
			
		};
	
		 input.add(new OnChangeAjaxBehavior() {
				private static final long serialVersionUID = 1L;

				@Override
				protected void onUpdate(AjaxRequestTarget target) {
					String newValue = itemDefinitionAsStringModel.getObject();
					if (StringUtils.isNotBlank(newValue)){
						ItemDefinition<?> def = listChoices("").get(newValue);
						if (def != null) {
							model.setObject(def);
						}
					}
				}
			});
		
		add(input);
	}
	
	protected Map<String, ItemDefinition<?>> listChoices(String input){
		return new HashMap<String, ItemDefinition<?>>();
	}
	
	@Override
	public FormComponent<?> getBaseFormComponent() {
		return (FormComponent<?>) get(ID_INPUT);
	}

}