org.geoserver.taskmanager.web.panel.DropDownPanel.java Source code

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Here is the source code for org.geoserver.taskmanager.web.panel.DropDownPanel.java

Source

/* (c) 2017 Open Source Geospatial Foundation - all rights reserved
 * This code is licensed under the GPL 2.0 license, available at the root
 * application directory.
 */
package org.geoserver.taskmanager.web.panel;

import java.util.List;

import org.apache.wicket.ajax.AjaxRequestTarget;
import org.apache.wicket.ajax.form.OnChangeAjaxBehavior;
import org.apache.wicket.markup.html.basic.Label;
import org.apache.wicket.markup.html.form.DropDownChoice;
import org.apache.wicket.markup.html.form.TextField;
import org.apache.wicket.markup.html.panel.Panel;
import org.apache.wicket.model.IModel;
import org.apache.wicket.model.Model;

public class DropDownPanel extends Panel {

    private static final long serialVersionUID = -1829729746678003578L;

    public DropDownPanel(String id, IModel<String> model, IModel<? extends List<? extends String>> choiceModel) {
        this(id, model, choiceModel, null);

    }

    public DropDownPanel(String id, IModel<String> model, IModel<? extends List<? extends String>> choiceModel,
            IModel<String> labelModel) {
        super(id, model);

        boolean custom = choiceModel.getObject().contains("");
        boolean useDropDown = !custom || choiceModel.getObject().contains(model.getObject());
        add(new Label("message", labelModel));
        add(new DropDownChoice<String>("dropdown", useDropDown ? model : new Model<String>(""), choiceModel));
        add(new TextField<String>("custom", model).setVisible(!useDropDown));

        if (custom) {
            setOutputMarkupId(true);
            getDropDownChoice().add(new OnChangeAjaxBehavior() {
                private static final long serialVersionUID = 7823984472638368286L;

                @Override
                protected void onUpdate(AjaxRequestTarget target) {
                    boolean useDropDown = !getDropDownChoice().getModelObject().equals("");
                    if (useDropDown) {
                        model.setObject(getDropDownChoice().getModelObject());
                        getDropDownChoice().setModel(model);
                    } else {
                        getDropDownChoice().setModel(new Model<String>(""));
                    }
                    getTextField().setVisible(!useDropDown);
                    target.add(DropDownPanel.this);
                }

            });
        }
    }

    @SuppressWarnings("unchecked")
    public DropDownChoice<String> getDropDownChoice() {
        return (DropDownChoice<String>) get("dropdown");
    }

    @SuppressWarnings("unchecked")
    public TextField<String> getTextField() {
        return (TextField<String>) get("custom");
    }
}