org.geomajas.gwt2.plugin.geocoder.client.widget.GeocoderWidgetAlternativesViewImpl.java Source code

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Here is the source code for org.geomajas.gwt2.plugin.geocoder.client.widget.GeocoderWidgetAlternativesViewImpl.java

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/*
 * This is part of Geomajas, a GIS framework, http://www.geomajas.org/.
 *
 * Copyright 2008-2014 Geosparc nv, http://www.geosparc.com/, Belgium.
 *
 * The program is available in open source according to the GNU Affero
 * General Public License. All contributions in this program are covered
 * by the Geomajas Contributors License Agreement. For full licensing
 * details, see LICENSE.txt in the project root.
 */

package org.geomajas.gwt2.plugin.geocoder.client.widget;

import com.google.gwt.core.client.GWT;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.event.logical.shared.CloseEvent;
import com.google.gwt.event.logical.shared.CloseHandler;
import com.google.gwt.uibinder.client.UiBinder;
import com.google.gwt.uibinder.client.UiField;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.PopupPanel;
import com.google.gwt.user.client.ui.VerticalPanel;
import com.google.gwt.user.client.ui.Widget;
import org.geomajas.geometry.Bbox;
import org.geomajas.gwt2.plugin.geocoder.client.Geocoder;
import org.geomajas.plugin.geocoder.command.dto.GetLocationForStringAlternative;

import java.util.List;

/**
 *  Default implementation of {@link GeocoderWidgetAlternativesView}.
 * @author Emiel Ackermann
 * @author Jan Venstermans
 */
public class GeocoderWidgetAlternativesViewImpl implements GeocoderWidgetAlternativesView {

    @UiField
    protected PopupPanel popup;

    @UiField
    protected VerticalPanel alternativesPanel;

    private GeocoderWidgetAlternativesPresenter alternativesPresenter;

    private GeocoderWidgetResource resource;

    private static final MyUiBinder UIBINDER = GWT.create(MyUiBinder.class);

    /**
     * UI binder interface.
     *
     * @author Jan De Moerloose
     *
     */
    interface MyUiBinder extends UiBinder<Widget, GeocoderWidgetAlternativesViewImpl> {
    }

    /**
     * Main constructor.
     */
    public GeocoderWidgetAlternativesViewImpl() {
        this(Geocoder.getInstance().getBundleFactory().createGeocoderWidgetResource());
    }

    public GeocoderWidgetAlternativesViewImpl(GeocoderWidgetResource resource) {
        this.resource = resource;
        resource.css().ensureInjected();
        UIBINDER.createAndBindUi(this);
        popup.setAutoHideEnabled(true);
        popup.addCloseHandler(new CloseHandler<PopupPanel>() {

            public void onClose(CloseEvent<PopupPanel> event) {
                alternativesPresenter.onAlternativesViewClosed();
            }
        });
    }

    @Override
    public void setPosition(Bbox bbox) {
        int left = (int) bbox.getX();
        int top = (int) (bbox.getY() + bbox.getHeight());
        popup.setWidth(String.valueOf(bbox.getWidth()));
        popup.setPopupPosition(left, top);
    }

    @Override
    public void setAlternatives(List<GetLocationForStringAlternative> alternatives) {
        alternativesPanel.clear();
        for (GetLocationForStringAlternative alternative : alternatives) {
            final String altText = alternative.getCanonicalLocation();
            Label altLabel = new Label(altText);
            altLabel.setStyleName(resource.css().geocoderGadgetAltLabel());
            altLabel.addClickHandler(new ClickHandler() {

                public void onClick(ClickEvent event) {
                    alternativesPresenter.findLocation(altText);
                }
            });
            alternativesPanel.add(altLabel);
        }
    }

    @Override
    public void show() {
        popup.show();
    }

    @Override
    public void hide() {
        popup.hide();
    }

    @Override
    public void setPresenter(GeocoderWidgetAlternativesPresenter presenter) {
        this.alternativesPresenter = presenter;
    }

    @Override
    public Widget asWidget() {
        return popup;
    }
}