org.geowe.client.local.main.tool.info.HtmlReportLayerTool.java Source code

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Here is the source code for org.geowe.client.local.main.tool.info.HtmlReportLayerTool.java

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/*
 * #%L
 * GeoWE Project
 * %%
 * Copyright (C) 2015 - 2016 GeoWE.org
 * %%
 * This file is part of GeoWE.org.
 * 
 * GeoWE is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * GeoWE is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with GeoWE.  If not, see <http://www.gnu.org/licenses/>.
 * #L%
 */
package org.geowe.client.local.main.tool.info;

import java.util.ArrayList;
import java.util.List;

import javax.enterprise.context.ApplicationScoped;
import javax.inject.Inject;

import org.geowe.client.local.ImageProvider;
import org.geowe.client.local.layermanager.LayerManagerWidget;
import org.geowe.client.local.layermanager.tool.LayerTool;
import org.geowe.client.local.layermanager.tool.export.exporter.FileExporter;
import org.geowe.client.local.main.map.GeoMap;
import org.geowe.client.local.messages.UIMessages;
import org.geowe.client.local.model.vector.VectorLayer;
import org.geowe.client.local.ui.ProgressBarDialog;
import org.gwtopenmaps.openlayers.client.feature.VectorFeature;
import org.jboss.errai.common.client.api.tasks.ClientTaskManager;

import com.google.gwt.core.client.GWT;
import com.google.gwt.resources.client.ImageResource;
import com.google.gwt.safehtml.shared.SafeHtml;
import com.google.gwt.user.client.ui.HTML;
import com.sencha.gxt.core.client.XTemplates;
import com.sencha.gxt.core.client.dom.ScrollSupport;
import com.sencha.gxt.core.client.dom.ScrollSupport.ScrollMode;
import com.sencha.gxt.widget.core.client.Dialog;
import com.sencha.gxt.widget.core.client.Dialog.PredefinedButton;
import com.sencha.gxt.widget.core.client.button.TextButton;
import com.sencha.gxt.widget.core.client.container.HorizontalLayoutContainer;
import com.sencha.gxt.widget.core.client.event.SelectEvent;
import com.sencha.gxt.widget.core.client.event.SelectEvent.SelectHandler;

/**
 * Herramienta para generar informe html de una capa
 * 
 * @author rafa@geowe.org
 *
 */
@ApplicationScoped
public class HtmlReportLayerTool extends LayerTool {

    @Inject
    private ClientTaskManager taskManager;

    public interface VectorLayerTemplate extends XTemplates {
        @XTemplate(source = "LayerInfoTemplate.html")
        public SafeHtml renderTemplate(UIMessages uimessages, VectorLayer data, List<List<String>> attrValues,
                List<String> attrNames);
    }

    @Inject
    public HtmlReportLayerTool(LayerManagerWidget layerManagerWidget, GeoMap geoMap) {
        super(layerManagerWidget, geoMap);
        setText(UIMessages.INSTANCE.htmlReportButtonText());
    }

    @Override
    public String getName() {
        return UIMessages.INSTANCE.htmlReportButtonText();
    }

    @Override
    public ImageResource getIcon() {
        return ImageProvider.INSTANCE.fileText24();
    }

    @Override
    public void onClick() {
        final ProgressBarDialog autoMessageBox = new ProgressBarDialog(false, UIMessages.INSTANCE.processing());
        autoMessageBox.center();
        autoMessageBox.show();
        taskManager.execute(new Runnable() {
            @Override
            public void run() {
                showDialog(getHtmlReport());
                autoMessageBox.hide();
            }
        });

    }

    private void showDialog(final HTML htmlReport) {
        final Dialog simple = new Dialog();
        simple.setHeadingText("GeoWe Report");
        simple.setSize("420px", "420px");
        simple.setResizable(true);
        simple.setHideOnButtonClick(true);
        simple.setPredefinedButtons(PredefinedButton.CLOSE);
        simple.setBodyStyleName("pad-text");
        simple.getBody().addClassName("pad-text");
        simple.add(getPanel(htmlReport));
        simple.addButton(new TextButton(UIMessages.INSTANCE.download(), new SelectHandler() {
            @Override
            public void onSelect(SelectEvent event) {
                FileExporter.saveAs(htmlReport.getHTML(), getSelectedVectorLayer().getName() + ".html");
            }
        }));
        simple.show();
    }

    private HorizontalLayoutContainer getPanel(final HTML data) {
        HorizontalLayoutContainer panel = new HorizontalLayoutContainer();
        panel.setSize("400px", "400px");
        panel.add(data);
        ScrollSupport scrollSupport = panel.getScrollSupport();
        scrollSupport.setScrollMode(ScrollMode.AUTO);
        return panel;
    }

    public HTML getHtmlReport() {
        VectorLayerTemplate template = GWT.create(VectorLayerTemplate.class);
        VectorFeature[] features = getSelectedVectorLayer().getFeatures();
        if (features == null) {
            features = new ArrayList<VectorFeature>().toArray(new VectorFeature[0]);
        }
        return new HTML(template.renderTemplate(UIMessages.INSTANCE, getSelectedVectorLayer(),
                getAttributesValue(features), getAttributeNames()));
    }

    private List<List<String>> getAttributesValue(VectorFeature... features) {
        List<List<String>> attrValues = new ArrayList<List<String>>();
        for (VectorFeature feature : features) {
            attrValues.add(feature.getAttributes().getAttributeValues());
        }
        return attrValues;
    }

    private List<String> getAttributeNames() {
        return new ArrayList<String>(getSelectedVectorLayer().getSchema().getAttributeNames());
    }
}