SectionsGrid.java

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/*
 * Turró i Cutiller Foundation. License notice.
 * Copyright (C) 2018 Lluis Turró Cutiller <http://www.turro.org/>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
package org.turro.newsletter;
 
import java.util.TreeSet;
import org.turro.string.Strings;
import org.turro.elephant.util.Images;
import org.turro.i18n.I_;
import org.turro.jpa.entity.EntityCollections;
import org.turro.publication.entity.NewsSection;
import org.turro.publication.entity.NewsSectionType;
import org.turro.publication.entity.Newsletter;
import org.turro.zkoss.label.LabelTypes;
import org.turro.zkoss.layout.GroupboxArrow;
import org.zkoss.zk.ui.HtmlBasedComponent;
import org.zkoss.zk.ui.event.Event;
import org.zkoss.zk.ui.event.EventListener;
import org.zkoss.zk.ui.event.Events;
import org.zkoss.zul.Button;
import org.zkoss.zul.Hlayout;
import org.zkoss.zul.Html;
import org.zkoss.zul.Image;
import org.zkoss.zul.Include;
import org.zkoss.zul.Label;
import org.zkoss.zul.Vlayout;
 
public class SectionsGrid extends Vlayout {
 
  private Newsletter newsletter;
 
  public void setNewsletter(Newsletter newsletter) {
    this.newsletter = newsletter;
    addRows();
  }
 
  private void addRows() {
    getChildren().clear();
    int idx = 1;
    for(NewsSection newsSection : new TreeSet<NewsSection>(newsletter.getNewsSections())) {
      newsSection.setNewsOrder(idx++);
      GroupboxArrow gba = new GroupboxArrow() {
        @Override
        protected void doFillContent() {
          Include sectionBand = new Include("/WEB-INF/_zul/publication/sectionBand.zul");
          sectionBand.setDynamicProperty("entity", newsSection);
          sectionBand.setDynamicProperty("grid", SectionsGrid.this);
          appendChild(sectionBand);
          if(NewsSectionType.NEWS_SECTION_TEXT.equals(newsSection.getType())) {
            Include textBand = new Include("/WEB-INF/_zul/publication/textBand.zul");
            textBand.setDynamicProperty("entity", newsSection);
            appendChild(textBand);
          } else if(NewsSectionType.NEWS_SECTION_IMAGE.equals(newsSection.getType())) {
            Include imageBand = new Include("/WEB-INF/_zul/publication/imageBand.zul");
            imageBand.setDynamicProperty("entity", newsSection);
            appendChild(imageBand);
          } else if(NewsSectionType.NEWS_SECTION_EXTERNAL.equals(newsSection.getType())) {
            Include externalBand = new Include("/WEB-INF/_zul/publication/externalBand.zul");
            externalBand.setDynamicProperty("entity", newsSection);
            appendChild(externalBand);
          }
        }
      };
      Hlayout hbox = new Hlayout();
      gba.setCaption(hbox);
      hbox.setSclass("z-valign-middle");
      hbox.setValign("middle");
      hbox.appendChild(new Image(Images.getImage(newsSection.isNewColumn() ? "table_column" : "table_row")));
      hbox.appendChild(LabelTypes.getSoftLabel(I_.byKey(newsSection.getType().toString())));
      hbox.appendChild(getLabel(newsSection));
      gba.setOpen(false);
      appendChild(gba);
    }
    Hlayout buttonBox = new Hlayout();
    buttonBox.setSpacing("20px");
    buttonBox.setStyle("margin:20px;");
    Button addImage = new Button(I_.get("Add") + " " + I_.get("Image section"));
    addImage.addEventListener(Events.ON_CLICK, new EventListener<Event>() {
      @Override
      public void onEvent(Event event) throws Exception {
        createSection(NewsSectionType.NEWS_SECTION_IMAGE);
      }
    });
    buttonBox.appendChild(addImage);
    Button addText = new Button(I_.get("Add") + " " + I_.get("Text section"));
    addText.addEventListener(Events.ON_CLICK, new EventListener<Event>() {
      @Override
      public void onEvent(Event event) throws Exception {
        createSection(NewsSectionType.NEWS_SECTION_TEXT);
      }
    });
    buttonBox.appendChild(addText);
    Button addExternal = new Button(I_.get("Add") + " " + I_.get("External section"));
    addExternal.addEventListener(Events.ON_CLICK, new EventListener<Event>() {
      @Override
      public void onEvent(Event event) throws Exception {
        createSection(NewsSectionType.NEWS_SECTION_EXTERNAL);
      }
    });
    buttonBox.appendChild(addExternal);
    appendChild(buttonBox);
  }
  
  public void deleteSection(NewsSection newsSection) {
    EntityCollections.entities(newsletter.getNewsSections()).remove(newsSection);
    newsSection.setNewsletter(null);
    setNewsletter(newsletter);
  }
  
  public void moveUp(NewsSection newsSection) {
    for(NewsSection ns : newsletter.getNewsSections()) {
      if(ns.getNewsOrder() == newsSection.getNewsOrder() - 1) {
        ns.setNewsOrder(newsSection.getNewsOrder());
        newsSection.setNewsOrder(newsSection.getNewsOrder() - 1);
        setNewsletter(newsletter);
        break;
      }
    }
  }
  
  public void moveDown(NewsSection newsSection) {
    for(NewsSection ns : newsletter.getNewsSections()) {
      if(ns.getNewsOrder() == newsSection.getNewsOrder() + 1) {
        ns.setNewsOrder(newsSection.getNewsOrder());
        newsSection.setNewsOrder(newsSection.getNewsOrder() + 1);
        setNewsletter(newsletter);
        break;
      }
    }
  }
  
  private void createSection(NewsSectionType type) {
    NewsSection e = new NewsSection();
    e.setNewsletter(newsletter);
    e.setType(type);
    e.setNewsOrder(newsletter.getNewsSections().size() + 1);
    newsletter.getNewsSections().add(e);
    setNewsletter(newsletter);
  }
  
  private HtmlBasedComponent getLabel(NewsSection newsSection) {
    if(newsSection.isEmpty()) {
      return new Label(I_.get("Empty"));
    } else {
      if(NewsSectionType.NEWS_SECTION_TEXT.equals(newsSection.getType())) {
        return new Label(Strings.truncateAndWarn(newsSection.getWiki(), 100));
      } else if(NewsSectionType.NEWS_SECTION_IMAGE.equals(newsSection.getType())) {
        return new Html("<div style='max-width:23px;max-height:23px;'>" + newsSection.getBody() + "</div>");
      } else if(NewsSectionType.NEWS_SECTION_EXTERNAL.equals(newsSection.getType())) {
        return new Label(Strings.truncateAndWarn(newsSection.getBody(), 100));
      } else {
        return new Label(I_.get("Empty"));
      }
    }
  }
  
}