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Introduction to the Context Menu API

 

Design

Interface

package org.lorainelab.igb.context.menu;
import java.util.Optional;
import org.lorainelab.igb.context.menu.model.AnnotationContextEvent;
import org.lorainelab.igb.context.menu.model.ContextMenuItem;

/**
 *
 * @author dcnorris
 */
public interface AnnotationContextMenuProvider {
    public Optional<ContextMenuItem> buildMenuItem(AnnotationContextEvent event);
    public MenuSection getMenuSection();
}

Data Model

AnnotationContextEvent

package org.lorainelab.igb.context.menu.model;
import com.affymetrix.genometry.symmetry.impl.SeqSymmetry;
import java.util.List;
/**
 *
 * @author dcnorris
 */
public class AnnotationContextEvent {
    private final List<SeqSymmetry> selectedItems;
    public AnnotationContextEvent(List<SeqSymmetry> selectedItems) {
        this.selectedItems = selectedItems;
    }
    public List<SeqSymmetry> getSelectedItems() {
        return selectedItems;
    }
}

ContextMenuItem

package org.lorainelab.igb.context.menu.api.quickstart;

import aQute.bnd.annotation.component.Component;
import java.util.Optional;
import org.lorainelab.igb.context.menu.AnnotationContextMenuProvider;
import org.lorainelab.igb.context.menu.MenuSection;
import org.lorainelab.igb.context.menu.model.AnnotationContextEvent;
import org.lorainelab.igb.context.menu.model.ContextMenuItem;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
 *
 * @author dcnorris
 */
@Component(immediate = true)
public class ContextMenuExtension implements AnnotationContextMenuProvider {
    private static final Logger logger = LoggerFactory.getLogger(ContextMenuExtension.class);
    @Override
    public Optional<ContextMenuItem> buildMenuItem(AnnotationContextEvent event) {
        ContextMenuItem contextMenuItem = new ContextMenuItem("Log Selection ids", (Void t) -> {
            event.getSelectedItems().stream().map(selectedSym -> selectedSym.getID()).forEach(logger::info);
            return t;
        });
        return Optional.ofNullable(contextMenuItem);
    }
    @Override
    public MenuSection getMenuSection() {
        return MenuSection.INFORMATION;
    }
}

MenuIcon

package org.lorainelab.igb.context.menu.model;
import com.google.common.io.BaseEncoding;
import java.io.InputStream;
import org.apache.commons.io.IOUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
 *
 * @author dcnorris
 */
public class MenuIcon {
    private String encodedImage;
    private static final Logger logger = LoggerFactory.getLogger(MenuIcon.class);
    public MenuIcon(InputStream resourceAsStream) {
        try {
            encodedImage = BaseEncoding.base64().encode(IOUtils.toByteArray(resourceAsStream));
        } catch (Exception ex) {
            logger.error(ex.getMessage(), ex);
        }
    }
    public byte[] getEncodedImage() {
        return BaseEncoding.base64().decode(encodedImage);
    }
}
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