"A context menu (also called contextual, shortcut, and popup or pop-up menu) is a menu in a graphical user interface (GUI) that appears upon user interaction, such as a right-click mouse operation. A context menu offers a limited set of choices that are available in the current state, or context, of the operating system or application. Usually the available choices are actions related to the selected object."

package org.lorainelab.igb.contextmenu.menuapi;

import java.util.List;
import java.util.Optional;
import org.lorainelab.igb.contextmenu.menuapi.model.AnnotationContextEvent;
import org.lorainelab.igb.contextmenu.menuapi.model.ContextMenuItem;

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

package org.lorainelab.igb.contextmenu.menuapi.model;
import static comjava.google.common.base.Preconditions.checkNotNullutil.Set;
import static comjava.googleutil.common.base.Preconditions.checkState;
import com.google.common.base.Strings;
import com.google.common.collect.ImmutableSet;
import java.util.Optional;
import java.util.Set;
import java.util.function.Function;
import org.lorainelab.igb.context.menu.MenuSection;
/**
 *
 * @author dcnorris
 */
public class ContextMenuItem {
    private final String menuLabel;
    private MenuIcon menuIcon;
    private function.Function;

public class ContextMenuItem extends MenuItem {
    private ContextMenuSection menuSection = ContextMenuSection.APP;
    public ContextMenuItem(String menuLabel, Set<MenuItem> subMenuItems) {
        super(menuLabel, subMenuItems);
    }
    public ContextMenuItem(String menuLabel, Function<Void, Void> action;) {
    private Set<ContextMenuItem> subMenuItems;
    private int weight = 0super(menuLabel, action);
    private MenuSection menuSection = MenuSection.APP;}
    public void ContextMenuItemsetMenuSection(String menuLabel, Set<ContextMenuItem> subMenuItemsContextMenuSection menuSection) {
        checkNotNull(menuLabel);
        checkNotNull(subMenuItems)this.menuSection = menuSection;
        checkState(!Strings.isNullOrEmpty(menuLabel));}
    public    checkState(!subMenuItems.isEmpty());ContextMenuSection getMenuSection() {
        this.menuLabel = menuLabelreturn menuSection;
        this.subMenuItems = ImmutableSet.copyOf(subMenuItems);
    }
    public ContextMenuItem(String menuLabel, Function<Void, Void> action)}
}

, ex);
        }
        contextMenuItem.setMenuSection(ContextMenuSection.INFORMATION);
        return Optional.ofNullable(Arrays.asList(contextMenuItem));
    }
}

package org.lorainelab.igb.context.menu.api.quickstart;
import aQute.bnd.annotation.component.Component;
import java.io.InputStream;
import java.util.Arrays;
import java.util.List;
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.lorainelab.igb.context.menu.model.MenuIcon;
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);
    private static final String ICONPATH = "terminal.png";
    @Override
    public Optional<List<ContextMenuItem>> buildMenuItem(AnnotationContextEvent event) {<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.lorainelab.igb</groupId>
        <artifactId>igb-project</artifactId>
        <version>9.0.0</version>
    </parent>
    <groupId>org.lorainelab.igb</groupId>
    <artifactId>org.lorainelab.igb.menu.api.quickstart</artifactId>
    <version>1.0.0</version>
    <packaging>bundle</packaging>
    <name>Context Menu Extension Quickstart</name>
    
    <dependencies>
        <dependency>
            <groupId>biz.aQute.bnd</groupId>
            <artifactId>bndlib</artifactId>
            <scope>provided</scope>
        </dependency>
        ContextMenuItem<dependency>
 contextMenuItem = new ContextMenuItem("Log Selection ids", (Void t) -> {
  <groupId>org.lorainelab.igb</groupId>
          event.getSelectedItems().stream().map(selectedSym -> selectedSym.getID()).forEach(logger::info); <artifactId>genometry</artifactId>
            return t;
<scope>provided</scope>
        </dependency>  });
        <!--Start of  try (InputStream resourceAsStream = ContextMenuExtension.class.getClassLoader().getResourceAsStream(ICONPATH)) {
 logging dependencies-->
        <dependency>
           contextMenuItem.setMenuIcon(new MenuIcon(resourceAsStream)); <groupId>org.slf4j</groupId>
        } catch (Exception ex) { <artifactId>slf4j-api</artifactId>
            logger.error(ex.getMessage(), ex);<scope>provided</scope>
        }
</dependency>
        <!--End of  contextMenuItem.setMenuSection(MenuSection.INFORMATION);logging dependencies-->
        return Optional.ofNullable(Arrays.asList(contextMenuItem));  <dependency>
    }
}