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package cn.mapway.ui.client.widget.menu;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import cn.mapway.ui.client.widget.menu.handler.DefaultMenuHandler;
import cn.mapway.ui.client.widget.menu.handler.MenuExecutor;
import cn.mapway.ui.client.widget.menu.render.HorizontalMenuRender;
import cn.mapway.ui.client.widget.menu.render.IMenuRender;

import com.google.gwt.resources.client.ImageResource;

/**
 * 菜单项.
 *
 * @author zhangjianshe
 */
public class MenuItem implements IMenuItem {


    private IMenuItem parent;
    private ImageResource icon;
    private String name;
    private String title;
    private List subMenus;
    private MenuExecutor handler;
    private Map parameters;
    private MenuDirection direction;
    private IMenuRender render;


    /**
     * Instantiates a new Menu item.
     */
    public MenuItem() {
        name = "菜单项";
        title = name;
        icon = null;
        subMenus = new ArrayList();
        parameters = new HashMap();
        direction = MenuDirection.HORIZONTAL;
        render = HorizontalMenuRender.HORIZONTAL_MENU_RENDER;
        parent = null;
        handler = null;
    }

    /**
     * Instantiates a new Menu item.
     *
     * @param name the name
     */
    public MenuItem(String name) {
        this(name, DefaultMenuHandler.INSTANCE);
    }

    /**
     * Instantiates a new Menu item.
     *
     * @param name    the name
     * @param handler the handler
     */
    public MenuItem(String name, MenuExecutor handler) {
        this(name, HorizontalMenuRender.HORIZONTAL_MENU_RENDER, handler);
    }

    /**
     * Instantiates a new Menu item.
     *
     * @param name   the name
     * @param render the render
     */
    public MenuItem(String name, IMenuRender render) {
        this(name, render, DefaultMenuHandler.INSTANCE);
    }

    /**
     * Instantiates a new Menu item.
     *
     * @param name    the name
     * @param render  the render
     * @param handler the handler
     */
    public MenuItem(String name, IMenuRender render, MenuExecutor handler) {
        this();
        this.name = name;
        this.render = render;
        this.handler = handler;
    }


    @Override
    public MenuDirection getDirection() {

        return direction;
    }

    @Override
    public void setDirection(MenuDirection direction) {
        this.direction = direction;
    }

    @Override
    public String getName() {

        return name;
    }

    @Override
    public void setName(String name) {
        this.name = name;
    }

    @Override
    public String getTitle() {

        return title;
    }

    @Override
    public void setTitle(String title) {
        this.title = title;

    }

    @Override
    public ImageResource getIcon() {

        return icon;
    }

    @Override
    public void setIcon(ImageResource icon) {

        this.icon = icon;
    }

    @Override
    public Map getParameters() {

        return parameters;
    }

    @Override
    public void setParameters(Map parameters) {
        this.parameters = parameters;
    }


    @Override
    public void setRender(IMenuRender render) {

        this.render = render;
    }

    @Override
    public IMenuRender getRender() {

        return render;
    }

    @Override
    public IMenuItem addSubMenu(IMenuItem item) {
        subMenus.add(item);
        item.setParent(this);
        return item;
    }

    @Override
    public List getSubMenus() {

        return this.subMenus;
    }

    @Override
    public IMenuItem parent() {

        return parent;
    }

    @Override
    public void setParent(MenuItem parent) {

        this.parent = parent;
    }

    @Override
    public void setHandler(MenuExecutor handler) {

        this.handler = handler;
    }

    @Override
    public MenuExecutor getHandler() {

        return this.handler;
    }


}