Synnefo

/*

 * Copyright (c) 2011 Greek Research and Technology Network

 */

package gr.grnet.pithos.web.client;

import gr.grnet.pithos.web.client.commands.NewGroupCommand;

import com.google.gwt.event.dom.client.ClickEvent;

import com.google.gwt.event.dom.client.ClickHandler;

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

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

import com.google.gwt.user.client.ui.AbstractImagePrototype;

import com.google.gwt.user.client.ui.MenuBar;

import com.google.gwt.user.client.ui.MenuItem;

import com.google.gwt.user.client.ui.PopupPanel;

/**

 * The 'Group' menu implementation.

 */

public class GroupMenu extends PopupPanel implements ClickHandler {

        /**

         * The widget's images.

         */

        private Images images;

        private final MenuBar contextMenu;

        /**

         * An image bundle for this widgets images.

         */

        public interface Images extends ClientBundle {

                @Source("gr/grnet/pithos/resources/groupevent.png")

                ImageResource groupNew();

                @Source("gr/grnet/pithos/resources/view_text.png")

                ImageResource viewText();

        }

        /**

         * The widget's constructor.

         *

         * @param newImages the image bundle passed on by the parent object

         */

        public GroupMenu(final Images newImages) {

                // The popup's constructor's argument is a boolean specifying that it

                // auto-close itself when the user clicks outside of it.

                super(true);

                setAnimationEnabled(true);

                images = newImages;

                contextMenu = new MenuBar(true);

                MenuItem newGroupItem = new MenuItem("<span>" + AbstractImagePrototype.create(newImages.groupNew()).getHTML() + "&nbsp;New Group</span>", true, new NewGroupCommand(this));

                newGroupItem.getElement().setId("topMenu.group.newGroup");

                contextMenu.addItem(newGroupItem);

                add(contextMenu);

        }

        @Override

        public void onClick(ClickEvent event) {

                GroupMenu menu = new GroupMenu(images);

                int left = event.getRelativeElement().getAbsoluteLeft();

                int top = event.getRelativeElement().getAbsoluteTop() + event.getRelativeElement().getOffsetHeight();

                menu.setPopupPosition(left, top);

                menu.show();

        }

        /**

         * Retrieve the contextMenu.

         *

         * @return the contextMenu

         */

        public MenuBar getContextMenu() {

                contextMenu.setAutoOpen(false);

                return contextMenu;

        }

}