Synnefo » Pithos

/*

 * Copyright 2009 Electronic Business Systems Ltd.

 *

 * This file is part of GSS.

 *

 * GSS is free software: you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation, either version 3 of the License, or

 * (at your option) any later version.

 *

 * GSS 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 General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with GSS.  If not, see <http://www.gnu.org/licenses/>.

 */

package gr.ebs.gss.client;

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.Command;

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

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

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

/**

 * The 'Help' menu implementation.

 */

public class HelpMenu extends PopupPanel implements ClickHandler {

	/**

	 * The widget's images.

	 */

	private final Images images;

	private MenuBar contextMenu  = new MenuBar(true);

	/**

	 * An image bundle for this widget's images.

	 */

	public interface Images extends ClientBundle{

		@Source("gr/ebs/gss/resources/khelpcenter.png")

		ImageResource userGuide();

		@Source("gr/ebs/gss/resources/linewidth.png")

		ImageResource terms();

		@Source("gr/ebs/gss/resources/bell.png")

		ImageResource reportAbuse();

		@Source("gr/ebs/gss/resources/info.png")

		ImageResource about();

		@Source("gr/ebs/gss/resources/edit_add.png")

		ImageResource upgradeQuota();

	}

	/**

	 * The widget's constructor.

	 *

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

	 */

	public HelpMenu(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;

		createMenu();

		add(contextMenu);

	}

	@Override

	public void onClick(ClickEvent event) {

		HelpMenu menu = new HelpMenu(images);

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

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

		menu.setPopupPosition(left, top);

		menu.show();

	}

	public MenuBar createMenu() {

		contextMenu.clearItems();

		contextMenu.setAutoOpen(false);

		Command hideCommand = new Command() {

			@Override

			public void execute() {

				hide();

			}

		};

		Command aboutCommand = new Command(){

			@Override

			public void execute() {

				AboutDialog dlg = new AboutDialog();

				dlg.center();

			}

		};

		contextMenu.addItem("<span>" + AbstractImagePrototype.create(images.userGuide()).getHTML() + "&nbsp;<a class='hidden-link' " +

					"href='/userguide/el' target='_blank'>User Guide</a></span>", true, hideCommand);

		contextMenu.addItem("<span>" + AbstractImagePrototype.create(images.terms()).getHTML() + "&nbsp;<a class='hidden-link' " +

					"href='/terms' target='_blank'>Terms &amp; Conditions</a></span>", true, hideCommand);

		contextMenu.addItem("<span>" + AbstractImagePrototype.create(images.reportAbuse()).getHTML() + "&nbsp;<a class='hidden-link' " +

				"href='/report-abuse' target='_blank'>Report abuse</a></span>", true, hideCommand);

		contextMenu.addItem("<span>" + AbstractImagePrototype.create(images.upgradeQuota()).getHTML() + "&nbsp;<a class='hidden-link' " +

					"href='/pithos/coupon' target='_blank'>Upgrade quota</a></span>", true, hideCommand);

		contextMenu.addItem("<span>" + AbstractImagePrototype.create(images.about()).getHTML() + "&nbsp;About</span>", true, aboutCommand);

		return contextMenu;

	}

}