/*
 * JBoss, Home of Professional Open Source
 * Copyright 2011 Red Hat Inc. and/or its affiliates and other contributors
 * as indicated by the @author tags. All rights reserved.
 * See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * This copyrighted material is made available to anyone wishing to use,
 * modify, copy, or redistribute it subject to the terms and conditions
 * of the GNU Lesser General Public License, v. 2.1.
 * This program is distributed in the hope that it will be useful, but WITHOUT A
 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
 * PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more details.
 * You should have received a copy of the GNU Lesser General Public License,
 * v.2.1 along with this distribution; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 * MA  02110-1301, USA.
 */

package org.jboss.as.console.client.core;

import com.google.gwt.dom.client.Style;
import com.google.gwt.user.client.ui.DockLayoutPanel;
import com.google.gwt.user.client.ui.IsWidget;
import com.google.gwt.user.client.ui.LayoutPanel;
import com.google.gwt.user.client.ui.Widget;
import com.google.inject.Inject;
import com.gwtplatform.mvp.client.ViewImpl;
import org.jboss.as.console.client.core.message.Message;
import org.jboss.as.console.client.core.message.MessageCenter;

/**
 * The main console layout that builds on GWT 2.1 layout panels.
 *
 * @author Heiko Braun
 */
public class MainLayoutViewImpl extends ViewImpl
        implements MainLayoutPresenter.MainLayoutView {

    private DockLayoutPanel panel;

    private LayoutPanel headerPanel;
    private LayoutPanel mainContentPanel;
    private LayoutPanel footerPanel;

    private Header header;
    private MessageCenter messageCenter;

    @Inject
    public MainLayoutViewImpl(Header header, Footer footer, MessageCenter messageCenter) {

        this.messageCenter = messageCenter;

        mainContentPanel = new LayoutPanel();
        mainContentPanel.setStyleName("main-content-panel");

        // see http://www.w3.org/TR/wai-aria/states_and_properties#aria-live
        mainContentPanel.getElement().setAttribute("role", "region");
        mainContentPanel.getElement().setAttribute("aria-live", "polite");
        mainContentPanel.getElement().setId("main-content-area");

        headerPanel = new LayoutPanel();
        headerPanel.setStyleName("header-panel");
        headerPanel.getElement().setId("header");

        footerPanel = new LayoutPanel();
        footerPanel.setStyleName("footer-panel");
        footerPanel.getElement().setId("footer");

        panel = new DockLayoutPanel(Style.Unit.PX);
        panel.getElement().setAttribute("id", "container");

        panel.addNorth(headerPanel, 80);
        panel.addSouth(footerPanel, 42);
        panel.add(mainContentPanel);

        getHeaderPanel().add(header.asWidget());
        getFooterPanel().add(footer.asWidget());
    }

    public Widget asWidget() {
        return panel;
    }

    @Override
    public void setInSlot(Object slot, IsWidget content) {

        if (slot == MainLayoutPresenter.TYPE_MainContent) {
            if(content!=null)
                setMainContent(content);
        }
        else {
            messageCenter.notify(
                    new Message("Unknown slot requested:" + slot)
            );
        }
    }

    public void setMainContent(IsWidget content) {
        mainContentPanel.clear();

        if (content != null) {
            mainContentPanel.add(content);
        }
    }

    public LayoutPanel getHeaderPanel() {
        return headerPanel;
    }

    public LayoutPanel getFooterPanel() {
        return footerPanel;
    }

}