/**
    * This file Copyright (c) 2010-2017 Magnolia International
    * Ltd.  (http://www.magnolia-cms.com). All rights reserved.
    *
    *
    * This file is dual-licensed under both the Magnolia
    * Network Agreement and the GNU General Public License.
    * You may elect to use one or the other of these licenses.
    *
   * This file is distributed in the hope that it will be
   * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
   * implied warranty of MERCHANTABILITY or FITNESS FOR A
   * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
   * Redistribution, except as permitted by whichever of the GPL
   * or MNA you select, is prohibited.
   *
   * 1. For the GPL license (GPL), you can redistribute and/or
   * modify this file under the terms of the GNU General
   * Public License, Version 3, as published by the Free Software
   * Foundation.  You should have received a copy of the GNU
   * General Public License, Version 3 along with this program;
   * if not, write to the Free Software Foundation, Inc., 51
   * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
   *
   * 2. For the Magnolia Network Agreement (MNA), this file
   * and the accompanying materials are made available under the
   * terms of the MNA which accompanies this distribution, and
   * is available at http://www.magnolia-cms.com/mna.html
   *
   * Any modifications to this file must keep this entire header
   * intact.
   *
   */
  package info.magnolia.ui.vaadin.gwt.client.magnoliashell.viewport.connector;
  
  import info.magnolia.ui.vaadin.gwt.client.magnoliashell.event.AppRequestedEvent;
  import info.magnolia.ui.vaadin.gwt.client.magnoliashell.event.HideShellAppsEvent;
  import info.magnolia.ui.vaadin.gwt.client.magnoliashell.event.HideShellAppsRequestedEvent;
  import info.magnolia.ui.vaadin.gwt.client.magnoliashell.event.ShellAppRequestedEvent;
  import info.magnolia.ui.vaadin.gwt.client.magnoliashell.event.ShellAppStartedEvent;
  import info.magnolia.ui.vaadin.gwt.client.magnoliashell.event.ShellAppStartingEvent;
  import info.magnolia.ui.vaadin.gwt.client.magnoliashell.event.ShellAppsHiddenEvent;
  import info.magnolia.ui.vaadin.gwt.client.magnoliashell.viewport.ShellAppsTransitionDelegate;
  import info.magnolia.ui.vaadin.gwt.client.magnoliashell.viewport.widget.ShellAppsViewportWidget;
  import info.magnolia.ui.vaadin.gwt.client.shared.magnoliashell.ShellAppType;
  import info.magnolia.ui.vaadin.magnoliashell.viewport.ShellAppsViewport;
  
  import com.google.gwt.user.client.ui.Widget;
  import com.google.web.bindery.event.shared.EventBus;
  import com.vaadin.client.ComponentConnector;
  import com.vaadin.client.Util;
  import com.vaadin.shared.ui.Connect;
  
  /**
   * ShellAppsViewportConnector.
   */
  @Connect(ShellAppsViewport.class)
  public class ShellAppsViewportConnector extends ViewportConnector implements ShellAppsViewportWidget.Listener {
  
      @Override
      protected void init() {
          super.init();
          getWidget().setTransitionDelegate(new ShellAppsTransitionDelegate(getWidget()));
      }
  
      public void showShellApp(ShellAppType type) {
          ComponentConnector shellAppConnector = (ComponentConnector) getState().shellApps.get(type);
          Widget w = shellAppConnector.getWidget();
          getWidget().showChild(w);
          if (!getWidget().isActive()) {
              w.getElement().getStyle().clearOpacity();
              getWidget().setActive(true);
          }
          getLayoutManager().setNeedsMeasure(shellAppConnector);
          eventBus.fireEvent(new ShellAppStartingEvent(type));
      }
  
      @Override
      public void setEventBus(EventBus eventBus) {
          super.setEventBus(eventBus);
          eventBus.addHandler(ShellAppRequestedEvent.TYPE, new ShellAppRequestedEvent.Handler() {
              @Override
              public void onShellAppRequested(ShellAppRequestedEvent event) {
                  if (!getWidget().isActive() || !getConnection().getMessageSender().hasActiveRequest()) {
                      showShellApp(event.getType());
                  }
              }
          });
  
          eventBus.addHandler(HideShellAppsEvent.TYPE, new HideShellAppsEvent.Handler() {
              @Override
              public void onHideShellApps(HideShellAppsEvent event) {
                  getWidget().setActive(false);
              }
          });
  
          eventBus.addHandler(AppRequestedEvent.TYPE, new AppRequestedEvent.Handler() {
              @Override
              public void onAppRequested(AppRequestedEvent event) {
                 getWidget().setActiveNoTransition(false);
             }
         });
     }
 
     @Override
     public ShellAppsViewportWidget getWidget() {
         return (ShellAppsViewportWidget)super.getWidget();
     }
 
     @Override
     protected ShellAppsViewportWidget createWidget() {
         return new ShellAppsViewportWidget(this);
     }
 
     @Override
     public ShellAppViewportState getState() {
         return (ShellAppViewportState) super.getState();
     }
 
     @Override
     public void onShellAppLoaded(Widget shellAppWidget) {
         ComponentConnector shellAppConnector = Util.findConnectorFor(shellAppWidget);
         eventBus.fireEvent(new ShellAppStartedEvent(getState().getShellAppType(shellAppConnector)));
     }
 
     @Override
     public void outerContentClicked() {
         eventBus.fireEvent(new HideShellAppsRequestedEvent());
     }
 
     @Override
     public void onShellAppsHidden() {
         eventBus.fireEvent(new ShellAppsHiddenEvent());
     }
 
 }