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1   /**
2    * This file Copyright (c) 2010-2016 Magnolia International
3    * Ltd.  (http://www.magnolia-cms.com). All rights reserved.
4    *
5    *
6    * This file is dual-licensed under both the Magnolia
7    * Network Agreement and the GNU General Public License.
8    * You may elect to use one or the other of these licenses.
9    *
10   * This file is distributed in the hope that it will be
11   * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
12   * implied warranty of MERCHANTABILITY or FITNESS FOR A
13   * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
14   * Redistribution, except as permitted by whichever of the GPL
15   * or MNA you select, is prohibited.
16   *
17   * 1. For the GPL license (GPL), you can redistribute and/or
18   * modify this file under the terms of the GNU General
19   * Public License, Version 3, as published by the Free Software
20   * Foundation.  You should have received a copy of the GNU
21   * General Public License, Version 3 along with this program;
22   * if not, write to the Free Software Foundation, Inc., 51
23   * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
24   *
25   * 2. For the Magnolia Network Agreement (MNA), this file
26   * and the accompanying materials are made available under the
27   * terms of the MNA which accompanies this distribution, and
28   * is available at http://www.magnolia-cms.com/mna.html
29   *
30   * Any modifications to this file must keep this entire header
31   * intact.
32   *
33   */
34  package info.magnolia.ui.vaadin.magnoliashell.viewport;
35  
36  import info.magnolia.ui.api.view.View;
37  import info.magnolia.ui.api.view.Viewport;
38  import info.magnolia.ui.vaadin.gwt.client.magnoliashell.viewport.connector.ViewportState;
39  import info.magnolia.ui.vaadin.magnoliashell.DeckLayout;
40  
41  import com.vaadin.ui.Component;
42  
43  /**
44   * The server side implementation of the shell viewport. MagnoliaShell is capable of holding of such for the shell apps,
45   * one - for the regular apps.
46   */
47  public class ShellViewport extends DeckLayout implements Viewport {
48  
49      private View view;
50  
51      public ShellViewport() {
52          setSizeFull();
53      }
54  
55      @Override
56      public void setView(final View view) {
57          if (view != null) {
58              this.view = view;
59              display(this.view.asVaadinComponent());
60          } else {
61              super.pop();
62              getState().activeComponent = null;
63          }
64      }
65  
66      @Override
67      public void display(Component content) {
68          getState().activeComponent = content;
69          super.display(content);
70      }
71  
72      @Override
73      protected ViewportState getState(boolean markAsDirty) {
74          return (ViewportState) super.getState(markAsDirty);
75      }
76  
77      @Override
78      protected ViewportState getState() {
79          return (ViewportState) super.getState();
80      }
81      
82      @Override
83      public void beforeClientResponse(boolean initial) {
84          super.beforeClientResponse(initial);
85          if (initial && getState().activeComponent != null) {
86              display((Component)getState().activeComponent);
87          }
88      }
89  }