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1   /**
2    * This file Copyright (c) 2019 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.contentapp.action;
35  
36  import info.magnolia.ui.api.action.ActionExecutionException;
37  import info.magnolia.ui.contentapp.browser.context.ValueContext;
38  import info.magnolia.ui.CloseHandler;
39  import info.magnolia.ui.framework.databinding.view.EditorView;
40  
41  import java.util.Iterator;
42  import java.util.List;
43  
44  import javax.inject.Inject;
45  
46  import com.vaadin.data.BinderValidationStatus;
47  import com.vaadin.data.BindingValidationStatus;
48  import com.vaadin.ui.Component;
49  
50  /**
51   * Save the form view present in the context.
52   */
53  public class CommitAction<T> extends CloseAction {
54  
55      private final ValueContext<T> valueContext;
56      private final EditorView<T> form;
57  
58      @Inject
59      public CommitAction(CommitActionDefinition definition, CloseHandler closeHandler, ValueContext valueContext, EditorView form) {
60          super(definition, closeHandler);
61          this.valueContext = valueContext;
62          this.form = form;
63      }
64  
65      @Override
66      public void execute() throws ActionExecutionException {
67          List<BinderValidationStatus<?>> validationStatuses = form.validate();
68          if (validationStatuses.stream()
69                  .filter(BinderValidationStatus::hasErrors).findFirst()
70                  .map(BinderValidationStatus::getFieldValidationErrors).map(List::iterator).filter(Iterator::hasNext).map(Iterator::next)
71                  .map(BindingValidationStatus::getField) // get the first field with error
72                  .map(Component.class::cast).map(Component::getParent) // get field layout of field to try focus it (see FieldLayout::focus)
73                  .filter(Component.Focusable.class::isInstance).map(Component.Focusable.class::cast)
74                  .map(field -> {
75                      field.focus();
76                      return true;
77                  })
78                  .orElse(false)) {
79              return;
80          }
81  
82          valueContext.getSingle().ifPresent(t -> {
83              form.write(t);
84              valueContext.set(t);
85          });
86          super.execute();
87      }
88  }