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1   /**
2    * This file Copyright (c) 2013-2018 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.gwt.client.editor.event;
35  
36  import info.magnolia.ui.vaadin.gwt.client.shared.ComponentElement;
37  
38  import com.google.gwt.event.shared.EventHandler;
39  import com.google.gwt.event.shared.GwtEvent;
40  
41  /**
42   * Event used to notify the system, that a move has started. Not used for DnD events.
43   * Initiated by a client side move, when clicking on the move button on the {@link info.magnolia.ui.vaadin.gwt.client.widget.controlbar.ComponentBar}.
44   * The event will cause a server round trip to notify the server which will in return start the move on client side.
45   *
46   * @see info.magnolia.ui.vaadin.gwt.client.rpc.PageEditorClientRpc
47   * <pre>
48   *  <ul>
49   *      <li>fired by {@link info.magnolia.ui.vaadin.gwt.client.editor.dom.MgnlComponent#onMoveStart(boolean)}</li>
50   *      <li>handled by {@link info.magnolia.ui.vaadin.gwt.client.connector.PageEditorConnector}</li>
51   *  </ul>
52   * </pre>
53   */
54  public class ComponentStartMoveEvent extends GwtEvent<ComponentStartMoveEvent.CompnentStartMoveEventHandler> {
55  
56      public static Type<CompnentStartMoveEventHandler> TYPE = new Type<CompnentStartMoveEventHandler>();
57      private ComponentElement componentElement;
58  
59      public ComponentStartMoveEvent(ComponentElement componentElement) {
60          this.componentElement = componentElement;
61      }
62  
63      @Override
64      public Type<CompnentStartMoveEventHandler> getAssociatedType() {
65          return TYPE;
66      }
67  
68      @Override
69      protected void dispatch(CompnentStartMoveEventHandler handler) {
70          handler.onStart(this);
71      }
72  
73      public ComponentElement getComponentElement() {
74          return componentElement;
75      }
76  
77      /**
78       * Handler for {@link ComponentStartMoveEvent}.
79       */
80      public static interface CompnentStartMoveEventHandler extends EventHandler {
81          void onStart(ComponentStartMoveEvent componentStartMoveEvent);
82      }
83  }