content: /*
   * This library is part of OpenCms -
   * the Open Source Content Management System
   *
   * Copyright (c) Alkacon Software GmbH & Co. KG (https://www.alkacon.com)
   *
   * This library is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Lesser General Public
   * License as published by the Free Software Foundation; either
   * version 2.1 of the License, or (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
   * Lesser General Public License for more details.
   *
   * For further information about Alkacon Software, please see the
   * company website: https://www.alkacon.com
   *
   * For further information about OpenCms, please see the
   * project website: https://www.opencms.org
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   */
  
  package org.opencms.ade.containerpage.client.ui;
  
  import org.opencms.gwt.client.dnd.I_CmsDragHandle;
  import org.opencms.gwt.client.dnd.I_CmsDraggable;
  import org.opencms.gwt.client.ui.CmsPushButton;
  import org.opencms.gwt.client.ui.I_CmsButton.ButtonStyle;
  
  import com.google.gwt.user.client.Event;
  
  /**
   * An optional container element button.<p>
   *
   * @since 8.0.0
   */
  public class CmsElementOptionButton extends CmsPushButton implements I_CmsDragHandle {
  
      /** The associated container element. */
      private CmsContainerPageElementPanel m_dragElement;
  
      /** The associated tool-bar button. */
      private A_CmsToolbarOptionButton m_toolbarButton;
  
      /**
       * Constructor.<p>
       *
       * @param toolbarButton the tool-bar button associated with this button, providing all necessary information
       * @param element the element to create this button for
       */
      public CmsElementOptionButton(A_CmsToolbarOptionButton toolbarButton, CmsContainerPageElementPanel element) {
  
          super();
          setImageClass(toolbarButton.getButtonData().getSmallIconClass());
          setButtonStyle(ButtonStyle.FONT_ICON, null);
          setTitle(toolbarButton.getTitle());
          m_toolbarButton = toolbarButton;
          m_dragElement = element;
      }
  
      /**
       * Returns the dragElement.<p>
       *
       * @return the dragElement
       */
      public CmsContainerPageElementPanel getContainerElement() {
  
          return m_dragElement;
      }
  
      /**
       * @see org.opencms.gwt.client.dnd.I_CmsDragHandle#getDraggable()
       */
      public I_CmsDraggable getDraggable() {
  
          return m_dragElement;
      }
  
      /**
       * Returns the associated tool-bar button.<p>
       *
       * @return the associated tool-bar button
       */
      public A_CmsToolbarOptionButton getToolbarButton() {
  
          return m_toolbarButton;
      }
  
      /**
       * @see org.opencms.gwt.client.ui.CmsPushButton#onBrowserEvent(com.google.gwt.user.client.Event)
       */
      @Override
      public void onBrowserEvent(Event event) {
  
          /* This is to prevent click events from leaking out to the surrounding container element.
           * We can't just use preventDefault in the click handler itself, since the GWT button widget class does
           * some magic related to event handling (it ignores the initial click event, then fires *another* click
           * event when receiving a mouseup event - the click handler doesn't get to see the first event).
           */
          if (event.getTypeInt() == Event.ONCLICK) {
              event.preventDefault();
              event.stopPropagation();
          }
          super.onBrowserEvent(event);
      }
  }
  