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.editprovider.client;
  
  import org.opencms.gwt.client.ui.A_CmsToolbarButton;
  import org.opencms.gwt.client.ui.I_CmsButton;
  import org.opencms.gwt.client.ui.css.I_CmsLayoutBundle;
  import org.opencms.gwt.client.util.CmsStyleVariable;
  
  import com.google.gwt.user.client.ui.RootPanel;
  
  /**
   * The selection button for the direct edit provider.<p>
   *
   * @since 8.0.0
   */
  public class CmsToolbarSelectionButton extends A_CmsToolbarButton<CmsDirectEditToolbarHandler> {
  
      /** The style variable which controls the direct edit button visibility. */
      CmsStyleVariable m_editButtonsVisibility;
  
      /**
       * Constructor.<p>
       *
       * @param handler the container-page handler
       */
      public CmsToolbarSelectionButton(CmsDirectEditToolbarHandler handler) {
  
          super(I_CmsButton.ButtonData.SELECTION, handler);
          addStyleName(I_CmsLayoutBundle.INSTANCE.toolbarCss().toolbarShow());
          m_editButtonsVisibility = new CmsStyleVariable(RootPanel.get());
      }
  
      /**
       * @see org.opencms.gwt.client.ui.I_CmsToolbarButton#onToolbarActivate()
       */
      public void onToolbarActivate() {
  
          // this is never called
      }
  
      /**
       * @see org.opencms.gwt.client.ui.I_CmsToolbarButton#onToolbarClick()
       */
      @Override
      public void onToolbarClick() {
  
          if (areEditButtonsVisible()) {
              setDirectEditButtonsVisible(false);
          } else {
              setDirectEditButtonsVisible(true);
          }
      }
  
      /**
       * @see org.opencms.gwt.client.ui.I_CmsToolbarButton#onToolbarDeactivate()
       */
      public void onToolbarDeactivate() {
  
          // this is never called
      }
  
      /**
       * @see org.opencms.gwt.client.ui.A_CmsToolbarButton#setActive(boolean)
       */
      @Override
      public void setActive(boolean active) {
  
          setDown(active);
          setDirectEditButtonsVisible(active);
      }
  
      /**
       * Sets the visibility of the direct edit buttons.<p>
       *
       * @param visible true if the buttons should be shown
       */
      protected void setDirectEditButtonsVisible(boolean visible) {
  
          m_editButtonsVisibility.setValue(
              visible
              ? I_CmsLayoutBundle.INSTANCE.directEditCss().showButtons()
              : I_CmsLayoutBundle.INSTANCE.directEditCss().hideButtons());
          getHandler().showToolbar(visible);
      }
  
      /**
       * Checks whether the direct edit buttons are visible.<p>
       *
       * @return true if the direct edit buttons are visible
       */
      private boolean areEditButtonsVisible() {
  
          return m_editButtonsVisibility.getValue().equals(
              org.opencms.gwt.client.ui.css.I_CmsLayoutBundle.INSTANCE.directEditCss().showButtons());
      }
  }
  