content: /*
   * This library is part of OpenCms -
   * the Open Source Content Management System
   *
   * Copyright (C) Alkacon Software (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.ade.containerpage.client.Messages;
  import org.opencms.gwt.client.ui.CmsListItem;
  import org.opencms.gwt.client.ui.CmsListItemWidget;
  import org.opencms.gwt.client.ui.CmsPopup;
  import org.opencms.gwt.client.ui.CmsPushButton;
  import org.opencms.gwt.client.ui.I_CmsButton.ButtonColor;
  import org.opencms.gwt.client.ui.I_CmsButton.ButtonStyle;
  import org.opencms.gwt.client.ui.input.CmsCheckBox;
  import org.opencms.gwt.shared.CmsListInfoBean;
  
  import java.util.Arrays;
  import java.util.List;
  
  import com.google.gwt.core.client.GWT;
  import com.google.gwt.event.dom.client.ClickEvent;
  import com.google.gwt.event.logical.shared.ValueChangeEvent;
  import com.google.gwt.uibinder.client.UiBinder;
  import com.google.gwt.uibinder.client.UiField;
  import com.google.gwt.uibinder.client.UiHandler;
  import com.google.gwt.user.client.rpc.AsyncCallback;
  import com.google.gwt.user.client.ui.Composite;
  import com.google.gwt.user.client.ui.Label;
  import com.google.gwt.user.client.ui.Panel;
  
  /**
   * Widget for asking the user for confirmation whether a container page element should be removed.<p>
   */
  public class CmsConfirmRemoveWidget extends Composite {
  
      /**
       * Interface with message string constants.<p>
       */
      public static class MessageStrings {
  
          /**
           * Message string provider.<p>
           *
           * @return a message string
           */
          public static String cancel() {
  
              return org.opencms.gwt.client.Messages.get().key(org.opencms.gwt.client.Messages.GUI_CANCEL_0);
          }
  
          /**
           * Message string provider.<p>
           *
           * @return a message string
           */
          public static String caption() {
  
              return Messages.get().key(Messages.GUI_CONFIRM_REMOVAL_CAPTION_0);
          }
  
          /**
           * Message string provider.<p>
           *
           * @return a message string
           */
          public static String checkboxText() {
  
              return Messages.get().key(Messages.GUI_CONFIRM_REMOVAL_DELETE_CHECKBOX_0);
          }
  
          /**
           * Message string provider.<p>
           *
           * @return a message string
           */
          public static String confirmText() {
  
              return Messages.get().key(Messages.GUI_CONFIRM_REMOVAL_TEXT_0);
          }
  
          /**
           * Message string provider.<p>
           *
           * @return a message string
           */
          public static String noReferenceText() {
  
              return Messages.get().key(Messages.GUI_CONFIRM_REMOVAL_CAN_DELETE_0);
          }
  
          /**
           * Message string provider.<p>
           *
           * @return a message string
           */
          public static String ok() {
  
              return org.opencms.gwt.client.Messages.get().key(org.opencms.gwt.client.Messages.GUI_OK_0);
          }
      }
  
      /**
       * UiBinder interface for this dialog.<p>
       */
      interface I_UiBinder extends UiBinder<Panel, CmsConfirmRemoveWidget> {
          // empty uibinder interface
      }
  
      /** UiBinder instance for this dialog. */
      private static I_UiBinder uibinder = GWT.create(I_UiBinder.class);
  
      /** The Cancel button. */
      @UiField
      protected CmsPushButton m_cancelButton;
  
      /** Checkbox for selecting whether the resource should be deleted. */
      @UiField
      protected CmsCheckBox m_checkBox;
  
      /** True if this dialog has a checkbox for deleting the resource. */
      protected boolean m_hasDeleteCheckbox;
  
      /** The widget containing the element info box. */
      @UiField
      protected Panel m_infoBoxContainer;
  
      /** The label with the dialog text. */
      @UiField
      protected Label m_mainLabel;
  
      /** The label which appears when the user is given the option to delete the resource. */
      @UiField
      protected Label m_noReferenceLabel;
  
      /** The OK button. */
      @UiField
      protected CmsPushButton m_okButton;
  
      /**
       * The callback which will be called when the user has confirmed or cancelled the element removal.<p>
       */
      protected AsyncCallback<Boolean> m_removeCallback;
  
      /** True if the resource should be deleted. */
      boolean m_deleteContent;
  
      /** The dialog instance which this widget appears in. */
      private CmsPopup m_popup;
  
      /**
       * Creates a new instance.<p>
       *
       * @param elementInfo the element info bean
       * @param canDelete true if the user should be given the option to delete the resource
       * @param removeCallback the callback to execute after the dialog closes
       */
      public CmsConfirmRemoveWidget(
          CmsListInfoBean elementInfo,
          boolean canDelete,
          AsyncCallback<Boolean> removeCallback) {
  
          m_removeCallback = removeCallback;
          initWidget(uibinder.createAndBindUi(this));
          CmsListItemWidget itemWidget = new CmsListItemWidget(elementInfo);
          CmsListItem item = new CmsListItem(itemWidget);
          m_infoBoxContainer.add(item);
          m_okButton.setButtonStyle(ButtonStyle.TEXT, ButtonColor.RED);
          if (canDelete) {
              m_checkBox.setVisible(true);
              m_checkBox.setChecked(true);
              m_deleteContent = true;
              m_noReferenceLabel.setVisible(true);
          }
      }
  
      /**
       * Gets the buttons for the dialog.<p>
       *
       * @return the buttons for the dialog
       */
      public List<CmsPushButton> getButtons() {
  
          return Arrays.asList(m_cancelButton, m_okButton);
      }
  
      /**
       * The click handler for the cancel button.<p>
       *
       * @param event the click event
       */
      @UiHandler("m_cancelButton")
      public void onClickCancel(ClickEvent event) {
  
          m_popup.hide();
          m_removeCallback.onFailure(null);
      }
  
      /**
       * The click handler for the OK button.<p>
       *
       * @param event the click event
       */
      @UiHandler("m_okButton")
      public void onClickOk(ClickEvent event) {
  
          m_removeCallback.onSuccess(Boolean.valueOf(m_deleteContent));
          m_popup.hide();
      }
  
      /**
       * Value change handler for the 'delete' checkbox.<p>
       *
       * @param event the value change event
       */
      @UiHandler("m_checkBox")
      public void onValueChange(ValueChangeEvent<Boolean> event) {
  
          m_deleteContent = event.getValue().booleanValue();
      }
  
      /**
       * Sets the popup which this widget is used in.<p>
       *
       * @param popup the popup
       */
      public void setPopup(CmsPopup popup) {
  
          m_popup = popup;
      }
  
  }
  