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.acacia.client.widgets;
  
  import org.opencms.acacia.client.css.I_CmsWidgetsLayoutBundle;
  import org.opencms.gwt.client.ui.input.CmsTextBox;
  
  import com.google.gwt.dom.client.Element;
  import com.google.gwt.event.dom.client.FocusEvent;
  import com.google.gwt.event.dom.client.FocusHandler;
  import com.google.gwt.event.logical.shared.ValueChangeEvent;
  import com.google.gwt.event.logical.shared.ValueChangeHandler;
  import com.google.gwt.event.shared.HandlerRegistration;
  import com.google.gwt.user.client.ui.Composite;
  
  /**
   * Provides a display only widget, for use on a widget dialog.<br>
   * If there is no value in the content xml, the value<br>
   * set in the configuration string of the xsd is shown.<p>
   *
   * */
  public class CmsDisplayWidget extends Composite implements I_CmsEditWidget {
  
      /** Value of the activation. */
      private boolean m_active = true;
  
      /** Default value set in XSD. */
      private String m_default = "";
  
      /** The disabled textbox to show the value. */
      private CmsTextBox m_textbox = new CmsTextBox();
  
      /**
       * Creates a new display widget.<p>
       *
       * @param config The configuration string given from OpenCms XSD.
       */
      public CmsDisplayWidget(String config) {
  
          m_default = config;
          // All composites must call initWidget() in their constructors.
          initWidget(m_textbox);
  
          m_textbox.getTextBoxContainer().addStyleName(
              I_CmsWidgetsLayoutBundle.INSTANCE.widgetCss().displayTextBoxPanel());
          m_textbox.getTextBox().addStyleName(I_CmsWidgetsLayoutBundle.INSTANCE.widgetCss().displayTextBox());
          m_textbox.setReadOnly(true);
      }
  
      /**
       * @see com.google.gwt.event.dom.client.HasFocusHandlers#addFocusHandler(com.google.gwt.event.dom.client.FocusHandler)
       */
      public HandlerRegistration addFocusHandler(FocusHandler handler) {
  
          return addDomHandler(handler, FocusEvent.getType());
      }
  
      /**
       * @see org.opencms.acacia.client.widgets.I_CmsEditWidget#addValueChangeHandler(com.google.gwt.event.logical.shared.ValueChangeHandler)
       */
      public HandlerRegistration addValueChangeHandler(ValueChangeHandler<String> handler) {
  
          return addHandler(handler, ValueChangeEvent.getType());
      }
  
      /**
       * Represents a value change event.<p>
       *
       */
      public void fireChangeEvent() {
  
          String result = "";
          if (m_textbox.getText() != null) {
              if (!m_textbox.getText().equals(m_default)) {
                  result = m_textbox.getText();
              }
          }
  
          ValueChangeEvent.fire(this, result);
  
      }
  
      /**
       * @see com.google.gwt.user.client.ui.HasValue#getValue()
       */
      public String getValue() {
  
          return m_textbox.getText();
      }
  
      /**
       * @see org.opencms.acacia.client.widgets.I_CmsEditWidget#isActive()
       */
      public boolean isActive() {
  
          return m_active;
      }
  
      /**
       * @see org.opencms.acacia.client.widgets.I_CmsEditWidget#onAttachWidget()
       */
      public void onAttachWidget() {
  
          super.onAttach();
      }
  
      /**
       * @see org.opencms.acacia.client.widgets.I_CmsEditWidget#owns(com.google.gwt.dom.client.Element)
       */
      public boolean owns(Element element) {
  
          // TODO implement this in case we want the delete behavior for optional fields
          return false;
  
      }
  
      /**
       * @see org.opencms.acacia.client.widgets.I_CmsEditWidget#setActive(boolean)
       */
      public void setActive(boolean active) {
  
          // check if the value has changed. If there is no change do nothing.
          if (m_active == active) {
              return;
          }
          m_textbox.setEnabled(active);
          m_active = active;
          if (active) {
              fireChangeEvent();
          }
      }
  
      /**
       * Sets the color for the input box.<p>
       *
       * @param color the color that should be set
       * */
      public void setColor(String color) {
  
          m_textbox.getTextBox().getElement().getStyle().setColor(color);
      }
  
      /**
       * @see org.opencms.acacia.client.widgets.I_CmsEditWidget#setName(java.lang.String)
       */
      public void setName(String name) {
  
          // no input field so nothing to do
  
      }
  
      /**
       * @see com.google.gwt.user.client.ui.HasValue#setValue(java.lang.Object)
       */
      public void setValue(String value) {
  
          setValue(value, false);
      }
  
      /**
       * @see com.google.gwt.user.client.ui.HasValue#setValue(java.lang.Object, boolean)
       */
      public void setValue(String value, boolean fireEvents) {
  
          // add the saved value to the display field
          if (value.equals("")) {
              m_textbox.setFormValueAsString(m_default);
          } else {
              m_textbox.setFormValueAsString(value);
          }
          if (fireEvents) {
              fireChangeEvent();
          }
      }
  
  }
  