/*
    * Copyright (c) 2002-2025 Gargoyle Software Inc.
    *
    * Licensed under the Apache License, Version 2.0 (the "License");
    * you may not use this file except in compliance with the License.
    * You may obtain a copy of the License at
    * https://www.apache.org/licenses/LICENSE-2.0
    *
    * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package org.htmlunit.html;
  
  import java.util.Map;
  
  import org.htmlunit.SgmlPage;
  import org.htmlunit.html.impl.Color;
  import org.htmlunit.util.StringUtils;
  
  /**
   * Wrapper for the HTML element "input" where type is "color".
   *
   * @author Ahmed Ashour
   * @author Ronald Brill
   * @author Frank Danek
   */
  public class HtmlColorInput extends HtmlInput implements LabelableElement {
  
      /**
       * Creates an instance.
       *
       * @param qualifiedName the qualified name of the element type to instantiate
       * @param page the page that contains this element
       * @param attributes the initial attributes
       */
      HtmlColorInput(final String qualifiedName, final SgmlPage page,
              final Map<String, DomAttr> attributes) {
          super(qualifiedName, page, attributes);
          if (getValueAttribute() == ATTRIBUTE_NOT_DEFINED) {
              setValue("#000000");
          }
      }
  
      /**
       * {@inheritDoc}
       */
      @Override
      public void setDefaultChecked(final boolean defaultChecked) {
          // Empty.
      }
  
      /**
       * {@inheritDoc}
       */
      @Override
      public void setValue(final String newValue) {
          if (StringUtils.isEmptyOrNull(newValue)) {
              super.setValue("#000000");
              return;
          }
  
          if (isValid(newValue)) {
              super.setValue(newValue);
          }
      }
  
      @Override
      protected void valueAttributeChanged(final String attributeValue, final boolean isValueDirty) {
          if (isValueDirty) {
              return;
          }
  
          if (StringUtils.isEmptyOrNull(attributeValue)) {
              setRawValue("#000000");
              return;
          }
  
          if (isValid(attributeValue)) {
              setRawValue(attributeValue);
          }
      }
  
      private static boolean isValid(final String value) {
          boolean valid = false;
          if (value.length() == 7 && value.charAt(0) == '#') {
              try {
                  new Color(
                          Integer.valueOf(value.substring(1, 3), 16),
                          Integer.valueOf(value.substring(3, 5), 16),
                          Integer.valueOf(value.substring(5, 7), 16));
                  valid = true;
              }
              catch (final IllegalArgumentException ignored) {
                  // ignore
              }
          }
         return valid;
     }
 
     /**
      * {@inheritDoc}
      */
     @Override
     protected boolean isRequiredSupported() {
         return false;
     }
 }