/*
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF licenses this file
    * to you 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
    *
   *   http://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 javax.faces.component.html;
  
  import javax.faces.component.UIInput;
  import javax.faces.context.FacesContext;
  
  import org.apache.myfaces.buildtools.maven2.plugin.builder.annotation.JSFComponent;
  import org.apache.myfaces.buildtools.maven2.plugin.builder.annotation.JSFProperty;
  
  /**
   * Renders a HTML input element.
   *
   */
  @JSFComponent
  (name = "h:inputFile",
  clazz = "javax.faces.component.html.HtmlInputFile",template=true,
  tagClass = "org.apache.myfaces.taglib.html.HtmlInputFileTag",
  defaultRendererType = "javax.faces.File",
  implementz = "javax.faces.component.behavior.ClientBehaviorHolder",
  defaultEventName = "valueChange"
  )
  abstract class _HtmlInputFile extends UIInput implements _AccesskeyProperty,
      _AltProperty, _UniversalProperties, _DisabledReadonlyProperties,
      _FocusBlurProperties, _ChangeProperty, _SelectProperty,
      _EventProperties, _StyleProperties, _TabindexProperty, _LabelProperty,
      _RoleProperty
  {
  
    static public final String COMPONENT_FAMILY =
      "javax.faces.Input";
    static public final String COMPONENT_TYPE =
      "javax.faces.HtmlInputFile";
  
    /**
     * HTML: The maximum number of characters allowed to be entered.
     * 
     * @JSFProperty
     *   defaultValue = "Integer.MIN_VALUE"
     */
    public abstract int getMaxlength();
  
    /**
     * HTML: The initial width of this control, in characters.
     * 
     * @JSFProperty
     *   defaultValue = "Integer.MIN_VALUE"
     */
    public abstract int getSize();
  
    /**
     * If the value of this attribute is "off", render "off" as the value of the attribute.
     * This indicates that the browser should disable its autocomplete feature for this component.
     * This is useful for components that perform autocompletion and do not want the browser interfering.
     * If this attribute is not set or the value is "on", render nothing.
     *
     * @return  the new autocomplete value
     */
    @JSFProperty
    public abstract String getAutocomplete();
  
      protected void validateValue(FacesContext context, Object convertedValue)
      {
          if (!isValid())
          {
              return;
          }
  
          // If our value is empty, check the required property
          boolean isEmpty = isEmptyValue(convertedValue); 
  
          if (isRequired() && isEmpty)
          {
              if (getRequiredMessage() != null)
              {
                  String requiredMessage = getRequiredMessage();
                  context.addMessage(this.getClientId(context), new javax.faces.application.FacesMessage(
                          javax.faces.application.FacesMessage.SEVERITY_ERROR,
                      requiredMessage, requiredMessage));
              }
              else
              {
                  _MessageUtils.addErrorMessage(context, this, REQUIRED_MESSAGE_ID,
                     new Object[] { _MessageUtils.getLabel(context, this) });
             }
             setValid(false);
             return;
         }
 
         if (!isEmpty)
         {
             super.validateValue(context, convertedValue);
         }
     }
     
     private static boolean isEmptyValue(Object value)
     {
         if (value == null)
         {
             return true;
         }
         else if (value instanceof String)
         {
             if ( ((String)value).trim().length() <= 0 )
             {
                 return true;
             }
         }
         else if (value instanceof java.util.Collection)
         {
             if ( ((java.util.Collection)value).isEmpty())
             {
                 return true;
             }
         }
         else if (value.getClass().isArray())
         {
             if (java.lang.reflect.Array.getLength(value) <= 0)
             {
                 return true;
             }
         }
         else if (value instanceof java.util.Map)
         {
             if ( ((java.util.Map)value).isEmpty())
             {
                 return true;
             }
         }
         else if (value instanceof javax.servlet.http.Part) 
         {
             if (((javax.servlet.http.Part)value).getSize() <= 0) 
             {
                 return true;
             }
         }
         return false;
     }
 
 }