/*
    * $Id: BaseControlTag.java 130 2004-11-28 13:00:44Z josem $
    *
    * Tarsis
    * Copyright (C) 2002 Talika Open Source Group
    *
    * This program is free software; you can redistribute it and/or modify
    * it under the terms of the GNU General Public License as published by
    * the Free Software Foundation; either version 2 of the License, or
   * (at your option) any later version.
   *
   * This program 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 General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with this program; if not, write to the Free Software
   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   *
   */
  
  package org.talika.tarsis.taglib.form;
  
  /**
   * Base implementation for all form control tags.
   *
   * @author  Jose M. Palomar
   * @version $Revision: 130 $
   */
  public abstract class BaseControlTag extends BaseTag {
  
      // Fields
      /**
       * <code>name</code> attribute.
       */
      private String name;
  
      /**
       * <code>value</code> attribute.
       */
      private String value;
  
      /**
       * <code>disabled</code> attribute.
       */
      private boolean disabled;
  
      /**
       * <code>readonly</code> attribute.
       */
      private boolean readonly;
  
      /**
       * <code>tabindex</code> attribute.
       */
      private String tabindex;
  
      /**
       * <code>accesskey</code> attribute.
       */
      private String accesskey;
  
      /**
       * <code>onfocus</code> attribute.
       */
      private String onfocus;
  
      /**
       * <code>onblur</code> attribute.
       */
      private String onblur;
  
      /**
       * <code>onselect</code> attribute.
       */
      private String onselect;
  
      /**
       * <code>onchange</code> attribute.
       */
      private String onchange;
  
      // Constructors
      /**
       * Creates a new <code>BaseControlTag</code> object.
       */
      protected BaseControlTag() {
      }
  
      // Renderers
      /**
       * Renders a string with the value of name attribute.
       *
       * @return String a string with the value of name attribute
       */
      public final String controlName() {
  
          StringBuffer atts = new StringBuffer();
 
         if (name != null) {
             atts.append(" name=\"");
             atts.append(name);
             atts.append("\"");
         }
 
         return atts.toString();
     }
 
     /**
      * Renders a string with the value of value attribute.
      *
      * @return String a string with the value of value attribute
      */
     public final String controlValue() {
 
         StringBuffer atts = new StringBuffer();
 
         if (value != null) {
             atts.append(" value=\"");
             atts.append(value);
             atts.append("\"");
         }
 
         return atts.toString();
 
     }
 
     /**
      * Renders a string with values of control attributes.<br>
      * Control attributes are <code>disabled</code>, <code>readonly</code>,
      * <code>accesskey</code> and <code>tabindex</code>.
      *
      * @return String a string with values of control attributes.
      */
     public final String controlAttributes() {
 
         StringBuffer atts = new StringBuffer();
 
         if (disabled) {
             atts.append(" disabled");
         }
 
         if (readonly) {
             atts.append(" readonly");
         }
 
         if (accesskey != null) {
             atts.append(" accesskey=\"");
             atts.append(accesskey);
             atts.append("\"");
         }
 
         if (tabindex != null) {
             atts.append(" tabindex=\"");
             atts.append(tabindex);
             atts.append("\"");
         }
 
         return atts.toString();
 
     }
 
     /**
      * Renders a string with values of control events attributes.<br>
      * Control events attributes are <code>onblur</code>, <code>onchange</code>,
      * <code>onfocus</code> and <code>onselect</code>.
      *
      * @return String a string with values of control events attributes.
      */
     public final String controlEvents() {
 
         StringBuffer events = new StringBuffer();
 
         if (onblur != null) {
             events.append(" onblur=\"");
             events.append(onblur);
             events.append("\"");
         }
 
         if (onchange != null) {
             events.append(" onchange=\"");
             events.append(onchange);
             events.append("\"");
         }
 
         if (onfocus != null) {
             events.append(" onfocus=\"");
             events.append(onfocus);
             events.append("\"");
         }
 
         if (onselect != null) {
             events.append(" onselect=\"");
             events.append(onselect);
             events.append("\"");
         }
 
         return events.toString();
 
     }
 
     // Attributes
     /**
      * Sets <code>name</code> attribute value.
      *
      * @param name String <code>name</code> attribute value.
      */
     public final void setName(String name) {
         this.name = name;
     }
 
     /**
      * Sets <code>value</code> attribute value.
      *
      * @param value String <code>value</code> attribute value.
      */
     public final void setValue(String value) {
         this.value = value;
     }
 
     /**
      * Sets <code>disabled</code> attribute value.
      *
      * @param disabled String <code>disabled</code> attribute value.
      */
     public final void setDisabled(String disabled) {
         this.disabled = disabled.equalsIgnoreCase("true");
     }
 
     /**
      * Sets <code>readonly</code> attribute value.
      *
      * @param readonly String <code>readonly</code> attribute value.
      */
     public final void setReadonly(String readonly) {
         this.readonly = readonly.equalsIgnoreCase("true");
     }
 
     /**
      * Sets <code>accesskey</code> attribute value.
      *
      * @param accesskey String <code>accesskey</code> attribute value.
      */
     public final void setAccesskey(String accesskey) {
         this.accesskey = accesskey;
     }
 
     /**
      * Sets <code>tabindex</code> attribute value.
      *
      * @param tabindex String <code>tabindex</code> attribute value.
      */
     public final void setTabindex(String tabindex) {
         this.tabindex = tabindex;
     }
 
     /**
      * Sets <code>onblur</code> attribute value.
      *
      * @param onblur String <code>onblur</code> attribute value.
      */
     public final void setOnblur(String onblur) {
         this.onblur = onblur;
     }
 
     /**
      * Sets <code>onchange</code> attribute value.
      *
      * @param onchange String <code>onchange</code> attribute value.
      */
     public final void setOnchange(String onchange) {
         this.onchange = onchange;
     }
 
     /**
      * Sets <code>onfocus</code> attribute value.
      *
      * @param onfocus String <code>onfocus</code> attribute value.
      */
     public final void setOnfocus(String onfocus) {
         this.onfocus = onfocus;
     }
 
     /**
      * Sets <code>onselect</code> attribute value.
      *
      * @param onselect String <code>onselect</code> attribute value.
      */
     public final void setOnselect(String onselect) {
         this.onselect = onselect;
     }
 
     /**
      * Called on a Tag handler to release state.
      *
      * @see javax.servlet.jsp.tagext.Tag#release()
      */
     public void release() {
 
         super.release();
 
         this.name = null;
         this.value = null;
         this.disabled = false;
         this.readonly = false;
         this.accesskey = null;
         this.tabindex = null;
 
         this.onblur = null;
         this.onchange = null;
         this.onfocus = null;
         this.onselect = null;
 
     }
 
 }