franta-hg@1: /* ================================================================
franta-hg@1:  * Cewolf : Chart enabling Web Objects Framework
franta-hg@1:  * ================================================================
franta-hg@1:  *
franta-hg@1:  * Project Info:  http://cewolf.sourceforge.net
franta-hg@1:  * Project Lead:  Guido Laures (guido@laures.de);
franta-hg@1:  *
franta-hg@1:  * (C) Copyright 2002, by Guido Laures
franta-hg@1:  *
franta-hg@1:  * This library is free software; you can redistribute it and/or modify it under the terms
franta-hg@1:  * of the GNU Lesser General Public License as published by the Free Software Foundation;
franta-hg@1:  * either version 2.1 of
franta-hg@1:  * the License, or (at your option) any later version.
franta-hg@1:  *
franta-hg@1:  * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
franta-hg@1:  * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
franta-hg@1:  * See the GNU Lesser General Public License for more details.
franta-hg@1:  *
franta-hg@1:  * You should have received a copy of the GNU Lesser General Public License along with this
franta-hg@1:  * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
franta-hg@1:  * Boston, MA 02111-1307, USA.
franta-hg@1:  */
franta-hg@1: 
franta-hg@1: package de.laures.cewolf.taglib.html;
franta-hg@1: 
franta-hg@1: import java.io.IOException;
franta-hg@1: import java.io.Serializable;
franta-hg@1: import java.io.Writer;
franta-hg@1: 
franta-hg@1: import javax.servlet.jsp.JspException;
franta-hg@1: import javax.servlet.jsp.JspWriter;
franta-hg@1: 
franta-hg@1: import de.laures.cewolf.taglib.tags.CewolfBodyTag;
franta-hg@1: 
franta-hg@1: /**
franta-hg@1:  * Abstract base class which holds attribbutes common for all HTML 4.0 tags.
franta-hg@1:  * @author  Guido Laures
franta-hg@1:  */
franta-hg@1: public abstract class AbstractHTMLBaseTag extends CewolfBodyTag implements Serializable{
franta-hg@1:     
franta-hg@1:     protected static final int UNDEFINED_INT = -1;
franta-hg@1:     protected static final float UNDEFINED_FLOAT = -1.0f;
franta-hg@1:     protected static final String UNDEFINED_STR = null;
franta-hg@1:     
franta-hg@1:     /** Holds value of property ID. */
franta-hg@1:     protected String id = UNDEFINED_STR;
franta-hg@1:     
franta-hg@1:     /** Holds value of property clazz. */
franta-hg@1:     protected String clazz = UNDEFINED_STR;
franta-hg@1:     
franta-hg@1:     /** Holds value of property style. */
franta-hg@1:     protected String style = UNDEFINED_STR;
franta-hg@1:     
franta-hg@1:     /** Holds value of property title. */
franta-hg@1:     protected String title = UNDEFINED_STR;
franta-hg@1:     
franta-hg@1:     /** Holds value of property lang. */
franta-hg@1:     protected String lang = UNDEFINED_STR;
franta-hg@1:     
franta-hg@1:     /** Holds value of property dir. */
franta-hg@1:     protected String dir = UNDEFINED_STR;
franta-hg@1:     
franta-hg@1:     /** Holds value of property onclick. */
franta-hg@1:     protected String onclick = UNDEFINED_STR;
franta-hg@1:     
franta-hg@1:     /** Holds value of property ondbclick. */
franta-hg@1:     protected String ondbclick = UNDEFINED_STR;
franta-hg@1:     
franta-hg@1:     /** Holds value of property onmousedown. */
franta-hg@1:     protected String onmousedown = UNDEFINED_STR;
franta-hg@1:     
franta-hg@1:     /** Holds value of property onmouseup. */
franta-hg@1:     protected String onmouseup = UNDEFINED_STR;
franta-hg@1:     
franta-hg@1:     /** Holds value of property onmouseover. */
franta-hg@1:     protected String onmouseover = UNDEFINED_STR;
franta-hg@1:     
franta-hg@1:     /** Holds value of property onmousemove. */
franta-hg@1:     protected String onmousemove = UNDEFINED_STR;
franta-hg@1:     
franta-hg@1:     /** Holds value of property onmouseout. */
franta-hg@1:     protected String onmouseout = UNDEFINED_STR;
franta-hg@1:     
franta-hg@1:     /** Holds value of property onkeypress. */
franta-hg@1:     protected String onkeypress = UNDEFINED_STR;
franta-hg@1:     
franta-hg@1:     /** Holds value of property onkeydown. */
franta-hg@1:     protected String onkeydown = UNDEFINED_STR;
franta-hg@1:     
franta-hg@1:     /** Holds value of property onkeyup. */
franta-hg@1:     protected String onkeyup = UNDEFINED_STR;
franta-hg@1:     
franta-hg@1:     public AbstractHTMLBaseTag(){
franta-hg@1:     	setId(UNDEFINED_STR);
franta-hg@1:     }
franta-hg@1:     
franta-hg@1:     protected abstract String getTagName();
franta-hg@1:     
franta-hg@1:     protected abstract boolean hasBody();
franta-hg@1:     
franta-hg@1:     protected abstract boolean wellFormed();
franta-hg@1:     
franta-hg@1:     protected void reset(){
franta-hg@1:         this.clazz = UNDEFINED_STR;
franta-hg@1:         this.dir = UNDEFINED_STR;
franta-hg@1:         this.id = UNDEFINED_STR;
franta-hg@1:         this.lang = UNDEFINED_STR;
franta-hg@1:         this.onclick = UNDEFINED_STR;
franta-hg@1:         this.ondbclick = UNDEFINED_STR;
franta-hg@1:         this.onkeydown = UNDEFINED_STR;
franta-hg@1:         this.onkeypress = UNDEFINED_STR;
franta-hg@1:         this.onkeyup = UNDEFINED_STR;
franta-hg@1:         this.onmousedown = UNDEFINED_STR;
franta-hg@1:         this.onmousemove = UNDEFINED_STR;
franta-hg@1:         this.onmouseout = UNDEFINED_STR;
franta-hg@1:         this.onmouseover = UNDEFINED_STR;
franta-hg@1:         this.onmouseup = UNDEFINED_STR;
franta-hg@1:         this.style = UNDEFINED_STR;
franta-hg@1:         this.title = UNDEFINED_STR;
franta-hg@1:     }
franta-hg@1:     
franta-hg@1:     public int doStartTag() throws JspException {
franta-hg@1:         JspWriter writer = pageContext.getOut();
franta-hg@1:         try {
franta-hg@1:             writer.write("<" + getTagName());
franta-hg@1:             writeAttributes(writer);
franta-hg@1:             if(hasBody()){
franta-hg@1:                 writer.write(">");
franta-hg@1:                 return EVAL_PAGE;
franta-hg@1:             } else {
franta-hg@1:                 return SKIP_BODY;
franta-hg@1:             }
franta-hg@1:         } catch(IOException ioe){
franta-hg@1:         	super.pageContext.getServletContext().log("",ioe);
franta-hg@1:             throw new JspException(ioe.getMessage());
franta-hg@1:         }
franta-hg@1:     }
franta-hg@1:     
franta-hg@1:     public int doEndTag() throws JspException {
franta-hg@1:         JspWriter writer = pageContext.getOut();
franta-hg@1:         try{
franta-hg@1:             if(hasBody()){
franta-hg@1:                 writer.write("</" + getTagName() + ">");
franta-hg@1:             } else {
franta-hg@1:                 if(wellFormed()){
franta-hg@1:                     writer.write(" /");
franta-hg@1:                 }
franta-hg@1:                 writer.write(">");
franta-hg@1:             }
franta-hg@1:             return doAfterEndTag(EVAL_PAGE);
franta-hg@1:         } catch(IOException ioe){
franta-hg@1:         	super.pageContext.getServletContext().log("",ioe);
franta-hg@1:             throw new JspException(ioe.getMessage());
franta-hg@1:         }
franta-hg@1:     }
franta-hg@1:     
franta-hg@1:     public void writeAttributes(Writer wr){
franta-hg@1:         try {
franta-hg@1:             appendAttributeDeclaration(wr, getId(), "ID");
franta-hg@1:             appendAttributeDeclaration(wr, this.clazz, "CLASS");
franta-hg@1:             appendAttributeDeclaration(wr, this.style, "STYLE");
franta-hg@1:             appendAttributeDeclaration(wr, this.onclick, "ONCLICK");
franta-hg@1:             appendAttributeDeclaration(wr, this.ondbclick, "ONDBCLICK");
franta-hg@1:             appendAttributeDeclaration(wr, this.onkeydown, "ONKEYDOWN");
franta-hg@1:             appendAttributeDeclaration(wr, this.onkeypress, "ONKEYPRESS");
franta-hg@1:             appendAttributeDeclaration(wr, this.onkeyup, "ONKEYUP");
franta-hg@1:             appendAttributeDeclaration(wr, this.onmousedown, "ONMOUSEDOWN");
franta-hg@1:             appendAttributeDeclaration(wr, this.onmousemove, "ONMOUSEMOVE");
franta-hg@1:             appendAttributeDeclaration(wr, this.onmouseout, "ONMOUSEOUT");
franta-hg@1:             appendAttributeDeclaration(wr, this.onmouseover, "ONMOUSEOVER");
franta-hg@1:             appendAttributeDeclaration(wr, this.onmouseup, "ONMOUSEUP");
franta-hg@1:             appendAttributeDeclaration(wr, this.title, "TITLE");
franta-hg@1:             appendAttributeDeclaration(wr, this.lang, "LANG");
franta-hg@1:             appendAttributeDeclaration(wr, this.dir, "DIR");
franta-hg@1:         } catch(IOException ioex){
franta-hg@1:             ioex.printStackTrace();
franta-hg@1:         }
franta-hg@1:     }
franta-hg@1:     
franta-hg@1:     protected void appendAttributeDeclaration(Writer wr, String attr, String name) throws IOException {
franta-hg@1:         if(attr != UNDEFINED_STR){
franta-hg@1:             wr.write(" " + name + "=\"" + attr + "\"");
franta-hg@1:         }
franta-hg@1:     }
franta-hg@1:     
franta-hg@1:     protected void appendAttributeDeclaration(Writer wr, int attr, String name) throws IOException {
franta-hg@1:         // does not call the according method for Strings to avoid additional
franta-hg@1:         // String instantiation
franta-hg@1:         if(attr != UNDEFINED_INT){
franta-hg@1:             wr.write(" " + name + "=\"" + attr + "\"");
franta-hg@1:         }
franta-hg@1:     }
franta-hg@1:     
franta-hg@1:     protected void appendAttributeDeclaration(Writer wr, float attr, String name) throws IOException {
franta-hg@1:         // does not call the according method for Strings to avoid additional
franta-hg@1:         // String instantiation
franta-hg@1:         if(attr != UNDEFINED_FLOAT){
franta-hg@1:             wr.write(" " + name + "=\"" + attr + "\"");
franta-hg@1:         }
franta-hg@1:     }
franta-hg@1:     
franta-hg@1:     /** Setter for property clazz.
franta-hg@1:      * @param clazz New value of property clazz.
franta-hg@1:      */
franta-hg@1:     public void setClass(String clazz) {
franta-hg@1:         this.clazz = clazz;
franta-hg@1:     }
franta-hg@1:     
franta-hg@1:     /** Setter for property style.
franta-hg@1:      * @param style New value of property style.
franta-hg@1:      */
franta-hg@1:     public void setStyle(String style) {
franta-hg@1:         this.style = style;
franta-hg@1:     }
franta-hg@1:     
franta-hg@1:     /** Setter for property title.
franta-hg@1:      * @param title New value of property title.
franta-hg@1:      */
franta-hg@1:     public void setHtmltitle(String title) {
franta-hg@1:         this.title = title;
franta-hg@1:     }
franta-hg@1:     
franta-hg@1:     /** Setter for property lang.
franta-hg@1:      * @param lang New value of property lang.
franta-hg@1:      */
franta-hg@1:     public void setLang(String lang) {
franta-hg@1:         this.lang = lang;
franta-hg@1:     }
franta-hg@1:     
franta-hg@1:     /** Setter for property dir.
franta-hg@1:      * @param dir New value of property dir.
franta-hg@1:      */
franta-hg@1:     public void setDir(String dir) {
franta-hg@1:         this.dir = dir;
franta-hg@1:     }
franta-hg@1:     
franta-hg@1:     /** Setter for property onclick.
franta-hg@1:      * @param onclick New value of property onclick.
franta-hg@1:      */
franta-hg@1:     public void setOnclick(String onclick) {
franta-hg@1:         this.onclick = onclick;
franta-hg@1:     }
franta-hg@1:     
franta-hg@1:     /** Setter for property ondbclick.
franta-hg@1:      * @param ondbclick New value of property ondbclick.
franta-hg@1:      */
franta-hg@1:     public void setOndbclick(String ondbclick) {
franta-hg@1:         this.ondbclick = ondbclick;
franta-hg@1:     }
franta-hg@1:     
franta-hg@1:     /** Setter for property onmousedown.
franta-hg@1:      * @param onmousedown New value of property onmousedown.
franta-hg@1:      */
franta-hg@1:     public void setOnmousedown(String onmousedown) {
franta-hg@1:         this.onmousedown = onmousedown;
franta-hg@1:     }
franta-hg@1:     
franta-hg@1:     /** Setter for property onmouseup.
franta-hg@1:      * @param onmouseup New value of property onmouseup.
franta-hg@1:      */
franta-hg@1:     public void setOnmouseup(String onmouseup) {
franta-hg@1:         this.onmouseup = onmouseup;
franta-hg@1:     }
franta-hg@1:     
franta-hg@1:     /** Setter for property onmouseover.
franta-hg@1:      * @param onmouseover New value of property onmouseover.
franta-hg@1:      */
franta-hg@1:     public void setOnmouseover(String onmouseover) {
franta-hg@1:         this.onmouseover = onmouseover;
franta-hg@1:     }
franta-hg@1:     
franta-hg@1:     /** Setter for property onmousemove.
franta-hg@1:      * @param onmousemove New value of property onmousemove.
franta-hg@1:      */
franta-hg@1:     public void setOnmousemove(String onmousemove) {
franta-hg@1:         this.onmousemove = onmousemove;
franta-hg@1:     }
franta-hg@1:     
franta-hg@1:     /** Setter for property onmouseout.
franta-hg@1:      * @param onmouseout New value of property onmouseout.
franta-hg@1:      */
franta-hg@1:     public void setOnmouseout(String onmouseout) {
franta-hg@1:         this.onmouseout = onmouseout;
franta-hg@1:     }
franta-hg@1:     
franta-hg@1:     /** Setter for property onkeypress.
franta-hg@1:      * @param onkeypress New value of property onkeypress.
franta-hg@1:      */
franta-hg@1:     public void setOnkeypress(String onkeypress) {
franta-hg@1:         this.onkeypress = onkeypress;
franta-hg@1:     }
franta-hg@1:     
franta-hg@1:     /** Setter for property onkeydown.
franta-hg@1:      * @param onkeydown New value of property onkeydown.
franta-hg@1:      */
franta-hg@1:     public void setOnkeydown(String onkeydown) {
franta-hg@1:         this.onkeydown = onkeydown;
franta-hg@1:     }
franta-hg@1:     
franta-hg@1:     /** Setter for property onkeyup.
franta-hg@1:      * @param onkeyup New value of property onkeyup.
franta-hg@1:      */
franta-hg@1:     public void setOnkeyup(String onkeyup) {
franta-hg@1:         this.onkeyup = onkeyup;
franta-hg@1:     }
franta-hg@1:     
franta-hg@1: }