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/* ------------------------------------ JavaOnTracks Thibaut Colar tcolar-jot AT colar DOT net Artistic Licence 2.0 http://www.javaontracks.net ------------------------------------ */ package net.jot.web.forms; import java.util.Arrays; import java.util.Enumeration; import java.util.Hashtable; import java.util.Vector; import net.jot.logger.JOTLogger; import net.jot.web.view.JOTViewTag; /** * A form element is basically equivalent to an HTML form field. * It stores that field data (ie: value, type etc..) * @author thibautc * */ public class JOTFormElement extends JOTViewTag { private int type=JOTFormConst.UNDEFINED; /** Some Elements (ie select) might have subelements (ie: option) */ private Hashtable subElements=new Hashtable(); /** * Creates a formelement of the given type * ie: type=JOTFormConst.INPUT_TEXT * @param elementType */ public JOTFormElement(int elementType) { type=elementType; switch(type) { case JOTFormConst.INPUT_TEXT: setTagProperty("type", "text"); break; case JOTFormConst.INPUT_HIDDEN: setTagProperty("type", "hidden"); break; case JOTFormConst.INPUT_BUTTON: setTagProperty("type", "button"); break; case JOTFormConst.INPUT_CHECKBOX: setTagProperty("type", "checkbox"); break; case JOTFormConst.INPUT_IMAGE: setTagProperty("type", "image"); break; case JOTFormConst.INPUT_PASSWORD: setTagProperty("type", "password"); break; case JOTFormConst.INPUT_RADIO: setTagProperty("type", "radio"); break; case JOTFormConst.INPUT_SUBMIT: setTagProperty("type", "submit"); break; case JOTFormConst.INPUT_RESET: setTagProperty("type", "reset"); break; } } /** * Easy way to set the value of an element * for example for most fields it's the value="" property * but for a textarea it will be the content * and for a checkbox a SELECTED flag etc... * @param htmlValue */ public void setValue(String htmlValue) { JOTLogger.log(JOTLogger.CAT_FLOW,JOTLogger.DEBUG_LEVEL, this, "HTML value:"+htmlValue); switch(type) { case JOTFormConst.TEXTAREA: setContent(htmlValue); break; case JOTFormConst.SELECT: Hashtable subs=getSubElements(); String[] values=htmlValue.split(","); Vector list= new Vector(Arrays.asList(values)); Enumeration e=subs.keys(); while(e.hasMoreElements()) { String key=(String)e.nextElement(); JOTFormElement el=(JOTFormElement)subs.get(key); if(list.contains(key)) { el.setFlag(JOTFormConst.VALUE_SELECTED); } else { el.removeFlag(JOTFormConst.VALUE_SELECTED); } } //setContent(htmlValue); break; case JOTFormConst.INPUT_CHECKBOX: if(htmlValue.equalsIgnoreCase("on") || htmlValue.equalsIgnoreCase(JOTFormConst.VALUE_CHECKED)) setFlag(JOTFormConst.VALUE_CHECKED); else removeFlag(JOTFormConst.VALUE_CHECKED); break; case JOTFormConst.INPUT_RADIO: if(htmlValue.equalsIgnoreCase("on") || htmlValue.equalsIgnoreCase(JOTFormConst.VALUE_CHECKED)) setFlag(JOTFormConst.VALUE_CHECKED); else removeFlag(JOTFormConst.VALUE_CHECKED); break; default: setTagProperty("value", htmlValue); } } /** * Shortcut to get the value of a field, see setValue() * @return */ public String getValue() { String value=null; switch(type) { case JOTFormConst.TEXTAREA: value=getContent(); break; case JOTFormConst.SELECT: Hashtable subs=getSubElements(); Enumeration keys=subs.keys(); while(keys.hasMoreElements()) { String key=(String)keys.nextElement(); JOTFormElement option=(JOTFormElement)subs.get(key); Boolean val2=(Boolean)option.getFlags().get(JOTFormConst.VALUE_SELECTED); if(val2!=null && val2==Boolean.TRUE) { if(value==null) value=""; value+=key+","; } } if(value!=null && value.endsWith(",")) value=value.substring(0,value.length()-1); break; case JOTFormConst.INPUT_CHECKBOX: Boolean val=(Boolean)getFlags().get(JOTFormConst.VALUE_CHECKED); if(val!=null && val==Boolean.TRUE) value=JOTFormConst.VALUE_CHECKED; else value=JOTFormConst.VALUE_UNCHECKED; break; case JOTFormConst.INPUT_RADIO: val=(Boolean)getFlags().get(JOTFormConst.VALUE_CHECKED); if(val!=null && val==Boolean.TRUE) value=JOTFormConst.VALUE_CHECKED; else value=JOTFormConst.VALUE_UNCHECKED; break; default: value=(String)getTagProperties().get("value"); } return value; } public void set(String htmlId, JOTFormElement element) { subElements.put(htmlId, element); } public JOTFormElement get(int type, String name) { JOTFormElement el=(JOTFormElement)subElements.get(name); if(el==null) { el=new JOTFormElement(type); subElements.put(name,el); } return el; } public int getType() { return type; } /** * Manually set/update an element type * @param type */ public void setType(int type) { this.type = type; } public Hashtable getSubElements() { return subElements; } }