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package net.wotonomy.web;

import net.wotonomy.foundation.NSArray;
import net.wotonomy.foundation.NSDictionary;
import net.wotonomy.foundation.NSMutableArray;

public class WOCheckBox extends WOInput {

	protected boolean checked = false;

	public WOCheckBox() {
		super();
	}

	public WOCheckBox(String aName, NSDictionary assocs, WOElement template) {
		super(aName, assocs, template);
	}

	protected String inputType() {
		return "CHECKBOX";
	}

	protected Object value(WOContext c) {
		Object val = null;
		boolean checked = false;
		if (associations.objectForKey("value") != null) {
			val = valueForProperty("value", c.component());
			Object sel = valueForProperty("selection", c.component());
			if (sel != null && val != null && sel.equals(val))
				checked = true;
		}
		if (val == null) {
			val = c.elementID();
		}
		return val;
	}

	protected void appendExtras(WOResponse r, WOContext c) {
		checked |= booleanForProperty("checked", c.component());
		if (checked)
			r.appendContentString(" CHECKED");
	}

	protected NSMutableArray additionalAttributes() {
		NSMutableArray a = super.additionalAttributes();
		a.addObject("checked");
		a.addObject("selection");
		return a;
	}

	public void appendToResponse(WOResponse r, WOContext c) {
		checked = false;
		super.appendToResponse(r, c);
	}

	public void takeValuesFromRequest(WORequest r, WOContext c) {
		if (disabled(c))
			return;
		NSArray values = r.formValuesForKey(inputName(c));
		Object val = valueForProperty("value", c.component());
		if (val == null)
			val = c.elementID();
		java.util.Enumeration enumerator = values.objectEnumerator();
		checked = false;
		while (enumerator.hasMoreElements()) {
			Object nextval = enumerator.nextElement();
			if (nextval.equals(val))
				checked = true;
		}
		if (associations.objectForKey("value") != null && associations.objectForKey("selection") != null) {
			if (checked)
				setValueForProperty("selection", val, c.component());
			else if (valueForProperty("selection", c.component()) != null)
				setValueForProperty("selection", null, c.component());
		}
		if (associations.objectForKey("checked") != null)
			setValueForProperty("checked", checked ? Boolean.TRUE : Boolean.FALSE, c.component());
	}

}