package pt.ist.renderers;

import org.apache.commons.collections.Predicate;

import pt.ist.renderers.components.HtmlComponent;
import pt.ist.renderers.components.HtmlContainer;
import pt.ist.renderers.components.HtmlInlineContainer;
import pt.ist.renderers.components.HtmlText;
import pt.ist.renderers.components.HtmlTextInput;
import pt.ist.renderers.layouts.Layout;
import pt.ist.renderers.model.MetaSlotKey;

/**
 * This renderer provides a standard way of doing the input of a string. The
 * string is read with a text input field.
 * 
 * <p>
 * Example: <input type="text" value="the string"/>
 * 
 * @author cfgi
 */
public class StringInputRenderer extends TextFieldRenderer {

    @Override
    protected HtmlComponent createTextField(Object object, Class type) {
	String string = (String) object;

	HtmlTextInput input = new HtmlTextInput();
	input.setValue(string);

	HtmlContainer container = new HtmlInlineContainer();
	container.addChild(input);
	container.addChild(new HtmlText(getFormatLabel()));

	return container;
    }

    @Override
    protected Layout getLayout(Object object, Class type) {
	return new StringInputFieldLayout();
    }

    class StringInputFieldLayout extends TextFieldLayout {

	@Override
	protected void setContextSlot(HtmlComponent component, MetaSlotKey slotKey) {
	    HtmlComponent actualComponent = component instanceof HtmlTextInput ? component : component.getChild(new Predicate() {

		@Override
		public boolean evaluate(Object arg0) {
		    return arg0 instanceof HtmlTextInput;
		}

	    });
	    super.setContextSlot(actualComponent, slotKey);
	}

	@Override
	public void applyStyle(HtmlComponent component) {
	    HtmlComponent actualComponent = component instanceof HtmlTextInput ? component : component.getChild(new Predicate() {

		@Override
		public boolean evaluate(Object arg0) {
		    return arg0 instanceof HtmlTextInput;
		}

	    });
	    super.applyStyle(actualComponent);
	}

    }
}