/* *************************************************************************
 
 IT Mill Toolkit 

 Development of Browser User Interfaces Made Easy

 Copyright (C) 2000-2006 IT Mill Ltd
 
 *************************************************************************

 This product is distributed under commercial license that can be found
 from the product package on license.pdf. Use of this product might 
 require purchasing a commercial license from IT Mill Ltd. For guidelines 
 on usage, see licensing-guidelines.html

 *************************************************************************
 
 For more information, contact:
 
 IT Mill Ltd                           phone: +358 2 4802 7180
 Ruukinkatu 2-4                        fax:   +358 2 4802 7181
 20540, Turku                          email:  info@itmill.com
 Finland                               company www: www.itmill.com
 
 Primary source for information and releases: www.itmill.com

 ********************************************************************** */

package com.itmill.toolkit.ui;

import java.util.Date;

import com.itmill.toolkit.data.Container;
import com.itmill.toolkit.data.Item;
import com.itmill.toolkit.data.Property;

/**
 * Default implementation of the the following Field types are used by default:
 * <p>
 * <b>Boolean</b>: Button(switchMode:true).<br/> <b>Date</b>:
 * DateField(resolution: day).<br/> <b>Item</b>: Form. <br/> <b>default field
 * type</b>: TextField.
 * <p>
 * 
 * @author IT Mill Ltd.
 * @version
 * @VERSION@
 * @since 3.1
 */

public class BaseFieldFactory implements FieldFactory {

	/**
	 * Creates the field based on type of data.
	 * 
	 * 
	 * @param type
	 *            the type of data presented in field.
	 * @param uiContext
	 *            the context where the Field is presented.
	 * 
	 * @see com.itmill.toolkit.ui.FieldFactory#createField(Class, Component)
	 */
	public Field createField(Class type, Component uiContext) {
		// Null typed properties can not be edited
		if (type == null)
			return null;

		// Item field
		if (Item.class.isAssignableFrom(type)) {
			return new Form();
		}

		// Date field
		if (Date.class.isAssignableFrom(type)) {
			DateField df = new DateField();
			df.setResolution(DateField.RESOLUTION_DAY);
			return df;
		}

		// Boolean field
		if (Boolean.class.isAssignableFrom(type)) {
			Button button = new Button();
			button.setSwitchMode(true);
			button.setImmediate(false);
			return button;
		}

		// Nested form is used by default
		return new TextField();
	}

	/**
	 * Creates the field based on the datasource property.
	 * 
	 * @see com.itmill.toolkit.ui.FieldFactory#createField(Property, Component)
	 */
	public Field createField(Property property, Component uiContext) {
		if (property != null)
			return createField(property.getType(), uiContext);
		else
			return null;
	}

	/**
	 * Creates the field based on the item and property id.
	 * 
	 * @see com.itmill.toolkit.ui.FieldFactory#createField(Item, Object,
	 *      Component)
	 */
	public Field createField(Item item, Object propertyId, Component uiContext) {
		if (item != null && propertyId != null) {
			Field f = createField(item.getItemProperty(propertyId), uiContext);
			if (f instanceof AbstractComponent)
				((AbstractComponent) f).setCaption(propertyId.toString());
			return f;
		} else
			return null;
	}

	/**
	 * @see com.itmill.toolkit.ui.FieldFactory#createField(com.itmill.toolkit.data.Container,
	 *      java.lang.Object, java.lang.Object, com.itmill.toolkit.ui.Component)
	 */
	public Field createField(Container container, Object itemId,
			Object propertyId, Component uiContext) {
		return createField(container.getContainerProperty(itemId, propertyId),
				uiContext);
	}

}