wicket.extensions.markup.html.form.palette.component.AbstractOptions Maven / Gradle / Ivy

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/*
 * $Id: AbstractOptions.java 5231 2006-04-01 23:34:49Z joco01 $
 * $Revision: 5231 $ $Date: 2006-04-02 01:34:49 +0200 (Sun, 02 Apr 2006) $
 * 
 * ==============================================================================
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package wicket.extensions.markup.html.form.palette.component;

import java.util.Iterator;

import wicket.extensions.markup.html.form.palette.Palette;
import wicket.markup.ComponentTag;
import wicket.markup.MarkupStream;
import wicket.markup.html.form.FormComponent;
import wicket.markup.html.form.IChoiceRenderer;
import wicket.util.string.AppendingStringBuffer;
import wicket.util.value.ValueMap;

/**
 * Generats html option elements based on iterator specified by
 * getOptionsIterator() and IChoiceRender specified by the palette
 * 
 * @author Igor Vaynberg ( ivaynberg )
 * 
 */
public abstract class AbstractOptions extends FormComponent
{
	private Palette palette;

	protected Palette getPalette()
	{
		return palette;
	}

	/**
	 * @param id
	 *            component id
	 * @param palette
	 *            parent palette
	 */
	public AbstractOptions(String id, Palette palette)
	{
		super(id);
		this.palette = palette;
	}

	protected abstract Iterator getOptionsIterator();

	protected void onComponentTagBody(MarkupStream markupStream, ComponentTag openTag)
	{
		final AppendingStringBuffer buffer = new AppendingStringBuffer(128);
		Iterator options = getOptionsIterator();
		IChoiceRenderer renderer = getPalette().getChoiceRenderer();

		while (options.hasNext())
		{
			final Object choice = options.next();
			String id = renderer.getIdValue(choice, 0);
			String value = (String)getConverter().convert(renderer.getDisplayValue(choice),
					String.class);
			value = getLocalizer().getString(id + "." + value, this, value);

			buffer.append("\n");

		}

		buffer.append("\n");
		replaceComponentTagBody(markupStream, openTag, buffer);
	}

	protected void onComponentTag(ComponentTag tag)
	{
		checkComponentTag(tag, "select");

		super.onComponentTag(tag);
		ValueMap attrs = tag.getAttributes();

		attrs.put("multiple", null);
		attrs.put("size", new Integer(getPalette().getRows()));

		attrs.put("id", getPath());

	}

	/**
	 * @see wicket.markup.html.form.FormComponent#updateModel()
	 */
	public void updateModel()
	{
	}

}