/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 org.apache.wicket.extensions.markup.html.form.palette.component;
import java.util.Iterator;
import java.util.Map;
import org.apache.wicket.extensions.markup.html.form.palette.Palette;
import org.apache.wicket.markup.ComponentTag;
import org.apache.wicket.markup.MarkupStream;
import org.apache.wicket.markup.html.form.FormComponent;
import org.apache.wicket.markup.html.form.IChoiceRenderer;
import org.apache.wicket.util.string.AppendingStringBuffer;
import org.apache.wicket.util.string.JavascriptUtils;
import org.apache.wicket.util.value.IValueMap;
/**
* Generates 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 static final long serialVersionUID = 1L;
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;
setOutputMarkupId(true);
}
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);
Object displayValue = renderer.getDisplayValue(choice);
Class displayClass = displayValue == null ? null : displayValue.getClass();
String value = getConverter(displayClass).convertToString(displayValue, getLocale());
value = getLocalizer().getString(id + "." + value, this, value);
buffer.append("\n<option value=\"").append(id).append("\"");
Map additionalAttributesMap = getAdditionalAttributes(choice);
if (additionalAttributesMap != null)
{
Iterator iter = additionalAttributesMap.keySet().iterator();
while (iter.hasNext())
{
String next = (String)iter.next();
buffer.append(" " + next + "=\"" +
additionalAttributesMap.get(next).toString() + "\"");
}
}
buffer.append(">").append(value).append("</option>");
}
buffer.append("\n");
replaceComponentTagBody(markupStream, openTag, buffer);
}
/**
* @return map of attribute/value pairs (String/String)
*/
protected Map getAdditionalAttributes(Object choice)
{
return null;
}
/**
*
* @param tag
*/
protected void onComponentTag(ComponentTag tag)
{
checkComponentTag(tag, "select");
super.onComponentTag(tag);
IValueMap attrs = tag.getAttributes();
attrs.put("multiple", null);
attrs.put("size", new Integer(getPalette().getRows()));
if (!palette.isPaletteEnabled())
{
attrs.put("disabled", "disabled");
}
// A piece of javascript to avoid serializing the options during AJAX
// serialization.
getResponse().write(
JavascriptUtils.SCRIPT_OPEN_TAG +
"if (typeof(Wicket) != \"undefined\" && typeof(Wicket.Form) != \"undefined\")" +
" Wicket.Form.excludeFromAjaxSerialization." + getMarkupId() + "='true';" +
JavascriptUtils.SCRIPT_CLOSE_TAG);
}
/**
* @see org.apache.wicket.markup.html.form.FormComponent#updateModel()
*/
public void updateModel()
{
}
}