/*
* 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.isis.viewer.wicket.ui.util;
import com.google.common.base.Strings;
import org.apache.wicket.MarkupContainer;
import org.apache.wicket.behavior.AttributeAppender;
import org.apache.wicket.markup.ComponentTag;
import org.apache.wicket.model.IModel;
import org.apache.wicket.model.Model;
/**
* Implementation of {@link AttributeAppender} that appends the provided CSS
* <tt>id</tt> attribute.
*/
public class CssIdAppender extends AttributeAppender {
private static final long serialVersionUID = 1L;
public CssIdAppender(final IModel<String> appendModel) {
super("id", appendModel, " ");
}
public CssIdAppender(final String append) {
this(Model.of(append));
}
/**
* Adds CSS id to tag (providing that the id is non-null and non-empty).
*/
public static void appendCssIdTo(
final ComponentTag tag,
final String cssId) {
if(Strings.isNullOrEmpty(cssId)) {
return;
}
tag.append("id", cssId, " ");
}
/**
* Adds CSS class to container (providing that the class is non-null and non-empty).
*/
public static void appendCssIdTo(
final MarkupContainer markupContainer,
final String cssClass) {
if(Strings.isNullOrEmpty(cssClass)) {
return;
}
markupContainer.add(new CssIdAppender(cssClass));
}
}