/**
* Copyright 2010 Google Inc.
*
* 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 org.waveprotocol.box.server.rpc.render.uibuilder;
import org.waveprotocol.box.server.rpc.render.common.safehtml.SafeHtmlBuilder;
import org.waveprotocol.wave.model.util.CollectionUtils;
import java.util.Collection;
/**
* An HtmlClosure composed of a list of HtmlClosures.
*
*/
public final class HtmlClosureCollection implements HtmlClosure {
/** Collection of closures, lazily created. */
private Collection<HtmlClosure> children;
/**
* Creates a closures collection.
*/
public HtmlClosureCollection() {
}
/**
* Adds a closure to this collection.
*
* @param child closure to add
*/
public void add(HtmlClosure child) {
if (children == null) {
children = CollectionUtils.createQueue();
}
children.add(child);
}
@Override
public void outputHtml(SafeHtmlBuilder out) {
if (children != null) {
for (HtmlClosure builder : children) {
builder.outputHtml(out);
}
}
}
}