/*
* 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 com.google.gwt.text.shared;
import com.google.gwt.safehtml.shared.SafeHtml;
import com.google.gwt.safehtml.shared.SafeHtmlBuilder;
import com.google.gwt.safehtml.shared.SafeHtmlUtils;
/**
* Abstract implementation of a safe HTML renderer to make implementation of
* rendering simpler.
*
* @param <T> the type to render
*/
public abstract class AbstractSafeHtmlRenderer<T> implements
SafeHtmlRenderer<T> {
private static final SafeHtml EMPTY_STRING = SafeHtmlUtils.fromSafeConstant("");
public void render(T object, SafeHtmlBuilder appendable) {
appendable.append(render(object));
}
protected SafeHtml toSafeHtml(Object obj) {
return obj == null ? EMPTY_STRING
: SafeHtmlUtils.fromString(String.valueOf(obj));
}
}