| /* |
| * 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)); |
| } |
| } |