| /* |
| * Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package com.sun.tools.doclets.formats.html.markup; |
| |
| import java.io.IOException; |
| import java.io.Writer; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| import com.sun.tools.doclets.internal.toolkit.Content; |
| |
| /** |
| * A sequence of Content nodes. |
| */ |
| public class ContentBuilder extends Content { |
| protected List<Content> contents = Collections.<Content>emptyList(); |
| |
| @Override |
| public void addContent(Content content) { |
| nullCheck(content); |
| ensureMutableContents(); |
| if (content instanceof ContentBuilder) { |
| contents.addAll(((ContentBuilder) content).contents); |
| } else |
| contents.add(content); |
| } |
| |
| @Override |
| public void addContent(String text) { |
| if (text.isEmpty()) |
| return; |
| ensureMutableContents(); |
| Content c = contents.isEmpty() ? null : contents.get(contents.size() - 1); |
| StringContent sc; |
| if (c != null && c instanceof StringContent) { |
| sc = (StringContent) c; |
| } else { |
| contents.add(sc = new StringContent()); |
| } |
| sc.addContent(text); |
| } |
| |
| @Override |
| public boolean write(Writer writer, boolean atNewline) throws IOException { |
| for (Content content: contents) { |
| atNewline = content.write(writer, atNewline); |
| } |
| return atNewline; |
| } |
| |
| @Override |
| public boolean isEmpty() { |
| for (Content content: contents) { |
| if (!content.isEmpty()) |
| return false; |
| } |
| return true; |
| } |
| |
| @Override |
| public int charCount() { |
| int n = 0; |
| for (Content c : contents) |
| n += c.charCount(); |
| return n; |
| } |
| |
| private void ensureMutableContents() { |
| if (contents.isEmpty()) |
| contents = new ArrayList<Content>(); |
| } |
| } |