1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/classes/com/sun/tools/doclets/formats/html/markup/ContentBuilder.java Wed Apr 27 01:34:52 2016 +0800
1.3 @@ -0,0 +1,95 @@
1.4 +/*
1.5 + * Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation. Oracle designates this
1.11 + * particular file as subject to the "Classpath" exception as provided
1.12 + * by Oracle in the LICENSE file that accompanied this code.
1.13 + *
1.14 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.15 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.16 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.17 + * version 2 for more details (a copy is included in the LICENSE file that
1.18 + * accompanied this code).
1.19 + *
1.20 + * You should have received a copy of the GNU General Public License version
1.21 + * 2 along with this work; if not, write to the Free Software Foundation,
1.22 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.23 + *
1.24 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.25 + * or visit www.oracle.com if you need additional information or have any
1.26 + * questions.
1.27 + */
1.28 +
1.29 +package com.sun.tools.doclets.formats.html.markup;
1.30 +
1.31 +import java.io.IOException;
1.32 +import java.io.Writer;
1.33 +import java.util.ArrayList;
1.34 +import java.util.Collections;
1.35 +import java.util.List;
1.36 +import com.sun.tools.doclets.internal.toolkit.Content;
1.37 +
1.38 +/**
1.39 + * A sequence of Content nodes.
1.40 + */
1.41 +public class ContentBuilder extends Content {
1.42 + protected List<Content> contents = Collections.<Content>emptyList();
1.43 +
1.44 + @Override
1.45 + public void addContent(Content content) {
1.46 + nullCheck(content);
1.47 + ensureMutableContents();
1.48 + if (content instanceof ContentBuilder) {
1.49 + contents.addAll(((ContentBuilder) content).contents);
1.50 + } else
1.51 + contents.add(content);
1.52 + }
1.53 +
1.54 + @Override
1.55 + public void addContent(String text) {
1.56 + if (text.isEmpty())
1.57 + return;
1.58 + ensureMutableContents();
1.59 + Content c = contents.isEmpty() ? null : contents.get(contents.size() - 1);
1.60 + StringContent sc;
1.61 + if (c != null && c instanceof StringContent) {
1.62 + sc = (StringContent) c;
1.63 + } else {
1.64 + contents.add(sc = new StringContent());
1.65 + }
1.66 + sc.addContent(text);
1.67 + }
1.68 +
1.69 + @Override
1.70 + public boolean write(Writer writer, boolean atNewline) throws IOException {
1.71 + for (Content content: contents) {
1.72 + atNewline = content.write(writer, atNewline);
1.73 + }
1.74 + return atNewline;
1.75 + }
1.76 +
1.77 + @Override
1.78 + public boolean isEmpty() {
1.79 + for (Content content: contents) {
1.80 + if (!content.isEmpty())
1.81 + return false;
1.82 + }
1.83 + return true;
1.84 + }
1.85 +
1.86 + @Override
1.87 + public int charCount() {
1.88 + int n = 0;
1.89 + for (Content c : contents)
1.90 + n += c.charCount();
1.91 + return n;
1.92 + }
1.93 +
1.94 + private void ensureMutableContents() {
1.95 + if (contents.isEmpty())
1.96 + contents = new ArrayList<Content>();
1.97 + }
1.98 +}
