| HtmlTopTag.java |
1 /**
2 * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a copy
5 * of this software and associated documentation files (the "Software"), to deal
6 * in the Software without restriction, including without limitation the rights
7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8 * copies of the Software, and to permit persons to whom the Software is
9 * furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20 * SOFTWARE.
21 */
22
23 package com.liferay.taglib.util;
24
25 import com.liferay.portal.kernel.util.StringPool;
26 import com.liferay.portal.kernel.util.WebKeys;
27
28 import javax.servlet.http.HttpServletRequest;
29 import javax.servlet.jsp.tagext.BodyTagSupport;
30
31 /**
32 * <a href="HtmlTopTag.java.html"><b><i>View Source</i></b></a>
33 *
34 * @author Brian Wing Shun Chan
35 */
36 public class HtmlTopTag extends BodyTagSupport {
37
38 public int doStartTag() {
39 return EVAL_BODY_BUFFERED;
40 }
41
42 public int doAfterBody() {
43 _bodyContentString = getBodyContent().getString();
44
45 return SKIP_BODY;
46 }
47
48 public int doEndTag() {
49 HttpServletRequest request =
50 (HttpServletRequest)pageContext.getRequest();
51
52 StringBuilder sb = (StringBuilder)request.getAttribute(
53 WebKeys.PAGE_TOP);
54
55 if (sb == null) {
56 sb = new StringBuilder();
57
58 request.setAttribute(WebKeys.PAGE_TOP, sb);
59 }
60
61 sb.append(_bodyContentString);
62
63 return EVAL_PAGE;
64 }
65
66 private String _bodyContentString = StringPool.BLANK;
67
68 }