1   /**
2    * Copyright (c) 2000-2008 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.portal.servlet.taglib.ui;
24  
25  import com.liferay.portal.kernel.util.StringPool;
26  import com.liferay.portal.kernel.util.Validator;
27  import com.liferay.portal.theme.ThemeDisplay;
28  import com.liferay.portal.util.SessionClicks;
29  import com.liferay.portal.util.WebKeys;
30  import com.liferay.util.PwdGenerator;
31  
32  import javax.servlet.RequestDispatcher;
33  import javax.servlet.ServletContext;
34  import javax.servlet.http.HttpServletRequest;
35  import javax.servlet.http.HttpServletResponse;
36  import javax.servlet.jsp.JspException;
37  
38  import org.apache.commons.logging.Log;
39  import org.apache.commons.logging.LogFactory;
40  
41  /**
42   * <a href="ToggleTagUtil.java.html"><b><i>View Source</i></b></a>
43   *
44   * @author Brian Wing Shun Chan
45   *
46   */
47  public class ToggleTagUtil {
48  
49      public static void doEndTag(
50              String page, String id, String showImage, String hideImage,
51              String showMessage, String hideMessage, boolean defaultShowContent,
52              String stateVar, ServletContext ctx, HttpServletRequest req,
53              HttpServletResponse res)
54          throws JspException {
55  
56          try {
57              ThemeDisplay themeDisplay =
58                  (ThemeDisplay)req.getAttribute(WebKeys.THEME_DISPLAY);
59  
60              if (Validator.isNull(showImage) && Validator.isNull(showMessage)) {
61                  showImage =
62                      themeDisplay.getPathThemeImages() + "/arrows/01_down.png";
63              }
64  
65              if (Validator.isNull(hideImage) && Validator.isNull(hideImage)) {
66                  hideImage =
67                      themeDisplay.getPathThemeImages() + "/arrows/01_right.png";
68              }
69  
70              String defaultStateValue =
71                  defaultShowContent ? StringPool.BLANK : "none";
72              String defaultImage = defaultShowContent ? hideImage : showImage;
73              String defaultMessage =
74                  defaultShowContent ? hideMessage : showMessage;
75  
76              String clickValue = SessionClicks.get(req, id, null);
77  
78              if (defaultShowContent) {
79                  if ((clickValue != null) && (clickValue.equals("none"))) {
80                      defaultStateValue = "none";
81                      defaultImage = showImage;
82                      defaultMessage = showMessage;
83                  }
84                  else {
85                      defaultStateValue = "";
86                      defaultImage = hideImage;
87                      defaultMessage = hideMessage;
88                  }
89              }
90              else {
91                  if ((clickValue == null) || (clickValue.equals("none"))) {
92                      defaultStateValue = "none";
93                      defaultImage = showImage;
94                      defaultMessage = showMessage;
95                  }
96                  else {
97                      defaultStateValue = "";
98                      defaultImage = hideImage;
99                      defaultMessage = hideMessage;
100                 }
101             }
102 
103             if (stateVar == null) {
104                 stateVar = PwdGenerator.getPassword(PwdGenerator.KEY3, 8);
105             }
106 
107             req.setAttribute("liferay-ui:toggle:id", id);
108             req.setAttribute("liferay-ui:toggle:showImage", showImage);
109             req.setAttribute("liferay-ui:toggle:hideImage", hideImage);
110             req.setAttribute("liferay-ui:toggle:showMessage", showMessage);
111             req.setAttribute("liferay-ui:toggle:hideMessage", hideMessage);
112             req.setAttribute("liferay-ui:toggle:stateVar", stateVar);
113             req.setAttribute(
114                 "liferay-ui:toggle:defaultStateValue", defaultStateValue);
115             req.setAttribute("liferay-ui:toggle:defaultImage", defaultImage);
116             req.setAttribute(
117                 "liferay-ui:toggle:defaultMessage", defaultMessage);
118 
119             RequestDispatcher rd = ctx.getRequestDispatcher(page);
120 
121             rd.include(req, res);
122         }
123         catch (Exception e) {
124             _log.error(e, e);
125 
126             throw new JspException(e);
127         }
128     }
129 
130     private static Log _log = LogFactory.getLog(ToggleTagUtil.class);
131 
132 }