ExLayerInputTag


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64  
65  package com.jcorporate.expresso.ext.struts.taglib.html;
66  
67  /*
68   * ExLayerInputTag.java
69   *
70   * Copyright 2002, 2002 Yves Henri AMAIZO.
71   *                            amy_amaizo@compuserve.com
72   */
73  
74  import com.jcorporate.expresso.core.controller.Input;
75  import com.jcorporate.expresso.core.misc.StringUtil;
76  import com.jcorporate.expresso.ext.struts.taglib.ControllerUtils;
77  import org.apache.struts.util.ResponseUtils;
78  
79  import javax.servlet.jsp.JspException  ;
80  import java.util.Iterator  ;
81  import java.util.List  ;
82  import java.util.Vector  ;
83  
84  
85  /**
86   *
87   *  <%@taglib uri="/WEB-INF/tld/expresso.tld" prefix="expresso"%>
88   *  <%@taglib uri="/WEB-INF/tld/expresso-html.tld" prefix="html"%>
89   *  <%@taglib uri="/WEB-INF/tld/expresso-logic.tld" prefix="logic"%>
90   *  <html:html locale="true">
91   *  <head>
92   *      <TITLE>Sample TagLib collapse Layer</TITLE>
93   *  </head>
94   *  <body>
95   *  <html:form action="/expresso/Test.do">
96   *
97   *      <table border="0" bgcolor="black" width="100%">
98   *          <tr>
99   *              <td nowrap bgcolor="WHITE">
100  *                  <table border = "0">
101  *                      <tr>
102  *                          <TD width="100"  nowrap >answer question</TD>
103  *                          <TD width="100"  nowrap align="left" ><html:radioLayer property="swapp" id="look" action="show" value="Yes" node="collapse"/>Yes</TD>
104  *                          <TD width="100"  nowrap align="left"><html:radioLayer property="swapp" id="look" action="hide" value="No"/>No</TD>
105  *                          <TD>
106  *                              <html:layer id="look" property="swapp" value="Yes">
107  *                                  <html:remoteLayer id="titi2" action="show">display</html:remoteLayer>/<html:remoteLayer id="titi2" action="hide">close</html:remoteLayer>
108  *                              </html:layer>
109  *                          </TD>
110  *                      </tr>
111  *                  </table>
112  *                      <html:layer id="titi2" state="hide">
113  *                      <table border="0" bgcolor="black" width="100%">
114  *                          <tr>
115  *                              <TD width="200" nowrap bgcolor="WHITE">Question details</TD>
116  *                              <TD align="left" nowrap width="200" bgcolor="WHITE">Wrooooooo!</TD>
117  *                          </tr>
118  *                      </table>
119  *                      </html:layer>
120  *              </td>
121  *          </tr>
122  *          <tr>
123  *              <td bgcolor="WHITE">
124  *                  <table border="0">
125  *                      <tr>
126  *                          <TD width="200" nowrap bgcolor="WHITE">question 2</TD>
127  *                          <TD align="left" nowrap width="200" bgcolor="WHITE">Wrooooooo!</TD>
128  *                      </tr>
129  *                  </table>
130  *              </td>
131  *          </tr>
132  *      </table>
133  *  </html:form>
134  *  </body>
135  *  </html:html>
136  */
137 
138 /**
139  * Tag for input fields of type "LayerInput".
140  *
141  * @author Yves Henri AMAIZO
142  */
143 public class ExLayerInputTag extends ExLayerTag {
144 
145     private String   property = "";
146 
147     private String   value = "";
148 
149     private List   cascadedLayerControl = null;
150 
151     private static String   STR_JS_LAYER = "document.getElementById('%id%').style.display = '%action%';";
152 
153 
154     private static String   SHOW = "block";
155 
156     private static String   HIDE = "none";
157 
158 
159     /**
160      * Constructor for ExLayerInputTag
161      */
162     public ExLayerInputTag() {
163         super();
164     }
165 
166     public int doStartTag() throws JspException   {
167         if (!property.equals("")) {
168             String   defaultValue = "";
169             Input myInput = ControllerUtils.findInput(pageContext, property);
170             if (myInput == null) {
171                 throw new JspException  ("L'Input " + property + " n'est pas dans la response ");
172             } else {
173                 defaultValue = myInput.getDefaultValue();
174                 if (defaultValue.equals(value)) {
175                     setState("SHOW");
176                 } else {
177                     setState("HIDE");
178                 }
179             }
180         }
181         return super.doStartTag();
182     }
183 
184     /**
185      * Standard doEndTag.
186      *
187      * @return int
188      */
189     public int doEndTag() throws JspException   {
190         int retIntSuper = super.doEndTag();
191         String   resultShow = "";
192         String   resultHide = "";
193         String   result = "";
194 
195         resultShow += "function showLayer" + getId() + "(expand){\n";
196         resultHide += "function hideLayer" + getId() + "(expand){\n";
197 
198         //List des comandes en cascade
199         if (cascadedLayerControl != null) {
200             Iterator   itCascadeLayer = cascadedLayerControl.iterator();
201             boolean isCascadePresent = false;
202             if (itCascadeLayer.hasNext()) {
203                 resultShow += " if( expand == \"EXPAND\"){\n";
204                 resultHide += " if( expand == \"EXPAND\"){\n";
205                 isCascadePresent = true;
206             }
207             while (itCascadeLayer.hasNext()) {
208                 String   idLayerControl = (String  ) itCascadeLayer.next();
209                 resultShow += "   showLayer" + idLayerControl + "('EXPAND');\n";
210                 resultHide += "   hideLayer" + idLayerControl + "('EXPAND');\n";
211             }
212             if (isCascadePresent) {
213                 resultShow += " }\n";
214                 resultHide += " }\n";
215             }
216 
217         }
218 
219         String   jsShow = STR_JS_LAYER;
220         String   jsHide = "";
221 
222         jsShow = StringUtil.replaceString(jsShow, "%id%", getId());
223         jsHide = (jsShow);
224 
225         String   action = SHOW;
226         jsShow = StringUtil.replaceString(jsShow, "%action%", action);
227         action = HIDE;
228         jsHide = StringUtil.replaceString(jsHide, "%action%", action);
229 
230         resultShow += "   " + jsShow + "\n";
231         resultHide += "   " + jsHide + "\n";
232         resultShow += "}";
233         resultHide += "}";
234 
235         result += "\n<script language=\"JavaScript1.2\">\n";
236         result += resultShow + "\n";
237         result += resultHide + "\n";
238         result += "</script>\n";
239         ResponseUtils.write(pageContext, result);
240         return retIntSuper;
241     } /* doEndTag() */
242 
243 
244     /**
245      * Gets the property
246      *
247      * @return Returns a String
248      */
249     public String   getProperty() {
250         return property;
251     }
252 
253     /**
254      * Sets the property
255      *
256      * @param property The property to set
257      */
258     public void setProperty(String   property) {
259         this.property = property;
260     }
261 
262 
263     /**
264      * Gets the value
265      *
266      * @return Returns a String
267      */
268     public String   getValue() {
269         return value;
270     }
271 
272     /**
273      * Sets the value
274      *
275      * @param value The value to set
276      */
277     public void setValue(String   value) {
278         this.value = value;
279     }
280 
281 
282     /**
283      * Gets the value
284      *
285      * @param idLayer The id of layer to add on list
286      * @return Returns boolean false the not have been added
287      */
288     public boolean addLayerToHide(String   idLayer) {
289         if (cascadedLayerControl == null) {
290             cascadedLayerControl = new Vector  ();
291         }
292         return cascadedLayerControl.add(idLayer);
293     }
294 
295 
296 }
297 
298
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