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16 package org.apache.myfaces.renderkit.html.ext;
17
18 import org.apache.commons.logging.Log;
19 import org.apache.commons.logging.LogFactory;
20 import org.apache.myfaces.component.html.ext.HtmlMessage;
21 import org.apache.myfaces.component.html.ext.HtmlMessages;
22 import org.apache.myfaces.renderkit.RendererUtils;
23 import org.apache.myfaces.renderkit.html.HtmlMessageRendererBase;
24
25 import javax.faces.application.FacesMessage;
26 import javax.faces.component.UIColumn;
27 import javax.faces.component.UIComponent;
28 import javax.faces.component.ValueHolder;
29 import javax.faces.component.html.HtmlOutputLabel;
30 import javax.faces.component.html.HtmlOutputText;
31 import javax.faces.context.FacesContext;
32 import java.io.IOException  ;
33 import java.text.MessageFormat ;
34 import java.util.HashMap ;
35 import java.util.Iterator ;
36 import java.util.List ;
37 import java.util.Map ;
38
39
74 public class HtmlMessageRenderer
75 extends HtmlMessageRendererBase
76 {
77 private static final Log log = LogFactory.getLog(HtmlMessageRenderer.class);
78
79 private static final String OUTPUT_LABEL_MAP = HtmlMessageRenderer.class.getName() + ".OUTPUT_LABEL_MAP";
80
81 public void encodeEnd(FacesContext facesContext, UIComponent component)
82 throws IOException
83 {
84 super.encodeEnd(facesContext, component); renderMessage(facesContext, component);
86 }
87
88 protected String getSummary(FacesContext facesContext,
89 UIComponent message,
90 FacesMessage facesMessage,
91 String msgClientId)
92 {
93 String msgSummary = facesMessage.getSummary();
94 if (msgSummary == null) return null;
95
96 String inputLabel = null;
97 if (msgClientId != null) inputLabel = findInputLabel(facesContext, msgClientId);
98 if (inputLabel == null) inputLabel = "";
99
100 if(((message instanceof HtmlMessages && ((HtmlMessages) message).isReplaceIdWithLabel()) ||
101 (message instanceof HtmlMessage && ((HtmlMessage) message).isReplaceIdWithLabel()))&&
102 inputLabel.length()!=0)
103 msgSummary = msgSummary.replaceAll(findInputId(facesContext, msgClientId),inputLabel);
104
105
106 String summaryFormat;
107 if (message instanceof HtmlMessage)
108 {
109 summaryFormat = ((HtmlMessage)message).getSummaryFormat();
110 }
111 else
112 {
113 summaryFormat = (String )message.getAttributes().get("summaryFormat");
114 }
115
116 if (summaryFormat == null) return msgSummary;
117
118 MessageFormat format = new MessageFormat (summaryFormat, facesContext.getViewRoot().getLocale());
119
120 return format.format(new Object [] {msgSummary, inputLabel});
121 }
122
123 protected String getDetail(FacesContext facesContext,
124 UIComponent message,
125 FacesMessage facesMessage,
126 String msgClientId)
127 {
128 String msgDetail = facesMessage.getDetail();
129 if (msgDetail == null) return null;
130
131 String inputLabel = null;
132 if (msgClientId != null) inputLabel = findInputLabel(facesContext, msgClientId);
133 if (inputLabel == null) inputLabel = "";
134
135 if(((message instanceof HtmlMessages && ((HtmlMessages) message).isReplaceIdWithLabel()) ||
136 (message instanceof HtmlMessage && ((HtmlMessage) message).isReplaceIdWithLabel()))&&
137 inputLabel.length()!=0)
138 msgDetail = msgDetail.replaceAll(findInputId(facesContext, msgClientId),inputLabel);
139
140 String detailFormat;
141 if (message instanceof HtmlMessage)
142 {
143 detailFormat = ((HtmlMessage)message).getDetailFormat();
144 }
145 else
146 {
147 detailFormat = (String )message.getAttributes().get("detailFormat");
148 }
149
150 if (detailFormat == null) return msgDetail;
151
152 MessageFormat format = new MessageFormat (detailFormat, facesContext.getViewRoot().getLocale());
153 return format.format(new Object [] {msgDetail, inputLabel});
154 }
155
156
157 public static String findInputLabel(FacesContext facesContext, String inputClientId)
158 {
159 Map outputLabelMap = getOutputLabelMap(facesContext);
160 MessageLabelInfo info = ((MessageLabelInfo)outputLabelMap.get(inputClientId));
161
162 if(info == null)
163 {
164 UIComponent comp = facesContext.getViewRoot().findComponent(inputClientId);
165
166 UIComponent parent=comp;
167
168 while(parent != null && !((parent=parent.getParent())instanceof UIColumn));
169
170 if(parent != null)
171 {
172 UIColumn column = (UIColumn) parent;
173
174 if(column.getHeader()!=null)
175 {
176 UIComponent header = column.getHeader();
177
178 return getComponentText(facesContext, header);
179 }
180 }
181 }
182
183 return info==null?null:info.getText();
184 }
185
186 public static String findInputId(FacesContext facesContext, String inputClientId)
187 {
188 Map outputLabelMap = getOutputLabelMap(facesContext);
189 MessageLabelInfo info = ((MessageLabelInfo)outputLabelMap.get(inputClientId));
190
191 if(info == null)
192 {
193 UIComponent comp = facesContext.getViewRoot().findComponent(inputClientId);
194
195 if(comp!=null)
196 {
197 return comp.getId();
198 }
199 }
200
201 return info==null?null:(info.getForComponent()==null?null:info.getForComponent().getId());
202 }
203
204
209 private static Map getOutputLabelMap(FacesContext facesContext)
210 {
211 Map map = (Map )facesContext.getExternalContext().getRequestMap().get(OUTPUT_LABEL_MAP);
212 if (map == null)
213 {
214 map = new HashMap ();
215 createOutputLabelMap(facesContext, facesContext.getViewRoot(), map);
216 facesContext.getExternalContext().getRequestMap().put(OUTPUT_LABEL_MAP, map);
217 }
218 return map;
219 }
220
221 private static void createOutputLabelMap(FacesContext facesContext,
222 UIComponent root,
223 Map map)
224 {
225 for (Iterator it = root.getFacetsAndChildren(); it.hasNext(); )
226 {
227 UIComponent child = (UIComponent)it.next();
228 if (child instanceof HtmlOutputLabel)
229 {
230 String forAttr = ((HtmlOutputLabel)child).getFor();
231 UIComponent input = child.findComponent(forAttr);
232 if (input == null)
233 {
234 log.warn("Unable to find component '" + forAttr + "' (calling findComponent on component '" + child.getClientId(facesContext) + "')");
235 }
236 else
237 {
238 map.put(input.getClientId(facesContext),
239 new MessageLabelInfo(
240 input,getComponentText(facesContext, (HtmlOutputLabel)child)));
241 }
242 }
243 else
244 {
245 createOutputLabelMap(facesContext, child, map);
246 }
247 }
248 }
249
250 private static String getComponentText(FacesContext facesContext, UIComponent component)
251 {
252 String text = null;
253
254 if(component instanceof ValueHolder)
255 {
256 text=RendererUtils.getStringValue(facesContext, component);
257 }
258
259 if (text == null)
260 {
261 StringBuffer buf = new StringBuffer ();
262 List li = component.getChildren();
263
264 for (int i = 0; i < li.size(); i++)
265 {
266 UIComponent child = (UIComponent) li.get(i);
267
268 if(child instanceof HtmlOutputText)
269 {
270 String str = RendererUtils.getStringValue(facesContext, child);
271
272 if(str!=null)
273 buf.append(str);
274 }
275 }
276
277 text = buf.toString();
278 }
279 return text;
280 }
281
282 public static class MessageLabelInfo
283 {
284 private UIComponent _forComponent;
285 private String _text;
286
287 public MessageLabelInfo(UIComponent forComponent, String text)
288 {
289 _forComponent = forComponent;
290 _text = text;
291 }
292
293 public UIComponent getForComponent()
294 {
295 return _forComponent;
296 }
297
298 public void setForComponent(UIComponent forComponent)
299 {
300 _forComponent = forComponent;
301 }
302
303 public String getText()
304 {
305 return _text;
306 }
307
308 public void setText(String text)
309 {
310 _text = text;
311 }
312 }
313 }
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