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1
17 package org.alfresco.web.ui.repo.renderer;
18
19 import java.io.IOException  ;
20 import java.io.Writer ;
21 import java.util.Map ;
22
23 import javax.faces.component.NamingContainer;
24 import javax.faces.component.UIComponent;
25 import javax.faces.context.FacesContext;
26 import javax.transaction.UserTransaction ;
27
28 import org.alfresco.repo.security.permissions.AccessDeniedException;
29 import org.alfresco.service.cmr.repository.ChildAssociationRef;
30 import org.alfresco.service.cmr.repository.InvalidNodeRefException;
31 import org.alfresco.service.cmr.repository.NodeRef;
32 import org.alfresco.service.cmr.repository.NodeService;
33 import org.alfresco.service.cmr.repository.Path;
34 import org.alfresco.web.bean.repository.Repository;
35 import org.alfresco.web.ui.common.Utils;
36 import org.alfresco.web.ui.common.renderer.BaseRenderer;
37 import org.alfresco.web.ui.repo.component.UINodeDescendants;
38 import org.alfresco.web.ui.repo.component.UINodePath;
39
40
43 public class NodePathLinkRenderer extends BaseRenderer
44 {
45
48
51 public void decode(FacesContext context, UIComponent component)
52 {
53 Map requestMap = context.getExternalContext().getRequestParameterMap();
54 String fieldId = getHiddenFieldName(context, component);
55 String value = (String )requestMap.get(fieldId);
56
57 if (value != null && value.startsWith(component.getClientId(context) + NamingContainer.SEPARATOR_CHAR))
59 {
60 String selectedNodeId = value.substring(component.getClientId(context).length() + 1);
63 NodeRef ref = new NodeRef(Repository.getStoreRef(), selectedNodeId);
64
65 UINodePath.PathElementEvent event = new UINodePath.PathElementEvent(component, ref);
66 component.queueEvent(event);
67 }
68 }
69
70
73 public void encodeEnd(FacesContext context, UIComponent component) throws IOException
74 {
75 if (component.isRendered() == false)
77 {
78 return;
79 }
80
81 Writer out = context.getResponseWriter();
82
83 Path path = null;
85 NodeRef nodeRef = null;
86 Object val = ((UINodePath)component).getValue();
87 if (val instanceof NodeRef == true)
88 {
89 nodeRef = (NodeRef)val;
90 }
91 else if (val instanceof Path == true)
92 {
93 path = (Path)val;
94 }
95 else
96 {
97 throw new IllegalArgumentException ("UINodePath component 'value' property must resolve to a NodeRef or Path!");
98 }
99
100 boolean isBreadcrumb = false;
101 Boolean breadcrumb = (Boolean )component.getAttributes().get("breadcrumb");
102 if (breadcrumb != null)
103 {
104 isBreadcrumb = breadcrumb.booleanValue();
105 }
106
107 boolean isDisabled = false;
108 Boolean disabled = (Boolean )component.getAttributes().get("disabled");
109 if (disabled != null)
110 {
111 isDisabled = disabled.booleanValue();
112 }
113
114 boolean showLeaf = false;
115 Boolean showLeafBool = (Boolean )component.getAttributes().get("showLeaf");
116 if (showLeafBool != null)
117 {
118 showLeaf = showLeafBool.booleanValue();
119 }
120
121 NodeService service = getNodeService(context);
123 UserTransaction tx = null;
124 try
125 {
126 tx = Repository.getUserTransaction(FacesContext.getCurrentInstance(), true);
127 tx.begin();
128
129 if (path == null)
130 {
131 path = service.getPath(nodeRef);
132 }
133
134 if (isBreadcrumb == false || isDisabled == true)
135 {
136 out.write(buildPathAsSingular(context, component, path, showLeaf, isDisabled));
137 }
138 else
139 {
140 out.write(buildPathAsBreadcrumb(context, component, path, showLeaf));
141 }
142
143 tx.commit();
144 }
145 catch (InvalidNodeRefException refErr)
146 {
147 try { if (tx != null) {tx.rollback();} } catch (Exception tex) {}
149 }
150 catch (AccessDeniedException accessErr)
151 {
152 try { if (tx != null) {tx.rollback();} } catch (Exception tex) {}
154 }
155 catch (Throwable err)
156 {
157 try { if (tx != null) {tx.rollback();} } catch (Exception tex) {}
158 throw new RuntimeException (err);
159 }
160 }
161
162
171 private String buildPathAsBreadcrumb(FacesContext context, UIComponent component, Path path, boolean showLeaf)
172 {
173 StringBuilder buf = new StringBuilder (1024);
174
175 int size = (showLeaf ? path.size() : path.size() - 1);
176 for (int i=0; i<size; i++)
177 {
178 Path.Element element = path.get(i);
179 String elementString = null;
180 if (element instanceof Path.ChildAssocElement)
181 {
182 ChildAssociationRef elementRef = ((Path.ChildAssocElement)element).getRef();
183 if (elementRef.getParentRef() != null)
184 {
185 String name = Repository.getNameForNode(getNodeService(context), elementRef.getChildRef());
186 elementString = renderPathElement(context, component, elementRef.getChildRef(), name);
187 }
188 }
189 else
190 {
191 elementString = element.getElementString();
192 }
193
194 if (elementString != null)
195 {
196 buf.append("/");
197 buf.append(elementString);
198 }
199 }
200
201 return buf.toString();
202 }
203
204
213 private String buildPathAsSingular(FacesContext context, UIComponent component, Path path, boolean showLeaf, boolean disabled)
214 {
215 StringBuilder buf = new StringBuilder (512);
216
217 NodeRef lastElementRef = null;
218 int size = (showLeaf ? path.size() : path.size() - 1);
219 for (int i=0; i<size; i++)
220 {
221 Path.Element element = path.get(i);
222 String elementString = null;
223 if (element instanceof Path.ChildAssocElement)
224 {
225 ChildAssociationRef elementRef = ((Path.ChildAssocElement)element).getRef();
226 if (elementRef.getParentRef() != null)
227 {
228 elementString = Repository.getNameForNode(getNodeService(context), elementRef.getChildRef());
229 }
230 if (i == path.size() - 2)
231 {
232 lastElementRef = elementRef.getChildRef();
233 }
234 }
235 else
236 {
237 elementString = element.getElementString();
238 }
239
240 if (elementString != null)
241 {
242 buf.append("/");
243 buf.append(elementString);
244 }
245 }
246
247 if (disabled == false)
248 {
249 return renderPathElement(context, component, lastElementRef, buf.toString());
250 }
251 else
252 {
253 return buf.toString();
254 }
255 }
256
257
267 private String renderPathElement(FacesContext context, UIComponent control, NodeRef nodeRef, String label)
268 {
269 StringBuilder buf = new StringBuilder (256);
270
271 buf.append("<a HREF='#' onclick=\"");
272 String param = control.getClientId(context) + NamingContainer.SEPARATOR_CHAR + nodeRef.getId();
274 buf.append(Utils.generateFormSubmit(context, control, getHiddenFieldName(context, control), param));
275 buf.append('"');
276 Map attrs = control.getAttributes();
277 if (attrs.get("style") != null)
278 {
279 buf.append(" style=\"")
280 .append(attrs.get("style"))
281 .append('"');
282 }
283 if (attrs.get("styleClass") != null)
284 {
285 buf.append(" class=")
286 .append(attrs.get("styleClass"));
287 }
288 buf.append('>');
289
290 buf.append(Utils.encode(label));
291
292 buf.append("</a>");
293
294 return buf.toString();
295 }
296
297
298
301
307 private static String getHiddenFieldName(FacesContext context, UIComponent component)
308 {
309 return Utils.getParentForm(context, component).getClientId(context) + NamingContainer.SEPARATOR_CHAR + "npath";
310 }
311
312
319 private static NodeService getNodeService(FacesContext context)
320 {
321 NodeService service = Repository.getServiceRegistry(context).getNodeService();
322 if (service == null)
323 {
324 throw new IllegalStateException ("Unable to obtain NodeService bean reference.");
325 }
326
327 return service;
328 }
329 }
330 |
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