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1
16 package javax.faces.component;
17
18 import java.util.ArrayList  ;
19 import java.util.ConcurrentModificationException ;
20 import java.util.List ;
21 import java.util.ListIterator ;
22 import java.util.Locale ;
23
24 import javax.faces.context.FacesContext;
25 import javax.faces.el.ValueBinding;
26 import javax.faces.event.AbortProcessingException;
27 import javax.faces.event.FacesEvent;
28 import javax.faces.event.PhaseId;
29 import javax.faces.render.RenderKitFactory;
30
31
60 public class UIViewRoot
61 extends UIComponentBase
62 {
63 public static final String UNIQUE_ID_PREFIX = "_id";
64 public static final int ANY_PHASE_ORDINAL = PhaseId.ANY_PHASE.getOrdinal();
65
66 private int _uniqueIdCounter = 0;
67
68 private String _viewId = null;
69 private Locale _locale = null;
70 private List _events = null;
71
72 public String getViewId()
73 {
74 return _viewId;
75 }
76
77 public void setViewId(String viewId)
78 {
79 if (viewId == null) throw new NullPointerException ("viewId");
80 _viewId = viewId;
81 }
82
83 public void queueEvent(FacesEvent event)
84 {
85 if (event == null) throw new NullPointerException ("event");
86 if (_events == null)
87 {
88 _events = new ArrayList ();
89 }
90 _events.add(event);
91 }
92
93 private void _broadcastForPhase(PhaseId phaseId)
94 {
95 if (_events == null) return;
96
97 boolean abort = false;
98
99 int phaseIdOrdinal = phaseId.getOrdinal();
100 for (ListIterator listiterator = _events.listIterator(); listiterator.hasNext();)
101 {
102 FacesEvent event = (FacesEvent) listiterator.next();
103 int ordinal = event.getPhaseId().getOrdinal();
104 if (ordinal == ANY_PHASE_ORDINAL ||
105 ordinal == phaseIdOrdinal)
106 {
107 UIComponent source = event.getComponent();
108 try
109 {
110 source.broadcast(event);
111 }
112 catch (AbortProcessingException e)
113 {
114 abort = true;
118 break;
119 } finally {
120
121 try
122 {
123 listiterator.remove();
124 }
125 catch(ConcurrentModificationException cme)
126 {
127 int eventIndex = listiterator.previousIndex();
128 _events.remove(eventIndex);
129 listiterator = _events.listIterator();
130 }
131 }
132 }
133 }
134
135 if (abort) {
136 clearEvents();
138 }
139 }
140
141
142 private void clearEvents()
143 {
144 _events = null;
145 }
146
147
148 public void processDecodes(FacesContext context)
149 {
150 if (context == null) throw new NullPointerException ("context");
151 super.processDecodes(context);
152 _broadcastForPhase(PhaseId.APPLY_REQUEST_VALUES);
153 if (context.getRenderResponse() || context.getResponseComplete())
154 {
155 clearEvents();
156 }
157 }
158
159 public void processValidators(FacesContext context)
160 {
161 if (context == null) throw new NullPointerException ("context");
162 super.processValidators(context);
163 _broadcastForPhase(PhaseId.PROCESS_VALIDATIONS);
164 if (context.getRenderResponse() || context.getResponseComplete())
165 {
166 clearEvents();
167 }
168 }
169
170 public void processUpdates(FacesContext context)
171 {
172 if (context == null) throw new NullPointerException ("context");
173 super.processUpdates(context);
174 _broadcastForPhase(PhaseId.UPDATE_MODEL_VALUES);
175 if (context.getRenderResponse() || context.getResponseComplete())
176 {
177 clearEvents();
178 }
179 }
180
181 public void processApplication(FacesContext context)
182 {
183 if (context == null) throw new NullPointerException ("context");
184 _broadcastForPhase(PhaseId.INVOKE_APPLICATION);
185 if (context.getRenderResponse() || context.getResponseComplete())
186 {
187 clearEvents();
188 }
189 }
190
191 public void encodeBegin(FacesContext context)
192 throws java.io.IOException
193 {
194 _uniqueIdCounter = 0;
195 clearEvents();
196 super.encodeBegin(context);
197 }
198
199 public String createUniqueId()
200 {
201 return UNIQUE_ID_PREFIX + _uniqueIdCounter++;
202 }
203
204 public Locale getLocale()
205 {
206 if (_locale != null) return _locale;
207 ValueBinding vb = getValueBinding("locale");
208 FacesContext facesContext = getFacesContext();
209 if (vb == null)
210 {
211 return facesContext.getApplication().getViewHandler().calculateLocale(facesContext);
212 }
213 Object locale = vb.getValue(facesContext);
214 if (locale == null)
215 {
216 return facesContext.getApplication().getViewHandler().calculateLocale(facesContext);
217 }
218 if (locale instanceof Locale )
219 {
220 return (Locale )locale;
221 }
222 else if (locale instanceof String )
223 {
224 return getLocale((String )locale);
225 }
226 else
227 {
228 throw new IllegalArgumentException ("locale binding"); }
230 }
231
232
239 private static Locale getLocale(String locale){
240 int cnt = 0;
241 int pos = 0;
242 int prev = 0;
243
244 String [] lv = new String [3];
250 Locale l=null;
251
252 while((pos=locale.indexOf('_',prev))!=-1){
253 lv[cnt++] = locale.substring(prev,pos);
254 prev = pos + 1;
255 }
256
257 lv[cnt++] = locale.substring(prev,locale.length());
258
259 switch(cnt){
260 case 1:
261 l = new Locale (lv[0]);
263 break;
264 case 2:
265 l = new Locale (lv[0],lv[1]);
267 break;
268 case 3:
269 l = new Locale (lv[0], lv[1], lv[2]);
271 break;
272 }
273 return l;
274 }
275
276
277 public void setLocale(Locale locale)
278 {
279 _locale = locale;
280 }
281
282
284 public static final String COMPONENT_TYPE = "javax.faces.ViewRoot";
285 public static final String COMPONENT_FAMILY = "javax.faces.ViewRoot";
286 private static final String DEFAULT_RENDERKITID = RenderKitFactory.HTML_BASIC_RENDER_KIT;
287
288 private String _renderKitId = null;
289
290 public String getFamily()
291 {
292 return COMPONENT_FAMILY;
293 }
294
295
296 public void setRenderKitId(String renderKitId)
297 {
298 _renderKitId = renderKitId;
299 }
300
301 public String getRenderKitId()
302 {
303 if (_renderKitId != null) return _renderKitId;
304 ValueBinding vb = getValueBinding("renderKitId");
305 return vb != null ? (String )vb.getValue(getFacesContext()) : DEFAULT_RENDERKITID;
306 }
307
308
309
310 public Object saveState(FacesContext context)
311 {
312 Object values[] = new Object [4];
313 values[0] = super.saveState(context);
314 values[1] = _locale;
315 values[2] = _renderKitId;
316 values[3] = _viewId;
317 return values;
318 }
319
320 public void restoreState(FacesContext context, Object state)
321 {
322 Object values[] = (Object [])state;
323 super.restoreState(context, values[0]);
324 _locale = (Locale )values[1];
325 _renderKitId = (String )values[2];
326 _viewId = (String )values[3];
327 }
328 } |
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