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1
17 package org.alfresco.web.ui.common.component;
18
19 import java.io.IOException  ;
20 import java.text.MessageFormat ;
21 import java.util.Map ;
22 import java.util.ResourceBundle ;
23
24 import javax.faces.component.UICommand;
25 import javax.faces.component.UIComponent;
26 import javax.faces.context.FacesContext;
27 import javax.faces.context.ResponseWriter;
28 import javax.faces.el.MethodBinding;
29 import javax.faces.el.ValueBinding;
30 import javax.faces.event.AbortProcessingException;
31 import javax.faces.event.ActionEvent;
32 import javax.faces.event.FacesEvent;
33 import javax.faces.model.SelectItem;
34
35 import org.alfresco.web.app.Application;
36 import org.alfresco.web.ui.common.Utils;
37
38
41 public class UIGenericPicker extends UICommand
42 {
43
44 private final static int ACTION_NONE = -1;
45 private final static int ACTION_SEARCH = 0;
46 private final static int ACTION_CLEAR = 1;
47 private final static int ACTION_FILTER = 2;
48 private final static int ACTION_ADD = 3;
49
50
51 private final static String FIELD_FILTER = "_filter";
52 private final static String FIELD_CONTAINS = "_contains";
53 private final static String FIELD_RESULTS = "_results";
54
55
56 private final static String MSG_SEARCH = "search";
57 private final static String MSG_CLEAR = "clear";
58 private final static String MSG_ADD = "add";
59 private final static String MSG_RESULTS1 = "results_contains";
60 private final static String MSG_RESULTS2 = "results_contains_filter";
61
62 private final static int DEFAULT_HEIGHT = 100;
63 private final static int DEFAULT_WIDTH = 250;
64
65 private MethodBinding queryCallback = null;
66 private Boolean showFilter = null;
67 private Boolean showContains = null;
68 private Boolean showAddButton = null;
69 private Boolean filterRefresh = null;
70 private String addButtonLabel;
71 private Integer width = null;
72 private Integer height = null;
73
74 private SelectItem[] filters = null;
75 private int filterIndex = 0;
76 private String contains = "";
77 private String [] selectedResults = null;
78 private SelectItem[] currentResults = null;
79
80
81
84
87 public UIGenericPicker()
88 {
89 setRendererType(null);
90 }
91
92
95 public String getFamily()
96 {
97 return "org.alfresco.faces.GenericPicker";
98 }
99
100
103 public void restoreState(FacesContext context, Object state)
104 {
105 Object values[] = (Object [])state;
106 super.restoreState(context, values[0]);
108 showFilter = (Boolean )values[1];
109 showContains = (Boolean )values[2];
110 showAddButton = (Boolean )values[3];
111 addButtonLabel = (String )values[4];
112 width = (Integer )values[5];
113 height = (Integer )values[6];
114 filterIndex = (Integer )values[7];
115 contains = (String )values[8];
116 queryCallback = (MethodBinding)values[9];
117 selectedResults = (String [])values[10];
118 currentResults = (SelectItem[])values[11];
119 filters = (SelectItem[])values[12];
120 filterRefresh = (Boolean )values[13];
121 }
122
123
126 public Object saveState(FacesContext context)
127 {
128 Object values[] = new Object [14];
129 values[0] = super.saveState(context);
131 values[1] = showFilter;
132 values[2] = showContains;
133 values[3] = showAddButton;
134 values[4] = addButtonLabel;
135 values[5] = width;
136 values[6] = height;
137 values[7] = filterIndex;
138 values[8] = contains;
139 values[9] = queryCallback;
140 values[10] = selectedResults;
141 values[11] = currentResults;
142 values[12] = filters;
143 values[13] = filterRefresh;
144 return (values);
145 }
146
147
150 public void decode(FacesContext context)
151 {
152 Map requestMap = context.getExternalContext().getRequestParameterMap();
153 Map valuesMap = context.getExternalContext().getRequestParameterValuesMap();
154 String fieldId = getHiddenFieldName();
155 String value = (String )requestMap.get(fieldId);
156
157 int action = ACTION_NONE;
158 if (value != null && value.length() != 0)
159 {
160 action = Integer.parseInt(value);
162 }
163
164
166 int filterIndex = 0;
168 String strFilterIndex = (String )requestMap.get(fieldId + FIELD_FILTER);
169 if (strFilterIndex != null && strFilterIndex.length() != 0)
170 {
171 filterIndex = Integer.parseInt(strFilterIndex);
172 }
173
174 String contains = (String )requestMap.get(fieldId + FIELD_CONTAINS);
176
177 String [] results = (String [])valuesMap.get(fieldId + FIELD_RESULTS);
179
180 PickerEvent event = new PickerEvent(this, action, filterIndex, contains, results);
182 queueEvent(event);
183 }
184
185
188 public void broadcast(FacesEvent event) throws AbortProcessingException
189 {
190 if (event instanceof PickerEvent)
191 {
192 PickerEvent pickerEvent = (PickerEvent)event;
193
194 this.filterIndex = pickerEvent.FilterIndex;
196 this.contains = pickerEvent.Contains;
197 this.selectedResults = pickerEvent.Results;
198
199 switch (pickerEvent.Action)
201 {
202 case ACTION_ADD:
203 super.broadcast(event);
206 break;
207
208 case ACTION_CLEAR:
209 this.contains = "";
210 this.filterIndex = 0;
211 this.selectedResults = null;
212 this.currentResults = null;
213 break;
214
215 case ACTION_FILTER:
216 case ACTION_SEARCH:
218 MethodBinding callback = getQueryCallback();
220 if (callback != null)
221 {
222 Object result = callback.invoke(getFacesContext(), new Object [] {
224 this.filterIndex, this.contains});
225
226 if (result instanceof SelectItem[])
227 {
228 this.currentResults = (SelectItem[])result;
229 }
230 else
231 {
232 this.currentResults = null;
233 }
234 }
235 break;
236 }
237 }
238 else
239 {
240 super.broadcast(event);
241 }
242 }
243
244
247 public void encodeBegin(FacesContext context) throws IOException
248 {
249 if (isRendered() == false)
250 {
251 return;
252 }
253
254 ResponseWriter out = context.getResponseWriter();
255
256 ResourceBundle bundle = Application.getBundle(context);
257
258 String clientId = getClientId(context);
259
260 out.write("<table border=0 cellspacing=4 cellpadding=0>");
262
263 out.write("<tr valign=top><td>");
265
266 if (getShowFilter() == true)
268 {
269 out.write("<select name='");
270 out.write(clientId + FIELD_FILTER);
271 out.write("' size='1'");
272
273 if (getFilterRefresh() == true)
275 {
276 out.write(" onchange=\"");
277 out.write(generateFormSubmit(context, ACTION_FILTER));
278 out.write("\"");
279 }
280
281 out.write(">");
282
283 SelectItem[] items = getFilterOptions();
285 if (items != null)
286 {
287 for (int i=0; i<items.length; i++)
288 {
289 out.write("<option value=\"");
290 out.write(items[i].getValue().toString());
291 if (this.filterIndex != i)
292 {
293 out.write("\">");
294 }
295 else
296 {
297 out.write("\" selected=\"true\">");
298 }
299 out.write(items[i].getLabel());
300 out.write("</option>");
301 }
302 }
303
304 out.write("</select>");
305 }
306 out.write("</td><td align=right>");
307
308 if (getShowContains() == true)
310 {
311 out.write("<input name='");
312 out.write(clientId + FIELD_CONTAINS);
313 out.write("' type='text' maxlength='256' style='width:120px' value=\"");
314 out.write(Utils.replace(this.contains, "\"", """));
315 out.write("\"> ");
316 }
317
318 out.write("<input type='submit' value='");
320 out.write(Utils.encode(bundle.getString(MSG_SEARCH)));
321 out.write("' onclick=\"");
322 out.write(generateFormSubmit(context, ACTION_SEARCH));
323 out.write("\">");
324 out.write("</td></tr>");
325
326 if (this.currentResults != null && getShowContains() == true)
328 {
329 out.write("<tr><td colspan=3>");
330 String resultsMsg;
331 if (getShowFilter() == false)
332 {
333 resultsMsg = MessageFormat.format(bundle.getString(MSG_RESULTS1), new Object [] {this.contains});
334 }
335 else
336 {
337 String filterMsg = this.filters[this.filterIndex].getLabel();
338 resultsMsg = MessageFormat.format(bundle.getString(MSG_RESULTS2), new Object [] {this.contains, filterMsg});
339 }
340 out.write(resultsMsg);
341 out.write(" ");
342 out.write("<a HREF='#' onclick=\"");
343 out.write(generateFormSubmit(context, ACTION_CLEAR));
344 out.write("\">");
345 out.write(Utils.encode(bundle.getString(MSG_CLEAR)));
346 out.write("</a></td></tr>");
347 }
348
349 out.write("<tr><td colspan=2>");
351 out.write("<select size='8' style='width:");
352 out.write(Integer.toString(getWidth()));
353 out.write("px;height:");
354 out.write(Integer.toString(getHeight()));
355 out.write("px' name='");
356 out.write(clientId + FIELD_RESULTS);
357 out.write("' multiple>");
358
359 if (currentResults != null)
361 {
362 for (int i=0; i<currentResults.length; i++)
364 {
365 out.write("<option value=\"");
366 out.write(currentResults[i].getValue().toString());
367 out.write("\">");
368 out.write(currentResults[i].getLabel());
369 out.write("</option>");
370 }
371 }
372
373 out.write("</select>");
375 out.write("</td></tr>");
376
377 if (getShowAddButton() == true)
379 {
380 out.write("<tr><td colspan=2>");
381 out.write("<input type='submit' value='");
382 String msg = getAddButtonLabel();
383 if (msg == null || msg.length() == 0)
384 {
385 msg = bundle.getString(MSG_ADD);
386 }
387 out.write(Utils.encode(msg));
388 out.write("' onclick=\"");
389 out.write(generateFormSubmit(context, ACTION_ADD));
390 out.write("\">");
391 out.write("</td></tr>");
392 }
393
394 out.write("</table>");
396 }
397
398
401 public SelectItem[] getFilterOptions()
402 {
403 if (this.filters == null)
404 {
405 ValueBinding vb = (ValueBinding)getValueBinding("filters");
406 if (vb != null)
407 {
408 this.filters = (SelectItem[])vb.getValue(getFacesContext());
409 }
410 }
411
412 return this.filters;
413 }
414
415
418 public int getFilterIndex()
419 {
420 return this.filterIndex;
421 }
422
423
426 public String getAddButtonLabel()
427 {
428 ValueBinding vb = getValueBinding("addButtonLabel");
429 if (vb != null)
430 {
431 this.addButtonLabel = (String )vb.getValue(getFacesContext());
432 }
433
434 return this.addButtonLabel;
435 }
436
437
440 public void setAddButtonLabel(String addButtonLabel)
441 {
442 this.addButtonLabel = addButtonLabel;
443 }
444
445
448 public boolean getShowAddButton()
449 {
450 ValueBinding vb = getValueBinding("showAddButton");
451 if (vb != null)
452 {
453 this.showAddButton = (Boolean )vb.getValue(getFacesContext());
454 }
455
456 return showAddButton != null ? showAddButton.booleanValue() : true;
457 }
458
459
462 public void setShowAddButton(boolean showAddButton)
463 {
464 this.showAddButton = Boolean.valueOf(showAddButton);
465 }
466
467
470 public boolean getShowContains()
471 {
472 ValueBinding vb = getValueBinding("showContains");
473 if (vb != null)
474 {
475 this.showContains = (Boolean )vb.getValue(getFacesContext());
476 }
477
478 return showContains != null ? showContains.booleanValue() : true;
479 }
480
481
484 public void setShowContains(boolean showContains)
485 {
486 this.showContains = Boolean.valueOf(showContains);
487 }
488
489
492 public boolean getShowFilter()
493 {
494 ValueBinding vb = getValueBinding("showFilter");
495 if (vb != null)
496 {
497 this.showFilter = (Boolean )vb.getValue(getFacesContext());
498 }
499
500 return showFilter != null ? showFilter.booleanValue() : true;
501 }
502
503
506 public void setShowFilter(boolean showFilter)
507 {
508 this.showFilter = Boolean.valueOf(showFilter);
509 }
510
511
514 public boolean getFilterRefresh()
515 {
516 ValueBinding vb = getValueBinding("filterRefresh");
517 if (vb != null)
518 {
519 this.filterRefresh = (Boolean )vb.getValue(getFacesContext());
520 }
521
522 return filterRefresh != null ? filterRefresh.booleanValue() : false;
523 }
524
525
528 public void setFilterRefresh(boolean filterRefresh)
529 {
530 this.filterRefresh = Boolean.valueOf(filterRefresh);
531 }
532
533
536 public int getWidth()
537 {
538 ValueBinding vb = getValueBinding("width");
539 if (vb != null)
540 {
541 this.width = (Integer )vb.getValue(getFacesContext());
542 }
543
544 return width != null ? width.intValue() : DEFAULT_WIDTH;
545 }
546
547
550 public void setWidth(int width)
551 {
552 this.width = Integer.valueOf(width);
553 }
554
555
558 public int getHeight()
559 {
560 ValueBinding vb = getValueBinding("height");
561 if (vb != null)
562 {
563 this.height = (Integer )vb.getValue(getFacesContext());
564 }
565
566 return height != null ? height.intValue() : DEFAULT_HEIGHT;
567 }
568
569
572 public void setHeight(int height)
573 {
574 this.height = Integer.valueOf(height);
575 }
576
577
580 public MethodBinding getQueryCallback()
581 {
582 return this.queryCallback;
583 }
584
585
588 public void setQueryCallback(MethodBinding binding)
589 {
590 this.queryCallback = binding;
591 }
592
593
597 public String [] getSelectedResults()
598 {
599 return this.selectedResults;
600 }
601
602
603
606
611 private String getHiddenFieldName()
612 {
613 return getClientId(getFacesContext());
614 }
615
616
624 private String generateFormSubmit(FacesContext context, int action)
625 {
626 return Utils.generateFormSubmit(context, this, getHiddenFieldName(), Integer.toString(action));
627 }
628
629
630
633
636 public static class PickerEvent extends ActionEvent
637 {
638 public PickerEvent(UIComponent component, int action, int filterIndex, String contains, String [] results)
639 {
640 super(component);
641 Action = action;
642 FilterIndex = filterIndex;
643 Contains = contains;
644 Results = results;
645 }
646
647 public int Action;
648 public int FilterIndex;
649 public String Contains;
650 public String [] Results;
651 }
652 }
653 |
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