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1
17
18 package org.objectweb.jac.aspects.gui.web;
19
20 import java.io.PrintWriter  ;
21 import java.net.URLEncoder ;
22 import org.apache.log4j.Logger;
23 import org.objectweb.jac.aspects.gui.*;
24 import org.objectweb.jac.core.NameRepository;
25 import org.objectweb.jac.core.rtti.ClassRepository;
26 import org.objectweb.jac.core.rtti.CollectionItem;
27 import org.objectweb.jac.core.rtti.FieldItem;
28
29
32 public abstract class AbstractCollection extends AbstractView
33 implements CollectionListener, CollectionView, HTMLViewer
34 {
35 static Logger loggerEvents = Logger.getLogger("gui.events");
36 static Logger loggerEditor = Logger.getLogger("gui.editor");
37
38 protected CollectionItem collection;
39 protected Object substance;
40 protected CollectionModel model;
41 protected TableSorter sorter;
42 protected TableFilter filter;
43
44 protected boolean autoUpdate = true;
45 protected boolean isEditor = true;
46
47
48 int selected = -1;
49
50
51 int rowsPerPage = 10;
52 protected void setRowsPerPage(int rowsPerPage) {
53 this.rowsPerPage = rowsPerPage;
54 split = rowsPerPage>0;
55 }
56
57
58 boolean split;
59
60
61 boolean showRowNumbers;
62
63
64 int startIndex = 0;
65
66 protected org.objectweb.jac.aspects.gui.CollectionItemView itemView;
67
68 protected boolean viewableItems;
70 protected ObjectChooser rowsPerPageChooser;
71
72 public AbstractCollection(ViewFactory factory, DisplayContext context,
73 CollectionItem collection, Object substance,
74 CollectionModel model,
75 org.objectweb.jac.aspects.gui.CollectionItemView itemView)
76 {
77 super(factory,context);
78
79 this.collection = collection;
80 this.substance = substance;
81 this.model = model;
82 setRowsPerPage(GuiAC.getNumRowsPerPage(collection));
83 this.startIndex = GuiAC.getStartIndex(collection);
84 this.showRowNumbers = GuiAC.isShowRowNumbers(collection);
85 this.itemView = itemView;
86 if (itemView!=null)
87 this.viewableItems = itemView.isViewableItems();
88 init();
89 sort();
90
91 int[] availableNumRowsPerPage = GuiAC.getAvailableNumRowsPerPage(collection);
92 if (availableNumRowsPerPage!=null) {
93 ComboBoxModel comboModel = new ComboBoxModel();
94 for (int i=0; i<availableNumRowsPerPage.length; i++) {
95 int n = availableNumRowsPerPage[i];
96 comboModel.addObject(new Integer (n), n!=0?(""+n):GuiAC.getLabelAll());
97 }
98 rowsPerPageChooser = new ObjectChooser(null,null,comboModel,false);
99 rowsPerPageChooser.setLabel(label+"_rowsPerPageChooser");
100 comboModel.setSelectedItem(""+availableNumRowsPerPage[0]);
101 setRowsPerPage(availableNumRowsPerPage[0]);
102 }
103 }
104
105 public AbstractCollection() {
106 }
107
108 public void setSubstance(Object substance) {
109 this.substance = substance;
110 }
111
112 public Object getSubstance() {
113 return substance;
114 }
115
116 public CollectionModel getCollectionModel() {
117 return model;
118 }
119
120 public boolean isEditor() {
121 return isEditor;
122 }
123
124 public void setEditor(boolean isEditor) {
125 this.isEditor = isEditor;
126 }
127
128 public void setAutoUpdate(boolean autoUpdate) {
129 this.autoUpdate = autoUpdate;
130 }
131
132
139 void genCollectionEvent(PrintWriter out,
140 String event,
141 String icon,
142 String label)
143 {
144 JacRequest request = WebDisplay.getRequest();
145 if (request.isIEUserAgent()) {
146 out.println(
147 "<table class=\"method\"><td>"+
148 iconElement(ResourceManager.getResource(icon),"")+
149 eventURL(label,event,"").toString()+
150 "</td></table>");
151 } else {
152 out.println(
153 eventURL(" "+label,event,"")
154 .add(0,iconElement(ResourceManager.getResource(icon),"").addCssClass("first"))
155 .cssClass("method").toString());
156 }
157 }
158
159
163 public abstract void sort();
164
165
168 protected void init() {}
169
170 public void onView(Object object) {
171 loggerEvents.debug(toString()+".onView("+object+")");
172 selected = model.indexOf(object);
173
174 CollectionPosition extra = new CollectionPosition(
176 this,
177 collection,selected,substance);
178
179 EventHandler.get().onSelection(context,collection,object,
180 null,extra,true);
181 }
182
183
185 protected void genHeader(PrintWriter out) {
186 genHeader(out, true);
187 }
188
189
193 protected void genHeader(PrintWriter out, boolean div) {
194 if (collection.getSubstance(substance)==null)
195 return;
196
197 boolean addable = GuiAC.isAddable(substance,collection);
198 boolean removable = GuiAC.isRemovable(substance,collection);
199 boolean refreshable = showRefreshButton();
200 if (!(addable || refreshable ||
201 (model.getRowCount()>0 && removable) ||
202 (startIndex>0) ||
203 (split && startIndex+rowsPerPage<model.getRowCount()))) {
204 return;
205 }
206 if (div) {
207 out.println("<div class=\"methods\">");
208 }
209 if (addable && isEditor) {
210 if (GuiAC.isAutoCreate(collection)) {
211 genCollectionEvent(out,"onAddToCollection","new_icon",GuiAC.getLabelAdd());
212
216 } else {
217 genCollectionEvent(out,"onAddToCollection","new_icon",GuiAC.getLabelAdd());
218 }
219 }
220 if (startIndex>0) {
221 out.println("<a HREF=\""+eventURL("onFirst")+"\">"+
222 iconElement(ResourceManager.getResource("first_icon"),"first")+
223 "</a>");
224 out.println("<a HREF=\""+eventURL("onPrevious")+"\">"+
225 iconElement(ResourceManager.getResource("previous_icon"),"previous")+
226 "</a>");
227 }
228 if (rowsPerPage>0 && model.getRowCount()>0 &&
229 (startIndex>0 || startIndex+rowsPerPage<model.getRowCount())) {
230 out.println("["+(startIndex+1)+"-"+
231 Math.min(startIndex+rowsPerPage,model.getRowCount())+"/"+
232 model.getRowCount()+"]");
233 }
234 if (split && startIndex+rowsPerPage<model.getRowCount()) {
235 out.println("<a HREF=\""+eventURL("onNext")+"\">"+
236 iconElement(ResourceManager.getResource("next_icon"),"next")+
237 "</a>");
238 out.println("<a HREF=\""+eventURL("onLast")+"\">"+
239 iconElement(ResourceManager.getResource("last_icon"),"last")+
240 "</a>");
241 }
242 if (split && model.getRowCount()>rowsPerPage) {
243 out.println("["+(startIndex/rowsPerPage+1)+"/"+
244 (int)Math.ceil((float)model.getRowCount()/(float)rowsPerPage)+"]");
245 }
246
247 if (rowsPerPageChooser!=null) {
248 out.print("Display ");
249 rowsPerPageChooser.genHTML(out);
250 out.print(" rows");
251 }
252 if (showRefreshButton())
253 genEventAndActionButton(out,"onRefreshCollection");
254
255 if (div) {
256 out.println("</div>");
257 }
258 }
259
260
263 protected boolean showRefreshButton() {
264 return rowsPerPageChooser!=null;
265 }
266
267
270 protected Object getObject(int index) {
271 return model.getObject(index);
272 }
273
274
276 public void setSelected(int index) {
277 selected = index;
278 }
279
280 public void setField(FieldItem field) {
281 collection = (CollectionItem)field;
282 }
283
284 public FieldItem getField() {
285 return collection;
286 }
287
288 public void setValue(Object value) {
289 }
290
291 public void updateModel(Object substance) {
292 }
293
294
296 public void onView(int index) {
297 loggerEvents.debug(toString()+".onView("+index+")");
298 selected = index;
299
300 CollectionPosition extra = new CollectionPosition(
302 this,
303 collection,index,substance);
304
305 EventHandler.get().onSelection(context,collection,getObject(index),
306 null,extra,true);
307 loggerEvents.debug(" ending "+toString()+".onView("+index+"), selected="+selected);
308 }
309
310 public void onViewObject(String name) {
311 Object object = NameRepository.get().getObject(name);
312 EventHandler.get().onSelection(context,collection,object,
313 null,null,true);
314 }
315
316 public void onRemove(int index) {
317 loggerEvents.debug(toString()+".onRemove("+index+")");
318 Object toRemove = getObject(index);
319
320 EventHandler.get()
321 .onRemoveFromCollection(
322 context,
323 new RemoveEvent(
324 this,
325 collection.getSubstance(substance),
326 collection,
327 toRemove),
328 false);
329 }
330
331 public void onTableInvoke(int index,String methodName) {
332 loggerEvents.debug(toString()+".onTableInvoke("+index+")");
333 selected = index;
334 EventHandler.get().onInvoke(
335 context,
336 new InvokeEvent(
337 this,
338 getObject(index),
339 ClassRepository.get().getClass(getObject(index)).getMethod(methodName)));
340 }
341
342 public void onAddToCollection() {
343 EventHandler.get().onAddToCollection(
344 context,
345 new AddEvent(
346 this,
347 collection.getSubstance(substance),
348 collection,
349 null),
350 false);
351 sort();
352 }
353
354 public void onAddExistingToCollection() {
355 EventHandler.get().onAddToCollection(
356 context,
357 new AddEvent(this,collection.getSubstance(substance),collection,null),
358 true);
359 sort();
360 }
361
362 public void onRemoveFromCollection() {
363 EventHandler.get().onRemoveFromCollection(
364 context,
365 new RemoveEvent(this,collection.getSubstance(substance),collection,null),
366 true);
367 sort();
368 }
369
370 public void onNext() {
371 if (startIndex+rowsPerPage<model.getRowCount())
372 startIndex += rowsPerPage;
373 context.getDisplay().refresh();
374 }
375
376 public void onLast() {
377 startIndex = model.getRowCount() - model.getRowCount()%rowsPerPage;
378 if (startIndex==model.getRowCount())
379 startIndex -= rowsPerPage;
380 context.getDisplay().refresh();
381 }
382
383 public void onPrevious() {
384 startIndex -= rowsPerPage;
385 if (startIndex<0)
386 startIndex = 0;
387 context.getDisplay().refresh();
388 }
389
390 public void onFirst() {
391 startIndex = 0;
392 context.getDisplay().refresh();
393 }
394
395 public void onRefreshCollection() {
396 if (rowsPerPageChooser!=null) {
397 rowsPerPageChooser.readValue(
398 ((WebDisplay)context.getDisplay())
399 .getRequest().getParameter(rowsPerPageChooser.getLabel()));
400 setRowsPerPage(((Number )rowsPerPageChooser.getValue()).intValue());
401 }
402 context.getDisplay().refresh();
403 }
404
405
408 protected void checkRange() {
409 if (startIndex>=model.getRowCount()) {
410 if (split) {
411 startIndex = model.getRowCount() - model.getRowCount()%rowsPerPage;
412 if (startIndex==model.getRowCount())
413 startIndex = 0;
414 } else
415 startIndex = 0;
416 }
417 }
418
419
422 protected String removeLink(int position) {
423 return "<a HREF=\""+eventURL("onRemove")+
425 "&index="+position+"\">"+
426 iconElement(ResourceManager.getResource("remove_icon"),"remove")+"</a>";
427 }
428
429 protected String viewLink(int position) {
430 return "<a HREF=\""+eventURL("onView")+
432 "&index="+position+"\">"+
433 iconElement(ResourceManager.getResource("view_icon"),"view")+"</a>";
434 }
435
436
443 protected String sortLink(int column,String text) {
444 SortCriteria criteria = sorter.getSortCriteria(column);
445 String iconResource;
446 if (criteria==null) {
447 iconResource = "small_down_icon";
448 } else {
449 if (criteria.isAscending())
450 iconResource = "small_down_icon_selected";
451 else
452 iconResource = "small_up_icon_selected";
453 }
454 return
455 "<a HREF=\""+eventURL("onHeaderClick")+"&col="+column+"\""
456 + " title=\"sort\">"
457 + iconElement(ResourceManager.getResource(iconResource),"sort")
458 + " " + text
459 + "</a>";
460 }
461
462 boolean disabled = false;
464 public boolean isEnabled() {
465 return !disabled;
466 }
467 public void setEnabled(boolean enabled) {
468 loggerEditor.debug((enabled?"enable ":"disable ")+this);
469 this.disabled = !enabled;
470 }
471 }
472 |
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