2 * Copyright 2011 Electronic Business Systems Ltd.
4 * This file is part of GSS.
6 * GSS is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
11 * GSS is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with GSS. If not, see <http://www.gnu.org/licenses/>.
19 package gr.ebs.gss.client;
21 import static com.google.gwt.query.client.GQuery.$;
22 import gr.ebs.gss.client.CellTreeView.Images;
23 import gr.ebs.gss.client.CellTreeView.RefreshHandler;
24 import gr.ebs.gss.client.rest.GetCommand;
25 import gr.ebs.gss.client.rest.MultipleGetCommand;
26 import gr.ebs.gss.client.rest.RestException;
27 import gr.ebs.gss.client.rest.resource.FileResource;
28 import gr.ebs.gss.client.rest.resource.FolderResource;
29 import gr.ebs.gss.client.rest.resource.MyFolderResource;
30 import gr.ebs.gss.client.rest.resource.OtherUserResource;
31 import gr.ebs.gss.client.rest.resource.OthersFolderResource;
32 import gr.ebs.gss.client.rest.resource.OthersResource;
33 import gr.ebs.gss.client.rest.resource.RestResource;
34 import gr.ebs.gss.client.rest.resource.RestResourceWrapper;
35 import gr.ebs.gss.client.rest.resource.SharedFolderResource;
36 import gr.ebs.gss.client.rest.resource.SharedResource;
37 import gr.ebs.gss.client.rest.resource.TrashFolderResource;
38 import gr.ebs.gss.client.rest.resource.TrashResource;
39 import gwtquery.plugins.draggable.client.DragAndDropManager;
40 import gwtquery.plugins.draggable.client.DraggableOptions;
41 import gwtquery.plugins.draggable.client.StopDragException;
42 import gwtquery.plugins.draggable.client.DraggableOptions.CursorAt;
43 import gwtquery.plugins.draggable.client.DraggableOptions.DragFunction;
44 import gwtquery.plugins.draggable.client.DraggableOptions.RevertOption;
45 import gwtquery.plugins.draggable.client.events.DragContext;
46 import gwtquery.plugins.droppable.client.DroppableOptions;
47 import gwtquery.plugins.droppable.client.DroppableOptions.DroppableFunction;
48 import gwtquery.plugins.droppable.client.events.DragAndDropContext;
49 import gwtquery.plugins.droppable.client.gwt.DragAndDropNodeInfo;
51 import java.util.ArrayList;
52 import java.util.Arrays;
53 import java.util.HashMap;
54 import java.util.List;
57 import com.google.gwt.cell.client.AbstractCell;
58 import com.google.gwt.cell.client.Cell;
59 import com.google.gwt.cell.client.ValueUpdater;
60 import com.google.gwt.core.client.GWT;
61 import com.google.gwt.dom.client.Style.Cursor;
62 import com.google.gwt.query.client.plugins.GQueryUi;
63 import com.google.gwt.safehtml.client.SafeHtmlTemplates;
64 import com.google.gwt.safehtml.shared.SafeHtml;
65 import com.google.gwt.safehtml.shared.SafeHtmlBuilder;
66 import com.google.gwt.user.client.DeferredCommand;
67 import com.google.gwt.user.client.Window;
68 import com.google.gwt.user.client.ui.AbstractImagePrototype;
69 import com.google.gwt.view.client.AsyncDataProvider;
70 import com.google.gwt.view.client.HasData;
71 import com.google.gwt.view.client.ListDataProvider;
72 import com.google.gwt.view.client.ProvidesKey;
73 import com.google.gwt.view.client.SingleSelectionModel;
74 import com.google.gwt.view.client.TreeViewModel;
82 public class CellTreeViewModel implements TreeViewModel{
84 private final ListDataProvider<RestResource> rootNodes = new ListDataProvider<RestResource>();
85 private Map<String,FolderResource> folderCache=new HashMap<String, FolderResource>();
87 SingleSelectionModel<RestResource> selectionModel;
88 Map<String, MyFolderDataProvider> mymap = new HashMap<String, MyFolderDataProvider>();
89 Map<String, MyFolderDataProvider> sharedmap = new HashMap<String, MyFolderDataProvider>();
90 Map<String, MyFolderDataProvider> othersmap = new HashMap<String, MyFolderDataProvider>();
91 static interface Templates extends SafeHtmlTemplates {
92 Templates INSTANCE = GWT.create(Templates.class);
94 @Template(" <div id='dragHelper' class='{0}'></div>")
95 SafeHtml outerHelper(String cssClassName);
98 static void configureDragOperation(final DraggableOptions options) {
100 // set a custom element as drag helper. The content of the helper will be
101 // set when the drag will start
102 options.setHelper($(Templates.INSTANCE.outerHelper(
103 "drag").asString()));
104 // opacity of the drag helper
105 options.setOpacity((float) 0.9);
106 // cursor during the drag operation
107 options.setCursor(Cursor.MOVE);
108 // the cell being greater than the helper, force the position of the
109 // helper on the mouse cursor.
110 options.setCursorAt(new CursorAt(10, 10, null, null));
111 // append the helper to the body element
112 options.setAppendTo("body");
113 // set the revert option
114 options.setRevert(RevertOption.ON_INVALID_DROP);
115 options.setOnBeforeDragStart(new DragFunction() {
118 public void f(DragContext context) {
119 RestResource value = context.getDraggableData();
120 if(value instanceof TrashResource || value instanceof SharedResource || value instanceof OthersResource || value instanceof OtherUserResource){
121 throw new StopDragException();
126 // use a Function to fill the content of the helper
127 // we could also add a DragStartEventHandler on the DragAndDropTreeCell and
128 // DragAndDropCellList.
130 options.setOnDragStart(new DragFunction() {
131 public void f(DragContext context) {
132 RestResourceWrapper memberInfo = context.getDraggableData();
133 context.getHelper().setInnerHTML(memberInfo.getName());
142 public CellTreeViewModel(final Images _images,SingleSelectionModel<RestResource> selectionModel ) {
145 this.selectionModel=selectionModel;
148 private final Cell<RestResource> departmentCell = new AbstractCell<RestResource>("contextmenu"){
151 public void render(com.google.gwt.cell.client.Cell.Context arg0, RestResource arg1, SafeHtmlBuilder arg2) {
155 if(arg1 instanceof TrashFolderResource){
156 html = AbstractImagePrototype.create(images.folderYellow()).getHTML();
157 FolderResource res = ((RestResourceWrapper)arg1).getResource();
158 name = res.getName();
159 id = res.getParentName() +"."+name;
161 else if(arg1 instanceof RestResourceWrapper){
162 FolderResource res = ((RestResourceWrapper)arg1).getResource();
164 html = AbstractImagePrototype.create(images.sharedFolder()).getHTML();
165 else if(res.getParentName()==null){
166 html = AbstractImagePrototype.create(images.home()).getHTML();
169 html = AbstractImagePrototype.create(images.folderYellow()).getHTML();
170 name = res.getName();
171 if(res.getParentName() != null){
172 id = res.getParentName()+"."+name;
178 else if(arg1 instanceof TrashResource){
179 html = AbstractImagePrototype.create(images.trash()).getHTML();
184 else if(arg1 instanceof SharedResource){
185 html = AbstractImagePrototype.create(images.myShared()).getHTML();
189 else if(arg1 instanceof OthersResource){
190 html = AbstractImagePrototype.create(images.othersShared()).getHTML();
191 name = "Other's Shared";
194 else if(arg1 instanceof OtherUserResource){
195 html = AbstractImagePrototype.create(images.permUser()).getHTML();
196 name = ((OtherUserResource)arg1).getName();
199 arg2.appendHtmlConstant(html);
200 arg2.appendHtmlConstant("<span id='"+id +"'"+ " class='papala'>");
201 arg2.appendEscaped(name);
202 arg2.appendHtmlConstant("</span>");
205 public void onBrowserEvent(Cell.Context context, com.google.gwt.dom.client.Element parent, RestResource value, com.google.gwt.dom.client.NativeEvent event, com.google.gwt.cell.client.ValueUpdater<RestResource> valueUpdater) {
206 if(event.getType().equals("contextmenu")){
207 selectionModel.setSelected(value, true);
208 GSS.get().getTreeView().showPopup(event.getClientX(), event.getClientY());
216 public <T> NodeInfo<?> getNodeInfo(final T value) {
219 DragAndDropNodeInfo n = new DragAndDropNodeInfo<RestResource>(getRootNodes(), departmentCell,
220 selectionModel, null);
221 configureFolderDrop(n);
222 configureDragOperation(n.getDraggableOptions());
225 else if (value instanceof MyFolderResource) {
227 MyFolderDataProvider dataProvider = new MyFolderDataProvider(
228 ((MyFolderResource) value),MyFolderResource.class);
229 DragAndDropNodeInfo<RestResource> n = new DragAndDropNodeInfo<RestResource>(dataProvider, departmentCell,
230 selectionModel, new ResourceValueUpdater());
231 mymap.put(((MyFolderResource) value).getUri(), dataProvider);
233 // permission cell are not draggable
234 //n.setCellDroppableOnly();
235 configureFolderDrop(n);
236 configureDragOperation(n.getDraggableOptions());
240 else if (value instanceof SharedResource) {
242 MyFolderDataProvider dataProvider = new MyFolderDataProvider(
243 ((SharedResource) value), SharedFolderResource.class);
244 sharedmap.put(((SharedResource) value).getUri(), dataProvider);
245 DragAndDropNodeInfo<RestResource> n = new DragAndDropNodeInfo<RestResource>(dataProvider, departmentCell,
246 selectionModel, new ResourceValueUpdater());
247 configureFolderDrop(n);
248 configureDragOperation(n.getDraggableOptions());
251 else if (value instanceof TrashResource) {
253 ListDataProvider<RestResource> trashProvider = new ListDataProvider<RestResource>();
254 List<RestResource> r = new ArrayList<RestResource>();
255 for(FolderResource f : GSS.get().getTreeView().getTrash().getFolders()){
256 r.add(new TrashFolderResource(f));
258 trashProvider.setList(r);
259 DragAndDropNodeInfo<RestResource> n = new DragAndDropNodeInfo<RestResource>(trashProvider, departmentCell,
260 selectionModel, new ResourceValueUpdater());
261 configureFolderDrop(n);
262 configureDragOperation(n.getDraggableOptions());
265 else if (value instanceof OthersResource) {
267 OthersDataProvider dataProvider = new OthersDataProvider(
268 ((OthersResource) value), SharedFolderResource.class);
269 DragAndDropNodeInfo<RestResource> n = new DragAndDropNodeInfo<RestResource>(dataProvider, departmentCell,
270 selectionModel, null);
271 configureFolderDrop(n);
272 configureDragOperation(n.getDraggableOptions());
275 else if (value instanceof SharedFolderResource) {
277 MyFolderDataProvider dataProvider = new MyFolderDataProvider(
278 ((SharedFolderResource) value),SharedFolderResource.class);
279 DragAndDropNodeInfo<RestResource> n = new DragAndDropNodeInfo<RestResource>(dataProvider, departmentCell,
280 selectionModel, new ResourceValueUpdater());
281 sharedmap.put(((SharedFolderResource) value).getUri(), dataProvider);
282 configureFolderDrop(n);
283 configureDragOperation(n.getDraggableOptions());
286 else if (value instanceof OthersFolderResource) {
288 MyFolderDataProvider dataProvider = new MyFolderDataProvider(
289 ((OthersFolderResource) value),OthersFolderResource.class);
290 DragAndDropNodeInfo<RestResource> n = new DragAndDropNodeInfo<RestResource>(dataProvider, departmentCell,
291 selectionModel, new ResourceValueUpdater());
292 //nodeInfos.put(((OthersFolderResource) value).getUri(), n);
293 othersmap.put(((SharedFolderResource) value).getUri(), dataProvider);
294 configureFolderDrop(n);
295 configureDragOperation(n.getDraggableOptions());
298 else if (value instanceof OtherUserResource) {
300 MyFolderDataProvider dataProvider = new MyFolderDataProvider(
301 ((OtherUserResource) value),OthersFolderResource.class);
302 DragAndDropNodeInfo<RestResource> n = new DragAndDropNodeInfo<RestResource>(dataProvider, departmentCell,
303 selectionModel, new ResourceValueUpdater());
304 configureFolderDrop(n);
305 configureDragOperation(n.getDraggableOptions());
308 // TODO Auto-generated method stub
312 private void configureFolderDrop(DragAndDropNodeInfo<RestResource> n){
313 DroppableOptions options = n.getDroppableOptions();
314 options.setDroppableHoverClass("droppableHover");
315 // use a DroppableFunction here. We can also add a DropHandler in the tree
318 options.setOnOver(new DroppableFunction() {
321 public void f(final DragAndDropContext context) {
322 if(context.getDroppableData()!=null && context.getDroppableData() instanceof RestResource){
324 GSS.get().getTreeView().getUtils().openNodeContainingResource((RestResource) context.getDroppableData(), new RefreshHandler() {
327 public void onRefresh() {
329 DragAndDropManager.getInstance().update(context);//initialize(context, GQueryUi.Event.create(com.google.gwt.user.client.Event.getCurrentEvent()));
340 options.setOnDrop(new DroppableFunction() {
342 public void f(DragAndDropContext context) {
344 DnDFolderPopupMenu popup ;
345 if(context.getDraggableData() instanceof FileResource){
346 popup = new DnDFolderPopupMenu(images, ((MyFolderResource) context.getDroppableData()).getResource(), Arrays.asList(context.getDraggableData()));
349 popup = new DnDFolderPopupMenu(images, ((MyFolderResource) context.getDroppableData()).getResource(), context.getDraggableData());
350 int left = context.getDroppable().getAbsoluteLeft() + 40;
351 int top = context.getDroppable().getAbsoluteTop() + 20;
352 popup.setPopupPosition(left, top);
360 public boolean isLeaf(Object value) {
361 if(value instanceof RestResourceWrapper)
362 return ((RestResourceWrapper)value).getResource().getFolders().size()==0;
363 else if(value instanceof TrashResource)
364 return ((TrashResource)value).getFolders().size()==0;
365 else if(value instanceof SharedResource)
366 return ((SharedResource)value).getFolders().size()==0;
367 else if(value instanceof OthersResource)
368 return ((OthersResource)value).getOtherUsers().size()==0;
369 else if(value instanceof OtherUserResource)
370 return ((OtherUserResource)value).getFolders().size()==0;
374 class ResourceValueUpdater implements ValueUpdater<RestResource>{
377 public void update(final RestResource value) {
378 if(value instanceof MyFolderResource){
379 GetCommand<FolderResource> gf = new GetCommand<FolderResource>(FolderResource.class, value.getUri(), null) {
382 public void onComplete() {
383 FolderResource rootResource = getResult();
384 //((MyFolderResource)value).getResource().setFiles(rootResource.getFiles());
385 ((MyFolderResource)value).setResource(rootResource);
386 if(GSS.get().getTreeView().getSelection().getUri().equals(value.getUri()))
387 selectionModel.setSelected(value, true);
388 GSS.get().onResourceUpdate(value);
393 public void onError(Throwable t) {
394 GWT.log("Error fetching root folder", t);
395 GSS.get().displayError("Unable to fetch root folder");
399 DeferredCommand.addCommand(gf);
401 else if(value instanceof TrashResource){
402 DeferredCommand.addCommand(new GetCommand<TrashResource>(TrashResource.class, GSS.get().getCurrentUserResource().getTrashPath(), null) {
404 public void onComplete() {
405 //trash = getResult();
406 for(RestResource r : getRootNodes().getList()){
407 if(r instanceof TrashResource)
408 getRootNodes().getList().set(getRootNodes().getList().indexOf(r),GSS.get().getTreeView().getTrash());
410 GSS.get().getTreeView().updateNodeChildren(GSS.get().getTreeView().getTrash());
414 public void onError(Throwable t) {
415 if(t instanceof RestException){
416 int statusCode = ((RestException)t).getHttpStatusCode();
417 // On IE status code 1223 may be returned instead of 204.
418 if(statusCode == 204 || statusCode == 1223){
419 //trash = new TrashResource(GSS.get().getCurrentUserResource().getTrashPath());
423 GSS.get().displayError("Unable to fetch trash folder:"+t.getMessage());
424 //GSS.get().getTreeView().getTrash() = new TrashResource(GSS.get().getCurrentUserResource().getTrashPath());
430 else if(value instanceof OthersFolderResource){
437 class MyFolderDataProvider extends AsyncDataProvider<RestResource>{
438 private RestResource restResource;
439 private Class resourceClass;
440 public MyFolderDataProvider(RestResource department, Class resourceClass) {
441 super(new ProvidesKey<RestResource>() {
444 public Object getKey(RestResource item) {
445 return item.getUri();
447 this.restResource = department;
448 this.resourceClass=resourceClass;
452 protected void onRangeChanged(final HasData<RestResource> view) {
457 * Retrieve the restResource.
459 * @return the restResource
461 public RestResource getRestResource() {
467 * Modify the restResource.
469 * @param restResource the restResource to set
471 public void setRestResource(RestResource restResource) {
472 this.restResource = restResource;
474 List<RestResource> res =null;
475 public void refresh(final RefreshHandler refresh){
476 FolderResource cache = null;
477 if(restResource instanceof RestResourceWrapper && !((RestResourceWrapper)restResource).getResource().isNeedsExpanding())
478 cache = ((RestResourceWrapper)restResource).getResource();
479 GetCommand<FolderResource> gf = new GetCommand<FolderResource>(FolderResource.class, restResource.getUri(),cache ) {
482 public void onComplete() {
483 if(restResource instanceof RestResourceWrapper){
484 ((RestResourceWrapper)restResource).setResource(getResult());//restResource = getResult();
485 ((RestResourceWrapper)restResource).getResource().setNeedsExpanding(false);
487 if(usedCachedVersion()&&res!=null){
489 updateRowCount(res.size(), true);
490 updateRowData(0,res);
493 String[] folderPaths = null;
494 if(resourceClass.equals(MyFolderResource.class))
495 folderPaths=((MyFolderResource) restResource).getResource().getSubfolderPaths().toArray(new String[] {});
496 else if(resourceClass.equals(SharedFolderResource.class) && restResource instanceof SharedResource)
497 folderPaths=((SharedResource) restResource).getSubfolderPaths().toArray(new String[] {});
498 else if(resourceClass.equals(SharedFolderResource.class)){
499 folderPaths=((SharedFolderResource) restResource).getResource().getSubfolderPaths().toArray(new String[] {});
500 GWT.log("------------>"+folderPaths);
502 else if(resourceClass.equals(TrashFolderResource.class))
503 folderPaths=((TrashFolderResource) restResource).getResource().getSubfolderPaths().toArray(new String[] {});
504 else if(resourceClass.equals(OthersFolderResource.class) && restResource instanceof OtherUserResource)
505 folderPaths=((OtherUserResource) restResource).getSubfolderPaths().toArray(new String[] {});
506 else if(resourceClass.equals(OthersFolderResource.class))
507 folderPaths=((OthersFolderResource) restResource).getResource().getSubfolderPaths().toArray(new String[] {});
508 MultipleGetCommand.Cached[] cached = null;
509 if(restResource instanceof RestResourceWrapper)
510 cached=((RestResourceWrapper)restResource).getResource().getCache();
511 MultipleGetCommand<FolderResource> gf2 = new MultipleGetCommand<FolderResource>(FolderResource.class,
512 folderPaths, cached) {
515 public void onComplete() {
516 res = new ArrayList<RestResource>();
517 for(FolderResource r : getResult()){
521 else if(resourceClass.equals(MyFolderResource.class))
522 res.add(new MyFolderResource(r));
523 else if(resourceClass.equals(SharedFolderResource.class)){
524 res.add(new SharedFolderResource(r));
526 else if(resourceClass.equals(TrashFolderResource.class))
527 res.add(new TrashFolderResource(r));
528 else if(resourceClass.equals(OthersFolderResource.class))
529 res.add(new OthersFolderResource(r));
531 if(restResource instanceof RestResourceWrapper)
532 ((RestResourceWrapper)restResource).getResource().setFolders(getResult());
533 updateRowCount(res.size(), true);
534 updateRowData(0,res);
540 public void onError(Throwable t) {
541 GSS.get().displayError("Unable to fetch subfolders");
542 GWT.log("Unable to fetch subfolders", t);
546 public void onError(String p, Throwable throwable) {
547 GWT.log("Path:"+p, throwable);
551 DeferredCommand.addCommand(gf2);
556 public void onError(Throwable t) {
558 GWT.log("Error fetching root folder", t);
559 GSS.get().displayError("Unable to fetch root folder");
563 DeferredCommand.addCommand(gf);
568 class OthersDataProvider extends AsyncDataProvider<RestResource>{
569 private RestResource restResource;
570 private Class resourceClass;
571 public OthersDataProvider(RestResource department, Class resourceClass) {
572 super(new ProvidesKey<RestResource>() {
575 public Object getKey(RestResource item) {
576 return item.getUri();
578 this.restResource = department;
579 this.resourceClass=resourceClass;
583 protected void onRangeChanged(final HasData<RestResource> view) {
588 * Retrieve the restResource.
590 * @return the restResource
592 public RestResource getRestResource() {
598 * Modify the restResource.
600 * @param restResource the restResource to set
602 public void setRestResource(RestResource restResource) {
603 this.restResource = restResource;
606 public void refresh(final RefreshHandler refresh){
607 GetCommand<OthersResource> go = new GetCommand<OthersResource>(OthersResource.class,
608 restResource.getUri(), null) {
611 public void onComplete() {
612 final OthersResource others = getResult();
613 MultipleGetCommand<OtherUserResource> gogo = new MultipleGetCommand<OtherUserResource>(OtherUserResource.class,
614 others.getOthers().toArray(new String[] {}), null) {
617 public void onComplete() {
618 List<OtherUserResource> res = getResult();
619 updateRowCount(res.size(), true);
620 List<RestResource> r = new ArrayList<RestResource>();
626 public void onError(Throwable t) {
627 GWT.log("Error fetching Others Root folder", t);
628 GSS.get().displayError("Unable to fetch Others Root folder");
632 public void onError(String p, Throwable throwable) {
633 GWT.log("Path:"+p, throwable);
636 DeferredCommand.addCommand(gogo);
640 public void onError(Throwable t) {
641 GWT.log("Error fetching Others Root folder", t);
642 GSS.get().displayError("Unable to fetch Others Root folder");
645 DeferredCommand.addCommand(go);
652 * Retrieve the rootNodes.
654 * @return the rootNodes
656 public ListDataProvider<RestResource> getRootNodes() {
662 * Retrieve the mymap.
666 public Map<String, MyFolderDataProvider> getMymap() {
672 * Retrieve the sharedmap.
674 * @return the sharedmap
676 public Map<String, MyFolderDataProvider> getSharedmap() {
682 * Retrieve the othersmap.
684 * @return the othersmap
686 public Map<String, MyFolderDataProvider> getOthersmap() {