2 * Copyright 2008, 2009, 2010 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 gr.ebs.gss.client.Folders.Images;
22 import gr.ebs.gss.client.dnd.DnDTreeItem;
23 import gr.ebs.gss.client.rest.resource.FolderResource;
24 import gr.ebs.gss.client.rest.resource.OtherUserResource;
25 import gr.ebs.gss.client.rest.resource.OthersResource;
26 import gr.ebs.gss.client.rest.resource.RestResource;
27 import gr.ebs.gss.client.rest.resource.SharedResource;
28 import gr.ebs.gss.client.rest.resource.TrashResource;
30 import java.util.Iterator;
32 import com.google.gwt.dom.client.NativeEvent;
33 import com.google.gwt.event.dom.client.ContextMenuEvent;
34 import com.google.gwt.event.dom.client.ContextMenuHandler;
35 import com.google.gwt.event.dom.client.KeyCodes;
36 import com.google.gwt.event.logical.shared.OpenEvent;
37 import com.google.gwt.event.logical.shared.OpenHandler;
38 import com.google.gwt.event.logical.shared.SelectionEvent;
39 import com.google.gwt.event.logical.shared.SelectionHandler;
40 import com.google.gwt.user.client.DOM;
41 import com.google.gwt.user.client.Event;
42 import com.google.gwt.user.client.ui.Tree;
43 import com.google.gwt.user.client.ui.TreeItem;
48 public class PopupTree extends Tree {
50 private FolderContextMenu menu;
52 private Images images;
54 private boolean ctrlKeyPressed = false;
56 private boolean leftClicked = false;
58 private boolean rightClicked = false;
60 private TreeItem treeSelectedItem = null;
62 public PopupTree(Images theImages) {
65 sinkEvents(Event.ONCONTEXTMENU);
66 sinkEvents(Event.ONMOUSEUP);
67 // sinkEvents(Event.ONMOUSEDOWN);
69 addSelectionHandler(new SelectionHandler<TreeItem>() {
72 public void onSelection(SelectionEvent<TreeItem> event) {
73 TreeItem treeItem = event.getSelectedItem();
74 processItemSelected(treeItem);
75 String path = GSS.get().getApiPath() + GSS.get().getCurrentUserResource().getUsername()+ "/";
76 String constructedUri = ((RestResource) GSS.get().getFolders().getCurrent().getUserObject()).constructUri(treeItem, path);
77 GSS.get().updateHistory(constructedUri);
81 addOpenHandler(new OpenHandler<TreeItem>() {
84 public void onOpen(OpenEvent<TreeItem> event) {
85 TreeItem item = event.getTarget();
86 if (item != null && item.getState())
87 GSS.get().getFolders().update(item);
91 addHandler(new ContextMenuHandler() {
94 public void onContextMenu(ContextMenuEvent event) {
95 TreeItem item = getSelectedItem();
97 int left = item.getAbsoluteLeft() + 40;
98 int top = item.getAbsoluteTop() + 20;
103 }, ContextMenuEvent.getType());
104 // DOM.setStyleAttribute(getElement(), "position", "static");
109 public void onBrowserEvent(Event event) {
110 if (DOM.eventGetType(event) == Event.ONCLICK)
113 switch (DOM.eventGetType(event)) {
114 case Event.ONKEYDOWN:
115 int key = DOM.eventGetKeyCode(event);
116 if (key == KeyCodes.KEY_CTRL)
117 ctrlKeyPressed = true;
121 key = DOM.eventGetKeyCode(event);
122 if (key == KeyCodes.KEY_CTRL)
123 ctrlKeyPressed = false;
126 case Event.ONMOUSEDOWN:
127 if (DOM.eventGetButton(event) == NativeEvent.BUTTON_RIGHT)
129 else if (DOM.eventGetButton(event) == NativeEvent.BUTTON_LEFT)
133 case Event.ONMOUSEUP:
134 if (DOM.eventGetButton(event) == NativeEvent.BUTTON_RIGHT)
135 rightClicked = false;
136 else if (DOM.eventGetButton(event) == NativeEvent.BUTTON_LEFT)
141 super.onBrowserEvent(event);
144 protected void showPopup(final int x, final int y) {
145 if (treeSelectedItem == null)
149 menu = new FolderContextMenu(images);
150 menu.setPopupPosition(x, y);
154 public void processItemSelected(TreeItem item) {
155 if (GSS.get().getCurrentSelection() == null || !GSS.get().getCurrentSelection().equals(item.getUserObject()))
156 GSS.get().setCurrentSelection(item.getUserObject());
157 if (!GSS.get().isFileListShowing())
158 GSS.get().showFileList();
160 // refresh Others Shared Node
161 if (GSS.get().getFolders().isOthersShared(item)){
162 GSS.get().getFolders().update(item);
163 GSS.get().showFileList();
166 if (!item.equals(treeSelectedItem))
167 processSelection(item);
169 rightClicked = false;
170 int left = item.getAbsoluteLeft() + 40;
171 int top = item.getAbsoluteTop() + 20;
172 showPopup(left, top);
173 } else if (leftClicked && ctrlKeyPressed) {
175 ctrlKeyPressed = false;
176 int left = item.getAbsoluteLeft() + 40;
177 int top = item.getAbsoluteTop() + 20;
178 showPopup(left, top);
182 public void clearSelection() {
183 if (treeSelectedItem != null)
184 ((DnDTreeItem) treeSelectedItem).getContent().removeStyleName("gss-SelectedRow");
185 // treeSelectedItem.getWidget().removeStyleName("gss-SelectedRow");
187 treeSelectedItem = null;
188 setSelectedItem(null, true);
189 GSS.get().setCurrentSelection(null);
192 private void processSelection(TreeItem item) {
193 if (treeSelectedItem != null) {
194 GSS.get().setCurrentSelection(null);
195 // treeSelectedItem.getWidget().removeStyleName("gss-SelectedRow");
196 ((DnDTreeItem) treeSelectedItem).getContent().removeStyleName("gss-SelectedRow");
197 treeSelectedItem = null;
198 setSelectedItem(null, true);
200 treeSelectedItem = item;
201 setSelectedItem(item, true);
202 // ensureSelectedItemVisible();
203 if (((DnDTreeItem) item).getFolderResource() != null)
204 GSS.get().setCurrentSelection(((DnDTreeItem) item).getFolderResource());
205 if (item.getUserObject() instanceof FolderResource)
206 GSS.get().setCurrentSelection(item.getUserObject());
207 else if (item.getUserObject() instanceof OtherUserResource)
208 GSS.get().setCurrentSelection(item.getUserObject());
209 else if (GSS.get().getFolders().isTrash(item))
210 GSS.get().setCurrentSelection(null);
211 // item.getWidget().addStyleName("gss-SelectedRow");
212 ((DnDTreeItem) item).getContent().addStyleName("gss-SelectedRow");
213 // if(GSS.get().getFolders().isFileItem(item)||GSS.get().getFolders().isTrashItem(item)||GSS.get().getFolders().isMySharedItem(item))
214 GSS.get().showFileList(true);
218 * Retrieve the selectedItem.
220 * @return the selectedItem
222 public TreeItem getTreeSelectedItem() {
223 return treeSelectedItem;
227 * Modify the selectedItem.
229 * @param newSelectedItem the selectedItem to set
231 public void setTreeSelectedItem(TreeItem newSelectedItem) {
232 treeSelectedItem = newSelectedItem;
235 * Method that takes a folderName and finds the corresponding treeItem object and returns it
236 * @param historyToken
240 public TreeItem getTreeItem (String historyToken){
241 // String historyTokenOriginal = historyToken.replace("+", " ");
242 String path = GSS.get().getApiPath() + GSS.get().getCurrentUserResource().getUsername()+ "/";
243 String rootText = DisplayHelper.trim(GSS.get().getFolders().getRootItem().getText());
244 String uriToGet = "Files/files/" + rootText;
245 Iterator<TreeItem> it = GSS.get().getFolders().getPopupTree().treeItemIterator() ;
247 String constructedUri = "";
248 TreeItem treeItem = it.next();
249 if(treeItem.getUserObject() instanceof TrashResource){
250 TrashResource currentObject = (TrashResource) treeItem.getUserObject();
251 constructedUri = constructedUri + currentObject.constructUri(treeItem,path);
253 if(treeItem.getUserObject() instanceof SharedResource){
254 SharedResource currentObject = (SharedResource) treeItem.getUserObject();
255 constructedUri = constructedUri + currentObject.constructUri(treeItem, path);
257 if(treeItem.getUserObject() instanceof OthersResource){
258 OthersResource currentObject = (OthersResource) treeItem.getUserObject();
259 constructedUri = constructedUri + currentObject.constructUri(treeItem, path);
261 if(treeItem.getUserObject() instanceof OtherUserResource){
262 OtherUserResource currentObject = (OtherUserResource) treeItem.getUserObject();
263 constructedUri = constructedUri + currentObject.constructUri(treeItem, path);
265 if(treeItem.getUserObject() instanceof FolderResource){
266 FolderResource currentObject = (FolderResource) treeItem.getUserObject();
267 constructedUri = constructedUri + currentObject.constructUri(treeItem, path);
269 if(constructedUri.equals(historyToken))
272 return expandHiddenItems(uriToGet);
277 public TreeItem expandHiddenItems(String tokenInput){
279 // this method handles objects that are not constructed during loading the application
280 // and when there's a need to seek them inside some non-expanded folder
281 // This method is not implemented yet and in case of a non-constructed object
282 // returns the home/root folder
283 // treeItem.getState() method returns always false so the OpenEvent.fire() method
284 // fails to expand the parent folder in the UI
286 GSS.get().getFolders().getRootItem().getText();
287 TreeItem treeItem = getTreeItem(tokenInput);
288 OpenEvent.fire(GSS.get().getFolders().getPopupTree(), treeItem);