code.grnet.gr Git - pithos/blob - src/gr/ebs/gss/client/PopupTree.java

   1 /*
   2  * Copyright 2008, 2009, 2010 Electronic Business Systems Ltd.
   3  *
   4  * This file is part of GSS.
   5  *
   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.
  10  *
  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.
  15  *
  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/>.
  18  */
  19 package gr.ebs.gss.client;
  20
  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.GroupUserResource;
  25 import gr.ebs.gss.client.rest.resource.OtherUserResource;
  26 import gr.ebs.gss.client.rest.resource.OthersResource;
  27 import gr.ebs.gss.client.rest.resource.TrashResource;
  28
  29 import com.google.gwt.dom.client.NativeEvent;
  30 import com.google.gwt.event.dom.client.ContextMenuEvent;
  31 import com.google.gwt.event.dom.client.ContextMenuHandler;
  32 import com.google.gwt.event.dom.client.KeyCodes;
  33 import com.google.gwt.event.logical.shared.OpenEvent;
  34 import com.google.gwt.event.logical.shared.OpenHandler;
  35 import com.google.gwt.event.logical.shared.SelectionEvent;
  36 import com.google.gwt.event.logical.shared.SelectionHandler;
  37 import com.google.gwt.user.client.DOM;
  38 import com.google.gwt.user.client.Event;
  39 import com.google.gwt.user.client.History;
  40 import com.google.gwt.user.client.ui.Tree;
  41 import com.google.gwt.user.client.ui.TreeItem;
  42
  43 /**
  44  * @author kman
  45  */
  46 public class PopupTree extends Tree {
  47
  48         private FolderContextMenu menu;
  49
  50         private Images images;
  51
  52         private boolean ctrlKeyPressed = false;
  53
  54         private boolean leftClicked = false;
  55
  56         private boolean rightClicked = false;
  57
  58         private TreeItem treeSelectedItem = null;
  59
  60         public PopupTree(Images theImages) {
  61                 super(theImages);
  62                 images = theImages;
  63                 sinkEvents(Event.ONCONTEXTMENU);
  64                 sinkEvents(Event.ONMOUSEUP);
  65 //              sinkEvents(Event.ONMOUSEDOWN);
  66
  67                 addSelectionHandler(new SelectionHandler<TreeItem>() {
  68
  69                         @Override
  70                         public void onSelection(SelectionEvent<TreeItem> event) {
  71                                 TreeItem item = event.getSelectedItem();
  72                                 processItemSelected(item, true);
  73
  74                                 String path = GSS.get().getApiPath() +  GSS.get().getCurrentUserResource().getUsername()+ "/";
  75
  76                                 if(GSS.get().getFolders().isTrash(item)){
  77                                         TrashResource currentObject = (TrashResource) GSS.get().getFolders().getCurrent().getUserObject();
  78                                         History.newItem(currentObject.getUri().substring(path.lastIndexOf("/")) + GSS.get().getFolders().getCurrent().getText());
  79                                 }else if (GSS.get().getFolders().isMyShares(item)){
  80                                         GroupUserResource currentObject = (GroupUserResource)GSS.get().getFolders().getCurrent().getUserObject();
  81                                         History.newItem(currentObject.getUri().substring(path.lastIndexOf("/")) + GSS.get().getFolders().getCurrent().getText());
  82                                 }else if (GSS.get().getFolders().isOthersShared(item)){
  83                                         OthersResource currentObject = (OthersResource) GSS.get().getFolders().getCurrent().getUserObject();
  84                                         History.newItem(currentObject.getUri().substring(path.lastIndexOf("/")) + GSS.get().getFolders().getCurrent().getText());
  85                                 }else{
  86                                         FolderResource currentObject = (FolderResource) GSS.get().getFolders().getCurrent().getUserObject();
  87                                         History.newItem("Files" + currentObject.getParentURI().substring(path.lastIndexOf("/")) + GSS.get().getFolders().getCurrent().getText());
  88                                 }
  89
  90                         }
  91                 });
  92
  93                 addOpenHandler(new OpenHandler<TreeItem>() {
  94
  95                         @Override
  96                         public void onOpen(OpenEvent<TreeItem> event) {
  97                                 TreeItem item = event.getTarget();
  98                                 if (item != null && item.getState())
  99                                         GSS.get().getFolders().update(item);
 100
 101                         }
 102                 });
 103                 addHandler(new ContextMenuHandler() {
 104
 105                         @Override
 106                         public void onContextMenu(ContextMenuEvent event) {
 107                                 TreeItem item = getSelectedItem();
 108                                 if (item != null) {
 109                                         int left = item.getAbsoluteLeft() + 40;
 110                                         int top = item.getAbsoluteTop() + 20;
 111                                         showPopup(left, top);
 112                                 }
 113
 114                         }
 115                 }, ContextMenuEvent.getType());
 116                 // DOM.setStyleAttribute(getElement(), "position", "static");
 117
 118         }
 119
 120         @Override
 121         public void onBrowserEvent(Event event) {
 122                 if (DOM.eventGetType(event) == Event.ONCLICK)
 123                         return;
 124
 125                 switch (DOM.eventGetType(event)) {
 126                         case Event.ONKEYDOWN:
 127                                 int key = DOM.eventGetKeyCode(event);
 128                                 if (key == KeyCodes.KEY_CTRL)
 129                                         ctrlKeyPressed = true;
 130                                 break;
 131
 132                         case Event.ONKEYUP:
 133                                 key = DOM.eventGetKeyCode(event);
 134                                 if (key == KeyCodes.KEY_CTRL)
 135                                         ctrlKeyPressed = false;
 136                                 break;
 137
 138                         case Event.ONMOUSEDOWN:
 139                                 if (DOM.eventGetButton(event) == NativeEvent.BUTTON_RIGHT)
 140                                         rightClicked = true;
 141                                 else if (DOM.eventGetButton(event) == NativeEvent.BUTTON_LEFT)
 142                                         leftClicked = true;
 143                                 break;
 144
 145                         case Event.ONMOUSEUP:
 146                                 if (DOM.eventGetButton(event) == NativeEvent.BUTTON_RIGHT)
 147                                         rightClicked = false;
 148                                 else if (DOM.eventGetButton(event) == NativeEvent.BUTTON_LEFT)
 149                                         leftClicked = false;
 150                                 break;
 151                 }
 152
 153                 super.onBrowserEvent(event);
 154         }
 155
 156         protected void showPopup(final int x, final int y) {
 157                 if (treeSelectedItem == null)
 158                         return;
 159                 if (menu != null)
 160                         menu.hide();
 161                 menu = new FolderContextMenu(images);
 162                 menu.setPopupPosition(x, y);
 163                 menu.show();
 164         }
 165
 166         public void processItemSelected(TreeItem item, boolean fireEvents) {
 167
 168                 if (GSS.get().getCurrentSelection() == null || !GSS.get().getCurrentSelection().equals(item.getUserObject()))
 169                         GSS.get().setCurrentSelection(item.getUserObject());
 170                 if (!GSS.get().isFileListShowing())
 171                         GSS.get().showFileList();
 172
 173                 // refresh Others Shared Node
 174                 if (GSS.get().getFolders().isOthersShared(item)) {
 175                         GSS.get().getFolders().update(item);
 176                         GSS.get().showFileList();
 177                 }
 178                 // refresh Others Shared User Node
 179 //               else if(GSS.get().getFolders().isOthersSharedItem(item) &&
 180 //               item.getUserObject() instanceof UserDTO)
 181 //               GSS.get().getFolders().update(item);
 182
 183                 if (!item.equals(treeSelectedItem))
 184                         processSelection(item);
 185                 if (rightClicked) {
 186                         rightClicked = false;
 187                         int left = item.getAbsoluteLeft() + 40;
 188                         int top = item.getAbsoluteTop() + 20;
 189                         showPopup(left, top);
 190                 } else if (leftClicked && ctrlKeyPressed) {
 191                         leftClicked = false;
 192                         ctrlKeyPressed = false;
 193                         int left = item.getAbsoluteLeft() + 40;
 194                         int top = item.getAbsoluteTop() + 20;
 195                         showPopup(left, top);
 196                 }
 197         }
 198
 199         public void clearSelection() {
 200                 if (treeSelectedItem != null)
 201                         ((DnDTreeItem) treeSelectedItem).getContent().removeStyleName("gss-SelectedRow");
 202                 // treeSelectedItem.getWidget().removeStyleName("gss-SelectedRow");
 203
 204                 treeSelectedItem = null;
 205                 setSelectedItem(null, true);
 206                 GSS.get().setCurrentSelection(null);
 207         }
 208
 209         private void processSelection(TreeItem item) {
 210                 if (treeSelectedItem != null) {
 211                         GSS.get().setCurrentSelection(null);
 212                         // treeSelectedItem.getWidget().removeStyleName("gss-SelectedRow");
 213                         ((DnDTreeItem) treeSelectedItem).getContent().removeStyleName("gss-SelectedRow");
 214                         treeSelectedItem = null;
 215                         setSelectedItem(null, true);
 216                 }
 217                 treeSelectedItem = item;
 218                 setSelectedItem(item, true);
 219                 // ensureSelectedItemVisible();
 220                 if (((DnDTreeItem) item).getFolderResource() != null)
 221                         GSS.get().setCurrentSelection(((DnDTreeItem) item).getFolderResource());
 222                 if (item.getUserObject() instanceof FolderResource)
 223                         GSS.get().setCurrentSelection(item.getUserObject());
 224                 else if (item.getUserObject() instanceof OtherUserResource)
 225                         GSS.get().setCurrentSelection(item.getUserObject());
 226                 else if (GSS.get().getFolders().isTrash(item))
 227                         GSS.get().setCurrentSelection(null);
 228                 // item.getWidget().addStyleName("gss-SelectedRow");
 229                 ((DnDTreeItem) item).getContent().addStyleName("gss-SelectedRow");
 230                 // if(GSS.get().getFolders().isFileItem(item)||GSS.get().getFolders().isTrashItem(item)||GSS.get().getFolders().isMySharedItem(item))
 231                 GSS.get().showFileList(true);
 232         }
 233
 234         /**
 235          * Retrieve the selectedItem.
 236          *
 237          * @return the selectedItem
 238          */
 239         public TreeItem getTreeSelectedItem() {
 240                 return treeSelectedItem;
 241         }
 242
 243         /**
 244          * Modify the selectedItem.
 245          *
 246          * @param newSelectedItem the selectedItem to set
 247          */
 248         public void setTreeSelectedItem(TreeItem newSelectedItem) {
 249                 treeSelectedItem = newSelectedItem;
 250         }
 251
 252 }