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

   1 /*
   2  * Copyright 2007, 2008, 2009 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.commands.CopyCommand;
  22 import gr.ebs.gss.client.commands.CutCommand;
  23 import gr.ebs.gss.client.commands.DeleteCommand;
  24 import gr.ebs.gss.client.commands.PasteCommand;
  25 import gr.ebs.gss.client.commands.PropertiesCommand;
  26 import gr.ebs.gss.client.commands.RefreshCommand;
  27 import gr.ebs.gss.client.commands.RestoreTrashCommand;
  28 import gr.ebs.gss.client.commands.ToTrashCommand;
  29 import gr.ebs.gss.client.commands.UploadFileCommand;
  30 import gr.ebs.gss.client.dnd.DnDTreeItem;
  31 import gr.ebs.gss.client.rest.resource.FileResource;
  32 import gr.ebs.gss.client.rest.resource.FolderResource;
  33
  34 import java.util.List;
  35
  36 import com.google.gwt.event.dom.client.ClickEvent;
  37 import com.google.gwt.event.dom.client.ClickHandler;
  38 import com.google.gwt.event.dom.client.ContextMenuEvent;
  39 import com.google.gwt.resources.client.ClientBundle;
  40 import com.google.gwt.resources.client.ImageResource;
  41 import com.google.gwt.user.client.Command;
  42 import com.google.gwt.user.client.Event;
  43 import com.google.gwt.user.client.ui.AbstractImagePrototype;
  44 import com.google.gwt.user.client.ui.MenuBar;
  45 import com.google.gwt.user.client.ui.MenuItem;
  46 import com.google.gwt.user.client.ui.PopupPanel;
  47 import com.google.gwt.user.client.ui.TreeItem;
  48
  49 /**
  50  * The 'File Context' menu implementation.
  51  */
  52 public class FileContextMenu extends PopupPanel implements ClickHandler {
  53
  54         /**
  55          * The widget's images.
  56          */
  57         private final Images images;
  58
  59         private MenuItem cutItem;
  60
  61         private MenuItem copyItem;
  62
  63         private MenuItem pasteItem;
  64
  65         private MenuItem updateItem;
  66
  67         private MenuItem sharingItem;
  68
  69         private MenuItem propItem;
  70
  71         private MenuItem trashItem;
  72
  73         private MenuItem deleteItem;
  74
  75         private MenuItem downloadItem;
  76
  77         private MenuItem saveAsItem;
  78
  79         /**
  80          * The image bundle for this widget's images that reuses images defined in
  81          * other menus.
  82          */
  83         public interface Images extends ClientBundle,FileMenu.Images, EditMenu.Images {
  84
  85                 @Source("gr/ebs/gss/resources/mimetypes/document.png")
  86                 ImageResource fileContextMenu();
  87
  88                 @Source("gr/ebs/gss/resources/doc_versions.png")
  89                 ImageResource versions();
  90
  91                 @Override
  92                 @Source("gr/ebs/gss/resources/group.png")
  93                 ImageResource sharing();
  94
  95                 @Override
  96                 @Source("gr/ebs/gss/resources/border_remove.png")
  97                 ImageResource unselectAll();
  98
  99                 @Source("gr/ebs/gss/resources/demo.png")
 100                 ImageResource viewImage();
 101 }
 102
 103         public static native String getDate()/*-{
 104                 return (new Date()).toUTCString();
 105         }-*/;
 106
 107         /**
 108          * The widget's constructor.
 109          *
 110          * @param newImages the image bundle passed on by the parent object
 111          */
 112         public FileContextMenu(Images newImages, boolean isTrash, boolean isEmpty) {
 113                 // The popup's constructor's argument is a boolean specifying that it
 114                 // auto-close itself when the user clicks outside of it.
 115                 super(true);
 116                 GSS gss = GSS.get();
 117                 setAnimationEnabled(true);
 118                 images = newImages;
 119
 120                 // The command that does some validation before downloading a file.
 121                 Command downloadCmd = new Command() {
 122
 123                         @Override
 124                         public void execute() {
 125                                 hide();
 126                                 GSS.get().getTopPanel().getFileMenu().preDownloadCheck();
 127                         }
 128                 };
 129
 130                 pasteItem = new MenuItem("<span>" + AbstractImagePrototype.create(newImages.paste()).getHTML() + "&nbsp;Paste</span>", true, new PasteCommand(this));
 131
 132                 MenuBar contextMenu = new MenuBar(true);
 133                 if (isEmpty) {
 134                         contextMenu.addItem(pasteItem);
 135                         if (GSS.get().getFolders().getCurrent() != null)
 136                                 if (GSS.get().getFolders().isFileItem(GSS.get().getFolders().getCurrent()))
 137                                         contextMenu.addItem("<span>" + AbstractImagePrototype.create(newImages.fileUpdate()).getHTML() + "&nbsp;Upload</span>", true, new UploadFileCommand(this));
 138                                 else if (GSS.get().getFolders().isMySharedItem(GSS.get().getFolders().getCurrent()) || GSS      .get()
 139                                                                                                                                                                                                                         .getFolders()
 140                                                                                                                                                                                                                         .isOthersSharedItem(GSS .get()
 141                                                                                                                                                                                                                                                                         .getFolders()
 142                                                                                                                                                                                                                                                                         .getCurrent()))
 143                                         if(GSS.get().getFolders().getCurrent().getUserObject() instanceof FolderResource)
 144                                                 contextMenu.addItem("<span>" + AbstractImagePrototype.create(newImages.fileUpdate()).getHTML() + "&nbsp;Upload</span>", true, new UploadFileCommand(this));
 145                         contextMenu.addItem("<span>" + AbstractImagePrototype.create(images.refresh()).getHTML() + "&nbsp;Refresh</span>", true, new RefreshCommand(this, images));
 146                 } else if (isTrash) {
 147                         contextMenu.addItem("<span>" + AbstractImagePrototype.create(newImages.versions()).getHTML() + "&nbsp;Restore</span>", true, new RestoreTrashCommand(this));
 148                         contextMenu.addItem("<span>" + AbstractImagePrototype.create(newImages.delete()).getHTML() + "&nbsp;Delete</span>", true, new DeleteCommand(this, images));
 149                 } else {
 150                         final Command unselectAllCommand = new Command() {
 151
 152                                 @Override
 153                                 public void execute() {
 154                                         hide();
 155                                         if(GSS.get().isFileListShowing())
 156                                                 GSS.get().getFileList().clearSelectedRows();
 157                                         else if(GSS.get().isSearchResultsShowing())
 158                                                 GSS.get().getSearchResults().clearSelectedRows();
 159                                 }
 160                         };
 161                         cutItem = new MenuItem("<span>" + AbstractImagePrototype.create(newImages.cut()).getHTML() + "&nbsp;Cut</span>", true, new CutCommand(this));
 162                         copyItem = new MenuItem("<span>" + AbstractImagePrototype.create(newImages.copy()).getHTML() + "&nbsp;Copy</span>", true, new CopyCommand(this));
 163
 164                         updateItem = new MenuItem("<span>" + AbstractImagePrototype.create(newImages.fileUpdate()).getHTML() + "&nbsp;Upload</span>", true, new UploadFileCommand(this));
 165
 166                         trashItem = new MenuItem("<span>" + AbstractImagePrototype.create(newImages.emptyTrash()).getHTML() + "&nbsp;Move to Trash</span>", true, new ToTrashCommand(this));
 167                         deleteItem = new MenuItem("<span>" + AbstractImagePrototype.create(newImages.delete()).getHTML() + "&nbsp;Delete</span>", true, new DeleteCommand(this, images));
 168
 169                         sharingItem = new MenuItem("<span>" + AbstractImagePrototype.create(newImages.sharing()).getHTML() + "&nbsp;Sharing</span>", true, new PropertiesCommand(this, images, 1));
 170                         propItem = new MenuItem("<span>" + AbstractImagePrototype.create(newImages.viewText()).getHTML() + "&nbsp;Properties</span>", true, new PropertiesCommand(this, images, 0));
 171
 172                         TreeItem currentFolder = gss.getFolders().getCurrent();
 173                         if(currentFolder!=null && currentFolder.getUserObject() instanceof FolderResource)
 174                                 contextMenu.addItem(updateItem);
 175                         String[] link = {"", ""};
 176                         gss.getTopPanel().getFileMenu().createDownloadLink(link, false);
 177                         downloadItem = new MenuItem("<span>" + link[0] + AbstractImagePrototype.create(newImages.download()).getHTML() + " Download" + link[1] + "</span>", true, downloadCmd);
 178                         contextMenu.addItem(downloadItem);
 179                         gss.getTopPanel().getFileMenu().createDownloadLink(link, true);
 180                         saveAsItem = new MenuItem("<span>" + link[0] + AbstractImagePrototype.create(newImages.download()).getHTML() + " Save As" + link[1] + "</span>", true, downloadCmd);
 181                         contextMenu.addItem(saveAsItem);
 182                         contextMenu.addItem(cutItem);
 183                         contextMenu.addItem(copyItem);
 184                         if(currentFolder!=null && currentFolder.getUserObject() instanceof FolderResource)
 185                                 contextMenu.addItem(pasteItem);
 186                         contextMenu.addItem("<span>" + AbstractImagePrototype.create(images.unselectAll()).getHTML() + "&nbsp;Unselect</span>", true, unselectAllCommand);
 187                         contextMenu.addItem(trashItem);
 188                         contextMenu.addItem(deleteItem);
 189                         contextMenu.addItem("<span>" + AbstractImagePrototype.create(images.refresh()).getHTML() + "&nbsp;Refresh</span>", true, new RefreshCommand(this, images));
 190                         contextMenu.addItem(sharingItem);
 191                         contextMenu.addItem(propItem);
 192                 }
 193                 add(contextMenu);
 194                 if (gss.getClipboard().hasFileItem())
 195                         pasteItem.setVisible(true);
 196                 else
 197                         pasteItem.setVisible(false);
 198         }
 199
 200         void onMultipleSelection() {
 201                 updateItem.setVisible(false);
 202                 downloadItem.setVisible(false);
 203                 saveAsItem.setVisible(false);
 204                 sharingItem.setVisible(false);
 205         }
 206         @Override
 207         public void onClick(ClickEvent event) {
 208                 if (GSS.get().getCurrentSelection() != null)
 209                         if (GSS.get().getCurrentSelection() instanceof FileResource) {
 210                                 FileResource res = (FileResource) GSS.get().getCurrentSelection();
 211                                 FileContextMenu menu;
 212                                 if (res.isDeleted())
 213                                         menu = new FileContextMenu(images, true, false);
 214                                 else
 215                                         menu = new FileContextMenu(images, false, false);
 216                                 int left = event.getRelativeElement().getAbsoluteLeft();
 217                                 int top = event.getRelativeElement().getAbsoluteTop() + event.getRelativeElement().getOffsetHeight();
 218                                 menu.setPopupPosition(left, top);
 219                                 menu.show();
 220                         } else if (GSS.get().getCurrentSelection() instanceof List) {
 221                                 FileContextMenu menu;
 222                                 if (GSS.get().getFolders().isTrashItem(GSS.get().getFolders().getCurrent()))
 223                                         menu = new FileContextMenu(images, true, false);
 224                                 else {
 225                                         menu = new FileContextMenu(images, false, false);
 226                                         menu.onMultipleSelection();
 227                                 }
 228                                 int left = event.getRelativeElement().getAbsoluteLeft();
 229                                 int top = event.getRelativeElement().getAbsoluteTop() + event.getRelativeElement().getOffsetHeight();
 230                                 menu.setPopupPosition(left, top);
 231                                 menu.show();
 232                         }
 233         }
 234
 235
 236         public void onContextEvent(ContextMenuEvent event) {
 237                 if (GSS.get().getCurrentSelection() != null)
 238                         if (GSS.get().getCurrentSelection() instanceof FileResource) {
 239                                 FileResource res = (FileResource) GSS.get().getCurrentSelection();
 240                                 FileContextMenu menu;
 241                                 if (res.isDeleted())
 242                                         menu = new FileContextMenu(images, true, false);
 243                                 else
 244                                         menu = new FileContextMenu(images, false, false);
 245                                 int left = event.getNativeEvent().getClientX();
 246                                 int top = event.getNativeEvent().getClientY();
 247                                 menu.setPopupPosition(left, top);
 248                                 menu.show();
 249
 250                         } else if (GSS.get().getCurrentSelection() instanceof List) {
 251                                 FileContextMenu menu;
 252                                 if (GSS.get().getFolders().isTrashItem(GSS.get().getFolders().getCurrent()))
 253                                         menu = new FileContextMenu(images, true, false);
 254                                 else {
 255                                         menu = new FileContextMenu(images, false, false);
 256                                         menu.onMultipleSelection();
 257                                 }
 258                                 int left = event.getNativeEvent().getClientX();
 259                                 int top = event.getNativeEvent().getClientY();
 260                                 menu.setPopupPosition(left, top);
 261                                 menu.show();
 262                         }
 263         }
 264
 265         public FileContextMenu onEvent(Event event) {
 266                 FileContextMenu menu=null;
 267                 if (GSS.get().getCurrentSelection() != null)
 268                         if (GSS.get().getCurrentSelection() instanceof FileResource) {
 269                                 FileResource res = (FileResource) GSS.get().getCurrentSelection();
 270
 271                                 if (res.isDeleted())
 272                                         menu = new FileContextMenu(images, true, false);
 273                                 else
 274                                         menu = new FileContextMenu(images, false, false);
 275                                 int left = event.getClientX();
 276                                 int top = event.getClientY();
 277                                 menu.setPopupPosition(left, top);
 278                                 menu.show();
 279                         } else if (GSS.get().getCurrentSelection() instanceof List) {
 280
 281                                 if (GSS.get().getFolders().isTrashItem(GSS.get().getFolders().getCurrent()))
 282                                         menu = new FileContextMenu(images, true, false);
 283                                 else {
 284                                         menu = new FileContextMenu(images, false, false);
 285                                         menu.onMultipleSelection();
 286                                 }
 287                                 int left = event.getClientX();
 288                                 int top = event.getClientY();
 289                                 menu.setPopupPosition(left, top);
 290                                 menu.show();
 291                         }
 292                 return menu;
 293         }
 294
 295         public FileContextMenu onEmptyEvent(Event event) {
 296                 FileContextMenu menu=null;
 297                 if (GSS.get().getFolders().isTrashItem(GSS.get().getFolders().getCurrent()))
 298                         menu = new FileContextMenu(images, true, true);
 299                 else if(((DnDTreeItem)GSS.get().getFolders().getCurrent()).getFolderResource() != null)
 300                         menu = new FileContextMenu(images, false, true);
 301                 else return menu;
 302                 int left = event.getClientX();
 303                 int top = event.getClientY();
 304                 menu.setPopupPosition(left, top);
 305                 menu.show();
 306                 return menu;
 307         }
 308
 309
 310 }