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