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