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
  95         public static native String getDate()/*-{
  96                 return (new Date()).toUTCString();
  97         }-*/;
  98
  99         /**
 100          * The widget's constructor.
 101          *
 102          * @param newImages the image bundle passed on by the parent object
 103          */
 104         public FileContextMenu(Images newImages, boolean isTrash, boolean isEmpty) {
 105                 // The popup's constructor's argument is a boolean specifying that it
 106                 // auto-close itself when the user clicks outside of it.
 107                 super(true);
 108                 GSS gss = GSS.get();
 109                 setAnimationEnabled(true);
 110                 images = newImages;
 111
 112                 // The command that does some validation before downloading a file.
 113                 Command downloadCmd = new Command() {
 114
 115                         public void execute() {
 116                                 hide();
 117                                 GSS.get().getTopPanel().getFileMenu().preDownloadCheck();
 118                         }
 119                 };
 120
 121                 pasteItem = new MenuItem("<span>" + newImages.paste().getHTML() + "&nbsp;Paste</span>", true, new PasteCommand(this));
 122
 123                 MenuBar contextMenu = new MenuBar(true);
 124                 if (isEmpty) {
 125                         contextMenu.addItem(pasteItem);
 126                         if (GSS.get().getFolders().getCurrent() != null)
 127                                 if (GSS.get().getFolders().isFileItem(GSS.get().getFolders().getCurrent()))
 128                                         contextMenu.addItem("<span>" + newImages.fileUpdate().getHTML() + "&nbsp;Upload</span>", true, new UploadFileCommand(this));
 129                                 else if (GSS.get().getFolders().isMySharedItem(GSS.get().getFolders().getCurrent()) || GSS      .get()
 130                                                                                                                                                                                                                         .getFolders()
 131                                                                                                                                                                                                                         .isOthersSharedItem(GSS .get()
 132                                                                                                                                                                                                                                                                         .getFolders()
 133                                                                                                                                                                                                                                                                         .getCurrent()))
 134                                         if(GSS.get().getFolders().getCurrent().getUserObject() instanceof FolderResource)
 135                                                 contextMenu.addItem("<span>" + newImages.fileUpdate().getHTML() + "&nbsp;Upload</span>", true, new UploadFileCommand(this));
 136                         contextMenu.addItem("<span>" + images.refresh().getHTML() + "&nbsp;Refresh</span>", true, new RefreshCommand(this, images));
 137                 } else if (isTrash) {
 138                         contextMenu.addItem("<span>" + newImages.versions().getHTML() + "&nbsp;Restore</span>", true, new RestoreTrashCommand(this));
 139                         contextMenu.addItem("<span>" + newImages.delete().getHTML() + "&nbsp;Delete</span>", true, new DeleteCommand(this, images));
 140                 } else {
 141                         final Command unselectAllCommand = new Command() {
 142
 143                                 public void execute() {
 144                                         hide();
 145                                         if(GSS.get().isFileListShowing())
 146                                                 GSS.get().getFileList().clearSelectedRows();
 147                                         else if(GSS.get().isSearchResultsShowing())
 148                                                 GSS.get().getSearchResults().clearSelectedRows();
 149                                 }
 150                         };
 151                         cutItem = new MenuItem("<span>" + newImages.cut().getHTML() + "&nbsp;Cut</span>", true, new CutCommand(this));
 152                         copyItem = new MenuItem("<span>" + newImages.copy().getHTML() + "&nbsp;Copy</span>", true, new CopyCommand(this));
 153
 154                         updateItem = new MenuItem("<span>" + newImages.fileUpdate().getHTML() + "&nbsp;Upload</span>", true, new UploadFileCommand(this));
 155
 156                         trashItem = new MenuItem("<span>" + newImages.emptyTrash().getHTML() + "&nbsp;Move to Trash</span>", true, new ToTrashCommand(this));
 157                         deleteItem = new MenuItem("<span>" + newImages.delete().getHTML() + "&nbsp;Delete</span>", true, new DeleteCommand(this, images));
 158
 159                         sharingItem = new MenuItem("<span>" + newImages.sharing().getHTML() + "&nbsp;Sharing</span>", true, new PropertiesCommand(this, images, 1));
 160                         propItem = new MenuItem("<span>" + newImages.viewText().getHTML() + "&nbsp;Properties</span>", true, new PropertiesCommand(this, images, 0));
 161
 162                         TreeItem currentFolder = gss.getFolders().getCurrent();
 163                         if(currentFolder!=null && currentFolder.getUserObject() instanceof FolderResource)
 164                                 contextMenu.addItem(updateItem);
 165                         String[] link = {"", ""};
 166                         gss.getTopPanel().getFileMenu().createDownloadLink(link, false);
 167                         downloadItem = new MenuItem("<span>" + link[0] + newImages.download().getHTML() + " Download" + link[1] + "</span>", true, downloadCmd);
 168                         contextMenu.addItem(downloadItem);
 169                         gss.getTopPanel().getFileMenu().createDownloadLink(link, true);
 170                         saveAsItem = new MenuItem("<span>" + link[0] + newImages.download().getHTML() + " Save As" + link[1] + "</span>", true, downloadCmd);
 171                         contextMenu.addItem(saveAsItem);
 172                         contextMenu.addItem(cutItem);
 173                         contextMenu.addItem(copyItem);
 174                         if(currentFolder!=null && currentFolder.getUserObject() instanceof FolderResource)
 175                                 contextMenu.addItem(pasteItem);
 176                         contextMenu.addItem("<span>" + images.unselectAll().getHTML() + "&nbsp;Unselect</span>", true, unselectAllCommand);
 177                         contextMenu.addItem(trashItem);
 178                         contextMenu.addItem(deleteItem);
 179                         contextMenu.addItem("<span>" + images.refresh().getHTML() + "&nbsp;Refresh</span>", true, new RefreshCommand(this, images));
 180                         contextMenu.addItem(sharingItem);
 181                         contextMenu.addItem(propItem);
 182                 }
 183                 add(contextMenu);
 184                 if (gss.getClipboard().hasFileItem())
 185                         pasteItem.setVisible(true);
 186                 else
 187                         pasteItem.setVisible(false);
 188         }
 189
 190         void onMultipleSelection() {
 191                 updateItem.setVisible(false);
 192                 propItem.setVisible(false);
 193                 downloadItem.setVisible(false);
 194                 sharingItem.setVisible(false);
 195         }
 196
 197         public void onClick(Widget sender) {
 198                 if (GSS.get().getCurrentSelection() != null)
 199                         if (GSS.get().getCurrentSelection() instanceof FileResource) {
 200                                 FileResource res = (FileResource) GSS.get().getCurrentSelection();
 201                                 FileContextMenu menu;
 202                                 if (res.isDeleted())
 203                                         menu = new FileContextMenu(images, true, false);
 204                                 else
 205                                         menu = new FileContextMenu(images, false, false);
 206                                 int left = sender.getAbsoluteLeft();
 207                                 int top = sender.getAbsoluteTop() + sender.getOffsetHeight();
 208                                 menu.setPopupPosition(left, top);
 209                                 menu.show();
 210                         } else if (GSS.get().getCurrentSelection() instanceof List) {
 211                                 FileContextMenu menu;
 212                                 if (GSS.get().getFolders().isTrashItem(GSS.get().getFolders().getCurrent()))
 213                                         menu = new FileContextMenu(images, true, false);
 214                                 else {
 215                                         menu = new FileContextMenu(images, false, false);
 216                                         menu.onMultipleSelection();
 217                                 }
 218                                 int left = sender.getAbsoluteLeft();
 219                                 int top = sender.getAbsoluteTop() + sender.getOffsetHeight();
 220                                 menu.setPopupPosition(left, top);
 221                                 menu.show();
 222                         }
 223         }
 224
 225         public void onEvent(Event event) {
 226                 if (GSS.get().getCurrentSelection() != null)
 227                         if (GSS.get().getCurrentSelection() instanceof FileResource) {
 228                                 FileResource res = (FileResource) GSS.get().getCurrentSelection();
 229                                 FileContextMenu menu;
 230                                 if (res.isDeleted())
 231                                         menu = new FileContextMenu(images, true, false);
 232                                 else
 233                                         menu = new FileContextMenu(images, false, false);
 234                                 int left = event.getClientX();
 235                                 int top = event.getClientY();
 236                                 menu.setPopupPosition(left, top);
 237                                 menu.show();
 238                         } else if (GSS.get().getCurrentSelection() instanceof List) {
 239                                 FileContextMenu menu;
 240                                 if (GSS.get().getFolders().isTrashItem(GSS.get().getFolders().getCurrent()))
 241                                         menu = new FileContextMenu(images, true, false);
 242                                 else {
 243                                         menu = new FileContextMenu(images, false, false);
 244                                         menu.onMultipleSelection();
 245                                 }
 246                                 int left = event.getClientX();
 247                                 int top = event.getClientY();
 248                                 menu.setPopupPosition(left, top);
 249                                 menu.show();
 250                         }
 251         }
 252
 253         public void onEmptyEvent(Event event) {
 254                 FileContextMenu menu;
 255                 if (GSS.get().getFolders().isTrashItem(GSS.get().getFolders().getCurrent()))
 256                         menu = new FileContextMenu(images, true, true);
 257                 else if(((DnDTreeItem)GSS.get().getFolders().getCurrent()).getFolderResource() != null)
 258                         menu = new FileContextMenu(images, false, true);
 259                 else return;
 260                 int left = event.getClientX();
 261                 int top = event.getClientY();
 262                 menu.setPopupPosition(left, top);
 263                 menu.show();
 264         }
 265 }