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