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