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.PropertiesCommand;
  25 import gr.ebs.gss.client.commands.RestoreTrashCommand;
  26 import gr.ebs.gss.client.commands.ToTrashCommand;
  27 import gr.ebs.gss.client.commands.UploadFileCommand;
  28 import gr.ebs.gss.client.dnd.DnDTreeItem;
  29 import gr.ebs.gss.client.rest.resource.FileResource;
  30 import gr.ebs.gss.client.rest.resource.FolderResource;
  31
  32 import java.util.List;
  33
  34 import com.google.gwt.user.client.Command;
  35 import com.google.gwt.user.client.Event;
  36 import com.google.gwt.user.client.Window;
  37 import com.google.gwt.user.client.ui.AbstractImagePrototype;
  38 import com.google.gwt.user.client.ui.ClickListener;
  39 import com.google.gwt.user.client.ui.MenuBar;
  40 import com.google.gwt.user.client.ui.MenuItem;
  41 import com.google.gwt.user.client.ui.PopupPanel;
  42 import com.google.gwt.user.client.ui.Widget;
  43
  44 /**
  45  * The 'File Context' menu implementation.
  46  */
  47 public class FileContextMenu extends PopupPanel implements ClickListener {
  48
  49         /**
  50          * The widget's images.
  51          */
  52         private final Images images;
  53
  54         private MenuItem cutItem;
  55
  56         private MenuItem copyItem;
  57
  58         private MenuItem updateItem;
  59
  60         private MenuItem propItem;
  61
  62         private MenuItem trashItem;
  63
  64         private MenuItem deleteItem;
  65
  66         private MenuItem downloadItem;
  67
  68         /**
  69          * The image bundle for this widget's images that reuses images defined in
  70          * other menus.
  71          */
  72         public interface Images extends FileMenu.Images, EditMenu.Images {
  73
  74                 /**
  75                  * Will bundle the file 'document_menu.png' residing in the package
  76                  * 'gr.ebs.gss.resources.mimetypes'.
  77                  *
  78                  * @return the image prototype
  79                  */
  80                 @Resource("gr/ebs/gss/resources/mimetypes/document_menu.png")
  81                 AbstractImagePrototype fileContextMenu();
  82
  83                 /**
  84                  * Will bundle the file 'doc_versions.png' residing in the package
  85                  * 'gr.ebs.gss.resources'.
  86                  *
  87                  * @return the image prototype
  88                  */
  89                 @Resource("gr/ebs/gss/resources/doc_versions.png")
  90                 AbstractImagePrototype versions();
  91         }
  92
  93         public static native String getDate()/*-{
  94                         return (new Date()).toUTCString();
  95                 }-*/;
  96
  97         /**
  98          * The widget's constructor.
  99          *
 100          * @param newImages the image bundle passed on by the parent object
 101          */
 102         public FileContextMenu(final Images newImages, boolean isTrash, boolean isEmpty) {
 103                 // The popup's constructor's argument is a boolean specifying that it
 104                 // auto-close itself when the user clicks outside of it.
 105                 super(true);
 106                 setAnimationEnabled(true);
 107                 images = newImages;
 108
 109                 // A dummy command that we will execute from unimplemented leaves.
 110                 final Command cmd = new Command() {
 111
 112                         public void execute() {
 113                                 hide();
 114                                 Window.alert("You selected a menu item!");
 115                         }
 116                 };
 117
 118                 // The command that does some validation before downloading a file.
 119                 final Command downloadCmd = new Command() {
 120
 121                         public void execute() {
 122                                 hide();
 123                                 GSS.get().getTopPanel().getFileMenu().preDownloadCheck();
 124                         }
 125                 };
 126
 127                 final MenuBar contextMenu = new MenuBar(true);
 128                 if (isEmpty) {
 129                         if (GSS.get().getFolders().getCurrent() != null)
 130                                 if (GSS.get().getFolders().isFileItem(GSS.get().getFolders().getCurrent()))
 131                                         contextMenu.addItem("<span>" + newImages.fileNew().getHTML() + "&nbsp;Upload</span>", true, new UploadFileCommand(this, images));
 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.fileNew().getHTML() + "&nbsp;Upload</span>", true, new UploadFileCommand(this, images));
 139                 } else if (isTrash) {
 140                         contextMenu.addItem("<span>" + newImages.versions().getHTML() + "&nbsp;Restore</span>", true, new RestoreTrashCommand(this));
 141                         contextMenu.addItem("<span>" + newImages.delete().getHTML() + "&nbsp;Delete</span>", true, new DeleteCommand(this, images));
 142                 } else {
 143
 144                         cutItem = new MenuItem("<span>" + newImages.cut().getHTML() + "&nbsp;Cut</span>", true, new CutCommand(this));
 145                         copyItem = new MenuItem("<span>" + newImages.copy().getHTML() + "&nbsp;Copy</span>", true, new CopyCommand(this));
 146                         updateItem = new MenuItem("<span>" + newImages.fileUpdate().getHTML() + "&nbsp;Upload</span>", true, new UploadFileCommand(this, images));
 147
 148                         propItem = new MenuItem("<span>" + newImages.viewText().getHTML() + "&nbsp;Properties</span>", true, new PropertiesCommand(this, images));
 149                         trashItem = new MenuItem("<span>" + newImages.emptyTrash().getHTML() + "&nbsp;Move to Trash</span>", true, new ToTrashCommand(this));
 150                         deleteItem = new MenuItem("<span>" + newImages.delete().getHTML() + "&nbsp;Delete</span>", true, new DeleteCommand(this, images));
 151
 152                         contextMenu.addItem(cutItem);
 153                         contextMenu.addItem(copyItem);
 154                         contextMenu.addItem(updateItem);
 155
 156                         contextMenu.addItem(propItem);
 157                         contextMenu.addItem(trashItem);
 158                         contextMenu.addItem(deleteItem);
 159                         String[] link = {"", ""};
 160                         GSS.get().getTopPanel().getFileMenu().createDownloadLink(link);
 161                         downloadItem = new MenuItem("<span>" + link[0] + newImages.download().getHTML() + " Download" + link[1] + "</span>", true, downloadCmd);
 162                         contextMenu.addItem(downloadItem);
 163
 164                 }
 165
 166                 add(contextMenu);
 167
 168         }
 169
 170         void onMultipleSelection() {
 171                 updateItem.setVisible(false);
 172                 propItem.setVisible(false);
 173                 downloadItem.setVisible(false);
 174         }
 175
 176         /*
 177          * (non-Javadoc)
 178          *
 179          * @see com.google.gwt.user.client.ui.ClickListener#onClick(com.google.gwt.user.client.ui.Widget)
 180          */
 181         public void onClick(final Widget sender) {
 182
 183                 if (GSS.get().getCurrentSelection() != null)
 184                         if (GSS.get().getCurrentSelection() instanceof FileResource) {
 185                                 FileResource res = (FileResource) GSS.get().getCurrentSelection();
 186                                 FileContextMenu menu;
 187                                 if (res.isDeleted())
 188                                         menu = new FileContextMenu(images, true, false);
 189                                 else
 190                                         menu = new FileContextMenu(images, false, false);
 191                                 int left = sender.getAbsoluteLeft();
 192                                 int top = sender.getAbsoluteTop() + sender.getOffsetHeight();
 193                                 menu.setPopupPosition(left, top);
 194                                 menu.show();
 195                         } else if (GSS.get().getCurrentSelection() instanceof List) {
 196                                 List<FileResource> dto = (List<FileResource>) GSS.get().getCurrentSelection();
 197                                 FileContextMenu menu;
 198                                 if (GSS.get().getFolders().isTrashItem(GSS.get().getFolders().getCurrent()))
 199                                         menu = new FileContextMenu(images, true, false);
 200                                 else {
 201                                         menu = new FileContextMenu(images, false, false);
 202                                         menu.onMultipleSelection();
 203                                 }
 204                                 int left = sender.getAbsoluteLeft();
 205                                 int top = sender.getAbsoluteTop() + sender.getOffsetHeight();
 206                                 menu.setPopupPosition(left, top);
 207                                 menu.show();
 208                         }
 209         }
 210
 211         public void onEmptyEvent(Event event) {
 212                 FileContextMenu menu;
 213                 if (GSS.get().getFolders().isTrashItem(GSS.get().getFolders().getCurrent()))
 214                         menu = new FileContextMenu(images, true, true);
 215                 else if(((DnDTreeItem)GSS.get().getFolders().getCurrent()).getFolderResource() != null)
 216                         menu = new FileContextMenu(images, false, true);
 217                 else return;
 218                 int left = event.getClientX();
 219                 int top = event.getClientY();
 220                 menu.setPopupPosition(left, top);
 221                 menu.show();
 222         }
 223 }