code.grnet.gr Git - pithos-web-client/blob - src/gr/grnet/pithos/web/client/foldertree/FolderTreeView.java

   1 /*
   2  * Copyright (c) 2011 Greek Research and Technology Network
   3  */
   4
   5 package gr.grnet.pithos.web.client.foldertree;
   6
   7 import com.google.gwt.cell.client.AbstractCell;
   8 import com.google.gwt.core.client.GWT;
   9 import com.google.gwt.resources.client.ClientBundle;
  10 import com.google.gwt.resources.client.ImageResource;
  11 import com.google.gwt.resources.client.ImageResource.ImageOptions;
  12 import com.google.gwt.safehtml.client.SafeHtmlTemplates;
  13 import com.google.gwt.safehtml.shared.SafeHtml;
  14 import com.google.gwt.safehtml.shared.SafeHtmlBuilder;
  15 import com.google.gwt.user.cellview.client.CellTree;
  16 import com.google.gwt.user.cellview.client.HasKeyboardSelectionPolicy.KeyboardSelectionPolicy;
  17 import com.google.gwt.user.client.Event;
  18 import com.google.gwt.user.client.ui.AbstractImagePrototype;
  19 import com.google.gwt.user.client.ui.Composite;
  20 import com.google.gwt.user.client.ui.Tree;
  21 import gr.grnet.pithos.web.client.FolderContextMenu;
  22
  23 public class FolderTreeView extends Composite {
  24
  25     static interface BasicResources extends CellTree.Resources {
  26
  27         @ImageOptions(flipRtl = true)
  28         @Source("cellTreeClosedItem.gif")
  29         ImageResource cellTreeClosedItem();
  30
  31         @ImageOptions(flipRtl = true)
  32         @Source("cellTreeLoadingBasic.gif")
  33         ImageResource cellTreeLoading();
  34
  35         @ImageOptions(flipRtl = true)
  36         @Source("cellTreeOpenItem.gif")
  37         ImageResource cellTreeOpenItem();
  38
  39         @Source({"GssCellTreeBasic.css"})
  40         CellTree.Style cellTreeStyle();
  41     }
  42
  43     static interface Images extends ClientBundle,Tree.Resources, FolderContextMenu.Images {
  44
  45         @Source("gr/grnet/pithos/resources/folder_home.png")
  46         ImageResource home();
  47
  48         @Source("gr/grnet/pithos/resources/folder_yellow.png")
  49         ImageResource folderYellow();
  50     }
  51
  52     private static Images images = GWT.create(Images.class);
  53
  54     static interface Templates extends SafeHtmlTemplates {
  55         Templates INSTANCE = GWT.create(Templates.class);
  56
  57         @Template("<span>{0}</span>")
  58         public SafeHtml nameSpan(String name);
  59       }
  60
  61     static class FolderCell extends AbstractCell<Folder> {
  62
  63         @Override
  64         public void render(Context context, Folder folder, SafeHtmlBuilder safeHtmlBuilder) {
  65             String html = AbstractImagePrototype.create(images.folderYellow()).getHTML();
  66             safeHtmlBuilder.appendHtmlConstant(html);
  67             safeHtmlBuilder.append(Templates.INSTANCE.nameSpan(folder.getName()));
  68         }
  69     }
  70
  71
  72     private FolderTreeViewModel model;
  73
  74     public FolderTreeView(FolderTreeViewModel viewModel) {
  75         this.model = viewModel;
  76         /*
  77          * Create the tree using the model. We use <code>null</code> as the default
  78          * value of the root node. The default value will be passed to
  79          * CustomTreeModel#getNodeInfo();
  80          */
  81         CellTree.Resources res = GWT.create(BasicResources.class);
  82         CellTree tree = new CellTree(model, null, res);
  83
  84         tree.setKeyboardSelectionPolicy(KeyboardSelectionPolicy.ENABLED);
  85
  86         sinkEvents(Event.ONCONTEXTMENU);
  87         sinkEvents(Event.ONMOUSEUP);
  88         initWidget(tree);
  89     }
  90 }