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

   1 /*
   2  * Copyright 2011-2013 GRNET S.A. All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or
   5  * without modification, are permitted provided that the following
   6  * conditions are met:
   7  *
   8  *   1. Redistributions of source code must retain the above
   9  *      copyright notice, this list of conditions and the following
  10  *      disclaimer.
  11  *
  12  *   2. Redistributions in binary form must reproduce the above
  13  *      copyright notice, this list of conditions and the following
  14  *      disclaimer in the documentation and/or other materials
  15  *      provided with the distribution.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
  18  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  20  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
  21  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  22  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  23  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
  24  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  25  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
  27  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  28  * POSSIBILITY OF SUCH DAMAGE.
  29  *
  30  * The views and conclusions contained in the software and
  31  * documentation are those of the authors and should not be
  32  * interpreted as representing official policies, either expressed
  33  * or implied, of GRNET S.A.
  34  */
  35
  36 package gr.grnet.pithos.web.client.foldertree;
  37
  38 import gr.grnet.pithos.web.client.FolderContextMenu;
  39 import gr.grnet.pithos.web.client.Pithos;
  40 import gr.grnet.pithos.web.client.PithosDisclosurePanel;
  41 import gr.grnet.pithos.web.client.TreeView;
  42
  43 import com.google.gwt.core.client.GWT;
  44 import com.google.gwt.i18n.client.NumberFormat;
  45 import com.google.gwt.resources.client.ImageResource;
  46 import com.google.gwt.resources.client.ImageResource.ImageOptions;
  47 import com.google.gwt.resources.client.ImageResource.RepeatStyle;
  48 import com.google.gwt.safehtml.client.SafeHtmlTemplates;
  49 import com.google.gwt.safehtml.shared.SafeHtml;
  50 import com.google.gwt.user.cellview.client.CellTree;
  51 import com.google.gwt.user.cellview.client.HasKeyboardSelectionPolicy.KeyboardSelectionPolicy;
  52 import com.google.gwt.user.cellview.client.TreeNode;
  53 import com.google.gwt.user.client.Command;
  54 import com.google.gwt.user.client.ui.Composite;
  55 import com.google.gwt.user.client.ui.HTML;
  56 import com.google.gwt.user.client.ui.HasHorizontalAlignment;
  57 import com.google.gwt.user.client.ui.HorizontalPanel;
  58 import com.google.gwt.user.client.ui.Tree;
  59 import com.google.gwt.user.client.ui.VerticalPanel;
  60
  61 public class FolderTreeView extends Composite implements TreeView {
  62
  63         public boolean isFolderOpen(Folder folder) {
  64         TreeNode root = ((CellTree) getWidget()).getRootTreeNode();
  65         return isFolderOpen(root, folder);
  66         }
  67
  68         private boolean isFolderOpen(TreeNode node, Folder folder) {
  69         for (int i=0; i<node.getChildCount(); i++) {
  70             if (folder.equals(node.getChildValue(i))) {
  71                 return node.isChildOpen(i);
  72             }
  73                         if (node.isChildOpen(i)) {
  74                             TreeNode n = node.setChildOpen(i, true);
  75                             return isFolderOpen(n, folder);
  76                         }
  77         }
  78         return false;
  79         }
  80
  81     public void openFolder(Folder folder) {
  82         TreeNode root = tree.getRootTreeNode();
  83         openFolder(root, folder);
  84     }
  85
  86     private void openFolder(TreeNode node, Folder folder) {
  87         for (int i=0; i<node.getChildCount(); i++) {
  88             if (folder.equals(node.getChildValue(i))) {
  89                 node.setChildOpen(i, false, true);
  90                 node.setChildOpen(i, true, true);
  91                 break;
  92             }
  93                         if (node.isChildOpen(i)) {
  94                             TreeNode n = node.setChildOpen(i, true);
  95                             openFolder(n, folder);
  96                             break;
  97                         }
  98         }
  99     }
 100
 101     static interface BasicResources extends CellTree.Resources {
 102
 103         @Override
 104                 @ImageOptions(flipRtl = true)
 105         @Source("gr/grnet/pithos/web/client/cellTreeClosedItem.png")
 106         ImageResource cellTreeClosedItem();
 107
 108         @Override
 109                 @ImageOptions(flipRtl = true)
 110         @Source("gr/grnet/pithos/web/client/cellTreeLoadingBasic.gif")
 111         ImageResource cellTreeLoading();
 112
 113         @Override
 114                 @ImageOptions(flipRtl = true)
 115         @Source("gr/grnet/pithos/web/client/cellTreeOpenItem.png")
 116         ImageResource cellTreeOpenItem();
 117
 118         @Override
 119                 @Source({"gr/grnet/pithos/web/client/PithosCellTreeBasic.css"})
 120         CellTree.Style cellTreeStyle();
 121
 122         @Source("gr/grnet/pithos/web/client/cellTreeLoadingBasic.gif")
 123         @ImageOptions(repeatStyle=RepeatStyle.None)
 124         ImageResource cellTreeLoadingBasic();
 125     }
 126
 127     public static interface Images extends Tree.Resources, FolderContextMenu.Images {
 128
 129         @Source("gr/grnet/pithos/resources/home22.png")
 130         ImageResource home();
 131
 132         @Source("gr/grnet/pithos/resources/2folder22.png")
 133         public ImageResource folderYellow();
 134
 135         @Source("gr/grnet/pithos/resources/mimetypes/document.png")
 136         ImageResource document();
 137
 138         @Source("gr/grnet/pithos/resources/myshared22.png")
 139         ImageResource myShared();
 140
 141         @Source("gr/grnet/pithos/resources/folder_user.png")
 142         ImageResource sharedFolder();
 143
 144         @Source("gr/grnet/pithos/resources/trash.png")
 145         ImageResource trash();
 146     }
 147
 148     static Images images = GWT.create(Images.class);
 149
 150     static interface Templates extends SafeHtmlTemplates {
 151         public Templates INSTANCE = GWT.create(Templates.class);
 152
 153         @Template("<span style='vertical-align: middle;'>{0}</span>")
 154         public SafeHtml nameSpan(String name);
 155
 156         @Template("<span class='pithos-folderLabel'>{0}</span>")
 157         public SafeHtml imageSpan(String name);
 158     }
 159
 160     interface Resources extends gr.grnet.pithos.web.client.PithosDisclosurePanel.Resources {
 161                 @Override
 162                 @Source("gr/grnet/pithos/resources/home22.png")
 163         ImageResource icon();
 164     }
 165
 166     private FolderTreeViewModel model;
 167
 168     CellTree tree;
 169
 170     private HTML usedBytes;
 171
 172     private HTML totalBytes;
 173
 174     private HTML usedPercent;
 175
 176     public FolderTreeView(FolderTreeViewModel viewModel) {
 177         this.model = viewModel;
 178
 179         PithosDisclosurePanel panel = new PithosDisclosurePanel((Resources) GWT.create(Resources.class), "My Files", false, true);
 180
 181         VerticalPanel content = new VerticalPanel();
 182
 183         /*
 184          * Create the tree using the model. We use <code>null</code> as the default
 185          * value of the root node. The default value will be passed to
 186          * CustomTreeModel#getNodeInfo();
 187          */
 188         CellTree.Resources res = GWT.create(BasicResources.class);
 189         tree = new CellTree(model, null, res);
 190         tree.setKeyboardSelectionPolicy(KeyboardSelectionPolicy.ENABLED);
 191         tree.setDefaultNodeSize(5000);
 192         content.add(tree);
 193
 194         HorizontalPanel statistics = new HorizontalPanel();
 195             statistics.addStyleName(Pithos.resources.pithosCss().statistics());
 196             statistics.add(new HTML("Used:&nbsp;"));
 197             usedBytes = new HTML();
 198             statistics.add(usedBytes);
 199             statistics.add(new HTML("&nbsp;of&nbsp;"));
 200             totalBytes = new HTML();
 201             statistics.add(totalBytes);
 202             statistics.add(new HTML("&nbsp;("));
 203             usedPercent = new HTML();
 204             statistics.add(usedPercent);
 205             statistics.add(new HTML(")"));
 206             content.add(statistics);
 207             content.setCellHorizontalAlignment(statistics, HasHorizontalAlignment.ALIGN_CENTER);
 208
 209         panel.setContent(content);
 210         initWidget(panel);
 211     }
 212
 213
 214     @Override
 215         public Folder getSelection() {
 216        return model.getSelection();
 217     }
 218
 219     public void updateFolder(Folder folder, boolean showfiles, Command callback, final boolean openParent) {
 220         model.updateFolder(folder, showfiles, callback, openParent);
 221     }
 222
 223         public void showStatistics(AccountResource account) {
 224         usedBytes.setHTML(String.valueOf(account.getFileSizeAsString()));
 225         totalBytes.setHTML(String.valueOf(account.getQuotaAsString()));
 226         NumberFormat nf = NumberFormat.getPercentFormat();
 227         usedPercent.setHTML(nf.format(account.getUsedPercentage()));
 228         }
 229 }