code.grnet.gr Git - pithos-web-client/blob - src/gr/grnet/pithos/web/client/VersionsList.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 package gr.grnet.pithos.web.client;
  36
  37 import com.google.gwt.core.client.Scheduler;
  38 import com.google.gwt.event.dom.client.ClickEvent;
  39 import com.google.gwt.event.dom.client.ClickHandler;
  40 import com.google.gwt.http.client.Response;
  41 import com.google.gwt.http.client.URL;
  42 import com.google.gwt.i18n.client.DateTimeFormat;
  43 import com.google.gwt.user.client.Window;
  44 import com.google.gwt.user.client.ui.*;
  45 import gr.grnet.pithos.web.client.FileVersionsDialog.Images;
  46 import gr.grnet.pithos.web.client.foldertree.File;
  47 import gr.grnet.pithos.web.client.foldertree.Version;
  48 import gr.grnet.pithos.web.client.rest.PostRequest;
  49 import gr.grnet.pithos.web.client.rest.RestException;
  50
  51 import java.util.List;
  52
  53 public class VersionsList extends Composite {
  54
  55     Pithos app;
  56
  57     File file;
  58
  59     private List<Version> versions = null;
  60
  61     private Images images;
  62
  63     private CustomScrollPanel permPanel = new CustomScrollPanel();
  64
  65     private FlexTable permTable = new FlexTable();
  66
  67     FileVersionsDialog container;
  68
  69         public VersionsList(Pithos _app, FileVersionsDialog aContainer, final Images theImages, File _file, List<Version> theVersions) {
  70         app = _app;
  71                 images = theImages;
  72                 container = aContainer;
  73                 file = _file;
  74                 versions = theVersions;
  75                 permTable.setText(0, 0, "Version");
  76                 permTable.setText(0, 1, "Date");
  77                 permTable.setText(0, 2, "");
  78                 permTable.setText(0, 3, "");
  79                 permTable.getFlexCellFormatter().setStyleName(0, 0, "props-toplabels");
  80                 permTable.getFlexCellFormatter().setStyleName(0, 1, "props-toplabels");
  81                 permTable.getFlexCellFormatter().setColSpan(0, 1, 2);
  82                 permTable.getFlexCellFormatter().setHorizontalAlignment(0, 0, HasHorizontalAlignment.ALIGN_CENTER);
  83                 permTable.getFlexCellFormatter().setHorizontalAlignment(0, 1, HasHorizontalAlignment.ALIGN_CENTER);
  84                 permPanel.add(permTable);
  85                 permPanel.addStyleName("pithos-versionList");
  86                 permPanel.setSize("260px", "150px");
  87                 permTable.addStyleName("pithos-permList");
  88                 initWidget(permPanel);
  89                 showVersionsTable();
  90         }
  91
  92         public void showVersionsTable(){
  93                 DateTimeFormat formatter = DateTimeFormat.getFormat("d/M/yyyy h:mm a");
  94                 int i = 1;
  95                 for (final Version v : versions) {
  96                         HTML restoreVersion = new HTML("<a href='#' class='hidden-link info'><span>" + AbstractImagePrototype.create(images.restore()).getHTML() + "</span><div>Restore this Version</div></a>");
  97                         restoreVersion.addClickHandler(new ClickHandler() {
  98                                 @Override
  99                                 public void onClick(ClickEvent event) {
 100                                         restoreVersion(v.getVersion());
 101                                 }
 102                         });
 103
 104                         permTable.setHTML(i, 0, "<span>" + v.getVersion() + "</span>");
 105                         if (v.getDate() != null)
 106                                 permTable.setHTML(i, 1, "<span>" + formatter.format(v.getDate()) + "</span>");
 107                         else
 108                                 permTable.setHTML(i, 1, "<span></span>");
 109                         HTML downloadHtml = new HTML("<a class='hidden-link info' href='#'><span>" + AbstractImagePrototype.create(images.download()).getHTML()+"</span><div>View this Version</div></a>");
 110                         downloadHtml.addClickHandler(new ClickHandler() {
 111                                 @Override
 112                                 public void onClick(ClickEvent event) {
 113                     final String fileUrl = Pithos.getVersionedFileViewURL(file, v.getVersion());
 114                                         Window.open(fileUrl, "_BLANK", "");
 115                                 }
 116                         });
 117                         permTable.setWidget(i, 2, downloadHtml);
 118                         permTable.setWidget(i, 3, restoreVersion);
 119                         permTable.getFlexCellFormatter().setStyleName(i, 0, "props-labels");
 120                         permTable.getFlexCellFormatter().setHorizontalAlignment(i, 0, HasHorizontalAlignment.ALIGN_CENTER);
 121                         permTable.getFlexCellFormatter().setHorizontalAlignment(i, 1, HasHorizontalAlignment.ALIGN_CENTER);
 122                         permTable.getFlexCellFormatter().setColSpan(i, 1, 2);
 123                         i++;
 124                 }
 125         }
 126
 127         void restoreVersion(int version) {
 128                 String path = file.getUri() + "?update=";
 129                 PostRequest restoreVersion = new PostRequest(Pithos.getStorageAPIURL(), file.getOwnerID(), path) {
 130
 131                         @Override
 132                         public void onSuccess(Resource result) {
 133                                 container.hide();
 134                         }
 135
 136                         @Override
 137                         public void onError(Throwable t) {
 138                                 app.setError(t);
 139                 if (t instanceof RestException) {
 140                         if (((RestException) t).getHttpStatusCode() == Response.SC_NO_CONTENT)
 141                                 onSuccess(null);
 142                         else
 143                                 app.displayError("Unable to restore version: " + ((RestException) t).getHttpStatusText());
 144                 }
 145                 else
 146                     app.displayError("System error unable to restore versions: "+t.getMessage());
 147                         }
 148
 149                         @Override
 150                         protected void onUnauthorized(Response response) {
 151                                 app.sessionExpired();
 152                         }
 153                 };
 154                 restoreVersion.setHeader("X-Auth-Token", app.getUserToken());
 155                 restoreVersion.setHeader("X-Source-Object", URL.encodePathSegment(file.getUri()));
 156                 restoreVersion.setHeader("X-Source-Version", String.valueOf(version));
 157                 restoreVersion.setHeader("Content-Range", "bytes 0-/*");
 158                 Scheduler.get().scheduleDeferred(restoreVersion);
 159         }
 160 }