code.grnet.gr Git - pithos-ms-client/blob - trunk/Pithos.Client.WPF/FileProperties/FilePropertiesViewModel.cs

   1 #region
   2 /* -----------------------------------------------------------------------
   3  * <copyright file="FilePropertiesViewModel.cs" company="GRNet">
   4  *
   5  * Copyright 2011-2012 GRNET S.A. All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or
   8  * without modification, are permitted provided that the following
   9  * conditions are met:
  10  *
  11  *   1. Redistributions of source code must retain the above
  12  *      copyright notice, this list of conditions and the following
  13  *      disclaimer.
  14  *
  15  *   2. Redistributions in binary form must reproduce the above
  16  *      copyright notice, this list of conditions and the following
  17  *      disclaimer in the documentation and/or other materials
  18  *      provided with the distribution.
  19  *
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
  22  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  23  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  24  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
  25  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  26  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  27  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
  28  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  29  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
  31  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  32  * POSSIBILITY OF SUCH DAMAGE.
  33  *
  34  * The views and conclusions contained in the software and
  35  * documentation are those of the authors and should not be
  36  * interpreted as representing official policies, either expressed
  37  * or implied, of GRNET S.A.
  38  * </copyright>
  39  * -----------------------------------------------------------------------
  40  */
  41 #endregion
  42 using System.Collections;
  43 using System.Collections.Concurrent;
  44 using System.Collections.ObjectModel;
  45 using System.Collections.Specialized;
  46 using System.ComponentModel.Composition;
  47 using System.Diagnostics;
  48 using System.Diagnostics.Contracts;
  49 using System.Drawing;
  50 using System.IO;
  51 using System.Net;
  52 using System.Threading.Tasks;
  53 using System.Windows;
  54 using System.Windows.Interop;
  55 using System.Windows.Media.Imaging;
  56 using Caliburn.Micro;
  57 using Pithos.Client.WPF.FileProperties;
  58 using Pithos.Client.WPF.Properties;
  59 using Pithos.Core;
  60 using Pithos.Interfaces;
  61 using Pithos.Network;
  62
  63 namespace Pithos.Client.WPF
  64 {
  65     using System;
  66     using System.Collections.Generic;
  67     using System.Linq;
  68     using System.Text;
  69
  70     /// <summary>
  71     /// TODO: Update summary.
  72     /// </summary>
  73     [Export(typeof(FilePropertiesViewModel))]
  74     public class FilePropertiesViewModel : Screen
  75     {
  76         private string _title;
  77         public string Title
  78         {
  79             get { return _title; }
  80             set
  81             {
  82                 _title = value;
  83                 NotifyOfPropertyChange(()=>Title);
  84             }
  85         }
  86
  87
  88         private bool _isPublic;
  89         public bool IsPublic
  90         {
  91             get { return _isPublic; }
  92             set
  93             {
  94                 _isPublic = value;
  95                 NotifyOfPropertyChange(()=>IsPublic);
  96             }
  97         }
  98
  99         private string _contentDisposition;
 100         public string ContentDisposition
 101         {
 102             get { return _contentDisposition; }
 103             set
 104             {
 105                 _contentDisposition = value;
 106                 NotifyOfPropertyChange(() => ContentDisposition);
 107             }
 108         }
 109
 110         private string _contentEncoding;
 111         public string ContentEncoding
 112         {
 113             get { return _contentEncoding; }
 114             set
 115             {
 116                 _contentEncoding = value;
 117                 NotifyOfPropertyChange(() => ContentEncoding);
 118             }
 119         }
 120
 121
 122         private string _manifest;
 123         public string Manifest
 124         {
 125             get { return _manifest; }
 126             set
 127             {
 128                 _manifest = value;
 129                 NotifyOfPropertyChange(() => Manifest);
 130             }
 131         }
 132
 133         private string _kind;
 134         public string Kind
 135         {
 136             get { return _kind; }
 137             set
 138             {
 139                 _kind = value;
 140                 NotifyOfPropertyChange(() => Kind);
 141             }
 142         }
 143
 144         private string _size;
 145         public string Size
 146         {
 147             get { return _size; }
 148             set
 149             {
 150                 _size = value;
 151                 NotifyOfPropertyChange(() => Size);
 152             }
 153         }
 154
 155         private string _shortSize;
 156         public string ShortSize
 157         {
 158             get { return _shortSize; }
 159             set
 160             {
 161                 _shortSize = value;
 162                 NotifyOfPropertyChange(() => ShortSize);
 163             }
 164         }
 165
 166         private string _where;
 167         public string Where
 168         {
 169             get { return _where; }
 170             set
 171             {
 172                 _where = value;
 173                 NotifyOfPropertyChange(() => Where);
 174             }
 175         }
 176
 177         private DateTime _modified;
 178         public DateTime Modified
 179         {
 180             get { return _modified; }
 181             set
 182             {
 183                 _modified = value;
 184                 NotifyOfPropertyChange(() => Modified);
 185             }
 186         }
 187
 188         private string _modifiedBy;
 189         public string ModifiedBy
 190         {
 191             get { return _modifiedBy; }
 192             set
 193             {
 194                 _modifiedBy = value;
 195                 NotifyOfPropertyChange(() => ModifiedBy);
 196             }
 197         }
 198
 199         private long _version;
 200         public long Version
 201         {
 202             get { return _version; }
 203             set
 204             {
 205                 _version = value;
 206                 NotifyOfPropertyChange(() => Version);
 207             }
 208         }
 209
 210         private string _localFileName;
 211         protected string LocalFileName
 212         {
 213             get { return _localFileName; }
 214             set
 215             {
 216                 _localFileName = value;
 217                 NotifyOfPropertyChange(() => LocalFileName);
 218             }
 219         }
 220
 221         private BitmapSource _fileIcon;
 222         public BitmapSource FileIcon
 223         {
 224             get { return _fileIcon; }
 225             set
 226             {
 227                 _fileIcon = value;
 228                 NotifyOfPropertyChange(() => FileIcon);
 229             }
 230         }
 231
 232         private string _publicUrl;
 233         public string PublicUrl
 234         {
 235             get { return _publicUrl; }
 236             set
 237             {
 238                 _publicUrl = value;
 239                 NotifyOfPropertyChange(() => PublicUrl);
 240             }
 241         }
 242
 243         private string _fileName;
 244         public string FileName
 245         {
 246             get { return _fileName; }
 247             set
 248             {
 249                 _fileName = value;
 250                 NotifyOfPropertyChange(() => FileName);
 251             }
 252         }
 253
 254         private string _container;
 255         public string Container
 256         {
 257             get { return _container; }
 258             set
 259             {
 260                 _container = value;
 261                 NotifyOfPropertyChange(() => Container);
 262             }
 263         }
 264
 265         private string _synchStatus;
 266         public string SynchStatus
 267         {
 268             get { return _synchStatus; }
 269             set
 270             {
 271                 _synchStatus = value;
 272                 NotifyOfPropertyChange(()=>SynchStatus);
 273             }
 274         }
 275
 276         public bool TagsChanged { get; private set; }
 277         public bool PermissionsChanged { get; private set; }
 278
 279         private bool _isBusy = true;
 280         public bool IsBusy
 281         {
 282             get { return _isBusy; }
 283             set
 284             {
 285                 _isBusy = value;
 286                 NotifyOfPropertyChange(() => IsBusy);
 287             }
 288         }
 289
 290
 291         public FilePropertiesViewModel(ShellViewModel shell,Task<ObjectInfo> pithosFile,string localFileName)
 292         {
 293             if (shell==null)
 294                 throw new ArgumentNullException("shell");
 295             if (pithosFile==null)
 296                 throw new ArgumentNullException("pithosFile");
 297             if (String.IsNullOrWhiteSpace(localFileName))
 298                 throw new ArgumentNullException("localFileName");
 299             Contract.EndContractBlock();
 300
 301
 302             _tags = new ObservableCollection<MetaValue>();
 303             _tags.CollectionChanged += (sender, evt) => { TagsChanged = true; };
 304             _permissions = new ObservableCollection<Permission>();
 305             _permissions.CollectionChanged += (sender, evt) => { PermissionsChanged = true; };
 306
 307             Shell = shell;
 308             LocalFileName = localFileName;
 309             pithosFile.ContinueWith(t =>
 310             {
 311                 if (t.IsFaulted)
 312                 {
 313                     IsBusy = false;
 314                     Execute.OnUIThread(()=>ShowError(t.Exception));
 315                     this.TryClose();
 316
 317                 }
 318                 else
 319                     Execute.OnUIThread(() => PithosFile = t.Result);
 320             });
 321
 322         }
 323
 324         private void ShowError(AggregateException exception)
 325         {
 326             MessageView view = null;
 327             if (exception.InnerException is RetryException)
 328                 view = new MessageView(exception.InnerException as RetryException);
 329             else if (exception.InnerException is WebException)
 330                 view = new MessageView(exception.InnerException as WebException);
 331             else
 332                 view = new MessageView(exception.InnerException);
 333             view.ShowDialog();
 334         }
 335
 336
 337         protected ShellViewModel Shell { get; set; }
 338
 339         private ObjectInfo _pithosFile;
 340         public ObjectInfo PithosFile
 341         {
 342             get { return _pithosFile; }
 343             set
 344             {
 345                 _pithosFile = value;
 346
 347                 Permissions.Clear();
 348                 Tags.Clear();
 349
 350                 var perms=from permission in value.Permissions
 351                             select new Permission(permission.Key, permission.Value);
 352                 perms.Apply(perm=>Permissions.Add(perm));
 353
 354                 var tags=from tag in value.Tags
 355                              select new MetaValue(tag.Key, tag.Value);
 356                 tags.Apply(tag=>Tags.Add(tag));
 357
 358                 Title = String.Format("{0} Properties", value.Name);
 359                 Kind=value.Content_Type;
 360                 ShortSize = value.Bytes.ToByteSize();
 361                 Size = String.Format("{0} ({1:N0} bytes)", ShortSize, value.Bytes);
 362                 Where = Uri.UnescapeDataString(value.Name);
 363                 FileName = Uri.UnescapeDataString(value.Name.Split('/').Last());
 364                 Container = value.Container;
 365                 Modified = value.Last_Modified;
 366                 ModifiedBy = value.ModifiedBy;
 367                 Version = value.Version??0;
 368
 369                 ContentDisposition = value.ContendDisposition;
 370                 ContentEncoding = value.ContentEncoding;
 371                 Manifest = value.Manifest;
 372                 IsPublic = value.IsPublic;
 373                 if (IsPublic)
 374                     PublicUrl = String.Format("{0}/v1{1}", Shell.Accounts.First(account=>account.UserName==PithosFile.Account).SiteUri,value.PublicUrl);
 375
 376                 if (Directory.Exists(LocalFileName))
 377                 {
 378                     FileIcon= new BitmapImage(new Uri("../Images/Folder.ico",UriKind.Relative));
 379                 }
 380                 else if (File.Exists(LocalFileName))
 381                 {
 382                     using (var icon = Icon.ExtractAssociatedIcon(LocalFileName))
 383                     {
 384                         FileIcon = Imaging.CreateBitmapSourceFromHIcon(icon.Handle, Int32Rect.Empty,
 385                                                                        BitmapSizeOptions.FromEmptyOptions());
 386                     }
 387                 }
 388
 389                 var status=Shell.GetFileStatus(LocalFileName);
 390                 SynchStatus = Enum.GetName(typeof (FileStatus), status);
 391
 392
 393                 NotifyOfPropertyChange(()=>PithosFile);
 394                 IsBusy = false;
 395             }
 396         }
 397
 398
 399         private readonly ObservableCollection<MetaValue> _tags ;
 400         public ObservableCollection<MetaValue> Tags
 401         {
 402             get { return _tags;}
 403         }
 404
 405         private readonly ObservableCollection<Permission> _permissions ;
 406
 407
 408         public ObservableCollection<Permission> Permissions
 409         {
 410             get { return _permissions; }
 411         }
 412
 413         public void Reload()
 414         {
 415             PithosFile=Shell.RefreshObjectInfo(PithosFile);
 416         }
 417
 418         public override void CanClose(Action<bool> callback)
 419         {
 420             base.CanClose(callback);
 421         }
 422
 423         public void SaveChanges()
 424         {
 425             DoSave();
 426             TryClose();
 427         }
 428
 429         public void RejectChanges()
 430         {
 431             TryClose();
 432         }
 433
 434         public void ApplyChanges()
 435         {
 436             DoSave();
 437         }
 438
 439         private void DoSave()
 440         {
 441             if (TagsChanged)
 442             {
 443                 PithosFile.Tags = this.Tags.ToDictionary(tag => tag.Name, tag => tag.Value);
 444             }
 445
 446             if (PermissionsChanged)
 447             {
 448                 PithosFile.Permissions = this.Permissions.ToDictionary(perm => perm.UserName, perm => perm.Value);
 449             }
 450
 451             PithosFile.ContendDisposition = ContentDisposition;
 452             PithosFile.ContentEncoding = ContentEncoding;
 453             PithosFile.Manifest = Manifest;
 454             PithosFile.IsPublic = IsPublic;
 455
 456             var monitor = Shell.Monitors[PithosFile.Account];
 457             monitor.CloudClient.UpdateMetadata(PithosFile);
 458
 459
 460             TagsChanged = false;
 461             PermissionsChanged = false;
 462         }
 463
 464
 465     }
 466 }