private async void RemoveItem(object obj)
{
if (await FocusedNode.RemoveAsync(false) != NodeActionResult.Cancelled)
{
String parentNodePath = ((new DirectoryInfo(FocusedNode.NodePath)).Parent).FullName;
String sfoRootPath = Path.Combine(ApplicationData.Current.LocalFolder.Path,
AppResources.DownloadsDirectory.Replace("\\", ""));
// Check if the previous folders of the path are empty and
// remove from the offline and the DB on this case
while (String.Compare(parentNodePath, sfoRootPath) != 0)
{
var folderPathToRemove = parentNodePath;
parentNodePath = ((new DirectoryInfo(parentNodePath)).Parent).FullName;
if (FolderService.IsEmptyFolder(folderPathToRemove))
{
Deployment.Current.Dispatcher.BeginInvoke(() => GoFolderUp());
FolderService.DeleteFolder(folderPathToRemove);
SavedForOffline.DeleteNodeByLocalPath(folderPathToRemove);
}
}
Refresh();
}
}
private void MultipleRemoveItems(int count)
{
var helperList = new List <IOfflineNode>(count);
helperList.AddRange(ChildNodes.Where(n => n.IsMultiSelected));
Task.Run(async() =>
{
WaitHandle[] waitEventRequests = new WaitHandle[count];
int index = 0;
foreach (var node in helperList)
{
waitEventRequests[index] = new AutoResetEvent(false);
await node.RemoveAsync(true, (AutoResetEvent)waitEventRequests[index]);
index++;
}
WaitHandle.WaitAll(waitEventRequests);
String parentNodePath = Path.GetDirectoryName(this.FolderRootNode.NodePath);
String sfoRootPath = Path.Combine(ApplicationData.Current.LocalFolder.Path,
AppResources.DownloadsDirectory.Replace("\\", ""));
// Check if the previous folders of the path are empty and
// remove from the offline and the DB on this case
while (String.Compare(parentNodePath, sfoRootPath) != 0)
{
var folderPathToRemove = parentNodePath;
parentNodePath = ((new DirectoryInfo(parentNodePath)).Parent).FullName;
if (FolderService.IsEmptyFolder(folderPathToRemove))
{
Deployment.Current.Dispatcher.BeginInvoke(() => GoFolderUp());
FolderService.DeleteFolder(folderPathToRemove);
SavedForOffline.DeleteNodeByLocalPath(folderPathToRemove);
}
}
Deployment.Current.Dispatcher.BeginInvoke(() => ProgressService.SetProgressIndicator(false));
Refresh();
});
this.IsMultiSelectActive = false;
}
public async Task <bool> RemoveForOffline()
{
bool result;
MNode parentNode = SdkService.MegaSdk.getParentNode(this.OriginalMNode);
String parentNodePath = Path.Combine(ApplicationData.Current.LocalFolder.Path,
AppResources.DownloadsDirectory.Replace("\\", ""),
(SdkService.MegaSdk.getNodePath(parentNode)).Remove(0, 1).Replace("/", "\\"));
String sfoRootPath = Path.Combine(ApplicationData.Current.LocalFolder.Path,
AppResources.DownloadsDirectory.Replace("\\", ""));
var nodePath = Path.Combine(parentNodePath, this.Name);
if (this.IsFolder)
{
await RecursiveRemoveForOffline(parentNodePath, this.Name);
result = FolderService.DeleteFolder(nodePath, true);
}
else
{
// Search if the file has a pending transfer for offline and cancel it on this case
TransfersService.CancelPendingNodeOfflineTransfers(nodePath, this.IsFolder);
result = FileService.DeleteFile(nodePath);
}
SavedForOffline.DeleteNodeByLocalPath(nodePath);
this.IsAvailableOffline = this.IsSelectedForOffline = false;
// Check if the previous folders of the path are empty and
// remove from the offline and the DB on this case
while (String.Compare(parentNodePath, sfoRootPath) != 0)
{
var folderPathToRemove = parentNodePath;
parentNodePath = ((new DirectoryInfo(parentNodePath)).Parent).FullName;
if (FolderService.IsEmptyFolder(folderPathToRemove))
{
result = result & FolderService.DeleteFolder(folderPathToRemove);
SavedForOffline.DeleteNodeByLocalPath(folderPathToRemove);
}
}
return(result);
}
/// <summary>
/// Load the nodes for this specific folder
/// </summary>
public void LoadChildNodes()
{
// First cancel any other loading task that is busy
CancelLoad();
// FolderRootNode should not be null
if (FolderRootNode == null)
{
OnUiThread(() =>
{
new CustomMessageDialog(
AppMessages.LoadNodesFailed_Title,
AppMessages.LoadNodesFailed,
App.AppInformation,
MessageDialogButtons.Ok).ShowDialog();
});
return;
}
SetProgressIndication(true);
// Process is started so we can set the empty content template to loading already
SetEmptyContentTemplate(true);
// Clear the child nodes to make a fresh start
ClearChildNodes();
// Set the correct view for the main drive. Do this after the childs are cleared to speed things up
SetViewOnLoad();
// Build the bread crumbs. Do this before loading the nodes so that the user can click on home
OnUiThread(BuildBreadCrumbs);
// Create the option to cancel
CreateLoadCancelOption();
// Load and create the childnodes for the folder
Task.Factory.StartNew(() =>
{
try
{
ObservableCollection <IOfflineNode> tempChildNodes = new ObservableCollection <IOfflineNode>();
String[] childFolders = Directory.GetDirectories(FolderRootNode.NodePath);
foreach (var folder in childFolders)
{
var childNode = new OfflineFolderNodeViewModel(new DirectoryInfo(folder), tempChildNodes);
if (childNode == null)
{
continue;
}
if (FolderService.IsEmptyFolder(childNode.NodePath))
{
FolderService.DeleteFolder(childNode.NodePath, true);
continue;
}
Deployment.Current.Dispatcher.BeginInvoke(() => tempChildNodes.Add(childNode));
}
String[] childFiles = Directory.GetFiles(FolderRootNode.NodePath);
foreach (var file in childFiles)
{
var fileInfo = new FileInfo(file);
if (FileService.IsPendingTransferFile(fileInfo.Name))
{
if (!(TransfersService.MegaTransfers.Downloads.Count > 0))
{
FileService.DeleteFile(fileInfo.FullName);
}
continue;
}
var childNode = new OfflineFileNodeViewModel(fileInfo, tempChildNodes);
if (childNode == null)
{
continue;
}
Deployment.Current.Dispatcher.BeginInvoke(() => tempChildNodes.Add(childNode));
}
OrderChildNodes(tempChildNodes);
// Show the user that processing the childnodes is done
SetProgressIndication(false);
// Set empty content to folder instead of loading view
SetEmptyContentTemplate(false);
OnUiThread(() => OnPropertyChanged("HasChildNodesBinding"));
}
catch (OperationCanceledException)
{
// Do nothing. Just exit this background process because a cancellation exception has been thrown
}
}, LoadingCancelToken, TaskCreationOptions.PreferFairness, TaskScheduler.Current);
}
/// <summary>
/// Load the nodes for this specific folder
/// </summary>
public override void LoadChildNodes()
{
// First cancel any other loading task that is busy
CancelLoad();
// FolderRootNode should not be null
if (FolderRootNode == null)
{
OnUiThread(async() =>
{
await DialogService.ShowAlertAsync(
ResourceService.AppMessages.GetString("AM_LoadNodesFailed_Title"),
ResourceService.AppMessages.GetString("AM_LoadNodesFailed"));
});
return;
}
SetProgressIndication(true);
// Process is started so we can set the empty content template to loading already
SetEmptyContent(true);
// Clear the child nodes to make a fresh start
ClearChildNodes();
// Set the correct view for the main drive. Do this after the childs are cleared to speed things up
SetViewOnLoad();
// Build the bread crumbs. Do this before loading the nodes so that the user can click on home
OnUiThread(() => this.BreadCrumb.Create(this));
// Create the option to cancel
CreateLoadCancelOption();
// Load and create the childnodes for the folder
Task.Factory.StartNew(() =>
{
try
{
// We will not add nodes one by one in the dispatcher but in groups
List <IOfflineNode> helperList;
try { helperList = new List <IOfflineNode>(1024); }
catch (ArgumentOutOfRangeException) { helperList = new List <IOfflineNode>(); }
this.ItemCollection.DisableCollectionChangedDetection();
string[] childFolders = Directory.GetDirectories(FolderRootNode.NodePath);
foreach (var folder in childFolders)
{
var childNode = new OfflineFolderNodeViewModel(new DirectoryInfo(folder), this, this.ItemCollection.Items);
if (childNode == null)
{
continue;
}
if (FolderService.IsEmptyFolder(childNode.NodePath))
{
FolderService.DeleteFolder(childNode.NodePath, true);
continue;
}
OnUiThread(() => this.ItemCollection.Items.Add(childNode));
}
string[] childFiles = Directory.GetFiles(FolderRootNode.NodePath);
foreach (var file in childFiles)
{
var fileInfo = new FileInfo(file);
if (FileService.IsPendingTransferFile(fileInfo.Name))
{
if (!(TransferService.MegaTransfers.Downloads.Count > 0))
{
FileService.DeleteFile(fileInfo.FullName);
}
continue;
}
var childNode = new OfflineFileNodeViewModel(fileInfo, this, this.ItemCollection.Items);
OnUiThread(() => this.ItemCollection.Items.Add(childNode));
}
this.ItemCollection.EnableCollectionChangedDetection();
this.OrderChildNodes();
// Show the user that processing the childnodes is done
SetProgressIndication(false);
// Set empty content to folder instead of loading view
SetEmptyContent(false);
}
catch (OperationCanceledException)
{
// Do nothing. Just exit this background process because a cancellation exception has been thrown
}
}, LoadingCancelToken, TaskCreationOptions.PreferFairness, TaskScheduler.Current);
}
