// Called when RecentlyCreated.tx changes (typically twice for some reason).
// This method runs in a worker thread and may run in multiple threads concurrently.
private static void _watcher_Changed(object sender, FileSystemEventArgs e)
{
using (Log.DebugCall())
{
try
{
List <PathItem> files = null;
List <PathItem> folders = null;
bool didRaiseFilesEvent = false;
bool didRaiseFoldersEvent = false;
// Try not to read the files at the same time they're being written by the logger, but don't wait forever.
using (new NamedMutexWait(NamedMutexWait.DataDirMUtexName, timeoutMs: 10000, throwOnTimeout: false))
{
var lines = MaybeReadFile(_foldersFile, ref _foldersTimestamp);
folders = PathItem.MakeRecentlyCreatedPathItems(lines, true);
lines = MaybeReadFile(_filesFile, ref _filesTimestamp);
files = PathItem.MakeRecentlyCreatedPathItems(lines, false);
}
if (files != null && folders != null)
{
// Old versions of the logger don't update the folder list, so there might be folders in the
// file list that aren't in the folder list. Combine the folders from both lists.
var combinedFolders = new List <PathItem>();
var hashSet = new HashSet <string>(StringComparer.OrdinalIgnoreCase); // for filtering duplicates.
foreach (PathItem file in files)
{
if (hashSet.Add(file.File.Directory.FullName))
{
combinedFolders.Add(new PathItem(file.File.Directory, true));
}
}
foreach (PathItem folder in folders)
{
if (hashSet.Add(folder.Folder.FullName))
{
combinedFolders.Add(folder);
}
}
if (!Folders.SequenceEqual(combinedFolders))
{
didRaiseFoldersEvent = true;
Folders = combinedFolders;
}
}
if (files != null && !Files.SequenceEqual(files))
{
didRaiseFilesEvent = true;
Files = files;
}
if (sender is bool && (bool)sender)
{
if (!didRaiseFilesEvent)
{
Files = Files;
}
if (!didRaiseFoldersEvent)
{
Folders = Folders;
}
}
}
catch (Exception ex)
{
Debug.WriteLine(ex.ToString());
}
}
}
// Called when the user views the specified file so we can keep track of which files
// have been viewed and when.
public void UpdateViewedFiles(string viewedFile)
{
// First, add/update the file in both file collections (_savedViewedFiles and _dictFiles).
DateTime now = DateTime.Now;
ViewedPath viewedFileObj = _savedViewedFiles.Find(item => item.Path.Equals(viewedFile, StringComparison.OrdinalIgnoreCase));
if (viewedFileObj == null)
{
viewedFileObj = new ViewedPath {
Path = viewedFile, ViewTime = now
};
_savedViewedFiles.Add(viewedFileObj);
}
else
{
viewedFileObj.ViewTime = now;
}
PathItem filePathItem;
if (!_dictFiles.TryGetValue(viewedFile, out filePathItem))
{
// We assume the file exists because it was just loaded into the viewer.
var txInfo = new TXFileInfo()
{
IsFolder = false,
FullPath = viewedFile,
};
filePathItem = new PathItem(txInfo);
_dictFiles[viewedFile] = filePathItem;
}
filePathItem.ViewTime = now;
// Now add/update the folder in both folder collections (_savedViewedFolders and _dictFolders).
string folder = System.IO.Path.GetDirectoryName(viewedFile);
ViewedPath viewedFolderObj = _savedViewedFolders.Find(item => item.Path.Equals(folder, StringComparison.OrdinalIgnoreCase));
if (viewedFolderObj == null)
{
viewedFolderObj = new ViewedPath {
Path = folder, ViewTime = now
};
_savedViewedFolders.Add(viewedFolderObj);
}
else
{
viewedFolderObj.ViewTime = now;
}
PathItem folderPathItem;
if (!_dictFolders.TryGetValue(folder, out folderPathItem))
{
var txInfo = new TXFileInfo()
{
IsFolder = true,
FullPath = folder
};
folderPathItem = new PathItem(txInfo);
_dictFolders[folder] = folderPathItem;
}
folderPathItem.ViewTime = now;
}