/// <summary>
/// Handler for file or folder created or deleted.</summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void Watcher_FileChanged(object sender, FileSystemEventArgs e)
{
IFileSystemResourceFolder folder = m_treeContext.GetLastSelected <IFileSystemResourceFolder>();
string selectedFolder = folder == null ? string.Empty : GetNormalizedName(folder.FullPath);
string parentDirName = Path.GetDirectoryName(e.FullPath);
parentDirName = GetNormalizedName(parentDirName);
string itemName = GetNormalizedName(e.FullPath);
if ((e.ChangeType & WatcherChangeTypes.Created) == WatcherChangeTypes.Created)
{
var attr = File.GetAttributes(e.FullPath);
bool isDirectory = (attr & FileAttributes.Directory) == FileAttributes.Directory;
if (isDirectory)
{
m_treeControlAdapter.Refresh(m_treeContext.RootFolder);
}
else if (parentDirName == selectedFolder)
{
TreeSelectionChanged(m_treeContext, EventArgs.Empty);
}
}
else if ((e.ChangeType & WatcherChangeTypes.Deleted) == WatcherChangeTypes.Deleted)
{
m_treeControlAdapter.Refresh(m_treeContext.RootFolder);
if (parentDirName == selectedFolder)
{
TreeSelectionChanged(m_treeContext, EventArgs.Empty);
}
else if (itemName == selectedFolder)
{
m_treeContext.Clear();
}
}
}
private void Watcher_Renamed(object sender, RenamedEventArgs e)
{
// this function interacts with m_treeControlAdapter in way that
// might not be thread safe. We can push this functionality into the
// ui thread, so we don't get any race conditions while rendering or
// shutting down.
if (m_uiThreadContext != SynchronizationContext.Current)
{
m_uiThreadContext.Post(delegate { Watcher_Renamed(sender, e); }, null);
return;
}
var attr = File.GetAttributes(e.FullPath);
bool isDirectory = (attr & FileAttributes.Directory) == FileAttributes.Directory;
IFileSystemResourceFolder folder = m_treeContext.GetLastSelected <IFileSystemResourceFolder>();
string selectedFolder = folder == null ? string.Empty : GetNormalizedName(folder.FullPath);
if (isDirectory)
{//
m_treeControlAdapter.Refresh(m_treeContext.RootFolder);
}
else // it is a file
{
string dirName = Path.GetDirectoryName(e.OldFullPath);
dirName = GetNormalizedName(dirName);
if (selectedFolder == dirName)
{
TreeSelectionChanged(m_treeContext, EventArgs.Empty);
}
}
}
private void m_watcher_Renamed(object sender, RenamedEventArgs e)
{
var attr = File.GetAttributes(e.FullPath);
bool isDirectory = (attr & FileAttributes.Directory) == FileAttributes.Directory;
string rootFolder = Path.GetDirectoryName(((IFileSystemResourceFolder)m_treeContext.RootFolder).FullPath).ToLower();
IFileSystemResourceFolder folder = m_treeContext.GetLastSelected <IFileSystemResourceFolder>();
string selectedFolder = folder != null ? (folder.FullPath).ToLower().TrimEnd('\\') : null;
if (isDirectory)
{//
var dirInfo = new DirectoryInfo(e.OldFullPath);
string dirName = dirInfo.FullName.ToLower();
string parentDir = dirInfo.Parent.FullName.ToLower();
// renaming root folder
if (dirName == rootFolder)
{
throw new InvalidOperationException("Cannot rename root folder");
}
m_treeContext.Reload();
RefreshThumbnails();
}
else // it is a file
{
string dirName = Path.GetDirectoryName(e.OldFullPath).ToLower();
if (selectedFolder == dirName)
{
RefreshThumbnails();
}
}
}
/// <summary>
/// Handler for file or folder created or deleted.</summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void Watcher_FileChanged(object sender, FileSystemEventArgs e)
{
string rootFolder = Path.GetDirectoryName(((IFileSystemResourceFolder)m_treeContext.RootFolder).FullPath).ToLower();
IFileSystemResourceFolder folder = m_treeContext.GetLastSelected <IFileSystemResourceFolder>();
string selectedFolder = folder != null ? (folder.FullPath).ToLower().TrimEnd('\\') : null;
WatcherChangeTypes createOrDelete = WatcherChangeTypes.Created | WatcherChangeTypes.Deleted;
if ((e.ChangeType & createOrDelete) != 0)
{
// isFile is just a hint, some files don't have ext.
bool isFile = !string.IsNullOrWhiteSpace(Path.GetExtension(e.FullPath));
string dirName = Path.GetDirectoryName(e.FullPath).ToLower();
if (dirName == rootFolder ||
dirName == selectedFolder)
{
if ((e.ChangeType & WatcherChangeTypes.Deleted) != 0)
{
m_treeContext.Reload();
RefreshThumbnails();
}
else
{
m_treeControlAdapter.Refresh(folder ?? m_treeContext.RootFolder);
}
}
if (isFile)
{
RefreshThumbnails();
}
}
}
/// <summary>
/// Sets the root resource folder, registers events and refreshes controls</summary>
/// <param name="rootFolder">Resource folder</param>
public void SetRootFolder(IResourceFolder rootFolder)
{
if (m_watcher == null)
{
m_uiThreadContext = SynchronizationContext.Current;
m_watcher = new FileSystemWatcher();
m_watcher.SynchronizingObject = m_mainForm;
m_watcher.IncludeSubdirectories = true;
m_watcher.EnableRaisingEvents = false;
m_watcher.Created += Watcher_FileChanged;
m_watcher.Deleted += Watcher_FileChanged;
m_watcher.Renamed += Watcher_Renamed;
// We need to shut down the watcher before the dispose phase begins
// this is because file events can occur while disposing other MEF objects
// (eg, flushing out a cached file). When this happens, we can get a
// callback that can end up accessing MEF objects that have already
// been disposed.
Application.ApplicationExit += ShutdownWatcher;
}
IFileSystemResourceFolder rootDirectory = rootFolder as IFileSystemResourceFolder;
if (rootDirectory != null)
{
m_watcher.Path = rootDirectory.FullPath;
m_watcher.EnableRaisingEvents = true;
}
else
{
m_watcher.Path = null;
m_watcher.EnableRaisingEvents = false;
}
if (m_treeContext != null)
{
m_treeContext.SelectionChanged -= TreeSelectionChanged;
}
m_treeContext = new TreeViewContext(rootFolder);
m_treeContext.SelectionChanged += TreeSelectionChanged;
m_treeControlAdapter.TreeView = m_treeContext;
if (m_listContext != null)
{
m_listContext.SelectionChanged -= listSelectionContext_SelectionChanged;
}
m_listContext = new ListViewContext();
m_listContext.SelectionChanged += listSelectionContext_SelectionChanged;
m_listViewAdapter.ListView = m_listContext;
m_treeControlAdapter.Refresh(rootFolder);
}
/// <summary>
/// Handler for file or folder created or deleted.</summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void Watcher_FileChanged(object sender, FileSystemEventArgs e)
{
// this function interacts with m_treeControlAdapter in way that
// might not be thread safe. We can push this functionality into the
// ui thread, so we don't get any race conditions while rendering or
// shutting down.
if (m_uiThreadContext != SynchronizationContext.Current)
{
m_uiThreadContext.Post(delegate { Watcher_FileChanged(sender, e); }, null);
return;
}
try
{
IFileSystemResourceFolder folder = m_treeContext.GetLastSelected <IFileSystemResourceFolder>();
string selectedFolder = folder == null ? string.Empty : GetNormalizedName(folder.FullPath);
string parentDirName = Path.GetDirectoryName(e.FullPath);
parentDirName = GetNormalizedName(parentDirName);
string itemName = GetNormalizedName(e.FullPath);
if ((e.ChangeType & WatcherChangeTypes.Created) == WatcherChangeTypes.Created)
{
var attr = File.GetAttributes(e.FullPath);
bool isDirectory = (attr & FileAttributes.Directory) == FileAttributes.Directory;
if (isDirectory)
{
m_treeControlAdapter.Refresh(m_treeContext.RootFolder);
}
else if (parentDirName == selectedFolder)
{
TreeSelectionChanged(m_treeContext, EventArgs.Empty);
}
}
else if ((e.ChangeType & WatcherChangeTypes.Deleted) == WatcherChangeTypes.Deleted)
{
m_treeControlAdapter.Refresh(m_treeContext.RootFolder);
if (parentDirName == selectedFolder)
{
TreeSelectionChanged(m_treeContext, EventArgs.Empty);
}
else if (itemName == selectedFolder)
{
m_treeContext.Clear();
}
}
}
catch (System.IO.IOException)
{
// catch and suppress IO exceptions. This can occur often if (for example) we can't access the file because
// of sharing priviledges
}
}
/// <summary>
/// Sets the root resource folder, registers events and refreshes controls</summary>
/// <param name="rootFolder">Resource folder</param>
public void SetRootFolder(IResourceFolder rootFolder)
{
if (m_watcher == null)
{
m_watcher = new FileSystemWatcher();
m_watcher.SynchronizingObject = m_mainForm;
m_watcher.IncludeSubdirectories = true;
m_watcher.EnableRaisingEvents = false;
m_watcher.Created += Watcher_FileChanged;
m_watcher.Deleted += Watcher_FileChanged;
m_watcher.Renamed += Watcher_Renamed;
}
IFileSystemResourceFolder rootDirectory = rootFolder as IFileSystemResourceFolder;
if (rootDirectory != null)
{
m_watcher.Path = rootDirectory.FullPath;
m_watcher.EnableRaisingEvents = true;
}
else
{
m_watcher.Path = null;
m_watcher.EnableRaisingEvents = false;
}
if (m_treeContext != null)
{
m_treeContext.SelectionChanged -= TreeSelectionChanged;
}
m_treeContext = new TreeViewContext(rootFolder);
m_treeContext.SelectionChanged += TreeSelectionChanged;
m_treeControlAdapter.TreeView = m_treeContext;
if (m_listContext != null)
{
m_listContext.SelectionChanged -= listSelectionContext_SelectionChanged;
}
m_listContext = new ListViewContext();
m_listContext.SelectionChanged += listSelectionContext_SelectionChanged;
m_listViewAdapter.ListView = m_listContext;
m_treeControlAdapter.Refresh(rootFolder);
}
private void Watcher_Renamed(object sender, RenamedEventArgs e)
{
var attr = File.GetAttributes(e.FullPath);
bool isDirectory = (attr & FileAttributes.Directory) == FileAttributes.Directory;
IFileSystemResourceFolder folder = m_treeContext.GetLastSelected <IFileSystemResourceFolder>();
string selectedFolder = folder == null ? string.Empty : GetNormalizedName(folder.FullPath);
if (isDirectory)
{//
m_treeControlAdapter.Refresh(m_treeContext.RootFolder);
}
else // it is a file
{
string dirName = Path.GetDirectoryName(e.OldFullPath);
dirName = GetNormalizedName(dirName);
if (selectedFolder == dirName)
{
TreeSelectionChanged(m_treeContext, EventArgs.Empty);
}
}
}
