public ReadOnlyFile(MemoryStream initialContent, FileInfo path, UpToDateFile.BackEnd backEnd)
{
m_upToDateFile = new UpToDateFile(initialContent, path, s => { }, backEnd);
m_backEnd = backEnd;
m_upToDateFile.FileChanged += () => FileModifiedExternally.Execute();
m_upToDateFile.FileDeleted += () => FileDeletedExternally.Execute();
}
public bool Move(FileInfo newPath, Func <bool> replace)
{
var oldFile = File;
if (newPath.Exists)
{
if (replace())
{
newPath.Delete();
}
else
{
return(false);
}
}
var stream = m_upToDateFile.Migrate();
m_upToDateFile.Dispose();
System.IO.File.Move(oldFile.FullName, newPath.FullName);
m_upToDateFile = new UpToDateFile(stream, newPath, s => { }, m_backEnd);
m_upToDateFile.FileChanged += () => FileModifiedExternally.Execute();
m_upToDateFile.FileDeleted += () => FileDeletedExternally.Execute();
Moved.Execute(new Changed <FileInfo>(oldFile, File));
return(true);
}
public bool Move(FileInfo newPath, Func <bool> replace)
{
var oldFile = File;
if (newPath.Exists)
{
if (replace())
{
newPath.Delete();
}
else
{
return(false);
}
}
var stream = m_upToDateFile.Migrate();
newPath.Directory.EnsureExists(); //This can fail (returning false) if it does then we subsequently get a (hopefully) useful exception from File.Move
System.IO.File.Move(File.FullName, newPath.FullName);
m_upToDateFile.Dispose();
m_upToDateFile = new UpToDateFile(stream, newPath, m_saveTo, m_backEnd);
m_upToDateFile.FileChanged += () => FileModifiedExternally.Execute();
m_upToDateFile.FileDeleted += () => FileDeletedExternally.Execute();
Moved.Execute(new Changed <FileInfo>(oldFile, File));
return(true);
}
/// <summary>
///
/// </summary>
/// <param name="initialContent">Represents the current contents of the file. Reference is not held. A copy is made.</param>
/// <param name="path"></param>
/// <param name="saveTo"></param>
protected SaveableFile(MemoryStream initialContent, FileInfo path, Action <Stream> saveTo, UpToDateFile.BackEnd backEnd)
{
m_upToDateFile = new UpToDateFile(initialContent, path, saveTo, backEnd);
m_upToDateFile.FileChanged += () => FileModifiedExternally.Execute();
m_upToDateFile.FileDeleted += () => FileDeletedExternally.Execute();
m_saveTo = saveTo;
m_backEnd = backEnd;
}
internal void FileDeleted(UpToDateFile upToDateFile)
{
lock (m_deleted)
{
m_deleted.Add(upToDateFile);
}
m_event.Set();
}
internal void FileChanged(UpToDateFile upToDateFile)
{
lock (m_modified)
{
m_modified.Add(upToDateFile);
}
m_event.Set();
}
public void GotMoved(FileInfo newPath)
{
var oldFile = File;
m_upToDateFile = new UpToDateFile(m_upToDateFile.Migrate(), newPath, s => { }, m_backEnd);
m_upToDateFile.FileChanged += () => FileModifiedExternally.Execute();
m_upToDateFile.FileDeleted += () => FileDeletedExternally.Execute();
Moved.Execute(new Changed <FileInfo>(oldFile, File));
}
internal void Abort(UpToDateFile upToDateFile)
{
lock (m_modified)
{
m_modified.Remove(upToDateFile);
}
lock (m_deleted)
{
m_deleted.Remove(upToDateFile);
}
}
public void SaveAs(FileInfo path)
{
var oldPath = File;
m_upToDateFile.Dispose();
using (MemoryStream m = new MemoryStream())
{
m_upToDateFile = new UpToDateFile(m, path, m_saveTo, m_backEnd);
}
m_upToDateFile.FileChanged += () => FileModifiedExternally.Execute();
m_upToDateFile.FileDeleted += () => FileDeletedExternally.Execute();
Save();
Moved.Execute(new Changed <FileInfo>(oldPath, File));
}
