/// <summary>
/// Adds another item into the collection of file/folder items
/// and ensures the operation is performed on the dispatcher thread.
/// </summary>
private void CurrentItemAdd(IFolderItemViewModel item)
{
Application.Current.Dispatcher.Invoke(() =>
{
_CurrentItems.Add(item);
});
}
private IFolderItemViewModel InitializeView(IPathModel newPath)
{
string pathroot = string.Empty;
IFolderItemViewModel selectedItem = null;
string[] dirs;
if (newPath == null)
{
if (string.IsNullOrEmpty(CurrentFolder) == false)
{
return(null); // No parameter available at this time ...
}
else
{
try
{
newPath = PathFactory.Create(CurrentFolder);
}
catch { }
}
}
pathroot = newPath.PathRoot;
dirs = PathFactory.GetDirectories(newPath.Path);
// add drives
foreach (string s in Directory.GetLogicalDrives())
{
IFolderItemViewModel info = FolderControlsLib.Factory.CreateLogicalDrive(s);
CurrentItemsAdd(info);
// add items under current folder if we currently create the root folder of the current path
if (string.Compare(pathroot, s, true) == 0)
{
for (int i = 1; i < dirs.Length; i++)
{
try
{
string curdir = PathFactory.Join(dirs, 0, i + 1);
var curPath = PathFactory.Create(curdir);
var info2 = new FolderItemViewModel(curPath, dirs[i]);
CurrentItemsAdd(info2);
}
catch // Non-existing/unknown items will throw an exception here...
{
}
}
selectedItem = _CurrentItems.Last();
}
}
return(selectedItem);
}
/// <summary>
/// Adds another item into the collection of file/folder items
/// and ensures the operation is performed on the dispatcher thread.
/// </summary>
private IFolderItemViewModel CurrentItemsAdd(IFolderItemViewModel item)
{
Application.Current.Dispatcher.Invoke(() =>
{
_CurrentItems.AddItem(item.ItemPath, item);
_CurrentItems.Sort(it => it.ItemPath);
});
return(item);
}
/// <summary>
/// Can be invoked to refresh the currently visible set of data.
/// </summary>
public bool PopulateView(IPathModel newPath)
{
lock (this._LockObject)
{
try
{
CurrentItemClear();
// add drives
string pathroot = string.Empty;
if (newPath == null)
{
if (string.IsNullOrEmpty(this.CurrentFolder) == false)
{
try
{
pathroot = System.IO.Path.GetPathRoot(CurrentFolder);
}
catch
{
pathroot = string.Empty;
}
}
}
else
{
pathroot = System.IO.Path.GetPathRoot(newPath.Path);
}
foreach (string s in Directory.GetLogicalDrives())
{
IFolderItemViewModel info = FolderControlsLib.Factory.CreateLogicalDrive(s);
CurrentItemAdd(info);
// add items under current folder if we currently create the root folder of the current path
if (string.IsNullOrEmpty(pathroot) == false && string.Compare(pathroot, s, true) == 0)
{
string[] dirs;
if (newPath == null)
{
dirs = PathFactory.GetDirectories(CurrentFolder);
}
else
{
dirs = PathFactory.GetDirectories(newPath.Path);
}
for (int i = 1; i < dirs.Length; i++)
{
try
{
string curdir = PathFactory.Join(dirs, 0, i + 1);
var curPath = PathFactory.Create(curdir);
info = new FolderItemViewModel(curPath, dirs[i], false);
CurrentItemAdd(info);
}
catch // Non-existing/unknown items will thrown an exception here...
{
}
}
SelectedItem = _CurrentItems.Last();
}
}
// Force a selection on to the control when there is no selected item, yet
if (this._CurrentItems != null && SelectedItem == null)
{
if (this._CurrentItems.Count > 0)
{
this.SelectedItem = this._CurrentItems.Last();
}
}
return(true);
}
catch (Exception exp)
{
Console.WriteLine("{0} -> {1}", exp.Message, exp.StackTrace);
return(false);
}
}
}
