private void OnSelectedPathChanged(string newPath)
{
// check if changed from outside
if (!string.IsNullOrEmpty(newPath) && newPath != this.selectedItem?.FullName)
{
IEnumerable <ExplorerItem> items = this.InternalItemsSource;
ExplorerItem item = null;
char[] separators = this.DirectorySeparatorChars.ToArray();
string[] folders = newPath.Split(separators, StringSplitOptions.RemoveEmptyEntries);
foreach (var folder in folders)
{
item = items.Where(i => string.Equals(i.Name.Trim(separators), folder, this.IsCaseSensitive ? StringComparison.Ordinal : StringComparison.OrdinalIgnoreCase)).FirstOrDefault();
if (item != null)
{
item.IsExpanded = true;
items = item.Children;
}
else
{
Window main = Application.Current.MainWindow;
MessageBox.Show(main, $"Can't find '{newPath}'. Check the spelling and try again.", main.Title, MessageBoxButton.OK, MessageBoxImage.Error, MessageBoxResult.OK, MessageBoxOptions.None);
return;
}
}
SelectItem(item);
item.IsSelectedInTree = true;
}
}
private void SelectItem(ExplorerItem item)
{
this.SelectedItem = item;
this.selectedItem = item; // to use from working thread
this.SelectedValue = item?.Content;
this.ListItems = item?.Files;
this.SelectedPath = item.FullName;
}
private void OnClick(object sender, MouseButtonEventArgs e)
{
if (e.ClickCount == 2)
{
FrameworkElement sp = sender as FrameworkElement;
ExplorerItem item = sp.DataContext as ExplorerItem;
item.IsSelectedInTree = true;
}
}
private void OnSelectedFolderChanged(object sender, RoutedPropertyChangedEventArgs <object> e)
{
ExplorerItem item = e.NewValue as ExplorerItem;
this.SelectedItem = item;
this.selectedItem = item; // to use from working thread
this.SelectedValue = item?.Content;
this.ListItems = item?.Files;
}
private static void OnIsSelectedInTreeChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
ExplorerItem explorerItem = (ExplorerItem)d;
bool newValue = (bool)e.NewValue;
if (newValue)
{
explorerItem.Refresh(false);
}
}
private void OnMouseDoubleClick(object sender, MouseEventArgs e)
{
FrameworkElement fe = e.OriginalSource as FrameworkElement;
if (fe != null)
{
ExplorerItem ei = fe.DataContext as ExplorerItem;
if (ei != null)
{
if (ei.Parent != null)
{
ei.Parent.IsExpanded = true;
}
ei.IsSelectedInTree = true;
}
}
}
internal ExplorerItem(IExplorerItem content, ExplorerItem parent)
{
this.Parent = parent;
content.Refresh += OnRefresh;
SetValue(NameProperty, content.Name);
SetValue(FullNameProperty, content.FullName);
SetValue(LinkProperty, content.Link);
SetValue(SizeProperty, content.Size);
SetValue(DateProperty, content.Date);
SetValue(TypeProperty, content.Type);
SetValue(IconProperty, content.Icon);
SetValue(IsDirectoryProperty, content.IsDirectory);
this.Content = content;
this.children = new ObservableCollection <ExplorerItem>();
if (content.HasChildren)
{
this.children.Add(new ExplorerItem(new Dummy(), this));
}
this.folders = new CollectionViewSource()
{
Source = this.children
};
this.folders.View.SortDescriptions.Add(new SortDescription("Name", ListSortDirection.Ascending));
this.folders.View.Filter = i => ((ExplorerItem)i).IsDirectory;
this.files = new CollectionViewSource()
{
Source = this.children
};
this.files.View.SortDescriptions.Add(new SortDescription("IsDirectory", ListSortDirection.Descending));
this.files.View.SortDescriptions.Add(new SortDescription("Name", ListSortDirection.Ascending));
this.Children = this.children;
this.Folders = this.folders.View;
this.Files = this.files.View;
}
private void OnSelectedFolderChanged(object sender, RoutedPropertyChangedEventArgs <object> e)
{
ExplorerItem item = e.NewValue as ExplorerItem;
SelectItem(item);
}
