void Save(ILItem item, string prefix = "")
{
prefix += item.DisplayName;
if (item == _selectedItem)
{
Selection = prefix;
}
if (item.Children.Count > 0)
{
if (item.IsExpanded)
{
Expanded.Add(prefix);
}
else
{
Collapsed.Add(prefix);
return;
}
prefix += ".";
foreach (var child in item.Children)
{
Save(child, prefix);
}
}
}
void Restore(ILItem item, ref bool hasSelection, string prefix = "")
{
prefix += item.DisplayName;
if (prefix == Selection)
{
item.Select();
hasSelection = true;
}
if (item.Children.Count > 0)
{
if (Expanded.Contains(prefix))
{
item.IsExpanded = true;
}
else if (Collapsed.Contains(prefix))
{
item.IsExpanded = false;
return;
}
prefix += ".";
foreach (var child in item.Children)
{
Restore(child, ref hasSelection, prefix);
}
}
}
static ContextMenu GetContextMenu(ILItem ilItem)
{
var menu = new ContextMenu();
if (ilItem == null)
{
return(menu);
}
foreach (var command in ILItem.Commands)
{
if (command == null)
{
if (menu.Items.Count > 0 &&
!(menu.Items[menu.Items.Count - 1] is Separator))
{
menu.Items.Add(new Separator());
}
}
else if (command.CanShow(ilItem))
{
var menuItem = new MenuItem
{
Header = command.Header,
Icon = new Image
{
Source = ILIconConverter.GetBitmapImage(command.GetIcon(ilItem)),
Stretch = Stretch.Fill,
Width = 16,
Height = 16
},
IsEnabled = command.CanExecute(ilItem),
FontWeight = command.IsDefault(ilItem)
? FontWeights.Bold
: FontWeights.Normal
};
menuItem.Click += (sender, args) => command.Execute(ilItem);
menu.Items.Add(menuItem);
}
}
if (menu.Items.Count > 0 &&
menu.Items[menu.Items.Count - 1] is Separator)
{
menu.Items.RemoveAt(menu.Items.Count - 1);
}
if (menu.Items.Count == 0)
{
menu.Items.Add(new MenuItem {
Header = "(no commands)", IsEnabled = false
});
}
return(menu);
}
public TreeState(TreeView view)
{
_selectedItem = (ILItem)view.SelectedItem;
foreach (var _item in view.Items)
{
Save((ILItem)_item);
}
}
static void DoubleClick(ILItem ilItem)
{
if (ilItem == null)
{
return;
}
foreach (var command in ILItem.Commands)
{
if (command != null &&
command.CanShow(ilItem) &&
command.IsDefault(ilItem) &&
command.CanExecute(ilItem))
{
command.Execute(ilItem);
return;
}
}
}
public virtual bool CanExecute(ILItem item)
{
return(CanShow(item));
}
public virtual bool CanShow(ILItem item)
{
return(true);
}
public virtual bool IsDefault(ILItem item)
{
return(false);
}
public override void Execute(ILItem item)
{
var file = (IFile)item;
Process.Start("explorer.exe", (Directory.Exists(file.FullName) ? null : "/select,") + file.FullName.QuoteSpace());
}
public override bool CanExecute(ILItem item)
{
var file = (IFile)item;
return(Directory.Exists(file.FullName) || File.Exists(file.FullName));
}
public override bool IsDefault(ILItem item)
{
return(item.GetVisibleChildCount() == 0);
}
public override void Execute(ILItem item)
{
var file = (IFile)item;
Process.Start("rundll32.exe", "shell32.dll, OpenAs_RunDLL " + file.FullName.QuoteSpace());
}
public override bool CanShow(ILItem item)
{
return(PlatformDetection.IsWindows && item is IFile && !(item is FolderBase));
}
public override ILIcon GetIcon(ILItem item)
{
return(item.Icon);
}
public abstract void Execute(ILItem item);
public virtual ILIcon GetIcon(ILItem item)
{
return(0);
}
public override ILIcon GetIcon(ILItem item)
{
return(ILIcon.FolderOpen);
}
public override bool CanShow(ILItem item)
{
return(PlatformDetection.IsWindows && item is IFile);
}
public override void Execute(ILItem item)
{
var file = (IFile)item;
Clipboard.SetText(file.FullName);
}
