/// <inheritdoc/>
public override bool UIKeyPressed(KeyInfo key)
{
if (key == null) throw new ArgumentNullException("key");
switch (key.VirtualKeyCode)
{
case KeyCode.LeftArrow:
{
if (!key.Is() && !key.IsAlt() || Far.Api.CommandLine.Length > 0)
break;
FarFile file = CurrentFile;
if (file == null)
break;
TreeFile node = (TreeFile)file;
if (node._State == 1)
{
// reset
if (key.IsAlt())
{
node.ChildFiles.Clear();
node._State = 0;
UpdateRedraw(false);
return true;
}
// collapse
OpenFile(file);
}
else if (node.Parent != null)
{
PostFile(node.Parent);
Redraw();
}
return true;
}
case KeyCode.RightArrow:
{
if (!key.Is() && !key.IsAlt() || Far.Api.CommandLine.Length > 0)
break;
FarFile file = CurrentFile;
if (file == null)
break;
TreeFile node = (TreeFile)file;
if (node != null && node._State != 1 && node.IsNode)
{
// reset
if (key.IsAlt())
{
node.ChildFiles.Clear();
node._State = 0;
}
// open
OpenFile(file);
}
else
{
// go to next
Redraw(CurrentIndex + 1, -1);
}
return true;
}
}
// base
return base.UIKeyPressed(key);
}
