/// <summary>
/// Navigates backward.
/// </summary>
public void NavigateBackward()
{
// Check if navigation is unlocked
if (_navigationUnlocked && _navigationUndo.Count > 0)
{
// Pop node
ContentTreeNode node = _navigationUndo.Pop();
// Lock navigation
_navigationUnlocked = false;
// Add to Redo list
_navigationRedo.Push(SelectedNode);
// Select node
RefreshView(node);
_tree.Select(node);
node.ExpandAllParents();
// Set valid sizes for stacks
//RedoList.SetSize(32);
//UndoList.SetSize(32);
// Update search
UpdateItemsSearch();
// Unlock navigation
_navigationUnlocked = true;
// Update UI
UpdateUI();
_view.SelectFirstItem();
}
}
private void Navigate(ContentTreeNode source, ContentTreeNode target)
{
if (target == null)
{
target = _root;
}
// Check if can do this action
if (_navigationUnlocked && source != target)
{
// Lock navigation
_navigationUnlocked = false;
// Check if already added to the Undo on the top
if (source != null && (_navigationUndo.Count == 0 || _navigationUndo.Peek() != source))
{
// Add to Undo list
_navigationUndo.Push(source);
}
// Show folder contents and select tree node
RefreshView(target);
_tree.Select(target);
target.ExpandAllParents();
// Clear redo list
_navigationRedo.Clear();
// Set valid sizes for stacks
//RedoList.SetSize(32);
//UndoList.SetSize(32);
// Update search
UpdateItemsSearch();
// Unlock navigation
_navigationUnlocked = true;
// Update UI
UpdateUI();
_view.SelectFirstItem();
}
}
