/// <summary>Navigates to a specified directory.</summary>
/// <param name="directory">The directory.</param>
private void NavigateTo(string directory)
{
if (string.IsNullOrEmpty(directory))
throw new ArgumentNullException("directory");
FileView fileView = new FileView(directory);
string currentDirectory = _oldDirectory;
_oldDirectory = fileView.FullName;
if (!_drivesAdded)
{
_drivesAdded = true;
foreach (DriveInfo drive in DriveInfo.GetDrives())
{
DirectoryTreeNode node = new DirectoryTreeNode(0);
node.Expanding += treeView1_BeforeExpand;
node.Collapsing += treeView1_BeforeCollapse;
treeView1.Items.Add(node);
node.Directory = drive.RootDirectory.FullName;
}
}
if (!fileView.IsDirectory)
return;
if (string.Compare(currentDirectory, fileView.FullName, true) == 0)
return;
List<string> nodeNames = new List<string>();
nodeNames.Add(fileView.FullName);
string upLevel = Path.GetDirectoryName(fileView.FullName);
while (!string.IsNullOrEmpty(upLevel))
{
nodeNames.Add(upLevel);
upLevel = Path.GetDirectoryName(upLevel);
}
ItemCollection nodes = treeView1.Items;
TreeViewItem parentNode = null;
TreeViewBeginUpdate();
_suppressEventHandling = true;
try
{
for (int i = nodeNames.Count - 1; i >= 0; i--)
{
parentNode = FindNode(parentNode, nodes, nodeNames[i]);
nodes = parentNode.Items;
}
if (parentNode != null)
{
UpdateNodeChildren((DirectoryTreeNode)parentNode);
parentNode.IsSelected = true;
parentNode.IsExpanded = true;
parentNode.BringIntoView();
}
}
finally
{
_suppressEventHandling = false;
TreeViewEndUpdate();
}
}
private void _viewModel_EnhancedPropertyChanged(object sender, EnhancedPropertyChangedEventArgs<IDirectoryController> e)
{
if (e.IsProperty(p => p.CurrentDirectory))
{
string directory = _viewModel.CurrentDirectory;
if (Directory.Exists(directory))
{
ButtonGrid.Children.Clear();
ButtonGrid.ColumnDefinitions.Clear();
List<UIElement> buttons = new List<UIElement>();
string curdir = directory;
while (Directory.Exists(curdir))
{
if (curdir.EndsWith(@"\") && curdir.Length > 3)
curdir = curdir.Substring(0, curdir.Length - 1);
MenuItem menuItem;
Menu menu;
GetMenuItem(curdir, directory, out menuItem, out menu);
if (menu != null)
{
buttons.Add(menu);
}
Button dirButton = new Button();
dirButton.Content =
new TextBlock
{
Text = curdir.Length <= 3 ? DriveTypeHelper.GetDescription(new DriveInfo(curdir.Substring(0, 2))) : Path.GetFileName(curdir),
Margin = new Thickness(2, 0, 2, 0)
};
dirButton.VerticalAlignment = VerticalAlignment.Stretch;
dirButton.VerticalContentAlignment = VerticalAlignment.Center;
dirButton.Tag = curdir;
dirButton.Click += (s, be) => { _viewModel.CurrentDirectory = (string)((Button)s).Tag; };
dirButton.Style = (Style)Application.Current.Resources["DirectoryButton"];
buttons.Add(dirButton);
if (menuItem != null)
{
dirButton.MouseEnter += delegate
{
if (!menuItem.IsSubmenuOpen)
{
VisualStateManager.GoToState(menuItem, "MouseOver", true);
}
};
menuItem.MouseEnter += delegate
{
if (!menuItem.IsSubmenuOpen)
{
VisualStateManager.GoToState(dirButton, "MenuMouseOver", true);
VisualStateManager.GoToState(menuItem, "MouseOver", true);
}
};
dirButton.MouseLeave += delegate
{
if (!menuItem.IsMouseOver && !menuItem.IsSubmenuOpen)
{
VisualStateManager.GoToState(menuItem, "Normal", true);
}
};
menuItem.MouseLeave += delegate
{
if (!dirButton.IsMouseOver && !menuItem.IsSubmenuOpen)
{
VisualStateManager.GoToState(dirButton, "Normal", true);
VisualStateManager.GoToState(menuItem, "Normal", true);
}
};
menuItem.SubmenuOpened += delegate
{
VisualStateManager.GoToState(dirButton, "Pressed", true);
VisualStateManager.GoToState(menuItem, "Pressed", true);
};
menuItem.SubmenuClosed += delegate
{
if (!dirButton.IsMouseOver && !menuItem.IsMouseOver)
{
VisualStateManager.GoToState(dirButton, "Normal", true);
VisualStateManager.GoToState(menuItem, "Normal", true);
}
else
{
VisualStateManager.GoToState(dirButton, "MouseOver", true);
VisualStateManager.GoToState(menuItem, "MouseOver", true);
}
};
}
curdir = Path.GetDirectoryName(curdir);
}
MenuItem rootMenuItem;
Menu rootMenu;
GetMenuItem(curdir, directory, out rootMenuItem, out rootMenu);
rootMenuItem.MouseEnter += delegate
{
if (!rootMenuItem.IsSubmenuOpen)
VisualStateManager.GoToState(rootMenuItem, "MouseOver", true);
};
rootMenuItem.MouseLeave += delegate
{
if (!rootMenuItem.IsSubmenuOpen)
{
VisualStateManager.GoToState(rootMenuItem, "Normal", true);
}
};
rootMenuItem.SubmenuOpened += delegate
{
VisualStateManager.GoToState(rootMenuItem, "Pressed", true);
};
rootMenuItem.SubmenuClosed += delegate
{
if (!rootMenuItem.IsMouseOver)
{
VisualStateManager.GoToState(rootMenuItem, "Normal", true);
}
else
{
VisualStateManager.GoToState(rootMenuItem, "MouseOver", true);
}
};
buttons.Add(rootMenu);
FileView currentFileView = new FileView(directory);
buttons.Add(new Image { Source = currentFileView.ImageSource, Margin = new Thickness(3, 3, 3, 3), VerticalAlignment = VerticalAlignment.Center });
for (int i = buttons.Count - 1, j = 0; i >= 0; i--, j++)
{
ButtonGrid.ColumnDefinitions.Add(new ColumnDefinition { Width = GridLength.Auto });
buttons[i].SetValue(Grid.ColumnProperty, j);
ButtonGrid.Children.Add(buttons[i]);
}
}
}
}