/// <summary>
/// Builds the tree for MenuItem tree view model
/// </summary>
/// <param name="node"></param>
/// <param name="menuItemViewModel"></param>
void BuildTreeViewModel(ISyntaxEntity node, MenuItemViewModel menuItemViewModel)
{
MenuItemViewModel item = new MenuItemViewModel()
{
DisplayText = node.DisplayText(),
SpokenText = node.SpokenText(),
Name = node.DisplayText(),
LineNumber = node.Location.StartLineNumber + Constants.GoToLineOffsite,
Children = new ObservableCollection <MenuItemViewModel>(),
IsExpanded = (node is Block || node is FunctionDefinition)?false:true,
ImageSource = UIConstants.GetImageSourceFromKind(node)
};
if (null == menuItemViewModel)
{
treeRootViewModel = item;
}
else
{
menuItemViewModel.Children.Add(item);
}
menuItemViewModel = item;
if (null == node.Children)
{
return;
}
foreach (var child in node.Children)
{
if (child.Kind == SyntaxEntityKind.Function)
{
if (((child as FunctionDefinition).TypeOfFunction & functionTypesToDisplay) == 0)
{
continue;
}
}
BuildTreeViewModel(child, menuItemViewModel);
}
}
public void SetListView(IEnumerable <ISyntaxEntity> entities, string label, bool focusOnFirst = true)
{
//Cleaning UI
listView.Visibility = Visibility.Visible;
treeView.Visibility = Visibility.Collapsed;
ListItems.Clear();
var listItems = entities.Select(entity =>
{
return(new MenuItemViewModel()
{
DisplayText = entity.DisplayText(),
SpokenText = entity.SpokenText(),
Name = entity.DisplayText(),
LineNumber = entity.Location.StartLineNumber + Constants.GoToLineOffsite,
Children = new ObservableCollection <MenuItemViewModel>(),
ImageSource = UIConstants.GetImageSourceFromKind(entity)
});
//return new MenuItem(entity.CurrentCodeFile.Language.SpokenText(entity),
// entity.Location.StartLineNumber);
});
foreach (var item in listItems)
{
ListItems.Add(item);
}
listView.Focus();
/// Focus explanation:
/// The ListViewItems are not generated immediately, because of that we can obtain the ListViewItem to shift focus.
/// Hence we call ListView.UpdateLayout() which pre-generates the ListViewItems.
/// Since there are only few tens of items expected in the list view, this is acceptable.
/// In case the list items will go to hundreds or thousands, this is not efficient way, we need to use the
/// status chaged event of the ItemContainerGenerator to get the ListViewItem.
if (true == focusOnFirst)
{
listView.SelectedItem = listView.Items[0];
listView.UpdateLayout();
var item = (ListViewItem)listView.ItemContainerGenerator.ContainerFromItem(listView.Items[0]);
if (null != item)
{
item.Focus();
}
}
else
{
listView.SelectedItem = listView.Items[listItems.Count() - 1];
listView.SelectedIndex = listItems.Count() - 1;
listView.UpdateLayout();
var item = (ListViewItem)listView.ItemContainerGenerator.ContainerFromItem(listView.Items[listItems.Count() - 1]);
if (null != item)
{
item.Focus();
}
}
isTreeViewActive = false;
ResizeControl();
}