public EditorNavigationMargin(IWpfTextView wpfTextView, IEnumerable<IEditorNavigationSource> sources, IEditorNavigationTypeRegistryService editorNavigationTypeRegistryService)
{
Contract.Requires<ArgumentNullException>(wpfTextView != null, "wpfTextView");
Contract.Requires<ArgumentNullException>(sources != null, "sources");
Contract.Requires<ArgumentNullException>(editorNavigationTypeRegistryService != null, "editorNavigationTypeRegistryService");
this._wpfTextView = wpfTextView;
this._sources = sources;
this._editorNavigationTypeRegistryService = editorNavigationTypeRegistryService;
_navigationControls =
this._sources
.SelectMany(source => source.GetNavigationTypes())
.Distinct()
//.OrderBy(...)
.Select(type => Tuple.Create(type, default(EditorNavigationComboBox)))
.ToArray();
if (this._navigationControls.Length == 0)
{
this._container =
new UniformGrid()
{
Visibility = Visibility.Collapsed
};
return;
}
this._container = new UniformGrid()
{
Columns = _navigationControls.Length,
Rows = 1
};
_navigationControls = Array.ConvertAll(_navigationControls,
pair =>
{
EditorNavigationComboBox comboBox =
new EditorNavigationComboBox()
{
Cursor = Cursors.Arrow,
ToolTip = new ToolTip()
{
Content = pair.Item1.Definition.DisplayName
}
};
comboBox.DropDownOpened += OnDropDownOpened;
comboBox.SelectionChanged += OnSelectionChanged;
return Tuple.Create(pair.Item1, comboBox);
});
foreach (var controlPair in _navigationControls)
{
this._container.Children.Add(controlPair.Item2);
}
this._wpfTextView.Caret.PositionChanged += OnCaretPositionChanged;
foreach (var source in this._sources)
{
source.NavigationTargetsChanged += WeakEvents.AsWeak(OnNavigationTargetsChanged, eh => source.NavigationTargetsChanged -= eh);
UpdateNavigationTargets(source);
}
}
private bool ComboBoxFilter(IEditorNavigationType navigationType, EditorNavigationComboBox comboBox, IEditorNavigationTarget target)
{
if (navigationType == null || comboBox == null || target == null)
return true;
if (!navigationType.Definition.EnclosingTypes.Any())
return true;
IEditorNavigationTarget owner;
if (!_owners.TryGetValue(target, out owner))
return true;
return _navigationControls.Select(i => i.Item2.SelectedItem).OfType<IEditorNavigationTarget>().Contains(owner);
}
