public void VsTextViewCreated(IVsTextView textViewAdapter)
{
IComponentModel componentModel = (IComponentModel)ServiceProvider.GlobalProvider.GetService(typeof(SComponentModel));
if (componentModel != null)
{
IOutliningManagerService outliningManagerService = componentModel.GetService <IOutliningManagerService>();
_editorAdaptersFactoryService = componentModel.GetService <IVsEditorAdaptersFactoryService>();
if (outliningManagerService != null)
{
if (textViewAdapter != null && _editorAdaptersFactoryService != null)
{
var textView = _editorAdaptersFactoryService.GetWpfTextView(textViewAdapter);
var snapshot = textView.TextSnapshot;
var snapshotSpan = new Microsoft.VisualStudio.Text.SnapshotSpan(snapshot, new Microsoft.VisualStudio.Text.Span(0, snapshot.Length));
_outliningManager = outliningManagerService.GetOutliningManager(textView);
var regions = _outliningManager.GetAllRegions(snapshotSpan);
foreach (var reg in regions)
{
_outliningManager.TryCollapse(reg);
}
}
}
}
}
/// <summary>
/// An event handler raised when a code item parent's expanded state has changed.
/// </summary>
/// <param name="sender">The sender of the event.</param>
/// <param name="eventArgs">The event arguments.</param>
private void OnCodeItemParentIsExpandedChanged(object sender, EventArgs eventArgs)
{
if (sender is ICodeItemParent codeItemParent)
{
var iCollapsible = FindCollapsibleFromCodeItemParent(codeItemParent);
if (iCollapsible != null)
{
if (codeItemParent.IsExpanded && iCollapsible.IsCollapsed)
{
_outliningManager.Expand(iCollapsible as ICollapsed);
}
else if (!codeItemParent.IsExpanded && !iCollapsible.IsCollapsed)
{
_outliningManager.TryCollapse(iCollapsible);
}
}
}
}
/// <summary>
/// An event handler raised when a code item parent's expanded state has changed.
/// </summary>
/// <param name="sender">The sender of the event.</param>
/// <param name="eventArgs">The event arguments.</param>
private static void OnIsExpandedChanged(object sender, EventArgs eventArgs)
{
var item = sender as IMembers;
if (item != null)
{
var iCollapsible = FindCollapsibleFromCodeItem((CodeItem)item, _manager, _textView);
if (iCollapsible != null)
{
if (item.IsExpanded && iCollapsible.IsCollapsed)
{
_manager.Expand(iCollapsible as ICollapsed);
}
else if (!item.IsExpanded && !iCollapsible.IsCollapsed)
{
_manager.TryCollapse(iCollapsible);
}
}
}
}
private void ToggleCurrent()
{
var caretPosition = _textView.Caret.Position.BufferPosition;
var snapshot = _textView.TextBuffer.CurrentSnapshot;
var span = new SnapshotSpan(snapshot, new Span(caretPosition, 0));
var regions = OutliningManager.GetAllRegions(span);
// Find innermost one
ICollapsible region = null;
int regionStart = 0;
int regionEnd = snapshot.Length;
foreach (ICollapsible c in regions)
{
int start = c.Extent.GetStartPoint(snapshot);
int end = c.Extent.GetEndPoint(snapshot);
if (start >= regionStart && end < regionEnd)
{
regionStart = start;
regionEnd = end;
region = c;
}
}
if (region != null)
{
if (region.IsCollapsed)
{
OutliningManager.Expand(region as ICollapsed);
}
else
{
OutliningManager.TryCollapse(region);
}
}
}
