public static void ReplaceSelection(this IEnumerable <string> Selections, EmptyLineAction Action, int[] EmptyLinePositions, NewlineType NewlineType, bool WasNewline)
{
ThreadHelper.ThrowIfNotOnUIThread();
string newlineStr = NewlineType.AsString();
if (Action == EmptyLineAction.DependsOnSettings)
{
Action = VSPackage.Loader.Settings.EmptyLineAction;
}
DTE dte = ServiceProvider?.GetService(typeof(DTE)) as DTE;
if (dte is null)
{
return;
}
switch (Action)
{
case EmptyLineAction.AsMask:
int i = 0;
Selections = Selections.SelectMany(x => {
List <string> result = new List <string>();
while (EmptyLinePositions.Contains(i))
{
result.Add(string.Empty);
++i;
}
result.Add(x);
++i;
return(result);
});
break;
default:
break;
}
string text = string.Join(newlineStr, Selections) + (WasNewline ? newlineStr : string.Empty);
try
{
// `((EnvDTE.TextSelection)dte.ActiveDocument.Selection).Text = value` is really slow!
// So I use this small 'hack':
// Saving current clipboard state:
IDataObject obj = Clipboard.GetDataObject();
// Loading text to clipboard:
Clipboard.SetDataObject(new DataObject(DataFormats.UnicodeText, text), true);
//Clipboard.SetText(text); -- Throws when system clipboard's blocked by another process
// Pasting text from clipboard (and formatting it):
dte.ExecuteCommand("Edit.Paste");
// Now we return everything as it was)
Clipboard.SetDataObject(obj);
}
catch
{
((EnvDTE.TextSelection)dte.ActiveDocument.Selection).Text = text;
}
}
public static IEnumerable <string> GetSelection(EmptyLineAction Action, out int[] EmptyLinePositions, out NewlineType NewlineType, out bool WasNewline)
{
IVsTextManager2 textManager = ServiceProvider.GetService(typeof(SVsTextManager)) as IVsTextManager2;
Assumes.Present(textManager);
textManager.GetActiveView2(1, null, (uint)_VIEWFRAMETYPE.vftCodeWindow, out IVsTextView view);
view.GetSelectedText(out string selectedText);
NewlineType = selectedText.GetNewlineType();
string newlineStr = NewlineType.AsString();
WasNewline = selectedText.EndsWith(newlineStr);
IEnumerable <string> result = selectedText.Split(new[] { newlineStr }, StringSplitOptions.None);
int lastIndex = ((string[])result).Length - 1;
EmptyLinePositions = result.Select((x, i) => new { Line = x, Index = i }).Where(x => string.IsNullOrWhiteSpace(x.Line)).Select(x => x.Index).ToArray();
if (Action == EmptyLineAction.DependsOnSettings)
{
Action = VSPackage.Loader.Settings.EmptyLineAction;
}
result = Action == EmptyLineAction.AsLine ? result.Where((x, i) => !(string.IsNullOrEmpty(x) && i == lastIndex)) : result.Where(x => !string.IsNullOrWhiteSpace(x));
return(result);
}
