void ToggleCodeCommentWithBlockComments()
{
var blockStarts = TextEditorFactory.GetSyntaxProperties(textEditor.MimeType, "BlockCommentStart");
var blockEnds = TextEditorFactory.GetSyntaxProperties(textEditor.MimeType, "BlockCommentEnd");
if (blockStarts == null || blockEnds == null || blockStarts.Length == 0 || blockEnds.Length == 0)
{
return;
}
string blockStart = blockStarts[0];
string blockEnd = blockEnds[0];
using (var undo = textEditor.OpenUndoGroup()) {
IDocumentLine startLine;
IDocumentLine endLine;
if (textEditor.IsSomethingSelected)
{
startLine = textEditor.GetLineByOffset(textEditor.SelectionRange.Offset);
endLine = textEditor.GetLineByOffset(textEditor.SelectionRange.EndOffset);
// If selection ends at begining of line... This is visible as previous line
// is selected, hence we want to select previous line Bug 26287
if (endLine.Offset == textEditor.SelectionRange.EndOffset)
{
endLine = endLine.PreviousLine;
}
}
else
{
startLine = endLine = textEditor.GetLine(textEditor.CaretLine);
}
string startLineText = textEditor.GetTextAt(startLine.Offset, startLine.Length);
string endLineText = textEditor.GetTextAt(endLine.Offset, endLine.Length);
if (startLineText.StartsWith(blockStart, StringComparison.Ordinal) && endLineText.EndsWith(blockEnd, StringComparison.Ordinal))
{
textEditor.RemoveText(endLine.Offset + endLine.Length - blockEnd.Length, blockEnd.Length);
textEditor.RemoveText(startLine.Offset, blockStart.Length);
if (textEditor.IsSomethingSelected)
{
textEditor.SelectionAnchorOffset -= blockEnd.Length;
}
}
else
{
textEditor.InsertText(endLine.Offset + endLine.Length, blockEnd);
textEditor.InsertText(startLine.Offset, blockStart);
if (textEditor.IsSomethingSelected)
{
textEditor.SelectionAnchorOffset += blockEnd.Length;
}
}
}
}
bool TryGetLineCommentTag(out string commentTag)
{
var lineComments = TextEditorFactory.GetSyntaxProperties(textEditor.MimeType, "LineComment");
if (lineComments == null || lineComments.Length == 0)
{
commentTag = null;
return(false);
}
commentTag = lineComments [0];
return(true);
}
void OnUpdateToggleComment(CommandInfo info)
{
var lineComments = TextEditorFactory.GetSyntaxProperties(textEditor.MimeType, "LineComment");
if (lineComments != null && lineComments.Length > 0)
{
info.Visible = true;
return;
}
var blockStarts = TextEditorFactory.GetSyntaxProperties(textEditor.MimeType, "BlockCommentStart");
var blockEnds = TextEditorFactory.GetSyntaxProperties(textEditor.MimeType, "BlockCommentEnd");
info.Visible = blockStarts != null && blockStarts.Length > 0 && blockEnds != null && blockEnds.Length > 0;
}
