public override bool TypeChar(UIViewItem info, int offset, char c)
{
if (c == ';')
{
info.RejustLineIndentation(offset);
return(true);
}
if (c == '}')
{
var indent_root = info.GetIndentRoot();
if (indent_root != null)
{
var element = indent_root.GetException(offset - 1);
var node = element as ABnfNodeElement;
if (node == null)
{
node = element.GetParent();
}
if (node != null)
{
var childs = node.GetChilds();
if (childs.Count > 0 && childs[0] is ABnfStringElement && childs[0].GetElementText() == "{")
{
if (info.CalcLineNumbers(childs[0].GetStart(), offset, out int line_start, out int line_end))
{
info.RejustMultiLineIndentation(line_start, line_end);
return(true);
}
}
}
}
}
return(false);
}
public virtual bool FormatViewContent(UIViewItem info)
{
if (info.GetLineCount() == 0)
{
return(true);
}
info.RejustMultiLineIndentation(0, info.GetLineCount() - 1);
return(true);
}
public int Exec(ref Guid pguidCmdGroup, uint nCmdID, uint nCmdexecopt, IntPtr pvaIn, IntPtr pvaOut)
{
bool handled = false;
int hresult = VSConstants.S_OK;
bool update_reference = false;
int paste_before = -1;
// 1. Pre-process
if (pguidCmdGroup == VSConstants.VSStd2K)
{
switch ((VSConstants.VSStd2KCmdID)nCmdID)
{
case VSConstants.VSStd2KCmdID.COMMENT_BLOCK:
{
var info = GetUIViewItem();
if (info != null)
{
handled = info.Comment(m_view, true);
}
}
break;
case VSConstants.VSStd2KCmdID.UNCOMMENT_BLOCK:
{
var info = GetUIViewItem();
if (info != null)
{
handled = info.Comment(m_view, false);
}
}
break;
case VSConstants.VSStd2KCmdID.AUTOCOMPLETE:
case VSConstants.VSStd2KCmdID.COMPLETEWORD:
// handled = StartSession();
break;
case VSConstants.VSStd2KCmdID.RETURN:
update_reference = true;
handled = Complete(false);
if (!handled)
{
handled = HandleStringPair();
}
break;
case VSConstants.VSStd2KCmdID.TAB:
handled = Cancel();
break;
case VSConstants.VSStd2KCmdID.CANCEL:
handled = Cancel();
break;
case VSConstants.VSStd2KCmdID.FORMATDOCUMENT:
{
var info = GetUIViewItem();
if (info != null)
{
info.FormatDocument();
handled = true;
}
}
break;
case VSConstants.VSStd2KCmdID.COMPILE:
{
var info = GetUIViewItem();
if (info != null)
{
info.CompileDocument();
handled = true;
}
}
break;
case VSConstants.VSStd2KCmdID.BACKSPACE:
case VSConstants.VSStd2KCmdID.DELETE:
{
if (m_view.Selection.IsEmpty)
{
var position = m_view.Caret.Position.BufferPosition.Position + 1;
if (position >= 0 && position < m_view.TextSnapshot.Length)
{
update_reference = m_view.TextSnapshot[position] == '\n';
}
}
else
{
var text = m_view.TextSnapshot.GetText(m_view.Selection.Start.Position, m_view.Selection.End.Position - m_view.Selection.Start.Position);
update_reference = text.IndexOf('\n') >= 0;
}
}
break;
}
}
else if (pguidCmdGroup == VSConstants.GUID_VSStandardCommandSet97)
{
switch ((VSConstants.VSStd97CmdID)nCmdID)
{
case VSConstants.VSStd97CmdID.Paste:
{
paste_before = m_view.Caret.Position.BufferPosition.Position;
}
break;
}
}
if (!handled)
{
hresult = Next.Exec(pguidCmdGroup, nCmdID, nCmdexecopt, pvaIn, pvaOut);
}
if (ErrorHandler.Succeeded(hresult))
{
UIViewItem info = null;
if (update_reference)
{
info = GetUIViewItem();
if (info != null)
{
info.UpdateReference();
}
}
if (pguidCmdGroup == VSConstants.VSStd2K)
{
switch ((VSConstants.VSStd2KCmdID)nCmdID)
{
case VSConstants.VSStd2KCmdID.TYPECHAR:
info = GetUIViewItem();
char c = GetTypeChar(pvaIn);
if (m_session == null)
{
if (c >= 'a' && c <= 'z' || c >= 'A' && c <= 'Z' ||
ALanguageCompletionSource.IsSpecialChar(c))
{
QueryCompletion(c);
}
}
else
{
if (c == ' ')
{
Cancel();
}
else if (ALanguageCompletionSource.IsSpecialChar(c))
{
Cancel();
QueryCompletion(c);
}
else
{
Filter();
}
}
if (info != null)
{
var position = m_view.Caret.Position.BufferPosition.Position;
var handle = false;
// 尝试填补配对字符
if (m_string_pair.TryGetValue(c, out string out_pair))
{
handle = info.PushAutoPair(position, c, out_pair);
}
if (m_view.Properties.TryGetProperty(nameof(ALanguageController), out ALanguageController controller))
{
controller.OnTextInput(position - 1);
}
if (!handle)
{
info.TypeChar(position, c);
}
}
break;
case VSConstants.VSStd2KCmdID.BACKSPACE:
{
if (m_view.Caret.Position.BufferPosition.Position == m_session_offset)
{
Cancel();
}
else
{
Filter();
}
}
break;
}
}
else if (pguidCmdGroup == VSConstants.GUID_VSStandardCommandSet97)
{
switch ((VSConstants.VSStd97CmdID)nCmdID)
{
case VSConstants.VSStd97CmdID.Paste:
{
if (info == null)
{
info = GetUIViewItem();
}
if (info != null && info.CalcLineNumbers(paste_before, m_view.Caret.Position.BufferPosition.Position, out int line_start, out int line_end))
{
info.RejustMultiLineIndentation(line_start, line_end);
}
}
break;
}
}
}
return(hresult);
}