internal bool Exec(EditCommand editCommand, out Action preAction, out Action postAction)
{
preAction = null;
postAction = null;
// If the KeyInput was already handled then pretend we handled it here
if (editCommand.HasKeyInput && _vimBufferCoordinator.IsDiscarded(editCommand.KeyInput))
{
return(true);
}
switch (editCommand.EditCommandKind)
{
case EditCommandKind.Undo:
// The user hit the undo button. Don't attempt to map anything here and instead just
// run a single Vim undo operation
_vimBuffer.UndoRedoOperations.Undo(1);
return(true);
case EditCommandKind.Redo:
// The user hit the redo button. Don't attempt to map anything here and instead just
// run a single Vim redo operation
_vimBuffer.UndoRedoOperations.Redo(1);
return(true);
case EditCommandKind.Paste:
return(Paste());
case EditCommandKind.GoToDefinition:
// The GoToDefinition command will often cause a selection to occur in the
// buffer. We don't want that to cause us to enter Visual Mode so clear it
// out. This command can cause the active document to switch if the target
// of the goto def is in another file. This file won't be registered as the
// active file yet so just clear out the active selections
List <ITextView> selected = null;
preAction = () =>
{
// Record which buffers have pre-existing selections.
selected = _textManager
.GetDocumentTextViews(DocumentLoad.RespectLazy)
.Where(x => !x.Selection.IsEmpty)
.ToList();
};
postAction = () =>
{
// Clear any new selections.
_textManager.GetDocumentTextViews(DocumentLoad.RespectLazy)
.Where(x => !x.Selection.IsEmpty && !selected.Contains(x))
.ForEach(x =>
{
// Move the caret to the beginning of the selection.
var startPoint = x.Selection.Start;
x.Selection.Clear();
x.Caret.MoveTo(startPoint);
});
};
return(false);
case EditCommandKind.Comment:
case EditCommandKind.Uncomment:
// The comment / uncomment command will often induce a selection on the
// editor even if there was no selection before the command was run (single line
// case).
if (_textView.Selection.IsEmpty)
{
postAction = () =>
{
_textView.Selection.Clear();
};
}
return(false);
case EditCommandKind.UserInput:
case EditCommandKind.VisualStudioCommand:
if (editCommand.HasKeyInput)
{
var keyInput = editCommand.KeyInput;
// Discard the input if it's been flagged by a previous QueryStatus
if (_vimBufferCoordinator.IsDiscarded(keyInput))
{
return(true);
}
// Try and process the command with the IVimBuffer
if (TryProcessWithBuffer(keyInput))
{
return(true);
}
// Discard any other unprocessed printable input in
// non-input modes. Without this, Visual Studio will
// see the command as unhandled and will try to handle
// it itself by inserting the character into the
// buffer.
if (editCommand.EditCommandKind == EditCommandKind.UserInput &&
CharUtil.IsPrintable(keyInput.Char) &&
(_vimBuffer.ModeKind == ModeKind.Normal || _vimBuffer.ModeKind.IsAnyVisual()))
{
_commonOperations.Beep();
return(true);
}
}
return(false);
default:
Debug.Assert(false);
return(false);
}
}
internal bool Exec(EditCommand editCommand, out Action preAction, out Action postAction)
{
preAction = null;
postAction = null;
// If the KeyInput was already handled then pretend we handled it
// here.
if (editCommand.HasKeyInput && _vimBufferCoordinator.IsDiscarded(editCommand.KeyInput))
{
return(true);
}
switch (editCommand.EditCommandKind)
{
case EditCommandKind.Undo:
// The user hit the undo button. Don't attempt to map
// anything here and instead just run a single Vim undo
// operation
_vimBuffer.UndoRedoOperations.Undo(1);
return(true);
case EditCommandKind.Redo:
// The user hit the redo button. Don't attempt to map
// anything here and instead just run a single Vim redo
// operation
_vimBuffer.UndoRedoOperations.Redo(1);
return(true);
case EditCommandKind.Paste:
return(Paste());
case EditCommandKind.GoToDefinition:
// The GoToDefinition command will often cause a selection
// to occur in the buffer.
{
var handler = new UnwantedSelectionHandler(_vimBuffer.Vim);
preAction = handler.PreAction;
postAction = handler.PostAction;
}
return(false);
case EditCommandKind.Comment:
case EditCommandKind.Uncomment:
// The comment / uncomment command will often induce a
// selection on the editor even if there was no selection
// before the command was run (single line case).
if (_textView.Selection.IsEmpty)
{
var handler = new UnwantedSelectionHandler(_vimBuffer.Vim);
postAction = () => handler.ClearSelection(_textView);
}
return(false);
case EditCommandKind.UserInput:
case EditCommandKind.VisualStudioCommand:
if (editCommand.HasKeyInput)
{
var keyInput = editCommand.KeyInput;
// Discard the input if it's been flagged by a previous
// QueryStatus.
if (_vimBufferCoordinator.IsDiscarded(keyInput))
{
return(true);
}
// Try and process the command with the IVimBuffer.
if (TryProcessWithBuffer(keyInput))
{
return(true);
}
// Discard any other unprocessed printable input in
// non-input modes. Without this, Visual Studio will
// see the command as unhandled and will try to handle
// it itself by inserting the character into the
// buffer.
if (editCommand.EditCommandKind == EditCommandKind.UserInput &&
CharUtil.IsPrintable(keyInput.Char) &&
(_vimBuffer.ModeKind == ModeKind.Normal || _vimBuffer.ModeKind.IsAnyVisual()))
{
_commonOperations.Beep();
return(true);
}
}
return(false);
default:
Debug.Assert(false);
return(false);
}
}