protected void OnDragDrop(object sender, DragEventArgs e)
{
Point p = _textArea.PointToClient(new Point(e.X, e.Y));
if (e.Data.GetDataPresent(typeof(string)))
{
_textArea.BeginUpdate();
_textArea.Document.UndoStack.StartUndoGroup();
try
{
int offset = _textArea.Caret.Offset;
if (_textArea.IsReadOnly(offset))
{
// prevent dragging text into readonly section
return;
}
//TODO2 drag/drop - all this:
//if (e.Data.GetDataPresent(typeof(Selection)))
//{
// Selection sel = (Selection)e.Data.GetData(typeof(Selection));
// if (sel.ContainsPosition(textArea.Caret.Position))
// {
// return;
// }
// if (GetDragDropEffect(e) == DragDropEffects.Move)
// {
// if (SelectionManager.SelectionIsReadOnly(textArea.Document, sel))
// {
// // prevent dragging text out of readonly section
// return;
// }
// int len = sel.Length;
// textArea.Document.Remove(sel.StartOffset, len);
// if (sel.StartOffset < offset)
// {
// offset -= len;
// }
// }
//}
_textArea.SelectionManager.ClearSelection();
InsertString(offset, (string)e.Data.GetData(typeof(string)));
_textArea.Document.RequestUpdate(new TextAreaUpdate(TextAreaUpdateType.WholeTextArea));
}
finally
{
_textArea.Document.UndoStack.EndUndoGroup();
_textArea.EndUpdate();
}
}
}
protected void OnDragDrop(object sender, DragEventArgs e)
{
if (e.Data.GetDataPresent(typeof(string)))
{
textArea.BeginUpdate();
textArea.Document.UndoStack.StartUndoGroup();
try
{
int offset = textArea.Caret.Offset;
if (textArea.IsReadOnly(offset))
{
// prevent dragging text into readonly section
return;
}
if (e.Data.GetDataPresent(typeof(DefaultSelection)))
{
ISelection sel = (ISelection)e.Data.GetData(typeof(DefaultSelection));
if (sel.ContainsPosition(textArea.Caret.Position))
{
return;
}
if (GetDragDropEffect(e) == DragDropEffects.Move)
{
if (SelectionManager.SelectionIsReadOnly(textArea.Document, sel))
{
// prevent dragging text out of readonly section
return;
}
int len = sel.Length;
textArea.Document.Remove(sel.Offset, len);
if (sel.Offset < offset)
{
offset -= len;
}
}
}
textArea.SelectionManager.ClearSelection();
InsertString(offset, (string)e.Data.GetData(typeof(string)));
textArea.Document.RequestUpdate(new TextAreaUpdate(TextAreaUpdateType.WholeTextArea));
}
finally
{
textArea.Document.UndoStack.EndUndoGroup();
textArea.EndUpdate();
}
}
}
public void Paste(object sender, EventArgs e)
{
if (!textArea.EnableCutOrPaste)
{
return;
}
// Clipboard.GetDataObject may throw an exception...
for (int i = 0;; i++)
{
try {
IDataObject data = Clipboard.GetDataObject();
if (data == null)
{
return;
}
bool fullLine = data.GetDataPresent(LineSelectedType);
if (data.GetDataPresent(DataFormats.UnicodeText))
{
string text = (string)data.GetData(DataFormats.UnicodeText);
// we got NullReferenceExceptions here, apparently the clipboard can contain null strings
if (!string.IsNullOrEmpty(text))
{
textArea.Document.UndoStack.StartUndoGroup();
try {
if (textArea.SelectionManager.HasSomethingSelected)
{
textArea.Caret.Position = textArea.SelectionManager.SelectionCollection[0].StartPosition;
textArea.SelectionManager.RemoveSelectedText();
}
if (fullLine)
{
int col = textArea.Caret.Column;
textArea.Caret.Column = 0;
if (!textArea.IsReadOnly(textArea.Caret.Offset))
{
textArea.InsertString(text);
}
textArea.Caret.Column = col;
}
else
{
// textArea.EnableCutOrPaste already checked readonly for this case
textArea.InsertString(text);
}
} finally {
textArea.Document.UndoStack.EndUndoGroup();
}
}
}
return;
} catch (ExternalException) {
// GetDataObject does not provide RetryTimes parameter
if (i > 5)
{
throw;
}
}
}
}
protected void OnDragDrop(object sender, DragEventArgs e)
{
if (!IsSupportedData(e.Data))
{
return;
}
textArea.BeginUpdate();
textArea.Document.UndoStack.StartUndoGroup();
try
{
var offset = textArea.Caret.Offset;
if (textArea.IsReadOnly(offset))
{
return;
}
try
{
if (e.Data.GetDataPresent(typeof(DefaultSelection)))
{
var sel = (ISelection)e.Data.GetData(typeof(DefaultSelection));
if (sel.ContainsPosition(textArea.Caret.Position))
{
return;
}
if (GetDragDropEffect(e) == DragDropEffects.Move)
{
if (SelectionManager.SelectionIsReadOnly(textArea.Document, sel))
{
return;
}
var len = sel.Length;
textArea.Document.Remove(sel.Offset, len);
if (sel.Offset < offset)
{
offset -= len;
}
}
}
}
catch (System.InvalidCastException)
{
/*
* If GetDataPresent(typeof(DefaultSelection)) threw this
* exception, then it's an interprocess DefaultSelection
* COM object that is not serializable! In general,
* GetDataPresent(typeof(...)) throws InvalidCastException
* for drags and drops from other GitExt processes (maybe
* we need to make the data objects [Serializable]?). We
* can get around this exception by doing
* GetDataPresent(String s) [using the string of the type
* name seems to work fine!] Since it is interprocess
* data, just get the string data from it - special
* handling logic in try {} is only valid for selections
* within the current process's text editor!
*/
}
textArea.SelectionManager.ClearSelection();
InsertString(offset, (string)e.Data.GetData("System.String"));
textArea.Document.RequestUpdate(new TextAreaUpdate(TextAreaUpdateType.WholeTextArea));
}
finally
{
textArea.Document.UndoStack.EndUndoGroup();
textArea.EndUpdate();
}
}
