/// <summary>
/// Checks the dialog key to see if the incremental search
/// should be cancelled.
/// </summary>
/// <remarks>
/// If the user presses the escape or enter key then the
/// incremental search is aborted. If the user executes any
/// edit action via the keyboard the incremental search is aborted
/// and the edit action is allowed to execute.
/// </remarks>
bool TextAreaProcessDialogKey(Keys keys)
{
if (keys == Keys.Escape ||
keys == Keys.Enter)
{
StopIncrementalSearch();
return(true);
}
else if (keys == Keys.Back)
{
// Remove last search char and try search again.
int length = searchText.ToString().Length;
if (length > 0)
{
searchText.Remove(length - 1, 1);
// Run search back at original starting point.
startIndex = originalStartIndex;
passedEndOfDocument = false;
RunSearch();
return(true);
}
else
{
StopIncrementalSearch();
return(false);
}
}
else if (textEditor.IsEditAction(keys))
{
StopIncrementalSearch();
return(false);
}
return(false);
}