private void TabSelection(bool isShiftDown)
{
ITextSelection selection = CodeEditor.Document.Selection;
ITextRange range = selection.GetClone();
int selectionStart = range.StartPosition;
range.StartOf(TextRangeUnit.Line, false);
int lineStart = range.StartPosition;
int charactersFromLineStart = selectionStart - lineStart;
int charactersOffsetFromTabSize = charactersFromLineStart % ViewModel.TabSize;
if (isShiftDown)
{
int charactersToDelete = charactersOffsetFromTabSize == 0 ? ViewModel.TabSize : charactersOffsetFromTabSize;
ITextRange deletionRange = selection.GetClone();
if (deletionRange.StartPosition > lineStart)
{
deletionRange.MoveStart(TextRangeUnit.Character, -1);
int safeCharactersToDelete;
for (safeCharactersToDelete = 0; safeCharactersToDelete < charactersToDelete && deletionRange.StartPosition >= lineStart && char.IsWhiteSpace(deletionRange.Character); safeCharactersToDelete++)
{
deletionRange.MoveStart(TextRangeUnit.Character, -1);
}
CodeEditor.Document.GetRange(selection.StartPosition, selection.StartPosition).Delete(TextRangeUnit.Character, -safeCharactersToDelete);
}
}
else
{
int charactersToAdd = ViewModel.TabSize - charactersOffsetFromTabSize;
string tabString = new string(' ', charactersToAdd);
selection.TypeText(tabString);
}
}
private void HandleTap(TappedRoutedEventArgs e)
{
Point tappedPoint = e.GetPosition(this);
ITextRange textRange = this.Document.GetRangeFromPoint(tappedPoint, PointOptions.ClientCoordinates);
textRange.StartOf(TextRangeUnit.Link, true);
if (textRange.Character != '\r' && textRange.CharacterFormat.Underline == UnderlineType.Single)
{
string content;
this.Document.GetText(TextGetOptions.None, out content);
textRange.StartPosition--;
textRange.EndPosition++;
while (!(textRange.Text.StartsWith(" ") || textRange.Text.StartsWith("\r")) && textRange.StartPosition > 0)
{
textRange.StartPosition--;
}
while (!(textRange.Text.EndsWith(" ") || textRange.Text.EndsWith("\r")) && textRange.EndPosition < content.Length)
{
textRange.EndPosition++;
}
this.link = textRange.Text;
if (!string.IsNullOrWhiteSpace(this.link))
{
this.link = this.link.Trim(' ');
this.link = this.link.Trim('\r');
if (!this.link.StartsWith("http://", StringComparison.OrdinalIgnoreCase) && !this.link.StartsWith("https://", StringComparison.OrdinalIgnoreCase))
{
this.link = "http://" + this.link;
}
if (this.openLinkPopup == null)
{
this.openLinkPopup = new Popup
{
IsLightDismissEnabled = true,
Child = new HyperlinkPopupContent()
};
}
this.openLinkPopup.IsOpen = false;
((HyperlinkPopupContent)this.openLinkPopup.Child).Hyperlink = this.link;
var frame = Window.Current.Content as Frame;
if (frame != null && frame.Content is Page)
{
var page = frame.Content as Page;
var position = e.GetPosition(page);
this.openLinkPopup.VerticalOffset = position.Y;
if (ResponsiveHelper.IsUsingSmallLayout())
{
this.openLinkPopup.HorizontalOffset = 15;
((HyperlinkPopupContent)this.openLinkPopup.Child).MaxWidth = 292;
}
else
{
this.openLinkPopup.HorizontalOffset = position.X;
}
}
this.openLinkPopup.IsOpen = true;
}
}
}