// convert a range given by TextPointers to a UIA TextRange
// (helper method for raising ActiveTextPositionChanged event)
internal ITextRangeProvider TextRangeFromTextPointers(ITextPointer rangeStart, ITextPointer rangeEnd)
{
// special case for the entire range
if (rangeStart == null && rangeEnd == null)
{
return(null);
}
// map null into the appropriate endpoint
rangeStart = rangeStart ?? _textContainer.Start;
rangeEnd = rangeEnd ?? _textContainer.End;
// if either pointer belongs to the wrong tree, return null (meaning "entire range")
if (rangeStart.TextContainer != _textContainer || rangeEnd.TextContainer != _textContainer)
{
return(null);
}
// swap the pointers, if necessary
if (rangeStart.CompareTo(rangeEnd) > 0)
{
ITextPointer temp = rangeStart;
rangeStart = rangeEnd;
rangeEnd = rangeStart;
}
// return the resulting range, wrapped so that it's ready for use by UIA
ITextRangeProvider textRange = new TextRangeAdaptor(this, rangeStart, rangeEnd, _textPeer);
return(TextRangeProviderWrapper.WrapArgument(textRange, _textPeer));
}
private object FindText(object arg)
{
object[] args = (object[])arg;
string text = (string)args[0];
bool backward = (bool)args[1];
bool ignoreCase = (bool)args[2];
return(TextRangeProviderWrapper.WrapArgument(_iface.FindText(text, backward, ignoreCase), _peer));
}
private object FindAttribute(object arg)
{
object[] args = (object[])arg;
int attribute = (int)args[0];
object val = args[1];
bool backward = (bool)args[2];
return(TextRangeProviderWrapper.WrapArgument(_iface.FindAttribute(attribute, val, backward), _peer));
}
private object CompareEndpoints(object arg)
{
object[] args = (object[])arg;
TextPatternRangeEndpoint endpoint = (TextPatternRangeEndpoint)args[0];
ITextRangeProvider targetRange = (ITextRangeProvider)args[1];
TextPatternRangeEndpoint targetEndpoint = (TextPatternRangeEndpoint)args[2];
return(_iface.CompareEndpoints(endpoint, TextRangeProviderWrapper.UnwrapArgument(targetRange), targetEndpoint));
}
private object MoveEndpointByRange(object arg)
{
object[] args = (object[])arg;
TextPatternRangeEndpoint endpoint = (TextPatternRangeEndpoint)args[0];
ITextRangeProvider targetRange = (ITextRangeProvider)args[1];
TextPatternRangeEndpoint targetEndpoint = (TextPatternRangeEndpoint)args[2];
_iface.MoveEndpointByRange(endpoint, TextRangeProviderWrapper.UnwrapArgument(targetRange), targetEndpoint);
return(null);
}
private object GetDocumentRange(object unused)
{
return(TextRangeProviderWrapper.WrapArgument(_iface.DocumentRange, _peer));
}
private object RangeFromPoint(object arg)
{
Point screenLocation = (Point)arg;
return(TextRangeProviderWrapper.WrapArgument(_iface.RangeFromPoint(screenLocation), _peer));
}
private object RangeFromChild(object arg)
{
IRawElementProviderSimple childElement = (IRawElementProviderSimple)arg;
return(TextRangeProviderWrapper.WrapArgument(_iface.RangeFromChild(childElement), _peer));
}
private object GetVisibleRanges(object unused)
{
return(TextRangeProviderWrapper.WrapArgument(_iface.GetVisibleRanges(), _peer));
}
//------------------------------------------------------
//
// Private Methods
//
//------------------------------------------------------
#region Private Methods
private object GetSelection(object unused)
{
return(TextRangeProviderWrapper.WrapArgument(_iface.GetSelection(), _peer));
}
private object Compare(object arg)
{
ITextRangeProvider range = (ITextRangeProvider)arg;
return(_iface.Compare(TextRangeProviderWrapper.UnwrapArgument(range)));
}
//------------------------------------------------------
//
// Private Methods
//
//------------------------------------------------------
#region Private Methods
private object Clone(object unused)
{
return(TextRangeProviderWrapper.WrapArgument(_iface.Clone(), _peer));
}