private static TimedTextElement CreateTimedTextElement(TimedTextElementBase element, RegionElement region)
{
var captionElement = element is SetElement
? (TimedTextElement)BuildCaptionAnimationElement(element)
: new CaptionElement();
var endTime = element.End.TotalSeconds >= TimeSpan.MaxValue.TotalSeconds
? TimeSpan.MaxValue
: TimeSpan.FromSeconds(element.End.TotalSeconds);
captionElement.End = endTime;
captionElement.Begin = TimeSpan.FromSeconds(element.Begin.TotalSeconds);
if (element is BrElement)
{
captionElement.CaptionElementType = TimedTextElementType.LineBreak;
}
else if (element is AnonymousSpanElement)
{
var span = element as AnonymousSpanElement;
captionElement.CaptionElementType = TimedTextElementType.Text;
captionElement.Content = HttpUtility.HtmlDecode(span.Text);
captionElement.Style = TimedTextStyleParser.MapStyle(element, region);
}
else if (!(element is SetElement))
{
captionElement.CaptionElementType = TimedTextElementType.Container;
captionElement.Style = TimedTextStyleParser.MapStyle(element, region);
}
return(captionElement);
}
private static TimedTextAnimation BuildCaptionAnimationElement(TimedTextElementBase element)
{
var propertyName = element.Attributes
.Where(i => TimedTextStyleParser.IsValidAnimationPropertyName(i.LocalName))
.Select(i => i.LocalName)
.FirstOrDefault();
return(!propertyName.IsNullOrWhiteSpace()
? new TimedTextAnimation
{
CaptionElementType = TimedTextElementType.Animation,
PropertyName = propertyName,
Style = TimedTextStyleParser.MapStyle(element, null)
}
: null);
}
private static CaptionRegion MapToCaptionRegion(RegionElement regionElement)
{
var endTime = regionElement.End.TotalSeconds >= TimeSpan.MaxValue.TotalSeconds
? TimeSpan.MaxValue
: TimeSpan.FromSeconds(regionElement.End.TotalSeconds);
var captionRegion = new CaptionRegion
{
Id = regionElement.Id,
Begin = TimeSpan.FromSeconds(regionElement.Begin.TotalSeconds),
End = endTime,
Style = TimedTextStyleParser.MapStyle(regionElement, null),
TunneledData = regionElement.Root.Images.ToDictionary(ie => ie.Key, ie => new TunneledData()
{
Data = ie.Value.Data, Encoding = ie.Value.Encoding, MimeType = ie.Value.ImageType
})
};
foreach (TimedTextElementBase element in regionElement.Children)
{
TimedTextElement child = BuildTimedTextElements(element, null);
if (child != null && child.CaptionElementType == TimedTextElementType.Animation)
{
#if HACK_XAMLTYPEINFO
var children = captionRegion.Animations as MediaMarkerCollection <TimedTextAnimation>;
#else
var children = captionRegion.Animations;
#endif
children.Add(child as TimedTextAnimation);
}
}
return(captionRegion);
}
