protected static bool IsFullMedia(TLMessageMediaBase media, bool width = false)
{
if (media == null)
{
return(false);
}
if (media.TypeId == TLType.MessageMediaGeo)
{
return(true);
}
else if (media.TypeId == TLType.MessageMediaVenue)
{
return(true);
}
else if (media.TypeId == TLType.MessageMediaPhoto)
{
return(true);
}
else if (media.TypeId == TLType.MessageMediaDocument)
{
var documentMedia = media as TLMessageMediaDocument;
if (TLMessage.IsGif(documentMedia.Document))
{
return(true);
}
else if (TLMessage.IsVideo(documentMedia.Document))
{
return(true);
}
}
else if (media.TypeId == TLType.MessageMediaInvoice && width)
{
var invoiceMedia = media as TLMessageMediaInvoice;
if (invoiceMedia.HasPhoto && invoiceMedia.Photo != null)
{
return(true);
}
}
else if (media.TypeId == TLType.MessageMediaWebPage && width)
{
var webPageMedia = media as TLMessageMediaWebPage;
var webPage = webPageMedia.WebPage as TLWebPage;
if (webPage != null && MediaTemplateSelector.IsWebPagePhotoTemplate(webPage))
{
return(true);
}
}
return(false);
}
protected override Size MeasureOverride(Size availableSize)
{
if (ViewModel?.Media == null || !IsFullMedia(ViewModel?.Media, true))
{
return(base.MeasureOverride(availableSize));
}
var sumWidth = 0.0;
object constraint = null;
if (ViewModel?.Media is TLMessageMediaPhoto photoMedia)
{
constraint = photoMedia.Photo;
}
else if (ViewModel?.Media is TLMessageMediaDocument documentMedia)
{
constraint = documentMedia.Document;
}
else if (ViewModel?.Media is TLMessageMediaInvoice invoiceMedia)
{
constraint = invoiceMedia.Photo;
}
else if (ViewModel?.Media is TLMessageMediaWebPage webPageMedia)
{
if (webPageMedia.WebPage is TLWebPage webPage && MediaTemplateSelector.IsWebPagePhotoTemplate(webPage))
{
sumWidth = 8 + 10 + 10;
constraint = webPage.Photo;
}
}
else if (ViewModel?.Media is TLMessageMediaGeo || ViewModel?.Media is TLMessageMediaVenue)
{
constraint = ViewModel?.Media;
}
if (constraint == null)
{
return(base.MeasureOverride(availableSize));
}
var availableWidth = Math.Min(availableSize.Width, Math.Min(double.IsNaN(Width) ? double.PositiveInfinity : Width, 320 + sumWidth));
var availableHeight = Math.Min(availableSize.Height, Math.Min(double.IsNaN(Height) ? double.PositiveInfinity : Height, 420));
var width = 0.0;
var height = 0.0;
if (constraint is TLMessageMediaGeo || constraint is TLMessageMediaVenue)
{
width = 320;
height = 240;
goto Calculate;
}
var photo = constraint as TLPhoto;
if (photo != null)
{
//var photoSize = photo.Sizes.OrderByDescending(x => x.W).FirstOrDefault();
var photoSize = photo.Sizes.OfType <TLPhotoSize>().OrderByDescending(x => x.W).FirstOrDefault();
if (photoSize != null)
{
width = photoSize.W;
height = photoSize.H;
goto Calculate;
}
}
if (constraint is TLDocument document)
{
constraint = document.Attributes;
}
if (constraint is TLWebDocument webDocument)
{
constraint = webDocument.Attributes;
}
if (constraint is TLVector <TLDocumentAttributeBase> attributes)
{
var imageSize = attributes.OfType <TLDocumentAttributeImageSize>().FirstOrDefault();
if (imageSize != null)
{
width = imageSize.W;
height = imageSize.H;
goto Calculate;
}
var video = attributes.OfType <TLDocumentAttributeVideo>().FirstOrDefault();
if (video != null)
{
width = video.W;
height = video.H;
goto Calculate;
}
}
Calculate:
if (_stateControl == null)
{
_stateControl = FindName("StatusControl") as FrameworkElement;
}
if (_stateControl.DesiredSize.IsEmpty)
{
_stateControl.Measure(availableSize);
}
width = Math.Max(_stateControl.DesiredSize.Width + /*margin left*/ 8 + /*padding right*/ 6 + /*margin right*/ 6, Math.Max(width, 96) + sumWidth);
if (width > availableWidth || height > availableHeight)
{
var ratioX = availableWidth / width;
var ratioY = availableHeight / height;
var ratio = Math.Min(ratioX, ratioY);
return(base.MeasureOverride(new Size(Math.Max(96, width * ratio), availableSize.Height)));
}
else
{
return(base.MeasureOverride(new Size(Math.Max(96, width), availableSize.Height)));
}
}
