private Inline ImageInlineEvaluator()

in code/src/UI/Controls/Markdown.cs [403:462]
52 lines of code
7 McCabe index (conditional complexity)

        private Inline ImageInlineEvaluator(Match match)
        {
            if (match == null)
            {
                throw new ArgumentNullException(nameof(match));
            }

            string linkText = match.Groups[2].Value;
            string url = match.Groups[3].Value;
            BitmapImage imgSource = null;
            try
            {
                if (!Uri.IsWellFormedUriString(url, UriKind.Absolute) && !System.IO.Path.IsPathRooted(url))
                {
                    url = System.IO.Path.Combine(AssetPathRoot ?? string.Empty, url);
                }

                imgSource = new BitmapImage(new Uri(url, UriKind.RelativeOrAbsolute));
            }
            catch (Exception)
            {
                return new Run("!" + url) { Foreground = Brushes.Red };
            }

            var image = new Image { Source = imgSource, Tag = linkText };
            if (ImageStyle == null)
            {
                image.Margin = new Thickness(0);
            }
            else
            {
                image.Style = ImageStyle;
            }

            // Bind size so document is updated when image is downloaded
            if (imgSource.IsDownloading)
            {
                var binding = new Binding(nameof(BitmapImage.Width))
                {
                    Source = imgSource,
                    Mode = BindingMode.OneWay,
                };

                BindingExpressionBase bindingExpression = BindingOperations.SetBinding(image, Image.WidthProperty, binding);

                void DownloadCompletedHandler(object sender, EventArgs e)
                {
                    imgSource.DownloadCompleted -= DownloadCompletedHandler;
                    bindingExpression.UpdateTarget();
                }

                imgSource.DownloadCompleted += DownloadCompletedHandler;
            }
            else
            {
                image.Width = imgSource.Width;
            }

            return new InlineUIContainer(image);
        }