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https://github.com/bloxstraplabs/bloxstrap.git
synced 2025-04-21 18:11:27 -07:00
more robust markdowntextblock
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parent
75fe43f57d
commit
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@ -6,6 +6,7 @@ using System.Windows;
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using Markdig.Syntax;
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using Markdig.Syntax.Inlines;
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using Markdig;
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using System.Windows.Media;
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namespace Bloxstrap.UI.Elements.Controls
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{
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@ -19,15 +20,97 @@ namespace Bloxstrap.UI.Elements.Controls
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{
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public static readonly DependencyProperty MarkdownTextProperty =
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DependencyProperty.Register(nameof(MarkdownText), typeof(string), typeof(MarkdownTextBlock),
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new FrameworkPropertyMetadata(string.Empty,FrameworkPropertyMetadataOptions.AffectsMeasure | FrameworkPropertyMetadataOptions.AffectsRender, OnTextMarkdownChanged));
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new FrameworkPropertyMetadata(string.Empty, FrameworkPropertyMetadataOptions.AffectsMeasure | FrameworkPropertyMetadataOptions.AffectsRender, OnTextMarkdownChanged));
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[Localizability(LocalizationCategory.Text)]
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public string MarkdownText
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{
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get => Inlines.ToString() ?? "";
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get => (string)GetValue(MarkdownTextProperty);
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set => SetValue(MarkdownTextProperty, value);
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}
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/// <returns>Span, skip</returns>
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private static (Span, int) GetInlineUntilEndTagDetected(Markdig.Syntax.Inlines.Inline? inline, string tagName)
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{
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string endTag = $"<{tagName}/>"; // TODO: better way of doing this
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var span = new Span();
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int skip = 0;
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var current = inline;
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while (current is Markdig.Syntax.Inlines.Inline currentInline)
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{
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skip++;
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if (currentInline is HtmlInline html)
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{
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if (html.Tag == endTag)
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return (span, skip);
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}
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(var childInline, int childSkip) = GetWpfInlineFromMarkdownInline(currentInline);
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if (childInline != null)
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span.Inlines.Add(childInline);
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skip += childSkip;
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current = currentInline.NextSibling;
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}
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throw new Exception("End tag not detected");
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}
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/// <returns>Inline, skip</returns>
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private static (System.Windows.Documents.Inline?, int) GetWpfInlineFromMarkdownInline(Markdig.Syntax.Inlines.Inline? inline)
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{
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if (inline is LiteralInline literalInline)
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{
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return (new Run(literalInline.ToString()), 0);
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}
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else if (inline is LinkInline linkInline)
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{
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string? url = linkInline.Url;
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var textInline = linkInline.FirstChild;
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if (string.IsNullOrEmpty(url))
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{
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return GetWpfInlineFromMarkdownInline(textInline);
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}
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(var childInline, int skip) = GetWpfInlineFromMarkdownInline(textInline);
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return (new Hyperlink(childInline)
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{
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Command = GlobalViewModel.OpenWebpageCommand,
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CommandParameter = url
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}, skip);
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}
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else if (inline is HtmlInline htmlInline)
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{
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string? tag = htmlInline.Tag; // TODO: parse tag
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var nextInline = htmlInline.NextSibling;
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if (tag == "<highlight>")
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{
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(var span, int skip) = GetInlineUntilEndTagDetected(nextInline, "highlight");
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span.Background = new SolidColorBrush(Color.FromArgb(50,255,255,255));
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return (span, skip);
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}
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}
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return (null, 0);
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}
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/// <returns>Skip</returns>
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private int AddMarkdownInline(Markdig.Syntax.Inlines.Inline? inline)
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{
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(var wpfInline, int skip) = GetWpfInlineFromMarkdownInline(inline);
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if (wpfInline != null)
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Inlines.Add(wpfInline);
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return skip;
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}
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private static void OnTextMarkdownChanged(DependencyObject dependencyObject, DependencyPropertyChangedEventArgs dependencyPropertyChangedEventArgs)
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{
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if (dependencyObject is not MarkdownTextBlock markdownTextBlock)
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@ -43,26 +126,12 @@ namespace Bloxstrap.UI.Elements.Controls
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if (document.FirstOrDefault() is not ParagraphBlock paragraphBlock || paragraphBlock.Inline == null)
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return;
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foreach (var inline in paragraphBlock.Inline)
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for (int i = 0; i < paragraphBlock.Inline.Count(); i++)
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{
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if (inline is LiteralInline literalInline)
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{
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markdownTextBlock.Inlines.Add(new Run(literalInline.ToString()));
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}
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else if (inline is LinkInline linkInline)
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{
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string? url = linkInline.Url;
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string? text = linkInline.FirstChild?.ToString();
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var inline = paragraphBlock.Inline.ElementAt(i);
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if (string.IsNullOrEmpty(url) || string.IsNullOrEmpty(text))
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continue;
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markdownTextBlock.Inlines.Add(new Hyperlink(new Run(text))
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{
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Command = GlobalViewModel.OpenWebpageCommand,
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CommandParameter = url
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});
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}
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int skip = markdownTextBlock.AddMarkdownInline(inline);
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i += skip;
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}
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}
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}
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