/// <summary>
/// The bound HtmlDocument changed. Map the HTML nodes into XAML nodes and build the corresponding
/// RichTextBox for display.
/// </summary>
private static void FormattedTextChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e)
{
// TODO, Split up long boxes so that they are under height 2000px
RichTextBox textBlock = sender as RichTextBox;
textBlock.Blocks.Clear();
HtmlDocument doc = e.NewValue as HtmlDocument;
if (doc == null)
{
return;
}
Paragraph para = new Paragraph();
foreach (var node in doc.DocumentNode.ChildNodes)
{
HtmlNode _node = node;
// Hack to allow nested font tag
if (_node.Name == "font" && _node.FirstChild != null)
{
_node = node.FirstChild;
}
// Hack to allow strange quotes (nested in a span class quote tag)
else if (_node.Name == "span" && _node.Attributes.Contains("class") &&
_node.Attributes["class"].Value == "quote" && _node.HasChildNodes &&
_node.FirstChild.Name == "a" && _node.FirstChild.Attributes.Contains("class") &&
_node.FirstChild.Attributes["class"].Value == "quotelink" &&
_node.FirstChild.Attributes.Contains("href"))
{
_node = _node.FirstChild;
}
if (_node.Name == "br")
{
para.Inlines.Add(new LineBreak());
}
// Regular quote
else if (_node.Name == "a" && _node.Attributes.Contains("class") &&
_node.Attributes["class"].Value == "quotelink" &&
_node.Attributes.Contains("href"))
{
Match m = r.Match(_node.Attributes["href"].Value);
// Thread quote
if (m.Success)
{
Hyperlink h = new Hyperlink();
h.Click += (hsender, he) =>
{
if (textBlock.DataContext is PostViewModel)
{
// Because this click is *not* a routed event, we can't cancel it or
// mark it as handled and it will actually bubble down to the child post
// grid and hit that tap event too. To work around this we set the rootframe
// hit test property as a sentinel value to signal that tap handler to ignore
// the invocation.
App.IsPostTapAllowed = false;
PostViewModel pvm = (PostViewModel)textBlock.DataContext;
pvm.QuoteLinkTapped(m.Groups[2].Value, m.Groups[3].Value, ulong.Parse(m.Groups[4].Value));
// We clear this sentinel property on the dispatcher, since the routed tap events actually get queued on
// the dispatcher and don't happen until this current function returns.
Deployment.Current.Dispatcher.BeginInvoke(() => App.IsPostTapAllowed = true);
}
};
h.Inlines.Add(new Run()
{
Foreground = App.Current.Resources["LinkBrush"] as SolidColorBrush,
Text = WebUtility.HtmlDecode(_node.InnerText).Replace("'", "'").Replace(",", ",")
});
para.Inlines.Add(h);
}
else
{
Match m3 = r3.Match(_node.Attributes["href"].Value);
if (m3.Success)
{
Hyperlink h = new Hyperlink();
h.Click += (hsender, he) =>
{
if (textBlock.DataContext is PostViewModel)
{
App.IsPostTapAllowed = false;
(textBlock.DataContext as PostViewModel).BoardLinkTapped(m3.Groups[1].Value + m3.Groups[2].Value);
Deployment.Current.Dispatcher.BeginInvoke(() => App.IsPostTapAllowed = true);
}
};
h.Inlines.Add(new Run()
{
Foreground = App.Current.Resources["LinkBrush"] as SolidColorBrush,
Text = WebUtility.HtmlDecode(_node.InnerText).Replace("'", "'").Replace(",", ",")
});
para.Inlines.Add(h);
}
else
{
Match m2 = r2.Match(_node.Attributes["href"].Value);
// Text board quote?
if (m2.Success)
{
para.Inlines.Add(WebUtility.HtmlDecode(_node.InnerText).Replace("'", "'").Replace(",", ","));
}
else
{
//Debug.WriteLine(_node.OuterHtml);
para.Inlines.Add(WebUtility.HtmlDecode(_node.InnerText).Replace("'", "'").Replace(",", ","));
}
}
}
}
// Dead Quote
else if (_node.Name == "span" &&
_node.Attributes.Contains("class") &&
_node.Attributes["class"].Value == "quote deadlink")
{
para.Inlines.Add(new Run()
{
Foreground = App.Current.Resources["GreentextBrush"] as SolidColorBrush,
Text = WebUtility.HtmlDecode(_node.InnerText).Replace("'", "'").Replace(",", ",")
});
}
// Greentext
else if (_node.Name == "span" && _node.Attributes.Contains("class") &&
_node.Attributes["class"].Value == "quote")
{
para.Inlines.Add(new Run()
{
Foreground = App.Current.Resources["GreentextBrush"] as SolidColorBrush,
Text = WebUtility.HtmlDecode(_node.InnerText).Replace("'", "'").Replace(",", ",")
});
}
// Dead Quote 2#
else if (_node.Name == "span" && _node.Attributes.Contains("class") && _node.Attributes["class"].Value == "quote deadlink")
{
para.Inlines.Add(new Run()
{
Foreground = App.Current.Resources["GreentextBrush"] as SolidColorBrush,
Text = WebUtility.HtmlDecode(_node.ChildNodes[0].InnerText).Replace("'", "'").Replace(",", ",")
});
}
// Banned text
else if ((_node.Name == "b" || _node.Name == "strong") && _node.Attributes.Contains("style") &&
_node.Attributes["style"].Value.Replace(" ", "") == "color:red;")
{
para.Inlines.Add(new Run()
{
Foreground = App.Current.Resources["BannedBrush"] as SolidColorBrush,
Text = WebUtility.HtmlDecode(_node.InnerText).Replace("'", "'").Replace(",", ",")
});
}
// Spoiler
else if (_node.Name == "s")
{
Hyperlink h = new Hyperlink()
{
TextDecorations = null
};
int len = WebUtility.HtmlDecode(_node.InnerText).Replace("'", "'").Replace(",", ",").Length;
// To simulate spoiler display, we just put the unicode wide block symbol over and over in a spoiler color,
// since we can't actually highlight a region of the text or obscure it normally.
Run r = new Run()
{
Foreground = App.Current.Resources["SpoilerBrush"] as SolidColorBrush,
Text = new String('\u2588', len),
FontSize = CriticalSettingsManager.Current.TextSize
};
bool isClicked = false;
h.Click += (hsender, he) =>
{
if (isClicked)
{
return;
}
isClicked = true;
App.IsPostTapAllowed = false;
r.Text = WebUtility.HtmlDecode(_node.InnerText).Replace("'", "'").Replace(",", ",");
r.FontSize = CriticalSettingsManager.Current.TextSize;
h.TextDecorations = null;
Deployment.Current.Dispatcher.BeginInvoke(() => App.IsPostTapAllowed = true);
};
h.Inlines.Add(r);
para.Inlines.Add(h);
}
//Hyperlink
else if (_node.Name == "a" && _node.Attributes.Contains("href"))
{
Hyperlink h = new Hyperlink()
{
NavigateUri = new Uri(_node.Attributes["href"].Value), TargetName = "_blank"
};
h.Click += (hsender, he) =>
{
App.IsPostTapAllowed = false;
Deployment.Current.Dispatcher.BeginInvoke(() => App.IsPostTapAllowed = true);
};
h.Inlines.Add(new Run()
{
Foreground = App.Current.Resources["LinkBrush"] as SolidColorBrush,
Text = WebUtility.HtmlDecode(_node.InnerText).Replace("'", "'").Replace(",", ",")
});
para.Inlines.Add(h);
}
// Bold
else if (_node.Name == "b" || _node.Name == "strong")
{
Bold b = new Bold();
b.Inlines.Add(WebUtility.HtmlDecode(_node.InnerText).Replace("'", "'").Replace(",", ","));
para.Inlines.Add(b);
}
// Underline
else if (_node.Name == "u")
{
Underline u = new Underline();
u.Inlines.Add(WebUtility.HtmlDecode(_node.InnerText).Replace("'", "'").Replace(",", ","));
para.Inlines.Add(u);
}
else if (_node.Name == "small")
{
para.Inlines.Add(new Run()
{
Text = WebUtility.HtmlDecode(_node.InnerText).Replace("'", "'").Replace(",", ","),
FontSize = CriticalSettingsManager.Current.TextSize - 3
});
}
// Regular text
else if (_node.Name == "#text")
{
// para.Inlines.Add(WebUtility.HtmlDecode(_node.InnerText).Replace("'", "'").Replace(",", ","));
List <Inline> inlines = MarkupLinks(WebUtility.HtmlDecode(_node.InnerText).Replace("'", "'").Replace(",", ","));
foreach (Inline inline in inlines)
{
para.Inlines.Add(inline);
}
}
else
{
//Debug.WriteLine(_node.OuterHtml);
para.Inlines.Add(WebUtility.HtmlDecode(_node.InnerText).Replace("'", "'").Replace(",", ","));
}
}
textBlock.Blocks.Add(para);
}