public override void ApplyStyles(DocumentStyle style, DependencyObject ctrl, HtmlFragment fragment)
{
var li = ctrl as Paragraph;
var currentStyle = style.Li;
if (!string.IsNullOrEmpty(currentStyle?.Bullet))
{
currentStyle.RegisterPropertyChangedCallback(ListStyle.BulletProperty, (sender, dp) =>
{
var r = li.Inlines[0] as Run;
if (r != null)
{
r.Text = currentStyle?.Bullet;
}
});
li.Inlines.Insert(0, new Run
{
Text = currentStyle.Bullet
});
li.Inlines.Insert(1, new Run
{
Text = " "
});
}
ApplyParagraphStyles(li, currentStyle);
}
private static string AddFragments(TagReader reader, HtmlFragment parentFragment, Stack<string> openTagStack)
{
while (reader.Read())
{
parentFragment.TryToAddText(HtmlText.Create(reader.Document, reader.PreviousTag, reader.CurrentTag));
if (reader.CurrentTag.TagType == TagType.Close && openTagStack.Any(t => t.Equals(reader.CurrentTag.Name, StringComparison.CurrentCultureIgnoreCase)))
{
return reader.CurrentTag.Name;
}
var node = parentFragment.AddNode(reader.CurrentTag);
node.Parent = parentFragment;
if (reader.CurrentTag.TagType == TagType.Open)
{
openTagStack.Push(reader.CurrentTag.Name);
var lastClosed = AddFragments(reader, node, openTagStack);
if (lastClosed != openTagStack.Pop())
{
return lastClosed;
}
}
}
parentFragment.TryToAddText(HtmlText.Create(reader.Document, reader.CurrentTag, null));
return null;
}
public override void ApplyStyles(DocumentStyle style, DependencyObject ctrl, HtmlFragment fragment)
{
var grid = ctrl as Grid;
var vb = grid.GetChild<Viewbox>(0, 0);
ApplyImageStyles(vb, GetStyle(style));
}
public override void ApplyStyles(DocumentStyle style, DependencyObject ctrl, HtmlFragment fragment)
{
if (!IsInline(fragment))
{
ApplyImageStyles(ctrl as Viewbox, style.Img);
}
}
private static string AddFragments(TagReader reader, HtmlFragment parentFragment, Stack <string> openTagStack)
{
while (reader.Read())
{
parentFragment.TryToAddText(HtmlText.Create(reader.Document, reader.PreviousTag, reader.CurrentTag));
if (reader.CurrentTag.TagType == TagType.Close && openTagStack.Any(t => t.Equals(reader.CurrentTag.Name, StringComparison.CurrentCultureIgnoreCase)))
{
return(reader.CurrentTag.Name);
}
var node = parentFragment.AddNode(reader.CurrentTag);
node.Parent = parentFragment;
if (reader.CurrentTag.TagType == TagType.Open)
{
openTagStack.Push(reader.CurrentTag.Name);
var lastClosed = AddFragments(reader, node, openTagStack);
if (lastClosed != openTagStack.Pop())
{
return(lastClosed);
}
}
}
return(null);
}
public override DependencyObject GetControl(HtmlFragment fragment)
{
var node = fragment as HtmlNode;
var src = GetImageSrc(node);
if (node != null && !string.IsNullOrEmpty(src))
{
Uri uri;
if (Uri.TryCreate(src, UriKind.Absolute, out uri))
{
try
{
var viewbox = CreateImage(node, src);
if (IsInline(fragment))
{
return new InlineUIContainer
{
Child = viewbox
};
}
else
{
return viewbox;
}
}
catch (Exception ex)
{
Debug.WriteLine($"Error loading img@src '{uri?.ToString()}': {ex.Message}");
}
}
}
return null;
}
public override void ApplyStyles(DocumentStyle style, DependencyObject ctrl, HtmlFragment fragment)
{
var column = ctrl as GridColumn;
var border = column.Row.Container.GetChild<Border>(column.Index, column.Row.Index);
if (border != null)
{
var tableBorder = GetTableBorder(fragment.AsNode());
if (tableBorder.HasValue)
{
border.BorderThickness = new Thickness(tableBorder.Value);
border.BorderBrush = style.Table?.BorderForeground ?? new SolidColorBrush(Colors.Black);
}
else if (style.Table != null && !double.IsNaN(style.Table.Border.Top))
{
BindingOperations.SetBinding(border, Border.BorderThicknessProperty, CreateBinding(style.Table, "Border"));
BindingOperations.SetBinding(border, Border.BorderBrushProperty, CreateBinding(style.Table, "BorderForeground"));
}
if (style.Table != null)
{
BindingOperations.SetBinding(border, Border.MarginProperty, CreateBinding(style.Td, "Margin"));
BindingOperations.SetBinding(border, Border.PaddingProperty, CreateBinding(style.Td, "Padding"));
}
}
}
public override void ApplyStyles(DocumentStyle style, DependencyObject ctrl, HtmlFragment fragment)
{
var caption = ctrl as Paragraph;
caption.TextAlignment = Parse(style.Img.HorizontalAlignment);
ApplyParagraphStyles(caption, style.FigCaption);
}
public override DependencyObject GetControl(HtmlFragment fragment)
{
return new GridColumn()
{
ColSpan = GetSpan(fragment.AsNode(), "colspan"),
RowSpan = GetSpan(fragment.AsNode(), "rowspan"),
};
}
public override DependencyObject GetControl(HtmlFragment fragment)
{
//LineBreak doesn't work with hyperlink
return new Run
{
Text = Environment.NewLine
};
}
public override DependencyObject GetControl(HtmlFragment fragment)
{
var text = fragment?.AsText();
if (text != null && !string.IsNullOrEmpty(text.Content))
{
return new Run
{
Text = text.Content
};
}
return null;
}
protected static string GetIframeSrc(HtmlFragment fragment)
{
var node = fragment.AsNode();
if (node != null)
{
if (node.Attributes.ContainsKey("src"))
{
return node.Attributes["src"];
}
}
return string.Empty;
}
public override void ApplyStyles(DocumentStyle style, DependencyObject ctrl, HtmlFragment fragment)
{
if (style?.Table != null)
{
var grid = ctrl as Grid;
BindingOperations.SetBinding(grid, Grid.HorizontalAlignmentProperty, CreateBinding(style.Table, "HorizontalAlignment"));
foreach (var columnDefinition in grid.ColumnDefinitions)
{
BindingOperations.SetBinding(columnDefinition, ColumnDefinition.WidthProperty, CreateBinding(style.Table, "ColumnWidth"));
}
ApplyContainerStyles(grid, style.Table);
}
}
public override DependencyObject GetControl(HtmlFragment fragment)
{
var node = fragment as HtmlNode;
if (node != null)
{
var grid = new Grid
{
HorizontalAlignment = HorizontalAlignment.Stretch,
};
grid.Tapped += (sender, e) =>
{
Launcher.LaunchUriAsync(new Uri(GetIframeSrc(node))).AsTask().FireAndForget();
};
grid.PointerEntered += (sender, e) =>
{
Window.Current.CoreWindow.PointerCursor = _handCursor;
};
grid.PointerExited += (sender, e) =>
{
Window.Current.CoreWindow.PointerCursor = _arrowCursor;
};
AddColumn(grid);
AddColumn(grid);
AddColumn(grid);
var screenShot = GetImageControl((i) => SetScreenshot(i, node));
Grid.SetColumn(screenShot, 0);
Grid.SetColumnSpan(screenShot, 3);
grid.Children.Add(screenShot);
var player = GetImageControl((i) => i.Source = GetPlayerImage());
Grid.SetColumn(player, 1);
grid.Children.Add(player);
return grid;
}
return null;
}
private static ContainerStyle GetDocumentStyle(HtmlFragment fragment, DocumentStyle style)
{
if (style == null)
{
return null;
}
switch (fragment.Name.ToLowerInvariant())
{
case "div":
case "tbody":
return style.Div;
case "ul":
return style.Ul;
case "ol":
return style.Ol;
case "dl":
return style.Dl;
case "section":
return style.Section;
case "article":
return style.Article;
case "header":
return style.Header;
case "footer":
return style.Footer;
case "main":
return style.Main;
case "figure":
return style.Figure;
case "details":
return style.Details;
case "summary":
return style.Summary;
default:
return null;
}
}
private static ParagraphStyle GetDocumentStyle(HtmlFragment fragment, DocumentStyle style)
{
if (style == null)
{
return null;
}
switch (fragment.Name.ToLowerInvariant())
{
case "h1":
return style.H1;
case "h2":
return style.H2;
case "h3":
return style.H3;
case "h4":
return style.H4;
case "h5":
return style.H5;
case "h6":
return style.H6;
default:
return null;
}
}
public abstract DependencyObject GetControl(HtmlFragment fragment);
public override DependencyObject GetControl(HtmlFragment fragment)
{
return new Paragraph();
}
public override void ApplyStyles(DocumentStyle style, DependencyObject ctrl, HtmlFragment fragment)
{
ApplyParagraphStyles(ctrl as Paragraph, style.Dt);
}
public override bool Match(HtmlFragment fragment)
{
var src = GetIframeSrc(fragment);
return fragment.Name == "iframe" && !string.IsNullOrWhiteSpace(src) && src.ToLowerInvariant().Contains("channel9.msdn.com");
}
public override DependencyObject GetControl(HtmlFragment fragment)
{
return new GridRow();
}
private void WriteFragments(HtmlFragment fragment, DocumentContainer parentContainer)
{
if (parentContainer != null)
{
foreach (var childFragment in fragment.Fragments)
{
var writer = HtmlWriterFactory.Find(childFragment);
var ctrl = writer?.GetControl(childFragment);
if (ctrl != null)
{
if (!parentContainer.CanContain(ctrl))
{
var antecesorContainer = parentContainer.Find(ctrl);
if (antecesorContainer == null)
{
continue;
}
else
{
parentContainer = antecesorContainer;
}
}
var currentContainer = parentContainer.Append(ctrl);
WriteFragments(childFragment, currentContainer);
writer?.ApplyStyles(_docStyles, ctrl, childFragment);
}
}
}
}
private static bool IsInline(HtmlFragment fragment)
{
return fragment.Parent != null && fragment.Parent.Name == "p";
}
public static HtmlWriter Find(HtmlFragment fragment)
{
EnsureWriters();
return _writers.FirstOrDefault(w => w.Match(fragment)); ;
}
public override void ApplyStyles(DocumentStyle style, DependencyObject ctrl, HtmlFragment fragment)
{
ApplyTextStyles(ctrl as Span, style.Q);
}
public override void ApplyStyles(DocumentStyle style, DependencyObject ctrl, HtmlFragment fragment)
{
ApplyContainerStyles(ctrl as Grid, GetDocumentStyle(fragment, style));
}
public virtual bool Match(HtmlFragment fragment)
{
return fragment != null && !string.IsNullOrEmpty(fragment.Name) && TargetTags.Any(t => t.Equals(fragment.Name, StringComparison.CurrentCultureIgnoreCase));
}
public virtual void ApplyStyles(DocumentStyle style, DependencyObject ctrl, HtmlFragment fragment)
{
}
public override DependencyObject GetControl(HtmlFragment fragment)
{
var node = fragment as HtmlNode;
if (node != null && node.Attributes.ContainsKey("href"))
{
Hyperlink a = new Hyperlink();
Uri uri;
if (Uri.TryCreate(node.Attributes["href"], UriKind.Absolute, out uri))
{
try
{
a.NavigateUri = uri;
}
catch (Exception ex)
{
Debug.WriteLine($"Error loading a@href '{uri?.ToString()}': {ex.Message}");
}
}
return a;
}
return null;
}
