/// <summary>Creates the UI elements for the given HTML node and HTML view.</summary>
/// <param name="node">The HTML node.</param>
/// <param name="htmlView">The HTML view.</param>
/// <returns>The UI elements.</returns>
public DependencyObject[] CreateControls(HtmlNode node, IHtmlView htmlView)
{
var controls = new List<Grid>();
foreach (var child in node.Children.OfType<HtmlTagNode>().Where(c => c.Name == "li"))
{
var grid = new Grid();
grid.ColumnDefinitions.Add(new ColumnDefinition { Width = new GridLength(20)});
grid.ColumnDefinitions.Add(new ColumnDefinition { Width = new GridLength(1, GridUnitType.Star) });
var textBlock = CreateBulletSymbol(htmlView);
grid.Children.Add(textBlock);
Grid.SetColumn(textBlock, 0);
var panel = new StackPanel();
child.WrapWithHtmlTag();
foreach (var c in child.GetChildControls(htmlView).OfType<UIElement>())
{
var frameworkElement = c as FrameworkElement;
if (frameworkElement != null)
frameworkElement.HorizontalAlignment = HorizontalAlignment.Stretch;
panel.Children.Add(c);
}
grid.Children.Add(panel);
Grid.SetColumn(panel, 1);
controls.Add(grid);
}
AdjustMargins(htmlView, controls);
return controls.OfType<DependencyObject>().ToArray();
}
/// <summary>Creates the UI elements for the given HTML node and HTML view.</summary>
/// <param name="node">The HTML node.</param>
/// <param name="htmlView">The HTML view.</param>
/// <returns>The UI elements.</returns>
public DependencyObject[] CreateControls(HtmlNode node, IHtmlView htmlView)
{
var control = CreateControl(node, htmlView);
if (control != null)
return new [] { control };
return new DependencyObject[] { };
}
/// <summary>Creates the UI elements for the given HTML node and HTML view.</summary>
/// <param name="node">The HTML node.</param>
/// <param name="htmlView">The HTML view.</param>
/// <returns>The UI elements.</returns>
public DependencyObject[] CreateControls(HtmlNode node, IHtmlView htmlView)
{
try
{
var link = node.Attributes["href"];
var hyperlink = new Hyperlink();
if (Foreground != null)
hyperlink.Foreground = Foreground;
#if !WINRT
hyperlink.MouseOverForeground = htmlView.Foreground;
hyperlink.TextDecorations = TextDecorations.Underline;
#endif
foreach (var child in node.Children)
{
var leaves = child.GetControls(htmlView).ToArray();
if (leaves.Length > 0)
{
foreach (var item in leaves)
{
if (item is Inline)
hyperlink.Inlines.Add((Inline)item);
else
hyperlink.Inlines.Add(new InlineUIContainer { Child = (UIElement) item });
}
}
else if (child is HtmlTextNode && !string.IsNullOrEmpty(((HtmlTextNode)child).Text))
hyperlink.Inlines.Add(new Run { Text = ((HtmlTextNode)child).Text });
}
#if WINRT
var action = CreateLinkAction(hyperlink, link, htmlView);
hyperlink.Click += (sender, e) =>
{
action();
((Control)htmlView).Focus(FocusState.Programmatic);
};
#else
var action = CreateLinkAction(hyperlink, link, htmlView);
hyperlink.Command = new RelayCommand(delegate
{
if (!PhoneApplication.IsNavigating)
action();
});
#endif
return new DependencyObject[] { hyperlink };
}
catch
{
return node.GetChildControls(htmlView); // suppress link
}
}
/// <summary>Creates the UI elements for the given HTML node and HTML view.</summary>
/// <param name="node">The HTML node.</param>
/// <param name="htmlView">The HTML view.</param>
/// <returns>The UI elements.</returns>
public DependencyObject[] CreateControls(HtmlNode node, IHtmlView htmlView)
{
var controls = node.GetChildControls(htmlView);
foreach (var leave in controls)
{
var element = leave as TextElement;
if (element != null)
element.FontWeight = FontWeights.Bold;
}
return controls;
}
/// <summary>Creates a single UI element for the given HTML node and HTML view.</summary>
/// <param name="node">The node.</param>
/// <param name="htmlView">The text block.</param>
/// <returns>The UI element.</returns>
public override DependencyObject CreateControl(HtmlNode node, IHtmlView htmlView)
{
try
{
var imageUri = node.Attributes["src"];
var height = 0;
if (node.Attributes.ContainsKey("height"))
int.TryParse(node.Attributes["height"], out height);
var width = 0;
if (node.Attributes.ContainsKey("width"))
int.TryParse(node.Attributes["width"], out width);
if (height == 1 && width == 1)
return null;
var image = new Image();
image.Width = 0;
image.Height = 0;
var bitmapImage = new BitmapImage(new Uri(imageUri));
var imageBlock = new ImageBlock
{
Image = image,
UserHeight = height,
UserWidth = width,
Source = bitmapImage
};
bitmapImage.ImageOpened += delegate { imageBlock.Update(htmlView.ActualWidth); };
image.HorizontalAlignment = HorizontalAlignment.Left;
image.Source = bitmapImage;
image.Margin = new Thickness(0, htmlView.ParagraphMargin, 0, htmlView.ParagraphMargin);
if (width > 0)
image.Width = width;
if (height > 0)
image.Height = height;
htmlView.SizeDependentControls.Add(imageBlock);
return new ContentPresenter { Content = image };
}
catch
{
return null;
}
}
/// <summary>Creates the UI elements for the given HTML node and HTML view.</summary>
/// <param name="node">The HTML node.</param>
/// <param name="htmlView">The HTML view.</param>
/// <returns>The UI elements.</returns>
public DependencyObject[] CreateControls(HtmlNode node, IHtmlView htmlView)
{
var controls = node.GetChildControls(htmlView);
foreach (var leave in controls)
{
var element = leave as TextElement;
if (element != null)
{
#if WINRT
element.FontStyle = FontStyle.Italic;
#else
element.FontStyle = FontStyles.Italic;
#endif
}
}
return controls;
}
/// <summary>Creates the UI elements for the given HTML node and HTML view.</summary>
/// <param name="node">The HTML node.</param>
/// <param name="textBlock">The HTML view.</param>
/// <returns>The UI elements.</returns>
public DependencyObject[] CreateControls(HtmlNode node, IHtmlView textBlock)
{
var leaves = node.GetChildControls(textBlock);
if (leaves.Length == 1 && leaves[0] is Panel)
leaves = new[] { leaves[0] };
if (leaves.Length > 0)
{
var element = leaves.First() as FrameworkElement;
if (element != null)
element.Margin = new Thickness(element.Margin.Left, 0, element.Margin.Right, element.Margin.Bottom);
element = leaves.Last() as FrameworkElement;
if (element != null)
element.Margin = new Thickness(element.Margin.Left, element.Margin.Top, element.Margin.Right, 0);
}
return leaves;
}
/// <summary>Creates the UI elements for the given HTML node and HTML view.</summary>
/// <param name="node">The HTML node.</param>
/// <param name="htmlView">The HTML view.</param>
/// <returns>The UI elements.</returns>
public DependencyObject[] CreateControls(HtmlNode node, IHtmlView htmlView)
{
var list = new List<DependencyObject>();
var isFirst = true;
var addTopMargin = true;
var current = new List<Inline>();
foreach (var child in node.GetChildControls(htmlView))
{
if (isFirst)
{
if (child is Run)
{
var run = (Run)child;
run.Text = run.Text.TrimStart(' ', '\t'); // TODO: Trim all white spaces
}
isFirst = false;
}
if (child is Run && UseTextSplitting && ((Run)child).Text.Contains("\n")) // used to avoid 2048px max control size
{
// split text
var run = (Run) child;
var splits = run.Text.Split('\n');
// join some splits to avoid small junks
var currentSplit = "";
var newSplits = new List<string>();
for (var i = 0; i < splits.Length; i++)
{
var split = splits[i];
if (i != 0 && currentSplit.Length + split.Length > 16)
{
newSplits.Add(currentSplit);
currentSplit = split;
}
else
currentSplit += (i != 0 ? "\n" : "") + split;
}
newSplits.Add(currentSplit);
// create multiple text blocks
splits = newSplits.ToArray();
for (var i = 0; i < splits.Length; i++)
{
var split = splits[i];
current.Add(new Run { Text = split });
if (i < splits.Length - 1) // dont create for last
CreateTextBox(node, list, current, htmlView, i == 0 && addTopMargin, false);
}
addTopMargin = list.Count == 0;
} else if (child is Inline)
current.Add((Inline)child);
else
{
CreateTextBox(node, list, current, htmlView, addTopMargin, true);
list.Add(child);
addTopMargin = true;
}
}
CreateTextBox(node, list, current, htmlView, addTopMargin, true);
if (list.Count == 0)
return null;
return list.ToArray();
}
protected virtual RichTextBlock CreateTextBlock(HtmlNode node, IHtmlView htmlView)
{
var textBlock = new RichTextBlock();
#endif
textBlock.FontSize = htmlView.FontSize * FontSize;
textBlock.Foreground = Foreground ?? htmlView.Foreground;
textBlock.FontFamily = FontFamily ?? htmlView.FontFamily;
textBlock.FontStyle = FontStyle;
textBlock.FontWeight = FontWeight;
return textBlock;
}
/// <summary>Creates a formatted text block.</summary>
/// <param name="node">The node.</param>
/// <param name="htmlView">The HTML view.</param>
#if !WINRT
protected virtual RichTextBox CreateTextBlock(HtmlNode node, IHtmlView htmlView)
{
var textBlock = new RichTextBox();
private void CreateTextBox(HtmlNode node, List<DependencyObject> list, List<Inline> current, IHtmlView htmlView, bool addTopMargin, bool addBottomMargin)
{
if (current.Count > 0)
{
var textBlock = CreateTextBlock(node, htmlView);
var p = new Paragraph();
foreach (var r in current)
p.Inlines.Add(r);
textBlock.Blocks.Add(p);
#if !WINRT
textBlock.Background = textBlock.Background;
textBlock.Margin = new Thickness(-12, addTopMargin ? htmlView.ParagraphMargin : 0, -12, addBottomMargin ? htmlView.ParagraphMargin : 0);
#else
textBlock.IsTextSelectionEnabled = false;
textBlock.Margin = new Thickness(0, addTopMargin ? htmlView.ParagraphMargin : 0, 0, addBottomMargin ? htmlView.ParagraphMargin : 0);
#endif
list.Add(textBlock);
current.Clear();
}
}
/// <summary>Creates a single UI element for the given HTML node and HTML view.</summary>
/// <param name="node">The node.</param>
/// <param name="htmlView">The text block.</param>
/// <returns>The UI element.</returns>
public override DependencyObject CreateControl(HtmlNode node, IHtmlView htmlView)
{
return new Run { Text = ((HtmlTextNode)node).Text };
}
/// <summary>Creates a single UI element for the given HTML node and HTML view.</summary> /// <param name="node">The node.</param> /// <param name="htmlView">The HTML view.</param> /// <returns>The UI element.</returns> public abstract DependencyObject CreateControl(HtmlNode node, IHtmlView htmlView);
/// <summary>Adds a child node.</summary>
/// <param name="node">The node to add.</param>
public void AddChild(HtmlNode node)
{
Children.Add(node);
}
/// <summary>Creates the UI elements for the given HTML node and HTML view.</summary>
/// <param name="node">The HTML node.</param>
/// <param name="textBlock">The HTML view.</param>
/// <returns>The UI elements.</returns>
public DependencyObject[] CreateControls(HtmlNode node, IHtmlView textBlock)
{
return new DependencyObject[] { };
}
