private static void ExportNode(HtmlNode node, TextWriter writer, string indent)
{
bool emptyNode = node.ChildNodes.Count == 0;
bool dataNode = node.Data != null;
if (dataNode)
{
string value = node.Data.Value;
value = value.Replace("&", "&");
value = value.Replace("<", "<");
value = value.Replace(">", ">");
writer.Write("{0}", value);
}
else
{
string tagName = GetTagName(node.Tag);
string attributes = GetAttributes(node);
if (emptyNode && node.Tag != HtmlTag.Style)
{
//writer.WriteLine("{0}<{1} {2}/>", indent, tagName, attributes);
writer.Write("<{0} {1}/>", tagName, attributes);
}
else if (node.Tag == HtmlTag.Style)
{
writer.WriteLine("{0}<meta http-equiv=\"content-type\" content=\"text/html; charset=UTF-8\">", indent);
writer.WriteLine("{0}<style>", indent);
writer.WriteLine(indent + " body { font-family: Arial; }");
writer.WriteLine(indent + " a:link { text-decoration: none; }");
writer.WriteLine("{0}</style>", indent);
}
else
{
//writer.WriteLine("{0}<{1}{2}>", indent, tagName, attributes);
writer.Write("<{0}{1}>", tagName, attributes);
foreach (var childNode in node.ChildNodes)
{
ExportNode(childNode, writer, indent + " ");
}
//writer.WriteLine("{0}</{1}>", indent, tagName);
writer.Write("</{0}>", tagName);
}
}
}
private static string GetAttributes(HtmlNode node)
{
Dictionary<string, string> attributes = new Dictionary<string, string>();
Dictionary<string, string> styleAttributes = new Dictionary<string, string>();
HtmlRenderState state = node.RenderState;
if (node.Tag == HtmlTag.Html || node.Tag == HtmlTag.Head ||
node.Tag == HtmlTag.Title || node.Tag == HtmlTag.Style)
{
return "";
}
// Write out style attributes
if (state.HasBackground == 1)
{
if (state.BackgroundImageOffset == 0)
{
styleAttributes.Add("background-color", GetColor(state.BackgroundColor));
}
else
{
styleAttributes.Add("background-image", "url(" + state.BackgroundImageTextureInfo.TextureName + ".png)");
styleAttributes.Add("background-repeat", GetAttributeValue(state.BackgroundRepeat));
}
}
if (state.Width > -1)
{
if (node.NodeType == HtmlNodeType.HtmlTableNode || node.NodeType == HtmlNodeType.HtmlTableElementNode)
{
attributes.Add("width", state.Width.ToString());
}
else
{
styleAttributes.Add("width", GetSize(state.Width));
}
}
if (state.Height > -1)
{
if (node.NodeType == HtmlNodeType.HtmlTableNode || node.NodeType == HtmlNodeType.HtmlTableElementNode)
{
attributes.Add("height", state.Height.ToString());
}
else
{
styleAttributes.Add("height", GetSize(state.Height));
}
}
styleAttributes.Add("margin-left", GetSize(state.MarginLeft));
styleAttributes.Add("margin-right", GetSize(state.MarginRight));
styleAttributes.Add("margin-top", GetSize(state.MarginTop));
styleAttributes.Add("margin-bottom", GetSize(state.MarginBottom));
styleAttributes.Add("padding-left", GetSize(state.PaddingLeft));
styleAttributes.Add("padding-right", GetSize(state.PaddingRight));
styleAttributes.Add("padding-top", GetSize(state.PaddingTop));
styleAttributes.Add("padding-bottom", GetSize(state.PaddingBottom));
styleAttributes.Add("border-left", GetAttributeValue(state.BorderLeftStyle) + " " + GetSize(state.BorderLeftWidth) + " " + GetColor(state.BorderLeftColor));
styleAttributes.Add("border-right", GetAttributeValue(state.BorderRightStyle) + " " + GetSize(state.BorderRightWidth) + " " + GetColor(state.BorderRightColor));
styleAttributes.Add("border-top", GetAttributeValue(state.BorderTopStyle) + " " + GetSize(state.BorderTopWidth) + " " + GetColor(state.BorderTopColor));
styleAttributes.Add("border-bottom", GetAttributeValue(state.BorderBottomStyle) + " " + GetSize(state.BorderBottomWidth) + " " + GetColor(state.BorderBottomColor));
styleAttributes.Add("text-decoration", GetAttributeValue(state.TextDecoration));
styleAttributes.Add("font-size", GetAttributeValue(state.FontSize));
styleAttributes.Add("display", GetAttributeValue(state.Display));
styleAttributes.Add("color", GetColor(state.Color));
if (node.NodeType == HtmlNodeType.HtmlTableNode)
{
attributes.Add("cellpadding", state.CellPadding.ToString());
attributes.Add("cellspacing", state.CellSpacing.ToString());
}
else if (node.NodeType == HtmlNodeType.HtmlTableElementNode)
{
if (state.ColSpan > 1)
{
attributes.Add("colspan", state.ColSpan.ToString());
}
if (state.RowSpan > 1)
{
attributes.Add("rowspan", state.RowSpan.ToString());
}
if ((int)state.VerticalAlign > -1)
{
attributes.Add("valign", GetAttributeValue(state.VerticalAlign));
}
if ((int)state.HorizontalAlign > -1)
{
attributes.Add("align", GetAttributeValue(state.HorizontalAlign));
}
}
else
{
if ((int)state.VerticalAlign > -1)
{
styleAttributes.Add("vertical-align", GetAttributeValue(state.VerticalAlign));
}
if ((int)state.HorizontalAlign > -1)
{
styleAttributes.Add("text-align", GetAttributeValue(state.HorizontalAlign));
}
}
if (node.Tag == HtmlTag.A)
{
attributes.Add("href", "#");
attributes.Add("onclick", "alert('Link to: " + node.LinkAddress + "');");
}
else if (node.Tag == HtmlTag.Img)
{
string path = node.LinkAddress;
path = path.Substring(0, path.Length - Path.GetExtension(path).Length);
attributes.Add("src", path + ".png");
}
if (styleAttributes.Count > 0)
{
StringBuilder sbStyle = new StringBuilder();
foreach (var pair in styleAttributes)
{
sbStyle.AppendFormat("{0}: {1}; ", pair.Key, pair.Value);
}
attributes.Add("style", sbStyle.ToString());
}
StringBuilder sbAttributes = new StringBuilder();
foreach (var pair in attributes)
{
sbAttributes.AppendFormat(" {0}=\"{1}\"", pair.Key, pair.Value);
}
return sbAttributes.ToString();
}
public static void Export(HtmlNode rootNode, TextWriter writer)
{
ExportNode(rootNode, writer, "");
}