public abstract string textForChange(string text, DiffMatchPatch.Operation op);
override public string textForChange(string text, DiffMatchPatch.Operation op)
{
if (text == "" || text == null)
{
return("");
}
html.LoadHtml(text);
var containsHtml = (html.DocumentNode.Descendants().Count() > 0);
if (containsHtml)
{
if (listElements.Any(text.Contains))
{
var listNodes = html.DocumentNode.Descendants().Where(n => n.Name == "li" || n.Name == "ol");
foreach (var li in listNodes)
{
addAttribute("class", Tuple.Create("styleDel", "styleIns"), op, li);
}
}
if (tableElements.Any(text.Contains))
{
var tableNodes = html.DocumentNode.Descendants().Where(t => t.Name == "table" || t.Name == "td" || t.Name == "tr");
foreach (var table in tableNodes)
{
if (table.Name == "table")
{
addAttribute("bordercolor", Tuple.Create("red", "green"), op, table);
}
else if (table.Name == "td")
{
addAttribute("class", Tuple.Create("tdDel", "tdIns"), op, table);
}
else
{
addAttribute("class", Tuple.Create("color: red", "color: green"), op, table);
}
}
}
if (text.Contains(div))
{
var divs = html.DocumentNode.Descendants().Where(d => d.Name == "div");
foreach (var div in divs)
{
addAttribute("class", Tuple.Create("styleDel", "styleIns"), op, div);
}
}
if (text.Contains(image))
{
var images = html.DocumentNode.Descendants().Where(t => t.Name == "img").ToList();
var imagefile = (op == Operation.INSERT) ? "image-ins" : "image-del";
var svg = "<img src='/Bundles/mco/images/" + imagefile + ".svg' class='svg' >";
foreach (var image in images)
{
addAttribute("class", Tuple.Create("imgDel", "imgIns"), op, image);
if (op != Operation.EQUAL)
{
image.ParentNode.InnerHtml = "<div class='img'>" + image.OuterHtml + "<br />" + svg + "</div>";
}
}
}
if (addedAttribute)
{
addedAttribute = false;
return(html.DocumentNode.OuterHtml);
}
}
switch (op)
{
case DiffMatchPatch.Operation.DELETE:
return("<del style=\"text-decoration: line-through;color: red;\">" + text + "</del>");
case DiffMatchPatch.Operation.INSERT:
return("<ins style=\"text-decoration: underline;color: green;\">" + text + "</ins>");
default:
return(text);
}
}
public DiffSeg(Operation op, string text)
{
this.op = op;
this.text = text;
text = text.Trim();
startTag = true;
if (text == null || text.Length == 0)
{
return;
}
if (text.IndexOf("<!--") == 0)
{
tagName = "<!--";
selfClosing = true;
tag = true;
}
else if (text[0] == '<')
{
tag = true;
tagName = "";
bool named = false;
foreach (var c in text)
{
if (!named)
{
if (c == '<')
{
continue;
}
if (c == '/')
{
if (tagName.Length > 0)
{
selfClosing = true;
named = true;
break;
}
else
{
startTag = false;
}
}
else if (c != ' ' && c != '>')
{
tagName += c;
}
else if ((c == ' ' && tagName.Length > 0) || c == '>')
{
named = true;
}
}
else
{
if (c == '/')
{
selfClosing = true;
break;
}
}
}
//These elements are *always* self closing, so we'll let them slide if they didn't put the "/"
if (SELF_CLOSING_TAGS.Contains(tagName))
{
selfClosing = true;
}
}
if (CanHaveChildren)
{
children = new List <DiffSeg>();
}
}