internal HtmlForm(HtmlObject element, string name, string action, HtmlFormMethod method, ContentType encType)
{
Element = element;
Name = name;
Action = action;
Method = method;
EncType = encType;
}
static IEnumerable <T> TableRowsCore <T>(HtmlObject table, Func <HtmlObject, IEnumerable <HtmlObject>, T> rowSelector)
{
// TODO https://www.w3.org/TR/html5/tabular-data.html#processing-model-1
var spans = new ArrayList <CellSpan>();
foreach (var e in
from g in table.ChildElements
where g.IsNamed("tbody") || g.IsNamed("thead") || g.IsNamed("tfoot") || g.IsNamed("tr")
from tr in g.IsNamed("tr")
? new[] { g } :
g.ChildElements.Where(e => e.IsNamed("tr"))
select new
{
Row = tr,
Cells = tr.ChildElements.Where(e => e.IsNamed("td") || e.IsNamed("th")).ToArray(),
})
{
var tds = e.Cells;
spans.EnsureCapacity(tds.Length);
var cells = new ArrayList <HtmlObject>();
cells.EnsureCapacity(tds.Length);
var i = 0;
foreach (var td in tds)
{
while (true)
{
var rspan = spans[i, CellSpan.Zero];
if (rspan.Rows == 0)
{
break;
}
i += rspan.Cols;
}
var colspan = int.TryParse(td.GetAttributeValue("colspan"), NumberStyles.Integer & ~NumberStyles.AllowLeadingSign, CultureInfo.InvariantCulture, out var cn) ? cn : 1;
var rowspan = int.TryParse(td.GetAttributeValue("rowspan"), NumberStyles.Integer & ~NumberStyles.AllowLeadingSign, CultureInfo.InvariantCulture, out var rn) ? rn : 1;
var span = colspan > 1 || rowspan > 1 ? new CellSpan(colspan, rowspan) : CellSpan.One;
spans[i] = span;
cells[i] = td;
i += span.Cols;
}
for (i = 0; i < spans.Count; i++)
{
var span = spans[i];
var rowspan = span.Rows - 1;
spans[i] = rowspan > 0 ? new CellSpan(span.Cols, rowspan) : CellSpan.Zero;
}
yield return(rowSelector(e.Row, cells.ToArray()));
}
}
public static IEnumerable <T> TableRows <T>(this HtmlObject table, Func <HtmlObject, IEnumerable <HtmlObject>, T> rowSelector)
{
if (table == null)
{
throw new ArgumentNullException(nameof(table));
}
if (!table.IsNamed("table"))
{
throw new ArgumentException($"Element is <{table.Name}> and not an HTML table.", nameof(table));
}
if (rowSelector == null)
{
throw new ArgumentNullException(nameof(rowSelector));
}
return(TableRowsCore(table, rowSelector));
}
public override IEnumerable <HtmlObject> QuerySelectorAll(string selector, HtmlObject context) => from node in (((HapHtmlObject)context)?.Node ?? _document.DocumentNode).QuerySelectorAll(selector) orderby node.StreamPosition select GetPublicObject(node);
public virtual HtmlObject QuerySelector(string selector, HtmlObject context) => QuerySelectorAll(selector, context).FirstOrDefault();
public abstract IEnumerable <HtmlObject> QuerySelectorAll(string selector, HtmlObject context);
