private static bool ElementIsItselfHidden(IDomElement el)
{
if (el.NodeNameID == HtmlData.tagINPUT && el.Type == "hidden")
{
return(true);
}
if (el.HasStyles)
{
if (el.Style["display"] == "none" || el.Style.NumberPart("opacity") == 0)
{
return(true);
}
double?wid = el.Style.NumberPart("width");
double?height = el.Style.NumberPart("height");
if (wid == 0 || height == 0)
{
return(true);
}
}
string widthAttr, heightAttr;
widthAttr = el.GetAttribute("width");
heightAttr = el.GetAttribute("height");
return(widthAttr == "0" || heightAttr == "0");
}
private static bool ElementIsItselfHidden(IDomElement el)
{
if (el.NodeNameID == HtmlData.tagINPUT && el.Type == "hidden")
{
return true;
}
if (el.HasStyles)
{
if (el.Style["display"] == "none" || el.Style.NumberPart("opacity") == 0)
{
return true;
}
double? wid = el.Style.NumberPart("width");
double? height = el.Style.NumberPart("height");
if (wid == 0 || height == 0)
{
return true;
}
}
string widthAttr, heightAttr;
widthAttr = el.GetAttribute("width");
heightAttr = el.GetAttribute("height");
return widthAttr == "0" || heightAttr == "0";
}
/// <summary>
/// Get the current value of the first element in the set of matched elements. When using Val()
/// to access an OPTION group with the "multiple" flag set, this method with return a comma-
/// separated string (rather than the array returned by jQuery) of each selected option. When
/// there is no "value" property on an option, the text returned for the value of each selected
/// option is the inner text of the OPTION element.
/// </summary>
///
/// <returns>
/// A string of the value.
/// </returns>
///
/// <url>
/// http://api.jquery.com/val/#val1
/// </url>
public string Val()
{
if (Length > 0)
{
IDomElement e = this.Elements.First();
switch (e.NodeNameID)
{
case HtmlData.tagTEXTAREA:
return(e.Value);
case HtmlData.tagINPUT:
string val = e.GetAttribute("value", String.Empty);
switch (e.GetAttribute("type", String.Empty))
{
case "radio":
case "checkbox":
if (String.IsNullOrEmpty(val))
{
val = "on";
}
break;
default:
break;
}
return(val);
case HtmlData.tagSELECT:
string result = String.Empty;
var sel = (HTMLSelectElement)e;
if (!sel.Multiple)
{
return(sel.Value);
}
else
{
var selList = sel.ChildElementsOfTag <IHTMLOptionElement>(HtmlData.tagOPTION);
result = String.Join(",", selList
.Where(item => item.HasAttribute("selected") && !item.Disabled)
.Select(item => item.Value ?? item.TextContent));
return(result);
}
case HtmlData.tagOPTION:
val = e.GetAttribute("value");
return(val ?? e.TextContent);
default:
return(e.GetAttribute("value", String.Empty));
}
}
else
{
return(null);
}
}
private bool IsValidOGNode(IDomElement elem)
{
if (!elem.HasAttribute("property"))
{
return(false);
}
return(elem.GetAttribute("property").StartsWith("og:"));
}
protected bool ElementIsItselfHidden(IDomElement el)
{
if (el.HasStyles)
{
if (el.Style["display"] == "none")
{
return(true);
}
double?wid = el.Style.NumberPart("width");
double?height = el.Style.NumberPart("height");
if (wid == 0 || height == 0)
{
return(true);
}
}
string widthAttr, heightAttr;
widthAttr = el.GetAttribute("width");
heightAttr = el.GetAttribute("height");
return(widthAttr == "0" || heightAttr == "0");
}
protected virtual bool HasRelNoFollow(IDomElement e)
{
return _config.IsRespectAnchorRelNoFollowEnabled && (e.HasAttribute("rel") && e.GetAttribute("rel").ToLower().Trim() == "nofollow");
}
private bool HasRelNoFollow(IDomElement e)
{
return _isRespectAnchorRelNoFollowEnabled && (e.HasAttribute("rel") && e.GetAttribute("rel").ToLower().Trim() == "nofollow");
}
private bool HasRelNoFollow(IDomElement e)
{
return(_isRespectAnchorRelNoFollowEnabled && (e.HasAttribute("rel") && e.GetAttribute("rel").ToLower().Trim() == "nofollow"));
}
protected virtual bool HasRelNoFollow(IDomElement e)
{
return(_config.IsRespectAnchorRelNoFollowEnabled && (e.HasAttribute("rel") && e.GetAttribute("rel").ToLower().Trim() == "nofollow"));
}
protected bool ElementIsItselfHidden(IDomElement el)
{
if (el.HasStyles)
{
if (el.Style["display"] == "none")
{
return true;
}
double? wid = el.Style.NumberPart("width");
double? height = el.Style.NumberPart("height");
if (wid == 0 || height == 0)
{
return true;
}
}
string widthAttr,heightAttr;
widthAttr = el.GetAttribute("width");
heightAttr = el.GetAttribute("height");
return widthAttr=="0" || heightAttr=="0";
}
private string ParseValueFromNode(IDomElement elem)
{
return(elem.GetAttribute("content", string.Empty));
}
private string ParseKeyFromNode(IDomElement elem)
{
return(elem.GetAttribute("property").Substring(3));
}
/// <summary>
/// True, if element has "rel" attribute == "nofollow"
/// </summary>
/// <param name="element"></param>
/// <returns></returns>
protected virtual bool HasRelNoFollow(IDomElement element)
{
return(Config.IsRespectAnchorRelNoFollowEnabled &&
element.HasAttribute(Rel) &&
element.GetAttribute(Rel).ToLower().Trim() == NoFollow);
}
public virtual string GetAttributeValue(string attributeName)
{
return(_domElement.GetAttribute(attributeName));
}
/// <summary>
/// Get the current value of the first element in the set of matched elements. When using Val()
/// to access an OPTION group with the "multiple" flag set, this method with return a comma-
/// separated string (rather than the array returned by jQuery) of each selected option. When
/// there is no "value" property on an option, the text returned for the value of each selected
/// option is the inner text of the OPTION element.
/// </summary>
///
/// <returns>
/// A string of the value.
/// </returns>
///
/// <url>
/// http://api.jquery.com/val/#val1
/// </url>
public string Val()
{
if (Length > 0)
{
IDomElement e = this.Elements.First();
switch (e.NodeNameID)
{
case HtmlData.tagTEXTAREA:
return(e.InnerText);
case HtmlData.tagINPUT:
string val = e.GetAttribute("value", String.Empty);
switch (e.GetAttribute("type", String.Empty))
{
case "radio":
case "checkbox":
if (String.IsNullOrEmpty(val))
{
val = "on";
}
break;
default:
break;
}
return(val);
case HtmlData.tagSELECT:
string result = String.Empty;
// TODO optgroup handling (just like the setter code)
//var options = Find("option");
//if (options.Length == 0)
//{
// return null;
//}
//foreach (IDomElement child in options)
//{
// bool disabled = child.HasAttribute("disabled")
// || (child.ParentNode.NodeNameID == HtmlData.tagOPTGROUP
// && child.ParentNode.HasAttribute("disabled"));
// if (child.HasAttribute("selected") && !disabled)
// {
// var optVal = child.GetAttribute("value");
// if (optVal == null)
// {
// optVal = child.Cq().Text();
// }
// result = result.ListAdd(optVal, ",");
// if (!e.HasAttribute("multiple"))
// {
// break;
// }
// }
//}
var sel = (HTMLSelectElement)e;
if (!sel.Multiple)
{
var opt = sel.SelectedItem;
result = opt != null?
opt.GetAttribute("value") ??
opt.InnerText:
"";
}
else
{
var selList = sel.ChildElementsOfTag <IHTMLOptionElement>(HtmlData.tagOPTION);
result = String.Join(",", selList
.Where(item => item.HasAttribute("selected") && !item.Disabled)
.Select(item => item.Value ?? item.InnerText));
}
return(result);
case HtmlData.tagOPTION:
val = e.GetAttribute("value");
return(val ?? e.InnerText);
default:
return(e.GetAttribute("value", String.Empty));
}
}
else
{
return(null);
}
}
public void WidgetIdTest(CrawlResult result, IDomElement widget)
{
PAssert.IsTrue(() => "nav".Equals(widget.GetAttribute("id")));
}
