public ClickElement(Page page, XElement xel, int actionIndex)
: base(page, xel, actionIndex)
{
_xpaths = GetXPaths();
if (_xpaths.Count == 0
|| xel.Element("DestinationPage") == null || !Int32.TryParse(xel.Element("DestinationPage").Value, out _destinationPage))
{
throw new Exception("Error in ClickElement xml Action element.");
}
_startExprSep = GetStartExpSep();
_endExprSep = GetEndExpSep();
_nodeValueType = GetNodeValueType();
// ClickElement treba izvuci href iz targetiranog noda koji vodi na kliknuti link
// po defaultu bi trebao pocinjati sa hreaf=", i zavrsiti sa " ukoliko Start i End Expression separatori nisu navedeni
if (_startExprSep == null)
{
_startExprSep = new StartExpressionSeparator("href=\"", false, true);
}
if (_endExprSep == null)
{
_endExprSep = new EndExpressionSeparator("\"", false, true);
}
// isto tako po defaultu uzima NodevalueType OuterHtml ukoliko nije naveden
if (_nodeValueType == null)
_nodeValueType = NodeValueType.OuterHtml;
}
public GetElementValue(Page page, XElement xel, int actionIndex)
: base(page, xel, actionIndex)
{
if (xel.Element("FieldName") == null)
{
throw new Exception("Error in GetElementValue xml Action element, missing FieldName!");
}
_fieldName = xel.Element("FieldName").Value;
_predefinedValue = GetPredefinedValue();
if (_predefinedValue == null)
{
_xpaths = GetXPaths();
if (_xpaths.Count == 0)
{
throw new Exception("Error in GetElementValue xml Action element, missing XPaths!");
}
_nodeValueType = GetNodeValueType();
_startExprSep = GetStartExpSep();
_endExprSep = GetEndExpSep();
_lstReplacements = GetReplacements();
}
}
private List<string> _xpaths; // jel treba vise od jednog xpatha?! (se moze link na iducu straicu na nekoj od stranica pojavi u drugom xpathu?!)
#endregion Fields
#region Constructors
public PageList(Page page, XElement xel, int actionIndex)
: base(page, xel, actionIndex)
{
_xpaths = GetXPaths();
if (_xpaths.Count == 0)
{
throw new Exception("Error in PageList xml Action element. Missing XPath!");
}
// pronaci LoadPage element na ovoj stranici
List<XElement> actions = (from els in _page.Xdoc.Descendants("Action")
where Int32.Parse(els.Element("Page").Value) == _page.PageIndex
select els).ToList();
for (int i = 0; i < actions.Count; ++i)
{
if (actions[i].Element("ActionType").Value == ActionTypeKind.PagePlaceHolder.ToString())
{
_pagePlaceHolderIndex = i;
break;
}
}
if (_pagePlaceHolderIndex < 0)
{
throw new Exception("LoadPage action not found for current PageList action!");
}
_nodeValueType = GetNodeValueType();
_startExprSep = GetStartExpSep();
_endExprSep = GetEndExpSep();
// PageList treba izvuci href iz targetiranog noda koji vodi na iducu stranicu
// po defaultu bi trebao pocinjati sa hreaf=", i zavrsiti sa " ukoliko Start i End Expression separatori nisu navedeni
if (_startExprSep == null)
{
_startExprSep = new StartExpressionSeparator("href=\"", false, true);
}
if(_endExprSep == null)
{
_endExprSep = new EndExpressionSeparator("\"", false, true);
}
}
public string GetNodeValue(string xpath, NodeValueType nodeValueType,
StartExpressionSeparator startExprSep, EndExpressionSeparator endExprSep, List<Replacement> lstReplacements)
{
string retVal = null;
HtmlNode node = null;
xpath = xpath.Trim();
if (xpath == ".")
{
node = _anchorLstNodeColl[_anchorLstCurrIndex];
}
else
{
if (xpath.StartsWith("..")) // znaci da ide prema parentu po neki xpath axis (npr ../following-sibling ili ../preceding-sibling)
{
if (_anchorLstNodeColl == null)
{
return null;
}
xpath = _anchorLstNodeColl[_anchorLstCurrIndex].XPath + "/" + xpath; // u tom slucaju treba nadograditi postojeci
}
node = _htmlDoc.DocumentNode.SelectSingleNode(xpath);
// WORKAROUND za slcaj da uleti tbody kojeg obicno nema, ali ga recimo firefox voli dodavati
if (node == null && (xpath.Contains("/tbody[1]") || xpath.Contains("/tbody")))
{
xpath = xpath.Replace("/tbody[1]", string.Empty);
xpath = xpath.Replace("/tbody", string.Empty);
node = _htmlDoc.DocumentNode.SelectSingleNode(xpath);
}
}
if (node != null)
{
switch (nodeValueType)
{
case NodeValueType.InnerText:
retVal = node.InnerText;
break;
case NodeValueType.InnerHtml:
retVal = node.InnerHtml;
break;
case NodeValueType.OuterHtml:
retVal = node.OuterHtml;
break;
}
// 1. PROCESUIRANJE StartExpressionSeparatora i EndExpressionSeparatora
if (startExprSep != null)
{
if (!startExprSep.ValidateSeparator(retVal))
return null;
retVal = startExprSep.ProcessValue(retVal);
}
if (endExprSep != null)
{
if (!endExprSep.ValidateSeparator(retVal))
return null;
retVal = endExprSep.ProcessValue(retVal);
}
// 2. CISCENJE POVRATNE VRIJEDNOSTI
// dekodira web znakove kao sto su '<' i '>', brise visestruko pojavljivanje novih redaka, pretvara tabove u space i brise spaceove ili navodnike sa pocetka i kraja
retVal = HttpUtility.HtmlDecode(retVal);
retVal = retVal.Replace("\r\n", "\n");
retVal = retVal.Replace("\\r\\n", "\n");
retVal = retVal.Replace("\\n", "\n");
while (retVal.Contains("\n\n"))
{
retVal = retVal.Replace("\n\n", "\n");
}
retVal = retVal.Replace("\t", " ");
retVal = retVal.Replace("\\t", " ");
retVal = retVal.Trim();
retVal = retVal.Trim('"');
retVal = retVal.Trim('\'');
retVal = retVal.Trim();
// 3. PROVODENJE REPLACEMENTA
if(lstReplacements != null)
{
foreach (Replacement rep in lstReplacements)
{
retVal = rep.Replace(retVal);
}
}
}
return retVal;
}
public string GetNodeValue(List<string> xpaths, NodeValueType nodeValueType,
StartExpressionSeparator startExprSep, EndExpressionSeparator endExprSep, List<Replacement> lstReplacements)
{
string retVal = null;
foreach (string xpath in xpaths)
{
retVal = GetNodeValue(xpath, nodeValueType, startExprSep, endExprSep, lstReplacements);
if (retVal != null)
break;
}
return retVal;
}
