/// <summary>
/// Returns the HtmlAttribute.Value property of the HtmlAttribute instance as a string.
/// </summary>
/// <param name="htmlAttributeInstance">The instance of HtmlAttribute to get the property from</param>
/// <returns>The HtmlAttribute.Value property of the HtmlAttribute instance as a string</returns>
public static string HtmlAttribute_GetProperty_Value(object htmlAttributeInstance)
{
if (!HtmlAgilityPackWrapper._HtmlAttributeType.IsAssignableFrom(htmlAttributeInstance.GetType()))
{
throw new InvalidOperationException(HtmlAgilityPackWrapper._HtmlAttributeType + " is not assignable from htmlAttributeInstance (" + htmlAttributeInstance.GetType() + ")");
}
HtmlAgilityPackWrapper.InitializeIfNeeded();
return((string)HtmlAgilityPackWrapper._HtmlAttribute_Property_Value.GetValue(htmlAttributeInstance, null));
}
/// <summary>
/// Returns the HtmlNode.ChildNodes property of the HtmlNode instance as an IEnumerable.
/// Although the items in the returned collection are type object, they are actually HtmlNode.
/// </summary>
/// <param name="htmlNodeInstance">The instance of HtmlNode to get the property from</param>
/// <returns>The HtmlNode.ChildNodes property of the HtmlNode instance as an IEnumerable</returns>
public static IEnumerable <object> HtmlNode_GetProperty_ChildNodes(object htmlNodeInstance)
{
if (!HtmlAgilityPackWrapper._HtmlNodeType.IsAssignableFrom(htmlNodeInstance.GetType()))
{
throw new InvalidOperationException(HtmlAgilityPackWrapper._HtmlNodeType + " is not assignable from htmlNodeInstance (" + htmlNodeInstance.GetType() + ")");
}
HtmlAgilityPackWrapper.InitializeIfNeeded();
return(((System.Collections.IEnumerable)HtmlAgilityPackWrapper._HtmlNode_Property_ChildNodes.GetValue(htmlNodeInstance, null)).Cast <object>());
}
/// <summary>
/// Returns the result of calling the HtmlNode.SelectSingleNode(xpath) method on the HtmlNode instance.
/// Although the return type is object, it is actually an HtmlNode.
/// </summary>
/// <param name="htmlNodeInstance">The instance of HtmlNode to invoke SelectNodes(xpath) on</param>
/// <param name="xpath">The XPath expression.</param>
/// <returns>The result of calling the HtmlNode.SelectSingleNode(xpath) method on the HtmlNode instance</returns>
public static object HtmlNode_InvokeMethod_SelectSingleNode(object htmlNodeInstance, string xpath)
{
if (!HtmlAgilityPackWrapper._HtmlNodeType.IsAssignableFrom(htmlNodeInstance.GetType()))
{
throw new InvalidOperationException(HtmlAgilityPackWrapper._HtmlNodeType + " is not assignable from htmlNodeInstance (" + htmlNodeInstance.GetType() + ")");
}
HtmlAgilityPackWrapper.InitializeIfNeeded();
return(HtmlAgilityPackWrapper._HtmlNode_Method_SelectSingleNode.Invoke(htmlNodeInstance, new object[] { xpath }));
}
/// <summary>
/// Returns the result of calling the HtmlNode.SelectNodes(xpath) method on the HtmlNode instance as an IEnumerable.
/// Although the items in the returned collection are type object, they are actually HtmlNode.
/// </summary>
/// <param name="htmlNodeInstance">The instance of HtmlNode to invoke SelectNodes(xpath) on</param>
/// <param name="xpath">The XPath expression.</param>
/// <returns>The result of calling the HtmlNode.SelectNodes(xpath) method on the HtmlNode instance as an IEnumerable</returns>
public static IEnumerable <object> HtmlNode_InvokeMethod_SelectNodes(object htmlNodeInstance, string xpath)
{
if (!HtmlAgilityPackWrapper._HtmlNodeType.IsAssignableFrom(htmlNodeInstance.GetType()))
{
throw new InvalidOperationException(HtmlAgilityPackWrapper._HtmlNodeType + " is not assignable from htmlNodeInstance (" + htmlNodeInstance.GetType() + ")");
}
HtmlAgilityPackWrapper.InitializeIfNeeded();
return(((System.Collections.IEnumerable)HtmlAgilityPackWrapper._HtmlNode_Method_SelectNodes.Invoke(htmlNodeInstance, new object[] { xpath })).Cast <object>());
}
/// <summary>
/// Returns the HtmlDocument.DocumentNode property of the HtmlDocument instance.
/// Although the return type is object, it is actually an HtmlNode.
/// </summary>
/// <param name="htmlDocumentInstance">The instance of HtmlDocument to get the property from</param>
/// <returns>The HtmlDocument.DocumentNode property of the HtmlDocument instance</returns>
public static object HtmlDocument_GetProperty_DocumentNode(object htmlDocumentInstance)
{
if (!HtmlAgilityPackWrapper._HtmlDocumentType.IsAssignableFrom(htmlDocumentInstance.GetType()))
{
throw new InvalidOperationException(HtmlAgilityPackWrapper._HtmlDocumentType + " is not assignable from htmlDocumentInstance (" + htmlDocumentInstance.GetType() + ")");
}
HtmlAgilityPackWrapper.InitializeIfNeeded();
return(HtmlAgilityPackWrapper._HtmlDocument_Property_DocumentNode.GetValue(htmlDocumentInstance, null));
}
/// <summary>
/// Returns the result of calling the HtmlWeb.Load(url) method on the HtmlWeb instance.
/// Although the return type is object, it is actually an HtmlDocument.
/// </summary>
/// <param name="htmlWebInstance">The instance of HtmlWeb to invoke Load(url) on</param>
/// <param name="url">The requested URL</param>
/// <returns>The result of calling the HtmlWeb.Load(url) method on the HtmlWeb instance</returns>
public static object HtmlWeb_InvokeMethod_Load(object htmlWebInstance, string url)
{
if (!HtmlAgilityPackWrapper._HtmlWebType.IsAssignableFrom(htmlWebInstance.GetType()))
{
throw new InvalidOperationException(HtmlAgilityPackWrapper._HtmlWebType + " is not assignable from htmlWebInstance (" + htmlWebInstance.GetType() + ")");
}
HtmlAgilityPackWrapper.InitializeIfNeeded();
return(HtmlAgilityPackWrapper._HtmlWeb_Method_Load.Invoke(htmlWebInstance, new object[] { url }));
}
/// <summary>
/// Returns the HtmlNode.InnerText property of the HtmlNode instance as a string.
/// Any HTML characters are already decoded to ascii.
/// </summary>
/// <param name="htmlNodeInstance">The instance of HtmlNode to get the property from</param>
/// <returns>The HtmlNode.InnerText property of the HtmlNode instance as a string</returns>
public static string HtmlNode_GetProperty_InnerText(object htmlNodeInstance)
{
if (!HtmlAgilityPackWrapper._HtmlNodeType.IsAssignableFrom(htmlNodeInstance.GetType()))
{
throw new InvalidOperationException(HtmlAgilityPackWrapper._HtmlNodeType + " is not assignable from htmlNodeInstance (" + htmlNodeInstance.GetType() + ")");
}
HtmlAgilityPackWrapper.InitializeIfNeeded();
string innerTextString = (string)HtmlAgilityPackWrapper._HtmlNode_Property_InnerText.GetValue(htmlNodeInstance, null);
// Before returning, convert HTML characters to ASCII. For example, ' ==> '
return(System.Net.WebUtility.HtmlDecode(innerTextString));
}
/// <summary>
/// Initializes everything the wrapper needs if it hasn't already been initialized.
/// </summary>
/// <remarks>Extracts the DLL to disk if it doesn't exist, then loads the
/// assembly and plucks types, methods and properties that are needed.</remarks>
private static void InitializeIfNeeded()
{
if (!HtmlAgilityPackWrapper._IsInitialized)
{
string exeDir = System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().Location);
string htmlAgilityPackDLLFilename = @"HtmlAgilityPack.dll";
string htmlAgilityPackFullPathName = System.IO.Path.Combine(exeDir, htmlAgilityPackDLLFilename);
// Extract the DLL if missing or outdated
if (!System.IO.File.Exists(htmlAgilityPackFullPathName))
{
System.IO.File.WriteAllBytes(htmlAgilityPackFullPathName, OCTGNDeckConverter.Properties.Resources.HtmlAgilityPack);
}
else
{
System.Reflection.Assembly assembly = System.Reflection.Assembly.LoadFrom(htmlAgilityPackFullPathName);
Version ver = assembly.GetName().Version;
// Check the version of HtmlAgilityPack
if (ver.Major != 1 || ver.Minor != 4 || ver.Build != 6)
{
System.IO.File.WriteAllBytes(htmlAgilityPackFullPathName, OCTGNDeckConverter.Properties.Resources.HtmlAgilityPack);
}
}
if (System.IO.File.Exists(htmlAgilityPackFullPathName))
{
HtmlAgilityPackWrapper._HTMLAgilityPackAssembly = System.Reflection.Assembly.LoadFile(htmlAgilityPackFullPathName);
HtmlAgilityPackWrapper._HTMLAgilityPackTypes = HtmlAgilityPackWrapper._HTMLAgilityPackAssembly.GetTypes();
HtmlAgilityPackWrapper.InitializeHtmlWeb();
HtmlAgilityPackWrapper.InitializeHtmlDocument();
HtmlAgilityPackWrapper.InitializeHtmlNode();
HtmlAgilityPackWrapper.InitializeHtmlAttribute();
HtmlAgilityPackWrapper._IsInitialized = true;
}
else
{
throw new InvalidOperationException("HTMLAgilityPack.dll cannot be found. Ensure it is in the same directory, or reinstall the plugin.");
}
}
}
/// <summary>
/// Returns a new instance of HtmlWeb. Although the return type is object, it is actually an HtmlWeb.
/// </summary>
/// <returns>A new instance of HtmlWeb</returns>
public static object HtmlWeb_CreateInstance()
{
HtmlAgilityPackWrapper.InitializeIfNeeded();
return(Activator.CreateInstance(HtmlAgilityPackWrapper._HtmlWebType, new object[] { }));
}
