reactos/irc/TechBot/TechBot.Library/WmCommand.cs

105 lines
2.6 KiB
C#
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using System;
using System.Xml;
namespace TechBot.Library
{
public class WmCommand : BaseCommand, ICommand
{
private IServiceOutput serviceOutput;
private string wmXml;
private XmlDocument wmXmlDocument;
public WmCommand(IServiceOutput serviceOutput,
string wmXml)
{
this.serviceOutput = serviceOutput;
this.wmXml = wmXml;
wmXmlDocument = new XmlDocument();
wmXmlDocument.Load(wmXml);
}
public bool CanHandle(string commandName)
{
return CanHandle(commandName,
new string[] { "wm" });
}
public void Handle(MessageContext context,
string commandName,
string parameters)
{
string wmText = parameters;
if (wmText.Equals(String.Empty))
{
serviceOutput.WriteLine(context,
"Please provide a valid window message value or name.");
return;
}
NumberParser np = new NumberParser();
long wm = np.Parse(wmText);
string output;
if (np.Error)
{
// Assume "!wm <name>" form.
output = GetWmNumber(wmText);
}
else
{
output = GetWmDescription(wm);
}
if (output != null)
{
serviceOutput.WriteLine(context,
String.Format("{0} is {1}.",
wmText,
output));
}
else
{
serviceOutput.WriteLine(context,
String.Format("I don't know about window message {0}.",
wmText));
}
}
public string Help()
{
return "!wm <value> or !wm <name>";
}
private string GetWmDescription(long wm)
{
XmlElement root = wmXmlDocument.DocumentElement;
XmlNode node = root.SelectSingleNode(String.Format("WindowMessage[@value='{0}']",
wm));
if (node != null)
{
XmlAttribute text = node.Attributes["text"];
if (text == null)
throw new Exception("Node has no text attribute.");
return text.Value;
}
else
return null;
}
private string GetWmNumber(string wmName)
{
XmlElement root = wmXmlDocument.DocumentElement;
XmlNode node = root.SelectSingleNode(String.Format("WindowMessage[@text='{0}']",
wmName));
if (node != null)
{
XmlAttribute value = node.Attributes["value"];
if (value == null)
throw new Exception("Node has no value attribute.");
return value.Value;
}
else
return null;
}
}
}