irc/TechBot/TechBot.Library/WmCommand.cs

   1 using System;
   2 using System.Xml;
   3
   4 namespace TechBot.Library
   5 {
   6         public class WMCommand : XmlCommand
   7         {
   8         public WMCommand(TechBotService techBot)
   9             : base(techBot)
  10                 {
  11                 }
  12
  13         public override string XmlFile
  14         {
  15             get { return Settings.Default.WMXml; }
  16         }
  17
  18         public override string[] AvailableCommands
  19         {
  20             get { return new string[] { "wm" }; }
  21         }
  22
  23                 public override void Handle(MessageContext context,
  24                                    string commandName,
  25                                    string parameters)
  26                 {
  27                         string wmText = parameters;
  28                         if (wmText.Equals(String.Empty))
  29                         {
  30                                 TechBot.ServiceOutput.WriteLine(context,
  31                                                         "Please provide a valid window message value or name.");
  32                                 return;
  33                         }
  34
  35                         NumberParser np = new NumberParser();
  36                         long wm = np.Parse(wmText);
  37                         string output;
  38                         if (np.Error)
  39                         {
  40                                 // Assume "!wm <name>" form.
  41                                 output = GetWmNumber(wmText);
  42                         }
  43                         else
  44                         {
  45                                 output = GetWmDescription(wm);
  46                         }
  47
  48                         if (output != null)
  49                         {
  50                 TechBot.ServiceOutput.WriteLine(context,
  51                                                         String.Format("{0} is {1}.",
  52                                                                       wmText,
  53                                                                       output));
  54                         }
  55                         else
  56                         {
  57                 TechBot.ServiceOutput.WriteLine(context,
  58                                                         String.Format("I don't know about window message {0}.",
  59                                                                       wmText));
  60                         }
  61                 }
  62
  63         public override string Help()
  64                 {
  65                         return "!wm <value> or !wm <name>";
  66                 }
  67
  68                 private string GetWmDescription(long wm)
  69                 {
  70                         XmlElement root = base.m_XmlDocument.DocumentElement;
  71                         XmlNode node = root.SelectSingleNode(String.Format("WindowMessage[@value='{0}']",
  72                                                                            wm));
  73                         if (node != null)
  74                         {
  75                                 XmlAttribute text = node.Attributes["text"];
  76                                 if (text == null)
  77                                         throw new Exception("Node has no text attribute.");
  78                                 return text.Value;
  79                         }
  80                         else
  81                                 return null;
  82                 }
  83
  84                 private string GetWmNumber(string wmName)
  85                 {
  86                         XmlElement root = base.m_XmlDocument.DocumentElement;
  87                         XmlNode node = root.SelectSingleNode(String.Format("WindowMessage[@text='{0}']",
  88                                                                            wmName));
  89                         if (node != null)
  90                         {
  91                                 XmlAttribute value = node.Attributes["value"];
  92                                 if (value == null)
  93                                         throw new Exception("Node has no value attribute.");
  94                                 return value.Value;
  95                         }
  96                         else
  97                                 return null;
  98                 }
  99         }
 100 }