Bug 920801 - Port chat/ changes from Instantbird to comm-central - 6 - Bio 851 - Twitter commands, r=aleth,fqueze.

chat/locales/en-US/twitter.properties

@@ -107,3 +107,6 @@ tooltip.listed_count=Listed
 #  These are used to turn true/false values into a yes/no response.
 yes=Yes
 no=No
+
+command.follow=%S <username>[ <username>]*: Start following a user / users.
+command.unfollow=%S <username>[ <username>]*: Stop following a user / users.

chat/protocols/irc/ircCommands.jsm

@@ -108,6 +108,8 @@ function ctcpCommand(aConv, aTarget, aCommand, aMsg) {
   return true;
 }
 
+// Replace the command name in the help string so translators do not attempt to
+// translate it.
 var commands = [
   {
     name: "action",

chat/protocols/twitter/twitter.js

@@ -1055,7 +1055,12 @@ Account.prototype = {
   }
 };
 
-function TwitterProtocol() { }
+// Shortcut to get the JavaScript account object.
+function getAccount(aConv) aConv.wrappedJSObject._account;
+
+function TwitterProtocol() {
+  this.registerCommands();
+}
 TwitterProtocol.prototype = {
   __proto__: GenericProtocolPrototype,
   get name() "Twitter",
@@ -1064,6 +1069,34 @@ TwitterProtocol.prototype = {
   options: {
     "track": {get label() _("options.track"), default: ""}
   },
+  // Replace the command name in the help string so translators do not attempt
+  // to translate it.
+  commands: [
+    {
+      name: "follow",
+      get helpString() _("command.follow", "follow"),
+      run: function(aMsg, aConv) {
+        aMsg = aMsg.trim();
+        if (!aMsg)
+          return false;
+        let account = getAccount(aConv);
+        aMsg.split(" ").forEach(account.follow, account);
+        return true;
+      }
+    },
+    {
+      name: "unfollow",
+      get helpString() _("command.unfollow", "unfollow"),
+      run: function(aMsg, aConv) {
+        aMsg = aMsg.trim();
+        if (!aMsg)
+          return false;
+        let account = getAccount(aConv);
+        aMsg.split(" ").forEach(account.stopFollowing, account);
+        return true;
+      }
+    }
+  ],
   getAccount: function(aImAccount) new Account(this, aImAccount),
   classID: Components.ID("{31082ff6-1de8-422b-ab60-ca0ac0b2af13}")
 };