Bug 172094 - Add a preference for browser-focus code.

ChatZilla only.
r=samuel@sieb.net

extensions/irc/xul/content/commands.js

@@ -1682,7 +1682,8 @@ function cmdGotoURL(e)
         return;
     }
 
-    window.focus();
+    if (client.prefs["link.focus"])
+        window.focus();
     if (e.command.name == "goto-url-newtab")
     {
         if (client.host == "Mozilla") {

extensions/irc/xul/content/prefs.js

@@ -119,6 +119,7 @@ function initPrefs()
          ["initialURLs",        [],       "startup.initialURLs"],
          ["initialScripts",     [getURLSpecFromFile(scriptPath.path)],
                                           "startup.initialScripts"],
+         ["link.focus",         true,     "global.links"],
          ["log",                false,                                  ".log"],
          ["logFileName",        makeLogNameClient,                      ".log"],
          ["logFile.client",     "client.$y-$m-$d.log",                  ".log"],

extensions/irc/xul/locale/en-US/chatzilla.properties

@@ -1086,6 +1086,8 @@ pref.initialURLs.label          = Auto-connect URLs
 pref.initialURLs.help           = A list of IRC URLs that Chatzilla should connect to (load) when starting. These will not be loaded if Chatzilla is started because of a URL that goes somewhere (e.g. irc://moznet/).
 pref.initialScripts.label       = Auto-load scripts
 pref.initialScripts.help        = When Chatzilla starts, it loads all the scripts listed here. If an item is a directory, however, it loads "init.js" from that directory, and any subdirectory.
+pref.link.focus.label           = Focus browser when opening links
+pref.link.focus.help            = Moves the focus to the browser window when opening URLs from ChatZilla.
 pref.log.label                  = Log this view
 pref.log.help                   = Makes Chatzilla log this view. The log file is usually stored in your profile, which can be overriden with "Profile path" (for the base path) or "Log file name" for a specific view's log.
 pref.logFileName.label          = Log file name