Bug 410201 - Make /help do something useful on non-browser-apps

r=ajvincent@gmail.com (Alex Vincent)
Venkman Only. NPOTDB.

extensions/venkman/locales/en-US/chrome/venkman.properties

@@ -332,6 +332,8 @@ msg.files.rec         = Files
 #msg.doc.popuphdr     = Popups
 #msg.doc.keyhdr       = Keys
 
+msg.help.hostproblem  = You're running Venkman in an application which doesn't have a browser. Therefore, we can't show you this help content. If you install Venkman in Firefox, SeaMonkey or Flock, you can copy this URL into the address bar to show the help: x-jsd:help . You can also use the help command with a parameter to get help information on a specific command.
+
 msg.note.console     = This command is available from the console.
 msg.note.noconsole    = This command is NOT available from the console.
 msg.note.needstack   = You must be stopped at a breakpoint to use this command.

extensions/venkman/resources/content/venkman-commands.js

@@ -1180,27 +1180,28 @@ function cmdHelp (e)
     var ary;
     if (!e.pattern)
     {
-        openTopWin ("x-jsd:help", "venkman-help");
+        if (!console.haveBrowser)
+        {
+            display(MSG_HELP_HOSTPROBLEM, MT_ERROR);
+            return false;
+        }
+        openTopWin("x-jsd:help", "venkman-help");
         return true;
     }
-    else
-    {
-        ary = console.commandManager.list (e.pattern, CMD_CONSOLE);
+
+    ary = console.commandManager.list(e.pattern, CMD_CONSOLE);
 
     if (ary.length == 0)
     {
-            display (getMsg(MSN_ERR_NO_COMMAND, e.pattern), MT_ERROR);
+        display(getMsg(MSN_ERR_NO_COMMAND, e.pattern), MT_ERROR);
         return false;
     }
 
     for (var i in ary)
     {
-            display (getMsg(MSN_FMT_USAGE, [ary[i].name, ary[i].usage]), 
-                     MT_USAGE);
-            display (ary[i].help, MT_HELP);
+        display(getMsg(MSN_FMT_USAGE, [ary[i].name, ary[i].usage]), MT_USAGE);
+        display(ary[i].help, MT_HELP);
     }
-    }
-
     return true;
 }