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// Some misc command-related plumbing used by the controller.


/**
 * A tiny wrapper class for super-simple command handlers.
 *
 * @param commandHandlerMap An object containing name/value pairs where
 *                          the name is command name (string) and value
 *                          is the function to execute for that command
 */
function PROT_CommandController(commandHandlerMap) {
  this.debugZone = "commandhandler";
  this.cmds_ = commandHandlerMap;
}

/**
 * @param cmd Command to query support for
 * @returns Boolean indicating if this controller supports cmd
 */
PROT_CommandController.prototype.supportsCommand = function(cmd) { 
  return (cmd in this.cmds_); 
}

/**
 * Trivial implementation
 *
 * @param cmd Command to query status of
 */
PROT_CommandController.prototype.isCommandEnabled = function(cmd) { 
  return true; 
}
  
/**
 * Execute a command
 *
 * @param cmd Command to execute
 */
PROT_CommandController.prototype.doCommand = function(cmd) {
  return this.cmds_[cmd](); 
}
 
/**
 * Trivial implementation
 */
PROT_CommandController.prototype.onEvent = function(cmd) { }