### Home Classes Methods

### In Files

- lib/xmpp4r/version/helper/responder.rb

### Parent

Object

### Methods

- ::new
- #add_version_callback
- #iq_callback

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No matching classes.

# Jabber::Version::Responder

A class to answer version requests using IqQueryVersion

If you don't need the flexibility of dynamic responses with the callback you can register with add_version_callback, take a look at SimpleResponder

### Public Class Methods

new(stream) click to toggle source

Initialize a new version responder

Registers it's callback (prio = 180, ref = self)

stream

Stream

  Where to register callback handlers

    # File lib/xmpp4r/version/helper/responder.rb, line 22
    def initialize(stream)
      @stream = stream
      @versioncbs = CallbackList.new

      stream.add_iq_callback(180, self) { |iq|
        iq_callback(iq)
      }
    end

### Public Instance Methods

add_version_callback(priority = 0, ref = nil, &block) click to toggle source

Add a callback for Iq stanzas with IqQueryVersion

First argument passed to block is the Iq stanza, second argument is a block, which can be called with software name, version and os

Example:

    my_version_helper.add_version_callback { |iq,block|
      block.call('Cool client', '6.0', 'Cool OS')
    }

    # File lib/xmpp4r/version/helper/responder.rb, line 42
    def add_version_callback(priority = 0, ref = nil, &block)
      @versioncbs.add(priority, ref, block)
    end

iq_callback(iq) click to toggle source

<iq/> callback handler to answer Software Version queries (registered by constructor and used internally only)

Used internally

    # File lib/xmpp4r/version/helper/responder.rb, line 51
    def iq_callback(iq)
      if iq.type == :get
        if iq.query.kind_of?(IqQueryVersion)
          replyblock = lambda { |name,version,os|
            answer = iq.answer
            answer.type = :result
            answer.query.set_iname(name).set_version(version).set_os(os)

            @stream.send(answer)
            true
          }
          @versioncbs.process(iq, replyblock)
        else
          false
        end
      else
        false
      end
    end

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