Class: IRC::Client::Dispatcher::EventDispatcher

Inherits:
Object
  • Object
show all
Defined in:
lib/failirc/client/dispatcher/eventdispatcher.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(dispatcher) ⇒ EventDispatcher

Returns a new instance of EventDispatcher.



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# File 'lib/failirc/client/dispatcher/eventdispatcher.rb', line 32

def initialize (dispatcher)
    @client     = dispatcher.client
    @dispatcher = dispatcher
    @handling   = ThreadSafeHash.new

    @aliases = newAliases
    @events  = newEvents
end

Instance Attribute Details

#aliases ⇒ Object (readonly)

Returns the value of attribute aliases.



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# File 'lib/failirc/client/dispatcher/eventdispatcher.rb', line 30

def aliases
  @aliases
end

#client ⇒ Object (readonly)

Returns the value of attribute client.



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# File 'lib/failirc/client/dispatcher/eventdispatcher.rb', line 30

def client
  @client
end

#dispatcher ⇒ Object (readonly)

Returns the value of attribute dispatcher.



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# File 'lib/failirc/client/dispatcher/eventdispatcher.rb', line 30

def dispatcher
  @dispatcher
end

#events ⇒ Object (readonly)

Returns the value of attribute events.



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# File 'lib/failirc/client/dispatcher/eventdispatcher.rb', line 30

def events
  @events
end

#handling ⇒ Object (readonly)

Returns the value of attribute handling.



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# File 'lib/failirc/client/dispatcher/eventdispatcher.rb', line 30

def handling
  @handling
end

Instance Method Details

#alias(chain, symbol, regex) ⇒ Object 



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# File 'lib/failirc/client/dispatcher/eventdispatcher.rb', line 144

def alias (chain, symbol, regex)
    if !regex
        @aliases[chain].delete(symbol)
    elsif !regex.class == Regexp
        raise 'You have to alias to a Regexp.'
    else
        @aliases[chain][symbol] = regex
    end
end

#dispatch(chain, server, string, deep = false) ⇒ Object 



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# File 'lib/failirc/client/dispatcher/eventdispatcher.rb', line 73

def dispatch (chain, server, string, deep=false)
    if !server
        return
    end

    handle(:start, chain, deep, server)

    event  = Event.new(self, chain, server, string)
    result = string

    @events[:pre].each {|callback|
        event.special = :pre

        if callback.call(event, server, string) == false
            handle(:stop, chain, deep, server)
            return false
        end
    }

    if !event.types.empty?
        event.special = nil

        event.callbacks.each {|callback|
            begin
                if callback.call(server, string) == false
                    handle(:stop, chain, deep, server)
                    return false
                end
            rescue Exception => e
                self.debug e
            end
        }
    elsif chain == :input
        @events[:default].each {|callback|
            event.special = :default

            if callback.call(event, server, string) == false
                handle(:stop, chain, deep, server)
                return false
            end
        }
    end

    @events[:post].each {|callback|
        event.special = :post

        if callback.call(event, server, string) == false
            handle(:stop, chain, deep, server)
            return false
        end
    }

    handle(:stop, chain, deep, server)

    return result
end

#execute(event, *args) ⇒ Object 



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# File 'lib/failirc/client/dispatcher/eventdispatcher.rb', line 130

def execute (event, *args)
    if @events[:custom][event]
        @events[:custom][event].each {|callback|
            begin
                if callback.method.call(*args) == false
                    return false
                end
            rescue Exception => e
                self.debug e
            end
        }
    end
end

#handle(what, chain, deep, server) ⇒ Object 



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# File 'lib/failirc/client/dispatcher/eventdispatcher.rb', line 61

def handle (what, chain, deep, server)
    if chain != :input || deep
        return
    end

    if what == :start
        @handling[server.socket] = true
    else
        @handling.delete(server.socket)
    end
end

#newAliases ⇒ Object 



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# File 'lib/failirc/client/dispatcher/eventdispatcher.rb', line 41

def newAliases
    Hash[
        :input  => {},
        :output => {},
    ]
end

#newEvents ⇒ Object 



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# File 'lib/failirc/client/dispatcher/eventdispatcher.rb', line 48

def newEvents
    Hash[
        :pre     => [],
        :post    => [],
        :default => [],

        :custom => {},

        :input  => {},
        :output => {}
    ]
end

#register(chain, type, callback, priority = 0) ⇒ Object 



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# File 'lib/failirc/client/dispatcher/eventdispatcher.rb', line 154

def register (chain, type, callback, priority=0)
    if !type
        events = @events[chain]

        if !events
            events = @events[chain] = []
        end
    else
        if @aliases[chain]
            if @aliases[chain][type]
                type = @aliases[chain][type]
            end
        end

        if !@events[chain]
            @events[chain] = {}
        end

        events = @events[chain][type]

        if !events
            events = @events[chain][type] = []
        end
    end

    if !callback
        events.clear
    elsif callback.is_a?(Array)
        callback.each {|callback|
            register(chain, type, callback)
        }
    else
        if callback.is_a?(Event::Callback)
            events.push(callback)
        else
            events.push(Event::Callback.new(callback, priority))
        end
    end

    events.sort! {|a, b|
        a.priority <=> b.priority
    }
end