Class: Roda::Component::Events

Inherits:
Struct
  • Object
show all
Defined in:
lib/roda/component/events.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#component_opts ⇒ Object

Returns the value of attribute component_opts

Returns:

  • (Object) —

    the current value of component_opts



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# File 'lib/roda/component/events.rb', line 10

def component_opts
  @component_opts
end

#klass ⇒ Object

Returns the value of attribute klass

Returns:

  • (Object) —

    the current value of klass



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# File 'lib/roda/component/events.rb', line 10

def klass
  @klass
end

#request ⇒ Object

Returns the value of attribute request

Returns:

  • (Object) —

    the current value of request



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# File 'lib/roda/component/events.rb', line 10

def request
  @request
end

#scope ⇒ Object

Returns the value of attribute scope

Returns:

  • (Object) —

    the current value of scope



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# File 'lib/roda/component/events.rb', line 10

def scope
  @scope
end

Instance Method Details

#on(name, options = {}, form_klass = false, extra_opts = false, &block) ⇒ Object 



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# File 'lib/roda/component/events.rb', line 11

def on name, options = {}, form_klass = false, extra_opts = false, &block
  options = '' if options.empty? && (name.to_s == 'history_change' || name.to_s == 'ready')

  if client? && options.is_a?(String)
    class_name   = klass._name
    class_events = (events[class_name] ||= {})
    event        = (class_events[:_jquery_events] ||= [])
    event        << [block, class_name, options, form_klass, extra_opts, name]
  elsif options.is_a?(Hash)
    limit_if = options.delete(:if) || []
    limit_if = [limit_if] unless limit_if.is_a? Array

    class_name   = options.delete(:for) || klass._name
    class_events = (events[class_name] ||= {})
    event        = (class_events[name.to_s] ||= [])

    # remove the type, if we have an on if and it isn't in the engine_type
    if limit_if.any? && !limit_if.include?(engine_type.to_sym)
      block = Proc.new {}
    end

    event << [block, klass._name, options]
  end
end

#trigger(name, options = {}) ⇒ Object 



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# File 'lib/roda/component/events.rb', line 112

def trigger name, options = {}
  content = ''
  e = events[klass._name]

  return unless e

  (e[name.to_s] || []).each do |event|
    block, comp, opts = event

    if !opts[:socket]
      response = Component::Instance.new(component(comp), scope).instance_exec options, &block

      if response.is_a? Roda::Component::DOM
        content = response.to_xml
      else
        content = response
      end
    else
      $faye.publish("/components/#{klass._name}", {
        name: klass._name,
        type: 'event',
        event_type: 'call',
        event_method: name.to_s,
        data: options
      })
    end
  end

  content
end

#trigger_jquery_events ⇒ Object 



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# File 'lib/roda/component/events.rb', line 36

def trigger_jquery_events
  return unless e = events[klass._name]

  vip_list = ['history_change']

  j_events = (e[:_jquery_events] || [])
  j_events = j_events.sort_by do |x|
    [vip_list.index(x.last.to_s) || vip_list.length, j_events.index(x)]
  end

  j_events.each do |event|
    block, comp, selector, form_klass, opts, name = event

    opts = {} unless opts

    name = name.to_s

    case name.to_s
    when 'ready'
      el = Element.find(selector != '' ? selector : 'body')

      Component::Instance.new(component(comp), scope).instance_exec el, &block
    when 'history_change'
      $window.history.change do |he|
        Component::Instance.new(component(comp), scope).instance_exec he, &block
      end
    when 'form'
      warn 'missing form class option' unless form_klass

      el = Element.find(selector)

      el.on :submit do |evt|
        evt.prevent_default

        params = {}

        # loop through all the forum values
        el.serialize_array.each do |row|
          field, _ = row

          # we need to make it native to access it like ruby
          field    = Native(field)
          name     = field['name']
          value    = field['value']

          params[name] = value
        end

        params_obj = {}

        params.each do |param, value|
          keys = param.gsub(/[^a-z0-9_]/, '|').gsub(/\|\|/, '|').gsub(/\|$/, '').split('|')
          params_obj = params_obj.deep_merge keys.reverse.inject(value) { |a, n| { n => a } }
        end

        opts[:dom] = el

        if opts && key = opts[:key]
          form = form_klass.new params_obj[key], opts
        else
          form = form_klass.new params_obj, opts
        end

        el.find(opts[:error_selector] || '.field-error').remove

        Component::Instance.new(component(comp), scope).instance_exec form, evt.current_target, evt, &block
      end
    else
      Document.on name, selector do |evt|
        el = evt.current_target
        Component::Instance.new(component(comp), scope).instance_exec el, evt, &block
      end
    end
  end
end