Class: RiCal::Component

Inherits:
Object show all
Defined in:
lib/ri_cal/component.rb,
lib/ri_cal/component/todo.rb,
lib/ri_cal/component/alarm.rb,
lib/ri_cal/component/event.rb,
lib/ri_cal/component/journal.rb,
lib/ri_cal/component/calendar.rb,
lib/ri_cal/component/freebusy.rb,
lib/ri_cal/component/timezone.rb,
lib/ri_cal/component/timezone/daylight_period.rb,
lib/ri_cal/component/timezone/standard_period.rb,
lib/ri_cal/component/timezone/timezone_period.rb

Overview

  • ©2009 Rick DeNatale, All rights reserved. Refer to the file README.txt for the license

Defined Under Namespace

Classes: Alarm, Calendar, ComponentBuilder, Event, Freebusy, Journal, TZInfoTimezone, Timezone, Todo

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(parent = nil, &init_block) ⇒ Component

:nodoc:



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# File 'lib/ri_cal/component.rb', line 37

def initialize(parent=nil, &init_block) #:nodoc:
  @parent = parent
  if block_given?
    if init_block.arity == 1
      init_block.call(ComponentBuilder.new(self))
    else
      ComponentBuilder.new(self).instance_eval(&init_block)
    end
  end
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(selector, *args, &b) ⇒ Object

:nodoc:



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# File 'lib/ri_cal/component.rb', line 153

def method_missing(selector, *args, &b) #:nodoc:
  xprop_candidate = selector.to_s
  if (match = /^x_(.+)(=?)$/.match(xprop_candidate))
    if match[2] == "="
      add_x_property("x_#{match[1]}", *args)
    else
      x_properties[xprop_candidate]
    end
  else
    super
  end
end

Instance Attribute Details

#imported ⇒ Object

:nodoc:



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# File 'lib/ri_cal/component.rb', line 35

def imported
  @imported
end

Class Method Details

.entity_name ⇒ Object

:nodoc:



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# File 'lib/ri_cal/component/timezone.rb', line 152

def self.entity_name #:nodoc:
  "VTIMEZONE"
end

.from_parser(parser, parent) ⇒ Object

:nodoc:



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# File 'lib/ri_cal/component.rb', line 84

def self.from_parser(parser, parent) #:nodoc:
  entity = self.new(parent)
  entity.imported = true
  line = parser.next_separated_line
  while parser.still_in(entity_name, line)
    entity.process_line(parser, line)
    line = parser.next_separated_line
  end
  entity
end

.parse(io) ⇒ Object

:nodoc:



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# File 'lib/ri_cal/component.rb', line 95

def self.parse(io) #:nodoc:
  Parser.new(io).parse
end

.parse_string(string) ⇒ Object

:nodoc:



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# File 'lib/ri_cal/component.rb', line 103

def self.parse_string(string) #:nodoc:
  parse(StringIO.new(string))
end

Instance Method Details

#add_property_date_times_to(required_timezones, property) ⇒ Object

:nodoc:



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# File 'lib/ri_cal/component.rb', line 183

def add_property_date_times_to(required_timezones, property) #:nodoc:
  if property
    if Array === property
      property.each do |prop|
        prop.add_date_times_to(required_timezones)
      end
    else
      property.add_date_times_to(required_timezones)
    end
  end
end

#add_subcomponent(component) ⇒ Object

:nodoc:



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# File 'lib/ri_cal/component.rb', line 121

def add_subcomponent(component) #:nodoc:
  subcomponents[component.entity_name] << component
end

#add_x_property(name, prop) ⇒ Object

Add a n extended property



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# File 'lib/ri_cal/component.rb', line 149

def add_x_property(name, prop)
  x_properties[name] = prop
end

#alarms ⇒ Object

return an array of Alarm components within this component :nodoc: Alarms may be contained within Events, and Todos



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# File 'lib/ri_cal/component.rb', line 117

def alarms
  subcomponents["VALARM"]
end

#daylight ⇒ Object

:nodoc:



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# File 'lib/ri_cal/component/timezone.rb', line 160

def daylight #:nodoc:
  @subcomponents["DAYLIGHT"]
end

#default_tzid ⇒ Object

:nodoc:



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# File 'lib/ri_cal/component.rb', line 48

def default_tzid #:nodoc:
  if @parent
    @parent.default_tzid
  else
    PropertyValue::DateTime.default_tzid
  end
end

#entity_name ⇒ Object

:nodoc:



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# File 'lib/ri_cal/component.rb', line 111

def entity_name #:nodoc:
  self.class.entity_name
end

#export(stream = nil) ⇒ Object

Export this single component as an iCalendar component containing only this component and any required additional components (i.e. VTIMEZONES referenced from this component) if stream is nil (the default) then this method will return a string, otherwise stream should be an IO to which the iCalendar file contents will be written



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# File 'lib/ri_cal/component.rb', line 236

def export(stream=nil)
  wrapper_calendar = Calendar.new
  wrapper_calendar.add_subcomponent(self)
  wrapper_calendar.export(stream)
end

#export_prop_to(export_stream, name, prop) ⇒ Object

:nodoc:



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# File 'lib/ri_cal/component.rb', line 195

def export_prop_to(export_stream, name, prop) #:nodoc:
  if prop
    string = prop_string(name, prop)
    export_stream.puts(string) if string
  end
end

#export_subcomponent_to(export_stream, subcomponent) ⇒ Object

:nodoc:



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# File 'lib/ri_cal/component.rb', line 208

def export_subcomponent_to(export_stream, subcomponent) #:nodoc:
  subcomponent.each do |component|
    component.export_to(export_stream)
  end
end

#export_to(export_stream) ⇒ Object

Export this component to an export stream



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# File 'lib/ri_cal/component.rb', line 222

def export_to(export_stream)
  export_stream.puts("BEGIN:#{entity_name}")
  export_properties_to(export_stream)
  export_x_properties_to(export_stream)
  subcomponents.values.each do |sub|
    export_subcomponent_to(export_subcomponent_to, sub)
  end
  export_stream.puts("END:#{entity_name}")
end

#export_x_properties_to(export_stream) ⇒ Object

:nodoc:



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# File 'lib/ri_cal/component.rb', line 202

def export_x_properties_to(export_stream) #:nodoc:
  x_properties.each do |name, prop|
    export_stream.puts("#{name}:#{prop}")
  end
end

#find_timezone(identifier) ⇒ Object

:nodoc:



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# File 'lib/ri_cal/component.rb', line 56

def find_timezone(identifier) #:nodoc:
  if @parent
    @parent.find_timezone(identifier)
  else
    begin
      Calendar::TZInfoWrapper.new(TZInfo::Timezone.get(identifier), self)
    rescue ::TZInfo::InvalidTimezoneIdentifier => ex
      raise RiCal::InvalidTimezoneIdentifier.invalid_tzinfo_identifier(identifier)
    end
  end
end

#imported? ⇒ Boolean

:nodoc:

Returns:

  • (Boolean) 


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# File 'lib/ri_cal/component.rb', line 99

def imported? #:nodoc:
  imported
end

#initialize_copy(original) ⇒ Object

:nodoc:



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# File 'lib/ri_cal/component.rb', line 171

def initialize_copy(original) #:nodoc:
end

#last_before_local(period_array, time) ⇒ Object

:nodoc:



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# File 'lib/ri_cal/component/timezone.rb', line 184

def last_before_local(period_array, time) #:nodoc:
  candidates = period_array.map {|period|
    period.last_before_local(time)
  }
  result = candidates.max {|a, b| a.dtstart_property <=> b.dtstart_property}
  result
end

#last_before_utc(period_array, time) ⇒ Object

:nodoc:



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# File 'lib/ri_cal/component/timezone.rb', line 176

def last_before_utc(period_array, time) #:nodoc:
  candidates = period_array.map {|period|
    period.last_before_utc(time)
  }
  result = candidates.max {|a, b| a.dtstart_property <=> b.dtstart_property}
  result
end

#last_period(standard, daylight) ⇒ Object

:nodoc:



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# File 'lib/ri_cal/component/timezone.rb', line 164

def last_period(standard, daylight) #:nodoc:
  if standard
    if daylight
      standard.dtstart > daylight.dtstart ? standard : daylight
    else
      standard
    end
  else
    daylight
  end
end

#parse_subcomponent(parser, line) ⇒ Object

:nodoc:



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# File 'lib/ri_cal/component.rb', line 125

def parse_subcomponent(parser, line) #:nodoc:
  subcomponents[line[:value]] << parser.parse_one(line, self)
end

#process_line(parser, line) ⇒ Object

:nodoc:



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# File 'lib/ri_cal/component.rb', line 129

def process_line(parser, line) #:nodoc:
  if line[:name] == "BEGIN"
    parse_subcomponent(parser, line)
  else
    setter = self.class.property_parser[line[:name]]
    if setter
      send(setter, line)
    else
      self.add_x_property(line[:name], PropertyValue::Text.new(self, line))
    end
  end
end

#prop_string(prop_name, *properties) ⇒ Object

:nodoc:



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# File 'lib/ri_cal/component.rb', line 174

def prop_string(prop_name, *properties) #:nodoc:
  properties = properties.flatten.compact
  if properties && !properties.empty?
    properties.map {|prop| "#{prop_name}#{prop.to_s}"}.join("\n")
  else
    nil
  end
end

#standard ⇒ Object

:nodoc:



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# File 'lib/ri_cal/component/timezone.rb', line 156

def standard #:nodoc:
  @subcomponents["STANDARD"]
end

#subcomponent_class ⇒ Object

:nodoc:



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# File 'lib/ri_cal/component.rb', line 80

def subcomponent_class #:nodoc:
  {}
end

#subcomponents ⇒ Object

:nodoc:



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# File 'lib/ri_cal/component.rb', line 107

def subcomponents #:nodoc:
  @subcomponents ||= Hash.new {|h, k| h[k] = []}
end

#time_zone_for(ruby_object) ⇒ Object

:nodoc:



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# File 'lib/ri_cal/component.rb', line 76

def time_zone_for(ruby_object) #:nodoc:
  @parent.time_zone_for(ruby_object) #:nodoc:
end

#to_s ⇒ Object

return a string containing the rfc2445 format of the component



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# File 'lib/ri_cal/component.rb', line 215

def to_s
  io = StringIO.new
  export_to(io)
  io.string
end

#tz_info_source? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/ri_cal/component.rb', line 68

def tz_info_source?
  if @parent
    @parent.tz_info_source?
  else
    true
  end
end

#valid? ⇒ Boolean

Predicate to determine if the component is valid according to RFC 2445

Returns:

  • (Boolean) 


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# File 'lib/ri_cal/component.rb', line 167

def valid?
  !mutual_exclusion_violation
end

#x_properties ⇒ Object

return a hash of any extended properties, (i.e. those with a property name starting with “X-” representing an extension to the RFC 2445 specification)



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# File 'lib/ri_cal/component.rb', line 144

def x_properties
  @x_properties ||= {}
end