Module: StatefulLink::Helper

Defined in:
lib/stateful_link/helper.rb

Overview

:doc:

Instance Method Summary collapse

Instance Method Details

Generates stateful link to something.

Options:

:inactive - template of inactive state (block or string).
:active - template of active state.
:chosen - template of chosen state.
:state - state (action_state called if none) - block, symbol or boolean

Any option may be proc.

Example:

stateful_link_to("foos#index", "bars#index", 
  :active => "<li class='active'>Good!</li>", 
  :chosen => "<li class='chosen'>#{link_to(...)}</li>"
)



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# File 'lib/stateful_link/helper.rb', line 19

def stateful_link_to(*args)
  options = args.extract_options!
  active = args.first
  chosen = args.second
  state = options[:state]
  state = proc { action_state(active, chosen) } if state.nil?
  state = state.is_a?(Proc) ? instance_exec(&state) : state
  state = :active if state == true
  state = :inactive if state == false
  current = options[state]
  current.is_a?(Proc) ? instance_exec(&current) : current
end