Module: Card::Env::LocationHistory

Included in:
Card::Env
Defined in:
lib/card/env.rb

Overview

session history helpers: we keep a history stack so that in the case of card removal we can crawl back up to the last un-removed location

Instance Method Summary collapse

Instance Method Details

#discard_locations_for(card) ⇒ Object 



88
89
90
91
92
93
94
95
96
 
# File 'lib/card/env.rb', line 88

def discard_locations_for(card)
  # quoting necessary because cards have things like "+*" in the names..
  session[:history] = location_history.reject do |loc|
    if url_key = url_key_for_location(loc)
      url_key.to_name.key == card.key
    end
  end.compact
  session[:previous_location] = nil
end

#interrupted_action ⇒ Object 



102
103
104
 
# File 'lib/card/env.rb', line 102

def interrupted_action
  session.delete :interrupted_action
end

#location_history ⇒ Object

include Card::Location



68
69
70
71
72
73
74
75
 
# File 'lib/card/env.rb', line 68

def location_history
  #warn "sess #{session.class}, #{session.object_id}"
  session[:history] ||= [Card::Location.card_path('')]
  if session[:history]
    session[:history].shift if session[:history].size > 5
    session[:history]
  end
end

#previous_location ⇒ Object 



84
85
86
 
# File 'lib/card/env.rb', line 84

def previous_location
  session[:previous_location] ||= location_history.last if location_history
end

#save_interrupted_action(uri) ⇒ Object 



98
99
100
 
# File 'lib/card/env.rb', line 98

def save_interrupted_action uri
  session[:interrupted_action] = uri
end

#save_location(card) ⇒ Object 



77
78
79
80
81
82
 
# File 'lib/card/env.rb', line 77

def save_location card
  return if Env.ajax? || !Env.html? || !card.known? || (card.codename == 'signin')
  discard_locations_for card
  session[:previous_location] = Card::Location.card_path card.cardname.url_key
  location_history.push previous_location
end

#url_key_for_location(location) ⇒ Object 



106
107
108
 
# File 'lib/card/env.rb', line 106

def url_key_for_location(location)
  location.match( /\/([^\/]*$)/ ) ? $1 : nil
end