Class: Alexandria::Preferences

Inherits:
Object
  • Object
show all
Includes:
Logging, Singleton
Defined in:
lib/alexandria/preferences.rb,
lib/alexandria/default_preferences.rb

Constant Summary collapse

APP_DIR = 
'/apps/alexandria'
HTTP_PROXY_DIR = 
'/system/http_proxy'
HTTP_PROXY_MODE = 
'/system/proxy/mode'
URL_HANDLERS_DIR = 
'/desktop/gnome/url-handlers'
GCONFTOOL = 
'gconftool-2'
DEFAULT_VALUES = 
{
  "position" => [0, 0],
  "size" => [640, 480],
  "maximized" => false,
  "sidepane_position" => 140,
  "view_as" => 0,
  "arrange_icons_mode" => 0,
  "reverse_icons" => false,
  "barcode_scanner" => "CueCat",
  "play_scanning_sound" => true,
  "play_scan_sound" => true,
  "toolbar_visible" => true,
  "sidepane_visible" => true,
  "statusbar_visible" => true,
  "col_authors_visible" => true,
  "col_edition_visible" => true,
  "col_isbn_visible" => true,
  "col_publisher_visible" => true,
  "col_publish_date_visible" => true,
  "col_rating_visible" => true,
  "col_redd_visible" => true,
  "col_own_visible" => true,
  "col_want_visible" => true,
  "cols_width" => "{}",
  "providers_priority" => ["Amazon", "BarnesAndNoble", "AdLibris", "DeaStore", "Proxis", "Thalia", "Siciliano", "WorldCat", "MCU", "LOC", "BL", "SBN"],
  "view_advanced_settings" => false
}

Instance Method Summary collapse

Methods included from Logging

included, #log

Constructor Details

#initialize ⇒ Preferences

Returns a new instance of Preferences.



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# File 'lib/alexandria/preferences.rb', line 38

def initialize
  @alexandria_settings = {}
  @changed_settings = Set.new

  @url_handlers_loaded = false
  @http_command = nil
  @mailto_command = nil

  @http_proxy_loaded = false
  @use_http_proxy = false
  @proxy_host = nil
  @proxy_port = nil
  @proxy_user = nil
  @proxy_password = nil

  load_alexandria_settings
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(id, *args) ⇒ Object 



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# File 'lib/alexandria/preferences.rb', line 72

def method_missing(id, *args)
  method = id.id2name
  if (match = /(.*)=$/.match(method))
    if args.length != 1
      raise "Set method #{method} should be called with " \
        "only one argument (was called with #{args.length})"
    end
    variable_name = match[1]
    new_value = args.first
    generic_setter(variable_name, new_value)
  else
    unless args.empty?
      raise "Get method #{method} should be called " \
        "without argument (was called with #{args.length})"
    end
    generic_getter(method)
  end
end

Instance Method Details

#http_proxy_config ⇒ Object 



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# File 'lib/alexandria/preferences.rb', line 56

def http_proxy_config
  load_http_proxy_settings unless @http_proxy_loaded
  if @use_http_proxy && @proxy_host && @proxy_port
    [@proxy_host, @proxy_port, @proxy_user, @proxy_password]
  end
end

#remove_preference(variable_name) ⇒ Object 



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# File 'lib/alexandria/preferences.rb', line 91

def remove_preference(variable_name)
  @alexandria_settings.delete(variable_name)
  @changed_settings << variable_name
end

#save! ⇒ Object 



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# File 'lib/alexandria/preferences.rb', line 63

def save!
  log.debug { 'preferences save!' }
  @changed_settings.each do |variable_name|
    log.debug { "saving preference #{variable_name} / #{@alexandria_settings[variable_name].class}" }
    generic_save_setting(variable_name, @alexandria_settings[variable_name])
  end
  @changed_settings.clear
end