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The Git repository is here.
- Revision:
- 15
- Log:
Attempt to update Typo to a Typo SVN HEAD release from around the
time the prototype installation was set up on the RISC OS Open Limited
web site. Timestamps place this at 04-Jul so a revision from 05-Jul or
earlier was pulled and copied over the 2.6.0 tarball stable code.
- Author:
- adh
- Date:
- Sat Jul 22 23:27:35 +0100 2006
- Size:
- 1743 Bytes
| 1 | module ConfigManager |
| 2 | def self.append_features(base) |
| 3 | super |
| 4 | base.extend(ClassMethods) |
| 5 | end |
| 6 | |
| 7 | module ClassMethods |
| 8 | def fields |
| 9 | @fields ||= Hash.new { Item.new } |
| 10 | end |
| 11 | |
| 12 | def setting(name, type=:object, default=nil) |
| 13 | item = Item.new |
| 14 | item.name, item.ruby_type, item.default = name.to_s, type, default |
| 15 | fields[name.to_s] = item |
| 16 | add_setting_accessor(item) |
| 17 | end |
| 18 | |
| 19 | def default_for(key) |
| 20 | fields[key.to_s].default |
| 21 | end |
| 22 | |
| 23 | private |
| 24 | |
| 25 | def add_setting_accessor(item) |
| 26 | add_setting_reader(item) |
| 27 | add_setting_writer(item) |
| 28 | end |
| 29 | |
| 30 | def add_setting_reader(item) |
| 31 | self.send(:define_method, item.name) do |
| 32 | raw_value = settings[item.name] |
| 33 | raw_value.nil? ? item.default : raw_value |
| 34 | end |
| 35 | if item.ruby_type == :boolean |
| 36 | self.send(:define_method, item.name + "?") do |
| 37 | raw_value = settings[item.name] |
| 38 | raw_value.nil? ? item.default : raw_value |
| 39 | end |
| 40 | end |
| 41 | end |
| 42 | |
| 43 | def add_setting_writer(item) |
| 44 | self.send(:define_method, "#{item.name}=") do |newvalue| |
| 45 | retval = settings[item.name] = canonicalize(item.name, newvalue) |
| 46 | self.save! unless new_record? |
| 47 | retval |
| 48 | end |
| 49 | end |
| 50 | |
| 51 | end |
| 52 | |
| 53 | def canonicalize(key, value) |
| 54 | self.class.fields[key.to_s].canonicalize(value) |
| 55 | end |
| 56 | |
| 57 | class Item |
| 58 | attr_accessor :name, :ruby_type, :default |
| 59 | |
| 60 | def canonicalize(value) |
| 61 | case ruby_type |
| 62 | when :boolean |
| 63 | case value |
| 64 | when "0", 0, '', false, "false", "f", nil |
| 65 | false |
| 66 | else |
| 67 | true |
| 68 | end |
| 69 | when :integer |
| 70 | value.to_i |
| 71 | when :string |
| 72 | value.to_s |
| 73 | when :yaml |
| 74 | value.to_yaml |
| 75 | else |
| 76 | value |
| 77 | end |
| 78 | end |
| 79 | end |
| 80 | end |
