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Refactor Dispatcher

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This commit is contained in:
Thibault Jouan 2015-04-09 03:49:26 +00:00
parent 811354b683
commit 0ad00f3b77
2 changed files with 7 additions and 9 deletions
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9
lib/uh/wm/dispatcher.rb
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@ -3,21 +3,20 @@ module Uh
class Dispatcher class Dispatcher
attr_reader :hooks attr_reader :hooks
def initialize hooks = Hash.new def initialize
@hooks = hooks @hooks = Hash.new { |h, k| h[k] = [] }
end end
def [] *key def [] *key
@hooks[translate_key key] or [] @hooks[translate_key key]
end end
def on *key, &block def on *key, &block
@hooks[translate_key key] ||= []
@hooks[translate_key key] << block @hooks[translate_key key] << block
end end
def emit *key def emit *key
@hooks[translate_key key].tap { |o| o.each { |e| e.call } if o } @hooks[translate_key key].each { |e| e.call }
end end

7
spec/uh/wm/dispatcher_spec.rb
View File

@ -1,12 +1,11 @@
module Uh module Uh
module WM module WM
RSpec.describe Dispatcher do RSpec.describe Dispatcher do
let(:hooks) { {} } subject(:dispatcher) { described_class.new }
subject(:dispatcher) { described_class.new hooks }
describe '#[]' do describe '#[]' do
context 'when given key for existing hook' do context 'when given key for existing hook' do
let(:hooks) { { hook_key: [:hook] } } before { dispatcher.hooks[:hook_key] = [:hook] }
it 'returns registered hooks for this key' do it 'returns registered hooks for this key' do
expect(dispatcher[:hook_key]).to eq [:hook] expect(dispatcher[:hook_key]).to eq [:hook]
@ -14,7 +13,7 @@ module Uh
end end
context 'when given multiple keys for existing hook' do context 'when given multiple keys for existing hook' do
let(:hooks) { { %i[hook key] => [:hook] } } before { dispatcher.hooks[%i[hook key]] = [:hook] }
it 'returns registered hooks for this key' do it 'returns registered hooks for this key' do
expect(dispatcher[:hook, :key]).to eq [:hook] expect(dispatcher[:hook, :key]).to eq [:hook]