53 lines
1.3 KiB
Ruby
53 lines
1.3 KiB
Ruby
module Guard
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module Hook
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def self.included(base)
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base.send :include, InstanceMethods
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end
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module InstanceMethods
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# When passed a sybmol, #hook will generate a hook name
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# from the symbol and calling method name. When passed
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# a string, #hook will turn the string into a symbol
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# directly.
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def hook(event)
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hook_name = if event.is_a? Symbol
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calling_method = caller[0][/`([^']*)'/, 1]
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"#{calling_method}_#{event}".to_sym
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else
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event.to_sym
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end
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UI.info "\nHook :#{hook_name} executed for #{self.class}"
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Hook.notify(self.class, hook_name)
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end
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end
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class << self
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def callbacks
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@callbacks ||= Hash.new { |hash, key| hash[key] = [] }
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end
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def add_callback(listener, guard_class, events)
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_events = events.is_a?(Array) ? events : [events]
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_events.each do |event|
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callbacks[[guard_class, event]] << listener
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end
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end
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def has_callback?(listener, guard_class, event)
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callbacks[[guard_class, event]].include?(listener)
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end
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def notify(guard_class, event)
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callbacks[[guard_class, event]].each do |listener|
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listener.call(guard_class, event)
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end
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end
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def reset_callbacks!
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@callbacks = nil
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end
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end
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end
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end
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