74 lines
1.7 KiB
Ruby
74 lines
1.7 KiB
Ruby
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module VueR
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class Application
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def initialize(hash)
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hash.each do |k,v|
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wrap_attr(k,v)
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end
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wrap_methods
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@effect = nil
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@subscribers = {}
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end
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def wrap_attr(k,v)
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instance_variable_set "@#{k}" , v
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define_getter(k)
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define_setter(k)
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end
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def define_getter(k)
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self.class.define_method k.to_sym do
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track(k)
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instance_variable_get "@#{k}".to_sym
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end
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end
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def define_setter(k)
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self.class.define_method "#{k}=".to_sym do |new_v|
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instance_variable_set "@#{k}" , new_v
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trigger(k)
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end
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end
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def track( key )
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return unless @effect
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subs = get_subscribers_for(key)
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subs << @effect
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end
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def trigger(key)
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effects = get_subscribers_for(key)
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effects.each {|effect| effect() }
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end
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def get_subscribers_for(key)
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unless @subscribers.has_key?(key)
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@subscribers[key] = []
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end
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@subscribers[key]
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end
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def mount(on_class)
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puts $document[on_class].inner_html
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end
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def wrap_methods
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methods = self.class.methods(false).collect{|name| self.class.method(name)}
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methods.select!{|method| method.arity > 0 }
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methods.each{|method| wrap_method(method.name)}
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end
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def wrap_method(method_name)
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clazz = self.class
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clazz.alias "#{method_name}_original".to_sym , method_name
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clazz.remove_method method_name
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clazz.define_method method_name do
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@effect = self.class.method(method_name)
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self.class.method("#{method_name}_original".to_sym).call
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@effect = nil
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end
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clazz.method(method_name).call
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end
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end
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end
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