-# rivets.js
-# version : 0.1.2
-# author : Michael Richards
-# license : MIT
+#     rivets.js
+#     version : 0.1.2
+#     author : Michael Richards
+#     license : MIT
 
+# Registers a specific binding routine between a model object and a DOM element.
+# All information for that routine is passed in when calling this function; the
+# specific element to bind to, an adapter interface for the model object, the
+# type of binding, the context object and the keypath at which to subscribe to
+# on the model object.
 registerBinding = (el, adapter, type, context, keypath) ->
   bind = bindings[type] || attributeBinding type
   bind el, adapter.read context, keypath

          keypath = path.join '.'
          registerBinding node, adapter, type, contexts[context], keypath

if module?
  module.exports = rivets
else

    el.addEventListener 'change', ->
      adapter.publish context, keypath, getInputValue this

# Returns the current input value for the specified element.
getInputValue = (el) ->
  switch el.type
    when 'text', 'textarea', 'password', 'select-one' then el.value
    when 'checkbox', 'radio' then el.checked

# Returns an attribute binding routine for the specified attribute. This is what
# `registerBinding` falls back to when there is no routine for the binding type.
attributeBinding = (attr) -> (el, value) ->
  if value then el.setAttribute attr, value else el.removeAttribute attr

# Returns a state binding routine for the specified attribute. Can optionally be
# negatively evaluated. This is used to build a lot of the core state binding
# routines.
stateBinding = (attr, inverse = false) -> (el, value) ->
  attributeBinding(attr) el, if inverse is !value then attr else false

# Core binding routines.
bindings =
  checked:
    stateBinding 'checked'
