yjs/build/node/Frameworks/JsonYatta.coffee
2014-08-12 19:18:56 +02:00

86 lines
1.9 KiB
CoffeeScript

json_types_uninitialized = require "../Types/JsonTypes"
HistoryBuffer = require "../HistoryBuffer"
Engine = require "../Engine"
#
# Framework for Json data-structures.
# Known values that are supported:
# * String
# * Integer
# * Array
#
class JsonYatta
#
# @param {String} user_id Unique id of the peer.
# @param {Connector} Connector the connector class.
#
constructor: (user_id, Connector)->
@HB = new HistoryBuffer user_id
json_types = json_types_uninitialized @HB
@engine = new Engine @HB, json_types.parser
@connector = new Connector @engine, @HB, json_types.execution_listener, @
first_word = new json_types.types.JsonType @HB.getReservedUniqueIdentifier()
@HB.addOperation(first_word).execute()
@root_element = first_word
#
# @result JsonType
#
getRootElement: ()->
@root_element
#
# @see Engine
#
getEngine: ()->
@engine
#
# Get the initialized connector.
#
getConnector: ()->
@connector
#
# @see HistoryBuffer
#
getHistoryBuffer: ()->
@HB
#
# @see JsonType.setMutableDefault
#
setMutableDefault: (mutable)->
@root_element.setMutableDefault(mutable)
#
# Get the UserId from the HistoryBuffer object.
# In most cases this will be the same as the user_id value with which
# JsonYatta was initialized (Depending on the HistoryBuffer implementation).
#
getUserId: ()->
@HB.getUserId()
#
# @see JsonType.val
#
val : (name, content, mutable)->
@root_element.val(name, content, mutable)
#
# @see JsonType.value
#
Object.defineProperty JsonYatta.prototype, 'value',
get : -> @root_element.value
set : (o)->
if o.constructor is {}.constructor
for o_name,o_obj of o
@val(o_name, o_obj, 'immutable')
else
throw new Error "You must only set Object values!"
window?.JsonYatta = JsonYatta
module.exports = JsonYatta