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

83 lines
1.6 KiB
CoffeeScript

text_types_uninitialized = require "../Types/TextTypes"
HistoryBuffer = require "../HistoryBuffer"
Engine = require "../Engine"
#
# Framework for Text Datastructures.
#
class TextYatta
#
# @param {String} user_id Uniqe user id that defines this peer.
# @param {Connector} Connector The connector defines how you connect to the other peers.
#
constructor: (user_id, Connector)->
@HB = new HistoryBuffer user_id
text_types = text_types_uninitialized @HB
@engine = new Engine @HB, text_types.parser
@connector = new Connector @engine, @HB, text_types.execution_listener
first_word = new text_types.types.Word undefined
@HB.addOperation(first_word).execute()
@root_element = first_word
#
# @result Word
#
getRootElement: ()->
@root_element
#
# @see Engine
#
getEngine: ()->
@engine
#
# Get the initialized connector.
#
getConnector: ()->
@connector
#
# @see HistoryBuffer
#
getHistoryBuffer: ()->
@HB
#
# 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: ()->
@root_element.val()
#
# @see Word.insertText
#
insertText: (pos, content)->
@root_element.insertText pos, content
#
# @see Word.deleteText
#
deleteText: (pos, length)->
@root_element.deleteText pos, length
#
# @see Word.replaceText
#
replaceText: (text)->
@root_element.replaceText text
module.exports = TextYatta