yjs/lib/Types/DOM.coffee
2015-02-26 21:28:06 +00:00

95 lines
2.3 KiB
CoffeeScript

json_types_uninitialized = require "./JsonTypes"
module.exports = (HB)->
json_types = json_types_uninitialized HB
types = json_types.types
parser = json_types.parser
#
# Manages XML types
# Not supported:
# * Attribute nodes
# * Real replace of child elements (to much overhead). Currently, the new element is inserted after the 'replaced' element, and then it is deleted.
# * Namespaces (*NS)
# * Browser specific methods (webkit-* operations)
class XmlType extends types.Insert
constructor: (uid, @tagname, attributes, elements, @xml)->
setXmlProxy: ()->
val: (enforce = false)->
if document?
if (not @xml?) or enforce
@xml = document.createElement @tagname
attr = @attributes.val()
for attr_name, value of attr
if value?
a = document.createAttribute attr_name
a.value = value
@xml.setAttributeNode a
e = @elements.beginning.next_cl
while e.type isnt "Delimiter"
n = e.content
if not e.isDeleted() and e.content? # TODO: how can this happen? Probably because listeners
if n.type is "XmlType"
@xml.appendChild n.val(enforce)
else if n.type is "TextNodeType"
text_node = n.val()
@xml.appendChild text_node
else
throw new Error "Internal structure cannot be transformed to dom"
e = e.next_cl
@setXmlProxy()
@xml
execute: ()->
super()
###
if not @validateSavedOperations()
return false
else
return true
###
#
# Get the parent of this JsonType.
# @return {XmlType}
#
getParent: ()->
@parent
#
# @private
#
# Convert all relevant information of this operation to the json-format.
# This result can be send to other clients.
#
_encode: ()->
json =
{
'type' : @type
'attributes' : @attributes.getUid()
'elements' : @elements.getUid()
'tagname' : @tagname
'uid' : @getUid()
}
json
parser['XmlType'] = (json)->
{
'uid' : uid
'attributes' : attributes
'elements' : elements
'tagname' : tagname
} = json
new XmlType uid, tagname, attributes, elements, undefined