ipc = require 'ipc'
path = require 'path'
objectsRegistry = require './objects_registry.js'
+v8_util = process.atomBinding 'v8_util'
+
+# Convert list of meta information into real arguments array, the main
+# purpose is to turn remote function's id into delegate function.
+argsToValues = (processId, routingId, metas) ->
+ constructCallback = (meta) ->
+ return meta.value if meta.type is 'value'
+
+ # Create a delegate function to do asynchronous RPC call.
+ ret = ->
+ args = new Meta(processId, routingId, arguments)
+ ipc.sendChannel processId, routingId, 'ATOM_INTERNAL_FUNCTION_CALL', meta.id, args
+ v8_util.setDestructor ret, ->
+ ipc.sendChannel processId, routingId, 'ATOM_INTERNAL_DEREFERENCE', meta.id
+ ret
+
+ constructCallback meta for meta in metas
# Convert a real value into a POD structure which carries information of this
# value.
@type = 'value' if value is null
@type = 'array' if Array.isArray value
+ # Treat the arguments object as array.
+ @type = 'array' if @type is 'object' and value.callee? and value.length?
+
if @type is 'array'
@members = []
@members.push new Meta(processId, routingId, el) for el in value
ipc.on 'ATOM_INTERNAL_CONSTRUCTOR', (event, processId, routingId, id, args) ->
try
+ args = argsToValues processId, routingId, args
constructor = objectsRegistry.get id
# Call new with array of arguments.
# http://stackoverflow.com/questions/1606797/use-of-apply-with-new-operator-is-this-possible
ipc.on 'ATOM_INTERNAL_FUNCTION_CALL', (event, processId, routingId, id, args) ->
try
+ args = argsToValues processId, routingId, args
func = objectsRegistry.get id
ret = func.apply global, args
event.result = new Meta(processId, routingId, ret)
ipc.on 'ATOM_INTERNAL_MEMBER_CALL', (event, processId, routingId, id, method, args) ->
try
+ args = argsToValues processId, routingId, args
obj = objectsRegistry.get id
ret = obj[method].apply(obj, args)
event.result = new Meta(processId, routingId, ret)
ipc = require 'ipc'
+IDWeakMap = require 'id_weak_map'
v8_util = process.atomBinding 'v8_util'
+class CallbacksRegistry
+ constructor: ->
+ @referencesMap = {}
+ @weakMap = new IDWeakMap
+
+ get: (id) -> @weakMap.get id
+ remove: (id) -> delete @referencesMap[id]
+
+ add: (callback) ->
+ id = @weakMap.add callback
+ @referencesMap[id] = callback
+ id
+
+# Translate arguments object into a list of meta data.
+# Unlike the Meta class in browser, this function only create delegate object
+# for functions, other types of value are transfered after serialization.
+callbacksRegistry = new CallbacksRegistry
+argumentsToMetaList = (args) ->
+ metas = []
+ for arg in args
+ if typeof arg is 'function'
+ metas.push type: 'function', id: callbacksRegistry.add(arg)
+ else
+ metas.push type: 'value', value: arg
+ metas
+
# Transform the description of value into a value or delegate object.
metaToValue = (meta) ->
switch meta.type
constructor: ->
if @constructor == RemoteFunction
# Constructor call.
- obj = ipc.sendChannelSync 'ATOM_INTERNAL_CONSTRUCTOR', meta.id, Array::slice.call(arguments)
+ obj = ipc.sendChannelSync 'ATOM_INTERNAL_CONSTRUCTOR', meta.id, argumentsToMetaList(arguments)
# Returning object in constructor will replace constructed object
# with the returned object.
return metaToValue obj
else
# Function call.
- ret = ipc.sendChannelSync 'ATOM_INTERNAL_FUNCTION_CALL', meta.id, Array::slice.call(arguments)
+ ret = ipc.sendChannelSync 'ATOM_INTERNAL_FUNCTION_CALL', meta.id, argumentsToMetaList(arguments)
return metaToValue ret
else
ret = v8_util.createObjectWithName meta.name
if member.type is 'function'
ret[member.name] = ->
# Call member function.
- ret = ipc.sendChannelSync 'ATOM_INTERNAL_MEMBER_CALL', meta.id, member.name, Array::slice.call(arguments)
+ ret = ipc.sendChannelSync 'ATOM_INTERNAL_MEMBER_CALL', meta.id, member.name, argumentsToMetaList(arguments)
metaToValue ret
else
ret.__defineSetter__ member.name, (value) ->
ret
+# Browser calls a callback in renderer.
+ipc.on 'ATOM_INTERNAL_FUNCTION_CALL', (callbackId, args) ->
+ callback = callbacksRegistry.get callbackId
+ callback.apply global, metaToValue(args)
+
+# Browser releases a callback in renderer.
+ipc.on 'ATOM_INTERNAL_DEREFERENCE', (callbackId) ->
+ callbacksRegistry.remove callbackId
+
# Get remote module.
exports.require = (module) ->
meta = ipc.sendChannelSync 'ATOM_INTERNAL_REQUIRE', module