137 lines
5 KiB
CoffeeScript
137 lines
5 KiB
CoffeeScript
process = global.process
|
|
ipc = require 'ipc'
|
|
v8Util = process.atomBinding 'v8_util'
|
|
CallbacksRegistry = require 'callbacks-registry'
|
|
|
|
callbacksRegistry = new CallbacksRegistry
|
|
|
|
# Convert the arguments object into an array of meta data.
|
|
wrapArgs = (args) ->
|
|
valueToMeta = (value) ->
|
|
if Array.isArray value
|
|
type: 'array', value: wrapArgs(value)
|
|
else if value? and typeof value is 'object' and v8Util.getHiddenValue value, 'atomId'
|
|
type: 'remote-object', id: v8Util.getHiddenValue value, 'atomId'
|
|
else if value? and typeof value is 'object'
|
|
ret = type: 'object', name: value.constructor.name, members: []
|
|
ret.members.push(name: prop, value: valueToMeta(field)) for prop, field of value
|
|
ret
|
|
else if typeof value is 'function' and v8Util.getHiddenValue value, 'returnValue'
|
|
type: 'function-with-return-value', value: valueToMeta(value())
|
|
else if typeof value is 'function'
|
|
type: 'function', id: callbacksRegistry.add(value)
|
|
else
|
|
type: 'value', value: value
|
|
|
|
Array::slice.call(args).map valueToMeta
|
|
|
|
# Convert meta data from browser into real value.
|
|
metaToValue = (meta) ->
|
|
switch meta.type
|
|
when 'value' then meta.value
|
|
when 'array' then (metaToValue(el) for el in meta.members)
|
|
when 'error'
|
|
throw new Error("#{meta.message}\n#{meta.stack}")
|
|
else
|
|
if meta.type is 'function'
|
|
# A shadow class to represent the remote function object.
|
|
ret =
|
|
class RemoteFunction
|
|
constructor: ->
|
|
if @constructor == RemoteFunction
|
|
# Constructor call.
|
|
obj = ipc.sendSync 'ATOM_BROWSER_CONSTRUCTOR', meta.id, wrapArgs(arguments)
|
|
|
|
# Returning object in constructor will replace constructed object
|
|
# with the returned object.
|
|
# http://stackoverflow.com/questions/1978049/what-values-can-a-constructor-return-to-avoid-returning-this
|
|
return metaToValue obj
|
|
else
|
|
# Function call.
|
|
ret = ipc.sendSync 'ATOM_BROWSER_FUNCTION_CALL', meta.id, wrapArgs(arguments)
|
|
return metaToValue ret
|
|
else
|
|
ret = v8Util.createObjectWithName meta.name
|
|
|
|
# Polulate delegate members.
|
|
for member in meta.members
|
|
do (member) ->
|
|
if member.type is 'function'
|
|
ret[member.name] =
|
|
class RemoteMemberFunction
|
|
constructor: ->
|
|
if @constructor is RemoteMemberFunction
|
|
# Constructor call.
|
|
obj = ipc.sendSync 'ATOM_BROWSER_MEMBER_CONSTRUCTOR', meta.id, member.name, wrapArgs(arguments)
|
|
return metaToValue obj
|
|
else
|
|
# Call member function.
|
|
ret = ipc.sendSync 'ATOM_BROWSER_MEMBER_CALL', meta.id, member.name, wrapArgs(arguments)
|
|
return metaToValue ret
|
|
else
|
|
ret.__defineSetter__ member.name, (value) ->
|
|
# Set member data.
|
|
ipc.sendSync 'ATOM_BROWSER_MEMBER_SET', meta.id, member.name, value
|
|
value
|
|
|
|
ret.__defineGetter__ member.name, ->
|
|
# Get member data.
|
|
ret = ipc.sendSync 'ATOM_BROWSER_MEMBER_GET', meta.id, member.name
|
|
metaToValue ret
|
|
|
|
# Track delegate object's life time, and tell the browser to clean up
|
|
# when the object is GCed.
|
|
v8Util.setDestructor ret, ->
|
|
ipc.send 'ATOM_BROWSER_DEREFERENCE', meta.storeId
|
|
|
|
# Remember object's id.
|
|
v8Util.setHiddenValue ret, 'atomId', meta.id
|
|
|
|
ret
|
|
|
|
# Browser calls a callback in renderer.
|
|
ipc.on 'ATOM_RENDERER_CALLBACK', (id, args) ->
|
|
callbacksRegistry.apply id, metaToValue(args)
|
|
|
|
# A callback in browser is released.
|
|
ipc.on 'ATOM_RENDERER_RELEASE_CALLBACK', (id) ->
|
|
callbacksRegistry.remove id
|
|
|
|
# Get remote module.
|
|
# (Just like node's require, the modules are cached permanently, note that this
|
|
# is safe leak since the object is not expected to get freed in browser)
|
|
moduleCache = {}
|
|
exports.require = (module) ->
|
|
return moduleCache[module] if moduleCache[module]?
|
|
|
|
meta = ipc.sendSync 'ATOM_BROWSER_REQUIRE', module
|
|
moduleCache[module] = metaToValue meta
|
|
|
|
# Get current window object.
|
|
windowCache = null
|
|
exports.getCurrentWindow = ->
|
|
return windowCache if windowCache?
|
|
meta = ipc.sendSync 'ATOM_BROWSER_CURRENT_WINDOW', process.guestInstanceId
|
|
windowCache = metaToValue meta
|
|
|
|
# Get a global object in browser.
|
|
exports.getGlobal = (name) ->
|
|
meta = ipc.sendSync 'ATOM_BROWSER_GLOBAL', name
|
|
metaToValue meta
|
|
|
|
# Get the process object in browser.
|
|
processCache = null
|
|
exports.__defineGetter__ 'process', ->
|
|
processCache = exports.getGlobal('process') unless processCache?
|
|
processCache
|
|
|
|
# Create a funtion that will return the specifed value when called in browser.
|
|
exports.createFunctionWithReturnValue = (returnValue) ->
|
|
func = -> returnValue
|
|
v8Util.setHiddenValue func, 'returnValue', true
|
|
func
|
|
|
|
# Get the guest WebContents from guestInstanceId.
|
|
exports.getGuestWebContents = (guestInstanceId) ->
|
|
meta = ipc.sendSync 'ATOM_BROWSER_GUEST_WEB_CONTENTS', guestInstanceId
|
|
metaToValue meta
|