electron/renderer/api/lib/remote.coffee

84 lines
3 KiB
CoffeeScript

ipc = require 'ipc'
v8_util = process.atomBinding 'v8_util'
# Transform the description of value into a value or delegate object.
metaToValue = (meta) ->
switch meta.type
when 'error' then throw new Error(meta.value)
when 'value' then meta.value
when 'array' then (metaToValue(el) for el in meta.members)
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.sendChannelSync 'ATOM_BROWSER_CONSTRUCTOR', meta.id, Array::slice.call(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.sendChannelSync 'ATOM_BROWSER_FUNCTION_CALL', meta.id, Array::slice.call(arguments)
return metaToValue ret
else
ret = v8_util.createObjectWithName meta.name
# Polulate delegate members.
for member in meta.members
do (member) ->
if member.type is 'function'
ret[member.name] = ->
# Call member function.
ret = ipc.sendChannelSync 'ATOM_BROWSER_MEMBER_CALL', meta.id, member.name, Array::slice.call(arguments)
metaToValue ret
else
ret.__defineSetter__ member.name, (value) ->
# Set member data.
ipc.sendChannelSync 'ATOM_BROWSER_MEMBER_SET', meta.id, member.name, value
ret.__defineGetter__ member.name, ->
# Get member data.
ret = ipc.sendChannelSync '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.
v8_util.setDestructor ret, ->
ipc.sendChannel 'ATOM_BROWSER_DEREFERENCE', meta.storeId
ret
# Release all resources of current render view when it's going to be unloaded.
window.addEventListener 'unload', (event) ->
ipc.sendChannelSync 'ATOM_BROWSER_RELEASE_RENDER_VIEW'
# Get remote module.
exports.require = (module) ->
meta = ipc.sendChannelSync 'ATOM_BROWSER_REQUIRE', module
metaToValue meta
# Get object with specified id.
exports.getObject = (id) ->
meta = ipc.sendChannelSync 'ATOM_BROWSER_REFERENCE', id
metaToValue meta
# Get current window object.
exports.getCurrentWindow = ->
meta = ipc.sendChannelSync 'ATOM_BROWSER_CURRENT_WINDOW'
metaToValue meta
# Get a global object in browser.
exports.getGlobal = (name) ->
meta = ipc.sendChannelSync 'ATOM_BROWSER_GLOBAL', name
metaToValue meta
# Get the process object in browser.
processCache = null
exports.__defineGetter__ 'process', ->
processCache = exports.getGlobal('process') unless processCache?
processCache