Add remote.getObject API to get object in browser by it's ID.

browser/api/atom_api_event_emitter.cc

@@ -30,12 +30,6 @@ EventEmitter::EventEmitter(v8::Handle<v8::Object> wrapper) {
 }
 
 EventEmitter::~EventEmitter() {
-  // process.emit('ATOM_BROWSER_INTERNAL_DELETE', this).
-  v8::Handle<v8::Value> args[] = {
-      v8::String::New("ATOM_BROWSER_INTERNAL_DELETE"),
-      handle_,
-  };
-  node::MakeCallback(node::process, "emit", 2, args);
 }
 
 bool EventEmitter::Emit(const std::string& name, base::ListValue* args) {

browser/atom/objects_registry.coffee

@@ -8,13 +8,27 @@ getStoreForRenderView = (process_id, routing_id) ->
   globalStore[key] = {} unless globalStore[key]?
   globalStore[key]
 
-exports.add = (process_id, routing_id, obj) ->
+process.on 'ATOM_BROWSER_INTERNAL_NEW', (obj) ->
+  # For objects created in browser scripts, keep a weak reference here.
   id = globalMap.add obj
+  obj.id = id
+
+exports.add = (process_id, routing_id, obj) ->
+  # Some native types may already been added to globalMap, in that case we
+  # don't add it twice.
+  id = obj.id ? globalMap.add obj
+
   store = getStoreForRenderView process_id, routing_id
+
+  # It's possible that a render view may want to get the same remote object
+  # twice, since we only allow one reference of one object per render view,
+  # we throw when the object is already referenced.
+  throw new Error("Object #{id} is already referenced") if store[id]?
+
   store[id] = obj
   id
 
-exports.get = (process_id, routing_id, id) ->
+exports.get = (id) ->
   globalMap.get id
 
 exports.remove = (process_id, routing_id, id) ->

browser/atom/rpc_server.coffee

@@ -14,7 +14,6 @@ class PlainObject
     else if @type is 'object' or @type is 'function'
       @name = value.constructor.name
       @id = objectsRegistry.add process_id, routing_id, value
-      value.id = @id
 
       @members = []
       @members.push { name: prop, type: typeof field } for prop, field of value
@@ -23,11 +22,14 @@ class PlainObject
       @value = value
 
 ipc.on 'ATOM_INTERNAL_REQUIRE', (event, process_id, routing_id, module) ->
-  event.result = new PlainObject(process_id, routing_id, require(module))
+  try
+    event.result = new PlainObject(process_id, routing_id, require(module))
+  catch e
+    event.result = type: 'error', value: e.message
 
 ipc.on 'ATOM_INTERNAL_CONSTRUCTOR', (event, process_id, routing_id, id, args) ->
   try
-    constructor = objectsRegistry.get process_id, routing_id, id
+    constructor = objectsRegistry.get id
     # Call new with array of arguments.
     # http://stackoverflow.com/questions/1606797/use-of-apply-with-new-operator-is-this-possible
     obj = new (Function::bind.apply(constructor, [null].concat(args)))
@@ -37,7 +39,7 @@ ipc.on 'ATOM_INTERNAL_CONSTRUCTOR', (event, process_id, routing_id, id, args) ->
 
 ipc.on 'ATOM_INTERNAL_FUNCTION_CALL', (event, process_id, routing_id, id, args) ->
   try
-    func = objectsRegistry.get process_id, routing_id, id
+    func = objectsRegistry.get id
     ret = func.apply global, args
     event.result = new PlainObject(process_id, routing_id, ret)
   catch e
@@ -45,7 +47,7 @@ ipc.on 'ATOM_INTERNAL_FUNCTION_CALL', (event, process_id, routing_id, id, args)
 
 ipc.on 'ATOM_INTERNAL_MEMBER_CALL', (event, process_id, routing_id, id, method, args) ->
   try
-    obj = objectsRegistry.get process_id, routing_id, id
+    obj = objectsRegistry.get id
     ret = obj[method].apply(obj, args)
     event.result = new PlainObject(process_id, routing_id, ret)
   catch e
@@ -53,17 +55,24 @@ ipc.on 'ATOM_INTERNAL_MEMBER_CALL', (event, process_id, routing_id, id, method,
 
 ipc.on 'ATOM_INTERNAL_MEMBER_SET', (event, process_id, routing_id, id, name, value) ->
   try
-    obj = objectsRegistry.get process_id, routing_id, id
+    obj = objectsRegistry.get id
     obj[name] = value
   catch e
     event.result = type: 'error', value: e.message
 
 ipc.on 'ATOM_INTERNAL_MEMBER_GET', (event, process_id, routing_id, id, name) ->
   try
-    obj = objectsRegistry.get process_id, routing_id, id
+    obj = objectsRegistry.get id
     event.result = new PlainObject(process_id, routing_id, obj[name])
   catch e
     event.result = type: 'error', value: e.message
 
+ipc.on 'ATOM_INTERNAL_GET_OBJECT', (event, process_id, routing_id, id) ->
+  try
+    obj = objectsRegistry.get id
+    event.result = new PlainObject(process_id, routing_id, obj)
+  catch e
+    event.result = type: 'error', value: e.message
+
 ipc.on 'ATOM_INTERNAL_DESTROY', (process_id, routing_id, id) ->
   objectsRegistry.remove process_id, routing_id, id

renderer/api/lib/remote.coffee

@@ -3,7 +3,7 @@ v8_util = process.atom_binding 'v8_util'
 
 generateFromPainObject = (plain) ->
   switch plain.type
-    when 'error' then throw new Error('Remote Error: ' + plain.value)
+    when 'error' then throw new Error(plain.value)
     when 'value' then plain.value
     when 'array' then (generateFromPainObject(el) for el in plain.members)
     else
@@ -56,3 +56,8 @@ generateFromPainObject = (plain) ->
 exports.require = (module) ->
   plain = ipc.sendChannelSync 'ATOM_INTERNAL_REQUIRE', module
   generateFromPainObject plain
+
+# Get object with specified id.
+exports.getObject = (id) ->
+  plain = ipc.sendChannelSync 'ATOM_INTERNAL_GET_OBJECT', id
+  generateFromPainObject plain