electron/atom/common/event_emitter_caller.cc

40 lines
1.2 KiB
C++

// Copyright (c) 2015 GitHub, Inc.
// Use of this source code is governed by the MIT license that can be
// found in the LICENSE file.
#include "atom/common/event_emitter_caller.h"
#include "base/memory/scoped_ptr.h"
#include "third_party/WebKit/public/web/WebScopedMicrotaskSuppression.h"
#include "atom/common/node_includes.h"
namespace mate {
namespace internal {
namespace {
// Returns whether current process is browser process, currently we detect it
// by checking whether current has used V8 Lock, but it might be a bad idea.
inline bool IsBrowserProcess() {
return v8::Locker::IsActive();
}
} // namespace
v8::Local<v8::Value> CallEmitWithArgs(v8::Isolate* isolate,
v8::Local<v8::Object> obj,
ValueVector* args) {
// Perform microtask checkpoint after running JavaScript.
scoped_ptr<blink::WebScopedRunV8Script> script_scope(
IsBrowserProcess() ? nullptr : new blink::WebScopedRunV8Script(isolate));
// Use node::MakeCallback to call the callback, and it will also run pending
// tasks in Node.js.
return node::MakeCallback(
isolate, obj, "emit", args->size(), &args->front());
}
} // namespace internal
} // namespace mate