diff options
Diffstat (limited to 'chromium/mojo/apps/js/bindings/monotonic_clock.cc')
-rw-r--r-- | chromium/mojo/apps/js/bindings/monotonic_clock.cc | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/chromium/mojo/apps/js/bindings/monotonic_clock.cc b/chromium/mojo/apps/js/bindings/monotonic_clock.cc new file mode 100644 index 00000000000..733af8a69e2 --- /dev/null +++ b/chromium/mojo/apps/js/bindings/monotonic_clock.cc @@ -0,0 +1,42 @@ +// Copyright 2014 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#include "mojo/apps/js/bindings/monotonic_clock.h" + +#include "gin/object_template_builder.h" +#include "gin/per_isolate_data.h" +#include "gin/public/wrapper_info.h" +#include "mojo/public/cpp/system/core.h" + +namespace mojo { +namespace apps { + +namespace { + +gin::WrapperInfo g_wrapper_info = { gin::kEmbedderNativeGin }; + +double GetMonotonicSeconds() { + const double kMicrosecondsPerSecond = 1000000; + return static_cast<double>(mojo::GetTimeTicksNow()) / kMicrosecondsPerSecond; +} + +} // namespace + +const char MonotonicClock::kModuleName[] = "monotonic_clock"; + +v8::Local<v8::Value> MonotonicClock::GetModule(v8::Isolate* isolate) { + gin::PerIsolateData* data = gin::PerIsolateData::From(isolate); + v8::Local<v8::ObjectTemplate> templ = + data->GetObjectTemplate(&g_wrapper_info); + if (templ.IsEmpty()) { + templ = gin::ObjectTemplateBuilder(isolate) + .SetMethod("seconds", GetMonotonicSeconds) + .Build(); + data->SetObjectTemplate(&g_wrapper_info, templ); + } + return templ->NewInstance(); +} + +} // namespace apps +} // namespace mojo |