gecko-dev/dom/encoding/TextEncoder.cpp
2017-06-13 13:23:23 +03:00

53 lines
1.2 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "mozilla/dom/TextEncoder.h"
#include "mozilla/Encoding.h"
namespace mozilla {
namespace dom {
void
TextEncoder::Init()
{
}
void
TextEncoder::Encode(JSContext* aCx,
JS::Handle<JSObject*> aObj,
const nsAString& aString,
JS::MutableHandle<JSObject*> aRetval,
ErrorResult& aRv)
{
nsAutoCString utf8;
nsresult rv;
const Encoding* ignored;
Tie(rv, ignored) = UTF_8_ENCODING->Encode(aString, utf8);
if (NS_FAILED(rv)) {
aRv.Throw(rv);
return;
}
JSAutoCompartment ac(aCx, aObj);
JSObject* outView = Uint8Array::Create(
aCx, utf8.Length(), reinterpret_cast<const uint8_t*>(utf8.BeginReading()));
if (!outView) {
aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
return;
}
aRetval.set(outView);
}
void
TextEncoder::GetEncoding(nsAString& aEncoding)
{
aEncoding.AssignLiteral("utf-8");
}
} // namespace dom
} // namespace mozilla