gecko-dev/dom/nfc/MozIsoDepTech.cpp
2015-05-03 15:32:37 -04:00

103 lines
2.8 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 "MozIsoDepTech.h"
#include "mozilla/dom/Promise.h"
namespace mozilla {
namespace dom {
NS_IMPL_CYCLE_COLLECTION_CLASS(MozIsoDepTech)
NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN(MozIsoDepTech)
NS_IMPL_CYCLE_COLLECTION_TRACE_PRESERVED_WRAPPER
NS_IMPL_CYCLE_COLLECTION_TRACE_END
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(MozIsoDepTech)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mWindow)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mTag)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(MozIsoDepTech)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mWindow)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mTag)
NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
NS_IMPL_CYCLE_COLLECTING_ADDREF(MozIsoDepTech)
NS_IMPL_CYCLE_COLLECTING_RELEASE(MozIsoDepTech)
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(MozIsoDepTech)
NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
NS_INTERFACE_MAP_ENTRY(nsISupports)
NS_INTERFACE_MAP_END
const NFCTechType MozIsoDepTech::mTechnology = NFCTechType::ISO_DEP;
/* static */
already_AddRefed<MozIsoDepTech>
MozIsoDepTech::Constructor(const GlobalObject& aGlobal,
MozNFCTag& aNFCTag,
ErrorResult& aRv)
{
ErrorResult rv;
nsCOMPtr<nsPIDOMWindow> win = do_QueryInterface(aGlobal.GetAsSupports());
if (!win) {
aRv.Throw(NS_ERROR_FAILURE);
return nullptr;
}
Nullable<nsTArray<NFCTechType>> techList;
aNFCTag.GetTechList(techList, rv);
if (rv.Failed()) {
aRv.Throw(NS_ERROR_FAILURE);
return nullptr;
}
if (techList.IsNull() || !(techList.Value().Contains(mTechnology))) {
aRv.Throw(NS_ERROR_DOM_NOT_SUPPORTED_ERR);
return nullptr;
}
nsRefPtr<MozIsoDepTech> isoDep = new MozIsoDepTech(win, aNFCTag);
return isoDep.forget();
}
MozIsoDepTech::MozIsoDepTech(nsPIDOMWindow* aWindow, MozNFCTag& aNFCTag)
: mWindow(aWindow)
, mTag(&aNFCTag)
{
}
MozIsoDepTech::~MozIsoDepTech()
{
}
already_AddRefed<Promise>
MozIsoDepTech::Transceive(const Uint8Array& aCommand, ErrorResult& aRv)
{
ErrorResult rv;
aCommand.ComputeLengthAndData();
nsRefPtr<Promise> promise = mTag->Transceive(mTechnology, aCommand, rv);
if (rv.Failed()) {
aRv.Throw(NS_ERROR_FAILURE);
return nullptr;
}
return promise.forget();
}
JSObject*
MozIsoDepTech::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
{
return MozIsoDepTechBinding::Wrap(aCx, this, aGivenProto);
}
} // namespace dom
} // namespace mozilla