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

134 lines
3.7 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/. */
/* Copyright © 2013 Deutsche Telekom, Inc. */
#ifndef mozilla_dom_MozNDEFRecord_h__
#define mozilla_dom_MozNDEFRecord_h__
#include "mozilla/Attributes.h"
#include "mozilla/ErrorResult.h"
#include "nsCycleCollectionParticipant.h"
#include "nsWrapperCache.h"
#include "jsapi.h"
#include "mozilla/dom/MozNDEFRecordBinding.h"
#include "mozilla/dom/TypedArray.h"
#include "jsfriendapi.h"
#include "js/GCAPI.h"
#include "nsISupports.h"
struct JSContext;
struct JSStructuredCloneWriter;
namespace mozilla {
namespace dom {
class MozNDEFRecordOptions;
class MozNDEFRecord final : public nsISupports,
public nsWrapperCache
{
public:
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(MozNDEFRecord)
public:
MozNDEFRecord(nsISupports* aParent, TNF aTnf = TNF::Empty);
nsISupports* GetParentObject() const
{
return mParent;
}
virtual JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
static already_AddRefed<MozNDEFRecord>
Constructor(const GlobalObject& aGlobal,
const MozNDEFRecordOptions& aOptions,
ErrorResult& aRv);
static already_AddRefed<MozNDEFRecord>
Constructor(const GlobalObject& aGlobal,
const nsAString& aURI,
ErrorResult& aRv);
TNF Tnf() const
{
return mTnf;
}
void GetType(JSContext* /* unused */, JS::MutableHandle<JSObject*> aRetVal) const
{
if (mType) {
JS::ExposeObjectToActiveJS(mType);
}
aRetVal.set(mType);
}
void GetId(JSContext* /* unused */, JS::MutableHandle<JSObject*> aRetVal) const
{
if (mId) {
JS::ExposeObjectToActiveJS(mId);
}
aRetVal.set(mId);
}
void GetPayload(JSContext* /* unused */, JS::MutableHandle<JSObject*> aRetVal) const
{
if (mPayload) {
JS::ExposeObjectToActiveJS(mPayload);
}
aRetVal.set(mPayload);
}
uint32_t Size() const
{
return mSize;
}
void GetAsURI(nsAString& aRetVal);
// Structured clone methods use these to clone MozNDEFRecord.
bool WriteStructuredClone(JSContext* aCx, JSStructuredCloneWriter* aWriter) const;
bool ReadStructuredClone(JSContext* aCx, JSStructuredCloneReader* aReader);
protected:
~MozNDEFRecord();
private:
MozNDEFRecord() = delete;
nsRefPtr<nsISupports> mParent;
void HoldData();
void DropData();
void InitType(JSContext* aCx, const Optional<Nullable<Uint8Array>>& aType);
void InitType(JSContext* aCx, const RTD rtd);
void InitType(JSContext* aCx, JSObject& aType, uint32_t aLen);
void InitId(JSContext* aCx, const Optional<Nullable<Uint8Array>>& aId);
void InitId(JSContext* aCx, JSObject& aId, uint32_t aLen);
void InitPayload(JSContext* aCx, const Optional<Nullable<Uint8Array>>& aPayload);
void InitPayload(JSContext* aCx, const nsAString& aUri);
void InitPayload(JSContext* aCx, JSObject& aPayload, uint32_t aLen);
void IncSize(uint32_t aCount);
void IncSizeForPayload(uint32_t aLen);
bool WriteUint8Array(JSContext* aCx, JSStructuredCloneWriter* aWriter, JSObject* aObj, uint32_t aLen) const;
static bool
ValidateTNF(const MozNDEFRecordOptions& aOptions, ErrorResult& aRv);
static uint32_t GetURIIdentifier(const nsCString& aUri);
TNF mTnf;
JS::Heap<JSObject*> mType;
JS::Heap<JSObject*> mId;
JS::Heap<JSObject*> mPayload;
uint32_t mSize;
};
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_MozNDEFRecord_h__