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// Copyright 2015 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.
#ifndef NFC_h
#define NFC_h
#include "bindings/core/v8/ScriptPromise.h"
#include "bindings/core/v8/ScriptWrappable.h"
#include "bindings/modules/v8/StringOrArrayBufferOrNFCMessage.h"
#include "core/dom/ContextLifecycleObserver.h"
#include "core/page/PageVisibilityObserver.h"
#include "device/nfc/nfc.mojom-blink.h"
#include "modules/nfc/MessageCallback.h"
#include "mojo/public/cpp/bindings/binding.h"
#include "wtf/HashMap.h"
namespace blink {
class MessageCallback;
class NFCPushOptions;
using NFCPushMessage = StringOrArrayBufferOrNFCMessage;
class NFCWatchOptions;
class NFC final : public GarbageCollectedFinalized<NFC>,
public ScriptWrappable,
public PageVisibilityObserver,
public ContextLifecycleObserver,
public device::nfc::mojom::blink::NFCClient {
DEFINE_WRAPPERTYPEINFO();
USING_GARBAGE_COLLECTED_MIXIN(NFC);
USING_PRE_FINALIZER(NFC, dispose);
public:
static NFC* create(LocalFrame*);
virtual ~NFC();
void dispose();
// ContextLifecycleObserver overrides.
void contextDestroyed(ExecutionContext*) override;
// Pushes NFCPushMessage asynchronously to NFC tag / peer.
ScriptPromise push(ScriptState*,
const NFCPushMessage&,
const NFCPushOptions&);
// Cancels ongoing push operation.
ScriptPromise cancelPush(ScriptState*, const String&);
// Starts watching for NFC messages that match NFCWatchOptions criteria.
ScriptPromise watch(ScriptState*, MessageCallback*, const NFCWatchOptions&);
// Cancels watch operation with id.
ScriptPromise cancelWatch(ScriptState*, long id);
// Cancels all watch operations.
ScriptPromise cancelWatch(ScriptState*);
// Implementation of PageVisibilityObserver.
void pageVisibilityChanged() override;
// Interface required by garbage collection.
DECLARE_VIRTUAL_TRACE();
private:
// Returns promise with DOMException if feature is not supported
// or when context is not secure. Otherwise, returns empty promise.
ScriptPromise rejectIfNotSupported(ScriptState*);
void OnRequestCompleted(ScriptPromiseResolver*,
device::nfc::mojom::blink::NFCErrorPtr);
void OnConnectionError();
void OnWatchRegistered(MessageCallback*,
ScriptPromiseResolver*,
uint32_t id,
device::nfc::mojom::blink::NFCErrorPtr);
// device::nfc::mojom::blink::NFCClient implementation.
void OnWatch(const WTF::Vector<uint32_t>& ids,
device::nfc::mojom::blink::NFCMessagePtr) override;
private:
explicit NFC(LocalFrame*);
device::nfc::mojom::blink::NFCPtr m_nfc;
mojo::Binding<device::nfc::mojom::blink::NFCClient> m_client;
HeapHashSet<Member<ScriptPromiseResolver>> m_requests;
using WatchCallbacksMap = HeapHashMap<uint32_t, Member<MessageCallback>>;
WatchCallbacksMap m_callbacks;
};
} // namespace blink
#endif // NFC_h
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