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/*
* Copyright (C) 2025 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#if ENABLE(WEB_AUTHN)
#include <WebCore/ActiveDOMObject.h>
#include <WebCore/DigitalCredentialsProtocols.h>
#include <WebCore/JSDOMPromiseDeferred.h>
#include <WebCore/UnvalidatedDigitalCredentialRequest.h>
#include <optional>
#include <wtf/CanMakeWeakPtr.h>
#include <wtf/Noncopyable.h>
#include <wtf/TZoneMalloc.h>
#include <wtf/Vector.h>
namespace WebCore {
class AbortSignal;
class BasicCredential;
class CredentialRequestCoordinatorClient;
class Document;
class LocalFrame;
class Page;
struct DigitalCredentialsRequestData;
struct DigitalCredentialsResponseData;
struct ExceptionData;
using CredentialPromise = DOMPromiseDeferred<IDLNullable<IDLInterface<BasicCredential>>>;
class CredentialRequestCoordinator final : public RefCounted<CredentialRequestCoordinator>, public CanMakeWeakPtr<CredentialRequestCoordinator>, public ActiveDOMObject {
WTF_MAKE_TZONE_ALLOCATED_EXPORT(CredentialRequestCoordinator, WEBCORE_EXPORT);
WTF_MAKE_NONCOPYABLE(CredentialRequestCoordinator);
public:
static Ref<CredentialRequestCoordinator> create(Ref<CredentialRequestCoordinatorClient>&&, Page&);
WEBCORE_EXPORT void presentPicker(const Document&, CredentialPromise&&, Vector<UnvalidatedDigitalCredentialRequest>&&, RefPtr<AbortSignal>);
WEBCORE_EXPORT void abortPicker(ExceptionOr<JSC::JSValue>&&);
~CredentialRequestCoordinator();
void ref() const final { RefCounted::ref(); }
void deref() const final { RefCounted::deref(); }
void contextDestroyed() final;
private:
static constexpr bool canPresentDigitalCredentialsUI()
{
#if HAVE(DIGITAL_CREDENTIALS_UI)
return true;
#else
return false;
#endif
}
class PickerStateGuard final {
public:
explicit PickerStateGuard(CredentialRequestCoordinator&);
PickerStateGuard(const PickerStateGuard&) = delete;
PickerStateGuard& operator=(const PickerStateGuard&) = delete;
PickerStateGuard(PickerStateGuard&&) noexcept;
PickerStateGuard& operator=(PickerStateGuard&&) noexcept;
~PickerStateGuard();
private:
WeakRef<CredentialRequestCoordinator> m_coordinator;
bool m_active { true };
}; // class PickerStateGuard
enum class PickerState : uint8_t {
Idle,
Presenting,
Aborting
}; // enum class PickerState
bool canTransitionTo(PickerState) const;
PickerState currentState() const;
void setState(PickerState);
bool hasCurrentPromise() const { return m_currentPromise.has_value(); }
void setCurrentPromise(CredentialPromise&&);
CredentialPromise* currentPromise();
ExceptionOr<JSC::JSObject*> parseDigitalCredentialsResponseData(Document&, const String&) const;
void handleDigitalCredentialsPickerResult(Expected<DigitalCredentialsResponseData, ExceptionData>&& responseOrException, RefPtr<AbortSignal>);
void finalizeDigitalCredential(const DigitalCredentialsResponseData&);
explicit CredentialRequestCoordinator(Ref<CredentialRequestCoordinatorClient>&&, Page&);
const Ref<CredentialRequestCoordinatorClient> m_client;
PickerState m_state { PickerState::Idle };
std::optional<CredentialPromise> m_currentPromise;
WeakPtr<Page> m_page;
};
} // namespace WebCore
#endif // ENABLE(WEB_AUTHN)
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