root/Source/modules/crypto/CryptoResultImpl.h

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INCLUDED FROM


/*
 * Copyright (C) 2013 Google Inc. All rights reserved.
 *
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 * modification, are permitted provided that the following conditions are
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 *
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 * notice, this list of conditions and the following disclaimer.
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 * this software without specific prior written permission.
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#ifndef CryptoResultImpl_h
#define CryptoResultImpl_h

#include "bindings/v8/DOMRequestState.h"
#include "bindings/v8/ScriptPromise.h"
#include "bindings/v8/ScriptPromiseResolver.h"
#include "core/dom/ContextLifecycleObserver.h"
#include "platform/CryptoResult.h"
#include "public/platform/WebCrypto.h"
#include "wtf/Assertions.h"
#include "wtf/Forward.h"
#include "wtf/Threading.h"

namespace WebCore {

class ScriptPromiseResolver;
class ScriptState;

// Wrapper around a Promise to notify completion of the crypto operation.
// Platform cannot know about Promises which are declared in bindings.
class CryptoResultImpl FINAL : public CryptoResult, public ContextLifecycleObserver {
public:
    ~CryptoResultImpl();

    static PassRefPtr<CryptoResultImpl> create();

    virtual void completeWithError() OVERRIDE;
    virtual void completeWithError(const blink::WebString&) OVERRIDE;
    virtual void completeWithBuffer(const blink::WebArrayBuffer&) OVERRIDE;
    virtual void completeWithBoolean(bool) OVERRIDE;
    virtual void completeWithKey(const blink::WebCryptoKey&) OVERRIDE;
    virtual void completeWithKeyPair(const blink::WebCryptoKey& publicKey, const blink::WebCryptoKey& privateKey) OVERRIDE;

    ScriptPromise promise() { return m_promiseResolver->promise(); }

private:
    CryptoResultImpl(ExecutionContext*);
    void finish();
    void CheckValidThread() const;

    // Override from ContextLifecycleObserver
    virtual void contextDestroyed() OVERRIDE;

    // Returns true if the ExecutionContext is still alive and running.
    bool canCompletePromise() const;

    void clearPromiseResolver();

    RefPtr<ScriptPromiseResolver> m_promiseResolver;
    DOMRequestState m_requestState;

#if !ASSERT_DISABLED
    ThreadIdentifier m_owningThread;
    bool m_finished;
#endif
};

} // namespace WebCore

#endif

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