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/*
* Copyright (C) 2013 Google 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:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
* OWNER OR 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.
*/
#ifndef CryptoResultImpl_h
#define CryptoResultImpl_h
#include "bindings/v8/ScriptPromise.h"
#include "core/dom/ExceptionCode.h"
#include "platform/CryptoResult.h"
#include "public/platform/WebCrypto.h"
#include "wtf/Forward.h"
#include "wtf/WeakPtr.h"
namespace WebCore {
class ScriptPromiseResolverWithContext;
ExceptionCode webCryptoErrorToExceptionCode(blink::WebCryptoErrorType);
// Wrapper around a Promise to notify completion of the crypto operation.
//
// The thread on which CryptoResultImpl was created on is referred to as the
// "origin thread".
//
// * At creation time there must be an active ExecutionContext.
// * The CryptoResult interface must only be called from the origin thread.
// * ref(), deref(), cancelled() and cancel() can be called from any thread.
// * One of the completeWith***() functions must be called, or the
// m_resolver will be leaked until the ExecutionContext is destroyed.
class CryptoResultImpl FINAL : public CryptoResult {
public:
~CryptoResultImpl();
static PassRefPtr<CryptoResultImpl> create(ScriptState*);
virtual void completeWithError(blink::WebCryptoErrorType, const blink::WebString&) OVERRIDE;
virtual void completeWithBuffer(const blink::WebArrayBuffer&) OVERRIDE;
virtual void completeWithJson(const char* utf8Data, unsigned length) 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;
virtual bool cancelled() const OVERRIDE;
// If called after completion (including cancellation) will return an empty
// ScriptPromise.
ScriptPromise promise();
private:
class WeakResolver;
explicit CryptoResultImpl(ScriptState*);
void cancel();
WeakPtr<ScriptPromiseResolverWithContext> m_resolver;
volatile int m_cancelled;
};
} // namespace WebCore
#endif
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