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      1 /*
      2  * Copyright (C) 2013 Google Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #ifndef KeyOperation_h
     32 #define KeyOperation_h
     33 
     34 #include "bindings/v8/ScriptObject.h"
     35 #include "public/platform/WebCrypto.h"
     36 #include "wtf/Forward.h"
     37 #include "wtf/PassRefPtr.h"
     38 #include "wtf/RefPtr.h"
     39 #include "wtf/ThreadSafeRefCounted.h"
     40 
     41 namespace WebKit {
     42 class WebCryptoKeyOperation;
     43 class WebCryptoKey;
     44 }
     45 
     46 namespace WebCore {
     47 
     48 class ExceptionState;
     49 class ScriptPromiseResolver;
     50 
     51 typedef int ExceptionCode;
     52 
     53 class KeyOperation : public WebKit::WebCryptoKeyOperationResultPrivate, public ThreadSafeRefCounted<KeyOperation> {
     54 public:
     55     static PassRefPtr<KeyOperation> create();
     56 
     57     ~KeyOperation();
     58 
     59     // Implementation of WebCryptoKeyOperationResultPrivate.
     60     virtual void initializationFailed() OVERRIDE;
     61     virtual void initializationSucceeded(WebKit::WebCryptoKeyOperation*) OVERRIDE;
     62     virtual void completeWithError() OVERRIDE;
     63     virtual void completeWithKey(const WebKit::WebCryptoKey&) OVERRIDE;
     64     virtual void ref() OVERRIDE;
     65     virtual void deref() OVERRIDE;
     66 
     67     ScriptObject returnValue(ExceptionState&);
     68 
     69 private:
     70     enum State {
     71         Initializing,
     72         InProgress,
     73         Done,
     74     };
     75 
     76     KeyOperation();
     77 
     78     ScriptPromiseResolver* promiseResolver();
     79 
     80     State m_state;
     81     WebKit::WebCryptoKeyOperation* m_impl;
     82     ExceptionCode m_initializationError;
     83     RefPtr<ScriptPromiseResolver> m_promiseResolver;
     84 };
     85 
     86 } // namespace WebCore
     87 
     88 #endif
     89