WebCrypto: Add interfaces for importKey().

Source/modules/crypto/KeyOperation.h

 /*
  * 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
@@ skipping 10 matching lines @@
  * 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 SubtleCrypto_h
-#define SubtleCrypto_h
+#ifndef KeyOperation_h
+#define KeyOperation_h
 
-#include "bindings/v8/ScriptWrappable.h"
+#include "bindings/v8/ScriptObject.h"
 #include "wtf/Forward.h"
 #include "wtf/PassRefPtr.h"
-#include "wtf/RefCounted.h"
+#include "wtf/RefPtr.h"
+#include "wtf/ThreadSafeRefCounted.h"
+
+namespace WebKit {
+class WebCryptoKeyOperation;
+class WebCryptoKey;
+}
 
 namespace WebCore {
 
-class CryptoOperation;
-class Dictionary;
 class ExceptionState;
+class ScriptPromiseResolver;
 
-class SubtleCrypto : public ScriptWrappable, public RefCounted<SubtleCrypto> {
+typedef int ExceptionCode;
+
+// todo: m_exceptionCode
+//       create the promise resolver.
+
+class KeyOperation : public ThreadSafeRefCounted<KeyOperation> {
 public:
-    static PassRefPtr<SubtleCrypto> create() { return adoptRef(new SubtleCrypto()); }
+    static PassRefPtr<KeyOperation> create();
 
-    PassRefPtr<CryptoOperation> encrypt(const Dictionary&, ExceptionState&);
-    PassRefPtr<CryptoOperation> decrypt(const Dictionary&, ExceptionState&);
-    PassRefPtr<CryptoOperation> sign(const Dictionary&, ExceptionState&);
-    // Note that this is not named "verify" because when compiling on Mac that expands to a macro and breaks.
-    PassRefPtr<CryptoOperation> verifySignature(const Dictionary&, ExceptionState&);
-    PassRefPtr<CryptoOperation> digest(const Dictionary&, ExceptionState&);
+    ~KeyOperation();
+
+    // Implementation of WebKit::WebCryptoKeyOperationResult.
+    void initializationFailed();
+    void initializationSucceeded(WebKit::WebCryptoKeyOperation*);
+    void completeWithError();
+    void completeWithKey(const WebKit::WebCryptoKey&);
+
+    ScriptObject returnValue(ExceptionState&);
 
 private:
-    SubtleCrypto();
+    enum State {
+        Initializing,
+        InProgress,
+        Done,
+    };
+
+    KeyOperation();
+
+    ScriptPromiseResolver* promiseResolver();
+
+    State m_state;
+    WebKit::WebCryptoKeyOperation* m_impl;
+    ExceptionCode m_exceptionCode;
+    RefPtr<ScriptPromiseResolver> m_promiseResolver;
 };
 
 } // namespace WebCore
 
 #endif