WebCrypto: Add interfaces for importKey().

Source/modules/crypto/KeyOperation.cpp

 /*
  * 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 11 matching lines @@
  * 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.
  */
 
 #include "config.h"
+#include "modules/crypto/KeyOperation.h"
+
 #include "bindings/v8/ExceptionState.h"
-
-#include "bindings/v8/V8ThrowException.h"
+#include "V8Key.h" // NOTE: This must appear before ScriptPromiseResolver to define toV8()
+#include "bindings/v8/ScriptPromiseResolver.h"
 #include "core/dom/ExceptionCode.h"
+#include "modules/crypto/Key.h"
+#include "public/platform/WebCrypto.h"
 
 namespace WebCore {
 
-void ExceptionState::clearException()
+PassRefPtr<KeyOperation> KeyOperation::create()
 {
-    m_code = 0;
-    m_exception.clear();
+    return adoptRef(new KeyOperation);
 }
 
-void ExceptionState::throwDOMException(const ExceptionCode& ec, const String& message)
+KeyOperation::KeyOperation()
+    : m_state(Initializing)
+    , m_impl(0)
+    , m_exceptionCode(0)
 {
-    ASSERT(ec);
-    m_code = ec;
-    setException(V8ThrowException::createDOMException(ec, message, m_isolate));
 }
 
-void ExceptionState::setException(v8::Handle<v8::Value> exception)
+KeyOperation::~KeyOperation()
 {
-    if (exception.IsEmpty()) {
-        clearException();
-        return;
+    ASSERT(!m_impl);
+}
+
+void KeyOperation::initializationFailed()
+{
+    ASSERT(m_state == Initializing);
+    ASSERT(!m_impl);
+
+    m_exceptionCode = NotSupportedError;
+    m_state = Done;
+}
+
+void KeyOperation::initializationSucceeded(WebKit::WebCryptoKeyOperation* operationImpl)
+{
+    ASSERT(m_state == Initializing);
+    ASSERT(operationImpl);
+    ASSERT(!m_impl);
+
+    m_impl = operationImpl;
+    m_state = InProgress;
+}
+
+void KeyOperation::completeWithError()
+{
+    ASSERT(m_state == Initializing || m_state == InProgress);
+
+    m_impl = 0;
+    m_state = Done;
+
+    promiseResolver()->reject(ScriptValue::createNull());
+}
+
+void KeyOperation::completeWithKey(const WebKit::WebCryptoKey& key)
+{
+    ASSERT(m_state == Initializing || m_state == InProgress);
+
+    m_impl = 0;
+    m_state = Done;
+
+    promiseResolver()->fulfill(Key::create(key));
+}
+
+ScriptObject KeyOperation::returnValue(ExceptionState& es)
+{
+    ASSERT(m_state != Initializing);
+
+    if (m_exceptionCode) {
+        es.throwDOMException(m_exceptionCode);
+        return ScriptObject();
     }
 
-    m_exception.set(m_isolate, exception);
+    return promiseResolver()->promise();
 }
 
-void ExceptionState::throwTypeError(const String& message)
+ScriptPromiseResolver* KeyOperation::promiseResolver()
 {
-    m_code = TypeError;
-    setException(V8ThrowException::createTypeError(message, m_isolate));
-}
-
-NonThrowExceptionState::NonThrowExceptionState()
-    : ExceptionState(0) { }
-
-void NonThrowExceptionState::throwDOMException(const ExceptionCode& ec, const String&)
-{
-    m_code = ec;
-}
-
-void NonThrowExceptionState::throwTypeError(const String&)
-{
-    m_code = TypeError;
+    if (!m_promiseResolver)
+        m_promiseResolver = ScriptPromiseResolver::create();
+    return m_promiseResolver.get();
 }
 
 } // namespace WebCore