WebCrypto: Add interfaces for importKey().

Source/modules/crypto/KeyOperation.cpp

Index: Source/modules/crypto/KeyOperation.cpp
diff --git a/Source/bindings/v8/ExceptionState.cpp b/Source/modules/crypto/KeyOperation.cpp
similarity index 50%
copy from Source/bindings/v8/ExceptionState.cpp
copy to Source/modules/crypto/KeyOperation.cpp
index 26ea567f9cab9fc1a6f509cbe621d65e70544171..3c98d881cf78c15c5c8a6efca6967f576afba72b 100644
--- a/Source/bindings/v8/ExceptionState.cpp
+++ b/Source/modules/crypto/KeyOperation.cpp
@@ -29,53 +29,90 @@
  */
 
 #include "config.h"
-#include "bindings/v8/ExceptionState.h"
+#include "modules/crypto/KeyOperation.h"
 
-#include "bindings/v8/V8ThrowException.h"
+#include "bindings/v8/ExceptionState.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_exception.set(m_isolate, exception);
+    m_exceptionCode = NotSupportedError;
+    m_state = Done;
 }
 
-void ExceptionState::throwTypeError(const String& message)
+void KeyOperation::initializationSucceeded(WebKit::WebCryptoKeyOperation* operationImpl)
 {
-    m_code = TypeError;
-    setException(V8ThrowException::createTypeError(message, m_isolate));
+    ASSERT(m_state == Initializing);
+    ASSERT(operationImpl);
+    ASSERT(!m_impl);
+
+    m_impl = operationImpl;
+    m_state = InProgress;
 }
 
-NonThrowExceptionState::NonThrowExceptionState()
-    : ExceptionState(0) { }
+void KeyOperation::completeWithError()
+{
+    ASSERT(m_state == Initializing || m_state == InProgress);
 
-void NonThrowExceptionState::throwDOMException(const ExceptionCode& ec, const String&)
+    m_impl = 0;
+    m_state = Done;
+
+    promiseResolver()->reject(ScriptValue::createNull());
+}
+
+void KeyOperation::completeWithKey(const WebKit::WebCryptoKey& key)
 {
-    m_code = ec;
+    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();
+    }
+
+    return promiseResolver()->promise();
 }
 
-void NonThrowExceptionState::throwTypeError(const String&)
+ScriptPromiseResolver* KeyOperation::promiseResolver()
 {
-    m_code = TypeError;
+    if (!m_promiseResolver)
+        m_promiseResolver = ScriptPromiseResolver::create();
+    return m_promiseResolver.get();
 }
 
 } // namespace WebCore