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/mediasource/SourceBufferList.h"
+#include "modules/crypto/KeyOperation.h"
 
-#include "core/dom/Event.h"
-#include "core/dom/GenericEventQueue.h"
-#include "modules/mediasource/SourceBuffer.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 {
 
-SourceBufferList::SourceBufferList(ScriptExecutionContext* context, GenericEventQueue* asyncEventQueue)
-    : m_scriptExecutionContext(context)
-    , m_asyncEventQueue(asyncEventQueue)
+KeyOperation::KeyOperation()
+    : m_state(Initializing)
+    , m_impl(0)
+    , m_exceptionCode(0)
 {
-    ScriptWrappable::init(this);
 }
 
-SourceBufferList::~SourceBufferList()
+KeyOperation::~KeyOperation()
 {
-    ASSERT(m_list.isEmpty());
+    ASSERT(!m_impl);
 }
 
-void SourceBufferList::add(PassRefPtr<SourceBuffer> buffer)
+void KeyOperation::initializationFailed()
 {
-    m_list.append(buffer);
-    scheduleEvent(eventNames().addsourcebufferEvent);
+    ASSERT(m_state == Initializing);
+    ASSERT(!m_impl);
+
+    m_exceptionCode = NotSupportedError;
+    m_state = Done;
 }
 
-void SourceBufferList::remove(SourceBuffer* buffer)
+void KeyOperation::initializationSucceeded(WebKit::WebCryptoKeyOperation* operationImpl)
 {
-    size_t index = m_list.find(buffer);
-    if (index == notFound)
-        return;
-    m_list.remove(index);
-    scheduleEvent(eventNames().removesourcebufferEvent);
+    ASSERT(m_state == Initializing);
+    ASSERT(operationImpl);
+    ASSERT(!m_impl);
+
+    m_impl = operationImpl;
+    m_state = InProgress;
 }
 
-void SourceBufferList::clear()
+void KeyOperation::completeWithError()
 {
-    m_list.clear();
-    scheduleEvent(eventNames().removesourcebufferEvent);
+    ASSERT(m_state == Initializing || m_state == InProgress);
+
+    m_impl = 0;
+    m_state = Done;
+
+    promiseResolver()->reject(ScriptValue::createNull());
 }
 
-void SourceBufferList::scheduleEvent(const AtomicString& eventName)
+void KeyOperation::completeWithKey(const WebKit::WebCryptoKey& key)
 {
-    ASSERT(m_asyncEventQueue);
+    ASSERT(m_state == Initializing || m_state == InProgress);
 
-    RefPtr<Event> event = Event::create(eventName, false, false);
-    event->setTarget(this);
+    m_impl = 0;
+    m_state = Done;
 
-    m_asyncEventQueue->enqueueEvent(event.release());
+    promiseResolver()->fulfill(Key::create(key));
 }
 
-const AtomicString& SourceBufferList::interfaceName() const
+ScriptObject KeyOperation::returnValue(ExceptionCode& ec)
 {
-    return eventNames().interfaceForSourceBufferList;
+    ASSERT(m_state != Initializing);
+
+    if (m_exceptionCode) {
+        ec = m_exceptionCode;
+        return ScriptObject();
+    }
+
+    return promiseResolver()->promise();
 }
 
-ScriptExecutionContext* SourceBufferList::scriptExecutionContext() const
+ScriptPromiseResolver* KeyOperation::promiseResolver()
 {
-    return m_scriptExecutionContext;
-}
-
-EventTargetData* SourceBufferList::eventTargetData()
-{
-    return &m_eventTargetData;
-}
-
-EventTargetData* SourceBufferList::ensureEventTargetData()
-{
-    return &m_eventTargetData;
+    if (!m_promiseResolver)
+        m_promiseResolver = ScriptPromiseResolver::create();
+    return m_promiseResolver.get();
 }
 
 } // namespace WebCore