ServiceWorker: Implement ServiceWorkerRegistration [1/3]

Source/modules/serviceworkers/ServiceWorkerRegistration.cpp

Index: Source/modules/serviceworkers/ServiceWorkerRegistration.cpp
diff --git a/Source/modules/serviceworkers/ServiceWorkerRegistration.cpp b/Source/modules/serviceworkers/ServiceWorkerRegistration.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..562b289d593064987e762a8f04dcca9ff063a0f8
--- /dev/null
+++ b/Source/modules/serviceworkers/ServiceWorkerRegistration.cpp
@@ -0,0 +1,99 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "config.h"
+#include "ServiceWorkerRegistration.h"
+
+#include "bindings/core/v8/CallbackPromiseAdapter.h"
+#include "bindings/core/v8/ScriptPromise.h"
+#include "bindings/core/v8/ScriptPromiseResolver.h"
+#include "bindings/core/v8/ScriptState.h"
+#include "core/dom/DOMException.h"
+#include "core/dom/ExceptionCode.h"
+#include "core/dom/ExecutionContext.h"
+#include "modules/EventTargetModules.h"
+#include "modules/serviceworkers/ServiceWorkerContainerClient.h"
+#include "modules/serviceworkers/ServiceWorkerError.h"
+#include "public/platform/WebServiceWorkerProvider.h"
+
+namespace blink {
+
+class UndefinedValue {
+public:
+#ifdef DISABLE_SERVICE_WORKER_REGISTRATION
+    typedef WebServiceWorker WebType;
+#else
+    typedef WebServiceWorkerRegistration WebType;
+#endif
+    static V8UndefinedType from(ScriptPromiseResolver* resolver, WebType* registration)
+    {
+        ASSERT(!registration); // Anything passed here will be leaked.
+        return V8UndefinedType();
+    }
+
+private:
+    UndefinedValue();
+};
+
+const AtomicString& ServiceWorkerRegistration::interfaceName() const
+{
+    return EventTargetNames::ServiceWorkerRegistration;
+}
+
+PassRefPtrWillBeRawPtr<ServiceWorkerRegistration> ServiceWorkerRegistration::from(ScriptPromiseResolver* resolver, WebType* registration)
+{
+    if (!registration)
+        return nullptr;
+    return create(resolver->scriptState()->executionContext(), adoptPtr(registration));
+}
+
+String ServiceWorkerRegistration::scope() const
+{
+    return m_outerRegistration->scope().string();
+}
+
+ScriptPromise ServiceWorkerRegistration::unregister(ScriptState* scriptState)
+{
+    RefPtr<ScriptPromiseResolver> resolver = ScriptPromiseResolver::create(scriptState);
+    ScriptPromise promise = resolver->promise();
+
+    if (!m_provider) {
+        resolver->reject(DOMException::create(InvalidStateError, "No associated provider is available"));
+        return promise;
+    }
+
+    RefPtr<SecurityOrigin> documentOrigin = scriptState->executionContext()->securityOrigin();
+    KURL scopeURL = scriptState->executionContext()->completeURL(scope());
+    scopeURL.removeFragmentIdentifier();
+    if (!scope().isEmpty() && !documentOrigin->canRequest(scopeURL)) {
+        resolver->reject(DOMException::create(SecurityError, "Can only unregister for scopes in the document's origin."));
+        return promise;
+    }
+
+    m_provider->unregisterServiceWorker(scopeURL, new CallbackPromiseAdapter<UndefinedValue, ServiceWorkerError>(resolver));
+    return promise;
+}
+
+PassRefPtrWillBeRawPtr<ServiceWorkerRegistration> ServiceWorkerRegistration::create(ExecutionContext* executionContext, PassOwnPtr<WebServiceWorkerRegistration> outerRegistration)
+{
+    RefPtrWillBeRawPtr<ServiceWorkerRegistration> registration = adoptRefWillBeRefCountedGarbageCollected(new ServiceWorkerRegistration(executionContext, outerRegistration));
+    registration->suspendIfNeeded();
+    return registration.release();
+}
+
+ServiceWorkerRegistration::ServiceWorkerRegistration(ExecutionContext* executionContext, PassOwnPtr<WebServiceWorkerRegistration> outerRegistration)
+    : ActiveDOMObject(executionContext)
+    , m_outerRegistration(outerRegistration)
+    , m_provider(0)
+{
+    ASSERT(m_outerRegistration);
+    ScriptWrappable::init(this);
+
+    if (!executionContext)
+        return;
+    if (ServiceWorkerContainerClient* client = ServiceWorkerContainerClient::from(executionContext))
+        m_provider = client->provider();
+}
+
+} // namespace blink