Make navigator.serviceWorker.ready resolve with the controller.

Source/modules/serviceworkers/ServiceWorkerContainer.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 14 matching lines @@
  * 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/serviceworkers/ServiceWorkerContainer.h"
 
 #include "RuntimeEnabledFeatures.h"
 #include "bindings/v8/CallbackPromiseAdapter.h"
+#include "bindings/v8/ScriptPromise.h"
 #include "bindings/v8/ScriptPromiseResolverWithContext.h"
 #include "bindings/v8/ScriptState.h"
 #include "bindings/v8/SerializedScriptValue.h"
 #include "core/dom/DOMException.h"
 #include "core/dom/Document.h"
 #include "core/dom/ExceptionCode.h"
 #include "core/dom/ExecutionContext.h"
 #include "core/dom/MessagePort.h"
 #include "core/events/MessageEvent.h"
 #include "modules/serviceworkers/RegistrationOptionList.h"
@@ skipping 89 matching lines @@
     patternURL.removeFragmentIdentifier();
     if (!pattern.isEmpty() && !documentOrigin->canRequest(patternURL)) {
         resolver->reject(DOMException::create(SecurityError, "Can only unregister for patterns in the document's origin."));
         return promise;
     }
 
     m_provider->unregisterServiceWorker(patternURL, new CallbackPromiseAdapter<UndefinedValue, ServiceWorkerError>(resolver));
     return promise;
 }
 
+ScriptPromise ServiceWorkerContainer::ready(ScriptState* scriptState)
+{
+    if (m_controller.get()) {
+        RefPtr<ScriptPromiseResolver> resolver = ScriptPromiseResolver::create(scriptState);
+        ScriptPromise promise = resolver->promise();
+        resolver->resolve(m_controller.get());
+        return promise;
+    }
+    // FIXME: Elaborate the implementation when the "waiting" property
+    // or replace() is implemented.
+    return ScriptPromise();
+}
+
 void ServiceWorkerContainer::setCurrentServiceWorker(blink::WebServiceWorker* serviceWorker)
 {
     setController(serviceWorker);
 }
 
 void ServiceWorkerContainer::setController(blink::WebServiceWorker* serviceWorker)
 {
     if (!executionContext()) {
         delete serviceWorker;
         return;
@@ skipping 22 matching lines @@
         return;
 
     if (ServiceWorkerContainerClient* client = ServiceWorkerContainerClient::from(executionContext)) {
         m_provider = client->provider();
         if (m_provider)
             m_provider->setClient(this);
     }
 }
 
 } // namespace WebCore