| // 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. |
| |
| #ifndef RespondWithObserver_h |
| #define RespondWithObserver_h |
| |
| #include "core/dom/ContextLifecycleObserver.h" |
| #include "platform/heap/Handle.h" |
| #include "wtf/Forward.h" |
| #include "wtf/RefCounted.h" |
| |
| namespace blink { |
| |
| class ExecutionContext; |
| class Response; |
| class ScriptState; |
| class ScriptValue; |
| |
| // This class observes the service worker's handling of a FetchEvent and |
| // notifies the client. |
| class RespondWithObserver FINAL : public ContextLifecycleObserver, public RefCounted<RespondWithObserver> { |
| public: |
| static PassRefPtr<RespondWithObserver> create(ExecutionContext*, int eventID); |
| ~RespondWithObserver(); |
| |
| virtual void contextDestroyed() OVERRIDE; |
| |
| void didDispatchEvent(); |
| |
| // Observes the promise and delays calling didHandleFetchEvent() until the |
| // given promise is resolved or rejected. |
| void respondWith(ScriptState*, const ScriptValue&); |
| |
| void responseWasRejected(); |
| void responseWasFulfilled(const ScriptValue&); |
| |
| private: |
| class ThenFunction; |
| |
| RespondWithObserver(ExecutionContext*, int eventID); |
| |
| // Sends a response back to the client. The null response means to fallback |
| // to native. |
| void sendResponse(PassRefPtrWillBeRawPtr<Response>); |
| |
| int m_eventID; |
| |
| enum State { Initial, Pending, Done }; |
| State m_state; |
| }; |
| |
| } // namespace blink |
| |
| #endif // RespondWithObserver_h |