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// Copyright 2015 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 CONTENT_CHILD_BACKGROUND_SYNC_BACKGROUND_SYNC_PROVIDER_THREAD_PROXY_H_
#define CONTENT_CHILD_BACKGROUND_SYNC_BACKGROUND_SYNC_PROVIDER_THREAD_PROXY_H_
#include "base/macros.h"
#include "content/child/worker_task_runner.h"
#include "third_party/WebKit/public/platform/modules/background_sync/WebSyncProvider.h"
namespace base {
class SingleThreadTaskRunner;
}
namespace content {
class BackgroundSyncProvider;
// BackgroundSyncProviderThreadProxy is a proxy to the BackgroundSyncProvider
// for callers running on a different thread than the main thread. There is one
// instance per worker thread.
//
// This class handles all of the thread switching, jumping to the main thread to
// call the WebSyncProvider methods, and wrapping the callbacks passed in with
// code to switch back to the original calling thread.
class BackgroundSyncProviderThreadProxy : public blink::WebSyncProvider,
public WorkerTaskRunner::Observer {
public:
static BackgroundSyncProviderThreadProxy* GetThreadInstance(
base::SingleThreadTaskRunner* main_thread_task_runner,
BackgroundSyncProvider* permissions_dispatcher);
// blink::WebSyncProvider implementation
void registerBackgroundSync(
const blink::WebSyncRegistration* options,
blink::WebServiceWorkerRegistration* service_worker_registration,
blink::WebSyncRegistrationCallbacks* callbacks);
void unregisterBackgroundSync(
blink::WebSyncRegistration::Periodicity periodicity,
int64_t id,
const blink::WebString& tag,
blink::WebServiceWorkerRegistration* service_worker_registration,
blink::WebSyncUnregistrationCallbacks* callbacks);
void getRegistration(
blink::WebSyncRegistration::Periodicity,
const blink::WebString& tag,
blink::WebServiceWorkerRegistration* service_worker_registration,
blink::WebSyncRegistrationCallbacks* callbacks);
void getRegistrations(
blink::WebSyncRegistration::Periodicity periodicity,
blink::WebServiceWorkerRegistration* service_worker_registration,
blink::WebSyncGetRegistrationsCallbacks* callbacks);
void getPermissionStatus(
blink::WebSyncRegistration::Periodicity periodicity,
blink::WebServiceWorkerRegistration* service_worker_registration,
blink::WebSyncGetPermissionStatusCallbacks* callbacks);
// WorkerTaskRunner::Observer implementation.
void OnWorkerRunLoopStopped() override;
private:
BackgroundSyncProviderThreadProxy(
base::SingleThreadTaskRunner* main_thread_task_runner,
BackgroundSyncProvider* sync_provider);
virtual ~BackgroundSyncProviderThreadProxy();
scoped_refptr<base::SingleThreadTaskRunner> main_thread_task_runner_;
// This belongs to the renderer main thread, (created by BlinkPlatformImpl)
// and so should outlive the BackgroundSyncProviderThreadProxy, which is
// created for a worker thread.
BackgroundSyncProvider* sync_provider_;
DISALLOW_COPY_AND_ASSIGN(BackgroundSyncProviderThreadProxy);
};
} // namespace content
#endif // CONTENT_CHILD_BACKGROUND_SYNC_BACKGROUND_SYNC_PROVIDER_THREAD_PROXY_H_
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