gecko-dev/dom/workers/DataStore.h
2015-05-03 15:32:37 -04:00

139 lines
4.1 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_dom_workers_DataStore_h
#define mozilla_dom_workers_DataStore_h
#include "mozilla/DOMEventTargetHelper.h"
#include "nsProxyRelease.h"
#include "WorkerFeature.h"
namespace mozilla {
class ErrorResult;
namespace dom {
class Promise;
class DataStore;
class StringOrUnsignedLong;
class OwningStringOrUnsignedLong;
namespace workers {
class DataStoreChangeEventProxy;
class WorkerDataStoreCursor;
class WorkerGlobalScope;
class WorkerDataStore final : public DOMEventTargetHelper
{
public:
NS_DECL_ISUPPORTS_INHERITED
explicit WorkerDataStore(WorkerGlobalScope* aScope);
// WebIDL (internal functions)
static already_AddRefed<WorkerDataStore> Constructor(GlobalObject& aGlobal,
ErrorResult& aRv);
virtual JSObject* WrapObject(JSContext *aCx, JS::Handle<JSObject*> aGivenProto) override;
// WebIDL (public APIs)
void GetName(JSContext* aCx, nsAString& aName, ErrorResult& aRv);
void GetOwner(JSContext* aCx, nsAString& aOwner, ErrorResult& aRv);
bool GetReadOnly(JSContext* aCx, ErrorResult& aRv);
already_AddRefed<Promise> Get(JSContext* aCx,
const Sequence<OwningStringOrUnsignedLong>& aId,
ErrorResult& aRv);
already_AddRefed<Promise> Put(JSContext* aCx,
JS::Handle<JS::Value> aObj,
const StringOrUnsignedLong& aId,
const nsAString& aRevisionId,
ErrorResult& aRv);
already_AddRefed<Promise> Add(JSContext* aCx,
JS::Handle<JS::Value> aObj,
const Optional<StringOrUnsignedLong>& aId,
const nsAString& aRevisionId,
ErrorResult& aRv);
already_AddRefed<Promise> Remove(JSContext* aCx,
const StringOrUnsignedLong& aId,
const nsAString& aRevisionId,
ErrorResult& aRv);
already_AddRefed<Promise> Clear(JSContext* aCx,
const nsAString& aRevisionId,
ErrorResult& aRv);
void GetRevisionId(JSContext* aCx, nsAString& aRevisionId, ErrorResult& aRv);
already_AddRefed<Promise> GetLength(JSContext* aCx, ErrorResult& aRv);
already_AddRefed<WorkerDataStoreCursor> Sync(JSContext* aCx,
const nsAString& aRevisionId,
ErrorResult& aRv);
IMPL_EVENT_HANDLER(change)
void SetBackingDataStore(
const nsMainThreadPtrHandle<DataStore>& aBackingStore);
void SetDataStoreChangeEventProxy(DataStoreChangeEventProxy* aEventProxy);
protected:
virtual ~WorkerDataStore() {}
private:
nsMainThreadPtrHandle<DataStore> mBackingStore;
nsRefPtr<DataStoreChangeEventProxy> mEventProxy;
};
class DataStoreChangeEventProxy final : public nsIDOMEventListener
, public WorkerFeature
{
public:
NS_DECL_THREADSAFE_ISUPPORTS
NS_DECL_NSIDOMEVENTLISTENER
DataStoreChangeEventProxy(WorkerPrivate* aWorkerPrivate,
WorkerDataStore* aWorkerStore);
WorkerPrivate* GetWorkerPrivate() const;
WorkerDataStore* GetWorkerStore() const;
protected:
// WorkerFeature implementation.
bool Notify(JSContext* aCx, Status aStatus) override;
private:
~DataStoreChangeEventProxy() {};
WorkerPrivate* mWorkerPrivate;
nsRefPtr<WorkerDataStore> mWorkerStore;
bool mCleanedUp; // To specify if the worker has been cancelled.
// Ensure the worker and the main thread won't race to access |mCleanedUp|.
Mutex mCleanUpLock;
};
} //namespace workers
} //namespace dom
} //namespace mozilla
#endif