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/* -*- 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/. */
/**
* PushManager and PushSubscription are exposed on the main and worker threads.
* The main thread version is implemented in Push.js. The JS implementation
* makes it easier to use certain APIs like the permission prompt and Promises.
*
* Unfortunately, JS-implemented WebIDL is not supported off the main thread.
* To work around this, we use a chain of runnables to query the JS-implemented
* nsIPushService component for subscription information, and return the
* results to the worker. We don't have to deal with permission prompts, since
* we just reject calls if the principal does not have permission.
*
* On the main thread, PushManager wraps a JS-implemented PushManagerImpl
* instance. The C++ wrapper is necessary because our bindings code cannot
* accomodate "JS-implemented on the main thread, C++ on the worker" bindings.
*
* PushSubscription is in C++ on both threads since it isn't particularly
* verbose to implement in C++ compared to JS.
*/
#ifndef mozilla_dom_PushManager_h
#define mozilla_dom_PushManager_h
#include "nsWrapperCache.h"
#include "mozilla/AlreadyAddRefed.h"
#include "mozilla/ErrorResult.h"
#include "mozilla/dom/BindingDeclarations.h"
#include "mozilla/dom/TypedArray.h"
#include "nsCOMPtr.h"
#include "nsContentUtils.h" // Required for nsContentUtils::PushEnabled
#include "mozilla/RefPtr.h"
class nsIGlobalObject;
class nsIPrincipal;
namespace mozilla {
namespace dom {
namespace workers {
class WorkerPrivate;
}
class Promise;
class PushManagerImpl;
struct PushSubscriptionOptionsInit;
class PushManager final : public nsISupports
, public nsWrapperCache
{
public:
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(PushManager)
enum SubscriptionAction {
SubscribeAction,
GetSubscriptionAction,
};
// The main thread constructor.
PushManager(nsIGlobalObject* aGlobal, PushManagerImpl* aImpl);
// The worker thread constructor.
explicit PushManager(const nsAString& aScope);
nsIGlobalObject*
GetParentObject() const
{
return mGlobal;
}
JSObject*
WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
static already_AddRefed<PushManager>
Constructor(GlobalObject& aGlobal, const nsAString& aScope,
ErrorResult& aRv);
already_AddRefed<Promise>
PerformSubscriptionActionFromWorker(SubscriptionAction aAction,
ErrorResult& aRv);
already_AddRefed<Promise>
PerformSubscriptionActionFromWorker(SubscriptionAction aAction,
const PushSubscriptionOptionsInit& aOptions,
ErrorResult& aRv);
already_AddRefed<Promise>
Subscribe(const PushSubscriptionOptionsInit& aOptions, ErrorResult& aRv);
already_AddRefed<Promise>
GetSubscription(ErrorResult& aRv);
already_AddRefed<Promise>
PermissionState(const PushSubscriptionOptionsInit& aOptions,
ErrorResult& aRv);
private:
~PushManager();
// The following are only set and accessed on the main thread.
nsCOMPtr<nsIGlobalObject> mGlobal;
RefPtr<PushManagerImpl> mImpl;
// Only used on the worker thread.
nsString mScope;
};
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_PushManager_h
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