tenfourfox/dom/push/PushManager.h
Cameron Kaiser c9b2922b70 hello FPR
2017-04-19 00:56:45 -07:00

255 lines
6.6 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/. */
/**
* We would like to expose PushManager and PushSubscription on window and
* workers. Parts of the Push API is implemented in JS out of necessity due to:
* 1) Using frame message managers, in which
* nsIMessageListener::receiveMessage() must be in JS.
* 2) It is easier to use certain APIs like the permission prompt and Promises
* from JS.
*
* Unfortunately, JS-implemented WebIDL is not supported off the main thread. To
* aid in fixing this, the nsIPushClient is introduced which deals with part (1)
* above. Part (2) is handled by PushManagerImpl on the main thread. PushManager
* wraps this in C++ since our bindings code cannot accomodate "JS-implemented
* on the main thread, C++ on the worker" bindings. PushManager simply forwards
* the calls to the JS component.
*
* On the worker threads, we don't have to deal with permission prompts, instead
* we just reject calls if the principal does not have permission. On workers
* WorkerPushManager dispatches runnables to the main thread which directly call
* nsIPushClient.
*
* 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 "mozilla/RefPtr.h"
#include "jsapi.h"
class nsIGlobalObject;
class nsIPrincipal;
#include "mozilla/dom/PushSubscriptionBinding.h"
namespace mozilla {
namespace dom {
namespace workers {
class WorkerPrivate;
}
class Promise;
class PushManagerImpl;
class PushSubscription final : public nsISupports
, public nsWrapperCache
{
public:
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(PushSubscription)
explicit PushSubscription(nsIGlobalObject* aGlobal,
const nsAString& aEndpoint,
const nsAString& aScope,
const nsTArray<uint8_t>& aP256dhKey,
const nsTArray<uint8_t>& aAuthSecret);
JSObject*
WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
nsIGlobalObject*
GetParentObject() const
{
return mGlobal;
}
void
GetEndpoint(nsAString& aEndpoint) const
{
aEndpoint = mEndpoint;
}
void
GetKey(JSContext* cx,
PushEncryptionKeyName aType,
JS::MutableHandle<JSObject*> aKey);
static already_AddRefed<PushSubscription>
Constructor(GlobalObject& aGlobal,
const nsAString& aEndpoint,
const nsAString& aScope,
const Nullable<ArrayBuffer>& aP256dhKey,
const Nullable<ArrayBuffer>& aAuthSecret,
ErrorResult& aRv);
void
SetPrincipal(nsIPrincipal* aPrincipal);
already_AddRefed<Promise>
Unsubscribe(ErrorResult& aRv);
protected:
~PushSubscription();
private:
nsCOMPtr<nsIGlobalObject> mGlobal;
nsCOMPtr<nsIPrincipal> mPrincipal;
nsString mEndpoint;
nsString mScope;
nsTArray<uint8_t> mRawP256dhKey;
nsTArray<uint8_t> mAuthSecret;
};
class PushManager final : public nsISupports
, public nsWrapperCache
{
public:
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(PushManager)
explicit PushManager(nsIGlobalObject* aGlobal, const nsAString& aScope);
nsIGlobalObject*
GetParentObject() const
{
return mGlobal;
}
JSObject*
WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
already_AddRefed<Promise>
Subscribe(ErrorResult& aRv);
already_AddRefed<Promise>
GetSubscription(ErrorResult& aRv);
already_AddRefed<Promise>
PermissionState(ErrorResult& aRv);
void
SetPushManagerImpl(PushManagerImpl& foo, ErrorResult& aRv);
protected:
~PushManager();
private:
nsCOMPtr<nsIGlobalObject> mGlobal;
RefPtr<PushManagerImpl> mImpl;
nsString mScope;
};
class WorkerPushSubscription final : public nsISupports
, public nsWrapperCache
{
public:
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(WorkerPushSubscription)
explicit WorkerPushSubscription(const nsAString& aEndpoint,
const nsAString& aScope,
const nsTArray<uint8_t>& aRawP256dhKey,
const nsTArray<uint8_t>& aAuthSecret);
nsIGlobalObject*
GetParentObject() const
{
return nullptr;
}
JSObject*
WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
static already_AddRefed<WorkerPushSubscription>
Constructor(GlobalObject& aGlobal,
const nsAString& aEndpoint,
const nsAString& aScope,
const Nullable<ArrayBuffer>& aP256dhKey,
const Nullable<ArrayBuffer>& aAuthSecret,
ErrorResult& aRv);
void
GetEndpoint(nsAString& aEndpoint) const
{
aEndpoint = mEndpoint;
}
void
GetKey(JSContext* cx, PushEncryptionKeyName aType,
JS::MutableHandle<JSObject*> aP256dhKey);
already_AddRefed<Promise>
Unsubscribe(ErrorResult& aRv);
protected:
~WorkerPushSubscription();
private:
nsString mEndpoint;
nsString mScope;
nsTArray<uint8_t> mRawP256dhKey;
nsTArray<uint8_t> mAuthSecret;
};
class WorkerPushManager final : public nsISupports
, public nsWrapperCache
{
public:
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(WorkerPushManager)
enum SubscriptionAction {
SubscribeAction,
GetSubscriptionAction,
};
explicit WorkerPushManager(const nsAString& aScope);
nsIGlobalObject*
GetParentObject() const
{
return nullptr;
}
JSObject*
WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
already_AddRefed<Promise>
PerformSubscriptionAction(SubscriptionAction aAction, ErrorResult& aRv);
already_AddRefed<Promise>
Subscribe(ErrorResult& aRv);
already_AddRefed<Promise>
GetSubscription(ErrorResult& aRv);
already_AddRefed<Promise>
PermissionState(ErrorResult& aRv);
protected:
~WorkerPushManager();
private:
nsString mScope;
};
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_PushManager_h