gecko-dev/dom/presentation/PresentationAvailability.h

74 строки
2.1 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* 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_PresentationAvailability_h
#define mozilla_dom_PresentationAvailability_h
#include "mozilla/DOMEventTargetHelper.h"
#include "nsIPresentationListener.h"
#include "nsTArray.h"
namespace mozilla {
namespace dom {
class Promise;
class PresentationAvailability final : public DOMEventTargetHelper
, public nsIPresentationAvailabilityListener
, public SupportsWeakPtr<PresentationAvailability>
{
public:
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(PresentationAvailability,
DOMEventTargetHelper)
NS_DECL_NSIPRESENTATIONAVAILABILITYLISTENER
MOZ_DECLARE_WEAKREFERENCE_TYPENAME(PresentationAvailability)
static already_AddRefed<PresentationAvailability>
Create(nsPIDOMWindowInner* aWindow,
const nsTArray<nsString>& aUrls,
RefPtr<Promise>& aPromise);
virtual void DisconnectFromOwner() override;
virtual JSObject* WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) override;
bool Equals(const uint64_t aWindowID, const nsTArray<nsString>& aUrls) const;
bool IsCachedValueReady();
void EnqueuePromise(RefPtr<Promise>& aPromise);
// WebIDL (public APIs)
bool Value() const;
IMPL_EVENT_HANDLER(change);
private:
explicit PresentationAvailability(nsPIDOMWindowInner* aWindow,
const nsTArray<nsString>& aUrls);
virtual ~PresentationAvailability();
bool Init(RefPtr<Promise>& aPromise);
void Shutdown();
void UpdateAvailabilityAndDispatchEvent(bool aIsAvailable);
bool mIsAvailable;
nsTArray<RefPtr<Promise>> mPromises;
nsTArray<nsString> mUrls;
};
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_PresentationAvailability_h