gecko-dev/dom/html/AutoplayPermissionRequest.cpp

85 строки
2.8 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/. */
#include "mozilla/AutoplayPermissionRequest.h"
#include "mozilla/AutoplayPermissionManager.h"
#include "mozilla/Logging.h"
extern mozilla::LazyLogModule gAutoplayPermissionLog;
#define PLAY_REQUEST_LOG(msg, ...) \
MOZ_LOG(gAutoplayPermissionLog, LogLevel::Debug, (msg, ##__VA_ARGS__))
namespace mozilla {
NS_IMPL_CYCLE_COLLECTION_INHERITED(AutoplayPermissionRequest,
ContentPermissionRequestBase)
NS_IMPL_ISUPPORTS_CYCLE_COLLECTION_INHERITED_0(AutoplayPermissionRequest,
ContentPermissionRequestBase)
AutoplayPermissionRequest::AutoplayPermissionRequest(
AutoplayPermissionManager* aManager,
nsGlobalWindowInner* aWindow,
nsIPrincipal* aNodePrincipal,
nsIEventTarget* aMainThreadTarget)
: ContentPermissionRequestBase(aNodePrincipal, false, aWindow,
NS_LITERAL_CSTRING(""), // No testing pref used in this class
NS_LITERAL_CSTRING("autoplay-media"))
, mManager(aManager)
, mMainThreadTarget(aMainThreadTarget)
{
}
AutoplayPermissionRequest::~AutoplayPermissionRequest()
{
Cancel();
}
NS_IMETHODIMP
AutoplayPermissionRequest::Cancel()
{
if (mManager) {
mManager->DenyPlayRequestIfExists();
// Clear reference to manager, so we can't double report a result.
// This could happen in particular if we call Cancel() in the destructor.
mManager = nullptr;
}
return NS_OK;
}
NS_IMETHODIMP
AutoplayPermissionRequest::Allow(JS::HandleValue aChoices)
{
if (mManager) {
mManager->ApprovePlayRequestIfExists();
// Clear reference to manager, so we can't double report a result.
// This could happen in particular if we call Cancel() in the destructor.
mManager = nullptr;
}
return NS_OK;
}
already_AddRefed<AutoplayPermissionRequest>
AutoplayPermissionRequest::Create(nsGlobalWindowInner* aWindow,
AutoplayPermissionManager* aManager)
{
if (!aWindow || !aWindow->GetPrincipal() ||
!aWindow->EventTargetFor(TaskCategory::Other)) {
return nullptr;
}
RefPtr<AutoplayPermissionRequest> request =
new AutoplayPermissionRequest(aManager,
aWindow,
aWindow->GetPrincipal(),
aWindow->EventTargetFor(TaskCategory::Other));
PLAY_REQUEST_LOG("AutoplayPermissionRequest %p Create()", request.get());
return request.forget();
}
} // namespace mozilla