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// Copyright 2019 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef THIRD_PARTY_BLINK_RENDERER_MODULES_WAKE_LOCK_WAKE_LOCK_STATE_RECORD_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_WAKE_LOCK_WAKE_LOCK_STATE_RECORD_H_
#include "base/gtest_prod_util.h"
#include "services/device/public/mojom/wake_lock.mojom-blink.h"
#include "third_party/blink/renderer/modules/modules_export.h"
#include "third_party/blink/renderer/modules/wake_lock/wake_lock_type.h"
#include "third_party/blink/renderer/platform/heap/handle.h"
namespace blink {
class Document;
class ScriptPromiseResolver;
// https://w3c.github.io/wake-lock/#concepts-and-state-record
// Per-document and per-wake lock type internal data.
class MODULES_EXPORT WakeLockStateRecord
: public GarbageCollectedFinalized<WakeLockStateRecord> {
public:
WakeLockStateRecord(Document*, WakeLockType);
void AcquireWakeLock(ScriptPromiseResolver*);
void ReleaseWakeLock(ScriptPromiseResolver*);
void ClearWakeLocks();
void Trace(blink::Visitor* visitor);
private:
using ActiveLocksType = HeapHashSet<Member<ScriptPromiseResolver>>;
friend class WakeLockControllerTest;
// Actually releases a given wake lock. Callers are responsible for passing a
// valid |iterator|.
void ReleaseWakeLock(ActiveLocksType::iterator iterator);
// Handle connection errors from |wake_lock_|.
void OnWakeLockConnectionError();
// A list of Promises representing active wake locks associated with the
// responsible document.
ActiveLocksType active_locks_;
// An actual platform WakeLock. If bound, it means there is an active wake
// lock for a given type.
device::mojom::blink::WakeLockPtr wake_lock_;
device::mojom::blink::WakeLockType wake_lock_type_;
// Document from which we will connect to |wake_lock_service_|.
Member<Document> document_;
FRIEND_TEST_ALL_PREFIXES(WakeLockStateRecordTest, AcquireWakeLock);
FRIEND_TEST_ALL_PREFIXES(WakeLockStateRecordTest, ReleaseAllWakeLocks);
FRIEND_TEST_ALL_PREFIXES(WakeLockStateRecordTest, ReleaseNonExistentWakeLock);
FRIEND_TEST_ALL_PREFIXES(WakeLockStateRecordTest, ReleaseOneWakeLock);
FRIEND_TEST_ALL_PREFIXES(WakeLockStateRecordTest, ClearWakeLocks);
FRIEND_TEST_ALL_PREFIXES(WakeLockStateRecordTest, WakeLockConnectionError);
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_MODULES_WAKE_LOCK_WAKE_LOCK_STATE_RECORD_H_
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