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77 lines
2.5 KiB
C++
77 lines
2.5 KiB
C++
// Copyright 2023 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef THIRD_PARTY_NEARBY_INTERNAL_PLATFORM_IMPLEMENTATION_WINDOWS_SESSION_MANAGER_H_
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#define THIRD_PARTY_NEARBY_INTERNAL_PLATFORM_IMPLEMENTATION_WINDOWS_SESSION_MANAGER_H_
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#include <string>
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#include "absl/container/flat_hash_map.h"
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#include "absl/container/flat_hash_set.h"
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#include "absl/functional/any_invocable.h"
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#include "absl/strings/string_view.h"
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#include "absl/synchronization/mutex.h"
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#include "absl/synchronization/notification.h"
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#include "internal/platform/implementation/windows/submittable_executor.h"
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namespace nearby {
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namespace windows {
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// SessionManager provides methods to access/control platform session.
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class SessionManager {
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public:
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enum class SessionState { kLock, kUnlock };
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~SessionManager();
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// Setups session listener.
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// listener_name - Listener name. it should be unique in the SDK level.
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// callback - It will be called when session state changed, such as
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// lock/unlock screen.
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bool RegisterSessionListener(absl::string_view listener_name,
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absl::AnyInvocable<void(SessionState)> callback);
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// Removes session listener by its name.
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bool UnregisterSessionListener(absl::string_view listener_name);
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bool IsScreenLocked() const;
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// Prevents the Windows device from sleeping state.
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bool PreventSleep() const;
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// Allows the Windows device to sleep state.
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bool AllowSleep() const;
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static void NotifySessionState(SessionState state);
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private:
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void StartSession(absl::Notification& notification);
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void StopSession();
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void CleanUp();
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absl::flat_hash_set<std::string> listeners_;
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// Static class members
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static absl::Mutex session_mutex_;
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static HWND session_hwnd_;
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static SubmittableExecutor* session_thread_;
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static absl::flat_hash_map<
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std::string, absl::AnyInvocable<void(SessionManager::SessionState)>>*
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session_callbacks_;
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};
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} // namespace windows
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} // namespace nearby
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#endif // THIRD_PARTY_NEARBY_INTERNAL_PLATFORM_IMPLEMENTATION_WINDOWS_SESSION_MANAGER_H_
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