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diff --git a/modules/input/evdev/InputDeviceManager.h b/modules/input/evdev/InputDeviceManager.h
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+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_INPUT_DEVICE_MANAGER_H_
+#define ANDROID_INPUT_DEVICE_MANAGER_H_
+
+#include <memory>
+#include <unordered_map>
+
+#include <utils/Timers.h>
+
+#include "InputDevice.h"
+#include "InputHub.h"
+
+namespace android {
+
+/**
+ * InputDeviceManager keeps the mapping of InputDeviceNodes to
+ * InputDeviceInterfaces and handles the callbacks from the InputHub, delegating
+ * them to the appropriate InputDeviceInterface.
+ */
+class InputDeviceManager : public InputCallbackInterface {
+public:
+    virtual ~InputDeviceManager() override = default;
+
+    virtual void onInputEvent(std::shared_ptr<InputDeviceNode> node, InputEvent& event,
+            nsecs_t event_time) override;
+    virtual void onDeviceAdded(std::shared_ptr<InputDeviceNode> node) override;
+    virtual void onDeviceRemoved(std::shared_ptr<InputDeviceNode> node) override;
+
+private:
+    template<class T, class U>
+    using DeviceMap = std::unordered_map<std::shared_ptr<T>, std::shared_ptr<U>>;
+
+    DeviceMap<InputDeviceNode, InputDeviceInterface> mDevices;
+};
+
+}  // namespace android
+
+#endif  // ANDROID_INPUT_DEVICE_MANAGER_H_