Home | History | Annotate | Download | only in evdev
      1 /*
      2  * Copyright (C) 2015 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #ifndef ANDROID_INPUT_DEVICE_MANAGER_H_
     18 #define ANDROID_INPUT_DEVICE_MANAGER_H_
     19 
     20 #include <memory>
     21 #include <unordered_map>
     22 
     23 #include <utils/Timers.h>
     24 
     25 #include "InputDevice.h"
     26 #include "InputHub.h"
     27 
     28 namespace android {
     29 
     30 /**
     31  * InputDeviceManager keeps the mapping of InputDeviceNodes to
     32  * InputDeviceInterfaces and handles the callbacks from the InputHub, delegating
     33  * them to the appropriate InputDeviceInterface.
     34  */
     35 class InputDeviceManager : public InputCallbackInterface {
     36 public:
     37     virtual ~InputDeviceManager() override = default;
     38 
     39     virtual void onInputEvent(std::shared_ptr<InputDeviceNode> node, InputEvent& event,
     40             nsecs_t event_time) override;
     41     virtual void onDeviceAdded(std::shared_ptr<InputDeviceNode> node) override;
     42     virtual void onDeviceRemoved(std::shared_ptr<InputDeviceNode> node) override;
     43 
     44 private:
     45     template<class T, class U>
     46     using DeviceMap = std::unordered_map<std::shared_ptr<T>, std::shared_ptr<U>>;
     47 
     48     DeviceMap<InputDeviceNode, InputDeviceInterface> mDevices;
     49 };
     50 
     51 }  // namespace android
     52 
     53 #endif  // ANDROID_INPUT_DEVICE_MANAGER_H_
     54