| // Copyright 2020 The Chromium OS 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 RUNTIME_PROBE_FUNCTIONS_INPUT_DEVICE_H_ |
| #define RUNTIME_PROBE_FUNCTIONS_INPUT_DEVICE_H_ |
| |
| #include <memory> |
| #include <string> |
| |
| #include "runtime_probe/probe_function.h" |
| |
| namespace runtime_probe { |
| |
| // Probe input devices on the system. |
| // |
| // This function takes one optional string argument "device_type", which could |
| // be "stylus", "touchpad", "touchscreen", and "unknown". If "device_type" is |
| // not specified, this function will output all input devices. |
| // |
| // Example probe statement:: |
| // { |
| // "device_type": "touchscreen" |
| // } |
| class InputDeviceFunction : public PrivilegedProbeFunction { |
| using PrivilegedProbeFunction::PrivilegedProbeFunction; |
| |
| public: |
| NAME_PROBE_FUNCTION("input_device"); |
| |
| template <typename T> |
| static auto FromKwargsValue(const base::Value& dict_value) { |
| PARSE_BEGIN(); |
| PARSE_ARGUMENT(device_type, std::string("")); |
| PARSE_END(); |
| } |
| |
| private: |
| DataType EvalImpl() const override; |
| |
| std::string device_type_; |
| }; |
| |
| } // namespace runtime_probe |
| |
| #endif // RUNTIME_PROBE_FUNCTIONS_INPUT_DEVICE_H_ |