1 /* 2 * Copyright (c) 2021-2022 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef INPUT_HANDLER_TYPE_H 17 #define INPUT_HANDLER_TYPE_H 18 #include <limits> 19 20 namespace OHOS { 21 namespace MMI { 22 namespace { 23 constexpr size_t MAX_N_INPUT_HANDLERS { 16 }; 24 constexpr size_t MAX_N_INPUT_MONITORS { MAX_N_INPUT_HANDLERS }; 25 constexpr size_t MAX_N_INPUT_INTERCEPTORS { MAX_N_INPUT_HANDLERS }; 26 constexpr int32_t MIN_HANDLER_ID { 1 }; 27 constexpr int32_t INVALID_HANDLER_ID { -1 }; 28 } 29 30 enum InputHandlerType : int32_t { 31 NONE, 32 INTERCEPTOR, 33 MONITOR, 34 }; 35 IsValidHandlerType(InputHandlerType handlerType)36inline bool IsValidHandlerType(InputHandlerType handlerType) 37 { 38 return ((handlerType == InputHandlerType::INTERCEPTOR) || 39 (handlerType == InputHandlerType::MONITOR)); 40 } 41 IsValidHandlerId(int32_t handlerId)42inline bool IsValidHandlerId(int32_t handlerId) 43 { 44 return ((handlerId >= MIN_HANDLER_ID) && (handlerId < std::numeric_limits<int32_t>::max())); 45 } 46 } // namespace MMI 47 } // namespace OHOS 48 #endif // INPUT_HANDLER_TYPE_H