1 /* 2 * Copyright (c) 2024 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 #ifndef OH_WINDOW_EVENT_FILTER_H 16 #define OH_WINDOW_EVENT_FILTER_H 17 18 #include "foundation/multimodalinput/input/interfaces/kits/c/input/oh_input_manager.h" 19 #include "key_event.h" 20 #include "oh_window_comm.h" 21 #include "stdint.h" 22 23 #ifdef __cplusplus 24 extern "C" { 25 #endif 26 /** 27 * @brief the callback funcation type when keyEvent was filter 28 * @param keyEvent multimodal keyEvent 29 * @since 12 30 */ 31 typedef bool (*OH_NativeWindowManager_KeyEventFilter)(Input_KeyEvent* keyEvent); 32 33 /** 34 * @brief Registers a filter callback for the window, the callback is called when the 35 * window is dispatched to the event 36 * 37 * @param windowId windowId when window is created 38 * @param keyEventFilter key event callback ,called when the window is dispatched 39 * to the event 40 * @return Returns the status code of the execution. 41 * @since 12 42 */ 43 WindowManager_ErrorCode OH_NativeWindowManager_RegisterKeyEventFilter(int32_t windowId, 44 OH_NativeWindowManager_KeyEventFilter keyEventFilter); 45 46 /** 47 * @brief clear callback for the window 48 * 49 * @param windowId windowId when window is created 50 * @return Returns the status code of the execution. 51 * @since 12 52 */ 53 WindowManager_ErrorCode OH_NativeWindowManager_UnregisterKeyEventFilter(int32_t windowId); 54 55 #ifdef __cplusplus 56 } 57 #endif 58 #endif // OH_WINDOW_EVENT_FILTER_H 59