| Garfield Tan | e84e6f9 | 2019-08-29 17:28:41 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (C) 2019 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 _UI_INPUT_INPUTDISPATCHER_INJECTIONSTATE_H |
| 18 | #define _UI_INPUT_INPUTDISPATCHER_INJECTIONSTATE_H |
| 19 | |
| 20 | #include "InputDispatcherInterface.h" |
| 21 | |
| 22 | #include <stdint.h> |
| 23 | |
| 24 | namespace android::inputdispatcher { |
| 25 | |
| 26 | /* |
| 27 | * Constants used to determine the input event injection synchronization mode. |
| 28 | */ |
| 29 | enum { |
| 30 | /* Injection is asynchronous and is assumed always to be successful. */ |
| 31 | INPUT_EVENT_INJECTION_SYNC_NONE = 0, |
| 32 | |
| 33 | /* Waits for previous events to be dispatched so that the input dispatcher can determine |
| 34 | * whether input event injection willbe permitted based on the current input focus. |
| 35 | * Does not wait for the input event to finish processing. */ |
| 36 | INPUT_EVENT_INJECTION_SYNC_WAIT_FOR_RESULT = 1, |
| 37 | |
| 38 | /* Waits for the input event to be completely processed. */ |
| 39 | INPUT_EVENT_INJECTION_SYNC_WAIT_FOR_FINISHED = 2, |
| 40 | }; |
| 41 | |
| 42 | struct InjectionState { |
| 43 | mutable int32_t refCount; |
| 44 | |
| 45 | int32_t injectorPid; |
| 46 | int32_t injectorUid; |
| 47 | int32_t injectionResult; // initially INPUT_EVENT_INJECTION_PENDING |
| 48 | bool injectionIsAsync; // set to true if injection is not waiting for the result |
| 49 | int32_t pendingForegroundDispatches; // the number of foreground dispatches in progress |
| 50 | |
| 51 | InjectionState(int32_t injectorPid, int32_t injectorUid); |
| 52 | void release(); |
| 53 | |
| 54 | private: |
| 55 | ~InjectionState(); |
| 56 | }; |
| 57 | |
| 58 | } // namespace android::inputdispatcher |
| 59 | |
| 60 | #endif // _UI_INPUT_INPUTDISPATCHER_INJECTIONSTATE_H |