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 
16 #ifndef INPUTMETHOD_IMF_FREEZE_MANAGER_H
17 #define INPUTMETHOD_IMF_FREEZE_MANAGER_H
18 
19 #include <mutex>
20 
21 #include "event_handler.h"
22 
23 namespace OHOS {
24 namespace MiscServices {
25 enum class RequestType : int32_t { NORMAL = 0, START_INPUT, STOP_INPUT, REQUEST_SHOW, REQUEST_HIDE };
26 class FreezeManager {
27 public:
FreezeManager(pid_t pid)28     explicit FreezeManager(pid_t pid) : pid_(pid)
29     {
30     }
31     static void SetEventHandler(const std::shared_ptr<AppExecFwk::EventHandler> &eventHandler);
32     bool IsIpcNeeded(RequestType type);
33     void BeforeIpc(RequestType type);
34     void AfterIpc(RequestType type, bool isSuccess);
35 
36 private:
37     static std::shared_ptr<AppExecFwk::EventHandler> eventHandler_;
38     void ControlIme(bool shouldFreeze);
39     static void ReportRss(bool shouldFreeze, pid_t pid);
40     std::mutex mutex_;
41     bool isImeInUse_{ false };
42     bool isFrozen_{ true };
43     pid_t pid_;
44 };
45 } // namespace MiscServices
46 } // namespace OHOS
47 #endif //INPUTMETHOD_IMF_FREEZE_MANAGER_H
48