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 INPUT_SCREEN_CAPTURE_AGENT_H
17 #define INPUT_SCREEN_CAPTURE_AGENT_H
18 
19 #include <dlfcn.h>
20 #include <mutex>
21 
22 #include "singleton.h"
23 #include "util.h"
24 
25 namespace OHOS {
26 namespace MMI {
27 
28 struct ScreenCaptureHandle {
29     void *handle;
30     int32_t (*isWorking)();
31     void (*registerListener)(ScreenCaptureCallback);
32 
ScreenCaptureHandleOHOS::MMI::ScreenCaptureHandle33     ScreenCaptureHandle(): handle(nullptr), isWorking(nullptr), registerListener(nullptr) {}
34 
FreeOHOS::MMI::ScreenCaptureHandle35     void Free()
36     {
37         if (handle != nullptr) {
38             dlclose(handle);
39             handle = nullptr;
40         }
41         isWorking = nullptr;
42         registerListener = nullptr;
43     }
44 };
45 
46 class InputScreenCaptureAgent : public Singleton<InputScreenCaptureAgent> {
47 public:
48     ~InputScreenCaptureAgent() override;
49     int32_t IsScreenCaptureWorking();
50     void RegisterListener(ScreenCaptureCallback callback);
51 
52 private:
53     int32_t LoadLibrary();
54     ScreenCaptureHandle handle_;
55     std::mutex agentMutex_;
56 };
57 }
58 }
59 
60 #endif