1 /*
2 * Copyright (c) 2023 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 LOG_TAG
16 #define LOG_TAG "CallbackHandlerInner"
17 #endif
18
19 #include "callback_handler.h"
20 #include "event_handler.h"
21 #include "event_runner.h"
22 #include "audio_service_log.h"
23
24 namespace OHOS {
25 namespace AudioStandard {
26 using namespace std;
27 class CallbackHandlerInner : public CallbackHandler, public AppExecFwk::EventHandler {
28 public:
29 explicit CallbackHandlerInner(std::shared_ptr<IHandler> iHandler);
30 ~CallbackHandlerInner();
31
32 void SendCallbackEvent(uint32_t eventCode, int64_t data) override;
33
34 void ReleaseEventRunner() override;
35
36 protected:
37 void ProcessEvent(const AppExecFwk::InnerEvent::Pointer &event) override;
38
39 private:
40 std::weak_ptr<IHandler> iHandler_;
41 };
42
GetInstance(std::shared_ptr<IHandler> iHandler)43 std::shared_ptr<CallbackHandler> CallbackHandler::GetInstance(std::shared_ptr<IHandler> iHandler)
44 {
45 return std::make_shared<CallbackHandlerInner>(iHandler);
46 }
47
CallbackHandlerInner(std::shared_ptr<IHandler> iHandler)48 CallbackHandlerInner::CallbackHandlerInner(std::shared_ptr<IHandler> iHandler)
49 : AppExecFwk::EventHandler(AppExecFwk::EventRunner::Create("OS_AudioStateCB"))
50 {
51 iHandler_ = iHandler;
52 }
53
~CallbackHandlerInner()54 CallbackHandlerInner::~CallbackHandlerInner()
55 {
56 AUDIO_WARNING_LOG("Destructor callback handler inner");
57 }
58
SendCallbackEvent(uint32_t eventCode, int64_t data)59 void CallbackHandlerInner::SendCallbackEvent(uint32_t eventCode, int64_t data)
60 {
61 SendEvent(AppExecFwk::InnerEvent::Get(eventCode, data));
62 }
63
ProcessEvent(const AppExecFwk::InnerEvent::Pointer &event)64 void CallbackHandlerInner::ProcessEvent(const AppExecFwk::InnerEvent::Pointer &event)
65 {
66 uint32_t eventCode = event->GetInnerEventId();
67 int64_t data = event->GetParam();
68 std::shared_ptr<IHandler> handler = iHandler_.lock();
69 if (handler == nullptr) {
70 AUDIO_ERR_LOG("iHandler is nullptr");
71 return;
72 }
73 handler->OnHandle(eventCode, data);
74 }
75
ReleaseEventRunner()76 void CallbackHandlerInner::ReleaseEventRunner()
77 {
78 SetEventRunner(nullptr);
79 }
80 } // namespace AudioStandard
81 } // namespace OHOS
82