1 /*
2 * Copyright (c) 2022-2023 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
16 #include "accessibility_config_listener.h"
17
18 #include "audio_log.h"
19
20 using namespace OHOS::AccessibilityConfig;
21
22 namespace OHOS {
23 namespace AudioStandard {
AccessibilityConfigListener(IAudioAccessibilityConfigObserver & observer)24 AccessibilityConfigListener::AccessibilityConfigListener(IAudioAccessibilityConfigObserver &observer)
25 : audioAccessibilityConfigObserver_(observer) {}
26
~AccessibilityConfigListener()27 AccessibilityConfigListener::~AccessibilityConfigListener() {}
28
OnConfigChanged(const CONFIG_ID configId,const ConfigValue & value)29 void AccessibilityConfigListener::OnConfigChanged(const CONFIG_ID configId, const ConfigValue &value)
30 {
31 AUDIO_INFO_LOG("OnConfigChanged: configId %{public}d", configId);
32 if (configId == CONFIG_AUDIO_MONO) {
33 audioAccessibilityConfigObserver_.OnMonoAudioConfigChanged(value.audioMono);
34 } else if (configId == CONFIG_AUDIO_BALANCE) {
35 // value.audioBalance should be in the range [-1.0, 1.0]
36 float balance = value.audioBalance;
37 if (balance < -1.0f || balance > 1.0f) {
38 AUDIO_ERR_LOG("AccessibilityConfigListener: audioBalance value is out of range [-1.0, 1.0]");
39 } else {
40 audioAccessibilityConfigObserver_.OnAudioBalanceChanged(balance);
41 }
42 }
43 }
44
SubscribeObserver()45 void AccessibilityConfigListener::SubscribeObserver()
46 {
47 auto &accessibilityConfig = OHOS::AccessibilityConfig::AccessibilityConfig::GetInstance();
48 (void)accessibilityConfig.InitializeContext();
49 accessibilityConfig.SubscribeConfigObserver(CONFIG_AUDIO_MONO, shared_from_this());
50 accessibilityConfig.SubscribeConfigObserver(CONFIG_AUDIO_BALANCE, shared_from_this());
51 }
52
UnsubscribeObserver()53 void AccessibilityConfigListener::UnsubscribeObserver()
54 {
55 auto &accessibilityConfig = OHOS::AccessibilityConfig::AccessibilityConfig::GetInstance();
56 (void)accessibilityConfig.InitializeContext();
57 accessibilityConfig.UnsubscribeConfigObserver(CONFIG_AUDIO_MONO, shared_from_this());
58 accessibilityConfig.UnsubscribeConfigObserver(CONFIG_AUDIO_BALANCE, shared_from_this());
59 }
60 } // namespace AudioStandard
61 } // namespace OHOS