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 #ifndef LOG_TAG
16 #define LOG_TAG "AccessibilityConfigListener"
17 #endif
18
19 #include "accessibility_config_listener.h"
20
21 #include "audio_policy_log.h"
22
23 using namespace OHOS::AccessibilityConfig;
24
25 namespace OHOS {
26 namespace AudioStandard {
AccessibilityConfigListener(IAudioAccessibilityConfigObserver & observer)27 AccessibilityConfigListener::AccessibilityConfigListener(IAudioAccessibilityConfigObserver &observer)
28 : audioAccessibilityConfigObserver_(observer) {}
29
~AccessibilityConfigListener()30 AccessibilityConfigListener::~AccessibilityConfigListener() {}
31
OnConfigChanged(const CONFIG_ID configId,const ConfigValue & value)32 void AccessibilityConfigListener::OnConfigChanged(const CONFIG_ID configId, const ConfigValue &value)
33 {
34 AUDIO_DEBUG_LOG("OnConfigChanged: configId %{public}d", configId);
35 if (configId == CONFIG_AUDIO_MONO) {
36 audioAccessibilityConfigObserver_.OnMonoAudioConfigChanged(value.audioMono);
37 } else if (configId == CONFIG_AUDIO_BALANCE) {
38 // value.audioBalance should be in the range [-1.0, 1.0]
39 float balance = value.audioBalance;
40 if (balance < -1.0f || balance > 1.0f) {
41 AUDIO_WARNING_LOG("AccessibilityConfigListener: audioBalance value is out of range [-1.0, 1.0]");
42 } else {
43 audioAccessibilityConfigObserver_.OnAudioBalanceChanged(balance);
44 }
45 }
46 }
47
SubscribeObserver()48 void AccessibilityConfigListener::SubscribeObserver()
49 {
50 auto &accessibilityConfig = OHOS::AccessibilityConfig::AccessibilityConfig::GetInstance();
51 (void)accessibilityConfig.InitializeContext();
52 accessibilityConfig.SubscribeConfigObserver(CONFIG_AUDIO_MONO, shared_from_this());
53 accessibilityConfig.SubscribeConfigObserver(CONFIG_AUDIO_BALANCE, shared_from_this());
54 }
55
UnsubscribeObserver()56 void AccessibilityConfigListener::UnsubscribeObserver()
57 {
58 auto &accessibilityConfig = OHOS::AccessibilityConfig::AccessibilityConfig::GetInstance();
59 (void)accessibilityConfig.InitializeContext();
60 accessibilityConfig.UnsubscribeConfigObserver(CONFIG_AUDIO_MONO, shared_from_this());
61 accessibilityConfig.UnsubscribeConfigObserver(CONFIG_AUDIO_BALANCE, shared_from_this());
62 }
63 } // namespace AudioStandard
64 } // namespace OHOS