settings/
audio.rs

1// Copyright 2019 The Fuchsia Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5pub use self::audio_controller::Request;
6pub use self::audio_default_settings::build_audio_default_settings;
7#[cfg(test)]
8pub(crate) use self::audio_default_settings::create_default_audio_stream;
9pub(crate) use self::audio_default_settings::{
10    AudioInfoLoader, ModifiedCounters, create_default_modified_counters,
11};
12pub use self::stream_volume_control::StreamVolumeControl;
13pub mod audio_controller;
14pub mod types;
15
16mod audio_default_settings;
17mod audio_fidl_handler;
18mod stream_volume_control;
19
20/// Mod containing utility functions for audio-related functionality.
21pub(crate) mod utils;
22
23use self::audio_controller::AudioController;
24use self::audio_fidl_handler::AudioFidlHandler;
25use futures::channel::mpsc::{self, UnboundedSender};
26use settings_common::inspect::event::{
27    ExternalEventPublisher, SettingValuePublisher, UsagePublisher,
28};
29use settings_common::service_context::ServiceContext;
30use settings_storage::device_storage::DeviceStorage;
31use settings_storage::storage_factory::StorageFactory;
32use std::rc::Rc;
33use types::AudioInfo;
34
35pub struct SetupResult {
36    pub audio_fidl_handler: AudioFidlHandler,
37    pub request_tx: UnboundedSender<Request>,
38    pub task: fuchsia_async::Task<()>,
39}
40
41pub async fn setup_audio_api<F>(
42    service_context: Rc<ServiceContext>,
43    audio_info_loader: AudioInfoLoader,
44    storage_factory: Rc<F>,
45    setting_value_publisher: SettingValuePublisher<AudioInfo>,
46    usage_publisher: UsagePublisher<AudioInfo>,
47    external_publisher: ExternalEventPublisher,
48) -> SetupResult
49where
50    F: StorageFactory<Storage = DeviceStorage>,
51{
52    let (request_tx, request_rx) = mpsc::unbounded();
53    let mut audio_controller = AudioController::new(
54        service_context,
55        audio_info_loader,
56        storage_factory,
57        setting_value_publisher.clone(),
58        external_publisher,
59    )
60    .await;
61    let initial_value = audio_controller.restore().await;
62    let _ = setting_value_publisher.publish(&initial_value);
63
64    let audio_fidl_handler = AudioFidlHandler::new(
65        &mut audio_controller,
66        usage_publisher,
67        request_tx.clone(),
68        initial_value,
69    );
70    let task = audio_controller.handle(request_rx).await;
71    SetupResult { audio_fidl_handler, request_tx, task }
72}
settings/audio.rs

settings/
audio.rs
