1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
|
// Copyright (c) 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "extensions/browser/api/audio/audio_api.h"
#include "base/lazy_instance.h"
#include "base/values.h"
#include "extensions/browser/event_router.h"
#include "extensions/common/api/audio.h"
namespace extensions {
namespace audio = core_api::audio;
static base::LazyInstance<BrowserContextKeyedAPIFactory<AudioAPI> > g_factory =
LAZY_INSTANCE_INITIALIZER;
// static
BrowserContextKeyedAPIFactory<AudioAPI>* AudioAPI::GetFactoryInstance() {
return g_factory.Pointer();
}
AudioAPI::AudioAPI(content::BrowserContext* context)
: browser_context_(context), service_(AudioService::CreateInstance()) {
service_->AddObserver(this);
}
AudioAPI::~AudioAPI() {
service_->RemoveObserver(this);
delete service_;
service_ = NULL;
}
AudioService* AudioAPI::GetService() const {
return service_;
}
void AudioAPI::OnDeviceChanged() {
if (browser_context_ && EventRouter::Get(browser_context_)) {
scoped_ptr<Event> event(new Event(
audio::OnDeviceChanged::kEventName,
scoped_ptr<base::ListValue>(new base::ListValue())));
EventRouter::Get(browser_context_)->BroadcastEvent(event.Pass());
}
}
void AudioAPI::OnLevelChanged(const std::string& id, int level) {
if (browser_context_ && EventRouter::Get(browser_context_)) {
scoped_ptr<base::ListValue> args = audio::OnLevelChanged::Create(id, level);
scoped_ptr<Event> event(
new Event(audio::OnLevelChanged::kEventName, args.Pass()));
EventRouter::Get(browser_context_)->BroadcastEvent(event.Pass());
}
}
///////////////////////////////////////////////////////////////////////////////
bool AudioGetInfoFunction::RunAsync() {
AudioService* service =
AudioAPI::GetFactoryInstance()->Get(browser_context())->GetService();
DCHECK(service);
service->StartGetInfo(base::Bind(&AudioGetInfoFunction::OnGetInfoCompleted,
this));
return true;
}
void AudioGetInfoFunction::OnGetInfoCompleted(const OutputInfo& output_info,
const InputInfo& input_info,
bool success) {
if (success)
results_ = audio::GetInfo::Results::Create(output_info, input_info);
else
SetError("Error occurred when querying audio device information.");
SendResponse(success);
}
///////////////////////////////////////////////////////////////////////////////
bool AudioSetActiveDevicesFunction::RunSync() {
scoped_ptr<audio::SetActiveDevices::Params> params(
audio::SetActiveDevices::Params::Create(*args_));
EXTENSION_FUNCTION_VALIDATE(params.get());
AudioService* service =
AudioAPI::GetFactoryInstance()->Get(browser_context())->GetService();
DCHECK(service);
service->SetActiveDevices(params->ids);
return true;
}
///////////////////////////////////////////////////////////////////////////////
bool AudioSetPropertiesFunction::RunSync() {
scoped_ptr<audio::SetProperties::Params> params(
audio::SetProperties::Params::Create(*args_));
EXTENSION_FUNCTION_VALIDATE(params.get());
AudioService* service =
AudioAPI::GetFactoryInstance()->Get(browser_context())->GetService();
DCHECK(service);
int volume_value = params->properties.volume.get() ?
*params->properties.volume : -1;
int gain_value = params->properties.gain.get() ?
*params->properties.gain : -1;
if (!service->SetDeviceProperties(params->id,
params->properties.is_muted,
volume_value,
gain_value))
return false;
else
return true;
}
///////////////////////////////////////////////////////////////////////////////
} // namespace extensions
|
