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1 // Copyright (c) 2012 The Chromium 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 | |
5 #include "chrome/browser/ui/views/ash/volume_controller_chromeos.h" | |
6 | |
7 #include "chrome/browser/browser_process.h" | |
8 #include "chrome/browser/chromeos/audio/audio_handler.h" | |
9 #include "chrome/browser/extensions/system/system_api.h" | |
10 #include "content/public/browser/user_metrics.h" | |
11 | |
12 namespace { | |
13 | |
14 // Percent by which the volume should be changed when a volume key is pressed. | |
15 const double kStepPercentage = 4.0; | |
16 | |
17 } // namespace | |
18 | |
19 bool VolumeController::HandleVolumeMute(const ui::Accelerator& accelerator) { | |
20 if (accelerator.key_code() == ui::VKEY_F8) | |
21 content::RecordAction(content::UserMetricsAction("Accel_VolumeMute_F8")); | |
22 | |
23 chromeos::AudioHandler* audio_handler = chromeos::AudioHandler::GetInstance(); | |
24 | |
25 // Always muting (and not toggling) as per final decision on | |
26 // http://crosbug.com/3751 | |
27 audio_handler->SetMuted(true); | |
28 | |
29 extensions::DispatchVolumeChangedEvent(audio_handler->GetVolumePercent(), | |
30 audio_handler->IsMuted()); | |
31 return true; | |
32 } | |
33 | |
34 bool VolumeController::HandleVolumeDown(const ui::Accelerator& accelerator) { | |
35 if (accelerator.key_code() == ui::VKEY_F9) | |
36 content::RecordAction(content::UserMetricsAction("Accel_VolumeDown_F9")); | |
37 | |
38 chromeos::AudioHandler* audio_handler = chromeos::AudioHandler::GetInstance(); | |
39 if (audio_handler->IsMuted()) | |
40 audio_handler->SetVolumePercent(0.0); | |
41 else | |
42 audio_handler->AdjustVolumeByPercent(-kStepPercentage); | |
43 | |
44 extensions::DispatchVolumeChangedEvent(audio_handler->GetVolumePercent(), | |
45 audio_handler->IsMuted()); | |
46 return true; | |
47 } | |
48 | |
49 bool VolumeController::HandleVolumeUp(const ui::Accelerator& accelerator) { | |
50 if (accelerator.key_code() == ui::VKEY_F10) | |
51 content::RecordAction(content::UserMetricsAction("Accel_VolumeUp_F10")); | |
52 | |
53 chromeos::AudioHandler* audio_handler = chromeos::AudioHandler::GetInstance(); | |
54 if (audio_handler->IsMuted()) { | |
55 audio_handler->SetMuted(false); | |
56 // If volume percent is still 0.0 after reset the mute status, it means that | |
57 // the mute status was done by VolumeDown, so we need to increase | |
58 // the volume as usual. | |
59 if (audio_handler->GetVolumePercent() == 0.0) | |
60 audio_handler->AdjustVolumeByPercent(kStepPercentage); | |
61 } else { | |
62 audio_handler->AdjustVolumeByPercent(kStepPercentage); | |
63 } | |
64 | |
65 extensions::DispatchVolumeChangedEvent(audio_handler->GetVolumePercent(), | |
66 audio_handler->IsMuted()); | |
67 return true; | |
68 } | |
69 | |
70 void VolumeController::SetVolumePercent(double percent) { | |
71 chromeos::AudioHandler* audio_handler = chromeos::AudioHandler::GetInstance(); | |
72 audio_handler->SetVolumePercent(percent); | |
73 extensions::DispatchVolumeChangedEvent(audio_handler->GetVolumePercent(), | |
74 audio_handler->IsMuted()); | |
75 } | |
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