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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "device/battery/battery_monitor_impl.h" | 5 #include "services/device/battery/battery_monitor_impl.h" |
| 6 | 6 |
| 7 #include <utility> | 7 #include <utility> |
| 8 | 8 |
| 9 #include "base/bind.h" | 9 #include "base/bind.h" |
| 10 #include "base/logging.h" | 10 #include "base/logging.h" |
| 11 #include "base/memory/ptr_util.h" | 11 #include "base/memory/ptr_util.h" |
| 12 #include "mojo/public/cpp/bindings/strong_binding.h" | 12 #include "mojo/public/cpp/bindings/strong_binding.h" |
| 13 | 13 |
| 14 namespace device { | 14 namespace device { |
| 15 | 15 |
| 16 // static | 16 // static |
| 17 void BatteryMonitorImpl::Create(mojom::BatteryMonitorRequest request) { | 17 void BatteryMonitorImpl::Create(mojom::BatteryMonitorRequest request) { |
| 18 auto* impl = new BatteryMonitorImpl; | 18 auto* impl = new BatteryMonitorImpl; |
| 19 auto binding = | 19 auto binding = |
| 20 mojo::MakeStrongBinding(base::WrapUnique(impl), std::move(request)); | 20 mojo::MakeStrongBinding(base::WrapUnique(impl), std::move(request)); |
| 21 impl->binding_ = binding; | 21 impl->binding_ = binding; |
| 22 } | 22 } |
| 23 | 23 |
| 24 BatteryMonitorImpl::BatteryMonitorImpl() : status_to_report_(false) { | 24 BatteryMonitorImpl::BatteryMonitorImpl() : status_to_report_(false) { |
| 25 // NOTE: DidChange may be called before AddCallback returns. This is done to | 25 // NOTE: DidChange may be called before AddCallback returns. This is done to |
| 26 // report current status. | 26 // report current status. |
| 27 subscription_ = BatteryStatusService::GetInstance()->AddCallback( | 27 subscription_ = BatteryStatusService::GetInstance()->AddCallback( |
| 28 base::Bind(&BatteryMonitorImpl::DidChange, base::Unretained(this))); | 28 base::Bind(&BatteryMonitorImpl::DidChange, base::Unretained(this))); |
| 29 } | 29 } |
| 30 | 30 |
| 31 BatteryMonitorImpl::~BatteryMonitorImpl() { | 31 BatteryMonitorImpl::~BatteryMonitorImpl() {} |
| 32 } | |
| 33 | 32 |
| 34 void BatteryMonitorImpl::QueryNextStatus( | 33 void BatteryMonitorImpl::QueryNextStatus( |
| 35 const QueryNextStatusCallback& callback) { | 34 const QueryNextStatusCallback& callback) { |
| 36 if (!callback_.is_null()) { | 35 if (!callback_.is_null()) { |
| 37 DVLOG(1) << "Overlapped call to QueryNextStatus!"; | 36 DVLOG(1) << "Overlapped call to QueryNextStatus!"; |
| 38 binding_->Close(); | 37 binding_->Close(); |
| 39 return; | 38 return; |
| 40 } | 39 } |
| 41 callback_ = callback; | 40 callback_ = callback; |
| 42 | 41 |
| 43 if (status_to_report_) | 42 if (status_to_report_) |
| 44 ReportStatus(); | 43 ReportStatus(); |
| 45 } | 44 } |
| 46 | 45 |
| 47 void BatteryMonitorImpl::RegisterSubscription() { | 46 void BatteryMonitorImpl::RegisterSubscription() {} |
| 48 } | |
| 49 | 47 |
| 50 void BatteryMonitorImpl::DidChange(const mojom::BatteryStatus& battery_status) { | 48 void BatteryMonitorImpl::DidChange(const mojom::BatteryStatus& battery_status) { |
| 51 status_ = battery_status; | 49 status_ = battery_status; |
| 52 status_to_report_ = true; | 50 status_to_report_ = true; |
| 53 | 51 |
| 54 if (!callback_.is_null()) | 52 if (!callback_.is_null()) |
| 55 ReportStatus(); | 53 ReportStatus(); |
| 56 } | 54 } |
| 57 | 55 |
| 58 void BatteryMonitorImpl::ReportStatus() { | 56 void BatteryMonitorImpl::ReportStatus() { |
| 59 callback_.Run(status_.Clone()); | 57 callback_.Run(status_.Clone()); |
| 60 callback_.Reset(); | 58 callback_.Reset(); |
| 61 | 59 |
| 62 status_to_report_ = false; | 60 status_to_report_ = false; |
| 63 } | 61 } |
| 64 | 62 |
| 65 } // namespace device | 63 } // namespace device |
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