src/modules/tizen/Power/Battery.cpp

   1 /*
   2  * Copyright (c) 2011 Samsung Electronics Co., Ltd All Rights Reserved
   3  *
   4  *    Licensed under the Apache License, Version 2.0 (the "License");
   5  *    you may not use this file except in compliance with the License.
   6  *    You may obtain a copy of the License at
   7  *
   8  *        http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  *    Unless required by applicable law or agreed to in writing, software
  11  *    distributed under the License is distributed on an "AS IS" BASIS,
  12  *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  *    See the License for the specific language governing permissions and
  14  *    limitations under the License.
  15  */
  16 #include <vconf.h>
  17 #include <Commons/Exception.h>
  18 #include <Power/EventCharging.h>
  19 #include <Power/EventRemaining.h>
  20 #include "Battery.h"
  21
  22 namespace WrtDeviceApis {
  23 namespace Power {
  24
  25 Battery::Battery(std::size_t index) :
  26     m_index(index),
  27     m_onChargingKey(VCONFKEY_SYSMAN_BATTERY_CHARGE_NOW),
  28     m_onRemainingKey(VCONFKEY_SYSMAN_BATTERY_LEVEL),
  29     m_onLowKey(VCONFKEY_TELEPHONY_LOW_BATTERY)
  30 {
  31 }
  32
  33 Battery::~Battery()
  34 {
  35 }
  36
  37 bool Battery::isCharging() const
  38 {
  39     Try {
  40         return m_onChargingKey.getBool();
  41     }
  42     Catch(Commons::ConversionException) {
  43         ReThrowMsg(Commons::PlatformException,
  44                    "Could not discover battery state.");
  45     }
  46 }
  47
  48 unsigned int Battery::getRemaining() const
  49 {
  50     Try {
  51         int level = m_onRemainingKey.getInt();
  52         double ratio =
  53             (level / static_cast<double>(VCONFKEY_SYSMAN_BAT_LEVEL_MAX));
  54         return static_cast<unsigned int>(ratio * 100);
  55     }
  56     Catch(Commons::ConversionException) {
  57         ReThrowMsg(Commons::PlatformException,
  58                    "Could not discover battery level.");
  59     }
  60 }
  61
  62 void Battery::addOnCharging(const Power::Api::EventChargingEmitterPtr& emitter)
  63 {
  64     DPL::Mutex::ScopedLock lock(&m_onChargingMtx);
  65     ChargingEventEmitters::iterator it = m_onCharging.find(emitter->getId());
  66     if (it == m_onCharging.end()) {
  67         if (m_onCharging.size() == 0) {
  68             if (!m_onChargingKey.attachCallback(Battery::onCharging, this)) {
  69                 ThrowMsg(Commons::PlatformException,
  70                          "Could not set platform listener.");
  71             }
  72         }
  73         m_onCharging.insert(ChargingEventEmitters::value_type(emitter->getId(),
  74                                                               emitter));
  75     }
  76 }
  77
  78 void Battery::removeOnCharging(Power::Api::EventChargingEmitter::IdType id)
  79 {
  80     DPL::Mutex::ScopedLock lock(&m_onChargingMtx);
  81     ChargingEventEmitters::iterator it = m_onCharging.find(id);
  82     if (it != m_onCharging.end()) {
  83         m_onCharging.erase(it);
  84         if (m_onCharging.size() == 0) {
  85             m_onChargingKey.detachCallback();
  86         }
  87     }
  88 }
  89
  90 void Battery::addOnRemaining(
  91         const Api::EventRemainingEmitterPtr& emitter)
  92 {
  93     DPL::Mutex::ScopedLock lock(&m_onRemainingMtx);
  94     RemainingEventEmitters::iterator it = m_onRemaining.find(emitter->getId());
  95     if (it == m_onRemaining.end()) {
  96         if (m_onRemaining.size() == 0) {
  97             if (!m_onRemainingKey.attachCallback(Battery::onRemaining, this)) {
  98                 ThrowMsg(Commons::PlatformException,
  99                          "Could not set platform listener.");
 100             }
 101         }
 102         m_onRemaining.insert(RemainingEventEmitters::value_type(emitter->getId(),
 103                                                                 emitter));
 104     }
 105 }
 106
 107 void Battery::removeOnRemaining(Api::EventRemainingEmitter::IdType id)
 108 {
 109     DPL::Mutex::ScopedLock lock(&m_onRemainingMtx);
 110     RemainingEventEmitters::iterator it = m_onRemaining.find(id);
 111     if (it != m_onRemaining.end()) {
 112         m_onRemaining.erase(it);
 113         if (m_onRemaining.size() == 0) {
 114             m_onRemainingKey.detachCallback();
 115         }
 116     }
 117 }
 118
 119 void Battery::addOnLow(const Api::EventLowEmitterPtr& emitter)
 120 {
 121     DPL::Mutex::ScopedLock lock(&m_onLowMtx);
 122     LowEventEmitters::iterator it = m_onLow.find(emitter->getId());
 123     if (it == m_onLow.end()) {
 124         if (m_onLow.size() == 0) {
 125             if (!m_onLowKey.attachCallback(Battery::onLow, this)) {
 126                 ThrowMsg(Commons::PlatformException,
 127                          "Could not set platform listener.");
 128             }
 129         }
 130         m_onLow.insert(LowEventEmitters::value_type(emitter->getId(), emitter));
 131     }
 132 }
 133
 134 void Battery::removeOnLow(Api::EventLowEmitter::IdType id)
 135 {
 136     DPL::Mutex::ScopedLock lock(&m_onLowMtx);
 137     LowEventEmitters::iterator it = m_onLow.find(id);
 138     if (it != m_onLow.end()) {
 139         m_onLow.erase(it);
 140         if (m_onLow.size() == 0) {
 141             m_onLowKey.detachCallback();
 142         }
 143     }
 144 }
 145
 146 void Battery::onCharging(const VConf::Node* /* node */,
 147         void* data)
 148 {
 149     Battery* this_ = static_cast<Battery*>(data);
 150     if (this_) {
 151         Api::EventChargingPtr event(new Api::EventCharging());
 152
 153         DPL::Mutex::ScopedLock lock(&this_->m_onChargingMtx);
 154         ChargingEventEmitters::iterator it = this_->m_onCharging.begin();
 155         for (; it != this_->m_onCharging.end(); ++it) {
 156             if (!!it->second) {
 157                 it->second->emit(event);
 158             }
 159         }
 160     }
 161 }
 162
 163 void Battery::onRemaining(const VConf::Node* /* node */,
 164         void* data)
 165 {
 166     Battery* this_ = static_cast<Battery*>(data);
 167     if (this_) {
 168         Api::EventRemainingPtr event(new Api::EventRemaining());
 169         Try {
 170             event->setResult(this_->getRemaining());
 171         }
 172         Catch(Commons::PlatformException) {
 173             event->setExceptionCode(Commons::ExceptionCodes::PlatformException);
 174         }
 175
 176         DPL::Mutex::ScopedLock lock(&this_->m_onRemainingMtx);
 177         RemainingEventEmitters::iterator it = this_->m_onRemaining.begin();
 178         for (; it != this_->m_onRemaining.end(); ++it) {
 179             if (!!it->second) {
 180                 it->second->emit(event);
 181             }
 182         }
 183     }
 184 }
 185
 186 void Battery::onLow(const VConf::Node* /* node */,
 187         void* data)
 188 {
 189     Battery* this_ = static_cast<Battery*>(data);
 190     if (this_) {
 191         Api::EventLowPtr event(new Api::EventLow());
 192         Try {
 193             event->setResult(this_->getRemaining());
 194         }
 195         Catch(Commons::PlatformException) {
 196             event->setExceptionCode(Commons::ExceptionCodes::PlatformException);
 197         }
 198
 199         DPL::Mutex::ScopedLock lock(&this_->m_onLowMtx);
 200         LowEventEmitters::iterator it = this_->m_onLow.begin();
 201         for (; it != this_->m_onLow.end(); ++it) {
 202             if (!!it->second) {
 203                 it->second->emit(event);
 204             }
 205         }
 206     }
 207 }
 208 } // Power
 209 } // WrtDeviceApis