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Diffstat (limited to 'dom/battery/BatteryManager.cpp')
| -rw-r--r-- | dom/battery/BatteryManager.cpp | 212 |
1 files changed, 0 insertions, 212 deletions
diff --git a/dom/battery/BatteryManager.cpp b/dom/battery/BatteryManager.cpp deleted file mode 100644 index 271fa373d..000000000 --- a/dom/battery/BatteryManager.cpp +++ /dev/null @@ -1,212 +0,0 @@ -/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ -/* vim: set ts=8 sts=2 et sw=2 tw=80: */ -/* This Source Code Form is subject to the terms of the Mozilla Public - * License, v. 2.0. If a copy of the MPL was not distributed with this - * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ - -#include <cmath> -#include <limits> -#include "BatteryManager.h" -#include "Constants.h" -#include "mozilla/DOMEventTargetHelper.h" -#include "mozilla/Hal.h" -#include "mozilla/dom/BatteryManagerBinding.h" -#include "mozilla/Preferences.h" -#include "nsContentUtils.h" -#include "nsIDOMClassInfo.h" -#include "nsIDocument.h" - -/** - * We have to use macros here because our leak analysis tool things we are - * leaking strings when we have |static const nsString|. Sad :( - */ -#define LEVELCHANGE_EVENT_NAME NS_LITERAL_STRING("levelchange") -#define CHARGINGCHANGE_EVENT_NAME NS_LITERAL_STRING("chargingchange") -#define DISCHARGINGTIMECHANGE_EVENT_NAME NS_LITERAL_STRING("dischargingtimechange") -#define CHARGINGTIMECHANGE_EVENT_NAME NS_LITERAL_STRING("chargingtimechange") - -namespace mozilla { -namespace dom { -namespace battery { - -BatteryManager::BatteryManager(nsPIDOMWindowInner* aWindow) - : DOMEventTargetHelper(aWindow) - , mLevel(kDefaultLevel) - , mCharging(kDefaultCharging) - , mRemainingTime(kDefaultRemainingTime) -{ -} - -void -BatteryManager::Init() -{ - hal::RegisterBatteryObserver(this); - - hal::BatteryInformation batteryInfo; - hal::GetCurrentBatteryInformation(&batteryInfo); - - UpdateFromBatteryInfo(batteryInfo); -} - -void -BatteryManager::Shutdown() -{ - hal::UnregisterBatteryObserver(this); -} - -JSObject* -BatteryManager::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) -{ - return BatteryManagerBinding::Wrap(aCx, this, aGivenProto); -} - -bool -BatteryManager::Charging() const -{ - MOZ_ASSERT(NS_IsMainThread()); - // For testing, unable to report the battery status information - if (Preferences::GetBool("dom.battery.test.default", false)) { - return true; - } - if (Preferences::GetBool("dom.battery.test.charging", false)) { - return true; - } - if (Preferences::GetBool("dom.battery.test.discharging", false)) { - return false; - } - - return mCharging; -} - -double -BatteryManager::DischargingTime() const -{ - MOZ_ASSERT(NS_IsMainThread()); - // For testing, unable to report the battery status information - if (Preferences::GetBool("dom.battery.test.default", false)) { - return std::numeric_limits<double>::infinity(); - } - if (Preferences::GetBool("dom.battery.test.discharging", false)) { - return 42.0; - } - - if (Charging() || mRemainingTime == kUnknownRemainingTime) { - return std::numeric_limits<double>::infinity(); - } - - return mRemainingTime; -} - -double -BatteryManager::ChargingTime() const -{ - MOZ_ASSERT(NS_IsMainThread()); - // For testing, unable to report the battery status information - if (Preferences::GetBool("dom.battery.test.default", false)) { - return 0.0; - } - if (Preferences::GetBool("dom.battery.test.charging", false)) { - return 42.0; - } - - if (!Charging() || mRemainingTime == kUnknownRemainingTime) { - return std::numeric_limits<double>::infinity(); - } - - return mRemainingTime; -} - -double -BatteryManager::Level() const -{ - MOZ_ASSERT(NS_IsMainThread()); - // For testing, unable to report the battery status information - if (Preferences::GetBool("dom.battery.test.default")) { - return 1.0; - } - - return mLevel; -} - -void -BatteryManager::UpdateFromBatteryInfo(const hal::BatteryInformation& aBatteryInfo) -{ - mLevel = aBatteryInfo.level(); - - // Round to the nearest ten percent for non-chrome and non-certified apps - nsIDocument* doc = GetOwner() ? GetOwner()->GetDoc() : nullptr; - uint16_t status = nsIPrincipal::APP_STATUS_NOT_INSTALLED; - if (doc) { - status = doc->NodePrincipal()->GetAppStatus(); - } - - mCharging = aBatteryInfo.charging(); - mRemainingTime = aBatteryInfo.remainingTime(); - - if (!nsContentUtils::IsChromeDoc(doc) && - status != nsIPrincipal::APP_STATUS_CERTIFIED) - { - mLevel = lround(mLevel * 10.0) / 10.0; - if (mLevel == 1.0) { - mRemainingTime = mCharging ? kDefaultRemainingTime : kUnknownRemainingTime; - } else if (mRemainingTime != kUnknownRemainingTime) { - // Round the remaining time to a multiple of 15 minutes and never zero - const double MINUTES_15 = 15.0 * 60.0; - mRemainingTime = fmax(lround(mRemainingTime / MINUTES_15) * MINUTES_15, - MINUTES_15); - } - } - - // Add some guards to make sure the values are coherent. - if (mLevel == 1.0 && mCharging == true && - mRemainingTime != kDefaultRemainingTime) { - mRemainingTime = kDefaultRemainingTime; - NS_ERROR("Battery API: When charging and level at 1.0, remaining time " - "should be 0. Please fix your backend!"); - } -} - -void -BatteryManager::Notify(const hal::BatteryInformation& aBatteryInfo) -{ - double previousLevel = mLevel; - bool previousCharging = mCharging; - double previousRemainingTime = mRemainingTime; - - UpdateFromBatteryInfo(aBatteryInfo); - - if (previousCharging != mCharging) { - DispatchTrustedEvent(CHARGINGCHANGE_EVENT_NAME); - } - - if (previousLevel != mLevel) { - DispatchTrustedEvent(LEVELCHANGE_EVENT_NAME); - } - - /* - * There are a few situations that could happen here: - * 1. Charging state changed: - * a. Previous remaining time wasn't unkwonw, we have to fire an event for - * the change. - * b. New remaining time isn't unkwonw, we have to fire an event for it. - * 2. Charging state didn't change but remainingTime did, we have to fire - * the event that correspond to the current charging state. - */ - if (mCharging != previousCharging) { - if (previousRemainingTime != kUnknownRemainingTime) { - DispatchTrustedEvent(previousCharging ? CHARGINGTIMECHANGE_EVENT_NAME - : DISCHARGINGTIMECHANGE_EVENT_NAME); - } - if (mRemainingTime != kUnknownRemainingTime) { - DispatchTrustedEvent(mCharging ? CHARGINGTIMECHANGE_EVENT_NAME - : DISCHARGINGTIMECHANGE_EVENT_NAME); - } - } else if (previousRemainingTime != mRemainingTime) { - DispatchTrustedEvent(mCharging ? CHARGINGTIMECHANGE_EVENT_NAME - : DISCHARGINGTIMECHANGE_EVENT_NAME); - } -} - -} // namespace battery -} // namespace dom -} // namespace mozilla |