Issue #1391 - Remove the DOM battery API

1 files changed, 0 insertions, 325 deletions

diff --git a/hal/cocoa/CocoaBattery.cpp b/hal/cocoa/CocoaBattery.cpp
deleted file mode 100644
index 6f1b7b1dc..000000000
--- a/hal/cocoa/CocoaBattery.cpp
+++ /dev/null
@@ -1,325 +0,0 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim set: sw=2 ts=2 et lcs=trail\:.,tab\:>~ : */
-/* 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/. */
-
-#import <CoreFoundation/CoreFoundation.h>
-#import <IOKit/ps/IOPowerSources.h>
-#import <IOKit/ps/IOPSKeys.h>
-
-#include <mozilla/Hal.h>
-#include <mozilla/dom/battery/Constants.h>
-#include <mozilla/Services.h>
-
-#include <nsIObserverService.h>
-#include <nsIObserver.h>
-
-#include <dlfcn.h>
-
-#define IOKIT_FRAMEWORK_PATH "/System/Library/Frameworks/IOKit.framework/IOKit"
-
-#ifndef kIOPSTimeRemainingUnknown
-  #define kIOPSTimeRemainingUnknown ((CFTimeInterval)-1.0)
-#endif
-#ifndef kIOPSTimeRemainingUnlimited
-  #define kIOPSTimeRemainingUnlimited ((CFTimeInterval)-2.0)
-#endif
-
-using namespace mozilla::dom::battery;
-
-namespace mozilla {
-namespace hal_impl {
-
-typedef CFTimeInterval (*IOPSGetTimeRemainingEstimateFunc)(void);
-
-class MacPowerInformationService
-{
-public:
-  static MacPowerInformationService* GetInstance();
-  static void Shutdown();
-  static bool IsShuttingDown();
-
-  void BeginListening();
-  void StopListening();
-
-  static void HandleChange(void *aContext);
-
-  ~MacPowerInformationService();
-
-private:
-  MacPowerInformationService();
-
-  // The reference to the runloop that is notified of power changes.
-  CFRunLoopSourceRef mRunLoopSource;
-
-  double mLevel;
-  bool mCharging;
-  double mRemainingTime;
-  bool mShouldNotify;
-
-  friend void GetCurrentBatteryInformation(hal::BatteryInformation* aBatteryInfo);
-
-  static MacPowerInformationService* sInstance;
-  static bool sShuttingDown;
-
-  static void* sIOKitFramework;
-  static IOPSGetTimeRemainingEstimateFunc sIOPSGetTimeRemainingEstimate;
-};
-
-void* MacPowerInformationService::sIOKitFramework;
-IOPSGetTimeRemainingEstimateFunc MacPowerInformationService::sIOPSGetTimeRemainingEstimate;
-
-/*
- * Implementation of mozilla::hal_impl::EnableBatteryNotifications,
- *                   mozilla::hal_impl::DisableBatteryNotifications,
- *               and mozilla::hal_impl::GetCurrentBatteryInformation.
- */
-
-void
-EnableBatteryNotifications()
-{
-  if (!MacPowerInformationService::IsShuttingDown()) {
-    MacPowerInformationService::GetInstance()->BeginListening();
-  }
-}
-
-void
-DisableBatteryNotifications()
-{
-  if (!MacPowerInformationService::IsShuttingDown()) {
-    MacPowerInformationService::GetInstance()->StopListening();
-  }
-}
-
-void
-GetCurrentBatteryInformation(hal::BatteryInformation* aBatteryInfo)
-{
-  MacPowerInformationService* powerService = MacPowerInformationService::GetInstance();
-
-  aBatteryInfo->level() = powerService->mLevel;
-  aBatteryInfo->charging() = powerService->mCharging;
-  aBatteryInfo->remainingTime() = powerService->mRemainingTime;
-}
-
-bool MacPowerInformationService::sShuttingDown = false;
-
-/*
- * Following is the implementation of MacPowerInformationService.
- */
-
-MacPowerInformationService* MacPowerInformationService::sInstance = nullptr;
-
-namespace {
-struct SingletonDestroyer final : public nsIObserver
-{
-  NS_DECL_ISUPPORTS
-  NS_DECL_NSIOBSERVER
-
-private:
-  ~SingletonDestroyer() {}
-};
-
-NS_IMPL_ISUPPORTS(SingletonDestroyer, nsIObserver)
-
-NS_IMETHODIMP
-SingletonDestroyer::Observe(nsISupports*, const char* aTopic, const char16_t*)
-{
-  MOZ_ASSERT(!strcmp(aTopic, "xpcom-shutdown"));
-  MacPowerInformationService::Shutdown();
-  return NS_OK;
-}
-} // namespace
-
-/* static */ MacPowerInformationService*
-MacPowerInformationService::GetInstance()
-{
-  if (sInstance) {
-    return sInstance;
-  }
-
-  sInstance = new MacPowerInformationService();
-
-  nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
-  if (obs) {
-    obs->AddObserver(new SingletonDestroyer(), "xpcom-shutdown", false);
-  }
-
-  return sInstance;
-}
-
-bool
-MacPowerInformationService::IsShuttingDown()
-{
-  return sShuttingDown;
-}
-
-void
-MacPowerInformationService::Shutdown()
-{
-  sShuttingDown = true;
-  delete sInstance;
-  sInstance = nullptr;
-}
-
-MacPowerInformationService::MacPowerInformationService()
-  : mRunLoopSource(nullptr)
-  , mLevel(kDefaultLevel)
-  , mCharging(kDefaultCharging)
-  , mRemainingTime(kDefaultRemainingTime)
-  , mShouldNotify(false)
-{
-  // IOPSGetTimeRemainingEstimate (and the related constants) are only available
-  // on 10.7, so we test for their presence at runtime.
-  sIOKitFramework = dlopen(IOKIT_FRAMEWORK_PATH, RTLD_LAZY | RTLD_LOCAL);
-  if (sIOKitFramework) {
-    sIOPSGetTimeRemainingEstimate =
-      (IOPSGetTimeRemainingEstimateFunc)dlsym(sIOKitFramework, "IOPSGetTimeRemainingEstimate");
-  } else {
-    sIOPSGetTimeRemainingEstimate = nullptr;
-  }
-}
-
-MacPowerInformationService::~MacPowerInformationService()
-{
-  MOZ_ASSERT(!mRunLoopSource,
-               "The observers have not been correctly removed! "
-               "(StopListening should have been called)");
-
-  if (sIOKitFramework) {
-    dlclose(sIOKitFramework);
-  }
-}
-
-void
-MacPowerInformationService::BeginListening()
-{
-  // Set ourselves up to be notified about changes.
-  MOZ_ASSERT(!mRunLoopSource, "IOPS Notification Loop Source already set up. "
-                              "(StopListening should have been called)");
-
-  mRunLoopSource = ::IOPSNotificationCreateRunLoopSource(HandleChange, this);
-  if (mRunLoopSource) {
-    ::CFRunLoopAddSource(::CFRunLoopGetCurrent(), mRunLoopSource,
-                         kCFRunLoopDefaultMode);
-
-    // Invoke our callback now so we have data if GetCurrentBatteryInformation is
-    // called before a change happens.
-    HandleChange(this);
-    mShouldNotify = true;
-  }
-}
-
-void
-MacPowerInformationService::StopListening()
-{
-  MOZ_ASSERT(mRunLoopSource, "IOPS Notification Loop Source not set up. "
-                             "(StopListening without BeginListening)");
-
-  ::CFRunLoopRemoveSource(::CFRunLoopGetCurrent(), mRunLoopSource,
-                          kCFRunLoopDefaultMode);
-  mRunLoopSource = nullptr;
-}
-
-void
-MacPowerInformationService::HandleChange(void* aContext) {
-  MacPowerInformationService* power =
-    static_cast<MacPowerInformationService*>(aContext);
-
-  CFTypeRef data = ::IOPSCopyPowerSourcesInfo();
-  if (!data) {
-    ::CFRelease(data);
-    return;
-  }
-
-  // Get the list of power sources.
-  CFArrayRef list = ::IOPSCopyPowerSourcesList(data);
-  if (!list) {
-    ::CFRelease(list);
-    return;
-  }
-
-  // Default values. These will be used if there are 0 sources or we can't find
-  // better information.
-  double level = kDefaultLevel;
-  double charging = kDefaultCharging;
-  double remainingTime = kDefaultRemainingTime;
-
-  // Look for the first battery power source to give us the information we need.
-  // Usually there's only 1 available, depending on current power source.
-  for (CFIndex i = 0; i < ::CFArrayGetCount(list); ++i) {
-    CFTypeRef source = ::CFArrayGetValueAtIndex(list, i);
-    CFDictionaryRef currPowerSourceDesc = ::IOPSGetPowerSourceDescription(data, source);
-    if (!currPowerSourceDesc) {
-      continue;
-    }
-
-    // Get a battery level estimate. This key is required.
-    int currentCapacity = 0;
-    const void* cfRef = ::CFDictionaryGetValue(currPowerSourceDesc, CFSTR(kIOPSCurrentCapacityKey));
-    ::CFNumberGetValue((CFNumberRef)cfRef, kCFNumberSInt32Type, &currentCapacity);
-
-    // This key is also required.
-    int maxCapacity = 0;
-    cfRef = ::CFDictionaryGetValue(currPowerSourceDesc, CFSTR(kIOPSMaxCapacityKey));
-    ::CFNumberGetValue((CFNumberRef)cfRef, kCFNumberSInt32Type, &maxCapacity);
-
-    if (maxCapacity > 0) {
-      level = static_cast<double>(currentCapacity)/static_cast<double>(maxCapacity);
-    }
-
-    // Find out if we're charging.
-    // This key is optional, we fallback to kDefaultCharging if the current power
-    // source doesn't have that info.
-    if(::CFDictionaryGetValueIfPresent(currPowerSourceDesc, CFSTR(kIOPSIsChargingKey), &cfRef)) {
-      charging = ::CFBooleanGetValue((CFBooleanRef)cfRef);
-
-      // Get an estimate of how long it's going to take until we're fully charged.
-      // This key is optional.
-      if (charging) {
-        // Default value that will be changed if we happen to find the actual
-        // remaining time.
-        remainingTime = level == 1.0 ? kDefaultRemainingTime : kUnknownRemainingTime;
-
-        if (::CFDictionaryGetValueIfPresent(currPowerSourceDesc,
-                CFSTR(kIOPSTimeToFullChargeKey), &cfRef)) {
-          int timeToCharge;
-          ::CFNumberGetValue((CFNumberRef)cfRef, kCFNumberIntType, &timeToCharge);
-          if (timeToCharge != kIOPSTimeRemainingUnknown) {
-            remainingTime = timeToCharge*60;
-          }
-        }
-      } else if (sIOPSGetTimeRemainingEstimate) { // not charging
-        // See if we can get a time estimate.
-        CFTimeInterval estimate = sIOPSGetTimeRemainingEstimate();
-        if (estimate == kIOPSTimeRemainingUnlimited || estimate == kIOPSTimeRemainingUnknown) {
-          remainingTime = kUnknownRemainingTime;
-        } else {
-          remainingTime = estimate;
-        }
-      }
-    }
-
-    break;
-  }
-
-  bool isNewData = level != power->mLevel || charging != power->mCharging ||
-                   remainingTime != power->mRemainingTime;
-
-  power->mRemainingTime = remainingTime;
-  power->mCharging = charging;
-  power->mLevel = level;
-
-  // Notify the observers if stuff changed.
-  if (power->mShouldNotify && isNewData) {
-    hal::NotifyBatteryChange(hal::BatteryInformation(power->mLevel,
-                                                     power->mCharging,
-                                                     power->mRemainingTime));
-  }
-
-  ::CFRelease(data);
-  ::CFRelease(list);
-}
-
-} // namespace hal_impl
-} // namespace mozilla