mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
143 lines
3.5 KiB
C++
143 lines
3.5 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/Hal.h"
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#include "mozilla/HalWakeLock.h"
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#include "mozilla/ClearOnShutdown.h"
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#include "nsIDOMWakeLockListener.h"
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#include "nsIDOMWindow.h"
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#include "PowerManagerService.h"
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#include "WakeLock.h"
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namespace mozilla {
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namespace dom {
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namespace power {
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NS_IMPL_ISUPPORTS1(PowerManagerService, nsIPowerManagerService)
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/* static */ StaticRefPtr<PowerManagerService> PowerManagerService::sSingleton;
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/* static */ already_AddRefed<nsIPowerManagerService>
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PowerManagerService::GetInstance()
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{
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if (!sSingleton) {
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sSingleton = new PowerManagerService();
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sSingleton->Init();
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ClearOnShutdown(&sSingleton);
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}
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nsCOMPtr<nsIPowerManagerService> service(do_QueryInterface(sSingleton));
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return service.forget();
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}
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void
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PowerManagerService::Init()
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{
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hal::RegisterWakeLockObserver(this);
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}
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PowerManagerService::~PowerManagerService()
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{
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hal::UnregisterWakeLockObserver(this);
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}
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void
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PowerManagerService::ComputeWakeLockState(const hal::WakeLockInformation& aWakeLockInfo,
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nsAString &aState)
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{
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hal::WakeLockState state = hal::ComputeWakeLockState(aWakeLockInfo.numLocks(),
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aWakeLockInfo.numHidden());
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switch (state) {
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case hal::WAKE_LOCK_STATE_UNLOCKED:
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aState.AssignLiteral("unlocked");
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break;
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case hal::WAKE_LOCK_STATE_HIDDEN:
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aState.AssignLiteral("locked-background");
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break;
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case hal::WAKE_LOCK_STATE_VISIBLE:
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aState.AssignLiteral("locked-foreground");
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break;
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}
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}
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void
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PowerManagerService::Notify(const hal::WakeLockInformation& aWakeLockInfo)
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{
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nsAutoString state;
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ComputeWakeLockState(aWakeLockInfo, state);
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/**
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* Copy the listeners list before we walk through the callbacks
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* because the callbacks may install new listeners. We expect no
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* more than one listener per window, so it shouldn't be too long.
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*/
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nsAutoTArray<nsCOMPtr<nsIDOMMozWakeLockListener>, 2> listeners(mWakeLockListeners);
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for (PRUint32 i = 0; i < listeners.Length(); ++i) {
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listeners[i]->Callback(aWakeLockInfo.topic(), state);
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}
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}
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NS_IMETHODIMP
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PowerManagerService::Reboot()
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{
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hal::Reboot();
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return NS_OK;
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}
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NS_IMETHODIMP
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PowerManagerService::PowerOff()
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{
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hal::PowerOff();
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return NS_OK;
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}
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NS_IMETHODIMP
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PowerManagerService::AddWakeLockListener(nsIDOMMozWakeLockListener *aListener)
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{
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if (mWakeLockListeners.Contains(aListener))
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return NS_OK;
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mWakeLockListeners.AppendElement(aListener);
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return NS_OK;
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}
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NS_IMETHODIMP
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PowerManagerService::RemoveWakeLockListener(nsIDOMMozWakeLockListener *aListener)
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{
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mWakeLockListeners.RemoveElement(aListener);
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return NS_OK;
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}
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NS_IMETHODIMP
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PowerManagerService::GetWakeLockState(const nsAString &aTopic, nsAString &aState)
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{
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hal::WakeLockInformation info;
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hal::GetWakeLockInfo(aTopic, &info);
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ComputeWakeLockState(info, aState);
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return NS_OK;
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}
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NS_IMETHODIMP
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PowerManagerService::NewWakeLock(const nsAString &aTopic,
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nsIDOMWindow *aWindow,
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nsIDOMMozWakeLock **aWakeLock)
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{
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nsRefPtr<WakeLock> wakelock = new WakeLock();
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nsresult rv = wakelock->Init(aTopic, aWindow);
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NS_ENSURE_SUCCESS(rv, rv);
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nsCOMPtr<nsIDOMMozWakeLock> wl(wakelock);
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wl.forget(aWakeLock);
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return NS_OK;
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}
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} // power
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} // dom
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} // mozilla
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