LCOV - code coverage report
Current view: directory - dom/power - PowerManager.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 66 0 0.0 %
Date: 2012-06-02 Functions: 12 0 0.0 %

       1                 : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2                 : /* ***** BEGIN LICENSE BLOCK *****
       3                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       4                 :  *
       5                 :  * The contents of this file are subject to the Mozilla Public License Version
       6                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       7                 :  * the License. You may obtain a copy of the License at
       8                 :  * http://www.mozilla.org/MPL/
       9                 :  *
      10                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      11                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      12                 :  * for the specific language governing rights and limitations under the
      13                 :  * License.
      14                 :  *
      15                 :  * The Original Code is mozilla.org code.
      16                 :  *
      17                 :  * The Initial Developer of the Original Code is Mozilla Foundation
      18                 :  * Portions created by the Initial Developer are Copyright (C) 2011
      19                 :  * the Initial Developer. All Rights Reserved.
      20                 :  *
      21                 :  * Contributor(s):
      22                 :  *   Kan-Ru Chen <kchen@mozilla.com> (Original Author)
      23                 :  *
      24                 :  * Alternatively, the contents of this file may be used under the terms of
      25                 :  * either of the GNU General Public License Version 2 or later (the "GPL"),
      26                 :  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      27                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      28                 :  * of those above. If you wish to allow use of your version of this file only
      29                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      30                 :  * use your version of this file under the terms of the MPL, indicate your
      31                 :  * decision by deleting the provisions above and replace them with the notice
      32                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      33                 :  * the provisions above, a recipient may use your version of this file under
      34                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      35                 :  *
      36                 :  * ***** END LICENSE BLOCK ***** */
      37                 : 
      38                 : #include "PowerManager.h"
      39                 : #include "WakeLock.h"
      40                 : #include "nsContentUtils.h"
      41                 : #include "nsDOMClassInfoID.h"
      42                 : #include "nsIDOMWakeLockListener.h"
      43                 : #include "nsIPowerManagerService.h"
      44                 : #include "nsIPrincipal.h"
      45                 : #include "nsPIDOMWindow.h"
      46                 : #include "nsServiceManagerUtils.h"
      47                 : 
      48                 : DOMCI_DATA(MozPowerManager, mozilla::dom::power::PowerManager)
      49                 : 
      50                 : namespace mozilla {
      51                 : namespace dom {
      52                 : namespace power {
      53                 : 
      54               0 : NS_INTERFACE_MAP_BEGIN(PowerManager)
      55               0 :   NS_INTERFACE_MAP_ENTRY(nsIDOMMozPowerManager)
      56               0 :   NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIDOMMozPowerManager)
      57               0 :   NS_INTERFACE_MAP_ENTRY(nsIDOMMozWakeLockListener)
      58               0 :   NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(MozPowerManager)
      59               0 : NS_INTERFACE_MAP_END
      60                 : 
      61               0 : NS_IMPL_ADDREF(PowerManager)
      62               0 : NS_IMPL_RELEASE(PowerManager)
      63                 : 
      64                 : nsresult
      65               0 : PowerManager::Init(nsIDOMWindow *aWindow)
      66                 : {
      67               0 :   mWindow = do_GetWeakReference(aWindow);
      68                 : 
      69                 :   nsCOMPtr<nsIPowerManagerService> pmService =
      70               0 :     do_GetService(POWERMANAGERSERVICE_CONTRACTID);
      71               0 :   NS_ENSURE_STATE(pmService);
      72                 : 
      73                 :   // Add ourself to the global notification list.
      74               0 :   pmService->AddWakeLockListener(this);
      75               0 :   return NS_OK;
      76                 : }
      77                 : 
      78                 : nsresult
      79               0 : PowerManager::Shutdown()
      80                 : {
      81                 :   nsCOMPtr<nsIPowerManagerService> pmService =
      82               0 :     do_GetService(POWERMANAGERSERVICE_CONTRACTID);
      83               0 :   NS_ENSURE_STATE(pmService);
      84                 : 
      85                 :   // Remove ourself from the global notification list.
      86               0 :   pmService->RemoveWakeLockListener(this);
      87               0 :   return NS_OK;
      88                 : }
      89                 : 
      90                 : nsresult
      91               0 : PowerManager::CheckPermission()
      92                 : {
      93               0 :   nsCOMPtr<nsPIDOMWindow> win = do_QueryReferent(mWindow);
      94               0 :   NS_ENSURE_STATE(win);
      95               0 :   nsCOMPtr<nsIDocument> doc = do_QueryInterface(win->GetExtantDocument());
      96               0 :   NS_ENSURE_STATE(doc);
      97                 : 
      98               0 :   nsCOMPtr<nsIURI> uri;
      99               0 :   doc->NodePrincipal()->GetURI(getter_AddRefs(uri));
     100                 : 
     101               0 :   if (!nsContentUtils::URIIsChromeOrInPref(uri, "dom.power.whitelist")) {
     102               0 :     return NS_ERROR_DOM_SECURITY_ERR;
     103                 :   }
     104                 : 
     105               0 :   return NS_OK;
     106                 : }
     107                 : 
     108                 : NS_IMETHODIMP
     109               0 : PowerManager::Reboot()
     110                 : {
     111               0 :   nsresult rv = CheckPermission();
     112               0 :   NS_ENSURE_SUCCESS(rv, rv);
     113                 : 
     114                 :   nsCOMPtr<nsIPowerManagerService> pmService =
     115               0 :     do_GetService(POWERMANAGERSERVICE_CONTRACTID);
     116               0 :   NS_ENSURE_STATE(pmService);
     117                 : 
     118               0 :   pmService->Reboot();
     119                 : 
     120               0 :   return NS_OK;
     121                 : }
     122                 : 
     123                 : NS_IMETHODIMP
     124               0 : PowerManager::PowerOff()
     125                 : {
     126               0 :   nsresult rv = CheckPermission();
     127               0 :   NS_ENSURE_SUCCESS(rv, rv);
     128                 : 
     129                 :   nsCOMPtr<nsIPowerManagerService> pmService =
     130               0 :     do_GetService(POWERMANAGERSERVICE_CONTRACTID);
     131               0 :   NS_ENSURE_STATE(pmService);
     132                 : 
     133               0 :   pmService->PowerOff();
     134                 : 
     135               0 :   return NS_OK;
     136                 : }
     137                 : 
     138                 : NS_IMETHODIMP
     139               0 : PowerManager::AddWakeLockListener(nsIDOMMozWakeLockListener *aListener)
     140                 : {
     141               0 :   nsresult rv = CheckPermission();
     142               0 :   NS_ENSURE_SUCCESS(rv, rv);
     143                 : 
     144                 :   // already added? bail out.
     145               0 :   if (mListeners.Contains(aListener))
     146               0 :     return NS_OK;
     147                 : 
     148               0 :   mListeners.AppendElement(aListener);
     149               0 :   return NS_OK;
     150                 : }
     151                 : 
     152                 : NS_IMETHODIMP
     153               0 : PowerManager::RemoveWakeLockListener(nsIDOMMozWakeLockListener *aListener)
     154                 : {
     155               0 :   nsresult rv = CheckPermission();
     156               0 :   NS_ENSURE_SUCCESS(rv, rv);
     157                 : 
     158               0 :   mListeners.RemoveElement(aListener);
     159               0 :   return NS_OK;
     160                 : }
     161                 : 
     162                 : NS_IMETHODIMP
     163               0 : PowerManager::GetWakeLockState(const nsAString &aTopic, nsAString &aState)
     164                 : {
     165               0 :   nsresult rv = CheckPermission();
     166               0 :   NS_ENSURE_SUCCESS(rv, rv);
     167                 : 
     168                 :   nsCOMPtr<nsIPowerManagerService> pmService =
     169               0 :     do_GetService(POWERMANAGERSERVICE_CONTRACTID);
     170               0 :   NS_ENSURE_STATE(pmService);
     171                 : 
     172               0 :   return pmService->GetWakeLockState(aTopic, aState);
     173                 : }
     174                 : 
     175                 : NS_IMETHODIMP
     176               0 : PowerManager::Callback(const nsAString &aTopic, const nsAString &aState)
     177                 : {
     178                 :   /**
     179                 :    * We maintain a local listener list instead of using the global
     180                 :    * list so that when the window is destroyed we don't have to
     181                 :    * cleanup the mess.
     182                 :    * Copy the listeners list before we walk through the callbacks
     183                 :    * because the callbacks may install new listeners. We expect no
     184                 :    * more than one listener per window, so it shouldn't be too long.
     185                 :    */
     186               0 :   nsAutoTArray<nsCOMPtr<nsIDOMMozWakeLockListener>, 2> listeners(mListeners);
     187               0 :   for (PRUint32 i = 0; i < listeners.Length(); ++i) {
     188               0 :     listeners[i]->Callback(aTopic, aState);
     189                 :   }
     190                 : 
     191               0 :   return NS_OK;
     192                 : }
     193                 : 
     194                 : } // power
     195                 : } // dom
     196                 : } // mozilla

Generated by: LCOV version 1.7