dom/network/Connection.cpp

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 #include <limits>
   7 #include "mozilla/Hal.h"
   8 #include "mozilla/dom/network/Connection.h"
   9 #include "nsIDOMClassInfo.h"
  10 #include "mozilla/Preferences.h"
  11 #include "Constants.h"
  12
  13 /**
  14  * We have to use macros here because our leak analysis tool things we are
  15  * leaking strings when we have |static const nsString|. Sad :(
  16  */
  17 #define CHANGE_EVENT_NAME NS_LITERAL_STRING("typechange")
  18
  19 namespace mozilla {
  20 namespace dom {
  21 namespace network {
  22
  23 NS_IMPL_QUERY_INTERFACE_INHERITED(Connection, DOMEventTargetHelper,
  24                                   nsINetworkProperties)
  25
  26 // Don't use |Connection| alone, since that confuses nsTraceRefcnt since
  27 // we're not the only class with that name.
  28 NS_IMPL_ADDREF_INHERITED(dom::network::Connection, DOMEventTargetHelper)
  29 NS_IMPL_RELEASE_INHERITED(dom::network::Connection, DOMEventTargetHelper)
  30
  31 Connection::Connection()
  32   : mType(static_cast<ConnectionType>(kDefaultType))
  33   , mIsWifi(kDefaultIsWifi)
  34   , mDHCPGateway(kDefaultDHCPGateway)
  35 {
  36   SetIsDOMBinding();
  37 }
  38
  39 void
  40 Connection::Init(nsPIDOMWindow* aWindow)
  41 {
  42   BindToOwner(aWindow);
  43
  44   hal::RegisterNetworkObserver(this);
  45
  46   hal::NetworkInformation networkInfo;
  47   hal::GetCurrentNetworkInformation(&networkInfo);
  48
  49   UpdateFromNetworkInfo(networkInfo);
  50 }
  51
  52 void
  53 Connection::Shutdown()
  54 {
  55   hal::UnregisterNetworkObserver(this);
  56 }
  57
  58 NS_IMETHODIMP
  59 Connection::GetIsWifi(bool *aIsWifi)
  60 {
  61   *aIsWifi = mIsWifi;
  62   return NS_OK;
  63 }
  64
  65 NS_IMETHODIMP
  66 Connection::GetDhcpGateway(uint32_t *aGW)
  67 {
  68   *aGW = mDHCPGateway;
  69   return NS_OK;
  70 }
  71
  72 void
  73 Connection::UpdateFromNetworkInfo(const hal::NetworkInformation& aNetworkInfo)
  74 {
  75   mType = static_cast<ConnectionType>(aNetworkInfo.type());
  76   mIsWifi = aNetworkInfo.isWifi();
  77   mDHCPGateway = aNetworkInfo.dhcpGateway();
  78 }
  79
  80 void
  81 Connection::Notify(const hal::NetworkInformation& aNetworkInfo)
  82 {
  83   ConnectionType previousType = mType;
  84
  85   UpdateFromNetworkInfo(aNetworkInfo);
  86
  87   if (previousType == mType) {
  88     return;
  89   }
  90
  91   DispatchTrustedEvent(CHANGE_EVENT_NAME);
  92 }
  93
  94 JSObject*
  95 Connection::WrapObject(JSContext* aCx)
  96 {
  97   return NetworkInformationBinding::Wrap(aCx, this);
  98 }
  99
 100 } // namespace network
 101 } // namespace dom
 102 } // namespace mozilla