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(nsPIDOMWindow* aWindow)
  32   : DOMEventTargetHelper(aWindow)
  33   , mType(static_cast<ConnectionType>(kDefaultType))
  34   , mIsWifi(kDefaultIsWifi)
  35   , mDHCPGateway(kDefaultDHCPGateway)
  36 {
  37   hal::RegisterNetworkObserver(this);
  38
  39   hal::NetworkInformation networkInfo;
  40   hal::GetCurrentNetworkInformation(&networkInfo);
  41
  42   UpdateFromNetworkInfo(networkInfo);
  43 }
  44
  45 void
  46 Connection::Shutdown()
  47 {
  48   hal::UnregisterNetworkObserver(this);
  49 }
  50
  51 NS_IMETHODIMP
  52 Connection::GetIsWifi(bool *aIsWifi)
  53 {
  54   *aIsWifi = mIsWifi;
  55   return NS_OK;
  56 }
  57
  58 NS_IMETHODIMP
  59 Connection::GetDhcpGateway(uint32_t *aGW)
  60 {
  61   *aGW = mDHCPGateway;
  62   return NS_OK;
  63 }
  64
  65 void
  66 Connection::UpdateFromNetworkInfo(const hal::NetworkInformation& aNetworkInfo)
  67 {
  68   mType = static_cast<ConnectionType>(aNetworkInfo.type());
  69   mIsWifi = aNetworkInfo.isWifi();
  70   mDHCPGateway = aNetworkInfo.dhcpGateway();
  71 }
  72
  73 void
  74 Connection::Notify(const hal::NetworkInformation& aNetworkInfo)
  75 {
  76   ConnectionType previousType = mType;
  77
  78   UpdateFromNetworkInfo(aNetworkInfo);
  79
  80   if (previousType == mType) {
  81     return;
  82   }
  83
  84   DispatchTrustedEvent(CHANGE_EVENT_NAME);
  85 }
  86
  87 JSObject*
  88 Connection::WrapObject(JSContext* aCx)
  89 {
  90   return NetworkInformationBinding::Wrap(aCx, this);
  91 }
  92
  93 } // namespace network
  94 } // namespace dom
  95 } // namespace mozilla