src/third_party/WebKit/Source/modules/netinfo/WorkerNavigatorNetworkInformation.cpp

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "config.h"
   6 #include "modules/netinfo/WorkerNavigatorNetworkInformation.h"
   7
   8 #include "core/workers/WorkerNavigator.h"
   9 #include "modules/netinfo/NetworkInformation.h"
  10
  11 namespace blink {
  12
  13 WorkerNavigatorNetworkInformation::WorkerNavigatorNetworkInformation(WorkerNavigator& navigator, ExecutionContext* context)
  14 {
  15 }
  16
  17 WorkerNavigatorNetworkInformation::~WorkerNavigatorNetworkInformation()
  18 {
  19 }
  20
  21 WorkerNavigatorNetworkInformation& WorkerNavigatorNetworkInformation::from(WorkerNavigator& navigator, ExecutionContext* context)
  22 {
  23     WorkerNavigatorNetworkInformation* supplement = toWorkerNavigatorNetworkInformation(navigator, context);
  24     if (!supplement) {
  25         supplement = new WorkerNavigatorNetworkInformation(navigator, context);
  26         provideTo(navigator, supplementName(), adoptPtrWillBeNoop(supplement));
  27     }
  28     return *supplement;
  29 }
  30
  31 WorkerNavigatorNetworkInformation* WorkerNavigatorNetworkInformation::toWorkerNavigatorNetworkInformation(WorkerNavigator& navigator, ExecutionContext* context)
  32 {
  33     return static_cast<WorkerNavigatorNetworkInformation*>(WillBeHeapSupplement<WorkerNavigator>::from(navigator, supplementName()));
  34 }
  35
  36 const char* WorkerNavigatorNetworkInformation::supplementName()
  37 {
  38     return "WorkerNavigatorNetworkInformation";
  39 }
  40
  41 NetworkInformation* WorkerNavigatorNetworkInformation::connection(ExecutionContext* context, WorkerNavigator& navigator)
  42 {
  43     return WorkerNavigatorNetworkInformation::from(navigator, context).connection(context);
  44 }
  45
  46 void WorkerNavigatorNetworkInformation::trace(Visitor* visitor)
  47 {
  48     visitor->trace(m_connection);
  49     WillBeHeapSupplement<WorkerNavigator>::trace(visitor);
  50 }
  51
  52 NetworkInformation* WorkerNavigatorNetworkInformation::connection(ExecutionContext* context)
  53 {
  54     ASSERT(context);
  55     if (!m_connection)
  56         m_connection = NetworkInformation::create(context);
  57     return m_connection.get();
  58 }
  59
  60 } // namespace blink