src/chrome/browser/extensions/api/bluetooth/bluetooth_extension_function.cc

   1 // Copyright (c) 2012 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 "chrome/browser/extensions/api/bluetooth/bluetooth_extension_function.h"
   6
   7 #include "base/memory/ref_counted.h"
   8 #include "chrome/browser/extensions/api/bluetooth/bluetooth_api.h"
   9 #include "chrome/browser/extensions/api/bluetooth/bluetooth_event_router.h"
  10 #include "content/public/browser/browser_thread.h"
  11 #include "device/bluetooth/bluetooth_adapter.h"
  12 #include "device/bluetooth/bluetooth_adapter_factory.h"
  13
  14 using content::BrowserThread;
  15
  16 namespace {
  17
  18 const char kPlatformNotSupported[] =
  19     "This operation is not supported on your platform";
  20
  21 extensions::BluetoothEventRouter* GetEventRouter(
  22     content::BrowserContext* context) {
  23   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
  24   return extensions::BluetoothAPI::Get(context)->event_router();
  25 }
  26
  27 bool IsBluetoothSupported(content::BrowserContext* context) {
  28   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
  29   return GetEventRouter(context)->IsBluetoothSupported();
  30 }
  31
  32 void GetAdapter(const device::BluetoothAdapterFactory::AdapterCallback callback,
  33                 content::BrowserContext* context) {
  34   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
  35   GetEventRouter(context)->GetAdapter(callback);
  36 }
  37
  38 }  // namespace
  39
  40 namespace extensions {
  41 namespace api {
  42
  43 BluetoothExtensionFunction::BluetoothExtensionFunction() {
  44 }
  45
  46 BluetoothExtensionFunction::~BluetoothExtensionFunction() {
  47 }
  48
  49 bool BluetoothExtensionFunction::RunAsync() {
  50   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
  51
  52   if (!IsBluetoothSupported(browser_context())) {
  53     SetError(kPlatformNotSupported);
  54     return false;
  55   }
  56   GetAdapter(base::Bind(&BluetoothExtensionFunction::RunOnAdapterReady, this),
  57              browser_context());
  58
  59   return true;
  60 }
  61
  62 void BluetoothExtensionFunction::RunOnAdapterReady(
  63     scoped_refptr<device::BluetoothAdapter> adapter) {
  64   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
  65   DoWork(adapter);
  66 }
  67
  68 }  // namespace api
  69 }  // namespace extensions