1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/dom/bluetooth/BluetoothHidManager.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,270 @@
1.4 +/* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */
1.5 +/* vim: set ts=2 et sw=2 tw=80: */
1.6 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this file,
1.8 + * You can obtain one at http://mozilla.org/MPL/2.0/. */
1.9 +
1.10 +#include "base/basictypes.h"
1.11 +
1.12 +#include "BluetoothHidManager.h"
1.13 +
1.14 +#include "BluetoothCommon.h"
1.15 +#include "BluetoothService.h"
1.16 +#include "BluetoothUtils.h"
1.17 +
1.18 +#include "mozilla/dom/bluetooth/BluetoothTypes.h"
1.19 +#include "mozilla/Services.h"
1.20 +#include "mozilla/StaticPtr.h"
1.21 +#include "nsIObserverService.h"
1.22 +#include "MainThreadUtils.h"
1.23 +
1.24 +using namespace mozilla;
1.25 +USING_BLUETOOTH_NAMESPACE
1.26 +
1.27 +namespace {
1.28 + StaticRefPtr<BluetoothHidManager> sBluetoothHidManager;
1.29 + bool sInShutdown = false;
1.30 +} // anonymous namespace
1.31 +
1.32 +NS_IMETHODIMP
1.33 +BluetoothHidManager::Observe(nsISupports* aSubject,
1.34 + const char* aTopic,
1.35 + const char16_t* aData)
1.36 +{
1.37 + MOZ_ASSERT(sBluetoothHidManager);
1.38 +
1.39 + if (!strcmp(aTopic, NS_XPCOM_SHUTDOWN_OBSERVER_ID)) {
1.40 + HandleShutdown();
1.41 + return NS_OK;
1.42 + }
1.43 +
1.44 + MOZ_ASSERT(false, "BluetoothHidManager got unexpected topic!");
1.45 + return NS_ERROR_UNEXPECTED;
1.46 +}
1.47 +
1.48 +BluetoothHidManager::BluetoothHidManager()
1.49 +{
1.50 + Reset();
1.51 +}
1.52 +
1.53 +void
1.54 +BluetoothHidManager::Reset()
1.55 +{
1.56 + mConnected = false;
1.57 + mController = nullptr;
1.58 +}
1.59 +
1.60 +bool
1.61 +BluetoothHidManager::Init()
1.62 +{
1.63 + MOZ_ASSERT(NS_IsMainThread());
1.64 +
1.65 + nsCOMPtr<nsIObserverService> obs = services::GetObserverService();
1.66 + NS_ENSURE_TRUE(obs, false);
1.67 + if (NS_FAILED(obs->AddObserver(this, NS_XPCOM_SHUTDOWN_OBSERVER_ID, false))) {
1.68 + BT_WARNING("Failed to add shutdown observer!");
1.69 + return false;
1.70 + }
1.71 +
1.72 + return true;
1.73 +}
1.74 +
1.75 +BluetoothHidManager::~BluetoothHidManager()
1.76 +{
1.77 + nsCOMPtr<nsIObserverService> obs = services::GetObserverService();
1.78 + NS_ENSURE_TRUE_VOID(obs);
1.79 + if (NS_FAILED(obs->RemoveObserver(this, NS_XPCOM_SHUTDOWN_OBSERVER_ID))) {
1.80 + BT_WARNING("Failed to remove shutdown observer!");
1.81 + }
1.82 +}
1.83 +
1.84 +//static
1.85 +BluetoothHidManager*
1.86 +BluetoothHidManager::Get()
1.87 +{
1.88 + MOZ_ASSERT(NS_IsMainThread());
1.89 +
1.90 + // If we already exist, exit early
1.91 + if (sBluetoothHidManager) {
1.92 + return sBluetoothHidManager;
1.93 + }
1.94 +
1.95 + // If we're in shutdown, don't create a new instance
1.96 + NS_ENSURE_FALSE(sInShutdown, nullptr);
1.97 +
1.98 + // Create a new instance, register, and return
1.99 + BluetoothHidManager* manager = new BluetoothHidManager();
1.100 + NS_ENSURE_TRUE(manager->Init(), nullptr);
1.101 +
1.102 + sBluetoothHidManager = manager;
1.103 + return sBluetoothHidManager;
1.104 +}
1.105 +
1.106 +void
1.107 +BluetoothHidManager::HandleShutdown()
1.108 +{
1.109 + MOZ_ASSERT(NS_IsMainThread());
1.110 + sInShutdown = true;
1.111 + Disconnect(nullptr);
1.112 + sBluetoothHidManager = nullptr;
1.113 +}
1.114 +
1.115 +void
1.116 +BluetoothHidManager::Connect(const nsAString& aDeviceAddress,
1.117 + BluetoothProfileController* aController)
1.118 +{
1.119 + MOZ_ASSERT(NS_IsMainThread());
1.120 + MOZ_ASSERT(!aDeviceAddress.IsEmpty());
1.121 + MOZ_ASSERT(aController && !mController);
1.122 +
1.123 + BluetoothService* bs = BluetoothService::Get();
1.124 + if (!bs || sInShutdown) {
1.125 + aController->NotifyCompletion(NS_LITERAL_STRING(ERR_NO_AVAILABLE_RESOURCE));
1.126 + return;
1.127 + }
1.128 +
1.129 + if (mConnected) {
1.130 + aController->NotifyCompletion(NS_LITERAL_STRING(ERR_ALREADY_CONNECTED));
1.131 + return;
1.132 + }
1.133 +
1.134 + mDeviceAddress = aDeviceAddress;
1.135 + mController = aController;
1.136 +
1.137 + if (NS_FAILED(bs->SendInputMessage(aDeviceAddress,
1.138 + NS_LITERAL_STRING("Connect")))) {
1.139 + aController->NotifyCompletion(NS_LITERAL_STRING(ERR_NO_AVAILABLE_RESOURCE));
1.140 + return;
1.141 + }
1.142 +}
1.143 +
1.144 +void
1.145 +BluetoothHidManager::Disconnect(BluetoothProfileController* aController)
1.146 +{
1.147 + MOZ_ASSERT(NS_IsMainThread());
1.148 +
1.149 + BluetoothService* bs = BluetoothService::Get();
1.150 + if (!bs) {
1.151 + if (aController) {
1.152 + aController->NotifyCompletion(NS_LITERAL_STRING(ERR_NO_AVAILABLE_RESOURCE));
1.153 + }
1.154 + return;
1.155 + }
1.156 +
1.157 + if (!mConnected) {
1.158 + if (aController) {
1.159 + aController->NotifyCompletion(NS_LITERAL_STRING(ERR_ALREADY_DISCONNECTED));
1.160 + }
1.161 + return;
1.162 + }
1.163 +
1.164 + MOZ_ASSERT(!mDeviceAddress.IsEmpty());
1.165 + MOZ_ASSERT(!mController);
1.166 +
1.167 + mController = aController;
1.168 +
1.169 + if (NS_FAILED(bs->SendInputMessage(mDeviceAddress,
1.170 + NS_LITERAL_STRING("Disconnect")))) {
1.171 + aController->NotifyCompletion(NS_LITERAL_STRING(ERR_NO_AVAILABLE_RESOURCE));
1.172 + return;
1.173 + }
1.174 +}
1.175 +
1.176 +void
1.177 +BluetoothHidManager::OnConnect(const nsAString& aErrorStr)
1.178 +{
1.179 + MOZ_ASSERT(NS_IsMainThread());
1.180 +
1.181 + /**
1.182 + * On the one hand, notify the controller that we've done for outbound
1.183 + * connections. On the other hand, we do nothing for inbound connections.
1.184 + */
1.185 + NS_ENSURE_TRUE_VOID(mController);
1.186 +
1.187 + nsRefPtr<BluetoothProfileController> controller = mController.forget();
1.188 + controller->NotifyCompletion(aErrorStr);
1.189 +}
1.190 +
1.191 +void
1.192 +BluetoothHidManager::OnDisconnect(const nsAString& aErrorStr)
1.193 +{
1.194 + MOZ_ASSERT(NS_IsMainThread());
1.195 +
1.196 + /**
1.197 + * On the one hand, notify the controller that we've done for outbound
1.198 + * connections. On the other hand, we do nothing for inbound connections.
1.199 + */
1.200 + NS_ENSURE_TRUE_VOID(mController);
1.201 +
1.202 + nsRefPtr<BluetoothProfileController> controller = mController.forget();
1.203 + controller->NotifyCompletion(aErrorStr);
1.204 +}
1.205 +
1.206 +bool
1.207 +BluetoothHidManager::IsConnected()
1.208 +{
1.209 + return mConnected;
1.210 +}
1.211 +
1.212 +void
1.213 +BluetoothHidManager::HandleInputPropertyChanged(const BluetoothSignal& aSignal)
1.214 +{
1.215 + MOZ_ASSERT(NS_IsMainThread());
1.216 + MOZ_ASSERT(aSignal.value().type() == BluetoothValue::TArrayOfBluetoothNamedValue);
1.217 +
1.218 + const InfallibleTArray<BluetoothNamedValue>& arr =
1.219 + aSignal.value().get_ArrayOfBluetoothNamedValue();
1.220 + MOZ_ASSERT(arr.Length() == 1);
1.221 +
1.222 + const nsString& name = arr[0].name();
1.223 + const BluetoothValue& value = arr[0].value();
1.224 +
1.225 + if (name.EqualsLiteral("Connected")) {
1.226 + MOZ_ASSERT(value.type() == BluetoothValue::Tbool);
1.227 + MOZ_ASSERT(mConnected != value.get_bool());
1.228 +
1.229 + mConnected = value.get_bool();
1.230 + NotifyStatusChanged();
1.231 + if (mConnected) {
1.232 + OnConnect(EmptyString());
1.233 + } else {
1.234 + OnDisconnect(EmptyString());
1.235 + }
1.236 + }
1.237 +}
1.238 +
1.239 +void
1.240 +BluetoothHidManager::NotifyStatusChanged()
1.241 +{
1.242 + MOZ_ASSERT(NS_IsMainThread());
1.243 +
1.244 + NS_NAMED_LITERAL_STRING(type, BLUETOOTH_HID_STATUS_CHANGED_ID);
1.245 + InfallibleTArray<BluetoothNamedValue> parameters;
1.246 +
1.247 + BT_APPEND_NAMED_VALUE(parameters, "connected", mConnected);
1.248 + BT_APPEND_NAMED_VALUE(parameters, "address", mDeviceAddress);
1.249 +
1.250 + BT_ENSURE_TRUE_VOID_BROADCAST_SYSMSG(type, parameters);
1.251 +}
1.252 +
1.253 +void
1.254 +BluetoothHidManager::OnGetServiceChannel(const nsAString& aDeviceAddress,
1.255 + const nsAString& aServiceUuid,
1.256 + int aChannel)
1.257 +{
1.258 + // Do nothing here as bluez acquires service channel and connects for us
1.259 +}
1.260 +
1.261 +void
1.262 +BluetoothHidManager::OnUpdateSdpRecords(const nsAString& aDeviceAddress)
1.263 +{
1.264 + // Do nothing here as bluez acquires service channel and connects for us
1.265 +}
1.266 +
1.267 +void
1.268 +BluetoothHidManager::GetAddress(nsAString& aDeviceAddress)
1.269 +{
1.270 + aDeviceAddress = mDeviceAddress;
1.271 +}
1.272 +
1.273 +NS_IMPL_ISUPPORTS(BluetoothHidManager, nsIObserver)
